1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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 * $FreeBSD$ 36 */ 37 38 #ifndef _SYS_SYSCTL_H_ 39 #define _SYS_SYSCTL_H_ 40 41 #ifdef _KERNEL 42 #include <sys/queue.h> 43 #endif 44 45 struct thread; 46 /* 47 * Definitions for sysctl call. The sysctl call uses a hierarchical name 48 * for objects that can be examined or modified. The name is expressed as 49 * a sequence of integers. Like a file path name, the meaning of each 50 * component depends on its place in the hierarchy. The top-level and kern 51 * identifiers are defined here, and other identifiers are defined in the 52 * respective subsystem header files. 53 */ 54 55 #define CTL_MAXNAME 24 /* largest number of components supported */ 56 57 /* 58 * Each subsystem defined by sysctl defines a list of variables 59 * for that subsystem. Each name is either a node with further 60 * levels defined below it, or it is a leaf of some particular 61 * type given below. Each sysctl level defines a set of name/type 62 * pairs to be used by sysctl(8) in manipulating the subsystem. 63 */ 64 struct ctlname { 65 char *ctl_name; /* subsystem name */ 66 int ctl_type; /* type of name */ 67 }; 68 69 #define CTLTYPE 0xf /* mask for the type */ 70 #define CTLTYPE_NODE 1 /* name is a node */ 71 #define CTLTYPE_INT 2 /* name describes an integer */ 72 #define CTLTYPE_STRING 3 /* name describes a string */ 73 #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */ 74 #define CTLTYPE_OPAQUE 5 /* name describes a structure */ 75 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ 76 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ 77 #define CTLTYPE_LONG 7 /* name describes a long */ 78 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ 79 #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ 80 #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */ 81 #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */ 82 #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */ 83 #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */ 84 #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */ 85 #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */ 86 87 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ 88 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ 89 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) 90 #define CTLFLAG_DORMANT 0x20000000 /* This sysctl is not active yet */ 91 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ 92 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ 93 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ 94 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ 95 #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ 96 #define CTLMASK_SECURE 0x00F00000 /* Secure level */ 97 #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */ 98 #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) 99 #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) 100 #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ 101 #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ 102 #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ 103 #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ 104 #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ 105 #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ 106 #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ 107 #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) 108 109 /* 110 * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. 111 * 112 * Secure when the securelevel is raised to at least N. 113 */ 114 #define CTLSHIFT_SECURE 20 115 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) 116 #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) 117 #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) 118 119 /* 120 * USE THIS instead of a hardwired number from the categories below 121 * to get dynamically assigned sysctl entries using the linker-set 122 * technology. This is the way nearly all new sysctl variables should 123 * be implemented. 124 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); 125 */ 126 #define OID_AUTO (-1) 127 128 /* 129 * The starting number for dynamically-assigned entries. WARNING! 130 * ALL static sysctl entries should have numbers LESS than this! 131 */ 132 #define CTL_AUTO_START 0x100 133 134 #ifdef _KERNEL 135 #include <sys/linker_set.h> 136 137 #ifdef KLD_MODULE 138 /* XXX allow overspecification of type in external kernel modules */ 139 #define SYSCTL_CT_ASSERT_MASK CTLTYPE 140 #else 141 #define SYSCTL_CT_ASSERT_MASK 0 142 #endif 143 144 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ 145 intmax_t arg2, struct sysctl_req *req 146 147 /* definitions for sysctl_req 'lock' member */ 148 #define REQ_UNWIRED 1 149 #define REQ_WIRED 2 150 151 /* definitions for sysctl_req 'flags' member */ 152 #if defined(__aarch64__) || defined(__amd64__) || defined(__powerpc64__) ||\ 153 (defined(__mips__) && defined(__mips_n64)) 154 #define SCTL_MASK32 1 /* 32 bit emulation */ 155 #endif 156 157 /* 158 * This describes the access space for a sysctl request. This is needed 159 * so that we can use the interface from the kernel or from user-space. 160 */ 161 struct sysctl_req { 162 struct thread *td; /* used for access checking */ 163 int lock; /* wiring state */ 164 void *oldptr; 165 size_t oldlen; 166 size_t oldidx; 167 int (*oldfunc)(struct sysctl_req *, const void *, size_t); 168 const void *newptr; 169 size_t newlen; 170 size_t newidx; 171 int (*newfunc)(struct sysctl_req *, void *, size_t); 172 size_t validlen; 173 int flags; 174 }; 175 176 SLIST_HEAD(sysctl_oid_list, sysctl_oid); 177 178 /* 179 * This describes one "oid" in the MIB tree. Potentially more nodes can 180 * be hidden behind it, expanded by the handler. 