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-rw-r--r--net/ipv6/raw.c80
1 files changed, 40 insertions, 40 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index c2d8059e754e..1f8f6275a7e4 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1,9 +1,9 @@
1/* 1/*
2 * RAW sockets for IPv6 2 * RAW sockets for IPv6
3 * Linux INET6 implementation 3 * Linux INET6 implementation
4 * 4 *
5 * Authors: 5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt> 6 * Pedro Roque <roque@di.fc.ul.pt>
7 * 7 *
8 * Adapted from linux/net/ipv4/raw.c 8 * Adapted from linux/net/ipv4/raw.c
9 * 9 *
@@ -11,7 +11,7 @@
11 * 11 *
12 * Fixes: 12 * Fixes:
13 * Hideaki YOSHIFUJI : sin6_scope_id support 13 * Hideaki YOSHIFUJI : sin6_scope_id support
14 * YOSHIFUJI,H.@USAGI : raw checksum (RFC2292(bis) compliance) 14 * YOSHIFUJI,H.@USAGI : raw checksum (RFC2292(bis) compliance)
15 * Kazunori MIYAZAWA @USAGI: change process style to use ip6_append_data 15 * Kazunori MIYAZAWA @USAGI: change process style to use ip6_append_data
16 * 16 *
17 * This program is free software; you can redistribute it and/or 17 * This program is free software; you can redistribute it and/or
@@ -71,12 +71,12 @@ static void raw_v6_hash(struct sock *sk)
71 write_lock_bh(&raw_v6_lock); 71 write_lock_bh(&raw_v6_lock);
72 sk_add_node(sk, list); 72 sk_add_node(sk, list);
73 sock_prot_inc_use(sk->sk_prot); 73 sock_prot_inc_use(sk->sk_prot);
74 write_unlock_bh(&raw_v6_lock); 74 write_unlock_bh(&raw_v6_lock);
75} 75}
76 76
77static void raw_v6_unhash(struct sock *sk) 77static void raw_v6_unhash(struct sock *sk)
78{ 78{
79 write_lock_bh(&raw_v6_lock); 79 write_lock_bh(&raw_v6_lock);
80 if (sk_del_node_init(sk)) 80 if (sk_del_node_init(sk))
81 sock_prot_dec_use(sk->sk_prot); 81 sock_prot_dec_use(sk->sk_prot);
82 write_unlock_bh(&raw_v6_lock); 82 write_unlock_bh(&raw_v6_lock);
@@ -250,7 +250,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
250 */ 250 */
251 sk->sk_bound_dev_if = addr->sin6_scope_id; 251 sk->sk_bound_dev_if = addr->sin6_scope_id;
252 } 252 }
253 253
254 /* Binding to link-local address requires an interface */ 254 /* Binding to link-local address requires an interface */
255 if (!sk->sk_bound_dev_if) 255 if (!sk->sk_bound_dev_if)
256 goto out; 256 goto out;
@@ -261,7 +261,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
261 goto out; 261 goto out;
262 } 262 }
263 } 263 }
264 264
265 /* ipv4 addr of the socket is invalid. Only the 265 /* ipv4 addr of the socket is invalid. Only the
266 * unspecified and mapped address have a v4 equivalent. 266 * unspecified and mapped address have a v4 equivalent.
267 */ 267 */
@@ -324,7 +324,7 @@ void rawv6_err(struct sock *sk, struct sk_buff *skb,
324 324
325static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb) 325static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
326{ 326{
327 if ((raw6_sk(sk)->checksum || sk->sk_filter) && 327 if ((raw6_sk(sk)->checksum || sk->sk_filter) &&
328 skb_checksum_complete(skb)) { 328 skb_checksum_complete(skb)) {
329 /* FIXME: increment a raw6 drops counter here */ 329 /* FIXME: increment a raw6 drops counter here */
330 kfree_skb(skb); 330 kfree_skb(skb);
@@ -342,10 +342,10 @@ static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
342} 342}
343 343
344/* 344/*
345 * This is next to useless... 345 * This is next to useless...
346 * if we demultiplex in network layer we don't need the extra call 346 * if we demultiplex in network layer we don't need the extra call
347 * just to queue the skb... 347 * just to queue the skb...
