Commit graph

2997 commits

Author SHA1 Message Date
David S. Miller
2518c7c2b3 [XFRM]: Hash policies when non-prefixed.
This idea is from Alexey Kuznetsov.

It is common for policies to be non-prefixed.  And for
that case we can optimize lookups, insert, etc. quite
a bit.

For each direction, we have a dynamically sized policy
hash table for non-prefixed policies.  We also have a
hash table on policy->index.

For prefixed policies, we have a list per-direction which
we will consult on lookups when a non-prefix hashtable
lookup fails.

This still isn't as efficient as I would like it.  There
are four immediate problems:

1) Lots of excessive refcounting, which can be fixed just
   like xfrm_state was
2) We do 2 hash probes on insert, one to look for dups and
   one to allocate a unique policy->index.  Althought I wonder
   how much this matters since xfrm_state inserts do up to
   3 hash probes and that seems to perform fine.
3) xfrm_policy_insert() is very complex because of the priority
   ordering and entry replacement logic.
4) Lots of counter bumping, in addition to policy refcounts,
   in the form of xfrm_policy_count[].  This is merely used
   to let code path(s) know that some IPSEC rules exist.  So
   this count is indexed per-direction, maybe that is overkill.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:48 -07:00
David S. Miller
c1969f294e [XFRM]: Hash xfrm_state objects by source address too.
The source address is always non-prefixed so we should use
it to help give entropy to the bydst hash.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:47 -07:00
David S. Miller
a47f0ce05a [XFRM]: Kill excessive refcounting of xfrm_state objects.
The refcounting done for timers and hash table insertions
are just wasted cycles.  We can eliminate all of this
refcounting because:

1) The implicit refcount when the xfrm_state object is active
   will always be held while the object is in the hash tables.
   We never kfree() the xfrm_state until long after we've made
   sure that it has been unhashed.

2) Timers are even easier.  Once we mark that x->km.state as
   anything other than XFRM_STATE_VALID (__xfrm_state_delete
   sets it to XFRM_STATE_DEAD), any timer that fires will
   do nothing and return without rearming the timer.

   Therefore we can defer the del_timer calls until when the
   object is about to be freed up during GC.  We have to use
   del_timer_sync() and defer it to GC because we can't do
   a del_timer_sync() while holding x->lock which all callers
   of __xfrm_state_delete hold.

This makes SA changes even more light-weight.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:47 -07:00
David S. Miller
1c09539975 [XFRM]: Purge dst references to deleted SAs passively.
Just let GC and other normal mechanisms take care of getting
rid of DST cache references to deleted xfrm_state objects
instead of walking all the policy bundles.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:46 -07:00
David S. Miller
c7f5ea3a4d [XFRM]: Do not flush all bundles on SA insert.
Instead, simply set all potentially aliasing existing xfrm_state
objects to have the current generation counter value.

This will make routes get relooked up the next time an existing
route mentioning these aliased xfrm_state objects gets used,
via xfrm_dst_check().

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:45 -07:00
David S. Miller
2575b65434 [XFRM]: Simplify xfrm_spi_hash
It can use __xfrm{4,6}_addr_hash().

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:44 -07:00
David S. Miller
a624c108e5 [XFRM]: Put more keys into destination hash function.
Besides the daddr, key the hash on family and reqid too.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:43 -07:00
David S. Miller
9d4a706d85 [XFRM]: Add generation count to xfrm_state and xfrm_dst.
Each xfrm_state inserted gets a new generation counter
value.  When a bundle is created, the xfrm_dst objects
get the current generation counter of the xfrm_state
they will attach to at dst->xfrm.

xfrm_bundle_ok() will return false if it sees an
xfrm_dst with a generation count different from the
generation count of the xfrm_state that dst points to.

This provides a facility by which to passively and
cheaply invalidate cached IPSEC routes during SA
database changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:42 -07:00
David S. Miller
f034b5d4ef [XFRM]: Dynamic xfrm_state hash table sizing.
The grow algorithm is simple, we grow if:

1) we see a hash chain collision at insert, and
2) we haven't hit the hash size limit (currently 1*1024*1024 slots), and
3) the number of xfrm_state objects is > the current hash mask

All of this needs some tweaking.

Remove __initdata from "hashdist" so we can use it safely at run time.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:41 -07:00
David S. Miller
8f126e37c0 [XFRM]: Convert xfrm_state hash linkage to hlists.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:40 -07:00
David S. Miller
edcd582152 [XFRM]: Pull xfrm_state_by{spi,src} hash table knowledge out of afinfo.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:39 -07:00
David S. Miller
2770834c9f [XFRM]: Pull xfrm_state_bydst hash table knowledge out of afinfo.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:38 -07:00
Masahide NAKAMURA
64d9fdda8e [XFRM] IPV6: Support Mobile IPv6 extension headers sorting.
Support Mobile IPv6 extension headers sorting for two transformation policies.
Mobile IPv6 extension headers should be placed after IPsec
transport mode, but before transport AH when outbound.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:37 -07:00
Masahide NAKAMURA
58c949d1b9 [XFRM] IPV6: Add sort functions to combine templates/states for IPsec.
Add sort functions to combine templates/states for IPsec.
Think of outbound transformation order we should be careful with transport AH
which must be the last of all transport ones.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:36 -07:00
Masahide NAKAMURA
f7b6983f0f [XFRM] POLICY: Support netlink socket interface for sub policy.
Sub policy can be used through netlink socket.
PF_KEY uses main only and it is TODO to support sub.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:35 -07:00
Masahide NAKAMURA
41a49cc3c0 [XFRM]: Add sorting interface for state and template.
Under two transformation policies it is required to merge them.
This is a platform to sort state for outbound and templates
for inbound respectively.
It will be used when Mobile IPv6 and IPsec are used at the same time.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:34 -07:00
Masahide NAKAMURA
4e81bb8336 [XFRM] POLICY: sub policy support.
Sub policy is introduced. Main and sub policy are applied the same flow.
(Policy that current kernel uses is named as main.)
It is required another transformation policy management to keep IPsec
and Mobile IPv6 lives separate.
Policy which lives shorter time in kernel should be a sub i.e. normally
main is for IPsec and sub is for Mobile IPv6.
(Such usage as two IPsec policies on different database can be used, too.)

