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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" | |
94734142 | 35 | #include "virt.h" |
a5c32cff | 36 | #include "fileio.h" |
6b1dc2bd LP |
37 | |
38 | static const char *arg_dest = "/tmp"; | |
94734142 | 39 | static bool arg_enabled = true; |
6b1dc2bd LP |
40 | |
41 | static int device_name(const char *path, char **unit) { | |
42 | char *p; | |
43 | ||
44 | assert(path); | |
45 | ||
46 | if (!is_device_path(path)) | |
47 | return 0; | |
48 | ||
49 | p = unit_name_from_path(path, ".device"); | |
50 | if (!p) | |
0d0f0c50 | 51 | return log_oom(); |
6b1dc2bd LP |
52 | |
53 | *unit = p; | |
54 | return 1; | |
55 | } | |
56 | ||
57 | static int mount_find_pri(struct mntent *me, int *ret) { | |
58 | char *end, *pri; | |
59 | unsigned long r; | |
60 | ||
61 | assert(me); | |
62 | assert(ret); | |
63 | ||
64 | pri = hasmntopt(me, "pri"); | |
65 | if (!pri) | |
66 | return 0; | |
67 | ||
68 | pri += 4; | |
69 | ||
70 | errno = 0; | |
71 | r = strtoul(pri, &end, 10); | |
72 | if (errno != 0) | |
73 | return -errno; | |
74 | ||
75 | if (end == pri || (*end != ',' && *end != 0)) | |
76 | return -EINVAL; | |
77 | ||
78 | *ret = (int) r; | |
79 | return 1; | |
80 | } | |
81 | ||
82 | static int add_swap(const char *what, struct mntent *me) { | |
d0aa9ce5 ZJS |
83 | char _cleanup_free_ *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL; |
84 | FILE _cleanup_fclose_ *f = NULL; | |
6b1dc2bd LP |
85 | bool noauto, nofail; |
86 | int r, pri = -1; | |
87 | ||
88 | assert(what); | |
89 | assert(me); | |
90 | ||
91 | r = mount_find_pri(me, &pri); | |
92 | if (r < 0) { | |
93 | log_error("Failed to parse priority"); | |
94 | return pri; | |
95 | } | |
96 | ||
97 | noauto = !!hasmntopt(me, "noauto"); | |
98 | nofail = !!hasmntopt(me, "nofail"); | |
99 | ||
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 | ||
117 | fputs("# Automatically generated by systemd-fstab-generator\n\n" | |
118 | "[Unit]\n" | |
1b64d026 | 119 | "SourcePath=/etc/fstab\n" |
6b1dc2bd LP |
120 | "DefaultDependencies=no\n" |
121 | "Conflicts=" SPECIAL_UMOUNT_TARGET "\n" | |
122 | "Before=" SPECIAL_UMOUNT_TARGET "\n", f); | |
123 | ||
124 | if (!noauto && !nofail) | |
125 | fputs("Before=" SPECIAL_SWAP_TARGET "\n", f); | |
126 | ||
127 | fprintf(f, | |
128 | "\n" | |
129 | "[Swap]\n" | |
130 | "What=%s\n", | |
131 | what); | |
132 | ||
133 | if (pri >= 0) | |
134 | fprintf(f, | |
135 | "Priority=%i\n", | |
136 | pri); | |
137 | ||
138 | fflush(f); | |
139 | if (ferror(f)) { | |
40b8acd0 | 140 | log_error("Failed to write unit file %s: %m", unit); |
d0aa9ce5 | 141 | return -errno; |
6b1dc2bd LP |
142 | } |
143 | ||
144 | if (!noauto) { | |
b7def684 | 145 | lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL); |
d0aa9ce5 ZJS |
146 | if (!lnk) |
147 | return log_oom(); | |
6b1dc2bd | 148 | |
d2e54fae | 149 | mkdir_parents_label(lnk, 0755); |
6b1dc2bd | 150 | if (symlink(unit, lnk) < 0) { |
40b8acd0 | 151 | log_error("Failed to create symlink %s: %m", lnk); |
d0aa9ce5 | 152 | return -errno; |
6b1dc2bd LP |
153 | } |
154 | ||
155 | r = device_name(what, &device); | |
0d0f0c50 | 156 | if (r < 0) |
d0aa9ce5 | 157 | return r; |
6b1dc2bd LP |
