2 libparted - a library for manipulating disk partitions
3 Copyright (C) 1999 - 2005 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 /* we need this for O_DIRECT on Linux, it's in the glibc headers */
21 /* ... and for posix_memalign() */
24 #define PROC_DEVICES_BUFSIZ 16384
28 #include <parted/parted.h>
29 #include <parted/debug.h>
30 #include <parted/linux.h>
40 #include <sys/ioctl.h>
42 #include <sys/types.h>
43 #include <sys/utsname.h> /* for uname() */
44 #include <scsi/scsi.h>
45 #ifdef ENABLE_DEVICE_MAPPER
46 #include <libdevmapper.h>
53 # define _(String) dgettext (PACKAGE, String)
55 # define _(String) (String)
56 #endif /* ENABLE_NLS */
58 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
61 #define __NR__llseek 140
64 #ifndef SCSI_IOCTL_SEND_COMMAND
65 #define SCSI_IOCTL_SEND_COMMAND 1
68 /* from <linux/hdreg.h> */
69 #define HDIO_GETGEO 0x0301 /* get device geometry */
70 #define HDIO_GET_IDENTITY 0x030d /* get IDE identification info */
72 #include <parted/vtoc.h>
73 #include <parted/fdasd.h>
75 #if defined(O_DIRECT) && (!defined(__s390__) || !defined(__s390x__))
76 #define RD_MODE (O_RDONLY | O_DIRECT)
77 #define WR_MODE (O_WRONLY | O_DIRECT)
78 #define RW_MODE (O_RDWR | O_DIRECT)
80 #define RD_MODE (O_RDONLY)
81 #define WR_MODE (O_WRONLY)
82 #define RW_MODE (O_RDWR)
87 unsigned char sectors;
88 unsigned short cylinders;
92 struct ata7_sectinfo {
99 /* structure returned by HDIO_GET_IDENTITY, as per ANSI ATA2 rev.2f spec */
101 unsigned short config; /* lots of obsolete bit flags */
102 unsigned short cyls; /* "physical" cyls */
103 unsigned short reserved2; /* reserved (word 2) */
104 unsigned short heads; /* "physical" heads */
105 unsigned short track_bytes; /* unformatted bytes per track */
106 unsigned short sector_bytes; /* unformatted bytes per sector */
107 unsigned short sectors; /* "physical" sectors per track */
108 unsigned short vendor0; /* vendor unique */
109 unsigned short vendor1; /* vendor unique */
110 unsigned short vendor2; /* vendor unique */
111 unsigned char serial_no[20]; /* 0 = not_specified */
112 unsigned short buf_type;
113 unsigned short buf_size; /* 512 byte increments;
115 unsigned short ecc_bytes; /* for r/w long cmds;
117 unsigned char fw_rev[8]; /* 0 = not_specified */
118 char model[40]; /* 0 = not_specified */
119 unsigned char max_multsect; /* 0=not_implemented */
120 unsigned char vendor3; /* vendor unique */
121 unsigned short dword_io; /* 0=not_implemented; 1=implemented */
122 unsigned char vendor4; /* vendor unique */
123 unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw
125 unsigned short reserved50; /* reserved (word 50) */
126 unsigned char vendor5; /* vendor unique */
127 unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */
128 unsigned char vendor6; /* vendor unique */
129 unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */
130 unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */
131 unsigned short cur_cyls; /* logical cylinders */
132 unsigned short cur_heads; /* logical heads */
133 unsigned short cur_sectors; /* logical sectors per track */
134 unsigned short cur_capacity0; /* logical total sectors on drive */
135 unsigned short cur_capacity1; /* (2 words, misaligned int) */
136 unsigned char multsect; /* current multiple sector count */
137 unsigned char multsect_valid; /* when (bit0==1) multsect is ok */
138 unsigned int lba_capacity; /* total number of sectors */
139 unsigned short dma_1word; /* single-word dma info */
140 unsigned short dma_mword; /* multiple-word dma info */
141 unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */
142 unsigned short eide_dma_min; /* min mword dma cycle time (ns) */
143 unsigned short eide_dma_time; /* recommended mword dma cycle
145 unsigned short eide_pio; /* min cycle time (ns), no IORDY */
146 unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */
147 unsigned short words69_70[2]; /* reserved words 69-70 */
148 /* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
149 unsigned short words71_74[4]; /* reserved words 71-74 */
150 unsigned short queue_depth; /* */
151 unsigned short words76_79[4]; /* reserved words 76-79 */
152 unsigned short major_rev_num; /* */
153 unsigned short minor_rev_num; /* */
154 unsigned short command_set_1; /* bits 0:Smart 1:Security 2:Removable
156 unsigned short command_set_2; /* bits 14:Smart Enabled 13:0 zero */
157 unsigned short cfsse; /* command set-feature supported
159 unsigned short cfs_enable_1; /* command set-feature enabled */
160 unsigned short cfs_enable_2; /* command set-feature enabled */
161 unsigned short csf_default; /* command set-feature default */
162 unsigned short dma_ultra; /* */
163 unsigned short word89; /* reserved (word 89) */
164 unsigned short word90; /* reserved (word 90) */
165 unsigned short CurAPMvalues; /* current APM values */
166 unsigned short word92; /* reserved (word 92) */
167 unsigned short hw_config; /* hardware config */
168 unsigned short words94_105[12];/* reserved words 94-105 */
169 struct ata7_sectinfo ata7_sectinfo; /* ATAPI/ATA7 physical and logical
171 unsigned short words107_116[10];/* reserved words 107-116 */
172 unsigned int logical_sectsize;/* ATAPI/ATA7 logical sector size */
173 unsigned short words119_125[7];/* reserved words 119-125 */
174 unsigned short last_lun; /* reserved (word 126) */
175 unsigned short word127; /* reserved (word 127) */
176 unsigned short dlf; /* device lock function
178 * 8 security level 1:max 0:high
187 unsigned short csfo; /* current set features options
194 unsigned short words130_155[26];/* reserved vendor words 130-155 */
195 unsigned short word156;
196 unsigned short words157_159[3]; /* reserved vendor words 157-159 */
197 unsigned short words160_255[95];/* reserved words 160-255 */
200 /* from <linux/fs.h> */
201 #define BLKRRPART _IO(0x12,95) /* re-read partition table */
202 #define BLKGETSIZE _IO(0x12,96) /* return device size */
203 #define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */
204 #define BLKSSZGET _IO(0x12,104) /* get block device sector size */
205 #define BLKGETLASTSECT _IO(0x12,108) /* get last sector of block device */
