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selftests/bpf: Test libbpf_{prog,attach}_type_by_name 

Add selftest for libbpf functions libbpf_prog_type_by_name and
libbpf_attach_type_by_name.

Example of output:
  % ./tools/testing/selftests/bpf/test_section_names
  Summary: 35 PASSED, 0 FAILED

Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Andrey Ignatov 2018-09-26 15:24:57 -07:00 committed by Daniel Borkmann
parent c9bf507d0a
commit 370920c47b
2 changed files with 209 additions and 1 deletions
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2
tools/testing/selftests/bpf/Makefile
View File

@ -23,7 +23,7 @@ $(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
test_sock test_btf test_sockmap test_lirc_mode2_user get_cgroup_id_user \
test_socket_cookie test_cgroup_storage test_select_reuseport
test_socket_cookie test_cgroup_storage test_select_reuseport test_section_names
TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
test_pkt_md_access.o test_xdp_redirect.o test_xdp_meta.o sockmap_parse_prog.o \

208
tools/testing/selftests/bpf/test_section_names.c Normal file
View File

@ -0,0 +1,208 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018 Facebook
#include <err.h>
#include <bpf/libbpf.h>
#include "bpf_util.h"
struct sec_name_test {
const char sec_name[32];
struct {
int rc;
enum bpf_prog_type prog_type;
enum bpf_attach_type expected_attach_type;
} expected_load;
struct {
int rc;
enum bpf_attach_type attach_type;
} expected_attach;
};
static struct sec_name_test tests[] = {
{"InvAliD", {-EINVAL, 0, 0}, {-EINVAL, 0} },
{"cgroup", {-EINVAL, 0, 0}, {-EINVAL, 0} },
{"socket", {0, BPF_PROG_TYPE_SOCKET_FILTER, 0}, {-EINVAL, 0} },
{"kprobe/", {0, BPF_PROG_TYPE_KPROBE, 0}, {-EINVAL, 0} },
{"kretprobe/", {0, BPF_PROG_TYPE_KPROBE, 0}, {-EINVAL, 0} },
{"classifier", {0, BPF_PROG_TYPE_SCHED_CLS, 0}, {-EINVAL, 0} },
{"action", {0, BPF_PROG_TYPE_SCHED_ACT, 0}, {-EINVAL, 0} },
{"tracepoint/", {0, BPF_PROG_TYPE_TRACEPOINT, 0}, {-EINVAL, 0} },
{
"raw_tracepoint/",
{0, BPF_PROG_TYPE_RAW_TRACEPOINT, 0},
{-EINVAL, 0},
},
{"xdp", {0, BPF_PROG_TYPE_XDP, 0}, {-EINVAL, 0} },
{"perf_event", {0, BPF_PROG_TYPE_PERF_EVENT, 0}, {-EINVAL, 0} },
{"lwt_in", {0, BPF_PROG_TYPE_LWT_IN, 0}, {-EINVAL, 0} },
{"lwt_out", {0, BPF_PROG_TYPE_LWT_OUT, 0}, {-EINVAL, 0} },
{"lwt_xmit", {0, BPF_PROG_TYPE_LWT_XMIT, 0}, {-EINVAL, 0} },
{"lwt_seg6local", {0, BPF_PROG_TYPE_LWT_SEG6LOCAL, 0}, {-EINVAL, 0} },
{
"cgroup_skb/ingress",
{0, BPF_PROG_TYPE_CGROUP_SKB, 0},
{0, BPF_CGROUP_INET_INGRESS},
},
{
"cgroup_skb/egress",
{0, BPF_PROG_TYPE_CGROUP_SKB, 0},
{0, BPF_CGROUP_INET_EGRESS},
},
{"cgroup/skb", {0, BPF_PROG_TYPE_CGROUP_SKB, 0}, {-EINVAL, 0} },
{
"cgroup/sock",
{0, BPF_PROG_TYPE_CGROUP_SOCK, 0},
{0, BPF_CGROUP_INET_SOCK_CREATE},
},
{
"cgroup/post_bind4",
{0, BPF_PROG_TYPE_CGROUP_SOCK, BPF_CGROUP_INET4_POST_BIND},
{0, BPF_CGROUP_INET4_POST_BIND},
},
{
"cgroup/post_bind6",
{0, BPF_PROG_TYPE_CGROUP_SOCK, BPF_CGROUP_INET6_POST_BIND},
