+++ /dev/null
-/*
- * Unix SMB/CIFS implementation.
- * Support for OneFS
- *
- * Copyright (C) Todd Stecher, 2009
- * Copyright (C) Tim Prouty, 2009
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "includes.h"
-#include "onefs_config.h"
-
-#include <ifs/ifs_syscalls.h>
-
-#define ONEFS_DATA_FASTBUF 10
-
-struct onefs_vfs_share_config vfs_share_config[ONEFS_DATA_FASTBUF];
-struct onefs_vfs_share_config *pvfs_share_config;
-
-static void onefs_load_faketimestamp_config(struct connection_struct *conn,
- struct onefs_vfs_share_config *cfg)
-{
- const char **parm;
- int snum = SNUM(conn);
-
- parm = lp_parm_string_list(snum, PARM_ONEFS_TYPE, PARM_ATIME_NOW,
- PARM_ATIME_NOW_DEFAULT);
-
- if (parm) {
- cfg->init_flags |= ONEFS_VFS_CONFIG_FAKETIMESTAMPS;
- set_namearray(&cfg->atime_now_list,*parm);
- }
-
- parm = lp_parm_string_list(snum, PARM_ONEFS_TYPE, PARM_CTIME_NOW,
- PARM_CTIME_NOW_DEFAULT);
-
- if (parm) {
- cfg->init_flags |= ONEFS_VFS_CONFIG_FAKETIMESTAMPS;
- set_namearray(&cfg->ctime_now_list,*parm);
- }
-
- parm = lp_parm_string_list(snum, PARM_ONEFS_TYPE, PARM_MTIME_NOW,
- PARM_MTIME_NOW_DEFAULT);
-
- if (parm) {
- cfg->init_flags |= ONEFS_VFS_CONFIG_FAKETIMESTAMPS;
- set_namearray(&cfg->mtime_now_list,*parm);
- }
-
- parm = lp_parm_string_list(snum, PARM_ONEFS_TYPE, PARM_ATIME_STATIC,
- PARM_ATIME_STATIC_DEFAULT);
-
- if (parm) {
- cfg->init_flags |= ONEFS_VFS_CONFIG_FAKETIMESTAMPS;
- set_namearray(&cfg->atime_static_list,*parm);
- }
-
- parm = lp_parm_string_list(snum, PARM_ONEFS_TYPE, PARM_MTIME_STATIC,
- PARM_MTIME_STATIC_DEFAULT);
-
- if (parm) {
- cfg->init_flags |= ONEFS_VFS_CONFIG_FAKETIMESTAMPS;
- set_namearray(&cfg->mtime_static_list,*parm);
- }
-
- cfg->atime_slop = lp_parm_int(snum, PARM_ONEFS_TYPE, PARM_ATIME_SLOP,
- PARM_ATIME_SLOP_DEFAULT);
- cfg->ctime_slop = lp_parm_int(snum, PARM_ONEFS_TYPE, PARM_CTIME_SLOP,
- PARM_CTIME_SLOP_DEFAULT);
- cfg->mtime_slop = lp_parm_int(snum, PARM_ONEFS_TYPE, PARM_MTIME_SLOP,
- PARM_MTIME_SLOP_DEFAULT);
-}
-
-/**
- * Set onefs-specific vfs global config parameters.
- *
- * Since changes in these parameters require calling syscalls, we only want to
- * call them when the configuration actually changes.
- */
-static void onefs_load_global_config(connection_struct *conn)
-{
- static struct onefs_vfs_global_config global_config;
- bool dot_snap_child_accessible;
- bool dot_snap_child_visible;
- bool dot_snap_root_accessible;
- bool dot_snap_root_visible;
- bool dot_snap_tilde;
- bool reconfig_dso = false;
- bool reconfig_tilde = false;
-
- /* Check if this is the first time setting the config options. */
- if (!(global_config.init_flags & ONEFS_VFS_CONFIG_INITIALIZED)) {
- global_config.init_flags |= ONEFS_VFS_CONFIG_INITIALIZED;
-
- /* Set process encoding */
- onefs_sys_config_enc();
-
- reconfig_dso = true;
- reconfig_tilde = true;
- }
-
- /* Get the dot snap options from the conf. */
- dot_snap_child_accessible =
- lp_parm_bool(SNUM(conn), PARM_ONEFS_TYPE,
- PARM_DOT_SNAP_CHILD_ACCESSIBLE,
- PARM_DOT_SNAP_CHILD_ACCESSIBLE_DEFAULT);
- dot_snap_child_visible =
- lp_parm_bool(SNUM(conn), PARM_ONEFS_TYPE,
- PARM_DOT_SNAP_CHILD_VISIBLE,
- PARM_DOT_SNAP_CHILD_VISIBLE_DEFAULT);
- dot_snap_root_accessible =
- lp_parm_bool(SNUM(conn), PARM_ONEFS_TYPE,
- PARM_DOT_SNAP_ROOT_ACCESSIBLE,
- PARM_DOT_SNAP_ROOT_ACCESSIBLE_DEFAULT);
- dot_snap_root_visible =
- lp_parm_bool(SNUM(conn), PARM_ONEFS_TYPE,
- PARM_DOT_SNAP_ROOT_VISIBLE,
- PARM_DOT_SNAP_ROOT_VISIBLE_DEFAULT);
- dot_snap_tilde =
- lp_parm_bool(SNUM(conn), PARM_ONEFS_TYPE,
