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-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h105
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h112
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h162
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h103
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h60
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h187
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h168
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h76
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h100
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h68
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h130
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h97
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api.h222
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api_msg.h162
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/arch.h233
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/debug.h97
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/def.h47
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dhcp.h246
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dns.h97
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/err.h87
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/init.h72
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/mem.h107
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp.h116
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp_std.h102
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netbuf.h77
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netdb.h111
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netif.h263
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netifapi.h100
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/opt.h1820
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/pbuf.h120
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/raw.h97
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sio.h81
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp.h364
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h101
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h311
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h262
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sockets.h357
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/stats.h283
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sys.h243
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcp.h699
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcpip.h141
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/udp.h150
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/etharp.h180
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/loopif.h53
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h161
-rw-r--r--firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/slipif.h50
46 files changed, 8980 insertions, 0 deletions
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h
new file mode 100644
index 000000000..076a2ed23
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h
@@ -0,0 +1,105 @@
+/**
+ * @file
+ *
+ * AutoIP Automatic LinkLocal IP Configuration
+ */
+
+/*
+ *
+ * Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Dominik Spies <kontakt@dspies.de>
+ *
+ * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
+ * with RFC 3927.
+ *
+ *
+ * Please coordinate changes and requests with Dominik Spies
+ * <kontakt@dspies.de>
+ */
+
+#ifndef __LWIP_AUTOIP_H__
+#define __LWIP_AUTOIP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/netif.h"
+#include "lwip/udp.h"
+#include "netif/etharp.h"
+
+/* AutoIP Timing */
+#define AUTOIP_TMR_INTERVAL 100
+#define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL)
+
+/* RFC 3927 Constants */
+#define PROBE_WAIT 1 /* second (initial random delay) */
+#define PROBE_MIN 1 /* second (minimum delay till repeated probe) */
+#define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */
+#define PROBE_NUM 3 /* (number of probe packets) */
+#define ANNOUNCE_NUM 2 /* (number of announcement packets) */
+#define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */
+#define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */
+#define MAX_CONFLICTS 10 /* (max conflicts before rate limiting) */
+#define RATE_LIMIT_INTERVAL 60 /* seconds (delay between successive attempts) */
+#define DEFEND_INTERVAL 10 /* seconds (min. wait between defensive ARPs) */
+
+/* AutoIP client states */
+#define AUTOIP_STATE_OFF 0
+#define AUTOIP_STATE_PROBING 1
+#define AUTOIP_STATE_ANNOUNCING 2
+#define AUTOIP_STATE_BOUND 3
+
+struct autoip
+{
+ struct ip_addr llipaddr; /* the currently selected, probed, announced or used LL IP-Address */
+ u8_t state; /* current AutoIP state machine state */
+ u8_t sent_num; /* sent number of probes or announces, dependent on state */
+ u16_t ttw; /* ticks to wait, tick is AUTOIP_TMR_INTERVAL long */
+ u8_t lastconflict; /* ticks until a conflict can be solved by defending */
+ u8_t tried_llipaddr; /* total number of probed/used Link Local IP-Addresses */
+};
+
+
+/** Init srand, has to be called before entering mainloop */
+void autoip_init(void);
+
+/** Start AutoIP client */
+err_t autoip_start(struct netif *netif);
+
+/** Stop AutoIP client */
+err_t autoip_stop(struct netif *netif);
+
+/** Handles every incoming ARP Packet, called by etharp_arp_input */
+void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr);
+
+/** Has to be called in loop every AUTOIP_TMR_INTERVAL milliseconds */
+void autoip_tmr(void);
+
+#endif /* LWIP_AUTOIP */
+
+#endif /* __LWIP_AUTOIP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h
new file mode 100644
index 000000000..ff838f43a
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ICMP_H__
+#define __LWIP_ICMP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ICMP_ER 0 /* echo reply */
+#define ICMP_DUR 3 /* destination unreachable */
+#define ICMP_SQ 4 /* source quench */
+#define ICMP_RD 5 /* redirect */
+#define ICMP_ECHO 8 /* echo */
+#define ICMP_TE 11 /* time exceeded */
+#define ICMP_PP 12 /* parameter problem */
+#define ICMP_TS 13 /* timestamp */
+#define ICMP_TSR 14 /* timestamp reply */
+#define ICMP_IRQ 15 /* information request */
+#define ICMP_IR 16 /* information reply */
+
+enum icmp_dur_type {
+ ICMP_DUR_NET = 0, /* net unreachable */
+ ICMP_DUR_HOST = 1, /* host unreachable */
+ ICMP_DUR_PROTO = 2, /* protocol unreachable */
+ ICMP_DUR_PORT = 3, /* port unreachable */
+ ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
+ ICMP_DUR_SR = 5 /* source route failed */
+};
+
+enum icmp_te_type {
+ ICMP_TE_TTL = 0, /* time to live exceeded in transit */
+ ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
+};
+
+void icmp_input(struct pbuf *p, struct netif *inp);
+
+void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
+void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+/** This is the standard ICMP header only that the u32_t data
+ * is splitted to two u16_t like ICMP echo needs it.
+ * This header is also used for other ICMP types that do not
+ * use the data part.
+ */
+PACK_STRUCT_BEGIN
+struct icmp_echo_hdr {
+ PACK_STRUCT_FIELD(u8_t type);
+ PACK_STRUCT_FIELD(u8_t code);
+ PACK_STRUCT_FIELD(u16_t chksum);
+ PACK_STRUCT_FIELD(u16_t id);
+ PACK_STRUCT_FIELD(u16_t seqno);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#define ICMPH_TYPE(hdr) ((hdr)->type)
+#define ICMPH_CODE(hdr) ((hdr)->code)
+
+/** Combines type and code to an u16_t */
+#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t))
+#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_ICMP */
+
+#endif /* __LWIP_ICMP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h
new file mode 100644
index 000000000..59c933f35
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2002 CITEL Technologies Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is a contribution to the lwIP TCP/IP stack.
+ * The Swedish Institute of Computer Science and Adam Dunkels
+ * are specifically granted permission to redistribute this
+ * source code.
+*/
+
+#ifndef __LWIP_IGMP_H__
+#define __LWIP_IGMP_H__
+
+#include "lwip/opt.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netif.h"
+#include "lwip/pbuf.h"
+
+#if LWIP_IGMP /* don't build if not configured for use in lwipopts.h */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * IGMP constants
+ */
+#define IP_PROTO_IGMP 2
+#define IGMP_TTL 1
+#define IGMP_MINLEN 8
+#define ROUTER_ALERT 0x9404
+#define ROUTER_ALERTLEN 4
+
+/*
+ * IGMP message types, including version number.
+ */
+#define IGMP_MEMB_QUERY 0x11 /* Membership query */
+#define IGMP_V1_MEMB_REPORT 0x12 /* Ver. 1 membership report */
+#define IGMP_V2_MEMB_REPORT 0x16 /* Ver. 2 membership report */
+#define IGMP_LEAVE_GROUP 0x17 /* Leave-group message */
+
+/* IGMP timer */
+#define IGMP_TMR_INTERVAL 100 /* Milliseconds */
+#define IGMP_V1_DELAYING_MEMBER_TMR (1000/IGMP_TMR_INTERVAL)
+#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL)
+
+/* MAC Filter Actions */
+#define IGMP_DEL_MAC_FILTER 0
+#define IGMP_ADD_MAC_FILTER 1
+
+/* Group membership states */
+#define IGMP_GROUP_NON_MEMBER 0
+#define IGMP_GROUP_DELAYING_MEMBER 1
+#define IGMP_GROUP_IDLE_MEMBER 2
+
+/*
+ * IGMP packet format.
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct igmp_msg {
+ PACK_STRUCT_FIELD(u8_t igmp_msgtype);
+ PACK_STRUCT_FIELD(u8_t igmp_maxresp);
+ PACK_STRUCT_FIELD(u16_t igmp_checksum);
+ PACK_STRUCT_FIELD(struct ip_addr igmp_group_address);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+/*
+ * now a group structure - there is
+ * a list of groups for each interface
+ * these should really be linked from the interface, but
+ * if we keep them separate we will not affect the lwip original code
+ * too much
+ *
+ * There will be a group for the all systems group address but this
+ * will not run the state machine as it is used to kick off reports
+ * from all the other groups
+ */
+
+struct igmp_group {
+ struct igmp_group *next;
+ struct netif *interface;
+ struct ip_addr group_address;
+ u8_t last_reporter_flag; /* signifies we were the last person to report */
+ u8_t group_state;
+ u16_t timer;
+ u8_t use; /* counter of simultaneous uses */
+};
+
+
+/* Prototypes */
+void igmp_init(void);
+
+err_t igmp_start( struct netif *netif);
+
+err_t igmp_stop( struct netif *netif);
+
+void igmp_report_groups( struct netif *netif);
+
+struct igmp_group *igmp_lookfor_group( struct netif *ifp, struct ip_addr *addr);
+
+struct igmp_group *igmp_lookup_group( struct netif *ifp, struct ip_addr *addr);
+
+err_t igmp_remove_group( struct igmp_group *group);
+
+void igmp_input( struct pbuf *p, struct netif *inp, struct ip_addr *dest);
+
+err_t igmp_joingroup( struct ip_addr *ifaddr, struct ip_addr *groupaddr);
+
+err_t igmp_leavegroup( struct ip_addr *ifaddr, struct ip_addr *groupaddr);
+
+void igmp_tmr(void);
+
+void igmp_timeout( struct igmp_group *group);
+
+void igmp_start_timer( struct igmp_group *group, u8_t max_time);
+
+void igmp_stop_timer( struct igmp_group *group);
+
+void igmp_delaying_member( struct igmp_group *group, u8_t maxresp);
+
+err_t igmp_ip_output_if( struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, u8_t ttl, u8_t proto, struct netif *netif);
+
+void igmp_send( struct igmp_group *group, u8_t type);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_IGMP */
+
+#endif /* __LWIP_IGMP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h
new file mode 100644
index 000000000..6f30d0d12
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INET_H__
+#define __LWIP_INET_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For compatibility with BSD code */
+struct in_addr {
+ u32_t s_addr;
+};
+
+#define INADDR_NONE ((u32_t)0xffffffffUL) /* 255.255.255.255 */
+#define INADDR_LOOPBACK ((u32_t)0x7f000001UL) /* 127.0.0.1 */
+#define INADDR_ANY ((u32_t)0x00000000UL) /* 0.0.0.0 */
+#define INADDR_BROADCAST ((u32_t)0xffffffffUL) /* 255.255.255.255 */
+
+u32_t inet_addr(const char *cp);
+int inet_aton(const char *cp, struct in_addr *addr);
+char *inet_ntoa(struct in_addr addr); /* returns ptr to static buffer; not reentrant! */
+
+#ifdef htons
+#undef htons
+#endif /* htons */
+#ifdef htonl
+#undef htonl
+#endif /* htonl */
+#ifdef ntohs
+#undef ntohs
+#endif /* ntohs */
+#ifdef ntohl
+#undef ntohl
+#endif /* ntohl */
+
+#ifndef LWIP_PLATFORM_BYTESWAP
+#define LWIP_PLATFORM_BYTESWAP 0
+#endif
+
+#if BYTE_ORDER == BIG_ENDIAN
+#define htons(x) (x)
+#define ntohs(x) (x)
+#define htonl(x) (x)
+#define ntohl(x) (x)
+#else /* BYTE_ORDER != BIG_ENDIAN */
+#ifdef LWIP_PREFIX_BYTEORDER_FUNCS
+/* workaround for naming collisions on some platforms */
+#define htons lwip_htons
+#define ntohs lwip_ntohs
+#define htonl lwip_htonl
+#define ntohl lwip_ntohl
+#endif /* LWIP_PREFIX_BYTEORDER_FUNCS */
+#if LWIP_PLATFORM_BYTESWAP
+#define htons(x) LWIP_PLATFORM_HTONS(x)
+#define ntohs(x) LWIP_PLATFORM_HTONS(x)
+#define htonl(x) LWIP_PLATFORM_HTONL(x)
+#define ntohl(x) LWIP_PLATFORM_HTONL(x)
+#else /* LWIP_PLATFORM_BYTESWAP */
+u16_t htons(u16_t x);
+u16_t ntohs(u16_t x);
+u32_t htonl(u32_t x);
+u32_t ntohl(u32_t x);
+#endif /* LWIP_PLATFORM_BYTESWAP */
+
+#endif /* BYTE_ORDER == BIG_ENDIAN */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INET_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h
new file mode 100644
index 000000000..5cae59cbd
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INET_CHKSUM_H__
+#define __LWIP_INET_CHKSUM_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+u16_t inet_chksum(void *dataptr, u16_t len);
+u16_t inet_chksum_pbuf(struct pbuf *p);
+u16_t inet_chksum_pseudo(struct pbuf *p,
+ struct ip_addr *src, struct ip_addr *dest,
+ u8_t proto, u16_t proto_len);
+#if LWIP_UDPLITE
+u16_t inet_chksum_pseudo_partial(struct pbuf *p,
+ struct ip_addr *src, struct ip_addr *dest,
+ u8_t proto, u16_t proto_len, u16_t chksum_len);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INET_H__ */
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h
new file mode 100644
index 000000000..14eba3ca5
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_IP_H__
+#define __LWIP_IP_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/def.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Currently, the function ip_output_if_opt() is only used with IGMP */
+#define IP_OPTIONS_SEND LWIP_IGMP
+
+#define IP_HLEN 20
+
+#define IP_PROTO_ICMP 1
+#define IP_PROTO_UDP 17
+#define IP_PROTO_UDPLITE 136
+#define IP_PROTO_TCP 6
+
+/* This is passed as the destination address to ip_output_if (not
+ to ip_output), meaning that an IP header already is constructed
+ in the pbuf. This is used when TCP retransmits. */
+#ifdef IP_HDRINCL
+#undef IP_HDRINCL
+#endif /* IP_HDRINCL */
+#define IP_HDRINCL NULL
+
+#if LWIP_NETIF_HWADDRHINT
+#define IP_PCB_ADDRHINT ;u8_t addr_hint
+#else
+#define IP_PCB_ADDRHINT
+#endif /* LWIP_NETIF_HWADDRHINT */
+
+/* This is the common part of all PCB types. It needs to be at the
+ beginning of a PCB type definition. It is located here so that
+ changes to this common part are made in one location instead of
+ having to change all PCB structs. */
+#define IP_PCB \
+ /* ip addresses in network byte order */ \
+ struct ip_addr local_ip; \
+ struct ip_addr remote_ip; \
+ /* Socket options */ \
+ u16_t so_options; \
+ /* Type Of Service */ \
+ u8_t tos; \
+ /* Time To Live */ \
+ u8_t ttl \
+ /* link layer address resolution hint */ \
+ IP_PCB_ADDRHINT
+
+struct ip_pcb {
+/* Common members of all PCB types */
+ IP_PCB;
+};
+
+/*
+ * Option flags per-socket. These are the same like SO_XXX.
+ */
+#define SOF_DEBUG (u16_t)0x0001U /* turn on debugging info recording */
+#define SOF_ACCEPTCONN (u16_t)0x0002U /* socket has had listen() */
+#define SOF_REUSEADDR (u16_t)0x0004U /* allow local address reuse */
+#define SOF_KEEPALIVE (u16_t)0x0008U /* keep connections alive */
+#define SOF_DONTROUTE (u16_t)0x0010U /* just use interface addresses */
+#define SOF_BROADCAST (u16_t)0x0020U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
+#define SOF_USELOOPBACK (u16_t)0x0040U /* bypass hardware when possible */
+#define SOF_LINGER (u16_t)0x0080U /* linger on close if data present */
+#define SOF_OOBINLINE (u16_t)0x0100U /* leave received OOB data in line */
+#define SOF_REUSEPORT (u16_t)0x0200U /* allow local address & port reuse */
+
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_hdr {
+ /* version / header length / type of service */
+ PACK_STRUCT_FIELD(u16_t _v_hl_tos);
+ /* total length */
+ PACK_STRUCT_FIELD(u16_t _len);
+ /* identification */
+ PACK_STRUCT_FIELD(u16_t _id);
+ /* fragment offset field */
+ PACK_STRUCT_FIELD(u16_t _offset);
+#define IP_RF 0x8000 /* reserved fragment flag */
+#define IP_DF 0x4000 /* dont fragment flag */
+#define IP_MF 0x2000 /* more fragments flag */
+#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
+ /* time to live / protocol*/
+ PACK_STRUCT_FIELD(u16_t _ttl_proto);
+ /* checksum */
+ PACK_STRUCT_FIELD(u16_t _chksum);
+ /* source and destination IP addresses */
+ PACK_STRUCT_FIELD(struct ip_addr src);
+ PACK_STRUCT_FIELD(struct ip_addr dest);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#define IPH_V(hdr) (ntohs((hdr)->_v_hl_tos) >> 12)
+#define IPH_HL(hdr) ((ntohs((hdr)->_v_hl_tos) >> 8) & 0x0f)
+#define IPH_TOS(hdr) (ntohs((hdr)->_v_hl_tos) & 0xff)
+#define IPH_LEN(hdr) ((hdr)->_len)
+#define IPH_ID(hdr) ((hdr)->_id)
+#define IPH_OFFSET(hdr) ((hdr)->_offset)
+#define IPH_TTL(hdr) (ntohs((hdr)->_ttl_proto) >> 8)
+#define IPH_PROTO(hdr) (ntohs((hdr)->_ttl_proto) & 0xff)
+#define IPH_CHKSUM(hdr) ((hdr)->_chksum)
+
+#define IPH_VHLTOS_SET(hdr, v, hl, tos) (hdr)->_v_hl_tos = (htons(((v) << 12) | ((hl) << 8) | (tos)))
+#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len)
+#define IPH_ID_SET(hdr, id) (hdr)->_id = (id)
+#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off)
+#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl_proto = (htons(IPH_PROTO(hdr) | ((u16_t)(ttl) << 8)))
+#define IPH_PROTO_SET(hdr, proto) (hdr)->_ttl_proto = (htons((proto) | (IPH_TTL(hdr) << 8)))
+#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)
+
+#define ip_init() /* Compatibility define, not init needed. */
+struct netif *ip_route(struct ip_addr *dest);
+err_t ip_input(struct pbuf *p, struct netif *inp);
+err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
+ u8_t ttl, u8_t tos, u8_t proto);
+err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
+ u8_t ttl, u8_t tos, u8_t proto,
+ struct netif *netif);
+#if LWIP_NETIF_HWADDRHINT
+err_t ip_output_hinted(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
+ u8_t ttl, u8_t tos, u8_t proto, u8_t *addr_hint);
+#endif /* LWIP_NETIF_HWADDRHINT */
+#if IP_OPTIONS_SEND
+err_t ip_output_if_opt(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
+ u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
+ u16_t optlen);
+#endif /* IP_OPTIONS_SEND */
+struct netif *ip_current_netif(void);
+const struct ip_hdr *ip_current_header(void);
+#if IP_DEBUG
+void ip_debug_print(struct pbuf *p);
+#else
+#define ip_debug_print(p)
+#endif /* IP_DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_H__ */
+
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h
new file mode 100644
index 000000000..f2e4c2233
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_IP_ADDR_H__
+#define __LWIP_IP_ADDR_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/inet.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_addr {
+ PACK_STRUCT_FIELD(u32_t addr);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+/*
+ * struct ipaddr2 is used in the definition of the ARP packet format in
+ * order to support compilers that don't have structure packing.
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_addr2 {
+ PACK_STRUCT_FIELD(u16_t addrw[2]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+struct netif;
+
+extern const struct ip_addr ip_addr_any;
+extern const struct ip_addr ip_addr_broadcast;
+
+/** IP_ADDR_ can be used as a fixed IP address
+ * for the wildcard and the broadcast address
+ */
+#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
+#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
+
+/* Definitions of the bits in an Internet address integer.
+
+ On subnets, host and network parts are found according to
+ the subnet mask, not these masks. */
+
+#define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
+#define IN_CLASSA_NET 0xff000000
+#define IN_CLASSA_NSHIFT 24
+#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
+#define IN_CLASSA_MAX 128
+
+#define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
+#define IN_CLASSB_NET 0xffff0000
+#define IN_CLASSB_NSHIFT 16
+#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
+#define IN_CLASSB_MAX 65536
+
+#define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
+#define IN_CLASSC_NET 0xffffff00
+#define IN_CLASSC_NSHIFT 8
+#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
+
+#define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
+#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
+#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
+#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
+#define IN_MULTICAST(a) IN_CLASSD(a)
+
+#define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
+#define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
+
+#define IN_LOOPBACKNET 127 /* official! */
+
+#define IP4_ADDR(ipaddr, a,b,c,d) \
+ (ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \
+ ((u32_t)((b) & 0xff) << 16) | \
+ ((u32_t)((c) & 0xff) << 8) | \
+ (u32_t)((d) & 0xff))
+
+#define ip_addr_set(dest, src) (dest)->addr = \
+ ((src) == NULL? 0:\
+ (src)->addr)
+/**
+ * Determine if two address are on the same network.
+ *
+ * @arg addr1 IP address 1
+ * @arg addr2 IP address 2
+ * @arg mask network identifier mask
+ * @return !0 if the network identifiers of both address match
+ */
+#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
+ (mask)->addr) == \
+ ((addr2)->addr & \
+ (mask)->addr))
+#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
+
+#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0)
+
+u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *);
+
+#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL))
+
+#define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL))
+
+#define ip_addr_debug_print(debug, ipaddr) \
+ LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
+ ipaddr != NULL ? \
+ (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \
+ ipaddr != NULL ? \
+ (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \
+ ipaddr != NULL ? \
+ (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \
+ ipaddr != NULL ? \
+ (u16_t)ntohl((ipaddr)->addr) & 0xff : 0))
+
+/* These are cast to u16_t, with the intent that they are often arguments
+ * to printf using the U16_F format from cc.h. */
+#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
+#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
+#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
+#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_ADDR_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h
new file mode 100644
index 000000000..380e604dc
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Jani Monoses <jani@iv.ro>
+ *
+ */
+
+#ifndef __LWIP_IP_FRAG_H__
+#define __LWIP_IP_FRAG_H__
+
+#include "lwip/opt.h"
+#include "lwip/err.h"
+#include "lwip/pbuf.h"
+#include "lwip/netif.h"
+#include "lwip/ip_addr.h"
+#include "lwip/ip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if IP_REASSEMBLY
+/* The IP reassembly timer interval in milliseconds. */
+#define IP_TMR_INTERVAL 1000
+
+/* IP reassembly helper struct.
+ * This is exported because memp needs to know the size.
+ */
+struct ip_reassdata {
+ struct ip_reassdata *next;
+ struct pbuf *p;
+ struct ip_hdr iphdr;
+ u16_t datagram_len;
+ u8_t flags;
+ u8_t timer;
+};
+
+void ip_reass_init(void);
+void ip_reass_tmr(void);
+struct pbuf * ip_reass(struct pbuf *p);
+#endif /* IP_REASSEMBLY */
+
+#if IP_FRAG
+err_t ip_frag(struct pbuf *p, struct netif *netif, struct ip_addr *dest);
+#endif /* IP_FRAG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_FRAG_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h
new file mode 100644
index 000000000..87e9ffd96
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ICMP_H__
+#define __LWIP_ICMP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ICMP6_DUR 1
+#define ICMP6_TE 3
+#define ICMP6_ECHO 128 /* echo */
+#define ICMP6_ER 129 /* echo reply */
+
+
+enum icmp_dur_type {
+ ICMP_DUR_NET = 0, /* net unreachable */
+ ICMP_DUR_HOST = 1, /* host unreachable */
+ ICMP_DUR_PROTO = 2, /* protocol unreachable */
+ ICMP_DUR_PORT = 3, /* port unreachable */
+ ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
+ ICMP_DUR_SR = 5 /* source route failed */
+};
+
+enum icmp_te_type {
+ ICMP_TE_TTL = 0, /* time to live exceeded in transit */
+ ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
+};
+
+void icmp_input(struct pbuf *p, struct netif *inp);
+
+void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
+void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
+
+struct icmp_echo_hdr {
+ u8_t type;
+ u8_t icode;
+ u16_t chksum;
+ u16_t id;
+ u16_t seqno;
+};
+
+struct icmp_dur_hdr {
+ u8_t type;
+ u8_t icode;
+ u16_t chksum;
+ u32_t unused;
+};
+
+struct icmp_te_hdr {
+ u8_t type;
+ u8_t icode;
+ u16_t chksum;
+ u32_t unused;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_ICMP */
+
+#endif /* __LWIP_ICMP_H__ */
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h
new file mode 100644
index 000000000..de1a0b636
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INET_H__
+#define __LWIP_INET_H__
+
+#include "lwip/opt.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+u16_t inet_chksum(void *data, u16_t len);
+u16_t inet_chksum_pbuf(struct pbuf *p);
+u16_t inet_chksum_pseudo(struct pbuf *p,
+ struct ip_addr *src, struct ip_addr *dest,
+ u8_t proto, u32_t proto_len);
+
+u32_t inet_addr(const char *cp);
+s8_t inet_aton(const char *cp, struct in_addr *addr);
+
+#ifndef _MACHINE_ENDIAN_H_
+#ifndef _NETINET_IN_H
+#ifndef _LINUX_BYTEORDER_GENERIC_H
+u16_t htons(u16_t n);
+u16_t ntohs(u16_t n);
+u32_t htonl(u32_t n);
+u32_t ntohl(u32_t n);
+#endif /* _LINUX_BYTEORDER_GENERIC_H */
+#endif /* _NETINET_IN_H */
+#endif /* _MACHINE_ENDIAN_H_ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INET_H__ */
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h
new file mode 100644
index 000000000..a01cfc65b
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_IP_H__
+#define __LWIP_IP_H__
+
+#include "lwip/opt.h"
+#include "lwip/def.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define IP_HLEN 40
+
+#define IP_PROTO_ICMP 58
+#define IP_PROTO_UDP 17
+#define IP_PROTO_UDPLITE 136
+#define IP_PROTO_TCP 6
+
+/* This is passed as the destination address to ip_output_if (not
+ to ip_output), meaning that an IP header already is constructed
+ in the pbuf. This is used when TCP retransmits. */
+#ifdef IP_HDRINCL
+#undef IP_HDRINCL
+#endif /* IP_HDRINCL */
+#define IP_HDRINCL NULL
+
+#if LWIP_NETIF_HWADDRHINT
+#define IP_PCB_ADDRHINT ;u8_t addr_hint
+#else
+#define IP_PCB_ADDRHINT
+#endif /* LWIP_NETIF_HWADDRHINT */
+
+/* This is the common part of all PCB types. It needs to be at the
+ beginning of a PCB type definition. It is located here so that
+ changes to this common part are made in one location instead of
+ having to change all PCB structs. */
+#define IP_PCB struct ip_addr local_ip; \
+ struct ip_addr remote_ip; \
+ /* Socket options */ \
+ u16_t so_options; \
+ /* Type Of Service */ \
+ u8_t tos; \
+ /* Time To Live */ \
+ u8_t ttl; \
+ /* link layer address resolution hint */ \
+ IP_PCB_ADDRHINT
+
+
+/* The IPv6 header. */
+struct ip_hdr {
+#if BYTE_ORDER == LITTLE_ENDIAN
+ u8_t tclass1:4, v:4;
+ u8_t flow1:4, tclass2:4;
+#else
+ u8_t v:4, tclass1:4;
+ u8_t tclass2:8, flow1:4;
+#endif
+ u16_t flow2;
+ u16_t len; /* payload length */
+ u8_t nexthdr; /* next header */
+ u8_t hoplim; /* hop limit (TTL) */
+ struct ip_addr src, dest; /* source and destination IP addresses */
+};
+
+#define IPH_PROTO(hdr) (iphdr->nexthdr)
+
+void ip_init(void);
+
+#include "lwip/netif.h"
+
+struct netif *ip_route(struct ip_addr *dest);
+
+void ip_input(struct pbuf *p, struct netif *inp);
+
+/* source and destination addresses in network byte order, please */
+err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
+ u8_t ttl, u8_t proto);
+
+err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
+ u8_t ttl, u8_t proto,
+ struct netif *netif);
+
+#define ip_current_netif() NULL
+#define ip_current_header() NULL
+
+#if IP_DEBUG
+void ip_debug_print(struct pbuf *p);
+#endif /* IP_DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_H__ */
+
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h
new file mode 100644
index 000000000..b2d8ae566
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_IP_ADDR_H__
+#define __LWIP_IP_ADDR_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define IP_ADDR_ANY 0
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+ struct ip_addr {
+ PACK_STRUCT_FIELD(u32_t addr[4]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+/*
+ * struct ipaddr2 is used in the definition of the ARP packet format in
+ * order to support compilers that don't have structure packing.
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip_addr2 {
+ PACK_STRUCT_FIELD(u16_t addrw[2]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#define IP6_ADDR(ipaddr, a,b,c,d,e,f,g,h) do { (ipaddr)->addr[0] = htonl((u32_t)((a & 0xffff) << 16) | (b & 0xffff)); \
+ (ipaddr)->addr[1] = htonl(((c & 0xffff) << 16) | (d & 0xffff)); \
+ (ipaddr)->addr[2] = htonl(((e & 0xffff) << 16) | (f & 0xffff)); \
+ (ipaddr)->addr[3] = htonl(((g & 0xffff) << 16) | (h & 0xffff)); } while(0)
+
+u8_t ip_addr_netcmp(struct ip_addr *addr1, struct ip_addr *addr2,
+ struct ip_addr *mask);
+u8_t ip_addr_cmp(struct ip_addr *addr1, struct ip_addr *addr2);
+void ip_addr_set(struct ip_addr *dest, struct ip_addr *src);
+u8_t ip_addr_isany(struct ip_addr *addr);
+
+#define ip_addr_debug_print(debug, ipaddr) \
+ LWIP_DEBUGF(debug, ("%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F":%"X32_F"\n", \
+ (ntohl(ipaddr->addr[0]) >> 16) & 0xffff, \
+ ntohl(ipaddr->addr[0]) & 0xffff, \
+ (ntohl(ipaddr->addr[1]) >> 16) & 0xffff, \
+ ntohl(ipaddr->addr[1]) & 0xffff, \
+ (ntohl(ipaddr->addr[2]) >> 16) & 0xffff, \
+ ntohl(ipaddr->addr[2]) & 0xffff, \
+ (ntohl(ipaddr->addr[3]) >> 16) & 0xffff, \
+ ntohl(ipaddr->addr[3]) & 0xffff));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_IP_ADDR_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api.h
new file mode 100644
index 000000000..f6b1f7434
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api.h
@@ -0,0 +1,222 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_API_H__
+#define __LWIP_API_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/netbuf.h"
+#include "lwip/sys.h"
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Throughout this file, IP addresses and port numbers are expected to be in
+ * the same byte order as in the corresponding pcb.
