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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" | |
32 | #include "mount-setup.h" | |
33 | #include "special.h" | |
34 | #include "mkdir.h" | |
a5c32cff | 35 | #include "fileio.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 | |
6b1dc2bd | 50 | static int mount_find_pri(struct mntent *me, int *ret) { |
4f52d3fe | 51 | char *end, *opt; |
6b1dc2bd LP |
52 | unsigned long r; |
53 | ||
54 | assert(me); | |
55 | assert(ret); | |
56 | ||
4f52d3fe ZJS |
57 | opt = hasmntopt(me, "pri"); |
58 | if (!opt) | |
6b1dc2bd LP |
59 | return 0; |
60 | ||
4f52d3fe | 61 | opt += strlen("pri"); |
4f52d3fe ZJS |
62 | if (*opt != '=') |
63 | return -EINVAL; | |
6b1dc2bd LP |
64 | |
65 | errno = 0; | |
4f52d3fe | 66 | r = strtoul(opt + 1, &end, 10); |
8333c77e | 67 | if (errno > 0) |
6b1dc2bd LP |
68 | return -errno; |
69 | ||
4f52d3fe | 70 | if (end == opt + 1 || (*end != ',' && *end != 0)) |
6b1dc2bd LP |
71 | return -EINVAL; |
72 | ||
73 | *ret = (int) r; | |
74 | return 1; | |
75 | } | |
76 | ||
5607d856 ZJS |
77 | static int add_swap( |
78 | const char *what, | |
79 | struct mntent *me, | |
80 | bool noauto, | |
81 | bool nofail) { | |
82 | ||
1dc2ced4 | 83 | _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL; |
7fd1b19b | 84 | _cleanup_fclose_ FILE *f = NULL; |
6b1dc2bd LP |
85 | int r, pri = -1; |
86 | ||
87 | assert(what); | |
88 | assert(me); | |
89 | ||
689aede8 LP |
90 | if (detect_container(NULL) > 0) { |
91 | log_info("Running in a container, ignoring fstab swap entry for %s.", what); | |
92 | return 0; | |
93 | } | |
94 | ||
6b1dc2bd LP |
95 | r = mount_find_pri(me, &pri); |
96 | if (r < 0) { | |
97 | log_error("Failed to parse priority"); | |
4f52d3fe ZJS |
98 | return r; |
99 | } | |
100 | ||
6b1dc2bd | 101 | name = unit_name_from_path(what, ".swap"); |
d0aa9ce5 ZJS |
102 | if (!name) |
103 | return log_oom(); | |
6b1dc2bd | 104 | |
b7def684 | 105 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
106 | if (!unit) |
107 | return log_oom(); | |
6b1dc2bd LP |
108 | |
109 | f = fopen(unit, "wxe"); | |
110 | if (!f) { | |
67ab5f76 TG |
111 | if (errno == EEXIST) |
112 | log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
113 | else | |
114 | log_error("Failed to create unit file %s: %m", unit); | |
d0aa9ce5 | 115 | return -errno; |
6b1dc2bd LP |
116 | } |
117 | ||
6b1dc2bd | 118 | fprintf(f, |
64347fc2 TG |
119 | "# Automatically generated by systemd-fstab-generator\n\n" |
120 | "[Unit]\n" | |
c3834f9b LP |
121 | "SourcePath=/etc/fstab\n" |
122 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n" | |
6b1dc2bd LP |
123 | "[Swap]\n" |
124 | "What=%s\n", | |
125 | what); | |
126 | ||
47cb901e LP |
127 | /* Note that we currently pass the priority field twice, once |
128 | * in Priority=, and once in Options= */ | |
6b1dc2bd | 129 | if (pri >= 0) |
4f52d3fe ZJS |
130 | fprintf(f, "Priority=%i\n", pri); |
131 | ||
47cb901e LP |
132 | if (!isempty(me->mnt_opts) && !streq(me->mnt_opts, "defaults")) |
133 | fprintf(f, "Options=%s\n", me->mnt_opts); | |
6b1dc2bd | 134 | |
47cb901e LP |
135 | r = fflush_and_check(f); |
136 | if (r < 0) { | |
da927ba9 | 137 | log_error_errno(r, "Failed to write unit file %s: %m", unit); |
47cb901e | 138 | return r; |
6b1dc2bd LP |
139 | } |
140 | ||
b3208b66 ZJS |
