Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

[linux-2.6-omap-h63xx.git] / net / ipv6 / sit.c

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 18ec86f177d929ed6f143374f71201da1f739f3f..466657a9a8bd813e4f07afbfef261b9200d38c83 100644 (file)
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -99,10 +99,10 @@ static struct ip_tunnel * ipip6_tunnel_lookup(__be32 remote, __be32 local)
        return NULL;
 }
 
-static struct ip_tunnel ** ipip6_bucket(struct ip_tunnel *t)
+static struct ip_tunnel **__ipip6_bucket(struct ip_tunnel_parm *parms)
 {
-       __be32 remote = t->parms.iph.daddr;
-       __be32 local = t->parms.iph.saddr;
+       __be32 remote = parms->iph.daddr;
+       __be32 local = parms->iph.saddr;
        unsigned h = 0;
        int prio = 0;
 
@@ -117,6 +117,11 @@ static struct ip_tunnel ** ipip6_bucket(struct ip_tunnel *t)
        return &tunnels[prio][h];
 }
 
+static inline struct ip_tunnel **ipip6_bucket(struct ip_tunnel *t)
+{
+       return __ipip6_bucket(&t->parms);
+}
+
 static void ipip6_tunnel_unlink(struct ip_tunnel *t)
 {
        struct ip_tunnel **tp;
@@ -147,19 +152,9 @@ static struct ip_tunnel * ipip6_tunnel_locate(struct ip_tunnel_parm *parms, int
        __be32 local = parms->iph.saddr;
        struct ip_tunnel *t, **tp, *nt;
        struct net_device *dev;
-       unsigned h = 0;
-       int prio = 0;
        char name[IFNAMSIZ];
 
-       if (remote) {
-               prio |= 2;
-               h ^= HASH(remote);
-       }
-       if (local) {
-               prio |= 1;
-               h ^= HASH(local);
-       }
-       for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
+       for (tp = __ipip6_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
                if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
                        return t;
        }
@@ -172,7 +167,7 @@ static struct ip_tunnel * ipip6_tunnel_locate(struct ip_tunnel_parm *parms, int
                int i;
                for (i=1; i<100; i++) {
                        sprintf(name, "sit%d", i);
-                       if (__dev_get_by_name(name) == NULL)
+                       if (__dev_get_by_name(&init_net, name) == NULL)
                                break;
                }
                if (i==100)
@@ -224,8 +219,8 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
    ICMP in the real Internet is absolutely infeasible.
  */
        struct iphdr *iph = (struct iphdr*)skb->data;
-       int type = skb->h.icmph->type;
-       int code = skb->h.icmph->code;
+       const int type = icmp_hdr(skb)->type;
+       const int code = icmp_hdr(skb)->code;
        struct ip_tunnel *t;
        int err;
 
@@ -280,8 +275,8 @@ out:
        struct iphdr *iph = (struct iphdr*)dp;
        int hlen = iph->ihl<<2;
        struct ipv6hdr *iph6;
-       int type = skb->h.icmph->type;
-       int code = skb->h.icmph->code;
+       const int type = icmp_hdr(skb)->type;
+       const int code = icmp_hdr(skb)->code;
        int rel_type = 0;
        int rel_code = 0;
        int rel_info = 0;
@@ -296,14 +291,14 @@ out:
        default:
                return;
        case ICMP_PARAMETERPROB:
-               if (skb->h.icmph->un.gateway < hlen)
+               if (icmp_hdr(skb)->un.gateway < hlen)
                        return;
 
                /* So... This guy found something strange INSIDE encapsulated
                   packet. Well, he is fool, but what can we do ?
                 */
                rel_type = ICMPV6_PARAMPROB;
-               rel_info = skb->h.icmph->un.gateway - hlen;
+               rel_info = icmp_hdr(skb)->un.gateway - hlen;
                break;
 
        case ICMP_DEST_UNREACH:
@@ -382,7 +377,7 @@ static int ipip6_rcv(struct sk_buff *skb)
        read_lock(&ipip6_lock);
        if ((tunnel = ipip6_tunnel_lookup(iph->saddr, iph->daddr)) != NULL) {
                secpath_reset(skb);
-               skb->mac.raw = skb->nh.raw;
+               skb->mac_header = skb->network_header;
                skb_reset_network_header(skb);
                IPCB(skb)->flags = 0;
                skb->protocol = htons(ETH_P_IPV6);
@@ -537,7 +532,8 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
         */
        max_headroom = LL_RESERVED_SPACE(tdev)+sizeof(struct iphdr);
 
-       if (skb_headroom(skb) < max_headroom || skb_cloned(skb) || skb_shared(skb)) {
+       if (skb_headroom(skb) < max_headroom || skb_shared(skb) ||
+           (skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
                struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom);
                if (!new_skb) {
                        ip_rt_put(rt);
@@ -553,7 +549,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
                iph6 = ipv6_hdr(skb);
        }
 
-       skb->h.raw = skb->nh.raw;
+       skb->transport_header = skb->network_header;
        skb_push(skb, sizeof(struct iphdr));
        skb_reset_network_header(skb);
        memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
@@ -718,7 +714,6 @@ static int ipip6_tunnel_change_mtu(struct net_device *dev, int new_mtu)
 
 static void ipip6_tunnel_setup(struct net_device *dev)
 {
-       SET_MODULE_OWNER(dev);
        dev->uninit             = ipip6_tunnel_uninit;
        dev->destructor         = free_netdev;
        dev->hard_start_xmit    = ipip6_tunnel_xmit;
@@ -765,7 +760,7 @@ static int ipip6_tunnel_init(struct net_device *dev)
        }
 
        if (!tdev && tunnel->parms.link)
-               tdev = __dev_get_by_index(tunnel->parms.link);
+               tdev = __dev_get_by_index(&init_net, tunnel->parms.link);
 
        if (tdev) {
                dev->hard_header_len = tdev->hard_header_len + sizeof(struct iphdr);