181 */ 182 struct sysctl_oid { 183 struct sysctl_oid_list oid_children; 184 struct sysctl_oid_list *oid_parent; 185 SLIST_ENTRY(sysctl_oid) oid_link; 186 int oid_number; 187 u_int oid_kind; 188 void *oid_arg1; 189 intmax_t oid_arg2; 190 const char *oid_name; 191 int (*oid_handler)(SYSCTL_HANDLER_ARGS); 192 const char *oid_fmt; 193 int oid_refcnt; 194 u_int oid_running; 195 const char *oid_descr; 196 const char *oid_label; 197 }; 198 199 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) 200 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) 201 #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) 202 203 int sysctl_handle_bool(SYSCTL_HANDLER_ARGS); 204 int sysctl_handle_8(SYSCTL_HANDLER_ARGS); 205 int sysctl_handle_16(SYSCTL_HANDLER_ARGS); 206 int sysctl_handle_32(SYSCTL_HANDLER_ARGS); 207 int sysctl_handle_64(SYSCTL_HANDLER_ARGS); 208 int sysctl_handle_int(SYSCTL_HANDLER_ARGS); 209 int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); 210 int sysctl_handle_long(SYSCTL_HANDLER_ARGS); 211 int sysctl_handle_string(SYSCTL_HANDLER_ARGS); 212 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); 213 int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); 214 int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); 215 216 int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); 217 int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); 218 219 int sysctl_msec_to_sbintime(SYSCTL_HANDLER_ARGS); 220 int sysctl_usec_to_sbintime(SYSCTL_HANDLER_ARGS); 221 222 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 223 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 224 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 225 226 /* 227 * These functions are used to add/remove an oid from the mib. 228 */ 229 void sysctl_register_oid(struct sysctl_oid *oidp); 230 void sysctl_register_disabled_oid(struct sysctl_oid *oidp); 231 void sysctl_enable_oid(struct sysctl_oid *oidp); 232 void sysctl_unregister_oid(struct sysctl_oid *oidp); 233 234 /* Declare a static oid to allow child oids to be added to it. */ 235 #define SYSCTL_DECL(name) \ 236 extern struct sysctl_oid sysctl__##name 237 238 /* Hide these in macros. */ 239 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 240 #define SYSCTL_PARENT(oid_ptr) \ 241 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 242 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 243 oid_children) : (struct sysctl_oid *)NULL) 244 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 245 246 /* === Structs and macros related to context handling. === */ 247 248 /* All dynamically created sysctls can be tracked in a context list. */ 249 struct sysctl_ctx_entry { 250 struct sysctl_oid *entry; 251 TAILQ_ENTRY(sysctl_ctx_entry) link; 252 }; 253 254 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 255 256 #define SYSCTL_NODE_CHILDREN(parent, name) \ 257 sysctl__##parent##_##name.oid_children 258 259 #ifndef NO_SYSCTL_DESCR 260 #define __DESCR(d) d 261 #else 262 #define __DESCR(d) "" 263 #endif 264 265 /* This macro is only for internal use */ 266 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 267 struct sysctl_oid id = { \ 268 .oid_parent = (parent_child_head), \ 269 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 270 .oid_number = (nbr), \ 271 .oid_kind = (kind), \ 272 .oid_arg1 = (a1), \ 273 .oid_arg2 = (a2), \ 274 .oid_name = (name), \ 275 .oid_handler = (handler), \ 276 .oid_fmt = (fmt), \ 277 .oid_descr = __DESCR(descr), \ 278 .oid_label = (label), \ 279 }; \ 280 DATA_SET(sysctl_set, id) 281 282 /* This constructs a static "raw" MIB oid. */ 283 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 284 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \ 285 handler, fmt, descr, NULL) 286 287 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 288 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 289 SYSCTL_CHILDREN(&sysctl__##parent), \ 290 nbr, #name, kind, a1, a2, handler, fmt, descr, label) 291 292 /* This constructs a global "raw" MIB oid. */ 293 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 294 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 295 SYSCTL_CHILDREN(&sysctl__##parent), \ 296 nbr, #name, kind, a1, a2, handler, fmt, descr, label) 297 298 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 299 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL) 300 301 /* This constructs a root node from which other nodes can hang. */ 302 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 303 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 304 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 305 handler, "N", descr, NULL); \ 306 CTASSERT(((access) & CTLTYPE) == 0 || \ 307 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 308 309 /* This constructs a node from which other oids can hang. */ 310 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 311 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL) 312 313 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \ 314 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 315 NULL, 0, handler, "N", descr, label); \ 316 CTASSERT(((access) & CTLTYPE) == 0 || \ 317 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 318 319 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 320 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \ 321 handler, descr, NULL) 322 323 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \ 324 ({ \ 325 CTASSERT(((access) & CTLTYPE) == 0 || \ 326 