1 files changed, 43 insertions, 26 deletions

diff --git a/include/net/ip.h b/include/net/ip.h
index 890f9725d681..66dd49149208 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -52,14 +52,14 @@ static inline unsigned int ip_hdrlen(const struct sk_buff *skb)
 struct ipcm_cookie {
         __be32                  addr;
         int                     oif;
-        struct ip_options       *opt;
-        union skb_shared_tx     shtx;
+        struct ip_options_rcu   *opt;
+        __u8                    tx_flags;
 };
 
 #define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb))
 
 struct ip_ra_chain {
-        struct ip_ra_chain      *next;
+        struct ip_ra_chain __rcu *next;
         struct sock             *sk;
         union {
                 void                    (*destructor)(struct sock *);
@@ -68,7 +68,7 @@ struct ip_ra_chain {
         struct rcu_head         rcu;
 };
 
-extern struct ip_ra_chain *ip_ra_chain;
+extern struct ip_ra_chain __rcu *ip_ra_chain;
 
 /* IP flags. */
 #define IP_CE           0x8000          /* Flag: "Congestion"           */
@@ -92,7 +92,7 @@ extern int		igmp_mc_proc_init(void);
 
 extern int              ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
                                               __be32 saddr, __be32 daddr,
-                                              struct ip_options *opt);
+                                              struct ip_options_rcu *opt);
 extern int              ip_rcv(struct sk_buff *skb, struct net_device *dev,
                                struct packet_type *pt, struct net_device *orig_dev);
 extern int              ip_local_deliver(struct sk_buff *skb);
@@ -104,9 +104,9 @@ extern int		ip_do_nat(struct sk_buff *skb);
 extern void             ip_send_check(struct iphdr *ip);
 extern int              __ip_local_out(struct sk_buff *skb);
 extern int              ip_local_out(struct sk_buff *skb);
-extern int              ip_queue_xmit(struct sk_buff *skb);
+extern int              ip_queue_xmit(struct sk_buff *skb, struct flowi *fl);
 extern void             ip_init(void);
-extern int              ip_append_data(struct sock *sk,
+extern int              ip_append_data(struct sock *sk, struct flowi4 *fl4,
                                        int getfrag(void *from, char *to, int offset, int len,
                                                    int odd, struct sk_buff *skb),
                                 void *from, int len, int protolen,
@@ -114,10 +114,28 @@ extern int		ip_append_data(struct sock *sk,
                                 struct rtable **rt,
                                 unsigned int flags);
 extern int              ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb);
-extern ssize_t          ip_append_page(struct sock *sk, struct page *page,
+extern ssize_t          ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
                                 int offset, size_t size, int flags);
-extern int              ip_push_pending_frames(struct sock *sk);
+extern struct sk_buff  *__ip_make_skb(struct sock *sk,
+                                      struct flowi4 *fl4,
+                                      struct sk_buff_head *queue,
+                                      struct inet_cork *cork);
+extern int              ip_send_skb(struct sk_buff *skb);
+extern int              ip_push_pending_frames(struct sock *sk, struct flowi4 *fl4);
 extern void             ip_flush_pending_frames(struct sock *sk);
+extern struct sk_buff  *ip_make_skb(struct sock *sk,
+                                    struct flowi4 *fl4,
+                                    int getfrag(void *from, char *to, int offset, int len,
+                                                int odd, struct sk_buff *skb),
+                                    void *from, int length, int transhdrlen,
+                                    struct ipcm_cookie *ipc,
+                                    struct rtable **rtp,
+                                    unsigned int flags);
+
+static inline struct sk_buff *ip_finish_skb(struct sock *sk, struct flowi4 *fl4)
+{
+        return __ip_make_skb(sk, fl4, &sk->sk_write_queue, &inet_sk(sk)->cork.base);
+}
 
 /* datagram.c */
 extern int              ip4_datagram_connect(struct sock *sk, 
@@ -156,8 +174,8 @@ static inline __u8 ip_reply_arg_flowi_flags(const struct ip_reply_arg *arg)
         return (arg->flags & IP_REPLY_ARG_NOSRCCHECK) ? FLOWI_FLAG_ANYSRC : 0;
 }
 
-void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *arg,
-                   unsigned int len); 
+void ip_send_reply(struct sock *sk, struct sk_buff *skb, __be32 daddr,
+                   struct ip_reply_arg *arg, unsigned int len);
 
 struct ipv4_config {
         int     log_martians;
@@ -201,7 +219,6 @@ static inline int inet_is_reserved_local_port(int port)
         return test_bit(port, sysctl_local_reserved_ports);
 }
 
-extern int sysctl_ip_default_ttl;
 extern int sysctl_ip_nonlocal_bind;
 
 extern struct ctl_path net_core_path[];
@@ -238,9 +255,9 @@ int ip_decrease_ttl(struct iphdr *iph)
 static inline
 int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)
 {
-        return (inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO ||
+        return  inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO ||
                 (inet_sk(sk)->pmtudisc == IP_PMTUDISC_WANT &&
-                 !(dst_metric_locked(dst, RTAX_MTU))));
+                 !(dst_metric_locked(dst, RTAX_MTU)));
 }
 
 extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more);
@@ -324,6 +341,14 @@ static inline void ip_ib_mc_map(__be32 naddr, const unsigned char *broadcast, ch
         buf[16] = addr & 0x0f;
 }
 
+static inline void ip_ipgre_mc_map(__be32 naddr, const unsigned char *broadcast, char *buf)
+{
+        if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0)
+                memcpy(buf, broadcast, 4);
+        else
+                memcpy(buf, &naddr, sizeof(naddr));
+}
+
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 #include <linux/ipv6.h>
 #endif
@@ -393,14 +418,15 @@ extern int ip_forward(struct sk_buff *skb);
  *      Functions provided by ip_options.c
  */
  
-extern void ip_options_build(struct sk_buff *skb, struct ip_options *opt, __be32 daddr, struct rtable *rt, int is_frag);
+extern void ip_options_build(struct sk_buff *skb, struct ip_options *opt,
+                             __be32 daddr, struct rtable *rt, int is_frag);
 extern int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb);
 extern void ip_options_fragment(struct sk_buff *skb);
 extern int ip_options_compile(struct net *net,
                               struct ip_options *opt, struct sk_buff *skb);
-extern int ip_options_get(struct net *net, struct ip_options **optp,
+extern int ip_options_get(struct net *net, struct ip_options_rcu **optp,
                           unsigned char *data, int optlen);
-extern int ip_options_get_from_user(struct net *net, struct ip_options **optp,
+extern int ip_options_get_from_user(struct net *net, struct ip_options_rcu **optp,
                                     unsigned char __user *data, int optlen);
 extern void ip_options_undo(struct ip_options * opt);
 extern void ip_forward_options(struct sk_buff *skb);
@@ -428,15 +454,6 @@ extern void	ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
 extern void     ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport,
                                u32 info);
 
-/* sysctl helpers - any sysctl which holds a value that ends up being
- * fed into the routing cache should use these handlers.
- */
-int ipv4_doint_and_flush(ctl_table *ctl, int write,
-                         void __user *buffer,
-                         size_t *lenp, loff_t *ppos);
-int ipv4_doint_and_flush_strategy(ctl_table *table,
-                                  void __user *oldval, size_t __user *oldlenp,
-                                  void __user *newval, size_t newlen);
 #ifdef CONFIG_PROC_FS
 extern int ip_misc_proc_init(void);
 #endif