/* libguestfs
- * Copyright (C) 2010 Red Hat Inc.
+ * Copyright (C) 2010-2011 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#include <stdint.h>
#include <inttypes.h>
#include <unistd.h>
+#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
+#include <errno.h>
+#include <endian.h>
+#ifdef HAVE_PCRE
#include <pcre.h>
-#include <magic.h>
+#endif
+
+#ifdef HAVE_HIVEX
#include <hivex.h>
-#include <augeas.h>
+#endif
#include "c-ctype.h"
#include "ignore-value.h"
#include "guestfs-internal-actions.h"
#include "guestfs_protocol.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_file_elf;
-static pcre *re_file_win64;
-static pcre *re_elf_ppc64;
static pcre *re_fedora;
static pcre *re_rhel_old;
static pcre *re_rhel;
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));
} \
} while (0)
- COMPILE (re_file_elf,
- "ELF.*(?:executable|shared object|relocatable), (.+?),", 0);
- COMPILE (re_elf_ppc64, "64.*PowerPC", 0);
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);
+ 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_file_elf);
- pcre_free (re_file_win64);
- pcre_free (re_elf_ppc64);
pcre_free (re_fedora);
pcre_free (re_rhel_old);
pcre_free (re_rhel);
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);
}
-/* Match a regular expression which contains no captures. Returns
- * true if it matches or false if it doesn't.
- */
-static int
-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. */
- fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
- __FILE__, __func__, r, str);
- return 0;
- }
-
- 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.
- */
-static char *
-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. */
- fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
- __FILE__, __func__, r, str);
- return NULL;
- }
-
- return safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
-}
-
-/* Match a regular expression which contains exactly two captures. */
-static int
-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. */
- fprintf (stderr, "libguestfs: %s: %s: internal error: pcre_exec returned unexpected error code %d when matching against the string \"%s\"\n",
- __FILE__, __func__, r, str);
- return 0;
- }
-
- *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
- *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
-
- return 1;
-}
-
-/* Convert output from 'file' command on ELF files to the canonical
- * architecture string. Caller must free the result.
- */
-static char *
-canonical_elf_arch (guestfs_h *g, const char *elf_arch)
-{
- const char *r;
-
- if (strstr (elf_arch, "Intel 80386"))
- r = "i386";
- else if (strstr (elf_arch, "Intel 80486"))
- r = "i486";
- else if (strstr (elf_arch, "x86-64"))
- r = "x86_64";
- else if (strstr (elf_arch, "AMD x86-64"))
- r = "x86_64";
- else if (strstr (elf_arch, "SPARC32"))
- r = "sparc";
- else if (strstr (elf_arch, "SPARC V9"))
- r = "sparc64";
- else if (strstr (elf_arch, "IA-64"))
- r = "ia64";
- else if (match (g, elf_arch, re_elf_ppc64))
- r = "ppc64";
- else if (strstr (elf_arch, "PowerPC"))
- r = "ppc";
- else
- r = elf_arch;
-
- char *ret = safe_strdup (g, r);
- return ret;
-}
-
-static int
-is_regular_file (const char *filename)
-{
- struct stat statbuf;
-
- return lstat (filename, &statbuf) == 0 && S_ISREG (statbuf.st_mode);
-}
-
-/* Download and uncompress the cpio file to find binaries within.
- * Notes:
- * (1) Two lists must be identical.
- * (2) Implicit limit of 31 bytes for length of each element (see code
- * below).
- */
-#define INITRD_BINARIES1 "bin/ls bin/rm bin/modprobe sbin/modprobe bin/sh bin/bash bin/dash bin/nash"
-#define INITRD_BINARIES2 {"bin/ls", "bin/rm", "bin/modprobe", "sbin/modprobe", "bin/sh", "bin/bash", "bin/dash", "bin/nash"}
-
-static char *
-cpio_arch (guestfs_h *g, const char *file, const char *path)
-{
- TMP_TEMPLATE_ON_STACK (dir);
-#define dir_len (strlen (dir))
-#define initrd_len (dir_len + 16)
- char initrd[initrd_len];
-#define cmd_len (dir_len + 256)
- char cmd[cmd_len];
-#define bin_len (dir_len + 32)
- char bin[bin_len];
-
- char *ret = NULL;
-
- const char *method;
- if (strstr (file, "gzip"))
- method = "zcat";
- else if (strstr (file, "bzip2"))
- method = "bzcat";
- else
- method = "cat";
-
- if (mkdtemp (dir) == NULL) {
- perrorf (g, "mkdtemp");
- goto out;
- }
-
- snprintf (initrd, initrd_len, "%s/initrd", dir);
- if (guestfs_download (g, path, initrd) == -1)
- goto out;
-
- snprintf (cmd, cmd_len,
- "cd %s && %s initrd | cpio --quiet -id " INITRD_BINARIES1,
- dir, method);
- int r = system (cmd);
- if (r == -1 || WEXITSTATUS (r) != 0) {
- perrorf (g, "cpio command failed");
- goto out;
- }
-
- const char *bins[] = INITRD_BINARIES2;
- size_t i;
- for (i = 0; i < sizeof bins / sizeof bins[0]; ++i) {
- snprintf (bin, bin_len, "%s/%s", dir, bins[i]);
-
- if (is_regular_file (bin)) {
- int flags = g->verbose ? MAGIC_DEBUG : 0;
- flags |= MAGIC_ERROR | MAGIC_RAW;
-
- magic_t m = magic_open (flags);
- if (m == NULL) {
- perrorf (g, "magic_open");
- goto out;
- }
-
- if (magic_load (m, NULL) == -1) {
- perrorf (g, "magic_load: default magic database file");
- magic_close (m);
- goto out;
- }
-
- const char *line = magic_file (m, bin);
- if (line == NULL) {
- perrorf (g, "magic_file: %s", bin);
- magic_close (m);
- goto out;
- }
-
- char *elf_arch;
- if ((elf_arch = match1 (g, line, re_file_elf)) != NULL) {
- ret = canonical_elf_arch (g, elf_arch);
- free (elf_arch);
- magic_close (m);
- goto out;
- }
- magic_close (m);
- }
- }
- error (g, "file_architecture: could not determine architecture of cpio archive");
-
- out:
- /* Free up the temporary directory. Note the directory name cannot
- * contain shell meta-characters because of the way it was
- * constructed above.
