2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
6 * RAW - implementation of IP "raw" sockets.
9 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * Alan Cox : verify_area() fixed up
13 * Alan Cox : ICMP error handling
14 * Alan Cox : EMSGSIZE if you send too big a packet
15 * Alan Cox : Now uses generic datagrams and shared
16 * skbuff library. No more peek crashes,
18 * Alan Cox : Checks sk->broadcast.
19 * Alan Cox : Uses skb_free_datagram/skb_copy_datagram
20 * Alan Cox : Raw passes ip options too
21 * Alan Cox : Setsocketopt added
22 * Alan Cox : Fixed error return for broadcasts
23 * Alan Cox : Removed wake_up calls
24 * Alan Cox : Use ttl/tos
25 * Alan Cox : Cleaned up old debugging
26 * Alan Cox : Use new kernel side addresses
27 * Arnt Gulbrandsen : Fixed MSG_DONTROUTE in raw sockets.
28 * Alan Cox : BSD style RAW socket demultiplexing.
29 * Alan Cox : Beginnings of mrouted support.
30 * Alan Cox : Added IP_HDRINCL option.
31 * Alan Cox : Skip broadcast check if BSDism set.
32 * David S. Miller : New socket lookup architecture.
34 * This program is free software; you can redistribute it and/or
35 * modify it under the terms of the GNU General Public License
36 * as published by the Free Software Foundation; either version
37 * 2 of the License, or (at your option) any later version.
40 #include <linux/types.h>
41 #include <linux/atomic.h>
42 #include <asm/byteorder.h>
43 #include <asm/current.h>
44 #include <asm/uaccess.h>
45 #include <asm/ioctls.h>
46 #include <linux/stddef.h>
47 #include <linux/slab.h>
48 #include <linux/errno.h>
49 #include <linux/aio.h>
50 #include <linux/kernel.h>
51 #include <linux/export.h>
52 #include <linux/spinlock.h>
53 #include <linux/sockios.h>
54 #include <linux/socket.h>
56 #include <linux/mroute.h>
57 #include <linux/netdevice.h>
58 #include <linux/in_route.h>
59 #include <linux/route.h>
60 #include <linux/skbuff.h>
61 #include <net/net_namespace.h>
65 #include <linux/net.h>
71 #include <net/tcp_states.h>
72 #include <net/inet_common.h>
73 #include <net/checksum.h>
75 #include <linux/rtnetlink.h>
76 #include <linux/proc_fs.h>
77 #include <linux/seq_file.h>
78 #include <linux/netfilter.h>
79 #include <linux/netfilter_ipv4.h>
80 #include <linux/compat.h>
82 static struct raw_hashinfo raw_v4_hashinfo = {
83 .lock = __RW_LOCK_UNLOCKED(raw_v4_hashinfo.lock),
86 void raw_hash_sk(struct sock *sk)
88 struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
89 struct hlist_head *head;
91 head = &h->ht[inet_sk(sk)->inet_num & (RAW_HTABLE_SIZE - 1)];
93 write_lock_bh(&h->lock);
94 sk_add_node(sk, head);
95 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
96 write_unlock_bh(&h->lock);
98 EXPORT_SYMBOL_GPL(raw_hash_sk);
100 void raw_unhash_sk(struct sock *sk)
102 struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
104 write_lock_bh(&h->lock);
105 if (sk_del_node_init(sk))
106 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
107 write_unlock_bh(&h->lock);
109 EXPORT_SYMBOL_GPL(raw_unhash_sk);
111 static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
112 unsigned short num, __be32 raddr, __be32 laddr, int dif)
114 struct hlist_node *node;
116 sk_for_each_from(sk, node) {
117 struct inet_sock *inet = inet_sk(sk);
119 if (net_eq(sock_net(sk), net) && inet->inet_num == num &&
120 !(inet->inet_daddr && inet->inet_daddr != raddr) &&
121 !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) &&
122 !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
123 goto found; /* gotcha */
134 static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
138 if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
141 type = icmp_hdr(skb)->type;
143 __u32 data = raw_sk(sk)->filter.data;
145 return ((1 << type) & data) != 0;
148 /* Do not block unknown ICMP types */
152 /* IP input processing comes here for RAW socket delivery.
153 * Caller owns SKB, so we must make clones.
155 * RFC 1122: SHOULD pass TOS value up to the transport layer.
156 * -> It does. And not only TOS, but all IP header.
