+/* virt-inspector
+ * Copyright (C) 2010 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <assert.h>
+
+#include <libxml/xmlIO.h>
+#include <libxml/xmlwriter.h>
+
+#include "progname.h"
+#include "c-ctype.h"
+
+#include "guestfs.h"
+#include "options.h"
+
+/* Currently open libguestfs handle. */
+guestfs_h *g;
+
+int read_only = 1;
+int verbose = 0;
+int keys_from_stdin = 0;
+int echo_keys = 0;
+const char *libvirt_uri = NULL;
+int inspector = 1;
+
+static void output (char **roots);
+static void output_roots (xmlTextWriterPtr xo, char **roots);
+static void output_root (xmlTextWriterPtr xo, char *root);
+static void output_mountpoints (xmlTextWriterPtr xo, char *root);
+static void output_filesystems (xmlTextWriterPtr xo, char *root);
+static void output_applications (xmlTextWriterPtr xo, char *root);
+static void canonicalize (char *dev);
+static void free_strings (char **argv);
+static int count_strings (char *const*argv);
+
+static inline char *
+bad_cast (char const *s)
+{
+ return (char *) s;
+}
+
+static void __attribute__((noreturn))
+usage (int status)
+{
+ if (status != EXIT_SUCCESS)
+ fprintf (stderr, _("Try `%s --help' for more information.\n"),
+ program_name);
+ else {
+ fprintf (stdout,
+ _("%s: display information about a virtual machine\n"
+ "Copyright (C) 2010 Red Hat Inc.\n"
+ "Usage:\n"
+ " %s [--options] -d domname file [file ...]\n"
+ " %s [--options] -a disk.img [-a disk.img ...] file [file ...]\n"
+ "Options:\n"
+ " -a|--add image Add image\n"
+ " -c|--connect uri Specify libvirt URI for -d option\n"
+ " -d|--domain guest Add disks from libvirt guest\n"
+ " --echo-keys Don't turn off echo for passphrases\n"
+ " --format[=raw|..] Force disk format for -a option\n"
+ " --help Display brief help\n"
+ " --keys-from-stdin Read passphrases from stdin\n"
+ " -v|--verbose Verbose messages\n"
+ " -V|--version Display version and exit\n"
+ " -x Echo each command before executing it\n"
+ "For more information, see the manpage %s(1).\n"),
+ program_name, program_name, program_name,
+ program_name);
+ }
+ exit (status);
+}
+
+int
+main (int argc, char *argv[])
+{
+ /* Set global program name that is not polluted with libtool artifacts. */
+ set_program_name (argv[0]);
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEBASEDIR);
+ textdomain (PACKAGE);
+
+ enum { HELP_OPTION = CHAR_MAX + 1 };
+
+ static const char *options = "a:c:d:vVx";
+ static const struct option long_options[] = {
+ { "add", 1, 0, 'a' },
+ { "connect", 1, 0, 'c' },
+ { "domain", 1, 0, 'd' },
+ { "echo-keys", 0, 0, 0 },
+ { "format", 2, 0, 0 },
+ { "help", 0, 0, HELP_OPTION },
+ { "keys-from-stdin", 0, 0, 0 },
+ { "verbose", 0, 0, 'v' },
+ { "version", 0, 0, 'V' },
+ { 0, 0, 0, 0 }
+ };
+ struct drv *drvs = NULL;
+ struct drv *drv;
+ char *p, *file = NULL;
+ const char *format = NULL;
+ int c;
+ int option_index;
+ int next_prepared_drive = 1;
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ fprintf (stderr, _("guestfs_create: failed to create handle\n"));
+ exit (EXIT_FAILURE);
+ }
+
+ argv[0] = bad_cast (program_name);
+
+ for (;;) {
+ c = getopt_long (argc, argv, options, long_options, &option_index);
+ if (c == -1) break;
+
+ switch (c) {
+ case 0: /* options which are long only */
+ if (STREQ (long_options[option_index].name, "keys-from-stdin")) {
+ keys_from_stdin = 1;
+ } else if (STREQ (long_options[option_index].name, "echo-keys")) {
+ echo_keys = 1;
+ } else if (STREQ (long_options[option_index].name, "format")) {
+ if (!optarg || STREQ (optarg, ""))
+ format = NULL;
+ else
+ format = optarg;
+ } else {
+ fprintf (stderr, _("%s: unknown long option: %s (%d)\n"),
+ program_name, long_options[option_index].name, option_index);
+ exit (EXIT_FAILURE);
+ }
+ break;
+
+ case 'a':
+ OPTION_a;
+ break;
+
+ case 'c':
+ OPTION_c;
+ break;
+
+ case 'd':
+ OPTION_d;
+ break;
+
+ case 'h':
+ usage (EXIT_SUCCESS);
+
+ case 'v':
+ OPTION_v;
+ break;
+
+ case 'V':
+ OPTION_V;
+ break;
+
+ case 'x':
+ OPTION_x;
+ break;
+
+ case HELP_OPTION:
+ usage (EXIT_SUCCESS);
+
+ default:
+ usage (EXIT_FAILURE);
+ }
+ }
+
+ /* Old-style syntax? There were no -a or -d options in the old
+ * virt-inspector which is how we detect this.
