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 *));
212 static char *first_line_of_file (guestfs_h *g, const char *filename);
215 check_for_filesystem_on (guestfs_h *g, const char *device)
217 /* Get vfs-type in order to check if it's a Linux(?) swap device.
218 * If there's an error we should ignore it, so to do that we have to
219 * temporarily replace the error handler with a null one.
221 guestfs_error_handler_cb old_error_cb = g->error_cb;
223 char *vfs_type = guestfs_vfs_type (g, device);
224 g->error_cb = old_error_cb;
226 int is_swap = vfs_type && STREQ (vfs_type, "swap");
229 fprintf (stderr, "check_for_filesystem_on: %s (%s)\n",
230 device, vfs_type ? vfs_type : "failed to get vfs type");
234 if (extend_fses (g) == -1)
236 g->fses[g->nr_fses-1].is_swap = 1;
240 /* Try mounting the device. As above, ignore errors. */
242 int r = guestfs_mount_ro (g, device, "/");
243 if (r == -1 && vfs_type && STREQ (vfs_type, "ufs")) /* Hack for the *BSDs. */
244 r = guestfs_mount_vfs (g, "ro,ufstype=ufs2", "ufs", device, "/");
246 g->error_cb = old_error_cb;
250 /* Do the rest of the checks. */
251 r = check_filesystem (g, device);
253 /* Unmount the filesystem. */
254 if (guestfs_umount_all (g) == -1)
261 check_filesystem (guestfs_h *g, const char *device)
263 if (extend_fses (g) == -1)
266 struct inspect_fs *fs = &g->fses[g->nr_fses-1];
268 fs->device = safe_strdup (g, device);
269 fs->is_mountable = 1;
271 /* Optimize some of the tests by avoiding multiple tests of the same thing. */
272 int is_dir_etc = guestfs_is_dir (g, "/etc") > 0;
273 int is_dir_bin = guestfs_is_dir (g, "/bin") > 0;
274 int is_dir_share = guestfs_is_dir (g, "/share") > 0;
277 if (guestfs_is_file (g, "/grub/menu.lst") > 0 ||
278 guestfs_is_file (g, "/grub/grub.conf") > 0)
279 fs->content = FS_CONTENT_LINUX_BOOT;
281 else if (is_dir_etc &&
283 guestfs_is_file (g, "/etc/freebsd-update.conf") > 0 &&
284 guestfs_is_file (g, "/etc/fstab") > 0) {
285 /* Ignore /dev/sda1 which is a shadow of the real root filesystem
286 * that is probably /dev/sda5 (see:
287 * http://www.freebsd.org/doc/handbook/disk-organization.html)
289 if (match (g, device, re_first_partition))
293 fs->content = FS_CONTENT_FREEBSD_ROOT;
294 if (check_freebsd_root (g, fs) == -1)
298 else if (is_dir_etc &&
300 guestfs_is_file (g, "/etc/fstab") > 0) {
302 fs->content = FS_CONTENT_LINUX_ROOT;
303 if (check_linux_root (g, fs) == -1)
306 /* Linux /usr/local? */
307 else if (is_dir_etc &&
310 guestfs_exists (g, "/local") == 0 &&
311 guestfs_is_file (g, "/etc/fstab") == 0)
312 fs->content = FS_CONTENT_LINUX_USR_LOCAL;
314 else if (is_dir_etc &&
317 guestfs_exists (g, "/local") > 0 &&
318 guestfs_is_file (g, "/etc/fstab") == 0)
319 fs->content = FS_CONTENT_LINUX_USR;
321 else if (guestfs_is_dir (g, "/log") > 0 &&
322 guestfs_is_dir (g, "/run") > 0 &&
323 guestfs_is_dir (g, "/spool") > 0)
324 fs->content = FS_CONTENT_LINUX_VAR;
326 else if (guestfs_is_file (g, "/AUTOEXEC.BAT") > 0 ||
327 guestfs_is_file (g, "/autoexec.bat") > 0 ||
328 guestfs_is_dir (g, "/Program Files") > 0 ||
329 guestfs_is_dir (g, "/WINDOWS") > 0 ||
330 guestfs_is_dir (g, "/Windows") > 0 ||
331 guestfs_is_dir (g, "/windows") > 0 ||
332 guestfs_is_dir (g, "/WIN32") > 0 ||
333 guestfs_is_dir (g, "/Win32") > 0 ||
334 guestfs_is_dir (g, "/WINNT") > 0 ||
335 guestfs_is_file (g, "/boot.ini") > 0 ||
336 guestfs_is_file (g, "/ntldr") > 0) {
338 fs->content = FS_CONTENT_WINDOWS_ROOT;
339 if (check_windows_root (g, fs) == -1)
346 /* Set fs->product_name to the first line of the release file. */
348 parse_release_file (guestfs_h *g, struct inspect_fs *fs,
349 const char *release_filename)
351 fs->product_name = first_line_of_file (g, release_filename);
352 if (fs->product_name == NULL)
357 /* Parse generic MAJOR.MINOR from the fs->product_name string. */
359 parse_major_minor (guestfs_h *g, struct inspect_fs *fs)
363 if (match2 (g, fs->product_name, re_major_minor, &major, &minor)) {
364 fs->major_version = parse_unsigned_int (g, major);
366 if (fs->major_version == -1) {
370 fs->minor_version = parse_unsigned_int (g, minor);
372 if (fs->minor_version == -1)
378 /* Ubuntu has /etc/lsb-release containing:
379 * DISTRIB_ID=Ubuntu # Distro
380 * DISTRIB_RELEASE=10.04 # Version
381 * DISTRIB_CODENAME=lucid
382 * DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS" # Product name
384 * [Ubuntu-derived ...] Linux Mint was found to have this:
385 * DISTRIB_ID=LinuxMint
387 * DISTRIB_CODENAME=julia
388 * DISTRIB_DESCRIPTION="Linux Mint 10 Julia"
389 * Linux Mint also has /etc/linuxmint/info with more information,
390 * but we can use the LSB file.
