1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2023 Isovalent */
3 #ifndef TC_HELPERS
4 #define TC_HELPERS
5 #include <test_progs.h>
6
7 #ifndef loopback
8 # define loopback 1
9 #endif
10
id_from_prog_fd(int fd)11 static inline __u32 id_from_prog_fd(int fd)
12 {
13 struct bpf_prog_info prog_info = {};
14 __u32 prog_info_len = sizeof(prog_info);
15 int err;
16
17 err = bpf_obj_get_info_by_fd(fd, &prog_info, &prog_info_len);
18 if (!ASSERT_OK(err, "id_from_prog_fd"))
19 return 0;
20
21 ASSERT_NEQ(prog_info.id, 0, "prog_info.id");
22 return prog_info.id;
23 }
24
id_from_link_fd(int fd)25 static inline __u32 id_from_link_fd(int fd)
26 {
27 struct bpf_link_info link_info = {};
28 __u32 link_info_len = sizeof(link_info);
29 int err;
30
31 err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len);
32 if (!ASSERT_OK(err, "id_from_link_fd"))
33 return 0;
34
35 ASSERT_NEQ(link_info.id, 0, "link_info.id");
36 return link_info.id;
37 }
38
ifindex_from_link_fd(int fd)39 static inline __u32 ifindex_from_link_fd(int fd)
40 {
41 struct bpf_link_info link_info = {};
42 __u32 link_info_len = sizeof(link_info);
43 int err;
44
45 err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len);
46 if (!ASSERT_OK(err, "id_from_link_fd"))
47 return 0;
48
49 return link_info.tcx.ifindex;
50 }
51
__assert_mprog_count(int target,int expected,int ifindex)52 static inline void __assert_mprog_count(int target, int expected, int ifindex)
53 {
54 __u32 count = 0, attach_flags = 0;
55 int err;
56
57 err = bpf_prog_query(ifindex, target, 0, &attach_flags,
58 NULL, &count);
59 ASSERT_EQ(count, expected, "count");
60 ASSERT_EQ(err, 0, "prog_query");
61 }
62
assert_mprog_count(int target,int expected)63 static inline void assert_mprog_count(int target, int expected)
64 {
65 __assert_mprog_count(target, expected, loopback);
66 }
67
assert_mprog_count_ifindex(int ifindex,int target,int expected)68 static inline void assert_mprog_count_ifindex(int ifindex, int target, int expected)
69 {
70 __assert_mprog_count(target, expected, ifindex);
71 }
72
tc_skel_reset_all_seen(struct test_tc_link * skel)73 static inline void tc_skel_reset_all_seen(struct test_tc_link *skel)
74 {
75 memset(skel->bss, 0, sizeof(*skel->bss));
76 }
77
78 #endif /* TC_HELPERS */
79