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Message-ID: <tencent_7DD02046A8398BE3324F85E0F56ED41EB105@qq.com>
Date: Sat, 29 Oct 2022 15:53:12 +0800
From: Rong Tao <rtoax@...mail.com>
To: andrii.nakryiko@...il.com
Cc: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
daniel@...earbox.net, haoluo@...gle.com, john.fastabend@...il.com,
jolsa@...nel.org, kpsingh@...nel.org, linux-kernel@...r.kernel.org,
martin.lau@...ux.dev, rongtao@...tc.cn, rtoax@...mail.com,
sdf@...gle.com, song@...nel.org, yhs@...com
Subject: [PATCH bpf-next] samples/bpf: Fix sockex3: missing BPF prog type
From: Rong Tao <rongtao@...tc.cn>
since commit 450b167fb9be("libbpf: clean up SEC() handling"),
sec_def_matches() does not recognize "socket/xxx" as "socket", therefore,
the BPF program type is not recognized, set "socket/xxx" to SOCKET_FILTER
solves this error.
$ cd samples/bpf
$ sudo ./sockex3
libbpf: prog 'bpf_func_PARSE_IP': missing BPF prog type, check ELF section name 'socket/3'
libbpf: prog 'bpf_func_PARSE_IP': failed to load: -22
libbpf: failed to load object './sockex3_kern.o'
ERROR: loading BPF object file failed
Signed-off-by: Rong Tao <rongtao@...tc.cn>
---
samples/bpf/sockex3_user.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/samples/bpf/sockex3_user.c b/samples/bpf/sockex3_user.c
index cd6fa79df900..dc79c17ad195 100644
--- a/samples/bpf/sockex3_user.c
+++ b/samples/bpf/sockex3_user.c
@@ -39,6 +39,9 @@ int main(int argc, char **argv)
return 0;
}
+ bpf_object__for_each_program(prog, obj)
+ bpf_program__set_type(prog, BPF_PROG_TYPE_SOCKET_FILTER);
+
/* load BPF program */
if (bpf_object__load(obj)) {
fprintf(stderr, "ERROR: loading BPF object file failed\n");
--
2.31.1
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