src/libsystemd-network/fuzz-ndisc-rs.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <arpa/inet.h>
   4 #include <netinet/icmp6.h>
   5 #include <unistd.h>
   6
   7 #include "sd-ndisc.h"
   8
   9 #include "alloc-util.h"
  10 #include "fd-util.h"
  11 #include "fuzz.h"
  12 #include "icmp6-util-unix.h"
  13 #include "ndisc-internal.h"
  14 #include "socket-util.h"
  15
  16 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  17         struct ether_addr mac_addr = {
  18                 .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
  19         };
  20         _cleanup_(sd_event_unrefp) sd_event *e = NULL;
  21         _cleanup_(sd_ndisc_unrefp) sd_ndisc *nd = NULL;
  22
  23         if (outside_size_range(size, 0, 2048))
  24                 return 0;
  25
  26         fuzz_setup_logging();
  27
  28         assert_se(sd_event_new(&e) >= 0);
  29         assert_se(sd_ndisc_new(&nd) >= 0);
  30         assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0);
  31         assert_se(sd_ndisc_set_ifindex(nd, 42) >= 0);
  32         assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0);
  33         assert_se(sd_ndisc_start(nd) >= 0);
  34         assert_se(write(test_fd[1], data, size) == (ssize_t) size);
  35         (void) sd_event_run(e, UINT64_MAX);
  36         assert_se(sd_ndisc_stop(nd) >= 0);
  37         close(test_fd[1]);
  38
  39         return 0;
  40 }