1 /* $NetBSD: sysctl.h,v 1.241 2025/07/13 20:13:39 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Mike Karels at Berkeley Software Design, Inc. 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 35 */ 36 37 #ifndef _SYS_SYSCTL_H_ 38 #define _SYS_SYSCTL_H_ 39 40 #include <sys/param.h> /* precautionary upon removal from ucred.h */ 41 #include <sys/proc.h> /* Needed for things like P_ZOMBIE() and LW_SINTR */ 42 #include <uvm/uvm_param.h> 43 44 #if defined(_KERNEL) || defined(_KMEMUSER) 45 /* 46 * These are for the eproc structure defined below. 47 */ 48 #include <sys/time.h> 49 #include <sys/ucred.h> 50 #include <sys/ucontext.h> 51 #include <sys/mallocvar.h> 52 #include <uvm/uvm_extern.h> 53 #endif 54 55 56 /* For offsetof() */ 57 #if defined(_KERNEL) || defined(_STANDALONE) 58 #include <sys/systm.h> 59 #else 60 #include <stddef.h> 61 #include <stdbool.h> 62 #endif 63 64 /* 65 * Definitions for sysctl call. The sysctl call uses a hierarchical name 66 * for objects that can be examined or modified. The name is expressed as 67 * a sequence of integers. Like a file path name, the meaning of each 68 * component depends on its place in the hierarchy. The top-level and kern 69 * identifiers are defined here, and other identifiers are defined in the 70 * respective subsystem header files. 71 */ 72 73 struct sysctlnode; 74 75 #define CTL_MAXNAME 12 /* largest number of components supported */ 76 #define SYSCTL_NAMELEN 32 /* longest name allowed for a node */ 77 78 #define CREATE_BASE (1024) /* start of dynamic mib allocation */ 79 #define SYSCTL_DEFSIZE 8 /* initial size of a child set */ 80 81 /* 82 * Each subsystem defined by sysctl defines a list of variables 83 * for that subsystem. Each name is either a node with further 84 * levels defined below it, or it is a leaf of some particular 85 * type given below. Each sysctl level defines a set of name/type 86 * pairs to be used by sysctl(1) in manipulating the subsystem. 87 */ 88 struct ctlname { 89 const char *ctl_name; /* subsystem name */ 90 int ctl_type; /* type of name */ 91 }; 92 #define CTLTYPE_NODE 1 /* name is a node */ 93 #define CTLTYPE_INT 2 /* name describes an integer */ 94 #define CTLTYPE_STRING 3 /* name describes a string */ 95 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */ 96 #define CTLTYPE_STRUCT 5 /* name describes a structure */ 97 #define CTLTYPE_BOOL 6 /* name describes a bool */ 98 99 #ifdef _LP64 100 #define CTLTYPE_LONG CTLTYPE_QUAD 101 #else 102 #define CTLTYPE_LONG CTLTYPE_INT 103 #endif 104 105 /* 106 * Flags that apply to each node, governing access and other features 107 */ 108 #define CTLFLAG_READONLY 0x00000000 109 /* #define CTLFLAG_UNUSED1 0x00000010 */ 110 /* #define CTLFLAG_UNUSED2 0x00000020 */ 111 /* #define CTLFLAG_READ* 0x00000040 */ 112 #define CTLFLAG_READWRITE 0x00000070 113 #define CTLFLAG_ANYWRITE 0x00000080 114 #define CTLFLAG_PRIVATE 0x00000100 115 #define CTLFLAG_PERMANENT 0x00000200 116 #define CTLFLAG_OWNDATA 0x00000400 117 #define CTLFLAG_IMMEDIATE 0x00000800 118 #define CTLFLAG_HEX 0x00001000 119 #define CTLFLAG_ROOT 0x00002000 120 #define CTLFLAG_ANYNUMBER 0x00004000 121 #define CTLFLAG_HIDDEN 0x00008000 122 #define CTLFLAG_ALIAS 0x00010000 123 #define CTLFLAG_MMAP 0x00020000 124 #define CTLFLAG_OWNDESC 0x00040000 125 #define CTLFLAG_UNSIGNED 0x00080000 126 127 /* 128 * sysctl API version 129 */ 130 #define SYSCTL_VERS_MASK 0xff000000 131 #define SYSCTL_VERS_0 0x00000000 132 #define SYSCTL_VERS_1 0x01000000 133 #define SYSCTL_VERSION SYSCTL_VERS_1 134 #define SYSCTL_VERS(f) ((f) & SYSCTL_VERS_MASK) 135 136 /* 137 * Flags that can be set by a create request from user-space 138 */ 139 #define SYSCTL_USERFLAGS (CTLFLAG_READWRITE|\ 140 CTLFLAG_ANYWRITE|\ 141 CTLFLAG_PRIVATE|\ 142 CTLFLAG_OWNDATA|\ 143 CTLFLAG_IMMEDIATE|\ 144 CTLFLAG_HEX|\ 145 CTLFLAG_HIDDEN) 146 147 /* 148 * Accessor macros 149 */ 150 #define SYSCTL_TYPEMASK 0x0000000f 151 #define SYSCTL_TYPE(x) ((x) & SYSCTL_TYPEMASK) 152 #define SYSCTL_FLAGMASK 0x00fffff0 153 #define SYSCTL_FLAGS(x) ((x) & SYSCTL_FLAGMASK) 154 155 /* 156 * Meta-identifiers 157 */ 158 #define CTL_EOL (-1) /* end of createv/destroyv list */ 159 #define CTL_QUERY (-2) /* enumerates children of a node */ 160 #define CTL_CREATE (-3) /* node create request */ 161 #define CTL_CREATESYM (-4) /* node create request with symbol */ 162 #define CTL_DESTROY (-5) /* node destroy request */ 163 #define CTL_MMAP (-6) /* mmap request */ 164 #define CTL_DESCRIBE (-7) /* get node descriptions */ 165 166 /* 167 * Top-level identifiers 168 */ 169 #define CTL_UNSPEC 0 /* unused */ 170 #define CTL_KERN 1 /* "high kernel": proc, limits */ 171 #define CTL_VM 2 /* virtual memory */ 172 #define CTL_VFS 3 /* file system, mount type is next */ 173 #define CTL_NET 4 /* network, see socket.h */ 174 #define CTL_DEBUG 5 /* debugging parameters */ 175 #define CTL_HW 6 /* generic CPU/io */ 176 #define CTL_MACHDEP 7 /* machine dependent */ 177 #define CTL_USER 8 /* user-level */ 178 #define CTL_DDB 9 /* in-kernel debugger */ 179 #define CTL_PROC 10 /* per-proc attr */ 180 #define CTL_VENDOR 11 /* vendor-specific data */ 181 #define CTL_EMUL 12 /* emulation-specific data */ 182 #define CTL_SECURITY 13 /* security */ 183 184 /* 185 * The "vendor" toplevel name is to be used by vendors who wish to 186 * have their own private MIB tree. If you do that, please use 187 * vendor.<yourname>.* 188 */ 189 190 /* 191 * CTL_KERN identifiers 192 */ 193 #define KERN_OSTYPE 1 /* string: system version */ 194 #define KERN_OSRELEASE 2 /* string: system release */ 195 #define KERN_OSREV 3 /* int: system revision */ 196 #define KERN_VERSION 4 /* string: compile time info */ 197 #define KERN_MAXVNODES 5 /* int: max vnodes */ 198 #define KERN_MAXPROC 6 /* int: max processes */ 199 #define KERN_MAXFILES 7 /* int: max open files */ 200 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 201 #define KERN_SECURELVL 9 /* int: system security level */ 202 #define KERN_HOSTNAME 10 /* string: hostname */ 203 #define KERN_HOSTID 11 /* int: host identifier */ 204 #define KERN_CLOCKRATE 12 /* struct: struct clockinfo */ 205 #define KERN_VNODE 13 /* struct: vnode structures */ 206 #define KERN_PROC 14 /* struct: process entries */ 207 #define KERN_FILE 15 /* struct: file entries */ 208 #define KERN_PROF 16 /* node: kernel profiling info */ 209 