diff options
Diffstat (limited to 'src/core/nm-act-request.c')
| -rw-r--r-- | src/core/nm-act-request.c | 542 |
1 files changed, 542 insertions, 0 deletions
diff --git a/src/core/nm-act-request.c b/src/core/nm-act-request.c new file mode 100644 index 0000000000..248b57b861 --- /dev/null +++ b/src/core/nm-act-request.c @@ -0,0 +1,542 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2005 - 2012 Red Hat, Inc. + * Copyright (C) 2007 - 2008 Novell, Inc. + */ + +#include "nm-default.h" + +#include "nm-act-request.h" + +#include <stdlib.h> +#include <sys/wait.h> +#include <unistd.h> + +#include "c-list/src/c-list.h" + +#include "nm-setting-wireless-security.h" +#include "nm-setting-8021x.h" +#include "devices/nm-device.h" +#include "nm-active-connection.h" +#include "settings/nm-settings-connection.h" +#include "nm-libnm-core-intern/nm-auth-subject.h" + +typedef struct { + CList call_ids_lst_head; + NMUtilsShareRules *share_rules; +} NMActRequestPrivate; + +struct _NMActRequest { + NMActiveConnection parent; + NMActRequestPrivate _priv; +}; + +typedef struct { + NMActiveConnectionClass parent; +} NMActRequestClass; + +enum { + PROP_0, + PROP_IP4_CONFIG, + PROP_DHCP4_CONFIG, + PROP_IP6_CONFIG, + PROP_DHCP6_CONFIG, + + LAST_PROP +}; + +G_DEFINE_TYPE(NMActRequest, nm_act_request, NM_TYPE_ACTIVE_CONNECTION) + +#define NM_ACT_REQUEST_GET_PRIVATE(self) _NM_GET_PRIVATE(self, NMActRequest, NM_IS_ACT_REQUEST) + +/*****************************************************************************/ + +NMSettingsConnection * +nm_act_request_get_settings_connection(NMActRequest *req) +{ + g_return_val_if_fail(NM_IS_ACT_REQUEST(req), NULL); + + return nm_active_connection_get_settings_connection(NM_ACTIVE_CONNECTION(req)); +} + +NMConnection * +nm_act_request_get_applied_connection(NMActRequest *req) +{ + g_return_val_if_fail(NM_IS_ACT_REQUEST(req), NULL); + + return nm_active_connection_get_applied_connection(NM_ACTIVE_CONNECTION(req)); +} + +/*****************************************************************************/ + +struct _NMActRequestGetSecretsCallId { + CList call_ids_lst; + NMActRequest * self; + NMActRequestSecretsFunc callback; + gpointer callback_data; + NMSettingsConnectionCallId *call_id; + bool has_ref; +}; + +static void +_get_secrets_call_id_free(NMActRequestGetSecretsCallId *call_id) +{ + nm_assert(call_id); + nm_assert(!c_list_is_linked(&call_id->call_ids_lst)); + + if (call_id->has_ref) + g_object_unref(call_id->self); + g_slice_free(NMActRequestGetSecretsCallId, call_id); +} + +static void +get_secrets_cb(NMSettingsConnection * connection, + NMSettingsConnectionCallId *call_id_s, + const char * agent_username, + const char * setting_name, + GError * error, + gpointer user_data) +{ + NMActRequestGetSecretsCallId *call_id = user_data; + NMActRequestPrivate * priv; + + g_return_if_fail(call_id && call_id->call_id == call_id_s); + g_return_if_fail(NM_IS_ACT_REQUEST(call_id->self)); + + if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) + return; + + priv = NM_ACT_REQUEST_GET_PRIVATE(call_id->self); + + nm_assert(c_list_contains(&priv->call_ids_lst_head, &call_id->call_ids_lst)); + + c_list_unlink(&call_id->call_ids_lst); + + if (call_id->callback) + call_id->callback(call_id->self, call_id, connection, error, call_id->callback_data); + + _get_secrets_call_id_free(call_id); +} + +/** + * nm_act_request_get_secrets: + * @self: + * @ref_self: if %TRUE, the pending call take a reference on @self. + * It also allows you to omit the @self argument in nm_act_request_cancel_secrets(). + * @setting_name: + * @flags: + * @hint: + * @callback: + * @callback_data: + * + * Asynchronously starts the request for secrets. This function cannot + * fail. + * + * The return call-id can be used to cancel the request. You are + * only allowed to cancel a still pending operation (once). + * The callback will always be invoked once, even for canceling + * or disposing of NMActRequest. + * + * Returns: a call-id. + */ +NMActRequestGetSecretsCallId * +nm_act_request_get_secrets(NMActRequest * self, + gboolean ref_self, + const