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tests: Add a test case for T75

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The test checks if the client can handle the error returned by the
server when the maximum number of channel sessions is exceeded.

Fixes T239

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Anderson Toshiyuki Sasaki
2020-07-14 20:24:39 +02:00
committed by Andreas Schneider
parent 90e56df74e
commit 3e23fb8a24
1 changed files with 56 additions and 0 deletions
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56
tests/client/torture_session.c
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@@ -166,6 +166,58 @@ static void torture_channel_poll_timeout(void **state) {
ssh_channel_free(channel);
}
/*
* Check that the client can properly handle the error returned from the server
* when the maximum number of sessions is exceeded.
*
* Related: T75, T239
*
*/
static void torture_max_sessions(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
char max_session_config[32] = {0};
#define MAX_CHANNELS 10
ssh_channel channels[MAX_CHANNELS + 1];
size_t i;
int rc;
snprintf(max_session_config,
sizeof(max_session_config),
"MaxSessions %u",
MAX_CHANNELS);
/* Update server configuration to limit number of sessions */
torture_update_sshd_config(state, max_session_config);
/* Open the maximum number of channel sessions */
for (i = 0; i < MAX_CHANNELS; i++) {
channels[i] = ssh_channel_new(session);
assert_non_null(channels[i]);
rc = ssh_channel_open_session(channels[i]);
assert_ssh_return_code(session, rc);
}
/* Try to open an extra session and expect failure */
channels[i] = ssh_channel_new(session);
assert_non_null(channels[i]);
rc = ssh_channel_open_session(channels[i]);
assert_int_equal(rc, SSH_ERROR);
/* Free the unused channel */
ssh_channel_free(channels[i]);
/* Close and free channels */
for (i = 0; i < MAX_CHANNELS; i++) {
ssh_channel_close(channels[i]);
ssh_channel_free(channels[i]);
}
#undef MAX_CHANNELS
}
int torture_run_tests(void) {
int rc;
struct CMUnitTest tests[] = {
@@ -178,12 +230,16 @@ int torture_run_tests(void) {
cmocka_unit_test_setup_teardown(torture_channel_poll_timeout,
session_setup,
session_teardown),
cmocka_unit_test_setup_teardown(torture_max_sessions,
session_setup,
session_teardown),
};
ssh_init();
torture_filter_tests(tests);
rc = cmocka_run_group_tests(tests, sshd_setup, sshd_teardown);
ssh_finalize();
return rc;