+ */
+
+/* Flags for netconn_write */
+#define NETCONN_NOFLAG 0x00
+#define NETCONN_NOCOPY 0x00 /* Only for source code compatibility */
+#define NETCONN_COPY 0x01
+#define NETCONN_MORE 0x02
+
+/* Helpers to process several netconn_types by the same code */
+#define NETCONNTYPE_GROUP(t) (t&0xF0)
+#define NETCONNTYPE_DATAGRAM(t) (t&0xE0)
+
+enum netconn_type {
+ NETCONN_INVALID = 0,
+ /* NETCONN_TCP Group */
+ NETCONN_TCP = 0x10,
+ /* NETCONN_UDP Group */
+ NETCONN_UDP = 0x20,
+ NETCONN_UDPLITE = 0x21,
+ NETCONN_UDPNOCHKSUM= 0x22,
+ /* NETCONN_RAW Group */
+ NETCONN_RAW = 0x40
+};
+
+enum netconn_state {
+ NETCONN_NONE,
+ NETCONN_WRITE,
+ NETCONN_LISTEN,
+ NETCONN_CONNECT,
+ NETCONN_CLOSE
+};
+
+enum netconn_evt {
+ NETCONN_EVT_RCVPLUS,
+ NETCONN_EVT_RCVMINUS,
+ NETCONN_EVT_SENDPLUS,
+ NETCONN_EVT_SENDMINUS
+};
+
+#if LWIP_IGMP
+enum netconn_igmp {
+ NETCONN_JOIN,
+ NETCONN_LEAVE
+};
+#endif /* LWIP_IGMP */
+
+/* forward-declare some structs to avoid to include their headers */
+struct ip_pcb;
+struct tcp_pcb;
+struct udp_pcb;
+struct raw_pcb;
+struct netconn;
+
+/** A callback prototype to inform about events for a netconn */
+typedef void (* netconn_callback)(struct netconn *, enum netconn_evt, u16_t len);
+
+/** A netconn descriptor */
+struct netconn {
+ /** type of the netconn (TCP, UDP or RAW) */
+ enum netconn_type type;
+ /** current state of the netconn */
+ enum netconn_state state;
+ /** the lwIP internal protocol control block */
+ union {
+ struct ip_pcb *ip;
+ struct tcp_pcb *tcp;
+ struct udp_pcb *udp;
+ struct raw_pcb *raw;
+ } pcb;
+ /** the last error this netconn had */
+ err_t err;
+ /** sem that is used to synchroneously execute functions in the core context */
+ sys_sem_t op_completed;
+ /** mbox where received packets are stored until they are fetched
+ by the netconn application thread (can grow quite big) */
+ sys_mbox_t recvmbox;
+ /** mbox where new connections are stored until processed
+ by the application thread */
+ sys_mbox_t acceptmbox;
+ /** only used for socket layer */
+ int socket;
+#if LWIP_SO_RCVTIMEO
+ /** timeout to wait for new data to be received
+ (or connections to arrive for listening netconns) */
+ int recv_timeout;
+#endif /* LWIP_SO_RCVTIMEO */
+#if LWIP_SO_RCVBUF
+ /** maximum amount of bytes queued in recvmbox */
+ int recv_bufsize;
+#endif /* LWIP_SO_RCVBUF */
+ s16_t recv_avail;
+#if LWIP_TCP
+ /** TCP: when data passed to netconn_write doesn't fit into the send buffer,
+ this temporarily stores the message. */
+ struct api_msg_msg *write_msg;
+ /** TCP: when data passed to netconn_write doesn't fit into the send buffer,
+ this temporarily stores how much is already sent. */
+ size_t write_offset;
+#if LWIP_TCPIP_CORE_LOCKING
+ /** TCP: when data passed to netconn_write doesn't fit into the send buffer,
+ this temporarily stores whether to wake up the original application task
+ if data couldn't be sent in the first try. */
+ u8_t write_delayed;
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+#endif /* LWIP_TCP */
+ /** A callback function that is informed about events for this netconn */
+ netconn_callback callback;
+};
+
+/* Register an Network connection event */
+#define API_EVENT(c,e,l) if (c->callback) { \
+ (*c->callback)(c, e, l); \
+ }
+
+/* Network connection functions: */
+#define netconn_new(t) netconn_new_with_proto_and_callback(t, 0, NULL)
+#define netconn_new_with_callback(t, c) netconn_new_with_proto_and_callback(t, 0, c)
+struct
+netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto,
+ netconn_callback callback);
+err_t netconn_delete (struct netconn *conn);
+/** Get the type of a netconn (as enum netconn_type). */
+#define netconn_type(conn) (conn->type)
+
+err_t netconn_getaddr (struct netconn *conn,
+ struct ip_addr *addr,
+ u16_t *port,
+ u8_t local);
+#define netconn_peer(c,i,p) netconn_getaddr(c,i,p,0)
+#define netconn_addr(c,i,p) netconn_getaddr(c,i,p,1)
+
+err_t netconn_bind (struct netconn *conn,
+ struct ip_addr *addr,
+ u16_t port);
+err_t netconn_connect (struct netconn *conn,
+ struct ip_addr *addr,
+ u16_t port);
+err_t netconn_disconnect (struct netconn *conn);
+err_t netconn_listen_with_backlog(struct netconn *conn, u8_t backlog);
+#define netconn_listen(conn) netconn_listen_with_backlog(conn, TCP_DEFAULT_LISTEN_BACKLOG)
+struct netconn * netconn_accept (struct netconn *conn);
+struct netbuf * netconn_recv (struct netconn *conn);
+err_t netconn_sendto (struct netconn *conn,
+ struct netbuf *buf, struct ip_addr *addr, u16_t port);
+err_t netconn_send (struct netconn *conn,
+ struct netbuf *buf);
+err_t netconn_write (struct netconn *conn,
+ const void *dataptr, size_t size,
+ u8_t apiflags);
+err_t netconn_close (struct netconn *conn);
+
+#if LWIP_IGMP
+err_t netconn_join_leave_group (struct netconn *conn,
+ struct ip_addr *multiaddr,
+ struct ip_addr *interface,
+ enum netconn_igmp join_or_leave);
+#endif /* LWIP_IGMP */
+#if LWIP_DNS
+err_t netconn_gethostbyname(const char *name, struct ip_addr *addr);
+#endif /* LWIP_DNS */
+
+#define netconn_err(conn) ((conn)->err)
+#define netconn_recv_bufsize(conn) ((conn)->recv_bufsize)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_NETCONN */
+
+#endif /* __LWIP_API_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api_msg.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api_msg.h
new file mode 100644
index 000000000..4272d77cc
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/api_msg.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_API_MSG_H__
+#define __LWIP_API_MSG_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/ip_addr.h"
+#include "lwip/err.h"
+#include "lwip/sys.h"
+#include "lwip/igmp.h"
+#include "lwip/api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* IP addresses and port numbers are expected to be in
+ * the same byte order as in the corresponding pcb.
+ */
+/** This struct includes everything that is necessary to execute a function
+ for a netconn in another thread context (mainly used to process netconns
+ in the tcpip_thread context to be thread safe). */
+struct api_msg_msg {
+ /** The netconn which to process - always needed: it includes the semaphore
+ which is used to block the application thread until the function finished. */
+ struct netconn *conn;
+ /** Depending on the executed function, one of these union members is used */
+ union {
+ /** used for do_send */
+ struct netbuf *b;
+ /** used for do_newconn */
+ struct {
+ u8_t proto;
+ } n;
+ /** used for do_bind and do_connect */
+ struct {
+ struct ip_addr *ipaddr;
+ u16_t port;
+ } bc;
+ /** used for do_getaddr */
+ struct {
+ struct ip_addr *ipaddr;
+ u16_t *port;
+ u8_t local;
+ } ad;
+ /** used for do_write */
+ struct {
+ const void *dataptr;
+ size_t len;
+ u8_t apiflags;
+ } w;
+ /** used ofr do_recv */
+ struct {
+ u16_t len;
+ } r;
+#if LWIP_IGMP
+ /** used for do_join_leave_group */
+ struct {
+ struct ip_addr *multiaddr;
+ struct ip_addr *interface;
+ enum netconn_igmp join_or_leave;
+ } jl;
+#endif /* LWIP_IGMP */
+#if TCP_LISTEN_BACKLOG
+ struct {
+ u8_t backlog;
+ } lb;
+#endif /* TCP_LISTEN_BACKLOG */
+ } msg;
+};
+
+/** This struct contains a function to execute in another thread context and
+ a struct api_msg_msg that serves as an argument for this function.
+ This is passed to tcpip_apimsg to execute functions in tcpip_thread context. */
+struct api_msg {
+ /** function to execute in tcpip_thread context */
+ void (* function)(struct api_msg_msg *msg);
+ /** arguments for this function */
+ struct api_msg_msg msg;
+};
+
+#if LWIP_DNS
+/** As do_gethostbyname requires more arguments but doesn't require a netconn,
+ it has its own struct (to avoid struct api_msg getting bigger than necessary).
+ do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg
+ (see netconn_gethostbyname). */
+struct dns_api_msg {
+ /** Hostname to query or dotted IP address string */
+ const char *name;
+ /** Rhe resolved address is stored here */
+ struct ip_addr *addr;
+ /** This semaphore is posted when the name is resolved, the application thread
+ should wait on it. */
+ sys_sem_t sem;
+ /** Errors are given back here */
+ err_t *err;
+};
+#endif /* LWIP_DNS */
+
+void do_newconn ( struct api_msg_msg *msg);
+void do_delconn ( struct api_msg_msg *msg);
+void do_bind ( struct api_msg_msg *msg);
+void do_connect ( struct api_msg_msg *msg);
+void do_disconnect ( struct api_msg_msg *msg);
+void do_listen ( struct api_msg_msg *msg);
+void do_send ( struct api_msg_msg *msg);
+void do_recv ( struct api_msg_msg *msg);
+void do_write ( struct api_msg_msg *msg);
+void do_getaddr ( struct api_msg_msg *msg);
+void do_close ( struct api_msg_msg *msg);
+#if LWIP_IGMP
+void do_join_leave_group( struct api_msg_msg *msg);
+#endif /* LWIP_IGMP */
+
+#if LWIP_DNS
+void do_gethostbyname(void *arg);
+#endif /* LWIP_DNS */
+
+struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback);
+void netconn_free(struct netconn *conn);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_NETCONN */
+
+#endif /* __LWIP_API_MSG_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/arch.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/arch.h
new file mode 100644
index 000000000..3a5a0e4f2
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/arch.h
@@ -0,0 +1,233 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ARCH_H__
+#define __LWIP_ARCH_H__
+
+#ifndef LITTLE_ENDIAN
+#define LITTLE_ENDIAN 1234
+#endif
+
+#ifndef BIG_ENDIAN
+#define BIG_ENDIAN 4321
+#endif
+
+#include "arch/cc.h"
+
+/** Temporary: define format string for size_t if not defined in cc.h */
+#ifndef SZT_F
+#define SZT_F U32_F
+#endif /* SZT_F */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef PACK_STRUCT_BEGIN
+#define PACK_STRUCT_BEGIN
+#endif /* PACK_STRUCT_BEGIN */
+
+#ifndef PACK_STRUCT_END
+#define PACK_STRUCT_END
+#endif /* PACK_STRUCT_END */
+
+#ifndef PACK_STRUCT_FIELD
+#define PACK_STRUCT_FIELD(x) x
+#endif /* PACK_STRUCT_FIELD */
+
+
+#ifndef LWIP_UNUSED_ARG
+#define LWIP_UNUSED_ARG(x) (void)x
+#endif /* LWIP_UNUSED_ARG */
+
+
+#ifdef LWIP_PROVIDE_ERRNO
+
+#define EPERM 1 /* Operation not permitted */
+#define ENOENT 2 /* No such file or directory */
+#define ESRCH 3 /* No such process */
+#define EINTR 4 /* Interrupted system call */
+#define EIO 5 /* I/O error */
+#define ENXIO 6 /* No such device or address */
+#define E2BIG 7 /* Arg list too long */
+#define ENOEXEC 8 /* Exec format error */
+#define EBADF 9 /* Bad file number */
+#define ECHILD 10 /* No child processes */
+#define EAGAIN 11 /* Try again */
+#define ENOMEM 12 /* Out of memory */
+#define EACCES 13 /* Permission denied */
+#define EFAULT 14 /* Bad address */
+#define ENOTBLK 15 /* Block device required */
+#define EBUSY 16 /* Device or resource busy */
+#define EEXIST 17 /* File exists */
+#define EXDEV 18 /* Cross-device link */
+#define ENODEV 19 /* No such device */
+#define ENOTDIR 20 /* Not a directory */
+#define EISDIR 21 /* Is a directory */
+#define EINVAL 22 /* Invalid argument */
+#define ENFILE 23 /* File table overflow */
+#define EMFILE 24 /* Too many open files */
+#define ENOTTY 25 /* Not a typewriter */
+#define ETXTBSY 26 /* Text file busy */
+#define EFBIG 27 /* File too large */
+#define ENOSPC 28 /* No space left on device */
+#define ESPIPE 29 /* Illegal seek */
+#define EROFS 30 /* Read-only file system */
+#define EMLINK 31 /* Too many links */
+#define EPIPE 32 /* Broken pipe */
+#define EDOM 33 /* Math argument out of domain of func */
+#define ERANGE 34 /* Math result not representable */
+#define EDEADLK 35 /* Resource deadlock would occur */
+#define ENAMETOOLONG 36 /* File name too long */
+#define ENOLCK 37 /* No record locks available */
+#define ENOSYS 38 /* Function not implemented */
+#define ENOTEMPTY 39 /* Directory not empty */
+#define ELOOP 40 /* Too many symbolic links encountered */
+#define EWOULDBLOCK EAGAIN /* Operation would block */
+#define ENOMSG 42 /* No message of desired type */
+#define EIDRM 43 /* Identifier removed */
+#define ECHRNG 44 /* Channel number out of range */
+#define EL2NSYNC 45 /* Level 2 not synchronized */
+#define EL3HLT 46 /* Level 3 halted */
+#define EL3RST 47 /* Level 3 reset */
+#define ELNRNG 48 /* Link number out of range */
+#define EUNATCH 49 /* Protocol driver not attached */
+#define ENOCSI 50 /* No CSI structure available */
+#define EL2HLT 51 /* Level 2 halted */
+#define EBADE 52 /* Invalid exchange */
+#define EBADR 53 /* Invalid request descriptor */
+#define EXFULL 54 /* Exchange full */
+#define ENOANO 55 /* No anode */
+#define EBADRQC 56 /* Invalid request code */
+#define EBADSLT 57 /* Invalid slot */
+
+#define EDEADLOCK EDEADLK
+
+#define EBFONT 59 /* Bad font file format */
+#define ENOSTR 60 /* Device not a stream */
+#define ENODATA 61 /* No data available */
+#define ETIME 62 /* Timer expired */
+#define ENOSR 63 /* Out of streams resources */
+#define ENONET 64 /* Machine is not on the network */
+#define ENOPKG 65 /* Package not installed */
+#define EREMOTE 66 /* Object is remote */
+#define ENOLINK 67 /* Link has been severed */
+#define EADV 68 /* Advertise error */
+#define ESRMNT 69 /* Srmount error */
+#define ECOMM 70 /* Communication error on send */
+#define EPROTO 71 /* Protocol error */
+#define EMULTIHOP 72 /* Multihop attempted */
+#define EDOTDOT 73 /* RFS specific error */
+#define EBADMSG 74 /* Not a data message */
+#define EOVERFLOW 75 /* Value too large for defined data type */
+#define ENOTUNIQ 76 /* Name not unique on network */
+#define EBADFD 77 /* File descriptor in bad state */
+#define EREMCHG 78 /* Remote address changed */
+#define ELIBACC 79 /* Can not access a needed shared library */
+#define ELIBBAD 80 /* Accessing a corrupted shared library */
+#define ELIBSCN 81 /* .lib section in a.out corrupted */
+#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
+#define ELIBEXEC 83 /* Cannot exec a shared library directly */
+#define EILSEQ 84 /* Illegal byte sequence */
+#define ERESTART 85 /* Interrupted system call should be restarted */
+#define ESTRPIPE 86 /* Streams pipe error */
+#define EUSERS 87 /* Too many users */
+#define ENOTSOCK 88 /* Socket operation on non-socket */
+#define EDESTADDRREQ 89 /* Destination address required */
+#define EMSGSIZE 90 /* Message too long */
+#define EPROTOTYPE 91 /* Protocol wrong type for socket */
+#define ENOPROTOOPT 92 /* Protocol not available */
+#define EPROTONOSUPPORT 93 /* Protocol not supported */
+#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
+#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
+#define EPFNOSUPPORT 96 /* Protocol family not supported */
+#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
+#define EADDRINUSE 98 /* Address already in use */
+#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
+#define ENETDOWN 100 /* Network is down */
+#define ENETUNREACH 101 /* Network is unreachable */
+#define ENETRESET 102 /* Network dropped connection because of reset */
+#define ECONNABORTED 103 /* Software caused connection abort */
+#define ECONNRESET 104 /* Connection reset by peer */
+#define ENOBUFS 105 /* No buffer space available */
+#define EISCONN 106 /* Transport endpoint is already connected */
+#define ENOTCONN 107 /* Transport endpoint is not connected */
+#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
+#define ETOOMANYREFS 109 /* Too many references: cannot splice */
+#define ETIMEDOUT 110 /* Connection timed out */
+#define ECONNREFUSED 111 /* Connection refused */
+#define EHOSTDOWN 112 /* Host is down */
+#define EHOSTUNREACH 113 /* No route to host */
+#define EALREADY 114 /* Operation already in progress */
+#define EINPROGRESS 115 /* Operation now in progress */
+#define ESTALE 116 /* Stale NFS file handle */
+#define EUCLEAN 117 /* Structure needs cleaning */
+#define ENOTNAM 118 /* Not a XENIX named type file */
+#define ENAVAIL 119 /* No XENIX semaphores available */
+#define EISNAM 120 /* Is a named type file */
+#define EREMOTEIO 121 /* Remote I/O error */
+#define EDQUOT 122 /* Quota exceeded */
+
+#define ENOMEDIUM 123 /* No medium found */
+#define EMEDIUMTYPE 124 /* Wrong medium type */
+
+
+#define ENSROK 0 /* DNS server returned answer with no data */
+#define ENSRNODATA 160 /* DNS server returned answer with no data */
+#define ENSRFORMERR 161 /* DNS server claims query was misformatted */
+#define ENSRSERVFAIL 162 /* DNS server returned general failure */
+#define ENSRNOTFOUND 163 /* Domain name not found */
+#define ENSRNOTIMP 164 /* DNS server does not implement requested operation */
+#define ENSRREFUSED 165 /* DNS server refused query */
+#define ENSRBADQUERY 166 /* Misformatted DNS query */
+#define ENSRBADNAME 167 /* Misformatted domain name */
+#define ENSRBADFAMILY 168 /* Unsupported address family */
+#define ENSRBADRESP 169 /* Misformatted DNS reply */
+#define ENSRCONNREFUSED 170 /* Could not contact DNS servers */
+#define ENSRTIMEOUT 171 /* Timeout while contacting DNS servers */
+#define ENSROF 172 /* End of file */
+#define ENSRFILE 173 /* Error reading file */
+#define ENSRNOMEM 174 /* Out of memory */
+#define ENSRDESTRUCTION 175 /* Application terminated lookup */
+#define ENSRQUERYDOMAINTOOLONG 176 /* Domain name is too long */
+#define ENSRCNAMELOOP 177 /* Domain name is too long */
+
+#ifndef errno
+extern int errno;
+#endif
+
+#endif /* LWIP_PROVIDE_ERRNO */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_ARCH_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/debug.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/debug.h
new file mode 100644
index 000000000..d5c4e4747
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/debug.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_DEBUG_H__
+#define __LWIP_DEBUG_H__
+
+#include "lwip/arch.h"
+
+/** lower two bits indicate debug level
+ * - 0 off
+ * - 1 warning
+ * - 2 serious
+ * - 3 severe
+ */
+#define LWIP_DBG_LEVEL_OFF 0x00
+#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
+#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
+#define LWIP_DBG_LEVEL_SEVERE 0x03
+#define LWIP_DBG_MASK_LEVEL 0x03
+
+/** flag for LWIP_DEBUGF to enable that debug message */
+#define LWIP_DBG_ON 0x80U
+/** flag for LWIP_DEBUGF to disable that debug message */
+#define LWIP_DBG_OFF 0x00U
+
+/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
+#define LWIP_DBG_TRACE 0x40U
+/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
+#define LWIP_DBG_STATE 0x20U
+/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
+#define LWIP_DBG_FRESH 0x10U
+/** flag for LWIP_DEBUGF to halt after printing this debug message */
+#define LWIP_DBG_HALT 0x08U
+
+#ifndef LWIP_NOASSERT
+#define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \
+ LWIP_PLATFORM_ASSERT(message); } while(0)
+#else /* LWIP_NOASSERT */
+#define LWIP_ASSERT(message, assertion)
+#endif /* LWIP_NOASSERT */
+
+/** if "expression" isn't true, then print "message" and execute "handler" expression */
+#ifndef LWIP_ERROR
+#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
+ LWIP_PLATFORM_ASSERT(message); handler;}} while(0)
+#endif /* LWIP_ERROR */
+
+#ifdef LWIP_DEBUG
+/** print debug message only if debug message type is enabled...
+ * AND is of correct type AND is at least LWIP_DBG_LEVEL
+ */
+#define LWIP_DEBUGF(debug, message) do { \
+ if ( \
+ ((debug) & LWIP_DBG_ON) && \
+ ((debug) & LWIP_DBG_TYPES_ON) && \
+ ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
+ LWIP_PLATFORM_DIAG(message); \
+ if ((debug) & LWIP_DBG_HALT) { \
+ while(1); \
+ } \
+ } \
+ } while(0)
+
+#else /* LWIP_DEBUG */
+#define LWIP_DEBUGF(debug, message)
+#endif /* LWIP_DEBUG */
+
+#endif /* __LWIP_DEBUG_H__ */
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/def.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/def.h
new file mode 100644
index 000000000..d2ed251df
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/def.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_DEF_H__
+#define __LWIP_DEF_H__
+
+/* this might define NULL already */
+#include "lwip/arch.h"
+
+#define LWIP_MAX(x , y) (((x) > (y)) ? (x) : (y))
+#define LWIP_MIN(x , y) (((x) < (y)) ? (x) : (y))
+
+#ifndef NULL
+#define NULL ((void *)0)
+#endif
+
+
+#endif /* __LWIP_DEF_H__ */
+
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dhcp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dhcp.h
new file mode 100644
index 000000000..825dba6ec
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dhcp.h
@@ -0,0 +1,246 @@
+/** @file
+ */
+
+#ifndef __LWIP_DHCP_H__
+#define __LWIP_DHCP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/netif.h"
+#include "lwip/udp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** period (in seconds) of the application calling dhcp_coarse_tmr() */
+#define DHCP_COARSE_TIMER_SECS 60
+/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
+#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
+/** period (in milliseconds) of the application calling dhcp_fine_tmr() */
+#define DHCP_FINE_TIMER_MSECS 500
+
+struct dhcp
+{
+ /** current DHCP state machine state */
+ u8_t state;
+ /** retries of current request */
+ u8_t tries;
+ /** transaction identifier of last sent request */
+ u32_t xid;
+ /** our connection to the DHCP server */
+ struct udp_pcb *pcb;
+ /** (first) pbuf of incoming msg */
+ struct pbuf *p;
+ /** incoming msg */
+ struct dhcp_msg *msg_in;
+ /** incoming msg options */
+ struct dhcp_msg *options_in;
+ /** ingoing msg options length */
+ u16_t options_in_len;
+
+ struct pbuf *p_out; /* pbuf of outcoming msg */
+ struct dhcp_msg *msg_out; /* outgoing msg */
+ u16_t options_out_len; /* outgoing msg options length */
+ u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
+ u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
+ u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
+ struct ip_addr server_ip_addr; /* dhcp server address that offered this lease */
+ struct ip_addr offered_ip_addr;
+ struct ip_addr offered_sn_mask;
+ struct ip_addr offered_gw_addr;
+ struct ip_addr offered_bc_addr;
+#define DHCP_MAX_DNS 2
+ u32_t dns_count; /* actual number of DNS servers obtained */
+ struct ip_addr offered_dns_addr[DHCP_MAX_DNS]; /* DNS server addresses */
+
+ u32_t offered_t0_lease; /* lease period (in seconds) */
+ u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */
+ u32_t offered_t2_rebind; /* recommended rebind time (usually 66% of lease period) */
+#if LWIP_DHCP_AUTOIP_COOP
+ u8_t autoip_coop_state;
+#endif
+/** Patch #1308
+ * TODO: See dhcp.c "TODO"s
+ */
+#if 0
+ struct ip_addr offered_si_addr;
+ u8_t *boot_file_name;
+#endif
+};
+
+/* MUST be compiled with "pack structs" or equivalent! */
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** minimum set of fields of any DHCP message */
+struct dhcp_msg
+{
+ PACK_STRUCT_FIELD(u8_t op);
+ PACK_STRUCT_FIELD(u8_t htype);
+ PACK_STRUCT_FIELD(u8_t hlen);
+ PACK_STRUCT_FIELD(u8_t hops);
+ PACK_STRUCT_FIELD(u32_t xid);
+ PACK_STRUCT_FIELD(u16_t secs);
+ PACK_STRUCT_FIELD(u16_t flags);
+ PACK_STRUCT_FIELD(struct ip_addr ciaddr);
+ PACK_STRUCT_FIELD(struct ip_addr yiaddr);
+ PACK_STRUCT_FIELD(struct ip_addr siaddr);
+ PACK_STRUCT_FIELD(struct ip_addr giaddr);
+#define DHCP_CHADDR_LEN 16U
+ PACK_STRUCT_FIELD(u8_t chaddr[DHCP_CHADDR_LEN]);
+#define DHCP_SNAME_LEN 64U
+ PACK_STRUCT_FIELD(u8_t sname[DHCP_SNAME_LEN]);
+#define DHCP_FILE_LEN 128U
+ PACK_STRUCT_FIELD(u8_t file[DHCP_FILE_LEN]);
+ PACK_STRUCT_FIELD(u32_t cookie);
+#define DHCP_MIN_OPTIONS_LEN 68U
+/** make sure user does not configure this too small */
+#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN))
+# undef DHCP_OPTIONS_LEN
+#endif
+/** allow this to be configured in lwipopts.h, but not too small */
+#if (!defined(DHCP_OPTIONS_LEN))
+/** set this to be sufficient for your options in outgoing DHCP msgs */
+# define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN
+#endif
+ PACK_STRUCT_FIELD(u8_t options[DHCP_OPTIONS_LEN]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+/** start DHCP configuration */
+err_t dhcp_start(struct netif *netif);
+/** enforce early lease renewal (not needed normally)*/
+err_t dhcp_renew(struct netif *netif);
+/** release the DHCP lease, usually called before dhcp_stop()*/
+err_t dhcp_release(struct netif *netif);
+/** stop DHCP configuration */
+void dhcp_stop(struct netif *netif);
+/** inform server of our manual IP address */
+void dhcp_inform(struct netif *netif);
+
+/** if enabled, check whether the offered IP address is not in use, using ARP */
+#if DHCP_DOES_ARP_CHECK
+void dhcp_arp_reply(struct netif *netif, struct ip_addr *addr);
+#endif
+
+/** to be called every minute */
+void dhcp_coarse_tmr(void);
+/** to be called every half second */
+void dhcp_fine_tmr(void);
+
+/** DHCP message item offsets and length */
+#define DHCP_MSG_OFS (UDP_DATA_OFS)
+ #define DHCP_OP_OFS (DHCP_MSG_OFS + 0)
+ #define DHCP_HTYPE_OFS (DHCP_MSG_OFS + 1)
+ #define DHCP_HLEN_OFS (DHCP_MSG_OFS + 2)
+ #define DHCP_HOPS_OFS (DHCP_MSG_OFS + 3)
+ #define DHCP_XID_OFS (DHCP_MSG_OFS + 4)
+ #define DHCP_SECS_OFS (DHCP_MSG_OFS + 8)
+ #define DHCP_FLAGS_OFS (DHCP_MSG_OFS + 10)
+ #define DHCP_CIADDR_OFS (DHCP_MSG_OFS + 12)
+ #define DHCP_YIADDR_OFS (DHCP_MSG_OFS + 16)
+ #define DHCP_SIADDR_OFS (DHCP_MSG_OFS + 20)
+ #define DHCP_GIADDR_OFS (DHCP_MSG_OFS + 24)
+ #define DHCP_CHADDR_OFS (DHCP_MSG_OFS + 28)
+ #define DHCP_SNAME_OFS (DHCP_MSG_OFS + 44)
+ #define DHCP_FILE_OFS (DHCP_MSG_OFS + 108)
+#define DHCP_MSG_LEN 236
+
+#define DHCP_COOKIE_OFS (DHCP_MSG_OFS + DHCP_MSG_LEN)
+#define DHCP_OPTIONS_OFS (DHCP_MSG_OFS + DHCP_MSG_LEN + 4)
+
+#define DHCP_CLIENT_PORT 68
+#define DHCP_SERVER_PORT 67
+
+/** DHCP client states */
+#define DHCP_REQUESTING 1
+#define DHCP_INIT 2
+#define DHCP_REBOOTING 3
+#define DHCP_REBINDING 4
+#define DHCP_RENEWING 5
+#define DHCP_SELECTING 6
+#define DHCP_INFORMING 7
+#define DHCP_CHECKING 8
+#define DHCP_PERMANENT 9
+#define DHCP_BOUND 10
+/** not yet implemented #define DHCP_RELEASING 11 */
+#define DHCP_BACKING_OFF 12
+#define DHCP_OFF 13
+
+/** AUTOIP cooperatation flags */
+#define DHCP_AUTOIP_COOP_STATE_OFF 0
+#define DHCP_AUTOIP_COOP_STATE_ON 1
+
+#define DHCP_BOOTREQUEST 1
+#define DHCP_BOOTREPLY 2
+
+#define DHCP_DISCOVER 1
+#define DHCP_OFFER 2
+#define DHCP_REQUEST 3
+#define DHCP_DECLINE 4
+#define DHCP_ACK 5
+#define DHCP_NAK 6
+#define DHCP_RELEASE 7
+#define DHCP_INFORM 8
+
+#define DHCP_HTYPE_ETH 1
+
+#define DHCP_HLEN_ETH 6
+
+#define DHCP_BROADCAST_FLAG 15
+#define DHCP_BROADCAST_MASK (1 << DHCP_FLAG_BROADCAST)
+
+/** BootP options */
+#define DHCP_OPTION_PAD 0
+#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */
+#define DHCP_OPTION_ROUTER 3
+#define DHCP_OPTION_DNS_SERVER 6
+#define DHCP_OPTION_HOSTNAME 12
+#define DHCP_OPTION_IP_TTL 23
+#define DHCP_OPTION_MTU 26
+#define DHCP_OPTION_BROADCAST 28
+#define DHCP_OPTION_TCP_TTL 37
+#define DHCP_OPTION_END 255
+
+/** DHCP options */
+#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */
+#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */
+#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */
+
+#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */
+#define DHCP_OPTION_MESSAGE_TYPE_LEN 1
+
+
+#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */
+#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */
+
+#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */
+#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2
+
+#define DHCP_OPTION_T1 58 /* T1 renewal time */
+#define DHCP_OPTION_T2 59 /* T2 rebinding time */
+#define DHCP_OPTION_US 60
+#define DHCP_OPTION_CLIENT_ID 61
+#define DHCP_OPTION_TFTP_SERVERNAME 66
+#define DHCP_OPTION_BOOTFILE 67
+
+/** possible combinations of overloading the file and sname fields with options */
+#define DHCP_OVERLOAD_NONE 0
+#define DHCP_OVERLOAD_FILE 1
+#define DHCP_OVERLOAD_SNAME 2
+#define DHCP_OVERLOAD_SNAME_FILE 3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_DHCP */
+
+#endif /*__LWIP_DHCP_H__*/
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dns.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dns.h
new file mode 100644
index 000000000..e5f4b7a3d
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/dns.h
@@ -0,0 +1,97 @@
+/**
+ * lwip DNS resolver header file.
+
+ * Author: Jim Pettinato
+ * April 2007
+
+ * ported from uIP resolv.c Copyright (c) 2002-2003, Adam Dunkels.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __LWIP_DNS_H__
+#define __LWIP_DNS_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_DNS /* don't build if not configured for use in lwipopts.h */
+
+/** DNS timer period */
+#define DNS_TMR_INTERVAL 1000
+
+/** DNS field TYPE used for "Resource Records" */
+#define DNS_RRTYPE_A 1 /* a host address */
+#define DNS_RRTYPE_NS 2 /* an authoritative name server */
+#define DNS_RRTYPE_MD 3 /* a mail destination (Obsolete - use MX) */
+#define DNS_RRTYPE_MF 4 /* a mail forwarder (Obsolete - use MX) */
+#define DNS_RRTYPE_CNAME 5 /* the canonical name for an alias */
+#define DNS_RRTYPE_SOA 6 /* marks the start of a zone of authority */
+#define DNS_RRTYPE_MB 7 /* a mailbox domain name (EXPERIMENTAL) */
+#define DNS_RRTYPE_MG 8 /* a mail group member (EXPERIMENTAL) */
+#define DNS_RRTYPE_MR 9 /* a mail rename domain name (EXPERIMENTAL) */
+#define DNS_RRTYPE_NULL 10 /* a null RR (EXPERIMENTAL) */
+#define DNS_RRTYPE_WKS 11 /* a well known service description */
+#define DNS_RRTYPE_PTR 12 /* a domain name pointer */
+#define DNS_RRTYPE_HINFO 13 /* host information */
+#define DNS_RRTYPE_MINFO 14 /* mailbox or mail list information */
+#define DNS_RRTYPE_MX 15 /* mail exchange */
+#define DNS_RRTYPE_TXT 16 /* text strings */
+
+/** DNS field CLASS used for "Resource Records" */
+#define DNS_RRCLASS_IN 1 /* the Internet */
+#define DNS_RRCLASS_CS 2 /* the CSNET class (Obsolete - used only for examples in some obsolete RFCs) */
+#define DNS_RRCLASS_CH 3 /* the CHAOS class */
+#define DNS_RRCLASS_HS 4 /* Hesiod [Dyer 87] */
+#define DNS_RRCLASS_FLUSH 0x800 /* Flush bit */
+
+/** Callback which is invoked when a hostname is found.
