| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Daniel Borkmann | 17608 | 99.98% | 10 | 83.33% |
| Andrii Nakryiko | 3 | 0.02% | 1 | 8.33% |
| Feng Yang | 1 | 0.01% | 1 | 8.33% |
| Total | 17612 | 12 |
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// 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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); tc_skel_reset_all_seen(skel); 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"); err = bpf_prog_detach_opts(fd2, loopback, target, &optd); if (!ASSERT_OK(err, "prog_detach")) goto cleanup_detach; assert_mprog_count(target, 1); tc_skel_reset_all_seen(skel); 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); 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]"); tc_skel_reset_all_seen(skel); 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, .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]"); tc_skel_reset_all_seen(skel); 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"); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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]"); tc_skel_reset_all_seen(skel); 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); } static void test_tc_opts_delete_empty(int target, bool chain_tc_old) { LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback); LIBBPF_OPTS(bpf_prog_detach_opts, optd); int err; 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); ASSERT_OK(err, "bpf_tc_hook_create"); assert_mprog_count(target, 0); } err = bpf_prog_detach_opts(0, loopback, target, &optd); ASSERT_EQ(err, -ENOENT, "prog_detach"); if (chain_tc_old) { tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS; bpf_tc_hook_destroy(&tc_hook); } assert_mprog_count(target, 0); } void serial_test_tc_opts_delete_empty(void) { test_tc_opts_delete_empty(BPF_TCX_INGRESS, false); test_tc_opts_delete_empty(BPF_TCX_EGRESS, false); test_tc_opts_delete_empty(BPF_TCX_INGRESS, true); test_tc_opts_delete_empty(BPF_TCX_EGRESS, true); } static void test_tc_chain_mixed(int target) { 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); __u32 fd1, fd2, fd3, id1, id2, id3; struct test_tc_link *skel; int err, detach_fd; skel = test_tc_link__open_and_load(); if (!ASSERT_OK_PTR(skel, "skel_load")) goto cleanup; fd1 = bpf_program__fd(skel->progs.tc4); fd2 = bpf_program__fd(skel->progs.tc5); fd3 = bpf_program__fd(skel->progs.tc6); 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); tc_hook.attach_point = target == BPF_TCX_INGRESS ? BPF_TC_INGRESS : BPF_TC_EGRESS; err = bpf_tc_hook_create(&tc_hook); err = err == -EEXIST ? 0 : err; if (!ASSERT_OK(err, "bpf_tc_hook_create")) goto cleanup; tc_opts.prog_fd = fd2; err = bpf_tc_attach(&tc_hook, &tc_opts); if (!ASSERT_OK(err, "bpf_tc_attach")) goto cleanup_hook; err = bpf_prog_attach_opts(fd3, loopback, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup_filter; detach_fd = fd3; assert_mprog_count(target, 1); tc_skel_reset_all_seen(skel); ASSERT_OK(system(ping_cmd), ping_cmd); ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4"); ASSERT_EQ(skel->bss->seen_tc5, false, "seen_tc5"); ASSERT_EQ(skel->bss->seen_tc6, true, "seen_tc6"); LIBBPF_OPTS_RESET(opta, .flags = BPF_F_REPLACE, .replace_prog_fd = fd3, ); err = bpf_prog_attach_opts(fd1, loopback, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup_opts; detach_fd = fd1; assert_mprog_count(target, 1); tc_skel_reset_all_seen(skel); ASSERT_OK(system(ping_cmd), ping_cmd); ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4"); ASSERT_EQ(skel->bss->seen_tc5, true, "seen_tc5"); ASSERT_EQ(skel->bss->seen_tc6, false, "seen_tc6"); cleanup_opts: err = bpf_prog_detach_opts(detach_fd, loopback, target, &optd); ASSERT_OK(err, "prog_detach"); assert_mprog_count(target, 0); tc_skel_reset_all_seen(skel); ASSERT_OK(system(ping_cmd), ping_cmd); ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4"); ASSERT_EQ(skel->bss->seen_tc5, true, "seen_tc5"); ASSERT_EQ(skel->bss->seen_tc6, false, "seen_tc6"); cleanup_filter: 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"); cleanup_hook: tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS; bpf_tc_hook_destroy(&tc_hook); cleanup: test_tc_link__destroy(skel); } void serial_test_tc_opts_chain_mixed(void) { test_tc_chain_mixed(BPF_TCX_INGRESS); test_tc_chain_mixed(BPF_TCX_EGRESS); } static int generate_dummy_prog(void) { const struct bpf_insn prog_insns[] = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }; const size_t prog_insn_cnt = ARRAY_SIZE(prog_insns); LIBBPF_OPTS(bpf_prog_load_opts, opts); const size_t log_buf_sz = 256; char log_buf[log_buf_sz]; int fd = -1; opts.log_buf = log_buf; opts.log_size = log_buf_sz; log_buf[0] = '\0'; opts.log_level = 0; fd = bpf_prog_load(BPF_PROG_TYPE_SCHED_CLS, "tcx_prog", "GPL", prog_insns, prog_insn_cnt, &opts); ASSERT_STREQ(log_buf, "", "log_0"); ASSERT_GE(fd, 0, "prog_fd"); return fd; } static void test_tc_opts_max_target(int target, int flags, bool relative) { int err, ifindex, i, prog_fd, last_fd = -1; LIBBPF_OPTS(bpf_prog_attach_opts, opta); const int max_progs = 63; 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"); assert_mprog_count_ifindex(ifindex, target, 0); for (i = 0; i < max_progs; i++) { prog_fd = generate_dummy_prog(); if (!ASSERT_GE(prog_fd, 0, "dummy_prog")) goto cleanup; err = bpf_prog_attach_opts(prog_fd, ifindex, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup; assert_mprog_count_ifindex(ifindex, target, i + 1); if (i == max_progs - 1 && relative) last_fd = prog_fd; else close(prog_fd); } prog_fd = generate_dummy_prog(); if (!ASSERT_GE(prog_fd, 0, "dummy_prog")) goto cleanup; opta.flags = flags; if (last_fd > 0) opta.relative_fd = last_fd; err = bpf_prog_attach_opts(prog_fd, ifindex, target, &opta); ASSERT_EQ(err, -ERANGE, "prog_64_attach"); assert_mprog_count_ifindex(ifindex, target, max_progs); close(prog_fd); cleanup: if (last_fd > 0) close(last_fd); 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_max(void) { test_tc_opts_max_target(BPF_TCX_INGRESS, 0, false); test_tc_opts_max_target(BPF_TCX_EGRESS, 0, false); test_tc_opts_max_target(BPF_TCX_INGRESS, BPF_F_BEFORE, false); test_tc_opts_max_target(BPF_TCX_EGRESS, BPF_F_BEFORE, true); test_tc_opts_max_target(BPF_TCX_INGRESS, BPF_F_AFTER, true); test_tc_opts_max_target(BPF_TCX_EGRESS, BPF_F_AFTER, false); } static void test_tc_opts_query_target(int target) { const size_t attr_size = offsetofend(union bpf_attr, query); 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; union bpf_attr attr; __u32 prog_ids[10]; 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_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 = 2, ); err = bpf_prog_attach_opts(fd2, loopback, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup1; assert_mprog_count(target, 2); LIBBPF_OPTS_RESET(opta, .expected_revision = 3, ); err = bpf_prog_attach_opts(fd3, loopback, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup2; assert_mprog_count(target, 3); LIBBPF_OPTS_RESET(opta, .expected_revision = 4, ); err = bpf_prog_attach_opts(fd4, loopback, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup3; assert_mprog_count(target, 4); /* Test 1: Double query via libbpf API */ 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, NULL, "prog_ids"); ASSERT_EQ(optq.link_ids, NULL, "link_ids"); memset(prog_ids, 0, sizeof(prog_ids)); optq.prog_ids = 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]"); ASSERT_EQ(optq.link_ids, NULL, "link_ids"); /* Test 2: Double query via bpf_attr & bpf(2) directly */ memset(&attr, 0, attr_size); attr.query.target_ifindex = loopback; attr.query.attach_type = target; err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); if (!ASSERT_OK(err, "prog_query")) goto cleanup4; ASSERT_EQ(attr.query.count, 