Limitation or TODOs:
 - Sub policy is not supported for per socket one (it is always inserted as main).
 - Current kernel makes cached outbound with flowi to skip searching database.
   However this patch makes it disabled only when "two policies are used and
   the first matched one is bypass case" because neither flowi nor bundle
   information knows about transformation template size.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-09-22 15:08:34 -07:00
Masahide NAKAMURA
c11f1a15c5 [XFRM] POLICY: Add Kconfig to support sub policy.
Add Kconfig to support sub policy.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:33 -07:00
Masahide NAKAMURA
01be8e5d59 [IPV6] MIP6: Ignore to report if mobility headers is rejected.
Ignore to report user-space for known mobility headers rejected by
destination options header transformation.
Mobile IPv6 specification (RFC3775) says that mobility header
is used with destination options header carrying home address option
only for binding update message. Other type message cannot be used
and node must drop it silently (and must not send binding error) if
receving such packet.
To achieve it, (1) application should use transformation policy and
wild-card states to catch binding update message prior other packets
(2) kernel doesn't report the reject to user-space not to send
binding error message by application.
This patch is for (2).
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:32 -07:00
Masahide NAKAMURA
70182ed23d [IPV6] MIP6: Report to user-space when home address option is rejected.
Report to user-space when home address option is rejected.
In receiving this message user-space application will send Mobile IPv6 binding
error. It is rate-limited by kernel.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:31 -07:00
Masahide NAKAMURA
97a64b4577 [XFRM]: Introduce XFRM_MSG_REPORT.
XFRM_MSG_REPORT is a message as notification of state protocol and
selector from kernel to user-space.

Mobile IPv6 will use it when inbound reject is occurred at route
optimization to make user-space know a binding error requirement.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:30 -07:00
Masahide NAKAMURA
df0ba92a99 [XFRM]: Trace which secpath state is reject factor.
For Mobile IPv6 usage, it is required to trace which secpath state is
reject factor in order to notify it to user space (to know the address
which cannot be used route optimized communication).

Based on MIPL2 kernel patch.

This patch was also written by: Henrik Petander <petander@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:08:29 -07:00
Masahide NAKAMURA
2ce4272a69 [IPV6] MIP6: Transformation support mobility header.
Transformation support mobility header.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:07:03 -07:00
Masahide NAKAMURA
6e8f4d48b2 [IPV6] MIP6: Add sending mobility header functions through raw socket.
Mobility header is built by user-space and sent through raw socket.
Kernel just extracts its type to flow.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:07:02 -07:00
Masahide NAKAMURA
7be96f7628 [IPV6] MIP6: Add receiving mobility header functions through raw socket.
Like ICMPv6, mobility header is handled through raw socket.
In inbound case, check only whether ICMPv6 error should be sent as a reply
or not by kernel.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>
This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:07:01 -07:00
Masahide NAKAMURA
e23c7194a8 [XFRM] STATE: Add Mobile IPv6 route optimization protocols to netlink interface.
Add Mobile IPv6 route optimization protocols to netlink interface.
Route optimization states carry care-of address.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:59 -07:00
Noriaki TAKAMIYA
3d126890dd [IPV6] MIP6: Add destination options header transformation.
Add destination options header transformation for Mobile IPv6.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:58 -07:00
Noriaki TAKAMIYA
2c8d7ca0f7 [IPV6] MIP6: Add routing header type 2 transformation.
Add routing header type 2 transformation for Mobile IPv6.
Based on MIPL2 kernel patch.

Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:57 -07:00
Masahide NAKAMURA
27637df92e [IPV6] IPSEC: Support sending with Mobile IPv6 extension headers.
Mobile IPv6 defines home address option as an option of destination
options header. It is placed before fragment header then
ip6_find_1stfragopt() is fixed to know about it.

Home address option also carries final source address of the flow,
then outbound AH calculation should take care of it like routing
header case.  Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:56 -07:00
Masahide NAKAMURA
793832361f [IPV6] MIP6: Revert address to send ICMPv6 error.
IPv6 source address is replaced in receiving packet
with home address option carried by destination options header.
To send ICMPv6 error back, original address which is received one on wire
should be used. This function checks such header is included
and reverts them.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:55 -07:00
Masahide NAKAMURA
a831f5bbc8 [IPV6] MIP6: Add inbound interface of home address option.
Add inbound function of home address option by registering it to TLV
table for destination options header.

Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:53 -07:00
Masahide NAKAMURA
a80ff03e05 [IPV6]: Allow to replace skbuff by TLV parser.
In receiving Mobile IPv6 home address option which is a TLV carried by
destination options header, kernel will try to mangle source adderss
of packet. Think of cloned skbuff it is required to replace it by the
parser just like routing header case.

This is a framework to achieve that to allow TLV parser to replace
inbound skbuff pointer.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:51 -07:00
Masahide NAKAMURA
c61a404325 [IPV6]: Find option offset by type.
This is a helper to search option offset from extension header which
can carry TLV option like destination options header.

Mobile IPv6 home address option will use it.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:50 -07:00
Masahide NAKAMURA
280a9d3400 [IPV6] MIP6: Add socket option and ancillary data interface of routing header type 2.
Add socket option and ancillary data interface of routing header type
2.  Mobile IPv6 application will use this to send binding
acknowledgement with the header without relation of confirmed route
optimization (binding).

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:49 -07:00
Masahide NAKAMURA
65d4ed9221 [IPV6] MIP6: Add inbound interface of routing header type 2.
Add inbound interface of routing header type 2 for Mobile IPv6.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:48 -07:00
Masahide NAKAMURA
ee53826801 [IPV6]: Add Kconfig to enable Mobile IPv6.
Add Kconfig to enable Mobile IPv6.
Based on MIPL2 kernel patch.

Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-09-22 15:06:46 -07:00
Masahide NAKAMURA
654b32c6aa [XFRM]: Fix message about transformation user interface.
Transformation user interface is not only for IPsec.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:45 -07:00
Masahide NAKAMURA
e53820de0f [XFRM] IPV6: Restrict bundle reusing
For outbound transformation, bundle is checked whether it is
suitable for current flow to be reused or not. In such IPv6 case
as below, transformation may apply incorrect bundle for the flow instead
of creating another bundle:

- The policy selector has destination prefix length < 128
  (Two or more addresses can be matched it)
- Its bundle holds dst entry of default route whose prefix length < 128
  (Previous traffic was used such route as next hop)
- The policy and the bundle were used a transport mode state and
  this time flow address is not matched the bundled state.

This issue is found by Mobile IPv6 usage to protect mobility signaling
by IPsec, but it is not a Mobile IPv6 specific.
This patch adds strict check to xfrm_bundle_ok() for each
state mode and address when prefix length is less than 128.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:44 -07:00
Masahide NAKAMURA
9afaca0579 [XFRM] IPV6: Update outbound state timestamp for each sending.
With this patch transformation state is updated last used time
for each sending. Xtime is used for it like other state lifetime
expiration.
Mobile IPv6 enabled nodes will want to know traffic status of each
binding (e.g. judgement to request binding refresh by correspondent node,
or to keep home/care-of nonce alive by mobile node).
The last used timestamp is an important hint about it.
Based on MIPL2 kernel patch.

This patch was also written by: Henrik Petander <petander@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:43 -07:00
Noriaki TAKAMIYA
060f02a3bd [XFRM] STATE: Introduce care-of address.
Care-of address is carried by state as a transformation option like
IPsec encryption/authentication algorithm.

