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>
81 #include <linux/uio.h>
92 static struct raw_hashinfo raw_v4_hashinfo = {
93 .lock = __RW_LOCK_UNLOCKED(raw_v4_hashinfo.lock),
96 void raw_hash_sk(struct sock *sk)
98 struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
99 struct hlist_head *head;
101 head = &h->ht[inet_sk(sk)->inet_num & (RAW_HTABLE_SIZE - 1)];
103 write_lock_bh(&h->lock);
104 sk_add_node(sk, head);
105 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
106 write_unlock_bh(&h->lock);
108 EXPORT_SYMBOL_GPL(raw_hash_sk);
110 void raw_unhash_sk(struct sock *sk)
112 struct raw_hashinfo *h = sk->sk_prot->h.raw_hash;
114 write_lock_bh(&h->lock);
115 if (sk_del_node_init(sk))
116 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
117 write_unlock_bh(&h->lock);
119 EXPORT_SYMBOL_GPL(raw_unhash_sk);
121 static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
122 unsigned short num, __be32 raddr, __be32 laddr, int dif)
124 struct hlist_node *node;
126 sk_for_each_from(sk, node) {
127 struct inet_sock *inet = inet_sk(sk);
129 if (net_eq(sock_net(sk), net) && inet->inet_num == num &&
130 !(inet->inet_daddr && inet->inet_daddr != raddr) &&
131 !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) &&
132 !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
133 goto found; /* gotcha */
144 static int icmp_filter(const struct sock *sk, const struct sk_buff *skb)
147 const struct icmphdr *hdr;
149 hdr = skb_header_pointer(skb, skb_transport_offset(skb),
150 sizeof(_hdr), &_hdr);
154 if (hdr->type < 32) {
155 __u32 data = raw_sk(sk)->filter.data;
157 return ((1U << hdr->type) & data) != 0;
160 /* Do not block unknown ICMP types */
164 /* IP input processing comes here for RAW socket delivery.
165 * Caller owns SKB, so we must make clones.
167 * RFC 1122: SHOULD pass TOS value up to the transport layer.
168 * -> It does. And not only TOS, but all IP header.
170 static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash)
173 struct hlist_head *head;
177 read_lock(&raw_v4_hashinfo.lock);
178 head = &raw_v4_hashinfo.ht[hash];
179 if (hlist_empty(head))
182 net = dev_net(skb->dev);
183 sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol,
184 iph->saddr, iph->daddr,
189 if (iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) {
190 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
192 /* Not releasing hash table! */
196 sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
197 iph->saddr, iph->daddr,
201 read_unlock(&raw_v4_hashinfo.lock);
205 int raw_local_deliver(struct sk_buff *skb, int protocol)
210 hash = protocol & (RAW_HTABLE_SIZE - 1);
211 raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
213 /* If there maybe a raw socket we must check - if not we
216 if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash))
219 return raw_sk != NULL;
223 static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info)
225 struct inet_sock *inet = inet_sk(sk);
226 const int type = icmp_hdr(skb)->type;
227 const int code = icmp_hdr(skb)->code;
231 /* Report error on raw socket, if:
232 1. User requested ip_recverr.
233 2. Socket is connected (otherwise the error indication
234 is useless without ip_recverr and error is hard.
