init_sysctl.c revision 1.82
1 /* $NetBSD: init_sysctl.c,v 1.82 2006/09/08 11:59:52 manu 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 1.82 2006/09/08 11:59:52 manu 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_curtain = 0; 102 int security_setidcore_dump; 103 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 104 uid_t security_setidcore_owner = 0; 105 gid_t security_setidcore_group = 0; 106 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 107 108 /* 109 * try over estimating by 5 procs/lwps 110 */ 111 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 112 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 113 114 #ifndef MULTIPROCESSOR 115 #define sysctl_ncpus() (1) 116 #else /* MULTIPROCESSOR */ 117 #ifndef CPU_INFO_FOREACH 118 #define CPU_INFO_ITERATOR int 119 #define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = curcpu(); ci != NULL; ci = NULL 120 #endif 121 static int 122 sysctl_ncpus(void) 123 { 124 struct cpu_info *ci; 125 CPU_INFO_ITERATOR cii; 126 127 int ncpus = 0; 128 for (CPU_INFO_FOREACH(cii, ci)) 129 ncpus++; 130 return (ncpus); 131 } 132 #endif /* MULTIPROCESSOR */ 133 134 #ifdef DIAGNOSTIC 135 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 136 #endif 137 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 138 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 139 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 140 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 141 static int sysctl_setlen(SYSCTLFN_PROTO); 142 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 143 static int sysctl_kern_file(SYSCTLFN_PROTO); 144 static int sysctl_kern_autonice(SYSCTLFN_PROTO); 145 static int sysctl_msgbuf(SYSCTLFN_PROTO); 146 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 147 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 148 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 149 static int sysctl_kern_sysvipc(SYSCTLFN_PROTO); 150 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 151 #if NPTY > 0 152 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 153 #endif /* NPTY > 0 */ 154 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 155 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 156 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 157 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 158 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 159 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 160 static int sysctl_kern_file2(SYSCTLFN_PROTO); 161 #if NVERIEXEC > 0 162 static int sysctl_kern_veriexec(SYSCTLFN_PROTO); 163 #endif /* NVERIEXEC > 0 */ 164 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 165 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 166 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 167 static int sysctl_doeproc(SYSCTLFN_PROTO); 168 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 169 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 170 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 171 static int sysctl_hw_ncpu(SYSCTLFN_PROTO); 172 173 static void fill_kproc2(struct proc *, struct kinfo_proc2 *); 174 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 175 static void fill_file(struct kinfo_file *, const struct file *, struct proc *, 176 int); 177 178 /* 179 * ******************************************************************** 180 * section 1: setup routines 181 * ******************************************************************** 182 * these functions are stuffed into a link set for sysctl setup 183 * functions. they're never called or referenced from anywhere else. 184 * ******************************************************************** 185 */ 186 187 /* 188 * sets up the base nodes... 189 */ 190 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 191 { 192 193 sysctl_createv(clog, 0, NULL, NULL, 194 CTLFLAG_PERMANENT, 195 CTLTYPE_NODE, "kern", 196 SYSCTL_DESCR("High kernel"), 197 NULL, 0, NULL, 0, 198 CTL_KERN, CTL_EOL); 199 sysctl_createv(clog, 0, NULL, NULL, 200 CTLFLAG_PERMANENT, 201 CTLTYPE_NODE, "vm", 202 SYSCTL_DESCR("Virtual memory"), 203 NULL, 0, NULL, 0, 204 CTL_VM, CTL_EOL); 205 sysctl_createv(clog, 0, NULL, NULL, 206 CTLFLAG_PERMANENT, 207 CTLTYPE_NODE, "vfs", 208 SYSCTL_DESCR("Filesystem"), 209 NULL, 0, NULL, 0, 210 CTL_VFS, CTL_EOL); 211 sysctl_createv(clog, 0, NULL, NULL, 212 CTLFLAG_PERMANENT, 213 CTLTYPE_NODE, "net", 214 SYSCTL_DESCR("Networking"), 215 NULL, 0, NULL, 0, 216 CTL_NET, CTL_EOL); 217 sysctl_createv(clog, 0, NULL, NULL, 218 CTLFLAG_PERMANENT, 219 CTLTYPE_NODE, "debug", 220 SYSCTL_DESCR("Debugging"), 221 NULL, 0, NULL, 0, 222 CTL_DEBUG, CTL_EOL); 223 sysctl_createv(clog, 0, NULL, NULL, 224 CTLFLAG_PERMANENT, 225 CTLTYPE_NODE, "hw", 226 SYSCTL_DESCR("Generic CPU, I/O"), 227 NULL, 0, NULL, 0, 228 CTL_HW, CTL_EOL); 229 sysctl_createv(clog, 0, NULL, NULL, 230 CTLFLAG_PERMANENT, 231 CTLTYPE_NODE, "machdep", 232 SYSCTL_DESCR("Machine dependent"), 233 NULL, 0, NULL, 0, 234 CTL_MACHDEP, CTL_EOL); 235 /* 236 * this node is inserted so that the sysctl nodes in libc can 237 * operate. 238 */ 239 sysctl_createv(clog, 0, NULL, NULL, 240 CTLFLAG_PERMANENT, 241 CTLTYPE_NODE, "user", 242 SYSCTL_DESCR("User-level"), 243 NULL, 0, NULL, 0, 244 CTL_USER, CTL_EOL); 245 sysctl_createv(clog, 0, NULL, NULL, 246 CTLFLAG_PERMANENT, 247 CTLTYPE_NODE, "ddb", 248 SYSCTL_DESCR("In-kernel debugger"), 249 NULL, 0, NULL, 0, 250 CTL_DDB, CTL_EOL); 251 sysctl_createv(clog, 0, NULL, NULL, 252 CTLFLAG_PERMANENT, 253 CTLTYPE_NODE, "proc", 254 SYSCTL_DESCR("Per-process"), 255 NULL, 0, NULL, 0, 256 CTL_PROC, CTL_EOL); 257 sysctl_createv(clog, 0, NULL, NULL, 258 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 259 CTLTYPE_NODE, "vendor", 260 SYSCTL_DESCR("Vendor specific"), 261 NULL, 0, NULL, 0, 262 CTL_VENDOR, CTL_EOL); 263 sysctl_createv(clog, 0, NULL, NULL, 264 CTLFLAG_PERMANENT, 265 CTLTYPE_NODE, "emul", 266 SYSCTL_DESCR("Emulation settings"), 267 NULL, 0, NULL, 0, 268 CTL_EMUL, CTL_EOL); 269 sysctl_createv(clog, 0, NULL, NULL, 270 CTLFLAG_PERMANENT, 271 CTLTYPE_NODE, "security", 272 SYSCTL_DESCR("Security"), 273 NULL, 0, NULL, 0, 274 CTL_SECURITY, CTL_EOL); 275 } 276 277 /* 278 * this setup routine is a replacement for kern_sysctl() 279 */ 280 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 281 { 282 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 283 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 284 extern int dumponpanic; /* defined in kern/subr_prf.c */ 285 const struct sysctlnode *rnode; 286 287 sysctl_createv(clog, 0, NULL, NULL, 288 CTLFLAG_PERMANENT, 289 CTLTYPE_NODE, "kern", NULL, 290 NULL, 0, NULL, 0, 291 CTL_KERN, CTL_EOL); 292 293 sysctl_createv(clog, 0, NULL, NULL, 294 CTLFLAG_PERMANENT, 295 CTLTYPE_STRING, "ostype", 296 SYSCTL_DESCR("Operating system type"), 297 NULL, 0, &ostype, 0, 298 CTL_KERN, KERN_OSTYPE, CTL_EOL); 299 sysctl_createv(clog, 0, NULL, NULL, 300 CTLFLAG_PERMANENT, 301 CTLTYPE_STRING, "osrelease", 302 SYSCTL_DESCR("Operating system release"), 303 NULL, 0, &osrelease, 0, 304 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 305 sysctl_createv(clog, 0, NULL, NULL, 306 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 307 CTLTYPE_INT, "osrevision", 308 SYSCTL_DESCR("Operating system revision"), 309 NULL, __NetBSD_Version__, NULL, 0, 310 CTL_KERN, KERN_OSREV, CTL_EOL); 311 sysctl_createv(clog, 0, NULL, NULL, 312 CTLFLAG_PERMANENT, 313 CTLTYPE_STRING, "version", 314 SYSCTL_DESCR("Kernel version"), 315 NULL, 0, &version, 0, 316 CTL_KERN, KERN_VERSION, CTL_EOL); 317 sysctl_createv(clog, 0, NULL, NULL, 318 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 319 CTLTYPE_INT, "maxvnodes", 320 SYSCTL_DESCR("Maximum number of vnodes"), 321 sysctl_kern_maxvnodes, 0, NULL, 0, 322 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 323 sysctl_createv(clog, 0, NULL, NULL, 324 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 325 CTLTYPE_INT, "maxproc", 326 SYSCTL_DESCR("Maximum number of simultaneous processes"), 327 sysctl_kern_maxproc, 0, NULL, 0, 328 CTL_KERN, KERN_MAXPROC, CTL_EOL); 329 sysctl_createv(clog, 0, NULL, NULL, 330 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 331 CTLTYPE_INT, "maxfiles", 332 SYSCTL_DESCR("Maximum number of open files"), 333 NULL, 0, &maxfiles, 0, 334 CTL_KERN, KERN_MAXFILES, CTL_EOL); 335 sysctl_createv(clog, 0, NULL, NULL, 336 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 337 CTLTYPE_INT, "argmax", 338 SYSCTL_DESCR("Maximum number of bytes of arguments to " 339 "execve(2)"), 340 NULL, ARG_MAX, NULL, 0, 341 CTL_KERN, KERN_ARGMAX, CTL_EOL); 342 sysctl_createv(clog, 0, NULL, NULL, 343 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 344 CTLTYPE_STRING, "hostname", 345 SYSCTL_DESCR("System hostname"), 346 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 347 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 348 sysctl_createv(clog, 0, NULL, NULL, 349 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 350 CTLTYPE_INT, "hostid", 351 SYSCTL_DESCR("System host ID number"), 352 sysctl_kern_hostid, 0, NULL, 0, 353 CTL_KERN, KERN_HOSTID, CTL_EOL); 354 sysctl_createv(clog, 0, NULL, NULL, 355 CTLFLAG_PERMANENT, 356 CTLTYPE_STRUCT, "clockrate", 357 SYSCTL_DESCR("Kernel clock rates"), 358 sysctl_kern_clockrate, 0, NULL, 359 sizeof(struct clockinfo), 360 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT, 363 CTLTYPE_INT, "hardclock_ticks", 364 SYSCTL_DESCR("Number of hardclock ticks"), 365 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 366 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 367 sysctl_createv(clog, 0, NULL, NULL, 368 CTLFLAG_PERMANENT, 369 CTLTYPE_STRUCT, "vnode", 370 SYSCTL_DESCR("System vnode table"), 371 sysctl_kern_vnode, 0, NULL, 0, 372 CTL_KERN, KERN_VNODE, CTL_EOL); 373 sysctl_createv(clog, 0, NULL, NULL, 374 CTLFLAG_PERMANENT, 375 CTLTYPE_STRUCT, "file", 376 SYSCTL_DESCR("System open file table"), 377 sysctl_kern_file, 0, NULL, 0, 378 CTL_KERN, KERN_FILE, CTL_EOL); 379 #ifndef GPROF 380 sysctl_createv(clog, 0, NULL, NULL, 381 CTLFLAG_PERMANENT, 382 CTLTYPE_NODE, "profiling", 383 SYSCTL_DESCR("Profiling information (not available)"), 384 sysctl_notavail, 0, NULL, 0, 385 CTL_KERN, KERN_PROF, CTL_EOL); 386 #endif 387 sysctl_createv(clog, 0, NULL, NULL, 388 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 389 CTLTYPE_INT, "posix1version", 390 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 391 "with which the operating system attempts " 392 "to comply"), 393 NULL, _POSIX_VERSION, NULL, 0, 394 CTL_KERN, KERN_POSIX1, CTL_EOL); 395 sysctl_createv(clog, 0, NULL, NULL, 396 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 397 CTLTYPE_INT, "ngroups", 398 SYSCTL_DESCR("Maximum number of supplemental groups"), 399 NULL, NGROUPS_MAX, NULL, 0, 400 CTL_KERN, KERN_NGROUPS, CTL_EOL); 401 sysctl_createv(clog, 0, NULL, NULL, 402 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 403 CTLTYPE_INT, "job_control", 404 SYSCTL_DESCR("Whether job control is available"), 405 NULL, 1, NULL, 0, 406 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 407 sysctl_createv(clog, 0, NULL, NULL, 408 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 409 