1isdnctrl(4) Special files isdnctrl(4)
2
6 isdnctrl - ISDN control device
7
9 #include <linux/isdn.h>
10
12 /dev/isdnctrl is a character device with major number 45 and minor num‐
13 bers 64 to 127. It allows controlling functionality of the Linux ISDN
14 subsystem.
15
17 Currently, the following ioctl calls are supported:
18 IIOCNETAIF
20 Add an ISDN network interface.
21 This function adds a network interface to the kernel's device
22 table. This interface can be used just like normal eth inter‐
23 faces.
24 Argument:
26 arg should point to a zero terminated string of max. 10
27 characters. if arg is NULL, the kernel assigns a name.
28 Return:
30 On success, the name of the new interface is copied to
31 arg. and the call returns 0. On failure, an error code
32 is returned.
33 IIOCNETASL
35 Create a slave interface.
36 Creates a slave interface for RAW-device channel-bundling.
37 These devices behave like network-interfaces, except they are
38 invisible to user. Only ISDN parameters can be controlled, not
39 IP-parameters. IP-parameters are inherited from the correspond‐
40 ing master-device.
41 Argument:
43 arg should point to a zero terminated string of max. 21
44 characters containing two comma-separated names. The
45 first part is the name of an existing ISDN network
46 device, which will be master. The second part will be the
47 name of the new slave interface.
48 Return:
50 On success, the name of the new interface is copied to
51 arg. and the call returns 0. On failure, an error code
52 is returned.
53 IIOCNETDIF
55 Delete a network-interface.
56 This call deletes an existing ISDN network interface.
57 Argument:
59 arg should point to a zero terminated string of max. 10
60 characters naming an existing interface which will be
61 deleted. If the interface is a master interface, all its
62 slave-interfaces will be deleted also.
63 Return:
65 On success, the call returns 0. On failure, an error code
66 is returned.
67 IIOCNETSCF
69 Set configurable parameters of an ISDN network interface.
70 This call replaces all ISDN related parameters of an interface
71 by the parameters given.
72 Argument:
74 arg should point to a struct isdn_net_ioctl_cfg (defined
75 in linux/isdn.h)
76 Return:
78 On success, the call returns 0. On failure, an error code
79 is returned.
80 IIOCNETGCF
82 Get configurable parameters of an ISDN network interface.
83 This call returns all ISDN related parameters of an interface.
84 Argument:
86 arg should point to a struct isdn_net_ioctl_cfg (defined
87 in linux/isdn.h) which will be filled by the current set‐
88 up.
89 Return:
91 On success, the call returns 0 and the interface-setup is
92 copied to *arg. On failure, an error code is returned.
93 IIOCNETANM
95 Add a phone number to an ISDN network interface.
96 This call adds a phone number to an existing network interface.
97 Argument:
99 arg should point to a struct isdn_net_ioctl_phone which
100 contains necessary information.
101 Return:
103 On success, the call returns 0 and the phone number is
104 added to either outgoing or incoming number list. On
105 failure, an error code is returned.
106 IIOCNETDNM
108 Delete a phone number from an ISDN network interface.
109 This call deletes a phone number from an existing network inter‐
110 face.
111 Argument:
113 arg should point to a struct isdn_net_ioctl_phone which
114 contains necessary information.
115 Return:
117 On success, the call returns 0 and the phone number is
118 deleted from either outgoing or incoming number list. On
119 failure, an error code is returned.
120 IIOCNETGNM
122 Get list of phone numbers from an ISDN network interface.
123 This call returns the list of phone numbers associated to an
124 existing network interface.
125 Argument:
127 arg should point to a union of struct
128 isdn_net_ioctl_phone and a buffer, large enough to hold a
129 concatenated list of strings containing the phone num‐
130 bers.
131 Return:
133 On success, the call returns 0 and the list of phone num‐
134 bers is returned as a space-separated list of number-
135 strings terminated by a NULL byte.
136 IIOCNETDIL
138 Trigger dialing of an ISDN network interface.
139 This call initiates dialing of an ISDN network interface, if it
140 is not connected. Normally, this ioctl is not needed, because
141 ISDN network interface perform dial on demand by default.
142 Argument:
144 arg should point to a zero terminated string of max. 10
145 characters naming the desired interface.
146 Return:
148 On success, the call returns 0 and the interface starts
149 dialing.
150 IIOCNETHUP
152 Hangup an ISDN network interface.
153 This call initiates hangup of an ISDN network interface, if it
154 is connected.
155 Argument:
157 arg should point to a zero terminated string of max. 10
158 characters naming the desired interface.
159 Return:
161 On success, the call returns 0 and the interface hangs
162 up.
163 IIOCNETALN
165 Add a link of an MPP-configured ISDN network interface.
166 This call initiates dialing of a Multilink-PPP slave ISDN net‐
167 work interface, if it is not connected.
168 Argument:
170 arg should point to a zero terminated string of max. 10
171 characters naming the desired interface.
172 Return:
174 On success, the call returns 0 and the interface starts
175 dialing.
