2 * Copyright (C) 2010 Red Hat Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
38 #include "ignore-value.h"
42 #include "guestfs-internal.h"
43 #include "guestfs-internal-actions.h"
44 #include "guestfs_protocol.h"
46 #if defined(HAVE_PCRE) && defined(HAVE_HIVEX)
48 /* Compile all the regular expressions once when the shared library is
49 * loaded. PCRE is thread safe so we're supposedly OK here if
50 * multiple threads call into the libguestfs API functions below
53 static pcre *re_fedora;
54 static pcre *re_rhel_old;
56 static pcre *re_rhel_no_minor;
57 static pcre *re_major_minor;
58 static pcre *re_aug_seq;
60 static pcre *re_first_partition;
61 static pcre *re_freebsd;
62 static pcre *re_windows_version;
64 static void compile_regexps (void) __attribute__((constructor));
65 static void free_regexps (void) __attribute__((destructor));
68 compile_regexps (void)
73 #define COMPILE(re,pattern,options) \
75 re = pcre_compile ((pattern), (options), &err, &offset, NULL); \
77 ignore_value (write (2, err, strlen (err))); \
82 COMPILE (re_fedora, "Fedora release (\\d+)", 0);
84 "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+).*Update (\\d+)", 0);
86 "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0);
87 COMPILE (re_rhel_no_minor,
88 "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)", 0);
89 COMPILE (re_major_minor, "(\\d+)\\.(\\d+)", 0);
90 COMPILE (re_aug_seq, "/\\d+$", 0);
91 COMPILE (re_xdev, "^/dev/(?:h|s|v|xv)d([a-z]\\d*)$", 0);
92 COMPILE (re_first_partition, "^/dev/(?:h|s|v)d.1$", 0);
93 COMPILE (re_freebsd, "^/dev/ad(\\d+)s(\\d+)([a-z])$", 0);
94 COMPILE (re_windows_version, "^(\\d+)\\.(\\d+)", 0);
100 pcre_free (re_fedora);
101 pcre_free (re_rhel_old);
103 pcre_free (re_rhel_no_minor);
104 pcre_free (re_major_minor);
105 pcre_free (re_aug_seq);
107 pcre_free (re_first_partition);
108 pcre_free (re_freebsd);
109 pcre_free (re_windows_version);
112 /* The main inspection code. */
113 static int check_for_filesystem_on (guestfs_h *g, const char *device);
116 guestfs__inspect_os (guestfs_h *g)
118 /* Remove any information previously stored in the handle. */
119 guestfs___free_inspect_info (g);
121 if (guestfs_umount_all (g) == -1)
124 /* Iterate over all possible devices. Try to mount each
125 * (read-only). Examine ones which contain filesystems and add that
126 * information to the handle.
128 /* Look to see if any devices directly contain filesystems (RHBZ#590167). */
130 devices = guestfs_list_devices (g);
135 for (i = 0; devices[i] != NULL; ++i) {
136 if (check_for_filesystem_on (g, devices[i]) == -1) {
137 guestfs___free_string_list (devices);
138 guestfs___free_inspect_info (g);
142 guestfs___free_string_list (devices);
144 /* Look at all partitions. */
146 partitions = guestfs_list_partitions (g);
147 if (partitions == NULL) {
148 guestfs___free_inspect_info (g);
152 for (i = 0; partitions[i] != NULL; ++i) {
153 if (check_for_filesystem_on (g, partitions[i]) == -1) {
154 guestfs___free_string_list (partitions);
155 guestfs___free_inspect_info (g);
159 guestfs___free_string_list (partitions);
161 /* Look at all LVs. */
162 if (guestfs___feature_available (g, "lvm2")) {
164 lvs = guestfs_lvs (g);
166 guestfs___free_inspect_info (g);
170 for (i = 0; lvs[i] != NULL; ++i) {
171 if (check_for_filesystem_on (g, lvs[i]) == -1) {
172 guestfs___free_string_list (lvs);
173 guestfs___free_inspect_info (g);
177 guestfs___free_string_list (lvs);
180 /* At this point we have, in the handle, a list of all filesystems
181 * found and data about each one. Now we assemble the list of
182 * filesystems which are root devices and return that to the user.
183 * Fall through to guestfs__inspect_get_roots to do that.
185 char **ret = guestfs__inspect_get_roots (g);
187 guestfs___free_inspect_info (g);
191 /* Find out if 'device' contains a filesystem. If it does, add
192 * another entry in g->fses.
194 static int check_filesystem (guestfs_h *g, const char *device);
195 static int check_linux_root (guestfs_h *g, struct inspect_fs *fs);
196 static int check_freebsd_root (guestfs_h *g, struct inspect_fs *fs);
197 static void check_architecture (guestfs_h *g, struct inspect_fs *fs);
198 static int check_fstab (guestfs_h *g, struct inspect_fs *fs);
199 static int check_windows_root (guestfs_h *g, struct inspect_fs *fs);
200 static int check_windows_arch (guestfs_h *g, struct inspect_fs *fs);
201 static int check_windows_registry (guestfs_h *g, struct inspect_fs *fs);
202 static char *resolve_windows_path_silently (guestfs_h *g, const char *);
203 static int extend_fses (guestfs_h *g);
204 static int parse_unsigned_int (guestfs_h *g, const char *str);
205 static int add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
206 const char *spec, const char *mp);
207 static char *resolve_fstab_device (guestfs_h *g, const char *spec);
208 static void check_package_format (guestfs_h *g, struct inspect_fs *fs);
209 static void check_package_management (guestfs_h *g, struct inspect_fs *fs);
210 static int download_to_tmp (guestfs_h *g, const char *filename, char *localtmp, int64_t max_size);
211 static int inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, int (*f) (guestfs_h *, struct inspect_fs *));
214 check_for_filesystem_on (guestfs_h *g, const char *device)
216 /* Get vfs-type in order to check if it's a Linux(?) swap device.
217 * If there's an error we should ignore it, so to do that we have to
218 * temporarily replace the error handler with a null one.
220 guestfs_error_handler_cb old_error_cb = g->error_cb;
222 char *vfs_type = guestfs_vfs_type (g, device);
223 g->error_cb = old_error_cb;
225 int is_swap = vfs_type && STREQ (vfs_type, "swap");
228 fprintf (stderr, "check_for_filesystem_on: %s (%s)\n",
229 device, vfs_type ? vfs_type : "failed to get vfs type");
233 if (extend_fses (g) == -1)
235 g->fses[g->nr_fses-1].is_swap = 1;
239 /* Try mounting the device. As above, ignore errors. */
241 int r = guestfs_mount_ro (g, device, "/");
242 if (r == -1 && vfs_type && STREQ (vfs_type, "ufs")) /* Hack for the *BSDs. */
243 r = guestfs_mount_vfs (g, "ro,ufstype=ufs2", "ufs", device, "/");
245 g->error_cb = old_error_cb;
249 /* Do the rest of the checks. */
250 r = check_filesystem (g, device);
252 /* Unmount the filesystem. */
253 if (guestfs_umount_all (g) == -1)
260 check_filesystem (guestfs_h *g, const char *device)
262 if (extend_fses (g) == -1)
265 struct inspect_fs *fs = &g->fses[g->nr_fses-1];
267 fs->device = safe_strdup (g, device);
268 fs->is_mountable = 1;
270 /* Optimize some of the tests by avoiding multiple tests of the same thing. */
271 int is_dir_etc = guestfs_is_dir (g, "/etc") > 0;
272 int is_dir_bin = guestfs_is_dir (g, "/bin") > 0;
273 int is_dir_share = guestfs_is_dir (g, "/share") > 0;
276 if (guestfs_is_file (g, "/grub/menu.lst") > 0 ||
277 guestfs_is_file (g, "/grub/grub.conf") > 0)
278 fs->content = FS_CONTENT_LINUX_BOOT;
280 else if (is_dir_etc &&
282 guestfs_is_file (g, "/etc/freebsd-update.conf") > 0 &&
283 guestfs_is_file (g, "/etc/fstab") > 0) {
284 /* Ignore /dev/sda1 which is a shadow of the real root filesystem
285 * that is probably /dev/sda5 (see:
286 * http://www.freebsd.org/doc/handbook/disk-organization.html)
288 if (match (g, device, re_first_partition))
292 fs->content = FS_CONTENT_FREEBSD_ROOT;
293 if (check_freebsd_root (g, fs) == -1)
297 else if (is_dir_etc &&
299 guestfs_is_file (g, "/etc/fstab") > 0) {
301 fs->content = FS_CONTENT_LINUX_ROOT;
302 if (check_linux_root (g, fs) == -1)
305 /* Linux /usr/local? */
306 else if (is_dir_etc &&
309 guestfs_exists (g, "/local") == 0 &&
310 guestfs_is_file (g, "/etc/fstab") == 0)
311 fs->content = FS_CONTENT_LINUX_USR_LOCAL;
313 else if (is_dir_etc &&
316 guestfs_exists (g, "/local") > 0 &&
317 guestfs_is_file (g, "/etc/fstab") == 0)
318 fs->content = FS_CONTENT_LINUX_USR;
320 else if (guestfs_is_dir (g, "/log") > 0 &&
321 guestfs_is_dir (g, "/run") > 0 &&
322 guestfs_is_dir (g, "/spool") > 0)
323 fs->content = FS_CONTENT_LINUX_VAR;
325 else if (guestfs_is_file (g, "/AUTOEXEC.BAT") > 0 ||
326 guestfs_is_file (g, "/autoexec.bat") > 0 ||
327 guestfs_is_dir (g, "/Program Files") > 0 ||
328 guestfs_is_dir (g, "/WINDOWS") > 0 ||
329 guestfs_is_dir (g, "/Windows") > 0 ||
330 guestfs_is_dir (g, "/windows") > 0 ||
331 guestfs_is_dir (g, "/WIN32") > 0 ||
332 guestfs_is_dir (g, "/Win32") > 0 ||
333 guestfs_is_dir (g, "/WINNT") > 0 ||
334 guestfs_is_file (g, "/boot.ini") > 0 ||
335 guestfs_is_file (g, "/ntldr") > 0) {
337 fs->content = FS_CONTENT_WINDOWS_ROOT;
338 if (check_windows_root (g, fs) == -1)
345 /* Set fs->product_name to the first line of the release file. */
347 parse_release_file (guestfs_h *g, struct inspect_fs *fs,
348 const char *release_filename)
350 char **product_name = guestfs_head_n (g, 1, release_filename);
351 if (product_name == NULL)
353 if (product_name[0] == NULL) {
354 error (g, _("%s: file is empty"), release_filename);
355 guestfs___free_string_list (product_name);
359 /* Note that this string becomes owned by the handle and will
360 * be freed by guestfs___free_inspect_info.
362 fs->product_name = product_name[0];
368 /* Parse generic MAJOR.MINOR from the fs->product_name string. */
370 parse_major_minor (guestfs_h *g, struct inspect_fs *fs)
374 if (match2 (g, fs->product_name, re_major_minor, &major, &minor)) {
375 fs->major_version = parse_unsigned_int (g, major);
377 if (fs->major_version == -1) {
381 fs->minor_version = parse_unsigned_int (g, minor);
383 if (fs->minor_version == -1)
389 /* Ubuntu has /etc/lsb-release containing:
390 * DISTRIB_ID=Ubuntu # Distro
391 * DISTRIB_RELEASE=10.04 # Version
392 * DISTRIB_CODENAME=lucid
393 * DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS" # Product name
395 * [Ubuntu-derived ...] Linux Mint was found to have this:
396 * DISTRIB_ID=LinuxMint
398 * DISTRIB_CODENAME=julia
399 * DISTRIB_DESCRIPTION="Linux Mint 10 Julia"
400 * Linux Mint also has /etc/linuxmint/info with more information,
401 * but we can use the LSB file.
404 * LSB_VERSION=lsb-4.0-amd64:lsb-4.0-noarch
405 * DISTRIB_ID=MandrivaLinux
406 * DISTRIB_RELEASE=2010.1
407 * DISTRIB_CODENAME=Henry_Farman
408 * DISTRIB_DESCRIPTION="Mandriva Linux 2010.1"
409 * Mandriva also has a normal release file called /etc/mandriva-release.
412 parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
418 lines = guestfs_head_n (g, 10, "/etc/lsb-release");
422 for (i = 0; lines[i] != NULL; ++i) {
423 if (fs->distro == 0 &&
424 STREQ (lines[i], "DISTRIB_ID=Ubuntu")) {
425 fs->distro = OS_DISTRO_UBUNTU;
428 else if (fs->distro == 0 &&
429 STREQ (lines[i], "DISTRIB_ID=LinuxMint")) {
430 fs->distro = OS_DISTRO_LINUX_MINT;
433 else if (fs->distro == 0 &&
434 STREQ (lines[i], "DISTRIB_ID=MandrivaLinux")) {
435 fs->distro = OS_DISTRO_MANDRIVA;
438 else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
440 if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) {
441 fs->major_version = parse_unsigned_int (g, major);
443 if (fs->major_version == -1) {
445 guestfs___free_string_list (lines);
448 fs->minor_version = parse_unsigned_int (g, minor);
450 if (fs->minor_version == -1) {
451 guestfs___free_string_list (lines);
456 else if (fs->product_name == NULL &&
457 (STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=\"") ||
458 STRPREFIX (lines[i], "DISTRIB_DESCRIPTION='"))) {
459 size_t len = strlen (lines[i]) - 21 - 1;
460 fs->product_name = safe_strndup (g, &lines[i][21], len);
463 else if (fs->product_name == NULL &&
464 STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=")) {
465 size_t len = strlen (lines[i]) - 20;
466 fs->product_name = safe_strndup (g, &lines[i][20], len);
471 guestfs___free_string_list (lines);
475 /* The currently mounted device is known to be a Linux root. Try to
476 * determine from this the distro, version, etc. Also parse
477 * /etc/fstab to determine the arrangement of mountpoints and
478 * associated devices.
