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nfsd: fix Documentation typo
[safe/jmp/linux-2.6] / net / ipv4 / icmp.c
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 55c355e..5bc13fe 100644 (file)
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1,7 +1,7 @@
 /*
  *     NET3:   Implementation of the ICMP protocol layer.
  *
- *             Alan Cox, <alan@redhat.com>
+ *             Alan Cox, <alan@lxorguk.ukuu.org.uk>
  *
  *     This program is free software; you can redistribute it and/or
  *     modify it under the terms of the GNU General Public License
@@ -321,12 +321,12 @@ static int icmp_glue_bits(void *from, char *to, int offset, int len, int odd,
 }
 
 static void icmp_push_reply(struct icmp_bxm *icmp_param,
-                           struct ipcm_cookie *ipc, struct rtable *rt)
+                           struct ipcm_cookie *ipc, struct rtable **rt)
 {
        struct sock *sk;
        struct sk_buff *skb;
 
-       sk = icmp_sk(dev_net(rt->u.dst.dev));
+       sk = icmp_sk(dev_net((*rt)->u.dst.dev));
        if (ip_append_data(sk, icmp_glue_bits, icmp_param,
                           icmp_param->data_len+icmp_param->head_len,
                           icmp_param->head_len,
@@ -356,7 +356,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
 static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 {
        struct ipcm_cookie ipc;
-       struct rtable *rt = skb->rtable;
+       struct rtable *rt = skb_rtable(skb);
        struct net *net = dev_net(rt->u.dst.dev);
        struct sock *sk;
        struct inet_sock *inet;
@@ -375,6 +375,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
        inet->tos = ip_hdr(skb)->tos;
        daddr = ipc.addr = rt->rt_src;
        ipc.opt = NULL;
+       ipc.shtx.flags = 0;
        if (icmp_param->replyopts.optlen) {
                ipc.opt = &icmp_param->replyopts;
                if (ipc.opt->srr)
@@ -392,7 +393,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
        }
        if (icmpv4_xrlim_allow(net, rt, icmp_param->data.icmph.type,
                               icmp_param->data.icmph.code))
-               icmp_push_reply(icmp_param, &ipc, rt);
+               icmp_push_reply(icmp_param, &ipc, &rt);
        ip_rt_put(rt);
 out_unlock:
        icmp_xmit_unlock(sk);
@@ -415,7 +416,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
        struct iphdr *iph;
        int room;
        struct icmp_bxm icmp_param;
-       struct rtable *rt = skb_in->rtable;
+       struct rtable *rt = skb_rtable(skb_in);
        struct ipcm_cookie ipc;
        __be32 saddr;
        u8  tos;
@@ -532,6 +533,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
        inet_sk(sk)->tos = tos;
        ipc.addr = iph->saddr;
        ipc.opt = &icmp_param.replyopts;
+       ipc.shtx.flags = 0;
 
        {
                struct flowi fl = {
@@ -562,7 +564,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
                /* No need to clone since we're just using its address. */
                rt2 = rt;
 
-               err = xfrm_lookup((struct dst_entry **)&rt, &fl, NULL, 0);
+               err = xfrm_lookup(net, (struct dst_entry **)&rt, &fl, NULL, 0);
                switch (err) {
                case 0:
                        if (rt != rt2)
@@ -589,19 +591,19 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
                                goto relookup_failed;
 
                        /* Ugh! */
-                       odst = skb_in->dst;
+                       odst = skb_dst(skb_in);
                        err = ip_route_input(skb_in, fl.fl4_dst, fl.fl4_src,
                                             RT_TOS(tos), rt2->u.dst.dev);
 
                        dst_release(&rt2->u.dst);
-                       rt2 = skb_in->rtable;
-                       skb_in->dst = odst;
+                       rt2 = skb_rtable(skb_in);
+                       skb_dst_set(skb_in, odst);
                }
 
                if (err)
                        goto relookup_failed;
 
-               err = xfrm_lookup((struct dst_entry **)&rt2, &fl, NULL,
+               err = xfrm_lookup(net, (struct dst_entry **)&rt2, &fl, NULL,
                                  XFRM_LOOKUP_ICMP);
                switch (err) {
                case 0:
@@ -635,7 +637,7 @@ route_done:
                icmp_param.data_len = room;
        icmp_param.head_len = sizeof(struct icmphdr);
 
-       icmp_push_reply(&icmp_param, &ipc, rt);
+       icmp_push_reply(&icmp_param, &ipc, &rt);
 ende:
        ip_rt_put(rt);
 out_unlock:
@@ -653,11 +655,11 @@ static void icmp_unreach(struct sk_buff *skb)
        struct iphdr *iph;
        struct icmphdr *icmph;
        int hash, protocol;
-       struct net_protocol *ipprot;
+       const struct net_protocol *ipprot;
        u32 info = 0;
        struct net *net;
 
-       net = dev_net(skb->dst->dev);
+       net = dev_net(skb_dst(skb)->dev);
 