236 if (!inet->recverr && sk->sk_state != TCP_ESTABLISHED)
241 case ICMP_TIME_EXCEEDED:
244 case ICMP_SOURCE_QUENCH:
246 case ICMP_PARAMETERPROB:
250 case ICMP_DEST_UNREACH:
252 if (code > NR_ICMP_UNREACH)
254 err = icmp_err_convert[code].errno;
255 harderr = icmp_err_convert[code].fatal;
256 if (code == ICMP_FRAG_NEEDED) {
257 harderr = inet->pmtudisc != IP_PMTUDISC_DONT;
263 const struct iphdr *iph = (const struct iphdr *)skb->data;
264 u8 *payload = skb->data + (iph->ihl << 2);
268 ip_icmp_error(sk, skb, err, 0, info, payload);
271 if (inet->recverr || harderr) {
273 sk->sk_error_report(sk);
277 void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
281 const struct iphdr *iph;
284 hash = protocol & (RAW_HTABLE_SIZE - 1);
286 read_lock(&raw_v4_hashinfo.lock);
287 raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
288 if (raw_sk != NULL) {
289 iph = (const struct iphdr *)skb->data;
290 net = dev_net(skb->dev);
292 while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol,
293 iph->daddr, iph->saddr,
294 skb->dev->ifindex)) != NULL) {
295 raw_err(raw_sk, skb, info);
296 raw_sk = sk_next(raw_sk);
297 iph = (const struct iphdr *)skb->data;
300 read_unlock(&raw_v4_hashinfo.lock);
303 static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb)
305 /* Charge it to the socket. */
307 if (ip_queue_rcv_skb(sk, skb) < 0) {
312 return NET_RX_SUCCESS;
315 int raw_rcv(struct sock *sk, struct sk_buff *skb)
317 if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
318 atomic_inc(&sk->sk_drops);
324 skb_push(skb, skb->data - skb_network_header(skb));
326 raw_rcv_skb(sk, skb);
330 static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
331 void *from, size_t length,
335 struct inet_sock *inet = inet_sk(sk);
336 struct net *net = sock_net(sk);
341 struct rtable *rt = *rtp;
344 if (length > rt->dst.dev->mtu) {
345 ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport,
352 hlen = LL_RESERVED_SPACE(rt->dst.dev);
353 tlen = rt->dst.dev->needed_tailroom;
354 skb = sock_alloc_send_skb(sk,
355 length + hlen + tlen + 15,
356 flags & MSG_DONTWAIT, &err);
359 skb_reserve(skb, hlen);
361 skb->priority = sk->sk_priority;
362 skb->mark = sk->sk_mark;
363 skb_dst_set(skb, &rt->dst);
366 skb_reset_network_header(skb);
368 skb_put(skb, length);
370 skb->ip_summed = CHECKSUM_NONE;
372 skb->transport_header = skb->network_header;
374 if (memcpy_fromiovecend((void *)iph, from, 0, length))
377 iphlen = iph->ihl * 4;
380 * We don't want to modify the ip header, but we do need to
381 * be sure that it won't cause problems later along the network
382 * stack. Specifically we want to make sure that iph->ihl is a
383 * sane value. If ihl points beyond the length of the buffer passed
384 * in, reject the frame as invalid
390 if (iphlen >= sizeof(*iph)) {
392 iph->saddr = fl4->saddr;
394 iph->tot_len = htons(length);
396 ip_select_ident(skb, NULL);
398 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
400 if (iph->protocol == IPPROTO_ICMP)
401 icmp_out_count(net, ((struct icmphdr *)
402 skb_transport_header(skb))->type);
404 err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, skb, NULL,
405 rt->dst.dev, dst_output);
407 err = net_xmit_errno(err);
416 IP_INC_STATS(net, IPSTATS_MIB_OUTDISCARDS);
417 if (err == -ENOBUFS && !inet->recverr)
422 static int raw_probe_proto_opt(struct raw_frag_vec *rfv, struct flowi4 *fl4)
426 if (fl4->flowi4_proto != IPPROTO_ICMP)
429 /* We only need the first two bytes. */
432 err = memcpy_fromiovec(rfv->hdr.c, rfv->iov, rfv->hlen);
436 fl4->fl4_icmp_type = rfv->hdr.icmph.type;
437 fl4->fl4_icmp_code = rfv->hdr.icmph.code;
442 static int raw_getfrag(void *from, char *to, int offset, int len, int odd,
445 struct raw_frag_vec *rfv = from;
447 if (offset < rfv->hlen) {
448 int copy = min(rfv->hlen - offset, len);
450 if (skb->ip_summed == CHECKSUM_PARTIAL)
451 memcpy(to, rfv->hdr.c + offset, copy);
453 skb->csum = csum_block_add(
455 csum_partial_copy_nocheck(rfv->hdr.c + offset,
470 return ip_generic_getfrag(rfv->iov, to, offset, len, odd, skb);
473 static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
476 struct inet_sock *inet = inet_sk(sk);
477 struct ipcm_cookie ipc;
478 struct rtable *rt = NULL;
485 struct ip_options_data opt_copy;
486 struct raw_frag_vec rfv;
493 /* hdrincl should be READ_ONCE(inet->hdrincl)
494 * but READ_ONCE() doesn't work with bit fields
496 hdrincl = inet->hdrincl;
502 if (msg->msg_flags & MSG_OOB) /* Mirror BSD error message */
503 goto out; /* compatibility */
506 * Get and verify the address.
