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connect: Support AddressFamily option

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* allow parsing of AddressFamily in config and cli
  * supports options "any", "inet" and "inet6"
* introduce SSH_OPTIONS_ADDRESS_FAMILY

Signed-off-by: Samir Benmendil <me@rmz.io>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Samir Benmendil
2025-12-15 19:16:15 +00:00
parent f52be27114
commit c4f1a70a89
10 changed files with 247 additions and 12 deletions
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93
tests/unittests/torture_config.c
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@@ -46,6 +46,7 @@ extern LIBSSH_THREAD int ssh_log_level;
#define LIBSSH_TESTCONFIG15 "libssh_testconfig15.tmp"
#define LIBSSH_TESTCONFIG16 "libssh_testconfig16.tmp"
#define LIBSSH_TESTCONFIG17 "libssh_testconfig17.tmp"
#define LIBSSH_TESTCONFIG18 "libssh_testconfig18.tmp"
#define LIBSSH_TESTCONFIGGLOB "libssh_testc*[36].tmp"
#define LIBSSH_TEST_PUBKEYTYPES "libssh_test_PubkeyAcceptedKeyTypes.tmp"
#define LIBSSH_TEST_PUBKEYALGORITHMS "libssh_test_PubkeyAcceptedAlgorithms.tmp"
@@ -222,6 +223,15 @@ extern LIBSSH_THREAD int ssh_log_level;
"\tControlMaster yes\n" \
"\tControlPath none\n"
#define LIBSSH_TESTCONFIG_STRING18 \
"Host simple\n" \
"Host af\n" \
"\tAddressFamily any\n" \
"Host af4\n" \
"\tAddressFamily inet\n" \
"Host af6\n" \
"\tAddressFamily inet6\n"
#define LIBSSH_TEST_PUBKEYTYPES_STRING \
"PubkeyAcceptedKeyTypes "PUBKEYACCEPTEDTYPES"\n"
@@ -292,6 +302,7 @@ static int setup_config_files(void **state)
unlink(LIBSSH_TESTCONFIG15);
unlink(LIBSSH_TESTCONFIG16);
unlink(LIBSSH_TESTCONFIG17);
unlink(LIBSSH_TESTCONFIG18);
unlink(LIBSSH_TEST_PUBKEYTYPES);
unlink(LIBSSH_TEST_PUBKEYALGORITHMS);
unlink(LIBSSH_TEST_NONEWLINEEND);
@@ -350,6 +361,8 @@ static int setup_config_files(void **state)
LIBSSH_TESTCONFIG_STRING16);
torture_write_file(LIBSSH_TESTCONFIG17,
LIBSSH_TESTCONFIG_STRING17);
torture_write_file(LIBSSH_TESTCONFIG18,
LIBSSH_TESTCONFIG_STRING18);
torture_write_file(LIBSSH_TEST_PUBKEYTYPES,
LIBSSH_TEST_PUBKEYTYPES_STRING);
@@ -392,6 +405,7 @@ static int teardown_config_files(void **state)
unlink(LIBSSH_TESTCONFIG15);
unlink(LIBSSH_TESTCONFIG16);
unlink(LIBSSH_TESTCONFIG17);
unlink(LIBSSH_TESTCONFIG18);
unlink(LIBSSH_TEST_PUBKEYTYPES);
unlink(LIBSSH_TEST_PUBKEYALGORITHMS);
unlink(LIBSSH_TEST_NONEWLINEEND);
@@ -1520,6 +1534,79 @@ static void torture_config_control_master_file(void **state)
torture_config_control_master(state, LIBSSH_TESTCONFIG17, NULL);
}
/**
* @brief Verify we can parse AdressFamily configuration option
*/
static void torture_config_address_family(void **state,
const char *file,
const char *string)
{
ssh_session session = *state;
const char *config;
torture_reset_config(session);
ssh_options_set(session, SSH_OPTIONS_HOST, "simple");
_parse_config(session, file, string, SSH_OK);
assert_int_equal(session->opts.address_family, SSH_ADDRESS_FAMILY_ANY);
torture_reset_config(session);
ssh_options_set(session, SSH_OPTIONS_HOST, "af");
_parse_config(session, file, string, SSH_OK);
assert_int_equal(session->opts.address_family, SSH_ADDRESS_FAMILY_ANY);
torture_reset_config(session);
ssh_options_set(session, SSH_OPTIONS_HOST, "af4");
_parse_config(session, file, string, SSH_OK);
assert_int_equal(session->opts.address_family, SSH_ADDRESS_FAMILY_INET);
torture_reset_config(session);
ssh_options_set(session, SSH_OPTIONS_HOST, "af6");
_parse_config(session, file, string, SSH_OK);
assert_int_equal(session->opts.address_family, SSH_ADDRESS_FAMILY_INET6);
/* test for parsing failures */
config = "Host afmissing\n"
"\tAddressFamily\n";
if (file != NULL) {
torture_write_file(file, config);
} else {
string = config;
}
torture_reset_config(session);
ssh_options_set(session, SSH_OPTIONS_HOST, "afmissing");
_parse_config(session, file, string, SSH_ERROR);
config = "Host afinvalid\n"
"\tAddressFamily wurstkäse\n";
if (file != NULL) {
torture_write_file(file, config);
} else {
string = config;
}
torture_reset_config(session);
ssh_options_set(session, SSH_OPTIONS_HOST, "afinvalid");
_parse_config(session, file, string, SSH_ERROR);
}
/**
* @brief Verify we can parse AdressFamily configuration option from string
*/
static void torture_config_address_family_string(void **state)
{
torture_config_address_family(state, NULL, LIBSSH_TESTCONFIG_STRING18);
}
/**
* @brief Verify we can parse AdressFamily configuration option from file
*/
static void torture_config_address_family_file(void **state)
{
torture_config_address_family(state, LIBSSH_TESTCONFIG18, NULL);
}
/**
* @brief Verify the configuration parser handles all the possible
* versions of RekeyLimit configuration option.
@@ -2707,6 +2794,12 @@ int torture_run_tests(void)
cmocka_unit_test_setup_teardown(torture_config_control_master_string,
setup,
teardown),
cmocka_unit_test_setup_teardown(torture_config_address_family_file,
setup,
teardown),
cmocka_unit_test_setup_teardown(torture_config_address_family_string,
setup,
teardown),
cmocka_unit_test_setup_teardown(torture_config_rekey_file,
setup,
teardown),