kern_info_43.c revision 1.12.2.3
1 /* $NetBSD: kern_info_43.c,v 1.12.2.3 2002/05/29 21:32:13 nathanw 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/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: kern_info_43.c,v 1.12.2.3 2002/05/29 21:32:13 nathanw Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/filedesc.h> 44 #include <sys/kernel.h> 45 #include <sys/vnode.h> 46 #include <sys/lwp.h> 47 #include <sys/proc.h> 48 #include <sys/file.h> 49 #include <sys/socket.h> 50 #include <sys/socketvar.h> 51 #include <sys/stat.h> 52 #include <sys/ioctl.h> 53 #include <sys/fcntl.h> 54 #include <sys/malloc.h> 55 #include <sys/syslog.h> 56 #include <sys/unistd.h> 57 #include <sys/resourcevar.h> 58 59 #include <uvm/uvm_extern.h> 60 #include <sys/sysctl.h> 61 62 #include <sys/mount.h> 63 #include <sys/sa.h> 64 #include <sys/syscallargs.h> 65 66 int 67 compat_43_sys_getdtablesize(struct lwp *l, void *v, register_t *retval) 68 { 69 struct proc *p = l->l_proc; 70 71 *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); 72 return (0); 73 } 74 75 76 /* ARGSUSED */ 77 int 78 compat_43_sys_gethostid(struct lwp *l, void *v, 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(struct lwp *l, void *v, register_t *retval) 89 { 90 struct compat_43_sys_gethostname_args /* { 91 syscallarg(char *) hostname; 92 syscallarg(u_int) len; 93 } */ *uap = v; 94 struct proc *p = l->l_proc; 95 int name; 96 size_t sz; 97 98 name = KERN_HOSTNAME; 99 sz = SCARG(uap, len); 100 return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, p)); 101 } 102 103 #define KINFO_PROC (0<<8) 104 #define KINFO_RT (1<<8) 105 #define KINFO_VNODE (2<<8) 106 #define KINFO_FILE (3<<8) 107 #define KINFO_METER (4<<8) 108 #define KINFO_LOADAVG (5<<8) 109 #define KINFO_CLOCKRATE (6<<8) 110 #define KINFO_BSDI_SYSINFO (101<<8) 111 112 113 /* 114 * The string data is appended to the end of the bsdi_si structure during 115 * copyout. The "char *" offsets in the bsdi_si struct are relative to the 116 * base of the bsdi_si struct. 117 */ 118 struct bsdi_si { 119 char *machine; 120 char *cpu_model; 121 long ncpu; 122 long cpuspeed; 123 long hwflags; 124 u_long physmem; 125 u_long usermem; 126 u_long pagesize; 127 128 char *ostype; 129 char *osrelease; 130 long os_revision; 131 long posix1_version; 132 char *version; 133 134 long hz; 135 long profhz; 136 int ngroups_max; 137 long arg_max; 138 long open_max; 139 long child_max; 140 141 struct timeval boottime; 142 char *hostname; 143 }; 144 145 int 146 compat_43_sys_getkerninfo(struct lwp *l, void *v, register_t *retval) 147 { 148 struct compat_43_sys_getkerninfo_args /* { 149 syscallarg(int) op; 150 syscallarg(char *) where; 151 syscallarg(int *) size; 152 syscallarg(int) arg; 153 } */ *uap = v; 154 struct proc *p = l->l_proc; 155 int error, name[5]; 156 size_t size; 157 158 if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), 159 (caddr_t)&size, sizeof(size)))) 160 return (error); 161 162 switch (SCARG(uap, op) & 0xff00) { 163 164 case KINFO_RT: 165 name[0] = PF_ROUTE; 166 name[1] = 0; 167 name[2] = (SCARG(uap, op) & 0xff0000) >> 16; 168 name[3] = SCARG(uap, op) & 0xff; 169 name[4] = SCARG(uap, arg); 170 error = 171 net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); 172 break; 173 174 case KINFO_VNODE: 175 name[0] = KERN_VNODE; 176 error = 177 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 178 break; 179 180 case KINFO_PROC: 181 name[0] = KERN_PROC; 182 name[1] = SCARG(uap, op) & 0xff; 183 name[2] = SCARG(uap, arg); 184 error = 185 kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); 186 break; 187 188 case KINFO_FILE: 189 name[0] = KERN_FILE; 190 error = 191 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 192 break; 193 194 case KINFO_METER: 195 name[0] = VM_METER; 196 error = 197 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 198 break; 199 200 case KINFO_LOADAVG: 201 name[0] = VM_LOADAVG; 202 error = 203 uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 204 break; 205 206 case KINFO_CLOCKRATE: 207 name[0] = KERN_CLOCKRATE; 208 error = 209 kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); 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 struct proc *p = l->l_proc; 304 int name; 305 int error; 306 307 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 308 return (error); 309 name = KERN_HOSTNAME; 310 return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), 311 SCARG(uap, len), p)); 312 } 313
Indexes created Mon Oct 13 21:09:55 GMT 2025