Based on MIPL2 kernel patch.

Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-09-22 15:06:42 -07:00
Masahide NAKAMURA
1b5c229987 [XFRM] STATE: Support non-fragment outbound transformation headers.
For originated outbound IPv6 packets which will fragment, ip6_append_data()
should know length of extension headers before sending them and
the length is carried by dst_entry.
IPv6 IPsec headers fragment then transformation was
designed to place all headers after fragment header.
OTOH Mobile IPv6 extension headers do not fragment then
it is a good idea to make dst_entry have non-fragment length to tell it
to ip6_append_data().

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:41 -07:00
Masahide NAKAMURA
99505a8436 [XFRM] STATE: Add a hook to obtain local/remote outbound address.
Outbound transformation replaces both source and destination address with
state's end-point addresses at the same time when IPsec tunnel mode.
It is also required to change them for Mobile IPv6 route optimization, but we
should care about the following differences:
 - changing result is not end-point but care-of address
 - either source or destination is replaced for each state
This hook is a common platform to change outbound address.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:41 -07:00
Masahide NAKAMURA
9e51fd371a [XFRM]: Rename secpath_has_tunnel to secpath_has_nontransport.
On current kernel inbound transformation state is allowed transport and
disallowed tunnel mode when mismatch is occurred between tempates and states.
As the result of adding two more modes by Mobile IPv6, this function name
is misleading. Inbound transformation can allow only transport mode
when mismatch is occurred between template and secpath.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:40 -07:00
Masahide NAKAMURA
fbd9a5b47e [XFRM] STATE: Common receive function for route optimization extension headers.
XFRM_STATE_WILDRECV flag is introduced; the last resort state is set
it and receives packet which is not route optimized but uses such
extension headers i.e. Mobile IPv6 signaling (binding update and
acknowledgement).  A node enabled Mobile IPv6 adds the state.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:39 -07:00
Masahide NAKAMURA
f3bd484021 [XFRM]: Restrict authentication algorithm only when inbound transformation protocol is IPsec.
For Mobile IPv6 usage, routing header or destination options header is
used and it doesn't require this comparison. It is checked only for
IPsec template.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:38 -07:00
Masahide NAKAMURA
1d71627d69 [XFRM] STATE: Introduce route optimization mode.
Route optimization is used with routing header and destination options
header for Mobile IPv6.

At outbound it makes header space like IPsec transport. At inbound it
does nothing because exhdrs.c functions have responsibility to update
skbuff information for these headers.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:37 -07:00
Masahide NAKAMURA
aee5adb430 [XFRM] STATE: Add a hook to find offset to be inserted header in outbound.
On current kernel, ip6_find_1stfragopt() is used by IPv6 IPsec to find
offset to be inserted header in outbound for transport mode. (BTW, no
usage may be needed for IPv4 case.)  Mobile IPv6 requires another
logic for routing header and destination options header
respectively. This patch is common platform for the offset and adopts
it to IPsec.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:36 -07:00
Masahide NAKAMURA
eb2971b68a [XFRM] STATE: Search by address using source address list.
This is a support to search transformation states by its addresses
by using source address list for Mobile IPv6 usage.
To use it from user-space, it is also added a message type for
source address as a xfrm state option.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:35 -07:00
Masahide NAKAMURA
6c44e6b7ab [XFRM] STATE: Add source address list.
Support source address based searching.
Mobile IPv6 will use it.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:34 -07:00
Masahide NAKAMURA
dc00a52560 [XFRM] STATE: Allow non IPsec protocol.
It will be added two more transformation protocols (routing header
and destination options header) for Mobile IPv6.
xfrm_id_proto_match() can be handle zero as all, IPSEC_PROTO_ANY as
all IPsec and otherwise as exact one.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:32 -07:00
Masahide NAKAMURA
5794708f11 [XFRM]: Introduce a helper to compare id protocol.
Put the helper to header for future use.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:06:24 -07:00
Masahide NAKAMURA
7e49e6de30 [XFRM]: Add XFRM_MODE_xxx for future use.
Transformation mode is used as either IPsec transport or tunnel.
It is required to add two more items, route optimization and inbound trigger
for Mobile IPv6.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 15:05:15 -07:00
YOSHIFUJI Hideaki
77d16f450a [IPV6] ROUTE: Unify RT6_F_xxx and RT6_SELECT_F_xxx flags
Unify RT6_F_xxx and RT6_SELECT_F_xxx flags into
RT6_LOOKUP_F_xxx flags, and put them into ip6_route.h

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:56 -07:00
YOSHIFUJI Hideaki
4e96c2b418 [IPV6] KCONFIG: Add subtrees support.
This is for developers only.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:55 -07:00
YOSHIFUJI Hideaki
c0bece9f2a [IPV6] ROUTE: Add credits about subtree fixes.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:55 -07:00
YOSHIFUJI Hideaki
cb15d9c224 [IPV6] NDISC: Search subtrees when backtracking on receipt of redirects.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:54 -07:00
YOSHIFUJI Hideaki
150730d5a5 [IPV6] ROUTE: Purge clones on other trees when deleting a route.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:53 -07:00
YOSHIFUJI Hideaki
982f56f3a9 [IPV6] ROUTE: Search subtree when backtracking.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:52 -07:00
YOSHIFUJI Hideaki
7fc33165a7 [IPV6] ROUTE: Put SUBTREE() as FIB6_SUBTREE() into ip6_fib.h for future use.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:51 -07:00
YOSHIFUJI Hideaki
fefc2a6c20 [IPV6] ROUTE: Allow searching subtree only.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:50 -07:00
YOSHIFUJI Hideaki
825e288ef4 [IPV6] ROUTE: Make sure we do not exceed args in fib6_lookup_1().
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:49 -07:00
YOSHIFUJI Hideaki
3fc5e0440b [IPV6] ROUTE: Fix looking up a route on subtree.
Even on RTN_ROOT node, we need to process its subtree first.
Fix NULL pointer dereference in fib6_locate().

Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:48 -07:00
YOSHIFUJI Hideaki
2285adc1e6 [IPV6] ROUTE: Prune clones from main tree as well.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:47 -07:00
YOSHIFUJI Hideaki
66729e18df [IPV6] ROUTE: Make sure we have fn->leaf when adding a node on subtree.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:46 -07:00
YOSHIFUJI Hideaki
8e1ef0a95b [IPV6]: Cache source address as well in ipv6_pinfo{}.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:45 -07:00
YOSHIFUJI Hideaki
cf6b198259 [IPV6] ROUTE: Introduce a helper to check route validity.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:44 -07:00
YOSHIFUJI Hideaki
af18476584 [IPV6] NDISC: Initialize fl with outbound interface to lookup rules properly.
Based on MIPL2 kernel patch.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:43 -07:00
YOSHIFUJI Hideaki
a6279458c5 [IPV6] NDISC: Search over all possible rules on receipt of redirect.
Split up function for finding routes for redirects.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:42 -07:00
YOSHIFUJI Hideaki
5e032e32ec [IPV6] NDISC: Take source address into account for redirects.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:41 -07:00
David S. Miller
a57d27fc71 [RTNETLINK]: Don't return error on no-metrics.
Instead just cancel the nested attribute and return 0.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:40 -07:00
Thomas Graf
2809486424 [NETFILTER]: x_tables: Fix typos after conversion to use mass registation helper
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:40 -07:00
Vladislav Yasevich
3fd091e73b [SCTP]: Remove multiple levels of msecs to jiffies conversions.
The SCTP sysctl entries are displayed in milliseconds, but stored
internally in jiffies. This results in multiple levels of msecs to
jiffies conversion and as a result produces a truncation error. This
patch makes things consistent in that we store and display defaults
in milliseconds and only convert once for use by association.
This patch also adds some sane min/max values so that we don't go off
the deep end.

Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:39 -07:00
Patrick McHardy
ce556b3a59 [NETFILTER]: xt_tcpmss: minor cleanups
- remove unused define
- remove useless wrapper function
- use new line for expression after condition

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:38 -07:00
Patrick McHardy
5fa2a7601f [NETFILTER]: ip6_tables: consolidate dst and hbh matches
The matches are identical besides one looking for NEXTHDR_HOP, the other
for NEXTHDR_DEST. Remove ip6t_dst.c and handle both in ip6t_hbh.c.

Signed-off-by: Patrick McHardy <kaber@trash,net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:37 -07:00
Patrick McHardy
efa741656e [NETFILTER]: x_tables: remove unused size argument to check/destroy functions
The size is verified by x_tables and isn't needed by the modules anymore.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:34 -07:00
Patrick McHardy
fe1cb10873 [NETFILTER]: x_tables: remove unused argument to target functions
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:33 -07:00
Patrick McHardy
4470bbc749 [NETFILTER]: x_tables: make use of mass registation helpers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:32 -07:00
Patrick McHardy
52d9c42ef2 [NETFILTER]: x_tables: add helpers for mass match/target registration
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:31 -07:00
Patrick McHardy
90528e6fe9 [NETFILTER]: xt_CONNMARK: use tabs for indentation
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:30 -07:00
Patrick McHardy
da878c8e5a [NETFILTER]: replace open coded checksum updates
Replace open coded checksum update by nf_csum_update calls and clean up
the surrounding code a bit.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:29 -07:00
Patrick McHardy
1158ba27be [NETFILTER]: nfnetlink_queue: fix typo in error message
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:28 -07:00
Pablo Neira Ayuso
1a31526bae [NETFILTER]: ctnetlink: remove impossible events tests for updates
IPCT_HELPER and IPCT_NATINFO bits are never set on updates.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:27 -07:00
Pablo Neira Ayuso
b3a27bfba5 [NETFILTER]: ctnetlink: check for listeners before sending expectation events
This patch uses nfnetlink_has_listeners to check for listeners in
userspace.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:26 -07:00
Pablo Neira Ayuso
b9a37e0c81 [NETFILTER]: ctnetlink: dump connection mark
ctnetlink dumps the mark iif the event mark happened

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:25 -07:00
Pablo Neira Ayuso
2521c12cf1 [NETFILTER]: conntrack: introduce connection mark event
This patch introduces the mark event. ctnetlink can use this to know if
the mark needs to be dumped.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:24 -07:00
Daniel De Graaf
b93ff78317 [NETFILTER]: ipt_recent: add module parameter for changing ownership of /proc/net/ipt_recent/*
Signed-off-by: Daniel De Graaf <danield@iastate.edu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:23 -07:00
Yasuyuki Kozakai
a468701db5 [NETFILTER]: x_tables: replace IPv4 DSCP target by address family independent version
This replaces IPv4 DSCP target by address family independent version.
This also
	- utilizes dsfield.h to get/mangle DS field in IPv4/IPv6 header
	- fixes Kconfig help text.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:22 -07:00
Yasuyuki Kozakai
9ba1627617 [NETFILTER]: x_tables: replace IPv4 dscp match by address family independent version
This replaces IPv4 dscp match by address family independent version.
This also
	- utilizes dsfield.h to get the DS field in IPv4/IPv6 header, and
	- checks for the DSCP value from user space.
	- fixes Kconfig help text.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:21 -07:00
Sridhar Samudrala
8abfedd889 [SCTP]: Use the flags value that is passed as an arg to sctp_accept.
No need to do multiple dereferences - sk->sk_socket->file->f_flags

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:19 -07:00
Vladislav Yasevich
eb5fa39f5e [SCTP]: Fix IPv6 address flag setting when doing peel-off/accept.
During accept/peeloff we try to copy the list of bound addresses from
the original endpoint to the new one. However, we forgot to set the flag
to say that IPv6 is allowed on the new endpoint.

Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:18 -07:00
Vladislav Yasevich
df7deeb540 [SCTP]: Cleanup nomem handling in the state functions.
This patch cleans up the "nomem" conditions that may occur during the
processing by the state machine functions. In most cases we delay adding
side-effect commands until all memory allocations are done.

Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:17 -07:00
Sridhar Samudrala
ac0b046272 [SCTP]: Extend /proc/net/sctp/snmp to provide more statistics.
This patch adds more statistics info under /proc/net/sctp/snmp
that should be useful for debugging. The additional events that
are counted now include timer expirations, retransmits, packet
and data chunk discards.

The Data chunk discards include all the cases where a data chunk
is discarded including high tsn, bad stream, dup tsn and the most
useful one(out of receive buffer/rwnd).

Also moved the SCTP MIB data structures from the generic include
directories to include/sctp/sctp.h.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:16 -07:00
David S. Miller
72d3b2c970 [IPV6]: Fixup ip6_del_rt() call for new args.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:15 -07:00
Thomas Graf
ab364a6f96 [IPv6] route: Convert GETROUTE to use new netlink api
Fixes various unvalidated netlink attributes causing memory
corruptions when left empty by userspace applications.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:14 -07:00
Thomas Graf
2d7202bfdd [IPv6] route: Convert FIB6 dumping to use new netlink api
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:13 -07:00
Thomas Graf
86872cb579 [IPv6] route: FIB6 configuration using struct fib6_config
Replaces the struct in6_rtmsg based interface orignating from
the ioctl interface with a struct fib6_config based on. Allows
changing the interface without breaking the ioctl interface
and avoids passing on tons of parameters.

