samba-mirror/source3/modules/vfs_time_audit.c

/*
 * Time auditing VFS module for samba.  Log time taken for VFS call to syslog
 * facility.
 *
 * Copyright (C) Abhidnya Chirmule <achirmul@in.ibm.com> 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/>.
 */

/*
 * This module implements logging for time taken for all Samba VFS operations.
 *
 * vfs objects = time_audit
 */


#include "includes.h"
#include "smbd/smbd.h"
#include "ntioctl.h"
#include "lib/util/tevent_unix.h"
#include "lib/util/tevent_ntstatus.h"

#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS

static double audit_timeout;

static void smb_time_audit_log_msg(const char *syscallname, double elapsed,
				    const char *msg)
{
	DEBUG(0, ("WARNING: VFS call \"%s\" took unexpectedly long "
		  "(%.2f seconds) %s%s-- Validate that file and storage "
		  "subsystems are operating normally\n", syscallname,
		  elapsed, (msg != NULL) ? msg : "",
		  (msg != NULL) ? " " : ""));
}

static void smb_time_audit_log(const char *syscallname, double elapsed)
{
	smb_time_audit_log_msg(syscallname, elapsed, NULL);
}

static void smb_time_audit_log_fsp(const char *syscallname, double elapsed,
				   const struct files_struct *fsp)
{
	char *base_name = NULL;
	char *connectpath = NULL;
	char *msg = NULL;

	if (fsp == NULL) {
		smb_time_audit_log(syscallname, elapsed);
		return;
	}
	if (fsp->conn)
		connectpath = fsp->conn->connectpath;
	if (fsp->fsp_name)
		base_name = fsp->fsp_name->base_name;

	if (connectpath != NULL && base_name != NULL) {
		msg = talloc_asprintf(talloc_tos(), "filename = \"%s/%s\"",
				      connectpath, base_name);
	} else if (connectpath != NULL && base_name == NULL) {
		msg = talloc_asprintf(talloc_tos(), "connectpath = \"%s\", "
				      "base_name = <NULL>",
				      connectpath);
	} else if (connectpath == NULL && base_name != NULL) {
		msg = talloc_asprintf(talloc_tos(), "connectpath = <NULL>, "
				      "base_name = \"%s\"",
				      base_name);
	} else { /* connectpath == NULL && base_name == NULL */
		msg = talloc_asprintf(talloc_tos(), "connectpath = <NULL>, "
				      "base_name = <NULL>");
	}
	smb_time_audit_log_msg(syscallname, elapsed, msg);
	TALLOC_FREE(msg);
}

static void smb_time_audit_log_fname(const char *syscallname, double elapsed,
				    const char *fname)
{
	char cwd[PATH_MAX];
	char *msg = NULL;

	if (getcwd(cwd, sizeof(cwd)) == NULL) {
		snprintf(cwd, sizeof(cwd), "<getcwd() error %d>", errno);
	}
	if (fname != NULL) {
		msg = talloc_asprintf(talloc_tos(),
				      "cwd = \"%s\", filename = \"%s\"",
				      cwd, fname);
	} else {
		msg = talloc_asprintf(talloc_tos(),
				      "cwd = \"%s\", filename = <NULL>",
				      cwd);
	}
	smb_time_audit_log_msg(syscallname, elapsed, msg);
	TALLOC_FREE(msg);
}

static void smb_time_audit_log_smb_fname(const char *syscallname, double elapsed,
				       const struct smb_filename *smb_fname)
{
	if (smb_fname != NULL) {
		smb_time_audit_log_fname(syscallname, elapsed,
					 smb_fname->base_name);
	} else {
		smb_time_audit_log_fname(syscallname, elapsed,
					 "smb_fname = <NULL>");
	}
}

static int smb_time_audit_connect(vfs_handle_struct *handle,
				  const char *svc, const char *user)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	if (!handle) {
		return -1;
	}

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CONNECT(handle, svc, user);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;
	if (timediff > audit_timeout) {
		smb_time_audit_log_msg("connect", timediff, user);
	}
	return result;
}

static void smb_time_audit_disconnect(vfs_handle_struct *handle)
{
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	SMB_VFS_NEXT_DISCONNECT(handle);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("disconnect", timediff);
	}
}

static uint64_t smb_time_audit_disk_free(vfs_handle_struct *handle,
					 const char *path,
					 bool small_query, uint64_t *bsize,
					 uint64_t *dfree, uint64_t *dsize)
{
	uint64_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_DISK_FREE(handle, path, small_query, bsize,
					dfree, dsize);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	/* Don't have a reasonable notion of failure here */
	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("disk_free", timediff, path);
	}

	return result;
}

static int smb_time_audit_get_quota(struct vfs_handle_struct *handle,
				    enum SMB_QUOTA_TYPE qtype, unid_t id,
				    SMB_DISK_QUOTA *qt)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GET_QUOTA(handle, qtype, id, qt);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("get_quota", timediff);
	}
	return result;
}

