f6aac1c3b5
Moving include/sys NetBSD headers to /sys/sys Moving include/arch/*/ NetBSD headers to /sys/arch/*/include Change-Id: Ia1a45d4e83ab806c84093ec2b61bdbea9bed65a0
313 lines
13 KiB
C
313 lines
13 KiB
C
/* $NetBSD: exec.h,v 1.139 2012/08/05 01:43:59 matt Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)exec.h 8.4 (Berkeley) 2/19/95
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*/
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/*-
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* Copyright (c) 1993 Theo de Raadt. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1994 Christopher G. Demetriou
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)exec.h 8.4 (Berkeley) 2/19/95
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*/
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#ifndef _SYS_EXEC_H_
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#define _SYS_EXEC_H_
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struct pathbuf; /* from namei.h */
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/*
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* The following structure is found at the top of the user stack of each
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* user process. The ps program uses it to locate argv and environment
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* strings. Programs that wish ps to display other information may modify
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* it; normally ps_argvstr points to argv[0], and ps_nargvstr is the same
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* as the program's argc. The fields ps_envstr and ps_nenvstr are the
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* equivalent for the environment.
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*/
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struct ps_strings {
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char **ps_argvstr; /* first of 0 or more argument strings */
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int ps_nargvstr; /* the number of argument strings */
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char **ps_envstr; /* first of 0 or more environment strings */
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int ps_nenvstr; /* the number of environment strings */
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};
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#ifdef _KERNEL
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struct ps_strings32 {
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uint32_t ps_argvstr; /* first of 0 or more argument strings */
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int32_t ps_nargvstr; /* the number of argument strings */
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uint32_t ps_envstr; /* first of 0 or more environment strings */
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int32_t ps_nenvstr; /* the number of environment strings */
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};
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#endif
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/*
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* the following structures allow execve() to put together processes
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* in a more extensible and cleaner way.
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*
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* the exec_package struct defines an executable being execve()'d.
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* it contains the header, the vmspace-building commands, the vnode
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* information, and the arguments associated with the newly-execve'd
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* process.
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*
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* the exec_vmcmd struct defines a command description to be used
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* in creating the new process's vmspace.
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*/
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#include <sys/uio.h>
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struct lwp;
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struct proc;
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struct exec_package;
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struct vnode;
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typedef int (*exec_makecmds_fcn)(struct lwp *, struct exec_package *);
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struct execsw {
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u_int es_hdrsz; /* size of header for this format */
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exec_makecmds_fcn es_makecmds; /* function to setup vmcmds */
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union { /* probe function */
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int (*elf_probe_func)(struct lwp *,
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struct exec_package *, void *, char *, vaddr_t *);
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int (*ecoff_probe_func)(struct lwp *, struct exec_package *);
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int (*mach_probe_func)(const char **);
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} u;
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struct emul *es_emul; /* os emulation */
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int es_prio; /* entry priority */
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int es_arglen; /* Extra argument size in words */
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/* Copy arguments on the new stack */
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int (*es_copyargs)(struct lwp *, struct exec_package *,
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struct ps_strings *, char **, void *);
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/* Set registers before execution */
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void (*es_setregs)(struct lwp *, struct exec_package *, vaddr_t);
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/* Dump core */
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int (*es_coredump)(struct lwp *, void *);
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int (*es_setup_stack)(struct lwp *, struct exec_package *);
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};
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#define EXECSW_PRIO_ANY 0x000 /* default, no preference */
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#define EXECSW_PRIO_FIRST 0x001 /* this should be among first */
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#define EXECSW_PRIO_LAST 0x002 /* this should be among last */
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/* exec vmspace-creation command set; see below */
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struct exec_vmcmd_set {
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u_int evs_cnt;
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u_int evs_used;
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struct exec_vmcmd *evs_cmds;
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};
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#define EXEC_DEFAULT_VMCMD_SETSIZE 9 /* # of cmds in set to start */
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struct exec_package {
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const char *ep_name; /* file's name */
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const char *ep_kname; /* kernel-side copy of file's name */
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char *ep_resolvedname; /* fully resolved path from namei */
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void *ep_hdr; /* file's exec header */
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u_int ep_hdrlen; /* length of ep_hdr */
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u_int ep_hdrvalid; /* bytes of ep_hdr that are valid */
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struct exec_vmcmd_set ep_vmcmds; /* vmcmds used to build vmspace */
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struct vnode *ep_vp; /* executable's vnode */
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struct vattr *ep_vap; /* executable's attributes */
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vaddr_t ep_taddr; /* process's text address */
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vsize_t ep_tsize; /* size of process's text */
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vaddr_t ep_daddr; /* process's data(+bss) address */
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vsize_t ep_dsize; /* size of process's data(+bss) */
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vaddr_t ep_maxsaddr; /* proc's max stack addr ("top") */
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vaddr_t ep_minsaddr; /* proc's min stack addr ("bottom") */
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vsize_t ep_ssize; /* size of process's stack */
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vaddr_t ep_entry; /* process's entry point */
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vaddr_t ep_vm_minaddr; /* bottom of process address space */
