2 * Copyright (c) 2000 Kelly Yancey <kbyanc@posi.net>
3 * Derived from work done by Julian Elischer <julian@tfs.com,
4 * julian@dialix.oz.au>, 1993, and Peter Dufault <dufault@hda.com>, 1994.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sbin/camcontrol/modeedit.c,v 1.5.2.2 2003/01/08 17:55:02 njl Exp $
29 * $DragonFly: src/sbin/camcontrol/modeedit.c,v 1.2 2003/06/17 04:27:32 dillon Exp $
32 #include <sys/queue.h>
33 #include <sys/types.h>
45 #include <cam/scsi/scsi_all.h>
47 #include <cam/cam_ccb.h>
49 #include "camcontrol.h"
53 #define DEFAULT_SCSI_MODE_DB "/usr/share/misc/scsi_modes"
54 #define DEFAULT_EDITOR "vi"
55 #define MAX_FORMAT_SPEC 4096 /* Max CDB format specifier. */
56 #define MAX_PAGENUM_LEN 10 /* Max characters in page num. */
57 #define MAX_PAGENAME_LEN 64 /* Max characters in page name. */
58 #define PAGEDEF_START '{' /* Page definition delimiter. */
59 #define PAGEDEF_END '}' /* Page definition delimiter. */
60 #define PAGENAME_START '"' /* Page name delimiter. */
61 #define PAGENAME_END '"' /* Page name delimiter. */
62 #define PAGEENTRY_END ';' /* Page entry terminator (optional). */
63 #define MAX_COMMAND_SIZE 255 /* Mode/Log sense data buffer size. */
64 #define PAGE_CTRL_SHIFT 6 /* Bit offset to page control field. */
67 /* Macros for working with mode pages. */
68 #define MODE_PAGE_HEADER(mh) \
69 (struct scsi_mode_page_header *)find_mode_page_6(mh)
71 #define MODE_PAGE_DATA(mph) \
72 (u_int8_t *)(mph) + sizeof(struct scsi_mode_page_header)
76 STAILQ_ENTRY(editentry) link;
86 STAILQ_HEAD(, editentry) editlist; /* List of page entries. */
87 int editlist_changed = 0; /* Whether any entries were changed. */
90 SLIST_ENTRY(pagename) link;
94 SLIST_HEAD(, pagename) namelist; /* Page number to name mappings. */
96 static char format[MAX_FORMAT_SPEC]; /* Buffer for scsi cdb format def. */
98 static FILE *edit_file = NULL; /* File handle for edit file. */
99 static char edit_path[] = "/tmp/camXXXXXX";
102 /* Function prototypes. */
103 static void editentry_create(void *hook, int letter, void *arg,
104 int count, char *name);
105 static void editentry_update(void *hook, int letter, void *arg,
106 int count, char *name);
107 static int editentry_save(void *hook, char *name);
108 static struct editentry *editentry_lookup(char *name);
109 static int editentry_set(char *name, char *newvalue,
111 static void editlist_populate(struct cam_device *device,
112 int modepage, int page_control,
113 int dbd, int retries, int timeout);
114 static void editlist_save(struct cam_device *device, int modepage,
115 int page_control, int dbd, int retries,
117 static void nameentry_create(int pagenum, char *name);
118 static struct pagename *nameentry_lookup(int pagenum);
119 static int load_format(char *pagedb_path, int page);
120 static int modepage_write(FILE *file, int editonly);
121 static int modepage_read(FILE *file);
122 static void modepage_edit(void);
123 static void modepage_dump(struct cam_device *device, int page,
124 int page_control, int dbd, int retries,
126 static void cleanup_editfile(void);
127 void mode_edit(struct cam_device *device, int page,
128 int page_control, int dbd, int edit,
129 int binary, int retry_count, int timeout);
130 void mode_list(struct cam_device *device, int page_control,
131 int dbd, int retry_count, int timeout);
134 #define returnerr(code) do { \
140 #define RTRIM(string) do { \
142 while (isspace(string[_length = strlen(string) - 1])) \
143 string[_length] = '\0'; \
148 editentry_create(void *hook, int letter, void *arg, int count, char *name)
150 struct editentry *newentry; /* Buffer to hold new entry. */
