Commit Graph

46 Commits

Author SHA1 Message Date
Bruce M Simpson
8eafa045d7 Add required includes for post-sorwakeup() change to fix FAST_IPSEC
compilation.
2004-06-23 01:58:22 +00:00
Bruce M Simpson
171ed0933c Fix a paste-o in key_cmpspidx_withmask().
PR:		misc/67013
Submitted by:	Zhenmin <zli4@cs.uiuc.edu>
2004-06-22 17:17:44 +00:00
Sam Leffler
2c5616421b use correct address for SADB_EXT_ADDRESS_DST in key_do_allocsa_policy
(was using src instead of dst)

Submitted by:	Bjoern A. Zeeb
Obtained from:	KAME
MFC after:	1 day
2004-05-03 05:15:53 +00:00
Sam Leffler
9826472d13 correct behaviour of key_getsavbyspi broken in rev 1.7; corrects problems with
removing specific SPIs

Submitted by:	Bjoern A. Zeeb
2004-05-03 05:11:40 +00:00
Sam Leffler
09a6afb586 add support to prefer old SA to new SA during allocation
(makes net.key.preferred_oldsa work as for KAME)

Submitted by:	gabor@sentex.net
Reviewed by:	Bjoern A. Zeeb
MFC after:	1 day
2004-05-03 03:29:21 +00:00
Bruce M Simpson
3a2366dc0f Fix a debugging printf snafu. 2004-04-20 14:53:35 +00:00
Luigi Rizzo
92803b6696 use native names for if_link, ifa_link, if_addrhead.
Change for (...) to TAILQ_FOREACH(...)

Ok'ed by: sam
2004-04-17 23:29:25 +00:00
Pawel Jakub Dawidek
2bf11a9911 Unbreak FAST_IPSEC build on 64 bit archs with INVARIANTS.
Approved by:	sam
2004-04-07 00:19:02 +00:00
Bruce M Simpson
55d2c71b88 This file was erroneously removed from HEAD when TCP-MD5 support was MFC'd;
correct this lameness.
2004-04-03 05:31:38 +00:00
Guido van Rooij
517dbe6673 Fix type in a sysctl. It used to be: net.key.prefered_oldsa
and is corrected to net.key.preferred_oldsa
This makes it consistent with the KAME IPsec implementation.

Approved by:	sam
2004-02-16 17:09:53 +00:00
Bruce M Simpson
1cfd4b5326 Initial import of RFC 2385 (TCP-MD5) digest support.
This is the first of two commits; bringing in the kernel support first.
This can be enabled by compiling a kernel with options TCP_SIGNATURE
and FAST_IPSEC.

For the uninitiated, this is a TCP option which provides for a means of
authenticating TCP sessions which came into being before IPSEC. It is
still relevant today, however, as it is used by many commercial router
vendors, particularly with BGP, and as such has become a requirement for
interconnect at many major Internet points of presence.

Several parts of the TCP and IP headers, including the segment payload,
are digested with MD5, including a shared secret. The PF_KEY interface
is used to manage the secrets using security associations in the SADB.

There is a limitation here in that as there is no way to map a TCP flow
per-port back to an SPI without polluting tcpcb or using the SPD; the
code to do the latter is unstable at this time. Therefore this code only
supports per-host keying granularity.

Whilst FAST_IPSEC is mutually exclusive with KAME IPSEC (and thus IPv6),
TCP_SIGNATURE applies only to IPv4. For the vast majority of prospective
users of this feature, this will not pose any problem.

This implementation is output-only; that is, the option is honoured when
responding to a host initiating a TCP session, but no effort is made
[yet] to authenticate inbound traffic. This is, however, sufficient to
interwork with Cisco equipment.

Tested with a Cisco 2501 running IOS 12.0(27), and Quagga 0.96.4 with
local patches. Patches for tcpdump to validate TCP-MD5 sessions are also
available from me upon request.