static int smb_time_audit_set_quota(struct vfs_handle_struct *handle,
				    enum SMB_QUOTA_TYPE qtype, unid_t id,
				    SMB_DISK_QUOTA *qt)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SET_QUOTA(handle, qtype, id, qt);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("set_quota", timediff);
	}

	return result;
}

static int smb_time_audit_get_shadow_copy_data(struct vfs_handle_struct *handle,
					       struct files_struct *fsp,
					       struct shadow_copy_data *shadow_copy_data,
					       bool labels)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GET_SHADOW_COPY_DATA(handle, fsp,
						   shadow_copy_data, labels);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("get_shadow_copy_data", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_statvfs(struct vfs_handle_struct *handle,
				  const char *path,
				  struct vfs_statvfs_struct *statbuf)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_STATVFS(handle, path, statbuf);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("statvfs", timediff, path);
	}

	return result;
}

static uint32_t smb_time_audit_fs_capabilities(struct vfs_handle_struct *handle,
					       enum timestamp_set_resolution *p_ts_res)
{
	uint32_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("fs_capabilities", timediff);
	}

	return result;
}

static DIR *smb_time_audit_opendir(vfs_handle_struct *handle,
					      const char *fname,
					      const char *mask, uint32 attr)
{
	DIR *result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_OPENDIR(handle, fname, mask, attr);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("opendir", timediff, fname);
	}

	return result;
}

static DIR *smb_time_audit_fdopendir(vfs_handle_struct *handle,
					      files_struct *fsp,
					      const char *mask, uint32 attr)
{
	DIR *result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fdopendir", timediff, fsp);
	}

	return result;
}

static struct dirent *smb_time_audit_readdir(vfs_handle_struct *handle,
						 DIR *dirp,
						 SMB_STRUCT_STAT *sbuf)
{
	struct dirent *result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_READDIR(handle, dirp, sbuf);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("readdir", timediff);
	}

	return result;
}

static void smb_time_audit_seekdir(vfs_handle_struct *handle,
				   DIR *dirp, long offset)
{
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	SMB_VFS_NEXT_SEEKDIR(handle, dirp, offset);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("seekdir", timediff);
	}

}

static long smb_time_audit_telldir(vfs_handle_struct *handle,
				   DIR *dirp)
{
	long result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_TELLDIR(handle, dirp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("telldir", timediff);
	}

	return result;
}

static void smb_time_audit_rewinddir(vfs_handle_struct *handle,
				     DIR *dirp)
{
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	SMB_VFS_NEXT_REWINDDIR(handle, dirp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("rewinddir", timediff);
	}

}

static int smb_time_audit_mkdir(vfs_handle_struct *handle,
				const char *path, mode_t mode)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("mkdir", timediff, path);
	}

	return result;
}

static int smb_time_audit_rmdir(vfs_handle_struct *handle,
				const char *path)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_RMDIR(handle, path);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("rmdir", timediff, path);
	}

	return result;
}

static int smb_time_audit_closedir(vfs_handle_struct *handle,
				   DIR *dirp)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CLOSEDIR(handle, dirp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("closedir", timediff);
	}

	return result;
}

static void smb_time_audit_init_search_op(vfs_handle_struct *handle,
					  DIR *dirp)
{
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	SMB_VFS_NEXT_INIT_SEARCH_OP(handle, dirp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("init_search_op", timediff);
	}
}

static int smb_time_audit_open(vfs_handle_struct *handle,
			       struct smb_filename *fname,
			       files_struct *fsp,
			       int flags, mode_t mode)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("open", timediff, fsp);
	}

	return result;
}

static NTSTATUS smb_time_audit_create_file(vfs_handle_struct *handle,
					   struct smb_request *req,
					   uint16_t root_dir_fid,
					   struct smb_filename *fname,
					   uint32_t access_mask,
					   uint32_t share_access,
					   uint32_t create_disposition,
					   uint32_t create_options,
					   uint32_t file_attributes,
					   uint32_t oplock_request,
					   uint64_t allocation_size,
					   uint32_t private_flags,
					   struct security_descriptor *sd,
					   struct ea_list *ea_list,
					   files_struct **result_fsp,
					   int *pinfo)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CREATE_FILE(
		handle,					/* handle */
		req,					/* req */
		root_dir_fid,				/* root_dir_fid */
		fname,					/* fname */
		access_mask,				/* access_mask */
		share_access,				/* share_access */
		create_disposition,			/* create_disposition*/
		create_options,				/* create_options */
		file_attributes,			/* file_attributes */
		oplock_request,				/* oplock_request */
		allocation_size,			/* allocation_size */
		private_flags,
		sd,					/* sd */
		ea_list,				/* ea_list */
		result_fsp,				/* result */
		pinfo);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		/*
		 * can't use result_fsp this time, may have
		 * invalid content causing smbd crash
		 */
		smb_time_audit_log_smb_fname("create_file", timediff,
					   fname);
	}

	return result;
}

static int smb_time_audit_close(vfs_handle_struct *handle, files_struct *fsp)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CLOSE(handle, fsp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("close", timediff, fsp);
	}

