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6b1dc2bd LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <mntent.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | ||
28 | #include "log.h" | |
29 | #include "util.h" | |
30 | #include "unit-name.h" | |
31 | #include "path-util.h" | |
d15d0333 | 32 | #include "fstab-util.h" |
6b1dc2bd LP |
33 | #include "mount-setup.h" |
34 | #include "special.h" | |
35 | #include "mkdir.h" | |
e48fdd84 | 36 | #include "generator.h" |
059cb385 | 37 | #include "strv.h" |
689aede8 | 38 | #include "virt.h" |
6b1dc2bd LP |
39 | |
40 | static const char *arg_dest = "/tmp"; | |
e48fdd84 | 41 | static bool arg_fstab_enabled = true; |
6db615c1 LP |
42 | static char *arg_root_what = NULL; |
43 | static char *arg_root_fstype = NULL; | |
44 | static char *arg_root_options = NULL; | |
45 | static int arg_root_rw = -1; | |
9f103625 TH |
46 | static char *arg_usr_what = NULL; |
47 | static char *arg_usr_fstype = NULL; | |
48 | static char *arg_usr_options = NULL; | |
6b1dc2bd | 49 | |
5607d856 ZJS |
50 | static int add_swap( |
51 | const char *what, | |
52 | struct mntent *me, | |
53 | bool noauto, | |
54 | bool nofail) { | |
55 | ||
e0952d9d | 56 | _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *filtered = NULL; |
7fd1b19b | 57 | _cleanup_fclose_ FILE *f = NULL; |
6b1dc2bd | 58 | int r, pri = -1; |
e0952d9d | 59 | const char *opts; |
6b1dc2bd LP |
60 | |
61 | assert(what); | |
62 | assert(me); | |
63 | ||
00b4ffde LP |
64 | if (access("/proc/swaps", F_OK) < 0) { |
65 | log_info("Swap not supported, ignoring fstab swap entry for %s.", what); | |
66 | return 0; | |
67 | } | |
68 | ||
689aede8 LP |
69 | if (detect_container(NULL) > 0) { |
70 | log_info("Running in a container, ignoring fstab swap entry for %s.", what); | |
71 | return 0; | |
72 | } | |
73 | ||
e0952d9d ZJS |
74 | opts = me->mnt_opts; |
75 | r = fstab_find_pri(opts, &pri); | |
76 | if (r < 0) { | |
77 | log_error_errno(r, "Failed to parse priority, ignoring: %m"); | |
78 | ||
79 | /* Remove invalid pri field */ | |
80 | r = fstab_filter_options(opts, "pri\0", NULL, NULL, &filtered); | |
81 | if (r < 0) | |
82 | return log_error_errno(r, "Failed to parse options: %m"); | |
83 | opts = filtered; | |
84 | } | |
4f52d3fe | 85 | |
6b1dc2bd | 86 | name = unit_name_from_path(what, ".swap"); |
d0aa9ce5 ZJS |
87 | if (!name) |
88 | return log_oom(); | |
6b1dc2bd | 89 | |
b7def684 | 90 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
91 | if (!unit) |
92 | return log_oom(); | |
6b1dc2bd LP |
93 | |
94 | f = fopen(unit, "wxe"); | |
95 | if (!f) { | |
67ab5f76 TG |
96 | if (errno == EEXIST) |
97 | log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
98 | else | |
56f64d95 | 99 | log_error_errno(errno, "Failed to create unit file %s: %m", unit); |
d0aa9ce5 | 100 | return -errno; |
6b1dc2bd LP |
101 | } |
102 | ||
6b1dc2bd | 103 | fprintf(f, |
64347fc2 TG |
104 | "# Automatically generated by systemd-fstab-generator\n\n" |
105 | "[Unit]\n" | |
