| /* |
| * Copyright (c) 2001-2003 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: Erik Ekman <erik@kryo.se> |
| * |
| */ |
| |
| #include "lwip/init.h" |
| #include "lwip/netif.h" |
| #include "lwip/dns.h" |
| #include "netif/etharp.h" |
| #if LWIP_IPV6 |
| #include "lwip/ethip6.h" |
| #include "lwip/nd6.h" |
| #endif |
| |
| #include "lwip/apps/httpd.h" |
| #include "lwip/apps/snmp.h" |
| #include "lwip/apps/lwiperf.h" |
| #include "lwip/apps/mdns.h" |
| |
| #include <string.h> |
| #include <stdio.h> |
| |
| /* This define enables multi packet processing. |
| * For this, the input is interpreted as 2 byte length + data + 2 byte length + data... |
| * #define LWIP_FUZZ_MULTI_PACKET |
| */ |
| #ifdef LWIP_FUZZ_MULTI_PACKET |
| u8_t pktbuf[20000]; |
| #else |
| u8_t pktbuf[2000]; |
| #endif |
| |
| /* no-op send function */ |
| static err_t lwip_tx_func(struct netif *netif, struct pbuf *p) |
| { |
| LWIP_UNUSED_ARG(netif); |
| LWIP_UNUSED_ARG(p); |
| return ERR_OK; |
| } |
| |
| static err_t testif_init(struct netif *netif) |
| { |
| netif->name[0] = 'f'; |
| netif->name[1] = 'z'; |
| netif->output = etharp_output; |
| netif->linkoutput = lwip_tx_func; |
| netif->mtu = 1500; |
| netif->hwaddr_len = 6; |
| netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP; |
| |
| netif->hwaddr[0] = 0x00; |
| netif->hwaddr[1] = 0x23; |
| netif->hwaddr[2] = 0xC1; |
| netif->hwaddr[3] = 0xDE; |
| netif->hwaddr[4] = 0xD0; |
| netif->hwaddr[5] = 0x0D; |
| |
| #if LWIP_IPV6 |
| netif->output_ip6 = ethip6_output; |
| netif->ip6_autoconfig_enabled = 1; |
| netif_create_ip6_linklocal_address(netif, 1); |
| netif->flags |= NETIF_FLAG_MLD6; |
| #endif |
| |
| return ERR_OK; |
| } |
| |
| static void input_pkt(struct netif *netif, const u8_t *data, size_t len) |
| { |
| struct pbuf *p, *q; |
| err_t err; |
| |
| LWIP_ASSERT("pkt too big", len <= 0xFFFF); |
| p = pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL); |
| LWIP_ASSERT("alloc failed", p); |
| for(q = p; q != NULL; q = q->next) { |
| MEMCPY(q->payload, data, q->len); |
| data += q->len; |
| } |
| err = netif->input(p, netif); |
| if (err != ERR_OK) { |
| pbuf_free(p); |
| } |
| } |
| |
| static void input_pkts(struct netif *netif, const u8_t *data, size_t len) |
| { |
| #ifdef LWIP_FUZZ_MULTI_PACKET |
| const u16_t max_packet_size = 1514; |
| const u8_t *ptr = data; |
| size_t rem_len = len; |
| |
| while (rem_len > sizeof(u16_t)) { |
| u16_t frame_len; |
| memcpy(&frame_len, ptr, sizeof(u16_t)); |
| ptr += sizeof(u16_t); |
| rem_len -= sizeof(u16_t); |
| frame_len = htons(frame_len) & 0x7FF; |
| frame_len = LWIP_MIN(frame_len, max_packet_size); |
| if (frame_len > rem_len) { |
| frame_len = (u16_t)rem_len; |
| } |
| if (frame_len != 0) { |
| input_pkt(netif, ptr, frame_len); |
| } |
| ptr += frame_len; |
| rem_len -= frame_len; |
| } |
| #else /* LWIP_FUZZ_MULTI_PACKET */ |
| input_pkt(netif, data, len); |
| #endif /* LWIP_FUZZ_MULTI_PACKET */ |
| } |
| |
| int main(int argc, char** argv) |
| { |
| struct netif net_test; |
| ip4_addr_t addr; |
| ip4_addr_t netmask; |
| ip4_addr_t gw; |
| size_t len; |
| |
| lwip_init(); |
| |
| IP4_ADDR(&addr, 172, 30, 115, 84); |
| IP4_ADDR(&netmask, 255, 255, 255, 0); |
| IP4_ADDR(&gw, 172, 30, 115, 1); |
| |
| netif_add(&net_test, &addr, &netmask, &gw, &net_test, testif_init, ethernet_input); |
| netif_set_up(&net_test); |
| netif_set_link_up(&net_test); |
| |
| #if LWIP_IPV6 |
| nd6_tmr(); /* tick nd to join multicast groups */ |
| #endif |
| dns_setserver(0, &net_test.gw); |
| |
| /* initialize apps */ |
| httpd_init(); |
| lwiperf_start_tcp_server_default(NULL, NULL); |
| mdns_resp_init(); |
| mdns_resp_add_netif(&net_test, "hostname", 255); |
| snmp_init(); |
| |
| if(argc > 1) { |
| FILE* f; |
| const char* filename; |
| printf("reading input from file... "); |
| fflush(stdout); |
| filename = argv[1]; |
| LWIP_ASSERT("invalid filename", filename != NULL); |
| f = fopen(filename, "rb"); |
| LWIP_ASSERT("open failed", f != NULL); |
| len = fread(pktbuf, 1, sizeof(pktbuf), f); |
| fclose(f); |
| printf("testing file: \"%s\"...\r\n", filename); |
| } else { |
| len = fread(pktbuf, 1, sizeof(pktbuf), stdin); |
| } |
| input_pkts(&net_test, pktbuf, len); |
| |
| return 0; |
| } |