Sponsored by:	sentex.net
2004-02-11 04:26:04 +00:00
Sam Leffler
9b705967d2 must convert protocol to sa type when preparing a DELETE message
Submitted by:	Roselyn Lee <rosel@verniernetworks.com>
MFC after:	1 week
2004-02-05 23:19:17 +00:00
Sam Leffler
8381996e5d o add missing break
o remove extraneous bzero
o add SYSINIT to properly initialize ip4_def_policy

Submitted by:	"Bjoern A. Zeeb" <bzeeb+freebsd@zabbadoz.net>
Submitted by:	gnn@neville-neil.com
2004-01-27 17:45:28 +00:00
Sam Leffler
8976be9465 change SYSINIT starting point to be consistent with other modules 2004-01-27 17:43:49 +00:00
Sam Leffler
6fd91c14d6 add spdcachelookup and spdcachemiss to our version of struct ipsecstat so
netstat works properly

Submitted by:	"Bjoern A. Zeeb" <bzeeb+freebsd@zabbadoz.net>
2004-01-27 17:42:57 +00:00
Sam Leffler
b5b47bc6fa Fix ipip_output() to always set *mp to NULL on failure, even if 'm'
is NULL, otherwise ipsec4_process_packet() may try to m_freem() a
bad pointer.

In ipsec4_process_packet(), don't try to m_freem() 'm' twice; ipip_output()
already did it.

Obtained from:	netbsd
2004-01-20 22:45:10 +00:00
Sam Leffler
c58cde95d1 fix build after KAME changes 2004-01-20 22:44:21 +00:00
Bruce M Simpson
37621fd5d9 Push m_apply() and m_getptr() up into the colleciton of standard mbuf
routines, and purge them from opencrypto.

Reviewed by:	sam
Obtained from:	NetBSD
Sponsored by:	spc.org
2003-12-15 21:49:41 +00:00
Robert Watson
a557af222b Introduce a MAC label reference in 'struct inpcb', which caches
the   MAC label referenced from 'struct socket' in the IPv4 and
IPv6-based protocols.  This permits MAC labels to be checked during
network delivery operations without dereferencing inp->inp_socket
to get to so->so_label, which will eventually avoid our having to
grab the socket lock during delivery at the network layer.

This change introduces 'struct inpcb' as a labeled object to the
MAC Framework, along with the normal circus of entry points:
initialization, creation from socket, destruction, as well as a
delivery access control check.

For most policies, the inpcb label will simply be a cache of the
socket label, so a new protocol switch method is introduced,
pr_sosetlabel() to notify protocols that the socket layer label
has been updated so that the cache can be updated while holding
appropriate locks.  Most protocols implement this using
pru_sosetlabel_null(), but IPv4/IPv6 protocols using inpcbs use
the the worker function in_pcbsosetlabel(), which calls into the
MAC Framework to perform a cache update.

Biba, LOMAC, and MLS implement these entry points, as do the stub
policy, and test policy.

Reviewed by:	sam, bms
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2003-11-18 00:39:07 +00:00
Sam Leffler
9ffa96777e MFp4: portability work, general cleanup, locking fixes
change 38496
o add ipsec_osdep.h that holds os-specific definitions for portability
o s/KASSERT/IPSEC_ASSERT/ for portability
o s/SPLASSERT/IPSEC_SPLASSERT/ for portability
o remove function names from ASSERT strings since line#+file pinpints
  the location
o use __func__ uniformly to reduce string storage
o convert some random #ifdef DIAGNOSTIC code to assertions
o remove some debuggging assertions no longer needed

change 38498
o replace numerous bogus panic's with equally bogus assertions
  that at least go away on a production system

change 38502 + 38530
o change explicit mtx operations to #defines to simplify
  future changes to a different lock type

change 38531
o hookup ipv4 ctlinput paths to a noop routine; we should be
  handling path mtu changes at least
o correct potential null pointer deref in ipsec4_common_input_cb

chnage 38685
o fix locking for bundled SA's and for when key exchange is required

change 38770
o eliminate recursion on the SAHTREE lock

change 38804
o cleanup some types: long -> time_t
o remove refrence to dead #define

change 38805
o correct some types: long -> time_t
o add scan generation # to secpolicy to deal with locking issues

change 38806
o use LIST_FOREACH_SAFE instead of handrolled code
o change key_flush_spd to drop the sptree lock before purging
  an entry to avoid lock recursion and to avoid holding the lock
  over a long-running operation
o misc cleanups of tangled and twisty code

There is still much to do here but for now things look to be
working again.