+ */
+ if (drvs == NULL) {
+ while (optind < argc) {
+ if (strchr (argv[optind], '/') ||
+ access (argv[optind], F_OK) == 0) { /* simulate -a option */
+ drv = malloc (sizeof (struct drv));
+ if (!drv) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ drv->type = drv_a;
+ drv->a.filename = argv[optind];
+ drv->a.format = NULL;
+ drv->next = drvs;
+ drvs = drv;
+ } else { /* simulate -d option */
+ drv = malloc (sizeof (struct drv));
+ if (!drv) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ drv->type = drv_d;
+ drv->d.guest = argv[optind];
+ drv->next = drvs;
+ drvs = drv;
+ }
+
+ optind++;
+ }
+ }
+
+ /* These are really constants, but they have to be variables for the
+ * options parsing code. Assert here that they have known-good
+ * values.
+ */
+ assert (read_only == 1);
+ assert (inspector == 1);
+
+ /* Must be no extra arguments on the command line. */
+ if (optind != argc)
+ usage (EXIT_FAILURE);
+
+ /* User must have specified some drives. */
+ if (drvs == NULL)
+ usage (EXIT_FAILURE);
+
+ /* Add drives, inspect and mount. Note that inspector is always true,
+ * and there is no -m option.
+ */
+ add_drives (drvs, 'a');
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Free up data structures, no longer needed after this point. */
+ free_drives (drvs);
+
+ /* NB. Can't call inspect_mount () here (ie. normal processing of
+ * the -i option) because it can only handle a single root. So we
+ * use low-level APIs.
+ */
+ inspect_do_decrypt ();
+
+ char **roots = guestfs_inspect_os (g);
+ if (roots == NULL) {
+ fprintf (stderr, _("%s: no operating system could be detected inside this disk image.\n\nThis may be because the file is not a disk image, or is not a virtual machine\nimage, or because the OS type is not understood by libguestfs.\n\nNOTE for Red Hat Enterprise Linux 6 users: for Windows guest support you must\ninstall the separate libguestfs-winsupport package.\n\nIf you feel this is an error, please file a bug report including as much\ninformation about the disk image as possible.\n"),
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ output (roots);
+
+ free_strings (roots);
+
+ guestfs_close (g);
+
+ exit (EXIT_SUCCESS);
+}
+
+#define DISABLE_GUESTFS_ERRORS_FOR(stmt) do { \
+ guestfs_error_handler_cb old_error_cb; \
+ void *old_error_data; \
+ old_error_cb = guestfs_get_error_handler (g, &old_error_data); \
+ guestfs_set_error_handler (g, NULL, NULL); \
+ stmt; \
+ guestfs_set_error_handler (g, old_error_cb, old_error_data); \
+ } while (0)
+
+#define XMLERROR(code,e) do { \
+ if ((e) == (code)) { \
+ fprintf (stderr, _("%s: XML write error at \"%s\": %m\n"), \
+ #e, program_name); \
+ exit (EXIT_FAILURE); \
+ } \
+ } while (0)
+
+static void
+output (char **roots)
+{
+ xmlOutputBufferPtr ob = xmlOutputBufferCreateFd (1, NULL);
+ if (ob == NULL) {
+ fprintf (stderr,
+ _("%s: xmlOutputBufferCreateFd: failed to open stdout\n"),
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ xmlTextWriterPtr xo = xmlNewTextWriter (ob);
+ if (xo == NULL) {
+ fprintf (stderr,
+ _("%s: xmlNewTextWriter: failed to create libxml2 writer\n"),
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Pretty-print the output. */
+ XMLERROR (-1, xmlTextWriterSetIndent (xo, 1));
+ XMLERROR (-1, xmlTextWriterSetIndentString (xo, BAD_CAST " "));
+
+ XMLERROR (-1, xmlTextWriterStartDocument (xo, NULL, NULL, NULL));
+ output_roots (xo, roots);
+ XMLERROR (-1, xmlTextWriterEndDocument (xo));
+
+ /* 'ob' is freed by this too. */
+ xmlFreeTextWriter (xo);
+}
+
+static void
+output_roots (xmlTextWriterPtr xo, char **roots)