- */
- snprintf (cmd, cmd_len, "rm -rf %s", dir);
- ignore_value (system (cmd));
-
- return ret;
-#undef dir_len
-#undef initrd_len
-#undef cmd_len
-#undef bin_len
-}
-
-char *
-guestfs__file_architecture (guestfs_h *g, const char *path)
-{
- char *file = NULL;
- char *elf_arch = NULL;
- char *ret = NULL;
-
- /* Get the output of the "file" command. Note that because this
- * runs in the daemon, LANG=C so it's in English.
- */
- file = guestfs_file (g, path);
- if (file == NULL)
- return NULL;
-
- if ((elf_arch = match1 (g, file, re_file_elf)) != NULL)
- ret = canonical_elf_arch (g, elf_arch);
- else if (strstr (file, "PE32 executable"))
- ret = safe_strdup (g, "i386");
- else if (strstr (file, "PE32+ executable"))
- ret = safe_strdup (g, "x86_64");
- else if (strstr (file, "cpio archive"))
- ret = cpio_arch (g, file, path);
- else
- error (g, "file_architecture: unknown architecture: %s", path);
-
- free (file);
- free (elf_arch);
- return ret; /* caller frees */
-}
-
/* The main inspection code. */
-static int feature_available (guestfs_h *g, const char *feature);
-static void free_string_list (char **);
-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) {
- free_string_list (devices);
+ if (check_for_filesystem_on (g, devices[i], 1, 0) == -1) {
+ guestfs___free_string_list (devices);
guestfs___free_inspect_info (g);
return NULL;
}
}
- free_string_list (devices);
+ guestfs___free_string_list (devices);
/* Look at all partitions. */
char **partitions;
}
for (i = 0; partitions[i] != NULL; ++i) {
- if (check_for_filesystem_on (g, partitions[i]) == -1) {
- free_string_list (partitions);
+ if (check_for_filesystem_on (g, partitions[i], 0, i+1) == -1) {
+ guestfs___free_string_list (partitions);
guestfs___free_inspect_info (g);
return NULL;
}
}
- free_string_list (partitions);
+ guestfs___free_string_list (partitions);
/* Look at all LVs. */
- if (feature_available (g, "lvm2")) {
+ if (guestfs___feature_available (g, "lvm2")) {
char **lvs;
lvs = guestfs_lvs (g);
if (lvs == NULL) {
}
for (i = 0; lvs[i] != NULL; ++i) {
- if (check_for_filesystem_on (g, lvs[i]) == -1) {
- free_string_list (lvs);
+ if (check_for_filesystem_on (g, lvs[i], 0, 0) == -1) {
+ guestfs___free_string_list (lvs);
guestfs___free_inspect_info (g);
return NULL;
}
}
- free_string_list (lvs);
+ guestfs___free_string_list (lvs);
}
/* 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.
*/
- size_t count = 0;
- for (i = 0; i < g->nr_fses; ++i)
- if (g->fses[i].is_root)
- count++;
-
- char **ret = calloc (count+1, sizeof (char *));
- if (ret == NULL) {
- perrorf (g, "calloc");
+ char **ret = guestfs__inspect_get_roots (g);
+ if (ret == NULL)
guestfs___free_inspect_info (g);
- return NULL;
- }
-
- count = 0;
- for (i = 0; i < g->nr_fses; ++i) {
- if (g->fses[i].is_root) {
- ret[count] = safe_strdup (g, g->fses[i].device);
- count++;
- }
- }
- ret[count] = NULL;
-
return ret;
}
-void
-guestfs___free_inspect_info (guestfs_h *g)
-{
- size_t i;
- for (i = 0; i < g->nr_fses; ++i) {
- free (g->fses[i].device);
- free (g->fses[i].product_name);
- free (g->fses[i].arch);
- free (g->fses[i].windows_systemroot);
- size_t j;
- for (j = 0; j < g->fses[i].nr_fstab; ++j) {
- free (g->fses[i].fstab[j].device);
- free (g->fses[i].fstab[j].mountpoint);
- }
- free (g->fses[i].fstab);
- }
- free (g->fses);
- g->nr_fses = 0;
- g->fses = NULL;
-}
-
-static void
-free_string_list (char **argv)
-{
- size_t i;
- for (i = 0; argv[i] != NULL; ++i)
- free (argv[i]);
- free (argv);
-}
-
-/* In the Perl code this is a public function. */
-static int
-feature_available (guestfs_h *g, const char *feature)
-{
- /* 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;
-
- const char *groups[] = { feature, NULL };
- int r = guestfs_available (g, (char * const *) groups);
-
- g->error_cb = old_error_cb;
-
- return r == 0 ? 1 : 0;
-}
-
/* Find out if 'device' contains a filesystem. If it does, add
* another entry in g->fses.