509 if (msg->msg_namelen) {
510 struct sockaddr_in *usin = (struct sockaddr_in *)msg->msg_name;
512 if (msg->msg_namelen < sizeof(*usin))
514 if (usin->sin_family != AF_INET) {
515 static int complained;
517 printk(KERN_INFO "%s forgot to set AF_INET in "
518 "raw sendmsg. Fix it!\n",
521 if (usin->sin_family)
524 daddr = usin->sin_addr.s_addr;
525 /* ANK: I did not forget to get protocol from port field.
526 * I just do not know, who uses this weirdness.
527 * IP_HDRINCL is much more convenient.
531 if (sk->sk_state != TCP_ESTABLISHED)
533 daddr = inet->inet_daddr;
536 ipc.addr = inet->inet_saddr;
539 ipc.oif = sk->sk_bound_dev_if;
541 if (msg->msg_controllen) {
542 err = ip_cmsg_send(sock_net(sk), msg, &ipc);
555 struct ip_options_rcu *inet_opt;
558 inet_opt = rcu_dereference(inet->inet_opt);
560 memcpy(&opt_copy, inet_opt,
561 sizeof(*inet_opt) + inet_opt->opt.optlen);
562 ipc.opt = &opt_copy.opt;
569 /* Linux does not mangle headers on raw sockets,
570 * so that IP options + IP_HDRINCL is non-sense.
574 if (ipc.opt->opt.srr) {
577 daddr = ipc.opt->opt.faddr;
580 tos = RT_CONN_FLAGS(sk);
581 if (msg->msg_flags & MSG_DONTROUTE)
584 if (ipv4_is_multicast(daddr)) {
586 ipc.oif = inet->mc_index;
588 saddr = inet->mc_addr;
591 flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
593 hdrincl ? IPPROTO_RAW : sk->sk_protocol,
594 inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP,
598 rfv.iov = msg->msg_iov;
601 err = raw_probe_proto_opt(&rfv, &fl4);
606 security_sk_classify_flow(sk, flowi4_to_flowi(&fl4));
607 rt = ip_route_output_flow(sock_net(sk), &fl4, sk);
615 if (rt->rt_flags & RTCF_BROADCAST && !sock_flag(sk, SOCK_BROADCAST))
618 if (msg->msg_flags & MSG_CONFIRM)
623 err = raw_send_hdrinc(sk, &fl4, msg->msg_iov, len,
624 &rt, msg->msg_flags);
628 ipc.addr = fl4.daddr;
630 err = ip_append_data(sk, &fl4, raw_getfrag,
632 &ipc, &rt, msg->msg_flags);
634 ip_flush_pending_frames(sk);
635 else if (!(msg->msg_flags & MSG_MORE)) {
636 err = ip_push_pending_frames(sk, &fl4);
637 if (err == -ENOBUFS && !inet->recverr)
653 dst_confirm(&rt->dst);
654 if (!(msg->msg_flags & MSG_PROBE) || len)
655 goto back_from_confirm;
660 static void raw_close(struct sock *sk, long timeout)
663 * Raw sockets may have direct kernel references. Kill them.
665 ip_ra_control(sk, 0, NULL);
667 sk_common_release(sk);
670 static void raw_destroy(struct sock *sk)
673 ip_flush_pending_frames(sk);
677 /* This gets rid of all the nasties in af_inet. -DaveM */
678 static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
680 struct inet_sock *inet = inet_sk(sk);
681 struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
685 if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
687 chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
688 ret = -EADDRNOTAVAIL;
689 if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
690 chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
692 inet->inet_rcv_saddr = inet->inet_saddr = addr->sin_addr.s_addr;
693 if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
694 inet->inet_saddr = 0; /* Use device */
701 * This should be easy, if there is something there
702 * we return it, otherwise we block.