158 static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash)
161 struct hlist_head *head;
165 read_lock(&raw_v4_hashinfo.lock);
166 head = &raw_v4_hashinfo.ht[hash];
167 if (hlist_empty(head))
170 net = dev_net(skb->dev);
171 sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol,
172 iph->saddr, iph->daddr,
177 if (iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) {
178 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
180 /* Not releasing hash table! */
184 sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
185 iph->saddr, iph->daddr,
189 read_unlock(&raw_v4_hashinfo.lock);
193 int raw_local_deliver(struct sk_buff *skb, int protocol)
198 hash = protocol & (RAW_HTABLE_SIZE - 1);
199 raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
201 /* If there maybe a raw socket we must check - if not we
204 if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash))
207 return raw_sk != NULL;
211 static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info)
213 struct inet_sock *inet = inet_sk(sk);
214 const int type = icmp_hdr(skb)->type;
215 const int code = icmp_hdr(skb)->code;
219 /* Report error on raw socket, if:
220 1. User requested ip_recverr.
221 2. Socket is connected (otherwise the error indication
222 is useless without ip_recverr and error is hard.
224 if (!inet->recverr && sk->sk_state != TCP_ESTABLISHED)
229 case ICMP_TIME_EXCEEDED:
232 case ICMP_SOURCE_QUENCH:
234 case ICMP_PARAMETERPROB:
238 case ICMP_DEST_UNREACH:
240 if (code > NR_ICMP_UNREACH)
242 err = icmp_err_convert[code].errno;
243 harderr = icmp_err_convert[code].fatal;
244 if (code == ICMP_FRAG_NEEDED) {
245 harderr = inet->pmtudisc != IP_PMTUDISC_DONT;
251 const struct iphdr *iph = (const struct iphdr *)skb->data;
252 u8 *payload = skb->data + (iph->ihl << 2);
256 ip_icmp_error(sk, skb, err, 0, info, payload);
259 if (inet->recverr || harderr) {
261 sk->sk_error_report(sk);
265 void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
269 const struct iphdr *iph;
272 hash = protocol & (RAW_HTABLE_SIZE - 1);
274 read_lock(&raw_v4_hashinfo.lock);
275 raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
276 if (raw_sk != NULL) {
277 iph = (const struct iphdr *)skb->data;
278 net = dev_net(skb->dev);
280 while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol,
281 iph->daddr, iph->saddr,
282 skb->dev->ifindex)) != NULL) {
283 raw_err(raw_sk, skb, info);
284 raw_sk = sk_next(raw_sk);
285 iph = (const struct iphdr *)skb->data;
288 read_unlock(&raw_v4_hashinfo.lock);
291 static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb)
293 /* Charge it to the socket. */
295 ipv4_pktinfo_prepare(skb);
296 if (sock_queue_rcv_skb(sk, skb) < 0) {
301 return NET_RX_SUCCESS;
304 int raw_rcv(struct sock *sk, struct sk_buff *skb)
306 if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
307 atomic_inc(&sk->sk_drops);
313 skb_push(skb, skb->data - skb_network_header(skb));
315 raw_rcv_skb(sk, skb);
319 static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
320 void *from, size_t length,
324 struct inet_sock *inet = inet_sk(sk);
325 struct net *net = sock_net(sk);
330 struct rtable *rt = *rtp;
333 if (length > rt->dst.dev->mtu) {
334 ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport,
341 hlen = LL_RESERVED_SPACE(rt->dst.dev);
342 tlen = rt->dst.dev->needed_tailroom;
343 skb = sock_alloc_send_skb(sk,
344 length + hlen + tlen + 15,
345 flags & MSG_DONTWAIT, &err);
348 skb_reserve(skb, hlen);
350 skb->priority = sk->sk_priority;
351 skb->mark = sk->sk_mark;
352 skb_dst_set(skb, &rt->dst);
355 skb_reset_network_header(skb);
357 skb_put(skb, length);
359 skb->ip_summed = CHECKSUM_NONE;
361 skb->transport_header = skb->network_header;
363 if (memcpy_fromiovecend((void *)iph, from, 0, length))
366 iphlen = iph->ihl * 4;
369 * We don't want to modify the ip header, but we do need to
370 * be sure that it won't cause problems later along the network
371 * stack. Specifically we want to make sure that iph->ihl is a
372 * sane value. If ihl points beyond the length of the buffer passed
373 * in, reject the frame as invalid
379 if (iphlen >= sizeof(*iph)) {
381 iph->saddr = fl4->saddr;
383 iph->tot_len = htons(length);
385 ip_select_ident(iph, &rt->dst, NULL);
387 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
389 if (iph->protocol == IPPROTO_ICMP)
390 icmp_out_count(net, ((struct icmphdr *)
391 skb_transport_header(skb))->type);
393 err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, skb, NULL,
394 rt->dst.dev, dst_output);
396 err = net_xmit_errno(err);
405 IP_INC_STATS(net, IPSTATS_MIB_OUTDISCARDS);
406 if (err == -ENOBUFS && !inet->recverr)
411 static int raw_probe_proto_opt(struct flowi4 *fl4, struct msghdr *msg)
414 u8 __user *type = NULL;
415 u8 __user *code = NULL;
422 for (i = 0; i < msg->msg_iovlen; i++) {
423 iov = &msg->msg_iov[i];
427 switch (fl4->flowi4_proto) {
429 /* check if one-byte field is readable or not. */
430 if (iov->iov_base && iov->iov_len < 1)
434 type = iov->iov_base;
435 /* check if code field is readable or not. */
436 if (iov->iov_len > 1)
439 code = iov->iov_base;
442 if (get_user(fl4->fl4_icmp_type, type) ||
443 get_user(fl4->fl4_icmp_code, code))
458 static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
461 struct inet_sock *inet = inet_sk(sk);
462 struct ipcm_cookie ipc;
463 struct rtable *rt = NULL;
470 struct ip_options_data opt_copy;
481 if (msg->msg_flags & MSG_OOB) /* Mirror BSD error message */
482 goto out; /* compatibility */
485 * Get and verify the address.