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 327 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 328 NULL, 0, handler, "N", __DESCR(descr), label); \ 329 }) 330 331 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 332 ({ \ 333 CTASSERT(((access) & CTLTYPE) == 0 || \ 334 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 335 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 336 CTLTYPE_NODE|(access), \ 337 NULL, 0, handler, "N", __DESCR(descr), NULL); \ 338 }) 339 340 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 341 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 342 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 343 arg, len, sysctl_handle_string, "A", descr); \ 344 CTASSERT(((access) & CTLTYPE) == 0 || \ 345 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 346 347 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 348 ({ \ 349 char *__arg = (arg); \ 350 CTASSERT(((access) & CTLTYPE) == 0 || \ 351 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 352 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 353 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \ 354 NULL); \ 355 }) 356 357 /* Oid for a constant '\0' terminated string. */ 358 #define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \ 359 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 360 __DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \ 361 CTASSERT(!(access & CTLFLAG_WR)); \ 362 CTASSERT(((access) & CTLTYPE) == 0 || \ 363 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 364 365 #define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \ 366 ({ \ 367 char *__arg = __DECONST(char *, arg); \ 368 CTASSERT(!(access & CTLFLAG_WR)); \ 369 CTASSERT(((access) & CTLTYPE) == 0 || \ 370 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 371 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 372 __arg, 0, sysctl_handle_string, "A", __DESCR(descr), \ 373 NULL); \ 374 }) 375 376 /* Oid for a bool. If ptr is NULL, val is returned. */ 377 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) 378 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ 379 SYSCTL_OID(parent, nbr, name, \ 380 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 381 ptr, val, sysctl_handle_bool, "CU", descr); \ 382 CTASSERT(((access) & CTLTYPE) == 0 && \ 383 sizeof(bool) == sizeof(*(ptr))) 384 385 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ 386 ({ \ 387 bool *__ptr = (ptr); \ 388 CTASSERT(((access) & CTLTYPE) == 0); \ 389 sysctl_add_oid(ctx, parent, nbr, name, \ 390 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 391 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \ 392 NULL); \ 393 }) 394 395 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 396 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 397 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 398 SYSCTL_OID(parent, nbr, name, \ 399 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 400 ptr, val, sysctl_handle_8, "C", descr); \ 401 CTASSERT((((access) & CTLTYPE) == 0 || \ 402 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 403 sizeof(int8_t) == sizeof(*(ptr))) 404 405 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 406 ({ \ 407 int8_t *__ptr = (ptr); \ 408 CTASSERT(((access) & CTLTYPE) == 0 || \ 409 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 410 sysctl_add_oid(ctx, parent, nbr, name, \ 411 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 412 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \ 413 }) 414 415 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 416 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 417 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 418 SYSCTL_OID(parent, nbr, name, \ 419 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 420 ptr, val, sysctl_handle_8, "CU", descr); \ 421 CTASSERT((((access) & CTLTYPE) == 0 || \ 422 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 423 sizeof(uint8_t) == sizeof(*(ptr))) 424 425 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 426 ({ \ 427 uint8_t *__ptr = (ptr); \ 428 CTASSERT(((access) & CTLTYPE) == 0 || \ 429 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 430 sysctl_add_oid(ctx, parent, nbr, name, \ 431 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 432 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \ 433 }) 434 435 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 436 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 437 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 438 SYSCTL_OID(parent, nbr, name, \ 439 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 440 ptr, val, sysctl_handle_16, "S", descr); \ 441 CTASSERT((((access) & CTLTYPE) == 0 || \ 442 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 443 sizeof(int16_t) == sizeof(*(ptr))) 444 445 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 446 ({ \ 447 int16_t *__ptr = (ptr); \ 448 CTASSERT(((access) & CTLTYPE) == 0 || \ 449 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 450 sysctl_add_oid(ctx, parent, nbr, name, \ 451 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 452 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \ 453 }) 454 455 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 456 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 457 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 458 SYSCTL_OID(parent, nbr, name, \ 459 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 460 ptr, val, sysctl_handle_16, "SU", descr); \ 461 CTASSERT((((access) & CTLTYPE) == 0 || \ 462 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 463 