init_sysctl.c revision 1.87
1 /* $NetBSD: init_sysctl.c,v 1.87 2006/09/24 05:46:14 dogcow 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 1.87 2006/09/24 05:46:14 dogcow Exp $"); 41 42 #include "opt_sysv.h" 43 #include "opt_multiprocessor.h" 44 #include "opt_posix.h" 45 #include "opt_compat_netbsd32.h" 46 #include "opt_ktrace.h" 47 #include "veriexec.h" 48 #include "pty.h" 49 #include "rnd.h" 50 51 #include <sys/types.h> 52 #include <sys/param.h> 53 #include <sys/sysctl.h> 54 #include <sys/errno.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/unistd.h> 58 #include <sys/disklabel.h> 59 #include <sys/rnd.h> 60 #include <sys/vnode.h> 61 #include <sys/mount.h> 62 #include <sys/namei.h> 63 #include <sys/msgbuf.h> 64 #include <dev/cons.h> 65 #include <sys/socketvar.h> 66 #include <sys/file.h> 67 #include <sys/filedesc.h> 68 #include <sys/tty.h> 69 #include <sys/malloc.h> 70 #include <sys/resource.h> 71 #include <sys/resourcevar.h> 72 #include <sys/exec.h> 73 #include <sys/conf.h> 74 #include <sys/device.h> 75 #if NVERIEXEC > 0 76 #define VERIEXEC_NEED_NODE 77 #include <sys/verified_exec.h> 78 #endif /* NVERIEXEC > 0 */ 79 #include <sys/stat.h> 80 #include <sys/kauth.h> 81 #ifdef KTRACE 82 #include <sys/ktrace.h> 83 #endif 84 85 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 86 #include <sys/ipc.h> 87 #endif 88 #ifdef SYSVMSG 89 #include <sys/msg.h> 90 #endif 91 #ifdef SYSVSEM 92 #include <sys/sem.h> 93 #endif 94 #ifdef SYSVSHM 95 #include <sys/shm.h> 96 #endif 97 98 #ifdef COMPAT_NETBSD32 99 #include <compat/netbsd32/netbsd32.h> 100 #endif 101 102 #include <machine/cpu.h> 103 104 /* XXX this should not be here */ 105 int security_setidcore_dump; 106 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 107 uid_t security_setidcore_owner = 0; 108 gid_t security_setidcore_group = 0; 109 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 110 111 /* 112 * try over estimating by 5 procs/lwps 113 */ 114 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 115 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 116 117 #ifdef KTRACE 118 int dcopyout(struct lwp *, const void *, void *, size_t); 119 120 int 121 dcopyout(l, kaddr, uaddr, len) 122 struct lwp *l; 123 const void *kaddr; 124 void *uaddr; 125 size_t len; 126 { 127 int error; 128 129 error = copyout(kaddr, uaddr, len); 130 if (!error && KTRPOINT(l->l_proc, KTR_MIB)) { 131 struct iovec iov; 132 133 iov.iov_base = uaddr; 134 iov.iov_len = len; 135 ktrgenio(l, -1, UIO_READ, &iov, len, 0); 136 } 137 return error; 138 } 139 #else /* !KTRACE */ 140 #define dcopyout(l, kaddr, uaddr, len) copyout(kaddr, uaddr, len) 141 #endif /* KTRACE */ 142 #ifndef MULTIPROCESSOR 143 #define sysctl_ncpus() (1) 144 #else /* MULTIPROCESSOR */ 145 #ifndef CPU_INFO_FOREACH 146 #define CPU_INFO_ITERATOR int 147 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 148 #endif 149 static int 150 sysctl_ncpus(void) 151 { 152 struct cpu_info *ci; 153 CPU_INFO_ITERATOR cii; 154 155 int ncpus = 0; 156 for (CPU_INFO_FOREACH(cii, ci)) 157 ncpus++; 158 return (ncpus); 159 } 160 #endif /* MULTIPROCESSOR */ 161 162 #ifdef DIAGNOSTIC 163 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 164 #endif 165 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 166 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 167 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 168 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 169 static int sysctl_setlen(SYSCTLFN_PROTO); 170 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 171 static int sysctl_kern_file(SYSCTLFN_PROTO); 172 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 173 static int sysctl_msgbuf(SYSCTLFN_PROTO); 174 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 175 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 176 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 177 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 178 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 179 #if NPTY > 0 180 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 181 #endif /* NPTY > 0 */ 182 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 183 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 184 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 185 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 186 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 187 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 188 static int sysctl_kern_file2(SYSCTLFN_PROTO); 189 #if NVERIEXEC > 0 190 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 191 #endif /* NVERIEXEC > 0 */ 192 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 193 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 194 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 195 static int sysctl_doeproc(SYSCTLFN_PROTO); 196 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 197 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 198 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 199 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 200 201 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 202 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 203 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 204 int); 205 206 /* 207 * ******************************************************************** 208 * section 1: setup routines 209 * ******************************************************************** 210 * these functions are stuffed into a link set for sysctl setup 211 * functions. they're never called or referenced from anywhere else. 212 * ******************************************************************** 213 */ 214 215 /* 216 * sets up the base nodes... 217 */ 218 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 219 { 220 221 sysctl_createv(clog, 0, NULL, NULL, 222 CTLFLAG_PERMANENT, 223 CTLTYPE_NODE, "kern", 224 SYSCTL_DESCR("High kernel"), 225 NULL, 0, NULL, 0, 226 CTL_KERN, CTL_EOL); 227 sysctl_createv(clog, 0, NULL, NULL, 228 CTLFLAG_PERMANENT, 229 CTLTYPE_NODE, "vm", 230 SYSCTL_DESCR("Virtual memory"), 231 NULL, 0, NULL, 0, 232 CTL_VM, CTL_EOL); 233 sysctl_createv(clog, 0, NULL, NULL, 234 CTLFLAG_PERMANENT, 235 CTLTYPE_NODE, "vfs", 236 SYSCTL_DESCR("Filesystem"), 237 NULL, 0, NULL, 0, 238 CTL_VFS, CTL_EOL); 239 sysctl_createv(clog, 0, NULL, NULL, 240 CTLFLAG_PERMANENT, 241 CTLTYPE_NODE, "net", 242 SYSCTL_DESCR("Networking"), 243 NULL, 0, NULL, 0, 244 CTL_NET, CTL_EOL); 245 sysctl_createv(clog, 0, NULL, NULL, 246 CTLFLAG_PERMANENT, 247 CTLTYPE_NODE, "debug", 248 SYSCTL_DESCR("Debugging"), 249 NULL, 0, NULL, 0, 250 CTL_DEBUG, CTL_EOL); 251 sysctl_createv(clog, 0, NULL, NULL, 252 CTLFLAG_PERMANENT, 253 CTLTYPE_NODE, "hw", 254 SYSCTL_DESCR("Generic CPU, I/O"), 255 NULL, 0, NULL, 0, 256 CTL_HW, CTL_EOL); 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT, 259 CTLTYPE_NODE, "machdep", 260 SYSCTL_DESCR("Machine dependent"), 261 NULL, 0, NULL, 0, 262 CTL_MACHDEP, CTL_EOL); 263 /* 264 * this node is inserted so that the sysctl nodes in libc can 265 * operate. 266 */ 267 sysctl_createv(clog, 0, NULL, NULL, 268 CTLFLAG_PERMANENT, 269 CTLTYPE_NODE, "user", 270 SYSCTL_DESCR("User-level"), 271 NULL, 0, NULL, 0, 272 CTL_USER, CTL_EOL); 273 sysctl_createv(clog, 0, NULL, NULL, 274 CTLFLAG_PERMANENT, 275 CTLTYPE_NODE, "ddb", 276 SYSCTL_DESCR("In-kernel debugger"), 277 NULL, 0, NULL, 0, 278 CTL_DDB, CTL_EOL); 279 sysctl_createv(clog, 0, NULL, NULL, 280 CTLFLAG_PERMANENT, 281 CTLTYPE_NODE, "proc", 282 SYSCTL_DESCR("Per-process"), 283 NULL, 0, NULL, 0, 284 CTL_PROC, CTL_EOL); 285 sysctl_createv(clog, 0, NULL, NULL, 286 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 287 CTLTYPE_NODE, "vendor", 288 SYSCTL_DESCR("Vendor specific"), 289 NULL, 0, NULL, 0, 290 CTL_VENDOR, CTL_EOL); 291 sysctl_createv(clog, 0, NULL, NULL, 292 CTLFLAG_PERMANENT, 293 CTLTYPE_NODE, "emul", 294 SYSCTL_DESCR("Emulation settings"), 295 NULL, 0, NULL, 0, 296 CTL_EMUL, CTL_EOL); 297 sysctl_createv(clog, 0, NULL, NULL, 298 CTLFLAG_PERMANENT, 299 CTLTYPE_NODE, "security", 300 SYSCTL_DESCR("Security"), 301 NULL, 0, NULL, 0, 302 CTL_SECURITY, CTL_EOL); 303 } 304 305 /* 306 * this setup routine is a replacement for kern_sysctl() 307 */ 308 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 309 { 310 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 311 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 312 extern int dumponpanic; /* defined in kern/subr_prf.c */ 313 const struct sysctlnode *rnode; 314 315 sysctl_createv(clog, 0, NULL, NULL, 316 CTLFLAG_PERMANENT, 317 CTLTYPE_NODE, "kern", NULL, 318 NULL, 0, NULL, 0, 319 CTL_KERN, CTL_EOL); 320 321 sysctl_createv(clog, 0, NULL, NULL, 322 CTLFLAG_PERMANENT, 323 CTLTYPE_STRING, "ostype", 324 SYSCTL_DESCR("Operating system type"), 325 NULL, 0, &ostype, 0, 326 CTL_KERN, KERN_OSTYPE, CTL_EOL); 327 sysctl_createv(clog, 0, NULL, NULL, 328 CTLFLAG_PERMANENT, 329 CTLTYPE_STRING, "osrelease", 330 SYSCTL_DESCR("Operating system release"), 331 NULL, 0, &osrelease, 0, 332 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 333 sysctl_createv(clog, 0, NULL, NULL, 334 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 335 CTLTYPE_INT, "osrevision", 336 SYSCTL_DESCR("Operating system revision"), 337 NULL, __NetBSD_Version__, NULL, 0, 338 CTL_KERN, KERN_OSREV, CTL_EOL); 339 sysctl_createv(clog, 0, NULL, NULL, 340 CTLFLAG_PERMANENT, 341 CTLTYPE_STRING, "version", 342 SYSCTL_DESCR("Kernel version"), 343 NULL, 0, &version, 0, 344 CTL_KERN, KERN_VERSION, CTL_EOL); 345 sysctl_createv(clog, 0, NULL, NULL, 346 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 347 CTLTYPE_INT, "maxvnodes", 348 SYSCTL_DESCR("Maximum number of vnodes"), 349 sysctl_kern_maxvnodes, 0, NULL, 0, 350 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 351 sysctl_createv(clog, 0, NULL, NULL, 352 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 353 CTLTYPE_INT, "maxproc", 354 SYSCTL_DESCR("Maximum number of simultaneous processes"), 355 sysctl_kern_maxproc, 0, NULL, 0, 356 CTL_KERN, KERN_MAXPROC, CTL_EOL); 357 sysctl_createv(clog, 0, NULL, NULL, 358 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 359 CTLTYPE_INT, "maxfiles", 360 SYSCTL_DESCR("Maximum number of open files"), 361 NULL, 0, &maxfiles, 0, 362 CTL_KERN, KERN_MAXFILES, CTL_EOL); 363 sysctl_createv(clog, 0, NULL, NULL, 364 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 365 CTLTYPE_INT, "argmax", 366 SYSCTL_DESCR("Maximum number of bytes of arguments to " 367 "execve(2)"), 368 NULL, ARG_MAX, NULL, 0, 369 CTL_KERN, KERN_ARGMAX, CTL_EOL); 370 sysctl_createv(clog, 0, NULL, NULL, 371 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 372 CTLTYPE_STRING, "hostname", 373 SYSCTL_DESCR("System hostname"), 374 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 375 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 376 sysctl_createv(clog, 0, NULL, NULL, 377 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 378 CTLTYPE_INT, "hostid", 379 SYSCTL_DESCR("System host ID number"), 380 sysctl_kern_hostid, 0, NULL, 0, 381 CTL_KERN, KERN_HOSTID, CTL_EOL); 382 sysctl_createv(clog, 0, NULL, NULL, 383 CTLFLAG_PERMANENT, 384 CTLTYPE_STRUCT, "clockrate", 385 SYSCTL_DESCR("Kernel clock rates"), 386 sysctl_kern_clockrate, 0, NULL, 387 sizeof(struct clockinfo), 388 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 389 sysctl_createv(clog, 0, NULL, NULL, 390 CTLFLAG_PERMANENT, 391 CTLTYPE_INT, "hardclock_ticks", 