f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include <stdio.h>

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include <mntent.h>

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include <errno.h>

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include <string.h>

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include <unistd.h>

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

1346b1f0388f4100bb3c2a2bb23bc881769c020cTom Gundersen#include "log.h"

f5be560181d092c5f52a2b819aedcd48220f36abTom Gundersen#include "util.h"

dd43110f781a9245ec00531456fee68ed763a179Tom Gundersen#include "unit-name.h"

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog#include "path-util.h"

4138fb2c7936758da709eaed3f6b4f3df1d04effPatrik Flykt#include "mount-setup.h"

4138fb2c7936758da709eaed3f6b4f3df1d04effPatrik Flykt#include "special.h"

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include "mkdir.h"

ce43e484465050c619ea9a1991d49b3d6215028bSusant Sahani#include "virt.h"

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen#include "fileio.h"

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersenstatic const char *arg_dest = "/tmp";

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersenstatic bool arg_enabled = true;

06f021a8048583d66202e3ac5cd0a12386d33ac2Tom Gundersen

134e56dcc53970a20a858283650bb92cd5da1d17Lennart Poetteringstatic int device_name(const char *path, char **unit) {

3b653205cf7bd3851befd0a9f6a3ded6e267c173Lennart Poettering char *p;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

aba496a58acf9d9c61314de71353550e579f85eeUmut Tezduyar Lindskog assert(path);

4faefc7ff884eae65a80e82313fd9f4bb859d6dbLennart Poettering

4faefc7ff884eae65a80e82313fd9f4bb859d6dbLennart Poettering if (!is_device_path(path))

aba496a58acf9d9c61314de71353550e579f85eeUmut Tezduyar Lindskog return 0;

1a436809498faf6486815baa0338fb6b8e5def07Tom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen p = unit_name_from_path(path, ".device");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!p)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen *unit = p;

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering return 1;

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta}

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poetteringstatic int mount_find_pri(struct mntent *me, int *ret) {

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering char *end, *pri;

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering unsigned long r;

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering assert(me);

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering assert(ret);

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering pri = hasmntopt(me, "pri");

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering if (!pri)

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen return 0;

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen pri += 4;

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen errno = 0;

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen r = strtoul(pri, &end, 10);

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen if (errno > 0)

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen return -errno;

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen if (end == pri || (*end != ',' && *end != 0))

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen return -EINVAL;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen *ret = (int) r;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen return 1;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen}

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersenstatic int add_swap(const char *what, struct mntent *me) {

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen _cleanup_fclose_ FILE *f = NULL;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen bool noauto, nofail;

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta int r, pri = -1;

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta assert(what);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta assert(me);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta r = mount_find_pri(me, &pri);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta if (r < 0) {

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta log_error("Failed to parse priority");

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta return pri;

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta }

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen noauto = !!hasmntopt(me, "noauto");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen nofail = !!hasmntopt(me, "nofail");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

dbffab87f1504abc9f189dd253111693c99fbd9aTom Gundersen name = unit_name_from_path(what, ".swap");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!name)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen unit = strjoin(arg_dest, "/", name, NULL);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!unit)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

edb85f0d8d0a84f27308a3728f3fde3c52b9dce2Susant Sahani

edb85f0d8d0a84f27308a3728f3fde3c52b9dce2Susant Sahani f = fopen(unit, "wxe");

2cc412b59353576cece2d5b30c6a39c70552f0a0Tom Gundersen if (!f) {

2cc412b59353576cece2d5b30c6a39c70552f0a0Tom Gundersen if (errno == EEXIST)

2cc412b59353576cece2d5b30c6a39c70552f0a0Tom Gundersen log_error("Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);

edbb03e95a3c31bf719d5c6c46eec14d0bcb9c8fTom Gundersen else

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen log_error("Failed to create unit file %s: %m", unit);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return -errno;

1a436809498faf6486815baa0338fb6b8e5def07Tom Gundersen }

1a436809498faf6486815baa0338fb6b8e5def07Tom Gundersen

6a0a2f860f1ca4a10932da3b41dbc3c0139757ccTom Gundersen fputs("# Automatically generated by systemd-fstab-generator\n\n"

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering "[Unit]\n"

