2 * Copyright (C) 2010-2011 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 /* Some limits on what we will read, for safety. */
50 /* Small text configuration files.
52 * The upper limit is for general files that we grep or download. The
53 * largest such file is probably "txtsetup.sif" from Windows CDs
54 * (~500K). This number has to be larger than any legitimate file and
55 * smaller than the protocol message size.
57 * The lower limit is for files parsed by Augeas on the daemon side,
58 * where Augeas is running in reduced memory and can potentially
59 * create a lot of metadata so we really need to be careful about
62 #define MAX_SMALL_FILE_SIZE (2 * 1000 * 1000)
63 #define MAX_AUGEAS_FILE_SIZE (100 * 1000)
65 /* Maximum Windows Registry hive that we will download to /tmp. Some
66 * registries can be legitimately very large.
68 #define MAX_REGISTRY_SIZE (100 * 1000 * 1000)
70 /* Maximum RPM or dpkg database we will download to /tmp. */
71 #define MAX_PKG_DB_SIZE (10 * 1000 * 1000)
73 /* Compile all the regular expressions once when the shared library is
74 * loaded. PCRE is thread safe so we're supposedly OK here if
75 * multiple threads call into the libguestfs API functions below
78 static pcre *re_fedora;
79 static pcre *re_rhel_old;
81 static pcre *re_rhel_no_minor;
82 static pcre *re_major_minor;
83 static pcre *re_aug_seq;
85 static pcre *re_first_partition;
86 static pcre *re_freebsd;
87 static pcre *re_windows_version;
89 static void compile_regexps (void) __attribute__((constructor));
90 static void free_regexps (void) __attribute__((destructor));
93 compile_regexps (void)
98 #define COMPILE(re,pattern,options) \
100 re = pcre_compile ((pattern), (options), &err, &offset, NULL); \
102 ignore_value (write (2, err, strlen (err))); \
107 COMPILE (re_fedora, "Fedora release (\\d+)", 0);
108 COMPILE (re_rhel_old,
109 "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+).*Update (\\d+)", 0);
111 "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0);
112 COMPILE (re_rhel_no_minor,
113 "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+)", 0);
114 COMPILE (re_major_minor, "(\\d+)\\.(\\d+)", 0);
115 COMPILE (re_aug_seq, "/\\d+$", 0);
116 COMPILE (re_xdev, "^/dev/(?:h|s|v|xv)d([a-z]\\d*)$", 0);
117 COMPILE (re_first_partition, "^/dev/(?:h|s|v)d.1$", 0);
118 COMPILE (re_freebsd, "^/dev/ad(\\d+)s(\\d+)([a-z])$", 0);
119 COMPILE (re_windows_version, "^(\\d+)\\.(\\d+)", 0);
125 pcre_free (re_fedora);
126 pcre_free (re_rhel_old);
128 pcre_free (re_rhel_no_minor);
129 pcre_free (re_major_minor);
130 pcre_free (re_aug_seq);
132 pcre_free (re_first_partition);
133 pcre_free (re_freebsd);
134 pcre_free (re_windows_version);
137 /* The main inspection code. */
138 static int check_for_filesystem_on (guestfs_h *g, const char *device, int is_block, int is_partnum);
141 guestfs__inspect_os (guestfs_h *g)
143 /* Remove any information previously stored in the handle. */
144 guestfs___free_inspect_info (g);
146 if (guestfs_umount_all (g) == -1)
149 /* Iterate over all possible devices. Try to mount each
150 * (read-only). Examine ones which contain filesystems and add that
151 * information to the handle.
153 /* Look to see if any devices directly contain filesystems (RHBZ#590167). */
155 devices = guestfs_list_devices (g);
160 for (i = 0; devices[i] != NULL; ++i) {
161 if (check_for_filesystem_on (g, devices[i], 1, 0) == -1) {
162 guestfs___free_string_list (devices);
163 guestfs___free_inspect_info (g);
167 guestfs___free_string_list (devices);
169 /* Look at all partitions. */
171 partitions = guestfs_list_partitions (g);
172 if (partitions == NULL) {
173 guestfs___free_inspect_info (g);
177 for (i = 0; partitions[i] != NULL; ++i) {
178 if (check_for_filesystem_on (g, partitions[i], 0, i+1) == -1) {
179 guestfs___free_string_list (partitions);
180 guestfs___free_inspect_info (g);
184 guestfs___free_string_list (partitions);
186 /* Look at all LVs. */
187 if (guestfs___feature_available (g, "lvm2")) {
189 lvs = guestfs_lvs (g);
191 guestfs___free_inspect_info (g);
195 for (i = 0; lvs[i] != NULL; ++i) {
196 if (check_for_filesystem_on (g, lvs[i], 0, 0) == -1) {
197 guestfs___free_string_list (lvs);
198 guestfs___free_inspect_info (g);
202 guestfs___free_string_list (lvs);
205 /* At this point we have, in the handle, a list of all filesystems
206 * found and data about each one. Now we assemble the list of
207 * filesystems which are root devices and return that to the user.
208 * Fall through to guestfs__inspect_get_roots to do that.
210 char **ret = guestfs__inspect_get_roots (g);
212 guestfs___free_inspect_info (g);
216 /* Find out if 'device' contains a filesystem. If it does, add
217 * another entry in g->fses.
219 static int check_filesystem (guestfs_h *g, const char *device, int is_block, int is_partnum);
220 static int check_linux_root (guestfs_h *g, struct inspect_fs *fs);
221 static int check_freebsd_root (guestfs_h *g, struct inspect_fs *fs);
222 static int check_installer_root (guestfs_h *g, struct inspect_fs *fs);
223 static void check_architecture (guestfs_h *g, struct inspect_fs *fs);
224 static int check_hostname_unix (guestfs_h *g, struct inspect_fs *fs);
225 static int check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs);
226 static int check_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs);
227 static int check_fstab (guestfs_h *g, struct inspect_fs *fs);
228 static int check_windows_root (guestfs_h *g, struct inspect_fs *fs);
229 static int check_windows_arch (guestfs_h *g, struct inspect_fs *fs);
230 static int check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs);
231 static int check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs);
232 static char *resolve_windows_path_silently (guestfs_h *g, const char *);
233 static int is_file_nocase (guestfs_h *g, const char *);
234 static int is_dir_nocase (guestfs_h *g, const char *);
235 static int extend_fses (guestfs_h *g);
236 static int parse_unsigned_int (guestfs_h *g, const char *str);
237 static int parse_unsigned_int_ignore_trailing (guestfs_h *g, const char *str);
238 static int add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
239 const char *spec, const char *mp);
240 static char *resolve_fstab_device (guestfs_h *g, const char *spec);
241 static void check_package_format (guestfs_h *g, struct inspect_fs *fs);
242 static void check_package_management (guestfs_h *g, struct inspect_fs *fs);
243 static int download_to_tmp (guestfs_h *g, const char *filename, char *localtmp, int64_t max_size);
244 static int inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, int (*f) (guestfs_h *, struct inspect_fs *));
245 static char *first_line_of_file (guestfs_h *g, const char *filename);
246 static int first_egrep_of_file (guestfs_h *g, const char *filename, const char *eregex, int iflag, char **ret);
249 check_for_filesystem_on (guestfs_h *g, const char *device,
250 int is_block, int is_partnum)
252 /* Get vfs-type in order to check if it's a Linux(?) swap device.
253 * If there's an error we should ignore it, so to do that we have to
254 * temporarily replace the error handler with a null one.
256 guestfs_error_handler_cb old_error_cb = g->error_cb;
258 char *vfs_type = guestfs_vfs_type (g, device);
259 g->error_cb = old_error_cb;
261 int is_swap = vfs_type && STREQ (vfs_type, "swap");
263 debug (g, "check_for_filesystem_on: %s %d %d (%s)",
264 device, is_block, is_partnum,
265 vfs_type ? vfs_type : "failed to get vfs type");
269 if (extend_fses (g) == -1)
271 g->fses[g->nr_fses-1].is_swap = 1;
275 /* Try mounting the device. As above, ignore errors. */
277 int r = guestfs_mount_ro (g, device, "/");
278 if (r == -1 && vfs_type && STREQ (vfs_type, "ufs")) /* Hack for the *BSDs. */
279 r = guestfs_mount_vfs (g, "ro,ufstype=ufs2", "ufs", device, "/");
281 g->error_cb = old_error_cb;
285 /* Do the rest of the checks. */
286 r = check_filesystem (g, device, is_block, is_partnum);
288 /* Unmount the filesystem. */
289 if (guestfs_umount_all (g) == -1)
295 /* is_block and is_partnum are just hints: is_block is true if the
296 * filesystem is a whole block device (eg. /dev/sda). is_partnum
297 * is > 0 if the filesystem is a direct partition, and in this case
298 * it is the partition number counting from 1
299 * (eg. /dev/sda1 => is_partnum == 1).
