Commit Graph

68 Commits

Author SHA1 Message Date
bms
3e83ac6653 Make IPv6 multicast forwarding dynamically loadable from a GENERIC kernel.
It is built in the same module as IPv4 multicast forwarding, i.e. ip_mroute.ko,
if and only if IPv6 support is enabled for loadable modules.
Export IPv6 forwarding structs to userland netstat(1) via sysctl(9).
2007-02-24 11:38:47 +00:00
bz
2ea10fad24 In ip6_sprintf print the addresses in a more common/readable
format eliminating leading zeros like in :0001 -> :1.

Reviewed by:	mlaier
2006-12-16 14:15:31 +00:00
bz
297206ec2a 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
rwatson
10d0d9cf47 Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
suz
b119ccaff8 fixed a bug that IPv6 packets arriving to stf are not accepted.
(a degrade introduced in in6.c Rev 1.61)

PR: kern/103415
Submitted by: JINMEI Tatuya
MFC after: 1 week
2006-09-22 01:42:22 +00:00
brooks
bc6ab54808 With exception of the if_name() macro, all definitions in net_osdep.h
were unused or already in if_var.h so add if_name() to if_var.h and
remove net_osdep.h along with all references to it.

Longer term we may want to kill off if_name() entierly since all modern
BSDs have if_xname variables rendering it unnecessicary.
2006-08-04 21:27:40 +00:00
yar
ba19b1ecd4 There is a consensus that ifaddr.ifa_addr should never be NULL,
except in places dealing with ifaddr creation or destruction; and
in such special places incomplete ifaddrs should never be linked
to system-wide data structures.  Therefore we can eliminate all the
superfluous checks for "ifa->ifa_addr != NULL" and get ready
to the system crashing honestly instead of masking possible bugs.

Suggested by:	glebius, jhb, ru
2006-06-29 19:22:05 +00:00
gnn
3b364427e5 Fix spurious warnings from neighbor discovery when working with IPv6 over
point to point tunnels (gif).

PR:		93220
Submitted by:	Jinmei Tatuya
MFC after:	1 week
2006-06-08 00:31:17 +00:00
gnn
4d8070a25b Fix for an inappropriate bzero of the ICMPv6 stats. The code was zero'ing the wrong structure member but setting the correct one.
Submitted by:	James dot Juran at baesystems dot com
Reviewed by:	gnn
MFC after:	1 week
2006-02-08 07:16:46 +00:00
suz
419a678b5e statically configured IPv6 address is properly added/deleted now
Obtained from: KAME
Reported in: freebsd-net@freebsd
MFC after: 1 day
2005-10-31 23:06:04 +00:00
suz
55b3e47503 fixed a compilation failure on amd64/sparc64/ia64
Submitted by: max
MFC after: 2 month
2005-10-22 05:07:16 +00:00
suz
c2b19f24a4 sync with KAME regarding NDP
- introduced fine-grain-timer to manage ND-caches and IPv6 Multicast-Listeners
- supports Router-Preference <draft-ietf-ipv6-router-selection-07.txt>
- better prefix lifetime management
- more spec-comformant DAD advertisement
- updated RFC/internet-draft revisions

Obtained from: KAME
Reviewed by: ume, gnn
MFC after: 2 month
2005-10-21 16:23:01 +00:00
suz
7cb7aed97b added an ioctl option in kernel so that ndp/rtadvd can change some NDP-related kernel variables based on their configurations (RFC2461 p.43 6.2.1 mandates this for IPv6 routers)
Obtained from: KAME
Reviewd by: ume, gnn
MFC after: 2 weeks
2005-10-19 15:05:42 +00:00
suz
21f42e535f sync with KAME in the following points:
- fixed typos
- improved some comment descriptions
- use NULL, instead of 0, to denote a NULL pointer
- avoid embedding a magic number in the code
- use nd6log() instead of log() to record NDP-specific logs
- nuked an unnecessay white space

