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| author | David S. Miller <davem@davemloft.net> | 2017-01-17 15:19:37 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-17 15:19:37 -0500 |
| commit | 580bdf5650fff8f66468ce491f8308f1117b7074 (patch) | |
| tree | 3570ba1406f8cf492308d07cd88d3e53742a69f2 /kernel/bpf | |
| parent | e60a42635b764b56ae23c5fd8d36aac27c30f0ae (diff) | |
| parent | a249708bc2aa1fe3ddf15dfac22bee519d15996b (diff) | |
| download | linux-580bdf5650fff8f66468ce491f8308f1117b7074.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/core.c | 14 | ||||
| -rw-r--r-- | kernel/bpf/syscall.c | 8 | ||||
| -rw-r--r-- | kernel/bpf/verifier.c | 2 |
3 files changed, 13 insertions, 11 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 1eb4f1303756..503d4211988a 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -146,10 +146,11 @@ void __bpf_prog_free(struct bpf_prog *fp) vfree(fp); } -int bpf_prog_calc_digest(struct bpf_prog *fp) +int bpf_prog_calc_tag(struct bpf_prog *fp) { const u32 bits_offset = SHA_MESSAGE_BYTES - sizeof(__be64); - u32 raw_size = bpf_prog_digest_scratch_size(fp); + u32 raw_size = bpf_prog_tag_scratch_size(fp); + u32 digest[SHA_DIGEST_WORDS]; u32 ws[SHA_WORKSPACE_WORDS]; u32 i, bsize, psize, blocks; struct bpf_insn *dst; @@ -162,7 +163,7 @@ int bpf_prog_calc_digest(struct bpf_prog *fp) if (!raw) return -ENOMEM; - sha_init(fp->digest); + sha_init(digest); memset(ws, 0, sizeof(ws)); /* We need to take out the map fd for the digest calculation @@ -204,13 +205,14 @@ int bpf_prog_calc_digest(struct bpf_prog *fp) *bits = cpu_to_be64((psize - 1) << 3); while (blocks--) { - sha_transform(fp->digest, todo, ws); + sha_transform(digest, todo, ws); todo += SHA_MESSAGE_BYTES; } - result = (__force __be32 *)fp->digest; + result = (__force __be32 *)digest; for (i = 0; i < SHA_DIGEST_WORDS; i++) - result[i] = cpu_to_be32(fp->digest[i]); + result[i] = cpu_to_be32(digest[i]); + memcpy(fp->tag, result, sizeof(fp->tag)); vfree(raw); return 0; diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index e89acea22ecf..1d6b29e4e2c3 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -688,17 +688,17 @@ static int bpf_prog_release(struct inode *inode, struct file *filp) static void bpf_prog_show_fdinfo(struct seq_file *m, struct file *filp) { const struct bpf_prog *prog = filp->private_data; - char prog_digest[sizeof(prog->digest) * 2 + 1] = { }; + char prog_tag[sizeof(prog->tag) * 2 + 1] = { }; - bin2hex(prog_digest, prog->digest, sizeof(prog->digest)); + bin2hex(prog_tag, prog->tag, sizeof(prog->tag)); seq_printf(m, "prog_type:\t%u\n" "prog_jited:\t%u\n" - "prog_digest:\t%s\n" + "prog_tag:\t%s\n" "memlock:\t%llu\n", prog->type, prog->jited, - prog_digest, + prog_tag, prog->pages * 1ULL << PAGE_SHIFT); } #endif diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index d60e12c67266..8f69df7e8167 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -3016,7 +3016,7 @@ static int replace_map_fd_with_map_ptr(struct bpf_verifier_env *env) int insn_cnt = env->prog->len; int i, j, err; - err = bpf_prog_calc_digest(env->prog); + err = bpf_prog_calc_tag(env->prog); if (err) return err; |