tests: Add test to verify that the binded iface address is correct.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

1 files changed, 355 insertions, 0 deletions

diff --git a/tests/test_echo_tcp_get_peer_sock_name.c b/tests/test_echo_tcp_get_peer_sock_name.c
new file mode 100644
index 0000000..9be7a4b
--- /dev/null
+++ b/tests/test_echo_tcp_get_peer_sock_name.c
@@ -0,0 +1,355 @@
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+#include "config.h"
+#include "torture.h"
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static void setup_echo_srv_tcp_ipv4(void **state)
+{
+	torture_setup_echo_srv_tcp_ipv4(state);
+	setenv("SOCKET_WRAPPER_DEFAULT_IFACE", "20", 1);
+}
+
+static void teardown(void **state)
+{
+	torture_teardown_echo_srv(state);
+}
+
+static void _assert_sockaddr_equal(struct sockaddr_storage *ss, const char *a,
+				   const char * const file, const int line)
+{
+	char ip[INET6_ADDRSTRLEN] = { 0 };
+	struct sockaddr_in *sinp = (struct sockaddr_in *)ss;
+	const char *p;
+
+	p = inet_ntop(ss->ss_family,
+		      &sinp->sin_addr,
+		      ip,
+		      sizeof(ip));
+	assert_non_null(p);
+
+	_assert_string_equal(ip, a, file, line);
+}
+
+#define assert_sockaddr_equal(ss, a) \
+	_assert_sockaddr_equal(ss, a, __FILE__, __LINE__)
+
+static void _assert_sockaddr_port_equal(struct sockaddr_storage *ss, const char *a,
+					uint16_t port,
+					const char * const file, const int line)
+{
+	struct sockaddr_in *sinp = (struct sockaddr_in *)ss;
+
+	_assert_sockaddr_equal(ss, a, file, line);
+
+	_assert_int_equal(ntohs(sinp->sin_port), port, file, line);
+}
+
+#define assert_sockaddr_port_equal(ss, a, prt) \
+	_assert_sockaddr_port_equal(ss, a, prt, __FILE__, __LINE__)
+
+static void _assert_sockaddr_port_range_equal(struct sockaddr_storage *ss, const char *a,
+					      uint16_t min_port, uint16_t max_port,
+					      const char * const file, const int line)
+{
+	struct sockaddr_in *sinp = (struct sockaddr_in *)ss;
+
+	_assert_sockaddr_equal(ss, a, file, line);
+
+	_assert_in_range(ntohs(sinp->sin_port),
+			 min_port,
+			 max_port,
+			 file,
+			 line);
+}
+
+#define assert_sockaddr_port_range_equal(ss, a, min_prt, max_prt) \
+	_assert_sockaddr_port_range_equal(ss, a, min_prt, max_prt, __FILE__, __LINE__)
+
+static void test_connect_getsockname_getpeername(void **state)
+{
+	struct sockaddr_in sin;
+	socklen_t slen = sizeof(struct sockaddr_in);
+	struct sockaddr_storage cli_ss1;
+	socklen_t cli_ss1_len;
+	struct sockaddr_storage srv_ss1;
+	socklen_t srv_ss1_len;
+	int rc;
+	int s;
+
+	(void) state; /* unused */
+
+	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	assert_return_code(s, errno);
+
+	/* Bind client address to wildcard address */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+
+	rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr);
+	assert_int_equal(rc, 1);
+
+	rc = bind(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_range_equal(&cli_ss1, "127.0.0.20", 1024, 65535);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_int_equal(rc, -1);
+	assert_int_equal(errno, ENOTCONN);
+
+	/* connect */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_port = htons(torture_server_port());
+	rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr);
+	assert_int_equal(rc, 1);
+
+	/* Connect */
+	rc = connect(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_range_equal(&cli_ss1, "127.0.0.20", 1024, 65535);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&srv_ss1, "127.0.0.10", 7);
+
+	close(s);
+}
+
+static void test_connect_getsockname_getpeername_port(void **state)
+{
+	struct sockaddr_in sin;
+	socklen_t slen = sizeof(struct sockaddr_in);
+	struct sockaddr_storage cli_ss1;
+	socklen_t cli_ss1_len;
+	struct sockaddr_storage srv_ss1;
+	socklen_t srv_ss1_len;
+	int rc;
+	int s;
+
+	(void) state; /* unused */
+
+	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	assert_return_code(s, errno);
+
+	/* Bind client address to wildcard address */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+