393 * LSB_VERSION=lsb-4.0-amd64:lsb-4.0-noarch
394 * DISTRIB_ID=MandrivaLinux
395 * DISTRIB_RELEASE=2010.1
396 * DISTRIB_CODENAME=Henry_Farman
397 * DISTRIB_DESCRIPTION="Mandriva Linux 2010.1"
398 * Mandriva also has a normal release file called /etc/mandriva-release.
401 parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
407 lines = guestfs_head_n (g, 10, "/etc/lsb-release");
411 for (i = 0; lines[i] != NULL; ++i) {
412 if (fs->distro == 0 &&
413 STREQ (lines[i], "DISTRIB_ID=Ubuntu")) {
414 fs->distro = OS_DISTRO_UBUNTU;
417 else if (fs->distro == 0 &&
418 STREQ (lines[i], "DISTRIB_ID=LinuxMint")) {
419 fs->distro = OS_DISTRO_LINUX_MINT;
422 else if (fs->distro == 0 &&
423 STREQ (lines[i], "DISTRIB_ID=MandrivaLinux")) {
424 fs->distro = OS_DISTRO_MANDRIVA;
427 else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
429 if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) {
430 fs->major_version = parse_unsigned_int (g, major);
432 if (fs->major_version == -1) {
434 guestfs___free_string_list (lines);
437 fs->minor_version = parse_unsigned_int (g, minor);
439 if (fs->minor_version == -1) {
440 guestfs___free_string_list (lines);
445 else if (fs->product_name == NULL &&
446 (STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=\"") ||
447 STRPREFIX (lines[i], "DISTRIB_DESCRIPTION='"))) {
448 size_t len = strlen (lines[i]) - 21 - 1;
449 fs->product_name = safe_strndup (g, &lines[i][21], len);
452 else if (fs->product_name == NULL &&
453 STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=")) {
454 size_t len = strlen (lines[i]) - 20;
455 fs->product_name = safe_strndup (g, &lines[i][20], len);
460 guestfs___free_string_list (lines);
464 /* The currently mounted device is known to be a Linux root. Try to
465 * determine from this the distro, version, etc. Also parse
466 * /etc/fstab to determine the arrangement of mountpoints and
467 * associated devices.
470 check_linux_root (guestfs_h *g, struct inspect_fs *fs)
474 fs->type = OS_TYPE_LINUX;
476 if (guestfs_exists (g, "/etc/lsb-release") > 0) {
477 r = parse_lsb_release (g, fs);
478 if (r == -1) /* error */
480 if (r == 1) /* ok - detected the release from this file */
481 goto skip_release_checks;
484 if (guestfs_exists (g, "/etc/redhat-release") > 0) {
485 fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */
487 if (parse_release_file (g, fs, "/etc/redhat-release") == -1)
491 if ((major = match1 (g, fs->product_name, re_fedora)) != NULL) {
492 fs->distro = OS_DISTRO_FEDORA;
493 fs->major_version = parse_unsigned_int (g, major);
495 if (fs->major_version == -1)
498 else if (match2 (g, fs->product_name, re_rhel_old, &major, &minor) ||
499 match2 (g, fs->product_name, re_rhel, &major, &minor)) {
500 fs->distro = OS_DISTRO_RHEL;
501 fs->major_version = parse_unsigned_int (g, major);
503 if (fs->major_version == -1) {
507 fs->minor_version = parse_unsigned_int (g, minor);
509 if (fs->minor_version == -1)
512 else if ((major = match1 (g, fs->product_name, re_rhel_no_minor)) != NULL) {
513 fs->distro = OS_DISTRO_RHEL;
514 fs->major_version = parse_unsigned_int (g, major);
516 if (fs->major_version == -1)
518 fs->minor_version = 0;
521 else if (guestfs_exists (g, "/etc/debian_version") > 0) {
522 fs->distro = OS_DISTRO_DEBIAN;
524 if (parse_release_file (g, fs, "/etc/debian_version") == -1)
527 if (parse_major_minor (g, fs) == -1)
530 else if (guestfs_exists (g, "/etc/pardus-release") > 0) {
531 fs->distro = OS_DISTRO_PARDUS;
533 if (parse_release_file (g, fs, "/etc/pardus-release") == -1)
536 if (parse_major_minor (g, fs) == -1)
539 else if (guestfs_exists (g, "/etc/arch-release") > 0) {
540 fs->distro = OS_DISTRO_ARCHLINUX;
542 /* /etc/arch-release file is empty and I can't see a way to
543 * determine the actual release or product string.
546 else if (guestfs_exists (g, "/etc/gentoo-release") > 0) {
547 fs->distro = OS_DISTRO_GENTOO;
549 if (parse_release_file (g, fs, "/etc/gentoo-release") == -1)
552 if (parse_major_minor (g, fs) == -1)
555 else if (guestfs_exists (g, "/etc/meego-release") > 0) {
556 fs->distro = OS_DISTRO_MEEGO;
558 if (parse_release_file (g, fs, "/etc/meego-release") == -1)
561 if (parse_major_minor (g, fs) == -1)
565 skip_release_checks:;
567 /* If distro test above was successful, work out the package format. */
568 check_package_format (g, fs);
569 check_package_management (g, fs);
571 /* Determine the architecture. */
572 check_architecture (g, fs);
574 /* We already know /etc/fstab exists because it's part of the test
575 * for Linux root above. We must now parse this file to determine
576 * which filesystems are used by the operating system and how they
579 if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
585 /* The currently mounted device is known to be a FreeBSD root. */
587 check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
591 fs->type = OS_TYPE_FREEBSD;
593 /* FreeBSD has no authoritative version file. The version number is
594 * in /etc/motd, which the system administrator might edit, but
595 * we'll use that anyway.