*/
-static int check_filesystem (guestfs_h *g, const char *device);
+static int check_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 char *resolve_windows_path_silently (guestfs_h *g, const char *);
+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, const char *basename, 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->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 (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
+ else if (is_dir_etc &&
+ is_dir_bin &&
guestfs_is_file (g, "/etc/fstab") > 0) {
fs->is_root = 1;
fs->content = FS_CONTENT_LINUX_ROOT;
+ fs->format = OS_FORMAT_INSTALLED;
if (check_linux_root (g, fs) == -1)
return -1;
}
/* Linux /usr/local? */
- else if (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
- guestfs_is_dir (g, "/share") > 0 &&
+ else if (is_dir_etc &&
+ is_dir_bin &&
+ is_dir_share &&
guestfs_exists (g, "/local") == 0 &&
guestfs_is_file (g, "/etc/fstab") == 0)
fs->content = FS_CONTENT_LINUX_USR_LOCAL;
/* Linux /usr? */
- else if (guestfs_is_dir (g, "/etc") > 0 &&
- guestfs_is_dir (g, "/bin") > 0 &&
- guestfs_is_dir (g, "/share") > 0 &&
+ else if (is_dir_etc &&
+ is_dir_bin &&
+ is_dir_share &&
guestfs_exists (g, "/local") > 0 &&
guestfs_is_file (g, "/etc/fstab") == 0)
fs->content = FS_CONTENT_LINUX_USR;
guestfs_is_dir (g, "/run") > 0 &&
guestfs_is_dir (g, "/spool") > 0)
fs->content = FS_CONTENT_LINUX_VAR;
- /* Windows root? */
- else if (guestfs_is_file (g, "/AUTOEXEC.BAT") > 0 ||
- guestfs_is_file (g, "/autoexec.bat") > 0 ||
- guestfs_is_dir (g, "/Program Files") > 0 ||
- guestfs_is_dir (g, "/WINDOWS") > 0 ||
- guestfs_is_dir (g, "/Windows") > 0 ||
- guestfs_is_dir (g, "/windows") > 0 ||
- guestfs_is_dir (g, "/WIN32") > 0 ||
- guestfs_is_dir (g, "/Win32") > 0 ||
- guestfs_is_dir (g, "/WINNT") > 0 ||
- guestfs_is_file (g, "/boot.ini") > 0 ||
- guestfs_is_file (g, "/ntldr") > 0) {
+ /* 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;
}
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)
+ fs->product_name = first_line_of_file (g, release_filename);
+ if (fs->product_name == NULL)
return -1;
- if (product_name[0] == NULL) {
- error (g, "%s: file is empty", release_filename);
- free_string_list (product_name);
- return -1;
- }
-
- /* Note that this string becomes owned by the handle and will
- * be freed by guestfs___free_inspect_info.
- */
- fs->product_name = product_name[0];
- free (product_name);
-
return 0;
}
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
static int
check_linux_root (guestfs_h *g, struct inspect_fs *fs)
{
+ int r;
+
fs->type = OS_TYPE_LINUX;
- if (guestfs_exists (g, "/etc/redhat-release") > 0) {
- fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */
+ 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;
* determine the actual release or product string.
*/
}
+ else if (guestfs_exists (g, "/etc/gentoo-release") > 0) {
+ fs->distro = OS_DISTRO_GENTOO;
- /* Determine the architecture. */
- const char *binaries[] =
- { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" };
- size_t i;
- for (i = 0; i < sizeof binaries / sizeof binaries[0]; ++i) {
- if (guestfs_is_file (g, binaries[i]) > 0) {
- /* Ignore errors from file_architecture call. */
- guestfs_error_handler_cb old_error_cb = g->error_cb;
- g->error_cb = NULL;
- char *arch = guestfs_file_architecture (g, binaries[i]);
- g->error_cb = old_error_cb;
+ if (parse_release_file (g, fs, "/etc/gentoo-release") == -1)
+ return -1;
- if (arch) {
- /* String will be owned by handle, freed by
- * guestfs___free_inspect_info.
- */
- fs->arch = arch;
- break;
- }
- }
+ 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.
- * XXX What if !feature_available (g, "augeas")?
*/
- if (guestfs_aug_init (g, "/", AUG_NO_LOAD|AUG_SAVE_NOOP) == -1)
+ if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
return -1;
- /* Tell Augeas to only load /etc/fstab (thanks Raphaël Pinson). */
- guestfs_aug_rm (g, "/augeas/load//incl[. != \"/etc/fstab\"]");
- guestfs_aug_load (g);
-
- int r = check_fstab (g, fs);
- guestfs_aug_close (g);
- if (r == -1)
+ /* 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_fstab (guestfs_h *g, struct inspect_fs *fs)
+check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
{
- char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
- if (lines == NULL)
- return -1;
+ fs->type = OS_TYPE_FREEBSD;
- if (lines[0] == NULL) {
- error (g, "could not parse /etc/fstab or empty file");
- free_string_list (lines);
- return -1;
- }
+ /* 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.
+ */
- size_t i;
- char augpath[256];
- for (i = 0; lines[i] != NULL; ++i) {
- /* Ignore comments. Only care about sequence lines which
- * match m{/\d+$}.
- */
- if (match (g, lines[i], re_aug_seq)) {
- snprintf (augpath, sizeof augpath, "%s/spec", lines[i]);
- char *spec = guestfs_aug_get (g, augpath);
- if (spec == NULL) {
- free_string_list (lines);
- return -1;
- }
+ if (guestfs_exists (g, "/etc/motd") > 0) {
+ if (parse_release_file (g, fs, "/etc/motd") == -1)
+ return -1;
- snprintf (augpath, sizeof augpath, "%s/file", lines[i]);
- char *mp = guestfs_aug_get (g, augpath);
- if (mp == NULL) {
- free_string_list (lines);
- free (spec);
- return -1;
- }
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
+ }
- int r = add_fstab_entry (g, fs, spec, mp);
- free (spec);
- free (mp);
+ /* Determine the architecture. */
+ check_architecture (g, fs);
- if (r == -1) {
- free_string_list (lines);
- return -1;
- }
- }
- }
+ /* 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;
- free_string_list (lines);
return 0;
}
-/* Add a filesystem and possibly a mountpoint entry for
- * the root filesystem 'fs'.
+/* Debian/Ubuntu install disks are easy ...
*
- * 'spec' is the fstab spec field, which might be a device name or a
- * pseudodevice or 'UUID=...' or 'LABEL=...'.
+ * 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'
*
- * 'mp' is the mount point, which could also be 'swap' or 'none'.
+ * 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
-add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
- const char *spec, const char *mp)
+check_debian_installer_root (guestfs_h *g, struct inspect_fs *fs)
{
- /* 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;
+ fs->product_name = first_line_of_file (g, "/.disk/info");
+ if (!fs->product_name)
+ return -1;
- /* 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);
+ 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;
- /* If we haven't resolved the device successfully by this point,
- * we don't care, just ignore it.