158 | |
159 | if (r > 0) { | |
160 | free(lnk); | |
b7def684 | 161 | lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL); |
d0aa9ce5 ZJS |
162 | if (!lnk) |
163 | return log_oom(); | |
6b1dc2bd | 164 | |
d2e54fae | 165 | mkdir_parents_label(lnk, 0755); |
6b1dc2bd | 166 | if (symlink(unit, lnk) < 0) { |
40b8acd0 | 167 | log_error("Failed to create symlink %s: %m", lnk); |
d0aa9ce5 | 168 | return -errno; |
6b1dc2bd LP |
169 | } |
170 | } | |
171 | } | |
172 | ||
d0aa9ce5 | 173 | return 0; |
6b1dc2bd LP |
174 | } |
175 | ||
f9ea108e LP |
176 | static bool mount_is_bind(struct mntent *me) { |
177 | assert(me); | |
178 | ||
179 | return | |
180 | hasmntopt(me, "bind") || | |
3f8ee791 FC |
181 | streq(me->mnt_type, "bind") || |
182 | hasmntopt(me, "rbind") || | |
183 | streq(me->mnt_type, "rbind"); | |
f9ea108e LP |
184 | } |
185 | ||
6b1dc2bd LP |
186 | static bool mount_is_network(struct mntent *me) { |
187 | assert(me); | |
188 | ||
189 | return | |
190 | hasmntopt(me, "_netdev") || | |
191 | fstype_is_network(me->mnt_type); | |
192 | } | |
193 | ||
3d22d1ab TG |
194 | static bool mount_in_initrd(struct mntent *me) { |
195 | assert(me); | |
196 | ||
197 | return | |
198 | hasmntopt(me, "x-initrd.mount") || | |
199 | streq(me->mnt_dir, "/usr"); | |
200 | } | |
201 | ||
e8d2f6cd LP |
202 | static int add_mount( |
203 | const char *what, | |
204 | const char *where, | |
205 | const char *type, | |
206 | const char *opts, | |
207 | int passno, | |
208 | bool noauto, | |
209 | bool nofail, | |
210 | bool automount, | |
211 | bool isbind, | |
212 | const char *pre, | |
0c17fbce LP |
213 | const char *pre2, |
214 | const char *online, | |
e8d2f6cd | 215 | const char *post, |
e8d2f6cd | 216 | const char *source) { |
d0aa9ce5 ZJS |
217 | char _cleanup_free_ |
218 | *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL, | |
219 | *automount_name = NULL, *automount_unit = NULL; | |
220 | FILE _cleanup_fclose_ *f = NULL; | |
6b1dc2bd | 221 | int r; |
6b1dc2bd LP |
222 | |
223 | assert(what); | |
224 | assert(where); | |
5e398e54 TG |
225 | assert(type); |
226 | assert(opts); | |
227 | assert(source); | |
6b1dc2bd | 228 | |
5e398e54 | 229 | if (streq(type, "autofs")) |
6b1dc2bd LP |
230 | return 0; |
231 | ||
232 | if (!is_path(where)) { | |
233 | log_warning("Mount point %s is not a valid path, ignoring.", where); | |
234 | return 0; | |
235 | } | |
236 | ||
237 | if (mount_point_is_api(where) || | |
238 | mount_point_ignore(where)) | |
239 | return 0; | |
240 | ||
6b1dc2bd | 241 | name = unit_name_from_path(where, ".mount"); |
d0aa9ce5 ZJS |
242 | if (!name) |
243 | return log_oom(); | |
6b1dc2bd | 244 | |
b7def684 | 245 | unit = strjoin(arg_dest, "/", name, NULL); |
d0aa9ce5 ZJS |
246 | if (!unit) |
247 | return log_oom(); | |
6b1dc2bd LP |
248 | |
249 | f = fopen(unit, "wxe"); | |
250 | if (!f) { | |
67ab5f76 TG |
251 | if (errno == EEXIST) |
252 | log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit); | |
253 | else | |
254 | log_error("Failed to create unit file %s: %m", unit); | |
d0aa9ce5 | 255 | return -errno; |
6b1dc2bd LP |
256 | } |
257 | ||
5e398e54 TG |
258 | fprintf(f, |
259 | "# Automatically generated by systemd-fstab-generator\n\n" | |
