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/* 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"
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_RETURN_EXPECTED_SE(sd_ipv4ll_attach_event(NULL, NULL, 0) == -EINVAL);
assert_se(sd_ipv4ll_attach_event(ll, e, 0) == 0);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_attach_event(ll, e, 0) == -EBUSY);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_callback(NULL, NULL, NULL) == -EINVAL);
assert_se(sd_ipv4ll_set_callback(ll, NULL, NULL) == 0);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_address(ll, &address) == -EINVAL);
address.s_addr |= htobe32(169U << 24 | 254U << 16);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_address(ll, &address) == -EINVAL);
address.s_addr |= htobe32(0x00FF);
ASSERT_RETURN_EXPECTED_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_RETURN_EXPECTED_SE(sd_ipv4ll_set_address(ll, &address) == -EINVAL);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_address_seed(NULL, seed) == -EINVAL);
assert_se(sd_ipv4ll_set_address_seed(ll, seed) == 0);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_mac(NULL, NULL) == -EINVAL);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_mac(ll, NULL) == -EINVAL);
assert_se(sd_ipv4ll_set_mac(ll, &mac_addr) == 0);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_ifindex(NULL, -1) == -EINVAL);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_set_ifindex(ll, -1) == -EINVAL);
ASSERT_RETURN_EXPECTED_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_RETURN_EXPECTED_SE(sd_ipv4ll_start(ll) == -EINVAL);
assert_se(sd_ipv4ll_attach_event(ll, e, 0) == 0);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_start(ll) == -EINVAL);
assert_se(sd_ipv4ll_set_mac(ll, &mac_addr) == 0);
ASSERT_RETURN_EXPECTED_SE(sd_ipv4ll_start(ll) == -EINVAL);
assert_se(sd_ipv4ll_set_callback(ll, basic_request_handler,
basic_request_handler_userdata) == 0);
ASSERT_RETURN_EXPECTED_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;
}
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