[PATCH 5/6] IPv6: Improve IPv6 tunnel error reporting

[Ville Nuorvala]

From 6b9b468f1cf3f2897fbcda389e8c2514a69c4943 Mon Sep 17 00:00:00 2001
From: Ville Nuorvala [EMAIL PROTECTED]
Date: Thu, 2 Nov 2006 12:49:47 +0200
Subject: [PATCH 5/6] IPv6: Improve IPv6 tunnel error reporting

Log an error if the remote tunnel endpoint is unable to handle
tunneled packets.

Signed-off-by: Ville Nuorvala [EMAIL PROTECTED]
---
 net/ipv6/ip6_tunnel.c |   13 +++--
 1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index a97eb52..4f64ed7 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -424,12 +424,9 @@ ip6ip6_err(struct sk_buff *skb, struct i
}
break;
case ICMPV6_PARAMPROB:
-   /* ignore if parameter problem not caused by a tunnel
-  encapsulation limit sub-option */
-   if (code != ICMPV6_HDR_FIELD) {
-   break;
-   }
-   teli = parse_tlv_tnl_enc_lim(skb, skb-data);
+   teli = 0;
+   if (code == ICMPV6_HDR_FIELD)
+   teli = parse_tlv_tnl_enc_lim(skb, skb-data);
 
if (teli  teli == ntohl(info) - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) skb-data[teli];
@@ -441,6 +438,10 @@ ip6ip6_err(struct sk_buff *skb, struct i
   tunnel!\n, t-parms.name);
rel_msg = 1;
}
+   } else if (net_ratelimit()) {
+   printk(KERN_WARNING
+  %s: Recipient unable to parse tunneled 
+  packet!\n , t-parms.name);
}
break;
case ICMPV6_PKT_TOOBIG:
-- 
1.4.3.2

Re: [PATCH 5/6] IPv6: Improve IPv6 tunnel error reporting

[YOSHIFUJI Hideaki / 吉藤英明]

In article [EMAIL PROTECTED] (at Thu, 02 Nov 2006 13:37:29 +0200), Ville 
Nuorvala [EMAIL PROTECTED] says:

 From 6b9b468f1cf3f2897fbcda389e8c2514a69c4943 Mon Sep 17 00:00:00 2001
 From: Ville Nuorvala [EMAIL PROTECTED]
 Date: Thu, 2 Nov 2006 12:49:47 +0200
 Subject: [PATCH 5/6] IPv6: Improve IPv6 tunnel error reporting
 
 Log an error if the remote tunnel endpoint is unable to handle
 tunneled packets.
 
 Signed-off-by: Ville Nuorvala [EMAIL PROTECTED]
Acked-by: YOSHIFUJI Hideaki [EMAIL PROTECTED]

--yoshfuji
-
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