6b1dc2bd | 260 | "[Unit]\n" |
5e398e54 TG |
261 | "SourcePath=%s\n" |
262 | "DefaultDependencies=no\n", | |
263 | source); | |
6b1dc2bd | 264 | |
700e07ff HH |
265 | if (!path_equal(where, "/")) { |
266 | if (pre) | |
267 | fprintf(f, | |
e8d2f6cd | 268 | "After=%s\n", |
700e07ff | 269 | pre); |
e8d2f6cd | 270 | |
0c17fbce | 271 | if (pre2) |
e8d2f6cd | 272 | fprintf(f, |
0c17fbce LP |
273 | "After=%s\n", |
274 | pre2); | |
275 | ||
276 | if (online) | |
277 | fprintf(f, | |
278 | "After=%s\n" | |
e8d2f6cd | 279 | "Wants=%s\n", |
0c17fbce LP |
280 | online, |
281 | online); | |
e8d2f6cd | 282 | |
6b1dc2bd | 283 | fprintf(f, |
6b1dc2bd | 284 | "Conflicts=" SPECIAL_UMOUNT_TARGET "\n" |
700e07ff HH |
285 | "Before=" SPECIAL_UMOUNT_TARGET "\n"); |
286 | } | |
6b1dc2bd | 287 | |
700e07ff | 288 | if (post && !noauto && !nofail && !automount) |
6b1dc2bd LP |
289 | fprintf(f, |
290 | "Before=%s\n", | |
291 | post); | |
292 | ||
293 | fprintf(f, | |
294 | "\n" | |
295 | "[Mount]\n" | |
296 | "What=%s\n" | |
297 | "Where=%s\n" | |
298 | "Type=%s\n" | |
299 | "FsckPassNo=%i\n", | |
300 | what, | |
301 | where, | |
5e398e54 TG |
302 | type, |
303 | passno); | |
6b1dc2bd | 304 | |
5e398e54 TG |
305 | if (!isempty(opts) && |
306 | !streq(opts, "defaults")) | |
6b1dc2bd LP |
307 | fprintf(f, |
308 | "Options=%s\n", | |
5e398e54 TG |
309 | opts); |
310 | ||
6b1dc2bd LP |
311 | fflush(f); |
312 | if (ferror(f)) { | |
40b8acd0 | 313 | log_error("Failed to write unit file %s: %m", unit); |
d0aa9ce5 | 314 | return -errno; |
6b1dc2bd LP |
315 | } |
316 | ||
317 | if (!noauto) { | |
700e07ff HH |
318 | if (post) { |
319 | lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL); | |
320 | if (!lnk) | |
321 | return log_oom(); | |
6b1dc2bd | 322 | |
700e07ff HH |
323 | mkdir_parents_label(lnk, 0755); |
324 | if (symlink(unit, lnk) < 0) { | |
325 | log_error("Failed to create symlink %s: %m", lnk); | |
326 | return -errno; | |
327 | } | |
6b1dc2bd LP |
328 | } |
329 | ||
330 | if (!isbind && | |
331 | !path_equal(where, "/")) { | |
332 | ||
333 | r = device_name(what, &device); | |
0d0f0c50 | 334 | if (r < 0) |
d0aa9ce5 | 335 | return r; |
6b1dc2bd LP |
336 | |
337 | if (r > 0) { | |
338 | free(lnk); | |
b7def684 | 339 | lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL); |
d0aa9ce5 ZJS |
340 | if (!lnk) |
341 | return log_oom(); | |
6b1dc2bd | 342 | |
d2e54fae | 343 | mkdir_parents_label(lnk, 0755); |
6b1dc2bd | 344 | if (symlink(unit, lnk) < 0) { |
40b8acd0 | 345 | log_error("Failed to create symlink %s: %m", lnk); |
d0aa9ce5 | 346 | return -errno; |
6b1dc2bd LP |
347 | } |
348 | } | |
349 | } | |
350 | } | |
351 | ||
352 | if (automount && !path_equal(where, "/")) { | |
353 | automount_name = unit_name_from_path(where, ".automount"); | |
d0aa9ce5 ZJS |
354 | if (!name) |
355 | return log_oom(); | |
6b1dc2bd | 356 | |
b7def684 | 357 | automount_unit = strjoin(arg_dest, "/", automount_name, NULL); |
d0aa9ce5 ZJS |
358 | if (!automount_unit) |
359 | return log_oom(); | |
6b1dc2bd LP |
360 | |
361 | fclose(f); | |
362 | f = fopen(automount_unit, "wxe"); | |
363 | if (!f) { | |
40b8acd0 | 364 | log_error("Failed to create unit file %s: %m", automount_unit); |
d0aa9ce5 | 365 | return -errno; |
