*
* Connection Manager
*
- * Copyright (C) 2007 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2012 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
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
-#include <arpa/inet.h>
+#include <connman/ipconfig.h>
+
+#include <gdhcp/gdhcp.h>
#include <glib.h>
#include "connman.h"
-static GSList *drivers = NULL;
+struct connman_dhcp {
+ struct connman_network *network;
+ dhcp_cb callback;
+
+ char **nameservers;
+ char **timeservers;
+ char *pac;
+
+ GDHCPClient *dhcp_client;
+};
-int connman_dhcp_register(struct connman_dhcp_driver *driver)
+static GHashTable *network_table;
+
+static void dhcp_free(struct connman_dhcp *dhcp)
{
- DBG("driver %p", driver);
+ g_strfreev(dhcp->nameservers);
+ g_strfreev(dhcp->timeservers);
+ g_free(dhcp->pac);
+
+ dhcp->nameservers = NULL;
+ dhcp->timeservers = NULL;
+ dhcp->pac = NULL;
+}
- drivers = g_slist_append(drivers, driver);
+/**
+ * dhcp_invalidate: Invalidate an existing DHCP lease
+ * @dhcp: pointer to the DHCP lease to invalidate.
+ * @callback: flag indicating whether or not to invoke the client callback
+ * if present.
+ *
+ * Invalidates an existing DHCP lease, optionally invoking the client
+ * callback. The caller may wish to avoid the client callback invocation
+ * when the invocation of that callback might otherwise unnecessarily upset
+ * service state due to the IP configuration change implied by this
+ * invalidation.
+ */
+static void dhcp_invalidate(struct connman_dhcp *dhcp, connman_bool_t callback)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig;
+ int i;
- return 0;
+ DBG("dhcp %p callback %u", dhcp, callback);
+
+ if (dhcp == NULL)
+ return;
+
+ service = __connman_service_lookup_from_network(dhcp->network);
+ if (service == NULL)
+ goto out;
+
+ ipconfig = __connman_service_get_ip4config(service);
+ if (ipconfig == NULL)
+ goto out;
+
+ __connman_6to4_remove(ipconfig);
+
+ __connman_service_set_domainname(service, NULL);
+ __connman_service_set_pac(service, NULL);
+
+ if (dhcp->timeservers != NULL) {
+ for (i = 0; dhcp->timeservers[i] != NULL; i++) {
+ __connman_service_timeserver_remove(service,
+ dhcp->timeservers[i]);
+ }
+ }
+
+ if (dhcp->nameservers != NULL) {
+ for (i = 0; dhcp->nameservers[i] != NULL; i++) {
+ __connman_service_nameserver_remove(service,
+ dhcp->nameservers[i], FALSE);
+ }
+ }
+
+ __connman_ipconfig_set_dhcp_address(ipconfig,
+ __connman_ipconfig_get_local(ipconfig));
+ DBG("last address %s", __connman_ipconfig_get_dhcp_address(ipconfig));
+
+ __connman_ipconfig_address_remove(ipconfig);
+
+ __connman_ipconfig_set_local(ipconfig, NULL);
+ __connman_ipconfig_set_broadcast(ipconfig, NULL);
+ __connman_ipconfig_set_gateway(ipconfig, NULL);
+ __connman_ipconfig_set_prefixlen(ipconfig, 0);
+
+ if (dhcp->callback != NULL && callback)
+ dhcp->callback(dhcp->network, FALSE);
+
+out:
+ dhcp_free(dhcp);
+}
+
+static void dhcp_valid(struct connman_dhcp *dhcp)
+{
+ if (dhcp->callback != NULL)
+ dhcp->callback(dhcp->network, TRUE);
}
-void connman_dhcp_unregister(struct connman_dhcp_driver *driver)
+static void no_lease_cb(GDHCPClient *dhcp_client, gpointer user_data)
{
- DBG("driver %p", driver);
+ struct connman_dhcp *dhcp = user_data;
+
+ DBG("No lease available");
- drivers = g_slist_remove(drivers, driver);
+ dhcp_invalidate(dhcp, TRUE);
}
-int connman_dhcp_update(struct connman_iface *iface,
- enum connman_dhcp_state state,
- struct connman_ipv4 *ipv4)
+static void lease_lost_cb(GDHCPClient *dhcp_client, gpointer user_data)
