diff options
author | Thomas Haller <thaller@redhat.com> | 2016-11-21 00:38:45 +0100 |
---|---|---|
committer | Thomas Haller <thaller@redhat.com> | 2016-11-21 14:07:47 +0100 |
commit | a65762ca332ee9ba5b80e66c901e5e82bc90f135 (patch) | |
tree | 00c29ee1695a3940db0fbb85347c9749506e5db0 /src/ppp | |
parent | 8c7f5e2653dcffff5f8248501192a9f54dc45ae1 (diff) | |
download | NetworkManager-a65762ca332ee9ba5b80e66c901e5e82bc90f135.tar.gz |
build: rename "src/ppp-manager" to "src/ppp"
The ppp directory does not only contain the manager
instance, but various files related to ppp.
Rename.
Diffstat (limited to 'src/ppp')
-rw-r--r-- | src/ppp/nm-ppp-manager.c | 1257 | ||||
-rw-r--r-- | src/ppp/nm-ppp-manager.h | 58 | ||||
-rw-r--r-- | src/ppp/nm-ppp-status.h | 43 | ||||
-rw-r--r-- | src/ppp/nm-pppd-plugin.c | 417 | ||||
-rw-r--r-- | src/ppp/nm-pppd-plugin.h | 34 |
5 files changed, 1809 insertions, 0 deletions
diff --git a/src/ppp/nm-ppp-manager.c b/src/ppp/nm-ppp-manager.c new file mode 100644 index 0000000000..9b212a1acb --- /dev/null +++ b/src/ppp/nm-ppp-manager.c @@ -0,0 +1,1257 @@ +/* -*- 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 "nm-ppp-manager.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-platform.h" +#include "nm-core-internal.h" +#include "nm-act-request.h" +#include "nm-ip4-config.h" +#include "nm-ip6-config.h" +#include "nm-pppd-plugin.h" +#include "nm-ppp-status.h" + +#include "nmdbus-ppp-manager.h" + +#define NM_PPPD_PLUGIN PPPD_PLUGIN_DIR "/nm-pppd-plugin.so" +#define PPP_MANAGER_SECRET_TRIES "ppp-manager-secret-tries" + +/*****************************************************************************/ + +enum { + STATE_CHANGED, + IP4_CONFIG, + IP6_CONFIG, + STATS, + + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +NM_GOBJECT_PROPERTIES_DEFINE_BASE ( + PROP_PARENT_IFACE, +); + +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; + +struct _NMPPPManager { + NMExportedObject parent; + NMPPPManagerPrivate _priv; +}; + +struct _NMPPPManagerClass { + NMExportedObjectClass parent; +}; + +G_DEFINE_TYPE (NMPPPManager, nm_ppp_manager, NM_TYPE_EXPORTED_OBJECT) + +#define NM_PPP_MANAGER_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMPPPManager, NM_IS_PPP_MANAGER) + +/*****************************************************************************/ + +#define _NMLOG_DOMAIN LOGD_PPP +#define _NMLOG(level, ...) __NMLOG_DEFAULT (level, _NMLOG_DOMAIN, "ppp-manager", __VA_ARGS__) + +/*****************************************************************************/ + +static void _ppp_cleanup (NMPPPManager *manager); +static void _ppp_kill (NMPPPManager *manager); + +/*****************************************************************************/ + +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, 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); +} + +/*****************************************************************************/ + +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; +} + +/*****************************************************************************/ + +static void +get_property (GObject *object, guint prop_id, + GValue *value, GParamSpec *pspec) +{ + NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE ((NMPPPManager *) 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 +set_property (GObject *object, guint prop_id, + const GValue *value, GParamSpec *pspec) +{ + NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE ((NMPPPManager *) 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 +nm_ppp_manager_init (NMPPPManager *manager) +{ + NM_PPP_MANAGER_GET_PRIVATE (manager)->monitor_fd = -1; +} + +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 void +dispose (GObject *object) +{ + NMPPPManager *self = (NMPPPManager *) object; + NMPPPManagerPrivate *priv = NM_PPP_MANAGER_GET_PRIVATE (self); + + _ppp_cleanup (self); + _ppp_kill (self); + + 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 ((NMPPPManager *) object); + + g_free (priv->ip_iface); + g_free (priv->parent_iface); + + G_OBJECT_CLASS (nm_ppp_manager_parent_class)->finalize (object); +} + +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); + + object_class->dispose = dispose; + object_class->finalize = finalize; + object_class->get_property = get_property; + object_class->set_property = set_property; + + exported_object_class->export_path = NM_DBUS_PATH "/PPP/%u"; + exported_object_class->export_on_construction = TRUE; + + obj_properties[PROP_PARENT_IFACE] = + g_param_spec_string (NM_PPP_MANAGER_PARENT_IFACE, "", "", + NULL, + G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | + G_PARAM_STATIC_STRINGS); + + g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties); + + signals[STATE_CHANGED] = + g_signal_new (NM_PPP_MANAGER_STATE_CHANGED, + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST, + 0, + 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, + 0, + 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, + 0, + 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, + 0, + 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); +} + diff --git a/src/ppp/nm-ppp-manager.h b/src/ppp/nm-ppp-manager.h new file mode 100644 index 0000000000..12748176a3 --- /dev/null +++ b/src/ppp/nm-ppp-manager.h @@ -0,0 +1,58 @@ +/* -*- 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 - 2010 Red Hat, Inc. + */ + +#ifndef __NETWORKMANAGER_PPP_MANAGER_H__ +#define __NETWORKMANAGER_PPP_MANAGER_H__ + +#define NM_TYPE_PPP_MANAGER (nm_ppp_manager_get_type ()) +#define NM_PPP_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_PPP_MANAGER, NMPPPManager)) +#define NM_PPP_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_PPP_MANAGER, NMPPPManagerClass)) +#define NM_IS_PPP_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_PPP_MANAGER)) +#define NM_IS_PPP_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_PPP_MANAGER)) +#define NM_PPP_MANAGER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_PPP_MANAGER, NMPPPManagerClass)) + +#define NM_PPP_MANAGER_PARENT_IFACE "parent-iface" + +#define NM_PPP_MANAGER_STATE_CHANGED "state-changed" + +typedef struct _NMPPPManager NMPPPManager; +typedef struct _NMPPPManagerClass NMPPPManagerClass; + +GType nm_ppp_manager_get_type (void); + +NMPPPManager *nm_ppp_manager_new (const char *iface); + +gboolean nm_ppp_manager_start (NMPPPManager *manager, + NMActRequest *req, + const char *ppp_name, + guint32 timeout_secs, + guint baud_override, + GError **err); + +void nm_ppp_manager_stop (NMPPPManager *manager, + GCancellable *cancellable, + GAsyncReadyCallback callback, + gpointer user_data); +gboolean nm_ppp_manager_stop_finish (NMPPPManager *manager, + GAsyncResult *res, + GError **error); + +#endif /* __NETWORKMANAGER_PPP_MANAGER_H__ */ diff --git a/src/ppp/nm-ppp-status.h b/src/ppp/nm-ppp-status.h new file mode 100644 index 0000000000..391b5aa986 --- /dev/null +++ b/src/ppp/nm-ppp-status.h @@ -0,0 +1,43 @@ +/* -*- 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. + */ + +#ifndef __NETWORKMANAGER_PPP_STATUS_H__ +#define __NETWORKMANAGER_PPP_STATUS_H__ + +typedef enum { + NM_PPP_STATUS_UNKNOWN, + + NM_PPP_STATUS_DEAD, + NM_PPP_STATUS_INITIALIZE, + NM_PPP_STATUS_SERIALCONN, + NM_PPP_STATUS_DORMANT, + NM_PPP_STATUS_ESTABLISH, + NM_PPP_STATUS_AUTHENTICATE, + NM_PPP_STATUS_CALLBACK, + NM_PPP_STATUS_NETWORK, + NM_PPP_STATUS_RUNNING, + NM_PPP_STATUS_TERMINATE, + NM_PPP_STATUS_DISCONNECT, + NM_PPP_STATUS_HOLDOFF, + NM_PPP_STATUS_MASTER +} NMPPPStatus; + +#endif /* __NETWORKMANAGER_PPP_STATUS_H__ */ diff --git a/src/ppp/nm-pppd-plugin.c b/src/ppp/nm-pppd-plugin.c new file mode 100644 index 0000000000..9c47c339a3 --- /dev/null +++ b/src/ppp/nm-pppd-plugin.c @@ -0,0 +1,417 @@ +/* -*- 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 <config.h> +#define ___CONFIG_H__ + +#include <string.h> +#include <pppd/pppd.h> +#include <pppd/fsm.h> +#include <pppd/ipcp.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <dlfcn.h> + +#define INET6 +#include <pppd/eui64.h> +#include <pppd/ipv6cp.h> + +#include "nm-default.h" +#include "nm-dbus-interface.h" +#include "nm-pppd-plugin.h" +#include "nm-ppp-status.h" + +int plugin_init (void); + +char pppd_version[] = VERSION; + +static GDBusProxy *proxy = NULL; + +static void +nm_phasechange (void *data, int arg) +{ + NMPPPStatus ppp_status = NM_PPP_STATUS_UNKNOWN; + char *ppp_phase; + + g_return_if_fail (G_IS_DBUS_PROXY (proxy)); + + switch (arg) { + case PHASE_DEAD: + ppp_status = NM_PPP_STATUS_DEAD; + ppp_phase = "dead"; + break; + case PHASE_INITIALIZE: + ppp_status = NM_PPP_STATUS_INITIALIZE; + ppp_phase = "initialize"; + break; + case PHASE_SERIALCONN: + ppp_status = NM_PPP_STATUS_SERIALCONN; + ppp_phase = "serial connection"; + break; + case PHASE_DORMANT: + ppp_status = NM_PPP_STATUS_DORMANT; + ppp_phase = "dormant"; + break; + case PHASE_ESTABLISH: + ppp_status = NM_PPP_STATUS_ESTABLISH; + ppp_phase = "establish"; + break; + case PHASE_AUTHENTICATE: + ppp_status = NM_PPP_STATUS_AUTHENTICATE; + ppp_phase = "authenticate"; + break; + case PHASE_CALLBACK: + ppp_status = NM_PPP_STATUS_CALLBACK; + ppp_phase = "callback"; + break; + case PHASE_NETWORK: + ppp_status = NM_PPP_STATUS_NETWORK; + ppp_phase = "network"; + break; + case PHASE_RUNNING: + ppp_status = NM_PPP_STATUS_RUNNING; + ppp_phase = "running"; + break; + case PHASE_TERMINATE: + ppp_status = NM_PPP_STATUS_TERMINATE; + ppp_phase = "terminate"; + break; + case PHASE_DISCONNECT: + ppp_status = NM_PPP_STATUS_DISCONNECT; + ppp_phase = "disconnect"; + break; + case PHASE_HOLDOFF: + ppp_status = NM_PPP_STATUS_HOLDOFF; + ppp_phase = "holdoff"; + break; + case PHASE_MASTER: + ppp_status = NM_PPP_STATUS_MASTER; + ppp_phase = "master"; + break; + + default: + ppp_phase = "unknown"; + break; + } + + g_message ("nm-ppp-plugin: (%s): status %d / phase '%s'", + __func__, + ppp_status, + ppp_phase); + + if (ppp_status != NM_PPP_STATUS_UNKNOWN) { + g_dbus_proxy_call (proxy, + "SetState", + g_variant_new ("(u)", ppp_status), + G_DBUS_CALL_FLAGS_NONE, -1, + NULL, + NULL, NULL); + } +} + +static void +nm_ip_up (void *data, int arg) +{ + ipcp_options opts = ipcp_gotoptions[0]; + ipcp_options peer_opts = ipcp_hisoptions[0]; + GVariantBuilder builder; + guint32 pppd_made_up_address = htonl (0x0a404040 + ifunit); + + g_return_if_fail (G_IS_DBUS_PROXY (proxy)); + + g_message ("nm-ppp-plugin: (%s): ip-up event", __func__); + + if (!opts.ouraddr) { + g_warning ("nm-ppp-plugin: (%s): didn't receive an internal IP from pppd!", __func__); + nm_phasechange (NULL, PHASE_DEAD); + return; + } + + g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT); + + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_INTERFACE, + g_variant_new_string (ifname)); + + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_ADDRESS, + g_variant_new_uint32 (opts.ouraddr)); + + /* Prefer the peer options remote address first, _unless_ pppd made the + * address up, at which point prefer the local options remote address, + * and if that's not right, use the made-up address as a last resort. + */ + if (peer_opts.hisaddr && (peer_opts.hisaddr != pppd_made_up_address)) { + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_GATEWAY, + g_variant_new_uint32 (peer_opts.hisaddr)); + } else if (opts.hisaddr) { + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_GATEWAY, + g_variant_new_uint32 (opts.hisaddr)); + } else if (peer_opts.hisaddr == pppd_made_up_address) { + /* As a last resort, use the made-up address */ + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_GATEWAY, + g_variant_new_uint32 (peer_opts.ouraddr)); + } + + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_PREFIX, + g_variant_new_uint32 (32)); + + if (opts.dnsaddr[0] || opts.dnsaddr[1]) { + guint32 dns[2]; + int len = 0; + + if (opts.dnsaddr[0]) + dns[len++] = opts.dnsaddr[0]; + if (opts.dnsaddr[1]) + dns[len++] = opts.dnsaddr[1]; + + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_DNS, + g_variant_new_fixed_array (G_VARIANT_TYPE_UINT32, + dns, len, sizeof (guint32))); + } + + if (opts.winsaddr[0] || opts.winsaddr[1]) { + guint32 wins[2]; + int len = 0; + + if (opts.winsaddr[0]) + wins[len++] = opts.winsaddr[0]; + if (opts.winsaddr[1]) + wins[len++] = opts.winsaddr[1]; + + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP4_CONFIG_WINS, + g_variant_new_fixed_array (G_VARIANT_TYPE_UINT32, + wins, len, sizeof (guint32))); + } + + g_message ("nm-ppp-plugin: (%s): sending IPv4 config to NetworkManager...", __func__); + + g_dbus_proxy_call (proxy, + "SetIp4Config", + g_variant_new ("(a{sv})", &builder), + G_DBUS_CALL_FLAGS_NONE, -1, + NULL, + NULL, NULL); +} + +static GVariant * +eui64_to_variant (eui64_t eui) +{ + guint64 iid; + + G_STATIC_ASSERT (sizeof (iid) == sizeof (eui)); + + memcpy (&iid, &eui, sizeof (eui)); + return g_variant_new_uint64 (iid); +} + +static void +nm_ip6_up (void *data, int arg) +{ + ipv6cp_options *ho = &ipv6cp_hisoptions[0]; + ipv6cp_options *go = &ipv6cp_gotoptions[0]; + GVariantBuilder builder; + + g_return_if_fail (G_IS_DBUS_PROXY (proxy)); + + g_message ("nm-ppp-plugin: (%s): ip6-up event", __func__); + + g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT); + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP6_CONFIG_INTERFACE, + g_variant_new_string (ifname)); + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP6_CONFIG_OUR_IID, + eui64_to_variant (go->ourid)); + g_variant_builder_add (&builder, "{sv}", + NM_PPP_IP6_CONFIG_PEER_IID, + eui64_to_variant (ho->hisid)); + + /* DNS is done via DHCPv6 or router advertisements */ + + g_message ("nm-ppp-plugin: (%s): sending IPv6 config to NetworkManager...", __func__); + + g_dbus_proxy_call (proxy, + "SetIp6Config", + g_variant_new ("(a{sv})", &builder), + G_DBUS_CALL_FLAGS_NONE, -1, + NULL, + NULL, NULL); +} + +static int +get_chap_check (void) +{ + return 1; +} + +static int +get_pap_check (void) +{ + return 1; +} + +static int +get_credentials (char *username, char *password) +{ + const char *my_username = NULL; + const char *my_password = NULL; + size_t len; + GVariant *ret; + GError *err = NULL; + + if (!password) { + /* pppd is checking pap support; return 1 for supported */ + g_return_val_if_fail (username, -1); + return 1; + } + + g_return_val_if_fail (username, -1); + g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), -1); + + g_message ("nm-ppp-plugin: (%s): passwd-hook, requesting credentials...", __func__); + + ret = g_dbus_proxy_call_sync (proxy, + "NeedSecrets", + NULL, + G_DBUS_CALL_FLAGS_NONE, -1, + NULL, &err); + if (!ret) { + g_warning ("nm-ppp-plugin: (%s): could not get secrets: %s", + __func__, + err->message); + g_error_free (err); + return -1; + } + + g_message ("nm-ppp-plugin: (%s): got credentials from NetworkManager", __func__); + + g_variant_get (ret, "(&s&s)", &my_username, &my_password); + + if (my_username) { + len = strlen (my_username) + 1; + len = len < MAXNAMELEN ? len : MAXNAMELEN; + + strncpy (username, my_username, len); + username[len - 1] = '\0'; + } + + if (my_password) { + len = strlen (my_password) + 1; + len = len < MAXSECRETLEN ? len : MAXSECRETLEN; + + strncpy (password, my_password, len); + password[len - 1] = '\0'; + } + + g_variant_unref (ret); + + return 1; +} + +static void +nm_exit_notify (void *data, int arg) +{ + g_return_if_fail (G_IS_DBUS_PROXY (proxy)); + + g_message ("nm-ppp-plugin: (%s): cleaning up", __func__); + + g_object_unref (proxy); + proxy = NULL; +} + +static void +add_ip6_notifier (void) +{ + static struct notifier **notifier = NULL; + static gsize load_once = 0; + + if (g_once_init_enter (&load_once)) { + void *handle = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL); + + if (handle) { + notifier = dlsym (handle, "ipv6_up_notifier"); + dlclose (handle); + } + g_once_init_leave (&load_once, 1); + } + if (notifier) + add_notifier (notifier, nm_ip6_up, NULL); + else + g_message ("nm-ppp-plugin: no IPV6CP notifier support; IPv6 not available"); +} + +int +plugin_init (void) +{ + GDBusConnection *bus; + GError *err = NULL; + + nm_g_type_init (); + + g_message ("nm-ppp-plugin: (%s): initializing", __func__); + + bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &err); + if (!bus) { + g_warning ("nm-pppd-plugin: (%s): couldn't connect to system bus: %s", + __func__, err->message); + g_error_free (err); + return -1; + } + + /* NM passes in the object path of the corresponding PPPManager + * object as the 'ipparam' argument to pppd. + */ + proxy = g_dbus_proxy_new_sync (bus, + G_DBUS_PROXY_FLAGS_NONE, + NULL, + NM_DBUS_SERVICE, + ipparam, + NM_DBUS_INTERFACE_PPP, + NULL, &err); + g_object_unref (bus); + + if (!proxy) { + g_warning ("nm-pppd-plugin: (%s): couldn't create D-Bus proxy: %s", + __func__, err->message); + g_error_free (err); + return -1; + } + + chap_passwd_hook = get_credentials; + chap_check_hook = get_chap_check; + pap_passwd_hook = get_credentials; + pap_check_hook = get_pap_check; + + add_notifier (&phasechange, nm_phasechange, NULL); + add_notifier (&ip_up_notifier, nm_ip_up, NULL); + add_notifier (&exitnotify, nm_exit_notify, proxy); + add_ip6_notifier (); + + return 0; +} diff --git a/src/ppp/nm-pppd-plugin.h b/src/ppp/nm-pppd-plugin.h new file mode 100644 index 0000000000..1a2ea09e94 --- /dev/null +++ b/src/ppp/nm-pppd-plugin.h @@ -0,0 +1,34 @@ +/* -*- 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 - 2014 Red Hat, Inc. + */ + +#define NM_DBUS_INTERFACE_PPP "org.freedesktop.NetworkManager.PPP" + +#define NM_PPP_IP4_CONFIG_INTERFACE "interface" +#define NM_PPP_IP4_CONFIG_ADDRESS "address" +#define NM_PPP_IP4_CONFIG_PREFIX "prefix" +#define NM_PPP_IP4_CONFIG_GATEWAY "gateway" +#define NM_PPP_IP4_CONFIG_DNS "dns" +#define NM_PPP_IP4_CONFIG_WINS "wins" + +#define NM_PPP_IP6_CONFIG_INTERFACE "interface" +#define NM_PPP_IP6_CONFIG_OUR_IID "our-iid" +#define NM_PPP_IP6_CONFIG_PEER_IID "peer-iid" + |