init_sysctl.c revision 1.25
1 /* $NetBSD: init_sysctl.c,v 1.25 2004/04/08 03:35:10 atatat Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Brown. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.25 2004/04/08 03:35:10 atatat Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "pty.h" 46 #include "rnd.h" 47 48 #include <sys/types.h> 49 #include <sys/param.h> 50 #include <sys/sysctl.h> 51 #include <sys/errno.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/unistd.h> 55 #include <sys/disklabel.h> 56 #include <sys/rnd.h> 57 #include <sys/vnode.h> 58 #include <sys/mount.h> 59 #include <sys/namei.h> 60 #include <sys/msgbuf.h> 61 #include <dev/cons.h> 62 #include <sys/socketvar.h> 63 #include <sys/file.h> 64 #include <sys/tty.h> 65 #include <sys/malloc.h> 66 #include <sys/resource.h> 67 #include <sys/resourcevar.h> 68 #include <sys/exec.h> 69 #include <sys/conf.h> 70 #include <sys/device.h> 71 72 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 73 #include <sys/ipc.h> 74 #endif 75 #ifdef SYSVMSG 76 #include <sys/msg.h> 77 #endif 78 #ifdef SYSVSEM 79 #include <sys/sem.h> 80 #endif 81 #ifdef SYSVSHM 82 #include <sys/shm.h> 83 #endif 84 85 #include <machine/cpu.h> 86 87 /* 88 * try over estimating by 5 procs/lwps 89 */ 90 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 91 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 92 93 #ifndef MULTIPROCESSOR 94 #define sysctl_ncpus() (1) 95 #else /* MULTIPROCESSOR */ 96 #ifndef CPU_INFO_FOREACH 97 #define CPU_INFO_ITERATOR int 98 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 99 #endif 100 static int 101 sysctl_ncpus(void) 102 { 103 struct cpu_info *ci; 104 CPU_INFO_ITERATOR cii; 105 106 int ncpus = 0; 107 for (CPU_INFO_FOREACH(cii, ci)) 108 ncpus++; 109 return (ncpus); 110 } 111 #endif /* MULTIPROCESSOR */ 112 113 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 114 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 115 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 116 static int sysctl_kern_securelevel(SYSCTLFN_PROTO); 117 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 118 static int sysctl_setlen(SYSCTLFN_PROTO); 119 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 120 static int sysctl_kern_file(SYSCTLFN_PROTO); 121 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 122 static int sysctl_msgbuf(SYSCTLFN_PROTO); 123 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 124 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 125 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 126 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 127 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 128 #if NPTY > 0 129 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 130 #endif /* NPTY > 0 */ 131 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 132 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 133 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 134 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 135 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 136 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 137 static int sysctl_doeproc(SYSCTLFN_PROTO); 138 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 139 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 140 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 141 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 142 143 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 144 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 145 146 /* 147 * ******************************************************************** 148 * section 1: setup routines 149 * ******************************************************************** 150 * these functions are stuffed into a link set for sysctl setup 151 * functions. they're never called or referenced from anywhere else. 152 * ******************************************************************** 153 */ 154 155 /* 156 * sets up the base nodes... 157 */ 158 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 159 { 160 161 sysctl_createv(clog, 0, NULL, NULL, 162 CTLFLAG_PERMANENT, 163 CTLTYPE_NODE, "kern", NULL, 164 NULL, 0, NULL, 0, 165 CTL_KERN, CTL_EOL); 166 sysctl_createv(clog, 0, NULL, NULL, 167 CTLFLAG_PERMANENT, 168 CTLTYPE_NODE, "vm", NULL, 169 NULL, 0, NULL, 0, 170 CTL_VM, CTL_EOL); 171 sysctl_createv(clog, 0, NULL, NULL, 172 CTLFLAG_PERMANENT, 173 CTLTYPE_NODE, "vfs", NULL, 174 NULL, 0, NULL, 0, 175 CTL_VFS, CTL_EOL); 176 sysctl_createv(clog, 0, NULL, NULL, 177 CTLFLAG_PERMANENT, 178 CTLTYPE_NODE, "net", NULL, 179 NULL, 0, NULL, 0, 180 CTL_NET, CTL_EOL); 181 sysctl_createv(clog, 0, NULL, NULL, 182 CTLFLAG_PERMANENT, 183 CTLTYPE_NODE, "debug", NULL, 184 NULL, 0, NULL, 0, 185 CTL_DEBUG, CTL_EOL); 186 sysctl_createv(clog, 0, NULL, NULL, 187 CTLFLAG_PERMANENT, 188 CTLTYPE_NODE, "hw", NULL, 189 NULL, 0, NULL, 0, 190 CTL_HW, CTL_EOL); 191 sysctl_createv(clog, 0, NULL, NULL, 192 CTLFLAG_PERMANENT, 193 CTLTYPE_NODE, "machdep", NULL, 194 NULL, 0, NULL, 0, 195 CTL_MACHDEP, CTL_EOL); 196 /* 197 * this node is inserted so that the sysctl nodes in libc can 198 * operate. 199 */ 200 sysctl_createv(clog, 0, NULL, NULL, 201 CTLFLAG_PERMANENT, 202 CTLTYPE_NODE, "user", NULL, 203 NULL, 0, NULL, 0, 204 CTL_USER, CTL_EOL); 205 sysctl_createv(clog, 0, NULL, NULL, 206 CTLFLAG_PERMANENT, 207 CTLTYPE_NODE, "ddb", NULL, 208 NULL, 0, NULL, 0, 209 CTL_DDB, CTL_EOL); 210 sysctl_createv(clog, 0, NULL, NULL, 211 CTLFLAG_PERMANENT, 212 CTLTYPE_NODE, "proc", NULL, 213 NULL, 0, NULL, 0, 214 CTL_PROC, CTL_EOL); 215 sysctl_createv(clog, 0, NULL, NULL, 216 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 217 CTLTYPE_NODE, "vendor", NULL, 218 NULL, 0, NULL, 0, 219 CTL_VENDOR, CTL_EOL); 220 sysctl_createv(clog, 0, NULL, NULL, 221 CTLFLAG_PERMANENT, 222 CTLTYPE_NODE, "emul", NULL, 223 NULL, 0, NULL, 0, 224 CTL_EMUL, CTL_EOL); 225 } 226 227 /* 228 * this setup routine is a replacement for kern_sysctl() 229 */ 230 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 231 { 232 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 233 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 234 extern int dumponpanic; /* defined in kern/subr_prf.c */ 235 236 sysctl_createv(clog, 0, NULL, NULL, 237 CTLFLAG_PERMANENT, 238 CTLTYPE_NODE, "kern", NULL, 239 NULL, 0, NULL, 0, 240 CTL_KERN, CTL_EOL); 241 242 sysctl_createv(clog, 0, NULL, NULL, 243 CTLFLAG_PERMANENT, 244 CTLTYPE_STRING, "ostype", NULL, 245 NULL, 0, &ostype, 0, 246 CTL_KERN, KERN_OSTYPE, CTL_EOL); 247 sysctl_createv(clog, 0, NULL, NULL, 248 CTLFLAG_PERMANENT, 249 CTLTYPE_STRING, "osrelease", NULL, 250 NULL, 0, &osrelease, 0, 251 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 252 sysctl_createv(clog, 0, NULL, NULL, 253 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 254 CTLTYPE_INT, "osrevision", NULL, 255 NULL, __NetBSD_Version__, NULL, 0, 256 CTL_KERN, KERN_OSREV, CTL_EOL); 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT, 259 CTLTYPE_STRING, "version", NULL, 260 NULL, 0, &version, 0, 261 CTL_KERN, KERN_VERSION, CTL_EOL); 262 sysctl_createv(clog, 0, NULL, NULL, 263 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 264 CTLTYPE_INT, "maxvnodes", NULL, 265 sysctl_kern_maxvnodes, 0, NULL, 0, 266 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 267 sysctl_createv(clog, 0, NULL, NULL, 268 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 269 CTLTYPE_INT, "maxproc", NULL, 270 sysctl_kern_maxproc, 0, NULL, 0, 271 CTL_KERN, KERN_MAXPROC, CTL_EOL); 272 sysctl_createv(clog, 0, NULL, NULL, 273 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 274 CTLTYPE_INT, "maxfiles", NULL, 275 NULL, 0, &maxfiles, 0, 276 CTL_KERN, KERN_MAXFILES, CTL_EOL); 277 sysctl_createv(clog, 0, NULL, NULL, 278 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 279 CTLTYPE_INT, "argmax", NULL, 280 NULL, ARG_MAX, NULL, 0, 281 CTL_KERN, KERN_ARGMAX, CTL_EOL); 282 sysctl_createv(clog, 0, NULL, NULL, 283 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 284 CTLTYPE_INT, "securelevel", NULL, 285 sysctl_kern_securelevel, 0, &securelevel, 0, 286 CTL_KERN, KERN_SECURELVL, CTL_EOL); 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 289 CTLTYPE_STRING, "hostname", NULL, 290 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 291 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 294 CTLTYPE_INT, "hostid", NULL, 295 sysctl_kern_hostid, 0, NULL, 0, 296 CTL_KERN, KERN_HOSTID, CTL_EOL); 297 sysctl_createv(clog, 0, NULL, NULL, 298 CTLFLAG_PERMANENT, 299 CTLTYPE_STRUCT, "clockrate", NULL, 300 sysctl_kern_clockrate, 0, NULL, 301 sizeof(struct clockinfo), 302 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 303 sysctl_createv(clog, 