[systemd-devel] [PATCH] core/cryptsetup: Add WantsMountFor option to enable fallback to password request for crypt mounts.

Przemek Rudy prudy1 at o2.pl
Sun May 25 04:39:41 PDT 2014


Updated using 'UNIT_REQUIRES' instead 'true'.
---
 src/core/automount.c                  |   2 +-
 src/core/dbus-unit.c                  |   3 +-
 src/core/load-fragment-gperf.gperf.m4 |   3 +-
 src/core/load-fragment.c              |   8 +--
 src/core/load-fragment.h              |   2 +-
 src/core/manager.c                    |  11 ++--
 src/core/manager.h                    |   8 ++-
 src/core/mount.c                      |  40 ++++++++------
 src/core/path.c                       |   2 +-
 src/core/socket.c                     |   2 +-
 src/core/swap.c                       |   2 +-
 src/core/timer.c                      |   2 +-
 src/core/unit.c                       | 101 ++++++++++++++++++++--------------
 src/core/unit.h                       |   7 +--
 src/cryptsetup/cryptsetup-generator.c |   3 +-
 15 files changed, 111 insertions(+), 85 deletions(-)

diff --git a/src/core/automount.c b/src/core/automount.c
index 65e6d6f..6cfe7b6 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -124,7 +124,7 @@ static int automount_add_mount_links(Automount *a) {
         if (r < 0)
                 return r;
 
-        return unit_require_mounts_for(UNIT(a), parent);
+        return unit_needs_mounts_for(UNIT(a), parent, UNIT_REQUIRES);
 }
 
 static int automount_add_default_dependencies(Automount *a) {
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 07e7f20..18d21ff 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -515,7 +515,8 @@ const sd_bus_vtable bus_unit_vtable[] = {
         SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_JOINS_NAMESPACE_OF]), SD_BUS_VTABLE_PROPERTY_CONST),
-        SD_BUS_PROPERTY("RequiresMountsFor", "as", NULL, offsetof(Unit, requires_mounts_for), SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("RequiresMountsFor", "as", NULL, offsetof(Unit, needs_mounts_for[0]), SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("WantsMountsFor", "as", NULL, offsetof(Unit, needs_mounts_for[1]), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST),
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index 21bccbb..7b9406b 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -138,7 +138,8 @@ Unit.ReloadPropagatedFrom,       config_parse_unit_deps,             UNIT_RELOAD
 Unit.PropagateReloadFrom,        config_parse_unit_deps,             UNIT_RELOAD_PROPAGATED_FROM,   0
 Unit.PartOf,                     config_parse_unit_deps,             UNIT_PART_OF,                  0
 Unit.JoinsNamespaceOf,           config_parse_unit_deps,             UNIT_JOINS_NAMESPACE_OF,       0
-Unit.RequiresMountsFor,          config_parse_unit_requires_mounts_for, 0,                          0
+Unit.RequiresMountsFor,          config_parse_unit_needs_mounts_for, UNIT_REQUIRES,                 0
+Unit.WantsMountsFor,             config_parse_unit_needs_mounts_for, UNIT_WANTS,                    0
 Unit.StopWhenUnneeded,           config_parse_bool,                  0,                             offsetof(Unit, stop_when_unneeded)
 Unit.RefuseManualStart,          config_parse_bool,                  0,                             offsetof(Unit, refuse_manual_start)
 Unit.RefuseManualStop,           config_parse_bool,                  0,                             offsetof(Unit, refuse_manual_stop)
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 3b36d15..aadc930 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -2002,7 +2002,7 @@ int config_parse_unit_condition_null(const char *unit,
 DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
 DEFINE_CONFIG_PARSE_ENUM(config_parse_failure_action, failure_action, FailureAction, "Failed to parse failure action specifier");
 
-int config_parse_unit_requires_mounts_for(
+int config_parse_unit_needs_mounts_for(
                 const char *unit,
                 const char *filename,
                 unsigned line,
@@ -2037,10 +2037,10 @@ int config_parse_unit_requires_mounts_for(
                         continue;
                 }
 
