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1 office 1 /*
2 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25 * OF SUCH DAMAGE.
26 *
27 * This file is part of the lwIP TCP/IP stack.
28 *
29 * Author: Erik Ekman <erik@kryo.se>
30 *
31 */
32  
33 #include "lwip/init.h"
34 #include "lwip/netif.h"
35 #include "netif/etharp.h"
36 #if LWIP_IPV6
37 #include "lwip/ethip6.h"
38 #include "lwip/nd6.h"
39 #endif
40 #include <string.h>
41 #include <stdio.h>
42  
43 /* no-op send function */
44 static err_t lwip_tx_func(struct netif *netif, struct pbuf *p)
45 {
46 LWIP_UNUSED_ARG(netif);
47 LWIP_UNUSED_ARG(p);
48 return ERR_OK;
49 }
50  
51 static err_t testif_init(struct netif *netif)
52 {
53 netif->name[0] = 'f';
54 netif->name[1] = 'z';
55 netif->output = etharp_output;
56 netif->linkoutput = lwip_tx_func;
57 netif->mtu = 1500;
58 netif->hwaddr_len = 6;
59 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP;
60  
61 netif->hwaddr[0] = 0x00;
62 netif->hwaddr[1] = 0x23;
63 netif->hwaddr[2] = 0xC1;
64 netif->hwaddr[3] = 0xDE;
65 netif->hwaddr[4] = 0xD0;
66 netif->hwaddr[5] = 0x0D;
67  
68 #if LWIP_IPV6
69 netif->output_ip6 = ethip6_output;
70 netif->ip6_autoconfig_enabled = 1;
71 netif_create_ip6_linklocal_address(netif, 1);
72 netif->flags |= NETIF_FLAG_MLD6;
73 #endif
74  
75 return ERR_OK;
76 }
77  
78 static void input_pkt(struct netif *netif, const u8_t *data, size_t len)
79 {
80 struct pbuf *p, *q;
81 err_t err;
82  
83 LWIP_ASSERT("pkt too big", len <= 0xFFFF);
84 p = pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL);
85 LWIP_ASSERT("alloc failed", p);
86 for(q = p; q != NULL; q = q->next) {
87 MEMCPY(q->payload, data, q->len);
88 data += q->len;
89 }
90 err = netif->input(p, netif);
91 if (err != ERR_OK) {
92 pbuf_free(p);
93 }
94 }
95  
96 int main(int argc, char** argv)
97 {
98 struct netif net_test;
99 ip4_addr_t addr;
100 ip4_addr_t netmask;
101 ip4_addr_t gw;
102 u8_t pktbuf[2000];
103 size_t len;
104  
105 lwip_init();
106  
107 IP4_ADDR(&addr, 172, 30, 115, 84);
108 IP4_ADDR(&netmask, 255, 255, 255, 0);
109 IP4_ADDR(&gw, 172, 30, 115, 1);
110  
111 netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input);
112 netif_set_up(&net_test);
113  
114 #if LWIP_IPV6
115 nd6_tmr(); /* tick nd to join multicast groups */
116 #endif
117  
118 if(argc > 1) {
119 FILE* f;
120 const char* filename;
121 printf("reading input from file... ");
122 fflush(stdout);
123 filename = argv[1];
124 LWIP_ASSERT("invalid filename", filename != NULL);
125 f = fopen(filename, "rb");
126 LWIP_ASSERT("open failed", f != NULL);
127 len = fread(pktbuf, 1, sizeof(pktbuf), f);
128 fclose(f);
129 printf("testing file: \"%s\"...\r\n", filename);
130 } else {
131 len = fread(pktbuf, 1, sizeof(pktbuf), stdin);
132 }
133 input_pkt(&net_test, pktbuf, len);
134  
135 return 0;
136 }