[PATCH bpf-next v3 0/2] Use start_server and connect_fd_to_fd

[PATCH bpf-next v3 0/2] Use start_server and connect_fd_to_fd

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

v3:
 - split v2 as two patches as Daniel suggested.
 - The patch "selftests/bpf: Use start_server in bpf_tcp_ca" is merged
   by Daniel (thanks), but I forgot to drop 'settimeo(lfd, 0)' in it, so
   I send a squash-to patch to fix this.

Geliang Tang (2):
  Squash to "selftests/bpf: Use start_server in bpf_tcp_ca"
  selftests/bpf: Use connect_fd_to_fd in bpf_tcp_ca

 tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

-- 
2.40.1

[PATCH bpf-next v3 1/2] Squash to "selftests/bpf: Use start_server in bpf_tcp_ca"

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

Please add these lines into commit log:

'''
settimeo(lfd, 0) is invoked in start_server() already, drop the
duplicate one.
'''

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
index 94cb22b01482..f44abb990804 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -100,7 +100,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
 	}
 
 	if (settcpca(lfd, tcp_ca) || settcpca(fd, tcp_ca) ||
-	    settimeo(lfd, 0) || settimeo(fd, 0))
+	    settimeo(fd, 0))
 		goto done;
 
 	err = getsockname(lfd, (struct sockaddr *)&sa6, &addrlen);
-- 
2.40.1

[PATCH bpf-next v3 2/2] selftests/bpf: Use connect_fd_to_fd in bpf_tcp_ca

[Geliang Tang]

From: Geliang Tang <tanggeliang@kylinos.cn>

To simplify the code, use BPF selftests helper connect_fd_to_fd() in
bpf_tcp_ca.c instead of open-coding it. This helper is defined in
network_helpers.c, and exported in network_helpers.h, which is already
included in bpf_tcp_ca.c.

settimeo(fd, 0) is invoked in connect_fd_to_fd() already, drop the
duplicate one.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
index f44abb990804..3da3030c9365 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -78,11 +78,9 @@ static void *server(void *arg)
 
 static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
 {
-	struct sockaddr_in6 sa6 = {};
 	ssize_t nr_recv = 0, bytes = 0;
 	int lfd = -1, fd = -1;
 	pthread_t srv_thread;
-	socklen_t addrlen = sizeof(sa6);
 	void *thread_ret;
 	char batch[1500];
 	int err;
@@ -99,12 +97,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
 		return;
 	}
 
-	if (settcpca(lfd, tcp_ca) || settcpca(fd, tcp_ca) ||
-	    settimeo(fd, 0))
-		goto done;
-
-	err = getsockname(lfd, (struct sockaddr *)&sa6, &addrlen);
-	if (!ASSERT_NEQ(err, -1, "getsockname"))
+	if (settcpca(lfd, tcp_ca) || settcpca(fd, tcp_ca))
 		goto done;
 
 	if (sk_stg_map) {
@@ -115,7 +108,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
 	}
 
 	/* connect to server */
-	err = connect(fd, (struct sockaddr *)&sa6, addrlen);
+	err = connect_fd_to_fd(fd, lfd, 0);
 	if (!ASSERT_NEQ(err, -1, "connect"))
 		goto done;
 
-- 
2.40.1