linux.git/net/dccp, branch v2.6.22-rc4

[NET]: Fix comparisons of unsigned < 0.

2007-06-04T01:08:47+00:00

Recent gcc versions emit warnings when unsigned variables are
compared < 0 or >= 0.

Signed-off-by: Bill Nottingham 
Signed-off-by: David S. Miller

[XFRM]: Allow packet drops during larval state resolution.

2007-05-25T01:17:54+00:00

The current IPSEC rule resolution behavior we have does not work for a
lot of people, even though technically it's an improvement from the
-EAGAIN buisness we had before.

Right now we'll block until the key manager resolves the route.  That
works for simple cases, but many folks would rather packets get
silently dropped until the key manager resolves the IPSEC rules.

We can't tell these folks to "set the socket non-blocking" because
they don't have control over the non-block setting of things like the
sockets used to resolve DNS deep inside of the resolver libraries in
libc.

With that in mind I coded up the patch below with some help from
Herbert Xu which provides packet-drop behavior during larval state
resolution, controllable via sysctl and off by default.

This lays the framework to either:

1) Make this default at some point or...

2) Move this logic into xfrm{4,6}_policy.c and implement the
   ARP-like resolution queue we've all been dreaming of.
   The idea would be to queue packets to the policy, then
   once the larval state is resolved by the key manager we
   re-resolve the route and push the packets out.  The
   packets would timeout if the rule didn't get resolved
   in a certain amount of time.

Signed-off-by: David S. Miller

[DCCP]: Fix build warning when debugging is disabled.

2007-05-24T23:36:55+00:00

Signed-off-by: David S. Miller

[DCCP]: Use menuconfig objects.

2007-05-24T23:36:46+00:00

Use menuconfigs instead of menus, so the whole menu can be disabled at
once instead of going through all options.

Signed-off-by: Jan Engelhardt 
Signed-off-by: Andrew Morton 
Signed-off-by: David S. Miller

[NET]: SPIN_LOCK_UNLOCKED cleanup in drivers/atm, net

2007-04-26T08:37:44+00:00

SPIN_LOCK_UNLOCKED cleanup,use __SPIN_LOCK_UNLOCKED instead

Signed-off-by: Milind Arun Choudhary 
Signed-off-by: Andrew Morton 
Signed-off-by: David S. Miller

[DCCP]: Debug statements for Elapsed Time option

2007-04-26T05:28:55+00:00

This prints the value of the parsed Elapsed Time when received via a
Timestamp Echo option [RFC 4342, 13.3].

Signed-off-by: Gerrit Renker 
Acked-by: Ian McDonald 
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[DCCP]: Fix bug in the calculation of very low sending rates

2007-04-26T05:28:54+00:00

This fixes an error in the calculation of t_ipi when X converges towards
very low sending rates (between 1 and 64 bytes per second).

Although this case may not sound likely, it can be reproduced by connecting,
hitting enter (1 byte sent) and waiting for some time, during which the
nofeedback timer halves the sending rate until finally it reaches the region
1..64 bytes/sec. Computing X is handled correctly (tested separately); but by
dividing X _before_ entering the calculation of t_ipi, X becomes zero as
a result.  This in turn triggers a BUG condition caught in scaled_div().

Fixed by replacing with equivalent statement and explicit typecast for good
measure.

Calculation verified and effect of patch tested - reduced never below 1 byte
per 64 seconds afterwards, i.e. not allowing divide-by-zero.

Signed-off-by: Gerrit Renker 
Acked-by: Ian McDonald 
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[CCID3]: Use initial RTT sample from SYN exchange

2007-04-26T05:27:04+00:00

The patch follows the following recommendation made in an erratum to RFC 4342:

  "Senders MAY additionally make use of other available RTT measurements,
   including those from the initial Request-Response packet exchange."

It implements larger initial windows with regard to this inital RTT measurement,
using the mechanism suggested in draft-ietf-dccp-rfc3448bis, section 4.2.

Signed-off-by: Gerrit Renker 
Signed-off-by: Ian McDonald 
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[DCCP]: Sample RTT from SYN exchange

2007-04-26T05:27:02+00:00

Function:

[CCID3]: Use function for RTT sampling

2007-04-26T05:27:01+00:00

This replaces the existing occurrences of RTT sampling with
the use of the new function dccp_sample_rtt.

Signed-off-by: Gerrit Renker 
Signed-off-by: Ian McDonald 
Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller