flask_op.c

xen虚拟机源代码安装包

/*
 *
 *  Authors:  Michael LeMay, <[e-mail]>
 *            George Coker, <[e-mail]>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2,
 *  as published by the Free Software Foundation.
 */

#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/ioctl.h>
#include <flask.h>
#include <xenctrl.h>

int flask_load(int xc_handle, char *buf, uint32_t size)
{
    int err;
    flask_op_t op;
    
    op.cmd = FLASK_LOAD;
    op.buf = buf;
    op.size = size;
    
    if ( (err = xc_flask_op(xc_handle, &op)) != 0 )
        return err;

    return 0;
}

int flask_context_to_sid(int xc_handle, char *buf, uint32_t size, uint32_t *sid)
{
    int err;
    flask_op_t op;
    
    op.cmd = FLASK_CONTEXT_TO_SID;
    op.buf = buf;
    op.size = size;
    
    if ( (err = xc_flask_op(xc_handle, &op)) != 0 )
        return err;
    
    sscanf(buf, "%u", sid);

    return 0;
}

int flask_sid_to_context(int xc_handle, int sid, char *buf, uint32_t size)
{
    int err;
    flask_op_t op;
    
    op.cmd = FLASK_SID_TO_CONTEXT;
    op.buf = buf;
    op.size = size;
    
    snprintf(buf, size, "%u", sid);

    if ( (err = xc_flask_op(xc_handle, &op)) != 0 )
        return err;

    return 0;
}