X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Fgenerator.c;h=81284995f5ab1c2d58ecf68513756abcf72ee3f0;hp=5ac7b5f02f379fae03a7ff5392b77f6d6ee6a8e1;hb=24166fdaeee2e0e48cfaf0a3228581c3f11f5627;hpb=eb66db55fc4b342e4253065886e0cc0419c45a07

diff --git a/src/shared/generator.c b/src/shared/generator.c
index 5ac7b5f02..81284995f 100644
--- a/src/shared/generator.c
+++ b/src/shared/generator.c
@@ -19,7 +19,6 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <string.h>
 #include <unistd.h>
 
 #include "util.h"
@@ -28,16 +27,64 @@
 #include "unit-name.h"
 #include "generator.h"
 #include "path-util.h"
+#include "fstab-util.h"
+#include "fileio.h"
+#include "dropin.h"
+
+static int write_fsck_sysroot_service(const char *dir, const char *what) {
+        const char *unit;
+        _cleanup_free_ char *device = NULL;
+        _cleanup_fclose_ FILE *f = NULL;
+        int r;
+
+        unit = strjoina(dir, "/systemd-fsck-root.service");
+        log_debug("Creating %s", unit);
+
+        r = unit_name_from_path(what, ".device", &device);
+        if (r < 0)
+                return log_error_errno(r, "Failed to convert device \"%s\" to unit name: %m", what);
+
+        f = fopen(unit, "wxe");
+        if (!f)
+                return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
+
+        fprintf(f,
+                "# Automatically generated by %1$s\n\n"
+                "[Unit]\n"
+                "Documentation=man:systemd-fsck-root.service(8)\n"
+                "Description=File System Check on %2$s\n"
+                "DefaultDependencies=no\n"
+                "BindsTo=%3$s\n"
+                "After=%3$s\n"
+                "Before=shutdown.target\n"
+                "\n"
+                "[Service]\n"
+                "Type=oneshot\n"
+                "RemainAfterExit=yes\n"
+                "ExecStart=/usr/lib/systemd/systemd-fsck %2$s\n"
+                "TimeoutSec=0\n",
+                program_invocation_short_name,
+                what,
+                device);
+
+        r = fflush_and_check(f);
+        if (r < 0)
+                return log_error_errno(r, "Failed to write unit file %s: %m", unit);
+
+        return 0;
+}
 
 int generator_write_fsck_deps(
                 FILE *f,
-                const char *dest,
+                const char *dir,
                 const char *what,
                 const char *where,
                 const char *fstype) {
 
+        int r;
+
         assert(f);
-        assert(dest);
+        assert(dir);
         assert(what);
         assert(where);
 
@@ -47,39 +94,89 @@ int generator_write_fsck_deps(
         }
 
         if (!isempty(fstype) && !streq(fstype, "auto")) {
-                int r;
                 r = fsck_exists(fstype);
-                if (r < 0) {
-                        log_warning("Checking was requested for %s, but fsck.%s cannot be used: %s", what, fstype, strerror(-r));
+                if (r == -ENOENT) {
                         /* treat missing check as essentially OK */
-                        return r == -ENOENT ? 0 : r;
-                }
+                        log_debug_errno(r, "Checking was requested for %s, but fsck.%s does not exist: %m", what, fstype);
+                        return 0;
+                } else if (r < 0)
+                        return log_warning_errno(r, "Checking was requested for %s, but fsck.%s cannot be used: %m", what, fstype);
         }
 
-        if (streq(where, "/")) {
+        if (path_equal(where, "/")) {
                 char *lnk;
 
-                lnk = strappenda(dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service");
+                lnk = strjoina(dir, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service");
 
                 mkdir_parents(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;
-                }
+                if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0)
+                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
 
         } else {
-                _cleanup_free_ char *fsck = NULL;
+                _cleanup_free_ char *_fsck = NULL;
+                const char *fsck;
+
+                if (in_initrd() && path_equal(where, "/sysroot")) {
+                        r = write_fsck_sysroot_service(dir, what);
+                        if (r < 0)
+                                return r;
 
-                fsck = unit_name_from_path_instance("systemd-fsck", what, ".service");
-                if (!fsck)
-                        return log_oom();
+                        fsck = "systemd-fsck-root.service";
+                } else {
+                        r = unit_name_from_path_instance("systemd-fsck", what, ".service", &_fsck);
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to create fsck service name: %m");
+
+                        fsck = _fsck;
+                }
 
                 fprintf(f,
-                        "RequiresOverridable=%s\n"
-                        "After=%s\n",
-                        fsck,
+                        "RequiresOverridable=%1$s\n"
+                        "After=%1$s\n",
                         fsck);
         }
 
         return 0;
 }
+
+int generator_write_timeouts(
+                const char *dir,
+                const char *what,
+                const char *where,
+                const char *opts,
+                char **filtered) {
+
+        /* Allow configuration how long we wait for a device that
+         * backs a mount point to show up. This is useful to support
+         * endless device timeouts for devices that show up only after
+         * user input, like crypto devices. */
+
+        _cleanup_free_ char *node = NULL, *unit = NULL, *timeout = NULL;
+        usec_t u;
+        int r;
+
+        r = fstab_filter_options(opts, "comment=systemd.device-timeout\0" "x-systemd.device-timeout\0",
+                                 NULL, &timeout, filtered);
+        if (r <= 0)
+                return r;
+
+        r = parse_sec(timeout, &u);
+        if (r < 0) {
+                log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout);
+                return 0;
+        }
+
+        node = fstab_node_to_udev_node(what);
+        if (!node)
+                return log_oom();
+
+        r = unit_name_from_path(node, ".device", &unit);
+        if (r < 0)
+                return log_error_errno(r, "Failed to make unit name from path: %m");
+
+        return write_drop_in_format(dir, unit, 50, "device-timeout",
+                                    "# Automatically generated by %s\n\n"
+                                    "[Unit]\nJobTimeoutSec=" USEC_FMT,
+                                    program_invocation_short_name,
+                                    u / USEC_PER_SEC);
+}