Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 888 insertions, 0 deletions

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
new file mode 100644
index 000000000000..93624a32eb9a
--- /dev/null
+++ b/net/ipv4/raw.c
@@ -0,0 +1,888 @@
+/*
+ * INET         An implementation of the TCP/IP protocol suite for the LINUX
+ *              operating system.  INET is implemented using the  BSD Socket
+ *              interface as the means of communication with the user level.
+ *
+ *              RAW - implementation of IP "raw" sockets.
+ *
+ * Version:     $Id: raw.c,v 1.64 2002/02/01 22:01:04 davem Exp $
+ *
+ * Authors:     Ross Biro, <bir7@leland.Stanford.Edu>
+ *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *
+ * Fixes:
+ *              Alan Cox        :       verify_area() fixed up
+ *              Alan Cox        :       ICMP error handling
+ *              Alan Cox        :       EMSGSIZE if you send too big a packet
+ *              Alan Cox        :       Now uses generic datagrams and shared
+ *                                      skbuff library. No more peek crashes,
+ *                                      no more backlogs
+ *              Alan Cox        :       Checks sk->broadcast.
+ *              Alan Cox        :       Uses skb_free_datagram/skb_copy_datagram
+ *              Alan Cox        :       Raw passes ip options too
+ *              Alan Cox        :       Setsocketopt added
+ *              Alan Cox        :       Fixed error return for broadcasts
+ *              Alan Cox        :       Removed wake_up calls
+ *              Alan Cox        :       Use ttl/tos
+ *              Alan Cox        :       Cleaned up old debugging
+ *              Alan Cox        :       Use new kernel side addresses
+ *      Arnt Gulbrandsen        :       Fixed MSG_DONTROUTE in raw sockets.
+ *              Alan Cox        :       BSD style RAW socket demultiplexing.
+ *              Alan Cox        :       Beginnings of mrouted support.
+ *              Alan Cox        :       Added IP_HDRINCL option.
+ *              Alan Cox        :       Skip broadcast check if BSDism set.
+ *              David S. Miller :       New socket lookup architecture.
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              as published by the Free Software Foundation; either version
+ *              2 of the License, or (at your option) any later version.
+ */
+ 
+#include <linux/config.h> 
+#include <asm/atomic.h>
+#include <asm/byteorder.h>
+#include <asm/current.h>
+#include <asm/uaccess.h>
+#include <asm/ioctls.h>
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/aio.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/sockios.h>
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/mroute.h>
+#include <linux/netdevice.h>
+#include <linux/in_route.h>
+#include <linux/route.h>
+#include <linux/tcp.h>
+#include <linux/skbuff.h>
+#include <net/dst.h>
+#include <net/sock.h>
+#include <linux/gfp.h>
+#include <linux/ip.h>
+#include <linux/net.h>
+#include <net/ip.h>
+#include <net/icmp.h>
+#include <net/udp.h>
+#include <net/raw.h>
+#include <net/snmp.h>
+#include <net/inet_common.h>
+#include <net/checksum.h>
+#include <net/xfrm.h>
+#include <linux/rtnetlink.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+
+struct hlist_head raw_v4_htable[RAWV4_HTABLE_SIZE];
+DEFINE_RWLOCK(raw_v4_lock);
+
+static void raw_v4_hash(struct sock *sk)
+{
+        struct hlist_head *head = &raw_v4_htable[inet_sk(sk)->num &
+                                                 (RAWV4_HTABLE_SIZE - 1)];
+
+        write_lock_bh(&raw_v4_lock);
+        sk_add_node(sk, head);
+        sock_prot_inc_use(sk->sk_prot);
+        write_unlock_bh(&raw_v4_lock);
+}
+
+static void raw_v4_unhash(struct sock *sk)
+{
+        write_lock_bh(&raw_v4_lock);
+        if (sk_del_node_init(sk))
+                sock_prot_dec_use(sk->sk_prot);
+        write_unlock_bh(&raw_v4_lock);
+}
+
+struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
+                             unsigned long raddr, unsigned long laddr,
+                             int dif)
+{
+        struct hlist_node *node;
+
+        sk_for_each_from(sk, node) {
+                struct inet_sock *inet = inet_sk(sk);
+
+                if (inet->num == num                                    &&
+                    !(inet->daddr && inet->daddr != raddr)              &&
+                    !(inet->rcv_saddr && inet->rcv_saddr != laddr)      &&
+                    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
+                        goto found; /* gotcha */
+        }
+        sk = NULL;
+found:
+        return sk;
+}
+
+/*
+ *      0 - deliver
+ *      1 - block
+ */
+static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
+{
+        int type;
+
+        if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
+                return 1;
+
+        type = skb->h.icmph->type;
+        if (type < 32) {
+                __u32 data = raw_sk(sk)->filter.data;
+
+                return ((1 << type) & data) != 0;
+        }
+
+        /* Do not block unknown ICMP types */
+        return 0;
+}
+
+/* IP input processing comes here for RAW socket delivery.