	return result;
}

static ssize_t smb_time_audit_read(vfs_handle_struct *handle,
				   files_struct *fsp, void *data, size_t n)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_READ(handle, fsp, data, n);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("read", timediff, fsp);
	}

	return result;
}

static ssize_t smb_time_audit_pread(vfs_handle_struct *handle,
				    files_struct *fsp,
				    void *data, size_t n, off_t offset)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("pread", timediff, fsp);
	}

	return result;
}

struct smb_time_audit_pread_state {
	struct files_struct *fsp;
	struct timespec ts1;
	ssize_t ret;
	int err;
};

static void smb_time_audit_pread_done(struct tevent_req *subreq);

static struct tevent_req *smb_time_audit_pread_send(
	struct vfs_handle_struct *handle, TALLOC_CTX *mem_ctx,
	struct tevent_context *ev, struct files_struct *fsp,
	void *data, size_t n, off_t offset)
{
	struct tevent_req *req, *subreq;
	struct smb_time_audit_pread_state *state;

	req = tevent_req_create(mem_ctx, &state,
				struct smb_time_audit_pread_state);
	if (req == NULL) {
		return NULL;
	}
	clock_gettime_mono(&state->ts1);
	state->fsp = fsp;

	subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
					 n, offset);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, smb_time_audit_pread_done, req);
	return req;
}

static void smb_time_audit_pread_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct smb_time_audit_pread_state *state = tevent_req_data(
		req, struct smb_time_audit_pread_state);

	state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
	TALLOC_FREE(subreq);
	tevent_req_done(req);
}

static ssize_t smb_time_audit_pread_recv(struct tevent_req *req, int *err)
{
	struct smb_time_audit_pread_state *state = tevent_req_data(
		req, struct smb_time_audit_pread_state);
	struct timespec ts2;
	double timediff;

	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&state->ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("pread", timediff, state->fsp);
	}

	if (tevent_req_is_unix_error(req, err)) {
		return -1;
	}
	*err = state->err;
	return state->ret;
}

static ssize_t smb_time_audit_write(vfs_handle_struct *handle,
				    files_struct *fsp,
				    const void *data, size_t n)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("write", timediff, fsp);
	}

	return result;
}

static ssize_t smb_time_audit_pwrite(vfs_handle_struct *handle,
				     files_struct *fsp,
				     const void *data, size_t n,
				     off_t offset)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("pwrite", timediff, fsp);
	}

	return result;
}

struct smb_time_audit_pwrite_state {
	struct files_struct *fsp;
	struct timespec ts1;
	ssize_t ret;
	int err;
};

static void smb_time_audit_pwrite_done(struct tevent_req *subreq);

static struct tevent_req *smb_time_audit_pwrite_send(
	struct vfs_handle_struct *handle, TALLOC_CTX *mem_ctx,
	struct tevent_context *ev, struct files_struct *fsp,
	const void *data, size_t n, off_t offset)
{
	struct tevent_req *req, *subreq;
	struct smb_time_audit_pwrite_state *state;

	req = tevent_req_create(mem_ctx, &state,
				struct smb_time_audit_pwrite_state);
	if (req == NULL) {
		return NULL;
	}
	clock_gettime_mono(&state->ts1);
	state->fsp = fsp;

	subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
					 n, offset);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, smb_time_audit_pwrite_done, req);
	return req;
}

static void smb_time_audit_pwrite_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct smb_time_audit_pwrite_state *state = tevent_req_data(
		req, struct smb_time_audit_pwrite_state);

	state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
	TALLOC_FREE(subreq);
	tevent_req_done(req);
}

static ssize_t smb_time_audit_pwrite_recv(struct tevent_req *req, int *err)
{
	struct smb_time_audit_pwrite_state *state = tevent_req_data(
		req, struct smb_time_audit_pwrite_state);
	struct timespec ts2;
	double timediff;

	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&state->ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("pwrite", timediff, state->fsp);
	}

	if (tevent_req_is_unix_error(req, err)) {
		return -1;
	}
	*err = state->err;
	return state->ret;
}

static off_t smb_time_audit_lseek(vfs_handle_struct *handle,
				      files_struct *fsp,
				      off_t offset, int whence)
{
	off_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LSEEK(handle, fsp, offset, whence);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("lseek", timediff, fsp);
	}

	return result;
}

static ssize_t smb_time_audit_sendfile(vfs_handle_struct *handle, int tofd,
				       files_struct *fromfsp,
				       const DATA_BLOB *hdr, off_t offset,
				       size_t n)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SENDFILE(handle, tofd, fromfsp, hdr, offset, n);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("sendfile", timediff, fromfsp);
	}

	return result;
}

static ssize_t smb_time_audit_recvfile(vfs_handle_struct *handle, int fromfd,
				       files_struct *tofsp,
				       off_t offset,
				       size_t n)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_RECVFILE(handle, fromfd, tofsp, offset, n);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("recvfile", timediff, tofsp);
	}

	return result;
}

static int smb_time_audit_rename(vfs_handle_struct *handle,
				 const struct smb_filename *oldname,
				 const struct smb_filename *newname)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_RENAME(handle, oldname, newname);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_smb_fname("rename", timediff, newname);
	}

