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selftests/bpf: Add mprog API tests for BPF tcx links
Add a big batch of test coverage to assert all aspects of the tcx link API: # ./vmtest.sh -- ./test_progs -t tc_links [...] torvalds#225 tc_links_after:OK torvalds#226 tc_links_append:OK torvalds#227 tc_links_basic:OK torvalds#228 tc_links_before:OK torvalds#229 tc_links_chain_classic:OK torvalds#230 tc_links_dev_cleanup:OK torvalds#231 tc_links_invalid:OK torvalds#232 tc_links_prepend:OK torvalds#233 tc_links_replace:OK torvalds#234 tc_links_revision:OK Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <[email protected]>
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tools/testing/selftests/bpf/prog_tests/tc_links.c
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,1583 @@ | ||
| // 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_links_basic(void) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 prog_ids[2], link_ids[2]; | ||
| __u32 pid1, pid2, lid1, lid2; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| int err; | ||
|
|
||
| skel = test_tc_link__open_and_load(); | ||
| if (!ASSERT_OK_PTR(skel, "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(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"); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(BPF_TCX_INGRESS, 1); | ||
| assert_mprog_count(BPF_TCX_EGRESS, 0); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_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; | ||
|
|
||
| ASSERT_EQ(optq.count, 1, "count"); | ||
| ASSERT_EQ(optq.revision, 2, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], 0, "link_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"); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
| ASSERT_NEQ(lid1, lid2, "link_ids_1_2"); | ||
|
|
||
| assert_mprog_count(BPF_TCX_INGRESS, 1); | ||
| assert_mprog_count(BPF_TCX_EGRESS, 1); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_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; | ||
|
|
||
| ASSERT_EQ(optq.count, 1, "count"); | ||
| ASSERT_EQ(optq.revision, 2, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], 0, "link_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: | ||
| test_tc_link__destroy(skel); | ||
|
|
||
| assert_mprog_count(BPF_TCX_INGRESS, 0); | ||
| assert_mprog_count(BPF_TCX_EGRESS, 0); | ||
| } | ||
|
|
||
| static void test_tc_links_before_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 prog_ids[5], link_ids[5]; | ||
| __u32 pid1, pid2, pid3, pid4; | ||
| __u32 lid1, lid2, lid3, lid4; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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"); | ||
| 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); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 3, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], 0, "link_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"); | ||
|
|
||
| skel->bss->seen_tc1 = false; | ||
| skel->bss->seen_tc2 = false; | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc2), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc3 = link; | ||
|
|
||
| lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3)); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_LINK, | ||
| .relative_id = lid1, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc4 = link; | ||
|
|
||
| lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4)); | ||
|
|
||
| assert_mprog_count(target, 4); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 4, "count"); | ||
| ASSERT_EQ(optq.revision, 5, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid4, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid4, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], pid3, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], lid3, "link_ids[2]"); | ||
| ASSERT_EQ(optq.prog_ids[3], pid2, "prog_ids[3]"); | ||
| ASSERT_EQ(optq.link_ids[3], lid2, "link_ids[3]"); | ||
| ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); | ||
| ASSERT_EQ(optq.link_ids[4], 0, "link_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: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_before(void) | ||
| { | ||
| test_tc_links_before_target(BPF_TCX_INGRESS); | ||
| test_tc_links_before_target(BPF_TCX_EGRESS); | ||
| } | ||
|
|
||
| static void test_tc_links_after_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 prog_ids[5], link_ids[5]; | ||
| __u32 pid1, pid2, pid3, pid4; | ||
| __u32 lid1, lid2, lid3, lid4; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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"); | ||
| 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); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 3, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], 0, "link_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"); | ||
|
|
||
| skel->bss->seen_tc1 = false; | ||
| skel->bss->seen_tc2 = false; | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc3 = link; | ||
|
|
||
| lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3)); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER | BPF_F_LINK, | ||
| .relative_fd = bpf_link__fd(skel->links.tc2), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc4 = link; | ||
|
|
||
| lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4)); | ||
|
|
||
| assert_mprog_count(target, 4); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 4, "count"); | ||
| ASSERT_EQ(optq.revision, 5, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid3, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid3, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], pid2, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], lid2, "link_ids[2]"); | ||
| ASSERT_EQ(optq.prog_ids[3], pid4, "prog_ids[3]"); | ||
| ASSERT_EQ(optq.link_ids[3], lid4, "link_ids[3]"); | ||
| ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); | ||
| ASSERT_EQ(optq.link_ids[4], 0, "link_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: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_after(void) | ||
| { | ||
| test_tc_links_after_target(BPF_TCX_INGRESS); | ||
| test_tc_links_after_target(BPF_TCX_EGRESS); | ||
| } | ||
|
|
||
| static void test_tc_links_revision_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 prog_ids[3], link_ids[3]; | ||
| __u32 pid1, pid2, lid1, lid2; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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); | ||
|
|
||