152 /* Allocate memory for the new entry and a copy of the entry name. */
153 if ((newentry = malloc(sizeof(struct editentry))) == NULL ||
154 (newentry->name = strdup(name)) == NULL)
157 /* Trim any trailing whitespace for the entry name. */
158 RTRIM(newentry->name);
160 newentry->editable = (arg != NULL);
161 newentry->type = letter;
162 newentry->size = count; /* Placeholder; not accurate. */
163 newentry->value.svalue = NULL;
165 STAILQ_INSERT_TAIL(&editlist, newentry, link);
169 editentry_update(void *hook, int letter, void *arg, int count, char *name)
171 struct editentry *dest; /* Buffer to hold entry to update. */
173 dest = editentry_lookup(name);
174 assert(dest != NULL);
177 dest->size = count; /* We get the real size now. */
179 switch (dest->type) {
180 case 'i': /* Byte-sized integral type. */
181 case 'b': /* Bit-sized integral types. */
183 dest->value.ivalue = (intptr_t)arg;
186 case 'c': /* Character array. */
187 case 'z': /* Null-padded string. */
188 editentry_set(name, (char *)arg, 0);
196 editentry_save(void *hook, char *name)
198 struct editentry *src; /* Entry value to save. */
200 src = editentry_lookup(name);
204 case 'i': /* Byte-sized integral type. */
205 case 'b': /* Bit-sized integral types. */
207 return (src->value.ivalue);
210 case 'c': /* Character array. */
211 case 'z': /* Null-padded string. */
212 return ((intptr_t)src->value.svalue);
219 return (0); /* This should never happen. */
222 static struct editentry *
223 editentry_lookup(char *name)
225 struct editentry *scan;
227 assert(name != NULL);
229 STAILQ_FOREACH(scan, &editlist, link) {
230 if (strcasecmp(scan->name, name) == 0)
234 /* Not found during list traversal. */
239 editentry_set(char *name, char *newvalue, int editonly)
241 struct editentry *dest; /* Modepage entry to update. */
242 char *cval; /* Pointer to new string value. */
243 char *convertend; /* End-of-conversion pointer. */
244 int ival; /* New integral value. */
245 int resolution; /* Resolution in bits for integer conversion. */
248 * Macro to determine the maximum value of the given size for the current
250 * XXX Lovely x86's optimize out the case of shifting by 32 and gcc doesn't
251 * currently workaround it (even for int64's), so we have to kludge it.
253 #define RESOLUTION_MAX(size) ((resolution * (size) == 32)? \
254 0xffffffff: (1 << (resolution * (size))) - 1)
256 assert(newvalue != NULL);
257 if (*newvalue == '\0')
258 return (0); /* Nothing to do. */
260 if ((dest = editentry_lookup(name)) == NULL)
262 if (!dest->editable && editonly)
265 switch (dest->type) {
266 case 'i': /* Byte-sized integral type. */
267 case 'b': /* Bit-sized integral types. */
269 /* Convert the value string to an integer. */
270 resolution = (dest->type == 'i')? 8: 1;
271 ival = (int)strtol(newvalue, &convertend, 0);
272 if (*convertend != '\0')
274 if (ival > RESOLUTION_MAX(dest->size) || ival < 0) {
275 int newival = (ival < 0)? 0: RESOLUTION_MAX(dest->size);
276 warnx("value %d is out of range for entry %s; clipping "
277 "to %d", ival, name, newival);
280 if (dest->value.ivalue != ival)
281 editlist_changed = 1;
282 dest->value.ivalue = ival;
285 case 'c': /* Character array. */
286 case 'z': /* Null-padded string. */
287 if ((cval = malloc(dest->size + 1)) == NULL)
289 bzero(cval, dest->size + 1);
290 strncpy(cval, newvalue, dest->size);
291 if (dest->type == 'z') {
292 /* Convert trailing spaces to nulls. */
295 for (convertend = cval + dest->size;
296 convertend >= cval; convertend--) {
297 if (*convertend == ' ')
299 else if (*convertend != '\0')
