xref: /titanic_41/usr/src/cmd/cdrw/device.c (revision 42e143ab7b07db5946d8a863bd4b2627228bbe17)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <sys/types.h>
27 #include <fcntl.h>
28 #include <errno.h>
29 #include <sys/stat.h>
30 #include <sys/dkio.h>
31 #include <unistd.h>
32 #include <dirent.h>
33 #include <string.h>
34 #include <stdlib.h>
35 #include <libintl.h>
36 #include <limits.h>
37 #include <dbus/dbus.h>
38 #include <hal/libhal.h>
39 
40 #include "transport.h"
41 #include "mmc.h"
42 #include "device.h"
43 #include "util.h"
44 #include "msgs.h"
45 #include "misc_scsi.h"
46 #include "toshiba.h"
47 #include "main.h"
48 
49 /*
50  * Old sun drives have a vendor specific mode page for setting/getting speed.
51  * Also they use a different method for extracting audio.
52  * We have the device inquiry strings at this time. This is used to enable
53  * us to use older sun drives to extract audio.
54  */
55 static int
is_old_sun_drive(cd_device * dev)56 is_old_sun_drive(cd_device *dev)
57 {
58 	/*
59 	 * If we have a SONY CDU 561, CDU 8012, or TOSHIBA model with XMa we
60 	 * need to handle these drives a bit differently.
61 	 */
62 	if (strncmp("SONY", (const char *)&dev->d_inq[8], 4) == 0) {
63 		if (strncmp("CDU 561", (const char *)&dev->d_inq[16], 7) == 0)
64 			return (1);
65 		if (strncmp("CDU-8012", (const char *)&dev->d_inq[16], 8) == 0)
66 			return (1);
67 	}
68 
69 	if ((strncmp("TOSHIBA", (const char *)&dev->d_inq[8], 7) == 0) &&
70 	    (strncmp("XM", (const char *)&dev->d_inq[16], 2) == 0)) {
71 
72 		char product_id[17];
73 
74 		/* Changing speed is not allowed for 32X TOSHIBA drives */
75 		if (strncmp("SUN32XCD", (const char *)&dev->d_inq[24], 8) == 0)
76 			dev->d_cap |= DEV_CAP_SETTING_SPEED_NOT_ALLOWED;
77 		(void) strncpy(product_id, (const char *)&dev->d_inq[16], 16);
78 		product_id[16] = 0;
79 		if (strstr(product_id, "SUN") != NULL)
80 			return (1);
81 	}
82 	return (0);
83 }
84 
85 /*
86  * returns a cd_device handle for a node returned by lookup_device()
87  * also takes the user supplied name and stores it inside the node
88  */
89 cd_device *
get_device(char * user_supplied,char * node)90 get_device(char *user_supplied, char *node)
91 {
92 	cd_device *dev;
93 	int fd;
94 	uchar_t *cap;
95 	char devnode[PATH_MAX];
96 	int size;
97 	struct dk_minfo mediainfo;
98 	int use_cd_speed = 0;
99 
100 	/*
101 	 * we need to resolve any link paths to avoid fake files
102 	 * such as /dev/rdsk/../../export/file.
103 	 */
104 
105 	TRACE(traceall_msg("get_device(%s, %s)\n", user_supplied ?
106 	    user_supplied : "<nil>", node ? node : "<nil>"));
107 
108 	size = resolvepath(node, devnode, PATH_MAX);
109 	if ((size <= 0) || (size >= (PATH_MAX - 1)))
110 		return (NULL);
111 
112 	/* resolvepath may not return a null terminated string */
113 	devnode[size] = '\0';
114 
115 
116 	/* the device node must be in /devices/ or /vol/dev/rdsk */
117 
118 	if ((strncmp(devnode, "/devices/", 9) != 0) &&
119 	    (strncmp(devnode, "/vol/dev/rdsk", 13) != 0))
120 		return (NULL);
121 	/*
122 	 * Since we are currently running with the user euid it is
123 	 * safe to try to open the file without checking access.