0, NULL, NULL, 304 CTLFLAG_PERMANENT, 305 CTLTYPE_STRUCT, "vnode", NULL, 306 sysctl_kern_vnode, 0, NULL, 0, 307 CTL_KERN, KERN_VNODE, CTL_EOL); 308 sysctl_createv(clog, 0, NULL, NULL, 309 CTLFLAG_PERMANENT, 310 CTLTYPE_STRUCT, "file", NULL, 311 sysctl_kern_file, 0, NULL, 0, 312 CTL_KERN, KERN_FILE, CTL_EOL); 313 #ifndef GPROF 314 sysctl_createv(clog, 0, NULL, NULL, 315 CTLFLAG_PERMANENT, 316 CTLTYPE_NODE, "profiling", NULL, 317 sysctl_notavail, 0, NULL, 0, 318 CTL_KERN, KERN_PROF, CTL_EOL); 319 #endif 320 sysctl_createv(clog, 0, NULL, NULL, 321 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 322 CTLTYPE_INT, "posix1version", NULL, 323 NULL, _POSIX_VERSION, NULL, 0, 324 CTL_KERN, KERN_POSIX1, CTL_EOL); 325 sysctl_createv(clog, 0, NULL, NULL, 326 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 327 CTLTYPE_INT, "ngroups", NULL, 328 NULL, NGROUPS_MAX, NULL, 0, 329 CTL_KERN, KERN_NGROUPS, CTL_EOL); 330 sysctl_createv(clog, 0, NULL, NULL, 331 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 332 CTLTYPE_INT, "job_control", NULL, 333 NULL, 1, NULL, 0, 334 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 335 sysctl_createv(clog, 0, NULL, NULL, 336 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 337 CTLTYPE_INT, "saved_ids", NULL, NULL, 338 #ifdef _POSIX_SAVED_IDS 339 1, 340 #else /* _POSIX_SAVED_IDS */ 341 0, 342 #endif /* _POSIX_SAVED_IDS */ 343 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 344 sysctl_createv(clog, 0, NULL, NULL, 345 CTLFLAG_PERMANENT, 346 CTLTYPE_STRUCT, "boottime", NULL, 347 NULL, 0, &boottime, sizeof(boottime), 348 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 349 sysctl_createv(clog, 0, NULL, NULL, 350 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 351 CTLTYPE_STRING, "domainname", NULL, 352 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 353 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 356 CTLTYPE_INT, "maxpartitions", NULL, 357 NULL, MAXPARTITIONS, NULL, 0, 358 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 359 sysctl_createv(clog, 0, NULL, NULL, 360 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 361 CTLTYPE_INT, "rawpartition", NULL, 362 NULL, RAW_PART, NULL, 0, 363 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 364 sysctl_createv(clog, 0, NULL, NULL, 365 CTLFLAG_PERMANENT, 366 CTLTYPE_STRUCT, "timex", NULL, 367 sysctl_notavail, 0, NULL, 0, 368 CTL_KERN, KERN_TIMEX, CTL_EOL); 369 sysctl_createv(clog, 0, NULL, NULL, 370 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 371 CTLTYPE_INT, "autonicetime", NULL, 372 sysctl_kern_autonice, 0, &autonicetime, 0, 373 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 374 sysctl_createv(clog, 0, NULL, NULL, 375 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 376 CTLTYPE_INT, "autoniceval", NULL, 377 sysctl_kern_autonice, 0, &autoniceval, 0, 378 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 379 sysctl_createv(clog, 0, NULL, NULL, 380 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 381 CTLTYPE_INT, "rtc_offset", NULL, 382 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 383 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 384 sysctl_createv(clog, 0, NULL, NULL, 385 CTLFLAG_PERMANENT, 386 CTLTYPE_STRING, "root_device", NULL, 387 sysctl_root_device, 0, NULL, 0, 388 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 389 sysctl_createv(clog, 0, NULL, NULL, 390 CTLFLAG_PERMANENT, 391 CTLTYPE_INT, "msgbufsize", NULL, 392 sysctl_msgbuf, 0, &msgbufp->msg_bufs, 0, 393 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 396 CTLTYPE_INT, "fsync", NULL, 397 NULL, 1, NULL, 0, 398 CTL_KERN, KERN_FSYNC, CTL_EOL); 399 sysctl_createv(clog, 0, NULL, NULL, 400 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 401 CTLTYPE_INT, "sysvmsg", NULL, NULL, 402 #ifdef SYSVMSG 403 1, 404 #else /* SYSVMSG */ 405 0, 406 #endif /* SYSVMSG */ 407 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 410 CTLTYPE_INT, "sysvsem", NULL, NULL, 411 #ifdef SYSVSEM 412 1, 413 #else /* SYSVSEM */ 414 0, 415 #endif /* SYSVSEM */ 416 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 419 CTLTYPE_INT, "sysvshm", NULL, NULL, 420 #ifdef SYSVSHM 421 1, 422 #else /* SYSVSHM */ 423 0, 424 #endif /* SYSVSHM */ 425 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 426 sysctl_createv(clog, 0, NULL, NULL, 427 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 428 CTLTYPE_INT, "synchronized_io", NULL, 429 NULL, 1, NULL, 0, 430 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 431 sysctl_createv(clog, 0, NULL, NULL, 432 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 433 CTLTYPE_INT, "iov_max", NULL, 434 NULL, IOV_MAX, NULL, 0, 435 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 438 CTLTYPE_INT, "mapped_files", NULL, 439 NULL, 1, NULL, 0, 440 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 441 sysctl_createv(clog, 0, NULL, NULL, 442 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 443 CTLTYPE_INT, "memlock", NULL, 444 NULL, 1, NULL, 0, 445 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 446 sysctl_createv(clog, 0, NULL, NULL, 447 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 448 CTLTYPE_INT, "memlock_range", NULL, 449 NULL, 1, NULL, 0, 450 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 451 sysctl_createv(clog, 0, NULL, NULL, 452 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 453 CTLTYPE_INT, "memory_protection", NULL, 454 NULL, 1, NULL, 0, 455 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 456 sysctl_createv(clog, 0, NULL, NULL, 457 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 458 CTLTYPE_INT, "login_name_max", NULL, 459 NULL, LOGIN_NAME_MAX, NULL, 0, 460 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 461 sysctl_createv(clog, 0, NULL, NULL, 462 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 463 CTLTYPE_STRING, "defcorename", NULL, 464 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 465 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 466 sysctl_createv(clog, 0, NULL, NULL, 467 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 468 CTLTYPE_INT, "logsigexit", NULL, 469 NULL, 0, &kern_logsigexit, 0, 470 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 471 sysctl_createv(clog, 0, NULL, NULL, 472 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 473 CTLTYPE_INT, "fscale", NULL, 474 NULL, FSCALE, NULL, 0, 475 CTL_KERN, KERN_FSCALE, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT, 478 CTLTYPE_INT, "ccpu", NULL, 479 NULL, 0, &ccpu, 0, 480 CTL_KERN, KERN_CCPU, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT, 483 CTLTYPE_STRUCT, "cp_time", NULL, 484 sysctl_kern_cptime, 0, NULL, 0, 485 CTL_KERN, KERN_CP_TIME, CTL_EOL); 486 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 487 sysctl_createv(clog, 0, NULL, NULL, 488 CTLFLAG_PERMANENT, 489 CTLTYPE_STRUCT, "sysvipc_info", NULL, 490 sysctl_kern_sysvipc, 0, NULL, 0, 491 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 492 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 493 sysctl_createv(clog, 0, NULL, NULL, 494 CTLFLAG_PERMANENT, 495 CTLTYPE_INT, "msgbuf", NULL, 496 sysctl_msgbuf, 0, NULL, 0, 497 CTL_KERN, KERN_MSGBUF, CTL_EOL); 498 sysctl_createv(clog, 0, NULL, NULL, 499 CTLFLAG_PERMANENT, 500 CTLTYPE_STRUCT, "consdev", NULL, 501 sysctl_consdev, 0, NULL, sizeof(dev_t), 502 CTL_KERN, KERN_CONSDEV, CTL_EOL); 503 #if NPTY > 0 504 sysctl_createv(clog, 0, NULL, NULL, 505 CTLFLAG_PERMANENT, 506 CTLTYPE_INT, "maxptys", NULL, 507 sysctl_kern_maxptys, 0, NULL, 0, 508 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 509 #endif /* NPTY > 0 */ 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 512 CTLTYPE_INT, "maxphys", NULL, 513 NULL, MAXPHYS, NULL, 0, 514 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 515 sysctl_createv(clog, 0, NULL, NULL, 516 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 517 CTLTYPE_INT, "sbmax", NULL, 518 sysctl_kern_sbmax, 0, NULL, 0, 519 CTL_KERN, KERN_SBMAX, CTL_EOL); 520 sysctl_createv(clog, 0, NULL, NULL, 521 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 522 CTLTYPE_INT, "monotonic_clock", NULL, 523 /* XXX _POSIX_VERSION */ 524 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 525 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 526 sysctl_createv(clog, 0, NULL, NULL, 527 CTLFLAG_PERMANENT, 528 CTLTYPE_INT, "urandom", NULL, 529 sysctl_kern_urnd, 0, NULL, 0, 530 CTL_KERN, KERN_URND, CTL_EOL); 531 sysctl_createv(clog, 0, NULL, NULL, 532 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 533 CTLTYPE_INT, "labelsector", NULL, 534 NULL, LABELSECTOR, NULL, 0, 535 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "labeloffset", NULL, 539 NULL, LABELOFFSET, NULL, 0, 540 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 541 sysctl_createv(clog, 0, NULL, NULL, 542 CTLFLAG_PERMANENT, 543 CTLTYPE_NODE, "lwp", NULL, 544 sysctl_kern_lwp, 0, NULL, 0, 545 CTL_KERN, KERN_LWP, CTL_EOL); 546 sysctl_createv(clog, 0, NULL, NULL, 547 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 548 CTLTYPE_INT, "forkfsleep", NULL, 549 sysctl_kern_forkfsleep, 0, NULL, 0, 550 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 551 sysctl_createv(clog, 0, NULL, NULL, 552 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 553 CTLTYPE_INT, "posix_threads", NULL, 554 /* XXX _POSIX_VERSION */ 555 NULL, _POSIX_THREADS, NULL, 0, 556 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 557 sysctl_createv(clog, 0, NULL, NULL, 558 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 559 CTLTYPE_INT, "posix_semaphores", NULL, NULL, 560 #ifdef P1003_1B_SEMAPHORE 561 200112, 562 #else /* P1003_1B_SEMAPHORE */ 563 0, 564 #endif /* P1003_1B_SEMAPHORE */ 565 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 566 sysctl_createv(clog, 0, NULL, NULL, 567 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 568 CTLTYPE_INT, "posix_barriers", NULL, 569 /* XXX _POSIX_VERSION */ 570 NULL, _POSIX_BARRIERS, NULL, 0, 571 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 574 CTLTYPE_INT, "posix_timers", NULL, 575 /* XXX _POSIX_VERSION */ 576 NULL, _POSIX_TIMERS, NULL, 0, 577 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 580 CTLTYPE_INT, "posix_spin_locks", NULL, 581 /* XXX _POSIX_VERSION */ 582 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 583 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 584 sysctl_createv(clog, 0, NULL, NULL, 585 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 586 CTLTYPE_INT, "posix_reader_writer_locks", NULL, 587 /* XXX _POSIX_VERSION */ 588 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 589 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 590 sysctl_createv(clog, 0, NULL, NULL, 591 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 592 CTLTYPE_INT, "dump_on_panic", NULL, 593 NULL, 0, &dumponpanic, 0, 594 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 595 sysctl_createv(clog, 0, NULL, NULL, 596 CTLFLAG_PERMANENT, 597 CTLTYPE_INT, "root_partition", NULL, 598 sysctl_kern_root_partition, 0, NULL, 0, 599 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 600 sysctl_createv(clog, 0, NULL, NULL, 601 CTLFLAG_PERMANENT, 602 CTLTYPE_STRUCT, "drivers", NULL, 603 sysctl_kern_drivers, 0, NULL, 0, 604 CTL_KERN, KERN_DRIVERS, CTL_EOL); 605 } 606 607 SYSCTL_SETUP(sysctl_kern_proc_setup, 608 "sysctl kern.proc/proc2/proc_args subtree setup") 609 { 610 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT, 613 CTLTYPE_NODE, "kern", NULL, 614 NULL, 0, NULL, 0, 615 CTL_KERN, CTL_EOL); 616 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT, 619 CTLTYPE_NODE, "proc", NULL, 620 sysctl_doeproc, 0, NULL, 0, 621 CTL_KERN, KERN_PROC, CTL_EOL); 622 sysctl_createv(clog, 0, NULL, NULL, 623 CTLFLAG_PERMANENT, 624 CTLTYPE_NODE, "proc2", NULL, 625 sysctl_doeproc, 0, NULL, 0, 626 CTL_KERN, KERN_PROC2, CTL_EOL); 627 sysctl_createv(clog, 0, NULL, NULL, 628 CTLFLAG_PERMANENT, 629 CTLTYPE_NODE, "proc_args", NULL, 630 sysctl_kern_proc_args, 0, NULL, 0, 631 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 632 633 /* 634 "nodes" under these: 635 636 KERN_PROC_ALL 637 KERN_PROC_PID pid 638 KERN_PROC_PGRP pgrp 639 KERN_PROC_SESSION sess 640 KERN_PROC_TTY tty 641 KERN_PROC_UID uid 642 KERN_PROC_RUID uid 643 KERN_PROC_GID gid 644 KERN_PROC_RGID gid 645 646 all in all, probably not worth the effort... 647 */ 648 } 649 650 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 651 { 652 u_int u; 653 u_quad_t q; 654 655 sysctl_createv(clog, 0, NULL, NULL, 656 CTLFLAG_PERMANENT, 657 CTLTYPE_NODE, "hw", NULL, 658 NULL, 0, NULL, 0, 659 CTL_HW, CTL_EOL); 660 661 sysctl_createv(clog, 0, NULL, NULL, 662 CTLFLAG_PERMANENT, 663 CTLTYPE_STRING, "machine", NULL, 664 NULL, 0, machine, 0, 665 CTL_HW, HW_MACHINE, CTL_EOL); 666 sysctl_createv(clog, 0, NULL, NULL, 667 CTLFLAG_PERMANENT, 668 CTLTYPE_STRING, "model", NULL, 669 NULL, 0, cpu_model, 0, 670 CTL_HW, HW_MODEL, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT, 673 CTLTYPE_INT, "ncpu", NULL, 674 sysctl_hw_ncpu, 0, NULL, 0, 675 CTL_HW, HW_NCPU, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 678 CTLTYPE_INT, "byteorder", NULL, 679 NULL, BYTE_ORDER, NULL, 0, 680 CTL_HW, HW_BYTEORDER, CTL_EOL); 681 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 682 UINT_MAX : physmem * PAGE_SIZE; 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "physmem", NULL, 686 NULL, u, NULL, 0, 687 CTL_HW, HW_PHYSMEM, CTL_EOL); 688 sysctl_createv(clog, 0, NULL, NULL, 689 CTLFLAG_PERMANENT, 690 CTLTYPE_INT, "usermem", NULL, 691 sysctl_hw_usermem, 0, NULL, 0, 692 CTL_HW, HW_USERMEM, CTL_EOL); 693 sysctl_createv(clog, 0, NULL, NULL, 694 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 695 CTLTYPE_INT, "pagesize", NULL, 696 NULL, PAGE_SIZE, NULL, 0, 697 CTL_HW, HW_PAGESIZE, CTL_EOL); 698 sysctl_createv(clog, 0, NULL, NULL, 699 CTLFLAG_PERMANENT, 700 CTLTYPE_STRING, "disknames", NULL, 701 sysctl_hw_disknames, 0, NULL, 0, 702 CTL_HW, HW_DISKNAMES, CTL_EOL); 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT, 705 CTLTYPE_STRUCT, "diskstats", NULL, 706 sysctl_hw_diskstats, 0, NULL, 0, 707 CTL_HW, HW_DISKSTATS, CTL_EOL); 708 sysctl_createv(clog, 0, NULL, NULL, 709 CTLFLAG_PERMANENT, 710 CTLTYPE_STRING, "machine_arch", NULL, 711 NULL, 0, machine_arch, 0, 712 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 713 sysctl_createv(clog, 0, NULL, NULL, 714 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 715 CTLTYPE_INT, "alignbytes", NULL, 716 NULL, ALIGNBYTES, NULL, 0, 717 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 718 sysctl_createv(clog, 0, NULL, NULL, 719 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 720 CTLTYPE_STRING, "cnmagic", NULL, 721 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 722 CTL_HW, HW_CNMAGIC, CTL_EOL); 723 q = (u_quad_t)physmem * PAGE_SIZE; 724 sysctl_createv(clog, 0, NULL, NULL, 725 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 726 CTLTYPE_QUAD, "physmem64", NULL, 727 NULL, q, NULL, 0, 728 CTL_HW, HW_PHYSMEM64, CTL_EOL); 729 sysctl_createv(clog, 0, NULL, NULL, 730 CTLFLAG_PERMANENT, 731 CTLTYPE_QUAD, "usermem64", NULL, 732 sysctl_hw_usermem, 0, NULL, 0, 733 CTL_HW, HW_USERMEM64, CTL_EOL); 734 } 735 736 #ifdef DEBUG 737 /* 738 * Debugging related system variables. 739 */ 740 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 741 struct ctldebug debug5, debug6, debug7, debug8, debug9; 742 struct ctldebug debug10, debug11, debug12, debug13, debug14; 743 struct ctldebug debug15, debug16, debug17, debug18, debug19; 744 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 745 &debug0, &debug1, &debug2, &debug3, &debug4, 746 &debug5, &debug6, &debug7, &debug8, &debug9, 747 &debug10, &debug11, &debug12, &debug13, &debug14, 748 &debug15, &debug16, &debug17, &debug18, &debug19, 749 }; 750 751 /* 752 * this setup routine is a replacement for debug_sysctl() 753 * 754 * note that it creates several nodes per defined debug variable 755 */ 756 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 757 { 758 struct ctldebug *cdp; 759 char nodename[20]; 760 int i; 761 762 /* 763 * two ways here: 764 * 765 * the "old" way (debug.name -> value) which was emulated by 766 * the sysctl(8) binary 767 * 768 * the new way, which the sysctl(8) binary was actually using 769 770 node debug 771 node debug.0 772 string debug.0.name 773 int debug.0.value 774 int debug.name 775 776 */ 777 778 sysctl_createv(clog, 0, NULL, NULL, 779 CTLFLAG_PERMANENT, 780 CTLTYPE_NODE, "debug", NULL, 781 NULL, 0, NULL, 0, 782 CTL_DEBUG, CTL_EOL); 783 784 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 785 cdp = debugvars[i]; 786 if (cdp->debugname == NULL || cdp->debugvar == NULL) 787 continue; 788 789 snprintf(nodename, sizeof(nodename), "debug%d", i); 790 sysctl_createv(clog, 0, NULL, NULL, 791 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 792 CTLTYPE_NODE, nodename, NULL, 793 NULL, 0, NULL, 0, 794 CTL_DEBUG, i, CTL_EOL); 795 sysctl_createv(clog, 0, NULL, NULL, 796 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 797 CTLTYPE_STRING, "name", NULL, 798 NULL, 0, cdp->debugname, 0, 799 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 800 sysctl_createv(clog, 0, NULL, NULL, 801 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 802 CTLTYPE_INT, "value", NULL, 803 NULL, 0, cdp->debugvar, 0, 804 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 805 sysctl_createv(clog, 0, NULL, NULL, 806 CTLFLAG_PERMANENT, 807 CTLTYPE_INT, cdp->debugname, NULL, 808 NULL, 0, cdp->debugvar, 0, 809 CTL_DEBUG, CTL_CREATE, CTL_EOL); 810 } 811 } 812 #endif /* DEBUG */ 813 814 /* 815 * ******************************************************************** 816 * section 2: private node-specific helper routines. 