11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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Copyright 2018 Jonathan Rudenberg
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***/
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#include "fuzz.h"
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#include "sd-dhcp-server.c"
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/* stub out network so that the server doesn't send */
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ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen) {
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return len;
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}
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ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags) {
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return 0;
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}
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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_cleanup_(sd_dhcp_server_unrefp) sd_dhcp_server *server = NULL;
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struct in_addr address = {.s_addr = htobe32(UINT32_C(10) << 24 | UINT32_C(1))};
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static const uint8_t chaddr[] = {3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3};
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uint8_t *client_id;
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DHCPLease *lease;
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int pool_offset;
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if (size < sizeof(DHCPMessage))
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return 0;
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assert_se(sd_dhcp_server_new(&server, 1) >= 0);
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server->fd = open("/dev/null", O_RDWR|O_CLOEXEC|O_NOCTTY);
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assert_se(server->fd >= 0);
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assert_se(sd_dhcp_server_configure_pool(server, &address, 24, 0, 0) >= 0);
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/* add a lease to the pool to expose additional code paths */
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client_id = malloc(2);
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assert_se(client_id);
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client_id[0] = 2;
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client_id[1] = 2;
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lease = new0(DHCPLease, 1);
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assert_se(lease);
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lease->client_id.length = 2;
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lease->client_id.data = client_id;
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lease->address = htobe32(UINT32_C(10) << 24 | UINT32_C(2));
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lease->gateway = htobe32(UINT32_C(10) << 24 | UINT32_C(1));
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lease->expiration = UINT64_MAX;
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memcpy(lease->chaddr, chaddr, 16);
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pool_offset = get_pool_offset(server, lease->address);
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server->bound_leases[pool_offset] = lease;
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assert_se(hashmap_put(server->leases_by_client_id, &lease->client_id, lease) >= 0);
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(void) dhcp_server_handle_message(server, (DHCPMessage*)data, size);
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return 0;
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}
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