c3834f9b LP |
106 | "SourcePath=/etc/fstab\n" |
107 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n" | |
6b1dc2bd LP |
108 | "[Swap]\n" |
109 | "What=%s\n", | |
110 | what); | |
111 | ||
47cb901e LP |
112 | /* Note that we currently pass the priority field twice, once |
113 | * in Priority=, and once in Options= */ | |
6b1dc2bd | 114 | if (pri >= 0) |
4f52d3fe ZJS |
115 | fprintf(f, "Priority=%i\n", pri); |
116 | ||
e0952d9d ZJS |
117 | if (!isempty(opts) && !streq(opts, "defaults")) |
118 | fprintf(f, "Options=%s\n", opts); | |
6b1dc2bd | 119 | |
47cb901e | 120 | r = fflush_and_check(f); |
23bbb0de MS |
121 | if (r < 0) |
122 | return log_error_errno(r, "Failed to write unit file %s: %m", unit); | |
6b1dc2bd | 123 | |
b3208b66 | 124 | /* use what as where, to have a nicer error message */ |
e0952d9d | 125 | r = generator_write_timeouts(arg_dest, what, what, opts, NULL); |
b3208b66 ZJS |
126 | if (r < 0) |
127 | return r; | |
128 | ||
4e82fe52 | 129 | if (!noauto) { |
5607d856 ZJS |
130 | lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET, |
131 | nofail ? ".wants/" : ".requires/", name, NULL); | |
4e82fe52 TG |
132 | if (!lnk) |
133 | return log_oom(); | |
134 | ||
135 | mkdir_parents_label(lnk, 0755); | |
4a62c710 MS |
136 | if (symlink(unit, lnk) < 0) |
137 | return log_error_errno(errno, "Failed to create symlink %s: %m", lnk); | |
4e82fe52 TG |
138 | } |
139 | ||
d0aa9ce5 | 140 | return 0; |
6b1dc2bd LP |
141 | } |
142 | ||
6b1dc2bd LP |
143 | static bool mount_is_network(struct mntent *me) { |
144 | assert(me); | |
145 | ||
b9f111b9 ZJS |
146 | return fstab_test_option(me->mnt_opts, "_netdev\0") || |
147 | fstype_is_network(me->mnt_type); | |
6b1dc2bd LP |
148 | } |
149 | ||
3d22d1ab TG |
150 | static bool mount_in_initrd(struct mntent *me) { |
151 | assert(me); | |
152 | ||
b9f111b9 ZJS |
153 | return fstab_test_option(me->mnt_opts, "x-initrd.mount\0") || |
154 | streq(me->mnt_dir, "/usr"); | |
3d22d1ab TG |
155 | } |
156 | ||
e8d2f6cd LP |
157 | static int add_mount( |
158 | const char *what, | |
159 | const char *where, | |
6db615c1 | 160 | const char *fstype, |
e8d2f6cd LP |
161 | const char *opts, |
162 | int passno, | |
163 | bool noauto, | |
164 | bool nofail, | |
165 | bool automount, | |
e8d2f6cd | 166 | const char *post, |
e8d2f6cd | 167 | const char *source) { |
e48fdd84 | 168 | |
7fd1b19b | 169 | _cleanup_free_ char |
1dc2ced4 | 170 | *name = NULL, *unit = NULL, *lnk = NULL, |
29686440 ZJS |
171 | *automount_name = NULL, *automount_unit = NULL, |
172 | *filtered = NULL; | |
7fd1b19b | 173 | _cleanup_fclose_ FILE *f = NULL; |
94192cda | 174 | int r; |
6b1dc2bd LP |
175 | |
176 | assert(what); | |
177 | assert(where); | |
5e398e54 TG |
178 | assert(opts); |
179 | assert(source); | |
6b1dc2bd | 180 | |
6db615c1 | 181 | if (streq_ptr(fstype, "autofs")) |
6b1dc2bd LP |
182 | return 0; |
183 | ||
184 | if (!is_path(where)) { | |
185 | log_warning("Mount point %s is not a valid path, ignoring.", where); | |
