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-rw-r--r--firmware/zpu/lib/net_common.h49
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diff --git a/firmware/zpu/lib/net_common.h b/firmware/zpu/lib/net_common.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2009,2010 Ettus Research LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef INCLUDED_NET_COMMON_H
+#define INCLUDED_NET_COMMON_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <net/socket_address.h>
+#include <net/eth_mac_addr.h>
+
+/*
+ * 1's complement sum for IP and UDP headers
+ *
+ * init chksum to zero to start.
+ */
+unsigned int CHKSUM(unsigned int x, unsigned int *chksum);
+
+typedef void (*udp_receiver_t)(struct socket_address src, struct socket_address dst,
+ unsigned char *payload, int payload_len);
+
+void init_udp_listeners(void);
+
+void register_addrs(const eth_mac_addr_t *mac_addr, const struct ip_addr *ip_addr);
+
+void register_udp_listener(int port, udp_receiver_t rcvr);
+
+void send_udp_pkt(int src_port, struct socket_address dst,
+ const void *buf, size_t len);
+
+void handle_eth_packet(uint32_t *p, size_t nlines);
+
+void send_gratuitous_arp(void);
+
+#endif /* INCLUDED_NET_COMMON_H */