Commit Graph

25 Commits

Author SHA1 Message Date
Bjoern A. Zeeb
4b79449e2f Rather than using hidden includes (with cicular dependencies),
directly include only the header files needed. This reduces the
unneeded spamming of various headers into lots of files.

For now, this leaves us with very few modules including vnet.h
and thus needing to depend on opt_route.h.

Reviewed by:	brooks, gnn, des, zec, imp
Sponsored by:	The FreeBSD Foundation
2008-12-02 21:37:28 +00:00
Marko Zec
8b615593fc Step 1.5 of importing the network stack virtualization infrastructure
from the vimage project, as per plan established at devsummit 08/08:
http://wiki.freebsd.org/Image/Notes200808DevSummit

Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator
macros, and CURVNET_SET() context setting macros, all currently
resolving to NOPs.

Prepare for virtualization of selected SYSCTL objects by introducing a
family of SYSCTL_V_*() macros, currently resolving to their global
counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT().

Move selected #defines from sys/sys/vimage.h to newly introduced header
files specific to virtualized subsystems (sys/net/vnet.h,
sys/netinet/vinet.h etc.).

All the changes are verified to have zero functional impact at this
point in time by doing MD5 comparision between pre- and post-change
object files(*).

(*) netipsec/keysock.c did not validate depending on compile time options.

Implemented by:	julian, bz, brooks, zec
Reviewed by:	julian, bz, brooks, kris, rwatson, ...
Approved by:	julian (mentor)
Obtained from:	//depot/projects/vimage-commit2/...
X-MFC after:	never
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
2008-10-02 15:37:58 +00:00
Bjoern A. Zeeb
603724d3ab Commit step 1 of the vimage project, (network stack)
virtualization work done by Marko Zec (zec@).

This is the first in a series of commits over the course
of the next few weeks.

Mark all uses of global variables to be virtualized
with a V_ prefix.
Use macros to map them back to their global names for
now, so this is a NOP change only.

We hope to have caught at least 85-90% of what is needed
so we do not invalidate a lot of outstanding patches again.

Obtained from:	//depot/projects/vimage-commit2/...
Reviewed by:	brooks, des, ed, mav, julian,
		jamie, kris, rwatson, zec, ...
		(various people I forgot, different versions)
		md5 (with a bit of help)
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
X-MFC after:	never
V_Commit_Message_Reviewed_By:	more people than the patch
2008-08-17 23:27:27 +00:00
VANHULLEBUS Yvan
97c2a697df Increase statistic counters for enc0 interface when enabled
and processing IPSec traffic.

Approved by:	gnn (mentor)
MFC after:	1 week
2008-08-12 09:05:01 +00:00
Bjoern A. Zeeb
eaa9325f48 In addition to the ipsec_osdep.h removal a week ago, now also eliminate
IPSEC_SPLASSERT_SOFTNET which has been 'unused' since FreeBSD 5.0.
2008-05-24 15:32:46 +00:00
Bjoern A. Zeeb
19ad9831df Add sysctls to if_enc(4) to control whether the firewalls or
bpf will see inner and outer headers or just inner or outer
headers for incoming and outgoing IPsec packets.

This is useful in bpf to not have over long lines for debugging
or selcting packets based on the inner headers.
It also properly defines the behavior of what the firewalls see.

Last but not least it gives you if_enc(4) for IPv6 as well.

[ As some auxiliary state was not available in the later
  input path we save it in the tdbi. That way tcpdump can give a
  consistent view of either of (authentic,confidential) for both
  before and after states. ]

Discussed with:	thompsa (2007-04-25, basic idea of unifying paths)
Reviewed by:	thompsa, gnn
2007-11-28 22:33:53 +00:00
George V. Neville-Neil
e61a9df52b Fix for an infinite loop in processing ESP, IPv6 packets.
The control input routine passes a NULL as its void argument when it
has reached the innermost header, which terminates the loop.

Reported by: Pawel Worach <pawel.worach@gmail.com>
Approved by: re
2007-09-12 05:54:53 +00:00
Bjoern A. Zeeb
b28cd33459 Replace hard coded options by their defined PFIL_{IN,OUT} names.
Approved by:	re (hrs)
2007-07-19 09:57:54 +00:00
Bjoern A. Zeeb
0e41ce659b Looking at {ah,esp}_input_cb it seems we might be able to end up
without an mtag in ipsec4_common_input_cb.
So in case of !IPCOMP (AH,ESP) only change the m_tag_id if an mtag
was passed to ipsec4_common_input_cb.

Found with:	Coverity Prevent(tm)
CID:		2523
2007-06-15 22:23:33 +00:00
Bjoern A. Zeeb
ceda1e7c3e s,#,*, in a multi-line comment. This is C.
No functional change.
2007-06-15 21:34:12 +00:00
Bjoern A. Zeeb
f4760821db Though we are only called for the three security protocols we can
handle, document those sprotos using an IPSEC_ASSERT so that it will
be clear that 'spi' will always be initialized when used the first time.

Found with:	Coverity Prevent(tm)
CID:		2533
2007-06-15 21:32:51 +00:00
Bjoern A. Zeeb
224c45c4f2 s,#if INET6,#ifdef INET6,
This unbreaks the build for FAST_IPSEC && !INET6 and was wrong anyway.

Reported by:	Dmitry Pryanishnikov <dmitry atlantis.dp.ua>
2006-12-14 17:33:46 +00:00
Bjoern A. Zeeb
1d54aa3ba9 MFp4: 92972, 98913 + one more change
In ip6_sprintf no longer use and return one of eight static buffers
for printing/logging ipv6 addresses.
The caller now has to hand in a sufficiently large buffer as first
argument.
2006-12-12 12:17:58 +00:00
Andrew Thompson
bdea400f3b Add a pseudo interface for packet filtering IPSec connections before or after
encryption. There are two functions, a bpf tap which has a basic header with
the SPI number which our current tcpdump knows how to display, and handoff to
pfil(9) for packet filtering.

Obtained from:	OpenBSD
Based on:	kern/94829
No objections:	arch, net
MFC after:	1 month
2006-06-26 22:30:08 +00:00
Pawel Jakub Dawidek
49ddabdfce Change '#if INET' and '#if INET6' to '#ifdef INET' and '#ifdef INET6'.
This unbreaks compiling a kernel with FAST_IPSEC and no INET6.
2006-06-04 19:32:32 +00:00
George V. Neville-Neil
79bc655b50 Extend the notdef #ifdef to cover the packet copy as there is no point in doing that if we're not doing the rest of the work.
Submitted by:	thompsa
MFC after: 1 week
2006-06-04 03:11:09 +00:00
Warner Losh
c398230b64 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
Andre Oppermann
3161f583ca Apply error and success logic consistently to the function netisr_queue() and
its users.

netisr_queue() now returns (0) on success and ERRNO on failure.  At the
moment ENXIO (netisr queue not functional) and ENOBUFS (netisr queue full)
are supported.

Previously it would return (1) on success but the return value of IF_HANDOFF()
was interpreted wrongly and (0) was actually returned on success.  Due to this
schednetisr() was never called to kick the scheduling of the isr.  However this
was masked by other normal packets coming through netisr_dispatch() causing the
dequeueing of waiting packets.

PR:		kern/70988
Found by:	MOROHOSHI Akihiko <moro@remus.dti.ne.jp>
MFC after:	3 days
2004-08-27 18:33:08 +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
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
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
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