/net/irda/irnet/irnet_irda.h

  1/*
  2 *	IrNET protocol module : Synchronous PPP over an IrDA socket.
  3 *
  4 *		Jean II - HPL `00 - <jt@hpl.hp.com>
  5 *
  6 * This file contains all definitions and declarations necessary for the
  7 * IRDA part of the IrNET module (dealing with IrTTP, IrIAS and co).
  8 * This file is a private header, so other modules don't want to know
  9 * what's in there...
 10 */
 11
 12#ifndef IRNET_IRDA_H
 13#define IRNET_IRDA_H
 14
 15/***************************** INCLUDES *****************************/
 16/* Please add other headers in irnet.h */
 17
 18#include "irnet.h"		/* Module global include */
 19
 20/************************ CONSTANTS & MACROS ************************/
 21
 22/*
 23 * Name of the service (socket name) used by IrNET
 24 */
 25/* IAS object name (or part of it) */
 26#define IRNET_SERVICE_NAME	"IrNetv1"
 27/* IAS attribute */
 28#define IRNET_IAS_VALUE		"IrDA:TinyTP:LsapSel"
 29/* LMP notify name for client (only for /proc/net/irda/irlmp) */
 30#define IRNET_NOTIFY_NAME	"IrNET socket"
 31/* LMP notify name for server (only for /proc/net/irda/irlmp) */
 32#define IRNET_NOTIFY_NAME_SERV	"IrNET server"
 33
 34/****************************** TYPES ******************************/
 35
 36/*
 37 * This is the main structure where we store all the data pertaining to
 38 * the IrNET server (listen for connection requests) and the root
 39 * of the IrNET socket list
 40 */
 41typedef struct irnet_root
 42{
 43  irnet_socket		s;		/* To pretend we are a client... */
 44
 45  /* Generic stuff */
 46  int			magic;		/* Paranoia */
 47  int			running;	/* Are we operational ? */
 48
 49  /* Link list of all IrNET instances opened */
 50  hashbin_t *		list;
 51  spinlock_t		spinlock;	/* Serialize access to the list */
 52  /* Note : the way hashbin has been designed is absolutely not
 53   * reentrant, beware... So, we blindly protect all with spinlock */
 54
 55  /* Handle for the hint bit advertised in IrLMP */
 56  void *		skey;
 57
 58  /* Server socket part */
 59  struct ias_object *	ias_obj;	/* Our service name + lsap in IAS */
 60
 61} irnet_root;
 62
 63
 64/**************************** PROTOTYPES ****************************/
 65
 66/* ----------------------- CONTROL CHANNEL ----------------------- */
 67static void
 68	irnet_post_event(irnet_socket *,
 69			 irnet_event,
 70			 __u32,
 71			 __u32,
 72			 char *,
 73			 __u16);
 74/* ----------------------- IRDA SUBROUTINES ----------------------- */
 75static inline int
 76	irnet_open_tsap(irnet_socket *);
 77static inline __u8
 78	irnet_ias_to_tsap(irnet_socket *,
 79			  int,
 80			  struct ias_value *);
 81static inline int
 82	irnet_find_lsap_sel(irnet_socket *);
 83static inline int
 84	irnet_connect_tsap(irnet_socket *);
 85static inline int
 86	irnet_discover_next_daddr(irnet_socket *);
 87static inline int
 88	irnet_discover_daddr_and_lsap_sel(irnet_socket *);
 89static inline int
 90	irnet_dname_to_daddr(irnet_socket *);
 91/* ------------------------ SERVER SOCKET ------------------------ */
 92static inline int
 93	irnet_daddr_to_dname(irnet_socket *);
 94static inline irnet_socket *
 95	irnet_find_socket(irnet_socket *);
 96static inline int
 97	irnet_connect_socket(irnet_socket *,
 98			     irnet_socket *,
 99			     struct qos_info *,
100			     __u32,
101			     __u8);
102static inline void
103	irnet_disconnect_server(irnet_socket *,
104				struct sk_buff *);
105static inline int
106	irnet_setup_server(void);
107static inline void
108	irnet_destroy_server(void);
109/* ---------------------- IRDA-TTP CALLBACKS ---------------------- */
110static int
111	irnet_data_indication(void *,		/* instance */
112			      void *,		/* sap */
113			      struct sk_buff *);
114static void
115	irnet_disconnect_indication(void *,
116				    void *,
117				    LM_REASON,
118				    struct sk_buff *);
119static void
120	irnet_connect_confirm(void *,
121			      void *,
122			      struct qos_info *,
123			      __u32,
124			      __u8,
125			      struct sk_buff *);
126static void
127	irnet_flow_indication(void *,
128			      void *,
129			      LOCAL_FLOW);
130static void
131	irnet_status_indication(void *,
132				LINK_STATUS,
133				LOCK_STATUS);
134static void
135	irnet_connect_indication(void *,
136				 void *,
137				 struct qos_info *,
138				 __u32,
139				 __u8,
140				 struct sk_buff *);
141/* -------------------- IRDA-IAS/LMP CALLBACKS -------------------- */
142static void
143	irnet_getvalue_confirm(int,
144			       __u16,
145			       struct ias_value *,
146			       void *);
147static void
148	irnet_discovervalue_confirm(int,
149				    __u16,
150				    struct ias_value *,
151				    void *);
152#ifdef DISCOVERY_EVENTS
153static void
154	irnet_discovery_indication(discinfo_t *,
155				   DISCOVERY_MODE,
156				   void *);
157static void
158	irnet_expiry_indication(discinfo_t *,
159				DISCOVERY_MODE,
160				void *);
161#endif
162
163/**************************** VARIABLES ****************************/
164
165/*
166 * The IrNET server. Listen to connection requests and co...
167 */
168static struct irnet_root	irnet_server;
169
170/* Control channel stuff (note : extern) */
171struct irnet_ctrl_channel	irnet_events;
172
173/* The /proc/net/irda directory, defined elsewhere... */
174#ifdef CONFIG_PROC_FS
175extern struct proc_dir_entry *proc_irda;
176#endif /* CONFIG_PROC_FS */
177
178#endif /* IRNET_IRDA_H */