kern_info_43.c revision 1.19
1 /* $NetBSD: kern_info_43.c,v 1.19 2003/12/04 19:38:22 atatat 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: kern_info_43.c,v 1.19 2003/12/04 19:38:22 atatat Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/filedesc.h> 40 #include <sys/kernel.h> 41 #include <sys/vnode.h> 42 #include <sys/proc.h> 43 #include <sys/file.h> 44 #include <sys/socket.h> 45 #include <sys/socketvar.h> 46 #include <sys/stat.h> 47 #include <sys/ioctl.h> 48 #include <sys/fcntl.h> 49 #include <sys/syslog.h> 50 #include <sys/unistd.h> 51 #include <sys/resourcevar.h> 52 53 #include <uvm/uvm_extern.h> 54 #include <sys/sysctl.h> 55 56 #include <sys/mount.h> 57 #include <sys/sa.h> 58 #include <sys/syscallargs.h> 59 60 int 61 compat_43_sys_getdtablesize(struct lwp *l, void *v, register_t *retval) 62 { 63 struct proc *p = l->l_proc; 64 65 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 66 return (0); 67 } 68 69 70 /* ARGSUSED */ 71 int 72 compat_43_sys_gethostid(struct lwp *l, void *v, register_t *retval) 73 { 74 75 *(int32_t *)retval = hostid; 76 return (0); 77 } 78 79 80 /*ARGSUSED*/ 81 int 82 compat_43_sys_gethostname(struct lwp *l, void *v, register_t *retval) 83 { 84 struct compat_43_sys_gethostname_args /* { 85 syscallarg(char *) hostname; 86 syscallarg(u_int) len; 87 } */ *uap = v; 88 int name[2]; 89 size_t sz; 90 91 name[0] = CTL_KERN; 92 name[1] = KERN_HOSTNAME; 93 sz = SCARG(uap, len); 94 return (old_sysctl(&name[0], 2, SCARG(uap, hostname), &sz, 0, 0, l)); 95 } 96 97 #define KINFO_PROC (0<<8) 98 #define KINFO_RT (1<<8) 99 #define KINFO_VNODE (2<<8) 100 #define KINFO_FILE (3<<8) 101 #define KINFO_METER (4<<8) 102 #define KINFO_LOADAVG (5<<8) 103 #define KINFO_CLOCKRATE (6<<8) 104 #define KINFO_BSDI_SYSINFO (101<<8) 105 106 107 /* 108 * The string data is appended to the end of the bsdi_si structure during 109 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 110 * base of the bsdi_si struct. 111 */ 112 struct bsdi_si { 113 char *machine; 114 char *cpu_model; 115 long ncpu; 116 long cpuspeed; 117 long hwflags; 118 u_long physmem; 119 u_long usermem; 120 u_long pagesize; 121 122 char *ostype; 123 char *osrelease; 124 long os_revision; 125 long posix1_version; 126 char *version; 127 128 long hz; 129 long profhz; 130 int ngroups_max; 131 long arg_max; 132 long open_max; 133 long child_max; 134 135 struct timeval boottime; 136 char *hostname; 137 }; 138 139 int 140 compat_43_sys_getkerninfo(struct lwp *l, void *v, register_t *retval) 141 { 142 struct compat_43_sys_getkerninfo_args /* { 143 syscallarg(int) op; 144 syscallarg(char *) where; 145 syscallarg(int *) size; 146 syscallarg(int) arg; 147 } */ *uap = v; 148 int error, name[6]; 149 size_t size; 150 151 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 152 (caddr_t)&size, sizeof(size)))) 153 return (error); 154 155 switch (SCARG(uap, op) & 0xff00) { 156 157 case KINFO_RT: 158 name[0] = CTL_NET; 159 name[1] = PF_ROUTE; 160 name[2] = 0; 161 name[3] = (SCARG(uap, op) & 0xff0000) >> 16; 162 name[4] = SCARG(uap, op) & 0xff; 163 name[5] = SCARG(uap, arg); 164 error = old_sysctl(&name[0], 6, SCARG(uap, where), &size, 165 NULL, 0, l); 166 break; 167 168 case KINFO_VNODE: 169 name[0] = CTL_KERN; 170 name[1] = KERN_VNODE; 171 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 