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SubjectRe: [PATCH] small doc update for /proc/sys/net/ipv4/icmp_rate{mask,limit}
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
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;
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