302 check_filesystem (guestfs_h *g, const char *device,
303 int is_block, int is_partnum)
305 if (extend_fses (g) == -1)
308 struct inspect_fs *fs = &g->fses[g->nr_fses-1];
310 fs->device = safe_strdup (g, device);
311 fs->is_mountable = 1;
313 /* Optimize some of the tests by avoiding multiple tests of the same thing. */
314 int is_dir_etc = guestfs_is_dir (g, "/etc") > 0;
315 int is_dir_bin = guestfs_is_dir (g, "/bin") > 0;
316 int is_dir_share = guestfs_is_dir (g, "/share") > 0;
319 if (guestfs_is_file (g, "/grub/menu.lst") > 0 ||
320 guestfs_is_file (g, "/grub/grub.conf") > 0)
321 fs->content = FS_CONTENT_LINUX_BOOT;
323 else if (is_dir_etc &&
325 guestfs_is_file (g, "/etc/freebsd-update.conf") > 0 &&
326 guestfs_is_file (g, "/etc/fstab") > 0) {
327 /* Ignore /dev/sda1 which is a shadow of the real root filesystem
328 * that is probably /dev/sda5 (see:
329 * http://www.freebsd.org/doc/handbook/disk-organization.html)
331 if (match (g, device, re_first_partition))
335 fs->content = FS_CONTENT_FREEBSD_ROOT;
336 fs->format = OS_FORMAT_INSTALLED;
337 if (check_freebsd_root (g, fs) == -1)
341 else if (is_dir_etc &&
343 guestfs_is_file (g, "/etc/fstab") > 0) {
345 fs->content = FS_CONTENT_LINUX_ROOT;
346 fs->format = OS_FORMAT_INSTALLED;
347 if (check_linux_root (g, fs) == -1)
350 /* Linux /usr/local? */
351 else if (is_dir_etc &&
354 guestfs_exists (g, "/local") == 0 &&
355 guestfs_is_file (g, "/etc/fstab") == 0)
356 fs->content = FS_CONTENT_LINUX_USR_LOCAL;
358 else if (is_dir_etc &&
361 guestfs_exists (g, "/local") > 0 &&
362 guestfs_is_file (g, "/etc/fstab") == 0)
363 fs->content = FS_CONTENT_LINUX_USR;
365 else if (guestfs_is_dir (g, "/log") > 0 &&
366 guestfs_is_dir (g, "/run") > 0 &&
367 guestfs_is_dir (g, "/spool") > 0)
368 fs->content = FS_CONTENT_LINUX_VAR;
370 else if (is_file_nocase (g, "/AUTOEXEC.BAT") > 0 ||
371 is_dir_nocase (g, "/Program Files") > 0 ||
372 is_dir_nocase (g, "/WINDOWS") > 0 ||
373 is_dir_nocase (g, "/WIN32") > 0 ||
374 is_dir_nocase (g, "/WINNT") > 0 ||
375 is_file_nocase (g, "/boot.ini") > 0 ||
376 is_file_nocase (g, "/ntldr") > 0) {
378 fs->content = FS_CONTENT_WINDOWS_ROOT;
379 fs->format = OS_FORMAT_INSTALLED;
380 if (check_windows_root (g, fs) == -1)
383 /* Install CD/disk? Skip these checks if it's not a whole device
384 * (eg. CD) or the first partition (eg. bootable USB key).
386 else if ((is_block || is_partnum == 1) &&
387 (guestfs_is_file (g, "/isolinux/isolinux.cfg") > 0 ||
388 guestfs_is_dir (g, "/EFI/BOOT") > 0 ||
389 guestfs_is_file (g, "/images/install.img") > 0 ||
390 guestfs_is_dir (g, "/.disk") > 0 ||
391 guestfs_is_file (g, "/.discinfo") > 0 ||
392 guestfs_is_file (g, "/i386/txtsetup.sif") > 0 ||
393 guestfs_is_file (g, "/amd64/txtsetup.sif")) > 0) {
395 fs->content = FS_CONTENT_INSTALLER;
396 fs->format = OS_FORMAT_INSTALLER;
397 if (check_installer_root (g, fs) == -1)
404 /* Set fs->product_name to the first line of the release file. */
406 parse_release_file (guestfs_h *g, struct inspect_fs *fs,
407 const char *release_filename)
409 fs->product_name = first_line_of_file (g, release_filename);
410 if (fs->product_name == NULL)
415 /* Parse generic MAJOR.MINOR from the fs->product_name string. */
417 parse_major_minor (guestfs_h *g, struct inspect_fs *fs)
421 if (match2 (g, fs->product_name, re_major_minor, &major, &minor)) {
422 fs->major_version = parse_unsigned_int (g, major);
424 if (fs->major_version == -1) {
428 fs->minor_version = parse_unsigned_int (g, minor);
430 if (fs->minor_version == -1)
436 /* Ubuntu has /etc/lsb-release containing:
437 * DISTRIB_ID=Ubuntu # Distro
438 * DISTRIB_RELEASE=10.04 # Version
439 * DISTRIB_CODENAME=lucid
440 * DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS" # Product name
442 * [Ubuntu-derived ...] Linux Mint was found to have this:
443 * DISTRIB_ID=LinuxMint
445 * DISTRIB_CODENAME=julia
446 * DISTRIB_DESCRIPTION="Linux Mint 10 Julia"
447 * Linux Mint also has /etc/linuxmint/info with more information,
448 * but we can use the LSB file.
451 * LSB_VERSION=lsb-4.0-amd64:lsb-4.0-noarch
452 * DISTRIB_ID=MandrivaLinux
453 * DISTRIB_RELEASE=2010.1
454 * DISTRIB_CODENAME=Henry_Farman
455 * DISTRIB_DESCRIPTION="Mandriva Linux 2010.1"
456 * Mandriva also has a normal release file called /etc/mandriva-release.
459 parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
461 const char *filename = "/etc/lsb-release";
467 /* Don't trust guestfs_head_n not to break with very large files.
468 * Check the file size is something reasonable first.
470 size = guestfs_filesize (g, filename);
472 /* guestfs_filesize failed and has already set error in handle */
474 if (size > MAX_SMALL_FILE_SIZE) {
475 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
480 lines = guestfs_head_n (g, 10, filename);
484 for (i = 0; lines[i] != NULL; ++i) {
485 if (fs->distro == 0 &&
486 STREQ (lines[i], "DISTRIB_ID=Ubuntu")) {
487 fs->distro = OS_DISTRO_UBUNTU;
490 else if (fs->distro == 0 &&
491 STREQ (lines[i], "DISTRIB_ID=LinuxMint")) {
492 fs->distro = OS_DISTRO_LINUX_MINT;
495 else if (fs->distro == 0 &&
496 STREQ (lines[i], "DISTRIB_ID=MandrivaLinux")) {
497 fs->distro = OS_DISTRO_MANDRIVA;
500 else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
502 if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) {
503 fs->major_version = parse_unsigned_int (g, major);
505 if (fs->major_version == -1) {
507 guestfs___free_string_list (lines);
510 fs->minor_version = parse_unsigned_int (g, minor);
512 if (fs->minor_version == -1) {
513 guestfs___free_string_list (lines);
518 else if (fs->product_name == NULL &&
519 (STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=\"") ||
520 STRPREFIX (lines[i], "DISTRIB_DESCRIPTION='"))) {
521 size_t len = strlen (lines[i]) - 21 - 1;
522 fs->product_name = safe_strndup (g, &lines[i][21], len);
525 else if (fs->product_name == NULL &&
526 STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=")) {
527 size_t len = strlen (lines[i]) - 20;
528 fs->product_name = safe_strndup (g, &lines[i][20], len);
533 guestfs___free_string_list (lines);
537 /* The currently mounted device is known to be a Linux root. Try to
538 * determine from this the distro, version, etc. Also parse
539 * /etc/fstab to determine the arrangement of mountpoints and
540 * associated devices.
543 check_linux_root (guestfs_h *g, struct inspect_fs *fs)
547 fs->type = OS_TYPE_LINUX;
549 if (guestfs_exists (g, "/etc/lsb-release") > 0) {
550 r = parse_lsb_release (g, fs);
551 if (r == -1) /* error */
553 if (r == 1) /* ok - detected the release from this file */
554 goto skip_release_checks;
557 if (guestfs_exists (g, "/etc/redhat-release") > 0) {
558 fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */
560 if (parse_release_file (g, fs, "/etc/redhat-release") == -1)
564 if ((major = match1 (g, fs->product_name, re_fedora)) != NULL) {
565 fs->distro = OS_DISTRO_FEDORA;
566 fs->major_version = parse_unsigned_int (g, major);
568 if (fs->major_version == -1)
571 else if (match2 (g, fs->product_name, re_rhel_old, &major, &minor) ||
572 match2 (g, fs->product_name, re_rhel, &major, &minor)) {
573 fs->distro = OS_DISTRO_RHEL;
574 fs->major_version = parse_unsigned_int (g, major);
576 if (fs->major_version == -1) {
580 fs->minor_version = parse_unsigned_int (g, minor);
582 if (fs->minor_version == -1)
585 else if ((major = match1 (g, fs->product_name, re_rhel_no_minor)) != NULL) {
586 fs->distro = OS_DISTRO_RHEL;
587 fs->major_version = parse_unsigned_int (g, major);
589 if (fs->major_version == -1)
591 fs->minor_version = 0;
594 else if (guestfs_exists (g, "/etc/debian_version") > 0) {
595 fs->distro = OS_DISTRO_DEBIAN;
597 if (parse_release_file (g, fs, "/etc/debian_version") == -1)
600 if (parse_major_minor (g, fs) == -1)
603 else if (guestfs_exists (g, "/etc/pardus-release") > 0) {
604 fs->distro = OS_DISTRO_PARDUS;
606 if (parse_release_file (g, fs, "/etc/pardus-release") == -1)
609 if (parse_major_minor (g, fs) == -1)
612 else if (guestfs_exists (g, "/etc/arch-release") > 0) {
613 fs->distro = OS_DISTRO_ARCHLINUX;
615 /* /etc/arch-release file is empty and I can't see a way to
616 * determine the actual release or product string.
