* [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit}
@ 2001-12-12 12:27 Pierre Lombard
2001-12-13 0:37 ` David S. Miller
0 siblings, 1 reply; 4+ messages in thread
From: Pierre Lombard @ 2001-12-12 12:27 UTC (permalink / raw)
To: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 196 bytes --]
Hi,
Comments in the C code are incorrect and the documentation is
outdated.
Attached patch is for 2.4.17-pre8 but probably applies cleanly
against 2.5.x too.
--
Best regards,
Pierre Lombard
[-- Attachment #2: 20011212-icmpmask.diff --]
[-- Type: text/plain, Size: 1737 bytes --]
--- linux-2.4.17-pre8~/Documentation/networking/ip-sysctl.txt Wed Dec 12 12:52:25 2001
+++ linux-2.4.17-pre8/Documentation/networking/ip-sysctl.txt Wed Dec 12 12:53:17 2001
@@ -309,13 +309,20 @@
ICMP ECHO requests sent to it or just those to broadcast/multicast
addresses, respectively.
-icmp_destunreach_rate - INTEGER
-icmp_paramprob_rate - INTEGER
-icmp_timeexceed_rate - INTEGER
-icmp_echoreply_rate - INTEGER (not enabled per default)
- Limit the maximal rates for sending ICMP packets to specific targets.
+icmp_ratelimit - INTEGER
+ Limit the maximal rates for sending ICMP packets whose type matches
+ icmp_ratemask (see below) to specific targets.
0 to disable any limiting, otherwise the maximal rate in jiffies(1)
- See the source for more information.
+ Default: 1
+
+icmp_ratemask - INTEGER
+ Mask made of ICMP types for which rates are being limited.
+ Default: 6168
+ Note: 6168 = 0x1818 = 1<<ICMP_DEST_UNREACH + 1<<ICMP_SOURCE_QUENCH +
+ 1<<ICMP_TIME_EXCEEDED + 1<<ICMP_PARAMETERPROB, which means
+ dest unreachable (3), source quench (4), time exceeded (11)
+ and parameter problem (12) ICMP packets are rate limited
+ (check values in icmp.h)
icmp_ignore_bogus_error_responses - BOOLEAN
Some routers violate RFC 1122 by sending bogus responses to broadcast
--- linux-2.4.17-pre8~/net/ipv4/icmp.c Wed Dec 12 12:48:56 2001
+++ linux-2.4.17-pre8/net/ipv4/icmp.c Wed Dec 12 12:51:41 2001
@@ -154,8 +154,8 @@
* it's bit position.
*
* default:
- * dest unreachable (0x03), source quench (0x04),
- * time exceeded (0x11), parameter problem (0x12)
+ * dest unreachable (3), source quench (4),
+ * time exceeded (11), parameter problem (12)
*/
int sysctl_icmp_ratelimit = 1*HZ;
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit}
2001-12-12 12:27 [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit} Pierre Lombard
@ 2001-12-13 0:37 ` David S. Miller
2001-12-13 8:57 ` Pierre Lombard
2001-12-13 8:59 ` David S. Miller
0 siblings, 2 replies; 4+ messages in thread
From: David S. Miller @ 2001-12-13 0:37 UTC (permalink / raw)
To: pierre.lombard; +Cc: linux-kernel
Your patch does not apply, did you edit this patch by hand
before submitting it? The "#lines" in the patch chunks are
inaccurate.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit}
2001-12-13 0:37 ` David S. Miller
@ 2001-12-13 8:57 ` Pierre Lombard
2001-12-13 8:59 ` David S. Miller
1 sibling, 0 replies; 4+ messages in thread
From: Pierre Lombard @ 2001-12-13 8:57 UTC (permalink / raw)
To: David S. Miller; +Cc: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 398 bytes --]
On Wed, Dec 12, 2001 at 04:37:26PM -0800, David S. Miller wrote:
> Your patch does not apply, did you edit this patch by hand
> before submitting it? The "#lines" in the patch chunks are
> inaccurate.
Yes. I didn't thought it would break since it applied cleanly
here but it did :)
A fresh & unedited version against a vanilla 2.4.17-pre8 is
text-attached.
--
Best regards,
Pierre Lombard
[-- Attachment #2: 20011213-icmpmask.diff --]
[-- Type: text/plain, Size: 1889 bytes --]
diff -urN linux-2.4.17-pre8/Documentation/networking/ip-sysctl.txt linux/Documentation/networking/ip-sysctl.txt
--- linux-2.4.17-pre8/Documentation/networking/ip-sysctl.txt Wed May 16 19:21:45 2001
+++ linux/Documentation/networking/ip-sysctl.txt Thu Dec 13 09:40:03 2001
@@ -309,13 +309,20 @@
ICMP ECHO requests sent to it or just those to broadcast/multicast
addresses, respectively.
-icmp_destunreach_rate - INTEGER
-icmp_paramprob_rate - INTEGER
-icmp_timeexceed_rate - INTEGER
-icmp_echoreply_rate - INTEGER (not enabled per default)
- Limit the maximal rates for sending ICMP packets to specific targets.
+icmp_ratelimit - INTEGER
+ Limit the maximal rates for sending ICMP packets whose type matches
+ icmp_ratemask (see below) to specific targets.
0 to disable any limiting, otherwise the maximal rate in jiffies(1)
- See the source for more information.
+ Default: 1
+
+icmp_ratemask - INTEGER
+ Mask made of ICMP types for which rates are being limited.
+ Default: 6168
+ Note: 6168 = 0x1818 = 1<<ICMP_DEST_UNREACH + 1<<ICMP_SOURCE_QUENCH +
+ 1<<ICMP_TIME_EXCEEDED + 1<<ICMP_PARAMETERPROB, which means
+ dest unreachable (3), source quench (4), time exceeded (11)
+ and parameter problem (12) ICMP packets are rate limited
+ (check values in icmp.h)
icmp_ignore_bogus_error_responses - BOOLEAN
Some routers violate RFC 1122 by sending bogus responses to broadcast
diff -urN linux-2.4.17-pre8/net/ipv4/icmp.c linux/net/ipv4/icmp.c
--- linux-2.4.17-pre8/net/ipv4/icmp.c Wed Nov 7 23:39:36 2001
+++ linux/net/ipv4/icmp.c Thu Dec 13 09:40:03 2001
@@ -154,8 +154,8 @@
* it's bit position.
*
* default:
- * dest unreachable (0x03), source quench (0x04),
- * time exceeded (0x11), parameter problem (0x12)
+ * dest unreachable (3), source quench (4),
+ * time exceeded (11), parameter problem (12)
*/
int sysctl_icmp_ratelimit = 1*HZ;
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit}
2001-12-13 0:37 ` David S. Miller
2001-12-13 8:57 ` Pierre Lombard
@ 2001-12-13 8:59 ` David S. Miller
1 sibling, 0 replies; 4+ messages in thread
From: David S. Miller @ 2001-12-13 8:59 UTC (permalink / raw)
To: pierre.lombard; +Cc: linux-kernel
From: Pierre Lombard <pierre.lombard@imag.fr>
Date: Thu, 13 Dec 2001 09:57:49 +0100
A fresh & unedited version against a vanilla 2.4.17-pre8 is
text-attached.
Applied, thanks.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2001-12-12 12:27 [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit} Pierre Lombard
2001-12-13 0:37 ` David S. Miller
2001-12-13 8:57 ` Pierre Lombard
2001-12-13 8:59 ` David S. Miller
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