selftests/bpf: Migrate *_POST_BIND test cases to prog_tests

Move all BPF_CGROUP_INET6_POST_BIND and BPF_CGROUP_INET4_POST_BIND test
cases to a new prog_test, prog_tests/sock_post_bind.c, except for
LOAD_REJECT test cases.

Signed-off-by: Jordan Rife <jrife@google.com>
Link: https://lore.kernel.org/r/20241022152913.574836-2-jrife@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

diff --git a/tools/testing/selftests/bpf/prog_tests/sock_post_bind.c b/tools/testing/selftests/bpf/prog_tests/sock_post_bind.c
new file mode 100644 (file)
index 0000000..788135c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_post_bind.c
@@ -0,0 +1,426 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+#define TEST_NS "sock_post_bind"
+
+static char bpf_log_buf[4096];
+
+static struct sock_post_bind_test {
+       const char                      *descr;
+       /* BPF prog properties */
+       const struct bpf_insn           insns[64];
+       enum bpf_attach_type            attach_type;
+       enum bpf_attach_type            expected_attach_type;
+       /* Socket properties */
+       int                             domain;
+       int                             type;
+       /* Endpoint to bind() to */
+       const char *ip;
+       unsigned short port;
+       unsigned short port_retry;
+
+       /* Expected test result */
+       enum {
+               ATTACH_REJECT,
+               BIND_REJECT,
+               SUCCESS,
+               RETRY_SUCCESS,
+               RETRY_REJECT
+       } result;
+} tests[] = {
+       {
+               .descr = "attach type mismatch bind4 vs bind6",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .result = ATTACH_REJECT,
+       },
+       {
+               .descr = "attach type mismatch bind6 vs bind4",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .result = ATTACH_REJECT,
+       },
+       {
+               .descr = "attach type mismatch default vs bind4",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = 0,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .result = ATTACH_REJECT,
+       },
+       {
+               .descr = "attach type mismatch bind6 vs sock_create",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+               .result = ATTACH_REJECT,
+       },
+       {
+               .descr = "bind4 reject all",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .domain = AF_INET,
+               .type = SOCK_STREAM,
+               .ip = "0.0.0.0",
+               .result = BIND_REJECT,
+       },
+       {
+               .descr = "bind6 reject all",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .domain = AF_INET6,
+               .type = SOCK_STREAM,
+               .ip = "::",
+               .result = BIND_REJECT,
+       },
+       {
+               .descr = "bind6 deny specific IP & port",
+               .insns = {
+                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+                       /* if (ip == expected && port == expected) */
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_ip6[3])),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+                                   __bpf_constant_ntohl(0x00000001), 4),
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_port)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x2001, 2),
+
+                       /* return DENY; */
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_JMP_A(1),
+
+                       /* else return ALLOW; */
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .domain = AF_INET6,
+               .type = SOCK_STREAM,
+               .ip = "::1",
+               .port = 8193,
+               .result = BIND_REJECT,
+       },
+       {
+               .descr = "bind4 allow specific IP & port",
+               .insns = {
+                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+                       /* if (ip == expected && port == expected) */
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_ip4)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+                                   __bpf_constant_ntohl(0x7F000001), 4),
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_port)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
+
+                       /* return ALLOW; */
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_JMP_A(1),
+
+                       /* else return DENY; */
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .domain = AF_INET,
+               .type = SOCK_STREAM,
+               .ip = "127.0.0.1",
+               .port = 4098,
+               .result = SUCCESS,
+       },
+       {
+               .descr = "bind4 deny specific IP & port of TCP, and retry",
+               .insns = {
+                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+                       /* if (ip == expected && port == expected) */
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_ip4)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+                                   __bpf_constant_ntohl(0x7F000001), 4),
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_port)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
+
+                       /* return DENY; */
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_JMP_A(1),
+
+                       /* else return ALLOW; */
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .domain = AF_INET,
+               .type = SOCK_STREAM,
+               .ip = "127.0.0.1",
+               .port = 4098,
+               .port_retry = 5000,
+               .result = RETRY_SUCCESS,
+       },
+       {
+               .descr = "bind4 deny specific IP & port of UDP, and retry",
+               .insns = {
+                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+                       /* if (ip == expected && port == expected) */
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_ip4)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+                                   __bpf_constant_ntohl(0x7F000001), 4),
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_port)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
+
+                       /* return DENY; */
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_JMP_A(1),
+
+                       /* else return ALLOW; */
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .domain = AF_INET,
+               .type = SOCK_DGRAM,
+               .ip = "127.0.0.1",
+               .port = 4098,
+               .port_retry = 5000,
+               .result = RETRY_SUCCESS,
+       },
+       {
+               .descr = "bind6 deny specific IP & port, and retry",
+               .insns = {
+                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+                       /* if (ip == expected && port == expected) */
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_ip6[3])),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+                                   __bpf_constant_ntohl(0x00000001), 4),
+                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+                                   offsetof(struct bpf_sock, src_port)),
+                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x2001, 2),
+
+                       /* return DENY; */
+                       BPF_MOV64_IMM(BPF_REG_0, 0),
+                       BPF_JMP_A(1),
+
+                       /* else return ALLOW; */
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .domain = AF_INET6,
+               .type = SOCK_STREAM,
+               .ip = "::1",
+               .port = 8193,
+               .port_retry = 9000,
+               .result = RETRY_SUCCESS,
+       },
+       {
+               .descr = "bind4 allow all",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .attach_type = BPF_CGROUP_INET4_POST_BIND,
+               .domain = AF_INET,
+               .type = SOCK_STREAM,
+               .ip = "0.0.0.0",
+               .result = SUCCESS,
+       },
+       {
+               .descr = "bind6 allow all",
+               .insns = {
+                       BPF_MOV64_IMM(BPF_REG_0, 1),
+                       BPF_EXIT_INSN(),
+               },
+               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .attach_type = BPF_CGROUP_INET6_POST_BIND,
+               .domain = AF_INET6,
+               .type = SOCK_STREAM,
+               .ip = "::",
+               .result = SUCCESS,
+       },
+};
+
+static int load_prog(const struct bpf_insn *insns,
+                    enum bpf_attach_type expected_attach_type)
+{
+       LIBBPF_OPTS(bpf_prog_load_opts, opts,
+                   .expected_attach_type = expected_attach_type,
+                   .log_level = 2,
+                   .log_buf = bpf_log_buf,
+                   .log_size = sizeof(bpf_log_buf),
+       );
+       int fd, insns_cnt = 0;
+
+       for (;
+            insns[insns_cnt].code != (BPF_JMP | BPF_EXIT);
+            insns_cnt++) {
+       }
+       insns_cnt++;
+
+       fd = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCK, NULL, "GPL", insns,
+                          insns_cnt, &opts);
+       if (fd < 0)
+               fprintf(stderr, "%s\n", bpf_log_buf);
+
+       return fd;
+}
+
+static int bind_sock(int domain, int type, const char *ip,
+                    unsigned short port, unsigned short port_retry)
+{
+       struct sockaddr_storage addr;
+       struct sockaddr_in6 *addr6;
+       struct sockaddr_in *addr4;
+       int sockfd = -1;
+       socklen_t len;
+       int res = SUCCESS;
+
+       sockfd = socket(domain, type, 0);
+       if (sockfd < 0)
+               goto err;
+
+       memset(&addr, 0, sizeof(addr));
+
+       if (domain == AF_INET) {
+               len = sizeof(struct sockaddr_in);
+               addr4 = (struct sockaddr_in *)&addr;
+               addr4->sin_family = domain;
+               addr4->sin_port = htons(port);
+               if (inet_pton(domain, ip, (void *)&addr4->sin_addr) != 1)
+                       goto err;
+       } else if (domain == AF_INET6) {
+               len = sizeof(struct sockaddr_in6);
+               addr6 = (struct sockaddr_in6 *)&addr;
+               addr6->sin6_family = domain;
+               addr6->sin6_port = htons(port);
+               if (inet_pton(domain, ip, (void *)&addr6->sin6_addr) != 1)
+                       goto err;
+       } else {
+               goto err;
+       }
+
+       if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
+               /* sys_bind() may fail for different reasons, errno has to be
+                * checked to confirm that BPF program rejected it.