Obtained from: KAME
MFC after:  1 day
2005-10-19 10:09:19 +00:00
obrien
c532dfe745 IPv6 was improperly defining its malloc type the same as IPv4 (M_IPMADDR,
M_IPMOPTS, M_MRTABLE).  Thus we had conflicting instantiations.
Create an IPv6-specific type to overcome this.
2005-09-07 10:11:49 +00:00
rwatson
5d770a09e8 Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
ume
da2cf62b28 scope cleanup. with this change
- most of the kernel code will not care about the actual encoding of
  scope zone IDs and won't touch "s6_addr16[1]" directly.
- similarly, most of the kernel code will not care about link-local
  scoped addresses as a special case.
- scope boundary check will be stricter.  For example, the current
  *BSD code allows a packet with src=::1 and dst=(some global IPv6
  address) to be sent outside of the node, if the application do:
    s = socket(AF_INET6);
    bind(s, "::1");
    sendto(s, some_global_IPv6_addr);
  This is clearly wrong, since ::1 is only meaningful within a single
  node, but the current implementation of the *BSD kernel cannot
  reject this attempt.

Submitted by:	JINMEI Tatuya <jinmei__at__isl.rdc.toshiba.co.jp>
Obtained from:	KAME
2005-07-25 12:31:43 +00:00
iedowse
7de9a3957f Use IFF_LOCKGIANT/IFF_UNLOCKGIANT around calls to the interface
if_ioctl routine. This should fix a number of code paths through
soo_ioctl() that could call into Giant-locked network drivers without
first acquiring Giant.
2005-06-02 00:04:08 +00:00
glebius
e1d22638d0 Add CARP (Common Address Redundancy Protocol), which allows multiple
hosts to share an IP address, providing high availability and load
balancing.

Original work on CARP done by Michael Shalayeff, with many
additions by Marco Pfatschbacher and Ryan McBride.

FreeBSD port done solely by Max Laier.

Patch by:	mlaier
Obtained from:	OpenBSD (mickey, mcbride)
2005-02-22 13:04:05 +00:00
imp
2b54eeafae /* -> /*- for license, minor formatting changes, separate for KAME 2005-01-07 02:30:35 +00:00
rwatson
b1d9338b73 Remove in6_prefix.[ch] and the contained router renumbering capability.
The prefix management code currently resides in nd6, leaving only the
unused router renumbering capability in the in6_prefix files.  Removing
it will make it easier for us to provide locking for the remainder of
IPv6 by reducing the number of objects requiring synchronized access.

This functionality has also been removed from NetBSD and OpenBSD.

Submitted by:	George Neville-Neil <gnn at neville-neil.com>
Discussed with/approved by:	suz, keiichi at kame.net, core at kame.net
2004-08-23 03:00:27 +00:00
imp
b49b7fe799 Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson
2004-04-07 20:46:16 +00:00
ume
996df05b78 move in6_addmulti()/in6_delmulti() into mld6.c
Obtained from:	KAME
2004-03-04 15:07:42 +00:00
ume
450e7b33b6 missing splx().
Obtained from:	KAME
MFC after:	3 days
2004-03-04 12:08:25 +00:00
ume
b71d361468 - stlye and comments
- variable name change (scopeid -> zoneid)
- u_short -> u_int16_t, u_char -> u_int8_t

Obtained from:	KAME
2004-03-03 14:33:16 +00:00
mlaier
d937176b34 Bring eventhandler callbacks for pf.
This enables pf to track dynamic address changes on interfaces (dailup) with
the "on (<ifname>)"-syntax. This also brings hooks in anticipation of
tracking cloned interfaces, which will be in future versions of pf.

Approved by: bms(mentor)
2004-02-26 04:27:55 +00:00
cperciva
9678edca4f Fix array overflow: If len=128, don't access [16] of a 16-byte IPv6
address, even if we subsequently ignore its value by applying a >>8
to it.

Reported by:	"Ted Unangst" <tedu@coverity.com>
Approved by:	rwatson (mentor), {ume, suz} (KAME)
2004-02-24 01:20:51 +00:00
ume
c757933596 try rtinit() only when the route is not installed.
this allows, e.g., duplicated attempts of 'ifconfig lo0 ::1'
like for IPv4.

Obtained from:	KAME
MFC after:	1 week
2004-01-10 08:59:21 +00:00
sam
c997776d7c replace explicit changes to rt_refcnt by RT_ADDREF and RT_REMREF
macros that expand to include assertions when the system is built
with INVARIANTS

Supported by:	FreeBSD Foundation
2003-11-08 23:36:32 +00:00
ume
d2486e878b byebye in6_ifawithscope(). it was a function for old source
address selection.

