#if defined(HAVE_PCRE) && defined(HAVE_HIVEX)
+/* Some limits on what we will read, for safety. */
+
+/* Small text configuration files.
+ *
+ * The upper limit is for general files that we grep or download. The
+ * largest such file is probably "txtsetup.sif" from Windows CDs
+ * (~500K). This number has to be larger than any legitimate file and
+ * smaller than the protocol message size.
+ *
+ * The lower limit is for files parsed by Augeas on the daemon side,
+ * where Augeas is running in reduced memory and can potentially
+ * create a lot of metadata so we really need to be careful about
+ * those.
+ */
+#define MAX_SMALL_FILE_SIZE (2 * 1000 * 1000)
+#define MAX_AUGEAS_FILE_SIZE (100 * 1000)
+
+/* Maximum Windows Registry hive that we will download to /tmp. Some
+ * registries can be legitimately very large.
+ */
+#define MAX_REGISTRY_SIZE (100 * 1000 * 1000)
+
+/* Maximum RPM or dpkg database we will download to /tmp. */
+#define MAX_PKG_DB_SIZE (10 * 1000 * 1000)
+
/* Compile all the regular expressions once when the shared library is
* loaded. PCRE is thread safe so we're supposedly OK here if
* multiple threads call into the libguestfs API functions below
COMPILE (re_fedora, "Fedora release (\\d+)", 0);
COMPILE (re_rhel_old,
- "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+).*Update (\\d+)", 0);
+ "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+).*Update (\\d+)", 0);
COMPILE (re_rhel,
- "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0);
+ "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0);
COMPILE (re_rhel_no_minor,
- "(?:Red Hat Enterprise Linux|CentOS|Scientific Linux).*release (\\d+)", 0);
+ "(?:Red Hat|CentOS|Scientific Linux).*release (\\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);
}
/* The main inspection code. */
-static int check_for_filesystem_on (guestfs_h *g, const char *device);
+static int check_for_filesystem_on (guestfs_h *g, const char *device, int is_block, int is_partnum);
char **
guestfs__inspect_os (guestfs_h *g)
size_t i;
for (i = 0; devices[i] != NULL; ++i) {
- if (check_for_filesystem_on (g, devices[i]) == -1) {
+ if (check_for_filesystem_on (g, devices[i], 1, 0) == -1) {
guestfs___free_string_list (devices);
guestfs___free_inspect_info (g);
return NULL;
}
for (i = 0; partitions[i] != NULL; ++i) {
- if (check_for_filesystem_on (g, partitions[i]) == -1) {
+ if (check_for_filesystem_on (g, partitions[i], 0, i+1) == -1) {
guestfs___free_string_list (partitions);
guestfs___free_inspect_info (g);
return NULL;
}
for (i = 0; lvs[i] != NULL; ++i) {
- if (check_for_filesystem_on (g, lvs[i]) == -1) {
+ if (check_for_filesystem_on (g, lvs[i], 0, 0) == -1) {
guestfs___free_string_list (lvs);
guestfs___free_inspect_info (g);
return NULL;
/* 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_filesystem (guestfs_h *g, const char *device, int is_block, int is_partnum);
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 int check_installer_root (guestfs_h *g, struct inspect_fs *fs);
static void check_architecture (guestfs_h *g, struct inspect_fs *fs);
+static int check_hostname_unix (guestfs_h *g, struct inspect_fs *fs);
+static int check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs);
+static int check_hostname_freebsd (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 int check_windows_registry (guestfs_h *g, struct inspect_fs *fs);
+static int check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs);
+static int check_windows_system_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);
+static int parse_unsigned_int_ignore_trailing (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 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 inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, int (*f) (guestfs_h *, struct inspect_fs *));
+static char *first_line_of_file (guestfs_h *g, const char *filename);
+static int first_egrep_of_file (guestfs_h *g, const char *filename, const char *eregex, int iflag, char **ret);
static int
-check_for_filesystem_on (guestfs_h *g, const char *device)
+check_for_filesystem_on (guestfs_h *g, const char *device,
+ int is_block, int is_partnum)
{
/* 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
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");
+ debug (g, "check_for_filesystem_on: %s %d %d (%s)",
+ device, is_block, is_partnum,
+ vfs_type ? vfs_type : "failed to get vfs type");
if (is_swap) {
free (vfs_type);
return 0;
/* Do the rest of the checks. */
- r = check_filesystem (g, device);
+ r = check_filesystem (g, device, is_block, is_partnum);
/* Unmount the filesystem. */
if (guestfs_umount_all (g) == -1)
return r;
}
+/* is_block and is_partnum are just hints: is_block is true if the
+ * filesystem is a whole block device (eg. /dev/sda). is_partnum
+ * is > 0 if the filesystem is a direct partition, and in this case
+ * it is the partition number counting from 1
+ * (eg. /dev/sda1 => is_partnum == 1).
