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inspect-fs-unix.c
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inspect-fs-unix.c
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/* libguestfs
* Copyright (C) 2010-2012 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
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <unistd.h>
#include <string.h>
#include <libintl.h>
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#endif
#include "c-ctype.h"
#include "ignore-value.h"
#include "hash-pjw.h"
#include "guestfs.h"
#include "guestfs-internal.h"
COMPILE_REGEXP (re_fedora, "Fedora release (\\d+)", 0)
COMPILE_REGEXP (re_rhel_old, "Red Hat.*release (\\d+).*Update (\\d+)", 0)
COMPILE_REGEXP (re_rhel, "Red Hat.*release (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_rhel_no_minor, "Red Hat.*release (\\d+)", 0)
COMPILE_REGEXP (re_centos_old, "CentOS.*release (\\d+).*Update (\\d+)", 0)
COMPILE_REGEXP (re_centos, "CentOS.*release (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_centos_no_minor, "CentOS.*release (\\d+)", 0)
COMPILE_REGEXP (re_scientific_linux_old,
"Scientific Linux.*release (\\d+).*Update (\\d+)", 0)
COMPILE_REGEXP (re_scientific_linux,
"Scientific Linux.*release (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_scientific_linux_no_minor,
"Scientific Linux.*release (\\d+)", 0)
COMPILE_REGEXP (re_oracle_linux_old,
"Oracle Linux.*release (\\d+).*Update (\\d+)", 0)
COMPILE_REGEXP (re_oracle_linux,
"Oracle Linux.*release (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_oracle_linux_no_minor, "Oracle Linux.*release (\\d+)", 0)
COMPILE_REGEXP (re_xdev, "^/dev/(h|s|v|xv)d([a-z]+)(\\d*)$", 0)
COMPILE_REGEXP (re_cciss, "^/dev/(cciss/c\\d+d\\d+)(?:p(\\d+))?$", 0)
COMPILE_REGEXP (re_mdN, "^(/dev/md\\d+)$", 0)
COMPILE_REGEXP (re_freebsd_mbr,
"^/dev/(ada{0,1}|vtbd)(\\d+)s(\\d+)([a-z])$", 0)
COMPILE_REGEXP (re_freebsd_gpt, "^/dev/(ada{0,1}|vtbd)(\\d+)p(\\d+)$", 0)
COMPILE_REGEXP (re_diskbyid, "^/dev/disk/by-id/.*-part(\\d+)$", 0)
COMPILE_REGEXP (re_netbsd, "^NetBSD (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_opensuse, "^(openSUSE|SuSE Linux|SUSE LINUX) ", 0)
COMPILE_REGEXP (re_sles, "^SUSE (Linux|LINUX) Enterprise ", 0)
COMPILE_REGEXP (re_nld, "^Novell Linux Desktop ", 0)
COMPILE_REGEXP (re_opensuse_version, "^VERSION = (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_sles_version, "^VERSION = (\\d+)", 0)
COMPILE_REGEXP (re_sles_patchlevel, "^PATCHLEVEL = (\\d+)", 0)
COMPILE_REGEXP (re_minix, "^(\\d+)\\.(\\d+)(\\.(\\d+))?", 0)
COMPILE_REGEXP (re_hurd_dev, "^/dev/(h)d(\\d+)s(\\d+)$", 0)
COMPILE_REGEXP (re_openbsd, "^OpenBSD (\\d+|\\?)\\.(\\d+|\\?)", 0)
COMPILE_REGEXP (re_openbsd_duid, "^[0-9a-f]{16}\\.[a-z]", 0)
COMPILE_REGEXP (re_openbsd_dev, "^/dev/(s|w)d([0-9])([a-z])$", 0)
COMPILE_REGEXP (re_netbsd_dev, "^/dev/(l|s)d([0-9])([a-z])$", 0)
COMPILE_REGEXP (re_altlinux, " (?:(\\d+)(?:\\.(\\d+)(?:[\\.\\d]+)?)?)\\s+\\((?:[^)]+)\\)$", 0)
COMPILE_REGEXP (re_frugalware, "Frugalware (\\d+)\\.(\\d+)", 0)
COMPILE_REGEXP (re_pldlinux, "(\\d+)\\.(\\d+) PLD Linux", 0)
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 void add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
const char *mountable, const char *mp);
static char *resolve_fstab_device (guestfs_h *g, const char *spec,
Hash_table *md_map,
enum inspect_os_type os_type);
static int inspect_with_augeas (guestfs_h *g, struct inspect_fs *fs, const char **configfiles, int (*f) (guestfs_h *, struct inspect_fs *));
/* Hash structure for uuid->path lookups */
typedef struct md_uuid {
uint32_t uuid[4];
char *path;
} md_uuid;
static size_t uuid_hash(const void *x, size_t table_size);
static bool uuid_cmp(const void *x, const void *y);