CTLTYPE_INT, "saved_ids", 410 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 411 "available"), NULL, 412 #ifdef _POSIX_SAVED_IDS 413 1, 414 #else /* _POSIX_SAVED_IDS */ 415 0, 416 #endif /* _POSIX_SAVED_IDS */ 417 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 418 sysctl_createv(clog, 0, NULL, NULL, 419 CTLFLAG_PERMANENT, 420 CTLTYPE_STRUCT, "boottime", 421 SYSCTL_DESCR("System boot time"), 422 NULL, 0, &boottime, sizeof(boottime), 423 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 424 sysctl_createv(clog, 0, NULL, NULL, 425 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 426 CTLTYPE_STRING, "domainname", 427 SYSCTL_DESCR("YP domain name"), 428 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 429 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 430 sysctl_createv(clog, 0, NULL, NULL, 431 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 432 CTLTYPE_INT, "maxpartitions", 433 SYSCTL_DESCR("Maximum number of partitions allowed per " 434 "disk"), 435 NULL, MAXPARTITIONS, NULL, 0, 436 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 437 sysctl_createv(clog, 0, NULL, NULL, 438 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 439 CTLTYPE_INT, "rawpartition", 440 SYSCTL_DESCR("Raw partition of a disk"), 441 NULL, RAW_PART, NULL, 0, 442 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT, 445 CTLTYPE_STRUCT, "timex", NULL, 446 sysctl_notavail, 0, NULL, 0, 447 CTL_KERN, KERN_TIMEX, CTL_EOL); 448 sysctl_createv(clog, 0, NULL, NULL, 449 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 450 CTLTYPE_INT, "autonicetime", 451 SYSCTL_DESCR("CPU clock seconds before non-root " 452 "process priority is lowered"), 453 sysctl_kern_autonice, 0, &autonicetime, 0, 454 CTL_KERN, KERN_AUTONICETIME, CTL_EOL); 455 sysctl_createv(clog, 0, NULL, NULL, 456 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 457 CTLTYPE_INT, "autoniceval", 458 SYSCTL_DESCR("Automatic reniced non-root process " 459 "priority"), 460 sysctl_kern_autonice, 0, &autoniceval, 0, 461 CTL_KERN, KERN_AUTONICEVAL, CTL_EOL); 462 sysctl_createv(clog, 0, NULL, NULL, 463 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 464 CTLTYPE_INT, "rtc_offset", 465 SYSCTL_DESCR("Offset of real time clock from UTC in " 466 "minutes"), 467 sysctl_kern_rtc_offset, 0, &rtc_offset, 0, 468 CTL_KERN, KERN_RTC_OFFSET, CTL_EOL); 469 sysctl_createv(clog, 0, NULL, NULL, 470 CTLFLAG_PERMANENT, 471 CTLTYPE_STRING, "root_device", 472 SYSCTL_DESCR("Name of the root device"), 473 sysctl_root_device, 0, NULL, 0, 474 CTL_KERN, KERN_ROOT_DEVICE, CTL_EOL); 475 sysctl_createv(clog, 0, NULL, NULL, 476 CTLFLAG_PERMANENT, 477 CTLTYPE_INT, "msgbufsize", 478 SYSCTL_DESCR("Size of the kernel message buffer"), 479 sysctl_msgbuf, 0, NULL, 0, 480 CTL_KERN, KERN_MSGBUFSIZE, CTL_EOL); 481 sysctl_createv(clog, 0, NULL, NULL, 482 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 483 CTLTYPE_INT, "fsync", 484 SYSCTL_DESCR("Whether the POSIX 1003.1b File " 485 "Synchronization Option is available on " 486 "this system"), 487 NULL, 1, NULL, 0, 488 CTL_KERN, KERN_FSYNC, CTL_EOL); 489 sysctl_createv(clog, 0, NULL, NULL, 490 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 491 CTLTYPE_INT, "sysvmsg", 492 SYSCTL_DESCR("System V style message support available"), 493 NULL, 494 #ifdef SYSVMSG 495 1, 496 #else /* SYSVMSG */ 497 0, 498 #endif /* SYSVMSG */ 499 NULL, 0, CTL_KERN, KERN_SYSVMSG, CTL_EOL); 500 sysctl_createv(clog, 0, NULL, NULL, 501 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 502 CTLTYPE_INT, "sysvsem", 503 SYSCTL_DESCR("System V style semaphore support " 504 "available"), NULL, 505 #ifdef SYSVSEM 506 1, 507 #else /* SYSVSEM */ 508 0, 509 #endif /* SYSVSEM */ 510 NULL, 0, CTL_KERN, KERN_SYSVSEM, CTL_EOL); 511 sysctl_createv(clog, 0, NULL, NULL, 512 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 513 CTLTYPE_INT, "sysvshm", 514 SYSCTL_DESCR("System V style shared memory support " 515 "available"), NULL, 516 #ifdef SYSVSHM 517 1, 518 #else /* SYSVSHM */ 519 0, 520 #endif /* SYSVSHM */ 521 NULL, 0, CTL_KERN, KERN_SYSVSHM, CTL_EOL); 522 sysctl_createv(clog, 0, NULL, NULL, 523 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 524 CTLTYPE_INT, "synchronized_io", 525 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 526 "I/O Option is available on this system"), 527 NULL, 1, NULL, 0, 528 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 529 sysctl_createv(clog, 0, NULL, NULL, 530 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 531 CTLTYPE_INT, "iov_max", 532 SYSCTL_DESCR("Maximum number of iovec structures per " 533 "process"), 534 NULL, IOV_MAX, NULL, 0, 535 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 536 sysctl_createv(clog, 0, NULL, NULL, 537 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 538 CTLTYPE_INT, "mapped_files", 539 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 540 "Files Option is available on this system"), 541 NULL, 1, NULL, 0, 542 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 543 sysctl_createv(clog, 0, NULL, NULL, 544 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 545 CTLTYPE_INT, "memlock", 546 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 547 "Locking Option is available on this " 548 "system"), 549 NULL, 1, NULL, 0, 550 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 551 sysctl_createv(clog, 0, NULL, NULL, 552 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 553 CTLTYPE_INT, "memlock_range", 554 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 555 "Locking Option is available on this " 556 "system"), 557 NULL, 1, NULL, 0, 558 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 559 sysctl_createv(clog, 0, NULL, NULL, 560 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 561 CTLTYPE_INT, "memory_protection", 562 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 563 "Protection Option is available on this " 564 "system"), 565 NULL, 1, NULL, 0, 566 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 567 sysctl_createv(clog, 0, NULL, NULL, 568 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 569 CTLTYPE_INT, "login_name_max", 570 SYSCTL_DESCR("Maximum login name length"), 571 NULL, LOGIN_NAME_MAX, NULL, 0, 572 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 573 sysctl_createv(clog, 0, NULL, NULL, 574 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 575 CTLTYPE_STRING, "defcorename", 576 SYSCTL_DESCR("Default core file name"), 577 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 578 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 579 sysctl_createv(clog, 0, NULL, NULL, 580 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 581 CTLTYPE_INT, "logsigexit", 582 SYSCTL_DESCR("Log process exit when caused by signals"), 583 NULL, 0, &kern_logsigexit, 0, 584 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 585 sysctl_createv(clog, 0, NULL, NULL, 586 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 587 CTLTYPE_INT, "fscale", 588 SYSCTL_DESCR("Kernel fixed-point scale factor"), 589 NULL, FSCALE, NULL, 0, 590 CTL_KERN, KERN_FSCALE, CTL_EOL); 591 sysctl_createv(clog, 0, NULL, NULL, 592 CTLFLAG_PERMANENT, 593 CTLTYPE_INT, "ccpu", 594 SYSCTL_DESCR("Scheduler exponential decay value"), 595 NULL, 0, &ccpu, 0, 596 CTL_KERN, KERN_CCPU, CTL_EOL); 597 sysctl_createv(clog, 0, NULL, NULL, 598 CTLFLAG_PERMANENT, 599 CTLTYPE_STRUCT, "cp_time", 600 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 601 sysctl_kern_cptime, 0, NULL, 0, 602 CTL_KERN, KERN_CP_TIME, CTL_EOL); 603 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 604 sysctl_createv(clog, 0, NULL, NULL, 605 CTLFLAG_PERMANENT, 606 CTLTYPE_STRUCT, "sysvipc_info", 607 SYSCTL_DESCR("System V style IPC information"), 608 sysctl_kern_sysvipc, 0, NULL, 0, 609 CTL_KERN, KERN_SYSVIPC_INFO, CTL_EOL); 610 #endif /* SYSVMSG || SYSVSEM || SYSVSHM */ 611 sysctl_createv(clog, 0, NULL, NULL, 612 CTLFLAG_PERMANENT, 613 CTLTYPE_INT, "msgbuf", 614 SYSCTL_DESCR("Kernel message buffer"), 615 sysctl_msgbuf, 0, NULL, 0, 616 CTL_KERN, KERN_MSGBUF, CTL_EOL); 617 sysctl_createv(clog, 0, NULL, NULL, 618 CTLFLAG_PERMANENT, 619 CTLTYPE_STRUCT, "consdev", 620 SYSCTL_DESCR("Console device"), 621 sysctl_consdev, 0, NULL, sizeof(dev_t), 622 CTL_KERN, KERN_CONSDEV, CTL_EOL); 623 #if NPTY > 0 624 sysctl_createv(clog, 0, NULL, NULL, 625 CTLFLAG_PERMANENT, 626 CTLTYPE_INT, "maxptys", 627 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 628 sysctl_kern_maxptys, 0, NULL, 0, 629 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 630 #endif /* NPTY > 0 */ 631 sysctl_createv(clog, 0, NULL, NULL, 632 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 633 CTLTYPE_INT, "maxphys", 634 SYSCTL_DESCR("Maximum raw I/O transfer size"), 635 NULL, MAXPHYS, NULL, 0, 636 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 637 sysctl_createv(clog, 0, NULL, NULL, 638 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 639 CTLTYPE_INT, "sbmax", 640 SYSCTL_DESCR("Maximum socket buffer size"), 641 sysctl_kern_sbmax, 0, NULL, 0, 642 CTL_KERN, KERN_SBMAX, CTL_EOL); 643 sysctl_createv(clog, 0, NULL, NULL, 644 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 645 CTLTYPE_INT, "monotonic_clock", 646 SYSCTL_DESCR("Implementation version of the POSIX " 647 "1003.1b Monotonic Clock Option"), 648 /* XXX _POSIX_VERSION */ 649 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 650 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 651 sysctl_createv(clog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT, 653 CTLTYPE_INT, "urandom", 654 SYSCTL_DESCR("Random integer value"), 655 sysctl_kern_urnd, 0, NULL, 0, 656 CTL_KERN, KERN_URND, CTL_EOL); 657 sysctl_createv(clog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 659 CTLTYPE_INT, "labelsector", 660 SYSCTL_DESCR("Sector number containing the disklabel"), 661 NULL, LABELSECTOR, NULL, 0, 662 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 663 sysctl_createv(clog, 0, NULL, NULL, 664 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 665 CTLTYPE_INT, "labeloffset", 666 SYSCTL_DESCR("Offset of the disklabel within the " 667 "sector"), 668 NULL, LABELOFFSET, NULL, 0, 669 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 670 sysctl_createv(clog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_NODE, "lwp", 673 SYSCTL_DESCR("System-wide LWP information"), 674 sysctl_kern_lwp, 0, NULL, 0, 675 CTL_KERN, KERN_LWP, CTL_EOL); 676 sysctl_createv(clog, 0, NULL, NULL, 677 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 678 CTLTYPE_INT, "forkfsleep", 679 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 680 "to process limits"), 681 sysctl_kern_forkfsleep, 0, NULL, 0, 682 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 685 CTLTYPE_INT, "posix_threads", 686 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 687 "Threads option to which the system " 688 "attempts to conform"), 689 /* XXX _POSIX_VERSION */ 690 NULL, _POSIX_THREADS, NULL, 0, 691 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 692 sysctl_createv(clog, 0, NULL, NULL, 693 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 694 CTLTYPE_INT, "posix_semaphores", 695 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 