115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*-
|
|
* Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com>
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by BAE Systems, the University of Cambridge
|
|
* Computer Laboratory, and Memorial University under DARPA/AFRL contract
|
|
* FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
|
|
* (TC) research program.
|
|
*
|
|
* 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 AND CONTRIBUTORS ``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/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/capsicum.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/file.h>
|
|
#include <sys/proc.h>
|
|
|
|
#include <machine/sgx.h>
|
|
#include <machine/../linux/linux.h>
|
|
#include <machine/../linux/linux_proto.h>
|
|
#include <compat/linux/linux_ioctl.h>
|
|
|
|
#include <amd64/sgx/sgxvar.h>
|
|
|
|
#include <sys/ioccom.h>
|
|
|
|
#define SGX_LINUX_IOCTL_MIN (SGX_IOC_ENCLAVE_CREATE & 0xffff)
|
|
#define SGX_LINUX_IOCTL_MAX (SGX_IOC_ENCLAVE_INIT & 0xffff)
|
|
|
|
static int
|
|
sgx_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
|
|
{
|
|
uint8_t data[SGX_IOCTL_MAX_DATA_LEN];
|
|
cap_rights_t rights;
|
|
struct file *fp;
|
|
u_long cmd;
|
|
int error;
|
|
int len;
|
|
|
|
error = fget(td, args->fd, cap_rights_init_one(&rights, CAP_IOCTL),
|
|
&fp);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
cmd = args->cmd;
|
|
|
|
args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
|
|
if ((cmd & LINUX_IOC_IN) != 0)
|
|
args->cmd |= IOC_IN;
|
|
if ((cmd & LINUX_IOC_OUT) != 0)
|
|
args->cmd |= IOC_OUT;
|
|
|
|
len = IOCPARM_LEN(cmd);
|
|
if (len > SGX_IOCTL_MAX_DATA_LEN) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if ((cmd & LINUX_IOC_IN) != 0) {
|
|
error = copyin((void *)args->arg, data, len);
|
|
if (error != 0)
|
|
goto out;
|
|
}
|
|
|
|
error = fo_ioctl(fp, args->cmd, (caddr_t)data, td->td_ucred, td);
|
|
out:
|
|
fdrop(fp, td);
|
|
return (error);
|
|
}
|
|
|
|
static struct linux_ioctl_handler sgx_linux_handler = {
|
|
sgx_linux_ioctl,
|
|
SGX_LINUX_IOCTL_MIN,
|
|
SGX_LINUX_IOCTL_MAX,
|
|
};
|
|
|
|
SYSINIT(sgx_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
|
|
linux_ioctl_register_handler, &sgx_linux_handler);
|
|
SYSUNINIT(sgx_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
|
|
linux_ioctl_unregister_handler, &sgx_linux_handler);
|
|
|
|
static int
|
|
sgx_linux_modevent(module_t mod, int type, void *data)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
DEV_MODULE(sgx_linux, sgx_linux_modevent, NULL);
|
|
MODULE_DEPEND(sgx_linux, linux64, 1, 1, 1);
|