mirror of
https://github.com/tmate-io/tmate.git
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301 lines
9.2 KiB
C
301 lines
9.2 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2010 by Aris Adamantiadis
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*
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* The SSH Library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* The SSH Library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the SSH Library; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*/
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#define LIBSSH_STATIC
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#include "torture.h"
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#include "session.c"
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#include "known_hosts.c"
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#define KNOWNHOSTFILES "libssh_torture_knownhosts"
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#define BADRSA "AAAAB3NzaC1yc2EAAAADAQABAAABAQChm5" \
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"a6Av65O8cKtx5YXOnui3wJnYE6A6J/I4kZSAibbn14Jcl+34VJQwv96f25AxNmo" \
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"NwoiZV93IzdypQmiuieh6s6wB9WhYjU9K/6CkIpNhpCxswA90b3ePjS7LnR9B9J" \
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"slPSbG1H0KC1c5lb7G3utXteXtM+4YvCvpN5VdC4CpghT+p0cwN2Na8Md5vRItz" \
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"YgIytryNn7LLiwYfoSxvWigFrTTZsrVtCOYyNgklmffpGdzuC43wdANvTewfI9G" \
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"o71r8EXmEc228CrYPmb8Scv3mpXFK/BosohSGkPlEHu9lf3YjnknBicDaVtJOYp" \
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"wnXJPjZo2EhG79HxDRpjJHH"
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#define BADDSA "AAAAB3NzaC1kc3MAAACBAITDKqGQ5aC5wHySG6ZdL1+BVBY2nLP5vzw3i3pvZfP" \
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"yNUS0UCwrt5pajsMvDRGXXebTJhWVonDnv8tpSgiuIBXMZrma8CU1KCFGRzwb/n8" \
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"cc5tJmIphlOUTrObjBmsRz7u1eZmoaddXC9ask6BNnt0DmhzYi2esL3mbardy8IN" \
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"zAAAAFQDlPFCm410pgQQPb3X5FWjyVEIl+QAAAIAp0vqfir8K8p+zP4dzFG7ppnt" \
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"DjaXf3ge6URF7f5xPDo6CClGo2JQ2REF8NxM7K9cLgR9Ifx2ahO48UMgrXEl/BOp" \
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"IQHpeBqUz26a49O5J0WEW16YSUHxWwMxWVe/SRmyKdTUZJ6fcepH88JNqm3XudNn" \
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"s78grM+yx9mcXnK2AsAAAAIBxpF8ZQIlGrSgwCmCfwjP156bC3Ya6LYf9ZpLJ0dX" \
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"EcxqLVllrNEvd2EGD9p16BYO2yaalYon8im59PtOcul2ay5XQ6rVDQ2T0pgNUpsI" \
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"h0dSi8VJXI1wes5HTyLsv9VBmU1uCXUUvufoQKfF/OcSH0ufcCpnd62g1/adZcy2" \
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"WJg=="
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static void setup(void **state) {
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int verbosity=torture_libssh_verbosity();
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ssh_session session = ssh_new();
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ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity);
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*state = session;
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}
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static void teardown(void **state) {
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ssh_session session = *state;
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ssh_disconnect(session);
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ssh_free(session);
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unlink(KNOWNHOSTFILES);
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}
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static void torture_knownhosts_port(void **state) {
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ssh_session session = *state;
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char buffer[200];
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char *p;
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FILE *file;
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int rc;
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/* Connect to localhost:22, force the port to 1234 and then write
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* the known hosts file. Then check that the entry written is
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* [localhost]:1234
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*/
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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rc = ssh_connect(session);
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assert_true(rc==SSH_OK);
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session->opts.port = 1234;
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rc = ssh_write_knownhost(session);
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assert_true(rc == SSH_OK);
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file = fopen(KNOWNHOSTFILES, "r");
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assert_true(file != NULL);
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p = fgets(buffer, sizeof(buffer), file);
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assert_false(p == NULL);
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fclose(file);
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buffer[sizeof(buffer) - 1] = '\0';
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assert_true(strstr(buffer,"[localhost]:1234 ") != NULL);
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ssh_disconnect(session);
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ssh_free(session);
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/* Now, connect back to the ssh server and verify the known host line */
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*state = session = ssh_new();
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ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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rc = ssh_connect(session);
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assert_true(rc == SSH_OK);
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session->opts.port = 1234;
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_KNOWN_OK);
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}
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static void torture_knownhosts_fail(void **state) {
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ssh_session session = *state;
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FILE *file;
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int rc;
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "ssh-rsa");
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assert_true(rc == SSH_OK);
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file = fopen(KNOWNHOSTFILES, "w");
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assert_true(file != NULL);
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fprintf(file, "localhost ssh-rsa %s\n", BADRSA);
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fclose(file);
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rc = ssh_connect(session);
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assert_true(rc==SSH_OK);
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_KNOWN_CHANGED);
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}
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static void torture_knownhosts_other(void **state) {
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ssh_session session = *state;
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FILE *file;
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int rc;