| optl.expected_revision = 1; | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| optl.expected_revision = 1; | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| optl.expected_revision = 2; | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 3, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_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"); | ||
| cleanup: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_revision(void) | ||
| { | ||
| test_tc_links_revision_target(BPF_TCX_INGRESS); | ||
| test_tc_links_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); | ||
| bool hook_created = false, tc_attached = false; | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 pid1, pid2, pid3; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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)); | ||
| pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3)); | ||
|
|
||
| ASSERT_NEQ(pid1, pid2, "prog_ids_1_2"); | ||
| ASSERT_NEQ(pid2, pid3, "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 = bpf_program__fd(skel->progs.tc3); | ||
| err = bpf_tc_attach(&tc_hook, &tc_opts); | ||
| if (!ASSERT_OK(err, "bpf_tc_attach")) | ||
| goto cleanup; | ||
| tc_attached = true; | ||
| } | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| 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_link__detach(skel->links.tc2); | ||
| if (!ASSERT_OK(err, "prog_detach")) | ||
| goto cleanup; | ||
|
|
||
| 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: | ||
| 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); | ||
| } | ||
| assert_mprog_count(target, 1); | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_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_links_replace_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 pid1, pid2, pid3, lid1, lid2; | ||
| __u32 prog_ids[4], link_ids[4]; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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"); | ||
| ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target), | ||
| 0, "tc3_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)); | ||
|
|
||
| ASSERT_NEQ(pid1, pid2, "prog_ids_1_2"); | ||
| ASSERT_NEQ(pid2, pid3, "prog_ids_2_3"); | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| optl.expected_revision = 1; | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| .relative_id = pid1, | ||
| .expected_revision = 2, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 3, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], 0, "link_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"); | ||
|
|
||
| skel->bss->seen_tc1 = false; | ||
| skel->bss->seen_tc2 = false; | ||
| skel->bss->seen_tc3 = false; | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_REPLACE, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc2), | ||
| .expected_revision = 3, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_REPLACE | BPF_F_LINK, | ||
| .relative_fd = bpf_link__fd(skel->links.tc2), | ||
| .expected_revision = 3, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_REPLACE | BPF_F_LINK | BPF_F_AFTER, | ||
| .relative_id = lid2, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| err = bpf_link__update_program(skel->links.tc2, skel->progs.tc3); | ||
| if (!ASSERT_OK(err, "link_update")) | ||
| goto cleanup; | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 4, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid3, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], 0, "link_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; | ||
|
|
||
| err = bpf_link__detach(skel->links.tc2); | ||
| if (!ASSERT_OK(err, "link_detach")) | ||
| goto cleanup; | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 1, "count"); | ||
| ASSERT_EQ(optq.revision, 5, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], 0, "link_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"); | ||
| ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); | ||
|
|
||
| skel->bss->seen_tc1 = false; | ||
| skel->bss->seen_tc2 = false; | ||
| skel->bss->seen_tc3 = false; | ||
|
|
||
| err = bpf_link__update_program(skel->links.tc1, skel->progs.tc1); | ||
| if (!ASSERT_OK(err, "link_update_self")) | ||
| goto cleanup; | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 1, "count"); | ||
| ASSERT_EQ(optq.revision, 5, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], 0, "link_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"); | ||
| ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3"); | ||
| cleanup: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_replace(void) | ||
| { | ||
| test_tc_links_replace_target(BPF_TCX_INGRESS); | ||
| test_tc_links_replace_target(BPF_TCX_EGRESS); | ||
| } | ||
|
|
||
| static void test_tc_links_invalid_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 pid1, pid2, lid1; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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); | ||
|
|
||
| optl.flags = BPF_F_BEFORE | BPF_F_AFTER; | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_ID, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER | BPF_F_ID, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_ID, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_LINK, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc2), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_LINK, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc2), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_AFTER, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc2), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_ID, | ||
| .relative_id = pid2, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_ID, | ||
| .relative_id = 42, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_LINK, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, 0, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER | BPF_F_LINK, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 0); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER | BPF_F_LINK, | ||
| .relative_fd = bpf_program__fd(skel->progs.tc1), | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_LINK | BPF_F_ID, | ||
| .relative_id = ~0, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_LINK | BPF_F_ID, | ||
| .relative_id = lid1, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_ID, | ||
| .relative_id = pid1, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) { | ||
| bpf_link__destroy(link); | ||
| goto cleanup; | ||
| } | ||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE | BPF_F_LINK | BPF_F_ID, | ||
| .relative_id = lid1, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| assert_mprog_count(target, 2); | ||
| cleanup: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_invalid(void) | ||