        /*
         *      Incomplete header ?
@@ -683,10 +685,8 @@ static void icmp_unreach(struct sk_buff *skb)
                        break;
                case ICMP_FRAG_NEEDED:
                        if (ipv4_config.no_pmtu_disc) {
-                               LIMIT_NETDEBUG(KERN_INFO "ICMP: " NIPQUAD_FMT ": "
-                                                        "fragmentation needed "
-                                                        "and DF set.\n",
-                                              NIPQUAD(iph->daddr));
+                               LIMIT_NETDEBUG(KERN_INFO "ICMP: %pI4: fragmentation needed and DF set.\n",
+                                              &iph->daddr);
                        } else {
                                info = ip_rt_frag_needed(net, iph,
                                                         ntohs(icmph->un.frag.mtu),
@@ -696,9 +696,8 @@ static void icmp_unreach(struct sk_buff *skb)
                        }
                        break;
                case ICMP_SR_FAILED:
-                       LIMIT_NETDEBUG(KERN_INFO "ICMP: " NIPQUAD_FMT ": Source "
-                                                "Route Failed.\n",
-                                      NIPQUAD(iph->daddr));
+                       LIMIT_NETDEBUG(KERN_INFO "ICMP: %pI4: Source Route Failed.\n",
+                                      &iph->daddr);
                        break;
                default:
                        break;
@@ -729,12 +728,12 @@ static void icmp_unreach(struct sk_buff *skb)
        if (!net->ipv4.sysctl_icmp_ignore_bogus_error_responses &&
            inet_addr_type(net, iph->daddr) == RTN_BROADCAST) {
                if (net_ratelimit())
-                       printk(KERN_WARNING NIPQUAD_FMT " sent an invalid ICMP "
+                       printk(KERN_WARNING "%pI4 sent an invalid ICMP "
                                            "type %u, code %u "
-                                           "error to a broadcast: " NIPQUAD_FMT " on %s\n",
-                              NIPQUAD(ip_hdr(skb)->saddr),
+                                           "error to a broadcast: %pI4 on %s\n",
+                              &ip_hdr(skb)->saddr,
                               icmph->type, icmph->code,
-                              NIPQUAD(iph->daddr),
+                              &iph->daddr,
                               skb->dev->name);
                goto out;
        }
@@ -823,7 +822,7 @@ static void icmp_echo(struct sk_buff *skb)
 {
        struct net *net;
 
-       net = dev_net(skb->dst->dev);
+       net = dev_net(skb_dst(skb)->dev);
        if (!net->ipv4.sysctl_icmp_echo_ignore_all) {
                struct icmp_bxm icmp_param;
 
@@ -874,7 +873,7 @@ static void icmp_timestamp(struct sk_buff *skb)
 out:
        return;
 out_err:
-       ICMP_INC_STATS_BH(dev_net(skb->dst->dev), ICMP_MIB_INERRORS);
+       ICMP_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ICMP_MIB_INERRORS);
        goto out;
 }
 
@@ -927,7 +926,7 @@ static void icmp_address(struct sk_buff *skb)
 
 static void icmp_address_reply(struct sk_buff *skb)
 {
-       struct rtable *rt = skb->rtable;
+       struct rtable *rt = skb_rtable(skb);
        struct net_device *dev = skb->dev;
        struct in_device *in_dev;
        struct in_ifaddr *ifa;
@@ -952,9 +951,8 @@ static void icmp_address_reply(struct sk_buff *skb)
                                break;
                }
                if (!ifa && net_ratelimit()) {
-                       printk(KERN_INFO "Wrong address mask " NIPQUAD_FMT " from "
-                                        "%s/" NIPQUAD_FMT "\n",
-                              NIPQUAD(*mp), dev->name, NIPQUAD(rt->rt_src));
+                       printk(KERN_INFO "Wrong address mask %pI4 from %s/%pI4\n",
+                              mp, dev->name, &rt->rt_src);
                }
        }
        rcu_read_unlock();
@@ -972,13 +970,14 @@ static void icmp_discard(struct sk_buff *skb)
 int icmp_rcv(struct sk_buff *skb)
 {
        struct icmphdr *icmph;
-       struct rtable *rt = skb->rtable;
+       struct rtable *rt = skb_rtable(skb);
        struct net *net = dev_net(rt->u.dst.dev);
 
        if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
+               struct sec_path *sp = skb_sec_path(skb);
                int nh;
 
-               if (!(skb->sp && skb->sp->xvec[skb->sp->len - 1]->props.flags &
+               if (!(sp && sp->xvec[sp->len - 1]->props.flags &
                                 XFRM_STATE_ICMP))
                        goto drop;
 
@@ -1208,7 +1207,7 @@ static struct pernet_operations __net_initdata icmp_sk_ops = {
 
 int __init icmp_init(void)
 {
-       return register_pernet_device(&icmp_sk_ops);
+       return register_pernet_subsys(&icmp_sk_ops);
 }
 
 EXPORT_SYMBOL(icmp_err_convert);
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