1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 #include "sd-dhcp6-client.h"
8 #include "dhcp6-internal.h"
9 #include "dhcp6-protocol.h"
13 static int test_dhcp_fd
[2] = { -1, -1 };
15 int dhcp6_network_send_udp_socket(int s
, struct in6_addr
*server_address
,
16 const void *packet
, size_t len
) {
20 int dhcp6_network_bind_udp_socket(int index
, struct in6_addr
*local_address
) {
21 assert_se(socketpair(AF_UNIX
, SOCK_STREAM
| SOCK_CLOEXEC
| SOCK_NONBLOCK
, 0, test_dhcp_fd
) >= 0);
22 return test_dhcp_fd
[0];
25 static void fuzz_client(const uint8_t *data
, size_t size
, bool is_information_request_enabled
) {
26 _cleanup_(sd_event_unrefp
) sd_event
*e
;
27 _cleanup_(sd_dhcp6_client_unrefp
) sd_dhcp6_client
*client
= NULL
;
28 struct in6_addr address
= { { { 0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01 } } };
30 assert_se(sd_event_new(&e
) >= 0);
31 assert_se(sd_dhcp6_client_new(&client
) >= 0);
32 assert_se(sd_dhcp6_client_attach_event(client
, e
, 0) >= 0);
33 assert_se(sd_dhcp6_client_set_ifindex(client
, 42) == 0);
34 assert_se(sd_dhcp6_client_set_local_address(client
, &address
) >= 0);
35 assert_se(sd_dhcp6_client_set_information_request(client
, is_information_request_enabled
) == 0);
37 assert_se(sd_dhcp6_client_start(client
) >= 0);
39 if (size
>= sizeof(DHCP6Message
))
40 assert_se(sd_dhcp6_client_set_transaction_id(client
, htobe32(0x00ffffff) & ((const DHCP6Message
*) data
)->transaction_id
) == 0);
42 assert_se(write(test_dhcp_fd
[1], data
, size
) == (ssize_t
) size
);
44 sd_event_run(e
, (uint64_t) -1);
46 assert_se(sd_dhcp6_client_stop(client
) >= 0);
48 test_dhcp_fd
[1] = safe_close(test_dhcp_fd
[1]);
51 int LLVMFuzzerTestOneInput(const uint8_t *data
, size_t size
) {
55 /* This triggers client_receive_advertise */
56 fuzz_client(data
, size
, false);
58 /* This triggers client_receive_reply */
59 fuzz_client(data
, size
, true);