+ * A function of this type must be implemented by the application using the DNS resolver.
+ * @param name pointer to the name that was looked up.
+ * @param ipaddr pointer to a struct ip_addr containing the IP address of the hostname,
+ * or NULL if the name could not be found (or on any other error).
+ * @param callback_arg a user-specified callback argument passed to dns_gethostbyname
+*/
+typedef void (*dns_found_callback)(const char *name, struct ip_addr *ipaddr, void *callback_arg);
+
+
+void dns_init(void);
+
+void dns_tmr(void);
+
+void dns_setserver(u8_t numdns, struct ip_addr *dnsserver);
+
+struct ip_addr dns_getserver(u8_t numdns);
+
+err_t dns_gethostbyname(const char *hostname, struct ip_addr *addr,
+ dns_found_callback found, void *callback_arg);
+
+#if DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC
+int dns_local_removehost(const char *hostname, const struct ip_addr *addr);
+err_t dns_local_addhost(const char *hostname, const struct ip_addr *addr);
+#endif /* DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
+
+#endif /* LWIP_DNS */
+
+#endif /* __LWIP_DNS_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/err.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/err.h
new file mode 100644
index 000000000..696764454
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/err.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_ERR_H__
+#define __LWIP_ERR_H__
+
+#include "lwip/opt.h"
+#include "lwip/arch.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Define LWIP_ERR_T in cc.h if you want to use
+ * a different type for your platform (must be signed). */
+#ifdef LWIP_ERR_T
+typedef LWIP_ERR_T err_t;
+#else /* LWIP_ERR_T */
+ typedef s8_t err_t;
+#endif /* LWIP_ERR_T*/
+
+/* Definitions for error constants. */
+
+#define ERR_OK 0 /* No error, everything OK. */
+#define ERR_MEM -1 /* Out of memory error. */
+#define ERR_BUF -2 /* Buffer error. */
+#define ERR_TIMEOUT -3 /* Timeout. */
+#define ERR_RTE -4 /* Routing problem. */
+
+#define ERR_IS_FATAL(e) ((e) < ERR_RTE)
+
+#define ERR_ABRT -5 /* Connection aborted. */
+#define ERR_RST -6 /* Connection reset. */
+#define ERR_CLSD -7 /* Connection closed. */
+#define ERR_CONN -8 /* Not connected. */
+
+#define ERR_VAL -9 /* Illegal value. */
+
+#define ERR_ARG -10 /* Illegal argument. */
+
+#define ERR_USE -11 /* Address in use. */
+
+#define ERR_IF -12 /* Low-level netif error */
+#define ERR_ISCONN -13 /* Already connected. */
+
+#define ERR_INPROGRESS -14 /* Operation in progress */
+
+
+#ifdef LWIP_DEBUG
+extern const char *lwip_strerr(err_t err);
+#else
+#define lwip_strerr(x) ""
+#endif /* LWIP_DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_ERR_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/init.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/init.h
new file mode 100644
index 000000000..a4dc0577f
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/init.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_INIT_H__
+#define __LWIP_INIT_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** X.x.x: Major version of the stack */
+#define LWIP_VERSION_MAJOR 1U
+/** x.X.x: Minor version of the stack */
+#define LWIP_VERSION_MINOR 3U
+/** x.x.X: Revision of the stack */
+#define LWIP_VERSION_REVISION 1U
+/** For release candidates, this is set to 1..254
+ * For official releases, this is set to 255 (LWIP_RC_RELEASE)
+ * For development versions (CVS), this is set to 0 (LWIP_RC_DEVELOPMENT) */
+#define LWIP_VERSION_RC 255U
+
+/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
+#define LWIP_RC_RELEASE 255U
+/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for CVS versions */
+#define LWIP_RC_DEVELOPMENT 0U
+
+#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE)
+#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT)
+#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT))
+
+/** Provides the version of the stack */
+#define LWIP_VERSION (LWIP_VERSION_MAJOR << 24 | LWIP_VERSION_MINOR << 16 | \
+ LWIP_VERSION_REVISION << 8 | LWIP_VERSION_RC)
+
+/* Modules initialization */
+void lwip_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_INIT_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/mem.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/mem.h
new file mode 100644
index 000000000..327c2049f
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/mem.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_MEM_H__
+#define __LWIP_MEM_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if MEM_LIBC_MALLOC
+
+#include <stddef.h> /* for size_t */
+
+typedef size_t mem_size_t;
+
+/* aliases for C library malloc() */
+#define mem_init()
+/* in case C library malloc() needs extra protection,
+ * allow these defines to be overridden.
+ */
+#ifndef mem_free
+#define mem_free free
+#endif
+#ifndef mem_malloc
+#define mem_malloc malloc
+#endif
+#ifndef mem_calloc
+#define mem_calloc calloc
+#endif
+#ifndef mem_realloc
+static void *mem_realloc(void *mem, mem_size_t size)
+{
+ LWIP_UNUSED_ARG(size);
+ return mem;
+}
+#endif
+#else /* MEM_LIBC_MALLOC */
+
+/* MEM_SIZE would have to be aligned, but using 64000 here instead of
+ * 65535 leaves some room for alignment...
+ */
+#if MEM_SIZE > 64000l
+typedef u32_t mem_size_t;
+#else
+typedef u16_t mem_size_t;
+#endif /* MEM_SIZE > 64000 */
+
+#if MEM_USE_POOLS
+/** mem_init is not used when using pools instead of a heap */
+#define mem_init()
+/** mem_realloc is not used when using pools instead of a heap:
+ we can't free part of a pool element and don't want to copy the rest */
+#define mem_realloc(mem, size) (mem)
+#else /* MEM_USE_POOLS */
+/* lwIP alternative malloc */
+void mem_init(void);
+void *mem_realloc(void *mem, mem_size_t size);
+#endif /* MEM_USE_POOLS */
+void *mem_malloc(mem_size_t size);
+void *mem_calloc(mem_size_t count, mem_size_t size);
+void mem_free(void *mem);
+#endif /* MEM_LIBC_MALLOC */
+
+#ifndef LWIP_MEM_ALIGN_SIZE
+#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
+#endif
+
+#ifndef LWIP_MEM_ALIGN
+#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_MEM_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp.h
new file mode 100644
index 000000000..f0d073994
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __LWIP_MEMP_H__
+#define __LWIP_MEMP_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */
+typedef enum {
+#define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name,
+#include "lwip/memp_std.h"
+ MEMP_MAX
+} memp_t;
+
+#if MEM_USE_POOLS
+/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */
+typedef enum {
+ /* Get the first (via:
+ MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/
+ MEMP_POOL_HELPER_FIRST = ((u8_t)
+#define LWIP_MEMPOOL(name,num,size,desc)
+#define LWIP_MALLOC_MEMPOOL_START 1
+#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0
+#define LWIP_MALLOC_MEMPOOL_END
+#include "lwip/memp_std.h"
+ ) ,
+ /* Get the last (via:
+ MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */
+ MEMP_POOL_HELPER_LAST = ((u8_t)
+#define LWIP_MEMPOOL(name,num,size,desc)
+#define LWIP_MALLOC_MEMPOOL_START
+#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size *
+#define LWIP_MALLOC_MEMPOOL_END 1
+#include "lwip/memp_std.h"
+ )
+} memp_pool_helper_t;
+
+/* The actual start and stop values are here (cast them over)
+ We use this helper type and these defines so we can avoid using const memp_t values */
+#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)
+#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST)
+#endif /* MEM_USE_POOLS */
+
+#if MEMP_MEM_MALLOC || MEM_USE_POOLS
+extern const u16_t memp_sizes[MEMP_MAX];
+#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */
+
+#if MEMP_MEM_MALLOC
+
+#include "mem.h"
+
+#define memp_init()
+#define memp_malloc(type) mem_malloc(memp_sizes[type])
+#define memp_free(type, mem) mem_free(mem)
+
+#else /* MEMP_MEM_MALLOC */
+
+#if MEM_USE_POOLS
+/** This structure is used to save the pool one element came from. */
+struct memp_malloc_helper
+{
+ memp_t poolnr;
+};
+#endif /* MEM_USE_POOLS */
+
+void memp_init(void);
+
+#if MEMP_OVERFLOW_CHECK
+void *memp_malloc_fn(memp_t type, const char* file, const int line);
+#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)
+#else
+void *memp_malloc(memp_t type);
+#endif
+void memp_free(memp_t type, void *mem);
+
+#endif /* MEMP_MEM_MALLOC */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_MEMP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp_std.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp_std.h
new file mode 100644
index 000000000..344690328
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/memp_std.h
@@ -0,0 +1,102 @@
+/*
+ * SETUP: Make sure we define everything we will need.
+ *
+ * We have create three types of pools:
+ * 1) MEMPOOL - standard pools
+ * 2) MALLOC_MEMPOOL - to be used by mem_malloc in mem.c
+ * 3) PBUF_MEMPOOL - a mempool of pbuf's, so include space for the pbuf struct
+ *
+ * If the include'r doesn't require any special treatment of each of the types
+ * above, then will declare #2 & #3 to be just standard mempools.
+ */
+#ifndef LWIP_MALLOC_MEMPOOL
+/* This treats "malloc pools" just like any other pool.
+ The pools are a little bigger to provide 'size' as the amount of user data. */
+#define LWIP_MALLOC_MEMPOOL(num, size) LWIP_MEMPOOL(POOL_##size, num, (size + sizeof(struct memp_malloc_helper)), "MALLOC_"#size)
+#define LWIP_MALLOC_MEMPOOL_START
+#define LWIP_MALLOC_MEMPOOL_END
+#endif /* LWIP_MALLOC_MEMPOOL */
+
+#ifndef LWIP_PBUF_MEMPOOL
+/* This treats "pbuf pools" just like any other pool.
+ * Allocates buffers for a pbuf struct AND a payload size */
+#define LWIP_PBUF_MEMPOOL(name, num, payload, desc) LWIP_MEMPOOL(name, num, (MEMP_ALIGN_SIZE(sizeof(struct pbuf)) + MEMP_ALIGN_SIZE(payload)), desc)
+#endif /* LWIP_PBUF_MEMPOOL */
+
+
+/*
+ * A list of internal pools used by LWIP.
+ *
+ * LWIP_MEMPOOL(pool_name, number_elements, element_size, pool_description)
+ * creates a pool name MEMP_pool_name. description is used in stats.c
+ */
+#if LWIP_RAW
+LWIP_MEMPOOL(RAW_PCB, MEMP_NUM_RAW_PCB, sizeof(struct raw_pcb), "RAW_PCB")
+#endif /* LWIP_RAW */
+
+#if LWIP_UDP
+LWIP_MEMPOOL(UDP_PCB, MEMP_NUM_UDP_PCB, sizeof(struct udp_pcb), "UDP_PCB")
+#endif /* LWIP_UDP */
+
+#if LWIP_TCP
+LWIP_MEMPOOL(TCP_PCB, MEMP_NUM_TCP_PCB, sizeof(struct tcp_pcb), "TCP_PCB")
+LWIP_MEMPOOL(TCP_PCB_LISTEN, MEMP_NUM_TCP_PCB_LISTEN, sizeof(struct tcp_pcb_listen), "TCP_PCB_LISTEN")
+LWIP_MEMPOOL(TCP_SEG, MEMP_NUM_TCP_SEG, sizeof(struct tcp_seg), "TCP_SEG")
+#endif /* LWIP_TCP */
+
+#if IP_REASSEMBLY
+LWIP_MEMPOOL(REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip_reassdata), "REASSDATA")
+#endif /* IP_REASSEMBLY */
+
+#if LWIP_NETCONN
+LWIP_MEMPOOL(NETBUF, MEMP_NUM_NETBUF, sizeof(struct netbuf), "NETBUF")
+LWIP_MEMPOOL(NETCONN, MEMP_NUM_NETCONN, sizeof(struct netconn), "NETCONN")
+#endif /* LWIP_NETCONN */
+
+#if NO_SYS==0
+LWIP_MEMPOOL(TCPIP_MSG_API, MEMP_NUM_TCPIP_MSG_API, sizeof(struct tcpip_msg), "TCPIP_MSG_API")
+LWIP_MEMPOOL(TCPIP_MSG_INPKT,MEMP_NUM_TCPIP_MSG_INPKT, sizeof(struct tcpip_msg), "TCPIP_MSG_INPKT")
+#endif /* NO_SYS==0 */
+
+#if ARP_QUEUEING
+LWIP_MEMPOOL(ARP_QUEUE, MEMP_NUM_ARP_QUEUE, sizeof(struct etharp_q_entry), "ARP_QUEUE")
+#endif /* ARP_QUEUEING */
+
+#if LWIP_IGMP
+LWIP_MEMPOOL(IGMP_GROUP, MEMP_NUM_IGMP_GROUP, sizeof(struct igmp_group), "IGMP_GROUP")
+#endif /* LWIP_IGMP */
+
+#if NO_SYS==0
+LWIP_MEMPOOL(SYS_TIMEOUT, MEMP_NUM_SYS_TIMEOUT, sizeof(struct sys_timeo), "SYS_TIMEOUT")
+#endif /* NO_SYS==0 */
+
+
+/*
+ * A list of pools of pbuf's used by LWIP.
+ *
+ * LWIP_PBUF_MEMPOOL(pool_name, number_elements, pbuf_payload_size, pool_description)
+ * creates a pool name MEMP_pool_name. description is used in stats.c
+ * This allocates enough space for the pbuf struct and a payload.
+ * (Example: pbuf_payload_size=0 allocates only size for the struct)
+ */
+LWIP_PBUF_MEMPOOL(PBUF, MEMP_NUM_PBUF, 0, "PBUF_REF/ROM")
+LWIP_PBUF_MEMPOOL(PBUF_POOL, PBUF_POOL_SIZE, PBUF_POOL_BUFSIZE, "PBUF_POOL")
+
+
+/*
+ * Allow for user-defined pools; this must be explicitly set in lwipopts.h
+ * since the default is to NOT look for lwippools.h
+ */
+#if MEMP_USE_CUSTOM_POOLS
+#include "lwippools.h"
+#endif /* MEMP_USE_CUSTOM_POOLS */
+
+/*
+ * REQUIRED CLEANUP: Clear up so we don't get "multiply defined" error later
+ * (#undef is ignored for something that is not defined)
+ */
+#undef LWIP_MEMPOOL
+#undef LWIP_MALLOC_MEMPOOL
+#undef LWIP_MALLOC_MEMPOOL_START
+#undef LWIP_MALLOC_MEMPOOL_END
+#undef LWIP_PBUF_MEMPOOL
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netbuf.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netbuf.h
new file mode 100644
index 000000000..6d84dd073
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netbuf.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_NETBUF_H__
+#define __LWIP_NETBUF_H__
+
+#include "lwip/opt.h"
+#include "lwip/pbuf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct netbuf {
+ struct pbuf *p, *ptr;
+ struct ip_addr *addr;
+ u16_t port;
+};
+
+/* Network buffer functions: */
+struct netbuf * netbuf_new (void);
+void netbuf_delete (struct netbuf *buf);
+void * netbuf_alloc (struct netbuf *buf, u16_t size);
+void netbuf_free (struct netbuf *buf);
+err_t netbuf_ref (struct netbuf *buf,
+ const void *dataptr, u16_t size);
+void netbuf_chain (struct netbuf *head,
+ struct netbuf *tail);
+
+u16_t netbuf_len (struct netbuf *buf);
+err_t netbuf_data (struct netbuf *buf,
+ void **dataptr, u16_t *len);
+s8_t netbuf_next (struct netbuf *buf);
+void netbuf_first (struct netbuf *buf);
+
+
+#define netbuf_copy_partial(buf, dataptr, len, offset) \
+ pbuf_copy_partial((buf)->p, (dataptr), (len), (offset))
+#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0)
+#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len)
+#define netbuf_len(buf) ((buf)->p->tot_len)
+#define netbuf_fromaddr(buf) ((buf)->addr)
+#define netbuf_fromport(buf) ((buf)->port)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_NETBUF_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netdb.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netdb.h
new file mode 100644
index 000000000..0f7b2ec04
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netdb.h
@@ -0,0 +1,111 @@
+/*
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Simon Goldschmidt
+ *
+ */
+
+#include "lwip/opt.h"
+
+#if LWIP_DNS && LWIP_SOCKET
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/sockets.h"
+
+/* some rarely used options */
+#ifndef LWIP_DNS_API_DECLARE_H_ERRNO
+#define LWIP_DNS_API_DECLARE_H_ERRNO 1
+#endif
+
+#ifndef LWIP_DNS_API_DEFINE_ERRORS
+#define LWIP_DNS_API_DEFINE_ERRORS 1
+#endif
+
+#ifndef LWIP_DNS_API_DECLARE_STRUCTS
+#define LWIP_DNS_API_DECLARE_STRUCTS 1
+#endif
+
+#if LWIP_DNS_API_DEFINE_ERRORS
+/** Errors used by the DNS API functions, h_errno can be one of them */
+#define EAI_NONAME 200
+#define EAI_SERVICE 201
+#define EAI_FAIL 202
+#define EAI_MEMORY 203
+
+#define HOST_NOT_FOUND 210
+#define NO_DATA 211
+#define NO_RECOVERY 212
+#define TRY_AGAIN 213
+#endif /* LWIP_DNS_API_DEFINE_ERRORS */
+
+#if LWIP_DNS_API_DECLARE_STRUCTS
+struct hostent {
+ char *h_name; /* Official name of the host. */
+ char **h_aliases; /* A pointer to an array of pointers to alternative host names,
+ terminated by a null pointer. */
+ int h_addrtype; /* Address type. */
+ int h_length; /* The length, in bytes, of the address. */
+ char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
+ network byte order) for the host, terminated by a null pointer. */
+#define h_addr h_addr_list[0] /* for backward compatibility */
+};
+
+struct addrinfo {
+ int ai_flags; /* Input flags. */
+ int ai_family; /* Address family of socket. */
+ int ai_socktype; /* Socket type. */
+ int ai_protocol; /* Protocol of socket. */
+ socklen_t ai_addrlen; /* Length of socket address. */
+ struct sockaddr *ai_addr; /* Socket address of socket. */
+ char *ai_canonname; /* Canonical name of service location. */
+ struct addrinfo *ai_next; /* Pointer to next in list. */
+};
+#endif /* LWIP_DNS_API_DECLARE_STRUCTS */
+
+#if LWIP_DNS_API_DECLARE_H_ERRNO
+/* application accessable error code set by the DNS API functions */
+extern int h_errno;
+#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
+
+struct hostent *lwip_gethostbyname(const char *name);
+int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
+ size_t buflen, struct hostent **result, int *h_errnop);
+void lwip_freeaddrinfo(struct addrinfo *ai);
+int lwip_getaddrinfo(const char *nodename,
+ const char *servname,
+ const struct addrinfo *hints,
+ struct addrinfo **res);
+
+#if LWIP_COMPAT_SOCKETS
+#define gethostbyname(name) lwip_gethostbyname(name)
+#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
+ lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
+#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(a)
+#define getaddrinfo(nodname, servname, hints, res) \
+ lwip_getaddrinfo(nodname, servname, hints, res)
+#endif /* LWIP_COMPAT_SOCKETS */
+
+#endif /* LWIP_DNS && LWIP_SOCKET */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netif.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netif.h
new file mode 100644
index 000000000..a32503052
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netif.h
@@ -0,0 +1,263 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_NETIF_H__
+#define __LWIP_NETIF_H__
+
+#include "lwip/opt.h"
+
+#define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF)
+
+#include "lwip/err.h"
+
+#include "lwip/ip_addr.h"
+
+#include "lwip/inet.h"
+#include "lwip/pbuf.h"
+#if LWIP_DHCP
+struct dhcp;
+#endif
+#if LWIP_AUTOIP
+struct autoip;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Throughout this file, IP addresses are expected to be in
+ * the same byte order as in IP_PCB. */
+
+/** must be the maximum of all used hardware address lengths
+ across all types of interfaces in use */
+#define NETIF_MAX_HWADDR_LEN 6U
+
+/** TODO: define the use (where, when, whom) of netif flags */
+
+/** whether the network interface is 'up'. this is
+ * a software flag used to control whether this network
+ * interface is enabled and processes traffic.
+ */
+#define NETIF_FLAG_UP 0x01U
+/** if set, the netif has broadcast capability */
+#define NETIF_FLAG_BROADCAST 0x02U
+/** if set, the netif is one end of a point-to-point connection */
+#define NETIF_FLAG_POINTTOPOINT 0x04U
+/** if set, the interface is configured using DHCP */
+#define NETIF_FLAG_DHCP 0x08U
+/** if set, the interface has an active link
+ * (set by the network interface driver) */
+#define NETIF_FLAG_LINK_UP 0x10U
+/** if set, the netif is an device using ARP */
+#define NETIF_FLAG_ETHARP 0x20U
+/** if set, the netif has IGMP capability */
+#define NETIF_FLAG_IGMP 0x40U
+
+/** Generic data structure used for all lwIP network interfaces.
+ * The following fields should be filled in by the initialization
+ * function for the device driver: hwaddr_len, hwaddr[], mtu, flags */
+
+struct netif {
+ /** pointer to next in linked list */
+ struct netif *next;
+
+ /** IP address configuration in network byte order */
+ struct ip_addr ip_addr;
+ struct ip_addr netmask;
+ struct ip_addr gw;
+
+ /** This function is called by the network device driver
+ * to pass a packet up the TCP/IP stack. */
+ err_t (* input)(struct pbuf *p, struct netif *inp);
+ /** This function is called by the IP module when it wants
+ * to send a packet on the interface. This function typically
+ * first resolves the hardware address, then sends the packet. */
+ err_t (* output)(struct netif *netif, struct pbuf *p,
+ struct ip_addr *ipaddr);
+ /** This function is called by the ARP module when it wants
+ * to send a packet on the interface. This function outputs
+ * the pbuf as-is on the link medium. */
+ err_t (* linkoutput)(struct netif *netif, struct pbuf *p);
+#if LWIP_NETIF_STATUS_CALLBACK
+ /** This function is called when the netif state is set to up or down
+ */
+ void (* status_callback)(struct netif *netif);
+#endif /* LWIP_NETIF_STATUS_CALLBACK */
+#if LWIP_NETIF_LINK_CALLBACK
+ /** This function is called when the netif link is set to up or down
+ */
+ void (* link_callback)(struct netif *netif);
+#endif /* LWIP_NETIF_LINK_CALLBACK */
+ /** This field can be set by the device driver and could point
+ * to state information for the device. */
+ void *state;
+#if LWIP_DHCP
+ /** the DHCP client state information for this netif */
+ struct dhcp *dhcp;
+#endif /* LWIP_DHCP */
+#if LWIP_AUTOIP
+ /** the AutoIP client state information for this netif */
+ struct autoip *autoip;
+#endif
+#if LWIP_NETIF_HOSTNAME
+ /* the hostname for this netif, NULL is a valid value */
+ char* hostname;
+#endif /* LWIP_NETIF_HOSTNAME */
+ /** number of bytes used in hwaddr */
+ u8_t hwaddr_len;
+ /** link level hardware address of this interface */
+ u8_t hwaddr[NETIF_MAX_HWADDR_LEN];
+ /** maximum transfer unit (in bytes) */
+ u16_t mtu;
+ /** flags (see NETIF_FLAG_ above) */
+ u8_t flags;
+ /** descriptive abbreviation */
+ char name[2];
+ /** number of this interface */
+ u8_t num;
+#if LWIP_SNMP
+ /** link type (from "snmp_ifType" enum from snmp.h) */
+ u8_t link_type;
+ /** (estimate) link speed */
+ u32_t link_speed;
+ /** timestamp at last change made (up/down) */
+ u32_t ts;
+ /** counters */
+ u32_t ifinoctets;
+ u32_t ifinucastpkts;
+ u32_t ifinnucastpkts;
+ u32_t ifindiscards;
+ u32_t ifoutoctets;
+ u32_t ifoutucastpkts;
+ u32_t ifoutnucastpkts;
+ u32_t ifoutdiscards;
+#endif /* LWIP_SNMP */
+#if LWIP_IGMP
+ /* This function could be called to add or delete a entry in the multicast filter table of the ethernet MAC.*/
+ err_t (*igmp_mac_filter)( struct netif *netif, struct ip_addr *group, u8_t action);
+#endif /* LWIP_IGMP */
+#if LWIP_NETIF_HWADDRHINT
+ u8_t *addr_hint;
+#endif /* LWIP_NETIF_HWADDRHINT */
+#if ENABLE_LOOPBACK
+ /* List of packets to be queued for ourselves. */
+ struct pbuf *loop_first;
+ struct pbuf *loop_last;
+#if LWIP_LOOPBACK_MAX_PBUFS
+ u16_t loop_cnt_current;
+#endif /* LWIP_LOOPBACK_MAX_PBUFS */
+#endif /* ENABLE_LOOPBACK */
+};
+
+#if LWIP_SNMP
+#define NETIF_INIT_SNMP(netif, type, speed) \
+ /* use "snmp_ifType" enum from snmp.h for "type", snmp_ifType_ethernet_csmacd by example */ \
+ netif->link_type = type; \
+ /* your link speed here (units: bits per second) */ \
+ netif->link_speed = speed; \
+ netif->ts = 0; \
+ netif->ifinoctets = 0; \
+ netif->ifinucastpkts = 0; \
+ netif->ifinnucastpkts = 0; \
+ netif->ifindiscards = 0; \
+ netif->ifoutoctets = 0; \
+ netif->ifoutucastpkts = 0; \
+ netif->ifoutnucastpkts = 0; \
+ netif->ifoutdiscards = 0
+#else /* LWIP_SNMP */
+#define NETIF_INIT_SNMP(netif, type, speed)
+#endif /* LWIP_SNMP */
+
+
+/** The list of network interfaces. */
+extern struct netif *netif_list;
+/** The default network interface. */
+extern struct netif *netif_default;
+
+#define netif_init() /* Compatibility define, not init needed. */
+
+struct netif *netif_add(struct netif *netif, struct ip_addr *ipaddr, struct ip_addr *netmask,
+ struct ip_addr *gw,
+ void *state,
+ err_t (* init)(struct netif *netif),
+ err_t (* input)(struct pbuf *p, struct netif *netif));
+
+void
+netif_set_addr(struct netif *netif,struct ip_addr *ipaddr, struct ip_addr *netmask,
+ struct ip_addr *gw);
+void netif_remove(struct netif * netif);
+
+/* Returns a network interface given its name. The name is of the form
+ "et0", where the first two letters are the "name" field in the
+ netif structure, and the digit is in the num field in the same
+ structure. */
+struct netif *netif_find(char *name);
+
+void netif_set_default(struct netif *netif);
+
+void netif_set_ipaddr(struct netif *netif, struct ip_addr *ipaddr);
+void netif_set_netmask(struct netif *netif, struct ip_addr *netmask);
+void netif_set_gw(struct netif *netif, struct ip_addr *gw);
+
+void netif_set_up(struct netif *netif);
+void netif_set_down(struct netif *netif);
+u8_t netif_is_up(struct netif *netif);
+
+#if LWIP_NETIF_STATUS_CALLBACK
+/*
+ * Set callback to be called when interface is brought up/down
+ */
+void netif_set_status_callback(struct netif *netif, void (* status_callback)(struct netif *netif));
+#endif /* LWIP_NETIF_STATUS_CALLBACK */
+
+#if LWIP_NETIF_LINK_CALLBACK
+void netif_set_link_up(struct netif *netif);
+void netif_set_link_down(struct netif *netif);
+u8_t netif_is_link_up(struct netif *netif);
+/*
+ * Set callback to be called when link is brought up/down
+ */
+void netif_set_link_callback(struct netif *netif, void (* link_callback)(struct netif *netif));
+#endif /* LWIP_NETIF_LINK_CALLBACK */
+
+#ifdef __cplusplus
+}
+#endif
+
+#if ENABLE_LOOPBACK
+err_t netif_loop_output(struct netif *netif, struct pbuf *p, struct ip_addr *dest_ip);
+void netif_poll(struct netif *netif);
+#if !LWIP_NETIF_LOOPBACK_MULTITHREADING
+void netif_poll_all(void);
+#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
+#endif /* ENABLE_LOOPBACK */
+
+#endif /* __LWIP_NETIF_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netifapi.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netifapi.h
new file mode 100644
index 000000000..36c6bd0a2
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/netifapi.h
@@ -0,0 +1,100 @@
+/*
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ */
+
+#ifndef __LWIP_NETIFAPI_H__
+#define __LWIP_NETIFAPI_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/sys.h"
+#include "lwip/netif.h"
+#include "lwip/dhcp.h"
+#include "lwip/autoip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct netifapi_msg_msg {
+#if !LWIP_TCPIP_CORE_LOCKING
+ sys_sem_t sem;
+#endif /* !LWIP_TCPIP_CORE_LOCKING */
+ err_t err;
+ struct netif *netif;
+ union {
+ struct {
+ struct ip_addr *ipaddr;
+ struct ip_addr *netmask;
+ struct ip_addr *gw;
+ void *state;
+ err_t (* init) (struct netif *netif);
+ err_t (* input)(struct pbuf *p, struct netif *netif);
+ } add;
+ struct {
+ void (* voidfunc)(struct netif *netif);
+ err_t (* errtfunc)(struct netif *netif);
+ } common;
+ } msg;
+};
+
+struct netifapi_msg {
+ void (* function)(struct netifapi_msg_msg *msg);
+ struct netifapi_msg_msg msg;
+};
+
+
+/* API for application */
+err_t netifapi_netif_add ( struct netif *netif,
+ struct ip_addr *ipaddr,
+ struct ip_addr *netmask,
+ struct ip_addr *gw,
+ void *state,
+ err_t (* init)(struct netif *netif),
+ err_t (* input)(struct pbuf *p, struct netif *netif) );
+
+err_t netifapi_netif_common ( struct netif *netif,
+ void (* voidfunc)(struct netif *netif),
+ err_t (* errtfunc)(struct netif *netif) );
+
+#define netifapi_netif_remove(n) netifapi_netif_common(n, netif_remove, NULL)
+#define netifapi_netif_set_up(n) netifapi_netif_common(n, netif_set_up, NULL)
+#define netifapi_netif_set_down(n) netifapi_netif_common(n, netif_set_down, NULL)
+#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL)
+#define netifapi_dhcp_start(n) netifapi_netif_common(n, NULL, dhcp_start)
+#define netifapi_dhcp_stop(n) netifapi_netif_common(n, dhcp_stop, NULL)
+#define netifapi_autoip_start(n) netifapi_netif_common(n, NULL, autoip_start)
+#define netifapi_autoip_stop(n) netifapi_netif_common(n, NULL, autoip_stop)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_NETIF_API */
+
+#endif /* __LWIP_NETIFAPI_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/opt.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/opt.h
new file mode 100644
index 000000000..e8bd8b89e
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/opt.h
@@ -0,0 +1,1820 @@
+/**
+ * @file
+ *
+ * lwIP Options Configuration
+ */
+
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_OPT_H__
+#define __LWIP_OPT_H__
+
+/*
+ * Include user defined options first. Anything not defined in these files
+ * will be set to standard values. Override anything you dont like!