619 else if (guestfs_exists (g, "/etc/gentoo-release") > 0) {
620 fs->distro = OS_DISTRO_GENTOO;
622 if (parse_release_file (g, fs, "/etc/gentoo-release") == -1)
625 if (parse_major_minor (g, fs) == -1)
628 else if (guestfs_exists (g, "/etc/meego-release") > 0) {
629 fs->distro = OS_DISTRO_MEEGO;
631 if (parse_release_file (g, fs, "/etc/meego-release") == -1)
634 if (parse_major_minor (g, fs) == -1)
638 skip_release_checks:;
640 /* If distro test above was successful, work out the package format. */
641 check_package_format (g, fs);
642 check_package_management (g, fs);
644 /* Determine the architecture. */
645 check_architecture (g, fs);
647 /* We already know /etc/fstab exists because it's part of the test
648 * for Linux root above. We must now parse this file to determine
649 * which filesystems are used by the operating system and how they
652 if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
655 /* Determine hostname. */
656 if (check_hostname_unix (g, fs) == -1)
662 /* The currently mounted device is known to be a FreeBSD root. */
664 check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
666 fs->type = OS_TYPE_FREEBSD;
668 /* FreeBSD has no authoritative version file. The version number is
669 * in /etc/motd, which the system administrator might edit, but
670 * we'll use that anyway.
673 if (guestfs_exists (g, "/etc/motd") > 0) {
674 if (parse_release_file (g, fs, "/etc/motd") == -1)
677 if (parse_major_minor (g, fs) == -1)
681 /* Determine the architecture. */
682 check_architecture (g, fs);
684 /* We already know /etc/fstab exists because it's part of the test above. */
685 if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
688 /* Determine hostname. */
689 if (check_hostname_unix (g, fs) == -1)
695 /* Debian/Ubuntu install disks are easy ...
697 * These files are added by the debian-cd program, and it is worth
698 * looking at the source code to determine exact values, in
699 * particular '/usr/share/debian-cd/tools/start_new_disc'
701 * XXX Architecture? We could parse it out of the product name
702 * string, but that seems quite hairy. We could look for the names
703 * of packages. Also note that some Debian install disks are
707 check_debian_installer_root (guestfs_h *g, struct inspect_fs *fs)
709 fs->product_name = first_line_of_file (g, "/.disk/info");
710 if (!fs->product_name)
713 fs->type = OS_TYPE_LINUX;
714 if (STRPREFIX (fs->product_name, "Ubuntu"))
715 fs->distro = OS_DISTRO_UBUNTU;
716 else if (STRPREFIX (fs->product_name, "Debian"))
717 fs->distro = OS_DISTRO_DEBIAN;
719 (void) parse_major_minor (g, fs);
721 if (guestfs_is_file (g, "/.disk/cd_type") > 0) {
722 char *cd_type = first_line_of_file (g, "/.disk/cd_type");
726 if (STRPREFIX (cd_type, "dvd/single") ||
727 STRPREFIX (cd_type, "full_cd/single")) {
728 fs->is_multipart_disk = 0;
729 fs->is_netinst_disk = 0;
731 else if (STRPREFIX (cd_type, "dvd") ||
732 STRPREFIX (cd_type, "full_cd")) {
733 fs->is_multipart_disk = 1;
734 fs->is_netinst_disk = 0;
736 else if (STRPREFIX (cd_type, "not_complete")) {
737 fs->is_multipart_disk = 0;
738 fs->is_netinst_disk = 1;
747 /* Take string which must look like "key = value" and find the value.
748 * There may or may not be spaces before and after the equals sign.
749 * This function is used by both check_fedora_installer_root and
750 * check_w2k3_installer_root.
753 find_value (const char *kv)
757 p = strchr (kv, '=');
763 } while (c_isspace (*p));
768 /* Fedora CDs and DVD (not netinst). The /.treeinfo file contains
769 * an initial section somewhat like this:
780 check_fedora_installer_root (guestfs_h *g, struct inspect_fs *fs)
785 int discnum = 0, totaldiscs = 0;
787 fs->type = OS_TYPE_LINUX;
789 r = first_egrep_of_file (g, "/.treeinfo",
790 "^family = Fedora$", 0, &str);
794 fs->distro = OS_DISTRO_FEDORA;
798 r = first_egrep_of_file (g, "/.treeinfo",
799 "^family = Red Hat Enterprise Linux$", 0, &str);
803 fs->distro = OS_DISTRO_RHEL;
807 /* XXX should do major.minor before this */
808 r = first_egrep_of_file (g, "/.treeinfo",
809 "^version = [[:digit:]]+", 0, &str);
813 v = find_value (str);
814 fs->major_version = parse_unsigned_int_ignore_trailing (g, v);
816 if (fs->major_version == -1)
820 r = first_egrep_of_file (g, "/.treeinfo",
821 "^arch = [-_[:alnum:]]+$", 0, &str);
825 v = find_value (str);
826 fs->arch = safe_strdup (g, v);
830 r = first_egrep_of_file (g, "/.treeinfo",
831 "^discnum = [[:digit:]]+$", 0, &str);
835 v = find_value (str);
836 discnum = parse_unsigned_int (g, v);
842 r = first_egrep_of_file (g, "/.treeinfo",
843 "^totaldiscs = [[:digit:]]+$", 0, &str);
847 v = find_value (str);
848 totaldiscs = parse_unsigned_int (g, v);
850 if (totaldiscs == -1)
854 fs->is_multipart_disk = totaldiscs > 0;
855 /* and what about discnum? */
860 /* Linux with /isolinux/isolinux.cfg.
862 * This file is not easily parsable so we have to do our best.
863 * Look for the "menu title" line which contains:
864 * menu title Welcome to Fedora 14! # since at least Fedora 10
865 * menu title Welcome to Red Hat Enterprise Linux 6.0!
868 check_isolinux_installer_root (guestfs_h *g, struct inspect_fs *fs)
873 fs->type = OS_TYPE_LINUX;
875 r = first_egrep_of_file (g, "/isolinux/isolinux.cfg",
876 "^menu title Welcome to Fedora [[:digit:]]+",
881 fs->distro = OS_DISTRO_FEDORA;
882 fs->major_version = parse_unsigned_int_ignore_trailing (g, &str[29]);
884 if (fs->major_version == -1)
888 /* XXX parse major.minor */
889 r = first_egrep_of_file (g, "/isolinux/isolinux.cfg",
890 "^menu title Welcome to Red Hat Enterprise Linux [[:digit:]]+",
895 fs->distro = OS_DISTRO_RHEL;
896 fs->major_version = parse_unsigned_int_ignore_trailing (g, &str[47]);
898 if (fs->major_version == -1)
905 /* Windows 2003 and similar versions.
907 * NB: txtsetup file contains Windows \r\n line endings, which guestfs_grep
908 * does not remove. We have to remove them by hand here.
913 size_t n = strlen (str);
914 if (n > 0 && str[n-1] == '\r')
919 trim_quot (char *str)
921 size_t n = strlen (str);
922 if (n > 0 && str[n-1] == '"')
927 check_w2k3_installer_root (guestfs_h *g, struct inspect_fs *fs,
928 const char *txtsetup)
934 fs->type = OS_TYPE_WINDOWS;
935 fs->distro = OS_DISTRO_WINDOWS;
937 r = first_egrep_of_file (g, txtsetup,
938 "^productname[[:space:]]*=[[:space:]]*\"", 1, &str);
944 v = find_value (str);
945 fs->product_name = safe_strdup (g, v+1);
949 r = first_egrep_of_file (g, txtsetup,
950 "^majorversion[[:space:]]*=[[:space:]]*[[:digit:]]+",
956 v = find_value (str);
957 fs->major_version = parse_unsigned_int_ignore_trailing (g, v);
959 if (fs->major_version == -1)
963 r = first_egrep_of_file (g, txtsetup,
964 "^minorversion[[:space:]]*=[[:space:]]*[[:digit:]]+",
970 v = find_value (str);
971 fs->minor_version = parse_unsigned_int_ignore_trailing (g, v);
973 if (fs->minor_version == -1)
977 /* This is the windows systemroot that would be chosen on
978 * installation by default, although not necessarily the one that
979 * the user will finally choose.
981 r = first_egrep_of_file (g, txtsetup, "^defaultpath[[:space:]]*=[[:space:]]*",
987 v = find_value (str);
988 fs->windows_systemroot = safe_strdup (g, v);
995 /* The currently mounted device is very likely to be an installer. */
997 check_installer_root (guestfs_h *g, struct inspect_fs *fs)
999 /* The presence of certain files indicates a live CD.
1001 * XXX Fedora netinst contains a ~120MB squashfs called
1002 * /images/install.img. However this is not a live CD (unlike the
1003 * Fedora live CDs which contain the same, but larger file). We
1004 * need to unpack this and look inside to tell the difference.
