dun_gw: Add DUN server plugin for oFono

DUN server is probed when modem state changes to online. It registers
DUN record to Bluetooth adapter and wait for incoming DUN connection.

Based on a patch from Zhenhua Zhang <zhenhua.zhang@intel.com>

diff --git a/Makefile.am b/Makefile.am
index 91ad448..669ef53 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -327,6 +327,9 @@ builtin_sources += plugins/hfp.c plugins/bluetooth.h
 builtin_modules += hfp_ag
 builtin_sources += plugins/hfp_ag.c plugins/bluetooth.h
 
+builtin_modules += dun_gw
+builtin_sources += plugins/dun_gw.c plugins/bluetooth.h
+
 builtin_sources += $(btio_sources)
 builtin_cflags += @BLUEZ_CFLAGS@
 builtin_libadd += @BLUEZ_LIBS@

diff --git a/plugins/dun_gw.c b/plugins/dun_gw.c
new file mode 100644 (file)
index 0000000..2b6979a
--- /dev/null
+++ b/plugins/dun_gw.c
@@ -0,0 +1,164 @@
+/*
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2010  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <glib.h>
+#include <ofono.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono/plugin.h>
+#include <ofono/log.h>
+#include <ofono/modem.h>
+#include <gdbus.h>
+
+#include "bluetooth.h"
+
+#define DUN_GW_CHANNEL 1
+
+static struct server *server;
+static guint modemwatch_id;
+static GList *modems;
+
+static const gchar *dun_record = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>  \
+<record>                                                                       \
+  <attribute id=\"0x0001\">                                                    \
+    <sequence>                                                                 \
+      <uuid value=\"0x1103\"/>                                                 \
+    </sequence>                                                                \
+  </attribute>                                                                 \
+                                                                               \
+  <attribute id=\"0x0004\">                                                    \
+    <sequence>                                                                 \
+      <sequence>                                                               \
+        <uuid value=\"0x0100\"/>                                               \
+      </sequence>                                                              \
+      <sequence>                                                               \
+        <uuid value=\"0x0003\"/>                                               \
+        <uint8 value=\"1\" name=\"channel\"/>                                 \
+      </sequence>                                                              \
+    </sequence>                                                                \
+  </attribute>                                                                 \
+                                                                               \
+  <attribute id=\"0x0009\">                                                    \
+    <sequence>                                                                 \
+      <sequence>                                                               \
+        <uuid value=\"0x1103\"/>                                               \
+        <uint16 value=\"0x0100\" name=\"version\"/>                            \
+      </sequence>                                                              \
+    </sequence>                                                                \
+  </attribute>                                                                 \
+                                                                               \
+  <attribute id=\"0x0100\">                                                    \
+    <text value=\"Dial-up Networking\" name=\"name\"/>                         \
+  </attribute>                                                                 \
+</record>";
+
+static void dun_gw_connect_cb(GIOChannel *io, GError *err, gpointer user_data)
+{
+       struct ofono_emulator *em = user_data;
+       struct ofono_modem *modem;
+       int fd;
+
+       DBG("");
+
+       if (err) {
+               DBG("%s", err->message);
+               g_io_channel_shutdown(io, TRUE, NULL);
+               return;
+       }
+
+       /* Pick the first powered modem */
+       modem = modems->data;
+       DBG("Picked modem %p for emulator", modem);
+
+       em = ofono_emulator_create(modem, OFONO_EMULATOR_TYPE_DUN);
+       if (em == NULL) {
+               g_io_channel_shutdown(io, TRUE, NULL);
+               return;
+       }
+
+       fd = g_io_channel_unix_get_fd(io);
+       g_io_channel_set_close_on_unref(io, TRUE);
+
+       ofono_emulator_register(em, fd);
+}
+
+static void gprs_watch(struct ofono_atom *atom,
+                               enum ofono_atom_watch_condition cond,
+                               void *data)
+{
+       struct ofono_modem *modem = data;
+
+       if (cond == OFONO_ATOM_WATCH_CONDITION_REGISTERED) {
+               modems = g_list_append(modems, modem);
+
+               if (modems->next == NULL)
+                       server = bluetooth_register_server(DUN_GW_CHANNEL,
+                                       dun_record,
+                                       dun_gw_connect_cb,
+                                       NULL);
+       } else {
+               modems = g_list_remove(modems, modem);
+               if (modems == NULL &&  server != NULL) {
+                       bluetooth_unregister_server(server);
+                       server = NULL;
+               }
+       }
+}
+
+static void modem_watch(struct ofono_modem *modem, gboolean added, void *user)
+{
+       DBG("modem: %p, added: %d", modem, added);
+
+       if (added == FALSE)
+               return;
+
+       __ofono_modem_add_atom_watch(modem, OFONO_ATOM_TYPE_GPRS,
+                                               gprs_watch, modem, NULL);
+}
+
+static void call_modemwatch(struct ofono_modem *modem, void *user)
+{
+       modem_watch(modem, TRUE, user);
+}
+
+static int dun_gw_init(void)
+{
+       DBG("");
+
+       modemwatch_id = __ofono_modemwatch_add(modem_watch, NULL, NULL);
+
+       __ofono_modem_foreach(call_modemwatch, NULL);
+
+       return 0;
+}
+
+static void dun_gw_exit(void)
+{
+       __ofono_modemwatch_remove(modemwatch_id);
+}
+
+OFONO_PLUGIN_DEFINE(dun_gw, "Dial-up Networking Profile Plugins", VERSION,
+                       OFONO_PLUGIN_PRIORITY_DEFAULT, dun_gw_init, dun_gw_exit)