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 int sysctl_sec_to_timeval(SYSCTL_HANDLER_ARGS); 222 223 int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); 224 int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); 225 int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); 226 227 /* 228 * These functions are used to add/remove an oid from the mib. 229 */ 230 void sysctl_register_oid(struct sysctl_oid *oidp); 231 void sysctl_register_disabled_oid(struct sysctl_oid *oidp); 232 void sysctl_enable_oid(struct sysctl_oid *oidp); 233 void sysctl_unregister_oid(struct sysctl_oid *oidp); 234 235 /* Declare a static oid to allow child oids to be added to it. */ 236 #define SYSCTL_DECL(name) \ 237 extern struct sysctl_oid sysctl__##name 238 239 /* Hide these in macros. */ 240 #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) 241 #define SYSCTL_PARENT(oid_ptr) \ 242 (((oid_ptr)->oid_parent != &sysctl__children) ? \ 243 __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ 244 oid_children) : (struct sysctl_oid *)NULL) 245 #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) 246 247 /* === Structs and macros related to context handling. === */ 248 249 /* All dynamically created sysctls can be tracked in a context list. */ 250 struct sysctl_ctx_entry { 251 struct sysctl_oid *entry; 252 TAILQ_ENTRY(sysctl_ctx_entry) link; 253 }; 254 255 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); 256 257 #define SYSCTL_NODE_CHILDREN(parent, name) \ 258 sysctl__##parent##_##name.oid_children 259 260 #ifndef NO_SYSCTL_DESCR 261 #define __DESCR(d) d 262 #else 263 #define __DESCR(d) "" 264 #endif 265 266 /* This macro is only for internal use */ 267 #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 268 struct sysctl_oid id = { \ 269 .oid_parent = (parent_child_head), \ 270 .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ 271 .oid_number = (nbr), \ 272 .oid_kind = (kind), \ 273 .oid_arg1 = (a1), \ 274 .oid_arg2 = (a2), \ 275 .oid_name = (name), \ 276 .oid_handler = (handler), \ 277 .oid_fmt = (fmt), \ 278 .oid_descr = __DESCR(descr), \ 279 .oid_label = (label), \ 280 }; \ 281 DATA_SET(sysctl_set, id) 282 283 /* This constructs a static "raw" MIB oid. */ 284 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 285 SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \ 286 handler, fmt, descr, NULL) 287 288 #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 289 static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 290 SYSCTL_CHILDREN(&sysctl__##parent), \ 291 nbr, #name, kind, a1, a2, handler, fmt, descr, label) 292 293 /* This constructs a global "raw" MIB oid. */ 294 #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ 295 SYSCTL_OID_RAW(sysctl__##parent##_##name, \ 296 SYSCTL_CHILDREN(&sysctl__##parent), \ 297 nbr, #name, kind, a1, a2, handler, fmt, descr, label) 298 299 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ 300 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL) 301 302 /* This constructs a root node from which other nodes can hang. */ 303 #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ 304 SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ 305 nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ 306 handler, "N", descr, NULL); \ 307 CTASSERT(((access) & CTLTYPE) == 0 || \ 308 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 309 310 /* This constructs a node from which other oids can hang. */ 311 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ 312 SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL) 313 314 #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \ 315 SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ 316 NULL, 0, handler, "N", descr, label); \ 317 CTASSERT(((access) & CTLTYPE) == 0 || \ 318 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) 319 320 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ 321 SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \ 322 handler, descr, NULL) 323 324 #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \ 325 ({ \ 326 CTASSERT(((access) & CTLTYPE) == 0 || \ 327 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 328 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ 329 NULL, 0, handler, "N", __DESCR(descr), label); \ 330 }) 331 332 #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ 333 ({ \ 334 CTASSERT(((access) & CTLTYPE) == 0 || \ 335 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ 336 sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ 337 CTLTYPE_NODE|(access), \ 338 NULL, 0, handler, "N", __DESCR(descr), NULL); \ 339 }) 340 341 /* Oid for a string. len can be 0 to indicate '\0' termination. */ 342 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ 343 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 344 arg, len, sysctl_handle_string, "A", descr); \ 345 CTASSERT(((access) & CTLTYPE) == 0 || \ 346 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 347 348 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ 349 ({ \ 350 char *__arg = (arg); \ 351 CTASSERT(((access) & CTLTYPE) == 0 || \ 352 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 353 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 354 __arg, len, sysctl_handle_string, "A", __DESCR(descr), \ 355 NULL); \ 356 }) 357 358 /* Oid for a constant '\0' terminated string. */ 359 #define SYSCTL_CONST_STRING(parent, nbr, name, access, arg, descr) \ 360 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ 361 __DECONST(char *, arg), 0, sysctl_handle_string, "A", descr); \ 362 CTASSERT(!