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bpf: allow socket_filter programs to use bpf_prog_test_run

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in order to improve test coverage allow socket_filter program type
to be run via bpf_prog_test_run command.
Since such programs can be loaded by non-root tighten
permissions for bpf_prog_test_run to be root only
to avoid surprises.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Alexei Starovoitov 2018-01-17 16:52:02 -08:00 • committed by Daniel Borkmann
parent e7b2823a58
commit 61f3c964df
2 changed files with 3 additions and 0 deletions
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2
kernel/bpf/syscall.c
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@ -1504,6 +1504,8 @@ static int bpf_prog_test_run(const union bpf_attr *attr,
struct bpf_prog *prog;
int ret = -ENOTSUPP;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (CHECK_ATTR(BPF_PROG_TEST_RUN))
return -EINVAL;

1
net/core/filter.c
View file

@ -4526,6 +4526,7 @@ const struct bpf_verifier_ops sk_filter_verifier_ops = {
};
const struct bpf_prog_ops sk_filter_prog_ops = {
.test_run = bpf_prog_test_run_skb,
};
const struct bpf_verifier_ops tc_cls_act_verifier_ops = {