141 | /* use what as where, to have a nicer error message */ |
142 | r = generator_write_timeouts(arg_dest, what, what, me->mnt_opts, NULL); | |
143 | if (r < 0) | |
144 | return r; | |
145 | ||
4e82fe52 | 146 | if (!noauto) { |
5607d856 ZJS |
147 | lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET, |
148 | nofail ? ".wants/" : ".requires/", name, NULL); | |
4e82fe52 TG |
149 | if (!lnk) |
150 | return log_oom(); | |
151 | ||
152 | mkdir_parents_label(lnk, 0755); | |
153 | if (symlink(unit, lnk) < 0) { | |
154 | log_error("Failed to create symlink %s: %m", lnk); | |
155 | return -errno; | |
156 | } | |
157 | } | |
158 | ||
d0aa9ce5 | 159 | return 0; |
6b1dc2bd LP |
160 | } |
161 | ||
6b1dc2bd LP |
162 | static bool mount_is_network(struct mntent *me) { |
163 | assert(me); | |
164 | ||
165 | return | |
166 | hasmntopt(me, "_netdev") || | |
167 | fstype_is_network(me->mnt_type); | |
168 | } | |
169 | ||
3d22d1ab TG |
170 | static bool mount_in_initrd(struct mntent *me) { |
171 | assert(me); | |
172 | ||
173 | return | |
174 | hasmntopt(me, "x-initrd.mount") || | |
175 | streq(me->mnt_dir, "/usr"); | |
176 | } | |
177 | ||
e8d2f6cd LP |
178 | static int add_mount( |
179 | const char *what, | |
180 | const char *where, | |
6db615c1 | 181 | const char *fstype, |
e8d2f6cd LP |
182 | const char *opts, |
183 | int passno, | |
184 | bool noauto, | |
185 | bool nofail, | |
186 | bool automount, | |
e8d2f6cd | 187 | const char *post, |
e8d2f6cd | 188 | const char *source) { |
e48fdd84 | 189 | |
7fd1b19b | 190 | _cleanup_free_ char |
1dc2ced4 | 191 | *name = NULL, *unit = NULL, *lnk = NULL, |
29686440 ZJS |
192 | *automount_name = NULL, *automount_unit = NULL, |
193 | *filtered = NULL; | |
7fd1b19b | 194 | _cleanup_fclose_ FILE *f = NULL; |
94192cda | 195 | int r; |
6b1dc2bd LP |
196 | |
197 | assert(what); | |
198 | assert(where); | |
5e398e54 TG |
199 | assert(opts); |
200 | assert(source); | |
6b1dc2bd | 201 | |
6db615c1 | 202 | if (streq_ptr(fstype, "autofs")) |
6b1dc2bd LP |
203 | return 0; |
204 | ||
205 | if (!is_path(where)) { | |
206 | log_warning("Mount point %s is not a valid path, ignoring.", where); | |
207 | return 0; | |
208 | } | |
209 | ||
210 | if (mount_point_is_api(where) || | |
211 | mount_point_ignore(where)) | |
212 | return 0; | |
213 | ||
e48fdd84 | 214 | if (path_equal(where, "/")) { |
5ecdcf41 | 215 | /* The root disk is not an option */ |
e48fdd84 LP |
216 | automount = false; |
217 | noauto = false; | |
218 | nofail = false; | |
219 | } | |
220 | ||
6b1dc2bd | 221 | name = unit_name_from_path(where, ".mount"); |
d0aa9ce5 ZJS |
222 | if (!name) |
223 | return log_oom(); | |
6b1dc2bd | 224 | |
b7def684 | 225 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
226 | if (!unit) |
227 | return log_oom(); | |
6b1dc2bd LP |
228 | |
229 | f = fopen(unit, "wxe"); | |
230 | if (!f) { | |
67ab5f76 TG |
231 | if (errno == EEXIST) |
232 | log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
233 | else | |
234 | log_error("Failed to create unit file %s: %m", unit); | |
d0aa9ce5 | 235 | return -errno; |
6b1dc2bd LP |
236 | } |
237 | ||
5e398e54 | 238 | fprintf(f, |
c3834f9b LP |
239 | "# Automatically generated by systemd-fstab-generator\n\n" |
240 | "[Unit]\n" | |
241 | "SourcePath=%s\n" | |
242 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n", | |
243 | source); | |
6b1dc2bd | 244 | |
700e07ff | 245 | if (post && !noauto && !nofail && !automount) |
5ecdcf41 | 246 | fprintf(f, "Before=%s\n", post); |
6b1dc2bd | 247 | |
e48fdd84 | 248 | if (passno != 0) { |
6db615c1 | 249 | r = generator_write_fsck_deps(f, arg_dest, what, where, fstype); |
e48fdd84 LP |
250 | if (r < 0) |
251 | return r; | |
252 | } | |
64e70e4b | 253 | |
6b1dc2bd LP |
254 | fprintf(f, |
255 | "\n" | |
256 | "[Mount]\n" | |
257 | "What=%s\n" | |
6db615c1 | 258 | "Where=%s\n", |
6b1dc2bd | 259 | what, |
6db615c1 LP |
260 | where); |
261 | ||
262 | if (!isempty(fstype) && !streq(fstype, "auto")) | |
263 | fprintf(f, "Type=%s\n", fstype); | |
6b1dc2bd | 264 | |
29686440 ZJS |
265 | r = generator_write_timeouts(arg_dest, what, where, opts, &filtered); |
266 | if (r < 0) | |
267 | return r; | |
268 | ||
269 | if (!isempty(filtered) && !streq(filtered, "defaults")) | |
270 | fprintf(f, "Options=%s\n", filtered); | |
5e398e54 | 271 | |
6b1dc2bd LP |
272 | fflush(f); |
273 | if (ferror(f)) { | |
40b8acd0 | 274 | log_error("Failed to write unit file %s: %m", unit); |
d0aa9ce5 | 275 | return -errno; |
6b1dc2bd LP |
276 | } |
277 | ||
5ecdcf41 LP |
278 | if (!noauto && post) { |
279 | lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL); | |
280 | if (!lnk) | |
281 | return log_oom(); | |
282 | ||
283 | mkdir_parents_label(lnk, 0755); | |
284 | if (symlink(unit, lnk) < 0) { | |
285 | log_error("Failed to create symlink %s: %m", lnk); | |
286 | return -errno; | |
6b1dc2bd | 287 | } |
6b1dc2bd LP |
288 | } |
289 | ||
e48fdd84 | 290 | if (automount) { |
6b1dc2bd | 291 | automount_name = unit_name_from_path(where, ".automount"); |
01264ad1 | 292 | if (!automount_name) |
d0aa9ce5 | 293 | return log_oom(); |
6b1dc2bd | 294 | |
b7def684 | 295 | automount_unit = strjoin(arg_dest, "/", automount_name, NULL); |
d0aa9ce5 ZJS |
296 | if (!automount_unit) |
297 | return log_oom(); | |
6b1dc2bd LP |
298 | |
299 | fclose(f); | |
300 | f = fopen(automount_unit, "wxe"); | |
301 | if (!f) { | |
40b8acd0 | 302 | log_error("Failed to create unit file %s: %m", automount_unit); |
d0aa9ce5 | 303 | return -errno; |
6b1dc2bd LP |
304 | } |
305 | ||
306 | fprintf(f, | |
307 | "# Automatically generated by systemd-fstab-generator\n\n" | |
308 | "[Unit]\n" | |
c3834f9b LP |
309 | "SourcePath=%s\n" |
310 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n", | |
700e07ff HH |
311 | source); |
312 | ||
313 | if (post) | |
314 | fprintf(f, | |
e48fdd84 | 315 | "Before=%s\n", |
700e07ff HH |
316 | post); |
317 | ||
318 | fprintf(f, | |
6b1dc2bd LP |
319 | "[Automount]\n" |
320 | "Where=%s\n", | |
6b1dc2bd LP |
321 | where); |
322 | ||
323 | fflush(f); | |
324 | if (ferror(f)) { | |
40b8acd0 | 325 | log_error("Failed to write unit file %s: %m", automount_unit); |
d0aa9ce5 | 326 | return -errno; |
6b1dc2bd LP |
327 | } |
328 | ||
329 | free(lnk); | |
b7def684 | 330 | lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL); |
d0aa9ce5 ZJS |
331 | if (!lnk) |
332 | return log_oom(); | |
6b1dc2bd | 333 | |
d2e54fae | 334 | mkdir_parents_label(lnk, 0755); |
6b1dc2bd | 335 | if (symlink(automount_unit, lnk) < 0) { |
40b8acd0 | 336 | log_error("Failed to create symlink %s: %m", lnk); |
d0aa9ce5 | 337 | return -errno; |
6b1dc2bd LP |
338 | } |
339 | } | |
340 | ||
d0aa9ce5 | 341 | return 0; |
6b1dc2bd LP |
342 | } |
343 | ||