392 SYSCTL_DESCR("Number of hardclock ticks"), 393 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 394 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT, 397 CTLTYPE_STRUCT, "vnode", 398 SYSCTL_DESCR("System vnode table"), 399 sysctl_kern_vnode, 0, NULL, 0, 400 CTL_KERN, KERN_VNODE, CTL_EOL); 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT, 403 CTLTYPE_STRUCT, "file", 404 SYSCTL_DESCR("System open file table"), 405 sysctl_kern_file, 0, NULL, 0, 406 CTL_KERN, KERN_FILE, CTL_EOL); 407 #ifndef GPROF 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT, 410 CTLTYPE_NODE, "profiling", 411 SYSCTL_DESCR("Profiling information (not available)"), 412 sysctl_notavail, 0, NULL, 0, 413 CTL_KERN, KERN_PROF, CTL_EOL); 414 #endif 415 sysctl_createv(clog, 0, NULL, NULL, 416 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 417 CTLTYPE_INT, "posix1version", 418 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 419 "with which the operating system attempts " 420 "to comply"), 421 NULL, _POSIX_VERSION, NULL, 0, 422 CTL_KERN, KERN_POSIX1, CTL_EOL); 423 sysctl_createv(clog, 0, NULL, NULL, 424 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 425 CTLTYPE_INT, "ngroups", 426 SYSCTL_DESCR("Maximum number of supplemental groups"), 427 NULL, NGROUPS_MAX, NULL, 0, 428 CTL_KERN, KERN_NGROUPS, CTL_EOL); 429 sysctl_createv(clog, 0, NULL, NULL, 430 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 431 CTLTYPE_INT, "job_control", 432 SYSCTL_DESCR("Whether job control is available"), 433 NULL, 1, NULL, 0, 434 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 435 sysctl_createv(clog, 0, NULL, NULL, 436 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 437 CTLTYPE_INT, "saved_ids", 438 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 439 "available"), NULL, 440 #ifdef _POSIX_SAVED_IDS 441 1, 442 #else /* _POSIX_SAVED_IDS */ 443 0, 444 #endif /* _POSIX_SAVED_IDS */ 445 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 446 sysctl_createv(clog, 0, NULL, NULL, 447 CTLFLAG_PERMANENT, 448 CTLTYPE_STRUCT, "boottime", 449 SYSCTL_DESCR("System boot time"), 450 NULL, 0, &boottime, sizeof(boottime), 451 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 452 sysctl_createv(clog, 0, NULL, NULL, 453 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 454 CTLTYPE_STRING, "domainname", 455 SYSCTL_DESCR("YP domain name"), 456 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 457 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 458 sysctl_createv(clog, 0, NULL, NULL, 459 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 460 CTLTYPE_INT, "maxpartitions", 461 SYSCTL_DESCR("Maximum number of partitions allowed per " 462 "disk"), 463 NULL, MAXPARTITIONS, NULL, 0, 464 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 465 sysctl_createv(clog, 0, NULL, NULL, 466 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 467 CTLTYPE_INT, "rawpartition", 468 SYSCTL_DESCR("Raw partition of a disk"), 469 NULL, RAW_PART, NULL, 0, 470 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 471 sysctl_createv(clog, 0, NULL, NULL, 472 CTLFLAG_PERMANENT, 473 CTLTYPE_STRUCT, "timex", NULL, 474 sysctl_notavail, 0, NULL, 0, 475 CTL_KERN, KERN_TIMEX, CTL_EOL); 476 sysctl_createv(clog, 0, NULL, NULL, 477 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 478 CTLTYPE_INT, "autonicetime", 479 SYSCTL_DESCR("CPU clock seconds before non-root " 480 "process priority is lowered"), 481 sysctl_kern_autonice, 0, &autonicetime, 0, 482 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 483 sysctl_createv(clog, 0, NULL, NULL, 484 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 485 CTLTYPE_INT, "autoniceval", 486 SYSCTL_DESCR("Automatic reniced non-root process " 487 "priority"), 488 sysctl_kern_autonice, 0, &autoniceval, 0, 489 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 490 sysctl_createv(clog, 0, NULL, NULL, 491 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 492 CTLTYPE_INT, "rtc_offset", 493 SYSCTL_DESCR("Offset of real time clock from UTC in " 494 "minutes"), 495 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 496 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 497 sysctl_createv(clog, 0, NULL, NULL, 498 CTLFLAG_PERMANENT, 499 CTLTYPE_STRING, "root_device", 500 SYSCTL_DESCR("Name of the root device"), 501 sysctl_root_device, 0, NULL, 0, 502 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 503 sysctl_createv(clog, 0, NULL, NULL, 504 CTLFLAG_PERMANENT, 505 CTLTYPE_INT, "msgbufsize", 506 SYSCTL_DESCR("Size of the kernel message buffer"), 507 sysctl_msgbuf, 0, NULL, 0, 508 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 509 sysctl_createv(clog, 0, NULL, NULL, 510 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 511 CTLTYPE_INT, "fsync", 512 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 513 "Synchronization Option is available on " 514 "this system"), 515 NULL, 1, NULL, 0, 516 CTL_KERN, KERN_FSYNC, CTL_EOL); 517 sysctl_createv(clog, 0, NULL, NULL, 518 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 519 CTLTYPE_INT, "sysvmsg", 520 SYSCTL_DESCR("System V style message support available"), 521 NULL, 522 #ifdef SYSVMSG 523 1, 524 #else /* SYSVMSG */ 525 0, 526 #endif /* SYSVMSG */ 527 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 528 sysctl_createv(clog, 0, NULL, NULL, 529 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 530 CTLTYPE_INT, "sysvsem", 531 SYSCTL_DESCR("System V style semaphore support " 532 "available"), NULL, 533 #ifdef SYSVSEM 534 1, 535 #else /* SYSVSEM */ 536 0, 537 #endif /* SYSVSEM */ 538 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 539 sysctl_createv(clog, 0, NULL, NULL, 540 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 541 CTLTYPE_INT, "sysvshm", 542 SYSCTL_DESCR("System V style shared memory support " 543 "available"), NULL, 544 #ifdef SYSVSHM 545 1, 546 #else /* SYSVSHM */ 547 0, 548 #endif /* SYSVSHM */ 549 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "synchronized_io", 553 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 554 "I/O Option is available on this system"), 555 NULL, 1, NULL, 0, 556 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 557 sysctl_createv(clog, 0, NULL, NULL, 558 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 559 CTLTYPE_INT, "iov_max", 560 SYSCTL_DESCR("Maximum number of iovec structures per " 561 "process"), 562 NULL, IOV_MAX, NULL, 0, 563 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 564 sysctl_createv(clog, 0, NULL, NULL, 565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 566 CTLTYPE_INT, "mapped_files", 567 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 568 "Files Option is available on this system"), 569 NULL, 1, NULL, 0, 570 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 571 sysctl_createv(clog, 0, NULL, NULL, 572 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 573 CTLTYPE_INT, "memlock", 574 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 575 "Locking Option is available on this " 576 "system"), 577 NULL, 1, NULL, 0, 578 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 581 CTLTYPE_INT, "memlock_range", 582 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 583 "Locking Option is available on this " 584 "system"), 585 NULL, 1, NULL, 0, 586 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 587 sysctl_createv(clog, 0, NULL, NULL, 588 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 589 CTLTYPE_INT, "memory_protection", 590 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 591 "Protection Option is available on this " 592 "system"), 593 NULL, 1, NULL, 0, 594 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 595 sysctl_createv(clog, 0, NULL, NULL, 596 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 597 CTLTYPE_INT, "login_name_max", 598 SYSCTL_DESCR("Maximum login name length"), 599 NULL, LOGIN_NAME_MAX, NULL, 0, 600 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 601 sysctl_createv(clog, 0, NULL, NULL, 602 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 603 CTLTYPE_STRING, "defcorename", 604 SYSCTL_DESCR("Default core file name"), 605 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 606 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 607 sysctl_createv(clog, 0, NULL, NULL, 608 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 609 CTLTYPE_INT, "logsigexit", 610 SYSCTL_DESCR("Log process exit when caused by signals"), 611 NULL, 0, &kern_logsigexit, 0, 612 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 613 sysctl_createv(clog, 0, NULL, NULL, 614 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 615 CTLTYPE_INT, "fscale", 616 SYSCTL_DESCR("Kernel fixed-point scale factor"), 617 NULL, FSCALE, NULL, 0, 618 CTL_KERN, KERN_FSCALE, CTL_EOL); 619 sysctl_createv(clog, 0, NULL, NULL, 620 CTLFLAG_PERMANENT, 621 CTLTYPE_INT, "ccpu", 622 SYSCTL_DESCR("Scheduler exponential decay value"), 623 NULL, 0, &ccpu, 0, 624 CTL_KERN, KERN_CCPU, CTL_EOL); 625 sysctl_createv(clog, 0, NULL, NULL, 626 CTLFLAG_PERMANENT, 627 CTLTYPE_STRUCT, "cp_time", 628 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 629 sysctl_kern_cptime, 0, NULL, 0, 630 CTL_KERN, KERN_CP_TIME, CTL_EOL); 631 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 632 sysctl_createv(clog, 0, NULL, NULL, 633 CTLFLAG_PERMANENT, 634 CTLTYPE_STRUCT, "sysvipc_info", 635 SYSCTL_DESCR("System V style IPC information"), 636 sysctl_kern_sysvipc, 0, NULL, 0, 637 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 638 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 639 sysctl_createv(clog, 0, NULL, NULL, 640 CTLFLAG_PERMANENT, 641 CTLTYPE_INT, "msgbuf", 642 SYSCTL_DESCR("Kernel message buffer"), 643 sysctl_msgbuf, 0, NULL, 0, 644 CTL_KERN, KERN_MSGBUF, CTL_EOL); 645 sysctl_createv(clog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT, 647 CTLTYPE_STRUCT, "consdev", 648 SYSCTL_DESCR("Console device"), 649 sysctl_consdev, 0, NULL, sizeof(dev_t), 650 CTL_KERN, KERN_CONSDEV, CTL_EOL); 651 #if NPTY > 0 652 sysctl_createv(clog, 0, NULL, NULL, 653 CTLFLAG_PERMANENT, 654 CTLTYPE_INT, "maxptys", 655 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 656 sysctl_kern_maxptys, 0, NULL, 0, 657 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 658 #endif /* NPTY > 0 */ 659 sysctl_createv(clog, 0, NULL, NULL, 660 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 661 CTLTYPE_INT, "maxphys", 662 SYSCTL_DESCR("Maximum raw I/O transfer size"), 663 NULL, MAXPHYS, NULL, 0, 664 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 665 sysctl_createv(clog, 0, NULL, NULL, 666 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 667 CTLTYPE_INT, "sbmax", 668 SYSCTL_DESCR("Maximum socket buffer size"), 669 sysctl_kern_sbmax, 0, NULL, 0, 670 CTL_KERN, KERN_SBMAX, CTL_EOL); 671 sysctl_createv(clog, 0, NULL, NULL, 672 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 673 CTLTYPE_INT, "monotonic_clock", 674 SYSCTL_DESCR("Implementation version of the POSIX " 675 "1003.1b Monotonic Clock Option"), 676 /* XXX _POSIX_VERSION */ 677 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 678 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 679 sysctl_createv(clog, 0, NULL, NULL, 680 CTLFLAG_PERMANENT, 681 CTLTYPE_INT, "urandom", 682 SYSCTL_DESCR("Random integer value"), 683 sysctl_kern_urnd, 0, NULL, 0, 684 CTL_KERN, KERN_URND, CTL_EOL); 685 sysctl_createv(clog, 0, NULL, NULL, 686 