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selftests/net: Add TCP-AO + TCP-MD5 + no sign listen socket tests

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The test plan was (most of tests have all 3 client types):
1. TCP-AO listen (INADDR_ANY)
2. TCP-MD5 listen (INADDR_ANY)
3. non-signed listen (INADDR_ANY)
4. TCP-AO + TCP-MD5 listen (prefix)
5. TCP-AO subprefix add failure [checked in setsockopt-closed.c]
6. TCP-AO out of prefix connect [checked in connect-deny.c]
7. TCP-AO + TCP-MD5 on connect()
8. TCP-AO intersect with TCP-MD5 failure
9. Established TCP-AO: add TCP-MD5 key
10. Established TCP-MD5: add TCP-AO key
11. Established non-signed: add TCP-AO key

Output produced:
> # ./unsigned-md5_ipv6
> 1..72
> # 1592[lib/setup.c:239] rand seed 1697567046
> TAP version 13
> ok 1 AO server (INADDR_ANY): AO client: counter TCPAOGood increased 0 => 2
> ok 2 AO server (INADDR_ANY): AO client: connected
> ok 3 AO server (INADDR_ANY): MD5 client
> ok 4 AO server (INADDR_ANY): MD5 client: counter TCPMD5Unexpected increased 0 => 1
> ok 5 AO server (INADDR_ANY): no sign client: counter TCPAORequired increased 0 => 1
> ok 6 AO server (INADDR_ANY): unsigned client
> ok 7 AO server (AO_REQUIRED): AO client: connected
> ok 8 AO server (AO_REQUIRED): AO client: counter TCPAOGood increased 4 => 6
> ok 9 AO server (AO_REQUIRED): unsigned client
> ok 10 AO server (AO_REQUIRED): unsigned client: counter TCPAORequired increased 1 => 2
> ok 11 MD5 server (INADDR_ANY): AO client: counter TCPAOKeyNotFound increased 0 => 1
> ok 12 MD5 server (INADDR_ANY): AO client
> ok 13 MD5 server (INADDR_ANY): MD5 client: connected
> ok 14 MD5 server (INADDR_ANY): MD5 client: no counter checks
> ok 15 MD5 server (INADDR_ANY): no sign client
> ok 16 MD5 server (INADDR_ANY): no sign client: counter TCPMD5NotFound increased 0 => 1
> ok 17 no sign server: AO client
> ok 18 no sign server: AO client: counter TCPAOKeyNotFound increased 1 => 2
> ok 19 no sign server: MD5 client
> ok 20 no sign server: MD5 client: counter TCPMD5Unexpected increased 1 => 2
> ok 21 no sign server: no sign client: connected
> ok 22 no sign server: no sign client: counter CurrEstab increased 0 => 1
> ok 23 AO+MD5 server: AO client (matching): connected
> ok 24 AO+MD5 server: AO client (matching): counter TCPAOGood increased 8 => 10
> ok 25 AO+MD5 server: AO client (misconfig, matching MD5)
> ok 26 AO+MD5 server: AO client (misconfig, matching MD5): counter TCPAOKeyNotFound increased 2 => 3
> ok 27 AO+MD5 server: AO client (misconfig, non-matching): counter TCPAOKeyNotFound increased 3 => 4
> ok 28 AO+MD5 server: AO client (misconfig, non-matching)
> ok 29 AO+MD5 server: MD5 client (matching): connected
> ok 30 AO+MD5 server: MD5 client (matching): no counter checks
> ok 31 AO+MD5 server: MD5 client (misconfig, matching AO)
> ok 32 AO+MD5 server: MD5 client (misconfig, matching AO): counter TCPMD5Unexpected increased 2 => 3
> ok 33 AO+MD5 server: MD5 client (misconfig, non-matching)
> ok 34 AO+MD5 server: MD5 client (misconfig, non-matching): counter TCPMD5Unexpected increased 3 => 4
> ok 35 AO+MD5 server: no sign client (unmatched): connected
> ok 36 AO+MD5 server: no sign client (unmatched): counter CurrEstab increased 0 => 1
> ok 37 AO+MD5 server: no sign client (misconfig, matching AO)
> ok 38 AO+MD5 server: no sign client (misconfig, matching AO): counter TCPAORequired increased 2 => 3
> ok 39 AO+MD5 server: no sign client (misconfig, matching MD5)
> ok 40 AO+MD5 server: no sign client (misconfig, matching MD5): counter TCPMD5NotFound increased 1 => 2
> ok 41 AO+MD5 server: client with both [TCP-MD5] and TCP-AO keys: connect() was prevented
