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authorLinus Torvalds <torvalds@linux-foundation.org>2008-06-04 17:39:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-06-04 17:39:33 -0700
commit3e387fcdc485d94fe2c4b52e7c30c0c4cd1fe364 (patch)
tree577de7b1aed18106b30e3e1d517b165f137e52ac /net/ipv6/datagram.c
parent9489a0625854cd7482bb0e8b37de4406cdcd49e0 (diff)
parent24b95685ffcdb3dc28f64b9e8af6ea3e8360fbc5 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits) l2tp: Fix possible oops if transmitting or receiving when tunnel goes down tcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits. tcp: Increment OUTRSTS in tcp_send_active_reset() raw: Raw socket leak. lt2p: Fix possible WARN_ON from socket code when UDP socket is closed USB ID for Philips CPWUA054/00 Wireless USB Adapter 11g ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable libertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT ipw2200: expire and use oldest BSS on adhoc create airo warning fix b43legacy: Fix controller restart crash sctp: Fix ECN markings for IPv6 sctp: Flush the queue only once during fast retransmit. sctp: Start T3-RTX timer when fast retransmitting lowest TSN sctp: Correctly implement Fast Recovery cwnd manipulations. sctp: Move sctp_v4_dst_saddr out of loop sctp: retran_path update bug fix tcp: fix skb vs fack_count out-of-sync condition sunhme: Cleanup use of deprecated calls to save_and_cli and restore_flags. xfrm: xfrm_algo: correct usage of RIPEMD-160 ...
Diffstat (limited to 'net/ipv6/datagram.c')
-rw-r--r--net/ipv6/datagram.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 94fa6ae77cfe..b9c2de84a8a2 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -496,7 +496,8 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
return 0;
}
-int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
+int datagram_send_ctl(struct net *net,
+ struct msghdr *msg, struct flowi *fl,
struct ipv6_txoptions *opt,
int *hlimit, int *tclass)
{
@@ -509,7 +510,6 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
int addr_type;
- struct net_device *dev = NULL;
if (!CMSG_OK(msg, cmsg)) {
err = -EINVAL;
@@ -522,6 +522,9 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
switch (cmsg->cmsg_type) {
case IPV6_PKTINFO:
case IPV6_2292PKTINFO:
+ {
+ struct net_device *dev = NULL;
+
if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct in6_pktinfo))) {
err = -EINVAL;
goto exit_f;
@@ -535,32 +538,32 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
fl->oif = src_info->ipi6_ifindex;
}
- addr_type = ipv6_addr_type(&src_info->ipi6_addr);
+ addr_type = __ipv6_addr_type(&src_info->ipi6_addr);
- if (addr_type == IPV6_ADDR_ANY)
- break;
+ if (fl->oif) {
+ dev = dev_get_by_index(net, fl->oif);
+ if (!dev)
+ return -ENODEV;
+ } else if (addr_type & IPV6_ADDR_LINKLOCAL)
+ return -EINVAL;
- if (addr_type & IPV6_ADDR_LINKLOCAL) {
- if (!src_info->ipi6_ifindex)
- return -EINVAL;
- else {
- dev = dev_get_by_index(&init_net, src_info->ipi6_ifindex);
- if (!dev)
- return -ENODEV;
- }
- }
- if (!ipv6_chk_addr(&init_net, &src_info->ipi6_addr,
- dev, 0)) {
- if (dev)
- dev_put(dev);
- err = -EINVAL;
- goto exit_f;
+ if (addr_type != IPV6_ADDR_ANY) {
+ int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL;
+ if (!ipv6_chk_addr(net, &src_info->ipi6_addr,
+ strict ? dev : NULL, 0))
+ err = -EINVAL;
+ else
+ ipv6_addr_copy(&fl->fl6_src, &src_info->ipi6_addr);
}
+
if (dev)
dev_put(dev);
- ipv6_addr_copy(&fl->fl6_src, &src_info->ipi6_addr);
+ if (err)
+ goto exit_f;
+
break;
+ }
case IPV6_FLOWINFO:
if (cmsg->cmsg_len < CMSG_LEN(4)) {