124 	 */
125 
126 	fd = open(devnode, O_RDONLY|O_NDELAY);
127 
128 	if (fd < 0) {
129 		TRACE(traceall_msg("Cannot open %s: %s\n", node,
130 		    strerror(errno)));
131 		return (NULL);
132 	}
133 
134 	dev = (cd_device *)my_zalloc(sizeof (cd_device));
135 
136 	dev->d_node = (char *)my_zalloc(strlen(devnode) + 1);
137 	(void) strcpy(dev->d_node, devnode);
138 
139 	dev->d_fd = fd;
140 
141 	dev->d_inq = (uchar_t *)my_zalloc(INQUIRY_DATA_LENGTH);
142 
143 	if (!inquiry(fd, dev->d_inq)) {
144 		TRACE(traceall_msg("Inquiry failed on device %s\n", node));
145 		if (debug) {
146 			(void) printf("USCSI ioctl failed %d\n",
147 			    uscsi_error);
148 		}
149 		free(dev->d_inq);
150 		free(dev->d_node);
151 		(void) close(dev->d_fd);
152 		free(dev);
153 		return (NULL);
154 	}
155 
156 	if (debug) {
157 		cap = (uchar_t *)my_zalloc(18);
158 		(void) printf("Checking device type\n");
159 		if (get_mode_page(fd, 0x2A, 0, 8, cap)) {
160 			if (cap[2] & 0x10)
161 				(void) printf("DVD-R read support\n");
162 			if (cap[3] & 0x10)
163 				(void) printf("DVD-R write support\n");
164 			if (cap[5] & 0x4)
165 				(void) printf("R-W supported\n");
166 			if (cap[2] & 0x20)
167 				(void) printf("DVD-RAM read supported\n");
168 			if (cap[3] & 0x20)
169 				(void) printf("DVD-RAM write supported\n");
170 		} else {
171 			(void) printf("Could not read mode page 2A! \n");
172 		}
173 		free(cap);
174 	}
175 
176 	/* Detect if it's a Lite-ON drive with a streaming CD problem */
177 	if ((strncmp("LITE-ON", (const char *)&dev->d_inq[8], 7) == 0) &&
178 	    (strncmp("LTR-48", (const char *)&dev->d_inq[16], 6) == 0)) {
179 		use_cd_speed = 1;
180 	}
181 
182 	/*
183 	 * a workaround for the firmware problem in LITE-ON COMBO drives.
184 	 * streaming for these drives sets it only to max speed regardless
185 	 * of requested speed. cd_speed_ctrl allow speeds less than max
186 	 * to be set but not max thus the code below. (x48 is max speed
187 	 * for these drives).
188 	 */
189 	if ((strncmp("LITE-ON", (const char *)&dev->d_inq[8], 7) == 0) &&
190 	    (strncmp("COMBO SOHC-4836VS",
191 	    (const char *)&dev->d_inq[16], 17) == 0))
192 		if (requested_speed < 48)
193 			use_cd_speed = 1;
194 
195 	cap = (uchar_t *)my_zalloc(8);
196 	if (is_old_sun_drive(dev)) {
197 		dev->d_read_audio = toshiba_read_audio;
198 		dev->d_speed_ctrl = toshiba_speed_ctrl;
199 	} else {
200 		/*
201 		 * If the CD Read Feature is supported, READ CD will work
202 		 * and will return jitter free audio data. Otherwise, look
203 		 * at Page Code 2A for this information.
204 		 */
205 		if (ftr_supported(fd, MMC_FTR_CD_READ) == 1) {
206 			dev->d_read_audio = read_audio_through_read_cd;
207 			dev->d_cap |= DEV_CAP_ACCURATE_CDDA;
208 		} else if (get_mode_page(fd, 0x2A, 0, 8, cap)) {
209 			if (cap[5] & 1) {
210 				dev->d_read_audio = read_audio_through_read_cd;
211 				if (cap[5] & 2)
212 					dev->d_cap |= DEV_CAP_ACCURATE_CDDA;
213 			}
214 		}
215 		/*
216 		 * If the Real Time Streaming Feature is supported then
217 		 * Real-time streaming commands can be used for speed control
218 		 * (except when we want to use cd_speed_ctrl explicitly which
219 		 * is specified by setting use_cd_speed to 1).
220 		 * Otherwise try SET CD SPEED.
221 		 */
222 		if ((ftr_supported(fd, MMC_FTR_RT_STREAM) == 1) &&
223 		    !use_cd_speed) {
224 			dev->d_speed_ctrl = rt_streaming_ctrl;
225 			if (debug)
226 				(void) printf("using rt speed ctrl\n");
227 		} else {
228 			dev->d_speed_ctrl = cd_speed_ctrl;
229 			if (debug)
230 				(void) printf("using cd speed ctrl\n");
231 		}
232 	}
233 	if (dev->d_read_audio != NULL)
234 		dev->d_cap |= DEV_CAP_EXTRACT_CDDA;
235 
236 	dev->d_blksize = 0;
237 
238 	/*
239 	 * Find the block size of the device so we can translate
240 	 * the reads/writes to the device blocksize.
