init_sysctl.c revision 1.85
1 /* $NetBSD: init_sysctl.c,v 1.85 2006/09/13 10:07:42 elad 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 1.85 2006/09/13 10:07:42 elad 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 "veriexec.h" 47 #include "pty.h" 48 #include "rnd.h" 49 50 #include <sys/types.h> 51 #include <sys/param.h> 52 #include <sys/sysctl.h> 53 #include <sys/errno.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 #include <sys/unistd.h> 57 #include <sys/disklabel.h> 58 #include <sys/rnd.h> 59 #include <sys/vnode.h> 60 #include <sys/mount.h> 61 #include <sys/namei.h> 62 #include <sys/msgbuf.h> 63 #include <dev/cons.h> 64 #include <sys/socketvar.h> 65 #include <sys/file.h> 66 #include <sys/filedesc.h> 67 #include <sys/tty.h> 68 #include <sys/malloc.h> 69 #include <sys/resource.h> 70 #include <sys/resourcevar.h> 71 #include <sys/exec.h> 72 #include <sys/conf.h> 73 #include <sys/device.h> 74 #if NVERIEXEC > 0 75 #define VERIEXEC_NEED_NODE 76 #include <sys/verified_exec.h> 77 #endif /* NVERIEXEC > 0 */ 78 #include <sys/stat.h> 79 #include <sys/kauth.h> 80 81 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 82 #include <sys/ipc.h> 83 #endif 84 #ifdef SYSVMSG 85 #include <sys/msg.h> 86 #endif 87 #ifdef SYSVSEM 88 #include <sys/sem.h> 89 #endif 90 #ifdef SYSVSHM 91 #include <sys/shm.h> 92 #endif 93 94 #ifdef COMPAT_NETBSD32 95 #include <compat/netbsd32/netbsd32.h> 96 #endif 97 98 #include <machine/cpu.h> 99 100 /* XXX this should not be here */ 101 int security_setidcore_dump; 102 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 103 uid_t security_setidcore_owner = 0; 104 gid_t security_setidcore_group = 0; 105 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 106 107 /* 108 * try over estimating by 5 procs/lwps 109 */ 110 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 111 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 112 113 #ifndef MULTIPROCESSOR 114 #define sysctl_ncpus() (1) 115 #else /* MULTIPROCESSOR */ 116 #ifndef CPU_INFO_FOREACH 117 #define CPU_INFO_ITERATOR int 118 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 119 #endif 120 static int 121 sysctl_ncpus(void) 122 { 123 struct cpu_info *ci; 124 CPU_INFO_ITERATOR cii; 125 126 int ncpus = 0; 127 for (CPU_INFO_FOREACH(cii, ci)) 128 ncpus++; 129 return (ncpus); 130 } 131 #endif /* MULTIPROCESSOR */ 132 133 #ifdef DIAGNOSTIC 134 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 135 #endif 136 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 137 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 138 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 139 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 140 static int sysctl_setlen(SYSCTLFN_PROTO); 141 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 142 static int sysctl_kern_file(SYSCTLFN_PROTO); 143 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 144 static int sysctl_msgbuf(SYSCTLFN_PROTO); 145 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 146 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 147 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 148 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 149 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 150 #if NPTY > 0 151 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 152 #endif /* NPTY > 0 */ 153 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 154 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 155 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 156 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 157 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 158 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 159 static int sysctl_kern_file2(SYSCTLFN_PROTO); 160 #if NVERIEXEC > 0 161 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 162 #endif /* NVERIEXEC > 0 */ 163 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 164 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 165 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 166 static int sysctl_doeproc(SYSCTLFN_PROTO); 167 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 168 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 169 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 170 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 171 172 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 173 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 174 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 175 int); 176 177 /* 178 * ******************************************************************** 179 * section 1: setup routines 180 * ******************************************************************** 181 * these functions are stuffed into a link set for sysctl setup 182 * functions. they're never called or referenced from anywhere else. 183 * ******************************************************************** 184 */ 185 186 /* 187 * sets up the base nodes... 188 */ 189 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 190 { 191 192 sysctl_createv(clog, 0, NULL, NULL, 193 CTLFLAG_PERMANENT, 194 CTLTYPE_NODE, "kern", 195 SYSCTL_DESCR("High kernel"), 196 NULL, 0, NULL, 0, 197 CTL_KERN, CTL_EOL); 198 sysctl_createv(clog, 0, NULL, NULL, 199 CTLFLAG_PERMANENT, 200 CTLTYPE_NODE, "vm", 201 SYSCTL_DESCR("Virtual memory"), 202 NULL, 0, NULL, 0, 203 CTL_VM, CTL_EOL); 204 sysctl_createv(clog, 0, NULL, NULL, 205 CTLFLAG_PERMANENT, 206 CTLTYPE_NODE, "vfs", 207 SYSCTL_DESCR("Filesystem"), 208 NULL, 0, NULL, 0, 209 CTL_VFS, CTL_EOL); 210 sysctl_createv(clog, 0, NULL, NULL, 211 CTLFLAG_PERMANENT, 212 CTLTYPE_NODE, "net", 213 SYSCTL_DESCR("Networking"), 214 NULL, 0, NULL, 0, 215 CTL_NET, CTL_EOL); 216 sysctl_createv(clog, 0, NULL, NULL, 217 CTLFLAG_PERMANENT, 218 CTLTYPE_NODE, "debug", 219 SYSCTL_DESCR("Debugging"), 220 NULL, 0, NULL, 0, 221 CTL_DEBUG, CTL_EOL); 222 sysctl_createv(clog, 0, NULL, NULL, 223 CTLFLAG_PERMANENT, 224 CTLTYPE_NODE, "hw", 225 SYSCTL_DESCR("Generic CPU, I/O"), 226 NULL, 0, NULL, 0, 227 CTL_HW, CTL_EOL); 228 sysctl_createv(clog, 0, NULL, NULL, 229 CTLFLAG_PERMANENT, 230 CTLTYPE_NODE, "machdep", 231 SYSCTL_DESCR("Machine dependent"), 232 NULL, 0, NULL, 0, 233 CTL_MACHDEP, CTL_EOL); 234 /* 235 * this node is inserted so that the sysctl nodes in libc can 236 * operate. 237 */ 238 sysctl_createv(clog, 0, NULL, NULL, 239 CTLFLAG_PERMANENT, 240 CTLTYPE_NODE, "user", 241 SYSCTL_DESCR("User-level"), 242 NULL, 0, NULL, 0, 243 CTL_USER, CTL_EOL); 244 sysctl_createv(clog, 0, NULL, NULL, 245 CTLFLAG_PERMANENT, 246 CTLTYPE_NODE, "ddb", 247 SYSCTL_DESCR("In-kernel debugger"), 248 NULL, 0, NULL, 0, 249 CTL_DDB, CTL_EOL); 250 sysctl_createv(clog, 0, NULL, NULL, 251 CTLFLAG_PERMANENT, 252 CTLTYPE_NODE, "proc", 253 SYSCTL_DESCR("Per-process"), 254 NULL, 0, NULL, 0, 255 CTL_PROC, CTL_EOL); 256 sysctl_createv(clog, 0, NULL, NULL, 257 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 258 CTLTYPE_NODE, "vendor", 259 SYSCTL_DESCR("Vendor specific"), 260 NULL, 0, NULL, 0, 261 CTL_VENDOR, CTL_EOL); 262 sysctl_createv(clog, 0, NULL, NULL, 263 CTLFLAG_PERMANENT, 264 CTLTYPE_NODE, "emul", 265 SYSCTL_DESCR("Emulation settings"), 266 NULL, 0, NULL, 0, 267 CTL_EMUL, CTL_EOL); 268 sysctl_createv(clog, 0, NULL, NULL, 269 CTLFLAG_PERMANENT, 270 CTLTYPE_NODE, "security", 271 SYSCTL_DESCR("Security"), 272 NULL, 0, NULL, 0, 273 CTL_SECURITY, CTL_EOL); 274 } 275 276 /* 277 * this setup routine is a replacement for kern_sysctl() 278 */ 279 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 280 { 281 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 282 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 283 extern int dumponpanic; /* defined in kern/subr_prf.c */ 284 const struct sysctlnode *rnode; 285 286 sysctl_createv(clog, 0, NULL, NULL, 287 CTLFLAG_PERMANENT, 288 CTLTYPE_NODE, "kern", NULL, 289 NULL, 0, NULL, 0, 290 CTL_KERN, CTL_EOL); 291 292 sysctl_createv(clog, 0, NULL, NULL, 293 CTLFLAG_PERMANENT, 294 CTLTYPE_STRING, "ostype", 295 SYSCTL_DESCR("Operating system type"), 296 NULL, 0, &ostype, 0, 297 CTL_KERN, KERN_OSTYPE, CTL_EOL); 298 sysctl_createv(clog, 0, NULL, NULL, 299 CTLFLAG_PERMANENT, 300 CTLTYPE_STRING, "osrelease", 301 SYSCTL_DESCR("Operating system release"), 302 NULL, 0, &osrelease, 0, 303 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 304 sysctl_createv(clog, 0, NULL, NULL, 305 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 306 CTLTYPE_INT, "osrevision", 307 SYSCTL_DESCR("Operating system revision"), 308 NULL, __NetBSD_Version__, NULL, 0, 309 CTL_KERN, KERN_OSREV, CTL_EOL); 310 sysctl_createv(clog, 0, NULL, NULL, 311 CTLFLAG_PERMANENT, 312 CTLTYPE_STRING, "version", 313 SYSCTL_DESCR("Kernel version"), 314 NULL, 0, &version, 0, 315 CTL_KERN, KERN_VERSION, CTL_EOL); 316 sysctl_createv(clog, 0, NULL, NULL, 317 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 318 CTLTYPE_INT, "maxvnodes", 319 SYSCTL_DESCR("Maximum number of vnodes"), 320 sysctl_kern_maxvnodes, 0, NULL, 0, 321 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 322 sysctl_createv(clog, 0, NULL, NULL, 323 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 324 CTLTYPE_INT, "maxproc", 325 SYSCTL_DESCR("Maximum number of simultaneous processes"), 326 sysctl_kern_maxproc, 0, NULL, 0, 327 CTL_KERN, KERN_MAXPROC, CTL_EOL); 328 sysctl_createv(clog, 0, NULL, NULL, 329 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 330 CTLTYPE_INT, "maxfiles", 331 SYSCTL_DESCR("Maximum number of open files"), 332 NULL, 0, &maxfiles, 0, 333 CTL_KERN, KERN_MAXFILES, CTL_EOL); 334 sysctl_createv(clog, 0, NULL, NULL, 335 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 336 CTLTYPE_INT, "argmax", 337 SYSCTL_DESCR("Maximum number of bytes of arguments to " 338 "execve(2)"), 339 NULL, ARG_MAX, NULL, 0, 340 CTL_KERN, KERN_ARGMAX, CTL_EOL); 341 sysctl_createv(clog, 0, NULL, NULL, 342 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 343 CTLTYPE_STRING, "hostname", 344 SYSCTL_DESCR("System hostname"), 345 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 346 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 347 sysctl_createv(clog, 0, NULL, NULL, 348 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 349 CTLTYPE_INT, "hostid", 350 SYSCTL_DESCR("System host ID number"), 351 sysctl_kern_hostid, 0, NULL, 0, 352 CTL_KERN, KERN_HOSTID, CTL_EOL); 353 sysctl_createv(clog, 0, NULL, NULL, 354 CTLFLAG_PERMANENT, 355 CTLTYPE_STRUCT, "clockrate", 356 SYSCTL_DESCR("Kernel clock rates"), 357 sysctl_kern_clockrate, 0, NULL, 358 sizeof(struct clockinfo), 359 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 360 sysctl_createv(clog, 0, NULL, NULL, 361 CTLFLAG_PERMANENT, 362 CTLTYPE_INT, "hardclock_ticks", 363 SYSCTL_DESCR("Number of hardclock ticks"), 364 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 365 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 366 sysctl_createv(clog, 0, NULL, NULL, 367 CTLFLAG_PERMANENT, 368 CTLTYPE_STRUCT, "vnode", 369 SYSCTL_DESCR("System vnode table"), 370 sysctl_kern_vnode, 0, NULL, 0, 371 CTL_KERN, KERN_VNODE, CTL_EOL); 372 sysctl_createv(clog, 0, NULL, NULL, 373 CTLFLAG_PERMANENT, 374 CTLTYPE_STRUCT, "file", 375 SYSCTL_DESCR("System open file table"), 376 sysctl_kern_file, 0, NULL, 0, 377 CTL_KERN, KERN_FILE, CTL_EOL); 378 #ifndef GPROF 379 sysctl_createv(clog, 0, NULL, NULL, 380 CTLFLAG_PERMANENT, 381 