+{
+ size_t i;
+
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "operatingsystems"));
+ for (i = 0; roots[i] != NULL; ++i)
+ output_root (xo, roots[i]);
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+}
+
+static void
+output_root (xmlTextWriterPtr xo, char *root)
+{
+ char *str;
+ int i;
+ char buf[32];
+ char canonical_root[strlen (root) + 1];
+
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "operatingsystem"));
+
+ strcpy (canonical_root, root);
+ canonicalize (canonical_root);
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "root", BAD_CAST canonical_root));
+
+ str = guestfs_inspect_get_type (g, root);
+ if (!str) exit (EXIT_FAILURE);
+ if (STRNEQ (str, "unknown"))
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "name", BAD_CAST str));
+ free (str);
+
+ str = guestfs_inspect_get_arch (g, root);
+ if (!str) exit (EXIT_FAILURE);
+ if (STRNEQ (str, "unknown"))
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "arch", BAD_CAST str));
+ free (str);
+
+ str = guestfs_inspect_get_distro (g, root);
+ if (!str) exit (EXIT_FAILURE);
+ if (STRNEQ (str, "unknown"))
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "distro", BAD_CAST str));
+ free (str);
+
+ str = guestfs_inspect_get_product_name (g, root);
+ if (!str) exit (EXIT_FAILURE);
+ if (STRNEQ (str, "unknown"))
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "product_name", BAD_CAST str));
+ free (str);
+
+ i = guestfs_inspect_get_major_version (g, root);
+ snprintf (buf, sizeof buf, "%d", i);
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "major_version", BAD_CAST buf));
+ i = guestfs_inspect_get_minor_version (g, root);
+ snprintf (buf, sizeof buf, "%d", i);
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "minor_version", BAD_CAST buf));
+
+ str = guestfs_inspect_get_package_format (g, root);
+ if (!str) exit (EXIT_FAILURE);
+ if (STRNEQ (str, "unknown"))
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "package_format", BAD_CAST str));
+ free (str);
+
+ str = guestfs_inspect_get_package_management (g, root);
+ if (!str) exit (EXIT_FAILURE);
+ if (STRNEQ (str, "unknown"))
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "package_management",
+ BAD_CAST str));
+ free (str);
+
+ /* inspect-get-windows-systemroot will fail with non-windows guests,
+ * or if the systemroot could not be determined for a windows guest.
+ * Disable error output around this call.
+ */
+ DISABLE_GUESTFS_ERRORS_FOR (
+ str = guestfs_inspect_get_windows_systemroot (g, root);
+ if (str)
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "windows_systemroot",
+ BAD_CAST str));
+ free (str);
+ );
+
+ output_mountpoints (xo, root);
+
+ output_filesystems (xo, root);
+
+ output_applications (xo, root);
+
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+}
+
+static int
+compare_keys (const void *p1, const void *p2)
+{
+ const char *key1 = * (char * const *) p1;
+ const char *key2 = * (char * const *) p2;
+
+ return strcmp (key1, key2);
+}
+
+static int
+compare_keys_len (const void *p1, const void *p2)
+{
+ const char *key1 = * (char * const *) p1;
+ const char *key2 = * (char * const *) p2;
+ int c;
+
+ c = strlen (key1) - strlen (key2);
+ if (c != 0)
+ return c;
+
+ return compare_keys (p1, p2);
+}
+
+static void
+output_mountpoints (xmlTextWriterPtr xo, char *root)
+{
+ char **mountpoints;
+ size_t i;
+
+ mountpoints = guestfs_inspect_get_mountpoints (g, root);
+ if (mountpoints == NULL)
+ exit (EXIT_FAILURE);
+
+ /* Sort by key length, shortest key first, and then name, so the
+ * output is stable.