Obtained from:	KAME
2003-11-05 17:19:31 +00:00
ume
6c2d58b0b2 use nd6log().
Obtained from:	KAME
2003-11-04 14:09:37 +00:00
ume
f06677c31d add management part of address selection policy described in
RFC3484.

Obtained from:	KAME
2003-10-30 15:29:17 +00:00
sam
f188fceee7 correct LOR by using a local variable to hold result
instead of holding a lock while calling out of view

Supported by:	FreeBSD Foundation
2003-10-29 22:59:12 +00:00
ume
5199c863f8 - change scope to zone.
- change node-local to interface-local.
- better error handling of address-to-scope mapping.
- use in6_clearscope().

Obtained from:	KAME
2003-10-21 20:05:32 +00:00
ume
1bfb498609 correct linkmtu handling.
Obtained from:	KAME
2003-10-20 15:27:48 +00:00
ume
31759c0525 nuke duplicate function and unused function.
Obtained from:	KAME
2003-10-17 17:50:09 +00:00
ume
89eb79f30b revert wrongly dropped null check by previous commit. 2003-10-17 17:34:31 +00:00
ume
babf2c3ec0 - add dom_if{attach,detach} framework.
- transition to use ifp->if_afdata.

Obtained from:	KAME
2003-10-17 15:46:31 +00:00
ume
a72f1bdb76 nuke SCOPEDROUTING. Though it was there for a long time,
it was never enabled.
2003-10-10 16:04:00 +00:00
ume
399a4e7221 - fix typo in comment.
- style.

Obtained from:	KAME
2003-10-07 17:46:18 +00:00
ume
6c1377b9ef return(code) -> return (code)
(reduce diffs against KAME)
2003-10-06 14:02:09 +00:00
sam
9d93fce265 Locking for updates to routing table entries. Each rtentry gets a mutex
that covers updates to the contents.  Note this is separate from holding
a reference and/or locking the routing table itself.

Other/related changes:

o rtredirect loses the final parameter by which an rtentry reference
  may be returned; this was never used and added unwarranted complexity
  for locking.
o minor style cleanups to routing code (e.g. ansi-fy function decls)
o remove the logic to bump the refcnt on the parent of cloned routes,
  we assume the parent will remain as long as the clone; doing this avoids
  a circularity in locking during delete
o convert some timeouts to MPSAFE callouts

Notes:

1. rt_mtx in struct rtentry is guarded by #ifdef _KERNEL as user-level
   applications cannot/do-no know about mutex's.  Doing this requires
   that the mutex be the last element in the structure.  A better solution
   is to introduce an externalized version of struct rtentry but this is
   a major task because of the intertwining of rtentry and other data
   structures that are visible to user applications.
2. There are known LOR's that are expected to go away with forthcoming
   work to eliminate many held references.  If not these will be resolved
   prior to release.
3. ATM changes are untested.

Sponsored by:	FreeBSD Foundation
Obtained from:	BSD/OS (partly)
2003-10-04 03:44:50 +00:00
imp
cf874b345d Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
alfred
bf8e8a6e8f 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
ru
2719b5ea8c If the caller of rtrequest*(RTM_DELETE, ...) asked for a copy of
the entry being removed (ret_nrt != NULL), increment the entry's
rt_refcnt like we do it for RTM_ADD and RTM_RESOLVE, rather than
messing around with 1->0 transitions for rtfree() all over.
2002-12-25 10:21:02 +00:00
hsu
82e1e3bab0 SMP locking for ifnet list. 2002-12-22 05:35:03 +00:00
hsu
c3153934cb Lock up ifaddr reference counts. 2002-12-18 11:46:59 +00:00
suz
553226e8e1 just merged cosmetic changes from KAME to ease sync between KAME and FreeBSD.
(based on freebsd4-snap-20020128)

Reviewed by:	ume
MFC after:	1 week
2002-04-19 04:46:24 +00:00
jhb
dc2e474f79 Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
alfred
9da4687481 Fix warnings caused by discarding const.
Hairy Eyeball At: peter
2002-02-27 02:44:45 +00:00