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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-11-12 11:42:58 +0300
committerDavid S. Miller <davem@davemloft.net>2008-11-12 11:42:58 +0300
commitf74e91b6cca5889e667193c7e794186db73c2000 (patch)
tree10f6a612d97b3ab5ba4ecd75b6decb669f178d76 /security
parent6bb3ce25d05f2990c8a19adaf427531430267c1f (diff)
downloadlinux-f74e91b6cca5889e667193c7e794186db73c2000.tar.xz
dccp: Limit feature negotiation to connection setup phase
This patch limits feature (capability) negotation to the connection setup phase: 1. Although it is theoretically possible to perform feature negotiation at any time (and RFC 4340 supports this), in practice this is prohibitively complex, as it requires to put traffic on hold for each new negotiation. 2. As a byproduct of restricting feature negotiation to connection setup, the feature-negotiation retransmit timer is no longer required. This part is now mapped onto the protocol-level retransmission. Details indicating why timers are no longer needed can be found on http://www.erg.abdn.ac.uk/users/gerrit/dccp/notes/feature_negotiation/\ implementation_notes.html This patch disables anytime negotiation, subsequent patches work out full feature negotiation support for connection setup. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security')
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