2012-05-22 19:23:33 +02:00
|
|
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
|
|
|
|
/***
|
|
|
|
This file is part of systemd.
|
|
|
|
|
|
|
|
Copyright 2012 Lennart Poettering
|
|
|
|
|
|
|
|
systemd 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 2.1 of the License, or
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
***/
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <mntent.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
#include "log.h"
|
|
|
|
#include "util.h"
|
|
|
|
#include "unit-name.h"
|
|
|
|
#include "path-util.h"
|
|
|
|
#include "mount-setup.h"
|
|
|
|
#include "special.h"
|
|
|
|
#include "mkdir.h"
|
2012-06-22 10:27:05 +02:00
|
|
|
#include "virt.h"
|
2013-02-14 12:26:13 +01:00
|
|
|
#include "fileio.h"
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
static const char *arg_dest = "/tmp";
|
2012-06-22 10:27:05 +02:00
|
|
|
static bool arg_enabled = true;
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
static int device_name(const char *path, char **unit) {
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
assert(path);
|
|
|
|
|
|
|
|
if (!is_device_path(path))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
p = unit_name_from_path(path, ".device");
|
|
|
|
if (!p)
|
2012-07-25 23:55:59 +02:00
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
*unit = p;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int mount_find_pri(struct mntent *me, int *ret) {
|
|
|
|
char *end, *pri;
|
|
|
|
unsigned long r;
|
|
|
|
|
|
|
|
assert(me);
|
|
|
|
assert(ret);
|
|
|
|
|
|
|
|
pri = hasmntopt(me, "pri");
|
|
|
|
if (!pri)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
pri += 4;
|
|
|
|
|
|
|
|
errno = 0;
|
|
|
|
r = strtoul(pri, &end, 10);
|
|
|
|
if (errno != 0)
|
|
|
|
return -errno;
|
|
|
|
|
|
|
|
if (end == pri || (*end != ',' && *end != 0))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
*ret = (int) r;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int add_swap(const char *what, struct mntent *me) {
|
2013-01-02 23:15:55 +01:00
|
|
|
char _cleanup_free_ *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL;
|
|
|
|
FILE _cleanup_fclose_ *f = NULL;
|
2012-05-22 19:23:33 +02:00
|
|
|
bool noauto, nofail;
|
|
|
|
int r, pri = -1;
|
|
|
|
|
|
|
|
assert(what);
|
|
|
|
assert(me);
|
|
|
|
|
|
|
|
r = mount_find_pri(me, &pri);
|
|
|
|
if (r < 0) {
|
|
|
|
log_error("Failed to parse priority");
|
|
|
|
return pri;
|
|
|
|
}
|
|
|
|
|
|
|
|
noauto = !!hasmntopt(me, "noauto");
|
|
|
|
nofail = !!hasmntopt(me, "nofail");
|
|
|
|
|
|
|
|
name = unit_name_from_path(what, ".swap");
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!name)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-07-13 13:41:01 +02:00
|
|
|
unit = strjoin(arg_dest, "/", name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!unit)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
f = fopen(unit, "wxe");
|
|
|
|
if (!f) {
|
2012-11-27 01:09:28 +01:00
|
|
|
if (errno == EEXIST)
|
|
|
|
log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
|
|
|
|
else
|
|
|
|
log_error("Failed to create unit file %s: %m", unit);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
fputs("# Automatically generated by systemd-fstab-generator\n\n"
|
|
|
|
"[Unit]\n"
|
2012-05-22 23:08:24 +02:00
|
|
|
"SourcePath=/etc/fstab\n"
|
2012-05-22 19:23:33 +02:00
|
|
|
"DefaultDependencies=no\n"
|
|
|
|
"Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
|
|
|
|
"Before=" SPECIAL_UMOUNT_TARGET "\n", f);
|
|
|
|
|
|
|
|
if (!noauto && !nofail)
|
|
|
|
fputs("Before=" SPECIAL_SWAP_TARGET "\n", f);
