linux/net/dccp
David S. Miller 6e5714eaf7 net: Compute protocol sequence numbers and fragment IDs using MD5.
Computers have become a lot faster since we compromised on the
partial MD4 hash which we use currently for performance reasons.

MD5 is a much safer choice, and is inline with both RFC1948 and
other ISS generators (OpenBSD, Solaris, etc.)

Furthermore, only having 24-bits of the sequence number be truly
unpredictable is a very serious limitation.  So the periodic
regeneration and 8-bit counter have been removed.  We compute and
use a full 32-bit sequence number.

For ipv6, DCCP was found to use a 32-bit truncated initial sequence
number (it needs 43-bits) and that is fixed here as well.

Reported-by: Dan Kaminsky <dan@doxpara.com>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-06 18:33:19 -07:00
..
ccids dccp ccid-2: Perform congestion-window validation 2011-07-04 12:37:49 -06:00
ackvec.c dccp ccid-2: whitespace fix-up 2010-11-18 09:37:07 -08:00
ackvec.h dccp ccid-2: Separate option parsing from CCID processing 2010-11-15 07:12:01 +01:00
ccid.c dccp: cosmetics of info message 2011-07-04 12:37:13 -06:00
ccid.h dccp: Return-value convention of hc_tx_send_packet() 2010-10-28 10:27:00 -07:00
dccp.h dccp: fix bug in updating the GSR 2011-01-07 12:22:43 +01:00
diag.c dccp_diag: LISTEN sockets don't have CCIDs 2008-12-17 16:08:01 -08:00
feat.c dccp: Kill dead code and add static markers. 2010-10-06 23:12:07 -07:00
feat.h dccp: Kill dead code and add static markers. 2010-10-06 23:12:07 -07:00
input.c dccp: Clean up slow-path input processing 2011-07-04 12:36:33 -06:00
ipv4.c net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
ipv6.c net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
ipv6.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig Docs/Kconfig: Update: osdl.org -> linuxfoundation.org 2010-11-15 23:50:13 +01:00
Makefile dccp: Policy-based packet dequeueing infrastructure 2010-12-07 13:47:12 +01:00
minisocks.c dccp: fix the adjustments to AWL and SWL 2010-10-12 06:57:40 +02:00
options.c dccp: handle invalid feature options length 2011-05-06 13:05:50 -07:00
output.c dccp: combine the functionality of enqeueing and cloning 2011-07-04 12:36:47 -06:00
probe.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
proto.c dccp qpolicy: Parameter checking of cmsg qpolicy parameters 2010-12-07 13:47:12 +01:00
qpolicy.c dccp qpolicy: Parameter checking of cmsg qpolicy parameters 2010-12-07 13:47:12 +01:00
sysctl.c dccp: make upper bound for seq_window consistent on 32/64 bit 2011-01-07 12:22:44 +01:00
timer.c dccp: Refine the wait-for-ccid mechanism 2010-10-28 10:27:01 -07:00