Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6] / net / dccp / ipv4.c

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 11d0b8589aa7f413140ef2ca44b4ac897cf82206..2622ace17c467d528efbc41de9705a5b4d4ec49e 100644 (file)
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -32,7 +32,7 @@
 #include "feat.h"
 
 /*
- * The dccp_ctl_sk is the global socket data structure used for responding to
+ * The per-net dccp.v4_ctl_sk socket is used for responding to
  * the Out-of-the-blue (OOTB) packets. A control sock will be created
  * for this socket at the initialization time.
  */
@@ -205,16 +205,18 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
        struct sock *sk;
        __u64 seq;
        int err;
+       struct net *net = dev_net(skb->dev);
 
        if (skb->len < (iph->ihl << 2) + 8) {
-               ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+               ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
                return;
        }
 
-       sk = inet_lookup(&init_net, &dccp_hashinfo, iph->daddr, dh->dccph_dport,
-                        iph->saddr, dh->dccph_sport, inet_iif(skb));
+       sk = inet_lookup(net, &dccp_hashinfo,
+                       iph->daddr, dh->dccph_dport,
+                       iph->saddr, dh->dccph_sport, inet_iif(skb));
        if (sk == NULL) {
-               ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
+               ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
                return;
        }
 
@@ -228,7 +230,7 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
         * servers this needs to be solved differently.
         */
        if (sock_owned_by_user(sk))
-               NET_INC_STATS_BH(LINUX_MIB_LOCKDROPPEDICMPS);
+               NET_INC_STATS_BH(net, LINUX_MIB_LOCKDROPPEDICMPS);
 
        if (sk->sk_state == DCCP_CLOSED)
                goto out;
@@ -237,7 +239,7 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
        seq = dccp_hdr_seq(dh);
        if ((1 << sk->sk_state) & ~(DCCPF_REQUESTING | DCCPF_LISTEN) &&
            !between48(seq, dp->dccps_swl, dp->dccps_swh)) {
-               NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
+               NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
                goto out;
        }
 
@@ -284,7 +286,7 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
                BUG_TRAP(!req->sk);
 
                if (seq != dccp_rsk(req)->dreq_iss) {
-                       NET_INC_STATS_BH(LINUX_MIB_OUTOFWINDOWICMPS);
+                       NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
                        goto out;
                }
                /*
@@ -407,9 +409,9 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
        return newsk;
 
 exit_overflow:
-       NET_INC_STATS_BH(LINUX_MIB_LISTENOVERFLOWS);
+       NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS);
 exit:
-       NET_INC_STATS_BH(LINUX_MIB_LISTENDROPS);
+       NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS);
        dst_release(dst);
        return NULL;
 }
@@ -429,7 +431,7 @@ static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
        if (req != NULL)
                return dccp_check_req(sk, skb, req, prev);
 
-       nsk = inet_lookup_established(&init_net, &dccp_hashinfo,
+       nsk = inet_lookup_established(sock_net(sk), &dccp_hashinfo,
                                      iph->saddr, dh->dccph_sport,
                                      iph->daddr, dh->dccph_dport,
                                      inet_iif(skb));
@@ -463,7 +465,7 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk,
 
        security_skb_classify_flow(skb, &fl);
        if (ip_route_output_flow(net, &rt, &fl, sk, 0)) {
-               IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
+               IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
                return NULL;
        }
 
@@ -487,7 +489,6 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req)
 
                dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->loc_addr,
                                                              ireq->rmt_addr);
-               memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
                err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
                                            ireq->rmt_addr,
                                            ireq->opt);
@@ -589,7 +590,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
        if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
                goto drop;
 
-       req = reqsk_alloc(&dccp_request_sock_ops);
+       req = inet_reqsk_alloc(&dccp_request_sock_ops);
        if (req == NULL)
                goto drop;
 
@@ -605,7 +606,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
        ireq = inet_rsk(req);
        ireq->loc_addr = ip_hdr(skb)->daddr;
        ireq->rmt_addr = ip_hdr(skb)->saddr;
-       ireq->opt       = NULL;
 
        /*
         * Step 3: Process LISTEN state
@@ -739,8 +739,8 @@ int dccp_invalid_packet(struct sk_buff *skb)
         * If P.type is not Data, Ack, or DataAck and P.X == 0 (the packet
         * has short sequence numbers), drop packet and return
         */
-       if (dh->dccph_type >= DCCP_PKT_DATA    &&
-           dh->dccph_type <= DCCP_PKT_DATAACK && dh->dccph_x == 0)  {
+       if ((dh->dccph_type < DCCP_PKT_DATA    ||
+           dh->dccph_type > DCCP_PKT_DATAACK) && dh->dccph_x == 0)  {
                DCCP_WARN("P.type (%s) not Data || [Data]Ack, while P.X == 0\n",
                          dccp_packet_name(dh->dccph_type));
                return 1;
@@ -810,7 +810,7 @@ static int dccp_v4_rcv(struct sk_buff *skb)
 
        /* Step 2:
         *      Look up flow ID in table and get corresponding socket */
-       sk = __inet_lookup(&init_net, &dccp_hashinfo,
+       sk = __inet_lookup(dev_net(skb->dst->dev), &dccp_hashinfo,
                           iph->saddr, dh->dccph_sport,
                           iph->daddr, dh->dccph_dport, inet_iif(skb));
        /*
@@ -951,6 +951,7 @@ static struct net_protocol dccp_v4_protocol = {
        .handler        = dccp_v4_rcv,
        .err_handler    = dccp_v4_err,
        .no_policy      = 1,
+       .netns_ok       = 1,
 };
 
 static const struct proto_ops inet_dccp_ops = {