- PARM_DOT_SNAP_TILDE,
- PARM_DOT_SNAP_TILDE_DEFAULT);
-
- /* Check if any of the dot snap options need updating. */
- if (dot_snap_child_accessible !=
- global_config.dot_snap_child_accessible) {
- global_config.dot_snap_child_accessible =
- dot_snap_child_accessible;
- reconfig_dso = true;
- }
- if (dot_snap_child_visible !=
- global_config.dot_snap_child_visible) {
- global_config.dot_snap_child_visible =
- dot_snap_child_visible;
- reconfig_dso = true;
- }
- if (dot_snap_root_accessible !=
- global_config.dot_snap_root_accessible) {
- global_config.dot_snap_root_accessible =
- dot_snap_root_accessible;
- reconfig_dso = true;
- }
- if (dot_snap_root_visible !=
- global_config.dot_snap_root_visible) {
- global_config.dot_snap_root_visible =
- dot_snap_root_visible;
- reconfig_dso = true;
- }
- if (dot_snap_tilde != global_config.dot_snap_tilde) {
- global_config.dot_snap_tilde = dot_snap_tilde;
- reconfig_tilde = true;
- }
-
- /* If a dot snap option has changed update the process. */
- if (reconfig_dso) {
- onefs_sys_config_snap_opt(&global_config);
- }
-
- /* If the dot snap tilde option has changed update the process. */
- if (reconfig_tilde) {
- onefs_sys_config_tilde(&global_config);
- }
-}
-
-int onefs_load_config(connection_struct *conn)
-{
- int snum = SNUM(conn);
- int share_count = lp_numservices();
-
- /* Share config */
- if (!pvfs_share_config) {
-
- if (share_count <= ONEFS_DATA_FASTBUF)
- pvfs_share_config = vfs_share_config;
- else {
- pvfs_share_config =
- SMB_MALLOC_ARRAY(struct onefs_vfs_share_config,
- share_count);
- if (!pvfs_share_config) {
- errno = ENOMEM;
- return -1;
- }
-
- memset(pvfs_share_config, 0,
- (sizeof(struct onefs_vfs_share_config) *
- share_count));
- }
- }
-
- if ((pvfs_share_config[snum].init_flags &
- ONEFS_VFS_CONFIG_INITIALIZED) == 0) {
- pvfs_share_config[snum].init_flags =
- ONEFS_VFS_CONFIG_INITIALIZED;
- onefs_load_faketimestamp_config(conn,
- &pvfs_share_config[snum]);
- }
-
- /* Global config */
- onefs_load_global_config(conn);
-
- return 0;
-}
-
-bool onefs_get_config(int snum, int config_type,
- struct onefs_vfs_share_config *cfg)
-{
- if (vfs_share_config[snum].init_flags & config_type)
- *cfg = vfs_share_config[snum];
- else
- return false;
-
- return true;
-}
-
-
-/**
- * Set the per-process encoding, ignoring errors.
- */
-void onefs_sys_config_enc(void)
-{
- int ret;
-
- ret = enc_set_proc(ENC_UTF8);
- if (ret) {
- DEBUG(0, ("Setting process encoding failed: %s\n",
- strerror(errno)));
- }
-}
-
-/**
- * Set the per-process .snpashot directory options, ignoring errors.
- */
-void onefs_sys_config_snap_opt(struct onefs_vfs_global_config *global_config)
-{
- struct ifs_dotsnap_options dso;
- int ret;
-
- dso.per_proc = 1;
- dso.sub_accessible = global_config->dot_snap_child_accessible;
- dso.sub_visible = global_config->dot_snap_child_visible;
- dso.root_accessible = global_config->dot_snap_root_accessible;
- dso.root_visible = global_config->dot_snap_root_visible;
-
- ret = ifs_set_dotsnap_options(&dso);
- if (ret) {
- DEBUG(0, ("Setting snapshot visibility/accessibility "
- "failed: %s\n", strerror(errno)));
- }
-}
-
-/**
- * Set the per-process flag saying whether or not to accept ~snapshot
- * as an alternative name for .snapshot directories.
- */
-void onefs_sys_config_tilde(struct onefs_vfs_global_config *global_config)
-{
- int ret;
-
- ret = ifs_tilde_snapshot(global_config->dot_snap_tilde);
- if (ret) {
- DEBUG(0, ("Setting snapshot tilde failed: %s\n",
- strerror(errno)));
- }
-}
git.samba.org / samba.git / blobdiff