+ * Caller owns SKB, so we must make clones.
+ *
+ * RFC 1122: SHOULD pass TOS value up to the transport layer.
+ * -> It does. And not only TOS, but all IP header.
+ */
+void raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash)
+{
+        struct sock *sk;
+        struct hlist_head *head;
+
+        read_lock(&raw_v4_lock);
+        head = &raw_v4_htable[hash];
+        if (hlist_empty(head))
+                goto out;
+        sk = __raw_v4_lookup(__sk_head(head), iph->protocol,
+                             iph->saddr, iph->daddr,
+                             skb->dev->ifindex);
+
+        while (sk) {
+                if (iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) {
+                        struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
+
+                        /* Not releasing hash table! */
+                        if (clone)
+                                raw_rcv(sk, clone);
+                }
+                sk = __raw_v4_lookup(sk_next(sk), iph->protocol,
+                                     iph->saddr, iph->daddr,
+                                     skb->dev->ifindex);
+        }
+out:
+        read_unlock(&raw_v4_lock);
+}
+
+void raw_err (struct sock *sk, struct sk_buff *skb, u32 info)
+{
+        struct inet_sock *inet = inet_sk(sk);
+        int type = skb->h.icmph->type;
+        int code = skb->h.icmph->code;
+        int err = 0;
+        int harderr = 0;
+
+        /* Report error on raw socket, if:
+           1. User requested ip_recverr.
+           2. Socket is connected (otherwise the error indication
+              is useless without ip_recverr and error is hard.
+         */
+        if (!inet->recverr && sk->sk_state != TCP_ESTABLISHED)
+                return;
+
+        switch (type) {
+        default:
+        case ICMP_TIME_EXCEEDED:
+                err = EHOSTUNREACH;
+                break;
+        case ICMP_SOURCE_QUENCH:
+                return;
+        case ICMP_PARAMETERPROB:
+                err = EPROTO;
+                harderr = 1;
+                break;
+        case ICMP_DEST_UNREACH:
+                err = EHOSTUNREACH;
+                if (code > NR_ICMP_UNREACH)
+                        break;
+                err = icmp_err_convert[code].errno;
+                harderr = icmp_err_convert[code].fatal;
+                if (code == ICMP_FRAG_NEEDED) {
+                        harderr = inet->pmtudisc != IP_PMTUDISC_DONT;
+                        err = EMSGSIZE;
+                }
+        }
+
+        if (inet->recverr) {
+                struct iphdr *iph = (struct iphdr*)skb->data;
+                u8 *payload = skb->data + (iph->ihl << 2);
+
+                if (inet->hdrincl)
+                        payload = skb->data;
+                ip_icmp_error(sk, skb, err, 0, info, payload);
+        }
+
+        if (inet->recverr || harderr) {
+                sk->sk_err = err;
+                sk->sk_error_report(sk);
+        }
+}
+
+static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb)
+{
+        /* Charge it to the socket. */
+        
+        if (sock_queue_rcv_skb(sk, skb) < 0) {
+                /* FIXME: increment a raw drops counter here */
+                kfree_skb(skb);
+                return NET_RX_DROP;
+        }
+
+        return NET_RX_SUCCESS;
+}
+
+int raw_rcv(struct sock *sk, struct sk_buff *skb)
+{
+        if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
+                kfree_skb(skb);
+                return NET_RX_DROP;
+        }
+
+        skb_push(skb, skb->data - skb->nh.raw);
+
+        raw_rcv_skb(sk, skb);
+        return 0;
+}
+
+static int raw_send_hdrinc(struct sock *sk, void *from, int length,
+                        struct rtable *rt, 
+                        unsigned int flags)
+{
+        struct inet_sock *inet = inet_sk(sk);
+        int hh_len;
+        struct iphdr *iph;
+        struct sk_buff *skb;
+        int err;
+
+        if (length > rt->u.dst.dev->mtu) {
+                ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport,
+                               rt->u.dst.dev->mtu);
+                return -EMSGSIZE;
+        }
+        if (flags&MSG_PROBE)
+                goto out;
+
+        hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
+
+        skb = sock_alloc_send_skb(sk, length+hh_len+15,
+                                  flags&MSG_DONTWAIT, &err);
+        if (skb == NULL)
+                goto error; 
+        skb_reserve(skb, hh_len);
+