char * setting_name, + NMSecretAgentGetSecretsFlags flags, + const char *const * hints, + NMActRequestSecretsFunc callback, + gpointer callback_data) +{ + NMActRequestPrivate * priv; + NMActRequestGetSecretsCallId *call_id; + NMSettingsConnectionCallId * call_id_s; + NMSettingsConnection * settings_connection; + NMConnection * applied_connection; + + g_return_val_if_fail(NM_IS_ACT_REQUEST(self), NULL); + + priv = NM_ACT_REQUEST_GET_PRIVATE(self); + + settings_connection = nm_act_request_get_settings_connection(self); + applied_connection = nm_act_request_get_applied_connection(self); + + call_id = g_slice_new0(NMActRequestGetSecretsCallId); + call_id->has_ref = ref_self; + call_id->self = ref_self ? g_object_ref(self) : self; + call_id->callback = callback; + call_id->callback_data = callback_data; + c_list_link_tail(&priv->call_ids_lst_head, &call_id->call_ids_lst); + + if (nm_active_connection_get_user_requested(NM_ACTIVE_CONNECTION(self))) + flags |= NM_SECRET_AGENT_GET_SECRETS_FLAG_USER_REQUESTED; + + call_id_s = nm_settings_connection_get_secrets( + settings_connection, + applied_connection, + nm_active_connection_get_subject(NM_ACTIVE_CONNECTION(self)), + setting_name, + flags, + hints, + get_secrets_cb, + call_id); + call_id->call_id = call_id_s; + g_return_val_if_fail(call_id_s, NULL); + return call_id; +} + +static void +_do_cancel_secrets(NMActRequest *self, NMActRequestGetSecretsCallId *call_id, gboolean is_disposing) +{ + NMActRequestPrivate *priv = NM_ACT_REQUEST_GET_PRIVATE(self); + + nm_assert(call_id && call_id->self == self); + nm_assert(c_list_contains(&priv->call_ids_lst_head, &call_id->call_ids_lst)); + + c_list_unlink(&call_id->call_ids_lst); + + nm_settings_connection_cancel_secrets(nm_act_request_get_settings_connection(self), + call_id->call_id); + + if (call_id->callback) { + gs_free_error GError *error = NULL; + + nm_utils_error_set_cancelled(&error, is_disposing, "NMActRequest"); + call_id->callback(self, call_id, NULL, error, call_id->callback_data); + } + + _get_secrets_call_id_free(call_id); +} + +/** + * nm_act_request_cancel_secrets: + * @self: The #NMActRequest. Note that this argument can be %NULL if, and only if + * the call_id was created with @take_ref. + * @call_id: + * + * You are only allowed to cancel the call once, and only before the callback + * is already invoked. Note that cancelling causes the callback to be invoked + * synchronously. + */ +void +nm_act_request_cancel_secrets(NMActRequest *self, NMActRequestGetSecretsCallId *call_id) +{ + g_return_if_fail(call_id); + + if (self) { + g_return_if_fail(NM_IS_ACT_REQUEST(self)); + g_return_if_fail(self == call_id->self); + } else { + g_return_if_fail(call_id->has_ref); + g_return_if_fail(NM_IS_ACT_REQUEST(call_id->self)); + self = call_id->self; + } + + if (!c_list_is_linked(&call_id->call_ids_lst)) + g_return_if_reached(); + + _do_cancel_secrets(self, call_id, FALSE); +} + +void +nm_act_request_clear_secrets(NMActRequest *self) +{ + g_return_if_fail(NM_IS_ACT_REQUEST(self)); + + nm_active_connection_clear_secrets((NMActiveConnection *) self); +} + +/*****************************************************************************/ + +NMUtilsShareRules * +nm_act_request_get_shared(NMActRequest *req) +{ + g_return_val_if_fail(NM_IS_ACT_REQUEST(req), FALSE); + + return NM_ACT_REQUEST_GET_PRIVATE(req)->share_rules; +} + +void +nm_act_request_set_shared(NMActRequest *req, NMUtilsShareRules *rules) +{ + NMActRequestPrivate *priv = NM_ACT_REQUEST_GET_PRIVATE(req); + + g_return_if_fail(NM_IS_ACT_REQUEST(req)); + + if (priv->share_rules == rules) + return; + + if (priv->share_rules) { + nm_utils_share_rules_apply(priv->share_rules, FALSE); + priv->share_rules = NULL; + } + if (rules) { + priv->share_rules = rules; + nm_utils_share_rules_apply(priv->share_rules, TRUE); + } +} + +/*****************************************************************************/ + +static void +device_notify(GObject *object, GParamSpec *pspec, gpointer self) +{ + g_object_notify(self, pspec->name); +} + +static void +device_state_changed(NMActiveConnection *active, + NMDevice * device, + NMDeviceState new_state, + NMDeviceState old_state) +{ + NMActiveConnectionState cur_ac_state = nm_active_connection_get_state(active); + NMActiveConnectionState ac_state = NM_ACTIVE_CONNECTION_STATE_UNKNOWN; + NMActiveConnectionStateReason ac_state_reason = NM_ACTIVE_CONNECTION_STATE_REASON_UNKNOWN; + + /* Decide which device state changes to handle when this active connection + * is not the device's current request. Two cases here: (a) the AC is + * pending and not yet active, and (b) the AC was active but the device is + * entering DISCONNECTED state (which clears the device's current AC before + * emitting the state change signal). + */ + if (NM_ACTIVE_CONNECTION(nm_device_get_act_request(device)) != active) { + /* Some other request is activating; this one must be pending */ + if (new_state >= NM_DEVICE_STATE_PREPARE) + return; + else if (new_state == NM_DEVICE_STATE_DISCONNECTED) { + /* This request hasn't started activating yet; the device is + * disconnecting and cleaning up a previous activation request. + */ + if (cur_ac_state < NM_ACTIVE_CONNECTION_STATE_ACTIVATING) + return; + + /* Catch device disconnections after this request has been active */ + } + + /* All states < DISCONNECTED are fatal and handled */ + } + + /* Set NMActiveConnection state based on the device's state */ + switch (new_state) { + case NM_DEVICE_STATE_PREPARE: + case NM_DEVICE_STATE_CONFIG: + case NM_DEVICE_STATE_NEED_AUTH: + case NM_DEVICE_STATE_IP_CONFIG: + case NM_DEVICE_STATE_IP_CHECK: + case NM_DEVICE_STATE_SECONDARIES: + ac_state = NM_ACTIVE_CONNECTION_STATE_ACTIVATING; + break; + case NM_DEVICE_STATE_ACTIVATED: + ac_state = NM_ACTIVE_CONNECTION_STATE_ACTIVATED; + + g_signal_connect(device, + "notify::" NM_DEVICE_IP4_CONFIG, + G_CALLBACK(device_notify), + active); + g_signal_connect(device, + "notify::" NM_DEVICE_DHCP4_CONFIG, + G_CALLBACK(device_notify), + active); + g_signal_connect(device, + "notify::" NM_DEVICE_IP6_CONFIG, + G_CALLBACK(device_notify), + active); + g_signal_connect(device, + "notify::" NM_DEVICE_DHCP6_CONFIG, + G_CALLBACK(device_notify), + active); + break; + case NM_DEVICE_STATE_DEACTIVATING: + ac_state = NM_ACTIVE_CONNECTION_STATE_DEACTIVATING; + break; + case NM_DEVICE_STATE_FAILED: + case NM_DEVICE_STATE_DISCONNECTED: + case NM_DEVICE_STATE_UNMANAGED: + case NM_DEVICE_STATE_UNAVAILABLE: + ac_state = NM_ACTIVE_CONNECTION_STATE_DEACTIVATED; + ac_state_reason = NM_ACTIVE_CONNECTION_STATE_REASON_DEVICE_DISCONNECTED; + + g_signal_handlers_disconnect_by_func(device, G_CALLBACK(device_notify), active); + break; + default: + break; + } + + if (ac_state == NM_ACTIVE_CONNECTION_STATE_DEACTIVATED + || ac_state == NM_ACTIVE_CONNECTION_STATE_UNKNOWN) + nm_active_connection_set_default(active, AF_UNSPEC, FALSE); + + nm_active_connection_set_state(active, ac_state, ac_state_reason); +} + +static void +master_failed(NMActiveConnection *self) +{ + NMDevice * device; + NMDeviceState device_state; + + /* If the connection has an active device, fail it */ + device = nm_active_connection_get_device(self); + if (device) { + device_state = nm_device_get_state(device); + if (nm_device_is_activating(device) || (device_state == NM_DEVICE_STATE_ACTIVATED)) { + nm_device_queue_state(device, + NM_DEVICE_STATE_FAILED, + NM_DEVICE_STATE_REASON_DEPENDENCY_FAILED); + return; + } + } + + /* If no device, or the device wasn't active, just move to deactivated state */ + nm_active_connection_set_state(self, + NM_ACTIVE_CONNECTION_STATE_DEACTIVATED, + NM_ACTIVE_CONNECTION_STATE_REASON_DEPENDENCY_FAILED); +} + +/*****************************************************************************/ + +static void +get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) +{ + NMActiveConnection *active; + NMDevice * device; + char * name; + + switch (prop_id) { + case PROP_IP4_CONFIG: + name = NM_DEVICE_IP4_CONFIG; + break; + case PROP_DHCP4_CONFIG: + name = NM_DEVICE_DHCP4_CONFIG; + break; + case PROP_IP6_CONFIG: + name = NM_DEVICE_IP6_CONFIG; + break; + case PROP_DHCP6_CONFIG: + name = NM_DEVICE_DHCP6_CONFIG; + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); + return; + } + + active = NM_ACTIVE_CONNECTION(object); + device = nm_active_connection_get_device(active); + if (!device + || !NM_IN_SET(nm_active_connection_get_state(active), + NM_ACTIVE_CONNECTION_STATE_ACTIVATED, + NM_ACTIVE_CONNECTION_STATE_DEACTIVATING)) { + g_value_set_string(value, NULL); + return; + } + + g_object_get_property(G_OBJECT(device), name, value); +} + +static void +nm_act_request_init(NMActRequest *req) +{ + NMActRequestPrivate *priv = NM_ACT_REQUEST_GET_PRIVATE(req); + + c_list_init(&priv->call_ids_lst_head); +} + +/** + * nm_act_request_new: + * + * @settings_connection: (allow-none): the connection to activate @device with + * @applied_connection: (allow-none): the applied connection + * @specific_object: the object path of the specific object (ie, Wi-Fi access point, + * etc) that will be used to activate @connection and @device + * @subject: the #NMAuthSubject representing the requestor of the activation + * @activation_type: the #NMActivationType + * @activation_reason: the reason for activation + * @initial_state_flags: the initial state flags. + * @device: the device/interface to configure according to @connection + * + * Creates a new device-based activation request. If an applied connection is + * supplied, it shall not be modified by the caller afterwards. + * + * Returns: the new activation request on success, %NULL on error. + */ +NMActRequest * +nm_act_request_new(NMSettingsConnection * settings_connection, + NMConnection * applied_connection, + const char * specific_object, + NMAuthSubject * subject, + NMActivationType activation_type, + NMActivationReason activation_reason, + NMActivationStateFlags initial_state_flags, + NMDevice * device) +{ + g_return_val_if_fail(!settings_connection || NM_IS_SETTINGS_CONNECTION(settings_connection), + NULL); + g_return_val_if_fail(NM_IS_DEVICE(device), NULL); + g_return_val_if_fail(NM_IS_AUTH_SUBJECT(subject), NULL); + + return g_object_new(NM_TYPE_ACT_REQUEST, + NM_ACTIVE_CONNECTION_INT_APPLIED_CONNECTION, + applied_connection, + NM_ACTIVE_CONNECTION_INT_SETTINGS_CONNECTION, + settings_connection, + NM_ACTIVE_CONNECTION_INT_DEVICE, + device, + NM_ACTIVE_CONNECTION_SPECIFIC_OBJECT, + specific_object, + NM_ACTIVE_CONNECTION_INT_SUBJECT, + subject, + NM_ACTIVE_CONNECTION_INT_ACTIVATION_TYPE, + (int) activation_type, + NM_ACTIVE_CONNECTION_INT_ACTIVATION_REASON, + (int) activation_reason, + NM_ACTIVE_CONNECTION_STATE_FLAGS, + (guint) initial_state_flags, + NULL); +} + +static void +dispose(GObject *object) +{ + NMActRequest * self = NM_ACT_REQUEST(object); + NMActRequestPrivate * priv = NM_ACT_REQUEST_GET_PRIVATE(self); + NMActRequestGetSecretsCallId *call_id, *call_id_safe; + + /* Kill any in-progress secrets requests */ + c_list_for_each_entry_safe (call_id, call_id_safe, &priv->call_ids_lst_head, call_ids_lst) + _do_cancel_secrets(self, call_id, TRUE); + + if (priv->share_rules) { + nm_utils_share_rules_apply(priv->share_rules, FALSE); + nm_clear_pointer(&priv->share_rules, nm_utils_share_rules_free); + } + + G_OBJECT_CLASS(nm_act_request_parent_class)->dispose(object); +} + +static void +nm_act_request_class_init(NMActRequestClass *req_class) +{ + GObjectClass * object_class = G_OBJECT_CLASS(req_class); + NMActiveConnectionClass *active_class = NM_ACTIVE_CONNECTION_CLASS(req_class); + + /* virtual methods */ + object_class->dispose = dispose; + object_class->get_property = get_property; + active_class->master_failed = master_failed; + active_class->device_state_changed = device_state_changed; + + /* properties */ + g_object_class_override_property(object_class, + PROP_IP4_CONFIG, + NM_ACTIVE_CONNECTION_IP4_CONFIG); + g_object_class_override_property(object_class, + PROP_DHCP4_CONFIG, + NM_ACTIVE_CONNECTION_DHCP4_CONFIG); + g_object_class_override_property(object_class, + PROP_IP6_CONFIG, + NM_ACTIVE_CONNECTION_IP6_CONFIG); + g_object_class_override_property(object_class, + PROP_DHCP6_CONFIG, + NM_ACTIVE_CONNECTION_DHCP6_CONFIG); +} |