2 * Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/param.h>
32 #if defined(__OpenBSD__) || defined(__NetBSD__)
33 #include <sys/ioctl.h>
39 #include <machine/i4b_ioctl.h>
40 #include <machine/i4b_rbch_ioctl.h>
43 #include <netisdn/i4b_ioctl.h>
44 #include <netisdn/i4b_rbch_ioctl.h>
46 #include <i4b/i4b_ioctl.h>
47 #include <i4b/i4b_rbch_ioctl.h>
65 #include "throughput.h"
71 #include "descriptor.h"
82 #define Online(dev) ((dev)->mbits & TIOCM_CD)
85 struct device dev; /* What struct physical knows about */
86 struct pppTimer Timer; /* CD checks */
87 int mbits; /* Current DCD status */
88 int carrier_seconds; /* seconds before CD is *required* */
91 #define device2i4b(d) ((d)->type == I4B_DEVICE ? (struct i4bdevice *)d : NULL)
96 return sizeof(struct i4bdevice);
100 * i4b_Timeout() watches the DCD signal and mentions it if it's status
104 i4b_Timeout(void *data)
106 struct physical *p = data;
107 struct i4bdevice *dev = device2i4b(p->handler);
110 timer_Stop(&dev->Timer);
111 dev->Timer.load = SECTICKS; /* Once a second please */
112 timer_Start(&dev->Timer);
116 if (ioctl(p->fd, TIOCMGET, &dev->mbits) < 0) {
117 log_Printf(LogPHASE, "%s: ioctl error (%s)!\n", p->link.name,
119 datalink_Down(p->dl, CLOSE_NORMAL);
120 timer_Stop(&dev->Timer);
127 /* First time looking for carrier */
129 log_Printf(LogPHASE, "%s: %s: CD detected\n", p->link.name, p->name.full);
130 else if (++dev->carrier_seconds >= dev->dev.cd.delay) {
131 log_Printf(LogPHASE, "%s: %s: No carrier"
132 " (increase ``set cd'' from %d ?)\n",
133 p->link.name, p->name.full, dev->dev.cd.delay);
134 timer_Stop(&dev->Timer);
135 /* i4b_AwaitCarrier() will notice */
138 log_Printf(LogDEBUG, "%s: %s: Still no carrier (%d/%d)\n",
139 p->link.name, p->name.full, dev->carrier_seconds,
144 change = ombits ^ dev->mbits;
145 if (change & TIOCM_CD) {
146 if (dev->mbits & TIOCM_CD)
147 log_Printf(LogDEBUG, "%s: offline -> online\n", p->link.name);
149 log_Printf(LogDEBUG, "%s: online -> offline\n", p->link.name);
150 log_Printf(LogPHASE, "%s: Carrier lost\n", p->link.name);
151 datalink_Down(p->dl, CLOSE_NORMAL);
152 timer_Stop(&dev->Timer);
155 log_Printf(LogDEBUG, "%s: Still %sline\n", p->link.name,
156 Online(dev) ? "on" : "off");
161 i4b_StartTimer(struct physical *p)
163 struct i4bdevice *dev = device2i4b(p->handler);
165 timer_Stop(&dev->Timer);
166 dev->Timer.load = SECTICKS;
167 dev->Timer.func = i4b_Timeout;
168 dev->Timer.name = "i4b CD";
170 log_Printf(LogDEBUG, "%s: Using i4b_Timeout [%p]\n",
171 p->link.name, i4b_Timeout);
172 timer_Start(&dev->Timer);
176 i4b_AwaitCarrier(struct physical *p)
178 struct i4bdevice *dev = device2i4b(p->handler);
180 if (dev->mbits == -1) {
181 if (dev->Timer.state == TIMER_STOPPED) {
182 dev->carrier_seconds = 0;
185 return CARRIER_PENDING; /* Not yet ! */
188 return Online(dev) ? CARRIER_OK : CARRIER_LOST;
192 i4b_Raw(struct physical *p)
196 log_Printf(LogDEBUG, "%s: Entering i4b_Raw\n", p->link.name);
198 oldflag = fcntl(p->fd, F_GETFL, 0);
201 fcntl(p->fd, F_SETFL, oldflag | O_NONBLOCK);
207 i4b_Offline(struct physical *p)
209 struct i4bdevice *dev = device2i4b(p->handler);
212 timer_Stop(&dev->Timer);
217 ioctl(p->fd, TIOCCDTR, &dummy);
223 i4b_Cooked(struct physical *p)
227 i4b_Offline(p); /* In case of emergency close()s */
229 if ((oldflag = fcntl(p->fd, F_GETFL, 0)) != -1)
230 fcntl(p->fd, F_SETFL, oldflag & ~O_NONBLOCK);
234 i4b_StopTimer(struct physical *p)
236 struct i4bdevice *dev = device2i4b(p->handler);
238 timer_Stop(&dev->Timer);
242 i4b_Free(struct physical *p)
