user.h revision 310121
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: stable/10/sys/sys/user.h 310121 2016-12-15 16:52:17Z vangyzen $
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
119struct 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	char	ki_moretdname[MAXCOMLEN-TDNAMLEN+1];	/* more thread name */
184	/*
185	 * When adding new variables, take space for char-strings from the
186	 * front of ki_sparestrings, and ints from the end of ki_spareints.
187	 * That way the spare room from both arrays will remain contiguous.
188	 */
189	char	ki_sparestrings[46];	/* spare string space */
190	int	ki_spareints[KI_NSPARE_INT];	/* spare room for growth */
191	int	ki_flag2;		/* P2_* flags */
192	int	ki_fibnum;		/* Default FIB number */
193	u_int	ki_cr_flags;		/* Credential flags */
194	int	ki_jid;			/* Process jail ID */
195	int	ki_numthreads;		/* XXXKSE number of threads in total */
196	lwpid_t	ki_tid;			/* XXXKSE thread id */
197	struct	priority ki_pri;	/* process priority */
198	struct	rusage ki_rusage;	/* process rusage statistics */
199	/* XXX - most fields in ki_rusage_ch are not (yet) filled in */
200	struct	rusage ki_rusage_ch;	/* rusage of children processes */
201	struct	pcb *ki_pcb;		/* kernel virtual addr of pcb */
202	void	*ki_kstack;		/* kernel virtual addr of stack */
203	void	*ki_udata;		/* User convenience pointer */
204	struct	thread *ki_tdaddr;	/* address of thread */
205	/*
206	 * When adding new variables, take space for pointers from the
207	 * front of ki_spareptrs, and longs from the end of ki_sparelongs.
208	 * That way the spare room from both arrays will remain contiguous.
209	 */
210	void	*ki_spareptrs[KI_NSPARE_PTR];	/* spare room for growth */
211	long	ki_sparelongs[KI_NSPARE_LONG];	/* spare room for growth */
212	long	ki_sflag;		/* PS_* flags */
213	long	ki_tdflags;		/* XXXKSE kthread flag */
214};
215void fill_kinfo_proc(struct proc *, struct kinfo_proc *);
216/* XXX - the following two defines are temporary */
217#define	ki_childstime	ki_rusage_ch.ru_stime
218#define	ki_childutime	ki_rusage_ch.ru_utime
219
220/*
221 *  Legacy PS_ flag.  This moved to p_flag but is maintained for
222 *  compatibility.
223 */
224#define	PS_INMEM	0x00001		/* Loaded into memory. */
225
226/* ki_sessflag values */
227#define	KI_CTTY		0x00000001	/* controlling tty vnode active */
228#define	KI_SLEADER	0x00000002	/* session leader */
229#define	KI_LOCKBLOCK	0x00000004	/* proc blocked on lock ki_lockname */
230
231/*
232 * This used to be the per-process structure containing data that
233 * isn't needed in core when the process is swapped out, but now it
234 * remains only for the benefit of a.out core dumps.
235 */
236struct user {
237	struct	pstats u_stats;		/* *p_stats */
238	struct	kinfo_proc u_kproc;	/* eproc */
239};
240
241/*
242 * The KERN_PROC_FILE sysctl allows a process to dump the file descriptor
243 * array of another process.