(access & CTLFLAG_WR)); \ 363 CTASSERT(((access) & CTLTYPE) == 0 || \ 364 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) 365 366 #define SYSCTL_ADD_CONST_STRING(ctx, parent, nbr, name, access, arg, descr) \ 367 ({ \ 368 char *__arg = __DECONST(char *, arg); \ 369 CTASSERT(!(access & CTLFLAG_WR)); \ 370 CTASSERT(((access) & CTLTYPE) == 0 || \ 371 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ 372 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ 373 __arg, 0, sysctl_handle_string, "A", __DESCR(descr), \ 374 NULL); \ 375 }) 376 377 /* Oid for a bool. If ptr is NULL, val is returned. */ 378 #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) 379 #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ 380 SYSCTL_OID(parent, nbr, name, \ 381 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 382 ptr, val, sysctl_handle_bool, "CU", descr); \ 383 CTASSERT(((access) & CTLTYPE) == 0 && \ 384 sizeof(bool) == sizeof(*(ptr))) 385 386 #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ 387 ({ \ 388 bool *__ptr = (ptr); \ 389 CTASSERT(((access) & CTLTYPE) == 0); \ 390 sysctl_add_oid(ctx, parent, nbr, name, \ 391 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 392 __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \ 393 NULL); \ 394 }) 395 396 /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ 397 #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) 398 #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ 399 SYSCTL_OID(parent, nbr, name, \ 400 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 401 ptr, val, sysctl_handle_8, "C", descr); \ 402 CTASSERT((((access) & CTLTYPE) == 0 || \ 403 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ 404 sizeof(int8_t) == sizeof(*(ptr))) 405 406 #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ 407 ({ \ 408 int8_t *__ptr = (ptr); \ 409 CTASSERT(((access) & CTLTYPE) == 0 || \ 410 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ 411 sysctl_add_oid(ctx, parent, nbr, name, \ 412 CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ 413 __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \ 414 }) 415 416 /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ 417 #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) 418 #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ 419 SYSCTL_OID(parent, nbr, name, \ 420 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 421 ptr, val, sysctl_handle_8, "CU", descr); \ 422 CTASSERT((((access) & CTLTYPE) == 0 || \ 423 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ 424 sizeof(uint8_t) == sizeof(*(ptr))) 425 426 #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ 427 ({ \ 428 uint8_t *__ptr = (ptr); \ 429 CTASSERT(((access) & CTLTYPE) == 0 || \ 430 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ 431 sysctl_add_oid(ctx, parent, nbr, name, \ 432 CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ 433 __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \ 434 }) 435 436 /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ 437 #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) 438 #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ 439 SYSCTL_OID(parent, nbr, name, \ 440 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 441 ptr, val, sysctl_handle_16, "S", descr); \ 442 CTASSERT((((access) & CTLTYPE) == 0 || \ 443 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ 444 sizeof(int16_t) == sizeof(*(ptr))) 445 446 #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ 447 ({ \ 448 int16_t *__ptr = (ptr); \ 449 CTASSERT(((access) & CTLTYPE) == 0 || \ 450 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ 451 sysctl_add_oid(ctx, parent, nbr, name, \ 452 CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ 453 __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \ 454 }) 455 456 /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ 457 #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) 458 #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ 459 SYSCTL_OID(parent, nbr, name, \ 460 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 461 ptr, val, sysctl_handle_16, "SU", descr); \ 462 CTASSERT((((access) & CTLTYPE) == 0 || \ 463 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ 464 sizeof(uint16_t) == sizeof(*(ptr))) 465 466 #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ 467 ({ \ 468 uint16_t *__ptr = (ptr); \ 469 CTASSERT(((access) & CTLTYPE) == 0 || \ 470 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ 471 sysctl_add_oid(ctx, parent, nbr, name, \ 472 CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ 473 __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \ 474 }) 475 476 /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ 477 #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) 478 #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ 479 SYSCTL_OID(parent, nbr, name, \ 480 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 481 ptr, val, sysctl_handle_32, "I", descr); \ 482 CTASSERT((((access) & CTLTYPE) == 0 || \ 483 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ 484 sizeof(int32_t) == sizeof(*(ptr))) 485 486 #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ 487 ({ \ 488 int32_t *__ptr = (ptr); \ 489 CTASSERT(((access) & CTLTYPE) == 0 || \ 490 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ 491 sysctl_add_oid(ctx, parent, nbr, name, \ 492 CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ 493 __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \ 494 }) 495 496 /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ 497 #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) 498 #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ 499 SYSCTL_OID(parent, nbr, name, \ 500 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 501 ptr, val, sysctl_handle_32, "IU", descr); \ 502 CTASSERT((((access) & CTLTYPE) == 0 || \ 503 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ 504 sizeof(uint32_t) == sizeof(*(ptr))) 505 506 #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ 507 ({ \ 508 uint32_t *__ptr = (ptr); \ 509 CTASSERT(((access) & CTLTYPE) == 0 || \ 510 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ 511 sysctl_add_oid(ctx, parent, nbr, name, \ 512 CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ 513 __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \ 514 }) 515 516 /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ 517 #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) 518 #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ 519 SYSCTL_OID(parent, nbr, name, \ 520 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 521 ptr, val, sysctl_handle_64, "Q", descr); \ 522 CTASSERT((((access) & CTLTYPE) == 0 || \ 523 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 524 sizeof(int64_t) == sizeof(*(ptr))) 525 526 #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ 527 ({ \ 528 int64_t *__ptr = (ptr); \ 529 CTASSERT(((access) & CTLTYPE) == 0 || \ 530 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 531 sysctl_add_oid(ctx, parent, nbr, name, \ 532 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 533 __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ 534 }) 535 536 /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ 537 #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) 538 #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ 539 SYSCTL_OID(parent, nbr, name, \ 540 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 541 ptr, val, sysctl_handle_64, "QU", descr); \ 542 CTASSERT((((access) & CTLTYPE) == 0 || \ 543 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 544 sizeof(uint64_t) == sizeof(*(ptr))) 545 546 #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ 547 ({ \ 548 uint64_t *__ptr = (ptr); \ 549 CTASSERT(((access) & CTLTYPE) == 0 || \ 550 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 551 sysctl_add_oid(ctx, parent, nbr, name, \ 552 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 553 __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ 554 }) 555 556 /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ 557 #define SYSCTL_NULL_INT_PTR ((int *)NULL) 558 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ 559 SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL) 560 561 #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \ 562 SYSCTL_OID_WITH_LABEL(parent, nbr, name, \ 563 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 564 ptr, val, sysctl_handle_int, "I", descr, label); \ 565 CTASSERT((((access) & CTLTYPE) == 0 || \ 566 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ 567 sizeof(int) == sizeof(*(ptr))) 568 569 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ 570 ({ \ 571 int *__ptr = (ptr); \ 572 CTASSERT(((access) & CTLTYPE) == 0 || \ 573 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 574 sysctl_add_oid(ctx, parent, nbr, name, \ 575 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 576 __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \ 577 }) 578 579 /* Oid for an unsigned int. If ptr is NULL, val is returned. */ 580 #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) 581 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ 582 SYSCTL_OID(parent, nbr, name, \ 583 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 584 ptr, val, sysctl_handle_int, "IU", descr); \ 585 CTASSERT((((access) & CTLTYPE) == 0 || \ 586 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ 587 sizeof(unsigned) == sizeof(*(ptr))) 588 589 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ 590 ({ \ 591 unsigned *__ptr = (ptr); \ 592 CTASSERT(((access) & CTLTYPE) == 0 || \ 593 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ 594 sysctl_add_oid(ctx, parent, nbr, name, \ 595 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 596 __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \ 597 }) 598 599 /* Oid for a long. The pointer must be non NULL. */ 600 #define SYSCTL_NULL_LONG_PTR ((long *)NULL) 601 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ 602 SYSCTL_OID(parent, nbr, name, \ 603 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 604 ptr, val, sysctl_handle_long, "L", descr); \ 605 CTASSERT((((access) & CTLTYPE) == 0 || \ 606 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ 607 sizeof(long) == sizeof(*(ptr))) 608 609 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ 610 ({ \ 611 long *__ptr = (ptr); \ 612 CTASSERT(((access) & CTLTYPE) == 0 || \ 613 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ 614 sysctl_add_oid(ctx, parent, nbr, name, \ 615 CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ 616 __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \ 617 }) 618 619 /* Oid for an unsigned long. The pointer must be non NULL. */ 620 #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) 621 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ 622 SYSCTL_OID(parent, nbr, name, \ 623 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 624 ptr, val, sysctl_handle_long, "LU", descr); \ 625 CTASSERT((((access) & CTLTYPE) == 0 || \ 626 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ 627 sizeof(unsigned long) == sizeof(*(ptr))) 628 629 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ 630 ({ \ 631 unsigned long *__ptr = (ptr); \ 632 CTASSERT(((access) & CTLTYPE) == 0 || \ 633 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ 634 sysctl_add_oid(ctx, parent, nbr, name, \ 635 CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ 636 __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \ 637 }) 638 639 /* Oid for a quad. The pointer must be non NULL. */ 640 #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) 641 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ 642 SYSCTL_OID(parent, nbr, name, \ 643 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 644 ptr, val, sysctl_handle_64, "Q", descr); \ 645 CTASSERT((((access) & CTLTYPE) == 0 || \ 646 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ 647 sizeof(int64_t) == sizeof(*(ptr))) 648 649 #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ 650 ({ \ 651 int64_t *__ptr = (ptr); \ 652 CTASSERT(((access) & CTLTYPE) == 0 || \ 653 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 654 sysctl_add_oid(ctx, parent, nbr, name, \ 655 CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ 656 __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ 657 }) 658 659 #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) 660 #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ 661 SYSCTL_OID(parent, nbr, name, \ 662 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 663 ptr, val, sysctl_handle_64, "QU", descr); \ 664 CTASSERT((((access) & CTLTYPE) == 0 || \ 665 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 666 sizeof(uint64_t) == sizeof(*(ptr))) 667 668 #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ 669 ({ \ 670 uint64_t *__ptr = (ptr); \ 671 CTASSERT(((access) & CTLTYPE) == 0 || \ 672 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 673 sysctl_add_oid(ctx, parent, nbr, name, \ 674 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 675 __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ 676 }) 677 678 /* Oid for a CPU dependent variable */ 679 #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ 680 ({ \ 681 struct sysctl_oid *__ret; \ 682 CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ 683 sizeof(unsigned) == sizeof(*(ptr))) && \ 684 ((access) & CTLTYPE) == 0); \ 685 if (sizeof(uint64_t) == sizeof(*(ptr))) { \ 686 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 687 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 688 (ptr), 0, sysctl_handle_64, "QU", \ 689 __DESCR(descr), NULL); \ 690 } else { \ 691 __ret = sysctl_add_oid(ctx, parent, nbr, name, \ 692 CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ 693 (ptr), 0, sysctl_handle_int, "IU", \ 694 __DESCR(descr), NULL); \ 695 } \ 696 __ret; \ 697 }) 698 699 /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ 700 #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ 701 SYSCTL_OID(parent, nbr, name, \ 702 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 703 (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ 704 CTASSERT((((access) & CTLTYPE) == 0 || \ 705 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ 706 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 707 sizeof(uint64_t) == sizeof(**(ptr))) 708 709 #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ 710 ({ \ 711 counter_u64_t *__ptr = (ptr); \ 712 CTASSERT(((access) & CTLTYPE) == 0 || \ 713 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ 714 sysctl_add_oid(ctx, parent, nbr, name, \ 715 CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ 716 __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \ 717 NULL); \ 718 }) 719 720 /* Oid for an array of counter(9)s. The pointer and length must be non zero. */ 721 #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ 722 SYSCTL_OID(parent, nbr, name, \ 723 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 724 (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ 725 CTASSERT((((access) & CTLTYPE) == 0 || \ 726 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ 727 sizeof(counter_u64_t) == sizeof(*(ptr)) && \ 728 sizeof(uint64_t) == sizeof(**(ptr))) 729 730 #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ 731 ptr, len, descr) \ 732 ({ \ 733 counter_u64_t *__ptr = (ptr); \ 734 CTASSERT(((access) & CTLTYPE) == 0 || \ 735 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 736 sysctl_add_oid(ctx, parent, nbr, name, \ 737 CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ 738 __ptr, len, sysctl_handle_counter_u64_array, "S", \ 739 __DESCR(descr), NULL); \ 740 }) 741 742 /* Oid for an opaque object. Specified by a pointer and a length. */ 743 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ 744 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 745 ptr, len, sysctl_handle_opaque, fmt, descr); \ 746 CTASSERT(((access) & CTLTYPE) == 0 || \ 747 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 748 749 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ 750 ({ \ 751 CTASSERT(((access) & CTLTYPE) == 0 || \ 752 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 753 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 754 ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \ 755 }) 756 757 /* Oid for a struct. Specified by a pointer and a type. */ 758 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ 759 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 760 ptr, sizeof(struct type), sysctl_handle_opaque, \ 761 "S," #type, descr); \ 762 CTASSERT(((access) & CTLTYPE) == 0 || \ 763 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) 764 765 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ 766 ({ \ 767 CTASSERT(((access) & CTLTYPE) == 0 || \ 768 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ 769 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ 770 (ptr), sizeof(struct type), \ 771 sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \ 772 }) 773 774 /* Oid for a procedure. Specified by a pointer and an arg. */ 775 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 776 SYSCTL_OID(parent, nbr, name, (access), \ 777 ptr, arg, handler, fmt, descr); \ 778 CTASSERT(((access) & CTLTYPE) != 0) 779 780 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ 781 ({ \ 782 CTASSERT(((access) & CTLTYPE) != 0); \ 783 sysctl_add_oid(ctx, parent, nbr, name, (access), \ 784 (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \ 785 }) 786 787 /* Oid to handle limits on uma(9) zone specified by pointer. */ 788 #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ 789 SYSCTL_OID(parent, nbr, name, \ 790 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 791 (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ 792 CTASSERT(((access) & CTLTYPE) == 0 || \ 793 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 794 795 #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ 796 ({ \ 797 uma_zone_t __ptr = (ptr); \ 798 CTASSERT(((access) & CTLTYPE) == 0 || \ 799 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 800 sysctl_add_oid(ctx, parent, nbr, name, \ 801 CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ 802 __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \ 803 NULL); \ 804 }) 805 806 /* Oid to obtain current use of uma(9) zone specified by pointer. */ 807 #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ 808 SYSCTL_OID(parent, nbr, name, \ 809 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 810 (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ 811 CTASSERT(((access) & CTLTYPE) == 0 || \ 812 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 813 814 #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ 815 ({ \ 816 uma_zone_t __ptr = (ptr); \ 817 CTASSERT(((access) & CTLTYPE) == 0 || \ 818 