Commit Graph

30 Commits

Author SHA1 Message Date
Andrey V. Elsukov
fcf596178b Merge projects/ipsec into head/.
Small summary
 -------------

o Almost all IPsec releated code was moved into sys/netipsec.
o New kernel modules added: ipsec.ko and tcpmd5.ko. New kernel
  option IPSEC_SUPPORT added. It enables support for loading
  and unloading of ipsec.ko and tcpmd5.ko kernel modules.
o IPSEC_NAT_T option was removed. Now NAT-T support is enabled by
  default. The UDP_ENCAP_ESPINUDP_NON_IKE encapsulation type
  support was removed. Added TCP/UDP checksum handling for
  inbound packets that were decapsulated by transport mode SAs.
  setkey(8) modified to show run-time NAT-T configuration of SA.
o New network pseudo interface if_ipsec(4) added. For now it is
  build as part of ipsec.ko module (or with IPSEC kernel).
  It implements IPsec virtual tunnels to create route-based VPNs.
o The network stack now invokes IPsec functions using special
  methods. The only one header file <netipsec/ipsec_support.h>
  should be included to declare all the needed things to work
  with IPsec.
o All IPsec protocols handlers (ESP/AH/IPCOMP protosw) were removed.
  Now these protocols are handled directly via IPsec methods.
o TCP_SIGNATURE support was reworked to be more close to RFC.
o PF_KEY SADB was reworked:
  - now all security associations stored in the single SPI namespace,
    and all SAs MUST have unique SPI.
  - several hash tables added to speed up lookups in SADB.
  - SADB now uses rmlock to protect access, and concurrent threads
    can do SA lookups in the same time.
  - many PF_KEY message handlers were reworked to reflect changes
    in SADB.
  - SADB_UPDATE message was extended to support new PF_KEY headers:
    SADB_X_EXT_NEW_ADDRESS_SRC and SADB_X_EXT_NEW_ADDRESS_DST. They
    can be used by IKE daemon to change SA addresses.
o ipsecrequest and secpolicy structures were cardinally changed to
  avoid locking protection for ipsecrequest. Now we support
  only limited number (4) of bundled SAs, but they are supported
  for both INET and INET6.
o INPCB security policy cache was introduced. Each PCB now caches
  used security policies to avoid SP lookup for each packet.
o For inbound security policies added the mode, when the kernel does
  check for full history of applied IPsec transforms.
o References counting rules for security policies and security
  associations were changed. The proper SA locking added into xform
  code.
o xform code was also changed. Now it is possible to unregister xforms.
  tdb_xxx structures were changed and renamed to reflect changes in
  SADB/SPDB, and changed rules for locking and refcounting.

Reviewed by:	gnn, wblock
Obtained from:	Yandex LLC
Relnotes:	yes
Sponsored by:	Yandex LLC
Differential Revision:	https://reviews.freebsd.org/D9352
2017-02-06 08:49:57 +00:00
Xin LI
100e2a06e2 MFV r288243: nc from OpenBSD 5.8. 2015-09-27 07:04:16 +00:00
Xin LI
8c54dbfb9b MFV r282611: netcat from OpenBSD 5.7.
MFC after:	2 weeks
2015-05-07 22:54:31 +00:00
Xin LI
a5570ae0d7 MFV r273617: netcat from OpenBSD 5.6.
MFC after:	2 weeks
2014-10-25 00:37:35 +00:00
Xin LI
3ae0125a99 MFV r258194-264360: nc(1) from OpenBSD 5.5.
MFC after:	2 weeks
2014-04-11 22:12:31 +00:00
Xin LI
5abd6fdcfa MFV: netcat from OpenBSD 5.4.
No functional change.
2013-11-15 22:45:14 +00:00
Xin LI
0772266e63 MFV r249496,249498. The most visible change is that we no longer shuts
down the connection when stdin closes, by default.  This matches Hobbit's
original netcat and GNU netcat.

Old behavior can be restored with the new -N flag.

MFC after:	2 weeks
2013-04-15 05:31:59 +00:00
Xin LI
52dba105d2 MFV: netcat from OpenBSD 5.2.
MFC after:	1 month
2012-10-22 18:56:31 +00:00
Xin LI
ac3ea9104e Merge from OpenBSD 5.1.
MFC after:	3 weeks
2012-05-04 21:03:39 +00:00
Bjoern A. Zeeb
aaf04b7cb6 Switch from setfib(2) moving the process to a different FIB to setsockopt(2)
with SO_SETFIB to only tag the socket with the right FIB.

That way either setfib(1) or nc -V can be used depending on what wants to be
achieved.  This also allows nc to be used for simple regression testing of
either feature.

