init_sysctl.c revision 1.138
1 /* $NetBSD: init_sysctl.c,v 1.138 2008/05/12 14:28:22 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007, 2008 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, and by Andrew Doran. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.138 2008/05/12 14:28:22 ad Exp $"); 34 35 #include "opt_sysv.h" 36 #include "opt_posix.h" 37 #include "opt_compat_netbsd32.h" 38 #include "pty.h" 39 #include "rnd.h" 40 41 #include <sys/types.h> 42 #include <sys/param.h> 43 #include <sys/sysctl.h> 44 #include <sys/cpu.h> 45 #include <sys/errno.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/unistd.h> 49 #include <sys/disklabel.h> 50 #include <sys/rnd.h> 51 #include <sys/vnode.h> 52 #include <sys/mount.h> 53 #include <sys/namei.h> 54 #include <sys/msgbuf.h> 55 #include <dev/cons.h> 56 #include <sys/socketvar.h> 57 #include <sys/file.h> 58 #include <sys/filedesc.h> 59 #include <sys/tty.h> 60 #include <sys/malloc.h> 61 #include <sys/resource.h> 62 #include <sys/resourcevar.h> 63 #include <sys/exec.h> 64 #include <sys/conf.h> 65 #include <sys/device.h> 66 #include <sys/stat.h> 67 #include <sys/kauth.h> 68 #include <sys/ktrace.h> 69 70 #ifdef COMPAT_NETBSD32 71 #include <compat/netbsd32/netbsd32.h> 72 #endif 73 74 #include <sys/cpu.h> 75 76 /* XXX this should not be here */ 77 int security_setidcore_dump; 78 char security_setidcore_path[MAXPATHLEN] = "/var/crash/%n.core"; 79 uid_t security_setidcore_owner = 0; 80 gid_t security_setidcore_group = 0; 81 mode_t security_setidcore_mode = (S_IRUSR|S_IWUSR); 82 83 static const u_int sysctl_flagmap[] = { 84 PK_ADVLOCK, P_ADVLOCK, 85 PK_EXEC, P_EXEC, 86 PK_NOCLDWAIT, P_NOCLDWAIT, 87 PK_32, P_32, 88 PK_CLDSIGIGN, P_CLDSIGIGN, 89 PK_SUGID, P_SUGID, 90 0 91 }; 92 93 static const u_int sysctl_sflagmap[] = { 94 PS_NOCLDSTOP, P_NOCLDSTOP, 95 PS_PPWAIT, P_PPWAIT, 96 PS_WEXIT, P_WEXIT, 97 PS_STOPFORK, P_STOPFORK, 98 PS_STOPEXEC, P_STOPEXEC, 99 PS_STOPEXIT, P_STOPEXIT, 100 0 101 }; 102 103 static const u_int sysctl_slflagmap[] = { 104 PSL_TRACED, P_TRACED, 105 PSL_FSTRACE, P_FSTRACE, 106 PSL_CHTRACED, P_CHTRACED, 107 PSL_SYSCALL, P_SYSCALL, 108 0 109 }; 110 111 static const u_int sysctl_lflagmap[] = { 112 PL_CONTROLT, P_CONTROLT, 113 0 114 }; 115 116 static const u_int sysctl_stflagmap[] = { 117 PST_PROFIL, P_PROFIL, 118 0 119 120 }; 121 122 static const u_int sysctl_lwpflagmap[] = { 123 LW_INMEM, P_INMEM, 124 LW_SINTR, P_SINTR, 125 LW_SYSTEM, P_SYSTEM, 126 0 127 }; 128 129 static const u_int sysctl_lwpprflagmap[] = { 130 LPR_DETACHED, L_DETACHED, 131 0 132 }; 133 134 /* 135 * try over estimating by 5 procs/lwps 136 */ 137 #define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc)) 138 #define KERN_LWPSLOP (5 * sizeof(struct kinfo_lwp)) 139 140 static int dcopyout(struct lwp *, const void *, void *, size_t); 141 142 static int 143 dcopyout(struct lwp *l, const void *kaddr, void *uaddr, size_t len) 144 { 145 int error; 146 147 error = copyout(kaddr, uaddr, len); 148 ktrmibio(-1, UIO_READ, uaddr, len, error); 149 150 return error; 151 } 152 153 #ifdef DIAGNOSTIC 154 static int sysctl_kern_trigger_panic(SYSCTLFN_PROTO); 155 #endif 156 static int sysctl_kern_maxvnodes(SYSCTLFN_PROTO); 157 static int sysctl_kern_rtc_offset(SYSCTLFN_PROTO); 158 static int sysctl_kern_maxproc(SYSCTLFN_PROTO); 159 static int sysctl_kern_hostid(SYSCTLFN_PROTO); 160 static int sysctl_setlen(SYSCTLFN_PROTO); 161 static int sysctl_kern_clockrate(SYSCTLFN_PROTO); 162 static int sysctl_kern_file(SYSCTLFN_PROTO); 163 static int sysctl_msgbuf(SYSCTLFN_PROTO); 164 static int sysctl_kern_defcorename(SYSCTLFN_PROTO); 165 static int sysctl_kern_cptime(SYSCTLFN_PROTO); 166 #if NPTY > 0 167 static int sysctl_kern_maxptys(SYSCTLFN_PROTO); 168 #endif /* NPTY > 0 */ 169 static int sysctl_kern_sbmax(SYSCTLFN_PROTO); 170 static int sysctl_kern_urnd(SYSCTLFN_PROTO); 171 static int sysctl_kern_arnd(SYSCTLFN_PROTO); 172 static int sysctl_kern_lwp(SYSCTLFN_PROTO); 173 static int sysctl_kern_forkfsleep(SYSCTLFN_PROTO); 174 static int sysctl_kern_root_partition(SYSCTLFN_PROTO); 175 static int sysctl_kern_drivers(SYSCTLFN_PROTO); 176 static int sysctl_kern_file2(SYSCTLFN_PROTO); 177 static int sysctl_security_setidcore(SYSCTLFN_PROTO); 178 static int sysctl_security_setidcorename(SYSCTLFN_PROTO); 179 static int sysctl_kern_cpid(SYSCTLFN_PROTO); 180 static int sysctl_doeproc(SYSCTLFN_PROTO); 181 static int sysctl_kern_proc_args(SYSCTLFN_PROTO); 182 static int sysctl_hw_usermem(SYSCTLFN_PROTO); 183 static int sysctl_hw_cnmagic(SYSCTLFN_PROTO); 184 185 static u_int sysctl_map_flags(const u_int *, u_int); 186 static void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool); 187 static void fill_lwp(struct lwp *l, struct kinfo_lwp *kl); 188 static void fill_file(struct kinfo_file *, const file_t *, const fdfile_t *, 189 int, pid_t); 190 191 /* 192 * ******************************************************************** 193 * section 1: setup routines 194 * ******************************************************************** 195 * These functions are stuffed into a link set for sysctl setup 196 * functions. They're never called or referenced from anywhere else. 197 * ******************************************************************** 198 */ 199 200 /* 201 * sets up the base nodes... 202 */ 203 SYSCTL_SETUP(sysctl_root_setup, "sysctl base setup") 204 { 205 206 sysctl_createv(clog, 0, NULL, NULL, 207 CTLFLAG_PERMANENT, 208 CTLTYPE_NODE, "kern", 209 SYSCTL_DESCR("High kernel"), 210 NULL, 0, NULL, 0, 211 CTL_KERN, CTL_EOL); 212 sysctl_createv(clog, 0, NULL, NULL, 213 CTLFLAG_PERMANENT, 214 CTLTYPE_NODE, "vm", 215 SYSCTL_DESCR("Virtual memory"), 216 NULL, 0, NULL, 0, 217 CTL_VM, CTL_EOL); 218 sysctl_createv(clog, 0, NULL, NULL, 219 CTLFLAG_PERMANENT, 220 CTLTYPE_NODE, "vfs", 221 SYSCTL_DESCR("Filesystem"), 222 NULL, 0, NULL, 0, 223 CTL_VFS, CTL_EOL); 224 sysctl_createv(clog, 0, NULL, NULL, 225 CTLFLAG_PERMANENT, 226 CTLTYPE_NODE, "net", 227 SYSCTL_DESCR("Networking"), 228 NULL, 0, NULL, 0, 229 CTL_NET, CTL_EOL); 230 sysctl_createv(clog, 0, NULL, NULL, 231 CTLFLAG_PERMANENT, 232 CTLTYPE_NODE, "debug", 233 SYSCTL_DESCR("Debugging"), 234 NULL, 0, NULL, 0, 235 CTL_DEBUG, CTL_EOL); 236 sysctl_createv(clog, 0, NULL, NULL, 237 CTLFLAG_PERMANENT, 238 CTLTYPE_NODE, "hw", 239 SYSCTL_DESCR("Generic CPU, I/O"), 240 NULL, 0, NULL, 0, 241 CTL_HW, CTL_EOL); 242 sysctl_createv(clog, 0, NULL, NULL, 243 CTLFLAG_PERMANENT, 244 CTLTYPE_NODE, "machdep", 245 SYSCTL_DESCR("Machine dependent"), 246 NULL, 0, NULL, 0, 247 CTL_MACHDEP, CTL_EOL); 248 /* 249 * this node is inserted so that the sysctl nodes in libc can 250 * operate. 251 */ 252 sysctl_createv(clog, 0, NULL, NULL, 253 CTLFLAG_PERMANENT, 254 CTLTYPE_NODE, "user", 255 SYSCTL_DESCR("User-level"), 256 NULL, 0, NULL, 0, 257 CTL_USER, CTL_EOL); 258 sysctl_createv(clog, 0, NULL, NULL, 259 CTLFLAG_PERMANENT, 260 CTLTYPE_NODE, "ddb", 261 SYSCTL_DESCR("In-kernel debugger"), 262 NULL, 0, NULL, 0, 263 CTL_DDB, CTL_EOL); 264 sysctl_createv(clog, 0, NULL, NULL, 265 CTLFLAG_PERMANENT, 266 CTLTYPE_NODE, "proc", 267 SYSCTL_DESCR("Per-process"), 268 NULL, 0, NULL, 0, 269 CTL_PROC, CTL_EOL); 270 sysctl_createv(clog, 0, NULL, NULL, 271 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 272 CTLTYPE_NODE, "vendor", 273 SYSCTL_DESCR("Vendor specific"), 274 NULL, 0, NULL, 0, 275 CTL_VENDOR, CTL_EOL); 276 sysctl_createv(clog, 0, NULL, NULL, 277 CTLFLAG_PERMANENT, 278 CTLTYPE_NODE, "emul", 279 SYSCTL_DESCR("Emulation settings"), 280 NULL, 0, NULL, 0, 281 CTL_EMUL, CTL_EOL); 282 sysctl_createv(clog, 0, NULL, NULL, 283 CTLFLAG_PERMANENT, 284 CTLTYPE_NODE, "security", 285 SYSCTL_DESCR("Security"), 286 NULL, 0, NULL, 0, 287 CTL_SECURITY, CTL_EOL); 288 } 289 290 /* 291 * this setup routine is a replacement for kern_sysctl() 292 */ 293 SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup") 294 { 295 extern int kern_logsigexit; /* defined in kern/kern_sig.c */ 296 extern fixpt_t ccpu; /* defined in kern/kern_synch.c */ 297 extern int dumponpanic; /* defined in kern/subr_prf.c */ 298 const struct sysctlnode *rnode; 299 300 sysctl_createv(clog, 0, NULL, NULL, 301 CTLFLAG_PERMANENT, 302 CTLTYPE_NODE, "kern", NULL, 303 NULL, 0, NULL, 0, 304 CTL_KERN, CTL_EOL); 305 306 sysctl_createv(clog, 0, NULL, NULL, 307 CTLFLAG_PERMANENT, 308 CTLTYPE_STRING, "ostype", 309 SYSCTL_DESCR("Operating system type"), 310 NULL, 0, &ostype, 0, 311 CTL_KERN, KERN_OSTYPE, CTL_EOL); 312 sysctl_createv(clog, 0, NULL, NULL, 313 CTLFLAG_PERMANENT, 314 CTLTYPE_STRING, "osrelease", 315 SYSCTL_DESCR("Operating system release"), 316 NULL, 0, &osrelease, 0, 317 CTL_KERN, KERN_OSRELEASE, CTL_EOL); 318 sysctl_createv(clog, 0, NULL, NULL, 319 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 320 CTLTYPE_INT, "osrevision", 321 SYSCTL_DESCR("Operating system revision"), 322 NULL, __NetBSD_Version__, NULL, 0, 323 CTL_KERN, KERN_OSREV, CTL_EOL); 324 sysctl_createv(clog, 0, NULL, NULL, 325 CTLFLAG_PERMANENT, 326 CTLTYPE_STRING, "version", 327 SYSCTL_DESCR("Kernel version"), 328 NULL, 0, &version, 0, 329 CTL_KERN, KERN_VERSION, CTL_EOL); 330 sysctl_createv(clog, 0, NULL, NULL, 331 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 332 CTLTYPE_INT, "maxvnodes", 333 SYSCTL_DESCR("Maximum number of vnodes"), 334 sysctl_kern_maxvnodes, 0, NULL, 0, 335 CTL_KERN, KERN_MAXVNODES, CTL_EOL); 336 sysctl_createv(clog, 0, NULL, NULL, 337 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 338 CTLTYPE_INT, "maxproc", 339 SYSCTL_DESCR("Maximum number of simultaneous processes"), 340 sysctl_kern_maxproc, 0, NULL, 0, 341 CTL_KERN, KERN_MAXPROC, CTL_EOL); 342 sysctl_createv(clog, 0, NULL, NULL, 343 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 344 CTLTYPE_INT, "maxfiles", 345 SYSCTL_DESCR("Maximum number of open files"), 346 NULL, 0, &maxfiles, 0, 347 CTL_KERN, KERN_MAXFILES, CTL_EOL); 348 sysctl_createv(clog, 0, NULL, NULL, 349 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 350 CTLTYPE_INT, "argmax", 351 SYSCTL_DESCR("Maximum number of bytes of arguments to " 352 "execve(2)"), 353 NULL, ARG_MAX, NULL, 0, 354 CTL_KERN, KERN_ARGMAX, CTL_EOL); 355 sysctl_createv(clog, 0, NULL, NULL, 356 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 357 CTLTYPE_STRING, "hostname", 358 SYSCTL_DESCR("System hostname"), 359 sysctl_setlen, 0, &hostname, MAXHOSTNAMELEN, 360 CTL_KERN, KERN_HOSTNAME, CTL_EOL); 361 sysctl_createv(clog, 0, NULL, NULL, 362 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 363 CTLTYPE_INT, "hostid", 364 SYSCTL_DESCR("System host ID number"), 365 sysctl_kern_hostid, 0, NULL, 0, 366 CTL_KERN, KERN_HOSTID, CTL_EOL); 367 sysctl_createv(clog, 0, NULL, NULL, 368 CTLFLAG_PERMANENT, 369 CTLTYPE_STRUCT, "clockrate", 370 SYSCTL_DESCR("Kernel clock rates"), 371 sysctl_kern_clockrate, 0, NULL, 372 sizeof(struct clockinfo), 373 CTL_KERN, KERN_CLOCKRATE, CTL_EOL); 374 sysctl_createv(clog, 0, NULL, NULL, 375 CTLFLAG_PERMANENT, 376 CTLTYPE_INT, "hardclock_ticks", 377 SYSCTL_DESCR("Number of hardclock ticks"), 378 NULL, 0, &hardclock_ticks, sizeof(hardclock_ticks), 379 