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/*
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 * Copyright (c) 2005-2007, Kohsuke Ohtani
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the author nor the names of any co-contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#ifndef _EXEC_H
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#define _EXEC_H
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#include <sys/cdefs.h>
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#include <sys/prex.h>
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#include <sys/elf.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <ipc/exec.h>
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#include <unistd.h>
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#include <assert.h>
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/* #define DEBUG_EXEC 1 */
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#ifdef DEBUG_EXEC
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#define DPRINTF(a)        dprintf a
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#define ASSERT(e)        dassert(e)
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#else
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#define DPRINTF(a)
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#define ASSERT(e)
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#endif
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#define HEADER_SIZE        512
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/*
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 * Exec descriptor
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 */
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struct exec {
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        char        *path;                        /* path name */
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        void        *header;                /* buffer for header */
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        char        *xarg1;                        /* extra arguments */
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        char        *xarg2;                        /* extra arguments */
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        task_t        task;                        /* task id */
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        vaddr_t        entry;                        /* entry address */
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};
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/*
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 * Definition for exec loader
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 */
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struct exec_loader {
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        const char *el_name;                /* name of loader */
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        void        (*el_init)(void);        /* initialize routine */
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        int        (*el_probe)(struct exec *);        /* probe routine */
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        int        (*el_load)(struct exec *);        /* load routine */
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};
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/*
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 * Probe result
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 */
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#define PROBE_ERROR                0
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#define PROBE_MATCH                1
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#define PROBE_INDIRECT                2
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/*
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 * Capability mapping
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 */
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struct cap_map {
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        char        *c_path;                /* application name */
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        cap_t        c_capset;                /* capability set */
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};
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/*
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 * Global variables
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 */
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extern struct exec_loader loader_table[];
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extern const struct cap_map cap_table[];
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extern const int nloader;
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__BEGIN_DECLS
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void         bind_cap(char *, task_t);
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int         exec_bindcap(struct bind_msg *);
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int         exec_execve(struct exec_msg *);
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__END_DECLS
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#endif /* !_EXEC_H */