|
|
|
|
|
|
|
|
fprintf(f,
|
|
|
|
"\n"
|
|
|
|
"[Swap]\n"
|
|
|
|
"What=%s\n",
|
|
|
|
what);
|
|
|
|
|
|
|
|
if (pri >= 0)
|
|
|
|
fprintf(f,
|
|
|
|
"Priority=%i\n",
|
|
|
|
pri);
|
|
|
|
|
|
|
|
fflush(f);
|
|
|
|
if (ferror(f)) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to write unit file %s: %m", unit);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!noauto) {
|
2012-07-13 13:41:01 +02:00
|
|
|
lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!lnk)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-05-31 12:40:20 +02:00
|
|
|
mkdir_parents_label(lnk, 0755);
|
2012-05-22 19:23:33 +02:00
|
|
|
if (symlink(unit, lnk) < 0) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to create symlink %s: %m", lnk);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
r = device_name(what, &device);
|
2012-07-25 23:55:59 +02:00
|
|
|
if (r < 0)
|
2013-01-02 23:15:55 +01:00
|
|
|
return r;
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
if (r > 0) {
|
|
|
|
free(lnk);
|
2012-07-13 13:41:01 +02:00
|
|
|
lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!lnk)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-05-31 12:40:20 +02:00
|
|
|
mkdir_parents_label(lnk, 0755);
|
2012-05-22 19:23:33 +02:00
|
|
|
if (symlink(unit, lnk) < 0) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to create symlink %s: %m", lnk);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-02 23:15:55 +01:00
|
|
|
return 0;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
2012-12-24 13:01:00 +01:00
|
|
|
static bool mount_is_bind(struct mntent *me) {
|
|
|
|
assert(me);
|
|
|
|
|
|
|
|
return
|
|
|
|
hasmntopt(me, "bind") ||
|
2013-02-21 16:09:40 +01:00
|
|
|
streq(me->mnt_type, "bind") ||
|
|
|
|
hasmntopt(me, "rbind") ||
|
|
|
|
streq(me->mnt_type, "rbind");
|
2012-12-24 13:01:00 +01:00
|
|
|
}
|
|
|
|
|
2012-05-22 19:23:33 +02:00
|
|
|
static bool mount_is_network(struct mntent *me) {
|
|
|
|
assert(me);
|
|
|
|
|
|
|
|
return
|
|
|
|
hasmntopt(me, "_netdev") ||
|
|
|
|
fstype_is_network(me->mnt_type);
|
|
|
|
}
|
|
|
|
|
2013-02-22 11:52:36 +01:00
|
|
|
static bool mount_in_initrd(struct mntent *me) {
|
|
|
|
assert(me);
|
|
|
|
|
|
|
|
return
|
|
|
|
hasmntopt(me, "x-initrd.mount") ||
|
|
|
|
streq(me->mnt_dir, "/usr");
|
|
|
|
}
|
|
|
|
|
2013-03-25 22:04:40 +01:00
|
|
|
static int add_mount(
|
|
|
|
const char *what,
|
|
|
|
const char *where,
|
|
|
|
const char *type,
|
|
|
|
const char *opts,
|
|
|
|
int passno,
|
|
|
|
bool noauto,
|
|
|
|
bool nofail,
|
|
|
|
bool automount,
|
|
|
|
bool isbind,
|
|
|
|
const char *pre,
|
|
|
|
const char *post,
|
|
|
|
const char *setup,
|
|
|
|
const char *source) {
|
2013-01-02 23:15:55 +01:00
|
|
|
char _cleanup_free_
|
|
|
|
*name = NULL, *unit = NULL, *lnk = NULL, *device = NULL,
|
|
|
|
*automount_name = NULL, *automount_unit = NULL;
|
|
|
|
FILE _cleanup_fclose_ *f = NULL;
|
2012-05-22 19:23:33 +02:00
|
|
|
int r;
|
|
|
|
|
|
|
|
assert(what);
|
|
|
|
assert(where);
|
2012-11-23 03:41:13 +01:00
|
|
|
assert(type);
|
|
|
|
assert(opts);
|
|
|
|
assert(source);
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-11-23 03:41:13 +01:00
|
|
|
if (streq(type, "autofs"))
|
2012-05-22 19:23:33 +02:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!is_path(where)) {
|
|
|
|
log_warning("Mount point %s is not a valid path, ignoring.", where);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mount_point_is_api(where) ||
|
|
|
|
mount_point_ignore(where))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
name = unit_name_from_path(where, ".mount");