CTL_KERN, KERN_HARDCLOCK_TICKS, CTL_EOL); 380 sysctl_createv(clog, 0, NULL, NULL, 381 CTLFLAG_PERMANENT, 382 CTLTYPE_STRUCT, "vnode", 383 SYSCTL_DESCR("System vnode table"), 384 sysctl_kern_vnode, 0, NULL, 0, 385 CTL_KERN, KERN_VNODE, CTL_EOL); 386 sysctl_createv(clog, 0, NULL, NULL, 387 CTLFLAG_PERMANENT, 388 CTLTYPE_STRUCT, "file", 389 SYSCTL_DESCR("System open file table"), 390 sysctl_kern_file, 0, NULL, 0, 391 CTL_KERN, KERN_FILE, CTL_EOL); 392 #ifndef GPROF 393 sysctl_createv(clog, 0, NULL, NULL, 394 CTLFLAG_PERMANENT, 395 CTLTYPE_NODE, "profiling", 396 SYSCTL_DESCR("Profiling information (not available)"), 397 sysctl_notavail, 0, NULL, 0, 398 CTL_KERN, KERN_PROF, CTL_EOL); 399 #endif 400 sysctl_createv(clog, 0, NULL, NULL, 401 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 402 CTLTYPE_INT, "posix1version", 403 SYSCTL_DESCR("Version of ISO/IEC 9945 (POSIX 1003.1) " 404 "with which the operating system attempts " 405 "to comply"), 406 NULL, _POSIX_VERSION, NULL, 0, 407 CTL_KERN, KERN_POSIX1, CTL_EOL); 408 sysctl_createv(clog, 0, NULL, NULL, 409 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 410 CTLTYPE_INT, "ngroups", 411 SYSCTL_DESCR("Maximum number of supplemental groups"), 412 NULL, NGROUPS_MAX, NULL, 0, 413 CTL_KERN, KERN_NGROUPS, CTL_EOL); 414 sysctl_createv(clog, 0, NULL, NULL, 415 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 416 CTLTYPE_INT, "job_control", 417 SYSCTL_DESCR("Whether job control is available"), 418 NULL, 1, NULL, 0, 419 CTL_KERN, KERN_JOB_CONTROL, CTL_EOL); 420 sysctl_createv(clog, 0, NULL, NULL, 421 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 422 CTLTYPE_INT, "saved_ids", 423 SYSCTL_DESCR("Whether POSIX saved set-group/user ID is " 424 "available"), NULL, 425 #ifdef _POSIX_SAVED_IDS 426 1, 427 #else /* _POSIX_SAVED_IDS */ 428 0, 429 #endif /* _POSIX_SAVED_IDS */ 430 NULL, 0, CTL_KERN, KERN_SAVED_IDS, CTL_EOL); 431 sysctl_createv(clog, 0, NULL, NULL, 432 CTLFLAG_PERMANENT, 433 CTLTYPE_STRUCT, "boottime", 434 SYSCTL_DESCR("System boot time"), 435 NULL, 0, &boottime, sizeof(boottime), 436 CTL_KERN, KERN_BOOTTIME, CTL_EOL); 437 sysctl_createv(clog, 0, NULL, NULL, 438 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 439 CTLTYPE_STRING, "domainname", 440 SYSCTL_DESCR("YP domain name"), 441 sysctl_setlen, 0, &domainname, MAXHOSTNAMELEN, 442 CTL_KERN, KERN_DOMAINNAME, CTL_EOL); 443 sysctl_createv(clog, 0, NULL, NULL, 444 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 445 CTLTYPE_INT, "maxpartitions", 446 SYSCTL_DESCR("Maximum number of partitions allowed per " 447 "disk"), 448 NULL, MAXPARTITIONS, NULL, 0, 449 CTL_KERN, KERN_MAXPARTITIONS, CTL_EOL); 450 sysctl_createv(clog, 0, NULL, NULL, 451 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 452 CTLTYPE_INT, "rawpartition", 453 SYSCTL_DESCR("Raw partition of a disk"), 454 NULL, RAW_PART, NULL, 0, 455 CTL_KERN, KERN_RAWPARTITION, CTL_EOL); 456 sysctl_createv(clog, 0, NULL, NULL, 457 CTLFLAG_PERMANENT, 458 CTLTYPE_STRUCT, "timex", NULL, 459 sysctl_notavail, 0, NULL, 0, 460 CTL_KERN, KERN_TIMEX, 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, 490 CTLTYPE_NODE, "ipc", 491 SYSCTL_DESCR("SysV IPC options"), 492 NULL, 0, NULL, 0, 493 CTL_KERN, KERN_SYSVIPC, CTL_EOL); 494 sysctl_createv(clog, 0, NULL, NULL, 495 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 496 CTLTYPE_INT, "sysvmsg", 497 SYSCTL_DESCR("System V style message support available"), 498 NULL, 499 #ifdef SYSVMSG 500 1, 501 #else /* SYSVMSG */ 502 0, 503 #endif /* SYSVMSG */ 504 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_MSG, CTL_EOL); 505 sysctl_createv(clog, 0, NULL, NULL, 506 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 507 CTLTYPE_INT, "sysvsem", 508 SYSCTL_DESCR("System V style semaphore support " 509 "available"), NULL, 510 #ifdef SYSVSEM 511 1, 512 #else /* SYSVSEM */ 513 0, 514 #endif /* SYSVSEM */ 515 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SEM, CTL_EOL); 516 sysctl_createv(clog, 0, NULL, NULL, 517 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 518 CTLTYPE_INT, "sysvshm", 519 SYSCTL_DESCR("System V style shared memory support " 520 "available"), NULL, 521 #ifdef SYSVSHM 522 1, 523 #else /* SYSVSHM */ 524 0, 525 #endif /* SYSVSHM */ 526 NULL, 0, CTL_KERN, KERN_SYSVIPC, KERN_SYSVIPC_SHM, CTL_EOL); 527 sysctl_createv(clog, 0, NULL, NULL, 528 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 529 CTLTYPE_INT, "synchronized_io", 530 SYSCTL_DESCR("Whether the POSIX 1003.1b Synchronized " 531 "I/O Option is available on this system"), 532 NULL, 1, NULL, 0, 533 CTL_KERN, KERN_SYNCHRONIZED_IO, CTL_EOL); 534 sysctl_createv(clog, 0, NULL, NULL, 535 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 536 CTLTYPE_INT, "iov_max", 537 SYSCTL_DESCR("Maximum number of iovec structures per " 538 "process"), 539 NULL, IOV_MAX, NULL, 0, 540 CTL_KERN, KERN_IOV_MAX, CTL_EOL); 541 sysctl_createv(clog, 0, NULL, NULL, 542 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 543 CTLTYPE_INT, "mapped_files", 544 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory Mapped " 545 "Files Option is available on this system"), 546 NULL, 1, NULL, 0, 547 CTL_KERN, KERN_MAPPED_FILES, CTL_EOL); 548 sysctl_createv(clog, 0, NULL, NULL, 549 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 550 CTLTYPE_INT, "memlock", 551 SYSCTL_DESCR("Whether the POSIX 1003.1b Process Memory " 552 "Locking Option is available on this " 553 "system"), 554 NULL, 1, NULL, 0, 555 CTL_KERN, KERN_MEMLOCK, CTL_EOL); 556 sysctl_createv(clog, 0, NULL, NULL, 557 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 558 CTLTYPE_INT, "memlock_range", 559 SYSCTL_DESCR("Whether the POSIX 1003.1b Range Memory " 560 "Locking Option is available on this " 561 "system"), 562 NULL, 1, NULL, 0, 563 CTL_KERN, KERN_MEMLOCK_RANGE, CTL_EOL); 564 sysctl_createv(clog, 0, NULL, NULL, 565 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 566 CTLTYPE_INT, "memory_protection", 567 SYSCTL_DESCR("Whether the POSIX 1003.1b Memory " 568 "Protection Option is available on this " 569 "system"), 570 NULL, 1, NULL, 0, 571 CTL_KERN, KERN_MEMORY_PROTECTION, CTL_EOL); 572 sysctl_createv(clog, 0, NULL, NULL, 573 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 574 CTLTYPE_INT, "login_name_max", 575 SYSCTL_DESCR("Maximum login name length"), 576 NULL, LOGIN_NAME_MAX, NULL, 0, 577 CTL_KERN, KERN_LOGIN_NAME_MAX, CTL_EOL); 578 sysctl_createv(clog, 0, NULL, NULL, 579 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 580 CTLTYPE_STRING, "defcorename", 581 SYSCTL_DESCR("Default core file name"), 582 sysctl_kern_defcorename, 0, defcorename, MAXPATHLEN, 583 CTL_KERN, KERN_DEFCORENAME, CTL_EOL); 584 sysctl_createv(clog, 0, NULL, NULL, 585 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 586 CTLTYPE_INT, "logsigexit", 587 SYSCTL_DESCR("Log process exit when caused by signals"), 588 NULL, 0, &kern_logsigexit, 0, 589 CTL_KERN, KERN_LOGSIGEXIT, CTL_EOL); 590 sysctl_createv(clog, 0, NULL, NULL, 591 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 592 CTLTYPE_INT, "fscale", 593 SYSCTL_DESCR("Kernel fixed-point scale factor"), 594 NULL, FSCALE, NULL, 0, 595 CTL_KERN, KERN_FSCALE, CTL_EOL); 596 sysctl_createv(clog, 0, NULL, NULL, 597 CTLFLAG_PERMANENT, 598 CTLTYPE_INT, "ccpu", 599 SYSCTL_DESCR("Scheduler exponential decay value"), 600 NULL, 0, &ccpu, 0, 601 CTL_KERN, KERN_CCPU, CTL_EOL); 602 sysctl_createv(clog, 0, NULL, NULL, 603 CTLFLAG_PERMANENT, 604 CTLTYPE_STRUCT, "cp_time", 605 SYSCTL_DESCR("Clock ticks spent in different CPU states"), 606 sysctl_kern_cptime, 0, NULL, 0, 607 CTL_KERN, KERN_CP_TIME, CTL_EOL); 608 sysctl_createv(clog, 0, NULL, NULL, 609 CTLFLAG_PERMANENT, 610 CTLTYPE_INT, "msgbuf", 611 SYSCTL_DESCR("Kernel message buffer"), 612 sysctl_msgbuf, 0, NULL, 0, 613 CTL_KERN, KERN_MSGBUF, CTL_EOL); 614 sysctl_createv(clog, 0, NULL, NULL, 615 CTLFLAG_PERMANENT, 616 CTLTYPE_STRUCT, "consdev", 617 SYSCTL_DESCR("Console device"), 618 sysctl_consdev, 0, NULL, sizeof(dev_t), 619 CTL_KERN, KERN_CONSDEV, CTL_EOL); 620 #if NPTY > 0 621 sysctl_createv(clog, 0, NULL, NULL, 622 CTLFLAG_PERMANENT, 623 CTLTYPE_INT, "maxptys", 624 SYSCTL_DESCR("Maximum number of pseudo-ttys"), 625 sysctl_kern_maxptys, 0, NULL, 0, 626 CTL_KERN, KERN_MAXPTYS, CTL_EOL); 627 #endif /* NPTY > 0 */ 628 sysctl_createv(clog, 0, NULL, NULL, 629 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 630 CTLTYPE_INT, "maxphys", 631 SYSCTL_DESCR("Maximum raw I/O transfer size"), 632 NULL, MAXPHYS, NULL, 0, 633 CTL_KERN, KERN_MAXPHYS, CTL_EOL); 634 sysctl_createv(clog, 0, NULL, NULL, 635 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 636 CTLTYPE_INT, "sbmax", 637 SYSCTL_DESCR("Maximum socket buffer size"), 638 sysctl_kern_sbmax, 0, NULL, 0, 639 CTL_KERN, KERN_SBMAX, CTL_EOL); 640 sysctl_createv(clog, 0, NULL, NULL, 641 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 642 CTLTYPE_INT, "monotonic_clock", 643 SYSCTL_DESCR("Implementation version of the POSIX " 644 "1003.1b Monotonic Clock Option"), 645 /* XXX _POSIX_VERSION */ 646 NULL, _POSIX_MONOTONIC_CLOCK, NULL, 0, 647 CTL_KERN, KERN_MONOTONIC_CLOCK, CTL_EOL); 648 sysctl_createv(clog, 0, NULL, NULL, 649 CTLFLAG_PERMANENT, 650 CTLTYPE_INT, "urandom", 651 SYSCTL_DESCR("Random integer value"), 652 sysctl_kern_urnd, 0, NULL, 0, 653 CTL_KERN, KERN_URND, CTL_EOL); 654 sysctl_createv(clog, 0, NULL, NULL, 655 CTLFLAG_PERMANENT, 656 CTLTYPE_INT, "arandom", 657 SYSCTL_DESCR("n bytes of random data"), 658 sysctl_kern_arnd, 0, NULL, 0, 659 CTL_KERN, KERN_ARND, CTL_EOL); 660 sysctl_createv(clog, 0, NULL, NULL, 661 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 662 CTLTYPE_INT, "labelsector", 663 SYSCTL_DESCR("Sector number containing the disklabel"), 664 NULL, LABELSECTOR, NULL, 0, 665 CTL_KERN, KERN_LABELSECTOR, CTL_EOL); 666 sysctl_createv(clog, 0, NULL, NULL, 667 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 668 CTLTYPE_INT, "labeloffset", 669 SYSCTL_DESCR("Offset of the disklabel within the " 670 "sector"), 671 NULL, LABELOFFSET, NULL, 0, 672 CTL_KERN, KERN_LABELOFFSET, CTL_EOL); 673 sysctl_createv(clog, 0, NULL, NULL, 674 CTLFLAG_PERMANENT, 675 CTLTYPE_NODE, "lwp", 676 SYSCTL_DESCR("System-wide LWP information"), 677 sysctl_kern_lwp, 0, NULL, 0, 678 CTL_KERN, KERN_LWP, CTL_EOL); 679 sysctl_createv(clog, 0, NULL, NULL, 680 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 681 CTLTYPE_INT, "forkfsleep", 682 SYSCTL_DESCR("Milliseconds to sleep on fork failure due " 683 "to process limits"), 684 sysctl_kern_forkfsleep, 0, NULL, 0, 685 CTL_KERN, KERN_FORKFSLEEP, CTL_EOL); 686 sysctl_createv(clog, 0, NULL, NULL, 687 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 688 CTLTYPE_INT, "posix_threads", 689 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 690 "Threads option to which the system " 691 "attempts to conform"), 692 /* XXX _POSIX_VERSION */ 693 NULL, _POSIX_THREADS, NULL, 0, 694 CTL_KERN, KERN_POSIX_THREADS, CTL_EOL); 695 sysctl_createv(clog, 0, NULL, NULL, 696 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 697 CTLTYPE_INT, "posix_semaphores", 698 