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 210 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 211 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 212 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 213 #define KERN_OBOOTTIME 21 /* struct: time kernel was booted */ 214 #define KERN_DOMAINNAME 22 /* string: (YP) domainname */ 215 #define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */ 216 #define KERN_RAWPARTITION 24 /* int: raw partition number */ 217 #define KERN_NTPTIME 25 /* struct: extended-precision time */ 218 #define KERN_TIMEX 26 /* struct: ntp timekeeping state */ 219 #define KERN_AUTONICETIME 27 /* int: proc time before autonice */ 220 #define KERN_AUTONICEVAL 28 /* int: auto nice value */ 221 #define KERN_RTC_OFFSET 29 /* int: offset of rtc from gmt */ 222 #define KERN_ROOT_DEVICE 30 /* string: root device */ 223 #define KERN_MSGBUFSIZE 31 /* int: max # of chars in msg buffer */ 224 #define KERN_FSYNC 32 /* int: file synchronization support */ 225 #define KERN_OLDSYSVMSG 33 /* old: SysV message queue support */ 226 #define KERN_OLDSYSVSEM 34 /* old: SysV semaphore support */ 227 #define KERN_OLDSYSVSHM 35 /* old: SysV shared memory support */ 228 #define KERN_OLDSHORTCORENAME 36 /* old, unimplemented */ 229 #define KERN_SYNCHRONIZED_IO 37 /* int: POSIX synchronized I/O */ 230 #define KERN_IOV_MAX 38 /* int: max iovec's for readv(2) etc. */ 231 #define KERN_MBUF 39 /* node: mbuf parameters */ 232 #define KERN_MAPPED_FILES 40 /* int: POSIX memory mapped files */ 233 #define KERN_MEMLOCK 41 /* int: POSIX memory locking */ 234 #define KERN_MEMLOCK_RANGE 42 /* int: POSIX memory range locking */ 235 #define KERN_MEMORY_PROTECTION 43 /* int: POSIX memory protections */ 236 #define KERN_LOGIN_NAME_MAX 44 /* int: max length login name + NUL */ 237 #define KERN_DEFCORENAME 45 /* old: sort core name format */ 238 #define KERN_LOGSIGEXIT 46 /* int: log signaled processes */ 239 #define KERN_PROC2 47 /* struct: process entries */ 240 #define KERN_PROC_ARGS 48 /* struct: process argv/env */ 241 #define KERN_FSCALE 49 /* int: fixpt FSCALE */ 242 #define KERN_CCPU 50 /* old: fixpt ccpu */ 243 #define KERN_CP_TIME 51 /* struct: CPU time counters */ 244 #define KERN_OLDSYSVIPC_INFO 52 /* old: number of valid kern ids */ 245 #define KERN_MSGBUF 53 /* kernel message buffer */ 246 #define KERN_CONSDEV 54 /* dev_t: console terminal device */ 247 #define KERN_MAXPTYS 55 /* int: maximum number of ptys */ 248 #define KERN_PIPE 56 /* node: pipe limits */ 249 #define KERN_MAXPHYS 57 /* int: kernel value of MAXPHYS */ 250 #define KERN_SBMAX 58 /* int: max socket buffer size */ 251 #define KERN_TKSTAT 59 /* tty in/out counters */ 252 #define KERN_MONOTONIC_CLOCK 60 /* int: POSIX monotonic clock */ 253 #define KERN_URND 61 /* int: random integer from urandom */ 254 #define KERN_LABELSECTOR 62 /* int: disklabel sector */ 255 #define KERN_LABELOFFSET 63 /* int: offset of label within sector */ 256 #define KERN_LWP 64 /* struct: lwp entries */ 257 #define KERN_FORKFSLEEP 65 /* int: sleep length on failed fork */ 258 #define KERN_POSIX_THREADS 66 /* int: POSIX Threads option */ 259 #define KERN_POSIX_SEMAPHORES 67 /* int: POSIX Semaphores option */ 260 #define KERN_POSIX_BARRIERS 68 /* int: POSIX Barriers option */ 261 #define KERN_POSIX_TIMERS 69 /* int: POSIX Timers option */ 262 #define KERN_POSIX_SPIN_LOCKS 70 /* int: POSIX Spin Locks option */ 263 #define KERN_POSIX_READER_WRITER_LOCKS 71 /* int: POSIX R/W Locks option */ 264 #define KERN_DUMP_ON_PANIC 72 /* int: dump on panic */ 265 #define KERN_SOMAXKVA 73 /* int: max socket kernel virtual mem */ 266 #define KERN_ROOT_PARTITION 74 /* int: root partition */ 267 #define KERN_DRIVERS 75 /* struct: driver names and majors #s */ 268 #define KERN_BUF 76 /* struct: buffers */ 269 #define KERN_FILE2 77 /* struct: file entries */ 270 #define KERN_VERIEXEC 78 /* node: verified exec */ 271 #define KERN_CP_ID 79 /* struct: cpu id numbers */ 272 #define KERN_HARDCLOCK_TICKS 80 /* int: number of hardclock ticks */ 273 #define KERN_ARND 81 /* void *buf, size_t siz random */ 274 #define KERN_SYSVIPC 82 /* node: SysV IPC parameters */ 275 #define KERN_BOOTTIME 83 /* struct: time kernel was booted */ 276 #define KERN_EVCNT 84 /* struct: evcnts */ 277 #define KERN_SOFIXEDBUF 85 /* bool: fixed socket buffer sizes */ 278 #define KERN_ENTROPY 86 /* node: entropy(9) subsystem */ 279 280 /* 281 * KERN_CLOCKRATE structure 282 */ 283 struct clockinfo { 284 int hz; /* clock frequency */ 285 int tick; /* micro-seconds per hz tick */ 286 int tickadj; /* clock skew rate for adjtime() */ 287 int stathz; /* statistics clock frequency */ 288 int profhz; /* profiling clock frequency */ 289 }; 290 291 /* 292 * KERN_PROC subtypes 293 */ 294 #define KERN_PROC_ALL 0 /* everything */ 295 #define KERN_PROC_PID 1 /* by process id */ 296 #define KERN_PROC_PGRP 2 /* by process group id */ 297 #define KERN_PROC_SESSION 3 /* by session of pid */ 298 #define KERN_PROC_TTY 4 /* by controlling tty */ 299 #define KERN_PROC_UID 5 /* by effective uid */ 300 #define KERN_PROC_RUID 6 /* by real uid */ 301 #define KERN_PROC_GID 7 /* by effective gid */ 302 #define KERN_PROC_RGID 8 /* by real gid */ 303 304 /* 305 * KERN_PROC_TTY sub-subtypes 306 */ 307 #define KERN_PROC_TTY_NODEV NODEV /* no controlling tty */ 308 #define KERN_PROC_TTY_REVOKE ((dev_t)-2) /* revoked tty */ 309 310 struct ki_pcred { 311 void *p_pad; 312 uid_t p_ruid; /* Real user id */ 313 uid_t p_svuid; /* Saved effective user id */ 314 gid_t p_rgid; /* Real group id */ 315 gid_t p_svgid; /* Saved effective group id */ 316 int p_refcnt; /* Number of references */ 317 }; 318 319 struct ki_ucred { 320 uint32_t cr_ref; /* reference count */ 321 uid_t cr_uid; /* effective user id */ 322 gid_t cr_gid; /* effective group id */ 323 uint32_t cr_ngroups; /* number of groups */ 324 gid_t cr_groups[NGROUPS]; /* groups */ 325 }; 326 327 #if defined(_KERNEL) || defined(_KMEMUSER) 328 329 struct eproc { 330 struct proc *e_paddr; /* address of proc */ 331 struct session *e_sess; /* session pointer */ 332 struct ki_pcred e_pcred; /* process credentials */ 333 struct ki_ucred e_ucred; /* current credentials */ 334 struct vmspace e_vm; /* address space */ 335 pid_t e_ppid; /* parent process id */ 336 pid_t e_pgid; /* process group id */ 337 short e_jobc; /* job control counter */ 338 uint32_t e_tdev; /* XXX: controlling tty dev */ 339 pid_t e_tpgid; /* tty process group id */ 340 struct session *e_tsess; /* tty session pointer */ 341 #define WMESGLEN 8 342 char e_wmesg[WMESGLEN]; /* wchan message */ 343 segsz_t e_xsize; /* text size */ 344 short e_xrssize; /* text rss */ 345 short e_xccount; /* text references */ 346 short e_xswrss; 347 long e_flag; /* see p_eflag below */ 348 char e_login[MAXLOGNAME]; /* setlogin() name */ 349 pid_t e_sid; /* session id */ 350 long e_spare[3]; 351 }; 352 353 /* 354 * KERN_PROC subtype ops return arrays of augmented proc structures: 355 */ 356 struct kinfo_proc { 357 struct proc kp_proc; /* proc structure */ 358 struct eproc kp_eproc; /* eproc structure */ 359 }; 360 #endif /* defined(_KERNEL) || defined(_KMEMUSER) */ 361 362 /* 363 * Convert pointer to 64 bit unsigned integer for struct 364 * kinfo_proc2, etc. 365 */ 366 #define PTRTOUINT64(p) ((uint64_t)(uintptr_t)(p)) 367 #define UINT64TOPTR(u) ((void *)(uintptr_t)(u)) 368 369 /* 370 * KERN_PROC2 subtype ops return arrays of relatively fixed size 371 * structures of process info. Use 8 byte alignment, and new 372 * elements should only be added to the end of this structure so 373 * binary compatibility can be preserved. 374 */ 375 #define KI_NGROUPS 16 376 #define KI_MAXCOMLEN 24 /* extra for 8 byte alignment */ 377 #define KI_WMESGLEN 8 378 #define KI_MAXLOGNAME 24 /* extra for 8 byte alignment */ 379 #define KI_MAXEMULLEN 16 380 #define KI_LNAMELEN 20 /* extra 4 for alignment */ 381 382 #define KI_NOCPU (~(uint64_t)0) 383 384 typedef struct { 385 uint32_t __bits[4]; 386 } ki_sigset_t; 387 388 struct kinfo_proc2 { 389 uint64_t p_forw; /* PTR: linked run/sleep queue. */ 390 uint64_t p_back; 391 uint64_t p_paddr; /* PTR: address of proc */ 392 393 uint64_t p_addr; /* PTR: Kernel virtual addr of u-area */ 394 uint64_t p_fd; /* PTR: Ptr to open files structure. */ 395 uint64_t p_cwdi; /* PTR: cdir/rdir/cmask info */ 396 uint64_t p_stats; /* PTR: Accounting/statistics */ 397 uint64_t p_limit; /* PTR: Process limits. */ 398 uint64_t p_vmspace; /* PTR: Address space. */ 399 uint64_t p_sigacts; /* PTR: Signal actions, state */ 400 uint64_t p_sess; /* PTR: session pointer */ 401 uint64_t p_tsess; /* PTR: tty session pointer */ 402 uint64_t p_ru; /* PTR: Exit information. XXX */ 403 404 int32_t p_eflag; /* LONG: extra kinfo_proc2 flags */ 405 #define EPROC_CTTY 0x01 /* controlling tty vnode active */ 406 #define EPROC_SLEADER 0x02 /* session leader */ 407 int32_t p_exitsig; /* INT: signal to sent to parent on exit */ 408 int32_t p_flag; /* INT: P_* flags. */ 409 410 int32_t p_pid; /* PID_T: Process identifier. */ 411 int32_t p_ppid; /* PID_T: Parent process id */ 412 int32_t p_sid; /* PID_T: session id */ 413 int32_t p__pgid; /* PID_T: process group id */ 414 /* XXX: <sys/proc.h> hijacks p_pgid */ 415 int32_t p_tpgid; /* PID_T: tty process group id */ 416 417 uint32_t p_uid; /* UID_T: effective user id */ 418 uint32_t p_ruid; /* UID_T: real user id */ 419 uint32_t p_gid; /* GID_T: effective group id */ 420 uint32_t p_rgid; /* GID_T: real group id */ 421 422 uint32_t p_groups[KI_NGROUPS]; /* GID_T: groups */ 423 int16_t p_ngroups; /* SHORT: number of groups */ 424 425 int16_t p_jobc; /* SHORT: job control counter */ 426 uint32_t p_tdev; /* XXX: DEV_T: controlling tty dev */ 427 428 uint32_t p_estcpu; /* U_INT: Time averaged value of p_cpticks. */ 429 uint32_t p_rtime_sec; /* STRUCT TIMEVAL: Real time. */ 430 uint32_t p_rtime_usec; /* STRUCT TIMEVAL: Real time. */ 431 int32_t p_cpticks; /* INT: Ticks of CPU time. */ 432 uint32_t p_pctcpu; /* FIXPT_T: %cpu for this process during p_swtime */ 433 uint32_t p_swtime; /* U_INT: Time swapped in or out. */ 434 uint32_t p_slptime; /* U_INT: Time since last blocked. */ 435 int32_t p_schedflags; /* INT: PSCHED_* flags */ 436 437 uint64_t p_uticks; /* U_QUAD_T: Statclock hits in user mode. */ 438 uint64_t p_sticks; /* U_QUAD_T: Statclock hits in system mode. */ 439 uint64_t p_iticks; /* U_QUAD_T: Statclock hits processing intr. */ 440 441 uint64_t p_tracep; /* PTR: Trace to vnode or file */ 442 int32_t p_traceflag; /* INT: Kernel trace points. */ 443 444 int32_t p_holdcnt; /* INT: If non-zero, don't swap. */ 445 446 ki_sigset_t p_siglist; /* SIGSET_T: Signals arrived but not delivered. */ 447 ki_sigset_t p_sigmask; /* SIGSET_T: Current signal mask. */ 448 ki_sigset_t p_sigignore; /* SIGSET_T: Signals being ignored. */ 449 ki_sigset_t p_sigcatch; /* SIGSET_T: Signals being caught by user. */ 450 451 int8_t p_stat; /* CHAR: S* process status (from LWP). */ 452 uint8_t p_priority; /* U_CHAR: Process priority. */ 453 uint8_t p_usrpri; /* U_CHAR: User-priority based on p_cpu and p_nice. */ 454 uint8_t p_nice; /* U_CHAR: Process "nice" value. */ 455 456 uint16_t p_xstat; /* U_SHORT: Exit status for wait; also stop signal. */ 457 uint16_t p_acflag; /* U_SHORT: Accounting flags. */ 458 459 char p_comm[KI_MAXCOMLEN]; 460 461 char p_wmesg[KI_WMESGLEN]; /* wchan message */ 462 uint64_t p_wchan; /* PTR: sleep address. */ 463 464 char p_login[KI_MAXLOGNAME]; /* setlogin() name */ 465 466 int32_t p_vm_rssize; /* SEGSZ_T: current resident set size in pages */ 467 int32_t p_vm_tsize; /* SEGSZ_T: text size (pages) */ 468 int32_t p_vm_dsize; /* SEGSZ_T: data size (pages) */ 469 int32_t p_vm_ssize; /* SEGSZ_T: stack size (pages) */ 470 471 int64_t p_uvalid; /* CHAR: following p_u* parameters are valid */ 472 /* XXX 64 bits for alignment */ 473 uint32_t p_ustart_sec; /* STRUCT TIMEVAL: starting time. */ 474 uint32_t p_ustart_usec; /* STRUCT TIMEVAL: starting time. */ 475 476 uint32_t p_uutime_sec; /* STRUCT TIMEVAL: user time. */ 477 uint32_t p_uutime_usec; /* STRUCT TIMEVAL: user time. */ 478 uint32_t p_ustime_sec; /* STRUCT TIMEVAL: system time. */ 479 uint32_t p_ustime_usec; /* STRUCT TIMEVAL: system time. */ 480 481 uint64_t p_uru_maxrss; /* LONG: max resident set size. */ 482 uint64_t p_uru_ixrss; /* LONG: integral shared memory size. */ 483 uint64_t p_uru_idrss; /* LONG: integral unshared data ". */ 484 uint64_t p_uru_isrss; /* LONG: integral unshared stack ". */ 485 uint64_t p_uru_minflt; /* LONG: page reclaims. */ 486 uint64_t p_uru_majflt; /* LONG: page faults. */ 487 uint64_t p_uru_nswap; /* LONG: swaps. */ 488 uint64_t p_uru_inblock; /* LONG: block input operations. */ 489 uint64_t p_uru_oublock; /* LONG: block output operations. */ 490 