303 if (strncmp(dest->value.svalue, cval, dest->size) == 0) {
304 /* Nothing changed, free the newly allocated string. */
308 if (dest->value.svalue != NULL) {
309 /* Free the current string buffer. */
310 free(dest->value.svalue);
311 dest->value.svalue = NULL;
313 dest->value.svalue = cval;
314 editlist_changed = 1;
322 #undef RESOLUTION_MAX
326 nameentry_create(int pagenum, char *name) {
327 struct pagename *newentry;
329 if (pagenum < 0 || name == NULL || name[0] == '\0')
332 /* Allocate memory for the new entry and a copy of the entry name. */
333 if ((newentry = malloc(sizeof(struct pagename))) == NULL ||
334 (newentry->name = strdup(name)) == NULL)
337 /* Trim any trailing whitespace for the page name. */
338 RTRIM(newentry->name);
340 newentry->pagenum = pagenum;
341 SLIST_INSERT_HEAD(&namelist, newentry, link);
344 static struct pagename *
345 nameentry_lookup(int pagenum) {
346 struct pagename *scan;
348 SLIST_FOREACH(scan, &namelist, link) {
349 if (pagenum == scan->pagenum)
353 /* Not found during list traversal. */
358 load_format(char *pagedb_path, int page)
361 char str_pagenum[MAX_PAGENUM_LEN];
362 char str_pagename[MAX_PAGENAME_LEN];
364 int depth; /* Quoting depth. */
367 enum { LOCATE, PAGENAME, PAGEDEF } state;
370 #define SETSTATE_LOCATE do { \
371 str_pagenum[0] = '\0'; \
372 str_pagename[0] = '\0'; \
377 #define SETSTATE_PAGENAME do { \
378 str_pagename[0] = '\0'; \
382 #define SETSTATE_PAGEDEF do { \
387 #define UPDATE_LINENO do { \
392 #define BUFFERFULL(buffer) (strlen(buffer) + 1 >= sizeof(buffer))
394 if ((pagedb = fopen(pagedb_path, "r")) == NULL)
397 SLIST_INIT(&namelist);
403 while ((c = fgetc(pagedb)) != EOF) {
405 /* Keep a line count to make error messages more useful. */
408 /* Skip over comments anywhere in the mode database. */
412 } while (c != '\n' && c != EOF);
417 /* Strip out newline characters. */
421 /* Keep track of the nesting depth for braces. */
422 if (c == PAGEDEF_START)
424 else if (c == PAGEDEF_END) {
427 errx(EX_OSFILE, "%s:%d: %s", pagedb_path,
428 lineno, "mismatched bracket");
435 * Locate the page the user is interested in, skipping
439 /* Ignore all whitespace between pages. */
441 } else if (depth == 0 && c == PAGEENTRY_END) {
443 * A page entry terminator will reset page
444 * scanning (useful for assigning names to
445 * modes without providing a mode definition).
447 /* Record the name of this page. */
448 pagenum = strtol(str_pagenum, NULL, 0);
449 nameentry_create(pagenum, str_pagename);
451 } else if (depth == 0 && c == PAGENAME_START) {
453 } else if (c == PAGEDEF_START) {
454 pagenum = strtol(str_pagenum, NULL, 0);
456 /* Record the name of this page. */
457 nameentry_create(pagenum, str_pagename);
459 * Only record the format if this is
460 * the page we are interested in.
462 if (page == pagenum && !found)
465 } else if (c == PAGEDEF_END) {
466 /* Reset the processor state. */
468 } else if (depth == 0 && ! BUFFERFULL(str_pagenum)) {
469 strncat(str_pagenum, &c, 1);
470 } else if (depth == 0) {
471 errx(EX_OSFILE, "%s:%d: %s %d %s", pagedb_path,
472 lineno, "page identifier exceeds",
473 sizeof(str_pagenum) - 1, "characters");
478 if (c == PAGENAME_END) {
480 * Return to LOCATE state without resetting the
481 * page number buffer.
484 } else if (! BUFFERFULL(str_pagename)) {
485 strncat(str_pagename, &c, 1);
487 errx(EX_OSFILE, "%s:%d: %s %d %s", pagedb_path,
488 lineno, "page name exceeds",
489 sizeof(str_pagenum) - 1, "characters");
495 * Transfer the page definition into a format buffer
496 * suitable for use with CDB encoding/decoding routines.