705 static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
706 size_t len, int noblock, int flags, int *addr_len)
708 struct inet_sock *inet = inet_sk(sk);
710 int err = -EOPNOTSUPP;
711 struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
717 if (flags & MSG_ERRQUEUE) {
718 err = ip_recv_error(sk, msg, len, addr_len);
722 skb = skb_recv_datagram(sk, flags, noblock, &err);
728 msg->msg_flags |= MSG_TRUNC;
732 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
736 sock_recv_ts_and_drops(msg, sk, skb);
738 /* Copy the address. */
740 sin->sin_family = AF_INET;
741 sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
743 memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
744 *addr_len = sizeof(*sin);
746 if (inet->cmsg_flags)
747 ip_cmsg_recv(msg, skb);
748 if (flags & MSG_TRUNC)
751 skb_free_datagram(sk, skb);
758 static int raw_init(struct sock *sk)
760 struct raw_sock *rp = raw_sk(sk);
762 if (inet_sk(sk)->inet_num == IPPROTO_ICMP)
763 memset(&rp->filter, 0, sizeof(rp->filter));
767 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
769 if (optlen > sizeof(struct icmp_filter))
770 optlen = sizeof(struct icmp_filter);
771 if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
776 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
778 int len, ret = -EFAULT;
780 if (get_user(len, optlen))
785 if (len > sizeof(struct icmp_filter))
786 len = sizeof(struct icmp_filter);
788 if (put_user(len, optlen) ||
789 copy_to_user(optval, &raw_sk(sk)->filter, len))
795 static int do_raw_setsockopt(struct sock *sk, int level, int optname,
796 char __user *optval, unsigned int optlen)
798 if (optname == ICMP_FILTER) {
799 if (inet_sk(sk)->inet_num != IPPROTO_ICMP)
802 return raw_seticmpfilter(sk, optval, optlen);
807 static int raw_setsockopt(struct sock *sk, int level, int optname,
808 char __user *optval, unsigned int optlen)
810 if (level != SOL_RAW)
811 return ip_setsockopt(sk, level, optname, optval, optlen);
812 return do_raw_setsockopt(sk, level, optname, optval, optlen);
816 static int compat_raw_setsockopt(struct sock *sk, int level, int optname,
817 char __user *optval, unsigned int optlen)
819 if (level != SOL_RAW)
820 return compat_ip_setsockopt(sk, level, optname, optval, optlen);
821 return do_raw_setsockopt(sk, level, optname, optval, optlen);
825 static int do_raw_getsockopt(struct sock *sk, int level, int optname,
826 char __user *optval, int __user *optlen)
828 if (optname == ICMP_FILTER) {
829 if (inet_sk(sk)->inet_num != IPPROTO_ICMP)
832 return raw_geticmpfilter(sk, optval, optlen);
837 static int raw_getsockopt(struct sock *sk, int level, int optname,
838 char __user *optval, int __user *optlen)
840 if (level != SOL_RAW)
841 return ip_getsockopt(sk, level, optname, optval, optlen);
842 return do_raw_getsockopt(sk, level, optname, optval, optlen);
846 static int compat_raw_getsockopt(struct sock *sk, int level, int optname,
847 char __user *optval, int __user *optlen)
849 if (level != SOL_RAW)
850 return compat_ip_getsockopt(sk, level, optname, optval, optlen);
851 return do_raw_getsockopt(sk, level, optname, optval, optlen);
855 static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
859 int amount = sk_wmem_alloc_get(sk);
861 return put_user(amount, (int __user *)arg);
867 spin_lock_bh(&sk->sk_receive_queue.lock);
868 skb = skb_peek(&sk->sk_receive_queue);
871 spin_unlock_bh(&sk->sk_receive_queue.lock);
872 return put_user(amount, (int __user *)arg);
876 #ifdef CONFIG_IP_MROUTE
877 return ipmr_ioctl(sk, cmd, (void __user *)arg);
885 static int compat_raw_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
892 #ifdef CONFIG_IP_MROUTE
893 return ipmr_compat_ioctl(sk, cmd, compat_ptr(arg));
901 struct proto raw_prot = {
903 .owner = THIS_MODULE,
905 .destroy = raw_destroy,
906 .connect = ip4_datagram_connect,
907 .disconnect = udp_disconnect,
910 .setsockopt = raw_setsockopt,
911 .getsockopt = raw_getsockopt,
912 .sendmsg = raw_sendmsg,
