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freebsd-dev/sys/compat/svr4/svr4_ioctl.c

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Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
/*
* Copyright (c) 1998 Mark Newton
* Copyright (c) 1994 Christos Zoulas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Add $Id$ tags
1999-07-30 12:45:21 +00:00
*
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
* $FreeBSD$
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
*/
#include <sys/param.h>
Lock down a socket, milestone 1. o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a socket buffer. The mutex in the receive buffer also protects the data in struct socket. o Determine the lock strategy for each members in struct socket. o Lock down the following members: - so_count - so_options - so_linger - so_state o Remove *_locked() socket APIs. Make the following socket APIs touching the members above now require a locked socket: - sodisconnect() - soisconnected() - soisconnecting() - soisdisconnected() - soisdisconnecting() - sofree() - soref() - sorele() - sorwakeup() - sotryfree() - sowakeup() - sowwakeup() Reviewed by: alfred
2002-05-20 05:41:09 +00:00
#include <sys/fcntl.h>
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
#include <sys/file.h>
#include <sys/filedesc.h>
Lock down a socket, milestone 1. o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a socket buffer. The mutex in the receive buffer also protects the data in struct socket. o Determine the lock strategy for each members in struct socket. o Lock down the following members: - so_count - so_options - so_linger - so_state o Remove *_locked() socket APIs. Make the following socket APIs touching the members above now require a locked socket: - sodisconnect() - soisconnected() - soisconnecting() - soisdisconnected() - soisdisconnecting() - sofree() - soref() - sorele() - sorwakeup() - sotryfree() - sowakeup() - sowwakeup() Reviewed by: alfred
2002-05-20 05:41:09 +00:00
#include <sys/lock.h>
#include <sys/proc.h>
#include <sys/mutex.h>
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
#include <sys/socket.h>
SVR4 emulator source files now take their compilation options from opt_global.h and opt_svr4.h, instead of from the command line. This brings them in-line with most of the rest of the kernel. svr4_ioctl.c has also failed to compile with debugging for a while now; fixed by adding systm.h and socketvar. Some svr4 source files are automatically generated from syscalls.master; these have been committed as consequential changes, otherwise everyone will have to "make svr4_sysent.c". Changes: sys/svr4/svr4.h include opt_global.h and opt_svr4.h sys/svr4/svr4_ioctl.c include svr4.h, sys/systm.h and sys/socketvar.h sys/svr4/svr4_ipc.c include svr4.h sys/svr4/svr4_resource.c include svr4.h sys/svr4/svr4_socket.c include svr4.h sys/svr4/svr4_ttold.c include svr4.h sys/svr4/syscalls.master include svr4.h sys/svr4/svr4_syscallnames.c dependent on syscalls.master sys/svr4/svr4_sysent.c dependent on syscalls.master sys/svr4/svr4_syscall.h dependent on syscalls.master sys/svr4/svr4_proto.h dependent on syscalls.master sys/modules/svr4/Makefile create opt_global.h and opt_svr4.h
1999-12-08 10:51:17 +00:00
#include <sys/socketvar.h>
#include <sys/systm.h>
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
Cleanup after repo copy of sys/svr4 to sys/compat/svr4.
2000-08-31 22:54:09 +00:00
#include <compat/svr4/svr4.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_signal.h>
#include <compat/svr4/svr4_proto.h>
#include <compat/svr4/svr4_stropts.h>
#include <compat/svr4/svr4_ioctl.h>
#include <compat/svr4/svr4_termios.h>
#include <compat/svr4/svr4_ttold.h>
#include <compat/svr4/svr4_filio.h>
#include <compat/svr4/svr4_sockio.h>
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
#ifdef DEBUG_SVR4
Remove __P.
2002-03-20 05:48:58 +00:00
static void svr4_decode_cmd(u_long, char *, char *, int *, int *);
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
/*
* Decode an ioctl command symbolically
*/
static void
svr4_decode_cmd(cmd, dir, c, num, argsiz)
u_long cmd;
char *dir, *c;
int *num, *argsiz;
{
if (cmd & SVR4_IOC_VOID)
*dir++ = 'V';
if (cmd & SVR4_IOC_IN)
*dir++ = 'R';
if (cmd & SVR4_IOC_OUT)
*dir++ = 'W';
*dir = '\0';
if (cmd & SVR4_IOC_INOUT)
*argsiz = (cmd >> 16) & 0xff;
else
*argsiz = -1;
*c = (cmd >> 8) & 0xff;
*num = cmd & 0xff;
}
#endif
int
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
svr4_sys_ioctl(td, uap)
register struct thread *td;
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
struct svr4_sys_ioctl_args *uap;
{
int *retval;
struct file *fp;
u_long cmd;
Remove __P.
