1 /*- 2 * Copyright (c) 1982, 1986, 1989, 1991, 1993 3 * The Regents of the University of California. 4 * Copyright (c) 2007 Robert N. M. Watson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 4. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)user.h 8.2 (Berkeley) 9/23/93 32 * $FreeBSD$ 33 */ 34 35 #ifndef _SYS_USER_H_ 36 #define _SYS_USER_H_ 37 38 #include <machine/pcb.h> 39 #ifndef _KERNEL 40 /* stuff that *used* to be included by user.h, or is now needed */ 41 #include <sys/errno.h> 42 #include <sys/time.h> 43 #include <sys/resource.h> 44 #include <sys/ucred.h> 45 #include <sys/uio.h> 46 #include <sys/queue.h> 47 #include <sys/_lock.h> 48 #include <sys/_mutex.h> 49 #include <sys/proc.h> 50 #include <vm/vm.h> /* XXX */ 51 #include <vm/vm_param.h> /* XXX */ 52 #include <vm/pmap.h> /* XXX */ 53 #include <vm/vm_map.h> /* XXX */ 54 #endif /* !_KERNEL */ 55 #ifndef _SYS_RESOURCEVAR_H_ 56 #include <sys/resourcevar.h> 57 #endif 58 #ifndef _SYS_SIGNALVAR_H_ 59 #include <sys/signalvar.h> 60 #endif 61 #ifndef _SYS_SOCKET_VAR_H_ 62 #include <sys/socket.h> 63 #endif 64 #include <sys/caprights.h> 65 66 /* 67 * KERN_PROC subtype ops return arrays of selected proc structure entries: 68 * 69 * This struct includes several arrays of spare space, with different arrays 70 * for different standard C-types. When adding new variables to this struct, 71 * the space for byte-aligned data should be taken from the ki_sparestring, 72 * pointers from ki_spareptrs, word-aligned data from ki_spareints, and 73 * doubleword-aligned data from ki_sparelongs. Make sure the space for new 74 * variables come from the array which matches the size and alignment of 75 * those variables on ALL hardware platforms, and then adjust the appropriate 76 * KI_NSPARE_* value(s) to match. 77 * 78 * Always verify that sizeof(struct kinfo_proc) == KINFO_PROC_SIZE on all 79 * platforms after you have added new variables. Note that if you change 80 * the value of KINFO_PROC_SIZE, then many userland programs will stop 81 * working until they are recompiled! 82 * 83 * Once you have added the new field, you will need to add code to initialize 84 * it in two places: function fill_kinfo_proc in sys/kern/kern_proc.c and 85 * function kvm_proclist in lib/libkvm/kvm_proc.c . 86 */ 87 #define KI_NSPARE_INT 7 88 #define KI_NSPARE_LONG 12 89 #define KI_NSPARE_PTR 6 90 91 #ifndef _KERNEL 92 #ifndef KINFO_PROC_SIZE 93 #error "Unknown architecture" 94 #endif 95 #endif /* !_KERNEL */ 96 97 #define WMESGLEN 8 /* size of returned wchan message */ 98 #define LOCKNAMELEN 8 /* size of returned lock name */ 99 #define TDNAMLEN 16 /* size of returned thread name */ 100 #define COMMLEN 19 /* size of returned ki_comm name */ 101 #define KI_EMULNAMELEN 16 /* size of returned ki_emul */ 102 #define KI_NGROUPS 16 /* number of groups in ki_groups */ 103 #define LOGNAMELEN 17 /* size of returned ki_login */ 104 #define LOGINCLASSLEN 17 /* size of returned ki_loginclass */ 105 106 #ifndef BURN_BRIDGES 107 #define OCOMMLEN TDNAMLEN 108 #define ki_ocomm ki_tdname 109 #endif 110 111 /* Flags for the process credential. */ 112 #define KI_CRF_CAPABILITY_MODE 0x00000001 113 /* 114 * Steal a bit from ki_cr_flags to indicate that the cred had more than 115 * KI_NGROUPS groups. 116 */ 117 #define KI_CRF_GRP_OVERFLOW 0x80000000 118 119 struct kinfo_proc { 120 int ki_structsize; /* size of this structure */ 121 int ki_layout; /* reserved: layout identifier */ 122 struct pargs *ki_args; /* address of command arguments */ 123 struct proc *ki_paddr; /* address of proc */ 124 struct user *ki_addr; /* kernel virtual addr of u-area */ 125 struct vnode *ki_tracep; /* pointer to trace file */ 126 struct vnode *ki_textvp; /* pointer to executable file */ 127 struct filedesc *ki_fd; /* pointer to open file info */ 128 struct vmspace *ki_vmspace; /* pointer to kernel vmspace struct */ 129 void *ki_wchan; /* sleep address */ 130 pid_t ki_pid; /* Process identifier */ 131 pid_t ki_ppid; /* parent process id */ 132 pid_t ki_pgid; /* process group id */ 133 pid_t ki_tpgid; /* tty process group id */ 134 pid_t ki_sid; /* Process session ID */ 135 pid_t ki_tsid; /* Terminal session ID */ 136 short ki_jobc; /* job control counter */ 137 short ki_spare_short1; /* unused (just here for alignment) */ 138 dev_t ki_tdev; /* controlling tty dev */ 139 sigset_t ki_siglist; /* Signals arrived but not delivered */ 140 sigset_t ki_sigmask; /* Current signal mask */ 141 sigset_t ki_sigignore; /* Signals being ignored */ 142 sigset_t ki_sigcatch; /* Signals being caught by user */ 143 uid_t ki_uid; /* effective user id */ 144 uid_t ki_ruid; /* Real user id */ 145 uid_t ki_svuid; /* Saved effective user id */ 146 gid_t ki_rgid; /* Real group id */ 147 gid_t ki_svgid; /* Saved effective group id */ 148 short ki_ngroups; /* number of groups */ 149 short ki_spare_short2; /* unused (just here for alignment) */ 150 gid_t ki_groups[KI_NGROUPS]; /* groups */ 151 vm_size_t ki_size; /* virtual size */ 152 segsz_t ki_rssize; /* current resident set size in pages */ 153 segsz_t ki_swrss; /* resident set size before last swap */ 154 segsz_t ki_tsize; /* text size (pages) XXX */ 155 segsz_t ki_dsize; /* data size (pages) XXX */ 156 segsz_t ki_ssize; /* stack size (pages) */ 157 u_short ki_xstat; /* Exit status for wait & stop signal */ 158 u_short ki_acflag; /* Accounting flags */ 159 fixpt_t ki_pctcpu; /* %cpu for process during ki_swtime */ 160 u_int ki_estcpu; /* Time averaged value of ki_cpticks */ 161 u_int ki_slptime; /* Time since last blocked */ 162 u_int ki_swtime; /* Time swapped in or out */ 163 u_int ki_cow; /* number of copy-on-write faults */ 164 u_int64_t ki_runtime; /* Real time in microsec */ 165 struct timeval ki_start; /* starting time */ 166 struct timeval ki_childtime; /* time used by process children */ 167 long ki_flag; /* P_* flags */ 168 long ki_kiflag; /* KI_* flags (below) */ 169 int ki_traceflag; /* Kernel trace points */ 170 char ki_stat; /* S* process status */ 171 signed char ki_nice; /* Process "nice" value */ 172 char ki_lock; /* Process lock (prevent swap) count */ 173 char ki_rqindex; /* Run queue index */ 174 u_char ki_oncpu; /* Which cpu we are on */ 175 u_char ki_lastcpu; /* Last cpu we were on */ 176 char ki_tdname[TDNAMLEN+1]; /* thread name */ 177 char ki_wmesg[WMESGLEN+1]; /* wchan message */ 178 char ki_login[LOGNAMELEN+1]; /* setlogin name */ 179 char ki_lockname[LOCKNAMELEN+1]; /* lock name */ 180 char ki_comm[COMMLEN+1]; /* command name */ 181 char ki_emul[KI_EMULNAMELEN+1]; /* emulation name */ 182 char ki_loginclass[LOGINCLASSLEN+1]; /* login class */ 183 /* 184 * When adding new variables, take space for char-strings from the 185 * front of ki_sparestrings, and ints from the end of ki_spareints. 186 * That way the spare room from both arrays will remain contiguous. 187 */ 188 char ki_sparestrings[50]; /* spare string space */ 189 int ki_spareints[KI_NSPARE_INT]; /* spare room for growth */ 190 int ki_flag2; /* P2_* flags */ 191 int ki_fibnum; /* Default FIB number */ 192 u_int ki_cr_flags; /* Credential flags */ 193 int ki_jid; /* Process jail ID */ 194 int ki_numthreads; /* XXXKSE number of threads in total */ 195 lwpid_t ki_tid; /* XXXKSE thread id */ 196 struct priority ki_pri; /* process priority */ 197 struct rusage ki_rusage; /* process rusage statistics */ 198 /* XXX - most fields in ki_rusage_ch are not (yet) filled in */ 199 struct rusage ki_rusage_ch; /* rusage of children processes */ 200 struct pcb *ki_pcb; /* kernel virtual addr of pcb */ 201 void *ki_kstack; /* kernel virtual addr of stack */ 202 void *ki_udata; /* User convenience pointer */ 203 struct thread *ki_tdaddr; /* address of thread */ 204 /* 205 * When adding new variables, take space for pointers from the 206 * front of ki_spareptrs, and longs from the end of ki_sparelongs. 207 * That way the spare room from both arrays will remain contiguous. 208 */ 209 void *ki_spareptrs[KI_NSPARE_PTR]; /* spare room for growth */ 210 long ki_sparelongs[KI_NSPARE_LONG]; /* spare room for growth */ 211 long ki_sflag; /* PS_* flags */ 212 long ki_tdflags; /* XXXKSE kthread flag */ 213 }; 214 void fill_kinfo_proc(struct proc *, struct kinfo_proc *); 215 /* XXX - the following two defines are temporary */ 216 #define ki_childstime ki_rusage_ch.ru_stime 217 #define ki_childutime ki_rusage_ch.ru_utime 218 219 /* 220 * Legacy PS_ flag. This moved to p_flag but is maintained for 221 * compatibility. 222 */ 223 #define PS_INMEM 0x00001 /* Loaded into memory. */ 224 225 /* ki_sessflag values */ 226 #define KI_CTTY 0x00000001 /* controlling tty vnode active */ 227 #define KI_SLEADER 0x00000002 /* session leader */ 228 #define KI_LOCKBLOCK 0x00000004 /* proc blocked on lock ki_lockname */ 229 230 /* 231 * This used to be the per-process structure containing data that 232 * isn't needed in core when the process is swapped out, but now it 233 * remains only for the benefit of a.out core dumps. 234 */ 235 struct user { 236 struct pstats u_stats; /* *p_stats */ 237 struct kinfo_proc u_kproc; /* eproc */ 238 }; 239 240 /* 241 * The KERN_PROC_FILE sysctl allows a process to dump the file descriptor 242 * array of another process. 