1 /* $NetBSD: kern_info_43.c,v 1.12 2000/06/28 15:39:25 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/filedesc.h> 41 #include <sys/kernel.h> 42 #include <sys/vnode.h> 43 #include <sys/proc.h> 44 #include <sys/file.h> 45 #include <sys/socket.h> 46 #include <sys/socketvar.h> 47 #include <sys/stat.h> 48 #include <sys/ioctl.h> 49 #include <sys/fcntl.h> 50 #include <sys/malloc.h> 51 #include <sys/syslog.h> 52 #include <sys/unistd.h> 53 #include <sys/resourcevar.h> 54 55 #include <uvm/uvm_extern.h> 56 #include <sys/sysctl.h> 57 58 #include <sys/mount.h> 59 #include <sys/syscallargs.h> 60 61 int 62 compat_43_sys_getdtablesize(p, v, retval) 63 struct proc *p; 64 void *v; 65 register_t *retval; 66 { 67 68 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 69 return (0); 70 } 71 72 73 /* ARGSUSED */ 74 int 75 compat_43_sys_gethostid(p, v, retval) 76 struct proc *p; 77 void *v; 78 register_t *retval; 79 { 80 81 *(int32_t *)retval = hostid; 82 return (0); 83 } 84 85 86 /*ARGSUSED*/ 87 int 88 compat_43_sys_gethostname(p, v, retval) 89 struct proc *p; 90 void *v; 91 register_t *retval; 92 { 93 struct compat_43_sys_gethostname_args /* { 94 syscallarg(char *) hostname; 95 syscallarg(u_int) len; 96 } */ *uap = v; 97 int name; 98 size_t sz; 99 100 name = KERN_HOSTNAME; 101 sz = SCARG(uap, len); 102 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, p)); 103 } 104 105 #define KINFO_PROC (0<<8) 106 #define KINFO_RT (1<<8) 107 #define KINFO_VNODE (2<<8) 108 #define KINFO_FILE (3<<8) 109 #define KINFO_METER (4<<8) 110 #define KINFO_LOADAVG (5<<8) 111 #define KINFO_CLOCKRATE (6<<8) 112 #define KINFO_BSDI_SYSINFO (101<<8) 113 114 115 /* 116 * The string data is appended to the end of the bsdi_si structure during 117 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 118 * base of the bsdi_si struct. 119 */ 120 struct bsdi_si { 121 char *machine; 122 char *cpu_model; 123 long ncpu; 124 long cpuspeed; 125 long hwflags; 126 u_long physmem; 127 u_long usermem; 128 u_long pagesize; 129 130 char *ostype; 131 char *osrelease; 132 long os_revision; 133 long posix1_version; 134 char *version; 135 136 long hz; 137 long profhz; 138 int ngroups_max; 139 long arg_max; 140 long open_max; 141 long child_max; 142 143 struct timeval boottime; 144 char *hostname; 145 }; 146 147 int 148 compat_43_sys_getkerninfo(p, v, retval) 149 struct proc *p; 150 void *v; 151 register_t *retval; 152 { 153 struct compat_43_sys_getkerninfo_args /* { 154 syscallarg(int) op; 155 syscallarg(char *) where; 156 syscallarg(int *) size; 157 syscallarg(int) arg; 158 } */ *uap = v; 159 int error, name[5]; 160 size_t size; 161 162 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 163 (caddr_t)&size, sizeof(size)))) 164 return (error); 165 166 switch (SCARG(uap, op) & 0xff00) { 167 168 case KINFO_RT: 169 name[0] = PF_ROUTE; 170 name[1] = 0; 171 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 172 name[3] = SCARG(uap, op) & 0xff; 173 name[4] = SCARG(uap, arg); 174 error = 175 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); 176 break; 177 178 case KINFO_VNODE: 179 name[0] = KERN_VNODE; 180 error = 181 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 182 break; 183 184 case KINFO_PROC: 185 name[0] = KERN_PROC; 186 name[1] = SCARG(uap, op) & 0xff; 187 name[2] = SCARG(uap, arg); 188 error = 189 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); 190 break; 191 192 case KINFO_FILE: 193 name[0] = KERN_FILE; 194 error = 195 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 196 break; 197 198 case KINFO_METER: 199 name[0] = VM_METER; 200 error = 201 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 202 break; 203 204 case KINFO_LOADAVG: 205 name[0] = VM_LOADAVG; 206 error = 207 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 208 break; 209 210 case KINFO_CLOCKRATE: 211 name[0] = KERN_CLOCKRATE; 212 error = 213 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 214 break; 215 216 217 case KINFO_BSDI_SYSINFO: 218 { 219 size_t len; 220 struct bsdi_si *usi = 221 (struct bsdi_si *) SCARG(uap, where); 222 struct bsdi_si ksi; 223 char *us = (char *) &usi[1]; 224 225 if (usi == NULL) { 226 size = sizeof(ksi) + 227 strlen(ostype) + strlen(cpu_model) + 228 strlen(osrelease) + strlen(machine) + 229 strlen(version) + strlen(hostname) + 6; 230 error = 0; 231 break; 232 } 233 234 #define COPY(fld) \ 235 ksi.fld = us - (u_long) usi; \ 236 if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\ 237 return error; \ 238 us += len 239 240 COPY(machine); 241 COPY(cpu_model); 242 ksi.ncpu = 1; /* XXX */ 243 ksi.cpuspeed = 40; /* XXX */ 244 ksi.hwflags = 0; /* XXX */ 245 ksi.physmem = ctob(physmem); 246 ksi.usermem = ctob(physmem); /* XXX */ 247 ksi.pagesize = PAGE_SIZE; 248 249 COPY(ostype); 250 COPY(osrelease); 251 ksi.os_revision = NetBSD; /* XXX */ 252 ksi.posix1_version = _POSIX_VERSION; 253 COPY(version); /* XXX */ 254 255 ksi.hz = hz; 256 ksi.profhz = profhz; 257 ksi.ngroups_max = NGROUPS_MAX; 258 ksi.arg_max = ARG_MAX; 259 ksi.open_max = OPEN_MAX; 260 ksi.child_max = CHILD_MAX; 261 262 ksi.boottime = boottime; 263 COPY(hostname); 264 265 size = (us - (char *) &usi[1]) + sizeof(ksi); 266 267 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 268 return error; 269 } 270 break; 271 272 default: 273 return (EOPNOTSUPP); 274 } 275 if (error) 276 return (error); 277 *retval = size; 278 if (SCARG(uap, size)) 279 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 280 sizeof(size)); 281 return (error); 282 } 283 284 285 /* ARGSUSED */ 286 int 287 compat_43_sys_sethostid(p, v, retval) 288 struct proc *p; 289 void *v; 290 register_t *retval; 291 { 292 struct compat_43_sys_sethostid_args /* { 293 syscallarg(int32_t) hostid; 294 } */ *uap = v; 295 int error; 296 297 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 298 return (error); 299 hostid = SCARG(uap, hostid); 300 return (0); 301 } 302 303 304 /* ARGSUSED */ 305 int 306 compat_43_sys_sethostname(p, v, retval) 307 struct proc *p; 308 void *v; 309 register_t *retval; 310 { 311 struct compat_43_sys_sethostname_args *uap = v; 312 int name; 313 int error; 314 315 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 316 return (error); 317 name = KERN_HOSTNAME; 318 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 319 SCARG(uap, len), p)); 320 } 321