598 if (guestfs_exists (g, "/etc/motd") > 0) {
599 if (parse_release_file (g, fs, "/etc/motd") == -1)
602 if (parse_major_minor (g, fs) == -1)
606 /* Determine the architecture. */
607 check_architecture (g, fs);
609 /* We already know /etc/fstab exists because it's part of the test above. */
610 if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
617 check_architecture (guestfs_h *g, struct inspect_fs *fs)
619 const char *binaries[] =
620 { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" };
623 for (i = 0; i < sizeof binaries / sizeof binaries[0]; ++i) {
624 if (guestfs_is_file (g, binaries[i]) > 0) {
625 /* Ignore errors from file_architecture call. */
626 guestfs_error_handler_cb old_error_cb = g->error_cb;
628 char *arch = guestfs_file_architecture (g, binaries[i]);
629 g->error_cb = old_error_cb;
632 /* String will be owned by handle, freed by
633 * guestfs___free_inspect_info.
643 check_fstab (guestfs_h *g, struct inspect_fs *fs)
645 char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
649 if (lines[0] == NULL) {
650 error (g, _("could not parse /etc/fstab or empty file"));
651 guestfs___free_string_list (lines);
657 for (i = 0; lines[i] != NULL; ++i) {
658 /* Ignore comments. Only care about sequence lines which
661 if (match (g, lines[i], re_aug_seq)) {
662 snprintf (augpath, sizeof augpath, "%s/spec", lines[i]);
663 char *spec = guestfs_aug_get (g, augpath);
665 guestfs___free_string_list (lines);
669 snprintf (augpath, sizeof augpath, "%s/file", lines[i]);
670 char *mp = guestfs_aug_get (g, augpath);
672 guestfs___free_string_list (lines);
677 int r = add_fstab_entry (g, fs, spec, mp);
682 guestfs___free_string_list (lines);
688 guestfs___free_string_list (lines);
692 /* Add a filesystem and possibly a mountpoint entry for
693 * the root filesystem 'fs'.
695 * 'spec' is the fstab spec field, which might be a device name or a
696 * pseudodevice or 'UUID=...' or 'LABEL=...'.
698 * 'mp' is the mount point, which could also be 'swap' or 'none'.
701 add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
702 const char *spec, const char *mp)
704 /* Ignore certain mountpoints. */
705 if (STRPREFIX (mp, "/dev/") ||
706 STREQ (mp, "/dev") ||
707 STRPREFIX (mp, "/media/") ||
708 STRPREFIX (mp, "/proc/") ||
709 STREQ (mp, "/proc") ||
710 STRPREFIX (mp, "/selinux/") ||
711 STREQ (mp, "/selinux") ||
712 STRPREFIX (mp, "/sys/") ||
716 /* Ignore /dev/fd (floppy disks) (RHBZ#642929) and CD-ROM drives. */
717 if ((STRPREFIX (spec, "/dev/fd") && c_isdigit (spec[7])) ||
718 STREQ (spec, "/dev/floppy") ||
719 STREQ (spec, "/dev/cdrom"))
722 /* Resolve UUID= and LABEL= to the actual device. */
724 if (STRPREFIX (spec, "UUID="))
725 device = guestfs_findfs_uuid (g, &spec[5]);
726 else if (STRPREFIX (spec, "LABEL="))
727 device = guestfs_findfs_label (g, &spec[6]);
728 /* Ignore "/.swap" (Pardus) and pseudo-devices like "tmpfs". */
729 else if (STRPREFIX (spec, "/dev/"))
730 /* Resolve guest block device names. */
731 device = resolve_fstab_device (g, spec);
733 /* If we haven't resolved the device successfully by this point,
734 * we don't care, just ignore it.
739 char *mountpoint = safe_strdup (g, mp);
741 /* Add this to the fstab entry in 'fs'.
742 * Note these are further filtered by guestfs_inspect_get_mountpoints
743 * and guestfs_inspect_get_filesystems.
745 size_t n = fs->nr_fstab + 1;
746 struct inspect_fstab_entry *p;
748 p = realloc (fs->fstab, n * sizeof (struct inspect_fstab_entry));
750 perrorf (g, "realloc");
759 /* These are owned by the handle and freed by guestfs___free_inspect_info. */
760 fs->fstab[n-1].device = device;
761 fs->fstab[n-1].mountpoint = mountpoint;
764 fprintf (stderr, "fstab: device=%s mountpoint=%s\n", device, mountpoint);
769 /* Resolve block device name to the libguestfs device name, eg.
770 * /dev/xvdb1 => /dev/vdb1; and /dev/mapper/VG-LV => /dev/VG/LV. This
771 * assumes that disks were added in the same order as they appear to
772 * the real VM, which is a reasonable assumption to make. Return
773 * anything we don't recognize unchanged.
776 resolve_fstab_device (guestfs_h *g, const char *spec)
780 char *bsddisk, *bsdslice, *bsdpart;
782 if (STRPREFIX (spec, "/dev/mapper/")) {
783 /* LVM2 does some strange munging on /dev/mapper paths for VGs and
784 * LVs which contain '-' character:
786 * ><fs> lvcreate LV--test VG--test 32
787 * ><fs> debug ls /dev/mapper
788 * VG----test-LV----test
790 * This makes it impossible to reverse those paths directly, so
791 * we have implemented lvm_canonical_lv_name in the daemon.
793 device = guestfs_lvm_canonical_lv_name (g, spec);
795 else if ((a1 = match1 (g, spec, re_xdev)) != NULL) {
796 char **devices = guestfs_list_devices (g);
801 for (count = 0; devices[count] != NULL; count++)
804 size_t i = a1[0] - 'a'; /* a1[0] is always [a-z] because of regex. */
806 size_t len = strlen (devices[i]) + strlen (a1) + 16;
807 device = safe_malloc (g, len);
808 snprintf (device, len, "%s%s", devices[i], &a1[1]);
812 guestfs___free_string_list (devices);
814 else if (match3 (g, spec, re_freebsd, &bsddisk, &bsdslice, &bsdpart)) {
815 /* FreeBSD disks are organized quite differently. See:
816 * http://www.freebsd.org/doc/handbook/disk-organization.html
817 * FreeBSD "partitions" are exposed as quasi-extended partitions
818 * numbered from 5 in Linux. I have no idea what happens when you
819 * have multiple "slices" (the FreeBSD term for MBR partitions).
