The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/kern/kern_xxx.c

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*
    2  * Copyright (c) 1982, 1986, 1989, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      @(#)kern_xxx.c  8.2 (Berkeley) 11/14/93
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD: releng/5.3/sys/kern/kern_xxx.c 136588 2004-10-16 08:43:07Z cvs2svn $");
   34 
   35 #include "opt_compat.h"
   36 
   37 #include <sys/param.h>
   38 #include <sys/systm.h>
   39 #include <sys/sysproto.h>
   40 #include <sys/kernel.h>
   41 #include <sys/proc.h>
   42 #include <sys/lock.h>
   43 #include <sys/mutex.h>
   44 #include <sys/sysctl.h>
   45 #include <sys/utsname.h>
   46 
   47 
   48 #if defined(COMPAT_43)
   49 
   50 #ifndef _SYS_SYSPROTO_H_
   51 struct gethostname_args {
   52         char    *hostname;
   53         u_int   len;
   54 };
   55 #endif
   56 /*
   57  * MPSAFE
   58  */
   59 /* ARGSUSED */
   60 int
   61 ogethostname(td, uap)
   62         struct thread *td;
   63         struct gethostname_args *uap;
   64 {
   65         int name[2];
   66         int error;
   67         size_t len = uap->len;
   68 
   69         name[0] = CTL_KERN;
   70         name[1] = KERN_HOSTNAME;
   71         mtx_lock(&Giant);
   72         error = userland_sysctl(td, name, 2, uap->hostname, &len, 1, 0, 0, 0);
   73         mtx_unlock(&Giant);
   74         return(error);
   75 }
   76 
   77 #ifndef _SYS_SYSPROTO_H_
   78 struct sethostname_args {
   79         char    *hostname;
   80         u_int   len;
   81 };
   82 #endif
   83 /*
   84  * MPSAFE
   85  */
   86 /* ARGSUSED */
   87 int
   88 osethostname(td, uap)
   89         struct thread *td;
   90         register struct sethostname_args *uap;
   91 {
   92         int name[2];
   93         int error;
   94 
   95         name[0] = CTL_KERN;
   96         name[1] = KERN_HOSTNAME;
   97         mtx_lock(&Giant);
   98         if ((error = suser_cred(td->td_ucred, SUSER_ALLOWJAIL)) == 0) {
   99                 error = userland_sysctl(td, name, 2, 0, 0, 0,
  100                     uap->hostname, uap->len, 0);
  101         }
  102         mtx_unlock(&Giant);
  103         return (error);
  104 }
  105 
  106 #ifndef _SYS_SYSPROTO_H_
  107 struct ogethostid_args {
  108         int     dummy;
  109 };
  110 #endif
  111 /*
  112  * MPSAFE
  113  */
  114 /* ARGSUSED */
  115 int
  116 ogethostid(td, uap)
  117         struct thread *td;
  118         struct ogethostid_args *uap;
  119 {
  120 
  121         *(long *)(td->td_retval) = hostid;
  122         return (0);
  123 }
  124 #endif /* COMPAT_43 */
  125 
  126 #ifdef COMPAT_43
  127 #ifndef _SYS_SYSPROTO_H_
  128 struct osethostid_args {
  129         long    hostid;
  130 };
  131 #endif
  132 /*
  133  * MPSAFE
  134  */
  135 /* ARGSUSED */
  136 int
  137 osethostid(td, uap)
  138         struct thread *td;
  139         struct osethostid_args *uap;
  140 {
  141         int error;
  142 
  143         if ((error = suser(td)))
  144                 return (error);
  145         mtx_lock(&Giant);
  146         hostid = uap->hostid;
  147         mtx_unlock(&Giant);
  148         return (0);
  149 }
  150 
  151 /*
  152  * MPSAFE
  153  */
  154 int
  155 oquota(td, uap)
  156         struct thread *td;
  157         struct oquota_args *uap;
  158 {
  159         return (ENOSYS);
  160 }
  161 #endif /* COMPAT_43 */
  162 
  163 /*
  164  * This is the FreeBSD-1.1 compatable uname(2) interface.  These
  165  * days it is done in libc as a wrapper around a bunch of sysctl's.
  166  * This must maintain the old 1.1 binary ABI.
  167  */
  168 #if SYS_NMLN != 32
  169 #error "FreeBSD-1.1 uname syscall has been broken"
  170 #endif
  171 #ifndef _SYS_SYSPROTO_H_
  172 struct uname_args {
  173         struct utsname  *name;
  174 };
  175 #endif
  176 
  177 /*
  178  * MPSAFE
  179  */
  180 /* ARGSUSED */
  181 int
  182 uname(td, uap)
  183         struct thread *td;
  184         struct uname_args *uap;
  185 {
  186         int name[2], error;
  187         size_t len;