817 * ******************************************************************** 818 */ 819 820 /* 821 * sysctl helper routine for kern.maxvnodes. drain vnodes if 822 * new value is lower than desiredvnodes and then calls reinit 823 * routines that needs to adjust to the new value. 824 */ 825 static int 826 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 827 { 828 int error, new_vnodes, old_vnodes; 829 struct sysctlnode node; 830 831 new_vnodes = desiredvnodes; 832 node = *rnode; 833 node.sysctl_data = &new_vnodes; 834 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 835 if (error || newp == NULL) 836 return (error); 837 838 old_vnodes = desiredvnodes; 839 desiredvnodes = new_vnodes; 840 if (new_vnodes < old_vnodes) { 841 error = vfs_drainvnodes(new_vnodes, l->l_proc); 842 if (error) { 843 desiredvnodes = old_vnodes; 844 return (error); 845 } 846 } 847 vfs_reinit(); 848 nchreinit(); 849 850 return (0); 851 } 852 853 /* 854 * sysctl helper routine for rtc_offset - set time after changes 855 */ 856 static int 857 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 858 { 859 struct timeval tv, delta; 860 int s, error, new_rtc_offset; 861 struct sysctlnode node; 862 863 new_rtc_offset = rtc_offset; 864 node = *rnode; 865 node.sysctl_data = &new_rtc_offset; 866 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 867 if (error || newp == NULL) 868 return (error); 869 870 if (securelevel > 0) 871 return (EPERM); 872 if (rtc_offset == new_rtc_offset) 873 return (0); 874 875 /* if we change the offset, adjust the time */ 876 s = splclock(); 877 tv = time; 878 splx(s); 879 delta.tv_sec = 60*(new_rtc_offset - rtc_offset); 880 delta.tv_usec = 0; 881 timeradd(&tv, &delta, &tv); 882 rtc_offset = new_rtc_offset; 883 settime(&tv); 884 885 return (0); 886 } 887 888 /* 889 * sysctl helper routine for kern.maxvnodes. ensures that the new 890 * values are not too low or too high. 891 */ 892 static int 893 sysctl_kern_maxproc(SYSCTLFN_ARGS) 894 { 895 int error, nmaxproc; 896 struct sysctlnode node; 897 898 nmaxproc = maxproc; 899 node = *rnode; 900 node.sysctl_data = &nmaxproc; 901 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 902 if (error || newp == NULL) 903 return (error); 904 905 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 906 return (EINVAL); 907 #ifdef __HAVE_CPU_MAXPROC 908 if (nmaxproc > cpu_maxproc()) 909 return (EINVAL); 910 #endif 911 maxproc = nmaxproc; 912 913 return (0); 914 } 915 916 /* 917 * sysctl helper routine for kern.securelevel. ensures that the value 918 * only rises unless the caller has pid 1 (assumed to be init). 919 */ 920 static int 921 sysctl_kern_securelevel(SYSCTLFN_ARGS) 922 { 923 int newsecurelevel, error; 924 struct sysctlnode node; 925 926 newsecurelevel = securelevel; 927 node = *rnode; 928 node.sysctl_data = &newsecurelevel; 929 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 930 if (error || newp == NULL) 931 return (error); 932 933 if (newsecurelevel < securelevel && l && l->l_proc->p_pid != 1) 934 return (EPERM); 935 securelevel = newsecurelevel; 936 937 return (error); 938 } 939 940 /* 941 * sysctl helper function for kern.hostid. the hostid is a long, but 942 * we export it as an int, so we need to give it a little help. 943 */ 944 static int 945 sysctl_kern_hostid(SYSCTLFN_ARGS) 946 { 947 int error, inthostid; 948 struct sysctlnode node; 949 950 inthostid = hostid; /* XXX assumes sizeof int >= sizeof long */ 951 node = *rnode; 952 node.sysctl_data = &inthostid; 953 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 954 if (error || newp == NULL) 955 return (error); 956 957 hostid = inthostid; 958 959 return (0); 960 } 961 962 /* 963 * sysctl helper function for kern.hostname and kern.domainnname. 964 * resets the relevant recorded length when the underlying name is 965 * changed. 966 */ 967 static int 968 sysctl_setlen(SYSCTLFN_ARGS) 969 { 970 int error; 971 972 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 973 if (error || newp == NULL) 974 return (error); 975 976 switch (rnode->sysctl_num) { 977 case KERN_HOSTNAME: 978 hostnamelen = strlen((const char*)rnode->sysctl_data); 979 break; 980 case KERN_DOMAINNAME: 981 domainnamelen = strlen((const char*)rnode->sysctl_data); 982 break; 983 } 984 985 return (0); 986 } 987 988 /* 989 * sysctl helper routine for kern.clockrate. assembles a struct on 990 * the fly to be returned to the caller. 991 */ 992 static int 993 sysctl_kern_clockrate(SYSCTLFN_ARGS) 994 { 995 struct clockinfo clkinfo; 996 struct sysctlnode node; 997 998 clkinfo.tick = tick; 999 clkinfo.tickadj = tickadj; 1000 clkinfo.hz = hz; 1001 clkinfo.profhz = profhz; 1002 clkinfo.stathz = stathz ? stathz : hz; 1003 1004 node = *rnode; 1005 node.sysctl_data = &clkinfo; 1006 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1007 } 1008 1009 1010 /* 1011 * sysctl helper routine for kern.file pseudo-subtree. 1012 */ 1013 static int 1014 sysctl_kern_file(SYSCTLFN_ARGS) 1015 { 1016 int error; 1017 size_t buflen; 1018 struct file *fp; 1019 char *start, *where; 1020 1021 start = where = oldp; 1022 buflen = *oldlenp; 1023 if (where == NULL) { 1024 /* 1025 * overestimate by 10 files 1026 */ 1027 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1028 return (0); 1029 } 1030 1031 /* 1032 * first copyout filehead 1033 */ 1034 if (buflen < sizeof(filehead)) { 1035 *oldlenp = 0; 1036 return (0); 1037 } 1038 error = copyout(&filehead, where, sizeof(filehead)); 1039 if (error) 1040 return (error); 1041 buflen -= sizeof(filehead); 1042 where += sizeof(filehead); 1043 1044 /* 1045 * followed by an array of file structures 1046 */ 1047 LIST_FOREACH(fp, &filehead, f_list) { 1048 if (buflen < sizeof(struct file)) { 1049 *oldlenp = where - start; 1050 return (ENOMEM); 1051 } 1052 error = copyout(fp, where, sizeof(struct file)); 1053 if (error) 1054 return (error); 1055 buflen -= sizeof(struct file); 1056 where += sizeof(struct file); 1057 } 1058 *oldlenp = where - start; 1059 return (0); 1060 } 1061 1062 /* 1063 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1064 * asserts that the assigned value is in the correct range. 1065 */ 1066 static int 1067 sysctl_kern_autonice(SYSCTLFN_ARGS) 1068 { 1069 int error, t = 0; 1070 struct sysctlnode node; 1071 1072 node = *rnode; 1073 t = *(int*)node.sysctl_data; 1074 node.sysctl_data = &t; 1075 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1076 if (error || newp == NULL) 1077 return (error); 1078 1079 switch (node.sysctl_num) { 1080 case KERN_AUTONICETIME: 1081 if (t >= 0) 1082 autonicetime = t; 1083 break; 1084 case KERN_AUTONICEVAL: 1085 if (t < PRIO_MIN) 1086 t = PRIO_MIN; 1087 else if (t > PRIO_MAX) 1088 t = PRIO_MAX; 1089 autoniceval = t; 1090 break; 1091 } 1092 1093 return (0); 1094 } 1095 1096 /* 1097 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1098 * former it merely checks the the message buffer is set up. for the 1099 * latter, it also copies out the data if necessary. 1100 */ 1101 static int 1102 sysctl_msgbuf(SYSCTLFN_ARGS) 1103 { 1104 char *where = oldp; 1105 size_t len, maxlen; 1106 long beg, end; 1107 int error; 1108 1109 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1110 msgbufenabled = 0; 1111 return (ENXIO); 1112 } 1113 1114 switch (rnode->sysctl_num) { 1115 case KERN_MSGBUFSIZE: 1116 return (sysctl_lookup(SYSCTLFN_CALL(rnode))); 1117 case KERN_MSGBUF: 1118 break; 1119 default: 1120 return (EOPNOTSUPP); 1121 } 1122 1123 if (newp != NULL) 1124 return (EPERM); 1125 1126 if (oldp == NULL) { 1127 /* always return full buffer size */ 1128 *oldlenp = msgbufp->msg_bufs; 1129 return (0); 1130 } 1131 1132 error = 0; 1133 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1134 1135 /* 1136 * First, copy from the write pointer to the end of 1137 * message buffer. 1138 */ 1139 beg = msgbufp->msg_bufx; 1140 end = msgbufp->msg_bufs; 1141 while (maxlen > 0) { 1142 len = MIN(end - beg, maxlen); 1143 if (len == 0) 1144 break; 1145 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1146 if (error) 1147 break; 1148 where += len; 1149 maxlen -= len; 1150 1151 /* 1152 * ... then, copy from the beginning of message buffer to 1153 * the write pointer. 1154 */ 1155 beg = 0; 1156 end = msgbufp->msg_bufx; 1157 } 1158 1159 return (error); 1160 } 1161 1162 /* 1163 * sysctl helper routine for kern.defcorename. in the case of a new 1164 * string being assigned, check that it's not a zero-length string. 