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1311e997d4
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
246 lines
No EOL
9.9 KiB
C
Vendored
246 lines
No EOL
9.9 KiB
C
Vendored
/* $OpenBSD: exec.h,v 1.57 2025/05/24 06:49:16 deraadt Exp $ */
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/* $NetBSD: exec.h,v 1.59 1996/02/09 18:25:09 christos Exp $ */
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/*-
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* Copyright (c) 1994 Christopher G. Demetriou
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* Copyright (c) 1993 Theo de Raadt
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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 8.3 (Berkeley) 1/21/94
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*/
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#ifndef _SYS_EXEC_H_
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#define _SYS_EXEC_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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/*
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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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struct proc;
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struct exec_package;
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typedef int (*exec_makecmds_fcn)(struct proc *, 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_check; /* function to check exec format */
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};
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struct exec_vmcmd {
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int (*ev_proc)(struct proc *p, struct exec_vmcmd *cmd);
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/* procedure to run for region of vmspace */
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u_long ev_len; /* length of the segment to map */
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u_long 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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u_long 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_STACK 0x0004 /* create with UVM_FLAG_STACK */
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#define VMCMD_IMMUTABLE 0x0010 /* create with UVM_ET_IMMUTABLE */
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#define VMCMD_TEXTREL 0x0020 /* terrible binary contains terrible textrel */
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};
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#define EXEC_DEFAULT_VMCMD_SETSIZE 12 /* # of cmds in set to start */
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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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struct exec_vmcmd evs_start[EXEC_DEFAULT_VMCMD_SETSIZE];
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};
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struct elf_args;
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struct exec_package {
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char *ep_name; /* file's name */
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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 nameidata *ep_ndp; /* namei data pointer for lookups */
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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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u_long ep_taddr; /* process's text address */
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u_long ep_tsize; /* size of process's text */
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u_long ep_daddr; /* process's data(+bss) address */
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u_long ep_dsize; /* size of process's data(+bss) */
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u_long ep_maxsaddr; /* proc's max stack addr ("top") */
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u_long ep_minsaddr; /* proc's min stack addr ("bottom") */
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u_long ep_ssize; /* size of process's stack */
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u_long ep_entry; /* process's entry point */
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u_int ep_flags; /* flags; see below. */
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char **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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struct elf_args *ep_args; /* ELF info */
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void *ep_auxinfo; /* userspace auxinfo address */
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char *ep_interp; /* name of interpreter if any */
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vaddr_t ep_pinstart, ep_pinend; /* executable region */
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u_int *ep_pins; /* array of system call offsets */
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int ep_npins; /* entries in array */
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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_WXNEEDED 0x0020 /* executable will violate W^X */
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#define EXEC_NOBTCFI 0x0040 /* no branch target CFI */
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#define EXEC_PROFILE 0x0080 /* profiled binary */
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#ifdef _KERNEL
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/*
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* functions used either by execve() or the various cpu-dependent execve()
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* hooks.
