static pcre *re_major_minor;
static pcre *re_aug_seq;
static pcre *re_xdev;
+static pcre *re_first_partition;
+static pcre *re_freebsd;
static pcre *re_windows_version;
static void compile_regexps (void) __attribute__((constructor));
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_first_partition, "^/dev/(?:h|s|v)d.1$", 0);
+ COMPILE (re_freebsd, "^/dev/ad(\\d+)s(\\d+)([a-z])$", 0);
COMPILE (re_windows_version, "^(\\d+)\\.(\\d+)", 0);
}
pcre_free (re_major_minor);
pcre_free (re_aug_seq);
pcre_free (re_xdev);
+ pcre_free (re_first_partition);
+ pcre_free (re_freebsd);
pcre_free (re_windows_version);
}
*/
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_freebsd_root (guestfs_h *g, struct inspect_fs *fs);
+static void check_architecture (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);
static char *resolve_fstab_device (guestfs_h *g, const char *spec);
static void check_package_format (guestfs_h *g, struct inspect_fs *fs);
static void check_package_management (guestfs_h *g, struct inspect_fs *fs);
+static int download_to_tmp (guestfs_h *g, const char *filename, char *localtmp, int64_t max_size);
static int
check_for_filesystem_on (guestfs_h *g, const char *device)
fs->device = safe_strdup (g, device);
fs->is_mountable = 1;
+ /* Optimize some of the tests by avoiding multiple tests of the same thing. */
+ int is_dir_etc = guestfs_is_dir (g, "/etc") > 0;
+ int is_dir_bin = guestfs_is_dir (g, "/bin") > 0;
+ int is_dir_share = guestfs_is_dir (g, "/share") > 0;
+
/* 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;
+ /* FreeBSD root? */
+ else if (is_dir_etc &&
+ is_dir_bin &&
+ guestfs_is_file (g, "/etc/freebsd-update.conf") > 0 &&
+ guestfs_is_file (g, "/etc/fstab") > 0) {
+ /* Ignore /dev/sda1 which is a shadow of the real root filesystem
+ * that is probably /dev/sda5 (see:
+ * http://www.freebsd.org/doc/handbook/disk-organization.html)
+ */
+ if (match (g, device, re_first_partition))
+ return 0;
+
+ fs->is_root = 1;
+ fs->content = FS_CONTENT_FREEBSD_ROOT;
+ if (check_freebsd_root (g, fs) == -1)
+ return -1;
+ }
/* Linux root? */
- else if (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
+ else if (is_dir_etc &&
+ is_dir_bin &&
guestfs_is_file (g, "/etc/fstab") > 0) {
fs->is_root = 1;
fs->content = FS_CONTENT_LINUX_ROOT;
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 &&
+ else if (is_dir_etc &&
+ is_dir_bin &&
+ is_dir_share &&
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 &&
+ else if (is_dir_etc &&
+ is_dir_bin &&
+ is_dir_share &&
guestfs_exists (g, "/local") > 0 &&
guestfs_is_file (g, "/etc/fstab") == 0)
fs->content = FS_CONTENT_LINUX_USR;
if (product_name == NULL)
return -1;
if (product_name[0] == NULL) {
- error (g, "%s: file is empty", release_filename);
+ error (g, _("%s: file is empty"), release_filename);
guestfs___free_string_list (product_name);
return -1;
}
* 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.
+ *
+ * [Ubuntu-derived ...] Linux Mint was found to have this:
+ * DISTRIB_ID=LinuxMint
+ * DISTRIB_RELEASE=10
+ * DISTRIB_CODENAME=julia
+ * DISTRIB_DESCRIPTION="Linux Mint 10 Julia"
+ * Linux Mint also has /etc/linuxmint/info with more information,
+ * but we can use the LSB file.
+ *
+ * Mandriva has:
+ * LSB_VERSION=lsb-4.0-amd64:lsb-4.0-noarch
+ * DISTRIB_ID=MandrivaLinux
+ * DISTRIB_RELEASE=2010.1
+ * DISTRIB_CODENAME=Henry_Farman
+ * DISTRIB_DESCRIPTION="Mandriva Linux 2010.1"
+ * Mandriva also has a normal release file called /etc/mandriva-release.
*/
static int
parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
fs->distro = OS_DISTRO_UBUNTU;
r = 1;
}
+ else if (fs->distro == 0 &&
+ STREQ (lines[i], "DISTRIB_ID=LinuxMint")) {
+ fs->distro = OS_DISTRO_LINUX_MINT;
+ r = 1;
+ }
+ else if (fs->distro == 0 &&
+ STREQ (lines[i], "DISTRIB_ID=MandrivaLinux")) {
+ fs->distro = OS_DISTRO_MANDRIVA;
+ r = 1;
+ }
else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
char *major, *minor;
if (match2 (g, &lines[i][16], re_major_minor, &major, &minor)) {
check_package_management (g, fs);
/* Determine the architecture. */
+ check_architecture (g, fs);
+
+ /* 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.