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!name)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-07-13 13:41:01 +02:00
|
|
|
unit = strjoin(arg_dest, "/", name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!unit)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
f = fopen(unit, "wxe");
|
|
|
|
if (!f) {
|
2012-11-27 01:09:28 +01:00
|
|
|
if (errno == EEXIST)
|
|
|
|
log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);
|
|
|
|
else
|
|
|
|
log_error("Failed to create unit file %s: %m", unit);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
2012-11-23 03:41:13 +01:00
|
|
|
fprintf(f,
|
|
|
|
"# Automatically generated by systemd-fstab-generator\n\n"
|
2012-05-22 19:23:33 +02:00
|
|
|
"[Unit]\n"
|
2012-11-23 03:41:13 +01:00
|
|
|
"SourcePath=%s\n"
|
|
|
|
"DefaultDependencies=no\n",
|
|
|
|
source);
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2013-03-04 19:01:05 +01:00
|
|
|
if (!path_equal(where, "/")) {
|
|
|
|
if (pre)
|
|
|
|
fprintf(f,
|
2013-03-25 22:04:40 +01:00
|
|
|
"After=%s\n",
|
2013-03-04 19:01:05 +01:00
|
|
|
pre);
|
2013-03-25 22:04:40 +01:00
|
|
|
|
|
|
|
if (setup)
|
|
|
|
fprintf(f,
|
|
|
|
"Wants=%s\n",
|
|
|
|
setup);
|
|
|
|
|
2012-05-22 19:23:33 +02:00
|
|
|
fprintf(f,
|
|
|
|
"Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
|
2013-03-04 19:01:05 +01:00
|
|
|
"Before=" SPECIAL_UMOUNT_TARGET "\n");
|
|
|
|
}
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2013-03-04 19:01:05 +01:00
|
|
|
if (post && !noauto && !nofail && !automount)
|
2012-05-22 19:23:33 +02:00
|
|
|
fprintf(f,
|
|
|
|
"Before=%s\n",
|
|
|
|
post);
|
|
|
|
|
|
|
|
fprintf(f,
|
|
|
|
"\n"
|
|
|
|
"[Mount]\n"
|
|
|
|
"What=%s\n"
|
|
|
|
"Where=%s\n"
|
|
|
|
"Type=%s\n"
|
|
|
|
"FsckPassNo=%i\n",
|
|
|
|
what,
|
|
|
|
where,
|
2012-11-23 03:41:13 +01:00
|
|
|
type,
|
|
|
|
passno);
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-11-23 03:41:13 +01:00
|
|
|
if (!isempty(opts) &&
|
|
|
|
!streq(opts, "defaults"))
|
2012-05-22 19:23:33 +02:00
|
|
|
fprintf(f,
|
|
|
|
"Options=%s\n",
|
2012-11-23 03:41:13 +01:00
|
|
|
opts);
|
|
|
|
|
2012-05-22 19:23:33 +02:00
|
|
|
fflush(f);
|
|
|
|
if (ferror(f)) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to write unit file %s: %m", unit);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!noauto) {
|
2013-03-04 19:01:05 +01:00
|
|
|
if (post) {
|
|
|
|
lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);
|
|
|
|
if (!lnk)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2013-03-04 19:01:05 +01:00
|
|
|
mkdir_parents_label(lnk, 0755);
|
|
|
|
if (symlink(unit, lnk) < 0) {
|
|
|
|
log_error("Failed to create symlink %s: %m", lnk);
|
|
|
|
return -errno;
|
|
|
|
}
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!isbind &&
|
|
|
|
!path_equal(where, "/")) {
|
|
|
|
|
|
|
|
r = device_name(what, &device);
|
2012-07-25 23:55:59 +02:00
|
|
|
if (r < 0)
|
2013-01-02 23:15:55 +01:00
|
|
|
return r;
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
if (r > 0) {
|
|
|
|
free(lnk);
|
2012-07-13 13:41:01 +02:00
|
|
|
lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!lnk)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-05-31 12:40:20 +02:00
|
|
|
mkdir_parents_label(lnk, 0755);
|
2012-05-22 19:23:33 +02:00
|
|
|
if (symlink(unit, lnk) < 0) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to create symlink %s: %m", lnk);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (automount && !path_equal(where, "/")) {
|
|
|
|
automount_name = unit_name_from_path(where, ".automount");
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!name)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-07-13 13:41:01 +02:00