+ */
static int
-check_filesystem (guestfs_h *g, const char *device)
+check_filesystem (guestfs_h *g, const char *device,
+ int is_block, int is_partnum)
{
if (extend_fses (g) == -1)
return -1;
fs->is_root = 1;
fs->content = FS_CONTENT_FREEBSD_ROOT;
+ fs->format = OS_FORMAT_INSTALLED;
if (check_freebsd_root (g, fs) == -1)
return -1;
}
guestfs_is_file (g, "/etc/fstab") > 0) {
fs->is_root = 1;
fs->content = FS_CONTENT_LINUX_ROOT;
+ fs->format = OS_FORMAT_INSTALLED;
if (check_linux_root (g, fs) == -1)
return -1;
}
guestfs_is_file (g, "/ntldr") > 0) {
fs->is_root = 1;
fs->content = FS_CONTENT_WINDOWS_ROOT;
+ fs->format = OS_FORMAT_INSTALLED;
if (check_windows_root (g, fs) == -1)
return -1;
}
+ /* Install CD/disk? Skip these checks if it's not a whole device
+ * (eg. CD) or the first partition (eg. bootable USB key).
+ */
+ else if ((is_block || is_partnum == 1) &&
+ (guestfs_is_file (g, "/isolinux/isolinux.cfg") > 0 ||
+ guestfs_is_dir (g, "/EFI/BOOT") > 0 ||
+ guestfs_is_file (g, "/images/install.img") > 0 ||
+ guestfs_is_dir (g, "/.disk") > 0 ||
+ guestfs_is_file (g, "/.discinfo") > 0 ||
+ guestfs_is_file (g, "/i386/txtsetup.sif") > 0 ||
+ guestfs_is_file (g, "/amd64/txtsetup.sif")) > 0) {
+ fs->is_root = 1;
+ fs->content = FS_CONTENT_INSTALLER;
+ fs->format = OS_FORMAT_INSTALLER;
+ if (check_installer_root (g, fs) == -1)
+ return -1;
+ }
return 0;
}
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);
- guestfs___free_string_list (product_name);
+ fs->product_name = first_line_of_file (g, release_filename);
+ if (fs->product_name == NULL)
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;
}
static int
parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
{
+ const char *filename = "/etc/lsb-release";
+ int64_t size;
char **lines;
size_t i;
int r = 0;
- lines = guestfs_head_n (g, 10, "/etc/lsb-release");
+ /* Don't trust guestfs_head_n not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > MAX_SMALL_FILE_SIZE) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return -1;
+ }
+
+ lines = guestfs_head_n (g, 10, filename);
if (lines == NULL)
return -1;
* which filesystems are used by the operating system and how they
* are mounted.
*/
- if (check_fstab (g, fs) == -1)
+ if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
+ return -1;
+
+ /* Determine hostname. */
+ if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
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
check_architecture (g, fs);
/* We already know /etc/fstab exists because it's part of the test above. */
- if (check_fstab (g, fs) == -1)
+ if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
+ return -1;
+
+ /* Determine hostname. */
+ if (check_hostname_unix (g, fs) == -1)
+ return -1;
+
+ return 0;
+}
+
+/* Debian/Ubuntu install disks are easy ...
+ *
+ * These files are added by the debian-cd program, and it is worth
+ * looking at the source code to determine exact values, in
+ * particular '/usr/share/debian-cd/tools/start_new_disc'
+ *
+ * XXX Architecture? We could parse it out of the product name
+ * string, but that seems quite hairy. We could look for the names
+ * of packages. Also note that some Debian install disks are
+ * multiarch.