- */
- if (device == NULL)
- return 0;
+ (void) parse_major_minor (g, fs);
- char *mountpoint = safe_strdup (g, mp);
+ 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;
- /* 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;
+ 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;
+ }
- p = realloc (fs->fstab, n * sizeof (struct inspect_fstab_entry));
- if (p == NULL) {
- perrorf (g, "realloc");
- free (device);
- free (mountpoint);
- return -1;
+ free (cd_type);
}
- fs->fstab = p;
- fs->nr_fstab = n;
-
- /* These are owned by the handle and freed by guestfs___free_inspect_info. */
- fs->fstab[n-1].device = device;
- fs->fstab[n-1].mountpoint = mountpoint;
-
- if (g->verbose)
- fprintf (stderr, "fstab: device=%s mountpoint=%s\n", device, mountpoint);
-
return 0;
}
-/* 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.
+/* 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 char *
-resolve_fstab_device (guestfs_h *g, const char *spec)
+static const char *
+find_value (const char *kv)
{
- char *a1;
- char *device = NULL;
-
- 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++)
- ;
+ const char *p;
- 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]);
- }
+ p = strchr (kv, '=');
+ if (!p)
+ abort ();
- free (a1);
- free_string_list (devices);
- }
- else {
- /* Didn't match device pattern, return original spec unchanged. */
- device = safe_strdup (g, spec);
- }
+ do {
+ ++p;
+ } while (c_isspace (*p));
- return device;
+ return p;
}
-/* 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.
+/* 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_windows_root (guestfs_h *g, struct inspect_fs *fs)
+check_fedora_installer_root (guestfs_h *g, struct inspect_fs *fs)
{
- fs->type = OS_TYPE_WINDOWS;
- fs->distro = OS_DISTRO_WINDOWS;
+ char *str;
+ const char *v;
+ int r;
+ int discnum = 0, totaldiscs = 0;
- /* 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 = resolve_windows_path_silently (g, systemroots[i]);
+ 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);
}
- if (!systemroot) {
- error (g, _("cannot resolve Windows %%SYSTEMROOT%%"));
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^family = Red Hat Enterprise Linux$", 0, &str);
+ if (r == -1)
return -1;
+ if (r > 0) {
+ fs->distro = OS_DISTRO_RHEL;
+ free (str);
}
- if (g->verbose)
- fprintf (stderr, "windows %%SYSTEMROOT%% = %s", systemroot);
+ /* XXX should do major.minor before this */
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^version = [[:digit:]]+", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ v = find_value (str);
+ fs->major_version = parse_unsigned_int_ignore_trailing (g, v);
+ free (str);
+ if (fs->major_version == -1)
+ return -1;
+ }
- /* Freed by guestfs___free_inspect_info. */
- fs->windows_systemroot = systemroot;
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^arch = [-_[:alnum:]]+$", 0, &str);
+ if (r == -1)
+ return -1;
+ if (r > 0) {
+ v = find_value (str);
+ fs->arch = safe_strdup (g, v);
+ free (str);
+ }
- if (check_windows_arch (g, fs) == -1)
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^discnum = [[:digit:]]+$", 0, &str);
+ if (r == -1)
return -1;
+ if (r > 0) {
+ v = find_value (str);
+ discnum = parse_unsigned_int (g, v);
+ free (str);
+ if (discnum == -1)
+ return -1;
+ }
- if (check_windows_registry (g, fs) == -1)
+ r = first_egrep_of_file (g, "/.treeinfo",
+ "^totaldiscs = [[:digit:]]+$", 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_windows_arch (guestfs_h *g, struct inspect_fs *fs)
+check_isolinux_installer_root (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 = resolve_windows_path_silently (g, cmd_exe);
- if (!cmd_exe_path)
- return 0;
+ char *str;
+ int r;
- char *arch = guestfs_file_architecture (g, cmd_exe_path);
- free (cmd_exe_path);
+ fs->type = OS_TYPE_LINUX;
- if (arch)
- fs->arch = arch; /* freed by guestfs___free_inspect_info */
+ 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;
+ }
- return 0;
+ /* 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)
+{
+ const char *basename = "software";
+ char tmpdir_basename[strlen (g->tmpdir) + strlen (basename) + 2];
+ snprintf (tmpdir_basename, sizeof tmpdir_basename, "%s/%s",
+ g->tmpdir, basename);
+
+ 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, basename, MAX_REGISTRY_SIZE) == -1)
+ goto out;
+
+ h = hivex_open (tmpdir_basename, 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);
+
+ return ret;
+}
+
+static int
+check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs)
+{
+ const char *basename = "system";
+ char tmpdir_basename[strlen (g->tmpdir) + strlen (basename) + 2];
+ snprintf (tmpdir_basename, sizeof tmpdir_basename, "%s/%s",
+ g->tmpdir, basename);
+
+ 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, basename, MAX_REGISTRY_SIZE) == -1)
+ goto out;
+
+ h = hivex_open (tmpdir_basename, 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);
+
+ 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;
+}
+
+char **
+guestfs__inspect_get_roots (guestfs_h *g)
+{
+ /* NB. Doesn't matter if g->nr_fses == 0. We just return an empty
+ * list in this case.
