Colony » Colony Scout » Colony Scout OS

/*

 * Copyright (c) 2005-2007, Kohsuke Ohtani

 * 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.

 * 3. Neither the name of the author nor the names of any co-contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * 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.

 */

#ifndef _EXEC_H

#define _EXEC_H

#include <sys/cdefs.h>

#include <sys/prex.h>

#include <sys/elf.h>

#include <sys/param.h>

#include <sys/stat.h>

#include <ipc/exec.h>

#include <unistd.h>

#include <assert.h>

/* #define DEBUG_EXEC 1 */

#ifdef DEBUG_EXEC

#define DPRINTF(a)        dprintf a

#define ASSERT(e)        dassert(e)

#else

#define DPRINTF(a)

#define ASSERT(e)

#endif

#define HEADER_SIZE        512

/*

 * Exec descriptor

 */

struct exec {

        char        *path;                        /* path name */

        void        *header;                /* buffer for header */

        char        *xarg1;                        /* extra arguments */

        char        *xarg2;                        /* extra arguments */

        task_t        task;                        /* task id */

        vaddr_t        entry;                        /* entry address */

};

/*

 * Definition for exec loader

 */

struct exec_loader {

        const char *el_name;                /* name of loader */

        void        (*el_init)(void);        /* initialize routine */

        int        (*el_probe)(struct exec *);        /* probe routine */

        int        (*el_load)(struct exec *);        /* load routine */

};

/*

 * Probe result

 */

#define PROBE_ERROR                0

#define PROBE_MATCH                1

#define PROBE_INDIRECT                2

/*

 * Capability mapping

 */

struct cap_map {

        char        *c_path;                /* application name */

        cap_t        c_capset;                /* capability set */

};

/*

 * Global variables

 */

extern struct exec_loader loader_table[];

extern const struct cap_map cap_table[];

extern const int nloader;

__BEGIN_DECLS

void         bind_cap(char *, task_t);

int         exec_bindcap(struct bind_msg *);

int         exec_execve(struct exec_msg *);

__END_DECLS

#endif /* !_EXEC_H */