821 int disk = parse_unsigned_int (g, bsddisk);
822 int slice = parse_unsigned_int (g, bsdslice);
823 int part = bsdpart[0] - 'a' /* counting from 0 */;
828 if (disk == -1 || disk > 26 ||
829 slice <= 0 || slice > 1 /* > 4 .. see comment above */ ||
830 part < 0 || part >= 26)
833 device = safe_asprintf (g, "/dev/sd%c%d", disk + 'a', part + 5);
837 /* Didn't match device pattern, return original spec unchanged. */
839 device = safe_strdup (g, spec);
844 /* XXX Handling of boot.ini in the Perl version was pretty broken. It
845 * essentially didn't do anything for modern Windows guests.
846 * Therefore I've omitted all that code.
849 check_windows_root (guestfs_h *g, struct inspect_fs *fs)
851 fs->type = OS_TYPE_WINDOWS;
852 fs->distro = OS_DISTRO_WINDOWS;
854 /* Try to find Windows systemroot using some common locations. */
855 const char *systemroots[] =
856 { "/windows", "/winnt", "/win32", "/win" };
858 char *systemroot = NULL;
860 systemroot == NULL && i < sizeof systemroots / sizeof systemroots[0];
862 systemroot = resolve_windows_path_silently (g, systemroots[i]);
866 error (g, _("cannot resolve Windows %%SYSTEMROOT%%"));
871 fprintf (stderr, "windows %%SYSTEMROOT%% = %s", systemroot);
873 /* Freed by guestfs___free_inspect_info. */
874 fs->windows_systemroot = systemroot;
876 if (check_windows_arch (g, fs) == -1)
879 if (check_windows_registry (g, fs) == -1)
882 check_package_format (g, fs);
883 check_package_management (g, fs);
889 check_windows_arch (guestfs_h *g, struct inspect_fs *fs)
891 size_t len = strlen (fs->windows_systemroot) + 32;
893 snprintf (cmd_exe, len, "%s/system32/cmd.exe", fs->windows_systemroot);
895 char *cmd_exe_path = resolve_windows_path_silently (g, cmd_exe);
899 char *arch = guestfs_file_architecture (g, cmd_exe_path);
903 fs->arch = arch; /* freed by guestfs___free_inspect_info */
908 /* At the moment, pull just the ProductName and version numbers from
909 * the registry. In future there is a case for making many more
910 * registry fields available to callers.
913 check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
915 TMP_TEMPLATE_ON_STACK (software_local);
917 size_t len = strlen (fs->windows_systemroot) + 64;
919 snprintf (software, len, "%s/system32/config/software",
920 fs->windows_systemroot);
922 char *software_path = resolve_windows_path_silently (g, software);
924 /* If the software hive doesn't exist, just accept that we cannot
925 * find product_name etc.
931 hive_value_h *values = NULL;
933 if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
936 h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
938 perrorf (g, "hivex_open");
942 hive_node_h node = hivex_root (h);
943 const char *hivepath[] =
944 { "Microsoft", "Windows NT", "CurrentVersion" };
947 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
949 node = hivex_node_get_child (h, node, hivepath[i]);
953 perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion");
957 values = hivex_node_values (h, node);
959 for (i = 0; values[i] != 0; ++i) {
960 char *key = hivex_value_key (h, values[i]);
962 perrorf (g, "hivex_value_key");
966 if (STRCASEEQ (key, "ProductName")) {
967 fs->product_name = hivex_value_string (h, values[i]);
968 if (!fs->product_name) {
969 perrorf (g, "hivex_value_string");
974 else if (STRCASEEQ (key, "CurrentVersion")) {
975 char *version = hivex_value_string (h, values[i]);
977 perrorf (g, "hivex_value_string");
982 if (match2 (g, version, re_windows_version, &major, &minor)) {
983 fs->major_version = parse_unsigned_int (g, major);
985 if (fs->major_version == -1) {
991 fs->minor_version = parse_unsigned_int (g, minor);
993 if (fs->minor_version == -1) {
1009 if (h) hivex_close (h);
1011 free (software_path);
1013 /* Free up the temporary file. */
1014 unlink (software_local);
1015 #undef software_local_len
1021 resolve_windows_path_silently (guestfs_h *g, const char *path)
1023 guestfs_error_handler_cb old_error_cb = g->error_cb;
1025 char *ret = guestfs_case_sensitive_path (g, path);
1026 g->error_cb = old_error_cb;
1031 extend_fses (guestfs_h *g)
1033 size_t n = g->nr_fses + 1;
1034 struct inspect_fs *p;
1036 p = realloc (g->fses, n * sizeof (struct inspect_fs));
1038 perrorf (g, "realloc");
1045 memset (&g->fses[n-1], 0, sizeof (struct inspect_fs));
1050 /* Parse small, unsigned ints, as used in version numbers. */
1052 parse_unsigned_int (guestfs_h *g, const char *str)
1055 int r = xstrtol (str, NULL, 10, &ret, "");
1056 if (r != LONGINT_OK) {
1057 error (g, _("could not parse integer in version number: %s"), str);
1063 /* At the moment, package format and package management is just a
1064 * simple function of the distro and major_version fields, so these
1065 * can never return an error. We might be cleverer in future.
