diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2016-05-13 19:08:30 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-17 09:35:30 +0100 |
| commit | 087a92287dbae61b4ee1e76d7c20c81710109422 (patch) | |
| tree | b6df7da9497957b39cb0954a5bfaaf65a19c18e2 /include | |
| parent | c18b1bda49334cbef67d5b9fedbbe20e28566088 (diff) | |
bpf: add bpf_patch_insn_single helper
commit c237ee5eb33bf19fe0591c04ff8db19da7323a83 upstream.
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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -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 ccb98b459c59..677fa3b42194 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -466,6 +466,9 @@ 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 typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size); |