488 if (msg->msg_namelen) {
489 struct sockaddr_in *usin = (struct sockaddr_in *)msg->msg_name;
491 if (msg->msg_namelen < sizeof(*usin))
493 if (usin->sin_family != AF_INET) {
494 static int complained;
496 printk(KERN_INFO "%s forgot to set AF_INET in "
497 "raw sendmsg. Fix it!\n",
500 if (usin->sin_family)
503 daddr = usin->sin_addr.s_addr;
504 /* ANK: I did not forget to get protocol from port field.
505 * I just do not know, who uses this weirdness.
506 * IP_HDRINCL is much more convenient.
510 if (sk->sk_state != TCP_ESTABLISHED)
512 daddr = inet->inet_daddr;
515 ipc.addr = inet->inet_saddr;
518 ipc.oif = sk->sk_bound_dev_if;
520 if (msg->msg_controllen) {
521 err = ip_cmsg_send(sock_net(sk), msg, &ipc);
532 struct ip_options_rcu *inet_opt;
535 inet_opt = rcu_dereference(inet->inet_opt);
537 memcpy(&opt_copy, inet_opt,
538 sizeof(*inet_opt) + inet_opt->opt.optlen);
539 ipc.opt = &opt_copy.opt;
546 /* Linux does not mangle headers on raw sockets,
547 * so that IP options + IP_HDRINCL is non-sense.
551 if (ipc.opt->opt.srr) {
554 daddr = ipc.opt->opt.faddr;
557 tos = RT_CONN_FLAGS(sk);
558 if (msg->msg_flags & MSG_DONTROUTE)
561 if (ipv4_is_multicast(daddr)) {
563 ipc.oif = inet->mc_index;
565 saddr = inet->mc_addr;
567 ipc.oif = inet->uc_index;
569 flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
571 inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol,
572 inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP,
575 if (!inet->hdrincl) {
576 err = raw_probe_proto_opt(&fl4, msg);
581 security_sk_classify_flow(sk, flowi4_to_flowi(&fl4));
582 rt = ip_route_output_flow(sock_net(sk), &fl4, sk);
590 if (rt->rt_flags & RTCF_BROADCAST && !sock_flag(sk, SOCK_BROADCAST))
593 if (msg->msg_flags & MSG_CONFIRM)
598 err = raw_send_hdrinc(sk, &fl4, msg->msg_iov, len,
599 &rt, msg->msg_flags);
603 ipc.addr = fl4.daddr;
605 err = ip_append_data(sk, &fl4, ip_generic_getfrag,
606 msg->msg_iov, len, 0,
607 &ipc, &rt, msg->msg_flags);
609 ip_flush_pending_frames(sk);
610 else if (!(msg->msg_flags & MSG_MORE)) {
611 err = ip_push_pending_frames(sk, &fl4);
612 if (err == -ENOBUFS && !inet->recverr)
628 dst_confirm(&rt->dst);
629 if (!(msg->msg_flags & MSG_PROBE) || len)
630 goto back_from_confirm;
635 static void raw_close(struct sock *sk, long timeout)
638 * Raw sockets may have direct kernel references. Kill them.