+ */
+
+ size_t i;
+ size_t count = 0;
+ for (i = 0; i < g->nr_fses; ++i)
+ if (g->fses[i].is_root)
+ count++;
+
+ char **ret = calloc (count+1, sizeof (char *));
+ if (ret == NULL) {
+ perrorf (g, "calloc");
+ return NULL;
+ }
+
+ count = 0;
+ for (i = 0; i < g->nr_fses; ++i) {
+ if (g->fses[i].is_root) {
+ ret[count] = safe_strdup (g, g->fses[i].device);
+ count++;
+ }
+ }
+ ret[count] = NULL;
+
+ return ret;
+}
+
+char *
+guestfs__inspect_get_type (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ char *ret;
+ switch (fs->type) {
+ case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
+ case OS_TYPE_WINDOWS: ret = safe_strdup (g, "windows"); break;
+ case OS_TYPE_FREEBSD: ret = safe_strdup (g, "freebsd"); break;
+ case OS_TYPE_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
+ }
+
+ return ret;
+}
+
+char *
+guestfs__inspect_get_arch (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ return safe_strdup (g, fs->arch ? : "unknown");
+}
+
+char *
+guestfs__inspect_get_distro (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = 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_DEBIAN: ret = safe_strdup (g, "debian"); break;
+ case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
+ case OS_DISTRO_GENTOO: ret = safe_strdup (g, "gentoo"); break;
+ case OS_DISTRO_LINUX_MINT: ret = safe_strdup (g, "linuxmint"); break;
+ case OS_DISTRO_MANDRIVA: ret = safe_strdup (g, "mandriva"); break;
+ case OS_DISTRO_MEEGO: ret = safe_strdup (g, "meego"); break;
+ case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
+ case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
+ case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); 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;
+ case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
+ }
+
+ return ret;
+}
+
+int
+guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return -1;
+
+ return fs->major_version;
+}
+
+int
+guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return -1;
+
+ return fs->minor_version;
+}
+
+char *
+guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ return safe_strdup (g, fs->product_name ? : "unknown");
+}
+
+char *
+guestfs__inspect_get_product_variant (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ return safe_strdup (g, fs->product_variant ? : "unknown");
+}
+
+char *
+guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ if (!fs->windows_systemroot) {
+ error (g, _("not a Windows guest, or systemroot could not be determined"));
+ return NULL;
+ }
+
+ return safe_strdup (g, fs->windows_systemroot);
+}
+
+char *
+guestfs__inspect_get_windows_current_control_set (guestfs_h *g,
+ const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ if (!fs->windows_current_control_set) {
+ error (g, _("not a Windows guest, or CurrentControlSet could not be determined"));
+ return NULL;
+ }
+
+ return safe_strdup (g, fs->windows_current_control_set);
+}
+
+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)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ char **ret;
+
+ /* If no fstab information (Windows) return just the root. */
+ if (fs->nr_fstab == 0) {
+ ret = calloc (3, sizeof (char *));
+ ret[0] = safe_strdup (g, "/");
+ ret[1] = safe_strdup (g, root);
+ ret[2] = NULL;
+ return ret;
+ }
+
+#define CRITERION fs->fstab[i].mountpoint[0] == '/'
+ size_t i, count = 0;
+ for (i = 0; i < fs->nr_fstab; ++i)
+ if (CRITERION)
+ count++;
+
+ /* Hashtables have 2N+1 entries. */
+ ret = calloc (2*count+1, sizeof (char *));
+ if (ret == NULL) {
+ perrorf (g, "calloc");
+ return NULL;
+ }
+
+ count = 0;
+ for (i = 0; i < fs->nr_fstab; ++i)
+ if (CRITERION) {
+ ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint);
+ ret[2*count+1] = safe_strdup (g, fs->fstab[i].device);
+ count++;
+ }
+#undef CRITERION
+
+ return ret;
+}
+
+char **
+guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ char **ret;
+
+ /* If no fstab information (Windows) return just the root. */
+ if (fs->nr_fstab == 0) {
+ ret = calloc (2, sizeof (char *));
+ ret[0] = safe_strdup (g, root);
+ ret[1] = NULL;
+ return ret;
+ }
+
+ ret = calloc (fs->nr_fstab + 1, sizeof (char *));
+ if (ret == NULL) {
+ perrorf (g, "calloc");
+ return NULL;
+ }
+
+ size_t i;
+ for (i = 0; i < fs->nr_fstab; ++i)
+ ret[i] = safe_strdup (g, fs->fstab[i].device);
+
+ return ret;
+}
+
+char **
+guestfs__inspect_get_drive_mappings (guestfs_h *g, const char *root)
+{
+ char **ret;
+ size_t i, count;
+ struct inspect_fs *fs;
+
+ fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ /* If no drive mappings, return an empty hashtable. */
+ if (!fs->drive_mappings)
+ count = 0;
+ else {
+ for (count = 0; fs->drive_mappings[count] != NULL; count++)
+ ;
+ }
+
+ ret = calloc (count+1, sizeof (char *));
+ if (ret == NULL) {
+ perrorf (g, "calloc");
+ return NULL;
+ }
+
+ /* We need to make a deep copy of the hashtable since the caller
+ * will free it.
+ */
+ for (i = 0; i < count; ++i)
+ ret[i] = safe_strdup (g, fs->drive_mappings[i]);
+
+ ret[count] = NULL;
+
+ return ret;
+}
+
+char *
+guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ char *ret;
+ switch (fs->package_format) {
+ case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break;
+ case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break;
+ case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break;
+ case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break;
+ case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break;
+ case OS_PACKAGE_FORMAT_UNKNOWN:
+ default:
+ ret = safe_strdup (g, "unknown");
+ break;
+ }
+
+ return ret;
+}
+
+char *
+guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
+{
+ struct inspect_fs *fs = search_for_root (g, root);
+ if (!fs)
+ return NULL;
+
+ char *ret;
+ switch (fs->package_management) {
+ case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break;
+ case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break;
+ case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break;
+ case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
+ case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
+ case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
+ case OS_PACKAGE_MANAGEMENT_URPMI: ret = safe_strdup (g, "urpmi"); break;
+ case OS_PACKAGE_MANAGEMENT_UNKNOWN:
+ default:
+ ret = safe_strdup (g, "unknown");
+ break;
+ }
+
+ 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);
+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.
