dbus-mount.c

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <errno.h>
  23
  24 #include "dbus-unit.h"
  25 #include "dbus-mount.h"
  26 #include "dbus-execute.h"
  27
  28 static const char introspection[] =
  29         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
  30         "<node>"
  31         BUS_UNIT_INTERFACE
  32         BUS_PROPERTIES_INTERFACE
  33         " <interface name=\"org.freedesktop.systemd1.Mount\">"
  34         "  <property name=\"Where\" type=\"s\" access=\"read\"/>"
  35         "  <property name=\"What\" type=\"s\" access=\"read\"/>"
  36         "  <property name=\"Options\" type=\"s\" access=\"read\"/>"
  37         "  <property name=\"Type\" type=\"s\" access=\"read\"/>"
  38         "  <property name=\"TimeoutUSec\" type=\"t\" access=\"read\"/>"
  39         BUS_EXEC_CONTEXT_INTERFACE
  40         "  <property name=\"KillMode\" type=\"s\" access=\"read\"/>"
  41         "  <property name=\"ControlPID\" type=\"u\" access=\"read\"/>"
  42         " </interface>"
  43         BUS_INTROSPECTABLE_INTERFACE
  44         "</node>";
  45
  46 static int bus_mount_append_what(Manager *n, DBusMessageIter *i, const char *property, void *data) {
  47         Mount *m = data;
  48         const char *d;
  49
  50         assert(n);
  51         assert(i);
  52         assert(property);
  53         assert(m);
  54
  55         if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.what)
  56                 d = m->parameters_proc_self_mountinfo.what;
  57         else if (m->from_fragment && m->parameters_fragment.what)
  58                 d = m->parameters_fragment.what;
  59         else if (m->from_etc_fstab && m->parameters_etc_fstab.what)
  60                 d = m->parameters_etc_fstab.what;
  61         else
  62                 d = "";
  63
  64         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &d))
  65                 return -ENOMEM;
  66
  67         return 0;
  68 }
  69
  70 static int bus_mount_append_options(Manager *n, DBusMessageIter *i, const char *property, void *data) {
  71         Mount *m = data;
  72         const char *d;
  73
  74         assert(n);
  75         assert(i);
  76         assert(property);
  77         assert(m);
  78
  79         if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.options)
  80                 d = m->parameters_proc_self_mountinfo.options;
  81         else if (m->from_fragment && m->parameters_fragment.options)
  82                 d = m->parameters_fragment.options;
  83         else if (m->from_etc_fstab && m->parameters_etc_fstab.options)
  84                 d = m->parameters_etc_fstab.options;
  85         else
  86                 d = "";
  87
  88         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &d))
  89                 return -ENOMEM;
  90
  91         return 0;
  92 }
  93
  94 static int bus_mount_append_type(Manager *n, DBusMessageIter *i, const char *property, void *data) {
  95         Mount *m = data;
  96         const char *d;
  97
  98         assert(n);
  99         assert(i);
 100         assert(property);
 101         assert(m);
 102
 103         if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.fstype)
 104                 d = m->parameters_proc_self_mountinfo.fstype;
 105         else if (m->from_fragment && m->parameters_fragment.fstype)
 106                 d = m->parameters_fragment.fstype;
 107         else if (m->from_etc_fstab && m->parameters_etc_fstab.fstype)
 108                 d = m->parameters_etc_fstab.fstype;
 109         else
 110                 d = "";
 111
 112         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &d))
 113                 return -ENOMEM;
 114
 115         return 0;
 116 }
 117
 118 DBusHandlerResult bus_mount_message_handler(Unit *u, DBusMessage *message) {
 119         const BusProperty properties[] = {
 120                 BUS_UNIT_PROPERTIES,
 121                 { "org.freedesktop.systemd1.Mount", "Where",       bus_property_append_string, "s", u->mount.where         },
 122                 { "org.freedesktop.systemd1.Mount", "What",        bus_mount_append_what,      "s", u                      },
 123                 { "org.freedesktop.systemd1.Mount", "Options",     bus_mount_append_options,   "s", u                      },
 124                 { "org.freedesktop.systemd1.Mount", "Type",        bus_mount_append_type,      "s", u                      },
 125                 { "org.freedesktop.systemd1.Mount", "TimeoutUSec", bus_property_append_usec,   "t", &u->mount.timeout_usec },
 126                 /* ExecCommand */
 127                 BUS_EXEC_CONTEXT_PROPERTIES("org.freedesktop.systemd1.Mount", u->mount.exec_context),
 128                 { "org.freedesktop.systemd1.Mount", "KillMode",    bus_unit_append_kill_mode,  "s", &u->mount.kill_mode    },
 129                 { "org.freedesktop.systemd1.Mount", "ControlPID",  bus_property_append_pid,    "u", &u->mount.control_pid  },
 130                 { NULL, NULL, NULL, NULL, NULL }
 131         };
 132
 133         return bus_default_message_handler(u->meta.manager, message, introspection, properties);
 134 }