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ima-evm-utils: beautify the code to make it more readable

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Use enum type instead of hard-coded numbers to improve code readability.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Tianjia Zhang 2020-07-09 11:34:15 +08:00 committed by Mimi Zohar
parent fb19ae86db
commit 15659747eb
1 changed files with 3 additions and 3 deletions
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6
src/libimaevm.c
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@ -579,7 +579,7 @@ int imaevm_hash_algo_from_sig(unsigned char *sig)
{
uint8_t hashalgo;
if (sig[0] == 1) {
if (sig[0] == DIGSIG_VERSION_1) {
hashalgo = ((struct signature_hdr *)sig)->hash;
if (hashalgo >= DIGEST_ALGO_MAX)
@ -593,7 +593,7 @@ int imaevm_hash_algo_from_sig(unsigned char *sig)
default:
return -1;
}
} else if (sig[0] == 2) {
} else if (sig[0] == DIGSIG_VERSION_2) {
hashalgo = ((struct signature_v2_hdr *)sig)->hash_algo;
if (hashalgo >= PKEY_HASH__LAST)
return -1;
@ -627,7 +627,7 @@ int ima_verify_signature(const char *file, unsigned char *sig, int siglen,
unsigned char hash[MAX_DIGEST_SIZE];
int hashlen, sig_hash_algo;
if (sig[0] != 0x03) {
if (sig[0] != EVM_IMA_XATTR_DIGSIG) {
log_err("%s: xattr ima has no signature\n", file);
return -1;
}