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  */
  41 typedef 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   __u32                 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 ----------------------- */
  67 static void
  68         irnet_post_event(irnet_socket *,
  69                          irnet_event,
  70                          __u32,
  71                          __u32,
  72                          char *);
  73 /* ----------------------- IRDA SUBROUTINES ----------------------- */
  74 static inline int
  75         irnet_open_tsap(irnet_socket *);
  76 static inline __u8
  77         irnet_ias_to_tsap(irnet_socket *,
  78                           int,
  79                           struct ias_value *);
  80 static inline int
  81         irnet_find_lsap_sel(irnet_socket *);
  82 static inline int
  83         irnet_connect_tsap(irnet_socket *);
  84 static inline int
  85         irnet_discover_next_daddr(irnet_socket *);
  86 static inline int
  87         irnet_discover_daddr_and_lsap_sel(irnet_socket *);
  88 static inline int
  89         irnet_dname_to_daddr(irnet_socket *);
  90 /* ------------------------ SERVER SOCKET ------------------------ */
  91 static inline int
  92         irnet_daddr_to_dname(irnet_socket *);
  93 static inline irnet_socket *
  94         irnet_find_socket(irnet_socket *);
  95 static inline int
  96         irnet_connect_socket(irnet_socket *,
  97                              irnet_socket *,
  98                              struct qos_info *,
  99                              __u32,
 100                              __u8);
 101 static inline void
 102         irnet_disconnect_server(irnet_socket *,
 103                                 struct sk_buff *);
 104 static inline int
 105         irnet_setup_server(void);
 106 static inline void
 107         irnet_destroy_server(void);
 108 /* ---------------------- IRDA-TTP CALLBACKS ---------------------- */
 109 static int
 110         irnet_data_indication(void *,           /* instance */
 111                               void *,           /* sap */
 112                               struct sk_buff *);
 113 static void
 114         irnet_disconnect_indication(void *,
 115                                     void *,
 116                                     LM_REASON,
 117                                     struct sk_buff *);
 118 static void
 119         irnet_connect_confirm(void *,
 120                               void *,
 121                               struct qos_info *,
 122                               __u32,
 123                               __u8,
 124                               struct sk_buff *);
 125 static void
 126         irnet_flow_indication(void *,
 127                               void *,
 128                               LOCAL_FLOW);
 129 static void
 130         irnet_status_indication(void *,
 131                                 LINK_STATUS,
 132                                 LOCK_STATUS);
 133 static void
 134         irnet_connect_indication(void *,
 135                                  void *,
 136                                  struct qos_info *,
 137                                  __u32,
 138                                  __u8,
 139                                  struct sk_buff *);
 140 /* -------------------- IRDA-IAS/LMP CALLBACKS -------------------- */
 141 static void
 142         irnet_getvalue_confirm(int,
 143                                __u16,
 144                                struct ias_value *,
 145                                void *);
 146 static void
 147         irnet_discovervalue_confirm(int,
 148                                     __u16,
 149                                     struct ias_value *,
 150                                     void *);
 151 #ifdef DISCOVERY_EVENTS
 152 static void
 153         irnet_discovery_indication(discovery_t *,
 154                                    DISCOVERY_MODE,
 155                                    void *);
 156 static void
 157         irnet_expiry_indication(discovery_t *,
 158                                 DISCOVERY_MODE,
 159                                 void *);
 160 #endif
 161 /* -------------------------- PROC ENTRY -------------------------- */
 162 #ifdef CONFIG_PROC_FS
 163 static int
 164         irnet_proc_read(char *,
 165                         char **,
 166                         off_t,
 167                         int);
 168 #endif /* CONFIG_PROC_FS */
 169
 170 /**************************** VARIABLES ****************************/
 171
 172 /*
 173  * The IrNET server. Listen to connection requests and co...
 174  */
 175 static struct irnet_root        irnet_server;
 176
 177 /* Control channel stuff (note : extern) */
 178 struct irnet_ctrl_channel       irnet_events;
 179
 180 /* The /proc/net/irda directory, defined elsewhere... */
 181 #ifdef CONFIG_PROC_FS
 182 extern struct proc_dir_entry *proc_irda;
 183 #endif /* CONFIG_PROC_FS */
 184
 185 #endif /* IRNET_IRDA_H */