Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/sys/user.h
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1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1989, 1991, 1993 5 * The Regents of the University of California. 6 * Copyright (c) 2007 Robert N. M. Watson 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)user.h 8.2 (Berkeley) 9/23/93 34 * $FreeBSD$ 35 */ 36 37 #ifndef _SYS_USER_H_ 38 #define _SYS_USER_H_ 39 40 #include <machine/pcb.h> 41 #ifndef _KERNEL 42 /* stuff that *used* to be included by user.h, or is now needed */ 43 #include <sys/errno.h> 44 #include <sys/time.h> 45 #include <sys/resource.h> 46 #include <sys/ucred.h> 47 #include <sys/uio.h> 48 #include <sys/queue.h> 49 #include <sys/_lock.h> 50 #include <sys/_mutex.h> 51 #include <sys/proc.h> 52 #include <vm/vm.h> /* XXX */ 53 #include <vm/vm_param.h> /* XXX */ 54 #include <vm/pmap.h> /* XXX */ 55 #include <vm/vm_map.h> /* XXX */ 56 #endif /* !_KERNEL */ 57 #ifndef _SYS_RESOURCEVAR_H_ 58 #include <sys/resourcevar.h> 59 #endif 60 #ifndef _SYS_SIGNALVAR_H_ 61 #include <sys/signalvar.h> 62 #endif 63 #ifndef _SYS_SOCKET_VAR_H_ 64 #include <sys/socket.h> 65 #endif 66 #include <sys/caprights.h> 67 68 /* 69 * KERN_PROC subtype ops return arrays of selected proc structure entries: 70 * 71 * This struct includes several arrays of spare space, with different arrays 72 * for different standard C-types. When adding new variables to this struct, 73 * the space for byte-aligned data should be taken from the ki_sparestring, 74 * pointers from ki_spareptrs, word-aligned data from ki_spareints, and 75 * doubleword-aligned data from ki_sparelongs. Make sure the space for new 76 * variables come from the array which matches the size and alignment of 77 * those variables on ALL hardware platforms, and then adjust the appropriate 78 * KI_NSPARE_* value(s) to match. 79 * 80 * Always verify that sizeof(struct kinfo_proc) == KINFO_PROC_SIZE on all 81 * platforms after you have added new variables. Note that if you change 82 * the value of KINFO_PROC_SIZE, then many userland programs will stop 83 * working until they are recompiled! 84 * 85 * Once you have added the new field, you will need to add code to initialize 86 * it in two places: function fill_kinfo_proc in sys/kern/kern_proc.c and 87 * function kvm_proclist in lib/libkvm/kvm_proc.c . 88 */ 89 #define KI_NSPARE_INT 2 90 #define KI_NSPARE_LONG 12 91 #define KI_NSPARE_PTR 5 92 93 #ifndef _KERNEL 94 #ifndef KINFO_PROC_SIZE 95 #error "Unknown architecture" 96 #endif 97 #endif /* !_KERNEL */ 98 99 #define WMESGLEN 8 /* size of returned wchan message */ 100 #define LOCKNAMELEN 8 /* size of returned lock name */ 101 #define TDNAMLEN 16 /* size of returned thread name */ 102 #define COMMLEN 19 /* size of returned ki_comm name */ 103 #define KI_EMULNAMELEN 16 /* size of returned ki_emul */ 104 #define KI_NGROUPS 16 /* number of groups in ki_groups */ 105 #define LOGNAMELEN 17 /* size of returned ki_login */ 106 #define LOGINCLASSLEN 17 /* size of returned ki_loginclass */ 107 108 #ifndef BURN_BRIDGES 109 #define OCOMMLEN TDNAMLEN 110 #define ki_ocomm ki_tdname 111 #endif 112 113 /* Flags for the process credential. */ 114 #define KI_CRF_CAPABILITY_MODE 0x00000001 115 /* 116 * Steal a bit from ki_cr_flags to indicate that the cred had more than 117 * KI_NGROUPS groups. 