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.
8 * Version: $Id: raw.c,v 1.64 2002/02/01 22:01:04 davem Exp $
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
14 * Alan Cox : verify_area() fixed up
15 * Alan Cox : ICMP error handling
16 * Alan Cox : EMSGSIZE if you send too big a packet
17 * Alan Cox : Now uses generic datagrams and shared
18 * skbuff library. No more peek crashes,
20 * Alan Cox : Checks sk->broadcast.
21 * Alan Cox : Uses skb_free_datagram/skb_copy_datagram
22 * Alan Cox : Raw passes ip options too
23 * Alan Cox : Setsocketopt added
24 * Alan Cox : Fixed error return for broadcasts
25 * Alan Cox : Removed wake_up calls
26 * Alan Cox : Use ttl/tos
27 * Alan Cox : Cleaned up old debugging
28 * Alan Cox : Use new kernel side addresses
29 * Arnt Gulbrandsen : Fixed MSG_DONTROUTE in raw sockets.
30 * Alan Cox : BSD style RAW socket demultiplexing.
31 * Alan Cox : Beginnings of mrouted support.
32 * Alan Cox : Added IP_HDRINCL option.
33 * Alan Cox : Skip broadcast check if BSDism set.
34 * David S. Miller : New socket lookup architecture.
36 * This program is free software; you can redistribute it and/or
37 * modify it under the terms of the GNU General Public License
38 * as published by the Free Software Foundation; either version
39 * 2 of the License, or (at your option) any later version.
42 #include <linux/types.h>
43 #include <asm/atomic.h>
44 #include <asm/byteorder.h>
45 #include <asm/current.h>
46 #include <asm/uaccess.h>
47 #include <asm/ioctls.h>
48 #include <linux/stddef.h>
49 #include <linux/slab.h>
50 #include <linux/errno.h>
51 #include <linux/aio.h>
52 #include <linux/kernel.h>
53 #include <linux/spinlock.h>
54 #include <linux/sockios.h>
55 #include <linux/socket.h>
57 #include <linux/mroute.h>
58 #include <linux/netdevice.h>
59 #include <linux/in_route.h>
60 #include <linux/route.h>
61 #include <linux/skbuff.h>
62 #include <net/net_namespace.h>
65 #include <linux/gfp.h>
67 #include <linux/net.h>
73 #include <net/tcp_states.h>
74 #include <net/inet_common.h>
75 #include <net/checksum.h>
77 #include <linux/rtnetlink.h>
78 #include <linux/proc_fs.h>
79 #include <linux/seq_file.h>
80 #include <linux/netfilter.h>
81 #include <linux/netfilter_ipv4.h>
83 static struct raw_hashinfo raw_v4_hashinfo
= {
84 .lock
= __RW_LOCK_UNLOCKED(),
87 void raw_hash_sk(struct sock
*sk
, struct raw_hashinfo
*h
)
89 struct hlist_head
*head
;
91 head
= &h
->ht
[inet_sk(sk
)->num
& (RAW_HTABLE_SIZE
- 1)];
93 write_lock_bh(&h
->lock
);
94 sk_add_node(sk
, head
);
95 sock_prot_inc_use(sk
->sk_prot
);
96 write_unlock_bh(&h
->lock
);
98 EXPORT_SYMBOL_GPL(raw_hash_sk
);
100 static void raw_v4_hash(struct sock
*sk
)
102 raw_hash_sk(sk
, &raw_v4_hashinfo
);
105 static void raw_v4_unhash(struct sock
*sk
)
107 write_lock_bh(&raw_v4_hashinfo
.lock
);
108 if (sk_del_node_init(sk
))
109 sock_prot_dec_use(sk
->sk_prot
);
110 write_unlock_bh(&raw_v4_hashinfo
.lock
);
113 static struct sock
*__raw_v4_lookup(struct sock
*sk
, unsigned short num
,
114 __be32 raddr
, __be32 laddr
,
117 struct hlist_node
*node
;
119 sk_for_each_from(sk
, node
) {
120 struct inet_sock
*inet
= inet_sk(sk
);
122 if (inet
->num
== num
&&
123 !(inet
->daddr
&& inet
->daddr
!= raddr
) &&
124 !(inet
->rcv_saddr
&& inet
->rcv_saddr
!= laddr
) &&
125 !(sk
->sk_bound_dev_if
&& sk
->sk_bound_dev_if
!= dif
))
126 goto found
; /* gotcha */
137 static __inline__
int icmp_filter(struct sock
*sk
, struct sk_buff
*skb
)
141 if (!pskb_may_pull(skb
, sizeof(struct icmphdr
)))
144 type
= icmp_hdr(skb
)->type
;
146 __u32 data
= raw_sk(sk
)->filter
.data
;
148 return ((1 << type
) & data
) != 0;
151 /* Do not block unknown ICMP types */
155 /* IP input processing comes here for RAW socket delivery.
156 * Caller owns SKB, so we must make clones.
158 * RFC 1122: SHOULD pass TOS value up to the transport layer.
159 * -> It does. And not only TOS, but all IP header.
161 static int raw_v4_input(struct sk_buff
*skb
, struct iphdr
*iph
, int hash
)
164 struct hlist_head
*head
;
167 read_lock(&raw_v4_hashinfo
.lock
);
168 head
= &raw_v4_hashinfo
.ht
[hash
];
169 if (hlist_empty(head
))
171 sk
= __raw_v4_lookup(__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(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 struct iphdr
*iph
= (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
)
271 hash
= protocol
& (RAW_HTABLE_SIZE
- 1);
273 read_lock(&raw_v4_hashinfo
.lock
);
274 raw_sk
= sk_head(&raw_v4_hashinfo
.ht
[hash
]);
275 if (raw_sk
!= NULL
) {
276 iph
= (struct iphdr
*)skb
->data
;
277 while ((raw_sk
= __raw_v4_lookup(raw_sk
, protocol
, iph
->daddr
,
279 skb
->dev
->ifindex
)) != NULL
) {
280 raw_err(raw_sk
, skb
, info
);
281 raw_sk
= sk_next(raw_sk
);
282 iph
= (struct iphdr
*)skb
->data
;
285 read_unlock(&raw_v4_hashinfo
.lock
);
288 static int raw_rcv_skb(struct sock
* sk
, struct sk_buff
* skb
)
290 /* Charge it to the socket. */
292 if (sock_queue_rcv_skb(sk
, skb
) < 0) {
293 atomic_inc(&sk
->sk_drops
);
298 return NET_RX_SUCCESS
;
301 int raw_rcv(struct sock
*sk
, struct sk_buff
*skb
)
303 if (!xfrm4_policy_check(sk
, XFRM_POLICY_IN
, skb
)) {
304 atomic_inc(&sk
->sk_drops
);
310 skb_push(skb
, skb
->data
- skb_network_header(skb
));
312 raw_rcv_skb(sk
, skb
);
316 static int raw_send_hdrinc(struct sock
*sk
, void *from
, size_t length
,
320 struct inet_sock
*inet
= inet_sk(sk
);
327 if (length
> rt
->u
.dst
.dev
->mtu
) {
328 ip_local_error(sk
, EMSGSIZE
, rt
->rt_dst
, inet
->dport
,
335 hh_len
= LL_RESERVED_SPACE(rt
->u
.dst
.dev
);
337 skb
= sock_alloc_send_skb(sk
, length
+hh_len
+15,
338 flags
&MSG_DONTWAIT
, &err
);
341 skb_reserve(skb
, hh_len
);
343 skb
->priority
= sk
->sk_priority
;
344 skb
->dst
= dst_clone(&rt
->u
.dst
);
346 skb_reset_network_header(skb
);
348 skb_put(skb
, length
);
350 skb
->ip_summed
= CHECKSUM_NONE
;
352 skb
->transport_header
= skb
->network_header
;
353 err
= memcpy_fromiovecend((void *)iph
, from
, 0, length
);
357 /* We don't modify invalid header */
358 iphlen
= iph
->ihl
* 4;
359 if (iphlen
>= sizeof(*iph
) && iphlen
<= length
) {
361 iph
->saddr
= rt
->rt_src
;
363 iph
->tot_len
= htons(length
);
365 ip_select_ident(iph
, &rt
->u
.dst
, NULL
);
367 iph
->check
= ip_fast_csum((unsigned char *)iph
, iph
->ihl
);
369 if (iph
->protocol
== IPPROTO_ICMP
)
370 icmp_out_count(((struct icmphdr
*)
371 skb_transport_header(skb
))->type
);
373 err
= NF_HOOK(PF_INET
, NF_INET_LOCAL_OUT
, skb
, NULL
, rt
->u
.dst
.dev
,
376 err
= inet
->recverr
? net_xmit_errno(err
) : 0;
386 IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS
);
390 static int raw_probe_proto_opt(struct flowi
*fl
, struct msghdr
*msg
)
393 u8 __user
*type
= NULL
;
394 u8 __user
*code
= NULL
;
401 for (i
= 0; i
< msg
->msg_iovlen
; i
++) {
402 iov
= &msg
->msg_iov
[i
];
408 /* check if one-byte field is readable or not. */
409 if (iov
->iov_base
&& iov
->iov_len
< 1)
413 type
= iov
->iov_base
;
414 /* check if code field is readable or not. */
415 if (iov
->iov_len
> 1)
418 code
= iov
->iov_base
;
421 if (get_user(fl
->fl_icmp_type
, type
) ||
422 get_user(fl
->fl_icmp_code
, code
))
437 static int raw_sendmsg(struct kiocb
*iocb
, struct sock
*sk
, struct msghdr
*msg
,
440 struct inet_sock
*inet
= inet_sk(sk
);
441 struct ipcm_cookie ipc
;
442 struct rtable
*rt
= NULL
;
458 if (msg
->msg_flags
& MSG_OOB
) /* Mirror BSD error message */
459 goto out
; /* compatibility */
462 * Get and verify the address.
465 if (msg
->msg_namelen
) {
466 struct sockaddr_in
*usin
= (struct sockaddr_in
*)msg
->msg_name
;
468 if (msg
->msg_namelen
< sizeof(*usin
))
470 if (usin
->sin_family
!= AF_INET
) {
471 static int complained
;
473 printk(KERN_INFO
"%s forgot to set AF_INET in "
474 "raw sendmsg. Fix it!\n",
477 if (usin
->sin_family
)
480 daddr
= usin
->sin_addr
.s_addr
;
481 /* ANK: I did not forget to get protocol from port field.
482 * I just do not know, who uses this weirdness.
483 * IP_HDRINCL is much more convenient.
487 if (sk
->sk_state
!= TCP_ESTABLISHED
)
492 ipc
.addr
= inet
->saddr
;
494 ipc
.oif
= sk
->sk_bound_dev_if
;
496 if (msg
->msg_controllen
) {
497 err
= ip_cmsg_send(msg
, &ipc
);
512 /* Linux does not mangle headers on raw sockets,
513 * so that IP options + IP_HDRINCL is non-sense.
520 daddr
= ipc
.opt
->faddr
;
523 tos
= RT_CONN_FLAGS(sk
);
524 if (msg
->msg_flags
& MSG_DONTROUTE
)
527 if (MULTICAST(daddr
)) {
529 ipc
.oif
= inet
->mc_index
;
531 saddr
= inet
->mc_addr
;
535 struct flowi fl
= { .oif
= ipc
.oif
,
540 .proto
= inet
->hdrincl
? IPPROTO_RAW
:
543 if (!inet
->hdrincl
) {
544 err
= raw_probe_proto_opt(&fl
, msg
);
549 security_sk_classify_flow(sk
, &fl
);
550 err
= ip_route_output_flow(&rt
, &fl
, sk
, 1);
556 if (rt
->rt_flags
& RTCF_BROADCAST
&& !sock_flag(sk
, SOCK_BROADCAST
))
559 if (msg
->msg_flags
& MSG_CONFIRM
)
564 err
= raw_send_hdrinc(sk
, msg
->msg_iov
, len
,
569 ipc
.addr
= rt
->rt_dst
;
571 err
= ip_append_data(sk
, ip_generic_getfrag
, msg
->msg_iov
, len
, 0,
572 &ipc
, rt
, msg
->msg_flags
);
574 ip_flush_pending_frames(sk
);
575 else if (!(msg
->msg_flags
& MSG_MORE
))
576 err
= ip_push_pending_frames(sk
);
590 dst_confirm(&rt
->u
.dst
);
591 if (!(msg
->msg_flags
& MSG_PROBE
) || len
)
592 goto back_from_confirm
;
597 static void raw_close(struct sock
*sk
, long timeout
)
600 * Raw sockets may have direct kernel refereneces. Kill them.
