--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2014 Axis Communications AB. All rights reserved.
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "util.h"
+#include "socket-util.h"
+
+#include "sd-ipv4ll.h"
+#include "ipv4ll-internal.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_user_data = (void*)0xCABCAB;
+static void basic_request_handler(sd_ipv4ll *ll, int event, void *userdata) {
+ assert_se(userdata == basic_request_handler_user_data);
+
+ switch(event) {
+ case IPV4LL_EVENT_STOP:
+ basic_request_handler_stop = 1;
+ break;
+ case IPV4LL_EVENT_BIND:
+ basic_request_handler_bind = 1;
+ break;
+ default:
+ assert_se(0);
+ break;
+ }
+}
+
+int arp_network_send_raw_socket(int fd, const union sockaddr_union *link,
+ const struct ether_arp *arp) {
+ assert_se(arp);
+ assert_se(link);
+ assert_se(fd >= 0);
+
+ if (send(fd, arp, sizeof(struct ether_arp), 0) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int arp_network_bind_raw_socket(int index, union sockaddr_union *link) {
+ if (socketpair(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0, test_fd) < 0)
+ return -errno;
+
+ return test_fd[0];
+}
+
+static void test_arp_header(struct ether_arp *arp) {
+ assert_se(arp);
+ assert_se(arp->ea_hdr.ar_hrd == htons(ARPHRD_ETHER)); /* HTYPE */
+ assert_se(arp->ea_hdr.ar_pro == htons(ETHERTYPE_IP)); /* PTYPE */
+ assert_se(arp->ea_hdr.ar_hln == ETH_ALEN); /* HLEN */
+ assert_se(arp->ea_hdr.ar_pln == sizeof arp->arp_spa); /* PLEN */
+ assert_se(arp->ea_hdr.ar_op == htons(ARPOP_REQUEST)); /* REQUEST */
+}
+
+static void test_arp_probe(void) {
+ struct ether_arp arp;
+ struct ether_addr mac_addr = {
+ .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}};
+ be32_t pa = 0x3030;
+
+ if (verbose)
+ printf("* %s\n", __FUNCTION__);
+
+ arp_packet_probe(&arp, pa, &mac_addr);
+ test_arp_header(&arp);
+ assert_se(memcmp(arp.arp_sha, &mac_addr, ETH_ALEN) == 0);
+ assert_se(memcmp(arp.arp_tpa, &pa, sizeof(pa)) == 0);
+}
+
+static void test_arp_announce(void) {
+ struct ether_arp arp;
+ struct ether_addr mac_addr = {
+ .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}};
+ be32_t pa = 0x3131;
+
+ if (verbose)
+ printf("* %s\n", __FUNCTION__);
+
+ arp_packet_announcement(&arp, pa, &mac_addr);
+ test_arp_header(&arp);
+ assert_se(memcmp(arp.arp_sha, &mac_addr, ETH_ALEN) == 0);
+ assert_se(memcmp(arp.arp_tpa, &pa, sizeof(pa)) == 0);
+ assert_se(memcmp(arp.arp_spa, &pa, sizeof(pa)) == 0);
+}
+
+static void test_public_api_setters(sd_event *e) {
+ uint8_t seed[8];
+ sd_ipv4ll *ll;
+ 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(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_seed(NULL, NULL) == -EINVAL);
+ assert_se(sd_ipv4ll_set_address_seed(ll, NULL) == -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_index(NULL, -1) == -EINVAL);
+ assert_se(sd_ipv4ll_set_index(ll, -1) == -EINVAL);
+ assert_se(sd_ipv4ll_set_index(ll, -99) == -EINVAL);
+ assert_se(sd_ipv4ll_set_index(ll, 1) == 0);
+ assert_se(sd_ipv4ll_set_index(ll, 99) == 0);
+
+ assert_se(sd_ipv4ll_ref(ll) == ll);
+ assert_se(sd_ipv4ll_unref(ll) == ll);
+
+ /* Cleanup */
+ assert_se(sd_ipv4ll_unref(ll) == NULL);
+}
+
+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_user_data) == 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);
+
+ /* PROBE */
+ sd_event_run(e, (uint64_t) -1);
+ assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp));
+ test_arp_header(&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));
+ test_arp_header(&arp);
+
+ /* PROBE */
+ sd_event_run(e, (uint64_t) -1);
+ assert_se(read(test_fd[1], &arp, sizeof(struct ether_arp)) == sizeof(struct ether_arp));
+ test_arp_header(&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]);
+}
+
+int main(int argc, char *argv[]) {
+ sd_event *e;
+
+ assert_se(sd_event_new(&e) >= 0);
+
+ test_public_api_setters(e);
+ test_arp_probe();
+ test_arp_announce();
+ test_basic_request(e);
+
+ return 0;
+}
projects / platform / upstream / systemd.git / commitdiff