diff options
Diffstat (limited to 'tools/lib/bpf/libbpf.c')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index b607be7236d3..d6e62e90e8d4 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -2084,19 +2084,19 @@ void bpf_program__set_expected_attach_type(struct bpf_program *prog, prog->expected_attach_type = type; } -#define BPF_PROG_SEC_IMPL(string, ptype, eatype, atype) \ - { string, sizeof(string) - 1, ptype, eatype, atype } +#define BPF_PROG_SEC_IMPL(string, ptype, eatype, is_attachable, atype) \ + { string, sizeof(string) - 1, ptype, eatype, is_attachable, atype } /* Programs that can NOT be attached. */ -#define BPF_PROG_SEC(string, ptype) BPF_PROG_SEC_IMPL(string, ptype, 0, -EINVAL) +#define BPF_PROG_SEC(string, ptype) BPF_PROG_SEC_IMPL(string, ptype, 0, 0, 0) /* Programs that can be attached. */ #define BPF_APROG_SEC(string, ptype, atype) \ - BPF_PROG_SEC_IMPL(string, ptype, 0, atype) + BPF_PROG_SEC_IMPL(string, ptype, 0, 1, atype) /* Programs that must specify expected attach type at load time. */ #define BPF_EAPROG_SEC(string, ptype, eatype) \ - BPF_PROG_SEC_IMPL(string, ptype, eatype, eatype) + BPF_PROG_SEC_IMPL(string, ptype, eatype, 1, eatype) /* Programs that can be attached but attach type can't be identified by section * name. Kept for backward compatibility. @@ -2108,6 +2108,7 @@ static const struct { size_t len; enum bpf_prog_type prog_type; enum bpf_attach_type expected_attach_type; + int is_attachable; enum bpf_attach_type attach_type; } section_names[] = { BPF_PROG_SEC("socket", BPF_PROG_TYPE_SOCKET_FILTER), @@ -2198,7 +2199,7 @@ int libbpf_attach_type_by_name(const char *name, for (i = 0; i < ARRAY_SIZE(section_names); i++) { if (strncmp(name, section_names[i].sec, section_names[i].len)) continue; - if (section_names[i].attach_type == -EINVAL) + if (!section_names[i].is_attachable) return -EINVAL; *attach_type = section_names[i].attach_type; return 0; |