Use sk_mark for IPv6 routing lookups

[safe/jmp/linux-2.6] / net / ipv6 / af_inet6.c

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index b6215be..da36497 100644 (file)
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -72,9 +72,21 @@ MODULE_LICENSE("GPL");
 static struct list_head inetsw6[SOCK_MAX];
 static DEFINE_SPINLOCK(inetsw6_lock);
 
-static int disable_ipv6 = 0;
-module_param_named(disable, disable_ipv6, int, 0);
-MODULE_PARM_DESC(disable, "Disable IPv6 such that it is non-functional");
+struct ipv6_params ipv6_defaults = {
+       .disable_ipv6 = 0,
+       .autoconf = 1,
+};
+
+static int disable_ipv6_mod = 0;
+
+module_param_named(disable, disable_ipv6_mod, int, 0444);
+MODULE_PARM_DESC(disable, "Disable IPv6 module such that it is non-functional");
+
+module_param_named(disable_ipv6, ipv6_defaults.disable_ipv6, int, 0444);
+MODULE_PARM_DESC(disable_ipv6, "Disable IPv6 on all interfaces");
+
+module_param_named(autoconf, ipv6_defaults.autoconf, int, 0444);
+MODULE_PARM_DESC(autoconf, "Enable IPv6 address autoconfiguration on all interfaces");
 
 static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 {
@@ -294,8 +306,10 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                    v4addr != htonl(INADDR_ANY) &&
                    chk_addr_ret != RTN_LOCAL &&
                    chk_addr_ret != RTN_MULTICAST &&
-                   chk_addr_ret != RTN_BROADCAST)
+                   chk_addr_ret != RTN_BROADCAST) {
+                       err = -EADDRNOTAVAIL;
                        goto out;
+               }
        } else {
                if (addr_type != IPV6_ADDR_ANY) {
                        struct net_device *dev = NULL;
@@ -640,6 +654,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
                ipv6_addr_copy(&fl.fl6_src, &np->saddr);
                fl.fl6_flowlabel = np->flow_label;
                fl.oif = sk->sk_bound_dev_if;
+               fl.mark = sk->sk_mark;
                fl.fl_ip_dport = inet->dport;
                fl.fl_ip_sport = inet->sport;
                security_sk_classify_flow(sk, &fl);
@@ -696,7 +711,7 @@ EXPORT_SYMBOL_GPL(ipv6_opt_accepted);
 
 static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
 {
-       struct inet6_protocol *ops = NULL;
+       const struct inet6_protocol *ops = NULL;
 
        for (;;) {
                struct ipv6_opt_hdr *opth;
@@ -731,7 +746,7 @@ static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
 static int ipv6_gso_send_check(struct sk_buff *skb)
 {
        struct ipv6hdr *ipv6h;
-       struct inet6_protocol *ops;
+       const struct inet6_protocol *ops;
        int err = -EINVAL;
 
        if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
@@ -759,7 +774,12 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
 {
        struct sk_buff *segs = ERR_PTR(-EINVAL);
        struct ipv6hdr *ipv6h;
-       struct inet6_protocol *ops;
+       const struct inet6_protocol *ops;
+       int proto;
+       struct frag_hdr *fptr;
+       unsigned int unfrag_ip6hlen;
+       u8 *prevhdr;
+       int offset = 0;
 
        if (!(features & NETIF_F_V6_CSUM))
                features &= ~NETIF_F_SG;
@@ -779,10 +799,9 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
        __skb_pull(skb, sizeof(*ipv6h));
        segs = ERR_PTR(-EPROTONOSUPPORT);
 
+       proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
        rcu_read_lock();
-       ops = rcu_dereference(inet6_protos[
-               ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]);
-
+       ops = rcu_dereference(inet6_protos[proto]);
        if (likely(ops && ops->gso_segment)) {
                skb_reset_transport_header(skb);
                segs = ops->gso_segment(skb, features);
@@ -796,6 +815,16 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
                ipv6h = ipv6_hdr(skb);
                ipv6h->payload_len = htons(skb->len - skb->mac_len -
                                           sizeof(*ipv6h));
+               if (proto == IPPROTO_UDP) {
+                       unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
+                       fptr = (struct frag_hdr *)(skb_network_header(skb) +
+                               unfrag_ip6hlen);
+                       fptr->frag_off = htons(offset);
+                       if (skb->next != NULL)
+                               fptr->frag_off |= htons(IP6_MF);
+                       offset += (ntohs(ipv6h->payload_len) -
+                                  sizeof(struct frag_hdr));
+               }
        }
 
 out:
@@ -812,7 +841,7 @@ struct ipv6_gro_cb {
 static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
                                         struct sk_buff *skb)
 {
-       struct inet6_protocol *ops;
+       const struct inet6_protocol *ops;
        struct sk_buff **pp = NULL;
        struct sk_buff *p;
        struct ipv6hdr *iph;
@@ -898,7 +927,7 @@ out:
 
 static int ipv6_gro_complete(struct sk_buff *skb)
 {
-       struct inet6_protocol *ops;
+       const struct inet6_protocol *ops;
        struct ipv6hdr *iph = ipv6_hdr(skb);
        int err = -ENOSYS;
 
@@ -1038,7 +1067,7 @@ static int __init inet6_init(void)
        for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
                INIT_LIST_HEAD(r);
 
-       if (disable_ipv6) {
+       if (disable_ipv6_mod) {
                printk(KERN_INFO
                       "IPv6: Loaded, but administratively disabled, "
                       "reboot required to enable\n");
@@ -1227,7 +1256,7 @@ module_init(inet6_init);
 
 static void __exit inet6_exit(void)
 {
-       if (disable_ipv6)
+       if (disable_ipv6_mod)
                return;
 
        /* First of all disallow new sockets creation. */
@@ -1272,6 +1301,8 @@ static void __exit inet6_exit(void)
        proto_unregister(&udplitev6_prot);
        proto_unregister(&udpv6_prot);
        proto_unregister(&tcpv6_prot);
+
+       rcu_barrier(); /* Wait for completion of call_rcu()'s */
 }
 module_exit(inet6_exit);