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libbpf: Introduce libbpf_bpf_attach_type_str

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This change introduces a new function, libbpf_bpf_attach_type_str, to
the public libbpf API. The function allows users to get a string
representation for a bpf_attach_type variant.

Signed-off-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220523230428.3077108-8-deso@posteo.net
This commit is contained in:
Daniel Müller 2022-05-23 23:04:23 +00:00 • committed by Andrii Nakryiko
parent 2e98964bd6
commit ccde5760ba
3 changed files with 64 additions and 0 deletions
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54
tools/lib/bpf/libbpf.c
View file

@ -72,6 +72,52 @@
static struct bpf_map *bpf_object__add_map(struct bpf_object *obj);
static bool prog_is_subprog(const struct bpf_object *obj, const struct bpf_program *prog);
static const char * const attach_type_name[] = {
[BPF_CGROUP_INET_INGRESS] = "cgroup_inet_ingress",
[BPF_CGROUP_INET_EGRESS] = "cgroup_inet_egress",
[BPF_CGROUP_INET_SOCK_CREATE] = "cgroup_inet_sock_create",
[BPF_CGROUP_INET_SOCK_RELEASE] = "cgroup_inet_sock_release",
[BPF_CGROUP_SOCK_OPS] = "cgroup_sock_ops",
[BPF_CGROUP_DEVICE] = "cgroup_device",
[BPF_CGROUP_INET4_BIND] = "cgroup_inet4_bind",
[BPF_CGROUP_INET6_BIND] = "cgroup_inet6_bind",
[BPF_CGROUP_INET4_CONNECT] = "cgroup_inet4_connect",
[BPF_CGROUP_INET6_CONNECT] = "cgroup_inet6_connect",
[BPF_CGROUP_INET4_POST_BIND] = "cgroup_inet4_post_bind",
[BPF_CGROUP_INET6_POST_BIND] = "cgroup_inet6_post_bind",
[BPF_CGROUP_INET4_GETPEERNAME] = "cgroup_inet4_getpeername",
[BPF_CGROUP_INET6_GETPEERNAME] = "cgroup_inet6_getpeername",
[BPF_CGROUP_INET4_GETSOCKNAME] = "cgroup_inet4_getsockname",
[BPF_CGROUP_INET6_GETSOCKNAME] = "cgroup_inet6_getsockname",
[BPF_CGROUP_UDP4_SENDMSG] = "cgroup_udp4_sendmsg",
[BPF_CGROUP_UDP6_SENDMSG] = "cgroup_udp6_sendmsg",
[BPF_CGROUP_SYSCTL] = "cgroup_sysctl",
[BPF_CGROUP_UDP4_RECVMSG] = "cgroup_udp4_recvmsg",
[BPF_CGROUP_UDP6_RECVMSG] = "cgroup_udp6_recvmsg",
[BPF_CGROUP_GETSOCKOPT] = "cgroup_getsockopt",
[BPF_CGROUP_SETSOCKOPT] = "cgroup_setsockopt",
[BPF_SK_SKB_STREAM_PARSER] = "sk_skb_stream_parser",
[BPF_SK_SKB_STREAM_VERDICT] = "sk_skb_stream_verdict",
[BPF_SK_SKB_VERDICT] = "sk_skb_verdict",
[BPF_SK_MSG_VERDICT] = "sk_msg_verdict",
[BPF_LIRC_MODE2] = "lirc_mode2",
[BPF_FLOW_DISSECTOR] = "flow_dissector",
[BPF_TRACE_RAW_TP] = "trace_raw_tp",
[BPF_TRACE_FENTRY] = "trace_fentry",
[BPF_TRACE_FEXIT] = "trace_fexit",
[BPF_MODIFY_RETURN] = "modify_return",
[BPF_LSM_MAC] = "lsm_mac",
[BPF_SK_LOOKUP] = "sk_lookup",
[BPF_TRACE_ITER] = "trace_iter",
[BPF_XDP_DEVMAP] = "xdp_devmap",
[BPF_XDP_CPUMAP] = "xdp_cpumap",
[BPF_XDP] = "xdp",
[BPF_SK_REUSEPORT_SELECT] = "sk_reuseport_select",
[BPF_SK_REUSEPORT_SELECT_OR_MIGRATE] = "sk_reuseport_select_or_migrate",
[BPF_PERF_EVENT] = "perf_event",
[BPF_TRACE_KPROBE_MULTI] = "trace_kprobe_multi",
};
static const char * const map_type_name[] = {
[BPF_MAP_TYPE_UNSPEC] = "unspec",
[BPF_MAP_TYPE_HASH] = "hash",
@ -9369,6 +9415,14 @@ int libbpf_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type,
return libbpf_err(-ESRCH);
}
const char *libbpf_bpf_attach_type_str(enum bpf_attach_type t)
{
if (t < 0 || t >= ARRAY_SIZE(attach_type_name))
return NULL;
return attach_type_name[t];
}
const char *libbpf_bpf_map_type_str(enum bpf_map_type t)
{
if (t < 0 || t >= ARRAY_SIZE(map_type_name))