1068 check_package_format (guestfs_h *g, struct inspect_fs *fs)
1070 switch (fs->distro) {
1071 case OS_DISTRO_FEDORA:
1072 case OS_DISTRO_MEEGO:
1073 case OS_DISTRO_REDHAT_BASED:
1074 case OS_DISTRO_RHEL:
1075 case OS_DISTRO_MANDRIVA:
1076 fs->package_format = OS_PACKAGE_FORMAT_RPM;
1079 case OS_DISTRO_DEBIAN:
1080 case OS_DISTRO_UBUNTU:
1081 case OS_DISTRO_LINUX_MINT:
1082 fs->package_format = OS_PACKAGE_FORMAT_DEB;
1085 case OS_DISTRO_ARCHLINUX:
1086 fs->package_format = OS_PACKAGE_FORMAT_PACMAN;
1088 case OS_DISTRO_GENTOO:
1089 fs->package_format = OS_PACKAGE_FORMAT_EBUILD;
1091 case OS_DISTRO_PARDUS:
1092 fs->package_format = OS_PACKAGE_FORMAT_PISI;
1095 case OS_DISTRO_WINDOWS:
1096 case OS_DISTRO_UNKNOWN:
1098 fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN;
1104 check_package_management (guestfs_h *g, struct inspect_fs *fs)
1106 switch (fs->distro) {
1107 case OS_DISTRO_FEDORA:
1108 case OS_DISTRO_MEEGO:
1109 fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
1112 case OS_DISTRO_REDHAT_BASED:
1113 case OS_DISTRO_RHEL:
1114 if (fs->major_version >= 5)
1115 fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
1117 fs->package_management = OS_PACKAGE_MANAGEMENT_UP2DATE;
1120 case OS_DISTRO_DEBIAN:
1121 case OS_DISTRO_UBUNTU:
1122 case OS_DISTRO_LINUX_MINT:
1123 fs->package_management = OS_PACKAGE_MANAGEMENT_APT;
1126 case OS_DISTRO_ARCHLINUX:
1127 fs->package_management = OS_PACKAGE_MANAGEMENT_PACMAN;
1129 case OS_DISTRO_GENTOO:
1130 fs->package_management = OS_PACKAGE_MANAGEMENT_PORTAGE;
1132 case OS_DISTRO_PARDUS:
1133 fs->package_management = OS_PACKAGE_MANAGEMENT_PISI;
1135 case OS_DISTRO_MANDRIVA:
1136 fs->package_management = OS_PACKAGE_MANAGEMENT_URPMI;
1139 case OS_DISTRO_WINDOWS:
1140 case OS_DISTRO_UNKNOWN:
1142 fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN;
1147 static struct inspect_fs *
1148 search_for_root (guestfs_h *g, const char *root)
1150 if (g->nr_fses == 0) {
1151 error (g, _("no inspection data: call guestfs_inspect_os first"));
1156 struct inspect_fs *fs;
1157 for (i = 0; i < g->nr_fses; ++i) {
1159 if (fs->is_root && STREQ (root, fs->device))
1163 error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"),
1169 guestfs__inspect_get_roots (guestfs_h *g)
1171 /* NB. Doesn't matter if g->nr_fses == 0. We just return an empty
1172 * list in this case.
1177 for (i = 0; i < g->nr_fses; ++i)
1178 if (g->fses[i].is_root)
1181 char **ret = calloc (count+1, sizeof (char *));
1183 perrorf (g, "calloc");
1188 for (i = 0; i < g->nr_fses; ++i) {
1189 if (g->fses[i].is_root) {
1190 ret[count] = safe_strdup (g, g->fses[i].device);
1200 guestfs__inspect_get_type (guestfs_h *g, const char *root)
1202 struct inspect_fs *fs = search_for_root (g, root);
1208 case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
1209 case OS_TYPE_WINDOWS: ret = safe_strdup (g, "windows"); break;
1210 case OS_TYPE_FREEBSD: ret = safe_strdup (g, "freebsd"); break;
1211 case OS_TYPE_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1218 guestfs__inspect_get_arch (guestfs_h *g, const char *root)
1220 struct inspect_fs *fs = search_for_root (g, root);
1224 return safe_strdup (g, fs->arch ? : "unknown");
1228 guestfs__inspect_get_distro (guestfs_h *g, const char *root)
1230 struct inspect_fs *fs = search_for_root (g, root);
1235 switch (fs->distro) {
1236 case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break;
1237 case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
1238 case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
1239 case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
1240 case OS_DISTRO_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
1241 case OS_DISTRO_MANDRIVA: ret = safe_strdup (g, "mandriva"); break;
1242 case OS_DISTRO_MEEGO: ret = safe_strdup (g, "meego"); break;
1243 case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
1244 case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
1245 case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); break;
1246 case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break;
1247 case OS_DISTRO_UBUNTU: ret = safe_strdup (g, "ubuntu"); break;
1248 case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1255 guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
1257 struct inspect_fs *fs = search_for_root (g, root);
1261 return fs->major_version;
1265 guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
1267 struct inspect_fs *fs = search_for_root (g, root);
1271 return fs->minor_version;
1275 guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
1277 struct inspect_fs *fs = search_for_root (g, root);
1281 return safe_strdup (g, fs->product_name ? : "unknown");
1285 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
1287 struct inspect_fs *fs = search_for_root (g, root);
1291 if (!fs->windows_systemroot) {
1292 error (g, _("not a Windows guest, or systemroot could not be determined"));
1296 return safe_strdup (g, fs->windows_systemroot);
1300 guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
1302 struct inspect_fs *fs = search_for_root (g, root);
1308 /* If no fstab information (Windows) return just the root. */
1309 if (fs->nr_fstab == 0) {
1310 ret = calloc (3, sizeof (char *));
1311 ret[0] = safe_strdup (g, "/");
1312 ret[1] = safe_strdup (g, root);
1317 #define CRITERION fs->fstab[i].mountpoint[0] == '/'
1318 size_t i, count = 0;
1319 for (i = 0; i < fs->nr_fstab; ++i)
1323 /* Hashtables have 2N+1 entries. */
1324 ret = calloc (2*count+1, sizeof (char *));
1326 perrorf (g, "calloc");
1331 for (i = 0; i < fs->nr_fstab; ++i)
1333 ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint);
1334 ret[2*count+1] = safe_strdup (g, fs->fstab[i].device);
1343 guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
1345 struct inspect_fs *fs = search_for_root (g, root);
1351 /* If no fstab information (Windows) return just the root. */
1352 if (fs->nr_fstab == 0) {
1353 ret = calloc (2, sizeof (char *));
1354 ret[0] = safe_strdup (g, root);
1359 ret = calloc (fs->nr_fstab + 1, sizeof (char *));
1361 perrorf (g, "calloc");
1366 for (i = 0; i < fs->nr_fstab; ++i)
1367 ret[i] = safe_strdup (g, fs->fstab[i].device);
1373 guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
1375 struct inspect_fs *fs = search_for_root (g, root);
1380 switch (fs->package_format) {
1381 case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break;
1382 case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break;
1383 case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break;
1384 case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break;
1385 case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break;
1386 case OS_PACKAGE_FORMAT_UNKNOWN:
1388 ret = safe_strdup (g, "unknown");
1396 guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
1398 struct inspect_fs *fs = search_for_root (g, root);
1403 switch (fs->package_management) {
1404 case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break;
1405 case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break;
1406 case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break;
1407 case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
1408 case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
1409 case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
1410 case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break;
1411 case OS_PACKAGE_MANAGEMENT_UNKNOWN:
1413 ret = safe_strdup (g, "unknown");
1420 static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
1421 static struct guestfs_application_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs);
1422 static struct guestfs_application_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs);
1423 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);
1424 static void sort_applications (struct guestfs_application_list *);
1426 /* Unlike the simple inspect-get-* calls, this one assumes that the
1427 * disks are mounted up, and reads files from the mounted disks.