244 struct i4bdevice *dev = device2i4b(p->handler);
246 i4b_Offline(p); /* In case of emergency close()s */
251 i4b_Speed(struct physical *p)
256 if (tcgetattr(p->fd, &ios) == -1 ||
257 (ret = SpeedToInt(cfgetispeed(&ios))) == 0)
264 i4b_OpenInfo(struct physical *p)
266 struct i4bdevice *dev = device2i4b(p->handler);
270 snprintf(buf, sizeof buf, "carrier took %ds", dev->carrier_seconds);
278 i4b_device2iov(struct device *d, struct iovec *iov, int *niov,
279 int maxiov, int *auxfd, int *nauxfd)
281 struct i4bdevice *dev = device2i4b(d);
282 int sz = physical_MaxDeviceSize();
284 iov[*niov].iov_base = realloc(d, sz);
285 if (iov[*niov].iov_base == NULL) {
286 log_Printf(LogALERT, "Failed to allocate memory: %d\n", sz);
287 AbortProgram(EX_OSERR);
289 iov[*niov].iov_len = sz;
292 if (dev->Timer.state != TIMER_STOPPED) {
293 timer_Stop(&dev->Timer);
294 dev->Timer.state = TIMER_RUNNING;
298 static struct device basei4bdevice = {
302 { CD_REQUIRED, DEF_I4BCDDELAY },
318 i4b_iov2device(int type, struct physical *p, struct iovec *iov, int *niov,
319 int maxiov, int *auxfd, int *nauxfd)
321 if (type == I4B_DEVICE) {
322 struct i4bdevice *dev = (struct i4bdevice *)iov[(*niov)++].iov_base;
324 dev = realloc(dev, sizeof *dev); /* Reduce to the correct size */
326 log_Printf(LogALERT, "Failed to allocate memory: %d\n",
328 AbortProgram(EX_OSERR);
331 /* Refresh function pointers etc */
332 memcpy(&dev->dev, &basei4bdevice, sizeof dev->dev);
334 physical_SetupStack(p, dev->dev.name, PHYSICAL_NOFORCE);
335 if (dev->Timer.state != TIMER_STOPPED) {
336 dev->Timer.state = TIMER_STOPPED;
337 p->handler = &dev->dev; /* For the benefit of StartTimer */
347 i4b_Create(struct physical *p)
349 struct i4bdevice *dev;
354 if (p->fd < 0 || ioctl(p->fd, I4B_RBCH_VR_REQ, &req))
355 /* Don't want this */
359 * We don't bother validating the version.... all versions of i4b that
360 * support I4B_RBCH_VR_REQ are fair game :-)
363 if (*p->name.full == '\0') {
364 physical_SetDevice(p, ttyname(p->fd));
365 log_Printf(LogDEBUG, "%s: Input is an i4b version %d.%d.%d isdn "
366 "device (%s)\n", p->link.name, req.version, req.release,
367 req.step, p->name.full);
370 log_Printf(LogDEBUG, "%s: Opened %s (i4b version %d.%d.%d)\n",
371 p->link.name, p->name.full, req.version, req.release, req.step);
375 /* We're gonna return an i4bdevice (unless something goes horribly wrong) */
377 if ((dev = malloc(sizeof *dev)) == NULL) {
378 /* Complete failure - parent doesn't continue trying to ``create'' */
384 memcpy(&dev->dev, &basei4bdevice, sizeof dev->dev);
385 memset(&dev->Timer, '\0', sizeof dev->Timer);
388 switch (p->cfg.cd.necessity) {
390 dev->dev.cd.delay = p->cfg.cd.delay;
393 dev->dev.cd = p->cfg.cd;
396 log_Printf(LogWARN, "%s: Carrier must be set, using ``set cd %d!''\n",
397 p->link.name, dev->dev.cd.delay);
402 oldflag = fcntl(p->fd, F_GETFL, 0);
404 /* Complete failure - parent doesn't continue trying to ``create'' */
406 log_Printf(LogWARN, "%s: Open: Cannot get physical flags: %s\n",
407 p->link.name, strerror(errno));
414 fcntl(p->fd, F_SETFL, oldflag & ~O_NONBLOCK);
417 strncpy(number, datalink_ChoosePhoneNumber(p->dl), sizeof number - 1);
418 number[sizeof number - 1] = '\0';
419 if (number[0] == '\0')
422 if (dial && ioctl(p->fd, I4B_RBCH_DIALOUT, number) == -1) {
423 /* Complete failure - parent doesn't continue trying to ``create'' */
425 log_Printf(LogWARN, "%s: ioctl(I4B_RBCH_DIALOUT): %s\n",
426 p->link.name, strerror(errno));
434 physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNC);