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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 | ||
77 | static int add_swap(const char *what, struct mntent *me) { | |
1dc2ced4 | 78 | _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL; |
7fd1b19b | 79 | _cleanup_fclose_ FILE *f = NULL; |
86b23b07 | 80 | |
4e82fe52 | 81 | bool noauto; |
6b1dc2bd LP |
82 | int r, pri = -1; |
83 | ||
84 | assert(what); | |
85 | assert(me); | |
86 | ||
689aede8 LP |
87 | if (detect_container(NULL) > 0) { |
88 | log_info("Running in a container, ignoring fstab swap entry for %s.", what); | |
89 | return 0; | |
90 | } | |
91 | ||
6b1dc2bd LP |
92 | r = mount_find_pri(me, &pri); |
93 | if (r < 0) { | |
94 | log_error("Failed to parse priority"); | |
4f52d3fe ZJS |
95 | return r; |
96 | } | |
97 | ||
4e82fe52 TG |
98 | noauto = !!hasmntopt(me, "noauto"); |
99 | ||
6b1dc2bd | 100 | name = unit_name_from_path(what, ".swap"); |
d0aa9ce5 ZJS |
101 | if (!name) |
102 | return log_oom(); | |
6b1dc2bd | 103 | |
b7def684 | 104 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
105 | if (!unit) |
106 | return log_oom(); | |
6b1dc2bd LP |
107 | |
108 | f = fopen(unit, "wxe"); | |
109 | if (!f) { | |
67ab5f76 TG |
110 | if (errno == EEXIST) |
111 | log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
112 | else | |
113 | log_error("Failed to create unit file %s: %m", unit); | |
d0aa9ce5 | 114 | return -errno; |
6b1dc2bd LP |
115 | } |
116 | ||
6b1dc2bd | 117 | fprintf(f, |
64347fc2 TG |
118 | "# Automatically generated by systemd-fstab-generator\n\n" |
119 | "[Unit]\n" | |
c3834f9b LP |
120 | "SourcePath=/etc/fstab\n" |
121 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n" | |
6b1dc2bd LP |
122 | "[Swap]\n" |
123 | "What=%s\n", | |
124 | what); | |
125 | ||
47cb901e LP |
126 | /* Note that we currently pass the priority field twice, once |
127 | * in Priority=, and once in Options= */ | |
6b1dc2bd | 128 | if (pri >= 0) |
4f52d3fe ZJS |
129 | fprintf(f, "Priority=%i\n", pri); |
130 | ||
47cb901e LP |
131 | if (!isempty(me->mnt_opts) && !streq(me->mnt_opts, "defaults")) |
132 | fprintf(f, "Options=%s\n", me->mnt_opts); | |
6b1dc2bd | 133 | |
47cb901e LP |
134 | r = fflush_and_check(f); |
135 | if (r < 0) { | |
136 | log_error("Failed to write unit file %s: %s", unit, strerror(-r)); | |
137 | return r; | |
6b1dc2bd LP |
138 | } |
139 | ||
b3208b66 ZJS |
140 | /* use what as where, to have a nicer error message */ |
141 | r = generator_write_timeouts(arg_dest, what, what, me->mnt_opts, NULL); | |
142 | if (r < 0) | |
143 | return r; | |
144 | ||
4e82fe52 TG |
145 | if (!noauto) { |
146 | lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL); | |
147 | if (!lnk) | |
148 | return log_oom(); | |
149 | ||
150 | mkdir_parents_label(lnk, 0755); | |
151 | if (symlink(unit, lnk) < 0) { | |
152 | log_error("Failed to create symlink %s: %m", lnk); | |
153 | return -errno; | |
154 | } | |
155 | } | |
156 | ||
d0aa9ce5 | 157 | return 0; |
6b1dc2bd LP |
158 | } |
159 | ||
6b1dc2bd LP |
160 | static bool mount_is_network(struct mntent *me) { |
161 | assert(me); | |
162 | ||
163 | return | |
