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Diffstat (limited to 'security/integrity/ima/ima_policy.c')
-rw-r--r--security/integrity/ima/ima_policy.c32
1 files changed, 29 insertions, 3 deletions
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index ee4613fa5840..915f5572c6ff 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -40,6 +40,8 @@
#define APPRAISE 0x0004 /* same as IMA_APPRAISE */
#define DONT_APPRAISE 0x0008
#define AUDIT 0x0040
+#define HASH 0x0100
+#define DONT_HASH 0x0200
#define INVALID_PCR(a) (((a) < 0) || \
(a) >= (FIELD_SIZEOF(struct integrity_iint_cache, measured_pcrs) * 8))
@@ -380,8 +382,10 @@ int ima_match_policy(struct inode *inode, enum ima_hooks func, int mask,
action |= entry->flags & IMA_ACTION_FLAGS;
action |= entry->action & IMA_DO_MASK;
- if (entry->action & IMA_APPRAISE)
+ if (entry->action & IMA_APPRAISE) {
action |= get_subaction(entry, func);
+ action ^= IMA_HASH;
+ }
if (entry->action & IMA_DO_MASK)
actmask &= ~(entry->action | entry->action << 1);
@@ -521,7 +525,7 @@ enum {
Opt_err = -1,
Opt_measure = 1, Opt_dont_measure,
Opt_appraise, Opt_dont_appraise,
- Opt_audit,
+ Opt_audit, Opt_hash, Opt_dont_hash,
Opt_obj_user, Opt_obj_role, Opt_obj_type,
Opt_subj_user, Opt_subj_role, Opt_subj_type,
Opt_func, Opt_mask, Opt_fsmagic,
@@ -538,6 +542,8 @@ static match_table_t policy_tokens = {
{Opt_appraise, "appraise"},
{Opt_dont_appraise, "dont_appraise"},
{Opt_audit, "audit"},
+ {Opt_hash, "hash"},
+ {Opt_dont_hash, "dont_hash"},
{Opt_obj_user, "obj_user=%s"},
{Opt_obj_role, "obj_role=%s"},
{Opt_obj_type, "obj_type=%s"},
@@ -671,6 +677,22 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
entry->action = AUDIT;
break;
+ case Opt_hash:
+ ima_log_string(ab, "action", "hash");
+
+ if (entry->action != UNKNOWN)
+ result = -EINVAL;
+
+ entry->action = HASH;
+ break;
+ case Opt_dont_hash:
+ ima_log_string(ab, "action", "dont_hash");
+
+ if (entry->action != UNKNOWN)
+ result = -EINVAL;
+
+ entry->action = DONT_HASH;
+ break;
case Opt_func:
ima_log_string(ab, "func", args[0].from);
@@ -743,7 +765,7 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
case Opt_fsuuid:
ima_log_string(ab, "fsuuid", args[0].from);
- if (uuid_is_null(&entry->fsuuid)) {
+ if (!uuid_is_null(&entry->fsuuid)) {
result = -EINVAL;
break;
}
@@ -1040,6 +1062,10 @@ int ima_policy_show(struct seq_file *m, void *v)
seq_puts(m, pt(Opt_dont_appraise));
if (entry->action & AUDIT)
seq_puts(m, pt(Opt_audit));
+ if (entry->action & HASH)
+ seq_puts(m, pt(Opt_hash));
+ if (entry->action & DONT_HASH)
+ seq_puts(m, pt(Opt_dont_hash));
seq_puts(m, " ");