Supported by:	FreeBSD Foundation
2003-09-29 22:57:43 +00:00
Sam Leffler
1a920b1142 os dependency glue file for improving portability
Submitted by:	<jonathan@decru.com>
Supported by:	FreeBSD Foundation
Obtained from:	NetBSD
2003-09-29 22:47:45 +00:00
Sam Leffler
6464079f10 Locking and misc cleanups; most of which I've been running for >4 months:
o add locking
o strip irrelevant spl's
o split malloc types to better account for memory use
o remove unused IPSEC_NONBLOCK_ACQUIRE code
o remove dead code

Sponsored by:	FreeBSD Foundation
2003-09-01 05:35:55 +00:00
Sam Leffler
4dbc6e51df make sure the packets contains a complete inner header
for ip{4,6}-in-ip{4,6} encapsulation; fixes panic
for truncated ip-in-ip over ipsec

Submitted by:	Markus Friedl <markus@openbsd.org>
Obtained from:	OpenBSD (rev 1.66 ipsec_input.c)
2003-08-13 22:36:24 +00:00
Sam Leffler
d8409aaf6e consolidate callback optimization check in one location by adding a flag
for crypto operations that indicates the crypto code should do the check
in crypto_done

MFC after:	1 day
2003-06-30 05:09:32 +00:00
Sam Leffler
5d1dbc0e55 correct transfer statistics
Submitted by:	Larry Baird <lab@gta.com>
MFC after:	1 day
2003-06-30 05:05:19 +00:00
Sam Leffler
82a6d6aca5 plug xform memory leaks:
o add missing zeroize op when deleting an SA
o don't re-initialize an xform for an SA that already has one

Submitted by:	Doug Ambrisko <ambrisko@verniernetworks.com>
MFC after:	1 day
2003-06-29 23:58:38 +00:00
Sam Leffler
1bb98f3b7b Check crypto driver capabilities and if the driver operates synchronously
mark crypto requests with ``callback immediately'' to avoid doing a context
switch to return crypto results.  This completes the work to eliminate
context switches for using software crypto via the crypto subsystem (with
symmetric crypto ops).
2003-06-27 20:10:03 +00:00
Dag-Erling Smørgrav
fe58453891 Introduce an M_ASSERTPKTHDR() macro which performs the very common task
of asserting that an mbuf has a packet header.  Use it instead of hand-
rolled versions wherever applicable.

Submitted by:	Hiten Pandya <hiten@unixdaemons.com>
2003-04-08 14:25:47 +00:00
Dag-Erling Smørgrav
e1fec84a4a ovbcopy -> bcopy 2003-04-04 12:56:20 +00:00
Dag-Erling Smørgrav
2aebee88f3 Replace ovbcopy() with bcopy(). 2003-04-04 12:15:20 +00:00
Sam Leffler
aaea26ef3f add missing copyright notices
Noticed by:	Robert Watson
2003-03-28 20:28:05 +00:00
Jonathan Lemon
1cafed3941 Update netisr handling; Each SWI now registers its queue, and all queue
drain routines are done by swi_net, which allows for better queue control
at some future point.  Packets may also be directly dispatched to a netisr
instead of queued, this may be of interest at some installations, but
currently defaults to off.

Reviewed by: hsu, silby, jayanth, sam
Sponsored by: DARPA, NAI Labs
2003-03-04 23:19:55 +00:00
Sam Leffler
595064e871 fix compilation w/o INET6
Noticed by:	"James E. Flemer" <jflemer@acm.jhu.edu>
2003-02-28 20:06:29 +00:00
Jonathan Lemon
9c3309d174 Update to work with the new timewait state.
Reviewed by: sam
2003-02-24 02:06:02 +00:00
Sam Leffler
eb73a605cd o add a CRYPTO_F_CBIMM flag to symmetric ops to indicate the callback
should be done in crypto_done rather than in the callback thread
o use this flag to mark operations from /dev/crypto since the callback
  routine just does a wakeup; this eliminates the last unneeded ctx switch
o change CRYPTO_F_NODELAY to CRYPTO_F_BATCH with an inverted meaning
  so "0" becomes the default/desired setting (needed for user-mode
  compatibility with openbsd)
o change crypto_dispatch to honor CRYPTO_F_BATCH instead of always
  dispatching immediately
o remove uses of CRYPTO_F_NODELAY
o define COP_F_BATCH for ops submitted through /dev/crypto and pass
  this on to the op that is submitted

Similar changes and more eventually coming for asymmetric ops.