206 #define BLKSETLASTSECT _IO(0x12,109) /* set last sector of block device */
208 /* return device size in bytes (u64 *arg) */
209 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
211 struct blkdev_ioctl_param {
213 size_t content_length;
214 char * block_contents;
217 /* from <linux/major.h> */
219 #define IDE1_MAJOR 22
220 #define IDE2_MAJOR 33
221 #define IDE3_MAJOR 34
222 #define IDE4_MAJOR 56
223 #define IDE5_MAJOR 57
224 #define SCSI_CDROM_MAJOR 11
225 #define SCSI_DISK0_MAJOR 8
226 #define SCSI_DISK1_MAJOR 65
227 #define SCSI_DISK2_MAJOR 66
228 #define SCSI_DISK3_MAJOR 67
229 #define SCSI_DISK4_MAJOR 68
230 #define SCSI_DISK5_MAJOR 69
231 #define SCSI_DISK6_MAJOR 70
232 #define SCSI_DISK7_MAJOR 71
233 #define COMPAQ_SMART2_MAJOR 72
234 #define COMPAQ_SMART2_MAJOR1 73
235 #define COMPAQ_SMART2_MAJOR2 74
236 #define COMPAQ_SMART2_MAJOR3 75
237 #define COMPAQ_SMART2_MAJOR4 76
238 #define COMPAQ_SMART2_MAJOR5 77
239 #define COMPAQ_SMART2_MAJOR6 78
240 #define COMPAQ_SMART2_MAJOR7 79
241 #define COMPAQ_SMART_MAJOR 104
242 #define COMPAQ_SMART_MAJOR1 105
243 #define COMPAQ_SMART_MAJOR2 106
244 #define COMPAQ_SMART_MAJOR3 107
245 #define COMPAQ_SMART_MAJOR4 108
246 #define COMPAQ_SMART_MAJOR5 109
247 #define COMPAQ_SMART_MAJOR6 110
248 #define COMPAQ_SMART_MAJOR7 111
249 #define DAC960_MAJOR 48
250 #define ATARAID_MAJOR 114
251 #define I2O_MAJOR1 80
252 #define I2O_MAJOR2 81
253 #define I2O_MAJOR3 82
254 #define I2O_MAJOR4 83
255 #define I2O_MAJOR5 84
256 #define I2O_MAJOR6 85
257 #define I2O_MAJOR7 86
258 #define I2O_MAJOR8 87
260 #define DASD_MAJOR 94
261 #define VIODASD_MAJOR 112
262 #define SX8_MAJOR1 160
263 #define SX8_MAJOR2 161
265 #define SCSI_BLK_MAJOR(M) ( \
266 (M) == SCSI_DISK0_MAJOR \
267 || (M) == SCSI_CDROM_MAJOR \
268 || ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
270 static char* _device_get_part_path (PedDevice* dev, int num);
271 static int _partition_is_mounted_by_path (const char* path);
274 _is_ide_major (int major)
291 _is_cpqarray_major (int major)
293 return ((COMPAQ_SMART2_MAJOR <= major && major <= COMPAQ_SMART2_MAJOR7)
294 || (COMPAQ_SMART_MAJOR <= major && major <= COMPAQ_SMART_MAJOR7));
298 _is_i2o_major (int major)
300 return (I2O_MAJOR1 <= major && major <= I2O_MAJOR8);
304 _is_sx8_major (int major)
306 return (SX8_MAJOR1 <= major && major <= SX8_MAJOR2);
309 #ifdef ENABLE_DEVICE_MAPPER
311 readFD (int fd, char **buf)
314 size_t size = PROC_DEVICES_BUFSIZ;
317 *buf = malloc (size * sizeof (char));
323 p = &(*buf) [filesize];
324 s = read (fd, p, PROC_DEVICES_BUFSIZ);
325 /* exit if there is an error or EOF is reached */
330 *buf = realloc (*buf, size);
333 if (filesize == 0 && s < 0) {
338 /* there is always some excess memory left unused */
339 *buf = realloc (*buf, filesize+1);
340 (*buf)[filesize] = '\0';
347 _is_dm_major (int major)
357 fd = open ("/proc/devices", O_RDONLY);
361 if (readFD(fd, &buf) < 0) {
367 end = strchr(line, '\n');
376 if (!strncmp(line, "Block devices:", 14))
381 name = strrchr(line, ' ');
382 if (!name || strcmp(name+1, "device-mapper"))
385 maj = strtol(line, &name, 10);
395 end = strchr(line, '\n');
404 _device_stat (PedDevice* dev, struct stat * dev_stat)
406 PED_ASSERT (dev != NULL, return 0);
407 PED_ASSERT (!dev->external_mode, return 0);
410 if (!stat (dev->path, dev_stat)) {
413 if (ped_exception_throw (
415 PED_EXCEPTION_RETRY_CANCEL,
416 _("Could not stat device %s - %s."),
419 != PED_EXCEPTION_RETRY)
426 _device_probe_type (PedDevice* dev)
428 struct stat dev_stat;
431 PedExceptionOption ex_status;
433 if (!_device_stat (dev, &dev_stat))
436 if (!S_ISBLK(dev_stat.st_mode)) {
437 dev->type = PED_DEVICE_FILE;
441 dev_major = major (dev_stat.st_rdev);
442 dev_minor = minor (dev_stat.st_rdev);
444 if (SCSI_BLK_MAJOR (dev_major) && (dev_minor % 0x10 == 0)) {
445 dev->type = PED_DEVICE_SCSI;
446 } else if (_is_ide_major (dev_major) && (dev_minor % 0x40 == 0)) {
447 dev->type = PED_DEVICE_IDE;
448 } else if (dev_major == DAC960_MAJOR && (dev_minor % 0x8 == 0)) {
449 dev->type = PED_DEVICE_DAC960;
450 } else if (dev_major == ATARAID_MAJOR && (dev_minor % 0x10 == 0)) {
451 dev->type = PED_DEVICE_ATARAID;
452 } else if (dev_major == DASD_MAJOR && (dev_minor % 0x4 == 0)) {
453 dev->type = PED_DEVICE_DASD;
454 } else if (dev_major == VIODASD_MAJOR && (dev_minor % 0x8 == 0)) {
455 dev->type = PED_DEVICE_VIODASD;
456 } else if (_is_sx8_major(dev_major) && (dev_minor % 0x20 == 0)) {
457 dev->type = PED_DEVICE_SX8;
458 } else if (_is_i2o_major (dev_major) && (dev_minor % 0x10 == 0)) {
459 dev->type = PED_DEVICE_I2O;
460 } else if (_is_cpqarray_major (dev_major) && (dev_minor % 0x10 == 0)) {
461 dev->type = PED_DEVICE_CPQARRAY;
462 } else if (dev_major == UBD_MAJOR && (dev_minor % 0x10 == 0)) {
463 dev->type = PED_DEVICE_UBD;
464 #ifdef ENABLE_DEVICE_MAPPER
465 } else if (_is_dm_major(dev_major)) {
466 dev->type = PED_DEVICE_DM;
469 dev->type = PED_DEVICE_UNKNOWN;
476 _get_linux_version ()
478 static int kver = -1;
490 if (sscanf (uts.release, "%u.%u.%u", &major, &minor, &teeny) != 3)
493 return kver = KERNEL_VERSION (major, minor, teeny);
499 static int have_devfs = -1;
502 if (have_devfs != -1)
505 /* the presence of /dev/.devfsd implies that DevFS is active */
506 if (stat("/dev/.devfsd", &sb) < 0)
507 return have_devfs = 0;
509 return have_devfs = S_ISCHR(sb.st_mode) ? 1 : 0;
513 _device_set_sector_size (PedDevice* dev)
515 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
518 dev->sector_size = PED_SECTOR_SIZE_DEFAULT;
519 dev->phys_sector_size = PED_SECTOR_SIZE_DEFAULT;
521 PED_ASSERT (dev->open_count, return);
523 if (_get_linux_version() < KERNEL_VERSION (2,3,0)) {
524 dev->sector_size = PED_SECTOR_SIZE_DEFAULT;
528 if (ioctl (arch_specific->fd, BLKSSZGET, §or_size)) {
529 ped_exception_throw (
530 PED_EXCEPTION_WARNING,
532 _("Could not determine sector size for %s: %s.\n"
533 "Using the default sector size (%lld)."),
534 dev->path, strerror (errno), PED_SECTOR_SIZE_DEFAULT);
536 dev->sector_size = (long long)sector_size;
539 /* Return PED_SECTOR_SIZE_DEFAULT for DASDs. */
540 if (dev->type == PED_DEVICE_DASD) {