176 IIOCNETDLN
178 Hangup an MPP-configured ISDN network interface.
179 This call initiates hangup of an Multilink-PPP ISDN network
180 interface, if it is connected.
181 Argument:
183 arg should point to a zero terminated string of max. 10
184 characters naming the desired interface.
185 Return:
187 On success, the call returns 0 and the interface hangs
188 up.
189 IIOCNETARU
191 Add a timeout rule to an ISDN network interface.
192 This call adds a timeout rule to an existing interface.
193 Argument:
195 arg should point to a struct isdn_ioctl_timeout_rule con‐
196 taining the necessary parameters.
197 Return:
199 On success, the call returns 0 and the rule is added to
200 the rule list of the interface.
201 IIOCNETDRU
203 Delete a timeout rule from an ISDN network interface.
204 This call deletes a timeout rule from an existing interface.
205 Argument:
207 arg should point to a struct isdn_ioctl_timeout_rule con‐
208 taining the necessary parameters.
209 Return:
211 On success, the call returns 0 and the rule is deleted
212 from the rule list of the interface.
213 IIOCNETGRU
215 Get a timeout rule from an ISDN network interface.
216 This call returns a timeout rule from an existing interface.
217 Argument:
219 arg should point to a struct isdn_ioctl_timeout_rule con‐
220 taining the necessary parameters.
221 Return:
223 On success, the call returns 0 and the struct is filled
224 from the rule list of the interface.
225 IIOCNETBUD
227 Handle budget accounting of an ISDN network interface.
228 Argument and Return:
230 to be defined.
231 IIOCSETVER
233 Set verbosity of link level.
234 Argument:
236 arg is an integer, defining the new verbose value.
237 Return:
239 This call always returns 0.
240 IIOCSETGST
242 Set global stop flag of link level.
243 Argument:
245 arg is an integer, defining the new stop flag value (0 or
246 !0).
247 Return:
249 This call always returns 0.
250 IIOCSETBRJ
252 Set busreject flag of a lowlevel driver.
253 Argument:
255 arg should point to an struct isdn_ioctl_struct contain‐
256 ing the driver's ID and the value of the busreject flag.
257 Return:
259 On success, the call returns 0 and the busreject flag of
260 the selected driver is set according the given parameter.
261 IIOCSIGPRF
263 Enable signaling on change of modem profiles.
264 With this call, the calling process is registered to receive a
265 SIGIO on every change of any register of any ttyI. Thus it can
266 read register settings and save them to a file. The calling
267 process has to keep the device open in order to receive notifi‐
268 cations. As soon as it closes the device, registration is
269 deleted.
270 Argument:
272 none
273 Return:
275 This call always returns 0.
276 IIOCGETPRF
278 Get all modem register settings.
279 With this call, all modem registers of all ttyI devices can be
280 read.
281 Argument:
283 arg should point to a buffer of length (
284 ISDN_MODEM_ANZREG + ISDN_MSNLEN ) * ISDN_MAX_CHANNELS.
285 Return:
287 On return, the provided buffer is filled with the regis‐
288 ter values.
289 IIOCSETPRF
291 Set all modem register settings.
292 With this call, all modem registers of all ttyI devices can be
293 written.
294 Argument:
296 arg should point to a buffer of length (
297 ISDN_MODEM_ANZREG + ISDN_MSNLEN ) * ISDN_MAX_CHANNELS.
298 filled with the values of all modem registers.
299 Return:
301 On return, the modem registers are set from the contents
302 of the provided buffer.
303 IIOCSETMAP
305 Set Mapping table.
306 This call is used to set EAZ/MSN mapping of a lowlevel driver.
307 Argument:
309 arg should point to a struct isdn_ioctl_struct containing
310 the necessary parameters.
311 Return:
313 On success, the mapping table is set from the given
314 parameters an the call returns 0.
315 IIOCGETMAP
317 Get Mapping table.
318 This call is used to get EAZ/MSN mapping of a lowlevel driver.
319 Argument:
321 arg should point to a struct isdn_ioctl_struct containing
322 the necessary parameters.
323 Return:
325 On success, the current mapping table of the given driver
326 is returned and the call returns 0.
327 IIOCDRVCTL
329 Lowlevel driver ioctl.
330 This call is used for controlling various lowlevel drivers. The
331 ioctl-code for this command is assembled by adding IIOCDRVCTL
332 (128) and the desired driver ioctl-code. Therefore, a lowlevel
333 driver can understand a maximum of 127 different ioctls.
334 Argument:
336 arg should point to a struct isdn_ioctl_struct containing
337 the necessary parameters, especially the driver-Id must
338 be filled correctly. The arg component inside
339 isdn_ioctl_struct is handed down to the driver's ioctl
340 function. Its meaning is not defined here and depends on
341 the lowlevel driver. See documentation for the various
342 lowlevel drivers for information about driver- specific
343 ioctl.
344 Return:
346 The return code depends on the driver's ioctl function.
347 Usually, 0 means no error.
348
351 Fritz Elfert <fritz@isdn4linux.de>
352
354 isdninfo(4), icnctrl(4).
355ISDN 4 Linux 3.27 1999/09/06 isdnctrl(4)