static void md_uuid_free(void *x);
static int parse_uuid(const char *str, uint32_t *uuid);
/* Hash structure for path(mdadm)->path(appliance) lookup */
typedef struct {
char *mdadm;
char *app;
} mdadm_app;
static size_t mdadm_app_hash(const void *x, size_t table_size);
static bool mdadm_app_cmp(const void *x, const void *y);
static void mdadm_app_free(void *x);
static ssize_t map_app_md_devices (guestfs_h *g, Hash_table **map);
static int map_md_devices(guestfs_h *g, Hash_table **map);
/* Set fs->product_name to the first line of the release file. */
static int
parse_release_file (guestfs_h *g, struct inspect_fs *fs,
const char *release_filename)
{
fs->product_name = guestfs_int_first_line_of_file (g, release_filename);
if (fs->product_name == NULL)
return -1;
if (STREQ (fs->product_name, "")) {
free (fs->product_name);
fs->product_name = NULL;
error (g, _("release file %s is empty or malformed"), release_filename);
return -1;
}
return 0;
}
/* Parse a os-release file.
*
* Only few fields are parsed, falling back to the usual detection if we
* cannot read all of them.
*
* For the format of os-release, see also:
* http://www.freedesktop.org/software/systemd/man/os-release.html
*/
static int
parse_os_release (guestfs_h *g, struct inspect_fs *fs, const char *filename)
{
int64_t size;
CLEANUP_FREE_STRING_LIST char **lines = NULL;
size_t i;
enum inspect_os_distro distro = OS_DISTRO_UNKNOWN;
CLEANUP_FREE char *product_name = NULL;
struct version version;
guestfs_int_version_from_values (&version, -1, -1, 0);
/* 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) {
const char *line = lines[i];
const char *value;
size_t value_len;
if (line[0] == '#')
continue;
value = strchr (line, '=');
if (value == NULL)
continue;
++value;
value_len = strlen (line) - (value - line);
if (value_len > 1 && value[0] == '"' && value[value_len-1] == '"') {
++value;
value_len -= 2;
}
#define VALUE_IS(a) STREQLEN(value, a, value_len)
if (STRPREFIX (line, "ID=")) {
if (VALUE_IS ("alpine"))
distro = OS_DISTRO_ALPINE_LINUX;
else if (VALUE_IS ("altlinux"))
distro = OS_DISTRO_ALTLINUX;
else if (VALUE_IS ("arch"))
distro = OS_DISTRO_ARCHLINUX;
else if (VALUE_IS ("centos"))
distro = OS_DISTRO_CENTOS;
else if (VALUE_IS ("coreos"))
distro = OS_DISTRO_COREOS;
else if (VALUE_IS ("debian"))
distro = OS_DISTRO_DEBIAN;
else if (VALUE_IS ("fedora"))
distro = OS_DISTRO_FEDORA;
else if (VALUE_IS ("frugalware"))
distro = OS_DISTRO_FRUGALWARE;
else if (VALUE_IS ("mageia"))
distro = OS_DISTRO_MAGEIA;
else if (VALUE_IS ("opensuse"))
distro = OS_DISTRO_OPENSUSE;
else if (VALUE_IS ("pld"))
distro = OS_DISTRO_PLD_LINUX;
else if (VALUE_IS ("rhel"))
distro = OS_DISTRO_RHEL;
else if (VALUE_IS ("sles"))
distro = OS_DISTRO_SLES;
else if (VALUE_IS ("ubuntu"))
distro = OS_DISTRO_UBUNTU;
else if (VALUE_IS ("void"))
distro = OS_DISTRO_VOID_LINUX;
} else if (STRPREFIX (line, "PRETTY_NAME=")) {
free (product_name);
product_name = safe_strndup (g, value, value_len);
} else if (STRPREFIX (line, "VERSION_ID=")) {
CLEANUP_FREE char *buf =
safe_asprintf (g, "%.*s", (int) value_len, value);
if (guestfs_int_version_from_x_y_or_x (g, &version, buf) == -1)
return -1;
}
#undef VALUE_IS
}
/* If we haven't got all the fields, exit right away. */
if (distro == OS_DISTRO_UNKNOWN || product_name == NULL)
return 0;
if (version.v_major == -1 || version.v_minor == -1) {
/* Void Linux has no VERSION_ID (yet), but since it's a rolling
* distro and has no other version/release-like file. */
if (distro == OS_DISTRO_VOID_LINUX)
version_init_null (&version);
else
return 0;
}
/* Apparently, os-release in Debian and CentOS does not provide the full
* version number in VERSION_ID, but just the "major" part of it.
