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Fri, 10 May 2024 12:02:53 -0700 (PDT) Date: Fri, 10 May 2024 14:02:20 -0500 In-Reply-To: <20240510190246.3247730-1-jrife@google.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240510190246.3247730-1-jrife@google.com> X-Mailer: git-send-email 2.45.0.118.g7fe29c98d7-goog Message-ID: <20240510190246.3247730-4-jrife@google.com> Subject: [PATCH v1 bpf-next 03/17] selftests/bpf: Handle LOAD_REJECT test cases From: Jordan Rife To: bpf@vger.kernel.org Cc: Jordan Rife , 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 , Geliang Tang , Daan De Meyer , Shung-Hsi Yu , linux-kselftest@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net In preparation to move test cases from bpf/test_sock_addr.c that expect LOAD_REJECT, this patch adds expected_attach_type and extends load_fn to accept an expected attach type and a flag indicating whether or not rejection is expected. Signed-off-by: Jordan Rife --- .../selftests/bpf/prog_tests/sock_addr.c | 103 +++++++++++++++++- 1 file changed, 98 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c index 039c3e38e1bc2..3033641fd7567 100644 --- a/tools/testing/selftests/bpf/prog_tests/sock_addr.c +++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c @@ -52,7 +52,9 @@ enum sock_addr_test_type { SOCK_ADDR_TEST_GETPEERNAME, }; -typedef void *(*load_fn)(int cgroup_fd); +typedef void *(*load_fn)(int cgroup_fd, + enum bpf_attach_type attach_type, + bool expect_reject); typedef void (*destroy_fn)(void *skel); static int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len, @@ -343,6 +345,7 @@ struct sock_addr_test { /* BPF prog properties */ load_fn loadfn; destroy_fn destroyfn; + enum bpf_attach_type attach_type; /* Socket operations */ struct sock_ops *ops; /* Socket properties */ @@ -354,15 +357,34 @@ struct sock_addr_test { const char *expected_addr; unsigned short expected_port; const char *expected_src_addr; + /* Expected test result */ + enum { + LOAD_REJECT, + ATTACH_REJECT, + SYSCALL_EPERM, + SYSCALL_ENOTSUPP, + SUCCESS, + } expected_result; }; #define BPF_SKEL_FUNCS(skel_name, prog_name) \ -static void *prog_name##_load(int cgroup_fd) \ +static void *prog_name##_load(int cgroup_fd, \ + enum bpf_attach_type attach_type, \ + bool expect_reject) \ { \ - struct skel_name *skel; \ - skel = skel_name##__open_and_load(); \ + struct skel_name *skel = skel_name##__open(); \ if (!ASSERT_OK_PTR(skel, "skel_open")) \ goto cleanup; \ + if (!ASSERT_OK(bpf_program__set_expected_attach_type(skel->progs.prog_name, \ + attach_type), \ + "set_expected_attach_type")) \ + goto cleanup; \ + if (skel_name##__load(skel)) { \ + ASSERT_TRUE(expect_reject, "unexpected rejection"); \ + goto cleanup; \ + } \ + if (!ASSERT_FALSE(expect_reject, "expected rejection")) \ + goto cleanup; \ skel->links.prog_name = bpf_program__attach_cgroup( \ skel->progs.prog_name, cgroup_fd); \ if (!ASSERT_OK_PTR(skel->links.prog_name, "prog_attach")) \ @@ -398,6 +420,7 @@ static struct sock_addr_test tests[] = { "bind4: bind (stream)", bind_v4_prog_load, bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, &user_ops, AF_INET, SOCK_STREAM, @@ -406,12 +429,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, NULL, + SUCCESS, }, { SOCK_ADDR_TEST_BIND, "bind4: bind (dgram)", bind_v4_prog_load, bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, &user_ops, AF_INET, SOCK_DGRAM, @@ -420,12 +445,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, NULL, + SUCCESS, }, { SOCK_ADDR_TEST_BIND, "bind6: bind (stream)", bind_v6_prog_load, bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, &user_ops, AF_INET6, SOCK_STREAM, @@ -434,12 +461,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, NULL, + SUCCESS, }, { SOCK_ADDR_TEST_BIND, "bind6: bind (dgram)", bind_v6_prog_load, bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, &user_ops, AF_INET6, SOCK_DGRAM, @@ -448,6 +477,7 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, NULL, + SUCCESS, }, /* bind - kernel calls */ @@ -456,6 +486,7 @@ static struct sock_addr_test