tree-wide: drop license boilerplate

[thirdparty/systemd.git] / src / core / automount.c

diff --git a/src/core/automount.c b/src/core/automount.c
index 9b0d1ca429b9c6eafb72c40a95b091969d03d75f..c49b523eb2d045825a417231a4bd3bd6e636ede1 100644 (file)
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -1,20 +1,8 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
@@ -130,7 +118,20 @@ static void automount_done(Unit *u) {
         a->expire_event_source = sd_event_source_unref(a->expire_event_source);
 }
 
-static int automount_add_mount_links(Automount *a) {
+static int automount_add_trigger_dependencies(Automount *a) {
+        Unit *x;
+        int r;
+
+        assert(a);
+
+        r = unit_load_related_unit(UNIT(a), ".mount", &x);
+        if (r < 0)
+                return r;
+
+        return unit_add_two_dependencies(UNIT(a), UNIT_BEFORE, UNIT_TRIGGERS, x, true, UNIT_DEPENDENCY_IMPLICIT);
+}
+
+static int automount_add_mount_dependencies(Automount *a) {
         _cleanup_free_ char *parent = NULL;
 
         assert(a);
@@ -139,7 +140,7 @@ static int automount_add_mount_links(Automount *a) {
         if (!parent)
                 return -ENOMEM;
 
-        return unit_require_mounts_for(UNIT(a), parent);
+        return unit_require_mounts_for(UNIT(a), parent, UNIT_DEPENDENCY_IMPLICIT);
 }
 
 static int automount_add_default_dependencies(Automount *a) {
@@ -153,7 +154,7 @@ static int automount_add_default_dependencies(Automount *a) {
         if (!MANAGER_IS_SYSTEM(UNIT(a)->manager))
                 return 0;
 
-        r = unit_add_two_dependencies_by_name(UNIT(a), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
+        r = unit_add_two_dependencies_by_name(UNIT(a), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true, UNIT_DEPENDENCY_DEFAULT);
         if (r < 0)
                 return r;
 
@@ -210,26 +211,20 @@ static int automount_load(Unit *u) {
         assert(u->load_state == UNIT_STUB);
 
         /* Load a .automount file */
-        r = unit_load_fragment_and_dropin_optional(u);
+        r = unit_load_fragment_and_dropin(u);
         if (r < 0)
                 return r;
 
         if (u->load_state == UNIT_LOADED) {
-                Unit *x;
-
                 r = automount_set_where(a);
                 if (r < 0)
                         return r;
 
-                r = unit_load_related_unit(u, ".mount", &x);
+                r = automount_add_trigger_dependencies(a);
                 if (r < 0)
                         return r;
 
-                r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, x, true);
-                if (r < 0)
-                        return r;
-
-                r = automount_add_mount_links(a);
+                r = automount_add_mount_dependencies(a);
                 if (r < 0)
                         return r;
 
@@ -338,7 +333,7 @@ static int open_dev_autofs(Manager *m) {
         if (m->dev_autofs_fd >= 0)
                 return m->dev_autofs_fd;
 
-        label_fix("/dev/autofs", false, false);
+        (void) label_fix("/dev/autofs", 0);
 
         m->dev_autofs_fd = open("/dev/autofs", O_CLOEXEC|O_RDONLY);
         if (m->dev_autofs_fd < 0)
@@ -421,7 +416,7 @@ static int autofs_set_timeout(int dev_autofs_fd, int ioctl_fd, usec_t usec) {
                 param.timeout.timeout = 0;
         else
                 /* Convert to seconds, rounding up. */
-                param.timeout.timeout = (usec + USEC_PER_SEC - 1) / USEC_PER_SEC;
+                param.timeout.timeout = DIV_ROUND_UP(usec, USEC_PER_SEC);
 
         if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_TIMEOUT, &param) < 0)
                 return -errno;
@@ -557,8 +552,8 @@ static void automount_trigger_notify(Unit *u, Unit *other) {
 static void automount_enter_waiting(Automount *a) {
         _cleanup_close_ int ioctl_fd = -1;
         int p[2] = { -1, -1 };
-        char name[sizeof("systemd-")-1 + DECIMAL_STR_MAX(pid_t) + 1];
-        char options[sizeof("fd=,pgrp=,minproto=5,maxproto=5,direct")-1
+        char name[STRLEN("systemd-") + DECIMAL_STR_MAX(pid_t) + 1];
+        char options[STRLEN("fd=,pgrp=,minproto=5,maxproto=5,direct")
                      + DECIMAL_STR_MAX(int) + DECIMAL_STR_MAX(gid_t) + 1];
         bool mounted = false;
         int r, dev_autofs_fd;
@@ -570,7 +565,7 @@ static void automount_enter_waiting(Automount *a) {
 
         set_clear(a->tokens);
 
-        r = unit_fail_if_symlink(UNIT(a), a->where);
+        r = unit_fail_if_noncanonical(UNIT(a), a->where);
         if (r < 0)
                 goto fail;
 
@@ -957,13 +952,16 @@ static const char *automount_sub_state_to_string(Unit *u) {
         return automount_state_to_string(AUTOMOUNT(u)->state);
 }
 
-static bool automount_check_gc(Unit *u) {
+static bool automount_may_gc(Unit *u) {
+        Unit *t;
+
         assert(u);
 
-        if (!UNIT_TRIGGER(u))
-                return false;
+        t = UNIT_TRIGGER(u);
+        if (!t)
+                return true;
 
-        return UNIT_VTABLE(UNIT_TRIGGER(u))->check_gc(UNIT_TRIGGER(u));
+        return UNIT_VTABLE(t)->may_gc(t);
 }
 
 static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, void *userdata) {
@@ -1116,7 +1114,7 @@ const UnitVTable automount_vtable = {
         .active_state = automount_active_state,
         .sub_state_to_string = automount_sub_state_to_string,
 
-        .check_gc = automount_check_gc,
+        .may_gc = automount_may_gc,
 
         .trigger_notify = automount_trigger_notify,