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 687 CTLTYPE_INT, "labelsector", 688 SYSCTL_DESCR("Sector number containing the disklabel"), 689 NULL, LABELSECTOR, NULL, 0, 690 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 691 sysctl_createv(clog, 0, NULL, NULL, 692 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 693 CTLTYPE_INT, "labeloffset", 694 SYSCTL_DESCR("Offset of the disklabel within the " 695 "sector"), 696 NULL, LABELOFFSET, NULL, 0, 697 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 698 sysctl_createv(clog, 0, NULL, NULL, 699 CTLFLAG_PERMANENT, 700 CTLTYPE_NODE, "lwp", 701 SYSCTL_DESCR("System-wide LWP information"), 702 sysctl_kern_lwp, 0, NULL, 0, 703 CTL_KERN, KERN_LWP, CTL_EOL); 704 sysctl_createv(clog, 0, NULL, NULL, 705 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 706 CTLTYPE_INT, "forkfsleep", 707 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 708 "to process limits"), 709 sysctl_kern_forkfsleep, 0, NULL, 0, 710 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 711 sysctl_createv(clog, 0, NULL, NULL, 712 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 713 CTLTYPE_INT, "posix_threads", 714 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 715 "Threads option to which the system " 716 "attempts to conform"), 717 /* XXX _POSIX_VERSION */ 718 NULL, _POSIX_THREADS, NULL, 0, 719 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 720 sysctl_createv(clog, 0, NULL, NULL, 721 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 722 CTLTYPE_INT, "posix_semaphores", 723 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 724 "Semaphores option to which the system " 725 "attempts to conform"), NULL, 726 #ifdef P1003_1B_SEMAPHORE 727 200112, 728 #else /* P1003_1B_SEMAPHORE */ 729 0, 730 #endif /* P1003_1B_SEMAPHORE */ 731 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 732 sysctl_createv(clog, 0, NULL, NULL, 733 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 734 CTLTYPE_INT, "posix_barriers", 735 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 736 "Barriers option to which the system " 737 "attempts to conform"), 738 /* XXX _POSIX_VERSION */ 739 NULL, _POSIX_BARRIERS, NULL, 0, 740 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 741 sysctl_createv(clog, 0, NULL, NULL, 742 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 743 CTLTYPE_INT, "posix_timers", 744 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 745 "Timers option to which the system " 746 "attempts to conform"), 747 /* XXX _POSIX_VERSION */ 748 NULL, _POSIX_TIMERS, NULL, 0, 749 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 750 sysctl_createv(clog, 0, NULL, NULL, 751 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 752 CTLTYPE_INT, "posix_spin_locks", 753 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 754 "Locks option to which the system attempts " 755 "to conform"), 756 /* XXX _POSIX_VERSION */ 757 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 758 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 761 CTLTYPE_INT, "posix_reader_writer_locks", 762 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 763 "Read-Write Locks option to which the " 764 "system attempts to conform"), 765 /* XXX _POSIX_VERSION */ 766 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 767 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 768 sysctl_createv(clog, 0, NULL, NULL, 769 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 770 CTLTYPE_INT, "dump_on_panic", 771 SYSCTL_DESCR("Perform a crash dump on system panic"), 772 NULL, 0, &dumponpanic, 0, 773 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 774 #ifdef DIAGNOSTIC 775 sysctl_createv(clog, 0, NULL, NULL, 776 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 777 CTLTYPE_INT, "panic_now", 778 SYSCTL_DESCR("Trigger a panic"), 779 sysctl_kern_trigger_panic, 0, NULL, 0, 780 CTL_KERN, CTL_CREATE, CTL_EOL); 781 #endif 782 sysctl_createv(clog, 0, NULL, NULL, 783 CTLFLAG_PERMANENT, 784 CTLTYPE_INT, "root_partition", 785 SYSCTL_DESCR("Root partition on the root device"), 786 sysctl_kern_root_partition, 0, NULL, 0, 787 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 788 sysctl_createv(clog, 0, NULL, NULL, 789 CTLFLAG_PERMANENT, 790 CTLTYPE_STRUCT, "drivers", 791 SYSCTL_DESCR("List of all drivers with block and " 792 "character device numbers"), 793 sysctl_kern_drivers, 0, NULL, 0, 794 CTL_KERN, KERN_DRIVERS, CTL_EOL); 795 sysctl_createv(clog, 0, NULL, NULL, 796 CTLFLAG_PERMANENT, 797 CTLTYPE_STRUCT, "file2", 798 SYSCTL_DESCR("System open file table"), 799 sysctl_kern_file2, 0, NULL, 0, 800 CTL_KERN, KERN_FILE2, CTL_EOL); 801 #if NVERIEXEC > 0 802 sysctl_createv(clog, 0, NULL, NULL, 803 CTLFLAG_PERMANENT, 804 CTLTYPE_NODE, "veriexec", 805 SYSCTL_DESCR("Verified Exec"), 806 NULL, 0, NULL, 0, 807 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 808 sysctl_createv(clog, 0, NULL, NULL, 809 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 810 CTLTYPE_INT, "verbose", 811 SYSCTL_DESCR("Verified Exec verbose level"), 812 NULL, 0, &veriexec_verbose, 0, 813 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 814 CTL_EOL); 815 sysctl_createv(clog, 0, NULL, NULL, 816 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 817 CTLTYPE_INT, "strict", 818 SYSCTL_DESCR("Verified Exec strict level"), 819 sysctl_kern_veriexec, 0, NULL, 0, 820 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 821 sysctl_createv(clog, 0, NULL, NULL, 822 CTLFLAG_PERMANENT, 823 CTLTYPE_STRING, "algorithms", 824 SYSCTL_DESCR("Verified Exec supported hashing " 825 "algorithms"), 826 sysctl_kern_veriexec, 0, NULL, 0, 827 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 828 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 829 CTLFLAG_PERMANENT, 830 CTLTYPE_NODE, "count", 831 SYSCTL_DESCR("Number of fingerprints on device(s)"), 832 NULL, 0, NULL, 0, 833 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 834 #endif /* NVERIEXEC > 0 */ 835 sysctl_createv(clog, 0, NULL, NULL, 836 CTLFLAG_PERMANENT, 837 CTLTYPE_STRUCT, "cp_id", 838 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 839 sysctl_kern_cpid, 0, NULL, 0, 840 CTL_KERN, KERN_CP_ID, CTL_EOL); 841 842 sysctl_createv(clog, 0, NULL, &rnode, 843 CTLFLAG_PERMANENT, 844 CTLTYPE_NODE, "coredump", 845 SYSCTL_DESCR("Coredump settings."), 846 NULL, 0, NULL, 0, 847 CTL_KERN, CTL_CREATE, CTL_EOL); 848 sysctl_createv(clog, 0, &rnode, &rnode, 849 CTLFLAG_PERMANENT, 850 CTLTYPE_NODE, "setid", 851 SYSCTL_DESCR("Set-id processes' coredump settings."), 852 NULL, 0, NULL, 0, 853 CTL_CREATE, CTL_EOL); 854 sysctl_createv(clog, 0, &rnode, NULL, 855 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 856 CTLTYPE_INT, "dump", 857 SYSCTL_DESCR("Allow set-id processes to dump core."), 858 sysctl_security_setidcore, 0, &security_setidcore_dump, 859 sizeof(security_setidcore_dump), 860 CTL_CREATE, CTL_EOL); 861 sysctl_createv(clog, 0, &rnode, NULL, 862 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 863 CTLTYPE_STRING, "path", 864 SYSCTL_DESCR("Path pattern for set-id coredumps."), 865 sysctl_security_setidcorename, 0, 866 &security_setidcore_path, 867 sizeof(security_setidcore_path), 868 CTL_CREATE, CTL_EOL); 869 sysctl_createv(clog, 0, &rnode, NULL, 870 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 871 CTLTYPE_INT, "owner", 872 SYSCTL_DESCR("Owner id for set-id processes' cores."), 873 sysctl_security_setidcore, 0, &security_setidcore_owner, 874 0, 875 CTL_CREATE, CTL_EOL); 876 sysctl_createv(clog, 0, &rnode, NULL, 877 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 878 CTLTYPE_INT, "group", 879 SYSCTL_DESCR("Group id for set-id processes' cores."), 880 sysctl_security_setidcore, 0, &security_setidcore_group, 881 0, 882 CTL_CREATE, CTL_EOL); 883 sysctl_createv(clog, 0, &rnode, NULL, 884 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 885 CTLTYPE_INT, "mode", 886 SYSCTL_DESCR("Mode for set-id processes' cores."), 887 sysctl_security_setidcore, 0, &security_setidcore_mode, 888 0, 889 CTL_CREATE, CTL_EOL); 890 } 891 892 SYSCTL_SETUP(sysctl_kern_proc_setup, 893 "sysctl kern.proc/proc2/proc_args subtree setup") 894 { 895 896 sysctl_createv(clog, 0, NULL, NULL, 897 CTLFLAG_PERMANENT, 898 CTLTYPE_NODE, "kern", NULL, 899 NULL, 0, NULL, 0, 900 CTL_KERN, CTL_EOL); 901 902 sysctl_createv(clog, 0, NULL, NULL, 903 CTLFLAG_PERMANENT, 904 CTLTYPE_NODE, "proc", 905 SYSCTL_DESCR("System-wide process information"), 906 sysctl_doeproc, 0, NULL, 0, 907 CTL_KERN, KERN_PROC, CTL_EOL); 908 sysctl_createv(clog, 0, NULL, NULL, 909 CTLFLAG_PERMANENT, 910 CTLTYPE_NODE, "proc2", 911 SYSCTL_DESCR("Machine-independent process information"), 912 sysctl_doeproc, 0, NULL, 0, 913 CTL_KERN, KERN_PROC2, CTL_EOL); 914 sysctl_createv(clog, 0, NULL, NULL, 915 CTLFLAG_PERMANENT, 916 CTLTYPE_NODE, "proc_args", 917 SYSCTL_DESCR("Process argument information"), 918 sysctl_kern_proc_args, 0, NULL, 0, 919 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 920 921 /* 922 "nodes" under these: 923 924 KERN_PROC_ALL 925 KERN_PROC_PID pid 926 KERN_PROC_PGRP pgrp 927 KERN_PROC_SESSION sess 928 KERN_PROC_TTY tty 929 KERN_PROC_UID uid 930 KERN_PROC_RUID uid 931 KERN_PROC_GID gid 932 KERN_PROC_RGID gid 933 934 all in all, probably not worth the effort... 935 */ 936 } 937 938 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 939 { 940 u_int u; 941 u_quad_t q; 942 943 sysctl_createv(clog, 0, NULL, NULL, 944 CTLFLAG_PERMANENT, 945 CTLTYPE_NODE, "hw", NULL, 946 NULL, 0, NULL, 0, 947 CTL_HW, CTL_EOL); 948 949 sysctl_createv(clog, 0, NULL, NULL, 950 CTLFLAG_PERMANENT, 951 CTLTYPE_STRING, "machine", 952 SYSCTL_DESCR("Machine class"), 953 NULL, 0, machine, 0, 954 CTL_HW, HW_MACHINE, CTL_EOL); 955 sysctl_createv(clog, 0, NULL, NULL, 956 CTLFLAG_PERMANENT, 957 CTLTYPE_STRING, "model", 958 SYSCTL_DESCR("Machine model"), 959 NULL, 0, cpu_model, 0, 960 CTL_HW, HW_MODEL, CTL_EOL); 961 sysctl_createv(clog, 0, NULL, NULL, 962 CTLFLAG_PERMANENT, 963 CTLTYPE_INT, "ncpu", 964 SYSCTL_DESCR("Number of active CPUs"), 965 sysctl_hw_ncpu, 0, NULL, 0, 966 CTL_HW, HW_NCPU, CTL_EOL); 967 sysctl_createv(clog, 0, NULL, NULL, 968 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 969 CTLTYPE_INT, "byteorder", 970 SYSCTL_DESCR("System byte order"), 971 NULL, BYTE_ORDER, NULL, 0, 972 CTL_HW, HW_BYTEORDER, CTL_EOL); 973 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 974 UINT_MAX : physmem * PAGE_SIZE; 975 sysctl_createv(clog, 0, NULL, NULL, 976 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 977 CTLTYPE_INT, "physmem", 978 SYSCTL_DESCR("Bytes of physical memory"), 979 NULL, u, NULL, 0, 980 CTL_HW, HW_PHYSMEM, CTL_EOL); 981 sysctl_createv(clog, 0, NULL, NULL, 982 CTLFLAG_PERMANENT, 983 CTLTYPE_INT, "usermem", 984 SYSCTL_DESCR("Bytes of non-kernel memory"), 985 sysctl_hw_usermem, 0, NULL, 0, 986 CTL_HW, HW_USERMEM, CTL_EOL); 987 sysctl_createv(clog, 0, NULL, NULL, 988 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 989 CTLTYPE_INT, "pagesize", 990 SYSCTL_DESCR("Software page size"), 991 NULL, PAGE_SIZE, NULL, 0, 992 CTL_HW, HW_PAGESIZE, CTL_EOL); 993 sysctl_createv(clog, 0, NULL, NULL, 994 CTLFLAG_PERMANENT, 995 CTLTYPE_STRING, "machine_arch", 996 SYSCTL_DESCR("Machine CPU class"), 997 NULL, 0, machine_arch, 0, 998 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 999 sysctl_createv(clog, 0, NULL, NULL, 1000 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 1001 CTLTYPE_INT, "alignbytes", 1002 SYSCTL_DESCR("Alignment constraint for all possible " 1003 "data types"), 1004 NULL, ALIGNBYTES, NULL, 0, 1005 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 1006 sysctl_createv(clog, 0, NULL, NULL, 1007 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 1008 CTLTYPE_STRING, "cnmagic", 1009 SYSCTL_DESCR("Console magic key sequence"), 1010 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 1011 CTL_HW, HW_CNMAGIC, CTL_EOL); 1012 q = (u_quad_t)physmem * PAGE_SIZE; 1013 sysctl_createv(clog, 0, NULL, NULL, 1014 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 1015 CTLTYPE_QUAD, "physmem64", 1016 SYSCTL_DESCR("Bytes of physical memory"), 1017 NULL, q, NULL, 0, 1018 CTL_HW, HW_PHYSMEM64, CTL_EOL); 1019 sysctl_createv(clog, 0, NULL, NULL, 1020 CTLFLAG_PERMANENT, 1021 CTLTYPE_QUAD, "usermem64", 1022 SYSCTL_DESCR("Bytes of non-kernel memory"), 1023 sysctl_hw_usermem, 0, NULL, 0, 1024 CTL_HW, HW_USERMEM64, CTL_EOL); 1025 } 1026 1027 #ifdef DEBUG 1028 /* 1029 * Debugging related system variables. 