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bpftool: bpf_link_get_from_fd support for LSM programs in lskel

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bpf_link_get_from_fd currently returns a NULL fd for LSM programs.
LSM programs are similar to tracing programs and can also use
skel_raw_tracepoint_open.

Signed-off-by: KP Singh <kpsingh@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220509214905.3754984-1-kpsingh@kernel.org
This commit is contained in:
KP Singh 2022-05-09 21:49:05 +00:00 • committed by Alexei Starovoitov
parent a82ebb093f
commit bd2331b375
1 changed files with 1 additions and 0 deletions
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1
tools/bpf/bpftool/gen.c
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@ -549,6 +549,7 @@ static void codegen_attach_detach(struct bpf_object *obj, const char *obj_name)
printf("\tint fd = skel_raw_tracepoint_open(\"%s\", prog_fd);\n", tp_name); printf("\tint fd = skel_raw_tracepoint_open(\"%s\", prog_fd);\n", tp_name);
break; break;
case BPF_PROG_TYPE_TRACING: case BPF_PROG_TYPE_TRACING:
case BPF_PROG_TYPE_LSM:
if (bpf_program__expected_attach_type(prog) == BPF_TRACE_ITER) if (bpf_program__expected_attach_type(prog) == BPF_TRACE_ITER)
printf("\tint fd = skel_link_create(prog_fd, 0, BPF_TRACE_ITER);\n"); printf("\tint fd = skel_link_create(prog_fd, 0, BPF_TRACE_ITER);\n");
else else