1165 * (XXX the check in -current doesn't work, but do we really care?) 1166 */ 1167 static int 1168 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1169 { 1170 int error; 1171 char newcorename[MAXPATHLEN]; 1172 struct sysctlnode node; 1173 1174 node = *rnode; 1175 node.sysctl_data = &newcorename[0]; 1176 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1177 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1178 if (error || newp == NULL) 1179 return (error); 1180 1181 /* 1182 * when sysctl_lookup() deals with a string, it's guaranteed 1183 * to come back nul terminated. so there. :) 1184 */ 1185 if (strlen(newcorename) == 0) 1186 return (EINVAL); 1187 1188 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1189 1190 return (0); 1191 } 1192 1193 /* 1194 * sysctl helper routine for kern.cp_time node. adds up cpu time 1195 * across all cpus. 1196 */ 1197 static int 1198 sysctl_kern_cptime(SYSCTLFN_ARGS) 1199 { 1200 struct sysctlnode node = *rnode; 1201 1202 #ifndef MULTIPROCESSOR 1203 1204 if (namelen == 1) { 1205 if (name[0] != 0) 1206 return (ENOENT); 1207 /* 1208 * you're allowed to ask for the zero'th processor 1209 */ 1210 name++; 1211 namelen--; 1212 } 1213 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1214 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1215 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1216 1217 #else /* MULTIPROCESSOR */ 1218 1219 u_int64_t *cp_time = NULL; 1220 int error, n = sysctl_ncpus(), i; 1221 struct cpu_info *ci; 1222 CPU_INFO_ITERATOR cii; 1223 1224 /* 1225 * if you specifically pass a buffer that is the size of the 1226 * sum, or if you are probing for the size, you get the "sum" 1227 * of cp_time (and the size thereof) across all processors. 1228 * 1229 * alternately, you can pass an additional mib number and get 1230 * cp_time for that particular processor. 1231 */ 1232 switch (namelen) { 1233 case 0: 1234 if (*oldlenp == sizeof(u_int64_t) * CPUSTATES || oldp == NULL) { 1235 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1236 n = -1; /* SUM */ 1237 } 1238 else { 1239 node.sysctl_size = n * sizeof(u_int64_t) * CPUSTATES; 1240 n = -2; /* ALL */ 1241 } 1242 break; 1243 case 1: 1244 if (name[0] < 0 || name[0] >= n) 1245 return (ENOENT); /* ENOSUCHPROCESSOR */ 1246 node.sysctl_size = sizeof(u_int64_t) * CPUSTATES; 1247 n = name[0]; 1248 /* 1249 * adjust these so that sysctl_lookup() will be happy 1250 */ 1251 name++; 1252 namelen--; 1253 break; 1254 default: 1255 return (EINVAL); 1256 } 1257 1258 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1259 if (cp_time == NULL) 1260 return (ENOMEM); 1261 node.sysctl_data = cp_time; 1262 memset(cp_time, 0, node.sysctl_size); 1263 1264 for (CPU_INFO_FOREACH(cii, ci)) { 1265 if (n <= 0) 1266 for (i = 0; i < CPUSTATES; i++) 1267 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1268 /* 1269 * if a specific processor was requested and we just 1270 * did it, we're done here 1271 */ 1272 if (n == 0) 1273 break; 1274 /* 1275 * if doing "all", skip to next cp_time set for next processor 1276 */ 1277 if (n == -2) 1278 cp_time += CPUSTATES; 1279 /* 1280 * if we're doing a specific processor, we're one 1281 * processor closer 1282 */ 1283 if (n > 0) 1284 n--; 1285 } 1286 1287 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1288 free(node.sysctl_data, M_TEMP); 1289 return (error); 1290 1291 #endif /* MULTIPROCESSOR */ 1292 } 1293 1294 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1295 /* 1296 * sysctl helper routine for kern.sysvipc_info subtree. 1297 */ 1298 1299 #define FILL_PERM(src, dst) do { \ 1300 (dst)._key = (src)._key; \ 1301 (dst).uid = (src).uid; \ 1302 (dst).gid = (src).gid; \ 1303 (dst).cuid = (src).cuid; \ 1304 (dst).cgid = (src).cgid; \ 1305 (dst).mode = (src).mode; \ 1306 (dst)._seq = (src)._seq; \ 1307 } while (/*CONSTCOND*/ 0); 1308 #define FILL_MSG(src, dst) do { \ 1309 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1310 (dst).msg_qnum = (src).msg_qnum; \ 1311 (dst).msg_qbytes = (src).msg_qbytes; \ 1312 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1313 (dst).msg_lspid = (src).msg_lspid; \ 1314 (dst).msg_lrpid = (src).msg_lrpid; \ 1315 (dst).msg_stime = (src).msg_stime; \ 1316 (dst).msg_rtime = (src).msg_rtime; \ 1317 (dst).msg_ctime = (src).msg_ctime; \ 1318 } while (/*CONSTCOND*/ 0) 1319 #define FILL_SEM(src, dst) do { \ 1320 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1321 (dst).sem_nsems = (src).sem_nsems; \ 1322 (dst).sem_otime = (src).sem_otime; \ 1323 (dst).sem_ctime = (src).sem_ctime; \ 1324 } while (/*CONSTCOND*/ 0) 1325 #define FILL_SHM(src, dst) do { \ 1326 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1327 (dst).shm_segsz = (src).shm_segsz; \ 1328 (dst).shm_lpid = (src).shm_lpid; \ 1329 (dst).shm_cpid = (src).shm_cpid; \ 1330 (dst).shm_atime = (src).shm_atime; \ 1331 (dst).shm_dtime = (src).shm_dtime; \ 1332 (dst).shm_ctime = (src).shm_ctime; \ 1333 (dst).shm_nattch = (src).shm_nattch; \ 1334 } while (/*CONSTCOND*/ 0) 1335 1336 static int 1337 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1338 { 1339 void *where = oldp; 1340 size_t *sizep = oldlenp; 1341 #ifdef SYSVMSG 1342 struct msg_sysctl_info *msgsi = NULL; 1343 #endif 1344 #ifdef SYSVSEM 1345 struct sem_sysctl_info *semsi = NULL; 1346 #endif 1347 #ifdef SYSVSHM 1348 struct shm_sysctl_info *shmsi = NULL; 1349 #endif 1350 size_t infosize, dssize, tsize, buflen; 1351 void *buf = NULL; 1352 char *start; 1353 int32_t nds; 1354 int i, error, ret; 1355 1356 if (namelen != 1) 1357 return (EINVAL); 1358 1359 start = where; 1360 buflen = *sizep; 1361 1362 switch (*name) { 1363 case KERN_SYSVIPC_MSG_INFO: 1364 #ifdef SYSVMSG 1365 infosize = sizeof(msgsi->msginfo); 1366 nds = msginfo.msgmni; 1367 dssize = sizeof(msgsi->msgids[0]); 1368 break; 1369 #else 1370 return (EINVAL); 1371 #endif 1372 case KERN_SYSVIPC_SEM_INFO: 1373 #ifdef SYSVSEM 1374 infosize = sizeof(semsi->seminfo); 1375 nds = seminfo.semmni; 1376 dssize = sizeof(semsi->semids[0]); 1377 break; 1378 #else 1379 return (EINVAL); 1380 #endif 1381 case KERN_SYSVIPC_SHM_INFO: 1382 #ifdef SYSVSHM 1383 infosize = sizeof(shmsi->shminfo); 1384 nds = shminfo.shmmni; 1385 dssize = sizeof(shmsi->shmids[0]); 1386 break; 1387 #else 1388 return (EINVAL); 1389 #endif 1390 default: 1391 return (EINVAL); 1392 } 1393 /* 1394 * Round infosize to 64 bit boundary if requesting more than just 1395 * the info structure or getting the total data size. 1396 */ 1397 if (where == NULL || *sizep > infosize) 1398 infosize = ((infosize + 7) / 8) * 8; 1399 tsize = infosize + nds * dssize; 1400 1401 /* Return just the total size required. */ 1402 if (where == NULL) { 1403 *sizep = tsize; 1404 return (0); 1405 } 1406 1407 /* Not enough room for even the info struct. */ 1408 if (buflen < infosize) { 1409 *sizep = 0; 1410 return (ENOMEM); 1411 } 1412 buf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1413 memset(buf, 0, min(tsize, buflen)); 1414 1415 switch (*name) { 1416 #ifdef SYSVMSG 1417 case KERN_SYSVIPC_MSG_INFO: 1418 msgsi = (struct msg_sysctl_info *)buf; 1419 msgsi->msginfo = msginfo; 1420 break; 1421 #endif 1422 #ifdef SYSVSEM 1423 case KERN_SYSVIPC_SEM_INFO: 1424 semsi = (struct sem_sysctl_info *)buf; 1425 semsi->seminfo = seminfo; 1426 break; 1427 #endif 1428 #ifdef SYSVSHM 1429 case KERN_SYSVIPC_SHM_INFO: 1430 shmsi = (struct shm_sysctl_info *)buf; 1431 shmsi->shminfo = shminfo; 1432 break; 1433 #endif 1434 } 1435 buflen -= infosize; 1436 1437 ret = 0; 1438 if (buflen > 0) { 1439 /* Fill in the IPC data structures. */ 1440 for (i = 0; i < nds; i++) { 1441 if (buflen < dssize) { 1442 ret = ENOMEM; 1443 break; 1444 } 1445 switch (*name) { 1446 #ifdef SYSVMSG 1447 case KERN_SYSVIPC_MSG_INFO: 1448 FILL_MSG(msqids[i], msgsi->msgids[i]); 1449 break; 1450 #endif 1451 #ifdef SYSVSEM 1452 case KERN_SYSVIPC_SEM_INFO: 1453 FILL_SEM(sema[i], semsi->semids[i]); 1454 break; 1455 #endif 1456 #ifdef SYSVSHM 1457 case KERN_SYSVIPC_SHM_INFO: 1458 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1459 break; 1460 #endif 1461 } 1462 buflen -= dssize; 1463 } 1464 } 1465 *sizep -= buflen; 1466 error = copyout(buf, start, *sizep); 1467 /* If copyout succeeded, use return code set earlier. */ 1468 if (error == 0) 1469 error = ret; 1470 if (buf) 1471 free(buf, M_TEMP); 1472 return (error); 1473 } 1474 1475 #undef FILL_PERM 1476 #undef FILL_MSG 1477 #undef FILL_SEM 1478 #undef FILL_SHM 1479 1480 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1481 1482 #if NPTY > 0 1483 /* 1484 * sysctl helper routine for kern.maxptys. ensures that any new value 1485 * is acceptable to the pty subsystem. 