640 ip_ra_control(sk, 0, NULL);
642 sk_common_release(sk);
645 static void raw_destroy(struct sock *sk)
648 ip_flush_pending_frames(sk);
652 /* This gets rid of all the nasties in af_inet. -DaveM */
653 static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
655 struct inet_sock *inet = inet_sk(sk);
656 struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
660 if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
662 chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
663 ret = -EADDRNOTAVAIL;
664 if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
665 chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
667 inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr;
668 if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
669 inet->inet_saddr = 0; /* Use device */
676 * This should be easy, if there is something there
677 * we return it, otherwise we block.
680 static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
681 size_t len, int noblock, int flags, int *addr_len)
683 struct inet_sock *inet = inet_sk(sk);
685 int err = -EOPNOTSUPP;
686 struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
693 *addr_len = sizeof(*sin);
695 if (flags & MSG_ERRQUEUE) {
696 err = ip_recv_error(sk, msg, len);
700 skb = skb_recv_datagram(sk, flags, noblock, &err);
706 msg->msg_flags |= MSG_TRUNC;
710 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
714 sock_recv_ts_and_drops(msg, sk, skb);
716 /* Copy the address. */
718 sin->sin_family = AF_INET;
719 sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
721 memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
723 if (inet->cmsg_flags)
724 ip_cmsg_recv(msg, skb);
725 if (flags & MSG_TRUNC)
728 skb_free_datagram(sk, skb);
735 static int raw_init(struct sock *sk)
737 struct raw_sock *rp = raw_sk(sk);
739 if (inet_sk(sk)->inet_num == IPPROTO_ICMP)
740 memset(&rp->filter, 0, sizeof(rp->filter));
744 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
746 if (optlen > sizeof(struct icmp_filter))
747 optlen = sizeof(struct icmp_filter);
748 if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
753 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
755 int len, ret = -EFAULT;
757 if (get_user(len, optlen))
762 if (len > sizeof(struct icmp_filter))
763 len = sizeof(struct icmp_filter);
765 if (put_user(len, optlen) ||
766 copy_to_user(optval, &raw_sk(sk)->filter, len))
772 static int do_raw_setsockopt(struct sock *sk, int level, int optname,
773 char __user *optval, unsigned int optlen)
775 if (optname == ICMP_FILTER) {
776 if (inet_sk(sk)->inet_num != IPPROTO_ICMP)
779 return raw_seticmpfilter(sk, optval, optlen);
784 static int raw_setsockopt(struct sock *sk, int level, int optname,
785 char __user *optval, unsigned int optlen)
787 if (level != SOL_RAW)
788 return ip_setsockopt(sk, level, optname, optval, optlen);
789 return do_raw_setsockopt(sk, level, optname, optval, optlen);
793 static int compat_raw_setsockopt(struct sock *sk, int level, int optname,
794 char __user *optval, unsigned int optlen)
796 if (level != SOL_RAW)
797 return compat_ip_setsockopt(sk, level, optname, optval, optlen);
798 return do_raw_setsockopt(sk, level, optname, optval, optlen);
802 static int do_raw_getsockopt(struct sock *sk, int level, int optname,
803 char __user *optval, int __user *optlen)
805 if (optname == ICMP_FILTER) {
806 if (inet_sk(sk)->inet_num != IPPROTO_ICMP)
809 return raw_geticmpfilter(sk, optval, optlen);
814 static int raw_getsockopt(struct sock *sk, int level, int optname,
815 char __user *optval, int __user *optlen)
817 if (level != SOL_RAW)
818 return ip_getsockopt(sk, level, optname, optval, optlen);
819 return do_raw_getsockopt(sk, level, optname, optval, optlen);
823 static int compat_raw_getsockopt(struct sock *sk, int level, int optname,
824 char __user *optval, int __user *optlen)
826 if (level != SOL_RAW)
827 return compat_ip_getsockopt(sk, level, optname, optval, optlen);
828 return do_raw_getsockopt(sk, level, optname, optval, optlen);
832 static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
836 int amount = sk_wmem_alloc_get(sk);
838 return put_user(amount, (int __user *)arg);
844 spin_lock_bh(&sk->sk_receive_queue.lock);
845 skb = skb_peek(&sk->sk_receive_queue);
848 spin_unlock_bh(&sk->sk_receive_queue.lock);
849 return put_user(amount, (int __user *)arg);
853 #ifdef CONFIG_IP_MROUTE