696 "Semaphores option to which the system " 697 "attempts to conform"), NULL, 698 #ifdef P1003_1B_SEMAPHORE 699 200112, 700 #else /* P1003_1B_SEMAPHORE */ 701 0, 702 #endif /* P1003_1B_SEMAPHORE */ 703 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 704 sysctl_createv(clog, 0, NULL, NULL, 705 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 706 CTLTYPE_INT, "posix_barriers", 707 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 708 "Barriers option to which the system " 709 "attempts to conform"), 710 /* XXX _POSIX_VERSION */ 711 NULL, _POSIX_BARRIERS, NULL, 0, 712 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 713 sysctl_createv(clog, 0, NULL, NULL, 714 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 715 CTLTYPE_INT, "posix_timers", 716 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 717 "Timers option to which the system " 718 "attempts to conform"), 719 /* XXX _POSIX_VERSION */ 720 NULL, _POSIX_TIMERS, NULL, 0, 721 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 722 sysctl_createv(clog, 0, NULL, NULL, 723 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 724 CTLTYPE_INT, "posix_spin_locks", 725 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 726 "Locks option to which the system attempts " 727 "to conform"), 728 /* XXX _POSIX_VERSION */ 729 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 730 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 731 sysctl_createv(clog, 0, NULL, NULL, 732 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 733 CTLTYPE_INT, "posix_reader_writer_locks", 734 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 735 "Read-Write Locks option to which the " 736 "system attempts to conform"), 737 /* XXX _POSIX_VERSION */ 738 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 739 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 740 sysctl_createv(clog, 0, NULL, NULL, 741 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 742 CTLTYPE_INT, "dump_on_panic", 743 SYSCTL_DESCR("Perform a crash dump on system panic"), 744 NULL, 0, &dumponpanic, 0, 745 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 746 #ifdef DIAGNOSTIC 747 sysctl_createv(clog, 0, NULL, NULL, 748 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 749 CTLTYPE_INT, "panic_now", 750 SYSCTL_DESCR("Trigger a panic"), 751 sysctl_kern_trigger_panic, 0, NULL, 0, 752 CTL_KERN, CTL_CREATE, CTL_EOL); 753 #endif 754 sysctl_createv(clog, 0, NULL, NULL, 755 CTLFLAG_PERMANENT, 756 CTLTYPE_INT, "root_partition", 757 SYSCTL_DESCR("Root partition on the root device"), 758 sysctl_kern_root_partition, 0, NULL, 0, 759 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 760 sysctl_createv(clog, 0, NULL, NULL, 761 CTLFLAG_PERMANENT, 762 CTLTYPE_STRUCT, "drivers", 763 SYSCTL_DESCR("List of all drivers with block and " 764 "character device numbers"), 765 sysctl_kern_drivers, 0, NULL, 0, 766 CTL_KERN, KERN_DRIVERS, CTL_EOL); 767 sysctl_createv(clog, 0, NULL, NULL, 768 CTLFLAG_PERMANENT, 769 CTLTYPE_STRUCT, "file2", 770 SYSCTL_DESCR("System open file table"), 771 sysctl_kern_file2, 0, NULL, 0, 772 CTL_KERN, KERN_FILE2, CTL_EOL); 773 #if NVERIEXEC > 0 774 sysctl_createv(clog, 0, NULL, NULL, 775 CTLFLAG_PERMANENT, 776 CTLTYPE_NODE, "veriexec", 777 SYSCTL_DESCR("Verified Exec"), 778 NULL, 0, NULL, 0, 779 CTL_KERN, KERN_VERIEXEC, CTL_EOL); 780 sysctl_createv(clog, 0, NULL, NULL, 781 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 782 CTLTYPE_INT, "verbose", 783 SYSCTL_DESCR("Verified Exec verbose level"), 784 NULL, 0, &veriexec_verbose, 0, 785 CTL_KERN, KERN_VERIEXEC, VERIEXEC_VERBOSE, 786 CTL_EOL); 787 sysctl_createv(clog, 0, NULL, NULL, 788 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 789 CTLTYPE_INT, "strict", 790 SYSCTL_DESCR("Verified Exec strict level"), 791 sysctl_kern_veriexec, 0, NULL, 0, 792 CTL_KERN, KERN_VERIEXEC, VERIEXEC_STRICT, CTL_EOL); 793 sysctl_createv(clog, 0, NULL, NULL, 794 CTLFLAG_PERMANENT, 795 CTLTYPE_STRING, "algorithms", 796 SYSCTL_DESCR("Verified Exec supported hashing " 797 "algorithms"), 798 sysctl_kern_veriexec, 0, NULL, 0, 799 CTL_KERN, KERN_VERIEXEC, VERIEXEC_ALGORITHMS, CTL_EOL); 800 sysctl_createv(clog, 0, NULL, &veriexec_count_node, 801 CTLFLAG_PERMANENT, 802 CTLTYPE_NODE, "count", 803 SYSCTL_DESCR("Number of fingerprints on device(s)"), 804 NULL, 0, NULL, 0, 805 CTL_KERN, KERN_VERIEXEC, VERIEXEC_COUNT, CTL_EOL); 806 #endif /* NVERIEXEC > 0 */ 807 sysctl_createv(clog, 0, NULL, NULL, 808 CTLFLAG_PERMANENT, 809 CTLTYPE_STRUCT, "cp_id", 810 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 811 sysctl_kern_cpid, 0, NULL, 0, 812 CTL_KERN, KERN_CP_ID, CTL_EOL); 813 814 sysctl_createv(clog, 0, NULL, &rnode, 815 CTLFLAG_PERMANENT, 816 CTLTYPE_NODE, "coredump", 817 SYSCTL_DESCR("Coredump settings."), 818 NULL, 0, NULL, 0, 819 CTL_KERN, CTL_CREATE, CTL_EOL); 820 sysctl_createv(clog, 0, &rnode, &rnode, 821 CTLFLAG_PERMANENT, 822 CTLTYPE_NODE, "setid", 823 SYSCTL_DESCR("Set-id processes' coredump settings."), 824 NULL, 0, NULL, 0, 825 CTL_CREATE, CTL_EOL); 826 sysctl_createv(clog, 0, &rnode, NULL, 827 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 828 CTLTYPE_INT, "dump", 829 SYSCTL_DESCR("Allow set-id processes to dump core."), 830 sysctl_security_setidcore, 0, &security_setidcore_dump, 831 sizeof(security_setidcore_dump), 832 CTL_CREATE, CTL_EOL); 833 sysctl_createv(clog, 0, &rnode, NULL, 834 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 835 CTLTYPE_STRING, "path", 836 SYSCTL_DESCR("Path pattern for set-id coredumps."), 837 sysctl_security_setidcorename, 0, 838 &security_setidcore_path, 839 sizeof(security_setidcore_path), 840 CTL_CREATE, CTL_EOL); 841 sysctl_createv(clog, 0, &rnode, NULL, 842 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 843 CTLTYPE_INT, "owner", 844 SYSCTL_DESCR("Owner id for set-id processes' cores."), 845 sysctl_security_setidcore, 0, &security_setidcore_owner, 846 0, 847 CTL_CREATE, CTL_EOL); 848 sysctl_createv(clog, 0, &rnode, NULL, 849 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 850 CTLTYPE_INT, "group", 851 SYSCTL_DESCR("Group id for set-id processes' cores."), 852 sysctl_security_setidcore, 0, &security_setidcore_group, 853 0, 854 CTL_CREATE, CTL_EOL); 855 sysctl_createv(clog, 0, &rnode, NULL, 856 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 857 CTLTYPE_INT, "mode", 858 SYSCTL_DESCR("Mode for set-id processes' cores."), 859 sysctl_security_setidcore, 0, &security_setidcore_mode, 860 0, 861 CTL_CREATE, CTL_EOL); 862 } 863 864 SYSCTL_SETUP(sysctl_kern_proc_setup, 865 "sysctl kern.proc/proc2/proc_args subtree setup") 866 { 867 868 sysctl_createv(clog, 0, NULL, NULL, 869 CTLFLAG_PERMANENT, 870 CTLTYPE_NODE, "kern", NULL, 871 NULL, 0, NULL, 0, 872 CTL_KERN, CTL_EOL); 873 874 sysctl_createv(clog, 0, NULL, NULL, 875 CTLFLAG_PERMANENT, 876 CTLTYPE_NODE, "proc", 877 SYSCTL_DESCR("System-wide process information"), 878 sysctl_doeproc, 0, NULL, 0, 879 CTL_KERN, KERN_PROC, CTL_EOL); 880 sysctl_createv(clog, 0, NULL, NULL, 881 CTLFLAG_PERMANENT, 882 CTLTYPE_NODE, "proc2", 883 SYSCTL_DESCR("Machine-independent process information"), 884 sysctl_doeproc, 0, NULL, 0, 885 CTL_KERN, KERN_PROC2, CTL_EOL); 886 sysctl_createv(clog, 0, NULL, NULL, 887 CTLFLAG_PERMANENT, 888 CTLTYPE_NODE, "proc_args", 889 SYSCTL_DESCR("Process argument information"), 890 sysctl_kern_proc_args, 0, NULL, 0, 891 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 892 893 /* 894 "nodes" under these: 895 896 KERN_PROC_ALL 897 KERN_PROC_PID pid 898 KERN_PROC_PGRP pgrp 899 KERN_PROC_SESSION sess 900 KERN_PROC_TTY tty 901 KERN_PROC_UID uid 902 KERN_PROC_RUID uid 903 KERN_PROC_GID gid 904 KERN_PROC_RGID gid 905 906 all in all, probably not worth the effort... 907 */ 908 } 909 910 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 911 { 912 u_int u; 913 u_quad_t q; 914 915 sysctl_createv(clog, 0, NULL, NULL, 916 CTLFLAG_PERMANENT, 917 CTLTYPE_NODE, "hw", NULL, 918 NULL, 0, NULL, 0, 919 CTL_HW, CTL_EOL); 920 921 sysctl_createv(clog, 0, NULL, NULL, 922 CTLFLAG_PERMANENT, 923 CTLTYPE_STRING, "machine", 924 SYSCTL_DESCR("Machine class"), 925 NULL, 0, machine, 0, 926 CTL_HW, HW_MACHINE, CTL_EOL); 927 sysctl_createv(clog, 0, NULL, NULL, 928 CTLFLAG_PERMANENT, 929 CTLTYPE_STRING, "model", 930 SYSCTL_DESCR("Machine model"), 931 NULL, 0, cpu_model, 0, 932 CTL_HW, HW_MODEL, CTL_EOL); 933 sysctl_createv(clog, 0, NULL, NULL, 934 CTLFLAG_PERMANENT, 935 CTLTYPE_INT, "ncpu", 936 SYSCTL_DESCR("Number of active CPUs"), 937 sysctl_hw_ncpu, 0, NULL, 0, 938 CTL_HW, HW_NCPU, CTL_EOL); 939 sysctl_createv(clog, 0, NULL, NULL, 940 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 941 CTLTYPE_INT, "byteorder", 942 SYSCTL_DESCR("System byte order"), 943 NULL, BYTE_ORDER, NULL, 0, 944 CTL_HW, HW_BYTEORDER, CTL_EOL); 945 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 946 UINT_MAX : physmem * PAGE_SIZE; 947 sysctl_createv(clog, 0, NULL, NULL, 948 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 949 CTLTYPE_INT, "physmem", 950 SYSCTL_DESCR("Bytes of physical memory"), 951 NULL, u, NULL, 0, 952 CTL_HW, HW_PHYSMEM, CTL_EOL); 953 sysctl_createv(clog, 0, NULL, NULL, 954 CTLFLAG_PERMANENT, 955 CTLTYPE_INT, "usermem", 956 SYSCTL_DESCR("Bytes of non-kernel memory"), 957 sysctl_hw_usermem, 0, NULL, 0, 958 CTL_HW, HW_USERMEM, CTL_EOL); 959 sysctl_createv(clog, 0, NULL, NULL, 960 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 961 CTLTYPE_INT, "pagesize", 962 SYSCTL_DESCR("Software page size"), 963 NULL, PAGE_SIZE, NULL, 0, 964 CTL_HW, HW_PAGESIZE, CTL_EOL); 965 sysctl_createv(clog, 0, NULL, NULL, 966 CTLFLAG_PERMANENT, 967 CTLTYPE_STRING, "machine_arch", 968 SYSCTL_DESCR("Machine CPU class"), 969 NULL, 0, machine_arch, 0, 970 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 971 sysctl_createv(clog, 0, NULL, NULL, 972 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 973 CTLTYPE_INT, "alignbytes", 974 SYSCTL_DESCR("Alignment constraint for all possible " 975 "data types"), 976 NULL, ALIGNBYTES, NULL, 0, 977 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 978 sysctl_createv(clog, 0, NULL, NULL, 979 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 980 CTLTYPE_STRING, "cnmagic", 981 SYSCTL_DESCR("Console magic key sequence"), 982 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 983 CTL_HW, HW_CNMAGIC, CTL_EOL); 984 q = (u_quad_t)physmem * PAGE_SIZE; 985 sysctl_createv(clog, 0, NULL, NULL, 986 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 987 CTLTYPE_QUAD, "physmem64", 988 SYSCTL_DESCR("Bytes of physical memory"), 989 NULL, q, NULL, 0, 990 CTL_HW, HW_PHYSMEM64, CTL_EOL); 991 sysctl_createv(clog, 0, NULL, NULL, 992 CTLFLAG_PERMANENT, 993 CTLTYPE_QUAD, "usermem64", 994 SYSCTL_DESCR("Bytes of non-kernel memory"), 995 sysctl_hw_usermem, 0, NULL, 0, 996 CTL_HW, HW_USERMEM64, CTL_EOL); 997 } 998 999 #ifdef DEBUG 1000 /* 1001 * Debugging related system variables. 1002 */ 1003 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 1004 struct ctldebug debug5, debug6, debug7, debug8, debug9; 1005 struct ctldebug debug10, debug11, debug12, debug13, debug14; 1006 struct ctldebug debug15, debug16, debug17, debug18, debug19; 1007 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 1008 &debug0, &debug1, &debug2, &debug3, &debug4, 1009 &debug5, &debug6, &debug7, &debug8, &debug9, 1010 &debug10, &debug11, &debug12, &debug13, &debug14, 1011 &debug15, &debug16, &debug17, &debug18, &debug19, 1012 }; 1013 1014 /* 1015 * this setup routine is a replacement for debug_sysctl() 1016 * 1017 * note that it creates several nodes per defined debug variable 1018 */ 1019 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1020 { 1021 struct ctldebug *cdp; 1022 char nodename[20]; 1023 int i; 1024 1025 /* 1026 * two ways here: 1027 * 1028 * the "old" way (debug.name -> value) which was emulated by 1029 * the sysctl(8) binary 1030 * 1031 * the new way, which the sysctl(8) binary was actually using 1032 1033 node debug 1034 node debug.0 1035 string debug.0.name 1036 int debug.0.value 1037 int debug.name 1038 1039 */ 1040 1041 sysctl_createv(clog, 0, NULL, NULL, 1042 CTLFLAG_PERMANENT, 1043 CTLTYPE_NODE, "debug", NULL, 1044 NULL, 0, NULL, 0, 1045 CTL_DEBUG, CTL_EOL); 1046 1047 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1048 cdp = debugvars[i]; 1049 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1050 continue; 1051 1052 snprintf(nodename, sizeof(nodename), "debug%d", i); 1053 sysctl_createv(clog, 0, NULL, NULL, 1054 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1055 CTLTYPE_NODE, nodename, NULL, 1056 NULL, 0, NULL, 0, 1057 CTL_DEBUG, i, CTL_EOL); 1058 sysctl_createv(clog, 0, NULL, NULL, 1059 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1060 CTLTYPE_STRING, "name", NULL, 1061 /*XXXUNCONST*/ 1062 NULL, 0, __UNCONST(cdp->debugname), 0, 1063 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1064 sysctl_createv(clog, 0, NULL, NULL, 1065 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1066 CTLTYPE_INT, "value", NULL, 1067 NULL, 0, cdp->debugvar, 0, 1068 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1069 sysctl_createv(clog, 0, NULL, NULL, 1070 CTLFLAG_PERMANENT, 1071 CTLTYPE_INT, cdp->debugname, NULL, 1072 NULL, 0, cdp->debugvar, 0, 1073 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1074 } 1075 } 1076 #endif /* DEBUG */ 1077 1078 SYSCTL_SETUP(sysctl_security_setup, "sysctl security subtree setup") 1079 { 1080 const struct sysctlnode *rnode = NULL; 1081 1082 sysctl_createv(clog, 0, NULL, &rnode, 1083 CTLFLAG_PERMANENT, 1084 CTLTYPE_NODE, "security", NULL, 1085 NULL, 0, NULL, 0, 1086 CTL_SECURITY, CTL_EOL); 1087 1088 sysctl_createv(clog, 0, &rnode, NULL, 1089 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 1090 CTLTYPE_INT, "curtain", 1091 SYSCTL_DESCR("Curtain information about objects" 1092 " to users not owning them."), 1093 NULL, 0, &security_curtain, 0, 1094 CTL_CREATE, CTL_EOL); 1095 } 1096 1097 /* 1098 * ******************************************************************** 1099 * section 2: private node-specific helper routines. 1100 * ******************************************************************** 1101 */ 1102 1103 #ifdef DIAGNOSTIC 1104 static int 1105 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1106 { 1107 int newtrig, error; 1108 struct sysctlnode node; 1109 1110 newtrig = 0; 1111 node = *rnode; 1112 node.sysctl_data = &newtrig; 1113 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1114 if (error || newp == NULL) 1115 return (error); 1116 1117 if (newtrig != 0) 1118 panic("Panic triggered"); 1119 1120 return (error); 1121 } 1122 #endif 1123 1124 /* 1125 * sysctl helper routine for kern.maxvnodes. drain vnodes if 1126 * new value is lower than desiredvnodes and then calls reinit 1127 * routines that needs to adjust to the new value. 1128 */ 1129 static int 1130 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1131 { 1132 int error, new_vnodes, old_vnodes; 1133 struct sysctlnode node; 1134 1135 new_vnodes = desiredvnodes; 1136 node = *rnode; 1137 node.sysctl_data = &new_vnodes; 1138 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1139 if (error || newp == NULL) 1140 return (error); 1141 1142 old_vnodes = desiredvnodes; 1143 desiredvnodes = new_vnodes; 1144 if (new_vnodes < old_vnodes) { 1145 error = vfs_drainvnodes(new_vnodes, l); 1146 if (error) { 1147 desiredvnodes = old_vnodes; 1148 return (error); 1149 } 1150 } 1151 vfs_reinit(); 1152 nchreinit(); 1153 1154 return (0); 1155 } 1156 1157 /* 1158 * sysctl helper routine for rtc_offset - set time after changes 1159 */ 1160 static int 1161 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1162 { 1163 struct timespec ts, delta; 1164 int error, new_rtc_offset; 1165 struct sysctlnode node; 1166 1167 new_rtc_offset = rtc_offset; 1168 node = *rnode; 1169 node.sysctl_data = &new_rtc_offset; 1170 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1171 if (error || newp == NULL) 1172 return (error); 1173 1174 if (securelevel > 0) 1175 return (EPERM); 1176 if (rtc_offset == new_rtc_offset) 1177 return (0); 1178 1179 /* if we change the offset, adjust the time */ 1180 nanotime(&ts); 1181 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1182 delta.tv_nsec = 0; 1183 timespecadd(&ts, &delta, &ts); 1184 rtc_offset = new_rtc_offset; 1185 settime(l->l_proc, &ts); 1186 1187 return (0); 1188 } 1189 1190 /* 1191 * sysctl helper routine for kern.maxproc. ensures that the new 1192 * values are not too low or too high. 1193 */ 1194 static int 1195 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1196 { 1197 int error, nmaxproc; 1198 struct sysctlnode node; 1199 1200 nmaxproc = maxproc; 1201 node = *rnode; 1202 node.sysctl_data = &nmaxproc; 1203 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1204 if (error || newp == NULL) 1205 return (error); 1206 1207 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1208 return (EINVAL); 1209 #ifdef __HAVE_CPU_MAXPROC 1210 if (nmaxproc > cpu_maxproc()) 1211 return (EINVAL); 1212 #endif 1213 maxproc = nmaxproc; 1214 1215 return (0); 1216 } 1217 1218 /* 1219 * sysctl helper function for kern.hostid. the hostid is a long, but 1220 * we export it as an int, so we need to give it a little help. 1221 */ 1222 static int 1223 sysctl_kern_hostid(SYSCTLFN_ARGS) 1224 { 1225 int error, inthostid; 1226 struct sysctlnode node; 1227 1228 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1229 node = *rnode; 1230 node.sysctl_data = &inthostid; 1231 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1232 if (error || newp == NULL) 1233 return (error); 1234 1235 hostid = (unsigned)inthostid; 1236 1237 return (0); 1238 } 1239 1240 /* 1241 * sysctl helper function for kern.hostname and kern.domainnname. 1242 * resets the relevant recorded length when the underlying name is 1243 * changed. 1244 */ 1245 static int 1246 sysctl_setlen(SYSCTLFN_ARGS) 1247 { 1248 int error; 1249 1250 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1251 if (error || newp == NULL) 1252 return (error); 1253 1254 switch (rnode->sysctl_num) { 1255 case KERN_HOSTNAME: 1256 hostnamelen = strlen((const char*)rnode->sysctl_data); 1257 break; 1258 case KERN_DOMAINNAME: 1259 domainnamelen = strlen((const char*)rnode->sysctl_data); 1260 break; 1261 } 1262 1263 return (0); 1264 } 1265 1266 /* 1267 * sysctl helper routine for kern.clockrate. assembles a struct on 1268 * the fly to be returned to the caller. 1269 */ 1270 static int 1271 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1272 { 1273 struct clockinfo clkinfo; 1274 struct sysctlnode node; 1275 1276 clkinfo.tick = tick; 1277 clkinfo.tickadj = tickadj; 1278 clkinfo.hz = hz; 1279 clkinfo.profhz = profhz; 1280 clkinfo.stathz = stathz ? stathz : hz; 1281 1282 node = *rnode; 1283 node.sysctl_data = &clkinfo; 1284 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1285 } 1286 1287 1288 /* 1289 * sysctl helper routine for kern.file pseudo-subtree. 1290 */ 1291 static int 1292 sysctl_kern_file(SYSCTLFN_ARGS) 1293 { 1294 int error; 1295 size_t buflen; 1296 struct file *fp; 1297 char *start, *where; 1298 1299 start = where = oldp; 1300 buflen = *oldlenp; 1301 if (where == NULL) { 1302 /* 1303 * overestimate by 10 files 1304 */ 1305 *oldlenp = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 1306 return (0); 1307 } 1308 1309 /* 1310 * first copyout filehead 1311 */ 1312 if (buflen < sizeof(filehead)) { 1313 *oldlenp = 0; 1314 return (0); 1315 } 1316 error = copyout(&filehead, where, sizeof(filehead)); 1317 if (error) 1318 return (error); 1319 buflen -= sizeof(filehead); 1320 where += sizeof(filehead); 1321 1322 /* 1323 * followed by an array of file structures 1324 */ 1325 LIST_FOREACH(fp, &filehead, f_list) { 1326 if (kauth_authorize_generic(l->l_cred, 1327 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 1328 continue; 1329 if (buflen < sizeof(struct file)) { 1330 *oldlenp = where - start; 1331 return (ENOMEM); 1332 } 1333 error = copyout(fp, where, sizeof(struct file)); 1334 if (error) 1335 return (error); 1336 buflen -= sizeof(struct file); 1337 where += sizeof(struct file); 1338 } 1339 *oldlenp = where - start; 1340 return (0); 1341 } 1342 1343 /* 1344 * sysctl helper routine for kern.autonicetime and kern.autoniceval. 1345 * asserts that the assigned value is in the correct range. 1346 */ 1347 static int 1348 sysctl_kern_autonice(SYSCTLFN_ARGS) 1349 { 1350 int error, t = 0; 1351 struct sysctlnode node; 1352 1353 node = *rnode; 1354 t = *(int*)node.sysctl_data; 1355 node.sysctl_data = &t; 1356 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1357 if (error || newp == NULL) 1358 return (error); 1359 1360 switch (node.sysctl_num) { 1361 case KERN_AUTONICETIME: 1362 if (t >= 0) 1363 autonicetime = t; 1364 break; 1365 case KERN_AUTONICEVAL: 1366 if (t < PRIO_MIN) 1367 t = PRIO_MIN; 1368 else if (t > PRIO_MAX) 1369 t = PRIO_MAX; 1370 autoniceval = t; 1371 break; 1372 } 1373 1374 return (0); 1375 } 1376 1377 /* 1378 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. for the 1379 * former it merely checks the message buffer is set up. for the latter, 1380 * it also copies out the data if necessary. 1381 */ 1382 static int 1383 sysctl_msgbuf(SYSCTLFN_ARGS) 1384 { 1385 char *where = oldp; 1386 size_t len, maxlen; 1387 long beg, end; 1388 int error; 1389 1390 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1391 msgbufenabled = 0; 1392 return (ENXIO); 1393 } 1394 1395 switch (rnode->sysctl_num) { 1396 case KERN_MSGBUFSIZE: { 1397 struct sysctlnode node = *rnode; 1398 int msg_bufs = (int)msgbufp->msg_bufs; 1399 node.sysctl_data = &msg_bufs; 1400 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1401 } 1402 case KERN_MSGBUF: 1403 break; 1404 default: 1405 return (EOPNOTSUPP); 1406 } 1407 1408 if (newp != NULL) 1409 return (EPERM); 1410 1411 if (oldp == NULL) { 1412 /* always return full buffer size */ 1413 *oldlenp = msgbufp->msg_bufs; 1414 return (0); 1415 } 1416 1417 error = 0; 1418 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1419 1420 /* 1421 * First, copy from the write pointer to the end of 1422 * message buffer. 1423 */ 1424 beg = msgbufp->msg_bufx; 1425 end = msgbufp->msg_bufs; 1426 while (maxlen > 0) { 1427 len = MIN(end - beg, maxlen); 1428 if (len == 0) 1429 break; 1430 error = copyout(&msgbufp->msg_bufc[beg], where, len); 1431 if (error) 1432 break; 1433 where += len; 1434 maxlen -= len; 1435 1436 /* 1437 * ... then, copy from the beginning of message buffer to 1438 * the write pointer. 