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Diffstat (limited to 'src/fstab-generator/fstab-generator.c')
-rw-r--r--src/fstab-generator/fstab-generator.c133
1 files changed, 52 insertions, 81 deletions
diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index 5521a864df..aac1a436ec 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -33,9 +33,10 @@
#include "special.h"
#include "mkdir.h"
#include "fileio.h"
+#include "generator.h"
static const char *arg_dest = "/tmp";
-static bool arg_enabled = true;
+static bool arg_fstab_enabled = true;
static int mount_find_pri(struct mntent *me, int *ret) {
char *end, *pri;
@@ -146,57 +147,6 @@ static bool mount_in_initrd(struct mntent *me) {
streq(me->mnt_dir, "/usr");
}
-static int add_fsck(FILE *f, const char *what, const char *where, const char *type, int passno) {
- assert(f);
-
- if (passno == 0)
- return 0;
-
- if (!is_device_path(what)) {
- log_warning("Checking was requested for \"%s\", but it is not a device.", what);
- return 0;
- }
-
- if (type && !streq(type, "auto")) {
- int r;
- const char *checker;
-
- checker = strappenda("/sbin/fsck.", type);
- r = access(checker, X_OK);
- if (r < 0) {
- log_warning("Checking was requested for %s, but %s cannot be used: %m", what, checker);
-
- /* treat missing check as essentially OK */
- return errno == ENOENT ? 0 : -errno;
- }
- }
-
- if (streq(where, "/")) {
- char *lnk;
-
- lnk = strappenda(arg_dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service");
- mkdir_parents_label(lnk, 0755);
- if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- return -errno;
- }
- } else {
- _cleanup_free_ char *fsck = NULL;
-
- fsck = unit_name_from_path_instance("systemd-fsck", what, ".service");
- if (!fsck)
- return log_oom();
-
- fprintf(f,
- "RequiresOverridable=%s\n"
- "After=%s\n",
- fsck,
- fsck);
- }
-
- return 0;
-}
-
static int add_mount(
const char *what,
const char *where,
@@ -208,6 +158,7 @@ static int add_mount(
bool automount,
const char *post,
const char *source) {
+
_cleanup_free_ char
*name = NULL, *unit = NULL, *lnk = NULL,
*automount_name = NULL, *automount_unit = NULL;
@@ -232,6 +183,12 @@ static int add_mount(
mount_point_ignore(where))
return 0;
+ if (path_equal(where, "/")) {
+ automount = false;
+ noauto = false;
+ nofail = false;
+ }
+
name = unit_name_from_path(where, ".mount");
if (!name)
return log_oom();
@@ -260,9 +217,11 @@ static int add_mount(
"Before=%s\n",
post);
- r = add_fsck(f, what, where, type, passno);
- if (r < 0)
- return r;
+ if (passno != 0) {
+ r = generator_write_fsck_deps(f, arg_dest, what, where, type);
+ if (r < 0)
+ return r;
+ }
fprintf(f,
"\n"
@@ -274,8 +233,7 @@ static int add_mount(
where,
type);
- if (!isempty(opts) &&
- !streq(opts, "defaults"))
+ if (!isempty(opts) && !streq(opts, "defaults"))
fprintf(f,
"Options=%s\n",
opts);
@@ -300,7 +258,7 @@ static int add_mount(
}
}
- if (automount && !path_equal(where, "/")) {
+ if (automount) {
automount_name = unit_name_from_path(where, ".automount");
if (!automount_name)
return log_oom();
@@ -324,7 +282,7 @@ static int add_mount(
if (post)
fprintf(f,
- "Before= %s\n",
+ "Before=%s\n",
post);
fprintf(f,
@@ -353,19 +311,19 @@ static int add_mount(
