#include <stdint.h>
#include <inttypes.h>
#include <unistd.h>
+#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <errno.h>
#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
- * simultaneously.
- */
-static pcre *re_fedora;
-static pcre *re_rhel_old;
-static pcre *re_rhel;
-static pcre *re_rhel_no_minor;
-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));
-static void free_regexps (void) __attribute__((destructor));
-
-static void
-compile_regexps (void)
-{
- const char *err;
- int offset;
-
-#define COMPILE(re,pattern,options) \
- do { \
- re = pcre_compile ((pattern), (options), &err, &offset, NULL); \
- if (re == NULL) { \
- ignore_value (write (2, err, strlen (err))); \
- abort (); \
- } \
- } while (0)
-
- COMPILE (re_fedora, "Fedora release (\\d+)", 0);
- COMPILE (re_rhel_old,
- "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+).*Update (\\d+)", 0);
- COMPILE (re_rhel,
- "(?:Red Hat|CentOS|Scientific Linux).*release (\\d+)\\.(\\d+)", 0);
- COMPILE (re_rhel_no_minor,
- "(?: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);
- 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);
-}
-
-static void
-free_regexps (void)
-{
- pcre_free (re_fedora);
- pcre_free (re_rhel_old);
- pcre_free (re_rhel);
- pcre_free (re_rhel_no_minor);
- 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);
-}
-
/* The main inspection code. */
-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, 0) == -1) {
+ if (guestfs___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], 0, i+1) == -1) {
+ if (guestfs___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], 0, 0) == -1) {
+ if (guestfs___check_for_filesystem_on (g, lvs[i], 0, 0) == -1) {
guestfs___free_string_list (lvs);
guestfs___free_inspect_info (g);
return NULL;
}
/* At this point we have, in the handle, a list of all filesystems
- * found and data about each one. Now we assemble the list of
- * filesystems which are root devices and return that to the user.
- * Fall through to guestfs__inspect_get_roots to do that.
- */
- char **ret = guestfs__inspect_get_roots (g);
- if (ret == NULL)
- guestfs___free_inspect_info (g);
- return ret;
-}
-
-/* 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, 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_software_registry (guestfs_h *g, struct inspect_fs *fs);
-static int check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs);
-static char *map_registry_disk_blob (guestfs_h *g, const char *blob);
-static char *case_sensitive_path_silently (guestfs_h *g, const char *);
-static int is_file_nocase (guestfs_h *g, const char *);
-static int is_dir_nocase (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,
- 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
- * 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");
-
- 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);
- 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, is_block, is_partnum);
-
- /* Unmount the filesystem. */
- if (guestfs_umount_all (g) == -1)
- return -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,
- int is_block, int is_partnum)
-{
- 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;
-
- /* 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;
- fs->format = OS_FORMAT_INSTALLED;
- if (check_freebsd_root (g, fs) == -1)
- return -1;
- }
- /* Linux root? */
- 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;
- fs->format = OS_FORMAT_INSTALLED;
- if (check_linux_root (g, fs) == -1)
- return -1;
- }
- /* Linux /usr/local? */
- 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 (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;
- /* 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?
- * Note that if a Windows guest has multiple disks and applications
- * are installed on those other disks, then those other disks will
- * contain "/Program Files" and "/System Volume Information". Those
- * would *not* be Windows root disks. (RHBZ#674130)
- */
- else if (is_file_nocase (g, "/AUTOEXEC.BAT") > 0 ||
- is_dir_nocase (g, "/WINDOWS") > 0 ||
- is_dir_nocase (g, "/WIN32") > 0 ||
- is_dir_nocase (g, "/WINNT") > 0 ||
- is_file_nocase (g, "/boot.ini") > 0 ||
- is_file_nocase (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;
- }
- /* Windows volume with installed applications (but not root)? */
- else if (is_dir_nocase (g, "/System Volume Information") > 0 &&
- is_dir_nocase (g, "/Program Files") > 0)
- fs->content = FS_CONTENT_WINDOWS_VOLUME_WITH_APPS;
- /* Windows volume (but not root)? */
- else if (is_dir_nocase (g, "/System Volume Information") > 0)
- fs->content = FS_CONTENT_WINDOWS_VOLUME;
- /* 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;
-}
-
-/* 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)
-{
- fs->product_name = first_line_of_file (g, release_filename);
- if (fs->product_name == NULL)
- return -1;
- 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
- *
- * [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)
-{
- const char *filename = "/etc/lsb-release";
- int64_t size;
- char **lines;
- size_t i;
- int r = 0;
-
- /* 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;
-
- 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 (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)) {
- fs->major_version = parse_unsigned_int (g, major);
- free (major);
- if (fs->major_version == -1) {
- free (minor);
- guestfs___free_string_list (lines);
- return -1;
- }
- fs->minor_version = parse_unsigned_int (g, minor);
- free (minor);
- if (fs->minor_version == -1) {
- guestfs___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;
- }
- }
-
- guestfs___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
- * associated devices.
