#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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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);
goto cleanup;
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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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 test_ns_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);
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");
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");
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");
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");
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");
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");
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 test_ns_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 test_ns_tc_opts_query_attach(void)
{
test_tc_opts_query_attach_target(BPF_TCX_INGRESS);
test_tc_opts_query_attach_target(BPF_TCX_EGRESS);
}