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 699 "Semaphores option to which the system " 700 "attempts to conform"), NULL, 701 #ifdef P1003_1B_SEMAPHORE 702 200112, 703 #else /* P1003_1B_SEMAPHORE */ 704 0, 705 #endif /* P1003_1B_SEMAPHORE */ 706 NULL, 0, CTL_KERN, KERN_POSIX_SEMAPHORES, CTL_EOL); 707 sysctl_createv(clog, 0, NULL, NULL, 708 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 709 CTLTYPE_INT, "posix_barriers", 710 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 711 "Barriers option to which the system " 712 "attempts to conform"), 713 /* XXX _POSIX_VERSION */ 714 NULL, _POSIX_BARRIERS, NULL, 0, 715 CTL_KERN, KERN_POSIX_BARRIERS, CTL_EOL); 716 sysctl_createv(clog, 0, NULL, NULL, 717 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 718 CTLTYPE_INT, "posix_timers", 719 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 720 "Timers option to which the system " 721 "attempts to conform"), 722 /* XXX _POSIX_VERSION */ 723 NULL, _POSIX_TIMERS, NULL, 0, 724 CTL_KERN, KERN_POSIX_TIMERS, CTL_EOL); 725 sysctl_createv(clog, 0, NULL, NULL, 726 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 727 CTLTYPE_INT, "posix_spin_locks", 728 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its Spin " 729 "Locks option to which the system attempts " 730 "to conform"), 731 /* XXX _POSIX_VERSION */ 732 NULL, _POSIX_SPIN_LOCKS, NULL, 0, 733 CTL_KERN, KERN_POSIX_SPIN_LOCKS, CTL_EOL); 734 sysctl_createv(clog, 0, NULL, NULL, 735 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 736 CTLTYPE_INT, "posix_reader_writer_locks", 737 SYSCTL_DESCR("Version of IEEE Std 1003.1 and its " 738 "Read-Write Locks option to which the " 739 "system attempts to conform"), 740 /* XXX _POSIX_VERSION */ 741 NULL, _POSIX_READER_WRITER_LOCKS, NULL, 0, 742 CTL_KERN, KERN_POSIX_READER_WRITER_LOCKS, CTL_EOL); 743 sysctl_createv(clog, 0, NULL, NULL, 744 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 745 CTLTYPE_INT, "dump_on_panic", 746 SYSCTL_DESCR("Perform a crash dump on system panic"), 747 NULL, 0, &dumponpanic, 0, 748 CTL_KERN, KERN_DUMP_ON_PANIC, CTL_EOL); 749 #ifdef DIAGNOSTIC 750 sysctl_createv(clog, 0, NULL, NULL, 751 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 752 CTLTYPE_INT, "panic_now", 753 SYSCTL_DESCR("Trigger a panic"), 754 sysctl_kern_trigger_panic, 0, NULL, 0, 755 CTL_KERN, CTL_CREATE, CTL_EOL); 756 #endif 757 sysctl_createv(clog, 0, NULL, NULL, 758 CTLFLAG_PERMANENT, 759 CTLTYPE_INT, "root_partition", 760 SYSCTL_DESCR("Root partition on the root device"), 761 sysctl_kern_root_partition, 0, NULL, 0, 762 CTL_KERN, KERN_ROOT_PARTITION, CTL_EOL); 763 sysctl_createv(clog, 0, NULL, NULL, 764 CTLFLAG_PERMANENT, 765 CTLTYPE_STRUCT, "drivers", 766 SYSCTL_DESCR("List of all drivers with block and " 767 "character device numbers"), 768 sysctl_kern_drivers, 0, NULL, 0, 769 CTL_KERN, KERN_DRIVERS, CTL_EOL); 770 sysctl_createv(clog, 0, NULL, NULL, 771 CTLFLAG_PERMANENT, 772 CTLTYPE_STRUCT, "file2", 773 SYSCTL_DESCR("System open file table"), 774 sysctl_kern_file2, 0, NULL, 0, 775 CTL_KERN, KERN_FILE2, CTL_EOL); 776 sysctl_createv(clog, 0, NULL, NULL, 777 CTLFLAG_PERMANENT, 778 CTLTYPE_STRUCT, "cp_id", 779 SYSCTL_DESCR("Mapping of CPU number to CPU id"), 780 sysctl_kern_cpid, 0, NULL, 0, 781 CTL_KERN, KERN_CP_ID, CTL_EOL); 782 sysctl_createv(clog, 0, NULL, &rnode, 783 CTLFLAG_PERMANENT, 784 CTLTYPE_NODE, "coredump", 785 SYSCTL_DESCR("Coredump settings."), 786 NULL, 0, NULL, 0, 787 CTL_KERN, CTL_CREATE, CTL_EOL); 788 sysctl_createv(clog, 0, &rnode, &rnode, 789 CTLFLAG_PERMANENT, 790 CTLTYPE_NODE, "setid", 791 SYSCTL_DESCR("Set-id processes' coredump settings."), 792 NULL, 0, NULL, 0, 793 CTL_CREATE, CTL_EOL); 794 sysctl_createv(clog, 0, &rnode, NULL, 795 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 796 CTLTYPE_INT, "dump", 797 SYSCTL_DESCR("Allow set-id processes to dump core."), 798 sysctl_security_setidcore, 0, &security_setidcore_dump, 799 sizeof(security_setidcore_dump), 800 CTL_CREATE, CTL_EOL); 801 sysctl_createv(clog, 0, &rnode, NULL, 802 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 803 CTLTYPE_STRING, "path", 804 SYSCTL_DESCR("Path pattern for set-id coredumps."), 805 sysctl_security_setidcorename, 0, 806 &security_setidcore_path, 807 sizeof(security_setidcore_path), 808 CTL_CREATE, CTL_EOL); 809 sysctl_createv(clog, 0, &rnode, NULL, 810 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 811 CTLTYPE_INT, "owner", 812 SYSCTL_DESCR("Owner id for set-id processes' cores."), 813 sysctl_security_setidcore, 0, &security_setidcore_owner, 814 0, 815 CTL_CREATE, CTL_EOL); 816 sysctl_createv(clog, 0, &rnode, NULL, 817 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 818 CTLTYPE_INT, "group", 819 SYSCTL_DESCR("Group id for set-id processes' cores."), 820 sysctl_security_setidcore, 0, &security_setidcore_group, 821 0, 822 CTL_CREATE, CTL_EOL); 823 sysctl_createv(clog, 0, &rnode, NULL, 824 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 825 CTLTYPE_INT, "mode", 826 SYSCTL_DESCR("Mode for set-id processes' cores."), 827 sysctl_security_setidcore, 0, &security_setidcore_mode, 828 0, 829 CTL_CREATE, CTL_EOL); 830 sysctl_createv(clog, 0, NULL, NULL, 831 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 832 CTLTYPE_INT, "no_sa_support", 833 SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"), 834 NULL, 1, NULL, 0, 835 CTL_KERN, CTL_CREATE, CTL_EOL); 836 } 837 838 SYSCTL_SETUP(sysctl_kern_proc_setup, 839 "sysctl kern.proc/proc2/proc_args subtree setup") 840 { 841 842 sysctl_createv(clog, 0, NULL, NULL, 843 CTLFLAG_PERMANENT, 844 CTLTYPE_NODE, "kern", NULL, 845 NULL, 0, NULL, 0, 846 CTL_KERN, CTL_EOL); 847 848 sysctl_createv(clog, 0, NULL, NULL, 849 CTLFLAG_PERMANENT, 850 CTLTYPE_NODE, "proc", 851 SYSCTL_DESCR("System-wide process information"), 852 sysctl_doeproc, 0, NULL, 0, 853 CTL_KERN, KERN_PROC, CTL_EOL); 854 sysctl_createv(clog, 0, NULL, NULL, 855 CTLFLAG_PERMANENT, 856 CTLTYPE_NODE, "proc2", 857 SYSCTL_DESCR("Machine-independent process information"), 858 sysctl_doeproc, 0, NULL, 0, 859 CTL_KERN, KERN_PROC2, CTL_EOL); 860 sysctl_createv(clog, 0, NULL, NULL, 861 CTLFLAG_PERMANENT, 862 CTLTYPE_NODE, "proc_args", 863 SYSCTL_DESCR("Process argument information"), 864 sysctl_kern_proc_args, 0, NULL, 0, 865 CTL_KERN, KERN_PROC_ARGS, CTL_EOL); 866 867 /* 868 "nodes" under these: 869 870 KERN_PROC_ALL 871 KERN_PROC_PID pid 872 KERN_PROC_PGRP pgrp 873 KERN_PROC_SESSION sess 874 KERN_PROC_TTY tty 875 KERN_PROC_UID uid 876 KERN_PROC_RUID uid 877 KERN_PROC_GID gid 878 KERN_PROC_RGID gid 879 880 all in all, probably not worth the effort... 881 */ 882 } 883 884 SYSCTL_SETUP(sysctl_hw_setup, "sysctl hw subtree setup") 885 { 886 u_int u; 887 u_quad_t q; 888 889 sysctl_createv(clog, 0, NULL, NULL, 890 CTLFLAG_PERMANENT, 891 CTLTYPE_NODE, "hw", NULL, 892 NULL, 0, NULL, 0, 893 CTL_HW, CTL_EOL); 894 895 sysctl_createv(clog, 0, NULL, NULL, 896 CTLFLAG_PERMANENT, 897 CTLTYPE_STRING, "machine", 898 SYSCTL_DESCR("Machine class"), 899 NULL, 0, machine, 0, 900 CTL_HW, HW_MACHINE, CTL_EOL); 901 sysctl_createv(clog, 0, NULL, NULL, 902 CTLFLAG_PERMANENT, 903 CTLTYPE_STRING, "model", 904 SYSCTL_DESCR("Machine model"), 905 NULL, 0, cpu_model, 0, 906 CTL_HW, HW_MODEL, CTL_EOL); 907 sysctl_createv(clog, 0, NULL, NULL, 908 CTLFLAG_PERMANENT, 909 CTLTYPE_INT, "ncpu", 910 SYSCTL_DESCR("Number of CPUs configured"), 911 NULL, 0, &ncpu, 0, 912 CTL_HW, HW_NCPU, CTL_EOL); 913 sysctl_createv(clog, 0, NULL, NULL, 914 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 915 CTLTYPE_INT, "byteorder", 916 SYSCTL_DESCR("System byte order"), 917 NULL, BYTE_ORDER, NULL, 0, 918 CTL_HW, HW_BYTEORDER, CTL_EOL); 919 u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? 920 UINT_MAX : physmem * PAGE_SIZE; 921 sysctl_createv(clog, 0, NULL, NULL, 922 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 923 CTLTYPE_INT, "physmem", 924 SYSCTL_DESCR("Bytes of physical memory"), 925 NULL, u, NULL, 0, 926 CTL_HW, HW_PHYSMEM, CTL_EOL); 927 sysctl_createv(clog, 0, NULL, NULL, 928 CTLFLAG_PERMANENT, 929 CTLTYPE_INT, "usermem", 930 SYSCTL_DESCR("Bytes of non-kernel memory"), 931 sysctl_hw_usermem, 0, NULL, 0, 932 CTL_HW, HW_USERMEM, CTL_EOL); 933 sysctl_createv(clog, 0, NULL, NULL, 934 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 935 CTLTYPE_INT, "pagesize", 936 SYSCTL_DESCR("Software page size"), 937 NULL, PAGE_SIZE, NULL, 0, 938 CTL_HW, HW_PAGESIZE, CTL_EOL); 939 sysctl_createv(clog, 0, NULL, NULL, 940 CTLFLAG_PERMANENT, 941 CTLTYPE_STRING, "machine_arch", 942 SYSCTL_DESCR("Machine CPU class"), 943 NULL, 0, machine_arch, 0, 944 CTL_HW, HW_MACHINE_ARCH, CTL_EOL); 945 sysctl_createv(clog, 0, NULL, NULL, 946 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 947 CTLTYPE_INT, "alignbytes", 948 SYSCTL_DESCR("Alignment constraint for all possible " 949 "data types"), 950 NULL, ALIGNBYTES, NULL, 0, 951 CTL_HW, HW_ALIGNBYTES, CTL_EOL); 952 sysctl_createv(clog, 0, NULL, NULL, 953 CTLFLAG_PERMANENT|CTLFLAG_READWRITE|CTLFLAG_HEX, 954 CTLTYPE_STRING, "cnmagic", 955 SYSCTL_DESCR("Console magic key sequence"), 956 sysctl_hw_cnmagic, 0, NULL, CNS_LEN, 957 CTL_HW, HW_CNMAGIC, CTL_EOL); 958 q = (u_quad_t)physmem * PAGE_SIZE; 959 sysctl_createv(clog, 0, NULL, NULL, 960 CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, 961 CTLTYPE_QUAD, "physmem64", 962 SYSCTL_DESCR("Bytes of physical memory"), 963 NULL, q, NULL, 0, 964 CTL_HW, HW_PHYSMEM64, CTL_EOL); 965 sysctl_createv(clog, 0, NULL, NULL, 966 CTLFLAG_PERMANENT, 967 CTLTYPE_QUAD, "usermem64", 968 SYSCTL_DESCR("Bytes of non-kernel memory"), 969 sysctl_hw_usermem, 0, NULL, 0, 970 CTL_HW, HW_USERMEM64, CTL_EOL); 971 sysctl_createv(clog, 0, NULL, NULL, 972 CTLFLAG_PERMANENT, 973 CTLTYPE_INT, "ncpuonline", 974 SYSCTL_DESCR("Number of CPUs online"), 975 NULL, 0, &ncpuonline, 0, 976 CTL_HW, HW_NCPUONLINE, CTL_EOL); 977 } 978 979 #ifdef DEBUG 980 /* 981 * Debugging related system variables. 