[PATCH 2/6] DCCP: Add setsocketopts for CCIDs

[Ian McDonald]

For faster restart and TFRCbis we need to pass socket options down to
CCIDs. Add framework in for this.

Signed-off-by: Ian McDonald <[EMAIL PROTECTED]>
---
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index c65cb24..65f91ba 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -65,6 +65,11 @@ struct ccid_operations {
                                                 const int optname, int len,
                                                 u32 __user *optval,
                                                 int __user *optlen);
+       int             (*ccid_hc_rx_setsockopt)(struct sock *sk,
+                               const int optname, int val, int optlen);
+       int             (*ccid_hc_tx_setsockopt)(struct sock *sk,
+                               const int optname, int val, int optlen);
+
 };
 
 extern int ccid_register(struct ccid_operations *ccid_ops);
@@ -187,4 +192,24 @@ static inline int ccid_hc_tx_getsockopt(struct ccid 
*ccid, struct sock *sk,
                                                 optval, optlen);
        return rc;
 }
+
+static inline int ccid_hc_rx_setsockopt(struct ccid*ccid, struct sock *sk,
+                               const int optname, int val, int optlen)
+{
+       int rc = -ENOPROTOOPT;
+       if (ccid->ccid_ops->ccid_hc_rx_setsockopt != NULL)
+               rc = ccid->ccid_ops->ccid_hc_rx_setsockopt(sk, optname,
+                                                val, optlen);
+       return rc;
+}
+
+static inline int ccid_hc_tx_setsockopt(struct ccid*ccid, struct sock *sk,
+                               const int optname, int val, int optlen)
+{
+       int rc = -ENOPROTOOPT;
+       if (ccid->ccid_ops->ccid_hc_tx_setsockopt != NULL)
+               rc = ccid->ccid_ops->ccid_hc_tx_setsockopt(sk, optname,
+                                                val, optlen);
+       return rc;
+}
 #endif /* _CCID_H */
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index fc5ffae..bd81176 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -526,6 +526,14 @@ static int do_dccp_setsockopt(struct sock *sk, int level, 
int optname,
                         * ChangeL(MinimumChecksumCoverage, val) */
                }
                break;
+       case 128 ... 191:
+               err = ccid_hc_rx_setsockopt(dp->dccps_hc_rx_ccid, sk, optname,
+                                            val, optlen);
+               break;
+       case 192 ... 255:
+               err = ccid_hc_tx_setsockopt(dp->dccps_hc_tx_ccid, sk, optname,
+                                            val, optlen);
+               break;
        default:
                err = -ENOPROTOOPT;
                break;
-
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