fedora core 6 1.2949 + vserver 2.2.0
[linux-2.6.git] / net / ipv6 / af_inet6.c
index 6c9711a..0e0e426 100644 (file)
@@ -23,7 +23,6 @@
 
 #include <linux/module.h>
 #include <linux/capability.h>
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/socket.h>
@@ -50,6 +49,7 @@
 #include <net/ip.h>
 #include <net/ipv6.h>
 #include <net/udp.h>
+#include <net/udplite.h>
 #include <net/tcp.h>
 #include <net/ipip.h>
 #include <net/protocol.h>
@@ -60,6 +60,9 @@
 #ifdef CONFIG_IPV6_TUNNEL
 #include <net/ip6_tunnel.h>
 #endif
+#ifdef CONFIG_IPV6_MIP6
+#include <net/mip6.h>
+#endif
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -68,7 +71,7 @@ MODULE_AUTHOR("Cast of dozens");
 MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
 MODULE_LICENSE("GPL");
 
-int sysctl_ipv6_bindv6only;
+int sysctl_ipv6_bindv6only __read_mostly;
 
 /* The inetsw table contains everything that inet_create needs to
  * build a new socket.
@@ -168,7 +171,7 @@ lookup_protocol:
                sk->sk_reuse = 1;
 
        inet = inet_sk(sk);
-       inet->is_icsk = INET_PROTOSW_ICSK & answer_flags;
+       inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;
 
        if (SOCK_RAW == sock->type) {
                inet->num = protocol;
@@ -219,7 +222,7 @@ lookup_protocol:
                 * the user to assign a number at socket
                 * creation time automatically shares.
                 */
-               inet->sport = ntohs(inet->num);
+               inet->sport = htons(inet->num);
                sk->sk_prot->hash(sk);
        }
        if (sk->sk_prot->init) {
@@ -244,7 +247,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        struct sock *sk = sock->sk;
        struct inet_sock *inet = inet_sk(sk);
        struct ipv6_pinfo *np = inet6_sk(sk);
-       __u32 v4addr = 0;
+       __be32 v4addr = 0;
        unsigned short snum;
        int addr_type = 0;
        int err = 0;
@@ -339,7 +342,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
        if (snum)
                sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
-       inet->sport = ntohs(inet->num);
+       inet->sport = htons(inet->num);
        inet->dport = 0;
        inet->daddr = 0;
 out:
@@ -456,45 +459,53 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 }
 
 const struct proto_ops inet6_stream_ops = {
-       .family =       PF_INET6,
-       .owner =        THIS_MODULE,
-       .release =      inet6_release,
-       .bind =         inet6_bind,
-       .connect =      inet_stream_connect,            /* ok           */
-       .socketpair =   sock_no_socketpair,             /* a do nothing */
-       .accept =       inet_accept,                    /* ok           */
-       .getname =      inet6_getname, 
-       .poll =         tcp_poll,                       /* ok           */
-       .ioctl =        inet6_ioctl,                    /* must change  */
-       .listen =       inet_listen,                    /* ok           */
-       .shutdown =     inet_shutdown,                  /* ok           */
-       .setsockopt =   sock_common_setsockopt,         /* ok           */
-       .getsockopt =   sock_common_getsockopt,         /* ok           */
-       .sendmsg =      inet_sendmsg,                   /* ok           */
-       .recvmsg =      sock_common_recvmsg,            /* ok           */
-       .mmap =         sock_no_mmap,
-       .sendpage =     tcp_sendpage
+       .family            = PF_INET6,
+       .owner             = THIS_MODULE,
+       .release           = inet6_release,
+       .bind              = inet6_bind,
+       .connect           = inet_stream_connect,       /* ok           */
+       .socketpair        = sock_no_socketpair,        /* a do nothing */
+       .accept            = inet_accept,               /* ok           */
+       .getname           = inet6_getname,
+       .poll              = tcp_poll,                  /* ok           */
+       .ioctl             = inet6_ioctl,               /* must change  */
+       .listen            = inet_listen,               /* ok           */
+       .shutdown          = inet_shutdown,             /* ok           */
+       .setsockopt        = sock_common_setsockopt,    /* ok           */
+       .getsockopt        = sock_common_getsockopt,    /* ok           */
+       .sendmsg           = inet_sendmsg,              /* ok           */
+       .recvmsg           = sock_common_recvmsg,       /* ok           */
+       .mmap              = sock_no_mmap,
+       .sendpage          = tcp_sendpage,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_sock_common_setsockopt,
+       .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 const struct proto_ops inet6_dgram_ops = {
-       .family =       PF_INET6,
-       .owner =        THIS_MODULE,
-       .release =      inet6_release,
-       .bind =         inet6_bind,
-       .connect =      inet_dgram_connect,             /* ok           */
-       .socketpair =   sock_no_socketpair,             /* a do nothing */
-       .accept =       sock_no_accept,                 /* a do nothing */
-       .getname =      inet6_getname, 
-       .poll =         udp_poll,                       /* ok           */
-       .ioctl =        inet6_ioctl,                    /* must change  */
-       .listen =       sock_no_listen,                 /* ok           */
-       .shutdown =     inet_shutdown,                  /* ok           */
-       .setsockopt =   sock_common_setsockopt,         /* ok           */
-       .getsockopt =   sock_common_getsockopt,         /* ok           */
-       .sendmsg =      inet_sendmsg,                   /* ok           */
-       .recvmsg =      sock_common_recvmsg,            /* ok           */
-       .mmap =         sock_no_mmap,
-       .sendpage =     sock_no_sendpage,
+       .family            = PF_INET6,
+       .owner             = THIS_MODULE,
+       .release           = inet6_release,
+       .bind              = inet6_bind,
+       .connect           = inet_dgram_connect,        /* ok           */
+       .socketpair        = sock_no_socketpair,        /* a do nothing */
+       .accept            = sock_no_accept,            /* a do nothing */
+       .getname           = inet6_getname,
+       .poll              = udp_poll,                  /* ok           */
+       .ioctl             = inet6_ioctl,               /* must change  */
+       .listen            = sock_no_listen,            /* ok           */
+       .shutdown          = inet_shutdown,             /* ok           */
+       .setsockopt        = sock_common_setsockopt,    /* ok           */
+       .getsockopt        = sock_common_getsockopt,    /* ok           */
+       .sendmsg           = inet_sendmsg,              /* ok           */
+       .recvmsg           = sock_common_recvmsg,       /* ok           */
+       .mmap              = sock_no_mmap,
+       .sendpage          = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_sock_common_setsockopt,
+       .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 static struct net_proto_family inet6_family_ops = {
@@ -505,24 +516,28 @@ static struct net_proto_family inet6_family_ops = {
 