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vaddr_t ep_vm_maxaddr; /* top of process address space */
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u_int ep_flags; /* flags; see below. */
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size_t ep_fa_len; /* byte size of ep_fa */
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struct exec_fakearg {
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char *fa_arg;
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size_t fa_len;
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} *ep_fa; /* a fake args vector for scripts */
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int ep_fd; /* a file descriptor we're holding */
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void *ep_emul_arg; /* emulation argument */
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const struct execsw *ep_esch;/* execsw entry */
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struct vnode *ep_emul_root; /* base of emulation filesystem */
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struct vnode *ep_interp; /* vnode of (elf) interpeter */
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uint32_t ep_pax_flags; /* pax flags */
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char *ep_path; /* absolute path of executable */
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void (*ep_emul_arg_free)(void *);
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/* free ep_emul_arg */
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};
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#define EXEC_INDIR 0x0001 /* script handling already done */
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#define EXEC_HASFD 0x0002 /* holding a shell script */
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#define EXEC_HASARGL 0x0004 /* has fake args vector */
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#define EXEC_SKIPARG 0x0008 /* don't copy user-supplied argv[0] */
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#define EXEC_DESTR 0x0010 /* destructive ops performed */
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#define EXEC_32 0x0020 /* 32-bit binary emulation */
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#define EXEC_FORCEAUX 0x0040 /* always use ELF AUX vector */
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struct exec_vmcmd {
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int (*ev_proc)(struct lwp *, struct exec_vmcmd *);
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/* procedure to run for region of vmspace */
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vsize_t ev_len; /* length of the segment to map */
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vaddr_t ev_addr; /* address in the vmspace to place it at */
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struct vnode *ev_vp; /* vnode pointer for the file w/the data */
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vsize_t ev_offset; /* offset in the file for the data */
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u_int ev_prot; /* protections for segment */
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int ev_flags;
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#define VMCMD_RELATIVE 0x0001 /* ev_addr is relative to base entry */
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#define VMCMD_BASE 0x0002 /* marks a base entry */
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#define VMCMD_FIXED 0x0004 /* entry must be mapped at ev_addr */
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#define VMCMD_STACK 0x0008 /* entry is for a stack */
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};
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#ifdef _KERNEL
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/*
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* funtions used either by execve() or the various CPU-dependent execve()
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* hooks.
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*/
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void kill_vmcmd (struct exec_vmcmd **);
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int exec_makecmds (struct lwp *, struct exec_package *);
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int exec_runcmds (struct lwp *, struct exec_package *);
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void vmcmdset_extend (struct exec_vmcmd_set *);
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void kill_vmcmds (struct exec_vmcmd_set *);
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int vmcmd_map_pagedvn (struct lwp *, struct exec_vmcmd *);
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int vmcmd_map_readvn (struct lwp *, struct exec_vmcmd *);
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int vmcmd_readvn (struct lwp *, struct exec_vmcmd *);
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int vmcmd_map_zero (struct lwp *, struct exec_vmcmd *);
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int copyargs (struct lwp *, struct exec_package *,
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struct ps_strings *, char **, void *);
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int copyin_psstrings (struct proc *, struct ps_strings *);
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int copy_procargs (struct proc *, int, size_t *,
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int (*)(void *, const void *, size_t, size_t), void *);
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void setregs (struct lwp *, struct exec_package *, vaddr_t);
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int check_veriexec (struct lwp *, struct vnode *,
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struct exec_package *, int);
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int check_exec (struct lwp *, struct exec_package *,
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struct pathbuf *);
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int exec_init (int);
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int exec_read_from (struct lwp *, struct vnode *, u_long off,
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void *, size_t);
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int exec_setup_stack (struct lwp *, struct exec_package *);
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int coredump_write (void *, enum uio_seg, const void *, size_t);
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void exec_free_emul_arg (struct exec_package *);
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/*
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* Machine dependent functions
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*/
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struct core;
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struct core32;
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int cpu_coredump(struct lwp *, void *, struct core *);
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int cpu_coredump32(struct lwp *, void *, struct core32 *);
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int exec_add(struct execsw *, int);
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int exec_remove(struct execsw *, int);
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void new_vmcmd(struct exec_vmcmd_set *,
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int (*)(struct lwp *, struct exec_vmcmd *),
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vsize_t, vaddr_t, struct vnode *, u_long, u_int, int);
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#define NEW_VMCMD(evsp,lwp,len,addr,vp,offset,prot) \
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new_vmcmd(evsp,lwp,len,addr,vp,offset,prot,0)
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#define NEW_VMCMD2(evsp,lwp,len,addr,vp,offset,prot,flags) \
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new_vmcmd(evsp,lwp,len,addr,vp,offset,prot,flags)
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typedef int (*execve_fetch_element_t)(char * const *, size_t, char **);
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int execve1(struct lwp *, const char *, char * const *, char * const *,
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execve_fetch_element_t);
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struct posix_spawn_file_actions;
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struct posix_spawnattr;
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int check_posix_spawn (struct lwp *);
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void posix_spawn_fa_free(struct posix_spawn_file_actions *, size_t);
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int do_posix_spawn(struct lwp *, pid_t *, bool*, const char *,
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struct posix_spawn_file_actions *, struct posix_spawnattr *,
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char *const *argv, char *const *, execve_fetch_element_t);
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extern int maxexec;
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#endif /* _KERNEL */
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#endif /* !_SYS_EXEC_H_ */
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