diff options
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/tc_helpers.h | 72 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/tc_opts.c | 2239 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_tc_link.c | 40 |
3 files changed, 2351 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_helpers.h b/tools/testing/selftests/bpf/prog_tests/tc_helpers.h new file mode 100644 index 000000000000..6c93215be8a3 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/tc_helpers.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2023 Isovalent */ +#ifndef TC_HELPERS +#define TC_HELPERS +#include <test_progs.h> + +static inline __u32 id_from_prog_fd(int fd) +{ + struct bpf_prog_info prog_info = {}; + __u32 prog_info_len = sizeof(prog_info); + int err; + + err = bpf_obj_get_info_by_fd(fd, &prog_info, &prog_info_len); + if (!ASSERT_OK(err, "id_from_prog_fd")) + return 0; + + ASSERT_NEQ(prog_info.id, 0, "prog_info.id"); + return prog_info.id; +} + +static inline __u32 id_from_link_fd(int fd) +{ + struct bpf_link_info link_info = {}; + __u32 link_info_len = sizeof(link_info); + int err; + + err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len); + if (!ASSERT_OK(err, "id_from_link_fd")) + return 0; + + ASSERT_NEQ(link_info.id, 0, "link_info.id"); + return link_info.id; +} + +static inline __u32 ifindex_from_link_fd(int fd) +{ + struct bpf_link_info link_info = {}; + __u32 link_info_len = sizeof(link_info); + int err; + + err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len); + if (!ASSERT_OK(err, "id_from_link_fd")) + return 0; + + return link_info.tcx.ifindex; +} + +static inline void __assert_mprog_count(int target, int expected, bool miniq, int ifindex) +{ + __u32 count = 0, attach_flags = 0; + int err; + + err = bpf_prog_query(ifindex, target, 0, &attach_flags, + NULL, &count); + ASSERT_EQ(count, expected, "count"); + if (!expected && !miniq) + ASSERT_EQ(err, -ENOENT, "prog_query"); + else + ASSERT_EQ(err, 0, "prog_query"); +} + +static inline void assert_mprog_count(int target, int expected) +{ + __assert_mprog_count(target, expected, false, loopback); +} + +static inline void assert_mprog_count_ifindex(int ifindex, int target, int expected) +{ + __assert_mprog_count(target, expected, false, ifindex); +} + +#endif /* TC_HELPERS */ diff --git a/tools/testing/selftests/bpf/prog_tests/tc_opts.c b/tools/testing/selftests/bpf/prog_tests/tc_opts.c new file mode 100644 index 000000000000..7914100f9b46 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/tc_opts.c @@ -0,0 +1,2239 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Isovalent */ +#include <uapi/linux/if_link.h> +#include <net/if.h> +#include <test_progs.h> + +#define loopback 1 +#define ping_cmd "ping -q -c1 -w1 127.0.0.1 > /dev/null" + +#include "test_tc_link.skel.h" +#include "tc_helpers.h" + +void serial_test_tc_opts_basic(void) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, id1, id2; + struct test_tc_link *skel; + __u32 prog_ids[2]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + + assert_mprog_count(BPF_TCX_INGRESS, 0); + assert_mprog_count(BPF_TCX_EGRESS, 0); + + ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2"); + + err = bpf_prog_attach_opts(fd1, loopback, BPF_TCX_INGRESS, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(BPF_TCX_INGRESS, 1); + assert_mprog_count(BPF_TCX_EGRESS, 0); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, BPF_TCX_INGRESS, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_in; + + ASSERT_EQ(optq.count, 1, "count"); + ASSERT_EQ(optq.revision, 2, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2"); + + err = bpf_prog_attach_opts(fd2, loopback, BPF_TCX_EGRESS, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_in; + + assert_mprog_count(BPF_TCX_INGRESS, 1); + assert_mprog_count(BPF_TCX_EGRESS, 1); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, BPF_TCX_EGRESS, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_eg; + + ASSERT_EQ(optq.count, 1, "count"); + ASSERT_EQ(optq.revision, 2, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + +cleanup_eg: + err = bpf_prog_detach_opts(fd2, loopback, BPF_TCX_EGRESS, &optd); + ASSERT_OK(err, "prog_detach_eg"); + + assert_mprog_count(BPF_TCX_INGRESS, 1); + assert_mprog_count(BPF_TCX_EGRESS, 0); + +cleanup_in: + err = bpf_prog_detach_opts(fd1, loopback, BPF_TCX_INGRESS, &optd); + ASSERT_OK(err, "prog_detach_in"); + + assert_mprog_count(BPF_TCX_INGRESS, 0); + assert_mprog_count(BPF_TCX_EGRESS, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +static void test_tc_opts_before_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target; + + assert_mprog_count(target, 2); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 3, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + .relative_fd = fd2, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target2; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target3; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 4, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + .relative_id = id1, + ); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target3; + + assert_mprog_count(target, 4); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id4, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id2, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4"); + +cleanup_target4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + +cleanup_target3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup_target2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup_target: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_before(void) +{ + test_tc_opts_before_target(BPF_TCX_INGRESS); + test_tc_opts_before_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_after_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target; + + assert_mprog_count(target, 2); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 3, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target2; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target3; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 4, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + .relative_id = id2, + ); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target3; + + assert_mprog_count(target, 4); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4"); + +cleanup_target4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target3; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 6, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + +cleanup_target3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 7, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + +cleanup_target2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target; + + ASSERT_EQ(optq.count, 1, "count"); + ASSERT_EQ(optq.revision, 8, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); + +cleanup_target: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_after(void) +{ + test_tc_opts_after_target(BPF_TCX_INGRESS); + test_tc_opts_after_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_revision_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, id1, id2; + struct test_tc_link *skel; + __u32 prog_ids[3]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .expected_revision = 1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .expected_revision = 1, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, -ESTALE, "prog_attach")) + goto cleanup_target; + + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .expected_revision = 2, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target; + + assert_mprog_count(target, 2); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 3, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + + LIBBPF_OPTS_RESET(optd, + .expected_revision = 2, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_EQ(err, -ESTALE, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup_target2: + LIBBPF_OPTS_RESET(optd, + .expected_revision = 3, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup_target: + LIBBPF_OPTS_RESET(optd); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_revision(void) +{ + test_tc_opts_revision_target(BPF_TCX_INGRESS); + test_tc_opts_revision_target(BPF_TCX_EGRESS); +} + +static void test_tc_chain_classic(int target, bool chain_tc_old) +{ + LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1); + LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback); + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + bool hook_created = false, tc_attached = false; + __u32 fd1, fd2, fd3, id1, id2, id3; + struct test_tc_link *skel; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + if (chain_tc_old) { + tc_hook.attach_point = target == BPF_TCX_INGRESS ? + BPF_TC_INGRESS : BPF_TC_EGRESS; + err = bpf_tc_hook_create(&tc_hook); + if (err == 0) + hook_created = true; + err = err == -EEXIST ? 0 : err; + if (!ASSERT_OK(err, "bpf_tc_hook_create")) + goto cleanup; + + tc_opts.prog_fd = fd3; + err = bpf_tc_attach(&tc_hook, &tc_opts); + if (!ASSERT_OK(err, "bpf_tc_attach")) + goto cleanup; + tc_attached = true; + } + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_detach; + + assert_mprog_count(target, 2); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3"); + + skel->bss->seen_tc1 = false; + skel->bss->seen_tc2 = false; + skel->bss->seen_tc3 = false; + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + if (!ASSERT_OK(err, "prog_detach")) + goto cleanup_detach; + + assert_mprog_count(target, 1); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3"); + +cleanup_detach: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + if (!ASSERT_OK(err, "prog_detach")) + goto cleanup; + + __assert_mprog_count(target, 0, chain_tc_old, loopback); +cleanup: + if (tc_attached) { + tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0; + err = bpf_tc_detach(&tc_hook, &tc_opts); + ASSERT_OK(err, "bpf_tc_detach"); + } + if (hook_created) { + tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS; + bpf_tc_hook_destroy(&tc_hook); + } + test_tc_link__destroy(skel); + assert_mprog_count(target, 0); +} + +void serial_test_tc_opts_chain_classic(void) +{ + test_tc_chain_classic(BPF_TCX_INGRESS, false); + test_tc_chain_classic(BPF_TCX_EGRESS, false); + test_tc_chain_classic(BPF_TCX_INGRESS, true); + test_tc_chain_classic(BPF_TCX_EGRESS, true); +} + +static void test_tc_opts_replace_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, id1, id2, id3, detach_fd; + __u32 prog_ids[4], prog_flags[4]; + struct test_tc_link *skel; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .expected_revision = 1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + .relative_id = id1, + .expected_revision = 2, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target; + + detach_fd = fd2; + + assert_mprog_count(target, 2); + + optq.prog_attach_flags = prog_flags; + optq.prog_ids = prog_ids; + + memset(prog_flags, 0, sizeof(prog_flags)); + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 3, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_EQ(optq.prog_attach_flags[0], 0, "prog_flags[0]"); + ASSERT_EQ(optq.prog_attach_flags[1], 0, "prog_flags[1]"); + ASSERT_EQ(optq.prog_attach_flags[2], 0, "prog_flags[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); + + skel->bss->seen_tc1 = false; + skel->bss->seen_tc2 = false; + skel->bss->seen_tc3 = false; + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = fd2, + .expected_revision = 3, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target2; + + detach_fd = fd3; + + assert_mprog_count(target, 2); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 4, "revision"); + ASSERT_EQ(optq.prog_ids[0], id3, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3"); + + skel->bss->seen_tc1 = false; + skel->bss->seen_tc2 = false; + skel->bss->seen_tc3 = false; + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE | BPF_F_BEFORE, + .replace_prog_fd = fd3, + .relative_fd = fd1, + .expected_revision = 4, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target2; + + detach_fd = fd2; + + assert_mprog_count(target, 2); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = fd2, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE | BPF_F_AFTER, + .replace_prog_fd = fd2, + .relative_fd = fd1, + .expected_revision = 5, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + ASSERT_EQ(err, -ERANGE, "prog_attach"); + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE | BPF_F_AFTER | BPF_F_REPLACE, + .replace_prog_fd = fd2, + .relative_fd = fd1, + .expected_revision = 5, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + ASSERT_EQ(err, -ERANGE, "prog_attach"); + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_id = id1, + .expected_revision = 5, + ); + +cleanup_target2: + err = bpf_prog_detach_opts(detach_fd, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup_target: + LIBBPF_OPTS_RESET(optd); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_replace(void) +{ + test_tc_opts_replace_target(BPF_TCX_INGRESS); + test_tc_opts_replace_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_invalid_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + __u32 fd1, fd2, id1, id2; + struct test_tc_link *skel; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE | BPF_F_AFTER, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -ERANGE, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE | BPF_F_ID, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -ENOENT, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER | BPF_F_ID, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -ENOENT, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .relative_fd = fd2, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EINVAL, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE | BPF_F_AFTER, + .relative_fd = fd2, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -ENOENT, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_ID, + .relative_id = id2, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EINVAL, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + .relative_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -ENOENT, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -ENOENT, "prog_attach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(opta); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + .relative_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .relative_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EINVAL, "prog_attach_x1"); + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = fd1, + ); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + assert_mprog_count(target, 1); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_invalid(void) +{ + test_tc_opts_invalid_target(BPF_TCX_INGRESS); + test_tc_opts_invalid_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_prepend_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target; + + assert_mprog_count(target, 2); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 3, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target2; + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target3; + + assert_mprog_count(target, 4); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id4, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id1, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4"); + +cleanup_target4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + +cleanup_target3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup_target2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup_target: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_prepend(void) +{ + test_tc_opts_prepend_target(BPF_TCX_INGRESS); + test_tc_opts_prepend_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_append_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target; + + assert_mprog_count(target, 2); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target2; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 3, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4"); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target2; + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup_target3; + + assert_mprog_count(target, 4); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup_target4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + + ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1"); + ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2"); + ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3"); + ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4"); + +cleanup_target4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + +cleanup_target3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup_target2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup_target: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_append(void) +{ + test_tc_opts_append_target(BPF_TCX_INGRESS); + test_tc_opts_append_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_dev_cleanup_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + int err, ifindex; + + ASSERT_OK(system("ip link add dev tcx_opts1 type veth peer name tcx_opts2"), "add veth"); + ifindex = if_nametoindex("tcx_opts1"); + ASSERT_NEQ(ifindex, 0, "non_zero_ifindex"); + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count_ifindex(ifindex, target, 0); + + err = bpf_prog_attach_opts(fd1, ifindex, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count_ifindex(ifindex, target, 1); + + err = bpf_prog_attach_opts(fd2, ifindex, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup1; + + assert_mprog_count_ifindex(ifindex, target, 2); + + err = bpf_prog_attach_opts(fd3, ifindex, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup2; + + assert_mprog_count_ifindex(ifindex, target, 3); + + err = bpf_prog_attach_opts(fd4, ifindex, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup3; + + assert_mprog_count_ifindex(ifindex, target, 4); + + ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth"); + ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed"); + ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed"); + return; +cleanup3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count_ifindex(ifindex, target, 2); +cleanup2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count_ifindex(ifindex, target, 1); +cleanup1: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count_ifindex(ifindex, target, 0); +cleanup: + test_tc_link__destroy(skel); + + ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth"); + ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed"); + ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed"); +} + +void serial_test_tc_opts_dev_cleanup(void) +{ + test_tc_opts_dev_cleanup_target(BPF_TCX_INGRESS); + test_tc_opts_dev_cleanup_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_mixed_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + LIBBPF_OPTS(bpf_tcx_opts, optl); + __u32 pid1, pid2, pid3, pid4, lid2, lid4; + __u32 prog_flags[4], link_flags[4]; + __u32 prog_ids[4], link_ids[4]; + struct test_tc_link *skel; + struct bpf_link *link; + int err, detach_fd; + + skel = test_tc_link__open(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target), + 0, "tc1_attach_type"); + ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target), + 0, "tc2_attach_type"); + ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target), + 0, "tc3_attach_type"); + ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target), + 0, "tc4_attach_type"); + + err = test_tc_link__load(skel); + if (!ASSERT_OK(err, "skel_load")) + goto cleanup; + + pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1)); + pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2)); + pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3)); + pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4)); + + ASSERT_NEQ(pid1, pid2, "prog_ids_1_2"); + ASSERT_NEQ(pid3, pid4, "prog_ids_3_4"); + ASSERT_NEQ(pid2, pid3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc1), + loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + detach_fd = bpf_program__fd(skel->progs.tc1); + + assert_mprog_count(target, 1); + + link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); + if (!ASSERT_OK_PTR(link, "link_attach")) + goto cleanup1; + skel->links.tc2 = link; + + lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); + + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = bpf_program__fd(skel->progs.tc1), + ); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc2), + loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = bpf_program__fd(skel->progs.tc2), + ); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc1), + loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = bpf_program__fd(skel->progs.tc2), + ); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc3), + loopback, target, &opta); + ASSERT_EQ(err, -EBUSY, "prog_attach"); + + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = bpf_program__fd(skel->progs.tc1), + ); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc3), + loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup1; + + detach_fd = bpf_program__fd(skel->progs.tc3); + + assert_mprog_count(target, 2); + + link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl); + if (!ASSERT_OK_PTR(link, "link_attach")) + goto cleanup1; + skel->links.tc4 = link; + + lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4)); + + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(opta, + .flags = BPF_F_REPLACE, + .replace_prog_fd = bpf_program__fd(skel->progs.tc4), + ); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc2), + loopback, target, &opta); + ASSERT_EQ(err, -EEXIST, "prog_attach"); + + optq.prog_ids = prog_ids; + optq.prog_attach_flags = prog_flags; + optq.link_ids = link_ids; + optq.link_attach_flags = link_flags; + + memset(prog_ids, 0, sizeof(prog_ids)); + memset(prog_flags, 0, sizeof(prog_flags)); + memset(link_ids, 0, sizeof(link_ids)); + memset(link_flags, 0, sizeof(link_flags)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup1; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], pid3, "prog_ids[0]"); + ASSERT_EQ(optq.prog_attach_flags[0], 0, "prog_flags[0]"); + ASSERT_EQ(optq.link_ids[0], 0, "link_ids[0]"); + ASSERT_EQ(optq.link_attach_flags[0], 0, "link_flags[0]"); + ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_attach_flags[1], 0, "prog_flags[1]"); + ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]"); + ASSERT_EQ(optq.link_attach_flags[1], 0, "link_flags[1]"); + ASSERT_EQ(optq.prog_ids[2], pid4, "prog_ids[2]"); + ASSERT_EQ(optq.prog_attach_flags[2], 0, "prog_flags[2]"); + ASSERT_EQ(optq.link_ids[2], lid4, "link_ids[2]"); + ASSERT_EQ(optq.link_attach_flags[2], 0, "link_flags[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + ASSERT_EQ(optq.prog_attach_flags[3], 0, "prog_flags[3]"); + ASSERT_EQ(optq.link_ids[3], 0, "link_ids[3]"); + ASSERT_EQ(optq.link_attach_flags[3], 0, "link_flags[3]"); + + ASSERT_OK(system(ping_cmd), ping_cmd); + +cleanup1: + err = bpf_prog_detach_opts(detach_fd, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup: + test_tc_link__destroy(skel); + assert_mprog_count(target, 0); +} + +void serial_test_tc_opts_mixed(void) +{ + test_tc_opts_mixed_target(BPF_TCX_INGRESS); + test_tc_opts_mixed_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_demixed_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_tcx_opts, optl); + struct test_tc_link *skel; + struct bpf_link *link; + __u32 pid1, pid2; + int err; + + skel = test_tc_link__open(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target), + 0, "tc1_attach_type"); + ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target), + 0, "tc2_attach_type"); + + err = test_tc_link__load(skel); + if (!ASSERT_OK(err, "skel_load")) + goto cleanup; + + pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1)); + pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2)); + ASSERT_NEQ(pid1, pid2, "prog_ids_1_2"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc1), + loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); + if (!ASSERT_OK_PTR(link, "link_attach")) + goto cleanup1; + skel->links.tc2 = link; + + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_EQ(err, -EBUSY, "prog_detach"); + + assert_mprog_count(target, 2); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 1); + goto cleanup; + +cleanup1: + err = bpf_prog_detach_opts(bpf_program__fd(skel->progs.tc1), + loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup: + test_tc_link__destroy(skel); + assert_mprog_count(target, 0); +} + +void serial_test_tc_opts_demixed(void) +{ + test_tc_opts_demixed_target(BPF_TCX_INGRESS); + test_tc_opts_demixed_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_detach_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup1; + + assert_mprog_count(target, 2); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup2; + + assert_mprog_count(target, 3); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup3; + + assert_mprog_count(target, 4); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 3); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 6, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id4, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 2); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 7, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + LIBBPF_OPTS_RESET(optd); + + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_EQ(err, -ENOENT, "prog_detach"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_EQ(err, -ENOENT, "prog_detach"); + goto cleanup; + +cleanup4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + +cleanup3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup1: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_detach(void) +{ + test_tc_opts_detach_target(BPF_TCX_INGRESS); + test_tc_opts_detach_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_detach_before_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup1; + + assert_mprog_count(target, 2); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup2; + + assert_mprog_count(target, 3); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup3; + + assert_mprog_count(target, 4); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_fd = fd2, + ); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 3); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 6, "revision"); + ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id4, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_fd = fd2, + ); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_EQ(err, -ENOENT, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_fd = fd4, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_EQ(err, -ERANGE, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_fd = fd1, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_EQ(err, -ENOENT, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_fd = fd3, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 2); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 7, "revision"); + ASSERT_EQ(optq.prog_ids[0], id3, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id4, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + .relative_fd = fd4, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 1); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 1, "count"); + ASSERT_EQ(optq.revision, 8, "revision"); + ASSERT_EQ(optq.prog_ids[0], id4, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_BEFORE, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 0); + goto cleanup; + +cleanup4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + +cleanup3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup1: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_detach_before(void) +{ + test_tc_opts_detach_before_target(BPF_TCX_INGRESS); + test_tc_opts_detach_before_target(BPF_TCX_EGRESS); +} + +static void test_tc_opts_detach_after_target(int target) +{ + LIBBPF_OPTS(bpf_prog_attach_opts, opta); + LIBBPF_OPTS(bpf_prog_detach_opts, optd); + LIBBPF_OPTS(bpf_prog_query_opts, optq); + __u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4; + struct test_tc_link *skel; + __u32 prog_ids[5]; + int err; + + skel = test_tc_link__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; + + fd1 = bpf_program__fd(skel->progs.tc1); + fd2 = bpf_program__fd(skel->progs.tc2); + fd3 = bpf_program__fd(skel->progs.tc3); + fd4 = bpf_program__fd(skel->progs.tc4); + + id1 = id_from_prog_fd(fd1); + id2 = id_from_prog_fd(fd2); + id3 = id_from_prog_fd(fd3); + id4 = id_from_prog_fd(fd4); + + ASSERT_NEQ(id1, id2, "prog_ids_1_2"); + ASSERT_NEQ(id3, id4, "prog_ids_3_4"); + ASSERT_NEQ(id2, id3, "prog_ids_2_3"); + + assert_mprog_count(target, 0); + + err = bpf_prog_attach_opts(fd1, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup; + + assert_mprog_count(target, 1); + + err = bpf_prog_attach_opts(fd2, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup1; + + assert_mprog_count(target, 2); + + err = bpf_prog_attach_opts(fd3, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup2; + + assert_mprog_count(target, 3); + + err = bpf_prog_attach_opts(fd4, loopback, target, &opta); + if (!ASSERT_EQ(err, 0, "prog_attach")) + goto cleanup3; + + assert_mprog_count(target, 4); + + optq.prog_ids = prog_ids; + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 4, "count"); + ASSERT_EQ(optq.revision, 5, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]"); + ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 3); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 3, "count"); + ASSERT_EQ(optq.revision, 6, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], id4, "prog_ids[2]"); + ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_EQ(err, -ENOENT, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd4, + ); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_EQ(err, -ERANGE, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd3, + ); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_EQ(err, -ERANGE, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_EQ(err, -ERANGE, "prog_detach"); + assert_mprog_count(target, 3); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 2); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 2, "count"); + ASSERT_EQ(optq.revision, 7, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], id4, "prog_ids[1]"); + ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + .relative_fd = fd1, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 1); + + memset(prog_ids, 0, sizeof(prog_ids)); + optq.count = ARRAY_SIZE(prog_ids); + + err = bpf_prog_query_opts(loopback, target, &optq); + if (!ASSERT_OK(err, "prog_query")) + goto cleanup4; + + ASSERT_EQ(optq.count, 1, "count"); + ASSERT_EQ(optq.revision, 8, "revision"); + ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]"); + ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); + + LIBBPF_OPTS_RESET(optd, + .flags = BPF_F_AFTER, + ); + + err = bpf_prog_detach_opts(0, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + + assert_mprog_count(target, 0); + goto cleanup; + +cleanup4: + err = bpf_prog_detach_opts(fd4, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 3); + +cleanup3: + err = bpf_prog_detach_opts(fd3, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 2); + +cleanup2: + err = bpf_prog_detach_opts(fd2, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 1); + +cleanup1: + err = bpf_prog_detach_opts(fd1, loopback, target, &optd); + ASSERT_OK(err, "prog_detach"); + assert_mprog_count(target, 0); + +cleanup: + test_tc_link__destroy(skel); +} + +void serial_test_tc_opts_detach_after(void) +{ + test_tc_opts_detach_after_target(BPF_TCX_INGRESS); + test_tc_opts_detach_after_target(BPF_TCX_EGRESS); +} diff --git a/tools/testing/selftests/bpf/progs/test_tc_link.c b/tools/testing/selftests/bpf/progs/test_tc_link.c new file mode 100644 index 000000000000..ed1fd0e9cee9 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_tc_link.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Isovalent */ +#include <stdbool.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +char LICENSE[] SEC("license") = "GPL"; + +bool seen_tc1; +bool seen_tc2; +bool seen_tc3; +bool seen_tc4; + +SEC("tc/ingress") +int tc1(struct __sk_buff *skb) +{ + seen_tc1 = true; + return TCX_NEXT; +} + +SEC("tc/egress") +int tc2(struct __sk_buff *skb) +{ + seen_tc2 = true; + return TCX_NEXT; +} + +SEC("tc/egress") +int tc3(struct __sk_buff *skb) +{ + seen_tc3 = true; + return TCX_NEXT; +} + +SEC("tc/egress") +int tc4(struct __sk_buff *skb) +{ + seen_tc4 = true; + return TCX_NEXT; +} |