 /* Same as inet6_dgram_ops, sans udp_poll.  */
 static const struct proto_ops inet6_sockraw_ops = {
-       .family =       PF_INET6,
-       .owner =        THIS_MODULE,
-       .release =      inet6_release,
-       .bind =         inet6_bind,
-       .connect =      inet_dgram_connect,             /* ok           */
-       .socketpair =   sock_no_socketpair,             /* a do nothing */
-       .accept =       sock_no_accept,                 /* a do nothing */
-       .getname =      inet6_getname, 
-       .poll =         datagram_poll,                  /* ok           */
-       .ioctl =        inet6_ioctl,                    /* must change  */
-       .listen =       sock_no_listen,                 /* ok           */
-       .shutdown =     inet_shutdown,                  /* ok           */
-       .setsockopt =   sock_common_setsockopt,         /* ok           */
-       .getsockopt =   sock_common_getsockopt,         /* ok           */
-       .sendmsg =      inet_sendmsg,                   /* ok           */
-       .recvmsg =      sock_common_recvmsg,            /* ok           */
-       .mmap =         sock_no_mmap,
-       .sendpage =     sock_no_sendpage,
+       .family            = PF_INET6,
+       .owner             = THIS_MODULE,
+       .release           = inet6_release,
+       .bind              = inet6_bind,
+       .connect           = inet_dgram_connect,        /* ok           */
+       .socketpair        = sock_no_socketpair,        /* a do nothing */
+       .accept            = sock_no_accept,            /* a do nothing */
+       .getname           = inet6_getname,
+       .poll              = datagram_poll,             /* ok           */
+       .ioctl             = inet6_ioctl,               /* must change  */
+       .listen            = sock_no_listen,            /* ok           */
+       .shutdown          = inet_shutdown,             /* ok           */
+       .setsockopt        = sock_common_setsockopt,    /* ok           */
+       .getsockopt        = sock_common_getsockopt,    /* ok           */
+       .sendmsg           = inet_sendmsg,              /* ok           */
+       .recvmsg           = sock_common_recvmsg,       /* ok           */
+       .mmap              = sock_no_mmap,
+       .sendpage          = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_sock_common_setsockopt,
+       .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
 };
 
 static struct inet_protosw rawv6_protosw = {
@@ -626,6 +641,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
                fl.oif = sk->sk_bound_dev_if;
                fl.fl_ip_dport = inet->dport;
                fl.fl_ip_sport = inet->sport;
+               security_sk_classify_flow(sk, &fl);
 
                if (np->opt && np->opt->srcrt) {
                        struct rt0_hdr *rt0 = (struct rt0_hdr *) np->opt->srcrt;
@@ -647,9 +663,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
                        return err;
                }
 
