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From: Jordan Rife <jrife@google.com>
To: bpf@vger.kernel.org
Cc: Jordan Rife <jrife@google.com>,
	Alexei Starovoitov <ast@kernel.org>,
	 Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	 Martin KaFai Lau <martin.lau@linux.dev>,
	Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
	 Yonghong Song <yonghong.song@linux.dev>,
	John Fastabend <john.fastabend@gmail.com>,
	 KP Singh <kpsingh@kernel.org>,
	Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>,
	 Jiri Olsa <jolsa@kernel.org>, Mykola Lysenko <mykolal@fb.com>,
	Shuah Khan <shuah@kernel.org>,
	 Geliang Tang <tanggeliang@kylinos.cn>,
	Daan De Meyer <daan.j.demeyer@gmail.com>,
	 Shung-Hsi Yu <shung-hsi.yu@suse.com>,
	linux-kselftest@vger.kernel.org
Subject: [PATCH v1 bpf-next 08/17] selftests/bpf: Migrate sendmsg6 v4 mapped address tests
Date: Fri, 10 May 2024 14:02:25 -0500	[thread overview]
Message-ID: <20240510190246.3247730-9-jrife@google.com> (raw)
In-Reply-To: <20240510190246.3247730-1-jrife@google.com>

Migrate test case from bpf/test_sock_addr.c ensuring that sendmsg
returns -ENOTSUPP when sending to an IPv4-mapped IPv6 address to
prog_tests/sock_addr.c.

Signed-off-by: Jordan Rife <jrife@google.com>
---
 .../selftests/bpf/prog_tests/sock_addr.c      | 17 +++++++++++++
 .../selftests/bpf/progs/sendmsg6_prog.c       | 25 +++++++++++++++++++
 tools/testing/selftests/bpf/test_sock_addr.c  | 20 ---------------
 3 files changed, 42 insertions(+), 20 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c
index 634f7a31b35db..f096203171b17 100644
--- a/tools/testing/selftests/bpf/prog_tests/sock_addr.c
+++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c
@@ -447,6 +447,7 @@ BPF_SKEL_FUNCS(sendmsg4_prog, sendmsg_v4_deny_prog);
 BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_prog);
 BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_deny_prog);
 BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_preserve_dst_prog);
+BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_v4mapped_prog);
 BPF_SKEL_FUNCS(sendmsg_unix_prog, sendmsg_unix_prog);
 BPF_SKEL_FUNCS(recvmsg4_prog, recvmsg4_prog);
 BPF_SKEL_FUNCS(recvmsg6_prog, recvmsg6_prog);
@@ -832,6 +833,22 @@ static struct sock_addr_test tests[] = {
 		SRC6_REWRITE_IP,
 		SYSCALL_EPERM,
 	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sendmsg IPv4-mapped IPv6 (dgram)",
+		sendmsg_v6_v4mapped_prog_load,
+		sendmsg_v6_v4mapped_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_ENOTSUPP,
+	},
 	{
 		SOCK_ADDR_TEST_SENDMSG,
 		"sendmsg_unix: sendmsg (dgram)",
diff --git a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c
index 0c1825cb994d6..7611d9e17dd16 100644
--- a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c
+++ b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c
@@ -20,6 +20,11 @@
 #define DST_REWRITE_IP6_2	0
 #define DST_REWRITE_IP6_3	1
 
+#define DST_REWRITE_IP6_V4_MAPPED_0	0
+#define DST_REWRITE_IP6_V4_MAPPED_1	0
+#define DST_REWRITE_IP6_V4_MAPPED_2	0x0000FFFF
+#define DST_REWRITE_IP6_V4_MAPPED_3	0xc0a80004 // 192.168.0.4
+
 #define DST_REWRITE_PORT6	6666
 
 SEC("cgroup/sendmsg6")
@@ -59,6 +64,26 @@ int sendmsg_v6_prog(struct bpf_sock_addr *ctx)
 	return 1;
 }
 
