diff mbox series

[bpf-next,v2,2/4] selftests/bpf: Use start_server_addr in bpf_tcp_ca

Message ID bc13f05ea454890af39ebefb7231b66b545f0486.1715745588.git.tanggeliang@kylinos.cn
State New
Headers show
Series use network helpers, part 5 | expand

Commit Message

Geliang Tang May 15, 2024, 4:20 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

This patch uses start_server_addr() in do_test() in prog_tests/bpf_tcp_ca.c
to accept a struct network_helper_opts argument instead of using
start_server() and settcpca(). Then change the type of the first paramenter
of do_test() into a struct network_helper_opts one.

Define its own opts for each test, set its own cc name into cb_opts.cc, and
cc_cb() into post_socket_cb callback, then pass it to do_test().

opts->cb_opts needs to be passed to post_socket_cb() in __start_server().

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/bpf/network_helpers.c |  2 +-
 .../selftests/bpf/prog_tests/bpf_tcp_ca.c     | 52 +++++++++++++++----
 2 files changed, 42 insertions(+), 12 deletions(-)

Comments

Martin KaFai Lau May 21, 2024, 5:02 p.m. UTC | #1 
On 5/14/24 9:20 PM, Geliang Tang wrote:
> From: Geliang Tang <tanggeliang@kylinos.cn>
> 
> This patch uses start_server_addr() in do_test() in prog_tests/bpf_tcp_ca.c
> to accept a struct network_helper_opts argument instead of using
> start_server() and settcpca(). Then change the type of the first paramenter
> of do_test() into a struct network_helper_opts one.
> 
> Define its own opts for each test, set its own cc name into cb_opts.cc, and
> cc_cb() into post_socket_cb callback, then pass it to do_test().
> 
> opts->cb_opts needs to be passed to post_socket_cb() in __start_server().
> 
> Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
> ---
>   tools/testing/selftests/bpf/network_helpers.c |  2 +-
>   .../selftests/bpf/prog_tests/bpf_tcp_ca.c     | 52 +++++++++++++++----
>   2 files changed, 42 insertions(+), 12 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
> index d97f8a669b38..6864af665508 100644
> --- a/tools/testing/selftests/bpf/network_helpers.c
> +++ b/tools/testing/selftests/bpf/network_helpers.c
> @@ -94,7 +94,7 @@ static int __start_server(int type, const struct sockaddr *addr, socklen_t addrl
>   	if (settimeo(fd, opts->timeout_ms))
>   		goto error_close;
>   
> -	if (opts->post_socket_cb && opts->post_socket_cb(fd, NULL)) {
> +	if (opts->post_socket_cb && opts->post_socket_cb(fd, &opts->cb_opts)) {
>   		log_err("Failed to call post_socket_cb");
>   		goto error_close;
>   	}
> 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 9bc909fa0833..25961ce850cb 100644
> --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
> +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
> @@ -34,12 +34,18 @@ static int settcpca(int fd, const char *tcp_ca)
>   	return 0;
>   }
>   
> -static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
> +static void do_test(const struct network_helper_opts *opts,
> +		    const struct bpf_map *sk_stg_map)
>   {
> +	struct sockaddr_storage addr;
>   	int lfd = -1, fd = -1;
> +	socklen_t addrlen;
>   	int err;
>   
> -	lfd = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
> +	if (make_sockaddr(AF_INET6, NULL, 0, &addr, &addrlen))
> +		return;
> +
> +	lfd = start_server_addr(SOCK_STREAM, &addr, addrlen, opts);

It is a tech debt that start_server does not take the "opts" argument.
It is pretty handy to have start_server as a helper that takes string address.

How about create a start_server_str() and start using it in this set. The other 
existing start_server() usages can be retired later.

int start_server_str(int family, int type, const char *addr, __u16 port,
		     const struct network_helper_opts *opts);
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index d97f8a669b38..6864af665508 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -94,7 +94,7 @@  static int __start_server(int type, const struct sockaddr *addr, socklen_t addrl
 	if (settimeo(fd, opts->timeout_ms))
 		goto error_close;
 
-	if (opts->post_socket_cb && opts->post_socket_cb(fd, NULL)) {
+	if (opts->post_socket_cb && opts->post_socket_cb(fd, &opts->cb_opts)) {
 		log_err("Failed to call post_socket_cb");
 		goto error_close;
 	}
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 9bc909fa0833..25961ce850cb 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -34,12 +34,18 @@  static int settcpca(int fd, const char *tcp_ca)
 	return 0;
 }
 
-static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
+static void do_test(const struct network_helper_opts *opts,
+		    const struct bpf_map *sk_stg_map)
 {
+	struct sockaddr_storage addr;
 	int lfd = -1, fd = -1;
+	socklen_t addrlen;
 	int err;
 
-	lfd = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (make_sockaddr(AF_INET6, NULL, 0, &addr, &addrlen))
+		return;
+
+	lfd = start_server_addr(SOCK_STREAM, &addr, addrlen, opts);
 	if (!ASSERT_NEQ(lfd, -1, "socket"))
 		return;
 
