linux/net/dccp
Gerrit Renker b2e317f4b5 dccp ccid-3: No more CCID control blocks in LISTEN state
The CCIDs are activated as last of the features, at the end of the handshake,
were the LISTEN state of the master socket is inherited into the server
state of the child socket. Thus, the only states visible to CCIDs now are
OPEN/PARTOPEN, and the closing states.

This allows to remove tests which were previously necessary to protect
against referencing a socket in the listening state (in CCID3), but which
now have become redundant.

As a further byproduct of enabling the CCIDs only after the connection has been
fully established, several typecast-initialisations of ccid3_hc_{rx,tx}_sock
can now be eliminated:
 * the CCID is loaded, so it is not necessary to test if it is NULL,
 * if it is possible to load a CCID and leave the private area NULL, then this
    is a bug, which should crash loudly - and earlier,
 * the test for state==OPEN || state==PARTOPEN now reduces only to the closing
   phase (e.g. when the node has received an unexpected Reset).		  

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
2008-09-04 07:45:33 +02:00
..
ccids dccp ccid-3: No more CCID control blocks in LISTEN state 2008-09-04 07:45:33 +02:00
ackvec.c dccp: Set per-connection CCIDs via socket options 2008-09-04 07:45:28 +02:00
ackvec.h dccp: Leave headroom for options when calculating the MPS 2008-09-04 07:45:33 +02:00
ccid.c dccp: Auto-load (when supported) CCID plugins for negotiation 2008-09-04 07:45:31 +02:00
ccid.h dccp: Auto-load (when supported) CCID plugins for negotiation 2008-09-04 07:45:31 +02:00
dccp.h dccp: Special case of the MPS for client-PARTOPEN with DataAcks 2008-09-04 07:45:33 +02:00
diag.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-09-04 07:45:31 +02:00
feat.c dccp ccid-2: Use feature-negotiation to report Ack Ratio changes 2008-09-04 07:45:32 +02:00
feat.h dccp: Debugging functions for feature negotiation 2008-09-04 07:45:32 +02:00
input.c dccp ccid-2: Phase out the use of boolean Ack Vector sysctl 2008-09-04 07:45:31 +02:00
ipv4.c dccp: Cleanup routines for feature negotiation 2008-09-04 07:45:26 +02:00
ipv6.c dccp: Cleanup routines for feature negotiation 2008-09-04 07:45:26 +02:00
ipv6.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig [DCCP]: Promote CCID2 as default CCID 2008-01-28 14:54:46 -08:00
Makefile [DCCPv6]: Resolve conditional build problem 2006-12-02 21:22:28 -08:00
minisocks.c dccp: Implement both feature-local and feature-remote Sequence Window feature 2008-09-04 07:45:32 +02:00
options.c dccp: Debugging functions for feature negotiation 2008-09-04 07:45:32 +02:00
output.c dccp: Special case of the MPS for client-PARTOPEN with DataAcks 2008-09-04 07:45:33 +02:00
probe.c dccp ccid-3: Remove ccid3hc{tx,rx}_ prefixes 2008-09-04 07:45:33 +02:00
proto.c dccp ccid-2: Use feature-negotiation to report Ack Ratio changes 2008-09-04 07:45:32 +02:00
sysctl.c dccp: Initialisation and type-checking of feature sysctls 2008-09-04 07:45:32 +02:00
timer.c dccp: Limit feature negotiation to connection setup phase 2008-09-04 07:45:27 +02:00