- */
-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. */
-
- if (parse_release_file (g, fs, "/etc/redhat-release") == -1)
- return -1;
-
- 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;
-
- if (parse_release_file (g, fs, "/etc/debian_version") == -1)
- return -1;
-
- 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;
-
- 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.
- */
- }
- else if (guestfs_exists (g, "/etc/gentoo-release") > 0) {
- fs->distro = OS_DISTRO_GENTOO;
-
- 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;
- }
- else if (guestfs_exists (g, "/etc/slackware-version") > 0) {
- fs->distro = OS_DISTRO_SLACKWARE;
-
- if (parse_release_file (g, fs, "/etc/slackware-version") == -1)
- return -1;
-
- if (parse_major_minor (g, fs) == -1)
- return -1;
- }
-
- skip_release_checks:;
-
- /* If distro test above was successful, work out the package format. */
- check_package_format (g, fs);
- 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 (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;
-}
-
-/* The currently mounted device is known to be a FreeBSD root. */
-static int
-check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
-{
- 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 (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 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. */
- 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;
- }
- }
- }
-}
-
-/* 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_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs)
-{
- const char *filename = "/etc/rc.conf";
- int64_t size;
- char **lines;
- size_t i;
-
- /* 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;
- }
-
- lines = guestfs_read_lines (g, filename);
- if (lines == NULL)
- 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 (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"));
- guestfs___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) {
- guestfs___free_string_list (lines);
- return -1;
- }
-
- snprintf (augpath, sizeof augpath, "%s/file", lines[i]);
- char *mp = guestfs_aug_get (g, augpath);
- if (mp == NULL) {
- guestfs___free_string_list (lines);
- free (spec);
- return -1;
- }
-
- int r = add_fstab_entry (g, fs, spec, mp);
- free (spec);
- free (mp);
-
- if (r == -1) {
- guestfs___free_string_list (lines);
- return -1;
- }
- }
- }
-
- guestfs___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;
-
- /* 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]);
- /* Ignore "/.swap" (Pardus) and pseudo-devices like "tmpfs". */
- else if (STRPREFIX (spec, "/dev/"))
- /* Resolve guest block device names. */
- device = resolve_fstab_device (g, spec);
-
- /* 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;
-
- debug (g, "fstab: device=%s mountpoint=%s", device, mountpoint);
-
- return 0;
-}
-
-/* Resolve block device name to the libguestfs device name, eg.
- * /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 *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
- * 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++)
- ;
-
- 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]);
- }
-
- free (a1);
- guestfs___free_string_list (devices);
- }
- 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;
-}
-
-/* XXX Handling of boot.ini in the Perl version was pretty broken. It
- * essentially didn't do anything for modern Windows guests.
- * Therefore I've omitted all that code.
- */
-static int
-check_windows_root (guestfs_h *g, struct inspect_fs *fs)
-{
- fs->type = OS_TYPE_WINDOWS;
- fs->distro = OS_DISTRO_WINDOWS;
-
- /* Try to find Windows systemroot using some common locations. */
- const char *systemroots[] =
- { "/windows", "/winnt", "/win32", "/win" };
- size_t i;
- char *systemroot = NULL;
- for (i = 0;
- systemroot == NULL && i < sizeof systemroots / sizeof systemroots[0];
- ++i) {
- systemroot = case_sensitive_path_silently (g, systemroots[i]);
- }
-
- if (!systemroot) {
- error (g, _("cannot resolve Windows %%SYSTEMROOT%%"));
- return -1;
- }
-
- 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;
-
- /* 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;
-}
-
-static int
-check_windows_arch (guestfs_h *g, struct inspect_fs *fs)
-{
- size_t len = strlen (fs->windows_systemroot) + 32;
- char cmd_exe[len];
- snprintf (cmd_exe, len, "%s/system32/cmd.exe", fs->windows_systemroot);
-
- char *cmd_exe_path = case_sensitive_path_silently (g, cmd_exe);
- if (!cmd_exe_path)
- return 0;
-
- char *arch = guestfs_file_architecture (g, cmd_exe_path);
- free (cmd_exe_path);
-
- if (arch)
- fs->arch = arch; /* freed by guestfs___free_inspect_info */
-
- return 0;
-}
-
-/* At the moment, pull just the ProductName and version numbers from
- * the registry. In future there is a case for making many more
- * registry fields available to callers.
- */
-static int
-check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs)
-{
- TMP_TEMPLATE_ON_STACK (software_local);
-
- size_t len = strlen (fs->windows_systemroot) + 64;
- char software[len];
- snprintf (software, len, "%s/system32/config/software",
- fs->windows_systemroot);
-
- char *software_path = case_sensitive_path_silently (g, software);
- if (!software_path)
- /* If the software hive doesn't exist, just accept that we cannot
- * find product_name etc.