186 | return 0; | |
187 | } | |
188 | ||
189 | if (mount_point_is_api(where) || | |
190 | mount_point_ignore(where)) | |
191 | return 0; | |
192 | ||
e48fdd84 | 193 | if (path_equal(where, "/")) { |
5ecdcf41 | 194 | /* The root disk is not an option */ |
e48fdd84 LP |
195 | automount = false; |
196 | noauto = false; | |
197 | nofail = false; | |
198 | } | |
199 | ||
6b1dc2bd | 200 | name = unit_name_from_path(where, ".mount"); |
d0aa9ce5 ZJS |
201 | if (!name) |
202 | return log_oom(); | |
6b1dc2bd | 203 | |
b7def684 | 204 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
205 | if (!unit) |
206 | return log_oom(); | |
6b1dc2bd LP |
207 | |
208 | f = fopen(unit, "wxe"); | |
209 | if (!f) { | |
67ab5f76 TG |
210 | if (errno == EEXIST) |
211 | log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
212 | else | |
56f64d95 | 213 | log_error_errno(errno, "Failed to create unit file %s: %m", unit); |
d0aa9ce5 | 214 | return -errno; |
6b1dc2bd LP |
215 | } |
216 | ||
5e398e54 | 217 | fprintf(f, |
c3834f9b LP |
218 | "# Automatically generated by systemd-fstab-generator\n\n" |
219 | "[Unit]\n" | |
220 | "SourcePath=%s\n" | |
221 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n", | |
222 | source); | |
6b1dc2bd | 223 | |
700e07ff | 224 | if (post && !noauto && !nofail && !automount) |
5ecdcf41 | 225 | fprintf(f, "Before=%s\n", post); |
6b1dc2bd | 226 | |
e48fdd84 | 227 | if (passno != 0) { |
6db615c1 | 228 | r = generator_write_fsck_deps(f, arg_dest, what, where, fstype); |
e48fdd84 LP |
229 | if (r < 0) |
230 | return r; | |
231 | } | |
64e70e4b | 232 | |
6b1dc2bd LP |
233 | fprintf(f, |
234 | "\n" | |
235 | "[Mount]\n" | |
236 | "What=%s\n" | |
6db615c1 | 237 | "Where=%s\n", |
6b1dc2bd | 238 | what, |
6db615c1 LP |
239 | where); |
240 | ||
241 | if (!isempty(fstype) && !streq(fstype, "auto")) | |
242 | fprintf(f, "Type=%s\n", fstype); | |
6b1dc2bd | 243 | |
29686440 ZJS |
244 | r = generator_write_timeouts(arg_dest, what, where, opts, &filtered); |
245 | if (r < 0) | |
246 | return r; | |
247 | ||
248 | if (!isempty(filtered) && !streq(filtered, "defaults")) | |
249 | fprintf(f, "Options=%s\n", filtered); | |
5e398e54 | 250 | |
6b1dc2bd | 251 | fflush(f); |
4a62c710 MS |
252 | if (ferror(f)) |
253 | return log_error_errno(errno, "Failed to write unit file %s: %m", unit); | |
6b1dc2bd | 254 | |
5ecdcf41 LP |
255 | if (!noauto && post) { |
256 | lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL); | |
257 | if (!lnk) | |
258 | return log_oom(); | |
259 | ||
260 | mkdir_parents_label(lnk, 0755); | |
4a62c710 MS |
261 | if (symlink(unit, lnk) < 0) |
262 | return log_error_errno(errno, "Failed to create symlink %s: %m", lnk); | |
6b1dc2bd LP |
263 | } |
264 | ||
e48fdd84 | 265 | if (automount) { |
6b1dc2bd | 266 | automount_name = unit_name_from_path(where, ".automount"); |
01264ad1 | 267 | if (!automount_name) |
d0aa9ce5 | 268 | return log_oom(); |
6b1dc2bd | 269 | |
b7def684 | 270 | automount_unit = strjoin(arg_dest, "/", automount_name, NULL); |