+ */
+#include "lwipopts.h"
+#include "lwip/debug.h"
+
+/*
+ -----------------------------------------------
+ ---------- Platform specific locking ----------
+ -----------------------------------------------
+*/
+
+/**
+ * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
+ * critical regions during buffer allocation, deallocation and memory
+ * allocation and deallocation.
+ */
+#ifndef SYS_LIGHTWEIGHT_PROT
+#define SYS_LIGHTWEIGHT_PROT 0
+#endif
+
+/**
+ * NO_SYS==1: Provides VERY minimal functionality. Otherwise,
+ * use lwIP facilities.
+ */
+#ifndef NO_SYS
+#define NO_SYS 0
+#endif
+
+/**
+ * MEMCPY: override this if you have a faster implementation at hand than the
+ * one included in your C library
+ */
+#ifndef MEMCPY
+#define MEMCPY(dst,src,len) memcpy(dst,src,len)
+#endif
+
+/**
+ * SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a
+ * call to memcpy() if the length is known at compile time and is small.
+ */
+#ifndef SMEMCPY
+#define SMEMCPY(dst,src,len) memcpy(dst,src,len)
+#endif
+
+/*
+ ------------------------------------
+ ---------- Memory options ----------
+ ------------------------------------
+*/
+/**
+ * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library
+ * instead of the lwip internal allocator. Can save code size if you
+ * already use it.
+ */
+#ifndef MEM_LIBC_MALLOC
+#define MEM_LIBC_MALLOC 0
+#endif
+
+/**
+* MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator.
+* Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution
+* speed and usage from interrupts!
+*/
+#ifndef MEMP_MEM_MALLOC
+#define MEMP_MEM_MALLOC 0
+#endif
+
+/**
+ * MEM_ALIGNMENT: should be set to the alignment of the CPU
+ * 4 byte alignment -> #define MEM_ALIGNMENT 4
+ * 2 byte alignment -> #define MEM_ALIGNMENT 2
+ */
+#ifndef MEM_ALIGNMENT
+#define MEM_ALIGNMENT 1
+#endif
+
+/**
+ * MEM_SIZE: the size of the heap memory. If the application will send
+ * a lot of data that needs to be copied, this should be set high.
+ */
+#ifndef MEM_SIZE
+#define MEM_SIZE 1600
+#endif
+
+/**
+ * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable
+ * amount of bytes before and after each memp element in every pool and fills
+ * it with a prominent default value.
+ * MEMP_OVERFLOW_CHECK == 0 no checking
+ * MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed
+ * MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time
+ * memp_malloc() or memp_free() is called (useful but slow!)
+ */
+#ifndef MEMP_OVERFLOW_CHECK
+#define MEMP_OVERFLOW_CHECK 0
+#endif
+
+/**
+ * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make
+ * sure that there are no cycles in the linked lists.
+ */
+#ifndef MEMP_SANITY_CHECK
+#define MEMP_SANITY_CHECK 0
+#endif
+
+/**
+ * MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set
+ * of memory pools of various sizes. When mem_malloc is called, an element of
+ * the smallest pool that can provide the length needed is returned.
+ * To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled.
+ */
+#ifndef MEM_USE_POOLS
+#define MEM_USE_POOLS 0
+#endif
+
+/**
+ * MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next
+ * bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more
+ * reliable. */
+#ifndef MEM_USE_POOLS_TRY_BIGGER_POOL
+#define MEM_USE_POOLS_TRY_BIGGER_POOL 0
+#endif
+
+/**
+ * MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h
+ * that defines additional pools beyond the "standard" ones required
+ * by lwIP. If you set this to 1, you must have lwippools.h in your
+ * inlude path somewhere.
+ */
+#ifndef MEMP_USE_CUSTOM_POOLS
+#define MEMP_USE_CUSTOM_POOLS 0
+#endif
+
+/**
+ * Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from
+ * interrupt context (or another context that doesn't allow waiting for a
+ * semaphore).
+ * If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT,
+ * while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs
+ * with each loop so that mem_free can run.
+ *
+ * ATTENTION: As you can see from the above description, this leads to dis-/
+ * enabling interrupts often, which can be slow! Also, on low memory, mem_malloc
+ * can need longer.
+ *
+ * If you don't want that, at least for NO_SYS=0, you can still use the following
+ * functions to enqueue a deallocation call which then runs in the tcpip_thread
+ * context:
+ * - pbuf_free_callback(p);
+ * - mem_free_callback(m);
+ */
+#ifndef LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT
+#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0
+#endif
+
+/*
+ ------------------------------------------------
+ ---------- Internal Memory Pool Sizes ----------
+ ------------------------------------------------
+*/
+/**
+ * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
+ * If the application sends a lot of data out of ROM (or other static memory),
+ * this should be set high.
+ */
+#ifndef MEMP_NUM_PBUF
+#define MEMP_NUM_PBUF 16
+#endif
+
+/**
+ * MEMP_NUM_RAW_PCB: Number of raw connection PCBs
+ * (requires the LWIP_RAW option)
+ */
+#ifndef MEMP_NUM_RAW_PCB
+#define MEMP_NUM_RAW_PCB 4
+#endif
+
+/**
+ * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
+ * per active UDP "connection".
+ * (requires the LWIP_UDP option)
+ */
+#ifndef MEMP_NUM_UDP_PCB
+#define MEMP_NUM_UDP_PCB 4
+#endif
+
+/**
+ * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
+ * (requires the LWIP_TCP option)
+ */
+#ifndef MEMP_NUM_TCP_PCB
+#define MEMP_NUM_TCP_PCB 5
+#endif
+
+/**
+ * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
+ * (requires the LWIP_TCP option)
+ */
+#ifndef MEMP_NUM_TCP_PCB_LISTEN
+#define MEMP_NUM_TCP_PCB_LISTEN 8
+#endif
+
+/**
+ * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
+ * (requires the LWIP_TCP option)
+ */
+#ifndef MEMP_NUM_TCP_SEG
+#define MEMP_NUM_TCP_SEG 16
+#endif
+
+/**
+ * MEMP_NUM_REASSDATA: the number of simultaneously IP packets queued for
+ * reassembly (whole packets, not fragments!)
+ */
+#ifndef MEMP_NUM_REASSDATA
+#define MEMP_NUM_REASSDATA 5
+#endif
+
+/**
+ * MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
+ * packets (pbufs) that are waiting for an ARP request (to resolve
+ * their destination address) to finish.
+ * (requires the ARP_QUEUEING option)
+ */
+#ifndef MEMP_NUM_ARP_QUEUE
+#define MEMP_NUM_ARP_QUEUE 30
+#endif
+
+/**
+ * MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces
+ * can be members et the same time (one per netif - allsystems group -, plus one
+ * per netif membership).
+ * (requires the LWIP_IGMP option)
+ */
+#ifndef MEMP_NUM_IGMP_GROUP
+#define MEMP_NUM_IGMP_GROUP 8
+#endif
+
+/**
+ * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
+ * (requires NO_SYS==0)
+ */
+#ifndef MEMP_NUM_SYS_TIMEOUT
+#define MEMP_NUM_SYS_TIMEOUT 3
+#endif
+
+/**
+ * MEMP_NUM_NETBUF: the number of struct netbufs.
+ * (only needed if you use the sequential API, like api_lib.c)
+ */
+#ifndef MEMP_NUM_NETBUF
+#define MEMP_NUM_NETBUF 2
+#endif
+
+/**
+ * MEMP_NUM_NETCONN: the number of struct netconns.
+ * (only needed if you use the sequential API, like api_lib.c)
+ */
+#ifndef MEMP_NUM_NETCONN
+#define MEMP_NUM_NETCONN 4
+#endif
+
+/**
+ * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
+ * for callback/timeout API communication.
+ * (only needed if you use tcpip.c)
+ */
+#ifndef MEMP_NUM_TCPIP_MSG_API
+#define MEMP_NUM_TCPIP_MSG_API 8
+#endif
+
+/**
+ * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
+ * for incoming packets.
+ * (only needed if you use tcpip.c)
+ */
+#ifndef MEMP_NUM_TCPIP_MSG_INPKT
+#define MEMP_NUM_TCPIP_MSG_INPKT 8
+#endif
+
+/**
+ * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
+ */
+#ifndef PBUF_POOL_SIZE
+#define PBUF_POOL_SIZE 16
+#endif
+
+/*
+ ---------------------------------
+ ---------- ARP options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_ARP==1: Enable ARP functionality.
+ */
+#ifndef LWIP_ARP
+#define LWIP_ARP 1
+#endif
+
+/**
+ * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached.
+ */
+#ifndef ARP_TABLE_SIZE
+#define ARP_TABLE_SIZE 10
+#endif
+
+/**
+ * ARP_QUEUEING==1: Outgoing packets are queued during hardware address
+ * resolution.
+ */
+#ifndef ARP_QUEUEING
+#define ARP_QUEUEING 1
+#endif
+
+/**
+ * ETHARP_TRUST_IP_MAC==1: Incoming IP packets cause the ARP table to be
+ * updated with the source MAC and IP addresses supplied in the packet.
+ * You may want to disable this if you do not trust LAN peers to have the
+ * correct addresses, or as a limited approach to attempt to handle
+ * spoofing. If disabled, lwIP will need to make a new ARP request if
+ * the peer is not already in the ARP table, adding a little latency.
+ */
+#ifndef ETHARP_TRUST_IP_MAC
+#define ETHARP_TRUST_IP_MAC 1
+#endif
+
+/*
+ --------------------------------
+ ---------- IP options ----------
+ --------------------------------
+*/
+/**
+ * IP_FORWARD==1: Enables the ability to forward IP packets across network
+ * interfaces. If you are going to run lwIP on a device with only one network
+ * interface, define this to 0.
+ */
+#ifndef IP_FORWARD
+#define IP_FORWARD 0
+#endif
+
+/**
+ * IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
+ * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
+ * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
+ */
+#ifndef IP_OPTIONS_ALLOWED
+#define IP_OPTIONS_ALLOWED 1
+#endif
+
+/**
+ * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
+ * this option does not affect outgoing packet sizes, which can be controlled
+ * via IP_FRAG.
+ */
+#ifndef IP_REASSEMBLY
+#define IP_REASSEMBLY 1
+#endif
+
+/**
+ * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
+ * that this option does not affect incoming packet sizes, which can be
+ * controlled via IP_REASSEMBLY.
+ */
+#ifndef IP_FRAG
+#define IP_FRAG 1
+#endif
+
+/**
+ * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
+ * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
+ * in this time, the whole packet is discarded.
+ */
+#ifndef IP_REASS_MAXAGE
+#define IP_REASS_MAXAGE 3
+#endif
+
+/**
+ * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
+ * Since the received pbufs are enqueued, be sure to configure
+ * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
+ * packets even if the maximum amount of fragments is enqueued for reassembly!
+ */
+#ifndef IP_REASS_MAX_PBUFS
+#define IP_REASS_MAX_PBUFS 10
+#endif
+
+/**
+ * IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
+ * fragmentation. Otherwise pbufs are allocated and reference the original
+ * packet data to be fragmented.
+ */
+#ifndef IP_FRAG_USES_STATIC_BUF
+#define IP_FRAG_USES_STATIC_BUF 1
+#endif
+
+/**
+ * IP_FRAG_MAX_MTU: Assumed max MTU on any interface for IP frag buffer
+ * (requires IP_FRAG_USES_STATIC_BUF==1)
+ */
+#if IP_FRAG_USES_STATIC_BUF && !defined(IP_FRAG_MAX_MTU)
+#define IP_FRAG_MAX_MTU 1500
+#endif
+
+/**
+ * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
+ */
+#ifndef IP_DEFAULT_TTL
+#define IP_DEFAULT_TTL 255
+#endif
+
+/**
+ * IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast
+ * filter per pcb on udp and raw send operations. To enable broadcast filter
+ * on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1.
+ */
+#ifndef IP_SOF_BROADCAST
+#define IP_SOF_BROADCAST 0
+#endif
+
+/**
+ * IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast
+ * filter on recv operations.
+ */
+#ifndef IP_SOF_BROADCAST_RECV
+#define IP_SOF_BROADCAST_RECV 0
+#endif
+
+/*
+ ----------------------------------
+ ---------- ICMP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_ICMP==1: Enable ICMP module inside the IP stack.
+ * Be careful, disable that make your product non-compliant to RFC1122
+ */
+#ifndef LWIP_ICMP
+#define LWIP_ICMP 1
+#endif
+
+/**
+ * ICMP_TTL: Default value for Time-To-Live used by ICMP packets.
+ */
+#ifndef ICMP_TTL
+#define ICMP_TTL (IP_DEFAULT_TTL)
+#endif
+
+/**
+ * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)
+ */
+#ifndef LWIP_BROADCAST_PING
+#define LWIP_BROADCAST_PING 0
+#endif
+
+/**
+ * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)
+ */
+#ifndef LWIP_MULTICAST_PING
+#define LWIP_MULTICAST_PING 0
+#endif
+
+/*
+ ---------------------------------
+ ---------- RAW options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
+ */
+#ifndef LWIP_RAW
+#define LWIP_RAW 1
+#endif
+
+/**
+ * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
+ */
+#ifndef RAW_TTL
+#define RAW_TTL (IP_DEFAULT_TTL)
+#endif
+
+/*
+ ----------------------------------
+ ---------- DHCP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_DHCP==1: Enable DHCP module.
+ */
+#ifndef LWIP_DHCP
+#define LWIP_DHCP 0
+#endif
+
+/**
+ * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address.
+ */
+#ifndef DHCP_DOES_ARP_CHECK
+#define DHCP_DOES_ARP_CHECK ((LWIP_DHCP) && (LWIP_ARP))
+#endif
+
+/*
+ ------------------------------------
+ ---------- AUTOIP options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_AUTOIP==1: Enable AUTOIP module.
+ */
+#ifndef LWIP_AUTOIP
+#define LWIP_AUTOIP 0
+#endif
+
+/**
+ * LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on
+ * the same interface at the same time.
+ */
+#ifndef LWIP_DHCP_AUTOIP_COOP
+#define LWIP_DHCP_AUTOIP_COOP 0
+#endif
+
+/**
+ * LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes
+ * that should be sent before falling back on AUTOIP. This can be set
+ * as low as 1 to get an AutoIP address very quickly, but you should
+ * be prepared to handle a changing IP address when DHCP overrides
+ * AutoIP.
+ */
+#ifndef LWIP_DHCP_AUTOIP_COOP_TRIES
+#define LWIP_DHCP_AUTOIP_COOP_TRIES 9
+#endif
+
+/*
+ ----------------------------------
+ ---------- SNMP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
+ * transport.
+ */
+#ifndef LWIP_SNMP
+#define LWIP_SNMP 0
+#endif
+
+/**
+ * SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
+ * allow. At least one request buffer is required.
+ */
+#ifndef SNMP_CONCURRENT_REQUESTS
+#define SNMP_CONCURRENT_REQUESTS 1
+#endif
+
+/**
+ * SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap
+ * destination is required
+ */
+#ifndef SNMP_TRAP_DESTINATIONS
+#define SNMP_TRAP_DESTINATIONS 1
+#endif
+
+/**
+ * SNMP_PRIVATE_MIB:
+ */
+#ifndef SNMP_PRIVATE_MIB
+#define SNMP_PRIVATE_MIB 0
+#endif
+
+/**
+ * Only allow SNMP write actions that are 'safe' (e.g. disabeling netifs is not
+ * a safe action and disabled when SNMP_SAFE_REQUESTS = 1).
+ * Unsafe requests are disabled by default!
+ */
+#ifndef SNMP_SAFE_REQUESTS
+#define SNMP_SAFE_REQUESTS 1
+#endif
+
+/*
+ ----------------------------------
+ ---------- IGMP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_IGMP==1: Turn on IGMP module.
+ */
+#ifndef LWIP_IGMP
+#define LWIP_IGMP 0
+#endif
+
+/*
+ ----------------------------------
+ ---------- DNS options -----------
+ ----------------------------------
+*/
+/**
+ * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
+ * transport.
+ */
+#ifndef LWIP_DNS
+#define LWIP_DNS 0
+#endif
+
+/** DNS maximum number of entries to maintain locally. */
+#ifndef DNS_TABLE_SIZE
+#define DNS_TABLE_SIZE 4
+#endif
+
+/** DNS maximum host name length supported in the name table. */
+#ifndef DNS_MAX_NAME_LENGTH
+#define DNS_MAX_NAME_LENGTH 256
+#endif
+
+/** The maximum of DNS servers */
+#ifndef DNS_MAX_SERVERS
+#define DNS_MAX_SERVERS 2
+#endif
+
+/** DNS do a name checking between the query and the response. */
+#ifndef DNS_DOES_NAME_CHECK
+#define DNS_DOES_NAME_CHECK 1
+#endif
+
+/** DNS use a local buffer if DNS_USES_STATIC_BUF=0, a static one if
+ DNS_USES_STATIC_BUF=1, or a dynamic one if DNS_USES_STATIC_BUF=2.
+ The buffer will be of size DNS_MSG_SIZE */
+#ifndef DNS_USES_STATIC_BUF
+#define DNS_USES_STATIC_BUF 1
+#endif
+
+/** DNS message max. size. Default value is RFC compliant. */
+#ifndef DNS_MSG_SIZE
+#define DNS_MSG_SIZE 512
+#endif
+
+/** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled,
+ * you have to define
+ * #define DNS_LOCAL_HOSTLIST_INIT {{"host1", 0x123}, {"host2", 0x234}}
+ * (an array of structs name/address, where address is an u32_t in network
+ * byte order).
+ *
+ * Instead, you can also use an external function:
+ * #define DNS_LOOKUP_LOCAL_EXTERN(x) extern u32_t my_lookup_function(const char *name)
+ * that returns the IP address or INADDR_NONE if not found.
+ */
+#ifndef DNS_LOCAL_HOSTLIST
+#define DNS_LOCAL_HOSTLIST 0
+#endif /* DNS_LOCAL_HOSTLIST */
+
+/** If this is turned on, the local host-list can be dynamically changed
+ * at runtime. */
+#ifndef DNS_LOCAL_HOSTLIST_IS_DYNAMIC
+#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0
+#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
+
+/*
+ ---------------------------------
+ ---------- UDP options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_UDP==1: Turn on UDP.
+ */
+#ifndef LWIP_UDP
+#define LWIP_UDP 1
+#endif
+
+/**
+ * LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP)
+ */
+#ifndef LWIP_UDPLITE
+#define LWIP_UDPLITE 0
+#endif
+
+/**
+ * UDP_TTL: Default Time-To-Live value.
+ */
+#ifndef UDP_TTL
+#define UDP_TTL (IP_DEFAULT_TTL)
+#endif
+
+/*
+ ---------------------------------
+ ---------- TCP options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_TCP==1: Turn on TCP.
+ */
+#ifndef LWIP_TCP
+#define LWIP_TCP 1
+#endif
+
+/**
+ * TCP_TTL: Default Time-To-Live value.
+ */
+#ifndef TCP_TTL
+#define TCP_TTL (IP_DEFAULT_TTL)
+#endif
+
+/**
+ * TCP_WND: The size of a TCP window. This must be at least
+ * (2 * TCP_MSS) for things to work well
+ */
+#ifndef TCP_WND
+#define TCP_WND 2048
+#endif
+
+/**
+ * TCP_MAXRTX: Maximum number of retransmissions of data segments.
+ */
+#ifndef TCP_MAXRTX
+#define TCP_MAXRTX 12
+#endif
+
+/**
+ * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments.
+ */
+#ifndef TCP_SYNMAXRTX
+#define TCP_SYNMAXRTX 6
+#endif
+
+/**
+ * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order.
+ * Define to 0 if your device is low on memory.
+ */
+#ifndef TCP_QUEUE_OOSEQ
+#define TCP_QUEUE_OOSEQ (LWIP_TCP)
+#endif
+
+/**
+ * TCP_MSS: TCP Maximum segment size. (default is 128, a *very*
+ * conservative default.)
+ * For the receive side, this MSS is advertised to the remote side
+ * when opening a connection. For the transmit size, this MSS sets
+ * an upper limit on the MSS advertised by the remote host.
+ */
+#ifndef TCP_MSS
+#define TCP_MSS 128
+#endif
+
+/**
+ * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really
+ * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which
+ * reflects the available reassembly buffer size at the remote host) and the
+ * largest size permitted by the IP layer" (RFC 1122)
+ * Setting this to 1 enables code that checks TCP_MSS against the MTU of the
+ * netif used for a connection and limits the MSS if it would be too big otherwise.
+ */
+#ifndef TCP_CALCULATE_EFF_SEND_MSS
+#define TCP_CALCULATE_EFF_SEND_MSS 1
+#endif
+
+
+/**
+ * TCP_SND_BUF: TCP sender buffer space (bytes).
+ */
+#ifndef TCP_SND_BUF
+#define TCP_SND_BUF 256
+#endif
+
+/**
+ * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
+ * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
+ */
+#ifndef TCP_SND_QUEUELEN
+#define TCP_SND_QUEUELEN (4 * (TCP_SND_BUF/TCP_MSS))
+#endif
+
+/**
+ * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than or equal
+ * to TCP_SND_BUF. It is the amount of space which must be available in the
+ * TCP snd_buf for select to return writable.
+ */
+#ifndef TCP_SNDLOWAT
+#define TCP_SNDLOWAT (TCP_SND_BUF/2)
+#endif
+
+/**
+ * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb.
+ */
+#ifndef TCP_LISTEN_BACKLOG
+#define TCP_LISTEN_BACKLOG 0
+#endif
+
+/**
+ * The maximum allowed backlog for TCP listen netconns.
+ * This backlog is used unless another is explicitly specified.
+ * 0xff is the maximum (u8_t).
+ */
+#ifndef TCP_DEFAULT_LISTEN_BACKLOG
+#define TCP_DEFAULT_LISTEN_BACKLOG 0xff
+#endif
+
+/**
+ * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option.
+ */
+#ifndef LWIP_TCP_TIMESTAMPS
+#define LWIP_TCP_TIMESTAMPS 0
+#endif
+
+/**
+ * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an
+ * explicit window update
+ */
+#ifndef TCP_WND_UPDATE_THRESHOLD
+#define TCP_WND_UPDATE_THRESHOLD (TCP_WND / 4)
+#endif
+
+/**
+ * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1.
+ * LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all
+ * events (accept, sent, etc) that happen in the system.
+ * LWIP_CALLBACK_API==1: The PCB callback function is called directly
+ * for the event.
+ */
+#ifndef LWIP_EVENT_API
+#define LWIP_EVENT_API 0
+#define LWIP_CALLBACK_API 1
+#else
+#define LWIP_EVENT_API 1
+#define LWIP_CALLBACK_API 0
+#endif
+
+
+/*
+ ----------------------------------
+ ---------- Pbuf options ----------
+ ----------------------------------
+*/
+/**
+ * PBUF_LINK_HLEN: the number of bytes that should be allocated for a
+ * link level header. The default is 14, the standard value for
+ * Ethernet.
+ */
+#ifndef PBUF_LINK_HLEN
+#define PBUF_LINK_HLEN 14
+#endif
+
+/**
+ * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is
+ * designed to accomodate single full size TCP frame in one pbuf, including
+ * TCP_MSS, IP header, and link header.
+ */
+#ifndef PBUF_POOL_BUFSIZE
+#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
+#endif
+
+/*
+ ------------------------------------------------
+ ---------- Network Interfaces options ----------
+ ------------------------------------------------
+*/
+/**
+ * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname
+ * field.
+ */
+#ifndef LWIP_NETIF_HOSTNAME
+#define LWIP_NETIF_HOSTNAME 0
+#endif
+
+/**
+ * LWIP_NETIF_API==1: Support netif api (in netifapi.c)
+ */
+#ifndef LWIP_NETIF_API
+#define LWIP_NETIF_API 0
+#endif
+
+/**
+ * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface
+ * changes its up/down status (i.e., due to DHCP IP acquistion)
+ */
+#ifndef LWIP_NETIF_STATUS_CALLBACK
+#define LWIP_NETIF_STATUS_CALLBACK 0
+#endif
+
+/**
+ * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface
+ * whenever the link changes (i.e., link down)
+ */
+#ifndef LWIP_NETIF_LINK_CALLBACK
+#define LWIP_NETIF_LINK_CALLBACK 0
+#endif
+
+/**
+ * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table
+ * indices) in struct netif. TCP and UDP can make use of this to prevent
+ * scanning the ARP table for every sent packet. While this is faster for big
+ * ARP tables or many concurrent connections, it might be counterproductive
+ * if you have a tiny ARP table or if there never are concurrent connections.
+ */
+#ifndef LWIP_NETIF_HWADDRHINT
+#define LWIP_NETIF_HWADDRHINT 0
+#endif
+
+/**
+ * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP
+ * address equal to the netif IP address, looping them back up the stack.
+ */
+#ifndef LWIP_NETIF_LOOPBACK
+#define LWIP_NETIF_LOOPBACK 0
+#endif
+
+/**
+ * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback
+ * sending for each netif (0 = disabled)
+ */
+#ifndef LWIP_LOOPBACK_MAX_PBUFS
+#define LWIP_LOOPBACK_MAX_PBUFS 0
+#endif
+
+/**
+ * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in
+ * the system, as netifs must change how they behave depending on this setting
+ * for the LWIP_NETIF_LOOPBACK option to work.
+ * Setting this is needed to avoid reentering non-reentrant functions like
+ * tcp_input().
+ * LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a
+ * multithreaded environment like tcpip.c. In this case, netif->input()
+ * is called directly.
+ * LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup.
+ * The packets are put on a list and netif_poll() must be called in
+ * the main application loop.
+ */
+#ifndef LWIP_NETIF_LOOPBACK_MULTITHREADING
+#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS)
+#endif
+
+/**
+ * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP tries to put all data
+ * to be sent into one single pbuf. This is for compatibility with DMA-enabled
+ * MACs that do not support scatter-gather.
+ * Beware that this might involve CPU-memcpy before transmitting that would not
+ * be needed without this flag! Use this only if you need to!
+ *
+ * @todo: TCP and IP-frag do not work with this, yet:
+ */
+#ifndef LWIP_NETIF_TX_SINGLE_PBUF
+#define LWIP_NETIF_TX_SINGLE_PBUF 0
+#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
+
+/*
+ ------------------------------------
+ ---------- LOOPIF options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
+ */
+#ifndef LWIP_HAVE_LOOPIF
+#define LWIP_HAVE_LOOPIF 0
+#endif
+
+/*
+ ------------------------------------
+ ---------- SLIPIF options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_HAVE_SLIPIF==1: Support slip interface and slipif.c
+ */
+#ifndef LWIP_HAVE_SLIPIF
+#define LWIP_HAVE_SLIPIF 0
+#endif
+
+/*
+ ------------------------------------
+ ---------- Thread options ----------
+ ------------------------------------
+*/
+/**
+ * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.
+ */
+#ifndef TCPIP_THREAD_NAME
+#define TCPIP_THREAD_NAME "tcpip_thread"
+#endif
+
+/**
+ * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef TCPIP_THREAD_STACKSIZE
+#define TCPIP_THREAD_STACKSIZE 0
+#endif
+
+/**
+ * TCPIP_THREAD_PRIO: The priority assigned to the main tcpip thread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef TCPIP_THREAD_PRIO
+#define TCPIP_THREAD_PRIO 1
+#endif
+
+/**
+ * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages
+ * The queue size value itself is platform-dependent, but is passed to
+ * sys_mbox_new() when tcpip_init is called.
+ */
+#ifndef TCPIP_MBOX_SIZE
+#define TCPIP_MBOX_SIZE 0
+#endif
+
+/**
+ * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread.
+ */
+#ifndef SLIPIF_THREAD_NAME
+#define SLIPIF_THREAD_NAME "slipif_loop"
+#endif
+
+/**
+ * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef SLIPIF_THREAD_STACKSIZE
+#define SLIPIF_THREAD_STACKSIZE 0
+#endif
+
+/**
+ * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef SLIPIF_THREAD_PRIO
+#define SLIPIF_THREAD_PRIO 1
+#endif
+
+/**
+ * PPP_THREAD_NAME: The name assigned to the pppMain thread.
+ */
+#ifndef PPP_THREAD_NAME
+#define PPP_THREAD_NAME "pppMain"
+#endif
+
+/**
+ * PPP_THREAD_STACKSIZE: The stack size used by the pppMain thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef PPP_THREAD_STACKSIZE
+#define PPP_THREAD_STACKSIZE 0
+#endif
+
+/**
+ * PPP_THREAD_PRIO: The priority assigned to the pppMain thread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef PPP_THREAD_PRIO
+#define PPP_THREAD_PRIO 1
+#endif
+
+/**
+ * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread.
+ */
+#ifndef DEFAULT_THREAD_NAME
+#define DEFAULT_THREAD_NAME "lwIP"
+#endif
+
+/**
+ * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef DEFAULT_THREAD_STACKSIZE
+#define DEFAULT_THREAD_STACKSIZE 0
+#endif
+
+/**
+ * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef DEFAULT_THREAD_PRIO
+#define DEFAULT_THREAD_PRIO 1
+#endif
+
+/**
+ * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
+ * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed
+ * to sys_mbox_new() when the recvmbox is created.
+ */
+#ifndef DEFAULT_RAW_RECVMBOX_SIZE
+#define DEFAULT_RAW_RECVMBOX_SIZE 0
+#endif
+
+/**
+ * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
+ * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed
+ * to sys_mbox_new() when the recvmbox is created.
+ */
+#ifndef DEFAULT_UDP_RECVMBOX_SIZE
+#define DEFAULT_UDP_RECVMBOX_SIZE 0
+#endif
+
+/**
+ * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
+ * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed
+ * to sys_mbox_new() when the recvmbox is created.
+ */
+#ifndef DEFAULT_TCP_RECVMBOX_SIZE
+#define DEFAULT_TCP_RECVMBOX_SIZE 0
+#endif
+
+/**
+ * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections.
+ * The queue size value itself is platform-dependent, but is passed to
+ * sys_mbox_new() when the acceptmbox is created.
+ */
+#ifndef DEFAULT_ACCEPTMBOX_SIZE
+#define DEFAULT_ACCEPTMBOX_SIZE 0
+#endif
+
+/*
+ ----------------------------------------------
+ ---------- Sequential layer options ----------
+ ----------------------------------------------
+*/
+/**
+ * LWIP_TCPIP_CORE_LOCKING: (EXPERIMENTAL!)
+ * Don't use it if you're not an active lwIP project member
+ */
+#ifndef LWIP_TCPIP_CORE_LOCKING
+#define LWIP_TCPIP_CORE_LOCKING 0
+#endif
+
+/**
+ * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
+ */
+#ifndef LWIP_NETCONN
+#define LWIP_NETCONN 1
+#endif
+
+/*
+ ------------------------------------
+ ---------- Socket options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
+ */
+#ifndef LWIP_SOCKET
+#define LWIP_SOCKET 1
+#endif
+
+/**
+ * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names.
+ * (only used if you use sockets.c)
+ */
+#ifndef LWIP_COMPAT_SOCKETS
+#define LWIP_COMPAT_SOCKETS 1
+#endif
+
+/**
+ * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names.
+ * Disable this option if you use a POSIX operating system that uses the same
+ * names (read, write & close). (only used if you use sockets.c)
+ */
+#ifndef LWIP_POSIX_SOCKETS_IO_NAMES
+#define LWIP_POSIX_SOCKETS_IO_NAMES 1
+#endif
+
+/**
+ * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT
+ * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set
+ * in seconds. (does not require sockets.c, and will affect tcp.c)
+ */
+#ifndef LWIP_TCP_KEEPALIVE
+#define LWIP_TCP_KEEPALIVE 0
+#endif
+
+/**
+ * LWIP_SO_RCVTIMEO==1: Enable SO_RCVTIMEO processing.
+ */
+#ifndef LWIP_SO_RCVTIMEO
+#define LWIP_SO_RCVTIMEO 0
+#endif
+
+/**
+ * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing.
+ */
+#ifndef LWIP_SO_RCVBUF
+#define LWIP_SO_RCVBUF 0
+#endif
+
+/**
+ * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize.
