2005-01-06 23:22:04 +00:00
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/*-
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2017-11-27 15:08:52 +00:00
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* SPDX-License-Identifier: BSD-3-Clause
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*
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1995-10-10 07:27:24 +00:00
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* Copyright (c) 1994 Christos Zoulas
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* Copyright (c) 1995 Frank van der Linden
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* Copyright (c) 1995 Scott Bartram
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* 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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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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* from: svr4_util.c,v 1.5 1995/01/22 23:44:50 christos Exp
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*/
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2003-06-02 06:48:51 +00:00
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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2008-03-31 12:01:21 +00:00
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#include <sys/fcntl.h>
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1995-10-10 07:27:24 +00:00
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#include <sys/param.h>
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#include <sys/systm.h>
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- Implement ibcs2_emul_find() using kern_alternate_path(). This changes
the semantics in that the returned filename to use is now a kernel
pointer rather than a user space pointer. This required changing the
arguments to the CHECKALT*() macros some and changing the various system
calls that used pathnames to use the kern_foo() functions that can accept
kernel space filename pointers instead of calling the system call
directly.
- Use kern_open(), kern_access(), kern_execve(), kern_mkfifo(), kern_mknod(),
kern_setitimer(), kern_getrusage(), kern_utimes(), kern_unlink(),
kern_chdir(), kern_chmod(), kern_chown(), kern_symlink(), kern_readlink(),
kern_select(), kern_statfs(), kern_fstatfs(), kern_stat(), kern_lstat(),
kern_fstat().
- Drop the unused 'uap' argument from spx_open().
- Replace a stale duplication of vn_access() in xenix_access() lacking
recent additions such as MAC checks, etc. with a call to kern_access().
2005-02-07 22:02:18 +00:00
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#include <sys/syscallsubr.h>
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1995-10-10 07:27:24 +00:00
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Remove old files no longer needed.
Add new files created for emulator.
Modify NetBSD import to work with FreeBSD and add new features and
code. The complete emulator is essentially a combination of work/code
implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself,
Steven Wallace.
Features of this new emulator system include:
o "clean" code, including strict prototyping.
o Auto-generation of ibcs2 system calls, xenix system calls, isc system
calls. Generation includes system tables, structure definitions,
and prototyping of function calls.
o ibcs2 emulator does not rely on any COMPAT_43 system calls.
o embedded socksys support
o ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel
o alternate /emul/ibcs2 namespace searched first for files in ibcs2
system. Usefull to keep sysv libraries, binaries in /emul/ibcs2.
o many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00
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#include <i386/ibcs2/ibcs2_util.h>
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1995-10-10 07:27:24 +00:00
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1999-12-15 23:02:35 +00:00
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1995-10-10 17:33:19 +00:00
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const char ibcs2_emul_path[] = "/compat/ibcs2";
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1995-10-10 07:27:24 +00:00
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/*
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* Search an alternate path before passing pathname arguments on
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2001-02-06 11:21:58 +00:00
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* to system calls. Useful for keeping a separate 'emulation tree'.
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1995-10-10 07:27:24 +00:00
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*
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* If cflag is set, we check if an attempt can be made to create
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* the named file, i.e. we check if the directory it should
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* be in exists.
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*/
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int
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- Implement ibcs2_emul_find() using kern_alternate_path(). This changes
the semantics in that the returned filename to use is now a kernel
pointer rather than a user space pointer. This required changing the
arguments to the CHECKALT*() macros some and changing the various system
calls that used pathnames to use the kern_foo() functions that can accept
kernel space filename pointers instead of calling the system call
directly.
- Use kern_open(), kern_access(), kern_execve(), kern_mkfifo(), kern_mknod(),
kern_setitimer(), kern_getrusage(), kern_utimes(), kern_unlink(),
kern_chdir(), kern_chmod(), kern_chown(), kern_symlink(), kern_readlink(),
kern_select(), kern_statfs(), kern_fstatfs(), kern_stat(), kern_lstat(),
kern_fstat().
- Drop the unused 'uap' argument from spx_open().
- Replace a stale duplication of vn_access() in xenix_access() lacking
recent additions such as MAC checks, etc. with a call to kern_access().
2005-02-07 22:02:18 +00:00
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ibcs2_emul_find(struct thread *td, char *path, enum uio_seg pathseg,
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char **pbuf, int cflag)
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1995-10-10 07:27:24 +00:00
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{
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- Implement ibcs2_emul_find() using kern_alternate_path(). This changes
the semantics in that the returned filename to use is now a kernel
pointer rather than a user space pointer. This required changing the
arguments to the CHECKALT*() macros some and changing the various system
calls that used pathnames to use the kern_foo() functions that can accept
kernel space filename pointers instead of calling the system call
directly.
- Use kern_open(), kern_access(), kern_execve(), kern_mkfifo(), kern_mknod(),
kern_setitimer(), kern_getrusage(), kern_utimes(), kern_unlink(),
kern_chdir(), kern_chmod(), kern_chown(), kern_symlink(), kern_readlink(),
kern_select(), kern_statfs(), kern_fstatfs(), kern_stat(), kern_lstat(),
kern_fstat().
- Drop the unused 'uap' argument from spx_open().
- Replace a stale duplication of vn_access() in xenix_access() lacking
recent additions such as MAC checks, etc. with a call to kern_access().
2005-02-07 22:02:18 +00:00
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return (kern_alternate_path(td, ibcs2_emul_path, path, pathseg, pbuf,
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Implement the linux syscalls
openat, mkdirat, mknodat, fchownat, futimesat, fstatat, unlinkat,
renameat, linkat, symlinkat, readlinkat, fchmodat, faccessat.
Submitted by: rdivacky
Sponsored by: Google Summer of Code 2007
Tested by: pho
2008-04-08 09:45:49 +00:00
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cflag, AT_FDCWD));
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1995-10-10 07:27:24 +00:00
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}
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