	return result;
}

static int smb_time_audit_fsync(vfs_handle_struct *handle, files_struct *fsp)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FSYNC(handle, fsp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fsync", timediff, fsp);
	}

	return result;
}

struct smb_time_audit_fsync_state {
	struct files_struct *fsp;
	struct timespec ts1;
	int ret;
	int err;
};

static void smb_time_audit_fsync_done(struct tevent_req *subreq);

static struct tevent_req *smb_time_audit_fsync_send(
	struct vfs_handle_struct *handle, TALLOC_CTX *mem_ctx,
	struct tevent_context *ev, struct files_struct *fsp)
{
	struct tevent_req *req, *subreq;
	struct smb_time_audit_fsync_state *state;

	req = tevent_req_create(mem_ctx, &state,
				struct smb_time_audit_fsync_state);
	if (req == NULL) {
		return NULL;
	}
	clock_gettime_mono(&state->ts1);
	state->fsp = fsp;

	subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, smb_time_audit_fsync_done, req);
	return req;
}

static void smb_time_audit_fsync_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct smb_time_audit_fsync_state *state = tevent_req_data(
		req, struct smb_time_audit_fsync_state);

	state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->err);
	TALLOC_FREE(subreq);
	tevent_req_done(req);
}

static int smb_time_audit_fsync_recv(struct tevent_req *req, int *err)
{
	struct smb_time_audit_fsync_state *state = tevent_req_data(
		req, struct smb_time_audit_fsync_state);
	struct timespec ts2;
	double timediff;

	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&state->ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fsync", timediff, state->fsp);
	}

	if (tevent_req_is_unix_error(req, err)) {
		return -1;
	}
	*err = state->err;
	return state->ret;
}

static int smb_time_audit_stat(vfs_handle_struct *handle,
			       struct smb_filename *fname)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_STAT(handle, fname);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_smb_fname("stat", timediff, fname);
	}

	return result;
}

static int smb_time_audit_fstat(vfs_handle_struct *handle, files_struct *fsp,
				SMB_STRUCT_STAT *sbuf)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fstat", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_lstat(vfs_handle_struct *handle,
				struct smb_filename *path)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LSTAT(handle, path);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_smb_fname("lstat", timediff, path);
	}

	return result;
}

static uint64_t smb_time_audit_get_alloc_size(vfs_handle_struct *handle,
					      files_struct *fsp,
					      const SMB_STRUCT_STAT *sbuf)
{
	uint64_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("get_alloc_size", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_unlink(vfs_handle_struct *handle,
				 const struct smb_filename *path)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_UNLINK(handle, path);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_smb_fname("unlink", timediff, path);
	}

	return result;
}

static int smb_time_audit_chmod(vfs_handle_struct *handle,
				const char *path, mode_t mode)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CHMOD(handle, path, mode);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("chmod", timediff, path);
	}

	return result;
}

static int smb_time_audit_fchmod(vfs_handle_struct *handle, files_struct *fsp,
				 mode_t mode)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fchmod", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_chown(vfs_handle_struct *handle,
				const char *path, uid_t uid, gid_t gid)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("chown", timediff, path);
	}

	return result;
}

static int smb_time_audit_fchown(vfs_handle_struct *handle, files_struct *fsp,
				 uid_t uid, gid_t gid)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FCHOWN(handle, fsp, uid, gid);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fchown", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_lchown(vfs_handle_struct *handle,
				 const char *path, uid_t uid, gid_t gid)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LCHOWN(handle, path, uid, gid);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("lchown", timediff, path);
	}

	return result;
}

static int smb_time_audit_chdir(vfs_handle_struct *handle, const char *path)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CHDIR(handle, path);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("chdir", timediff, path);
	}

	return result;
}

static char *smb_time_audit_getwd(vfs_handle_struct *handle)
{
	char *result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GETWD(handle);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("getwd", timediff);
	}

	return result;
}

static int smb_time_audit_ntimes(vfs_handle_struct *handle,
				 const struct smb_filename *path,
				 struct smb_file_time *ft)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_NTIMES(handle, path, ft);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_smb_fname("ntimes", timediff, path);
	}

	return result;
}

static int smb_time_audit_ftruncate(vfs_handle_struct *handle,
				    files_struct *fsp,
				    off_t len)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("ftruncate", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_fallocate(vfs_handle_struct *handle,
				    files_struct *fsp,
				    enum vfs_fallocate_mode mode,
				    off_t offset,
				    off_t len)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fallocate", timediff, fsp);
	}

	return result;
}

static bool smb_time_audit_lock(vfs_handle_struct *handle, files_struct *fsp,
				int op, off_t offset, off_t count,
				int type)
{
	bool result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LOCK(handle, fsp, op, offset, count, type);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("lock", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_kernel_flock(struct vfs_handle_struct *handle,
				       struct files_struct *fsp,
				       uint32 share_mode, uint32 access_mask)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, share_mode,
					   access_mask);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("kernel_flock", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_linux_setlease(vfs_handle_struct *handle,
					 files_struct *fsp,
					 int leasetype)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, leasetype);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("linux_setlease", timediff, fsp);
	}