- */
- return 0;
-
- int ret = -1;
- hive_h *h = NULL;
- hive_value_h *values = NULL;
-
- 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);
- if (h == NULL) {
- perrorf (g, "hivex_open");
- goto out;
- }
-
- hive_node_h node = hivex_root (h);
- const char *hivepath[] =
- { "Microsoft", "Windows NT", "CurrentVersion" };
- 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\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion");
- 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, "ProductName")) {
- fs->product_name = hivex_value_string (h, values[i]);
- if (!fs->product_name) {
- perrorf (g, "hivex_value_string");
- free (key);
- goto out;
- }
- }
- else if (STRCASEEQ (key, "CurrentVersion")) {
- char *version = hivex_value_string (h, values[i]);
- if (!version) {
- perrorf (g, "hivex_value_string");
- free (key);
- goto out;
- }
- char *major, *minor;
- if (match2 (g, version, re_windows_version, &major, &minor)) {
- fs->major_version = parse_unsigned_int (g, major);
- free (major);
- if (fs->major_version == -1) {
- free (minor);
- free (key);
- free (version);
- goto out;
- }
- fs->minor_version = parse_unsigned_int (g, minor);
- free (minor);
- if (fs->minor_version == -1) {
- free (key);
- free (version);
- goto out;
- }
- }
-
- free (version);
- }
- else if (STRCASEEQ (key, "InstallationType")) {
- fs->product_variant = hivex_value_string (h, values[i]);
- if (!fs->product_variant) {
- perrorf (g, "hivex_value_string");
- free (key);
- goto out;
- }
- }
-
- free (key);
- }
-
- ret = 0;
-
- out:
- if (h) hivex_close (h);
- free (values);
- free (software_path);
-
- /* Free up the temporary file. */
- unlink (software_local);
-#undef software_local_len
-
- 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 = case_sensitive_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_node_h root, node;
- hive_value_h value, *values = NULL;
- int32_t dword;
- size_t i, count;
-
- 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;
- }
-
- root = hivex_root (h);
- if (root == 0) {
- perrorf (g, "hivex_root");
- goto out;
- }
-
- /* Get the CurrentControlSet. */
- errno = 0;
- node = hivex_node_get_child (h, root, "Select");
- if (node == 0) {
- if (errno != 0)
- perrorf (g, "hivex_node_get_child");
- else
- error (g, "hivex: could not locate HKLM\\SYSTEM\\Select");
- goto out;
- }
-
- errno = 0;
- value = hivex_node_get_value (h, node, "Current");
- if (value == 0) {
- if (errno != 0)
- perrorf (g, "hivex_node_get_value");
- else
- error (g, "hivex: HKLM\\System\\Select Default entry not found.");
- goto out;
- }
-
- /* XXX Should check the type. */
- dword = hivex_value_dword (h, value);
- fs->windows_current_control_set = safe_asprintf (g, "ControlSet%03d", dword);
-
- /* Get the drive mappings.
- * This page explains the contents of HKLM\System\MountedDevices:
- * http://www.goodells.net/multiboot/partsigs.shtml
- */
- errno = 0;
- node = hivex_node_get_child (h, root, "MountedDevices");
- if (node == 0) {
- if (errno != 0)
- perrorf (g, "hivex_node_get_child");
- else
- error (g, "hivex: could not locate HKLM\\SYSTEM\\MountedDevices");
- goto out;
- }
-
- values = hivex_node_values (h, node);
-
- /* Count how many DOS drive letter mappings there are. This doesn't
- * ignore removable devices, so it overestimates, but that doesn't
- * matter because it just means we'll allocate a few bytes extra.
- */
- for (i = count = 0; values[i] != 0; ++i) {
- char *key = hivex_value_key (h, values[i]);
- if (key == NULL) {
- perrorf (g, "hivex_value_key");
- goto out;
- }
- if (STRCASEEQLEN (key, "\\DosDevices\\", 12) &&
- c_isalpha (key[12]) && key[13] == ':')
- count++;
- free (key);
- }
-
- fs->drive_mappings = calloc (2*count + 1, sizeof (char *));
- if (fs->drive_mappings == NULL) {
- perrorf (g, "calloc");
- goto out;
- }
-
- for (i = count = 0; values[i] != 0; ++i) {
- char *key = hivex_value_key (h, values[i]);
- if (key == NULL) {
- perrorf (g, "hivex_value_key");
- goto out;
- }
- if (STRCASEEQLEN (key, "\\DosDevices\\", 12) &&
- c_isalpha (key[12]) && key[13] == ':') {
- /* Get the binary value. Is it a fixed disk? */
- char *blob, *device;
- size_t len;
- hive_type type;
-
- blob = hivex_value_value (h, values[i], &type, &len);
- if (blob != NULL && type == 3 && len == 12) {
- /* Try to map the blob to a known disk and partition. */
- device = map_registry_disk_blob (g, blob);
- if (device != NULL) {
- fs->drive_mappings[count++] = safe_strndup (g, &key[12], 1);
- fs->drive_mappings[count++] = device;
- }
- }
- free (blob);
- }
- free (key);
- }
-
- /* Get the hostname. */
- const char *hivepath[] =
- { fs->windows_current_control_set, "Services", "Tcpip", "Parameters" };
- for (node = root, 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\\%s\\Services\\Tcpip\\Parameters",
- fs->windows_current_control_set);
- goto out;
- }
-
- free (values);
- 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;
-}
-
-/* Windows Registry HKLM\SYSTEM\MountedDevices uses a blob of data
- * to store partitions. This blob is described here:
- * http://www.goodells.net/multiboot/partsigs.shtml
- * The following function maps this blob to a libguestfs partition
- * name, if possible.