1030 */ 1031 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1032 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1033 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1034 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1035 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1036 &debug0, &debug1, &debug2, &debug3, &debug4, 1037 &debug5, &debug6, &debug7, &debug8, &debug9, 1038 &debug10, &debug11, &debug12, &debug13, &debug14, 1039 &debug15, &debug16, &debug17, &debug18, &debug19, 1040 }; 1041 1042 /* 1043 * this setup routine is a replacement for debug_sysctl() 1044 * 1045 * note that it creates several nodes per defined debug variable 1046 */ 1047 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1048 { 1049 struct ctldebug *cdp; 1050 char nodename[20]; 1051 int i; 1052 1053 /* 1054 * two ways here: 1055 * 1056 * the "old" way (debug.name -> value) which was emulated by 1057 * the sysctl(8) binary 1058 * 1059 * the new way, which the sysctl(8) binary was actually using 1060 1061 node debug 1062 node debug.0 1063 string debug.0.name 1064 int debug.0.value 1065 int debug.name 1066 1067 */ 1068 1069 sysctl_createv(clog, 0, NULL, NULL, 1070 CTLFLAG_PERMANENT, 1071 CTLTYPE_NODE, "debug", NULL, 1072 NULL, 0, NULL, 0, 1073 CTL_DEBUG, CTL_EOL); 1074 1075 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1076 cdp = debugvars[i]; 1077 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1078 continue; 1079 1080 snprintf(nodename, sizeof(nodename), "debug%d", i); 1081 sysctl_createv(clog, 0, NULL, NULL, 1082 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1083 CTLTYPE_NODE, nodename, NULL, 1084 NULL, 0, NULL, 0, 1085 CTL_DEBUG, i, CTL_EOL); 1086 sysctl_createv(clog, 0, NULL, NULL, 1087 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1088 CTLTYPE_STRING, "name", NULL, 1089 /*XXXUNCONST*/ 1090 NULL, 0, __UNCONST(cdp->debugname), 0, 1091 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1092 sysctl_createv(clog, 0, NULL, NULL, 1093 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1094 CTLTYPE_INT, "value", NULL, 1095 NULL, 0, cdp->debugvar, 0, 1096 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1097 sysctl_createv(clog, 0, NULL, NULL, 1098 CTLFLAG_PERMANENT, 1099 CTLTYPE_INT, cdp->debugname, NULL, 1100 NULL, 0, cdp->debugvar, 0, 1101 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1102 } 1103 } 1104 #endif /* DEBUG */ 1105 1106 /* 1107 * ******************************************************************** 1108 * section 2: private node-specific helper routines. 1109 * ******************************************************************** 1110 */ 1111 1112 #ifdef DIAGNOSTIC 1113 static int 1114 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1115 { 1116 int newtrig, error; 1117 struct sysctlnode node; 1118 1119 newtrig = 0; 1120 node = *rnode; 1121 node.sysctl_data = &newtrig; 1122 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1123 if (error || newp == NULL) 1124 return (error); 1125 1126 if (newtrig != 0) 1127 panic("Panic triggered"); 1128 1129 return (error); 1130 } 1131 #endif 1132 1133 /* 1134 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1135 * new value is lower than desiredvnodes and then calls reinit 1136 * routines that needs to adjust to the new value. 1137 */ 1138 static int 1139 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1140 { 1141 int error, new_vnodes, old_vnodes; 1142 struct sysctlnode node; 1143 1144 new_vnodes = desiredvnodes; 1145 node = *rnode; 1146 node.sysctl_data = &new_vnodes; 1147 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1148 if (error || newp == NULL) 1149 return (error); 1150 1151 old_vnodes = desiredvnodes; 1152 desiredvnodes = new_vnodes; 1153 if (new_vnodes < old_vnodes) { 1154 error = vfs_drainvnodes(new_vnodes, l); 1155 if (error) { 1156 desiredvnodes = old_vnodes; 1157 return (error); 1158 } 1159 } 1160 vfs_reinit(); 1161 nchreinit(); 1162 1163 return (0); 1164 } 1165 1166 /* 1167 * sysctl helper routine for rtc_offset - set time after changes 1168 */ 1169 static int 1170 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1171 { 1172 struct timespec ts, delta; 1173 int error, new_rtc_offset; 1174 struct sysctlnode node; 1175 1176 new_rtc_offset = rtc_offset; 1177 node = *rnode; 1178 node.sysctl_data = &new_rtc_offset; 1179 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1180 if (error || newp == NULL) 1181 return (error); 1182 1183 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1184 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1185 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1186 return (EPERM); 1187 if (rtc_offset == new_rtc_offset) 1188 return (0); 1189 1190 /* if we change the offset, adjust the time */ 1191 nanotime(&ts); 1192 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1193 delta.tv_nsec = 0; 1194 timespecadd(&ts, &delta, &ts); 1195 rtc_offset = new_rtc_offset; 1196 settime(l->l_proc, &ts); 1197 1198 return (0); 1199 } 1200 1201 /* 1202 * sysctl helper routine for kern.maxproc. ensures that the new 1203 * values are not too low or too high. 1204 */ 1205 static int 1206 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1207 { 1208 int error, nmaxproc; 1209 struct sysctlnode node; 1210 1211 nmaxproc = maxproc; 1212 node = *rnode; 1213 node.sysctl_data = &nmaxproc; 1214 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1215 if (error || newp == NULL) 1216 return (error); 1217 1218 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1219 return (EINVAL); 1220 #ifdef __HAVE_CPU_MAXPROC 1221 if (nmaxproc > cpu_maxproc()) 1222 return (EINVAL); 1223 #endif 1224 maxproc = nmaxproc; 1225 1226 return (0); 1227 } 1228 1229 /* 1230 * sysctl helper function for kern.hostid. the hostid is a long, but 1231 * we export it as an int, so we need to give it a little help. 1232 */ 1233 static int 1234 sysctl_kern_hostid(SYSCTLFN_ARGS) 1235 { 1236 int error, inthostid; 1237 struct sysctlnode node; 1238 1239 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1240 node = *rnode; 1241 node.sysctl_data = &inthostid; 1242 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1243 if (error || newp == NULL) 1244 return (error); 1245 1246 hostid = (unsigned)inthostid; 1247 1248 return (0); 1249 } 1250 1251 /* 1252 * sysctl helper function for kern.hostname and kern.domainnname. 1253 * resets the relevant recorded length when the underlying name is 1254 * changed. 1255 */ 1256 static int 1257 sysctl_setlen(SYSCTLFN_ARGS) 1258 { 1259 int error; 1260 1261 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1262 if (error || newp == NULL) 1263 return (error); 1264 1265 switch (rnode->sysctl_num) { 1266 case KERN_HOSTNAME: 1267 hostnamelen = strlen((const char*)rnode->sysctl_data); 1268 break; 1269 case KERN_DOMAINNAME: 1270 domainnamelen = strlen((const char*)rnode->sysctl_data); 1271 break; 1272 } 1273 1274 return (0); 1275 } 1276 1277 /* 1278 * sysctl helper routine for kern.clockrate. assembles a struct on 1279 * the fly to be returned to the caller. 1280 */ 1281 static int 1282 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1283 { 1284 struct clockinfo clkinfo; 1285 struct sysctlnode node; 1286 1287 clkinfo.tick = tick; 1288 clkinfo.tickadj = tickadj; 1289 clkinfo.hz = hz; 1290 clkinfo.profhz = profhz; 1291 clkinfo.stathz = stathz ? stathz : hz; 1292 1293 node = *rnode; 1294 node.sysctl_data = &clkinfo; 1295 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1296 } 1297 1298 1299 /* 1300 * sysctl helper routine for kern.file pseudo-subtree. 1301 */ 1302 static int 1303 sysctl_kern_file(SYSCTLFN_ARGS) 1304 { 1305 int error; 1306 size_t buflen; 1307 struct file *fp; 1308 char *start, *where; 1309 1310 start = where = oldp; 1311 buflen = *oldlenp; 1312 if (where == NULL) { 1313 /* 1314 * overestimate by 10 files 1315 */ 1316 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1317 return (0); 1318 } 1319 1320 /* 1321 * first dcopyout filehead 1322 */ 1323 if (buflen < sizeof(filehead)) { 1324 *oldlenp = 0; 1325 return (0); 1326 } 1327 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1328 if (error) 1329 return (error); 1330 buflen -= sizeof(filehead); 1331 where += sizeof(filehead); 1332 1333 /* 1334 * followed by an array of file structures 1335 */ 1336 LIST_FOREACH(fp, &filehead, f_list) { 1337 if (kauth_authorize_generic(l->l_cred, 1338 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1339 continue; 1340 if (buflen < sizeof(struct file)) { 1341 *oldlenp = where - start; 1342 return (ENOMEM); 1343 } 1344 error = dcopyout(l, fp, where, sizeof(struct file)); 1345 if (error) 1346 return (error); 1347 buflen -= sizeof(struct file); 1348 where += sizeof(struct file); 1349 } 1350 *oldlenp = where - start; 1351 return (0); 1352 } 1353 1354 /* 1355 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1356 * asserts that the assigned value is in the correct range. 1357 */ 1358 static int 1359 sysctl_kern_autonice(SYSCTLFN_ARGS) 1360 { 1361 int error, t = 0; 1362 struct sysctlnode node; 1363 1364 node = *rnode; 1365 t = *(int*)node.sysctl_data; 1366 node.sysctl_data = &t; 1367 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1368 if (error || newp == NULL) 1369 return (error); 1370 1371 switch (node.sysctl_num) { 1372 case KERN_AUTONICETIME: 1373 if (t >= 0) 1374 autonicetime = t; 1375 break; 1376 case KERN_AUTONICEVAL: 1377 if (t < PRIO_MIN) 1378 t = PRIO_MIN; 1379 else if (t > PRIO_MAX) 1380 t = PRIO_MAX; 1381 autoniceval = t; 1382 break; 1383 } 1384 1385 return (0); 1386 } 1387 1388 /* 1389 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1390 * former it merely checks the message buffer is set up. for the latter, 1391 * it also copies out the data if necessary. 1392 */ 1393 static int 1394 sysctl_msgbuf(SYSCTLFN_ARGS) 1395 { 1396 char *where = oldp; 1397 size_t len, maxlen; 1398 long beg, end; 1399 int error; 1400 1401 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1402 msgbufenabled = 0; 1403 return (ENXIO); 1404 } 1405 1406 switch (rnode->sysctl_num) { 1407 case KERN_MSGBUFSIZE: { 1408 struct sysctlnode node = *rnode; 1409 int msg_bufs = (int)msgbufp->msg_bufs; 1410 node.sysctl_data = &msg_bufs; 1411 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1412 } 1413 case KERN_MSGBUF: 1414 break; 1415 default: 1416 return (EOPNOTSUPP); 1417 } 1418 1419 if (newp != NULL) 1420 return (EPERM); 1421 1422 if (oldp == NULL) { 1423 /* always return full buffer size */ 1424 *oldlenp = msgbufp->msg_bufs; 1425 return (0); 1426 } 1427 1428 error = 0; 1429 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1430 1431 /* 1432 * First, copy from the write pointer to the end of 1433 * message buffer. 