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 819 sysctl_add_oid(ctx, parent, nbr, name, \ 820 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 821 __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \ 822 NULL); \ 823 }) 824 825 /* OID expressing a sbintime_t as microseconds */ 826 #define SYSCTL_SBINTIME_USEC(parent, nbr, name, access, ptr, descr) \ 827 SYSCTL_OID(parent, nbr, name, \ 828 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 829 (ptr), 0, sysctl_usec_to_sbintime, "Q", descr); \ 830 CTASSERT(((access) & CTLTYPE) == 0 || \ 831 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) 832 #define SYSCTL_ADD_SBINTIME_USEC(ctx, parent, nbr, name, access, ptr, descr) \ 833 ({ \ 834 sbintime_t *__ptr = (ptr); \ 835 CTASSERT(((access) & CTLTYPE) == 0 || \ 836 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 837 sysctl_add_oid(ctx, parent, nbr, name, \ 838 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 839 __ptr, 0, sysctl_usec_to_sbintime, "Q", __DESCR(descr), \ 840 NULL); \ 841 }) 842 843 /* OID expressing a sbintime_t as milliseconds */ 844 #define SYSCTL_SBINTIME_MSEC(parent, nbr, name, access, ptr, descr) \ 845 SYSCTL_OID(parent, nbr, name, \ 846 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 847 (ptr), 0, sysctl_msec_to_sbintime, "Q", descr); \ 848 CTASSERT(((access) & CTLTYPE) == 0 || \ 849 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) 850 #define SYSCTL_ADD_SBINTIME_MSEC(ctx, parent, nbr, name, access, ptr, descr) \ 851 ({ \ 852 sbintime_t *__ptr = (ptr); \ 853 CTASSERT(((access) & CTLTYPE) == 0 || \ 854 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ 855 sysctl_add_oid(ctx, parent, nbr, name, \ 856 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 857 __ptr, 0, sysctl_msec_to_sbintime, "Q", __DESCR(descr), \ 858 NULL); \ 859 }) 860 861 /* OID expressing a struct timeval as seconds */ 862 #define SYSCTL_TIMEVAL_SEC(parent, nbr, name, access, ptr, descr) \ 863 SYSCTL_OID(parent, nbr, name, \ 864 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 865 (ptr), 0, sysctl_sec_to_timeval, "I", descr); \ 866 CTASSERT(((access) & CTLTYPE) == 0 || \ 867 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) 868 #define SYSCTL_ADD_TIMEVAL_SEC(ctx, parent, nbr, name, access, ptr, descr) \ 869 ({ \ 870 struct timeval *__ptr = (ptr); \ 871 CTASSERT(((access) & CTLTYPE) == 0 || \ 872 ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ 873 sysctl_add_oid(ctx, parent, nbr, name, \ 874 CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ 875 __ptr, 0, sysctl_sec_to_timeval, "I", __DESCR(descr), \ 876 NULL); \ 877 }) 878 879 /* 880 * A macro to generate a read-only sysctl to indicate the presence of optional 881 * kernel features. 882 */ 883 #define FEATURE(name, desc) \ 884 SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \ 885 CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature") 886 887 #endif /* _KERNEL */ 888 889 /* 890 * Top-level identifiers 891 */ 892 #define CTL_UNSPEC 0 /* unused */ 893 #define CTL_KERN 1 /* "high kernel": proc, limits */ 894 #define CTL_VM 2 /* virtual memory */ 895 #define CTL_VFS 3 /* filesystem, mount type is next */ 896 #define CTL_NET 4 /* network, see socket.h */ 897 #define CTL_DEBUG 5 /* debugging parameters */ 898 #define CTL_HW 6 /* generic cpu/io */ 899 #define CTL_MACHDEP 7 /* machine dependent */ 900 #define CTL_USER 8 /* user-level */ 901 #define CTL_P1003_1B 9 /* POSIX 1003.1B */ 902 903 /* 904 * CTL_KERN identifiers 905 */ 906 #define KERN_OSTYPE 1 /* string: system version */ 907 #define KERN_OSRELEASE 2 /* string: system release */ 908 #define KERN_OSREV 3 /* int: system revision */ 909 #define KERN_VERSION 4 /* string: compile time info */ 910 #define KERN_MAXVNODES 5 /* int: max vnodes */ 911 #define KERN_MAXPROC 6 /* int: max processes */ 912 #define KERN_MAXFILES 7 /* int: max open files */ 913 #define KERN_ARGMAX 8 /* int: max arguments to exec */ 914 #define KERN_SECURELVL 9 /* int: system security level */ 915 #define KERN_HOSTNAME 10 /* string: hostname */ 916 #define KERN_HOSTID 11 /* int: host identifier */ 917 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ 918 #define KERN_VNODE 13 /* struct: vnode structures */ 919 #define KERN_PROC 14 /* struct: process entries */ 920 #define KERN_FILE 15 /* struct: file entries */ 921 #define KERN_PROF 16 /* node: kernel profiling info */ 922 #define KERN_POSIX1 17 /* int: POSIX.1 version */ 923 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ 924 #define KERN_JOB_CONTROL 19 /* int: is job control available */ 925 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ 926 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ 927 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 928 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ 929 #define KERN_OSRELDATE 24 /* int: kernel release date */ 930 #define