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Date: Wed, 6 Jun 2001 14:51:31 -0400 (EDT)
From: Rob Simmons <rsimmons@wumpus.wlcg.com>
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Subject: kern/27912: ipfilter state table limits are too small
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>Number:         27912
>Category:       kern
>Synopsis:       ipfilter state table limits are too small
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jun 06 12:00:04 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Rob Simmons
>Release:        FreeBSD 4.3-STABLE i386
>Organization:
>Environment:
System: FreeBSD wumpus 4.3-STABLE FreeBSD 4.3-STABLE #0: Fri May 11 09:42:50 EDT 2001 root@wumpus:/usr/obj/usr/src/sys/WUMPUS i386


	
>Description:
The ipfilter state table limits are too small.  Ideally there should be
a sysctl knob for changing these limits on the fly.  The second most ideal
solution is to have a kernel configuration file knob.  The last solution
which is less than ideal, but would work for most people is to apply the
patch supplied below.
>How-To-Repeat:
The state tables right now have the following values:
#define IPSTATE_SIZE    5737
#define IPSTATE_MAX     4013
>Fix:
*** /tmp/ip_state.h     Wed Jun  6 14:55:56 2001
--- sys/netinet/ip_state.h      Wed Jun  6 14:56:21 2001
***************
*** 18,25 ****
  # define      SIOCDELST       _IOW(r, 61, struct ipstate *)
  #endif
  
! #define       IPSTATE_SIZE    5737
! #define       IPSTATE_MAX     4013    /* Maximum number of states held */
  
  #define       PAIRS(s1,d1,s2,d2)      ((((s1) == (s2)) && ((d1) == (d2))) ||\
                                 (((s1) == (d2)) && ((d1) == (s2))))
--- 18,25 ----
  # define      SIOCDELST       _IOW(r, 61, struct ipstate *)
  #endif
  
! #define       IPSTATE_SIZE    64747
! #define       IPSTATE_MAX     45322   /* Maximum number of states held */
  
  #define       PAIRS(s1,d1,s2,d2)      ((((s1) == (s2)) && ((d1) == (d2))) ||\
                                 (((s1) == (d2)) && ((d1) == (s2))))
>Release-Note:
>Audit-Trail:
>Unformatted:

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