cvs commit: src/sys/netinet ip_input.c ip_var.h

[Andre Oppermann]

andre       2004-10-19 15:45:57 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          ip_input.c ip_var.h 
  Log:
  Support for dynamically loadable and unloadable IP protocols in the ipmux.
  
  With pr_proto_register() it has become possible to dynamically load protocols
  within the PF_INET domain.  However the PF_INET domain has a second important
  structure called ip_protox[] that is derived from the 'struct protosw inetsw[]'
  and takes care of the de-multiplexing of the various protocols that ride on
  top of IP packets.
  
  The functions ipproto_[un]register() allow to dynamically adjust the ip_protox[]
  array mux in a consistent and easy way.  To register a protocol within
  ip_protox[] the existence of a corresponding and matching protocol definition
  in inetsw[] is required.  The function does not allow to overwrite an already
  registered protocol.  The unregister function simply replaces the mux slot with
  the default index pointer to IPPROTO_RAW as it was previously.
  
  Revision  Changes    Path
  1.292     +62 -1     src/sys/netinet/ip_input.c
  1.92      +2 -0      src/sys/netinet/ip_var.h