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kern_info_43.c revision 1.35
      1  1.35  christos /*	$NetBSD: kern_info_43.c,v 1.35 2014/03/24 20:08:08 christos Exp $	*/
      2   1.1  christos 
      3   1.1  christos /*
      4   1.1  christos  * Copyright (c) 1982, 1986, 1991, 1993
      5   1.1  christos  *	The Regents of the University of California.  All rights reserved.
      6   1.1  christos  *
      7   1.1  christos  * Redistribution and use in source and binary forms, with or without
      8   1.1  christos  * modification, are permitted provided that the following conditions
      9   1.1  christos  * are met:
     10   1.1  christos  * 1. Redistributions of source code must retain the above copyright
     11   1.1  christos  *    notice, this list of conditions and the following disclaimer.
     12   1.1  christos  * 2. Redistributions in binary form must reproduce the above copyright
     13   1.1  christos  *    notice, this list of conditions and the following disclaimer in the
     14   1.1  christos  *    documentation and/or other materials provided with the distribution.
     15  1.17       agc  * 3. Neither the name of the University nor the names of its contributors
     16   1.1  christos  *    may be used to endorse or promote products derived from this software
     17   1.1  christos  *    without specific prior written permission.
     18   1.1  christos  *
     19   1.1  christos  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20   1.1  christos  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21   1.1  christos  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22   1.1  christos  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23   1.1  christos  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24   1.1  christos  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25   1.1  christos  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26   1.1  christos  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27   1.1  christos  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28   1.1  christos  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29   1.1  christos  * SUCH DAMAGE.
     30   1.1  christos  *
     31   1.1  christos  *	@(#)subr_xxx.c	8.1 (Berkeley) 6/10/93
     32   1.1  christos  */
     33  1.13     lukem 
     34  1.13     lukem #include <sys/cdefs.h>
     35  1.35  christos __KERNEL_RCSID(0, "$NetBSD: kern_info_43.c,v 1.35 2014/03/24 20:08:08 christos Exp $");
     36   1.8       mrg 
     37   1.1  christos #include <sys/param.h>
     38   1.1  christos #include <sys/systm.h>
     39   1.1  christos #include <sys/filedesc.h>
     40   1.1  christos #include <sys/kernel.h>
     41   1.1  christos #include <sys/vnode.h>
     42   1.1  christos #include <sys/proc.h>
     43   1.1  christos #include <sys/file.h>
     44   1.1  christos #include <sys/socket.h>
     45   1.1  christos #include <sys/socketvar.h>
     46   1.1  christos #include <sys/stat.h>
     47   1.1  christos #include <sys/ioctl.h>
     48   1.1  christos #include <sys/fcntl.h>
     49   1.1  christos #include <sys/syslog.h>
     50   1.1  christos #include <sys/unistd.h>
     51   1.1  christos #include <sys/resourcevar.h>
     52  1.22      elad #include <sys/kauth.h>
     53  1.35  christos #include <sys/cpu.h>
     54   1.9       mrg 
     55  1.12       mrg #include <uvm/uvm_extern.h>
     56   1.1  christos #include <sys/sysctl.h>
     57   1.7       mrg 
     58   1.1  christos #include <sys/mount.h>
     59   1.1  christos #include <sys/syscallargs.h>
     60  1.34  christos #include <compat/sys/time.h>
     61   1.1  christos 
     62   1.1  christos int
     63  1.30       dsl compat_43_sys_getdtablesize(struct lwp *l, const void *v, register_t *retval)
     64   1.1  christos {
     65  1.14   thorpej 	struct proc *p = l->l_proc;
