int sd_ipv4ll_set_mac(sd_ipv4ll *ll, const struct ether_addr *addr) { bool need_restart = false; assert_return(ll, -EINVAL); assert_return(addr, -EINVAL); if (memcmp(&ll->mac_addr, addr, ETH_ALEN) == 0) return 0; if (!IN_SET(ll->state, IPV4LL_STATE_INIT, IPV4LL_STATE_STOPPED)) { log_ipv4ll(ll, "Changing MAC address on running IPv4LL " "client, restarting"); ll = ipv4ll_stop(ll, IPV4LL_EVENT_STOP); need_restart = true; } if (!ll) return 0; memcpy(&ll->mac_addr, addr, ETH_ALEN); if (need_restart) sd_ipv4ll_start(ll); return 0; }
static int client_run(int ifindex, const char *seed_str, const struct ether_addr *ha, sd_event *e) { sd_ipv4ll *ll; assert_se(sd_ipv4ll_new(&ll) >= 0); assert_se(sd_ipv4ll_attach_event(ll, e, 0) >= 0); assert_se(sd_ipv4ll_set_index(ll, ifindex) >= 0); assert_se(sd_ipv4ll_set_mac(ll, ha) >= 0); assert_se(sd_ipv4ll_set_callback(ll, ll_handler, NULL) >= 0); if (seed_str) { unsigned seed; assert_se(safe_atou(seed_str, &seed) >= 0); assert_se(sd_ipv4ll_set_address_seed(ll, seed) >= 0); } log_info("starting IPv4LL client"); assert_se(sd_ipv4ll_start(ll) >= 0); assert_se(sd_event_loop(e) >= 0); assert_se(!sd_ipv4ll_unref(ll)); return EXIT_SUCCESS; }
static void test_basic_request(sd_event *e) { 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", __FUNCTION__); assert_se(sd_ipv4ll_new(&ll) == 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_index(ll, 1) == 0); assert_se(sd_ipv4ll_start(ll) == 0); sd_event_run(e, (uint64_t) -1); assert_se(sd_ipv4ll_start(ll) == -EBUSY); assert_se(sd_ipv4ll_is_running(ll)); /* PROBE */ sd_event_run(e, (uint64_t) -1); assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp)); if (extended) { /* PROBE */ sd_event_run(e, (uint64_t) -1); assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp)); /* PROBE */ sd_event_run(e, (uint64_t) -1); assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp)); sd_event_run(e, (uint64_t) -1); assert_se(basic_request_handler_bind == 1); } sd_ipv4ll_stop(ll); assert_se(basic_request_handler_stop == 1); /* Cleanup */ assert_se(sd_ipv4ll_unref(ll) == NULL); safe_close(test_fd[1]); }