Standardize string representation of prog types by putting commonly used
names to libbpf.
The prog_type to string mapping is taken from bpftool:
tools/bpf/bpftool/main.h
Signed-off-by: Julia Kartseva <hex@xxxxxx>
---
tools/lib/bpf/libbpf.c | 51 ++++++++++++++++++++++++++++++++++++++++
tools/lib/bpf/libbpf.h | 8 +++++++
tools/lib/bpf/libbpf.map | 2 ++
3 files changed, 61 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 72e6e5eb397f..946a4d41f223 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -296,6 +296,35 @@ struct bpf_object {
};
#define obj_elf_valid(o) ((o)->efile.elf)
+static const char *const prog_type_strs[] = {
+ [BPF_PROG_TYPE_UNSPEC] = "unspec",
+ [BPF_PROG_TYPE_SOCKET_FILTER] = "socket_filter",
+ [BPF_PROG_TYPE_KPROBE] = "kprobe",
+ [BPF_PROG_TYPE_SCHED_CLS] = "sched_cls",
+ [BPF_PROG_TYPE_SCHED_ACT] = "sched_act",
+ [BPF_PROG_TYPE_TRACEPOINT] = "tracepoint",
+ [BPF_PROG_TYPE_XDP] = "xdp",
+ [BPF_PROG_TYPE_PERF_EVENT] = "perf_event",
+ [BPF_PROG_TYPE_CGROUP_SKB] = "cgroup_skb",
+ [BPF_PROG_TYPE_CGROUP_SOCK] = "cgroup_sock",
+ [BPF_PROG_TYPE_LWT_IN] = "lwt_in",
+ [BPF_PROG_TYPE_LWT_OUT] = "lwt_out",
+ [BPF_PROG_TYPE_LWT_XMIT] = "lwt_xmit",
+ [BPF_PROG_TYPE_SOCK_OPS] = "sock_ops",
+ [BPF_PROG_TYPE_SK_SKB] = "sk_skb",
+ [BPF_PROG_TYPE_CGROUP_DEVICE] = "cgroup_device",
+ [BPF_PROG_TYPE_SK_MSG] = "sk_msg",
+ [BPF_PROG_TYPE_RAW_TRACEPOINT] = "raw_tracepoint",
+ [BPF_PROG_TYPE_CGROUP_SOCK_ADDR] = "cgroup_sock_addr",
+ [BPF_PROG_TYPE_LWT_SEG6LOCAL] = "lwt_seg6local",
+ [BPF_PROG_TYPE_LIRC_MODE2] = "lirc_mode2",
+ [BPF_PROG_TYPE_SK_REUSEPORT] = "sk_reuseport",
+ [BPF_PROG_TYPE_FLOW_DISSECTOR] = "flow_dissector",
+ [BPF_PROG_TYPE_CGROUP_SYSCTL] = "cgroup_sysctl",
+ [BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE] = "raw_tracepoint_writable",
+ [BPF_PROG_TYPE_CGROUP_SOCKOPT] = "cgroup_sockopt",
+};
+
void bpf_program__unload(struct bpf_program *prog)
{
int i;
@@ -4632,6 +4661,28 @@ int libbpf_attach_type_by_name(const char *name,
return -EINVAL;
}
+int libbpf_prog_type_from_str(const char *str, enum bpf_prog_type *type)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(prog_type_strs); i++)
+ if (prog_type_strs[i] && strcmp(prog_type_strs[i], str) == 0) {
+ *type = i;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+int libbpf_prog_type_to_str(enum bpf_prog_type type, const char **str)
+{
+ if (type < BPF_PROG_TYPE_UNSPEC || type >= ARRAY_SIZE(prog_type_strs))
+ return -EINVAL;
+
+ *str = prog_type_strs[type];
+ return 0;
+}
+
static int
bpf_program__identify_section(struct bpf_program *prog,
enum bpf_prog_type *prog_type,
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index e8f70977d137..6846c488d8a2 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -122,12 +122,20 @@ LIBBPF_API int bpf_object__set_priv(struct bpf_object *obj, void *priv,
bpf_object_clear_priv_t clear_priv);
LIBBPF_API void *bpf_object__priv(const struct bpf_object *prog);
+/* Program and expected attach types by section name */
LIBBPF_API int
libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type,
enum bpf_attach_type *expected_attach_type);
+/* Attach type by section name */
LIBBPF_API int libbpf_attach_type_by_name(const char *name,
enum bpf_attach_type *attach_type);
+/* String representation of program type */
+LIBBPF_API int libbpf_prog_type_from_str(const char *str,
+ enum bpf_prog_type *type);
+LIBBPF_API int libbpf_prog_type_to_str(enum bpf_prog_type type,
+ const char **str);
+
/* Accessors of bpf_program */
struct bpf_program;
LIBBPF_API struct bpf_program *bpf_program__next(struct bpf_program *prog,
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index 664ce8e7a60e..2ea7c99f1579 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -188,4 +188,6 @@ LIBBPF_0.0.4 {
LIBBPF_0.0.5 {
global:
bpf_btf_get_next_id;
+ libbpf_prog_type_from_str;
+ libbpf_prog_type_to_str;
} LIBBPF_0.0.4;
--
2.17.1
