src/interfaces/hostnamed/hostnamed.c

   1 /*
   2  * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc>
   3  *
   4  * Permission to use, copy, modify, and distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <unistd.h>
  18 #include <limits.h>
  19
  20 #include <glib.h>
  21 #include <gio/gio.h>
  22
  23 #include "hostnamed.h"
  24 #include "hostnamed-gen.c"
  25
  26 GPtrArray *hostnamed_freeable;
  27 GDBusNodeInfo *spect_data;
  28 Hostname1 *hostnamed_interf;
  29
  30 static gboolean
  31 on_handle_set_hostname(Hostname1 *hn1_passed_interf,
  32                        GDBusMethodInvocation *invoc,
  33                        const gchar *greet,
  34                        gpointer data) {
  35     return FALSE;
  36 }
  37
  38 static gboolean
  39 on_handle_set_static_hostname(Hostname1 *hn1_passed_interf,
  40                               GDBusMethodInvocation *invoc,
  41                               const gchar *greet,
  42                               gpointer data) {
  43     return FALSE;
  44 }
  45
  46 static gboolean
  47 on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf,
  48                               GDBusMethodInvocation *invoc,
  49                               const gchar *greet,
  50                               gpointer data) {
  51     return FALSE;
  52 }
  53
  54 static gboolean
  55 on_handle_set_chassis(Hostname1 *hn1_passed_interf,
  56                       GDBusMethodInvocation *invoc,
  57                       const gchar *greet,
  58                       gpointer data) {
  59     return FALSE;
  60 }
  61
  62 static gboolean
  63 on_handle_set_icon_name(Hostname1 *hn1_passed_interf,
  64                         GDBusMethodInvocation *invoc,
  65                         const gchar *greet,
  66                         gpointer data) {
  67     return FALSE;
  68 }
  69
  70 /* end method/property/signal code, begin bus/name handlers */
  71
  72 static void on_bus_acquired(GDBusConnection *conn,
  73                             const gchar *name,
  74                             gpointer user_data) {
  75
  76     g_print("got bus, name: %s\n", name);
  77
  78 }
  79
  80 static void on_name_acquired(GDBusConnection *conn,
  81                              const gchar *name,
  82                              gpointer user_data) {
  83
  84     g_print("got '%s' on system bus\n", name);
  85
  86     hostnamed_interf = hostname1_skeleton_new();
  87
  88     /* attach function pointers to generated vfunc table struct */
  89     g_signal_connect(hostnamed_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);
  90     g_signal_connect(hostnamed_interf, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname), NULL);
  91     g_signal_connect(hostnamed_interf, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname), NULL);
  92     g_signal_connect(hostnamed_interf, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis), NULL);
  93     g_signal_connect(hostnamed_interf, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name), NULL);
  94
  95     if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf),
  96                                                                    conn,
  97                                                                    "/org/freedesktop/hostname1",
  98                                                                    NULL)) {
  99
 100         g_printf("failed to export hostname1's interface on system bus!");
 101     }
 102
 103 }
 104
 105 static void on_name_lost(GDBusConnection *conn,
 106                          const gchar *name,
 107                          gpointer user_data) {
 108
 109     g_print("lost name %s, exiting...", name);
 110
 111     hostnamed_mem_clean();
 112     g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf));
 113
 114     /* TODO exit through g_main_loop properly... */
 115 }
 116
 117 /* safe call to try and start hostnamed */
 118 GError *hostnamed_init() {
 119
 120     guint bus_descriptor;
 121     GError *err = NULL;
 122     gchar **hostnamed_ispect_xml;
 123     gchar  *hostnamed_joined_xml;
 124
 125     hostnamed_freeable = g_ptr_array_new();
 126     hostnamed_ispect_xml = g_malloc(3000);
 127
 128     g_file_get_contents("conf/hostnamed-ispect.xml", hostnamed_ispect_xml, NULL, NULL);
 129     hostnamed_joined_xml = g_strjoinv("\n", hostnamed_ispect_xml);
 130     spect_data = g_dbus_node_info_new_for_xml(hostnamed_joined_xml, NULL);
 131
 132     g_free(hostnamed_ispect_xml);
 133     g_ptr_array_add(hostnamed_freeable, hostnamed_joined_xml);
 134
 135     bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
 136                                     "org.freedesktop.hostname1",
 137                                     G_BUS_NAME_OWNER_FLAGS_NONE,
 138                                     on_bus_acquired,
 139                                     on_name_acquired,
 140                                     on_name_lost,
 141                                     NULL,
 142                                     NULL);
 143
 144     /* TODO: malloc and return reference as if a main() closed */
 145     return err;
 146 }
 147
 148 /* free()'s */
 149 void hostnamed_mem_clean() {
 150
 151     g_ptr_array_foreach(hostnamed_freeable, (GFunc) g_free, NULL);
 152 }
 153
 154 /* TODO figure out DMI variables on obsd */
 155 /*static gchar *guess_icon_name() {
 156
 157     gchar *filebuf = NULL;
 158     gchar *ret = NULL;
 159
 160     #if defined(__i386__) || defined(__x86_64__)
 161
 162        Taken with a few minor changes from systemd's hostnamed.c,
 163        copyright 2011 Lennart Poettering.
 164
 165        See the SMBIOS Specification 2.7.1 section 7.4.1 for
 166        details about the values listed here:
 167
 168        http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf
 169
 170
 171     if (g_file_get_contents ("/sys/class/dmi/id/chassis_type", &filebuf, NULL, NULL)) {
 172         switch (g_ascii_strtoull (filebuf, NULL, 10)) {
 173         case 0x3:
 174         case 0x4:
 175         case 0x5:
 176         case 0x6:
 177         case 0x7:
 178             ret = g_strdup ("computer-desktop");
 179             goto out;
 180         case 0x9:
 181         case 0xA:
 182         case 0xE:
 183             ret = g_strdup ("computer-laptop");
 184             goto out;
 185         case 0x11:
 186         case 0x17:
 187         case 0x1C:
 188         case 0x1D:
 189             ret = g_strdup ("computer-server");
 190             goto out;
 191         }
 192     }
 193     #endif
 194     ret = g_strdup ("computer");
 195   out:
 196     g_free (filebuf);
 197     return ret;
 198 }*/