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

[pandora-kernel.git] / net / ipv6 / tcp_ipv6.c

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2947bc5..301eee7 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -67,6 +67,9 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
+/* Socket used for sending RSTs and ACKs */
+static struct socket *tcp6_socket;
+
 static void    tcp_v6_send_reset(struct sk_buff *skb);
 static void    tcp_v6_reqsk_send_ack(struct sk_buff *skb, struct request_sock *req);
 static void    tcp_v6_send_check(struct sock *sk, int len, 
@@ -512,6 +515,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
 done:
         if (opt && opt != np->opt)
                sock_kfree_s(sk, opt, opt->tot_len);
+       dst_release(dst);
        return err;
 }
 
@@ -611,7 +615,7 @@ static void tcp_v6_send_reset(struct sk_buff *skb)
        if (!ip6_dst_lookup(NULL, &buff->dst, &fl)) {
 
                if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
-                       ip6_xmit(NULL, buff, &fl, NULL, 0);
+                       ip6_xmit(tcp6_socket->sk, buff, &fl, NULL, 0);
                        TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
                        TCP_INC_STATS_BH(TCP_MIB_OUTRSTS);
                        return;
@@ -675,7 +679,7 @@ static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32
 
        if (!ip6_dst_lookup(NULL, &buff->dst, &fl)) {
                if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) {
-                       ip6_xmit(NULL, buff, &fl, NULL, 0);
+                       ip6_xmit(tcp6_socket->sk, buff, &fl, NULL, 0);
                        TCP_INC_STATS_BH(TCP_MIB_OUTSEGS);
                        return;
                }
@@ -983,6 +987,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
                inet_csk(newsk)->icsk_ext_hdr_len = (newnp->opt->opt_nflen +
                                                     newnp->opt->opt_flen);
 
+       tcp_mtup_init(newsk);
        tcp_sync_mss(newsk, dst_mtu(dst));
        newtp->advmss = dst_metric(dst, RTAX_ADVMSS);
        tcp_initialize_rcv_mss(newsk);
@@ -1153,7 +1158,7 @@ ipv6_pktoptions:
        return 0;
 }
 
-static int tcp_v6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
+static int tcp_v6_rcv(struct sk_buff **pskb)
 {
        struct sk_buff *skb = *pskb;
        struct tcphdr *th;      
@@ -1293,18 +1298,21 @@ static int tcp_v6_remember_stamp(struct sock *sk)
 }
 
 static struct inet_connection_sock_af_ops ipv6_specific = {
-       .queue_xmit     =       inet6_csk_xmit,
-       .send_check     =       tcp_v6_send_check,
-       .rebuild_header =       inet6_sk_rebuild_header,
-       .conn_request   =       tcp_v6_conn_request,
-       .syn_recv_sock  =       tcp_v6_syn_recv_sock,
-       .remember_stamp =       tcp_v6_remember_stamp,
-       .net_header_len =       sizeof(struct ipv6hdr),
-
-       .setsockopt     =       ipv6_setsockopt,
-       .getsockopt     =       ipv6_getsockopt,
-       .addr2sockaddr  =       inet6_csk_addr2sockaddr,
-       .sockaddr_len   =       sizeof(struct sockaddr_in6)
+       .queue_xmit        = inet6_csk_xmit,
+       .send_check        = tcp_v6_send_check,
+       .rebuild_header    = inet6_sk_rebuild_header,
+       .conn_request      = tcp_v6_conn_request,
+       .syn_recv_sock     = tcp_v6_syn_recv_sock,
+       .remember_stamp    = tcp_v6_remember_stamp,
+       .net_header_len    = sizeof(struct ipv6hdr),
+       .setsockopt        = ipv6_setsockopt,
+       .getsockopt        = ipv6_getsockopt,
+       .addr2sockaddr     = inet6_csk_addr2sockaddr,
+       .sockaddr_len      = sizeof(struct sockaddr_in6),
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_ipv6_setsockopt,
+       .compat_getsockopt = compat_ipv6_getsockopt,
+#endif
 };
 
 /*
@@ -1312,22 +1320,23 @@ static struct inet_connection_sock_af_ops ipv6_specific = {
  */
 
 static struct inet_connection_sock_af_ops ipv6_mapped = {
-       .queue_xmit     =       ip_queue_xmit,
-       .send_check     =       tcp_v4_send_check,
-       .rebuild_header =       inet_sk_rebuild_header,
-       .conn_request   =       tcp_v6_conn_request,
-       .syn_recv_sock  =       tcp_v6_syn_recv_sock,
-       .remember_stamp =       tcp_v4_remember_stamp,
-       .net_header_len =       sizeof(struct iphdr),
-
-       .setsockopt     =       ipv6_setsockopt,
-       .getsockopt     =       ipv6_getsockopt,
-       .addr2sockaddr  =       inet6_csk_addr2sockaddr,
-       .sockaddr_len   =       sizeof(struct sockaddr_in6)
+       .queue_xmit        = ip_queue_xmit,
+       .send_check        = tcp_v4_send_check,
+       .rebuild_header    = inet_sk_rebuild_header,
+       .conn_request      = tcp_v6_conn_request,
+       .syn_recv_sock     = tcp_v6_syn_recv_sock,
+       .remember_stamp    = tcp_v4_remember_stamp,
+       .net_header_len    = sizeof(struct iphdr),
+       .setsockopt        = ipv6_setsockopt,
+       .getsockopt        = ipv6_getsockopt,
+       .addr2sockaddr     = inet6_csk_addr2sockaddr,
+       .sockaddr_len      = sizeof(struct sockaddr_in6),
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_ipv6_setsockopt,
+       .compat_getsockopt = compat_ipv6_getsockopt,
+#endif
 };
 
-
-
 /* NOTE: A lot of things set to zero explicitly by call to
  *       sk_alloc() so need not be done here.
  */
@@ -1579,6 +1588,10 @@ struct proto tcpv6_prot = {
        .obj_size               = sizeof(struct tcp6_sock),
        .twsk_prot              = &tcp6_timewait_sock_ops,
        .rsk_prot               = &tcp6_request_sock_ops,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt      = compat_tcp_setsockopt,
+       .compat_getsockopt      = compat_tcp_getsockopt,
+#endif
 };
 
 static struct inet6_protocol tcpv6_protocol = {
@@ -1604,4 +1617,8 @@ void __init tcpv6_init(void)
        if (inet6_add_protocol(&tcpv6_protocol, IPPROTO_TCP) < 0)
                printk(KERN_ERR "tcpv6_init: Could not register protocol\n");
        inet6_register_protosw(&tcpv6_protosw);
+
+       if (inet_csk_ctl_sock_create(&tcp6_socket, PF_INET6, SOCK_RAW,
+                                    IPPROTO_TCP) < 0)
+               panic("Failed to create the TCPv6 control socket.\n");
 }