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "ssh-dss");
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assert_true(rc == SSH_OK);
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file = fopen(KNOWNHOSTFILES, "w");
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assert_true(file != NULL);
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fprintf(file, "localhost ssh-rsa %s\n", BADRSA);
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fclose(file);
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rc = ssh_connect(session);
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assert_true(rc==SSH_OK);
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_FOUND_OTHER);
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}
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static void torture_knownhosts_other_auto(void **state) {
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ssh_session session = *state;
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int rc;
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "ssh-dss");
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assert_true(rc == SSH_OK);
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rc = ssh_connect(session);
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assert_true(rc==SSH_OK);
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_NOT_KNOWN);
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rc = ssh_write_knownhost(session);
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assert_true(rc == SSH_OK);
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ssh_disconnect(session);
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ssh_free(session);
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/* connect again and check host key */
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*state = session = ssh_new();
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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rc = ssh_connect(session);
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assert_true(rc==SSH_OK);
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/* ssh-rsa is the default but libssh should try ssh-dss instead */
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_KNOWN_OK);
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}
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static void torture_knownhosts_conflict(void **state) {
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ssh_session session = *state;
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FILE *file;
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int rc;
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "ssh-rsa");
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assert_true(rc == SSH_OK);
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file = fopen(KNOWNHOSTFILES, "w");
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assert_true(file != NULL);
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fprintf(file, "localhost ssh-rsa %s\n", BADRSA);
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fprintf(file, "localhost ssh-dss %s\n", BADDSA);
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fclose(file);
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rc = ssh_connect(session);
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assert_true(rc==SSH_OK);
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_KNOWN_CHANGED);
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rc = ssh_write_knownhost(session);
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assert_true(rc==SSH_OK);
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ssh_disconnect(session);
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ssh_free(session);
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/* connect again and check host key */
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*state = session = ssh_new();
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ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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rc = ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "ssh-rsa");
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assert_true(rc == SSH_OK);
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rc = ssh_connect(session);
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assert_true(rc == SSH_OK);
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rc = ssh_is_server_known(session);
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assert_true(rc == SSH_SERVER_KNOWN_OK);
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}
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static void torture_knownhosts_precheck(void **state) {
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ssh_session session = *state;
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FILE *file;
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int rc;
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char **kex;
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rc = ssh_options_set(session, SSH_OPTIONS_HOST, "localhost");
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assert_true(rc == SSH_OK);
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rc = ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, KNOWNHOSTFILES);
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assert_true(rc == SSH_OK);
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file = fopen(KNOWNHOSTFILES, "w");
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assert_true(file != NULL);
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fprintf(file, "localhost ssh-rsa %s\n", BADRSA);
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fprintf(file, "localhost ssh-dss %s\n", BADDSA);
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fclose(file);
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kex = ssh_knownhosts_algorithms(session);
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assert_true(kex != NULL);
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assert_string_equal(kex[0],"ssh-rsa");
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assert_string_equal(kex[1],"ssh-dss");
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assert_true(kex[2]==NULL);
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free(kex[1]);
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free(kex[0]);
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free(kex);
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}
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int torture_run_tests(void) {
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int rc;
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const UnitTest tests[] = {
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unit_test_setup_teardown(torture_knownhosts_port, setup, teardown),
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unit_test_setup_teardown(torture_knownhosts_fail, setup, teardown),
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unit_test_setup_teardown(torture_knownhosts_other, setup, teardown),
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unit_test_setup_teardown(torture_knownhosts_other_auto, setup, teardown),
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unit_test_setup_teardown(torture_knownhosts_conflict, setup, teardown),
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unit_test_setup_teardown(torture_knownhosts_precheck, setup, teardown)
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};
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ssh_init();
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rc = run_tests(tests);
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ssh_finalize();
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return rc;
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}
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