243 */ 244 #define KF_ATTR_VALID 0x0001 245 246 #define KF_TYPE_NONE 0 247 #define KF_TYPE_VNODE 1 248 #define KF_TYPE_SOCKET 2 249 #define KF_TYPE_PIPE 3 250 #define KF_TYPE_FIFO 4 251 #define KF_TYPE_KQUEUE 5 252 #define KF_TYPE_CRYPTO 6 253 #define KF_TYPE_MQUEUE 7 254 #define KF_TYPE_SHM 8 255 #define KF_TYPE_SEM 9 256 #define KF_TYPE_PTS 10 257 #define KF_TYPE_PROCDESC 11 258 #define KF_TYPE_UNKNOWN 255 259 260 #define KF_VTYPE_VNON 0 261 #define KF_VTYPE_VREG 1 262 #define KF_VTYPE_VDIR 2 263 #define KF_VTYPE_VBLK 3 264 #define KF_VTYPE_VCHR 4 265 #define KF_VTYPE_VLNK 5 266 #define KF_VTYPE_VSOCK 6 267 #define KF_VTYPE_VFIFO 7 268 #define KF_VTYPE_VBAD 8 269 #define KF_VTYPE_UNKNOWN 255 270 271 #define KF_FD_TYPE_CWD -1 /* Current working directory */ 272 #define KF_FD_TYPE_ROOT -2 /* Root directory */ 273 #define KF_FD_TYPE_JAIL -3 /* Jail directory */ 274 #define KF_FD_TYPE_TRACE -4 /* ptrace vnode */ 275 #define KF_FD_TYPE_TEXT -5 /* Text vnode */ 276 #define KF_FD_TYPE_CTTY -6 /* Controlling terminal */ 277 278 #define KF_FLAG_READ 0x00000001 279 #define KF_FLAG_WRITE 0x00000002 280 #define KF_FLAG_APPEND 0x00000004 281 #define KF_FLAG_ASYNC 0x00000008 282 #define KF_FLAG_FSYNC 0x00000010 283 #define KF_FLAG_NONBLOCK 0x00000020 284 #define KF_FLAG_DIRECT 0x00000040 285 #define KF_FLAG_HASLOCK 0x00000080 286 #define KF_FLAG_SHLOCK 0x00000100 287 #define KF_FLAG_EXLOCK 0x00000200 288 #define KF_FLAG_NOFOLLOW 0x00000400 289 #define KF_FLAG_CREAT 0x00000800 290 #define KF_FLAG_TRUNC 0x00001000 291 #define KF_FLAG_EXCL 0x00002000 292 #define KF_FLAG_EXEC 0x00004000 293 294 /* 295 * Old format. Has variable hidden padding due to alignment. 296 * This is a compatability hack for pre-build 7.1 packages. 297 */ 298 #if defined(__amd64__) 299 #define KINFO_OFILE_SIZE 1328 300 #endif 301 #if defined(__i386__) 302 #define KINFO_OFILE_SIZE 1324 303 #endif 304 305 struct kinfo_ofile { 306 int kf_structsize; /* Size of kinfo_file. */ 307 int kf_type; /* Descriptor type. */ 308 int kf_fd; /* Array index. */ 309 int kf_ref_count; /* Reference count. */ 310 int kf_flags; /* Flags. */ 311 /* XXX Hidden alignment padding here on amd64 */ 312 off_t kf_offset; /* Seek location. */ 313 int kf_vnode_type; /* Vnode type. */ 314 int kf_sock_domain; /* Socket domain. */ 315 int kf_sock_type; /* Socket type. */ 316 int kf_sock_protocol; /* Socket protocol. */ 317 char kf_path[PATH_MAX]; /* Path to file, if any. */ 318 struct sockaddr_storage kf_sa_local; /* Socket address. */ 319 struct sockaddr_storage kf_sa_peer; /* Peer address. */ 320 }; 321 322 #if defined(__amd64__) || defined(__i386__) 323 #define KINFO_FILE_SIZE 1424 324 #endif 325 326 struct kinfo_file { 327 int kf_structsize; /* Variable size of record. */ 328 int kf_type; /* Descriptor type. */ 329 int kf_fd; /* Array index. */ 330 int kf_ref_count; /* Reference count. */ 331 int kf_flags; /* Flags. */ 332 int kf_pad0; /* Round to 64 bit alignment. */ 333 int64_t kf_offset; /* Seek location. */ 334 int kf_vnode_type; /* Vnode type. */ 335 int kf_sock_domain; /* Socket domain. */ 336 int kf_sock_type; /* Socket type. */ 337 int kf_sock_protocol; /* Socket protocol. */ 338 struct sockaddr_storage kf_sa_local; /* Socket address. */ 339 struct sockaddr_storage kf_sa_peer; /* Peer address. */ 340 union { 341 struct { 342 /* Address of so_pcb. */ 343 uint64_t kf_sock_pcb; 344 /* Address of inp_ppcb. */ 345 uint64_t kf_sock_inpcb; 346 /* Address of unp_conn. */ 347 uint64_t kf_sock_unpconn; 348 /* Send buffer state. */ 349 uint16_t kf_sock_snd_sb_state; 350 /* Receive buffer state. */ 351 uint16_t kf_sock_rcv_sb_state; 352 /* Round to 64 bit alignment. */ 353 uint32_t kf_sock_pad0; 354 } kf_sock; 355 struct { 356 /* Global file id. */ 357 uint64_t kf_file_fileid; 358 /* File size. */ 359 uint64_t kf_file_size; 360 /* Vnode filesystem id. */ 361 uint32_t kf_file_fsid; 362 /* File device. */ 363 uint32_t kf_file_rdev; 364 /* File mode. */ 365 uint16_t kf_file_mode; 366 /* Round to 64 bit alignment. */ 367 uint16_t kf_file_pad0; 368 uint32_t kf_file_pad1; 369 } kf_file; 370 struct { 371 uint32_t kf_sem_value; 372 uint16_t kf_sem_mode; 373 } kf_sem; 374 struct { 375 uint64_t kf_pipe_addr; 376 uint64_t kf_pipe_peer; 377 uint32_t kf_pipe_buffer_cnt; 378 /* Round to 64 bit alignment. */ 379 uint32_t kf_pipe_pad0[3]; 380 } kf_pipe; 381 struct { 382 uint32_t kf_pts_dev; 383 /* Round to 64 bit alignment. */ 384 uint32_t kf_pts_pad0[7]; 385 } kf_pts; 386 struct { 387 pid_t kf_pid; 388 } kf_proc; 389 } kf_un; 390 uint16_t kf_status; /* Status flags. */ 391 uint16_t kf_pad1; /* Round to 32 bit alignment. */ 392 int _kf_ispare0; /* Space for more stuff. */ 393 cap_rights_t kf_cap_rights; /* Capability rights. */ 394 uint64_t _kf_cap_spare[3]; /* Space for future cap_rights_t. */ 395 int _kf_ispare[4]; /* Space for more stuff. */ 396 /* Truncated before copyout in sysctl */ 397 char kf_path[PATH_MAX]; /* Path to file, if any. */ 398 }; 399 400 /* 401 * The KERN_PROC_VMMAP sysctl allows a process to dump the VM layout of 402 * another process as a series of entries. 403 */ 404 #define KVME_TYPE_NONE 0 405 #define KVME_TYPE_DEFAULT 1 406 #define KVME_TYPE_VNODE 2 407 #define KVME_TYPE_SWAP 3 408 #define KVME_TYPE_DEVICE 4 409 #define KVME_TYPE_PHYS 5 410 #define KVME_TYPE_DEAD 6 411 #define KVME_TYPE_SG 7 412 #define KVME_TYPE_UNKNOWN 255 413 414 #define KVME_PROT_READ 0x00000001 415 #define KVME_PROT_WRITE 0x00000002 416 #define KVME_PROT_EXEC 0x00000004 417 418 #define KVME_FLAG_COW 0x00000001 419 #define KVME_FLAG_NEEDS_COPY 0x00000002 420 #define KVME_FLAG_NOCOREDUMP 0x00000004 421 #define KVME_FLAG_SUPER 0x00000008 422 #define KVME_FLAG_GROWS_UP 0x00000010 423 #define KVME_FLAG_GROWS_DOWN 0x00000020 424 425 #if defined(__amd64__) 426 #define KINFO_OVMENTRY_SIZE 1168 427 #endif 428 #if defined(__i386__) 429 #define KINFO_OVMENTRY_SIZE 1128 430 #endif 431 432 struct kinfo_ovmentry { 433 int kve_structsize; /* Size of kinfo_vmmapentry. */ 434 int kve_type; /* Type of map entry. */ 435 void *kve_start; /* Starting address. */ 436 void *kve_end; /* Finishing address. */ 437 int kve_flags; /* Flags on map entry. */ 438 int kve_resident; /* Number of resident pages. */ 439 int kve_private_resident; /* Number of private pages. */ 440 int kve_protection; /* Protection bitmask. */ 441 int kve_ref_count; /* VM obj ref count. */ 442 int kve_shadow_count; /* VM obj shadow count. */ 443 