+ */
+static int
+check_debian_installer_root (guestfs_h *g, struct inspect_fs *fs)
+{
+ fs->product_name = first_line_of_file (g, "/.disk/info");
+ if (!fs->product_name)
+ return -1;
+
+ fs->type = OS_TYPE_LINUX;
+ if (STRPREFIX (fs->product_name, "Ubuntu"))
+ fs->distro = OS_DISTRO_UBUNTU;
+ else if (STRPREFIX (fs->product_name, "Debian"))
+ fs->distro = OS_DISTRO_DEBIAN;
+
+ (void) parse_major_minor (g, fs);
+
+ if (guestfs_is_file (g, "/.disk/cd_type") > 0) {
+ char *cd_type = first_line_of_file (g, "/.disk/cd_type");
+ if (!cd_type)
+ return -1;
+
+ if (STRPREFIX (cd_type, "dvd/single") ||
+ STRPREFIX (cd_type, "full_cd/single")) {
+ fs->is_multipart_disk = 0;
+ fs->is_netinst_disk = 0;
+ }
+ else if (STRPREFIX (cd_type, "dvd") ||
+ STRPREFIX (cd_type, "full_cd")) {
+ fs->is_multipart_disk = 1;
+ fs->is_netinst_disk = 0;
+ }
+ else if (STRPREFIX (cd_type, "not_complete")) {
+ fs->is_multipart_disk = 0;
+ fs->is_netinst_disk = 1;
+ }
+
+ free (cd_type);
+ }
+
+ return 0;
+}
+
+/* Take string which must look like "key = value" and find the value.
+ * There may or may not be spaces before and after the equals sign.
+ * This function is used by both check_fedora_installer_root and
+ * check_w2k3_installer_root.
+ */
+static const char *
+find_value (const char *kv)
+{
+ const char *p;
+
+ p = strchr (kv, '=');
+ if (!p)
+ abort ();
+
+ do {
+ ++p;
+ } while (c_isspace (*p));
+
+ return p;
+}
+
+/* Fedora CDs and DVD (not netinst). The /.treeinfo file contains
+ * an initial section somewhat like this:
+ *
+ * [general]
+ * version = 14
+ * arch = x86_64
+ * family = Fedora
+ * variant = Fedora
+ * discnum = 1
+ * totaldiscs = 1
+ */
+static int
+check_fedora_installer_root (guestfs_h *g, struct inspect_fs *fs)
+{
+ char *str;
+ const char *v;
+ int r;
+ int discnum = 0, totaldiscs = 0;
+
+ fs->type = OS_TYPE_LINUX;
+
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^family = Fedora$", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ fs->distro = OS_DISTRO_FEDORA;
+ free (str);
+ }
+
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^family = Red Hat Enterprise Linux$", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ fs->distro = OS_DISTRO_RHEL;
+ free (str);
+ }
+
+ /* XXX should do major.minor before this */
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^version = [[:digit:]]+", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ v = find_value (str);
+ fs->major_version = parse_unsigned_int_ignore_trailing (g, v);
+ free (str);
+ if (fs->major_version == -1)
+ return -1;
+ }
+
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^arch = [-_[:alnum:]]+$", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ v = find_value (str);
+ fs->arch = safe_strdup (g, v);
+ free (str);
+ }
+
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^discnum = [[:digit:]]+$", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ v = find_value (str);
+ discnum = parse_unsigned_int (g, v);
+ free (str);
+ if (discnum == -1)
+ return -1;
+ }
+
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^totaldiscs = [[:digit:]]+$", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ v = find_value (str);
+ totaldiscs = parse_unsigned_int (g, v);
+ free (str);
+ if (totaldiscs == -1)
+ return -1;
+ }
+
+ fs->is_multipart_disk = totaldiscs > 0;
+ /* and what about discnum? */
+
+ return 0;
+}
+
+/* Linux with /isolinux/isolinux.cfg.
+ *
+ * This file is not easily parsable so we have to do our best.
+ * Look for the "menu title" line which contains:
+ * menu title Welcome to Fedora 14! # since at least Fedora 10
+ * menu title Welcome to Red Hat Enterprise Linux 6.0!
+ */
+static int
+check_isolinux_installer_root (guestfs_h *g, struct inspect_fs *fs)
+{
+ char *str;
+ int r;
+
+ fs->type = OS_TYPE_LINUX;
+
+ r = first_egrep_of_file (g, "/isolinux/isolinux.cfg",
+ "^menu title Welcome to Fedora [[:digit:]]+",
+ 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ fs->distro = OS_DISTRO_FEDORA;
+ fs->major_version = parse_unsigned_int_ignore_trailing (g, &str[29]);
+ free (str);
+ if (fs->major_version == -1)
+ return -1;
+ }
+
+ /* XXX parse major.minor */
+ r = first_egrep_of_file (g, "/isolinux/isolinux.cfg",
+ "^menu title Welcome to Red Hat Enterprise Linux [[:digit:]]+",
+ 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ fs->distro = OS_DISTRO_RHEL;
+ fs->major_version = parse_unsigned_int_ignore_trailing (g, &str[47]);
+ free (str);
+ if (fs->major_version == -1)
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Windows 2003 and similar versions.