541 dev->sector_size = PED_SECTOR_SIZE_DEFAULT;
544 if (dev->sector_size != PED_SECTOR_SIZE_DEFAULT) {
545 ped_exception_throw (
546 PED_EXCEPTION_WARNING,
548 _("Device %s has a logical sector size of %lld. Not "
549 "all parts of GNU Parted support this at the moment, "
550 "and the working code is HIGHLY EXPERIMENTAL.\n"),
551 dev->path, dev->sector_size);
556 _kernel_has_blkgetsize64(void)
558 int version = _get_linux_version();
560 if (version >= KERNEL_VERSION (2,5,4)) return 1;
561 if (version < KERNEL_VERSION (2,5,0) &&
562 version >= KERNEL_VERSION (2,4,18)) return 1;
566 /* TODO: do a binary search if BLKGETSIZE doesn't work?! */
568 _device_get_length (PedDevice* dev)
571 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
575 PED_ASSERT (dev->open_count > 0, return 0);
576 PED_ASSERT (dev->sector_size % 512 == 0, return 0);
578 if (_kernel_has_blkgetsize64()) {
579 if (ioctl(arch_specific->fd, BLKGETSIZE64, &bytes) == 0) {
580 return bytes / dev->sector_size;
584 if (ioctl (arch_specific->fd, BLKGETSIZE, &size)) {
585 ped_exception_throw (
587 PED_EXCEPTION_CANCEL,
588 _("Unable to determine the size of %s (%s)."),
598 _device_probe_geometry (PedDevice* dev)
600 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
601 struct stat dev_stat;
602 struct hd_geometry geometry;
604 if (!_device_stat (dev, &dev_stat))
606 PED_ASSERT (S_ISBLK (dev_stat.st_mode), return 0);
608 _device_set_sector_size (dev);
610 dev->length = _device_get_length (dev);
614 /* The GETGEO ioctl is no longer useful (as of linux 2.6.x). We could
615 * still use it in 2.4.x, but this is contentious. Perhaps we should
617 dev->bios_geom.sectors = 63;
618 dev->bios_geom.heads = 255;
619 dev->bios_geom.cylinders
620 = dev->length / (63 * 255);
622 /* FIXME: what should we put here? (TODO: discuss on linux-kernel) */
623 if (!ioctl (arch_specific->fd, HDIO_GETGEO, &geometry)
624 && geometry.sectors && geometry.heads) {
625 dev->hw_geom.sectors = geometry.sectors;
626 dev->hw_geom.heads = geometry.heads;
627 dev->hw_geom.cylinders
628 = dev->length / (dev->hw_geom.heads
629 * dev->hw_geom.sectors);
631 dev->hw_geom = dev->bios_geom;
638 strip_name(char* str)
643 for (i = 0; str[i] != 0; i++) {
644 if (!isspace (str[i])
645 || (isspace (str[i]) && !isspace (str[i+1]) && str[i+1])) {
655 init_ide (PedDevice* dev)
657 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
658 struct stat dev_stat;
660 struct hd_driveid hdi;
661 PedExceptionOption ex_status;
663 int sector_multiplier = 0;
665 if (!_device_stat (dev, &dev_stat))
668 dev_major = major (dev_stat.st_rdev);
670 if (!ped_device_open (dev))
673 if (ioctl (arch_specific->fd, HDIO_GET_IDENTITY, &hdi)) {
674 ex_status = ped_exception_throw (
675 PED_EXCEPTION_WARNING,
676 PED_EXCEPTION_IGNORE_CANCEL,
677 _("Could not get identity of device %s - %s"),
678 dev->path, strerror (errno));
680 case PED_EXCEPTION_CANCEL:
681 goto error_close_dev;
683 case PED_EXCEPTION_UNHANDLED:
684 ped_exception_catch ();
685 case PED_EXCEPTION_IGNORE:
686 dev->model = strdup(_("Generic IDE"));
689 /* hdi.model is not guaranteed to be NULL terminated */
690 memcpy (hdi_buf, hdi.model, 40);
692 dev->model = strip_name (hdi_buf);
694 if (!hdi.ata7_sectinfo.valid1 && hdi.ata7_sectinfo.valid2)
695 sector_multiplier = hdi.ata7_sectinfo.multiplier;
697 sector_multiplier = 1;
699 if (sector_multiplier != 1) {
700 ex_status = ped_exception_throw (
701 PED_EXCEPTION_WARNING,
702 PED_EXCEPTION_IGNORE_CANCEL,
703 _("Device %s has multiple (%d) logical sectors "
704 "per physical sector.\n"
705 "GNU Parted supports this EXPERIMENTALLY for "
706 "some special disk label/file system "
707 "combinations, e.g. GPT and ext2/3.\n"
708 "Please consult the web site for up-to-date "
710 dev->path, sector_multiplier);
713 case PED_EXCEPTION_CANCEL:
714 goto error_close_dev;
716 case PED_EXCEPTION_UNHANDLED:
717 ped_exception_catch ();
718 case PED_EXCEPTION_IGNORE:
723 /* XXX sector_size has not been set yet! */
724 /* dev->phys_sector_size = dev->sector_size
725 * sector_multiplier;*/
726 dev->phys_sector_size = PED_SECTOR_SIZE_DEFAULT;
729 if (!_device_probe_geometry (dev))
730 goto error_close_dev;
732 ped_device_close (dev);
736 ped_device_close (dev);
741 /* This function reads the /sys entry named "file" for device "dev". */
743 read_device_sysfs_file (PedDevice *dev, const char *file)
749 snprintf (name_buf, 127, "/sys/block/%s/device/%s",
750 basename (dev->path), file);
752 if ((f = fopen (name_buf, "r")) == NULL)
757 return strip_name (buf);
760 /* This function sends a query to a SCSI device for vendor and product
761 * information. It uses the deprecated SCSI_IOCTL_SEND_COMMAND to
765 scsi_query_product_info (PedDevice* dev, char **vendor, char **product)
767 /* The following are defined by the SCSI-2 specification. */
768 typedef struct _scsi_inquiry_cmd
771 uint8_t lun; /* bits 5-7 denote the LUN */
774 uint8_t alloc_length;
776 } __attribute__((packed)) scsi_inquiry_cmd_t;
778 typedef struct _scsi_inquiry_data
780 uint8_t peripheral_info;
782 uint8_t version_info;
784 uint8_t additional_length;
788 uint8_t vendor_id[8];
789 uint8_t product_id[16];
790 uint8_t product_revision[4];
791 uint8_t vendor_specific[20];
792 uint8_t _reserved3[40];
793 } __attribute__((packed)) scsi_inquiry_data_t;
802 scsi_inquiry_data_t out;
803 scsi_inquiry_cmd_t in;
807 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
813 memset (&arg, 0x00, sizeof(struct scsi_arg));
815 arg.outlen = sizeof(scsi_inquiry_data_t);
816 arg.data.in.op = INQUIRY;
817 arg.data.in.lun = dev->host << 5;
818 arg.data.in.alloc_length = sizeof(scsi_inquiry_data_t);
819 arg.data.in.page_code = 0;
820 arg.data.in.reserved = 0;
821 arg.data.in.control = 0;
823 if (ioctl (arch_specific->fd, SCSI_IOCTL_SEND_COMMAND, &arg) < 0)
826 memcpy (buf, arg.data.out.vendor_id, 8);
828 *vendor = strip_name (buf);
830 memcpy (buf, arg.data.out.product_id, 16);
832 *product = strip_name (buf);
837 /* This function provides the vendor and product name for a SCSI device.
838 * It supports both the modern /sys interface and direct queries
839 * via the deprecated ioctl, SCSI_IOCTL_SEND_COMMAND.
