esp-idf/components/lwip/test_afl_host/test_dhcp_server.c

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#include "no_warn_host.h"
#include "lwip/pbuf.h"
#include "lwip/udp.h"
#include <string.h>
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#include <stdio.h>
#include "dhcpserver/dhcpserver.h"
const ip_addr_t ip_addr_any;
ip4_addr_t server_ip;
struct netif mynetif;
// dhcps callback
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void dhcp_test_dhcps_cb (void* cb_arg, u8_t client_ip[4], u8_t client_mac[6]) {}
// Dependency injected static function to pass the packet into parser
void dhcp_test_handle_dhcp(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port);
void dhcp_test_init_di(void);
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//
// Test starts here
//
int main(int argc, char** argv)
{
uint8_t *buf;
struct pbuf *p;
FILE *file;
size_t len = 1460;
dhcp_test_init_di();
IP4_ADDR(&server_ip, 192,168,4,1);
dhcps_t *dhcps = dhcps_new();
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dhcps_set_new_lease_cb(dhcps, dhcp_test_dhcps_cb, NULL);
dhcps_start(dhcps, &mynetif, server_ip);
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#ifdef INSTR_IS_OFF
p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
buf = p->payload;
memset(buf, 0, 1460);
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if (argc != 2)
{
printf("Non-instrumentation mode: please supply a file name created by AFL to reproduce crash\n");
return 1;
}
//
// Note: parameter1 is a file (mangled packet) which caused the crash
file = fopen(argv[1], "r");
if (file) {
len = fread(buf, 1, 1460, file);
}
fclose(file);
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int i;
for (i=0; i<1; i++) {
#else
while (__AFL_LOOP(1000)) {
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p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
buf = p->payload;
memset(buf, 0, 1460);
size_t len = read(0, buf, 1460);
#endif
p->len = len;
p->tot_len = len;
p->next = NULL;
dhcp_test_handle_dhcp(dhcps, NULL, p, &ip_addr_any, 0);
}
dhcps_stop(dhcps, &mynetif);
dhcps_delete(dhcps);
return 0;
}