1006 if (guestfs_is_file (g, "/casper/filesystem.squashfs") > 0)
1007 fs->is_live_disk = 1;
1009 /* Debian/Ubuntu. */
1010 if (guestfs_is_file (g, "/.disk/info") > 0) {
1011 if (check_debian_installer_root (g, fs) == -1)
1015 /* Fedora CDs and DVD (not netinst). */
1016 else if (guestfs_is_file (g, "/.treeinfo") > 0) {
1017 if (check_fedora_installer_root (g, fs) == -1)
1021 /* Linux with /isolinux/isolinux.cfg. */
1022 else if (guestfs_is_file (g, "/isolinux/isolinux.cfg") > 0) {
1023 if (check_isolinux_installer_root (g, fs) == -1)
1027 /* Windows 2003 64 bit */
1028 else if (guestfs_is_file (g, "/amd64/txtsetup.sif") > 0) {
1029 fs->arch = safe_strdup (g, "x86_64");
1030 if (check_w2k3_installer_root (g, fs, "/amd64/txtsetup.sif") == -1)
1034 /* Windows 2003 32 bit */
1035 else if (guestfs_is_file (g, "/i386/txtsetup.sif") > 0) {
1036 fs->arch = safe_strdup (g, "i386");
1037 if (check_w2k3_installer_root (g, fs, "/i386/txtsetup.sif") == -1)
1045 check_architecture (guestfs_h *g, struct inspect_fs *fs)
1047 const char *binaries[] =
1048 { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" };
1051 for (i = 0; i < sizeof binaries / sizeof binaries[0]; ++i) {
1052 if (guestfs_is_file (g, binaries[i]) > 0) {
1053 /* Ignore errors from file_architecture call. */
1054 guestfs_error_handler_cb old_error_cb = g->error_cb;
1056 char *arch = guestfs_file_architecture (g, binaries[i]);
1057 g->error_cb = old_error_cb;
1060 /* String will be owned by handle, freed by
1061 * guestfs___free_inspect_info.
1070 /* Try several methods to determine the hostname from a Linux or
1071 * FreeBSD guest. Note that type and distro have been set, so we can
1072 * use that information to direct the search.
1075 check_hostname_unix (guestfs_h *g, struct inspect_fs *fs)
1079 /* Red Hat-derived would be in /etc/sysconfig/network, and
1080 * Debian-derived in the file /etc/hostname. Very old Debian and
1081 * SUSE use /etc/HOSTNAME. It's best to just look for each of
1082 * these files in turn, rather than try anything clever based on
1085 if (guestfs_is_file (g, "/etc/HOSTNAME")) {
1086 fs->hostname = first_line_of_file (g, "/etc/HOSTNAME");
1087 if (fs->hostname == NULL)
1090 else if (guestfs_is_file (g, "/etc/hostname")) {
1091 fs->hostname = first_line_of_file (g, "/etc/hostname");
1092 if (fs->hostname == NULL)
1095 else if (guestfs_is_file (g, "/etc/sysconfig/network")) {
1096 if (inspect_with_augeas (g, fs, "/etc/sysconfig/network",
1097 check_hostname_redhat) == -1)
1102 case OS_TYPE_FREEBSD:
1103 /* /etc/rc.conf contains the hostname, but there is no Augeas lens
1106 if (guestfs_is_file (g, "/etc/rc.conf")) {
1107 if (check_hostname_freebsd (g, fs) == -1)
1112 case OS_TYPE_WINDOWS: /* not here, see check_windows_system_registry */
1113 case OS_TYPE_UNKNOWN:
1115 /* nothing, keep GCC warnings happy */;
1121 /* Parse the hostname from /etc/sysconfig/network. This must be called
1122 * from the inspect_with_augeas wrapper.
1125 check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs)
1129 hostname = guestfs_aug_get (g, "/files/etc/sysconfig/network/HOSTNAME");
1133 fs->hostname = hostname; /* freed by guestfs___free_inspect_info */
1137 /* Parse the hostname from /etc/rc.conf. On FreeBSD this file
1138 * contains comments, blank lines and:
1139 * hostname="freebsd8.example.com"
1140 * ifconfig_re0="DHCP"
1145 check_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs)
1147 const char *filename = "/etc/rc.conf";
1152 /* Don't trust guestfs_read_lines not to break with very large files.
1153 * Check the file size is something reasonable first.
1155 size = guestfs_filesize (g, filename);
1157 /* guestfs_filesize failed and has already set error in handle */
1159 if (size > MAX_SMALL_FILE_SIZE) {
1160 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
1165 lines = guestfs_read_lines (g, filename);
1169 for (i = 0; lines[i] != NULL; ++i) {
1170 if (STRPREFIX (lines[i], "hostname=\"") ||
1171 STRPREFIX (lines[i], "hostname='")) {
1172 size_t len = strlen (lines[i]) - 10 - 1;
1173 fs->hostname = safe_strndup (g, &lines[i][10], len);
1175 } else if (STRPREFIX (lines[i], "hostname=")) {
1176 size_t len = strlen (lines[i]) - 9;
1177 fs->hostname = safe_strndup (g, &lines[i][9], len);
1182 guestfs___free_string_list (lines);
1187 check_fstab (guestfs_h *g, struct inspect_fs *fs)
1189 char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
1193 if (lines[0] == NULL) {
1194 error (g, _("could not parse /etc/fstab or empty file"));
1195 guestfs___free_string_list (lines);
1201 for (i = 0; lines[i] != NULL; ++i) {
1202 /* Ignore comments. Only care about sequence lines which
1205 if (match (g, lines[i], re_aug_seq)) {
1206 snprintf (augpath, sizeof augpath, "%s/spec", lines[i]);
1207 char *spec = guestfs_aug_get (g, augpath);
1209 guestfs___free_string_list (lines);
1213 snprintf (augpath, sizeof augpath, "%s/file", lines[i]);
1214 char *mp = guestfs_aug_get (g, augpath);
1216 guestfs___free_string_list (lines);
1221 int r = add_fstab_entry (g, fs, spec, mp);
1226 guestfs___free_string_list (lines);
1232 guestfs___free_string_list (lines);
1236 /* Add a filesystem and possibly a mountpoint entry for
1237 * the root filesystem 'fs'.
1239 * 'spec' is the fstab spec field, which might be a device name or a
1240 * pseudodevice or 'UUID=...' or 'LABEL=...'.
1242 * 'mp' is the mount point, which could also be 'swap' or 'none'.
1245 add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
1246 const char *spec, const char *mp)
1248 /* Ignore certain mountpoints. */
1249 if (STRPREFIX (mp, "/dev/") ||
1250 STREQ (mp, "/dev") ||
1251 STRPREFIX (mp, "/media/") ||
1252 STRPREFIX (mp, "/proc/") ||
1253 STREQ (mp, "/proc") ||
1254 STRPREFIX (mp, "/selinux/") ||
1255 STREQ (mp, "/selinux") ||
1256 STRPREFIX (mp, "/sys/") ||
1260 /* Ignore /dev/fd (floppy disks) (RHBZ#642929) and CD-ROM drives. */
1261 if ((STRPREFIX (spec, "/dev/fd") && c_isdigit (spec[7])) ||
1262 STREQ (spec, "/dev/floppy") ||
1263 STREQ (spec, "/dev/cdrom"))
1266 /* Resolve UUID= and LABEL= to the actual device. */
1267 char *device = NULL;
1268 if (STRPREFIX (spec, "UUID="))
1269 device = guestfs_findfs_uuid (g, &spec[5]);
1270 else if (STRPREFIX (spec, "LABEL="))
1271 device = guestfs_findfs_label (g, &spec[6]);
1272 /* Ignore "/.swap" (Pardus) and pseudo-devices like "tmpfs". */
1273 else if (STRPREFIX (spec, "/dev/"))
1274 /* Resolve guest block device names. */
1275 device = resolve_fstab_device (g, spec);
1277 /* If we haven't resolved the device successfully by this point,
1278 * we don't care, just ignore it.
1283 char *mountpoint = safe_strdup (g, mp);
1285 /* Add this to the fstab entry in 'fs'.
1286 * Note these are further filtered by guestfs_inspect_get_mountpoints
1287 * and guestfs_inspect_get_filesystems.
1289 size_t n = fs->nr_fstab + 1;
1290 struct inspect_fstab_entry *p;
1292 p = realloc (fs->fstab, n * sizeof (struct inspect_fstab_entry));
1294 perrorf (g, "realloc");
1303 /* These are owned by the handle and freed by guestfs___free_inspect_info. */
1304 fs->fstab[n-1].device = device;
1305 fs->fstab[n-1].mountpoint = mountpoint;
1307 debug (g, "fstab: device=%s mountpoint=%s", device, mountpoint);
1312 /* Resolve block device name to the libguestfs device name, eg.
1313 * /dev/xvdb1 => /dev/vdb1; and /dev/mapper/VG-LV => /dev/VG/LV. This
1314 * assumes that disks were added in the same order as they appear to
1315 * the real VM, which is a reasonable assumption to make. Return
1316 * anything we don't recognize unchanged.