481 check_linux_root (guestfs_h *g, struct inspect_fs *fs)
485 fs->type = OS_TYPE_LINUX;
487 if (guestfs_exists (g, "/etc/lsb-release") > 0) {
488 r = parse_lsb_release (g, fs);
489 if (r == -1) /* error */
491 if (r == 1) /* ok - detected the release from this file */
492 goto skip_release_checks;
495 if (guestfs_exists (g, "/etc/redhat-release") > 0) {
496 fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */
498 if (parse_release_file (g, fs, "/etc/redhat-release") == -1)
502 if ((major = match1 (g, fs->product_name, re_fedora)) != NULL) {
503 fs->distro = OS_DISTRO_FEDORA;
504 fs->major_version = parse_unsigned_int (g, major);
506 if (fs->major_version == -1)
509 else if (match2 (g, fs->product_name, re_rhel_old, &major, &minor) ||
510 match2 (g, fs->product_name, re_rhel, &major, &minor)) {
511 fs->distro = OS_DISTRO_RHEL;
512 fs->major_version = parse_unsigned_int (g, major);
514 if (fs->major_version == -1) {
518 fs->minor_version = parse_unsigned_int (g, minor);
520 if (fs->minor_version == -1)
523 else if ((major = match1 (g, fs->product_name, re_rhel_no_minor)) != NULL) {
524 fs->distro = OS_DISTRO_RHEL;
525 fs->major_version = parse_unsigned_int (g, major);
527 if (fs->major_version == -1)
529 fs->minor_version = 0;
532 else if (guestfs_exists (g, "/etc/debian_version") > 0) {
533 fs->distro = OS_DISTRO_DEBIAN;
535 if (parse_release_file (g, fs, "/etc/debian_version") == -1)
538 if (parse_major_minor (g, fs) == -1)
541 else if (guestfs_exists (g, "/etc/pardus-release") > 0) {
542 fs->distro = OS_DISTRO_PARDUS;
544 if (parse_release_file (g, fs, "/etc/pardus-release") == -1)
547 if (parse_major_minor (g, fs) == -1)
550 else if (guestfs_exists (g, "/etc/arch-release") > 0) {
551 fs->distro = OS_DISTRO_ARCHLINUX;
553 /* /etc/arch-release file is empty and I can't see a way to
554 * determine the actual release or product string.
557 else if (guestfs_exists (g, "/etc/gentoo-release") > 0) {
558 fs->distro = OS_DISTRO_GENTOO;
560 if (parse_release_file (g, fs, "/etc/gentoo-release") == -1)
563 if (parse_major_minor (g, fs) == -1)
566 else if (guestfs_exists (g, "/etc/meego-release") > 0) {
567 fs->distro = OS_DISTRO_MEEGO;
569 if (parse_release_file (g, fs, "/etc/meego-release") == -1)
572 if (parse_major_minor (g, fs) == -1)
576 skip_release_checks:;
578 /* If distro test above was successful, work out the package format. */
579 check_package_format (g, fs);
580 check_package_management (g, fs);
582 /* Determine the architecture. */
583 check_architecture (g, fs);
585 /* We already know /etc/fstab exists because it's part of the test
586 * for Linux root above. We must now parse this file to determine
587 * which filesystems are used by the operating system and how they
590 if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
596 /* The currently mounted device is known to be a FreeBSD root. */
598 check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
602 fs->type = OS_TYPE_FREEBSD;
604 /* FreeBSD has no authoritative version file. The version number is
605 * in /etc/motd, which the system administrator might edit, but
606 * we'll use that anyway.
609 if (guestfs_exists (g, "/etc/motd") > 0) {
610 if (parse_release_file (g, fs, "/etc/motd") == -1)
613 if (parse_major_minor (g, fs) == -1)
617 /* Determine the architecture. */
618 check_architecture (g, fs);
620 /* We already know /etc/fstab exists because it's part of the test above. */
621 if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
628 check_architecture (guestfs_h *g, struct inspect_fs *fs)
630 const char *binaries[] =
631 { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" };
634 for (i = 0; i < sizeof binaries / sizeof binaries[0]; ++i) {
635 if (guestfs_is_file (g, binaries[i]) > 0) {
636 /* Ignore errors from file_architecture call. */
637 guestfs_error_handler_cb old_error_cb = g->error_cb;
639 char *arch = guestfs_file_architecture (g, binaries[i]);
640 g->error_cb = old_error_cb;
643 /* String will be owned by handle, freed by
644 * guestfs___free_inspect_info.
654 check_fstab (guestfs_h *g, struct inspect_fs *fs)
656 char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
660 if (lines[0] == NULL) {
661 error (g, _("could not parse /etc/fstab or empty file"));
662 guestfs___free_string_list (lines);
668 for (i = 0; lines[i] != NULL; ++i) {
669 /* Ignore comments. Only care about sequence lines which
672 if (match (g, lines[i], re_aug_seq)) {
673 snprintf (augpath, sizeof augpath, "%s/spec", lines[i]);
674 char *spec = guestfs_aug_get (g, augpath);
676 guestfs___free_string_list (lines);
680 snprintf (augpath, sizeof augpath, "%s/file", lines[i]);
681 char *mp = guestfs_aug_get (g, augpath);
683 guestfs___free_string_list (lines);
688 int r = add_fstab_entry (g, fs, spec, mp);
693 guestfs___free_string_list (lines);
699 guestfs___free_string_list (lines);
703 /* Add a filesystem and possibly a mountpoint entry for
704 * the root filesystem 'fs'.
706 * 'spec' is the fstab spec field, which might be a device name or a
707 * pseudodevice or 'UUID=...' or 'LABEL=...'.
709 * 'mp' is the mount point, which could also be 'swap' or 'none'.