1434 */ 1435 beg = msgbufp->msg_bufx; 1436 end = msgbufp->msg_bufs; 1437 while (maxlen > 0) { 1438 len = MIN(end - beg, maxlen); 1439 if (len == 0) 1440 break; 1441 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1442 if (error) 1443 break; 1444 where += len; 1445 maxlen -= len; 1446 1447 /* 1448 * ... then, copy from the beginning of message buffer to 1449 * the write pointer. 1450 */ 1451 beg = 0; 1452 end = msgbufp->msg_bufx; 1453 } 1454 1455 return (error); 1456 } 1457 1458 /* 1459 * sysctl helper routine for kern.defcorename. in the case of a new 1460 * string being assigned, check that it's not a zero-length string. 1461 * (XXX the check in -current doesn't work, but do we really care?) 1462 */ 1463 static int 1464 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1465 { 1466 int error; 1467 char *newcorename; 1468 struct sysctlnode node; 1469 1470 newcorename = PNBUF_GET(); 1471 node = *rnode; 1472 node.sysctl_data = &newcorename[0]; 1473 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1474 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1475 if (error || newp == NULL) { 1476 goto done; 1477 } 1478 1479 /* 1480 * when sysctl_lookup() deals with a string, it's guaranteed 1481 * to come back nul terminated. so there. :) 1482 */ 1483 if (strlen(newcorename) == 0) { 1484 error = EINVAL; 1485 } else { 1486 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1487 error = 0; 1488 } 1489 done: 1490 PNBUF_PUT(newcorename); 1491 return error; 1492 } 1493 1494 /* 1495 * sysctl helper routine for kern.cp_time node. adds up cpu time 1496 * across all cpus. 1497 */ 1498 static int 1499 sysctl_kern_cptime(SYSCTLFN_ARGS) 1500 { 1501 struct sysctlnode node = *rnode; 1502 1503 #ifndef MULTIPROCESSOR 1504 1505 if (namelen == 1) { 1506 if (name[0] != 0) 1507 return (ENOENT); 1508 /* 1509 * you're allowed to ask for the zero'th processor 1510 */ 1511 name++; 1512 namelen--; 1513 } 1514 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1515 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1516 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1517 1518 #else /* MULTIPROCESSOR */ 1519 1520 uint64_t *cp_time = NULL; 1521 int error, n = sysctl_ncpus(), i; 1522 struct cpu_info *ci; 1523 CPU_INFO_ITERATOR cii; 1524 1525 /* 1526 * if you specifically pass a buffer that is the size of the 1527 * sum, or if you are probing for the size, you get the "sum" 1528 * of cp_time (and the size thereof) across all processors. 1529 * 1530 * alternately, you can pass an additional mib number and get 1531 * cp_time for that particular processor. 1532 */ 1533 switch (namelen) { 1534 case 0: 1535 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1536 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1537 n = -1; /* SUM */ 1538 } 1539 else { 1540 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1541 n = -2; /* ALL */ 1542 } 1543 break; 1544 case 1: 1545 if (name[0] < 0 || name[0] >= n) 1546 return (ENOENT); /* ENOSUCHPROCESSOR */ 1547 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1548 n = name[0]; 1549 /* 1550 * adjust these so that sysctl_lookup() will be happy 1551 */ 1552 name++; 1553 namelen--; 1554 break; 1555 default: 1556 return (EINVAL); 1557 } 1558 1559 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1560 if (cp_time == NULL) 1561 return (ENOMEM); 1562 node.sysctl_data = cp_time; 1563 memset(cp_time, 0, node.sysctl_size); 1564 1565 for (CPU_INFO_FOREACH(cii, ci)) { 1566 if (n <= 0) 1567 for (i = 0; i < CPUSTATES; i++) 1568 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1569 /* 1570 * if a specific processor was requested and we just 1571 * did it, we're done here 1572 */ 1573 if (n == 0) 1574 break; 1575 /* 1576 * if doing "all", skip to next cp_time set for next processor 1577 */ 1578 if (n == -2) 1579 cp_time += CPUSTATES; 1580 /* 1581 * if we're doing a specific processor, we're one 1582 * processor closer 1583 */ 1584 if (n > 0) 1585 n--; 1586 } 1587 1588 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1589 free(node.sysctl_data, M_TEMP); 1590 return (error); 1591 1592 #endif /* MULTIPROCESSOR */ 1593 } 1594 1595 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1596 /* 1597 * sysctl helper routine for kern.sysvipc_info subtree. 1598 */ 1599 1600 #define FILL_PERM(src, dst) do { \ 1601 (dst)._key = (src)._key; \ 1602 (dst).uid = (src).uid; \ 1603 (dst).gid = (src).gid; \ 1604 (dst).cuid = (src).cuid; \ 1605 (dst).cgid = (src).cgid; \ 1606 (dst).mode = (src).mode; \ 1607 (dst)._seq = (src)._seq; \ 1608 } while (/*CONSTCOND*/ 0); 1609 #define FILL_MSG(src, dst) do { \ 1610 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1611 (dst).msg_qnum = (src).msg_qnum; \ 1612 (dst).msg_qbytes = (src).msg_qbytes; \ 1613 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1614 (dst).msg_lspid = (src).msg_lspid; \ 1615 (dst).msg_lrpid = (src).msg_lrpid; \ 1616 (dst).msg_stime = (src).msg_stime; \ 1617 (dst).msg_rtime = (src).msg_rtime; \ 1618 (dst).msg_ctime = (src).msg_ctime; \ 1619 } while (/*CONSTCOND*/ 0) 1620 #define FILL_SEM(src, dst) do { \ 1621 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1622 (dst).sem_nsems = (src).sem_nsems; \ 1623 (dst).sem_otime = (src).sem_otime; \ 1624 (dst).sem_ctime = (src).sem_ctime; \ 1625 } while (/*CONSTCOND*/ 0) 1626 #define FILL_SHM(src, dst) do { \ 1627 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1628 (dst).shm_segsz = (src).shm_segsz; \ 1629 (dst).shm_lpid = (src).shm_lpid; \ 1630 (dst).shm_cpid = (src).shm_cpid; \ 1631 (dst).shm_atime = (src).shm_atime; \ 1632 (dst).shm_dtime = (src).shm_dtime; \ 1633 (dst).shm_ctime = (src).shm_ctime; \ 1634 (dst).shm_nattch = (src).shm_nattch; \ 1635 } while (/*CONSTCOND*/ 0) 1636 1637 static int 1638 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1639 { 1640 void *where = oldp; 1641 size_t *sizep = oldlenp; 1642 #ifdef SYSVMSG 1643 struct msg_sysctl_info *msgsi = NULL; 1644 #endif 1645 #ifdef SYSVSEM 1646 struct sem_sysctl_info *semsi = NULL; 1647 #endif 1648 #ifdef SYSVSHM 1649 struct shm_sysctl_info *shmsi = NULL; 1650 #endif 1651 size_t infosize, dssize, tsize, buflen; 1652 void *bf = NULL; 1653 char *start; 1654 int32_t nds; 1655 int i, error, ret; 1656 1657 if (namelen != 1) 1658 return (EINVAL); 1659 1660 start = where; 1661 buflen = *sizep; 1662 1663 switch (*name) { 1664 case KERN_SYSVIPC_MSG_INFO: 1665 #ifdef SYSVMSG 1666 infosize = sizeof(msgsi->msginfo); 1667 nds = msginfo.msgmni; 1668 dssize = sizeof(msgsi->msgids[0]); 1669 break; 1670 #else 1671 return (EINVAL); 1672 #endif 1673 case KERN_SYSVIPC_SEM_INFO: 1674 #ifdef SYSVSEM 1675 infosize = sizeof(semsi->seminfo); 1676 nds = seminfo.semmni; 1677 dssize = sizeof(semsi->semids[0]); 1678 break; 1679 #else 1680 return (EINVAL); 1681 #endif 1682 case KERN_SYSVIPC_SHM_INFO: 1683 #ifdef SYSVSHM 1684 infosize = sizeof(shmsi->shminfo); 1685 nds = shminfo.shmmni; 1686 dssize = sizeof(shmsi->shmids[0]); 1687 break; 1688 #else 1689 return (EINVAL); 1690 #endif 1691 default: 1692 return (EINVAL); 1693 } 1694 /* 1695 * Round infosize to 64 bit boundary if requesting more than just 1696 * the info structure or getting the total data size. 1697 */ 1698 if (where == NULL || *sizep > infosize) 1699 infosize = ((infosize + 7) / 8) * 8; 1700 tsize = infosize + nds * dssize; 1701 1702 /* Return just the total size required. */ 1703 if (where == NULL) { 1704 *sizep = tsize; 1705 return (0); 1706 } 1707 1708 /* Not enough room for even the info struct. */ 1709 if (buflen < infosize) { 1710 *sizep = 0; 1711 return (ENOMEM); 1712 } 1713 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1714 memset(bf, 0, min(tsize, buflen)); 1715 1716 switch (*name) { 1717 #ifdef SYSVMSG 1718 case KERN_SYSVIPC_MSG_INFO: 1719 msgsi = (struct msg_sysctl_info *)bf; 1720 msgsi->msginfo = msginfo; 1721 break; 1722 #endif 1723 #ifdef SYSVSEM 1724 case KERN_SYSVIPC_SEM_INFO: 1725 semsi = (struct sem_sysctl_info *)bf; 1726 semsi->seminfo = seminfo; 1727 break; 1728 #endif 1729 #ifdef SYSVSHM 1730 case KERN_SYSVIPC_SHM_INFO: 1731 shmsi = (struct shm_sysctl_info *)bf; 1732 shmsi->shminfo = shminfo; 1733 break; 1734 #endif 1735 } 1736 buflen -= infosize; 1737 1738 ret = 0; 1739 if (buflen > 0) { 1740 /* Fill in the IPC data structures. */ 1741 for (i = 0; i < nds; i++) { 1742 if (buflen < dssize) { 1743 ret = ENOMEM; 1744 break; 1745 } 1746 switch (*name) { 1747 #ifdef SYSVMSG 1748 case KERN_SYSVIPC_MSG_INFO: 1749 FILL_MSG(msqids[i], msgsi->msgids[i]); 1750 break; 1751 #endif 1752 #ifdef SYSVSEM 1753 case KERN_SYSVIPC_SEM_INFO: 1754 FILL_SEM(sema[i], semsi->semids[i]); 1755 break; 1756 #endif 1757 #ifdef SYSVSHM 1758 case KERN_SYSVIPC_SHM_INFO: 1759 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1760 break; 1761 #endif 1762 } 1763 buflen -= dssize; 1764 } 1765 } 1766 *sizep -= buflen; 1767 error = dcopyout(l, bf, start, *sizep); 1768 /* If dcopyout succeeded, use return code set earlier. */ 1769 if (error == 0) 1770 error = ret; 1771 if (bf) 1772 free(bf, M_TEMP); 1773 return (error); 1774 } 1775 1776 #undef FILL_PERM 1777 #undef FILL_MSG 1778 #undef FILL_SEM 1779 #undef FILL_SHM 1780 1781 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1782 1783 #if NPTY > 0 1784 /* 1785 * sysctl helper routine for kern.maxptys. ensures that any new value 1786 * is acceptable to the pty subsystem. 1787 */ 1788 static int 1789 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1790 { 1791 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1792 int error, xmax; 1793 struct sysctlnode node; 1794 1795 /* get current value of maxptys */ 1796 xmax = pty_maxptys(0, 0); 1797 1798 node = *rnode; 1799 node.sysctl_data = &xmax; 1800 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1801 if (error || newp == NULL) 1802 return (error); 1803 1804 if (xmax != pty_maxptys(xmax, 1)) 1805 return (EINVAL); 1806 1807 return (0); 1808 } 1809 #endif /* NPTY > 0 */ 1810 1811 /* 1812 * sysctl helper routine for kern.sbmax. basically just ensures that 1813 * any new value is not too small. 1814 */ 1815 static int 1816 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1817 { 1818 int error, new_sbmax; 1819 struct sysctlnode node; 1820 1821 new_sbmax = sb_max; 1822 node = *rnode; 1823 node.sysctl_data = &new_sbmax; 1824 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1825 if (error || newp == NULL) 1826 return (error); 1827 1828 error = sb_max_set(new_sbmax); 1829 1830 return (error); 1831 } 1832 1833 /* 1834 * sysctl helper routine for kern.urandom node. picks a random number 1835 * for you. 1836 */ 1837 static int 1838 sysctl_kern_urnd(SYSCTLFN_ARGS) 1839 { 1840 #if NRND > 0 1841 int v; 1842 1843 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1844 struct sysctlnode node = *rnode; 1845 node.sysctl_data = &v; 1846 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1847 } 1848 else 1849 return (EIO); /*XXX*/ 1850 #else 1851 return (EOPNOTSUPP); 1852 #endif 1853 } 1854 1855 /* 1856 * sysctl helper routine to do kern.lwp.