1319 resolve_fstab_device (guestfs_h *g, const char *spec)
1322 char *device = NULL;
1323 char *bsddisk, *bsdslice, *bsdpart;
1325 if (STRPREFIX (spec, "/dev/mapper/")) {
1326 /* LVM2 does some strange munging on /dev/mapper paths for VGs and
1327 * LVs which contain '-' character:
1329 * ><fs> lvcreate LV--test VG--test 32
1330 * ><fs> debug ls /dev/mapper
1331 * VG----test-LV----test
1333 * This makes it impossible to reverse those paths directly, so
1334 * we have implemented lvm_canonical_lv_name in the daemon.
1336 device = guestfs_lvm_canonical_lv_name (g, spec);
1338 else if ((a1 = match1 (g, spec, re_xdev)) != NULL) {
1339 char **devices = guestfs_list_devices (g);
1340 if (devices == NULL)
1344 for (count = 0; devices[count] != NULL; count++)
1347 size_t i = a1[0] - 'a'; /* a1[0] is always [a-z] because of regex. */
1349 size_t len = strlen (devices[i]) + strlen (a1) + 16;
1350 device = safe_malloc (g, len);
1351 snprintf (device, len, "%s%s", devices[i], &a1[1]);
1355 guestfs___free_string_list (devices);
1357 else if (match3 (g, spec, re_freebsd, &bsddisk, &bsdslice, &bsdpart)) {
1358 /* FreeBSD disks are organized quite differently. See:
1359 * http://www.freebsd.org/doc/handbook/disk-organization.html
1360 * FreeBSD "partitions" are exposed as quasi-extended partitions
1361 * numbered from 5 in Linux. I have no idea what happens when you
1362 * have multiple "slices" (the FreeBSD term for MBR partitions).
1364 int disk = parse_unsigned_int (g, bsddisk);
1365 int slice = parse_unsigned_int (g, bsdslice);
1366 int part = bsdpart[0] - 'a' /* counting from 0 */;
1371 if (disk == -1 || disk > 26 ||
1372 slice <= 0 || slice > 1 /* > 4 .. see comment above */ ||
1373 part < 0 || part >= 26)
1376 device = safe_asprintf (g, "/dev/sd%c%d", disk + 'a', part + 5);
1380 /* Didn't match device pattern, return original spec unchanged. */
1382 device = safe_strdup (g, spec);
1387 /* XXX Handling of boot.ini in the Perl version was pretty broken. It
1388 * essentially didn't do anything for modern Windows guests.
1389 * Therefore I've omitted all that code.
1392 check_windows_root (guestfs_h *g, struct inspect_fs *fs)
1394 fs->type = OS_TYPE_WINDOWS;
1395 fs->distro = OS_DISTRO_WINDOWS;
1397 /* Try to find Windows systemroot using some common locations. */
1398 const char *systemroots[] =
1399 { "/windows", "/winnt", "/win32", "/win" };
1401 char *systemroot = NULL;
1403 systemroot == NULL && i < sizeof systemroots / sizeof systemroots[0];
1405 systemroot = resolve_windows_path_silently (g, systemroots[i]);
1409 error (g, _("cannot resolve Windows %%SYSTEMROOT%%"));
1413 debug (g, "windows %%SYSTEMROOT%% = %s", systemroot);
1415 /* Freed by guestfs___free_inspect_info. */
1416 fs->windows_systemroot = systemroot;
1418 if (check_windows_arch (g, fs) == -1)
1421 /* Product name and version. */
1422 if (check_windows_software_registry (g, fs) == -1)
1425 check_package_format (g, fs);
1426 check_package_management (g, fs);
1429 if (check_windows_system_registry (g, fs) == -1)
1436 check_windows_arch (guestfs_h *g, struct inspect_fs *fs)
1438 size_t len = strlen (fs->windows_systemroot) + 32;
1440 snprintf (cmd_exe, len, "%s/system32/cmd.exe", fs->windows_systemroot);
1442 char *cmd_exe_path = resolve_windows_path_silently (g, cmd_exe);
1446 char *arch = guestfs_file_architecture (g, cmd_exe_path);
1447 free (cmd_exe_path);
1450 fs->arch = arch; /* freed by guestfs___free_inspect_info */
1455 /* At the moment, pull just the ProductName and version numbers from
1456 * the registry. In future there is a case for making many more
1457 * registry fields available to callers.
1460 check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs)
1462 TMP_TEMPLATE_ON_STACK (software_local);
1464 size_t len = strlen (fs->windows_systemroot) + 64;
1466 snprintf (software, len, "%s/system32/config/software",
1467 fs->windows_systemroot);
1469 char *software_path = resolve_windows_path_silently (g, software);
1471 /* If the software hive doesn't exist, just accept that we cannot
1472 * find product_name etc.
1478 hive_value_h *values = NULL;
1480 if (download_to_tmp (g, software_path, software_local,
1481 MAX_REGISTRY_SIZE) == -1)
1484 h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
1486 perrorf (g, "hivex_open");
1490 hive_node_h node = hivex_root (h);
1491 const char *hivepath[] =
1492 { "Microsoft", "Windows NT", "CurrentVersion" };
1495 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
1497 node = hivex_node_get_child (h, node, hivepath[i]);
1501 perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion");
1505 values = hivex_node_values (h, node);
1507 for (i = 0; values[i] != 0; ++i) {
1508 char *key = hivex_value_key (h, values[i]);
1510 perrorf (g, "hivex_value_key");
1514 if (STRCASEEQ (key, "ProductName")) {
1515 fs->product_name = hivex_value_string (h, values[i]);
1516 if (!fs->product_name) {
1517 perrorf (g, "hivex_value_string");
1522 else if (STRCASEEQ (key, "CurrentVersion")) {
1523 char *version = hivex_value_string (h, values[i]);
1525 perrorf (g, "hivex_value_string");
1529 char *major, *minor;
1530 if (match2 (g, version, re_windows_version, &major, &minor)) {
1531 fs->major_version = parse_unsigned_int (g, major);
1533 if (fs->major_version == -1) {
1539 fs->minor_version = parse_unsigned_int (g, minor);
1541 if (fs->minor_version == -1) {
1557 if (h) hivex_close (h);
1559 free (software_path);
1561 /* Free up the temporary file. */
1562 unlink (software_local);
1563 #undef software_local_len
1569 check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs)
1571 TMP_TEMPLATE_ON_STACK (system_local);
1573 size_t len = strlen (fs->windows_systemroot) + 64;
1575 snprintf (system, len, "%s/system32/config/system",
1576 fs->windows_systemroot);
1578 char *system_path = resolve_windows_path_silently (g, system);
1580 /* If the system hive doesn't exist, just accept that we cannot
1581 * find hostname etc.
1587 hive_value_h *values = NULL;
1589 if (download_to_tmp (g, system_path, system_local, MAX_REGISTRY_SIZE) == -1)
1592 h = hivex_open (system_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
1594 perrorf (g, "hivex_open");
1598 hive_node_h node = hivex_root (h);
1599 /* XXX Don't hard-code ControlSet001. The current control set would
1600 * be another good thing to expose up through the inspection API.
1602 const char *hivepath[] =
1603 { "ControlSet001", "Services", "Tcpip", "Parameters" };
1606 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
1608 node = hivex_node_get_child (h, node, hivepath[i]);
1612 perrorf (g, "hivex: cannot locate HKLM\\SYSTEM\\ControlSet001\\Services\\Tcpip\\Parameters");
1616 values = hivex_node_values (h, node);
1618 for (i = 0; values[i] != 0; ++i) {
1619 char *key = hivex_value_key (h, values[i]);
1621 perrorf (g, "hivex_value_key");
1625 if (STRCASEEQ (key, "Hostname")) {
1626 fs->hostname = hivex_value_string (h, values[i]);
1627 if (!fs->hostname) {
1628 perrorf (g, "hivex_value_string");
1633 /* many other interesting fields here ... */
1641 if (h) hivex_close (h);
1645 /* Free up the temporary file. */
1646 unlink (system_local);
1647 #undef system_local_len
1653 resolve_windows_path_silently (guestfs_h *g, const char *path)
1655 guestfs_error_handler_cb old_error_cb = g->error_cb;
1657 char *ret = guestfs_case_sensitive_path (g, path);
1658 g->error_cb = old_error_cb;
1663 is_file_nocase (guestfs_h *g, const char *path)
1668 p = resolve_windows_path_silently (g, path);
1671 r = guestfs_is_file (g, p);
1677 is_dir_nocase (guestfs_h *g, const char *path)
1682 p = resolve_windows_path_silently (g, path);
1685 r = guestfs_is_dir (g, p);
1691 extend_fses (guestfs_h *g)
1693 size_t n = g->nr_fses + 1;
1694 struct inspect_fs *p;
1696 p = realloc (g->fses, n * sizeof (struct inspect_fs));
1698 perrorf (g, "realloc");
1705 memset (&g->fses[n-1], 0, sizeof (struct inspect_fs));
1710 /* Parse small, unsigned ints, as used in version numbers. */
1712 parse_unsigned_int (guestfs_h *g, const char *str)
1715 int r = xstrtol (str, NULL, 10, &ret, "");
1716 if (r != LONGINT_OK) {
1717 error (g, _("could not parse integer in version number: %s"), str);
1723 /* Like parse_unsigned_int, but ignore trailing stuff. */
1725 parse_unsigned_int_ignore_trailing (guestfs_h *g, const char *str)
1728 int r = xstrtol (str, NULL, 10, &ret, NULL);
1729 if (r != LONGINT_OK) {
1730 error (g, _("could not parse integer in version number: %s"), str);
1736 /* At the moment, package format and package management is just a
1737 * simple function of the distro and major_version fields, so these
1738 * can never return an error. We might be cleverer in future.