712 add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
713 const char *spec, const char *mp)
715 /* Ignore certain mountpoints. */
716 if (STRPREFIX (mp, "/dev/") ||
717 STREQ (mp, "/dev") ||
718 STRPREFIX (mp, "/media/") ||
719 STRPREFIX (mp, "/proc/") ||
720 STREQ (mp, "/proc") ||
721 STRPREFIX (mp, "/selinux/") ||
722 STREQ (mp, "/selinux") ||
723 STRPREFIX (mp, "/sys/") ||
727 /* Ignore /dev/fd (floppy disks) (RHBZ#642929) and CD-ROM drives. */
728 if ((STRPREFIX (spec, "/dev/fd") && c_isdigit (spec[7])) ||
729 STREQ (spec, "/dev/floppy") ||
730 STREQ (spec, "/dev/cdrom"))
733 /* Resolve UUID= and LABEL= to the actual device. */
735 if (STRPREFIX (spec, "UUID="))
736 device = guestfs_findfs_uuid (g, &spec[5]);
737 else if (STRPREFIX (spec, "LABEL="))
738 device = guestfs_findfs_label (g, &spec[6]);
739 /* Ignore "/.swap" (Pardus) and pseudo-devices like "tmpfs". */
740 else if (STRPREFIX (spec, "/dev/"))
741 /* Resolve guest block device names. */
742 device = resolve_fstab_device (g, spec);
744 /* If we haven't resolved the device successfully by this point,
745 * we don't care, just ignore it.
750 char *mountpoint = safe_strdup (g, mp);
752 /* Add this to the fstab entry in 'fs'.
753 * Note these are further filtered by guestfs_inspect_get_mountpoints
754 * and guestfs_inspect_get_filesystems.
756 size_t n = fs->nr_fstab + 1;
757 struct inspect_fstab_entry *p;
759 p = realloc (fs->fstab, n * sizeof (struct inspect_fstab_entry));
761 perrorf (g, "realloc");
770 /* These are owned by the handle and freed by guestfs___free_inspect_info. */
771 fs->fstab[n-1].device = device;
772 fs->fstab[n-1].mountpoint = mountpoint;
775 fprintf (stderr, "fstab: device=%s mountpoint=%s\n", device, mountpoint);
780 /* Resolve block device name to the libguestfs device name, eg.
781 * /dev/xvdb1 => /dev/vdb1; and /dev/mapper/VG-LV => /dev/VG/LV. This
782 * assumes that disks were added in the same order as they appear to
783 * the real VM, which is a reasonable assumption to make. Return
784 * anything we don't recognize unchanged.
787 resolve_fstab_device (guestfs_h *g, const char *spec)
791 char *bsddisk, *bsdslice, *bsdpart;
793 if (STRPREFIX (spec, "/dev/mapper/")) {
794 /* LVM2 does some strange munging on /dev/mapper paths for VGs and
795 * LVs which contain '-' character:
797 * ><fs> lvcreate LV--test VG--test 32
798 * ><fs> debug ls /dev/mapper
799 * VG----test-LV----test
801 * This makes it impossible to reverse those paths directly, so
802 * we have implemented lvm_canonical_lv_name in the daemon.
804 device = guestfs_lvm_canonical_lv_name (g, spec);
806 else if ((a1 = match1 (g, spec, re_xdev)) != NULL) {
807 char **devices = guestfs_list_devices (g);
812 for (count = 0; devices[count] != NULL; count++)
815 size_t i = a1[0] - 'a'; /* a1[0] is always [a-z] because of regex. */
817 size_t len = strlen (devices[i]) + strlen (a1) + 16;
818 device = safe_malloc (g, len);
819 snprintf (device, len, "%s%s", devices[i], &a1[1]);
823 guestfs___free_string_list (devices);
825 else if (match3 (g, spec, re_freebsd, &bsddisk, &bsdslice, &bsdpart)) {
826 /* FreeBSD disks are organized quite differently. See:
827 * http://www.freebsd.org/doc/handbook/disk-organization.html
828 * FreeBSD "partitions" are exposed as quasi-extended partitions
829 * numbered from 5 in Linux. I have no idea what happens when you
830 * have multiple "slices" (the FreeBSD term for MBR partitions).
832 int disk = parse_unsigned_int (g, bsddisk);
833 int slice = parse_unsigned_int (g, bsdslice);
834 int part = bsdpart[0] - 'a' /* counting from 0 */;
839 if (disk == -1 || disk > 26 ||
840 slice <= 0 || slice > 1 /* > 4 .. see comment above */ ||
841 part < 0 || part >= 26)
844 device = safe_asprintf (g, "/dev/sd%c%d", disk + 'a', part + 5);
848 /* Didn't match device pattern, return original spec unchanged. */
850 device = safe_strdup (g, spec);
855 /* XXX Handling of boot.ini in the Perl version was pretty broken. It
856 * essentially didn't do anything for modern Windows guests.
857 * Therefore I've omitted all that code.
860 check_windows_root (guestfs_h *g, struct inspect_fs *fs)
862 fs->type = OS_TYPE_WINDOWS;
863 fs->distro = OS_DISTRO_WINDOWS;
865 /* Try to find Windows systemroot using some common locations. */
866 const char *systemroots[] =
867 { "/windows", "/winnt", "/win32", "/win" };
869 char *systemroot = NULL;
871 systemroot == NULL && i < sizeof systemroots / sizeof systemroots[0];
873 systemroot = resolve_windows_path_silently (g, systemroots[i]);
877 error (g, _("cannot resolve Windows %%SYSTEMROOT%%"));
882 fprintf (stderr, "windows %%SYSTEMROOT%% = %s", systemroot);
884 /* Freed by guestfs___free_inspect_info. */
885 fs->windows_systemroot = systemroot;
887 if (check_windows_arch (g, fs) == -1)
890 if (check_windows_registry (g, fs) == -1)
893 check_package_format (g, fs);
894 check_package_management (g, fs);
900 check_windows_arch (guestfs_h *g, struct inspect_fs *fs)
902 size_t len = strlen (fs->windows_systemroot) + 32;
904 snprintf (cmd_exe, len, "%s/system32/cmd.exe", fs->windows_systemroot);
906 char *cmd_exe_path = resolve_windows_path_silently (g, cmd_exe);
910 char *arch = guestfs_file_architecture (g, cmd_exe_path);
914 fs->arch = arch; /* freed by guestfs___free_inspect_info */
919 /* At the moment, pull just the ProductName and version numbers from
920 * the registry. In future there is a case for making many more
921 * registry fields available to callers.
924 check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
926 TMP_TEMPLATE_ON_STACK (software_local);
928 size_t len = strlen (fs->windows_systemroot) + 64;
930 snprintf (software, len, "%s/system32/config/software",
931 fs->windows_systemroot);
933 char *software_path = resolve_windows_path_silently (g, software);
935 /* If the software hive doesn't exist, just accept that we cannot
936 * find product_name etc.