1439 */ 1440 beg = 0; 1441 end = msgbufp->msg_bufx; 1442 } 1443 1444 return (error); 1445 } 1446 1447 /* 1448 * sysctl helper routine for kern.defcorename. in the case of a new 1449 * string being assigned, check that it's not a zero-length string. 1450 * (XXX the check in -current doesn't work, but do we really care?) 1451 */ 1452 static int 1453 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1454 { 1455 int error; 1456 char *newcorename; 1457 struct sysctlnode node; 1458 1459 newcorename = PNBUF_GET(); 1460 node = *rnode; 1461 node.sysctl_data = &newcorename[0]; 1462 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1463 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1464 if (error || newp == NULL) { 1465 goto done; 1466 } 1467 1468 /* 1469 * when sysctl_lookup() deals with a string, it's guaranteed 1470 * to come back nul terminated. so there. :) 1471 */ 1472 if (strlen(newcorename) == 0) { 1473 error = EINVAL; 1474 } else { 1475 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1476 error = 0; 1477 } 1478 done: 1479 PNBUF_PUT(newcorename); 1480 return error; 1481 } 1482 1483 /* 1484 * sysctl helper routine for kern.cp_time node. adds up cpu time 1485 * across all cpus. 1486 */ 1487 static int 1488 sysctl_kern_cptime(SYSCTLFN_ARGS) 1489 { 1490 struct sysctlnode node = *rnode; 1491 1492 #ifndef MULTIPROCESSOR 1493 1494 if (namelen == 1) { 1495 if (name[0] != 0) 1496 return (ENOENT); 1497 /* 1498 * you're allowed to ask for the zero'th processor 1499 */ 1500 name++; 1501 namelen--; 1502 } 1503 node.sysctl_data = curcpu()->ci_schedstate.spc_cp_time; 1504 node.sysctl_size = sizeof(curcpu()->ci_schedstate.spc_cp_time); 1505 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1506 1507 #else /* MULTIPROCESSOR */ 1508 1509 uint64_t *cp_time = NULL; 1510 int error, n = sysctl_ncpus(), i; 1511 struct cpu_info *ci; 1512 CPU_INFO_ITERATOR cii; 1513 1514 /* 1515 * if you specifically pass a buffer that is the size of the 1516 * sum, or if you are probing for the size, you get the "sum" 1517 * of cp_time (and the size thereof) across all processors. 1518 * 1519 * alternately, you can pass an additional mib number and get 1520 * cp_time for that particular processor. 1521 */ 1522 switch (namelen) { 1523 case 0: 1524 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1525 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1526 n = -1; /* SUM */ 1527 } 1528 else { 1529 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1530 n = -2; /* ALL */ 1531 } 1532 break; 1533 case 1: 1534 if (name[0] < 0 || name[0] >= n) 1535 return (ENOENT); /* ENOSUCHPROCESSOR */ 1536 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1537 n = name[0]; 1538 /* 1539 * adjust these so that sysctl_lookup() will be happy 1540 */ 1541 name++; 1542 namelen--; 1543 break; 1544 default: 1545 return (EINVAL); 1546 } 1547 1548 cp_time = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 1549 if (cp_time == NULL) 1550 return (ENOMEM); 1551 node.sysctl_data = cp_time; 1552 memset(cp_time, 0, node.sysctl_size); 1553 1554 for (CPU_INFO_FOREACH(cii, ci)) { 1555 if (n <= 0) 1556 for (i = 0; i < CPUSTATES; i++) 1557 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1558 /* 1559 * if a specific processor was requested and we just 1560 * did it, we're done here 1561 */ 1562 if (n == 0) 1563 break; 1564 /* 1565 * if doing "all", skip to next cp_time set for next processor 1566 */ 1567 if (n == -2) 1568 cp_time += CPUSTATES; 1569 /* 1570 * if we're doing a specific processor, we're one 1571 * processor closer 1572 */ 1573 if (n > 0) 1574 n--; 1575 } 1576 1577 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1578 free(node.sysctl_data, M_TEMP); 1579 return (error); 1580 1581 #endif /* MULTIPROCESSOR */ 1582 } 1583 1584 #if defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) 1585 /* 1586 * sysctl helper routine for kern.sysvipc_info subtree. 1587 */ 1588 1589 #define FILL_PERM(src, dst) do { \ 1590 (dst)._key = (src)._key; \ 1591 (dst).uid = (src).uid; \ 1592 (dst).gid = (src).gid; \ 1593 (dst).cuid = (src).cuid; \ 1594 (dst).cgid = (src).cgid; \ 1595 (dst).mode = (src).mode; \ 1596 (dst)._seq = (src)._seq; \ 1597 } while (/*CONSTCOND*/ 0); 1598 #define FILL_MSG(src, dst) do { \ 1599 FILL_PERM((src).msg_perm, (dst).msg_perm); \ 1600 (dst).msg_qnum = (src).msg_qnum; \ 1601 (dst).msg_qbytes = (src).msg_qbytes; \ 1602 (dst)._msg_cbytes = (src)._msg_cbytes; \ 1603 (dst).msg_lspid = (src).msg_lspid; \ 1604 (dst).msg_lrpid = (src).msg_lrpid; \ 1605 (dst).msg_stime = (src).msg_stime; \ 1606 (dst).msg_rtime = (src).msg_rtime; \ 1607 (dst).msg_ctime = (src).msg_ctime; \ 1608 } while (/*CONSTCOND*/ 0) 1609 #define FILL_SEM(src, dst) do { \ 1610 FILL_PERM((src).sem_perm, (dst).sem_perm); \ 1611 (dst).sem_nsems = (src).sem_nsems; \ 1612 (dst).sem_otime = (src).sem_otime; \ 1613 (dst).sem_ctime = (src).sem_ctime; \ 1614 } while (/*CONSTCOND*/ 0) 1615 #define FILL_SHM(src, dst) do { \ 1616 FILL_PERM((src).shm_perm, (dst).shm_perm); \ 1617 (dst).shm_segsz = (src).shm_segsz; \ 1618 (dst).shm_lpid = (src).shm_lpid; \ 1619 (dst).shm_cpid = (src).shm_cpid; \ 1620 (dst).shm_atime = (src).shm_atime; \ 1621 (dst).shm_dtime = (src).shm_dtime; \ 1622 (dst).shm_ctime = (src).shm_ctime; \ 1623 (dst).shm_nattch = (src).shm_nattch; \ 1624 } while (/*CONSTCOND*/ 0) 1625 1626 static int 1627 sysctl_kern_sysvipc(SYSCTLFN_ARGS) 1628 { 1629 void *where = oldp; 1630 size_t *sizep = oldlenp; 1631 #ifdef SYSVMSG 1632 struct msg_sysctl_info *msgsi = NULL; 1633 #endif 1634 #ifdef SYSVSEM 1635 struct sem_sysctl_info *semsi = NULL; 1636 #endif 1637 #ifdef SYSVSHM 1638 struct shm_sysctl_info *shmsi = NULL; 1639 #endif 1640 size_t infosize, dssize, tsize, buflen; 1641 void *bf = NULL; 1642 char *start; 1643 int32_t nds; 1644 int i, error, ret; 1645 1646 if (namelen != 1) 1647 return (EINVAL); 1648 1649 start = where; 1650 buflen = *sizep; 1651 1652 switch (*name) { 1653 case KERN_SYSVIPC_MSG_INFO: 1654 #ifdef SYSVMSG 1655 infosize = sizeof(msgsi->msginfo); 1656 nds = msginfo.msgmni; 1657 dssize = sizeof(msgsi->msgids[0]); 1658 break; 1659 #else 1660 return (EINVAL); 1661 #endif 1662 case KERN_SYSVIPC_SEM_INFO: 1663 #ifdef SYSVSEM 1664 infosize = sizeof(semsi->seminfo); 1665 nds = seminfo.semmni; 1666 dssize = sizeof(semsi->semids[0]); 1667 break; 1668 #else 1669 return (EINVAL); 1670 #endif 1671 case KERN_SYSVIPC_SHM_INFO: 1672 #ifdef SYSVSHM 1673 infosize = sizeof(shmsi->shminfo); 1674 nds = shminfo.shmmni; 1675 dssize = sizeof(shmsi->shmids[0]); 1676 break; 1677 #else 1678 return (EINVAL); 1679 #endif 1680 default: 1681 return (EINVAL); 1682 } 1683 /* 1684 * Round infosize to 64 bit boundary if requesting more than just 1685 * the info structure or getting the total data size. 1686 */ 1687 if (where == NULL || *sizep > infosize) 1688 infosize = ((infosize + 7) / 8) * 8; 1689 tsize = infosize + nds * dssize; 1690 1691 /* Return just the total size required. */ 1692 if (where == NULL) { 1693 *sizep = tsize; 1694 return (0); 1695 } 1696 1697 /* Not enough room for even the info struct. */ 1698 if (buflen < infosize) { 1699 *sizep = 0; 1700 return (ENOMEM); 1701 } 1702 bf = malloc(min(tsize, buflen), M_TEMP, M_WAITOK); 1703 memset(bf, 0, min(tsize, buflen)); 1704 1705 switch (*name) { 1706 #ifdef SYSVMSG 1707 case KERN_SYSVIPC_MSG_INFO: 1708 msgsi = (struct msg_sysctl_info *)bf; 1709 msgsi->msginfo = msginfo; 1710 break; 1711 #endif 1712 #ifdef SYSVSEM 1713 case KERN_SYSVIPC_SEM_INFO: 1714 semsi = (struct sem_sysctl_info *)bf; 1715 semsi->seminfo = seminfo; 1716 break; 1717 #endif 1718 #ifdef SYSVSHM 1719 case KERN_SYSVIPC_SHM_INFO: 1720 shmsi = (struct shm_sysctl_info *)bf; 1721 shmsi->shminfo = shminfo; 1722 break; 1723 #endif 1724 } 1725 buflen -= infosize; 1726 1727 ret = 0; 1728 if (buflen > 0) { 1729 /* Fill in the IPC data structures. */ 1730 for (i = 0; i < nds; i++) { 1731 if (buflen < dssize) { 1732 ret = ENOMEM; 1733 break; 1734 } 1735 switch (*name) { 1736 #ifdef SYSVMSG 1737 case KERN_SYSVIPC_MSG_INFO: 1738 FILL_MSG(msqids[i], msgsi->msgids[i]); 1739 break; 1740 #endif 1741 #ifdef SYSVSEM 1742 case KERN_SYSVIPC_SEM_INFO: 1743 FILL_SEM(sema[i], semsi->semids[i]); 1744 break; 1745 #endif 1746 #ifdef SYSVSHM 1747 case KERN_SYSVIPC_SHM_INFO: 1748 FILL_SHM(shmsegs[i], shmsi->shmids[i]); 1749 break; 1750 #endif 1751 } 1752 buflen -= dssize; 1753 } 1754 } 1755 *sizep -= buflen; 1756 error = copyout(bf, start, *sizep); 1757 /* If copyout succeeded, use return code set earlier. */ 1758 if (error == 0) 1759 error = ret; 1760 if (bf) 1761 free(bf, M_TEMP); 1762 return (error); 1763 } 1764 1765 #undef FILL_PERM 1766 #undef FILL_MSG 1767 #undef FILL_SEM 1768 #undef FILL_SHM 1769 1770 #endif /* defined(SYSVMSG) || defined(SYSVSEM) || defined(SYSVSHM) */ 1771 1772 #if NPTY > 0 1773 /* 1774 * sysctl helper routine for kern.maxptys. ensures that any new value 1775 * is acceptable to the pty subsystem. 1776 */ 1777 static int 1778 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1779 { 1780 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1781 int error, xmax; 1782 struct sysctlnode node; 1783 1784 /* get current value of maxptys */ 1785 xmax = pty_maxptys(0, 0); 1786 1787 node = *rnode; 1788 node.sysctl_data = &xmax; 1789 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1790 if (error || newp == NULL) 1791 return (error); 1792 1793 if (xmax != pty_maxptys(xmax, 1)) 1794 return (EINVAL); 1795 1796 return (0); 1797 } 1798 #endif /* NPTY > 0 */ 1799 1800 /* 1801 * sysctl helper routine for kern.sbmax. basically just ensures that 1802 * any new value is not too small. 1803 */ 1804 static int 1805 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1806 { 1807 int error, new_sbmax; 1808 struct sysctlnode node; 1809 1810 new_sbmax = sb_max; 1811 node = *rnode; 1812 node.sysctl_data = &new_sbmax; 1813 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1814 if (error || newp == NULL) 1815 return (error); 1816 1817 error = sb_max_set(new_sbmax); 1818 1819 return (error); 1820 } 1821 1822 /* 1823 * sysctl helper routine for kern.urandom node. picks a random number 1824 * for you. 1825 */ 1826 static int 1827 sysctl_kern_urnd(SYSCTLFN_ARGS) 1828 { 1829 #if NRND > 0 1830 int v; 1831 1832 if (rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY) == sizeof(v)) { 1833 struct sysctlnode node = *rnode; 1834 node.sysctl_data = &v; 1835 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1836 } 1837 else 1838 return (EIO); /*XXX*/ 1839 #else 1840 return (EOPNOTSUPP); 1841 #endif 1842 } 1843 1844 /* 1845 * sysctl helper routine to do kern.lwp.* work. 1846 */ 1847 static int 1848 sysctl_kern_lwp(SYSCTLFN_ARGS) 1849 { 1850 struct kinfo_lwp klwp; 1851 struct proc *p; 1852 struct lwp *l2; 1853 char *where, *dp; 1854 int pid, elem_size, elem_count; 1855 int buflen, needed, error; 1856 1857 if (namelen == 1 && name[0] == CTL_QUERY) 1858 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1859 1860 dp = where = oldp; 1861 buflen = where != NULL ? *oldlenp : 0; 1862 error = needed = 0; 1863 1864 if (newp != NULL || namelen != 3) 1865 return (EINVAL); 1866 pid = name[0]; 1867 elem_size = name[1]; 1868 elem_count = name[2]; 1869 1870 p = pfind(pid); 1871 if (p == NULL) 1872 return (ESRCH); 1873 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1874 if (buflen >= elem_size && elem_count > 0) { 1875 fill_lwp(l2, &klwp); 1876 /* 1877 * Copy out elem_size, but not larger than 1878 * the size of a struct kinfo_proc2. 