mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2025-12-25 06:00:08 +01:00
44ecb41593
Keep the include paths clean and separate. We use directories to group source files together. That makes sense (I guess), but then we should use this grouping also when including files. Thus require to #include files with their path relative to "src/". Also, we build various artifacts from the "src/" tree. Instead of having individual CFLAGS for each artifact in Makefile.am, the CFLAGS should be unified. Previously, the CFLAGS for each artifact differ and are inconsistent in which paths they add to the search path. Fix the inconsistency by just don't add the paths at all.
302 lines
8.9 KiB
C
302 lines
8.9 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2016 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-checkpoint-manager.h"
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#include "nm-checkpoint.h"
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#include "nm-connection.h"
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#include "nm-core-utils.h"
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#include "devices/nm-device.h"
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#include "nm-exported-object.h"
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#include "nm-manager.h"
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#include "nm-utils.h"
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/*****************************************************************************/
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struct _NMCheckpointManager {
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NMManager *_manager;
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GHashTable *checkpoints;
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guint rollback_timeout_id;
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};
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#define GET_MANAGER(self) \
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({ \
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typeof (self) _self = (self); \
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\
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_nm_unused NMCheckpointManager *_self2 = _self; \
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\
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nm_assert (_self); \
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nm_assert (NM_IS_MANAGER (_self->_manager)); \
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_self->_manager; \
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})
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/*****************************************************************************/
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#define _NMLOG_DOMAIN LOGD_CORE
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#define _NMLOG(level, ...) __NMLOG_DEFAULT (level, _NMLOG_DOMAIN, "checkpoint", __VA_ARGS__)
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/*****************************************************************************/
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static void update_rollback_timeout (NMCheckpointManager *self);
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static void
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checkpoint_destroy (gpointer checkpoint)
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{
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nm_exported_object_unexport (NM_EXPORTED_OBJECT (checkpoint));
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g_object_unref (G_OBJECT (checkpoint));
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}
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static gboolean
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rollback_timeout_cb (NMCheckpointManager *self)
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{
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NMCheckpoint *checkpoint;
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GHashTableIter iter;
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GVariant *result;
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gint64 ts, now;
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now = nm_utils_get_monotonic_timestamp_ms ();
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g_hash_table_iter_init (&iter, self->checkpoints);
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while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &checkpoint)) {
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ts = nm_checkpoint_get_rollback_ts (checkpoint);
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if (ts && ts <= now) {
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result = nm_checkpoint_rollback (checkpoint);
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if (result)
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g_variant_unref (result);
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g_hash_table_iter_remove (&iter);
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}
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}
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self->rollback_timeout_id = 0;
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update_rollback_timeout (self);
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return G_SOURCE_REMOVE;
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}
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static void
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update_rollback_timeout (NMCheckpointManager *self)
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{
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NMCheckpoint *checkpoint;
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GHashTableIter iter;
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gint64 ts, delta, next = G_MAXINT64;
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g_hash_table_iter_init (&iter, self->checkpoints);
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while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &checkpoint)) {
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ts = nm_checkpoint_get_rollback_ts (checkpoint);
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if (ts && ts < next)
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next = ts;
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}
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nm_clear_g_source (&self->rollback_timeout_id);
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if (next != G_MAXINT64) {
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delta = MAX (next - nm_utils_get_monotonic_timestamp_ms (), 0);
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self->rollback_timeout_id = g_timeout_add (delta,
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(GSourceFunc) rollback_timeout_cb,
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self);
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_LOGT ("update timeout: next check in %" G_GINT64_FORMAT " ms", delta);
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}
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}
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static NMCheckpoint *
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find_checkpoint_for_device (NMCheckpointManager *self, NMDevice *device)
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{
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GHashTableIter iter;
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NMCheckpoint *checkpoint;
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g_hash_table_iter_init (&iter, self->checkpoints);
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while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &checkpoint)) {
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if (nm_checkpoint_includes_device (checkpoint, device))
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return checkpoint;
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}
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return NULL;
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}
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NMCheckpoint *
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nm_checkpoint_manager_create (NMCheckpointManager *self,
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const char *const *device_paths,
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guint32 rollback_timeout,
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NMCheckpointCreateFlags flags,
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GError **error)
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{
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NMManager *manager;
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NMCheckpoint *checkpoint;
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const char * const *path;
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gs_unref_ptrarray GPtrArray *devices = NULL;
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NMDevice *device;
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const char *checkpoint_path;
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gs_free const char **device_paths_free = NULL;
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guint i;
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g_return_val_if_fail (self, FALSE);
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g_return_val_if_fail (!error || !*error, FALSE);
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manager = GET_MANAGER (self);
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if (!device_paths || !device_paths[0]) {
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device_paths_free = nm_manager_get_device_paths (manager);
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device_paths = (const char *const *) device_paths_free;
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} else if (NM_FLAGS_HAS (flags, NM_CHECKPOINT_CREATE_FLAG_DISCONNECT_NEW_DEVICES)) {
