diff options
Diffstat (limited to 'plugins/l2tp.c')
| -rw-r--r-- | plugins/l2tp.c | 532 |
1 files changed, 0 insertions, 532 deletions
diff --git a/plugins/l2tp.c b/plugins/l2tp.c deleted file mode 100644 index dfb56d9d..00000000 --- a/plugins/l2tp.c +++ /dev/null @@ -1,532 +0,0 @@ -/* - * - * Connection Manager - * - * Copyright (C) 2010 BMW Car IT GmbH. All rights reserved. - * Copyright (C) 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 - * 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 <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#include <stdio.h> -#include <net/if.h> - -#include <glib.h> - -#define CONNMAN_API_SUBJECT_TO_CHANGE -#include <connman/plugin.h> -#include <connman/provider.h> -#include <connman/log.h> -#include <connman/task.h> -#include <connman/dbus.h> -#include <connman/inet.h> - -#include "vpn.h" - -#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0])) - -enum { - OPT_STRING = 1, - OPT_BOOL = 2, -}; - -enum { - OPT_ALL = 1, - OPT_L2G = 2, - OPT_L2 = 3, - OPT_PPPD = 4, -}; - -struct { - const char *cm_opt; - const char *pppd_opt; - int sub; - const char *vpn_default; - int type; -} pppd_options[] = { - { "L2TP.User", "name", OPT_ALL, NULL, OPT_STRING }, - { "L2TP.BPS", "bps", OPT_L2, NULL, OPT_STRING }, - { "L2TP.LengthBit", "length bit", OPT_L2, NULL, OPT_STRING }, - { "L2TP.Challenge", "challenge", OPT_L2, NULL, OPT_STRING }, - { "L2TP.DefaultRoute", "defaultroute", OPT_L2, NULL, OPT_STRING }, - { "L2TP.FlowBit", "flow bit", OPT_L2, NULL, OPT_STRING }, - { "L2TP.TunnelRWS", "tunnel rws", OPT_L2, NULL, OPT_STRING }, - { "L2TP.Exclusive", "exclusive", OPT_L2, NULL, OPT_STRING }, - { "L2TP.Autodial", "autodial", OPT_L2, "yes", OPT_STRING }, - { "L2TP.Redial", "redial", OPT_L2, "yes", OPT_STRING }, - { "L2TP.RedialTimeout", "redial timeout", OPT_L2, "10", OPT_STRING }, - { "L2TP.MaxRedials", "max redials", OPT_L2, NULL, OPT_STRING }, - { "L2TP.RequirePAP", "require pap", OPT_L2, "no", OPT_STRING }, - { "L2TP.RequireCHAP", "require chap", OPT_L2, "yes", OPT_STRING }, - { "L2TP.ReqAuth", "require authentication", OPT_L2, "no", OPT_STRING }, - { "L2TP.AccessControl", "access control", OPT_L2G, "yes", OPT_STRING }, - { "L2TP.AuthFile", "auth file", OPT_L2G, NULL, OPT_STRING }, - { "L2TP.ForceUserSpace", "force userspace", OPT_L2G, NULL, OPT_STRING }, - { "L2TP.ListenAddr", "listen-addr", OPT_L2G, NULL, OPT_STRING }, - { "L2TP.Rand Source", "rand source", OPT_L2G, NULL, OPT_STRING }, - { "L2TP.IPsecSaref", "ipsec saref", OPT_L2G, NULL, OPT_STRING }, - { "L2TP.Port", "port", OPT_L2G, NULL, OPT_STRING }, - { "L2TP.EchoFailure", "lcp-echo-failure", OPT_PPPD, "0", OPT_STRING }, - { "L2TP.EchoInterval", "lcp-echo-interval", OPT_PPPD, "0", OPT_STRING }, - { "L2TP.Debug", "debug", OPT_PPPD, NULL, OPT_STRING }, - { "L2TP.RefuseEAP", "refuse-eap", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.RefusePAP", "refuse-pap", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.RefuseCHAP", "refuse-chap", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.RefuseMSCHAP", "refuse-mschap", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.RefuseMSCHAP2", "refuse-mschapv2", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.NoBSDComp", "nobsdcomp", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.NoPcomp", "nopcomp", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.UseAccomp", "accomp", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.NoDeflate", "nodeflatey", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.ReqMPPE", "require-mppe", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.ReqMPPE40", "require-mppe-40", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.ReqMPPE128", "require-mppe-128", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.ReqMPPEStateful", "mppe-stateful", OPT_PPPD, NULL, OPT_BOOL }, - { "L2TP.NoVJ", "no-vj-comp", OPT_PPPD, NULL, OPT_BOOL }, -}; - -static DBusConnection *connection; - -static DBusMessage *l2tp_get_sec(struct connman_task *task, - DBusMessage *msg, void *user_data) -{ - const char *user, *passwd; - struct connman_provider *provider = user_data; - - if (dbus_message_get_no_reply(msg) == FALSE) { - DBusMessage *reply; - - user = connman_provider_get_string(provider, "L2TP.User"); - passwd = connman_provider_get_string(provider, "L2TP.Password"); - - if (user == NULL || strlen(user) == 0 || - passwd == NULL || strlen(passwd) == 0) - return NULL; - - reply = dbus_message_new_method_return(msg); - if (reply == NULL) - return NULL; - - dbus_message_append_args(reply, DBUS_TYPE_STRING, &user, - DBUS_TYPE_STRING, &passwd, - DBUS_TYPE_INVALID); - - return reply; - } - - return NULL; -} - -static int l2tp_notify(DBusMessage *msg, struct connman_provider *provider) -{ - DBusMessageIter iter, dict; - const char *reason, *key, *value; - char *addressv4 = NULL, *netmask = NULL, *gateway = NULL; - char *ifname = NULL, *nameservers = NULL; - struct connman_ipaddress *ipaddress = NULL; - - dbus_message_iter_init(msg, &iter); - - dbus_message_iter_get_basic(&iter, &reason); - dbus_message_iter_next(&iter); - - if (!provider) { - connman_error("No provider found"); - return VPN_STATE_FAILURE; - } - - if (strcmp(reason, "auth failed") == 0) - return VPN_STATE_AUTH_FAILURE; - - if (strcmp(reason, "connect")) - return VPN_STATE_DISCONNECT; - - dbus_message_iter_recurse(&iter, &dict); - - while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) { - DBusMessageIter entry; - - dbus_message_iter_recurse(&dict, &entry); - dbus_message_iter_get_basic(&entry, &key); - dbus_message_iter_next(&entry); - dbus_message_iter_get_basic(&entry, &value); - - DBG("%s = %s", key, value); - - if (!strcmp(key, "INTERNAL_IP4_ADDRESS")) { - connman_provider_set_string(provider, "Address", value); - addressv4 = g_strdup(value); - } - - if (!strcmp(key, "INTERNAL_IP4_NETMASK")) { - connman_provider_set_string(provider, "Netmask", value); - netmask = g_strdup(value); - } - - if (!strcmp(key, "INTERNAL_IP4_DNS")) { - connman_provider_set_string(provider, "DNS", value); - nameservers = g_strdup(value); - } - - if (!strcmp(key, "INTERNAL_IFNAME")) - ifname = g_strdup(value); - - dbus_message_iter_next(&dict); - } - - if (vpn_set_ifname(provider, ifname) < 0) { - g_free(ifname); - g_free(addressv4); - g_free(netmask); - g_free(nameservers); - return VPN_STATE_FAILURE; - } - - if (addressv4 != NULL) - ipaddress = connman_ipaddress_alloc(AF_INET); - - g_free(ifname); - - if (ipaddress == NULL) { - connman_error("No IP address for provider"); - g_free(addressv4); - g_free(netmask); - g_free(nameservers); - return VPN_STATE_FAILURE; - } - - value = connman_provider_get_string(provider, "HostIP"); - if (value != NULL) { - connman_provider_set_string(provider, "Gateway", value); - gateway = g_strdup(value); - } - - if (addressv4 != NULL) - connman_ipaddress_set_ipv4(ipaddress, addressv4, netmask, - gateway); - - connman_provider_set_ipaddress(provider, ipaddress); - connman_provider_set_nameservers(provider, nameservers); - - g_free(addressv4); - g_free(netmask); - g_free(gateway); - g_free(nameservers); - connman_ipaddress_free(ipaddress); - - return VPN_STATE_CONNECT; -} - -static int l2tp_save(struct connman_provider *provider, GKeyFile *keyfile) -{ - const char *option; - int i; - - for (i = 0; i < (int)ARRAY_SIZE(pppd_options); i++) { - if (strncmp(pppd_options[i].cm_opt, "L2TP.", 5) == 0) { - option = connman_provider_get_string(provider, - pppd_options[i].cm_opt); - if (option == NULL) - continue; - - g_key_file_set_string(keyfile, - connman_provider_get_save_group(provider), - pppd_options[i].cm_opt, option); - } - } - return 0; -} - -static ssize_t full_write(int fd, const void *buf, size_t len) -{ - ssize_t byte_write; - - while (len) { - byte_write = write(fd, buf, len); - if (byte_write < 0) { - connman_error("failed to write config to l2tp: %s\n", - strerror(errno)); - return byte_write; - } - len -= byte_write; - buf += byte_write; - } - - return 0; -} - -static ssize_t l2tp_write_bool_option(int fd, - const char *key, const char *value) -{ - gchar *buf; - ssize_t ret = 0; - - if (key != NULL && value != NULL) { - if (strcasecmp(value, "yes") == 0 || - strcasecmp(value, "true") == 0 || - strcmp(value, "1") == 0) { - buf = g_strdup_printf("%s\n", key); - ret = full_write(fd, buf, strlen(buf)); - - g_free(buf); - } - } - - return ret; -} - -static int l2tp_write_option(int fd, const char *key, const char *value) -{ - gchar *buf; - ssize_t ret = 0; - - if (key != NULL) { - if (value != NULL) - buf = g_strdup_printf("%s %s\n", key, value); - else - buf = g_strdup_printf("%s\n", key); - - ret = full_write(fd, buf, strlen(buf)); - - g_free(buf); - } - - return ret; -} - -static int l2tp_write_section(int fd, const char *key, const char *value) -{ - gchar *buf; - ssize_t ret = 0; - - if (key != NULL && value != NULL) { - buf = g_strdup_printf("%s = %s\n", key, value); - ret = full_write(fd, buf, strlen(buf)); - - g_free(buf); - } - - return ret; -} - -static int write_pppd_option(struct connman_provider *provider, int fd) -{ - int i; - const char *opt_s; - - l2tp_write_option(fd, "nodetach", NULL); - l2tp_write_option(fd, "lock", NULL); - l2tp_write_option(fd, "usepeerdns", NULL); - l2tp_write_option(fd, "noipdefault", NULL); - l2tp_write_option(fd, "noauth", NULL); - l2tp_write_option(fd, "nodefaultroute", NULL); - l2tp_write_option(fd, "ipparam", "l2tp_plugin"); - - for (i = 0; i < (int)ARRAY_SIZE(pppd_options); i++) { - if (pppd_options[i].sub != OPT_ALL && - pppd_options[i].sub != OPT_PPPD) - continue; - - opt_s = connman_provider_get_string(provider, - pppd_options[i].cm_opt); - if (!opt_s) - opt_s = pppd_options[i].vpn_default; - - if (!opt_s) - continue; - - if (pppd_options[i].type == OPT_STRING) - l2tp_write_option(fd, - pppd_options[i].pppd_opt, opt_s); - else if (pppd_options[i].type == OPT_BOOL) - l2tp_write_bool_option(fd, - pppd_options[i].pppd_opt, opt_s); - } - - l2tp_write_option(fd, "plugin", - SCRIPTDIR "/libppp-plugin.so"); - - return 0; -} - - -static int l2tp_write_fields(struct connman_provider *provider, - int fd, int sub) -{ - int i; - const char *opt_s; - - for (i = 0; i < (int)ARRAY_SIZE(pppd_options); i++) { - if (pppd_options[i].sub != sub) - continue; - - opt_s = connman_provider_get_string(provider, - pppd_options[i].cm_opt); - if (!opt_s) - opt_s = pppd_options[i].vpn_default; - - if (!opt_s) - continue; - - if (pppd_options[i].type == OPT_STRING) - l2tp_write_section(fd, - pppd_options[i].pppd_opt, opt_s); - else if (pppd_options[i].type == OPT_BOOL) - l2tp_write_bool_option(fd, - pppd_options[i].pppd_opt, opt_s); - } - - return 0; -} - -static int l2tp_write_config(struct connman_provider *provider, - const char *pppd_name, int fd) -{ - const char *option; - - l2tp_write_option(fd, "[global]", NULL); - l2tp_write_fields(provider, fd, OPT_L2G); - - l2tp_write_option(fd, "[lac l2tp]", NULL); - - option = connman_provider_get_string(provider, "Host"); - l2tp_write_option(fd, "lns =", option); - - l2tp_write_fields(provider, fd, OPT_ALL); - l2tp_write_fields(provider, fd, OPT_L2); - - l2tp_write_option(fd, "pppoptfile =", pppd_name); - - return 0; -} - -static void l2tp_died(struct connman_task *task, int exit_code, void *user_data) -{ - char *conf_file; - - vpn_died(task, exit_code, user_data); - - conf_file = g_strdup_printf("/var/run/connman/connman-xl2tpd.conf"); - unlink(conf_file); - g_free(conf_file); - - conf_file = g_strdup_printf("/var/run/connman/connman-ppp-option.conf"); - unlink(conf_file); - g_free(conf_file); -} - -static int l2tp_connect(struct connman_provider *provider, - struct connman_task *task, const char *if_name) -{ - const char *host; - char *l2tp_name, *pppd_name; - int l2tp_fd, pppd_fd; - int err; - - if (connman_task_set_notify(task, "getsec", - l2tp_get_sec, provider)) - return -ENOMEM; - - host = connman_provider_get_string(provider, "Host"); - if (host == NULL) { - connman_error("Host not set; cannot enable VPN"); - return -EINVAL; - } - - l2tp_name = g_strdup_printf("/var/run/connman/connman-xl2tpd.conf"); - - l2tp_fd = open(l2tp_name, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR); - if (l2tp_fd < 0) { - g_free(l2tp_name); - connman_error("Error writing l2tp config"); - return -EIO; - } - - pppd_name = g_strdup_printf("/var/run/connman/connman-ppp-option.conf"); - - pppd_fd = open(pppd_name, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR); - if (pppd_fd < 0) { - connman_error("Error writing pppd config"); - g_free(l2tp_name); - g_free(pppd_name); - close(l2tp_fd); - return -EIO; - } - - l2tp_write_config(provider, pppd_name, l2tp_fd); - - write_pppd_option(provider, pppd_fd); - - connman_task_add_argument(task, "-D", NULL); - connman_task_add_argument(task, "-c", l2tp_name); - - g_free(l2tp_name); - g_free(pppd_name); - - err = connman_task_run(task, l2tp_died, provider, - NULL, NULL, NULL); - if (err < 0) { - connman_error("l2tp failed to start"); - return -EIO; - } - - return 0; -} - -static int l2tp_error_code(int exit_code) -{ - switch (exit_code) { - case 1: - return CONNMAN_PROVIDER_ERROR_CONNECT_FAILED; - default: - return CONNMAN_PROVIDER_ERROR_UNKNOWN; - } -} - -static struct vpn_driver vpn_driver = { - .flags = VPN_FLAG_NO_TUN, - .notify = l2tp_notify, - .connect = l2tp_connect, - .error_code = l2tp_error_code, - .save = l2tp_save, -}; - -static int l2tp_init(void) -{ - connection = connman_dbus_get_connection(); - - return vpn_register("l2tp", &vpn_driver, L2TP); -} - -static void l2tp_exit(void) -{ - vpn_unregister("l2tp"); - - dbus_connection_unref(connection); -} - -CONNMAN_PLUGIN_DEFINE(l2tp, "l2tp plugin", VERSION, - CONNMAN_PLUGIN_PRIORITY_DEFAULT, l2tp_init, l2tp_exit) |