1429 struct guestfs_application_list *
1430 guestfs__inspect_list_applications (guestfs_h *g, const char *root)
1432 struct inspect_fs *fs = search_for_root (g, root);
1436 struct guestfs_application_list *ret = NULL;
1440 switch (fs->package_format) {
1441 case OS_PACKAGE_FORMAT_RPM:
1442 ret = list_applications_rpm (g, fs);
1447 case OS_PACKAGE_FORMAT_DEB:
1448 ret = list_applications_deb (g, fs);
1453 case OS_PACKAGE_FORMAT_PACMAN:
1454 case OS_PACKAGE_FORMAT_EBUILD:
1455 case OS_PACKAGE_FORMAT_PISI:
1456 case OS_PACKAGE_FORMAT_UNKNOWN:
1458 /* nothing - keep GCC happy */;
1462 case OS_TYPE_WINDOWS:
1463 ret = list_applications_windows (g, fs);
1468 case OS_TYPE_FREEBSD:
1469 case OS_TYPE_UNKNOWN:
1471 /* nothing - keep GCC happy */;
1475 /* Don't know how to do inspection. Not an error, return an
1478 ret = safe_malloc (g, sizeof *ret);
1483 sort_applications (ret);
1488 static struct guestfs_application_list *
1489 list_applications_rpm (guestfs_h *g, struct inspect_fs *fs)
1491 TMP_TEMPLATE_ON_STACK (tmpfile);
1493 if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, 10000000) == -1)
1496 struct guestfs_application_list *apps = NULL, *ret = NULL;
1497 #define cmd_len (strlen (tmpfile) + 64)
1503 snprintf (cmd, cmd_len, "db_dump -p '%s'", tmpfile);
1506 fprintf (stderr, "list_applications_rpm: %s\n", cmd);
1508 pp = popen (cmd, "r");
1510 perrorf (g, "popen: %s", cmd);
1514 /* Ignore everything to end-of-header marker. */
1516 if (fgets (line, sizeof line, pp) == NULL) {
1517 error (g, _("unexpected end of output from db_dump command"));
1521 len = strlen (line);
1522 if (len > 0 && line[len-1] == '\n') {
1527 if (STREQ (line, "HEADER=END"))
1531 /* Allocate 'apps' list. */
1532 apps = safe_malloc (g, sizeof *apps);
1536 /* Read alternate lines until end of data marker. */
1538 if (fgets (line, sizeof line, pp) == NULL) {
1539 error (g, _("unexpected end of output from db_dump command"));
1543 len = strlen (line);
1544 if (len > 0 && line[len-1] == '\n') {
1549 if (STREQ (line, "DATA=END"))
1553 if (len > 0 && line[0] == ' ')
1555 /* Ignore any application name that contains non-printable chars.
1556 * In the db_dump output these would be escaped with backslash, so
1557 * we can just ignore any such line.
1559 if (strchr (p, '\\') == NULL)
1560 add_application (g, apps, p, "", 0, "", "", "", "", "", "");
1562 /* Discard next line. */
1563 if (fgets (line, sizeof line, pp) == NULL) {
1564 error (g, _("unexpected end of output from db_dump command"));
1569 /* Catch errors from the db_dump command. */
1570 if (pclose (pp) == -1) {
1571 perrorf (g, "pclose: %s", cmd);
1579 if (ret == NULL && apps != NULL)
1580 guestfs_free_application_list (apps);
1589 static struct guestfs_application_list *
1590 list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
1592 TMP_TEMPLATE_ON_STACK (tmpfile);
1594 if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile, 10000000) == -1)
1597 struct guestfs_application_list *apps = NULL, *ret = NULL;
1601 char *name = NULL, *version = NULL, *release = NULL;
1602 int installed_flag = 0;
1604 fp = fopen (tmpfile, "r");
1606 perrorf (g, "fopen: %s", tmpfile);
1610 /* Allocate 'apps' list. */
1611 apps = safe_malloc (g, sizeof *apps);
1615 /* Read the temporary file. Each package entry is separated by
1617 * XXX Strictly speaking this is in mailbox header format, so it
1618 * would be possible for fields to spread across multiple lines,
1619 * although for the short fields that we are concerned about this is
1620 * unlikely and not seen in practice.
