Commit 0badd331 authored Feb 07, 2018 by Quentin Monnet Committed by Daniel Borkmann Feb 08, 2018

libbpf: complete list of strings for guessing program type



It seems that the type guessing feature for libbpf, based on the name of
the ELF section the program is located in, was inspired from
samples/bpf/prog_load.c, which was not used by any sample for loading
programs of certain types such as TC actions and classifiers, or
LWT-related types. As a consequence, libbpf is not able to guess the
type of such programs and to load them automatically if type is not
provided to the `bpf_load_prog()` function.

Add ELF section names associated to those eBPF program types so that
they can be loaded with e.g. bpftool as well.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

parent b7d99235

tools/lib/bpf/libbpf.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1816,12 +1816,17 @@ static const struct {
		BPF_PROG_SEC("socket", BPF_PROG_TYPE_SOCKET_FILTER),
		BPF_PROG_SEC("kprobe/", BPF_PROG_TYPE_KPROBE),
		BPF_PROG_SEC("kretprobe/", BPF_PROG_TYPE_KPROBE),
		BPF_PROG_SEC("classifier", BPF_PROG_TYPE_SCHED_CLS),
		BPF_PROG_SEC("action", BPF_PROG_TYPE_SCHED_ACT),
		BPF_PROG_SEC("tracepoint/", BPF_PROG_TYPE_TRACEPOINT),
		BPF_PROG_SEC("xdp", BPF_PROG_TYPE_XDP),
		BPF_PROG_SEC("perf_event", BPF_PROG_TYPE_PERF_EVENT),
		BPF_PROG_SEC("cgroup/skb", BPF_PROG_TYPE_CGROUP_SKB),
		BPF_PROG_SEC("cgroup/sock", BPF_PROG_TYPE_CGROUP_SOCK),
		BPF_PROG_SEC("cgroup/dev", BPF_PROG_TYPE_CGROUP_DEVICE),
		BPF_PROG_SEC("lwt_in", BPF_PROG_TYPE_LWT_IN),
		BPF_PROG_SEC("lwt_out", BPF_PROG_TYPE_LWT_OUT),
		BPF_PROG_SEC("lwt_xmit", BPF_PROG_TYPE_LWT_XMIT),
		BPF_PROG_SEC("sockops", BPF_PROG_TYPE_SOCK_OPS),
		BPF_PROG_SEC("sk_skb", BPF_PROG_TYPE_SK_SKB),
		};

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