* work. 1857 */ 1858 static int 1859 sysctl_kern_lwp(SYSCTLFN_ARGS) 1860 { 1861 struct kinfo_lwp klwp; 1862 struct proc *p; 1863 struct lwp *l2; 1864 char *where, *dp; 1865 int pid, elem_size, elem_count; 1866 int buflen, needed, error; 1867 1868 if (namelen == 1 && name[0] == CTL_QUERY) 1869 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1870 1871 dp = where = oldp; 1872 buflen = where != NULL ? *oldlenp : 0; 1873 error = needed = 0; 1874 1875 if (newp != NULL || namelen != 3) 1876 return (EINVAL); 1877 pid = name[0]; 1878 elem_size = name[1]; 1879 elem_count = name[2]; 1880 1881 p = pfind(pid); 1882 if (p == NULL) 1883 return (ESRCH); 1884 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1885 if (buflen >= elem_size && elem_count > 0) { 1886 fill_lwp(l2, &klwp); 1887 /* 1888 * Copy out elem_size, but not larger than 1889 * the size of a struct kinfo_proc2. 1890 */ 1891 error = dcopyout(l, &klwp, dp, 1892 min(sizeof(klwp), elem_size)); 1893 if (error) 1894 goto cleanup; 1895 dp += elem_size; 1896 buflen -= elem_size; 1897 elem_count--; 1898 } 1899 needed += elem_size; 1900 } 1901 1902 if (where != NULL) { 1903 *oldlenp = dp - where; 1904 if (needed > *oldlenp) 1905 return (ENOMEM); 1906 } else { 1907 needed += KERN_LWPSLOP; 1908 *oldlenp = needed; 1909 } 1910 return (0); 1911 cleanup: 1912 return (error); 1913 } 1914 1915 /* 1916 * sysctl helper routine for kern.forkfsleep node. ensures that the 1917 * given value is not too large or two small, and is at least one 1918 * timer tick if not zero. 1919 */ 1920 static int 1921 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1922 { 1923 /* userland sees value in ms, internally is in ticks */ 1924 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1925 int error, timo, lsleep; 1926 struct sysctlnode node; 1927 1928 lsleep = forkfsleep * 1000 / hz; 1929 node = *rnode; 1930 node.sysctl_data = &lsleep; 1931 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1932 if (error || newp == NULL) 1933 return (error); 1934 1935 /* refuse negative values, and overly 'long time' */ 1936 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1937 return (EINVAL); 1938 1939 timo = mstohz(lsleep); 1940 1941 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1942 if (lsleep != 0 && timo == 0) 1943 forkfsleep = 1; 1944 else 1945 forkfsleep = timo; 1946 1947 return (0); 1948 } 1949 1950 /* 1951 * sysctl helper routine for kern.root_partition 1952 */ 1953 static int 1954 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1955 { 1956 int rootpart = DISKPART(rootdev); 1957 struct sysctlnode node = *rnode; 1958 1959 node.sysctl_data = &rootpart; 1960 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1961 } 1962 1963 /* 1964 * sysctl helper function for kern.drivers 1965 */ 1966 static int 1967 sysctl_kern_drivers(SYSCTLFN_ARGS) 1968 { 1969 int error; 1970 size_t buflen; 1971 struct kinfo_drivers kd; 1972 char *start, *where; 1973 const char *dname; 1974 int i; 1975 extern struct devsw_conv *devsw_conv; 1976 extern int max_devsw_convs; 1977 1978 if (newp != NULL || namelen != 0) 1979 return (EINVAL); 1980 1981 start = where = oldp; 1982 buflen = *oldlenp; 1983 if (where == NULL) { 1984 *oldlenp = max_devsw_convs * sizeof kd; 1985 return 0; 1986 } 1987 1988 /* 1989 * An array of kinfo_drivers structures 1990 */ 1991 error = 0; 1992 for (i = 0; i < max_devsw_convs; i++) { 1993 dname = devsw_conv[i].d_name; 1994 if (dname == NULL) 1995 continue; 1996 if (buflen < sizeof kd) { 1997 error = ENOMEM; 1998 break; 1999 } 2000 memset(&kd, 0, sizeof(kd)); 2001 kd.d_bmajor = devsw_conv[i].d_bmajor; 2002 kd.d_cmajor = devsw_conv[i].d_cmajor; 2003 strlcpy(kd.d_name, dname, sizeof kd.d_name); 2004 error = dcopyout(l, &kd, where, sizeof kd); 2005 if (error != 0) 2006 break; 2007 buflen -= sizeof kd; 2008 where += sizeof kd; 2009 } 2010 *oldlenp = where - start; 2011 return error; 2012 } 2013 2014 /* 2015 * sysctl helper function for kern.file2 2016 */ 2017 static int 2018 sysctl_kern_file2(SYSCTLFN_ARGS) 2019 { 2020 struct proc *p; 2021 struct file *fp; 2022 struct filedesc *fd; 2023 struct kinfo_file kf; 2024 char *dp; 2025 u_int i, op; 2026 size_t len, needed, elem_size, out_size; 2027 int error, arg, elem_count; 2028 2029 if (namelen == 1 && name[0] == CTL_QUERY) 2030 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2031 2032 if (namelen != 4) 2033 return (EINVAL); 2034 2035 error = 0; 2036 dp = oldp; 2037 len = (oldp != NULL) ? *oldlenp : 0; 2038 op = name[0]; 2039 arg = name[1]; 2040 elem_size = name[2]; 2041 elem_count = name[3]; 2042 out_size = MIN(sizeof(kf), elem_size); 2043 needed = 0; 2044 2045 if (elem_size < 1 || elem_count < 0) 2046 return (EINVAL); 2047 2048 switch (op) { 2049 case KERN_FILE_BYFILE: 2050 /* 2051 * doesn't use arg so it must be zero 2052 */ 2053 if (arg != 0) 2054 return (EINVAL); 2055 LIST_FOREACH(fp, &filehead, f_list) { 2056 if (kauth_authorize_generic(l->l_cred, 2057 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 2058 continue; 2059 if (len >= elem_size && elem_count > 0) { 2060 fill_file(&kf, fp, NULL, 0); 2061 error = dcopyout(l, &kf, dp, out_size); 2062 if (error) 2063 break; 2064 dp += elem_size; 2065 len -= elem_size; 2066 } 2067 if (elem_count > 0) { 2068 needed += elem_size; 2069 if (elem_count != INT_MAX) 2070 elem_count--; 2071 } 2072 } 2073 break; 2074 case KERN_FILE_BYPID: 2075 if (arg < -1) 2076 /* -1 means all processes */ 2077 return (EINVAL); 2078 proclist_lock_read(); 2079 PROCLIST_FOREACH(p, &allproc) { 2080 if (p->p_stat == SIDL) 2081 /* skip embryonic processes */ 2082 continue; 2083 if (kauth_authorize_process(l->l_cred, 2084 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2085 continue; 2086 if (arg > 0 && p->p_pid != arg) 2087 /* pick only the one we want */ 2088 /* XXX want 0 to mean "kernel files" */ 2089 continue; 2090 fd = p->p_fd; 2091 for (i = 0; i < fd->fd_nfiles; i++) { 2092 fp = fd->fd_ofiles[i]; 2093 if (fp == NULL || !FILE_IS_USABLE(fp)) 2094 continue; 2095 if (len >= elem_size && elem_count > 0) { 2096 fill_file(&kf, fd->fd_ofiles[i], 2097 p, i); 2098 error = dcopyout(l, &kf, dp, out_size); 2099 if (error) 2100 break; 2101 dp += elem_size; 2102 len -= elem_size; 2103 } 2104 if (elem_count > 0) { 2105 needed += elem_size; 2106 if (elem_count != INT_MAX) 2107 elem_count--; 2108 } 2109 } 2110 } 2111 proclist_unlock_read(); 2112 break; 2113 default: 2114 return (EINVAL); 2115 } 2116 2117 if (oldp == NULL) 2118 needed += KERN_FILESLOP * elem_size; 2119 *oldlenp = needed; 2120 2121 return (error); 2122 } 2123 2124 static void 2125 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2126 { 2127 2128 memset(kp, 0, sizeof(*kp)); 2129 2130 kp->ki_fileaddr = PTRTOUINT64(fp); 2131 kp->ki_flag = fp->f_flag; 2132 kp->ki_iflags = fp->f_iflags; 2133 kp->ki_ftype = fp->f_type; 2134 kp->ki_count = fp->f_count; 2135 kp->ki_msgcount = fp->f_msgcount; 2136 kp->ki_usecount = fp->f_usecount; 2137 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2138 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2139 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2140 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2141 kp->ki_foffset = fp->f_offset; 2142 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2143 2144 /* vnode information to glue this file to something */ 2145 if (fp->f_type == DTYPE_VNODE) { 2146 struct vnode *vp = (struct vnode *)fp->f_data; 2147 2148 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2149 kp->ki_vsize = vp->v_size; 2150 kp->ki_vtype = vp->v_type; 2151 kp->ki_vtag = vp->v_tag; 2152 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2153 } 2154 2155 /* process information when retrieved via KERN_FILE_BYPID */ 2156 if (p) { 2157 kp->ki_pid = p->p_pid; 2158 kp->ki_fd = i; 2159 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2160 } 2161 } 2162 2163 static int 2164 sysctl_doeproc(SYSCTLFN_ARGS) 2165 { 2166 struct eproc *eproc; 2167 struct kinfo_proc2 *kproc2; 2168 struct kinfo_proc *dp; 2169 struct proc *p; 2170 const struct proclist_desc *pd; 2171 char *where, *dp2; 2172 int type, op, arg; 2173 u_int elem_size, elem_count; 2174 size_t buflen, needed; 2175 int error; 2176 2177 if (namelen == 1 && name[0] == CTL_QUERY) 2178 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2179 2180 dp = oldp; 2181 dp2 = where = oldp; 2182 buflen = where != NULL ? *oldlenp : 0; 2183 error = 0; 2184 needed = 0; 2185 type = rnode->sysctl_num; 2186 2187 if (type == KERN_PROC) { 2188 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2189 return (EINVAL); 2190 op = name[0]; 2191 if (op != KERN_PROC_ALL) 2192 arg = name[1]; 2193 else 2194 arg = 0; /* Quell compiler warning */ 2195 elem_size = elem_count = 0; /* Ditto */ 2196 } else { 2197 if (namelen != 4) 2198 return (EINVAL); 2199 op = name[0]; 2200 arg = name[1]; 2201 elem_size = name[2]; 2202 elem_count = name[3]; 2203 } 2204 2205 if (type == KERN_PROC) { 2206 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2207 kproc2 = NULL; 2208 } else { 2209 eproc = NULL; 2210 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2211 } 2212 proclist_lock_read(); 2213 2214 pd = proclists; 2215 again: 2216 PROCLIST_FOREACH(p, pd->pd_list) { 2217 /* 2218 * Skip embryonic processes. 2219 */ 2220 if (p->p_stat == SIDL) 2221 continue; 2222 2223 if (kauth_authorize_process(l->l_cred, 2224 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2225 continue; 2226 2227 /* 2228 * TODO - make more efficient (see notes below). 2229 * do by session. 2230 */ 2231 switch (op) { 2232 2233 case KERN_PROC_PID: 2234 /* could do this with just a lookup */ 2235 if (p->p_pid != (pid_t)arg) 2236 continue; 2237 break; 2238 2239 case KERN_PROC_PGRP: 2240 /* could do this by traversing pgrp */ 2241 if (p->p_pgrp->pg_id != (pid_t)arg) 2242 continue; 2243 break; 2244 2245 case KERN_PROC_SESSION: 2246 if (p->p_session->s_sid != (pid_t)arg) 2247 continue; 2248 break; 2249 2250 case KERN_PROC_TTY: 2251 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2252 if ((p->p_flag & P_CONTROLT) == 0 || 2253 p->p_session->s_ttyp == NULL || 2254 p->p_session->s_ttyvp != NULL) 2255 continue; 2256 } else if ((p->p_flag & P_CONTROLT) == 0 || 2257 p->p_session->s_ttyp == NULL) { 2258 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2259 continue; 2260 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2261 continue; 2262 break; 2263 2264 case KERN_PROC_UID: 2265 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2266 continue; 2267 break; 2268 2269 case KERN_PROC_RUID: 2270 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2271 continue; 2272 break; 2273 2274 case KERN_PROC_GID: 2275 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2276 continue; 2277 break; 2278 2279 case KERN_PROC_RGID: 2280 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2281 continue; 2282 break; 2283 2284 case KERN_PROC_ALL: 2285 /* allow everything */ 2286 break; 2287 2288 default: 2289 error = EINVAL; 2290 goto cleanup; 2291 } 2292 if (type == KERN_PROC) { 2293 if (buflen >= sizeof(struct kinfo_proc)) { 2294 fill_eproc(p, eproc); 2295 error = dcopyout(l, p, &dp->kp_proc, 2296 sizeof(struct proc)); 2297 if (error) 2298 goto cleanup; 2299 error = dcopyout(l, eproc, &dp->kp_eproc, 2300 sizeof(*eproc)); 2301 if (error) 2302 goto cleanup; 2303 dp++; 2304 buflen -= sizeof(struct kinfo_proc); 2305 } 2306 needed += sizeof(struct kinfo_proc); 2307 } else { /* KERN_PROC2 */ 2308 if (buflen >= elem_size && elem_count > 0) { 2309 fill_kproc2(p, kproc2); 2310 /* 2311 * Copy out elem_size, but not larger than 2312 * the size of a struct kinfo_proc2. 