+ *
+ * NB: txtsetup file contains Windows \r\n line endings, which guestfs_grep
+ * does not remove. We have to remove them by hand here.
+ */
+static void
+trim_cr (char *str)
+{
+ size_t n = strlen (str);
+ if (n > 0 && str[n-1] == '\r')
+ str[n-1] = '\0';
+}
+
+static void
+trim_quot (char *str)
+{
+ size_t n = strlen (str);
+ if (n > 0 && str[n-1] == '"')
+ str[n-1] = '\0';
+}
+
+static int
+check_w2k3_installer_root (guestfs_h *g, struct inspect_fs *fs,
+ const char *txtsetup)
+{
+ char *str;
+ const char *v;
+ int r;
+
+ fs->type = OS_TYPE_WINDOWS;
+ fs->distro = OS_DISTRO_WINDOWS;
+
+ r = first_egrep_of_file (g, txtsetup,
+ "^productname[[:space:]]*=[[:space:]]*\"", 1, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ trim_cr (str);
+ trim_quot (str);
+ v = find_value (str);
+ fs->product_name = safe_strdup (g, v+1);
+ free (str);
+ }
+
+ r = first_egrep_of_file (g, txtsetup,
+ "^majorversion[[:space:]]*=[[:space:]]*[[:digit:]]+",
+ 1, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ trim_cr (str);
+ v = find_value (str);
+ fs->major_version = parse_unsigned_int_ignore_trailing (g, v);
+ free (str);
+ if (fs->major_version == -1)
+ return -1;
+ }
+
+ r = first_egrep_of_file (g, txtsetup,
+ "^minorversion[[:space:]]*=[[:space:]]*[[:digit:]]+",
+ 1, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ trim_cr (str);
+ v = find_value (str);
+ fs->minor_version = parse_unsigned_int_ignore_trailing (g, v);
+ free (str);
+ if (fs->minor_version == -1)
+ return -1;
+ }
+
+ /* This is the windows systemroot that would be chosen on
+ * installation by default, although not necessarily the one that
+ * the user will finally choose.
+ */
+ r = first_egrep_of_file (g, txtsetup, "^defaultpath[[:space:]]*=[[:space:]]*",
+ 1, &str);
+ if (r == -1)
return -1;
+ if (r > 0) {
+ trim_cr (str);
+ v = find_value (str);
+ fs->windows_systemroot = safe_strdup (g, v);
+ free (str);
+ }
+
+ return 0;
+}
+
+/* The currently mounted device is very likely to be an installer. */
+static int
+check_installer_root (guestfs_h *g, struct inspect_fs *fs)
+{
+ /* The presence of certain files indicates a live CD.
+ *
+ * XXX Fedora netinst contains a ~120MB squashfs called
+ * /images/install.img. However this is not a live CD (unlike the
+ * Fedora live CDs which contain the same, but larger file). We
+ * need to unpack this and look inside to tell the difference.
+ */
+ if (guestfs_is_file (g, "/casper/filesystem.squashfs") > 0)
+ fs->is_live_disk = 1;
+
+ /* Debian/Ubuntu. */
+ if (guestfs_is_file (g, "/.disk/info") > 0) {
+ if (check_debian_installer_root (g, fs) == -1)
+ return -1;
+ }
+
+ /* Fedora CDs and DVD (not netinst). */
+ else if (guestfs_is_file (g, "/.treeinfo") > 0) {
+ if (check_fedora_installer_root (g, fs) == -1)
+ return -1;
+ }
+
+ /* Linux with /isolinux/isolinux.cfg. */
+ else if (guestfs_is_file (g, "/isolinux/isolinux.cfg") > 0) {
+ if (check_isolinux_installer_root (g, fs) == -1)
+ return -1;
+ }
+
+ /* Windows 2003 64 bit */
+ else if (guestfs_is_file (g, "/amd64/txtsetup.sif") > 0) {
+ fs->arch = safe_strdup (g, "x86_64");
+ if (check_w2k3_installer_root (g, fs, "/amd64/txtsetup.sif") == -1)
+ return -1;
+ }
+
+ /* Windows 2003 32 bit */
+ else if (guestfs_is_file (g, "/i386/txtsetup.sif") > 0) {
+ fs->arch = safe_strdup (g, "i386");
+ if (check_w2k3_installer_root (g, fs, "/i386/txtsetup.sif") == -1)
+ return -1;
+ }
return 0;
}
}
}
-static int check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs);
+/* Try several methods to determine the hostname from a Linux or
+ * FreeBSD guest. Note that type and distro have been set, so we can
+ * use that information to direct the search.