The recently introduced struct nl_info is used to pass on
netlink authorship information for notifications.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:12 -07:00
Thomas Graf
40e22e8f3d [IPv6] route: Simplify ip6_ins_rt()
Provide a simple ip6_ins_rt() for the majority of users and
an alternative for the exception via netlink. Avoids code
obfuscation.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:11 -07:00
Thomas Graf
e0a1ad73d3 [IPv6] route: Simplify ip6_del_rt()
Provide a simple ip6_del_rt() for the majority of users and
an alternative for the exception via netlink. Avoids code
obfuscation.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:11 -07:00
David S. Miller
e9ce1cd3cf [PKT_SCHED]: Kill pkt_act.h inlining.
This was simply making templates of functions and mostly causing a lot
of code duplication in the classifier action modules.

We solve this more cleanly by having a common "struct tcf_common" that
hash worker functions contained once in act_api.c can work with.

Callers work with real action objects that have the common struct
plus their module specific struct members.  You go from a common
object to the higher level one using a "to_foo()" macro which makes
use of container_of() to do the dirty work.

This also kills off act_generic.h which was only used by act_simple.c
and keeping it around was more work than the it's value.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:10 -07:00
Stephen Hemminger
2e4ca75b31 [ETH]: indentation and cleanup
Run ethernet support through Lindent and fix up.
Applies after docbook comments patch

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:09 -07:00
Stephen Hemminger
d3e01f7186 [ETH]: docbook comments
Add docbook style comments to ethernet support.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:08 -07:00
Stephen Hemminger
e92b43a345 [NET] neighbour: reduce exports
There are several symbols only used by rtnetlink and since it can
not be a module, there is no reason to export them.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:07 -07:00
Thomas Graf
d889ce3b29 [IPv4]: Convert route get to new netlink api
Fixes various unvalidated netlink attributes causing memory
corruptions when left empty by userspace applications.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:06 -07:00
Thomas Graf
be403ea185 [IPv4]: Convert FIB dumping to use new netlink api
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:05 -07:00
Thomas Graf
4e902c5741 [IPv4]: FIB configuration using struct fib_config
Introduces struct fib_config replacing the ugly struct kern_rta
prone to ordering issues. Avoids creating faked netlink messages
for auto generated routes or requests via ioctl.

A new interface net/nexthop.h is added to help navigate through
nexthop configuration arrays.

A new struct nl_info will be used to carry the necessary netlink
information to be used for notifications later on.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:04 -07:00
Brian Haley
ab32ea5d8a [NET/IPV4/IPV6]: Change some sysctl variables to __read_mostly
Change net/core, ipv4 and ipv6 sysctl variables to __read_mostly.

Couldn't actually measure any performance increase while testing (.3%
I consider noise), but seems like the right thing to do.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:03 -07:00
Thomas Graf
56fc85ac96 [RTNETLINK]: Unexport rtnl socket
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:02 -07:00
Thomas Graf
0ec6d3f467 [NET] link: Convert notifications to use rtnl_notify()
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:01 -07:00
Thomas Graf
bd5785ba3a [WIRELESS]: Convert notifications to use rtnl_notify()
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:55:00 -07:00
Thomas Graf
280a306c53 [BRIDGE]: Convert notifications to use rtnl_notify()
Fixes a wrong use of current->pid as netlink pid.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:59 -07:00
Thomas Graf
8c384bfa36 [IPv6] prefix: Convert prefix notifications to use rtnl_notify()
Fixes a wrong use of current->pid as netlink pid.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:58 -07:00
Thomas Graf
8d7a76c9b1 [IPv6] link: Convert link notifications to use rtnl_notify()
Fixes a wrong use of current->pid as netlink pid.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:57 -07:00
Thomas Graf
21713ebc4f [IPv6] route: Convert route notifications to use rtnl_notify()
Fixes a wrong use of current->pid as netlink pid.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:56 -07:00
Thomas Graf
5d62026643 [IPv6] address: Convert address notification to use rtnl_notify()
Fixes a wrong use of current->pid as netlink pid.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:55 -07:00
Thomas Graf
f21c7bc5f6 [IPv4] route: Convert route notifications to use rtnl_notify()
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:54 -07:00
Thomas Graf
d6062cbbd1 [IPv4] address: Convert address notification to use rtnl_notify()
Adds support for NLM_F_ECHO allowing applications to easly
see which address have been deleted, added, or promoted.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:53 -07:00
Thomas Graf
dc738dd83e [DECNET]: Convert DECnet notifications to use rtnl_notify()
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:52 -07:00
Thomas Graf
b867331180 [NEIGH]: Convert neighbour notifications ot use rtnl_notify()
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:51 -07:00
Thomas Graf
c17084d21c [NET] fib_rules: Convert fib rule notification to use rtnl_notify()
Adds support for NLM_F_ECHO to simplify the process of identifying
inserted rules with an auto generated priority.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:51 -07:00
Thomas Graf
97676b6b55 [RTNETLINK]: Add rtnetlink notification interface
Adds rtnl_notify() to send rtnetlink notification messages and
rtnl_set_sk_err() to report notification errors as socket
errors in order to indicate the need of a resync due to loss
of events.

nlmsg_report() is added to properly document the meaning of
NLM_F_ECHO.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:50 -07:00
Thomas Graf
d387f6ad10 [NETLINK]: Add notification message sending interface
Adds nlmsg_notify() implementing proper notification logic. The
message is multicasted to all listeners in the group. The
applications the requests orignates from can request a unicast
back report in which case said socket will be excluded from the
multicast to avoid duplicated notifications.

nlmsg_multicast() is extended to take allocation flags to
allow notification in atomic contexts.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:49 -07:00
Thomas Graf
2942e90050 [RTNETLINK]: Use rtnl_unicast() for rtnetlink unicasts
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:48 -07:00
David S. Miller
f8d8fda54a [IPV6] udp: Fix type in previous change.
UDPv6 stats are UDP6_foo not UDP_foo.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:47 -07:00
Alan Cox
97a4f3e711 [NETFILTER]: Make unused signal code go away so nobody copies its brokenness
This code is wrong on so many levels, please lose it so it isn't
replicated anywhere else.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:43 -07:00
David S. Miller
a18135eb93 [IPV6]: Add UDP_MIB_{SND,RCV}BUFERRORS handling.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:42 -07:00
Martin Bligh
81aa646cc4 [IPV4]: add the UdpSndbufErrors and UdpRcvbufErrors MIBs
Signed-off-by: Martin Bligh <mbligh@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-09-22 14:54:41 -07:00
Adrian Bunk
2aa7f36cdb [DECNET]: cleanups
- make the following needlessly global functions static:
  - dn_fib.c: dn_fib_sync_down()
  - dn_fib.c: dn_fib_sync_up()
  - dn_rules.c: dn_fib_rule_action()
- remove the following unneeded prototype:
  - dn_fib.c: dn_cache_dump()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:40 -07:00
Adrian Bunk
90d41122f7 [IPV6] ip6_fib.c: make code static
Make the following needlessly global code static:
- fib6_walker_lock
- struct fib6_walker_list
- fib6_walk_continue()
- fib6_walk()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:38 -07:00
Steven Whitehouse
d1aa62f15b [DECNET] Fix to decnet rules compare function
Here is a fix to the DECnet rules compare function where we used 32bit
values rather than 16bit values. Spotted by Patrick McHardy.

