X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fdhcp.c;h=951836fd5e7807c8f8f0f555ec4411a88c7b51fc;hb=7ef7e96fc2f3eb620fffb6f277339214efe83747;hp=8af6dab3fdf416aab01076ba341403769962cba8;hpb=e1ec0cf683d35746dd4e94abfab6ad5aa2de10fe;p=platform%2Fupstream%2Fconnman.git diff --git a/src/dhcp.c b/src/dhcp.c index 8af6dab..951836f 100644 --- a/src/dhcp.c +++ b/src/dhcp.c @@ -2,7 +2,7 @@ * * Connection Manager * - * Copyright (C) 2007 Intel Corporation. All rights reserved. + * Copyright (C) 2007-2013 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 @@ -22,70 +22,880 @@ #ifdef HAVE_CONFIG_H #include #endif +#include +#include +#include +#include +#include -#include +#ifndef IPV6_MIN_MTU +#define IPV6_MIN_MTU 1280 +#endif + +#include +#include + +#include #include #include "connman.h" -static GSList *drivers = NULL; +#define RATE_LIMIT_INTERVAL 60 /* delay between successive attempts */ + +struct connman_dhcp { + struct connman_ipconfig *ipconfig; + struct connman_network *network; + dhcp_cb callback; + gpointer user_data; + + char **nameservers; + char **timeservers; + char *pac; + + unsigned int timeout; + + GDHCPClient *ipv4ll_client; + GDHCPClient *dhcp_client; + char *ipv4ll_debug_prefix; + char *dhcp_debug_prefix; + + bool ipv4ll_running; +}; + +static GHashTable *ipconfig_table; -int connman_dhcp_register(struct connman_dhcp_driver *driver) +static void dhcp_free(struct connman_dhcp *dhcp) { - DBG("driver %p", driver); +#if defined TIZEN_EXT + DBG("dhcp_free [%p]", dhcp); +#endif + g_strfreev(dhcp->nameservers); + g_strfreev(dhcp->timeservers); + g_free(dhcp->pac); + + dhcp->nameservers = NULL; + dhcp->timeservers = NULL; + dhcp->pac = NULL; + + g_free(dhcp); +#if defined TIZEN_EXT + dhcp = NULL; +#endif +} + +static void ipv4ll_stop_client(struct connman_dhcp *dhcp) +{ +#if defined TIZEN_EXT + DBG("dhcp [%p] ipv4ll_client [%p]", dhcp, dhcp->ipv4ll_client); +#endif + if (!dhcp->ipv4ll_client) + return; + + g_dhcp_client_stop(dhcp->ipv4ll_client); + g_dhcp_client_unref(dhcp->ipv4ll_client); + dhcp->ipv4ll_client = NULL; + dhcp->ipv4ll_running = false; + + g_free(dhcp->ipv4ll_debug_prefix); + dhcp->ipv4ll_debug_prefix = NULL; +} + +static bool apply_dhcp_invalidate_on_network(struct connman_dhcp *dhcp) +{ + struct connman_service *service; + int i; + + if (!dhcp->network) + return true; + + service = connman_service_lookup_from_network(dhcp->network); + if (!service) { + connman_error("Can not lookup service"); + return false; + } + + __connman_service_set_domainname(service, NULL); + __connman_ipconfig_set_proxy_autoconfig(dhcp->ipconfig, NULL); + + if (dhcp->timeservers) { + for (i = 0; dhcp->timeservers[i]; i++) { + __connman_service_timeserver_remove(service, + dhcp->timeservers[i]); + } + g_strfreev(dhcp->timeservers); + dhcp->timeservers = NULL; + } + if (dhcp->nameservers) { + for (i = 0; dhcp->nameservers[i]; i++) { +#if defined TIZEN_EXT + __connman_service_nameserver_remove(service, + dhcp->nameservers[i], false, + CONNMAN_IPCONFIG_TYPE_IPV4); +#else + __connman_service_nameserver_remove(service, + dhcp->nameservers[i], false); +#endif + } + g_strfreev(dhcp->nameservers); + dhcp->nameservers = NULL; + } + + return true; +} + +/** + * 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, bool callback) +{ + DBG("dhcp %p callback %u", dhcp, callback); + + if (!dhcp) + return; + + __connman_6to4_remove(dhcp->ipconfig); + + if (!apply_dhcp_invalidate_on_network(dhcp)) + return; + + __connman_ipconfig_set_dhcp_address(dhcp->ipconfig, + __connman_ipconfig_get_local(dhcp->ipconfig)); + DBG("last address %s", + __connman_ipconfig_get_dhcp_address(dhcp->ipconfig)); + + __connman_ipconfig_address_remove(dhcp->ipconfig); + + __connman_ipconfig_set_local(dhcp->ipconfig, NULL); + __connman_ipconfig_set_broadcast(dhcp->ipconfig, NULL); + __connman_ipconfig_set_gateway(dhcp->ipconfig, NULL); + __connman_ipconfig_set_prefixlen(dhcp->ipconfig, 0); + + if (dhcp->callback && callback) + dhcp->callback(dhcp->ipconfig, dhcp->network, + false, dhcp->user_data); +} + +static void dhcp_valid(struct connman_dhcp *dhcp) +{ + if (dhcp->callback) + dhcp->callback(dhcp->ipconfig, dhcp->network, + true, dhcp->user_data); +} + +static void dhcp_debug(const char *str, void *data) +{ + connman_info("%s: %s", (const char *) data, str); +} + +static void ipv4ll_lost_cb(GDHCPClient *dhcp_client, gpointer user_data); +static void ipv4ll_available_cb(GDHCPClient *ipv4ll_client, gpointer user_data); + +static int ipv4ll_start_client(struct connman_dhcp *dhcp) +{ + GDHCPClient *ipv4ll_client; + GDHCPClientError error; + const char *hostname; + int index; + int err; + +#if defined TIZEN_EXT + DBG("dhcp %p", dhcp); +#endif + + if (dhcp->ipv4ll_client) + return -EALREADY; + + index = __connman_ipconfig_get_index(dhcp->ipconfig); + + ipv4ll_client = g_dhcp_client_new(G_DHCP_IPV4LL, index, &error); + if (error != G_DHCP_CLIENT_ERROR_NONE) + return -EINVAL; + +#if !defined TIZEN_EXT + if (getenv("CONNMAN_DHCP_DEBUG")) { +#endif + dhcp->ipv4ll_debug_prefix = g_strdup_printf("IPv4LL index %d", + index); + g_dhcp_client_set_debug(ipv4ll_client, dhcp_debug, + dhcp->ipv4ll_debug_prefix); +#if !defined TIZEN_EXT + } +#endif + + g_dhcp_client_set_id(ipv4ll_client); + + if (dhcp->network) { + hostname = connman_utsname_get_hostname(); + if (hostname) + g_dhcp_client_set_send(ipv4ll_client, + G_DHCP_HOST_NAME, hostname); + } + + g_dhcp_client_register_event(ipv4ll_client, + G_DHCP_CLIENT_EVENT_IPV4LL_LOST, ipv4ll_lost_cb, dhcp); + + g_dhcp_client_register_event(ipv4ll_client, + G_DHCP_CLIENT_EVENT_IPV4LL_AVAILABLE, + ipv4ll_available_cb, dhcp); - drivers = g_slist_append(drivers, driver); + dhcp->ipv4ll_client = ipv4ll_client; + err = g_dhcp_client_start(dhcp->ipv4ll_client, NULL); + if (err < 0) { + ipv4ll_stop_client(dhcp); + return err; + } + + dhcp->ipv4ll_running = true; return 0; } -void connman_dhcp_unregister(struct connman_dhcp_driver *driver) +static gboolean dhcp_retry_cb(gpointer user_data) +{ + struct connman_dhcp *dhcp = user_data; + + dhcp->timeout = 0; + +#if defined TIZEN_EXT + DBG("dhcp %p", dhcp); + DBG("dhcp->timeout %d", dhcp->timeout); +#endif + g_dhcp_client_start(dhcp->dhcp_client, + __connman_ipconfig_get_dhcp_address(dhcp->ipconfig)); + + return FALSE; +} + +static void no_lease_cb(GDHCPClient *dhcp_client, gpointer user_data) +{ + struct connman_dhcp *dhcp = user_data; + int err; + + DBG("No lease available ipv4ll %d client %p", dhcp->ipv4ll_running, + dhcp->ipv4ll_client); + +#if defined TIZEN_EXT + if (connman_setting_get_bool("EnableAutoIp") == false) { + DBG("link-local address autoconfiguration is disabled."); + if (dhcp->network) + __connman_network_disconnect(dhcp->network); + return; + } +#endif + if (dhcp->timeout > 0) + g_source_remove(dhcp->timeout); + + dhcp->timeout = g_timeout_add_seconds(RATE_LIMIT_INTERVAL, + dhcp_retry_cb, + dhcp); + if (dhcp->ipv4ll_running) + return; + + err = ipv4ll_start_client(dhcp); + if (err < 0) + DBG("Cannot start ipv4ll client (%d/%s)", err, strerror(-err)); + + /* Only notify upper layer if we have a problem */ + dhcp_invalidate(dhcp, !dhcp->ipv4ll_running); +} + +static void lease_lost_cb(GDHCPClient *dhcp_client, gpointer user_data) +{ + struct connman_dhcp *dhcp = user_data; + + DBG("Lease lost"); + + /* Upper layer will decide what to do, e.g. nothing or retry. */ + dhcp_invalidate(dhcp, true); +} + +static void ipv4ll_lost_cb(GDHCPClient *dhcp_client, gpointer user_data) +{ + struct connman_dhcp *dhcp = user_data; + + DBG("Lease lost"); + + ipv4ll_stop_client(dhcp); + + /* + * Since we lost our IPv4LL configuration we might as notify + * the upper layers. + */ + dhcp_invalidate(dhcp, true); +} + +static bool compare_string_arrays(char **array_a, char **array_b) +{ + int i; + + if (!array_a || !array_b) + return false; + + if (g_strv_length(array_a) != g_strv_length(array_b)) + return false; + + for (i = 0; array_a[i] && + array_b[i]; i++) { + if (g_strcmp0(array_a[i], array_b[i]) != 0) + return false; + } + + return true; +} + +static bool apply_lease_available_on_network(GDHCPClient *dhcp_client, + struct connman_dhcp *dhcp) { - DBG("driver %p", driver); + char **nameservers, **timeservers, *pac = NULL; + struct connman_service *service; + GList *list, *option = NULL; + int ns_entries; + int i; + + if (!dhcp->network) + return true; + + service = connman_service_lookup_from_network(dhcp->network); + if (!service) { + connman_error("Can not lookup service"); + return false; + } + + option = g_dhcp_client_get_option(dhcp_client, G_DHCP_MTU); + if (option && option->data) { + int mtu, index, err; + + mtu = atoi(option->data); + + if (mtu >= IPV6_MIN_MTU && mtu <= ETH_DATA_LEN) { + index = __connman_ipconfig_get_index(dhcp->ipconfig); + err = connman_inet_set_mtu(index, mtu); + + DBG("MTU %d index %d err %d", mtu, index, err); + } + } + + option = g_dhcp_client_get_option(dhcp_client, 252); + if (option) + pac = g_strdup(option->data); + + 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) { + 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) + __connman_service_set_domainname(service, option->data); + + option = g_dhcp_client_get_option(dhcp_client, G_DHCP_HOST_NAME); + if (option) + __connman_service_set_hostname(service, 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) { + for (i = 0, list = option; list; list = list->next, i++) + timeservers[i] = g_strdup(list->data); + timeservers[ns_entries] = NULL; + } + + if (!compare_string_arrays(nameservers, dhcp->nameservers)) { + if (dhcp->nameservers) { +#if defined TIZEN_EXT + for (i = 0; dhcp->nameservers[i] != NULL; i++) { + __connman_service_nameserver_remove(service, + dhcp->nameservers[i], false, + CONNMAN_IPCONFIG_TYPE_IPV4); + } +#else + for (i = 0; dhcp->nameservers[i]; i++) { + __connman_service_nameserver_remove(service, + dhcp->nameservers[i], false); + } +#endif + g_strfreev(dhcp->nameservers); + } + + dhcp->nameservers = nameservers; + + for (i = 0; dhcp->nameservers && dhcp->nameservers[i]; i++) { +#if defined TIZEN_EXT + __connman_service_nameserver_append(service, + dhcp->nameservers[i], false, + CONNMAN_IPCONFIG_TYPE_IPV4); +#else + __connman_service_nameserver_append(service, + dhcp->nameservers[i], false); +#endif + } + } else { + g_strfreev(nameservers); + } + + if (!compare_string_arrays(timeservers, dhcp->timeservers)) { + if (dhcp->timeservers) { + for (i = 0; dhcp->timeservers[i]; i++) { + __connman_service_timeserver_remove(service, + dhcp->timeservers[i]); + } + g_strfreev(dhcp->timeservers); + } + + dhcp->timeservers = timeservers; + + for (i = 0; dhcp->timeservers && dhcp->timeservers[i]; i++) { + __connman_service_timeserver_append(service, + dhcp->timeservers[i]); + } + } else { + g_strfreev(timeservers); + } - drivers = g_slist_remove(drivers, driver); + if (g_strcmp0(pac, dhcp->pac) != 0) { + g_free(dhcp->pac); + dhcp->pac = pac; + + __connman_ipconfig_set_proxy_autoconfig(dhcp->ipconfig, + dhcp->pac); + } + + if (connman_setting_get_bool("Enable6to4")) + __connman_6to4_probe(service); + + return true; } -int connman_dhcp_update(struct connman_iface *iface, - enum connman_dhcp_state state, - struct connman_ipv4 *ipv4) +static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data) { - DBG("iface %p state %d", iface, state); + struct connman_dhcp *dhcp = user_data; + GList *option = NULL; + enum connman_ipconfig_method old_method; + char *address, *netmask = NULL, *gateway = NULL; + const char *c_address, *c_gateway; + unsigned char prefixlen, c_prefixlen; + bool ip_change = false; + + DBG("Lease available"); + + if (dhcp->ipv4ll_client) { + ipv4ll_stop_client(dhcp); + dhcp_invalidate(dhcp, false); + } + + c_address = __connman_ipconfig_get_local(dhcp->ipconfig); + c_gateway = __connman_ipconfig_get_gateway(dhcp->ipconfig); + c_prefixlen = __connman_ipconfig_get_prefixlen(dhcp->ipconfig); + + address = g_dhcp_client_get_address(dhcp_client); - 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)); + __connman_ipconfig_set_dhcp_address(dhcp->ipconfig, address); + DBG("last address %s", address); - if (iface->driver->set_ipv4) { - iface->driver->set_ipv4(iface, ipv4); - iface->ipv4 = *ipv4; +#if defined TIZEN_EXT + int dhcp_lease_duration = g_dhcp_client_get_dhcp_lease_duration(dhcp_client); +#endif + + option = g_dhcp_client_get_option(dhcp_client, G_DHCP_SUBNET); + if (option) + netmask = g_strdup(option->data); + + option = g_dhcp_client_get_option(dhcp_client, G_DHCP_ROUTER); + if (option) + gateway = g_strdup(option->data); + + prefixlen = connman_ipaddress_calc_netmask_len(netmask); + if (prefixlen == 255) + connman_warn("netmask: %s is invalid", netmask); + + DBG("c_address %s", c_address); + + if (g_strcmp0(address, c_address)) { + ip_change = true; + if (c_address) { + /* Remove old ip address */ + __connman_ipconfig_address_remove(dhcp->ipconfig); } } + if (g_strcmp0(gateway, c_gateway)) { + ip_change = true; + if (c_gateway) { + /* Remove gateway ip address */ + __connman_ipconfig_gateway_remove(dhcp->ipconfig); + } + } else if (prefixlen != c_prefixlen) + ip_change = true; + + old_method = __connman_ipconfig_get_method(dhcp->ipconfig); + __connman_ipconfig_set_method(dhcp->ipconfig, + CONNMAN_IPCONFIG_METHOD_DHCP); + +#if defined TIZEN_EXT + __connman_ipconfig_set_dhcp_lease_duration(dhcp->ipconfig, dhcp_lease_duration); +#endif + + /* + * Notify IPv4.Configuration's method moved back to DHCP. + * + * This is the case ConnMan initially set an address by using + * IPv4LL because DHCP failed but now we got an address from DHCP. + */ + if (old_method == CONNMAN_IPCONFIG_METHOD_AUTO) { + struct connman_service *service = + connman_service_lookup_from_network(dhcp->network); + + if (service) + __connman_service_notify_ipv4_configuration(service); + } + + if (ip_change) { + __connman_ipconfig_set_local(dhcp->ipconfig, address); + __connman_ipconfig_set_prefixlen(dhcp->ipconfig, prefixlen); + __connman_ipconfig_set_gateway(dhcp->ipconfig, gateway); + } + + if (!apply_lease_available_on_network(dhcp_client, dhcp)) + goto done; + + if (ip_change) + dhcp_valid(dhcp); + +done: + g_free(address); + g_free(netmask); + g_free(gateway); +} + +static void ipv4ll_available_cb(GDHCPClient *ipv4ll_client, gpointer user_data) +{ + struct connman_dhcp *dhcp = user_data; + enum connman_ipconfig_method old_method; + char *address, *netmask; + unsigned