2 * Copyright (c) 1993, David Greenman
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
32 #ifndef _SYS_IMGACT_H_
33 #define _SYS_IMGACT_H_
39 #define MAXSHELLCMDLEN PAGE_SIZE
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; /* pointer to filename of executable (system space) */
47 char *fname_buf; /* pointer to optional malloc(M_TEMP) buffer */
48 int stringspace; /* space left in arg & env buffer */
49 int argc; /* count of argument strings */
50 int envc; /* count of environment strings */
51 int fd; /* file descriptor of the executable */
55 struct proc *proc; /* our process struct */
56 struct label *execlabel; /* optional exec label */
57 struct vnode *vp; /* pointer to vnode of file to exec */
58 struct vm_object *object; /* The vm object for this vp */
59 struct vattr *attr; /* attributes of file */
60 const char *image_header; /* head of file to exec */
61 unsigned long entry_addr; /* entry address of target executable */
62 unsigned long reloc_base; /* load address of image */
63 char vmspace_destroyed; /* flag - we've blown away original vm space */
64 char interpreted; /* flag - this executable is interpreted */
65 char opened; /* flag - we have opened executable vnode */
66 char *interpreter_name; /* name of the interpreter */
67 void *auxargs; /* ELF Auxinfo structure pointer */
68 struct sf_buf *firstpage; /* first page that we mapped */
69 unsigned long ps_strings; /* PS_STRINGS for BSD/OS binaries */
71 struct image_args *args; /* system call arguments */
72 struct sysentvec *sysent; /* system entry vector */
74 unsigned long execpathp;
78 unsigned long pagesizes;
87 #define IMGACT_CORE_COMPRESS 0x01
89 int exec_alloc_args(struct image_args *);
90 int exec_check_permissions(struct image_params *);
91 register_t *exec_copyout_strings(struct image_params *);
92 void exec_free_args(struct image_args *);
93 int exec_new_vmspace(struct image_params *, struct sysentvec *);
94 void exec_setregs(struct thread *, struct image_params *, u_long);
95 int exec_shell_imgact(struct image_params *);
96 int exec_copyin_args(struct image_args *, char *, enum uio_seg,
100 #endif /* !_SYS_IMGACT_H_ */