CoCalc -- irnet

GitHub Repository: awilliam/linux-vfio
Path: blob/master/net/irda/irnet/irnet_irda.h
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/*
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 *	IrNET protocol module : Synchronous PPP over an IrDA socket.
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 *
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 *		Jean II - HPL `00 - <[email protected]>
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 *
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 * This file contains all definitions and declarations necessary for the
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 * IRDA part of the IrNET module (dealing with IrTTP, IrIAS and co).
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 * This file is a private header, so other modules don't want to know
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 * what's in there...
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 */
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#ifndef IRNET_IRDA_H
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#define IRNET_IRDA_H
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/***************************** INCLUDES *****************************/
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/* Please add other headers in irnet.h */
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#include "irnet.h"		/* Module global include */
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/************************ CONSTANTS & MACROS ************************/
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/*
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 * Name of the service (socket name) used by IrNET
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 */
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/* IAS object name (or part of it) */
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#define IRNET_SERVICE_NAME	"IrNetv1"
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/* IAS attribute */
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#define IRNET_IAS_VALUE		"IrDA:TinyTP:LsapSel"
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/* LMP notify name for client (only for /proc/net/irda/irlmp) */
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#define IRNET_NOTIFY_NAME	"IrNET socket"
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/* LMP notify name for server (only for /proc/net/irda/irlmp) */
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#define IRNET_NOTIFY_NAME_SERV	"IrNET server"
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/****************************** TYPES ******************************/
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/*
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 * This is the main structure where we store all the data pertaining to
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 * the IrNET server (listen for connection requests) and the root
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 * of the IrNET socket list
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 */
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typedef struct irnet_root
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{
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  irnet_socket		s;		/* To pretend we are a client... */
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  /* Generic stuff */
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  int			magic;		/* Paranoia */
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  int			running;	/* Are we operational ? */
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  /* Link list of all IrNET instances opened */
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  hashbin_t *		list;
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  spinlock_t		spinlock;	/* Serialize access to the list */
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  /* Note : the way hashbin has been designed is absolutely not
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   * reentrant, beware... So, we blindly protect all with spinlock */
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  /* Handle for the hint bit advertised in IrLMP */
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  void *		skey;
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  /* Server socket part */
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  struct ias_object *	ias_obj;	/* Our service name + lsap in IAS */
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} irnet_root;
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/**************************** PROTOTYPES ****************************/
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/* ----------------------- CONTROL CHANNEL ----------------------- */
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static void
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	irnet_post_event(irnet_socket *,
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			 irnet_event,
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			 __u32,
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			 __u32,
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			 char *,
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			 __u16);
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/* ----------------------- IRDA SUBROUTINES ----------------------- */
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static inline int
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	irnet_open_tsap(irnet_socket *);
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static inline __u8
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	irnet_ias_to_tsap(irnet_socket *,
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			  int,
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			  struct ias_value *);
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static inline int
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	irnet_find_lsap_sel(irnet_socket *);
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static inline int
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	irnet_connect_tsap(irnet_socket *);
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static inline int
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	irnet_discover_next_daddr(irnet_socket *);
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static inline int
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	irnet_discover_daddr_and_lsap_sel(irnet_socket *);
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static inline int
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	irnet_dname_to_daddr(irnet_socket *);
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/* ------------------------ SERVER SOCKET ------------------------ */
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static inline int
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	irnet_daddr_to_dname(irnet_socket *);
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static inline irnet_socket *
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	irnet_find_socket(irnet_socket *);
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static inline int
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	irnet_connect_socket(irnet_socket *,
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			     irnet_socket *,
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			     struct qos_info *,
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			     __u32,
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			     __u8);
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static inline void
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	irnet_disconnect_server(irnet_socket *,
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				struct sk_buff *);
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static inline int
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	irnet_setup_server(void);
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static inline void
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	irnet_destroy_server(void);
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/* ---------------------- IRDA-TTP CALLBACKS ---------------------- */
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static int
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	irnet_data_indication(void *,		/* instance */
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			      void *,		/* sap */
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			      struct sk_buff *);
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static void
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	irnet_disconnect_indication(void *,
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				    void *,
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				    LM_REASON,
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				    struct sk_buff *);
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static void
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	irnet_connect_confirm(void *,
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			      void *,
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			      struct qos_info *,
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			      __u32,
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			      __u8,
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			      struct sk_buff *);
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static void
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	irnet_flow_indication(void *,
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			      void *,
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			      LOCAL_FLOW);
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static void
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	irnet_status_indication(void *,
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				LINK_STATUS,
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				LOCK_STATUS);
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static void
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	irnet_connect_indication(void *,
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				 void *,
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				 struct qos_info *,
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				 __u32,
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				 __u8,
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				 struct sk_buff *);
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/* -------------------- IRDA-IAS/LMP CALLBACKS -------------------- */
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static void
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	irnet_getvalue_confirm(int,
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			       __u16,
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			       struct ias_value *,
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			       void *);
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static void
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	irnet_discovervalue_confirm(int,
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				    __u16,
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				    struct ias_value *,
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				    void *);
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#ifdef DISCOVERY_EVENTS
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static void
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	irnet_discovery_indication(discinfo_t *,
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				   DISCOVERY_MODE,
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				   void *);
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static void
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	irnet_expiry_indication(discinfo_t *,
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				DISCOVERY_MODE,
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				void *);
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#endif
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/**************************** VARIABLES ****************************/
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/*
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 * The IrNET server. Listen to connection requests and co...
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 */
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static struct irnet_root	irnet_server;
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/* Control channel stuff (note : extern) */
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struct irnet_ctrl_channel	irnet_events;
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/* The /proc/net/irda directory, defined elsewhere... */
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#ifdef CONFIG_PROC_FS
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extern struct proc_dir_entry *proc_irda;
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#endif /* CONFIG_PROC_FS */
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#endif /* IRNET_IRDA_H */
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