6b1dc2bd LP |
366 | } |
367 | ||
368 | fprintf(f, | |
369 | "# Automatically generated by systemd-fstab-generator\n\n" | |
370 | "[Unit]\n" | |
3d22d1ab | 371 | "SourcePath=%s\n" |
6b1dc2bd LP |
372 | "DefaultDependencies=no\n" |
373 | "Conflicts=" SPECIAL_UMOUNT_TARGET "\n" | |
700e07ff HH |
374 | "Before=" SPECIAL_UMOUNT_TARGET "\n", |
375 | source); | |
376 | ||
377 | if (post) | |
378 | fprintf(f, | |
379 | "Before= %s\n", | |
380 | post); | |
381 | ||
382 | fprintf(f, | |
6b1dc2bd LP |
383 | "[Automount]\n" |
384 | "Where=%s\n", | |
6b1dc2bd LP |
385 | where); |
386 | ||
387 | fflush(f); | |
388 | if (ferror(f)) { | |
40b8acd0 | 389 | log_error("Failed to write unit file %s: %m", automount_unit); |
d0aa9ce5 | 390 | return -errno; |
6b1dc2bd LP |
391 | } |
392 | ||
393 | free(lnk); | |
b7def684 | 394 | lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL); |
d0aa9ce5 ZJS |
395 | if (!lnk) |
396 | return log_oom(); | |
6b1dc2bd | 397 | |
d2e54fae | 398 | mkdir_parents_label(lnk, 0755); |
6b1dc2bd | 399 | if (symlink(automount_unit, lnk) < 0) { |
40b8acd0 | 400 | log_error("Failed to create symlink %s: %m", lnk); |
d0aa9ce5 | 401 | return -errno; |
6b1dc2bd LP |
402 | } |
403 | } | |
404 | ||
d0aa9ce5 | 405 | return 0; |
6b1dc2bd LP |
406 | } |
407 | ||
3d22d1ab | 408 | static int parse_fstab(const char *prefix, bool initrd) { |
3d22d1ab | 409 | _cleanup_free_ char *fstab_path = NULL; |
df3e57f5 | 410 | FILE *f; |
6b1dc2bd LP |
411 | int r = 0; |
412 | struct mntent *me; | |
413 | ||
df3e57f5 LP |
414 | fstab_path = strjoin(strempty(prefix), "/etc/fstab", NULL); |
415 | if (!fstab_path) | |
416 | return log_oom(); | |
417 | ||
3d22d1ab | 418 | f = setmntent(fstab_path, "r"); |
6b1dc2bd LP |
419 | if (!f) { |
420 | if (errno == ENOENT) | |
421 | return 0; | |
422 | ||
1b036593 | 423 | log_error("Failed to open %s/etc/fstab: %m", strempty(prefix)); |
6b1dc2bd LP |
424 | return -errno; |
425 | } | |
426 | ||
427 | while ((me = getmntent(f))) { | |
d0aa9ce5 | 428 | char _cleanup_free_ *where = NULL, *what = NULL; |
6b1dc2bd LP |
429 | int k; |
430 | ||
3d22d1ab TG |
431 | if (initrd && !mount_in_initrd(me)) |
432 | continue; | |
433 | ||
6b1dc2bd | 434 | what = fstab_node_to_udev_node(me->mnt_fsname); |
1b036593 | 435 | where = strjoin(strempty(prefix), me->mnt_dir, NULL); |
d0aa9ce5 | 436 | if (!what || !where) { |
0d0f0c50 | 437 | r = log_oom(); |
6b1dc2bd LP |
438 | goto finish; |
439 | } | |
440 | ||
ec6ceb18 | 441 | if (is_path(where)) |
6b1dc2bd LP |
442 | path_kill_slashes(where); |
443 | ||
444 | log_debug("Found entry what=%s where=%s type=%s", what, where, me->mnt_type); | |
445 | ||
446 | if (streq(me->mnt_type, "swap")) | |
447 | k = add_swap(what, me); | |
5e398e54 | 448 | else { |
700e07ff | 449 | bool noauto, nofail, automount, isbind; |
0c17fbce | 450 | const char *pre, *pre2, *post, *online; |
5e398e54 TG |
451 | |
452 | noauto = !!hasmntopt(me, "noauto"); | |
453 | nofail = !!hasmntopt(me, "nofail"); | |
454 | automount = | |
455 | hasmntopt(me, "comment=systemd.automount") || | |
456 | hasmntopt(me, "x-systemd.automount"); | |
457 | isbind = mount_is_bind(me); | |
700e07ff HH |
458 | |
459 | if (initrd) { | |