|
|
|
automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!automount_unit)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
fclose(f);
|
|
|
|
f = fopen(automount_unit, "wxe");
|
|
|
|
if (!f) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to create unit file %s: %m", automount_unit);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
fprintf(f,
|
|
|
|
"# Automatically generated by systemd-fstab-generator\n\n"
|
|
|
|
"[Unit]\n"
|
2013-02-22 11:52:36 +01:00
|
|
|
"SourcePath=%s\n"
|
2012-05-22 19:23:33 +02:00
|
|
|
"DefaultDependencies=no\n"
|
|
|
|
"Conflicts=" SPECIAL_UMOUNT_TARGET "\n"
|
2013-03-04 19:01:05 +01:00
|
|
|
"Before=" SPECIAL_UMOUNT_TARGET "\n",
|
|
|
|
source);
|
|
|
|
|
|
|
|
if (post)
|
|
|
|
fprintf(f,
|
|
|
|
"Before= %s\n",
|
|
|
|
post);
|
|
|
|
|
|
|
|
fprintf(f,
|
2012-05-22 19:23:33 +02:00
|
|
|
"[Automount]\n"
|
|
|
|
"Where=%s\n",
|
|
|
|
where);
|
|
|
|
|
|
|
|
fflush(f);
|
|
|
|
if (ferror(f)) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to write unit file %s: %m", automount_unit);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
free(lnk);
|
2012-07-13 13:41:01 +02:00
|
|
|
lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!lnk)
|
|
|
|
return log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-05-31 12:40:20 +02:00
|
|
|
mkdir_parents_label(lnk, 0755);
|
2012-05-22 19:23:33 +02:00
|
|
|
if (symlink(automount_unit, lnk) < 0) {
|
2012-11-09 12:00:46 +01:00
|
|
|
log_error("Failed to create symlink %s: %m", lnk);
|
2013-01-02 23:15:55 +01:00
|
|
|
return -errno;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-02 23:15:55 +01:00
|
|
|
return 0;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|
|
|
|
|
2013-02-22 11:52:36 +01:00
|
|
|
static int parse_fstab(const char *prefix, bool initrd) {
|
|
|
|
_cleanup_free_ char *fstab_path = NULL;
|
2013-03-25 18:18:57 +01:00
|
|
|
FILE *f;
|
2012-05-22 19:23:33 +02:00
|
|
|
int r = 0;
|
|
|
|
struct mntent *me;
|
|
|
|
|
2013-03-25 18:18:57 +01:00
|
|
|
fstab_path = strjoin(strempty(prefix), "/etc/fstab", NULL);
|
|
|
|
if (!fstab_path)
|
|
|
|
return log_oom();
|
|
|
|
|
2013-02-22 11:52:36 +01:00
|
|
|
f = setmntent(fstab_path, "r");
|
2012-05-22 19:23:33 +02:00
|
|
|
if (!f) {
|
|
|
|
if (errno == ENOENT)
|
|
|
|
return 0;
|
|
|
|
|
2013-03-25 20:10:29 +01:00
|
|
|
log_error("Failed to open %s/etc/fstab: %m", strempty(prefix));
|
2012-05-22 19:23:33 +02:00
|
|
|
return -errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
while ((me = getmntent(f))) {
|
2013-01-02 23:15:55 +01:00
|
|
|
char _cleanup_free_ *where = NULL, *what = NULL;
|
2012-05-22 19:23:33 +02:00
|
|
|
int k;
|
|
|
|
|
2013-02-22 11:52:36 +01:00
|
|
|
if (initrd && !mount_in_initrd(me))
|
|
|
|
continue;
|
|
|
|
|
2012-05-22 19:23:33 +02:00
|
|
|
what = fstab_node_to_udev_node(me->mnt_fsname);
|
2013-03-25 20:10:29 +01:00
|
|
|
where = strjoin(strempty(prefix), me->mnt_dir, NULL);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!what || !where) {
|
2012-07-25 23:55:59 +02:00
|
|
|
r = log_oom();
|
2012-05-22 19:23:33 +02:00
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
fstab-generator: avoid mangling of mount source string
This is a valid source entry in /etc/fstab:
//192.168.6.10/data /data cifs noperm,auto
On Mon, Jun 4, 2012 at 2:04 PM, Dave Reisner <d@falconindy.com> wrote:
> On Mon, Jun 04, 2012 at 12:57:47PM +0200, Kay Sievers wrote:
>>
>> Changed it to use:
>> path_is_absolute()
>> instead of:
>> is_path(),
>> so that we still sanitize the input we might match against.