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */ 444 void *_kve_pspare[8]; /* Space for more stuff. */ 445 off_t kve_offset; /* Mapping offset in object */ 446 uint64_t kve_fileid; /* inode number if vnode */ 447 dev_t kve_fsid; /* dev_t of vnode location */ 448 int _kve_ispare[3]; /* Space for more stuff. */ 449 }; 450 451 #if defined(__amd64__) || defined(__i386__) 452 #define KINFO_VMENTRY_SIZE 1160 453 #endif 454 455 struct kinfo_vmentry { 456 int kve_structsize; /* Variable size of record. */ 457 int kve_type; /* Type of map entry. */ 458 uint64_t kve_start; /* Starting address. */ 459 uint64_t kve_end; /* Finishing address. */ 460 uint64_t kve_offset; /* Mapping offset in object */ 461 uint64_t kve_vn_fileid; /* inode number if vnode */ 462 uint32_t kve_vn_fsid; /* dev_t of vnode location */ 463 int kve_flags; /* Flags on map entry. */ 464 int kve_resident; /* Number of resident pages. */ 465 int kve_private_resident; /* Number of private pages. */ 466 int kve_protection; /* Protection bitmask. */ 467 int kve_ref_count; /* VM obj ref count. */ 468 int kve_shadow_count; /* VM obj shadow count. */ 469 int kve_vn_type; /* Vnode type. */ 470 uint64_t kve_vn_size; /* File size. */ 471 uint32_t kve_vn_rdev; /* Device id if device. */ 472 uint16_t kve_vn_mode; /* File mode. */ 473 uint16_t kve_status; /* Status flags. */ 474 int _kve_ispare[12]; /* Space for more stuff. */ 475 /* Truncated before copyout in sysctl */ 476 char kve_path[PATH_MAX]; /* Path to VM obj, if any. */ 477 }; 478 479 /* 480 * The KERN_PROC_KSTACK sysctl allows a process to dump the kernel stacks of 481 * another process as a series of entries. Each stack is represented by a 482 * series of symbol names and offsets as generated by stack_sbuf_print(9). 483 */ 484 #define KKST_MAXLEN 1024 485 486 #define KKST_STATE_STACKOK 0 /* Stack is valid. */ 487 #define KKST_STATE_SWAPPED 1 /* Stack swapped out. */ 488 #define KKST_STATE_RUNNING 2 /* Stack ephemeral. */ 489 490 #if defined(__amd64__) || defined(__i386__) 491 #define KINFO_KSTACK_SIZE 1096 492 #endif 493 494 struct kinfo_kstack { 495 lwpid_t kkst_tid; /* ID of thread. */ 496 int kkst_state; /* Validity of stack. */ 497 char kkst_trace[KKST_MAXLEN]; /* String representing stack. */ 498 int _kkst_ispare[16]; /* Space for more stuff. */ 499 }; 500 501 #ifdef _KERNEL 502 /* Flags for kern_proc_out function. */ 503 #define KERN_PROC_NOTHREADS 0x1 504 #define KERN_PROC_MASK32 0x2 505 506 struct sbuf; 507 508 /* 509 * The kern_proc out functions are helper functions to dump process 510 * miscellaneous kinfo structures to sbuf. The main consumers are KERN_PROC 511 * sysctls but they may also be used by other kernel subsystems. 512 * 513 * The functions manipulate the process locking state and expect the process 514 * to be locked on enter. On return the process is unlocked. 515 */ 516 517 int kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen); 518 int kern_proc_out(struct proc *p, struct sbuf *sb, int flags); 519 int kern_proc_vmmap_out(struct proc *p, struct sbuf *sb); 520 521 int vntype_to_kinfo(int vtype); 522 #endif /* !_KERNEL */ 523 524 #endif 525