2313 */ 2314 error = dcopyout(l, kproc2, dp2, 2315 min(sizeof(*kproc2), elem_size)); 2316 if (error) 2317 goto cleanup; 2318 dp2 += elem_size; 2319 buflen -= elem_size; 2320 elem_count--; 2321 } 2322 needed += elem_size; 2323 } 2324 } 2325 pd++; 2326 if (pd->pd_list != NULL) 2327 goto again; 2328 proclist_unlock_read(); 2329 2330 if (where != NULL) { 2331 if (type == KERN_PROC) 2332 *oldlenp = (char *)dp - where; 2333 else 2334 *oldlenp = dp2 - where; 2335 if (needed > *oldlenp) { 2336 error = ENOMEM; 2337 goto out; 2338 } 2339 } else { 2340 needed += KERN_PROCSLOP; 2341 *oldlenp = needed; 2342 } 2343 if (kproc2) 2344 free(kproc2, M_TEMP); 2345 if (eproc) 2346 free(eproc, M_TEMP); 2347 return 0; 2348 cleanup: 2349 proclist_unlock_read(); 2350 out: 2351 if (kproc2) 2352 free(kproc2, M_TEMP); 2353 if (eproc) 2354 free(eproc, M_TEMP); 2355 return error; 2356 } 2357 2358 /* 2359 * sysctl helper routine for kern.proc_args pseudo-subtree. 2360 */ 2361 static int 2362 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2363 { 2364 struct ps_strings pss; 2365 struct proc *p; 2366 size_t len, i; 2367 struct uio auio; 2368 struct iovec aiov; 2369 pid_t pid; 2370 int nargv, type, error; 2371 char *arg; 2372 char **argv = NULL; 2373 char *tmp; 2374 struct vmspace *vmspace; 2375 vaddr_t psstr_addr; 2376 vaddr_t offsetn; 2377 vaddr_t offsetv; 2378 2379 if (namelen == 1 && name[0] == CTL_QUERY) 2380 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2381 2382 if (newp != NULL || namelen != 2) 2383 return (EINVAL); 2384 pid = name[0]; 2385 type = name[1]; 2386 2387 switch (type) { 2388 case KERN_PROC_ARGV: 2389 case KERN_PROC_NARGV: 2390 case KERN_PROC_ENV: 2391 case KERN_PROC_NENV: 2392 /* ok */ 2393 break; 2394 default: 2395 return (EINVAL); 2396 } 2397 2398 proclist_lock_read(); 2399 2400 /* check pid */ 2401 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2402 error = EINVAL; 2403 goto out_locked; 2404 } 2405 2406 error = kauth_authorize_process(l->l_cred, 2407 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2408 if (error) { 2409 goto out_locked; 2410 } 2411 2412 /* only root or same user change look at the environment */ 2413 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2414 if (kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2415 p, NULL, NULL, NULL)) { 2416 error = EPERM; 2417 goto out_locked; 2418 } 2419 } 2420 2421 if (oldp == NULL) { 2422 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2423 *oldlenp = sizeof (int); 2424 else 2425 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2426 error = 0; 2427 goto out_locked; 2428 } 2429 2430 /* 2431 * Zombies don't have a stack, so we can't read their psstrings. 2432 * System processes also don't have a user stack. 2433 */ 2434 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2435 error = EINVAL; 2436 goto out_locked; 2437 } 2438 2439 /* 2440 * Lock the process down in memory. 2441 */ 2442 /* XXXCDC: how should locking work here? */ 2443 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2444 error = EFAULT; 2445 goto out_locked; 2446 } 2447 2448 psstr_addr = (vaddr_t)p->p_psstr; 2449 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2450 offsetn = p->p_psnargv; 2451 offsetv = p->p_psargv; 2452 } else { 2453 offsetn = p->p_psnenv; 2454 offsetv = p->p_psenv; 2455 } 2456 vmspace = p->p_vmspace; 2457 vmspace->vm_refcnt++; /* XXX */ 2458 2459 proclist_unlock_read(); 2460 2461 /* 2462 * Allocate a temporary buffer to hold the arguments. 2463 */ 2464 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2465 2466 /* 2467 * Read in the ps_strings structure. 2468 */ 2469 aiov.iov_base = &pss; 2470 aiov.iov_len = sizeof(pss); 2471 auio.uio_iov = &aiov; 2472 auio.uio_iovcnt = 1; 2473 auio.uio_offset = psstr_addr; 2474 auio.uio_resid = sizeof(pss); 2475 auio.uio_rw = UIO_READ; 2476 UIO_SETUP_SYSSPACE(&auio); 2477 error = uvm_io(&vmspace->vm_map, &auio); 2478 if (error) 2479 goto done; 2480 2481 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2482 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2483 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2484 *oldlenp = sizeof(nargv); 2485 goto done; 2486 } 2487 /* 2488 * Now read the address of the argument vector. 2489 */ 2490 switch (type) { 2491 case KERN_PROC_ARGV: 2492 /* FALLTHROUGH */ 2493 case KERN_PROC_ENV: 2494 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2495 break; 2496 default: 2497 return (EINVAL); 2498 } 2499 2500 #ifdef COMPAT_NETBSD32 2501 if (p->p_flag & P_32) 2502 len = sizeof(netbsd32_charp) * nargv; 2503 else 2504 #endif 2505 len = sizeof(char *) * nargv; 2506 2507 argv = malloc(len, M_TEMP, M_WAITOK); 2508 2509 aiov.iov_base = argv; 2510 aiov.iov_len = len; 2511 auio.uio_iov = &aiov; 2512 auio.uio_iovcnt = 1; 2513 auio.uio_offset = (off_t)(unsigned long)tmp; 2514 auio.uio_resid = len; 2515 auio.uio_rw = UIO_READ; 2516 UIO_SETUP_SYSSPACE(&auio); 2517 error = uvm_io(&vmspace->vm_map, &auio); 2518 if (error) 2519 goto done; 2520 2521 /* 2522 * Now copy each string. 2523 */ 2524 len = 0; /* bytes written to user buffer */ 2525 for (i = 0; i < nargv; i++) { 2526 int finished = 0; 2527 vaddr_t base; 2528 size_t xlen; 2529 int j; 2530 2531 #ifdef COMPAT_NETBSD32 2532 if (p->p_flag & P_32) { 2533 netbsd32_charp *argv32; 2534 2535 argv32 = (netbsd32_charp *)argv; 2536 2537 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2538 } else 2539 #endif 2540 base = (vaddr_t)argv[i]; 2541 2542 while (!finished) { 2543 xlen = PAGE_SIZE - (base & PAGE_MASK); 2544 2545 aiov.iov_base = arg; 2546 aiov.iov_len = PAGE_SIZE; 2547 auio.uio_iov = &aiov; 2548 auio.uio_iovcnt = 1; 2549 auio.uio_offset = base; 2550 auio.uio_resid = xlen; 2551 auio.uio_rw = UIO_READ; 2552 UIO_SETUP_SYSSPACE(&auio); 2553 error = uvm_io(&vmspace->vm_map, &auio); 2554 if (error) 2555 goto done; 2556 2557 /* Look for the end of the string */ 2558 for (j = 0; j < xlen; j++) { 2559 if (arg[j] == '\0') { 2560 xlen = j + 1; 2561 finished = 1; 2562 break; 2563 } 2564 } 2565 2566 /* Check for user buffer overflow */ 2567 if (len + xlen > *oldlenp) { 2568 finished = 1; 2569 if (len > *oldlenp) 2570 xlen = 0; 2571 else 2572 xlen = *oldlenp - len; 2573 } 2574 2575 /* Copyout the page */ 2576 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2577 if (error) 2578 goto done; 2579 2580 len += xlen; 2581 base += xlen; 2582 } 2583 } 2584 *oldlenp = len; 2585 2586 done: 2587 if (argv != NULL) 2588 free(argv, M_TEMP); 2589 2590 uvmspace_free(vmspace); 2591 2592 free(arg, M_TEMP); 2593 return error; 2594 2595 out_locked: 2596 proclist_unlock_read(); 2597 return error; 2598 } 2599 2600 /* 2601 * Sysctl helper routine for Verified Exec. 2602 */ 2603 #if NVERIEXEC > 0 2604 static int 2605 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2606 { 2607 int newval, error; 2608 int *var = NULL, raise_only = 0; 2609 struct sysctlnode node; 2610 2611 node = *rnode; 2612 2613 switch (rnode->sysctl_num) { 2614 case VERIEXEC_STRICT: 2615 raise_only = 1; 2616 var = &veriexec_strict; 2617 break; 2618 case VERIEXEC_ALGORITHMS: 2619 node.sysctl_data = veriexec_fp_names; 2620 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2621 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2622 default: 2623 return (EINVAL); 2624 } 2625 2626 newval = *var; 2627 2628 node.sysctl_data = &newval; 2629 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2630 if (error || newp == NULL) { 2631 return (error); 2632 } 2633 2634 if (raise_only && (newval < *var)) 2635 return (EPERM); 2636 2637 *var = newval; 2638 2639 return (error); 2640 } 2641 #endif /* NVERIEXEC > 0 */ 2642 2643 static int 2644 sysctl_security_setidcore(SYSCTLFN_ARGS) 2645 { 2646 int newsize, error; 2647 struct sysctlnode node; 2648 2649 node = *rnode; 2650 node.sysctl_data = &newsize; 2651 newsize = *(int *)rnode->sysctl_data; 2652 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2653 if (error || newp == NULL) 2654 return error; 2655 2656 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2657 0, NULL, NULL, NULL)) 2658 return (EPERM); 2659 2660 *(int *)rnode->sysctl_data = newsize; 2661 2662 return 0; 2663 } 2664 2665 static int 2666 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2667 { 2668 int error; 2669 char *newsetidcorename; 2670 struct sysctlnode node; 2671 2672 newsetidcorename = PNBUF_GET(); 2673 node = *rnode; 2674 node.sysctl_data = newsetidcorename; 2675 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2676 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2677 if (error || newp == NULL) { 2678 goto out; 2679 } 2680 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2681 0, NULL, NULL, NULL)) { 2682 error = EPERM; 2683 goto out; 2684 } 2685 if (strlen(newsetidcorename) == 0) { 2686 error = EINVAL; 2687 goto out; 2688 } 2689 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2690 out: 2691 PNBUF_PUT(newsetidcorename); 2692 return error; 2693 } 2694 2695 /* 2696 * sysctl helper routine for kern.cp_id node. maps cpus to their 2697 * cpuids. 2698 */ 2699 static int 2700 sysctl_kern_cpid(SYSCTLFN_ARGS) 2701 { 2702 struct sysctlnode node = *rnode; 2703 2704 #ifndef MULTIPROCESSOR 2705 uint64_t id; 2706 2707 if (namelen == 1) { 2708 if (name[0] != 0) 2709 return (ENOENT); 2710 /* 2711 * you're allowed to ask for the zero'th processor 2712 */ 2713 name++; 2714 namelen--; 2715 } 2716 node.sysctl_data = &id; 2717 node.sysctl_size = sizeof(id); 2718 id = cpu_number(); 2719 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2720 2721 #else /* MULTIPROCESSOR */ 2722 uint64_t *cp_id = NULL; 2723 int error, n = sysctl_ncpus(); 2724 struct cpu_info *ci; 2725 CPU_INFO_ITERATOR cii; 2726 2727 /* 2728 * here you may either retrieve a single cpu id or the whole 2729 * set. the size you get back when probing depends on what 2730 * you ask for. 2731 */ 2732 switch (namelen) { 2733 case 0: 2734 node.sysctl_size = n * sizeof(uint64_t); 2735 n = -2; /* ALL */ 2736 break; 2737 case 1: 2738 if (name[0] < 0 || name[0] >= n) 2739 return (ENOENT); /* ENOSUCHPROCESSOR */ 2740 node.sysctl_size = sizeof(uint64_t); 2741 n = name[0]; 2742 /* 2743 * adjust these so that sysctl_lookup() will be happy 2744 */ 2745 name++; 2746 namelen--; 2747 break; 2748 default: 2749 return (EINVAL); 2750 } 2751 2752 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2753 if (cp_id == NULL) 2754 return (ENOMEM); 2755 node.sysctl_data = cp_id; 2756 memset(cp_id, 0, node.sysctl_size); 2757 2758 for (CPU_INFO_FOREACH(cii, ci)) { 2759 if (n <= 0) 2760 cp_id[0] = ci->ci_cpuid; 2761 /* 2762 * if a specific processor was requested and we just 2763 * did it, we're done here 2764 */ 2765 if (n == 0) 2766 break; 2767 /* 2768 * if doing "all", skip to next cp_id slot for next processor 2769 */ 2770 if (n == -2) 2771 cp_id++; 2772 /* 2773 * if we're doing a specific processor, we're one 2774 * processor closer 2775 */ 2776 if (n > 0) 2777 n--; 2778 } 2779 2780 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2781 free(node.sysctl_data, M_TEMP); 2782 return (error); 2783 2784 #endif /* MULTIPROCESSOR */ 2785 } 2786 2787 /* 2788 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2789 * calculate on the fly taking into account integer overflow and the 2790 * current wired count. 