Standardize string representation of attach types by putting commonly used
names to libbpf.
The attach_type to string mapping is taken from bpftool:
tools/bpf/bpftool/cgroup.c
tools/bpf/bpftool/prog.c
Signed-off-by: Julia Kartseva <hex@xxxxxx>
---
tools/lib/bpf/libbpf.c | 50 ++++++++++++++++++++++++++++++++++++++++
tools/lib/bpf/libbpf.h | 5 ++++
tools/lib/bpf/libbpf.map | 2 ++
3 files changed, 57 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 9c531256888b..b5b07493655f 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -354,6 +354,32 @@ static const char *const map_type_strs[] = {
[BPF_MAP_TYPE_DEVMAP_HASH] = "devmap_hash"
};
+static const char *const attach_type_strs[] = {
+ [BPF_CGROUP_INET_INGRESS] = "ingress",
+ [BPF_CGROUP_INET_EGRESS] = "egress",
+ [BPF_CGROUP_INET_SOCK_CREATE] = "sock_create",
+ [BPF_CGROUP_SOCK_OPS] = "sock_ops",
+ [BPF_SK_SKB_STREAM_PARSER] = "stream_parser",
+ [BPF_SK_SKB_STREAM_VERDICT] = "stream_verdict",
+ [BPF_CGROUP_DEVICE] = "device",
+ [BPF_SK_MSG_VERDICT] = "msg_verdict",
+ [BPF_CGROUP_INET4_BIND] = "bind4",
+ [BPF_CGROUP_INET6_BIND] = "bind6",
+ [BPF_CGROUP_INET4_CONNECT] = "connect4",
+ [BPF_CGROUP_INET6_CONNECT] = "connect6",
+ [BPF_CGROUP_INET4_POST_BIND] = "post_bind4",
+ [BPF_CGROUP_INET6_POST_BIND] = "post_bind6",
+ [BPF_CGROUP_UDP4_SENDMSG] = "sendmsg4",
+ [BPF_CGROUP_UDP6_SENDMSG] = "sendmsg6",
+ [BPF_LIRC_MODE2] = "lirc_mode2",
+ [BPF_FLOW_DISSECTOR] = "flow_dissector",
+ [BPF_CGROUP_SYSCTL] = "sysctl",
+ [BPF_CGROUP_UDP4_RECVMSG] = "recvmsg4",
+ [BPF_CGROUP_UDP6_RECVMSG] = "recvmsg6",
+ [BPF_CGROUP_GETSOCKOPT] = "getsockopt",
+ [BPF_CGROUP_SETSOCKOPT] = "setsockopt"
+};
+
void bpf_program__unload(struct bpf_program *prog)
{
int i;
@@ -4734,6 +4760,30 @@ int libbpf_map_type_to_str(enum bpf_map_type type, const char **str)
return 0;
}
+int libbpf_attach_type_from_str(const char *str, enum bpf_attach_type *type)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(attach_type_strs); i++)
+ if (attach_type_strs[i] &&
+ strcmp(attach_type_strs[i], str) == 0) {
+ *type = i;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+int libbpf_attach_type_to_str(enum bpf_attach_type type, const char **str)
+{
+ if (type < BPF_CGROUP_INET_INGRESS ||
+ type >= ARRAY_SIZE(attach_type_strs))
+ return -EINVAL;
+
+ *str = attach_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 90daeb2cdefb..0ad941951b0d 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -139,6 +139,11 @@ LIBBPF_API int libbpf_prog_type_to_str(enum bpf_prog_type type,
LIBBPF_API int libbpf_map_type_from_str(const char *str,
enum bpf_map_type *type);
LIBBPF_API int libbpf_map_type_to_str(enum bpf_map_type type, const char **str);
+/* String representation of attach type */
+LIBBPF_API int libbpf_attach_type_from_str(const char *str,
+ enum bpf_attach_type *type);
+LIBBPF_API int libbpf_attach_type_to_str(enum bpf_attach_type type,
+ const char **str);
/* Accessors of bpf_program */
struct bpf_program;
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index e4ecf5414bb7..d87a6dc8a71f 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -192,4 +192,6 @@ LIBBPF_0.0.5 {
libbpf_prog_type_to_str;
libbpf_map_type_from_str;
libbpf_map_type_to_str;
+ libbpf_attach_type_from_str;
+ libbpf_attach_type_to_str;
} LIBBPF_0.0.4;
--
2.17.1
