d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
9773a1f20f
freebsd-nq/sys/i386/ibcs2/ibcs2_fcntl.c

318 lines
8.2 KiB
C
Raw Normal View History

/* -> /*- for license, add FreeBSD tag
2005-01-06 23:22:04 +00:00
/*-
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
* Copyright (c) 1995 Scott Bartram
* 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.
*/
Use __FBSDID().
2003-06-02 06:48:51 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
Make SPX_HACK a new-style option.
1998-02-04 04:12:29 +00:00
#include "opt_spx_hack.h"
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
#include <sys/param.h>
#include <sys/systm.h>
Second-to-last commit implementing Capsicum capabilities in the FreeBSD kernel for FreeBSD 9.0: Add a new capability mask argument to fget(9) and friends, allowing system call code to declare what capabilities are required when an integer file descriptor is converted into an in-kernel struct file *. With options CAPABILITIES compiled into the kernel, this enforces capability protection; without, this change is effectively a no-op. Some cases require special handling, such as mmap(2), which must preserve information about the maximum rights at the time of mapping in the memory map so that they can later be enforced in mprotect(2) -- this is done by narrowing the rights in the existing max_protection field used for similar purposes with file permissions. In namei(9), we assert that the code is not reached from within capability mode, as we're not yet ready to enforce namespace capabilities there. This will follow in a later commit. Update two capability names: CAP_EVENT and CAP_KEVENT become CAP_POST_KEVENT and CAP_POLL_KEVENT to more accurately indicate what they represent. Approved by: re (bz) Submitted by: jonathan Sponsored by: Google Inc
2011-08-11 12:30:23 +00:00
#include <sys/capability.h>
Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined. Fixed everything that depended on getting fcntl.h stuff from the wrong place. Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +00:00
#include <sys/fcntl.h>
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
#include <sys/file.h>
#include <sys/filedesc.h>
Undo part of the tangle of having sys/lock.h and sys/mutex.h included in other "system" header files. Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files. Sort sys/*.h includes where possible in affected files. OK'ed by: bde (with reservations)
2001-05-01 08:13:21 +00:00
#include <sys/lock.h>
- 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
#include <sys/malloc.h>
Undo part of the tangle of having sys/lock.h and sys/mutex.h included in other "system" header files. Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files. Sort sys/*.h includes where possible in affected files. OK'ed by: bde (with reservations)
2001-05-01 08:13:21 +00:00
#include <sys/mutex.h>
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
#include <sys/syscallsubr.h>
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
#include <sys/sysproto.h>
Undo part of the tangle of having sys/lock.h and sys/mutex.h included in other "system" header files. Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files. Sort sys/*.h includes where possible in affected files. OK'ed by: bde (with reservations)
2001-05-01 08:13:21 +00:00
#include <sys/ttycom.h>
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
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
#include <i386/ibcs2/ibcs2_fcntl.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_util.h>
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
Remove __P.
2002-03-20 05:48:58 +00:00
static void cvt_iflock2flock(struct ibcs2_flock *, struct flock *);
static void cvt_flock2iflock(struct flock *, struct ibcs2_flock *);
static int cvt_o_flags(int);
static int oflags2ioflags(int);
static int ioflags2oflags(int);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
static int
cvt_o_flags(flags)
int flags;
{
int r = 0;
/* convert mode into NetBSD mode */
if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
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
if (flags & IBCS2_O_RDWR) r |= O_RDWR;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK;
if (flags & IBCS2_O_APPEND) r |= O_APPEND;
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
if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
if (flags & IBCS2_O_CREAT) r |= O_CREAT;
if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */;
if (flags & IBCS2_O_EXCL) r |= O_EXCL;
if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
if (flags & IBCS2_O_PRIV) r |= O_EXLOCK;
if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
return r;
}
static void
cvt_flock2iflock(flp, iflp)
struct flock *flp;
struct ibcs2_flock *iflp;
{
switch (flp->l_type) {