+ */
+#ifndef RECV_BUFSIZE_DEFAULT
+#define RECV_BUFSIZE_DEFAULT INT_MAX
+#endif
+
+/**
+ * SO_REUSE==1: Enable SO_REUSEADDR and SO_REUSEPORT options. DO NOT USE!
+ */
+#ifndef SO_REUSE
+#define SO_REUSE 0
+#endif
+
+/*
+ ----------------------------------------
+ ---------- Statistics options ----------
+ ----------------------------------------
+*/
+/**
+ * LWIP_STATS==1: Enable statistics collection in lwip_stats.
+ */
+#ifndef LWIP_STATS
+#define LWIP_STATS 1
+#endif
+
+#if LWIP_STATS
+
+/**
+ * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions.
+ */
+#ifndef LWIP_STATS_DISPLAY
+#define LWIP_STATS_DISPLAY 0
+#endif
+
+/**
+ * LINK_STATS==1: Enable link stats.
+ */
+#ifndef LINK_STATS
+#define LINK_STATS 1
+#endif
+
+/**
+ * ETHARP_STATS==1: Enable etharp stats.
+ */
+#ifndef ETHARP_STATS
+#define ETHARP_STATS (LWIP_ARP)
+#endif
+
+/**
+ * IP_STATS==1: Enable IP stats.
+ */
+#ifndef IP_STATS
+#define IP_STATS 1
+#endif
+
+/**
+ * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is
+ * on if using either frag or reass.
+ */
+#ifndef IPFRAG_STATS
+#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG)
+#endif
+
+/**
+ * ICMP_STATS==1: Enable ICMP stats.
+ */
+#ifndef ICMP_STATS
+#define ICMP_STATS 1
+#endif
+
+/**
+ * IGMP_STATS==1: Enable IGMP stats.
+ */
+#ifndef IGMP_STATS
+#define IGMP_STATS (LWIP_IGMP)
+#endif
+
+/**
+ * UDP_STATS==1: Enable UDP stats. Default is on if
+ * UDP enabled, otherwise off.
+ */
+#ifndef UDP_STATS
+#define UDP_STATS (LWIP_UDP)
+#endif
+
+/**
+ * TCP_STATS==1: Enable TCP stats. Default is on if TCP
+ * enabled, otherwise off.
+ */
+#ifndef TCP_STATS
+#define TCP_STATS (LWIP_TCP)
+#endif
+
+/**
+ * MEM_STATS==1: Enable mem.c stats.
+ */
+#ifndef MEM_STATS
+#define MEM_STATS 1
+#endif
+
+/**
+ * MEMP_STATS==1: Enable memp.c pool stats.
+ */
+#ifndef MEMP_STATS
+#define MEMP_STATS 1
+#endif
+
+/**
+ * SYS_STATS==1: Enable system stats (sem and mbox counts, etc).
+ */
+#ifndef SYS_STATS
+#define SYS_STATS 1
+#endif
+
+#else
+
+#define LINK_STATS 0
+#define IP_STATS 0
+#define IPFRAG_STATS 0
+#define ICMP_STATS 0
+#define IGMP_STATS 0
+#define UDP_STATS 0
+#define TCP_STATS 0
+#define MEM_STATS 0
+#define MEMP_STATS 0
+#define SYS_STATS 0
+#define LWIP_STATS_DISPLAY 0
+
+#endif /* LWIP_STATS */
+
+/*
+ ---------------------------------
+ ---------- PPP options ----------
+ ---------------------------------
+*/
+/**
+ * PPP_SUPPORT==1: Enable PPP.
+ */
+#ifndef PPP_SUPPORT
+#define PPP_SUPPORT 0
+#endif
+
+/**
+ * PPPOE_SUPPORT==1: Enable PPP Over Ethernet
+ */
+#ifndef PPPOE_SUPPORT
+#define PPPOE_SUPPORT 0
+#endif
+
+/**
+ * PPPOS_SUPPORT==1: Enable PPP Over Serial
+ */
+#ifndef PPPOS_SUPPORT
+#define PPPOS_SUPPORT PPP_SUPPORT
+#endif
+
+#if PPP_SUPPORT
+
+/**
+ * NUM_PPP: Max PPP sessions.
+ */
+#ifndef NUM_PPP
+#define NUM_PPP 1
+#endif
+
+/**
+ * PAP_SUPPORT==1: Support PAP.
+ */
+#ifndef PAP_SUPPORT
+#define PAP_SUPPORT 0
+#endif
+
+/**
+ * CHAP_SUPPORT==1: Support CHAP.
+ */
+#ifndef CHAP_SUPPORT
+#define CHAP_SUPPORT 0
+#endif
+
+/**
+ * MSCHAP_SUPPORT==1: Support MSCHAP. CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef MSCHAP_SUPPORT
+#define MSCHAP_SUPPORT 0
+#endif
+
+/**
+ * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef CBCP_SUPPORT
+#define CBCP_SUPPORT 0
+#endif
+
+/**
+ * CCP_SUPPORT==1: Support CCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef CCP_SUPPORT
+#define CCP_SUPPORT 0
+#endif
+
+/**
+ * VJ_SUPPORT==1: Support VJ header compression.
+ */
+#ifndef VJ_SUPPORT
+#define VJ_SUPPORT 0
+#endif
+
+/**
+ * MD5_SUPPORT==1: Support MD5 (see also CHAP).
+ */
+#ifndef MD5_SUPPORT
+#define MD5_SUPPORT 0
+#endif
+
+/*
+ * Timeouts
+ */
+#ifndef FSM_DEFTIMEOUT
+#define FSM_DEFTIMEOUT 6 /* Timeout time in seconds */
+#endif
+
+#ifndef FSM_DEFMAXTERMREQS
+#define FSM_DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */
+#endif
+
+#ifndef FSM_DEFMAXCONFREQS
+#define FSM_DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */
+#endif
+
+#ifndef FSM_DEFMAXNAKLOOPS
+#define FSM_DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */
+#endif
+
+#ifndef UPAP_DEFTIMEOUT
+#define UPAP_DEFTIMEOUT 6 /* Timeout (seconds) for retransmitting req */
+#endif
+
+#ifndef UPAP_DEFREQTIME
+#define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */
+#endif
+
+#ifndef CHAP_DEFTIMEOUT
+#define CHAP_DEFTIMEOUT 6 /* Timeout time in seconds */
+#endif
+
+#ifndef CHAP_DEFTRANSMITS
+#define CHAP_DEFTRANSMITS 10 /* max # times to send challenge */
+#endif
+
+/* Interval in seconds between keepalive echo requests, 0 to disable. */
+#ifndef LCP_ECHOINTERVAL
+#define LCP_ECHOINTERVAL 0
+#endif
+
+/* Number of unanswered echo requests before failure. */
+#ifndef LCP_MAXECHOFAILS
+#define LCP_MAXECHOFAILS 3
+#endif
+
+/* Max Xmit idle time (in jiffies) before resend flag char. */
+#ifndef PPP_MAXIDLEFLAG
+#define PPP_MAXIDLEFLAG 100
+#endif
+
+/*
+ * Packet sizes
+ *
+ * Note - lcp shouldn't be allowed to negotiate stuff outside these
+ * limits. See lcp.h in the pppd directory.
+ * (XXX - these constants should simply be shared by lcp.c instead
+ * of living in lcp.h)
+ */
+#define PPP_MTU 1500 /* Default MTU (size of Info field) */
+#ifndef PPP_MAXMTU
+/* #define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN) */
+#define PPP_MAXMTU 1500 /* Largest MTU we allow */
+#endif
+#define PPP_MINMTU 64
+#define PPP_MRU 1500 /* default MRU = max length of info field */
+#define PPP_MAXMRU 1500 /* Largest MRU we allow */
+#ifndef PPP_DEFMRU
+#define PPP_DEFMRU 296 /* Try for this */
+#endif
+#define PPP_MINMRU 128 /* No MRUs below this */
+
+
+#define MAXNAMELEN 256 /* max length of hostname or name for auth */
+#define MAXSECRETLEN 256 /* max length of password or secret */
+
+#endif /* PPP_SUPPORT */
+
+/*
+ --------------------------------------
+ ---------- Checksum options ----------
+ --------------------------------------
+*/
+/**
+ * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.
+ */
+#ifndef CHECKSUM_GEN_IP
+#define CHECKSUM_GEN_IP 1
+#endif
+
+/**
+ * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.
+ */
+#ifndef CHECKSUM_GEN_UDP
+#define CHECKSUM_GEN_UDP 1
+#endif
+
+/**
+ * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.
+ */
+#ifndef CHECKSUM_GEN_TCP
+#define CHECKSUM_GEN_TCP 1
+#endif
+
+/**
+ * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.
+ */
+#ifndef CHECKSUM_CHECK_IP
+#define CHECKSUM_CHECK_IP 1
+#endif
+
+/**
+ * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.
+ */
+#ifndef CHECKSUM_CHECK_UDP
+#define CHECKSUM_CHECK_UDP 1
+#endif
+
+/**
+ * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.
+ */
+#ifndef CHECKSUM_CHECK_TCP
+#define CHECKSUM_CHECK_TCP 1
+#endif
+
+/*
+ ---------------------------------------
+ ---------- Debugging options ----------
+ ---------------------------------------
+*/
+/**
+ * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is
+ * compared against this value. If it is smaller, then debugging
+ * messages are written.
+ */
+#ifndef LWIP_DBG_MIN_LEVEL
+#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_OFF
+#endif
+
+/**
+ * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable
+ * debug messages of certain types.
+ */
+#ifndef LWIP_DBG_TYPES_ON
+#define LWIP_DBG_TYPES_ON LWIP_DBG_ON
+#endif
+
+/**
+ * ETHARP_DEBUG: Enable debugging in etharp.c.
+ */
+#ifndef ETHARP_DEBUG
+#define ETHARP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * NETIF_DEBUG: Enable debugging in netif.c.
+ */
+#ifndef NETIF_DEBUG
+#define NETIF_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * PBUF_DEBUG: Enable debugging in pbuf.c.
+ */
+#ifndef PBUF_DEBUG
+#define PBUF_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * API_LIB_DEBUG: Enable debugging in api_lib.c.
+ */
+#ifndef API_LIB_DEBUG
+#define API_LIB_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * API_MSG_DEBUG: Enable debugging in api_msg.c.
+ */
+#ifndef API_MSG_DEBUG
+#define API_MSG_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SOCKETS_DEBUG: Enable debugging in sockets.c.
+ */
+#ifndef SOCKETS_DEBUG
+#define SOCKETS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * ICMP_DEBUG: Enable debugging in icmp.c.
+ */
+#ifndef ICMP_DEBUG
+#define ICMP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * IGMP_DEBUG: Enable debugging in igmp.c.
+ */
+#ifndef IGMP_DEBUG
+#define IGMP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * INET_DEBUG: Enable debugging in inet.c.
+ */
+#ifndef INET_DEBUG
+#define INET_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * IP_DEBUG: Enable debugging for IP.
+ */
+#ifndef IP_DEBUG
+#define IP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass.
+ */
+#ifndef IP_REASS_DEBUG
+#define IP_REASS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * RAW_DEBUG: Enable debugging in raw.c.
+ */
+#ifndef RAW_DEBUG
+#define RAW_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * MEM_DEBUG: Enable debugging in mem.c.
+ */
+#ifndef MEM_DEBUG
+#define MEM_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * MEMP_DEBUG: Enable debugging in memp.c.
+ */
+#ifndef MEMP_DEBUG
+#define MEMP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SYS_DEBUG: Enable debugging in sys.c.
+ */
+#ifndef SYS_DEBUG
+#define SYS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_DEBUG: Enable debugging for TCP.
+ */
+#ifndef TCP_DEBUG
+#define TCP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug.
+ */
+#ifndef TCP_INPUT_DEBUG
+#define TCP_INPUT_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit.
+ */
+#ifndef TCP_FR_DEBUG
+#define TCP_FR_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit
+ * timeout.
+ */
+#ifndef TCP_RTO_DEBUG
+#define TCP_RTO_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_CWND_DEBUG: Enable debugging for TCP congestion window.
+ */
+#ifndef TCP_CWND_DEBUG
+#define TCP_CWND_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating.
+ */
+#ifndef TCP_WND_DEBUG
+#define TCP_WND_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions.
+ */
+#ifndef TCP_OUTPUT_DEBUG
+#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_RST_DEBUG: Enable debugging for TCP with the RST message.
+ */
+#ifndef TCP_RST_DEBUG
+#define TCP_RST_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths.
+ */
+#ifndef TCP_QLEN_DEBUG
+#define TCP_QLEN_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * UDP_DEBUG: Enable debugging in UDP.
+ */
+#ifndef UDP_DEBUG
+#define UDP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCPIP_DEBUG: Enable debugging in tcpip.c.
+ */
+#ifndef TCPIP_DEBUG
+#define TCPIP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * PPP_DEBUG: Enable debugging for PPP.
+ */
+#ifndef PPP_DEBUG
+#define PPP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SLIP_DEBUG: Enable debugging in slipif.c.
+ */
+#ifndef SLIP_DEBUG
+#define SLIP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * DHCP_DEBUG: Enable debugging in dhcp.c.
+ */
+#ifndef DHCP_DEBUG
+#define DHCP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * AUTOIP_DEBUG: Enable debugging in autoip.c.
+ */
+#ifndef AUTOIP_DEBUG
+#define AUTOIP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SNMP_MSG_DEBUG: Enable debugging for SNMP messages.
+ */
+#ifndef SNMP_MSG_DEBUG
+#define SNMP_MSG_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs.
+ */
+#ifndef SNMP_MIB_DEBUG
+#define SNMP_MIB_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * DNS_DEBUG: Enable debugging for DNS.
+ */
+#ifndef DNS_DEBUG
+#define DNS_DEBUG LWIP_DBG_OFF
+#endif
+
+#endif /* __LWIP_OPT_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/pbuf.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/pbuf.h
new file mode 100644
index 000000000..8380f65da
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/pbuf.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __LWIP_PBUF_H__
+#define __LWIP_PBUF_H__
+
+#include "lwip/opt.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define PBUF_TRANSPORT_HLEN 20
+#define PBUF_IP_HLEN 20
+
+typedef enum {
+ PBUF_TRANSPORT,
+ PBUF_IP,
+ PBUF_LINK,
+ PBUF_RAW
+} pbuf_layer;
+
+typedef enum {
+ PBUF_RAM, /* pbuf data is stored in RAM */
+ PBUF_ROM, /* pbuf data is stored in ROM */
+ PBUF_REF, /* pbuf comes from the pbuf pool */
+ PBUF_POOL /* pbuf payload refers to RAM */
+} pbuf_type;
+
+
+/** indicates this packet's data should be immediately passed to the application */
+#define PBUF_FLAG_PUSH 0x01U
+
+struct pbuf {
+ /** next pbuf in singly linked pbuf chain */
+ struct pbuf *next;
+
+ /** pointer to the actual data in the buffer */
+ void *payload;
+
+ /**
+ * total length of this buffer and all next buffers in chain
+ * belonging to the same packet.
+ *
+ * For non-queue packet chains this is the invariant:
+ * p->tot_len == p->len + (p->next? p->next->tot_len: 0)
+ */
+ u16_t tot_len;
+
+ /** length of this buffer */
+ u16_t len;
+
+ /** pbuf_type as u8_t instead of enum to save space */
+ u8_t /*pbuf_type*/ type;
+
+ /** misc flags */
+ u8_t flags;
+
+ /**
+ * the reference count always equals the number of pointers
+ * that refer to this pbuf. This can be pointers from an application,
+ * the stack itself, or pbuf->next pointers from a chain.
+ */
+ u16_t ref;
+
+};
+
+/* Initializes the pbuf module. This call is empty for now, but may not be in future. */
+#define pbuf_init()
+
+struct pbuf *pbuf_alloc(pbuf_layer l, u16_t size, pbuf_type type);
+void pbuf_realloc(struct pbuf *p, u16_t size);
+u8_t pbuf_header(struct pbuf *p, s16_t header_size);
+void pbuf_ref(struct pbuf *p);
+void pbuf_ref_chain(struct pbuf *p);
+u8_t pbuf_free(struct pbuf *p);
+u8_t pbuf_clen(struct pbuf *p);
+void pbuf_cat(struct pbuf *head, struct pbuf *tail);
+void pbuf_chain(struct pbuf *head, struct pbuf *tail);
+struct pbuf *pbuf_dechain(struct pbuf *p);
+err_t pbuf_copy(struct pbuf *p_to, struct pbuf *p_from);
+u16_t pbuf_copy_partial(struct pbuf *p, void *dataptr, u16_t len, u16_t offset);
+err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len);
+struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_PBUF_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/raw.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/raw.h
new file mode 100644
index 000000000..20b0a11bb
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/raw.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_RAW_H__
+#define __LWIP_RAW_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/inet.h"
+#include "lwip/ip.h"
+#include "lwip/ip_addr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct raw_pcb {
+/* Common members of all PCB types */
+ IP_PCB;
+
+ struct raw_pcb *next;
+
+ u8_t protocol;
+
+ /* receive callback function
+ * @param arg user supplied argument (raw_pcb.recv_arg)
+ * @param pcb the raw_pcb which received data
+ * @param p the packet buffer that was received
+ * @param addr the remote IP address from which the packet was received
+ * @return 1 if the packet was 'eaten' (aka. deleted),
+ * 0 if the packet lives on
+ * If returning 1, the callback is responsible for freeing the pbuf
+ * if it's not used any more.
+ */
+ u8_t (* recv)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
+ struct ip_addr *addr);
+ /* user-supplied argument for the recv callback */
+ void *recv_arg;
+};
+
+/* The following functions is the application layer interface to the
+ RAW code. */
+struct raw_pcb * raw_new (u8_t proto);
+void raw_remove (struct raw_pcb *pcb);
+err_t raw_bind (struct raw_pcb *pcb, struct ip_addr *ipaddr);
+err_t raw_connect (struct raw_pcb *pcb, struct ip_addr *ipaddr);
+
+void raw_recv (struct raw_pcb *pcb,
+ u8_t (* recv)(void *arg, struct raw_pcb *pcb,
+ struct pbuf *p,
+ struct ip_addr *addr),
+ void *recv_arg);
+err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, struct ip_addr *ipaddr);
+err_t raw_send (struct raw_pcb *pcb, struct pbuf *p);
+
+/* The following functions are the lower layer interface to RAW. */
+u8_t raw_input (struct pbuf *p, struct netif *inp);
+#define raw_init() /* Compatibility define, not init needed. */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_RAW */
+
+#endif /* __LWIP_RAW_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sio.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sio.h
new file mode 100644
index 000000000..7d9162e49
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sio.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ */
+
+/*
+ * This is the interface to the platform specific serial IO module
+ * It needs to be implemented by those platforms which need SLIP or PPP
+ */
+
+#ifndef __SIO_H__
+#define __SIO_H__
+
+#include "lwip/arch.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* If you want to define sio_fd_t elsewhere or differently,
+ define this in your cc.h file. */
+#ifndef __sio_fd_t_defined
+typedef void * sio_fd_t;
+#endif
+
+/* The following functions can be defined to something else in your cc.h file
+ or be implemented in your custom sio.c file. */
+
+#ifndef sio_open
+sio_fd_t sio_open(u8_t);
+#endif
+
+#ifndef sio_send
+void sio_send(u8_t, sio_fd_t);
+#endif
+
+#ifndef sio_recv
+u8_t sio_recv(sio_fd_t);
+#endif
+
+#ifndef sio_read
+u32_t sio_read(sio_fd_t, u8_t *, u32_t);
+#endif
+
+#ifndef sio_write
+u32_t sio_write(sio_fd_t, u8_t *, u32_t);
+#endif
+
+#ifndef sio_read_abort
+void sio_read_abort(sio_fd_t);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SIO_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp.h
new file mode 100644
index 000000000..dd03d5d70
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp.h
@@ -0,0 +1,364 @@
+/*
+ * Copyright (c) 2001, 2002 Leon Woestenberg <leon.woestenberg@axon.tv>
+ * Copyright (c) 2001, 2002 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Leon Woestenberg <leon.woestenberg@axon.tv>
+ *
+ */
+#ifndef __LWIP_SNMP_H__
+#define __LWIP_SNMP_H__
+
+#include "lwip/opt.h"
+#include "lwip/netif.h"
+#include "lwip/udp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @see RFC1213, "MIB-II, 6. Definitions"
+ */
+enum snmp_ifType {
+ snmp_ifType_other=1, /* none of the following */
+ snmp_ifType_regular1822,
+ snmp_ifType_hdh1822,
+ snmp_ifType_ddn_x25,
+ snmp_ifType_rfc877_x25,
+ snmp_ifType_ethernet_csmacd,
+ snmp_ifType_iso88023_csmacd,
+ snmp_ifType_iso88024_tokenBus,
+ snmp_ifType_iso88025_tokenRing,
+ snmp_ifType_iso88026_man,
+ snmp_ifType_starLan,
+ snmp_ifType_proteon_10Mbit,
+ snmp_ifType_proteon_80Mbit,
+ snmp_ifType_hyperchannel,
+ snmp_ifType_fddi,
+ snmp_ifType_lapb,
+ snmp_ifType_sdlc,
+ snmp_ifType_ds1, /* T-1 */
+ snmp_ifType_e1, /* european equiv. of T-1 */
+ snmp_ifType_basicISDN,
+ snmp_ifType_primaryISDN, /* proprietary serial */
+ snmp_ifType_propPointToPointSerial,
+ snmp_ifType_ppp,
+ snmp_ifType_softwareLoopback,
+ snmp_ifType_eon, /* CLNP over IP [11] */
+ snmp_ifType_ethernet_3Mbit,
+ snmp_ifType_nsip, /* XNS over IP */
+ snmp_ifType_slip, /* generic SLIP */
+ snmp_ifType_ultra, /* ULTRA technologies */
+ snmp_ifType_ds3, /* T-3 */
+ snmp_ifType_sip, /* SMDS */
+ snmp_ifType_frame_relay
+};
+
+#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
+
+/** SNMP "sysuptime" Interval */
+#define SNMP_SYSUPTIME_INTERVAL 10
+
+/** fixed maximum length for object identifier type */
+#define LWIP_SNMP_OBJ_ID_LEN 32
+
+/** internal object identifier representation */
+struct snmp_obj_id
+{
+ u8_t len;
+ s32_t id[LWIP_SNMP_OBJ_ID_LEN];
+};
+
+/* system */
+void snmp_set_sysdesr(u8_t* str, u8_t* len);
+void snmp_set_sysobjid(struct snmp_obj_id *oid);
+void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid);
+void snmp_inc_sysuptime(void);
+void snmp_add_sysuptime(u32_t value);
+void snmp_get_sysuptime(u32_t *value);
+void snmp_set_syscontact(u8_t *ocstr, u8_t *ocstrlen);
+void snmp_set_sysname(u8_t *ocstr, u8_t *ocstrlen);
+void snmp_set_syslocation(u8_t *ocstr, u8_t *ocstrlen);
+
+/* network interface */
+void snmp_add_ifinoctets(struct netif *ni, u32_t value);
+void snmp_inc_ifinucastpkts(struct netif *ni);
+void snmp_inc_ifinnucastpkts(struct netif *ni);
+void snmp_inc_ifindiscards(struct netif *ni);
+void snmp_add_ifoutoctets(struct netif *ni, u32_t value);
+void snmp_inc_ifoutucastpkts(struct netif *ni);
+void snmp_inc_ifoutnucastpkts(struct netif *ni);
+void snmp_inc_ifoutdiscards(struct netif *ni);
+void snmp_inc_iflist(void);
+void snmp_dec_iflist(void);
+
+/* ARP (for atTable and ipNetToMediaTable) */
+void snmp_insert_arpidx_tree(struct netif *ni, struct ip_addr *ip);
+void snmp_delete_arpidx_tree(struct netif *ni, struct ip_addr *ip);
+
+/* IP */
+void snmp_inc_ipinreceives(void);
+void snmp_inc_ipinhdrerrors(void);
+void snmp_inc_ipinaddrerrors(void);
+void snmp_inc_ipforwdatagrams(void);
+void snmp_inc_ipinunknownprotos(void);
+void snmp_inc_ipindiscards(void);
+void snmp_inc_ipindelivers(void);
+void snmp_inc_ipoutrequests(void);
+void snmp_inc_ipoutdiscards(void);
+void snmp_inc_ipoutnoroutes(void);
+void snmp_inc_ipreasmreqds(void);
+void snmp_inc_ipreasmoks(void);
+void snmp_inc_ipreasmfails(void);
+void snmp_inc_ipfragoks(void);
+void snmp_inc_ipfragfails(void);
+void snmp_inc_ipfragcreates(void);
+void snmp_inc_iproutingdiscards(void);
+void snmp_insert_ipaddridx_tree(struct netif *ni);
+void snmp_delete_ipaddridx_tree(struct netif *ni);
+void snmp_insert_iprteidx_tree(u8_t dflt, struct netif *ni);
+void snmp_delete_iprteidx_tree(u8_t dflt, struct netif *ni);
+
+/* ICMP */
+void snmp_inc_icmpinmsgs(void);
+void snmp_inc_icmpinerrors(void);
+void snmp_inc_icmpindestunreachs(void);
+void snmp_inc_icmpintimeexcds(void);
+void snmp_inc_icmpinparmprobs(void);
+void snmp_inc_icmpinsrcquenchs(void);
+void snmp_inc_icmpinredirects(void);
+void snmp_inc_icmpinechos(void);
+void snmp_inc_icmpinechoreps(void);
+void snmp_inc_icmpintimestamps(void);
+void snmp_inc_icmpintimestampreps(void);
+void snmp_inc_icmpinaddrmasks(void);
+void snmp_inc_icmpinaddrmaskreps(void);
+void snmp_inc_icmpoutmsgs(void);
+void snmp_inc_icmpouterrors(void);
+void snmp_inc_icmpoutdestunreachs(void);
+void snmp_inc_icmpouttimeexcds(void);
+void snmp_inc_icmpoutparmprobs(void);
+void snmp_inc_icmpoutsrcquenchs(void);
+void snmp_inc_icmpoutredirects(void);
+void snmp_inc_icmpoutechos(void);
+void snmp_inc_icmpoutechoreps(void);
+void snmp_inc_icmpouttimestamps(void);
+void snmp_inc_icmpouttimestampreps(void);
+void snmp_inc_icmpoutaddrmasks(void);
+void snmp_inc_icmpoutaddrmaskreps(void);
+
+/* TCP */
+void snmp_inc_tcpactiveopens(void);
+void snmp_inc_tcppassiveopens(void);
+void snmp_inc_tcpattemptfails(void);
+void snmp_inc_tcpestabresets(void);
+void snmp_inc_tcpinsegs(void);
+void snmp_inc_tcpoutsegs(void);
+void snmp_inc_tcpretranssegs(void);
+void snmp_inc_tcpinerrs(void);
+void snmp_inc_tcpoutrsts(void);
+
+/* UDP */
+void snmp_inc_udpindatagrams(void);
+void snmp_inc_udpnoports(void);
+void snmp_inc_udpinerrors(void);
+void snmp_inc_udpoutdatagrams(void);
+void snmp_insert_udpidx_tree(struct udp_pcb *pcb);
+void snmp_delete_udpidx_tree(struct udp_pcb *pcb);
+
+/* SNMP */
+void snmp_inc_snmpinpkts(void);
+void snmp_inc_snmpoutpkts(void);
+void snmp_inc_snmpinbadversions(void);
+void snmp_inc_snmpinbadcommunitynames(void);
+void snmp_inc_snmpinbadcommunityuses(void);
+void snmp_inc_snmpinasnparseerrs(void);
+void snmp_inc_snmpintoobigs(void);
+void snmp_inc_snmpinnosuchnames(void);
+void snmp_inc_snmpinbadvalues(void);
+void snmp_inc_snmpinreadonlys(void);
+void snmp_inc_snmpingenerrs(void);
+void snmp_add_snmpintotalreqvars(u8_t value);
+void snmp_add_snmpintotalsetvars(u8_t value);
+void snmp_inc_snmpingetrequests(void);
+void snmp_inc_snmpingetnexts(void);
+void snmp_inc_snmpinsetrequests(void);
+void snmp_inc_snmpingetresponses(void);
+void snmp_inc_snmpintraps(void);
+void snmp_inc_snmpouttoobigs(void);
+void snmp_inc_snmpoutnosuchnames(void);
+void snmp_inc_snmpoutbadvalues(void);
+void snmp_inc_snmpoutgenerrs(void);
+void snmp_inc_snmpoutgetrequests(void);
+void snmp_inc_snmpoutgetnexts(void);
+void snmp_inc_snmpoutsetrequests(void);
+void snmp_inc_snmpoutgetresponses(void);
+void snmp_inc_snmpouttraps(void);
+void snmp_get_snmpgrpid_ptr(struct snmp_obj_id **oid);
+void snmp_set_snmpenableauthentraps(u8_t *value);
+void snmp_get_snmpenableauthentraps(u8_t *value);
+
+/* LWIP_SNMP support not available */
+/* define everything to be empty */
+#else
+
+/* system */
+#define snmp_set_sysdesr(str, len)
+#define snmp_set_sysobjid(oid);
+#define snmp_get_sysobjid_ptr(oid)
+#define snmp_inc_sysuptime()
+#define snmp_add_sysuptime(value)
+#define snmp_get_sysuptime(value)
+#define snmp_set_syscontact(ocstr, ocstrlen);
+#define snmp_set_sysname(ocstr, ocstrlen);
+#define snmp_set_syslocation(ocstr, ocstrlen);
+
+/* network interface */
+#define snmp_add_ifinoctets(ni,value)
+#define snmp_inc_ifinucastpkts(ni)
+#define snmp_inc_ifinnucastpkts(ni)
+#define snmp_inc_ifindiscards(ni)
+#define snmp_add_ifoutoctets(ni,value)
+#define snmp_inc_ifoutucastpkts(ni)
+#define snmp_inc_ifoutnucastpkts(ni)
+#define snmp_inc_ifoutdiscards(ni)
+#define snmp_inc_iflist()
+#define snmp_dec_iflist()
+
+/* ARP */
+#define snmp_insert_arpidx_tree(ni,ip)
+#define snmp_delete_arpidx_tree(ni,ip)
+
+/* IP */
+#define snmp_inc_ipinreceives()
+#define snmp_inc_ipinhdrerrors()
+#define snmp_inc_ipinaddrerrors()
+#define snmp_inc_ipforwdatagrams()
+#define snmp_inc_ipinunknownprotos()
+#define snmp_inc_ipindiscards()
+#define snmp_inc_ipindelivers()
+#define snmp_inc_ipoutrequests()
+#define snmp_inc_ipoutdiscards()
+#define snmp_inc_ipoutnoroutes()
+#define snmp_inc_ipreasmreqds()
+#define snmp_inc_ipreasmoks()
+#define snmp_inc_ipreasmfails()
+#define snmp_inc_ipfragoks()
+#define snmp_inc_ipfragfails()
+#define snmp_inc_ipfragcreates()
+#define snmp_inc_iproutingdiscards()
+#define snmp_insert_ipaddridx_tree(ni)
+#define snmp_delete_ipaddridx_tree(ni)
+#define snmp_insert_iprteidx_tree(dflt, ni)
+#define snmp_delete_iprteidx_tree(dflt, ni)
+
+/* ICMP */
+#define snmp_inc_icmpinmsgs()
+#define snmp_inc_icmpinerrors()
+#define snmp_inc_icmpindestunreachs()
+#define snmp_inc_icmpintimeexcds()
+#define snmp_inc_icmpinparmprobs()
+#define snmp_inc_icmpinsrcquenchs()
+#define snmp_inc_icmpinredirects()
+#define snmp_inc_icmpinechos()
+#define snmp_inc_icmpinechoreps()
+#define snmp_inc_icmpintimestamps()
+#define snmp_inc_icmpintimestampreps()
+#define snmp_inc_icmpinaddrmasks()
+#define snmp_inc_icmpinaddrmaskreps()
+#define snmp_inc_icmpoutmsgs()
+#define snmp_inc_icmpouterrors()
+#define snmp_inc_icmpoutdestunreachs()
+#define snmp_inc_icmpouttimeexcds()
+#define snmp_inc_icmpoutparmprobs()
+#define snmp_inc_icmpoutsrcquenchs()
+#define snmp_inc_icmpoutredirects()
+#define snmp_inc_icmpoutechos()
+#define snmp_inc_icmpoutechoreps()
+#define snmp_inc_icmpouttimestamps()
+#define snmp_inc_icmpouttimestampreps()
+#define snmp_inc_icmpoutaddrmasks()
+#define snmp_inc_icmpoutaddrmaskreps()
+/* TCP */
+#define snmp_inc_tcpactiveopens()
+#define snmp_inc_tcppassiveopens()
+#define snmp_inc_tcpattemptfails()
+#define snmp_inc_tcpestabresets()
+#define snmp_inc_tcpinsegs()
+#define snmp_inc_tcpoutsegs()
+#define snmp_inc_tcpretranssegs()
+#define snmp_inc_tcpinerrs()
+#define snmp_inc_tcpoutrsts()
+
+/* UDP */
+#define snmp_inc_udpindatagrams()
+#define snmp_inc_udpnoports()
+#define snmp_inc_udpinerrors()
+#define snmp_inc_udpoutdatagrams()
+#define snmp_insert_udpidx_tree(pcb)
+#define snmp_delete_udpidx_tree(pcb)
+
+/* SNMP */
+#define snmp_inc_snmpinpkts()
+#define snmp_inc_snmpoutpkts()
+#define snmp_inc_snmpinbadversions()
+#define snmp_inc_snmpinbadcommunitynames()
+#define snmp_inc_snmpinbadcommunityuses()
+#define snmp_inc_snmpinasnparseerrs()
+#define snmp_inc_snmpintoobigs()
+#define snmp_inc_snmpinnosuchnames()
+#define snmp_inc_snmpinbadvalues()
+#define snmp_inc_snmpinreadonlys()
+#define snmp_inc_snmpingenerrs()
+#define snmp_add_snmpintotalreqvars(value)
+#define snmp_add_snmpintotalsetvars(value)
+#define snmp_inc_snmpingetrequests()
+#define snmp_inc_snmpingetnexts()
+#define snmp_inc_snmpinsetrequests()
+#define snmp_inc_snmpingetresponses()
+#define snmp_inc_snmpintraps()
+#define snmp_inc_snmpouttoobigs()
+#define snmp_inc_snmpoutnosuchnames()
+#define snmp_inc_snmpoutbadvalues()
+#define snmp_inc_snmpoutgenerrs()
+#define snmp_inc_snmpoutgetrequests()
+#define snmp_inc_snmpoutgetnexts()
+#define snmp_inc_snmpoutsetrequests()
+#define snmp_inc_snmpoutgetresponses()
+#define snmp_inc_snmpouttraps()
+#define snmp_get_snmpgrpid_ptr(oid)
+#define snmp_set_snmpenableauthentraps(value)
+#define snmp_get_snmpenableauthentraps(value)
+
+#endif /* LWIP_SNMP */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_SNMP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h
new file mode 100644
index 000000000..8a602881f
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h
@@ -0,0 +1,101 @@
+/**
+ * @file
+ * Abstract Syntax Notation One (ISO 8824, 8825) codec.
