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| author | Alexei Starovoitov <ast@plumgrid.com> | 2014-09-26 00:17:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-26 15:05:14 -0400 |
| commit | 51580e798cb61b0fc63fa3aa6c5c975375aa0550 (patch) | |
| tree | 2b608f048ba6415a28be79135af26f28ba7ebd5b /include | |
| parent | 0a542a86d73b1577e7d4f55fc95dcffd3fe62643 (diff) | |
| download | linux-51580e798cb61b0fc63fa3aa6c5c975375aa0550.tar.gz | |
bpf: verifier (add docs)
this patch adds all of eBPF verfier documentation and empty bpf_check() The end goal for the verifier is to statically check safety of the program. Verifier will catch: - loops - out of range jumps - unreachable instructions - invalid instructions - uninitialized register access - uninitialized stack access - misaligned stack access - out of range stack access - invalid calling convention More details in Documentation/networking/filter.txt Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 92979182be81..9dfeb36f8971 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -83,5 +83,7 @@ struct bpf_prog_aux { void bpf_prog_put(struct bpf_prog *prog); struct bpf_prog *bpf_prog_get(u32 ufd); +/* verify correctness of eBPF program */ +int bpf_check(struct bpf_prog *fp, union bpf_attr *attr); #endif /* _LINUX_BPF_H */ |