348 * maybe we could have the network decide upon a hint if it 348 * maybe we could have the network decide upon a hint if it
349 * should call raw_rcv for demultiplexing 349 * should call raw_rcv for demultiplexing
350 */ 350 */
351int rawv6_rcv(struct sock *sk, struct sk_buff *skb) 351int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
@@ -353,17 +353,17 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
353 struct inet_sock *inet = inet_sk(sk); 353 struct inet_sock *inet = inet_sk(sk);
354 struct raw6_sock *rp = raw6_sk(sk); 354 struct raw6_sock *rp = raw6_sk(sk);
355 355
356 if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) { 356 if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
357 kfree_skb(skb); 357 kfree_skb(skb);
358 return NET_RX_DROP; 358 return NET_RX_DROP;
359 } 359 }
360 360
361 if (!rp->checksum) 361 if (!rp->checksum)
362 skb->ip_summed = CHECKSUM_UNNECESSARY; 362 skb->ip_summed = CHECKSUM_UNNECESSARY;
363 363
364 if (skb->ip_summed == CHECKSUM_COMPLETE) { 364 if (skb->ip_summed == CHECKSUM_COMPLETE) {
365 skb_postpull_rcsum(skb, skb->nh.raw, 365 skb_postpull_rcsum(skb, skb->nh.raw,
366 skb->h.raw - skb->nh.raw); 366 skb->h.raw - skb->nh.raw);
367 if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr, 367 if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr,
368 &skb->nh.ipv6h->daddr, 368 &skb->nh.ipv6h->daddr,
369 skb->len, inet->num, skb->csum)) 369 skb->len, inet->num, skb->csum))
@@ -404,8 +404,8 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
404 404
405 if (flags & MSG_OOB) 405 if (flags & MSG_OOB)
406 return -EOPNOTSUPP; 406 return -EOPNOTSUPP;
407 407
408 if (addr_len) 408 if (addr_len)
409 *addr_len=sizeof(*sin6); 409 *addr_len=sizeof(*sin6);
410 410
411 if (flags & MSG_ERRQUEUE) 411 if (flags & MSG_ERRQUEUE)
@@ -416,10 +416,10 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
416 goto out; 416 goto out;
417 417
418 copied = skb->len; 418 copied = skb->len;
419 if (copied > len) { 419 if (copied > len) {
420 copied = len; 420 copied = len;
421 msg->msg_flags |= MSG_TRUNC; 421 msg->msg_flags |= MSG_TRUNC;
422 } 422 }
423 423
424 if (skb->ip_summed==CHECKSUM_UNNECESSARY) { 424 if (skb->ip_summed==CHECKSUM_UNNECESSARY) {
425 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); 425 err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
@@ -549,7 +549,7 @@ out:
549} 549}
550 550
551static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, 551static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
552 struct flowi *fl, struct rt6_info *rt, 552 struct flowi *fl, struct rt6_info *rt,
553 unsigned int flags) 553 unsigned int flags)
554{ 554{
555 struct ipv6_pinfo *np = inet6_sk(sk); 555 struct ipv6_pinfo *np = inet6_sk(sk);
@@ -570,7 +570,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
570 skb = sock_alloc_send_skb(sk, length+hh_len+15, 570 skb = sock_alloc_send_skb(sk, length+hh_len+15,
571 flags&MSG_DONTWAIT, &err); 571 flags&MSG_DONTWAIT, &err);
572 if (skb == NULL) 572 if (skb == NULL)
573 goto error; 573 goto error;
574 skb_reserve(skb, hh_len); 574 skb_reserve(skb, hh_len);
575 575
576 skb->priority = sk->sk_priority; 576 skb->priority = sk->sk_priority;
@@ -600,7 +600,7 @@ error_fault:
600 kfree_skb(skb); 600 kfree_skb(skb);
601error: 601error:
602 IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS); 602 IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
603 return err; 603 return err;
604} 604}
605 605
606static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg) 606static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
@@ -694,19 +694,19 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
694 return -EMSGSIZE; 694 return -EMSGSIZE;
695 695
696 /* Mirror BSD error message compatibility */ 696 /* Mirror BSD error message compatibility */
697 if (msg->msg_flags & MSG_OOB) 697 if (msg->msg_flags & MSG_OOB)
698 return -EOPNOTSUPP; 698 return -EOPNOTSUPP;
699 699
700 /* 700 /*
701 * Get and verify the address. 701 * Get and verify the address.