842 scsi_get_product_info (PedDevice* dev, char **vendor, char **product)
844 *vendor = read_device_sysfs_file (dev, "vendor");
845 *product = read_device_sysfs_file (dev, "model");
846 if (*vendor && *product)
849 return scsi_query_product_info (dev, vendor, product);
853 init_scsi (PedDevice* dev)
858 uint32_t host_unique_id;
861 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
865 if (!ped_device_open (dev))
868 if (ioctl (arch_specific->fd, SCSI_IOCTL_GET_IDLUN, &idlun) < 0) {
871 if (ped_exception_throw (
872 PED_EXCEPTION_ERROR, PED_EXCEPTION_IGNORE_CANCEL,
873 _("Error initialising SCSI device %s - %s"),
874 dev->path, strerror (errno))
875 != PED_EXCEPTION_IGNORE)
876 goto error_close_dev;
877 if (!_device_probe_geometry (dev))
878 goto error_close_dev;
879 ped_device_close (dev);
883 dev->host = idlun.host_unique_id;
884 dev->did = idlun.dev_id;
886 dev->model = (char*) ped_malloc (8 + 16 + 2);
888 goto error_close_dev;
890 if (scsi_get_product_info (dev, &vendor, &product)) {
891 sprintf (dev->model, "%.8s %.16s", vendor, product);
895 strcpy (dev->model, "Generic SCSI");
898 if (!_device_probe_geometry (dev))
899 goto error_close_dev;
901 ped_device_close (dev);
905 ped_device_close (dev);
911 init_file (PedDevice* dev)
913 struct stat dev_stat;
915 if (!_device_stat (dev, &dev_stat))
917 if (!ped_device_open (dev))
920 if (S_ISBLK(dev_stat.st_mode))
921 dev->length = _device_get_length (dev);
923 dev->length = dev_stat.st_size / 512;
924 if (dev->length <= 0) {
925 ped_exception_throw (
927 PED_EXCEPTION_CANCEL,
928 _("The device %s has zero length, and can't possibly "
929 "store a file system or partition table. Perhaps "
930 "you selected the wrong device?"),
932 goto error_close_dev;
935 ped_device_close (dev);
937 dev->bios_geom.cylinders = dev->length / 4 / 32;
938 dev->bios_geom.heads = 4;
939 dev->bios_geom.sectors = 32;
940 dev->hw_geom = dev->bios_geom;
941 dev->sector_size = PED_SECTOR_SIZE_DEFAULT;
942 dev->phys_sector_size = PED_SECTOR_SIZE_DEFAULT;
943 dev->model = strdup ("");
948 ped_device_close (dev);
954 init_dasd (PedDevice* dev, char* model_name)
956 struct stat dev_stat;
957 PedExceptionOption ex_status;
958 dasd_information_t dasd_info;
959 struct hd_geometry geo;
963 if (!_device_stat (dev, &dev_stat))
966 if (!ped_device_open (dev))
969 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
971 PED_ASSERT (S_ISBLK (dev_stat.st_mode), return 0);
973 _device_set_sector_size (dev);
974 if (!dev->sector_size)
975 goto error_close_dev;
977 dev->length = _device_get_length (dev);
979 goto error_close_dev;
981 if (!ioctl (arch_specific->fd, HDIO_GETGEO, &geo)) {
982 dev->hw_geom.sectors = geo.sectors;
983 dev->hw_geom.heads = geo.heads;
984 dev->hw_geom.cylinders = dev->length
985 / (dev->hw_geom.heads * dev->hw_geom.sectors)
986 / (dev->sector_size / PED_SECTOR_SIZE_DEFAULT);
987 dev->bios_geom = dev->hw_geom;
989 dev->bios_geom.sectors = 12;
990 dev->bios_geom.heads = 15;
991 dev->bios_geom.cylinders = dev->length
992 / (dev->hw_geom.heads * dev->hw_geom.sectors)
993 / (dev->sector_size / PED_SECTOR_SIZE_DEFAULT);
994 dev->hw_geom = dev->bios_geom;
997 dev->model = strdup (model_name);
999 ped_device_close (dev);
1003 ped_exception_throw ( PED_EXCEPTION_ERROR,
1004 PED_EXCEPTION_IGNORE_CANCEL,
1008 ped_device_close (dev);
1014 init_generic (PedDevice* dev, char* model_name)
1016 struct stat dev_stat;
1017 PedExceptionOption ex_status;
1019 if (!_device_stat (dev, &dev_stat))
1022 if (!ped_device_open (dev))
1025 ped_exception_fetch_all ();
1026 if (_device_probe_geometry (dev)) {
1027 ped_exception_leave_all ();
1029 /* hack to allow use of files, for testing */
1030 ped_exception_catch ();
1031 ped_exception_leave_all ();
1033 ex_status = ped_exception_throw (
1034 PED_EXCEPTION_WARNING,
1035 PED_EXCEPTION_IGNORE_CANCEL,
1036 _("Unable to determine geometry of "
1037 "file/device %s. You should not use Parted "
1038 "unless you REALLY know what you're doing!"),
1040 switch (ex_status) {
1041 case PED_EXCEPTION_CANCEL:
1042 goto error_close_dev;
1044 case PED_EXCEPTION_UNHANDLED:
1045 ped_exception_catch ();
1046 case PED_EXCEPTION_IGNORE:
1047 ; // just workaround for gcc 3.0
1050 /* what should we stick in here? */
1051 dev->length = dev_stat.st_size / PED_SECTOR_SIZE_DEFAULT;
1052 dev->bios_geom.cylinders = dev->length / 4 / 32;
1053 dev->bios_geom.heads = 4;
1054 dev->bios_geom.sectors = 32;
1055 dev->sector_size = PED_SECTOR_SIZE_DEFAULT;
1056 dev->phys_sector_size = PED_SECTOR_SIZE_DEFAULT;
1059 dev->model = strdup (model_name);
1061 ped_device_close (dev);
1065 ped_device_close (dev);
1071 linux_new (const char* path)
1075 PED_ASSERT (path != NULL, return NULL);
1077 dev = (PedDevice*) ped_malloc (sizeof (PedDevice));
1081 dev->path = strdup (path);
1083 goto error_free_dev;
1086 = (LinuxSpecific*) ped_malloc (sizeof (LinuxSpecific));
1087 if (!dev->arch_specific)
1088 goto error_free_path;
1090 dev->open_count = 0;
1092 dev->external_mode = 0;
1094 dev->boot_dirty = 0;
1096 if (!_device_probe_type (dev))
1097 goto error_free_arch_specific;
1099 switch (dev->type) {
1100 case PED_DEVICE_IDE:
1101 if (!init_ide (dev))
1102 goto error_free_arch_specific;
1105 case PED_DEVICE_SCSI:
1106 if (!init_scsi (dev))
1107 goto error_free_arch_specific;
1110 case PED_DEVICE_DAC960:
1111 if (!init_generic (dev, _("DAC960 RAID controller")))
1112 goto error_free_arch_specific;
1115 case PED_DEVICE_SX8:
1116 if (!init_generic (dev, _("Promise SX8 SATA Device")))
1117 goto error_free_arch_specific;
1120 case PED_DEVICE_DASD:
1121 if (!init_dasd (dev, _("IBM S390 DASD drive")))
1122 goto error_free_arch_specific;
1125 case PED_DEVICE_VIODASD:
1126 if (!init_generic (dev, _("IBM iSeries Virtual DASD")))
1127 goto error_free_arch_specific;
1130 case PED_DEVICE_CPQARRAY:
1131 if (!init_generic (dev, _("Compaq Smart Array")))
1132 goto error_free_arch_specific;
1135 case PED_DEVICE_ATARAID:
1136 if (!init_generic (dev, _("ATARAID Controller")))
1137 goto error_free_arch_specific;
1140 case PED_DEVICE_I2O:
1141 if (!init_generic (dev, _("I2O Controller")))
1142 goto error_free_arch_specific;
1145 case PED_DEVICE_UBD:
1146 if (!init_generic (dev, _("User-Mode Linux UBD")))
1147 goto error_free_arch_specific;
1150 case PED_DEVICE_FILE:
1151 if (!init_file (dev))
1152 goto error_free_arch_specific;
1155 #ifdef ENABLE_DEVICE_MAPPER
1157 if (!init_generic (dev, _("Linux device-mapper")))
1158 goto error_free_arch_specific;
1162 case PED_DEVICE_UNKNOWN:
1163 if (!init_generic (dev, _("Unknown")))
1164 goto error_free_arch_specific;
1168 ped_exception_throw (PED_EXCEPTION_NO_FEATURE,
1169 PED_EXCEPTION_CANCEL,
1170 _("ped_device_new() Unsupported device type"));
1171 goto error_free_arch_specific;
1175 error_free_arch_specific:
1176 ped_free (dev->arch_specific);
1178 ped_free (dev->path);
1186 linux_destroy (PedDevice* dev)
1188 ped_free (dev->arch_specific);
1189 ped_free (dev->path);
1190 ped_free (dev->model);
1195 linux_is_busy (PedDevice* dev)
1200 if (_partition_is_mounted_by_path (dev->path))
1203 for (i = 0; i < 32; i++) {
1206 part_name = _device_get_part_path (dev, i);
1209 status = _partition_is_mounted_by_path (part_name);
1210 ped_free (part_name);
1219 /* we need to flush the master device, and all the partition devices,
1220 * because there is no coherency between the caches.