e48fdd84 | 344 | static int parse_fstab(bool initrd) { |
6db615c1 | 345 | _cleanup_endmntent_ FILE *f = NULL; |
e48fdd84 | 346 | const char *fstab_path; |
6b1dc2bd | 347 | struct mntent *me; |
e48fdd84 | 348 | int r = 0; |
6b1dc2bd | 349 | |
e48fdd84 LP |
350 | fstab_path = initrd ? "/sysroot/etc/fstab" : "/etc/fstab"; |
351 | f = setmntent(fstab_path, "re"); | |
6b1dc2bd LP |
352 | if (!f) { |
353 | if (errno == ENOENT) | |
354 | return 0; | |
355 | ||
e48fdd84 | 356 | log_error("Failed to open %s: %m", fstab_path); |
6b1dc2bd LP |
357 | return -errno; |
358 | } | |
359 | ||
360 | while ((me = getmntent(f))) { | |
7fd1b19b | 361 | _cleanup_free_ char *where = NULL, *what = NULL; |
5607d856 | 362 | bool noauto, nofail; |
6b1dc2bd LP |
363 | int k; |
364 | ||
3d22d1ab TG |
365 | if (initrd && !mount_in_initrd(me)) |
366 | continue; | |
367 | ||
6b1dc2bd | 368 | what = fstab_node_to_udev_node(me->mnt_fsname); |
e48fdd84 LP |
369 | if (!what) |
370 | return log_oom(); | |
371 | ||
689aede8 LP |
372 | if (detect_container(NULL) > 0 && is_device_path(what)) { |
373 | log_info("Running in a container, ignoring fstab device entry for %s.", what); | |
374 | continue; | |
375 | } | |
376 | ||
e48fdd84 LP |
377 | where = initrd ? strappend("/sysroot/", me->mnt_dir) : strdup(me->mnt_dir); |
378 | if (!where) | |
5862d652 | 379 | return log_oom(); |
6b1dc2bd | 380 | |
ec6ceb18 | 381 | if (is_path(where)) |
6b1dc2bd LP |
382 | path_kill_slashes(where); |
383 | ||
5607d856 ZJS |
384 | noauto = !!hasmntopt(me, "noauto"); |
385 | nofail = !!hasmntopt(me, "nofail"); | |
386 | log_debug("Found entry what=%s where=%s type=%s nofail=%s noauto=%s", | |
387 | what, where, me->mnt_type, | |
388 | yes_no(noauto), yes_no(nofail)); | |
6b1dc2bd LP |
389 | |
390 | if (streq(me->mnt_type, "swap")) | |
5607d856 | 391 | k = add_swap(what, me, noauto, nofail); |
5e398e54 | 392 | else { |
5607d856 | 393 | bool automount; |
80c3b720 | 394 | const char *post; |
5e398e54 | 395 | |
5e398e54 TG |
396 | automount = |
397 | hasmntopt(me, "comment=systemd.automount") || | |
398 | hasmntopt(me, "x-systemd.automount"); | |
700e07ff | 399 | |
e48fdd84 | 400 | if (initrd) |
700e07ff | 401 | post = SPECIAL_INITRD_FS_TARGET; |
e48fdd84 | 402 | else if (mount_in_initrd(me)) |
9e5f0f92 | 403 | post = SPECIAL_INITRD_ROOT_FS_TARGET; |
e48fdd84 | 404 | else if (mount_is_network(me)) |
0c17fbce | 405 | post = SPECIAL_REMOTE_FS_TARGET; |
e48fdd84 | 406 | else |
0c17fbce | 407 | post = SPECIAL_LOCAL_FS_TARGET; |
5e398e54 | 408 | |
6db615c1 LP |
409 | k = add_mount(what, |
410 | where, | |
411 | me->mnt_type, | |
412 | me->mnt_opts, | |
413 | me->mnt_passno, | |
414 | noauto, | |
415 | nofail, | |
416 | automount, | |
417 | post, | |
418 | fstab_path); | |
5e398e54 | 419 | } |
6b1dc2bd | 420 | |
6b1dc2bd LP |
421 | if (k < 0) |
422 | r = k; | |
423 | } | |
424 | ||
6b1dc2bd LP |
425 | return r; |
426 | } | |
427 | ||
6db615c1 | 428 | static int add_root_mount(void) { |
75a59316 ZJS |
429 | _cleanup_free_ char *what = NULL; |
430 | const char *opts; | |
5e398e54 | 431 | |
6db615c1 | 432 | if (isempty(arg_root_what)) { |
3f85ef0f | 433 | log_debug("Could not find a root= entry on the kernel command line."); |
135b5212 HH |
434 | return 0; |
435 | } | |
5e398e54 | 436 | |
6db615c1 LP |
437 | what = fstab_node_to_udev_node(arg_root_what); |