982 */ 983 struct ctldebug /* debug0, */ /* debug1, */ debug2, debug3, debug4; 984 struct ctldebug debug5, debug6, debug7, debug8, debug9; 985 struct ctldebug debug10, debug11, debug12, debug13, debug14; 986 struct ctldebug debug15, debug16, debug17, debug18, debug19; 987 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 988 &debug0, &debug1, &debug2, &debug3, &debug4, 989 &debug5, &debug6, &debug7, &debug8, &debug9, 990 &debug10, &debug11, &debug12, &debug13, &debug14, 991 &debug15, &debug16, &debug17, &debug18, &debug19, 992 }; 993 994 /* 995 * this setup routine is a replacement for debug_sysctl() 996 * 997 * note that it creates several nodes per defined debug variable 998 */ 999 SYSCTL_SETUP(sysctl_debug_setup, "sysctl debug subtree setup") 1000 { 1001 struct ctldebug *cdp; 1002 char nodename[20]; 1003 int i; 1004 1005 /* 1006 * two ways here: 1007 * 1008 * the "old" way (debug.name -> value) which was emulated by 1009 * the sysctl(8) binary 1010 * 1011 * the new way, which the sysctl(8) binary was actually using 1012 1013 node debug 1014 node debug.0 1015 string debug.0.name 1016 int debug.0.value 1017 int debug.name 1018 1019 */ 1020 1021 sysctl_createv(clog, 0, NULL, NULL, 1022 CTLFLAG_PERMANENT, 1023 CTLTYPE_NODE, "debug", NULL, 1024 NULL, 0, NULL, 0, 1025 CTL_DEBUG, CTL_EOL); 1026 1027 for (i = 0; i < CTL_DEBUG_MAXID; i++) { 1028 cdp = debugvars[i]; 1029 if (cdp->debugname == NULL || cdp->debugvar == NULL) 1030 continue; 1031 1032 snprintf(nodename, sizeof(nodename), "debug%d", i); 1033 sysctl_createv(clog, 0, NULL, NULL, 1034 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1035 CTLTYPE_NODE, nodename, NULL, 1036 NULL, 0, NULL, 0, 1037 CTL_DEBUG, i, CTL_EOL); 1038 sysctl_createv(clog, 0, NULL, NULL, 1039 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1040 CTLTYPE_STRING, "name", NULL, 1041 /*XXXUNCONST*/ 1042 NULL, 0, __UNCONST(cdp->debugname), 0, 1043 CTL_DEBUG, i, CTL_DEBUG_NAME, CTL_EOL); 1044 sysctl_createv(clog, 0, NULL, NULL, 1045 CTLFLAG_PERMANENT|CTLFLAG_HIDDEN, 1046 CTLTYPE_INT, "value", NULL, 1047 NULL, 0, cdp->debugvar, 0, 1048 CTL_DEBUG, i, CTL_DEBUG_VALUE, CTL_EOL); 1049 sysctl_createv(clog, 0, NULL, NULL, 1050 CTLFLAG_PERMANENT, 1051 CTLTYPE_INT, cdp->debugname, NULL, 1052 NULL, 0, cdp->debugvar, 0, 1053 CTL_DEBUG, CTL_CREATE, CTL_EOL); 1054 } 1055 } 1056 #endif /* DEBUG */ 1057 1058 /* 1059 * ******************************************************************** 1060 * section 2: private node-specific helper routines. 1061 * ******************************************************************** 1062 */ 1063 1064 #ifdef DIAGNOSTIC 1065 static int 1066 sysctl_kern_trigger_panic(SYSCTLFN_ARGS) 1067 { 1068 int newtrig, error; 1069 struct sysctlnode node; 1070 1071 newtrig = 0; 1072 node = *rnode; 1073 node.sysctl_data = &newtrig; 1074 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1075 if (error || newp == NULL) 1076 return (error); 1077 1078 if (newtrig != 0) 1079 panic("Panic triggered"); 1080 1081 return (error); 1082 } 1083 #endif 1084 1085 /* 1086 * sysctl helper routine for kern.maxvnodes. Drain vnodes if 1087 * new value is lower than desiredvnodes and then calls reinit 1088 * routines that needs to adjust to the new value. 1089 */ 1090 static int 1091 sysctl_kern_maxvnodes(SYSCTLFN_ARGS) 1092 { 1093 int error, new_vnodes, old_vnodes; 1094 struct sysctlnode node; 1095 1096 new_vnodes = desiredvnodes; 1097 node = *rnode; 1098 node.sysctl_data = &new_vnodes; 1099 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1100 if (error || newp == NULL) 1101 return (error); 1102 1103 old_vnodes = desiredvnodes; 1104 desiredvnodes = new_vnodes; 1105 if (new_vnodes < old_vnodes) { 1106 error = vfs_drainvnodes(new_vnodes, l); 1107 if (error) { 1108 desiredvnodes = old_vnodes; 1109 return (error); 1110 } 1111 } 1112 vfs_reinit(); 1113 nchreinit(); 1114 1115 return (0); 1116 } 1117 1118 /* 1119 * sysctl helper routine for rtc_offset - set time after changes 1120 */ 1121 static int 1122 sysctl_kern_rtc_offset(SYSCTLFN_ARGS) 1123 { 1124 struct timespec ts, delta; 1125 int error, new_rtc_offset; 1126 struct sysctlnode node; 1127 1128 new_rtc_offset = rtc_offset; 1129 node = *rnode; 1130 node.sysctl_data = &new_rtc_offset; 1131 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1132 if (error || newp == NULL) 1133 return (error); 1134 1135 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_TIME, 1136 KAUTH_REQ_SYSTEM_TIME_RTCOFFSET, 1137 KAUTH_ARG(new_rtc_offset), NULL, NULL)) 1138 return (EPERM); 1139 if (rtc_offset == new_rtc_offset) 1140 return (0); 1141 1142 /* if we change the offset, adjust the time */ 1143 nanotime(&ts); 1144 delta.tv_sec = 60 * (new_rtc_offset - rtc_offset); 1145 delta.tv_nsec = 0; 1146 timespecadd(&ts, &delta, &ts); 1147 rtc_offset = new_rtc_offset; 1148 return (settime(l->l_proc, &ts)); 1149 } 1150 1151 /* 1152 * sysctl helper routine for kern.maxproc. Ensures that the new 1153 * values are not too low or too high. 1154 */ 1155 static int 1156 sysctl_kern_maxproc(SYSCTLFN_ARGS) 1157 { 1158 int error, nmaxproc; 1159 struct sysctlnode node; 1160 1161 nmaxproc = maxproc; 1162 node = *rnode; 1163 node.sysctl_data = &nmaxproc; 1164 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1165 if (error || newp == NULL) 1166 return (error); 1167 1168 if (nmaxproc < 0 || nmaxproc >= PID_MAX) 1169 return (EINVAL); 1170 #ifdef __HAVE_CPU_MAXPROC 1171 if (nmaxproc > cpu_maxproc()) 1172 return (EINVAL); 1173 #endif 1174 maxproc = nmaxproc; 1175 1176 return (0); 1177 } 1178 1179 /* 1180 * sysctl helper function for kern.hostid. The hostid is a long, but 1181 * we export it as an int, so we need to give it a little help. 1182 */ 1183 static int 1184 sysctl_kern_hostid(SYSCTLFN_ARGS) 1185 { 1186 int error, inthostid; 1187 struct sysctlnode node; 1188 1189 inthostid = hostid; /* XXX assumes sizeof int <= sizeof long */ 1190 node = *rnode; 1191 node.sysctl_data = &inthostid; 1192 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1193 if (error || newp == NULL) 1194 return (error); 1195 1196 hostid = (unsigned)inthostid; 1197 1198 return (0); 1199 } 1200 1201 /* 1202 * sysctl helper function for kern.hostname and kern.domainnname. 1203 * resets the relevant recorded length when the underlying name is 1204 * changed. 1205 */ 1206 static int 1207 sysctl_setlen(SYSCTLFN_ARGS) 1208 { 1209 int error; 1210 1211 error = sysctl_lookup(SYSCTLFN_CALL(rnode)); 1212 if (error || newp == NULL) 1213 return (error); 1214 1215 switch (rnode->sysctl_num) { 1216 case KERN_HOSTNAME: 1217 hostnamelen = strlen((const char*)rnode->sysctl_data); 1218 break; 1219 case KERN_DOMAINNAME: 1220 domainnamelen = strlen((const char*)rnode->sysctl_data); 1221 break; 1222 } 1223 1224 return (0); 1225 } 1226 1227 /* 1228 * sysctl helper routine for kern.clockrate. Assembles a struct on 1229 * the fly to be returned to the caller. 1230 */ 1231 static int 1232 sysctl_kern_clockrate(SYSCTLFN_ARGS) 1233 { 1234 struct clockinfo clkinfo; 1235 struct sysctlnode node; 1236 1237 clkinfo.tick = tick; 1238 clkinfo.tickadj = tickadj; 1239 clkinfo.hz = hz; 1240 clkinfo.profhz = profhz; 1241 clkinfo.stathz = stathz ? stathz : hz; 1242 1243 node = *rnode; 1244 node.sysctl_data = &clkinfo; 1245 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1246 } 1247 1248 1249 /* 1250 * sysctl helper routine for kern.file pseudo-subtree. 1251 */ 1252 static int 1253 sysctl_kern_file(SYSCTLFN_ARGS) 1254 { 1255 int error; 1256 size_t buflen; 1257 struct file *fp, *dp, *np, fbuf; 1258 char *start, *where; 1259 1260 start = where = oldp; 1261 buflen = *oldlenp; 1262 dp = NULL; 1263 1264 if (where == NULL) { 1265 /* 1266 * overestimate by 10 files 1267 */ 1268 *oldlenp = sizeof(filehead) + (nfiles + 10) * 1269 sizeof(struct file); 1270 return (0); 1271 } 1272 1273 /* 1274 * first dcopyout filehead 1275 */ 1276 if (buflen < sizeof(filehead)) { 1277 *oldlenp = 0; 1278 return (0); 1279 } 1280 sysctl_unlock(); 1281 error = dcopyout(l, &filehead, where, sizeof(filehead)); 1282 if (error) { 1283 sysctl_relock(); 1284 return error; 1285 } 1286 buflen -= sizeof(filehead); 1287 where += sizeof(filehead); 1288 1289 /* 1290 * allocate dummy file descriptor to make position in list 1291 */ 1292 if ((dp = fgetdummy()) == NULL) { 1293 sysctl_relock(); 1294 return ENOMEM; 1295 } 1296 1297 /* 1298 * followed by an array of file structures 1299 */ 1300 mutex_enter(&filelist_lock); 1301 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1302 np = LIST_NEXT(fp, f_list); 1303 mutex_enter(&fp->f_lock); 1304 if (fp->f_count == 0) { 1305 mutex_exit(&fp->f_lock); 1306 continue; 1307 } 1308 /* 1309 * XXX Need to prevent that from being an alternative way 1310 * XXX to getting process information. 1311 */ 1312 if (kauth_authorize_generic(l->l_cred, 1313 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1314 mutex_exit(&fp->f_lock); 1315 continue; 1316 } 1317 if (buflen < sizeof(struct file)) { 1318 *oldlenp = where - start; 1319 mutex_exit(&fp->f_lock); 1320 error = ENOMEM; 1321 break; 1322 } 1323 memcpy(&fbuf, fp, sizeof(fbuf)); 1324 LIST_INSERT_AFTER(fp, dp, f_list); 1325 mutex_exit(&fp->f_lock); 1326 mutex_exit(&filelist_lock); 1327 error = dcopyout(l, &fbuf, where, sizeof(fbuf)); 1328 if (error) { 1329 mutex_enter(&filelist_lock); 1330 LIST_REMOVE(dp, f_list); 1331 break; 1332 } 1333 buflen -= sizeof(struct file); 1334 where += sizeof(struct file); 1335 mutex_enter(&filelist_lock); 1336 np = LIST_NEXT(dp, f_list); 1337 LIST_REMOVE(dp, f_list); 1338 } 1339 mutex_exit(&filelist_lock); 1340 *oldlenp = where - start; 1341 if (dp != NULL) 1342 fputdummy(dp); 1343 sysctl_relock(); 1344 return (error); 1345 } 1346 1347 /* 1348 * sysctl helper routine for kern.msgbufsize and kern.msgbuf. For the 1349 * former it merely checks the message buffer is set up. For the latter, 1350 * it also copies out the data if necessary. 1351 */ 1352 static int 1353 sysctl_msgbuf(SYSCTLFN_ARGS) 1354 { 1355 char *where = oldp; 1356 size_t len, maxlen; 1357 long beg, end; 1358 extern kmutex_t log_lock; 1359 int error; 1360 1361 if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) { 1362 msgbufenabled = 0; 1363 return (ENXIO); 1364 } 1365 1366 switch (rnode->sysctl_num) { 1367 case KERN_MSGBUFSIZE: { 1368 struct sysctlnode node = *rnode; 1369 int msg_bufs = (int)msgbufp->msg_bufs; 1370 node.sysctl_data = &msg_bufs; 1371 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1372 } 1373 case KERN_MSGBUF: 1374 break; 1375 default: 1376 return (EOPNOTSUPP); 1377 } 1378 1379 if (newp != NULL) 1380 return (EPERM); 1381 1382 if (oldp == NULL) { 1383 /* always return full buffer size */ 1384 *oldlenp = msgbufp->msg_bufs; 1385 return (0); 1386 } 1387 1388 sysctl_unlock(); 1389 1390 /* 1391 * First, copy from the write pointer to the end of 1392 * message buffer. 1393 */ 1394 error = 0; 1395 mutex_spin_enter(&log_lock); 1396 maxlen = MIN(msgbufp->msg_bufs, *oldlenp); 1397 beg = msgbufp->msg_bufx; 1398 end = msgbufp->msg_bufs; 1399 mutex_spin_exit(&log_lock); 1400 1401 while (maxlen > 0) { 1402 len = MIN(end - beg, maxlen); 1403 if (len == 0) 1404 break; 1405 /* XXX unlocked, but hardly matters. */ 1406 error = dcopyout(l, &msgbufp->msg_bufc[beg], where, len); 1407 if (error) 1408 break; 1409 where += len; 1410 maxlen -= len; 1411 1412 /* 1413 * ... then, copy from the beginning of message buffer to 1414 * the write pointer. 1415 */ 1416 beg = 0; 1417 end = msgbufp->msg_bufx; 1418 } 1419 1420 sysctl_relock(); 1421 return (error); 1422 } 1423 1424 /* 1425 * sysctl helper routine for kern.defcorename. In the case of a new 1426 * string being assigned, check that it's not a zero-length string. 