tests: Add tcp sendmsg/recvmsg test

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

2 files changed, 274 insertions, 0 deletions

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 84063a7..0cb7f78 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -24,6 +24,7 @@ set(SWRAP_TESTS
     test_echo_tcp_connect
     test_echo_tcp_bind
     test_echo_tcp_socket_options
+    test_echo_tcp_sendmsg_recvmsg
     test_echo_tcp_write_read
     test_echo_tcp_writev_readv
     test_echo_tcp_get_peer_sock_name
diff --git a/tests/test_echo_tcp_sendmsg_recvmsg.c b/tests/test_echo_tcp_sendmsg_recvmsg.c
new file mode 100644
index 0000000..2adaa75
--- /dev/null
+++ b/tests/test_echo_tcp_sendmsg_recvmsg.c
@@ -0,0 +1,273 @@
+#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 int setup_echo_srv_tcp_ipv4(void **state)
+{
+	torture_setup_echo_srv_tcp_ipv4(state);
+
+	return 0;
+}
+
+#ifdef HAVE_IPV6
+static int setup_echo_srv_tcp_ipv6(void **state)
+{
+	torture_setup_echo_srv_tcp_ipv6(state);
+
+	return 0;
+}
+#endif
+
+static int teardown(void **state)
+{
+	torture_teardown_echo_srv(state);
+
+	return 0;
+}
+
+static void test_sendmsg_recvmsg_ipv4(void **state)
+{
+	struct torture_address addr = {
+		.sa_socklen = sizeof(struct sockaddr_storage),
+	};
+	char send_buf[64] = {0};
+	char recv_buf[64] = {0};
+	ssize_t ret;
+	int rc;
+	int i;
+	int s;
+
+	(void) state; /* unused */
+
+	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	assert_int_not_equal(s, -1);
+
+	addr.sa.in.sin_family = AF_INET;
+	addr.sa.in.sin_port = htons(torture_server_port());
+
+	rc = inet_pton(AF_INET,
+		       torture_server_address(AF_INET),
+		       &addr.sa.in.sin_addr);
+	assert_int_equal(rc, 1);
+
+	rc = connect(s, &addr.sa.s, addr.sa_socklen);
+
+	for (i = 0; i < 10; i++) {
+		struct torture_address reply_addr = {
+			.sa_socklen = sizeof(struct sockaddr_storage),
+		};
+		struct msghdr s_msg = {
+			.msg_namelen = 0,
+		};
+		struct msghdr r_msg = {
+			.msg_namelen = 0,
+		};
+		struct iovec s_iov;
+		struct iovec r_iov;
+
+		snprintf(send_buf, sizeof(send_buf), "packet.%d", i);
+
+		/* This should be ignored */
+		rc = inet_pton(AF_INET,
+			       "127.0.0.1",
+			       &addr.sa.in.sin_addr);
+		assert_int_equal(rc, 1);
+
+		s_msg.msg_name = &addr.sa.s;
+		s_msg.msg_namelen = addr.sa_socklen;
+
+		s_iov.iov_base = send_buf;
+		s_iov.iov_len = sizeof(send_buf);
+
+		s_msg.msg_iov = &s_iov;
+		s_msg.msg_iovlen = 1;
+
+		ret = sendmsg(s, &s_msg, 0);
+		assert_int_not_equal(ret, -1);
+
+		r_msg.msg_name = &reply_addr.sa.s;
+		r_msg.msg_namelen = reply_addr.sa_socklen;
+
+		r_iov.iov_base = recv_buf;
+		r_iov.iov_len = sizeof(recv_buf);
+
+		r_msg.msg_iov = &r_iov;
+		r_msg.msg_iovlen = 1;
+
+		ret = recvmsg(s, &r_msg, 0);
+		assert_int_not_equal(ret, -1);
+
+		assert_int_equal(r_msg.msg_namelen, 0);
+
+		assert_memory_equal(send_buf, recv_buf, sizeof(send_buf));
+	}
+
+	close(s);
+}
+
+#ifdef HAVE_IPV6
+static void test_sendmsg_recvmsg_ipv6(void **state)
+{
+	struct torture_address addr = {
+		.sa_socklen = sizeof(struct sockaddr_storage),
+	};
+	char send_buf[64] = {0};
+	char recv_buf[64] = {0};