5be4d38e31281727b6f45ae869136bb01a1f7790Tom Gundersen "SourcePath=/etc/fstab\n"

bcb7a07e0a785bda1eed658e984ff6b4a11cba9aTom Gundersen "DefaultDependencies=no\n"

4f882b2a5007e51032459e29d15a86df6b5ea9f4Tom Gundersen "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"

1346b1f0388f4100bb3c2a2bb23bc881769c020cTom Gundersen "Before=" SPECIAL_UMOUNT_TARGET "\n", f);

ad0734e890b25751ef8229e47210ff11ae8fa3f3Tom Gundersen

4cc7a82c9490a3c5ae03b1d6d168ce40ba499e23Eugene Yakubovich if (!noauto && !nofail)

f5de5b00204f041aaec828d336c8afd9e860a5c3Tom Gundersen fputs("Before=" SPECIAL_SWAP_TARGET "\n", f);

eb27aeca247a4cf8816fffc4c0dbcab55ead3864Tom Gundersen

e1ea665edac17d75fce01b72dadfa3211b60df2cEugene Yakubovich fprintf(f,

84b5b79a8f7b423c5b7cad4170eb68d57fe5e26cAngus Gibson "\n"

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog "[Swap]\n"

bfa695b5cc37aeb78737c57c84e9e69ea08152c0Tom Gundersen "What=%s\n",

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen what);

dd43110f781a9245ec00531456fee68ed763a179Tom Gundersen

dd43110f781a9245ec00531456fee68ed763a179Tom Gundersen if (pri >= 0)

e1853b00ef7cb56cafd908327dd44b3ab48b402cSusant Sahani fprintf(f,

e1853b00ef7cb56cafd908327dd44b3ab48b402cSusant Sahani "Priority=%i\n",

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering pri);

5a8bcb674f71a20e95df55319b34c556638378ceLennart Poettering

5a8bcb674f71a20e95df55319b34c556638378ceLennart Poettering fflush(f);

c106cc36b9b8e8998eb95299b02f1db9c1209122Tom Gundersen if (ferror(f)) {

c106cc36b9b8e8998eb95299b02f1db9c1209122Tom Gundersen log_error("Failed to write unit file %s: %m", unit);

c106cc36b9b8e8998eb95299b02f1db9c1209122Tom Gundersen return -errno;

ce43e484465050c619ea9a1991d49b3d6215028bSusant Sahani }

ce43e484465050c619ea9a1991d49b3d6215028bSusant Sahani

f048a16b464295a4e0a4f4c1210f06343ad31231Tom Gundersen if (!noauto) {

f048a16b464295a4e0a4f4c1210f06343ad31231Tom Gundersen lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta if (!lnk)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen mkdir_parents_label(lnk, 0755);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta if (symlink(unit, lnk) < 0) {

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen log_error("Failed to create symlink %s: %m", lnk);

67272d157a35e5cda4e5c904eafdcc23d20541d1Tom Gundersen return -errno;

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen }

06f021a8048583d66202e3ac5cd0a12386d33ac2Tom Gundersen

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen r = device_name(what, &device);

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen if (r < 0)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return r;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (r > 0) {

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen free(lnk);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);

16aa63a00b5b1db23a9c0b8de350ebf482d90cd0Tom Gundersen if (!lnk)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen mkdir_parents_label(lnk, 0755);

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog if (symlink(unit, lnk) < 0) {

81163121e649523b4071f67ddc03c2db649036c5Tom Gundersen log_error("Failed to create symlink %s: %m", lnk);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return -errno;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen }

eb0ea358b688a6f83ff305c6b825c61f12b6dcb8Tom Gundersen }

aba496a58acf9d9c61314de71353550e579f85eeUmut Tezduyar Lindskog }

8cd11a0f0f4ca05199e1166f6a07472b296f7455Tom Gundersen

5d3de3fe9cc452f1bfe3c2dcafecbd7f904da4dcLennart Poettering return 0;

c081882f07617e56bcbce54105068137e4e0bb52Susant Sahani}

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

fd6d906cf46ecef45ebbb5a361e1dc436f031d7aLennart Poetteringstatic bool mount_is_bind(struct mntent *me) {

5a8bcb674f71a20e95df55319b34c556638378ceLennart Poettering assert(me);

3d3d425547a3f38473fcf8737b85dfebb630479dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen hasmntopt(me, "bind") ||