sizeof(uint16_t) == sizeof(*(ptr))) 464 465 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 466 ({ \ 467 uint16_t *__ptr = (ptr); \ 468 CTASSERT(((access) & CTLTYPE) == 0 || \ 469 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 470 sysctl_add_oid(ctx, parent, nbr, name, \ 471 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 472 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \ 473 }) 474 475 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 476 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 477 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 478 SYSCTL_OID(parent, nbr, name, \ 479 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 480 ptr, val, sysctl_handle_32, "I", descr); \ 481 CTASSERT((((access) & CTLTYPE) == 0 || \ 482 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 483 sizeof(int32_t) == sizeof(*(ptr))) 484 485 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 486 ({ \ 487 int32_t *__ptr = (ptr); \ 488 CTASSERT(((access) & CTLTYPE) == 0 || \ 489 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 490 sysctl_add_oid(ctx, parent, nbr, name, \ 491 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 492 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \ 493 }) 494 495 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 496 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 497 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 498 SYSCTL_OID(parent, nbr, name, \ 499 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 500 ptr, val, sysctl_handle_32, "IU", descr); \ 501 CTASSERT((((access) & CTLTYPE) == 0 || \ 502 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 503 sizeof(uint32_t) == sizeof(*(ptr))) 504 505 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 506 ({ \ 507 uint32_t *__ptr = (ptr); \ 508 CTASSERT(((access) & CTLTYPE) == 0 || \ 509 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 510 sysctl_add_oid(ctx, parent, nbr, name, \ 511 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 512 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \ 513 }) 514 515 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 516 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 517 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 518 SYSCTL_OID(parent, nbr, name, \ 519 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 520 ptr, val, sysctl_handle_64, "Q", descr); \ 521 CTASSERT((((access) & CTLTYPE) == 0 || \ 522 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 523 sizeof(int64_t) == sizeof(*(ptr))) 524 525 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 526 ({ \ 527 int64_t *__ptr = (ptr); \ 528 CTASSERT(((access) & CTLTYPE) == 0 || \ 529 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 530 sysctl_add_oid(ctx, parent, nbr, name, \ 531 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 532 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ 533 }) 534 535 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 536 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 537 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 538 SYSCTL_OID(parent, nbr, name, \ 539 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 540 ptr, val, sysctl_handle_64, "QU", descr); \ 541 CTASSERT((((access) & CTLTYPE) == 0 || \ 542 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 543 sizeof(uint64_t) == sizeof(*(ptr))) 544 545 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 546 ({ \ 547 uint64_t *__ptr = (ptr); \ 548 CTASSERT(((access) & CTLTYPE) == 0 || \ 549 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 550 sysctl_add_oid(ctx, parent, nbr, name, \ 551 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 552 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ 553 }) 554 555 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 556 #define SYSCTL_NULL_INT_PTR ((int *)NULL) 557 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 558 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL) 559 560 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \ 561 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \ 562 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 563 ptr, val, sysctl_handle_int, "I", descr, label); \ 564 CTASSERT((((access) & CTLTYPE) == 0 || \ 565 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 566 sizeof(int) == sizeof(*(ptr))) 567 568 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 569 ({ \ 570 int *__ptr = (ptr); \ 571 CTASSERT(((access) & CTLTYPE) == 0 || \ 572 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 573 sysctl_add_oid(ctx, parent, nbr, name, \ 574 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 575 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \ 576 }) 577 578 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 579 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 580 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 581 SYSCTL_OID(parent, nbr, name, \ 582 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 583 ptr, val, sysctl_handle_int, "IU", descr); \ 584 CTASSERT((((access) & CTLTYPE) == 0 || \ 585 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 586 sizeof(unsigned) == sizeof(*(ptr))) 587 588 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 589 ({ \ 590 unsigned *__ptr = (ptr); \ 591 CTASSERT(((access) & CTLTYPE) == 0 || \ 592 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 593 sysctl_add_oid(ctx, parent, nbr, name, \ 594 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 595 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \ 596 }) 597 598 /* Oid for a long. The pointer must be non NULL. */ 599 #define