+ */
+ if (check_fstab (g, fs) == -1)
+ return -1;
+
+ return 0;
+}
+
+/* The currently mounted device is known to be a FreeBSD root. */
+static int
+check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
+{
+ int r;
+
+ fs->type = OS_TYPE_FREEBSD;
+
+ /* FreeBSD has no authoritative version file. The version number is
+ * in /etc/motd, which the system administrator might edit, but
+ * we'll use that anyway.
+ */
+
+ if (guestfs_exists (g, "/etc/motd") > 0) {
+ if (parse_release_file (g, fs, "/etc/motd") == -1)
+ return -1;
+
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
+ }
+
+ /* Determine the architecture. */
+ check_architecture (g, fs);
+
+ /* We already know /etc/fstab exists because it's part of the test above. */
+ if (check_fstab (g, fs) == -1)
+ return -1;
+
+ return 0;
+}
+
+static void
+check_architecture (guestfs_h *g, struct inspect_fs *fs)
+{
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. */
}
}
}
+}
- /* 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")?
- */
+static int check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs);
+
+static int
+check_fstab (guestfs_h *g, struct inspect_fs *fs)
+{
+ int r;
+ int64_t size;
+
+ /* Security: Refuse to do this if /etc/fstab is huge. */
+ size = guestfs_filesize (g, "/etc/fstab");
+ if (size == -1 || size > 100000) {
+ error (g, _("size of /etc/fstab unreasonable (%" PRIi64 " bytes)"), size);
+ return -1;
+ }
+
+ /* XXX What if !feature_available (g, "augeas")? */
if (guestfs_aug_init (g, "/", 16|32) == -1)
return -1;
guestfs_aug_rm (g, "/augeas/load//incl[. != \"/etc/fstab\"]");
guestfs_aug_load (g);
- r = check_fstab (g, fs);
+ r = check_fstab_aug_open (g, fs);
guestfs_aug_close (g);
if (r == -1)
return -1;
}
static int
-check_fstab (guestfs_h *g, struct inspect_fs *fs)
+check_fstab_aug_open (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");
+ error (g, _("could not parse /etc/fstab or empty file"));
guestfs___free_string_list (lines);
return -1;
}
{
char *a1;
char *device = NULL;
+ char *bsddisk, *bsdslice, *bsdpart;
if (STRPREFIX (spec, "/dev/mapper/")) {
/* LVM2 does some strange munging on /dev/mapper paths for VGs and
free (a1);
guestfs___free_string_list (devices);
}
- else {
- /* Didn't match device pattern, return original spec unchanged. */
- device = safe_strdup (g, spec);
+ else if (match3 (g, spec, re_freebsd, &bsddisk, &bsdslice, &bsdpart)) {
+ /* FreeBSD disks are organized quite differently. See:
+ * http://www.freebsd.org/doc/handbook/disk-organization.html
+ * FreeBSD "partitions" are exposed as quasi-extended partitions
+ * numbered from 5 in Linux. I have no idea what happens when you
+ * have multiple "slices" (the FreeBSD term for MBR partitions).
+ */
+ int disk = parse_unsigned_int (g, bsddisk);
+ int slice = parse_unsigned_int (g, bsdslice);
+ int part = bsdpart[0] - 'a' /* counting from 0 */;
+ free (bsddisk);
+ free (bsdslice);
+ free (bsdpart);
+
+ if (disk == -1 || disk > 26 ||
+ slice <= 0 || slice > 1 /* > 4 .. see comment above */ ||
+ part < 0 || part >= 26)
+ goto out;
+
+ device = safe_asprintf (g, "/dev/sd%c%d", disk + 'a', part + 5);
}
+ out:
+ /* Didn't match device pattern, return original spec unchanged. */
+ if (device == NULL)
+ device = safe_strdup (g, spec);
+
return device;
}
static int
check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
{
- TMP_TEMPLATE_ON_STACK (dir);
-#define dir_len (strlen (dir))
-#define software_hive_len (dir_len + 16)
- char software_hive[software_hive_len];
-#define cmd_len (dir_len + 16)
- char cmd[cmd_len];
+ TMP_TEMPLATE_ON_STACK (software_local);
size_t len = strlen (fs->windows_systemroot) + 64;
char software[len];
hive_h *h = NULL;
hive_value_h *values = NULL;
- if (mkdtemp (dir) == NULL) {
- perrorf (g, "mkdtemp");
- goto out;
- }
-
- snprintf (software_hive, software_hive_len, "%s/software", dir);
-
- if (guestfs_download (g, software_path, software_hive) == -1)
+ if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
goto out;
- h = hivex_open (software_hive, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
+ h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
if (h == NULL) {
perrorf (g, "hivex_open");
goto out;
if (fs->minor_version == -1) {
free (key);
free (version);
- return -1;
+ goto out;
}
}
free (values);
free (software_path);
- /* Free up the temporary directory. Note the directory name cannot
- * contain shell meta-characters because of the way it was
- * constructed above.
