1 files changed, 22 insertions, 4 deletions

diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index fdeae7b57319..18f69423a708 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -103,13 +103,31 @@ static inline void *ccid_priv(const struct ccid *ccid)
         return (void *)ccid->ccid_priv;
 }
 
+extern bool ccid_support_check(u8 const *ccid_array, u8 array_len);
+extern int  ccid_get_builtin_ccids(u8 **ccid_array, u8 *array_len);
+extern int  ccid_getsockopt_builtin_ccids(struct sock *sk, int len,
+                                          char __user *, int __user *);
+
 extern struct ccid *ccid_new(unsigned char id, struct sock *sk, int rx,
                              gfp_t gfp);
 
-extern struct ccid *ccid_hc_rx_new(unsigned char id, struct sock *sk,
-                                   gfp_t gfp);
-extern struct ccid *ccid_hc_tx_new(unsigned char id, struct sock *sk,
-                                   gfp_t gfp);
+static inline int ccid_get_current_rx_ccid(struct dccp_sock *dp)
+{
+        struct ccid *ccid = dp->dccps_hc_rx_ccid;
+
+        if (ccid == NULL || ccid->ccid_ops == NULL)
+                return -1;
+        return ccid->ccid_ops->ccid_id;
+}
+
+static inline int ccid_get_current_tx_ccid(struct dccp_sock *dp)
+{
+        struct ccid *ccid = dp->dccps_hc_tx_ccid;
+
+        if (ccid == NULL || ccid->ccid_ops == NULL)
+                return -1;
+        return ccid->ccid_ops->ccid_id;
+}
 
 extern void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
 extern void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);