diff options
Diffstat (limited to 'security/smack/smack_lsm.c')
| -rw-r--r-- | security/smack/smack_lsm.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index ce000a81caf7..19204e11c02c 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3066,6 +3066,8 @@ 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) { /* @@ -3082,12 +3084,28 @@ 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(); |