--- /dev/null
+/*
+ *
+ * Connection Manager
+ *
+ * Copyright (C) 2007-2009 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
+ *
+ */
+
+#ifndef __CONNMAN_DHCP_H
+#define __CONNMAN_DHCP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * SECTION:dhcp
+ * @title: DHCP premitives
+ * @short_description: Functions for handling DHCP
+ */
+
+enum connman_dhcp_state {
+ CONNMAN_DHCP_STATE_UNKNOWN = 0,
+ CONNMAN_DHCP_STATE_IDLE = 1,
+ CONNMAN_DHCP_STATE_BOUND = 2,
+ CONNMAN_DHCP_STATE_RENEW = 3,
+ CONNMAN_DHCP_STATE_FAIL = 4,
+};
+
+struct connman_dhcp;
+
+struct connman_dhcp *connman_dhcp_ref(struct connman_dhcp *dhcp);
+void connman_dhcp_unref(struct connman_dhcp *dhcp);
+
+char *connman_dhcp_get_interface(struct connman_dhcp *dhcp);
+
+void connman_dhcp_bound(struct connman_dhcp *dhcp);
+
+struct connman_dhcp_driver {
+ const char *name;
+ int priority;
+ int (*request) (struct connman_dhcp *dhcp);
+ int (*release) (struct connman_dhcp *dhcp);
+ int (*renew) (struct connman_dhcp *dhcp);
+};
+
+int connman_dhcp_driver_register(struct connman_dhcp_driver *driver);
+void connman_dhcp_driver_unregister(struct connman_dhcp_driver *driver);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CONNMAN_DHCP_H */
#include <config.h>
#endif
+#include <glib.h>
+
#include "connman.h"
+struct connman_dhcp {
+ gint refcount;
+ int index;
+ enum connman_dhcp_state state;
+
+ struct connman_element *element;
+
+ struct connman_dhcp_driver *driver;
+ void *driver_data;
+};
+
+/**
+ * connman_dhcp_ref:
+ * @dhcp: DHCP structure
+ *
+ * Increase reference counter of DHCP
+ */
+struct connman_dhcp *connman_dhcp_ref(struct connman_dhcp *dhcp)
+{
+ g_atomic_int_inc(&dhcp->refcount);
+
+ return dhcp;
+}
+
+/**
+ * connman_dhcp_unref:
+ * @dhcp: DHCP structure
+ *
+ * Decrease reference counter of DHCP
+ */
+void connman_dhcp_unref(struct connman_dhcp *dhcp)
+{
+ if (g_atomic_int_dec_and_test(&dhcp->refcount) == TRUE)
+ g_free(dhcp);
+}
+
+/**
+ * connman_dhcp_get_interface:
+ * @dhcp: DHCP structure
+ *
+ * Get network interface of DHCP
+ */
+char *connman_dhcp_get_interface(struct connman_dhcp *dhcp)
+{
+ return connman_inet_ifname(dhcp->index);
+}
+
+/**
+ * connman_dhcp_bound:
+ * @dhcp: DHCP structure
+ *
+ * Report successful bound of the interface
+ */
+void connman_dhcp_bound(struct connman_dhcp *dhcp)
+{
+ DBG("dhcp %p", dhcp);
+}
+
+static GSList *driver_list = NULL;
+
+static gint compare_priority(gconstpointer a, gconstpointer b)
+{
+ const struct connman_dhcp_driver *driver1 = a;
+ const struct connman_dhcp_driver *driver2 = b;
+
+ return driver2->priority - driver1->priority;
+}
+
+/**
+ * connman_dhcp_driver_register:
+ * @driver: DHCP driver definition
+ *
+ * Register a new DHCP driver
+ *
+ * Returns: %0 on success
+ */
+int connman_dhcp_driver_register(struct connman_dhcp_driver *driver)
+{
+ DBG("driver %p name %s", driver, driver->name);
+
+ driver_list = g_slist_insert_sorted(driver_list, driver,
+ compare_priority);
+
+ return 0;
+}
+
+/**
+ * connman_dhcp_driver_unregister:
+ * @driver: DHCP driver definition
+ *
+ * Remove a previously registered DHCP driver
+ */
+void connman_dhcp_driver_unregister(struct connman_dhcp_driver *driver)
+{
+ DBG("driver %p name %s", driver, driver->name);
+
+ driver_list = g_slist_remove(driver_list, driver);
+}
+
static int dhcp_probe(struct connman_element *element)
{
+ struct connman_dhcp *dhcp;
+ GSList *list;
+
DBG("element %p name %s", element, element->name);
+ dhcp = g_try_new0(struct connman_dhcp, 1);
+ if (dhcp == NULL)
+ return -ENOMEM;
+
+ dhcp->refcount = 1;
+ dhcp->index = element->index;
+ dhcp->state = CONNMAN_DHCP_STATE_IDLE;
+
+ dhcp->element = element;
+
+ connman_element_set_data(element, dhcp);
+
+ for (list = driver_list; list; list = list->next) {
+ struct connman_dhcp_driver *driver = list->data;
+
+ DBG("driver %p name %s", driver, driver->name);
+
+ if (driver->request(dhcp) == 0) {
+ dhcp->driver = driver;
+ break;
+ }
+ }
+
+ if (dhcp->driver == NULL) {
+ connman_dhcp_unref(dhcp);
+ return -ENOENT;
+ }
+
return 0;
}
static void dhcp_remove(struct connman_element *element)
{
+ struct connman_dhcp *dhcp = connman_element_get_data(element);
+
DBG("element %p name %s", element, element->name);
+
+ connman_element_set_data(element, NULL);
+
+ if (dhcp->driver) {
+ dhcp->driver->release(dhcp);
+ dhcp->driver = NULL;
+ }
+
+ connman_dhcp_unref(dhcp);
}
static struct connman_driver dhcp_driver = {