     66   1.1  christos 
     67  1.33        ad 	mutex_enter(p->p_lock);
     68   1.1  christos 	*retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles);
     69  1.33        ad 	mutex_exit(p->p_lock);
     70   1.1  christos 	return (0);
     71   1.1  christos }
     72   1.1  christos 
     73   1.1  christos 
     74   1.1  christos /* ARGSUSED */
     75   1.1  christos int
     76  1.30       dsl compat_43_sys_gethostid(struct lwp *l, const void *v, register_t *retval)
     77   1.1  christos {
     78   1.1  christos 
     79   1.1  christos 	*(int32_t *)retval = hostid;
     80   1.1  christos 	return (0);
     81   1.1  christos }
     82   1.1  christos 
     83   1.1  christos 
     84   1.1  christos /*ARGSUSED*/
     85   1.1  christos int
     86  1.30       dsl compat_43_sys_gethostname(struct lwp *l, const struct compat_43_sys_gethostname_args *uap, register_t *retval)
     87   1.2   thorpej {
     88  1.30       dsl 	/* {
     89   1.1  christos 		syscallarg(char *) hostname;
     90   1.1  christos 		syscallarg(u_int) len;
     91  1.30       dsl 	} */
     92  1.19    atatat 	int name[2];
     93   1.5       cgd 	size_t sz;
     94   1.1  christos 
     95  1.19    atatat 	name[0] = CTL_KERN;
     96  1.19    atatat 	name[1] = KERN_HOSTNAME;
     97   1.5       cgd 	sz = SCARG(uap, len);
     98  1.19    atatat 	return (old_sysctl(&name[0], 2, SCARG(uap, hostname), &sz, 0, 0, l));
     99   1.1  christos }
    100   1.1  christos 
    101   1.1  christos #define	KINFO_PROC		(0<<8)
    102   1.1  christos #define	KINFO_RT		(1<<8)
    103   1.1  christos #define	KINFO_VNODE		(2<<8)
    104   1.1  christos #define	KINFO_FILE		(3<<8)
    105   1.1  christos #define	KINFO_METER		(4<<8)
    106   1.1  christos #define	KINFO_LOADAVG		(5<<8)
    107   1.1  christos #define	KINFO_CLOCKRATE		(6<<8)
    108   1.6  christos #define	KINFO_BSDI_SYSINFO	(101<<8)
    109   1.6  christos 
    110   1.6  christos 
    111   1.6  christos /*
    112   1.6  christos  * The string data is appended to the end of the bsdi_si structure during
    113   1.6  christos  * copyout. The "char *" offsets in the bsdi_si struct are relative to the
    114  1.20     perry  * base of the bsdi_si struct.
    115   1.6  christos  */
    116   1.6  christos struct bsdi_si {
    117   1.6  christos         char    *machine;
    118   1.6  christos         char    *cpu_model;
    119   1.6  christos         long    ncpu;
    120   1.6  christos         long    cpuspeed;
    121   1.6  christos         long    hwflags;
    122   1.6  christos         u_long  physmem;
    123   1.6  christos         u_long  usermem;
    124   1.6  christos         u_long  pagesize;
    125   1.6  christos 
    126   1.6  christos         char    *ostype;
    127   1.6  christos         char    *osrelease;
    128   1.6  christos         long    os_revision;
    129   1.6  christos         long    posix1_version;
    130   1.6  christos         char    *version;
    131   1.6  christos 
    132   1.6  christos         long    hz;
    133   1.6  christos         long    profhz;
    134   1.6  christos         int     ngroups_max;
    135   1.6  christos         long    arg_max;
    136   1.6  christos         long    open_max;
    137   1.6  christos         long    child_max;
    138   1.6  christos 
    139  1.34  christos         struct  timeval50 boottime;
    140   1.6  christos         char    *hostname;
    141   1.6  christos };
    142   1.1  christos 
    143   1.1  christos int
    144  1.30       dsl compat_43_sys_getkerninfo(struct lwp *l, const struct compat_43_sys_getkerninfo_args *uap, register_t *retval)
    145   1.2   thorpej {
    146  1.30       dsl 	/* {
    147   1.1  christos 		syscallarg(int) op;
    148   1.1  christos 		syscallarg(char *) where;
