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Diffstat (limited to 'security/smack/smack_lsm.c')
-rw-r--r--security/smack/smack_lsm.c51
1 files changed, 33 insertions, 18 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index eefbd10e408f..8825375cc031 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -582,7 +582,7 @@ static void smack_inode_free_security(struct inode *inode)
* Returns 0 if it all works out, -ENOMEM if there's no memory
*/
static int smack_inode_init_security(struct inode *inode, struct inode *dir,
- const struct qstr *qstr, char **name,
+ const struct qstr *qstr, const char **name,
void **value, size_t *len)
{
struct inode_smack *issp = inode->i_security;
@@ -591,11 +591,8 @@ static int smack_inode_init_security(struct inode *inode, struct inode *dir,
char *dsp = smk_of_inode(dir);
int may;
- if (name) {
- *name = kstrdup(XATTR_SMACK_SUFFIX, GFP_NOFS);
- if (*name == NULL)
- return -ENOMEM;
- }
+ if (name)
+ *name = XATTR_SMACK_SUFFIX;
if (value) {
rcu_read_lock();
@@ -3065,6 +3062,8 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
{
struct smack_known *skp;
int found = 0;
+ int acat;
+ int kcat;
if ((sap->flags & NETLBL_SECATTR_MLS_LVL) != 0) {
/*
@@ -3081,12 +3080,28 @@ static struct smack_known *smack_from_secattr(struct netlbl_lsm_secattr *sap,
list_for_each_entry(skp, &smack_known_list, list) {
if (sap->attr.mls.lvl != skp->smk_netlabel.attr.mls.lvl)
continue;
- if (memcmp(sap->attr.mls.cat,
- skp->smk_netlabel.attr.mls.cat,
- SMK_CIPSOLEN) != 0)
- continue;
- found = 1;
- break;
+ /*
+ * Compare the catsets. Use the netlbl APIs.
+ */
+ if ((sap->flags & NETLBL_SECATTR_MLS_CAT) == 0) {
+ if ((skp->smk_netlabel.flags &
+ NETLBL_SECATTR_MLS_CAT) == 0)
+ found = 1;
+ break;
+ }
+ for (acat = -1, kcat = -1; acat == kcat; ) {
+ acat = netlbl_secattr_catmap_walk(
+ sap->attr.mls.cat, acat + 1);
+ kcat = netlbl_secattr_catmap_walk(
+ skp->smk_netlabel.attr.mls.cat,
+ kcat + 1);
+ if (acat < 0 || kcat < 0)
+ break;
+ }
+ if (acat == kcat) {
+ found = 1;
+ break;
+ }
}
rcu_read_unlock();
@@ -3877,12 +3892,12 @@ static __init void init_smack_known_list(void)
/*
* Create the known labels list
*/
- list_add(&smack_known_huh.list, &smack_known_list);
- list_add(&smack_known_hat.list, &smack_known_list);
- list_add(&smack_known_star.list, &smack_known_list);
- list_add(&smack_known_floor.list, &smack_known_list);
- list_add(&smack_known_invalid.list, &smack_known_list);
- list_add(&smack_known_web.list, &smack_known_list);
+ smk_insert_entry(&smack_known_huh);
+ smk_insert_entry(&smack_known_hat);
+ smk_insert_entry(&smack_known_star);
+ smk_insert_entry(&smack_known_floor);
+ smk_insert_entry(&smack_known_invalid);
+ smk_insert_entry(&smack_known_web);
}
/**