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen streq(me->mnt_type, "bind") ||

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen hasmntopt(me, "rbind") ||

16aa63a00b5b1db23a9c0b8de350ebf482d90cd0Tom Gundersen streq(me->mnt_type, "rbind");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen}

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersenstatic bool mount_is_network(struct mntent *me) {

9e7e440835c43d81ffdbc299d2c07daaa641ed50Tom Gundersen assert(me);

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog return

28cc555d8504c9429776aedbbe1fee7101258578Dan Williams hasmntopt(me, "_netdev") ||

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen fstype_is_network(me->mnt_type);

5d3de3fe9cc452f1bfe3c2dcafecbd7f904da4dcLennart Poettering}

5d3de3fe9cc452f1bfe3c2dcafecbd7f904da4dcLennart Poettering

9e7e440835c43d81ffdbc299d2c07daaa641ed50Tom Gundersenstatic bool mount_in_initrd(struct mntent *me) {

46b0c76e2c355c0d0cc4792abb98cde07b28bc53Emil Renner Berthing assert(me);

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen

3d3d425547a3f38473fcf8737b85dfebb630479dTom Gundersen return

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen hasmntopt(me, "x-initrd.mount") ||

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen streq(me->mnt_dir, "/usr");

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering}

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poetteringstatic int add_mount(

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering const char *what,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering const char *where,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering const char *type,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering const char *opts,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering int passno,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering bool noauto,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering bool nofail,

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering bool automount,

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen bool isbind,

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen const char *pre,

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen const char *pre2,

9c0a72f961e00b0447767973e7117e131bea5b5dTom Gundersen const char *online,

1346b1f0388f4100bb3c2a2bb23bc881769c020cTom Gundersen const char *post,

9c0a72f961e00b0447767973e7117e131bea5b5dTom Gundersen const char *source) {

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen _cleanup_free_ char

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL,

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen *automount_name = NULL, *automount_unit = NULL;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen _cleanup_fclose_ FILE *f = NULL;

6a24f1484fcc1f59f89617afbe4282667a358eabTom Gundersen int r;

6a24f1484fcc1f59f89617afbe4282667a358eabTom Gundersen

bbf7c04821a71fec67eaf0e7a34d17afc5913c13Tom Gundersen assert(what);

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen assert(where);

bbf7c04821a71fec67eaf0e7a34d17afc5913c13Tom Gundersen assert(type);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen assert(opts);

52433f6b65eccd1c54606dde999610640f3458acTom Gundersen assert(source);

dbffab87f1504abc9f189dd253111693c99fbd9aTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (streq(type, "autofs"))

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering return 0;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!is_path(where)) {

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen log_warning("Mount point %s is not a valid path, ignoring.", where);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return 0;

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek }

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (mount_point_is_api(where) ||

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen mount_point_ignore(where))

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen return 0;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen name = unit_name_from_path(where, ".mount");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!name)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

8f203c166ecb24f904a068f2d8f0c636c1511a8fTom Gundersen

a97dcc12e486ecff531809802930a26c4da827f2Tom Gundersen unit = strjoin(arg_dest, "/", name, NULL);

a97dcc12e486ecff531809802930a26c4da827f2Tom Gundersen if (!unit)

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen return log_oom();

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen f = fopen(unit, "wxe");

505f8da7325591defe5f751f328bd26915267602Tom Gundersen if (!f) {

45af44d47da6933b260c734ad9ff721f63f80a4dTom Gundersen if (errno == EEXIST)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen log_error("Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?", unit);

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen else

bbf7c04821a71fec67eaf0e7a34d17afc5913c13Tom Gundersen log_error("Failed to create unit file %s: %m", unit);

3bef724f7e7f7eaca69881548b06e221b77d7031Tom Gundersen return -errno;

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering }

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen fprintf(f,

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen "# Automatically generated by systemd-fstab-generator\n\n"

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen "[Unit]\n"

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen "SourcePath=%s\n"

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen "DefaultDependencies=no\n",

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen source);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!path_equal(where, "/")) {

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (pre)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen fprintf(f,

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen "After=%s\n",

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen pre);

dbffab87f1504abc9f189dd253111693c99fbd9aTom Gundersen

505f8da7325591defe5f751f328bd26915267602Tom Gundersen if (pre2)

