#include <hivex.h>
#include <augeas.h>
+#include "c-ctype.h"
#include "ignore-value.h"
#include "xstrtol.h"
static pcre *re_rhel_old;
static pcre *re_rhel;
static pcre *re_rhel_no_minor;
-static pcre *re_debian;
+static pcre *re_major_minor;
static pcre *re_aug_seq;
static pcre *re_xdev;
static pcre *re_windows_version;
"(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0);
COMPILE (re_rhel_no_minor,
"(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)", 0);
- COMPILE (re_debian, "(\\d+)\\.(\\d+)", 0);
+ COMPILE (re_major_minor, "(\\d+)\\.(\\d+)", 0);
COMPILE (re_aug_seq, "/\\d+$", 0);
COMPILE (re_xdev, "^/dev/(?:h|s|v|xv)d([a-z]\\d*)$", 0);
COMPILE (re_windows_version, "^(\\d+)\\.(\\d+)", 0);
pcre_free (re_rhel_old);
pcre_free (re_rhel);
pcre_free (re_rhel_no_minor);
- pcre_free (re_debian);
+ pcre_free (re_major_minor);
pcre_free (re_aug_seq);
pcre_free (re_xdev);
pcre_free (re_windows_version);
free (g->fses[i].device);
free (g->fses[i].product_name);
free (g->fses[i].arch);
+ free (g->fses[i].windows_systemroot);
size_t j;
for (j = 0; j < g->fses[i].nr_fstab; ++j) {
free (g->fses[i].fstab[j].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 int check_windows_arch (guestfs_h *g, struct inspect_fs *fs);
+static int check_windows_registry (guestfs_h *g, struct inspect_fs *fs);
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);
return 0;
}
+/* Set fs->product_name to the first line of the release file. */
+static int
+parse_release_file (guestfs_h *g, struct inspect_fs *fs,
+ const char *release_filename)
+{
+ char **product_name = guestfs_head_n (g, 1, release_filename);
+ if (product_name == NULL)
+ return -1;
+ if (product_name[0] == NULL) {
+ error (g, "%s: file is empty", release_filename);
+ 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);
+
+ return 0;
+}
+
+/* Parse generic MAJOR.MINOR from the fs->product_name string. */
+static int
+parse_major_minor (guestfs_h *g, struct inspect_fs *fs)
+{
+ char *major, *minor;
+
+ if (match2 (g, fs->product_name, re_major_minor, &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;
+ }
+ return 0;
+}
+
+/* Ubuntu has /etc/lsb-release containing:
+ * DISTRIB_ID=Ubuntu # Distro
+ * DISTRIB_RELEASE=10.04 # Version
+ * DISTRIB_CODENAME=lucid
+ * DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS" # Product name
+ * In theory other distros could have this LSB file, but none do.
+ */
+static int
+parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
+{
+ char **lines;
+ size_t i;
+ int r = 0;
+
+ lines = guestfs_head_n (g, 10, "/etc/lsb-release");
+ if (lines == NULL)
+ return -1;
+
+ for (i = 0; lines[i] != NULL; ++i) {
+ if (fs->distro == 0 &&
+ STREQ (lines[i], "DISTRIB_ID=Ubuntu")) {
+ fs->distro = OS_DISTRO_UBUNTU;
+ r = 1;
+ }
+ else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
+ char *major, *minor;
+ if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) {
+ fs->major_version = parse_unsigned_int (g, major);
+ free (major);
+ if (fs->major_version == -1) {
+ free (minor);
+ free_string_list (lines);
+ return -1;
+ }
+ fs->minor_version = parse_unsigned_int (g, minor);
+ free (minor);
+ if (fs->minor_version == -1) {
+ free_string_list (lines);
+ return -1;
+ }
+ }
+ }
+ else if (fs->product_name == NULL &&
+ (STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=\"") ||
+ STRPREFIX (lines[i], "DISTRIB_DESCRIPTION='"))) {
+ size_t len = strlen (lines[i]) - 21 - 1;
+ fs->product_name = safe_strndup (g, &lines[i][21], len);
+ r = 1;
+ }
+ else if (fs->product_name == NULL &&
+ STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=")) {