942 hive_value_h *values = NULL;
944 if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
947 h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
949 perrorf (g, "hivex_open");
953 hive_node_h node = hivex_root (h);
954 const char *hivepath[] =
955 { "Microsoft", "Windows NT", "CurrentVersion" };
958 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
960 node = hivex_node_get_child (h, node, hivepath[i]);
964 perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion");
968 values = hivex_node_values (h, node);
970 for (i = 0; values[i] != 0; ++i) {
971 char *key = hivex_value_key (h, values[i]);
973 perrorf (g, "hivex_value_key");
977 if (STRCASEEQ (key, "ProductName")) {
978 fs->product_name = hivex_value_string (h, values[i]);
979 if (!fs->product_name) {
980 perrorf (g, "hivex_value_string");
985 else if (STRCASEEQ (key, "CurrentVersion")) {
986 char *version = hivex_value_string (h, values[i]);
988 perrorf (g, "hivex_value_string");
993 if (match2 (g, version, re_windows_version, &major, &minor)) {
994 fs->major_version = parse_unsigned_int (g, major);
996 if (fs->major_version == -1) {
1002 fs->minor_version = parse_unsigned_int (g, minor);
1004 if (fs->minor_version == -1) {
1020 if (h) hivex_close (h);
1022 free (software_path);
1024 /* Free up the temporary file. */
1025 unlink (software_local);
1026 #undef software_local_len
1032 resolve_windows_path_silently (guestfs_h *g, const char *path)
1034 guestfs_error_handler_cb old_error_cb = g->error_cb;
1036 char *ret = guestfs_case_sensitive_path (g, path);
1037 g->error_cb = old_error_cb;
1042 extend_fses (guestfs_h *g)
1044 size_t n = g->nr_fses + 1;
1045 struct inspect_fs *p;
1047 p = realloc (g->fses, n * sizeof (struct inspect_fs));
1049 perrorf (g, "realloc");
1056 memset (&g->fses[n-1], 0, sizeof (struct inspect_fs));
1061 /* Parse small, unsigned ints, as used in version numbers. */
1063 parse_unsigned_int (guestfs_h *g, const char *str)
1066 int r = xstrtol (str, NULL, 10, &ret, "");
1067 if (r != LONGINT_OK) {
1068 error (g, _("could not parse integer in version number: %s"), str);
1074 /* At the moment, package format and package management is just a
1075 * simple function of the distro and major_version fields, so these
1076 * can never return an error. We might be cleverer in future.
1079 check_package_format (guestfs_h *g, struct inspect_fs *fs)
1081 switch (fs->distro) {
1082 case OS_DISTRO_FEDORA:
1083 case OS_DISTRO_MEEGO:
1084 case OS_DISTRO_REDHAT_BASED:
1085 case OS_DISTRO_RHEL:
1086 case OS_DISTRO_MANDRIVA:
1087 fs->package_format = OS_PACKAGE_FORMAT_RPM;
1090 case OS_DISTRO_DEBIAN:
1091 case OS_DISTRO_UBUNTU:
1092 case OS_DISTRO_LINUX_MINT:
1093 fs->package_format = OS_PACKAGE_FORMAT_DEB;
1096 case OS_DISTRO_ARCHLINUX:
1097 fs->package_format = OS_PACKAGE_FORMAT_PACMAN;
1099 case OS_DISTRO_GENTOO:
1100 fs->package_format = OS_PACKAGE_FORMAT_EBUILD;
1102 case OS_DISTRO_PARDUS:
1103 fs->package_format = OS_PACKAGE_FORMAT_PISI;
1106 case OS_DISTRO_WINDOWS:
1107 case OS_DISTRO_UNKNOWN:
1109 fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN;
1115 check_package_management (guestfs_h *g, struct inspect_fs *fs)
1117 switch (fs->distro) {
1118 case OS_DISTRO_FEDORA:
1119 case OS_DISTRO_MEEGO:
1120 fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
1123 case OS_DISTRO_REDHAT_BASED:
1124 case OS_DISTRO_RHEL:
1125 if (fs->major_version >= 5)
1126 fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
1128 fs->package_management = OS_PACKAGE_MANAGEMENT_UP2DATE;
1131 case OS_DISTRO_DEBIAN:
1132 case OS_DISTRO_UBUNTU:
1133 case OS_DISTRO_LINUX_MINT:
1134 fs->package_management = OS_PACKAGE_MANAGEMENT_APT;
1137 case OS_DISTRO_ARCHLINUX:
1138 fs->package_management = OS_PACKAGE_MANAGEMENT_PACMAN;
1140 case OS_DISTRO_GENTOO:
1141 fs->package_management = OS_PACKAGE_MANAGEMENT_PORTAGE;
1143 case OS_DISTRO_PARDUS:
1144 fs->package_management = OS_PACKAGE_MANAGEMENT_PISI;
1146 case OS_DISTRO_MANDRIVA:
1147 fs->package_management = OS_PACKAGE_MANAGEMENT_URPMI;
1150 case OS_DISTRO_WINDOWS:
1151 case OS_DISTRO_UNKNOWN:
1153 fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN;
1158 static struct inspect_fs *
1159 search_for_root (guestfs_h *g, const char *root)
1161 if (g->nr_fses == 0) {
1162 error (g, _("no inspection data: call guestfs_inspect_os first"));
1167 struct inspect_fs *fs;
1168 for (i = 0; i < g->nr_fses; ++i) {
1170 if (fs->is_root && STREQ (root, fs->device))
1174 error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"),
1180 guestfs__inspect_get_roots (guestfs_h *g)
1182 /* NB. Doesn't matter if g->nr_fses == 0. We just return an empty
1183 * list in this case.