> ok 42 AO+MD5 server: client with both [TCP-MD5] and TCP-AO keys: no counter checks
> ok 43 AO+MD5 server: client with both TCP-MD5 and [TCP-AO] keys: connect() was prevented
> ok 44 AO+MD5 server: client with both TCP-MD5 and [TCP-AO] keys: no counter checks
> ok 45 TCP-AO established: add TCP-MD5 key: postfailed as expected
> ok 46 TCP-AO established: add TCP-MD5 key: counter TCPAOGood increased 12 => 14
> ok 47 TCP-MD5 established: add TCP-AO key: postfailed as expected
> ok 48 TCP-MD5 established: add TCP-AO key: no counter checks
> ok 49 non-signed established: add TCP-AO key: postfailed as expected
> ok 50 non-signed established: add TCP-AO key: counter CurrEstab increased 0 => 1
> ok 51 TCP-AO key intersects with existing TCP-MD5 key: prefailed as expected: Key was rejected by service
> ok 52 TCP-MD5 key intersects with existing TCP-AO key: prefailed as expected: Key was rejected by service
> ok 53 TCP-MD5 key + TCP-AO required: prefailed as expected: Key was rejected by service
> ok 54 TCP-AO required on socket + TCP-MD5 key: prefailed as expected: Key was rejected by service
> ok 55 VRF: TCP-AO key (no l3index) + TCP-MD5 key (no l3index): prefailed as expected: Key was rejected by service
> ok 56 VRF: TCP-MD5 key (no l3index) + TCP-AO key (no l3index): prefailed as expected: Key was rejected by service
> ok 57 VRF: TCP-AO key (no l3index) + TCP-MD5 key (l3index=0): prefailed as expected: Key was rejected by service
> ok 58 VRF: TCP-MD5 key (l3index=0) + TCP-AO key (no l3index): prefailed as expected: Key was rejected by service
> ok 59 VRF: TCP-AO key (no l3index) + TCP-MD5 key (l3index=N): prefailed as expected: Key was rejected by service
> ok 60 VRF: TCP-MD5 key (l3index=N) + TCP-AO key (no l3index): prefailed as expected: Key was rejected by service
> ok 61 VRF: TCP-AO key (l3index=0) + TCP-MD5 key (no l3index): prefailed as expected: Key was rejected by service
> ok 62 VRF: TCP-MD5 key (no l3index) + TCP-AO key (l3index=0): prefailed as expected: Key was rejected by service
> ok 63 VRF: TCP-AO key (l3index=0) + TCP-MD5 key (l3index=0): prefailed as expected: Key was rejected by service
> ok 64 VRF: TCP-MD5 key (l3index=0) + TCP-AO key (l3index=0): prefailed as expected: Key was rejected by service
> ok 65 VRF: TCP-AO key (l3index=0) + TCP-MD5 key (l3index=N)
> ok 66 VRF: TCP-MD5 key (l3index=N) + TCP-AO key (l3index=0)
> ok 67 VRF: TCP-AO key (l3index=N) + TCP-MD5 key (no l3index): prefailed as expected: Key was rejected by service
> ok 68 VRF: TCP-MD5 key (no l3index) + TCP-AO key (l3index=N): prefailed as expected: Key was rejected by service
> ok 69 VRF: TCP-AO key (l3index=N) + TCP-MD5 key (l3index=0)
> ok 70 VRF: TCP-MD5 key (l3index=0) + TCP-AO key (l3index=N)
> ok 71 VRF: TCP-AO key (l3index=N) + TCP-MD5 key (l3index=N): prefailed as expected: Key was rejected by service
> ok 72 VRF: TCP-MD5 key (l3index=N) + TCP-AO key (l3index=N): prefailed as expected: Key was rejected by service
> # Totals: pass:72 fail:0 xfail:0 xpass:0 skip:0 error:0

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Safonov 2023-12-15 02:36:20 +00:00 committed by David S. Miller
parent b26660531c
commit 6f0c472a68
2 changed files with 743 additions and 0 deletions
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1
tools/testing/selftests/net/tcp_ao/Makefile
View File

@ -3,6 +3,7 @@ TEST_BOTH_AF := connect
TEST_BOTH_AF += connect-deny
TEST_BOTH_AF += icmps-accept icmps-discard
TEST_BOTH_AF += setsockopt-closed
TEST_BOTH_AF += unsigned-md5
TEST_IPV4_PROGS := $(TEST_BOTH_AF:%=%_ipv4)
TEST_IPV6_PROGS := $(TEST_BOTH_AF:%=%_ipv6)

742
tools/testing/selftests/net/tcp_ao/unsigned-md5.c Normal file
View File