1622 while (fgets (line, sizeof line, fp) != NULL) {
1623 len = strlen (line);
1624 if (len > 0 && line[len-1] == '\n') {
1629 if (STRPREFIX (line, "Package: ")) {
1631 name = safe_strdup (g, &line[9]);
1633 else if (STRPREFIX (line, "Status: ")) {
1634 installed_flag = strstr (&line[8], "installed") != NULL;
1636 else if (STRPREFIX (line, "Version: ")) {
1639 char *p = strchr (&line[9], '-');
1642 version = safe_strdup (g, &line[9]);
1643 release = safe_strdup (g, p+1);
1645 version = safe_strdup (g, &line[9]);
1649 else if (STREQ (line, "")) {
1650 if (installed_flag && name && version)
1651 add_application (g, apps, name, "", 0, version, release ? : "",
1656 name = version = release = NULL;
1661 if (fclose (fp) == -1) {
1662 perrorf (g, "fclose: %s", tmpfile);
1670 if (ret == NULL && apps != NULL)
1671 guestfs_free_application_list (apps);
1681 /* XXX We already download the SOFTWARE hive when doing general
1682 * inspection. We could avoid this second download of the same file
1683 * by caching these entries in the handle.
1685 static struct guestfs_application_list *
1686 list_applications_windows (guestfs_h *g, struct inspect_fs *fs)
1688 TMP_TEMPLATE_ON_STACK (software_local);
1690 size_t len = strlen (fs->windows_systemroot) + 64;
1692 snprintf (software, len, "%s/system32/config/software",
1693 fs->windows_systemroot);
1695 char *software_path = resolve_windows_path_silently (g, software);
1697 /* If the software hive doesn't exist, just accept that we cannot
1698 * find product_name etc.
1702 struct guestfs_application_list *apps = NULL, *ret = NULL;
1704 hive_node_h *children = NULL;
1706 if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
1709 h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
1711 perrorf (g, "hivex_open");
1715 hive_node_h node = hivex_root (h);
1716 const char *hivepath[] =
1717 { "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
1720 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
1722 node = hivex_node_get_child (h, node, hivepath[i]);
1726 perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");
1730 children = hivex_node_children (h, node);
1731 if (children == NULL) {
1732 perrorf (g, "hivex_node_children");
1736 /* Allocate 'apps' list. */
1737 apps = safe_malloc (g, sizeof *apps);
1741 /* Consider any child node that has a DisplayName key.
1743 * http://nsis.sourceforge.net/Add_uninstall_information_to_Add/Remove_Programs#Optional_values
1745 for (i = 0; children[i] != 0; ++i) {
1748 char *display_name = NULL;
1749 char *version = NULL;
1750 char *install_path = NULL;
1751 char *publisher = NULL;
1753 char *comments = NULL;
1755 /* Use the node name as a proxy for the package name in Linux. The
1756 * display name is not language-independent, so it cannot be used.
1758 name = hivex_node_name (h, children[i]);
1760 perrorf (g, "hivex_node_get_name");
1764 value = hivex_node_get_value (h, children[i], "DisplayName");
1766 display_name = hivex_value_string (h, value);
1768 value = hivex_node_get_value (h, children[i], "DisplayVersion");
1770 version = hivex_value_string (h, value);
1771 value = hivex_node_get_value (h, children[i], "InstallLocation");
1773 install_path = hivex_value_string (h, value);
1774 value = hivex_node_get_value (h, children[i], "Publisher");
1776 publisher = hivex_value_string (h, value);
1777 value = hivex_node_get_value (h, children[i], "URLInfoAbout");
1779 url = hivex_value_string (h, value);
1780 value = hivex_node_get_value (h, children[i], "Comments");
1782 comments = hivex_value_string (h, value);
1784 add_application (g, apps, name, display_name, 0,
1787 install_path ? : "",
1795 free (display_name);
1797 free (install_path);
1806 if (ret == NULL && apps != NULL)
1807 guestfs_free_application_list (apps);
1808 if (h) hivex_close (h);
1810 free (software_path);
1812 /* Free up the temporary file. */
1813 unlink (software_local);
1814 #undef software_local_len
1820 add_application (guestfs_h *g, struct guestfs_application_list *apps,
1821 const char *name, const char *display_name, int32_t epoch,
1822 const char *version, const char *release,
1823 const char *install_path,
1824 const char *publisher, const char *url,
1825 const char *description)
1828 apps->val = safe_realloc (g, apps->val,
1829 apps->len * sizeof (struct guestfs_application));
1830 apps->val[apps->len-1].app_name = safe_strdup (g, name);
1831 apps->val[apps->len-1].app_display_name = safe_strdup (g, display_name);
1832 apps->val[apps->len-1].app_epoch = epoch;
1833 apps->val[apps->len-1].app_version = safe_strdup (g, version);
1834 apps->val[apps->len-1].app_release = safe_strdup (g, release);
1835 apps->val[apps->len-1].app_install_path = safe_strdup (g, install_path);
1836 /* XXX Translated path is not implemented yet. */
1837 apps->val[apps->len-1].app_trans_path = safe_strdup (g, "");
1838 apps->val[apps->len-1].app_publisher = safe_strdup (g, publisher);
1839 apps->val[apps->len-1].app_url = safe_strdup (g, url);
1840 /* XXX The next two are not yet implemented for any package
1841 * format, but we could easily support them for rpm and deb.
1843 apps->val[apps->len-1].app_source_package = safe_strdup (g, "");
1844 apps->val[apps->len-1].app_summary = safe_strdup (g, "");
1845 apps->val[apps->len-1].app_description = safe_strdup (g, description);
1848 /* Sort applications by name before returning the list. */
1850 compare_applications (const void *vp1, const void *vp2)
1852 const struct guestfs_application *v1 = vp1;
1853 const struct guestfs_application *v2 = vp2;
1855 return strcmp (v1->app_name, v2->app_name);
1859 sort_applications (struct guestfs_application_list *apps)
1861 if (apps && apps->val)
1862 qsort (apps->val, apps->len, sizeof (struct guestfs_application),
1863 compare_applications);
1866 /* Download to a guest file to a local temporary file. Refuse to
1867 * download the guest file if it is larger than max_size. The caller
1868 * is responsible for deleting the temporary file after use.