    149   1.1  christos 		syscallarg(int *) size;
    150   1.1  christos 		syscallarg(int) arg;
    151  1.30       dsl 	} */
    152  1.19    atatat 	int error, name[6];
    153   1.1  christos 	size_t size;
    154   1.1  christos 
    155  1.29  christos 	if (SCARG(uap, size) && (error = copyin((void *)SCARG(uap, size),
    156  1.29  christos 	    (void *)&size, sizeof(size))))
    157   1.1  christos 		return (error);
    158   1.1  christos 
    159   1.1  christos 	switch (SCARG(uap, op) & 0xff00) {
    160   1.1  christos 
    161   1.1  christos 	case KINFO_RT:
    162  1.19    atatat 		name[0] = CTL_NET;
    163  1.19    atatat 		name[1] = PF_ROUTE;
    164  1.19    atatat 		name[2] = 0;
    165  1.19    atatat 		name[3] = (SCARG(uap, op) & 0xff0000) >> 16;
    166  1.19    atatat 		name[4] = SCARG(uap, op) & 0xff;
    167  1.19    atatat 		name[5] = SCARG(uap, arg);
    168  1.19    atatat 		error = old_sysctl(&name[0], 6, SCARG(uap, where), &size,
    169  1.19    atatat 				   NULL, 0, l);
    170   1.1  christos 		break;
    171   1.1  christos 
    172   1.1  christos 	case KINFO_VNODE:
    173  1.19    atatat 		name[0] = CTL_KERN;
    174  1.19    atatat 		name[1] = KERN_VNODE;
    175  1.19    atatat 		error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
    176  1.19    atatat 				   NULL, 0, l);
    177   1.1  christos 		break;
    178   1.1  christos 
    179   1.1  christos 	case KINFO_PROC:
    180  1.19    atatat 		name[0] = CTL_KERN;
    181  1.19    atatat 		name[1] = KERN_PROC;
    182  1.19    atatat 		name[2] = SCARG(uap, op) & 0xff;
    183  1.19    atatat 		name[3] = SCARG(uap, arg);
    184  1.19    atatat 		error = old_sysctl(&name[0], 4, SCARG(uap, where), &size,
    185  1.19    atatat 				   NULL, 0, l);
    186   1.1  christos 		break;
    187   1.1  christos 
    188   1.1  christos 	case KINFO_FILE:
    189  1.19    atatat 		name[0] = CTL_KERN;
    190  1.19    atatat 		name[1] = KERN_FILE;
    191  1.19    atatat 		error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
    192  1.19    atatat 				   NULL, 0, l);
    193   1.1  christos 		break;
    194   1.1  christos 
    195   1.1  christos 	case KINFO_METER:
    196  1.19    atatat 		name[0] = CTL_VM;
    197  1.19    atatat 		name[1] = VM_METER;
    198  1.19    atatat 		error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
    199  1.19    atatat 				   NULL, 0, l);
    200   1.1  christos 		break;
    201   1.1  christos 
    202   1.1  christos 	case KINFO_LOADAVG:
    203  1.19    atatat 		name[0] = CTL_VM;
    204  1.19    atatat 		name[1] = VM_LOADAVG;
    205  1.19    atatat 		error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
    206  1.19    atatat 				   NULL, 0, l);
    207   1.1  christos 		break;
    208   1.1  christos 
    209   1.1  christos 	case KINFO_CLOCKRATE:
    210  1.19    atatat 		name[0] = CTL_KERN;
    211  1.19    atatat 		name[1] = KERN_CLOCKRATE;
    212  1.19    atatat 		error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
    213  1.19    atatat 				   NULL, 0, l);
    214   1.6  christos 		break;
    215   1.6  christos 
    216   1.6  christos 
    217   1.6  christos 	case KINFO_BSDI_SYSINFO:
    218   1.6  christos 		{
    219   1.6  christos 			size_t len;
    220   1.6  christos 			struct bsdi_si *usi =
    221   1.6  christos 			    (struct bsdi_si *) SCARG(uap, where);
    222   1.6  christos 			struct bsdi_si ksi;
    223  1.34  christos 			struct timeval tv;
    224  1.35  christos 			const char *cpu_model = cpu_getmodel();
    225   1.6  christos 			char *us = (char *) &usi[1];
    226   1.6  christos 
    227   1.6  christos 			if (usi == NULL) {
    228   1.6  christos 				size = sizeof(ksi) +
    229   1.6  christos 				    strlen(ostype) + strlen(cpu_model) +
    230   1.6  christos 				    strlen(osrelease) + strlen(machine) +
