diff options
Diffstat (limited to 'src/ppp-manager/nm-ppp-manager.c')
| -rw-r--r-- | src/ppp-manager/nm-ppp-manager.c | 1245 |
1 files changed, 0 insertions, 1245 deletions
diff --git a/src/ppp-manager/nm-ppp-manager.c b/src/ppp-manager/nm-ppp-manager.c deleted file mode 100644 index 34c550fa..00000000 --- a/src/ppp-manager/nm-ppp-manager.c +++ /dev/null @@ -1,1245 +0,0 @@ -/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ -/* NetworkManager -- Network link manager - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Copyright (C) 2008 Novell, Inc. - * Copyright (C) 2008 - 2012 Red Hat, Inc. - */ - -#include "nm-default.h" - -#include <sys/types.h> -#include <sys/wait.h> -#include <signal.h> -#include <string.h> -#include <unistd.h> -#include <arpa/inet.h> -#include <stdlib.h> - -#include <errno.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <asm/types.h> -#include <sys/stat.h> - -#include <linux/ppp_defs.h> -#ifndef aligned_u64 -#define aligned_u64 unsigned long long __attribute__((aligned(8))) -#endif -#include <linux/if.h> -#include <linux/if_ppp.h> - -#include "NetworkManagerUtils.h" -#include "nm-ppp-manager.h" -#include "nm-platform.h" -#include "nm-core-internal.h" - -#include "nmdbus-ppp-manager.h" - -#define _NMLOG_DOMAIN LOGD_PPP -#define _NMLOG_PREFIX_NAME "ppp-manager" -#define _NMLOG(level, ...) \ - G_STMT_START { \ - nm_log ((level), _NMLOG_DOMAIN, \ - "%s" _NM_UTILS_MACRO_FIRST(__VA_ARGS__), \ - _NMLOG_PREFIX_NAME": " \ - _NM_UTILS_MACRO_REST(__VA_ARGS__)); \ - } G_STMT_END - -static void _ppp_cleanup (NMPPPManager *manager); -static void _ppp_kill (NMPPPManager *manager); - -#define NM_PPPD_PLUGIN PPPD_PLUGIN_DIR "/nm-pppd-plugin.so" -#define PPP_MANAGER_SECRET_TRIES "ppp-manager-secret-tries" - -typedef struct { - GPid pid; - - char *parent_iface; - - NMActRequest *act_req; - GDBusMethodInvocation *pending_secrets_context; - NMActRequestGetSecretsCallId secrets_id; - const char *secrets_setting_name; - - guint ppp_watch_id; - guint ppp_timeout_handler; - - /* Monitoring */ - char *ip_iface; - int monitor_fd; - guint monitor_id; -} NMPPPManagerPrivate; - -#define NM_PPP_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_PPP_MANAGER, NMPPPManagerPrivate)) - -G_DEFINE_TYPE (NMPPPManager, nm_ppp_manager, NM_TYPE_EXPORTED_OBJECT) - -enum { - STATE_CHANGED, - IP4_CONFIG, - IP6_CONFIG, - STATS, - - LAST_SIGNAL -}; - -static guint signals[LAST_SIGNAL] = { 0 }; - -enum { - PROP_0, - PROP_PARENT_IFACE, - LAST_PROP -}; - -static void -nm_ppp_manager_init (NMPPPManager *manager) -{ - NM_PPP_MANAGER_GET_PRIVATE (manager)->monitor_fd = -1; -} - -static void -dispose (GObject *object) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (object); - - _ppp_cleanup (NM_PPP_MANAGER (object)); - _ppp_kill (NM_PPP_MANAGER (object)); - - g_clear_object (&priv->act_req); - - G_OBJECT_CLASS (nm_ppp_manager_parent_class)->dispose (object); -} - -static void -finalize (GObject *object) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (object); - - g_free (priv->ip_iface); - g_free (priv->parent_iface); - - G_OBJECT_CLASS (nm_ppp_manager_parent_class)->finalize (object); -} - -static void -set_property (GObject *object, guint prop_id, - const GValue *value, GParamSpec *pspec) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (object); - - switch (prop_id) { - case PROP_PARENT_IFACE: - g_free (priv->parent_iface); - priv->parent_iface = g_value_dup_string (value); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -get_property (GObject *object, guint prop_id, - GValue *value, GParamSpec *pspec) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (object); - - switch (prop_id) { - case PROP_PARENT_IFACE: - g_value_set_string (value, priv->parent_iface); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -NMPPPManager * -nm_ppp_manager_new (const char *iface) -{ - g_return_val_if_fail (iface != NULL, NULL); - - return (NMPPPManager *) g_object_new (NM_TYPE_PPP_MANAGER, - NM_PPP_MANAGER_PARENT_IFACE, iface, - NULL); -} - -/*******************************************/ - -static gboolean -monitor_cb (gpointer user_data) -{ - NMPPPManager *manager = NM_PPP_MANAGER (user_data); - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - struct ifreq req; - struct ppp_stats stats; - - memset (&req, 0, sizeof (req)); - memset (&stats, 0, sizeof (stats)); - req.ifr_data = (caddr_t) &stats; - - strncpy (req.ifr_name, priv->ip_iface, sizeof (req.ifr_name)); - if (ioctl (priv->monitor_fd, SIOCGPPPSTATS, &req) < 0) { - if (errno != ENODEV) - _LOGW ("could not read ppp stats: %s", strerror (errno)); - } else { - g_signal_emit (manager, signals[STATS], 0, - stats.p.ppp_ibytes, - stats.p.ppp_obytes); - } - - return TRUE; -} - -static void -monitor_stats (NMPPPManager *manager) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - - /* already monitoring */ - if (priv->monitor_fd >= 0) - return; - - priv->monitor_fd = socket (AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0); - if (priv->monitor_fd >= 0) { - g_warn_if_fail (priv->monitor_id == 0); - if (priv->monitor_id) - g_source_remove (priv->monitor_id); - priv->monitor_id = g_timeout_add_seconds (5, monitor_cb, manager); - } else - _LOGW ("could not monitor PPP stats: %s", strerror (errno)); -} - -/*******************************************/ - -static void -remove_timeout_handler (NMPPPManager *manager) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - - nm_clear_g_source (&priv->ppp_timeout_handler); -} - -static void -cancel_get_secrets (NMPPPManager *self) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (self); - - if (priv->secrets_id) - nm_act_request_cancel_secrets (priv->act_req, priv->secrets_id); - - g_return_if_fail (!priv->secrets_id && !priv->secrets_setting_name); -} - -static gboolean -extract_details_from_connection (NMConnection *connection, - const char *secrets_setting_name, - const char **username, - const char **password, - GError **error) -{ - NMSettingConnection *s_con; - NMSetting *setting; - const char *setting_name; - - g_return_val_if_fail (connection != NULL, FALSE); - g_return_val_if_fail (username != NULL, FALSE); - g_return_val_if_fail (password != NULL, FALSE); - - if (secrets_setting_name) - setting_name = secrets_setting_name; - else { - /* Get the setting matching the connection type */ - s_con = nm_connection_get_setting_connection (connection); - g_assert (s_con); - - setting_name = nm_setting_connection_get_connection_type (s_con); - g_assert (setting_name); - - /* In case of bluetooth connection, use GSM or CDMA setting */ - if (strcmp (setting_name, NM_SETTING_BLUETOOTH_SETTING_NAME) == 0) { - if (nm_connection_get_setting_gsm (connection)) - setting_name = NM_SETTING_GSM_SETTING_NAME; - else - setting_name = NM_SETTING_CDMA_SETTING_NAME; - } - } - - setting = nm_connection_get_setting_by_name (connection, setting_name); - if (!setting) { - /* This shouldn't ever happen */ - g_set_error_literal (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_FAILED, - "Missing type-specific setting; no secrets could be found."); - return FALSE; - } - - if (NM_IS_SETTING_PPPOE (setting)) { - *username = nm_setting_pppoe_get_username (NM_SETTING_PPPOE (setting)); - *password = nm_setting_pppoe_get_password (NM_SETTING_PPPOE (setting)); - } else if (NM_IS_SETTING_ADSL (setting)) { - *username = nm_setting_adsl_get_username (NM_SETTING_ADSL (setting)); - *password = nm_setting_adsl_get_password (NM_SETTING_ADSL (setting)); - } else if (NM_IS_SETTING_GSM (setting)) { - *username = nm_setting_gsm_get_username (NM_SETTING_GSM (setting)); - *password = nm_setting_gsm_get_password (NM_SETTING_GSM (setting)); - } else if (NM_IS_SETTING_CDMA (setting)) { - *username = nm_setting_cdma_get_username (NM_SETTING_CDMA (setting)); - *password = nm_setting_cdma_get_password (NM_SETTING_CDMA (setting)); - } - - return TRUE; -} - -static void -ppp_secrets_cb (NMActRequest *req, - NMActRequestGetSecretsCallId call_id, - NMSettingsConnection *settings_connection, /* unused (we pass NULL here) */ - GError *error, - gpointer user_data) -{ - NMPPPManager *self = NM_PPP_MANAGER (user_data); - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (self); - const char *username = NULL; - const char *password = NULL; - GError *local = NULL; - NMConnection *applied_connection; - - g_return_if_fail (priv->pending_secrets_context != NULL); - g_return_if_fail (req == priv->act_req); - g_return_if_fail (call_id == priv->secrets_id); - - if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) - goto out; - - if (error) { - _LOGW ("%s", error->message); - g_dbus_method_invocation_return_gerror (priv->pending_secrets_context, error); - goto out; - } - - applied_connection = nm_act_request_get_applied_connection (req); - - if (!extract_details_from_connection (applied_connection, priv->secrets_setting_name, &username, &password, &local)) { - _LOGW ("%s", local->message); - g_dbus_method_invocation_take_error (priv->pending_secrets_context, local); - goto out; - } - - /* This is sort of a hack but... - * pppd plugin only ever needs username and password. Passing the full - * connection there would mean some bloat: the plugin would need to link - * against libnm just to parse this. So instead, let's just send what - * it needs. - */ - g_dbus_method_invocation_return_value ( - priv->pending_secrets_context, - g_variant_new ("(ss)", username ? username : "", password ? password : "")); - - out: - priv->pending_secrets_context = NULL; - priv->secrets_id = NULL; - priv->secrets_setting_name = NULL; -} - -static void -impl_ppp_manager_need_secrets (NMPPPManager *manager, - GDBusMethodInvocation *context) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - NMConnection *applied_connection; - const char *username = NULL; - const char *password = NULL; - guint32 tries; - GPtrArray *hints = NULL; - GError *error = NULL; - NMSecretAgentGetSecretsFlags flags = NM_SECRET_AGENT_GET_SECRETS_FLAG_ALLOW_INTERACTION; - - nm_active_connection_clear_secrets (NM_ACTIVE_CONNECTION (priv->act_req)); - - applied_connection = nm_act_request_get_applied_connection (priv->act_req); - - priv->secrets_setting_name = nm_connection_need_secrets (applied_connection, &hints); - if (!priv->secrets_setting_name) { - /* Use existing secrets from the connection */ - if (extract_details_from_connection (applied_connection, NULL, &username, &password, &error)) { - /* Send existing secrets to the PPP plugin */ - priv->pending_secrets_context = context; - ppp_secrets_cb (priv->act_req, priv->secrets_id, NULL, NULL, manager); - } else { - _LOGW ("%s", error->message); - g_dbus_method_invocation_take_error (priv->pending_secrets_context, error); - } - return; - } - - /* Only ask for completely new secrets after retrying them once; some devices - * appear to ask a few times when they actually don't even care what you - * pass back. - */ - tries = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (applied_connection), PPP_MANAGER_SECRET_TRIES)); - if (tries > 1) - flags |= NM_SECRET_AGENT_GET_SECRETS_FLAG_REQUEST_NEW; - - priv->secrets_id = nm_act_request_get_secrets (priv->act_req, - priv->secrets_setting_name, - flags, - hints ? g_ptr_array_index (hints, 0) : NULL, - ppp_secrets_cb, - manager); - g_object_set_data (G_OBJECT (applied_connection), PPP_MANAGER_SECRET_TRIES, GUINT_TO_POINTER (++tries)); - priv->pending_secrets_context = context; - - if (hints) - g_ptr_array_free (hints, TRUE); -} - -static void -impl_ppp_manager_set_state (NMPPPManager *manager, - GDBusMethodInvocation *context, - guint32 state) -{ - g_signal_emit (manager, signals[STATE_CHANGED], 0, state); - - g_dbus_method_invocation_return_value (context, NULL); -} - -static gboolean -set_ip_config_common (NMPPPManager *self, - GVariant *config_dict, - const char *iface_prop, - guint32 *out_mtu) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (self); - NMConnection *applied_connection; - NMSettingPpp *s_ppp; - const char *iface; - - if (!g_variant_lookup (config_dict, iface_prop, "&s", &iface)) { - _LOGE ("no interface received!"); - return FALSE; - } - if (priv->ip_iface == NULL) - priv->ip_iface = g_strdup (iface); - - /* Got successful IP config; obviously the secrets worked */ - applied_connection = nm_act_request_get_applied_connection (priv->act_req); - g_object_set_data (G_OBJECT (applied_connection), PPP_MANAGER_SECRET_TRIES, NULL); - - if (out_mtu) { - /* Get any custom MTU */ - s_ppp = nm_connection_get_setting_ppp (applied_connection); - *out_mtu = s_ppp ? nm_setting_ppp_get_mtu (s_ppp) : 0; - } - - monitor_stats (self); - return TRUE; -} - -static void -impl_ppp_manager_set_ip4_config (NMPPPManager *manager, - GDBusMethodInvocation *context, - GVariant *config_dict) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - NMIP4Config *config; - NMPlatformIP4Address address; - guint32 