+ size_t len = strlen (lines[i]) - 20;
+ fs->product_name = safe_strndup (g, &lines[i][20], len);
+ r = 1;
+ }
+ }
+
+ free_string_list (lines);
+ return r;
+}
+
/* 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
static int
check_linux_root (guestfs_h *g, struct inspect_fs *fs)
{
+ int r;
+
fs->type = OS_TYPE_LINUX;
+ if (guestfs_exists (g, "/etc/lsb-release") > 0) {
+ r = parse_lsb_release (g, fs);
+ if (r == -1) /* error */
+ return -1;
+ if (r == 1) /* ok - detected the release from this file */
+ goto skip_release_checks;
+ }
+
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)
+ if (parse_release_file (g, fs, "/etc/redhat-release") == -1)
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) {
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)
+ if (parse_release_file (g, fs, "/etc/debian_version") == -1)
return -1;
- if (product_name[0] == NULL) {
- error (g, "/etc/debian_version file is empty");
- free_string_list (product_name);
+
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
+ }
+ else if (guestfs_exists (g, "/etc/pardus-release") > 0) {
+ fs->distro = OS_DISTRO_PARDUS;
+
+ if (parse_release_file (g, fs, "/etc/pardus-release") == -1)
return -1;
- }
- /* Note that this string becomes owned by the handle and will
- * be freed by guestfs___free_inspect_info.
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
+ }
+ else if (guestfs_exists (g, "/etc/arch-release") > 0) {
+ fs->distro = OS_DISTRO_ARCHLINUX;
+
+ /* /etc/arch-release file is empty and I can't see a way to
+ * determine the actual release or product string.
*/
- fs->product_name = product_name[0];
- free (product_name);
+ }
+ else if (guestfs_exists (g, "/etc/gentoo-release") > 0) {
+ fs->distro = OS_DISTRO_GENTOO;
- 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;
- }
+ if (parse_release_file (g, fs, "/etc/gentoo-release") == -1)
+ return -1;
+
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
}
+ else if (guestfs_exists (g, "/etc/meego-release") > 0) {
+ fs->distro = OS_DISTRO_MEEGO;
+
+ if (parse_release_file (g, fs, "/etc/meego-release") == -1)
+ return -1;
+
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
+ }
+
+ skip_release_checks:;
/* Determine the architecture. */
const char *binaries[] =
guestfs_aug_rm (g, "/augeas/load//incl[. != \"/etc/fstab\"]");
guestfs_aug_load (g);
- int r = check_fstab (g, fs);
+ r = check_fstab (g, fs);
guestfs_aug_close (g);
if (r == -1)
return -1;
STREQ (mp, "/sys"))
return 0;
+ /* Ignore /dev/fd (floppy disks) (RHBZ#642929) and CD-ROM drives. */
+ if ((STRPREFIX (spec, "/dev/fd") && c_isdigit (spec[7])) ||
+ STREQ (spec, "/dev/floppy") ||
+ STREQ (spec, "/dev/cdrom"))
+ 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] == '/')
+ /* Ignore "/.swap" (Pardus) and pseudo-devices like "tmpfs". */
+ else if (STRPREFIX (spec, "/dev/"))
+ /* Resolve guest block device names. */
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,
+
+ /* If we haven't resolved the device successfully by this point,
* we don't care, just ignore it.
*/
if (device == NULL)
}
/* Resolve block device name to the libguestfs device name, eg.
- * /dev/xvdb1 => /dev/vdb1. This assumes that disks were added in the
- * same order as they appear to the real VM, which is a reasonable
- * assumption to make. Return things like LV names unchanged (or
- * anything we don't recognize).
+ * /dev/xvdb1 => /dev/vdb1; and /dev/mapper/VG-LV => /dev/VG/LV. This
+ * assumes that disks were added in the same order as they appear to
+ * the real VM, which is a reasonable assumption to make. Return
+ * anything we don't recognize unchanged.