+ */
+static int
+check_hostname_unix (guestfs_h *g, struct inspect_fs *fs)
+{
+ switch (fs->type) {
+ case OS_TYPE_LINUX:
+ /* Red Hat-derived would be in /etc/sysconfig/network, and
+ * Debian-derived in the file /etc/hostname. Very old Debian and
+ * SUSE use /etc/HOSTNAME. It's best to just look for each of
+ * these files in turn, rather than try anything clever based on
+ * distro.
+ */
+ if (guestfs_is_file (g, "/etc/HOSTNAME")) {
+ fs->hostname = first_line_of_file (g, "/etc/HOSTNAME");
+ if (fs->hostname == NULL)
+ return -1;
+ }
+ else if (guestfs_is_file (g, "/etc/hostname")) {
+ fs->hostname = first_line_of_file (g, "/etc/hostname");
+ if (fs->hostname == NULL)
+ return -1;
+ }
+ else if (guestfs_is_file (g, "/etc/sysconfig/network")) {
+ if (inspect_with_augeas (g, fs, "/etc/sysconfig/network",
+ check_hostname_redhat) == -1)
+ return -1;
+ }
+ break;
+
+ case OS_TYPE_FREEBSD:
+ /* /etc/rc.conf contains the hostname, but there is no Augeas lens
+ * for this file.
+ */
+ if (guestfs_is_file (g, "/etc/rc.conf")) {
+ if (check_hostname_freebsd (g, fs) == -1)
+ return -1;
+ }
+ break;
+
+ case OS_TYPE_WINDOWS: /* not here, see check_windows_system_registry */
+ case OS_TYPE_UNKNOWN:
+ default:
+ /* nothing, keep GCC warnings happy */;
+ }
+
+ return 0;
+}
+
+/* Parse the hostname from /etc/sysconfig/network. This must be called
+ * from the inspect_with_augeas wrapper.
+ */
+static int
+check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs)
+{
+ char *hostname;
+
+ hostname = guestfs_aug_get (g, "/files/etc/sysconfig/network/HOSTNAME");
+ if (!hostname)
+ return -1;
+
+ fs->hostname = hostname; /* freed by guestfs___free_inspect_info */
+ return 0;
+}
+/* Parse the hostname from /etc/rc.conf. On FreeBSD this file
+ * contains comments, blank lines and:
+ * hostname="freebsd8.example.com"
+ * ifconfig_re0="DHCP"
+ * keymap="uk.iso"
+ * sshd_enable="YES"
+ */
static int
-check_fstab (guestfs_h *g, struct inspect_fs *fs)
+check_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs)
{
- int r;
+ const char *filename = "/etc/rc.conf";
int64_t size;
+ char **lines;
+ size_t i;
- /* 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);
+ /* Don't trust guestfs_read_lines not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > MAX_SMALL_FILE_SIZE) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
return -1;
}
- /* XXX What if !feature_available (g, "augeas")? */
- if (guestfs_aug_init (g, "/", 16|32) == -1)
+ lines = guestfs_read_lines (g, filename);
+ if (lines == NULL)
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);
-
- r = check_fstab_aug_open (g, fs);
- guestfs_aug_close (g);
- if (r == -1)
- return -1;
+ for (i = 0; lines[i] != NULL; ++i) {
+ if (STRPREFIX (lines[i], "hostname=\"") ||
+ STRPREFIX (lines[i], "hostname='")) {
+ size_t len = strlen (lines[i]) - 10 - 1;
+ fs->hostname = safe_strndup (g, &lines[i][10], len);
+ break;
+ } else if (STRPREFIX (lines[i], "hostname=")) {
+ size_t len = strlen (lines[i]) - 9;
+ fs->hostname = safe_strndup (g, &lines[i][9], len);
+ break;
+ }
+ }
+ guestfs___free_string_list (lines);
return 0;
}
static int
-check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs)
+check_fstab (guestfs_h *g, struct inspect_fs *fs)
{
char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
if (lines == NULL)
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);
+ debug (g, "fstab: device=%s mountpoint=%s", device, mountpoint);
return 0;
}
return -1;
}
- if (g->verbose)
- fprintf (stderr, "windows %%SYSTEMROOT%% = %s", systemroot);
+ debug (g, "windows %%SYSTEMROOT%% = %s", 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) == -1)
+ /* Product name and version. */
+ if (check_windows_software_registry (g, fs) == -1)
return -1;
check_package_format (g, fs);
check_package_management (g, fs);
+ /* Hostname. */
+ if (check_windows_system_registry (g, fs) == -1)
+ return -1;
+
return 0;
}
* registry fields available to callers.