505f8da7325591defe5f751f328bd26915267602Tom Gundersen fprintf(f,

505f8da7325591defe5f751f328bd26915267602Tom Gundersen "After=%s\n",

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen pre2);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

69a93e7db47addc4495a6ec9dc0fc74092a6ebeeTom Gundersen if (online)

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen fprintf(f,

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen "After=%s\n"

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen "Wants=%s\n",

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen online,

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen online);

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen fprintf(f,

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen "Before=" SPECIAL_UMOUNT_TARGET "\n");

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen }

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen if (post && !noauto && !nofail && !automount)

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen fprintf(f,

6192b846ca0d15602e94ddb5da4420b7c60d64a5Tom Gundersen "Before=%s\n",

7951dea20911969287878e6897b3eca348721adeSusant Sahani post);

7951dea20911969287878e6897b3eca348721adeSusant Sahani

7951dea20911969287878e6897b3eca348721adeSusant Sahani fprintf(f,

7951dea20911969287878e6897b3eca348721adeSusant Sahani "\n"

7951dea20911969287878e6897b3eca348721adeSusant Sahani "[Mount]\n"

7951dea20911969287878e6897b3eca348721adeSusant Sahani "What=%s\n"

7951dea20911969287878e6897b3eca348721adeSusant Sahani "Where=%s\n"

7951dea20911969287878e6897b3eca348721adeSusant Sahani "Type=%s\n"

7951dea20911969287878e6897b3eca348721adeSusant Sahani "FsckPassNo=%i\n",

7951dea20911969287878e6897b3eca348721adeSusant Sahani what,

7951dea20911969287878e6897b3eca348721adeSusant Sahani where,

7951dea20911969287878e6897b3eca348721adeSusant Sahani type,

7951dea20911969287878e6897b3eca348721adeSusant Sahani passno);

7951dea20911969287878e6897b3eca348721adeSusant Sahani

7951dea20911969287878e6897b3eca348721adeSusant Sahani if (!isempty(opts) &&

7951dea20911969287878e6897b3eca348721adeSusant Sahani !streq(opts, "defaults"))

7951dea20911969287878e6897b3eca348721adeSusant Sahani fprintf(f,

7951dea20911969287878e6897b3eca348721adeSusant Sahani "Options=%s\n",

7951dea20911969287878e6897b3eca348721adeSusant Sahani opts);

7951dea20911969287878e6897b3eca348721adeSusant Sahani

7951dea20911969287878e6897b3eca348721adeSusant Sahani fflush(f);

7951dea20911969287878e6897b3eca348721adeSusant Sahani if (ferror(f)) {

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani log_error("Failed to write unit file %s: %m", unit);

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani return -errno;

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani }

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani if (!noauto) {

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani if (post) {

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani lnk = strjoin(arg_dest, "/", post, nofail || automount ? ".wants/" : ".requires/", name, NULL);

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani if (!lnk)

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani return log_oom();

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani

85a8eeee36b57c1ab382b0225fa9a87525bbeee9Susant Sahani mkdir_parents_label(lnk, 0755);

02b59d57e0c08231645120077f651151f5bb2babTom Gundersen if (symlink(unit, lnk) < 0) {

c0dda18697e0994272c0c9616d36f6777b60e2c7Tom Gundersen log_error("Failed to create symlink %s: %m", lnk);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return -errno;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen }

f048a16b464295a4e0a4f4c1210f06343ad31231Tom Gundersen }

28cc555d8504c9429776aedbbe1fee7101258578Dan Williams

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!isbind &&

f882c247ad59776c3a7753bb963c1f8e2386cb79Tom Gundersen !path_equal(where, "/")) {

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog

5c1d3fc93d91384bbac29adf01074fa4375317eaUmut Tezduyar Lindskog r = device_name(what, &device);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (r < 0)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return r;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (r > 0) {

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen free(lnk);

71a6151083d842b2f5bf04e50239f0bf85d34d2eTom Gundersen lnk = strjoin(arg_dest, "/", device, ".wants/", name, NULL);

71a6151083d842b2f5bf04e50239f0bf85d34d2eTom Gundersen if (!lnk)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen mkdir_parents_label(lnk, 0755);

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen if (symlink(unit, lnk) < 0) {

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen log_error("Failed to create symlink %s: %m", lnk);