1427 * (XXX the check in -current doesn't work, but do we really care?) 1428 */ 1429 static int 1430 sysctl_kern_defcorename(SYSCTLFN_ARGS) 1431 { 1432 int error; 1433 char *newcorename; 1434 struct sysctlnode node; 1435 1436 newcorename = PNBUF_GET(); 1437 node = *rnode; 1438 node.sysctl_data = &newcorename[0]; 1439 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 1440 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1441 if (error || newp == NULL) { 1442 goto done; 1443 } 1444 1445 /* 1446 * when sysctl_lookup() deals with a string, it's guaranteed 1447 * to come back nul terminated. So there. :) 1448 */ 1449 if (strlen(newcorename) == 0) { 1450 error = EINVAL; 1451 } else { 1452 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 1453 error = 0; 1454 } 1455 done: 1456 PNBUF_PUT(newcorename); 1457 return error; 1458 } 1459 1460 /* 1461 * sysctl helper routine for kern.cp_time node. Adds up cpu time 1462 * across all cpus. 1463 */ 1464 static int 1465 sysctl_kern_cptime(SYSCTLFN_ARGS) 1466 { 1467 struct sysctlnode node = *rnode; 1468 uint64_t *cp_time = NULL; 1469 int error, n = ncpu, i; 1470 struct cpu_info *ci; 1471 CPU_INFO_ITERATOR cii; 1472 1473 /* 1474 * if you specifically pass a buffer that is the size of the 1475 * sum, or if you are probing for the size, you get the "sum" 1476 * of cp_time (and the size thereof) across all processors. 1477 * 1478 * alternately, you can pass an additional mib number and get 1479 * cp_time for that particular processor. 1480 */ 1481 switch (namelen) { 1482 case 0: 1483 if (*oldlenp == sizeof(uint64_t) * CPUSTATES || oldp == NULL) { 1484 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1485 n = -1; /* SUM */ 1486 } 1487 else { 1488 node.sysctl_size = n * sizeof(uint64_t) * CPUSTATES; 1489 n = -2; /* ALL */ 1490 } 1491 break; 1492 case 1: 1493 if (name[0] < 0 || name[0] >= n) 1494 return (ENOENT); /* ENOSUCHPROCESSOR */ 1495 node.sysctl_size = sizeof(uint64_t) * CPUSTATES; 1496 n = name[0]; 1497 /* 1498 * adjust these so that sysctl_lookup() will be happy 1499 */ 1500 name++; 1501 namelen--; 1502 break; 1503 default: 1504 return (EINVAL); 1505 } 1506 1507 cp_time = kmem_alloc(node.sysctl_size, KM_SLEEP); 1508 if (cp_time == NULL) 1509 return (ENOMEM); 1510 node.sysctl_data = cp_time; 1511 memset(cp_time, 0, node.sysctl_size); 1512 1513 for (CPU_INFO_FOREACH(cii, ci)) { 1514 if (n <= 0) { 1515 for (i = 0; i < CPUSTATES; i++) { 1516 cp_time[i] += ci->ci_schedstate.spc_cp_time[i]; 1517 } 1518 } 1519 /* 1520 * if a specific processor was requested and we just 1521 * did it, we're done here 1522 */ 1523 if (n == 0) 1524 break; 1525 /* 1526 * if doing "all", skip to next cp_time set for next processor 1527 */ 1528 if (n == -2) 1529 cp_time += CPUSTATES; 1530 /* 1531 * if we're doing a specific processor, we're one 1532 * processor closer 1533 */ 1534 if (n > 0) 1535 n--; 1536 } 1537 1538 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1539 kmem_free(node.sysctl_data, node.sysctl_size); 1540 return (error); 1541 } 1542 1543 #if NPTY > 0 1544 /* 1545 * sysctl helper routine for kern.maxptys. Ensures that any new value 1546 * is acceptable to the pty subsystem. 1547 */ 1548 static int 1549 sysctl_kern_maxptys(SYSCTLFN_ARGS) 1550 { 1551 int pty_maxptys(int, int); /* defined in kern/tty_pty.c */ 1552 int error, xmax; 1553 struct sysctlnode node; 1554 1555 /* get current value of maxptys */ 1556 xmax = pty_maxptys(0, 0); 1557 1558 node = *rnode; 1559 node.sysctl_data = &xmax; 1560 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1561 if (error || newp == NULL) 1562 return (error); 1563 1564 if (xmax != pty_maxptys(xmax, 1)) 1565 return (EINVAL); 1566 1567 return (0); 1568 } 1569 #endif /* NPTY > 0 */ 1570 1571 /* 1572 * sysctl helper routine for kern.sbmax. Basically just ensures that 1573 * any new value is not too small. 1574 */ 1575 static int 1576 sysctl_kern_sbmax(SYSCTLFN_ARGS) 1577 { 1578 int error, new_sbmax; 1579 struct sysctlnode node; 1580 1581 new_sbmax = sb_max; 1582 node = *rnode; 1583 node.sysctl_data = &new_sbmax; 1584 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1585 if (error || newp == NULL) 1586 return (error); 1587 1588 KERNEL_LOCK(1, NULL); 1589 error = sb_max_set(new_sbmax); 1590 KERNEL_UNLOCK_ONE(NULL); 1591 1592 return (error); 1593 } 1594 1595 /* 1596 * sysctl helper routine for kern.urandom node. Picks a random number 1597 * for you. 1598 */ 1599 static int 1600 sysctl_kern_urnd(SYSCTLFN_ARGS) 1601 { 1602 #if NRND > 0 1603 int v, rv; 1604 1605 KERNEL_LOCK(1, NULL); 1606 rv = rnd_extract_data(&v, sizeof(v), RND_EXTRACT_ANY); 1607 KERNEL_UNLOCK_ONE(NULL); 1608 if (rv == sizeof(v)) { 1609 struct sysctlnode node = *rnode; 1610 node.sysctl_data = &v; 1611 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1612 } 1613 else 1614 return (EIO); /*XXX*/ 1615 #else 1616 return (EOPNOTSUPP); 1617 #endif 1618 } 1619 1620 /* 1621 * sysctl helper routine for kern.arandom node. Picks a random number 1622 * for you. 1623 */ 1624 static int 1625 sysctl_kern_arnd(SYSCTLFN_ARGS) 1626 { 1627 #if NRND > 0 1628 int error; 1629 void *v; 1630 struct sysctlnode node = *rnode; 1631 1632 if (*oldlenp == 0) 1633 return 0; 1634 if (*oldlenp > 8192) 1635 return E2BIG; 1636 1637 v = kmem_alloc(*oldlenp, KM_SLEEP); 1638 arc4randbytes(v, *oldlenp); 1639 node.sysctl_data = v; 1640 node.sysctl_size = *oldlenp; 1641 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1642 kmem_free(v, *oldlenp); 1643 return error; 1644 #else 1645 return (EOPNOTSUPP); 1646 #endif 1647 } 1648 /* 1649 * sysctl helper routine to do kern.lwp.* work. 1650 */ 1651 static int 1652 sysctl_kern_lwp(SYSCTLFN_ARGS) 1653 { 1654 struct kinfo_lwp klwp; 1655 struct proc *p; 1656 struct lwp *l2, *l3; 1657 char *where, *dp; 1658 int pid, elem_size, elem_count; 1659 int buflen, needed, error; 1660 bool gotit; 1661 1662 if (namelen == 1 && name[0] == CTL_QUERY) 1663 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1664 1665 dp = where = oldp; 1666 buflen = where != NULL ? *oldlenp : 0; 1667 error = needed = 0; 1668 1669 if (newp != NULL || namelen != 3) 1670 return (EINVAL); 1671 pid = name[0]; 1672 elem_size = name[1]; 1673 elem_count = name[2]; 1674 1675 sysctl_unlock(); 1676 if (pid == -1) { 1677 mutex_enter(proc_lock); 1678 LIST_FOREACH(p, &allproc, p_list) { 1679 /* Grab a hold on the process. */ 1680 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 1681 continue; 1682 } 1683 mutex_exit(proc_lock); 1684 1685 mutex_enter(p->p_lock); 1686 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1687 if (buflen >= elem_size && elem_count > 0) { 1688 lwp_lock(l2); 1689 fill_lwp(l2, &klwp); 1690 lwp_unlock(l2); 1691 mutex_exit(p->p_lock); 1692 1693 /* 1694 * Copy out elem_size, but not 1695 * larger than the size of a 1696 * struct kinfo_proc2. 1697 */ 1698 error = dcopyout(l, &klwp, dp, 1699 min(sizeof(klwp), elem_size)); 1700 if (error) { 1701 rw_exit(&p->p_reflock); 1702 goto cleanup; 1703 } 1704 mutex_enter(p->p_lock); 1705 LIST_FOREACH(l3, &p->p_lwps, 1706 l_sibling) { 1707 if (l2 == l3) 1708 break; 1709 } 1710 if (l3 == NULL) { 1711 mutex_exit(p->p_lock); 1712 rw_exit(&p->p_reflock); 1713 error = EAGAIN; 1714 goto cleanup; 1715 } 1716 dp += elem_size; 1717 buflen -= elem_size; 1718 elem_count--; 1719 } 1720 needed += elem_size; 1721 } 1722 mutex_exit(p->p_lock); 1723 1724 /* Drop reference to process. */ 1725 mutex_enter(proc_lock); 1726 rw_exit(&p->p_reflock); 1727 } 1728 mutex_exit(proc_lock); 1729 } else { 1730 mutex_enter(proc_lock); 1731 p = p_find(pid, PFIND_LOCKED); 1732 if (p == NULL) { 1733 error = ESRCH; 1734 mutex_exit(proc_lock); 1735 goto cleanup; 1736 } 1737 /* Grab a hold on the process. */ 1738 gotit = rw_tryenter(&p->p_reflock, RW_READER); 1739 mutex_exit(proc_lock); 1740 if (!gotit) { 1741 error = ESRCH; 1742 goto cleanup; 1743 } 1744 1745 mutex_enter(p->p_lock); 1746 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 1747 if (buflen >= elem_size && elem_count > 0) { 1748 lwp_lock(l2); 1749 fill_lwp(l2, &klwp); 1750 lwp_unlock(l2); 1751 mutex_exit(p->p_lock); 1752 /* 1753 * Copy out elem_size, but not larger than 1754 * the size of a struct kinfo_proc2. 1755 */ 1756 error = dcopyout(l, &klwp, dp, 1757 min(sizeof(klwp), elem_size)); 1758 if (error) { 1759 rw_exit(&p->p_reflock); 1760 goto cleanup; 1761 } 1762 mutex_enter(p->p_lock); 1763 LIST_FOREACH(l3, &p->p_lwps, l_sibling) { 1764 if (l2 == l3) 1765 break; 1766 } 1767 if (l3 == NULL) { 1768 mutex_exit(p->p_lock); 1769 rw_exit(&p->p_reflock); 1770 error = EAGAIN; 1771 goto cleanup; 1772 } 1773 dp += elem_size; 1774 buflen -= elem_size; 1775 elem_count--; 1776 } 1777 needed += elem_size; 1778 } 1779 mutex_exit(p->p_lock); 1780 1781 /* Drop reference to process. */ 1782 rw_exit(&p->p_reflock); 1783 } 1784 1785 if (where != NULL) { 1786 *oldlenp = dp - where; 1787 if (needed > *oldlenp) { 1788 sysctl_relock(); 1789 return (ENOMEM); 1790 } 1791 } else { 1792 needed += KERN_LWPSLOP; 1793 *oldlenp = needed; 1794 } 1795 error = 0; 1796 cleanup: 1797 sysctl_relock(); 1798 return (error); 1799 } 1800 1801 /* 1802 * sysctl helper routine for kern.forkfsleep node. Ensures that the 1803 * given value is not too large or two small, and is at least one 1804 * timer tick if not zero. 1805 */ 1806 static int 1807 sysctl_kern_forkfsleep(SYSCTLFN_ARGS) 1808 { 1809 /* userland sees value in ms, internally is in ticks */ 1810 extern int forkfsleep; /* defined in kern/kern_fork.c */ 1811 int error, timo, lsleep; 1812 struct sysctlnode node; 1813 1814 lsleep = forkfsleep * 1000 / hz; 1815 node = *rnode; 1816 node.sysctl_data = &lsleep; 1817 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1818 if (error || newp == NULL) 1819 return (error); 1820 1821 /* refuse negative values, and overly 'long time' */ 1822 if (lsleep < 0 || lsleep > MAXSLP * 1000) 1823 return (EINVAL); 1824 1825 timo = mstohz(lsleep); 1826 1827 /* if the interval is >0 ms && <1 tick, use 1 tick */ 1828 if (lsleep != 0 && timo == 0) 1829 forkfsleep = 1; 1830 else 1831 forkfsleep = timo; 1832 1833 return (0); 1834 } 1835 1836 /* 1837 * sysctl helper routine for kern.root_partition 1838 */ 1839 static int 1840 sysctl_kern_root_partition(SYSCTLFN_ARGS) 1841 { 1842 int rootpart = DISKPART(rootdev); 1843 struct sysctlnode node = *rnode; 1844 1845 node.sysctl_data = &rootpart; 1846 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 1847 } 1848 1849 /* 1850 * sysctl helper function for kern.drivers 1851 */ 1852 static int 1853 sysctl_kern_drivers(SYSCTLFN_ARGS) 1854 { 1855 int error; 1856 size_t buflen; 1857 struct kinfo_drivers kd; 1858 char *start, *where; 1859 const char *dname; 1860 int i; 1861 extern struct devsw_conv *devsw_conv; 1862 extern int max_devsw_convs; 1863 extern kmutex_t devsw_lock; 1864 1865 if (newp != NULL || namelen != 0) 1866 return (EINVAL); 1867 1868 start = where = oldp; 1869 buflen = *oldlenp; 1870 if (where == NULL) { 1871 *oldlenp = max_devsw_convs * sizeof kd; 1872 return 0; 1873 } 1874 1875 /* 1876 * An array of kinfo_drivers structures 1877 */ 1878 error = 0; 1879 sysctl_unlock(); 1880 mutex_enter(&devsw_lock); 1881 for (i = 0; i < max_devsw_convs; i++) { 1882 dname = devsw_conv[i].d_name; 1883 if (dname == NULL) 1884 continue; 1885 if (buflen < sizeof kd) { 1886 error = ENOMEM; 1887 break; 1888 } 1889 memset(&kd, 0, sizeof(kd)); 1890 kd.d_bmajor = devsw_conv[i].d_bmajor; 1891 kd.d_cmajor = devsw_conv[i].d_cmajor; 1892 strlcpy(kd.d_name, dname, sizeof kd.d_name); 1893 mutex_exit(&devsw_lock); 1894 error = dcopyout(l, &kd, where, sizeof kd); 1895 mutex_enter(&devsw_lock); 1896 if (error != 0) 1897 break; 1898 buflen -= sizeof kd; 1899 where += sizeof kd; 1900 } 1901 mutex_exit(&devsw_lock); 1902 sysctl_relock(); 1903 *oldlenp = where - start; 1904 return error; 1905 } 1906 1907 /* 1908 * sysctl helper function for kern.file2 1909 */ 1910 static int 1911 sysctl_kern_file2(SYSCTLFN_ARGS) 1912 { 1913 struct proc *p; 1914 struct file *fp, *tp, *np; 1915 struct filedesc *fd; 1916 struct kinfo_file kf; 1917 char *dp; 1918 u_int i, op; 1919 size_t len, needed, elem_size, out_size; 1920 int error, arg, elem_count; 1921 fdfile_t *ff; 1922 1923 if (namelen == 1 && name[0] == CTL_QUERY) 1924 return (sysctl_query(SYSCTLFN_CALL(rnode))); 1925 1926 if (namelen != 4) 1927 return (EINVAL); 1928 1929 error = 0; 1930 dp = oldp; 1931 len = (oldp != NULL) ? *oldlenp : 0; 1932 op = name[0]; 1933 arg = name[1]; 1934 elem_size = name[2]; 1935 elem_count = name[3]; 1936 out_size = MIN(sizeof(kf), elem_size); 1937 needed = 0; 1938 1939 if (elem_size < 1 || elem_count < 0) 1940 return (EINVAL); 1941 1942 switch (op) { 1943 case KERN_FILE_BYFILE: 1944 /* 1945 * doesn't use arg so it must be zero 1946 */ 1947 if (arg != 0) 1948 return (EINVAL); 1949 sysctl_unlock(); 1950 /* 1951 * allocate dummy file descriptor to make position in list 1952 */ 1953 if ((tp = fgetdummy()) == NULL) { 1954 sysctl_relock(); 1955 return ENOMEM; 1956 } 1957 mutex_enter(&filelist_lock); 1958 for (fp = LIST_FIRST(&filehead); fp != NULL; fp = np) { 1959 np = LIST_NEXT(fp, f_list); 1960 mutex_enter(&fp->f_lock); 1961 if (fp->f_count == 0) { 1962 mutex_exit(&fp->f_lock); 1963 continue; 1964 } 1965 /* 1966 * XXX Need to prevent that from being an alternative 1967 * XXX way for getting process information. 