/* -*- 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 Red Hat, Inc. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef aligned_u64 #define aligned_u64 unsigned long long __attribute__((aligned(8))) #endif #include #include "NetworkManager.h" #include "nm-glib-compat.h" #include "nm-ppp-manager.h" #include "nm-setting-connection.h" #include "nm-setting-ppp.h" #include "nm-setting-pppoe.h" #include "nm-setting-gsm.h" #include "nm-setting-cdma.h" #include "nm-dbus-manager.h" #include "nm-utils.h" #include "nm-marshal.h" static void impl_ppp_manager_need_secrets (NMPPPManager *manager, DBusGMethodInvocation *context); static gboolean impl_ppp_manager_set_state (NMPPPManager *manager, guint32 state, GError **err); static gboolean impl_ppp_manager_set_ip4_config (NMPPPManager *manager, GHashTable *config, GError **err); #include "nm-ppp-manager-glue.h" #define NM_PPPD_PLUGIN PLUGINDIR "/nm-pppd-plugin.so" #define NM_PPP_WAIT_PPPD 15 /* 15 seconds */ #define PPP_MANAGER_SECRET_TRIES "ppp-manager-secret-tries" typedef struct { GPid pid; NMDBusManager *dbus_manager; char *dbus_path; char *parent_iface; NMActRequest *act_req; DBusGMethodInvocation *pending_secrets_context; guint32 ppp_watch_id; guint32 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, G_TYPE_OBJECT) enum { STATE_CHANGED, IP4_CONFIG, STATS, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = { 0 }; enum { PROP_0, PROP_PARENT_IFACE, LAST_PROP }; typedef enum { NM_PPP_MANAGER_ERROR_UNKOWN } NMPPPManagerError; GQuark nm_ppp_manager_error_quark (void) { static GQuark quark; if (!quark) quark = g_quark_from_static_string ("nm_ppp_manager_error"); return quark; } static void nm_ppp_manager_init (NMPPPManager *manager) { } static GObject * constructor (GType type, guint n_construct_params, GObjectConstructParam *construct_params) { GObject *object; NMPPPManagerPrivate *priv; DBusGConnection *connection; static guint32 counter = 0; object = G_OBJECT_CLASS (nm_ppp_manager_parent_class)->constructor (type, n_construct_params, construct_params); if (!object) return NULL; priv = NM_PPP_MANAGER_GET_PRIVATE (object); priv->dbus_manager = nm_dbus_manager_get (); if (!priv->dbus_manager) { g_object_unref (object); return NULL; } connection = nm_dbus_manager_get_connection (priv->dbus_manager); priv->dbus_path = g_strdup_printf (NM_DBUS_PATH "/PPP/%d", counter++); dbus_g_connection_register_g_object (connection, priv->dbus_path, object); return object; } static void dispose (GObject *object) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (object); nm_ppp_manager_stop (NM_PPP_MANAGER (object)); g_object_unref (priv->act_req); g_object_unref (priv->dbus_manager); 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: if (priv->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; } } static void nm_ppp_manager_class_init (NMPPPManagerClass *manager_class) { GObjectClass *object_class = G_OBJECT_CLASS (manager_class); g_type_class_add_private (manager_class, sizeof (NMPPPManagerPrivate)); object_class->constructor = constructor; 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, "ParentIface", "Parent interface", NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); /* signals */ signals[STATE_CHANGED] = g_signal_new ("state-changed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (NMPPPManagerClass, state_changed), NULL, NULL, g_cclosure_marshal_VOID__UINT, 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, _nm_marshal_VOID__STRING_OBJECT, G_TYPE_NONE, 2, G_TYPE_STRING, 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, _nm_marshal_VOID__UINT_UINT, G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_UINT); dbus_g_object_type_install_info (G_TYPE_FROM_CLASS (manager_class), &dbus_glib_nm_ppp_manager_object_info); } 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 ifpppstatsreq req; memset (&req, 0, sizeof (req)); req.stats_ptr = (caddr_t) &req.stats; strncpy (req.ifr__name, priv->ip_iface, sizeof (req.ifr__name)); if (ioctl (priv->monitor_fd, SIOCGPPPSTATS, &req) < 0) nm_warning ("Could not read ppp stats: %s", strerror (errno)); else g_signal_emit (manager, signals[STATS], 0, req.stats.p.ppp_ibytes, req.stats.p.ppp_obytes); return TRUE; } static void monitor_stats (NMPPPManager *manager) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); priv->monitor_fd = socket (AF_INET, SOCK_DGRAM, 0); if (priv->monitor_fd > 0) priv->monitor_id = g_timeout_add_seconds (5, monitor_cb, manager); else nm_warning ("Could not open pppd monitor: %s", strerror (errno)); } /*******************************************/ static void remove_timeout_handler (NMPPPManager *manager) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); if (priv->ppp_timeout_handler) { g_source_remove (priv->ppp_timeout_handler); priv->ppp_timeout_handler = 0; } } static void impl_ppp_manager_need_secrets (NMPPPManager *manager, DBusGMethodInvocation *context) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); NMConnection *connection; NMSettingConnection *s_con; const char *connection_type; const char *setting_name; guint32 tries; GPtrArray *hints = NULL; const char *hint1 = NULL, *hint2 = NULL; connection = nm_act_request_get_connection (priv->act_req); s_con = NM_SETTING_CONNECTION (nm_connection_get_setting (connection, NM_TYPE_SETTING_CONNECTION)); g_assert (s_con); connection_type = nm_setting_connection_get_connection_type (s_con); g_assert (connection_type); nm_connection_clear_secrets (connection); setting_name = nm_connection_need_secrets (connection, &hints); if (!setting_name) { NMSetting *setting; setting = nm_connection_get_setting_by_name (connection, connection_type); if (setting) { const char *username = NULL; const char *password = NULL; /* FIXME: push this down to the settings and keep PPP manager generic */ 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_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)); } /* If secrets are not required, send the existing username and password * back to the PPP plugin immediately. */ priv->pending_secrets_context = context; nm_ppp_manager_update_secrets (manager, priv->parent_iface, username ? username : "", password ? password : "", NULL); } else { GError *err = NULL; g_set_error (&err, NM_PPP_MANAGER_ERROR, NM_PPP_MANAGER_ERROR_UNKOWN, "Missing type-specific setting; no secrets could be found."); nm_warning ("%s", err->message); dbus_g_method_return_error (context, err); } return; } /* Extract hints */ if (hints) { if (hints->len > 0) hint1 = g_ptr_array_index (hints, 0); if (hints->len > 1) hint2 = g_ptr_array_index (hints, 1); } tries = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (connection), PPP_MANAGER_SECRET_TRIES)); /* Only ask for completely new secrets after retrying them once; some PPP * servers (T-Mobile USA) appear to ask a few times when they actually don't * even care what you pass back. */ nm_act_request_get_secrets (priv->act_req, setting_name, tries > 1 ? TRUE : FALSE, SECRETS_CALLER_PPP, hint1, hint2); g_object_set_data (G_OBJECT (connection), PPP_MANAGER_SECRET_TRIES, GUINT_TO_POINTER (++tries)); priv->pending_secrets_context = context; if (hints) g_ptr_array_free (hints, TRUE); } static gboolean impl_ppp_manager_set_state (NMPPPManager *manager, guint32 state, GError **err) { g_signal_emit (manager, signals[STATE_CHANGED], 0, state); return TRUE; } static gboolean impl_ppp_manager_set_ip4_config (NMPPPManager *manager, GHashTable *config_hash, GError **err) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); NMConnection *connection; NMSettingPPP *s_ppp; NMIP4Config *config; NMIP4Address *addr; GValue *val; int i; nm_info ("PPP manager(IP Config Get) reply received."); remove_timeout_handler (manager); config = nm_ip4_config_new (); addr = nm_ip4_address_new (); nm_ip4_address_set_prefix (addr, 32); val = (GValue *) g_hash_table_lookup (config_hash, NM_PPP_IP4_CONFIG_GATEWAY); if (val) { nm_ip4_address_set_gateway (addr, g_value_get_uint (val)); nm_ip4_config_set_ptp_address (config, g_value_get_uint (val)); } val = (GValue *) g_hash_table_lookup (config_hash, NM_PPP_IP4_CONFIG_ADDRESS); if (val) nm_ip4_address_set_address (addr, g_value_get_uint (val)); val = (GValue *) g_hash_table_lookup (config_hash, NM_PPP_IP4_CONFIG_PREFIX); if (val) nm_ip4_address_set_prefix (addr, g_value_get_uint (val)); if (nm_ip4_address_get_address (addr) && nm_ip4_address_get_prefix (addr)) { nm_ip4_config_take_address (config, addr); } else { nm_warning ("%s: invalid IPv4 address received!", __func__); nm_ip4_address_unref (addr); goto out; } val = (GValue *) g_hash_table_lookup (config_hash, NM_PPP_IP4_CONFIG_DNS); if (val) { GArray *dns = (GArray *) g_value_get_boxed (val); for (i = 0; i < dns->len; i++) nm_ip4_config_add_nameserver (config, g_array_index (dns, guint, i)); } val = (GValue *) g_hash_table_lookup (config_hash, NM_PPP_IP4_CONFIG_WINS); if (val) { GArray *wins = (GArray *) g_value_get_boxed (val); for (i = 0; i < wins->len; i++) nm_ip4_config_add_wins (config, g_array_index (wins, guint, i)); } val = (GValue *) g_hash_table_lookup (config_hash, NM_PPP_IP4_CONFIG_INTERFACE); if (!val || !G_VALUE_HOLDS_STRING (val)) { nm_warning ("No interface"); goto out; } priv->ip_iface = g_value_dup_string (val); /* Got successful IP4 config; obviously the secrets worked */ connection = nm_act_request_get_connection (priv->act_req); g_assert (connection); g_object_set_data (G_OBJECT (connection), PPP_MANAGER_SECRET_TRIES, NULL); /* Merge in custom MTU */ s_ppp = (NMSettingPPP *) nm_connection_get_setting (connection, NM_TYPE_SETTING_PPP); if (s_ppp) { guint32 mtu = nm_setting_ppp_get_mtu (s_ppp); if (mtu) nm_ip4_config_set_mtu (config, mtu); } /* Push the IP4 config up to the device */ g_signal_emit (manager, signals[IP4_CONFIG], 0, priv->ip_iface, config); monitor_stats (manager); out: g_object_unref (config); return TRUE; } /*******************************************/ 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 inline const char * nm_find_pppd (void) { static const char *pppd_binary_paths[] = { "/usr/local/sbin/pppd", "/usr/sbin/pppd", "/sbin/pppd", NULL }; const char **pppd_binary = pppd_binary_paths; while (*pppd_binary != NULL) { if (g_file_test (*pppd_binary, G_FILE_TEST_EXISTS)) break; pppd_binary++; } return *pppd_binary; } 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"; } nm_warning ("ppp 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)) nm_warning ("ppp pid %d stopped unexpectedly with signal %d", priv->pid, WSTOPSIG (status)); else if (WIFSIGNALED (status)) nm_warning ("ppp pid %d died with signal %d", priv->pid, WTERMSIG (status)); else nm_warning ("ppp pid %d died from an unknown cause", priv->pid); nm_debug ("ppp pid %d cleaned up", priv->pid); priv->pid = 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); nm_warning ("Looks like pppd didn't initialize our dbus module"); nm_ppp_manager_stop (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, const char *ppp_name, GError **err) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (self); const char *ppp_binary; NMCmdLine *cmd; const char *ppp_debug; ppp_binary = nm_find_pppd (); if (!ppp_binary) { g_set_error (err, NM_PPP_MANAGER_ERROR, NM_PPP_MANAGER_ERROR, "Could not find ppp binary."); return NULL; } /* Create pppd command line */ cmd = nm_cmd_line_new (); nm_cmd_line_add_string (cmd, ppp_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"); ppp_debug = getenv ("NM_PPP_DEBUG"); 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 { 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)); /* 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_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)); nm_cmd_line_add_string (cmd, "ipparam"); nm_cmd_line_add_string (cmd, priv->dbus_path); nm_cmd_line_add_string (cmd, "plugin"); nm_cmd_line_add_string (cmd, NM_PPPD_PLUGIN); return cmd; } static void pppd_child_setup (gpointer user_data G_GNUC_UNUSED) { /* We are in the child process at this point */ pid_t pid = getpid (); setpgid (pid, pid); } 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); if (!nm_setting_ppp_get_lcp_echo_interval (setting)) g_object_set (setting, NM_SETTING_PPP_LCP_ECHO_INTERVAL, (guint32) 20, NULL); if (!nm_setting_ppp_get_lcp_echo_failure (setting)) g_object_set (setting, NM_SETTING_PPP_LCP_ECHO_FAILURE, (guint32) 3, 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, GError **err) { NMPPPManagerPrivate *priv; NMConnection *connection; NMSettingPPP *ppp_setting; NMSettingPPPOE *pppoe_setting; NMCmdLine *ppp_cmd; char *cmd_str; struct stat st; int ignored; g_return_val_if_fail (NM_IS_PPP_MANAGER (manager), FALSE); g_return_val_if_fail (NM_IS_ACT_REQUEST (req), FALSE); /* Make sure /dev/ppp exists (bgo #533064) */ if (stat ("/dev/ppp", &st) || !S_ISCHR (st.st_mode)) ignored = system ("/sbin/modprobe ppp_generic"); connection = nm_act_request_get_connection (req); ppp_setting = NM_SETTING_PPP (nm_connection_get_setting (connection, NM_TYPE_SETTING_PPP)); g_return_val_if_fail (ppp_setting != NULL, FALSE); pppoe_setting = (NMSettingPPPOE *) nm_connection_get_setting (connection, NM_TYPE_SETTING_PPPOE); if (pppoe_setting) pppoe_fill_defaults (ppp_setting); ppp_cmd = create_pppd_cmd_line (manager, ppp_setting, pppoe_setting, ppp_name, err); if (!ppp_cmd) return FALSE; g_ptr_array_add (ppp_cmd->array, NULL); priv = NM_PPP_MANAGER_GET_PRIVATE (manager); nm_info ("Starting pppd connection"); cmd_str = nm_cmd_line_to_str (ppp_cmd); nm_debug ("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, pppd_child_setup, NULL, &priv->pid, err)) { goto out; } nm_debug ("ppp 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 (NM_PPP_WAIT_PPPD, 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; } void nm_ppp_manager_update_secrets (NMPPPManager *manager, const char *device, const char *username, const char *password, const char *error_message) { NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (manager); g_return_if_fail (NM_IS_PPP_MANAGER (manager)); g_return_if_fail (device != NULL); g_return_if_fail (priv->pending_secrets_context != NULL); if (error_message) { g_return_if_fail (username == NULL); g_return_if_fail (password == NULL); } else { g_return_if_fail (username != NULL); g_return_if_fail (password != NULL); } if (error_message) { GError *err = NULL; g_set_error (&err, NM_PPP_MANAGER_ERROR, NM_PPP_MANAGER_ERROR_UNKOWN, "%s", error_message); nm_warning ("%s", error_message); dbus_g_method_return_error (priv->pending_secrets_context, err); g_error_free (err); } else { /* 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-util just to parse this. So instead, let's just send what it needs */ dbus_g_method_return (priv->pending_secrets_context, username, password); } priv->pending_secrets_context = NULL; } static gboolean ensure_killed (gpointer data) { int pid = GPOINTER_TO_INT (data); if (kill (pid, 0) == 0) kill (pid, SIGKILL); /* ensure the child is reaped */ nm_debug ("waiting for ppp pid %d to exit", pid); waitpid (pid, NULL, 0); nm_debug ("ppp pid %d cleaned up", pid); return FALSE; } void nm_ppp_manager_stop (NMPPPManager *manager) { NMPPPManagerPrivate *priv; g_return_if_fail (NM_IS_PPP_MANAGER (manager)); priv = NM_PPP_MANAGER_GET_PRIVATE (manager); if (priv->monitor_id) { g_source_remove (priv->monitor_id); priv->monitor_id = 0; } if (priv->monitor_fd) { /* Get the stats one last time */ monitor_cb (manager); close (priv->monitor_fd); priv->monitor_fd = 0; } if (priv->ppp_timeout_handler) { g_source_remove (priv->ppp_timeout_handler); priv->ppp_timeout_handler = 0; } if (priv->ppp_watch_id) { g_source_remove (priv->ppp_watch_id); priv->ppp_watch_id = 0; } if (priv->pid) { if (kill (priv->pid, SIGTERM) == 0) g_timeout_add_seconds (2, ensure_killed, GINT_TO_POINTER (priv->pid)); else { kill (priv->pid, SIGKILL); /* ensure the child is reaped */ nm_debug ("waiting for ppp pid %d to exit", priv->pid); waitpid (priv->pid, NULL, 0); nm_debug ("ppp pid %d cleaned up", priv->pid); } priv->pid = 0; } }