5d8e593dce074bff966fc0a46579c61b4f3bc33aSusant Sahani return -errno;

5d8e593dce074bff966fc0a46579c61b4f3bc33aSusant Sahani }

5d8e593dce074bff966fc0a46579c61b4f3bc33aSusant Sahani }

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen }

f048a16b464295a4e0a4f4c1210f06343ad31231Tom Gundersen }

f048a16b464295a4e0a4f4c1210f06343ad31231Tom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (automount && !path_equal(where, "/")) {

f882c247ad59776c3a7753bb963c1f8e2386cb79Tom Gundersen automount_name = unit_name_from_path(where, ".automount");

aba496a58acf9d9c61314de71353550e579f85eeUmut Tezduyar Lindskog if (!name)

407fe036a24834203aca6c1eec7d74d9ad3e9ee0Tom Gundersen return log_oom();

5a8bcb674f71a20e95df55319b34c556638378ceLennart Poettering

5a8bcb674f71a20e95df55319b34c556638378ceLennart Poettering automount_unit = strjoin(arg_dest, "/", automount_name, NULL);

9505d3c6deda0452c22ab2ed47bca74b98d87a17Tom Gundersen if (!automount_unit)

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen return log_oom();

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen fclose(f);

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen f = fopen(automount_unit, "wxe");

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen if (!f) {

71a6151083d842b2f5bf04e50239f0bf85d34d2eTom Gundersen log_error("Failed to create unit file %s: %m", automount_unit);

71a6151083d842b2f5bf04e50239f0bf85d34d2eTom Gundersen return -errno;

f579559b3a14c1f1ef96c372e7626c4733e6ef7dTom Gundersen }

eb0ea358b688a6f83ff305c6b825c61f12b6dcb8Tom Gundersen

eb0ea358b688a6f83ff305c6b825c61f12b6dcb8Tom Gundersen fprintf(f,

eb0ea358b688a6f83ff305c6b825c61f12b6dcb8Tom Gundersen "# Automatically generated by systemd-fstab-generator\n\n"

eb0ea358b688a6f83ff305c6b825c61f12b6dcb8Tom Gundersen "[Unit]\n"

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen "SourcePath=%s\n"

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen "DefaultDependencies=no\n"

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen "Conflicts=" SPECIAL_UMOUNT_TARGET "\n"

6ae115c1fe95611b39d2f20cfcea3d385429f59eTom Gundersen "Before=" SPECIAL_UMOUNT_TARGET "\n",

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta source);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta if (post)

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta fprintf(f,

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta "Before= %s\n",

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta post);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta fprintf(f,

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta "[Automount]\n"

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta "Where=%s\n",

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta where);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta fflush(f);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta if (ferror(f)) {

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta log_error("Failed to write unit file %s: %m", automount_unit);

b98b483bac585af754e8a22ea890db8486905d8aAlin Rauta return -errno;

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen }

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen free(lnk);

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen if (!lnk)

ed942a9eb22d50f667909ad6184b45015d28d054Tom Gundersen return log_oom();

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen mkdir_parents_label(lnk, 0755);

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen if (symlink(automount_unit, lnk) < 0) {

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen log_error("Failed to create symlink %s: %m", lnk);

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen return -errno;

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen }

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen }

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen

bd8f65387673e29f46136a4ed172097035002c23Tom Gundersen return 0;

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering}

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poetteringstatic int parse_fstab(const char *prefix, bool initrd) {

0dd25fb9f005d8ab7ac4bc10a609d00569f8c56aLennart Poettering _cleanup_free_ char *fstab_path = NULL;

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering FILE *f;

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering int r = 0;

11bf3cced13c885ca215c108cb0bdb7a148520d6Lennart Poettering struct mntent *me;

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering fstab_path = strjoin(strempty(prefix), "/etc/fstab", NULL);

cb9fc36a1211967e8c58b0502a26c42552ac8060Lennart Poettering if (!fstab_path)

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering return log_oom();

769d324c99aab129148bd25f5f663ef441287d86Lennart Poettering

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen f = setmntent(fstab_path, "r");

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen if (!f) {

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen if (errno == ENOENT)

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen return 0;

e331e24649213f2e093e16e4d3d64ee823dfc375Tom Gundersen

log_error("Failed to open %s/etc/fstab: %m", strempty(prefix));

return -errno;