- */
-static char *
-map_registry_disk_blob (guestfs_h *g, const char *blob)
-{
- char **devices = NULL;
- struct guestfs_partition_list *partitions = NULL;
- char *diskid;
- size_t i, j, len;
- char *ret = NULL;
- uint64_t part_offset;
-
- /* First 4 bytes are the disk ID. Search all devices to find the
- * disk with this disk ID.
- */
- devices = guestfs_list_devices (g);
- if (devices == NULL)
- goto out;
-
- for (i = 0; devices[i] != NULL; ++i) {
- /* Read the disk ID. */
- diskid = guestfs_pread_device (g, devices[i], 4, 0x01b8, &len);
- if (diskid == NULL)
- continue;
- if (len < 4) {
- free (diskid);
- continue;
- }
- if (memcmp (diskid, blob, 4) == 0) { /* found it */
- free (diskid);
- goto found_disk;
- }
- free (diskid);
- }
- goto out;
-
- found_disk:
- /* Next 8 bytes are the offset of the partition in bytes(!) given as
- * a 64 bit little endian number. Luckily it's easy to get the
- * partition byte offset from guestfs_part_list.
- */
- part_offset = le64toh (* (uint64_t *) &blob[4]);
-
- partitions = guestfs_part_list (g, devices[i]);
- if (partitions == NULL)
- goto out;
-
- for (j = 0; j < partitions->len; ++j) {
- if (partitions->val[j].part_start == part_offset) /* found it */
- goto found_partition;
- }
- goto out;
-
- found_partition:
- /* Construct the full device name. */
- ret = safe_asprintf (g, "%s%d", devices[i], partitions->val[j].part_num);
-
- out:
- if (devices)
- guestfs___free_string_list (devices);
- if (partitions)
- guestfs_free_partition_list (partitions);
- return ret;
-}
-
-static char *
-case_sensitive_path_silently (guestfs_h *g, const char *path)
-{
- guestfs_error_handler_cb old_error_cb = g->error_cb;
- g->error_cb = NULL;
- char *ret = guestfs_case_sensitive_path (g, path);
- g->error_cb = old_error_cb;
- return ret;
-}
-
-static int
-is_file_nocase (guestfs_h *g, const char *path)
-{
- char *p;
- int r;
-
- p = case_sensitive_path_silently (g, path);
- if (!p)
- return 0;
- r = guestfs_is_file (g, p);
- free (p);
- return r > 0;
-}
-
-static int
-is_dir_nocase (guestfs_h *g, const char *path)
-{
- char *p;
- int r;
-
- p = case_sensitive_path_silently (g, path);
- if (!p)
- return 0;
- r = guestfs_is_dir (g, p);
- free (p);
- return r > 0;
-}
-
-static int
-extend_fses (guestfs_h *g)
-{
- size_t n = g->nr_fses + 1;
- struct inspect_fs *p;
-
- p = realloc (g->fses, n * sizeof (struct inspect_fs));
- if (p == NULL) {
- perrorf (g, "realloc");
- return -1;
- }
-
- g->fses = p;
- g->nr_fses = n;
-
- memset (&g->fses[n-1], 0, sizeof (struct inspect_fs));
-
- return 0;
-}
-
-/* Parse small, unsigned ints, as used in version numbers. */
-static int
-parse_unsigned_int (guestfs_h *g, const char *str)
-{
- long ret;
- int r = xstrtol (str, NULL, 10, &ret, "");
- if (r != LONGINT_OK) {
- error (g, _("could not parse integer in version number: %s"), str);
- return -1;
- }
- 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.
