1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
// Copyright 2012-2013 Ettus Research LLC
#ifndef INCLUDED_U3_NET_STACK_H
#define INCLUDED_U3_NET_STACK_H
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <wb_pkt_iface64.h>
//----------------------------------------------------------------------
#include <lwip/ip_addr.h>
#include <lwip/ip.h>
#include <lwip/udp.h>
#include <lwip/icmp.h>
#include <if_arp.h>
#include <ethertype.h>
typedef struct
{
uint8_t addr[6];
} eth_mac_addr_t;
typedef struct
{
uint8_t ethno;
uint8_t pad[5];
eth_mac_addr_t dst;
eth_mac_addr_t src;
uint16_t ethertype;
} padded_eth_hdr_t;
//------------------ init stuff ------------------------------------
void u3_net_stack_init(wb_pkt_iface64_config_t *config);
void u3_net_stack_init_eth(const uint8_t ethno, const eth_mac_addr_t *mac, const struct ip_addr *ip, const struct ip_addr *subnet);
const struct ip_addr *u3_net_stack_get_ip_addr(const uint8_t ethno);
const struct ip_addr *u3_net_stack_get_subnet(const uint8_t ethno);
const struct ip_addr *u3_net_stack_get_bcast(const uint8_t ethno);
const eth_mac_addr_t *u3_net_stack_get_mac_addr(const uint8_t ethno);
uint32_t u3_net_stack_get_stat_counts(const uint8_t ethno);
//------------------ udp handling ------------------------------------
typedef void (*u3_net_stack_udp_handler_t)(
const uint8_t,
const struct ip_addr *, const struct ip_addr *,
const uint16_t, const uint16_t,
const void *, const size_t
);
void u3_net_stack_register_udp_handler(
const uint16_t port,
const u3_net_stack_udp_handler_t handler
);
void u3_net_stack_send_udp_pkt(
const uint8_t ethno,
const struct ip_addr *dst,
const uint16_t src_port,
const uint16_t dst_port,
const void *buff,
const size_t num_bytes
);
//------------------ icmp handling ------------------------------------
typedef void (*u3_net_stack_icmp_handler_t)(
const uint8_t,
const struct ip_addr *, const struct ip_addr *,
const uint16_t, const uint16_t,
const void *, const size_t
);
void u3_net_stack_register_icmp_handler(
const uint8_t type,
const uint8_t code,
const u3_net_stack_icmp_handler_t handler
);
void u3_net_stack_send_icmp_pkt(
const uint8_t ethno,
const uint8_t type,
const uint8_t code,
const uint16_t id,
const uint16_t seq,
const struct ip_addr *dst,
const void *buff,
const size_t num_bytes
);
//------------------ entry point ------------------------------------
void u3_net_stack_handle_one(void);
//------------------ arp handling ------------------------------------
void u3_net_stack_send_arp_request(const uint8_t ethno, const struct ip_addr *addr);
//commented out to make private - do we need cache update outside this module?
//void u3_net_stack_arp_cache_update(const struct ip_addr *ip_addr, const eth_mac_addr_t *mac_addr, const uint8_t ethno);
const eth_mac_addr_t *u3_net_stack_arp_cache_lookup(const struct ip_addr *ip_addr);
#endif /* INCLUDED_U3_NET_STACK_H */
|