244 */
245#define	KF_ATTR_VALID	0x0001
246
247#define	KF_TYPE_NONE	0
248#define	KF_TYPE_VNODE	1
249#define	KF_TYPE_SOCKET	2
250#define	KF_TYPE_PIPE	3
251#define	KF_TYPE_FIFO	4
252#define	KF_TYPE_KQUEUE	5
253#define	KF_TYPE_CRYPTO	6
254#define	KF_TYPE_MQUEUE	7
255#define	KF_TYPE_SHM	8
256#define	KF_TYPE_SEM	9
257#define	KF_TYPE_PTS	10
258#define	KF_TYPE_PROCDESC	11
259#define	KF_TYPE_UNKNOWN	255
260
261#define	KF_VTYPE_VNON	0
262#define	KF_VTYPE_VREG	1
263#define	KF_VTYPE_VDIR	2
264#define	KF_VTYPE_VBLK	3
265#define	KF_VTYPE_VCHR	4
266#define	KF_VTYPE_VLNK	5
267#define	KF_VTYPE_VSOCK	6
268#define	KF_VTYPE_VFIFO	7
269#define	KF_VTYPE_VBAD	8
270#define	KF_VTYPE_UNKNOWN	255
271
272#define	KF_FD_TYPE_CWD	-1	/* Current working directory */
273#define	KF_FD_TYPE_ROOT	-2	/* Root directory */
274#define	KF_FD_TYPE_JAIL	-3	/* Jail directory */
275#define	KF_FD_TYPE_TRACE	-4	/* ptrace vnode */
276#define	KF_FD_TYPE_TEXT	-5	/* Text vnode */
277#define	KF_FD_TYPE_CTTY	-6	/* Controlling terminal */
278
279#define	KF_FLAG_READ		0x00000001
280#define	KF_FLAG_WRITE		0x00000002
281#define	KF_FLAG_APPEND		0x00000004
282#define	KF_FLAG_ASYNC		0x00000008
283#define	KF_FLAG_FSYNC		0x00000010
284#define	KF_FLAG_NONBLOCK	0x00000020
285#define	KF_FLAG_DIRECT		0x00000040
286#define	KF_FLAG_HASLOCK		0x00000080
287#define	KF_FLAG_SHLOCK		0x00000100
288#define	KF_FLAG_EXLOCK		0x00000200
289#define	KF_FLAG_NOFOLLOW	0x00000400
290#define	KF_FLAG_CREAT		0x00000800
291#define	KF_FLAG_TRUNC		0x00001000
292#define	KF_FLAG_EXCL		0x00002000
293#define	KF_FLAG_EXEC		0x00004000
294
295/*
296 * Old format.  Has variable hidden padding due to alignment.
297 * This is a compatibility hack for pre-build 7.1 packages.
298 */
299#if defined(__amd64__)
300#define	KINFO_OFILE_SIZE	1328
301#endif
302#if defined(__i386__)
303#define	KINFO_OFILE_SIZE	1324
304#endif
305
306struct kinfo_ofile {
307	int	kf_structsize;			/* Size of kinfo_file. */
308	int	kf_type;			/* Descriptor type. */
309	int	kf_fd;				/* Array index. */
310	int	kf_ref_count;			/* Reference count. */
311	int	kf_flags;			/* Flags. */
312	/* XXX Hidden alignment padding here on amd64 */
313	off_t	kf_offset;			/* Seek location. */
314	int	kf_vnode_type;			/* Vnode type. */
315	int	kf_sock_domain;			/* Socket domain. */
316	int	kf_sock_type;			/* Socket type. */
317	int	kf_sock_protocol;		/* Socket protocol. */
318	char	kf_path[PATH_MAX];	/* Path to file, if any. */
319	struct sockaddr_storage kf_sa_local;	/* Socket address. */
320	struct sockaddr_storage	kf_sa_peer;	/* Peer address. */
321};
322
323#if defined(__amd64__) || defined(__i386__)
324/*
325 * This size should never be changed. If you really need to, you must provide
326 * backward ABI compatibility by allocating a new sysctl MIB that will return
327 * the new structure. The current structure has to be returned by the current
328 * sysctl MIB. See how it is done for the kinfo_ofile structure.
329 */
330#define	KINFO_FILE_SIZE	1392
331#endif
332
333struct kinfo_file {
334	int		kf_structsize;		/* Variable size of record. */
335	int		kf_type;		/* Descriptor type. */
336	int		kf_fd;			/* Array index. */
337	int		kf_ref_count;		/* Reference count. */
338	int		kf_flags;		/* Flags. */
339	int		kf_pad0;		/* Round to 64 bit alignment. */
340	int64_t		kf_offset;		/* Seek location. */
341	int		kf_vnode_type;		/* Vnode type. */
342	int		kf_sock_domain;		/* Socket domain. */
343	int		kf_sock_type;		/* Socket type. */
344	int		kf_sock_protocol;	/* Socket protocol. */
345	struct sockaddr_storage kf_sa_local;	/* Socket address. */
346	struct sockaddr_storage	kf_sa_peer;	/* Peer address. */
347	union {
348		struct {
349			/* Address of so_pcb. */
350			uint64_t	kf_sock_pcb;
351			/* Address of inp_ppcb. */
352			uint64_t	kf_sock_inpcb;
353			/* Address of unp_conn. */
354			uint64_t	kf_sock_unpconn;
355			/* Send buffer state. */
356			uint16_t	kf_sock_snd_sb_state;
357			/* Receive buffer state. */
358			uint16_t	kf_sock_rcv_sb_state;
359			/* Round to 64 bit alignment. */
360			uint32_t	kf_sock_pad0;
361		} kf_sock;
362		struct {
363			/* Global file id. */
364			uint64_t	kf_file_fileid;
365			/* File size. */
366			uint64_t	kf_file_size;
367			/* Vnode filesystem id. */
368			uint32_t	kf_file_fsid;
369			/* File device. */
