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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/libsystemd-network/fuzz-ndisc-rs.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/libsystemd-network/fuzz-ndisc-rs.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/libsystemd-network/fuzz-ndisc-rs.c b/src/libsystemd-network/fuzz-ndisc-rs.c new file mode 100644 index 0000000..c8eacc6 --- /dev/null +++ b/src/libsystemd-network/fuzz-ndisc-rs.c @@ -0,0 +1,76 @@ +/* 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; +} |