1879 */ 1880 error = copyout(&klwp, dp, 1881 min(sizeof(klwp), elem_size)); 1882 if (error) 1883 goto cleanup; 1884 dp += elem_size; 1885 buflen -= elem_size; 1886 elem_count--; 1887 } 1888 needed += elem_size; 1889 } 1890 1891 if (where != NULL) { 1892 *oldlenp = dp - where; 1893 if (needed > *oldlenp) 1894 return (ENOMEM); 1895 } else { 1896 needed += KERN_LWPSLOP; 1897 *oldlenp = needed; 1898 } 1899 return (0); 1900 cleanup: 1901 return (error); 1902 } 1903 1904 /* 1905 * sysctl helper routine for kern.forkfsleep node. ensures that the 1906 * given value is not too large or two small, and is at least one 1907 * timer tick if not zero. 1908 */ 1909 static int 1910 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1911 { 1912 /* userland sees value in ms, internally is in ticks */ 1913 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1914 int error, timo, lsleep; 1915 struct sysctlnode node; 1916 1917 lsleep = forkfsleep * 1000 / hz; 1918 node = *rnode; 1919 node.sysctl_data = &lsleep; 1920 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1921 if (error || newp == NULL) 1922 return (error); 1923 1924 /* refuse negative values, and overly 'long time' */ 1925 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1926 return (EINVAL); 1927 1928 timo = mstohz(lsleep); 1929 1930 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1931 if (lsleep != 0 && timo == 0) 1932 forkfsleep = 1; 1933 else 1934 forkfsleep = timo; 1935 1936 return (0); 1937 } 1938 1939 /* 1940 * sysctl helper routine for kern.root_partition 1941 */ 1942 static int 1943 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1944 { 1945 int rootpart = DISKPART(rootdev); 1946 struct sysctlnode node = *rnode; 1947 1948 node.sysctl_data = &rootpart; 1949 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1950 } 1951 1952 /* 1953 * sysctl helper function for kern.drivers 1954 */ 1955 static int 1956 sysctl_kern_drivers(SYSCTLFN_ARGS) 1957 { 1958 int error; 1959 size_t buflen; 1960 struct kinfo_drivers kd; 1961 char *start, *where; 1962 const char *dname; 1963 int i; 1964 extern struct devsw_conv *devsw_conv; 1965 extern int max_devsw_convs; 1966 1967 if (newp != NULL || namelen != 0) 1968 return (EINVAL); 1969 1970 start = where = oldp; 1971 buflen = *oldlenp; 1972 if (where == NULL) { 1973 *oldlenp = max_devsw_convs * sizeof kd; 1974 return 0; 1975 } 1976 1977 /* 1978 * An array of kinfo_drivers structures 1979 */ 1980 error = 0; 1981 for (i = 0; i < max_devsw_convs; i++) { 1982 dname = devsw_conv[i].d_name; 1983 if (dname == NULL) 1984 continue; 1985 if (buflen < sizeof kd) { 1986 error = ENOMEM; 1987 break; 1988 } 1989 memset(&kd, 0, sizeof(kd)); 1990 kd.d_bmajor = devsw_conv[i].d_bmajor; 1991 kd.d_cmajor = devsw_conv[i].d_cmajor; 1992 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1993 error = copyout(&kd, where, sizeof kd); 1994 if (error != 0) 1995 break; 1996 buflen -= sizeof kd; 1997 where += sizeof kd; 1998 } 1999 *oldlenp = where - start; 2000 return error; 2001 } 2002 2003 /* 2004 * sysctl helper function for kern.file2 2005 */ 2006 static int 2007 sysctl_kern_file2(SYSCTLFN_ARGS) 2008 { 2009 struct proc *p; 2010 struct file *fp; 2011 struct filedesc *fd; 2012 struct kinfo_file kf; 2013 char *dp; 2014 u_int i, op; 2015 size_t len, needed, elem_size, out_size; 2016 int error, arg, elem_count; 2017 2018 if (namelen == 1 && name[0] == CTL_QUERY) 2019 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2020 2021 if (namelen != 4) 2022 return (EINVAL); 2023 2024 error = 0; 2025 dp = oldp; 2026 len = (oldp != NULL) ? *oldlenp : 0; 2027 op = name[0]; 2028 arg = name[1]; 2029 elem_size = name[2]; 2030 elem_count = name[3]; 2031 out_size = MIN(sizeof(kf), elem_size); 2032 needed = 0; 2033 2034 if (elem_size < 1 || elem_count < 0) 2035 return (EINVAL); 2036 2037 switch (op) { 2038 case KERN_FILE_BYFILE: 2039 /* 2040 * doesn't use arg so it must be zero 2041 */ 2042 if (arg != 0) 2043 return (EINVAL); 2044 LIST_FOREACH(fp, &filehead, f_list) { 2045 if (kauth_authorize_generic(l->l_cred, 2046 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) 2047 continue; 2048 if (len >= elem_size && elem_count > 0) { 2049 fill_file(&kf, fp, NULL, 0); 2050 error = copyout(&kf, dp, out_size); 2051 if (error) 2052 break; 2053 dp += elem_size; 2054 len -= elem_size; 2055 } 2056 if (elem_count > 0) { 2057 needed += elem_size; 2058 if (elem_count != INT_MAX) 2059 elem_count--; 2060 } 2061 } 2062 break; 2063 case KERN_FILE_BYPID: 2064 if (arg < -1) 2065 /* -1 means all processes */ 2066 return (EINVAL); 2067 proclist_lock_read(); 2068 PROCLIST_FOREACH(p, &allproc) { 2069 if (p->p_stat == SIDL) 2070 /* skip embryonic processes */ 2071 continue; 2072 if (kauth_authorize_process(l->l_cred, 2073 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2074 continue; 2075 if (arg > 0 && p->p_pid != arg) 2076 /* pick only the one we want */ 2077 /* XXX want 0 to mean "kernel files" */ 2078 continue; 2079 fd = p->p_fd; 2080 for (i = 0; i < fd->fd_nfiles; i++) { 2081 fp = fd->fd_ofiles[i]; 2082 if (fp == NULL || !FILE_IS_USABLE(fp)) 2083 continue; 2084 if (len >= elem_size && elem_count > 0) { 2085 fill_file(&kf, fd->fd_ofiles[i], 2086 p, i); 2087 error = copyout(&kf, dp, out_size); 2088 if (error) 2089 break; 2090 dp += elem_size; 2091 len -= elem_size; 2092 } 2093 if (elem_count > 0) { 2094 needed += elem_size; 2095 if (elem_count != INT_MAX) 2096 elem_count--; 2097 } 2098 } 2099 } 2100 proclist_unlock_read(); 2101 break; 2102 default: 2103 return (EINVAL); 2104 } 2105 2106 if (oldp == NULL) 2107 needed += KERN_FILESLOP * elem_size; 2108 *oldlenp = needed; 2109 2110 return (error); 2111 } 2112 2113 static void 2114 fill_file(struct kinfo_file *kp, const struct file *fp, struct proc *p, int i) 2115 { 2116 2117 memset(kp, 0, sizeof(*kp)); 2118 2119 kp->ki_fileaddr = PTRTOUINT64(fp); 2120 kp->ki_flag = fp->f_flag; 2121 kp->ki_iflags = fp->f_iflags; 2122 kp->ki_ftype = fp->f_type; 2123 kp->ki_count = fp->f_count; 2124 kp->ki_msgcount = fp->f_msgcount; 2125 kp->ki_usecount = fp->f_usecount; 2126 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2127 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2128 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2129 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2130 kp->ki_foffset = fp->f_offset; 2131 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2132 2133 /* vnode information to glue this file to something */ 2134 if (fp->f_type == DTYPE_VNODE) { 2135 struct vnode *vp = (struct vnode *)fp->f_data; 2136 2137 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2138 kp->ki_vsize = vp->v_size; 2139 kp->ki_vtype = vp->v_type; 2140 kp->ki_vtag = vp->v_tag; 2141 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2142 } 2143 2144 /* process information when retrieved via KERN_FILE_BYPID */ 2145 if (p) { 2146 kp->ki_pid = p->p_pid; 2147 kp->ki_fd = i; 2148 kp->ki_ofileflags = p->p_fd->fd_ofileflags[i]; 2149 } 2150 } 2151 2152 static int 2153 sysctl_doeproc(SYSCTLFN_ARGS) 2154 { 2155 struct eproc *eproc; 2156 struct kinfo_proc2 *kproc2; 2157 struct kinfo_proc *dp; 2158 struct proc *p; 2159 const struct proclist_desc *pd; 2160 char *where, *dp2; 2161 int type, op, arg; 2162 u_int elem_size, elem_count; 2163 size_t buflen, needed; 2164 int error; 2165 2166 if (namelen == 1 && name[0] == CTL_QUERY) 2167 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2168 2169 dp = oldp; 2170 dp2 = where = oldp; 2171 buflen = where != NULL ? *oldlenp : 0; 2172 error = 0; 2173 needed = 0; 2174 type = rnode->sysctl_num; 2175 2176 if (type == KERN_PROC) { 2177 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2178 return (EINVAL); 2179 op = name[0]; 2180 if (op != KERN_PROC_ALL) 2181 arg = name[1]; 2182 else 2183 arg = 0; /* Quell compiler warning */ 2184 elem_size = elem_count = 0; /* Ditto */ 2185 } else { 2186 if (namelen != 4) 2187 return (EINVAL); 2188 op = name[0]; 2189 arg = name[1]; 2190 elem_size = name[2]; 2191 elem_count = name[3]; 2192 } 2193 2194 if (type == KERN_PROC) { 2195 eproc = malloc(sizeof(*eproc), M_TEMP, M_WAITOK); 2196 kproc2 = NULL; 2197 } else { 2198 eproc = NULL; 2199 kproc2 = malloc(sizeof(*kproc2), M_TEMP, M_WAITOK); 2200 } 2201 proclist_lock_read(); 2202 2203 pd = proclists; 2204 again: 2205 PROCLIST_FOREACH(p, pd->pd_list) { 2206 /* 2207 * Skip embryonic processes. 2208 */ 2209 if (p->p_stat == SIDL) 2210 continue; 2211 2212 if (kauth_authorize_process(l->l_cred, 2213 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL) != 0) 2214 continue; 2215 2216 /* 2217 * TODO - make more efficient (see notes below). 2218 * do by session. 2219 */ 2220 switch (op) { 2221 2222 case KERN_PROC_PID: 2223 /* could do this with just a lookup */ 2224 if (p->p_pid != (pid_t)arg) 2225 continue; 2226 break; 2227 2228 case KERN_PROC_PGRP: 2229 /* could do this by traversing pgrp */ 2230 if (p->p_pgrp->pg_id != (pid_t)arg) 2231 continue; 2232 break; 2233 2234 case KERN_PROC_SESSION: 2235 if (p->p_session->s_sid != (pid_t)arg) 2236 continue; 2237 break; 2238 2239 case KERN_PROC_TTY: 2240 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2241 if ((p->p_flag & P_CONTROLT) == 0 || 2242 p->p_session->s_ttyp == NULL || 2243 p->p_session->s_ttyvp != NULL) 2244 continue; 2245 } else if ((p->p_flag & P_CONTROLT) == 0 || 2246 p->p_session->s_ttyp == NULL) { 2247 if ((dev_t)arg != KERN_PROC_TTY_NODEV) 2248 continue; 2249 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) 2250 continue; 2251 break; 2252 2253 case KERN_PROC_UID: 2254 if (kauth_cred_geteuid(p->p_cred) != (uid_t)arg) 2255 continue; 2256 break; 2257 2258 case KERN_PROC_RUID: 2259 if (kauth_cred_getuid(p->p_cred) != (uid_t)arg) 2260 continue; 2261 break; 2262 2263 case KERN_PROC_GID: 2264 if (kauth_cred_getegid(p->p_cred) != (uid_t)arg) 2265 continue; 2266 break; 2267 2268 case KERN_PROC_RGID: 2269 if (kauth_cred_getgid(p->p_cred) != (uid_t)arg) 2270 continue; 2271 break; 2272 2273 case KERN_PROC_ALL: 2274 /* allow everything */ 2275 break; 2276 2277 default: 2278 error = EINVAL; 2279 goto cleanup; 2280 } 2281 if (type == KERN_PROC) { 2282 if (buflen >= sizeof(struct kinfo_proc)) { 2283 fill_eproc(p, eproc); 2284 error = copyout(p, &dp->kp_proc, 2285 sizeof(struct proc)); 2286 if (error) 2287 goto cleanup; 2288 error = copyout(eproc, &dp->kp_eproc, 2289 sizeof(*eproc)); 2290 if (error) 2291 goto cleanup; 2292 dp++; 2293 buflen -= sizeof(struct kinfo_proc); 2294 } 2295 needed += sizeof(struct kinfo_proc); 2296 } else { /* KERN_PROC2 */ 2297 if (buflen >= elem_size && elem_count > 0) { 2298 fill_kproc2(p, kproc2); 2299 /* 2300 * Copy out elem_size, but not larger than 2301 * the size of a struct kinfo_proc2. 