+ */
+ qsort (mountpoints, count_strings (mountpoints) / 2, 2 * sizeof (char *),
+ compare_keys_len);
+
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "mountpoints"));
+
+ for (i = 0; mountpoints[i] != NULL; i += 2) {
+ canonicalize (mountpoints[i+1]);
+
+ XMLERROR (-1,
+ xmlTextWriterStartElement (xo, BAD_CAST "mountpoint"));
+ XMLERROR (-1,
+ xmlTextWriterWriteAttribute (xo, BAD_CAST "dev",
+ BAD_CAST mountpoints[i+1]));
+ XMLERROR (-1,
+ xmlTextWriterWriteString (xo, BAD_CAST mountpoints[i]));
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+ }
+
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+
+ free_strings (mountpoints);
+}
+
+static void
+output_filesystems (xmlTextWriterPtr xo, char *root)
+{
+ char **filesystems;
+ char *str;
+ size_t i;
+
+ filesystems = guestfs_inspect_get_filesystems (g, root);
+ if (filesystems == NULL)
+ exit (EXIT_FAILURE);
+
+ /* Sort by name so the output is stable. */
+ qsort (filesystems, count_strings (filesystems), sizeof (char *),
+ compare_keys);
+
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "filesystems"));
+
+ for (i = 0; filesystems[i] != NULL; ++i) {
+ canonicalize (filesystems[i]);
+
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "filesystem"));
+ XMLERROR (-1,
+ xmlTextWriterWriteAttribute (xo, BAD_CAST "dev",
+ BAD_CAST filesystems[i]));
+
+ DISABLE_GUESTFS_ERRORS_FOR (
+ str = guestfs_vfs_type (g, filesystems[i]);
+ if (str && str[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "type",
+ BAD_CAST str));
+ free (str);
+ );
+
+ DISABLE_GUESTFS_ERRORS_FOR (
+ str = guestfs_vfs_label (g, filesystems[i]);
+ if (str && str[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "label",
+ BAD_CAST str));
+ free (str);
+ );
+
+ DISABLE_GUESTFS_ERRORS_FOR (
+ str = guestfs_vfs_uuid (g, filesystems[i]);
+ if (str && str[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "uuid",
+ BAD_CAST str));
+ free (str);
+ );
+
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+ }
+
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+
+ free_strings (filesystems);
+}
+
+static void
+output_applications (xmlTextWriterPtr xo, char *root)
+{
+ struct guestfs_application_list *apps;
+ size_t i;
+
+ /* We need to mount everything up in order to read out the list of
+ * applications.
+ */
+ inspect_mount_root (root);
+
+ /* This returns an empty list if we simply couldn't determine the
+ * applications, so if it returns NULL then it's a real error.
+ */
+ apps = guestfs_inspect_list_applications (g, root);
+ if (apps == NULL)
+ exit (EXIT_FAILURE);
+ if (guestfs_umount_all (g) == -1)
+ exit (EXIT_FAILURE);
+
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "applications"));
+
+ for (i = 0; i < apps->len; ++i) {
+ XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "application"));
+
+ assert (apps->val[i].app_name && apps->val[i].app_name[0]);
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "name",
+ BAD_CAST apps->val[i].app_name));
+
+ if (apps->val[i].app_display_name && apps->val[i].app_display_name[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "display_name",
+ BAD_CAST apps->val[i].app_display_name));
+
+ if (apps->val[i].app_epoch != 0) {
+ char buf[32];
+
+ snprintf (buf, sizeof buf, "%d", apps->val[i].app_epoch);
+
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "epoch", BAD_CAST buf));
+ }
+
+ if (apps->val[i].app_version && apps->val[i].app_version[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "version",
+ BAD_CAST apps->val[i].app_version));
+ if (apps->val[i].app_release && apps->val[i].app_release[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "release",
+ BAD_CAST apps->val[i].app_release));
+ if (apps->val[i].app_install_path && apps->val[i].app_install_path[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "install_path",
+ BAD_CAST apps->val[i].app_install_path));
+ if (apps->val[i].app_publisher && apps->val[i].app_publisher[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "publisher",
+ BAD_CAST apps->val[i].app_publisher));
+ if (apps->val[i].app_url && apps->val[i].app_url[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "url",
+ BAD_CAST apps->val[i].app_url));
+ if (apps->val[i].app_source_package && apps->val[i].app_source_package[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "source_package",
+ BAD_CAST apps->val[i].app_source_package));
+ if (apps->val[i].app_summary && apps->val[i].app_summary[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "summary",
+ BAD_CAST apps->val[i].app_summary));
+ if (apps->val[i].app_description && apps->val[i].app_description[0])
+ XMLERROR (-1,
+ xmlTextWriterWriteElement (xo, BAD_CAST "description",
+ BAD_CAST apps->val[i].app_description));
+
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+ }
+
+ XMLERROR (-1, xmlTextWriterEndElement (xo));
+
+ guestfs_free_application_list (apps);
+}
+
+/* "/dev/vda1" -> "/dev/sda1"
+ * See BLOCK DEVICE NAMING in guestfs(3).
+ */
+static void
+canonicalize (char *dev)
+{
+ if (STRPREFIX (dev, "/dev/") &&
+ (dev[5] == 'h' || dev[5] == 'v') &&
+ dev[6] == 'd' &&
+ c_isalpha (dev[7]) &&
+ c_isdigit (dev[8]))
+ dev[5] = 's';
+}
+
+static void
+free_strings (char **argv)
+{
+ int argc;
+
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ free (argv[argc]);
+ free (argv);
+}
+
+static int
+count_strings (char *const *argv)
+{
+ int c;
+
+ for (c = 0; argv[c]; ++c)
+ ;
+ return c;
+}
git.annexia.org / libguestfs.git / commitdiff