702 */ 702 */
703 memset(&fl, 0, sizeof(fl)); 703 memset(&fl, 0, sizeof(fl));
704 704
705 if (sin6) { 705 if (sin6) {
706 if (addr_len < SIN6_LEN_RFC2133) 706 if (addr_len < SIN6_LEN_RFC2133)
707 return -EINVAL; 707 return -EINVAL;
708 708
709 if (sin6->sin6_family && sin6->sin6_family != AF_INET6) 709 if (sin6->sin6_family && sin6->sin6_family != AF_INET6)
710 return(-EAFNOSUPPORT); 710 return(-EAFNOSUPPORT);
711 711
712 /* port is the proto value [0..255] carried in nexthdr */ 712 /* port is the proto value [0..255] carried in nexthdr */
@@ -744,17 +744,17 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
744 ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL) 744 ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL)
745 fl.oif = sin6->sin6_scope_id; 745 fl.oif = sin6->sin6_scope_id;
746 } else { 746 } else {
747 if (sk->sk_state != TCP_ESTABLISHED) 747 if (sk->sk_state != TCP_ESTABLISHED)
748 return -EDESTADDRREQ; 748 return -EDESTADDRREQ;
749 749
750 proto = inet->num; 750 proto = inet->num;
751 daddr = &np->daddr; 751 daddr = &np->daddr;
752 fl.fl6_flowlabel = np->flow_label; 752 fl.fl6_flowlabel = np->flow_label;
753 } 753 }
754 754
755 if (ipv6_addr_any(daddr)) { 755 if (ipv6_addr_any(daddr)) {
756 /* 756 /*
757 * unspecified destination address 757 * unspecified destination address
758 * treated as error... is this correct ? 758 * treated as error... is this correct ?
759 */ 759 */
760 fl6_sock_release(flowlabel); 760 fl6_sock_release(flowlabel);
@@ -792,7 +792,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
792 err = rawv6_probe_proto_opt(&fl, msg); 792 err = rawv6_probe_proto_opt(&fl, msg);
793 if (err) 793 if (err)
794 goto out; 794 goto out;
795 795
796 ipv6_addr_copy(&fl.fl6_dst, daddr); 796 ipv6_addr_copy(&fl.fl6_dst, daddr);
797 if (ipv6_addr_any(&fl.fl6_src) && !ipv6_addr_any(&np->saddr)) 797 if (ipv6_addr_any(&fl.fl6_src) && !ipv6_addr_any(&np->saddr))
798 ipv6_addr_copy(&fl.fl6_src, &np->saddr); 798 ipv6_addr_copy(&fl.fl6_src, &np->saddr);
@@ -856,7 +856,7 @@ done:
856 dst_release(dst); 856 dst_release(dst);
857 if (!inet->hdrincl) 857 if (!inet->hdrincl)
858 release_sock(sk); 858 release_sock(sk);
859out: 859out:
860 fl6_sock_release(flowlabel); 860 fl6_sock_release(flowlabel);
861 return err<0?err:len; 861 return err<0?err:len;
862do_confirm: 862do_confirm:
@@ -867,7 +867,7 @@ do_confirm:
867 goto done; 867 goto done;
868} 868}
869 869
870static int rawv6_seticmpfilter(struct sock *sk, int level, int optname, 870static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
871 char __user *optval, int optlen) 871 char __user *optval, int optlen)
872{ 872{
873 switch (optname) { 873 switch (optname) {
@@ -884,7 +884,7 @@ static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
884 return 0; 884 return 0;
885} 885}
886 886
887static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, 887static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
888 char __user *optval, int __user *optlen) 888 char __user *optval, int __user *optlen)
889{ 889{
890 int len; 890 int len;
@@ -916,7 +916,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
916 struct raw6_sock *rp = raw6_sk(sk); 916 struct raw6_sock *rp = raw6_sk(sk);
917 int val; 917 int val;
918 918
919 if (get_user(val, (int __user *)optval)) 919 if (get_user(val, (int __user *)optval))
920 return -EFAULT; 920 return -EFAULT;
921 921
922 switch (optname) { 922 switch (optname) {
@@ -1224,7 +1224,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
1224 src->s6_addr32[2], src->s6_addr32[3], srcp, 1224 src->s6_addr32[2], src->s6_addr32[3], srcp,
1225 dest->s6_addr32[0], dest->s6_addr32[1], 1225 dest->s6_addr32[0], dest->s6_addr32[1],
1226 dest->s6_addr32[2], dest->s6_addr32[3], destp, 1226 dest->s6_addr32[2], dest->s6_addr32[3], destp,
1227 sp->sk_state, 1227 sp->sk_state,
1228 atomic_read(&sp->sk_wmem_alloc), 1228 atomic_read(&sp->sk_wmem_alloc),
1229 atomic_read(&sp->sk_rmem_alloc), 1229 atomic_read(&sp->sk_rmem_alloc),
1230 0, 0L, 0, 1230 0, 0L, 0,
@@ -1273,7 +1273,7 @@ out_kfree:
1273 goto out; 1273 goto out;
1274} 1274}
1275 1275
1276static struct file_operations raw6_seq_fops = { 1276static const struct file_operations raw6_seq_fops = {
1277 .owner = THIS_MODULE, 1277 .owner = THIS_MODULE,
1278 .open = raw6_seq_open, 1278 .open = raw6_seq_open,
1279 .read = seq_read, 1279 .read = seq_read,