@@ -49,7 +55,7 @@  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))
+	if (settcpca(fd, opts->cb_opts.cc))
 		goto done;
 
 	if (sk_stg_map) {
@@ -89,6 +95,10 @@  static int cc_cb(int fd, const struct post_socket_opts *opts)
 
 static void test_cubic(void)
 {
+	struct network_helper_opts opts = {
+		.cb_opts.cc = "bpf_cubic",
+		.post_socket_cb = cc_cb,
+	};
 	struct bpf_cubic *cubic_skel;
 	struct bpf_link *link;
 
@@ -102,7 +112,7 @@  static void test_cubic(void)
 		return;
 	}
 
-	do_test("bpf_cubic", NULL);
+	do_test(&opts, NULL);
 
 	ASSERT_EQ(cubic_skel->bss->bpf_cubic_acked_called, 1, "pkts_acked called");
 
@@ -112,6 +122,10 @@  static void test_cubic(void)
 
 static void test_dctcp(void)
 {
+	struct network_helper_opts opts = {
+		.cb_opts.cc = "bpf_dctcp",
+		.post_socket_cb = cc_cb,
+	};
 	struct bpf_dctcp *dctcp_skel;
 	struct bpf_link *link;
 
@@ -125,7 +139,7 @@  static void test_dctcp(void)
 		return;
 	}
 
-	do_test("bpf_dctcp", 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");
 
 	bpf_link__destroy(link);
@@ -304,6 +318,10 @@  static void test_unsupp_cong_op(void)
 
 static void test_update_ca(void)
 {
+	struct network_helper_opts opts = {
+		.cb_opts.cc = "tcp_ca_update",
+		.post_socket_cb = cc_cb,
+	};
 	struct tcp_ca_update *skel;
 	struct bpf_link *link;
 	int saved_ca1_cnt;
@@ -316,14 +334,14 @@  static void test_update_ca(void)
 	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
 	ASSERT_OK_PTR(link, "attach_struct_ops");
 
-	do_test("tcp_ca_update", NULL);
+	do_test(&opts, NULL);
 	saved_ca1_cnt = skel->bss->ca1_cnt;
 	ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt");
 
 	err = bpf_link__update_map(link, skel->maps.ca_update_2);
 	ASSERT_OK(err, "update_map");
 
-	do_test("tcp_ca_update", NULL);
+	do_test(&opts, NULL);
 	ASSERT_EQ(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt");
 	ASSERT_GT(skel->bss->ca2_cnt, 0, "ca2_ca2_cnt");
 
@@ -333,6 +351,10 @@  static void test_update_ca(void)
 
 static void test_update_wrong(void)
 {
+	struct network_helper_opts opts = {
+		.cb_opts.cc = "tcp_ca_update",
+		.post_socket_cb = cc_cb,
+	};
 	struct tcp_ca_update *skel;
 	struct bpf_link *link;
 	int saved_ca1_cnt;
@@ -345,14 +367,14 @@  static void test_update_wrong(void)
 	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
 	ASSERT_OK_PTR(link, "attach_struct_ops");
 
-	do_test("tcp_ca_update", NULL);
+	do_test(&opts, NULL);
 	saved_ca1_cnt = skel->bss->ca1_cnt;
 	ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt");
 
 	err = bpf_link__update_map(link, skel->maps.ca_wrong);
 	ASSERT_ERR(err, "update_map");
 
-	do_test("tcp_ca_update", NULL);
+	do_test(&opts, NULL);
 	ASSERT_GT(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt");
 
 	bpf_link__destroy(link);
@@ -361,6 +383,10 @@  static void test_update_wrong(void)
 
 static void test_mixed_links(void)
 {
+	struct network_helper_opts opts = {
+		.cb_opts.cc = "tcp_ca_update",
+		.post_socket_cb = cc_cb,
+	};
 	struct tcp_ca_update *skel;
 	struct bpf_link *link, *link_nl;
 	int err;
@@ -375,7 +401,7 @@  static void test_mixed_links(void)
 	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
 	ASSERT_OK_PTR(link, "attach_struct_ops");
 
-	do_test("tcp_ca_update", NULL);
+	do_test(&opts, NULL);
 	ASSERT_GT(skel->bss->ca1_cnt, 0, "ca1_ca1_cnt");
 
 	err = bpf_link__update_map(link, skel->maps.ca_no_link);
@@ -462,6 +488,10 @@  static void test_tcp_ca_kfunc(void)
 
 static void test_cc_cubic(void)
 {
+	struct network_helper_opts opts = {
+		.cb_opts.cc = "bpf_cc_cubic",
+		.post_socket_cb = cc_cb,
+	};
 	struct bpf_cc_cubic *cc_cubic_skel;
 	struct bpf_link *link;
 
@@ -475,7 +505,7 @@  static void test_cc_cubic(void)
 		return;
 	}
 
-	do_test("bpf_cc_cubic", NULL);
+	do_test(&opts, NULL);
 
 	bpf_link__destroy(link);
 	bpf_cc_cubic__destroy(cc_cubic_skel);