- g->error_cb = old_error_cb;
-
- return r == 0 ? 1 : 0;
-}
-
-/* Find out if 'device' contains a filesystem. If it does, add
- * another entry in g->fses.
- */
-static int check_filesystem (guestfs_h *g, const char *device);
-static int check_linux_root (guestfs_h *g, struct inspect_fs *fs);
-static int check_fstab (guestfs_h *g, struct inspect_fs *fs);
-static int check_windows_root (guestfs_h *g, struct inspect_fs *fs);
-static int check_windows_arch (guestfs_h *g, struct inspect_fs *fs,
- const char *systemroot);
-static int check_windows_registry (guestfs_h *g, struct inspect_fs *fs,
- const char *systemroot);
-static char *resolve_windows_path_silently (guestfs_h *g, const char *);
-static int extend_fses (guestfs_h *g);
-static int parse_unsigned_int (guestfs_h *g, const char *str);
-static int add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
- const char *spec, const char *mp);
-static char *resolve_fstab_device (guestfs_h *g, const char *spec);
-
-static int
-check_for_filesystem_on (guestfs_h *g, const char *device)
-{
- /* Get vfs-type in order to check if it's a Linux(?) swap device.
- * If there's an error we should ignore it, so to do that we have to
- * temporarily replace the error handler with a null one.
- */
- guestfs_error_handler_cb old_error_cb = g->error_cb;
- g->error_cb = NULL;
- char *vfs_type = guestfs_vfs_type (g, device);
- g->error_cb = old_error_cb;
-
- int is_swap = vfs_type && STREQ (vfs_type, "swap");
-
- if (g->verbose)
- fprintf (stderr, "check_for_filesystem_on: %s (%s)\n",
- device, vfs_type ? vfs_type : "failed to get vfs type");
-
- if (is_swap) {
- free (vfs_type);
- if (extend_fses (g) == -1)
- return -1;
- g->fses[g->nr_fses-1].is_swap = 1;
- return 0;
- }
-
- /* Try mounting the device. As above, ignore errors. */
- g->error_cb = NULL;
- int r = guestfs_mount_ro (g, device, "/");
- if (r == -1 && vfs_type && STREQ (vfs_type, "ufs")) /* Hack for the *BSDs. */
- r = guestfs_mount_vfs (g, "ro,ufstype=ufs2", "ufs", device, "/");
- free (vfs_type);
- g->error_cb = old_error_cb;
- if (r == -1)
- return 0;
-
- /* Do the rest of the checks. */
- r = check_filesystem (g, device);
-
- /* Unmount the filesystem. */
- if (guestfs_umount_all (g) == -1)
- return -1;
-
- return r;
-}
-
-static int
-check_filesystem (guestfs_h *g, const char *device)
-{
- if (extend_fses (g) == -1)
- return -1;
-
- struct inspect_fs *fs = &g->fses[g->nr_fses-1];
-
- fs->device = safe_strdup (g, device);
- fs->is_mountable = 1;
-
- /* Grub /boot? */
- if (guestfs_is_file (g, "/grub/menu.lst") > 0 ||
- guestfs_is_file (g, "/grub/grub.conf") > 0)
- fs->content = FS_CONTENT_LINUX_BOOT;
- /* Linux root? */
- else if (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
- guestfs_is_file (g, "/etc/fstab") > 0) {
- fs->is_root = 1;
- fs->content = FS_CONTENT_LINUX_ROOT;
- if (check_linux_root (g, fs) == -1)
- return -1;
- }
- /* Linux /usr/local? */
- else if (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
- guestfs_is_dir (g, "/share") > 0 &&
- guestfs_exists (g, "/local") == 0 &&
- guestfs_is_file (g, "/etc/fstab") == 0)
- fs->content = FS_CONTENT_LINUX_USR_LOCAL;
- /* Linux /usr? */
- else if (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
- guestfs_is_dir (g, "/share") > 0 &&
- guestfs_exists (g, "/local") > 0 &&
- guestfs_is_file (g, "/etc/fstab") == 0)
- fs->content = FS_CONTENT_LINUX_USR;
- /* Linux /var? */
- else if (guestfs_is_dir (g, "/log") > 0 &&
- guestfs_is_dir (g, "/run") > 0 &&
- guestfs_is_dir (g, "/spool") > 0)
- fs->content = FS_CONTENT_LINUX_VAR;
- /* Windows root? */
- else if (guestfs_is_file (g, "/AUTOEXEC.BAT") > 0 ||
- guestfs_is_file (g, "/autoexec.bat") > 0 ||
- guestfs_is_dir (g, "/Program Files") > 0 ||
- guestfs_is_dir (g, "/WINDOWS") > 0 ||
- guestfs_is_dir (g, "/Windows") > 0 ||
- guestfs_is_dir (g, "/windows") > 0 ||
- guestfs_is_dir (g, "/WIN32") > 0 ||
- guestfs_is_dir (g, "/Win32") > 0 ||
- guestfs_is_dir (g, "/WINNT") > 0 ||
- guestfs_is_file (g, "/boot.ini") > 0 ||
- guestfs_is_file (g, "/ntldr") > 0) {
- fs->is_root = 1;
- fs->content = FS_CONTENT_WINDOWS_ROOT;
- if (check_windows_root (g, fs) == -1)
- return -1;
- }
-
- return 0;
-}
-
-/* The currently mounted device is known to be a Linux root. Try to
- * determine from this the distro, version, etc. Also parse
- * /etc/fstab to determine the arrangement of mountpoints and
- * associated devices.