* Hence, if version.v_minor is 0, act as there was no information in
* os-release, which will continue the inspection using the release files
* as done previously.
*/
if ((distro == OS_DISTRO_DEBIAN || distro == OS_DISTRO_CENTOS) &&
version.v_minor == 0)
return 0;
/* We got everything, so set the fields and report the inspection
* was successful.
*/
fs->distro = distro;
fs->product_name = product_name;
product_name = NULL;
fs->version = version;
return 1;
}
/* 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.
*
* CoreOS has a /etc/lsb-release link to /usr/share/coreos/lsb-release containing:
* DISTRIB_ID=CoreOS
* DISTRIB_RELEASE=647.0.0
* DISTRIB_CODENAME="Red Dog"
* DISTRIB_DESCRIPTION="CoreOS 647.0.0"
*/
static int
parse_lsb_release (guestfs_h *g, struct inspect_fs *fs, const char *filename)
{
int64_t size;
CLEANUP_FREE_STRING_LIST char **lines = NULL;
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 (fs->distro == 0 &&
STREQ (lines[i], "DISTRIB_ID=\"Mageia\"")) {
fs->distro = OS_DISTRO_MAGEIA;
r = 1;
}
else if (fs->distro == 0 &&
STREQ (lines[i], "DISTRIB_ID=CoreOS")) {
fs->distro = OS_DISTRO_COREOS;
r = 1;
}
else if (STRPREFIX (lines[i], "DISTRIB_RELEASE=")) {
if (guestfs_int_version_from_x_y_or_x (g, &fs->version, &lines[i][16]) == -1)
return -1;
}
else if (fs->product_name == NULL &&
(STRPREFIX (lines[i], "DISTRIB_DESCRIPTION=\"") ||
STRPREFIX (lines[i], "DISTRIB_DESCRIPTION='"))) {
const 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=")) {
const size_t len = strlen (lines[i]) - 20;
fs->product_name = safe_strndup (g, &lines[i][20], len);
r = 1;
}
}
/* The unnecessary construct in the next line is required to
* workaround -Wstrict-overflow warning in gcc 4.5.1.
*/
return r ? 1 : 0;
}
static int
parse_suse_release (guestfs_h *g, struct inspect_fs *fs, const char *filename)
{
int64_t size;
CLEANUP_FREE_STRING_LIST char **lines = NULL;
int r = -1;
/* 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;
if (lines[0] == NULL)
goto out;
/* First line is dist release name */
fs->product_name = safe_strdup (g, lines[0]);
/* Match SLES first because openSuSE regex overlaps some SLES release strings */
if (match (g, fs->product_name, re_sles) || match (g, fs->product_name, re_nld)) {
char *major, *minor;
fs->distro = OS_DISTRO_SLES;
/* Second line contains version string */
if (lines[1] == NULL)
goto out;
major = match1 (g, lines[1], re_sles_version);
if (major == NULL)
goto out;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
goto out;
/* Third line contains service pack string */
if (lines[2] == NULL)
goto out;
minor = match1 (g, lines[2], re_sles_patchlevel);
if (minor == NULL)
goto out;
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
free (minor);
if (fs->version.v_minor == -1)
goto out;
}
else if (match (g, fs->product_name, re_opensuse)) {
fs->distro = OS_DISTRO_OPENSUSE;
/* Second line contains version string */
if (lines[1] == NULL)
goto out;
if (guestfs_int_version_from_x_y_re (g, &fs->version, lines[1],
re_opensuse_version) == -1)
goto out;
}
r = 0;
out:
return r;
}
/* The currently mounted device is known to be a Linux root. Try to
* determine from this the distro, version, etc. Also parse
* /etc/fstab to determine the arrangement of mountpoints and
* associated devices.