Signed-off-by: Steven Whitehouse <steve@chygwyn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:37 -07:00
Steven Whitehouse
d880309ae1 [DECNET] Fix to multiple tables routing
Here is a fix to Patrick McHardy's increase number of routing tables
patch for DECnet. I did just test this and it appears to be working
fine with this patch.

Signed-off-by: Steven Whitehouse <steve@chygwyn.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:36 -07:00
Stephen Hemminger
b6fe17d6cc [NET] netdev: Check name length
Some improvements to robust name interface.  These API's are safe
now by convention, but it is worth providing some safety checks
against future bugs.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:35 -07:00
Stephen Hemminger
3696f625e2 [HTB]: rbtree cleanup
Add code to initialize rb tree nodes, and check for double deletion.
This is not a real fix, but I can make it trap sometimes and may
be a bandaid for: http://bugzilla.kernel.org/show_bug.cgi?id=6681

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:34 -07:00
Stephen Hemminger
0cef296da9 [HTB]: Use hlist for hash lists.
Use hlist instead of list for the hash list. This saves
space, and we can check for double delete better.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:34 -07:00
Stephen Hemminger
87990467d3 [HTB]: Lindent
Code was a mess in terms of indentation.  Run through Lindent
script, and cleanup the damage. Also, don't use, vim magic
comment, and substitute inline for __inline__.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:33 -07:00
Stephen Hemminger
18a63e868b [HTB]: HTB_HYSTERESIS cleanup
Change the conditional compilation around HTB_HYSTERSIS
since code was splitting mid expression.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:32 -07:00
Stephen Hemminger
9ac961ee05 [HTB]: Remove lock macro.
Get rid of the macro's being used to obscure the locking.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:31 -07:00
Stephen Hemminger
3bf72957d2 [HTB]: Remove broken debug code.
The HTB network scheduler had debug code that wouldn't compile
and confused and obfuscated the code, remove it.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:30 -07:00
Patrick McHardy
abcab26830 [DECNET]: Increase number of possible routing tables to 2^32
Increase the number of possible routing tables to 2^32 by replacing the
fixed sized array of pointers by a hash table and replacing iterations
over all possible table IDs by hash table walking.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:28 -07:00
Patrick McHardy
1b43af5480 [IPV6]: Increase number of possible routing tables to 2^32
Increase number of possible routing tables to 2^32 by replacing iterations
over all possible table IDs by hash table walking.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:27 -07:00
Patrick McHardy
1af5a8c4a1 [IPV4]: Increase number of possible routing tables to 2^32
Increase the number of possible routing tables to 2^32 by replacing the
fixed sized array of pointers by a hash table and replacing iterations
over all possible table IDs by hash table walking.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:26 -07:00
Patrick McHardy
9e762a4a89 [NET]: Introduce RTA_TABLE/FRA_TABLE attributes
Introduce RTA_TABLE route attribute and FRA_TABLE routing rule attribute
to hold 32 bit routing table IDs. Usespace compatibility is provided by
continuing to accept and send the rtm_table field, but because of its
limited size it can only carry the low 8 bits of the table ID. This
implies that if larger IDs are used, _all_ userspace programs using them
need to use RTA_TABLE.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:25 -07:00
Patrick McHardy
2dfe55b47e [NET]: Use u32 for routing table IDs
Use u32 for routing table IDs in net/ipv4 and net/decnet in preparation of
support for a larger number of routing tables. net/ipv6 already uses u32
everywhere and needs no further changes. No functional changes are made by
this patch.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:24 -07:00
David S. Miller
1e38bb3a38 [NET]: Kill double initialization in sock_alloc_inode.
No need to set ei->socket.flags to zero twice.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:22 -07:00
Dave Jones
bf0d52492d [NET]: Remove unnecessary config.h includes from net/
config.h is automatically included by kbuild these days.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:21 -07:00
Stephen Hemminger
f0fd27d42e [NET]: sock_register interface changes
The sock_register() doesn't change the family, so the protocols can
define it read-only.  No caller ever checks return value from
sock_unregister()

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:20 -07:00
Stephen Hemminger
55737fda0b [NET]: socket family using RCU
Replace the gross custom locking done in socket code for net_family[]
with simple RCU usage. Some reordering necessary to avoid sleep issues
with sock_alloc.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:19 -07:00
Stephen Hemminger
89bddce58e [NET] socket: code style cleanup
Make socket.c conform to current style:
	* run through Lindent
	* get rid of unneeded casts
	* split assignment and comparsion where possible

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:17 -07:00
Sridhar Samudrala
53fad3cbff [SUNRPC]: Remove the unnecessary check for highmem in xs_sendpages().
Just call kernel_sendpage() directly.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:16 -07:00
Steven Whitehouse
a22ec367b0 [DECNET]: Convert rwlock to spinlock
As per Stephen Hemminger's recent patch to ipv4/fib_semantics.c this
is the same change but for DECnet.

Signed-off-by: Steven Whitehouse <steve@chygwyn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:15 -07:00
Steven Whitehouse
a8731cbf61 [DECNET]: Covert rules to use generic code
This patch converts the DECnet rules code to use the generic
rules system created by Thomas Graf <tgraf@suug.ch>.

Signed-off-by: Steven Whitehouse <steve@chygwyn.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:15 -07:00
Herbert Xu
8f491069b4 [IPV4]: Use network-order dport for all visible inet_lookup_*
Right now most inet_lookup_* functions take a host-order hnum instead
of a network-order dport because that's how it is represented
internally.

This means that users of these functions have to be careful about
using the right byte-order.  To add more confusion, inet_lookup takes
a network-order dport unlike all other functions.

So this patch changes all visible inet_lookup functions to take a
dport and move all dport->hnum conversion inside them.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:14 -07:00
Stephen Hemminger
832b4c5e18 [IPV4] fib: convert reader/writer to spinlock
Ther is no point in using a more expensive reader/writer lock
for a low contention lock like the fib_info_lock. The only
reader case is in handling route redirects.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:13 -07:00
Ville Nuorvala
b142955324 [IPV6]: Make sure fib6_rule_lookup doesn't return NULL
The callers of fib6_rule_lookup don't expect it to return NULL,
therefore it must return ip6_null_entry whenever fib_rule_lookup fails.