{
- DBG("iface %p state %d", iface, state);
+ struct connman_dhcp *dhcp = user_data;
+
+ DBG("Lease lost");
+
+ dhcp_invalidate(dhcp, TRUE);
+}
+
+static void ipv4ll_lost_cb(GDHCPClient *dhcp_client, gpointer user_data)
+{
+ struct connman_dhcp *dhcp = user_data;
+
+ DBG("Lease lost");
+
+ dhcp_invalidate(dhcp, TRUE);
+}
+
+
+static gboolean compare_string_arrays(char **array_a, char **array_b)
+{
+ int i;
+
+ if (array_a == NULL || array_b == NULL)
+ return FALSE;
+
+ if (g_strv_length(array_a) != g_strv_length(array_b))
+ return FALSE;
+
+ for (i = 0; array_a[i] != NULL &&
+ array_b[i] != NULL; i++) {
+ if (g_strcmp0(array_a[i], array_b[i]) != 0)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data)
+{
+ struct connman_dhcp *dhcp = user_data;
+ GList *list, *option = NULL;
+ char *address, *netmask = NULL, *gateway = NULL;
+ const char *c_address, *c_gateway;
+ char *domainname = NULL, *hostname = NULL;
+ char **nameservers, **timeservers, *pac = NULL;
+ int ns_entries;
+ struct connman_ipconfig *ipconfig;
+ struct connman_service *service;
+ unsigned char prefixlen, c_prefixlen;
+ gboolean ip_change;
+ int i;
+
+ DBG("Lease available");
+
+ service = __connman_service_lookup_from_network(dhcp->network);
+ if (service == NULL) {
+ connman_error("Can not lookup service");
+ return;
+ }
+
+ ipconfig = __connman_service_get_ip4config(service);
+ if (ipconfig == NULL) {
+ connman_error("Could not lookup ipconfig");
+ return;
+ }
+
+ c_address = __connman_ipconfig_get_local(ipconfig);
+ c_gateway = __connman_ipconfig_get_gateway(ipconfig);
+ c_prefixlen = __connman_ipconfig_get_prefixlen(ipconfig);
+
+ address = g_dhcp_client_get_address(dhcp_client);
+
+ __connman_ipconfig_set_dhcp_address(ipconfig, address);
+ DBG("last address %s", address);
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_SUBNET);
+ if (option != NULL)
+ netmask = g_strdup(option->data);
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_ROUTER);
+ if (option != NULL)
+ gateway = g_strdup(option->data);
+
+ prefixlen = __connman_ipconfig_netmask_prefix_len(netmask);
+ if (prefixlen == 255)
+ connman_warn("netmask: %s is invalid", netmask);
+
+ DBG("c_address %s", c_address);
+
+ if (address != NULL && c_address != NULL &&
+ g_strcmp0(address, c_address) != 0)
+ ip_change = TRUE;
+ else if (gateway != NULL && c_gateway != NULL &&
+ g_strcmp0(gateway, c_gateway) != 0)
+ ip_change = TRUE;
+ else if (prefixlen != c_prefixlen)
+ ip_change = TRUE;
+ else if (c_address == NULL || c_gateway == NULL)
+ ip_change = TRUE;
+ else
+ ip_change = FALSE;
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_DNS_SERVER);
+ ns_entries = g_list_length(option);
+ nameservers = g_try_new0(char *, ns_entries + 1);
+ if (nameservers != NULL) {
+ for (i = 0, list = option; list; list = list->next, i++)
+ nameservers[i] = g_strdup(list->data);
+ nameservers[ns_entries] = NULL;
+ }
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_DOMAIN_NAME);
+ if (option != NULL)
+ domainname = g_strdup(option->data);
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_HOST_NAME);
+ if (option != NULL)
+ hostname = g_strdup(option->data);
+
+ option = g_dhcp_client_get_option(dhcp_client, G_DHCP_NTP_SERVER);
+ ns_entries = g_list_length(option);
+ timeservers = g_try_new0(char *, ns_entries + 1);
+ if (timeservers != NULL) {
+ for (i = 0, list = option; list; list = list->next, i++)
+ timeservers[i] = g_strdup(list->data);
+ timeservers[ns_entries] = NULL;
+ }
+
+ option = g_dhcp_client_get_option(dhcp_client, 252);
