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Date: Tue, 3 Apr 2007 14:20:34 -0400
From: John Heffner <jheffner@....edu>
To: yoshfuji@...ux-ipv6.org
Cc: netdev@...r.kernel.org, John Heffner <jheffner@....edu>
Subject: [PATCH 1/2] [iputils] Fix asymm messages.
We should only print the asymm messages in tracepath/6 when you receive a
TTL expired message, because this is the only time when we'd expect the
same number of hops back as our TTL was set to for a symmetric path.
---
tracepath.c | 25 ++++++++++++-------------
tracepath6.c | 25 ++++++++++++-------------
2 files changed, 24 insertions(+), 26 deletions(-)
diff --git a/tracepath.c b/tracepath.c
index a562d88..d035a1e 100644
--- a/tracepath.c
+++ b/tracepath.c
@@ -163,19 +163,6 @@ restart:
}
}
- if (rethops>=0) {
- if (rethops<=64)
- rethops = 65-rethops;
- else if (rethops<=128)
- rethops = 129-rethops;
- else
- rethops = 256-rethops;
- if (sndhops>=0 && rethops != sndhops)
- printf("asymm %2d ", rethops);
- else if (sndhops<0 && rethops != ttl)
- printf("asymm %2d ", rethops);
- }
-
if (rettv) {
int diff = (tv.tv_sec-rettv->tv_sec)*1000000+(tv.tv_usec-rettv->tv_usec);
printf("%3d.%03dms ", diff/1000, diff%1000);
@@ -204,6 +191,18 @@ restart:
if (e->ee_origin == SO_EE_ORIGIN_ICMP &&
e->ee_type == 11 &&
e->ee_code == 0) {
+ if (rethops>=0) {
+ if (rethops<=64)
+ rethops = 65-rethops;
+ else if (rethops<=128)
+ rethops = 129-rethops;
+ else
+ rethops = 256-rethops;
+ if (sndhops>=0 && rethops != sndhops)
+ printf("asymm %2d ", rethops);
+ else if (sndhops<0 && rethops != ttl)
+ printf("asymm %2d ", rethops);
+ }
printf("\n");
break;
}
diff --git a/tracepath6.c b/tracepath6.c
index 6f13a51..a010218 100644
--- a/tracepath6.c
+++ b/tracepath6.c
@@ -176,19 +176,6 @@ restart:
}
}
- if (rethops>=0) {
- if (rethops<=64)
- rethops = 65-rethops;
- else if (rethops<=128)
- rethops = 129-rethops;
- else
- rethops = 256-rethops;
- if (sndhops>=0 && rethops != sndhops)
- printf("asymm %2d ", rethops);
- else if (sndhops<0 && rethops != ttl)
- printf("asymm %2d ", rethops);
- }
-
if (rettv) {
int diff = (tv.tv_sec-rettv->tv_sec)*1000000+(tv.tv_usec-rettv->tv_usec);
printf("%3d.%03dms ", diff/1000, diff%1000);
@@ -220,6 +207,18 @@ restart:
(e->ee_origin == SO_EE_ORIGIN_ICMP6 &&
e->ee_type == 3 &&
e->ee_code == 0)) {
+ if (rethops>=0) {
+ if (rethops<=64)
+ rethops = 65-rethops;
+ else if (rethops<=128)
+ rethops = 129-rethops;
+ else
+ rethops = 256-rethops;
+ if (sndhops>=0 && rethops != sndhops)
+ printf("asymm %2d ", rethops);
+ else if (sndhops<0 && rethops != ttl)
+ printf("asymm %2d ", rethops);
+ }
printf("\n");
break;
}
--
1.5.0.2.gc260-dirty
-
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