1188 for (i = 0; i < g->nr_fses; ++i)
1189 if (g->fses[i].is_root)
1192 char **ret = calloc (count+1, sizeof (char *));
1194 perrorf (g, "calloc");
1199 for (i = 0; i < g->nr_fses; ++i) {
1200 if (g->fses[i].is_root) {
1201 ret[count] = safe_strdup (g, g->fses[i].device);
1211 guestfs__inspect_get_type (guestfs_h *g, const char *root)
1213 struct inspect_fs *fs = search_for_root (g, root);
1219 case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
1220 case OS_TYPE_WINDOWS: ret = safe_strdup (g, "windows"); break;
1221 case OS_TYPE_FREEBSD: ret = safe_strdup (g, "freebsd"); break;
1222 case OS_TYPE_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1229 guestfs__inspect_get_arch (guestfs_h *g, const char *root)
1231 struct inspect_fs *fs = search_for_root (g, root);
1235 return safe_strdup (g, fs->arch ? : "unknown");
1239 guestfs__inspect_get_distro (guestfs_h *g, const char *root)
1241 struct inspect_fs *fs = search_for_root (g, root);
1246 switch (fs->distro) {
1247 case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break;
1248 case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
1249 case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
1250 case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
1251 case OS_DISTRO_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
1252 case OS_DISTRO_MANDRIVA: ret = safe_strdup (g, "mandriva"); break;
1253 case OS_DISTRO_MEEGO: ret = safe_strdup (g, "meego"); break;
1254 case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
1255 case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
1256 case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); break;
1257 case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break;
1258 case OS_DISTRO_UBUNTU: ret = safe_strdup (g, "ubuntu"); break;
1259 case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1266 guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
1268 struct inspect_fs *fs = search_for_root (g, root);
1272 return fs->major_version;
1276 guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
1278 struct inspect_fs *fs = search_for_root (g, root);
1282 return fs->minor_version;
1286 guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
1288 struct inspect_fs *fs = search_for_root (g, root);
1292 return safe_strdup (g, fs->product_name ? : "unknown");
1296 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
1298 struct inspect_fs *fs = search_for_root (g, root);
1302 if (!fs->windows_systemroot) {
1303 error (g, _("not a Windows guest, or systemroot could not be determined"));
1307 return safe_strdup (g, fs->windows_systemroot);
1311 guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
1313 struct inspect_fs *fs = search_for_root (g, root);
1319 /* If no fstab information (Windows) return just the root. */
1320 if (fs->nr_fstab == 0) {
1321 ret = calloc (3, sizeof (char *));
1322 ret[0] = safe_strdup (g, "/");
1323 ret[1] = safe_strdup (g, root);
1328 #define CRITERION fs->fstab[i].mountpoint[0] == '/'
1329 size_t i, count = 0;
1330 for (i = 0; i < fs->nr_fstab; ++i)
1334 /* Hashtables have 2N+1 entries. */
1335 ret = calloc (2*count+1, sizeof (char *));
1337 perrorf (g, "calloc");
1342 for (i = 0; i < fs->nr_fstab; ++i)
1344 ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint);
1345 ret[2*count+1] = safe_strdup (g, fs->fstab[i].device);
1354 guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
1356 struct inspect_fs *fs = search_for_root (g, root);
1362 /* If no fstab information (Windows) return just the root. */
1363 if (fs->nr_fstab == 0) {
1364 ret = calloc (2, sizeof (char *));
1365 ret[0] = safe_strdup (g, root);
1370 ret = calloc (fs->nr_fstab + 1, sizeof (char *));
1372 perrorf (g, "calloc");
1377 for (i = 0; i < fs->nr_fstab; ++i)
1378 ret[i] = safe_strdup (g, fs->fstab[i].device);
1384 guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
1386 struct inspect_fs *fs = search_for_root (g, root);
1391 switch (fs->package_format) {
1392 case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break;
1393 case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break;
1394 case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break;
1395 case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break;
1396 case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break;
1397 case OS_PACKAGE_FORMAT_UNKNOWN:
1399 ret = safe_strdup (g, "unknown");
1407 guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
1409 struct inspect_fs *fs = search_for_root (g, root);
1414 switch (fs->package_management) {
1415 case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break;
1416 case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break;
1417 case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break;
1418 case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
1419 case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
1420 case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
1421 case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break;
1422 case OS_PACKAGE_MANAGEMENT_UNKNOWN:
1424 ret = safe_strdup (g, "unknown");
1431 static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
1432 static struct guestfs_application_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs);
1433 static struct guestfs_application_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs);
1434 static void add_application (guestfs_h *g, struct guestfs_application_list *, const char *name, const char *display_name, int32_t epoch, const char *version, const char *release, const char *install_path, const char *publisher, const char *url, const char *description);
1435 static void sort_applications (struct guestfs_application_list *);
1437 /* Unlike the simple inspect-get-* calls, this one assumes that the
1438 * disks are mounted up, and reads files from the mounted disks.
1440 struct guestfs_application_list *
1441 guestfs__inspect_list_applications (guestfs_h *g, const char *root)
1443 struct inspect_fs *fs = search_for_root (g, root);
1447 struct guestfs_application_list *ret = NULL;
1451 switch (fs->package_format) {
1452 case OS_PACKAGE_FORMAT_RPM:
1453 ret = list_applications_rpm (g, fs);
1458 case OS_PACKAGE_FORMAT_DEB:
1459 ret = list_applications_deb (g, fs);
1464 case OS_PACKAGE_FORMAT_PACMAN:
1465 case OS_PACKAGE_FORMAT_EBUILD:
1466 case OS_PACKAGE_FORMAT_PISI:
1467 case OS_PACKAGE_FORMAT_UNKNOWN:
1469 /* nothing - keep GCC happy */;
1473 case OS_TYPE_WINDOWS:
1474 ret = list_applications_windows (g, fs);
1479 case OS_TYPE_FREEBSD:
1480 case OS_TYPE_UNKNOWN:
1482 /* nothing - keep GCC happy */;
1486 /* Don't know how to do inspection. Not an error, return an
1489 ret = safe_malloc (g, sizeof *ret);
1494 sort_applications (ret);
1499 static struct guestfs_application_list *
1500 list_applications_rpm (guestfs_h *g, struct inspect_fs *fs)
1502 TMP_TEMPLATE_ON_STACK (tmpfile);
1504 if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, 10000000) == -1)
1507 struct guestfs_application_list *apps = NULL, *ret = NULL;
1508 #define cmd_len (strlen (tmpfile) + 64)
1514 snprintf (cmd, cmd_len, "db_dump -p '%s'", tmpfile);
1517 fprintf (stderr, "list_applications_rpm: %s\n", cmd);
1519 pp = popen (cmd, "r");
1521 perrorf (g, "popen: %s", cmd);
1525 /* Ignore everything to end-of-header marker. */
1527 if (fgets (line, sizeof line, pp) == NULL) {
1528 error (g, _("unexpected end of output from db_dump command"));
1532 len = strlen (line);
1533 if (len > 0 && line[len-1] == '\n') {
1538 if (STREQ (line, "HEADER=END"))
1542 /* Allocate 'apps' list. */
1543 apps = safe_malloc (g, sizeof *apps);
1547 /* Read alternate lines until end of data marker. */
1549 if (fgets (line, sizeof line, pp) == NULL) {
1550 error (g, _("unexpected end of output from db_dump command"));
1554 len = strlen (line);
1555 if (len > 0 && line[len-1] == '\n') {
1560 if (STREQ (line, "DATA=END"))
1564 if (len > 0 && line[0] == ' ')
1566 /* Ignore any application name that contains non-printable chars.
