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CVS log for src/sys/net/npf/npf_ncode.h

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Default branch: MAIN
Current tag: MAIN


Revision 1.11 / (download) - annotate - [select for diffs], Sat Feb 9 03:35:32 2013 UTC (3 months, 1 week ago) by rmind
Branch: MAIN
CVS Tags: tls-maxphys-nbase, tls-maxphys-base, khorben-n900, agc-symver-base, agc-symver, HEAD
Changes since 1.10: +1 -5 lines
Diff to previous 1.10 (colored)

NPF:
- Implement dynamic NPF rules.  Controlled through npf(3) library of via
  npfctl rule command.  A rule can be removed using a unique identifier,
  returned on addition, or using a key which is SHA1 hash of the rule.
  Adjust npftest and add a regression test.
- Improvements to rule inspection mechanism.
- Initial BPF support as an alternative to n-code.
- Minor fixes; bump the version.

Revision 1.10 / (download) - annotate - [select for diffs], Thu Jul 19 21:52:29 2012 UTC (9 months, 4 weeks ago) by spz
Branch: MAIN
CVS Tags: yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6
Branch point for: tls-maxphys
Changes since 1.9: +10 -3 lines
Diff to previous 1.9 (colored)

teach npf ipv6-icmp
reviewed by rmind@

Revision 1.9 / (download) - annotate - [select for diffs], Sun Jul 1 23:21:06 2012 UTC (10 months, 2 weeks ago) by rmind
Branch: MAIN
Changes since 1.8: +10 -2 lines
Diff to previous 1.8 (colored)

NPF improvements:
- Add NPF_OPCODE_PROTO to match the address and/or protocol only.
- Update parser to support arbitrary "pass proto <name/number>".
- Fix IPv6 address and protocol handling (add a regression test).
- Fix few theorethical races in session handling module.
- Misc fixes, simplifications and some clean up.

Revision 1.8 / (download) - annotate - [select for diffs], Fri Jun 15 23:24:08 2012 UTC (11 months ago) by rmind
Branch: MAIN
Changes since 1.7: +6 -5 lines
Diff to previous 1.7 (colored)

- Rework NPF NAT syntax to be more structured and support future additions
  of different types and configurations of NAT.
- npfctl: improve disassemble and show-config command functionality.
- Fix custom ICMP code and type filtering.

Revision 1.7 / (download) - annotate - [select for diffs], Sat Apr 14 19:01:21 2012 UTC (13 months ago) by rmind
Branch: MAIN
CVS Tags: yamt-pagecache-base5, yamt-pagecache-base4, jmcneill-usbmp-base9, jmcneill-usbmp-base10
Changes since 1.6: +2 -2 lines
Diff to previous 1.6 (colored)

Update rumpdev_npf; use WARNS=4.

Revision 1.6 / (download) - annotate - [select for diffs], Sat Mar 10 22:22:38 2012 UTC (14 months, 1 week ago) by christos
Branch: MAIN
CVS Tags: jmcneill-usbmp-base8, jmcneill-usbmp-base7
Changes since 1.5: +235 -2 lines
Diff to previous 1.5 (colored)

definitions used by the disassembler.

Revision 1.5 / (download) - annotate - [select for diffs], Fri Nov 4 01:00:27 2011 UTC (18 months, 2 weeks ago) by zoltan
Branch: MAIN
CVS Tags: yamt-pagecache-base3, yamt-pagecache-base2, netbsd-6-base, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base, jmcneill-audiomp3-base, jmcneill-audiomp3
Branch point for: netbsd-6, jmcneill-usbmp
Changes since 1.4: +3 -2 lines
Diff to previous 1.4 (colored)

Add IPv6 support for NPF.

Revision 1.4 / (download) - annotate - [select for diffs], Sat Dec 18 01:07:25 2010 UTC (2 years, 5 months ago) by rmind
Branch: MAIN
CVS Tags: yamt-pagecache-base, rmind-uvmplock-nbase, rmind-uvmplock-base, matt-mips64-premerge-20101231, jruoho-x86intr-base, jruoho-x86intr, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Branch point for: yamt-pagecache, rmind-uvmplock
Changes since 1.3: +15 -4 lines
Diff to previous 1.3 (colored)

NPF checkpoint:
- Add support for session saving/restoring.
- Add packet logging support (can tcpdump a pseudo-interface).
- Support reload without flushing of sessions; rework some locking.
- Revisit session mangement, replace linking with npf_sentry_t entries.
- Add some counters for statistics, using percpu(9).
- Add IP_DF flag cleansing.
- Fix various bugs; misc clean-up.

Revision 1.3 / (download) - annotate - [select for diffs], Thu Nov 11 06:30:39 2010 UTC (2 years, 6 months ago) by rmind
Branch: MAIN
Changes since 1.2: +9 -4 lines
Diff to previous 1.2 (colored)

NPF checkpoint:
- Add proper TCP state tracking as described in Guido van Rooij paper,
  plus handle TCP Window Scaling option.
- Completely rework npf_cache_t, reduce granularity, simplify code.
- Add npf_addr_t as an abstraction, amend session handling code, as well
  as NAT code et al, to use it.  Now design is prepared for IPv6 support.
- Handle IPv4 fragments i.e. perform packet reassembly.
- Add support for IPv4 ID randomization and minimum TTL enforcement.
- Add support for TCP MSS "clamping".
- Random bits for IPv6.  Various fixes and clean-up.

Revision 1.2 / (download) - annotate - [select for diffs], Thu Sep 16 04:53:27 2010 UTC (2 years, 8 months ago) by rmind
Branch: MAIN
CVS Tags: yamt-nfs-mp-base11, uebayasi-xip-base4, uebayasi-xip-base3
Branch point for: yamt-nfs-mp, uebayasi-xip
Changes since 1.1: +2 -1 lines
Diff to previous 1.1 (colored)

NPF checkpoint:
- Add support for bi-directional NAT and redirection / port forwarding.
- Finish filtering on ICMP type/code and add filtering on TCP flags.
- Add support for TCP reset (RST) or ICMP destination unreachable on block.
- Fix a bunch of bugs; misc cleanup.

Revision 1.1 / (download) - annotate - [select for diffs], Sun Aug 22 18:56:22 2010 UTC (2 years, 8 months ago) by rmind
Branch: MAIN

Import NPF - a packet filter.  Some features:

- Designed to be fully MP-safe and highly efficient.

- Tables/IP sets (hash or red-black tree) for high performance lookups.

- Stateful filtering and Network Address Port Translation (NAPT).
  Framework for application level gateways (ALGs).

- Packet inspection engine called n-code processor - inspired by BPF -
  supporting generic RISC-like and specific CISC-like instructions for
  common patterns (e.g. IPv4 address matching).  See npf_ncode(9) manual.

- Convenient userland utility npfctl(8) with npf.conf(8).

NOTE: This is not yet a fully capable alternative to PF or IPFilter.
Further work (support for binat/rdr, return-rst/return-icmp, common ALGs,
state saving/restoring, logging, etc) is in progress.

Thanks a lot to Matt Thomas for various useful comments and code review.
Aye by: board@

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