X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fdccp%2Finput.c;h=bfc53665516bf26a9d6066383c75ab21634fcd38;hb=cf0f02d04a830c8202e6a8f8bb37acc6c1629a91;hp=1b6b2cb12376ecb27edadcd81eb32ff0a4716a1b;hpb=98ed72deebfd2b55b7e1bb94c8175b1169999212;p=linux-2.6-omap-h63xx.git

diff --git a/net/dccp/input.c b/net/dccp/input.c
index 1b6b2cb1237..bfc53665516 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -32,7 +32,7 @@ static void dccp_fin(struct sock *sk, struct sk_buff *skb)
 
 static void dccp_rcv_close(struct sock *sk, struct sk_buff *skb)
 {
-	dccp_v4_send_reset(sk, DCCP_RESET_CODE_CLOSED);
+	dccp_send_reset(sk, DCCP_RESET_CODE_CLOSED);
 	dccp_fin(sk, skb);
 	dccp_set_state(sk, DCCP_CLOSED);
 	sk_wake_async(sk, 1, POLL_HUP);
@@ -56,11 +56,11 @@ static void dccp_rcv_closereq(struct sock *sk, struct sk_buff *skb)
 	dccp_send_close(sk, 0);
 }
 
-static inline void dccp_event_ack_recv(struct sock *sk, struct sk_buff *skb)
+static void dccp_event_ack_recv(struct sock *sk, struct sk_buff *skb)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 
-	if (dp->dccps_options.dccpo_send_ack_vector)
+	if (dccp_msk(sk)->dccpms_send_ack_vector)
 		dccp_ackvec_check_rcv_ackno(dp->dccps_hc_rx_ackvec, sk,
 					    DCCP_SKB_CB(skb)->dccpd_ack_seq);
 }
@@ -151,29 +151,11 @@ static int dccp_check_seqno(struct sock *sk, struct sk_buff *skb)
 	return 0;
 }
 
-int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
-			 const struct dccp_hdr *dh, const unsigned len)
+static int __dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
+				  const struct dccp_hdr *dh, const unsigned len)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 
-	if (dccp_check_seqno(sk, skb))
-		goto discard;
-
-	if (dccp_parse_options(sk, skb))
-		goto discard;
-
-	if (DCCP_SKB_CB(skb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
-		dccp_event_ack_recv(sk, skb);
-
-	if (dp->dccps_options.dccpo_send_ack_vector &&
-	    dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
-			    DCCP_SKB_CB(skb)->dccpd_seq,
-			    DCCP_ACKVEC_STATE_RECEIVED))
-		goto discard;
-
-	ccid_hc_rx_packet_recv(dp->dccps_hc_rx_ccid, sk, skb);
-	ccid_hc_tx_packet_recv(dp->dccps_hc_tx_ccid, sk, skb);
-
 	switch (dccp_hdr(skb)->dccph_type) {
 	case DCCP_PKT_DATAACK:
 	case DCCP_PKT_DATA:
@@ -250,6 +232,37 @@ discard:
 	return 0;
 }
 
+int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
+			 const struct dccp_hdr *dh, const unsigned len)
+{
+	struct dccp_sock *dp = dccp_sk(sk);
+
+	if (dccp_check_seqno(sk, skb))
+		goto discard;
+
+	if (dccp_parse_options(sk, skb))
+		goto discard;
+
+	if (DCCP_SKB_CB(skb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
+		dccp_event_ack_recv(sk, skb);
+
+	if (dccp_msk(sk)->dccpms_send_ack_vector &&
+	    dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
+			    DCCP_SKB_CB(skb)->dccpd_seq,
+			    DCCP_ACKVEC_STATE_RECEIVED))
+		goto discard;
+
+	ccid_hc_rx_packet_recv(dp->dccps_hc_rx_ccid, sk, skb);
+	ccid_hc_tx_packet_recv(dp->dccps_hc_tx_ccid, sk, skb);
+
+	return __dccp_rcv_established(sk, skb, dh, len);
+discard:
+	__kfree_skb(skb);
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(dccp_rcv_established);
+
 static int dccp_rcv_request_sent_state_process(struct sock *sk,
 					       struct sk_buff *skb,
 					       const struct dccp_hdr *dh,
@@ -286,6 +299,15 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
 			goto out_invalid_packet;
 		}
 