case F_RDLCK:
iflp->l_type = IBCS2_F_RDLCK;
break;
case F_WRLCK:
iflp->l_type = IBCS2_F_WRLCK;
break;
case F_UNLCK:
iflp->l_type = IBCS2_F_UNLCK;
break;
}
iflp->l_whence = (short)flp->l_whence;
iflp->l_start = (ibcs2_off_t)flp->l_start;
iflp->l_len = (ibcs2_off_t)flp->l_len;
Add the new kernel-mode NFS Lock Manager. To use it instead of the user-mode lock manager, build a kernel with the NFSLOCKD option and add '-k' to 'rpc_lockd_flags' in rc.conf. Highlights include: * Thread-safe kernel RPC client - many threads can use the same RPC client handle safely with replies being de-multiplexed at the socket upcall (typically driven directly by the NIC interrupt) and handed off to whichever thread matches the reply. For UDP sockets, many RPC clients can share the same socket. This allows the use of a single privileged UDP port number to talk to an arbitrary number of remote hosts. * Single-threaded kernel RPC server. Adding support for multi-threaded server would be relatively straightforward and would follow approximately the Solaris KPI. A single thread should be sufficient for the NLM since it should rarely block in normal operation. * Kernel mode NLM server supporting cancel requests and granted callbacks. I've tested the NLM server reasonably extensively - it passes both my own tests and the NFS Connectathon locking tests running on Solaris, Mac OS X and Ubuntu Linux. * Userland NLM client supported. While the NLM server doesn't have support for the local NFS client's locking needs, it does have to field async replies and granted callbacks from remote NLMs that the local client has contacted. We relay these replies to the userland rpc.lockd over a local domain RPC socket. * Robust deadlock detection for the local lock manager. In particular it will detect deadlocks caused by a lock request that covers more than one blocking request. As required by the NLM protocol, all deadlock detection happens synchronously - a user is guaranteed that if a lock request isn't rejected immediately, the lock will eventually be granted. The old system allowed for a 'deferred deadlock' condition where a blocked lock request could wake up and find that some other deadlock-causing lock owner had beaten them to the lock. * Since both local and remote locks are managed by the same kernel locking code, local and remote processes can safely use file locks for mutual exclusion. Local processes have no fairness advantage compared to remote processes when contending to lock a region that has just been unlocked - the local lock manager enforces a strict first-come first-served model for both local and remote lockers. Sponsored by: Isilon Systems PR: 95247 107555 115524 116679 MFC after: 2 weeks
2008-03-26 15:23:12 +00:00
iflp->l_sysid = flp->l_sysid;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
iflp->l_pid = (ibcs2_pid_t)flp->l_pid;
}
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
#ifdef DEBUG_IBCS2
static void
print_flock(struct flock *flp)
{
printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n",
(int)flp->l_start, (int)flp->l_len, (int)flp->l_pid,
flp->l_type, flp->l_whence);
}
#endif
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
static void
cvt_iflock2flock(iflp, flp)
struct ibcs2_flock *iflp;
struct flock *flp;
{
flp->l_start = (off_t)iflp->l_start;
flp->l_len = (off_t)iflp->l_len;
flp->l_pid = (pid_t)iflp->l_pid;
switch (iflp->l_type) {
case IBCS2_F_RDLCK:
flp->l_type = F_RDLCK;
break;
case IBCS2_F_WRLCK:
flp->l_type = F_WRLCK;
break;
case IBCS2_F_UNLCK:
flp->l_type = F_UNLCK;
break;
}
flp->l_whence = iflp->l_whence;
Add the new kernel-mode NFS Lock Manager. To use it instead of the user-mode lock manager, build a kernel with the NFSLOCKD option and add '-k' to 'rpc_lockd_flags' in rc.conf. Highlights include: * Thread-safe kernel RPC client - many threads can use the same RPC client handle safely with replies being de-multiplexed at the socket upcall (typically driven directly by the NIC interrupt) and handed off to whichever thread matches the reply. For UDP sockets, many RPC clients can share the same socket. This allows the use of a single privileged UDP port number to talk to an arbitrary number of remote hosts. * Single-threaded kernel RPC server. Adding support for multi-threaded server would be relatively straightforward and would follow approximately the Solaris KPI. A single thread should be sufficient for the NLM since it should rarely block in normal operation. * Kernel mode NLM server supporting cancel requests and granted callbacks. I've tested the NLM server reasonably extensively - it passes both my own tests and the NFS Connectathon locking tests running on Solaris, Mac OS X and Ubuntu Linux. * Userland NLM client supported. While the NLM server