241 	 */
242 
243 	if (ioctl(fd, DKIOCGMEDIAINFO, &mediainfo) < 0) {
244 		/*
245 		 * If DKIOCGMEDIAINFO fails we'll try to get
246 		 * the blocksize from the device itself.
247 		 */
248 		if (debug)
249 			(void) printf("DKIOCGMEDIAINFO failed\n");
250 		if (read_capacity(fd, cap))
251 			dev->d_blksize = read_scsi32(cap + 4);
252 	} else {
253 
254 		dev->d_blksize = mediainfo.dki_lbsize;
255 	}
256 
257 	if (debug) {
258 		uint_t bsize;
259 
260 		(void) printf("blocksize = %d\n", dev->d_blksize);
261 		(void) printf("read_format_capacity = %d \n",
262 		    read_format_capacity(fd, &bsize));
263 	}
264 
265 	/*
266 	 * Some devices will return invalid blocksizes. ie. Toshiba
267 	 * drives will return 2352 when an audio CD is inserted.
268 	 * Older Sun drives will use 512 byte block sizes. All newer
269 	 * drives should have 2k blocksizes.
270 	 */
271 	if (((dev->d_blksize != 512) && (dev->d_blksize != 2048))) {
272 			if (is_old_sun_drive(dev)) {
273 				dev->d_blksize = 512;
274 			} else {
275 				dev->d_blksize = 2048;
276 			}
277 		if (debug)
278 			(void) printf(" switching to %d\n", dev->d_blksize);
279 	}
280 
281 	free(cap);
282 	if (user_supplied) {
283 		dev->d_name = (char *)my_zalloc(strlen(user_supplied) + 1);
284 		(void) strcpy(dev->d_name, user_supplied);
285 	}
286 	TRACE(traceall_msg("Got device %s\n", node));
287 	return (dev);
288 }
289 
290 void
fini_device(cd_device * dev)291 fini_device(cd_device *dev)
292 {
293 	free(dev->d_inq);
294 	free(dev->d_node);
295 	(void) close(dev->d_fd);
296 	if (dev->d_name)
297 		free(dev->d_name);
298 	free(dev);
299 }
300 
301 /*
302  * Given a /dev path resolve that path to a symbolic
303  * name such as cdrom0 if hald is running. If hald is
304  * not running, or does not have a symbolic name for the
305  * the specified /dev path return NULL.
306  */
307 static char *
hald_symname(char * path)308 hald_symname(char *path)
309 {
310 	LibHalContext *ctx = NULL;
311 	DBusError error;
312 
313 	char **udi, *p = NULL;
314 	int ndevs = 0, i;
315 
316 	/* Make sure hald is running */
317 	if (vol_running == 0)
318 		return (p);
319 
320 	dbus_error_init(&error);
321 
322 	if ((ctx = attach_to_hald()) == NULL)
323 		return (p);
324 
325 	if ((udi = libhal_manager_find_device_string_match(ctx,
326 	    HAL_RDSK_PROP, path, &ndevs, &error)) == NULL)
327 		goto done;
328 
329 	/* Look for the node that contains the valid (non-null) symdev */
330 	for (i = 0; i < ndevs; i++) {
331 		if ((p = libhal_device_get_property_string(ctx, udi[i],
332 		    HAL_SYMDEV_PROP, NULL)) != NULL)
333 			break;
334 		else
335 			libhal_free_string(p);
336 	}
337 
338 done:
339 	if (udi != NULL)
340 		libhal_free_string_array(udi);
341 	if (dbus_error_is_set(&error))
342 		dbus_error_free(&error);
343 	detach_from_hald(ctx, HAL_INITIALIZED);
344 	return (p);
345 }
346 
347 /*
348  * Given a name resolve that name to a raw device in the case
349  * that it is a symbolic name or just return what is given if
350  * we are given a /dev path or hald is not running.
351  */
352 static char *
hald_findname(char * symname)353 hald_findname(char *symname)
354 {
355 	LibHalContext *ctx = NULL;
356 	DBusError error;
357 
358 	char **udi, *path = NULL;
359 	int ndevs = 0, i;
360 
361 	/*
362 	 * We already have a raw path lets return it in a copied buffer
363 	 * as our caller assumes that they need to free memory.