164 | hasmntopt(me, "_netdev") || | |
165 | fstype_is_network(me->mnt_type); | |
166 | } | |
167 | ||
3d22d1ab TG |
168 | static bool mount_in_initrd(struct mntent *me) { |
169 | assert(me); | |
170 | ||
171 | return | |
172 | hasmntopt(me, "x-initrd.mount") || | |
173 | streq(me->mnt_dir, "/usr"); | |
174 | } | |
175 | ||
e8d2f6cd LP |
176 | static int add_mount( |
177 | const char *what, | |
178 | const char *where, | |
6db615c1 | 179 | const char *fstype, |
e8d2f6cd LP |
180 | const char *opts, |
181 | int passno, | |
182 | bool noauto, | |
183 | bool nofail, | |
184 | bool automount, | |
e8d2f6cd | 185 | const char *post, |
e8d2f6cd | 186 | const char *source) { |
e48fdd84 | 187 | |
7fd1b19b | 188 | _cleanup_free_ char |
1dc2ced4 | 189 | *name = NULL, *unit = NULL, *lnk = NULL, |
29686440 ZJS |
190 | *automount_name = NULL, *automount_unit = NULL, |
191 | *filtered = NULL; | |
7fd1b19b | 192 | _cleanup_fclose_ FILE *f = NULL; |
94192cda | 193 | int r; |
6b1dc2bd LP |
194 | |
195 | assert(what); | |
196 | assert(where); | |
5e398e54 TG |
197 | assert(opts); |
198 | assert(source); | |
6b1dc2bd | 199 | |
6db615c1 | 200 | if (streq_ptr(fstype, "autofs")) |
6b1dc2bd LP |
201 | return 0; |
202 | ||
203 | if (!is_path(where)) { | |
204 | log_warning("Mount point %s is not a valid path, ignoring.", where); | |
205 | return 0; | |
206 | } | |
207 | ||
208 | if (mount_point_is_api(where) || | |
209 | mount_point_ignore(where)) | |
210 | return 0; | |
211 | ||
e48fdd84 | 212 | if (path_equal(where, "/")) { |
5ecdcf41 | 213 | /* The root disk is not an option */ |
e48fdd84 LP |
214 | automount = false; |
215 | noauto = false; | |
216 | nofail = false; | |
217 | } | |
218 | ||
6b1dc2bd | 219 | name = unit_name_from_path(where, ".mount"); |
d0aa9ce5 ZJS |
220 | if (!name) |
221 | return log_oom(); | |
6b1dc2bd | 222 | |
b7def684 | 223 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
224 | if (!unit) |
225 | return log_oom(); | |
6b1dc2bd LP |
226 | |
227 | f = fopen(unit, "wxe"); | |
228 | if (!f) { | |
67ab5f76 TG |
229 | if (errno == EEXIST) |
230 | log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
231 | else | |
232 | log_error("Failed to create unit file %s: %m", unit); | |
d0aa9ce5 | 233 | return -errno; |
6b1dc2bd LP |
234 | } |
235 | ||
5e398e54 | 236 | fprintf(f, |
c3834f9b LP |
237 | "# Automatically generated by systemd-fstab-generator\n\n" |
238 | "[Unit]\n" | |
239 | "SourcePath=%s\n" | |
240 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n", | |
241 | source); | |
6b1dc2bd | 242 | |
700e07ff | 243 | if (post && !noauto && !nofail && !automount) |
5ecdcf41 | 244 | fprintf(f, "Before=%s\n", post); |
6b1dc2bd | 245 | |
e48fdd84 | 246 | if (passno != 0) { |
6db615c1 | 247 | r = generator_write_fsck_deps(f, arg_dest, what, where, fstype); |
e48fdd84 LP |
248 | if (r < 0) |
249 | return r; | |
250 | } | |
64e70e4b | 251 | |
6b1dc2bd LP |
252 | fprintf(f, |
253 | "\n" | |
254 | "[Mount]\n" | |
255 | "What=%s\n" | |
6db615c1 | 256 | "Where=%s\n", |
6b1dc2bd | 257 | what, |
6db615c1 LP |
258 | where); |
259 | ||
260 | if (!isempty(fstype) && !streq(fstype, "auto")) | |