+ */
+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)
+{
+ const char *basename = "rpm_Name";
+ char tmpdir_basename[strlen (g->tmpdir) + strlen (basename) + 2];
+ snprintf (tmpdir_basename, sizeof tmpdir_basename, "%s/%s",
+ g->tmpdir, basename);
+
+ if (download_to_tmp (g, "/var/lib/rpm/Name", basename, MAX_PKG_DB_SIZE) == -1)
+ return NULL;
+
+ struct guestfs_application_list *apps = NULL, *ret = NULL;
+#define cmd_len (strlen (tmpdir_basename) + 64)
+ char cmd[cmd_len];
+ FILE *pp = NULL;
+ char line[1024];
+ size_t len;
+
+ snprintf (cmd, cmd_len, DB_DUMP " -p '%s'", tmpdir_basename);
+
+ 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);
+
+ return ret;
+}
+#endif /* defined DB_DUMP */
+
+static struct guestfs_application_list *
+list_applications_deb (guestfs_h *g, struct inspect_fs *fs)
+{
+ const char *basename = "deb_status";
+ char tmpdir_basename[strlen (g->tmpdir) + strlen (basename) + 2];
+ snprintf (tmpdir_basename, sizeof tmpdir_basename, "%s/%s",
+ g->tmpdir, basename);
+
+ if (download_to_tmp (g, "/var/lib/dpkg/status", basename,
+ 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 (tmpdir_basename, "r");
+ if (fp == NULL) {
+ perrorf (g, "fopen: %s", tmpdir_basename);
+ 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;
+ }
+ }
+
+ if (fclose (fp) == -1) {
+ perrorf (g, "fclose: %s", tmpdir_basename);
+ goto out;
+ }
+ 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);
+ return ret;
}
-/* 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_registry (guestfs_h *g, struct inspect_fs *fs)
+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 (dir);
-#define dir_len (strlen (dir))
-#define software_hive_len (dir_len + 16)
- char software_hive[software_hive_len];
-#define cmd_len (dir_len + 16)
- char cmd[cmd_len];
+ const char *basename = "software";
+ char tmpdir_basename[strlen (g->tmpdir) + strlen (basename) + 2];
+ snprintf (tmpdir_basename, sizeof tmpdir_basename, "%s/%s",
+ g->tmpdir, basename);
size_t len = strlen (fs->windows_systemroot) + 64;
char software[len];
snprintf (software, len, "%s/system32/config/software",
fs->windows_systemroot);
- char *software_path = resolve_windows_path_silently (g, software);
+ 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.
+ * list windows apps.
*/
return 0;
- int ret = -1;
+ struct guestfs_application_list *ret = NULL;
hive_h *h = NULL;
- hive_value_h *values = NULL;
- if (mkdtemp (dir) == NULL) {
- perrorf (g, "mkdtemp");
+ if (download_to_tmp (g, software_path, basename, MAX_REGISTRY_SIZE) == -1)
goto out;
- }
-
- snprintf (software_hive, software_hive_len, "%s/software", dir);
- if (guestfs_download (g, software_path, software_hive) == -1)
- goto out;
+ free (software_path);
+ software_path = NULL;
- h = hivex_open (software_hive, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
+ h = hivex_open (tmpdir_basename, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
if (h == NULL) {
perrorf (g, "hivex_open");
goto out;
}
- hive_node_h node = hivex_root (h);
+ /* Allocate apps list. */
+ ret = safe_malloc (g, sizeof *ret);
+ ret->len = 0;
+ ret->val = NULL;
+
+ /* Ordinary native applications. */
const char *hivepath[] =
- { "Microsoft", "Windows NT", "CurrentVersion" };
+ { "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);
+
+ 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;
- 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;
- }
+ node = hivex_root (h);
- values = hivex_node_values (h, node);
+ for (i = 0; node != 0 && i < path_len; ++i)
+ node = hivex_node_get_child (h, node, path[i]);
- 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 (node == 0)
+ return;
- 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);
- return -1;
- }
- }
+ children = hivex_node_children (h, node);
+ if (children == NULL)
+ return;
- free (version);
+ /* 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 (key);
+ free (name);
+ free (display_name);
+ free (version);
+ free (install_path);
+ free (publisher);
+ free (url);
+ free (comments);
}
- ret = 0;
-
- out:
- if (h) hivex_close (h);
- free (values);
- free (software_path);
+ free (children);
+}
- /* Free up the temporary directory. Note the directory name cannot
- * contain shell meta-characters because of the way it was
- * constructed above.
+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.
*/
- snprintf (cmd, cmd_len, "rm -rf %s", dir);
- ignore_value (system (cmd));
-#undef dir_len
-#undef software_hive_len
-#undef cmd_len
+ 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);
+}
- return ret;
+/* 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 char *
-resolve_windows_path_silently (guestfs_h *g, const char *path)
+static void
+sort_applications (struct guestfs_application_list *apps)
{
- 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;
+ if (apps && apps->val)
+ qsort (apps->val, apps->len, sizeof (struct guestfs_application),
+ compare_applications);
}
+/* 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.