}

while ((me = getmntent(f))) {

_cleanup_free_ char *where = NULL, *what = NULL;

int k;

if (initrd && !mount_in_initrd(me))

continue;

what = fstab_node_to_udev_node(me->mnt_fsname);

where = strjoin(strempty(prefix), me->mnt_dir, NULL);

if (!what || !where) {

r = log_oom();

goto finish;

}

if (is_path(where))

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);

else {

bool noauto, nofail, automount, isbind;

const char *pre, *pre2, *post, *online;

noauto = !!hasmntopt(me, "noauto");

nofail = !!hasmntopt(me, "nofail");

automount =

hasmntopt(me, "comment=systemd.automount") ||

hasmntopt(me, "x-systemd.automount");

isbind = mount_is_bind(me);

if (initrd) {

pre = pre2 = online = NULL;

post = SPECIAL_INITRD_FS_TARGET;

} else if (mount_in_initrd(me)) {

pre = pre2 = online = NULL;

post = SPECIAL_INITRD_ROOT_FS_TARGET;

} else if (mount_is_network(me)) {

pre = SPECIAL_REMOTE_FS_PRE_TARGET;

pre2 = SPECIAL_NETWORK_TARGET;

online = SPECIAL_NETWORK_ONLINE_TARGET;

post = SPECIAL_REMOTE_FS_TARGET;

} else {

pre = SPECIAL_LOCAL_FS_PRE_TARGET;

pre2 = online = NULL;

post = SPECIAL_LOCAL_FS_TARGET;

}

k = add_mount(what, where, me->mnt_type, me->mnt_opts,

me->mnt_passno, noauto, nofail, automount,

isbind, pre, pre2, online, post, fstab_path);

}

if (k < 0)

r = k;

}

finish:

endmntent(f);

return r;

}

static int parse_new_root_from_proc_cmdline(void) {

_cleanup_free_ char *what = NULL, *type = NULL, *opts = NULL, *line = NULL;

char *w, *state;

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;

}

opts = strdup("ro");

type = strdup("auto");

if (!opts || !type)

return log_oom();

/* root= and roofstype= may occur more than once, the last instance should take precedence.

FOREACH_WORD_QUOTED(w, l, line, state) {

_cleanup_free_ char *word;

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=")) {

char *o;

o = strjoin(opts, ",", word + 10, NULL);

if (!o)

return log_oom();

free(opts);

opts = o;

} else if (streq(word, "ro") || streq(word, "rw")) {

char *o;

o = strjoin(opts, ",", word, NULL);

if (!o)

return log_oom();

free(opts);

opts = o;

}

}

if (!what) {

log_debug("Could not find a root= entry on the kernel commandline.");

return 0;

}

if (what[0] != '/') {

log_debug("Skipping entry what=%s where=/sysroot type=%s", what, type);

return 0;

}

log_debug("Found entry what=%s where=/sysroot type=%s", what, type);

r = add_mount(what, "/sysroot", type, opts, 0, false, false, false,

false, NULL, NULL, NULL, SPECIAL_INITRD_ROOT_FS_TARGET, "/proc/cmdline");

return (r < 0) ? r : 0;

}

static int parse_proc_cmdline(void) {

_cleanup_free_ char *line = NULL;

char *w, *state;

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) {

_cleanup_free_ char *word = NULL;

word = strndup(w, l);

if (!word)

return log_oom();

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);

}

}

return 0;

}

int main(int argc, char *argv[]) {

int r = 0, k, l = 0;

if (argc > 1 && argc != 4) {

log_error("This program takes three or no arguments.");

return EXIT_FAILURE;

}

if (argc > 1)

arg_dest = argv[1];

log_set_target(LOG_TARGET_SAFE);

log_parse_environment();

log_open();

umask(0022);

if (parse_proc_cmdline() < 0)

return EXIT_FAILURE;

if (in_initrd())

r = parse_new_root_from_proc_cmdline();

if (!arg_enabled)

return (r < 0) ? EXIT_FAILURE : EXIT_SUCCESS;

k = parse_fstab(NULL, false);

if (in_initrd())

l = parse_fstab("/sysroot", true);

return (r < 0) || (k < 0) || (l < 0) ? EXIT_FAILURE : EXIT_SUCCESS;

}