1 files changed, 145 insertions, 20 deletions

diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index fd9229db075c..b0e582f2d37a 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -619,8 +619,9 @@ int netlbl_enabled(void)
 }
 
 /**
- * netlbl_socket_setattr - Label a socket using the correct protocol
+ * netlbl_sock_setattr - Label a socket using the correct protocol
  * @sk: the socket to label
+ * @family: protocol family
  * @secattr: the security attributes
  *
  * Description:
@@ -633,29 +634,45 @@ int netlbl_enabled(void)
  *
  */
 int netlbl_sock_setattr(struct sock *sk,
+                        u16 family,
                         const struct netlbl_lsm_secattr *secattr)
 {
-        int ret_val = -ENOENT;
+        int ret_val;
         struct netlbl_dom_map *dom_entry;
 
         rcu_read_lock();
         dom_entry = netlbl_domhsh_getentry(secattr->domain);
-        if (dom_entry == NULL)
+        if (dom_entry == NULL) {
+                ret_val = -ENOENT;
                 goto socket_setattr_return;
-        switch (dom_entry->type) {
-        case NETLBL_NLTYPE_ADDRSELECT:
-                ret_val = -EDESTADDRREQ;
-                break;
-        case NETLBL_NLTYPE_CIPSOV4:
-                ret_val = cipso_v4_sock_setattr(sk,
-                                                dom_entry->type_def.cipsov4,
-                                                secattr);
+        }
+        switch (family) {
+        case AF_INET:
+                switch (dom_entry->type) {
+                case NETLBL_NLTYPE_ADDRSELECT:
+                        ret_val = -EDESTADDRREQ;
+                        break;
+                case NETLBL_NLTYPE_CIPSOV4:
+                        ret_val = cipso_v4_sock_setattr(sk,
+                                                    dom_entry->type_def.cipsov4,
+                                                    secattr);
+                        break;
+                case NETLBL_NLTYPE_UNLABELED:
+                        ret_val = 0;
+                        break;
+                default:
+                        ret_val = -ENOENT;
+                }
                 break;
-        case NETLBL_NLTYPE_UNLABELED:
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        case AF_INET6:
+                /* since we don't support any IPv6 labeling protocols right
+                 * now we can optimize everything away until we do */
                 ret_val = 0;
                 break;
+#endif /* IPv6 */
         default:
-                ret_val = -ENOENT;
+                ret_val = -EPROTONOSUPPORT;
         }
 
 socket_setattr_return:
@@ -689,9 +706,25 @@ void netlbl_sock_delattr(struct sock *sk)
  * on failure.
  *
  */
-int netlbl_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr)
+int netlbl_sock_getattr(struct sock *sk,
+                        struct netlbl_lsm_secattr *secattr)
 {
-        return cipso_v4_sock_getattr(sk, secattr);
+        int ret_val;
+
+        switch (sk->sk_family) {
+        case AF_INET:
+                ret_val = cipso_v4_sock_getattr(sk, secattr);
+                break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        case AF_INET6:
+                ret_val = -ENOMSG;
+                break;
+#endif /* IPv6 */
+        default:
+                ret_val = -EPROTONOSUPPORT;
+        }
+
+        return ret_val;
 }
 
 /**
@@ -748,7 +781,7 @@ int netlbl_conn_setattr(struct sock *sk,
                 break;
 #endif /* IPv6 */
         default:
-                ret_val = 0;
+                ret_val = -EPROTONOSUPPORT;
         }
 
 conn_setattr_return:
@@ -757,6 +790,90 @@ conn_setattr_return:
 }
 
 /**
+ * netlbl_req_setattr - Label a request socket using the correct protocol
+ * @req: the request socket to label
+ * @secattr: the security attributes
+ *
+ * Description:
+ * Attach the correct label to the given socket using the security attributes
+ * specified in @secattr.  Returns zero on success, negative values on failure.
+ *
+ */
+int netlbl_req_setattr(struct request_sock *req,
+                       const struct netlbl_lsm_secattr *secattr)
+{
+        int ret_val;
+        struct netlbl_dom_map *dom_entry;
+        struct netlbl_domaddr4_map *af4_entry;
+        u32 proto_type;
+        struct cipso_v4_doi *proto_cv4;
+
+        rcu_read_lock();
+        dom_entry = netlbl_domhsh_getentry(secattr->domain);
+        if (dom_entry == NULL) {
+                ret_val = -ENOENT;
+                goto req_setattr_return;
+        }
+        switch (req->rsk_ops->family) {
+        case AF_INET:
+                if (dom_entry->type == NETLBL_NLTYPE_ADDRSELECT) {
+                        struct inet_request_sock *req_inet = inet_rsk(req);
+                        af4_entry = netlbl_domhsh_getentry_af4(secattr->domain,
+                                                            req_inet->rmt_addr);
+                        if (af4_entry == NULL) {
+                                ret_val = -ENOENT;
+                                goto req_setattr_return;
+                        }
+                        proto_type = af4_entry->type;
+                        proto_cv4 = af4_entry->type_def.cipsov4;
+                } else {
+                        proto_type = dom_entry->type;
+                        proto_cv4 = dom_entry->type_def.cipsov4;
+                }
+                switch (proto_type) {
+                case NETLBL_NLTYPE_CIPSOV4:
+                        ret_val = cipso_v4_req_setattr(req, proto_cv4, secattr);
+                        break;
+                case NETLBL_NLTYPE_UNLABELED:
+                        /* just delete the protocols we support for right now
+                         * but we could remove other protocols if needed */
+                        cipso_v4_req_delattr(req);
+                        ret_val = 0;
+                        break;
+                default:
+                        ret_val = -ENOENT;
+                }
+                break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        case AF_INET6:
+                /* since we don't support any IPv6 labeling protocols right
+                 * now we can optimize everything away until we do */
+                ret_val = 0;
+                break;
+#endif /* IPv6 */
+        default:
+                ret_val = -EPROTONOSUPPORT;
+        }
+
+req_setattr_return:
+        rcu_read_unlock();
+        return ret_val;
+}
+
+/**
+* netlbl_req_delattr - Delete all the NetLabel labels on a socket
+* @req: the socket
+*
+* Description:
+* Remove all the NetLabel labeling from @req.
+*
+*/
+void netlbl_req_delattr(struct request_sock *req)
+{
+        cipso_v4_req_delattr(req);
+}
+
+/**
  * netlbl_skbuff_setattr - Label a packet using the correct protocol
  * @skb: the packet
  * @family: protocol family
@@ -808,7 +925,7 @@ int netlbl_skbuff_setattr(struct sk_buff *skb,
                 break;
 #endif /* IPv6 */
         default:
-                ret_val = 0;
+                ret_val = -EPROTONOSUPPORT;
         }
 
 skbuff_setattr_return:
@@ -833,9 +950,17 @@ int netlbl_skbuff_getattr(const struct sk_buff *skb,
                           u16 family,
                           struct netlbl_lsm_secattr *secattr)
 {
-        if (CIPSO_V4_OPTEXIST(skb) &&
-            cipso_v4_skbuff_getattr(skb, secattr) == 0)
-                return 0;
+        switch (family) {
+        case AF_INET:
+                if (CIPSO_V4_OPTEXIST(skb) &&
+                    cipso_v4_skbuff_getattr(skb, secattr) == 0)
+                        return 0;
+                break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        case AF_INET6:
+                break;
+#endif /* IPv6 */
+        }
 
         return netlbl_unlabel_getattr(skb, family, secattr);
 }