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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/sys/imgact.h,v 1.22.2.2 2001/12/22 01:21:44 jwd Exp $ 34 * $DragonFly: src/sys/sys/imgact.h,v 1.3 2003/08/20 07:31:21 rob Exp $ 35 */ 36 37 #ifndef _SYS_IMGACT_H_ 38 #define _SYS_IMGACT_H_ 39 40 #define MAXSHELLCMDLEN 128 41 42 struct image_params { 43 struct proc *proc; /* our process struct */ 44 struct execve_args *uap; /* syscall arguments */ 45 struct vnode *vp; /* pointer to vnode of file to exec */ 46 struct vattr *attr; /* attributes of file */ 47 const char *image_header; /* head of file to exec */ 48 char *stringbase; /* base address of tmp string storage */ 49 char *stringp; /* current 'end' pointer of tmp strings */ 50 char *endargs; /* end of argv vector */ 51 int stringspace; /* space left in tmp string storage area */ 52 int argc, envc; /* count of argument and environment strings */ 53 char *argv0; /* Replacement for argv[0] when interpreting */ 54 unsigned long entry_addr; /* entry address of target executable */ 55 char vmspace_destroyed; /* flag - we've blown away original vm space */ 56 char interpreted; /* flag - this executable is interpreted */ 57 char interpreter_name[MAXSHELLCMDLEN]; /* name of the interpreter */ 58 void *auxargs; /* ELF Auxinfo structure pointer */ 59 struct vm_page *firstpage; /* first page that we mapped */ 60 char *fname; /* pointer to filename of executable (user space) */ 61 unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */ 62 }; 63 64 #ifdef _KERNEL 65 int exec_check_permissions (struct image_params *); 66 int exec_extract_strings (struct image_params *); 67 int exec_new_vmspace (struct image_params *); 68 int exec_shell_imgact (struct image_params *); 69 #endif 70 71 #endif /* !_SYS_IMGACT_H_ */ 72