*/
int
guestfs_int_check_linux_root (guestfs_h *g, struct inspect_fs *fs)
{
int r;
char *major, *minor;
fs->type = OS_TYPE_LINUX;
if (guestfs_is_file_opts (g, "/etc/os-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
r = parse_os_release (g, fs, "/etc/os-release");
if (r == -1) /* error */
return -1;
if (r == 1) /* ok - detected the release from this file */
goto skip_release_checks;
}
if (guestfs_is_file_opts (g, "/etc/lsb-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
r = parse_lsb_release (g, fs, "/etc/lsb-release");
if (r == -1) /* error */
return -1;
if (r == 1) /* ok - detected the release from this file */
goto skip_release_checks;
}
/* RHEL-based distros include a "/etc/redhat-release" file, hence their
* checks need to be performed before the Red-Hat one.
*/
if (guestfs_is_file_opts (g, "/etc/oracle-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_ORACLE_LINUX;
if (parse_release_file (g, fs, "/etc/oracle-release") == -1)
return -1;
if (match2 (g, fs->product_name, re_oracle_linux_old, &major, &minor) ||
match2 (g, fs->product_name, re_oracle_linux, &major, &minor)) {
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1) {
free (minor);
return -1;
}
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
free (minor);
if (fs->version.v_minor == -1)
return -1;
} else if ((major = match1 (g, fs->product_name, re_oracle_linux_no_minor)) != NULL) {
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
return -1;
fs->version.v_minor = 0;
}
}
else if (guestfs_is_file_opts (g, "/etc/centos-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_CENTOS;
if (parse_release_file (g, fs, "/etc/centos-release") == -1)
return -1;
if (match2 (g, fs->product_name, re_centos_old, &major, &minor) ||
match2 (g, fs->product_name, re_centos, &major, &minor)) {
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1) {
free (minor);
return -1;
}
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
free (minor);
if (fs->version.v_minor == -1)
return -1;
}
else if ((major = match1 (g, fs->product_name, re_centos_no_minor)) != NULL) {
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
return -1;
fs->version.v_minor = 0;
}
}
else if (guestfs_is_file_opts (g, "/etc/altlinux-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_ALTLINUX;
if (parse_release_file (g, fs, "/etc/altlinux-release") == -1)
return -1;
if (guestfs_int_version_from_x_y_re (g, &fs->version, fs->product_name,
re_altlinux) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/redhat-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_REDHAT_BASED; /* Something generic Red Hat-like. */
if (parse_release_file (g, fs, "/etc/redhat-release") == -1)
return -1;
if ((major = match1 (g, fs->product_name, re_fedora)) != NULL) {
fs->distro = OS_DISTRO_FEDORA;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
return -1;
}
else if (match2 (g, fs->product_name, re_rhel_old, &major, &minor) ||
match2 (g, fs->product_name, re_rhel, &major, &minor)) {
fs->distro = OS_DISTRO_RHEL;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1) {
free (minor);
return -1;
}
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
free (minor);
if (fs->version.v_minor == -1)
return -1;
}
else if ((major = match1 (g, fs->product_name, re_rhel_no_minor)) != NULL) {
fs->distro = OS_DISTRO_RHEL;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
return -1;
fs->version.v_minor = 0;
}
else if (match2 (g, fs->product_name, re_centos_old, &major, &minor) ||
match2 (g, fs->product_name, re_centos, &major, &minor)) {
fs->distro = OS_DISTRO_CENTOS;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1) {
free (minor);
return -1;
}
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
free (minor);
if (fs->version.v_minor == -1)
return -1;
}
else if ((major = match1 (g, fs->product_name, re_centos_no_minor)) != NULL) {
fs->distro = OS_DISTRO_CENTOS;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
return -1;
fs->version.v_minor = 0;
}
else if (match2 (g, fs->product_name, re_scientific_linux_old, &major, &minor) ||
match2 (g, fs->product_name, re_scientific_linux, &major, &minor)) {
fs->distro = OS_DISTRO_SCIENTIFIC_LINUX;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1) {
free (minor);
return -1;
}
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
free (minor);
if (fs->version.v_minor == -1)
return -1;
}
else if ((major = match1 (g, fs->product_name, re_scientific_linux_no_minor)) != NULL) {
fs->distro = OS_DISTRO_SCIENTIFIC_LINUX;
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
free (major);
if (fs->version.v_major == -1)
return -1;
fs->version.v_minor = 0;
}
}
else if (guestfs_is_file_opts (g, "/etc/debian_version",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_DEBIAN;
if (parse_release_file (g, fs, "/etc/debian_version") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/pardus-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_PARDUS;
if (parse_release_file (g, fs, "/etc/pardus-release") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/arch-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_ARCHLINUX;
/* /etc/arch-release file is empty and I can't see a way to
* determine the actual release or product string.