1968 */ 1969 if (kauth_authorize_generic(l->l_cred, 1970 KAUTH_GENERIC_CANSEE, fp->f_cred) != 0) { 1971 mutex_exit(&fp->f_lock); 1972 continue; 1973 } 1974 if (len >= elem_size && elem_count > 0) { 1975 fill_file(&kf, fp, NULL, 0, 0); 1976 LIST_INSERT_AFTER(fp, tp, f_list); 1977 mutex_exit(&fp->f_lock); 1978 mutex_exit(&filelist_lock); 1979 error = dcopyout(l, &kf, dp, out_size); 1980 mutex_enter(&filelist_lock); 1981 np = LIST_NEXT(tp, f_list); 1982 LIST_REMOVE(tp, f_list); 1983 if (error) { 1984 break; 1985 } 1986 dp += elem_size; 1987 len -= elem_size; 1988 } else { 1989 mutex_exit(&fp->f_lock); 1990 } 1991 if (elem_count > 0) { 1992 needed += elem_size; 1993 if (elem_count != INT_MAX) 1994 elem_count--; 1995 } 1996 } 1997 mutex_exit(&filelist_lock); 1998 fputdummy(tp); 1999 sysctl_relock(); 2000 break; 2001 case KERN_FILE_BYPID: 2002 if (arg < -1) 2003 /* -1 means all processes */ 2004 return (EINVAL); 2005 sysctl_unlock(); 2006 mutex_enter(proc_lock); 2007 LIST_FOREACH(p, &allproc, p_list) { 2008 if (p->p_stat == SIDL) { 2009 /* skip embryonic processes */ 2010 continue; 2011 } 2012 if (arg > 0 && p->p_pid != arg) { 2013 /* pick only the one we want */ 2014 /* XXX want 0 to mean "kernel files" */ 2015 continue; 2016 } 2017 mutex_enter(p->p_lock); 2018 error = kauth_authorize_process(l->l_cred, 2019 KAUTH_PROCESS_CANSEE, p, 2020 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_OPENFILES), 2021 NULL, NULL); 2022 mutex_exit(p->p_lock); 2023 if (error != 0) { 2024 continue; 2025 } 2026 2027 /* 2028 * Grab a hold on the process. 2029 */ 2030 if (!rw_tryenter(&p->p_reflock, RW_READER)) { 2031 continue; 2032 } 2033 mutex_exit(proc_lock); 2034 2035 /* XXX Do we need to check permission per file? */ 2036 fd = p->p_fd; 2037 mutex_enter(&fd->fd_lock); 2038 for (i = 0; i < fd->fd_nfiles; i++) { 2039 if ((ff = fd->fd_ofiles[i]) == NULL) { 2040 continue; 2041 } 2042 mutex_enter(&ff->ff_lock); 2043 if ((fp = ff->ff_file) == NULL) { 2044 mutex_exit(&ff->ff_lock); 2045 continue; 2046 } 2047 if (len >= elem_size && elem_count > 0) { 2048 mutex_enter(&fp->f_lock); 2049 fill_file(&kf, fp, ff, i, p->p_pid); 2050 mutex_exit(&fp->f_lock); 2051 mutex_exit(&ff->ff_lock); 2052 mutex_exit(&fd->fd_lock); 2053 error = dcopyout(l, &kf, dp, out_size); 2054 mutex_enter(&fd->fd_lock); 2055 if (error) 2056 break; 2057 dp += elem_size; 2058 len -= elem_size; 2059 } else { 2060 mutex_exit(&ff->ff_lock); 2061 } 2062 if (elem_count > 0) { 2063 needed += elem_size; 2064 if (elem_count != INT_MAX) 2065 elem_count--; 2066 } 2067 } 2068 mutex_exit(&fd->fd_lock); 2069 2070 /* 2071 * Release reference to process. 2072 */ 2073 mutex_enter(proc_lock); 2074 rw_exit(&p->p_reflock); 2075 } 2076 mutex_exit(proc_lock); 2077 sysctl_relock(); 2078 break; 2079 default: 2080 return (EINVAL); 2081 } 2082 2083 if (oldp == NULL) 2084 needed += KERN_FILESLOP * elem_size; 2085 *oldlenp = needed; 2086 2087 return (error); 2088 } 2089 2090 static void 2091 fill_file(struct kinfo_file *kp, const file_t *fp, const fdfile_t *ff, 2092 int i, pid_t pid) 2093 { 2094 2095 memset(kp, 0, sizeof(*kp)); 2096 2097 kp->ki_fileaddr = PTRTOUINT64(fp); 2098 kp->ki_flag = fp->f_flag; 2099 kp->ki_iflags = fp->f_iflags; 2100 kp->ki_ftype = fp->f_type; 2101 kp->ki_count = fp->f_count; 2102 kp->ki_msgcount = fp->f_msgcount; 2103 kp->ki_fucred = PTRTOUINT64(fp->f_cred); 2104 kp->ki_fuid = kauth_cred_geteuid(fp->f_cred); 2105 kp->ki_fgid = kauth_cred_getegid(fp->f_cred); 2106 kp->ki_fops = PTRTOUINT64(fp->f_ops); 2107 kp->ki_foffset = fp->f_offset; 2108 kp->ki_fdata = PTRTOUINT64(fp->f_data); 2109 2110 /* vnode information to glue this file to something */ 2111 if (fp->f_type == DTYPE_VNODE) { 2112 struct vnode *vp = (struct vnode *)fp->f_data; 2113 2114 kp->ki_vun = PTRTOUINT64(vp->v_un.vu_socket); 2115 kp->ki_vsize = vp->v_size; 2116 kp->ki_vtype = vp->v_type; 2117 kp->ki_vtag = vp->v_tag; 2118 kp->ki_vdata = PTRTOUINT64(vp->v_data); 2119 } 2120 2121 /* process information when retrieved via KERN_FILE_BYPID */ 2122 if (ff != NULL) { 2123 kp->ki_pid = pid; 2124 kp->ki_fd = i; 2125 kp->ki_ofileflags = ff->ff_exclose; 2126 kp->ki_usecount = ff->ff_refcnt; 2127 } 2128 } 2129 2130 static int 2131 sysctl_doeproc(SYSCTLFN_ARGS) 2132 { 2133 struct eproc *eproc; 2134 struct kinfo_proc2 *kproc2; 2135 struct kinfo_proc *dp; 2136 struct proc *p, *next, *marker; 2137 char *where, *dp2; 2138 int type, op, arg, error; 2139 u_int elem_size, elem_count; 2140 size_t buflen, needed; 2141 bool match, zombie, mmmbrains; 2142 2143 if (namelen == 1 && name[0] == CTL_QUERY) 2144 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2145 2146 dp = oldp; 2147 dp2 = where = oldp; 2148 buflen = where != NULL ? *oldlenp : 0; 2149 error = 0; 2150 needed = 0; 2151 type = rnode->sysctl_num; 2152 2153 if (type == KERN_PROC) { 2154 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 2155 return (EINVAL); 2156 op = name[0]; 2157 if (op != KERN_PROC_ALL) 2158 arg = name[1]; 2159 else 2160 arg = 0; /* Quell compiler warning */ 2161 elem_size = elem_count = 0; /* Ditto */ 2162 } else { 2163 if (namelen != 4) 2164 return (EINVAL); 2165 op = name[0]; 2166 arg = name[1]; 2167 elem_size = name[2]; 2168 elem_count = name[3]; 2169 } 2170 2171 sysctl_unlock(); 2172 2173 if (type == KERN_PROC) { 2174 eproc = kmem_alloc(sizeof(*eproc), KM_SLEEP); 2175 kproc2 = NULL; 2176 } else { 2177 eproc = NULL; 2178 kproc2 = kmem_alloc(sizeof(*kproc2), KM_SLEEP); 2179 } 2180 marker = kmem_alloc(sizeof(*marker), KM_SLEEP); 2181 2182 mutex_enter(proc_lock); 2183 mmmbrains = false; 2184 for (p = LIST_FIRST(&allproc);; p = next) { 2185 if (p == NULL) { 2186 if (!mmmbrains) { 2187 p = LIST_FIRST(&zombproc); 2188 mmmbrains = true; 2189 } 2190 if (p == NULL) 2191 break; 2192 } 2193 next = LIST_NEXT(p, p_list); 2194 2195 /* 2196 * Skip embryonic processes. 2197 */ 2198 if (p->p_stat == SIDL) 2199 continue; 2200 2201 mutex_enter(p->p_lock); 2202 error = kauth_authorize_process(l->l_cred, 2203 KAUTH_PROCESS_CANSEE, p, 2204 KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENTRY), NULL, NULL); 2205 if (error != 0) { 2206 mutex_exit(p->p_lock); 2207 continue; 2208 } 2209 2210 /* 2211 * TODO - make more efficient (see notes below). 2212 * do by session. 2213 */ 2214 switch (op) { 2215 case KERN_PROC_PID: 2216 /* could do this with just a lookup */ 2217 match = (p->p_pid == (pid_t)arg); 2218 break; 2219 2220 case KERN_PROC_PGRP: 2221 /* could do this by traversing pgrp */ 2222 match = (p->p_pgrp->pg_id == (pid_t)arg); 2223 break; 2224 2225 case KERN_PROC_SESSION: 2226 match = (p->p_session->s_sid == (pid_t)arg); 2227 break; 2228 2229 case KERN_PROC_TTY: 2230 match = true; 2231 if (arg == (int) KERN_PROC_TTY_REVOKE) { 2232 if ((p->p_lflag & PL_CONTROLT) == 0 || 2233 p->p_session->s_ttyp == NULL || 2234 p->p_session->s_ttyvp != NULL) { 2235 match = false; 2236 } 2237 } else if ((p->p_lflag & PL_CONTROLT) == 0 || 2238 p->p_session->s_ttyp == NULL) { 2239 if ((dev_t)arg != KERN_PROC_TTY_NODEV) { 2240 match = false; 2241 } 2242 } else if (p->p_session->s_ttyp->t_dev != (dev_t)arg) { 2243 match = false; 2244 } 2245 break; 2246 2247 case KERN_PROC_UID: 2248 match = (kauth_cred_geteuid(p->p_cred) == (uid_t)arg); 2249 break; 2250 2251 case KERN_PROC_RUID: 2252 match = (kauth_cred_getuid(p->p_cred) == (uid_t)arg); 2253 break; 2254 2255 case KERN_PROC_GID: 2256 match = (kauth_cred_getegid(p->p_cred) == (uid_t)arg); 2257 break; 2258 2259 case KERN_PROC_RGID: 2260 match = (kauth_cred_getgid(p->p_cred) == (uid_t)arg); 2261 break; 2262 2263 case KERN_PROC_ALL: 2264 match = true; 2265 /* allow everything */ 2266 break; 2267 2268 default: 2269 error = EINVAL; 2270 mutex_exit(p->p_lock); 2271 goto cleanup; 2272 } 2273 if (!match) { 2274 mutex_exit(p->p_lock); 2275 continue; 2276 } 2277 2278 /* 2279 * Grab a hold on the process. 2280 */ 2281 if (mmmbrains) { 2282 zombie = true; 2283 } else { 2284 zombie = !rw_tryenter(&p->p_reflock, RW_READER); 2285 } 2286 if (zombie) { 2287 LIST_INSERT_AFTER(p, marker, p_list); 2288 } 2289 2290 if (type == KERN_PROC) { 2291 if (buflen >= sizeof(struct kinfo_proc)) { 2292 fill_eproc(p, eproc, zombie); 2293 mutex_exit(p->p_lock); 2294 mutex_exit(proc_lock); 2295 error = dcopyout(l, p, &dp->kp_proc, 2296 sizeof(struct proc)); 2297 mutex_enter(proc_lock); 2298 if (error) { 2299 goto bah; 2300 } 2301 error = dcopyout(l, eproc, &dp->kp_eproc, 2302 sizeof(*eproc)); 2303 if (error) { 2304 goto bah; 2305 } 2306 dp++; 2307 buflen -= sizeof(struct kinfo_proc); 2308 } else { 2309 mutex_exit(p->p_lock); 2310 } 2311 needed += sizeof(struct kinfo_proc); 2312 } else { /* KERN_PROC2 */ 2313 if (buflen >= elem_size && elem_count > 0) { 2314 fill_kproc2(p, kproc2, zombie); 2315 mutex_exit(p->p_lock); 2316 mutex_exit(proc_lock); 2317 /* 2318 * Copy out elem_size, but not larger than 2319 * the size of a struct kinfo_proc2. 2320 */ 2321 error = dcopyout(l, kproc2, dp2, 2322 min(sizeof(*kproc2), elem_size)); 2323 mutex_enter(proc_lock); 2324 if (error) { 2325 goto bah; 2326 } 2327 dp2 += elem_size; 2328 buflen -= elem_size; 2329 elem_count--; 2330 } else { 2331 mutex_exit(p->p_lock); 2332 } 2333 needed += elem_size; 2334 } 2335 2336 /* 2337 * Release reference to process. 