2302 */ 2303 error = copyout(kproc2, dp2, 2304 min(sizeof(*kproc2), elem_size)); 2305 if (error) 2306 goto cleanup; 2307 dp2 += elem_size; 2308 buflen -= elem_size; 2309 elem_count--; 2310 } 2311 needed += elem_size; 2312 } 2313 } 2314 pd++; 2315 if (pd->pd_list != NULL) 2316 goto again; 2317 proclist_unlock_read(); 2318 2319 if (where != NULL) { 2320 if (type == KERN_PROC) 2321 *oldlenp = (char *)dp - where; 2322 else 2323 *oldlenp = dp2 - where; 2324 if (needed > *oldlenp) { 2325 error = ENOMEM; 2326 goto out; 2327 } 2328 } else { 2329 needed += KERN_PROCSLOP; 2330 *oldlenp = needed; 2331 } 2332 if (kproc2) 2333 free(kproc2, M_TEMP); 2334 if (eproc) 2335 free(eproc, M_TEMP); 2336 return 0; 2337 cleanup: 2338 proclist_unlock_read(); 2339 out: 2340 if (kproc2) 2341 free(kproc2, M_TEMP); 2342 if (eproc) 2343 free(eproc, M_TEMP); 2344 return error; 2345 } 2346 2347 /* 2348 * sysctl helper routine for kern.proc_args pseudo-subtree. 2349 */ 2350 static int 2351 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2352 { 2353 struct ps_strings pss; 2354 struct proc *p; 2355 size_t len, upper_bound, xlen, i; 2356 struct uio auio; 2357 struct iovec aiov; 2358 vaddr_t argv; 2359 pid_t pid; 2360 int nargv, type, error; 2361 char *arg; 2362 char *tmp; 2363 struct vmspace *vmspace; 2364 vaddr_t psstr_addr; 2365 vaddr_t offsetn; 2366 vaddr_t offsetv; 2367 2368 if (namelen == 1 && name[0] == CTL_QUERY) 2369 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2370 2371 if (newp != NULL || namelen != 2) 2372 return (EINVAL); 2373 pid = name[0]; 2374 type = name[1]; 2375 2376 switch (type) { 2377 case KERN_PROC_ARGV: 2378 case KERN_PROC_NARGV: 2379 case KERN_PROC_ENV: 2380 case KERN_PROC_NENV: 2381 /* ok */ 2382 break; 2383 default: 2384 return (EINVAL); 2385 } 2386 2387 proclist_lock_read(); 2388 2389 /* check pid */ 2390 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2391 error = EINVAL; 2392 goto out_locked; 2393 } 2394 2395 error = kauth_authorize_process(l->l_cred, 2396 KAUTH_PROCESS_CANSEE, p, NULL, NULL, NULL); 2397 if (error) { 2398 goto out_locked; 2399 } 2400 2401 /* only root or same user change look at the environment */ 2402 if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) { 2403 if (kauth_cred_geteuid(l->l_cred) != 0) { 2404 if (kauth_cred_getuid(l->l_cred) != 2405 kauth_cred_getuid(p->p_cred) || 2406 kauth_cred_getuid(l->l_cred) != 2407 kauth_cred_getsvuid(p->p_cred)) { 2408 error = EPERM; 2409 goto out_locked; 2410 } 2411 } 2412 } 2413 2414 if (oldp == NULL) { 2415 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2416 *oldlenp = sizeof (int); 2417 else 2418 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2419 error = 0; 2420 goto out_locked; 2421 } 2422 2423 /* 2424 * Zombies don't have a stack, so we can't read their psstrings. 2425 * System processes also don't have a user stack. 2426 */ 2427 if (P_ZOMBIE(p) || (p->p_flag & P_SYSTEM) != 0) { 2428 error = EINVAL; 2429 goto out_locked; 2430 } 2431 2432 /* 2433 * Lock the process down in memory. 2434 */ 2435 /* XXXCDC: how should locking work here? */ 2436 if ((p->p_flag & P_WEXIT) || (p->p_vmspace->vm_refcnt < 1)) { 2437 error = EFAULT; 2438 goto out_locked; 2439 } 2440 2441 psstr_addr = (vaddr_t)p->p_psstr; 2442 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2443 offsetn = p->p_psnargv; 2444 offsetv = p->p_psargv; 2445 } else { 2446 offsetn = p->p_psnenv; 2447 offsetv = p->p_psenv; 2448 } 2449 vmspace = p->p_vmspace; 2450 vmspace->vm_refcnt++; /* XXX */ 2451 2452 proclist_unlock_read(); 2453 2454 /* 2455 * Allocate a temporary buffer to hold the arguments. 2456 */ 2457 arg = malloc(PAGE_SIZE, M_TEMP, M_WAITOK); 2458 2459 /* 2460 * Read in the ps_strings structure. 2461 */ 2462 aiov.iov_base = &pss; 2463 aiov.iov_len = sizeof(pss); 2464 auio.uio_iov = &aiov; 2465 auio.uio_iovcnt = 1; 2466 auio.uio_offset = psstr_addr; 2467 auio.uio_resid = sizeof(pss); 2468 auio.uio_rw = UIO_READ; 2469 UIO_SETUP_SYSSPACE(&auio); 2470 error = uvm_io(&vmspace->vm_map, &auio); 2471 if (error) 2472 goto done; 2473 2474 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2475 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2476 error = copyout(&nargv, oldp, sizeof(nargv)); 2477 *oldlenp = sizeof(nargv); 2478 goto done; 2479 } 2480 /* 2481 * Now read the address of the argument vector. 2482 */ 2483 switch (type) { 2484 case KERN_PROC_ARGV: 2485 /* FALLTHROUGH */ 2486 case KERN_PROC_ENV: 2487 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2488 break; 2489 default: 2490 return (EINVAL); 2491 } 2492 2493 auio.uio_offset = (off_t)(unsigned long)tmp; 2494 aiov.iov_base = &argv; 2495 aiov.iov_len = sizeof(argv); 2496 auio.uio_iov = &aiov; 2497 auio.uio_iovcnt = 1; 2498 auio.uio_resid = sizeof(argv); 2499 auio.uio_rw = UIO_READ; 2500 UIO_SETUP_SYSSPACE(&auio); 2501 error = uvm_io(&vmspace->vm_map, &auio); 2502 if (error) 2503 goto done; 2504 2505 #ifdef COMPAT_NETBSD32 2506 /* 2507 * Here we get a 32 bit pointer that has to be converted, 2508 * otherwise we get garbage in the 32 higher bits 2509 */ 2510 if (p->p_flag & P_32) 2511 argv = (vaddr_t)NETBSD32PTR64(argv); 2512 #endif 2513 2514 /* 2515 * Now copy in the actual argument vector, one page at a time, 2516 * since we don't know how long the vector is (though, we do 2517 * know how many NUL-terminated strings are in the vector). 2518 */ 2519 len = 0; 2520 upper_bound = *oldlenp; 2521 for (; nargv != 0 && len < upper_bound; len += xlen) { 2522 aiov.iov_base = arg; 2523 aiov.iov_len = PAGE_SIZE; 2524 auio.uio_iov = &aiov; 2525 auio.uio_iovcnt = 1; 2526 auio.uio_offset = argv + len; 2527 xlen = PAGE_SIZE - ((argv + len) & PAGE_MASK); 2528 auio.uio_resid = xlen; 2529 auio.uio_rw = UIO_READ; 2530 UIO_SETUP_SYSSPACE(&auio); 2531 error = uvm_io(&vmspace->vm_map, &auio); 2532 if (error) 2533 goto done; 2534 2535 for (i = 0; i < xlen && nargv != 0; i++) { 2536 if (arg[i] == '\0') 2537 nargv--; /* one full string */ 2538 } 2539 2540 /* 2541 * Make sure we don't copyout past the end of the user's 2542 * buffer. 2543 */ 2544 if (len + i > upper_bound) 2545 i = upper_bound - len; 2546 2547 error = copyout(arg, (char *)oldp + len, i); 2548 if (error) 2549 break; 2550 2551 if (nargv == 0) { 2552 len += i; 2553 break; 2554 } 2555 } 2556 *oldlenp = len; 2557 2558 done: 2559 uvmspace_free(vmspace); 2560 2561 free(arg, M_TEMP); 2562 return error; 2563 2564 out_locked: 2565 proclist_unlock_read(); 2566 return error; 2567 } 2568 2569 /* 2570 * Sysctl helper routine for Verified Exec. 2571 */ 2572 #if NVERIEXEC > 0 2573 static int 2574 sysctl_kern_veriexec(SYSCTLFN_ARGS) 2575 { 2576 int newval, error; 2577 int *var = NULL, raise_only = 0; 2578 struct sysctlnode node; 2579 2580 node = *rnode; 2581 2582 switch (rnode->sysctl_num) { 2583 case VERIEXEC_STRICT: 2584 raise_only = 1; 2585 var = &veriexec_strict; 2586 break; 2587 case VERIEXEC_ALGORITHMS: 2588 node.sysctl_data = veriexec_fp_names; 2589 node.sysctl_size = strlen(veriexec_fp_names) + 1; 2590 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2591 default: 2592 return (EINVAL); 2593 } 2594 2595 newval = *var; 2596 2597 node.sysctl_data = &newval; 2598 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2599 if (error || newp == NULL) { 2600 return (error); 2601 } 2602 2603 if (raise_only && (newval < *var)) 2604 return (EPERM); 2605 2606 *var = newval; 2607 2608 return (error); 2609 } 2610 #endif /* NVERIEXEC > 0 */ 2611 2612 static int 2613 sysctl_security_setidcore(SYSCTLFN_ARGS) 2614 { 2615 int newsize, error; 2616 struct sysctlnode node; 2617 2618 node = *rnode; 2619 node.sysctl_data = &newsize; 2620 newsize = *(int *)rnode->sysctl_data; 2621 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2622 if (error || newp == NULL) 2623 return error; 2624 2625 if (securelevel > 0) 2626 return (EPERM); 2627 2628 *(int *)rnode->sysctl_data = newsize; 2629 2630 return 0; 2631 } 2632 2633 static int 2634 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2635 { 2636 int error; 2637 char *newsetidcorename; 2638 struct sysctlnode node; 2639 2640 newsetidcorename = PNBUF_GET(); 2641 node = *rnode; 2642 node.sysctl_data = newsetidcorename; 2643 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2644 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2645 if (error || newp == NULL) { 2646 goto out; 2647 } 2648 if (securelevel > 0) { 2649 error = EPERM; 2650 goto out; 2651 } 2652 if (strlen(newsetidcorename) == 0) { 2653 error = EINVAL; 2654 goto out; 2655 } 2656 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2657 out: 2658 PNBUF_PUT(newsetidcorename); 2659 return error; 2660 } 2661 2662 /* 2663 * sysctl helper routine for kern.cp_id node. maps cpus to their 2664 * cpuids. 2665 */ 2666 static int 2667 sysctl_kern_cpid(SYSCTLFN_ARGS) 2668 { 2669 struct sysctlnode node = *rnode; 2670 2671 #ifndef MULTIPROCESSOR 2672 uint64_t id; 2673 2674 if (namelen == 1) { 2675 if (name[0] != 0) 2676 return (ENOENT); 2677 /* 2678 * you're allowed to ask for the zero'th processor 2679 */ 2680 name++; 2681 namelen--; 2682 } 2683 node.sysctl_data = &id; 2684 node.sysctl_size = sizeof(id); 2685 id = cpu_number(); 2686 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2687 2688 #else /* MULTIPROCESSOR */ 2689 uint64_t *cp_id = NULL; 2690 int error, n = sysctl_ncpus(); 2691 struct cpu_info *ci; 2692 CPU_INFO_ITERATOR cii; 2693 2694 /* 2695 * here you may either retrieve a single cpu id or the whole 2696 * set. the size you get back when probing depends on what 2697 * you ask for. 2698 */ 2699 switch (namelen) { 2700 case 0: 2701 node.sysctl_size = n * sizeof(uint64_t); 2702 n = -2; /* ALL */ 2703 break; 2704 case 1: 2705 if (name[0] < 0 || name[0] >= n) 2706 return (ENOENT); /* ENOSUCHPROCESSOR */ 2707 node.sysctl_size = sizeof(uint64_t); 2708 n = name[0]; 2709 /* 2710 * adjust these so that sysctl_lookup() will be happy 2711 */ 2712 name++; 2713 namelen--; 2714 break; 2715 default: 2716 return (EINVAL); 2717 } 2718 2719 cp_id = malloc(node.sysctl_size, M_TEMP, M_WAITOK|M_CANFAIL); 2720 if (cp_id == NULL) 2721 return (ENOMEM); 2722 node.sysctl_data = cp_id; 2723 memset(cp_id, 0, node.sysctl_size); 2724 2725 for (CPU_INFO_FOREACH(cii, ci)) { 2726 if (n <= 0) 2727 cp_id[0] = ci->ci_cpuid; 2728 /* 2729 * if a specific processor was requested and we just 2730 * did it, we're done here 2731 */ 2732 if (n == 0) 2733 break; 2734 /* 2735 * if doing "all", skip to next cp_id slot for next processor 2736 */ 2737 if (n == -2) 2738 cp_id++; 2739 /* 2740 * if we're doing a specific processor, we're one 2741 * processor closer 2742 */ 2743 if (n > 0) 2744 n--; 2745 } 2746 2747 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2748 free(node.sysctl_data, M_TEMP); 2749 return (error); 2750 2751 #endif /* MULTIPROCESSOR */ 2752 } 2753 2754 /* 2755 * sysctl helper routine for hw.usermem and hw.usermem64. values are 2756 * calculate on the fly taking into account integer overflow and the 2757 * current wired count. 