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:12 -07:00
Herbert Xu
99a92ff504 [IPV4]: Uninline inet_lookup_listener
By modern standards this function is way too big to be inlined.  It's
even bigger than __inet_lookup_listener :)

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:11 -07:00
Louis Nyffenegger
1a01912ae0 [INET]: Remove is_setbyuser patch
The value is_setbyuser from struct ip_options is never used and set
only one time (http://linux-net.osdl.org/index.php/TODO#IPV4).
This little patch removes it from the kernel source.

Signed-off-by: Louis Nyffenegger <louis.nyffenegger@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:10 -07:00
David S. Miller
0298f36a57 [IPV4]: Kill fib4_rules_clean().
As noted by Adrian Bunk this function is totally unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:09 -07:00
David S. Miller
8423a9aadf [IPV6]: Protect RTM_GETRULE table entry with IPV6_MULTIPLE_TABLES ifdef
This is how IPv4 handles this case too.

Based upon a patch from Andrew Morton.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:08 -07:00
Adrian Bunk
8ce11e6a9f [NET]: Make code static.
This patch makes needlessly global code static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:07 -07:00
Sridhar Samudrala
e6242e928e [SUNRPC]: Update to use in-kernel sockets API.
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:06 -07:00
Sridhar Samudrala
ac5a488ef2 [NET]: Round out in-kernel sockets API
This patch implements wrapper functions that provide a convenient way
to access the sockets API for in-kernel users like sunrpc, cifs &
ocfs2 etc and any future users.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:05 -07:00
Thomas Graf
b63bbc5006 [NEIGH]: Move netlink neighbour table bits to linux/neighbour.h
rtnetlink_rcv_msg() is not longer required to parse attributes
for the neighbour tables layer, remove dependency on obsolete and
buggy rta_buf.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:04 -07:00
Thomas Graf
ca860fb39b [NEIGH]: Convert neighbour table dumping to new netlink api
Also fixes skipping of already dumped neighbours.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:03 -07:00
Thomas Graf
6b3f8674bc [NEIGH]: Convert neighbour table modification to new netlink api
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:02 -07:00
Thomas Graf
9067c722cf [NEIGH]: Move netlink neighbour bits to linux/neighbour.h
Moves netlink neighbour bits to linux/neighbour.h. Also
moves bits to be exported to userspace from net/neighbour.h
to linux/neighbour.h and removes __KERNEL__ guards, userspace
is not supposed to be using it.

rtnetlink_rcv_msg() is not longer required to parse attributes
for the neighbour layer, remove dependency on obsolete and
buggy rta_buf.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:01 -07:00
Thomas Graf
8b8aec5083 [NEIGH]: Convert neighbour dumping to new netlink api
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:54:00 -07:00
Thomas Graf
5208debd0f [NEIGH]: Convert neighbour addition to new netlink api
Fixes:
    Return EAFNOSUPPORT if no table matches the specified
    address family.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:59 -07:00
Thomas Graf
a14a49d2b7 [NEIGH]: Convert neighbour deletion to new netlink api
Fixes:
  Return ENOENT if the neighbour is not found (was EINVAL)
  Return EAFNOSUPPORT if no table matches the specified
  address family.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:58 -07:00
Patrick McHardy
3226f68817 [IPV6]: Fix policy routing lookup
When the lookup in a table returns ip6_null_entry the policy routing lookup
returns it instead of continuing in the next table, which effectively means
it only searches the local table.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:58 -07:00
Patrick McHardy
6c813a7297 [IPV6]: Fix crash in ip6_del_rt
ip6_null_entry doesn't have rt6i_table set, when trying to delete it the
kernel crashes dereferencing table->tb6_lock.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:57 -07:00
Patrick McHardy
d7aba67f81 [IPV6]: Fix thinko in rt6_fill_node
This looks like a mistake, the table ID is overwritten again.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:56 -07:00
Patrick McHardy
394f545db6 [NETFILTER]: nf_queue: handle GSO packets
Handle GSO packets in nf_queue by segmenting them before queueing to
avoid breaking GSO in case they get mangled.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:55 -07:00
Patrick McHardy
4cf411de49 [NETFILTER]: Get rid of HW checksum invalidation
Update hardware checksums incrementally to avoid breaking GSO.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:54 -07:00
Patrick McHardy
84fa7933a3 [NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE
Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose
checksum still needs to be completed) and CHECKSUM_COMPLETE (for
incoming packets, device supplied full checksum).

Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:53 -07:00
Patrick McHardy
8584d6df39 [NETFILTER]: netbios conntrack: fix compile
Fix compile breakage caused by move of IFA_F_SECONDARY to new header
file.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:51 -07:00
Thomas Graf
b60c5115f4 [NET]: Convert link dumping to new netlink api
Transforms netlink code to dump link tables to use the new
netlink api. Makes rtnl_getlink() available regardless of the
availability of the wireless extensions.

Adding copy_rtnl_link_stats() avoids the structural dependency
of struct rtnl_link_stats on struct net_device_stats and thus
avoids troubles later on.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:49 -07:00
Thomas Graf
da5e0494c5 [NET]: Convert link modification to new netlink api
Transforms do_setlink() into rtnl_setlink() using the new
netlink api. A warning message printed to the console is
added in the event that a change request fails while part
of the change request has been comitted already. The ioctl()
based nature of net devices makes it almost impossible to
move on to atomic netlink operations without obsoleting
some of the functionality.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:48 -07:00
Thomas Graf
1823730fbc [IPv4]: Move interface address bits to linux/if_addr.h
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:47 -07:00
Thomas Graf
47f68512d2 [IPV4]: Convert address dumping to new netlink api
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:46 -07:00
Thomas Graf
dfdd5fd4e9 [IPV4]: Convert address deletion to new netlink api
Fixes various unvalidated netlink attributes causing
memory corruptions when left empty by userspace.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:45 -07:00
Thomas Graf
5c7539781d [IPV4]: Convert address addition to new netlink api
Adds rtm_to_ifaddr() transforming a netlink message to a
struct in_ifaddr. Fixes various unvalidated netlink attributes
causing memory corruptions when left empty by userspace
applications.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:45 -07:00
Thomas Graf
bf8b79e444 [NETLINK]: Convert core netlink handling to new netlink api
Fixes a theoretical memory and locking leak when the size of
the netlink header would exceed the skb tailroom.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:44 -07:00
Thomas Graf
fe4944e59c [NETLINK]: Extend netlink messaging interface
Adds:
 nlmsg_get_pos()                 return current position in message
 nlmsg_trim()                    trim part of message
 nla_reserve_nohdr(skb, len)     reserve room for an attribute w/o hdr
 nla_put_nohdr(skb, len, data)   add attribute w/o hdr
 nla_find_nested()               find attribute in nested attributes