+ */
static int
-extend_fses (guestfs_h *g)
+download_to_tmp (guestfs_h *g, const char *filename,
+ const char *basename, int64_t max_size)
{
- size_t n = g->nr_fses + 1;
- struct inspect_fs *p;
+ int tmpdirfd, fd, r = -1;
+ char buf[32];
+ int64_t size;
- p = realloc (g->fses, n * sizeof (struct inspect_fs));
- if (p == NULL) {
- perrorf (g, "realloc");
+ tmpdirfd = open (g->tmpdir, O_RDONLY);
+ if (tmpdirfd == -1) {
+ perrorf (g, _("%s: temporary directory not found"), g->tmpdir);
return -1;
}
- g->fses = p;
- g->nr_fses = n;
+ /* If the file has already been downloaded, return. */
+ if (faccessat (tmpdirfd, basename, R_OK, 0) == 0) {
+ r = 0;
+ goto out;
+ }
- memset (&g->fses[n-1], 0, sizeof (struct inspect_fs));
+ /* Check size of remote file. */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ goto out;
+ if (size > max_size) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ goto out;
+ }
- return 0;
+ fd = openat (tmpdirfd, basename, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY, 0600);
+ if (fd == -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);
+ goto out;
+ }
+
+ if (close (fd) == -1) {
+ perrorf (g, "close: %s/%s", g->tmpdir, basename);
+ unlinkat (tmpdirfd, basename, 0);
+ goto out;
+ }
+
+ r = 0;
+ out:
+ if (tmpdirfd >= 0)
+ close (tmpdirfd);
+
+ return r;
}
-/* Parse small, unsigned ints, as used in version numbers. */
+/* 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
-parse_unsigned_int (guestfs_h *g, const char *str)
+inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename,
+ int (*f) (guestfs_h *, struct inspect_fs *))
{
- long ret;
- int r = xstrtol (str, NULL, 10, &ret, "");
- if (r != LONGINT_OK) {
- error (g, "could not parse integer in version number: %s", str);
+ /* 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;
}
- return ret;
+
+ /* 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;
}
-static struct inspect_fs *
-search_for_root (guestfs_h *g, const char *root)
+/* 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)
{
- if (g->nr_fses == 0) {
- error (g, _("no inspection data: call guestfs_inspect_os first"));
+ 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;
}
- 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;
+ 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 ... */
- error (g, _("%s: root device not found: only call this function with a root device previously returned by guestfs_inspect_os"),
- root);
- return NULL;
+ ret = lines[0]; /* caller frees */
+ free (lines); /* free the array */
+
+ return ret;
}
-char *
-guestfs__inspect_get_type (guestfs_h *g, const char *root)
+/* 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)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
+ char **lines;
+ int64_t size;
+ size_t i;
- char *ret;
- switch (fs->type) {
- case OS_TYPE_LINUX: ret = safe_strdup (g, "linux"); break;
- case OS_TYPE_WINDOWS: ret = safe_strdup (g, "windows"); break;
- case OS_TYPE_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
+ /* 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;
}
- return ret;
+ 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;
}
-char *
-guestfs__inspect_get_arch (guestfs_h *g, const char *root)
-{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
+#else /* no PCRE or hivex at compile time */
- return safe_strdup (g, fs->arch ? : "unknown");
+/* XXX These functions should be in an optgroup. */
+
+#define NOT_IMPL(r) \
+ error (g, _("inspection API not available since this version of libguestfs was compiled without PCRE or hivex libraries")); \
+ return r
+
+char **
+guestfs__inspect_os (guestfs_h *g)
+{
+ NOT_IMPL(NULL);
}
-char *
-guestfs__inspect_get_distro (guestfs_h *g, const char *root)
+char **
+guestfs__inspect_get_roots (guestfs_h *g)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
+ NOT_IMPL(NULL);
+}
- char *ret;
- switch (fs->distro) {
- case OS_DISTRO_ARCHLINUX: ret = safe_strdup (g, "archlinux"); break;
- case OS_DISTRO_DEBIAN: ret = safe_strdup (g, "debian"); break;
- case OS_DISTRO_FEDORA: ret = safe_strdup (g, "fedora"); break;
- case OS_DISTRO_PARDUS: ret = safe_strdup (g, "pardus"); break;
- case OS_DISTRO_REDHAT_BASED: ret = safe_strdup (g, "redhat-based"); break;
- case OS_DISTRO_RHEL: ret = safe_strdup (g, "rhel"); break;
- case OS_DISTRO_WINDOWS: ret = safe_strdup (g, "windows"); break;
- case OS_DISTRO_UNKNOWN: default: ret = safe_strdup (g, "unknown"); break;
- }
+char *
+guestfs__inspect_get_type (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
- return ret;
+char *
+guestfs__inspect_get_arch (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
+char *
+guestfs__inspect_get_distro (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
}
int
guestfs__inspect_get_major_version (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return -1;
-
- return fs->major_version;
+ NOT_IMPL(-1);
}
int
guestfs__inspect_get_minor_version (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return -1;
-
- return fs->minor_version;
+ NOT_IMPL(-1);
}
char *
guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
+ NOT_IMPL(NULL);
+}
- return safe_strdup (g, fs->product_name ? : "unknown");
+char *
+guestfs__inspect_get_product_variant (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
}
char *
guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
-
- if (!fs->windows_systemroot) {
- error (g, _("not a Windows guest, or systemroot could not be determined"));
- return NULL;
- }
+ NOT_IMPL(NULL);
+}
- return safe_strdup (g, fs->windows_systemroot);
+char *
+guestfs__inspect_get_windows_current_control_set (guestfs_h *g,
+ const char *root)
+{
+ NOT_IMPL(NULL);
}
char **
guestfs__inspect_get_mountpoints (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
-
- char **ret;
-
- /* If no fstab information (Windows) return just the root. */
- if (fs->nr_fstab == 0) {
- ret = calloc (3, sizeof (char *));
- ret[0] = safe_strdup (g, "/");
- ret[1] = safe_strdup (g, root);
- ret[2] = NULL;
- return ret;
- }
-
-#define CRITERION fs->fstab[i].mountpoint[0] == '/'
- size_t i, count = 0;
- for (i = 0; i < fs->nr_fstab; ++i)
- if (CRITERION)
- count++;
+ NOT_IMPL(NULL);
+}
- /* Hashtables have 2N+1 entries. */
- ret = calloc (2*count+1, sizeof (char *));
- if (ret == NULL) {
- perrorf (g, "calloc");
- return NULL;
- }
+char **
+guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
- count = 0;
- for (i = 0; i < fs->nr_fstab; ++i)
- if (CRITERION) {
- ret[2*count] = safe_strdup (g, fs->fstab[i].mountpoint);
- ret[2*count+1] = safe_strdup (g, fs->fstab[i].device);
- count++;
- }
-#undef CRITERION
+char **
+guestfs__inspect_get_drive_mappings (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
- return ret;
+char *
+guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
}
-char **
-guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
+char *
+guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
{
- struct inspect_fs *fs = search_for_root (g, root);
- if (!fs)
- return NULL;
+ NOT_IMPL(NULL);
+}
- char **ret;
+char *
+guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
- /* If no fstab information (Windows) return just the root. */
- if (fs->nr_fstab == 0) {
- ret = calloc (2, sizeof (char *));
- ret[0] = safe_strdup (g, root);
- ret[1] = NULL;
- return ret;
- }
+struct guestfs_application_list *
+guestfs__inspect_list_applications (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
- ret = calloc (fs->nr_fstab + 1, sizeof (char *));
- if (ret == NULL) {
- perrorf (g, "calloc");
- return NULL;
- }
+char *
+guestfs__inspect_get_format (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
- size_t i;
- for (i = 0; i < fs->nr_fstab; ++i)
- ret[i] = safe_strdup (g, fs->fstab[i].device);
+int
+guestfs__inspect_is_live (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(-1);
+}
- return ret;
+int
+guestfs__inspect_is_netinst (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(-1);
}
-/* List filesystems.