370			uint32_t	kf_file_rdev;
371			/* File mode. */
372			uint16_t	kf_file_mode;
373			/* Round to 64 bit alignment. */
374			uint16_t	kf_file_pad0;
375			uint32_t	kf_file_pad1;
376		} kf_file;
377		struct {
378			uint32_t	kf_sem_value;
379			uint16_t	kf_sem_mode;
380		} kf_sem;
381		struct {
382			uint64_t	kf_pipe_addr;
383			uint64_t	kf_pipe_peer;
384			uint32_t	kf_pipe_buffer_cnt;
385			/* Round to 64 bit alignment. */
386			uint32_t	kf_pipe_pad0[3];
387		} kf_pipe;
388		struct {
389			uint32_t	kf_pts_dev;
390			/* Round to 64 bit alignment. */
391			uint32_t	kf_pts_pad0[7];
392		} kf_pts;
393		struct {
394			pid_t		kf_pid;
395		} kf_proc;
396	} kf_un;
397	uint16_t	kf_status;		/* Status flags. */
398	uint16_t	kf_pad1;		/* Round to 32 bit alignment. */
399	int		_kf_ispare0;		/* Space for more stuff. */
400	cap_rights_t	kf_cap_rights;		/* Capability rights. */
401	uint64_t	_kf_cap_spare;		/* Space for future cap_rights_t. */
402	/* Truncated before copyout in sysctl */
403	char		kf_path[PATH_MAX];	/* Path to file, if any. */
404};
405
406/*
407 * The KERN_PROC_VMMAP sysctl allows a process to dump the VM layout of
408 * another process as a series of entries.
409 */
410#define	KVME_TYPE_NONE		0
411#define	KVME_TYPE_DEFAULT	1
412#define	KVME_TYPE_VNODE		2
413#define	KVME_TYPE_SWAP		3
414#define	KVME_TYPE_DEVICE	4
415#define	KVME_TYPE_PHYS		5
416#define	KVME_TYPE_DEAD		6
417#define	KVME_TYPE_SG		7
418#define	KVME_TYPE_MGTDEVICE	8
419#define	KVME_TYPE_UNKNOWN	255
420
421#define	KVME_PROT_READ		0x00000001
422#define	KVME_PROT_WRITE		0x00000002
423#define	KVME_PROT_EXEC		0x00000004
424
425#define	KVME_FLAG_COW		0x00000001
426#define	KVME_FLAG_NEEDS_COPY	0x00000002
427#define	KVME_FLAG_NOCOREDUMP	0x00000004
428#define	KVME_FLAG_SUPER		0x00000008
429#define	KVME_FLAG_GROWS_UP	0x00000010
430#define	KVME_FLAG_GROWS_DOWN	0x00000020
431
432#if defined(__amd64__)
433#define	KINFO_OVMENTRY_SIZE	1168
434#endif
435#if defined(__i386__)
436#define	KINFO_OVMENTRY_SIZE	1128
437#endif
438
439struct kinfo_ovmentry {
440	int	 kve_structsize;		/* Size of kinfo_vmmapentry. */
441	int	 kve_type;			/* Type of map entry. */
442	void	*kve_start;			/* Starting address. */
443	void	*kve_end;			/* Finishing address. */
444	int	 kve_flags;			/* Flags on map entry. */
445	int	 kve_resident;			/* Number of resident pages. */
446	int	 kve_private_resident;		/* Number of private pages. */
447	int	 kve_protection;		/* Protection bitmask. */
448	int	 kve_ref_count;			/* VM obj ref count. */
449	int	 kve_shadow_count;		/* VM obj shadow count. */
450	char	 kve_path[PATH_MAX];		/* Path to VM obj, if any. */
451	void	*_kve_pspare[8];		/* Space for more stuff. */
452	off_t	 kve_offset;			/* Mapping offset in object */
453	uint64_t kve_fileid;			/* inode number if vnode */
454	dev_t	 kve_fsid;			/* dev_t of vnode location */
455	int	 _kve_ispare[3];		/* Space for more stuff. */
456};
457
458#if defined(__amd64__) || defined(__i386__)
459#define	KINFO_VMENTRY_SIZE	1160
460#endif
461
462struct kinfo_vmentry {
463	int	 kve_structsize;		/* Variable size of record. */
464	int	 kve_type;			/* Type of map entry. */
465	uint64_t kve_start;			/* Starting address. */
466	uint64_t kve_end;			/* Finishing address. */
467	uint64_t kve_offset;			/* Mapping offset in object */
468	uint64_t kve_vn_fileid;			/* inode number if vnode */
469	uint32_t kve_vn_fsid;			/* dev_t of vnode location */
470	int	 kve_flags;			/* Flags on map entry. */
471	int	 kve_resident;			/* Number of resident pages. */
472	int	 kve_private_resident;		/* Number of private pages. */
473	int	 kve_protection;		/* Protection bitmask. */
474	int	 kve_ref_count;			/* VM obj ref count. */
475	int	 kve_shadow_count;		/* VM obj shadow count. */
476	int	 kve_vn_type;			/* Vnode type. */
477	uint64_t kve_vn_size;			/* File size. */
478	uint32_t kve_vn_rdev;			/* Device id if device. */
479	uint16_t kve_vn_mode;			/* File mode. */
480	uint16_t kve_status;			/* Status flags. */
481	int	 _kve_ispare[12];		/* Space for more stuff. */
482	/* Truncated before copyout in sysctl */
483	char	 kve_path[PATH_MAX];		/* Path to VM obj, if any. */
484};
485
486/*
487 * The "vm.objects" sysctl provides a list of all VM objects in the system
488 * via an array of these entries.