	return result;
}

static bool smb_time_audit_getlock(vfs_handle_struct *handle,
				   files_struct *fsp,
				   off_t *poffset, off_t *pcount,
				   int *ptype, pid_t *ppid)
{
	bool result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GETLOCK(handle, fsp, poffset, pcount, ptype,
				      ppid);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("getlock", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_symlink(vfs_handle_struct *handle,
				  const char *oldpath, const char *newpath)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("symlink", timediff, newpath);
	}

	return result;
}

static int smb_time_audit_readlink(vfs_handle_struct *handle,
			  const char *path, char *buf, size_t bufsiz)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("readlink", timediff, path);
	}

	return result;
}

static int smb_time_audit_link(vfs_handle_struct *handle,
			       const char *oldpath, const char *newpath)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("link", timediff, newpath);
	}

	return result;
}

static int smb_time_audit_mknod(vfs_handle_struct *handle,
				const char *pathname, mode_t mode,
				SMB_DEV_T dev)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_MKNOD(handle, pathname, mode, dev);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("mknod", timediff, pathname);
	}

	return result;
}

static char *smb_time_audit_realpath(vfs_handle_struct *handle,
				     const char *path)
{
	char *result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_REALPATH(handle, path);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("realpath", timediff, path);
	}

	return result;
}

static NTSTATUS smb_time_audit_notify_watch(struct vfs_handle_struct *handle,
			struct sys_notify_context *ctx,
			const char *path,
			uint32_t *filter,
			uint32_t *subdir_filter,
			void (*callback)(struct sys_notify_context *ctx,
					void *private_data,
					struct notify_event *ev),
			void *private_data, void *handle_p)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_NOTIFY_WATCH(handle, ctx, path,
					   filter, subdir_filter, callback,
					   private_data, handle_p);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("notify_watch", timediff, path);
	}

	return result;
}

static int smb_time_audit_chflags(vfs_handle_struct *handle,
				  const char *path, unsigned int flags)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CHFLAGS(handle, path, flags);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("chflags", timediff, path);
	}

	return result;
}

static struct file_id smb_time_audit_file_id_create(struct vfs_handle_struct *handle,
						    const SMB_STRUCT_STAT *sbuf)
{
	struct file_id id_zero;
	struct file_id result;
	struct timespec ts1,ts2;
	double timediff;

	ZERO_STRUCT(id_zero);

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FILE_ID_CREATE(handle, sbuf);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("file_id_create", timediff);
	}

	return result;
}

static NTSTATUS smb_time_audit_streaminfo(vfs_handle_struct *handle,
					  struct files_struct *fsp,
					  const char *fname,
					  TALLOC_CTX *mem_ctx,
					  unsigned int *pnum_streams,
					  struct stream_struct **pstreams)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx,
					 pnum_streams, pstreams);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("streaminfo", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_get_real_filename(struct vfs_handle_struct *handle,
					    const char *path,
					    const char *name,
					    TALLOC_CTX *mem_ctx,
					    char **found_name)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name, mem_ctx,
						found_name);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("get_real_filename", timediff, path);
	}

	return result;
}

static const char *smb_time_audit_connectpath(vfs_handle_struct *handle,
					      const char *fname)
{
	const char *result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CONNECTPATH(handle, fname);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("connectpath", timediff, fname);
	}

	return result;
}

static NTSTATUS smb_time_audit_brl_lock_windows(struct vfs_handle_struct *handle,
						struct byte_range_lock *br_lck,
						struct lock_struct *plock,
						bool blocking_lock,
						struct blocking_lock_record *blr)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_BRL_LOCK_WINDOWS(handle, br_lck, plock,
					       blocking_lock, blr);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("brl_lock_windows", timediff,
				       brl_fsp(br_lck));
	}

	return result;
}

static bool smb_time_audit_brl_unlock_windows(struct vfs_handle_struct *handle,
					      struct messaging_context *msg_ctx,
					      struct byte_range_lock *br_lck,
					      const struct lock_struct *plock)
{
	bool result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_BRL_UNLOCK_WINDOWS(handle, msg_ctx, br_lck,
						 plock);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("brl_unlock_windows", timediff,
				       brl_fsp(br_lck));
	}

	return result;
}

static bool smb_time_audit_brl_cancel_windows(struct vfs_handle_struct *handle,
					      struct byte_range_lock *br_lck,
					      struct lock_struct *plock,
					      struct blocking_lock_record *blr)
{
	bool result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_BRL_CANCEL_WINDOWS(handle, br_lck, plock, blr);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("brl_cancel_windows", timediff,
				       brl_fsp(br_lck));
	}

	return result;
}

static bool smb_time_audit_strict_lock(struct vfs_handle_struct *handle,
				       struct files_struct *fsp,
				       struct lock_struct *plock)
{
	bool result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_STRICT_LOCK(handle, fsp, plock);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("strict_lock", timediff, fsp);
	}

	return result;
}

static void smb_time_audit_strict_unlock(struct vfs_handle_struct *handle,
					 struct files_struct *fsp,
					 struct lock_struct *plock)
{
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	SMB_VFS_NEXT_STRICT_UNLOCK(handle, fsp, plock);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("strict_unlock", timediff, fsp);
	}
}

static NTSTATUS smb_time_audit_translate_name(struct vfs_handle_struct *handle,
					      const char *name,
					      enum vfs_translate_direction direction,
					      TALLOC_CTX *mem_ctx,
					      char **mapped_name)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_TRANSLATE_NAME(handle, name, direction, mem_ctx,
					     mapped_name);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("translate_name", timediff, name);
	}

	return result;
}

struct time_audit_cc_state {
	struct timespec ts_send;
	struct vfs_handle_struct *handle;
	off_t copied;
};
static void smb_time_audit_copy_chunk_done(struct tevent_req *subreq);

static struct tevent_req *smb_time_audit_copy_chunk_send(struct vfs_handle_struct *handle,
							 TALLOC_CTX *mem_ctx,
							 struct tevent_context *ev,
							 struct files_struct *src_fsp,
							 off_t src_off,
							 struct files_struct *dest_fsp,
							 off_t dest_off,
							 off_t num)
{
	struct tevent_req *req;
	struct tevent_req *subreq;
	struct time_audit_cc_state *cc_state;

	req = tevent_req_create(mem_ctx, &cc_state, struct time_audit_cc_state);
	if (req == NULL) {
		return NULL;
	}

	cc_state->handle = handle;
	clock_gettime_mono(&cc_state->ts_send);
	subreq = SMB_VFS_NEXT_COPY_CHUNK_SEND(handle, cc_state, ev,
					      src_fsp, src_off,
					      dest_fsp, dest_off, num);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}

	tevent_req_set_callback(subreq, smb_time_audit_copy_chunk_done, req);
	return req;
}

static void smb_time_audit_copy_chunk_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct time_audit_cc_state *cc_state
			= tevent_req_data(req, struct time_audit_cc_state);
	NTSTATUS status;

	status = SMB_VFS_NEXT_COPY_CHUNK_RECV(cc_state->handle,
					      subreq,
					      &cc_state->copied);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

static NTSTATUS smb_time_audit_copy_chunk_recv(struct vfs_handle_struct *handle,
					       struct tevent_req *req,
					       off_t *copied)
{
	struct time_audit_cc_state *cc_state
			= tevent_req_data(req, struct time_audit_cc_state);
	struct timespec ts_recv;
	double timediff;
	NTSTATUS status;

	clock_gettime_mono(&ts_recv);
	timediff = nsec_time_diff(&ts_recv, &cc_state->ts_send)*1.0e-9;
	if (timediff > audit_timeout) {
		smb_time_audit_log("copy_chunk", timediff);
	}

	*copied = cc_state->copied;
	if (tevent_req_is_nterror(req, &status)) {
		tevent_req_received(req);
		return status;
	}

	tevent_req_received(req);
	return NT_STATUS_OK;
}

static NTSTATUS smb_time_audit_fget_nt_acl(vfs_handle_struct *handle,
					   files_struct *fsp,
					   uint32 security_info,
					   TALLOC_CTX *mem_ctx,
					   struct security_descriptor **ppdesc)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
					  mem_ctx, ppdesc);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fget_nt_acl", timediff, fsp);
	}

	return result;
}

static NTSTATUS smb_time_audit_get_nt_acl(vfs_handle_struct *handle,
					  const char *name,
					  uint32 security_info,
					  TALLOC_CTX *mem_ctx,
					  struct security_descriptor **ppdesc)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info,
					 mem_ctx, ppdesc);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("get_nt_acl", timediff, name);
	}

	return result;
}

static NTSTATUS smb_time_audit_fset_nt_acl(vfs_handle_struct *handle,
					   files_struct *fsp,
					   uint32 security_info_sent,
					   const struct security_descriptor *psd)
{
	NTSTATUS result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent,
					  psd);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fset_nt_acl", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_chmod_acl(vfs_handle_struct *handle,
				    const char *path, mode_t mode)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_CHMOD_ACL(handle, path, mode);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("chmod_acl", timediff, path);
	}

	return result;
}

static int smb_time_audit_fchmod_acl(vfs_handle_struct *handle,
				     files_struct *fsp, mode_t mode)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, mode);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fchmod_acl", timediff, fsp);
	}

	return result;
}

static SMB_ACL_T smb_time_audit_sys_acl_get_file(vfs_handle_struct *handle,
						 const char *path_p,
						 SMB_ACL_TYPE_T type,
						 TALLOC_CTX *mem_ctx)
{
	SMB_ACL_T result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p, type, mem_ctx);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("sys_acl_get_file", timediff, path_p);
	}

	return result;
}

static SMB_ACL_T smb_time_audit_sys_acl_get_fd(vfs_handle_struct *handle,
					       files_struct *fsp,
					       TALLOC_CTX *mem_ctx)
{
	SMB_ACL_T result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("sys_acl_get_fd", timediff, fsp);
	}

	return result;
}


static int smb_time_audit_sys_acl_blob_get_file(vfs_handle_struct *handle,
						const char *path_p,
						TALLOC_CTX *mem_ctx, 
						char **blob_description,
						DATA_BLOB *blob)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p, mem_ctx, blob_description, blob);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("sys_acl_blob_get_file", timediff);
	}

	return result;
}

static int smb_time_audit_sys_acl_blob_get_fd(vfs_handle_struct *handle,
					      files_struct *fsp,
					      TALLOC_CTX *mem_ctx, 
					      char **blob_description,
					      DATA_BLOB *blob)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx, blob_description, blob);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log("sys_acl_blob_get_fd", timediff);
	}

	return result;
}

static int smb_time_audit_sys_acl_set_file(vfs_handle_struct *handle,
					   const char *name,
					   SMB_ACL_TYPE_T acltype,
					   SMB_ACL_T theacl)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, acltype,
					       theacl);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("sys_acl_set_file", timediff, name);
	}

	return result;
}

static int smb_time_audit_sys_acl_set_fd(vfs_handle_struct *handle,
					 files_struct *fsp,
					 SMB_ACL_T theacl)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("sys_acl_set_fd", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_sys_acl_delete_def_file(vfs_handle_struct *handle,
						  const char *path)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("sys_acl_delete_def_file", timediff, path);
	}

	return result;
}

static ssize_t smb_time_audit_getxattr(struct vfs_handle_struct *handle,
				       const char *path, const char *name,
				       void *value, size_t size)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("getxattr", timediff, path);
	}

	return result;
}

static ssize_t smb_time_audit_fgetxattr(struct vfs_handle_struct *handle,
					struct files_struct *fsp,
					const char *name, void *value,
					size_t size)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FGETXATTR(handle, fsp, name, value, size);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fgetxattr", timediff, fsp);
	}

	return result;
}

static ssize_t smb_time_audit_listxattr(struct vfs_handle_struct *handle,
					const char *path, char *list,
					size_t size)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("listxattr", timediff, path);
	}

	return result;
}

static ssize_t smb_time_audit_flistxattr(struct vfs_handle_struct *handle,
					 struct files_struct *fsp, char *list,
					 size_t size)
{
	ssize_t result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FLISTXATTR(handle, fsp, list, size);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("flistxattr", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_removexattr(struct vfs_handle_struct *handle,
				      const char *path, const char *name)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("removexattr", timediff, path);
	}

	return result;
}

static int smb_time_audit_fremovexattr(struct vfs_handle_struct *handle,
				       struct files_struct *fsp,
				       const char *name)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fremovexattr", timediff, fsp);
	}

	return result;
}

static int smb_time_audit_setxattr(struct vfs_handle_struct *handle,
				   const char *path, const char *name,
				   const void *value, size_t size,
				   int flags)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_SETXATTR(handle, path, name, value, size,
				       flags);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fname("setxattr", timediff, path);
	}

	return result;
}

static int smb_time_audit_fsetxattr(struct vfs_handle_struct *handle,
				    struct files_struct *fsp, const char *name,
				    const void *value, size_t size, int flags)
{
	int result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_FSETXATTR(handle, fsp, name, value, size, flags);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("fsetxattr", timediff, fsp);
	}

	return result;
}

static bool smb_time_audit_aio_force(struct vfs_handle_struct *handle,
				     struct files_struct *fsp)
{
	bool result;
	struct timespec ts1,ts2;
	double timediff;

	clock_gettime_mono(&ts1);
	result = SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
	clock_gettime_mono(&ts2);
	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;

	if (timediff > audit_timeout) {
		smb_time_audit_log_fsp("aio_force", timediff, fsp);
	}