SYSCTL_NULL_LONG_PTR ((long *)NULL) 600 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 601 SYSCTL_OID(parent, nbr, name, \ 602 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 603 ptr, val, sysctl_handle_long, "L", descr); \ 604 CTASSERT((((access) & CTLTYPE) == 0 || \ 605 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 606 sizeof(long) == sizeof(*(ptr))) 607 608 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 609 ({ \ 610 long *__ptr = (ptr); \ 611 CTASSERT(((access) & CTLTYPE) == 0 || \ 612 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 613 sysctl_add_oid(ctx, parent, nbr, name, \ 614 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 615 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \ 616 }) 617 618 /* Oid for an unsigned long. The pointer must be non NULL. */ 619 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 620 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 621 SYSCTL_OID(parent, nbr, name, \ 622 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 623 ptr, val, sysctl_handle_long, "LU", descr); \ 624 CTASSERT((((access) & CTLTYPE) == 0 || \ 625 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 626 sizeof(unsigned long) == sizeof(*(ptr))) 627 628 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 629 ({ \ 630 unsigned long *__ptr = (ptr); \ 631 CTASSERT(((access) & CTLTYPE) == 0 || \ 632 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 633 sysctl_add_oid(ctx, parent, nbr, name, \ 634 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 635 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \ 636 }) 637 638 /* Oid for a quad. The pointer must be non NULL. */ 639 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 640 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 641 SYSCTL_OID(parent, nbr, name, \ 642 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 643 ptr, val, sysctl_handle_64, "Q", descr); \ 644 CTASSERT((((access) & CTLTYPE) == 0 || \ 645 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 646 sizeof(int64_t) == sizeof(*(ptr))) 647 648 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 649 ({ \ 650 int64_t *__ptr = (ptr); \ 651 CTASSERT(((access) & CTLTYPE) == 0 || \ 652 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 653 sysctl_add_oid(ctx, parent, nbr, name, \ 654 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 655 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ 656 }) 657 658 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 659 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 660 SYSCTL_OID(parent, nbr, name, \ 661 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 662 ptr, val, sysctl_handle_64, "QU", descr); \ 663 CTASSERT((((access) & CTLTYPE) == 0 || \ 664 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 665 sizeof(uint64_t) == sizeof(*(ptr))) 666 667 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 668 ({ \ 669 uint64_t *__ptr = (ptr); \ 670 CTASSERT(((access) & CTLTYPE) == 0 || \ 671 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 672 sysctl_add_oid(ctx, parent, nbr, name, \ 673 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 674 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ 675 }) 676 677 /* Oid for a CPU dependent variable */ 678 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 679 ({ \ 680 struct sysctl_oid *__ret; \ 681 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 682 sizeof(unsigned) == sizeof(*(ptr))) && \ 683 ((access) & CTLTYPE) == 0); \ 684 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 685 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 686 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 687 (ptr), 0, sysctl_handle_64, "QU", \ 688 __DESCR(descr), NULL); \ 689 } else { \ 690 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 691 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 692 (ptr), 0, sysctl_handle_int, "IU", \ 693 __DESCR(descr), NULL); \ 694 } \ 695 __ret; \ 696 }) 697 698 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 699 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 700 SYSCTL_OID(parent, nbr, name, \ 701 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 702 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 703 CTASSERT((((access) & CTLTYPE) == 0 || \ 704 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 705 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 706 sizeof(uint64_t) == sizeof(**(ptr))) 707 708 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 709 ({ \ 710 counter_u64_t *__ptr = (ptr); \ 711 CTASSERT(((access) & CTLTYPE) == 0 || \ 712 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 713 sysctl_add_oid(ctx, parent, nbr, name, \ 714 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 715 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \ 716 NULL); \ 717 }) 718 719 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 720 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 721 SYSCTL_OID(parent, nbr, name, \ 722 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 723 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 724 CTASSERT((((access) & CTLTYPE) == 0 || \ 725 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 726 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 727 sizeof(uint64_t) == sizeof(**(ptr))) 728 729 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 730 ptr, len, descr) \ 731 ({ \ 732 counter_u64_t *__ptr = (ptr); \ 733 CTASSERT(((access) & CTLTYPE) == 0 || \ 734 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 735 sysctl_add_oid(ctx, parent, nbr, name, \ 736 