+ */
+
+/*
+ * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Christiaan Simons <christiaan.simons@axon.tv>
+ */
+
+#ifndef __LWIP_SNMP_ASN1_H__
+#define __LWIP_SNMP_ASN1_H__
+
+#include "lwip/opt.h"
+#include "lwip/err.h"
+#include "lwip/pbuf.h"
+#include "lwip/snmp.h"
+
+#if LWIP_SNMP
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SNMP_ASN1_UNIV (!0x80 | !0x40)
+#define SNMP_ASN1_APPLIC (!0x80 | 0x40)
+#define SNMP_ASN1_CONTXT ( 0x80 | !0x40)
+
+#define SNMP_ASN1_CONSTR (0x20)
+#define SNMP_ASN1_PRIMIT (!0x20)
+
+/* universal tags */
+#define SNMP_ASN1_INTEG 2
+#define SNMP_ASN1_OC_STR 4
+#define SNMP_ASN1_NUL 5
+#define SNMP_ASN1_OBJ_ID 6
+#define SNMP_ASN1_SEQ 16
+
+/* application specific (SNMP) tags */
+#define SNMP_ASN1_IPADDR 0 /* octet string size(4) */
+#define SNMP_ASN1_COUNTER 1 /* u32_t */
+#define SNMP_ASN1_GAUGE 2 /* u32_t */
+#define SNMP_ASN1_TIMETICKS 3 /* u32_t */
+#define SNMP_ASN1_OPAQUE 4 /* octet string */
+
+/* context specific (SNMP) tags */
+#define SNMP_ASN1_PDU_GET_REQ 0
+#define SNMP_ASN1_PDU_GET_NEXT_REQ 1
+#define SNMP_ASN1_PDU_GET_RESP 2
+#define SNMP_ASN1_PDU_SET_REQ 3
+#define SNMP_ASN1_PDU_TRAP 4
+
+err_t snmp_asn1_dec_type(struct pbuf *p, u16_t ofs, u8_t *type);
+err_t snmp_asn1_dec_length(struct pbuf *p, u16_t ofs, u8_t *octets_used, u16_t *length);
+err_t snmp_asn1_dec_u32t(struct pbuf *p, u16_t ofs, u16_t len, u32_t *value);
+err_t snmp_asn1_dec_s32t(struct pbuf *p, u16_t ofs, u16_t len, s32_t *value);
+err_t snmp_asn1_dec_oid(struct pbuf *p, u16_t ofs, u16_t len, struct snmp_obj_id *oid);
+err_t snmp_asn1_dec_raw(struct pbuf *p, u16_t ofs, u16_t len, u16_t raw_len, u8_t *raw);
+
+void snmp_asn1_enc_length_cnt(u16_t length, u8_t *octets_needed);
+void snmp_asn1_enc_u32t_cnt(u32_t value, u16_t *octets_needed);
+void snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed);
+void snmp_asn1_enc_oid_cnt(u8_t ident_len, s32_t *ident, u16_t *octets_needed);
+err_t snmp_asn1_enc_type(struct pbuf *p, u16_t ofs, u8_t type);
+err_t snmp_asn1_enc_length(struct pbuf *p, u16_t ofs, u16_t length);
+err_t snmp_asn1_enc_u32t(struct pbuf *p, u16_t ofs, u8_t octets_needed, u32_t value);
+err_t snmp_asn1_enc_s32t(struct pbuf *p, u16_t ofs, u8_t octets_needed, s32_t value);
+err_t snmp_asn1_enc_oid(struct pbuf *p, u16_t ofs, u8_t ident_len, s32_t *ident);
+err_t snmp_asn1_enc_raw(struct pbuf *p, u16_t ofs, u8_t raw_len, u8_t *raw);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SNMP */
+
+#endif /* __LWIP_SNMP_ASN1_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h
new file mode 100644
index 000000000..b2f69c4be
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h
@@ -0,0 +1,311 @@
+/**
+ * @file
+ * SNMP Agent message handling structures.
+ */
+
+/*
+ * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Christiaan Simons <christiaan.simons@axon.tv>
+ */
+
+#ifndef __LWIP_SNMP_MSG_H__
+#define __LWIP_SNMP_MSG_H__
+
+#include "lwip/opt.h"
+#include "lwip/snmp.h"
+#include "lwip/snmp_structs.h"
+
+#if LWIP_SNMP
+
+#if SNMP_PRIVATE_MIB
+#include "private_mib.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The listen port of the SNMP agent. Clients have to make their requests to
+ this port. Most standard clients won't work if you change this! */
+#ifndef SNMP_IN_PORT
+#define SNMP_IN_PORT 161
+#endif
+/* The remote port the SNMP agent sends traps to. Most standard trap sinks won't
+ work if you change this! */
+#ifndef SNMP_TRAP_PORT
+#define SNMP_TRAP_PORT 162
+#endif
+
+#define SNMP_ES_NOERROR 0
+#define SNMP_ES_TOOBIG 1
+#define SNMP_ES_NOSUCHNAME 2
+#define SNMP_ES_BADVALUE 3
+#define SNMP_ES_READONLY 4
+#define SNMP_ES_GENERROR 5
+
+#define SNMP_GENTRAP_COLDSTART 0
+#define SNMP_GENTRAP_WARMSTART 1
+#define SNMP_GENTRAP_AUTHFAIL 4
+#define SNMP_GENTRAP_ENTERPRISESPC 6
+
+struct snmp_varbind
+{
+ /* next pointer, NULL for last in list */
+ struct snmp_varbind *next;
+ /* previous pointer, NULL for first in list */
+ struct snmp_varbind *prev;
+
+ /* object identifier length (in s32_t) */
+ u8_t ident_len;
+ /* object identifier array */
+ s32_t *ident;
+
+ /* object value ASN1 type */
+ u8_t value_type;
+ /* object value length (in u8_t) */
+ u8_t value_len;
+ /* object value */
+ void *value;
+
+ /* encoding varbind seq length length */
+ u8_t seqlenlen;
+ /* encoding object identifier length length */
+ u8_t olenlen;
+ /* encoding object value length length */
+ u8_t vlenlen;
+ /* encoding varbind seq length */
+ u16_t seqlen;
+ /* encoding object identifier length */
+ u16_t olen;
+ /* encoding object value length */
+ u16_t vlen;
+};
+
+struct snmp_varbind_root
+{
+ struct snmp_varbind *head;
+ struct snmp_varbind *tail;
+ /* number of variable bindings in list */
+ u8_t count;
+ /* encoding varbind-list seq length length */
+ u8_t seqlenlen;
+ /* encoding varbind-list seq length */
+ u16_t seqlen;
+};
+
+/** output response message header length fields */
+struct snmp_resp_header_lengths
+{
+ /* encoding error-index length length */
+ u8_t erridxlenlen;
+ /* encoding error-status length length */
+ u8_t errstatlenlen;
+ /* encoding request id length length */
+ u8_t ridlenlen;
+ /* encoding pdu length length */
+ u8_t pdulenlen;
+ /* encoding community length length */
+ u8_t comlenlen;
+ /* encoding version length length */
+ u8_t verlenlen;
+ /* encoding sequence length length */
+ u8_t seqlenlen;
+
+ /* encoding error-index length */
+ u16_t erridxlen;
+ /* encoding error-status length */
+ u16_t errstatlen;
+ /* encoding request id length */
+ u16_t ridlen;
+ /* encoding pdu length */
+ u16_t pdulen;
+ /* encoding community length */
+ u16_t comlen;
+ /* encoding version length */
+ u16_t verlen;
+ /* encoding sequence length */
+ u16_t seqlen;
+};
+
+/** output response message header length fields */
+struct snmp_trap_header_lengths
+{
+ /* encoding timestamp length length */
+ u8_t tslenlen;
+ /* encoding specific-trap length length */
+ u8_t strplenlen;
+ /* encoding generic-trap length length */
+ u8_t gtrplenlen;
+ /* encoding agent-addr length length */
+ u8_t aaddrlenlen;
+ /* encoding enterprise-id length length */
+ u8_t eidlenlen;
+ /* encoding pdu length length */
+ u8_t pdulenlen;
+ /* encoding community length length */
+ u8_t comlenlen;
+ /* encoding version length length */
+ u8_t verlenlen;
+ /* encoding sequence length length */
+ u8_t seqlenlen;
+
+ /* encoding timestamp length */
+ u16_t tslen;
+ /* encoding specific-trap length */
+ u16_t strplen;
+ /* encoding generic-trap length */
+ u16_t gtrplen;
+ /* encoding agent-addr length */
+ u16_t aaddrlen;
+ /* encoding enterprise-id length */
+ u16_t eidlen;
+ /* encoding pdu length */
+ u16_t pdulen;
+ /* encoding community length */
+ u16_t comlen;
+ /* encoding version length */
+ u16_t verlen;
+ /* encoding sequence length */
+ u16_t seqlen;
+};
+
+/* Accepting new SNMP messages. */
+#define SNMP_MSG_EMPTY 0
+/* Search for matching object for variable binding. */
+#define SNMP_MSG_SEARCH_OBJ 1
+/* Perform SNMP operation on in-memory object.
+ Pass-through states, for symmetry only. */
+#define SNMP_MSG_INTERNAL_GET_OBJDEF 2
+#define SNMP_MSG_INTERNAL_GET_VALUE 3
+#define SNMP_MSG_INTERNAL_SET_TEST 4
+#define SNMP_MSG_INTERNAL_GET_OBJDEF_S 5
+#define SNMP_MSG_INTERNAL_SET_VALUE 6
+/* Perform SNMP operation on object located externally.
+ In theory this could be used for building a proxy agent.
+ Practical use is for an enterprise spc. app. gateway. */
+#define SNMP_MSG_EXTERNAL_GET_OBJDEF 7
+#define SNMP_MSG_EXTERNAL_GET_VALUE 8
+#define SNMP_MSG_EXTERNAL_SET_TEST 9
+#define SNMP_MSG_EXTERNAL_GET_OBJDEF_S 10
+#define SNMP_MSG_EXTERNAL_SET_VALUE 11
+
+#define SNMP_COMMUNITY_STR_LEN 64
+struct snmp_msg_pstat
+{
+ /* lwIP local port (161) binding */
+ struct udp_pcb *pcb;
+ /* source IP address */
+ struct ip_addr sip;
+ /* source UDP port */
+ u16_t sp;
+ /* request type */
+ u8_t rt;
+ /* request ID */
+ s32_t rid;
+ /* error status */
+ s32_t error_status;
+ /* error index */
+ s32_t error_index;
+ /* community name (zero terminated) */
+ u8_t community[SNMP_COMMUNITY_STR_LEN + 1];
+ /* community string length (exclusive zero term) */
+ u8_t com_strlen;
+ /* one out of MSG_EMPTY, MSG_DEMUX, MSG_INTERNAL, MSG_EXTERNAL_x */
+ u8_t state;
+ /* saved arguments for MSG_EXTERNAL_x */
+ struct mib_external_node *ext_mib_node;
+ struct snmp_name_ptr ext_name_ptr;
+ struct obj_def ext_object_def;
+ struct snmp_obj_id ext_oid;
+ /* index into input variable binding list */
+ u8_t vb_idx;
+ /* ptr into input variable binding list */
+ struct snmp_varbind *vb_ptr;
+ /* list of variable bindings from input */
+ struct snmp_varbind_root invb;
+ /* list of variable bindings to output */
+ struct snmp_varbind_root outvb;
+ /* output response lengths used in ASN encoding */
+ struct snmp_resp_header_lengths rhl;
+};
+
+struct snmp_msg_trap
+{
+ /* lwIP local port (161) binding */
+ struct udp_pcb *pcb;
+ /* destination IP address in network order */
+ struct ip_addr dip;
+
+ /* source enterprise ID (sysObjectID) */
+ struct snmp_obj_id *enterprise;
+ /* source IP address, raw network order format */
+ u8_t sip_raw[4];
+ /* generic trap code */
+ u32_t gen_trap;
+ /* specific trap code */
+ u32_t spc_trap;
+ /* timestamp */
+ u32_t ts;
+ /* list of variable bindings to output */
+ struct snmp_varbind_root outvb;
+ /* output trap lengths used in ASN encoding */
+ struct snmp_trap_header_lengths thl;
+};
+
+/** Agent Version constant, 0 = v1 oddity */
+extern const s32_t snmp_version;
+/** Agent default "public" community string */
+extern const char snmp_publiccommunity[7];
+
+extern struct snmp_msg_trap trap_msg;
+
+/** Agent setup, start listening to port 161. */
+void snmp_init(void);
+void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable);
+void snmp_trap_dst_ip_set(u8_t dst_idx, struct ip_addr *dst);
+
+/** Varbind-list functions. */
+struct snmp_varbind* snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len);
+void snmp_varbind_free(struct snmp_varbind *vb);
+void snmp_varbind_list_free(struct snmp_varbind_root *root);
+void snmp_varbind_tail_add(struct snmp_varbind_root *root, struct snmp_varbind *vb);
+struct snmp_varbind* snmp_varbind_tail_remove(struct snmp_varbind_root *root);
+
+/** Handle an internal (recv) or external (private response) event. */
+void snmp_msg_event(u8_t request_id);
+err_t snmp_send_response(struct snmp_msg_pstat *m_stat);
+err_t snmp_send_trap(s8_t generic_trap, struct snmp_obj_id *eoid, s32_t specific_trap);
+void snmp_coldstart_trap(void);
+void snmp_authfail_trap(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SNMP */
+
+#endif /* __LWIP_SNMP_MSG_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h
new file mode 100644
index 000000000..9f3f8a94e
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h
@@ -0,0 +1,262 @@
+/**
+ * @file
+ * Generic MIB tree structures.
+ *
+ * @todo namespace prefixes
+ */
+
+/*
+ * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Christiaan Simons <christiaan.simons@axon.tv>
+ */
+
+#ifndef __LWIP_SNMP_STRUCTS_H__
+#define __LWIP_SNMP_STRUCTS_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/snmp.h"
+
+#if SNMP_PRIVATE_MIB
+#include "private_mib.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* MIB object instance */
+#define MIB_OBJECT_NONE 0
+#define MIB_OBJECT_SCALAR 1
+#define MIB_OBJECT_TAB 2
+
+/* MIB object access */
+#define MIB_OBJECT_READ_ONLY 0
+#define MIB_OBJECT_READ_WRITE 1
+#define MIB_OBJECT_WRITE_ONLY 2
+#define MIB_OBJECT_NOT_ACCESSIBLE 3
+
+/** object definition returned by (get_object_def)() */
+struct obj_def
+{
+ /* MIB_OBJECT_NONE (0), MIB_OBJECT_SCALAR (1), MIB_OBJECT_TAB (2) */
+ u8_t instance;
+ /* 0 read-only, 1 read-write, 2 write-only, 3 not-accessible */
+ u8_t access;
+ /* ASN type for this object */
+ u8_t asn_type;
+ /* value length (host length) */
+ u16_t v_len;
+ /* length of instance part of supplied object identifier */
+ u8_t id_inst_len;
+ /* instance part of supplied object identifier */
+ s32_t *id_inst_ptr;
+};
+
+struct snmp_name_ptr
+{
+ u8_t ident_len;
+ s32_t *ident;
+};
+
+/** MIB const scalar (.0) node */
+#define MIB_NODE_SC 0x01
+/** MIB const array node */
+#define MIB_NODE_AR 0x02
+/** MIB array node (mem_malloced from RAM) */
+#define MIB_NODE_RA 0x03
+/** MIB list root node (mem_malloced from RAM) */
+#define MIB_NODE_LR 0x04
+/** MIB node for external objects */
+#define MIB_NODE_EX 0x05
+
+/** node "base class" layout, the mandatory fields for a node */
+struct mib_node
+{
+ /** returns struct obj_def for the given object identifier */
+ void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+ /** returns object value for the given object identifier,
+ @note the caller must allocate at least len bytes for the value */
+ void (*get_value)(struct obj_def *od, u16_t len, void *value);
+ /** tests length and/or range BEFORE setting */
+ u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+ /** sets object value, only to be called when set_test() */
+ void (*set_value)(struct obj_def *od, u16_t len, void *value);
+ /** One out of MIB_NODE_AR, MIB_NODE_LR or MIB_NODE_EX */
+ const u8_t node_type;
+ /* array or max list length */
+ const u16_t maxlength;
+};
+
+/** derived node for scalars .0 index */
+typedef struct mib_node mib_scalar_node;
+
+/** derived node, points to a fixed size const array
+ of sub-identifiers plus a 'child' pointer */
+struct mib_array_node
+{
+ /* inherited "base class" members */
+ void (* const get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+ void (* const get_value)(struct obj_def *od, u16_t len, void *value);
+ u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+ void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+ const u8_t node_type;
+ const u16_t maxlength;
+
+ /* aditional struct members */
+ const s32_t *objid;
+ struct mib_node* const *nptr;
+};
+
+/** derived node, points to a fixed size mem_malloced array
+ of sub-identifiers plus a 'child' pointer */
+struct mib_ram_array_node
+{
+ /* inherited "base class" members */
+ void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+ void (*get_value)(struct obj_def *od, u16_t len, void *value);
+ u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+ void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+ u8_t node_type;
+ u16_t maxlength;
+
+ /* aditional struct members */
+ s32_t *objid;
+ struct mib_node **nptr;
+};
+
+struct mib_list_node
+{
+ struct mib_list_node *prev;
+ struct mib_list_node *next;
+ s32_t objid;
+ struct mib_node *nptr;
+};
+
+/** derived node, points to a doubly linked list
+ of sub-identifiers plus a 'child' pointer */
+struct mib_list_rootnode
+{
+ /* inherited "base class" members */
+ void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+ void (*get_value)(struct obj_def *od, u16_t len, void *value);
+ u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+ void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+ u8_t node_type;
+ u16_t maxlength;
+
+ /* aditional struct members */
+ struct mib_list_node *head;
+ struct mib_list_node *tail;
+ /* counts list nodes in list */
+ u16_t count;
+};
+
+/** derived node, has access functions for mib object in external memory or device
+ using 'tree_level' and 'idx', with a range 0 .. (level_length() - 1) */
+struct mib_external_node
+{
+ /* inherited "base class" members */
+ void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
+ void (*get_value)(struct obj_def *od, u16_t len, void *value);
+ u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
+ void (*set_value)(struct obj_def *od, u16_t len, void *value);
+
+ u8_t node_type;
+ u16_t maxlength;
+
+ /* aditional struct members */
+ /** points to an extenal (in memory) record of some sort of addressing
+ information, passed to and interpreted by the funtions below */
+ void* addr_inf;
+ /** tree levels under this node */
+ u8_t tree_levels;
+ /** number of objects at this level */
+ u16_t (*level_length)(void* addr_inf, u8_t level);
+ /** compares object sub identifier with external id
+ return zero when equal, nonzero when unequal */
+ s32_t (*ident_cmp)(void* addr_inf, u8_t level, u16_t idx, s32_t sub_id);
+ void (*get_objid)(void* addr_inf, u8_t level, u16_t idx, s32_t *sub_id);
+
+ /** async Questions */
+ void (*get_object_def_q)(void* addr_inf, u8_t rid, u8_t ident_len, s32_t *ident);
+ void (*get_value_q)(u8_t rid, struct obj_def *od);
+ void (*set_test_q)(u8_t rid, struct obj_def *od);
+ void (*set_value_q)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+ /** async Answers */
+ void (*get_object_def_a)(u8_t rid, u8_t ident_len, s32_t *ident, struct obj_def *od);
+ void (*get_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+ u8_t (*set_test_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+ void (*set_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
+ /** async Panic Close (agent returns error reply,
+ e.g. used for external transaction cleanup) */
+ void (*get_object_def_pc)(u8_t rid, u8_t ident_len, s32_t *ident);
+ void (*get_value_pc)(u8_t rid, struct obj_def *od);
+ void (*set_test_pc)(u8_t rid, struct obj_def *od);
+ void (*set_value_pc)(u8_t rid, struct obj_def *od);
+};
+
+/** export MIB tree from mib2.c */
+extern const struct mib_array_node internet;
+
+/** dummy function pointers for non-leaf MIB nodes from mib2.c */
+void noleafs_get_object_def(u8_t ident_len, s32_t *ident, struct obj_def *od);
+void noleafs_get_value(struct obj_def *od, u16_t len, void *value);
+u8_t noleafs_set_test(struct obj_def *od, u16_t len, void *value);
+void noleafs_set_value(struct obj_def *od, u16_t len, void *value);
+
+void snmp_oidtoip(s32_t *ident, struct ip_addr *ip);
+void snmp_iptooid(struct ip_addr *ip, s32_t *ident);
+void snmp_ifindextonetif(s32_t ifindex, struct netif **netif);
+void snmp_netiftoifindex(struct netif *netif, s32_t *ifidx);
+
+struct mib_list_node* snmp_mib_ln_alloc(s32_t id);
+void snmp_mib_ln_free(struct mib_list_node *ln);
+struct mib_list_rootnode* snmp_mib_lrn_alloc(void);
+void snmp_mib_lrn_free(struct mib_list_rootnode *lrn);
+
+s8_t snmp_mib_node_insert(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **insn);
+s8_t snmp_mib_node_find(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **fn);
+struct mib_list_rootnode *snmp_mib_node_delete(struct mib_list_rootnode *rn, struct mib_list_node *n);
+
+struct mib_node* snmp_search_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_name_ptr *np);
+struct mib_node* snmp_expand_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
+u8_t snmp_iso_prefix_tst(u8_t ident_len, s32_t *ident);
+u8_t snmp_iso_prefix_expand(u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SNMP */
+
+#endif /* __LWIP_SNMP_STRUCTS_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sockets.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sockets.h
new file mode 100644
index 000000000..7b52e151c
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sockets.h
@@ -0,0 +1,357 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+
+#ifndef __LWIP_SOCKETS_H__
+#define __LWIP_SOCKETS_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
+
+#include <stddef.h> /* for size_t */
+
+#include "lwip/ip_addr.h"
+#include "lwip/inet.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* members are in network byte order */
+struct sockaddr_in {
+ u8_t sin_len;
+ u8_t sin_family;
+ u16_t sin_port;
+ struct in_addr sin_addr;
+ char sin_zero[8];
+};
+
+struct sockaddr {
+ u8_t sa_len;
+ u8_t sa_family;
+ char sa_data[14];
+};
+
+#ifndef socklen_t
+# define socklen_t u32_t
+#endif
+
+/* Socket protocol types (TCP/UDP/RAW) */
+#define SOCK_STREAM 1
+#define SOCK_DGRAM 2
+#define SOCK_RAW 3
+
+/*
+ * Option flags per-socket. These must match the SOF_ flags in ip.h!
+ */
+#define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */
+#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
+#define SO_REUSEADDR 0x0004 /* Unimplemented: allow local address reuse */
+#define SO_KEEPALIVE 0x0008 /* keep connections alive */
+#define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */
+#define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
+#define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */
+#define SO_LINGER 0x0080 /* linger on close if data present */
+#define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */
+#define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */
+
+#define SO_DONTLINGER ((int)(~SO_LINGER))
+
+/*
+ * Additional options, not kept in so_options.
+ */
+#define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */
+#define SO_RCVBUF 0x1002 /* receive buffer size */
+#define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */
+#define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */
+#define SO_SNDTIMEO 0x1005 /* Unimplemented: send timeout */
+#define SO_RCVTIMEO 0x1006 /* receive timeout */
+#define SO_ERROR 0x1007 /* get error status and clear */
+#define SO_TYPE 0x1008 /* get socket type */
+#define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */
+#define SO_NO_CHECK 0x100a /* don't create UDP checksum */
+
+
+/*
+ * Structure used for manipulating linger option.
+ */
+struct linger {
+ int l_onoff; /* option on/off */
+ int l_linger; /* linger time */
+};
+
+/*
+ * Level number for (get/set)sockopt() to apply to socket itself.
+ */
+#define SOL_SOCKET 0xfff /* options for socket level */
+
+
+#define AF_UNSPEC 0
+#define AF_INET 2
+#define PF_INET AF_INET
+#define PF_UNSPEC AF_UNSPEC
+
+#define IPPROTO_IP 0
+#define IPPROTO_TCP 6
+#define IPPROTO_UDP 17
+#define IPPROTO_UDPLITE 136
+
+/* Flags we can use with send and recv. */
+#define MSG_PEEK 0x01 /* Peeks at an incoming message */
+#define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */
+#define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */
+#define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */
+#define MSG_MORE 0x10 /* Sender will send more */
+
+
+/*
+ * Options for level IPPROTO_IP
+ */
+#define IP_TOS 1
+#define IP_TTL 2
+
+#if LWIP_TCP
+/*
+ * Options for level IPPROTO_TCP
+ */
+#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
+#define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */
+#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
+#define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */
+#define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */
+#endif /* LWIP_TCP */
+
+#if LWIP_UDP && LWIP_UDPLITE
+/*
+ * Options for level IPPROTO_UDPLITE
+ */
+#define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */
+#define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */
+#endif /* LWIP_UDP && LWIP_UDPLITE*/
+
+
+#if LWIP_IGMP
+/*
+ * Options and types for UDP multicast traffic handling
+ */
+#define IP_ADD_MEMBERSHIP 3
+#define IP_DROP_MEMBERSHIP 4
+#define IP_MULTICAST_TTL 5
+#define IP_MULTICAST_IF 6
+#define IP_MULTICAST_LOOP 7
+
+typedef struct ip_mreq {
+ struct in_addr imr_multiaddr; /* IP multicast address of group */
+ struct in_addr imr_interface; /* local IP address of interface */
+} ip_mreq;
+#endif /* LWIP_IGMP */
+
+/*
+ * The Type of Service provides an indication of the abstract
+ * parameters of the quality of service desired. These parameters are
+ * to be used to guide the selection of the actual service parameters
+ * when transmitting a datagram through a particular network. Several
+ * networks offer service precedence, which somehow treats high
+ * precedence traffic as more important than other traffic (generally
+ * by accepting only traffic above a certain precedence at time of high
+ * load). The major choice is a three way tradeoff between low-delay,
+ * high-reliability, and high-throughput.
+ * The use of the Delay, Throughput, and Reliability indications may
+ * increase the cost (in some sense) of the service. In many networks
+ * better performance for one of these parameters is coupled with worse
+ * performance on another. Except for very unusual cases at most two
+ * of these three indications should be set.
+ */
+#define IPTOS_TOS_MASK 0x1E
+#define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
+#define IPTOS_LOWDELAY 0x10
+#define IPTOS_THROUGHPUT 0x08
+#define IPTOS_RELIABILITY 0x04
+#define IPTOS_LOWCOST 0x02
+#define IPTOS_MINCOST IPTOS_LOWCOST
+
+/*
+ * The Network Control precedence designation is intended to be used
+ * within a network only. The actual use and control of that
+ * designation is up to each network. The Internetwork Control
+ * designation is intended for use by gateway control originators only.
+ * If the actual use of these precedence designations is of concern to
+ * a particular network, it is the responsibility of that network to
+ * control the access to, and use of, those precedence designations.
+ */
+#define IPTOS_PREC_MASK 0xe0
+#define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK)
+#define IPTOS_PREC_NETCONTROL 0xe0
+#define IPTOS_PREC_INTERNETCONTROL 0xc0
+#define IPTOS_PREC_CRITIC_ECP 0xa0
+#define IPTOS_PREC_FLASHOVERRIDE 0x80
+#define IPTOS_PREC_FLASH 0x60
+#define IPTOS_PREC_IMMEDIATE 0x40
+#define IPTOS_PREC_PRIORITY 0x20
+#define IPTOS_PREC_ROUTINE 0x00
+
+
+/*
+ * Commands for ioctlsocket(), taken from the BSD file fcntl.h.
+ * lwip_ioctl only supports FIONREAD and FIONBIO, for now
+ *
+ * Ioctl's have the command encoded in the lower word,
+ * and the size of any in or out parameters in the upper
+ * word. The high 2 bits of the upper word are used
+ * to encode the in/out status of the parameter; for now
+ * we restrict parameters to at most 128 bytes.