	return result;
}



/* VFS operations */

static struct vfs_fn_pointers vfs_time_audit_fns = {
	.connect_fn = smb_time_audit_connect,
	.disconnect_fn = smb_time_audit_disconnect,
	.disk_free_fn = smb_time_audit_disk_free,
	.get_quota_fn = smb_time_audit_get_quota,
	.set_quota_fn = smb_time_audit_set_quota,
	.get_shadow_copy_data_fn = smb_time_audit_get_shadow_copy_data,
	.statvfs_fn = smb_time_audit_statvfs,
	.fs_capabilities_fn = smb_time_audit_fs_capabilities,
	.opendir_fn = smb_time_audit_opendir,
	.fdopendir_fn = smb_time_audit_fdopendir,
	.readdir_fn = smb_time_audit_readdir,
	.seekdir_fn = smb_time_audit_seekdir,
	.telldir_fn = smb_time_audit_telldir,
	.rewind_dir_fn = smb_time_audit_rewinddir,
	.mkdir_fn = smb_time_audit_mkdir,
	.rmdir_fn = smb_time_audit_rmdir,
	.closedir_fn = smb_time_audit_closedir,
	.init_search_op_fn = smb_time_audit_init_search_op,
	.open_fn = smb_time_audit_open,
	.create_file_fn = smb_time_audit_create_file,
	.close_fn = smb_time_audit_close,
	.read_fn = smb_time_audit_read,
	.pread_fn = smb_time_audit_pread,
	.pread_send_fn = smb_time_audit_pread_send,
	.pread_recv_fn = smb_time_audit_pread_recv,
	.write_fn = smb_time_audit_write,
	.pwrite_fn = smb_time_audit_pwrite,
	.pwrite_send_fn = smb_time_audit_pwrite_send,
	.pwrite_recv_fn = smb_time_audit_pwrite_recv,
	.lseek_fn = smb_time_audit_lseek,
	.sendfile_fn = smb_time_audit_sendfile,
	.recvfile_fn = smb_time_audit_recvfile,
	.rename_fn = smb_time_audit_rename,
	.fsync_fn = smb_time_audit_fsync,
	.fsync_send_fn = smb_time_audit_fsync_send,
	.fsync_recv_fn = smb_time_audit_fsync_recv,
	.stat_fn = smb_time_audit_stat,
	.fstat_fn = smb_time_audit_fstat,
	.lstat_fn = smb_time_audit_lstat,
	.get_alloc_size_fn = smb_time_audit_get_alloc_size,
	.unlink_fn = smb_time_audit_unlink,
	.chmod_fn = smb_time_audit_chmod,
	.fchmod_fn = smb_time_audit_fchmod,
	.chown_fn = smb_time_audit_chown,
	.fchown_fn = smb_time_audit_fchown,
	.lchown_fn = smb_time_audit_lchown,
	.chdir_fn = smb_time_audit_chdir,
	.getwd_fn = smb_time_audit_getwd,
	.ntimes_fn = smb_time_audit_ntimes,
	.ftruncate_fn = smb_time_audit_ftruncate,
	.fallocate_fn = smb_time_audit_fallocate,
	.lock_fn = smb_time_audit_lock,
	.kernel_flock_fn = smb_time_audit_kernel_flock,
	.linux_setlease_fn = smb_time_audit_linux_setlease,
	.getlock_fn = smb_time_audit_getlock,
	.symlink_fn = smb_time_audit_symlink,
	.readlink_fn = smb_time_audit_readlink,
	.link_fn = smb_time_audit_link,
	.mknod_fn = smb_time_audit_mknod,
	.realpath_fn = smb_time_audit_realpath,
	.notify_watch_fn = smb_time_audit_notify_watch,
	.chflags_fn = smb_time_audit_chflags,
	.file_id_create_fn = smb_time_audit_file_id_create,
	.streaminfo_fn = smb_time_audit_streaminfo,
	.get_real_filename_fn = smb_time_audit_get_real_filename,
	.connectpath_fn = smb_time_audit_connectpath,
	.brl_lock_windows_fn = smb_time_audit_brl_lock_windows,
	.brl_unlock_windows_fn = smb_time_audit_brl_unlock_windows,
	.brl_cancel_windows_fn = smb_time_audit_brl_cancel_windows,
	.strict_lock_fn = smb_time_audit_strict_lock,
	.strict_unlock_fn = smb_time_audit_strict_unlock,
	.translate_name_fn = smb_time_audit_translate_name,
	.copy_chunk_send_fn = smb_time_audit_copy_chunk_send,
	.copy_chunk_recv_fn = smb_time_audit_copy_chunk_recv,
	.fget_nt_acl_fn = smb_time_audit_fget_nt_acl,
	.get_nt_acl_fn = smb_time_audit_get_nt_acl,
	.fset_nt_acl_fn = smb_time_audit_fset_nt_acl,
	.chmod_acl_fn = smb_time_audit_chmod_acl,
	.fchmod_acl_fn = smb_time_audit_fchmod_acl,
	.sys_acl_get_file_fn = smb_time_audit_sys_acl_get_file,
	.sys_acl_get_fd_fn = smb_time_audit_sys_acl_get_fd,
	.sys_acl_blob_get_file_fn = smb_time_audit_sys_acl_blob_get_file,
	.sys_acl_blob_get_fd_fn = smb_time_audit_sys_acl_blob_get_fd,
	.sys_acl_set_file_fn = smb_time_audit_sys_acl_set_file,
	.sys_acl_set_fd_fn = smb_time_audit_sys_acl_set_fd,
	.sys_acl_delete_def_file_fn = smb_time_audit_sys_acl_delete_def_file,
	.getxattr_fn = smb_time_audit_getxattr,
	.fgetxattr_fn = smb_time_audit_fgetxattr,
	.listxattr_fn = smb_time_audit_listxattr,
	.flistxattr_fn = smb_time_audit_flistxattr,
	.removexattr_fn = smb_time_audit_removexattr,
	.fremovexattr_fn = smb_time_audit_fremovexattr,
	.setxattr_fn = smb_time_audit_setxattr,
	.fsetxattr_fn = smb_time_audit_fsetxattr,
	.aio_force_fn = smb_time_audit_aio_force,
};


NTSTATUS vfs_time_audit_init(void);
NTSTATUS vfs_time_audit_init(void)
{
	audit_timeout = (double)lp_parm_int(-1, "time_audit", "timeout",
					    10000) / 1000.0;
	return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "time_audit",
				&vfs_time_audit_fns);
}