This patch adds support for dissection of the DCC packet as defined in
CableLab's (http://www.cablelabs.com/) DOCSIS Radio Frequency Interface
(RFI) specification. The latest version of this specification is currently
available at
http://www.cablemodem.com/specifications/specifications20.html . Packet
formats for DCC are defined in sections 8.3.20 (DCC-REQ), 8.3.21
(DCC-RSP), and 8.3.22 (DCC-ACK) of the RFI specifications (referencing
version CM-SP-RFIv2.0-I10-051209). In addition, this patch adds support
for the DCD packet as defined in the DOCSIS Set-Top Gateway (DSG)
Specification. The latest version of this specification is currently
available at http://www.cablemodem.com/specifications/gateway.html . The
format of the DCD packet is defined in section 5.3.1 of the DSG
specification (referencing version CM-SP-DSG-I06-051209).
svn path=/trunk/; revision=17138