118 */ 119 #define KI_CRF_GRP_OVERFLOW 0x80000000 120 121 struct kinfo_proc { 122 int ki_structsize; /* size of this structure */ 123 int ki_layout; /* reserved: layout identifier */ 124 struct pargs *ki_args; /* address of command arguments */ 125 struct proc *ki_paddr; /* address of proc */ 126 struct user *ki_addr; /* kernel virtual addr of u-area */ 127 struct vnode *ki_tracep; /* pointer to trace file */ 128 struct vnode *ki_textvp; /* pointer to executable file */ 129 struct filedesc *ki_fd; /* pointer to open file info */ 130 struct vmspace *ki_vmspace; /* pointer to kernel vmspace struct */ 131 const void *ki_wchan; /* sleep address */ 132 pid_t ki_pid; /* Process identifier */ 133 pid_t ki_ppid; /* parent process id */ 134 pid_t ki_pgid; /* process group id */ 135 pid_t ki_tpgid; /* tty process group id */ 136 pid_t ki_sid; /* Process session ID */ 137 pid_t ki_tsid; /* Terminal session ID */ 138 short ki_jobc; /* job control counter */ 139 short ki_spare_short1; /* unused (just here for alignment) */ 140 uint32_t ki_tdev_freebsd11; /* controlling tty dev */ 141 sigset_t ki_siglist; /* Signals arrived but not delivered */ 142 sigset_t ki_sigmask; /* Current signal mask */ 143 sigset_t ki_sigignore; /* Signals being ignored */ 144 sigset_t ki_sigcatch; /* Signals being caught by user */ 145 uid_t ki_uid; /* effective user id */ 146 uid_t ki_ruid; /* Real user id */ 147 uid_t ki_svuid; /* Saved effective user id */ 148 gid_t ki_rgid; /* Real group id */ 149 gid_t ki_svgid; /* Saved effective group id */ 150 short ki_ngroups; /* number of groups */ 151 short ki_spare_short2; /* unused (just here for alignment) */ 152 gid_t ki_groups[KI_NGROUPS]; /* groups */ 153 vm_size_t ki_size; /* virtual size */ 154 segsz_t ki_rssize; /* current resident set size in pages */ 155 segsz_t ki_swrss; /* resident set size before last swap */ 156 segsz_t ki_tsize; /* text size (pages) XXX */ 157 segsz_t ki_dsize; /* data size (pages) XXX */ 158 segsz_t ki_ssize; /* stack size (pages) */ 159 u_short ki_xstat; /* Exit status for wait & stop signal */ 160 u_short ki_acflag; /* Accounting flags */ 161 fixpt_t ki_pctcpu; /* %cpu for process during ki_swtime */ 162 u_int ki_estcpu; /* Time averaged value of ki_cpticks */ 163 u_int ki_slptime; /* Time since last blocked */ 164 u_int ki_swtime; /* Time swapped in or out */ 165 u_int ki_cow; /* number of copy-on-write faults */ 166 u_int64_t ki_runtime; /* Real time in microsec */ 167 struct timeval ki_start; /* starting time */ 168 struct timeval ki_childtime; /* time used by process children */ 169 long ki_flag; /* P_* flags */ 170 long ki_kiflag; /* KI_* flags (below) */ 171 int ki_traceflag; /* Kernel trace points */ 172 char ki_stat; /* S* process status */ 