diff options
Diffstat (limited to 'src/libsystemd-network/test-ipv4ll.c')
| -rw-r--r-- | src/libsystemd-network/test-ipv4ll.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/src/libsystemd-network/test-ipv4ll.c b/src/libsystemd-network/test-ipv4ll.c new file mode 100644 index 0000000..2a078a5 --- /dev/null +++ b/src/libsystemd-network/test-ipv4ll.c @@ -0,0 +1,207 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/*** + Copyright © 2014 Axis Communications AB. All rights reserved. +***/ + +#include <errno.h> +#include <netinet/if_ether.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/types.h> +#include <unistd.h> + +#include "sd-ipv4ll.h" + +#include "arp-util.h" +#include "fd-util.h" +#include "socket-util.h" +#include "tests.h" +#include "util.h" + +static bool verbose = false; +static bool extended = false; +static int test_fd[2]; + +static int basic_request_handler_bind = 0; +static int basic_request_handler_stop = 0; +static void* basic_request_handler_userdata = (void*) 0xCABCAB; + +static void basic_request_handler(sd_ipv4ll *ll, int event, void *userdata) { + assert_se(userdata == basic_request_handler_userdata); + + switch (event) { + case SD_IPV4LL_EVENT_STOP: + basic_request_handler_stop = 1; + break; + case SD_IPV4LL_EVENT_BIND: + basic_request_handler_bind = 1; + break; + default: + assert_se(0); + break; + } +} + +int arp_send_packet( + int fd, + int ifindex, + const struct in_addr *pa, + const struct ether_addr *ha, + bool announce) { + + struct ether_arp ea = {}; + + assert_se(fd >= 0); + assert_se(ifindex > 0); + assert_se(pa); + assert_se(ha); + + if (send(fd, &ea, sizeof(struct ether_arp), 0) < 0) + return -errno; + + return 0; +} + +int arp_update_filter(int fd, const struct in_addr *a, const struct ether_addr *eth_mac) { + return 0; +} + +int arp_network_bind_raw_socket(int ifindex, const struct in_addr *a, const struct ether_addr *eth_mac) { + if (socketpair(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, test_fd) < 0) + return -errno; + + return test_fd[0]; +} + +static void test_public_api_setters(sd_event *e) { + struct in_addr address = {}; + uint64_t seed = 0; + sd_ipv4ll *ll; + struct ether_addr mac_addr = { + .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}}; + + if (verbose) + printf("* %s\n", __func__); + + assert_se(sd_ipv4ll_new(&ll) == 0); + assert_se(ll); + + assert_se(sd_ipv4ll_attach_event(NULL, NULL, 0) == -EINVAL); + assert_se(sd_ipv4ll_attach_event(ll, e, 0) == 0); + assert_se(sd_ipv4ll_attach_event(ll, e, 0) == -EBUSY); + + assert_se(sd_ipv4ll_set_callback(NULL, NULL, NULL) == -EINVAL); + assert_se(sd_ipv4ll_set_callback(ll, NULL, NULL) == 0); + + assert_se(sd_ipv4ll_set_address(ll, &address) == -EINVAL); + address.s_addr |= htobe32(169U << 24 | 254U << 16); + assert_se(sd_ipv4ll_set_address(ll, &address) == -EINVAL); + address.s_addr |= htobe32(0x00FF); + assert_se(sd_ipv4ll_set_address(ll, &address) == -EINVAL); + address.s_addr |= htobe32(0xF000); + assert_se(sd_ipv4ll_set_address(ll, &address) == 0); + address.s_addr |= htobe32(0x0F00); + assert_se(sd_ipv4ll_set_address(ll, &address) == -EINVAL); + + assert_se(sd_ipv4ll_set_address_seed(NULL, seed) == -EINVAL); + assert_se(sd_ipv4ll_set_address_seed(ll, seed) == 0); + + assert_se(sd_ipv4ll_set_mac(NULL, NULL) == -EINVAL); + assert_se(sd_ipv4ll_set_mac(ll, NULL) == -EINVAL); + assert_se(sd_ipv4ll_set_mac(ll, &mac_addr) == 0); + + assert_se(sd_ipv4ll_set_ifindex(NULL, -1) == -EINVAL); + assert_se(sd_ipv4ll_set_ifindex(ll, -1) == -EINVAL); + assert_se(sd_ipv4ll_set_ifindex(ll, -99) == -EINVAL); + assert_se(sd_ipv4ll_set_ifindex(ll, 1) == 0); + + assert_se(sd_ipv4ll_ref(ll) == ll); + assert_se(sd_ipv4ll_unref(ll) == NULL); + + /* Cleanup */ + assert_se(sd_ipv4ll_unref(ll) == NULL); +} + +static void test_basic_request(sd_event *e, const struct in_addr *start_address) { + + sd_ipv4ll *ll; + struct ether_arp arp; + struct ether_addr mac_addr = { + .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}}; + + if (verbose) + printf("* %s\n", __func__); + + assert_se(sd_ipv4ll_new(&ll) == 0); + if (in4_addr_is_set(start_address)) + assert_se(sd_ipv4ll_set_address(ll, start_address) >= 0); + assert_se(sd_ipv4ll_start(ll) == -EINVAL); + + assert_se(sd_ipv4ll_attach_event(ll, e, 0) == 0); + assert_se(sd_ipv4ll_start(ll) == -EINVAL); + + assert_se(sd_ipv4ll_set_mac(ll, &mac_addr) == 0); + assert_se(sd_ipv4ll_start(ll) == -EINVAL); + + assert_se(sd_ipv4ll_set_callback(ll, basic_request_handler, + basic_request_handler_userdata) == 0); + assert_se(sd_ipv4ll_start(ll) == -EINVAL); + + assert_se(sd_ipv4ll_set_ifindex(ll, 1) == 0); + assert_se(sd_ipv4ll_start(ll) == 1); + + sd_event_run(e, UINT64_MAX); + assert_se(sd_ipv4ll_start(ll) == 0); + + assert_se(sd_ipv4ll_is_running(ll)); + + /* PROBE */ + sd_event_run(e, UINT64_MAX); + assert_se(recv(test_fd[1], &arp, sizeof(struct ether_arp), 0) == sizeof(struct ether_arp)); + + if (extended) { + /* PROBE */ + sd_event_run(e, UINT64_MAX); + assert_se(recv(test_fd[1], &arp, sizeof(struct ether_arp), 0) == sizeof(struct ether_arp)); + + /* PROBE */ + sd_event_run(e, UINT64_MAX); + assert_se(recv(test_fd[1], &arp, sizeof(struct ether_arp), 0) == sizeof(struct ether_arp)); + + sd_event_run(e, UINT64_MAX); + assert_se(basic_request_handler_bind == 1); + + if (in4_addr_is_set(start_address)) { + struct in_addr address; + + assert_se(sd_ipv4ll_get_address(ll, &address) >= 0); + assert_se(start_address->s_addr == address.s_addr); + } + } + + sd_ipv4ll_stop(ll); + assert_se(basic_request_handler_stop == 1); + + /* Cleanup */ + assert_se(sd_ipv4ll_unref(ll) == NULL); + safe_close(test_fd[1]); +} + +int main(int argc, char *argv[]) { + struct in_addr start_address = {}; + _cleanup_(sd_event_unrefp) sd_event *e = NULL; + + test_setup_logging(LOG_DEBUG); + + assert_se(sd_event_new(&e) >= 0); + + test_public_api_setters(e); + test_basic_request(e, &start_address); + + basic_request_handler_bind = 0; + basic_request_handler_stop = 0; + start_address.s_addr = htobe32(169U << 24 | 254U << 16 | 1U << 8 | 2U); + test_basic_request(e, &start_address); + + return 0; +} |