CTLTYPE_NODE, "profiling", 382 SYSCTL_DESCR("Profiling information (not available)"), 383 sysctl_notavail, 0, NULL, 0, 384 CTL_KERN, KERN_PROF, CTL_EOL); 385 #endif 386 sysctl_createv(clog, 0, NULL, NULL, 387 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 388 CTLTYPE_INT, "posix1version", 389 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 390 "with which the operating system attempts " 391 "to comply"), 392 NULL, _POSIX_VERSION, NULL, 0, 393 CTL_KERN, KERN_POSIX1, CTL_EOL); 394 sysctl_createv(clog, 0, NULL, NULL, 395 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 396 CTLTYPE_INT, "ngroups", 397 SYSCTL_DESCR("Maximum number of supplemental groups"), 398 NULL, NGROUPS_MAX, NULL, 0, 399 CTL_KERN, KERN_NGROUPS, CTL_EOL); 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 402 CTLTYPE_INT, "job_control", 403 SYSCTL_DESCR("Whether job control is available"), 404 NULL, 1, NULL, 0, 405 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 406 sysctl_createv(clog, 0, NULL, NULL, 407 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 408 CTLTYPE_INT, "saved_ids", 409 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 410 "available"), NULL, 411 #ifdef _POSIX_SAVED_IDS 412 1, 413 #else /* _POSIX_SAVED_IDS */ 414 0, 415 #endif /* _POSIX_SAVED_IDS */ 416 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 417 sysctl_createv(clog, 0, NULL, NULL, 418 CTLFLAG_PERMANENT, 419 CTLTYPE_STRUCT, "boottime", 420 SYSCTL_DESCR("System boot time"), 421 NULL, 0, &boottime, sizeof(boottime), 422 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 423 sysctl_createv(clog, 0, NULL, NULL, 424 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 425 CTLTYPE_STRING, "domainname", 426 SYSCTL_DESCR("YP domain name"), 427 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 428 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 429 sysctl_createv(clog, 0, NULL, NULL, 430 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 431 CTLTYPE_INT, "maxpartitions", 432 SYSCTL_DESCR("Maximum number of partitions allowed per " 433 "disk"), 434 NULL, MAXPARTITIONS, NULL, 0, 435 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 436 sysctl_createv(clog, 0, NULL, NULL, 437 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 438 CTLTYPE_INT, "rawpartition", 439 SYSCTL_DESCR("Raw partition of a disk"), 440 NULL, RAW_PART, NULL, 0, 441 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 442 sysctl_createv(clog, 0, NULL, NULL, 443 CTLFLAG_PERMANENT, 444 CTLTYPE_STRUCT, "timex", NULL, 445 sysctl_notavail, 0, NULL, 0, 446 CTL_KERN, KERN_TIMEX, CTL_EOL); 447 sysctl_createv(clog, 0, NULL, NULL, 448 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 449 CTLTYPE_INT, "autonicetime", 450 SYSCTL_DESCR("CPU clock seconds before non-root " 451 "process priority is lowered"), 452 sysctl_kern_autonice, 0, &autonicetime, 0, 453 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 454 sysctl_createv(clog, 0, NULL, NULL, 455 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 456 CTLTYPE_INT, "autoniceval", 457 SYSCTL_DESCR("Automatic reniced non-root process " 458 "priority"), 459 sysctl_kern_autonice, 0, &autoniceval, 0, 460 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 461 sysctl_createv(clog, 0, NULL, NULL, 462 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 463 CTLTYPE_INT, "rtc_offset", 464 SYSCTL_DESCR("Offset of real time clock from UTC in " 465 "minutes"), 466 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 467 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 468 sysctl_createv(clog, 0, NULL, NULL, 469 CTLFLAG_PERMANENT, 470 CTLTYPE_STRING, "root_device", 471 SYSCTL_DESCR("Name of the root device"), 472 sysctl_root_device, 0, NULL, 0, 473 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 474 sysctl_createv(clog, 0, NULL, NULL, 475 CTLFLAG_PERMANENT, 476 CTLTYPE_INT, "msgbufsize", 477 SYSCTL_DESCR("Size of the kernel message buffer"), 478 sysctl_msgbuf, 0, NULL, 0, 479 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 480 sysctl_createv(clog, 0, NULL, NULL, 481 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 482 CTLTYPE_INT, "fsync", 483 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 484 "Synchronization Option is available on " 485 "this system"), 486 NULL, 1, NULL, 0, 487 CTL_KERN, KERN_FSYNC, CTL_EOL); 488 sysctl_createv(clog, 0, NULL, NULL, 489 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 490 CTLTYPE_INT, "sysvmsg", 491 SYSCTL_DESCR("System V style message support available"), 492 NULL, 493 #ifdef SYSVMSG 494 1, 495 #else /* SYSVMSG */ 496 0, 497 #endif /* SYSVMSG */ 498 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 499 sysctl_createv(clog, 0, NULL, NULL, 500 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 501 CTLTYPE_INT, "sysvsem", 502 SYSCTL_DESCR("System V style semaphore support " 503 "available"), NULL, 504 #ifdef SYSVSEM 505 1, 506 #else /* SYSVSEM */ 507 0, 508 #endif /* SYSVSEM */ 509 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 510 sysctl_createv(clog, 0, NULL, NULL, 511 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 512 CTLTYPE_INT, "sysvshm", 513 SYSCTL_DESCR("System V style shared memory support " 514 "available"), NULL, 515 #ifdef SYSVSHM 516 1, 517 #else /* SYSVSHM */ 518 0, 519 #endif /* SYSVSHM */ 520 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 521 sysctl_createv(clog, 0, NULL, NULL, 522 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 523 CTLTYPE_INT, "synchronized_io", 524 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 525 "I/O Option is available on this system"), 526 NULL, 1, NULL, 0, 527 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 528 sysctl_createv(clog, 0, NULL, NULL, 529 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 530 CTLTYPE_INT, "iov_max", 531 SYSCTL_DESCR("Maximum number of iovec structures per " 532 "process"), 533 NULL, IOV_MAX, NULL, 0, 534 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 535 sysctl_createv(clog, 0, NULL, NULL, 536 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 537 CTLTYPE_INT, "mapped_files", 538 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 539 "Files Option is available on this system"), 540 NULL, 1, NULL, 0, 541 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 542 sysctl_createv(clog, 0, NULL, NULL, 543 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 544 CTLTYPE_INT, "memlock", 545 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 546 "Locking Option is available on this " 547 "system"), 548 NULL, 1, NULL, 0, 549 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 550 sysctl_createv(clog, 0, NULL, NULL, 551 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 552 CTLTYPE_INT, "memlock_range", 553 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 554 "Locking Option is available on this " 555 "system"), 556 NULL, 1, NULL, 0, 557 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 558 sysctl_createv(clog, 0, NULL, NULL, 559 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 560 CTLTYPE_INT, "memory_protection", 561 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 562 "Protection Option is available on this " 563 "system"), 564 NULL, 1, NULL, 0, 565 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 566 sysctl_createv(clog, 0, NULL, NULL, 567 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 568 CTLTYPE_INT, "login_name_max", 569 SYSCTL_DESCR("Maximum login name length"), 570 NULL, LOGIN_NAME_MAX, NULL, 0, 571 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 574 CTLTYPE_STRING, "defcorename", 575 SYSCTL_DESCR("Default core file name"), 576 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 577 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 580 CTLTYPE_INT, "logsigexit", 581 SYSCTL_DESCR("Log process exit when caused by signals"), 582 NULL, 0, &kern_logsigexit, 0, 583 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 584 sysctl_createv(clog, 0, NULL, NULL, 585 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 586 CTLTYPE_INT, "fscale", 587 SYSCTL_DESCR("Kernel fixed-point scale factor"), 588 NULL, FSCALE, NULL, 0, 589 CTL_KERN, KERN_FSCALE, CTL_EOL); 590 sysctl_createv(clog, 0, NULL, NULL, 591 CTLFLAG_PERMANENT, 592 CTLTYPE_INT, "ccpu", 593 SYSCTL_DESCR("Scheduler exponential decay value"), 594 NULL, 0, &ccpu, 0, 595 CTL_KERN, KERN_CCPU, CTL_EOL); 596 sysctl_createv(clog, 0, NULL, NULL, 597 CTLFLAG_PERMANENT, 598 CTLTYPE_STRUCT, "cp_time", 599 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 600 sysctl_kern_cptime, 0, NULL, 0, 601 CTL_KERN, KERN_CP_TIME, CTL_EOL); 602 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 603 sysctl_createv(clog, 0, NULL, NULL, 604 CTLFLAG_PERMANENT, 605 CTLTYPE_STRUCT, "sysvipc_info", 606 SYSCTL_DESCR("System V style IPC information"), 607 sysctl_kern_sysvipc, 0, NULL, 0, 608 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 609 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 610 sysctl_createv(clog, 0, NULL, NULL, 611 CTLFLAG_PERMANENT, 612 CTLTYPE_INT, "msgbuf", 613 SYSCTL_DESCR("Kernel message buffer"), 614 sysctl_msgbuf, 0, NULL, 0, 615 CTL_KERN, KERN_MSGBUF, CTL_EOL); 616 sysctl_createv(clog, 0, NULL, NULL, 617 CTLFLAG_PERMANENT, 618 CTLTYPE_STRUCT, "consdev", 619 SYSCTL_DESCR("Console device"), 620 sysctl_consdev, 0, NULL, sizeof(dev_t), 621 CTL_KERN, KERN_CONSDEV, CTL_EOL); 622 #if NPTY > 0 623 sysctl_createv(clog, 0, NULL, NULL, 624 CTLFLAG_PERMANENT, 625 CTLTYPE_INT, "maxptys", 626 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 627 sysctl_kern_maxptys, 0, NULL, 0, 628 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 629 #endif /* NPTY > 0 */ 630 sysctl_createv(clog, 0, NULL, NULL, 631 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 632 CTLTYPE_INT, "maxphys", 633 SYSCTL_DESCR("Maximum raw I/O transfer size"), 634 NULL, MAXPHYS, NULL, 0, 635 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 636 sysctl_createv(clog, 0, NULL, NULL, 637 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 638 CTLTYPE_INT, "sbmax", 639 SYSCTL_DESCR("Maximum socket buffer size"), 640 sysctl_kern_sbmax, 0, NULL, 0, 641 CTL_KERN, KERN_SBMAX, CTL_EOL); 642 sysctl_createv(clog, 0, NULL, NULL, 643 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 644 CTLTYPE_INT, "monotonic_clock", 645 SYSCTL_DESCR("Implementation version of the POSIX " 646 "1003.1b Monotonic Clock Option"), 647 /* XXX _POSIX_VERSION */ 648 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 649 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 650 sysctl_createv(clog, 0, NULL, NULL, 651 CTLFLAG_PERMANENT, 652 CTLTYPE_INT, "urandom", 653 SYSCTL_DESCR("Random integer value"), 654 sysctl_kern_urnd, 0, NULL, 0, 655 CTL_KERN, KERN_URND, CTL_EOL); 656 sysctl_createv(clog, 0, NULL, NULL, 657 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 658 CTLTYPE_INT, "labelsector", 659 SYSCTL_DESCR("Sector number containing the disklabel"), 660 NULL, LABELSECTOR, NULL, 0, 661 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 662 sysctl_createv(clog, 0, NULL, NULL, 663 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 664 CTLTYPE_INT, "labeloffset", 665 SYSCTL_DESCR("Offset of the disklabel within the " 666 "sector"), 667 NULL, LABELOFFSET, NULL, 0, 668 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 669 sysctl_createv(clog, 