438 | if (!path_is_absolute(what)) { | |
439 | log_debug("Skipping entry what=%s where=/sysroot type=%s", what, strna(arg_root_fstype)); | |
135b5212 HH |
440 | return 0; |
441 | } | |
5e398e54 | 442 | |
6db615c1 | 443 | if (!arg_root_options) |
75a59316 ZJS |
444 | opts = arg_root_rw > 0 ? "rw" : "ro"; |
445 | else if (arg_root_rw >= 0 || | |
446 | (!mount_test_option(arg_root_options, "ro") && | |
447 | !mount_test_option(arg_root_options, "rw"))) | |
8085f163 | 448 | opts = strappenda(arg_root_options, ",", arg_root_rw > 0 ? "rw" : "ro"); |
75a59316 ZJS |
449 | else |
450 | opts = arg_root_options; | |
5e398e54 | 451 | |
6db615c1 LP |
452 | log_debug("Found entry what=%s where=/sysroot type=%s", what, strna(arg_root_fstype)); |
453 | return add_mount(what, | |
454 | "/sysroot", | |
455 | arg_root_fstype, | |
75a59316 | 456 | opts, |
6db615c1 | 457 | 1, |
5ecdcf41 LP |
458 | false, |
459 | false, | |
6db615c1 LP |
460 | false, |
461 | SPECIAL_INITRD_ROOT_FS_TARGET, | |
462 | "/proc/cmdline"); | |
5e398e54 TG |
463 | } |
464 | ||
9f103625 TH |
465 | static int add_usr_mount(void) { |
466 | _cleanup_free_ char *what = NULL; | |
467 | const char *opts; | |
468 | ||
469 | if (!arg_usr_what && !arg_usr_fstype && !arg_usr_options) | |
470 | return 0; | |
471 | ||
472 | if (arg_root_what && !arg_usr_what) { | |
473 | arg_usr_what = strdup(arg_root_what); | |
474 | ||
475 | if (!arg_usr_what) | |
476 | return log_oom(); | |
477 | } | |
478 | ||
479 | if (arg_root_fstype && !arg_usr_fstype) { | |
480 | arg_usr_fstype = strdup(arg_root_fstype); | |
481 | ||
482 | if (!arg_usr_fstype) | |
483 | return log_oom(); | |
484 | } | |
485 | ||
486 | if (arg_root_options && !arg_usr_options) { | |
487 | arg_usr_options = strdup(arg_root_options); | |
488 | ||
489 | if (!arg_usr_options) | |
490 | return log_oom(); | |
491 | } | |
492 | ||
493 | if (!arg_usr_what || !arg_usr_options) | |
494 | return 0; | |
495 | ||
496 | what = fstab_node_to_udev_node(arg_usr_what); | |
497 | if (!path_is_absolute(what)) { | |
498 | log_debug("Skipping entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype)); | |
499 | return -1; | |
500 | } | |
501 | ||
502 | opts = arg_usr_options; | |
503 | ||
504 | log_debug("Found entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype)); | |
505 | return add_mount(what, | |
506 | "/sysroot/usr", | |
507 | arg_usr_fstype, | |
508 | opts, | |
509 | 1, | |
510 | false, | |
511 | false, | |
512 | false, | |
513 | SPECIAL_INITRD_ROOT_FS_TARGET, | |
514 | "/proc/cmdline"); | |
515 | } | |
516 | ||
059cb385 | 517 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
74df0fca | 518 | int r; |
94734142 | 519 | |
9f103625 TH |
520 | /* root=, usr=, usrfstype= and roofstype= may occur more than once, the last |
521 | * instance should take precedence. In the case of multiple rootflags= | |
522 | * or usrflags= the arguments should be concatenated */ | |
6db615c1 | 523 | |
059cb385 | 524 | if (STR_IN_SET(key, "fstab", "rd.fstab") && value) { |
e48fdd84 | 525 | |
059cb385 | 526 | r = parse_boolean(value); |
141a79f4 | 527 | if (r < 0) |
059cb385 | 528 | log_warning("Failed to parse fstab switch %s. Ignoring.", value); |
141a79f4 | 529 | else |
e48fdd84 | 530 | arg_fstab_enabled = r; |
94734142 | 531 | |
6db615c1 LP |
532 | } else if (streq(key, "root") && value) { |
533 | ||
