X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Fudp.c;h=1560d11ba6ef99a17fc5e962396ef0d684f14128;hb=5c52ba170f8167511bdb65b981f4582100c40675;hp=11eabf136144cdb0b81d506933516803ba4e52d8;hpb=ebaac8c9a5b9e8aeab4009cefcfc1e9421337ac5;p=linux-2.6

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 11eabf1361..1560d11ba6 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -354,11 +354,12 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[])
 	struct sock *sk;
 	int harderr;
 	int err;
+	struct net *net = dev_net(skb->dev);
 
-	sk = __udp4_lib_lookup(dev_net(skb->dev), iph->daddr, uh->dest,
+	sk = __udp4_lib_lookup(net, iph->daddr, uh->dest,
 			iph->saddr, uh->source, skb->dev->ifindex, udptable);
 	if (sk == NULL) {
-		ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+		ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 		return;	/* No socket for error */
 	}
 
@@ -526,7 +527,8 @@ out:
 	up->len = 0;
 	up->pending = 0;
 	if (!err)
-		UDP_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk),
+				UDP_MIB_OUTDATAGRAMS, is_udplite);
 	return err;
 }
 
@@ -654,11 +656,13 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 				    .uli_u = { .ports =
 					       { .sport = inet->sport,
 						 .dport = dport } } };
+		struct net *net = sock_net(sk);
+
 		security_sk_classify_flow(sk, &fl);
-		err = ip_route_output_flow(sock_net(sk), &rt, &fl, sk, 1);
+		err = ip_route_output_flow(net, &rt, &fl, sk, 1);
 		if (err) {
 			if (err == -ENETUNREACH)
-				IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+				IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
 			goto out;
 		}
 
@@ -725,7 +729,8 @@ out:
 	 * seems like overkill.
 	 */
 	if (err == -ENOBUFS || test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) {
-		UDP_INC_STATS_USER(UDP_MIB_SNDBUFERRORS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk),
+				UDP_MIB_SNDBUFERRORS, is_udplite);
 	}
 	return err;
 
@@ -888,7 +893,8 @@ try_again:
 		goto out_free;
 
 	if (!peeked)
-		UDP_INC_STATS_USER(UDP_MIB_INDATAGRAMS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk),
+				UDP_MIB_INDATAGRAMS, is_udplite);
 
 	sock_recv_timestamp(msg, sk, skb);
 
@@ -917,7 +923,7 @@ out:
 csum_copy_err:
 	lock_sock(sk);
 	if (!skb_kill_datagram(sk, skb, flags))
-		UDP_INC_STATS_USER(UDP_MIB_INERRORS, is_udplite);
+		UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
 	release_sock(sk);
 
 	if (noblock)
@@ -988,7 +994,8 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
 
 			ret = (*up->encap_rcv)(sk, skb);
 			if (ret <= 0) {
-				UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS,
+				UDP_INC_STATS_BH(sock_net(sk),
+						 UDP_MIB_INDATAGRAMS,
 						 is_udplite);
 				return -ret;
 			}
@@ -1040,15 +1047,18 @@ int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
 
 	if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
 		/* Note that an ENOMEM error is charged twice */
-		if (rc == -ENOMEM)
-			UDP_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, is_udplite);
+		if (rc == -ENOMEM) {
+			UDP_INC_STATS_BH(sock_net(sk),
+					UDP_MIB_RCVBUFERRORS, is_udplite);
+			atomic_inc(&sk->sk_drops);
+		}
 		goto drop;
 	}
 
 	return 0;
 
 drop:
-	UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
+	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
 	kfree_skb(skb);
 	return -1;
 }
@@ -1156,7 +1166,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	struct rtable *rt = (struct rtable*)skb->dst;
 	__be32 saddr = ip_hdr(skb)->saddr;
 	__be32 daddr = ip_hdr(skb)->daddr;
-	struct net *net;
+	struct net *net = dev_net(skb->dev);
 
 	/*
 	 *  Validate the packet.
@@ -1178,7 +1188,6 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	if (udp4_csum_init(skb, uh, proto))
 		goto csum_error;
 
-	net = dev_net(skb->dev);
 	if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
 		return __udp4_lib_mcast_deliver(net, skb, uh,
 				saddr, daddr, udptable);
@@ -1212,7 +1221,7 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
 	if (udp_lib_checksum_complete(skb))
 		goto csum_error;
 
-	UDP_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+	UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
 
 	/*
@@ -1246,7 +1255,7 @@ csum_error:
 		       ntohs(uh->dest),
 		       ulen);
 drop:
-	UDP_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
+	UDP_INC_STATS_BH(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
 	kfree_skb(skb);
 	return 0;
 }
@@ -1453,7 +1462,8 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
 		spin_lock_bh(&rcvq->lock);
 		while ((skb = skb_peek(rcvq)) != NULL &&
 		       udp_lib_checksum_complete(skb)) {
-			UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_lite);
+			UDP_INC_STATS_BH(sock_net(sk),
+					UDP_MIB_INERRORS, is_lite);
 			__skb_unlink(skb, rcvq);
 			kfree_skb(skb);
 		}
@@ -1629,12 +1639,13 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 	__u16 srcp	  = ntohs(inet->sport);
 
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p%n",
+		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n",
 		bucket, src, srcp, dest, destp, sp->sk_state,
 		atomic_read(&sp->sk_wmem_alloc),
 		atomic_read(&sp->sk_rmem_alloc),
 		0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
-		atomic_read(&sp->sk_refcnt), sp, len);
+		atomic_read(&sp->sk_refcnt), sp,
+		atomic_read(&sp->sk_drops), len);
 }
 
 int udp4_seq_show(struct seq_file *seq, void *v)
@@ -1643,7 +1654,7 @@ int udp4_seq_show(struct seq_file *seq, void *v)
 		seq_printf(seq, "%-127s\n",
 			   "  sl  local_address rem_address   st tx_queue "
 			   "rx_queue tr tm->when retrnsmt   uid  timeout "
-			   "inode");
+			   "inode ref pointer drops");
 	else {
 		struct udp_iter_state *state = seq->private;
 		int len;