[PATCH bpf-next v3 5/9] selftests/bpf: Use start_server_addr in sk_assign

[Geliang Tang <geliang@xxxxxxxxxx>]

From: Geliang Tang <tanggeliang@xxxxxxxxxx>

Include network_helpers.h in prog_tests/sk_assign.c, use the newly
added public helper start_server_addr() instead of the local defined
function start_server(). This can avoid duplicate code.

The code that sets SO_RCVTIMEO timeout as timeo_sec (3s) can be dropped,
since start_server_addr() sets default timeout as 3s.

Signed-off-by: Geliang Tang <tanggeliang@xxxxxxxxxx>
---
 .../selftests/bpf/prog_tests/sk_assign.c      | 33 +++----------------
 1 file changed, 5 insertions(+), 28 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sk_assign.c b/tools/testing/selftests/bpf/prog_tests/sk_assign.c
index 1374b626a985..70c1a5893830 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_assign.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_assign.c
@@ -15,6 +15,7 @@
 #include <unistd.h>
 
 #include "test_progs.h"
+#include "network_helpers.h"
 
 #define BIND_PORT 1234
 #define CONNECT_PORT 4321
@@ -73,30 +74,6 @@ configure_stack(void)
 	return true;
 }
 
-static int
-start_server(const struct sockaddr *addr, socklen_t len, int type)
-{
-	int fd;
-
-	fd = socket(addr->sa_family, type, 0);
-	if (CHECK_FAIL(fd == -1))
-		goto out;
-	if (CHECK_FAIL(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeo_sec,
-				  timeo_optlen)))
-		goto close_out;
-	if (CHECK_FAIL(bind(fd, addr, len) == -1))
-		goto close_out;
-	if (type == SOCK_STREAM && CHECK_FAIL(listen(fd, 128) == -1))
-		goto close_out;
-
-	goto out;
-close_out:
-	close(fd);
-	fd = -1;
-out:
-	return fd;
-}
-
 static int
 connect_to_server(const struct sockaddr *addr, socklen_t len, int type)
 {
@@ -302,15 +279,15 @@ void test_sk_assign(void)
 
 	for (i = 0; i < ARRAY_SIZE(tests) && !READ_ONCE(stop); i++) {
 		struct test_sk_cfg *test = &tests[i];
-		const struct sockaddr *addr;
+		const struct sockaddr_storage *addr;
 		const int zero = 0;
 		int err;
 
 		if (!test__start_subtest(test->name))
 			continue;
 		prepare_addr(test->addr, test->family, BIND_PORT, false);
-		addr = (const struct sockaddr *)test->addr;
-		server = start_server(addr, test->len, test->type);
+		addr = (const struct sockaddr_storage *)test->addr;
+		server = start_server_addr(test->type, addr, test->len);
 		if (server == -1)
 			goto close;
 
@@ -323,7 +300,7 @@ void test_sk_assign(void)
 		/* connect to unbound ports */
 		prepare_addr(test->addr, test->family, CONNECT_PORT,
 			     test->rewrite_addr);
-		if (run_test(server, addr, test->len, test->type))
+		if (run_test(server, test->addr, test->len, test->type))
 			goto close;
 
 		close(server);
-- 
2.40.1