tests[] = { "bind4: kernel_bind (stream)", bind_v4_prog_load, bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, &kern_ops_sock_sendmsg, AF_INET, SOCK_STREAM, @@ -463,12 +494,15 @@ static struct sock_addr_test tests[] = { SERV4_PORT, SERV4_REWRITE_IP, SERV4_REWRITE_PORT, + NULL, + SUCCESS, }, { SOCK_ADDR_TEST_BIND, "bind4: kernel_bind (dgram)", bind_v4_prog_load, bind_v4_prog_destroy, + BPF_CGROUP_INET4_BIND, &kern_ops_sock_sendmsg, AF_INET, SOCK_DGRAM, @@ -476,12 +510,15 @@ static struct sock_addr_test tests[] = { SERV4_PORT, SERV4_REWRITE_IP, SERV4_REWRITE_PORT, + NULL, + SUCCESS, }, { SOCK_ADDR_TEST_BIND, "bind6: kernel_bind (stream)", bind_v6_prog_load, bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, &kern_ops_sock_sendmsg, AF_INET6, SOCK_STREAM, @@ -489,12 +526,15 @@ static struct sock_addr_test tests[] = { SERV6_PORT, SERV6_REWRITE_IP, SERV6_REWRITE_PORT, + NULL, + SUCCESS, }, { SOCK_ADDR_TEST_BIND, "bind6: kernel_bind (dgram)", bind_v6_prog_load, bind_v6_prog_destroy, + BPF_CGROUP_INET6_BIND, &kern_ops_sock_sendmsg, AF_INET6, SOCK_DGRAM, @@ -502,6 +542,8 @@ static struct sock_addr_test tests[] = { SERV6_PORT, SERV6_REWRITE_IP, SERV6_REWRITE_PORT, + NULL, + SUCCESS, }, /* connect - system calls */ @@ -510,6 +552,7 @@ static struct sock_addr_test tests[] = { "connect4: connect (stream)", connect_v4_prog_load, connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, &user_ops, AF_INET, SOCK_STREAM, @@ -518,12 +561,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect4: connect (dgram)", connect_v4_prog_load, connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, &user_ops, AF_INET, SOCK_DGRAM, @@ -532,12 +577,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect6: connect (stream)", connect_v6_prog_load, connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, &user_ops, AF_INET6, SOCK_STREAM, @@ -546,12 +593,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect6: connect (dgram)", connect_v6_prog_load, connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, &user_ops, AF_INET6, SOCK_DGRAM, @@ -560,12 +609,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect_unix: connect (stream)", connect_unix_prog_load, connect_unix_prog_destroy, + BPF_CGROUP_UNIX_CONNECT, &user_ops, AF_UNIX, SOCK_STREAM, @@ -574,6 +625,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, /* connect - kernel calls */ @@ -582,6 +634,7 @@ static struct sock_addr_test tests[] = { "connect4: kernel_connect (stream)", connect_v4_prog_load, connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, &kern_ops_sock_sendmsg, AF_INET, SOCK_STREAM, @@ -590,12 +643,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect4: kernel_connect (dgram)", connect_v4_prog_load, connect_v4_prog_destroy, + BPF_CGROUP_INET4_CONNECT, &kern_ops_sock_sendmsg, AF_INET, SOCK_DGRAM, @@ -604,12 +659,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect6: kernel_connect (stream)", connect_v6_prog_load, connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, &kern_ops_sock_sendmsg, AF_INET6, SOCK_STREAM, @@ -618,12 +675,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect6: kernel_connect (dgram)", connect_v6_prog_load, connect_v6_prog_destroy, + BPF_CGROUP_INET6_CONNECT, &kern_ops_sock_sendmsg, AF_INET6, SOCK_DGRAM, @@ -632,12 +691,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_CONNECT, "connect_unix: kernel_connect (dgram)", connect_unix_prog_load, connect_unix_prog_destroy, + BPF_CGROUP_UNIX_CONNECT, &kern_ops_sock_sendmsg, AF_UNIX, SOCK_STREAM, @@ -646,6 +707,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, /* sendmsg - system calls */ @@ -654,6 +716,7 @@ static struct sock_addr_test tests[] = { "sendmsg4: sendmsg (dgram)", sendmsg_v4_prog_load, sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, &user_ops, AF_INET, SOCK_DGRAM, @@ -662,12 +725,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, "sendmsg6: sendmsg (dgram)", sendmsg_v6_prog_load, sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, &user_ops, AF_INET6, SOCK_DGRAM, @@ -676,12 +741,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, "sendmsg_unix: sendmsg (dgram)", sendmsg_unix_prog_load, sendmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, &user_ops, AF_UNIX, SOCK_DGRAM, @@ -690,6 +757,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, /* sendmsg - kernel calls (sock_sendmsg) */ @@ -698,6 +766,7 @@ static struct sock_addr_test tests[] = { "sendmsg4: sock_sendmsg (dgram)", sendmsg_v4_prog_load, sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, &kern_ops_sock_sendmsg, AF_INET, SOCK_DGRAM, @@ -706,12 +775,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, "sendmsg6: sock_sendmsg (dgram)", sendmsg_v6_prog_load, sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, &kern_ops_sock_sendmsg, AF_INET6, SOCK_DGRAM, @@ -720,12 +791,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, "sendmsg_unix: sock_sendmsg (dgram)", sendmsg_unix_prog_load, sendmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, &kern_ops_sock_sendmsg, AF_UNIX, SOCK_DGRAM, @@ -734,6 +807,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, /* sendmsg - kernel calls (kernel_sendmsg) */ @@ -742,6 +816,7 @@ static struct sock_addr_test tests[] = { "sendmsg4: kernel_sendmsg (dgram)", sendmsg_v4_prog_load, sendmsg_v4_prog_destroy, + BPF_CGROUP_UDP4_SENDMSG, &kern_ops_kernel_sendmsg, AF_INET, SOCK_DGRAM, @@ -750,12 +825,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SRC4_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, "sendmsg6: kernel_sendmsg (dgram)", sendmsg_v6_prog_load, sendmsg_v6_prog_destroy, + BPF_CGROUP_UDP6_SENDMSG, &kern_ops_kernel_sendmsg, AF_INET6, SOCK_DGRAM, @@ -764,12 +841,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SRC6_REWRITE_IP, + SUCCESS, }, { SOCK_ADDR_TEST_SENDMSG, "sendmsg_unix: sock_sendmsg (dgram)", sendmsg_unix_prog_load, sendmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_SENDMSG, &kern_ops_kernel_sendmsg, AF_UNIX, SOCK_DGRAM, @@ -778,6 +857,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, /* recvmsg - system calls */ @@ -786,6 +866,7 @@ static struct sock_addr_test tests[] = { "recvmsg4: recvfrom (dgram)", recvmsg4_prog_load, recvmsg4_prog_destroy, + BPF_CGROUP_UDP4_RECVMSG, &user_ops, AF_INET, SOCK_DGRAM, @@ -794,12 +875,14 @@ static struct sock_addr_test tests[] = { SERV4_REWRITE_IP, SERV4_REWRITE_PORT, SERV4_IP, + SUCCESS, }, { SOCK_ADDR_TEST_RECVMSG, "recvmsg6: recvfrom (dgram)", recvmsg6_prog_load, recvmsg6_prog_destroy, + BPF_CGROUP_UDP6_RECVMSG, &user_ops, AF_INET6, SOCK_DGRAM, @@ -808,12 +891,14 @@ static struct sock_addr_test tests[] = { SERV6_REWRITE_IP, SERV6_REWRITE_PORT, SERV6_IP, + SUCCESS, }, { SOCK_ADDR_TEST_RECVMSG, "recvmsg_unix: recvfrom (dgram)", recvmsg_unix_prog_load, recvmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_RECVMSG, &user_ops, AF_UNIX, SOCK_DGRAM, @@ -822,12 +907,14 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, SERVUN_ADDRESS, + SUCCESS, }, { SOCK_ADDR_TEST_RECVMSG, "recvmsg_unix: recvfrom (stream)", recvmsg_unix_prog_load, recvmsg_unix_prog_destroy, + BPF_CGROUP_UNIX_RECVMSG, &user_ops, AF_UNIX, SOCK_STREAM, @@ -836,6 +923,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, SERVUN_ADDRESS, + SUCCESS, }, /* getsockname - system calls */ @@ -844,6 +932,7 @@ static struct sock_addr_test tests[] = { "getsockname_unix", getsockname_unix_prog_load, getsockname_unix_prog_destroy, + BPF_CGROUP_UNIX_GETSOCKNAME, &user_ops, AF_UNIX, SOCK_STREAM, @@ -852,6 +941,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, /* getpeername - system calls */ @@ -860,6 +950,7 @@ static struct sock_addr_test tests[] = { "getpeername_unix", getpeername_unix_prog_load, getpeername_unix_prog_destroy, + BPF_CGROUP_UNIX_GETPEERNAME, &user_ops, AF_UNIX, SOCK_STREAM, @@ -868,6 +959,7 @@ static struct sock_addr_test tests[] = { SERVUN_REWRITE_ADDRESS, 0, NULL, + SUCCESS, }, }; @@ -1249,7 +1341,8 @@ void test_sock_addr(void) if (!test__start_subtest(test->name)) continue; - skel = test->loadfn(cgroup_fd); + skel = test->loadfn(cgroup_fd, test->attach_type, + test->expected_result == LOAD_REJECT); if (!skel) continue;