- */
-static void
-check_package_format (guestfs_h *g, struct inspect_fs *fs)
-{
- switch (fs->distro) {
- case OS_DISTRO_FEDORA:
- 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_ARCHLINUX:
- fs->package_format = OS_PACKAGE_FORMAT_PACMAN;
- break;
- case OS_DISTRO_GENTOO:
- fs->package_format = OS_PACKAGE_FORMAT_EBUILD;
- break;
- case OS_DISTRO_PARDUS:
- fs->package_format = OS_PACKAGE_FORMAT_PISI;
- break;
-
- case OS_DISTRO_SLACKWARE:
- case OS_DISTRO_WINDOWS:
- case OS_DISTRO_UNKNOWN:
- default:
- fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN;
- break;
- }
-}
-
-static void
-check_package_management (guestfs_h *g, struct inspect_fs *fs)
-{
- switch (fs->distro) {
- case OS_DISTRO_FEDORA:
- case OS_DISTRO_MEEGO:
- fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
- break;
-
- case OS_DISTRO_REDHAT_BASED:
- case OS_DISTRO_RHEL:
- if (fs->major_version >= 5)
- fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
- else
- fs->package_management = OS_PACKAGE_MANAGEMENT_UP2DATE;
- 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_ARCHLINUX:
- fs->package_management = OS_PACKAGE_MANAGEMENT_PACMAN;
- break;
- case OS_DISTRO_GENTOO:
- fs->package_management = OS_PACKAGE_MANAGEMENT_PORTAGE;
- 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_SLACKWARE:
- case OS_DISTRO_WINDOWS:
- case OS_DISTRO_UNKNOWN:
- default:
- fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN;
- break;
- }
-}
-
-static struct inspect_fs *
-search_for_root (guestfs_h *g, const char *root)
-{
- if (g->nr_fses == 0) {
- error (g, _("no inspection data: call guestfs_inspect_os first"));
- return NULL;
- }
-
- size_t i;
- struct inspect_fs *fs;
- for (i = 0; i < g->nr_fses; ++i) {
- fs = &g->fses[i];
- if (fs->is_root && STREQ (root, fs->device))
- return fs;
- }
-
- error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"),
- root);
- return NULL;
+ * found and data about each one. Now we assemble the list of
+ * filesystems which are root devices and return that to the user.
+ * Fall through to guestfs__inspect_get_roots to do that.
+ */
+ char **ret = guestfs__inspect_get_roots (g);
+ if (ret == NULL)
+ guestfs___free_inspect_info (g);
+ return ret;
}
char **
char *
guestfs__inspect_get_type (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_arch (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_distro (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *ret;
switch (fs->distro) {
case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break;
+ case OS_DISTRO_CENTOS: ret = safe_strdup (g, "centos"); 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_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_SCIENTIFIC_LINUX: ret = safe_strdup (g, "scientificlinux"); break;
case OS_DISTRO_SLACKWARE: ret = safe_strdup (g, "slackware"); break;
case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break;
case OS_DISTRO_UBUNTU: ret = safe_strdup (g, "ubuntu"); break;
int
guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return -1;
int
guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return -1;
char *
guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_product_variant (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
guestfs__inspect_get_windows_current_control_set (guestfs_h *g,
const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_format (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
int
guestfs__inspect_is_live (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return -1;
int
guestfs__inspect_is_netinst (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return -1;
int
guestfs__inspect_is_multipart (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return -1;
char **
guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char **
guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
size_t i, count;
struct inspect_fs *fs;
- fs = search_for_root (g, root);
+ fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___search_for_root (g, root);
if (!fs)
return NULL;
char *
guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
+ struct inspect_fs *fs = guestfs___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);
-static void sort_applications (struct guestfs_application_list *);
-
-/* Unlike the simple inspect-get-* calls, this one assumes that the
- * disks are mounted up, and reads files from the mounted disks.
+/* Download a guest file to a local temporary file. The file is
+ * downloaded into g->tmpdir, unless it already exists in g->tmpdir.
+ * The final name will be g->tmpdir + "/" + basename. Refuse to
+ * download the guest file if it is larger than max_size. The caller
+ * does not need to delete the temporary file after use: it will be
+ * deleted when the handle is cleaned up.
*/
-struct guestfs_application_list *
-guestfs__inspect_list_applications (guestfs_h *g, const char *root)
-{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
-
- struct guestfs_application_list *ret = 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_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) {
- /* Don't know how to do inspection. Not an error, return an
- * empty list.