@ -0,0 +1,742 @@
// SPDX-License-Identifier: GPL-2.0
/* Author: Dmitry Safonov <dima@arista.com> */
#include <inttypes.h>
#include "aolib.h"
#define fault(type) (inj == FAULT_ ## type)
static const char *md5_password = "Some evil genius, enemy to mankind, must have been the first contriver.";
static const char *ao_password = DEFAULT_TEST_PASSWORD;
static union tcp_addr client2;
static union tcp_addr client3;
static const int test_vrf_ifindex = 200;
static const uint8_t test_vrf_tabid = 42;
static void setup_vrfs(void)
{
int err;
if (!kernel_config_has(KCONFIG_NET_VRF))
return;
err = add_vrf("ksft-vrf", test_vrf_tabid, test_vrf_ifindex, -1);
if (err)
test_error("Failed to add a VRF: %d", err);
err = link_set_up("ksft-vrf");
if (err)
test_error("Failed to bring up a VRF");
err = ip_route_add_vrf(veth_name, TEST_FAMILY,
this_ip_addr, this_ip_dest, test_vrf_tabid);
if (err)
test_error("Failed to add a route to VRF");
}
static void try_accept(const char *tst_name, unsigned int port,
union tcp_addr *md5_addr, uint8_t md5_prefix,
union tcp_addr *ao_addr, uint8_t ao_prefix,
bool set_ao_required,
uint8_t sndid, uint8_t rcvid, uint8_t vrf,
const char *cnt_name, test_cnt cnt_expected,
int needs_tcp_md5, fault_t inj)
{
struct tcp_ao_counters ao_cnt1, ao_cnt2;
uint64_t before_cnt = 0, after_cnt = 0; /* silence GCC */
int lsk, err, sk = 0;
time_t timeout;
if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
return;
lsk = test_listen_socket(this_ip_addr, port, 1);
if (md5_addr && test_set_md5(lsk, *md5_addr, md5_prefix, -1, md5_password))
test_error("setsockopt(TCP_MD5SIG_EXT)");
if (ao_addr && test_add_key(lsk, ao_password,
*ao_addr, ao_prefix, sndid, rcvid))
test_error("setsockopt(TCP_AO_ADD_KEY)");
if (set_ao_required && test_set_ao_flags(lsk, true, false))
test_error("setsockopt(TCP_AO_INFO)");
if (cnt_name)
before_cnt = netstat_get_one(cnt_name, NULL);
if (ao_addr && test_get_tcp_ao_counters(lsk, &ao_cnt1))
test_error("test_get_tcp_ao_counters()");
synchronize_threads(); /* preparations done */
timeout = fault(TIMEOUT) ? TEST_RETRANSMIT_SEC : TEST_TIMEOUT_SEC;
err = test_wait_fd(lsk, timeout, 0);
if (err == -ETIMEDOUT) {
if (!fault(TIMEOUT))
test_fail("timeouted for accept()");
} else if (err < 0) {
test_error("test_wait_fd()");
} else {
if (fault(TIMEOUT))
test_fail("ready to accept");
sk = accept(lsk, NULL, NULL);
if (sk < 0) {
test_error("accept()");
} else {
if (fault(TIMEOUT))
test_fail("%s: accepted", tst_name);
}
}
if (ao_addr && test_get_tcp_ao_counters(lsk, &ao_cnt2))
test_error("test_get_tcp_ao_counters()");
close(lsk);
if (!cnt_name) {
test_ok("%s: no counter checks", tst_name);
goto out;
}
after_cnt = netstat_get_one(cnt_name, NULL);
if (after_cnt <= before_cnt) {
test_fail("%s: %s counter did not increase: %zu <= %zu",
tst_name, cnt_name, after_cnt, before_cnt);
} else {
test_ok("%s: counter %s increased %zu => %zu",
tst_name, cnt_name, before_cnt, after_cnt);
}
if (ao_addr)
test_tcp_ao_counters_cmp(tst_name, &ao_cnt1, &ao_cnt2, cnt_expected);
out:
synchronize_threads(); /* close() */
if (sk > 0)
close(sk);
}
static void server_add_routes(void)
{
int family = TEST_FAMILY;
synchronize_threads(); /* client_add_ips() */
if (ip_route_add(veth_name, family, this_ip_addr, client2))
test_error("Failed to add route");
if (ip_route_add(veth_name, family, this_ip_addr, client3))
test_error("Failed to add route");
}
static void server_add_fail_tests(unsigned int *port)
{
union tcp_addr addr_any = {};
try_accept("TCP-AO established: add TCP-MD5 key", (*port)++, NULL, 0,
&addr_any, 0, 0, 100, 100, 0, "TCPAOGood", TEST_CNT_GOOD,
1, 0);
try_accept("TCP-MD5 established: add TCP-AO key", (*port)++, &addr_any,