1486 */ 1487 static int 1488 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1489 { 1490 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1491 int error, max; 1492 struct sysctlnode node; 1493 1494 /* get current value of maxptys */ 1495 max = pty_maxptys(0, 0); 1496 1497 node = *rnode; 1498 node.sysctl_data = &max; 1499 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1500 if (error || newp == NULL) 1501 return (error); 1502 1503 if (max != pty_maxptys(max, 1)) 1504 return (EINVAL); 1505 1506 return (0); 1507 } 1508 #endif /* NPTY > 0 */ 1509 1510 /* 1511 * sysctl helper routine for kern.sbmax. basically just ensures that 1512 * any new value is not too small. 1513 */ 1514 static int 1515 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1516 { 1517 int error, new_sbmax; 1518 struct sysctlnode node; 1519 1520 new_sbmax = sb_max; 1521 node = *rnode; 1522 node.sysctl_data = &new_sbmax; 1523 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1524 if (error || newp == NULL) 1525 return (error); 1526 1527 error = sb_max_set(new_sbmax); 1528 1529 return (error); 1530 } 1531 1532 /* 1533 * sysctl helper routine for kern.urandom node. picks a random number 1534 * for you. 1535 */ 1536 static int 1537 sysctl_kern_urnd(SYSCTLFN_ARGS) 1538 { 1539 #if NRND > 0 1540 int v; 1541 1542 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1543 struct sysctlnode node = *rnode; 1544 node.sysctl_data = &v; 1545 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1546 } 1547 else 1548 return (EIO); /*XXX*/ 1549 #else 1550 return (EOPNOTSUPP); 1551 #endif 1552 } 1553 1554 /* 1555 * sysctl helper routine to do kern.lwp.* work. 1556 */ 1557 static int 1558 sysctl_kern_lwp(SYSCTLFN_ARGS) 1559 { 1560 struct kinfo_lwp klwp; 1561 struct proc *p; 1562 struct lwp *l2; 1563 char *where, *dp; 1564 int pid, elem_size, elem_count; 1565 int buflen, needed, error; 1566 1567 if (namelen == 1 && name[0] == CTL_QUERY) 1568 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1569 1570 dp = where = oldp; 1571 buflen = where != NULL ? *oldlenp : 0; 1572 error = needed = 0; 1573 1574 if (newp != NULL || namelen != 3) 1575 return (EINVAL); 1576 pid = name[0]; 1577 elem_size = name[1]; 1578 elem_count = name[2]; 1579 1580 p = pfind(pid); 1581 if (p == NULL) 1582 return (ESRCH); 1583 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1584 if (buflen >= elem_size && elem_count > 0) { 1585 fill_lwp(l2, &klwp); 1586 /* 1587 * Copy out elem_size, but not larger than 1588 * the size of a struct kinfo_proc2. 1589 */ 1590 error = copyout(&klwp, dp, 1591 min(sizeof(klwp), elem_size)); 1592 if (error) 1593 goto cleanup; 1594 dp += elem_size; 1595 buflen -= elem_size; 1596 elem_count--; 1597 } 1598 needed += elem_size; 1599 } 1600 1601 if (where != NULL) { 1602 *oldlenp = dp - where; 1603 if (needed > *oldlenp) 1604 return (ENOMEM); 1605 } else { 1606 needed += KERN_LWPSLOP; 1607 *oldlenp = needed; 1608 } 1609 return (0); 1610 cleanup: 1611 return (error); 1612 } 1613 1614 /* 1615 * sysctl helper routine for kern.forkfsleep node. ensures that the 1616 * given value is not too large or two small, and is at least one 1617 * timer tick if not zero. 1618 */ 1619 static int 1620 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1621 { 1622 /* userland sees value in ms, internally is in ticks */ 1623 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1624 int error, timo, lsleep; 1625 struct sysctlnode node; 1626 1627 lsleep = forkfsleep * 1000 / hz; 1628 node = *rnode; 1629 node.sysctl_data = &lsleep; 1630 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1631 if (error || newp == NULL) 1632 return (error); 1633 1634 /* refuse negative values, and overly 'long time' */ 1635 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1636 return (EINVAL); 1637 1638 timo = mstohz(lsleep); 1639 1640 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1641 if (lsleep != 0 && timo == 0) 1642 forkfsleep = 1; 1643 else 1644 forkfsleep = timo; 1645 1646 return (0); 1647 } 1648 1649 /* 1650 * sysctl helper routine for kern.root_partition 1651 */ 1652 static int 1653 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1654 { 1655 int rootpart = DISKPART(rootdev); 1656 struct sysctlnode node = *rnode; 1657 1658 node.sysctl_data = &rootpart; 1659 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1660 } 1661 1662 /* 1663 * sysctl helper function for kern.drivers 1664 */ 1665 static int 1666 sysctl_kern_drivers(SYSCTLFN_ARGS) 1667 { 1668 int error; 1669 size_t buflen; 1670 struct kinfo_drivers kd; 1671 char *start, *where; 1672 const char *dname; 1673 int i; 1674 extern struct devsw_conv *devsw_conv; 1675 extern int max_devsw_convs; 1676 1677 if (newp != NULL || namelen != 0) 1678 return (EINVAL); 1679 1680 start = where = oldp; 1681 buflen = *oldlenp; 1682 if (where == NULL) { 1683 *oldlenp = max_devsw_convs * sizeof kd; 1684 return 0; 1685 } 1686 1687 /* 1688 * An array of kinfo_drivers structures 1689 */ 1690 error = 0; 1691 for (i = 0; i < max_devsw_convs; i++) { 1692 dname = devsw_conv[i].d_name; 1693 if (dname == NULL) 1694 continue; 1695 if (buflen < sizeof kd) { 1696 error = ENOMEM; 1697 break; 1698 } 1699 memset(&kd, 0, sizeof(kd)); 1700 kd.d_bmajor = devsw_conv[i].d_bmajor; 1701 kd.d_cmajor = devsw_conv[i].d_cmajor; 1702 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1703 error = copyout(&kd, where, sizeof kd); 1704 if (error != 0) 1705 break; 1706 buflen -= sizeof kd; 1707 where += sizeof kd; 1708 } 1709 *oldlenp = where - start; 1710 return error; 1711 } 1712 1713 static int 1714 sysctl_doeproc(SYSCTLFN_ARGS) 1715 { 1716 struct eproc eproc; 1717 struct kinfo_proc2 kproc2; 1718 struct kinfo_proc *dp; 1719 struct proc *p; 1720 const struct proclist_desc *pd; 1721 char *where, *dp2; 1722 int type, op, arg; 1723 u_int elem_size, elem_count; 1724 size_t buflen, needed; 1725 int error; 1726 1727 if (namelen == 1 && name[0] == CTL_QUERY) 1728 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1729 1730 dp = oldp; 1731 dp2 = where = oldp; 1732 buflen = where != NULL ? *oldlenp : 0; 1733 error = 0; 1734 needed = 0; 1735 type = rnode->sysctl_num; 1736 1737 if (type == KERN_PROC) { 1738 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 1739 return (EINVAL); 1740 op = name[0]; 1741 if (op != KERN_PROC_ALL) 1742 arg = name[1]; 1743 else 1744 arg = 0; /* Quell compiler warning */ 1745 elem_size = elem_count = 0; /* Ditto */ 1746 } else { 1747 if (namelen != 4) 1748 return (EINVAL); 1749 op = name[0]; 1750 arg = name[1]; 1751 elem_size = name[2]; 1752 elem_count = name[3]; 1753 } 1754 1755 proclist_lock_read(); 1756 1757 pd = proclists; 1758 again: 1759 for (p = LIST_FIRST(pd->pd_list); p != NULL; p = LIST_NEXT(p, p_list)) { 1760 /* 1761 * Skip embryonic processes. 1762 */ 1763 if (p->p_stat == SIDL) 1764 continue; 1765 /* 1766 * TODO - make more efficient (see notes below). 1767 * do by session. 1768 */ 1769 switch (op) { 1770 1771 case KERN_PROC_PID: 1772 /* could do this with just a lookup */ 1773 if (p->p_pid != (pid_t)arg) 1774 continue; 1775 break; 1776 1777 case KERN_PROC_PGRP: 1778 /* could do this by traversing pgrp */ 1779 if (p->p_pgrp->pg_id != (pid_t)arg) 1780 continue; 1781 break; 1782 1783 case KERN_PROC_SESSION: 1784 if (p->p_session->s_sid != (pid_t)arg) 1785 continue; 1786 break; 1787 1788 case KERN_PROC_TTY: 1789 if (arg == (int) KERN_PROC_TTY_REVOKE) { 1790 if ((p->p_flag & P_CONTROLT) == 0 || 1791 p->p_session->s_ttyp == NULL || 1792 p->p_session->s_ttyvp != NULL) 1793 continue; 1794 } else if ((p->p_flag & P_CONTROLT) == 0 || 1795 p->p_session->s_ttyp == NULL) { 1796 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 1797 continue; 1798 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 1799 continue; 1800 break; 1801 1802 case KERN_PROC_UID: 1803 if (p->p_ucred->cr_uid != (uid_t)arg) 1804 continue; 1805 break; 1806 1807 case KERN_PROC_RUID: 1808 if (p->p_cred->p_ruid != (uid_t)arg) 1809 continue; 1810 break; 1811 1812 case KERN_PROC_GID: 1813 if (p->p_ucred->cr_gid != (uid_t)arg) 1814 continue; 1815 break; 1816 1817 case KERN_PROC_RGID: 1818 if (p->p_cred->p_rgid != (uid_t)arg) 1819 continue; 1820 break; 1821 1822 case KERN_PROC_ALL: 1823 /* allow everything */ 1824 break; 1825 1826 default: 1827 error = EINVAL; 1828 goto cleanup; 1829 } 1830 if (type == KERN_PROC) { 1831 if (buflen >= sizeof(struct kinfo_proc)) { 1832 fill_eproc(p, &eproc); 1833 error = copyout(p, &dp->kp_proc, 1834 sizeof(struct proc)); 1835 if (error) 1836 goto cleanup; 1837 error = copyout(&eproc, &dp->kp_eproc, 1838 sizeof(eproc)); 1839 if (error) 1840 goto cleanup; 1841 dp++; 1842 buflen -= sizeof(struct kinfo_proc); 1843 } 1844 needed += sizeof(struct kinfo_proc); 1845 } else { /* KERN_PROC2 */ 1846 if (buflen >= elem_size && elem_count > 0) { 1847 fill_kproc2(p, &kproc2); 1848 /* 1849 * Copy out elem_size, but not larger than 1850 * the size of a struct kinfo_proc2. 