1221 * We should only flush unmounted partition devices, because:
1222 * - there is never a need to flush them (we're not doing IO there)
1223 * - flushing a device that is mounted causes unnecessary IO, and can
1224 * even screw journaling & friends up. Even cause oopsen!
1227 _flush_cache (PedDevice* dev)
1229 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1236 ioctl (arch_specific->fd, BLKFLSBUF);
1238 for (i = 1; i < 16; i++) {
1242 name = _device_get_part_path (dev, i);
1245 if (!_partition_is_mounted_by_path (name)) {
1246 fd = open (name, WR_MODE, 0);
1248 ioctl (fd, BLKFLSBUF);
1257 linux_open (PedDevice* dev)
1259 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1262 arch_specific->fd = open (dev->path, RW_MODE);
1264 if (arch_specific->fd == -1) {
1265 char* rw_error_msg = strerror (errno);
1267 arch_specific->fd = open (dev->path, RD_MODE);
1269 if (arch_specific->fd == -1) {
1270 if (ped_exception_throw (
1271 PED_EXCEPTION_ERROR,
1272 PED_EXCEPTION_RETRY_CANCEL,
1273 _("Error opening %s: %s"),
1274 dev->path, strerror (errno))
1275 != PED_EXCEPTION_RETRY) {
1281 ped_exception_throw (
1282 PED_EXCEPTION_WARNING,
1284 _("Unable to open %s read-write (%s). %s has "
1285 "been opened read-only."),
1286 dev->path, rw_error_msg, dev->path);
1299 linux_refresh_open (PedDevice* dev)
1305 linux_close (PedDevice* dev)
1307 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1311 close (arch_specific->fd);
1316 linux_refresh_close (PedDevice* dev)
1323 #if SIZEOF_OFF_T < 8
1325 static _syscall5(int,_llseek,
1327 unsigned long, offset_high,
1328 unsigned long, offset_low,
1330 unsigned int, origin)
1333 llseek (unsigned int fd, loff_t offset, unsigned int whence)
1338 retval = _llseek(fd,
1339 ((unsigned long long)offset) >> 32,
1340 ((unsigned long long)offset) & 0xffffffff,
1343 return (retval==-1 ? (loff_t) retval : result);
1346 #endif /* SIZEOF_OFF_T < 8 */
1349 _device_seek (const PedDevice* dev, PedSector sector)
1351 LinuxSpecific* arch_specific;
1353 PED_ASSERT (dev->sector_size % 512 == 0, return 0);
1354 PED_ASSERT (dev != NULL, return 0);
1355 PED_ASSERT (!dev->external_mode, return 0);
1357 arch_specific = LINUX_SPECIFIC (dev);
1359 #if SIZEOF_OFF_T < 8
1360 if (sizeof (off_t) < 8) {
1361 loff_t pos = (loff_t)(sector * dev->sector_size);
1362 return llseek (arch_specific->fd, pos, SEEK_SET) == pos;
1366 off_t pos = sector * dev->sector_size;
1367 return lseek (arch_specific->fd, pos, SEEK_SET) == pos;
1372 _read_lastoddsector (const PedDevice* dev, void* buffer)
1374 LinuxSpecific* arch_specific;
1375 struct blkdev_ioctl_param ioctl_param;
1377 PED_ASSERT(dev != NULL, return 0);
1378 PED_ASSERT(buffer != NULL, return 0);
1380 arch_specific = LINUX_SPECIFIC (dev);
1383 ioctl_param.block = 0; /* read the last sector */
1384 ioctl_param.content_length = dev->sector_size;
1385 ioctl_param.block_contents = buffer;
1387 if (ioctl(arch_specific->fd, BLKGETLASTSECT, &ioctl_param) == -1) {
1388 PedExceptionOption opt;
1389 opt = ped_exception_throw (
1390 PED_EXCEPTION_ERROR,
1391 PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1392 _("%s during read on %s"),
1393 strerror (errno), dev->path);
1395 if (opt == PED_EXCEPTION_CANCEL)
1397 if (opt == PED_EXCEPTION_RETRY)
1405 linux_read (const PedDevice* dev, void* buffer, PedSector start,
1408 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1410 PedExceptionOption ex_status;
1411 size_t read_length = count * dev->sector_size;
1414 PED_ASSERT (dev->sector_size % 512 == 0, return 0);
1416 if (_get_linux_version() < KERNEL_VERSION (2,6,0)) {
1417 /* Kludge. This is necessary to read/write the last
1418 block of an odd-sized disk, until Linux 2.5.x kernel fixes.
