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authorRoberto Sassu <roberto.sassu@polito.it>2013-11-08 19:21:37 +0100
committerMimi Zohar <zohar@linux.vnet.ibm.com>2014-01-03 07:43:00 -0500
commitdcf4e392867bf98d50ad108ed7c2bfb941e8c33d (patch)
tree25f5668c6acf31bcb593937acac3673b350a942e /security
parentef8894b0ca3f123bd68dd748b162369ccbeca4a7 (diff)
downloadlinux-dcf4e392867bf98d50ad108ed7c2bfb941e8c33d.tar.gz
ima: remove unneeded size_limit argument from ima_eventdigest_init_common()
This patch removes the 'size_limit' argument from ima_eventdigest_init_common(). Since the 'd' field will never include the hash algorithm as prefix and the 'd-ng' will always have it, we can use the hash algorithm to differentiate the two cases in the modified function (it is equal to HASH_ALGO__LAST in the first case, the opposite in the second). Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security')
-rw-r--r--security/integrity/ima/ima_template_lib.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index 4752a539f69..6d01c694a32 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -158,8 +158,7 @@ void ima_show_template_sig(struct seq_file *m, enum ima_show_type show,
}
static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
- struct ima_field_data *field_data,
- bool size_limit)
+ struct ima_field_data *field_data)
{
/*
* digest formats:
@@ -172,11 +171,10 @@ static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
enum data_formats fmt = DATA_FMT_DIGEST;
u32 offset = 0;
- if (!size_limit) {
+ if (hash_algo < HASH_ALGO__LAST) {
fmt = DATA_FMT_DIGEST_WITH_ALGO;
- if (hash_algo < HASH_ALGO__LAST)
- offset += snprintf(buffer, CRYPTO_MAX_ALG_NAME + 1,
- "%s", hash_algo_name[hash_algo]);
+ offset += snprintf(buffer, CRYPTO_MAX_ALG_NAME + 1, "%s",
+ hash_algo_name[hash_algo]);
buffer[offset] = ':';
offset += 2;
}
@@ -240,7 +238,7 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
cur_digestsize = hash.hdr.length;
out:
return ima_eventdigest_init_common(cur_digest, cur_digestsize,
- HASH_ALGO__LAST, field_data, true);
+ HASH_ALGO__LAST, field_data);
}
/*
@@ -264,7 +262,7 @@ int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
hash_algo = iint->ima_hash->algo;
out:
return ima_eventdigest_init_common(cur_digest, cur_digestsize,
- hash_algo, field_data, false);
+ hash_algo, field_data);
}
static int ima_eventname_init_common(struct integrity_iint_cache *iint,