261 | fprintf(f, "Type=%s\n", fstype); | |
6b1dc2bd | 262 | |
29686440 ZJS |
263 | r = generator_write_timeouts(arg_dest, what, where, opts, &filtered); |
264 | if (r < 0) | |
265 | return r; | |
266 | ||
267 | if (!isempty(filtered) && !streq(filtered, "defaults")) | |
268 | fprintf(f, "Options=%s\n", filtered); | |
5e398e54 | 269 | |
6b1dc2bd LP |
270 | fflush(f); |
271 | if (ferror(f)) { | |
40b8acd0 | 272 | log_error("Failed to write unit file %s: %m", unit); |
d0aa9ce5 | 273 | return -errno; |
6b1dc2bd LP |
274 | } |
275 | ||
5ecdcf41 LP |
276 | if (!noauto && post) { |
277 | lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL); | |
278 | if (!lnk) | |
279 | return log_oom(); | |
280 | ||
281 | mkdir_parents_label(lnk, 0755); | |
282 | if (symlink(unit, lnk) < 0) { | |
283 | log_error("Failed to create symlink %s: %m", lnk); | |
284 | return -errno; | |
6b1dc2bd | 285 | } |
6b1dc2bd LP |
286 | } |
287 | ||
e48fdd84 | 288 | if (automount) { |
6b1dc2bd | 289 | automount_name = unit_name_from_path(where, ".automount"); |
01264ad1 | 290 | if (!automount_name) |
d0aa9ce5 | 291 | return log_oom(); |
6b1dc2bd | 292 | |
b7def684 | 293 | automount_unit = strjoin(arg_dest, "/", automount_name, NULL); |
d0aa9ce5 ZJS |
294 | if (!automount_unit) |
295 | return log_oom(); | |
6b1dc2bd LP |
296 | |
297 | fclose(f); | |
298 | f = fopen(automount_unit, "wxe"); | |
299 | if (!f) { | |
40b8acd0 | 300 | log_error("Failed to create unit file %s: %m", automount_unit); |
d0aa9ce5 | 301 | return -errno; |
6b1dc2bd LP |
302 | } |
303 | ||
304 | fprintf(f, | |
305 | "# Automatically generated by systemd-fstab-generator\n\n" | |
306 | "[Unit]\n" | |
c3834f9b LP |
307 | "SourcePath=%s\n" |
308 | "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n", | |
700e07ff HH |
309 | source); |
310 | ||
311 | if (post) | |
312 | fprintf(f, | |
e48fdd84 | 313 | "Before=%s\n", |
700e07ff HH |
314 | post); |
315 | ||
316 | fprintf(f, | |
6b1dc2bd LP |
317 | "[Automount]\n" |
318 | "Where=%s\n", | |
6b1dc2bd LP |
319 | where); |
320 | ||
321 | fflush(f); | |
322 | if (ferror(f)) { | |
40b8acd0 | 323 | log_error("Failed to write unit file %s: %m", automount_unit); |
d0aa9ce5 | 324 | return -errno; |
6b1dc2bd LP |
325 | } |
326 | ||
327 | free(lnk); | |
b7def684 | 328 | lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL); |
d0aa9ce5 ZJS |
329 | if (!lnk) |
330 | return log_oom(); | |
6b1dc2bd | 331 | |
d2e54fae | 332 | mkdir_parents_label(lnk, 0755); |
6b1dc2bd | 333 | if (symlink(automount_unit, lnk) < 0) { |
40b8acd0 | 334 | log_error("Failed to create symlink %s: %m", lnk); |
d0aa9ce5 | 335 | return -errno; |
6b1dc2bd LP |
336 | } |
337 | } | |
338 | ||
d0aa9ce5 | 339 | return 0; |
6b1dc2bd LP |
340 | } |
341 | ||
e48fdd84 | 342 | static int parse_fstab(bool initrd) { |
6db615c1 | 343 | _cleanup_endmntent_ FILE *f = NULL; |
e48fdd84 | 344 | const char *fstab_path; |
6b1dc2bd | 345 | struct mntent *me; |
e48fdd84 | 346 | int r = 0; |
6b1dc2bd | 347 | |
e48fdd84 LP |
348 | fstab_path = initrd ? "/sysroot/etc/fstab" : "/etc/fstab"; |
349 | f = setmntent(fstab_path, "re"); | |
6b1dc2bd LP |
350 | if (!f) { |
351 | if (errno == ENOENT) | |