173 signed char ki_nice; /* Process "nice" value */ 174 char ki_lock; /* Process lock (prevent swap) count */ 175 char ki_rqindex; /* Run queue index */ 176 u_char ki_oncpu_old; /* Which cpu we are on (legacy) */ 177 u_char ki_lastcpu_old; /* Last cpu we were on (legacy) */ 178 char ki_tdname[TDNAMLEN+1]; /* thread name */ 179 char ki_wmesg[WMESGLEN+1]; /* wchan message */ 180 char ki_login[LOGNAMELEN+1]; /* setlogin name */ 181 char ki_lockname[LOCKNAMELEN+1]; /* lock name */ 182 char ki_comm[COMMLEN+1]; /* command name */ 183 char ki_emul[KI_EMULNAMELEN+1]; /* emulation name */ 184 char ki_loginclass[LOGINCLASSLEN+1]; /* login class */ 185 char ki_moretdname[MAXCOMLEN-TDNAMLEN+1]; /* more thread name */ 186 /* 187 * When adding new variables, take space for char-strings from the 188 * front of ki_sparestrings, and ints from the end of ki_spareints. 189 * That way the spare room from both arrays will remain contiguous. 190 */ 191 char ki_sparestrings[46]; /* spare string space */ 192 int ki_spareints[KI_NSPARE_INT]; /* spare room for growth */ 193 uint64_t ki_tdev; /* controlling tty dev */ 194 int ki_oncpu; /* Which cpu we are on */ 195 int ki_lastcpu; /* Last cpu we were on */ 196 int ki_tracer; /* Pid of tracing process */ 197 int ki_flag2; /* P2_* flags */ 198 int ki_fibnum; /* Default FIB number */ 199 u_int ki_cr_flags; /* Credential flags */ 200 int ki_jid; /* Process jail ID */ 201 int ki_numthreads; /* XXXKSE number of threads in total */ 202 lwpid_t ki_tid; /* XXXKSE thread id */ 203 struct priority ki_pri; /* process priority */ 204 struct rusage ki_rusage; /* process rusage statistics */ 205 /* XXX - most fields in ki_rusage_ch are not (yet) filled in */ 206 struct rusage ki_rusage_ch; /* rusage of children processes */ 207 struct pcb *ki_pcb; /* kernel virtual addr of pcb */ 208 void *ki_kstack; /* kernel virtual addr of stack */ 209 void *ki_udata; /* User convenience pointer */ 210 struct thread *ki_tdaddr; /* address of thread */ 211 /* 212 * When adding new variables, take space for pointers from the 213 * front of ki_spareptrs, and longs from the end of ki_sparelongs. 214 * That way the spare room from both arrays will remain contiguous. 215 */ 216 struct pwddesc *ki_pd; /* pointer to process paths info */ 217 void *ki_spareptrs[KI_NSPARE_PTR]; /* spare room for growth */ 218 long ki_sparelongs[KI_NSPARE_LONG]; /* spare room for growth */ 219 long ki_sflag; /* PS_* flags */ 220 long ki_tdflags; /* XXXKSE kthread flag */ 221 }; 222 void fill_kinfo_proc(struct proc *, struct kinfo_proc *); 223 /* XXX - the following two defines are temporary */ 224 #define ki_childstime ki_rusage_ch.ru_stime 225 #define ki_childutime ki_rusage_ch.ru_utime 226 227 /* 228 * Legacy PS_ flag. This moved to p_flag but is maintained for 229 * compatibility. 230 */ 231 #define PS_INMEM 0x00001 /* Loaded into memory. */ 232 233 /* ki_sessflag values */ 234 #define KI_CTTY 0x00000001 /* controlling tty vnode active */ 235 #define KI_SLEADER 0x00000002 /* session leader */ 236 #define KI_LOCKBLOCK 0x00000004 /* proc blocked on lock ki_lockname */ 237 238 /* 239 * This used to be the per-process structure containing data that 240 * isn't needed in core when the process is swapped out, but now it 241 * remains only for the benefit of a.out core dumps. 242 */ 243 struct user { 244 struct pstats u_stats; /* *p_stats */ 245 struct kinfo_proc u_kproc; /* eproc */ 246 }; 247 248 /* 249 * The KERN_PROC_FILE sysctl allows a process to dump the file descriptor 250 * array of another process. 251 */ 252 #define KF_ATTR_VALID 0x0001 253 254 #define KF_TYPE_NONE 0 255 #define KF_TYPE_VNODE 1 256 #define KF_TYPE_SOCKET 2 257 #define KF_TYPE_PIPE 3 258 #define KF_TYPE_FIFO 4 259 #define KF_TYPE_KQUEUE 5 260 /* was KF_TYPE_CRYPTO 6 */ 261 #define KF_TYPE_MQUEUE 7 262 #define KF_TYPE_SHM 8 263 #define KF_TYPE_SEM 9 264 #define KF_TYPE_PTS 10 265 #define KF_TYPE_PROCDESC 11 266 #define KF_TYPE_DEV 12 267 #define KF_TYPE_EVENTFD 13 268 #define KF_TYPE_UNKNOWN 255 269 270 #define KF_VTYPE_VNON 0 271 #define KF_VTYPE_VREG 1 272 #define KF_VTYPE_VDIR 2 273 #define KF_VTYPE_VBLK 3 274 #define KF_VTYPE_VCHR 4 275 #define KF_VTYPE_VLNK 5 276 #define KF_VTYPE_VSOCK 6 277 #define KF_VTYPE_VFIFO 7 278 #define KF_VTYPE_VBAD 8 279 #define KF_VTYPE_UNKNOWN 255 280 281 #define KF_FD_TYPE_CWD -1 /* Current working directory */ 282 #define KF_FD_TYPE_ROOT -2 /* Root directory */ 283 #define KF_FD_TYPE_JAIL -3 /* Jail directory */ 284 #define KF_FD_TYPE_TRACE -4 /* Ktrace vnode */ 285 #define KF_FD_TYPE_TEXT -5 /* Text vnode */ 286 #define KF_FD_TYPE_CTTY -6 /* Controlling terminal */ 287 288 #define KF_FLAG_READ 0x00000001 289 #define KF_FLAG_WRITE 0x00000002 290 #define KF_FLAG_APPEND 0x00000004 291 #define KF_FLAG_ASYNC 0x00000008 292 #define KF_FLAG_FSYNC 0x00000010 293 #define KF_FLAG_NONBLOCK 0x00000020 294 #define KF_FLAG_DIRECT 0x00000040 295 #define KF_FLAG_HASLOCK 0x00000080 296 #define KF_FLAG_SHLOCK 0x00000100 297 #define KF_FLAG_EXLOCK 0x00000200 298 #define KF_FLAG_NOFOLLOW 0x00000400 299 #define KF_FLAG_CREAT 0x00000800 300 #define KF_FLAG_TRUNC 0x00001000 301 #define KF_FLAG_EXCL 0x00002000 302 #define KF_FLAG_EXEC 0x00004000 303 304 /* 305 * Old format. Has variable hidden padding due to alignment. 306 * This is a compatibility hack for pre-build 7.1 packages. 307 */ 308 #if defined(__amd64__) 309 #define KINFO_OFILE_SIZE 1328 310 #endif 311 #if defined(__i386__) 312 #define KINFO_OFILE_SIZE 1324 313 #endif 314 315 struct kinfo_ofile { 316 int kf_structsize; /* Size of kinfo_file. */ 317 int kf_type; /* Descriptor type. */ 318 int kf_fd; /* Array index. */ 319 int kf_ref_count; /* Reference count. */ 320 int kf_flags; /* Flags. */ 321 /* XXX Hidden alignment padding here on amd64 */ 322 off_t kf_offset; /* Seek location. */ 323 int kf_vnode_type; /* Vnode type. */ 324 int kf_sock_domain; /* Socket domain. */ 325 int kf_sock_type; /* Socket type. */ 326 int kf_sock_protocol; /* Socket protocol. */ 327 char kf_path[PATH_MAX]; /* Path to file, if any. */ 328 struct sockaddr_storage kf_sa_local; /* Socket address. */ 329 struct sockaddr_storage kf_sa_peer; /* Peer address. */ 330 }; 331 332 #if defined(__amd64__) || defined(__i386__) 333 /* 334 * This size should never be changed. If you really need to, you must provide 335 * backward ABI compatibility by allocating a new sysctl MIB that will return 336 * the new structure. The current structure has to be returned by the current 337 * sysctl MIB. See how it is done for the kinfo_ofile structure. 