doesn't have support for the local NFS client's locking needs, it does have to field async replies and granted callbacks from remote NLMs that the local client has contacted. We relay these replies to the userland rpc.lockd over a local domain RPC socket. * Robust deadlock detection for the local lock manager. In particular it will detect deadlocks caused by a lock request that covers more than one blocking request. As required by the NLM protocol, all deadlock detection happens synchronously - a user is guaranteed that if a lock request isn't rejected immediately, the lock will eventually be granted. The old system allowed for a 'deferred deadlock' condition where a blocked lock request could wake up and find that some other deadlock-causing lock owner had beaten them to the lock. * Since both local and remote locks are managed by the same kernel locking code, local and remote processes can safely use file locks for mutual exclusion. Local processes have no fairness advantage compared to remote processes when contending to lock a region that has just been unlocked - the local lock manager enforces a strict first-come first-served model for both local and remote lockers. Sponsored by: Isilon Systems PR: 95247 107555 115524 116679 MFC after: 2 weeks
2008-03-26 15:23:12 +00:00
flp->l_sysid = iflp->l_sysid;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
}
/* convert iBCS2 mode into NetBSD mode */
static int
ioflags2oflags(flags)
int flags;
{
int r = 0;
if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
if (flags & IBCS2_O_RDWR) r |= O_RDWR;
if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK;
if (flags & IBCS2_O_APPEND) r |= O_APPEND;
if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK;
if (flags & IBCS2_O_CREAT) r |= O_CREAT;
if (flags & IBCS2_O_TRUNC) r |= O_TRUNC;
if (flags & IBCS2_O_EXCL) r |= O_EXCL;
if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
return r;
}
/* convert NetBSD mode into iBCS2 mode */
static int
oflags2ioflags(flags)
int flags;
{
int r = 0;
if (flags & O_RDONLY) r |= IBCS2_O_RDONLY;
if (flags & O_WRONLY) r |= IBCS2_O_WRONLY;
if (flags & O_RDWR) r |= IBCS2_O_RDWR;
if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK;
if (flags & O_APPEND) r |= IBCS2_O_APPEND;
if (flags & O_FSYNC) r |= IBCS2_O_SYNC;
if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK;
if (flags & O_CREAT) r |= IBCS2_O_CREAT;
if (flags & O_TRUNC) r |= IBCS2_O_TRUNC;
if (flags & O_EXCL) r |= IBCS2_O_EXCL;
if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY;
return r;
}
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
ibcs2_open(td, uap)
struct thread *td;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
struct ibcs2_open_args *uap;
{
- 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
struct proc *p;
char *path;
int flags, noctty, ret;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
- 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
p = td->td_proc;
noctty = uap->flags & IBCS2_O_NOCTTY;
flags = cvt_o_flags(uap->flags);
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
if (uap->flags & O_CREAT)
- 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
CHECKALTCREAT(td, uap->path, &path);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
else
- 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
CHECKALTEXIST(td, uap->path, &path);
ret = kern_open(td, path, UIO_SYSSPACE, flags, uap->mode);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
Add a hack to emulator to emulat spx device for local X connections. This is truly a hack. The idea is taken from the Linux ibcs2 emulator. To use this feature, you must use the option, options SPX_HACK in your config. Also, in /compat/ibcs2/dev, you must do: lrwxr-xr-x 1 root wheel 9 Oct 15 22:20 X0R@ -> /dev/null lrwxr-xr-x 1 root wheel 7 Oct 15 22:20 nfsd@ -> socksys lrwxr-xr-x 1 root wheel 9 Oct 15 22:20 socksys@ -> /dev/null crw-rw-rw- 1 root wheel 41, 1 Oct 15 22:14 spx Do NOT use old socksys driver as that has been removed. This hack needs /compat/ibcs2/dev/spx to be any device that does NOT exist/configured (so the now non-existant spx major/minor works fine). When an open() is called, the error ENXIO is checked and then the path is checked. If spx open detected, then a unix socket is opened to the hardcoded path "/tmp/.X11-unix/X0". As the Linux hacker author mentioned, the real way would be to detect the getmsg/putmsg through /dev/X0R and /dev/spx. Until this true solution is implemented (if ever), I think this hack is important enough to be put into the tree, even though I don't like it dirtying up my clean code (which is what #ifdef SPX_HACK is for).
1995-10-16 05:52:55 +00:00
#ifdef SPX_HACK
Add sufficient braces to keep egcs happy about potentially ambiguous if/else nesting.