0, NULL, 0, 0, 0, 0, 0, NULL, 0, 1, 0);
try_accept("non-signed established: add TCP-AO key", (*port)++, NULL, 0,
NULL, 0, 0, 0, 0, 0, "CurrEstab", 0, 0, 0);
}
static void server_vrf_tests(unsigned int *port)
{
setup_vrfs();
}
static void *server_fn(void *arg)
{
unsigned int port = test_server_port;
union tcp_addr addr_any = {};
server_add_routes();
try_accept("AO server (INADDR_ANY): AO client", port++, NULL, 0,
&addr_any, 0, 0, 100, 100, 0, "TCPAOGood",
TEST_CNT_GOOD, 0, 0);
try_accept("AO server (INADDR_ANY): MD5 client", port++, NULL, 0,
&addr_any, 0, 0, 100, 100, 0, "TCPMD5Unexpected",
0, 1, FAULT_TIMEOUT);
try_accept("AO server (INADDR_ANY): no sign client", port++, NULL, 0,
&addr_any, 0, 0, 100, 100, 0, "TCPAORequired",
TEST_CNT_AO_REQUIRED, 0, FAULT_TIMEOUT);
try_accept("AO server (AO_REQUIRED): AO client", port++, NULL, 0,
&this_ip_dest, TEST_PREFIX, true,
100, 100, 0, "TCPAOGood", TEST_CNT_GOOD, 0, 0);
try_accept("AO server (AO_REQUIRED): unsigned client", port++, NULL, 0,
&this_ip_dest, TEST_PREFIX, true,
100, 100, 0, "TCPAORequired",
TEST_CNT_AO_REQUIRED, 0, FAULT_TIMEOUT);
try_accept("MD5 server (INADDR_ANY): AO client", port++, &addr_any, 0,
NULL, 0, 0, 0, 0, 0, "TCPAOKeyNotFound",
0, 1, FAULT_TIMEOUT);
try_accept("MD5 server (INADDR_ANY): MD5 client", port++, &addr_any, 0,
NULL, 0, 0, 0, 0, 0, NULL, 0, 1, 0);
try_accept("MD5 server (INADDR_ANY): no sign client", port++, &addr_any,
0, NULL, 0, 0, 0, 0, 0, "TCPMD5NotFound",
0, 1, FAULT_TIMEOUT);
try_accept("no sign server: AO client", port++, NULL, 0,
NULL, 0, 0, 0, 0, 0, "TCPAOKeyNotFound",
TEST_CNT_AO_KEY_NOT_FOUND, 0, FAULT_TIMEOUT);
try_accept("no sign server: MD5 client", port++, NULL, 0,
NULL, 0, 0, 0, 0, 0, "TCPMD5Unexpected",
0, 1, FAULT_TIMEOUT);
try_accept("no sign server: no sign client", port++, NULL, 0,
NULL, 0, 0, 0, 0, 0, "CurrEstab", 0, 0, 0);
try_accept("AO+MD5 server: AO client (matching)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPAOGood", TEST_CNT_GOOD, 1, 0);
try_accept("AO+MD5 server: AO client (misconfig, matching MD5)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPAOKeyNotFound", TEST_CNT_AO_KEY_NOT_FOUND,
1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: AO client (misconfig, non-matching)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPAOKeyNotFound", TEST_CNT_AO_KEY_NOT_FOUND,
1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: MD5 client (matching)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, NULL, 0, 1, 0);
try_accept("AO+MD5 server: MD5 client (misconfig, matching AO)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPMD5Unexpected", 0, 1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: MD5 client (misconfig, non-matching)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPMD5Unexpected", 0, 1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: no sign client (unmatched)", port++,
&this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "CurrEstab", 0, 1, 0);
try_accept("AO+MD5 server: no sign client (misconfig, matching AO)",
port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPAORequired",
TEST_CNT_AO_REQUIRED, 1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: no sign client (misconfig, matching MD5)",
port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, "TCPMD5NotFound", 0, 1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: client with both [TCP-MD5] and TCP-AO keys",
port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, NULL, 0, 1, FAULT_TIMEOUT);
try_accept("AO+MD5 server: client with both TCP-MD5 and [TCP-AO] keys",
port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
100, 100, 0, NULL, 0, 1, FAULT_TIMEOUT);