0c17fbce | 460 | pre = pre2 = online = NULL; |
700e07ff | 461 | post = SPECIAL_INITRD_FS_TARGET; |
a87586a1 | 462 | } else if (mount_in_initrd(me)) { |
0c17fbce | 463 | pre = pre2 = online = NULL; |
9e5f0f92 | 464 | post = SPECIAL_INITRD_ROOT_FS_TARGET; |
700e07ff | 465 | } else if (mount_is_network(me)) { |
700e07ff | 466 | pre = SPECIAL_REMOTE_FS_PRE_TARGET; |
0c17fbce LP |
467 | pre2 = SPECIAL_NETWORK_TARGET; |
468 | online = SPECIAL_NETWORK_ONLINE_TARGET; | |
469 | post = SPECIAL_REMOTE_FS_TARGET; | |
700e07ff | 470 | } else { |
700e07ff | 471 | pre = SPECIAL_LOCAL_FS_PRE_TARGET; |
0c17fbce LP |
472 | pre2 = online = NULL; |
473 | post = SPECIAL_LOCAL_FS_TARGET; | |
700e07ff | 474 | } |
5e398e54 TG |
475 | |
476 | k = add_mount(what, where, me->mnt_type, me->mnt_opts, | |
e8d2f6cd | 477 | me->mnt_passno, noauto, nofail, automount, |
0c17fbce | 478 | isbind, pre, pre2, online, post, fstab_path); |
5e398e54 | 479 | } |
6b1dc2bd | 480 | |
6b1dc2bd LP |
481 | if (k < 0) |
482 | r = k; | |
483 | } | |
484 | ||
485 | finish: | |
486 | endmntent(f); | |
487 | return r; | |
488 | } | |
489 | ||
5e398e54 | 490 | static int parse_new_root_from_proc_cmdline(void) { |
ac4785b0 | 491 | _cleanup_free_ char *what = NULL, *type = NULL, *opts = NULL, *line = NULL; |
80c39ad2 | 492 | char *w, *state; |
5e398e54 TG |
493 | int r; |
494 | size_t l; | |
5e398e54 TG |
495 | |
496 | r = read_one_line_file("/proc/cmdline", &line); | |
497 | if (r < 0) { | |
498 | log_error("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); | |
499 | return 0; | |
500 | } | |
501 | ||
945d1442 | 502 | opts = strdup("ro"); |
5e398e54 | 503 | type = strdup("auto"); |
945d1442 | 504 | if (!opts || !type) |
5e398e54 TG |
505 | return log_oom(); |
506 | ||
b929bf04 TA |
507 | /* root= and roofstype= may occur more than once, the last instance should take precedence. |
508 | * In the case of multiple rootflags= the arguments should be concatenated */ | |
5e398e54 | 509 | FOREACH_WORD_QUOTED(w, l, line, state) { |
80c39ad2 | 510 | _cleanup_free_ char *word; |
5e398e54 TG |
511 | |
512 | word = strndup(w, l); | |
513 | if (!word) | |
514 | return log_oom(); | |
515 | ||
516 | else if (startswith(word, "root=")) { | |
517 | free(what); | |
518 | what = fstab_node_to_udev_node(word+5); | |
519 | if (!what) | |
520 | return log_oom(); | |
521 | ||
522 | } else if (startswith(word, "rootfstype=")) { | |
523 | free(type); | |
524 | type = strdup(word + 11); | |
525 | if (!type) | |
526 | return log_oom(); | |
527 | ||
528 | } else if (startswith(word, "rootflags=")) { | |
80c39ad2 LP |
529 | char *o; |
530 | ||
531 | o = strjoin(opts, ",", word + 10, NULL); | |
532 | if (!o) | |
5e398e54 TG |
533 | return log_oom(); |
534 | ||
80c39ad2 LP |
535 | free(opts); |
536 | opts = o; | |
537 | ||
5e398e54 | 538 | } else if (streq(word, "ro") || streq(word, "rw")) { |
80c39ad2 LP |
539 | char *o; |
540 | ||
541 | o = strjoin(opts, ",", word, NULL); | |
542 | if (!o) | |
5e398e54 TG |
543 | return log_oom(); |
544 | ||
80c39ad2 LP |
545 | free(opts); |
546 | opts = o; | |
533740e1 | 547 | } |
5e398e54 TG |
548 | } |
549 | ||
135b5212 | 550 | if (!what) { |
4e5ed9b6 | 551 | log_debug("Could not find a root= entry on the kernel commandline."); |