*/
static int
-check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
+check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs)
{
TMP_TEMPLATE_ON_STACK (software_local);
hive_h *h = NULL;
hive_value_h *values = NULL;
- if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
+ if (download_to_tmp (g, software_path, software_local,
+ MAX_REGISTRY_SIZE) == -1)
goto out;
h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
return ret;
}
+static int
+check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs)
+{
+ TMP_TEMPLATE_ON_STACK (system_local);
+
+ size_t len = strlen (fs->windows_systemroot) + 64;
+ char system[len];
+ snprintf (system, len, "%s/system32/config/system",
+ fs->windows_systemroot);
+
+ char *system_path = resolve_windows_path_silently (g, system);
+ if (!system_path)
+ /* If the system hive doesn't exist, just accept that we cannot
+ * find hostname etc.
+ */
+ return 0;
+
+ int ret = -1;
+ hive_h *h = NULL;
+ hive_value_h *values = NULL;
+
+ if (download_to_tmp (g, system_path, system_local, MAX_REGISTRY_SIZE) == -1)
+ goto out;
+
+ h = hivex_open (system_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
+ if (h == NULL) {
+ perrorf (g, "hivex_open");
+ goto out;
+ }
+
+ hive_node_h node = hivex_root (h);
+ /* XXX Don't hard-code ControlSet001. The current control set would
+ * be another good thing to expose up through the inspection API.
+ */
+ const char *hivepath[] =
+ { "ControlSet001", "Services", "Tcpip", "Parameters" };
+ size_t i;
+ for (i = 0;
+ node != 0 && i < sizeof hivepath / sizeof hivepath[0];
+ ++i) {
+ node = hivex_node_get_child (h, node, hivepath[i]);
+ }
+
+ if (node == 0) {
+ perrorf (g, "hivex: cannot locate HKLM\\SYSTEM\\ControlSet001\\Services\\Tcpip\\Parameters");
+ goto out;
+ }
+
+ values = hivex_node_values (h, node);
+
+ for (i = 0; values[i] != 0; ++i) {
+ char *key = hivex_value_key (h, values[i]);
+ if (key == NULL) {
+ perrorf (g, "hivex_value_key");
+ goto out;
+ }
+
+ if (STRCASEEQ (key, "Hostname")) {
+ fs->hostname = hivex_value_string (h, values[i]);
+ if (!fs->hostname) {
+ perrorf (g, "hivex_value_string");
+ free (key);
+ goto out;
+ }
+ }
+ /* many other interesting fields here ... */
+
+ free (key);
+ }
+
+ ret = 0;
+
+ out:
+ if (h) hivex_close (h);
+ free (values);
+ free (system_path);
+
+ /* Free up the temporary file. */
+ unlink (system_local);
+#undef system_local_len
+
+ return ret;
+}
+
static char *
resolve_windows_path_silently (guestfs_h *g, const char *path)
{
return ret;
}
+/* Like parse_unsigned_int, but ignore trailing stuff. */
+static int
+parse_unsigned_int_ignore_trailing (guestfs_h *g, const char *str)
+{
+ long ret;
+ int r = xstrtol (str, NULL, 10, &ret, NULL);
+ if (r != LONGINT_OK) {
+ error (g, _("could not parse integer in version number: %s"), str);
+ return -1;
+ }
+ return ret;
+}
+
/* At the moment, package format and package management is just a
* simple function of the distro and major_version fields, so these
* can never return an error. We might be cleverer in future.
return safe_strdup (g, fs->windows_systemroot);
}
+char *
+guestfs__inspect_get_format (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ char *ret;
+ switch (fs->format) {
+ case OS_FORMAT_INSTALLED: ret = safe_strdup (g, "installed"); break;
+ case OS_FORMAT_INSTALLER: ret = safe_strdup (g, "installer"); break;
+ case OS_FORMAT_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
+ }
+
+ return ret;
+}
+
+int
+guestfs__inspect_is_live (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return -1;
+
+ return fs->is_live_disk;
+}
+
+int
+guestfs__inspect_is_netinst (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return -1;
+
+ return fs->is_netinst_disk;
+}
+
+int
+guestfs__inspect_is_multipart (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return -1;
+
+ return fs->is_multipart_disk;
+}
+
char **
guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
{
return ret;
}
+char *
+guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ return safe_strdup (g, fs->hostname ? : "unknown");
+}
+
+#ifdef DB_DUMP
static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
+#endif
static struct guestfs_application_list *list_applications_deb (guestfs_h *g, struct inspect_fs *fs);
static struct guestfs_application_list *list_applications_windows (guestfs_h *g, struct inspect_fs *fs);
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);
struct guestfs_application_list *ret = NULL;
- switch (fs->type) {
- case OS_TYPE_LINUX:
- switch (fs->package_format) {
- case OS_PACKAGE_FORMAT_RPM:
- ret = list_applications_rpm (g, fs);
- if (ret == NULL)
- return NULL;
+ /* Presently we can only list applications for installed disks. It
+ * is possible in future to get lists of packages from installers.