uint64_t p_uru_msgsnd; /* LONG: messages sent. */ 491 uint64_t p_uru_msgrcv; /* LONG: messages received. */ 492 uint64_t p_uru_nsignals; /* LONG: signals received. */ 493 uint64_t p_uru_nvcsw; /* LONG: voluntary context switches. */ 494 uint64_t p_uru_nivcsw; /* LONG: involuntary ". */ 495 496 uint32_t p_uctime_sec; /* STRUCT TIMEVAL: child u+s time. */ 497 uint32_t p_uctime_usec; /* STRUCT TIMEVAL: child u+s time. */ 498 uint64_t p_cpuid; /* LONG: CPU id */ 499 uint64_t p_realflag; /* INT: P_* flags (not including LWPs). */ 500 uint64_t p_nlwps; /* LONG: Number of LWPs */ 501 uint64_t p_nrlwps; /* LONG: Number of running LWPs */ 502 uint64_t p_realstat; /* LONG: non-LWP process status */ 503 uint32_t p_svuid; /* UID_T: saved user id */ 504 uint32_t p_svgid; /* GID_T: saved group id */ 505 char p_ename[KI_MAXEMULLEN]; /* emulation name */ 506 int64_t p_vm_vsize; /* SEGSZ_T: total map size (pages) */ 507 int64_t p_vm_msize; /* SEGSZ_T: stack-adjusted map size (pages) */ 508 }; 509 510 /* 511 * Compat flags for kinfo_proc, kinfo_proc2. Not guaranteed to be stable. 512 * Some of them used to be shared with LWP flags. 513 * XXXAD Trim to the minimum necessary... 514 */ 515 516 #define P_ADVLOCK 0x00000001 517 #define P_CONTROLT 0x00000002 518 #define L_INMEM 0x00000004 519 #define P_INMEM /* 0x00000004 */ L_INMEM 520 #define P_NOCLDSTOP 0x00000008 521 #define P_PPWAIT 0x00000010 522 #define P_PROFIL 0x00000020 523 #define L_SELECT 0x00000040 524 #define P_SELECT /* 0x00000040 */ L_SELECT 525 #define L_SINTR 0x00000080 526 #define P_SINTR /* 0x00000080 */ L_SINTR 527 #define P_SUGID 0x00000100 528 #define L_SYSTEM 0x00000200 529 #define P_SYSTEM /* 0x00000200 */ L_SYSTEM 530 #define L_SA 0x00000400 531 #define P_SA /* 0x00000400 */ L_SA 532 #define P_TRACED 0x00000800 533 #define P_WAITED 0x00001000 534 #define P_WEXIT 0x00002000 535 #define P_EXEC 0x00004000 536 #define P_OWEUPC 0x00008000 537 #define P_NOCLDWAIT 0x00020000 538 #define P_32 0x00040000 539 #define P_CLDSIGIGN 0x00080000 540 #define P_SYSTRACE 0x00200000 541 #define P_CHTRACED 0x00400000 542 #define P_STOPFORK 0x00800000 543 #define P_STOPEXEC 0x01000000 544 #define P_STOPEXIT 0x02000000 545 #define P_SYSCALL 0x04000000 546 547 /* 548 * LWP compat flags. 549 */ 550 #define L_DETACHED 0x00800000 551 552 #define __SYSCTL_PROC_FLAG_BITS \ 553 "\20" \ 554 "\1ADVLOCK" \ 555 "\2CONTROLT" \ 556 "\3INMEM" \ 557 "\4NOCLDSTOP" \ 558 "\5PPWAIT" \ 559 "\6PROFIL" \ 560 "\7SELECT" \ 561 "\10SINTR" \ 562 "\11SUGID" \ 563 "\12SYSTEM" \ 564 "\13SA" \ 565 "\14TRACED" \ 566 "\15WAITED" \ 567 "\16WEXIT" \ 568 "\17EXEC" \ 569 "\20OWEUPC" \ 570 "\22NOCLDWAIT" \ 571 "\23P32" \ 572 "\24CLDSIGIGN" \ 573 "\26SYSTRACE" \ 574 "\27CHTRACED" \ 575 "\30STOPFORK" \ 576 "\31STOPEXEC" \ 577 "\32STOPEXIT" \ 578 "\33SYSCALL" 579 580 /* 581 * KERN_LWP structure. See notes on KERN_PROC2 about adding elements. 582 */ 583 struct kinfo_lwp { 584 uint64_t l_forw; /* PTR: linked run/sleep queue. */ 585 uint64_t l_back; 586 uint64_t l_laddr; /* PTR: Address of LWP */ 587 uint64_t l_addr; /* PTR: Kernel virtual addr of u-area */ 588 int32_t l_lid; /* LWPID_T: LWP identifier */ 589 int32_t l_flag; /* INT: L_* flags. */ 590 uint32_t l_swtime; /* U_INT: Time swapped in or out. */ 591 uint32_t l_slptime; /* U_INT: Time since last blocked. */ 592 int32_t l_schedflags; /* INT: PSCHED_* flags */ 593 int32_t l_holdcnt; /* INT: If non-zero, don't swap. */ 594 uint8_t l_priority; /* U_CHAR: Process priority. */ 595 uint8_t l_usrpri; /* U_CHAR: User-priority based on l_cpu and p_nice. */ 596 int8_t l_stat; /* CHAR: S* process status. */ 597 int8_t l_pad1; /* fill out to 4-byte boundary */ 598 int32_t l_pad2; /* .. and then to an 8-byte boundary */ 599 char l_wmesg[KI_WMESGLEN]; /* wchan message */ 600 uint64_t l_wchan; /* PTR: sleep address. */ 601 uint64_t l_cpuid; /* LONG: CPU id */ 602 uint32_t l_rtime_sec; /* STRUCT TIMEVAL: Real time. */ 603 uint32_t l_rtime_usec; /* STRUCT TIMEVAL: Real time. */ 604 uint32_t l_cpticks; /* INT: ticks during l_swtime */ 605 uint32_t l_pctcpu; /* FIXPT_T: cpu usage for ps */ 606 uint32_t l_pid; /* PID_T: process identifier */ 607 char l_name[KI_LNAMELEN]; /* CHAR[]: name, may be empty */ 608 }; 609 610 /* 611 * KERN_PROC_ARGS subtypes 612 */ 613 #define KERN_PROC_ARGV 1 /* argv */ 614 #define KERN_PROC_NARGV 2 /* number of strings in above */ 615 #define KERN_PROC_ENV 3 /* environ */ 616 #define KERN_PROC_NENV 4 /* number of strings in above */ 617 #define KERN_PROC_PATHNAME 5 /* path to executable */ 618 #define KERN_PROC_CWD 6 /* current working dir */ 619 620 /* 621 * KERN_SYSVIPC subtypes 622 */ 623 #define KERN_SYSVIPC_INFO 1 /* struct: number of valid kern ids */ 624 #define KERN_SYSVIPC_MSG 2 /* int: SysV message queue support */ 625 #define KERN_SYSVIPC_SEM 3 /* int: SysV semaphore support */ 626 #define KERN_SYSVIPC_SHM 4 /* int: SysV shared memory support */ 627 #define KERN_SYSVIPC_SHMMAX 5 /* int: max shared memory segment size (bytes) */ 628 #define KERN_SYSVIPC_SHMMNI 6 /* int: max number of shared memory identifiers */ 629 #define KERN_SYSVIPC_SHMSEG 7 /* int: max shared memory segments per process */ 630 #define KERN_SYSVIPC_SHMMAXPGS 8 /* int: max amount of shared memory (pages) */ 631 #define KERN_SYSVIPC_SHMUSEPHYS 9 /* int: physical memory usage */ 632 633 /* 634 * KERN_SYSVIPC_INFO subtypes 635 */ 636 /* KERN_SYSVIPC_OMSG_INFO 1 */ 637 /* KERN_SYSVIPC_OSEM_INFO 2 */ 638 /* KERN_SYSVIPC_OSHM_INFO 3 */ 639 #define KERN_SYSVIPC_MSG_INFO 4 /* msginfo and msgid_ds */ 640 #define KERN_SYSVIPC_SEM_INFO 5 /* seminfo and semid_ds */ 641 #define KERN_SYSVIPC_SHM_INFO 6 /* shminfo and shmid_ds */ 642 643 /* 644 * tty counter sysctl variables 645 */ 646 #define KERN_TKSTAT_NIN 1 /* total input character */ 647 #define KERN_TKSTAT_NOUT 2 /* total output character */ 648 #define KERN_TKSTAT_CANCC 3 /* canonical input character */ 649 #define KERN_TKSTAT_RAWCC 4 /* raw input character */ 650 651 /* 652 * kern.drivers returns an array of these. 653 */ 654 655 struct kinfo_drivers { 656 devmajor_t d_cmajor; 657 devmajor_t d_bmajor; 658 char d_name[24]; 659 }; 660 661 /* 662 * KERN_BUF subtypes, like KERN_PROC2, where the four following mib 663 * entries specify "which type of buf", "which particular buf", 664 * "sizeof buf", and "how many". Currently, only "all buf" is 665 * defined. 