| Commit message (Collapse) | Author | Age | Files | Lines |
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rules. Also, don't show dynamic rules if you only asked to see a
certain rule number.
PR: 18550
Submitted by: Lyndon Nerenberg <lyndon@orthanc.ab.ca>
Approved by: luigi
MFC after: 2 weeks
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- MAN[1-9] -> MAN.
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dropped by rule -1 if logging is enabled.
PR: 25796
Submitted by: Crist J. Clark <cjclark@alum.mit.edu>
Approved by: nik
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address is configured on a interface. This is useful for routers with
dynamic interfaces. It is now possible to say:
0100 allow tcp from any to any established
0200 skipto 1000 tcp from any to any
0300 allow ip from any to any
1000 allow tcp from 1.2.3.4 to me 22
1010 deny tcp from any to me 22
1020 allow tcp from any to any
and not have to worry about the behaviour if dynamic interfaces configure
new IP numbers later on.
The check is semi expensive (traverses the interface address list)
so it should be protected as in the above example if high performance
is a requirement.
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reserved and now allocated TCP flags in incoming packets. This patch
stops overloading those bits in the IP firewall rules, and moves
colliding flags to a seperate field, ipflg. The IPFW userland
management tool, ipfw(8), is updated to reflect this change. New TCP
flags related to ECN are now included in tcp.h for reference, although
we don't currently implement TCP+ECN.
o To use this fix without completely rebuilding, it is sufficient to copy
ip_fw.h and tcp.h into your appropriate include directory, then rebuild
the ipfw kernel module, and ipfw tool, and install both. Note that a
mismatch between module and userland tool will result in incorrect
installation of firewall rules that may have unexpected effects. This
is an MFC candidate, following shakedown. This bug does not appear
to affect ipfilter.
Reviewed by: security-officer, billf
Reported by: Aragon Gouveia <aragon@phat.za.net>
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well, in which case return the rule number back into userland.
PR: bin/18351
Reviewed by: archie, luigi
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be preprocessed if it is specified as an absolute pathname.
PR: bin/16179
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PR: 21742
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accept value of zero as valid for IP Identification field.
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IP: version, tos, ttl, len, id
TCP: seq#, ack#, window size
Reviewed by: silence on freebsd-{net,ipfw}
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Noticed by: Peter Jeremy<peter.jeremy@alcatel.com.au>
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error in the usage printf())
Reviewed by: rwatson
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into add without problems.
The previous commit had the other half of this original patch which handled
tcpflags/tcpflgs confusion in output/input.
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ambiguous data to the userland program (kernel operation was
safe, anyways).
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It also squashes 99% of packet kiddie synflood orgies. For example, to
rate syn packets without MSS,
ipfw pipe 10 config 56Kbit/s queue 10Packets
ipfw add pipe 10 tcp from any to any in setup tcpoptions !mss
Submitted by: Richard A. Steenbergen <ras@e-gerbil.net>
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Manpage coming later...
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us to remove this include.
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rule that logs without a log limit, use "logamount 0" in addition to "log".
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Reviewed by: luigi, sheldonh
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Approved-by: jordan
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Implement masks on UDP/TCP ports.
Large rewrite of the manpage.
Work supported by Akamba Corp.
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Packets that match a tee rule should not be immediately accepted,
but should continue going through the rule list. This may be fixed
in a later version.
I hope to fix this soon in a separate commit.
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names/numbers.
Reviewed by: chris
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using syslog(3) (log(9)) for its various purposes! This long-awaited
change also includes such nice things as:
* macros expanding into _two_ comma-delimited arguments!
* snprintf!
* more snprintf!
* linting and criticism by more people than you can shake a stick at!
* a slightly more uniform message style than before!
and last but not least
* no less than 5 rewrites!
Reviewed by: committers
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