- */
- snprintf (cmd, cmd_len, "rm -rf %s", dir);
- ignore_value (system (cmd));
-#undef dir_len
-#undef software_hive_len
-#undef cmd_len
+ /* Free up the temporary file. */
+ unlink (software_local);
+#undef software_local_len
return ret;
}
long ret;
int r = xstrtol (str, NULL, 10, &ret, "");
if (r != LONGINT_OK) {
- error (g, "could not parse integer in version number: %s", str);
+ error (g, _("could not parse integer in version number: %s"), str);
return -1;
}
return ret;
case OS_DISTRO_MEEGO:
case OS_DISTRO_REDHAT_BASED:
case OS_DISTRO_RHEL:
+ case OS_DISTRO_MANDRIVA:
fs->package_format = OS_PACKAGE_FORMAT_RPM;
break;
case OS_DISTRO_DEBIAN:
case OS_DISTRO_UBUNTU:
+ case OS_DISTRO_LINUX_MINT:
fs->package_format = OS_PACKAGE_FORMAT_DEB;
break;
case OS_DISTRO_DEBIAN:
case OS_DISTRO_UBUNTU:
+ case OS_DISTRO_LINUX_MINT:
fs->package_management = OS_PACKAGE_MANAGEMENT_APT;
break;
case OS_DISTRO_PARDUS:
fs->package_management = OS_PACKAGE_MANAGEMENT_PISI;
break;
+ case OS_DISTRO_MANDRIVA:
+ fs->package_management = OS_PACKAGE_MANAGEMENT_URPMI;
+ break;
case OS_DISTRO_WINDOWS:
case OS_DISTRO_UNKNOWN:
switch (fs->type) {
case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
case OS_TYPE_WINDOWS: ret = safe_strdup (g, "windows"); break;
+ case OS_TYPE_FREEBSD: ret = safe_strdup (g, "freebsd"); break;
case OS_TYPE_UNKNOWN: default: ret = safe_strdup (g, "unknown"); 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_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
+ case OS_DISTRO_MANDRIVA: ret = safe_strdup (g, "mandriva"); 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_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
+ case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break;
case OS_PACKAGE_MANAGEMENT_UNKNOWN:
default:
ret = safe_strdup (g, "unknown");
return ret;
}
+/* Download to a guest file to a local temporary file. Refuse to
+ * download the guest file if it is larger than max_size. The caller
+ * is responsible for deleting the temporary file after use.
+ */
+static int
+download_to_tmp (guestfs_h *g, const char *filename,
+ char *localtmp, int64_t max_size)
+{
+ int fd;
+ char buf[32];
+ int64_t size;
+
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > max_size) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return -1;
+ }
+
+ fd = mkstemp (localtmp);
+ if (fd == -1) {
+ perrorf (g, "mkstemp");
+ return -1;
+ }
+
+ snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
+
+ if (guestfs_download (g, filename, buf) == -1) {
+ close (fd);
+ unlink (localtmp);
+ return -1;
+ }
+
+ if (close (fd) == -1) {
+ perrorf (g, "close: %s", localtmp);
+ unlink (localtmp);
+ return -1;
+ }
+
+ return 0;
+}
+
#else /* no PCRE or hivex at compile time */
/* XXX These functions should be in an optgroup. */
return 1;
}
+/* Match a regular expression which contains exactly three captures. */
+int
+guestfs___match3 (guestfs_h *g, const char *str, const pcre *re,
+ char **ret1, char **ret2, char **ret3)
+{
+ size_t len = strlen (str);
+ int vec[30], r;
+
+ r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
+ if (r == PCRE_ERROR_NOMATCH)
+ return 0;
+ if (r != 4) {
+ /* Internal error -- should not happen. */
+ fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
+ __FILE__, __func__, r, str);
+ return 0;
+ }
+
+ *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
+ *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
+ *ret3 = safe_strndup (g, &str[vec[6]], vec[7]-vec[6]);
+
+ return 1;
+}
+
#endif /* HAVE_PCRE */
git.annexia.org / libguestfs.git / blobdiff