2758 */ 2759 static int 2760 sysctl_hw_usermem(SYSCTLFN_ARGS) 2761 { 2762 u_int ui; 2763 u_quad_t uq; 2764 struct sysctlnode node; 2765 2766 node = *rnode; 2767 switch (rnode->sysctl_num) { 2768 case HW_USERMEM: 2769 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2770 ui = UINT_MAX; 2771 else 2772 ui *= PAGE_SIZE; 2773 node.sysctl_data = &ui; 2774 break; 2775 case HW_USERMEM64: 2776 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2777 node.sysctl_data = &uq; 2778 break; 2779 default: 2780 return (EINVAL); 2781 } 2782 2783 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2784 } 2785 2786 /* 2787 * sysctl helper routine for kern.cnmagic node. pulls the old value 2788 * out, encoded, and stuffs the new value in for decoding. 2789 */ 2790 static int 2791 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2792 { 2793 char magic[CNS_LEN]; 2794 int error; 2795 struct sysctlnode node; 2796 2797 if (oldp) 2798 cn_get_magic(magic, CNS_LEN); 2799 node = *rnode; 2800 node.sysctl_data = &magic[0]; 2801 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2802 if (error || newp == NULL) 2803 return (error); 2804 2805 return (cn_set_magic(magic)); 2806 } 2807 2808 static int 2809 sysctl_hw_ncpu(SYSCTLFN_ARGS) 2810 { 2811 int ncpu; 2812 struct sysctlnode node; 2813 2814 ncpu = sysctl_ncpus(); 2815 node = *rnode; 2816 node.sysctl_data = &ncpu; 2817 2818 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2819 } 2820 2821 2822 /* 2823 * ******************************************************************** 2824 * section 3: public helper routines that are used for more than one 2825 * node 2826 * ******************************************************************** 2827 */ 2828 2829 /* 2830 * sysctl helper routine for the kern.root_device node and some ports' 2831 * machdep.root_device nodes. 2832 */ 2833 int 2834 sysctl_root_device(SYSCTLFN_ARGS) 2835 { 2836 struct sysctlnode node; 2837 2838 node = *rnode; 2839 node.sysctl_data = root_device->dv_xname; 2840 node.sysctl_size = strlen(root_device->dv_xname) + 1; 2841 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2842 } 2843 2844 /* 2845 * sysctl helper routine for kern.consdev, dependent on the current 2846 * state of the console. also used for machdep.console_device on some 2847 * ports. 2848 */ 2849 int 2850 sysctl_consdev(SYSCTLFN_ARGS) 2851 { 2852 dev_t consdev; 2853 struct sysctlnode node; 2854 2855 if (cn_tab != NULL) 2856 consdev = cn_tab->cn_dev; 2857 else 2858 consdev = NODEV; 2859 node = *rnode; 2860 node.sysctl_data = &consdev; 2861 node.sysctl_size = sizeof(consdev); 2862 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2863 } 2864 2865 /* 2866 * ******************************************************************** 2867 * section 4: support for some helpers 2868 * ******************************************************************** 2869 */ 2870 2871 /* 2872 * Fill in a kinfo_proc2 structure for the specified process. 2873 */ 2874 static void 2875 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki) 2876 { 2877 struct tty *tp; 2878 struct lwp *l; 2879 struct timeval ut, st; 2880 2881 memset(ki, 0, sizeof(*ki)); 2882 2883 ki->p_paddr = PTRTOUINT64(p); 2884 ki->p_fd = PTRTOUINT64(p->p_fd); 2885 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2886 ki->p_stats = PTRTOUINT64(p->p_stats); 2887 ki->p_limit = PTRTOUINT64(p->p_limit); 2888 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2889 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2890 ki->p_sess = PTRTOUINT64(p->p_session); 2891 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2892 ki->p_ru = PTRTOUINT64(p->p_ru); 2893 2894 ki->p_eflag = 0; 2895 ki->p_exitsig = p->p_exitsig; 2896 ki->p_flag = p->p_flag; 2897 2898 ki->p_pid = p->p_pid; 2899 if (p->p_pptr) 2900 ki->p_ppid = p->p_pptr->p_pid; 2901 else 2902 ki->p_ppid = 0; 2903 ki->p_sid = p->p_session->s_sid; 2904 ki->p__pgid = p->p_pgrp->pg_id; 2905 2906 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2907 2908 ki->p_uid = kauth_cred_geteuid(p->p_cred); 2909 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2910 ki->p_gid = kauth_cred_getegid(p->p_cred); 2911 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2912 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2913 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2914 2915 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2916 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2917 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0]))); 2918 2919 ki->p_jobc = p->p_pgrp->pg_jobc; 2920 if ((p->p_flag & P_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2921 ki->p_tdev = tp->t_dev; 2922 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2923 ki->p_tsess = PTRTOUINT64(tp->t_session); 2924 } else { 2925 ki->p_tdev = NODEV; 2926 } 2927 2928 ki->p_estcpu = p->p_estcpu; 2929 ki->p_rtime_sec = p->p_rtime.tv_sec; 2930 ki->p_rtime_usec = p->p_rtime.tv_usec; 2931 ki->p_cpticks = p->p_cpticks; 2932 ki->p_pctcpu = p->p_pctcpu; 2933 2934 ki->p_uticks = p->p_uticks; 2935 ki->p_sticks = p->p_sticks; 2936 ki->p_iticks = p->p_iticks; 2937 2938 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2939 ki->p_traceflag = p->p_traceflag; 2940 2941 2942 memcpy(&ki->p_siglist, &p->p_sigctx.ps_siglist, sizeof(ki_sigset_t)); 2943 memcpy(&ki->p_sigmask, &p->p_sigctx.ps_sigmask, sizeof(ki_sigset_t)); 2944 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2945 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2946 2947 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2948 ki->p_realstat = p->p_stat; 2949 ki->p_nice = p->p_nice; 2950 2951 ki->p_xstat = p->p_xstat; 2952 ki->p_acflag = p->p_acflag; 2953 2954 strncpy(ki->p_comm, p->p_comm, 2955 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2956 2957 strncpy(ki->p_login, p->p_session->s_login, 2958 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2959 2960 ki->p_nlwps = p->p_nlwps; 2961 ki->p_nrlwps = p->p_nrlwps; 2962 ki->p_realflag = p->p_flag; 2963 2964 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 2965 ki->p_vm_rssize = 0; 2966 ki->p_vm_tsize = 0; 2967 ki->p_vm_dsize = 0; 2968 ki->p_vm_ssize = 0; 2969 l = NULL; 2970 } else { 2971 struct vmspace *vm = p->p_vmspace; 2972 2973 ki->p_vm_rssize = vm_resident_count(vm); 2974 ki->p_vm_tsize = vm->vm_tsize; 2975 ki->p_vm_dsize = vm->vm_dsize; 2976 ki->p_vm_ssize = vm->vm_ssize; 2977 2978 /* Pick a "representative" LWP */ 2979 l = proc_representative_lwp(p); 2980 ki->p_forw = PTRTOUINT64(l->l_forw); 2981 ki->p_back = PTRTOUINT64(l->l_back); 2982 ki->p_addr = PTRTOUINT64(l->l_addr); 2983 ki->p_stat = l->l_stat; 2984 ki->p_flag |= l->l_flag & P_SHARED; 2985 ki->p_swtime = l->l_swtime; 2986 ki->p_slptime = l->l_slptime; 2987 if (l->l_stat == LSONPROC) { 2988 KDASSERT(l->l_cpu != NULL); 2989 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2990 } else 2991 ki->p_schedflags = 0; 2992 ki->p_holdcnt = l->l_holdcnt; 2993 ki->p_priority = l->l_priority; 2994 ki->p_usrpri = l->l_usrpri; 2995 if (l->l_wmesg) 2996 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2997 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2998 2999 } 3000 3001 if (p->p_session->s_ttyvp) 3002 ki->p_eflag |= EPROC_CTTY; 3003 if (SESS_LEADER(p)) 3004 ki->p_eflag |= EPROC_SLEADER; 3005 3006 /* XXX Is this double check necessary? */ 3007 if (P_ZOMBIE(p)) { 3008 ki->p_uvalid = 0; 3009 } else { 3010 ki->p_uvalid = 1; 3011 3012 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3013 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3014 3015 calcru(p, &ut, &st, 0); 3016 ki->p_uutime_sec = ut.tv_sec; 3017 ki->p_uutime_usec = ut.tv_usec; 3018 ki->p_ustime_sec = st.tv_sec; 3019 ki->p_ustime_usec = st.tv_usec; 3020 3021 ki->p_uru_maxrss = p->p_stats->p_ru.ru_maxrss; 3022 ki->p_uru_ixrss = p->p_stats->p_ru.ru_ixrss; 3023 ki->p_uru_idrss = p->p_stats->p_ru.ru_idrss; 3024 ki->p_uru_isrss = p->p_stats->p_ru.ru_isrss; 3025 ki->p_uru_minflt = p->p_stats->p_ru.ru_minflt; 3026 ki->p_uru_majflt = p->p_stats->p_ru.ru_majflt; 3027 ki->p_uru_nswap = p->p_stats->p_ru.ru_nswap; 3028 ki->p_uru_inblock = p->p_stats->p_ru.ru_inblock; 3029 ki->p_uru_oublock = p->p_stats->p_ru.ru_oublock; 3030 ki->p_uru_msgsnd = p->p_stats->p_ru.ru_msgsnd; 3031 ki->p_uru_msgrcv = p->p_stats->p_ru.ru_msgrcv; 3032 ki->p_uru_nsignals = p->p_stats->p_ru.ru_nsignals; 3033 ki->p_uru_nvcsw = p->p_stats->p_ru.ru_nvcsw; 3034 ki->p_uru_nivcsw = p->p_stats->p_ru.ru_nivcsw; 3035 3036 timeradd(&p->p_stats->p_cru.ru_utime, 3037 &p->p_stats->p_cru.ru_stime, &ut); 3038 ki->p_uctime_sec = ut.tv_sec; 3039 ki->p_uctime_usec = ut.tv_usec; 3040 } 3041 #ifdef MULTIPROCESSOR 3042 if (l && l->l_cpu != NULL) 3043 ki->p_cpuid = l->l_cpu->ci_cpuid; 3044 else 3045 #endif 3046 ki->p_cpuid = KI_NOCPU; 3047 } 3048 3049 /* 3050 * Fill in a kinfo_lwp structure for the specified lwp. 3051 */ 3052 static void 3053 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3054 { 3055 3056 kl->l_forw = PTRTOUINT64(l->l_forw); 3057 kl->l_back = PTRTOUINT64(l->l_back); 3058 kl->l_laddr = PTRTOUINT64(l); 3059 kl->l_addr = PTRTOUINT64(l->l_addr); 3060 kl->l_stat = l->l_stat; 3061 kl->l_lid = l->l_lid; 3062 kl->l_flag = l->l_flag; 3063 3064 kl->l_swtime = l->l_swtime; 3065 kl->l_slptime = l->l_slptime; 3066 if (l->l_stat == LSONPROC) { 3067 KDASSERT(l->l_cpu != NULL); 3068 kl->l_schedflags = l->l_cpu->ci_schedstate.spc_flags; 3069 } else 3070 kl->l_schedflags = 0; 3071 kl->l_holdcnt = l->l_holdcnt; 3072 kl->l_priority = l->l_priority; 3073 kl->l_usrpri = l->l_usrpri; 3074 if (l->l_wmesg) 3075 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3076 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3077 #ifdef MULTIPROCESSOR 3078 if (l->l_cpu != NULL) 3079 kl->l_cpuid = l->l_cpu->ci_cpuid; 3080 else 3081 #endif 3082 kl->l_cpuid = KI_NOCPU; 3083 } 3084 3085 /* 3086 * Fill in an eproc structure for the specified process. 3087 */ 3088 void 3089 fill_eproc(struct proc *p, struct eproc *ep) 3090 { 3091 struct tty *tp; 3092 struct lwp *l; 3093 3094 ep->e_paddr = p; 3095 ep->e_sess = p->p_session; 3096 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3097 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3098 if (p->p_stat == SIDL || P_ZOMBIE(p)) { 3099 ep->e_vm.vm_rssize = 0; 3100 ep->e_vm.vm_tsize = 0; 3101 ep->e_vm.vm_dsize = 0; 3102 ep->e_vm.vm_ssize = 0; 3103 /* ep->e_vm.vm_pmap = XXX; */ 3104 } else { 3105 struct vmspace *vm = p->p_vmspace; 3106 3107 ep->e_vm.vm_rssize = vm_resident_count(vm); 3108 ep->e_vm.vm_tsize = vm->vm_tsize; 3109 ep->e_vm.vm_dsize = vm->vm_dsize; 3110 ep->e_vm.vm_ssize = vm->vm_ssize; 3111 3112 /* Pick a "representative" LWP */ 3113 l = proc_representative_lwp(p); 3114 3115 if (l->l_wmesg) 3116 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3117 } 3118 if (p->p_pptr) 3119 ep->e_ppid = p->p_pptr->p_pid; 3120 else 3121 ep->e_ppid = 0; 3122 ep->e_pgid = p->p_pgrp->pg_id; 3123 ep->e_sid = ep->e_sess->s_sid; 3124 ep->e_jobc = p->p_pgrp->pg_jobc; 3125 if ((p->p_flag & P_CONTROLT) && 3126 (tp = ep->e_sess->s_ttyp)) { 3127 ep->e_tdev = tp->t_dev; 3128 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3129 ep->e_tsess = tp->t_session; 3130 } else 3131 ep->e_tdev = NODEV; 3132 3133 ep->e_xsize = ep->e_xrssize = 0; 3134 ep->e_xccount = ep->e_xswrss = 0; 3135 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3136 if (SESS_LEADER(p)) 3137 ep->e_flag |= EPROC_SLEADER; 3138 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3139 } 3140
Indexes created Tue Sep 23 13:09:54 GMT 2025