2791 */ 2792 static int 2793 sysctl_hw_usermem(SYSCTLFN_ARGS) 2794 { 2795 u_int ui; 2796 u_quad_t uq; 2797 struct sysctlnode node; 2798 2799 node = *rnode; 2800 switch (rnode->sysctl_num) { 2801 case HW_USERMEM: 2802 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2803 ui = UINT_MAX; 2804 else 2805 ui *= PAGE_SIZE; 2806 node.sysctl_data = &ui; 2807 break; 2808 case HW_USERMEM64: 2809 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2810 node.sysctl_data = &uq; 2811 break; 2812 default: 2813 return (EINVAL); 2814 } 2815 2816 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2817 } 2818 2819 /* 2820 * sysctl helper routine for kern.cnmagic node. pulls the old value 2821 * out, encoded, and stuffs the new value in for decoding. 2822 */ 2823 static int 2824 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2825 { 2826 char magic[CNS_LEN]; 2827 int error; 2828 struct sysctlnode node; 2829 2830 if (oldp) 2831 cn_get_magic(magic, CNS_LEN); 2832 node = *rnode; 2833 node.sysctl_data = &magic[0]; 2834 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2835 if (error || newp == NULL) 2836 return (error); 2837 2838 return (cn_set_magic(magic)); 2839 } 2840 2841 static int 2842 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2843 { 2844 int ncpu; 2845 struct sysctlnode node; 2846 2847 ncpu = sysctl_ncpus(); 2848 node = *rnode; 2849 node.sysctl_data = &ncpu; 2850 2851 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2852 } 2853 2854 2855 /* 2856 * ******************************************************************** 2857 * section 3: public helper routines that are used for more than one 2858 * node 2859 * ******************************************************************** 2860 */ 2861 2862 /* 2863 * sysctl helper routine for the kern.root_device node and some ports' 2864 * machdep.root_device nodes. 2865 */ 2866 int 2867 sysctl_root_device(SYSCTLFN_ARGS) 2868 { 2869 struct sysctlnode node; 2870 2871 node = *rnode; 2872 node.sysctl_data = root_device->dv_xname; 2873 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2874 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2875 } 2876 2877 /* 2878 * sysctl helper routine for kern.consdev, dependent on the current 2879 * state of the console. also used for machdep.console_device on some 2880 * ports. 2881 */ 2882 int 2883 sysctl_consdev(SYSCTLFN_ARGS) 2884 { 2885 dev_t consdev; 2886 struct sysctlnode node; 2887 2888 if (cn_tab != NULL) 2889 consdev = cn_tab->cn_dev; 2890 else 2891 consdev = NODEV; 2892 node = *rnode; 2893 node.sysctl_data = &consdev; 2894 node.sysctl_size = sizeof(consdev); 2895 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2896 } 2897 2898 /* 2899 * ******************************************************************** 2900 * section 4: support for some helpers 2901 * ******************************************************************** 2902 */ 2903 2904 /* 2905 * Fill in a kinfo_proc2 structure for the specified process. 2906 */ 2907 static void 2908 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2909 { 2910 struct tty *tp; 2911 struct lwp *l; 2912 struct timeval ut, st; 2913 2914 memset(ki, 0, sizeof(*ki)); 2915 2916 ki->p_paddr = PTRTOUINT64(p); 2917 ki->p_fd = PTRTOUINT64(p->p_fd); 2918 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2919 ki->p_stats = PTRTOUINT64(p->p_stats); 2920 ki->p_limit = PTRTOUINT64(p->p_limit); 2921 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2922 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2923 ki->p_sess = PTRTOUINT64(p->p_session); 2924 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2925 ki->p_ru = PTRTOUINT64(p->p_ru); 2926 2927 ki->p_eflag = 0; 2928 ki->p_exitsig = p->p_exitsig; 2929 ki->p_flag = p->p_flag; 2930 2931 ki->p_pid = p->p_pid; 2932 if (p->p_pptr) 2933 ki->p_ppid = p->p_pptr->p_pid; 2934 else 2935 ki->p_ppid = 0; 2936 ki->p_sid = p->p_session->s_sid; 2937 ki->p__pgid = p->p_pgrp->pg_id; 2938 2939 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2940 2941 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2942 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2943 ki->p_gid = kauth_cred_getegid(p->p_cred); 2944 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2945 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2946 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2947 2948 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2949 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2950 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2951 2952 ki->p_jobc = p->p_pgrp->pg_jobc; 2953 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2954 ki->p_tdev = tp->t_dev; 2955 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2956 ki->p_tsess = PTRTOUINT64(tp->t_session); 2957 } else { 2958 ki->p_tdev = NODEV; 2959 } 2960 2961 ki->p_estcpu = p->p_estcpu; 2962 ki->p_rtime_sec = p->p_rtime.tv_sec; 2963 ki->p_rtime_usec = p->p_rtime.tv_usec; 2964 ki->p_cpticks = p->p_cpticks; 2965 ki->p_pctcpu = p->p_pctcpu; 2966 2967 ki->p_uticks = p->p_uticks; 2968 ki->p_sticks = p->p_sticks; 2969 ki->p_iticks = p->p_iticks; 2970 2971 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2972 ki->p_traceflag = p->p_traceflag; 2973 2974 2975 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2976 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2977 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2978 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2979 2980 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2981 ki->p_realstat = p->p_stat; 2982 ki->p_nice = p->p_nice; 2983 2984 ki->p_xstat = p->p_xstat; 2985 ki->p_acflag = p->p_acflag; 2986 2987 strncpy(ki->p_comm, p->p_comm, 2988 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2989 2990 strncpy(ki->p_login, p->p_session->s_login, 2991 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2992 2993 ki->p_nlwps = p->p_nlwps; 2994 ki->p_nrlwps = p->p_nrlwps; 2995 ki->p_realflag = p->p_flag; 2996 2997 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2998 ki->p_vm_rssize = 0; 2999 ki->p_vm_tsize = 0; 3000 ki->p_vm_dsize = 0; 3001 ki->p_vm_ssize = 0; 3002 l = NULL; 3003 } else { 3004 struct vmspace *vm = p->p_vmspace; 3005 3006 ki->p_vm_rssize = vm_resident_count(vm); 3007 ki->p_vm_tsize = vm->vm_tsize; 3008 ki->p_vm_dsize = vm->vm_dsize; 3009 ki->p_vm_ssize = vm->vm_ssize; 3010 3011 /* Pick a "representative" LWP */ 3012 l = proc_representative_lwp(p); 3013 ki->p_forw = PTRTOUINT64(l->l_forw); 3014 ki->p_back = PTRTOUINT64(l->l_back); 3015 ki->p_addr = PTRTOUINT64(l->l_addr); 3016 ki->p_stat = l->l_stat; 3017 ki->p_flag |= l->l_flag & P_SHARED; 3018 ki->p_swtime = l->l_swtime; 3019 ki->p_slptime = l->l_slptime; 3020 if (l->l_stat == LSONPROC) { 3021 KDASSERT(l->l_cpu != NULL); 3022 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3023 } else 3024 ki->p_schedflags = 0; 3025 ki->p_holdcnt = l->l_holdcnt; 3026 ki->p_priority = l->l_priority; 3027 ki->p_usrpri = l->l_usrpri; 3028 if (l->l_wmesg) 3029 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 3030 ki->p_wchan = PTRTOUINT64(l->l_wchan); 3031 3032 } 3033 3034 if (p->p_session->s_ttyvp) 3035 ki->p_eflag |= EPROC_CTTY; 3036 if (SESS_LEADER(p)) 3037 ki->p_eflag |= EPROC_SLEADER; 3038 3039 /* XXX Is this double check necessary? */ 3040 if (P_ZOMBIE(p)) { 3041 ki->p_uvalid = 0; 3042 } else { 3043 ki->p_uvalid = 1; 3044 3045 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3046 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3047 3048 calcru(p, &ut, &st, 0); 3049 ki->p_uutime_sec = ut.tv_sec; 3050 ki->p_uutime_usec = ut.tv_usec; 3051 ki->p_ustime_sec = st.tv_sec; 3052 ki->p_ustime_usec = st.tv_usec; 3053 3054 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3055 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3056 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3057 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3058 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3059 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3060 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3061 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3062 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3063 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3064 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3065 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3066 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 3067 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 3068 3069 timeradd(&p->p_stats->p_cru.ru_utime, 3070 &p->p_stats->p_cru.ru_stime, &ut); 3071 ki->p_uctime_sec = ut.tv_sec; 3072 ki->p_uctime_usec = ut.tv_usec; 3073 } 3074 #ifdef MULTIPROCESSOR 3075 if (l && l->l_cpu != NULL) 3076 ki->p_cpuid = l->l_cpu->ci_cpuid; 3077 else 3078 #endif 3079 ki->p_cpuid = KI_NOCPU; 3080 } 3081 3082 /* 3083 * Fill in a kinfo_lwp structure for the specified lwp. 3084 */ 3085 static void 3086 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3087 { 3088 3089 kl->l_forw = PTRTOUINT64(l->l_forw); 3090 kl->l_back = PTRTOUINT64(l->l_back); 3091 kl->l_laddr = PTRTOUINT64(l); 3092 kl->l_addr = PTRTOUINT64(l->l_addr); 3093 kl->l_stat = l->l_stat; 3094 kl->l_lid = l->l_lid; 3095 kl->l_flag = l->l_flag; 3096 3097 kl->l_swtime = l->l_swtime; 3098 kl->l_slptime = l->l_slptime; 3099 if (l->l_stat == LSONPROC) { 3100 KDASSERT(l->l_cpu != NULL); 3101 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3102 } else 3103 kl->l_schedflags = 0; 3104 kl->l_holdcnt = l->l_holdcnt; 3105 kl->l_priority = l->l_priority; 3106 kl->l_usrpri = l->l_usrpri; 3107 if (l->l_wmesg) 3108 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3109 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3110 #ifdef MULTIPROCESSOR 3111 if (l->l_cpu != NULL) 3112 kl->l_cpuid = l->l_cpu->ci_cpuid; 3113 else 3114 #endif 3115 kl->l_cpuid = KI_NOCPU; 3116 } 3117 3118 /* 3119 * Fill in an eproc structure for the specified process. 3120 */ 3121 void 3122 fill_eproc(struct proc *p, struct eproc *ep) 3123 { 3124 struct tty *tp; 3125 struct lwp *l; 3126 3127 ep->e_paddr = p; 3128 ep->e_sess = p->p_session; 3129 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3130 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3131 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3132 ep->e_vm.vm_rssize = 0; 3133 ep->e_vm.vm_tsize = 0; 3134 ep->e_vm.vm_dsize = 0; 3135 ep->e_vm.vm_ssize = 0; 3136 /* ep->e_vm.vm_pmap = XXX; */ 3137 } else { 3138 struct vmspace *vm = p->p_vmspace; 3139 3140 ep->e_vm.vm_rssize = vm_resident_count(vm); 3141 ep->e_vm.vm_tsize = vm->vm_tsize; 3142 ep->e_vm.vm_dsize = vm->vm_dsize; 3143 ep->e_vm.vm_ssize = vm->vm_ssize; 3144 3145 /* Pick a "representative" LWP */ 3146 l = proc_representative_lwp(p); 3147 3148 if (l->l_wmesg) 3149 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3150 } 3151 if (p->p_pptr) 3152 ep->e_ppid = p->p_pptr->p_pid; 3153 else 3154 ep->e_ppid = 0; 3155 ep->e_pgid = p->p_pgrp->pg_id; 3156 ep->e_sid = ep->e_sess->s_sid; 3157 ep->e_jobc = p->p_pgrp->pg_jobc; 3158 if ((p->p_flag & P_CONTROLT) && 3159 (tp = ep->e_sess->s_ttyp)) { 3160 ep->e_tdev = tp->t_dev; 3161 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3162 ep->e_tsess = tp->t_session; 3163 } else 3164 ep->e_tdev = NODEV; 3165 3166 ep->e_xsize = ep->e_xrssize = 0; 3167 ep->e_xccount = ep->e_xswrss = 0; 3168 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3169 if (SESS_LEADER(p)) 3170 ep->e_flag |= EPROC_SLEADER; 3171 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3172 } 3173
Indexes created Tue Sep 23 14:10:03 GMT 2025