- *
- * The current implementation just uses guestfs_vfs_type and doesn't
- * try mounting anything, but we reserve the right in future to try
- * mounting filesystems.
- */
+int
+guestfs__inspect_is_multipart (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(-1);
+}
-static void remove_from_list (char **list, const char *item);
-static void check_with_vfs_type (guestfs_h *g, const char *dev, char ***ret, size_t *ret_size);
+#endif /* no PCRE or hivex at compile time */
-char **
-guestfs__list_filesystems (guestfs_h *g)
+void
+guestfs___free_inspect_info (guestfs_h *g)
{
size_t i;
- char **ret;
- size_t ret_size;
-
- ret = safe_malloc (g, sizeof (char *));
- ret[0] = NULL;
- ret_size = 0;
+ for (i = 0; i < g->nr_fses; ++i) {
+ free (g->fses[i].device);
+ free (g->fses[i].product_name);
+ free (g->fses[i].product_variant);
+ free (g->fses[i].arch);
+ free (g->fses[i].hostname);
+ free (g->fses[i].windows_systemroot);
+ free (g->fses[i].windows_current_control_set);
+ size_t j;
+ for (j = 0; j < g->fses[i].nr_fstab; ++j) {
+ free (g->fses[i].fstab[j].device);
+ free (g->fses[i].fstab[j].mountpoint);
+ }
+ free (g->fses[i].fstab);
+ if (g->fses[i].drive_mappings)
+ guestfs___free_string_list (g->fses[i].drive_mappings);
+ }
+ free (g->fses);
+ g->nr_fses = 0;
+ g->fses = NULL;
+}
- /* Look to see if any devices directly contain filesystems
- * (RHBZ#590167). However vfs-type will fail to tell us anything
- * useful about devices which just contain partitions, so we also
- * get the list of partitions and exclude the corresponding devices
- * by using part-to-dev.
+/* In the Perl code this is a public function. */
+int
+guestfs___feature_available (guestfs_h *g, const char *feature)
+{
+ /* 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.
*/
- char **devices;
- devices = guestfs_list_devices (g);
- if (devices == NULL) {
- free_string_list (ret);
- return NULL;
- }
- char **partitions;
- partitions = guestfs_list_partitions (g);
- if (partitions == NULL) {
- free_string_list (devices);
- free_string_list (ret);
- return NULL;
- }
+ guestfs_error_handler_cb old_error_cb = g->error_cb;
+ g->error_cb = NULL;
- for (i = 0; partitions[i] != NULL; ++i) {
- char *dev = guestfs_part_to_dev (g, partitions[i]);
- if (dev)
- remove_from_list (devices, dev);
- free (dev);
- }
+ const char *groups[] = { feature, NULL };
+ int r = guestfs_available (g, (char * const *) groups);
- /* Use vfs-type to check for filesystems on devices. */
- for (i = 0; devices[i] != NULL; ++i)
- check_with_vfs_type (g, devices[i], &ret, &ret_size);
- free_string_list (devices);
+ g->error_cb = old_error_cb;
- /* Use vfs-type to check for filesystems on partitions. */
- for (i = 0; partitions[i] != NULL; ++i)
- check_with_vfs_type (g, partitions[i], &ret, &ret_size);
- free_string_list (partitions);
+ return r == 0 ? 1 : 0;
+}
- if (feature_available (g, "lvm2")) {
- /* Use vfs-type to check for filesystems on LVs. */
- char **lvs;
- lvs = guestfs_lvs (g);
- if (lvs == NULL) {
- free_string_list (ret);
- return NULL;
- }
+#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;
- for (i = 0; lvs[i] != NULL; ++i)
- check_with_vfs_type (g, lvs[i], &ret, &ret_size);
- free_string_list (lvs);
+ 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 ret;
+ return 1;
}
-/* If 'item' occurs in 'list', remove and free it. */
-static void
-remove_from_list (char **list, const char *item)
+/* 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 i;
+ size_t len = strlen (str);
+ int vec[30], r;
- for (i = 0; list[i] != NULL; ++i)
- if (STREQ (list[i], item)) {
- free (list[i]);
- for (; list[i+1] != NULL; ++i)
- list[i] = list[i+1];
- list[i] = NULL;
- return;
- }
+ 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]);
}
-/* Use vfs-type to look for a filesystem of some sort on 'dev'.
- * Apart from some types which we ignore, add the result to the
- * 'ret' string list.
- */
-static void
-check_with_vfs_type (guestfs_h *g, const char *device,
- char ***ret, size_t *ret_size)
+/* 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)
{
- char *v;
+ size_t len = strlen (str);
+ int vec[30], r;
- 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;
+ 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;
+ }
- if (!vfs_type)
- v = safe_strdup (g, "unknown");
- else {
- /* Ignore all "*_member" strings. In libblkid these are returned
- * for things which are members of some RAID or LVM set, most
- * importantly "LVM2_member" which is a PV.
- */
- size_t n = strlen (vfs_type);
- if (n >= 7 && STREQ (&vfs_type[n-7], "_member")) {
- free (vfs_type);
- return;
- }
+ *ret1 = safe_strndup (g, &str[vec[2]], vec[3]-vec[2]);
+ *ret2 = safe_strndup (g, &str[vec[4]], vec[5]-vec[4]);
- /* Ignore LUKS-encrypted partitions. These are also containers. */
- if (STREQ (vfs_type, "crypto_LUKS")) {
- free (vfs_type);
- return;
- }
+ return 1;
+}
- v = vfs_type;
+/* 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;
}
- /* Extend the return array. */
- size_t i = *ret_size;
- *ret_size += 2;
- *ret = safe_realloc (g, *ret, (*ret_size + 1) * sizeof (char *));
- (*ret)[i] = safe_strdup (g, device);
- (*ret)[i+1] = v;
- (*ret)[i+2] = NULL;
+ *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