364 	 */
365 	if (symname[0] == '/') {
366 		path = my_zalloc(strlen(symname) + 1);
367 		(void) strlcpy(path, symname, (strlen(symname) + 1));
368 		return (path);
369 	}
370 
371 	/* Get the raw device from the hal record */
372 	if (vol_running != 0) {
373 		dbus_error_init(&error);
374 
375 		if ((ctx = attach_to_hald()) == NULL)
376 			return (path);
377 
378 		if ((udi = libhal_manager_find_device_string_match(ctx,
379 		    HAL_SYMDEV_PROP, symname, &ndevs,
380 		    &error)) == NULL)
381 			goto done;
382 
383 		/*
384 		 * Loop over the returned UDIs to access the raw
385 		 * device path.
386 		 */
387 		for (i = 0; i < ndevs; i++) {
388 			if ((path = libhal_device_get_property_string(ctx,
389 			    udi[i], HAL_RDSK_PROP, NULL)) != NULL)
390 				break;
391 			else
392 				libhal_free_string(path);
393 		}
394 
395 done:
396 		if (udi != NULL)
397 			libhal_free_string_array(udi);
398 		if (dbus_error_is_set(&error))
399 			dbus_error_free(&error);
400 		detach_from_hald(ctx, HAL_INITIALIZED);
401 		return (path);
402 	} else {
403 		return (NULL);
404 	}
405 }
406 
407 static int
vol_name_to_dev_node(char * vname,char * found)408 vol_name_to_dev_node(char *vname, char *found)
409 {
410 	struct stat statbuf;
411 	char *p1;
412 	int i;
413 
414 	if (vname == NULL)
415 		return (0);
416 
417 	p1 = hald_findname(vname);
418 
419 	if (p1 == NULL)
420 		return (0);
421 	if (stat(p1, &statbuf) < 0) {
422 		libhal_free_string(p1);
423 		return (0);
424 	}
425 	if (S_ISDIR(statbuf.st_mode)) {
426 		for (i = 0; i < 16; i++) {
427 			(void) snprintf(found, PATH_MAX, "%s/s%d", p1, i);
428 			if (access(found, F_OK) >= 0)
429 				break;
430 		}
431 		if (i == 16) {
432 			libhal_free_string(p1);
433 			return (0);
434 		}
435 	} else {
436 		(void) strlcpy(found, p1, PATH_MAX);
437 	}
438 	libhal_free_string(p1);
439 	return (1);
440 }
441 
442 /*
443  * Builds an open()able device path from a user supplied node which can be
444  * of the * form of /dev/[r]dsk/cxtxdx[sx] or cxtxdx[sx] or volmgt-name like
445  * cdrom[n]
446  * returns the path found in 'found' and returns 1. Otherwise returns 0.
447  */
448 int
lookup_device(char * supplied,char * found)449 lookup_device(char *supplied, char *found)
450 {
451 	struct stat statbuf;
452 	int fd;
453 	char tmpstr[PATH_MAX];
454 
455 	/* If everything is fine and proper, no need to analyze */
456 	if ((stat(supplied, &statbuf) == 0) && S_ISCHR(statbuf.st_mode) &&
457 	    ((fd = open(supplied, O_RDONLY|O_NDELAY)) >= 0)) {
458 		(void) close(fd);
459 		(void) strlcpy(found, supplied, PATH_MAX);
460 		return (1);
461 	}
462 
463 	/*
464 	 * Hal only allows access to a device when the user is
465 	 * on the console, therefore if hal is running and we can't
466 	 * open the /dev/rdsk or /dev/removable-media/rdsk device
467 	 * file we will return 0 marking this device as not avaiable.