0, NULL, NULL, 670 CTLFLAG_PERMANENT, 671 CTLTYPE_NODE, "lwp", 672 SYSCTL_DESCR("System-wide LWP information"), 673 sysctl_kern_lwp, 0, NULL, 0, 674 CTL_KERN, KERN_LWP, CTL_EOL); 675 sysctl_createv(clog, 0, NULL, NULL, 676 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 677 CTLTYPE_INT, "forkfsleep", 678 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 679 "to process limits"), 680 sysctl_kern_forkfsleep, 0, NULL, 0, 681 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 682 sysctl_createv(clog, 0, NULL, NULL, 683 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 684 CTLTYPE_INT, "posix_threads", 685 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 686 "Threads option to which the system " 687 "attempts to conform"), 688 /* XXX _POSIX_VERSION */ 689 NULL, _POSIX_THREADS, NULL, 0, 690 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 691 sysctl_createv(clog, 0, NULL, NULL, 692 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 693 CTLTYPE_INT, "posix_semaphores", 694 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 695 "Semaphores option to which the system " 696 "attempts to conform"), NULL, 697 #ifdef P1003_1B_SEMAPHORE 698 200112, 699 #else /* P1003_1B_SEMAPHORE */ 700 0, 701 #endif /* P1003_1B_SEMAPHORE */ 702 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 703 sysctl_createv(clog, 0, NULL, NULL, 704 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 705 CTLTYPE_INT, "posix_barriers", 706 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 707 "Barriers option to which the system " 708 "attempts to conform"), 709 /* XXX _POSIX_VERSION */ 710 NULL, _POSIX_BARRIERS, NULL, 0, 711 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 712 sysctl_createv(clog, 0, NULL, NULL, 713 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 714 CTLTYPE_INT, "posix_timers", 715 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 716 "Timers option to which the system " 717 "attempts to conform"), 718 /* XXX _POSIX_VERSION */ 719 NULL, _POSIX_TIMERS, NULL, 0, 720 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 721 sysctl_createv(clog, 0, NULL, NULL, 722 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 723 CTLTYPE_INT, "posix_spin_locks", 724 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 725 "Locks option to which the system attempts " 726 "to conform"), 727 /* XXX _POSIX_VERSION */ 728 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 729 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 730 sysctl_createv(clog, 0, NULL, NULL, 731 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 732 CTLTYPE_INT, "posix_reader_writer_locks", 733 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 734 "Read-Write Locks option to which the " 735 "system attempts to conform"), 736 /* XXX _POSIX_VERSION */ 737 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 738 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 739 sysctl_createv(clog, 0, NULL, NULL, 740 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 741 CTLTYPE_INT, "dump_on_panic", 742 SYSCTL_DESCR("Perform a crash dump on system panic"), 743 NULL, 0, &dumponpanic, 0, 744 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 745 #ifdef DIAGNOSTIC 746 sysctl_createv(clog, 0, NULL, NULL, 747 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 748 CTLTYPE_INT, "panic_now", 749 SYSCTL_DESCR("Trigger a panic"), 750 sysctl_kern_trigger_panic, 0, NULL, 0, 751 CTL_KERN, CTL_CREATE, CTL_EOL); 752 #endif 753 sysctl_createv(clog, 0, NULL, NULL, 754 CTLFLAG_PERMANENT, 755 CTLTYPE_INT, "root_partition", 756 SYSCTL_DESCR("Root partition on the root device"), 757 sysctl_kern_root_partition, 0, NULL, 0, 758 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 759 sysctl_createv(clog, 0, NULL, NULL, 760 CTLFLAG_PERMANENT, 761 CTLTYPE_STRUCT, "drivers", 762 SYSCTL_DESCR("List of all drivers with block and " 763 "character device numbers"), 764 sysctl_kern_drivers, 0, NULL, 0, 765 CTL_KERN, KERN_DRIVERS, CTL_EOL); 766 sysctl_createv(clog, 0, NULL, NULL, 767 CTLFLAG_PERMANENT, 768 CTLTYPE_STRUCT, "file2", 769 SYSCTL_DESCR("System open file table"), 770 sysctl_kern_file2, 0, NULL, 0, 771 CTL_KERN, KERN_FILE2, CTL_EOL); 772 #if NVERIEXEC > 0 773 sysctl_createv(clog, 0, NULL, NULL, 774 CTLFLAG_PERMANENT, 775 CTLTYPE_NODE, "veriexec", 776 SYSCTL_DESCR("Verified Exec"), 777 NULL, 0, NULL, 0, 778 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 779 sysctl_createv(clog, 0, NULL, NULL, 780 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 781 CTLTYPE_INT, "verbose", 782 SYSCTL_DESCR("Verified Exec verbose level"), 783 NULL, 0, &veriexec_verbose, 0, 784 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 785 CTL_EOL); 786 sysctl_createv(clog, 0, NULL, NULL, 787 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 788 CTLTYPE_INT, "strict", 789 SYSCTL_DESCR("Verified Exec strict level"), 790 sysctl_kern_veriexec, 0, NULL, 0, 791 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 792 sysctl_createv(clog, 0, NULL, NULL, 793 CTLFLAG_PERMANENT, 794 CTLTYPE_STRING, "algorithms", 795 SYSCTL_DESCR("Verified Exec supported hashing " 796 "algorithms"), 797 sysctl_kern_veriexec, 0, NULL, 0, 798 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 799 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 800 CTLFLAG_PERMANENT, 801 CTLTYPE_NODE, "count", 802 SYSCTL_DESCR("Number of fingerprints on device(s)"), 803 NULL, 0, NULL, 0, 804 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 805 #endif /* NVERIEXEC > 0 */ 806 sysctl_createv(clog, 0, NULL, NULL, 807 CTLFLAG_PERMANENT, 808 CTLTYPE_STRUCT, "cp_id", 809 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 810 sysctl_kern_cpid, 0, NULL, 0, 811 CTL_KERN, KERN_CP_ID, CTL_EOL); 812 813 sysctl_createv(clog, 0, NULL, &rnode, 814 CTLFLAG_PERMANENT, 815 CTLTYPE_NODE, "coredump", 816 SYSCTL_DESCR("Coredump settings."), 817 NULL, 0, NULL, 0, 818 CTL_KERN, CTL_CREATE, CTL_EOL); 819 sysctl_createv(clog, 0, &rnode, &rnode, 820 CTLFLAG_PERMANENT, 821 CTLTYPE_NODE, "setid", 822 SYSCTL_DESCR("Set-id processes' coredump settings."), 823 NULL, 0, NULL, 0, 824 CTL_CREATE, CTL_EOL); 825 sysctl_createv(clog, 0, &rnode, NULL, 826 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 827 CTLTYPE_INT, "dump", 828 SYSCTL_DESCR("Allow set-id processes to dump core."), 829 sysctl_security_setidcore, 0, &security_setidcore_dump, 830 sizeof(security_setidcore_dump), 831 CTL_CREATE, CTL_EOL); 832 sysctl_createv(clog, 0, &rnode, NULL, 833 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 834 CTLTYPE_STRING, "path", 835 SYSCTL_DESCR("Path pattern for set-id coredumps."), 836 sysctl_security_setidcorename, 0, 837 &security_setidcore_path, 838 sizeof(security_setidcore_path), 839 CTL_CREATE, CTL_EOL); 840 sysctl_createv(clog, 0, &rnode, NULL, 841 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 842 CTLTYPE_INT, "owner", 843 SYSCTL_DESCR("Owner id for set-id processes' cores."), 844 sysctl_security_setidcore, 0, &security_setidcore_owner, 845 0, 846 CTL_CREATE, CTL_EOL); 847 sysctl_createv(clog, 0, &rnode, NULL, 848 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 849 CTLTYPE_INT, "group", 850 SYSCTL_DESCR("Group id for set-id processes' cores."), 851 sysctl_security_setidcore, 0, &security_setidcore_group, 852 0, 853 CTL_CREATE, CTL_EOL); 854 sysctl_createv(clog, 0, &rnode, NULL, 855 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 856 CTLTYPE_INT, "mode", 857 SYSCTL_DESCR("Mode for set-id processes' cores."), 858 sysctl_security_setidcore, 0, &security_setidcore_mode, 859 0, 860 CTL_CREATE, CTL_EOL); 861 } 862 863 SYSCTL_SETUP(sysctl_kern_proc_setup, 864 "sysctl kern.proc/proc2/proc_args subtree setup") 865 { 866 867 sysctl_createv(clog, 0, NULL, NULL, 868 CTLFLAG_PERMANENT, 869 CTLTYPE_NODE, "kern", NULL, 870 NULL, 0, NULL, 0, 871 CTL_KERN, CTL_EOL); 872 873 sysctl_createv(clog, 0, NULL, NULL, 874 CTLFLAG_PERMANENT, 875 CTLTYPE_NODE, "proc", 876 SYSCTL_DESCR("System-wide process information"), 877 sysctl_doeproc, 0, NULL, 0, 878 CTL_KERN, KERN_PROC, CTL_EOL); 879 sysctl_createv(clog, 0, NULL, NULL, 880 CTLFLAG_PERMANENT, 881 CTLTYPE_NODE, "proc2", 882 SYSCTL_DESCR("Machine-independent process information"), 883 sysctl_doeproc, 0, NULL, 0, 884 CTL_KERN, KERN_PROC2, CTL_EOL); 885 sysctl_createv(clog, 0, NULL, NULL, 886 CTLFLAG_PERMANENT, 887 CTLTYPE_NODE, "proc_args", 888 SYSCTL_DESCR("Process argument information"), 889 sysctl_kern_proc_args, 0, NULL, 0, 890 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 891 892 /* 893 "nodes" under these: 894 895 KERN_PROC_ALL 896 KERN_PROC_PID pid 897 KERN_PROC_PGRP pgrp 898 KERN_PROC_SESSION sess 899 KERN_PROC_TTY tty 900 KERN_PROC_UID uid 901 KERN_PROC_RUID uid 902 KERN_PROC_GID gid 903 KERN_PROC_RGID gid 904 905 all in all, probably not worth the effort... 906 */ 907 } 908 909 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 910 { 911 u_int u; 912 u_quad_t q; 913 914 sysctl_createv(clog, 0, NULL, NULL, 915 CTLFLAG_PERMANENT, 916 CTLTYPE_NODE, "hw", NULL, 917 NULL, 0, NULL, 0, 918 CTL_HW, CTL_EOL); 919 920 sysctl_createv(clog, 0, NULL, NULL, 921 CTLFLAG_PERMANENT, 922 CTLTYPE_STRING, "machine", 923 SYSCTL_DESCR("Machine class"), 924 NULL, 0, machine, 0, 925 CTL_HW, HW_MACHINE, CTL_EOL); 926 sysctl_createv(clog, 0, NULL, NULL, 927 CTLFLAG_PERMANENT, 928 CTLTYPE_STRING, "model", 929 SYSCTL_DESCR("Machine model"), 930 NULL, 0, cpu_model, 0, 931 CTL_HW, HW_MODEL, CTL_EOL); 932 sysctl_createv(clog, 0, NULL, NULL, 933 CTLFLAG_PERMANENT, 934 CTLTYPE_INT, "ncpu", 935 SYSCTL_DESCR("Number of active CPUs"), 936 sysctl_hw_ncpu, 0, NULL, 0, 937 CTL_HW, HW_NCPU, CTL_EOL); 938 sysctl_createv(clog, 0, NULL, NULL, 939 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 940 CTLTYPE_INT, "byteorder", 941 SYSCTL_DESCR("System byte order"), 942 NULL, BYTE_ORDER, NULL, 0, 943 CTL_HW, HW_BYTEORDER, CTL_EOL); 944 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 945 UINT_MAX : physmem * PAGE_SIZE; 946 sysctl_createv(clog, 0, NULL, NULL, 947 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 948 CTLTYPE_INT, "physmem", 949 SYSCTL_DESCR("Bytes of physical memory"), 950 NULL, u, NULL, 0, 951 CTL_HW, HW_PHYSMEM, CTL_EOL); 952 sysctl_createv(clog, 0, NULL, NULL, 953 CTLFLAG_PERMANENT, 954 CTLTYPE_INT, "usermem", 955 SYSCTL_DESCR("Bytes of non-kernel memory"), 956 sysctl_hw_usermem, 0, NULL, 0, 957 CTL_HW, HW_USERMEM, CTL_EOL); 958 sysctl_createv(clog, 0, NULL, NULL, 959 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 960 CTLTYPE_INT, "pagesize", 961 SYSCTL_DESCR("Software page size"), 962 NULL, PAGE_SIZE, NULL, 0, 963 CTL_HW, HW_PAGESIZE, CTL_EOL); 964 sysctl_createv(clog, 0, NULL, NULL, 965 CTLFLAG_PERMANENT, 966 CTLTYPE_STRING, "machine_arch", 967 SYSCTL_DESCR("Machine CPU class"), 968 NULL, 0, machine_arch, 0, 969 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 970 sysctl_createv(clog, 0, NULL, NULL, 971 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 972 CTLTYPE_INT, "alignbytes", 973 SYSCTL_DESCR("Alignment constraint for all possible " 974 "data types"), 975 NULL, ALIGNBYTES, NULL, 0, 976 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 977 sysctl_createv(clog, 0, NULL, NULL, 978 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 979 CTLTYPE_STRING, "cnmagic", 980 SYSCTL_DESCR("Console magic key sequence"), 981 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 982 CTL_HW, HW_CNMAGIC, CTL_EOL); 983 q = (u_quad_t)physmem * PAGE_SIZE; 984 sysctl_createv(clog, 0, NULL, NULL, 985 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 986 CTLTYPE_QUAD, "physmem64", 987 SYSCTL_DESCR("Bytes of physical memory"), 988 NULL, q, NULL, 0, 989 CTL_HW, HW_PHYSMEM64, CTL_EOL); 990 sysctl_createv(clog, 0, NULL, NULL, 991 CTLFLAG_PERMANENT, 992 CTLTYPE_QUAD, "usermem64", 993 SYSCTL_DESCR("Bytes of non-kernel memory"), 994 sysctl_hw_usermem, 0, NULL, 0, 995 CTL_HW, HW_USERMEM64, CTL_EOL); 996 } 997 998 #ifdef DEBUG 999 /* 1000 * Debugging related system variables. 1001 */ 1002 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1003 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1004 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1005 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1006 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1007 &debug0, &debug1, &debug2, &debug3, &debug4, 1008 &debug5, &debug6, &debug7, &debug8, &debug9, 1009 &debug10, &debug11, &debug12, &debug13, &debug14, 1010 &debug15, &debug16, &debug17, &debug18, &debug19, 1011 }; 1012 1013 /* 1014 * this setup routine is a replacement for debug_sysctl() 1015 * 1016 * note that it creates several nodes per defined debug variable 1017 */ 1018 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1019 { 1020 struct ctldebug *cdp; 1021 char nodename[20]; 1022 int i; 1023 1024 /* 1025 * two ways here: 1026 * 1027 * the "old" way (debug.name -> value) which was emulated by 1028 * the sysctl(8) binary 1029 * 1030 * the new way, which the sysctl(8) binary was actually using 1031 1032 node debug 1033 node debug.0 1034 string debug.0.name 1035 int debug.0.value 1036 int debug.name 1037 1038 */ 1039 1040 sysctl_createv(clog, 0, NULL, NULL, 1041 CTLFLAG_PERMANENT, 1042 CTLTYPE_NODE, "debug", NULL, 1043 NULL, 0, NULL, 0, 1044 CTL_DEBUG, CTL_EOL); 1045 1046 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1047 cdp = debugvars[i]; 1048 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1049 continue; 1050 1051 snprintf(nodename, sizeof(nodename), "debug%d", i); 1052 sysctl_createv(clog, 0, NULL, NULL, 1053 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1054 CTLTYPE_NODE, nodename, NULL, 1055 NULL, 0, NULL, 0, 1056 CTL_DEBUG, i, CTL_EOL); 1057 sysctl_createv(clog, 0, NULL, NULL, 1058 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1059 CTLTYPE_STRING, "name", NULL, 1060 /*XXXUNCONST*/ 1061 NULL, 0, __UNCONST(cdp->debugname), 0, 1062 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1063 sysctl_createv(clog, 0, NULL, NULL, 1064 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1065 CTLTYPE_INT, "value", NULL, 1066 NULL, 0, cdp->debugvar, 0, 1067 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1068 sysctl_createv(clog, 0, NULL, NULL, 1069 CTLFLAG_PERMANENT, 1070 CTLTYPE_INT, cdp->debugname, NULL, 1071 NULL, 0, cdp->debugvar, 0, 1072 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1073 } 1074 } 1075 #endif /* DEBUG */ 1076 1077 /* 1078 * ******************************************************************** 1079 * section 2: private node-specific helper routines. 1080 * ******************************************************************** 1081 */ 1082 1083 #ifdef DIAGNOSTIC 1084 static int 1085 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1086 { 1087 int newtrig, error; 1088 struct sysctlnode node; 1089 1090 newtrig = 0; 1091 node = *rnode; 1092 node.sysctl_data = &newtrig; 1093 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1094 if (error || newp == NULL) 1095 return (error); 1096 1097 if (newtrig != 0) 1098 panic("Panic triggered"); 1099 1100 return (error); 1101 } 1102 #endif 1103 1104 /* 1105 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1106 * new value is lower than desiredvnodes and then calls reinit 1107 * routines that needs to adjust to the new value. 1108 */ 1109 static int 1110 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1111 { 1112 int error, new_vnodes, old_vnodes; 1113 struct sysctlnode node; 1114 1115 new_vnodes = desiredvnodes; 1116 node = *rnode; 1117 node.sysctl_data = &new_vnodes; 1118 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1119 if (error || newp == NULL) 1120 return (error); 1121 1122 old_vnodes = desiredvnodes; 1123 desiredvnodes = new_vnodes; 1124 if (new_vnodes < old_vnodes) { 1125 error = vfs_drainvnodes(new_vnodes, l); 1126 if (error) { 1127 desiredvnodes = old_vnodes; 1128 return (error); 1129 } 1130 } 1131 vfs_reinit(); 1132 nchreinit(); 1133 1134 return (0); 1135 } 1136 1137 /* 1138 * sysctl helper routine for rtc_offset - set time after changes 1139 */ 1140 static int 1141 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1142 { 1143 struct timespec ts, delta; 1144 int error, new_rtc_offset; 1145 struct sysctlnode node; 1146 1147 new_rtc_offset = rtc_offset; 1148 node = *rnode; 1149 node.sysctl_data = &new_rtc_offset; 1150 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1151 if (error || newp == NULL) 1152 return (error); 1153 1154 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1155 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1156 (void *)(u_long)new_rtc_offset, NULL, NULL)) 1157 return (EPERM); 1158 if (rtc_offset == new_rtc_offset) 1159 return (0); 1160 1161 /* if we change the offset, adjust the time */ 1162 nanotime(&ts); 1163 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1164 delta.tv_nsec = 0; 1165 timespecadd(&ts, &delta, &ts); 1166 rtc_offset = new_rtc_offset; 1167 settime(l->l_proc, &ts); 1168 1169 return (0); 1170 } 1171 1172 /* 1173 * sysctl helper routine for kern.maxproc. ensures that the new 1174 * values are not too low or too high. 1175 */ 1176 static int 1177 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1178 { 1179 int error, nmaxproc; 1180 struct sysctlnode node; 1181 1182 nmaxproc = maxproc; 1183 node = *rnode; 1184 node.sysctl_data = &nmaxproc; 1185 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1186 if (error || newp == NULL) 1187 return (error); 1188 1189 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1190 return (EINVAL); 1191 #ifdef __HAVE_CPU_MAXPROC 1192 if (nmaxproc > cpu_maxproc()) 1193 return (EINVAL); 1194 #endif 1195 maxproc = nmaxproc; 1196 1197 return (0); 1198 } 1199 1200 /* 1201 * sysctl helper function for kern.hostid. the hostid is a long, but 1202 * we export it as an int, so we need to give it a little help. 1203 */ 1204 static int 1205 sysctl_kern_hostid(SYSCTLFN_ARGS) 1206 { 1207 int error, inthostid; 1208 struct sysctlnode node; 1209 1210 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1211 node = *rnode; 1212 node.sysctl_data = &inthostid; 1213 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1214 if (error || newp == NULL) 1215 return (error); 1216 1217 hostid = (unsigned)inthostid; 1218 1219 return (0); 1220 } 1221 1222 /* 1223 * sysctl helper function for kern.hostname and kern.domainnname. 1224 * resets the relevant recorded length when the underlying name is 1225 * changed. 1226 */ 1227 static int 1228 sysctl_setlen(SYSCTLFN_ARGS) 1229 { 1230 int error; 1231 1232 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1233 if (error || newp == NULL) 1234 return (error); 1235 1236 switch (rnode->sysctl_num) { 1237 case KERN_HOSTNAME: 1238 hostnamelen = strlen((const char*)rnode->sysctl_data); 1239 break; 1240 case KERN_DOMAINNAME: 1241 domainnamelen = strlen((const char*)rnode->sysctl_data); 1242 break; 1243 } 1244 1245 return (0); 1246 } 1247 1248 /* 1249 * sysctl helper routine for kern.clockrate. assembles a struct on 1250 * the fly to be returned to the caller. 1251 */ 1252 static int 1253 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1254 { 1255 struct clockinfo clkinfo; 1256 struct sysctlnode node; 1257 1258 clkinfo.tick = tick; 1259 clkinfo.tickadj = tickadj; 1260 clkinfo.hz = hz; 1261 clkinfo.profhz = profhz; 1262 clkinfo.stathz = stathz ? stathz : hz; 1263 1264 node = *rnode; 1265 node.sysctl_data = &clkinfo; 1266 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1267 } 1268 1269 1270 /* 1271 * sysctl helper routine for kern.file pseudo-subtree. 1272 */ 1273 static int 1274 sysctl_kern_file(SYSCTLFN_ARGS) 1275 { 1276 int error; 1277 size_t buflen; 1278 struct file *fp; 1279 char *start, *where; 1280 1281 start = where = oldp; 1282 buflen = *oldlenp; 1283 if (where == NULL) { 1284 /* 1285 * overestimate by 10 files 1286 */ 1287 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1288 return (0); 1289 } 1290 1291 /* 1292 * first copyout filehead 1293 */ 1294 if (buflen < sizeof(filehead)) { 1295 *oldlenp = 0; 1296 return (0); 1297 } 1298 error = copyout(&filehead, where, sizeof(filehead)); 1299 if (error) 1300 return (error); 1301 buflen -= sizeof(filehead); 1302 where += sizeof(filehead); 1303 1304 /* 1305 * followed by an array of file structures 1306 */ 1307 LIST_FOREACH(fp, &filehead, f_list) { 1308 if (kauth_authorize_generic(l->l_cred, 1309 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1310 continue; 1311 if (buflen < sizeof(struct file)) { 1312 *oldlenp = where - start; 1313 return (ENOMEM); 1314 } 1315 error = copyout(fp, where, sizeof(struct file)); 1316 if (error) 1317 return (error); 1318 buflen -= sizeof(struct file); 1319 where += sizeof(struct file); 1320 } 1321 *oldlenp = where - start; 1322 return (0); 1323 } 1324 1325 /* 1326 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1327 * asserts that the assigned value is in the correct range. 1328 */ 1329 static int 1330 sysctl_kern_autonice(SYSCTLFN_ARGS) 1331 { 1332 int error, t = 0; 1333 struct sysctlnode node; 1334 1335 node = *rnode; 1336 t = *(int*)node.sysctl_data; 1337 node.sysctl_data = &t; 1338 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1339 if (error || newp == NULL) 1340 return (error); 1341 1342 switch (node.sysctl_num) { 1343 case KERN_AUTONICETIME: 1344 if (t >= 0) 1345 autonicetime = t; 1346 break; 1347 case KERN_AUTONICEVAL: 1348 if (t < PRIO_MIN) 1349 t = PRIO_MIN; 1350 else if (t > PRIO_MAX) 1351 t = PRIO_MAX; 1352 autoniceval = t; 1353 break; 1354 } 1355 1356 return (0); 1357 } 1358 1359 /* 1360 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1361 * former it merely checks the message buffer is set up. for the latter, 1362 * it also copies out the data if necessary. 1363 */ 1364 static int 1365 sysctl_msgbuf(SYSCTLFN_ARGS) 1366 { 1367 char *where = oldp; 1368 size_t len, maxlen; 1369 long beg, end; 1370 int error; 1371 1372 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1373 msgbufenabled = 0; 1374 return (ENXIO); 1375 } 1376 1377 switch (rnode->sysctl_num) { 1378 case KERN_MSGBUFSIZE: { 1379 struct sysctlnode node = *rnode; 1380 int msg_bufs = (int)msgbufp->msg_bufs; 1381 node.sysctl_data = &msg_bufs; 1382 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1383 } 1384 case KERN_MSGBUF: 1385 break; 1386 default: 1387 return (EOPNOTSUPP); 1388 } 1389 1390 if (newp != NULL) 1391 return (EPERM); 1392 1393 if (oldp == NULL) { 1394 /* always return full buffer size */ 1395 *oldlenp = msgbufp->msg_bufs; 1396 return (0); 1397 } 1398 1399 error = 0; 1400 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1401 1402 /* 1403 * First, copy from the write pointer to the end of 1404 * message buffer. 