+ */
+#if !defined(FIONREAD) || !defined(FIONBIO)
+#define IOCPARM_MASK 0x7fU /* parameters must be < 128 bytes */
+#define IOC_VOID 0x20000000UL /* no parameters */
+#define IOC_OUT 0x40000000UL /* copy out parameters */
+#define IOC_IN 0x80000000UL /* copy in parameters */
+#define IOC_INOUT (IOC_IN|IOC_OUT)
+ /* 0x20000000 distinguishes new &
+ old ioctl's */
+#define _IO(x,y) (IOC_VOID|((x)<<8)|(y))
+
+#define _IOR(x,y,t) (IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
+
+#define _IOW(x,y,t) (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
+#endif /* !defined(FIONREAD) || !defined(FIONBIO) */
+
+#ifndef FIONREAD
+#define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */
+#endif
+#ifndef FIONBIO
+#define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */
+#endif
+
+/* Socket I/O Controls: unimplemented */
+#ifndef SIOCSHIWAT
+#define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */
+#define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */
+#define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */
+#define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */
+#define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */
+#endif
+
+/* Socket flags: */
+#ifndef O_NONBLOCK
+#define O_NONBLOCK 04000U
+#endif
+
+/* FD_SET used for lwip_select */
+#ifndef FD_SET
+ #undef FD_SETSIZE
+ /* Make FD_SETSIZE match NUM_SOCKETS in socket.c */
+ #define FD_SETSIZE MEMP_NUM_NETCONN
+ #define FD_SET(n, p) ((p)->fd_bits[(n)/8] |= (1 << ((n) & 7)))
+ #define FD_CLR(n, p) ((p)->fd_bits[(n)/8] &= ~(1 << ((n) & 7)))
+ #define FD_ISSET(n,p) ((p)->fd_bits[(n)/8] & (1 << ((n) & 7)))
+ #define FD_ZERO(p) memset((void*)(p),0,sizeof(*(p)))
+
+ typedef struct fd_set {
+ unsigned char fd_bits [(FD_SETSIZE+7)/8];
+ } fd_set;
+
+#endif /* FD_SET */
+
+/** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided
+ * by your system, set this to 0 and include <sys/time.h> in cc.h */
+#ifndef LWIP_TIMEVAL_PRIVATE
+#define LWIP_TIMEVAL_PRIVATE 1
+#endif
+
+#if LWIP_TIMEVAL_PRIVATE
+struct timeval {
+ long tv_sec; /* seconds */
+ long tv_usec; /* and microseconds */
+};
+#endif /* LWIP_TIMEVAL_PRIVATE */
+
+void lwip_socket_init(void);
+
+int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
+int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen);
+int lwip_shutdown(int s, int how);
+int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
+int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
+int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
+int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
+int lwip_close(int s);
+int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
+int lwip_listen(int s, int backlog);
+int lwip_recv(int s, void *mem, size_t len, int flags);
+int lwip_read(int s, void *mem, size_t len);
+int lwip_recvfrom(int s, void *mem, size_t len, int flags,
+ struct sockaddr *from, socklen_t *fromlen);
+int lwip_send(int s, const void *dataptr, size_t size, int flags);
+int lwip_sendto(int s, const void *dataptr, size_t size, int flags,
+ const struct sockaddr *to, socklen_t tolen);
+int lwip_socket(int domain, int type, int protocol);
+int lwip_write(int s, const void *dataptr, size_t size);
+int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
+ struct timeval *timeout);
+int lwip_ioctl(int s, long cmd, void *argp);
+
+#if LWIP_COMPAT_SOCKETS
+#define accept(a,b,c) lwip_accept(a,b,c)
+#define bind(a,b,c) lwip_bind(a,b,c)
+#define shutdown(a,b) lwip_shutdown(a,b)
+#define closesocket(s) lwip_close(s)
+#define connect(a,b,c) lwip_connect(a,b,c)
+#define getsockname(a,b,c) lwip_getsockname(a,b,c)
+#define getpeername(a,b,c) lwip_getpeername(a,b,c)
+#define setsockopt(a,b,c,d,e) lwip_setsockopt(a,b,c,d,e)
+#define getsockopt(a,b,c,d,e) lwip_getsockopt(a,b,c,d,e)
+#define listen(a,b) lwip_listen(a,b)
+#define recv(a,b,c,d) lwip_recv(a,b,c,d)
+#define recvfrom(a,b,c,d,e,f) lwip_recvfrom(a,b,c,d,e,f)
+#define send(a,b,c,d) lwip_send(a,b,c,d)
+#define sendto(a,b,c,d,e,f) lwip_sendto(a,b,c,d,e,f)
+#define socket(a,b,c) lwip_socket(a,b,c)
+#define select(a,b,c,d,e) lwip_select(a,b,c,d,e)
+#define ioctlsocket(a,b,c) lwip_ioctl(a,b,c)
+
+#if LWIP_POSIX_SOCKETS_IO_NAMES
+#define read(a,b,c) lwip_read(a,b,c)
+#define write(a,b,c) lwip_write(a,b,c)
+#define close(s) lwip_close(s)
+#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
+
+#endif /* LWIP_COMPAT_SOCKETS */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_SOCKET */
+
+#endif /* __LWIP_SOCKETS_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/stats.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/stats.h
new file mode 100644
index 000000000..aa179f5c0
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/stats.h
@@ -0,0 +1,283 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_STATS_H__
+#define __LWIP_STATS_H__
+
+#include "lwip/opt.h"
+
+#include "lwip/mem.h"
+#include "lwip/memp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if LWIP_STATS
+
+#ifndef LWIP_STATS_LARGE
+#define LWIP_STATS_LARGE 0
+#endif
+
+#if LWIP_STATS_LARGE
+#define STAT_COUNTER u32_t
+#define STAT_COUNTER_F U32_F
+#else
+#define STAT_COUNTER u16_t
+#define STAT_COUNTER_F U16_F
+#endif
+
+struct stats_proto {
+ STAT_COUNTER xmit; /* Transmitted packets. */
+ STAT_COUNTER recv; /* Received packets. */
+ STAT_COUNTER fw; /* Forwarded packets. */
+ STAT_COUNTER drop; /* Dropped packets. */
+ STAT_COUNTER chkerr; /* Checksum error. */
+ STAT_COUNTER lenerr; /* Invalid length error. */
+ STAT_COUNTER memerr; /* Out of memory error. */
+ STAT_COUNTER rterr; /* Routing error. */
+ STAT_COUNTER proterr; /* Protocol error. */
+ STAT_COUNTER opterr; /* Error in options. */
+ STAT_COUNTER err; /* Misc error. */
+ STAT_COUNTER cachehit;
+};
+
+struct stats_igmp {
+ STAT_COUNTER lenerr; /* Invalid length error. */
+ STAT_COUNTER chkerr; /* Checksum error. */
+ STAT_COUNTER v1_rxed; /* */
+ STAT_COUNTER join_sent; /* */
+ STAT_COUNTER leave_sent; /* */
+ STAT_COUNTER unicast_query; /* */
+ STAT_COUNTER report_sent; /* */
+ STAT_COUNTER report_rxed; /* */
+ STAT_COUNTER group_query_rxed; /* */
+};
+
+struct stats_mem {
+ mem_size_t avail;
+ mem_size_t used;
+ mem_size_t max;
+ STAT_COUNTER err;
+ STAT_COUNTER illegal;
+};
+
+struct stats_syselem {
+ STAT_COUNTER used;
+ STAT_COUNTER max;
+ STAT_COUNTER err;
+};
+
+struct stats_sys {
+ struct stats_syselem sem;
+ struct stats_syselem mbox;
+};
+
+struct stats_ {
+#if LINK_STATS
+ struct stats_proto link;
+#endif
+#if ETHARP_STATS
+ struct stats_proto etharp;
+#endif
+#if IPFRAG_STATS
+ struct stats_proto ip_frag;
+#endif
+#if IP_STATS
+ struct stats_proto ip;
+#endif
+#if ICMP_STATS
+ struct stats_proto icmp;
+#endif
+#if IGMP_STATS
+ struct stats_igmp igmp;
+#endif
+#if UDP_STATS
+ struct stats_proto udp;
+#endif
+#if TCP_STATS
+ struct stats_proto tcp;
+#endif
+#if MEM_STATS
+ struct stats_mem mem;
+#endif
+#if MEMP_STATS
+ struct stats_mem memp[MEMP_MAX];
+#endif
+#if SYS_STATS
+ struct stats_sys sys;
+#endif
+};
+
+extern struct stats_ lwip_stats;
+
+#define stats_init() /* Compatibility define, not init needed. */
+
+#define STATS_INC(x) ++lwip_stats.x
+#define STATS_DEC(x) --lwip_stats.x
+#else
+#define stats_init()
+#define STATS_INC(x)
+#define STATS_DEC(x)
+#endif /* LWIP_STATS */
+
+#if TCP_STATS
+#define TCP_STATS_INC(x) STATS_INC(x)
+#define TCP_STATS_DISPLAY() stats_display_proto(&lwip_stats.tcp, "TCP")
+#else
+#define TCP_STATS_INC(x)
+#define TCP_STATS_DISPLAY()
+#endif
+
+#if UDP_STATS
+#define UDP_STATS_INC(x) STATS_INC(x)
+#define UDP_STATS_DISPLAY() stats_display_proto(&lwip_stats.udp, "UDP")
+#else
+#define UDP_STATS_INC(x)
+#define UDP_STATS_DISPLAY()
+#endif
+
+#if ICMP_STATS
+#define ICMP_STATS_INC(x) STATS_INC(x)
+#define ICMP_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp, "ICMP")
+#else
+#define ICMP_STATS_INC(x)
+#define ICMP_STATS_DISPLAY()
+#endif
+
+#if IGMP_STATS
+#define IGMP_STATS_INC(x) STATS_INC(x)
+#define IGMP_STATS_DISPLAY() stats_display_igmp(&lwip_stats.igmp)
+#else
+#define IGMP_STATS_INC(x)
+#define IGMP_STATS_DISPLAY()
+#endif
+
+#if IP_STATS
+#define IP_STATS_INC(x) STATS_INC(x)
+#define IP_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip, "IP")
+#else
+#define IP_STATS_INC(x)
+#define IP_STATS_DISPLAY()
+#endif
+
+#if IPFRAG_STATS
+#define IPFRAG_STATS_INC(x) STATS_INC(x)
+#define IPFRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip_frag, "IP_FRAG")
+#else
+#define IPFRAG_STATS_INC(x)
+#define IPFRAG_STATS_DISPLAY()
+#endif
+
+#if ETHARP_STATS
+#define ETHARP_STATS_INC(x) STATS_INC(x)
+#define ETHARP_STATS_DISPLAY() stats_display_proto(&lwip_stats.etharp, "ETHARP")
+#else
+#define ETHARP_STATS_INC(x)
+#define ETHARP_STATS_DISPLAY()
+#endif
+
+#if LINK_STATS
+#define LINK_STATS_INC(x) STATS_INC(x)
+#define LINK_STATS_DISPLAY() stats_display_proto(&lwip_stats.link, "LINK")
+#else
+#define LINK_STATS_INC(x)
+#define LINK_STATS_DISPLAY()
+#endif
+
+#if MEM_STATS
+#define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y
+#define MEM_STATS_INC(x) STATS_INC(mem.x)
+#define MEM_STATS_INC_USED(x, y) do { lwip_stats.mem.used += y; \
+ if (lwip_stats.mem.max < lwip_stats.mem.used) { \
+ lwip_stats.mem.max = lwip_stats.mem.used; \
+ } \
+ } while(0)
+#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x -= y
+#define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP")
+#else
+#define MEM_STATS_AVAIL(x, y)
+#define MEM_STATS_INC(x)
+#define MEM_STATS_INC_USED(x, y)
+#define MEM_STATS_DEC_USED(x, y)
+#define MEM_STATS_DISPLAY()
+#endif
+
+#if MEMP_STATS
+#define MEMP_STATS_AVAIL(x, i, y) lwip_stats.memp[i].x = y
+#define MEMP_STATS_INC(x, i) STATS_INC(memp[i].x)
+#define MEMP_STATS_DEC(x, i) STATS_DEC(memp[i].x)
+#define MEMP_STATS_INC_USED(x, i) do { ++lwip_stats.memp[i].used; \
+ if (lwip_stats.memp[i].max < lwip_stats.memp[i].used) { \
+ lwip_stats.memp[i].max = lwip_stats.memp[i].used; \
+ } \
+ } while(0)
+#define MEMP_STATS_DISPLAY(i) stats_display_memp(&lwip_stats.memp[i], i)
+#else
+#define MEMP_STATS_AVAIL(x, i, y)
+#define MEMP_STATS_INC(x, i)
+#define MEMP_STATS_DEC(x, i)
+#define MEMP_STATS_INC_USED(x, i)
+#define MEMP_STATS_DISPLAY(i)
+#endif
+
+#if SYS_STATS
+#define SYS_STATS_INC(x) STATS_INC(sys.x)
+#define SYS_STATS_DEC(x) STATS_DEC(sys.x)
+#define SYS_STATS_DISPLAY() stats_display_sys(&lwip_stats.sys)
+#else
+#define SYS_STATS_INC(x)
+#define SYS_STATS_DEC(x)
+#define SYS_STATS_DISPLAY()
+#endif
+
+/* Display of statistics */
+#if LWIP_STATS_DISPLAY
+void stats_display(void);
+void stats_display_proto(struct stats_proto *proto, char *name);
+void stats_display_igmp(struct stats_igmp *igmp);
+void stats_display_mem(struct stats_mem *mem, char *name);
+void stats_display_memp(struct stats_mem *mem, int index);
+void stats_display_sys(struct stats_sys *sys);
+#else
+#define stats_display()
+#define stats_display_proto(proto, name)
+#define stats_display_igmp(igmp)
+#define stats_display_mem(mem, name)
+#define stats_display_memp(mem, index)
+#define stats_display_sys(sys)
+#endif /* LWIP_STATS_DISPLAY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_STATS_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sys.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sys.h
new file mode 100644
index 000000000..0cc84ddf1
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/sys.h
@@ -0,0 +1,243 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_SYS_H__
+#define __LWIP_SYS_H__
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if NO_SYS
+
+/* For a totally minimal and standalone system, we provide null
+ definitions of the sys_ functions. */
+typedef u8_t sys_sem_t;
+typedef u8_t sys_mbox_t;
+struct sys_timeo {u8_t dummy;};
+
+#define sys_init()
+#define sys_timeout(m,h,a)
+#define sys_untimeout(m,a)
+#define sys_sem_new(c) c
+#define sys_sem_signal(s)
+#define sys_sem_wait(s)
+#define sys_sem_wait_timeout(s,t)
+#define sys_arch_sem_wait(s,t)
+#define sys_sem_free(s)
+#define sys_mbox_new(s) 0
+#define sys_mbox_fetch(m,d)
+#define sys_mbox_tryfetch(m,d)
+#define sys_mbox_post(m,d)
+#define sys_mbox_trypost(m,d)
+#define sys_mbox_free(m)
+
+#define sys_thread_new(n,t,a,s,p)
+
+#else /* NO_SYS */
+
+/** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */
+#define SYS_ARCH_TIMEOUT 0xffffffffUL
+
+/* sys_mbox_tryfetch returns SYS_MBOX_EMPTY if appropriate.
+ * For now we use the same magic value, but we allow this to change in future.
+ */
+#define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT
+
+#include "lwip/err.h"
+#include "arch/sys_arch.h"
+
+typedef void (* sys_timeout_handler)(void *arg);
+
+struct sys_timeo {
+ struct sys_timeo *next;
+ u32_t time;
+ sys_timeout_handler h;
+ void *arg;
+};
+
+struct sys_timeouts {
+ struct sys_timeo *next;
+};
+
+/* sys_init() must be called before anthing else. */
+void sys_init(void);
+
+/*
+ * sys_timeout():
+ *
+ * Schedule a timeout a specified amount of milliseconds in the
+ * future. When the timeout occurs, the specified timeout handler will
+ * be called. The handler will be passed the "arg" argument when
+ * called.
+ *
+ */
+void sys_timeout(u32_t msecs, sys_timeout_handler h, void *arg);
+void sys_untimeout(sys_timeout_handler h, void *arg);
+struct sys_timeouts *sys_arch_timeouts(void);
+
+/* Semaphore functions. */
+sys_sem_t sys_sem_new(u8_t count);
+void sys_sem_signal(sys_sem_t sem);
+u32_t sys_arch_sem_wait(sys_sem_t sem, u32_t timeout);
+void sys_sem_free(sys_sem_t sem);
+void sys_sem_wait(sys_sem_t sem);
+int sys_sem_wait_timeout(sys_sem_t sem, u32_t timeout);
+
+/* Time functions. */
+#ifndef sys_msleep
+void sys_msleep(u32_t ms); /* only has a (close to) 1 jiffy resolution. */
+#endif
+#ifndef sys_jiffies
+u32_t sys_jiffies(void); /* since power up. */
+#endif
+
+/* Mailbox functions. */
+sys_mbox_t sys_mbox_new(int size);
+void sys_mbox_post(sys_mbox_t mbox, void *msg);
+err_t sys_mbox_trypost(sys_mbox_t mbox, void *msg);
+u32_t sys_arch_mbox_fetch(sys_mbox_t mbox, void **msg, u32_t timeout);
+#ifndef sys_arch_mbox_tryfetch /* Allow port to override with a macro */
+u32_t sys_arch_mbox_tryfetch(sys_mbox_t mbox, void **msg);
+#endif
+/* For now, we map straight to sys_arch implementation. */
+#define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg)
+void sys_mbox_free(sys_mbox_t mbox);
+void sys_mbox_fetch(sys_mbox_t mbox, void **msg);
+
+/* Thread functions. */
+sys_thread_t sys_thread_new(char *name, void (* thread)(void *arg), void *arg, int stacksize, int prio);
+
+#endif /* NO_SYS */
+
+/** Returns the current time in milliseconds. */
+u32_t sys_now(void);
+
+/* Critical Region Protection */
+/* These functions must be implemented in the sys_arch.c file.
+ In some implementations they can provide a more light-weight protection
+ mechanism than using semaphores. Otherwise semaphores can be used for
+ implementation */
+#ifndef SYS_ARCH_PROTECT
+/** SYS_LIGHTWEIGHT_PROT
+ * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
+ * for certain critical regions during buffer allocation, deallocation and memory
+ * allocation and deallocation.
+ */
+#if SYS_LIGHTWEIGHT_PROT
+
+/** SYS_ARCH_DECL_PROTECT
+ * declare a protection variable. This macro will default to defining a variable of
+ * type sys_prot_t. If a particular port needs a different implementation, then
+ * this macro may be defined in sys_arch.h.
+ */
+#define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev
+/** SYS_ARCH_PROTECT
+ * Perform a "fast" protect. This could be implemented by
+ * disabling interrupts for an embedded system or by using a semaphore or
+ * mutex. The implementation should allow calling SYS_ARCH_PROTECT when
+ * already protected. The old protection level is returned in the variable
+ * "lev". This macro will default to calling the sys_arch_protect() function
+ * which should be implemented in sys_arch.c. If a particular port needs a
+ * different implementation, then this macro may be defined in sys_arch.h
+ */
+#define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect()
+/** SYS_ARCH_UNPROTECT
+ * Perform a "fast" set of the protection level to "lev". This could be
+ * implemented by setting the interrupt level to "lev" within the MACRO or by
+ * using a semaphore or mutex. This macro will default to calling the
+ * sys_arch_unprotect() function which should be implemented in
+ * sys_arch.c. If a particular port needs a different implementation, then
+ * this macro may be defined in sys_arch.h
+ */
+#define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev)
+sys_prot_t sys_arch_protect(void);
+void sys_arch_unprotect(sys_prot_t pval);
+
+#else
+
+#define SYS_ARCH_DECL_PROTECT(lev)
+#define SYS_ARCH_PROTECT(lev)
+#define SYS_ARCH_UNPROTECT(lev)
+
+#endif /* SYS_LIGHTWEIGHT_PROT */
+
+#endif /* SYS_ARCH_PROTECT */
+
+/*
+ * Macros to set/get and increase/decrease variables in a thread-safe way.
+ * Use these for accessing variable that are used from more than one thread.
+ */
+
+#ifndef SYS_ARCH_INC
+#define SYS_ARCH_INC(var, val) do { \
+ SYS_ARCH_DECL_PROTECT(old_level); \
+ SYS_ARCH_PROTECT(old_level); \
+ var += val; \
+ SYS_ARCH_UNPROTECT(old_level); \
+ } while(0)
+#endif /* SYS_ARCH_INC */
+
+#ifndef SYS_ARCH_DEC
+#define SYS_ARCH_DEC(var, val) do { \
+ SYS_ARCH_DECL_PROTECT(old_level); \
+ SYS_ARCH_PROTECT(old_level); \
+ var -= val; \
+ SYS_ARCH_UNPROTECT(old_level); \
+ } while(0)
+#endif /* SYS_ARCH_DEC */
+
+#ifndef SYS_ARCH_GET
+#define SYS_ARCH_GET(var, ret) do { \
+ SYS_ARCH_DECL_PROTECT(old_level); \
+ SYS_ARCH_PROTECT(old_level); \
+ ret = var; \
+ SYS_ARCH_UNPROTECT(old_level); \
+ } while(0)
+#endif /* SYS_ARCH_GET */
+
+#ifndef SYS_ARCH_SET
+#define SYS_ARCH_SET(var, val) do { \
+ SYS_ARCH_DECL_PROTECT(old_level); \
+ SYS_ARCH_PROTECT(old_level); \
+ var = val; \
+ SYS_ARCH_UNPROTECT(old_level); \
+ } while(0)
+#endif /* SYS_ARCH_SET */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LWIP_SYS_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcp.h
new file mode 100644
index 000000000..8f6b9d3c1
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcp.h
@@ -0,0 +1,699 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_TCP_H__
+#define __LWIP_TCP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/sys.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/ip.h"
+#include "lwip/icmp.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct tcp_pcb;
+
+/* Functions for interfacing with TCP: */
+
+/* Lower layer interface to TCP: */
+#define tcp_init() /* Compatibility define, not init needed. */
+void tcp_tmr (void); /* Must be called every
+ TCP_TMR_INTERVAL
+ ms. (Typically 250 ms). */
+/* Application program's interface: */
+struct tcp_pcb * tcp_new (void);
+struct tcp_pcb * tcp_alloc (u8_t prio);
+
+void tcp_arg (struct tcp_pcb *pcb, void *arg);
+void tcp_accept (struct tcp_pcb *pcb,
+ err_t (* accept)(void *arg, struct tcp_pcb *newpcb,
+ err_t err));
+void tcp_recv (struct tcp_pcb *pcb,
+ err_t (* recv)(void *arg, struct tcp_pcb *tpcb,
+ struct pbuf *p, err_t err));
+void tcp_sent (struct tcp_pcb *pcb,
+ err_t (* sent)(void *arg, struct tcp_pcb *tpcb,
+ u16_t len));
+void tcp_poll (struct tcp_pcb *pcb,
+ err_t (* poll)(void *arg, struct tcp_pcb *tpcb),
+ u8_t interval);
+void tcp_err (struct tcp_pcb *pcb,
+ void (* err)(void *arg, err_t err));
+
+#define tcp_mss(pcb) ((pcb)->mss)
+#define tcp_sndbuf(pcb) ((pcb)->snd_buf)
+
+#if TCP_LISTEN_BACKLOG
+#define tcp_accepted(pcb) (((struct tcp_pcb_listen *)(pcb))->accepts_pending--)
+#else /* TCP_LISTEN_BACKLOG */
+#define tcp_accepted(pcb)
+#endif /* TCP_LISTEN_BACKLOG */
+
+void tcp_recved (struct tcp_pcb *pcb, u16_t len);
+err_t tcp_bind (struct tcp_pcb *pcb, struct ip_addr *ipaddr,
+ u16_t port);
+err_t tcp_connect (struct tcp_pcb *pcb, struct ip_addr *ipaddr,
+ u16_t port, err_t (* connected)(void *arg,
+ struct tcp_pcb *tpcb,
+ err_t err));
+
+struct tcp_pcb * tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog);
+#define tcp_listen(pcb) tcp_listen_with_backlog(pcb, TCP_DEFAULT_LISTEN_BACKLOG)
+
+void tcp_abandon (struct tcp_pcb *pcb, int reset);
+#define tcp_abort(pcb) tcp_abandon((pcb), 1)
+err_t tcp_close (struct tcp_pcb *pcb);
+
+/* Flags for "apiflags" parameter in tcp_write and tcp_enqueue */
+#define TCP_WRITE_FLAG_COPY 0x01
+#define TCP_WRITE_FLAG_MORE 0x02
+
+err_t tcp_write (struct tcp_pcb *pcb, const void *dataptr, u16_t len,
+ u8_t apiflags);
+
+void tcp_setprio (struct tcp_pcb *pcb, u8_t prio);
+
+#define TCP_PRIO_MIN 1
+#define TCP_PRIO_NORMAL 64
+#define TCP_PRIO_MAX 127
+
+/* It is also possible to call these two functions at the right
+ intervals (instead of calling tcp_tmr()). */
+void tcp_slowtmr (void);
+void tcp_fasttmr (void);
+
+
+/* Only used by IP to pass a TCP segment to TCP: */
+void tcp_input (struct pbuf *p, struct netif *inp);
+/* Used within the TCP code only: */
+err_t tcp_output (struct tcp_pcb *pcb);
+void tcp_rexmit (struct tcp_pcb *pcb);
+void tcp_rexmit_rto (struct tcp_pcb *pcb);
+u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb);
+
+/**
+ * This is the Nagle algorithm: try to combine user data to send as few TCP
+ * segments as possible. Only send if
+ * - no previously transmitted data on the connection remains unacknowledged or
+ * - the TF_NODELAY flag is set (nagle algorithm turned off for this pcb) or
+ * - the only unsent segment is at least pcb->mss bytes long (or there is more
+ * than one unsent segment - with lwIP, this can happen although unsent->len < mss)
+ */
+#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \
+ ((tpcb)->flags & TF_NODELAY) || \
+ (((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \
+ ((tpcb)->unsent->len >= (tpcb)->mss))) \
+ ) ? 1 : 0)
+#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK)
+
+
+#define TCP_SEQ_LT(a,b) ((s32_t)((a)-(b)) < 0)
+#define TCP_SEQ_LEQ(a,b) ((s32_t)((a)-(b)) <= 0)
+#define TCP_SEQ_GT(a,b) ((s32_t)((a)-(b)) > 0)
+#define TCP_SEQ_GEQ(a,b) ((s32_t)((a)-(b)) >= 0)
+/* is b<=a<=c? */
+#if 0 /* see bug #10548 */
+#define TCP_SEQ_BETWEEN(a,b,c) ((c)-(b) >= (a)-(b))
+#endif
+#define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c))
+#define TCP_FIN 0x01U
+#define TCP_SYN 0x02U
+#define TCP_RST 0x04U
+#define TCP_PSH 0x08U
+#define TCP_ACK 0x10U
+#define TCP_URG 0x20U
+#define TCP_ECE 0x40U
+#define TCP_CWR 0x80U
+
+#define TCP_FLAGS 0x3fU
+
+/* Length of the TCP header, excluding options. */
+#define TCP_HLEN 20
+
+#ifndef TCP_TMR_INTERVAL
+#define TCP_TMR_INTERVAL 250 /* The TCP timer interval in milliseconds. */
+#endif /* TCP_TMR_INTERVAL */
+
+#ifndef TCP_FAST_INTERVAL
+#define TCP_FAST_INTERVAL TCP_TMR_INTERVAL /* the fine grained timeout in milliseconds */
+#endif /* TCP_FAST_INTERVAL */
+
+#ifndef TCP_SLOW_INTERVAL
+#define TCP_SLOW_INTERVAL (2*TCP_TMR_INTERVAL) /* the coarse grained timeout in milliseconds */
+#endif /* TCP_SLOW_INTERVAL */
+
+#define TCP_FIN_WAIT_TIMEOUT 20000 /* milliseconds */
+#define TCP_SYN_RCVD_TIMEOUT 20000 /* milliseconds */
+
+#define TCP_OOSEQ_TIMEOUT 6U /* x RTO */
+
+#ifndef TCP_MSL
+#define TCP_MSL 60000UL /* The maximum segment lifetime in milliseconds */
+#endif
+
+/* Keepalive values, compliant with RFC 1122. Don't change this unless you know what you're doing */
+#ifndef TCP_KEEPIDLE_DEFAULT
+#define TCP_KEEPIDLE_DEFAULT 7200000UL /* Default KEEPALIVE timer in milliseconds */
+#endif
+
+#ifndef TCP_KEEPINTVL_DEFAULT
+#define TCP_KEEPINTVL_DEFAULT 75000UL /* Default Time between KEEPALIVE probes in milliseconds */
+#endif
+
+#ifndef TCP_KEEPCNT_DEFAULT
+#define TCP_KEEPCNT_DEFAULT 9U /* Default Counter for KEEPALIVE probes */
+#endif
+
+#define TCP_MAXIDLE TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT /* Maximum KEEPALIVE probe time */
+
+/* Fields are (of course) in network byte order.
+ * Some fields are converted to host byte order in tcp_input().
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct tcp_hdr {
+ PACK_STRUCT_FIELD(u16_t src);
+ PACK_STRUCT_FIELD(u16_t dest);
+ PACK_STRUCT_FIELD(u32_t seqno);
+ PACK_STRUCT_FIELD(u32_t ackno);
+ PACK_STRUCT_FIELD(u16_t _hdrlen_rsvd_flags);
+ PACK_STRUCT_FIELD(u16_t wnd);
+ PACK_STRUCT_FIELD(u16_t chksum);
+ PACK_STRUCT_FIELD(u16_t urgp);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#define TCPH_OFFSET(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 8)
+#define TCPH_HDRLEN(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 12)
+#define TCPH_FLAGS(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS)
+
+#define TCPH_OFFSET_SET(phdr, offset) (phdr)->_hdrlen_rsvd_flags = htons(((offset) << 8) | TCPH_FLAGS(phdr))
+#define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | TCPH_FLAGS(phdr))
+#define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = htons((ntohs((phdr)->_hdrlen_rsvd_flags) & ~TCP_FLAGS) | (flags))
+#define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = htons(ntohs((phdr)->_hdrlen_rsvd_flags) | (flags))
+#define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = htons(ntohs((phdr)->_hdrlen_rsvd_flags) | (TCPH_FLAGS(phdr) & ~(flags)) )
+
+#define TCP_TCPLEN(seg) ((seg)->len + ((TCPH_FLAGS((seg)->tcphdr) & TCP_FIN || \
+ TCPH_FLAGS((seg)->tcphdr) & TCP_SYN)? 1: 0))
+
+enum tcp_state {
+ CLOSED = 0,
+ LISTEN = 1,
+ SYN_SENT = 2,
+ SYN_RCVD = 3,
+ ESTABLISHED = 4,
+ FIN_WAIT_1 = 5,
+ FIN_WAIT_2 = 6,
+ CLOSE_WAIT = 7,
+ CLOSING = 8,
+ LAST_ACK = 9,
+ TIME_WAIT = 10
+};
+
+/** Flags used on input processing, not on pcb->flags
+*/
+#define TF_RESET (u8_t)0x08U /* Connection was reset. */
+#define TF_CLOSED (u8_t)0x10U /* Connection was sucessfully closed. */
+#define TF_GOT_FIN (u8_t)0x20U /* Connection was closed by the remote end. */
+
+
+#if LWIP_CALLBACK_API
+ /* Function to call when a listener has been connected.
+ * @param arg user-supplied argument (tcp_pcb.callback_arg)
+ * @param pcb a new tcp_pcb that now is connected
+ * @param err an error argument (TODO: that is current always ERR_OK?)