- */
-static int
-check_linux_root (guestfs_h *g, struct inspect_fs *fs)
-{
- fs->type = OS_TYPE_LINUX;
-
- if (guestfs_exists (g, "/etc/redhat-release") > 0) {
- fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */
-
- char **product_name = guestfs_head_n (g, 1, "/etc/redhat-release");
- if (product_name == NULL)
- return -1;
- if (product_name[0] == NULL) {
- error (g, "/etc/redhat-release file is empty");
- free_string_list (product_name);
- return -1;
- }
-
- /* Note that this string becomes owned by the handle and will
- * be freed by guestfs___free_inspect_info.
- */
- fs->product_name = product_name[0];
- free (product_name);
-
- char *major, *minor;
- if ((major = match1 (g, fs->product_name, re_fedora)) != NULL) {
- fs->distro = OS_DISTRO_FEDORA;
- fs->major_version = parse_unsigned_int (g, major);
- free (major);
- if (fs->major_version == -1)
- return -1;
- }
- else if (match2 (g, fs->product_name, re_rhel_old, &major, &minor) ||
- match2 (g, fs->product_name, re_rhel, &major, &minor)) {
- fs->distro = OS_DISTRO_RHEL;
- fs->major_version = parse_unsigned_int (g, major);
- free (major);
- if (fs->major_version == -1) {
- free (minor);
- return -1;
- }
- fs->minor_version = parse_unsigned_int (g, minor);
- free (minor);
- if (fs->minor_version == -1)
- return -1;
- }
- else if ((major = match1 (g, fs->product_name, re_rhel_no_minor)) != NULL) {
- fs->distro = OS_DISTRO_RHEL;
- fs->major_version = parse_unsigned_int (g, major);
- free (major);
- if (fs->major_version == -1)
- return -1;
- fs->minor_version = 0;
- }
- }
- else if (guestfs_exists (g, "/etc/debian_version") > 0) {
- fs->distro = OS_DISTRO_DEBIAN;
-
- char **product_name = guestfs_head_n (g, 1, "/etc/debian_version");
- if (product_name == NULL)
- return -1;
- if (product_name[0] == NULL) {
- error (g, "/etc/debian_version file is empty");
- free_string_list (product_name);
- return -1;
- }
-
- /* Note that this string becomes owned by the handle and will
- * be freed by guestfs___free_inspect_info.
- */
- fs->product_name = product_name[0];
- free (product_name);
-
- char *major, *minor;
- if (match2 (g, fs->product_name, re_debian, &major, &minor)) {
- fs->major_version = parse_unsigned_int (g, major);
- free (major);
- if (fs->major_version == -1) {
- free (minor);
- return -1;
- }
- fs->minor_version = parse_unsigned_int (g, minor);
- free (minor);
- if (fs->minor_version == -1)
- return -1;
- }
- }
-
- /* Determine the architecture. */
- const char *binaries[] =
- { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" };
- size_t i;
- for (i = 0; i < sizeof binaries / sizeof binaries[0]; ++i) {
- if (guestfs_is_file (g, binaries[i]) > 0) {
- /* Ignore errors from file_architecture call. */
- guestfs_error_handler_cb old_error_cb = g->error_cb;
- g->error_cb = NULL;
- char *arch = guestfs_file_architecture (g, binaries[i]);
- g->error_cb = old_error_cb;
-
- if (arch) {
- /* String will be owned by handle, freed by
- * guestfs___free_inspect_info.
