diff mbox series

[bpf-next,v7,7/7] selftests/bpf: add tests for verdict skmsg to closed socket

Message ID 20231028100552.2444158-8-liujian56@huawei.com (mailing list archive)
State New, archived
Delegated to: BPF
Headers show
Series add BPF_F_PERMANENT flag for sockmap skmsg redirect | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers warning 3 maintainers not CCed: shuah@kernel.org mykolal@fb.com linux-kselftest@vger.kernel.org
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch warning WARNING: line length of 82 exceeds 80 columns WARNING: line length of 86 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
bpf/vmtest-bpf-next-PR fail PR summary
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Commit Message

liujian (CE) Oct. 28, 2023, 10:05 a.m. UTC 
Add four tests for verdict skmsg to closed socket in sockmap_basic.c.

Signed-off-by: Liu Jian <liujian56@huawei.com>
---
 .../selftests/bpf/prog_tests/sockmap_basic.c  | 42 +++++++++++++++----
 1 file changed, 34 insertions(+), 8 deletions(-)

Comments

Jakub Sitnicki Oct. 30, 2023, 9:04 a.m. UTC | #1 
On Sat, Oct 28, 2023 at 06:05 PM +08, Liu Jian wrote:
> Add four tests for verdict skmsg to closed socket in sockmap_basic.c.
>
> Signed-off-by: Liu Jian <liujian56@huawei.com>
> ---
>  .../selftests/bpf/prog_tests/sockmap_basic.c  | 42 +++++++++++++++----
>  1 file changed, 34 insertions(+), 8 deletions(-)
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
> index 75107762a86e..4d49129cdd6b 100644
> --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
> +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c

[...]

> @@ -651,15 +669,23 @@ void test_sockmap_basic(void)
>  	if (test__start_subtest("sockmap skb_verdict msg_f_peek"))
>  		test_sockmap_skb_verdict_peek();
>  	if (test__start_subtest("sockmap msg_verdict"))
> -		test_sockmap_msg_verdict(false, false, false);
> +		test_sockmap_msg_verdict(false, false, false, false);
>  	if (test__start_subtest("sockmap msg_verdict ingress"))
> -		test_sockmap_msg_verdict(true, false, false);
> +		test_sockmap_msg_verdict(true, false, false, false);
>  	if (test__start_subtest("sockmap msg_verdict permanent"))
> -		test_sockmap_msg_verdict(false, true, false);
> +		test_sockmap_msg_verdict(false, true, false, false);
>  	if (test__start_subtest("sockmap msg_verdict ingress permanent"))
> -		test_sockmap_msg_verdict(true, true, false);
> +		test_sockmap_msg_verdict(true, true, false, false);
>  	if (test__start_subtest("sockmap msg_verdict permanent self"))
> -		test_sockmap_msg_verdict(false, true, true);
> +		test_sockmap_msg_verdict(false, true, true, false);
>  	if (test__start_subtest("sockmap msg_verdict ingress permanent self"))
> -		test_sockmap_msg_verdict(true, true, true);
> +		test_sockmap_msg_verdict(true, true, true, false);
> +	if (test__start_subtest("sockmap msg_verdict permanent shutdown"))
> +		test_sockmap_msg_verdict(false, true, false, true);
> +	if (test__start_subtest("sockmap msg_verdict ingress permanent shutdown"))
> +		test_sockmap_msg_verdict(true, true, false, true);
> +	if (test__start_subtest("sockmap msg_verdict shutdown"))
> +		test_sockmap_msg_verdict(false, false, false, true);
> +	if (test__start_subtest("sockmap msg_verdict ingress shutdown"))
> +		test_sockmap_msg_verdict(true, false, false, true);
>  }

I appreciate the split up of test changes into commits. Thanks.

As you see, the args for test_sockmap_msg_verdict became quite cryptic.
I think having dedicated aliases for 'true' would make it more readable:

        const bool INGRESS = true;
        const bool PERMANENT = true;
        const bool TO_SELF = true;
        const bool TARGET_SHUTDOWN = true;

Then invocations as:

        test_sockmap_msg_verdict(true, false, false, true);

become:

        test_sockmap_msg_verdict(INGRESS, !PERMANENT, !TO_SELF, TARGET_SHUTDOWN);
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
index 75107762a86e..4d49129cdd6b 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
@@ -525,9 +525,10 @@  static void test_sockmap_skb_verdict_peek(void)
 	test_sockmap_pass_prog__destroy(pass);
 }
 