server_add_fail_tests(&port);
server_vrf_tests(&port);
/* client exits */
synchronize_threads();
return NULL;
}
static int client_bind(int sk, union tcp_addr bind_addr)
{
#ifdef IPV6_TEST
struct sockaddr_in6 addr = {
.sin6_family = AF_INET6,
.sin6_port = 0,
.sin6_addr = bind_addr.a6,
};
#else
struct sockaddr_in addr = {
.sin_family = AF_INET,
.sin_port = 0,
.sin_addr = bind_addr.a4,
};
#endif
return bind(sk, &addr, sizeof(addr));
}
static void try_connect(const char *tst_name, unsigned int port,
union tcp_addr *md5_addr, uint8_t md5_prefix,
union tcp_addr *ao_addr, uint8_t ao_prefix,
uint8_t sndid, uint8_t rcvid, uint8_t vrf,
fault_t inj, int needs_tcp_md5, union tcp_addr *bind_addr)
{
time_t timeout;
int sk, ret;
if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
return;
sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
if (sk < 0)
test_error("socket()");
if (bind_addr && client_bind(sk, *bind_addr))
test_error("bind()");
if (md5_addr && test_set_md5(sk, *md5_addr, md5_prefix, -1, md5_password))
test_error("setsockopt(TCP_MD5SIG_EXT)");
if (ao_addr && test_add_key(sk, ao_password, *ao_addr,
ao_prefix, sndid, rcvid))
test_error("setsockopt(TCP_AO_ADD_KEY)");
synchronize_threads(); /* preparations done */
timeout = fault(TIMEOUT) ? TEST_RETRANSMIT_SEC : TEST_TIMEOUT_SEC;
ret = _test_connect_socket(sk, this_ip_dest, port, timeout);
if (ret < 0) {
if (fault(KEYREJECT) && ret == -EKEYREJECTED)
test_ok("%s: connect() was prevented", tst_name);
else if (ret == -ETIMEDOUT && fault(TIMEOUT))
test_ok("%s", tst_name);
else if (ret == -ECONNREFUSED &&
(fault(TIMEOUT) || fault(KEYREJECT)))
test_ok("%s: refused to connect", tst_name);
else
test_error("%s: connect() returned %d", tst_name, ret);
goto out;
}
if (fault(TIMEOUT) || fault(KEYREJECT))
test_fail("%s: connected", tst_name);
else
test_ok("%s: connected", tst_name);
out:
synchronize_threads(); /* close() */
/* _test_connect_socket() cleans up on failure */
if (ret > 0)
close(sk);
}
#define PREINSTALL_MD5_FIRST BIT(0)
#define PREINSTALL_AO BIT(1)
#define POSTINSTALL_AO BIT(2)
#define PREINSTALL_MD5 BIT(3)
#define POSTINSTALL_MD5 BIT(4)
static int try_add_key_vrf(int sk, union tcp_addr in_addr, uint8_t prefix,
int vrf, uint8_t sndid, uint8_t rcvid,
bool set_ao_required)
{
uint8_t keyflags = 0;
if (vrf >= 0)
keyflags |= TCP_AO_KEYF_IFINDEX;
else
vrf = 0;
if (set_ao_required) {
int err = test_set_ao_flags(sk, true, 0);
if (err)
return err;
}
return test_add_key_vrf(sk, ao_password, keyflags, in_addr, prefix,
(uint8_t)vrf, sndid, rcvid);
}
static bool test_continue(const char *tst_name, int err,
fault_t inj, bool added_ao)
{
bool expected_to_fail;
expected_to_fail = fault(PREINSTALL_AO) && added_ao;
expected_to_fail |= fault(PREINSTALL_MD5) && !added_ao;
if (!err) {
if (!expected_to_fail)
return true;
test_fail("%s: setsockopt()s were expected to fail", tst_name);
return false;
}
if (err != -EKEYREJECTED || !expected_to_fail) {
test_error("%s: setsockopt(%s) = %d", tst_name,
added_ao ? "TCP_AO_ADD_KEY" : "TCP_MD5SIG_EXT", err);
return false;
}
test_ok("%s: prefailed as expected: %m", tst_name);
return false;
}
static int open_add(const char *tst_name, unsigned int port,
unsigned int strategy,
union tcp_addr md5_addr, uint8_t md5_prefix, int md5_vrf,
union tcp_addr ao_addr, uint8_t ao_prefix,
int ao_vrf, bool set_ao_required,
uint8_t sndid, uint8_t rcvid,
fault_t inj)
{
int sk;
sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
if (sk < 0)
test_error("socket()");
if (client_bind(sk, this_ip_addr))
test_error("bind()");
if (strategy & PREINSTALL_MD5_FIRST) {
if (test_set_md5(sk, md5_addr, md5_prefix, md5_vrf, md5_password))
test_error("setsockopt(TCP_MD5SIG_EXT)");