+	ssize_t ret;
+	int rc;
+	int i;
+	int s;
+
+	(void) state; /* unused */
+
+	s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
+	assert_int_not_equal(s, -1);
+
+	addr.sa.in.sin_family = AF_INET6;
+	addr.sa.in.sin_port = htons(torture_server_port());
+
+	rc = inet_pton(AF_INET6,
+		       torture_server_address(AF_INET6),
+		       &addr.sa.in6.sin6_addr);
+	assert_int_equal(rc, 1);
+
+	rc = connect(s, &addr.sa.s, addr.sa_socklen);
+
+	for (i = 0; i < 10; i++) {
+		struct torture_address reply_addr = {
+			.sa_socklen = sizeof(struct sockaddr_in),
+		};
+		struct msghdr s_msg = {
+			.msg_namelen = 0,
+		};
+		struct msghdr r_msg = {
+			.msg_namelen = 0,
+		};
+		struct iovec s_iov;
+		struct iovec r_iov;
+
+		snprintf(send_buf, sizeof(send_buf), "packet.%d", i);
+
+		s_iov.iov_base = send_buf;
+		s_iov.iov_len = sizeof(send_buf);
+
+		s_msg.msg_iov = &s_iov;
+		s_msg.msg_iovlen = 1;
+
+		ret = sendmsg(s, &s_msg, 0);
+		assert_int_not_equal(ret, -1);
+
+		r_msg.msg_name = &reply_addr.sa.s;
+		r_msg.msg_namelen = reply_addr.sa_socklen;
+
+		r_iov.iov_base = recv_buf;
+		r_iov.iov_len = sizeof(recv_buf);
+
+		r_msg.msg_iov = &r_iov;
+		r_msg.msg_iovlen = 1;
+
+		ret = recvmsg(s, &r_msg, 0);
+		assert_int_not_equal(ret, -1);
+
+		assert_int_equal(r_msg.msg_namelen, 0);
+
+		assert_memory_equal(send_buf, recv_buf, sizeof(send_buf));
+	}
+
+	close(s);
+}
+#endif
+
+static void test_sendmsg_recvmsg_ipv4_null(void **state)
+{
+	struct torture_address s_addr = {
+		.sa_socklen = sizeof(struct sockaddr_storage),
+	};
+	struct msghdr s_msg = {
+		.msg_namelen = 0,
+	};
+	struct msghdr r_msg = {
+		.msg_namelen = 0,
+	};
+	struct iovec iov;
+	char payload[] = "PACKET";
+	ssize_t ret;
+	int rc;
+	int s;
+
+	(void)state; /* unused */
+
+	s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	assert_int_not_equal(s, -1);
+
+	s_addr.sa.in.sin_family = AF_INET;
+	s_addr.sa.in.sin_port = htons(torture_server_port());
+
+	rc = inet_pton(AF_INET,
+		       torture_server_address(AF_INET),
+		       &s_addr.sa.in.sin_addr);
+	assert_int_equal(rc, 1);
+
+	rc = connect(s, &s_addr.sa.s, s_addr.sa_socklen);
+
+	/* msg_name = NULL */
+
+	iov.iov_base = (void *)payload;
+	iov.iov_len = sizeof(payload);
+
+	s_msg.msg_iov = &iov;
+	s_msg.msg_iovlen = 1;
+
+	ret = sendmsg(s, &s_msg, 0);
+	assert_int_not_equal(ret, -1);
+
+	/* msg_name = NULL */
+
+	memset(payload, '0', sizeof(payload));
+
+	r_msg.msg_iov = &iov;
+	r_msg.msg_iovlen = 1;
+
+	ret = recvmsg(s, &r_msg, 0);
+	assert_int_not_equal(ret, -1);
+
+	assert_int_equal(r_msg.msg_namelen, 0);
+	assert_null(r_msg.msg_name);
+
+	close(s);
+}
+
+int main(void) {
+	int rc;
+
+	const struct CMUnitTest sendmsg_tests[] = {
+		cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4,
+						setup_echo_srv_tcp_ipv4,
+						teardown),
+		cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv4_null,
+						setup_echo_srv_tcp_ipv4,
+						teardown),
+#ifdef HAVE_IPV6
+		cmocka_unit_test_setup_teardown(test_sendmsg_recvmsg_ipv6,
+						setup_echo_srv_tcp_ipv6,
+						teardown),
+#endif
+	};
+
+	rc = cmocka_run_group_tests(sendmsg_tests, NULL, NULL);
+
+	return rc;
+}