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Fri, 12 Apr 2024 09:52:53 -0700 (PDT) Date: Fri, 12 Apr 2024 11:52:26 -0500 In-Reply-To: <20240412165230.2009746-1-jrife@google.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240412165230.2009746-1-jrife@google.com> X-Mailer: git-send-email 2.44.0.683.g7961c838ac-goog Message-ID: <20240412165230.2009746-6-jrife@google.com> Subject: [PATCH v2 bpf-next 5/6] selftests/bpf: Make sock configurable for each test case From: Jordan Rife To: bpf@vger.kernel.org Cc: Jordan Rife , linux-kselftest@vger.kernel.org, netdev@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Mykola Lysenko , Shuah Khan , Kui-Feng Lee , Artem Savkov , Dave Marchevsky , Menglong Dong , Daniel Xu , David Vernet , Daan De Meyer , Willem de Bruijn X-Patchwork-Delegate: bpf@iogearbox.net In order to reuse the same test code for both socket system calls (e.g. connect(), bind(), etc.) and kernel socket functions (e.g. kernel_connect(), kernel_bind(), etc.), this patch introduces the "ops" field to sock_addr_test. This field allows each test cases to configure the set of functions used in the test case to create, manipulate, and tear down a socket. Signed-off-by: Jordan Rife --- .../selftests/bpf/prog_tests/sock_addr.c | 137 ++++++++++++------ 1 file changed, 95 insertions(+), 42 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c index 92879b971a098..78bcc147f09c4 100644 --- a/tools/testing/selftests/bpf/prog_tests/sock_addr.c +++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c @@ -53,12 +53,63 @@ enum sock_addr_test_type { typedef void *(*load_fn)(int cgroup_fd); typedef void (*destroy_fn)(void *skel); +struct sock_ops { + int (*connect_to_addr)(const struct sockaddr_storage *addr, + socklen_t addrlen, int type); + int (*start_server)(int family, int type, const char *addr_str, + __u16 port, int timeout_ms); + int (*socket)(int famil, int type, int protocol); + int (*bind)(int fd, struct sockaddr *addr, socklen_t addrlen); + int (*getsockname)(int fd, struct sockaddr *addr, socklen_t *addrlen); + int (*getpeername)(int fd, struct sockaddr *addr, socklen_t *addrlen); + int (*sendmsg)(int fd, struct sockaddr *addr, socklen_t addrlen, + char *msg, int msglen); + int (*close)(int fd); +}; + +static int user_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen, + char *msg, int msglen) +{ + struct msghdr hdr; + struct iovec iov; + + memset(&iov, 0, sizeof(iov)); + iov.iov_base = msg; + iov.iov_len = msglen; + + memset(&hdr, 0, sizeof(hdr)); + hdr.msg_name = (void *)addr; + hdr.msg_namelen = addrlen; + hdr.msg_iov = &iov; + hdr.msg_iovlen = 1; + + return sendmsg(fd, &hdr, 0); +} + +static int user_bind(int fd, struct sockaddr *addr, socklen_t addrlen) +{ + return bind(fd, (const struct sockaddr *)addr, addrlen); +} + +struct sock_ops user_ops = { + .connect_to_addr = connect_to_addr, + .start_server = start_server, + .socket = socket, + .bind = user_bind, + .getsockname = getsockname, + .getpeername = getpeername, + .sendmsg = user_sendmsg, + .close = close, +}; + struct sock_addr_test { enum sock_addr_test_type type; const char *name; /* BPF prog properties */ load_fn loadfn; destroy_fn destroyfn; + /* Socket operations */ + struct sock_ops *ops; /* Socket properties */ int socket_family; int socket_type; @@ -112,6 +163,7 @@ static struct sock_addr_test tests[] = { "bind4: bind (stream)", bind4_prog_load, bind4_prog_destroy, + &user_ops, AF_INET, SOCK_STREAM, SERV4_IP, @@ -124,6 +176,7 @@ static struct sock_addr_test tests[] = { "bind4: bind (dgram)", bind4_prog_load, bind4_prog_destroy, + &user_ops, AF_INET, SOCK_DGRAM, SERV4_IP, @@ -136,6 +189,7 @@ static struct sock_addr_test tests[] = { "bind6: bind (stream)", bind6_prog_load, bind6_prog_destroy, + &user_ops, AF_INET6, SOCK_STREAM, SERV6_IP, @@ -148,6 +202,7 @@ static struct sock_addr_test tests[] = { "bind6: bind (dgram)", bind6_prog_load, bind6_prog_destroy, + &user_ops, AF_INET6, SOCK_DGRAM, SERV6_IP, @@ -162,6 +217,7 @@ static struct sock_addr_test tests[] = { "connect4: connect (stream)", connect4_prog_load, connect4_prog_destroy, + &user_ops, AF_INET, SOCK_STREAM, SERV4_IP, @@ -175,6 +231,7 @@ static struct sock_addr_test tests[] = { "connect4: connect (dgram)", connect4_prog_load, connect4_prog_destroy, + &user_ops, AF_INET, SOCK_DGRAM, SERV4_IP, @@ -188,6 +245,7 @@ static struct sock_addr_test tests[] = { "connect6: connect (stream)", connect6_prog_load, connect6_prog_destroy, + &user_ops, AF_INET6, SOCK_STREAM, SERV6_IP, @@ -201,6 +259,7 @@ static struct sock_addr_test tests[] = { "connect6: connect (dgram)", connect6_prog_load, connect6_prog_destroy, + &user_ops, AF_INET6, SOCK_DGRAM, SERV6_IP, @@ -214,6 +273,7 @@ static struct sock_addr_test tests[] = { "connect_unix: connect (stream)", connect_unix_prog_load, connect_unix_prog_destroy, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_ADDRESS, @@ -229,6 +289,7 @@ static struct sock_addr_test tests[] = { "sendmsg4: sendmsg (dgram)", sendmsg4_prog_load, sendmsg4_prog_destroy, + &user_ops, AF_INET, SOCK_DGRAM, SERV4_IP, @@ -242,6 +303,7 @@ static struct sock_addr_test tests[] = { "sendmsg6: sendmsg (dgram)", sendmsg6_prog_load, sendmsg6_prog_destroy, + &user_ops, AF_INET6, SOCK_DGRAM, SERV6_IP, @@ -255,6 +317,7 @@ static struct sock_addr_test tests[] = { "sendmsg_unix: sendmsg (dgram)", sendmsg_unix_prog_load, sendmsg_unix_prog_destroy, + &user_ops, AF_UNIX, SOCK_DGRAM, SERVUN_ADDRESS, @@ -270,6 +333,7 @@ static struct sock_addr_test tests[] = { "recvmsg4: recvfrom (dgram)", recvmsg4_prog_load, recvmsg4_prog_destroy, + &user_ops, AF_INET, SOCK_DGRAM, SERV4_REWRITE_IP, @@ -283,6 +347,7 @@ static struct sock_addr_test tests[] = { "recvmsg6: recvfrom (dgram)", recvmsg6_prog_load, recvmsg6_prog_destroy, + &user_ops, AF_INET6, SOCK_DGRAM, SERV6_REWRITE_IP, @@ -296,6 +361,7 @@ static struct sock_addr_test tests[] = { "recvmsg_unix: recvfrom (dgram)", recvmsg_unix_prog_load, recvmsg_unix_prog_destroy, + &user_ops, AF_UNIX, SOCK_DGRAM, SERVUN_REWRITE_ADDRESS, @@ -309,6 +375,7 @@ static struct sock_addr_test tests[] = { "recvmsg_unix: recvfrom (stream)", recvmsg_unix_prog_load, recvmsg_unix_prog_destroy, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_REWRITE_ADDRESS, @@ -324,6 +391,7 @@ static struct sock_addr_test tests[] = { "getsockname_unix", getsockname_unix_prog_load, getsockname_unix_prog_destroy, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_ADDRESS, @@ -339,6 +407,7 @@ static struct sock_addr_test tests[] = { "getpeername_unix", getpeername_unix_prog_load, getpeername_unix_prog_destroy, + &user_ops, AF_UNIX, SOCK_STREAM, SERVUN_ADDRESS, @@ -399,26 +468,15 @@ static int cmp_sock_addr(info_fn fn, int sock1, return cmp_addr(&addr1, len1, addr2, addr2_len, cmp_port); } -static int cmp_local_addr(int sock1, const struct sockaddr_storage *addr2, - socklen_t addr2_len, bool cmp_port) -{ - return cmp_sock_addr(getsockname, sock1, addr2, addr2_len, cmp_port); -} - -static int cmp_peer_addr(int sock1, const struct sockaddr_storage *addr2, - socklen_t addr2_len, bool cmp_port) -{ - return cmp_sock_addr(getpeername, sock1, addr2, addr2_len, cmp_port); -} - static void test_bind(struct sock_addr_test *test) { struct sockaddr_storage expected_addr; socklen_t expected_addr_len = sizeof(struct sockaddr_storage); int serv = -1, client = -1, err; - serv = start_server(test->socket_family, test->socket_type, - test->requested_addr, test->requested_port, 0); + serv = test->ops->start_server(test->socket_family, test->socket_type, + test->requested_addr, + test->requested_port, 0); if (!ASSERT_GE(serv, 0, "start_server")) goto cleanup; @@ -428,7 +486,8 @@ static void test_bind(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = cmp_local_addr(serv, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getsockname, serv, &expected_addr, + expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_local_addr")) goto cleanup; @@ -441,7 +500,7 @@ static void test_bind(struct sock_addr_test *test) if (client != -1) close(client); if (serv != -1) - close(serv); + test->ops->close(serv); } static void test_connect(struct sock_addr_test *test) @@ -462,7 +521,7 @@ static void test_connect(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - client = connect_to_addr(&addr, addr_len, test->socket_type); + client = test->ops->connect_to_addr(&addr, addr_len, test->socket_type); if (!ASSERT_GE(client, 0, "connect_to_addr")) goto cleanup; @@ -478,18 +537,21 @@ static void test_connect(struct sock_addr_test *test) goto cleanup; } - err = cmp_peer_addr(client, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getpeername, client, &expected_addr, + expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_peer_addr")) goto cleanup; if (test->expected_src_addr) { - err = cmp_local_addr(client, &expected_src_addr, expected_src_addr_len, false); + err = cmp_sock_addr(test->ops->getsockname, client, + &expected_src_addr, expected_src_addr_len, + false); if (!ASSERT_EQ(err, 0, "cmp_local_addr")) goto cleanup; } cleanup: if (client != -1) - close(client); + test->ops->close(client); if (serv != -1) close(serv); } @@ -499,8 +561,6 @@ static void test_xmsg(struct sock_addr_test *test) struct sockaddr_storage addr, src_addr; socklen_t addr_len = sizeof(struct sockaddr_storage), src_addr_len = sizeof(struct sockaddr_storage); - struct msghdr hdr; - struct iovec iov; char data = 'a'; int serv = -1, client = -1, err; @@ -513,7 +573,7 @@ static void test_xmsg(struct sock_addr_test *test) if (!ASSERT_GE(serv, 0, "start_server")) goto cleanup; - client = socket(test->socket_family, test->socket_type, 0); + client = test->ops->socket(test->socket_family, test->socket_type, 0); if (!ASSERT_GE(client, 0, "socket")) goto cleanup; @@ -523,7 +583,8 @@ static void test_xmsg(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = bind(client, (const struct sockaddr *) &src_addr, src_addr_len); + err = test->ops->bind(client, (struct sockaddr *) &src_addr, + src_addr_len); if (!ASSERT_OK(err, "bind")) goto cleanup; } @@ -534,17 +595,8 @@ static void test_xmsg(struct sock_addr_test *test) goto cleanup; if (test->socket_type == SOCK_DGRAM) { - memset(&iov, 0, sizeof(iov)); - iov.iov_base = &data; - iov.iov_len = sizeof(data); - - memset(&hdr, 0, sizeof(hdr)); - hdr.msg_name = (void *)&addr; - hdr.msg_namelen = addr_len; - hdr.msg_iov = &iov; - hdr.msg_iovlen = 1; - - err = sendmsg(client, &hdr, 0); + err = test->ops->sendmsg(client, (struct sockaddr *)&addr, + addr_len, &data, sizeof(data)); if (!ASSERT_EQ(err, sizeof(data), "sendmsg")) goto cleanup; } else { @@ -595,7 +647,7 @@ static void test_xmsg(struct sock_addr_test *test) cleanup: if (client != -1) - close(client); + test->ops->close(client); if (serv != -1) close(serv); } @@ -606,7 +658,7 @@ static void test_getsockname(struct sock_addr_test *test) socklen_t expected_addr_len = sizeof(struct sockaddr_storage); int serv = -1, err; - serv = start_server(test->socket_family, test->socket_type, + serv = test->ops->start_server(test->socket_family, test->socket_type, test->requested_addr, test->requested_port, 0); if (!ASSERT_GE(serv, 0, "start_server")) goto cleanup; @@ -617,13 +669,13 @@ static void test_getsockname(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = cmp_local_addr(serv, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getsockname, serv, &expected_addr, expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_local_addr")) goto cleanup; cleanup: if (serv != -1) - close(serv); + test->ops->close(serv); } static void test_getpeername(struct sock_addr_test *test) @@ -643,7 +695,7 @@ static void test_getpeername(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - client = connect_to_addr(&addr, addr_len, test->socket_type); + client = test->ops->connect_to_addr(&addr, addr_len, test->socket_type); if (!ASSERT_GE(client, 0, "connect_to_addr")) goto cleanup; @@ -652,13 +704,14 @@ static void test_getpeername(struct sock_addr_test *test) if (!ASSERT_EQ(err, 0, "make_sockaddr")) goto cleanup; - err = cmp_peer_addr(client, &expected_addr, expected_addr_len, true); + err = cmp_sock_addr(test->ops->getpeername, client, &expected_addr, + expected_addr_len, true); if (!ASSERT_EQ(err, 0, "cmp_peer_addr")) goto cleanup; cleanup: if (client != -1) - close(client); + test->ops->close(client); if (serv != -1) close(serv); }