{0, BPF_CGROUP_INET6_POST_BIND},
},
{
"cgroup/dev",
{0, BPF_PROG_TYPE_CGROUP_DEVICE, 0},
{0, BPF_CGROUP_DEVICE},
},
{"sockops", {0, BPF_PROG_TYPE_SOCK_OPS, 0}, {0, BPF_CGROUP_SOCK_OPS} },
{
"sk_skb/stream_parser",
{0, BPF_PROG_TYPE_SK_SKB, 0},
{0, BPF_SK_SKB_STREAM_PARSER},
},
{
"sk_skb/stream_verdict",
{0, BPF_PROG_TYPE_SK_SKB, 0},
{0, BPF_SK_SKB_STREAM_VERDICT},
},
{"sk_skb", {0, BPF_PROG_TYPE_SK_SKB, 0}, {-EINVAL, 0} },
{"sk_msg", {0, BPF_PROG_TYPE_SK_MSG, 0}, {0, BPF_SK_MSG_VERDICT} },
{"lirc_mode2", {0, BPF_PROG_TYPE_LIRC_MODE2, 0}, {0, BPF_LIRC_MODE2} },
{
"flow_dissector",
{0, BPF_PROG_TYPE_FLOW_DISSECTOR, 0},
{0, BPF_FLOW_DISSECTOR},
},
{
"cgroup/bind4",
{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_BIND},
{0, BPF_CGROUP_INET4_BIND},
},
{
"cgroup/bind6",
{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_BIND},
{0, BPF_CGROUP_INET6_BIND},
},
{
"cgroup/connect4",
{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_CONNECT},
{0, BPF_CGROUP_INET4_CONNECT},
},
{
"cgroup/connect6",
{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_CONNECT},
{0, BPF_CGROUP_INET6_CONNECT},
},
{
"cgroup/sendmsg4",
{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_SENDMSG},
{0, BPF_CGROUP_UDP4_SENDMSG},
},
{
"cgroup/sendmsg6",
{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP6_SENDMSG},
{0, BPF_CGROUP_UDP6_SENDMSG},
},
};
static int test_prog_type_by_name(const struct sec_name_test *test)
{
enum bpf_attach_type expected_attach_type;
enum bpf_prog_type prog_type;
int rc;
rc = libbpf_prog_type_by_name(test->sec_name, &prog_type,
&expected_attach_type);
if (rc != test->expected_load.rc) {
warnx("prog: unexpected rc=%d for %s", rc, test->sec_name);
return -1;
}
if (rc)
return 0;
if (prog_type != test->expected_load.prog_type) {
warnx("prog: unexpected prog_type=%d for %s", prog_type,
test->sec_name);
return -1;
}
if (expected_attach_type != test->expected_load.expected_attach_type) {
warnx("prog: unexpected expected_attach_type=%d for %s",
expected_attach_type, test->sec_name);
return -1;
}
return 0;
}
static int test_attach_type_by_name(const struct sec_name_test *test)
{
enum bpf_attach_type attach_type;
int rc;
rc = libbpf_attach_type_by_name(test->sec_name, &attach_type);
if (rc != test->expected_attach.rc) {
warnx("attach: unexpected rc=%d for %s", rc, test->sec_name);
return -1;
}
if (rc)
return 0;
if (attach_type != test->expected_attach.attach_type) {
warnx("attach: unexpected attach_type=%d for %s", attach_type,
test->sec_name);
return -1;
}
return 0;
}
static int run_test_case(const struct sec_name_test *test)
{
if (test_prog_type_by_name(test))
return -1;
if (test_attach_type_by_name(test))
return -1;
return 0;
}
static int run_tests(void)
{
int passes = 0;
int fails = 0;
int i;
for (i = 0; i < ARRAY_SIZE(tests); ++i) {
if (run_test_case(&tests[i]))
++fails;
else
++passes;
}
printf("Summary: %d PASSED, %d FAILED\n", passes, fails);
return fails ? -1 : 0;
}
int main(int argc, char **argv)
{
return run_tests();
}