+                */
+               if (errno != EPERM)
+                       goto err;
+               if (port_retry)
+                       goto retry;
+               res = BIND_REJECT;
+               goto out;
+       }
+
+       goto out;
+retry:
+       if (domain == AF_INET)
+               addr4->sin_port = htons(port_retry);
+       else
+               addr6->sin6_port = htons(port_retry);
+       if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
+               if (errno != EPERM)
+                       goto err;
+               res = RETRY_REJECT;
+       } else {
+               res = RETRY_SUCCESS;
+       }
+       goto out;
+err:
+       res = -1;
+out:
+       close(sockfd);
+       return res;
+}
+
+static int run_test(int cgroup_fd, struct sock_post_bind_test *test)
+{
+       int err, prog_fd, res, ret = 0;
+
+       prog_fd = load_prog(test->insns, test->expected_attach_type);
+       if (prog_fd < 0)
+               goto err;
+
+       err = bpf_prog_attach(prog_fd, cgroup_fd, test->attach_type, 0);
+       if (err < 0) {
+               if (test->result == ATTACH_REJECT)
+                       goto out;
+               else
+                       goto err;
+       }
+
+       res = bind_sock(test->domain, test->type, test->ip, test->port,
+                       test->port_retry);
+       if (res > 0 && test->result == res)
+               goto out;
+err:
+       ret = -1;
+out:
+       /* Detaching w/o checking return code: best effort attempt. */
+       if (prog_fd != -1)
+               bpf_prog_detach(cgroup_fd, test->attach_type);
+       close(prog_fd);
+       return ret;
+}
+
+void test_sock_post_bind(void)
+{
+       struct netns_obj *ns;
+       int cgroup_fd;
+       int i;
+
+       cgroup_fd = test__join_cgroup("/post_bind");
+       if (!ASSERT_OK_FD(cgroup_fd, "join_cgroup"))
+               return;
+
+       ns = netns_new(TEST_NS, true);
+       if (!ASSERT_OK_PTR(ns, "netns_new"))
+               goto cleanup;
+
+       for (i = 0; i < ARRAY_SIZE(tests); i++) {
+               if (!test__start_subtest(tests[i].descr))
+                       continue;
+
+               ASSERT_OK(run_test(cgroup_fd, &tests[i]), tests[i].descr);
+       }
+
+cleanup:
+       netns_free(ns);
+       close(cgroup_fd);
+}

diff --git a/tools/testing/selftests/bpf/test_sock.c b/tools/testing/selftests/bpf/test_sock.c
index 810c3740b2ccbbcaec133848f1dc902d6bfce2e0..9ed908163d984d754327c52e6bc29d1f2839f43f 100644 (file)
--- a/tools/testing/selftests/bpf/test_sock.c
+++ b/tools/testing/selftests/bpf/test_sock.c
@@ -127,251 +127,6 @@ static struct sock_test tests[] = {
                .port = 8097,
                .result = SUCCESS,
        },
-       {
-               .descr = "attach type mismatch bind4 vs bind6",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .result = ATTACH_REJECT,
-       },
-       {
-               .descr = "attach type mismatch bind6 vs bind4",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .result = ATTACH_REJECT,
-       },
-       {
-               .descr = "attach type mismatch default vs bind4",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = 0,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .result = ATTACH_REJECT,
-       },
-       {
-               .descr = "attach type mismatch bind6 vs sock_create",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .attach_type = BPF_CGROUP_INET_SOCK_CREATE,
-               .result = ATTACH_REJECT,
-       },
-       {
-               .descr = "bind4 reject all",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .domain = AF_INET,
-               .type = SOCK_STREAM,
-               .ip = "0.0.0.0",
-               .result = BIND_REJECT,
-       },
-       {
-               .descr = "bind6 reject all",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .domain = AF_INET6,
-               .type = SOCK_STREAM,
-               .ip = "::",
-               .result = BIND_REJECT,
-       },
-       {
-               .descr = "bind6 deny specific IP & port",
-               .insns = {
-                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
-
-                       /* if (ip == expected && port == expected) */
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_ip6[3])),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
-                                   __bpf_constant_ntohl(0x00000001), 4),
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_port)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x2001, 2),
-
-                       /* return DENY; */
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_JMP_A(1),
-
-                       /* else return ALLOW; */
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .domain = AF_INET6,
-               .type = SOCK_STREAM,
-               .ip = "::1",
-               .port = 8193,