501 } else if (! BUFFERFULL(format)) {
502 strncat(format, &c, 1);
504 errx(EX_OSFILE, "%s:%d: %s %d %s", pagedb_path,
505 lineno, "page definition exceeds",
506 sizeof(format) - 1, "characters");
514 /* Repeat processing loop with next character. */
518 err(EX_OSFILE, "%s", pagedb_path);
520 /* Close the SCSI page database. */
523 if (!found) /* Never found a matching page. */
530 editlist_populate(struct cam_device *device, int modepage, int page_control,
531 int dbd, int retries, int timeout)
533 u_int8_t data[MAX_COMMAND_SIZE];/* Buffer to hold sense data. */
534 u_int8_t *mode_pars; /* Pointer to modepage params. */
535 struct scsi_mode_header_6 *mh; /* Location of mode header. */
536 struct scsi_mode_page_header *mph;
538 STAILQ_INIT(&editlist);
540 /* Fetch changeable values; use to build initial editlist. */
541 mode_sense(device, modepage, 1, dbd, retries, timeout, data,
544 mh = (struct scsi_mode_header_6 *)data;
545 mph = MODE_PAGE_HEADER(mh);
546 mode_pars = MODE_PAGE_DATA(mph);
548 /* Decode the value data, creating edit_entries for each value. */
549 buff_decode_visit(mode_pars, mh->data_length, format,
550 editentry_create, 0);
552 /* Fetch the current/saved values; use to set editentry values. */
553 mode_sense(device, modepage, page_control, dbd, retries, timeout, data,
555 buff_decode_visit(mode_pars, mh->data_length, format,
556 editentry_update, 0);
560 editlist_save(struct cam_device *device, int modepage, int page_control,
561 int dbd, int retries, int timeout)
563 u_int8_t data[MAX_COMMAND_SIZE];/* Buffer to hold sense data. */
564 u_int8_t *mode_pars; /* Pointer to modepage params. */
565 struct scsi_mode_header_6 *mh; /* Location of mode header. */
566 struct scsi_mode_page_header *mph;
568 /* Make sure that something changed before continuing. */
569 if (! editlist_changed)
573 * Preload the CDB buffer with the current mode page data.
574 * XXX If buff_encode_visit would return the number of bytes encoded
575 * we *should* use that to build a header from scratch. As it is
576 * now, we need mode_sense to find out the page length.
578 mode_sense(device, modepage, page_control, dbd, retries, timeout, data,
581 /* Initial headers & offsets. */
582 mh = (struct scsi_mode_header_6 *)data;
583 mph = MODE_PAGE_HEADER(mh);
584 mode_pars = MODE_PAGE_DATA(mph);
586 /* Encode the value data to be passed back to the device. */
587 buff_encode_visit(mode_pars, mh->data_length, format,
590 /* Eliminate block descriptors. */
591 bcopy(mph, ((u_int8_t *)mh) + sizeof(*mh),
592 sizeof(*mph) + mph->page_length);
594 /* Recalculate headers & offsets. */
595 mh->blk_desc_len = 0; /* No block descriptors. */
596 mh->dev_spec = 0; /* Clear device-specific parameters. */
597 mph = MODE_PAGE_HEADER(mh);
598 mode_pars = MODE_PAGE_DATA(mph);
600 mph->page_code &= SMS_PAGE_CODE;/* Isolate just the page code. */
601 mh->data_length = 0; /* Reserved for MODE SELECT command. */
604 * Write the changes back to the device. If the user editted control
605 * page 3 (saved values) then request the changes be permanently
609 (page_control << PAGE_CTRL_SHIFT == SMS_PAGE_CTRL_SAVED),
610 retries, timeout, (u_int8_t *)mh,
611 sizeof(*mh) + mh->blk_desc_len + sizeof(*mph) + mph->page_length);
615 modepage_write(FILE *file, int editonly)
617 struct editentry *scan;
620 STAILQ_FOREACH(scan, &editlist, link) {
621 if (scan->editable || !editonly) {
623 if (scan->type == 'c' || scan->type == 'z') {
624 fprintf(file, "%s: %s\n", scan->name,