338 */ 339 #define KINFO_FILE_SIZE 1392 340 #endif 341 342 struct kinfo_file { 343 int kf_structsize; /* Variable size of record. */ 344 int kf_type; /* Descriptor type. */ 345 int kf_fd; /* Array index. */ 346 int kf_ref_count; /* Reference count. */ 347 int kf_flags; /* Flags. */ 348 int kf_pad0; /* Round to 64 bit alignment. */ 349 int64_t kf_offset; /* Seek location. */ 350 union { 351 struct { 352 /* API compatibility with FreeBSD < 12. */ 353 int kf_vnode_type; 354 int kf_sock_domain; 355 int kf_sock_type; 356 int kf_sock_protocol; 357 struct sockaddr_storage kf_sa_local; 358 struct sockaddr_storage kf_sa_peer; 359 }; 360 union { 361 struct { 362 /* Sendq size */ 363 uint32_t kf_sock_sendq; 364 /* Socket domain. */ 365 int kf_sock_domain0; 366 /* Socket type. */ 367 int kf_sock_type0; 368 /* Socket protocol. */ 369 int kf_sock_protocol0; 370 /* Socket address. */ 371 struct sockaddr_storage kf_sa_local; 372 /* Peer address. */ 373 struct sockaddr_storage kf_sa_peer; 374 /* Address of so_pcb. */ 375 uint64_t kf_sock_pcb; 376 /* Address of inp_ppcb. */ 377 uint64_t kf_sock_inpcb; 378 /* Address of unp_conn. */ 379 uint64_t kf_sock_unpconn; 380 /* Send buffer state. */ 381 uint16_t kf_sock_snd_sb_state; 382 /* Receive buffer state. */ 383 uint16_t kf_sock_rcv_sb_state; 384 /* Recvq size. */ 385 uint32_t kf_sock_recvq; 386 } kf_sock; 387 struct { 388 /* Vnode type. */ 389 int kf_file_type; 390 /* Space for future use */ 391 int kf_spareint[3]; 392 uint64_t kf_spareint64[29]; 393 /* Number of references to file. */ 394 uint64_t kf_file_nlink; 395 /* Vnode filesystem id. */ 396 uint64_t kf_file_fsid; 397 /* File device. */ 398 uint64_t kf_file_rdev; 399 /* Global file id. */ 400 uint64_t kf_file_fileid; 401 /* File size. */ 402 uint64_t kf_file_size; 403 /* Vnode filesystem id, FreeBSD 11 compat. */ 404 uint32_t kf_file_fsid_freebsd11; 405 /* File device, FreeBSD 11 compat. */ 406 uint32_t kf_file_rdev_freebsd11; 407 /* File mode. */ 408 uint16_t kf_file_mode; 409 /* Round to 64 bit alignment. */ 410 uint16_t kf_file_pad0; 411 uint32_t kf_file_pad1; 412 } kf_file; 413 struct { 414 uint32_t kf_spareint[4]; 415 uint64_t kf_spareint64[32]; 416 uint32_t kf_sem_value; 417 uint16_t kf_sem_mode; 418 } kf_sem; 419 struct { 420 uint32_t kf_spareint[4]; 421 uint64_t kf_spareint64[32]; 422 uint64_t kf_pipe_addr; 423 uint64_t kf_pipe_peer; 424 uint32_t kf_pipe_buffer_cnt; 425 uint32_t kf_pipe_buffer_in; 426 uint32_t kf_pipe_buffer_out; 427 uint32_t kf_pipe_buffer_size; 428 } kf_pipe; 429 struct { 430 uint32_t kf_spareint[4]; 431 uint64_t kf_spareint64[32]; 432 uint32_t kf_pts_dev_freebsd11; 433 uint32_t kf_pts_pad0; 434 uint64_t kf_pts_dev; 435 /* Round to 64 bit alignment. */ 436 uint32_t kf_pts_pad1[4]; 437 } kf_pts; 438 struct { 439 uint32_t kf_spareint[4]; 440 uint64_t kf_spareint64[32]; 441 pid_t kf_pid; 442 } kf_proc; 443 struct { 444 uint64_t kf_eventfd_value; 445 uint32_t kf_eventfd_flags; 446 uint32_t kf_eventfd_spareint[3]; 447 uint64_t kf_eventfd_addr; 448 } kf_eventfd; 449 struct { 450 uint64_t kf_kqueue_addr; 451 int32_t kf_kqueue_count; 452 int32_t kf_kqueue_state; 453 } kf_kqueue; 454 } kf_un; 455 }; 456 uint16_t kf_status; /* Status flags. */ 457 uint16_t kf_pad1; /* Round to 32 bit alignment. */ 458 int _kf_ispare0; /* Space for more stuff. */ 459 cap_rights_t kf_cap_rights; /* Capability rights. */ 460 uint64_t _kf_cap_spare; /* Space for future cap_rights_t. */ 461 /* Truncated before copyout in sysctl */ 462 char kf_path[PATH_MAX]; /* Path to file, if any. */ 463 }; 464 465 struct kinfo_lockf { 466 int kl_structsize; /* Variable size of record. */ 467 int kl_rw; 468 int kl_type; 469 int kl_pid; 470 int kl_sysid; 471 int kl_pad0; 472 uint64_t kl_file_fsid; 473 uint64_t kl_file_rdev; 474 uint64_t kl_file_fileid; 475 off_t kl_start; 476 off_t kl_len; /* len == 0 till the EOF */ 477 char kl_path[PATH_MAX]; 478 }; 479 480 #define KLOCKF_RW_READ 0x01 481 #define KLOCKF_RW_WRITE 0x02 482 483 #define KLOCKF_TYPE_FLOCK 0x01 484 #define KLOCKF_TYPE_PID 0x02 485 #define KLOCKF_TYPE_REMOTE 0x03 486 487 /* 488 * The KERN_PROC_VMMAP sysctl allows a process to dump the VM layout of 489 * another process as a series of entries. 490 */ 491 #define KVME_TYPE_NONE 0 492 #define KVME_TYPE_DEFAULT 1 /* no longer returned */ 493 #define KVME_TYPE_VNODE 2 494 #define KVME_TYPE_SWAP 3 495 #define KVME_TYPE_DEVICE 4 496 #define KVME_TYPE_PHYS 5 497 #define KVME_TYPE_DEAD 6 498 #define KVME_TYPE_SG 7 499 #define KVME_TYPE_MGTDEVICE 8 500 #define KVME_TYPE_GUARD 9 501 #define KVME_TYPE_UNKNOWN 255 502 503 #define KVME_PROT_READ 0x00000001 504 #define KVME_PROT_WRITE 0x00000002 505 #define KVME_PROT_EXEC 0x00000004 506 507 #define KVME_FLAG_COW 0x00000001 508 #define KVME_FLAG_NEEDS_COPY 0x00000002 509 #define KVME_FLAG_NOCOREDUMP 0x00000004 510 #define KVME_FLAG_SUPER 0x00000008 511 #define KVME_FLAG_GROWS_UP 0x00000010 512 #define KVME_FLAG_GROWS_DOWN 0x00000020 513 #define KVME_FLAG_USER_WIRED 0x00000040 514 515 #if defined(__amd64__) 516 #define KINFO_OVMENTRY_SIZE 1168 517 #endif 518 #if defined(__i386__) 519 #define KINFO_OVMENTRY_SIZE 1128 520 #endif 521 522 struct kinfo_ovmentry { 523 int kve_structsize; /* Size of kinfo_vmmapentry. */ 524 int kve_type; /* Type of map entry. */ 525 void *kve_start; /* Starting address. */ 526 void *kve_end; /* Finishing address. */ 527 int kve_flags; /* Flags on map entry. */ 528 int kve_resident; /* Number of resident pages. */ 529 int kve_private_resident; /* Number of private pages. */ 530 int kve_protection; /* Protection bitmask. */ 531 int kve_ref_count; /* VM obj ref count. */ 532 int kve_shadow_count; /* VM obj shadow count. */ 533 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */ 534 void *_kve_pspare[8]; /* Space for more stuff. */ 535 off_t kve_offset; /* Mapping offset in object */ 536 uint64_t kve_fileid; /* inode number if vnode */ 537 uint32_t kve_fsid; /* dev_t of vnode location */ 538 int _kve_ispare[3]; /* Space for more stuff. */ 539 }; 540 541 #if defined(__amd64__) || defined(__i386__) 542 #define KINFO_VMENTRY_SIZE 1160 543 #endif 544 545 struct kinfo_vmentry { 546 int kve_structsize; /* Variable size of record. */ 547 int kve_type; /* Type of map entry. */ 548 uint64_t kve_start; /* Starting address. */ 549 uint64_t kve_end; /* Finishing address. */ 550 uint64_t kve_offset; /* Mapping offset in object */ 551 uint64_t kve_vn_fileid; /* inode number if vnode */ 552 uint32_t kve_vn_fsid_freebsd11; /* dev_t of vnode location */ 553 int kve_flags; /* Flags on map entry. */ 554 int kve_resident; /* Number of resident pages. */ 555 int kve_private_resident; /* Number of private pages. */ 556 int kve_protection; /* Protection bitmask. */ 557 int kve_ref_count; /* VM obj ref count. */ 558 int kve_shadow_count; /* VM obj shadow count. */ 559 int kve_vn_type; /* Vnode type. */ 560 uint64_t kve_vn_size; /* File size. */ 561 uint32_t kve_vn_rdev_freebsd11; /* Device id if device. */ 562 uint16_t kve_vn_mode; /* File mode. */ 563 uint16_t kve_status; /* Status flags. */ 564 union { 565 uint64_t _kve_vn_fsid; /* dev_t of vnode location */ 566 uint64_t _kve_obj; /* handle of anon obj */ 567 } kve_type_spec; 568 uint64_t kve_vn_rdev; /* Device id if device. */ 569 int _kve_ispare[8]; /* Space for more stuff. */ 570 /* Truncated before copyout in sysctl */ 571 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */ 572 }; 573 #define kve_vn_fsid kve_type_spec._kve_vn_fsid 574 #define kve_obj kve_type_spec._kve_obj 575 576 /* 577 * The "vm.objects" sysctl provides a list of all VM objects in the system 578 * via an array of these entries. 579 */ 580 struct kinfo_vmobject { 581 int kvo_structsize; /* Variable size of record. */ 582 int kvo_type; /* Object type: KVME_TYPE_*. */ 583 uint64_t kvo_size; /* Object size in pages. */ 584 uint64_t kvo_vn_fileid; /* inode number if vnode. */ 585 uint32_t kvo_vn_fsid_freebsd11; /* dev_t of vnode location. */ 586 int kvo_ref_count; /* Reference count. */ 587 int kvo_shadow_count; /* Shadow count. */ 588 int kvo_memattr; /* Memory attribute. */ 589 uint64_t kvo_resident; /* Number of resident pages. */ 590 uint64_t kvo_active; /* Number of active pages. */ 591 uint64_t kvo_inactive; /* Number of inactive pages. */ 592 union { 593 uint64_t _kvo_vn_fsid; 594 uint64_t _kvo_backing_obj; /* Handle for the backing obj */ 595 } kvo_type_spec; /* Type-specific union */ 596 uint64_t kvo_me; /* Uniq handle for anon obj */ 597 uint64_t _kvo_qspare[6]; 598 uint32_t kvo_swapped; /* Number of swapped pages */ 599 uint32_t _kvo_ispare[7]; 600 char kvo_path[PATH_MAX]; /* Pathname, if any. */ 601 }; 602 #define kvo_vn_fsid kvo_type_spec._kvo_vn_fsid 603 #define kvo_backing_obj kvo_type_spec._kvo_backing_obj 604 605 /* 606 * The KERN_PROC_KSTACK sysctl allows a process to dump the kernel stacks of 607 * another process as a series of entries. Each stack is represented by a 608 * series of symbol names and offsets as generated by stack_sbuf_print(9). 