• Gerrit Renker's avatar
    dccp: Query supported CCIDs · d90ebcbf
    Gerrit Renker authored
    This provides a data structure to record which CCIDs are locally supported
    and three accessor functions:
     - a test function for internal use which is used to validate CCID requests
       made by the user;
     - a copy function so that the list can be used for feature-negotiation;   
     - documented getsockopt() support so that the user can query capabilities.
    
    The data structure is a table which is filled in at compile-time with the
    list of available CCIDs (which in turn depends on the Kconfig choices).
    
    Using the copy function for cloning the list of supported CCIDs is useful for
    feature negotiation, since the negotiation is now with the full list of available
    CCIDs (e.g. {2, 3}) instead of the default value {2}. This means negotiation 
    will not fail if the peer requests to use CCID3 instead of CCID2. 
    Signed-off-by: default avatarGerrit Renker <gerrit@erg.abdn.ac.uk>
    Acked-by: default avatarIan McDonald <ian.mcdonald@jandi.co.nz>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d90ebcbf
feat.c 25.3 KB