diff options
| -rw-r--r-- | include/linux/lsm_hooks.h | 32 | ||||
| -rw-r--r-- | security/security.c | 41 |
2 files changed, 41 insertions, 32 deletions
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 0a5b3b46fc2b..e36387f88083 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -135,38 +135,6 @@ * @secdata contains the security context. * @seclen contains the length of the security context. * - * Security hooks for Audit - * - * @audit_rule_init: - * Allocate and initialize an LSM audit rule structure. - * @field contains the required Audit action. - * Fields flags are defined in <include/linux/audit.h> - * @op contains the operator the rule uses. - * @rulestr contains the context where the rule will be applied to. - * @lsmrule contains a pointer to receive the result. - * Return 0 if @lsmrule has been successfully set, - * -EINVAL in case of an invalid rule. - * - * @audit_rule_known: - * Specifies whether given @krule contains any fields related to - * current LSM. - * @krule contains the audit rule of interest. - * Return 1 in case of relation found, 0 otherwise. - * - * @audit_rule_match: - * Determine if given @secid matches a rule previously approved - * by @audit_rule_known. - * @secid contains the security id in question. - * @field contains the field which relates to current LSM. - * @op contains the operator that will be used for matching. - * @lrule points to the audit rule that will be checked against. - * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. - * - * @audit_rule_free: - * Deallocate the LSM audit rule structure previously allocated by - * audit_rule_init. - * @lsmrule contains the allocated rule. - * * @inode_invalidate_secctx: * Notify the security module that it must revalidate the security context * of an inode. diff --git a/security/security.c b/security/security.c index b21154ed152f..80c05c28b7ff 100644 --- a/security/security.c +++ b/security/security.c @@ -4762,21 +4762,62 @@ int security_key_getsecurity(struct key *key, char **_buffer) #ifdef CONFIG_AUDIT +/** + * security_audit_rule_init() - Allocate and init an LSM audit rule struct + * @field: audit action + * @op: rule operator + * @rulestr: rule context + * @lsmrule: receive buffer for audit rule struct + * + * Allocate and initialize an LSM audit rule structure. + * + * Return: Return 0 if @lsmrule has been successfully set, -EINVAL in case of + * an invalid rule. + */ int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) { return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule); } +/** + * security_audit_rule_known() - Check if an audit rule contains LSM fields + * @krule: audit rule + * + * Specifies whether given @krule contains any fields related to the current + * LSM. + * + * Return: Returns 1 in case of relation found, 0 otherwise. + */ int security_audit_rule_known(struct audit_krule *krule) { return call_int_hook(audit_rule_known, 0, krule); } +/** + * security_audit_rule_free() - Free an LSM audit rule struct + * @lsmrule: audit rule struct + * + * Deallocate the LSM audit rule structure previously allocated by + * audit_rule_init(). + */ void security_audit_rule_free(void *lsmrule) { call_void_hook(audit_rule_free, lsmrule); } +/** + * security_audit_rule_match() - Check if a label matches an audit rule + * @secid: security label + * @field: LSM audit field + * @op: matching operator + * @lsmrule: audit rule + * + * Determine if given @secid matches a rule previously approved by + * security_audit_rule_known(). + * + * Return: Returns 1 if secid matches the rule, 0 if it does not, -ERRNO on + * failure. + */ int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule) { return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule); |