609 */ 610 #define KKST_MAXLEN 1024 611 612 #define KKST_STATE_STACKOK 0 /* Stack is valid. */ 613 #define KKST_STATE_SWAPPED 1 /* Stack swapped out. */ 614 #define KKST_STATE_RUNNING 2 /* Stack ephemeral. */ 615 616 #if defined(__amd64__) || defined(__i386__) 617 #define KINFO_KSTACK_SIZE 1096 618 #endif 619 620 struct kinfo_kstack { 621 lwpid_t kkst_tid; /* ID of thread. */ 622 int kkst_state; /* Validity of stack. */ 623 char kkst_trace[KKST_MAXLEN]; /* String representing stack. */ 624 int _kkst_ispare[16]; /* Space for more stuff. */ 625 }; 626 627 struct kinfo_sigtramp { 628 void *ksigtramp_start; 629 void *ksigtramp_end; 630 void *ksigtramp_spare[4]; 631 }; 632 633 #define KMAP_FLAG_WIREFUTURE 0x01 /* all future mappings wil be wired */ 634 #define KMAP_FLAG_ASLR 0x02 /* ASLR is applied to mappings */ 635 #define KMAP_FLAG_ASLR_IGNSTART 0x04 /* ASLR may map into sbrk grow region */ 636 #define KMAP_FLAG_WXORX 0x08 /* W^X mapping policy is enforced */ 637 #define KMAP_FLAG_ASLR_STACK 0x10 /* the stack location is randomized */ 638 #define KMAP_FLAG_ASLR_SHARED_PAGE 0x20 /* the shared page location is randomized */ 639 640 struct kinfo_vm_layout { 641 uintptr_t kvm_min_user_addr; 642 uintptr_t kvm_max_user_addr; 643 uintptr_t kvm_text_addr; 644 size_t kvm_text_size; 645 uintptr_t kvm_data_addr; 646 size_t kvm_data_size; 647 uintptr_t kvm_stack_addr; 648 size_t kvm_stack_size; 649 int kvm_map_flags; 650 uintptr_t kvm_shp_addr; 651 size_t kvm_shp_size; 652 uintptr_t kvm_spare[12]; 653 }; 654 655 #ifdef _KERNEL 656 /* Flags for kern_proc_out function. */ 657 #define KERN_PROC_NOTHREADS 0x1 658 #define KERN_PROC_MASK32 0x2 659 660 /* Flags for kern_proc_filedesc_out. */ 661 #define KERN_FILEDESC_PACK_KINFO 0x00000001U 662 663 /* Flags for kern_proc_vmmap_out. */ 664 #define KERN_VMMAP_PACK_KINFO 0x00000001U 665 struct sbuf; 666 667 /* 668 * The kern_proc out functions are helper functions to dump process 669 * miscellaneous kinfo structures to sbuf. The main consumers are KERN_PROC 670 * sysctls but they may also be used by other kernel subsystems. 671 * 672 * The functions manipulate the process locking state and expect the process 673 * to be locked on enter. On return the process is unlocked. 674 */ 675 676 int kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen, 677 int flags); 678 int kern_proc_cwd_out(struct proc *p, struct sbuf *sb, ssize_t maxlen); 679 int kern_proc_out(struct proc *p, struct sbuf *sb, int flags); 680 int kern_proc_vmmap_out(struct proc *p, struct sbuf *sb, ssize_t maxlen, 681 int flags); 682 683 int vntype_to_kinfo(int vtype); 684 void pack_kinfo(struct kinfo_file *kif); 685 #endif /* !_KERNEL */ 686 687 #endif
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