666 */ 667 #define KERN_BUF_ALL 0 /* all buffers */ 668 669 /* 670 * kern.buf returns an array of these structures, which are designed 671 * both to be immune to 32/64 bit emulation issues and to provide 672 * backwards compatibility. Note that the order here differs slightly 673 * from the real struct buf in order to achieve proper 64 bit 674 * alignment. 675 */ 676 struct buf_sysctl { 677 uint32_t b_flags; /* LONG: B_* flags */ 678 int32_t b_error; /* INT: Errno value */ 679 int32_t b_prio; /* INT: Hint for buffer queue discipline */ 680 uint32_t b_dev; /* DEV_T: Device associated with buffer */ 681 uint64_t b_bufsize; /* LONG: Allocated buffer size */ 682 uint64_t b_bcount; /* LONG: Valid bytes in buffer */ 683 uint64_t b_resid; /* LONG: Remaining I/O */ 684 uint64_t b_addr; /* CADDR_T: Memory, superblocks, indirect... */ 685 uint64_t b_blkno; /* DADDR_T: Underlying physical block number */ 686 uint64_t b_rawblkno; /* DADDR_T: Raw underlying physical block */ 687 uint64_t b_iodone; /* PTR: Function called upon completion */ 688 uint64_t b_proc; /* PTR: Associated proc if B_PHYS set */ 689 uint64_t b_vp; /* PTR: File vnode */ 690 uint64_t b_saveaddr; /* PTR: Original b_addr for physio */ 691 uint64_t b_lblkno; /* DADDR_T: Logical block number */ 692 }; 693 694 #define KERN_BUFSLOP 20 695 696 /* 697 * kern.file2 returns an array of these structures, which are designed 698 * both to be immune to 32/64 bit emulation issues and to 699 * provide backwards compatibility. The order differs slightly from 700 * that of the real struct file, and some fields are taken from other 701 * structures (struct vnode, struct proc) in order to make the file 702 * information more useful. 703 */ 704 struct kinfo_file { 705 uint64_t ki_fileaddr; /* PTR: address of struct file */ 706 uint32_t ki_flag; /* INT: flags (see fcntl.h) */ 707 uint32_t ki_iflags; /* INT: internal flags */ 708 uint32_t ki_ftype; /* INT: descriptor type */ 709 uint32_t ki_count; /* UINT: reference count */ 710 uint32_t ki_msgcount; /* UINT: references from msg queue */ 711 uint32_t ki_usecount; /* INT: number active users */ 712 uint64_t ki_fucred; /* PTR: creds for descriptor */ 713 uint32_t ki_fuid; /* UID_T: descriptor credentials */ 714 uint32_t ki_fgid; /* GID_T: descriptor credentials */ 715 uint64_t ki_fops; /* PTR: address of fileops */ 716 uint64_t ki_foffset; /* OFF_T: offset */ 717 uint64_t ki_fdata; /* PTR: descriptor data */ 718 719 /* vnode information to glue this file to something */ 720 uint64_t ki_vun; /* PTR: socket, specinfo, etc */ 721 uint64_t ki_vsize; /* OFF_T: size of file */ 722 uint32_t ki_vtype; /* ENUM: vnode type */ 723 uint32_t ki_vtag; /* ENUM: type of underlying data */ 724 uint64_t ki_vdata; /* PTR: private data for fs */ 725 726 /* process information when retrieved via KERN_FILE_BYPID */ 727 uint32_t ki_pid; /* PID_T: process id */ 728 int32_t ki_fd; /* INT: descriptor number */ 729 uint32_t ki_ofileflags; /* CHAR: open file flags */ 730 uint32_t _ki_padto64bits; 731 }; 732 733 #define KERN_FILE_BYFILE 1 734 #define KERN_FILE_BYPID 2 735 #define KERN_FILESLOP 10 736 737 /* 738 * kern.evcnt returns an array of these structures, which are designed both to 739 * be immune to 32/64 bit emulation issues. Note that the struct here differs 740 * from the real struct evcnt but contains the same information in order to 741 * accommodate sysctl. 742 */ 743 struct evcnt_sysctl { 744 uint64_t ev_count; /* current count */ 745 uint64_t ev_addr; /* kernel address of evcnt */ 746 uint64_t ev_parent; /* kernel address of parent */ 747 uint8_t ev_type; /* EVCNT_TRAP_* */ 748 uint8_t ev_grouplen; /* length of group with NUL */ 749 uint8_t ev_namelen; /* length of name with NUL */ 750 uint8_t ev_len; /* multiply by 8 */ 751 /* 752 * Now the group and name strings follow (both include the trailing 753 * NUL). ev_name start at &ev_strings[ev_grouplen+1] 754 */ 755 char ev_strings[]; 756 }; 757 758 #define KERN_EVCNT_COUNT_ANY 0 759 #define KERN_EVCNT_COUNT_NONZERO 1 760 761 762 /* 763 * kern.hashstat returns an array of these structures, which are designed 764 * to be immune to 32/64 bit emulation issues. 765 * 766 * Hash users can register a filler function to fill the hashstat_sysctl 767 * which can then be exposed via vmstat(1). 768 * 769 * See comments for hashstat_sysctl() in kern/subr_hash.c for details 770 * on sysctl(3) usage. 771 */ 772 struct hashstat_sysctl { 773 char hash_name[SYSCTL_NAMELEN]; 774 char hash_desc[SYSCTL_NAMELEN]; 775 uint64_t hash_size; 776 uint64_t hash_used; 777 uint64_t hash_items; 778 uint64_t hash_maxchain; 779 }; 780 typedef int (*hashstat_func_t)(struct hashstat_sysctl *, bool); 781 void hashstat_register(const char *, hashstat_func_t); 782 783 /* 784 * kern.entropy.* variables 785 */ 786 787 #define KERN_ENTROPY_EPOCH 1 /* int: PRNG reseed epoch */ 788 789 /* 790 * CTL_VM identifiers in <uvm/uvm_param.h> 791 */ 792 793 /* 794 * The vm.proc.map sysctl allows a process to dump the VM layout of 795 * another process as a series of entries. 796 */ 797 #define KVME_TYPE_NONE 0 798 #define KVME_TYPE_OBJECT 1 799 #define KVME_TYPE_VNODE 2 800 #define KVME_TYPE_KERN 3 801 #define KVME_TYPE_DEVICE 4 802 #define KVME_TYPE_ANON 5 803 #define KVME_TYPE_SUBMAP 6 804 #define KVME_TYPE_UNKNOWN 255 805 806 #define KVME_PROT_READ 0x00000001 807 #define KVME_PROT_WRITE 0x00000002 808 #define KVME_PROT_EXEC 0x00000004 809 810 #define KVME_FLAG_COW 0x00000001 811 #define KVME_FLAG_NEEDS_COPY 0x00000002 812 #define KVME_FLAG_NOCOREDUMP 0x00000004 813 #define KVME_FLAG_PAGEABLE 0x00000008 814 #define KVME_FLAG_GROWS_UP 0x00000010 815 #define KVME_FLAG_GROWS_DOWN 0x00000020 816 817 struct kinfo_vmentry { 818 uint64_t kve_start; /* Starting address. */ 819 uint64_t kve_end; /* Finishing address. */ 820 uint64_t kve_offset; /* Mapping offset in object */ 821 822 uint32_t kve_type; /* Type of map entry. */ 823 uint32_t kve_flags; /* Flags on map entry. */ 824 825 uint32_t kve_count; /* Number of pages/entries */ 826 uint32_t kve_wired_count; /* Number of wired pages */ 827 828 uint32_t kve_advice; /* Advice */ 829 uint32_t kve_attributes; /* Map attribute */ 830 831 uint32_t kve_protection; /* Protection bitmask. */ 832 uint32_t kve_max_protection; /* Max protection bitmask */ 833 834 uint32_t kve_ref_count; /* VM obj ref count. */ 835 uint32_t kve_inheritance; /* Inheritance */ 836 837 