*/
}
else if (guestfs_is_file_opts (g, "/etc/gentoo-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_GENTOO;
if (parse_release_file (g, fs, "/etc/gentoo-release") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/meego-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_MEEGO;
if (parse_release_file (g, fs, "/etc/meego-release") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/slackware-version",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_SLACKWARE;
if (parse_release_file (g, fs, "/etc/slackware-version") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/ttylinux-target",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_TTYLINUX;
if (parse_release_file (g, fs, "/etc/ttylinux-target") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/SuSE-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_SUSE_BASED;
if (parse_suse_release (g, fs, "/etc/SuSE-release") == -1)
return -1;
}
/* CirrOS versions providing a own version file.
*/
else if (guestfs_is_file_opts (g, "/etc/cirros/version",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_CIRROS;
if (parse_release_file (g, fs, "/etc/cirros/version") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
/* Buildroot (http://buildroot.net) is an embedded Linux distro
* toolkit. It is used by specific distros such as Cirros.
*/
else if (guestfs_is_file_opts (g, "/etc/br-version",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
if (guestfs_is_file_opts (g, "/usr/share/cirros/logo",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0)
fs->distro = OS_DISTRO_CIRROS;
else
fs->distro = OS_DISTRO_BUILDROOT;
/* /etc/br-version has the format YYYY.MM[-git/hg/svn release] */
if (parse_release_file (g, fs, "/etc/br-version") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/alpine-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_ALPINE_LINUX;
if (parse_release_file (g, fs, "/etc/alpine-release") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/frugalware-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_FRUGALWARE;
if (parse_release_file (g, fs, "/etc/frugalware-release") == -1)
return -1;
if (guestfs_int_version_from_x_y_re (g, &fs->version, fs->product_name,
re_frugalware) == -1)
return -1;
}
else if (guestfs_is_file_opts (g, "/etc/pld-release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_PLD_LINUX;
if (parse_release_file (g, fs, "/etc/pld-release") == -1)
return -1;
if (guestfs_int_version_from_x_y_re (g, &fs->version, fs->product_name,
re_pldlinux) == -1)
return -1;
}
skip_release_checks:;
/* 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.