2002-03-20 05:48:58 +00:00
int (*fun)(struct file *, struct thread *, register_t *,
int, u_long, caddr_t);
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
int error;
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
#ifdef DEBUG_SVR4
char dir[4];
char c;
int num;
int argsiz;
Lock down a socket, milestone 1. o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a socket buffer. The mutex in the receive buffer also protects the data in struct socket. o Determine the lock strategy for each members in struct socket. o Lock down the following members: - so_count - so_options - so_linger - so_state o Remove *_locked() socket APIs. Make the following socket APIs touching the members above now require a locked socket: - sodisconnect() - soisconnected() - soisconnecting() - soisdisconnected() - soisdisconnecting() - sofree() - soref() - sorele() - sorwakeup() - sotryfree() - sowakeup() - sowwakeup() Reviewed by: alfred
2002-05-20 05:41:09 +00:00
int sostate;
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
get rid of some printf and pointer type warnings
2001-07-22 00:12:22 +00:00
DPRINTF(("svr4_ioctl[%lx](%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, com), SCARG(uap, fd),
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
dir, c, num, argsiz, SCARG(uap, data)));
#endif
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
retval = td->td_retval;
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
cmd = SCARG(uap, com);
Replace ffind_* with fget calls. Make fget MPsafe. Make fgetvp and fgetsock use the fget subsystem to reduce code bloat. Push giant down in fpathconf().
2002-01-14 00:13:45 +00:00
if ((error = fget(td, uap->fd, &fp)) != 0)
return (error);
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
fdrop(fp, td);
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
return EBADF;
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
}
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
#if defined(DEBUG_SVR4)
if (fp->f_type == DTYPE_SOCKET) {
get rid of some printf and pointer type warnings
2001-07-22 00:12:22 +00:00
struct socket *so = (struct socket *)fp->f_data;
Lock down a socket, milestone 1. o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a socket buffer. The mutex in the receive buffer also protects the data in struct socket. o Determine the lock strategy for each members in struct socket. o Lock down the following members: - so_count - so_options - so_linger - so_state o Remove *_locked() socket APIs. Make the following socket APIs touching the members above now require a locked socket: - sodisconnect() - soisconnected() - soisconnecting() - soisdisconnected() - soisdisconnecting() - sofree() - soref() - sorele() - sorwakeup() - sotryfree() - sowakeup() - sowwakeup() Reviewed by: alfred
2002-05-20 05:41:09 +00:00
SOCK_LOCK(so);
sostate = so->so_state;
SOCK_UNLOCK(so);
DPRINTF(("<<< IN: so_state = 0x%x\n", sostate));
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
}
#endif
switch (cmd & 0xff00) {
case SVR4_tIOC:
DPRINTF(("ttold\n"));
fun = svr4_ttold_ioctl;
break;
case SVR4_TIOC:
DPRINTF(("term\n"));
fun = svr4_term_ioctl;
break;
case SVR4_STR:
DPRINTF(("stream\n"));
fun = svr4_stream_ioctl;
break;
case SVR4_FIOC:
DPRINTF(("file\n"));
fun = svr4_fil_ioctl;
break;
case SVR4_SIOC:
DPRINTF(("socket\n"));
fun = svr4_sock_ioctl;
break;
case SVR4_XIOC:
/* We do not support those */
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
fdrop(fp, td);
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
return EINVAL;
default:
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
fdrop(fp, td);
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
DPRINTF(("Unimplemented ioctl %lx\n", cmd));
return 0; /* XXX: really ENOSYS */
}
#if defined(DEBUG_SVR4)
if (fp->f_type == DTYPE_SOCKET) {
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
struct socket *so;
so = (struct socket *)fp->f_data;
Lock down a socket, milestone 1. o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a socket buffer. The mutex in the receive buffer also protects the data in struct socket. o Determine the lock strategy for each members in struct socket. o Lock down the following members: - so_count - so_options - so_linger - so_state o Remove *_locked() socket APIs. Make the following socket APIs touching the members above now require a locked socket: - sodisconnect() - soisconnected() - soisconnecting() - soisdisconnected() - soisdisconnecting() - sofree() - soref() - sorele() - sorwakeup() - sotryfree() - sowakeup() - sowwakeup() Reviewed by: alfred
2002-05-20 05:41:09 +00:00
SOCK_LOCK(so);
sostate = so->so_state;
SOCK_UNLOCK(so);
DPRINTF((">>> OUT: so_state = 0x%x\n", sostate));
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
}
#endif
SMP Lock struct file, filedesc and the global file list. Seigo Tanimura (tanimura) posted the initial delta. I've polished it quite a bit reducing the need for locking and adapting it for KSE. Locks: 1 mutex in each filedesc protects all the fields. protects "struct file" initialization, while a struct file is being changed from &badfileops -> &pipeops or something the filedesc should be locked. 1 mutex in each struct file protects the refcount fields. doesn't protect anything else. the flags used for garbage collection have been moved to f_gcflag which was the FILLER short, this doesn't need locking because the garbage collection is a single threaded container. could likely be made to use a pool mutex. 1 sx lock for the global filelist. struct file * fhold(struct file *fp); /* increments reference count on a file */ struct file * fhold_locked(struct file *fp); /* like fhold but expects file to locked */ struct file * ffind_hold(struct thread *, int fd); /* finds the struct file in thread, adds one reference and returns it unlocked */ struct file * ffind_lock(struct thread *, int fd); /* ffind_hold, but returns file locked */ I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
error = (*fun)(fp, td, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
fdrop(fp, td);
return (error);
Emulator KLD for SysVR4 executables grabbed from NetBSD. See http://www.freebsd.org/~newton/freebsd-svr4 for limitations, capabilities, history and TO-DO list.
1999-01-30 06:29:48 +00:00
}
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