diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libarch/i386/Makefile | 11 | ||||
| -rw-r--r-- | lib/libarch/i386/i386_get_ldt.2 | 124 | ||||
| -rw-r--r-- | lib/libarch/i386/i386_get_ldt.c | 45 | ||||
| -rw-r--r-- | lib/libarch/i386/i386_set_ldt.c | 45 |
4 files changed, 4 insertions, 221 deletions
diff --git a/lib/libarch/i386/Makefile b/lib/libarch/i386/Makefile index 4cb11d3dc2e..873c20531ef 100644 --- a/lib/libarch/i386/Makefile +++ b/lib/libarch/i386/Makefile @@ -1,21 +1,18 @@ -# $OpenBSD: Makefile,v 1.7 2014/07/16 20:02:17 okan Exp $ +# $OpenBSD: Makefile,v 1.8 2016/03/03 12:41:29 naddy Exp $ # $NetBSD: Makefile,v 1.1 1996/02/21 02:45:47 jtk Exp $ -MAN+= i386_get_ldt.2 \ - i386_get_fsbase.2 i386_get_gsbase.2 \ +MAN+= i386_get_fsbase.2 i386_get_gsbase.2 \ i386_iopl.2 i386_get_ioperm.2 \ i386_vm86.2 MANSUBDIR=i386 -MLINKS+=i386_get_ldt.2 i386_set_ldt.2 \ - i386_get_fsbase.2 i386_set_fsbase.2 \ +MLINKS+=i386_get_fsbase.2 i386_set_fsbase.2 \ i386_get_gsbase.2 i386_set_gsbase.2 \ i386_get_ioperm.2 i386_set_ioperm.2 .if ${MACHINE} == "i386" .PATH: ${LIBC}/i386 NOPIC= -SRCS+= i386_get_ldt.c i386_set_ldt.c \ - i386_iopl.c i386_get_ioperm.c i386_set_ioperm.c \ +SRCS+= i386_iopl.c i386_get_ioperm.c i386_set_ioperm.c \ i386_get_fsbase.c i386_get_gsbase.c \ i386_set_fsbase.c i386_set_gsbase.c \ i386_vm86.c diff --git a/lib/libarch/i386/i386_get_ldt.2 b/lib/libarch/i386/i386_get_ldt.2 deleted file mode 100644 index 6ed839e0794..00000000000 --- a/lib/libarch/i386/i386_get_ldt.2 +++ /dev/null @@ -1,124 +0,0 @@ -.\" $OpenBSD: i386_get_ldt.2,v 1.18 2015/09/10 17:55:21 schwarze Exp $ -.\" -.\" Copyright (c) 1980, 1991 Regents of the University of California. -.\" 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. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. -.\" -.\" from: @(#)fork.2 6.5 (Berkeley) 3/10/91 -.\" $NetBSD: i386_get_ldt.2,v 1.3 1996/01/05 14:56:44 pk Exp $ -.\" -.Dd $Mdocdate: September 10 2015 $ -.Dt I386_GET_LDT 2 i386 -.Os -.Sh NAME -.Nm i386_get_ldt , -.Nm i386_set_ldt -.Nd manage i386 per-process Local Descriptor Table entries -.Sh SYNOPSIS -.In sys/types.h -.In machine/segments.h -.In machine/sysarch.h -.Ft int -.Fn i386_get_ldt "int start_sel" "union descriptor *descs" "int num_sels" -.Ft int -.Fn i386_set_ldt "int start_sel" "union descriptor *descs" "int num_sels" -.Sh DESCRIPTION -.Fn i386_get_ldt -returns a list of the i386 descriptors in the current process' -LDT. -.Fn i386_set_ldt -sets a list of i386 descriptors in the current process' -LDT. -For both routines, -.Fa start_sel -specifies the index of the selector in the LDT at which to begin and -.Fa descs -points to an array of -.Fa num_sels -descriptors to be set or returned. -.Pp -Each entry in the -.Fa descs -array can be either a segment_descriptor or a gate_descriptor, -as defined in -.In i386/segments.h . -These structures are defined by the architecture -as disjoint bit-fields, so care must be taken in constructing them. -.Pp -Before this API can be used the functionality has to be enabled -using the machdep.userldt -.Xr sysctl 8 -variable. -.Pp -.Sy Note: -Code using the -.Fn i386_get_ldt -and -.Fn i386_set_ldt -functions must be compiled using -.Cm -li386 . -.Sh RETURN VALUES -Upon successful completion, -.Fn i386_get_ldt -returns the number of i386 descriptors copied into -.Fa descs -from the current process' LDT. -Otherwise, a value of \-1 is returned and the global -variable -.Va errno -is set to indicate the error. -.Pp -Upon successful completion, -.Fn i386_set_ldt -returns the first selector set; -if the kernel allocated a descriptor in the LDT, -the allocated index is returned. -Otherwise, a value of \-1 is returned and the global -variable -.Va errno -is set to indicate the error. -.Sh ERRORS -.Fn i386_get_ldt -and -.Fn i386_set_ldt -will fail if: -.Bl -tag -width [EINVAL] -.It Bq Er EINVAL -An inappropriate parameter was used for -.Fa start_sel -or -.Fa num_sels . -.It Bq Er EACCES -The caller attempted to use a descriptor that would -circumvent protection or cause a failure. -.El -.Sh REFERENCES -.Rs -.%A Intel -.%T i386 Microprocessor Programmer's Reference Manual -.Re -.Sh WARNING -You can really hose your process using this. diff --git a/lib/libarch/i386/i386_get_ldt.c b/lib/libarch/i386/i386_get_ldt.c deleted file mode 100644 index 649bcf8eb48..00000000000 --- a/lib/libarch/i386/i386_get_ldt.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1993 John Brezak - * 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. - * - */ - -#include <sys/types.h> - -#include <machine/segments.h> -#include <machine/sysarch.h> - -int -i386_get_ldt(int start, union descriptor *desc, int num) -{ - struct i386_get_ldt_args p; - - p.start = start; - p.desc = desc; - p.num = num; - - return sysarch(I386_GET_LDT, &p); -} diff --git a/lib/libarch/i386/i386_set_ldt.c b/lib/libarch/i386/i386_set_ldt.c deleted file mode 100644 index 08fef8c08a7..00000000000 --- a/lib/libarch/i386/i386_set_ldt.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1993 John Brezak - * 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. - * - */ - -#include <sys/types.h> - -#include <machine/segments.h> -#include <machine/sysarch.h> - -int -i386_set_ldt(int start, union descriptor *desc, int num) -{ - struct i386_set_ldt_args p; - - p.start = start; - p.desc = desc; - p.num = num; - - return sysarch(I386_SET_LDT, &p); -} |