>>
>> Let me know, if you think that could still cause any problems?
> Yes, this will still break CIFS shares.
2012-06-04 15:21:05 +02:00
|
|
|
if (is_path(where))
|
2012-05-22 19:23:33 +02:00
|
|
|
path_kill_slashes(where);
|
|
|
|
|
|
|
|
log_debug("Found entry what=%s where=%s type=%s", what, where, me->mnt_type);
|
|
|
|
|
|
|
|
if (streq(me->mnt_type, "swap"))
|
|
|
|
k = add_swap(what, me);
|
2012-11-23 03:41:13 +01:00
|
|
|
else {
|
2013-03-04 19:01:05 +01:00
|
|
|
bool noauto, nofail, automount, isbind;
|
2013-03-25 22:04:40 +01:00
|
|
|
const char *pre, *post, *setup;
|
2012-11-23 03:41:13 +01:00
|
|
|
|
|
|
|
noauto = !!hasmntopt(me, "noauto");
|
|
|
|
nofail = !!hasmntopt(me, "nofail");
|
|
|
|
automount =
|
|
|
|
hasmntopt(me, "comment=systemd.automount") ||
|
|
|
|
hasmntopt(me, "x-systemd.automount");
|
|
|
|
isbind = mount_is_bind(me);
|
2013-03-04 19:01:05 +01:00
|
|
|
|
|
|
|
if (initrd) {
|
|
|
|
post = SPECIAL_INITRD_FS_TARGET;
|
|
|
|
pre = NULL;
|
2013-03-25 22:04:40 +01:00
|
|
|
setup = NULL;
|
2013-03-26 15:33:57 +01:00
|
|
|
} else if (mount_in_initrd(me)) {
|
2013-03-14 13:12:10 +01:00
|
|
|
post = SPECIAL_INITRD_ROOT_FS_TARGET;
|
|
|
|
pre = NULL;
|
2013-03-25 22:04:40 +01:00
|
|
|
setup = NULL;
|
2013-03-04 19:01:05 +01:00
|
|
|
} else if (mount_is_network(me)) {
|
|
|
|
post = SPECIAL_REMOTE_FS_TARGET;
|
|
|
|
pre = SPECIAL_REMOTE_FS_PRE_TARGET;
|
2013-03-25 22:04:40 +01:00
|
|
|
setup = SPECIAL_REMOTE_FS_SETUP_TARGET;
|
2013-03-04 19:01:05 +01:00
|
|
|
} else {
|
|
|
|
post = SPECIAL_LOCAL_FS_TARGET;
|
|
|
|
pre = SPECIAL_LOCAL_FS_PRE_TARGET;
|
2013-03-25 22:04:40 +01:00
|
|
|
setup = NULL;
|
2013-03-04 19:01:05 +01:00
|
|
|
}
|
2012-11-23 03:41:13 +01:00
|
|
|
|
|
|
|
k = add_mount(what, where, me->mnt_type, me->mnt_opts,
|
2013-03-25 22:04:40 +01:00
|
|
|
me->mnt_passno, noauto, nofail, automount,
|
|
|
|
isbind, pre, post, setup, fstab_path);
|
2012-11-23 03:41:13 +01:00
|
|
|
}
|
2012-05-22 19:23:33 +02:00
|
|
|
|
|
|
|
if (k < 0)
|
|
|
|
r = k;
|
|
|
|
}
|
|
|
|
|
|
|
|
finish:
|
|
|
|
endmntent(f);
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
2012-11-23 03:41:13 +01:00
|
|
|
static int parse_new_root_from_proc_cmdline(void) {
|
2013-03-05 06:45:06 +01:00
|
|
|
_cleanup_free_ char *what = NULL, *type = NULL, *opts = NULL, *line = NULL;
|
2013-03-25 18:19:52 +01:00
|
|
|
char *w, *state;
|
2012-11-23 03:41:13 +01:00
|
|
|
int r;
|
|
|
|
size_t l;
|
|
|
|
|
|
|
|
r = read_one_line_file("/proc/cmdline", &line);
|
|
|
|
if (r < 0) {
|
|
|
|
log_error("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-03-01 17:49:06 +01:00
|
|
|
opts = strdup("ro");
|
2012-11-23 03:41:13 +01:00
|
|
|
type = strdup("auto");
|
2013-03-01 17:49:06 +01:00
|
|
|
if (!opts || !type)
|
2012-11-23 03:41:13 +01:00
|
|
|
return log_oom();
|
|
|
|
|
2013-01-09 21:03:11 +01:00
|
|
|
/* root= and roofstype= may occur more than once, the last instance should take precedence.