-                r = unit_require_mounts_for(u, n);
+                r = unit_needs_mounts_for(u, n, ltype);
                 if (r < 0) {
                         log_syntax(unit, LOG_ERR, filename, line, r,
-                                   "Failed to add required mount for, ignoring: %s", rvalue);
+                                   "Failed to add %s mount for, ignoring: %s", ltype == UNIT_REQUIRES ? "required" : "wanted", rvalue);
                         continue;
                 }
         }
@@ -3421,7 +3421,7 @@ void unit_dump_config_items(FILE *f) {
                 { config_parse_sec,                   "SECONDS" },
                 { config_parse_nsec,                  "NANOSECONDS" },
                 { config_parse_namespace_path_strv,   "PATH [...]" },
-                { config_parse_unit_requires_mounts_for, "PATH [...]" },
+                { config_parse_unit_needs_mounts_for, "PATH [...]" },
                 { config_parse_exec_mount_flags,      "MOUNTFLAG [...]" },
                 { config_parse_unit_string_printf,    "STRING" },
                 { config_parse_trigger_unit,          "UNIT" },
diff --git a/src/core/load-fragment.h b/src/core/load-fragment.h
index 242fd27..05aba1d 100644
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@@ -73,7 +73,7 @@ int config_parse_unit_condition_null(const char *unit, const char *filename, uns
 int config_parse_kill_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_notify_access(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_failure_action(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_requires_mounts_for(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_needs_mounts_for(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_syscall_filter(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_syscall_archs(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 int config_parse_syscall_errno(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
diff --git a/src/core/manager.c b/src/core/manager.c
index 5772f40..9e239d8 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -827,8 +827,11 @@ void manager_free(Manager *m) {
         for (i = 0; i < _RLIMIT_MAX; i++)
                 free(m->rlimit[i]);
 
-        assert(hashmap_isempty(m->units_requiring_mounts_for));
-        hashmap_free(m->units_requiring_mounts_for);
+        assert(hashmap_isempty(m->units_need_mounts_for[0]));
+        hashmap_free(m->units_need_mounts_for[0]);
+
+        assert(hashmap_isempty(m->units_need_mounts_for[1]));
+        hashmap_free(m->units_need_mounts_for[1]);
 
         free(m);
 }
@@ -2837,7 +2840,7 @@ int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, U
         return 1;
 }
 
-Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
+Set *manager_get_units_need_mounts_for(Manager *m, const char *path, bool strong) {
         char p[strlen(path)+1];
 
         assert(m);
@@ -2846,7 +2849,7 @@ Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) {
         strcpy(p, path);
         path_kill_slashes(p);
 
-        return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p);
+        return hashmap_get(m->units_need_mounts_for[!strong], streq(p, "/") ? "" : p);
 }
 
 const char *manager_get_runtime_prefix(Manager *m) {
diff --git a/src/core/manager.h b/src/core/manager.h
index a3de351..e80fc26 100644
--- a/src/core/manager.h
+++ b/src/core/manager.h
@@ -266,8 +266,10 @@ struct Manager {
 
         /* This maps all possible path prefixes to the units needing
          * them. It's a hashmap with a path string as key and a Set as
-         * value where Unit objects are contained. */
-        Hashmap *units_requiring_mounts_for;
+         * value where Unit objects are contained.
+         * [0] - map of required (strong) paths
+         * [1] - map of wanted (weak) paths */
+        Hashmap *units_need_mounts_for[2];
 
         /* Reference to the kdbus bus control fd */
         int kdbus_fd;
@@ -334,7 +336,7 @@ void manager_set_show_status(Manager *m, ShowStatus mode);
 void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) _printf_(4,5);
 void manager_flip_auto_status(Manager *m, bool enable);
 
-Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path);
+Set *manager_get_units_need_mounts_for(Manager *m, const char *path, bool strong);
 
 const char *manager_get_runtime_prefix(Manager *m);
 
diff --git a/src/core/mount.c b/src/core/mount.c
index a979837..c1fdaf4 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -236,6 +236,7 @@ static int mount_add_mount_links(Mount *m) {
         Iterator i;
         Set *s;
         int r;
+        bool strong = false;
 
         assert(m);
 
@@ -246,7 +247,7 @@ static int mount_add_mount_links(Mount *m) {
                 if (r < 0)
                         return r;
 
-                r = unit_require_mounts_for(UNIT(m), parent);
+                r = unit_needs_mounts_for(UNIT(m), parent, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
@@ -259,33 +260,36 @@ static int mount_add_mount_links(Mount *m) {
             path_is_absolute(pm->what) &&
             !mount_is_network(pm)) {
 
-                r = unit_require_mounts_for(UNIT(m), pm->what);
+                r = unit_needs_mounts_for(UNIT(m), pm->what, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
 