    231   1.6  christos 				    strlen(version) + strlen(hostname) + 6;
    232   1.6  christos 				error = 0;
    233   1.6  christos 				break;
    234   1.6  christos 			}
    235   1.6  christos 
    236   1.6  christos #define COPY(fld)							\
    237   1.6  christos 			ksi.fld = us - (u_long) usi;			\
    238   1.6  christos 			if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\
    239   1.6  christos 				return error;				\
    240   1.6  christos 			us += len
    241   1.6  christos 
    242   1.6  christos 			COPY(machine);
    243   1.6  christos 			COPY(cpu_model);
    244  1.28        ad 			ksi.ncpu = ncpu;		/* XXX */
    245   1.6  christos 			ksi.cpuspeed = 40;		/* XXX */
    246   1.6  christos 			ksi.hwflags = 0;		/* XXX */
    247   1.6  christos 			ksi.physmem = ctob(physmem);
    248   1.6  christos 			ksi.usermem = ctob(physmem);	/* XXX */
    249   1.6  christos 			ksi.pagesize = PAGE_SIZE;
    250   1.6  christos 
    251   1.6  christos 			COPY(ostype);
    252   1.6  christos 			COPY(osrelease);
    253   1.6  christos 			ksi.os_revision = NetBSD;	/* XXX */
    254   1.6  christos 			ksi.posix1_version = _POSIX_VERSION;
    255   1.6  christos 			COPY(version);			/* XXX */
    256   1.6  christos 
    257   1.6  christos 			ksi.hz = hz;
    258   1.6  christos 			ksi.profhz = profhz;
    259   1.6  christos 			ksi.ngroups_max = NGROUPS_MAX;
    260   1.6  christos 			ksi.arg_max = ARG_MAX;
    261   1.6  christos 			ksi.open_max = OPEN_MAX;
    262   1.6  christos 			ksi.child_max = CHILD_MAX;
    263   1.6  christos 
    264  1.34  christos 			TIMESPEC_TO_TIMEVAL(&tv, &boottime);
    265  1.34  christos 			timeval_to_timeval50(&tv, &ksi.boottime);
    266   1.6  christos 			COPY(hostname);
    267   1.6  christos 
    268   1.6  christos 			size = (us - (char *) &usi[1]) + sizeof(ksi);
    269   1.6  christos 
    270   1.6  christos 			if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0)
    271   1.6  christos 				return error;
    272   1.6  christos 		}
    273   1.1  christos 		break;
    274   1.1  christos 
    275   1.1  christos 	default:
    276   1.1  christos 		return (EOPNOTSUPP);
    277   1.1  christos 	}
    278   1.1  christos 	if (error)
    279   1.1  christos 		return (error);
    280   1.1  christos 	*retval = size;
    281   1.1  christos 	if (SCARG(uap, size))
    282  1.29  christos 		error = copyout((void *)&size, (void *)SCARG(uap, size),
    283   1.1  christos 		    sizeof(size));
    284   1.1  christos 	return (error);
    285   1.1  christos }
    286   1.1  christos 
    287   1.1  christos 
    288   1.1  christos /* ARGSUSED */
    289   1.1  christos int
    290  1.30       dsl compat_43_sys_sethostid(struct lwp *l, const struct compat_43_sys_sethostid_args *uap, register_t *retval)
    291   1.2   thorpej {
    292  1.32      elad 	long uhostid;
    293  1.32      elad 	int name[2];
    294  1.32      elad 
    295  1.32      elad 	uhostid = SCARG(uap, hostid);
    296  1.32      elad 	name[0] = CTL_KERN;
    297  1.32      elad 	name[1] = KERN_HOSTID;
    298   1.1  christos 
    299  1.32      elad 	return (old_sysctl(&name[0], 2, 0, 0, &uhostid, sizeof(long), l));
    300   1.1  christos }
    301   1.1  christos 
    302   1.1  christos 
    303   1.1  christos /* ARGSUSED */
    304   1.1  christos int
    305  1.30       dsl compat_43_sys_sethostname(struct lwp *l, const struct compat_43_sys_sethostname_args *uap, register_t *retval)
    306   1.1  christos {
    307  1.19    atatat 	int name[2];
    308   1.1  christos 
    309  1.19    atatat 	name[0] = CTL_KERN;
    310  1.19    atatat 	name[1] = KERN_HOSTNAME;
    311  1.19    atatat 	return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, hostname),
    312  1.19    atatat 			   SCARG(uap, len), l));
    313   1.1  christos }
    314