854 return ipmr_ioctl(sk, cmd, (void __user *)arg);
862 static int compat_raw_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
869 #ifdef CONFIG_IP_MROUTE
870 return ipmr_compat_ioctl(sk, cmd, compat_ptr(arg));
878 struct proto raw_prot = {
880 .owner = THIS_MODULE,
882 .destroy = raw_destroy,
883 .connect = ip4_datagram_connect,
884 .disconnect = udp_disconnect,
887 .setsockopt = raw_setsockopt,
888 .getsockopt = raw_getsockopt,
889 .sendmsg = raw_sendmsg,
890 .recvmsg = raw_recvmsg,
892 .backlog_rcv = raw_rcv_skb,
894 .unhash = raw_unhash_sk,
895 .obj_size = sizeof(struct raw_sock),
896 .h.raw_hash = &raw_v4_hashinfo,
898 .compat_setsockopt = compat_raw_setsockopt,
899 .compat_getsockopt = compat_raw_getsockopt,
900 .compat_ioctl = compat_raw_ioctl,
904 #ifdef CONFIG_PROC_FS
905 static struct sock *raw_get_first(struct seq_file *seq)
908 struct raw_iter_state *state = raw_seq_private(seq);
910 for (state->bucket = 0; state->bucket < RAW_HTABLE_SIZE;
912 struct hlist_node *node;
914 sk_for_each(sk, node, &state->h->ht[state->bucket])
915 if (sock_net(sk) == seq_file_net(seq))
923 static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
925 struct raw_iter_state *state = raw_seq_private(seq);
931 } while (sk && sock_net(sk) != seq_file_net(seq));
933 if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
934 sk = sk_head(&state->h->ht[state->bucket]);
940 static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos)
942 struct sock *sk = raw_get_first(seq);
945 while (pos && (sk = raw_get_next(seq, sk)) != NULL)
947 return pos ? NULL : sk;
950 void *raw_seq_start(struct seq_file *seq, loff_t *pos)
952 struct raw_iter_state *state = raw_seq_private(seq);
954 read_lock(&state->h->lock);
955 return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
957 EXPORT_SYMBOL_GPL(raw_seq_start);
959 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos)
963 if (v == SEQ_START_TOKEN)
964 sk = raw_get_first(seq);
966 sk = raw_get_next(seq, v);
970 EXPORT_SYMBOL_GPL(raw_seq_next);
972 void raw_seq_stop(struct seq_file *seq, void *v)
974 struct raw_iter_state *state = raw_seq_private(seq);
976 read_unlock(&state->h->lock);
978 EXPORT_SYMBOL_GPL(raw_seq_stop);
980 static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
982 struct inet_sock *inet = inet_sk(sp);
983 __be32 dest = inet->inet_daddr,
984 src = inet->inet_rcv_saddr;
986 srcp = inet->inet_num;
988 seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
989 " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
990 i, src, srcp, dest, destp, sp->sk_state,
991 sk_wmem_alloc_get(sp),
992 sk_rmem_alloc_get(sp),
993 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
994 atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
997 static int raw_seq_show(struct seq_file *seq, void *v)
999 if (v == SEQ_START_TOKEN)
1000 seq_printf(seq, " sl local_address rem_address st tx_queue "
1001 "rx_queue tr tm->when retrnsmt uid timeout "
1002 "inode ref pointer drops\n");
1004 raw_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
1008 static const struct seq_operations raw_seq_ops = {
1009 .start = raw_seq_start,
1010 .next = raw_seq_next,
1011 .stop = raw_seq_stop,
1012 .show = raw_seq_show,
1015 int raw_seq_open(struct inode *ino, struct file *file,
1016 struct raw_hashinfo *h, const struct seq_operations *ops)
1019 struct raw_iter_state *i;
1021 err = seq_open_net(ino, file, ops, sizeof(struct raw_iter_state));
1025 i = raw_seq_private((struct seq_file *)file->private_data);
1029 EXPORT_SYMBOL_GPL(raw_seq_open);
1031 static int raw_v4_seq_open(struct inode *inode, struct file *file)
1033 return raw_seq_open(inode, file, &raw_v4_hashinfo, &raw_seq_ops);
1036 static const struct file_operations raw_seq_fops = {
1037 .owner = THIS_MODULE,
1038 .open = raw_v4_seq_open,
1040 .llseek = seq_lseek,
1041 .release = seq_release_net,
1044 static __net_init int raw_init_net(struct net *net)
1046 if (!proc_net_fops_create(net, "raw", S_IRUGO, &raw_seq_fops))
1052 static __net_exit void raw_exit_net(struct net *net)
1054 proc_net_remove(net, "raw");
1057 static __net_initdata struct pernet_operations raw_net_ops = {
1058 .init = raw_init_net,
1059 .exit = raw_exit_net,
1062 int __init raw_proc_init(void)
1064 return register_pernet_subsys(&raw_net_ops);
1067 void __init raw_proc_exit(void)
1069 unregister_pernet_subsys(&raw_net_ops);
1071 #endif /* CONFIG_PROC_FS */