+ if (option != NULL)
+ pac = g_strdup(option->data);
+
+ __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_DHCP);
+
+ if (ip_change == TRUE) {
+ __connman_ipconfig_set_local(ipconfig, address);
+ __connman_ipconfig_set_prefixlen(ipconfig, prefixlen);
+ __connman_ipconfig_set_gateway(ipconfig, gateway);
+ }
+
+ if (compare_string_arrays(nameservers, dhcp->nameservers) == FALSE) {
+ if (dhcp->nameservers != NULL) {
+ for (i = 0; dhcp->nameservers[i] != NULL; i++) {
+ __connman_service_nameserver_remove(service,
+ dhcp->nameservers[i], FALSE);
+ }
+ g_strfreev(dhcp->nameservers);
+ }
+
+ dhcp->nameservers = nameservers;
+
+ for (i = 0; dhcp->nameservers != NULL &&
+ dhcp->nameservers[i] != NULL; i++) {
+ __connman_service_nameserver_append(service,
+ dhcp->nameservers[i], FALSE);
+ }
+ } else {
+ g_strfreev(nameservers);
+ }
- if (state == CONNMAN_DHCP_STATE_BOUND) {
- DBG("address %s", inet_ntoa(ipv4->address));
- DBG("netmask %s", inet_ntoa(ipv4->netmask));
- DBG("gateway %s", inet_ntoa(ipv4->gateway));
- DBG("network %s", inet_ntoa(ipv4->network));
- DBG("broadcast %s", inet_ntoa(ipv4->broadcast));
- DBG("nameserver %s", inet_ntoa(ipv4->nameserver));
+ if (compare_string_arrays(timeservers, dhcp->timeservers) == FALSE) {
+ if (dhcp->timeservers != NULL) {
+ for (i = 0; dhcp->timeservers[i] != NULL; i++) {
+ __connman_service_timeserver_remove(service,
+ dhcp->timeservers[i]);
+ }
+ g_strfreev(dhcp->timeservers);
+ }
+
+ dhcp->timeservers = timeservers;
- if (iface->driver->set_ipv4) {
- iface->driver->set_ipv4(iface, ipv4);
- iface->ipv4 = *ipv4;
+ for (i = 0; dhcp->timeservers != NULL &&
+ dhcp->timeservers[i] != NULL; i++) {
+ __connman_service_timeserver_append(service,
+ dhcp->timeservers[i]);
}
+ } else {
+ g_strfreev(timeservers);
+ }
- connman_iface_update(iface, CONNMAN_IFACE_STATE_READY);
+ if (g_strcmp0(pac, dhcp->pac) != 0) {
+ g_free(dhcp->pac);
+ dhcp->pac = pac;
+
+ __connman_service_set_pac(service, dhcp->pac);
}
+ __connman_service_set_domainname(service, domainname);
+
+ if (domainname != NULL)
+ __connman_utsname_set_domainname(domainname);
+
+ if (hostname != NULL)
+ __connman_utsname_set_hostname(hostname);
+
+ if (ip_change == TRUE)
+ dhcp_valid(dhcp);
+
+ __connman_6to4_probe(service);
+
+ g_free(address);
+ g_free(netmask);
+ g_free(gateway);
+ g_free(domainname);
+ g_free(hostname);
+}
+
+static void ipv4ll_available_cb(GDHCPClient *dhcp_client, gpointer user_data)
+{
+ struct connman_dhcp *dhcp = user_data;
+ char *address, *netmask;
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig;
+ unsigned char prefixlen;
+
+ DBG("IPV4LL available");
+
+ service = __connman_service_lookup_from_network(dhcp->network);
+ if (service == NULL)
+ return;
+
+ ipconfig = __connman_service_get_ip4config(service);
+ if (ipconfig == NULL)
+ return;
+
+ address = g_dhcp_client_get_address(dhcp_client);
+ netmask = g_dhcp_client_get_netmask(dhcp_client);
+
+ prefixlen = __connman_ipconfig_netmask_prefix_len(netmask);
+
+ __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_DHCP);
+ __connman_ipconfig_set_local(ipconfig, address);
+ __connman_ipconfig_set_prefixlen(ipconfig, prefixlen);
+ __connman_ipconfig_set_gateway(ipconfig, NULL);
+
+ dhcp_valid(dhcp);
+
+ g_free(address);
+ g_free(netmask);
+}
+
+static void dhcp_debug(const char *str, void *data)
+{
+ connman_info("%s: %s\n", (const char *) data, str);
+}
+
+static int dhcp_request(struct connman_dhcp *dhcp)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig;
