4af2762336
on AMD64, and the general case where the emulated platform has different size pointers than we use natively: - declare certain structure members as l_uintptr_t and use the new PTRIN and PTROUT macros to convert to and from native pointers. - declare some structures __packed on amd64 when the layout would differ from that used on i386. - include <machine/../linux32/linux.h> instead of <machine/../linux/linux.h> if compiling with COMPAT_LINUX32. This will need to be revisited before 32-bit and 64-bit Linux emulation support can coexist in the same kernel. - other small scattered changes. This should be a no-op on i386 and Alpha.
144 lines
3.8 KiB
C
144 lines
3.8 KiB
C
/*-
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* Copyright (c) 2001 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <sys/sbuf.h>
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#include "opt_compat.h"
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#if !COMPAT_LINUX32
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#include <machine/../linux/linux.h>
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#include <machine/../linux/linux_proto.h>
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#else
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#include <machine/../linux32/linux.h>
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#include <machine/../linux32/linux32_proto.h>
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#endif
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#include <compat/linux/linux_util.h>
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#define LINUX_CTL_KERN 1
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#define LINUX_CTL_VM 2
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#define LINUX_CTL_NET 3
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#define LINUX_CTL_PROC 4
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#define LINUX_CTL_FS 5
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#define LINUX_CTL_DEBUG 6
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#define LINUX_CTL_DEV 7
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#define LINUX_CTL_BUS 8
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/* CTL_KERN names */
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#define LINUX_KERN_OSTYPE 1
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#define LINUX_KERN_OSRELEASE 2
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#define LINUX_KERN_OSREV 3
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#define LINUX_KERN_VERSION 4
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static int
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handle_string(struct l___sysctl_args *la, char *value)
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{
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int error;
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if (la->oldval != 0) {
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l_int len = strlen(value);
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error = copyout(value, PTRIN(la->oldval), len + 1);
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if (!error && la->oldlenp != 0)
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error = copyout(&len, PTRIN(la->oldlenp), sizeof(len));
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if (error)
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return (error);
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}
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if (la->newval != 0)
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return (ENOTDIR);
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return (0);
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}
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int
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linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
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{
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struct l___sysctl_args la;
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struct sbuf *sb;
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l_int *mib;
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int error, i;
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error = copyin(args->args, &la, sizeof(la));
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if (error)
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return (error);
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if (la.nlen <= 0 || la.nlen > LINUX_CTL_MAXNAME)
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return (ENOTDIR);
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mib = malloc(la.nlen * sizeof(l_int), M_TEMP, M_WAITOK);
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error = copyin(PTRIN(la.name), mib, la.nlen * sizeof(l_int));
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if (error) {
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free(mib, M_TEMP);
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return (error);
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}
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switch (mib[0]) {
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case LINUX_CTL_KERN:
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if (la.nlen < 2)
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break;
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switch (mib[1]) {
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case LINUX_KERN_VERSION:
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error = handle_string(&la, version);
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free(mib, M_TEMP);
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return (error);
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default:
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break;
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}
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break;
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default:
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break;
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}
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sb = sbuf_new(NULL, NULL, 20 + la.nlen * 5, SBUF_AUTOEXTEND);
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if (sb == NULL) {
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linux_msg(td, "sysctl is not implemented");
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} else {
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sbuf_printf(sb, "sysctl ");
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for (i = 0; i < la.nlen; i++)
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sbuf_printf(sb, "%c%d", (i) ? ',' : '{', mib[i]);
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sbuf_printf(sb, "} is not implemented");
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sbuf_finish(sb);
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linux_msg(td, "%s", sbuf_data(sb));
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sbuf_delete(sb);
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}
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free(mib, M_TEMP);
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return (ENOTDIR);
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}
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