913 .recvmsg = raw_recvmsg,
915 .backlog_rcv = raw_rcv_skb,
917 .unhash = raw_unhash_sk,
918 .obj_size = sizeof(struct raw_sock),
919 .h.raw_hash = &raw_v4_hashinfo,
921 .compat_setsockopt = compat_raw_setsockopt,
922 .compat_getsockopt = compat_raw_getsockopt,
923 .compat_ioctl = compat_raw_ioctl,
927 #ifdef CONFIG_PROC_FS
928 static struct sock *raw_get_first(struct seq_file *seq)
931 struct raw_iter_state *state = raw_seq_private(seq);
933 for (state->bucket = 0; state->bucket < RAW_HTABLE_SIZE;
935 struct hlist_node *node;
937 sk_for_each(sk, node, &state->h->ht[state->bucket])
938 if (sock_net(sk) == seq_file_net(seq))
946 static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
948 struct raw_iter_state *state = raw_seq_private(seq);
954 } while (sk && sock_net(sk) != seq_file_net(seq));
956 if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
957 sk = sk_head(&state->h->ht[state->bucket]);
963 static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos)
965 struct sock *sk = raw_get_first(seq);
968 while (pos && (sk = raw_get_next(seq, sk)) != NULL)
970 return pos ? NULL : sk;
973 void *raw_seq_start(struct seq_file *seq, loff_t *pos)
975 struct raw_iter_state *state = raw_seq_private(seq);
977 read_lock(&state->h->lock);
978 return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
980 EXPORT_SYMBOL_GPL(raw_seq_start);
982 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos)
986 if (v == SEQ_START_TOKEN)
987 sk = raw_get_first(seq);
989 sk = raw_get_next(seq, v);
993 EXPORT_SYMBOL_GPL(raw_seq_next);
995 void raw_seq_stop(struct seq_file *seq, void *v)
997 struct raw_iter_state *state = raw_seq_private(seq);
999 read_unlock(&state->h->lock);
1001 EXPORT_SYMBOL_GPL(raw_seq_stop);
1003 static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
1005 struct inet_sock *inet = inet_sk(sp);
1006 __be32 dest = inet->inet_daddr,
1007 src = inet->inet_rcv_saddr;
1009 srcp = inet->inet_num;
1011 seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
1012 " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
1013 i, src, srcp, dest, destp, sp->sk_state,
1014 sk_wmem_alloc_get(sp),
1015 sk_rmem_alloc_get(sp),
1016 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
1017 atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
1020 static int raw_seq_show(struct seq_file *seq, void *v)
1022 if (v == SEQ_START_TOKEN)
1023 seq_printf(seq, " sl local_address rem_address st tx_queue "
1024 "rx_queue tr tm->when retrnsmt uid timeout "
1025 "inode ref pointer drops\n");
1027 raw_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
1031 static const struct seq_operations raw_seq_ops = {
1032 .start = raw_seq_start,
1033 .next = raw_seq_next,
1034 .stop = raw_seq_stop,
1035 .show = raw_seq_show,
1038 int raw_seq_open(struct inode *ino, struct file *file,
1039 struct raw_hashinfo *h, const struct seq_operations *ops)
1042 struct raw_iter_state *i;
1044 err = seq_open_net(ino, file, ops, sizeof(struct raw_iter_state));
1048 i = raw_seq_private((struct seq_file *)file->private_data);
1052 EXPORT_SYMBOL_GPL(raw_seq_open);
1054 static int raw_v4_seq_open(struct inode *inode, struct file *file)
1056 return raw_seq_open(inode, file, &raw_v4_hashinfo, &raw_seq_ops);
1059 static const struct file_operations raw_seq_fops = {
1060 .owner = THIS_MODULE,
1061 .open = raw_v4_seq_open,
1063 .llseek = seq_lseek,
1064 .release = seq_release_net,
1067 static __net_init int raw_init_net(struct net *net)
1069 if (!proc_net_fops_create(net, "raw", S_IRUGO, &raw_seq_fops))
1075 static __net_exit void raw_exit_net(struct net *net)
1077 proc_net_remove(net, "raw");
1080 static __net_initdata struct pernet_operations raw_net_ops = {
1081 .init = raw_init_net,
1082 .exit = raw_exit_net,
1085 int __init raw_proc_init(void)
1087 return register_pernet_subsys(&raw_net_ops);
1090 void __init raw_proc_exit(void)
1092 unregister_pernet_subsys(&raw_net_ops);
1094 #endif /* CONFIG_PROC_FS */