*/
static char *
resolve_fstab_device (guestfs_h *g, const char *spec)
{
- char **devices = guestfs_list_devices (g);
- if (devices == NULL)
- return NULL;
+ char *a1;
+ char *device = NULL;
- size_t count;
- for (count = 0; devices[count] != NULL; count++)
- ;
+ if (STRPREFIX (spec, "/dev/mapper/")) {
+ /* LVM2 does some strange munging on /dev/mapper paths for VGs and
+ * LVs which contain '-' character:
+ *
+ * ><fs> lvcreate LV--test VG--test 32
+ * ><fs> debug ls /dev/mapper
+ * VG----test-LV----test
+ *
+ * This makes it impossible to reverse those paths directly, so
+ * we have implemented lvm_canonical_lv_name in the daemon.
+ */
+ device = guestfs_lvm_canonical_lv_name (g, spec);
+ }
+ else if ((a1 = match1 (g, spec, re_xdev)) != NULL) {
+ char **devices = guestfs_list_devices (g);
+ if (devices == NULL)
+ return NULL;
+
+ size_t count;
+ for (count = 0; devices[count] != NULL; count++)
+ ;
- char *device = NULL;
- char *a1 = match1 (g, spec, re_xdev);
- if (a1) {
size_t i = a1[0] - 'a'; /* a1[0] is always [a-z] because of regex. */
if (i < count) {
size_t len = strlen (devices[i]) + strlen (a1) + 16;
device = safe_malloc (g, len);
snprintf (device, len, "%s%s", devices[i], &a1[1]);
}
- } else {
+
+ free (a1);
+ free_string_list (devices);
+ }
+ else {
/* Didn't match device pattern, return original spec unchanged. */
device = safe_strdup (g, spec);
}
- free (a1);
- free_string_list (devices);
-
return device;
}
return -1;
}
- /* XXX There is a case for exposing systemroot and many variables
- * from the registry through the libguestfs API.
- */
-
if (g->verbose)
fprintf (stderr, "windows %%SYSTEMROOT%% = %s", systemroot);
- if (check_windows_arch (g, fs, systemroot) == -1) {
- free (systemroot);
+ /* Freed by guestfs___free_inspect_info. */
+ fs->windows_systemroot = systemroot;
+
+ if (check_windows_arch (g, fs) == -1)
return -1;
- }
- if (check_windows_registry (g, fs, systemroot) == -1) {
- free (systemroot);
+ if (check_windows_registry (g, fs) == -1)
return -1;
- }
- free (systemroot);
return 0;
}
static int
-check_windows_arch (guestfs_h *g, struct inspect_fs *fs,
- const char *systemroot)
+check_windows_arch (guestfs_h *g, struct inspect_fs *fs)
{
- size_t len = strlen (systemroot) + 32;
+ size_t len = strlen (fs->windows_systemroot) + 32;
char cmd_exe[len];
- snprintf (cmd_exe, len, "%s/system32/cmd.exe", systemroot);
+ snprintf (cmd_exe, len, "%s/system32/cmd.exe", fs->windows_systemroot);
char *cmd_exe_path = resolve_windows_path_silently (g, cmd_exe);
if (!cmd_exe_path)
* registry fields available to callers.
*/
static int
-check_windows_registry (guestfs_h *g, struct inspect_fs *fs,
- const char *systemroot)
+check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
{
TMP_TEMPLATE_ON_STACK (dir);
#define dir_len (strlen (dir))
#define cmd_len (dir_len + 16)
char cmd[cmd_len];
- size_t len = strlen (systemroot) + 64;
+ size_t len = strlen (fs->windows_systemroot) + 64;
char software[len];
- snprintf (software, len, "%s/system32/config/software", systemroot);
+ snprintf (software, len, "%s/system32/config/software",
+ fs->windows_systemroot);
char *software_path = resolve_windows_path_silently (g, software);
if (!software_path)
char *ret;
switch (fs->distro) {
+ case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break;
case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
+ case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
+ case OS_DISTRO_MEEGO: ret = safe_strdup (g, "meego"); break;
+ case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); break;
case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break;
+ case OS_DISTRO_UBUNTU: ret = safe_strdup (g, "ubuntu"); break;
case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
}
return safe_strdup (g, fs->product_name ? : "unknown");
}
+char *
+guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ if (!fs->windows_systemroot) {
+ error (g, _("not a Windows guest, or systemroot could not be determined"));
+ return NULL;
+ }
+
+ return safe_strdup (g, fs->windows_systemroot);
+}
+
char **
guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
{
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