|
|
|
|
* In the case of multiple rootflags= the arguments should be concatenated */
|
2012-11-23 03:41:13 +01:00
|
|
|
FOREACH_WORD_QUOTED(w, l, line, state) {
|
2013-03-25 18:19:52 +01:00
|
|
|
_cleanup_free_ char *word;
|
2012-11-23 03:41:13 +01:00
|
|
|
|
|
|
|
word = strndup(w, l);
|
|
|
|
if (!word)
|
|
|
|
return log_oom();
|
|
|
|
|
|
|
|
else if (startswith(word, "root=")) {
|
|
|
|
free(what);
|
|
|
|
what = fstab_node_to_udev_node(word+5);
|
|
|
|
if (!what)
|
|
|
|
return log_oom();
|
|
|
|
|
|
|
|
} else if (startswith(word, "rootfstype=")) {
|
|
|
|
free(type);
|
|
|
|
type = strdup(word + 11);
|
|
|
|
if (!type)
|
|
|
|
return log_oom();
|
|
|
|
|
|
|
|
} else if (startswith(word, "rootflags=")) {
|
2013-03-25 18:19:52 +01:00
|
|
|
char *o;
|
|
|
|
|
|
|
|
o = strjoin(opts, ",", word + 10, NULL);
|
|
|
|
if (!o)
|
2012-11-23 03:41:13 +01:00
|
|
|
return log_oom();
|
|
|
|
|
2013-03-25 18:19:52 +01:00
|
|
|
free(opts);
|
|
|
|
opts = o;
|
|
|
|
|
2012-11-23 03:41:13 +01:00
|
|
|
} else if (streq(word, "ro") || streq(word, "rw")) {
|
2013-03-25 18:19:52 +01:00
|
|
|
char *o;
|
|
|
|
|
|
|
|
o = strjoin(opts, ",", word, NULL);
|
|
|
|
if (!o)
|
2012-11-23 03:41:13 +01:00
|
|
|
return log_oom();
|
|
|
|
|
2013-03-25 18:19:52 +01:00
|
|
|
free(opts);
|
|
|
|
opts = o;
|
2013-03-01 21:15:51 +01:00
|
|
|
}
|
2012-11-23 03:41:13 +01:00
|
|
|
}
|
|
|
|
|
2013-03-04 21:00:56 +01:00
|
|
|
if (!what) {
|
2013-03-26 14:46:35 +01:00
|
|
|
log_debug("Could not find a root= entry on the kernel commandline.");
|
2013-03-04 21:00:56 +01:00
|
|
|
return 0;
|
|
|
|
}
|
2012-11-23 03:41:13 +01:00
|
|
|
|
2013-03-04 21:00:56 +01:00
|
|
|
if (what[0] != '/') {
|
|
|
|
log_debug("Skipping entry what=%s where=/sysroot type=%s", what, type);
|
|
|
|
return 0;
|
|
|
|
}
|
2012-11-23 03:41:13 +01:00
|
|
|
|
2013-03-04 21:00:56 +01:00
|
|
|
log_debug("Found entry what=%s where=/sysroot type=%s", what, type);
|
|
|
|
r = add_mount(what, "/sysroot", type, opts, 0, false, false, false,
|
2013-03-25 22:04:40 +01:00
|
|
|
false, NULL, SPECIAL_INITRD_ROOT_FS_TARGET, NULL, "/proc/cmdline");
|
2012-11-23 03:41:13 +01:00
|
|
|
|
2013-03-04 21:00:56 +01:00
|
|
|
return (r < 0) ? r : 0;
|
2012-11-23 03:41:13 +01:00
|
|
|
}
|
|
|
|
|
2012-06-22 10:27:05 +02:00
|
|
|
static int parse_proc_cmdline(void) {
|
2013-01-02 23:15:55 +01:00
|
|
|
char _cleanup_free_ *line = NULL;
|
|
|
|
char *w, *state;
|
2012-06-22 10:27:05 +02:00
|
|
|
int r;
|
|
|
|
size_t l;
|
|
|
|
|
|
|
|
if (detect_container(NULL) > 0)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
