sys/sys/imgact.h

   1 /*-
   2  * Copyright (c) 1993, David Greenman
   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 University nor the names of its 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 REGENTS 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  *
  29  * $FreeBSD: src/sys/sys/imgact.h,v 1.22.2.2 2001/12/22 01:21:44 jwd Exp $
  30  * $DragonFly: src/sys/sys/imgact.h,v 1.6 2004/04/11 00:10:34 dillon Exp $
  31  */
  32
  33 #ifndef _SYS_IMGACT_H_
  34 #define _SYS_IMGACT_H_
  35
  36 #include <sys/mount.h>
  37 #include <cpu/lwbuf.h>
  38
  39 #define MAXSHELLCMDLEN  128
  40
  41 struct image_args {
  42         char *buf;              /* pointer to string buffer */
  43         char *begin_argv;       /* beginning of argv in buf */
  44         char *begin_envv;       /* beginning of envv in buf */
  45         char *endp;             /* current `end' pointer of arg & env strings */
  46         char *fname;            /* beginning of file name */
  47         int space;              /* space left in arg & env buffer */
  48         int argc;               /* count of argument strings */
  49         int envc;               /* count of environment strings */
  50 };
  51
  52 struct image_params {
  53         struct proc *proc;      /* our process struct */
  54         struct image_args *args;        /* syscall arguments */
  55         struct vnode *vp;       /* pointer to vnode of file to exec */
  56         struct vattr *attr;     /* attributes of file */
  57         const char *image_header; /* head of file to exec */
  58         unsigned long entry_addr; /* entry address of target executable */
  59         char resident;          /* flag - resident image */
  60         char vmspace_destroyed; /* flag - we've blown away original vm space */
  61         char interpreted;       /* flag - this executable is interpreted */
  62         char interpreter_name[MAXSHELLCMDLEN]; /* name of the interpreter */
  63         void *auxargs;          /* ELF Auxinfo structure pointer */
  64         struct lwbuf *firstpage;        /* first page that we mapped */
  65         struct lwbuf firstpage_cache;
  66         unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
  67         char *execpath;
  68         unsigned long execpathp;
  69         char *freepath;
  70 };
  71
  72 #ifdef _KERNEL
  73 enum    exec_path_segflg {PATH_SYSSPACE, PATH_USERSPACE};
  74
  75 struct vmspace;
  76 int     exec_resident_imgact (struct image_params *);
  77 int     exec_check_permissions (struct image_params *, struct mount *);
  78 int     exec_new_vmspace (struct image_params *, struct vmspace *vmres);
  79 int     exec_shell_imgact (struct image_params *);
  80 int     exec_copyin_args(struct image_args *, char *, enum exec_path_segflg,
  81         char **, char **);
  82 void    exec_free_args(struct image_args *);
  83 #endif
  84
  85 #endif /* !_SYS_IMGACT_H_ */