+        skb->priority = sk->sk_priority;
+        skb->dst = dst_clone(&rt->u.dst);
+
+        skb->nh.iph = iph = (struct iphdr *)skb_put(skb, length);
+
+        skb->ip_summed = CHECKSUM_NONE;
+
+        skb->h.raw = skb->nh.raw;
+        err = memcpy_fromiovecend((void *)iph, from, 0, length);
+        if (err)
+                goto error_fault;
+
+        /* We don't modify invalid header */
+        if (length >= sizeof(*iph) && iph->ihl * 4 <= length) {
+                if (!iph->saddr)
+                        iph->saddr = rt->rt_src;
+                iph->check   = 0;
+                iph->tot_len = htons(length);
+                if (!iph->id)
+                        ip_select_ident(iph, &rt->u.dst, NULL);
+
+                iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
+        }
+
+        err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
+                      dst_output);
+        if (err > 0)
+                err = inet->recverr ? net_xmit_errno(err) : 0;
+        if (err)
+                goto error;
+out:
+        return 0;
+
+error_fault:
+        err = -EFAULT;
+        kfree_skb(skb);
+error:
+        IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
+        return err; 
+}
+
+static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
+{
+        struct iovec *iov;
+        u8 __user *type = NULL;
+        u8 __user *code = NULL;
+        int probed = 0;
+        int i;
+
+        if (!msg->msg_iov)
+                return;
+
+        for (i = 0; i < msg->msg_iovlen; i++) {
+                iov = &msg->msg_iov[i];
+                if (!iov)
+                        continue;
+
+                switch (fl->proto) {
+                case IPPROTO_ICMP:
+                        /* check if one-byte field is readable or not. */
+                        if (iov->iov_base && iov->iov_len < 1)
+                                break;
+
+                        if (!type) {
+                                type = iov->iov_base;
+                                /* check if code field is readable or not. */
+                                if (iov->iov_len > 1)
+                                        code = type + 1;
+                        } else if (!code)
+                                code = iov->iov_base;
+
+                        if (type && code) {
+                                get_user(fl->fl_icmp_type, type);
+                                __get_user(fl->fl_icmp_code, code);
+                                probed = 1;
+                        }
+                        break;
+                default:
+                        probed = 1;
+                        break;
+                }
+                if (probed)
+                        break;
+        }
+}
+
+static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+                       size_t len)
+{
+        struct inet_sock *inet = inet_sk(sk);
+        struct ipcm_cookie ipc;
+        struct rtable *rt = NULL;
+        int free = 0;
+        u32 daddr;
+        u32 saddr;
+        u8  tos;
+        int err;
+
+        err = -EMSGSIZE;
+        if (len < 0 || len > 0xFFFF)
+                goto out;
+
+        /*
+         *      Check the flags.
+         */
+
+        err = -EOPNOTSUPP;
+        if (msg->msg_flags & MSG_OOB)   /* Mirror BSD error message */
+                goto out;               /* compatibility */
+                         
+        /*
+         *      Get and verify the address. 
+         */
+
+        if (msg->msg_namelen) {
+                struct sockaddr_in *usin = (struct sockaddr_in*)msg->msg_name;
+                err = -EINVAL;
+                if (msg->msg_namelen < sizeof(*usin))
+                        goto out;
+                if (usin->sin_family != AF_INET) {
+                        static int complained;
+                        if (!complained++)
+                                printk(KERN_INFO "%s forgot to set AF_INET in "
+                                                 "raw sendmsg. Fix it!\n",
+                                                 current->comm);
+                        err = -EAFNOSUPPORT;
+                        if (usin->sin_family)
+                                goto out;
+                }
+                daddr = usin->sin_addr.s_addr;
+                /* ANK: I did not forget to get protocol from port field.
+                 * I just do not know, who uses this weirdness.
+                 * IP_HDRINCL is much more convenient.