KERN_NTP_PLL 25 /* node: NTP PLL control */ 931 #define KERN_BOOTFILE 26 /* string: name of booted kernel */ 932 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ 933 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ 934 #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ 935 #define KERN_IPC 30 /* node: anything related to IPC */ 936 #define KERN_DUMMY 31 /* unused */ 937 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ 938 #define KERN_USRSTACK 33 /* int: address of USRSTACK */ 939 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ 940 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ 941 #define KERN_HOSTUUID 36 /* string: host UUID identifier */ 942 #define KERN_ARND 37 /* int: from arc4rand() */ 943 #define KERN_MAXPHYS 38 /* int: MAXPHYS value */ 944 /* 945 * KERN_PROC subtypes 946 */ 947 #define KERN_PROC_ALL 0 /* everything */ 948 #define KERN_PROC_PID 1 /* by process id */ 949 #define KERN_PROC_PGRP 2 /* by process group id */ 950 #define KERN_PROC_SESSION 3 /* by session of pid */ 951 #define KERN_PROC_TTY 4 /* by controlling tty */ 952 #define KERN_PROC_UID 5 /* by effective uid */ 953 #define KERN_PROC_RUID 6 /* by real uid */ 954 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ 955 #define KERN_PROC_PROC 8 /* only return procs */ 956 #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ 957 #define KERN_PROC_RGID 10 /* by real group id */ 958 #define KERN_PROC_GID 11 /* by effective group id */ 959 #define KERN_PROC_PATHNAME 12 /* path to executable */ 960 #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ 961 #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ 962 #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ 963 #define KERN_PROC_INC_THREAD 0x10 /* 964 * modifier for pid, pgrp, tty, 965 * uid, ruid, gid, rgid and proc 966 * This effectively uses 16-31 967 */ 968 #define KERN_PROC_VMMAP 32 /* VM map entries for process */ 969 #define KERN_PROC_FILEDESC 33 /* File descriptors for process */ 970 #define KERN_PROC_GROUPS 34 /* process groups */ 971 #define KERN_PROC_ENV 35 /* get environment */ 972 #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ 973 #define KERN_PROC_RLIMIT 37 /* process resource limits */ 974 #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ 975 #define KERN_PROC_UMASK 39 /* process umask */ 976 #define KERN_PROC_OSREL 40 /* osreldate for process binary */ 977 #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ 978 #define KERN_PROC_CWD 42 /* process current working directory */ 979 #define KERN_PROC_NFDS 43 /* number of open file descriptors */ 980 981 /* 982 * KERN_IPC identifiers 983 */ 984 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ 985 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ 986 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ 987 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ 988 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ 989 #define KIPC_MAX_HDR 6 /* int: max total length of headers */ 990 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ 991 992 /* 993 * CTL_HW identifiers 994 */ 995 #define HW_MACHINE 1 /* string: machine class */ 996 #define HW_MODEL 2 /* string: specific machine model */ 997 #define HW_NCPU 3 /* int: number of cpus */ 998 #define HW_BYTEORDER 4 /* int: machine byte order */ 999 #define HW_PHYSMEM 5 /* int: total memory */ 1000 #define HW_USERMEM 6 /* int: non-kernel memory */ 1001 #define HW_PAGESIZE 7 /* int: software page size */ 1002 #define HW_DISKNAMES 8 /* strings: disk drive names */ 1003 #define HW_DISKSTATS 9 /* struct: diskstats[] */ 1004 #define HW_FLOATINGPT 10 /* int: has HW floating point? */ 1005 #define HW_MACHINE_ARCH 11 /* string: machine architecture */ 1006 #define HW_REALMEM 12 /* int: 'real' memory */ 1007 1008 /* 1009 * CTL_USER definitions 1010 */ 1011 #define USER_CS_PATH 1 /* string: _CS_PATH */ 1012 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ 1013 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ 1014 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ 1015 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ 1016 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ 1017 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ 1018 #define USER_LINE_MAX 8 /* int: LINE_MAX */ 1019 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ 1020 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ 1021 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ 1022 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ 1023 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ 1024 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ 1025 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ 1026 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ 1027 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ 1028 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ 1029 