-        /* Adds in links to other units that use this path or paths
-         * further down in the hierarchy */
-        s = manager_get_units_requiring_mounts_for(UNIT(m)->manager, m->where);
-        SET_FOREACH(other, s, i) {
+        do {
+                /* Adds in links to other units that use this path or paths
+                 * further down in the hierarchy */
+                s = manager_get_units_need_mounts_for(UNIT(m)->manager, m->where, strong);
+                SET_FOREACH(other, s, i) {
 
-                if (other->load_state != UNIT_LOADED)
-                        continue;
-
-                if (other == UNIT(m))
-                        continue;
+                        if (other->load_state != UNIT_LOADED)
+                                continue;
 
-                r = unit_add_dependency(other, UNIT_AFTER, UNIT(m), true);
-                if (r < 0)
-                        return r;
+                        if (other == UNIT(m))
+                                continue;
 
-                if (UNIT(m)->fragment_path) {
-                        /* If we have fragment configuration, then make this dependency required */
-                        r = unit_add_dependency(other, UNIT_REQUIRES, UNIT(m), true);
+                        r = unit_add_dependency(other, UNIT_AFTER, UNIT(m), true);
                         if (r < 0)
                                 return r;
+
+                        if (UNIT(m)->fragment_path) {
+                                /* If we have fragment configuration, then make this dependency needed */
+                                r = unit_add_dependency(other, strong ? UNIT_REQUIRES : UNIT_WANTS, UNIT(m), true);
+                                if (r < 0)
+                                        return r;
+                        }
                 }
-        }
+                strong = !strong;
+        } while (strong);
 
         return 0;
 }
diff --git a/src/core/path.c b/src/core/path.c
index 20e454d..3743920 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -304,7 +304,7 @@ static int path_add_mount_links(Path *p) {
         assert(p);
 
         LIST_FOREACH(spec, s, p->specs) {
-                r = unit_require_mounts_for(UNIT(p), s->path);
+                r = unit_needs_mounts_for(UNIT(p), s->path, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
diff --git a/src/core/socket.c b/src/core/socket.c
index 536904f..bb825a3 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -255,7 +255,7 @@ static int socket_add_mount_links(Socket *s) {
                 if (!path)
                         continue;
 
-                r = unit_require_mounts_for(UNIT(s), path);
+                r = unit_needs_mounts_for(UNIT(s), path, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
diff --git a/src/core/swap.c b/src/core/swap.c
index 10eed6d..3a16366 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -327,7 +327,7 @@ static int swap_load(Unit *u) {
                                 return r;
                 }
 
-                r = unit_require_mounts_for(UNIT(s), s->what);
+                r = unit_needs_mounts_for(UNIT(s), s->what, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
 
diff --git a/src/core/timer.c b/src/core/timer.c
index b0a9023..b7440fa 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -138,7 +138,7 @@ static int timer_setup_persistent(Timer *t) {
 
         if (UNIT(t)->manager->running_as == SYSTEMD_SYSTEM) {
 
-                r = unit_require_mounts_for(UNIT(t), "/var/lib/systemd/timers");
+                r = unit_needs_mounts_for(UNIT(t), "/var/lib/systemd/timers", UNIT_REQUIRES);
                 if (r < 0)
                         return r;
 
diff --git a/src/core/unit.c b/src/core/unit.c
index 6ac359e..a2f2e36 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -400,32 +400,33 @@ static void unit_remove_transient(Unit *u) {
         }
 }
 
-static void unit_free_requires_mounts_for(Unit *u) {
+static void unit_free_needs_mounts_for(Unit *u, UnitDependency d) {
         char **j;
+        bool severity = (d != UNIT_REQUIRES);
 
-        STRV_FOREACH(j, u->requires_mounts_for) {
+        STRV_FOREACH(j, u->needs_mounts_for[severity]) {
                 char s[strlen(*j) + 1];
 
                 PATH_FOREACH_PREFIX_MORE(s, *j) {
                         char *y;
                         Set *x;
 
-                        x = hashmap_get2(u->manager->units_requiring_mounts_for, s, (void**) &y);
+                        x = hashmap_get2(u->manager->units_need_mounts_for[severity], s, (void**) &y);
                         if (!x)
                                 continue;
 
                         set_remove(x, u);
 
                         if (set_isempty(x)) {
-                                hashmap_remove(u->manager->units_requiring_mounts_for, y);
+                                hashmap_remove(u->manager->units_need_mounts_for[severity], y);
                                 free(y);
                                 set_free(x);
                         }
                 }
         }
 
