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nexedi
linux
Commits
8de3351e
Commit
8de3351e
authored
Dec 21, 2005
by
YOSHIFUJI Hideaki
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[IPV6]: Try not to send icmp to anycast address.
Signed-off-by:
YOSHIFUJI Hideaki
<
yoshfuji@linux-ipv6.org
>
parent
58c4fb86
Changes
1
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14 additions
and
2 deletions
+14
-2
net/ipv6/icmp.c
net/ipv6/icmp.c
+14
-2
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net/ipv6/icmp.c
View file @
8de3351e
...
...
@@ -328,8 +328,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
iif
=
skb
->
dev
->
ifindex
;
/*
* Must not send if we know that source is Anycast also.
* for now we don't know that.
* Must not send error if the source does not uniquely
* identify a single node (RFC2463 Section 2.4).
* We check unspecified / multicast addresses here,
* and anycast addresses will be checked later.
*/
if
((
addr_type
==
IPV6_ADDR_ANY
)
||
(
addr_type
&
IPV6_ADDR_MULTICAST
))
{
LIMIT_NETDEBUG
(
KERN_DEBUG
"icmpv6_send: addr_any/mcast source
\n
"
);
...
...
@@ -373,6 +375,16 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
err
=
ip6_dst_lookup
(
sk
,
&
dst
,
&
fl
);
if
(
err
)
goto
out
;
/*
* We won't send icmp if the destination is known
* anycast.
*/
if
(((
struct
rt6_info
*
)
dst
)
->
rt6i_flags
&
RTF_ANYCAST
)
{
LIMIT_NETDEBUG
(
KERN_DEBUG
"icmpv6_send: acast source
\n
"
);
goto
out_dst_release
;
}
if
((
err
=
xfrm_lookup
(
&
dst
,
&
fl
,
sk
,
0
))
<
0
)
goto
out
;
...
...
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