/* * one dkmodule per hardware interface to datakit * a given hardware device == (major device, range of minor devices) * channel 0 == (dev, lo) * there are hi-lo channels */ struct dkmodule { char *dkstate; /* open/closed status of channels */ struct queue *listnrq; /* channel to controller */ short dev; /* major device of datakit interface */ short lo, hi; /* range of devs on this controller */ short type; /* type of listener */ }; #ifdef KERNEL struct dkmodule *dkmodall(), *getdkmod(); #endif /* * channel states */ #define DKCLOSED 0 #define DKRCLOSE 1 /* remote hung up, local still around */ #define DKLCLOSE 2 /* closed locally, CMC hasn't acked yet */ #define DKOPEN 3 /* in use */ /* * listener types */ #define CMCLD 'c' #define UNIXPLD 'u' /* * M_PRICTL messages contain * one byte of subtype * perhaps another byte of channel number */ #define DKMCLOSE 0 /* this channel is closing */ #define DKMXINIT 01 /* re-init URP because of splice */