diff options
| author | Lakshmi Ramasubramanian <nramas@linux.microsoft.com> | 2019-12-11 17:47:03 +0100 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.ibm.com> | 2019-12-12 14:53:50 +0100 |
| commit | 5808611cccb28044940d04ebd303dc90f33b77b1 (patch) | |
| tree | 078c06ef373bfe2e252910c59060fd54e2e2e4c4 /security | |
| parent | IMA: Check IMA policy flag (diff) | |
| download | linux-5808611cccb28044940d04ebd303dc90f33b77b1.tar.xz linux-5808611cccb28044940d04ebd303dc90f33b77b1.zip | |
IMA: Add KEY_CHECK func to measure keys
Measure keys loaded onto any keyring.
This patch defines a new IMA policy func namely KEY_CHECK to
measure keys. Updated ima_match_rules() to check for KEY_CHECK
and ima_parse_rule() to handle KEY_CHECK.
Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/ima/ima.h | 1 | ||||
| -rw-r--r-- | security/integrity/ima/ima_policy.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h index df4ca482fb53..fe6c698617bd 100644 --- a/security/integrity/ima/ima.h +++ b/security/integrity/ima/ima.h @@ -193,6 +193,7 @@ static inline unsigned long ima_hash_key(u8 *digest) hook(KEXEC_INITRAMFS_CHECK) \ hook(POLICY_CHECK) \ hook(KEXEC_CMDLINE) \ + hook(KEY_CHECK) \ hook(MAX_CHECK) #define __ima_hook_enumify(ENUM) ENUM, diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index f19a895ad7cd..1525a28fd705 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -373,7 +373,7 @@ static bool ima_match_rules(struct ima_rule_entry *rule, struct inode *inode, { int i; - if (func == KEXEC_CMDLINE) { + if ((func == KEXEC_CMDLINE) || (func == KEY_CHECK)) { if ((rule->flags & IMA_FUNC) && (rule->func == func)) return true; return false; @@ -997,6 +997,8 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) entry->func = POLICY_CHECK; else if (strcmp(args[0].from, "KEXEC_CMDLINE") == 0) entry->func = KEXEC_CMDLINE; + else if (strcmp(args[0].from, "KEY_CHECK") == 0) + entry->func = KEY_CHECK; else result = -EINVAL; if (!result) |