-static void test_sockmap_msg_verdict(bool is_ingress, bool is_permanent, bool is_self)
+static void test_sockmap_msg_verdict(bool is_ingress, bool is_permanent, bool is_self,
+				     bool target_shutdown)
 {
-	int key, sent, recvd, recv_fd;
+	int key, sent, recvd, recv_fd, target_fd;
 	int err, map, verdict, s, c0, c1, p0, p1;
 	struct test_sockmap_msg_verdict *skel;
 	char buf[256] = "0123456789";
@@ -571,18 +572,22 @@  static void test_sockmap_msg_verdict(bool is_ingress, bool is_permanent, bool is
 		skel->bss->skmsg_redir_flags = BPF_F_INGRESS;
 		if (is_self) {
 			skel->bss->skmsg_redir_key = 0;
+			target_fd = p1;
 			recv_fd = p1;
 		} else {
 			skel->bss->skmsg_redir_key = 1;
+			target_fd = c1;
 			recv_fd = c1;
 		}
 	} else {
 		skel->bss->skmsg_redir_flags = 0;
 		if (is_self) {
 			skel->bss->skmsg_redir_key = 0;
+			target_fd = p1;
 			recv_fd = c1;
 		} else {
 			skel->bss->skmsg_redir_key = 2;
+			target_fd = p0;
 			recv_fd = c0;
 		}
 	}
@@ -595,6 +600,19 @@  static void test_sockmap_msg_verdict(bool is_ingress, bool is_permanent, bool is
 	recvd = recv_timeout(recv_fd, &buf, sizeof(buf), SOCK_NONBLOCK, IO_TIMEOUT_SEC);
 	ASSERT_EQ(recvd, sizeof(buf), "recv_timeout(recv_fd)");
 
+	if (target_shutdown) {
+		signal(SIGPIPE, SIG_IGN);
+		close(target_fd);
+		sent = send(p1, &buf, sizeof(buf), 0);
+		if (is_permanent) {
+			ASSERT_EQ(sent, -1, "xsend(p1)");
+			ASSERT_EQ(errno, EPIPE, "xsend(p1)");
+		} else {
+			ASSERT_EQ(sent, sizeof(buf), "xsend(p1)");
+		}
+		goto out_close;
+	}
+
 	sent = xsend(p1, &buf, sizeof(buf), 0);
 	ASSERT_EQ(sent, sizeof(buf), "xsend(p1)");
 	recvd = recv_timeout(recv_fd, &buf, sizeof(buf), SOCK_NONBLOCK, IO_TIMEOUT_SEC);
@@ -651,15 +669,23 @@  void test_sockmap_basic(void)
 	if (test__start_subtest("sockmap skb_verdict msg_f_peek"))
 		test_sockmap_skb_verdict_peek();
 	if (test__start_subtest("sockmap msg_verdict"))
-		test_sockmap_msg_verdict(false, false, false);
+		test_sockmap_msg_verdict(false, false, false, false);
 	if (test__start_subtest("sockmap msg_verdict ingress"))
-		test_sockmap_msg_verdict(true, false, false);
+		test_sockmap_msg_verdict(true, false, false, false);
 	if (test__start_subtest("sockmap msg_verdict permanent"))
-		test_sockmap_msg_verdict(false, true, false);
+		test_sockmap_msg_verdict(false, true, false, false);
 	if (test__start_subtest("sockmap msg_verdict ingress permanent"))
-		test_sockmap_msg_verdict(true, true, false);
+		test_sockmap_msg_verdict(true, true, false, false);
 	if (test__start_subtest("sockmap msg_verdict permanent self"))
-		test_sockmap_msg_verdict(false, true, true);
+		test_sockmap_msg_verdict(false, true, true, false);
 	if (test__start_subtest("sockmap msg_verdict ingress permanent self"))
-		test_sockmap_msg_verdict(true, true, true);
+		test_sockmap_msg_verdict(true, true, true, false);
+	if (test__start_subtest("sockmap msg_verdict permanent shutdown"))
+		test_sockmap_msg_verdict(false, true, false, true);
+	if (test__start_subtest("sockmap msg_verdict ingress permanent shutdown"))
+		test_sockmap_msg_verdict(true, true, false, true);
+	if (test__start_subtest("sockmap msg_verdict shutdown"))
+		test_sockmap_msg_verdict(false, false, false, true);
+	if (test__start_subtest("sockmap msg_verdict ingress shutdown"))
+		test_sockmap_msg_verdict(true, false, false, true);
 }