468 	 */
469 	if (fd < 0 && ((strncmp(supplied, "/dev/rdsk/", 10) == 0) ||
470 	    (strncmp(supplied, "/dev/removable-media/rdsk/", 26) == 0)))
471 		return (0);
472 
473 	if ((strncmp(supplied, "/dev/dsk/", 9) == 0) ||
474 	    (strncmp(supplied, "/dev/removable-media/dsk/", 25) == 0)) {
475 		(void) snprintf(tmpstr, PATH_MAX, "/dev/rdsk/%s",
476 		    (char *)strrchr(supplied, '/'));
477 
478 		if ((fd = open(tmpstr, O_RDONLY|O_NDELAY)) >= 0) {
479 			(void) close(fd);
480 			(void) strlcpy(found, supplied, PATH_MAX);
481 			return (1);
482 		}
483 
484 		/* This device can't be opened mark it as unavailable. */
485 		return (0);
486 	}
487 	if ((strncmp(supplied, "cdrom", 5) != 0) &&
488 	    (strlen(supplied) < 32)) {
489 		(void) snprintf(tmpstr, sizeof (tmpstr), "/dev/rdsk/%s",
490 		    supplied);
491 		if (access(tmpstr, F_OK) < 0) {
492 			(void) strcat(tmpstr, "s2");
493 		}
494 		if ((fd = open(tmpstr, O_RDONLY|O_NDELAY)) >= 0) {
495 			(void) close(fd);
496 			(void) strlcpy(found, tmpstr, PATH_MAX);
497 			return (1);
498 		}
499 
500 		/* This device can't be opened mark it as unavailable. */
501 		return (0);
502 	}
503 	return (vol_name_to_dev_node(supplied, found));
504 }
505 
506 /*
507  * Opens the device node name passed and returns 1 (true) if the
508  * device is a CD.
509  */
510 
511 static int
is_cd(char * node)512 is_cd(char *node)
513 {
514 	int fd;
515 	struct dk_cinfo cinfo;
516 	int ret = 1;
517 
518 	fd = open(node, O_RDONLY|O_NDELAY);
519 	if (fd < 0) {
520 		ret = 0;
521 	} else if (ioctl(fd, DKIOCINFO, &cinfo) < 0) {
522 		ret = 0;
523 	} else if (cinfo.dki_ctype != DKC_CDROM) {
524 		ret = 0;
525 	}
526 
527 	if (fd >= 0) {
528 		(void) close(fd);
529 	}
530 	return (ret);
531 }
532 
533 static void
print_header(void)534 print_header(void)
535 {
536 	/* l10n_NOTE : Column spacing should be kept same */
537 	(void) printf(gettext("    Node	           Connected Device"));
538 	/* l10n_NOTE : Column spacing should be kept same */
539 	(void) printf(gettext("	           Device type\n"));
540 	(void) printf(
541 	    "----------------------+--------------------------------");
542 	(void) printf("+-----------------\n");
543 }
544 
545 /*
546  * returns the number of writers or CD/DVD-roms found and the path of
547  * the first device found depending on the mode argument.
548  * possible mode values are:
549  * SCAN_ALL_CDS 	Scan all CD/DVD devices. Return first CD-RW found.
550  * SCAN_WRITERS		Scan all CD-RW devices. Return first one found.
551  * SCAN_LISTDEVS	List all devices found.
552  */
553 int
scan_for_cd_device(int mode,cd_device ** found)554 scan_for_cd_device(int mode, cd_device **found)
555 {
556 	DIR *dir;
557 	struct dirent *dirent;
558 	char sdev[PATH_MAX], dev[PATH_MAX];
559 	cd_device *t_dev;
560 	int writers_found = 0;
561 	int header_printed = 0;
562 	int is_writer;
563 	int total_devices_found;
564 
565 	TRACE(traceall_msg("scan_for_cd_devices (mode=%d) called\n", mode));
566 
567 	if (mode) {
568 		(void) printf(gettext("Looking for CD devices...\n"));
569 	}
570 
571 	dir = opendir("/dev/rdsk");
572 	if (dir == NULL)
573 		return (0);
574 
575 	writers_found = 0;
576 	total_devices_found = 0;
577 	while ((dirent = readdir(dir)) != NULL) {
578 		if (dirent->d_name[0] == '.')