602 ip_ra_control(sk
, 0, NULL
);
604 sk_common_release(sk
);
607 /* This gets rid of all the nasties in af_inet. -DaveM */
608 static int raw_bind(struct sock
*sk
, struct sockaddr
*uaddr
, int addr_len
)
610 struct inet_sock
*inet
= inet_sk(sk
);
611 struct sockaddr_in
*addr
= (struct sockaddr_in
*) uaddr
;
615 if (sk
->sk_state
!= TCP_CLOSE
|| addr_len
< sizeof(struct sockaddr_in
))
617 chk_addr_ret
= inet_addr_type(addr
->sin_addr
.s_addr
);
618 ret
= -EADDRNOTAVAIL
;
619 if (addr
->sin_addr
.s_addr
&& chk_addr_ret
!= RTN_LOCAL
&&
620 chk_addr_ret
!= RTN_MULTICAST
&& chk_addr_ret
!= RTN_BROADCAST
)
622 inet
->rcv_saddr
= inet
->saddr
= addr
->sin_addr
.s_addr
;
623 if (chk_addr_ret
== RTN_MULTICAST
|| chk_addr_ret
== RTN_BROADCAST
)
624 inet
->saddr
= 0; /* Use device */
631 * This should be easy, if there is something there
632 * we return it, otherwise we block.
635 static int raw_recvmsg(struct kiocb
*iocb
, struct sock
*sk
, struct msghdr
*msg
,
636 size_t len
, int noblock
, int flags
, int *addr_len
)
638 struct inet_sock
*inet
= inet_sk(sk
);
640 int err
= -EOPNOTSUPP
;
641 struct sockaddr_in
*sin
= (struct sockaddr_in
*)msg
->msg_name
;
648 *addr_len
= sizeof(*sin
);
650 if (flags
& MSG_ERRQUEUE
) {
651 err
= ip_recv_error(sk
, msg
, len
);
655 skb
= skb_recv_datagram(sk
, flags
, noblock
, &err
);
661 msg
->msg_flags
|= MSG_TRUNC
;
665 err
= skb_copy_datagram_iovec(skb
, 0, msg
->msg_iov
, copied
);
669 sock_recv_timestamp(msg
, sk
, skb
);
671 /* Copy the address. */
673 sin
->sin_family
= AF_INET
;
674 sin
->sin_addr
.s_addr
= ip_hdr(skb
)->saddr
;
676 memset(&sin
->sin_zero
, 0, sizeof(sin
->sin_zero
));
678 if (inet
->cmsg_flags
)
679 ip_cmsg_recv(msg
, skb
);
680 if (flags
& MSG_TRUNC
)
683 skb_free_datagram(sk
, skb
);
690 static int raw_init(struct sock
*sk
)
692 struct raw_sock
*rp
= raw_sk(sk
);
694 if (inet_sk(sk
)->num
== IPPROTO_ICMP
)
695 memset(&rp
->filter
, 0, sizeof(rp
->filter
));
699 static int raw_seticmpfilter(struct sock
*sk
, char __user
*optval
, int optlen
)
701 if (optlen
> sizeof(struct icmp_filter
))
702 optlen
= sizeof(struct icmp_filter
);
703 if (copy_from_user(&raw_sk(sk
)->filter
, optval
, optlen
))
708 static int raw_geticmpfilter(struct sock
*sk
, char __user
*optval
, int __user
*optlen
)
710 int len
, ret
= -EFAULT
;
712 if (get_user(len
, optlen
))
717 if (len
> sizeof(struct icmp_filter
))
718 len
= sizeof(struct icmp_filter
);
720 if (put_user(len
, optlen
) ||
721 copy_to_user(optval
, &raw_sk(sk
)->filter
, len
))
727 static int do_raw_setsockopt(struct sock
*sk
, int level
, int optname
,
728 char __user
*optval
, int optlen
)
730 if (optname
== ICMP_FILTER
) {
731 if (inet_sk(sk
)->num
!= IPPROTO_ICMP
)