*/
const char *configfiles[] = { "/etc/fstab", "/etc/mdadm.conf", NULL };
if (inspect_with_augeas (g, fs, configfiles, check_fstab) == -1)
return -1;
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
}
/* The currently mounted device is known to be a FreeBSD root. */
int
guestfs_int_check_freebsd_root (guestfs_h *g, struct inspect_fs *fs)
{
fs->type = OS_TYPE_FREEBSD;
fs->distro = OS_DISTRO_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_is_file_opts (g, "/etc/motd",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
if (parse_release_file (g, fs, "/etc/motd") == -1)
return -1;
if (guestfs_int_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. */
const char *configfiles[] = { "/etc/fstab", NULL };
if (inspect_with_augeas (g, fs, configfiles, check_fstab) == -1)
return -1;
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
}
/* The currently mounted device is maybe to be a *BSD root. */
int
guestfs_int_check_netbsd_root (guestfs_h *g, struct inspect_fs *fs)
{
if (guestfs_is_file_opts (g, "/etc/release",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
int result;
if (parse_release_file (g, fs, "/etc/release") == -1)
return -1;
result = guestfs_int_version_from_x_y_re (g, &fs->version,
fs->product_name, re_netbsd);
if (result == -1) {
return -1;
} else if (result == 1) {
fs->type = OS_TYPE_NETBSD;
fs->distro = OS_DISTRO_NETBSD;
}
} else {
return -1;
}
/* Determine the architecture. */
check_architecture (g, fs);
/* We already know /etc/fstab exists because it's part of the test above. */
const char *configfiles[] = { "/etc/fstab", NULL };
if (inspect_with_augeas (g, fs, configfiles, check_fstab) == -1)
return -1;
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
}
/* The currently mounted device may be an OpenBSD root. */
int
guestfs_int_check_openbsd_root (guestfs_h *g, struct inspect_fs *fs)
{
if (guestfs_is_file_opts (g, "/etc/motd",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
CLEANUP_FREE char *major = NULL, *minor = NULL;
/* The first line of this file gets automatically updated at boot. */
if (parse_release_file (g, fs, "/etc/motd") == -1)
return -1;
if (match2 (g, fs->product_name, re_openbsd, &major, &minor)) {
fs->type = OS_TYPE_OPENBSD;
fs->distro = OS_DISTRO_OPENBSD;
/* Before the first boot, the first line will look like this:
*
* OpenBSD ?.? (UNKNOWN)
*/
if ((fs->product_name[8] != '?') && (fs->product_name[10] != '?')) {
fs->version.v_major = guestfs_int_parse_unsigned_int (g, major);
if (fs->version.v_major == -1)
return -1;
fs->version.v_minor = guestfs_int_parse_unsigned_int (g, minor);
if (fs->version.v_minor == -1)
return -1;
}
}
} else {
return -1;
}
/* Determine the architecture. */
check_architecture (g, fs);
/* We already know /etc/fstab exists because it's part of the test above. */
const char *configfiles[] = { "/etc/fstab", NULL };
if (inspect_with_augeas (g, fs, configfiles, check_fstab) == -1)
return -1;
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
}
/* The currently mounted device may be a Hurd root. Hurd has distros
* just like Linux.
*/
int
guestfs_int_check_hurd_root (guestfs_h *g, struct inspect_fs *fs)
{
fs->type = OS_TYPE_HURD;
if (guestfs_is_file_opts (g, "/etc/debian_version",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
fs->distro = OS_DISTRO_DEBIAN;
if (parse_release_file (g, fs, "/etc/debian_version") == -1)
return -1;
if (guestfs_int_parse_major_minor (g, fs) == -1)
return -1;
}
/* Arch Hurd also exists, but inconveniently it doesn't have
* the normal /etc/arch-release file. XXX
*/
/* Determine the architecture. */
check_architecture (g, fs);
if (guestfs_is_file (g, "/etc/fstab") > 0) {
const char *configfiles[] = { "/etc/fstab", NULL };
if (inspect_with_augeas (g, fs, configfiles, check_fstab) == -1)
return -1;
}
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
}
/* The currently mounted device is maybe to be a Minix root. */
int
guestfs_int_check_minix_root (guestfs_h *g, struct inspect_fs *fs)
{
fs->type = OS_TYPE_MINIX;
if (guestfs_is_file_opts (g, "/etc/version",
GUESTFS_IS_FILE_OPTS_FOLLOWSYMLINKS, 1, -1) > 0) {
if (parse_release_file (g, fs, "/etc/version") == -1)
return -1;
if (guestfs_int_version_from_x_y_re (g, &fs->version, fs->product_name,
re_minix) == -1)
return -1;
} else {
return -1;
}
/* Determine the architecture. */
check_architecture (g, fs);
/* TODO: enable fstab inspection once resolve_fstab_device implements
* the proper mapping from the Minix device names to the appliance names
*/
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
return 0;
}
/* The currently mounted device is a CoreOS root. From this partition we can
* only determine the hostname. All immutable OS files are under a separate
* read-only /usr partition.
*/
int
guestfs_int_check_coreos_root (guestfs_h *g, struct inspect_fs *fs)
{
fs->type = OS_TYPE_LINUX;
fs->distro = OS_DISTRO_COREOS;
/* Determine hostname. */
if (check_hostname_unix (g, fs) == -1)
return -1;
/* CoreOS does not contain /etc/fstab to determine the mount points.
* Associate this filesystem with the "/" mount point.
*/
add_fstab_entry (g, fs, fs->mountable, "/");