* Authors:
* Pedro Roque <roque@di.fc.ul.pt>
*
- * $Id: datagram.c,v 1.24 2002/02/01 22:01:04 davem Exp $
- *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
if (final_p)
ipv6_addr_copy(&fl.fl6_dst, final_p);
- if ((err = __xfrm_lookup(&dst, &fl, sk, 1)) < 0) {
+ if ((err = __xfrm_lookup(&dst, &fl, sk, XFRM_LOOKUP_WAIT)) < 0) {
if (err == -EREMOTE)
err = ip6_dst_blackhole(sk, &dst, &fl);
if (err < 0)
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)
{
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;
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;
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(&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)) {
}
*hlimit = *(int *)CMSG_DATA(cmsg);
+ if (*hlimit < -1 || *hlimit > 0xff) {
+ err = -EINVAL;
+ goto exit_f;
+ }
+
break;
case IPV6_TCLASS: