120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/* $NetBSD: rumpcopy.c,v 1.5 2010/07/18 12:44:31 pooka Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2009 Antti Kantee. All Rights Reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
|
|
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: rumpcopy.c,v 1.5 2010/07/18 12:44:31 pooka Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/lwp.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <rump/rump.h>
|
|
|
|
#include "rump_private.h"
|
|
|
|
int
|
|
copyin(const void *uaddr, void *kaddr, size_t len)
|
|
{
|
|
|
|
if (curproc->p_vmspace == &vmspace0) {
|
|
if (__predict_false(uaddr == NULL && len)) {
|
|
return EFAULT;
|
|
}
|
|
memcpy(kaddr, uaddr, len);
|
|
} else {
|
|
rump_sysproxy_copyin(uaddr, kaddr, len);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
copyout(const void *kaddr, void *uaddr, size_t len)
|
|
{
|
|
|
|
if (curproc->p_vmspace == &vmspace0) {
|
|
if (__predict_false(uaddr == NULL && len)) {
|
|
return EFAULT;
|
|
}
|
|
memcpy(uaddr, kaddr, len);
|
|
} else {
|
|
rump_sysproxy_copyout(kaddr, uaddr, len);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
subyte(void *uaddr, int byte)
|
|
{
|
|
|
|
if (curproc->p_vmspace == &vmspace0)
|
|
*(char *)uaddr = byte;
|
|
else
|
|
rump_sysproxy_copyout(&byte, uaddr, 1);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done)
|
|
{
|
|
|
|
return copyinstr(kfaddr, kdaddr, len, done);
|
|
}
|
|
|
|
int
|
|
copyinstr(const void *uaddr, void *kaddr, size_t len, size_t *done)
|
|
{
|
|
|
|
if (curproc->p_vmspace == &vmspace0)
|
|
strlcpy(kaddr, uaddr, len);
|
|
else
|
|
rump_sysproxy_copyin(uaddr, kaddr, len);
|
|
if (done)
|
|
*done = strlen(kaddr)+1; /* includes termination */
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
copyoutstr(const void *kaddr, void *uaddr, size_t len, size_t *done)
|
|
{
|
|
|
|
if (curproc->p_vmspace == &vmspace0)
|
|
strlcpy(uaddr, kaddr, len);
|
|
else
|
|
rump_sysproxy_copyout(kaddr, uaddr, len);
|
|
if (done)
|
|
*done = strlen(uaddr)+1; /* includes termination */
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
kcopy(const void *src, void *dst, size_t len)
|
|
{
|
|
|
|
memcpy(dst, src, len);
|
|
return 0;
|
|
}
|