d0aa9ce5 ZJS |
271 | if (!automount_unit) |
272 | return log_oom(); | |
6b1dc2bd LP |
273 | |
274 | fclose(f); | |
275 | f = fopen(automount_unit, "wxe"); | |
4a62c710 MS |
276 | if (!f) |
277 | return log_error_errno(errno, "Failed to create unit file %s: %m", automount_unit); | |
6b1dc2bd LP |
278 | |
279 | fprintf(f, | |
280 | "# Automatically generated by systemd-fstab-generator\n\n" | |
281 | "[Unit]\n" | |
c3834f9b LP |
282 | "SourcePath=%s\n" |
283 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n", | |
700e07ff HH |
284 | source); |
285 | ||
286 | if (post) | |
287 | fprintf(f, | |
e48fdd84 | 288 | "Before=%s\n", |
700e07ff HH |
289 | post); |
290 | ||
291 | fprintf(f, | |
6b1dc2bd LP |
292 | "[Automount]\n" |
293 | "Where=%s\n", | |
6b1dc2bd LP |
294 | where); |
295 | ||
296 | fflush(f); | |
4a62c710 MS |
297 | if (ferror(f)) |
298 | return log_error_errno(errno, "Failed to write unit file %s: %m", automount_unit); | |
6b1dc2bd LP |
299 | |
300 | free(lnk); | |
b7def684 | 301 | lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL); |
d0aa9ce5 ZJS |
302 | if (!lnk) |
303 | return log_oom(); | |
6b1dc2bd | 304 | |
d2e54fae | 305 | mkdir_parents_label(lnk, 0755); |
4a62c710 MS |
306 | if (symlink(automount_unit, lnk) < 0) |
307 | return log_error_errno(errno, "Failed to create symlink %s: %m", lnk); | |
6b1dc2bd LP |
308 | } |
309 | ||
d0aa9ce5 | 310 | return 0; |
6b1dc2bd LP |
311 | } |
312 | ||
e48fdd84 | 313 | static int parse_fstab(bool initrd) { |
6db615c1 | 314 | _cleanup_endmntent_ FILE *f = NULL; |
e48fdd84 | 315 | const char *fstab_path; |
6b1dc2bd | 316 | struct mntent *me; |
e48fdd84 | 317 | int r = 0; |
6b1dc2bd | 318 | |
e48fdd84 LP |
319 | fstab_path = initrd ? "/sysroot/etc/fstab" : "/etc/fstab"; |
320 | f = setmntent(fstab_path, "re"); | |
6b1dc2bd LP |
321 | if (!f) { |
322 | if (errno == ENOENT) | |
323 | return 0; | |
324 | ||
56f64d95 | 325 | log_error_errno(errno, "Failed to open %s: %m", fstab_path); |
6b1dc2bd LP |
326 | return -errno; |
327 | } | |
328 | ||
329 | while ((me = getmntent(f))) { | |
7fd1b19b | 330 | _cleanup_free_ char *where = NULL, *what = NULL; |
5607d856 | 331 | bool noauto, nofail; |
6b1dc2bd LP |
332 | int k; |
333 | ||
3d22d1ab TG |
334 | if (initrd && !mount_in_initrd(me)) |
335 | continue; | |
336 | ||
6b1dc2bd | 337 | what = fstab_node_to_udev_node(me->mnt_fsname); |
e48fdd84 LP |
338 | if (!what) |
339 | return log_oom(); | |
340 | ||
00b4ffde | 341 | if (is_device_path(what) && path_is_read_only_fs("sys") > 0) { |
689aede8 LP |
342 | log_info("Running in a container, ignoring fstab device entry for %s.", what); |
343 | continue; | |
344 | } | |
345 | ||
e48fdd84 LP |
346 | where = initrd ? strappend("/sysroot/", me->mnt_dir) : strdup(me->mnt_dir); |
347 | if (!where) | |
5862d652 | 348 | return log_oom(); |
6b1dc2bd | 349 | |
ec6ceb18 | 350 | if (is_path(where)) |
6b1dc2bd LP |
351 | path_kill_slashes(where); |
352 | ||
b9f111b9 ZJS |