627 fprintf(file, "%s: %d\n", scan->name,
636 modepage_read(FILE *file)
638 char *buffer; /* Pointer to dynamic line buffer. */
639 char *line; /* Pointer to static fgetln buffer. */
640 char *name; /* Name portion of the line buffer. */
641 char *value; /* Value portion of line buffer. */
642 int length; /* Length of static fgetln buffer. */
644 #define ABORT_READ(message, param) do { \
645 warnx(message, param); \
650 while ((line = fgetln(file, &length)) != NULL) {
651 /* Trim trailing whitespace (including optional newline). */
652 while (length > 0 && isspace(line[length - 1]))
655 /* Allocate a buffer to hold the line + terminating null. */
656 if ((buffer = malloc(length + 1)) == NULL)
658 memcpy(buffer, line, length);
659 buffer[length] = '\0';
661 /* Strip out comments. */
662 if ((value = strchr(buffer, '#')) != NULL)
665 /* The name is first in the buffer. Trim whitespace.*/
668 while (isspace(*name))
671 /* Skip empty lines. */
672 if (strlen(name) == 0)
675 /* The name ends at the colon; the value starts there. */
676 if ((value = strrchr(buffer, ':')) == NULL)
677 ABORT_READ("no value associated with %s", name);
678 *value = '\0'; /* Null-terminate name. */
679 value++; /* Value starts afterwards. */
681 /* Trim leading and trailing whitespace. */
683 while (isspace(*value))
686 /* Make sure there is a value left. */
687 if (strlen(value) == 0)
688 ABORT_READ("no value associated with %s", name);
690 /* Update our in-memory copy of the modepage entry value. */
691 if (editentry_set(name, value, 1) != 0) {
692 if (errno == ENOENT) {
693 /* No entry by the name. */
694 ABORT_READ("no such modepage entry \"%s\"",
696 } else if (errno == EINVAL) {
698 ABORT_READ("Invalid value for entry \"%s\"",
700 } else if (errno == ERANGE) {
701 /* Value out of range for entry type. */
702 ABORT_READ("value out of range for %s", name);
703 } else if (errno == EPERM) {
704 /* Entry is not editable; not fatal. */
705 warnx("modepage entry \"%s\" is read-only; "
712 return (ferror(file)? -1: 0);
725 if (!isatty(fileno(stdin))) {
726 /* Not a tty, read changes from stdin. */
727 modepage_read(stdin);
731 /* Lookup editor to invoke. */
732 if ((editor = getenv("EDITOR")) == NULL)
733 editor = DEFAULT_EDITOR;
735 /* Create temp file for editor to modify. */
736 if ((fd = mkstemp(edit_path)) == -1)
737 errx(EX_CANTCREAT, "mkstemp failed");
739 atexit(cleanup_editfile);
741 if ((edit_file = fdopen(fd, "w")) == NULL)
742 err(EX_NOINPUT, "%s", edit_path);
744 written = modepage_write(edit_file, 1);
750 warnx("no editable entries");
756 * Allocate memory to hold the command line (the 2 extra characters
757 * are to hold the argument separator (a space), and the terminating
760 commandline = malloc(strlen(editor) + strlen(edit_path) + 2);
761 if (commandline == NULL)
763 sprintf(commandline, "%s %s", editor, edit_path);
765 /* Invoke the editor on the temp file. */
766 if (system(commandline) == -1)
767 err(EX_UNAVAILABLE, "could not invoke %s", editor);
770 if ((edit_file = fopen(edit_path, "r")) == NULL)
771 err(EX_NOINPUT, "%s", edit_path);
773 /* Read any changes made to the temp file. */
774 modepage_read(edit_file);
780 modepage_dump(struct cam_device *device, int page, int page_control, int dbd,
781 int retries, int timeout)
783 u_int8_t data[MAX_COMMAND_SIZE];/* Buffer to hold sense data. */
784 u_int8_t *mode_pars; /* Pointer to modepage params. */
785 struct scsi_mode_header_6 *mh; /* Location of mode header. */