-               .result = BIND_REJECT,
-       },
-       {
-               .descr = "bind4 allow specific IP & port",
-               .insns = {
-                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
-
-                       /* if (ip == expected && port == expected) */
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_ip4)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
-                                   __bpf_constant_ntohl(0x7F000001), 4),
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_port)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
-
-                       /* return ALLOW; */
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_JMP_A(1),
-
-                       /* else return DENY; */
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .domain = AF_INET,
-               .type = SOCK_STREAM,
-               .ip = "127.0.0.1",
-               .port = 4098,
-               .result = SUCCESS,
-       },
-       {
-               .descr = "bind4 deny specific IP & port of TCP, and retry",
-               .insns = {
-                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
-
-                       /* if (ip == expected && port == expected) */
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_ip4)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
-                                   __bpf_constant_ntohl(0x7F000001), 4),
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_port)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
-
-                       /* return DENY; */
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_JMP_A(1),
-
-                       /* else return ALLOW; */
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .domain = AF_INET,
-               .type = SOCK_STREAM,
-               .ip = "127.0.0.1",
-               .port = 4098,
-               .port_retry = 5000,
-               .result = RETRY_SUCCESS,
-       },
-       {
-               .descr = "bind4 deny specific IP & port of UDP, and retry",
-               .insns = {
-                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
-
-                       /* if (ip == expected && port == expected) */
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_ip4)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
-                                   __bpf_constant_ntohl(0x7F000001), 4),
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_port)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
-
-                       /* return DENY; */
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_JMP_A(1),
-
-                       /* else return ALLOW; */
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .domain = AF_INET,
-               .type = SOCK_DGRAM,
-               .ip = "127.0.0.1",
-               .port = 4098,
-               .port_retry = 5000,
-               .result = RETRY_SUCCESS,
-       },
-       {
-               .descr = "bind6 deny specific IP & port, and retry",
-               .insns = {
-                       BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
-
-                       /* if (ip == expected && port == expected) */
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_ip6[3])),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
-                                   __bpf_constant_ntohl(0x00000001), 4),
-                       BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
-                                   offsetof(struct bpf_sock, src_port)),
-                       BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x2001, 2),
-
-                       /* return DENY; */
-                       BPF_MOV64_IMM(BPF_REG_0, 0),
-                       BPF_JMP_A(1),
-
-                       /* else return ALLOW; */
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .domain = AF_INET6,
-               .type = SOCK_STREAM,
-               .ip = "::1",
-               .port = 8193,
-               .port_retry = 9000,
-               .result = RETRY_SUCCESS,
-       },
-       {
-               .descr = "bind4 allow all",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .attach_type = BPF_CGROUP_INET4_POST_BIND,
-               .domain = AF_INET,
-               .type = SOCK_STREAM,
-               .ip = "0.0.0.0",
-               .result = SUCCESS,
-       },
-       {
-               .descr = "bind6 allow all",
-               .insns = {
-                       BPF_MOV64_IMM(BPF_REG_0, 1),
-                       BPF_EXIT_INSN(),
-               },
-               .expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .attach_type = BPF_CGROUP_INET6_POST_BIND,
-               .domain = AF_INET6,
-               .type = SOCK_STREAM,
-               .ip = "::",
-               .result = SUCCESS,
-       },
 };
 
 static size_t probe_prog_length(const struct bpf_insn *fp)