* Authors:
* Pedro Roque <roque@di.fc.ul.pt>
*
- * $Id: icmp.c,v 1.38 2002/02/08 03:57:19 davem Exp $
- *
* Based on net/ipv4/icmp.c
*
* RFC 1885
.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};
-static __inline__ int icmpv6_xmit_lock(struct sock *sk)
+static __inline__ struct sock *icmpv6_xmit_lock(struct net *net)
{
+ struct sock *sk;
+
local_bh_disable();
+ sk = icmpv6_sk(net);
if (unlikely(!spin_trylock(&sk->sk_lock.slock))) {
/* This can happen if the output path (f.e. SIT or
* ip6ip6 tunnel) signals dst_link_failure() for an
* outgoing ICMP6 packet.
*/
local_bh_enable();
- return 1;
+ return NULL;
}
- return 0;
+ return sk;
}
static __inline__ void icmpv6_xmit_unlock(struct sock *sk)
*/
dst = ip6_route_output(net, sk, fl);
if (dst->error) {
- IP6_INC_STATS(ip6_dst_idev(dst),
+ IP6_INC_STATS(net, ip6_dst_idev(dst),
IPSTATS_MIB_OUTNOROUTES);
} else if (dst->dev && (dst->dev->flags&IFF_LOOPBACK)) {
res = 1;
icmp6h->icmp6_cksum = 0;
if (skb_queue_len(&sk->sk_write_queue) == 1) {
- skb->csum = csum_partial((char *)icmp6h,
+ skb->csum = csum_partial(icmp6h,
sizeof(struct icmp6hdr), skb->csum);
icmp6h->icmp6_cksum = csum_ipv6_magic(&fl->fl6_src,
&fl->fl6_dst,
tmp_csum = csum_add(tmp_csum, skb->csum);
}
- tmp_csum = csum_partial((char *)icmp6h,
+ tmp_csum = csum_partial(icmp6h,
sizeof(struct icmp6hdr), tmp_csum);
icmp6h->icmp6_cksum = csum_ipv6_magic(&fl->fl6_src,
&fl->fl6_dst,
fl.fl_icmp_code = code;
security_skb_classify_flow(skb, &fl);
- sk = icmpv6_sk(net);
- np = inet6_sk(sk);
-
- if (icmpv6_xmit_lock(sk))
+ sk = icmpv6_xmit_lock(net);
+ if (sk == NULL)
return;
+ np = inet6_sk(sk);
if (!icmpv6_xrlim_allow(sk, type, &fl))
goto out;
/* No need to clone since we're just using its address. */
dst2 = dst;
- err = xfrm_lookup(&dst, &fl, sk, 0);
+ err = xfrm_lookup(net, &dst, &fl, sk, 0);
switch (err) {
case 0:
if (dst != dst2)
}
if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
- goto out_dst_release;
+ goto relookup_failed;
- if (ip6_dst_lookup(sk, &dst2, &fl))
- goto out_dst_release;
+ if (ip6_dst_lookup(sk, &dst2, &fl2))
+ goto relookup_failed;
- err = xfrm_lookup(&dst2, &fl, sk, XFRM_LOOKUP_ICMP);
- if (err == -ENOENT) {
+ err = xfrm_lookup(net, &dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
+ switch (err) {
+ case 0:
+ dst_release(dst);
+ dst = dst2;
+ break;
+ case -EPERM:
+ goto out_dst_release;
+ default:
+relookup_failed:
if (!dst)
goto out;
- goto route_done;
+ break;
}
- dst_release(dst);
- dst = dst2;
-
- if (err)
- goto out;
-
route_done:
if (ipv6_addr_is_multicast(&fl.fl6_dst))
hlimit = np->mcast_hops;
fl.fl_icmp_type = ICMPV6_ECHO_REPLY;
security_skb_classify_flow(skb, &fl);
- sk = icmpv6_sk(net);
- np = inet6_sk(sk);
-
- if (icmpv6_xmit_lock(sk))
+ sk = icmpv6_xmit_lock(net);
+ if (sk == NULL)
return;
+ np = inet6_sk(sk);
if (!fl.oif && ipv6_addr_is_multicast(&fl.fl6_dst))
fl.oif = np->mcast_oif;
err = ip6_dst_lookup(sk, &dst, &fl);
if (err)
goto out;
- if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0)
+ if ((err = xfrm_lookup(net, &dst, &fl, sk, 0)) < 0)
goto out;
if (ipv6_addr_is_multicast(&fl.fl6_dst))
int type;
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
+ struct sec_path *sp = skb_sec_path(skb);
int nh;
- if (!(skb->sp && skb->sp->xvec[skb->sp->len - 1]->props.flags &
+ if (!(sp && sp->xvec[sp->len - 1]->props.flags &
XFRM_STATE_ICMP))
goto drop_no_count;
skb_set_network_header(skb, nh);
}
- ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INMSGS);
+ ICMP6_INC_STATS_BH(dev_net(dev), idev, ICMP6_MIB_INMSGS);
saddr = &ipv6_hdr(skb)->saddr;
daddr = &ipv6_hdr(skb)->daddr;
skb->csum = ~csum_unfold(csum_ipv6_magic(saddr, daddr, skb->len,
IPPROTO_ICMPV6, 0));
if (__skb_checksum_complete(skb)) {
- LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [" NIP6_FMT " > " NIP6_FMT "]\n",
- NIP6(*saddr), NIP6(*daddr));
+ LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [%pI6 > %pI6]\n",
+ saddr, daddr);
goto discard_it;
}
}
type = hdr->icmp6_type;
- ICMP6MSGIN_INC_STATS_BH(idev, type);
+ ICMP6MSGIN_INC_STATS_BH(dev_net(dev), idev, type);
switch (type) {
case ICMPV6_ECHO_REQUEST:
return 0;
discard_it:
- ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INERRORS);
+ ICMP6_INC_STATS_BH(dev_net(dev), idev, ICMP6_MIB_INERRORS);
drop_no_count:
kfree_skb(skb);
return 0;
.data = &init_net.ipv6.sysctl.icmpv6_time,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec_ms_jiffies,
+ .strategy = sysctl_ms_jiffies
},
{ .ctl_name = 0 },
};