353 | noauto = fstab_test_yes_no_option(me->mnt_opts, "noauto\0" "auto\0"); |
354 | nofail = fstab_test_yes_no_option(me->mnt_opts, "nofail\0" "fail\0"); | |
5607d856 ZJS |
355 | log_debug("Found entry what=%s where=%s type=%s nofail=%s noauto=%s", |
356 | what, where, me->mnt_type, | |
357 | yes_no(noauto), yes_no(nofail)); | |
6b1dc2bd LP |
358 | |
359 | if (streq(me->mnt_type, "swap")) | |
5607d856 | 360 | k = add_swap(what, me, noauto, nofail); |
5e398e54 | 361 | else { |
5607d856 | 362 | bool automount; |
80c3b720 | 363 | const char *post; |
5e398e54 | 364 | |
b9f111b9 ZJS |
365 | automount = fstab_test_option(me->mnt_opts, |
366 | "comment=systemd.automount\0" | |
367 | "x-systemd.automount\0"); | |
e48fdd84 | 368 | if (initrd) |
700e07ff | 369 | post = SPECIAL_INITRD_FS_TARGET; |
e48fdd84 | 370 | else if (mount_in_initrd(me)) |
9e5f0f92 | 371 | post = SPECIAL_INITRD_ROOT_FS_TARGET; |
e48fdd84 | 372 | else if (mount_is_network(me)) |
0c17fbce | 373 | post = SPECIAL_REMOTE_FS_TARGET; |
e48fdd84 | 374 | else |
0c17fbce | 375 | post = SPECIAL_LOCAL_FS_TARGET; |
5e398e54 | 376 | |
6db615c1 LP |
377 | k = add_mount(what, |
378 | where, | |
379 | me->mnt_type, | |
380 | me->mnt_opts, | |
381 | me->mnt_passno, | |
382 | noauto, | |
383 | nofail, | |
384 | automount, | |
385 | post, | |
386 | fstab_path); | |
5e398e54 | 387 | } |
6b1dc2bd | 388 | |
6b1dc2bd LP |
389 | if (k < 0) |
390 | r = k; | |
391 | } | |
392 | ||
6b1dc2bd LP |
393 | return r; |
394 | } | |
395 | ||
6db615c1 | 396 | static int add_root_mount(void) { |
75a59316 ZJS |
397 | _cleanup_free_ char *what = NULL; |
398 | const char *opts; | |
5e398e54 | 399 | |
093c2cfe TH |
400 | if (isempty(arg_root_what)) { |
401 | log_debug("Could not find a root= entry on the kernel command line."); | |
402 | return 0; | |
135b5212 | 403 | } |
5e398e54 | 404 | |
093c2cfe TH |
405 | what = fstab_node_to_udev_node(arg_root_what); |
406 | if (!what) | |
171181bc | 407 | return log_oom(); |
093c2cfe | 408 | |
6db615c1 | 409 | if (!arg_root_options) |
75a59316 ZJS |
410 | opts = arg_root_rw > 0 ? "rw" : "ro"; |
411 | else if (arg_root_rw >= 0 || | |
d15d0333 | 412 | !fstab_test_option(arg_root_options, "ro\0" "rw\0")) |
63c372cb | 413 | opts = strjoina(arg_root_options, ",", arg_root_rw > 0 ? "rw" : "ro"); |
75a59316 ZJS |
414 | else |
415 | opts = arg_root_options; | |
5e398e54 | 416 | |
6db615c1 LP |
417 | log_debug("Found entry what=%s where=/sysroot type=%s", what, strna(arg_root_fstype)); |
418 | return add_mount(what, | |
419 | "/sysroot", | |
420 | arg_root_fstype, | |
75a59316 | 421 | opts, |
093c2cfe | 422 | is_device_path(what) ? 1 : 0, |
5ecdcf41 LP |
423 | false, |
424 | false, | |
6db615c1 LP |
425 | false, |
426 | SPECIAL_INITRD_ROOT_FS_TARGET, | |
427 | "/proc/cmdline"); | |
5e398e54 TG |
428 | } |
429 | ||
9f103625 TH |
430 | static int add_usr_mount(void) { |
431 | _cleanup_free_ char *what = NULL; | |
432 | const char *opts; | |
433 | ||
434 | if (!arg_usr_what && !arg_usr_fstype && !arg_usr_options) | |
