diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 43 | ||||
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 3 |
2 files changed, 28 insertions, 18 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 38ed3e92e393..42f31eff5f3f 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -2081,23 +2081,31 @@ static const struct { #undef BPF_S_PROG_SEC #undef BPF_SA_PROG_SEC -static int bpf_program__identify_section(struct bpf_program *prog) +int libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type, + enum bpf_attach_type *expected_attach_type) { int i; - if (!prog->section_name) - goto err; - - for (i = 0; i < ARRAY_SIZE(section_names); i++) - if (strncmp(prog->section_name, section_names[i].sec, - section_names[i].len) == 0) - return i; + if (!name) + return -EINVAL; -err: - pr_warning("failed to guess program type based on section name %s\n", - prog->section_name); + for (i = 0; i < ARRAY_SIZE(section_names); i++) { + if (strncmp(name, section_names[i].sec, section_names[i].len)) + continue; + *prog_type = section_names[i].prog_type; + *expected_attach_type = section_names[i].expected_attach_type; + return 0; + } + return -EINVAL; +} - return -1; +static int +bpf_program__identify_section(struct bpf_program *prog, + enum bpf_prog_type *prog_type, + enum bpf_attach_type *expected_attach_type) +{ + return libbpf_prog_type_by_name(prog->section_name, prog_type, + expected_attach_type); } int bpf_map__fd(struct bpf_map *map) @@ -2230,7 +2238,6 @@ int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr, enum bpf_prog_type prog_type; struct bpf_object *obj; struct bpf_map *map; - int section_idx; int err; if (!attr) @@ -2252,14 +2259,14 @@ int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr, prog->prog_ifindex = attr->ifindex; expected_attach_type = attr->expected_attach_type; if (prog_type == BPF_PROG_TYPE_UNSPEC) { - section_idx = bpf_program__identify_section(prog); - if (section_idx < 0) { + err = bpf_program__identify_section(prog, &prog_type, + &expected_attach_type); + if (err < 0) { + pr_warning("failed to guess program type based on section name %s\n", + prog->section_name); bpf_object__close(obj); return -EINVAL; } - prog_type = section_names[section_idx].prog_type; - expected_attach_type = - section_names[section_idx].expected_attach_type; } bpf_program__set_type(prog, prog_type); diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 564f4be9bae0..d1ce5c828e2e 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -92,6 +92,9 @@ int bpf_object__set_priv(struct bpf_object *obj, void *priv, bpf_object_clear_priv_t clear_priv); void *bpf_object__priv(struct bpf_object *prog); +int libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type, + enum bpf_attach_type *expected_attach_type); + /* Accessors of bpf_program */ struct bpf_program; struct bpf_program *bpf_program__next(struct bpf_program *prog, |