FreeBSD/Linux Kernel Cross Reference
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 * 4. 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 1.36 2004/04/24 06:44:33 bde Exp $
30 */
31
32 #ifndef _SYS_IMGACT_H_
33 #define _SYS_IMGACT_H_
34
35 #define MAXSHELLCMDLEN 128
36
37 struct image_params {
38 struct proc *proc; /* our process struct */
39 char **userspace_argv; /* system call argument */
40 char **userspace_envv; /* system call argument */
41 struct label *execlabel; /* optional exec label */
42 struct vnode *vp; /* pointer to vnode of file to exec */
43 struct vm_object *object; /* The vm object for this vp */
44 struct vattr *attr; /* attributes of file */
45 const char *image_header; /* head of file to exec */
46 char *stringbase; /* base address of tmp string storage */
47 char *stringp; /* current 'end' pointer of tmp strings */
48 char *endargs; /* end of argv vector */
49 int stringspace; /* space left in tmp string storage area */
50 int argc, envc; /* count of argument and environment strings */
51 char *argv0; /* Replacement for argv[0] when interpreting */
52 unsigned long entry_addr; /* entry address of target executable */
53 char vmspace_destroyed; /* flag - we've blown away original vm space */
54 char interpreted; /* flag - this executable is interpreted */
55 char interpreter_name[MAXSHELLCMDLEN]; /* name of the interpreter */
56 void *auxargs; /* ELF Auxinfo structure pointer */
57 struct sf_buf *firstpage; /* first page that we mapped */
58 char *fname; /* pointer to filename of executable (user space) */
59 unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
60 size_t auxarg_size;
61 };
62
63 #ifdef _KERNEL
64 struct sysentvec;
65 struct thread;
66
67 int exec_check_permissions(struct image_params *);
68 register_t *exec_copyout_strings(struct image_params *);
69 int exec_extract_strings(struct image_params *);
70 int exec_new_vmspace(struct image_params *, struct sysentvec *);
71 void exec_setregs(struct thread *, u_long, u_long, u_long);
72 int exec_shell_imgact(struct image_params *);
73 #endif
74
75 #endif /* !_SYS_IMGACT_H_ */
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