1567 * In the db_dump output these would be escaped with backslash, so
1568 * we can just ignore any such line.
1570 if (strchr (p, '\\') == NULL)
1571 add_application (g, apps, p, "", 0, "", "", "", "", "", "");
1573 /* Discard next line. */
1574 if (fgets (line, sizeof line, pp) == NULL) {
1575 error (g, _("unexpected end of output from db_dump command"));
1580 /* Catch errors from the db_dump command. */
1581 if (pclose (pp) == -1) {
1582 perrorf (g, "pclose: %s", cmd);
1590 if (ret == NULL && apps != NULL)
1591 guestfs_free_application_list (apps);
1600 static struct guestfs_application_list *
1601 list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
1603 TMP_TEMPLATE_ON_STACK (tmpfile);
1605 if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile, 10000000) == -1)
1608 struct guestfs_application_list *apps = NULL, *ret = NULL;
1612 char *name = NULL, *version = NULL, *release = NULL;
1613 int installed_flag = 0;
1615 fp = fopen (tmpfile, "r");
1617 perrorf (g, "fopen: %s", tmpfile);
1621 /* Allocate 'apps' list. */
1622 apps = safe_malloc (g, sizeof *apps);
1626 /* Read the temporary file. Each package entry is separated by
1628 * XXX Strictly speaking this is in mailbox header format, so it
1629 * would be possible for fields to spread across multiple lines,
1630 * although for the short fields that we are concerned about this is
1631 * unlikely and not seen in practice.
1633 while (fgets (line, sizeof line, fp) != NULL) {
1634 len = strlen (line);
1635 if (len > 0 && line[len-1] == '\n') {
1640 if (STRPREFIX (line, "Package: ")) {
1642 name = safe_strdup (g, &line[9]);
1644 else if (STRPREFIX (line, "Status: ")) {
1645 installed_flag = strstr (&line[8], "installed") != NULL;
1647 else if (STRPREFIX (line, "Version: ")) {
1650 char *p = strchr (&line[9], '-');
1653 version = safe_strdup (g, &line[9]);
1654 release = safe_strdup (g, p+1);
1656 version = safe_strdup (g, &line[9]);
1660 else if (STREQ (line, "")) {
1661 if (installed_flag && name && version)
1662 add_application (g, apps, name, "", 0, version, release ? : "",
1667 name = version = release = NULL;
1672 if (fclose (fp) == -1) {
1673 perrorf (g, "fclose: %s", tmpfile);
1681 if (ret == NULL && apps != NULL)
1682 guestfs_free_application_list (apps);
1692 /* XXX We already download the SOFTWARE hive when doing general
1693 * inspection. We could avoid this second download of the same file
1694 * by caching these entries in the handle.
1696 static struct guestfs_application_list *
1697 list_applications_windows (guestfs_h *g, struct inspect_fs *fs)
1699 TMP_TEMPLATE_ON_STACK (software_local);
1701 size_t len = strlen (fs->windows_systemroot) + 64;
1703 snprintf (software, len, "%s/system32/config/software",
1704 fs->windows_systemroot);
1706 char *software_path = resolve_windows_path_silently (g, software);
1708 /* If the software hive doesn't exist, just accept that we cannot
1709 * find product_name etc.
1713 struct guestfs_application_list *apps = NULL, *ret = NULL;
1715 hive_node_h *children = NULL;
1717 if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
1720 h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
1722 perrorf (g, "hivex_open");
1726 hive_node_h node = hivex_root (h);
1727 const char *hivepath[] =
1728 { "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
1731 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
1733 node = hivex_node_get_child (h, node, hivepath[i]);
1737 perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");
1741 children = hivex_node_children (h, node);
1742 if (children == NULL) {
1743 perrorf (g, "hivex_node_children");
1747 /* Allocate 'apps' list. */
1748 apps = safe_malloc (g, sizeof *apps);
1752 /* Consider any child node that has a DisplayName key.
1754 * http://nsis.sourceforge.net/Add_uninstall_information_to_Add/Remove_Programs#Optional_values
1756 for (i = 0; children[i] != 0; ++i) {
1759 char *display_name = NULL;
1760 char *version = NULL;
1761 char *install_path = NULL;
1762 char *publisher = NULL;
1764 char *comments = NULL;
1766 /* Use the node name as a proxy for the package name in Linux. The
1767 * display name is not language-independent, so it cannot be used.
1769 name = hivex_node_name (h, children[i]);
1771 perrorf (g, "hivex_node_get_name");
1775 value = hivex_node_get_value (h, children[i], "DisplayName");
1777 display_name = hivex_value_string (h, value);
1779 value = hivex_node_get_value (h, children[i], "DisplayVersion");
1781 version = hivex_value_string (h, value);
1782 value = hivex_node_get_value (h, children[i], "InstallLocation");
1784 install_path = hivex_value_string (h, value);
1785 value = hivex_node_get_value (h, children[i], "Publisher");
1787 publisher = hivex_value_string (h, value);
1788 value = hivex_node_get_value (h, children[i], "URLInfoAbout");
1790 url = hivex_value_string (h, value);
1791 value = hivex_node_get_value (h, children[i], "Comments");
1793 comments = hivex_value_string (h, value);
1795 add_application (g, apps, name, display_name, 0,
1798 install_path ? : "",
1806 free (display_name);
1808 free (install_path);
1817 if (ret == NULL && apps != NULL)
1818 guestfs_free_application_list (apps);
1819 if (h) hivex_close (h);
1821 free (software_path);
1823 /* Free up the temporary file. */
1824 unlink (software_local);
1825 #undef software_local_len
1831 add_application (guestfs_h *g, struct guestfs_application_list *apps,
1832 const char *name, const char *display_name, int32_t epoch,
1833 const char *version, const char *release,
1834 const char *install_path,
1835 const char *publisher, const char *url,
1836 const char *description)
1839 apps->val = safe_realloc (g, apps->val,
1840 apps->len * sizeof (struct guestfs_application));
1841 apps->val[apps->len-1].app_name = safe_strdup (g, name);
1842 apps->val[apps->len-1].app_display_name = safe_strdup (g, display_name);
1843 apps->val[apps->len-1].app_epoch = epoch;
1844 apps->val[apps->len-1].app_version = safe_strdup (g, version);
1845 apps->val[apps->len-1].app_release = safe_strdup (g, release);
1846 apps->val[apps->len-1].app_install_path = safe_strdup (g, install_path);
1847 /* XXX Translated path is not implemented yet. */
1848 apps->val[apps->len-1].app_trans_path = safe_strdup (g, "");
1849 apps->val[apps->len-1].app_publisher = safe_strdup (g, publisher);
1850 apps->val[apps->len-1].app_url = safe_strdup (g, url);
1851 /* XXX The next two are not yet implemented for any package
1852 * format, but we could easily support them for rpm and deb.