r = read_one_line_file("/proc/cmdline", &line);
|
|
|
|
if (r < 0) {
|
|
|
|
log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
FOREACH_WORD_QUOTED(w, l, line, state) {
|
2013-01-02 23:15:55 +01:00
|
|
|
char _cleanup_free_ *word = NULL;
|
2012-06-22 10:27:05 +02:00
|
|
|
|
|
|
|
word = strndup(w, l);
|
2013-01-02 23:15:55 +01:00
|
|
|
if (!word)
|
|
|
|
return log_oom();
|
2012-06-22 10:27:05 +02:00
|
|
|
|
|
|
|
if (startswith(word, "fstab=")) {
|
|
|
|
r = parse_boolean(word + 6);
|
|
|
|
if (r < 0)
|
|
|
|
log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6);
|
|
|
|
else
|
|
|
|
arg_enabled = r;
|
|
|
|
|
|
|
|
} else if (startswith(word, "rd.fstab=")) {
|
|
|
|
|
|
|
|
if (in_initrd()) {
|
|
|
|
r = parse_boolean(word + 6);
|
|
|
|
if (r < 0)
|
|
|
|
log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6);
|
|
|
|
else
|
|
|
|
arg_enabled = r;
|
|
|
|
}
|
|
|
|
|
|
|
|
} else if (startswith(word, "fstab.") ||
|
|
|
|
(in_initrd() && startswith(word, "rd.fstab."))) {
|
|
|
|
|
|
|
|
log_warning("Unknown kernel switch %s. Ignoring.", word);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-01-02 23:15:55 +01:00
|
|
|
return 0;
|
2012-06-22 10:27:05 +02:00
|
|
|
}
|
|
|
|
|
2012-05-22 19:23:33 +02:00
|
|
|
int main(int argc, char *argv[]) {
|
2013-03-05 06:45:06 +01:00
|
|
|
int r = 0, k, l = 0;
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2012-05-23 03:43:29 +02:00
|
|
|
if (argc > 1 && argc != 4) {
|
|
|
|
log_error("This program takes three or no arguments.");
|
2012-05-22 19:23:33 +02:00
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (argc > 1)
|
|
|
|
arg_dest = argv[1];
|
|
|
|
|
2012-05-22 22:00:37 +02:00
|
|
|
log_set_target(LOG_TARGET_SAFE);
|
2012-05-22 19:23:33 +02:00
|
|
|
log_parse_environment();
|
|
|
|
log_open();
|
|
|
|
|
|
|
|
umask(0022);
|
|
|
|
|
2012-06-22 10:27:05 +02:00
|
|
|
if (parse_proc_cmdline() < 0)
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
|
2013-03-05 06:45:06 +01:00
|
|
|
if (in_initrd())
|
|
|
|
r = parse_new_root_from_proc_cmdline();
|
2012-11-23 03:41:13 +01:00
|
|
|
|
2013-03-05 06:45:06 +01:00
|
|
|
if (!arg_enabled)
|
|
|
|
return (r < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
|
|
|
2013-03-25 18:18:57 +01:00
|
|
|
k = parse_fstab(NULL, false);
|
2013-03-05 06:45:06 +01:00
|
|
|
|
|
|
|
if (in_initrd())
|
|
|
|
l = parse_fstab("/sysroot", true);
|
2012-05-22 19:23:33 +02:00
|
|
|
|
2013-02-22 11:52:36 +01:00
|
|
|
return (r < 0) || (k < 0) || (l < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
|
2012-05-22 19:23:33 +02:00
|
|
|
}
|