734 return raw_seticmpfilter(sk
, optval
, optlen
);
739 static int raw_setsockopt(struct sock
*sk
, int level
, int optname
,
740 char __user
*optval
, int optlen
)
742 if (level
!= SOL_RAW
)
743 return ip_setsockopt(sk
, level
, optname
, optval
, optlen
);
744 return do_raw_setsockopt(sk
, level
, optname
, optval
, optlen
);
748 static int compat_raw_setsockopt(struct sock
*sk
, int level
, int optname
,
749 char __user
*optval
, int optlen
)
751 if (level
!= SOL_RAW
)
752 return compat_ip_setsockopt(sk
, level
, optname
, optval
, optlen
);
753 return do_raw_setsockopt(sk
, level
, optname
, optval
, optlen
);
757 static int do_raw_getsockopt(struct sock
*sk
, int level
, int optname
,
758 char __user
*optval
, int __user
*optlen
)
760 if (optname
== ICMP_FILTER
) {
761 if (inet_sk(sk
)->num
!= IPPROTO_ICMP
)
764 return raw_geticmpfilter(sk
, optval
, optlen
);
769 static int raw_getsockopt(struct sock
*sk
, int level
, int optname
,
770 char __user
*optval
, int __user
*optlen
)
772 if (level
!= SOL_RAW
)
773 return ip_getsockopt(sk
, level
, optname
, optval
, optlen
);
774 return do_raw_getsockopt(sk
, level
, optname
, optval
, optlen
);
778 static int compat_raw_getsockopt(struct sock
*sk
, int level
, int optname
,
779 char __user
*optval
, int __user
*optlen
)
781 if (level
!= SOL_RAW
)
782 return compat_ip_getsockopt(sk
, level
, optname
, optval
, optlen
);
783 return do_raw_getsockopt(sk
, level
, optname
, optval
, optlen
);
787 static int raw_ioctl(struct sock
*sk
, int cmd
, unsigned long arg
)
791 int amount
= atomic_read(&sk
->sk_wmem_alloc
);
792 return put_user(amount
, (int __user
*)arg
);
798 spin_lock_bh(&sk
->sk_receive_queue
.lock
);
799 skb
= skb_peek(&sk
->sk_receive_queue
);
802 spin_unlock_bh(&sk
->sk_receive_queue
.lock
);
803 return put_user(amount
, (int __user
*)arg
);
807 #ifdef CONFIG_IP_MROUTE
808 return ipmr_ioctl(sk
, cmd
, (void __user
*)arg
);
815 DEFINE_PROTO_INUSE(raw
)
817 struct proto raw_prot
= {
819 .owner
= THIS_MODULE
,
821 .connect
= ip4_datagram_connect
,
822 .disconnect
= udp_disconnect
,
825 .setsockopt
= raw_setsockopt
,
826 .getsockopt
= raw_getsockopt
,
827 .sendmsg
= raw_sendmsg
,
828 .recvmsg
= raw_recvmsg
,
830 .backlog_rcv
= raw_rcv_skb
,
832 .unhash
= raw_v4_unhash
,
833 .obj_size
= sizeof(struct raw_sock
),
835 .compat_setsockopt
= compat_raw_setsockopt
,
836 .compat_getsockopt
= compat_raw_getsockopt
,
841 #ifdef CONFIG_PROC_FS
842 struct raw_iter_state
{
846 #define raw_seq_private(seq) ((struct raw_iter_state *)(seq)->private)
848 static struct sock
*raw_get_first(struct seq_file
*seq
)
851 struct raw_iter_state
* state
= raw_seq_private(seq
);
853 for (state
->bucket
= 0; state
->bucket
< RAW_HTABLE_SIZE
;