1420 if (dev->type != PED_DEVICE_FILE && (dev->length & 1)
1421 && start + count - 1 == dev->length - 1)
1422 return ped_device_read (dev, buffer, start, count - 1)
1423 && _read_lastoddsector (
1424 dev, buffer + (count-1) * 512);
1427 if (_device_seek (dev, start))
1430 ex_status = ped_exception_throw (
1431 PED_EXCEPTION_ERROR,
1432 PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1433 _("%s during seek for read on %s"),
1434 strerror (errno), dev->path);
1436 switch (ex_status) {
1437 case PED_EXCEPTION_IGNORE:
1440 case PED_EXCEPTION_RETRY:
1443 case PED_EXCEPTION_UNHANDLED:
1444 ped_exception_catch ();
1445 case PED_EXCEPTION_CANCEL:
1451 if (posix_memalign(&diobuf, PED_SECTOR_SIZE_DEFAULT,
1452 count * PED_SECTOR_SIZE_DEFAULT) != 0)
1456 status = read (arch_specific->fd, diobuf, read_length);
1458 memcpy(buffer, diobuf, status);
1459 if (status == count * dev->sector_size) break;
1461 read_length -= status;
1466 ex_status = ped_exception_throw (
1467 PED_EXCEPTION_ERROR,
1468 PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1469 _("%s during read on %s"),
1473 switch (ex_status) {
1474 case PED_EXCEPTION_IGNORE:
1478 case PED_EXCEPTION_RETRY:
1481 case PED_EXCEPTION_UNHANDLED:
1482 ped_exception_catch ();
1483 case PED_EXCEPTION_CANCEL:
1494 _write_lastoddsector (PedDevice* dev, const void* buffer)
1496 LinuxSpecific* arch_specific;
1497 struct blkdev_ioctl_param ioctl_param;
1499 PED_ASSERT(dev != NULL, return 0);
1500 PED_ASSERT(buffer != NULL, return 0);
1502 arch_specific = LINUX_SPECIFIC (dev);
1505 ioctl_param.block = 0; /* write the last sector */
1506 ioctl_param.content_length = dev->sector_size;
1507 ioctl_param.block_contents = (void*) buffer;
1509 if (ioctl(arch_specific->fd, BLKSETLASTSECT, &ioctl_param) == -1) {
1510 PedExceptionOption opt;
1511 opt = ped_exception_throw (
1512 PED_EXCEPTION_ERROR,
1513 PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1514 _("%s during write on %s"),
1515 strerror (errno), dev->path);
1517 if (opt == PED_EXCEPTION_CANCEL)
1519 if (opt == PED_EXCEPTION_RETRY)
1527 linux_write (PedDevice* dev, const void* buffer, PedSector start,
1530 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1532 PedExceptionOption ex_status;
1533 size_t write_length = count * dev->sector_size;
1537 PED_ASSERT(dev->sector_size % 512 == 0, return 0);
1539 if (dev->read_only) {
1540 if (ped_exception_throw (
1541 PED_EXCEPTION_ERROR,
1542 PED_EXCEPTION_IGNORE_CANCEL,
1543 _("Can't write to %s, because it is opened read-only."),
1545 != PED_EXCEPTION_IGNORE)
1551 if (_get_linux_version() < KERNEL_VERSION (2,6,0)) {
1552 /* Kludge. This is necessary to read/write the last
1553 block of an odd-sized disk, until Linux 2.5.x kernel fixes.
1555 if (dev->type != PED_DEVICE_FILE && (dev->length & 1)
1556 && start + count - 1 == dev->length - 1)
1557 return ped_device_write (dev, buffer, start, count - 1)
1558 && _write_lastoddsector (
1559 dev, buffer + (count-1) * 512);
1562 if (_device_seek (dev, start))
1565 ex_status = ped_exception_throw (
1566 PED_EXCEPTION_ERROR, PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1567 _("%s during seek for write on %s"),
1568 strerror (errno), dev->path);
1570 switch (ex_status) {
1571 case PED_EXCEPTION_IGNORE:
1574 case PED_EXCEPTION_RETRY:
1577 case PED_EXCEPTION_UNHANDLED:
1578 ped_exception_catch ();
1579 case PED_EXCEPTION_CANCEL:
1585 printf ("ped_device_write (\"%s\", %p, %d, %d)\n",
1586 dev->path, buffer, (int) start, (int) count);
1589 if (posix_memalign(&diobuf, PED_SECTOR_SIZE_DEFAULT,
1590 count * PED_SECTOR_SIZE_DEFAULT) != 0)
1592 memcpy(diobuf, buffer, count * PED_SECTOR_SIZE_DEFAULT);
1593 diobuf_start = diobuf;
1595 status = write (arch_specific->fd, diobuf, write_length);
1596 if (status == count * dev->sector_size) break;
1598 write_length -= status;
1603 ex_status = ped_exception_throw (
1604 PED_EXCEPTION_ERROR,
1605 PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1606 _("%s during write on %s"),
1607 strerror (errno), dev->path);
1609 switch (ex_status) {
1610 case PED_EXCEPTION_IGNORE:
1614 case PED_EXCEPTION_RETRY:
1617 case PED_EXCEPTION_UNHANDLED:
1618 ped_exception_catch ();
1619 case PED_EXCEPTION_CANCEL:
1625 #endif /* !READ_ONLY */
1629 /* returns the number of sectors that are ok.
1632 linux_check (PedDevice* dev, void* buffer, PedSector start, PedSector count)
1634 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1639 PED_ASSERT(dev != NULL, return 0);
1641 if (!_device_seek (dev, start))
1644 if (posix_memalign(&diobuf, PED_SECTOR_SIZE_DEFAULT,
1645 count * PED_SECTOR_SIZE_DEFAULT) != 0)
1648 for (done = 0; done < count; done += status / dev->sector_size) {
1649 status = read (arch_specific->fd, diobuf,
1650 (size_t) ((count-done) * dev->sector_size));
1652 memcpy(buffer, diobuf, status);
1662 _do_fsync (PedDevice* dev)
1664 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
1666 PedExceptionOption ex_status;
1669 status = fsync (arch_specific->fd);
1670 if (status >= 0) break;
1672 ex_status = ped_exception_throw (
1673 PED_EXCEPTION_ERROR,
1674 PED_EXCEPTION_RETRY_IGNORE_CANCEL,
1675 _("%s during write on %s"),
1676 strerror (errno), dev->path);
1678 switch (ex_status) {
1679 case PED_EXCEPTION_IGNORE:
1682 case PED_EXCEPTION_RETRY:
1685 case PED_EXCEPTION_UNHANDLED:
1686 ped_exception_catch ();
1687 case PED_EXCEPTION_CANCEL:
1695 linux_sync (PedDevice* dev)
1697 PED_ASSERT (dev != NULL, return 0);
1698 PED_ASSERT (!dev->external_mode, return 0);
1702 if (!_do_fsync (dev))
1709 linux_sync_fast (PedDevice* dev)
1711 PED_ASSERT (dev != NULL, return 0);
1712 PED_ASSERT (!dev->external_mode, return 0);
1716 if (!_do_fsync (dev))
1718 /* no cache flush... */
1723 _compare_digit_state (char ch, int need_digit)
1725 return !!isdigit (ch) == need_digit;
1728 /* matches the regexp "[^0-9]+[0-9]+[^0-9]+[0-9]+$".
1729 * Motivation: accept devices looking like /dev/rd/c0d0, but
1730 * not looking like /dev/hda1 and /dev/rd/c0d0p1
1733 _match_rd_device (const char* name)
1738 /* exclude directory names from test */
1739 pos = strrchr(name, '/') ?: name;
1747 for (state = 0; state < 4; state++) {
1748 int want_digits = (state % 2 == 1);
1752 if (!_compare_digit_state (*pos, want_digits))
1755 } while (_compare_digit_state (*pos, want_digits));
1762 _probe_proc_partitions ()
1764 FILE* proc_part_file;
1765 int major, minor, size;
1767 char part_name [256];
1768 char dev_name [256];
1770 proc_part_file = fopen ("/proc/partitions", "r");
1771 if (!proc_part_file)
1774 fgets (buf, 256, proc_part_file);
1775 fgets (buf, 256, proc_part_file);
1777 while (fgets (buf, 512, proc_part_file)
1778 && sscanf (buf, "%d %d %d %255s", &major, &minor, &size,
1780 /* Heuristic for telling partitions and devices apart
1781 * Probably needs to be improved
1783 if (!_match_rd_device (part_name)
1784 && isdigit (part_name [strlen (part_name) - 1]))
1787 strcpy (dev_name, "/dev/");
1788 strcat (dev_name, part_name);
1789 _ped_device_probe (dev_name);
1792 fclose (proc_part_file);
1802 _skip_entry (const char *name)
1805 static struct _entry entries[] = {
1806 { ".", sizeof (".") - 1 },
1807 { "..", sizeof ("..") - 1 },
1808 { "dm-", sizeof ("dm-") - 1 },
1809 { "loop", sizeof ("loop") - 1 },
1810 { "ram", sizeof ("ram") - 1 },
1814 for (i = entries; i->name != 0; i++) {
1815 if (strncmp (name, i->name, i->len) == 0)
1826 struct dirent *dirent;
1827 char dev_name [256];
1830 if (!(blockdir = opendir ("/sys/block")))
1832 while ((dirent = readdir (blockdir))) {
1833 if (_skip_entry (dirent->d_name))
1836 if (strlen (dirent->d_name) > sizeof (dev_name) - 6)
1837 continue; /* device name too long! */
1839 strcpy (dev_name, "/dev/");
1840 strcat (dev_name, dirent->d_name);
1841 /* in /sys/block, '/'s are replaced with '!' or '.' */
1842 for (ptr = dev_name; *ptr != '\0'; ptr++) {
1843 if (*ptr == '!' || *ptr == '.')