u32; - GVariantIter *iter; - - _LOGI ("(IPv4 Config Get) reply received."); - - remove_timeout_handler (manager); - - config = nm_ip4_config_new (nm_platform_link_get_ifindex (NM_PLATFORM_GET, priv->ip_iface)); - - memset (&address, 0, sizeof (address)); - address.plen = 32; - - if (g_variant_lookup (config_dict, NM_PPP_IP4_CONFIG_ADDRESS, "u", &u32)) - address.address = u32; - - if (g_variant_lookup (config_dict, NM_PPP_IP4_CONFIG_GATEWAY, "u", &u32)) { - nm_ip4_config_set_gateway (config, u32); - address.peer_address = u32; - } else - address.peer_address = address.address; - - if (g_variant_lookup (config_dict, NM_PPP_IP4_CONFIG_PREFIX, "u", &u32)) - address.plen = u32; - - if (address.address && address.plen && address.plen <= 32) { - address.addr_source = NM_IP_CONFIG_SOURCE_PPP; - nm_ip4_config_add_address (config, &address); - } else { - _LOGE ("invalid IPv4 address received!"); - goto out; - } - - if (g_variant_lookup (config_dict, NM_PPP_IP4_CONFIG_DNS, "au", &iter)) { - while (g_variant_iter_next (iter, "u", &u32)) - nm_ip4_config_add_nameserver (config, u32); - g_variant_iter_free (iter); - } - - if (g_variant_lookup (config_dict, NM_PPP_IP4_CONFIG_WINS, "au", &iter)) { - while (g_variant_iter_next (iter, "u", &u32)) - nm_ip4_config_add_wins (config, u32); - g_variant_iter_free (iter); - } - - if (!set_ip_config_common (manager, config_dict, NM_PPP_IP4_CONFIG_INTERFACE, &u32)) - goto out; - - if (u32) - nm_ip4_config_set_mtu (config, u32, NM_IP_CONFIG_SOURCE_PPP); - - /* Push the IP4 config up to the device */ - g_signal_emit (manager, signals[IP4_CONFIG], 0, priv->ip_iface, config); - -out: - g_object_unref (config); - g_dbus_method_invocation_return_value (context, NULL); -} - -/* Converts the named Interface Identifier item to an IPv6 LL address and - * returns the IID. - */ -static gboolean -iid_value_to_ll6_addr (GVariant *dict, - const char *prop, - struct in6_addr *out_addr, - NMUtilsIPv6IfaceId *out_iid) -{ - guint64 iid; - - if (!g_variant_lookup (dict, prop, "t", &iid)) { - _LOGD ("pppd plugin property '%s' missing or not a uint64", prop); - return FALSE; - } - g_return_val_if_fail (iid != 0, FALSE); - - /* Construct an IPv6 LL address from the interface identifier. See - * http://tools.ietf.org/html/rfc4291#section-2.5.1 (IPv6) and - * http://tools.ietf.org/html/rfc5072#section-4.1 (IPv6 over PPP). - */ - memset (out_addr->s6_addr, 0, sizeof (out_addr->s6_addr)); - out_addr->s6_addr16[0] = htons (0xfe80); - memcpy (out_addr->s6_addr + 8, &iid, sizeof (iid)); - if (out_iid) - nm_utils_ipv6_interface_identifier_get_from_addr (out_iid, out_addr); - return TRUE; -} - -static void -impl_ppp_manager_set_ip6_config (NMPPPManager *manager, - GDBusMethodInvocation *context, - GVariant *config_dict) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - NMIP6Config *config; - NMPlatformIP6Address addr; - struct in6_addr a; - NMUtilsIPv6IfaceId iid = NM_UTILS_IPV6_IFACE_ID_INIT; - gboolean has_peer = FALSE; - - _LOGI ("(IPv6 Config Get) reply received."); - - remove_timeout_handler (manager); - - config = nm_ip6_config_new (nm_platform_link_get_ifindex (NM_PLATFORM_GET, priv->ip_iface)); - - memset (&addr, 0, sizeof (addr)); - addr.plen = 64; - - if (iid_value_to_ll6_addr (config_dict, NM_PPP_IP6_CONFIG_PEER_IID, &a, NULL)) { - nm_ip6_config_set_gateway (config, &a); - addr.peer_address = a; - has_peer = TRUE; - } - - if (iid_value_to_ll6_addr (config_dict, NM_PPP_IP6_CONFIG_OUR_IID, &addr.address, &iid)) { - if (!has_peer) - addr.peer_address = addr.address; - nm_ip6_config_add_address (config, &addr); - - if (set_ip_config_common (manager, config_dict, NM_PPP_IP6_CONFIG_INTERFACE, NULL)) { - /* Push the IPv6 config and interface identifier up to the device */ - g_signal_emit (manager, signals[IP6_CONFIG], 0, priv->ip_iface, &iid, config); - } - } else - _LOGE ("invalid IPv6 address received!"); - - g_object_unref (config); - g_dbus_method_invocation_return_value (context, NULL); -} - -static void -nm_ppp_manager_class_init (NMPPPManagerClass *manager_class) -{ - GObjectClass *object_class = G_OBJECT_CLASS (manager_class); - NMExportedObjectClass *exported_object_class = NM_EXPORTED_OBJECT_CLASS (manager_class); - - g_type_class_add_private (manager_class, sizeof (NMPPPManagerPrivate)); - - exported_object_class->export_path = NM_DBUS_PATH "/PPP/%u"; - exported_object_class->export_on_construction = TRUE; - - object_class->dispose = dispose; - object_class->finalize = finalize; - object_class->get_property = get_property; - object_class->set_property = set_property; - - /* Properties */ - g_object_class_install_property - (object_class, PROP_PARENT_IFACE, - g_param_spec_string (NM_PPP_MANAGER_PARENT_IFACE, "", "", - NULL, - G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | - G_PARAM_STATIC_STRINGS)); - - /* signals */ - signals[STATE_CHANGED] = - g_signal_new (NM_PPP_MANAGER_STATE_CHANGED, - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMPPPManagerClass, state_changed), - NULL, NULL, NULL, - G_TYPE_NONE, 1, - G_TYPE_UINT); - - signals[IP4_CONFIG] = - g_signal_new ("ip4-config", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMPPPManagerClass, ip4_config), - NULL, NULL, NULL, - G_TYPE_NONE, 2, - G_TYPE_STRING, - G_TYPE_OBJECT); - - signals[IP6_CONFIG] = - g_signal_new ("ip6-config", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMPPPManagerClass, ip6_config), - NULL, NULL, NULL, - G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_OBJECT); - - signals[STATS] = - g_signal_new ("stats", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMPPPManagerClass, stats), - NULL, NULL, NULL, - G_TYPE_NONE, 2, - G_TYPE_UINT, G_TYPE_UINT); - - nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (manager_class), - NMDBUS_TYPE_PPP_MANAGER_SKELETON, - "NeedSecrets", impl_ppp_manager_need_secrets, - "SetIp4Config", impl_ppp_manager_set_ip4_config, - "SetIp6Config", impl_ppp_manager_set_ip6_config, - "SetState", impl_ppp_manager_set_state, - NULL); -} - -/*******************************************/ - - - -typedef struct { - GPtrArray *array; - GStringChunk *chunk; -} NMCmdLine; - -static NMCmdLine * -nm_cmd_line_new (void) -{ - NMCmdLine *cmd; - - cmd = g_slice_new (NMCmdLine); - cmd->array = g_ptr_array_new (); - cmd->chunk = g_string_chunk_new (1024); - - return cmd; -} - -static void -nm_cmd_line_destroy (NMCmdLine *cmd) -{ - g_ptr_array_free (cmd->array, TRUE); - g_string_chunk_free (cmd->chunk); - g_slice_free (NMCmdLine, cmd); -} - -static char * -nm_cmd_line_to_str (NMCmdLine *cmd) -{ - char *str; - - g_ptr_array_add (cmd->array, NULL); - str = g_strjoinv (" ", (gchar **) cmd->array->pdata); - g_ptr_array_remove_index (cmd->array, cmd->array->len - 1); - - return str; -} - -static void -nm_cmd_line_add_string (NMCmdLine *cmd, const char *str) -{ - g_ptr_array_add (cmd->array, g_string_chunk_insert (cmd->chunk, str)); -} - -static void -nm_cmd_line_add_int (NMCmdLine *cmd, int i) -{ - char *str; - - str = g_strdup_printf ("%d", i); - nm_cmd_line_add_string (cmd, str); - g_free (str); -} - -/*******************************************/ - -static void -ppp_exit_code (guint pppd_exit_status, GPid pid) -{ - const char *msg; - - switch (pppd_exit_status) { - case 1: - msg = "Fatal pppd error"; - break; - case 2: - msg = "pppd options error"; - break; - case 3: - msg = "No root priv error"; - break; - case 4: - msg = "No ppp module error"; - break; - case 5: - msg = "pppd received a signal"; - break; - case 6: - msg = "Serial port lock failed"; - break; - case 7: - msg = "Serial port open failed"; - break; - case 8: - msg = "Connect script failed"; - break; - case 9: - msg = "Pty program error"; - break; - case 10: - msg = "PPP negotiation failed"; - break; - case 11: - msg = "Peer didn't authenticatie itself"; - break; - case 12: - msg = "Link idle: Idle Seconds reached."; - break; - case 13: - msg = "Connect time limit reached."; - break; - case 14: - msg = "Callback negotiated, call should come back."; - break; - case 15: - msg = "Lack of LCP echo responses"; - break; - case 16: - msg = "A modem hung up the phone"; - break; - case 17: - msg = "Loopback detected"; - break; - case 18: - msg = "The init script failed"; - break; - case 19: - msg = "Authentication error.\n" - "We failed to authenticate ourselves to the peer.