2338 */ 2339 if (zombie) { 2340 next = LIST_NEXT(marker, p_list); 2341 LIST_REMOVE(marker, p_list); 2342 } else { 2343 rw_exit(&p->p_reflock); 2344 } 2345 } 2346 mutex_exit(proc_lock); 2347 2348 if (where != NULL) { 2349 if (type == KERN_PROC) 2350 *oldlenp = (char *)dp - where; 2351 else 2352 *oldlenp = dp2 - where; 2353 if (needed > *oldlenp) { 2354 error = ENOMEM; 2355 goto out; 2356 } 2357 } else { 2358 needed += KERN_PROCSLOP; 2359 *oldlenp = needed; 2360 } 2361 if (kproc2) 2362 kmem_free(kproc2, sizeof(*kproc2)); 2363 if (eproc) 2364 kmem_free(eproc, sizeof(*eproc)); 2365 if (marker) 2366 kmem_free(marker, sizeof(*marker)); 2367 sysctl_relock(); 2368 return 0; 2369 bah: 2370 if (zombie) 2371 LIST_REMOVE(marker, p_list); 2372 else 2373 rw_exit(&p->p_reflock); 2374 cleanup: 2375 mutex_exit(proc_lock); 2376 out: 2377 if (kproc2) 2378 kmem_free(kproc2, sizeof(*kproc2)); 2379 if (eproc) 2380 kmem_free(eproc, sizeof(*eproc)); 2381 if (marker) 2382 kmem_free(marker, sizeof(*marker)); 2383 sysctl_relock(); 2384 return error; 2385 } 2386 2387 /* 2388 * sysctl helper routine for kern.proc_args pseudo-subtree. 2389 */ 2390 static int 2391 sysctl_kern_proc_args(SYSCTLFN_ARGS) 2392 { 2393 struct ps_strings pss; 2394 struct proc *p; 2395 size_t len, i; 2396 struct uio auio; 2397 struct iovec aiov; 2398 pid_t pid; 2399 int nargv, type, error, argvlen; 2400 char *arg; 2401 char **argv = NULL; 2402 char *tmp; 2403 struct vmspace *vmspace; 2404 vaddr_t psstr_addr; 2405 vaddr_t offsetn; 2406 vaddr_t offsetv; 2407 2408 if (namelen == 1 && name[0] == CTL_QUERY) 2409 return (sysctl_query(SYSCTLFN_CALL(rnode))); 2410 2411 if (newp != NULL || namelen != 2) 2412 return (EINVAL); 2413 pid = name[0]; 2414 type = name[1]; 2415 argv = NULL; 2416 argvlen = 0; 2417 2418 switch (type) { 2419 case KERN_PROC_ARGV: 2420 case KERN_PROC_NARGV: 2421 case KERN_PROC_ENV: 2422 case KERN_PROC_NENV: 2423 /* ok */ 2424 break; 2425 default: 2426 return (EINVAL); 2427 } 2428 2429 sysctl_unlock(); 2430 2431 /* check pid */ 2432 mutex_enter(proc_lock); 2433 if ((p = p_find(pid, PFIND_LOCKED)) == NULL) { 2434 error = EINVAL; 2435 goto out_locked; 2436 } 2437 mutex_enter(p->p_lock); 2438 2439 /* Check permission. */ 2440 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) 2441 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2442 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ARGS), NULL, NULL); 2443 else if (type == KERN_PROC_ENV || type == KERN_PROC_NENV) 2444 error = kauth_authorize_process(l->l_cred, KAUTH_PROCESS_CANSEE, 2445 p, KAUTH_ARG(KAUTH_REQ_PROCESS_CANSEE_ENV), NULL, NULL); 2446 else 2447 error = EINVAL; /* XXXGCC */ 2448 if (error) { 2449 mutex_exit(p->p_lock); 2450 goto out_locked; 2451 } 2452 2453 if (oldp == NULL) { 2454 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) 2455 *oldlenp = sizeof (int); 2456 else 2457 *oldlenp = ARG_MAX; /* XXX XXX XXX */ 2458 error = 0; 2459 mutex_exit(p->p_lock); 2460 goto out_locked; 2461 } 2462 2463 /* 2464 * Zombies don't have a stack, so we can't read their psstrings. 2465 * System processes also don't have a user stack. 2466 */ 2467 if (P_ZOMBIE(p) || (p->p_flag & PK_SYSTEM) != 0) { 2468 error = EINVAL; 2469 mutex_exit(p->p_lock); 2470 goto out_locked; 2471 } 2472 2473 /* 2474 * Lock the process down in memory. 2475 */ 2476 psstr_addr = (vaddr_t)p->p_psstr; 2477 if (type == KERN_PROC_ARGV || type == KERN_PROC_NARGV) { 2478 offsetn = p->p_psnargv; 2479 offsetv = p->p_psargv; 2480 } else { 2481 offsetn = p->p_psnenv; 2482 offsetv = p->p_psenv; 2483 } 2484 vmspace = p->p_vmspace; 2485 uvmspace_addref(vmspace); 2486 mutex_exit(p->p_lock); 2487 mutex_exit(proc_lock); 2488 2489 /* 2490 * Allocate a temporary buffer to hold the arguments. 2491 */ 2492 arg = kmem_alloc(PAGE_SIZE, KM_SLEEP); 2493 2494 /* 2495 * Read in the ps_strings structure. 2496 */ 2497 aiov.iov_base = &pss; 2498 aiov.iov_len = sizeof(pss); 2499 auio.uio_iov = &aiov; 2500 auio.uio_iovcnt = 1; 2501 auio.uio_offset = psstr_addr; 2502 auio.uio_resid = sizeof(pss); 2503 auio.uio_rw = UIO_READ; 2504 UIO_SETUP_SYSSPACE(&auio); 2505 error = uvm_io(&vmspace->vm_map, &auio); 2506 if (error) 2507 goto done; 2508 2509 memcpy(&nargv, (char *)&pss + offsetn, sizeof(nargv)); 2510 if (type == KERN_PROC_NARGV || type == KERN_PROC_NENV) { 2511 error = dcopyout(l, &nargv, oldp, sizeof(nargv)); 2512 *oldlenp = sizeof(nargv); 2513 goto done; 2514 } 2515 /* 2516 * Now read the address of the argument vector. 2517 */ 2518 switch (type) { 2519 case KERN_PROC_ARGV: 2520 /* FALLTHROUGH */ 2521 case KERN_PROC_ENV: 2522 memcpy(&tmp, (char *)&pss + offsetv, sizeof(tmp)); 2523 break; 2524 default: 2525 error = EINVAL; 2526 goto done; 2527 } 2528 2529 #ifdef COMPAT_NETBSD32 2530 if (p->p_flag & PK_32) 2531 len = sizeof(netbsd32_charp) * nargv; 2532 else 2533 #endif 2534 len = sizeof(char *) * nargv; 2535 2536 if ((argvlen = len) != 0) 2537 argv = kmem_alloc(len, KM_SLEEP); 2538 2539 aiov.iov_base = argv; 2540 aiov.iov_len = len; 2541 auio.uio_iov = &aiov; 2542 auio.uio_iovcnt = 1; 2543 auio.uio_offset = (off_t)(unsigned long)tmp; 2544 auio.uio_resid = len; 2545 auio.uio_rw = UIO_READ; 2546 UIO_SETUP_SYSSPACE(&auio); 2547 error = uvm_io(&vmspace->vm_map, &auio); 2548 if (error) 2549 goto done; 2550 2551 /* 2552 * Now copy each string. 2553 */ 2554 len = 0; /* bytes written to user buffer */ 2555 for (i = 0; i < nargv; i++) { 2556 int finished = 0; 2557 vaddr_t base; 2558 size_t xlen; 2559 int j; 2560 2561 #ifdef COMPAT_NETBSD32 2562 if (p->p_flag & PK_32) { 2563 netbsd32_charp *argv32; 2564 2565 argv32 = (netbsd32_charp *)argv; 2566 base = (vaddr_t)NETBSD32PTR64(argv32[i]); 2567 } else 2568 #endif 2569 base = (vaddr_t)argv[i]; 2570 2571 /* 2572 * The program has messed around with its arguments, 2573 * possibly deleting some, and replacing them with 2574 * NULL's. Treat this as the last argument and not 2575 * a failure. 2576 */ 2577 if (base == 0) 2578 break; 2579 2580 while (!finished) { 2581 xlen = PAGE_SIZE - (base & PAGE_MASK); 2582 2583 aiov.iov_base = arg; 2584 aiov.iov_len = PAGE_SIZE; 2585 auio.uio_iov = &aiov; 2586 auio.uio_iovcnt = 1; 2587 auio.uio_offset = base; 2588 auio.uio_resid = xlen; 2589 auio.uio_rw = UIO_READ; 2590 UIO_SETUP_SYSSPACE(&auio); 2591 error = uvm_io(&vmspace->vm_map, &auio); 2592 if (error) 2593 goto done; 2594 2595 /* Look for the end of the string */ 2596 for (j = 0; j < xlen; j++) { 2597 if (arg[j] == '\0') { 2598 xlen = j + 1; 2599 finished = 1; 2600 break; 2601 } 2602 } 2603 2604 /* Check for user buffer overflow */ 2605 if (len + xlen > *oldlenp) { 2606 finished = 1; 2607 if (len > *oldlenp) 2608 xlen = 0; 2609 else 2610 xlen = *oldlenp - len; 2611 } 2612 2613 /* Copyout the page */ 2614 error = dcopyout(l, arg, (char *)oldp + len, xlen); 2615 if (error) 2616 goto done; 2617 2618 len += xlen; 2619 base += xlen; 2620 } 2621 } 2622 *oldlenp = len; 2623 2624 done: 2625 if (argvlen != 0) 2626 kmem_free(argv, argvlen); 2627 uvmspace_free(vmspace); 2628 kmem_free(arg, PAGE_SIZE); 2629 sysctl_relock(); 2630 return error; 2631 2632 out_locked: 2633 mutex_exit(proc_lock); 2634 sysctl_relock(); 2635 return error; 2636 } 2637 2638 static int 2639 sysctl_security_setidcore(SYSCTLFN_ARGS) 2640 { 2641 int newsize, error; 2642 struct sysctlnode node; 2643 2644 node = *rnode; 2645 node.sysctl_data = &newsize; 2646 newsize = *(int *)rnode->sysctl_data; 2647 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2648 if (error || newp == NULL) 2649 return error; 2650 2651 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2652 0, NULL, NULL, NULL)) 2653 return (EPERM); 2654 2655 *(int *)rnode->sysctl_data = newsize; 2656 2657 return 0; 2658 } 2659 2660 static int 2661 sysctl_security_setidcorename(SYSCTLFN_ARGS) 2662 { 2663 int error; 2664 char *newsetidcorename; 2665 struct sysctlnode node; 2666 2667 newsetidcorename = PNBUF_GET(); 2668 node = *rnode; 2669 node.sysctl_data = newsetidcorename; 2670 memcpy(node.sysctl_data, rnode->sysctl_data, MAXPATHLEN); 2671 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2672 if (error || newp == NULL) { 2673 goto out; 2674 } 2675 if (kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_SETIDCORE, 2676 0, NULL, NULL, NULL)) { 2677 error = EPERM; 2678 goto out; 2679 } 2680 if (strlen(newsetidcorename) == 0) { 2681 error = EINVAL; 2682 goto out; 2683 } 2684 memcpy(rnode->sysctl_data, node.sysctl_data, MAXPATHLEN); 2685 out: 2686 PNBUF_PUT(newsetidcorename); 2687 return error; 2688 } 2689 2690 /* 2691 * sysctl helper routine for kern.cp_id node. Maps cpus to their 2692 * cpuids. 2693 */ 2694 static int 2695 sysctl_kern_cpid(SYSCTLFN_ARGS) 2696 { 2697 struct sysctlnode node = *rnode; 2698 uint64_t *cp_id = NULL; 2699 int error, n = ncpu; 2700 struct cpu_info *ci; 2701 CPU_INFO_ITERATOR cii; 2702 2703 /* 2704 * Here you may either retrieve a single cpu id or the whole 2705 * set. The size you get back when probing depends on what 2706 * you ask for. 2707 */ 2708 switch (namelen) { 2709 case 0: 2710 node.sysctl_size = n * sizeof(uint64_t); 2711 n = -2; /* ALL */ 2712 break; 2713 case 1: 2714 if (name[0] < 0 || name[0] >= n) 2715 return (ENOENT); /* ENOSUCHPROCESSOR */ 2716 node.sysctl_size = sizeof(uint64_t); 2717 n = name[0]; 2718 /* 2719 * adjust these so that sysctl_lookup() will be happy 2720 */ 2721 name++; 2722 namelen--; 2723 break; 2724 default: 2725 return (EINVAL); 2726 } 2727 2728 cp_id = kmem_alloc(node.sysctl_size, KM_SLEEP); 2729 if (cp_id == NULL) 2730 return (ENOMEM); 2731 node.sysctl_data = cp_id; 2732 memset(cp_id, 0, node.sysctl_size); 2733 2734 for (CPU_INFO_FOREACH(cii, ci)) { 2735 if (n <= 0) 2736 cp_id[0] = cpu_index(ci); 2737 /* 2738 * if a specific processor was requested and we just 2739 * did it, we're done here 2740 */ 2741 if (n == 0) 2742 break; 2743 /* 2744 * if doing "all", skip to next cp_id slot for next processor 2745 */ 2746 if (n == -2) 2747 cp_id++; 2748 /* 2749 * if we're doing a specific processor, we're one 2750 * processor closer 2751 */ 2752 if (n > 0) 2753 n--; 2754 } 2755 2756 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2757 kmem_free(node.sysctl_data, node.sysctl_size); 2758 return (error); 2759 } 2760 2761 /* 2762 * sysctl helper routine for hw.usermem and hw.usermem64. Values are 2763 * calculate on the fly taking into account integer overflow and the 2764 * current wired count. 2765 */ 2766 static int 2767 sysctl_hw_usermem(SYSCTLFN_ARGS) 2768 { 2769 u_int ui; 2770 u_quad_t uq; 2771 struct sysctlnode node; 2772 2773 node = *rnode; 2774 switch (rnode->sysctl_num) { 2775 case HW_USERMEM: 2776 if ((ui = physmem - uvmexp.wired) > (UINT_MAX / PAGE_SIZE)) 2777 ui = UINT_MAX; 2778 else 2779 ui *= PAGE_SIZE; 2780 node.sysctl_data = &ui; 2781 break; 2782 case HW_USERMEM64: 2783 uq = (u_quad_t)(physmem - uvmexp.wired) * PAGE_SIZE; 2784 node.sysctl_data = &uq; 2785 break; 2786 default: 2787 return (EINVAL); 2788 } 2789 2790 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2791 } 2792 2793 /* 2794 * sysctl helper routine for kern.cnmagic node. Pulls the old value 2795 * out, encoded, and stuffs the new value in for decoding. 