1741 check_package_format (guestfs_h *g, struct inspect_fs *fs)
1743 switch (fs->distro) {
1744 case OS_DISTRO_FEDORA:
1745 case OS_DISTRO_MEEGO:
1746 case OS_DISTRO_REDHAT_BASED:
1747 case OS_DISTRO_RHEL:
1748 case OS_DISTRO_MANDRIVA:
1749 fs->package_format = OS_PACKAGE_FORMAT_RPM;
1752 case OS_DISTRO_DEBIAN:
1753 case OS_DISTRO_UBUNTU:
1754 case OS_DISTRO_LINUX_MINT:
1755 fs->package_format = OS_PACKAGE_FORMAT_DEB;
1758 case OS_DISTRO_ARCHLINUX:
1759 fs->package_format = OS_PACKAGE_FORMAT_PACMAN;
1761 case OS_DISTRO_GENTOO:
1762 fs->package_format = OS_PACKAGE_FORMAT_EBUILD;
1764 case OS_DISTRO_PARDUS:
1765 fs->package_format = OS_PACKAGE_FORMAT_PISI;
1768 case OS_DISTRO_WINDOWS:
1769 case OS_DISTRO_UNKNOWN:
1771 fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN;
1777 check_package_management (guestfs_h *g, struct inspect_fs *fs)
1779 switch (fs->distro) {
1780 case OS_DISTRO_FEDORA:
1781 case OS_DISTRO_MEEGO:
1782 fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
1785 case OS_DISTRO_REDHAT_BASED:
1786 case OS_DISTRO_RHEL:
1787 if (fs->major_version >= 5)
1788 fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
1790 fs->package_management = OS_PACKAGE_MANAGEMENT_UP2DATE;
1793 case OS_DISTRO_DEBIAN:
1794 case OS_DISTRO_UBUNTU:
1795 case OS_DISTRO_LINUX_MINT:
1796 fs->package_management = OS_PACKAGE_MANAGEMENT_APT;
1799 case OS_DISTRO_ARCHLINUX:
1800 fs->package_management = OS_PACKAGE_MANAGEMENT_PACMAN;
1802 case OS_DISTRO_GENTOO:
1803 fs->package_management = OS_PACKAGE_MANAGEMENT_PORTAGE;
1805 case OS_DISTRO_PARDUS:
1806 fs->package_management = OS_PACKAGE_MANAGEMENT_PISI;
1808 case OS_DISTRO_MANDRIVA:
1809 fs->package_management = OS_PACKAGE_MANAGEMENT_URPMI;
1812 case OS_DISTRO_WINDOWS:
1813 case OS_DISTRO_UNKNOWN:
1815 fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN;
1820 static struct inspect_fs *
1821 search_for_root (guestfs_h *g, const char *root)
1823 if (g->nr_fses == 0) {
1824 error (g, _("no inspection data: call guestfs_inspect_os first"));
1829 struct inspect_fs *fs;
1830 for (i = 0; i < g->nr_fses; ++i) {
1832 if (fs->is_root && STREQ (root, fs->device))
1836 error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"),
1842 guestfs__inspect_get_roots (guestfs_h *g)
1844 /* NB. Doesn't matter if g->nr_fses == 0. We just return an empty
1845 * list in this case.
1850 for (i = 0; i < g->nr_fses; ++i)
1851 if (g->fses[i].is_root)
1854 char **ret = calloc (count+1, sizeof (char *));
1856 perrorf (g, "calloc");
1861 for (i = 0; i < g->nr_fses; ++i) {
1862 if (g->fses[i].is_root) {
1863 ret[count] = safe_strdup (g, g->fses[i].device);
1873 guestfs__inspect_get_type (guestfs_h *g, const char *root)
1875 struct inspect_fs *fs = search_for_root (g, root);
1881 case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
1882 case OS_TYPE_WINDOWS: ret = safe_strdup (g, "windows"); break;
1883 case OS_TYPE_FREEBSD: ret = safe_strdup (g, "freebsd"); break;
1884 case OS_TYPE_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1891 guestfs__inspect_get_arch (guestfs_h *g, const char *root)
1893 struct inspect_fs *fs = search_for_root (g, root);
1897 return safe_strdup (g, fs->arch ? : "unknown");
1901 guestfs__inspect_get_distro (guestfs_h *g, const char *root)
1903 struct inspect_fs *fs = search_for_root (g, root);
1908 switch (fs->distro) {
1909 case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break;
1910 case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
1911 case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
1912 case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
1913 case OS_DISTRO_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
1914 case OS_DISTRO_MANDRIVA: ret = safe_strdup (g, "mandriva"); break;
1915 case OS_DISTRO_MEEGO: ret = safe_strdup (g, "meego"); break;
1916 case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
1917 case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
1918 case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); break;
1919 case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break;
1920 case OS_DISTRO_UBUNTU: ret = safe_strdup (g, "ubuntu"); break;
1921 case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1928 guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
1930 struct inspect_fs *fs = search_for_root (g, root);
1934 return fs->major_version;
1938 guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
1940 struct inspect_fs *fs = search_for_root (g, root);
1944 return fs->minor_version;
1948 guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
1950 struct inspect_fs *fs = search_for_root (g, root);
1954 return safe_strdup (g, fs->product_name ? : "unknown");
1958 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
1960 struct inspect_fs *fs = search_for_root (g, root);
1964 if (!fs->windows_systemroot) {
1965 error (g, _("not a Windows guest, or systemroot could not be determined"));
1969 return safe_strdup (g, fs->windows_systemroot);
1973 guestfs__inspect_get_format (guestfs_h *g, const char *root)
1975 struct inspect_fs *fs = search_for_root (g, root);
1980 switch (fs->format) {
1981 case OS_FORMAT_INSTALLED: ret = safe_strdup (g, "installed"); break;
1982 case OS_FORMAT_INSTALLER: ret = safe_strdup (g, "installer"); break;
1983 case OS_FORMAT_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
1990 guestfs__inspect_is_live (guestfs_h *g, const char *root)
1992 struct inspect_fs *fs = search_for_root (g, root);
1996 return fs->is_live_disk;
2000 guestfs__inspect_is_netinst (guestfs_h *g, const char *root)
2002 struct inspect_fs *fs = search_for_root (g, root);
2006 return fs->is_netinst_disk;
2010 guestfs__inspect_is_multipart (guestfs_h *g, const char *root)
2012 struct inspect_fs *fs = search_for_root (g, root);
2016 return fs->is_multipart_disk;
2020 guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
2022 struct inspect_fs *fs = search_for_root (g, root);
2028 /* If no fstab information (Windows) return just the root. */
2029 if (fs->nr_fstab == 0) {
2030 ret = calloc (3, sizeof (char *));
2031 ret[0] = safe_strdup (g, "/");
2032 ret[1] = safe_strdup (g, root);
2037 #define CRITERION fs->fstab[i].mountpoint[0] == '/'
2038 size_t i, count = 0;
2039 for (i = 0; i < fs->nr_fstab; ++i)
2043 /* Hashtables have 2N+1 entries. */
2044 ret = calloc (2*count+1, sizeof (char *));
2046 perrorf (g, "calloc");
2051 for (i = 0; i < fs->nr_fstab; ++i)
2053 ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint);
2054 ret[2*count+1] = safe_strdup (g, fs->fstab[i].device);
2063 guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
2065 struct inspect_fs *fs = search_for_root (g, root);
2071 /* If no fstab information (Windows) return just the root. */
2072 if (fs->nr_fstab == 0) {
2073 ret = calloc (2, sizeof (char *));
2074 ret[0] = safe_strdup (g, root);
2079 ret = calloc (fs->nr_fstab + 1, sizeof (char *));
2081 perrorf (g, "calloc");
2086 for (i = 0; i < fs->nr_fstab; ++i)
2087 ret[i] = safe_strdup (g, fs->fstab[i].device);
2093 guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
2095 struct inspect_fs *fs = search_for_root (g, root);
2100 switch (fs->package_format) {
2101 case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break;
2102 case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break;
2103 case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break;
2104 case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break;
2105 case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break;
2106 case OS_PACKAGE_FORMAT_UNKNOWN:
2108 ret = safe_strdup (g, "unknown");
2116 guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
2118 struct inspect_fs *fs = search_for_root (g, root);
2123 switch (fs->package_management) {
2124 case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break;
2125 case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break;
2126 case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break;
2127 case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
2128 case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
2129 case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
2130 case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break;
2131 case OS_PACKAGE_MANAGEMENT_UNKNOWN:
2133 ret = safe_strdup (g, "unknown");
2141 guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
2143 struct inspect_fs *fs = search_for_root (g, root);
2147 return safe_strdup (g, fs->hostname ? : "unknown");
2151 static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
2153 static struct guestfs_application_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs);
2154 static struct guestfs_application_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs);
2155 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);
2156 static void sort_applications (struct guestfs_application_list *);
2158 /* Unlike the simple inspect-get-* calls, this one assumes that the
2159 * disks are mounted up, and reads files from the mounted disks.