uint64_t kve_vn_fileid; /* inode number if vnode */ 838 uint64_t kve_vn_size; /* File size. */ 839 uint64_t kve_vn_fsid; /* dev_t of vnode location */ 840 uint64_t kve_vn_rdev; /* Device id if device. */ 841 842 uint32_t kve_vn_type; /* Vnode type. */ 843 uint32_t kve_vn_mode; /* File mode. */ 844 845 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */ 846 }; 847 848 /* 849 * CTL_HW identifiers 850 */ 851 #define HW_MACHINE 1 /* string: machine class */ 852 #define HW_MODEL 2 /* string: specific machine model */ 853 #define HW_NCPU 3 /* int: number of cpus */ 854 #define HW_BYTEORDER 4 /* int: machine byte order */ 855 #define HW_PHYSMEM 5 /* int: total memory (bytes) */ 856 #define HW_USERMEM 6 /* int: non-kernel memory (bytes) */ 857 #define HW_PAGESIZE 7 /* int: software page size */ 858 #define HW_DISKNAMES 8 /* string: disk drive names */ 859 #define HW_IOSTATS 9 /* struct: iostats[] */ 860 #define HW_MACHINE_ARCH 10 /* string: machine architecture */ 861 #define HW_ALIGNBYTES 11 /* int: ALIGNBYTES for the kernel */ 862 #define HW_CNMAGIC 12 /* string: console magic sequence(s) */ 863 #define HW_PHYSMEM64 13 /* quad: total memory (bytes) */ 864 #define HW_USERMEM64 14 /* quad: non-kernel memory (bytes) */ 865 #define HW_IOSTATNAMES 15 /* string: iostat names */ 866 #define HW_NCPUONLINE 16 /* number CPUs online */ 867 868 /* 869 * CTL_USER definitions 870 */ 871 #define USER_CS_PATH 1 /* string: _CS_PATH */ 872 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 873 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 874 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 875 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 876 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 877 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 878 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 879 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 880 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 881 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 882 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 883 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 884 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 885 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 886 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 887 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 888 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 889 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 890 #define USER_TZNAME_MAX 20 /* int: _POSIX_TZNAME_MAX */ 891 #define USER_ATEXIT_MAX 21 /* int: {ATEXIT_MAX} */ 892 893 /* 894 * CTL_DDB definitions 895 */ 896 #define DDBCTL_RADIX 1 /* int: Input and output radix */ 897 #define DDBCTL_MAXOFF 2 /* int: max symbol offset */ 898 #define DDBCTL_MAXWIDTH 3 /* int: width of the display line */ 899 #define DDBCTL_LINES 4 /* int: number of display lines */ 900 #define DDBCTL_TABSTOPS 5 /* int: tab width */ 901 #define DDBCTL_ONPANIC 6 /* int: DDB on panic if non-zero */ 902 #define DDBCTL_FROMCONSOLE 7 /* int: DDB via console if non-zero */ 903 904 /* 905 * CTL_DEBUG definitions 906 * 907 * Second level identifier specifies which debug variable. 908 * Third level identifier specifies which structure component. 909 */ 910 #define CTL_DEBUG_NAME 0 /* string: variable name */ 911 #define CTL_DEBUG_VALUE 1 /* int: variable value */ 912 913 /* 914 * CTL_PROC subtype. Either a PID, or a magic value for the current proc. 915 */ 916 917 #define PROC_CURPROC (~((u_int)1 << 31)) 918 919 /* 920 * CTL_PROC tree: either corename (string), a limit 921 * (rlimit.<type>.{hard,soft}, int), a process stop 922 * condition, or paxflags. 923 */ 924 #define PROC_PID_CORENAME 1 925 #define PROC_PID_LIMIT 2 926 #define PROC_PID_STOPFORK 3 927 #define PROC_PID_STOPEXEC 4 928 #define PROC_PID_STOPEXIT 5 929 #define PROC_PID_PAXFLAGS 6 930 931 /* Limit types from <sys/resources.h> */ 932 #define PROC_PID_LIMIT_CPU (RLIMIT_CPU+1) 933 #define PROC_PID_LIMIT_FSIZE (RLIMIT_FSIZE+1) 934 #define PROC_PID_LIMIT_DATA (RLIMIT_DATA+1) 935 #define PROC_PID_LIMIT_STACK (RLIMIT_STACK+1) 936 #define PROC_PID_LIMIT_CORE (RLIMIT_CORE+1) 937 #define PROC_PID_LIMIT_RSS (RLIMIT_RSS+1) 938 #define PROC_PID_LIMIT_MEMLOCK (RLIMIT_MEMLOCK+1) 939 #define PROC_PID_LIMIT_NPROC (RLIMIT_NPROC+1) 940 #define PROC_PID_LIMIT_NOFILE (RLIMIT_NOFILE+1) 941 #define PROC_PID_LIMIT_SBSIZE (RLIMIT_SBSIZE+1) 942 #define PROC_PID_LIMIT_AS (RLIMIT_AS+1) 943 #define PROC_PID_LIMIT_NTHR (RLIMIT_NTHR+1) 944 945 /* for each type, either hard or soft value */ 946 #define PROC_PID_LIMIT_TYPE_SOFT 1 947 #define PROC_PID_LIMIT_TYPE_HARD 2 948 949 /* 950 * Export PAX flag definitions to userland. 951 * 952 * XXX These are duplicated from sys/pax.h but that header is not 953 * XXX installed. 954 */ 955 #define CTL_PROC_PAXFLAGS_ASLR 0x01 956 #define CTL_PROC_PAXFLAGS_MPROTECT 0x02 957 #define CTL_PROC_PAXFLAGS_GUARD 0x04 958 959 /* 960 * CTL_EMUL definitions 961 * 962 * Second level identifier specifies which emulation variable. 963 * Subsequent levels are specified in the emulations themselves. 964 */ 965 #define EMUL_LINUX 1 966 #define EMUL_LINUX32 5 967 968 #ifdef _KERNEL 969 970 #if defined(_KERNEL_OPT) 971 #include "opt_sysctl.h" 972 #endif 973 974 /* Root node of the kernel sysctl tree */ 975 extern struct sysctlnode sysctl_root; 976 977 /* 978 * A log of nodes created by a setup function or set of setup 979 * functions so that they can be torn down in one "transaction" 980 * when no longer needed. 981 * 982 * Users of the log merely pass a pointer to a pointer, and the sysctl 983 * infrastructure takes care of the rest. 984 */ 985 struct sysctllog; 986 987 /* 988 * CTL_DEBUG variables. 989 * 990 * These are declared as separate variables so that they can be 991 * individually initialized at the location of their associated 992 * variable. The loader prevents multiple use by issuing errors 993 * if a variable is initialized in more than one place. They are 994 * aggregated into an array in debug_sysctl(), so that it can 995 * conveniently locate them when queried. If more debugging 996 * variables are added, they must also be declared here and also 997 * entered into the array. 998 * 999 * Note that the debug subtree is largely obsolescent in terms of 1000 * functionality now that we have dynamic sysctl, but the 1001 * infrastructure is retained for backwards compatibility. 