1999-05-06 18:13:11 +00:00
if (ret == ENXIO) {
- 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
if (!strcmp(path, "/compat/ibcs2/dev/spx"))
ret = spx_open(td);
free(path, M_TEMP);
Add sufficient braces to keep egcs happy about potentially ambiguous if/else nesting.
1999-05-06 18:13:11 +00:00
} else
Add a hack to emulator to emulat spx device for local X connections. This is truly a hack. The idea is taken from the Linux ibcs2 emulator. To use this feature, you must use the option, options SPX_HACK in your config. Also, in /compat/ibcs2/dev, you must do: lrwxr-xr-x 1 root wheel 9 Oct 15 22:20 X0R@ -> /dev/null lrwxr-xr-x 1 root wheel 7 Oct 15 22:20 nfsd@ -> socksys lrwxr-xr-x 1 root wheel 9 Oct 15 22:20 socksys@ -> /dev/null crw-rw-rw- 1 root wheel 41, 1 Oct 15 22:14 spx Do NOT use old socksys driver as that has been removed. This hack needs /compat/ibcs2/dev/spx to be any device that does NOT exist/configured (so the now non-existant spx major/minor works fine). When an open() is called, the error ENXIO is checked and then the path is checked. If spx open detected, then a unix socket is opened to the hardcoded path "/tmp/.X11-unix/X0". As the Linux hacker author mentioned, the real way would be to detect the getmsg/putmsg through /dev/X0R and /dev/spx. Until this true solution is implemented (if ever), I think this hack is important enough to be put into the tree, even though I don't like it dirtying up my clean code (which is what #ifdef SPX_HACK is for).
1995-10-16 05:52:55 +00:00
#endif /* SPX_HACK */
- 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
free(path, M_TEMP);
Proc locking.
2001-01-23 23:59:38 +00:00
PROC_LOCK(p);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
Change the cap_rights_t type from uint64_t to a structure that we can extend in the future in a backward compatible (API and ABI) way. The cap_rights_t represents capability rights. We used to use one bit to represent one right, but we are running out of spare bits. Currently the new structure provides place for 114 rights (so 50 more than the previous cap_rights_t), but it is possible to grow the structure to hold at least 285 rights, although we can make it even larger if 285 rights won't be enough. The structure definition looks like this: struct cap_rights { uint64_t cr_rights[CAP_RIGHTS_VERSION + 2]; }; The initial CAP_RIGHTS_VERSION is 0. The top two bits in the first element of the cr_rights[] array contain total number of elements in the array - 2. This means if those two bits are equal to 0, we have 2 array elements. The top two bits in all remaining array elements should be 0. The next five bits in all array elements contain array index. Only one bit is used and bit position in this five-bits range defines array index. This means there can be at most five array elements in the future. To define new right the CAPRIGHT() macro must be used. The macro takes two arguments - an array index and a bit to set, eg. #define CAP_PDKILL CAPRIGHT(1, 0x0000000000000800ULL) We still support aliases that combine few rights, but the rights have to belong to the same array element, eg: #define CAP_LOOKUP CAPRIGHT(0, 0x0000000000000400ULL) #define CAP_FCHMOD CAPRIGHT(0, 0x0000000000002000ULL) #define CAP_FCHMODAT (CAP_FCHMOD | CAP_LOOKUP) There is new API to manage the new cap_rights_t structure: cap_rights_t *cap_rights_init(cap_rights_t *rights, ...); void cap_rights_set(cap_rights_t *rights, ...); void cap_rights_clear(cap_rights_t *rights, ...); bool cap_rights_is_set(const cap_rights_t *rights, ...); bool cap_rights_is_valid(const cap_rights_t *rights); void cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src); void cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src); bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little); Capability rights to the cap_rights_init(), cap_rights_set(), cap_rights_clear() and cap_rights_is_set() functions are provided by separating them with commas, eg: cap_rights_t rights; cap_rights_init(&rights, CAP_READ, CAP_WRITE, CAP_FSTAT); There is no need to terminate the list of rights, as those functions are actually macros that take care of the termination, eg: #define cap_rights_set(rights, ...) \ __cap_rights_set((rights), __VA_ARGS__, 0ULL) void __cap_rights_set(cap_rights_t *rights, ...); Thanks to using one bit as an array index we can assert in those functions that there are no two rights belonging to different array elements provided together. For example this is illegal and will be detected, because CAP_LOOKUP belongs to element 0 and CAP_PDKILL to element 1: cap_rights_init(&rights, CAP_LOOKUP | CAP_PDKILL); Providing several rights that belongs to the same array's element this way is correct, but is not advised. It should only be used for aliases definition. This commit also breaks compatibility with some existing Capsicum system calls, but I see no other way to do that. This should be fine as Capsicum is still experimental and this change is not going to 9.x. Sponsored by: The FreeBSD Foundation
2013-09-05 00:09:56 +00:00
cap_rights_t rights;