+ */
+ if (fs->format == OS_FORMAT_INSTALLED) {
+ switch (fs->type) {
+ case OS_TYPE_LINUX:
+ switch (fs->package_format) {
+ case OS_PACKAGE_FORMAT_RPM:
+#ifdef DB_DUMP
+ ret = list_applications_rpm (g, fs);
+ if (ret == NULL)
+ return NULL;
+#endif
+ break;
+
+ case OS_PACKAGE_FORMAT_DEB:
+ ret = list_applications_deb (g, fs);
+ if (ret == NULL)
+ return NULL;
+ break;
+
+ case OS_PACKAGE_FORMAT_PACMAN:
+ case OS_PACKAGE_FORMAT_EBUILD:
+ case OS_PACKAGE_FORMAT_PISI:
+ case OS_PACKAGE_FORMAT_UNKNOWN:
+ default:
+ /* nothing - keep GCC happy */;
+ }
break;
- case OS_PACKAGE_FORMAT_DEB:
- ret = list_applications_deb (g, fs);
+ case OS_TYPE_WINDOWS:
+ ret = list_applications_windows (g, fs);
if (ret == NULL)
return NULL;
break;
- case OS_PACKAGE_FORMAT_PACMAN:
- case OS_PACKAGE_FORMAT_EBUILD:
- case OS_PACKAGE_FORMAT_PISI:
- case OS_PACKAGE_FORMAT_UNKNOWN:
+ case OS_TYPE_FREEBSD:
+ case OS_TYPE_UNKNOWN:
default:
/* nothing - keep GCC happy */;
}
- break;
-
- case OS_TYPE_WINDOWS:
- ret = list_applications_windows (g, fs);
- if (ret == NULL)
- return NULL;
- break;
-
- case OS_TYPE_FREEBSD:
- case OS_TYPE_UNKNOWN:
- default:
- /* nothing - keep GCC happy */;
}
if (ret == NULL) {
return ret;
}
+#ifdef DB_DUMP
static struct guestfs_application_list *
list_applications_rpm (guestfs_h *g, struct inspect_fs *fs)
{
TMP_TEMPLATE_ON_STACK (tmpfile);
- if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, 10000000) == -1)
+ if (download_to_tmp (g, "/var/lib/rpm/Name", tmpfile, MAX_PKG_DB_SIZE) == -1)
return NULL;
struct guestfs_application_list *apps = NULL, *ret = NULL;
char line[1024];
size_t len;
- snprintf (cmd, cmd_len, "db_dump -p '%s'", tmpfile);
+ snprintf (cmd, cmd_len, DB_DUMP " -p '%s'", tmpfile);
- if (g->verbose)
- fprintf (stderr, "list_applications_rpm: %s\n", cmd);
+ debug (g, "list_applications_rpm: %s", cmd);
pp = popen (cmd, "r");
if (pp == NULL) {
return ret;
}
+#endif /* defined DB_DUMP */
static struct guestfs_application_list *
list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
{
TMP_TEMPLATE_ON_STACK (tmpfile);
- if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile, 10000000) == -1)
+ if (download_to_tmp (g, "/var/lib/dpkg/status", tmpfile,
+ MAX_PKG_DB_SIZE) == -1)
return NULL;
struct guestfs_application_list *apps = NULL, *ret = NULL;
hive_h *h = NULL;
hive_node_h *children = NULL;
- if (download_to_tmp (g, software_path, software_local, 100000000) == -1)
+ if (download_to_tmp (g, software_path, software_local,
+ MAX_REGISTRY_SIZE) == -1)
goto out;
h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
return 0;
}
+/* Call 'f' with Augeas opened and having parsed 'filename' (this file
+ * must exist). As a security measure, this bails if the file is too
+ * large for a reasonable configuration file. After the call to 'f'
+ * Augeas is closed.