435 | return 0; | |
436 | ||
437 | if (arg_root_what && !arg_usr_what) { | |
438 | arg_usr_what = strdup(arg_root_what); | |
439 | ||
440 | if (!arg_usr_what) | |
441 | return log_oom(); | |
442 | } | |
443 | ||
444 | if (arg_root_fstype && !arg_usr_fstype) { | |
445 | arg_usr_fstype = strdup(arg_root_fstype); | |
446 | ||
447 | if (!arg_usr_fstype) | |
448 | return log_oom(); | |
449 | } | |
450 | ||
451 | if (arg_root_options && !arg_usr_options) { | |
452 | arg_usr_options = strdup(arg_root_options); | |
453 | ||
454 | if (!arg_usr_options) | |
455 | return log_oom(); | |
456 | } | |
457 | ||
eb580002 | 458 | if (!arg_usr_what) |
9f103625 TH |
459 | return 0; |
460 | ||
461 | what = fstab_node_to_udev_node(arg_usr_what); | |
462 | if (!path_is_absolute(what)) { | |
463 | log_debug("Skipping entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype)); | |
464 | return -1; | |
465 | } | |
466 | ||
eb580002 MM |
467 | if (!arg_usr_options) |
468 | opts = arg_root_rw > 0 ? "rw" : "ro"; | |
d15d0333 | 469 | else if (!fstab_test_option(arg_usr_options, "ro\0" "rw\0")) |
63c372cb | 470 | opts = strjoina(arg_usr_options, ",", arg_root_rw > 0 ? "rw" : "ro"); |
eb580002 MM |
471 | else |
472 | opts = arg_usr_options; | |
9f103625 TH |
473 | |
474 | log_debug("Found entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype)); | |
475 | return add_mount(what, | |
476 | "/sysroot/usr", | |
477 | arg_usr_fstype, | |
478 | opts, | |
479 | 1, | |
480 | false, | |
481 | false, | |
482 | false, | |
483 | SPECIAL_INITRD_ROOT_FS_TARGET, | |
484 | "/proc/cmdline"); | |
485 | } | |
486 | ||
059cb385 | 487 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
74df0fca | 488 | int r; |
94734142 | 489 | |
9f103625 TH |
490 | /* root=, usr=, usrfstype= and roofstype= may occur more than once, the last |
491 | * instance should take precedence. In the case of multiple rootflags= | |
492 | * or usrflags= the arguments should be concatenated */ | |
6db615c1 | 493 | |
059cb385 | 494 | if (STR_IN_SET(key, "fstab", "rd.fstab") && value) { |
e48fdd84 | 495 | |
059cb385 | 496 | r = parse_boolean(value); |
141a79f4 | 497 | if (r < 0) |
059cb385 | 498 | log_warning("Failed to parse fstab switch %s. Ignoring.", value); |
141a79f4 | 499 | else |
e48fdd84 | 500 | arg_fstab_enabled = r; |
94734142 | 501 | |
6db615c1 LP |
502 | } else if (streq(key, "root") && value) { |
503 | ||
f88dc3ed | 504 | if (free_and_strdup(&arg_root_what, value) < 0) |
6db615c1 LP |
505 | return log_oom(); |
506 | ||
507 | } else if (streq(key, "rootfstype") && value) { | |
508 | ||
f88dc3ed | 509 | if (free_and_strdup(&arg_root_fstype, value) < 0) |
6db615c1 LP |
510 | return log_oom(); |
511 | ||
512 | } else if (streq(key, "rootflags") && value) { | |
513 | char *o; | |
514 | ||
515 | o = arg_root_options ? | |
516 | strjoin(arg_root_options, ",", value, NULL) : | |
517 | strdup(value); | |
518 | if (!o) | |
519 | return log_oom(); | |
520 | ||
521 | free(arg_root_options); | |
522 | arg_root_options = o; | |
523 | ||
9f103625 TH |
524 | } else if (streq(key, "mount.usr") && value) { |
525 | ||
526 | if (free_and_strdup(&arg_usr_what, value) < 0) | |
527 | return log_oom(); | |
528 | ||
529 | } else if (streq(key, "mount.usrfstype") && value) { | |
530 | ||
531 | if (free_and_strdup(&arg_usr_fstype, value) < 0) | |
532 | return log_oom(); | |
533 | ||
534 | } else if (streq(key, "mount.usrflags") && value) { | |
535 | char *o; | |
536 | ||
537 | o = arg_usr_options ? | |
538 | strjoin(arg_usr_options, ",", value, NULL) : | |
539 | strdup(value); | |
540 | if (!o) | |
541 | return log_oom(); | |
542 | ||
543 | free(arg_usr_options); | |
544 | arg_usr_options = o; | |
545 | ||
6db615c1 LP |
546 | } else if (streq(key, "rw") && !value) |
547 | arg_root_rw = true; | |
548 | else if (streq(key, "ro") && !value) | |
549 | arg_root_rw = false; | |
94734142 | 550 | |
d0aa9ce5 | 551 | return 0; |
94734142 LP |
552 | } |
553 | ||
6b1dc2bd | 554 | int main(int argc, char *argv[]) { |
e48fdd84 | 555 | int r = 0; |
6b1dc2bd | 556 | |
07719a21 LP |
557 | if (argc > 1 && argc != 4) { |
558 | log_error("This program takes three or no arguments."); | |
6b1dc2bd LP |
559 | return EXIT_FAILURE; |
560 | } | |
561 | ||
562 | if (argc > 1) | |
563 | arg_dest = argv[1]; | |
564 | ||
a6903061 | 565 | log_set_target(LOG_TARGET_SAFE); |
6b1dc2bd LP |
566 | log_parse_environment(); |
567 | log_open(); | |
568 | ||
6b1dc2bd LP |
569 | umask(0022); |
570 | ||
b5884878 LP |
571 | r = parse_proc_cmdline(parse_proc_cmdline_item); |
572 | if (r < 0) | |
da927ba9 | 573 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); |
94734142 | 574 | |
9f103625 TH |
575 | /* Always honour root= and usr= in the kernel command line if we are in an initrd */ |
576 | if (in_initrd()) { | |
6db615c1 | 577 | r = add_root_mount(); |
9f103625 TH |
578 | if (r == 0) |
579 | r = add_usr_mount(); | |
580 | } | |
5e398e54 | 581 | |
e48fdd84 LP |
582 | /* Honour /etc/fstab only when that's enabled */ |
583 | if (arg_fstab_enabled) { | |
584 | int k; | |
ac4785b0 | 585 | |
75a59316 ZJS |
586 | log_debug("Parsing /etc/fstab"); |
587 | ||
e48fdd84 LP |
588 | /* Parse the local /etc/fstab, possibly from the initrd */ |
589 | k = parse_fstab(false); | |
590 | if (k < 0) | |
591 | r = k; | |
ac4785b0 | 592 | |
e48fdd84 LP |
593 | /* If running in the initrd also parse the /etc/fstab from the host */ |
594 | if (in_initrd()) { | |
75a59316 ZJS |
595 | log_debug("Parsing /sysroot/etc/fstab"); |
596 | ||
e48fdd84 LP |
597 | k = parse_fstab(true); |
598 | if (k < 0) | |
599 | r = k; | |
600 | } | |
601 | } | |
6b1dc2bd | 602 | |
126cc760 | 603 | free(arg_root_what); |
59cfa62f LP |
604 | free(arg_root_fstype); |
605 | free(arg_root_options); | |
606 | ||
607 | free(arg_usr_what); | |
608 | free(arg_usr_fstype); | |
609 | free(arg_usr_options); | |
126cc760 | 610 | |
e48fdd84 | 611 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
6b1dc2bd | 612 | } |