MFC if re gives approval.
2003-02-23 07:25:48 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Andrey A. Chernov
24a701b269 Comment out srandom():
1) Already called in init_main.c:proc0_post()
2) Seed is bad
2003-02-05 15:32:24 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Sam Leffler
972136fa24 o handle jumbograms in m_clone
o fixup some comments

Submitted by:	Doug Ambrisko <ambrisko@verniernetworks.com>
2003-01-09 05:30:25 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Sam Leffler
9967cafc49 Correct mbuf packet header propagation. Previously, packet headers
were sometimes propagated using M_COPY_PKTHDR which actually did
something between a "move" and a  "copy" operation.  This is replaced
by M_MOVE_PKTHDR (which copies the pkthdr contents and "removes" it
from the source mbuf) and m_dup_pkthdr which copies the packet
header contents including any m_tag chain.  This corrects numerous
problems whereby mbuf tags could be lost during packet manipulations.

These changes also introduce arguments to m_tag_copy and m_tag_copy_chain
to specify if the tag copy work should potentially block.  This
introduces an incompatibility with openbsd which we may want to revisit.

Note that move/dup of packet headers does not handle target mbufs
that have a cluster bound to them.  We may want to support this;
for now we watch for it with an assert.

Finally, M_COPYFLAGS was updated to include M_FIRSTFRAG|M_LASTFRAG.

Supported by:	Vernier Networks
Reviewed by:	Robert Watson <rwatson@FreeBSD.org>
2002-12-30 20:22:40 +00:00
Sam Leffler
d47693eb7a o cannot use M_COPY_PKTHDR on an mbuf that has a cluster; if we need to
do this avoid m_getcl so we can copy the packet header to a clean mbuf
  before adding the cluster
o move an assert to the right place

Supported by:	Vernier Networks
2002-12-30 02:15:18 +00:00
Jeffrey Hsu
b30a244c34 SMP locking for ifnet list. 2002-12-22 05:35:03 +00:00
Bosko Milekic
86fea6be59 o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and
the mbuf allocator flags {M_TRYWAIT, M_DONTWAIT}.
o Fix a bpf_compat issue where malloc() was defined to just call
  bpf_alloc() and pass the 'canwait' flag(s) along.  It's been changed
  to call bpf_alloc() but pass the corresponding M_TRYWAIT or M_DONTWAIT
  flag (and only one of those two).

Submitted by: Hiten Pandya <hiten@unixdaemons.com> (hiten->commit_count++)
2002-12-19 22:58:27 +00:00
Sam Leffler
e8539d32f0 FAST_IPSEC fixups:
o fix #ifdef typo
o must use "bounce functions" when dispatched from the protosw table

don't know how this stuff was missed in my testing; must've committed
the wrong bits

Pointy hat:	sam
Submitted by:	"Doug Ambrisko" <ambrisko@verniernetworks.com>
2002-11-08 23:37:50 +00:00
Sam Leffler
88768458d2 "Fast IPsec": this is an experimental IPsec implementation that is derived
from the KAME IPsec implementation, but with heavy borrowing and influence
of openbsd.  A key feature of this implementation is that it uses the kernel
crypto framework to do all crypto work so when h/w crypto support is present
IPsec operation is automatically accelerated.  Otherwise the protocol
implementations are rather differet while the SADB and policy management
code is very similar to KAME (for the moment).

Note that this implementation is enabled with a FAST_IPSEC option.  With this
you get all protocols; i.e. there is no FAST_IPSEC_ESP option.

FAST_IPSEC and IPSEC are mutually exclusive; you cannot build both into a
single system.

This software is well tested with IPv4 but should be considered very
experimental (i.e. do not deploy in production environments).  This software
does NOT currently support IPv6.  In fact do not configure FAST_IPSEC and
INET6 in the same system.

Obtained from:	KAME + openbsd
Supported by:	Vernier Networks
2002-10-16 02:10:08 +00:00