kern_info_43.c revision 1.34.24.1
1 /* $NetBSD: kern_info_43.c,v 1.34.24.1 2014/08/20 00:03:31 tls 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 1.34.24.1 2014/08/20 00:03:31 tls 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 #include <sys/cpu.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 #include <compat/sys/time.h> 61 62 int 63 compat_43_sys_getdtablesize(struct lwp *l, const void *v, register_t *retval) 64 { 65 struct proc *p = l->l_proc; 66 67 mutex_enter(p->p_lock); 68 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 69 mutex_exit(p->p_lock); 70 return (0); 71 } 72 73 74 /* ARGSUSED */ 75 int 76 compat_43_sys_gethostid(struct lwp *l, const void *v, register_t *retval) 77 { 78 79 *(int32_t *)retval = hostid; 80 return (0); 81 } 82 83 84 /*ARGSUSED*/ 85 int 86 compat_43_sys_gethostname(struct lwp *l, const struct compat_43_sys_gethostname_args *uap, register_t *retval) 87 { 88 /* { 89 syscallarg(char *) hostname; 90 syscallarg(u_int) len; 91 } */ 92 int name[2]; 93 size_t sz; 94 95 name[0] = CTL_KERN; 96 name[1] = KERN_HOSTNAME; 97 sz = SCARG(uap, len); 98 return (old_sysctl(&name[0], 2, SCARG(uap, hostname), &sz, 0, 0, l)); 99 } 100 101 #define KINFO_PROC (0<<8) 102 #define KINFO_RT (1<<8) 103 #define KINFO_VNODE (2<<8) 104 #define KINFO_FILE (3<<8) 105 #define KINFO_METER (4<<8) 106 #define KINFO_LOADAVG (5<<8) 107 #define KINFO_CLOCKRATE (6<<8) 108 #define KINFO_BSDI_SYSINFO (101<<8) 109 110 111 /* 112 * The string data is appended to the end of the bsdi_si structure during 113 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 114 * base of the bsdi_si struct. 115 */ 116 struct bsdi_si { 117 char *machine; 118 char *cpu_model; 119 long ncpu; 120 long cpuspeed; 121 long hwflags; 122 u_long physmem; 123 u_long usermem; 124 u_long pagesize; 125 126 char *ostype; 127 char *osrelease; 128 long os_revision; 129 long posix1_version; 130 char *version; 131 132 long hz; 133 long profhz; 134 int ngroups_max; 135 long arg_max; 136 long open_max; 137 long child_max; 138 139 struct timeval50 boottime; 140 char *hostname; 141 }; 142 143 int 144 compat_43_sys_getkerninfo(struct lwp *l, const struct compat_43_sys_getkerninfo_args *uap, register_t *retval) 145 { 146 /* { 147 syscallarg(int) op; 148 syscallarg(char *) where; 149 syscallarg(int *) size; 150 syscallarg(int) arg; 151 } */ 152 int error, name[6]; 153 size_t size; 154 155 if (SCARG(uap, size) && (error = copyin((void *)SCARG(uap, size), 156 (void *)&size, sizeof(size)))) 157 return (error); 158 159 switch (SCARG(uap, op) & 0xff00) { 160 161 case KINFO_RT: 162 name[0] = CTL_NET; 163 name[1] = PF_ROUTE; 164 name[2] = 0; 165 name[3] = (SCARG(uap, op) & 0xff0000) >> 16; 166 name[4] = SCARG(uap, op) & 0xff; 167 name[5] = SCARG(uap, arg); 168 error = old_sysctl(&name[0], 6, SCARG(uap, where), &size, 169 NULL, 0, l); 170 break; 171 172 case KINFO_VNODE: 173 name[0] = CTL_KERN; 174 name[1] = KERN_VNODE; 175 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 176 NULL, 0, l); 177 break; 178 179 case KINFO_PROC: 180 name[0] = CTL_KERN; 181 name[1] = KERN_PROC; 182 name[2] = SCARG(uap, op) & 