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 737 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 738 __DESCR(descr), NULL); \ 739 }) 740 741 /* Oid for an opaque object. Specified by a pointer and a length. */ 742 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 743 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 744 ptr, len, sysctl_handle_opaque, fmt, descr); \ 745 CTASSERT(((access) & CTLTYPE) == 0 || \ 746 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 747 748 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 749 ({ \ 750 CTASSERT(((access) & CTLTYPE) == 0 || \ 751 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 752 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 753 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \ 754 }) 755 756 /* Oid for a struct. Specified by a pointer and a type. */ 757 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 758 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 759 ptr, sizeof(struct type), sysctl_handle_opaque, \ 760 "S," #type, descr); \ 761 CTASSERT(((access) & CTLTYPE) == 0 || \ 762 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 763 764 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 765 ({ \ 766 CTASSERT(((access) & CTLTYPE) == 0 || \ 767 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 768 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 769 (ptr), sizeof(struct type), \ 770 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \ 771 }) 772 773 /* Oid for a procedure. Specified by a pointer and an arg. */ 774 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 775 SYSCTL_OID(parent, nbr, name, (access), \ 776 ptr, arg, handler, fmt, descr); \ 777 CTASSERT(((access) & CTLTYPE) != 0) 778 779 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 780 ({ \ 781 CTASSERT(((access) & CTLTYPE) != 0); \ 782 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 783 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \ 784 }) 785 786 /* Oid to handle limits on uma(9) zone specified by pointer. */ 787 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 788 SYSCTL_OID(parent, nbr, name, \ 789 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 790 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 791 CTASSERT(((access) & CTLTYPE) == 0 || \ 792 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 793 794 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 795 ({ \ 796 uma_zone_t __ptr = (ptr); \ 797 CTASSERT(((access) & CTLTYPE) == 0 || \ 798 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 799 sysctl_add_oid(ctx, parent, nbr, name, \ 800 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 801 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \ 802 NULL); \ 803 }) 804 805 /* Oid to obtain current use of uma(9) zone specified by pointer. */ 806 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 807 SYSCTL_OID(parent, nbr, name, \ 808 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 809 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 810 CTASSERT(((access) & CTLTYPE) == 0 || \ 811 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 812 813 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 814 ({ \ 815 uma_zone_t __ptr = (ptr); \ 816 CTASSERT(((access) & CTLTYPE) == 0 || \ 817 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 818 sysctl_add_oid(ctx, parent, nbr, name, \ 819 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 820 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \ 821 NULL); \ 822 }) 823 824 /* OID expressing a sbintime_t as microseconds */ 825 #define SYSCTL_SBINTIME_USEC(parent, nbr, name, access, ptr, descr) \ 826 SYSCTL_OID(parent, nbr, name, \ 827 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 828 (ptr), 0, sysctl_usec_to_sbintime, "Q", descr); \ 829 CTASSERT(((access) & CTLTYPE) == 0 || \ 830 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) 831 #define SYSCTL_ADD_SBINTIME_USEC(ctx, parent, nbr, name, access, ptr, descr) \ 832 ({ \ 833 sbintime_t *__ptr = (ptr); \ 834 CTASSERT(((access) & CTLTYPE) == 0 || \ 835 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 836 sysctl_add_oid(ctx, parent, nbr, name, \ 837 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 838 __ptr, 0, sysctl_usec_to_sbintime, "Q", __DESCR(descr), \ 839 NULL); \ 840 }) 841 842 /* OID expressing a sbintime_t as milliseconds */ 843 #define SYSCTL_SBINTIME_MSEC(parent, nbr, name, access, ptr, descr) \ 844 SYSCTL_OID(parent, nbr, name, \ 845 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 846 (ptr), 0, sysctl_msec_to_sbintime, "Q", descr); \ 847 CTASSERT(((access) & CTLTYPE) == 0 || \ 848 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) 849 #define SYSCTL_ADD_SBINTIME_MSEC(ctx, parent, nbr, name, access, ptr, descr) \ 850 ({ \ 851 sbintime_t *__ptr = (ptr); \ 852 CTASSERT(((access) & CTLTYPE) == 0 || \ 853 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 854 sysctl_add_oid(ctx, parent, nbr, name, \ 855 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 856 __ptr, 0, sysctl_msec_to_sbintime, "Q", __DESCR(descr), \ 857 NULL); \ 858 }) 859 860 /* 861 * A macro to generate a read-only sysctl to indicate the presence of optional 862 * kernel features. 