+ * @return ERR_OK: accept the new connection,
+ * any other err_t abortsthe new connection
+ */
+#define DEF_ACCEPT_CALLBACK err_t (* accept)(void *arg, struct tcp_pcb *newpcb, err_t err)
+#else /* LWIP_CALLBACK_API */
+#define DEF_ACCEPT_CALLBACK
+#endif /* LWIP_CALLBACK_API */
+
+/**
+ * members common to struct tcp_pcb and struct tcp_listen_pcb
+ */
+#define TCP_PCB_COMMON(type) \
+ type *next; /* for the linked list */ \
+ enum tcp_state state; /* TCP state */ \
+ u8_t prio; \
+ void *callback_arg; \
+ /* ports are in host byte order */ \
+ u16_t local_port; \
+ /* the accept callback for listen- and normal pcbs, if LWIP_CALLBACK_API */ \
+ DEF_ACCEPT_CALLBACK
+
+
+/* the TCP protocol control block */
+struct tcp_pcb {
+/** common PCB members */
+ IP_PCB;
+/** protocol specific PCB members */
+ TCP_PCB_COMMON(struct tcp_pcb);
+
+ /* ports are in host byte order */
+ u16_t remote_port;
+
+ u8_t flags;
+#define TF_ACK_DELAY ((u8_t)0x01U) /* Delayed ACK. */
+#define TF_ACK_NOW ((u8_t)0x02U) /* Immediate ACK. */
+#define TF_INFR ((u8_t)0x04U) /* In fast recovery. */
+#define TF_TIMESTAMP ((u8_t)0x08U) /* Timestamp option enabled */
+#define TF_FIN ((u8_t)0x20U) /* Connection was closed locally (FIN segment enqueued). */
+#define TF_NODELAY ((u8_t)0x40U) /* Disable Nagle algorithm */
+#define TF_NAGLEMEMERR ((u8_t)0x80U) /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */
+
+ /* the rest of the fields are in host byte order
+ as we have to do some math with them */
+ /* receiver variables */
+ u32_t rcv_nxt; /* next seqno expected */
+ u16_t rcv_wnd; /* receiver window available */
+ u16_t rcv_ann_wnd; /* receiver window to announce */
+ u32_t rcv_ann_right_edge; /* announced right edge of window */
+
+ /* Timers */
+ u32_t tmr;
+ u8_t polltmr, pollinterval;
+
+ /* Retransmission timer. */
+ s16_t rtime;
+
+ u16_t mss; /* maximum segment size */
+
+ /* RTT (round trip time) estimation variables */
+ u32_t rttest; /* RTT estimate in 500ms ticks */
+ u32_t rtseq; /* sequence number being timed */
+ s16_t sa, sv; /* @todo document this */
+
+ s16_t rto; /* retransmission time-out */
+ u8_t nrtx; /* number of retransmissions */
+
+ /* fast retransmit/recovery */
+ u32_t lastack; /* Highest acknowledged seqno. */
+ u8_t dupacks;
+
+ /* congestion avoidance/control variables */
+ u16_t cwnd;
+ u16_t ssthresh;
+
+ /* sender variables */
+ u32_t snd_nxt; /* next new seqno to be sent */
+ u16_t snd_wnd; /* sender window */
+ u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last
+ window update. */
+ u32_t snd_lbb; /* Sequence number of next byte to be buffered. */
+
+ u16_t acked;
+
+ u16_t snd_buf; /* Available buffer space for sending (in bytes). */
+#define TCP_SNDQUEUELEN_OVERFLOW (0xffff-3)
+ u16_t snd_queuelen; /* Available buffer space for sending (in tcp_segs). */
+
+
+ /* These are ordered by sequence number: */
+ struct tcp_seg *unsent; /* Unsent (queued) segments. */
+ struct tcp_seg *unacked; /* Sent but unacknowledged segments. */
+#if TCP_QUEUE_OOSEQ
+ struct tcp_seg *ooseq; /* Received out of sequence segments. */
+#endif /* TCP_QUEUE_OOSEQ */
+
+ struct pbuf *refused_data; /* Data previously received but not yet taken by upper layer */
+
+#if LWIP_CALLBACK_API
+ /* Function to be called when more send buffer space is available.
+ * @param arg user-supplied argument (tcp_pcb.callback_arg)
+ * @param pcb the tcp_pcb which has send buffer space available
+ * @param space the amount of bytes available
+ * @return ERR_OK: try to send some data by calling tcp_output
+ */
+ err_t (* sent)(void *arg, struct tcp_pcb *pcb, u16_t space);
+
+ /* Function to be called when (in-sequence) data has arrived.
+ * @param arg user-supplied argument (tcp_pcb.callback_arg)
+ * @param pcb the tcp_pcb for which data has arrived
+ * @param p the packet buffer which arrived
+ * @param err an error argument (TODO: that is current always ERR_OK?)
+ * @return ERR_OK: try to send some data by calling tcp_output
+ */
+ err_t (* recv)(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err);
+
+ /* Function to be called when a connection has been set up.
+ * @param arg user-supplied argument (tcp_pcb.callback_arg)
+ * @param pcb the tcp_pcb that now is connected
+ * @param err an error argument (TODO: that is current always ERR_OK?)
+ * @return value is currently ignored
+ */
+ err_t (* connected)(void *arg, struct tcp_pcb *pcb, err_t err);
+
+ /* Function which is called periodically.
+ * The period can be adjusted in multiples of the TCP slow timer interval
+ * by changing tcp_pcb.polltmr.
+ * @param arg user-supplied argument (tcp_pcb.callback_arg)
+ * @param pcb the tcp_pcb to poll for
+ * @return ERR_OK: try to send some data by calling tcp_output
+ */
+ err_t (* poll)(void *arg, struct tcp_pcb *pcb);
+
+ /* Function to be called whenever a fatal error occurs.
+ * There is no pcb parameter since most of the times, the pcb is
+ * already deallocated (or there is no pcb) when this function is called.
+ * @param arg user-supplied argument (tcp_pcb.callback_arg)
+ * @param err an indication why the error callback is called:
+ * ERR_ABRT: aborted through tcp_abort or by a TCP timer
+ * ERR_RST: the connection was reset by the remote host
+ */
+ void (* errf)(void *arg, err_t err);
+#endif /* LWIP_CALLBACK_API */
+
+#if LWIP_TCP_TIMESTAMPS
+ u32_t ts_lastacksent;
+ u32_t ts_recent;
+#endif /* LWIP_TCP_TIMESTAMPS */
+
+ /* idle time before KEEPALIVE is sent */
+ u32_t keep_idle;
+#if LWIP_TCP_KEEPALIVE
+ u32_t keep_intvl;
+ u32_t keep_cnt;
+#endif /* LWIP_TCP_KEEPALIVE */
+
+ /* Persist timer counter */
+ u32_t persist_cnt;
+ /* Persist timer back-off */
+ u8_t persist_backoff;
+
+ /* KEEPALIVE counter */
+ u8_t keep_cnt_sent;
+};
+
+struct tcp_pcb_listen {
+/* Common members of all PCB types */
+ IP_PCB;
+/* Protocol specific PCB members */
+ TCP_PCB_COMMON(struct tcp_pcb_listen);
+
+#if TCP_LISTEN_BACKLOG
+ u8_t backlog;
+ u8_t accepts_pending;
+#endif /* TCP_LISTEN_BACKLOG */
+};
+
+#if LWIP_EVENT_API
+
+enum lwip_event {
+ LWIP_EVENT_ACCEPT,
+ LWIP_EVENT_SENT,
+ LWIP_EVENT_RECV,
+ LWIP_EVENT_CONNECTED,
+ LWIP_EVENT_POLL,
+ LWIP_EVENT_ERR
+};
+
+err_t lwip_tcp_event(void *arg, struct tcp_pcb *pcb,
+ enum lwip_event,
+ struct pbuf *p,
+ u16_t size,
+ err_t err);
+
+#define TCP_EVENT_ACCEPT(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+ LWIP_EVENT_ACCEPT, NULL, 0, err)
+#define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+ LWIP_EVENT_SENT, NULL, space, ERR_OK)
+#define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+ LWIP_EVENT_RECV, (p), 0, (err))
+#define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+ LWIP_EVENT_CONNECTED, NULL, 0, (err))
+#define TCP_EVENT_POLL(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
+ LWIP_EVENT_POLL, NULL, 0, ERR_OK)
+#define TCP_EVENT_ERR(errf,arg,err) lwip_tcp_event((arg), NULL, \
+ LWIP_EVENT_ERR, NULL, 0, (err))
+#else /* LWIP_EVENT_API */
+
+#define TCP_EVENT_ACCEPT(pcb,err,ret) \
+ do { \
+ if((pcb)->accept != NULL) \
+ (ret) = (pcb)->accept((pcb)->callback_arg,(pcb),(err)); \
+ else (ret) = ERR_OK; \
+ } while (0)
+
+#define TCP_EVENT_SENT(pcb,space,ret) \
+ do { \
+ if((pcb)->sent != NULL) \
+ (ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space)); \
+ else (ret) = ERR_OK; \
+ } while (0)
+
+#define TCP_EVENT_RECV(pcb,p,err,ret) \
+ do { \
+ if((pcb)->recv != NULL) { \
+ (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err)); \
+ } else { \
+ (ret) = ERR_OK; \
+ if (p != NULL) \
+ pbuf_free(p); \
+ } \
+ } while (0)
+
+#define TCP_EVENT_CONNECTED(pcb,err,ret) \
+ do { \
+ if((pcb)->connected != NULL) \
+ (ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \
+ else (ret) = ERR_OK; \
+ } while (0)
+
+#define TCP_EVENT_POLL(pcb,ret) \
+ do { \
+ if((pcb)->poll != NULL) \
+ (ret) = (pcb)->poll((pcb)->callback_arg,(pcb)); \
+ else (ret) = ERR_OK; \
+ } while (0)
+
+#define TCP_EVENT_ERR(errf,arg,err) \
+ do { \
+ if((errf) != NULL) \
+ (errf)((arg),(err)); \
+ } while (0)
+
+#endif /* LWIP_EVENT_API */
+
+/* This structure represents a TCP segment on the unsent and unacked queues */
+struct tcp_seg {
+ struct tcp_seg *next; /* used when putting segements on a queue */
+ struct pbuf *p; /* buffer containing data + TCP header */
+ void *dataptr; /* pointer to the TCP data in the pbuf */
+ u16_t len; /* the TCP length of this segment */
+ u8_t flags;
+#define TF_SEG_OPTS_MSS (u8_t)0x01U /* Include MSS option. */
+#define TF_SEG_OPTS_TS (u8_t)0x02U /* Include timestamp option. */
+ struct tcp_hdr *tcphdr; /* the TCP header */
+};
+
+#define LWIP_TCP_OPT_LENGTH(flags) \
+ (flags & TF_SEG_OPTS_MSS ? 4 : 0) + \
+ (flags & TF_SEG_OPTS_TS ? 12 : 0)
+
+/** This returns a TCP header option for MSS in an u32_t */
+#define TCP_BUILD_MSS_OPTION(x) (x) = htonl(((u32_t)2 << 24) | \
+ ((u32_t)4 << 16) | \
+ (((u32_t)TCP_MSS / 256) << 8) | \
+ (TCP_MSS & 255))
+
+/* Internal functions and global variables: */
+struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb);
+void tcp_pcb_purge(struct tcp_pcb *pcb);
+void tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb);
+
+u8_t tcp_segs_free(struct tcp_seg *seg);
+u8_t tcp_seg_free(struct tcp_seg *seg);
+struct tcp_seg *tcp_seg_copy(struct tcp_seg *seg);
+
+#define tcp_ack(pcb) \
+ do { \
+ if((pcb)->flags & TF_ACK_DELAY) { \
+ (pcb)->flags &= ~TF_ACK_DELAY; \
+ (pcb)->flags |= TF_ACK_NOW; \
+ tcp_output(pcb); \
+ } \
+ else { \
+ (pcb)->flags |= TF_ACK_DELAY; \
+ } \
+ } while (0)
+
+#define tcp_ack_now(pcb) \
+ do { \
+ (pcb)->flags |= TF_ACK_NOW; \
+ tcp_output(pcb); \
+ } while (0)
+
+err_t tcp_send_ctrl(struct tcp_pcb *pcb, u8_t flags);
+err_t tcp_enqueue(struct tcp_pcb *pcb, void *dataptr, u16_t len,
+ u8_t flags, u8_t apiflags, u8_t optflags);
+
+void tcp_rexmit_seg(struct tcp_pcb *pcb, struct tcp_seg *seg);
+
+void tcp_rst(u32_t seqno, u32_t ackno,
+ struct ip_addr *local_ip, struct ip_addr *remote_ip,
+ u16_t local_port, u16_t remote_port);
+
+u32_t tcp_next_iss(void);
+
+void tcp_keepalive(struct tcp_pcb *pcb);
+void tcp_zero_window_probe(struct tcp_pcb *pcb);
+
+#if TCP_CALCULATE_EFF_SEND_MSS
+u16_t tcp_eff_send_mss(u16_t sendmss, struct ip_addr *addr);
+#endif /* TCP_CALCULATE_EFF_SEND_MSS */
+
+extern struct tcp_pcb *tcp_input_pcb;
+extern u32_t tcp_ticks;
+
+#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG
+void tcp_debug_print(struct tcp_hdr *tcphdr);
+void tcp_debug_print_flags(u8_t flags);
+void tcp_debug_print_state(enum tcp_state s);
+void tcp_debug_print_pcbs(void);
+s16_t tcp_pcbs_sane(void);
+#else
+# define tcp_debug_print(tcphdr)
+# define tcp_debug_print_flags(flags)
+# define tcp_debug_print_state(s)
+# define tcp_debug_print_pcbs()
+# define tcp_pcbs_sane() 1
+#endif /* TCP_DEBUG */
+
+#if NO_SYS
+#define tcp_timer_needed()
+#else
+void tcp_timer_needed(void);
+#endif
+
+/* The TCP PCB lists. */
+union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */
+ struct tcp_pcb_listen *listen_pcbs;
+ struct tcp_pcb *pcbs;
+};
+extern union tcp_listen_pcbs_t tcp_listen_pcbs;
+extern struct tcp_pcb *tcp_active_pcbs; /* List of all TCP PCBs that are in a
+ state in which they accept or send
+ data. */
+extern struct tcp_pcb *tcp_tw_pcbs; /* List of all TCP PCBs in TIME-WAIT. */
+
+extern struct tcp_pcb *tcp_tmp_pcb; /* Only used for temporary storage. */
+
+/* Axioms about the above lists:
+ 1) Every TCP PCB that is not CLOSED is in one of the lists.
+ 2) A PCB is only in one of the lists.
+ 3) All PCBs in the tcp_listen_pcbs list is in LISTEN state.
+ 4) All PCBs in the tcp_tw_pcbs list is in TIME-WAIT state.
+*/
+
+/* Define two macros, TCP_REG and TCP_RMV that registers a TCP PCB
+ with a PCB list or removes a PCB from a list, respectively. */
+#if 0
+#define TCP_REG(pcbs, npcb) do {\
+ LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %d\n", npcb, npcb->local_port)); \
+ for(tcp_tmp_pcb = *pcbs; \
+ tcp_tmp_pcb != NULL; \
+ tcp_tmp_pcb = tcp_tmp_pcb->next) { \
+ LWIP_ASSERT("TCP_REG: already registered\n", tcp_tmp_pcb != npcb); \
+ } \
+ LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", npcb->state != CLOSED); \
+ npcb->next = *pcbs; \
+ LWIP_ASSERT("TCP_REG: npcb->next != npcb", npcb->next != npcb); \
+ *(pcbs) = npcb; \
+ LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
+ tcp_timer_needed(); \
+ } while(0)
+#define TCP_RMV(pcbs, npcb) do { \
+ LWIP_ASSERT("TCP_RMV: pcbs != NULL", *pcbs != NULL); \
+ LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", npcb, *pcbs)); \
+ if(*pcbs == npcb) { \
+ *pcbs = (*pcbs)->next; \
+ } else for(tcp_tmp_pcb = *pcbs; tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \
+ if(tcp_tmp_pcb->next != NULL && tcp_tmp_pcb->next == npcb) { \
+ tcp_tmp_pcb->next = npcb->next; \
+ break; \
+ } \
+ } \
+ npcb->next = NULL; \
+ LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
+ LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", npcb, *pcbs)); \
+ } while(0)
+
+#else /* LWIP_DEBUG */
+
+#define TCP_REG(pcbs, npcb) \
+ do { \
+ npcb->next = *pcbs; \
+ *(pcbs) = npcb; \
+ tcp_timer_needed(); \
+ } while (0)
+
+#define TCP_RMV(pcbs, npcb) \
+ do { \
+ if(*(pcbs) == npcb) { \
+ (*(pcbs)) = (*pcbs)->next; \
+ } \
+ else { \
+ for(tcp_tmp_pcb = *pcbs; \
+ tcp_tmp_pcb != NULL; \
+ tcp_tmp_pcb = tcp_tmp_pcb->next) { \
+ if(tcp_tmp_pcb->next != NULL && tcp_tmp_pcb->next == npcb) { \
+ tcp_tmp_pcb->next = npcb->next; \
+ break; \
+ } \
+ } \
+ } \
+ npcb->next = NULL; \
+ } while(0)
+
+#endif /* LWIP_DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_TCP */
+
+#endif /* __LWIP_TCP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcpip.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcpip.h
new file mode 100644
index 000000000..75393ee91
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/tcpip.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_TCPIP_H__
+#define __LWIP_TCPIP_H__
+
+#include "lwip/opt.h"
+
+#if !NO_SYS /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/api_msg.h"
+#include "lwip/netifapi.h"
+#include "lwip/pbuf.h"
+#include "lwip/api.h"
+#include "lwip/sys.h"
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if LWIP_TCPIP_CORE_LOCKING
+/** The global semaphore to lock the stack. */
+extern sys_sem_t lock_tcpip_core;
+#define LOCK_TCPIP_CORE() sys_sem_wait(lock_tcpip_core)
+#define UNLOCK_TCPIP_CORE() sys_sem_signal(lock_tcpip_core)
+#define TCPIP_APIMSG(m) tcpip_apimsg_lock(m)
+#define TCPIP_APIMSG_ACK(m)
+#define TCPIP_NETIFAPI(m) tcpip_netifapi_lock(m)
+#define TCPIP_NETIFAPI_ACK(m)
+#else
+#define LOCK_TCPIP_CORE()
+#define UNLOCK_TCPIP_CORE()
+#define TCPIP_APIMSG(m) tcpip_apimsg(m)
+#define TCPIP_APIMSG_ACK(m) sys_sem_signal(m->conn->op_completed)
+#define TCPIP_NETIFAPI(m) tcpip_netifapi(m)
+#define TCPIP_NETIFAPI_ACK(m) sys_sem_signal(m->sem)
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+
+void tcpip_init(void (* tcpip_init_done)(void *), void *arg);
+
+#if LWIP_NETCONN
+err_t tcpip_apimsg(struct api_msg *apimsg);
+#if LWIP_TCPIP_CORE_LOCKING
+err_t tcpip_apimsg_lock(struct api_msg *apimsg);
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+#endif /* LWIP_NETCONN */
+
+err_t tcpip_input(struct pbuf *p, struct netif *inp);
+
+#if LWIP_NETIF_API
+err_t tcpip_netifapi(struct netifapi_msg *netifapimsg);
+#if LWIP_TCPIP_CORE_LOCKING
+err_t tcpip_netifapi_lock(struct netifapi_msg *netifapimsg);
+#endif /* LWIP_TCPIP_CORE_LOCKING */
+#endif /* LWIP_NETIF_API */
+
+err_t tcpip_callback_with_block(void (*f)(void *ctx), void *ctx, u8_t block);
+#define tcpip_callback(f, ctx) tcpip_callback_with_block(f, ctx, 1)
+
+/* free pbufs or heap memory from another context without blocking */
+err_t pbuf_free_callback(struct pbuf *p);
+err_t mem_free_callback(void *m);
+
+err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);
+err_t tcpip_untimeout(sys_timeout_handler h, void *arg);
+
+enum tcpip_msg_type {
+#if LWIP_NETCONN
+ TCPIP_MSG_API,
+#endif /* LWIP_NETCONN */
+ TCPIP_MSG_INPKT,
+#if LWIP_NETIF_API
+ TCPIP_MSG_NETIFAPI,
+#endif /* LWIP_NETIF_API */
+ TCPIP_MSG_CALLBACK,
+ TCPIP_MSG_TIMEOUT,
+ TCPIP_MSG_UNTIMEOUT
+};
+
+struct tcpip_msg {
+ enum tcpip_msg_type type;
+ sys_sem_t *sem;
+ union {
+#if LWIP_NETCONN
+ struct api_msg *apimsg;
+#endif /* LWIP_NETCONN */
+#if LWIP_NETIF_API
+ struct netifapi_msg *netifapimsg;
+#endif /* LWIP_NETIF_API */
+ struct {
+ struct pbuf *p;
+ struct netif *netif;
+ } inp;
+ struct {
+ void (*f)(void *ctx);
+ void *ctx;
+ } cb;
+ struct {
+ u32_t msecs;
+ sys_timeout_handler h;
+ void *arg;
+ } tmo;
+ } msg;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !NO_SYS */
+
+#endif /* __LWIP_TCPIP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/udp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/udp.h
new file mode 100644
index 000000000..d7b2a3820
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/lwip/udp.h
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_UDP_H__
+#define __LWIP_UDP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/netif.h"
+#include "lwip/ip_addr.h"
+#include "lwip/ip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define UDP_HLEN 8
+
+/* Fields are (of course) in network byte order. */
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct udp_hdr {
+ PACK_STRUCT_FIELD(u16_t src);
+ PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */
+ PACK_STRUCT_FIELD(u16_t len);
+ PACK_STRUCT_FIELD(u16_t chksum);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#define UDP_FLAGS_NOCHKSUM 0x01U
+#define UDP_FLAGS_UDPLITE 0x02U
+#define UDP_FLAGS_CONNECTED 0x04U
+
+struct udp_pcb {
+/* Common members of all PCB types */
+ IP_PCB;
+
+/* Protocol specific PCB members */
+
+ struct udp_pcb *next;
+
+ u8_t flags;
+ /* ports are in host byte order */
+ u16_t local_port, remote_port;
+
+#if LWIP_IGMP
+ /* outgoing network interface for multicast packets */
+ struct ip_addr multicast_ip;
+#endif /* LWIP_IGMP */
+
+#if LWIP_UDPLITE
+ /* used for UDP_LITE only */
+ u16_t chksum_len_rx, chksum_len_tx;
+#endif /* LWIP_UDPLITE */
+
+ /* receive callback function
+ * addr and port are in same byte order as in the pcb
+ * The callback is responsible for freeing the pbuf
+ * if it's not used any more.
+ *
+ * @param arg user supplied argument (udp_pcb.recv_arg)
+ * @param pcb the udp_pcb which received data
+ * @param p the packet buffer that was received
+ * @param addr the remote IP address from which the packet was received
+ * @param port the remote port from which the packet was received
+ */
+ void (* recv)(void *arg, struct udp_pcb *pcb, struct pbuf *p,
+ struct ip_addr *addr, u16_t port);
+ /* user-supplied argument for the recv callback */
+ void *recv_arg;
+};
+/* udp_pcbs export for exernal reference (e.g. SNMP agent) */
+extern struct udp_pcb *udp_pcbs;
+
+/* The following functions is the application layer interface to the
+ UDP code. */
+struct udp_pcb * udp_new (void);
+void udp_remove (struct udp_pcb *pcb);
+err_t udp_bind (struct udp_pcb *pcb, struct ip_addr *ipaddr,
+ u16_t port);
+err_t udp_connect (struct udp_pcb *pcb, struct ip_addr *ipaddr,
+ u16_t port);
+void udp_disconnect (struct udp_pcb *pcb);
+void udp_recv (struct udp_pcb *pcb,
+ void (* recv)(void *arg, struct udp_pcb *upcb,
+ struct pbuf *p,
+ struct ip_addr *addr,
+ u16_t port),
+ void *recv_arg);
+err_t udp_sendto_if (struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port, struct netif *netif);
+err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port);
+err_t udp_send (struct udp_pcb *pcb, struct pbuf *p);
+
+#define udp_flags(pcb) ((pcb)->flags)
+#define udp_setflags(pcb, f) ((pcb)->flags = (f))
+
+/* The following functions are the lower layer interface to UDP. */
+void udp_input (struct pbuf *p, struct netif *inp);
+
+#define udp_init() /* Compatibility define, not init needed. */
+
+#if UDP_DEBUG
+void udp_debug_print(struct udp_hdr *udphdr);
+#else
+#define udp_debug_print(udphdr)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_UDP */
+
+#endif /* __LWIP_UDP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/etharp.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/etharp.h
new file mode 100644
index 000000000..db691d91d
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/etharp.h
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
+ * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __NETIF_ETHARP_H__
+#define __NETIF_ETHARP_H__
+
+#include "lwip/opt.h"
+
+#if LWIP_ARP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/pbuf.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netif.h"
+#include "lwip/ip.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef ETH_PAD_SIZE
+#define ETH_PAD_SIZE 0
+#endif
+
+#ifndef ETHARP_HWADDR_LEN
+#define ETHARP_HWADDR_LEN 6
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct eth_addr {
+ PACK_STRUCT_FIELD(u8_t addr[ETHARP_HWADDR_LEN]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct eth_hdr {
+#if ETH_PAD_SIZE
+ PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
+#endif
+ PACK_STRUCT_FIELD(struct eth_addr dest);
+ PACK_STRUCT_FIELD(struct eth_addr src);
+ PACK_STRUCT_FIELD(u16_t type);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** the ARP message */
+struct etharp_hdr {
+ PACK_STRUCT_FIELD(struct eth_hdr ethhdr);
+ PACK_STRUCT_FIELD(u16_t hwtype);
+ PACK_STRUCT_FIELD(u16_t proto);
+ PACK_STRUCT_FIELD(u16_t _hwlen_protolen);
+ PACK_STRUCT_FIELD(u16_t opcode);
+ PACK_STRUCT_FIELD(struct eth_addr shwaddr);
+ PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
+ PACK_STRUCT_FIELD(struct eth_addr dhwaddr);
+ PACK_STRUCT_FIELD(struct ip_addr2 dipaddr);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ethip_hdr {
+ PACK_STRUCT_FIELD(struct eth_hdr eth);
+ PACK_STRUCT_FIELD(struct ip_hdr ip);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+/** 5 seconds period */
+#define ARP_TMR_INTERVAL 5000
+
+#define ETHTYPE_ARP 0x0806
+#define ETHTYPE_IP 0x0800
+#define ETHTYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */
+#define ETHTYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */
+
+/** ARP message types (opcodes) */
+#define ARP_REQUEST 1
+#define ARP_REPLY 2
+
+#if ARP_QUEUEING
+/** struct for queueing outgoing packets for unknown address
+ * defined here to be accessed by memp.h
+ */
+struct etharp_q_entry {
+ struct etharp_q_entry *next;
+ struct pbuf *p;
+};
+#endif /* ARP_QUEUEING */
+
+#define etharp_init() /* Compatibility define, not init needed. */
+void etharp_tmr(void);
+s8_t etharp_find_addr(struct netif *netif, struct ip_addr *ipaddr,
+ struct eth_addr **eth_ret, struct ip_addr **ip_ret);
+void etharp_ip_input(struct netif *netif, struct pbuf *p);
+void etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr,
+ struct pbuf *p);
+err_t etharp_output(struct netif *netif, struct pbuf *q, struct ip_addr *ipaddr);
+err_t etharp_query(struct netif *netif, struct ip_addr *ipaddr, struct pbuf *q);
+err_t etharp_request(struct netif *netif, struct ip_addr *ipaddr);
+/** For Ethernet network interfaces, we might want to send "gratuitous ARP";
+ * this is an ARP packet sent by a node in order to spontaneously cause other
+ * nodes to update an entry in their ARP cache.
+ * From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */
+#define etharp_gratuitous(netif) etharp_request((netif), &(netif)->ip_addr)
+
+err_t ethernet_input(struct pbuf *p, struct netif *netif);
+
+#if LWIP_AUTOIP
+err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
+ const struct eth_addr *ethdst_addr,
+ const struct eth_addr *hwsrc_addr, const struct ip_addr *ipsrc_addr,
+ const struct eth_addr *hwdst_addr, const struct ip_addr *ipdst_addr,
+ const u16_t opcode);
+#endif /* LWIP_AUTOIP */
+
+#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETHARP_HWADDR_LEN) == 0)
+
+extern const struct eth_addr ethbroadcast, ethzero;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_ARP */
+
+#endif /* __NETIF_ARP_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/loopif.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/loopif.h
new file mode 100644
index 000000000..304af4b39
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/loopif.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __NETIF_LOOPIF_H__
+#define __NETIF_LOOPIF_H__
+
+#include "lwip/opt.h"
+#include "lwip/netif.h"
+#include "lwip/err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !LWIP_NETIF_LOOPBACK_MULTITHREADING
+#define loopif_poll netif_poll
+#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
+
+err_t loopif_init(struct netif *netif);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __NETIF_LOOPIF_H__ */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h
new file mode 100644
index 000000000..3aa55aec7
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h
@@ -0,0 +1,161 @@
+/*****************************************************************************
+* ppp_oe.h - PPP Over Ethernet implementation for lwIP.
+*
+* Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc.
+*
+* The authors hereby grant permission to use, copy, modify, distribute,
+* and license this software and its documentation for any purpose, provided
+* that existing copyright notices are retained in all copies and that this
+* notice and the following disclaimer are included verbatim in any
+* distributions. No written agreement, license, or royalty fee is required
+* for any of the authorized uses.
+*
+* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
+* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+******************************************************************************
+* REVISION HISTORY
+*
+* 06-01-01 Marc Boucher <marc@mbsi.ca>
+* Ported to lwIP.
+*****************************************************************************/
+
+
+
+/* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */
+
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Martin Husemann <martin@NetBSD.org>.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef PPP_OE_H
+#define PPP_OE_H
+
+#include "lwip/opt.h"
+
+#if PPPOE_SUPPORT > 0
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct pppoehdr {
+ PACK_STRUCT_FIELD(u8_t vertype);
+ PACK_STRUCT_FIELD(u8_t code);
+ PACK_STRUCT_FIELD(u16_t session);
+ PACK_STRUCT_FIELD(u16_t plen);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct pppoetag {
+ PACK_STRUCT_FIELD(u16_t tag);
+ PACK_STRUCT_FIELD(u16_t len);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+# include "arch/epstruct.h"
+#endif
+
+
+#define PPPOE_STATE_INITIAL 0
+#define PPPOE_STATE_PADI_SENT 1
+#define PPPOE_STATE_PADR_SENT 2
+#define PPPOE_STATE_SESSION 3
+#define PPPOE_STATE_CLOSING 4
+/* passive */
+#define PPPOE_STATE_PADO_SENT 1
+
+#define PPPOE_HEADERLEN sizeof(struct pppoehdr)
+#define PPPOE_VERTYPE 0x11 /* VER=1, TYPE = 1 */
+
+#define PPPOE_TAG_EOL 0x0000 /* end of list */
+#define PPPOE_TAG_SNAME 0x0101 /* service name */
+#define PPPOE_TAG_ACNAME 0x0102 /* access concentrator name */
+#define PPPOE_TAG_HUNIQUE 0x0103 /* host unique */
+#define PPPOE_TAG_ACCOOKIE 0x0104 /* AC cookie */
+#define PPPOE_TAG_VENDOR 0x0105 /* vendor specific */
+#define PPPOE_TAG_RELAYSID 0x0110 /* relay session id */
+#define PPPOE_TAG_SNAME_ERR 0x0201 /* service name error */
+#define PPPOE_TAG_ACSYS_ERR 0x0202 /* AC system error */
+#define PPPOE_TAG_GENERIC_ERR 0x0203 /* gerneric error */
+
+#define PPPOE_CODE_PADI 0x09 /* Active Discovery Initiation */
+#define PPPOE_CODE_PADO 0x07 /* Active Discovery Offer */
+#define PPPOE_CODE_PADR 0x19 /* Active Discovery Request */
+#define PPPOE_CODE_PADS 0x65 /* Active Discovery Session confirmation */
+#define PPPOE_CODE_PADT 0xA7 /* Active Discovery Terminate */
+
+#ifndef ETHERMTU
+#define ETHERMTU 1500
+#endif
+
+/* two byte PPP protocol discriminator, then IP data */
+#define PPPOE_MAXMTU (ETHERMTU-PPPOE_HEADERLEN-2)
+
+struct pppoe_softc;
+
+
+void pppoe_init(void);
+
+err_t pppoe_create(struct netif *ethif, int pd, void (*linkStatusCB)(int pd, int up), struct pppoe_softc **scptr);
+err_t pppoe_destroy(struct netif *ifp);
+
+int pppoe_connect(struct pppoe_softc *sc);
+void pppoe_disconnect(struct pppoe_softc *sc);
+
+void pppoe_disc_input(struct netif *netif, struct pbuf *p);
+void pppoe_data_input(struct netif *netif, struct pbuf *p);
+
+err_t pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb);
+
+extern int pppoe_hdrlen;
+
+#endif /* PPPOE_SUPPORT */
+
+#endif /* PPP_OE_H */
diff --git a/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/slipif.h b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/slipif.h
new file mode 100644
index 000000000..aa08ada4a
--- /dev/null
+++ b/firmware/usrp2/lwip/lwip-1.3.1/src/include/netif/slipif.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2001, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __NETIF_SLIPIF_H__
+#define __NETIF_SLIPIF_H__
+
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+err_t slipif_init(struct netif * netif);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+