2161 struct guestfs_application_list *
2162 guestfs__inspect_list_applications (guestfs_h *g, const char *root)
2164 struct inspect_fs *fs = search_for_root (g, root);
2168 struct guestfs_application_list *ret = NULL;
2170 /* Presently we can only list applications for installed disks. It
2171 * is possible in future to get lists of packages from installers.
2173 if (fs->format == OS_FORMAT_INSTALLED) {
2176 switch (fs->package_format) {
2177 case OS_PACKAGE_FORMAT_RPM:
2179 ret = list_applications_rpm (g, fs);
2185 case OS_PACKAGE_FORMAT_DEB:
2186 ret = list_applications_deb (g, fs);
2191 case OS_PACKAGE_FORMAT_PACMAN:
2192 case OS_PACKAGE_FORMAT_EBUILD:
2193 case OS_PACKAGE_FORMAT_PISI:
2194 case OS_PACKAGE_FORMAT_UNKNOWN:
2196 /* nothing - keep GCC happy */;
2200 case OS_TYPE_WINDOWS:
2201 ret = list_applications_windows (g, fs);
2206 case OS_TYPE_FREEBSD:
2207 case OS_TYPE_UNKNOWN:
2209 /* nothing - keep GCC happy */;
2214 /* Don't know how to do inspection. Not an error, return an
2217 ret = safe_malloc (g, sizeof *ret);
2222 sort_applications (ret);
2228 static struct guestfs_application_list *
2229 list_applications_rpm (guestfs_h *g, struct inspect_fs *fs)
2231 TMP_TEMPLATE_ON_STACK (tmpfile);
2233 if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, MAX_PKG_DB_SIZE) == -1)
2236 struct guestfs_application_list *apps = NULL, *ret = NULL;
2237 #define cmd_len (strlen (tmpfile) + 64)
2243 snprintf (cmd, cmd_len, DB_DUMP " -p '%s'", tmpfile);
2245 debug (g, "list_applications_rpm: %s", cmd);
2247 pp = popen (cmd, "r");
2249 perrorf (g, "popen: %s", cmd);
2253 /* Ignore everything to end-of-header marker. */
2255 if (fgets (line, sizeof line, pp) == NULL) {
2256 error (g, _("unexpected end of output from db_dump command"));
2260 len = strlen (line);
2261 if (len > 0 && line[len-1] == '\n') {
2266 if (STREQ (line, "HEADER=END"))
2270 /* Allocate 'apps' list. */
2271 apps = safe_malloc (g, sizeof *apps);
2275 /* Read alternate lines until end of data marker. */
2277 if (fgets (line, sizeof line, pp) == NULL) {
2278 error (g, _("unexpected end of output from db_dump command"));
2282 len = strlen (line);
2283 if (len > 0 && line[len-1] == '\n') {
2288 if (STREQ (line, "DATA=END"))
2292 if (len > 0 && line[0] == ' ')
2294 /* Ignore any application name that contains non-printable chars.
2295 * In the db_dump output these would be escaped with backslash, so
2296 * we can just ignore any such line.
2298 if (strchr (p, '\\') == NULL)
2299 add_application (g, apps, p, "", 0, "", "", "", "", "", "");
2301 /* Discard next line. */
2302 if (fgets (line, sizeof line, pp) == NULL) {
2303 error (g, _("unexpected end of output from db_dump command"));
2308 /* Catch errors from the db_dump command. */
2309 if (pclose (pp) == -1) {
2310 perrorf (g, "pclose: %s", cmd);
2318 if (ret == NULL && apps != NULL)
2319 guestfs_free_application_list (apps);
2327 #endif /* defined DB_DUMP */
2329 static struct guestfs_application_list *
2330 list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
2332 TMP_TEMPLATE_ON_STACK (tmpfile);
2334 if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile,
2335 MAX_PKG_DB_SIZE) == -1)
2338 struct guestfs_application_list *apps = NULL, *ret = NULL;
2342 char *name = NULL, *version = NULL, *release = NULL;
2343 int installed_flag = 0;
2345 fp = fopen (tmpfile, "r");
2347 perrorf (g, "fopen: %s", tmpfile);
2351 /* Allocate 'apps' list. */
2352 apps = safe_malloc (g, sizeof *apps);
2356 /* Read the temporary file. Each package entry is separated by
2358 * XXX Strictly speaking this is in mailbox header format, so it
2359 * would be possible for fields to spread across multiple lines,
2360 * although for the short fields that we are concerned about this is
2361 * unlikely and not seen in practice.
2363 while (fgets (line, sizeof line, fp) != NULL) {
2364 len = strlen (line);
2365 if (len > 0 && line[len-1] == '\n') {
2370 if (STRPREFIX (line, "Package: ")) {
2372 name = safe_strdup (g, &line[9]);
2374 else if (STRPREFIX (line, "Status: ")) {
2375 installed_flag = strstr (&line[8], "installed") != NULL;
2377 else if (STRPREFIX (line, "Version: ")) {
2380 char *p = strchr (&line[9], '-');
2383 version = safe_strdup (g, &line[9]);
2384 release = safe_strdup (g, p+1);
2386 version = safe_strdup (g, &line[9]);
2390 else if (STREQ (line, "")) {
2391 if (installed_flag && name && version)
2392 add_application (g, apps, name, "", 0, version, release ? : "",
2397 name = version = release = NULL;
2402 if (fclose (fp) == -1) {
2403 perrorf (g, "fclose: %s", tmpfile);
2411 if (ret == NULL && apps != NULL)
2412 guestfs_free_application_list (apps);
2422 /* XXX We already download the SOFTWARE hive when doing general
2423 * inspection. We could avoid this second download of the same file
2424 * by caching these entries in the handle.
2426 static struct guestfs_application_list *
2427 list_applications_windows (guestfs_h *g, struct inspect_fs *fs)
2429 TMP_TEMPLATE_ON_STACK (software_local);
2431 size_t len = strlen (fs->windows_systemroot) + 64;
2433 snprintf (software, len, "%s/system32/config/software",
2434 fs->windows_systemroot);
2436 char *software_path = resolve_windows_path_silently (g, software);
2438 /* If the software hive doesn't exist, just accept that we cannot
2439 * find product_name etc.
2443 struct guestfs_application_list *apps = NULL, *ret = NULL;
2445 hive_node_h *children = NULL;
2447 if (download_to_tmp (g, software_path, software_local,
2448 MAX_REGISTRY_SIZE) == -1)
2451 h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
2453 perrorf (g, "hivex_open");
2457 hive_node_h node = hivex_root (h);
2458 const char *hivepath[] =
2459 { "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
2462 node != 0 && i < sizeof hivepath / sizeof hivepath[0];
2464 node = hivex_node_get_child (h, node, hivepath[i]);
2468 perrorf (g, "hivex: cannot locate HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");
2472 children = hivex_node_children (h, node);
2473 if (children == NULL) {
2474 perrorf (g, "hivex_node_children");
2478 /* Allocate 'apps' list. */
2479 apps = safe_malloc (g, sizeof *apps);
2483 /* Consider any child node that has a DisplayName key.
2485 * http://nsis.sourceforge.net/Add_uninstall_information_to_Add/Remove_Programs#Optional_values
2487 for (i = 0; children[i] != 0; ++i) {
2490 char *display_name = NULL;
2491 char *version = NULL;
2492 char *install_path = NULL;
2493 char *publisher = NULL;
2495 char *comments = NULL;
2497 /* Use the node name as a proxy for the package name in Linux. The
2498 * display name is not language-independent, so it cannot be used.
2500 name = hivex_node_name (h, children[i]);
2502 perrorf (g, "hivex_node_get_name");
2506 value = hivex_node_get_value (h, children[i], "DisplayName");
2508 display_name = hivex_value_string (h, value);
2510 value = hivex_node_get_value (h, children[i], "DisplayVersion");
2512 version = hivex_value_string (h, value);
2513 value = hivex_node_get_value (h, children[i], "InstallLocation");
2515 install_path = hivex_value_string (h, value);
2516 value = hivex_node_get_value (h, children[i], "Publisher");
2518 publisher = hivex_value_string (h, value);
2519 value = hivex_node_get_value (h, children[i], "URLInfoAbout");
2521 url = hivex_value_string (h, value);
2522 value = hivex_node_get_value (h, children[i], "Comments");
2524 comments = hivex_value_string (h, value);
2526 add_application (g, apps, name, display_name, 0,
2529 install_path ? : "",
2537 free (display_name);
2539 free (install_path);
2548 if (ret == NULL && apps != NULL)
2549 guestfs_free_application_list (apps);
2550 if (h) hivex_close (h);
2552 free (software_path);
2554 /* Free up the temporary file. */
2555 unlink (software_local);
2556 #undef software_local_len
2562 add_application (guestfs_h *g, struct guestfs_application_list *apps,
2563 const char *name, const char *display_name, int32_t epoch,
2564 const char *version, const char *release,
2565 const char *install_path,
2566 const char *publisher, const char *url,
2567 const char *description)
2570 apps->val = safe_realloc (g, apps->val,
2571 apps->len * sizeof (struct guestfs_application));
2572 apps->val[apps->len-1].app_name = safe_strdup (g, name);
2573 apps->val[apps->len-1].app_display_name = safe_strdup (g, display_name);
2574 apps->val[apps->len-1].app_epoch = epoch;
2575 apps->val[apps->len-1].app_version = safe_strdup (g, version);
2576 apps->val[apps->len-1].app_release = safe_strdup (g, release);
2577 apps->val[apps->len-1].app_install_path = safe_strdup (g, install_path);
2578 /* XXX Translated path is not implemented yet. */
2579 apps->val[apps->len-1].app_trans_path = safe_strdup (g, "");
2580 apps->val[apps->len-1].app_publisher = safe_strdup (g, publisher);
2581 apps->val[apps->len-1].app_url = safe_strdup (g, url);
2582 /* XXX The next two are not yet implemented for any package
2583 * format, but we could easily support them for rpm and deb.