863 */ 864 #define FEATURE(name, desc) \ 865 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \ 866 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature") 867 868 #endif /* _KERNEL */ 869 870 /* 871 * Top-level identifiers 872 */ 873 #define CTL_UNSPEC 0 /* unused */ 874 #define CTL_KERN 1 /* "high kernel": proc, limits */ 875 #define CTL_VM 2 /* virtual memory */ 876 #define CTL_VFS 3 /* filesystem, mount type is next */ 877 #define CTL_NET 4 /* network, see socket.h */ 878 #define CTL_DEBUG 5 /* debugging parameters */ 879 #define CTL_HW 6 /* generic cpu/io */ 880 #define CTL_MACHDEP 7 /* machine dependent */ 881 #define CTL_USER 8 /* user-level */ 882 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 883 884 /* 885 * CTL_KERN identifiers 886 */ 887 #define KERN_OSTYPE 1 /* string: system version */ 888 #define KERN_OSRELEASE 2 /* string: system release */ 889 #define KERN_OSREV 3 /* int: system revision */ 890 #define KERN_VERSION 4 /* string: compile time info */ 891 #define KERN_MAXVNODES 5 /* int: max vnodes */ 892 #define KERN_MAXPROC 6 /* int: max processes */ 893 #define KERN_MAXFILES 7 /* int: max open files */ 894 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 895 #define KERN_SECURELVL 9 /* int: system security level */ 896 #define KERN_HOSTNAME 10 /* string: hostname */ 897 #define KERN_HOSTID 11 /* int: host identifier */ 898 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 899 #define KERN_VNODE 13 /* struct: vnode structures */ 900 #define KERN_PROC 14 /* struct: process entries */ 901 #define KERN_FILE 15 /* struct: file entries */ 902 #define KERN_PROF 16 /* node: kernel profiling info */ 903 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 904 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 905 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 906 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 907 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 908 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 909 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 910 #define KERN_OSRELDATE 24 /* int: kernel release date */ 911 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 912 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 913 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 914 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 915 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 916 #define KERN_IPC 30 /* node: anything related to IPC */ 917 #define KERN_DUMMY 31 /* unused */ 918 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 919 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 920 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 921 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 922 #define KERN_HOSTUUID 36 /* string: host UUID identifier */ 923 #define KERN_ARND 37 /* int: from arc4rand() */ 924 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */ 925 /* 926 * KERN_PROC subtypes 927 */ 928 #define KERN_PROC_ALL 0 /* everything */ 929 #define KERN_PROC_PID 1 /* by process id */ 930 #define KERN_PROC_PGRP 2 /* by process group id */ 931 #define KERN_PROC_SESSION 3 /* by session of pid */ 932 #define KERN_PROC_TTY 4 /* by controlling tty */ 933 #define KERN_PROC_UID 5 /* by effective uid */ 934 #define KERN_PROC_RUID 6 /* by real uid */ 935 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 936 #define KERN_PROC_PROC 8 /* only return procs */ 937 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 938 #define KERN_PROC_RGID 10 /* by real group id */ 939 #define KERN_PROC_GID 11 /* by effective group id */ 940 #define KERN_PROC_PATHNAME 12 /* path to executable */ 941 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 942 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 943 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 944 #define KERN_PROC_INC_THREAD 0x10 /* 945 * modifier for pid, pgrp, tty, 946 * uid, ruid, gid, rgid and proc 947 * This effectively uses 16-31 948 */ 949 #define KERN_PROC_VMMAP 32 /* VM map entries for process */ 950 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 951 #define KERN_PROC_GROUPS 34 /* process groups */ 952 #define KERN_PROC_ENV 35 /* get environment */ 953 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 954 #define KERN_PROC_RLIMIT 37 /* process resource limits */ 955 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 956 #define KERN_PROC_UMASK 39 /* process umask */ 957 #define KERN_PROC_OSREL 40 /* osreldate for process binary */ 958 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 959 #define KERN_PROC_CWD 42 /* process current working directory */ 960 #define KERN_PROC_NFDS 43 /* number of open file descriptors */ 961 962 /* 963 * KERN_IPC identifiers 964 */ 965 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 966 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 967 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 968 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 969 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 970 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 971 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 972 973 /* 974 * CTL_HW identifiers 975 */ 976 #define HW_MACHINE 1 /* string: machine class */ 977 #define HW_MODEL 2 /* string: specific machine model */ 978 #define HW_NCPU 3 /* int: number of cpus */ 979 #define HW_BYTEORDER 4 /* int: machine byte order */ 980 #define HW_PHYSMEM 5 /* int: total memory */ 981 #define HW_USERMEM 6 /* int: non-kernel memory */ 982 #define HW_PAGESIZE 7 /* int: software page size */ 983 #define HW_DISKNAMES 8 /* strings: disk drive names */ 984 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 985 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 986 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 987 #define HW_REALMEM 12 /* int: 'real' memory */ 988 989 /* 990 * CTL_USER definitions 991 */ 992 #define USER_CS_PATH 1 /* string: _CS_PATH */ 993 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 