f88dc3ed | 534 | if (free_and_strdup(&arg_root_what, value) < 0) |
6db615c1 LP |
535 | return log_oom(); |
536 | ||
537 | } else if (streq(key, "rootfstype") && value) { | |
538 | ||
f88dc3ed | 539 | if (free_and_strdup(&arg_root_fstype, value) < 0) |
6db615c1 LP |
540 | return log_oom(); |
541 | ||
542 | } else if (streq(key, "rootflags") && value) { | |
543 | char *o; | |
544 | ||
545 | o = arg_root_options ? | |
546 | strjoin(arg_root_options, ",", value, NULL) : | |
547 | strdup(value); | |
548 | if (!o) | |
549 | return log_oom(); | |
550 | ||
551 | free(arg_root_options); | |
552 | arg_root_options = o; | |
553 | ||
9f103625 TH |
554 | } else if (streq(key, "mount.usr") && value) { |
555 | ||
556 | if (free_and_strdup(&arg_usr_what, value) < 0) | |
557 | return log_oom(); | |
558 | ||
559 | } else if (streq(key, "mount.usrfstype") && value) { | |
560 | ||
561 | if (free_and_strdup(&arg_usr_fstype, value) < 0) | |
562 | return log_oom(); | |
563 | ||
564 | } else if (streq(key, "mount.usrflags") && value) { | |
565 | char *o; | |
566 | ||
567 | o = arg_usr_options ? | |
568 | strjoin(arg_usr_options, ",", value, NULL) : | |
569 | strdup(value); | |
570 | if (!o) | |
571 | return log_oom(); | |
572 | ||
573 | free(arg_usr_options); | |
574 | arg_usr_options = o; | |
575 | ||
6db615c1 LP |
576 | } else if (streq(key, "rw") && !value) |
577 | arg_root_rw = true; | |
578 | else if (streq(key, "ro") && !value) | |
579 | arg_root_rw = false; | |
94734142 | 580 | |
d0aa9ce5 | 581 | return 0; |
94734142 LP |
582 | } |
583 | ||
6b1dc2bd | 584 | int main(int argc, char *argv[]) { |
e48fdd84 | 585 | int r = 0; |
6b1dc2bd | 586 | |
07719a21 LP |
587 | if (argc > 1 && argc != 4) { |
588 | log_error("This program takes three or no arguments."); | |
6b1dc2bd LP |
589 | return EXIT_FAILURE; |
590 | } | |
591 | ||
592 | if (argc > 1) | |
593 | arg_dest = argv[1]; | |
594 | ||
a6903061 | 595 | log_set_target(LOG_TARGET_SAFE); |
6b1dc2bd LP |
596 | log_parse_environment(); |
597 | log_open(); | |
598 | ||
6b1dc2bd LP |
599 | umask(0022); |
600 | ||
b5884878 LP |
601 | r = parse_proc_cmdline(parse_proc_cmdline_item); |
602 | if (r < 0) | |
da927ba9 | 603 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); |
94734142 | 604 | |
9f103625 TH |
605 | /* Always honour root= and usr= in the kernel command line if we are in an initrd */ |
606 | if (in_initrd()) { | |
6db615c1 | 607 | r = add_root_mount(); |
9f103625 TH |
608 | if (r == 0) |
609 | r = add_usr_mount(); | |
610 | } | |
5e398e54 | 611 | |
e48fdd84 LP |
612 | /* Honour /etc/fstab only when that's enabled */ |
613 | if (arg_fstab_enabled) { | |
614 | int k; | |
ac4785b0 | 615 | |
75a59316 ZJS |
616 | log_debug("Parsing /etc/fstab"); |
617 | ||
e48fdd84 LP |
618 | /* Parse the local /etc/fstab, possibly from the initrd */ |
619 | k = parse_fstab(false); | |
620 | if (k < 0) | |
621 | r = k; | |
ac4785b0 | 622 | |
e48fdd84 LP |
623 | /* If running in the initrd also parse the /etc/fstab from the host */ |
624 | if (in_initrd()) { | |
75a59316 ZJS |
625 | log_debug("Parsing /sysroot/etc/fstab"); |
626 | ||
e48fdd84 LP |
627 | k = parse_fstab(true); |
628 | if (k < 0) | |
629 | r = k; | |
630 | } | |
631 | } | |
6b1dc2bd | 632 | |
126cc760 ZJS |
633 | free(arg_root_what); |
634 | ||
e48fdd84 | 635 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
6b1dc2bd | 636 | } |