- */
- ret = safe_malloc (g, sizeof *ret);
- ret->len = 0;
- ret->val = NULL;
- }
-
- sort_applications (ret);
-
- 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, MAX_PKG_DB_SIZE) == -1)
- return NULL;
-
- struct guestfs_application_list *apps = NULL, *ret = NULL;
-#define cmd_len (strlen (tmpfile) + 64)
- char cmd[cmd_len];
- FILE *pp = NULL;
- char line[1024];
- size_t len;
-
- snprintf (cmd, cmd_len, DB_DUMP " -p '%s'", tmpfile);
-
- debug (g, "list_applications_rpm: %s", cmd);
-
- pp = popen (cmd, "r");
- if (pp == NULL) {
- perrorf (g, "popen: %s", cmd);
- goto out;
- }
-
- /* Ignore everything to end-of-header marker. */
- for (;;) {
- if (fgets (line, sizeof line, pp) == NULL) {
- error (g, _("unexpected end of output from db_dump command"));
- goto out;
- }
-
- len = strlen (line);
- if (len > 0 && line[len-1] == '\n') {
- line[len-1] = '\0';
- len--;
- }
-
- if (STREQ (line, "HEADER=END"))
- break;
- }
-
- /* Allocate 'apps' list. */
- apps = safe_malloc (g, sizeof *apps);
- apps->len = 0;
- apps->val = NULL;
-
- /* Read alternate lines until end of data marker. */
- for (;;) {
- if (fgets (line, sizeof line, pp) == NULL) {
- error (g, _("unexpected end of output from db_dump command"));
- goto out;
- }
-
- len = strlen (line);
- if (len > 0 && line[len-1] == '\n') {
- line[len-1] = '\0';
- len--;
- }
-
- if (STREQ (line, "DATA=END"))
- break;
-
- char *p = line;
- if (len > 0 && line[0] == ' ')
- p = line+1;
- /* Ignore any application name that contains non-printable chars.
- * In the db_dump output these would be escaped with backslash, so
- * we can just ignore any such line.
- */
- if (strchr (p, '\\') == NULL)
- add_application (g, apps, p, "", 0, "", "", "", "", "", "");
-
- /* Discard next line. */
- if (fgets (line, sizeof line, pp) == NULL) {
- error (g, _("unexpected end of output from db_dump command"));
- goto out;
- }
- }
-
- /* Catch errors from the db_dump command. */
- if (pclose (pp) == -1) {
- perrorf (g, "pclose: %s", cmd);
- goto out;
- }
- pp = NULL;
-
- ret = apps;
-
- out:
- if (ret == NULL && apps != NULL)
- guestfs_free_application_list (apps);
- if (pp)
- pclose (pp);
- unlink (tmpfile);
-#undef cmd_len
-
- return ret;
-}
-#endif /* defined DB_DUMP */
-
-static struct guestfs_application_list *
-list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
+int
+guestfs___download_to_tmp (guestfs_h *g, const char *filename,
+ const char *basename, int64_t max_size)
{
- TMP_TEMPLATE_ON_STACK (tmpfile);
-
- 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;
- FILE *fp = NULL;
- char line[1024];
- size_t len;
- char *name = NULL, *version = NULL, *release = NULL;
- int installed_flag = 0;
-
- fp = fopen (tmpfile, "r");
- if (fp == NULL) {
- perrorf (g, "fopen: %s", tmpfile);
- goto out;
- }
-
- /* Allocate 'apps' list. */
- apps = safe_malloc (g, sizeof *apps);
- apps->len = 0;
- apps->val = NULL;
-
- /* Read the temporary file. Each package entry is separated by
- * a blank line.
- * XXX Strictly speaking this is in mailbox header format, so it
- * would be possible for fields to spread across multiple lines,
- * although for the short fields that we are concerned about this is
- * unlikely and not seen in practice.
- */
- while (fgets (line, sizeof line, fp) != NULL) {
- len = strlen (line);
- if (len > 0 && line[len-1] == '\n') {
- line[len-1] = '\0';
- len--;
- }
-
- if (STRPREFIX (line, "Package: ")) {
- free (name);
- name = safe_strdup (g, &line[9]);
- }
- else if (STRPREFIX (line, "Status: ")) {
- installed_flag = strstr (&line[8], "installed") != NULL;
- }
- else if (STRPREFIX (line, "Version: ")) {
- free (version);
- free (release);
- char *p = strchr (&line[9], '-');
- if (p) {
- *p = '\0';
- version = safe_strdup (g, &line[9]);
- release = safe_strdup (g, p+1);
- } else {
- version = safe_strdup (g, &line[9]);
- release = NULL;
- }
- }
- else if (STREQ (line, "")) {
- if (installed_flag && name && version)
- add_application (g, apps, name, "", 0, version, release ? : "",
- "", "", "", "");
- free (name);
- free (version);
- free (release);
- name = version = release = NULL;
- installed_flag = 0;
- }
- }
+ int tmpdirfd, fd, r = -1;
+ char buf[32];
+ int64_t size;
- if (fclose (fp) == -1) {
- perrorf (g, "fclose: %s", tmpfile);
- goto out;
+ tmpdirfd = open (g->tmpdir, O_RDONLY);
+ if (tmpdirfd == -1) {
+ perrorf (g, _("%s: temporary directory not found"), g->tmpdir);
+ return -1;
}
- fp = NULL;
-
- ret = apps;
-
- out:
- if (ret == NULL && apps != NULL)
- guestfs_free_application_list (apps);
- if (fp)
- fclose (fp);
- free (name);
- free (version);
- free (release);
- unlink (tmpfile);
- return ret;
-}
-
-static void list_applications_windows_from_path (guestfs_h *g, hive_h *h, struct guestfs_application_list *apps, const char **path, size_t path_len);
-
-static struct guestfs_application_list *
-list_applications_windows (guestfs_h *g, struct inspect_fs *fs)
-{
- TMP_TEMPLATE_ON_STACK (software_local);
-
- /* XXX We already download the SOFTWARE hive when doing general
- * inspection. We could avoid this second download of the same file
- * by caching these entries in the handle.