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*/
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void vmcmdset_extend(struct exec_vmcmd_set *);
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void kill_vmcmds(struct exec_vmcmd_set *evsp);
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int vmcmd_map_pagedvn(struct proc *, struct exec_vmcmd *);
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int vmcmd_map_readvn(struct proc *, struct exec_vmcmd *);
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int vmcmd_map_zero(struct proc *, struct exec_vmcmd *);
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int vmcmd_mutable(struct proc *, struct exec_vmcmd *);
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int vmcmd_randomize(struct proc *, struct exec_vmcmd *);
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int copyargs(struct exec_package *, struct ps_strings *, void *, void *);
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void setregs(struct proc *, struct exec_package *, u_long,
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struct ps_strings *);
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int check_exec(struct proc *, struct exec_package *);
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int exec_setup_stack(struct proc *, struct exec_package *);
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int exec_process_vmcmds(struct proc *, struct exec_package *);
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void new_vmcmd(struct exec_vmcmd_set *evsp,
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int (*proc)(struct proc *p, struct exec_vmcmd *),
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u_long len, u_long addr, struct vnode *vp, u_long offset,
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u_int prot, int flags);
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#define NEW_VMCMD(evsp,proc,len,addr,vp,offset,prot) \
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new_vmcmd(evsp,proc,len,addr,vp,offset,prot, 0);
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#define NEW_VMCMD2(evsp,proc,len,addr,vp,offset,prot,flags) \
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new_vmcmd(evsp,proc,len,addr,vp,offset,prot,flags)
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/* Initialize an empty vmcmd set */
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#define VMCMDSET_INIT(vmc) do { \
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(vmc)->evs_cnt = EXEC_DEFAULT_VMCMD_SETSIZE; \
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(vmc)->evs_cmds = (vmc)->evs_start; \
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(vmc)->evs_used = 0; \
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} while (0)
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/*
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* Exec function switch:
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*
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* Note that each makecmds function is responsible for loading the
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* exec package with the necessary functions for any exec-type-specific
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* handling.
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*
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* Functions for specific exec types should be defined in their own
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* header file.
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*/
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extern const struct execsw execsw[];
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extern int nexecs;
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extern int exec_maxhdrsz;
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/*
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* If non-zero, stackgap_random specifies the upper limit of the random gap size
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* added to the fixed stack position. Must be n^2.
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*/
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extern int stackgap_random;
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/* Limit on total PT_OPENBSD_RANDOMIZE bytes. */
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#define ELF_RANDOMIZE_LIMIT 1024*1024
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#endif /* _KERNEL */
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/*
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* a_mid - keep sorted in numerical order for sanity's sake
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* ensure that: 0 < mid < 0x3ff
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*/
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#define MID_ZERO 0 /* unknown - implementation dependent */
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#define MID_SUN010 1 /* sun 68010/68020 binary */
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#define MID_SUN020 2 /* sun 68020-only binary */
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#define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */
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#define MID_ROMPAOS 104 /* old IBM RT */
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#define MID_I386 134 /* i386 BSD binary */
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#define MID_M68K 135 /* m68k BSD binary with 8K page sizes */
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#define MID_M68K4K 136 /* DO NOT USE: m68k BSD binary with 4K page sizes */
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#define MID_NS32532 137 /* ns32532 */
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#define MID_SPARC 138 /* sparc */
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#define MID_PMAX 139 /* pmax */
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#define MID_VAX1K 140 /* vax 1k page size */
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#define MID_ALPHA 141 /* Alpha BSD binary */
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#define MID_MIPS 142 /* big-endian MIPS */
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#define MID_ARM6 143 /* ARM6 */
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#define MID_SH3 145 /* SH3 */
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#define MID_POWERPC 149 /* big-endian PowerPC */
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#define MID_VAX 150 /* vax */
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#define MID_SPARC64 151 /* LP64 sparc */
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#define MID_MIPS2 152 /* MIPS2 */
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#define MID_M88K 153 /* m88k BSD binary */
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#define MID_HPPA 154 /* hppa */
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#define MID_AMD64 157 /* AMD64 */
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#define MID_MIPS64 158 /* big-endian MIPS64 */
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#define MID_ARM64 159 /* ARM64 */
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#define MID_POWERPC64 160 /* big-endian 64-bit PowerPC */
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#define MID_RISCV64 161 /* Little-endian 64-bit RISC-V */
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#define MID_HP200 200 /* hp200 (68010) BSD binary */
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#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
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#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
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#define MID_HPUX800 0x20B /* hp800 HP-UX binary pa1.0 */
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#define MID_HPPA11 0x210 /* hp700 HP-UX binary pa1.1 */
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#define MID_HPPA20 0x214 /* hp700 HP-UX binary pa2.0 */
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#include <machine/exec.h>
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#endif /* !_SYS_EXEC_H_ */ |