| { | ||
| test_tc_links_invalid_target(BPF_TCX_INGRESS); | ||
| test_tc_links_invalid_target(BPF_TCX_EGRESS); | ||
| } | ||
|
|
||
| static void test_tc_links_prepend_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 prog_ids[5], link_ids[5]; | ||
| __u32 pid1, pid2, pid3, pid4; | ||
| __u32 lid1, lid2, lid3, lid4; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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"); | ||
| 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); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 3, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], 0, "link_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"); | ||
|
|
||
| skel->bss->seen_tc1 = false; | ||
| skel->bss->seen_tc2 = false; | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc3 = link; | ||
|
|
||
| lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3)); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_BEFORE, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc4 = link; | ||
|
|
||
| lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4)); | ||
|
|
||
| assert_mprog_count(target, 4); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 4, "count"); | ||
| ASSERT_EQ(optq.revision, 5, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid4, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid4, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid3, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid3, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], pid2, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], lid2, "link_ids[2]"); | ||
| ASSERT_EQ(optq.prog_ids[3], pid1, "prog_ids[3]"); | ||
| ASSERT_EQ(optq.link_ids[3], lid1, "link_ids[3]"); | ||
| ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); | ||
| ASSERT_EQ(optq.link_ids[4], 0, "link_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: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_prepend(void) | ||
| { | ||
| test_tc_links_prepend_target(BPF_TCX_INGRESS); | ||
| test_tc_links_prepend_target(BPF_TCX_EGRESS); | ||
| } | ||
|
|
||
| static void test_tc_links_append_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| __u32 prog_ids[5], link_ids[5]; | ||
| __u32 pid1, pid2, pid3, pid4; | ||
| __u32 lid1, lid2, lid3, lid4; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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"); | ||
| 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); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1)); | ||
|
|
||
| assert_mprog_count(target, 1); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2)); | ||
|
|
||
| assert_mprog_count(target, 2); | ||
|
|
||
| optq.prog_ids = prog_ids; | ||
| optq.link_ids = link_ids; | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 2, "count"); | ||
| ASSERT_EQ(optq.revision, 3, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], 0, "link_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"); | ||
|
|
||
| skel->bss->seen_tc1 = false; | ||
| skel->bss->seen_tc2 = false; | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc3 = link; | ||
|
|
||
| lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3)); | ||
|
|
||
| LIBBPF_OPTS_RESET(optl, | ||
| .flags = BPF_F_AFTER, | ||
| ); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc4 = link; | ||
|
|
||
| lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4)); | ||
|
|
||
| assert_mprog_count(target, 4); | ||
|
|
||
| memset(prog_ids, 0, sizeof(prog_ids)); | ||
| memset(link_ids, 0, sizeof(link_ids)); | ||
| optq.count = ARRAY_SIZE(prog_ids); | ||
|
|
||
| err = bpf_prog_query_opts(loopback, target, &optq); | ||
| if (!ASSERT_OK(err, "prog_query")) | ||
| goto cleanup; | ||
|
|
||
| ASSERT_EQ(optq.count, 4, "count"); | ||
| ASSERT_EQ(optq.revision, 5, "revision"); | ||
| ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]"); | ||
| ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]"); | ||
| ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]"); | ||
| ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]"); | ||
| ASSERT_EQ(optq.prog_ids[2], pid3, "prog_ids[2]"); | ||
| ASSERT_EQ(optq.link_ids[2], lid3, "link_ids[2]"); | ||
| ASSERT_EQ(optq.prog_ids[3], pid4, "prog_ids[3]"); | ||
| ASSERT_EQ(optq.link_ids[3], lid4, "link_ids[3]"); | ||
| ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]"); | ||
| ASSERT_EQ(optq.link_ids[4], 0, "link_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: | ||
| test_tc_link__destroy(skel); | ||
| assert_mprog_count(target, 0); | ||
| } | ||
|
|
||
| void serial_test_tc_links_append(void) | ||
| { | ||
| test_tc_links_append_target(BPF_TCX_INGRESS); | ||
| test_tc_links_append_target(BPF_TCX_EGRESS); | ||
| } | ||
|
|
||
| static void test_tc_links_dev_cleanup_target(int target) | ||
| { | ||
| LIBBPF_OPTS(bpf_tcx_opts, optl); | ||
| LIBBPF_OPTS(bpf_prog_query_opts, optq); | ||
| __u32 pid1, pid2, pid3, pid4; | ||
| struct test_tc_link *skel; | ||
| struct bpf_link *link; | ||
| 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(); | ||
| 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); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc1, ifindex, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc1 = link; | ||
|
|
||
| assert_mprog_count_ifindex(ifindex, target, 1); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc2, ifindex, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc2 = link; | ||
|
|
||
| assert_mprog_count_ifindex(ifindex, target, 2); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc3, ifindex, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc3 = link; | ||
|
|
||
| assert_mprog_count_ifindex(ifindex, target, 3); | ||
|
|
||
| link = bpf_program__attach_tcx(skel->progs.tc4, ifindex, &optl); | ||
| if (!ASSERT_OK_PTR(link, "link_attach")) | ||
| goto cleanup; | ||
|
|
||
| skel->links.tc4 = link; | ||
|
|
||
| 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"); | ||
|
|
||
| ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc1)), 0, "tc1_ifindex"); | ||
| ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc2)), 0, "tc2_ifindex"); | ||
| ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc3)), 0, "tc3_ifindex"); | ||
| ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc4)), 0, "tc4_ifindex"); | ||
|
|
||
| test_tc_link__destroy(skel); | ||
| return; | ||
| 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_links_dev_cleanup(void) | ||
| { | ||
| test_tc_links_dev_cleanup_target(BPF_TCX_INGRESS); | ||
| test_tc_links_dev_cleanup_target(BPF_TCX_EGRESS); | ||
| } |