1871 download_to_tmp (guestfs_h *g, const char *filename,
1872 char *localtmp, int64_t max_size)
1878 size = guestfs_filesize (g, filename);
1880 /* guestfs_filesize failed and has already set error in handle */
1882 if (size > max_size) {
1883 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
1888 fd = mkstemp (localtmp);
1890 perrorf (g, "mkstemp");
1894 snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
1896 if (guestfs_download (g, filename, buf) == -1) {
1902 if (close (fd) == -1) {
1903 perrorf (g, "close: %s", localtmp);
1911 /* Call 'f' with Augeas opened and having parsed 'filename' (this file
1912 * must exist). As a security measure, this bails if the file is too
1913 * large for a reasonable configuration file. After the call to 'f'
1917 inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename,
1918 int (*f) (guestfs_h *, struct inspect_fs *))
1920 /* Security: Refuse to do this if filename is too large. */
1921 int64_t size = guestfs_filesize (g, filename);
1923 /* guestfs_filesize failed and has already set error in handle */
1925 if (size > 100000) {
1926 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
1931 /* If !feature_available (g, "augeas") then the next call will fail.
1932 * Arguably we might want to fall back to a non-Augeas method in
1935 if (guestfs_aug_init (g, "/", 16|32) == -1)
1940 /* Tell Augeas to only load one file (thanks Raphaël Pinson). */
1941 char buf[strlen (filename) + 64];
1942 snprintf (buf, strlen (filename) + 64, "/augeas/load//incl[. != \"%s\"]",
1944 if (guestfs_aug_rm (g, buf) == -1)
1947 if (guestfs_aug_load (g) == -1)
1953 guestfs_aug_close (g);
1958 /* Get the first line of a small file, without any trailing newline
1962 first_line_of_file (guestfs_h *g, const char *filename)
1968 /* Don't trust guestfs_head_n not to break with very large files.
1969 * Check the file size is something reasonable first.
1971 size = guestfs_filesize (g, filename);
1973 /* guestfs_filesize failed and has already set error in handle */
1975 if (size > 1000000) {
1976 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
1981 lines = guestfs_head_n (g, 1, filename);
1984 if (lines[0] == NULL) {
1985 error (g, _("%s: file is empty"), filename);
1986 guestfs___free_string_list (lines);
1989 /* lines[1] should be NULL because of '1' argument above ... */
1991 ret = lines[0]; /* caller frees */
1992 free (lines); /* free the array */
1997 #else /* no PCRE or hivex at compile time */
1999 /* XXX These functions should be in an optgroup. */
2001 #define NOT_IMPL(r) \
2002 error (g, _("inspection API not available since this version of libguestfs was compiled without PCRE or hivex libraries")); \
2006 guestfs__inspect_os (guestfs_h *g)
2012 guestfs__inspect_get_roots (guestfs_h *g)
2018 guestfs__inspect_get_type (guestfs_h *g, const char *root)
2024 guestfs__inspect_get_arch (guestfs_h *g, const char *root)
2030 guestfs__inspect_get_distro (guestfs_h *g, const char *root)
2036 guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
2042 guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
2048 guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
2054 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
2060 guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
2066 guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
2072 guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
2078 guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
2083 struct guestfs_application_list *
2084 guestfs__inspect_list_applications (guestfs_h *g, const char *root)
2089 #endif /* no PCRE or hivex at compile time */
2092 guestfs___free_inspect_info (guestfs_h *g)
2095 for (i = 0; i < g->nr_fses; ++i) {
2096 free (g->fses[i].device);
2097 free (g->fses[i].product_name);
2098 free (g->fses[i].arch);
2099 free (g->fses[i].windows_systemroot);
2101 for (j = 0; j < g->fses[i].nr_fstab; ++j) {
2102 free (g->fses[i].fstab[j].device);
2103 free (g->fses[i].fstab[j].mountpoint);
2105 free (g->fses[i].fstab);
2112 /* In the Perl code this is a public function. */
2114 guestfs___feature_available (guestfs_h *g, const char *feature)
2116 /* If there's an error we should ignore it, so to do that we have to
2117 * temporarily replace the error handler with a null one.
2119 guestfs_error_handler_cb old_error_cb = g->error_cb;
2122 const char *groups[] = { feature, NULL };
2123 int r = guestfs_available (g, (char * const *) groups);
2125 g->error_cb = old_error_cb;
2127 return r == 0 ? 1 : 0;
2132 /* Match a regular expression which contains no captures. Returns
2133 * true if it matches or false if it doesn't.
2136 guestfs___match (guestfs_h *g, const char *str, const pcre *re)
2138 size_t len = strlen (str);
2141 r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
2142 if (r == PCRE_ERROR_NOMATCH)
2145 /* Internal error -- should not happen. */
2146 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2147 __FILE__, __func__, r, str);
2154 /* Match a regular expression which contains exactly one capture. If
2155 * the string matches, return the capture, otherwise return NULL. The
2156 * caller must free the result.
2159 guestfs___match1 (guestfs_h *g, const char *str, const pcre *re)
2161 size_t len = strlen (str);
2164 r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
2165 if (r == PCRE_ERROR_NOMATCH)
2168 /* Internal error -- should not happen. */
2169 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2170 __FILE__, __func__, r, str);
2174 return safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2177 /* Match a regular expression which contains exactly two captures. */
2179 guestfs___match2 (guestfs_h *g, const char *str, const pcre *re,
2180 char **ret1, char **ret2)
2182 size_t len = strlen (str);
2185 r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
2186 if (r == PCRE_ERROR_NOMATCH)
2189 /* Internal error -- should not happen. */
2190 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2191 __FILE__, __func__, r, str);
2195 *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2196 *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
2201 /* Match a regular expression which contains exactly three captures. */
2203 guestfs___match3 (guestfs_h *g, const char *str, const pcre *re,
2204 char **ret1, char **ret2, char **ret3)
2206 size_t len = strlen (str);
2209 r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
2210 if (r == PCRE_ERROR_NOMATCH)
2213 /* Internal error -- should not happen. */
2214 fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2215 __FILE__, __func__, r, str);
2219 *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2220 *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
2221 *ret3 = safe_strndup (g, &str[vec[6]], vec[7]-vec[6]);
2226 #endif /* HAVE_PCRE */