-               ip6_dst_store(sk, dst, NULL);
-               sk->sk_route_caps = dst->dev->features &
-                       ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
+               __ip6_dst_store(sk, dst, NULL, NULL);
        }
 
        return 0;
@@ -665,7 +679,7 @@ int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb)
        if (np->rxopt.all) {
                if ((opt->hop && (np->rxopt.bits.hopopts ||
                                  np->rxopt.bits.ohopopts)) ||
-                   ((IPV6_FLOWINFO_MASK & *(u32*)skb->nh.raw) &&
+                   ((IPV6_FLOWINFO_MASK & *(__be32*)skb->nh.raw) &&
                     np->rxopt.bits.rxflow) ||
                    (opt->srcrt && (np->rxopt.bits.srcrt ||
                     np->rxopt.bits.osrcrt)) ||
@@ -706,10 +720,8 @@ snmp6_mib_free(void *ptr[2])
 {
        if (ptr == NULL)
                return;
-       if (ptr[0])
-               free_percpu(ptr[0]);
-       if (ptr[1])
-               free_percpu(ptr[1]);
+       free_percpu(ptr[0]);
+       free_percpu(ptr[1]);
        ptr[0] = ptr[1] = NULL;
 }
 
@@ -724,8 +736,13 @@ static int __init init_ipv6_mibs(void)
        if (snmp6_mib_init((void **)udp_stats_in6, sizeof (struct udp_mib),
                           __alignof__(struct udp_mib)) < 0)
                goto err_udp_mib;
+       if (snmp6_mib_init((void **)udplite_stats_in6, sizeof (struct udp_mib),
+                          __alignof__(struct udp_mib)) < 0)
+               goto err_udplite_mib;
        return 0;
 
+err_udplite_mib:
+       snmp6_mib_free((void **)udp_stats_in6);
 err_udp_mib:
        snmp6_mib_free((void **)icmpv6_statistics);
 err_icmp_mib:
@@ -740,6 +757,7 @@ static void cleanup_ipv6_mibs(void)
        snmp6_mib_free((void **)ipv6_statistics);
        snmp6_mib_free((void **)icmpv6_statistics);
        snmp6_mib_free((void **)udp_stats_in6);
+       snmp6_mib_free((void **)udplite_stats_in6);
 }
 
 static int __init inet6_init(void)
@@ -748,6 +766,8 @@ static int __init inet6_init(void)
         struct list_head *r;
        int err;
 
+       BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb));
+
 #ifdef MODULE
 #if 0 /* FIXME --RR */
        if (!mod_member_present(&__this_module, can_unload))
@@ -757,11 +777,6 @@ static int __init inet6_init(void)
 #endif
 #endif
 
-       if (sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb)) {
-               printk(KERN_CRIT "inet6_proto_init: size fault\n");
-               return -EINVAL;
-       }
-
        err = proto_register(&tcpv6_prot, 1);
        if (err)
                goto out;
@@ -770,10 +785,14 @@ static int __init inet6_init(void)
        if (err)
                goto out_unregister_tcp_proto;
 
-       err = proto_register(&rawv6_prot, 1);
+       err = proto_register(&udplitev6_prot, 1);
        if (err)
                goto out_unregister_udp_proto;
 
+       err = proto_register(&rawv6_prot, 1);
+       if (err)
+               goto out_unregister_udplite_proto;
+
 
        /* Register the socket-side information for inet6_create.  */
        for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
@@ -827,6 +846,8 @@ static int __init inet6_init(void)
                goto proc_tcp6_fail;
        if (udp6_proc_init())
                goto proc_udp6_fail;
+       if (udplite6_proc_init())
+               goto proc_udplite6_fail;
        if (ipv6_misc_proc_init())
                goto proc_misc6_fail;
 
@@ -840,16 +861,19 @@ static int __init inet6_init(void)
        err = addrconf_init();
        if (err)
                goto addrconf_fail;
-       sit_init();
 
        /* Init v6 extension headers. */
        ipv6_rthdr_init();
        ipv6_frag_init();
        ipv6_nodata_init();
        ipv6_destopt_init();
+#ifdef CONFIG_IPV6_MIP6
+       mip6_init();
+#endif
 
        /* Init v6 transport protocols. */
        udpv6_init();
+       udplitev6_init();
        tcpv6_init();
 
        ipv6_packet_init();
@@ -867,6 +891,8 @@ proc_if6_fail:
 proc_anycast6_fail:
        ipv6_misc_proc_exit();
 proc_misc6_fail:
+       udplite6_proc_exit();
+proc_udplite6_fail:
        udp6_proc_exit();
 proc_udp6_fail:
        tcp6_proc_exit();
@@ -890,6 +916,8 @@ out_unregister_sock:
        sock_unregister(PF_INET6);
 out_unregister_raw_proto:
        proto_unregister(&rawv6_prot);
+out_unregister_udplite_proto:
+       proto_unregister(&udplitev6_prot);
 out_unregister_udp_proto:
        proto_unregister(&udpv6_prot);
 out_unregister_tcp_proto:
@@ -907,11 +935,14 @@ static void __exit inet6_exit(void)
        ac6_proc_exit();
        ipv6_misc_proc_exit();
        udp6_proc_exit();
+       udplite6_proc_exit();
        tcp6_proc_exit();
        raw6_proc_exit();
+#endif
+#ifdef CONFIG_IPV6_MIP6
+       mip6_fini();
 #endif
        /* Cleanup code parts. */
-       sit_cleanup();
        ip6_flowlabel_cleanup();
        addrconf_cleanup();
        ip6_route_cleanup();