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[bpf-next,v3,7/8] selftests/bpf: Use connect_to_fd_opts in do_test in bpf_tcp_ca

Message ID 21f2e0b294480147fff1deb97e82cad389351815.1716369375.git.tanggeliang@kylinos.cn (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series use network helpers, part 5 | expand

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Commit Message

Geliang Tang May 22, 2024, 9:23 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

This patch uses connect_to_fd_opts() instead of using connect_fd_to_fd()
and settcpca() in do_test() in prog_tests/bpf_tcp_ca.c to accept a struct
network_helper_opts argument.

Then define a dctcp dedicated post_socket_cb callback stg_post_socket_cb(),
invoking both cc_cb() and bpf_map_update_elem() in it, and set it in
test_dctcp(). For passing map_fd into stg_post_socket_cb() callback, a new
member map_fd is added in struct cb_opts.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 .../selftests/bpf/prog_tests/bpf_tcp_ca.c     | 36 +++++++++----------
 1 file changed, 16 insertions(+), 20 deletions(-)
diff mbox series

Patch

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 d37364c5beac..4c85b443a78c 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -25,6 +25,7 @@  static int expected_stg = 0xeB9F;
 
 struct cb_opts {
 	const char *cc;
+	int map_fd;
 };
 
 static int settcpca(int fd, const char *tcp_ca)
@@ -41,7 +42,6 @@  static int settcpca(int fd, const char *tcp_ca)
 static void do_test(const struct network_helper_opts *opts,
 		    const struct bpf_map *sk_stg_map)
 {
-	struct cb_opts *co = (struct cb_opts *)opts->cb_opts;
 	int lfd = -1, fd = -1;
 	int err;
 
@@ -49,25 +49,9 @@  static void do_test(const struct network_helper_opts *opts,
 	if (!ASSERT_NEQ(lfd, -1, "socket"))
 		return;
 
-	fd = socket(AF_INET6, SOCK_STREAM, 0);
-	if (!ASSERT_NEQ(fd, -1, "socket")) {
-		close(lfd);
-		return;
-	}
-
-	if (settcpca(fd, co->cc))
-		goto done;
-
-	if (sk_stg_map) {
-		err = bpf_map_update_elem(bpf_map__fd(sk_stg_map), &fd,
-					  &expected_stg, BPF_NOEXIST);
-		if (!ASSERT_OK(err, "bpf_map_update_elem(sk_stg_map)"))
-			goto done;
-	}
-
 	/* connect to server */
-	err = connect_fd_to_fd(fd, lfd, 0);
-	if (!ASSERT_NEQ(err, -1, "connect"))
+	fd = connect_to_fd_opts(lfd, opts);
+	if (!ASSERT_NEQ(fd, -1, "connect_to_fd_opts"))
 		goto done;
 
 	if (sk_stg_map) {
@@ -125,13 +109,24 @@  static void test_cubic(void)
 	bpf_cubic__destroy(cubic_skel);
 }
 
+static int stg_post_socket_cb(int fd, void *opts)
+{
+	struct cb_opts *cb_opts = (struct cb_opts *)opts;
+	int err;
+
+	err = cc_cb(fd, opts);
+	if (err)
+		return err;
+	return bpf_map_update_elem(cb_opts->map_fd, &fd, &expected_stg, BPF_NOEXIST);
+}
+
 static void test_dctcp(void)
 {
 	struct cb_opts cb_opts = {
 		.cc = "bpf_dctcp",
 	};
 	struct network_helper_opts opts = {
-		.post_socket_cb	= cc_cb,
+		.post_socket_cb	= stg_post_socket_cb,
 		.cb_opts	= &cb_opts,
 	};
 	struct bpf_dctcp *dctcp_skel;
@@ -147,6 +142,7 @@  static void test_dctcp(void)
 		return;
 	}
 
+	cb_opts.map_fd = bpf_map__fd(dctcp_skel->maps.sk_stg_map);
 	do_test(&opts, dctcp_skel->maps.sk_stg_map);
 	ASSERT_EQ(dctcp_skel->bss->stg_result, expected_stg, "stg_result");