+                 */
+        } else {
+                err = -EDESTADDRREQ;
+                if (sk->sk_state != TCP_ESTABLISHED) 
+                        goto out;
+                daddr = inet->daddr;
+        }
+
+        ipc.addr = inet->saddr;
+        ipc.opt = NULL;
+        ipc.oif = sk->sk_bound_dev_if;
+
+        if (msg->msg_controllen) {
+                err = ip_cmsg_send(msg, &ipc);
+                if (err)
+                        goto out;
+                if (ipc.opt)
+                        free = 1;
+        }
+
+        saddr = ipc.addr;
+        ipc.addr = daddr;
+
+        if (!ipc.opt)
+                ipc.opt = inet->opt;
+
+        if (ipc.opt) {
+                err = -EINVAL;
+                /* Linux does not mangle headers on raw sockets,
+                 * so that IP options + IP_HDRINCL is non-sense.
+                 */
+                if (inet->hdrincl)
+                        goto done;
+                if (ipc.opt->srr) {
+                        if (!daddr)
+                                goto done;
+                        daddr = ipc.opt->faddr;
+                }
+        }
+        tos = RT_CONN_FLAGS(sk);
+        if (msg->msg_flags & MSG_DONTROUTE)
+                tos |= RTO_ONLINK;
+
+        if (MULTICAST(daddr)) {
+                if (!ipc.oif)
+                        ipc.oif = inet->mc_index;
+                if (!saddr)
+                        saddr = inet->mc_addr;
+        }
+
+        {
+                struct flowi fl = { .oif = ipc.oif,
+                                    .nl_u = { .ip4_u =
+                                              { .daddr = daddr,
+                                                .saddr = saddr,
+                                                .tos = tos } },
+                                    .proto = inet->hdrincl ? IPPROTO_RAW :
+                                                             sk->sk_protocol,
+                                  };
+                if (!inet->hdrincl)
+                        raw_probe_proto_opt(&fl, msg);
+
+                err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT));
+        }
+        if (err)
+                goto done;
+
+        err = -EACCES;
+        if (rt->rt_flags & RTCF_BROADCAST && !sock_flag(sk, SOCK_BROADCAST))
+                goto done;
+
+        if (msg->msg_flags & MSG_CONFIRM)
+                goto do_confirm;
+back_from_confirm:
+
+        if (inet->hdrincl)
+                err = raw_send_hdrinc(sk, msg->msg_iov, len, 
+                                        rt, msg->msg_flags);
+        
+         else {
+                if (!ipc.addr)
+                        ipc.addr = rt->rt_dst;
+                lock_sock(sk);
+                err = ip_append_data(sk, ip_generic_getfrag, msg->msg_iov, len, 0,
+                                        &ipc, rt, msg->msg_flags);
+                if (err)
+                        ip_flush_pending_frames(sk);
+                else if (!(msg->msg_flags & MSG_MORE))
+                        err = ip_push_pending_frames(sk);
+                release_sock(sk);
+        }
+done:
+        if (free)
+                kfree(ipc.opt);
+        ip_rt_put(rt);
+
+out:    return err < 0 ? err : len;
+
+do_confirm:
+        dst_confirm(&rt->u.dst);
+        if (!(msg->msg_flags & MSG_PROBE) || len)
+                goto back_from_confirm;
+        err = 0;
+        goto done;
+}
+
+static void raw_close(struct sock *sk, long timeout)
+{
+        /*
+         * Raw sockets may have direct kernel refereneces. Kill them.
+         */
+        ip_ra_control(sk, 0, NULL);
+
+        sk_common_release(sk);
+}
+
+/* This gets rid of all the nasties in af_inet. -DaveM */
+static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+{
+        struct inet_sock *inet = inet_sk(sk);
+        struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
+        int ret = -EINVAL;
+        int chk_addr_ret;
+
+        if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
+                goto out;
+        chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr);
+        ret = -EADDRNOTAVAIL;
+        if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
+            chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
+                goto out;
+        inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
+        if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
+                inet->saddr = 0;  /* Use device */
+        sk_dst_reset(sk);
+        ret = 0;
+out:    return ret;
+}
+
+/*
+ *      This should be easy, if there is something there
+ *      we return it, otherwise we block.