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g_set_error_literal (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_INVALID_ARGUMENTS,
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"the DISCONNECT_NEW_DEVICES flag can only be used with an empty device list");
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return NULL;
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}
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devices = g_ptr_array_new ();
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for (path = device_paths; *path; path++) {
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device = nm_manager_get_device_by_path (manager, *path);
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if (!device) {
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g_set_error (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_UNKNOWN_DEVICE,
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"device %s does not exist", *path);
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return NULL;
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}
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g_ptr_array_add (devices, device);
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}
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if (!NM_FLAGS_HAS (flags, NM_CHECKPOINT_CREATE_FLAG_DESTROY_ALL)) {
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for (i = 0; i < devices->len; i++) {
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device = devices->pdata[i];
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if (find_checkpoint_for_device (self, device)) {
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g_set_error (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_INVALID_ARGUMENTS,
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"a checkpoint for device '%s' already exists",
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nm_device_get_iface (device));
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return NULL;
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}
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}
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}
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checkpoint = nm_checkpoint_new (manager, devices, rollback_timeout, flags, error);
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if (!checkpoint)
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return NULL;
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if (NM_FLAGS_HAS (flags, NM_CHECKPOINT_CREATE_FLAG_DESTROY_ALL))
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g_hash_table_remove_all (self->checkpoints);
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nm_exported_object_export (NM_EXPORTED_OBJECT (checkpoint));
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checkpoint_path = nm_exported_object_get_path (NM_EXPORTED_OBJECT (checkpoint));
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if (!nm_g_hash_table_insert (self->checkpoints,
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(gpointer) checkpoint_path,
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checkpoint))
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g_return_val_if_reached (NULL);
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update_rollback_timeout (self);
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return checkpoint;
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}
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gboolean
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nm_checkpoint_manager_destroy_all (NMCheckpointManager *self,
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GError **error)
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{
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g_return_val_if_fail (self, FALSE);
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g_hash_table_remove_all (self->checkpoints);
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return TRUE;
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}
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gboolean
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nm_checkpoint_manager_destroy (NMCheckpointManager *self,
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const char *checkpoint_path,
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GError **error)
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{
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gboolean ret;
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g_return_val_if_fail (self, FALSE);
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g_return_val_if_fail (checkpoint_path && checkpoint_path[0] == '/', FALSE);
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g_return_val_if_fail (!error || !*error, FALSE);
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if (!nm_streq (checkpoint_path, "/")) {
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ret = g_hash_table_remove (self->checkpoints, checkpoint_path);
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if (!ret) {
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g_set_error (error,
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NM_MANAGER_ERROR,
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NM_MANAGER_ERROR_INVALID_ARGUMENTS,
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"checkpoint %s does not exist", checkpoint_path);
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}
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return ret;
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} else
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return nm_checkpoint_manager_destroy_all (self, error);
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}
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gboolean
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nm_checkpoint_manager_rollback (NMCheckpointManager *self,
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const char *checkpoint_path,
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GVariant **results,
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GError **error)
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{
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NMCheckpoint *cp;
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g_return_val_if_fail (self, FALSE);
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g_return_val_if_fail (checkpoint_path && checkpoint_path[0] == '/', FALSE);
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g_return_val_if_fail (results, FALSE);
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g_return_val_if_fail (!error || !*error, FALSE);
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cp = g_hash_table_lookup (self->checkpoints, checkpoint_path);
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if (!cp) {
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g_set_error (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_FAILED,
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"checkpoint %s does not exist", checkpoint_path);
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return FALSE;
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}
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*results = nm_checkpoint_rollback (cp);
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g_hash_table_remove (self->checkpoints, checkpoint_path);
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return TRUE;
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}
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/*****************************************************************************/
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NMCheckpointManager *
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nm_checkpoint_manager_new (NMManager *manager)
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{
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NMCheckpointManager *self;
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g_return_val_if_fail (NM_IS_MANAGER (manager), FALSE);
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self = g_slice_new0 (NMCheckpointManager);
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/* the NMCheckpointManager instance is actually owned by NMManager.
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* Thus, we cannot take a reference to it, and we also don't bother
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* taking a weak-reference. Instead let GET_MANAGER() assert that
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* self->_manager is alive -- which we always expect as the lifetime
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* of NMManager shall surpass the lifetime of the NMCheckpointManager
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* instance. */
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self->_manager = manager;
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self->checkpoints = g_hash_table_new_full (g_str_hash, g_str_equal,
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NULL, checkpoint_destroy);
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return self;
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}
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void
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nm_checkpoint_manager_unref (NMCheckpointManager *self)
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{
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if (!self)
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return;
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nm_clear_g_source (&self->rollback_timeout_id);
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g_hash_table_destroy (self->checkpoints);
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g_slice_free (NMCheckpointManager, self);
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}
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