Fixes nlmsg_new() to take allocation flags and consider size.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:43 -07:00
Thomas Graf
e1ef4bf23b [IPV4]: Use Protocol Independant Policy Routing Rules Framework
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:42 -07:00
Thomas Graf
101367c2f8 [IPV6]: Policy Routing Rules
Adds support for policy routing rules including a new
local table for routes with a local destination.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:41 -07:00
Thomas Graf
14c0b97ddf [NET]: Protocol Independant Policy Routing Rules Framework
Derived from net/ipv/fib_rules.c

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:40 -07:00
Thomas Graf
c71099acce [IPV6]: Multiple Routing Tables
Adds the framework to support multiple IPv6 routing tables.
Currently all automatically generated routes are put into the
same table. This could be changed at a later point after
considering the produced locking overhead.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:39 -07:00
Thomas Graf
5d0bbeeb14 [IPV6]: Remove ndiscs rt6_lock dependency
(Ab)using rt6_lock wouldn't work anymore if rt6_lock is
converted into a per table lock.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:38 -07:00
Paul Moore
8161327311 [NetLabel]: tie NetLabel into the Kconfig system
Modify the net/Kconfig file to enable selecting the NetLabel Kconfig
options.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:37 -07:00
Venkat Yekkirala
7420ed23a4 [NetLabel]: SELinux support
Add NetLabel support to the SELinux LSM and modify the
socket_post_create() LSM hook to return an error code.  The most
significant part of this patch is the addition of NetLabel hooks into
the following SELinux LSM hooks:

 * selinux_file_permission()
 * selinux_socket_sendmsg()
 * selinux_socket_post_create()
 * selinux_socket_sock_rcv_skb()
 * selinux_socket_getpeersec_stream()
 * selinux_socket_getpeersec_dgram()
 * selinux_sock_graft()
 * selinux_inet_conn_request()

The basic reasoning behind this patch is that outgoing packets are
"NetLabel'd" by labeling their socket and the NetLabel security
attributes are checked via the additional hook in
selinux_socket_sock_rcv_skb().  NetLabel itself is only a labeling
mechanism, similar to filesystem extended attributes, it is up to the
SELinux enforcement mechanism to perform the actual access checks.

In addition to the changes outlined above this patch also includes
some changes to the extended bitmap (ebitmap) and multi-level security
(mls) code to import and export SELinux TE/MLS attributes into and out
of NetLabel.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:36 -07:00
Paul Moore
96cb8e3313 [NetLabel]: CIPSOv4 and Unlabeled packet integration
Add CIPSO/IPv4 and unlabeled packet management to the NetLabel
subsystem.  The CIPSO/IPv4 changes allow the configuration of
CIPSO/IPv4 within the overall NetLabel framework.  The unlabeled
packet changes allows NetLabel to pass unlabeled packets without
error.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:35 -07:00
Paul Moore
d15c345fe3 [NetLabel]: core NetLabel subsystem
Add a new kernel subsystem, NetLabel, to provide explicit packet
labeling services (CIPSO, RIPSO, etc.) to LSM developers.  NetLabel is
designed to work in conjunction with a LSM to intercept and decode
security labels on incoming network packets as well as ensure that
outgoing network packets are labeled according to the security
mechanism employed by the LSM.  The NetLabel subsystem is configured
through a Generic NETLINK interface described in the header files
included in this patch.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:34 -07:00
Paul Moore
446fda4f26 [NetLabel]: CIPSOv4 engine
Add support for the Commercial IP Security Option (CIPSO) to the IPv4
network stack.  CIPSO has become a de-facto standard for
trusted/labeled networking amongst existing Trusted Operating Systems
such as Trusted Solaris, HP-UX CMW, etc.  This implementation is
designed to be used with the NetLabel subsystem to provide explicit
packet labeling to LSM developers.

The CIPSO/IPv4 packet labeling works by the LSM calling a NetLabel API
function which attaches a CIPSO label (IPv4 option) to a given socket;
this in turn attaches the CIPSO label to every packet leaving the
socket without any extra processing on the outbound side.  On the
inbound side the individual packet's sk_buff is examined through a
call to a NetLabel API function to determine if a CIPSO/IPv4 label is
present and if so the security attributes of the CIPSO label are
returned to the caller of the NetLabel API function.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:33 -07:00
Paul Moore
11a03f78fb [NetLabel]: core network changes
Changes to the core network stack to support the NetLabel subsystem.  This
includes changes to the IPv4 option handling to support CIPSO labels.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:32 -07:00
Venkat Yekkirala
4237c75c0a [MLSXFRM]: Auto-labeling of child sockets
This automatically labels the TCP, Unix stream, and dccp child sockets
as well as openreqs to be at the same MLS level as the peer. This will
result in the selection of appropriately labeled IPSec Security
Associations.

This also uses the sock's sid (as opposed to the isec sid) in SELinux
enforcement of secmark in rcv_skb and postroute_last hooks.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:29 -07:00
Venkat Yekkirala
cb969f072b [MLSXFRM]: Default labeling of socket specific IPSec policies
This defaults the label of socket-specific IPSec policies to be the
same as the socket they are set on.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:28 -07:00
Venkat Yekkirala
beb8d13bed [MLSXFRM]: Add flow labeling
This labels the flows that could utilize IPSec xfrms at the points the
flows are defined so that IPSec policy and SAs at the right label can
be used.

The following protos are currently not handled, but they should
continue to be able to use single-labeled IPSec like they currently
do.

ipmr
ip_gre
ipip
igmp
sit
sctp
ip6_tunnel (IPv6 over IPv6 tunnel device)
decnet

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:27 -07:00
Venkat Yekkirala
4e2ba18eae [MLSXFRM]: Add security context to acquire messages using PF_KEY
This includes the security context of a security association created
for use by IKE in the acquire messages sent to IKE daemons using
PF_KEY. This would allow the daemons to include the security context
in the negotiation, so that the resultant association is unique to
that security context.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:26 -07:00
Serge Hallyn
0d681623d3 [MLSXFRM]: Add security context to acquire messages using netlink
This includes the security context of a security association created
for use by IKE in the acquire messages sent to IKE daemons using
netlink/xfrm_user. This would allow the daemons to include the
security context in the negotiation, so that the resultant association
is unique to that security context.

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:25 -07:00
Venkat Yekkirala
e0d1caa7b0 [MLSXFRM]: Flow based matching of xfrm policy and state
This implements a seemless mechanism for xfrm policy selection and
state matching based on the flow sid. This also includes the necessary
SELinux enforcement pieces.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:24 -07:00
Venkat Yekkirala
892c141e62 [MLSXFRM]: Add security sid to sock
This adds security for IP sockets at the sock level. Security at the
sock level is needed to enforce the SELinux security policy for
security associations even when a sock is orphaned (such as in the TCP
LAST_ACK state).

This will also be used to enforce SELinux controls over data arriving
at or leaving a child socket while it's still waiting to be accepted.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22 14:53:22 -07:00