+ */
+
+static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+                       size_t len, int noblock, int flags, int *addr_len)
+{
+        struct inet_sock *inet = inet_sk(sk);
+        size_t copied = 0;
+        int err = -EOPNOTSUPP;
+        struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
+        struct sk_buff *skb;
+
+        if (flags & MSG_OOB)
+                goto out;
+
+        if (addr_len)
+                *addr_len = sizeof(*sin);
+
+        if (flags & MSG_ERRQUEUE) {
+                err = ip_recv_error(sk, msg, len);
+                goto out;
+        }
+
+        skb = skb_recv_datagram(sk, flags, noblock, &err);
+        if (!skb)
+                goto out;
+
+        copied = skb->len;
+        if (len < copied) {
+                msg->msg_flags |= MSG_TRUNC;
+                copied = len;
+        }
+
+        err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+        if (err)
+                goto done;
+
+        sock_recv_timestamp(msg, sk, skb);
+
+        /* Copy the address. */
+        if (sin) {
+                sin->sin_family = AF_INET;
+                sin->sin_addr.s_addr = skb->nh.iph->saddr;
+                memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
+        }
+        if (inet->cmsg_flags)
+                ip_cmsg_recv(msg, skb);
+        if (flags & MSG_TRUNC)
+                copied = skb->len;
+done:
+        skb_free_datagram(sk, skb);
+out:    return err ? err : copied;
+}
+
+static int raw_init(struct sock *sk)
+{
+        struct raw_sock *rp = raw_sk(sk);
+
+        if (inet_sk(sk)->num == IPPROTO_ICMP)
+                memset(&rp->filter, 0, sizeof(rp->filter));
+        return 0;
+}
+
+static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
+{
+        if (optlen > sizeof(struct icmp_filter))
+                optlen = sizeof(struct icmp_filter);
+        if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
+                return -EFAULT;
+        return 0;
+}
+
+static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
+{
+        int len, ret = -EFAULT;
+
+        if (get_user(len, optlen))
+                goto out;
+        ret = -EINVAL;
+        if (len < 0)
+                goto out;
+        if (len > sizeof(struct icmp_filter))
+                len = sizeof(struct icmp_filter);
+        ret = -EFAULT;
+        if (put_user(len, optlen) ||
+            copy_to_user(optval, &raw_sk(sk)->filter, len))
+                goto out;
+        ret = 0;
+out:    return ret;
+}
+
+static int raw_setsockopt(struct sock *sk, int level, int optname, 
+                          char __user *optval, int optlen)
+{
+        if (level != SOL_RAW)
+                return ip_setsockopt(sk, level, optname, optval, optlen);
+
+        if (optname == ICMP_FILTER) {
+                if (inet_sk(sk)->num != IPPROTO_ICMP)
+                        return -EOPNOTSUPP;
+                else
+                        return raw_seticmpfilter(sk, optval, optlen);
+        }
+        return -ENOPROTOOPT;
+}
+
+static int raw_getsockopt(struct sock *sk, int level, int optname, 
+                          char __user *optval, int __user *optlen)
+{
+        if (level != SOL_RAW)
+                return ip_getsockopt(sk, level, optname, optval, optlen);
+
+        if (optname == ICMP_FILTER) {
+                if (inet_sk(sk)->num != IPPROTO_ICMP)
+                        return -EOPNOTSUPP;
+                else
+                        return raw_geticmpfilter(sk, optval, optlen);
+        }
+        return -ENOPROTOOPT;
+}
+
+static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+        switch (cmd) {
+                case SIOCOUTQ: {
+                        int amount = atomic_read(&sk->sk_wmem_alloc);
+                        return put_user(amount, (int __user *)arg);
+                }
+                case SIOCINQ: {
+                        struct sk_buff *skb;
+                        int amount = 0;
+
+                        spin_lock_irq(&sk->sk_receive_queue.lock);
+                        skb = skb_peek(&sk->sk_receive_queue);
+                        if (skb != NULL)
+                                amount = skb->len;
+                        spin_unlock_irq(&sk->sk_receive_queue.lock);
+                        return put_user(amount, (int __user *)arg);
+                }
+
+                default:
+#ifdef CONFIG_IP_MROUTE
+                        return ipmr_ioctl(sk, cmd, (void __user *)arg);
+#else
+                        return -ENOIOCTLCMD;
+#endif
+        }
+}
+
+struct proto raw_prot = {
+        .name =         "RAW",
+        .owner =        THIS_MODULE,
+        .close =        raw_close,
+        .connect =      ip4_datagram_connect,
+        .disconnect =   udp_disconnect,