+	rc = inet_pton(AF_INET, "127.0.0.20", &sin.sin_addr);
+	assert_int_equal(rc, 1);
+	sin.sin_port = htons(12345);
+
+	rc = bind(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&cli_ss1, "127.0.0.20", 12345);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_int_equal(rc, -1);
+	assert_int_equal(errno, ENOTCONN);
+
+	/* connect */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_port = htons(torture_server_port());
+	rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr);
+	assert_int_equal(rc, 1);
+
+	/* Connect */
+	rc = connect(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&cli_ss1, "127.0.0.20", 12345);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&srv_ss1, "127.0.0.10", 7);
+
+	close(s);
+}
+
+static void test_connect_getsockname_getpeername_any(void **state)
+{
+	struct sockaddr_in sin;
+	socklen_t slen = sizeof(struct sockaddr_in);
+	struct sockaddr_storage cli_ss1;
+	socklen_t cli_ss1_len;
+	struct sockaddr_storage srv_ss1;
+	socklen_t srv_ss1_len;
+	int rc;
+	int s;
+
+	(void) state; /* unused */
+
+	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	assert_return_code(s, errno);
+
+	/* Bind client address to wildcard address */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = htonl(INADDR_ANY);
+
+	rc = bind(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_range_equal(&cli_ss1, "0.0.0.0", 1024, 65535);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_int_equal(rc, -1);
+	assert_int_equal(errno, ENOTCONN);
+
+	/* connect */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_port = htons(torture_server_port());
+	rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr);
+	assert_int_equal(rc, 1);
+
+	/* Connect */
+	rc = connect(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_range_equal(&cli_ss1, "127.0.0.20", 1024, 65535);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&srv_ss1, "127.0.0.10", 7);
+
+	close(s);
+}
+
+static void test_connect_getsockname_getpeername_any_port(void **state)
+{
+	struct sockaddr_in sin;
+	socklen_t slen = sizeof(struct sockaddr_in);
+	struct sockaddr_storage cli_ss1;
+	socklen_t cli_ss1_len;
+	struct sockaddr_storage srv_ss1;
+	socklen_t srv_ss1_len;
+	int rc;
+	int s;
+
+	(void) state; /* unused */
+
+	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	assert_return_code(s, errno);
+
+	/* Bind client address to wildcard address */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_addr.s_addr = htonl(INADDR_ANY);
+	sin.sin_port = htons(12345);
+
+	rc = bind(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&cli_ss1, "0.0.0.0", 12345);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_int_equal(rc, -1);
+	assert_int_equal(errno, ENOTCONN);
+
+	/* connect */
+	ZERO_STRUCT(sin);
+	sin.sin_family = AF_INET;
+	sin.sin_port = htons(torture_server_port());
+	rc = inet_pton(AF_INET, torture_server_address(AF_INET), &sin.sin_addr);
+	assert_int_equal(rc, 1);
+
+	/* Connect */
+	rc = connect(s, (struct sockaddr *)&sin, slen);
+	assert_return_code(rc, errno);
+
+	ZERO_STRUCT(cli_ss1);
+	cli_ss1_len = sizeof(cli_ss1);
+	rc = getsockname(s, (struct sockaddr *)&cli_ss1, &cli_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&cli_ss1, "127.0.0.20", 12345);
+
+	ZERO_STRUCT(srv_ss1);
+	srv_ss1_len = sizeof(srv_ss1);
+	rc = getpeername(s, (struct sockaddr *)&srv_ss1, &srv_ss1_len);
+	assert_return_code(rc, errno);
+	assert_sockaddr_port_equal(&srv_ss1, "127.0.0.10", 7);
+
+	close(s);
+}
+
+int main(void) {
+	int rc;
+
+	const UnitTest tests[] = {
+		unit_test_setup_teardown(test_connect_getsockname_getpeername,
+					 setup_echo_srv_tcp_ipv4,
+					 teardown),
+		unit_test_setup_teardown(test_connect_getsockname_getpeername_port,
+					 setup_echo_srv_tcp_ipv4,
+					 teardown),
+		unit_test_setup_teardown(test_connect_getsockname_getpeername_any,
+					 setup_echo_srv_tcp_ipv4,
+					 teardown),
+		unit_test_setup_teardown(test_connect_getsockname_getpeername_any_port,
+					 setup_echo_srv_tcp_ipv4,
+					 teardown),
+	};
+
+	rc = run_tests(tests);
+
+	return rc;
+}