786 struct scsi_mode_page_header *mph;
787 int index; /* Index for scanning mode params. */
789 mode_sense(device, page, page_control, dbd, retries, timeout, data,
792 mh = (struct scsi_mode_header_6 *)data;
793 mph = MODE_PAGE_HEADER(mh);
794 mode_pars = MODE_PAGE_DATA(mph);
796 /* Print the raw mode page data with newlines each 8 bytes. */
797 for (index = 0; index < mph->page_length; index++) {
798 printf("%02x%c",mode_pars[index],
799 (((index + 1) % 8) == 0) ? '\n' : ' ');
805 cleanup_editfile(void)
807 if (edit_file == NULL)
809 if (fclose(edit_file) != 0 || unlink(edit_path) != 0)
810 warn("%s", edit_path);
815 mode_edit(struct cam_device *device, int page, int page_control, int dbd,
816 int edit, int binary, int retry_count, int timeout)
818 char *pagedb_path; /* Path to modepage database. */
821 errx(EX_USAGE, "cannot edit in binary mode.");
824 if ((pagedb_path = getenv("SCSI_MODES")) == NULL)
825 pagedb_path = DEFAULT_SCSI_MODE_DB;
827 if (load_format(pagedb_path, page) != 0 && (edit || verbose)) {
828 if (errno == ENOENT) {
829 /* Modepage database file not found. */
830 warn("cannot open modepage database \"%s\"",
832 } else if (errno == ESRCH) {
833 /* Modepage entry not found in database. */
834 warnx("modepage %d not found in database"
835 "\"%s\"", page, pagedb_path);
837 /* We can recover in display mode, otherwise we exit. */
839 warnx("reverting to binary display only");
845 editlist_populate(device, page, page_control, dbd, retry_count,
850 if (page_control << PAGE_CTRL_SHIFT != SMS_PAGE_CTRL_CURRENT &&
851 page_control << PAGE_CTRL_SHIFT != SMS_PAGE_CTRL_SAVED)
852 errx(EX_USAGE, "it only makes sense to edit page 0 "
853 "(current) or page 3 (saved values)");
855 editlist_save(device, page, page_control, dbd, retry_count,
857 } else if (binary || STAILQ_EMPTY(&editlist)) {
858 /* Display without formatting information. */
859 modepage_dump(device, page, page_control, dbd, retry_count,
862 /* Display with format. */
863 modepage_write(stdout, 0);
868 mode_list(struct cam_device *device, int page_control, int dbd,
869 int retry_count, int timeout)
871 u_int8_t data[MAX_COMMAND_SIZE];/* Buffer to hold sense data. */
872 u_int8_t *mode_pars; /* Pointer to modepage params. */
873 struct scsi_mode_header_6 *mh; /* Location of mode header. */
874 struct scsi_mode_page_header *mph;
875 struct pagename *nameentry;
879 if ((pagedb_path = getenv("SCSI_MODES")) == NULL)
880 pagedb_path = DEFAULT_SCSI_MODE_DB;
882 if (load_format(pagedb_path, 0) != 0 && verbose && errno == ENOENT) {
883 /* Modepage database file not found. */
884 warn("cannot open modepage database \"%s\"", pagedb_path);
887 /* Build the list of all mode pages by querying the "all pages" page. */
888 mode_sense(device, SMS_ALL_PAGES_PAGE, page_control, dbd, retry_count,
889 timeout, data, sizeof(data));
891 mh = (struct scsi_mode_header_6 *)data;
892 len = mh->blk_desc_len; /* Skip block descriptors. */
893 /* Iterate through the pages in the reply. */
894 while (len < mh->data_length) {
895 /* Locate the next mode page header. */
896 mph = (struct scsi_mode_page_header *)
897 ((intptr_t)mh + sizeof(*mh) + len);
898 mode_pars = MODE_PAGE_DATA(mph);
900 mph->page_code &= SMS_PAGE_CODE;
901 nameentry = nameentry_lookup(mph->page_code);
903 if (nameentry == NULL || nameentry->name == NULL)
904 printf("0x%02x\n", mph->page_code);
906 printf("0x%02x\t%s\n", mph->page_code,
908 len += mph->page_length + sizeof(*mph);