352 | return 0; | |
353 | ||
e48fdd84 | 354 | log_error("Failed to open %s: %m", fstab_path); |
6b1dc2bd LP |
355 | return -errno; |
356 | } | |
357 | ||
358 | while ((me = getmntent(f))) { | |
7fd1b19b | 359 | _cleanup_free_ char *where = NULL, *what = NULL; |
6b1dc2bd LP |
360 | int k; |
361 | ||
3d22d1ab TG |
362 | if (initrd && !mount_in_initrd(me)) |
363 | continue; | |
364 | ||
6b1dc2bd | 365 | what = fstab_node_to_udev_node(me->mnt_fsname); |
e48fdd84 LP |
366 | if (!what) |
367 | return log_oom(); | |
368 | ||
689aede8 LP |
369 | if (detect_container(NULL) > 0 && is_device_path(what)) { |
370 | log_info("Running in a container, ignoring fstab device entry for %s.", what); | |
371 | continue; | |
372 | } | |
373 | ||
e48fdd84 LP |
374 | where = initrd ? strappend("/sysroot/", me->mnt_dir) : strdup(me->mnt_dir); |
375 | if (!where) | |
5862d652 | 376 | return log_oom(); |
6b1dc2bd | 377 | |
ec6ceb18 | 378 | if (is_path(where)) |
6b1dc2bd LP |
379 | path_kill_slashes(where); |
380 | ||
381 | log_debug("Found entry what=%s where=%s type=%s", what, where, me->mnt_type); | |
382 | ||
383 | if (streq(me->mnt_type, "swap")) | |
384 | k = add_swap(what, me); | |
5e398e54 | 385 | else { |
5073f89f | 386 | bool noauto, nofail, automount; |
80c3b720 | 387 | const char *post; |
5e398e54 TG |
388 | |
389 | noauto = !!hasmntopt(me, "noauto"); | |
390 | nofail = !!hasmntopt(me, "nofail"); | |
391 | automount = | |
392 | hasmntopt(me, "comment=systemd.automount") || | |
393 | hasmntopt(me, "x-systemd.automount"); | |
700e07ff | 394 | |
e48fdd84 | 395 | if (initrd) |
700e07ff | 396 | post = SPECIAL_INITRD_FS_TARGET; |
e48fdd84 | 397 | else if (mount_in_initrd(me)) |
9e5f0f92 | 398 | post = SPECIAL_INITRD_ROOT_FS_TARGET; |
e48fdd84 | 399 | else if (mount_is_network(me)) |
0c17fbce | 400 | post = SPECIAL_REMOTE_FS_TARGET; |
e48fdd84 | 401 | else |
0c17fbce | 402 | post = SPECIAL_LOCAL_FS_TARGET; |
5e398e54 | 403 | |
6db615c1 LP |
404 | k = add_mount(what, |
405 | where, | |
406 | me->mnt_type, | |
407 | me->mnt_opts, | |
408 | me->mnt_passno, | |
409 | noauto, | |
410 | nofail, | |
411 | automount, | |
412 | post, | |
413 | fstab_path); | |
5e398e54 | 414 | } |
6b1dc2bd | 415 | |
6b1dc2bd LP |
416 | if (k < 0) |
417 | r = k; | |
418 | } | |
419 | ||
6b1dc2bd LP |
420 | return r; |
421 | } | |
422 | ||
6db615c1 | 423 | static int add_root_mount(void) { |
75a59316 ZJS |
424 | _cleanup_free_ char *what = NULL; |
425 | const char *opts; | |
5e398e54 | 426 | |
6db615c1 | 427 | if (isempty(arg_root_what)) { |
4e5ed9b6 | 428 | log_debug("Could not find a root= entry on the kernel commandline."); |
135b5212 HH |
429 | return 0; |
430 | } | |
5e398e54 | 431 | |
6db615c1 LP |
432 | what = fstab_node_to_udev_node(arg_root_what); |
433 | if (!path_is_absolute(what)) { | |
434 | log_debug("Skipping entry what=%s where=/sysroot type=%s", what, strna(arg_root_fstype)); | |
135b5212 HH |
435 | return 0; |
436 | } | |
5e398e54 | 437 | |
6db615c1 | 438 | if (!arg_root_options) |
75a59316 ZJS |
439 | opts = arg_root_rw > 0 ? "rw" : "ro"; |
440 | else if (arg_root_rw >= 0 || | |
