141 lines
3.6 KiB
C
141 lines
3.6 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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* $FreeBSD$
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*/
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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 <machine/../linux/linux.h>
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#include <machine/../linux/linux_proto.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 != NULL) {
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l_int len = strlen(value);
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error = copyout(value, la->oldval, len + 1);
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if (!error && la->oldlenp != NULL)
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error = copyout(&len, 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 != NULL)
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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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l_int *mib;
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int error, i;
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error = copyin((caddr_t)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(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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printf("linux: sysctl: unhandled name=");
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for (i = 0; i < la.nlen; i++)
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printf("%c%d", (i) ? ',' : '{', mib[i]);
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printf("}\n");
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free(mib, M_TEMP);
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return (ENOTDIR);
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}
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int
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linux_sethostname(struct thread *td, struct linux_sethostname_args *uap)
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{
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int name[2];
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int error;
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name[0] = CTL_KERN;
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name[1] = KERN_HOSTNAME;
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mtx_lock(&Giant);
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if ((error = suser_cred(td->td_ucred, PRISON_ROOT)) == 0) {
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error = userland_sysctl(td, name, 2, 0, 0, 0,
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uap->hostname, uap->len, 0);
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}
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mtx_unlock(&Giant);
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return (error);
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}
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