0xff; 183 name[3] = SCARG(uap, arg); 184 error = old_sysctl(&name[0], 4, SCARG(uap, where), &size, 185 NULL, 0, l); 186 break; 187 188 case KINFO_FILE: 189 name[0] = CTL_KERN; 190 name[1] = KERN_FILE; 191 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 192 NULL, 0, l); 193 break; 194 195 case KINFO_METER: 196 name[0] = CTL_VM; 197 name[1] = VM_METER; 198 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 199 NULL, 0, l); 200 break; 201 202 case KINFO_LOADAVG: 203 name[0] = CTL_VM; 204 name[1] = VM_LOADAVG; 205 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 206 NULL, 0, l); 207 break; 208 209 case KINFO_CLOCKRATE: 210 name[0] = CTL_KERN; 211 name[1] = KERN_CLOCKRATE; 212 error = old_sysctl(&name[0], 2, SCARG(uap, where), &size, 213 NULL, 0, l); 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 struct timeval tv; 224 const char *cpu_model = cpu_getmodel(); 225 char *us = (char *) &usi[1]; 226 227 if (usi == NULL) { 228 size = sizeof(ksi) + 229 strlen(ostype) + strlen(cpu_model) + 230 strlen(osrelease) + strlen(machine) + 231 strlen(version) + strlen(hostname) + 6; 232 error = 0; 233 break; 234 } 235 236 #define COPY(fld) \ 237 ksi.fld = us - (u_long) usi; \ 238 if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\ 239 return error; \ 240 us += len 241 242 COPY(machine); 243 COPY(cpu_model); 244 ksi.ncpu = ncpu; /* XXX */ 245 ksi.cpuspeed = 40; /* XXX */ 246 ksi.hwflags = 0; /* XXX */ 247 ksi.physmem = ctob(physmem); 248 ksi.usermem = ctob(physmem); /* XXX */ 249 ksi.pagesize = PAGE_SIZE; 250 251 COPY(ostype); 252 COPY(osrelease); 253 ksi.os_revision = NetBSD; /* XXX */ 254 ksi.posix1_version = _POSIX_VERSION; 255 COPY(version); /* XXX */ 256 257 ksi.hz = hz; 258 ksi.profhz = profhz; 259 ksi.ngroups_max = NGROUPS_MAX; 260 ksi.arg_max = ARG_MAX; 261 ksi.open_max = OPEN_MAX; 262 ksi.child_max = CHILD_MAX; 263 264 TIMESPEC_TO_TIMEVAL(&tv, &boottime); 265 timeval_to_timeval50(&tv, &ksi.boottime); 266 COPY(hostname); 267 268 size = (us - (char *) &usi[1]) + sizeof(ksi); 269 270 if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0) 271 return error; 272 } 273 break; 274 275 default: 276 return (EOPNOTSUPP); 277 } 278 if (error) 279 return (error); 280 *retval = size; 281 if (SCARG(uap, size)) 282 error = copyout((void *)&size, (void *)SCARG(uap, size), 283 sizeof(size)); 284 return (error); 285 } 286 287 288 /* ARGSUSED */ 289 int 290 compat_43_sys_sethostid(struct lwp *l, const struct compat_43_sys_sethostid_args *uap, register_t *retval) 291 { 292 long uhostid; 293 int name[2]; 294 295 uhostid = SCARG(uap, hostid); 296 name[0] = CTL_KERN; 297 name[1] = KERN_HOSTID; 298 299 return (old_sysctl(&name[0], 2, 0, 0, &uhostid, sizeof(long), l)); 300 } 301 302 303 /* ARGSUSED */ 304 int 305 compat_43_sys_sethostname(struct lwp *l, const struct compat_43_sys_sethostname_args *uap, register_t *retval) 306 { 307 int name[2]; 308 309 name[0] = CTL_KERN; 310 name[1] = KERN_HOSTNAME; 311 return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, hostname), 312 SCARG(uap, len), l)); 313 } 314
Indexes created Mon Oct 13 08:09:50 GMT 2025