855 struct hlist_node
*node
;
857 sk_for_each(sk
, node
, &raw_v4_hashinfo
.ht
[state
->bucket
])
858 if (sk
->sk_family
== PF_INET
)
866 static struct sock
*raw_get_next(struct seq_file
*seq
, struct sock
*sk
)
868 struct raw_iter_state
* state
= raw_seq_private(seq
);
874 } while (sk
&& sk
->sk_family
!= PF_INET
);
876 if (!sk
&& ++state
->bucket
< RAW_HTABLE_SIZE
) {
877 sk
= sk_head(&raw_v4_hashinfo
.ht
[state
->bucket
]);
883 static struct sock
*raw_get_idx(struct seq_file
*seq
, loff_t pos
)
885 struct sock
*sk
= raw_get_first(seq
);
888 while (pos
&& (sk
= raw_get_next(seq
, sk
)) != NULL
)
890 return pos
? NULL
: sk
;
893 static void *raw_seq_start(struct seq_file
*seq
, loff_t
*pos
)
895 read_lock(&raw_v4_hashinfo
.lock
);
896 return *pos
? raw_get_idx(seq
, *pos
- 1) : SEQ_START_TOKEN
;
899 static void *raw_seq_next(struct seq_file
*seq
, void *v
, loff_t
*pos
)
903 if (v
== SEQ_START_TOKEN
)
904 sk
= raw_get_first(seq
);
906 sk
= raw_get_next(seq
, v
);
911 static void raw_seq_stop(struct seq_file
*seq
, void *v
)
913 read_unlock(&raw_v4_hashinfo
.lock
);
916 static __inline__
char *get_raw_sock(struct sock
*sp
, char *tmpbuf
, int i
)
918 struct inet_sock
*inet
= inet_sk(sp
);
919 __be32 dest
= inet
->daddr
,
920 src
= inet
->rcv_saddr
;
924 sprintf(tmpbuf
, "%4d: %08X:%04X %08X:%04X"
925 " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d",
926 i
, src
, srcp
, dest
, destp
, sp
->sk_state
,
927 atomic_read(&sp
->sk_wmem_alloc
),
928 atomic_read(&sp
->sk_rmem_alloc
),
929 0, 0L, 0, sock_i_uid(sp
), 0, sock_i_ino(sp
),
930 atomic_read(&sp
->sk_refcnt
), sp
, atomic_read(&sp
->sk_drops
));
936 static int raw_seq_show(struct seq_file
*seq
, void *v
)
938 char tmpbuf
[TMPSZ
+1];
940 if (v
== SEQ_START_TOKEN
)
941 seq_printf(seq
, "%-*s\n", TMPSZ
-1,
942 " sl local_address rem_address st tx_queue "
943 "rx_queue tr tm->when retrnsmt uid timeout "
946 struct raw_iter_state
*state
= raw_seq_private(seq
);
948 seq_printf(seq
, "%-*s\n", TMPSZ
-1,
949 get_raw_sock(v
, tmpbuf
, state
->bucket
));
954 static const struct seq_operations raw_seq_ops
= {
955 .start
= raw_seq_start
,
956 .next
= raw_seq_next
,
957 .stop
= raw_seq_stop
,
958 .show
= raw_seq_show
,
961 static int raw_seq_open(struct inode
*inode
, struct file
*file
)
963 return seq_open_private(file
, &raw_seq_ops
,
964 sizeof(struct raw_iter_state
));
967 static const struct file_operations raw_seq_fops
= {
968 .owner
= THIS_MODULE
,
969 .open
= raw_seq_open
,
972 .release
= seq_release_private
,
975 int __init
raw_proc_init(void)
977 if (!proc_net_fops_create(&init_net
, "raw", S_IRUGO
, &raw_seq_fops
))
982 void __init
raw_proc_exit(void)
984 proc_net_remove(&init_net
, "raw");
986 #endif /* CONFIG_PROC_FS */