+		if (dccp_parse_options(sk, skb))
+			goto out_invalid_packet;
+
+                if (dccp_msk(sk)->dccpms_send_ack_vector &&
+                    dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
+                                    DCCP_SKB_CB(skb)->dccpd_seq,
+                                    DCCP_ACKVEC_STATE_RECEIVED))
+                        goto out_invalid_packet; /* FIXME: change error code */
+
 		dp->dccps_isr = DCCP_SKB_CB(skb)->dccpd_seq;
 		dccp_update_gsr(sk, dp->dccps_isr);
 		/*
@@ -301,15 +323,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
 		dccp_set_seqno(&dp->dccps_swl,
 			       max48(dp->dccps_swl, dp->dccps_isr));
 
-		if (ccid_hc_rx_init(dp->dccps_hc_rx_ccid, sk) != 0 ||
-		    ccid_hc_tx_init(dp->dccps_hc_tx_ccid, sk) != 0) {
-			ccid_hc_rx_exit(dp->dccps_hc_rx_ccid, sk);
-			ccid_hc_tx_exit(dp->dccps_hc_tx_ccid, sk);
-			/* FIXME: send appropriate RESET code */
-			goto out_invalid_packet;
-		}
-
-		dccp_sync_mss(sk, dp->dccps_pmtu_cookie);
+		dccp_sync_mss(sk, icsk->icsk_pmtu_cookie);
 
 		/*
 		 *    Step 10: Process REQUEST state (second part)
@@ -329,7 +343,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
 		dccp_set_state(sk, DCCP_PARTOPEN);
 
 		/* Make sure socket is routed, for correct metrics. */
-		inet_sk_rebuild_header(sk);
+		icsk->icsk_af_ops->rebuild_header(sk);
 
 		if (!sock_flag(sk, SOCK_DEAD)) {
 			sk->sk_state_change(sk);
@@ -375,6 +389,9 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
 	case DCCP_PKT_RESET:
 		inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
 		break;
+	case DCCP_PKT_DATA:
+		if (sk->sk_state == DCCP_RESPOND)
+			break;
 	case DCCP_PKT_DATAACK:
 	case DCCP_PKT_ACK:
 		/*
@@ -393,10 +410,11 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
 		dccp_sk(sk)->dccps_osr = DCCP_SKB_CB(skb)->dccpd_seq;
 		dccp_set_state(sk, DCCP_OPEN);
 
-		if (dh->dccph_type == DCCP_PKT_DATAACK) {
-			dccp_rcv_established(sk, skb, dh, len);
+		if (dh->dccph_type == DCCP_PKT_DATAACK ||
+		    dh->dccph_type == DCCP_PKT_DATA) {
+			__dccp_rcv_established(sk, skb, dh, len);
 			queued = 1; /* packet was queued
-				       (by dccp_rcv_established) */
+				       (by __dccp_rcv_established) */
 		}
 		break;
 	}
@@ -440,7 +458,8 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 	 */
 	if (sk->sk_state == DCCP_LISTEN) {
 		if (dh->dccph_type == DCCP_PKT_REQUEST) {
-			if (dccp_v4_conn_request(sk, skb) < 0)
+			if (inet_csk(sk)->icsk_af_ops->conn_request(sk,
+								    skb) < 0)
 				return 1;
 
 			/* FIXME: do congestion control initialization */
@@ -467,14 +486,14 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		if (dcb->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
 			dccp_event_ack_recv(sk, skb);
 
-		ccid_hc_rx_packet_recv(dp->dccps_hc_rx_ccid, sk, skb);
-		ccid_hc_tx_packet_recv(dp->dccps_hc_tx_ccid, sk, skb);
-
- 		if (dp->dccps_options.dccpo_send_ack_vector &&
+ 		if (dccp_msk(sk)->dccpms_send_ack_vector &&
 		    dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
  				    DCCP_SKB_CB(skb)->dccpd_seq,
  				    DCCP_ACKVEC_STATE_RECEIVED))
  			goto discard;
+
+		ccid_hc_rx_packet_recv(dp->dccps_hc_rx_ccid, sk, skb);
+		ccid_hc_tx_packet_recv(dp->dccps_hc_tx_ccid, sk, skb);
 	}
 
 	/*
@@ -562,3 +581,5 @@ discard:
 	}
 	return 0;
 }
+
+EXPORT_SYMBOL_GPL(dccp_rcv_state_process);