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/*
* This file is part of the SSH Library
*
* Copyright (c) 2012 by Aris Adamantiadis
*
* The SSH Library 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.
*
* The SSH Library 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 the SSH Library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#include "config.h"
#define LIBSSH_STATIC
#include "torture.h"
#include "libssh/libssh.h"
#include "libssh/priv.h"
#include "libssh/session.h"
#include "libssh/callbacks.h"
#include <sys/types.h>
#include <pwd.h>
#include <errno.h>
#define STATE_SUCCESS (1)
#define STATE_FAILURE (2)
struct callback_state
{
int open_response;
int request_response;
ssh_session expected_session;
ssh_channel expected_channel;
struct ssh_channel_callbacks_struct *callback;
};
static void on_open_response(ssh_session session, ssh_channel channel, bool is_success, void *userdata)
{
struct callback_state *state = (struct callback_state*)userdata;
assert_ptr_equal(state->expected_session, session);
assert_ptr_equal(state->expected_channel, channel);
state->open_response = is_success ? STATE_SUCCESS : STATE_FAILURE;
}
static void on_request_response(ssh_session session, ssh_channel channel, void *userdata)
{
struct callback_state *state = (struct callback_state*)userdata;
assert_ptr_equal(state->expected_session, session);
assert_ptr_equal(state->expected_channel, channel);
state->request_response = STATE_SUCCESS;
}
static struct callback_state *set_callbacks(ssh_session session, ssh_channel channel)
{
int rc;
struct ssh_channel_callbacks_struct *cb;
struct callback_state *cb_state = NULL;
cb_state = (struct callback_state *)calloc(1,
sizeof(struct callback_state));
assert_non_null(cb_state);
cb_state->expected_session = session;
cb_state->expected_channel = channel;
cb = (struct ssh_channel_callbacks_struct *)calloc(1,
sizeof(struct ssh_channel_callbacks_struct));
assert_non_null(cb);
ssh_callbacks_init(cb);
cb->userdata = cb_state;
cb->channel_open_response_function = on_open_response;
cb->channel_request_response_function = on_request_response;
rc = ssh_set_channel_callbacks(channel, cb);
assert_ssh_return_code(session, rc);
/* Keep the reference so it can be cleaned up later */
cb_state->callback = cb;
return cb_state;
}
static int sshd_setup(void **state)
{
torture_setup_sshd_server(state, false);
return 0;
}
static int sshd_teardown(void **state)
{
torture_teardown_sshd_server(state);
return 0;
}
static int session_setup(void **state)
{
struct torture_state *s = *state;
struct passwd *pwd;
int rc;
pwd = getpwnam("bob");
assert_non_null(pwd);
rc = setuid(pwd->pw_uid);
assert_return_code(rc, errno);
s->ssh.session = torture_ssh_session(s,
TORTURE_SSH_SERVER,
NULL,
TORTURE_SSH_USER_ALICE,
NULL);
assert_non_null(s->ssh.session);
return 0;
}
static int session_teardown(void **state)
{
struct torture_state *s = *state;
ssh_disconnect(s->ssh.session);
ssh_free(s->ssh.session);
return 0;
}
static void torture_open_success(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
ssh_channel channel;
int rc;
struct callback_state *cb_state = NULL;
channel = ssh_channel_new(session);
assert_non_null(channel);
cb_state = set_callbacks(session, channel);
rc = ssh_channel_open_session(channel);
assert_ssh_return_code(session, rc);
assert_int_equal(STATE_SUCCESS, cb_state->open_response);
ssh_channel_free(channel);
free(cb_state->callback);
free(cb_state);
}
static void torture_open_failure(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
ssh_channel channel;
int rc;
struct callback_state *cb_state = NULL;
channel = ssh_channel_new(session);
assert_non_null(channel);
cb_state = set_callbacks(session, channel);
rc = ssh_channel_open_forward(channel, "0.0.0.0", 0, "0.0.0.0", 0);
assert_ssh_return_code_equal(session, rc, SSH_ERROR);
assert_int_equal(STATE_FAILURE, cb_state->open_response);
ssh_channel_free(channel);
free(cb_state->callback);
free(cb_state);
}
static void torture_request_success(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
ssh_channel channel;
int rc;
struct callback_state *cb_state = NULL;
channel = ssh_channel_new(session);
assert_non_null(channel);
cb_state = set_callbacks(session, channel);
rc = ssh_channel_open_session(channel);
assert_ssh_return_code(session, rc);
rc = ssh_channel_request_exec(channel, "echo -n ABCD");
assert_ssh_return_code(session, rc);
assert_int_equal(STATE_SUCCESS, cb_state->request_response);
ssh_channel_free(channel);
free(cb_state->callback);
free(cb_state);
}
static void torture_request_failure(void **state)
{
struct torture_state *s = *state;
ssh_session session = s->ssh.session;
ssh_channel channel;
int rc;
struct callback_state *cb_state = NULL;
channel = ssh_channel_new(session);
assert_non_null(channel);
cb_state = set_callbacks(session, channel);
rc = ssh_channel_open_session(channel);
assert_ssh_return_code(session, rc);
rc = ssh_channel_request_env(channel, "NOT_ACCEPTED", "VALUE");
assert_ssh_return_code_equal(session, rc, SSH_ERROR);
assert_int_equal(STATE_SUCCESS, cb_state->request_response);
ssh_channel_free(channel);
free(cb_state->callback);
free(cb_state);
}
int torture_run_tests(void)
{
int rc;
struct CMUnitTest tests[] = {
cmocka_unit_test_setup_teardown(torture_open_success,
session_setup,
session_teardown),
cmocka_unit_test_setup_teardown(torture_open_failure,
session_setup,
session_teardown),
cmocka_unit_test_setup_teardown(torture_request_success,
session_setup,
session_teardown),
cmocka_unit_test_setup_teardown(torture_request_failure,
session_setup,
session_teardown),
};
ssh_init();
torture_filter_tests(tests);
rc = cmocka_run_group_tests(tests, sshd_setup, sshd_teardown);
ssh_finalize();
return rc;
}
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