static int check_linux_root (guestfs_h *g, struct inspect_fs *fs);
static int check_freebsd_root (guestfs_h *g, struct inspect_fs *fs);
static void check_architecture (guestfs_h *g, struct inspect_fs *fs);
+static int check_hostname_unix (guestfs_h *g, struct inspect_fs *fs);
+static int check_hostname_redhat (guestfs_h *g, struct inspect_fs *fs);
+static int check_hostname_freebsd (guestfs_h *g, struct inspect_fs *fs);
static int check_fstab (guestfs_h *g, struct inspect_fs *fs);
static int check_windows_root (guestfs_h *g, struct inspect_fs *fs);
static int check_windows_arch (guestfs_h *g, struct inspect_fs *fs);
-static int check_windows_registry (guestfs_h *g, struct inspect_fs *fs);
+static int check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs);
+static int check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs);
static char *resolve_windows_path_silently (guestfs_h *g, const char *);
static int extend_fses (guestfs_h *g);
static int parse_unsigned_int (guestfs_h *g, const char *str);
static void check_package_management (guestfs_h *g, struct inspect_fs *fs);
static int download_to_tmp (guestfs_h *g, const char *filename, char *localtmp, int64_t max_size);
static int inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char *filename, int (*f) (guestfs_h *, struct inspect_fs *));
+static char *first_line_of_file (guestfs_h *g, const char *filename);
static int
check_for_filesystem_on (guestfs_h *g, const char *device)
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);
- guestfs___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;
}
static int
parse_lsb_release (guestfs_h *g, struct inspect_fs *fs)
{
+ const char *filename = "/etc/lsb-release";
+ int64_t size;
char **lines;
size_t i;
int r = 0;
- lines = guestfs_head_n (g, 10, "/etc/lsb-release");
+ /* Don't trust guestfs_head_n not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return -1;
+ if (size > 1000000) {
+ 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;
if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
return -1;
+ /* Determine hostname. */
+ if (check_hostname_unix (g, fs) == -1)
+ return -1;
+
return 0;
}
if (inspect_with_augeas (g, fs, "/etc/fstab", check_fstab) == -1)
return -1;
+ /* Determine hostname. */
+ if (check_hostname_unix (g, fs) == -1)
+ return -1;
+
return 0;
}
}
}
+/* 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)
+{
+ char **lines;
+
+ 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 > 1000000) {
+ 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)
{
if (check_windows_arch (g, fs) == -1)
return -1;
- if (check_windows_registry (g, fs) == -1)
+ /* Product name and version. */
+ if (check_windows_software_registry (g, fs) == -1)
return -1;
check_package_format (g, fs);
check_package_management (g, fs);
+ /* Hostname. */
+ if (check_windows_system_registry (g, fs) == -1)
+ return -1;
+
return 0;
}
* registry fields available to callers.
*/
static int
-check_windows_registry (guestfs_h *g, struct inspect_fs *fs)
+check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs)
{
TMP_TEMPLATE_ON_STACK (software_local);
return ret;
}
+static int
+check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs)
+{
+ TMP_TEMPLATE_ON_STACK (system_local);
+
+ size_t len = strlen (fs->windows_systemroot) + 64;
+ char system[len];
+ snprintf (system, len, "%s/system32/config/system",
+ fs->windows_systemroot);
+
+ char *system_path = resolve_windows_path_silently (g, system);
+ if (!system_path)
+ /* If the system hive doesn't exist, just accept that we cannot
+ * find hostname etc.
+ */
+ return 0;
+
+ int ret = -1;
+ hive_h *h = NULL;
+ hive_value_h *values = NULL;
+
+ if (download_to_tmp (g, system_path, system_local, 100000000) == -1)
+ goto out;
+
+ h = hivex_open (system_local, g->verbose ? HIVEX_OPEN_VERBOSE : 0);
+ if (h == NULL) {
+ perrorf (g, "hivex_open");
+ goto out;
+ }
+
+ hive_node_h node = hivex_root (h);
+ /* XXX Don't hard-code ControlSet001. The current control set would
+ * be another good thing to expose up through the inspection API.
+ */
+ const char *hivepath[] =
+ { "ControlSet001", "Services", "Tcpip", "Parameters" };
+ size_t i;
+ for (i = 0;
+ node != 0 && i < sizeof hivepath / sizeof hivepath[0];
+ ++i) {
+ node = hivex_node_get_child (h, node, hivepath[i]);
+ }
+
+ if (node == 0) {
+ perrorf (g, "hivex: cannot locate HKLM\\SYSTEM\\ControlSet001\\Services\\Tcpip\\Parameters");
+ goto out;
+ }
+
+ values = hivex_node_values (h, node);
+
+ for (i = 0; values[i] != 0; ++i) {
+ char *key = hivex_value_key (h, values[i]);
+ if (key == NULL) {
+ perrorf (g, "hivex_value_key");
+ goto out;
+ }
+
+ if (STRCASEEQ (key, "Hostname")) {
+ fs->hostname = hivex_value_string (h, values[i]);
+ if (!fs->hostname) {
+ perrorf (g, "hivex_value_string");
+ free (key);
+ goto out;
+ }
+ }
+ /* many other interesting fields here ... */
+
+ free (key);
+ }
+
+ ret = 0;
+
+ out:
+ if (h) hivex_close (h);
+ free (values);
+ free (system_path);
+
+ /* Free up the temporary file. */
+ unlink (system_local);
+#undef system_local_len
+
+ return ret;
+}
+
static char *
resolve_windows_path_silently (guestfs_h *g, const char *path)
{
return ret;
}
+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");
+}
+
static struct guestfs_application_list *list_applications_rpm (guestfs_h *g, struct inspect_fs *fs);
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);
return r;
}
+/* Get the first line of a small file, without any trailing newline
+ * character.
+ */
+static char *
+first_line_of_file (guestfs_h *g, const char *filename)
+{
+ char **lines;
+ int64_t size;
+ char *ret;
+
+ /* Don't trust guestfs_head_n not to break with very large files.
+ * Check the file size is something reasonable first.
+ */
+ size = guestfs_filesize (g, filename);
+ if (size == -1)
+ /* guestfs_filesize failed and has already set error in handle */
+ return NULL;
+ if (size > 1000000) {
+ error (g, _("size of %s is unreasonably large (%" PRIi64 " bytes)"),
+ filename, size);
+ return NULL;
+ }
+
+ lines = guestfs_head_n (g, 1, filename);
+ if (lines == NULL)
+ return NULL;
+ if (lines[0] == NULL) {
+ error (g, _("%s: file is empty"), filename);
+ guestfs___free_string_list (lines);
+ return NULL;
+ }
+ /* lines[1] should be NULL because of '1' argument above ... */
+
+ ret = lines[0]; /* caller frees */
+ free (lines); /* free the array */
+
+ return ret;
+}
+
#else /* no PCRE or hivex at compile time */
/* XXX These functions should be in an optgroup. */
NOT_IMPL(NULL);
}
+char *
+guestfs__inspect_get_hostname (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
struct guestfs_application_list *
guestfs__inspect_list_applications (guestfs_h *g, const char *root)
{
free (g->fses[i].device);
free (g->fses[i].product_name);
free (g->fses[i].arch);
+ free (g->fses[i].hostname);
free (g->fses[i].windows_systemroot);
size_t j;
for (j = 0; j < g->fses[i].nr_fstab; ++j) {
git.annexia.org / libguestfs.git / blobdiff