  188         char *s, *us;
  189 
  190         name[0] = CTL_KERN;
  191         name[1] = KERN_OSTYPE;
  192         len = sizeof (uap->name->sysname);
  193         mtx_lock(&Giant);
  194         error = userland_sysctl(td, name, 2, uap->name->sysname, &len, 
  195                 1, 0, 0, 0);
  196         if (error)
  197                 goto done2;
  198         subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
  199 
  200         name[1] = KERN_HOSTNAME;
  201         len = sizeof uap->name->nodename;
  202         error = userland_sysctl(td, name, 2, uap->name->nodename, &len, 
  203                 1, 0, 0, 0);
  204         if (error)
  205                 goto done2;
  206         subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
  207 
  208         name[1] = KERN_OSRELEASE;
  209         len = sizeof uap->name->release;
  210         error = userland_sysctl(td, name, 2, uap->name->release, &len, 
  211                 1, 0, 0, 0);
  212         if (error)
  213                 goto done2;
  214         subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
  215 
  216 /*
  217         name = KERN_VERSION;
  218         len = sizeof uap->name->version;
  219         error = userland_sysctl(td, name, 2, uap->name->version, &len, 
  220                 1, 0, 0, 0);
  221         if (error)
  222                 goto done2;
  223         subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
  224 */
  225 
  226 /*
  227  * this stupid hackery to make the version field look like FreeBSD 1.1
  228  */
  229         for(s = version; *s && *s != '#'; s++);
  230 
  231         for(us = uap->name->version; *s && *s != ':'; s++) {
  232                 error = subyte( us++, *s);
  233                 if (error)
  234                         goto done2;
  235         }
  236         error = subyte( us++, 0);
  237         if (error)
  238                 goto done2;
  239 
  240         name[0] = CTL_HW;
  241         name[1] = HW_MACHINE;
  242         len = sizeof uap->name->machine;
  243         error = userland_sysctl(td, name, 2, uap->name->machine, &len, 
  244                 1, 0, 0, 0);
  245         if (error)
  246                 goto done2;
  247         subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
  248 done2:
  249         mtx_unlock(&Giant);
  250         return (error);
  251 }
  252 
  253 #ifndef _SYS_SYSPROTO_H_
  254 struct getdomainname_args {
  255         char    *domainname;
  256         int     len;
  257 };
  258 #endif
  259 
  260 /*
  261  * MPSAFE
  262  */
  263 /* ARGSUSED */
  264 int
  265 getdomainname(td, uap)
  266         struct thread *td;
  267         struct getdomainname_args *uap;
  268 {
  269         int domainnamelen;
  270         int error;
  271 
  272         mtx_lock(&Giant);
  273         domainnamelen = strlen(domainname) + 1;
  274         if ((u_int)uap->len > domainnamelen)
  275                 uap->len = domainnamelen;
  276         error = copyout(domainname, uap->domainname, uap->len);
  277         mtx_unlock(&Giant);
  278         return (error);
  279 }
  280 
  281 #ifndef _SYS_SYSPROTO_H_
  282 struct setdomainname_args {
  283         char    *domainname;
  284         int     len;
  285 };
  286 #endif
  287 
  288 /*
  289  * MPSAFE
  290  */
  291 /* ARGSUSED */
  292 int
  293 setdomainname(td, uap)
  294         struct thread *td;
  295         struct setdomainname_args *uap;
  296 {
  297         int error, domainnamelen;
  298 
  299         mtx_lock(&Giant);
  300         if ((error = suser(td)))
  301                 goto done2;
  302         if ((u_int)uap->len > sizeof (domainname) - 1) {
  303                 error = EINVAL;
  304                 goto done2;
  305         }
  306         domainnamelen = uap->len;
  307         error = copyin(uap->domainname, domainname, uap->len);
  308         domainname[domainnamelen] = 0;
  309 done2:
  310         mtx_unlock(&Giant);
  311         return (error);
  312 }
  313 

Cache object: 055b25dee509d99e89f64c2103f81160


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.