+ */
+static int
+inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename,
+ int (*f) (guestfs_h *, struct inspect_fs *))
+{
+ /* Security: Refuse to do this if filename is too large. */
+ int64_t size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > MAX_AUGEAS_FILE_SIZE) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return -1;
+ }
+
+ /* If !feature_available (g, "augeas") then the next call will fail.
+ * Arguably we might want to fall back to a non-Augeas method in
+ * this case.
+ */
+ if (guestfs_aug_init (g, "/", 16|32) == -1)
+ return -1;
+
+ int r = -1;
+
+ /* Tell Augeas to only load one file (thanks Raphaël Pinson). */
+ char buf[strlen (filename) + 64];
+ snprintf (buf, strlen (filename) + 64, "/augeas/load//incl[. != \"%s\"]",
+ filename);
+ if (guestfs_aug_rm (g, buf) == -1)
+ goto out;
+
+ if (guestfs_aug_load (g) == -1)
+ goto out;
+
+ r = f (g, fs);
+
+ out:
+ guestfs_aug_close (g);
+
+ return r;
+}
+
+/* Get the first line of a small file, without any trailing newline
+ * character.
+ */
+static char *
+first_line_of_file (guestfs_h *g, const char *filename)
+{
+ char **lines;
+ int64_t size;
+ char *ret;
+
+ /* Don't trust guestfs_head_n not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return NULL;
+ if (size > MAX_SMALL_FILE_SIZE) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return NULL;
+ }
+
+ lines = guestfs_head_n (g, 1, filename);
+ if (lines == NULL)
+ return NULL;
+ if (lines[0] == NULL) {
+ error (g, _("%s: file is empty"), filename);
+ guestfs___free_string_list (lines);
+ return NULL;
+ }
+ /* lines[1] should be NULL because of '1' argument above ... */
+
+ ret = lines[0]; /* caller frees */
+ free (lines); /* free the array */
+
+ return ret;
+}
+
+/* Get the first matching line (using guestfs_egrep{,i}) of a small file,
+ * without any trailing newline character.
+ *
+ * Returns: 1 = returned a line (in *ret)
+ * 0 = no match
+ * -1 = error
+ */
+static int
+first_egrep_of_file (guestfs_h *g, const char *filename,
+ const char *eregex, int iflag, char **ret)
+{
+ char **lines;
+ int64_t size;
+ size_t i;
+
+ /* Don't trust guestfs_egrep not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > MAX_SMALL_FILE_SIZE) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return -1;
+ }
+
+ lines = (!iflag ? guestfs_egrep : guestfs_egrepi) (g, eregex, filename);
+ if (lines == NULL)
+ return -1;
+ if (lines[0] == NULL) {
+ guestfs___free_string_list (lines);
+ return 0;
+ }
+
+ *ret = lines[0]; /* caller frees */
+
+ /* free up any other matches and the array itself */
+ for (i = 1; lines[i] != NULL; ++i)
+ free (lines[i]);
+ free (lines);
+
+ return 1;
+}
+
#else /* no PCRE or hivex at compile time */
/* XXX These functions should be in an optgroup. */
NOT_IMPL(NULL);
}
+char *
+guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
struct guestfs_application_list *
guestfs__inspect_list_applications (guestfs_h *g, const char *root)
{
NOT_IMPL(NULL);
}
+char *
+guestfs__inspect_get_format (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
+int
+guestfs__inspect_is_live (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(-1);
+}
+
+int
+guestfs__inspect_is_netinst (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(-1);
+}
+
+int
+guestfs__inspect_is_multipart (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(-1);
+}
+
#endif /* no PCRE or hivex at compile time */
void
free (g->fses[i].device);
free (g->fses[i].product_name);
free (g->fses[i].arch);
+ free (g->fses[i].hostname);
free (g->fses[i].windows_systemroot);
size_t j;
for (j = 0; j < g->fses[i].nr_fstab; ++j) {
return 0;
if (r != 1) {
/* 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",
+ warning (g, "%s: %s: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
__FILE__, __func__, r, str);
return 0;
}
return NULL;
if (r != 2) {
/* 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",
+ warning (g, "%s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"",
__FILE__, __func__, r, str);
return NULL;
}
return 0;
if (r != 3) {
/* 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",
+ warning (g, "%s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"",
__FILE__, __func__, r, str);
return 0;
}
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",
+ warning (g, "%s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"",
__FILE__, __func__, r, str);
return 0;
}
git.annexia.org / libguestfs.git / blobdiff