char prefixlen; + + DBG("IPV4LL available"); + + address = g_dhcp_client_get_address(ipv4ll_client); + netmask = g_dhcp_client_get_netmask(ipv4ll_client); + + prefixlen = connman_ipaddress_calc_netmask_len(netmask); + + old_method = __connman_ipconfig_get_method(dhcp->ipconfig); + __connman_ipconfig_set_method(dhcp->ipconfig, + CONNMAN_IPCONFIG_METHOD_AUTO); + + /* + * Notify IPv4.Configuration's method is AUTO now. + * + * This is the case DHCP failed thus ConnMan used IPv4LL to get an + * address. Set IPv4.Configuration method to AUTO allows user to + * ask for a DHCP address by setting the method again to DHCP. + */ + if (old_method == CONNMAN_IPCONFIG_METHOD_DHCP) { + struct connman_service *service = + connman_service_lookup_from_network(dhcp->network); + + if (service) + __connman_service_notify_ipv4_configuration(service); + } + + __connman_ipconfig_set_local(dhcp->ipconfig, address); + __connman_ipconfig_set_prefixlen(dhcp->ipconfig, prefixlen); + __connman_ipconfig_set_gateway(dhcp->ipconfig, NULL); + + dhcp_valid(dhcp); + + g_free(address); + g_free(netmask); +} + +static int dhcp_initialize(struct connman_dhcp *dhcp) +{ + GDHCPClient *dhcp_client; + GDHCPClientError error; + int index; + const char *vendor_class_id; + + DBG("dhcp %p", dhcp); + + index = __connman_ipconfig_get_index(dhcp->ipconfig); + + dhcp_client = g_dhcp_client_new(G_DHCP_IPV4, index, &error); + if (error != G_DHCP_CLIENT_ERROR_NONE) +#if defined TIZEN_EXT + { + DBG("failed g_dhcp_client_new(%d), index(%d)", error, index); +#endif + return -EINVAL; +#if defined TIZEN_EXT + } +#endif + +#if !defined TIZEN_EXT + if (getenv("CONNMAN_DHCP_DEBUG")) { +#endif + dhcp->dhcp_debug_prefix = g_strdup_printf("DHCP index %d", + index); + g_dhcp_client_set_debug(dhcp_client, dhcp_debug, + dhcp->dhcp_debug_prefix); +#if !defined TIZEN_EXT + } +#endif + + g_dhcp_client_set_id(dhcp_client); + + if (dhcp->network) { + struct connman_service *service; + const char *hostname; + + service = connman_service_lookup_from_network(dhcp->network); + + hostname = __connman_service_get_hostname(service); + if (!hostname) + hostname = connman_utsname_get_hostname(); + + if (hostname) + 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_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, 252); + g_dhcp_client_set_request(dhcp_client, G_DHCP_MTU); + } + + g_dhcp_client_set_request(dhcp_client, G_DHCP_ROUTER); + g_dhcp_client_set_request(dhcp_client, G_DHCP_SUBNET); + + vendor_class_id = connman_option_get_string("VendorClassID"); + if (vendor_class_id) + g_dhcp_client_set_send(dhcp_client, G_DHCP_VENDOR_CLASS_ID, + vendor_class_id); + + 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_LEASE_LOST, lease_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; return 0; } -int __connman_dhcp_request(struct connman_iface *iface) +static int dhcp_release(struct connman_dhcp *dhcp) { - struct connman_dhcp_driver *driver = g_slist_nth_data(drivers, 0); + DBG("dhcp %p", dhcp); + + if (dhcp->timeout > 0) { + g_source_remove(dhcp->timeout); + dhcp->timeout = 0; + } - if (driver && driver->request) - return driver->request(iface); + if (dhcp->dhcp_client) { + g_dhcp_client_stop(dhcp->dhcp_client); + g_dhcp_client_unref(dhcp->dhcp_client); + } - return -1; + dhcp->dhcp_client = NULL; + + g_free(dhcp->dhcp_debug_prefix); + dhcp->dhcp_debug_prefix = NULL; + + ipv4ll_stop_client(dhcp); + + return 0; +} + +char *__connman_dhcp_get_server_address(struct connman_ipconfig *ipconfig) +{ + struct connman_dhcp *dhcp; + + dhcp = g_hash_table_lookup(ipconfig_table, ipconfig); + if (!dhcp) + return NULL; + + return g_dhcp_client_get_server_address(dhcp->dhcp_client); +} + +#if defined TIZEN_EXT_WIFI_MESH +int __connman_mesh_dhcp_start(struct connman_ipconfig *ipconfig, + dhcp_cb callback, gpointer user_data) +{ + struct connman_dhcp *dhcp; + int err; + + DBG(""); + + dhcp = g_hash_table_lookup(ipconfig_table, ipconfig); + if (!dhcp) { + + dhcp = g_try_new0(struct connman_dhcp, 1); + if (!dhcp) + return -ENOMEM; + + dhcp->ipconfig = ipconfig; + __connman_ipconfig_ref(ipconfig); + + err = dhcp_initialize(dhcp); + + if (err < 0) { + g_free(dhcp); + return err; + } + + g_hash_table_insert(ipconfig_table, ipconfig, dhcp); + } + + dhcp->callback = callback; + dhcp->user_data = user_data; + return g_dhcp_client_start(dhcp->dhcp_client, NULL); +} +#endif + +int __connman_dhcp_start(struct connman_ipconfig *ipconfig, + struct connman_network *network, dhcp_cb callback, + gpointer user_data) +{ +#if !defined TIZEN_EXT + const char *last_addr = NULL; +#endif + struct connman_dhcp *dhcp; + int err; + + DBG(""); + + if (network) { + struct connman_service *service; + + service = connman_service_lookup_from_network(network); + if (!service) + return -EINVAL; + } + +#if !defined TIZEN_EXT + last_addr = __connman_ipconfig_get_dhcp_address(ipconfig); +#endif + + dhcp = g_hash_table_lookup(ipconfig_table, ipconfig); + if (!dhcp) { + + dhcp = g_try_new0(struct connman_dhcp, 1); + if (!dhcp) + return -ENOMEM; + + dhcp->ipconfig = ipconfig; + __connman_ipconfig_ref(ipconfig); + + if (network) { + dhcp->network = network; + connman_network_ref(network); + } + + err = dhcp_initialize(dhcp); + + if (err < 0) { + if (network) + connman_network_unref(network); + g_free(dhcp); + return err; + } + + g_hash_table_insert(ipconfig_table, ipconfig, dhcp); + } + + dhcp->callback = callback; + dhcp->user_data = user_data; + +#if defined TIZEN_EXT + DBG("Start DHCP with DHCPDISCOVER request"); + + return g_dhcp_client_start(dhcp->dhcp_client, NULL); +#else + return g_dhcp_client_start(dhcp->dhcp_client, last_addr); +#endif +} + +void __connman_dhcp_stop(struct connman_ipconfig *ipconfig) +{ + struct connman_dhcp *dhcp; + + DBG("ipconfig_table %p ipconfig %p", ipconfig_table, ipconfig); + + if (!ipconfig_table) + return; + + dhcp = g_hash_table_lookup(ipconfig_table, ipconfig); + if (dhcp) { + g_hash_table_remove(ipconfig_table, ipconfig); + __connman_ipconfig_unref(ipconfig); + if (dhcp->network) + connman_network_unref(dhcp->network); + dhcp_release(dhcp); + dhcp_invalidate(dhcp, false); + dhcp_free(dhcp); + } } -int __connman_dhcp_release(struct connman_iface *iface) +void __connman_dhcp_decline(struct connman_ipconfig *ipconfig) { - struct connman_dhcp_driver *driver = g_slist_nth_data(drivers, 0); + struct connman_dhcp *dhcp; + const char *address; + struct in_addr addr; + + DBG("ipconfig_table %p ipconfig %p", ipconfig_table, ipconfig); + + if (!ipconfig_table) + return; - if (driver && driver->release) - return driver->release(iface); + dhcp = g_hash_table_lookup(ipconfig_table, ipconfig); + if (dhcp) { + address = __connman_ipconfig_get_local(ipconfig); + if (!address) + return; + + if (inet_pton(AF_INET, address, &addr) != 1) + connman_error("Could not convert address %s", address); + + g_dhcp_client_decline(dhcp->dhcp_client, htonl(addr.s_addr)); + } +} + +int __connman_dhcp_init(void) +{ + DBG(""); + + ipconfig_table = g_hash_table_new_full(g_direct_hash, g_direct_equal, + NULL, NULL); + + return 0; +} + +void __connman_dhcp_cleanup(void) +{ + DBG(""); - return -1; + g_hash_table_destroy(ipconfig_table); + ipconfig_table = NULL; }