1851 */ 1852 error = copyout(&kproc2, dp2, 1853 min(sizeof(kproc2), elem_size)); 1854 if (error) 1855 goto cleanup; 1856 dp2 += elem_size; 1857 buflen -= elem_size; 1858 elem_count--; 1859 } 1860 needed += elem_size; 1861 } 1862 } 1863 pd++; 1864 if (pd->pd_list != NULL) 1865 goto again; 1866 proclist_unlock_read(); 1867 1868 if (where != NULL) { 1869 if (type == KERN_PROC) 1870 *oldlenp = (char *)dp - where; 1871 else 1872 *oldlenp = dp2 - where; 1873 if (needed > *oldlenp) 1874 return (ENOMEM); 1875 } else { 1876 needed += KERN_PROCSLOP; 1877 *oldlenp = needed; 1878 } 1879 return (0); 1880 cleanup: 1881 proclist_unlock_read(); 1882 return (error); 1883 } 1884 1885 /* 1886 * sysctl helper routine for kern.proc_args pseudo-subtree. 1887 */ 1888 static int 1889 sysctl_kern_proc_args(SYSCTLFN_ARGS) 1890 { 1891 struct ps_strings pss; 1892 struct proc *p, *up = l->l_proc; 1893 size_t len, upper_bound, xlen, i; 1894 struct uio auio; 1895 struct iovec aiov; 1896 vaddr_t argv; 1897 pid_t pid; 1898 int nargv, type, error; 1899 char *arg; 1900 char *tmp; 1901 1902 if (namelen == 1 && name[0] == CTL_QUERY) 1903 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1904 1905 if (newp != NULL || namelen != 2) 1906 return (EINVAL); 1907 pid = name[0]; 1908 type = name[1]; 1909 1910 switch (type) { 1911 case KERN_PROC_ARGV: 1912 case KERN_PROC_NARGV: 1913 case KERN_PROC_ENV: 1914 case KERN_PROC_NENV: 1915 /* ok */ 1916 break; 1917 default: 1918 return (EINVAL); 1919 } 1920 1921 /* check pid */ 1922 if ((p = pfind(pid)) == NULL) 1923 return (EINVAL); 1924 1925 /* only root or same user change look at the environment */ 1926 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 1927 if (up->p_ucred->cr_uid != 0) { 1928 if (up->p_cred->p_ruid != p->p_cred->p_ruid || 1929 up->p_cred->p_ruid != p->p_cred->p_svuid) 1930 return (EPERM); 1931 } 1932 } 1933 1934 if (oldp == NULL) { 1935 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 1936 *oldlenp = sizeof (int); 1937 else 1938 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 1939 return (0); 1940 } 1941 1942 /* 1943 * Zombies don't have a stack, so we can't read their psstrings. 1944 * System processes also don't have a user stack. 1945 */ 1946 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) 1947 return (EINVAL); 1948 1949 /* 1950 * Lock the process down in memory. 1951 */ 1952 /* XXXCDC: how should locking work here? */ 1953 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) 1954 return (EFAULT); 1955 1956 p->p_vmspace->vm_refcnt++; /* XXX */ 1957 1958 /* 1959 * Allocate a temporary buffer to hold the arguments. 1960 */ 1961 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 1962 1963 /* 1964 * Read in the ps_strings structure. 1965 */ 1966 aiov.iov_base = &pss; 1967 aiov.iov_len = sizeof(pss); 1968 auio.uio_iov = &aiov; 1969 auio.uio_iovcnt = 1; 1970 auio.uio_offset = (vaddr_t)p->p_psstr; 1971 auio.uio_resid = sizeof(pss); 1972 auio.uio_segflg = UIO_SYSSPACE; 1973 auio.uio_rw = UIO_READ; 1974 auio.uio_procp = NULL; 1975 error = uvm_io(&p->p_vmspace->vm_map, &auio); 1976 if (error) 1977 goto done; 1978 1979 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 1980 memcpy(&nargv, (char *)&pss + p->p_psnargv, sizeof(nargv)); 1981 else 1982 memcpy(&nargv, (char *)&pss + p->p_psnenv, sizeof(nargv)); 1983 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 1984 error = copyout(&nargv, oldp, sizeof(nargv)); 1985 *oldlenp = sizeof(nargv); 1986 goto done; 1987 } 1988 /* 1989 * Now read the address of the argument vector. 1990 */ 1991 switch (type) { 1992 case KERN_PROC_ARGV: 1993 /* XXX compat32 stuff here */ 1994 memcpy(&tmp, (char *)&pss + p->p_psargv, sizeof(tmp)); 1995 break; 1996 case KERN_PROC_ENV: 1997 memcpy(&tmp, (char *)&pss + p->p_psenv, sizeof(tmp)); 1998 break; 1999 default: 2000 return (EINVAL); 2001 } 2002 auio.uio_offset = (off_t)(long)tmp; 2003 aiov.iov_base = &argv; 2004 aiov.iov_len = sizeof(argv); 2005 auio.uio_iov = &aiov; 2006 auio.uio_iovcnt = 1; 2007 auio.uio_resid = sizeof(argv); 2008 auio.uio_segflg = UIO_SYSSPACE; 2009 auio.uio_rw = UIO_READ; 2010 auio.uio_procp = NULL; 2011 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2012 if (error) 2013 goto done; 2014 2015 /* 2016 * Now copy in the actual argument vector, one page at a time, 2017 * since we don't know how long the vector is (though, we do 2018 * know how many NUL-terminated strings are in the vector). 2019 */ 2020 len = 0; 2021 upper_bound = *oldlenp; 2022 for (; nargv != 0 && len < upper_bound; len += xlen) { 2023 aiov.iov_base = arg; 2024 aiov.iov_len = PAGE_SIZE; 2025 auio.uio_iov = &aiov; 2026 auio.uio_iovcnt = 1; 2027 auio.uio_offset = argv + len; 2028 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2029 auio.uio_resid = xlen; 2030 auio.uio_segflg = UIO_SYSSPACE; 2031 auio.uio_rw = UIO_READ; 2032 auio.uio_procp = NULL; 2033 error = uvm_io(&p->p_vmspace->vm_map, &auio); 2034 if (error) 2035 goto done; 2036 2037 for (i = 0; i < xlen && nargv != 0; i++) { 2038 if (arg[i] == '\0') 2039 nargv--; /* one full string */ 2040 } 2041 2042 /* 2043 * Make sure we don't copyout past the end of the user's 2044 * buffer. 2045 */ 2046 if (len + i > upper_bound) 2047 i = upper_bound - len; 2048 2049 error = copyout(arg, (char *)oldp + len, i); 2050 if (error) 2051 break; 2052 2053 if (nargv == 0) { 2054 len += i; 2055 break; 2056 } 2057 } 2058 *oldlenp = len; 2059 2060 done: 2061 uvmspace_free(p->p_vmspace); 2062 2063 free(arg, M_TEMP); 2064 return (error); 2065 } 2066 2067 /* 2068 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2069 * calculate on the fly taking into account integer overflow and the 2070 * current wired count. 2071 */ 2072 static int 2073 sysctl_hw_usermem(SYSCTLFN_ARGS) 2074 { 2075 u_int ui; 2076 u_quad_t uq; 2077 struct sysctlnode node; 2078 2079 node = *rnode; 2080 switch (rnode->sysctl_num) { 2081 case HW_USERMEM: 2082 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2083 ui = UINT_MAX; 2084 else 2085 ui *= PAGE_SIZE; 2086 node.sysctl_data = &ui; 2087 break; 2088 case HW_USERMEM64: 2089 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2090 node.sysctl_data = &uq; 2091 break; 2092 default: 2093 return (EINVAL); 2094 } 2095 2096 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2097 } 2098 2099 /* 2100 * sysctl helper routine for kern.cnmagic node. pulls the old value 2101 * out, encoded, and stuffs the new value in for decoding. 2102 */ 2103 static int 2104 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2105 { 2106 char magic[CNS_LEN]; 2107 int error; 2108 struct sysctlnode node; 2109 2110 if (oldp) 2111 cn_get_magic(magic, CNS_LEN); 2112 node = *rnode; 2113 node.sysctl_data = &magic[0]; 2114 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2115 if (error || newp == NULL) 2116 return (error); 2117 2118 return (cn_set_magic(magic)); 2119 } 2120 2121 static int 2122 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2123 { 2124 int ncpu; 2125 struct sysctlnode node; 2126 2127 ncpu = sysctl_ncpus(); 2128 node = *rnode; 2129 node.sysctl_data = &ncpu; 2130 2131 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2132 } 2133 2134 2135 /* 2136 * ******************************************************************** 2137 * section 3: public helper routines that are used for more than one 2138 * node 2139 * ******************************************************************** 2140 */ 2141 2142 /* 2143 * sysctl helper routine for the kern.root_device node and some ports' 2144 * machdep.root_device nodes. 2145 */ 2146 int 2147 sysctl_root_device(SYSCTLFN_ARGS) 2148 { 2149 struct sysctlnode node; 2150 2151 node = *rnode; 2152 node.sysctl_data = root_device->dv_xname; 2153 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2154 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2155 } 2156 2157 /* 2158 * sysctl helper routine for kern.consdev, dependent on the current 2159 * state of the console. also used for machdep.console_device on some 2160 * ports. 2161 */ 2162 int 2163 sysctl_consdev(SYSCTLFN_ARGS) 2164 { 2165 dev_t consdev; 2166 struct sysctlnode node; 2167 2168 if (cn_tab != NULL) 2169 consdev = cn_tab->cn_dev; 2170 else 2171 consdev = NODEV; 2172 node = *rnode; 2173 node.sysctl_data = &consdev; 2174 node.sysctl_size = sizeof(consdev); 2175 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2176 } 2177 2178 /* 2179 * ******************************************************************** 2180 * section 4: support for some helpers 2181 * ******************************************************************** 2182 */ 2183 2184 /* 2185 * Fill in a kinfo_proc2 structure for the specified process. 