+SEC("cgroup/sendmsg6")
+int sendmsg_v6_v4mapped_prog(struct bpf_sock_addr *ctx)
+{
+	/* Rewrite source. */
+	ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0);
+	ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1);
+	ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2);
+	ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
+
+	/* Rewrite destination. */
+	ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_0);
+	ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_1);
+	ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_2);
+	ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_3);
+
+	ctx->user_port = bpf_htons(DST_REWRITE_PORT6);
+
+	return 1;
+}
+
 SEC("cgroup/sendmsg6")
 int sendmsg_v6_preserve_dst_prog(struct bpf_sock_addr *ctx)
 {
diff --git a/tools/testing/selftests/bpf/test_sock_addr.c b/tools/testing/selftests/bpf/test_sock_addr.c
index 91d88358090eb..4ead113753f81 100644
--- a/tools/testing/selftests/bpf/test_sock_addr.c
+++ b/tools/testing/selftests/bpf/test_sock_addr.c
@@ -94,7 +94,6 @@ static int connect4_prog_load(const struct sock_addr_test *test);
 static int connect6_prog_load(const struct sock_addr_test *test);
 static int sendmsg4_rw_asm_prog_load(const struct sock_addr_test *test);
 static int sendmsg6_rw_asm_prog_load(const struct sock_addr_test *test);
-static int sendmsg6_rw_v4mapped_prog_load(const struct sock_addr_test *test);
 static int sendmsg6_rw_wildcard_prog_load(const struct sock_addr_test *test);
 
 static struct sock_addr_test tests[] = {
@@ -299,20 +298,6 @@ static struct sock_addr_test tests[] = {
 		SRC6_REWRITE_IP,
 		SUCCESS,
 	},
-	{
-		"sendmsg6: IPv4-mapped IPv6",
-		sendmsg6_rw_v4mapped_prog_load,
-		BPF_CGROUP_UDP6_SENDMSG,
-		BPF_CGROUP_UDP6_SENDMSG,
-		AF_INET6,
-		SOCK_DGRAM,
-		SERV6_IP,
-		SERV6_PORT,
-		SERV6_REWRITE_IP,
-		SERV6_REWRITE_PORT,
-		SRC6_REWRITE_IP,
-		SYSCALL_ENOTSUPP,
-	},
 	{
 		"sendmsg6: set dst IP = [::] (BSD'ism)",
 		sendmsg6_rw_wildcard_prog_load,
@@ -512,11 +497,6 @@ static int sendmsg6_rw_asm_prog_load(const struct sock_addr_test *test)
 	return sendmsg6_rw_dst_asm_prog_load(test, SERV6_REWRITE_IP);
 }
 
-static int sendmsg6_rw_v4mapped_prog_load(const struct sock_addr_test *test)
-{
-	return sendmsg6_rw_dst_asm_prog_load(test, SERV6_V4MAPPED_IP);
-}
-
 static int sendmsg6_rw_wildcard_prog_load(const struct sock_addr_test *test)
 {
 	return sendmsg6_rw_dst_asm_prog_load(test, WILDCARD6_IP);
-- 
2.45.0.118.g7fe29c98d7-goog


  parent reply	other threads:[~2024-05-10 19:03 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-10 19:02 [PATCH v1 bpf-next 00/17] Retire progs/test_sock_addr.c Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 01/17] selftests/bpf: Migrate recvmsg* return code tests to verifier_sock_addr.c Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 02/17] selftests/bpf: Use program name for skel load/destroy functions Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 03/17] selftests/bpf: Handle LOAD_REJECT test cases Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 04/17] selftests/bpf: Handle ATTACH_REJECT " Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 05/17] selftests/bpf: Handle SYSCALL_EPERM and SYSCALL_ENOTSUPP " Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 06/17] selftests/bpf: Migrate WILDCARD_IP test Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 07/17] selftests/bpf: Migrate sendmsg deny test cases Jordan Rife
2024-05-10 19:02 ` Jordan Rife [this message]
2024-05-10 19:02 ` [PATCH v1 bpf-next 09/17] selftests/bpf: Migrate wildcard destination rewrite test Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 10/17] selftests/bpf: Migrate expected_attach_type tests Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 11/17] selftests/bpf: Migrate ATTACH_REJECT test cases Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 12/17] selftests/bpf: Remove redundant sendmsg " Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 13/17] selftests/bpf: Retire test_sock_addr.(c|sh) Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 14/17] selftests/bpf: Expand sockaddr program return value tests Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 15/17] sefltests/bpf: Expand sockaddr hook deny tests Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 16/17] selftests/bpf: Expand getsockname and getpeername tests Jordan Rife
2024-05-10 19:02 ` [PATCH v1 bpf-next 17/17] selftests/bpf: Expand ATTACH_REJECT tests Jordan Rife
2024-05-10 22:05 ` [PATCH v1 bpf-next 00/17] Retire progs/test_sock_addr.c Andrii Nakryiko
2024-05-10 22:12   ` Jordan Rife
2024-05-10 22:32     ` Andrii Nakryiko
2024-05-13  0:20 ` patchwork-bot+netdevbpf

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