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Date:      Thu, 3 Dec 1998 20:24:56 -0800 (PST)
From:      Matthew Dillon <dillon@apollo.backplane.com>
To:        "Andrey A. Chernov" <ache@nagual.pp.ru>
Cc:        cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/netinet icmp_var.h
Message-ID:  <199812040424.UAA03505@apollo.backplane.com>
References:  <199812040349.TAA22636@freefall.freebsd.org> <19981204070811.A40154@nagual.pp.ru> <19981204071357.A41880@nagual.pp.ru>

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:Just to add: if you get rid of ICMP_BANDLIM option from this header file,
:you can remove opt_icmp_bandlim.h from it too! 
:
:I assume you later include opt_icmp_bandlim.h in kernel *.c files which
:really need it, it is better variant because now too many files will be
:recompiled if BANDLIM option changed. 
:
:-- 
:Andrey A. Chernov
:http://www.nagual.pp.ru/~ache/
:MTH/SH/HE S-- W-- N+ PEC>+ D A a++ C G>+ QH+(++) 666+>++ Y

    Ok, commited most of your suggestions - sysctl is permanent (but value
    is -1 and sysctl is read-only if ICMP_BANDLIM not optioned).  
    #ifdef KERNEL's added to icmp_var.h.  I still need to #include the option
    file (inside the #ifdef KERNEL) in order to properly extern the kernel
    function (also inside an #ifdef KERNEL now).

    I really do not want to throw multiple externs into the code, and I
    can't localize the rate limit to the icmp module because there is a 
    critical piece in the tcp module that rate-limits dropwithreset for
    SYN's received to non-existent ports (a common attack mode) which has
    nothing to do with ICMP packets.

						-Matt

    Matthew Dillon  Engineering, HiWay Technologies, Inc. & BEST Internet 
                    Communications & God knows what else.
    <dillon@backplane.com> (Please include original email in any response)    


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