1854 apps->val[apps->len-1].app_source_package = safe_strdup (g, "");
1855 apps->val[apps->len-1].app_summary = safe_strdup (g, "");
1856 apps->val[apps->len-1].app_description = safe_strdup (g, description);
1859 /* Sort applications by name before returning the list. */
1861 compare_applications (const void *vp1, const void *vp2)
1863 const struct guestfs_application *v1 = vp1;
1864 const struct guestfs_application *v2 = vp2;
1866 return strcmp (v1->app_name, v2->app_name);
1870 sort_applications (struct guestfs_application_list *apps)
1872 if (apps && apps->val)
1873 qsort (apps->val, apps->len, sizeof (struct guestfs_application),
1874 compare_applications);
1877 /* Download to a guest file to a local temporary file. Refuse to
1878 * download the guest file if it is larger than max_size. The caller
1879 * is responsible for deleting the temporary file after use.
1882 download_to_tmp (guestfs_h *g, const char *filename,
1883 char *localtmp, int64_t max_size)
1889 size = guestfs_filesize (g, filename);
1891 /* guestfs_filesize failed and has already set error in handle */
1893 if (size > max_size) {
1894 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
1899 fd = mkstemp (localtmp);
1901 perrorf (g, "mkstemp");
1905 snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
1907 if (guestfs_download (g, filename, buf) == -1) {
1913 if (close (fd) == -1) {
1914 perrorf (g, "close: %s", localtmp);
1922 /* Call 'f' with Augeas opened and having parsed 'filename' (this file
1923 * must exist). As a security measure, this bails if the file is too
1924 * large for a reasonable configuration file. After the call to 'f'
1928 inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename,
1929 int (*f) (guestfs_h *, struct inspect_fs *))
1931 /* Security: Refuse to do this if filename is too large. */
1932 int64_t size = guestfs_filesize (g, filename);
1934 /* guestfs_filesize failed and has already set error in handle */
1936 if (size > 100000) {
1937 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
1942 /* If !feature_available (g, "augeas") then the next call will fail.
1943 * Arguably we might want to fall back to a non-Augeas method in
1946 if (guestfs_aug_init (g, "/", 16|32) == -1)
1951 /* Tell Augeas to only load one file (thanks Raphaƫl Pinson). */
1952 char buf[strlen (filename) + 64];
1953 snprintf (buf, strlen (filename) + 64, "/augeas/load//incl[. != \"%s\"]",
1955 if (guestfs_aug_rm (g, buf) == -1)
1958 if (guestfs_aug_load (g) == -1)
1964 guestfs_aug_close (g);
1969 #else /* no PCRE or hivex at compile time */
1971 /* XXX These functions should be in an optgroup. */
1973 #define NOT_IMPL(r) \
1974 error (g, _("inspection API not available since this version of libguestfs was compiled without PCRE or hivex libraries")); \
1978 guestfs__inspect_os (guestfs_h *g)
1984 guestfs__inspect_get_roots (guestfs_h *g)
1990 guestfs__inspect_get_type (guestfs_h *g, const char *root)
1996 guestfs__inspect_get_arch (guestfs_h *g, const char *root)
2002 guestfs__inspect_get_distro (guestfs_h *g, const char *root)
2008 guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
2014 guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
2020 guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
2026 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
2032 guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
2038 guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
2044 guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
2050 guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
2055 struct guestfs_application_list *
2056 guestfs__inspect_list_applications (guestfs_h *g, const char *root)
2061 #endif /* no PCRE or hivex at compile time */
2064 guestfs___free_inspect_info (guestfs_h *g)
2067 for (i = 0; i < g->nr_fses; ++i) {
2068 free (g->fses[i].device);
2069 free (g->fses[i].product_name);
2070 free (g->fses[i].arch);
2071 free (g->fses[i].windows_systemroot);
2073 for (j = 0; j < g->fses[i].nr_fstab; ++j) {
2074 free (g->fses[i].fstab[j].device);
2075 free (g->fses[i].fstab[j].mountpoint);
2077 free (g->fses[i].fstab);
2084 /* In the Perl code this is a public function. */
2086 guestfs___feature_available (guestfs_h *g, const char *feature)
2088 /* If there's an error we should ignore it, so to do that we have to
2089 * temporarily replace the error handler with a null one.
2091 guestfs_error_handler_cb old_error_cb = g->error_cb;
2094 const char *groups[] = { feature, NULL };
2095 int r = guestfs_available (g, (char * const *) groups);
2097 g->error_cb = old_error_cb;
2099 return r == 0 ? 1 : 0;
2104 /* Match a regular expression which contains no captures. Returns
2105 * true if it matches or false if it doesn't.
2108 guestfs___match (guestfs_h *g, const char *str, const pcre *re)
2110 size_t len = strlen (str);
2113 r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
2114 if (r == PCRE_ERROR_NOMATCH)
2117 /* Internal error -- should not happen. */
2118 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2119 __FILE__, __func__, r, str);
2126 /* Match a regular expression which contains exactly one capture. If
2127 * the string matches, return the capture, otherwise return NULL. The
2128 * caller must free the result.
2131 guestfs___match1 (guestfs_h *g, const char *str, const pcre *re)
2133 size_t len = strlen (str);
2136 r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
2137 if (r == PCRE_ERROR_NOMATCH)
2140 /* Internal error -- should not happen. */
2141 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2142 __FILE__, __func__, r, str);
2146 return safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2149 /* Match a regular expression which contains exactly two captures. */
2151 guestfs___match2 (guestfs_h *g, const char *str, const pcre *re,
2152 char **ret1, char **ret2)
2154 size_t len = strlen (str);
2157 r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
2158 if (r == PCRE_ERROR_NOMATCH)
2161 /* Internal error -- should not happen. */
2162 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2163 __FILE__, __func__, r, str);
2167 *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2168 *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
2173 /* Match a regular expression which contains exactly three captures. */
2175 guestfs___match3 (guestfs_h *g, const char *str, const pcre *re,
2176 char **ret1, char **ret2, char **ret3)
2178 size_t len = strlen (str);
2181 r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
2182 if (r == PCRE_ERROR_NOMATCH)
2185 /* Internal error -- should not happen. */
2186 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2187 __FILE__, __func__, r, str);
2191 *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2192 *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
2193 *ret3 = safe_strndup (g, &str[vec[6]], vec[7]-vec[6]);
2198 #endif /* HAVE_PCRE */