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));
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);
}
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);
}
*/
static int check_filesystem (guestfs_h *g, const char *device);
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_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 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
check_for_filesystem_on (guestfs_h *g, const char *device)
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;
+ 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;
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;
skip_release_checks:;
+ /* If distro test above was successful, work out the package format. */
+ check_package_format (g, fs);
+ check_package_management (g, fs);
+
+ /* Determine the architecture. */
+ check_architecture (g, fs);
+
+ /* We already know /etc/fstab exists because it's part of the test
+ * for Linux root above. We must now parse this file to determine
+ * which filesystems are used by the operating system and how they
+ * are mounted.
+ */
+ if (check_fstab (g, fs) == -1)
+ return -1;
+
+ return 0;
+}
+
+/* The currently mounted device is known to be a FreeBSD root. */
+static int
+check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
+{
+ int r;
+
+ fs->type = OS_TYPE_FREEBSD;
+
+ /* FreeBSD has no authoritative version file. The version number is
+ * in /etc/motd, which the system administrator might edit, but
+ * we'll use that anyway.
+ */
+
+ if (guestfs_exists (g, "/etc/motd") > 0) {
+ if (parse_release_file (g, fs, "/etc/motd") == -1)
+ return -1;
+
+ if (parse_major_minor (g, fs) == -1)
+ return -1;
+ }
+
/* Determine the architecture. */
+ check_architecture (g, fs);
+
+ /* We already know /etc/fstab exists because it's part of the test above. */
+ if (check_fstab (g, fs) == -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. */
}
}
}
+}
- /* 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")?
- */
+static int check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs);
+
+static int
+check_fstab (guestfs_h *g, struct inspect_fs *fs)
+{
+ int r;
+
+ /* XXX What if !feature_available (g, "augeas")? */
if (guestfs_aug_init (g, "/", 16|32) == -1)
return -1;
guestfs_aug_rm (g, "/augeas/load//incl[. != \"/etc/fstab\"]");
guestfs_aug_load (g);
- r = check_fstab (g, fs);
+ r = check_fstab_aug_open (g, fs);
guestfs_aug_close (g);
if (r == -1)
return -1;
}
static int
-check_fstab (guestfs_h *g, struct inspect_fs *fs)
+check_fstab_aug_open (guestfs_h *g, struct inspect_fs *fs)
{
char **lines = guestfs_aug_ls (g, "/files/etc/fstab");
if (lines == NULL)
{
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
free (a1);
guestfs___free_string_list (devices);
}
- else {
- /* Didn't match device pattern, return original spec unchanged. */
- device = safe_strdup (g, spec);
+ 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;
}
if (check_windows_registry (g, fs) == -1)
return -1;
+ check_package_format (g, fs);
+ check_package_management (g, fs);
+
return 0;
}
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:
+ fs->package_format = OS_PACKAGE_FORMAT_RPM;
+ break;
+
+ case OS_DISTRO_DEBIAN:
+ case OS_DISTRO_UBUNTU:
+ 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_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:
+ 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_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)
{
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_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_UNKNOWN:
+ default:
+ ret = safe_strdup (g, "unknown");
+ break;
+ }
+
+ 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_package_format (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
+char *
+guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
+{
+ NOT_IMPL(NULL);
+}
+
#endif /* no PCRE or hivex at compile time */
void
return 1;
}
+/* Match a regular expression which contains exactly three captures. */
+int
+guestfs___match3 (guestfs_h *g, const char *str, const pcre *re,
+ char **ret1, char **ret2, char **ret3)
+{
+ size_t len = strlen (str);
+ int vec[30], r;
+
+ r = pcre_exec (re, NULL, str, len, 0, 0, vec, 30);
+ if (r == PCRE_ERROR_NOMATCH)
+ return 0;
+ if (r != 4) {
+ /* Internal error -- should not happen. */
+ 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]);
+ *ret3 = safe_strndup (g, &str[vec[6]], vec[7]-vec[6]);
+
+ return 1;
+}
+
#endif /* HAVE_PCRE */
git.annexia.org / libguestfs.git / blobdiff