2585 apps->val[apps->len-1].app_source_package = safe_strdup (g, "");
2586 apps->val[apps->len-1].app_summary = safe_strdup (g, "");
2587 apps->val[apps->len-1].app_description = safe_strdup (g, description);
2590 /* Sort applications by name before returning the list. */
2592 compare_applications (const void *vp1, const void *vp2)
2594 const struct guestfs_application *v1 = vp1;
2595 const struct guestfs_application *v2 = vp2;
2597 return strcmp (v1->app_name, v2->app_name);
2601 sort_applications (struct guestfs_application_list *apps)
2603 if (apps && apps->val)
2604 qsort (apps->val, apps->len, sizeof (struct guestfs_application),
2605 compare_applications);
2608 /* Download to a guest file to a local temporary file. Refuse to
2609 * download the guest file if it is larger than max_size. The caller
2610 * is responsible for deleting the temporary file after use.
2613 download_to_tmp (guestfs_h *g, const char *filename,
2614 char *localtmp, int64_t max_size)
2620 size = guestfs_filesize (g, filename);
2622 /* guestfs_filesize failed and has already set error in handle */
2624 if (size > max_size) {
2625 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
2630 fd = mkstemp (localtmp);
2632 perrorf (g, "mkstemp");
2636 snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
2638 if (guestfs_download (g, filename, buf) == -1) {
2644 if (close (fd) == -1) {
2645 perrorf (g, "close: %s", localtmp);
2653 /* Call 'f' with Augeas opened and having parsed 'filename' (this file
2654 * must exist). As a security measure, this bails if the file is too
2655 * large for a reasonable configuration file. After the call to 'f'
2659 inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename,
2660 int (*f) (guestfs_h *, struct inspect_fs *))
2662 /* Security: Refuse to do this if filename is too large. */
2663 int64_t size = guestfs_filesize (g, filename);
2665 /* guestfs_filesize failed and has already set error in handle */
2667 if (size > MAX_AUGEAS_FILE_SIZE) {
2668 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
2673 /* If !feature_available (g, "augeas") then the next call will fail.
2674 * Arguably we might want to fall back to a non-Augeas method in
2677 if (guestfs_aug_init (g, "/", 16|32) == -1)
2682 /* Tell Augeas to only load one file (thanks Raphaël Pinson). */
2683 char buf[strlen (filename) + 64];
2684 snprintf (buf, strlen (filename) + 64, "/augeas/load//incl[. != \"%s\"]",
2686 if (guestfs_aug_rm (g, buf) == -1)
2689 if (guestfs_aug_load (g) == -1)
2695 guestfs_aug_close (g);
2700 /* Get the first line of a small file, without any trailing newline
2704 first_line_of_file (guestfs_h *g, const char *filename)
2710 /* Don't trust guestfs_head_n not to break with very large files.
2711 * Check the file size is something reasonable first.
2713 size = guestfs_filesize (g, filename);
2715 /* guestfs_filesize failed and has already set error in handle */
2717 if (size > MAX_SMALL_FILE_SIZE) {
2718 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
2723 lines = guestfs_head_n (g, 1, filename);
2726 if (lines[0] == NULL) {
2727 error (g, _("%s: file is empty"), filename);
2728 guestfs___free_string_list (lines);
2731 /* lines[1] should be NULL because of '1' argument above ... */
2733 ret = lines[0]; /* caller frees */
2734 free (lines); /* free the array */
2739 /* Get the first matching line (using guestfs_egrep{,i}) of a small file,
2740 * without any trailing newline character.
2742 * Returns: 1 = returned a line (in *ret)
2747 first_egrep_of_file (guestfs_h *g, const char *filename,
2748 const char *eregex, int iflag, char **ret)
2754 /* Don't trust guestfs_egrep not to break with very large files.
2755 * Check the file size is something reasonable first.
2757 size = guestfs_filesize (g, filename);
2759 /* guestfs_filesize failed and has already set error in handle */
2761 if (size > MAX_SMALL_FILE_SIZE) {
2762 error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
2767 lines = (!iflag ? guestfs_egrep : guestfs_egrepi) (g, eregex, filename);
2770 if (lines[0] == NULL) {
2771 guestfs___free_string_list (lines);
2775 *ret = lines[0]; /* caller frees */
2777 /* free up any other matches and the array itself */
2778 for (i = 1; lines[i] != NULL; ++i)
2785 #else /* no PCRE or hivex at compile time */
2787 /* XXX These functions should be in an optgroup. */
2789 #define NOT_IMPL(r) \
2790 error (g, _("inspection API not available since this version of libguestfs was compiled without PCRE or hivex libraries")); \
2794 guestfs__inspect_os (guestfs_h *g)
2800 guestfs__inspect_get_roots (guestfs_h *g)
2806 guestfs__inspect_get_type (guestfs_h *g, const char *root)
2812 guestfs__inspect_get_arch (guestfs_h *g, const char *root)
2818 guestfs__inspect_get_distro (guestfs_h *g, const char *root)
2824 guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
2830 guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
2836 guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
2842 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
2848 guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
2854 guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
2860 guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
2866 guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
2872 guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
2877 struct guestfs_application_list *
2878 guestfs__inspect_list_applications (guestfs_h *g, const char *root)
2884 guestfs__inspect_get_format (guestfs_h *g, const char *root)
2890 guestfs__inspect_is_live (guestfs_h *g, const char *root)
2896 guestfs__inspect_is_netinst (guestfs_h *g, const char *root)
2902 guestfs__inspect_is_multipart (guestfs_h *g, const char *root)
2907 #endif /* no PCRE or hivex at compile time */
2910 guestfs___free_inspect_info (guestfs_h *g)
2913 for (i = 0; i < g->nr_fses; ++i) {
2914 free (g->fses[i].device);
2915 free (g->fses[i].product_name);
2916 free (g->fses[i].arch);
2917 free (g->fses[i].hostname);
2918 free (g->fses[i].windows_systemroot);
2920 for (j = 0; j < g->fses[i].nr_fstab; ++j) {
2921 free (g->fses[i].fstab[j].device);
2922 free (g->fses[i].fstab[j].mountpoint);
2924 free (g->fses[i].fstab);
2931 /* In the Perl code this is a public function. */
2933 guestfs___feature_available (guestfs_h *g, const char *feature)
2935 /* If there's an error we should ignore it, so to do that we have to
2936 * temporarily replace the error handler with a null one.
2938 guestfs_error_handler_cb old_error_cb = g->error_cb;
2941 const char *groups[] = { feature, NULL };
2942 int r = guestfs_available (g, (char * const *) groups);
2944 g->error_cb = old_error_cb;
2946 return r == 0 ? 1 : 0;
2951 /* Match a regular expression which contains no captures. Returns
2952 * true if it matches or false if it doesn't.
2955 guestfs___match (guestfs_h *g, const char *str, const pcre *re)
2957 size_t len = strlen (str);
2960 r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
2961 if (r == PCRE_ERROR_NOMATCH)
2964 /* Internal error -- should not happen. */
2965 warning (g, "%s: %s: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
2966 __FILE__, __func__, r, str);
2973 /* Match a regular expression which contains exactly one capture. If
2974 * the string matches, return the capture, otherwise return NULL. The
2975 * caller must free the result.
2978 guestfs___match1 (guestfs_h *g, const char *str, const pcre *re)
2980 size_t len = strlen (str);
2983 r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
2984 if (r == PCRE_ERROR_NOMATCH)
2987 /* Internal error -- should not happen. */
2988 warning (g, "%s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"",
2989 __FILE__, __func__, r, str);
2993 return safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
2996 /* Match a regular expression which contains exactly two captures. */
2998 guestfs___match2 (guestfs_h *g, const char *str, const pcre *re,
2999 char **ret1, char **ret2)
3001 size_t len = strlen (str);
3004 r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
3005 if (r == PCRE_ERROR_NOMATCH)
3008 /* Internal error -- should not happen. */
3009 warning (g, "%s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"",
3010 __FILE__, __func__, r, str);
3014 *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
3015 *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
3020 /* Match a regular expression which contains exactly three captures. */
3022 guestfs___match3 (guestfs_h *g, const char *str, const pcre *re,
3023 char **ret1, char **ret2, char **ret3)
3025 size_t len = strlen (str);
3028 r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
3029 if (r == PCRE_ERROR_NOMATCH)
3032 /* Internal error -- should not happen. */
3033 warning (g, "%s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"",
3034 __FILE__, __func__, r, str);
3038 *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
3039 *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
3040 *ret3 = safe_strndup (g, &str[vec[6]], vec[7]-vec[6]);
3045 #endif /* HAVE_PCRE */