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 file *fp;
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
int error;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
Change the cap_rights_t type from uint64_t to a structure that we can extend in the future in a backward compatible (API and ABI) way. The cap_rights_t represents capability rights. We used to use one bit to represent one right, but we are running out of spare bits. Currently the new structure provides place for 114 rights (so 50 more than the previous cap_rights_t), but it is possible to grow the structure to hold at least 285 rights, although we can make it even larger if 285 rights won't be enough. The structure definition looks like this: struct cap_rights { uint64_t cr_rights[CAP_RIGHTS_VERSION + 2]; }; The initial CAP_RIGHTS_VERSION is 0. The top two bits in the first element of the cr_rights[] array contain total number of elements in the array - 2. This means if those two bits are equal to 0, we have 2 array elements. The top two bits in all remaining array elements should be 0. The next five bits in all array elements contain array index. Only one bit is used and bit position in this five-bits range defines array index. This means there can be at most five array elements in the future. To define new right the CAPRIGHT() macro must be used. The macro takes two arguments - an array index and a bit to set, eg. #define CAP_PDKILL CAPRIGHT(1, 0x0000000000000800ULL) We still support aliases that combine few rights, but the rights have to belong to the same array element, eg: #define CAP_LOOKUP CAPRIGHT(0, 0x0000000000000400ULL) #define CAP_FCHMOD CAPRIGHT(0, 0x0000000000002000ULL) #define CAP_FCHMODAT (CAP_FCHMOD | CAP_LOOKUP) There is new API to manage the new cap_rights_t structure: cap_rights_t *cap_rights_init(cap_rights_t *rights, ...); void cap_rights_set(cap_rights_t *rights, ...); void cap_rights_clear(cap_rights_t *rights, ...); bool cap_rights_is_set(const cap_rights_t *rights, ...); bool cap_rights_is_valid(const cap_rights_t *rights); void cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src); void cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src); bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little); Capability rights to the cap_rights_init(), cap_rights_set(), cap_rights_clear() and cap_rights_is_set() functions are provided by separating them with commas, eg: cap_rights_t rights; cap_rights_init(&rights, CAP_READ, CAP_WRITE, CAP_FSTAT); There is no need to terminate the list of rights, as those functions are actually macros that take care of the termination, eg: #define cap_rights_set(rights, ...) \ __cap_rights_set((rights), __VA_ARGS__, 0ULL) void __cap_rights_set(cap_rights_t *rights, ...); Thanks to using one bit as an array index we can assert in those functions that there are no two rights belonging to different array elements provided together. For example this is illegal and will be detected, because CAP_LOOKUP belongs to element 0 and CAP_PDKILL to element 1: cap_rights_init(&rights, CAP_LOOKUP | CAP_PDKILL); Providing several rights that belongs to the same array's element this way is correct, but is not advised. It should only be used for aliases definition. This commit also breaks compatibility with some existing Capsicum system calls, but I see no other way to do that. This should be fine as Capsicum is still experimental and this change is not going to 9.x. Sponsored by: The FreeBSD Foundation
2013-09-05 00:09:56 +00:00
error = fget(td, td->td_retval[0],
cap_rights_init(&rights, CAP_IOCTL), &fp);
Proc locking.
2001-01-23 23:59:38 +00:00
PROC_UNLOCK(p);
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)
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
return (EBADF);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
/* ignore any error, just give it a try */
if (fp->f_type == DTYPE_VNODE)
In continuation of early fileop credential changes, modify fo_ioctl() to accept an 'active_cred' argument reflecting the credential of the thread initiating the ioctl operation. - Change fo_ioctl() to accept active_cred; change consumers of the fo_ioctl() interface to generally pass active_cred from td->td_ucred. - In fifofs, initialize filetmp.f_cred to ap->a_cred so that the invocations of soo_ioctl() are provided access to the calling f_cred. Pass ap->a_td->td_ucred as the active_cred, but note that this is required because we don't yet distinguish file_cred and active_cred in invoking VOP's. - Update kqueue_ioctl() for its new argument. - Update pipe_ioctl() for its new argument, pass active_cred rather than td_ucred to MAC for authorization. - Update soo_ioctl() for its new argument. - Update vn_ioctl() for its new argument, use active_cred rather than td->td_ucred to authorize VOP_IOCTL() and the associated VOP_GETATTR(). Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs
2002-08-17 02:36:16 +00:00
fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, td->td_ucred,
td);
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);
Proc locking.