4, "count"); ASSERT_EQ(attr.query.revision, 5, "revision"); ASSERT_EQ(attr.query.query_flags, 0, "query_flags"); ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags"); ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex"); ASSERT_EQ(attr.query.attach_type, target, "attach_type"); ASSERT_EQ(attr.query.prog_ids, 0, "prog_ids"); ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags"); ASSERT_EQ(attr.query.link_ids, 0, "link_ids"); ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags"); memset(prog_ids, 0, sizeof(prog_ids)); attr.query.prog_ids = ptr_to_u64(prog_ids); err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); if (!ASSERT_OK(err, "prog_query")) goto cleanup4; ASSERT_EQ(attr.query.count, 4, "count"); ASSERT_EQ(attr.query.revision, 5, "revision"); ASSERT_EQ(attr.query.query_flags, 0, "query_flags"); ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags"); ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex"); ASSERT_EQ(attr.query.attach_type, target, "attach_type"); ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids"); ASSERT_EQ(prog_ids[0], id1, "prog_ids[0]"); ASSERT_EQ(prog_ids[1], id2, "prog_ids[1]"); ASSERT_EQ(prog_ids[2], id3, "prog_ids[2]"); ASSERT_EQ(prog_ids[3], id4, "prog_ids[3]"); ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]"); ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags"); ASSERT_EQ(attr.query.link_ids, 0, "link_ids"); ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags"); /* Test 3: Query with smaller prog_ids array */ memset(&attr, 0, attr_size); attr.query.target_ifindex = loopback; attr.query.attach_type = target; memset(prog_ids, 0, sizeof(prog_ids)); attr.query.prog_ids = ptr_to_u64(prog_ids); attr.query.count = 2; err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); ASSERT_EQ(err, -1, "prog_query_should_fail"); ASSERT_EQ(errno, ENOSPC, "prog_query_should_fail"); ASSERT_EQ(attr.query.count, 4, "count"); ASSERT_EQ(attr.query.revision, 5, "revision"); ASSERT_EQ(attr.query.query_flags, 0, "query_flags"); ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags"); ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex"); ASSERT_EQ(attr.query.attach_type, target, "attach_type"); ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids"); ASSERT_EQ(prog_ids[0], id1, "prog_ids[0]"); ASSERT_EQ(prog_ids[1], id2, "prog_ids[1]"); ASSERT_EQ(prog_ids[2], 0, "prog_ids[2]"); ASSERT_EQ(prog_ids[3], 0, "prog_ids[3]"); ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]"); ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags"); ASSERT_EQ(attr.query.link_ids, 0, "link_ids"); ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags"); /* Test 4: Query with larger prog_ids array */ memset(&attr, 0, attr_size); attr.query.target_ifindex = loopback; attr.query.attach_type = target; memset(prog_ids, 0, sizeof(prog_ids)); attr.query.prog_ids = ptr_to_u64(prog_ids); attr.query.count = 10; err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); if (!ASSERT_OK(err, "prog_query")) goto cleanup4; ASSERT_EQ(attr.query.count, 4, "count"); ASSERT_EQ(attr.query.revision, 5, "revision"); ASSERT_EQ(attr.query.query_flags, 0, "query_flags"); ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags"); ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex"); ASSERT_EQ(attr.query.attach_type, target, "attach_type"); ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids"); ASSERT_EQ(prog_ids[0], id1, "prog_ids[0]"); ASSERT_EQ(prog_ids[1], id2, "prog_ids[1]"); ASSERT_EQ(prog_ids[2], id3, "prog_ids[2]"); ASSERT_EQ(prog_ids[3], id4, "prog_ids[3]"); ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]"); ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags"); ASSERT_EQ(attr.query.link_ids, 0, "link_ids"); ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags"); /* Test 5: Query with NULL prog_ids array but with count > 0 */ memset(&attr, 