- */
- fs->arch = arch;
- break;
- }
- }
- }
-
- /* We already know /etc/fstab exists because it's part of the test
- * for Linux root above. We must now parse this file to determine
- * which filesystems are used by the operating system and how they
- * are mounted.
- * XXX What if !feature_available (g, "augeas")?
- */
- if (guestfs_aug_init (g, "/", AUG_NO_LOAD|AUG_SAVE_NOOP) == -1)
- return -1;
-
- /* Tell Augeas to only load /etc/fstab (thanks Raphaël Pinson). */
- guestfs_aug_rm (g, "/augeas/load//incl[. != \"/etc/fstab\"]");
- guestfs_aug_load (g);
-
- int r = check_fstab (g, fs);
- guestfs_aug_close (g);
- if (r == -1)
- return -1;
-
- return 0;
-}
-
-static int
-check_fstab (guestfs_h *g, struct inspect_fs *fs)
-{
- char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
- if (lines == NULL)
- return -1;
-
- if (lines[0] == NULL) {
- error (g, "could not parse /etc/fstab or empty file");
- free_string_list (lines);
- return -1;
- }
-
- size_t i;
- char augpath[256];
- for (i = 0; lines[i] != NULL; ++i) {
- /* Ignore comments. Only care about sequence lines which
- * match m{/\d+$}.
- */
- if (match (g, lines[i], re_aug_seq)) {
- snprintf (augpath, sizeof augpath, "%s/spec", lines[i]);
- char *spec = guestfs_aug_get (g, augpath);
- if (spec == NULL) {
- free_string_list (lines);
- return -1;
- }
-
- snprintf (augpath, sizeof augpath, "%s/file", lines[i]);
- char *mp = guestfs_aug_get (g, augpath);
- if (mp == NULL) {
- free_string_list (lines);
- free (spec);
- return -1;
- }
-
- int r = add_fstab_entry (g, fs, spec, mp);
- free (spec);
- free (mp);
-
- if (r == -1) {
- free_string_list (lines);
- return -1;
- }
- }
- }
-
- free_string_list (lines);
- return 0;
-}
-
-/* Add a filesystem and possibly a mountpoint entry for
- * the root filesystem 'fs'.
- *
- * 'spec' is the fstab spec field, which might be a device name or a
- * pseudodevice or 'UUID=...' or 'LABEL=...'.
- *
- * 'mp' is the mount point, which could also be 'swap' or 'none'.
- */
-static int
-add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
- const char *spec, const char *mp)
-{
- /* Ignore certain mountpoints. */
- if (STRPREFIX (mp, "/dev/") ||
- STREQ (mp, "/dev") ||
- STRPREFIX (mp, "/media/") ||
- STRPREFIX (mp, "/proc/") ||
- STREQ (mp, "/proc") ||
- STRPREFIX (mp, "/selinux/") ||
- STREQ (mp, "/selinux") ||
- STRPREFIX (mp, "/sys/") ||
- STREQ (mp, "/sys"))
- return 0;
-
- /* Resolve UUID= and LABEL= to the actual device. */
- char *device = NULL;
- if (STRPREFIX (spec, "UUID="))
- device = guestfs_findfs_uuid (g, &spec[5]);
- else if (STRPREFIX (spec, "LABEL="))
- device = guestfs_findfs_label (g, &spec[6]);
- /* Resolve guest block device names. */
- else if (spec[0] == '/')
- device = resolve_fstab_device (g, spec);
- /* Also ignore pseudo-devices completely, like spec == "tmpfs".
- * If we haven't resolved the device successfully by this point,
- * we don't care, just ignore it.
- */
- if (device == NULL)
- return 0;
-
- char *mountpoint = safe_strdup (g, mp);
-
- /* Add this to the fstab entry in 'fs'.
- * Note these are further filtered by guestfs_inspect_get_mountpoints
- * and guestfs_inspect_get_filesystems.
- */
- size_t n = fs->nr_fstab + 1;
- struct inspect_fstab_entry *p;
-
- p = realloc (fs->fstab, n * sizeof (struct inspect_fstab_entry));
- if (p == NULL) {
- perrorf (g, "realloc");
- free (device);
- free (mountpoint);
- return -1;
- }
-
- fs->fstab = p;
- fs->nr_fstab = n;
-
- /* These are owned by the handle and freed by guestfs___free_inspect_info. */
- fs->fstab[n-1].device = device;
- fs->fstab[n-1].mountpoint = mountpoint;
-
- if (g->verbose)
- fprintf (stderr, "fstab: device=%s mountpoint=%s\n", device, mountpoint);
-
- return 0;