- */
- size_t len = strlen (fs->windows_systemroot) + 64;
- char software[len];
- snprintf (software, len, "%s/system32/config/software",
- fs->windows_systemroot);
-
- char *software_path = case_sensitive_path_silently (g, software);
- if (!software_path)
- /* If the software hive doesn't exist, just accept that we cannot
- * find product_name etc.
- */
- return 0;
-
- struct guestfs_application_list *ret = NULL;
- hive_h *h = NULL;
-
- if (download_to_tmp (g, software_path, software_local,
- MAX_REGISTRY_SIZE) == -1)
- goto out;
-
- free (software_path);
- software_path = NULL;
- h = hivex_open (software_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
- if (h == NULL) {
- perrorf (g, "hivex_open");
+ /* If the file has already been downloaded, return. */
+ if (faccessat (tmpdirfd, basename, R_OK, 0) == 0) {
+ r = 0;
goto out;
}
- /* Allocate apps list. */
- ret = safe_malloc (g, sizeof *ret);
- ret->len = 0;
- ret->val = NULL;
-
- /* Ordinary native applications. */
- const char *hivepath[] =
- { "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
- list_applications_windows_from_path (g, h, ret, hivepath,
- sizeof hivepath / sizeof hivepath[0]);
-
- /* 32-bit emulated Windows apps running on the WOW64 emulator.
- * http://support.microsoft.com/kb/896459 (RHBZ#692545).
- */
- const char *hivepath2[] =
- { "WOW6432node", "Microsoft", "Windows", "CurrentVersion", "Uninstall" };
- list_applications_windows_from_path (g, h, ret, hivepath2,
- sizeof hivepath2 / sizeof hivepath2[0]);
-
- out:
- if (h) hivex_close (h);
- free (software_path);
-
- /* Delete the temporary file. */
- unlink (software_local);
-#undef software_local_len
-
- return ret;
-}
-
-static void
-list_applications_windows_from_path (guestfs_h *g, hive_h *h,
- struct guestfs_application_list *apps,
- const char **path, size_t path_len)
-{
- hive_node_h *children = NULL;
- hive_node_h node;
- size_t i;
-
- node = hivex_root (h);
-
- for (i = 0; node != 0 && i < path_len; ++i)
- node = hivex_node_get_child (h, node, path[i]);
-
- if (node == 0)
- return;
-
- children = hivex_node_children (h, node);
- if (children == NULL)
- return;
-
- /* Consider any child node that has a DisplayName key.
- * See also:
- * http://nsis.sourceforge.net/Add_uninstall_information_to_Add/Remove_Programs#Optional_values
- */
- for (i = 0; children[i] != 0; ++i) {
- hive_value_h value;
- char *name = NULL;
- char *display_name = NULL;
- char *version = NULL;
- char *install_path = NULL;
- char *publisher = NULL;
- char *url = NULL;
- char *comments = NULL;
-
- /* Use the node name as a proxy for the package name in Linux. The
- * display name is not language-independent, so it cannot be used.
- */
- name = hivex_node_name (h, children[i]);
- if (name == NULL)
- continue;
-
- value = hivex_node_get_value (h, children[i], "DisplayName");
- if (value) {
- display_name = hivex_value_string (h, value);
- if (display_name) {
- value = hivex_node_get_value (h, children[i], "DisplayVersion");
- if (value)
- version = hivex_value_string (h, value);
- value = hivex_node_get_value (h, children[i], "InstallLocation");
- if (value)
- install_path = hivex_value_string (h, value);
- value = hivex_node_get_value (h, children[i], "Publisher");
- if (value)
- publisher = hivex_value_string (h, value);
- value = hivex_node_get_value (h, children[i], "URLInfoAbout");
- if (value)
- url = hivex_value_string (h, value);
- value = hivex_node_get_value (h, children[i], "Comments");
- if (value)
- comments = hivex_value_string (h, value);
-
- add_application (g, apps, name, display_name, 0,
- version ? : "",
- "",
- install_path ? : "",
- publisher ? : "",
- url ? : "",
- comments ? : "");
- }
- }
-
- free (name);
- free (display_name);
- free (version);
- free (install_path);
- free (publisher);
- free (url);
- free (comments);
- }
-
- free (children);
-}
-
-static void
-add_application (guestfs_h *g, struct guestfs_application_list *apps,
- 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)
-{
- apps->len++;
- apps->val = safe_realloc (g, apps->val,
- apps->len * sizeof (struct guestfs_application));
- apps->val[apps->len-1].app_name = safe_strdup (g, name);
- apps->val[apps->len-1].app_display_name = safe_strdup (g, display_name);
- apps->val[apps->len-1].app_epoch = epoch;
- apps->val[apps->len-1].app_version = safe_strdup (g, version);
- apps->val[apps->len-1].app_release = safe_strdup (g, release);
- apps->val[apps->len-1].app_install_path = safe_strdup (g, install_path);
- /* XXX Translated path is not implemented yet. */
- apps->val[apps->len-1].app_trans_path = safe_strdup (g, "");
- apps->val[apps->len-1].app_publisher = safe_strdup (g, publisher);
- apps->val[apps->len-1].app_url = safe_strdup (g, url);
- /* XXX The next two are not yet implemented for any package
- * format, but we could easily support them for rpm and deb.