441 | (!mount_test_option(arg_root_options, "ro") && | |
442 | !mount_test_option(arg_root_options, "rw"))) | |
8085f163 | 443 | opts = strappenda(arg_root_options, ",", arg_root_rw > 0 ? "rw" : "ro"); |
75a59316 ZJS |
444 | else |
445 | opts = arg_root_options; | |
5e398e54 | 446 | |
6db615c1 LP |
447 | log_debug("Found entry what=%s where=/sysroot type=%s", what, strna(arg_root_fstype)); |
448 | return add_mount(what, | |
449 | "/sysroot", | |
450 | arg_root_fstype, | |
75a59316 | 451 | opts, |
6db615c1 | 452 | 1, |
5ecdcf41 LP |
453 | false, |
454 | false, | |
6db615c1 LP |
455 | false, |
456 | SPECIAL_INITRD_ROOT_FS_TARGET, | |
457 | "/proc/cmdline"); | |
5e398e54 TG |
458 | } |
459 | ||
9f103625 TH |
460 | static int add_usr_mount(void) { |
461 | _cleanup_free_ char *what = NULL; | |
462 | const char *opts; | |
463 | ||
464 | if (!arg_usr_what && !arg_usr_fstype && !arg_usr_options) | |
465 | return 0; | |
466 | ||
467 | if (arg_root_what && !arg_usr_what) { | |
468 | arg_usr_what = strdup(arg_root_what); | |
469 | ||
470 | if (!arg_usr_what) | |
471 | return log_oom(); | |
472 | } | |
473 | ||
474 | if (arg_root_fstype && !arg_usr_fstype) { | |
475 | arg_usr_fstype = strdup(arg_root_fstype); | |
476 | ||
477 | if (!arg_usr_fstype) | |
478 | return log_oom(); | |
479 | } | |
480 | ||
481 | if (arg_root_options && !arg_usr_options) { | |
482 | arg_usr_options = strdup(arg_root_options); | |
483 | ||
484 | if (!arg_usr_options) | |
485 | return log_oom(); | |
486 | } | |
487 | ||
488 | if (!arg_usr_what || !arg_usr_options) | |
489 | return 0; | |
490 | ||
491 | what = fstab_node_to_udev_node(arg_usr_what); | |
492 | if (!path_is_absolute(what)) { | |
493 | log_debug("Skipping entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype)); | |
494 | return -1; | |
495 | } | |
496 | ||
497 | opts = arg_usr_options; | |
498 | ||
499 | log_debug("Found entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype)); | |
500 | return add_mount(what, | |
501 | "/sysroot/usr", | |
502 | arg_usr_fstype, | |
503 | opts, | |
504 | 1, | |
505 | false, | |
506 | false, | |
507 | false, | |
508 | SPECIAL_INITRD_ROOT_FS_TARGET, | |
509 | "/proc/cmdline"); | |
510 | } | |
511 | ||
059cb385 | 512 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
74df0fca | 513 | int r; |
94734142 | 514 | |
9f103625 TH |
515 | /* root=, usr=, usrfstype= and roofstype= may occur more than once, the last |
516 | * instance should take precedence. In the case of multiple rootflags= | |
517 | * or usrflags= the arguments should be concatenated */ | |
6db615c1 | 518 | |
059cb385 | 519 | if (STR_IN_SET(key, "fstab", "rd.fstab") && value) { |
e48fdd84 | 520 | |
059cb385 | 521 | r = parse_boolean(value); |
141a79f4 | 522 | if (r < 0) |
059cb385 | 523 | log_warning("Failed to parse fstab switch %s. Ignoring.", value); |
141a79f4 | 524 | else |
e48fdd84 | 525 | arg_fstab_enabled = r; |
94734142 | 526 | |
6db615c1 LP |
527 | } else if (streq(key, "root") && value) { |
528 | ||
f88dc3ed | 529 | if (free_and_strdup(&arg_root_what, value) < 0) |
6db615c1 LP |
530 | return log_oom(); |
531 | ||
532 | } else if (streq(key, "rootfstype") && value) { | |