\n" - "Maybe bad account or password?"; - break; - default: - msg = "Unknown error"; - } - - _LOGW ("pppd pid %d exited with error: %s", pid, msg); -} - -static void -ppp_watch_cb (GPid pid, gint status, gpointer user_data) -{ - NMPPPManager *manager = NM_PPP_MANAGER (user_data); - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - guint err; - - g_assert (pid == priv->pid); - - if (WIFEXITED (status)) { - err = WEXITSTATUS (status); - if (err != 0) - ppp_exit_code (err, priv->pid); - } else if (WIFSTOPPED (status)) { - _LOGI ("pppd pid %d stopped unexpectedly with signal %d", priv->pid, WSTOPSIG (status)); - } else if (WIFSIGNALED (status)) { - _LOGI ("pppd pid %d died with signal %d", priv->pid, WTERMSIG (status)); - } else - _LOGI ("pppd pid %d died from an unknown cause", priv->pid); - - _LOGD ("pppd pid %d cleaned up", priv->pid); - priv->pid = 0; - priv->ppp_watch_id = 0; - g_signal_emit (manager, signals[STATE_CHANGED], 0, NM_PPP_STATUS_DEAD); -} - -static gboolean -pppd_timed_out (gpointer data) -{ - NMPPPManager *manager = NM_PPP_MANAGER (data); - - _LOGW ("pppd timed out or didn't initialize our dbus module"); - _ppp_cleanup (manager); - _ppp_kill (manager); - - g_signal_emit (manager, signals[STATE_CHANGED], 0, NM_PPP_STATUS_DEAD); - - return FALSE; -} - -static NMCmdLine * -create_pppd_cmd_line (NMPPPManager *self, - NMSettingPpp *setting, - NMSettingPppoe *pppoe, - NMSettingAdsl *adsl, - const char *ppp_name, - guint baud_override, - GError **err) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (self); - const char *pppd_binary = NULL; - NMCmdLine *cmd; - gboolean ppp_debug; - - g_return_val_if_fail (setting != NULL, NULL); - - pppd_binary = nm_utils_find_helper ("pppd", NULL, err); - if (!pppd_binary) - return NULL; - - /* Create pppd command line */ - cmd = nm_cmd_line_new (); - nm_cmd_line_add_string (cmd, pppd_binary); - - nm_cmd_line_add_string (cmd, "nodetach"); - nm_cmd_line_add_string (cmd, "lock"); - - /* NM handles setting the default route */ - nm_cmd_line_add_string (cmd, "nodefaultroute"); - - /* Allow IPv6 to be configured by IPV6CP */ - nm_cmd_line_add_string (cmd, "ipv6"); - nm_cmd_line_add_string (cmd, ","); - - ppp_debug = !!getenv ("NM_PPP_DEBUG"); - if (nm_logging_enabled (LOGL_DEBUG, LOGD_PPP)) - ppp_debug = TRUE; - - if (ppp_debug) - nm_cmd_line_add_string (cmd, "debug"); - - if (ppp_name) { - nm_cmd_line_add_string (cmd, "user"); - nm_cmd_line_add_string (cmd, ppp_name); - } - - if (pppoe) { - char *dev_str; - const char *pppoe_service; - - nm_cmd_line_add_string (cmd, "plugin"); - nm_cmd_line_add_string (cmd, "rp-pppoe.so"); - - dev_str = g_strdup_printf ("nic-%s", priv->parent_iface); - nm_cmd_line_add_string (cmd, dev_str); - g_free (dev_str); - - pppoe_service = nm_setting_pppoe_get_service (pppoe); - if (pppoe_service) { - nm_cmd_line_add_string (cmd, "rp_pppoe_service"); - nm_cmd_line_add_string (cmd, pppoe_service); - } - } else if (adsl) { - const gchar *protocol = nm_setting_adsl_get_protocol (adsl); - - if (!strcmp (protocol, NM_SETTING_ADSL_PROTOCOL_PPPOA)) { - guint32 vpi = nm_setting_adsl_get_vpi (adsl); - guint32 vci = nm_setting_adsl_get_vci (adsl); - const char *encaps = nm_setting_adsl_get_encapsulation (adsl); - gchar *vpivci; - - nm_cmd_line_add_string (cmd, "plugin"); - nm_cmd_line_add_string (cmd, "pppoatm.so"); - - vpivci = g_strdup_printf("%d.%d", vpi, vci); - nm_cmd_line_add_string (cmd, vpivci); - g_free (vpivci); - - if (g_strcmp0 (encaps, NM_SETTING_ADSL_ENCAPSULATION_LLC) == 0) - nm_cmd_line_add_string (cmd, "llc-encaps"); - else /*if (g_strcmp0 (encaps, NM_SETTING_ADSL_ENCAPSULATION_VCMUX) == 0)*/ - nm_cmd_line_add_string (cmd, "vc-encaps"); - - } else if (!strcmp (protocol, NM_SETTING_ADSL_PROTOCOL_PPPOE)) { - nm_cmd_line_add_string (cmd, "plugin"); - nm_cmd_line_add_string (cmd, "rp-pppoe.so"); - nm_cmd_line_add_string (cmd, priv->parent_iface); - } - - nm_cmd_line_add_string (cmd, "noipdefault"); - } else { - nm_cmd_line_add_string (cmd, priv->parent_iface); - /* Don't send some random address as the local address */ - nm_cmd_line_add_string (cmd, "noipdefault"); - } - - if (nm_setting_ppp_get_baud (setting)) - nm_cmd_line_add_int (cmd, nm_setting_ppp_get_baud (setting)); - else if (baud_override) - nm_cmd_line_add_int (cmd, (int) baud_override); - - /* noauth by default, because we certainly don't have any information - * with which to verify anything the peer gives us if we ask it to - * authenticate itself, which is what 'auth' really means. - */ - nm_cmd_line_add_string (cmd, "noauth"); - - if (nm_setting_ppp_get_refuse_eap (setting)) - nm_cmd_line_add_string (cmd, "refuse-eap"); - if (nm_setting_ppp_get_refuse_pap (setting)) - nm_cmd_line_add_string (cmd, "refuse-pap"); - if (nm_setting_ppp_get_refuse_chap (setting)) - nm_cmd_line_add_string (cmd, "refuse-chap"); - if (nm_setting_ppp_get_refuse_mschap (setting)) - nm_cmd_line_add_string (cmd, "refuse-mschap"); - if (nm_setting_ppp_get_refuse_mschapv2 (setting)) - nm_cmd_line_add_string (cmd, "refuse-mschap-v2"); - if (nm_setting_ppp_get_nobsdcomp (setting)) - nm_cmd_line_add_string (cmd, "nobsdcomp"); - if (nm_setting_ppp_get_no_vj_comp (setting)) - nm_cmd_line_add_string (cmd, "novj"); - if (nm_setting_ppp_get_nodeflate (setting)) - nm_cmd_line_add_string (cmd, "nodeflate"); - if (nm_setting_ppp_get_require_mppe (setting)) - nm_cmd_line_add_string (cmd, "require-mppe"); - if (nm_setting_ppp_get_require_mppe_128 (setting)) - nm_cmd_line_add_string (cmd, "require-mppe-128"); - if (nm_setting_ppp_get_mppe_stateful (setting)) - nm_cmd_line_add_string (cmd, "mppe-stateful"); - if (nm_setting_ppp_get_crtscts (setting)) - nm_cmd_line_add_string (cmd, "crtscts"); - - /* Always ask for DNS, we don't have to use them if the connection - * overrides the returned servers. - */ - nm_cmd_line_add_string (cmd, "usepeerdns"); - - if (nm_setting_ppp_get_mru (setting)) { - nm_cmd_line_add_string (cmd, "mru"); - nm_cmd_line_add_int (cmd, nm_setting_ppp_get_mru (setting)); - } - - if (nm_setting_ppp_get_mtu (setting)) { - nm_cmd_line_add_string (cmd, "mtu"); - nm_cmd_line_add_int (cmd, nm_setting_ppp_get_mtu (setting)); - } - - nm_cmd_line_add_string (cmd, "lcp-echo-failure"); - nm_cmd_line_add_int (cmd, nm_setting_ppp_get_lcp_echo_failure (setting)); - - nm_cmd_line_add_string (cmd, "lcp-echo-interval"); - nm_cmd_line_add_int (cmd, nm_setting_ppp_get_lcp_echo_interval (setting)); - - /* Avoid pppd to exit if no traffic going through */ - nm_cmd_line_add_string (cmd, "idle"); - nm_cmd_line_add_int (cmd, 0); - - nm_cmd_line_add_string (cmd, "ipparam"); - nm_cmd_line_add_string (cmd, nm_exported_object_get_path (NM_EXPORTED_OBJECT (self))); - - nm_cmd_line_add_string (cmd, "plugin"); - nm_cmd_line_add_string (cmd, NM_PPPD_PLUGIN); - - return cmd; -} - -static void -pppoe_fill_defaults (NMSettingPpp *setting) -{ - if (!nm_setting_ppp_get_mtu (setting)) - g_object_set (setting, NM_SETTING_PPP_MTU, (guint32) 1492, NULL); - - if (!nm_setting_ppp_get_mru (setting)) - g_object_set (setting, NM_SETTING_PPP_MRU, (guint32) 1492, NULL); - - g_object_set (setting, - NM_SETTING_PPP_NOAUTH, TRUE, - NM_SETTING_PPP_NODEFLATE, TRUE, - NULL); - - /* FIXME: These commented settings should be set as well, update NMSettingPpp first. */ -#if 0 - setting->noipdefault = TRUE; - setting->default_asyncmap = TRUE; - setting->defaultroute = TRUE; - setting->hide_password = TRUE; - setting->noaccomp = TRUE; - setting->nopcomp = TRUE; - setting->novj = TRUE; - setting->novjccomp = TRUE; -#endif -} - -gboolean -nm_ppp_manager_start (NMPPPManager *manager, - NMActRequest *req, - const char *ppp_name, - guint32 timeout_secs, - guint baud_override, - GError **err) -{ - NMPPPManagerPrivate *priv; - NMConnection *connection; - NMSettingPpp *s_ppp; - gs_unref_object NMSettingPpp *s_ppp_free = NULL; - NMSettingPppoe *pppoe_setting; - NMSettingAdsl *adsl_setting; - NMCmdLine *ppp_cmd; - char *cmd_str; - struct stat st; - - g_return_val_if_fail (NM_IS_PPP_MANAGER (manager), FALSE); - g_return_val_if_fail (NM_IS_ACT_REQUEST (req), FALSE); - - priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - -#if !WITH_PPP - /* PPP support disabled */ - g_set_error_literal (err, - NM_MANAGER_ERROR, - NM_MANAGER_ERROR_FAILED, - "PPP support is not enabled."); - return FALSE; -#endif - - priv->pid = 0; - - /* Make sure /dev/ppp exists (bgo #533064) */ - if (stat ("/dev/ppp", &st) || !S_ISCHR (st.st_mode)) - nm_utils_modprobe (NULL, FALSE, "ppp_generic", NULL); - - connection = nm_act_request_get_applied_connection (req); - g_return_val_if_fail (connection, FALSE); - - s_ppp = nm_connection_get_setting_ppp (connection); - if (!s_ppp) { - /* If the PPP settings are all default we may not have a PPP setting yet, - * so just make a default one here. - */ - s_ppp = s_ppp_free = NM_SETTING_PPP (nm_setting_ppp_new ()); - } - - pppoe_setting = nm_connection_get_setting_pppoe (connection); - if (pppoe_setting) { - /* We can't modify the applied connection's setting, make a copy */ - if (!s_ppp_free) - s_ppp = s_ppp_free = NM_SETTING_PPP (nm_setting_duplicate ((NMSetting *) s_ppp)); - pppoe_fill_defaults (s_ppp); - } - - adsl_setting = (NMSettingAdsl *) nm_connection_get_setting (connection, NM_TYPE_SETTING_ADSL); - - ppp_cmd = create_pppd_cmd_line (manager, s_ppp, pppoe_setting, adsl_setting, ppp_name, baud_override, err); - if (!ppp_cmd) - goto out; - - g_ptr_array_add (ppp_cmd->array, NULL); - - _LOGI ("starting PPP connection"); - - cmd_str = nm_cmd_line_to_str (ppp_cmd); - _LOGD ("command line: %s", cmd_str); - g_free (cmd_str); - - priv->pid = 0; - if (!g_spawn_async (NULL, (char **) ppp_cmd->array->pdata, NULL, - G_SPAWN_DO_NOT_REAP_CHILD, - nm_utils_setpgid, NULL, - &priv->pid, err)) { - goto out; - } - - _LOGI ("pppd started with pid %d", priv->pid); - - priv->ppp_watch_id = g_child_watch_add (priv->pid, (GChildWatchFunc) ppp_watch_cb, manager); - priv->ppp_timeout_handler = g_timeout_add_seconds (timeout_secs, pppd_timed_out, manager); - priv->act_req = g_object_ref (req); - -out: - if (ppp_cmd) - nm_cmd_line_destroy (ppp_cmd); - - return priv->pid > 0; -} - -static void -_ppp_kill (NMPPPManager *manager) -{ - NMPPPManagerPrivate *priv; - - g_return_if_fail (NM_IS_PPP_MANAGER (manager)); - - priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - - if (priv->pid) { - nm_utils_kill_child_async (priv->pid, SIGTERM, LOGD_PPP, "pppd", 2000, NULL, NULL); - priv->pid = 0; - } -} - -static void -_ppp_cleanup (NMPPPManager *manager) -{ - NMPPPManagerPrivate *priv; - - g_return_if_fail (NM_IS_PPP_MANAGER (manager)); - - priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - - cancel_get_secrets (manager); - - nm_clear_g_source (&priv->monitor_id); - - if (priv->monitor_fd >= 0) { - /* Get the stats one last time */ - monitor_cb (manager); - close (priv->monitor_fd); - priv->monitor_fd = -1; - } - - nm_clear_g_source (&priv->ppp_timeout_handler); - nm_clear_g_source (&priv->ppp_watch_id); -} - -/***********************************************************/ - -typedef struct { - NMPPPManager *manager; - GSimpleAsyncResult *result; - GCancellable *cancellable; -} StopContext; - -static void -stop_context_complete (StopContext *ctx) -{ - if (ctx->cancellable) - g_object_unref (ctx->cancellable); - g_simple_async_result_complete_in_idle (ctx->result); - g_object_unref (ctx->result); - g_object_unref (ctx->manager); - g_slice_free (StopContext, ctx); -} - -static gboolean -stop_context_complete_if_cancelled (StopContext *ctx) -{ - GError *error = NULL; - - if (g_cancellable_set_error_if_cancelled (ctx->cancellable, &error)) { - g_simple_async_result_take_error (ctx->result, error); - stop_context_complete (ctx); - return TRUE; - } - return FALSE; -} - -gboolean -nm_ppp_manager_stop_finish (NMPPPManager *manager, - GAsyncResult *res, - GError **error) -{ - return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error); -} - -static void -kill_child_ready (pid_t pid, - gboolean success, - int child_status, - StopContext *ctx) -{ - if (stop_context_complete_if_cancelled (ctx)) - return; - stop_context_complete (ctx); -} - -void -nm_ppp_manager_stop (NMPPPManager *manager, - GCancellable *cancellable, - GAsyncReadyCallback callback, - gpointer user_data) -{ - NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); - StopContext *ctx; - - ctx = g_slice_new0 (StopContext); - ctx->manager = g_object_ref (manager); - ctx->result = g_simple_async_result_new (G_OBJECT (manager), - callback, - user_data, - nm_ppp_manager_stop); - - /* Setup cancellable */ - ctx->cancellable = cancellable ? g_object_ref (cancellable) : NULL; - if (stop_context_complete_if_cancelled (ctx)) - return; - - /* Cleanup internals */ - _ppp_cleanup (manager); - - /* If no pppd running, we're done */ - if (!priv->pid) { - stop_context_complete (ctx); - return; - } - - /* No cancellable operation, so just wait until it returns always */ - nm_utils_kill_child_async (priv->pid, - SIGTERM, - LOGD_PPP, - "pppd", - 2000, - (NMUtilsKillChildAsyncCb) kill_child_ready, - ctx); - priv->pid = 0; -} |