579 			continue;
580 		(void) snprintf(sdev, PATH_MAX, "/dev/rdsk/%s",
581 		    dirent->d_name);
582 		if (strcmp("s2", (char *)strrchr(sdev, 's')) != 0)
583 			continue;
584 		if (!lookup_device(sdev, dev))
585 			continue;
586 		if (!is_cd(dev))
587 			continue;
588 		if ((t_dev = get_device(NULL, dev)) == NULL) {
589 			continue;
590 		}
591 		total_devices_found++;
592 
593 		is_writer = !(check_device(t_dev, CHECK_DEVICE_NOT_WRITABLE));
594 
595 		if (is_writer) {
596 			writers_found++;
597 
598 			if ((writers_found == 1) && (mode != SCAN_LISTDEVS)) {
599 				*found = t_dev;
600 			}
601 
602 		} else if ((mode == SCAN_ALL_CDS) && (writers_found == 0) &&
603 		    (total_devices_found == 1) && found) {
604 
605 			/* We found a CD-ROM or DVD-ROM */
606 			*found = t_dev;
607 		}
608 
609 		if (mode == SCAN_LISTDEVS) {
610 			char *sn;
611 
612 			sn = hald_symname(sdev);
613 			if (!header_printed) {
614 				print_header();
615 				header_printed = 1;
616 			}
617 			/* show vendor, model, firmware rev and device type */
618 			(void) printf(" %-21.21s| %.8s %.16s %.4s | %s%s\n",
619 			    sn ? sn : sdev, &t_dev->d_inq[8],
620 			    &t_dev->d_inq[16], &t_dev->d_inq[32],
621 			    gettext("CD Reader"),
622 			    is_writer ? gettext("/Writer") : "");
623 			if (sn)
624 				free(sn);
625 		}
626 		if ((found != NULL) && ((*found) != t_dev))
627 			fini_device(t_dev);
628 	}
629 
630 	(void) closedir(dir);
631 
632 	if ((mode & SCAN_WRITERS) || writers_found)
633 		return (writers_found);
634 	else
635 		return (total_devices_found);
636 }
637 
638 /*
639  * Check device for various conditions/capabilities
640  * If EXIT_IF_CHECK_FAILED set in cond then it will also exit after
641  * printing a message.
642  */
643 int
check_device(cd_device * dev,int cond)644 check_device(cd_device *dev, int cond)
645 {
646 	uchar_t *disc_info, disc_status = 0, erasable = 0;
647 	uchar_t page_code[4];
648 	char *errmsg = NULL;
649 
650 	if ((errmsg == NULL) && (cond & CHECK_TYPE_NOT_CDROM) &&
651 	    ((dev->d_inq[0] & 0x1f) != 5)) {
652 		errmsg =
653 		    gettext("Specified device does not appear to be a CDROM");
654 	}
655 
656 	if ((errmsg == NULL) && (cond & CHECK_DEVICE_NOT_READY) &&
657 	    !test_unit_ready(dev->d_fd)) {
658 		errmsg = gettext("Device not ready");
659 	}
660 
661 	/* Look at the capabilities page for this information */
662 	if ((errmsg == NULL) && (cond & CHECK_DEVICE_NOT_WRITABLE)) {
663 		if (!get_mode_page(dev->d_fd, 0x2a, 0, 4, page_code) ||
664 		    ((page_code[3] & 1) == 0)) {
665 			errmsg = gettext("Target device is not a CD writer");
666 		}
667 	}
668 
669 	if ((errmsg == NULL) && (cond & CHECK_NO_MEDIA)) {
670 		if (!test_unit_ready(dev->d_fd) && (uscsi_status == 2) &&
671 		    ((RQBUFLEN - rqresid) >= 14) &&
672 		    ((SENSE_KEY(rqbuf) & 0x0f) == 2) && (ASC(rqbuf) == 0x3A) &&
673 		    ((ASCQ(rqbuf) == 0) || (ASCQ(rqbuf) == 1) ||
674 		    (ASCQ(rqbuf) == 2))) {
675 			/* medium not present */
676 			errmsg = gettext("No media in device");
677 		}
678 	}
679 
680 
681 
682 	/* Issue READ DISC INFORMATION mmc command */
683 	if ((errmsg == NULL) && ((cond & CHECK_MEDIA_IS_NOT_BLANK) ||
684 	    (cond & CHECK_MEDIA_IS_NOT_WRITABLE) ||
685 	    (cond & CHECK_MEDIA_IS_NOT_ERASABLE))) {
686 
687 		disc_info = (uchar_t *)my_zalloc(DISC_INFO_BLOCK_SIZE);
688 		if (!read_disc_info(dev->d_fd, disc_info)) {
689 			errmsg = gettext("Cannot obtain disc information");
690 		} else {
691 			disc_status = disc_info[2] & 0x03;
692 			erasable = disc_info[2] & 0x10;
693 		}
694 		free(disc_info);
695 		if (errmsg == NULL) {
696 			if (!erasable && (cond & CHECK_MEDIA_IS_NOT_ERASABLE))
697 				errmsg = gettext(
698 				    "Media in the device is not erasable");
699 			else if ((disc_status != 0) &&
700 			    (cond & CHECK_MEDIA_IS_NOT_BLANK))
701 				errmsg = gettext(
702 				    "Media in the device is not blank");
703 			else if ((disc_status == 2) &&
704 			    (cond & CHECK_MEDIA_IS_NOT_WRITABLE) &&
705 			    ((device_type != DVD_PLUS_W) &&
706 			    (device_type != DVD_PLUS)))
707 				errmsg = gettext(
708 				    "Media in the device is not writable");
709 		}
710 	}
711 
712 	if (errmsg) {
713 		if (cond & EXIT_IF_CHECK_FAILED) {
714 			err_msg("%s.\n", errmsg);
715 			exit(1);
716 		}
717 		return (1);
718 	}
719 	return (0);
720 }
721 
722 /*
723  * Generic routine for writing whatever the next track is and taking
724  * care of the progress bar. Mode tells the track type (audio or data).