1846 _ped_device_probe (dev_name);
1849 closedir (blockdir);
1854 _probe_standard_devices ()
1856 _ped_device_probe ("/dev/hda");
1857 _ped_device_probe ("/dev/hdb");
1858 _ped_device_probe ("/dev/hdc");
1859 _ped_device_probe ("/dev/hdd");
1860 _ped_device_probe ("/dev/hde");
1861 _ped_device_probe ("/dev/hdf");
1862 _ped_device_probe ("/dev/hdg");
1863 _ped_device_probe ("/dev/hdh");
1865 _ped_device_probe ("/dev/sda");
1866 _ped_device_probe ("/dev/sdb");
1867 _ped_device_probe ("/dev/sdc");
1868 _ped_device_probe ("/dev/sdd");
1869 _ped_device_probe ("/dev/sde");
1870 _ped_device_probe ("/dev/sdf");
1878 /* we should probe the standard devs too, even with /proc/partitions,
1879 * because /proc/partitions might return devfs stuff, and we might not
1880 * have devfs available
1882 _probe_standard_devices ();
1884 /* /sys/block is more reliable and consistent; fall back to using
1885 * /proc/partitions if the former is unavailable, however.
1887 if (!_probe_sys_block ())
1888 _probe_proc_partitions ();
1892 _device_get_part_path (PedDevice* dev, int num)
1894 int path_len = strlen (dev->path);
1895 int result_len = path_len + 16;
1898 result = (char*) ped_malloc (result_len);
1902 /* Check for devfs-style /disc => /partN transformation
1903 unconditionally; the system might be using udev with devfs rules,
1904 and if not the test is harmless. */
1905 if (!strcmp (dev->path + path_len - 5, "/disc")) {
1906 /* replace /disc with /path%d */
1907 strcpy (result, dev->path);
1908 snprintf (result + path_len - 5, 16, "/part%d", num);
1909 } else if (dev->type == PED_DEVICE_DAC960
1910 || dev->type == PED_DEVICE_CPQARRAY
1911 || dev->type == PED_DEVICE_ATARAID
1912 #ifdef ENABLE_DEVICE_MAPPER
1913 || dev->type == PED_DEVICE_DM
1915 || isdigit (dev->path[path_len - 1]))
1916 snprintf (result, result_len, "%sp%d", dev->path, num);
1918 snprintf (result, result_len, "%s%d", dev->path, num);
1924 linux_partition_get_path (const PedPartition* part)
1926 return _device_get_part_path (part->disk->dev, part->num);
1930 _partition_get_part_dev (const PedPartition* part)
1932 struct stat dev_stat;
1933 int dev_major, dev_minor;
1935 if (!_device_stat (part->disk->dev, &dev_stat))
1937 dev_major = major (dev_stat.st_rdev);
1938 dev_minor = minor (dev_stat.st_rdev);
1939 return (dev_t)makedev (dev_major, dev_minor + part->num);
1943 _mount_table_search (const char* file_name, dev_t dev)
1945 struct stat part_stat;
1947 char part_name[512];
1951 file = fopen (file_name, "r");
1954 while (fgets (line, 512, file)) {
1955 junk = sscanf (line, "%s", part_name);
1956 if (stat (part_name, &part_stat) == 0) {
1957 if (part_stat.st_rdev == dev) {
1968 _partition_is_mounted_by_dev (dev_t dev)
1970 return _mount_table_search( "/proc/mounts", dev)
1971 || _mount_table_search( "/proc/swaps", dev)
1972 || _mount_table_search( "/etc/mtab", dev);
1976 _partition_is_mounted_by_path (const char *path)
1978 struct stat part_stat;
1979 if (stat (path, &part_stat) != 0)
1981 if (!S_ISBLK(part_stat.st_mode))
1983 return _partition_is_mounted_by_dev (part_stat.st_rdev);
1987 _partition_is_mounted (const PedPartition *part)
1990 if (!ped_partition_is_active (part))
1992 dev = _partition_get_part_dev (part);
1993 return _partition_is_mounted_by_dev (dev);
1997 linux_partition_is_busy (const PedPartition* part)
2001 PED_ASSERT (part != NULL, return 0);
2003 if (_partition_is_mounted (part))
2005 if (part->type == PED_PARTITION_EXTENDED) {
2006 for (walk = part->part_list; walk; walk = walk->next) {
2007 if (linux_partition_is_busy (walk))
2015 _blkpg_part_command (PedDevice* dev, struct blkpg_partition* part, int op)
2017 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
2018 struct blkpg_ioctl_arg ioctl_arg;
2021 ioctl_arg.flags = 0;
2022 ioctl_arg.datalen = sizeof (struct blkpg_partition);
2023 ioctl_arg.data = (void*) part;
2025 return ioctl (arch_specific->fd, BLKPG, &ioctl_arg) == 0;
2029 _blkpg_add_partition (PedDisk* disk, PedPartition* part)
2031 struct blkpg_partition linux_part;
2032 const char* vol_name;
2035 PED_ASSERT(disk != NULL, return 0);
2036 PED_ASSERT(disk->dev->sector_size % 512 == 0, return 0);
2038 if (ped_disk_type_check_feature (disk->type,
2039 PED_DISK_TYPE_PARTITION_NAME))
2040 vol_name = ped_partition_get_name (part);
2044 dev_name = _device_get_part_path (disk->dev, part->num);
2048 memset (&linux_part, 0, sizeof (linux_part));
2049 linux_part.start = part->geom.start * disk->dev->sector_size;
2050 /* see fs/partitions/msdos.c:msdos_partition(): "leave room for LILO" */
2051 if (part->type & PED_PARTITION_EXTENDED)
2052 linux_part.length = part->geom.length == 1 ? 512 : 1024;
2054 linux_part.length = part->geom.length * disk->dev->sector_size;
2055 linux_part.pno = part->num;
2056 strncpy (linux_part.devname, dev_name, BLKPG_DEVNAMELTH);
2058 strncpy (linux_part.volname, vol_name, BLKPG_VOLNAMELTH);
2060 ped_free (dev_name);
2062 if (!_blkpg_part_command (disk->dev, &linux_part,
2063 BLKPG_ADD_PARTITION)) {
2064 return ped_exception_throw (
2065 PED_EXCEPTION_ERROR,
2066 PED_EXCEPTION_IGNORE_CANCEL,
2067 _("Error informing the kernel about modifications to "
2068 "partition %s -- %s. This means Linux won't know "
2069 "about any changes you made to %s until you reboot "
2070 "-- so you shouldn't mount it or use it in any way "
2071 "before rebooting."),
2075 == PED_EXCEPTION_IGNORE;
2082 _blkpg_remove_partition (PedDisk* disk, int n)
2084 struct blkpg_partition linux_part;
2086 memset (&linux_part, 0, sizeof (linux_part));
2088 return _blkpg_part_command (disk->dev, &linux_part,
2089 BLKPG_DEL_PARTITION);
2093 _disk_sync_part_table (PedDisk* disk)
2096 int last = PED_MAX (ped_disk_get_last_partition_num (disk), 16);
2097 int* rets = ped_malloc(sizeof(int) * last);
2098 int* errnums = ped_malloc(sizeof(int) * last);
2101 for (i = 1; i <= last; i++) {
2102 rets[i - 1] = _blkpg_remove_partition (disk, i);
2103 errnums[i - 1] = errno;
2106 for (i = 1; i <= last; i++) {
2109 part = ped_disk_get_partition (disk, i);
2111 /* busy... so we won't (can't!) disturb ;) Prolly
2112 * doesn't matter anyway, because users shouldn't be
2113 * changing mounted partitions anyway...