135b5212 HH |
552 | return 0; |
553 | } | |
5e398e54 | 554 | |
135b5212 HH |
555 | if (what[0] != '/') { |
556 | log_debug("Skipping entry what=%s where=/sysroot type=%s", what, type); | |
557 | return 0; | |
558 | } | |
5e398e54 | 559 | |
135b5212 HH |
560 | log_debug("Found entry what=%s where=/sysroot type=%s", what, type); |
561 | r = add_mount(what, "/sysroot", type, opts, 0, false, false, false, | |
0c17fbce | 562 | false, NULL, NULL, NULL, SPECIAL_INITRD_ROOT_FS_TARGET, "/proc/cmdline"); |
5e398e54 | 563 | |
135b5212 | 564 | return (r < 0) ? r : 0; |
5e398e54 TG |
565 | } |
566 | ||
94734142 | 567 | static int parse_proc_cmdline(void) { |
d0aa9ce5 ZJS |
568 | char _cleanup_free_ *line = NULL; |
569 | char *w, *state; | |
94734142 LP |
570 | int r; |
571 | size_t l; | |
572 | ||
573 | if (detect_container(NULL) > 0) | |
574 | return 0; | |
575 | ||
576 | r = read_one_line_file("/proc/cmdline", &line); | |
577 | if (r < 0) { | |
578 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); | |
579 | return 0; | |
580 | } | |
581 | ||
582 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
d0aa9ce5 | 583 | char _cleanup_free_ *word = NULL; |
94734142 LP |
584 | |
585 | word = strndup(w, l); | |
d0aa9ce5 ZJS |
586 | if (!word) |
587 | return log_oom(); | |
94734142 LP |
588 | |
589 | if (startswith(word, "fstab=")) { | |
590 | r = parse_boolean(word + 6); | |
591 | if (r < 0) | |
592 | log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6); | |
593 | else | |
594 | arg_enabled = r; | |
595 | ||
596 | } else if (startswith(word, "rd.fstab=")) { | |
597 | ||
598 | if (in_initrd()) { | |
599 | r = parse_boolean(word + 6); | |
600 | if (r < 0) | |
601 | log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6); | |
602 | else | |
603 | arg_enabled = r; | |
604 | } | |
605 | ||
606 | } else if (startswith(word, "fstab.") || | |
607 | (in_initrd() && startswith(word, "rd.fstab."))) { | |
608 | ||
609 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
610 | } | |
94734142 LP |
611 | } |
612 | ||
d0aa9ce5 | 613 | return 0; |
94734142 LP |
614 | } |
615 | ||
6b1dc2bd | 616 | int main(int argc, char *argv[]) { |
ac4785b0 | 617 | int r = 0, k, l = 0; |
6b1dc2bd | 618 | |
07719a21 LP |
619 | if (argc > 1 && argc != 4) { |
620 | log_error("This program takes three or no arguments."); | |
6b1dc2bd LP |
621 | return EXIT_FAILURE; |
622 | } | |
623 | ||
624 | if (argc > 1) | |
625 | arg_dest = argv[1]; | |
626 | ||
a6903061 | 627 | log_set_target(LOG_TARGET_SAFE); |
6b1dc2bd LP |
628 | log_parse_environment(); |
629 | log_open(); | |
630 | ||
6b1dc2bd LP |
631 | umask(0022); |
632 | ||
94734142 LP |
633 | if (parse_proc_cmdline() < 0) |
634 | return EXIT_FAILURE; | |
635 | ||
ac4785b0 HH |
636 | if (in_initrd()) |
637 | r = parse_new_root_from_proc_cmdline(); | |
5e398e54 | 638 | |
ac4785b0 HH |
639 | if (!arg_enabled) |
640 | return (r < 0) ? EXIT_FAILURE : EXIT_SUCCESS; | |
641 | ||
df3e57f5 | 642 | k = parse_fstab(NULL, false); |
ac4785b0 HH |
643 | |
644 | if (in_initrd()) | |
645 | l = parse_fstab("/sysroot", true); | |
6b1dc2bd | 646 | |
3d22d1ab | 647 | return (r < 0) || (k < 0) || (l < 0) ? EXIT_FAILURE : EXIT_SUCCESS; |
6b1dc2bd | 648 | } |