725  * Data from track is taken from the byte stream h
726  */
727 void
write_next_track(int mode,bstreamhandle h)728 write_next_track(int mode, bstreamhandle h)
729 {
730 	struct track_info *ti;
731 	struct trackio_error *te;
732 	off_t size;
733 
734 	ti = (struct track_info *)my_zalloc(sizeof (*ti));
735 	if ((build_track_info(target, -1, ti) == 0) ||
736 	    ((ti->ti_flags & TI_NWA_VALID) == 0)) {
737 		if ((device_type == DVD_PLUS) || (device_type ==
738 		    DVD_PLUS_W)) {
739 			ti->ti_flags |= TI_NWA_VALID;
740 		} else {
741 			err_msg(gettext(
742 			    "Cannot get writable address for the media.\n"));
743 			exit(1);
744 		}
745 	}
746 	if (ti->ti_nwa != ti->ti_start_address) {
747 		err_msg(gettext(
748 		    "Media state is not suitable for this write mode.\n"));
749 		exit(1);
750 	}
751 	if (mode == TRACK_MODE_DATA) {
752 		if (!(ti->ti_track_mode & 4)) {
753 			/* Write track depends upon this bit */
754 			ti->ti_track_mode |= TRACK_MODE_DATA;
755 		}
756 	}
757 	size = 0;
758 	h->bstr_size(h, &size);
759 	h->bstr_rewind(h);
760 	te = (struct trackio_error *)my_zalloc(sizeof (*te));
761 
762 	print_n_flush(gettext("Writing track %d..."), (int)ti->ti_track_no);
763 	init_progress();
764 	if (!write_track(target, ti, h, progress, size, te)) {
765 		if (te->err_type == TRACKIO_ERR_USER_ABORT) {
766 			(void) str_print(gettext("Aborted.\n"), progress_pos);
767 		} else {
768 			if (device_type != DVD_PLUS_W) {
769 			/* l10n_NOTE : 'failed' as in Writing Track...failed  */
770 				(void) str_print(gettext("failed.\n"),
771 				    progress_pos);
772 			}
773 		}
774 	}
775 	/* l10n_NOTE : 'done' as in "Writing track 1...done"  */
776 	(void) str_print(gettext("done.\n"), progress_pos);
777 	free(ti);
778 	free(te);
779 }
780 
781 void
list(void)782 list(void)
783 {
784 	if (scan_for_cd_device(SCAN_LISTDEVS, NULL) == 0) {
785 		if (vol_running) {
786 			err_msg(gettext(
787 			    "No CD writers found, no media in the drive "
788 			    "or not on the console.\n"));
789 		} else {
790 			if (cur_uid != 0) {
791 				err_msg(gettext(
792 				    "Volume manager is not running.\n"));
793 				err_msg(gettext(
794 "Please start volume manager or run cdrw as root to access all devices.\n"));
795 			} else {
796 				err_msg(gettext("No CD writers found.\n"));
797 			}
798 		}
799 	}
800 	exit(0);
801 }
802 
803 void
get_media_type(int fd)804 get_media_type(int fd)
805 {
806 	uchar_t *cap = (uchar_t *)my_zalloc(MMC_FTR_HDR_LEN);
807 
808 	if (get_configuration(fd, MMC_FTR_PRFL_LIST,
809 	    MMC_FTR_HDR_LEN, cap)) {
810 		if (debug)
811 			(void) print_profile_list(fd);
812 		switch (read_scsi16(&cap[6])) {
813 			case 0x8: /* CD-ROM */
814 				if (debug)
815 					(void) printf("CD-ROM found\n");
816 				/*
817 				 * To avoid regression issues, treat as
818 				 * A cdrw, we will check the writable
819 				 * mode page to see if the media is
820 				 * actually writable.