0, attr_size); attr.query.target_ifindex = loopback; attr.query.attach_type = target; memset(prog_ids, 0, sizeof(prog_ids)); attr.query.count = sizeof(prog_ids); err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); if (!ASSERT_OK(err, "prog_query")) goto cleanup4; ASSERT_EQ(attr.query.count, 4, "count"); ASSERT_EQ(attr.query.revision, 5, "revision"); ASSERT_EQ(attr.query.query_flags, 0, "query_flags"); ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags"); ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex"); ASSERT_EQ(attr.query.attach_type, target, "attach_type"); ASSERT_EQ(prog_ids[0], 0, "prog_ids[0]"); ASSERT_EQ(prog_ids[1], 0, "prog_ids[1]"); ASSERT_EQ(prog_ids[2], 0, "prog_ids[2]"); ASSERT_EQ(prog_ids[3], 0, "prog_ids[3]"); ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]"); ASSERT_EQ(attr.query.prog_ids, 0, "prog_ids"); ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags"); ASSERT_EQ(attr.query.link_ids, 0, "link_ids"); ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags"); /* Test 6: Query with non-NULL prog_ids array but with count == 0 */ memset(&attr, 0, attr_size); attr.query.target_ifindex = loopback; attr.query.attach_type = target; memset(prog_ids, 0, sizeof(prog_ids)); attr.query.prog_ids = ptr_to_u64(prog_ids); err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); if (!ASSERT_OK(err, "prog_query")) goto cleanup4; ASSERT_EQ(attr.query.count, 4, "count"); ASSERT_EQ(attr.query.revision, 5, "revision"); ASSERT_EQ(attr.query.query_flags, 0, "query_flags"); ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags"); ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex"); ASSERT_EQ(attr.query.attach_type, target, "attach_type"); ASSERT_EQ(prog_ids[0], 0, "prog_ids[0]"); ASSERT_EQ(prog_ids[1], 0, "prog_ids[1]"); ASSERT_EQ(prog_ids[2], 0, "prog_ids[2]"); ASSERT_EQ(prog_ids[3], 0, "prog_ids[3]"); ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]"); ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids"); ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags"); ASSERT_EQ(attr.query.link_ids, 0, "link_ids"); ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags"); /* Test 7: Query with invalid flags */ attr.query.attach_flags = 0; attr.query.query_flags = 1; err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); ASSERT_EQ(err, -1, "prog_query_should_fail"); ASSERT_EQ(errno, EINVAL, "prog_query_should_fail"); attr.query.attach_flags = 1; attr.query.query_flags = 0; err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size); ASSERT_EQ(err, -1, "prog_query_should_fail"); ASSERT_EQ(errno, EINVAL, "prog_query_should_fail"); 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_query(void) { test_tc_opts_query_target(BPF_TCX_INGRESS); test_tc_opts_query_target(BPF_TCX_EGRESS); } static void test_tc_opts_query_attach_target(int target) { LIBBPF_OPTS(bpf_prog_attach_opts, opta); LIBBPF_OPTS(bpf_prog_detach_opts, optd); LIBBPF_OPTS(bpf_prog_query_opts, optq); struct test_tc_link *skel; __u32 prog_ids[2]; __u32 fd1, id1; 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); id1 = id_from_prog_fd(fd1); err = bpf_prog_query_opts(loopback, target, &optq); if (!ASSERT_OK(err, "prog_query")) goto cleanup; ASSERT_EQ(optq.count, 0, "count"); ASSERT_EQ(optq.revision, 1, "revision"); LIBBPF_OPTS_RESET(opta, .expected_revision = optq.revision, ); err = bpf_prog_attach_opts(fd1, loopback, target, &opta); if (!ASSERT_EQ(err, 0, "prog_attach")) goto cleanup; memset(prog_ids, 0, sizeof(prog_ids)); optq.prog_ids = prog_ids; 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, 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]"); 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_query_attach(void) { test_tc_opts_query_attach_target(BPF_TCX_INGRESS); test_tc_opts_query_attach_target(BPF_TCX_EGRESS); }
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