533 | ||
f88dc3ed | 534 | if (free_and_strdup(&arg_root_fstype, value) < 0) |
6db615c1 LP |
535 | return log_oom(); |
536 | ||
537 | } else if (streq(key, "rootflags") && value) { | |
538 | char *o; | |
539 | ||
540 | o = arg_root_options ? | |
541 | strjoin(arg_root_options, ",", value, NULL) : | |
542 | strdup(value); | |
543 | if (!o) | |
544 | return log_oom(); | |
545 | ||
546 | free(arg_root_options); | |
547 | arg_root_options = o; | |
548 | ||
9f103625 TH |
549 | } else if (streq(key, "mount.usr") && value) { |
550 | ||
551 | if (free_and_strdup(&arg_usr_what, value) < 0) | |
552 | return log_oom(); | |
553 | ||
554 | } else if (streq(key, "mount.usrfstype") && value) { | |
555 | ||
556 | if (free_and_strdup(&arg_usr_fstype, value) < 0) | |
557 | return log_oom(); | |
558 | ||
559 | } else if (streq(key, "mount.usrflags") && value) { | |
560 | char *o; | |
561 | ||
562 | o = arg_usr_options ? | |
563 | strjoin(arg_usr_options, ",", value, NULL) : | |
564 | strdup(value); | |
565 | if (!o) | |
566 | return log_oom(); | |
567 | ||
568 | free(arg_usr_options); | |
569 | arg_usr_options = o; | |
570 | ||
6db615c1 LP |
571 | } else if (streq(key, "rw") && !value) |
572 | arg_root_rw = true; | |
573 | else if (streq(key, "ro") && !value) | |
574 | arg_root_rw = false; | |
94734142 | 575 | |
d0aa9ce5 | 576 | return 0; |
94734142 LP |
577 | } |
578 | ||
6b1dc2bd | 579 | int main(int argc, char *argv[]) { |
e48fdd84 | 580 | int r = 0; |
6b1dc2bd | 581 | |
07719a21 LP |
582 | if (argc > 1 && argc != 4) { |
583 | log_error("This program takes three or no arguments."); | |
6b1dc2bd LP |
584 | return EXIT_FAILURE; |
585 | } | |
586 | ||
587 | if (argc > 1) | |
588 | arg_dest = argv[1]; | |
589 | ||
a6903061 | 590 | log_set_target(LOG_TARGET_SAFE); |
6b1dc2bd LP |
591 | log_parse_environment(); |
592 | log_open(); | |
593 | ||
6b1dc2bd LP |
594 | umask(0022); |
595 | ||
059cb385 | 596 | if (parse_proc_cmdline(parse_proc_cmdline_item) < 0) |
94734142 LP |
597 | return EXIT_FAILURE; |
598 | ||
9f103625 TH |
599 | /* Always honour root= and usr= in the kernel command line if we are in an initrd */ |
600 | if (in_initrd()) { | |
6db615c1 | 601 | r = add_root_mount(); |
9f103625 TH |
602 | if (r == 0) |
603 | r = add_usr_mount(); | |
604 | } | |
5e398e54 | 605 | |
e48fdd84 LP |
606 | /* Honour /etc/fstab only when that's enabled */ |
607 | if (arg_fstab_enabled) { | |
608 | int k; | |
ac4785b0 | 609 | |
75a59316 ZJS |
610 | log_debug("Parsing /etc/fstab"); |
611 | ||
e48fdd84 LP |
612 | /* Parse the local /etc/fstab, possibly from the initrd */ |
613 | k = parse_fstab(false); | |
614 | if (k < 0) | |
615 | r = k; | |
ac4785b0 | 616 | |
e48fdd84 LP |
617 | /* If running in the initrd also parse the /etc/fstab from the host */ |
618 | if (in_initrd()) { | |
75a59316 ZJS |
619 | log_debug("Parsing /sysroot/etc/fstab"); |
620 | ||
e48fdd84 LP |
621 | k = parse_fstab(true); |
622 | if (k < 0) | |
623 | r = k; | |
624 | } | |
625 | } | |
6b1dc2bd | 626 | |
126cc760 ZJS |
627 | free(arg_root_what); |
628 | ||
e48fdd84 | 629 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
6b1dc2bd | 630 | } |