}
if (strategy & PREINSTALL_AO) {
int err = try_add_key_vrf(sk, ao_addr, ao_prefix, ao_vrf,
sndid, rcvid, set_ao_required);
if (!test_continue(tst_name, err, inj, true)) {
close(sk);
return -1;
}
}
if (strategy & PREINSTALL_MD5) {
errno = 0;
test_set_md5(sk, md5_addr, md5_prefix, md5_vrf, md5_password);
if (!test_continue(tst_name, -errno, inj, false)) {
close(sk);
return -1;
}
}
return sk;
}
static void try_to_preadd(const char *tst_name, unsigned int port,
unsigned int strategy,
union tcp_addr md5_addr, uint8_t md5_prefix,
int md5_vrf,
union tcp_addr ao_addr, uint8_t ao_prefix,
int ao_vrf, bool set_ao_required,
uint8_t sndid, uint8_t rcvid,
int needs_tcp_md5, int needs_vrf, fault_t inj)
{
int sk;
if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
return;
if (needs_vrf && should_skip_test(tst_name, KCONFIG_NET_VRF))
return;
sk = open_add(tst_name, port, strategy, md5_addr, md5_prefix, md5_vrf,
ao_addr, ao_prefix, ao_vrf, set_ao_required,
sndid, rcvid, inj);
if (sk < 0)
return;
test_ok("%s", tst_name);
close(sk);
}
static void try_to_add(const char *tst_name, unsigned int port,
unsigned int strategy,
union tcp_addr md5_addr, uint8_t md5_prefix,
int md5_vrf,
union tcp_addr ao_addr, uint8_t ao_prefix,
int ao_vrf, uint8_t sndid, uint8_t rcvid,
int needs_tcp_md5, fault_t inj)
{
time_t timeout;
int sk, ret;
if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
return;
sk = open_add(tst_name, port, strategy, md5_addr, md5_prefix, md5_vrf,
ao_addr, ao_prefix, ao_vrf, 0, sndid, rcvid, inj);
if (sk < 0)
return;
synchronize_threads(); /* preparations done */
timeout = fault(TIMEOUT) ? TEST_RETRANSMIT_SEC : TEST_TIMEOUT_SEC;
ret = _test_connect_socket(sk, this_ip_dest, port, timeout);
if (ret <= 0) {
test_error("%s: connect() returned %d", tst_name, ret);
goto out;
}
if (strategy & POSTINSTALL_MD5) {
if (test_set_md5(sk, md5_addr, md5_prefix, md5_vrf, md5_password)) {
if (fault(POSTINSTALL)) {
test_ok("%s: postfailed as expected", tst_name);
goto out;
} else {
test_error("setsockopt(TCP_MD5SIG_EXT)");
}
} else if (fault(POSTINSTALL)) {
test_fail("%s: post setsockopt() was expected to fail", tst_name);
goto out;
}
}
if (strategy & POSTINSTALL_AO) {
if (try_add_key_vrf(sk, ao_addr, ao_prefix, ao_vrf,
sndid, rcvid, 0)) {
if (fault(POSTINSTALL)) {
test_ok("%s: postfailed as expected", tst_name);
goto out;
} else {
test_error("setsockopt(TCP_AO_ADD_KEY)");
}
} else if (fault(POSTINSTALL)) {
test_fail("%s: post setsockopt() was expected to fail", tst_name);
goto out;
}
}
out:
synchronize_threads(); /* close() */
/* _test_connect_socket() cleans up on failure */
if (ret > 0)
close(sk);
}
static void client_add_ip(union tcp_addr *client, const char *ip)
{
int family = TEST_FAMILY;
if (inet_pton(family, ip, client) != 1)
test_error("Can't convert ip address %s", ip);
if (ip_addr_add(veth_name, family, *client, TEST_PREFIX))
test_error("Failed to add ip address");
if (ip_route_add(veth_name, family, *client, this_ip_dest))
test_error("Failed to add route");
}
static void client_add_ips(void)
{
client_add_ip(&client2, __TEST_CLIENT_IP(2));
client_add_ip(&client3, __TEST_CLIENT_IP(3));
synchronize_threads(); /* server_add_routes() */
}
static void client_add_fail_tests(unsigned int *port)
{
try_to_add("TCP-AO established: add TCP-MD5 key",
(*port)++, POSTINSTALL_MD5 | PREINSTALL_AO,
this_ip_dest, TEST_PREFIX, -1, this_ip_dest, TEST_PREFIX, 0,
100, 100, 1, FAULT_POSTINSTALL);
try_to_add("TCP-MD5 established: add TCP-AO key",
(*port)++, PREINSTALL_MD5 | POSTINSTALL_AO,
this_ip_dest, TEST_PREFIX, -1, this_ip_dest, TEST_PREFIX, 0,
100, 100, 1, FAULT_POSTINSTALL);
try_to_add("non-signed established: add TCP-AO key",