+ GDHCPClient *dhcp_client;
+ GDHCPClientError error;
+ const char *hostname;
+ int index;
+
+ DBG("dhcp %p", dhcp);
+
+ index = connman_network_get_index(dhcp->network);
+
+ dhcp_client = g_dhcp_client_new(G_DHCP_IPV4, index, &error);
+ if (error != G_DHCP_CLIENT_ERROR_NONE)
+ return -EINVAL;
+
+ if (getenv("CONNMAN_DHCP_DEBUG"))
+ g_dhcp_client_set_debug(dhcp_client, dhcp_debug, "DHCP");
+
+ g_dhcp_client_set_id(dhcp_client);
+
+ hostname = connman_utsname_get_hostname();
+ if (hostname != NULL)
+ g_dhcp_client_set_send(dhcp_client, G_DHCP_HOST_NAME, hostname);
+
+ g_dhcp_client_set_request(dhcp_client, G_DHCP_HOST_NAME);
+ g_dhcp_client_set_request(dhcp_client, G_DHCP_SUBNET);
+ g_dhcp_client_set_request(dhcp_client, G_DHCP_DNS_SERVER);
+ g_dhcp_client_set_request(dhcp_client, G_DHCP_DOMAIN_NAME);
+ g_dhcp_client_set_request(dhcp_client, G_DHCP_NTP_SERVER);
+ g_dhcp_client_set_request(dhcp_client, G_DHCP_ROUTER);
+ g_dhcp_client_set_request(dhcp_client, 252);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_LEASE_AVAILABLE,
+ lease_available_cb, dhcp);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_IPV4LL_AVAILABLE,
+ ipv4ll_available_cb, dhcp);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_LEASE_LOST, lease_lost_cb, dhcp);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_IPV4LL_LOST, ipv4ll_lost_cb, dhcp);
+
+ g_dhcp_client_register_event(dhcp_client,
+ G_DHCP_CLIENT_EVENT_NO_LEASE, no_lease_cb, dhcp);
+
+ dhcp->dhcp_client = dhcp_client;
+
+ service = __connman_service_lookup_from_network(dhcp->network);
+ ipconfig = __connman_service_get_ip4config(service);
+
+ return g_dhcp_client_start(dhcp_client,
+ __connman_ipconfig_get_dhcp_address(ipconfig));
+}
+
+static int dhcp_release(struct connman_dhcp *dhcp)
+{
+ DBG("dhcp %p", dhcp);
+
+ if (dhcp->dhcp_client == NULL)
+ return 0;
+
+ g_dhcp_client_stop(dhcp->dhcp_client);
+ g_dhcp_client_unref(dhcp->dhcp_client);
+
+ dhcp->dhcp_client = NULL;
+
return 0;
}
-int __connman_dhcp_request(struct connman_iface *iface)
+static void remove_network(gpointer user_data)
+{
+ struct connman_dhcp *dhcp = user_data;
+
+ DBG("dhcp %p", dhcp);
+
+ dhcp_invalidate(dhcp, FALSE);
+ dhcp_release(dhcp);
+
+ g_free(dhcp);
+}
+
+int __connman_dhcp_start(struct connman_network *network, dhcp_cb callback)
+{
+ struct connman_dhcp *dhcp;
+
+ DBG("");
+
+ dhcp = g_try_new0(struct connman_dhcp, 1);
+ if (dhcp == NULL)
+ return -ENOMEM;
+
+ dhcp->network = network;
+ dhcp->callback = callback;
+
+ connman_network_ref(network);
+
+ g_hash_table_replace(network_table, network, dhcp);
+
+ return dhcp_request(dhcp);
+}
+
+void __connman_dhcp_stop(struct connman_network *network)
{
- struct connman_dhcp_driver *driver = g_slist_nth_data(drivers, 0);
+ DBG("");
- if (driver && driver->request)
- return driver->request(iface);
+ if (network_table == NULL)
+ return;
- return -1;
+ if (g_hash_table_remove(network_table, network) == TRUE)
+ connman_network_unref(network);
}
-int __connman_dhcp_release(struct connman_iface *iface)
+int __connman_dhcp_init(void)
{
- struct connman_dhcp_driver *driver = g_slist_nth_data(drivers, 0);
+ DBG("");
+
+ network_table = g_hash_table_new_full(g_direct_hash, g_direct_equal,
+ NULL, remove_network);
- if (driver && driver->release)
- return driver->release(iface);
+ return 0;
+}
+
+void __connman_dhcp_cleanup(void)
+{
+ DBG("");
- return -1;
+ g_hash_table_destroy(network_table);
+ network_table = NULL;
}
projects / framework / connectivity / connman.git / blobdiff