return 0;
}
-static int parse_fstab(const char *prefix, bool initrd) {
- char *fstab_path;
+static int parse_fstab(bool initrd) {
_cleanup_endmntent_ FILE *f;
- int r = 0;
+ const char *fstab_path;
struct mntent *me;
+ int r = 0;
- fstab_path = strappenda(strempty(prefix), "/etc/fstab");
- f = setmntent(fstab_path, "r");
+ fstab_path = initrd ? "/sysroot/etc/fstab" : "/etc/fstab";
+ f = setmntent(fstab_path, "re");
if (!f) {
if (errno == ENOENT)
return 0;
- log_error("Failed to open %s/etc/fstab: %m", strempty(prefix));
+ log_error("Failed to open %s: %m", fstab_path);
return -errno;
}
@@ -377,8 +335,11 @@ static int parse_fstab(const char *prefix, bool initrd) {
continue;
what = fstab_node_to_udev_node(me->mnt_fsname);
- where = strjoin(strempty(prefix), me->mnt_dir, NULL);
- if (!what || !where)
+ if (!what)
+ return log_oom();
+
+ where = initrd ? strappend("/sysroot/", me->mnt_dir) : strdup(me->mnt_dir);
+ if (!where)
return log_oom();
if (is_path(where))
@@ -398,15 +359,14 @@ static int parse_fstab(const char *prefix, bool initrd) {
hasmntopt(me, "comment=systemd.automount") ||
hasmntopt(me, "x-systemd.automount");
- if (initrd) {
+ if (initrd)
post = SPECIAL_INITRD_FS_TARGET;
- } else if (mount_in_initrd(me)) {
+ else if (mount_in_initrd(me))
post = SPECIAL_INITRD_ROOT_FS_TARGET;
- } else if (mount_is_network(me)) {
+ else if (mount_is_network(me))
post = SPECIAL_REMOTE_FS_TARGET;
- } else {
+ else
post = SPECIAL_LOCAL_FS_TARGET;
- }
k = add_mount(what, where, me->mnt_type, me->mnt_opts,
me->mnt_passno, noauto, nofail, automount,
@@ -505,11 +465,12 @@ static int parse_proc_cmdline_word(const char *word) {
int r;
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;
+ arg_fstab_enabled = r;
} else if (startswith(word, "rd.fstab=")) {
@@ -518,7 +479,7 @@ static int parse_proc_cmdline_word(const char *word) {
if (r < 0)
log_warning("Failed to parse fstab switch %s. Ignoring.", word + 9);
else
- arg_enabled = r;
+ arg_fstab_enabled = r;
}
} else if (startswith(word, "fstab.") ||
@@ -531,7 +492,7 @@ static int parse_proc_cmdline_word(const char *word) {
}
int main(int argc, char *argv[]) {
- int r = 0, k, l = 0;
+ int r = 0;
if (argc > 1 && argc != 4) {
log_error("This program takes three or no arguments.");
@@ -550,16 +511,26 @@ int main(int argc, char *argv[]) {
if (parse_proc_cmdline(parse_proc_cmdline_word) < 0)
return EXIT_FAILURE;
+ /* Always honour root= in the kernel command line if we are in an initrd */
if (in_initrd())
r = parse_new_root_from_proc_cmdline();
- if (!arg_enabled)
- return (r < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
+ /* Honour /etc/fstab only when that's enabled */
+ if (arg_fstab_enabled) {
+ int k;
- k = parse_fstab(NULL, false);
+ /* Parse the local /etc/fstab, possibly from the initrd */
+ k = parse_fstab(false);
+ if (k < 0)
+ r = k;
- if (in_initrd())
- l = parse_fstab("/sysroot", true);
+ /* If running in the initrd also parse the /etc/fstab from the host */
+ if (in_initrd()) {
+ k = parse_fstab(true);
+ if (k < 0)
+ r = k;
+ }
+ }
- return (r < 0) || (k < 0) || (l < 0) ? EXIT_FAILURE : EXIT_SUCCESS;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-18 18:47:53 +0000