(*port)++, POSTINSTALL_AO,
this_ip_dest, TEST_PREFIX, -1, this_ip_dest, TEST_PREFIX, 0,
100, 100, 0, FAULT_POSTINSTALL);
try_to_add("TCP-AO key intersects with existing TCP-MD5 key",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1, this_ip_addr, TEST_PREFIX, -1,
100, 100, 1, FAULT_PREINSTALL_AO);
try_to_add("TCP-MD5 key intersects with existing TCP-AO key",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1, this_ip_addr, TEST_PREFIX, -1,
100, 100, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("TCP-MD5 key + TCP-AO required",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, -1, true,
100, 100, 1, 0, FAULT_PREINSTALL_AO);
try_to_preadd("TCP-AO required on socket + TCP-MD5 key",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, -1, true,
100, 100, 1, 0, FAULT_PREINSTALL_MD5);
}
static void client_vrf_tests(unsigned int *port)
{
setup_vrfs();
/* The following restrictions for setsockopt()s are expected:
*
* |--------------|-----------------|-------------|-------------|
* | | MD5 key without | MD5 key | MD5 key |
* | | l3index | l3index=0 | l3index=N |
* |--------------|-----------------|-------------|-------------|
* | TCP-AO key | | | |
* | without | reject | reject | reject |
* | l3index | | | |
* |--------------|-----------------|-------------|-------------|
* | TCP-AO key | | | |
* | l3index=0 | reject | reject | allow |
* |--------------|-----------------|-------------|-------------|
* | TCP-AO key | | | |
* | l3index=N | reject | allow | reject |
* |--------------|-----------------|-------------|-------------|
*/
try_to_preadd("VRF: TCP-AO key (no l3index) + TCP-MD5 key (no l3index)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (no l3index) + TCP-AO key (no l3index)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
try_to_preadd("VRF: TCP-AO key (no l3index) + TCP-MD5 key (l3index=0)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, 0,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (l3index=0) + TCP-AO key (no l3index)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, 0,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
try_to_preadd("VRF: TCP-AO key (no l3index) + TCP-MD5 key (l3index=N)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (l3index=N) + TCP-AO key (no l3index)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
try_to_preadd("VRF: TCP-AO key (l3index=0) + TCP-MD5 key (no l3index)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (no l3index) + TCP-AO key (l3index=0)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
try_to_preadd("VRF: TCP-AO key (l3index=0) + TCP-MD5 key (l3index=0)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, 0,
this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (l3index=0) + TCP-AO key (l3index=0)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, 0,
this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
try_to_preadd("VRF: TCP-AO key (l3index=0) + TCP-MD5 key (l3index=N)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
1, 1, 0);
try_to_preadd("VRF: TCP-MD5 key (l3index=N) + TCP-AO key (l3index=0)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
1, 1, 0);
try_to_preadd("VRF: TCP-AO key (l3index=N) + TCP-MD5 key (no l3index)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (no l3index) + TCP-AO key (l3index=N)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, -1,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
try_to_preadd("VRF: TCP-AO key (l3index=N) + TCP-MD5 key (l3index=0)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, 0,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
1, 1, 0);
