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// SPDX-License-Identifier: GPL-2.0
/* Author: Dmitry Safonov <dima@arista.com> */
#include <inttypes.h>
#include "aolib.h"
static union tcp_addr local_addr;
static void __setup_lo_intf(const char *lo_intf,
const char *addr_str, uint8_t prefix)
{
if (inet_pton(TEST_FAMILY, addr_str, &local_addr) != 1)
test_error("Can't convert local ip address");
if (ip_addr_add(lo_intf, TEST_FAMILY, local_addr, prefix))
test_error("Failed to add %s ip address", lo_intf);
if (link_set_up(lo_intf))
test_error("Failed to bring %s up", lo_intf);
}
static void setup_lo_intf(const char *lo_intf)
{
#ifdef IPV6_TEST
__setup_lo_intf(lo_intf, "::1", 128);
#else
__setup_lo_intf(lo_intf, "127.0.0.1", 8);
#endif
}
static void tcp_self_connect(const char *tst, unsigned int port,
bool different_keyids, bool check_restore)
{
uint64_t before_challenge_ack, after_challenge_ack;
uint64_t before_syn_challenge, after_syn_challenge;
struct tcp_ao_counters before_ao, after_ao;
uint64_t before_aogood, after_aogood;
struct netstat *ns_before, *ns_after;
const size_t nr_packets = 20;
struct tcp_ao_repair ao_img;
struct tcp_sock_state img;
sockaddr_af addr;
int sk;
tcp_addr_to_sockaddr_in(&addr, &local_addr, htons(port));
sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
if (sk < 0)
test_error("socket()");
if (different_keyids) {
if (test_add_key(sk, DEFAULT_TEST_PASSWORD, local_addr, -1, 5, 7))
test_error("setsockopt(TCP_AO_ADD_KEY)");
if (test_add_key(sk, DEFAULT_TEST_PASSWORD, local_addr, -1, 7, 5))
test_error("setsockopt(TCP_AO_ADD_KEY)");
} else {
if (test_add_key(sk, DEFAULT_TEST_PASSWORD, local_addr, -1, 100, 100))
test_error("setsockopt(TCP_AO_ADD_KEY)");
}
if (bind(sk, (struct sockaddr *)&addr, sizeof(addr)) < 0)
test_error("bind()");
ns_before = netstat_read();
before_aogood = netstat_get(ns_before, "TCPAOGood", NULL);
before_challenge_ack = netstat_get(ns_before, "TCPChallengeACK", NULL);
before_syn_challenge = netstat_get(ns_before, "TCPSYNChallenge", NULL);
if (test_get_tcp_ao_counters(sk, &before_ao))
test_error("test_get_tcp_ao_counters()");
if (__test_connect_socket(sk, "lo", (struct sockaddr *)&addr,
sizeof(addr), TEST_TIMEOUT_SEC) < 0) {
ns_after = netstat_read();
netstat_print_diff(ns_before, ns_after);
test_error("failed to connect()");
}
if (test_client_verify(sk, 100, nr_packets, TEST_TIMEOUT_SEC)) {
test_fail("%s: tcp connection verify failed", tst);
close(sk);
return;
}
ns_after = netstat_read();
after_aogood = netstat_get(ns_after, "TCPAOGood", NULL);
after_challenge_ack = netstat_get(ns_after, "TCPChallengeACK", NULL);
after_syn_challenge = netstat_get(ns_after, "TCPSYNChallenge", NULL);
if (test_get_tcp_ao_counters(sk, &after_ao))
test_error("test_get_tcp_ao_counters()");
if (!check_restore) {
/* to debug: netstat_print_diff(ns_before, ns_after); */
netstat_free(ns_before);
}
netstat_free(ns_after);
if (after_aogood <= before_aogood) {
test_fail("%s: TCPAOGood counter mismatch: %zu <= %zu",
tst, after_aogood, before_aogood);
close(sk);
return;
}
if (after_challenge_ack <= before_challenge_ack ||
after_syn_challenge <= before_syn_challenge) {
/*
* It's also meant to test simultaneous open, so check
* these counters as well.
*/
test_fail("%s: Didn't challenge SYN or ACK: %zu <= %zu OR %zu <= %zu",
tst, after_challenge_ack, before_challenge_ack,
after_syn_challenge, before_syn_challenge);
close(sk);
return;
}
if (test_tcp_ao_counters_cmp(tst, &before_ao, &after_ao, TEST_CNT_GOOD)) {
close(sk);
return;
}
if (!check_restore) {
test_ok("%s: connect TCPAOGood %" PRIu64 " => %" PRIu64,
tst, before_aogood, after_aogood);
close(sk);
return;
}
test_enable_repair(sk);
test_sock_checkpoint(sk, &img, &addr);
#ifdef IPV6_TEST
addr.sin6_port = htons(port + 1);
#else
addr.sin_port = htons(port + 1);
#endif
test_ao_checkpoint(sk, &ao_img);
test_kill_sk(sk);
sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
if (sk < 0)
test_error("socket()");
test_enable_repair(sk);
__test_sock_restore(sk, "lo", &img, &addr, &addr, sizeof(addr));
if (different_keyids) {
if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0,
local_addr, -1, 7, 5))
test_error("setsockopt(TCP_AO_ADD_KEY)");
if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0,
local_addr, -1, 5, 7))
test_error("setsockopt(TCP_AO_ADD_KEY)");
} else {
if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0,
local_addr, -1, 100, 100))
test_error("setsockopt(TCP_AO_ADD_KEY)");
}
test_ao_restore(sk, &ao_img);
test_disable_repair(sk);
test_sock_state_free(&img);
if (test_client_verify(sk, 100, nr_packets, TEST_TIMEOUT_SEC)) {
test_fail("%s: tcp connection verify failed", tst);
close(sk);
return;
}
ns_after = netstat_read();
after_aogood = netstat_get(ns_after, "TCPAOGood", NULL);
/* to debug: netstat_print_diff(ns_before, ns_after); */
netstat_free(ns_before);
netstat_free(ns_after);
close(sk);
if (after_aogood <= before_aogood) {
test_fail("%s: TCPAOGood counter mismatch: %zu <= %zu",
tst, after_aogood, before_aogood);
return;
}
test_ok("%s: connect TCPAOGood %" PRIu64 " => %" PRIu64,
tst, before_aogood, after_aogood);
}
static void *client_fn(void *arg)
{
unsigned int port = test_server_port;
setup_lo_intf("lo");
tcp_self_connect("self-connect(same keyids)", port++, false, false);
tcp_self_connect("self-connect(different keyids)", port++, true, false);
tcp_self_connect("self-connect(restore)", port, false, true);
port += 2;
tcp_self_connect("self-connect(restore, different keyids)", port, true, true);
port += 2;
return NULL;
}
int main(int argc, char *argv[])
{
test_init(4, client_fn, NULL);
return 0;
}
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