+        .ioctl =        raw_ioctl,
+        .init =         raw_init,
+        .setsockopt =   raw_setsockopt,
+        .getsockopt =   raw_getsockopt,
+        .sendmsg =      raw_sendmsg,
+        .recvmsg =      raw_recvmsg,
+        .bind =         raw_bind,
+        .backlog_rcv =  raw_rcv_skb,
+        .hash =         raw_v4_hash,
+        .unhash =       raw_v4_unhash,
+        .obj_size =     sizeof(struct raw_sock),
+};
+
+#ifdef CONFIG_PROC_FS
+struct raw_iter_state {
+        int bucket;
+};
+
+#define raw_seq_private(seq) ((struct raw_iter_state *)(seq)->private)
+
+static struct sock *raw_get_first(struct seq_file *seq)
+{
+        struct sock *sk;
+        struct raw_iter_state* state = raw_seq_private(seq);
+
+        for (state->bucket = 0; state->bucket < RAWV4_HTABLE_SIZE; ++state->bucket) {
+                struct hlist_node *node;
+
+                sk_for_each(sk, node, &raw_v4_htable[state->bucket])
+                        if (sk->sk_family == PF_INET)
+                                goto found;
+        }
+        sk = NULL;
+found:
+        return sk;
+}
+
+static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
+{
+        struct raw_iter_state* state = raw_seq_private(seq);
+
+        do {
+                sk = sk_next(sk);
+try_again:
+                ;
+        } while (sk && sk->sk_family != PF_INET);
+
+        if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) {
+                sk = sk_head(&raw_v4_htable[state->bucket]);
+                goto try_again;
+        }
+        return sk;
+}
+
+static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos)
+{
+        struct sock *sk = raw_get_first(seq);
+
+        if (sk)
+                while (pos && (sk = raw_get_next(seq, sk)) != NULL)
+                        --pos;
+        return pos ? NULL : sk;
+}
+
+static void *raw_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        read_lock(&raw_v4_lock);
+        return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        struct sock *sk;
+
+        if (v == SEQ_START_TOKEN)
+                sk = raw_get_first(seq);
+        else
+                sk = raw_get_next(seq, v);
+        ++*pos;
+        return sk;
+}
+
+static void raw_seq_stop(struct seq_file *seq, void *v)
+{
+        read_unlock(&raw_v4_lock);
+}
+
+static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i)
+{
+        struct inet_sock *inet = inet_sk(sp);
+        unsigned int dest = inet->daddr,
+                     src = inet->rcv_saddr;
+        __u16 destp = 0,
+              srcp  = inet->num;
+
+        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
+                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p",
+                i, src, srcp, dest, destp, sp->sk_state, 
+                atomic_read(&sp->sk_wmem_alloc),
+                atomic_read(&sp->sk_rmem_alloc),
+                0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
+                atomic_read(&sp->sk_refcnt), sp);
+        return tmpbuf;
+}
+
+static int raw_seq_show(struct seq_file *seq, void *v)
+{
+        char tmpbuf[129];
+
+        if (v == SEQ_START_TOKEN)
+                seq_printf(seq, "%-127s\n",
+                               "  sl  local_address rem_address   st tx_queue "
+                               "rx_queue tr tm->when retrnsmt   uid  timeout "
+                               "inode");
+        else {
+                struct raw_iter_state *state = raw_seq_private(seq);
+
+                seq_printf(seq, "%-127s\n",
+                           get_raw_sock(v, tmpbuf, state->bucket));
+        }
+        return 0;
+}
+
+static struct seq_operations raw_seq_ops = {
+        .start = raw_seq_start,
+        .next  = raw_seq_next,
+        .stop  = raw_seq_stop,
+        .show  = raw_seq_show,
+};
+
+static int raw_seq_open(struct inode *inode, struct file *file)
+{
+        struct seq_file *seq;
+        int rc = -ENOMEM;
+        struct raw_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+
+        if (!s)
+                goto out;
+        rc = seq_open(file, &raw_seq_ops);
+        if (rc)
+                goto out_kfree;
+
+        seq = file->private_data;
+        seq->private = s;
+        memset(s, 0, sizeof(*s));
+out:
+        return rc;
+out_kfree:
+        kfree(s);
+        goto out;
+}
+
+static struct file_operations raw_seq_fops = {
+        .owner   = THIS_MODULE,
+        .open    = raw_seq_open,
+        .read    = seq_read,
+        .llseek  = seq_lseek,
+        .release = seq_release_private,
+};
+
+int __init raw_proc_init(void)
+{
+        if (!proc_net_fops_create("raw", S_IRUGO, &raw_seq_fops))
+                return -ENOMEM;
+        return 0;
+}
+
+void __init raw_proc_exit(void)
+{
+        proc_net_remove("raw");
+}
+#endif /* CONFIG_PROC_FS */