diff options
Diffstat (limited to 'src/settings/nm-settings-utils.c')
| -rw-r--r-- | src/settings/nm-settings-utils.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/settings/nm-settings-utils.c b/src/settings/nm-settings-utils.c new file mode 100644 index 00000000..0d636537 --- /dev/null +++ b/src/settings/nm-settings-utils.c @@ -0,0 +1,175 @@ +/* NetworkManager system settings service - keyfile plugin + * + * 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) 2019 Red Hat, Inc. + */ + +#include "nm-default.h" + +#include "nm-settings-utils.h" + +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/types.h> +#include <unistd.h> + +#include "nm-settings-plugin.h" + +/*****************************************************************************/ + +const struct timespec * +nm_sett_util_stat_mtime (const char *filename, + gboolean do_lstat, + struct timespec *out_val) +{ + struct stat st; + struct timeval now_tv; + + if (filename) { + if (do_lstat) { + if (lstat (filename, &st) == 0) { + *out_val = st.st_mtim; + return out_val; + } + } else { + if (stat (filename, &st) == 0) { + *out_val = st.st_mtim; + return out_val; + } + } + } + + if (gettimeofday (&now_tv, NULL) == 0) { + *out_val = (struct timespec) { + .tv_sec = now_tv.tv_sec, + .tv_nsec = now_tv.tv_usec * 1000u, + }; + return out_val; + } + + *out_val = (struct timespec) { }; + return out_val; +} + +/*****************************************************************************/ + +gboolean +nm_sett_util_allow_filename_cb (const char *filename, + gpointer user_data) +{ + const NMSettUtilAllowFilenameData *allow_filename_data = user_data; + + if ( allow_filename_data->allowed_filename + && nm_streq (allow_filename_data->allowed_filename, filename)) + return TRUE; + + return !g_hash_table_contains (allow_filename_data->idx_by_filename, filename); +} + +/*****************************************************************************/ + +void +nm_sett_util_storage_by_uuid_head_destroy (NMSettUtilStorageByUuidHead *sbuh) +{ + CList *iter; + + while ((iter = c_list_first (&sbuh->_storage_by_uuid_lst_head))) + c_list_unlink (iter); + g_free (sbuh); +} + +/*****************************************************************************/ + +void +nm_sett_util_storages_clear (NMSettUtilStorages *storages) +{ + nm_clear_pointer (&storages->idx_by_uuid, g_hash_table_destroy); + nm_clear_pointer (&storages->idx_by_filename, g_hash_table_destroy); + nm_assert (c_list_is_empty (&storages->_storage_lst_head)); +} + +void +nm_sett_util_storages_add_take (NMSettUtilStorages *storages, + gpointer storage_take_p /* NMSettingsStorage *, take reference */) +{ + NMSettingsStorage *storage_take = storage_take_p; + NMSettUtilStorageByUuidHead *sbuh; + const char *uuid; + + nm_assert (storage_take); + nm_assert (c_list_is_empty (&storage_take->_storage_lst)); + nm_assert (c_list_is_empty (&storage_take->_storage_by_uuid_lst)); + nm_assert (nm_settings_storage_get_filename (storage_take)); + + if (!g_hash_table_replace (storages->idx_by_filename, + (char *) nm_settings_storage_get_filename (storage_take), + storage_take /* takes ownership of reference. */)) + nm_assert_not_reached (); + + uuid = nm_settings_storage_get_uuid_opt (storage_take); + + if (uuid) { + sbuh = nm_sett_util_storages_lookup_by_uuid (storages, uuid); + if (!sbuh) { + gsize l = strlen (uuid) + 1; + + sbuh = g_malloc (sizeof (NMSettUtilStorageByUuidHead) + l); + sbuh->uuid = sbuh->uuid_data; + c_list_init (&sbuh->_storage_by_uuid_lst_head); + memcpy (sbuh->uuid_data, uuid, l); + g_hash_table_add (storages->idx_by_uuid, sbuh); + } + c_list_link_tail (&sbuh->_storage_by_uuid_lst_head, &storage_take->_storage_by_uuid_lst); + } + + c_list_link_tail (&storages->_storage_lst_head, &storage_take->_storage_lst); +} + +gpointer /* NMSettingsStorage * */ +nm_sett_util_storages_steal (NMSettUtilStorages *storages, + gpointer storage_p /* NMSettingsStorage **/) +{ + NMSettingsStorage *storage = storage_p; + NMSettUtilStorageByUuidHead *sbuh; + const char *uuid; + + nm_assert (storage); + nm_assert (nm_sett_util_storages_lookup_by_filename (storages, nm_settings_storage_get_filename (storage)) == storage); + nm_assert (c_list_contains (&storages->_storage_lst_head, &storage->_storage_lst)); + + uuid = nm_settings_storage_get_uuid_opt (storage); + + if (!uuid) { + nm_assert (c_list_is_empty (&storage->_storage_by_uuid_lst)); + } else { + nm_assert (!c_list_is_empty (&storage->_storage_by_uuid_lst)); + + sbuh = nm_sett_util_storages_lookup_by_uuid (storages, uuid); + + nm_assert (sbuh); + nm_assert (c_list_contains (&sbuh->_storage_by_uuid_lst_head, &storage->_storage_by_uuid_lst)); + c_list_unlink (&storage->_storage_by_uuid_lst); + + if (c_list_is_empty (&sbuh->_storage_by_uuid_lst_head)) + g_hash_table_remove (storages->idx_by_uuid, sbuh); + } + + c_list_unlink (&storage->_storage_lst); + + g_hash_table_steal (storages->idx_by_filename, nm_settings_storage_get_filename (storage)); + + return storage; +} |