489 */
490struct kinfo_vmobject {
491	int	kvo_structsize;			/* Variable size of record. */
492	int	kvo_type;			/* Object type: KVME_TYPE_*. */
493	uint64_t kvo_size;			/* Object size in pages. */
494	uint64_t kvo_vn_fileid;			/* inode number if vnode. */
495	uint32_t kvo_vn_fsid;			/* dev_t of vnode location. */
496	int	kvo_ref_count;			/* Reference count. */
497	int	kvo_shadow_count;		/* Shadow count. */
498	int	kvo_memattr;			/* Memory attribute. */
499	uint64_t kvo_resident;			/* Number of resident pages. */
500	uint64_t kvo_active;			/* Number of active pages. */
501	uint64_t kvo_inactive;			/* Number of inactive pages. */
502	uint64_t _kvo_qspare[8];
503	uint32_t _kvo_ispare[8];
504	char	kvo_path[PATH_MAX];		/* Pathname, if any. */
505};
506
507/*
508 * The KERN_PROC_KSTACK sysctl allows a process to dump the kernel stacks of
509 * another process as a series of entries.  Each stack is represented by a
510 * series of symbol names and offsets as generated by stack_sbuf_print(9).
511 */
512#define	KKST_MAXLEN	1024
513
514#define	KKST_STATE_STACKOK	0		/* Stack is valid. */
515#define	KKST_STATE_SWAPPED	1		/* Stack swapped out. */
516#define	KKST_STATE_RUNNING	2		/* Stack ephemeral. */
517
518#if defined(__amd64__) || defined(__i386__)
519#define	KINFO_KSTACK_SIZE	1096
520#endif
521
522struct kinfo_kstack {
523	lwpid_t	 kkst_tid;			/* ID of thread. */
524	int	 kkst_state;			/* Validity of stack. */
525	char	 kkst_trace[KKST_MAXLEN];	/* String representing stack. */
526	int	 _kkst_ispare[16];		/* Space for more stuff. */
527};
528
529struct kinfo_sigtramp {
530	void	*ksigtramp_start;
531	void	*ksigtramp_end;
532	void	*ksigtramp_spare[4];
533};
534
535#ifdef _KERNEL
536/* Flags for kern_proc_out function. */
537#define KERN_PROC_NOTHREADS	0x1
538#define KERN_PROC_MASK32	0x2
539
540/* Flags for kern_proc_filedesc_out. */
541#define	KERN_FILEDESC_PACK_KINFO	0x00000001U
542
543/* Flags for kern_proc_vmmap_out. */
544#define	KERN_VMMAP_PACK_KINFO		0x00000001U
545struct sbuf;
546
547/*
548 * The kern_proc out functions are helper functions to dump process
549 * miscellaneous kinfo structures to sbuf.  The main consumers are KERN_PROC
550 * sysctls but they may also be used by other kernel subsystems.
551 *
552 * The functions manipulate the process locking state and expect the process
553 * to be locked on enter.  On return the process is unlocked.
554 */
555
556int	kern_proc_filedesc_out(struct proc *p, struct sbuf *sb, ssize_t maxlen,
557	int flags);
558int	kern_proc_out(struct proc *p, struct sbuf *sb, int flags);
559int	kern_proc_vmmap_out(struct proc *p, struct sbuf *sb, ssize_t maxlen,
560	int flags);
561
562int	vntype_to_kinfo(int vtype);
563#endif /* !_KERNEL */
564
565#endif
566