-        strv_free(u->requires_mounts_for);
-        u->requires_mounts_for = NULL;
+        strv_free(u->needs_mounts_for[severity]);
+        u->needs_mounts_for[severity] = NULL;
 }
 
 static void unit_done(Unit *u) {
@@ -463,7 +464,8 @@ void unit_free(Unit *u) {
 
         unit_done(u);
 
-        unit_free_requires_mounts_for(u);
+        unit_free_needs_mounts_for(u, UNIT_REQUIRES);
+        unit_free_needs_mounts_for(u, UNIT_WANTS);
 
         SET_FOREACH(t, u->names, i)
                 hashmap_remove_value(u->manager->units, t, u);
@@ -712,13 +714,13 @@ int unit_add_exec_dependencies(Unit *u, ExecContext *c) {
         assert(c);
 
         if (c->working_directory) {
-                r = unit_require_mounts_for(u, c->working_directory);
+                r = unit_needs_mounts_for(u, c->working_directory, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
 
         if (c->root_directory) {
-                r = unit_require_mounts_for(u, c->root_directory);
+                r = unit_needs_mounts_for(u, c->root_directory, UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
@@ -727,11 +729,11 @@ int unit_add_exec_dependencies(Unit *u, ExecContext *c) {
                 return 0;
 
         if (c->private_tmp) {
-                r = unit_require_mounts_for(u, "/tmp");
+                r = unit_needs_mounts_for(u, "/tmp", UNIT_REQUIRES);
                 if (r < 0)
                         return r;
 
-                r = unit_require_mounts_for(u, "/var/tmp");
+                r = unit_needs_mounts_for(u, "/var/tmp", UNIT_REQUIRES);
                 if (r < 0)
                         return r;
         }
@@ -875,11 +877,21 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
                         fprintf(f, "%s\t%s: %s\n", prefix, unit_dependency_to_string(d), other->id);
         }
 
-        if (!strv_isempty(u->requires_mounts_for)) {
+        if (!strv_isempty(u->needs_mounts_for[0])) {
                 fprintf(f,
                         "%s\tRequiresMountsFor:", prefix);
 
-                STRV_FOREACH(j, u->requires_mounts_for)
+                STRV_FOREACH(j, u->needs_mounts_for[0])
+                        fprintf(f, " %s", *j);
+
+                fputs("\n", f);
+        }
+
+        if (!strv_isempty(u->needs_mounts_for[1])) {
+                fprintf(f,
+                        "%s\tWantsMountsFor:", prefix);
+
+                STRV_FOREACH(j, u->needs_mounts_for[1])
                         fprintf(f, " %s", *j);
 
                 fputs("\n", f);
@@ -1036,37 +1048,41 @@ static int unit_add_slice_dependencies(Unit *u) {
 static int unit_add_mount_dependencies(Unit *u) {
         char **i;
         int r;
+        bool strong = false;
 
         assert(u);
 
-        STRV_FOREACH(i, u->requires_mounts_for) {
-                char prefix[strlen(*i) + 1];
-
-                PATH_FOREACH_PREFIX_MORE(prefix, *i) {
-                        Unit *m;
+        do {
+                STRV_FOREACH(i, u->needs_mounts_for[!strong]) {
+                        char prefix[strlen(*i) + 1];
 
-                        r = manager_get_unit_by_path(u->manager, prefix, ".mount", &m);
-                        if (r < 0)
-                                return r;
-                        if (r == 0)
-                                continue;
-                        if (m == u)
-                                continue;
+                        PATH_FOREACH_PREFIX_MORE(prefix, *i) {
+                                Unit *m;
 
-                        if (m->load_state != UNIT_LOADED)
-                                continue;
+                                r = manager_get_unit_by_path(u->manager, prefix, ".mount", &m);
+                                if (r < 0)
+                                        return r;
+                                if (r == 0)
+                                        continue;
+                                if (m == u)
+                                        continue;
 
-                        r = unit_add_dependency(u, UNIT_AFTER, m, true);
-                        if (r < 0)
-                                return r;
+                                if (m->load_state != UNIT_LOADED)
+                                        continue;
 
-                        if (m->fragment_path) {
-                                r = unit_add_dependency(u, UNIT_REQUIRES, m, true);
+                                r = unit_add_dependency(u, UNIT_AFTER, m, true);
                                 if (r < 0)
                                         return r;
+
+                                if (m->fragment_path) {
+                                        r = unit_add_dependency(u, strong ? UNIT_REQUIRES : UNIT_WANTS, m, true);
+                                        if (r < 0)
+                                                return r;
+                                }
                         }
                 }
-        }
+                strong = !strong;
+        } while (strong);
 
         return 0;
 }
@@ -3213,14 +3229,15 @@ int unit_kill_context(
         return wait_for_exit;
 }
 