- */
- apps->val[apps->len-1].app_source_package = safe_strdup (g, "");
- apps->val[apps->len-1].app_summary = safe_strdup (g, "");
- apps->val[apps->len-1].app_description = safe_strdup (g, description);
-}
-
-/* Sort applications by name before returning the list. */
-static int
-compare_applications (const void *vp1, const void *vp2)
-{
- const struct guestfs_application *v1 = vp1;
- const struct guestfs_application *v2 = vp2;
-
- return strcmp (v1->app_name, v2->app_name);
-}
-
-static void
-sort_applications (struct guestfs_application_list *apps)
-{
- if (apps && apps->val)
- qsort (apps->val, apps->len, sizeof (struct guestfs_application),
- compare_applications);
-}
-
-/* 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;
-
+ /* Check size of remote file. */
size = guestfs_filesize (g, filename);
if (size == -1)
/* guestfs_filesize failed and has already set error in handle */
- return -1;
+ goto out;
if (size > max_size) {
error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
filename, size);
- return -1;
+ goto out;
}
- fd = mkstemp (localtmp);
+ fd = openat (tmpdirfd, basename, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY, 0600);
if (fd == -1) {
- perrorf (g, "mkstemp");
- return -1;
+ perrorf (g, "openat: %s/%s", g->tmpdir, basename);
+ goto out;
}
snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
if (guestfs_download (g, filename, buf) == -1) {
+ unlinkat (tmpdirfd, basename, 0);
close (fd);
- unlink (localtmp);
- return -1;
+ goto out;
}
if (close (fd) == -1) {
- perrorf (g, "close: %s", localtmp);
- unlink (localtmp);
- return -1;
- }
-
- 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)
+ perrorf (g, "close: %s/%s", g->tmpdir, basename);
+ unlinkat (tmpdirfd, basename, 0);
goto out;
+ }
- r = f (g, fs);
-
+ r = 0;
out:
- guestfs_aug_close (g);
+ if (tmpdirfd >= 0)
+ close (tmpdirfd);
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)
+struct inspect_fs *
+guestfs___search_for_root (guestfs_h *g, const char *root)
{
- 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);
+ if (g->nr_fses == 0) {
+ error (g, _("no inspection data: call guestfs_inspect_os first"));
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;
+ struct inspect_fs *fs;
+ for (i = 0; i < g->nr_fses; ++i) {
+ fs = &g->fses[i];
+ if (fs->is_root && STREQ (root, fs->device))
+ return fs;
}
- *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;
+ error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"),
+ root);
+ return NULL;
}
#else /* no PCRE or hivex at compile time */
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)
{
return r == 0 ? 1 : 0;
}
-
-#ifdef HAVE_PCRE
-
-/* Match a regular expression which contains no captures. Returns
- * true if it matches or false if it doesn't.
- */
-int
-guestfs___match (guestfs_h *g, const char *str, const pcre *re)
-{
- size_t len = strlen (str);
- int vec[30], r;
-
- r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
- if (r == PCRE_ERROR_NOMATCH)
- return 0;
- if (r != 1) {
- /* Internal error -- should not happen. */
- 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 1;
-}
-
-/* Match a regular expression which contains exactly one capture. If
- * the string matches, return the capture, otherwise return NULL. The
- * caller must free the result.
- */
-char *
-guestfs___match1 (guestfs_h *g, const char *str, const pcre *re)
-{
- size_t len = strlen (str);
- int vec[30], r;
-
- r = pcre_exec (re, NULL, str, len, 0, 0, vec, sizeof vec / sizeof vec[0]);
- if (r == PCRE_ERROR_NOMATCH)
- return NULL;
- if (r != 2) {
- /* Internal error -- should not happen. */
- 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 safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
-}
-
-/* Match a regular expression which contains exactly two captures. */
-int
-guestfs___match2 (guestfs_h *g, const char *str, const pcre *re,
- char **ret1, char **ret2)
-{
- 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 != 3) {
- /* Internal error -- should not happen. */
- 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;
- }
-
- *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
- *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
-
- 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. */
- 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;
- }
-
- *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