1405 */ 1406 beg = msgbufp->msg_bufx; 1407 end = msgbufp->msg_bufs; 1408 while (maxlen > 0) { 1409 len = MIN(end - beg, maxlen); 1410 if (len == 0) 1411 break; 1412 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1413 if (error) 1414 break; 1415 where += len; 1416 maxlen -= len; 1417 1418 /* 1419 * ... then, copy from the beginning of message buffer to 1420 * the write pointer. 1421 */ 1422 beg = 0; 1423 end = msgbufp->msg_bufx; 1424 } 1425 1426 return (error); 1427 } 1428 1429 /* 1430 * sysctl helper routine for kern.defcorename. in the case of a new 1431 * string being assigned, check that it's not a zero-length string. 1432 * (XXX the check in -current doesn't work, but do we really care?) 1433 */ 1434 static int 1435 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1436 { 1437 int error; 1438 char *newcorename; 1439 struct sysctlnode node; 1440 1441 newcorename = PNBUF_GET(); 1442 node = *rnode; 1443 node.sysctl_data = &newcorename[0]; 1444 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1445 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1446 if (error || newp == NULL) { 1447 goto done; 1448 } 1449 1450 /* 1451 * when sysctl_lookup() deals with a string, it's guaranteed 1452 * to come back nul terminated. so there. :) 1453 */ 1454 if (strlen(newcorename) == 0) { 1455 error = EINVAL; 1456 } else { 1457 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1458 error = 0; 1459 } 1460 done: 1461 PNBUF_PUT(newcorename); 1462 return error; 1463 } 1464 1465 /* 1466 * sysctl helper routine for kern.cp_time node. adds up cpu time 1467 * across all cpus. 1468 */ 1469 static int 1470 sysctl_kern_cptime(SYSCTLFN_ARGS) 1471 { 1472 struct sysctlnode node = *rnode; 1473 1474 #ifndef MULTIPROCESSOR 1475 1476 if (namelen == 1) { 1477 if (name[0] != 0) 1478 return (ENOENT); 1479 /* 1480 * you're allowed to ask for the zero'th processor 1481 */ 1482 name++; 1483 namelen--; 1484 } 1485 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1486 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1487 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1488 1489 #else /* MULTIPROCESSOR */ 1490 1491 uint64_t *cp_time = NULL; 1492 int error, n = sysctl_ncpus(), i; 1493 struct cpu_info *ci; 1494 CPU_INFO_ITERATOR cii; 1495 1496 /* 1497 * if you specifically pass a buffer that is the size of the 1498 * sum, or if you are probing for the size, you get the "sum" 1499 * of cp_time (and the size thereof) across all processors. 1500 * 1501 * alternately, you can pass an additional mib number and get 1502 * cp_time for that particular processor. 1503 */ 1504 switch (namelen) { 1505 case 0: 1506 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1507 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1508 n = -1; /* SUM */ 1509 } 1510 else { 1511 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1512 n = -2; /* ALL */ 1513 } 1514 break; 1515 case 1: 1516 if (name[0] < 0 || name[0] >= n) 1517 return (ENOENT); /* ENOSUCHPROCESSOR */ 1518 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1519 n = name[0]; 1520 /* 1521 * adjust these so that sysctl_lookup() will be happy 1522 */ 1523 name++; 1524 namelen--; 1525 break; 1526 default: 1527 return (EINVAL); 1528 } 1529 1530 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1531 if (cp_time == NULL) 1532 return (ENOMEM); 1533 node.sysctl_data = cp_time; 1534 memset(cp_time, 0, node.sysctl_size); 1535 1536 for (CPU_INFO_FOREACH(cii, ci)) { 1537 if (n <= 0) 1538 for (i = 0; i < CPUSTATES; i++) 1539 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1540 /* 1541 * if a specific processor was requested and we just 1542 * did it, we're done here 1543 */ 1544 if (n == 0) 1545 break; 1546 /* 1547 * if doing "all", skip to next cp_time set for next processor 1548 */ 1549 if (n == -2) 1550 cp_time += CPUSTATES; 1551 /* 1552 * if we're doing a specific processor, we're one 1553 * processor closer 1554 */ 1555 if (n > 0) 1556 n--; 1557 } 1558 1559 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1560 free(node.sysctl_data, M_TEMP); 1561 return (error); 1562 1563 #endif /* MULTIPROCESSOR */ 1564 } 1565 1566 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1567 /* 1568 * sysctl helper routine for kern.sysvipc_info subtree. 1569 */ 1570 1571 #define FILL_PERM(src, dst) do { \ 1572 (dst)._key = (src)._key; \ 1573 (dst).uid = (src).uid; \ 1574 (dst).gid = (src).gid; \ 1575 (dst).cuid = (src).cuid; \ 1576 (dst).cgid = (src).cgid; \ 1577 (dst).mode = (src).mode; \ 1578 (dst)._seq = (src)._seq; \ 1579 } while (/*CONSTCOND*/ 0); 1580 #define FILL_MSG(src, dst) do { \ 1581 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1582 (dst).msg_qnum = (src).msg_qnum; \ 1583 (dst).msg_qbytes = (src).msg_qbytes; \ 1584 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1585 (dst).msg_lspid = (src).msg_lspid; \ 1586 (dst).msg_lrpid = (src).msg_lrpid; \ 1587 (dst).msg_stime = (src).msg_stime; \ 1588 (dst).msg_rtime = (src).msg_rtime; \ 1589 (dst).msg_ctime = (src).msg_ctime; \ 1590 } while (/*CONSTCOND*/ 0) 1591 #define FILL_SEM(src, dst) do { \ 1592 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1593 (dst).sem_nsems = (src).sem_nsems; \ 1594 (dst).sem_otime = (src).sem_otime; \ 1595 (dst).sem_ctime = (src).sem_ctime; \ 1596 } while (/*CONSTCOND*/ 0) 1597 #define FILL_SHM(src, dst) do { \ 1598 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1599 (dst).shm_segsz = (src).shm_segsz; \ 1600 (dst).shm_lpid = (src).shm_lpid; \ 1601 (dst).shm_cpid = (src).shm_cpid; \ 1602 (dst).shm_atime = (src).shm_atime; \ 1603 (dst).shm_dtime = (src).shm_dtime; \ 1604 (dst).shm_ctime = (src).shm_ctime; \ 1605 (dst).shm_nattch = (src).shm_nattch; \ 1606 } while (/*CONSTCOND*/ 0) 1607 1608 static int 1609 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1610 { 1611 void *where = oldp; 1612 size_t *sizep = oldlenp; 1613 #ifdef SYSVMSG 1614 struct msg_sysctl_info *msgsi = NULL; 1615 #endif 1616 #ifdef SYSVSEM 1617 struct sem_sysctl_info *semsi = NULL; 1618 #endif 1619 #ifdef SYSVSHM 1620 struct shm_sysctl_info *shmsi = NULL; 1621 #endif 1622 size_t infosize, dssize, tsize, buflen; 1623 void *bf = NULL; 1624 char *start; 1625 int32_t nds; 1626 int i, error, ret; 1627 1628 if (namelen != 1) 1629 return (EINVAL); 1630 1631 start = where; 1632 buflen = *sizep; 1633 1634 switch (*name) { 1635 case KERN_SYSVIPC_MSG_INFO: 1636 #ifdef SYSVMSG 1637 infosize = sizeof(msgsi->msginfo); 1638 nds = msginfo.msgmni; 1639 dssize = sizeof(msgsi->msgids[0]); 1640 break; 1641 #else 1642 return (EINVAL); 1643 #endif 1644 case KERN_SYSVIPC_SEM_INFO: 1645 #ifdef SYSVSEM 1646 infosize = sizeof(semsi->seminfo); 1647 nds = seminfo.semmni; 1648 dssize = sizeof(semsi->semids[0]); 1649 break; 1650 #else 1651 return (EINVAL); 1652 #endif 1653 case KERN_SYSVIPC_SHM_INFO: 1654 #ifdef SYSVSHM 1655 infosize = sizeof(shmsi->shminfo); 1656 nds = shminfo.shmmni; 1657 dssize = sizeof(shmsi->shmids[0]); 1658 break; 1659 #else 1660 return (EINVAL); 1661 #endif 1662 default: 1663 return (EINVAL); 1664 } 1665 /* 1666 * Round infosize to 64 bit boundary if requesting more than just 1667 * the info structure or getting the total data size. 1668 */ 1669 if (where == NULL || *sizep > infosize) 1670 infosize = ((infosize + 7) / 8) * 8; 1671 tsize = infosize + nds * dssize; 1672 1673 /* Return just the total size required. */ 1674 if (where == NULL) { 1675 *sizep = tsize; 1676 return (0); 1677 } 1678 1679 /* Not enough room for even the info struct. */ 1680 if (buflen < infosize) { 1681 *sizep = 0; 1682 return (ENOMEM); 1683 } 1684 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1685 memset(bf, 0, min(tsize, buflen)); 1686 1687 switch (*name) { 1688 #ifdef SYSVMSG 1689 case KERN_SYSVIPC_MSG_INFO: 1690 msgsi = (struct msg_sysctl_info *)bf; 1691 msgsi->msginfo = msginfo; 1692 break; 1693 #endif 1694 #ifdef SYSVSEM 1695 case KERN_SYSVIPC_SEM_INFO: 1696 semsi = (struct sem_sysctl_info *)bf; 1697 semsi->seminfo = seminfo; 1698 break; 1699 #endif 1700 #ifdef SYSVSHM 1701 case KERN_SYSVIPC_SHM_INFO: 1702 shmsi = (struct shm_sysctl_info *)bf; 1703 shmsi->shminfo = shminfo; 1704 break; 1705 #endif 1706 } 1707 buflen -= infosize; 1708 1709 ret = 0; 1710 if (buflen > 0) { 1711 /* Fill in the IPC data structures. */ 1712 for (i = 0; i < nds; i++) { 1713 if (buflen < dssize) { 1714 ret = ENOMEM; 1715 break; 1716 } 1717 switch (*name) { 1718 #ifdef SYSVMSG 1719 case KERN_SYSVIPC_MSG_INFO: 1720 FILL_MSG(msqids[i], msgsi->msgids[i]); 1721 break; 1722 #endif 1723 #ifdef SYSVSEM 1724 case KERN_SYSVIPC_SEM_INFO: 1725 FILL_SEM(sema[i], semsi->semids[i]); 1726 break; 1727 #endif 1728 #ifdef SYSVSHM 1729 case KERN_SYSVIPC_SHM_INFO: 1730 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1731 break; 1732 #endif 1733 } 1734 buflen -= dssize; 1735 } 1736 } 1737 *sizep -= buflen; 1738 error = copyout(bf, start, *sizep); 1739 /* If copyout succeeded, use return code set earlier. */ 1740 if (error == 0) 1741 error = ret; 1742 if (bf) 1743 free(bf, M_TEMP); 1744 return (error); 1745 } 1746 1747 #undef FILL_PERM 1748 #undef FILL_MSG 1749 #undef FILL_SEM 1750 #undef FILL_SHM 1751 1752 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1753 1754 #if NPTY > 0 1755 /* 1756 * sysctl helper routine for kern.maxptys. ensures that any new value 1757 * is acceptable to the pty subsystem. 1758 */ 1759 static int 1760 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1761 { 1762 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1763 int error, xmax; 1764 struct sysctlnode node; 1765 1766 /* get current value of maxptys */ 1767 xmax = pty_maxptys(0, 0); 1768 1769 node = *rnode; 1770 node.sysctl_data = &xmax; 1771 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1772 if (error || newp == NULL) 1773 return (error); 1774 1775 if (xmax != pty_maxptys(xmax, 1)) 1776 return (EINVAL); 1777 1778 return (0); 1779 } 1780 #endif /* NPTY > 0 */ 1781 1782 /* 1783 * sysctl helper routine for kern.sbmax. basically just ensures that 1784 * any new value is not too small. 1785 */ 1786 static int 1787 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1788 { 1789 int error, new_sbmax; 1790 struct sysctlnode node; 1791 1792 new_sbmax = sb_max; 1793 node = *rnode; 1794 node.sysctl_data = &new_sbmax; 1795 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1796 if (error || newp == NULL) 1797 return (error); 1798 1799 error = sb_max_set(new_sbmax); 1800 1801 return (error); 1802 } 1803 1804 /* 1805 * sysctl helper routine for kern.urandom node. picks a random number 1806 * for you. 1807 */ 1808 static int 1809 sysctl_kern_urnd(SYSCTLFN_ARGS) 1810 { 1811 #if NRND > 0 1812 int v; 1813 1814 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1815 struct sysctlnode node = *rnode; 1816 node.sysctl_data = &v; 1817 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1818 } 1819 else 1820 return (EIO); /*XXX*/ 1821 #else 1822 return (EOPNOTSUPP); 1823 #endif 1824 } 1825 1826 /* 1827 * sysctl helper routine to do kern.lwp.* work. 1828 */ 1829 static int 1830 sysctl_kern_lwp(SYSCTLFN_ARGS) 1831 { 1832 struct kinfo_lwp klwp; 1833 struct proc *p; 1834 struct lwp *l2; 1835 char *where, *dp; 1836 int pid, elem_size, elem_count; 1837 int buflen, needed, error; 1838 1839 if (namelen == 1 && name[0] == CTL_QUERY) 1840 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1841 1842 dp = where = oldp; 1843 buflen = where != NULL ? *oldlenp : 0; 1844 error = needed = 0; 1845 1846 if (newp != NULL || namelen != 3) 1847 return (EINVAL); 1848 pid = name[0]; 1849 elem_size = name[1]; 1850 elem_count = name[2]; 1851 1852 p = pfind(pid); 1853 if (p == NULL) 1854 return (ESRCH); 1855 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1856 if (buflen >= elem_size && elem_count > 0) { 1857 fill_lwp(l2, &klwp); 1858 /* 1859 * Copy out elem_size, but not larger than 1860 * the size of a struct kinfo_proc2. 1861 */ 1862 error = copyout(&klwp, dp, 1863 min(sizeof(klwp), elem_size)); 1864 if (error) 1865 goto cleanup; 1866 dp += elem_size; 1867 buflen -= elem_size; 1868 elem_count--; 1869 } 1870 needed += elem_size; 1871 } 1872 1873 if (where != NULL) { 1874 *oldlenp = dp - where; 1875 if (needed > *oldlenp) 1876 return (ENOMEM); 1877 } else { 1878 needed += KERN_LWPSLOP; 1879 *oldlenp = needed; 1880 } 1881 return (0); 1882 cleanup: 1883 return (error); 1884 } 1885 1886 /* 1887 * sysctl helper routine for kern.forkfsleep node. ensures that the 1888 * given value is not too large or two small, and is at least one 1889 * timer tick if not zero. 1890 */ 1891 static int 1892 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1893 { 1894 /* userland sees value in ms, internally is in ticks */ 1895 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1896 int error, timo, lsleep; 1897 struct sysctlnode node; 1898 1899 lsleep = forkfsleep * 1000 / hz; 1900 node = *rnode; 1901 node.sysctl_data = &lsleep; 1902 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1903 if (error || newp == NULL) 1904 return (error); 1905 1906 /* refuse negative values, and overly 'long time' */ 1907 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1908 return (EINVAL); 1909 1910 timo = mstohz(lsleep); 1911 1912 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1913 if (lsleep != 0 && timo == 0) 1914 forkfsleep = 1; 1915 else 1916 forkfsleep = timo; 1917 1918 return (0); 1919 } 1920 1921 /* 1922 * sysctl helper routine for kern.root_partition 1923 */ 1924 static int 1925 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1926 { 1927 int rootpart = DISKPART(rootdev); 1928 struct sysctlnode node = *rnode; 1929 1930 node.sysctl_data = &rootpart; 1931 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1932 } 1933 1934 /* 1935 * sysctl helper function for kern.drivers 1936 */ 1937 static int 1938 sysctl_kern_drivers(SYSCTLFN_ARGS) 1939 { 1940 int error; 1941 size_t buflen; 1942 struct kinfo_drivers kd; 1943 char *start, *where; 1944 const char *dname; 1945 int i; 1946 extern struct devsw_conv *devsw_conv; 1947 extern int max_devsw_convs; 1948 1949 if (newp != NULL || namelen != 0) 1950 return (EINVAL); 1951 1952 start = where = oldp; 1953 buflen = *oldlenp; 1954 if (where == NULL) { 1955 *oldlenp = max_devsw_convs * sizeof kd; 1956 return 0; 1957 } 1958 1959 /* 1960 * An array of kinfo_drivers structures 1961 */ 1962 error = 0; 1963 for (i = 0; i < max_devsw_convs; i++) { 1964 dname = devsw_conv[i].d_name; 1965 if (dname == NULL) 1966 continue; 1967 if (buflen < sizeof kd) { 1968 error = ENOMEM; 1969 break; 1970 } 1971 memset(&kd, 0, sizeof(kd)); 1972 kd.d_bmajor = devsw_conv[i].d_bmajor; 1973 kd.d_cmajor = devsw_conv[i].d_cmajor; 1974 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1975 error = copyout(&kd, where, sizeof kd); 1976 if (error != 0) 1977 break; 1978 buflen -= sizeof kd; 1979 where += sizeof kd; 1980 } 1981 *oldlenp = where - start; 1982 return error; 1983 } 1984 1985 /* 1986 * sysctl helper function for kern.file2 1987 */ 1988 static int 1989 sysctl_kern_file2(SYSCTLFN_ARGS) 1990 { 1991 struct proc *p; 1992 struct file *fp; 1993 struct filedesc *fd; 1994 struct kinfo_file kf; 1995 char *dp; 1996 u_int i, op; 1997 size_t len, needed, elem_size, out_size; 1998 int error, arg, elem_count; 1999 2000 if (namelen == 1 && name[0] == CTL_QUERY) 2001 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2002 2003 if (namelen != 4) 2004 return (EINVAL); 2005 2006 error = 0; 2007 dp = oldp; 2008 len = (oldp != NULL) ? *oldlenp : 0; 2009 op = name[0]; 2010 arg = name[1]; 2011 elem_size = name[2]; 2012 elem_count = name[3]; 2013 out_size = MIN(sizeof(kf), elem_size); 2014 needed = 0; 2015 2016 if (elem_size < 1 || elem_count < 0) 2017 return (EINVAL); 2018 2019 switch (op) { 2020 case KERN_FILE_BYFILE: 2021 /* 2022 * doesn't use arg so it must be zero 2023 */ 2024 if (arg != 0) 2025 return (EINVAL); 2026 LIST_FOREACH(fp, &filehead, f_list) { 2027 if (kauth_authorize_generic(l->l_cred, 2028 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 2029 continue; 2030 if (len >= elem_size && elem_count > 0) { 2031 fill_file(&kf, fp, NULL, 0); 2032 error = copyout(&kf, dp, out_size); 2033 if (error) 2034 break; 2035 dp += elem_size; 2036 len -= elem_size; 2037 } 2038 if (elem_count > 0) { 2039 needed += elem_size; 2040 if (elem_count != INT_MAX) 2041 elem_count--; 2042 } 2043 } 2044 break; 2045 case KERN_FILE_BYPID: 2046 if (arg < -1) 2047 /* -1 means all processes */ 2048 return (EINVAL); 2049 proclist_lock_read(); 2050 PROCLIST_FOREACH(p, &allproc) { 2051 if (p->p_stat == SIDL) 2052 /* skip embryonic processes */ 2053 continue; 2054 if (kauth_authorize_process(l->l_cred, 2055 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2056 continue; 2057 if (arg > 0 && p->p_pid != arg) 2058 /* pick only the one we want */ 2059 /* XXX want 0 to mean "kernel files" */ 2060 continue; 2061 fd = p->p_fd; 2062 for (i = 0; i < fd->fd_nfiles; i++) { 2063 fp = fd->fd_ofiles[i]; 2064 if (fp == NULL || !FILE_IS_USABLE(fp)) 2065 continue; 2066 if (len >= elem_size && elem_count > 0) { 2067 fill_file(&kf, fd->fd_ofiles[i], 2068 p, i); 2069 error = copyout(&kf, dp, out_size); 2070 if (error) 2071 break; 2072 dp += elem_size; 2073 len -= elem_size; 2074 } 2075 if (elem_count > 0) { 2076 needed += elem_size; 2077 if (elem_count != INT_MAX) 2078 elem_count--; 2079 } 2080 } 2081 } 2082 proclist_unlock_read(); 2083 break; 2084 default: 2085 return (EINVAL); 2086 } 2087 2088 if (oldp == NULL) 2089 needed += KERN_FILESLOP * elem_size; 2090 *oldlenp = needed; 2091 2092 return (error); 2093 } 2094 2095 static void 2096 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2097 { 2098 2099 memset(kp, 0, sizeof(*kp)); 2100 2101 kp->ki_fileaddr = PTRTOUINT64(fp); 2102 kp->ki_flag = fp->f_flag; 2103 kp->ki_iflags = fp->f_iflags; 2104 kp->ki_ftype = fp->f_type; 2105 kp->ki_count = fp->f_count; 2106 kp->ki_msgcount = fp->f_msgcount; 2107 kp->ki_usecount = fp->f_usecount; 2108 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2109 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2110 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2111 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2112 kp->ki_foffset = fp->f_offset; 2113 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2114 2115 /* vnode information to glue this file to something */ 2116 if (fp->f_type == DTYPE_VNODE) { 2117 struct vnode *vp = (struct vnode *)fp->f_data; 2118 2119 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2120 kp->ki_vsize = vp->v_size; 2121 kp->ki_vtype = vp->v_type; 2122 kp->ki_vtag = vp->v_tag; 2123 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2124 } 2125 2126 /* process information when retrieved via KERN_FILE_BYPID */ 2127 if (p) { 2128 kp->ki_pid = p->p_pid; 2129 kp->ki_fd = i; 2130 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2131 } 2132 } 2133 2134 static int 2135 sysctl_doeproc(SYSCTLFN_ARGS) 2136 { 2137 struct eproc *eproc; 2138 struct kinfo_proc2 *kproc2; 2139 struct kinfo_proc *dp; 2140 struct proc *p; 2141 const struct proclist_desc *pd; 2142 char *where, *dp2; 2143 int type, op, arg; 2144 u_int elem_size, elem_count; 2145 size_t buflen, needed; 2146 int error; 2147 2148 if (namelen == 1 && name[0] == CTL_QUERY) 2149 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2150 2151 dp = oldp; 2152 dp2 = where = oldp; 2153 buflen = where != NULL ? *oldlenp : 0; 2154 error = 0; 2155 needed = 0; 2156 type = rnode->sysctl_num; 2157 2158 if (type == KERN_PROC) { 2159 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2160 return (EINVAL); 2161 op = name[0]; 2162 if (op != KERN_PROC_ALL) 2163 arg = name[1]; 2164 else 2165 arg = 0; /* Quell compiler warning */ 2166 elem_size = elem_count = 0; /* Ditto */ 2167 } else { 2168 if (namelen != 4) 2169 return (EINVAL); 2170 op = name[0]; 2171 arg = name[1]; 2172 elem_size = name[2]; 2173 elem_count = name[3]; 2174 } 2175 2176 if (type == KERN_PROC) { 2177 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2178 kproc2 = NULL; 2179 } else { 2180 eproc = NULL; 2181 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2182 } 2183 proclist_lock_read(); 2184 2185 pd = proclists; 2186 again: 2187 PROCLIST_FOREACH(p, pd->pd_list) { 2188 /* 2189 * Skip embryonic processes. 2190 */ 2191 if (p->p_stat == SIDL) 2192 continue; 2193 2194 if (kauth_authorize_process(l->l_cred, 2195 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2196 continue; 2197 2198 /* 2199 * TODO - make more efficient (see notes below). 2200 * do by session. 2201 */ 2202 switch (op) { 2203 2204 case KERN_PROC_PID: 2205 /* could do this with just a lookup */ 2206 if (p->p_pid != (pid_t)arg) 2207 continue; 2208 break; 2209 2210 case KERN_PROC_PGRP: 2211 /* could do this by traversing pgrp */ 2212 if (p->p_pgrp->pg_id != (pid_t)arg) 2213 continue; 2214 break; 2215 2216 case KERN_PROC_SESSION: 2217 if (p->p_session->s_sid != (pid_t)arg) 2218 continue; 2219 break; 2220 2221 case KERN_PROC_TTY: 2222 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2223 if ((p->p_flag & P_CONTROLT) == 0 || 2224 p->p_session->s_ttyp == NULL || 2225 p->p_session->s_ttyvp != NULL) 2226 continue; 2227 } else if ((p->p_flag & P_CONTROLT) == 0 || 2228 p->p_session->s_ttyp == NULL) { 2229 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2230 continue; 2231 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2232 continue; 2233 break; 2234 2235 case KERN_PROC_UID: 2236 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2237 continue; 2238 break; 2239 2240 case KERN_PROC_RUID: 2241 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2242 continue; 2243 break; 2244 2245 case KERN_PROC_GID: 2246 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2247 continue; 2248 break; 2249 2250 case KERN_PROC_RGID: 2251 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2252 continue; 2253 break; 2254 2255 case KERN_PROC_ALL: 2256 /* allow everything */ 2257 break; 2258 2259 default: 2260 error = EINVAL; 2261 goto cleanup; 2262 } 2263 if (type == KERN_PROC) { 2264 if (buflen >= sizeof(struct kinfo_proc)) { 2265 fill_eproc(p, eproc); 2266 error = copyout(p, &dp->kp_proc, 2267 sizeof(struct proc)); 2268 if (error) 2269 goto cleanup; 2270 error = copyout(eproc, &dp->kp_eproc, 2271 sizeof(*eproc)); 2272 if (error) 2273 goto cleanup; 2274 dp++; 2275 buflen -= sizeof(struct kinfo_proc); 2276 } 2277 needed += sizeof(struct kinfo_proc); 2278 } else { /* KERN_PROC2 */ 2279 if (buflen >= elem_size && elem_count > 0) { 2280 fill_kproc2(p, kproc2); 2281 /* 2282 * Copy out elem_size, but not larger than 2283 * the size of a struct kinfo_proc2. 2284 */ 2285 error = copyout(kproc2, dp2, 2286 min(sizeof(*kproc2), elem_size)); 2287 if (error) 2288 goto cleanup; 2289 dp2 += elem_size; 2290 buflen -= elem_size; 2291 elem_count--; 2292 } 2293 needed += elem_size; 2294 } 2295 } 2296 pd++; 2297 if (pd->pd_list != NULL) 2298 goto again; 2299 proclist_unlock_read(); 2300 2301 if (where != NULL) { 2302 if (type == KERN_PROC) 2303 *oldlenp = (char *)dp - where; 2304 else 2305 *oldlenp = dp2 - where; 2306 if (needed > *oldlenp) { 2307 error = ENOMEM; 2308 goto out; 2309 } 2310 } else { 2311 needed += KERN_PROCSLOP; 2312 *oldlenp = needed; 2313 } 2314 if (kproc2) 2315 free(kproc2, M_TEMP); 2316 if (eproc) 2317 free(eproc, M_TEMP); 2318 return 0; 2319 cleanup: 2320 proclist_unlock_read(); 2321 out: 2322 if (kproc2) 2323 free(kproc2, M_TEMP); 2324 if (eproc) 2325 free(eproc, M_TEMP); 2326 return error; 2327 } 2328 2329 /* 2330 * sysctl helper routine for kern.proc_args pseudo-subtree. 2331 */ 2332 static int 2333 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2334 { 2335 struct ps_strings pss; 2336 struct proc *p; 2337 size_t len, i; 2338 struct uio auio; 2339 struct iovec aiov; 2340 pid_t pid; 2341 int nargv, type, error; 2342 char *arg; 2343 char **argv = NULL; 2344 char *tmp; 2345 struct vmspace *vmspace; 2346 vaddr_t psstr_addr; 2347 vaddr_t offsetn; 2348 vaddr_t offsetv; 2349 2350 if (namelen == 1 && name[0] == CTL_QUERY) 2351 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2352 2353 if (newp != NULL || namelen != 2) 2354 return (EINVAL); 2355 pid = name[0]; 2356 type = name[1]; 2357 2358 switch (type) { 2359 case KERN_PROC_ARGV: 2360 case KERN_PROC_NARGV: 2361 case KERN_PROC_ENV: 2362 case KERN_PROC_NENV: 2363 /* ok */ 2364 break; 2365 default: 2366 return (EINVAL); 2367 } 2368 2369 proclist_lock_read(); 2370 2371 /* check pid */ 2372 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2373 error = EINVAL; 2374 goto out_locked; 2375 } 2376 2377 error = kauth_authorize_process(l->l_cred, 2378 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2379 if (error) { 2380 goto out_locked; 2381 } 2382 2383 /* only root or same user change look at the environment */ 2384 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2385 if (kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2386 p, NULL, NULL, NULL)) { 2387 error = EPERM; 2388 goto out_locked; 2389 } 2390 } 2391 2392 if (oldp == NULL) { 2393 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2394 *oldlenp = sizeof (int); 2395 else 2396 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2397 error = 0; 2398 goto out_locked; 2399 } 2400 2401 /* 2402 * Zombies don't have a stack, so we can't read their psstrings. 2403 * System processes also don't have a user stack. 2404 */ 2405 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2406 error = EINVAL; 2407 goto out_locked; 2408 } 2409 2410 /* 2411 * Lock the process down in memory. 2412 */ 2413 /* XXXCDC: how should locking work here? */ 2414 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2415 error = EFAULT; 2416 goto out_locked; 2417 } 2418 2419 psstr_addr = (vaddr_t)p->p_psstr; 2420 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2421 offsetn = p->p_psnargv; 2422 offsetv = p->p_psargv; 2423 } else { 2424 offsetn = p->p_psnenv; 2425 offsetv = p->p_psenv; 2426 } 2427 vmspace = p->p_vmspace; 2428 vmspace->vm_refcnt++; /* XXX */ 2429 2430 proclist_unlock_read(); 2431 2432 /* 2433 * Allocate a temporary buffer to hold the arguments. 2434 */ 2435 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2436 2437 /* 2438 * Read in the ps_strings structure. 2439 */ 2440 aiov.iov_base = &pss; 2441 aiov.iov_len = sizeof(pss); 2442 auio.uio_iov = &aiov; 2443 auio.uio_iovcnt = 1; 2444 auio.uio_offset = psstr_addr; 2445 auio.uio_resid = sizeof(pss); 2446 auio.uio_rw = UIO_READ; 2447 UIO_SETUP_SYSSPACE(&auio); 2448 error = uvm_io(&vmspace->vm_map, &auio); 2449 if (error) 2450 goto done; 2451 2452 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2453 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2454 error = copyout(&nargv, oldp, sizeof(nargv)); 2455 *oldlenp = sizeof(nargv); 2456 goto done; 2457 } 2458 /* 2459 * Now read the address of the argument vector. 2460 */ 2461 switch (type) { 2462 case KERN_PROC_ARGV: 2463 /* FALLTHROUGH */ 2464 case KERN_PROC_ENV: 2465 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2466 break; 2467 default: 2468 return (EINVAL); 2469 } 2470 2471 #ifdef COMPAT_NETBSD32 2472 if (p->p_flag & P_32) 2473 len = sizeof(netbsd32_charp) * nargv; 2474 else 2475 #endif 2476 len = sizeof(char *) * nargv; 2477 2478 argv = malloc(len, M_TEMP, M_WAITOK); 2479 2480 aiov.iov_base = argv; 2481 aiov.iov_len = len; 2482 auio.uio_iov = &aiov; 2483 auio.uio_iovcnt = 1; 2484 auio.uio_offset = (off_t)(unsigned long)tmp; 2485 auio.uio_resid = len; 2486 auio.uio_rw = UIO_READ; 2487 UIO_SETUP_SYSSPACE(&auio); 2488 error = uvm_io(&vmspace->vm_map, &auio); 2489 if (error) 2490 goto done; 2491 2492 /* 2493 * Now copy each string. 2494 */ 2495 len = 0; /* bytes written to user buffer */ 2496 for (i = 0; i < nargv; i++) { 2497 int finished = 0; 2498 vaddr_t base; 2499 size_t xlen; 2500 int j; 2501 2502 #ifdef COMPAT_NETBSD32 2503 if (p->p_flag & P_32) { 2504 netbsd32_charp *argv32; 2505 2506 argv32 = (netbsd32_charp *)argv; 2507 2508 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2509 } else 2510 #endif 2511 base = (vaddr_t)argv[i]; 2512 2513 while (!finished) { 2514 xlen = PAGE_SIZE - (base & PAGE_MASK); 2515 2516 aiov.iov_base = arg; 2517 aiov.iov_len = PAGE_SIZE; 2518 auio.uio_iov = &aiov; 2519 auio.uio_iovcnt = 1; 2520 auio.uio_offset = base; 2521 auio.uio_resid = xlen; 2522 auio.uio_rw = UIO_READ; 2523 UIO_SETUP_SYSSPACE(&auio); 2524 error = uvm_io(&vmspace->vm_map, &auio); 2525 if (error) 2526 goto done; 2527 2528 /* Look for the end of the string */ 2529 for (j = 0; j < xlen; j++) { 2530 if (arg[j] == '\0') { 2531 xlen = j + 1; 2532 finished = 1; 2533 break; 2534 } 2535 } 2536 2537 /* Check for user buffer overflow */ 2538 if (len + xlen > *oldlenp) { 2539 finished = 1; 2540 if (len > *oldlenp) 2541 xlen = 0; 2542 else 2543 xlen = *oldlenp - len; 2544 } 2545 2546 /* Copyout the page */ 2547 error = copyout(arg, (char *)oldp + len, xlen); 2548 if (error) 2549 goto done; 2550 2551 len += xlen; 2552 base += xlen; 2553 } 2554 } 2555 *oldlenp = len; 2556 2557 done: 2558 if (argv != NULL) 2559 free(argv, M_TEMP); 2560 2561 uvmspace_free(vmspace); 2562 2563 free(arg, M_TEMP); 2564 return error; 2565 2566 out_locked: 2567 proclist_unlock_read(); 2568 return error; 2569 } 2570 2571 /* 2572 * Sysctl helper routine for Verified Exec. 2573 */ 2574 #if NVERIEXEC > 0 2575 static int 2576 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2577 { 2578 int newval, error; 2579 int *var = NULL, raise_only = 0; 2580 struct sysctlnode node; 2581 2582 node = *rnode; 2583 2584 switch (rnode->sysctl_num) { 2585 case VERIEXEC_STRICT: 2586 raise_only = 1; 2587 var = &veriexec_strict; 2588 break; 2589 case VERIEXEC_ALGORITHMS: 2590 node.sysctl_data = veriexec_fp_names; 2591 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2592 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2593 default: 2594 return (EINVAL); 2595 } 2596 2597 newval = *var; 2598 2599 node.sysctl_data = &newval; 2600 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2601 if (error || newp == NULL) { 2602 return (error); 2603 } 2604 2605 if (raise_only && (newval < *var)) 2606 return (EPERM); 2607 2608 *var = newval; 2609 2610 return (error); 2611 } 2612 #endif /* NVERIEXEC > 0 */ 2613 2614 static int 2615 sysctl_security_setidcore(SYSCTLFN_ARGS) 2616 { 2617 int newsize, error; 2618 struct sysctlnode node; 2619 2620 node = *rnode; 2621 node.sysctl_data = &newsize; 2622 newsize = *(int *)rnode->sysctl_data; 2623 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2624 if (error || newp == NULL) 2625 return error; 2626 2627 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2628 0, NULL, NULL, NULL)) 2629 return (EPERM); 2630 2631 *(int *)rnode->sysctl_data = newsize; 2632 2633 return 0; 2634 } 2635 2636 static int 2637 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2638 { 2639 int error; 2640 char *newsetidcorename; 2641 struct sysctlnode node; 2642 2643 newsetidcorename = PNBUF_GET(); 2644 node = *rnode; 2645 node.sysctl_data = newsetidcorename; 2646 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2647 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2648 if (error || newp == NULL) { 2649 goto out; 2650 } 2651 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2652 0, NULL, NULL, NULL)) { 2653 error = EPERM; 2654 goto out; 2655 } 2656 if (strlen(newsetidcorename) == 0) { 2657 error = EINVAL; 2658 goto out; 2659 } 2660 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2661 out: 2662 PNBUF_PUT(newsetidcorename); 2663 return error; 2664 } 2665 2666 /* 2667 * sysctl helper routine for kern.cp_id node. maps cpus to their 2668 * cpuids. 2669 */ 2670 static int 2671 sysctl_kern_cpid(SYSCTLFN_ARGS) 2672 { 2673 struct sysctlnode node = *rnode; 2674 2675 #ifndef MULTIPROCESSOR 2676 uint64_t id; 2677 2678 if (namelen == 1) { 2679 if (name[0] != 0) 2680 return (ENOENT); 2681 /* 2682 * you're allowed to ask for the zero'th processor 2683 */ 2684 name++; 2685 namelen--; 2686 } 2687 node.sysctl_data = &id; 2688 node.sysctl_size = sizeof(id); 2689 id = cpu_number(); 2690 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2691 2692 #else /* MULTIPROCESSOR */ 2693 uint64_t *cp_id = NULL; 2694 int error, n = sysctl_ncpus(); 2695 struct cpu_info *ci; 2696 CPU_INFO_ITERATOR cii; 2697 2698 /* 2699 * here you may either retrieve a single cpu id or the whole 2700 * set. the size you get back when probing depends on what 2701 * you ask for. 2702 */ 2703 switch (namelen) { 2704 case 0: 2705 node.sysctl_size = n * sizeof(uint64_t); 2706 n = -2; /* ALL */ 2707 break; 2708 case 1: 2709 if (name[0] < 0 || name[0] >= n) 2710 return (ENOENT); /* ENOSUCHPROCESSOR */ 2711 node.sysctl_size = sizeof(uint64_t); 2712 n = name[0]; 2713 /* 2714 * adjust these so that sysctl_lookup() will be happy 2715 */ 2716 name++; 2717 namelen--; 2718 break; 2719 default: 2720 return (EINVAL); 2721 } 2722 2723 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2724 if (cp_id == NULL) 2725 return (ENOMEM); 2726 node.sysctl_data = cp_id; 2727 memset(cp_id, 0, node.sysctl_size); 2728 2729 for (CPU_INFO_FOREACH(cii, ci)) { 2730 if (n <= 0) 2731 cp_id[0] = ci->ci_cpuid; 2732 /* 2733 * if a specific processor was requested and we just 2734 * did it, we're done here 2735 */ 2736 if (n == 0) 2737 break; 2738 /* 2739 * if doing "all", skip to next cp_id slot for next processor 2740 */ 2741 if (n == -2) 2742 cp_id++; 2743 /* 2744 * if we're doing a specific processor, we're one 2745 * processor closer 2746 */ 2747 if (n > 0) 2748 n--; 2749 } 2750 2751 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2752 free(node.sysctl_data, M_TEMP); 2753 return (error); 2754 2755 #endif /* MULTIPROCESSOR */ 2756 } 2757 2758 /* 2759 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2760 * calculate on the fly taking into account integer overflow and the 2761 * current wired count. 2762 */ 2763 static int 2764 sysctl_hw_usermem(SYSCTLFN_ARGS) 2765 { 2766 u_int ui; 2767 u_quad_t uq; 2768 struct sysctlnode node; 2769 2770 node = *rnode; 2771 switch (rnode->sysctl_num) { 2772 case HW_USERMEM: 2773 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2774 ui = UINT_MAX; 2775 else 2776 ui *= PAGE_SIZE; 2777 node.sysctl_data = &ui; 2778 break; 2779 case HW_USERMEM64: 2780 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2781 node.sysctl_data = &uq; 2782 break; 2783 default: 2784 return (EINVAL); 2785 } 2786 2787 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2788 } 2789 2790 /* 2791 * sysctl helper routine for kern.cnmagic node. pulls the old value 2792 * out, encoded, and stuffs the new value in for decoding. 2793 */ 2794 static int 2795 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2796 { 2797 char magic[CNS_LEN]; 2798 int error; 2799 struct sysctlnode node; 2800 2801 if (oldp) 2802 cn_get_magic(magic, CNS_LEN); 2803 node = *rnode; 2804 node.sysctl_data = &magic[0]; 2805 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2806 if (error || newp == NULL) 2807 return (error); 2808 2809 return (cn_set_magic(magic)); 2810 } 2811 2812 static int 2813 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2814 { 2815 int ncpu; 2816 struct sysctlnode node; 2817 2818 ncpu = sysctl_ncpus(); 2819 node = *rnode; 2820 node.sysctl_data = &ncpu; 2821 2822 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2823 } 2824 2825 2826 /* 2827 * ******************************************************************** 2828 * section 3: public helper routines that are used for more than one 2829 * node 2830 * ******************************************************************** 2831 */ 2832 2833 /* 2834 * sysctl helper routine for the kern.root_device node and some ports' 2835 * machdep.root_device nodes. 2836 */ 2837 int 2838 sysctl_root_device(SYSCTLFN_ARGS) 2839 { 2840 struct sysctlnode node; 2841 2842 node = *rnode; 2843 node.sysctl_data = root_device->dv_xname; 2844 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2845 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2846 } 2847 2848 /* 2849 * sysctl helper routine for kern.consdev, dependent on the current 2850 * state of the console. also used for machdep.console_device on some 2851 * ports. 2852 */ 2853 int 2854 sysctl_consdev(SYSCTLFN_ARGS) 2855 { 2856 dev_t consdev; 2857 struct sysctlnode node; 2858 2859 if (cn_tab != NULL) 2860 consdev = cn_tab->cn_dev; 2861 else 2862 consdev = NODEV; 2863 node = *rnode; 2864 node.sysctl_data = &consdev; 2865 node.sysctl_size = sizeof(consdev); 2866 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2867 } 2868 2869 /* 2870 * ******************************************************************** 2871 * section 4: support for some helpers 2872 * ******************************************************************** 2873 */ 2874 2875 /* 2876 * Fill in a kinfo_proc2 structure for the specified process. 2877 */ 2878 static void 2879 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2880 { 2881 struct tty *tp; 2882 struct lwp *l; 2883 struct timeval ut, st; 2884 2885 memset(ki, 0, sizeof(*ki)); 2886 2887 ki->p_paddr = PTRTOUINT64(p); 2888 ki->p_fd = PTRTOUINT64(p->p_fd); 2889 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2890 ki->p_stats = PTRTOUINT64(p->p_stats); 2891 ki->p_limit = PTRTOUINT64(p->p_limit); 2892 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2893 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2894 ki->p_sess = PTRTOUINT64(p->p_session); 2895 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2896 ki->p_ru = PTRTOUINT64(p->p_ru); 2897 2898 ki->p_eflag = 0; 2899 ki->p_exitsig = p->p_exitsig; 2900 ki->p_flag = p->p_flag; 2901 2902 ki->p_pid = p->p_pid; 2903 if (p->p_pptr) 2904 ki->p_ppid = p->p_pptr->p_pid; 2905 else 2906 ki->p_ppid = 0; 2907 ki->p_sid = p->p_session->s_sid; 2908 ki->p__pgid = p->p_pgrp->pg_id; 2909 2910 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2911 2912 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2913 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2914 ki->p_gid = kauth_cred_getegid(p->p_cred); 2915 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2916 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2917 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2918 2919 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2920 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2921 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2922 2923 ki->p_jobc = p->p_pgrp->pg_jobc; 2924 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2925 ki->p_tdev = tp->t_dev; 2926 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2927 ki->p_tsess = PTRTOUINT64(tp->t_session); 2928 } else { 2929 ki->p_tdev = NODEV; 2930 } 2931 2932 ki->p_estcpu = p->p_estcpu; 2933 ki->p_rtime_sec = p->p_rtime.tv_sec; 2934 ki->p_rtime_usec = p->p_rtime.tv_usec; 2935 ki->p_cpticks = p->p_cpticks; 2936 ki->p_pctcpu = p->p_pctcpu; 2937 2938 ki->p_uticks = p->p_uticks; 2939 ki->p_sticks = p->p_sticks; 2940 ki->p_iticks = p->p_iticks; 2941 2942 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2943 ki->p_traceflag = p->p_traceflag; 2944 2945 2946 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2947 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2948 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2949 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2950 2951 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2952 ki->p_realstat = p->p_stat; 2953 ki->p_nice = p->p_nice; 2954 2955 ki->p_xstat = p->p_xstat; 2956 ki->p_acflag = p->p_acflag; 2957 2958 strncpy(ki->p_comm, p->p_comm, 2959 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2960 2961 strncpy(ki->p_login, p->p_session->s_login, 2962 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2963 2964 ki->p_nlwps = p->p_nlwps; 2965 ki->p_nrlwps = p->p_nrlwps; 2966 ki->p_realflag = p->p_flag; 2967 2968 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2969 ki->p_vm_rssize = 0; 2970 ki->p_vm_tsize = 0; 2971 ki->p_vm_dsize = 0; 2972 ki->p_vm_ssize = 0; 2973 l = NULL; 2974 } else { 2975 struct vmspace *vm = p->p_vmspace; 2976 2977 ki->p_vm_rssize = vm_resident_count(vm); 2978 ki->p_vm_tsize = vm->vm_tsize; 2979 ki->p_vm_dsize = vm->vm_dsize; 2980 ki->p_vm_ssize = vm->vm_ssize; 2981 2982 /* Pick a "representative" LWP */ 2983 l = proc_representative_lwp(p); 2984 ki->p_forw = PTRTOUINT64(l->l_forw); 2985 ki->p_back = PTRTOUINT64(l->l_back); 2986 ki->p_addr = PTRTOUINT64(l->l_addr); 2987 ki->p_stat = l->l_stat; 2988 ki->p_flag |= l->l_flag & P_SHARED; 2989 ki->p_swtime = l->l_swtime; 2990 ki->p_slptime = l->l_slptime; 2991 if (l->l_stat == LSONPROC) { 2992 KDASSERT(l->l_cpu != NULL); 2993 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2994 } else 2995 ki->p_schedflags = 0; 2996 ki->p_holdcnt = l->l_holdcnt; 2997 ki->p_priority = l->l_priority; 2998 ki->p_usrpri = l->l_usrpri; 2999 if (l->l_wmesg) 3000 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 3001 ki->p_wchan = PTRTOUINT64(l->l_wchan); 3002 3003 } 3004 3005 if (p->p_session->s_ttyvp) 3006 ki->p_eflag |= EPROC_CTTY; 3007 if (SESS_LEADER(p)) 3008 ki->p_eflag |= EPROC_SLEADER; 3009 3010 /* XXX Is this double check necessary? */ 3011 if (P_ZOMBIE(p)) { 3012 ki->p_uvalid = 0; 3013 } else { 3014 ki->p_uvalid = 1; 3015 3016 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3017 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3018 3019 calcru(p, &ut, &st, 0); 3020 ki->p_uutime_sec = ut.tv_sec; 3021 ki->p_uutime_usec = ut.tv_usec; 3022 ki->p_ustime_sec = st.tv_sec; 3023 ki->p_ustime_usec = st.tv_usec; 3024 3025 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3026 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3027 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3028 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3029 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3030 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3031 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3032 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3033 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3034 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3035 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3036 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3037 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 3038 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 3039 3040 timeradd(&p->p_stats->p_cru.ru_utime, 3041 &p->p_stats->p_cru.ru_stime, &ut); 3042 ki->p_uctime_sec = ut.tv_sec; 3043 ki->p_uctime_usec = ut.tv_usec; 3044 } 3045 #ifdef MULTIPROCESSOR 3046 if (l && l->l_cpu != NULL) 3047 ki->p_cpuid = l->l_cpu->ci_cpuid; 3048 else 3049 #endif 3050 ki->p_cpuid = KI_NOCPU; 3051 } 3052 3053 /* 3054 * Fill in a kinfo_lwp structure for the specified lwp. 3055 */ 3056 static void 3057 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3058 { 3059 3060 kl->l_forw = PTRTOUINT64(l->l_forw); 3061 kl->l_back = PTRTOUINT64(l->l_back); 3062 kl->l_laddr = PTRTOUINT64(l); 3063 kl->l_addr = PTRTOUINT64(l->l_addr); 3064 kl->l_stat = l->l_stat; 3065 kl->l_lid = l->l_lid; 3066 kl->l_flag = l->l_flag; 3067 3068 kl->l_swtime = l->l_swtime; 3069 kl->l_slptime = l->l_slptime; 3070 if (l->l_stat == LSONPROC) { 3071 KDASSERT(l->l_cpu != NULL); 3072 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3073 } else 3074 kl->l_schedflags = 0; 3075 kl->l_holdcnt = l->l_holdcnt; 3076 kl->l_priority = l->l_priority; 3077 kl->l_usrpri = l->l_usrpri; 3078 if (l->l_wmesg) 3079 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3080 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3081 #ifdef MULTIPROCESSOR 3082 if (l->l_cpu != NULL) 3083 kl->l_cpuid = l->l_cpu->ci_cpuid; 3084 else 3085 #endif 3086 kl->l_cpuid = KI_NOCPU; 3087 } 3088 3089 /* 3090 * Fill in an eproc structure for the specified process. 3091 */ 3092 void 3093 fill_eproc(struct proc *p, struct eproc *ep) 3094 { 3095 struct tty *tp; 3096 struct lwp *l; 3097 3098 ep->e_paddr = p; 3099 ep->e_sess = p->p_session; 3100 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3101 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3102 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3103 ep->e_vm.vm_rssize = 0; 3104 ep->e_vm.vm_tsize = 0; 3105 ep->e_vm.vm_dsize = 0; 3106 ep->e_vm.vm_ssize = 0; 3107 /* ep->e_vm.vm_pmap = XXX; */ 3108 } else { 3109 struct vmspace *vm = p->p_vmspace; 3110 3111 ep->e_vm.vm_rssize = vm_resident_count(vm); 3112 ep->e_vm.vm_tsize = vm->vm_tsize; 3113 ep->e_vm.vm_dsize = vm->vm_dsize; 3114 ep->e_vm.vm_ssize = vm->vm_ssize; 3115 3116 /* Pick a "representative" LWP */ 3117 l = proc_representative_lwp(p); 3118 3119 if (l->l_wmesg) 3120 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3121 } 3122 if (p->p_pptr) 3123 ep->e_ppid = p->p_pptr->p_pid; 3124 else 3125 ep->e_ppid = 0; 3126 ep->e_pgid = p->p_pgrp->pg_id; 3127 ep->e_sid = ep->e_sess->s_sid; 3128 ep->e_jobc = p->p_pgrp->pg_jobc; 3129 if ((p->p_flag & P_CONTROLT) && 3130 (tp = ep->e_sess->s_ttyp)) { 3131 ep->e_tdev = tp->t_dev; 3132 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3133 ep->e_tsess = tp->t_session; 3134 } else 3135 ep->e_tdev = NODEV; 3136 3137 ep->e_xsize = ep->e_xrssize = 0; 3138 ep->e_xccount = ep->e_xswrss = 0; 3139 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3140 if (SESS_LEADER(p)) 3141 ep->e_flag |= EPROC_SLEADER; 3142 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3143 } 3144
Indexes created Tue Sep 23 07:09:52 GMT 2025