1002 */ 1003 struct ctldebug { 1004 const char *debugname; /* name of debugging variable */ 1005 int *debugvar; /* pointer to debugging variable */ 1006 }; 1007 #ifdef DEBUG 1008 extern struct ctldebug debug0, debug1, debug2, debug3, debug4; 1009 extern struct ctldebug debug5, debug6, debug7, debug8, debug9; 1010 extern struct ctldebug debug10, debug11, debug12, debug13, debug14; 1011 extern struct ctldebug debug15, debug16, debug17, debug18, debug19; 1012 #endif /* DEBUG */ 1013 1014 #define SYSCTLFN_PROTO const int *, u_int, void *, \ 1015 size_t *, const void *, size_t, \ 1016 const int *, struct lwp *, const struct sysctlnode * 1017 #define SYSCTLFN_ARGS const int *name, u_int namelen, \ 1018 void *oldp, size_t *oldlenp, \ 1019 const void *newp, size_t newlen, \ 1020 const int *oname, struct lwp *l, \ 1021 const struct sysctlnode *rnode 1022 #define SYSCTLFN_CALL(node) name, namelen, oldp, \ 1023 oldlenp, newp, newlen, \ 1024 oname, l, node 1025 1026 #ifdef RUMP_USE_CTOR 1027 #include <sys/kernel.h> 1028 1029 struct sysctl_setup_chain { 1030 void (*ssc_func)(struct sysctllog **); 1031 LIST_ENTRY(sysctl_setup_chain) ssc_entries; 1032 }; 1033 LIST_HEAD(sysctl_boot_chain, sysctl_setup_chain); 1034 #define _SYSCTL_REGISTER(name) \ 1035 static struct sysctl_setup_chain __CONCAT(ssc,name) = { \ 1036 .ssc_func = name, \ 1037 }; \ 1038 static void sysctlctor_##name(void) __attribute__((constructor)); \ 1039 static void sysctlctor_##name(void) \ 1040 { \ 1041 struct sysctl_setup_chain *ssc = &__CONCAT(ssc,name); \ 1042 extern struct sysctl_boot_chain sysctl_boot_chain; \ 1043 if (cold) { \ 1044 LIST_INSERT_HEAD(&sysctl_boot_chain, ssc, ssc_entries); \ 1045 } \ 1046 } \ 1047 static void sysctldtor_##name(void) __attribute__((destructor)); \ 1048 static void sysctldtor_##name(void) \ 1049 { \ 1050 struct sysctl_setup_chain *ssc = &__CONCAT(ssc,name); \ 1051 if (cold) { \ 1052 LIST_REMOVE(ssc, ssc_entries); \ 1053 } \ 1054 } 1055 1056 #else /* RUMP_USE_CTOR */ 1057 1058 #define _SYSCTL_REGISTER(name) __link_set_add_text(sysctl_funcs, name); 1059 1060 #endif /* RUMP_USE_CTOR */ 1061 1062 #ifdef _MODULE 1063 1064 #define SYSCTL_SETUP_PROTO(name) \ 1065 void name(struct sysctllog **) 1066 #ifdef SYSCTL_DEBUG_SETUP 1067 #define SYSCTL_SETUP(name, desc) \ 1068 SYSCTL_SETUP_PROTO(name); \ 1069 static void __CONCAT(___,name)(struct sysctllog **); \ 1070 void name(struct sysctllog **clog) { \ 1071 printf("%s\n", desc); \ 1072 __CONCAT(___,name)(clog); } \ 1073 _SYSCTL_REGISTER(name); \ 1074 static void __CONCAT(___,name)(struct sysctllog **clog) 1075 #else /* !SYSCTL_DEBUG_SETUP */ 1076 #define SYSCTL_SETUP(name, desc) \ 1077 SYSCTL_SETUP_PROTO(name); \ 1078 _SYSCTL_REGISTER(name); \ 1079 void name(struct sysctllog **clog) 1080 #endif /* !SYSCTL_DEBUG_SETUP */ 1081 1082 #else /* !_MODULE */ 1083 1084 #define SYSCTL_SETUP_PROTO(name) 1085 #ifdef SYSCTL_DEBUG_SETUP 1086 #define SYSCTL_SETUP(name, desc) \ 1087 static void __CONCAT(___,name)(struct sysctllog **); \ 1088 static void name(struct sysctllog **clog) { \ 1089 printf("%s\n", desc); \ 1090 __CONCAT(___,name)(clog); } \ 1091 _SYSCTL_REGISTER(name); \ 1092 static void __CONCAT(___,name)(struct sysctllog **clog) 1093 #else /* !SYSCTL_DEBUG_SETUP */ 1094 #define SYSCTL_SETUP(name, desc) \ 1095 static void name(struct sysctllog **); \ 1096 _SYSCTL_REGISTER(name); \ 1097 static void name(struct sysctllog **clog) 1098 #endif /* !SYSCTL_DEBUG_SETUP */ 1099 1100 #endif /* !_MODULE */ 1101 1102 /* 1103 * Internal sysctl function calling convention: 1104 * 1105 * (*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen, 1106 * origname, lwp, node); 1107 * 1108 * The name parameter points at the next component of the name to be 1109 * interpreted. The namelen parameter is the number of integers in 1110 * the name. The origname parameter points to the start of the name 1111 * being parsed. The node parameter points to the node on which the 1112 * current operation is to be performed. 1113 */ 1114 typedef int (*sysctlfn)(SYSCTLFN_PROTO); 1115 1116 /* 1117 * used in more than just sysctl 1118 */ 1119 void fill_eproc(struct proc *, struct eproc *, bool, bool); 1120 void fill_kproc2(struct proc *, struct kinfo_proc2 *, bool, bool); 1121 1122 /* 1123 * subsystem setup 1124 */ 1125 void sysctl_init(void); 1126 void sysctl_basenode_init(void); 1127 void sysctl_finalize(void); 1128 1129 /* 1130 * typical syscall call order 1131 */ 1132 void sysctl_lock(bool); 1133 int sysctl_dispatch(SYSCTLFN_PROTO); 1134 void sysctl_unlock(void); 1135 void sysctl_relock(void); 1136 1137 /* 1138 * tree navigation primitives (must obtain lock before using these) 1139 */ 1140 int sysctl_locate(struct lwp *, const int *, u_int, 1141 const struct sysctlnode **, int *); 1142 int sysctl_query(SYSCTLFN_PROTO); 1143 int sysctl_create(SYSCTLFN_PROTO); 1144 int sysctl_destroy(SYSCTLFN_PROTO); 1145 int sysctl_lookup(SYSCTLFN_PROTO); 1146 int sysctl_describe(SYSCTLFN_PROTO); 1147 1148 /* 1149 * simple variadic interface for adding/removing nodes 1150 */ 1151 int sysctl_createv(struct sysctllog **, int, 1152 const struct sysctlnode **, const struct sysctlnode **, 1153 int, int, const char *, const char *, 1154 sysctlfn, u_quad_t, void *, size_t, ...); 1155 int sysctl_destroyv(struct sysctlnode *, ...); 1156 1157 #define VERIFY_FN(ctl_type, c_type) \ 1158 __always_inline static __inline void * \ 1159 __sysctl_verify_##ctl_type##_arg(c_type *arg) \ 1160 { \ 1161 return arg; \ 1162 } 1163 1164 VERIFY_FN(CTLTYPE_NODE, struct sysctlnode) 1165 VERIFY_FN(CTLTYPE_INT, int) 1166 VERIFY_FN(CTLTYPE_STRING, char) 1167 VERIFY_FN(CTLTYPE_QUAD, int64_t) 1168 VERIFY_FN(CTLTYPE_STRUCT, void) 1169 VERIFY_FN(CTLTYPE_BOOL, bool) 1170 VERIFY_FN(CTLTYPE_LONG, long) 1171 #undef VERIFY_FN 1172 1173 #define sysctl_createv(lg, cfl, rn, cn, fl, type, nm, desc, fn, qv, newp, ...) \ 1174 sysctl_createv(lg, cfl, rn, cn, fl, type, nm, desc, fn, qv, \ 1175 __sysctl_verify_##type##_arg(newp), __VA_ARGS__) 1176 1177 /* 1178 * miscellany 1179 */ 1180 void sysctl_dump(const struct sysctlnode *); 1181 void sysctl_free(struct sysctlnode *); 1182 void sysctl_teardown(struct sysctllog **); 1183 void sysctl_log_print(const struct sysctllog *); 1184 1185 #ifdef SYSCTL_INCLUDE_DESCR 1186 #define SYSCTL_DESCR(s) s 1187 #else /* SYSCTL_INCLUDE_DESCR */ 1188 #define SYSCTL_DESCR(s) NULL 1189 #endif /* SYSCTL_INCLUDE_DESCR */ 1190 1191 /* 1192 * simple interface similar to old interface for in-kernel consumption 1193 */ 1194 int old_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct lwp *); 1195 1196 /* 1197 * these helpers are in other files (XXX so should the nodes be) or 1198 * are used by more than one node 1199 */ 1200 int sysctl_hw_tapenames(SYSCTLFN_PROTO); 1201 int sysctl_hw_tapestats(SYSCTLFN_PROTO); 1202 int sysctl_kern_vnode(SYSCTLFN_PROTO); 1203 int sysctl_net_inet_ip_ports(SYSCTLFN_PROTO); 1204 int sysctl_consdev(SYSCTLFN_PROTO); 1205 int sysctl_root_device(SYSCTLFN_PROTO); 1206 int sysctl_vfs_generic_fstypes(SYSCTLFN_PROTO); 1207 1208 /* 1209 * primitive helper stubs 1210 */ 1211 int sysctl_needfunc(SYSCTLFN_PROTO); 1212 int sysctl_notavail(SYSCTLFN_PROTO); 1213 int sysctl_null(SYSCTLFN_PROTO); 1214 1215 int sysctl_copyin(struct lwp *, const void *, void *, size_t); 1216 int sysctl_copyout(struct lwp *, const void *, void *, size_t); 1217 int sysctl_copyinstr(struct lwp *, const void *, void *, size_t, size_t *); 1218 1219 u_int sysctl_map_flags(const u_int *, u_int); 1220 1221 MALLOC_DECLARE(M_SYSCTLNODE); 1222 MALLOC_DECLARE(M_SYSCTLDATA); 1223 1224 extern const u_int sysctl_lwpflagmap[]; 1225 1226 #else /* !_KERNEL */ 1227 #include <sys/cdefs.h> 1228 1229 typedef void *sysctlfn; 1230 1231 __BEGIN_DECLS 1232 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1233 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1234 int sysctlgetmibinfo(const char *, int *, u_int *, 1235 char *, size_t *, struct sysctlnode **, int); 1236 int sysctlnametomib(const char *, int *, size_t *); 1237 int proc_compare(const struct kinfo_proc2 *, const struct kinfo_lwp *, 1238 const struct kinfo_proc2 *, const struct kinfo_lwp *); 1239 void *asysctl(const int *, size_t, size_t *); 1240 void *asysctlbyname(const char *, size_t *); 1241 int __learn_tree(int *, u_int, struct sysctlnode *); 1242 __END_DECLS 1243 1244 #endif /* !_KERNEL */ 1245 1246 #ifdef __COMPAT_SYSCTL 1247 /* 1248 * old node definitions go here 1249 */ 1250 #endif /* __COMPAT_SYSCTL */ 1251 1252 /* 1253 * padding makes alignment magically "work" for 32/64 compatibility at 1254 * the expense of making things bigger on 32 bit platforms. 1255 */ 1256 #if defined(_LP64) || (BYTE_ORDER == LITTLE_ENDIAN) 1257 #define __sysc_pad(type) union { uint64_t __sysc_upad; \ 1258 struct { type __sysc_sdatum; } __sysc_ustr; } 1259 #else 1260 #define __sysc_pad(type) union { uint64_t __sysc_upad; \ 1261 struct { uint32_t __sysc_spad; type __sysc_sdatum; } __sysc_ustr; } 1262 #endif 1263 #define __sysc_unpad(x) x.__sysc_ustr.__sysc_sdatum 1264 1265 /* 1266 * The following is for gcc2, which doesn't handle __sysc_unpad(). 1267 * The code gets a little less ugly this way. 1268 */ 1269 #define sysc_init_field(field, value) \ 1270 .field = { .__sysc_ustr = { .__sysc_sdatum = (value), }, } 1271 1272 struct sysctlnode { 1273 uint32_t sysctl_flags; /* flags and type */ 1274 int32_t sysctl_num; /* mib number */ 1275 char sysctl_name[SYSCTL_NAMELEN]; /* node name */ 1276 uint32_t sysctl_ver; /* node's version vs. rest of tree */ 1277 uint32_t __rsvd; 1278 union { 1279 struct { 1280 uint32_t suc_csize; /* size of child node array */ 1281 uint32_t suc_clen; /* number of valid children */ 1282 __sysc_pad(struct sysctlnode*) _suc_child; /* array of child nodes */ 1283 } scu_child; 1284 struct { 1285 __sysc_pad(void*) _sud_data; /* pointer to external data */ 1286 __sysc_pad(size_t) _sud_offset; /* offset to data */ 1287 } scu_data; 1288 int32_t scu_alias; /* node this node refers to */ 1289 int32_t scu_idata; /* immediate "int" data */ 1290 u_quad_t scu_qdata; /* immediate "u_quad_t" data */ 1291 bool scu_bdata; /* immediate bool data */ 1292 } sysctl_un; 1293 __sysc_pad(size_t) _sysctl_size; /* size of instrumented data */ 1294 __sysc_pad(sysctlfn) _sysctl_func; /* access helper function */ 1295 __sysc_pad(struct sysctlnode*) _sysctl_parent; /* parent of this node */ 1296 __sysc_pad(const char *) _sysctl_desc; /* description of node */ 1297 }; 1298 1299 /* 1300 * padded data 1301 */ 1302 #define suc_child __sysc_unpad(_suc_child) 1303 #define sud_data __sysc_unpad(_sud_data) 1304 #define sud_offset __sysc_unpad(_sud_offset) 1305 #define sysctl_size __sysc_unpad(_sysctl_size) 1306 #define sysctl_func __sysc_unpad(_sysctl_func) 1307 #define sysctl_parent __sysc_unpad(_sysctl_parent) 1308 #define sysctl_desc __sysc_unpad(_sysctl_desc) 1309 1310 /* 1311 * nested data (may also be padded) 1312 */ 1313 #define sysctl_csize sysctl_un.scu_child.suc_csize 1314 #define sysctl_clen sysctl_un.scu_child.suc_clen 1315 #define sysctl_child sysctl_un.scu_child.suc_child 1316 #define sysctl_data sysctl_un.scu_data.sud_data 1317 #define sysctl_offset sysctl_un.scu_data.sud_offset 1318 #define sysctl_alias sysctl_un.scu_alias 1319 #define sysctl_idata sysctl_un.scu_idata 1320 #define sysctl_qdata sysctl_un.scu_qdata 1321 #define sysctl_bdata sysctl_un.scu_bdata 1322 1323 /* 1324 * when requesting a description of a node (a set of nodes, actually), 1325 * you get back an "array" of these, where the actual length of the 1326 * descr_str is noted in descr_len (which includes the trailing nul 1327 * byte), rounded up to the nearest four (sizeof(int32_t) actually). 1328 * 1329 * NEXT_DESCR() will take a pointer to a description and advance it to 1330 * the next description. 1331 */ 1332 struct sysctldesc { 1333 int32_t descr_num; /* mib number of node */ 1334 uint32_t descr_ver; /* version of node */ 1335 uint32_t descr_len; /* length of description string */ 1336 char descr_str[1]; /* not really 1...see above */ 1337 }; 1338 1339 #define __sysc_desc_roundup(x) ((((x) - 1) | (sizeof(int32_t) - 1)) + 1) 1340 #define __sysc_desc_len(l) (offsetof(struct sysctldesc, descr_str) +\ 1341 __sysc_desc_roundup(l)) 1342 #define __sysc_desc_adv(d, l) \ 1343 (/*XXXUNCONST ptr cast*/(struct sysctldesc *) \ 1344 __UNCONST(((const char*)(d)) + __sysc_desc_len(l))) 1345 #define NEXT_DESCR(d) __sysc_desc_adv((d), (d)->descr_len) 1346 1347 static __inline const struct sysctlnode * 1348 sysctl_rootof(const struct sysctlnode *n) 1349 { 1350 while (n->sysctl_parent != NULL) 1351 n = n->sysctl_parent; 1352 return (n); 1353 } 1354 1355 #endif /* !_SYS_SYSCTL_H_ */ 1356
Indexes created Sat Sep 20 22:09:52 GMT 2025