kern_info_43.c revision 1.34
1 /* $NetBSD: kern_info_43.c,v 1.34 2009/01/11 02:45:46 christos 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 1.34 2009/01/11 02:45:46 christos 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 #include <sys/kauth.h> 53 54 #include <uvm/uvm_extern.h> 55 #include <sys/sysctl.h> 56 57 #include <sys/mount.h> 58 #include <sys/syscallargs.h> 59 #include <compat/sys/time.h> 60 61 int 62 compat_43_sys_getdtablesize(struct lwp *l, const void *v, register_t *retval) 63 { 64 struct proc *p = l->l_proc; 65 66 mutex_enter(p->p_lock); 67 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 68 mutex_exit(p->p_lock); 69 return (0); 70 } 71 72 73 /* ARGSUSED */ 74 int 75 compat_43_sys_gethostid(struct lwp *l, const void *v, register_t *retval) 76 { 77 78 *(int32_t *)retval = hostid; 79 return (0); 80 } 81 82 83 /*ARGSUSED*/ 84 int 85 compat_43_sys_gethostname(struct lwp *l, const struct compat_43_sys_gethostname_args *uap, register_t *retval) 86 { 87 /* { 88 syscallarg(char *) hostname; 89 syscallarg(u_int) len; 90 } */ 91 int name[2]; 92 size_t sz; 93 94 name[0] = CTL_KERN; 95 name[1] = KERN_HOSTNAME; 96 sz = SCARG(uap, len); 97 return (old_sysctl(&name[0], 2, SCARG(uap, hostname), &sz, 0, 0, l)); 98 } 99 100 #define KINFO_PROC (0<<8) 101 #define KINFO_RT (1<<8) 102 #define KINFO_VNODE (2<<8) 103 #define KINFO_FILE (3<<8) 104 #define KINFO_METER (4<<8) 105 #define KINFO_LOADAVG (5<<8) 106 #define KINFO_CLOCKRATE (6<<8) 107 #define KINFO_BSDI_SYSINFO (101<<8) 108 109 110 /* 111 * The string data is appended to the end of the bsdi_si structure during 112 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 113 * base of the bsdi_si struct. 114 */ 115 struct bsdi_si { 116 char *machine; 117 char *cpu_model; 118 long ncpu; 119 long cpuspeed; 120 long hwflags; 121 u_long physmem; 122 u_long usermem; 123 u_long pagesize; 124 125 char *ostype; 126 char *osrelease; 127 long os_revision; 128 long posix1_version; 129 char *version; 130 131 long hz; 132 long profhz; 133 int ngroups_max; 134 long arg_max; 135 long open_max; 136 long child_max; 137 138 struct timeval50 boottime; 139 char *hostname; 140 }; 141 142 int 143 compat_43_sys_getkerninfo(struct lwp *l, const struct compat_43_sys_getkerninfo_args *uap, register_t *retval) 144 { 145 /* { 146 syscallarg(int) op; 147 syscallarg(char *) where; 148 syscallarg(int *) size; 149 syscallarg(int) arg; 150 } */ 151 int error, name[6]; 152 size_t size; 153 154 if (SCARG(uap, size) && (error = copyin((void *)SCARG(uap, size), 155 (void *)&size, sizeof(size)))) 156 return (error); 157 158 switch (SCARG(uap, op) & 0xff00) { 159 160 case KINFO_RT: 161 name[0] = CTL_NET; 162 name[1] = PF_ROUTE; 163 name[2] = 0; 164 name[3] = (SCARG(uap, op) & 0xff0000) >> 16; 165 name[4] = SCARG(uap, op) & 0xff; 166 name[5] = SCARG(uap, arg); 167 error = old_sysctl(&name[0], 6, SCARG(uap, where), &size, 168 NULL, 0, l); 169 break; 170 171 case KINFO_VNODE: 172 name[0] = CTL_KERN; 173 name[1] = KERN_VNODE; 174 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 175 NULL, 0, l); 176 break; 177 178 case KINFO_PROC: 179 name[0] = CTL_KERN; 180 name[1] = KERN_PROC; 181 name[2] = SCARG(uap, op) & 0xff; 182 name[3] = SCARG(uap, arg); 183 error = old_sysctl(&name[0], 4, SCARG(uap, where), &size, 184 NULL, 0, l); 185 break; 186 187 case KINFO_FILE: 188 name[0] = CTL_KERN; 189 name[1] = KERN_FILE; 190 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 191 NULL, 0, l); 192 break; 193 194 case KINFO_METER: 195 name[0] = CTL_VM; 196 name[1] = VM_METER; 197 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 198 NULL, 0, l); 199 break; 200 201 case KINFO_LOADAVG: 202 name[0] = CTL_VM; 203 name[1] = VM_LOADAVG; 204 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 205 NULL, 0, l); 206 break; 207 208 case KINFO_CLOCKRATE: 209 name[0] = CTL_KERN; 210 name[1] = KERN_CLOCKRATE; 211 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 212 NULL, 0, l); 213 break; 214 215 216 case KINFO_BSDI_SYSINFO: 217 { 218 size_t len; 219 struct bsdi_si *usi = 220 (struct bsdi_si *) SCARG(uap, where); 221 struct bsdi_si ksi; 222 struct timeval tv; 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 = ncpu; /* 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 TIMESPEC_TO_TIMEVAL(&tv, &boottime); 263 timeval_to_timeval50(&tv, &ksi.boottime); 264 COPY(hostname); 265 266 size = (us - (char *) &usi[1]) + sizeof(ksi); 267 268 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 269 return error; 270 } 271 break; 272 273 default: 274 return (EOPNOTSUPP); 275 } 276 if (error) 277 return (error); 278 *retval = size; 279 if (SCARG(uap, size)) 280 error = copyout((void *)&size, (void *)SCARG(uap, size), 281 sizeof(size)); 282 return (error); 283 } 284 285 286 /* ARGSUSED */ 287 int 288 compat_43_sys_sethostid(struct lwp *l, const struct compat_43_sys_sethostid_args *uap, register_t *retval) 289 { 290 long uhostid; 291 int name[2]; 292 293 uhostid = SCARG(uap, hostid); 294 name[0] = CTL_KERN; 295 name[1] = KERN_HOSTID; 296 297 return (old_sysctl(&name[0], 2, 0, 0, &uhostid, sizeof(long), l)); 298 } 299 300 301 /* ARGSUSED */ 302 int 303 compat_43_sys_sethostname(struct lwp *l, const struct compat_43_sys_sethostname_args *uap, register_t *retval) 304 { 305 int name[2]; 306 307 name[0] = CTL_KERN; 308 name[1] = KERN_HOSTNAME; 309 return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, hostname), 310 SCARG(uap, len), l)); 311 } 312
Indexes created Tue Sep 23 21:09:50 GMT 2025