2796 */ 2797 static int 2798 sysctl_hw_cnmagic(SYSCTLFN_ARGS) 2799 { 2800 char magic[CNS_LEN]; 2801 int error; 2802 struct sysctlnode node; 2803 2804 if (oldp) 2805 cn_get_magic(magic, CNS_LEN); 2806 node = *rnode; 2807 node.sysctl_data = &magic[0]; 2808 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2809 if (error || newp == NULL) 2810 return (error); 2811 2812 return (cn_set_magic(magic)); 2813 } 2814 2815 /* 2816 * ******************************************************************** 2817 * section 3: public helper routines that are used for more than one 2818 * node 2819 * ******************************************************************** 2820 */ 2821 2822 /* 2823 * sysctl helper routine for the kern.root_device node and some ports' 2824 * machdep.root_device nodes. 2825 */ 2826 int 2827 sysctl_root_device(SYSCTLFN_ARGS) 2828 { 2829 struct sysctlnode node; 2830 2831 node = *rnode; 2832 node.sysctl_data = root_device->dv_xname; 2833 node.sysctl_size = strlen(device_xname(root_device)) + 1; 2834 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2835 } 2836 2837 /* 2838 * sysctl helper routine for kern.consdev, dependent on the current 2839 * state of the console. Also used for machdep.console_device on some 2840 * ports. 2841 */ 2842 int 2843 sysctl_consdev(SYSCTLFN_ARGS) 2844 { 2845 dev_t consdev; 2846 struct sysctlnode node; 2847 2848 if (cn_tab != NULL) 2849 consdev = cn_tab->cn_dev; 2850 else 2851 consdev = NODEV; 2852 node = *rnode; 2853 node.sysctl_data = &consdev; 2854 node.sysctl_size = sizeof(consdev); 2855 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 2856 } 2857 2858 /* 2859 * ******************************************************************** 2860 * section 4: support for some helpers 2861 * ******************************************************************** 2862 */ 2863 2864 /* 2865 * Fill in a kinfo_proc2 structure for the specified process. 2866 */ 2867 static void 2868 fill_kproc2(struct proc *p, struct kinfo_proc2 *ki, bool zombie) 2869 { 2870 struct tty *tp; 2871 struct lwp *l, *l2; 2872 struct timeval ut, st, rt; 2873 sigset_t ss1, ss2; 2874 struct rusage ru; 2875 struct vmspace *vm; 2876 int tmp; 2877 2878 KASSERT(mutex_owned(proc_lock)); 2879 KASSERT(mutex_owned(p->p_lock)); 2880 2881 sigemptyset(&ss1); 2882 sigemptyset(&ss2); 2883 memset(ki, 0, sizeof(*ki)); 2884 2885 ki->p_paddr = PTRTOUINT64(p); 2886 ki->p_fd = PTRTOUINT64(p->p_fd); 2887 ki->p_cwdi = PTRTOUINT64(p->p_cwdi); 2888 ki->p_stats = PTRTOUINT64(p->p_stats); 2889 ki->p_limit = PTRTOUINT64(p->p_limit); 2890 ki->p_vmspace = PTRTOUINT64(p->p_vmspace); 2891 ki->p_sigacts = PTRTOUINT64(p->p_sigacts); 2892 ki->p_sess = PTRTOUINT64(p->p_session); 2893 ki->p_tsess = 0; /* may be changed if controlling tty below */ 2894 ki->p_ru = PTRTOUINT64(&p->p_stats->p_ru); 2895 ki->p_eflag = 0; 2896 ki->p_exitsig = p->p_exitsig; 2897 ki->p_flag = sysctl_map_flags(sysctl_flagmap, p->p_flag); 2898 ki->p_flag |= sysctl_map_flags(sysctl_sflagmap, p->p_sflag); 2899 ki->p_flag |= sysctl_map_flags(sysctl_slflagmap, p->p_slflag); 2900 ki->p_flag |= sysctl_map_flags(sysctl_lflagmap, p->p_lflag); 2901 ki->p_flag |= sysctl_map_flags(sysctl_stflagmap, p->p_stflag); 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_uid = kauth_cred_geteuid(p->p_cred); 2908 ki->p_ruid = kauth_cred_getuid(p->p_cred); 2909 ki->p_gid = kauth_cred_getegid(p->p_cred); 2910 ki->p_rgid = kauth_cred_getgid(p->p_cred); 2911 ki->p_svuid = kauth_cred_getsvuid(p->p_cred); 2912 ki->p_svgid = kauth_cred_getsvgid(p->p_cred); 2913 ki->p_ngroups = kauth_cred_ngroups(p->p_cred); 2914 kauth_cred_getgroups(p->p_cred, ki->p_groups, 2915 min(ki->p_ngroups, sizeof(ki->p_groups) / sizeof(ki->p_groups[0])), 2916 UIO_SYSSPACE); 2917 2918 ki->p_uticks = p->p_uticks; 2919 ki->p_sticks = p->p_sticks; 2920 ki->p_iticks = p->p_iticks; 2921 ki->p_tpgid = NO_PGID; /* may be changed if controlling tty below */ 2922 ki->p_tracep = PTRTOUINT64(p->p_tracep); 2923 ki->p_traceflag = p->p_traceflag; 2924 2925 memcpy(&ki->p_sigignore, &p->p_sigctx.ps_sigignore,sizeof(ki_sigset_t)); 2926 memcpy(&ki->p_sigcatch, &p->p_sigctx.ps_sigcatch, sizeof(ki_sigset_t)); 2927 2928 ki->p_cpticks = 0; 2929 ki->p_pctcpu = p->p_pctcpu; 2930 ki->p_estcpu = 0; 2931 ki->p_stat = p->p_stat; /* Will likely be overridden by LWP status */ 2932 ki->p_realstat = p->p_stat; 2933 ki->p_nice = p->p_nice; 2934 ki->p_xstat = p->p_xstat; 2935 ki->p_acflag = p->p_acflag; 2936 2937 strncpy(ki->p_comm, p->p_comm, 2938 min(sizeof(ki->p_comm), sizeof(p->p_comm))); 2939 2940 ki->p_nlwps = p->p_nlwps; 2941 ki->p_realflag = ki->p_flag; 2942 2943 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 2944 vm = p->p_vmspace; 2945 ki->p_vm_rssize = vm_resident_count(vm); 2946 ki->p_vm_tsize = vm->vm_tsize; 2947 ki->p_vm_dsize = vm->vm_dsize; 2948 ki->p_vm_ssize = vm->vm_ssize; 2949 2950 /* Pick a "representative" LWP */ 2951 l = proc_representative_lwp(p, &tmp, 1); 2952 lwp_lock(l); 2953 ki->p_nrlwps = tmp; 2954 ki->p_forw = 0; 2955 ki->p_back = 0; 2956 ki->p_addr = PTRTOUINT64(l->l_addr); 2957 ki->p_stat = l->l_stat; 2958 ki->p_flag |= sysctl_map_flags(sysctl_lwpflagmap, l->l_flag); 2959 ki->p_swtime = l->l_swtime; 2960 ki->p_slptime = l->l_slptime; 2961 if (l->l_stat == LSONPROC) 2962 ki->p_schedflags = l->l_cpu->ci_schedstate.spc_flags; 2963 else 2964 ki->p_schedflags = 0; 2965 ki->p_holdcnt = l->l_holdcnt; 2966 ki->p_priority = lwp_eprio(l); 2967 ki->p_usrpri = l->l_priority; 2968 if (l->l_wchan) 2969 strncpy(ki->p_wmesg, l->l_wmesg, sizeof(ki->p_wmesg)); 2970 ki->p_wchan = PTRTOUINT64(l->l_wchan); 2971 ki->p_cpuid = cpu_index(l->l_cpu); 2972 lwp_unlock(l); 2973 LIST_FOREACH(l, &p->p_lwps, l_sibling) { 2974 /* This is hardly correct, but... */ 2975 sigplusset(&l->l_sigpend.sp_set, &ss1); 2976 sigplusset(&l->l_sigmask, &ss2); 2977 ki->p_cpticks += l->l_cpticks; 2978 ki->p_pctcpu += l->l_pctcpu; 2979 ki->p_estcpu += l->l_estcpu; 2980 } 2981 } 2982 sigplusset(&p->p_sigpend.sp_set, &ss2); 2983 memcpy(&ki->p_siglist, &ss1, sizeof(ki_sigset_t)); 2984 memcpy(&ki->p_sigmask, &ss2, sizeof(ki_sigset_t)); 2985 2986 if (p->p_session != NULL) { 2987 ki->p_sid = p->p_session->s_sid; 2988 ki->p__pgid = p->p_pgrp->pg_id; 2989 if (p->p_session->s_ttyvp) 2990 ki->p_eflag |= EPROC_CTTY; 2991 if (SESS_LEADER(p)) 2992 ki->p_eflag |= EPROC_SLEADER; 2993 strncpy(ki->p_login, p->p_session->s_login, 2994 min(sizeof ki->p_login - 1, sizeof p->p_session->s_login)); 2995 ki->p_jobc = p->p_pgrp->pg_jobc; 2996 if ((p->p_lflag & PL_CONTROLT) && (tp = p->p_session->s_ttyp)) { 2997 ki->p_tdev = tp->t_dev; 2998 ki->p_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 2999 ki->p_tsess = PTRTOUINT64(tp->t_session); 3000 } else { 3001 ki->p_tdev = NODEV; 3002 } 3003 } 3004 3005 if (!P_ZOMBIE(p) && !zombie) { 3006 ki->p_uvalid = 1; 3007 ki->p_ustart_sec = p->p_stats->p_start.tv_sec; 3008 ki->p_ustart_usec = p->p_stats->p_start.tv_usec; 3009 3010 calcru(p, &ut, &st, NULL, &rt); 3011 ki->p_rtime_sec = rt.tv_sec; 3012 ki->p_rtime_usec = rt.tv_usec; 3013 ki->p_uutime_sec = ut.tv_sec; 3014 ki->p_uutime_usec = ut.tv_usec; 3015 ki->p_ustime_sec = st.tv_sec; 3016 ki->p_ustime_usec = st.tv_usec; 3017 3018 memcpy(&ru, &p->p_stats->p_ru, sizeof(ru)); 3019 ki->p_uru_nvcsw = 0; 3020 ki->p_uru_nivcsw = 0; 3021 LIST_FOREACH(l2, &p->p_lwps, l_sibling) { 3022 ki->p_uru_nvcsw += (l2->l_ncsw - l2->l_nivcsw); 3023 ki->p_uru_nivcsw += l2->l_nivcsw; 3024 ruadd(&ru, &l2->l_ru); 3025 } 3026 ki->p_uru_maxrss = ru.ru_maxrss; 3027 ki->p_uru_ixrss = ru.ru_ixrss; 3028 ki->p_uru_idrss = ru.ru_idrss; 3029 ki->p_uru_isrss = ru.ru_isrss; 3030 ki->p_uru_minflt = ru.ru_minflt; 3031 ki->p_uru_majflt = ru.ru_majflt; 3032 ki->p_uru_nswap = ru.ru_nswap; 3033 ki->p_uru_inblock = ru.ru_inblock; 3034 ki->p_uru_oublock = ru.ru_oublock; 3035 ki->p_uru_msgsnd = ru.ru_msgsnd; 3036 ki->p_uru_msgrcv = ru.ru_msgrcv; 3037 ki->p_uru_nsignals = ru.ru_nsignals; 3038 3039 timeradd(&p->p_stats->p_cru.ru_utime, 3040 &p->p_stats->p_cru.ru_stime, &ut); 3041 ki->p_uctime_sec = ut.tv_sec; 3042 ki->p_uctime_usec = ut.tv_usec; 3043 } 3044 } 3045 3046 /* 3047 * Fill in a kinfo_lwp structure for the specified lwp. 3048 */ 3049 static void 3050 fill_lwp(struct lwp *l, struct kinfo_lwp *kl) 3051 { 3052 struct proc *p = l->l_proc; 3053 struct timeval tv; 3054 3055 KASSERT(lwp_locked(l, NULL)); 3056 3057 kl->l_forw = 0; 3058 kl->l_back = 0; 3059 kl->l_laddr = PTRTOUINT64(l); 3060 kl->l_addr = PTRTOUINT64(l->l_addr); 3061 kl->l_stat = l->l_stat; 3062 kl->l_lid = l->l_lid; 3063 kl->l_flag = sysctl_map_flags(sysctl_lwpprflagmap, l->l_prflag); 3064 3065 kl->l_swtime = l->l_swtime; 3066 kl->l_slptime = l->l_slptime; 3067 if (l->l_stat == LSONPROC) 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 = lwp_eprio(l); 3073 kl->l_usrpri = l->l_priority; 3074 if (l->l_wchan) 3075 strncpy(kl->l_wmesg, l->l_wmesg, sizeof(kl->l_wmesg)); 3076 kl->l_wchan = PTRTOUINT64(l->l_wchan); 3077 kl->l_cpuid = cpu_index(l->l_cpu); 3078 bintime2timeval(&l->l_rtime, &tv); 3079 kl->l_rtime_sec = tv.tv_sec; 3080 kl->l_rtime_usec = tv.tv_usec; 3081 kl->l_cpticks = l->l_cpticks; 3082 kl->l_pctcpu = l->l_pctcpu; 3083 kl->l_pid = p->p_pid; 3084 if (l->l_name == NULL) 3085 kl->l_name[0] = '\0'; 3086 else 3087 strlcpy(kl->l_name, l->l_name, sizeof(kl->l_name)); 3088 } 3089 3090 /* 3091 * Fill in an eproc structure for the specified process. 3092 */ 3093 void 3094 fill_eproc(struct proc *p, struct eproc *ep, bool zombie) 3095 { 3096 struct tty *tp; 3097 struct lwp *l; 3098 3099 KASSERT(mutex_owned(proc_lock)); 3100 KASSERT(mutex_owned(p->p_lock)); 3101 3102 memset(ep, 0, sizeof(*ep)); 3103 3104 ep->e_paddr = p; 3105 ep->e_sess = p->p_session; 3106 if (p->p_cred) { 3107 kauth_cred_topcred(p->p_cred, &ep->e_pcred); 3108 kauth_cred_toucred(p->p_cred, &ep->e_ucred); 3109 } 3110 if (p->p_stat != SIDL && !P_ZOMBIE(p) && !zombie) { 3111 struct vmspace *vm = p->p_vmspace; 3112 3113 ep->e_vm.vm_rssize = vm_resident_count(vm); 3114 ep->e_vm.vm_tsize = vm->vm_tsize; 3115 ep->e_vm.vm_dsize = vm->vm_dsize; 3116 ep->e_vm.vm_ssize = vm->vm_ssize; 3117 3118 /* Pick a "representative" LWP */ 3119 l = proc_representative_lwp(p, NULL, 1); 3120 lwp_lock(l); 3121 if (l->l_wchan) 3122 strncpy(ep->e_wmesg, l->l_wmesg, WMESGLEN); 3123 lwp_unlock(l); 3124 } 3125 if (p->p_pptr) 3126 ep->e_ppid = p->p_pptr->p_pid; 3127 if (p->p_pgrp && p->p_session) { 3128 ep->e_pgid = p->p_pgrp->pg_id; 3129 ep->e_jobc = p->p_pgrp->pg_jobc; 3130 ep->e_sid = p->p_session->s_sid; 3131 if ((p->p_lflag & PL_CONTROLT) && 3132 (tp = ep->e_sess->s_ttyp)) { 3133 ep->e_tdev = tp->t_dev; 3134 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PGID; 3135 ep->e_tsess = tp->t_session; 3136 } else 3137 ep->e_tdev = NODEV; 3138 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 3139 if (SESS_LEADER(p)) 3140 ep->e_flag |= EPROC_SLEADER; 3141 strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME); 3142 } 3143 ep->e_xsize = ep->e_xrssize = 0; 3144 ep->e_xccount = ep->e_xswrss = 0; 3145 } 3146 3147 u_int 3148 sysctl_map_flags(const u_int *map, u_int word) 3149 { 3150 u_int rv; 3151 3152 for (rv = 0; *map != 0; map += 2) 3153 if ((word & map[0]) != 0) 3154 rv |= map[1]; 3155 3156 return rv; 3157 } 3158
Indexes created Sun Sep 21 20:09:37 GMT 2025