2186 */ 2187 static void 2188 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2189 { 2190 struct tty *tp; 2191 struct lwp *l; 2192 struct timeval ut, st; 2193 2194 memset(ki, 0, sizeof(*ki)); 2195 2196 ki->p_paddr = PTRTOUINT64(p); 2197 ki->p_fd = PTRTOUINT64(p->p_fd); 2198 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2199 ki->p_stats = PTRTOUINT64(p->p_stats); 2200 ki->p_limit = PTRTOUINT64(p->p_limit); 2201 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2202 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2203 ki->p_sess = PTRTOUINT64(p->p_session); 2204 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2205 ki->p_ru = PTRTOUINT64(p->p_ru); 2206 2207 ki->p_eflag = 0; 2208 ki->p_exitsig = p->p_exitsig; 2209 ki->p_flag = p->p_flag; 2210 2211 ki->p_pid = p->p_pid; 2212 if (p->p_pptr) 2213 ki->p_ppid = p->p_pptr->p_pid; 2214 else 2215 ki->p_ppid = 0; 2216 ki->p_sid = p->p_session->s_sid; 2217 ki->p__pgid = p->p_pgrp->pg_id; 2218 2219 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2220 2221 ki->p_uid = p->p_ucred->cr_uid; 2222 ki->p_ruid = p->p_cred->p_ruid; 2223 ki->p_gid = p->p_ucred->cr_gid; 2224 ki->p_rgid = p->p_cred->p_rgid; 2225 ki->p_svuid = p->p_cred->p_svuid; 2226 ki->p_svgid = p->p_cred->p_svgid; 2227 2228 memcpy(ki->p_groups, p->p_cred->pc_ucred->cr_groups, 2229 min(sizeof(ki->p_groups), sizeof(p->p_cred->pc_ucred->cr_groups))); 2230 ki->p_ngroups = p->p_cred->pc_ucred->cr_ngroups; 2231 2232 ki->p_jobc = p->p_pgrp->pg_jobc; 2233 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2234 ki->p_tdev = tp->t_dev; 2235 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2236 ki->p_tsess = PTRTOUINT64(tp->t_session); 2237 } else { 2238 ki->p_tdev = NODEV; 2239 } 2240 2241 ki->p_estcpu = p->p_estcpu; 2242 ki->p_rtime_sec = p->p_rtime.tv_sec; 2243 ki->p_rtime_usec = p->p_rtime.tv_usec; 2244 ki->p_cpticks = p->p_cpticks; 2245 ki->p_pctcpu = p->p_pctcpu; 2246 2247 ki->p_uticks = p->p_uticks; 2248 ki->p_sticks = p->p_sticks; 2249 ki->p_iticks = p->p_iticks; 2250 2251 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2252 ki->p_traceflag = p->p_traceflag; 2253 2254 2255 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2256 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2257 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2258 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2259 2260 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2261 ki->p_realstat = p->p_stat; 2262 ki->p_nice = p->p_nice; 2263 2264 ki->p_xstat = p->p_xstat; 2265 ki->p_acflag = p->p_acflag; 2266 2267 strncpy(ki->p_comm, p->p_comm, 2268 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2269 2270 strncpy(ki->p_login, p->p_session->s_login, 2271 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2272 2273 ki->p_nlwps = p->p_nlwps; 2274 ki->p_nrlwps = p->p_nrlwps; 2275 ki->p_realflag = p->p_flag; 2276 2277 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2278 ki->p_vm_rssize = 0; 2279 ki->p_vm_tsize = 0; 2280 ki->p_vm_dsize = 0; 2281 ki->p_vm_ssize = 0; 2282 l = NULL; 2283 } else { 2284 struct vmspace *vm = p->p_vmspace; 2285 2286 ki->p_vm_rssize = vm_resident_count(vm); 2287 ki->p_vm_tsize = vm->vm_tsize; 2288 ki->p_vm_dsize = vm->vm_dsize; 2289 ki->p_vm_ssize = vm->vm_ssize; 2290 2291 /* Pick a "representative" LWP */ 2292 l = proc_representative_lwp(p); 2293 ki->p_forw = PTRTOUINT64(l->l_forw); 2294 ki->p_back = PTRTOUINT64(l->l_back); 2295 ki->p_addr = PTRTOUINT64(l->l_addr); 2296 ki->p_stat = l->l_stat; 2297 ki->p_flag |= l->l_flag; 2298 ki->p_swtime = l->l_swtime; 2299 ki->p_slptime = l->l_slptime; 2300 if (l->l_stat == LSONPROC) { 2301 KDASSERT(l->l_cpu != NULL); 2302 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2303 } else 2304 ki->p_schedflags = 0; 2305 ki->p_holdcnt = l->l_holdcnt; 2306 ki->p_priority = l->l_priority; 2307 ki->p_usrpri = l->l_usrpri; 2308 if (l->l_wmesg) 2309 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2310 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2311 2312 } 2313 2314 if (p->p_session->s_ttyvp) 2315 ki->p_eflag |= EPROC_CTTY; 2316 if (SESS_LEADER(p)) 2317 ki->p_eflag |= EPROC_SLEADER; 2318 2319 /* XXX Is this double check necessary? */ 2320 if (P_ZOMBIE(p)) { 2321 ki->p_uvalid = 0; 2322 } else { 2323 ki->p_uvalid = 1; 2324 2325 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 2326 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 2327 2328 calcru(p, &ut, &st, 0); 2329 ki->p_uutime_sec = ut.tv_sec; 2330 ki->p_uutime_usec = ut.tv_usec; 2331 ki->p_ustime_sec = st.tv_sec; 2332 ki->p_ustime_usec = st.tv_usec; 2333 2334 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 2335 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 2336 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 2337 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 2338 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 2339 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 2340 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 2341 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 2342 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 2343 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 2344 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 2345 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 2346 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 2347 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 2348 2349 timeradd(&p->p_stats->p_cru.ru_utime, 2350 &p->p_stats->p_cru.ru_stime, &ut); 2351 ki->p_uctime_sec = ut.tv_sec; 2352 ki->p_uctime_usec = ut.tv_usec; 2353 } 2354 #ifdef MULTIPROCESSOR 2355 if (l && l->l_cpu != NULL) 2356 ki->p_cpuid = l->l_cpu->ci_cpuid; 2357 else 2358 #endif 2359 ki->p_cpuid = KI_NOCPU; 2360 } 2361 2362 /* 2363 * Fill in a kinfo_lwp structure for the specified lwp. 2364 */ 2365 static void 2366 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 2367 { 2368 2369 kl->l_forw = PTRTOUINT64(l->l_forw); 2370 kl->l_back = PTRTOUINT64(l->l_back); 2371 kl->l_laddr = PTRTOUINT64(l); 2372 kl->l_addr = PTRTOUINT64(l->l_addr); 2373 kl->l_stat = l->l_stat; 2374 kl->l_lid = l->l_lid; 2375 kl->l_flag = l->l_flag; 2376 2377 kl->l_swtime = l->l_swtime; 2378 kl->l_slptime = l->l_slptime; 2379 if (l->l_stat == LSONPROC) { 2380 KDASSERT(l->l_cpu != NULL); 2381 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2382 } else 2383 kl->l_schedflags = 0; 2384 kl->l_holdcnt = l->l_holdcnt; 2385 kl->l_priority = l->l_priority; 2386 kl->l_usrpri = l->l_usrpri; 2387 if (l->l_wmesg) 2388 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 2389 kl->l_wchan = PTRTOUINT64(l->l_wchan); 2390 #ifdef MULTIPROCESSOR 2391 if (l->l_cpu != NULL) 2392 kl->l_cpuid = l->l_cpu->ci_cpuid; 2393 else 2394 #endif 2395 kl->l_cpuid = KI_NOCPU; 2396 } 2397 2398 /* 2399 * Fill in an eproc structure for the specified process. 2400 */ 2401 void 2402 fill_eproc(struct proc *p, struct eproc *ep) 2403 { 2404 struct tty *tp; 2405 struct lwp *l; 2406 2407 ep->e_paddr = p; 2408 ep->e_sess = p->p_session; 2409 ep->e_pcred = *p->p_cred; 2410 ep->e_ucred = *p->p_ucred; 2411 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2412 ep->e_vm.vm_rssize = 0; 2413 ep->e_vm.vm_tsize = 0; 2414 ep->e_vm.vm_dsize = 0; 2415 ep->e_vm.vm_ssize = 0; 2416 /* ep->e_vm.vm_pmap = XXX; */ 2417 } else { 2418 struct vmspace *vm = p->p_vmspace; 2419 2420 ep->e_vm.vm_rssize = vm_resident_count(vm); 2421 ep->e_vm.vm_tsize = vm->vm_tsize; 2422 ep->e_vm.vm_dsize = vm->vm_dsize; 2423 ep->e_vm.vm_ssize = vm->vm_ssize; 2424 2425 /* Pick a "representative" LWP */ 2426 l = proc_representative_lwp(p); 2427 2428 if (l->l_wmesg) 2429 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 2430 } 2431 if (p->p_pptr) 2432 ep->e_ppid = p->p_pptr->p_pid; 2433 else 2434 ep->e_ppid = 0; 2435 ep->e_pgid = p->p_pgrp->pg_id; 2436 ep->e_sid = ep->e_sess->s_sid; 2437 ep->e_jobc = p->p_pgrp->pg_jobc; 2438 if ((p->p_flag & P_CONTROLT) && 2439 (tp = ep->e_sess->s_ttyp)) { 2440 ep->e_tdev = tp->t_dev; 2441 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2442 ep->e_tsess = tp->t_session; 2443 } else 2444 ep->e_tdev = NODEV; 2445 2446 ep->e_xsize = ep->e_xrssize = 0; 2447 ep->e_xccount = ep->e_xswrss = 0; 2448 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 2449 if (SESS_LEADER(p)) 2450 ep->e_flag |= EPROC_SLEADER; 2451 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 2452 } 2453
Indexes created Thu Sep 25 06:09:39 GMT 2025