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 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 ----------------------- */
67 static void
68 irnet_post_event(irnet_socket *,
69 irnet_event,
70 __u32,
71 __u32,
72 char *,
73 __u16);
74 /* ----------------------- IRDA SUBROUTINES ----------------------- */
75 static inline int
76 irnet_open_tsap(irnet_socket *);
77 static inline __u8
78 irnet_ias_to_tsap(irnet_socket *,
79 int,
80 struct ias_value *);
81 static inline int
82 irnet_find_lsap_sel(irnet_socket *);
83 static inline int
84 irnet_connect_tsap(irnet_socket *);
85 static inline int
86 irnet_discover_next_daddr(irnet_socket *);
87 static inline int
88 irnet_discover_daddr_and_lsap_sel(irnet_socket *);
89 static inline int
90 irnet_dname_to_daddr(irnet_socket *);
91 /* ------------------------ SERVER SOCKET ------------------------ */
92 static inline int
93 irnet_daddr_to_dname(irnet_socket *);
94 static inline irnet_socket *
95 irnet_find_socket(irnet_socket *);
96 static inline int
97 irnet_connect_socket(irnet_socket *,
98 irnet_socket *,
99 struct qos_info *,
100 __u32,
101 __u8);
102 static inline void
103 irnet_disconnect_server(irnet_socket *,
104 struct sk_buff *);
105 static inline int
106 irnet_setup_server(void);
107 static inline void
108 irnet_destroy_server(void);
109 /* ---------------------- IRDA-TTP CALLBACKS ---------------------- */
110 static int
111 irnet_data_indication(void *, /* instance */
112 void *, /* sap */
113 struct sk_buff *);
114 static void
115 irnet_disconnect_indication(void *,
116 void *,
117 LM_REASON,
118 struct sk_buff *);
119 static void
120 irnet_connect_confirm(void *,
121 void *,
122 struct qos_info *,
123 __u32,
124 __u8,
125 struct sk_buff *);
126 static void
127 irnet_flow_indication(void *,
128 void *,
129 LOCAL_FLOW);
130 static void
131 irnet_status_indication(void *,
132 LINK_STATUS,
133 LOCK_STATUS);
134 static 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 -------------------- */
142 static void
143 irnet_getvalue_confirm(int,
144 __u16,
145 struct ias_value *,
146 void *);
147 static void
148 irnet_discovervalue_confirm(int,
149 __u16,
150 struct ias_value *,
151 void *);
152 #ifdef DISCOVERY_EVENTS
153 static void
154 irnet_discovery_indication(discinfo_t *,
155 DISCOVERY_MODE,
156 void *);
157 static void
158 irnet_expiry_indication(discinfo_t *,
159 DISCOVERY_MODE,
160 void *);
161 #endif
162 /* -------------------------- PROC ENTRY -------------------------- */
163 #ifdef CONFIG_PROC_FS
164 static int
165 irnet_proc_read(char *,
166 char **,
167 off_t,
168 int);
169 #endif /* CONFIG_PROC_FS */
170
171 /**************************** VARIABLES ****************************/
172
173 /*
174 * The IrNET server. Listen to connection requests and co...
175 */
176 static struct irnet_root irnet_server;
177
178 /* Control channel stuff (note : extern) */
179 struct irnet_ctrl_channel irnet_events;
180
181 /* The /proc/net/irda directory, defined elsewhere... */
182 #ifdef CONFIG_PROC_FS
183 extern struct proc_dir_entry *proc_irda;
184 #endif /* CONFIG_PROC_FS */
185
186 #endif /* IRNET_IRDA_H */
187
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