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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <arpa/inet.h>
#include <netinet/icmp6.h>
#include <unistd.h>
#include "alloc-util.h"
#include "icmp6-util.h"
#include "fuzz.h"
#include "sd-ndisc.h"
#include "socket-util.h"
#include "ndisc-internal.h"
static int test_fd[2] = { -1, -1 };
int icmp6_bind_router_solicitation(int index) {
assert_se(socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, test_fd) >= 0);
return test_fd[0];
}
int icmp6_bind_router_advertisement(int index) {
return -ENOSYS;
}
static struct in6_addr dummy_link_local = {
.s6_addr = {
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x12, 0x34, 0x56, 0xff, 0xfe, 0x78, 0x9a, 0xbc,
},
};
int icmp6_receive(
int fd,
void *iov_base,
size_t iov_len,
struct in6_addr *ret_sender,
triple_timestamp *ret_timestamp) {
assert_se(read(fd, iov_base, iov_len) == (ssize_t) iov_len);
if (ret_timestamp)
triple_timestamp_get(ret_timestamp);
if (ret_sender)
*ret_sender = dummy_link_local;
return 0;
}
int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
return 0;
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
struct ether_addr mac_addr = {
.ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
};
_cleanup_(sd_event_unrefp) sd_event *e = NULL;
_cleanup_(sd_ndisc_unrefp) sd_ndisc *nd = NULL;
if (outside_size_range(size, 0, 2048))
return 0;
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_ndisc_new(&nd) >= 0);
assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0);
assert_se(sd_ndisc_set_ifindex(nd, 42) >= 0);
assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0);
assert_se(sd_ndisc_start(nd) >= 0);
assert_se(write(test_fd[1], data, size) == (ssize_t) size);
(void) sd_event_run(e, UINT64_MAX);
assert_se(sd_ndisc_stop(nd) >= 0);
close(test_fd[1]);
return 0;
}
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