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ 1030 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ 1031 1032 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ 1033 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ 1034 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ 1035 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ 1036 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ 1037 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ 1038 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ 1039 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ 1040 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ 1041 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ 1042 #define CTL_P1003_1B_FSYNC 11 /* boolean */ 1043 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ 1044 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ 1045 #define CTL_P1003_1B_TIMERS 14 /* boolean */ 1046 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ 1047 #define CTL_P1003_1B_AIO_MAX 16 /* int */ 1048 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ 1049 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ 1050 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ 1051 #define CTL_P1003_1B_PAGESIZE 20 /* int */ 1052 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ 1053 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ 1054 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ 1055 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ 1056 #define CTL_P1003_1B_TIMER_MAX 25 /* int */ 1057 1058 #define CTL_P1003_1B_MAXID 26 1059 1060 #ifdef _KERNEL 1061 1062 /* 1063 * Declare some common oids. 1064 */ 1065 extern struct sysctl_oid_list sysctl__children; 1066 SYSCTL_DECL(_kern); 1067 SYSCTL_DECL(_kern_features); 1068 SYSCTL_DECL(_kern_ipc); 1069 SYSCTL_DECL(_kern_proc); 1070 SYSCTL_DECL(_kern_sched); 1071 SYSCTL_DECL(_kern_sched_stats); 1072 SYSCTL_DECL(_sysctl); 1073 SYSCTL_DECL(_vm); 1074 SYSCTL_DECL(_vm_stats); 1075 SYSCTL_DECL(_vm_stats_misc); 1076 SYSCTL_DECL(_vfs); 1077 SYSCTL_DECL(_net); 1078 SYSCTL_DECL(_debug); 1079 SYSCTL_DECL(_debug_sizeof); 1080 SYSCTL_DECL(_dev); 1081 SYSCTL_DECL(_hw); 1082 SYSCTL_DECL(_hw_bus); 1083 SYSCTL_DECL(_hw_bus_devices); 1084 SYSCTL_DECL(_hw_bus_info); 1085 SYSCTL_DECL(_machdep); 1086 SYSCTL_DECL(_user); 1087 SYSCTL_DECL(_compat); 1088 SYSCTL_DECL(_regression); 1089 SYSCTL_DECL(_security); 1090 SYSCTL_DECL(_security_bsd); 1091 1092 extern char machine[]; 1093 extern char osrelease[]; 1094 extern char ostype[]; 1095 extern char kern_ident[]; 1096 1097 /* Dynamic oid handling */ 1098 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, 1099 struct sysctl_oid_list *parent, int nbr, const char *name, int kind, 1100 void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), 1101 const char *fmt, const char *descr, const char *label); 1102 int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, 1103 int recurse); 1104 void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); 1105 int sysctl_move_oid(struct sysctl_oid *oidp, 1106 struct sysctl_oid_list *parent); 1107 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); 1108 int sysctl_ctx_init(struct sysctl_ctx_list *clist); 1109 int sysctl_ctx_free(struct sysctl_ctx_list *clist); 1110 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, 1111 struct sysctl_oid *oidp); 1112 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, 1113 struct sysctl_oid *oidp); 1114 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, 1115 struct sysctl_oid *oidp); 1116 1117 int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1118 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1119 int flags); 1120 int kernel_sysctlbyname(struct thread *td, char *name, void *old, 1121 size_t *oldlenp, void *new, size_t newlen, size_t *retval, 1122 int flags); 1123 int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, 1124 size_t *oldlenp, int inkernel, const void *new, size_t newlen, 1125 size_t *retval, int flags); 1126 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, 1127 int *nindx, struct sysctl_req *req); 1128 void sysctl_wlock(void); 1129 void sysctl_wunlock(void); 1130 int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); 1131 int kern___sysctlbyname(struct thread *td, const char *name, 1132 size_t namelen, void *old, size_t *oldlenp, void *new, 1133 size_t newlen, size_t *retval, int flags, bool inkernel); 1134 1135 struct sbuf; 1136 struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, 1137 struct sysctl_req *); 1138 #else /* !_KERNEL */ 1139 #include <sys/cdefs.h> 1140 1141 __BEGIN_DECLS 1142 int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); 1143 int sysctlbyname(const char *, void *, size_t *, const void *, size_t); 1144 int sysctlnametomib(const char *, int *, size_t *); 1145 __END_DECLS 1146 #endif /* _KERNEL */ 1147 1148 #endif /* !_SYS_SYSCTL_H_ */ 1149