diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2016-05-13 19:08:30 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-16 13:49:32 -0400 |
| commit | c237ee5eb33bf19fe0591c04ff8db19da7323a83 (patch) | |
| tree | 8db90add83d5becc20b69434523448970ec16351 /include/linux/filter.h | |
| parent | 93a73d442d370e20ed1009cd79cb29c4d7c0ee86 (diff) | |
| download | lwn-c237ee5eb33bf19fe0591c04ff8db19da7323a83.tar.gz lwn-c237ee5eb33bf19fe0591c04ff8db19da7323a83.zip | |
bpf: add bpf_patch_insn_single helper
Move the functionality to patch instructions out of the verifier
code and into the core as the new bpf_patch_insn_single() helper
will be needed later on for blinding as well. No changes in
functionality.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/filter.h')
| -rw-r--r-- | include/linux/filter.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index 4ff0e647598f..c4aae496f376 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -495,6 +495,9 @@ u64 __bpf_call_base(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5); void bpf_int_jit_compile(struct bpf_prog *fp); bool bpf_helper_changes_skb_data(void *func); +struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off, + const struct bpf_insn *patch, u32 len); + #ifdef CONFIG_BPF_JIT extern int bpf_jit_enable; |