2115 if (!rets[i - 1] && errnums[i - 1] == EBUSY)
2118 /* add the (possibly modified or new) partition */
2119 if (!_blkpg_add_partition (disk, part))
2127 #ifdef ENABLE_DEVICE_MAPPER
2129 _dm_remove_map(int major, int minor)
2131 struct dm_task *task = NULL;
2134 task = dm_task_create(DM_DEVICE_REMOVE);
2138 dm_task_set_major (task, major);
2139 dm_task_set_minor (task, minor);
2141 rc = dm_task_run(task);
2142 dm_task_update_nodes();
2143 dm_task_destroy(task);
2151 _dm_remove_map_name(char *name)
2153 struct dm_task *task = NULL;
2156 task = dm_task_create(DM_DEVICE_REMOVE);
2160 dm_task_set_name (task, name);
2162 rc = dm_task_run(task);
2163 dm_task_update_nodes();
2164 dm_task_destroy(task);
2172 _dm_is_part (struct dm_info *this, char *name)
2174 struct dm_task* task = NULL;
2175 struct dm_info* info = alloca(sizeof *info);
2176 struct dm_deps* deps = NULL;
2180 task = dm_task_create(DM_DEVICE_DEPS);
2184 dm_task_set_name(task, name);
2185 rc = dm_task_run(task);
2192 memset(info, '\0', sizeof *info);
2193 dm_task_get_info(task, info);
2197 deps = dm_task_get_deps(task);
2202 for (i = 0; i < deps->count; i++) {
2203 unsigned int ma = major(deps->device[i]),
2204 mi = minor(deps->device[i]);
2206 if (ma == this->major && mi == this->minor)
2211 dm_task_destroy(task);
2216 _dm_remove_parts (PedDevice* dev)
2218 struct stat dev_stat;
2219 struct dm_task* task = NULL;
2220 struct dm_info* info = alloca(sizeof *info);
2221 struct dm_names* names = NULL;
2222 unsigned int next = 0;
2226 if (!_device_stat (dev, &dev_stat))
2229 task = dm_task_create(DM_DEVICE_LIST);
2233 dm_task_set_major (task, major (dev_stat.st_rdev));
2234 dm_task_set_minor (task, minor (dev_stat.st_rdev));
2236 rc = dm_task_run(task);
2240 memset(info, '\0', sizeof *info);
2241 dm_task_get_info(task, info);
2245 names = dm_task_get_names(task);
2251 names = (void *)names + next;
2253 if (_dm_is_part(info, names->name))
2254 rc += _dm_remove_map_name(names->name);
2259 dm_task_update_nodes();
2260 dm_task_destroy(task);
2267 dm_task_destroy(task);
2268 ped_exception_throw (PED_EXCEPTION_WARNING, PED_EXCEPTION_IGNORE,
2269 _("parted was unable to re-read the partition "
2270 "table on %s (%s). This means Linux won't know "
2271 "anything about the modifications you made. "),
2272 dev->path, strerror (errno));
2277 _dm_add_partition (PedDisk* disk, PedPartition* part)
2279 struct stat dev_stat;
2280 struct dm_task* task = NULL;
2282 char* vol_name = NULL;
2283 char* dev_name = NULL;
2284 char* params = NULL;
2286 dev_name = _device_get_part_path (disk->dev, part->num);
2290 vol_name = strrchr (dev_name, '/');
2291 if (vol_name && *vol_name && *(++vol_name))
2292 vol_name = strdup (vol_name);
2294 vol_name = strdup (dev_name);
2298 if (!_device_stat (disk->dev, &dev_stat))
2301 asprintf (¶ms, "%d:%d %lu", major (dev_stat.st_rdev),
2302 minor (dev_stat.st_rdev),
2307 task = dm_task_create (DM_DEVICE_CREATE);
2311 dm_task_set_name (task, vol_name);
2312 dm_task_add_target (task, 0, part->geom.length,
2314 rc = dm_task_run(task);
2316 //printf("0 %ld linear %s\n", part->geom.length, params);
2317 dm_task_update_nodes();
2318 dm_task_destroy(task);
2323 _dm_remove_map_name(vol_name);
2326 dm_task_update_nodes();
2328 dm_task_destroy (task);
2336 _dm_reread_part_table (PedDisk* disk)
2339 int last = PED_MAX (ped_disk_get_last_partition_num (disk), 16);
2343 if (!_dm_remove_parts(disk->dev))
2346 for (i = 1; i <= last; i++) {
2349 part = ped_disk_get_partition (disk, i);
2353 if (!_dm_add_partition (disk, part))
2361 _kernel_reread_part_table (PedDevice* dev)
2363 LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
2364 int retry_count = 5;
2367 while (ioctl (arch_specific->fd, BLKRRPART)) {
2371 ped_exception_throw (
2372 PED_EXCEPTION_WARNING,
2373 PED_EXCEPTION_IGNORE,
2374 _("The kernel was unable to re-read the partition "
2375 "table on %s (%s). This means Linux won't know "
2376 "anything about the modifications you made "
2377 "until you reboot. You should reboot your computer "
2378 "before doing anything with %s."),
2379 dev->path, strerror (errno), dev->path);
2390 static int have_blkpg = -1;
2393 if (have_blkpg != -1)
2396 kver = _get_linux_version();
2397 return have_blkpg = kver >= KERNEL_VERSION (2,4,0) ? 1 : 0;
2401 linux_disk_commit (PedDisk* disk)
2403 #ifdef ENABLE_DEVICE_MAPPER
2404 if (disk->dev->type == PED_DEVICE_DM)
2405 return _dm_reread_part_table (disk);
2407 if (disk->dev->type != PED_DEVICE_FILE) {
2408 /* The ioctl() command BLKPG_ADD_PARTITION does not notify
2409 * the devfs system; consequently, /proc/partitions will not
2410 * be up to date, and the proper links in /dev are not
2411 * created. Therefore, if using DevFS, we must get the kernel
2412 * to re-read and grok the partition table.
2414 /* Work around kernel dasd problem so we really do BLKRRPART */
2415 if (disk->dev->type != PED_DEVICE_DASD &&
2416 _have_blkpg () && !_have_devfs ()) {
2417 if (_disk_sync_part_table (disk))
2421 return _kernel_reread_part_table (disk->dev);
2427 static PedDeviceArchOps linux_dev_ops = {
2429 destroy: linux_destroy,
2430 is_busy: linux_is_busy,
2432 refresh_open: linux_refresh_open,
2434 refresh_close: linux_refresh_close,
2439 sync_fast: linux_sync_fast,
2440 probe_all: linux_probe_all
2443 PedDiskArchOps linux_disk_ops = {
2444 partition_get_path: linux_partition_get_path,
2445 partition_is_busy: linux_partition_is_busy,
2446 disk_commit: linux_disk_commit
2449 PedArchitecture ped_linux_arch = {
2450 dev_ops: &linux_dev_ops,
2451 disk_ops: &linux_disk_ops