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/*********************************************************
* Copyright (C) 1998 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no 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 Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* hgfsUtil.h --
*
* Utility functions and macros used by hgfs.
*/
#ifndef _HGFSUTIL_H_
# define _HGFSUTIL_H_
# if defined __linux__ && defined __KERNEL__
# include "driver-config.h"
# include <linux/time.h> // for time_t and timespec
/* Include time.h in userspace code, but not in Solaris kernel code. */
# elif defined __FreeBSD__ && defined _KERNEL
/* Do nothing. */
# elif defined __APPLE__ && defined KERNEL
# include <sys/time.h>
# else
# include <time.h>
# endif
# include "vm_basic_types.h"
# if !defined _STRUCT_TIMESPEC && \
!defined _TIMESPEC_DECLARED && \
!defined __timespec_defined && \
!defined sun && \
!defined __FreeBSD__ && \
!__APPLE__ && \
!defined _WIN32
struct timespec {
time_t tv_sec;
long tv_nsec;
};
# endif
# include "hgfs.h"
/* Cross-platform representation of a platform-specific error code. */
#ifndef _WIN32
# if defined __KERNEL__ || defined _KERNEL || defined KERNEL
# if defined __linux__
# include <linux/errno.h>
# elif defined sun || defined __FreeBSD__ || defined __APPLE__
# include <sys/errno.h>
# endif
# else
# include <errno.h>
# endif
typedef int HgfsInternalStatus;
#else
# include <windows.h>
typedef DWORD HgfsInternalStatus;
#endif
/*
* Unfortunately, we need a catch-all "generic error" to use with
* HgfsInternalStatus, because there are times when cross-platform code needs
* to return its own errors along with errors from platform specific code.
*
* Using -1 should be safe because we expect our platforms to use zero as
* success and a positive range of numbers as error values.
*/
#define HGFS_INTERNAL_STATUS_ERROR (-1)
#ifndef _WIN32
/*
* This error code is used to notify the client that some of the parameters passed
* (e.g. file handles) are not supported. Clients are expected to correct
* the parameter (e.g. pass file name instead) and retry.
*
* Note that this error code is artificially made up and in future may conflict
* with an "official" error code when added.
*/
#define EPARAMETERNOTSUPPORTED (MAX_INT32 - 1)
#endif
/*
* FreeBSD (pre-6.0) does not define EPROTO, so we'll define our own error code.
*/
#if defined __FreeBSD__ && !defined EPROTO
#define EPROTO (ELAST + 1)
#endif
#define HGFS_NAME_BUFFER_SIZE(request) (HGFS_PACKET_MAX - (sizeof *request - 1))
#define HGFS_NAME_BUFFER_SIZET(sizet) (HGFS_PACKET_MAX - ((sizet) - 1))
#ifndef _WIN32
/*
* Routines for converting between Win NT and unix time formats. The
* hgfs attributes use the NT time formats, so the linux driver and
* server have to convert back and forth. [bac]
*/
uint64 HgfsConvertToNtTime(time_t unixTime, // IN
long nsec); // IN
static INLINE uint64
HgfsConvertTimeSpecToNtTime(const struct timespec *unixTime) // IN
{
return HgfsConvertToNtTime(unixTime->tv_sec, unixTime->tv_nsec);
}
int HgfsConvertFromNtTime(time_t * unixTime, // OUT
uint64 ntTime); // IN
int HgfsConvertFromNtTimeNsec(struct timespec *unixTime, // OUT
uint64 ntTime); // IN
#endif /* !def(_WIN32) */
HgfsStatus HgfsConvertFromInternalStatus(HgfsInternalStatus status); // IN
#endif /* _HGFSUTIL_H_ */
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