try_to_preadd("VRF: TCP-MD5 key (l3index=0) + TCP-AO key (l3index=N)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, 0,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
1, 1, 0);
try_to_preadd("VRF: TCP-AO key (l3index=N) + TCP-MD5 key (l3index=N)",
(*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
1, 1, FAULT_PREINSTALL_MD5);
try_to_preadd("VRF: TCP-MD5 key (l3index=N) + TCP-AO key (l3index=N)",
(*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
1, 1, FAULT_PREINSTALL_AO);
}
static void *client_fn(void *arg)
{
unsigned int port = test_server_port;
union tcp_addr addr_any = {};
client_add_ips();
try_connect("AO server (INADDR_ANY): AO client", port++, NULL, 0,
&addr_any, 0, 100, 100, 0, 0, 0, &this_ip_addr);
try_connect("AO server (INADDR_ANY): MD5 client", port++, &addr_any, 0,
NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
try_connect("AO server (INADDR_ANY): unsigned client", port++, NULL, 0,
NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 0, &this_ip_addr);
try_connect("AO server (AO_REQUIRED): AO client", port++, NULL, 0,
&addr_any, 0, 100, 100, 0, 0, 0, &this_ip_addr);
try_connect("AO server (AO_REQUIRED): unsigned client", port++, NULL, 0,
NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 0, &client2);
try_connect("MD5 server (INADDR_ANY): AO client", port++, NULL, 0,
&addr_any, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
try_connect("MD5 server (INADDR_ANY): MD5 client", port++, &addr_any, 0,
NULL, 0, 100, 100, 0, 0, 1, &this_ip_addr);
try_connect("MD5 server (INADDR_ANY): no sign client", port++, NULL, 0,
NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
try_connect("no sign server: AO client", port++, NULL, 0,
&addr_any, 0, 100, 100, 0, FAULT_TIMEOUT, 0, &this_ip_addr);
try_connect("no sign server: MD5 client", port++, &addr_any, 0,
NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
try_connect("no sign server: no sign client", port++, NULL, 0,
NULL, 0, 100, 100, 0, 0, 0, &this_ip_addr);
try_connect("AO+MD5 server: AO client (matching)", port++, NULL, 0,
&addr_any, 0, 100, 100, 0, 0, 1, &client2);
try_connect("AO+MD5 server: AO client (misconfig, matching MD5)",
port++, NULL, 0, &addr_any, 0, 100, 100, 0,
FAULT_TIMEOUT, 1, &this_ip_addr);
try_connect("AO+MD5 server: AO client (misconfig, non-matching)",
port++, NULL, 0, &addr_any, 0, 100, 100, 0,
FAULT_TIMEOUT, 1, &client3);
try_connect("AO+MD5 server: MD5 client (matching)", port++, &addr_any, 0,
NULL, 0, 100, 100, 0, 0, 1, &this_ip_addr);
try_connect("AO+MD5 server: MD5 client (misconfig, matching AO)",
port++, &addr_any, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
1, &client2);
try_connect("AO+MD5 server: MD5 client (misconfig, non-matching)",
port++, &addr_any, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
1, &client3);
try_connect("AO+MD5 server: no sign client (unmatched)",
port++, NULL, 0, NULL, 0, 100, 100, 0, 0, 1, &client3);
try_connect("AO+MD5 server: no sign client (misconfig, matching AO)",
port++, NULL, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
1, &client2);
try_connect("AO+MD5 server: no sign client (misconfig, matching MD5)",
port++, NULL, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
1, &this_ip_addr);
try_connect("AO+MD5 server: client with both [TCP-MD5] and TCP-AO keys",
port++, &this_ip_addr, TEST_PREFIX,
&client2, TEST_PREFIX, 100, 100, 0, FAULT_KEYREJECT,
1, &this_ip_addr);
try_connect("AO+MD5 server: client with both TCP-MD5 and [TCP-AO] keys",
port++, &this_ip_addr, TEST_PREFIX,
&client2, TEST_PREFIX, 100, 100, 0, FAULT_KEYREJECT,
1, &client2);
client_add_fail_tests(&port);
client_vrf_tests(&port);
return NULL;
}
int main(int argc, char *argv[])
{
test_init(72, server_fn, client_fn);
return 0;
}