Sponsored by:	Cisco Systems, Inc.
2012-02-14 11:37:04 +00:00
Xin LI
42821a2fc9 Merge from OpenBSD 5.0 (this is a dummy change, the vendor change does not
apply to us).
2011-12-26 09:07:08 +00:00
Xin LI
59c7ad52aa MFV: nc(1) from OpenBSD 4.9.
MFC after:	1 month
Obtained from:	OpenBSD
2011-05-11 21:52:26 +00:00
Xin LI
4f2bbc00f2 MFV: nc(1) from OpenBSD 4.8.
While I'm there, bump WARNS level to 2 as the vendor
have the right printf format string now.

MFC after:	1 month
Obtained from:	OpenBSD
2010-10-19 00:01:53 +00:00
Xin LI
6856a5e345 Utilize IP_BINDANY which provided the same semantics of OpenBSD's
SO_BINDANY.
2010-04-15 23:21:24 +00:00
Xin LI
55e999851d Diff reduction with OpenBSD:
- Remove unused locally added variable;
 - Deprecate -o: it's the default behavior on OpenBSD.

X-MFC:	along with nc 4.7.
2010-04-15 19:15:05 +00:00
Xin LI
26bf9c3b54 MFV: Update nc to the version from OpenBSD 4.7.
MFC after:	1 month
2010-03-23 23:00:35 +00:00
Xin LI
2d5ea05a45 Update to 4.6.
Note: the -V option from OpenBSD is implemented using setfib(2) on FreeBSD.

MFC after:	2 weeks
2010-01-19 18:45:29 +00:00
Xin LI
1a9dc239f5 Update netcat to the version carried with OpenBSD 4.5. 2009-05-28 23:23:49 +00:00
Xin LI
7dcaa833c8 Merge nc(1) from OpenBSD 4.4. While there, rename our '-O' (no
tcp options) to '--no-tcpopt' in order to resolve a comflicit
with OpenBSD's -O semantics.
2008-12-19 23:00:23 +00:00
Xin LI
b3b9c2bbcb Flatten all tags of the dist tree of netcat. 2008-09-27 00:53:34 +00:00
Antoine Brodin
b6642dadae Document freebsd extensions to netcat a bit better:
- sort the options
- document -o and -O everywhere

Reviewed by:	delphij
Approved by:	rwatson (mentor)
2008-05-10 18:50:45 +00:00
Bruce M Simpson
bc38f653f1 Add an -O option to disable TCP options, for protocol testing purposes.
Do this for active and passive (-l switch) TCP sessions.

MFC after:	1 week
2008-04-01 13:54:24 +00:00
George V. Neville-Neil
8409aedfa6 Commit IPv6 support for FAST_IPSEC to the tree.
This commit includes all remaining changes for the time being including
user space updates.

Submitted by:    bz
Approved by:    re
2007-07-01 12:08:08 +00:00
Xin LI
bdb0aaa123 Resolve conflicts. 2007-03-28 01:57:03 +00:00
Xin LI
b2f6436d8f Import netcat as of today's OPENBSD_4_1 snapshot. 2007-03-28 01:55:49 +00:00
Xin LI
2440a45859 Resolve conflicts. 2006-05-21 15:52:24 +00:00
Xin LI
7a997a696b Import netcat from OpenBSD 3.9-RELEASE. 2006-05-21 15:49:27 +00:00
Xin LI
b0683dae2d Undo the VCS tag move to reduce diff hunks.
Pointed out by:	ru
2005-02-07 05:34:35 +00:00
Xin LI
04def62430 Finish the import of nc(1) from OpenBSD. This includes:
- Bring IPsec support from the ports collection [1].
	- Bring -o ("once only") option from the ports
	  collection [2].
	- Adopt the Makefile framework into
	  usr.bin/nc/Makefile.
	- Add a knob to control whether to build nc(1),
	  NO_NETCAT.
	- Bump __FreeBSD_version so ports collection can
	  detect this change.

Original patchset are contributed to the ports collection by:
[1] nectar, [2] joerg.

Note: WARNS?=6 patchset spined off in this commit, in order not
to take too many files off the vendor branch.
2005-02-06 14:44:27 +00:00
Xin LI
8c384020b3 Import a (stripped) snapshot of OpenBSD's nc(1) an excellent
reimplementation of the famous tool that can do arbitrary TCP
and UDP connections and listens.

This gaves sysadm the same tool the crackers have, so that
they may learn what the network is about and protect it better.
For developers, this is an invaluable debugging tool, and a
good build block of scripts.

Discussed on:	freebsd-hackers@
2005-02-04 08:41:44 +00:00