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   1 /*
   2  * Copyright (c) 2005-2007, Kohsuke Ohtani
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  30 #ifndef _EXEC_H
  31 #define _EXEC_H
  33 #include <sys/cdefs.h>
  34 #include <sys/prex.h>
  35 #include <sys/elf.h>
  36 #include <sys/param.h>
  37 #include <sys/stat.h>
  38 #include <ipc/exec.h>
  40 #include <unistd.h>
  41 #include <assert.h>
  43 /* #define DEBUG_EXEC 1 */
  45 #ifdef DEBUG_EXEC
  46 #define DPRINTF(a)      dprintf a
  47 #define ASSERT(e)       dassert(e)
  48 #else
  49 #define DPRINTF(a)
  50 #define ASSERT(e)
  51 #endif
  53 #define HEADER_SIZE     512
  55 /*
  56  * Exec descriptor
  57  */
  58 struct exec {
  59         char    *path;                  /* path name */
  60         void    *header;                /* buffer for header */
  61         char    *xarg1;                 /* extra arguments */
  62         char    *xarg2;                 /* extra arguments */
task_t  task;                   /* task id */
vaddr_t entry;                  /* entry address */
  65 };
  67 /*
  68  * Definition for exec loader
  69  */
  70 struct exec_loader {
  71         const char *el_name;            /* name of loader */
  72         void    (*el_init)(void);       /* initialize routine */
  73         int     (*el_probe)(struct exec *);     /* probe routine */
  74         int     (*el_load)(struct exec *);      /* load routine */
  75 };
  77 /*
  78  * Probe result
  79  */
  80 #define PROBE_ERROR             0
  81 #define PROBE_MATCH             1
  82 #define PROBE_INDIRECT          2
  85 /*
  86  * Capability mapping
  87  */
  88 struct cap_map {
  89         char    *c_path;                /* application name */
cap_t   c_capset;               /* capability set */
  91 };
  93 /*
  94  * Global variables
  95  */
  96 extern struct exec_loader loader_table[];
  97 extern const struct cap_map cap_table[];
  98 extern const int nloader;
__BEGIN_DECLS
 101 void     bind_cap(char *, task_t);
 102 int      exec_bindcap(struct bind_msg *);
 103 int      exec_execve(struct exec_msg *);
__END_DECLS
 106 #endif /* !_EXEC_H */