2001-01-23 23:59:38 +00:00
} else
PROC_UNLOCK(p);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
return ret;
}
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
ibcs2_creat(td, uap)
struct thread *td;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
struct ibcs2_creat_args *uap;
- 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
{
char *path;
int error;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
- 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
CHECKALTCREAT(td, uap->path, &path);
error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
uap->mode);
free(path, M_TEMP);
return (error);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
}
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
ibcs2_access(td, uap)
struct thread *td;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
struct ibcs2_access_args *uap;
{
- 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
char *path;
int error;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
- 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
CHECKALTEXIST(td, uap->path, &path);
Improve *access*() parameter name consistency. The current code mixes the use of `flags' and `mode'. This is a bit confusing, since the faccessat() function as a `flag' parameter to store the AT_ flag. Make this less confusing by using the same name as used in the POSIX specification -- `amode'.
2011-11-19 06:35:15 +00:00
error = kern_access(td, path, UIO_SYSSPACE, uap->amode);
- 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
free(path, M_TEMP);
return (error);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
}
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
ibcs2_fcntl(td, uap)
struct thread *td;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
struct ibcs2_fcntl_args *uap;
{
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
intptr_t arg;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
int error;
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
struct flock fl;
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
struct ibcs2_flock ifl;
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
arg = (intptr_t)uap->arg;
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
switch(uap->cmd) {
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
case IBCS2_F_DUPFD:
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
return (kern_fcntl(td, uap->fd, F_DUPFD, arg));
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
case IBCS2_F_GETFD:
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
return (kern_fcntl(td, uap->fd, F_GETFD, arg));
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
case IBCS2_F_SETFD:
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
return (kern_fcntl(td, uap->fd, F_SETFD, arg));
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
case IBCS2_F_GETFL:
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
error = kern_fcntl(td, uap->fd, F_GETFL, arg);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
if (error)
return error;
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
td->td_retval[0] = oflags2ioflags(td->td_retval[0]);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
return error;
case IBCS2_F_SETFL:
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
return (kern_fcntl(td, uap->fd, F_SETFL,
ioflags2oflags(arg)));
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
case IBCS2_F_GETLK:
{
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
ibcs2_flock_len);
if (error)
return error;
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
cvt_iflock2flock(&ifl, &fl);
error = kern_fcntl(td, uap->fd, F_GETLK, (intptr_t)&fl);
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
if (error)
return error;
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
cvt_flock2iflock(&fl, &ifl);
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
return copyout((caddr_t)&ifl, (caddr_t)uap->arg,
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
ibcs2_flock_len);
}
case IBCS2_F_SETLK:
{
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
ibcs2_flock_len);
if (error)
return error;
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
cvt_iflock2flock(&ifl, &fl);
return (kern_fcntl(td, uap->fd, F_SETLK, (intptr_t)&fl));
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
}
case IBCS2_F_SETLKW:
{
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
error = copyin((caddr_t)uap->arg, (caddr_t)&ifl,
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
ibcs2_flock_len);
if (error)
return error;
Fix the ABI wrappers to use kern_fcntl() rather than calling fcntl() directly. This removes a few more users of the stackgap and also marks the syscalls using these wrappers MP safe where appropriate. Tested on: i386 with linux acroread5 Compiled on: i386, alpha LINT
2004-08-24 20:21:21 +00:00
cvt_iflock2flock(&ifl, &fl);
return (kern_fcntl(td, uap->fd, F_SETLKW, (intptr_t)&fl));
Import of original NetBSD's ibcs2 emulator sources by Scott Bartram, which is used as a basis for a more complete and cleaner ibcs2 emulator. (snapshot about May 1995 with a few files from September 1995) Some files and code from old emulator still remains. New files, features, and changes have been implemented by myself, which will be shown in following commits.
1995-10-10 07:27:24 +00:00
}
}
return ENOSYS;
}
Reference in New Issue Copy Permalink