172 NULL, 0, l); 173 break; 174 175 case KINFO_PROC: 176 name[0] = CTL_KERN; 177 name[1] = KERN_PROC; 178 name[2] = SCARG(uap, op) & 0xff; 179 name[3] = SCARG(uap, arg); 180 error = old_sysctl(&name[0], 4, SCARG(uap, where), &size, 181 NULL, 0, l); 182 break; 183 184 case KINFO_FILE: 185 name[0] = CTL_KERN; 186 name[1] = KERN_FILE; 187 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 188 NULL, 0, l); 189 break; 190 191 case KINFO_METER: 192 name[0] = CTL_VM; 193 name[1] = VM_METER; 194 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 195 NULL, 0, l); 196 break; 197 198 case KINFO_LOADAVG: 199 name[0] = CTL_VM; 200 name[1] = VM_LOADAVG; 201 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 202 NULL, 0, l); 203 break; 204 205 case KINFO_CLOCKRATE: 206 name[0] = CTL_KERN; 207 name[1] = KERN_CLOCKRATE; 208 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 209 NULL, 0, l); 210 break; 211 212 213 case KINFO_BSDI_SYSINFO: 214 { 215 size_t len; 216 struct bsdi_si *usi = 217 (struct bsdi_si *) SCARG(uap, where); 218 struct bsdi_si ksi; 219 char *us = (char *) &usi[1]; 220 221 if (usi == NULL) { 222 size = sizeof(ksi) + 223 strlen(ostype) + strlen(cpu_model) + 224 strlen(osrelease) + strlen(machine) + 225 strlen(version) + strlen(hostname) + 6; 226 error = 0; 227 break; 228 } 229 230 #define COPY(fld) \ 231 ksi.fld = us - (u_long) usi; \ 232 if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\ 233 return error; \ 234 us += len 235 236 COPY(machine); 237 COPY(cpu_model); 238 ksi.ncpu = 1; /* XXX */ 239 ksi.cpuspeed = 40; /* XXX */ 240 ksi.hwflags = 0; /* XXX */ 241 ksi.physmem = ctob(physmem); 242 ksi.usermem = ctob(physmem); /* XXX */ 243 ksi.pagesize = PAGE_SIZE; 244 245 COPY(ostype); 246 COPY(osrelease); 247 ksi.os_revision = NetBSD; /* XXX */ 248 ksi.posix1_version = _POSIX_VERSION; 249 COPY(version); /* XXX */ 250 251 ksi.hz = hz; 252 ksi.profhz = profhz; 253 ksi.ngroups_max = NGROUPS_MAX; 254 ksi.arg_max = ARG_MAX; 255 ksi.open_max = OPEN_MAX; 256 ksi.child_max = CHILD_MAX; 257 258 ksi.boottime = boottime; 259 COPY(hostname); 260 261 size = (us - (char *) &usi[1]) + sizeof(ksi); 262 263 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 264 return error; 265 } 266 break; 267 268 default: 269 return (EOPNOTSUPP); 270 } 271 if (error) 272 return (error); 273 *retval = size; 274 if (SCARG(uap, size)) 275 error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), 276 sizeof(size)); 277 return (error); 278 } 279 280 281 /* ARGSUSED */ 282 int 283 compat_43_sys_sethostid(struct lwp *l, void *v, register_t *retval) 284 { 285 struct compat_43_sys_sethostid_args /* { 286 syscallarg(int32_t) hostid; 287 } */ *uap = v; 288 struct proc *p = l->l_proc; 289 int error; 290 291 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 292 return (error); 293 hostid = SCARG(uap, hostid); 294 return (0); 295 } 296 297 298 /* ARGSUSED */ 299 int 300 compat_43_sys_sethostname(struct lwp *l, void *v, register_t *retval) 301 { 302 struct compat_43_sys_sethostname_args *uap = v; 303 int name[2]; 304 305 name[0] = CTL_KERN; 306 name[1] = KERN_HOSTNAME; 307 return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, hostname), 308 SCARG(uap, len), l)); 309 } 310
Indexes created Tue Sep 23 23:09:58 GMT 2025