-int unit_require_mounts_for(Unit *u, const char *path) {
+int unit_needs_mounts_for(Unit *u, const char *path, UnitDependency d) {
         char prefix[strlen(path) + 1], *p;
         int r;
+        bool severity = (d != UNIT_REQUIRES);
 
         assert(u);
         assert(path);
 
-        /* Registers a unit for requiring a certain path and all its
+        /* Registers a unit for the need of a certain path and all its
          * prefixes. We keep a simple array of these paths in the
          * unit, since its usually short. However, we build a prefix
          * table for all possible prefixes so that new appearing mount
@@ -3241,25 +3258,25 @@ int unit_require_mounts_for(Unit *u, const char *path) {
                 return -EPERM;
         }
 
-        if (strv_contains(u->requires_mounts_for, p)) {
+        if (strv_contains(u->needs_mounts_for[severity], p)) {
                 free(p);
                 return 0;
         }
 
-        r = strv_consume(&u->requires_mounts_for, p);
+        r = strv_consume(&u->needs_mounts_for[severity], p);
         if (r < 0)
                 return r;
 
         PATH_FOREACH_PREFIX_MORE(prefix, p) {
                 Set *x;
 
-                x = hashmap_get(u->manager->units_requiring_mounts_for, prefix);
+                x = hashmap_get(u->manager->units_need_mounts_for[severity], prefix);
                 if (!x) {
                         char *q;
 
-                        if (!u->manager->units_requiring_mounts_for) {
-                                u->manager->units_requiring_mounts_for = hashmap_new(string_hash_func, string_compare_func);
-                                if (!u->manager->units_requiring_mounts_for)
+                        if (!u->manager->units_need_mounts_for[severity]) {
+                                u->manager->units_need_mounts_for[severity] = hashmap_new(string_hash_func, string_compare_func);
+                                if (!u->manager->units_need_mounts_for[severity])
                                         return -ENOMEM;
                         }
 
@@ -3273,7 +3290,7 @@ int unit_require_mounts_for(Unit *u, const char *path) {
                                 return -ENOMEM;
                         }
 
-                        r = hashmap_put(u->manager->units_requiring_mounts_for, q, x);
+                        r = hashmap_put(u->manager->units_need_mounts_for[severity], q, x);
                         if (r < 0) {
                                 free(q);
                                 set_free(x);
diff --git a/src/core/unit.h b/src/core/unit.h
index 3e61067..2947109 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -142,7 +142,7 @@ struct Unit {
         Set *names;
         Set *dependencies[_UNIT_DEPENDENCY_MAX];
 
-        char **requires_mounts_for;
+        char **needs_mounts_for[2]; /* [0] - required, [1] - wanted */
 
         char *description;
         char **documentation;
@@ -186,9 +186,6 @@ struct Unit {
         /* Per type list */
         LIST_FIELDS(Unit, units_by_type);
 
-        /* All units which have requires_mounts_for set */
-        LIST_FIELDS(Unit, has_requires_mounts_for);
-
         /* Load queue */
         LIST_FIELDS(Unit, load_queue);
 
@@ -624,7 +621,7 @@ int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid
 
 int unit_make_transient(Unit *u);
 
-int unit_require_mounts_for(Unit *u, const char *path);
+int unit_needs_mounts_for(Unit *u, const char *path, UnitDependency d);
 
 const char *unit_active_state_to_string(UnitActiveState i) _const_;
 UnitActiveState unit_active_state_from_string(const char *s) _pure_;
diff --git a/src/cryptsetup/cryptsetup-generator.c b/src/cryptsetup/cryptsetup-generator.c
index f4eeb2a..ce7ae92 100644
--- a/src/cryptsetup/cryptsetup-generator.c
+++ b/src/cryptsetup/cryptsetup-generator.c
@@ -153,7 +153,8 @@ static int create_disk(
 
                                 fprintf(f, "After=%1$s\nRequires=%1$s\n", dd);
                         } else
-                                fprintf(f, "RequiresMountsFor=%s\n", password);
+                                /* Do not use 'RequiresMountsFor=' here to allow fallback to password in case the key device is not available */
+                                fprintf(f, "WantsMountsFor=%s\n", password);
                 }
         }
 
-- 
1.9.0



More information about the systemd-devel mailing list