821 				 */
822 				device_type = CD_RW;
823 				break;
824 
825 			case 0x9: /* CD-R */
826 				if (debug)
827 					(void) printf("CD-R found\n");
828 				device_type = CD_RW;
829 				break;
830 
831 			case 0x10: /* DVD-ROM */
832 				/*
833 				 * Have seen drives return DVD+RW media
834 				 * DVD-ROM, so try treating it as a DVD+RW
835 				 * profile. checking for writable media
836 				 * is done through mode page 5.
837 				 */
838 				if (debug)
839 					(void) printf("DVD-ROM found\n");
840 				device_type = DVD_PLUS_W;
841 				break;
842 
843 			case 0xA: /* CD-RW */
844 				if (debug)
845 					(void) printf("CD-RW found\n");
846 				device_type = CD_RW;
847 				break;
848 
849 			case 0x11: /* DVD-R */
850 				if (debug)
851 					(void) printf("DVD-R found\n");
852 				device_type = DVD_MINUS;
853 				break;
854 
855 			case 0x12: /* DVD-RAM */
856 				if (debug)
857 					(void) printf("DVD-RAM found\n");
858 				/* treat as CD-RW, may be a legacy drive */
859 				device_type = CD_RW;
860 				break;
861 
862 			case 0x13: /* DVD-RW restricted overwrite */
863 			case 0x14: /* DVD-RW sequential */
864 				if (debug)
865 					(void) printf("DVD-RW found\n");
866 				device_type = DVD_MINUS;
867 				break;
868 
869 			case 0x15: /* DVD-R Dual Layer Sequential Recording */
870 			case 0x16: /* DVD-R Dual Layer Jump Recording */
871 				if (debug)
872 					(void) printf("DVD-R DL found\n");
873 				device_type = DVD_MINUS;
874 				break;
875 
876 			case 0x17: /* DVD-RW Dual Layer */
877 				if (debug)
878 					(void) printf("DVD-RW DL found\n");
879 				device_type = DVD_MINUS;
880 				break;
881 
882 			case 0x1A: /* DVD+RW */
883 				if (debug)
884 					(void) printf("DVD+RW found\n");
885 
886 				device_type = DVD_PLUS_W;
887 				break;
888 
889 			case 0x1B: /* DVD+R */
890 				if (debug)
891 					(void) printf("DVD+R found\n");
892 				device_type = DVD_PLUS;
893 				break;
894 
895 			case 0x2A: /* DVD+RW Dual Layer */
896 				if (debug)
897 					(void) printf("DVD+RW DL found\n");
898 				device_type = DVD_PLUS_W;
899 				break;
900 
901 			case 0x2B: /* DVD+R Dual Layer */
902 				if (debug)
903 					(void) printf("DVD+R DL found\n");
904 				device_type = DVD_PLUS;
905 				break;
906 
907 			default:
908 				if (debug)
909 					(void) printf(
910 					    "unknown drive found\n type = 0x%x",
911 					    cap[7]);
912 				/*
913 				 * Treat as CD_RW to avoid regression, may
914 				 * be a legacy drive.
915 				 */
916 				device_type = CD_RW;
917 		}
918 	}
919 	free(cap);
920 }
921 
922 /* Translate a transfer rate (eg, KB/s) into a Speed (eg, "2X") */
923 uint_t
cdrw_bandwidth_to_x(uint_t rate)924 cdrw_bandwidth_to_x(uint_t rate)
925 {
926 	switch (device_type) {
927 	case DVD_PLUS_W:
928 	case DVD_MINUS:
929 	case DVD_PLUS:
930 		return (DVD_RATE_TO_X(rate));
931 
932 	default:
933 	case CD_RW:
934 		return (CD_RATE_TO_X(rate));
935 	}
936 }
937 
938 /* Translate a Speed (eg, "2X") into a transfer rate (eg, KB/s) */
939 uint_t
cdrw_x_to_bandwidth(uint_t x)940 cdrw_x_to_bandwidth(uint_t x)
941 {
942 	switch (device_type) {
943 	case DVD_PLUS_W:
944 	case DVD_MINUS:
945 	case DVD_PLUS:
946 		return (DVD_X_TO_RATE(x));
947 
948 	default:
949 	case CD_RW:
950 		return (CD_X_TO_RATE(x));
951 	}
952 }
953