994 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 995 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 996 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 997 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 998 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 999 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 1000 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 1001 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 1002 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 1003 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 1004 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 1005 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 1006 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 1007 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 1008 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 1009 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 1010 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 1011 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 1012 1013 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 1014 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 1015 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 1016 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 1017 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 1018 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 1019 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 1020 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 1021 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 1022 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 1023 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 1024 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 1025 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 1026 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 1027 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 1028 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 1029 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 1030 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 1031 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 1032 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 1033 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 1034 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 1035 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 1036 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 1037 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 1038 1039 #define CTL_P1003_1B_MAXID 26 1040 1041 #ifdef _KERNEL 1042 1043 /* 1044 * Declare some common oids. 1045 */ 1046 extern struct sysctl_oid_list sysctl__children; 1047 SYSCTL_DECL(_kern); 1048 SYSCTL_DECL(_kern_features); 1049 SYSCTL_DECL(_kern_ipc); 1050 SYSCTL_DECL(_kern_proc); 1051 SYSCTL_DECL(_kern_sched); 1052 SYSCTL_DECL(_kern_sched_stats); 1053 SYSCTL_DECL(_sysctl); 1054 SYSCTL_DECL(_vm); 1055 SYSCTL_DECL(_vm_stats); 1056 SYSCTL_DECL(_vm_stats_misc); 1057 SYSCTL_DECL(_vfs); 1058 SYSCTL_DECL(_net); 1059 SYSCTL_DECL(_debug); 1060 SYSCTL_DECL(_debug_sizeof); 1061 SYSCTL_DECL(_dev); 1062 SYSCTL_DECL(_hw); 1063 SYSCTL_DECL(_hw_bus); 1064 SYSCTL_DECL(_hw_bus_devices); 1065 SYSCTL_DECL(_hw_bus_info); 1066 SYSCTL_DECL(_machdep); 1067 SYSCTL_DECL(_user); 1068 SYSCTL_DECL(_compat); 1069 SYSCTL_DECL(_regression); 1070 SYSCTL_DECL(_security); 1071 SYSCTL_DECL(_security_bsd); 1072 1073 extern char machine[]; 1074 extern char osrelease[]; 1075 extern char ostype[]; 1076 extern char kern_ident[]; 1077 1078 /* Dynamic oid handling */ 1079 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 1080 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 1081 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 1082 const char *fmt, const char *descr, const char *label); 1083 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 1084 int recurse); 1085 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 1086 int sysctl_move_oid(struct sysctl_oid *oidp, 1087 struct sysctl_oid_list *parent); 1088 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 1089 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 1090 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 1091 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 1092 struct sysctl_oid *oidp); 1093 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 1094 struct sysctl_oid *oidp); 1095 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 1096 struct sysctl_oid *oidp); 1097 1098 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1099 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1100 int flags); 1101 int kernel_sysctlbyname(struct thread *td, char *name, void *old, 1102 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1103 int flags); 1104 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1105 size_t *oldlenp, int inkernel, const void *new, size_t newlen, 1106 size_t *retval, int flags); 1107 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1108 int *nindx, struct sysctl_req *req); 1109 void sysctl_wlock(void); 1110 void sysctl_wunlock(void); 1111 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1112 1113 struct sbuf; 1114 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1115 struct sysctl_req *); 1116 #else /* !_KERNEL */ 1117 #include <sys/cdefs.h> 1118 1119 __BEGIN_DECLS 1120 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1121 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1122 int sysctlnametomib(const char *, int *, size_t *); 1123 __END_DECLS 1124 #endif /* _KERNEL */ 1125 1126 #endif /* !_SYS_SYSCTL_H_ */ 1127