procfs.h - zygaena/hammerhead

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/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
/*
 * Copyright 2012 DEY Storage Systems, Inc.  All rights reserved.
 * Copyright 2018 Joyent, Inc.
 * Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
 * Copyright 2024 Oxide Computer Company
 */

#ifndef _SYS_PROCFS_H
#define	_SYS_PROCFS_H

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * This definition is temporary.  Structured proc is the preferred API,
 * and the older ioctl-based interface will be removed in a future version
 * of Solaris.  Until then, by default, including <sys/procfs.h> will
 * provide the older ioctl-based /proc definitions.  To get the structured
 * /proc definitions, either include <procfs.h> or define _STRUCTURED_PROC
 * to be 1 before including <sys/procfs.h>.
 */
#ifndef	_STRUCTURED_PROC
#define	_STRUCTURED_PROC	0
#endif

#if !defined(_KERNEL) && _STRUCTURED_PROC == 0

#include <sys/old_procfs.h>

#else	/* !defined(_KERNEL) && _STRUCTURED_PROC == 0 */

#include <sys/feature_tests.h>
#include <sys/types.h>
#include <sys/time_impl.h>
#include <sys/signal.h>
#include <sys/siginfo.h>
#include <sys/fault.h>
#include <sys/syscall.h>
#include <sys/pset.h>
#include <sys/procfs_isa.h>
#include <sys/priv.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/secflags.h>
#include <sys/thread.h>

/*
 * System call interfaces for /proc.
 */

/*
 * Control codes (long values) for messages written to ctl and lwpctl files.
 */
#define	PCNULL   0L	/* null request, advance to next message */
#define	PCSTOP   1L	/* direct process or lwp to stop and wait for stop */
#define	PCDSTOP  2L	/* direct process or lwp to stop */
#define	PCWSTOP  3L	/* wait for process or lwp to stop, no timeout */
#define	PCTWSTOP 4L	/* wait for stop, with long millisecond timeout arg */
#define	PCRUN    5L	/* make process/lwp runnable, w/ long flags argument */
#define	PCCSIG   6L	/* clear current signal from lwp */
#define	PCCFAULT 7L	/* clear current fault from lwp */
#define	PCSSIG   8L	/* set current signal from siginfo_t argument */
#define	PCKILL   9L	/* post a signal to process/lwp, long argument */
#define	PCUNKILL 10L	/* delete a pending signal from process/lwp, long arg */
#define	PCSHOLD  11L	/* set lwp signal mask from sigset_t argument */
#define	PCSTRACE 12L	/* set traced signal set from sigset_t argument */
#define	PCSFAULT 13L	/* set traced fault set from fltset_t argument */
#define	PCSENTRY 14L	/* set traced syscall entry set from sysset_t arg */
#define	PCSEXIT  15L	/* set traced syscall exit set from sysset_t arg */
#define	PCSET    16L	/* set modes from long argument */
#define	PCUNSET  17L	/* unset modes from long argument */
#define	PCSREG   18L	/* set lwp general registers from prgregset_t arg */
#define	PCSFPREG 19L	/* set lwp floating-point registers from prfpregset_t */
#define	PCSXREG  20L	/* set lwp extra registers from prxregset_t arg */
#define	PCNICE   21L	/* set nice priority from long argument */
#define	PCSVADDR 22L	/* set %pc virtual address from long argument */
#define	PCWATCH  23L	/* set/unset watched memory area from prwatch_t arg */
#define	PCAGENT  24L	/* create agent lwp with regs from prgregset_t arg */
#define	PCREAD   25L	/* read from the address space via priovec_t arg */
#define	PCWRITE  26L	/* write to the address space via priovec_t arg */
#define	PCSCRED  27L	/* set process credentials from prcred_t argument */
#define	PCSASRS  28L	/* set ancillary state registers from asrset_t arg */
#define	PCSPRIV  29L	/* set process privileges from prpriv_t argument */
#define	PCSZONE  30L	/* set zoneid from zoneid_t argument */
#define	PCSCREDX 31L	/* as PCSCRED but with supplemental groups */
/*
 * PCRUN long operand flags.
 */
#define	PRCSIG		0x01	/* clear current signal, if any */
#define	PRCFAULT	0x02	/* clear current fault, if any */
#define	PRSTEP		0x04	/* direct the lwp to single-step */
#define	PRSABORT	0x08	/* abort syscall, if in syscall */
#define	PRSTOP		0x10	/* set directed stop request */

/*
 * lwp status file.  /proc/<pid>/lwp/<lwpid>/lwpstatus
 */
#define	PRCLSZ		8	/* maximum size of scheduling class name */
#define	PRSYSARGS	8	/* maximum number of syscall arguments */
typedef struct lwpstatus {
	int	pr_flags;	/* flags (see below) */
	id_t	pr_lwpid;	/* specific lwp identifier */
	short	pr_why;		/* reason for lwp stop, if stopped */
	short	pr_what;	/* more detailed reason */
	short	pr_cursig;	/* current signal, if any */
	short	pr_pad1;
	siginfo_t pr_info;	/* info associated with signal or fault */
	sigset_t pr_lwppend;	/* set of signals pending to the lwp */
	sigset_t pr_lwphold;	/* set of signals blocked by the lwp */
	struct sigaction pr_action;	/* signal action for current signal */
	stack_t	pr_altstack;	/* alternate signal stack info */
	uintptr_t pr_oldcontext;	/* address of previous ucontext */
	short	pr_syscall;	/* system call number (if in syscall) */
	short	pr_nsysarg;	/* number of arguments to this syscall */
	int	pr_errno;	/* errno for failed syscall, 0 if successful */
	long	pr_sysarg[PRSYSARGS];	/* arguments to this syscall */
	long	pr_rval1;	/* primary syscall return value */
	long	pr_rval2;	/* second syscall return value, if any */
	char	pr_clname[PRCLSZ];	/* scheduling class name */
	timestruc_t pr_tstamp;	/* real-time time stamp of stop */
	timestruc_t pr_utime;	/* lwp user cpu time */
	timestruc_t pr_stime;	/* lwp system cpu time */
	int	pr_filler[11 - 2 * sizeof (timestruc_t) / sizeof (int)];
	int	pr_errpriv;	/* missing privilege */
	uintptr_t pr_ustack;	/* address of stack boundary data (stack_t) */
	ulong_t	pr_instr;	/* current instruction */
	prgregset_t pr_reg;	/* general registers */
	prfpregset_t pr_fpreg;	/* floating-point registers */
} lwpstatus_t;

/*
 * process status file.  /proc/<pid>/status
 */
typedef struct pstatus {
	int	pr_flags;	/* flags (see below) */
	int	pr_nlwp;	/* number of active lwps in the process */
	pid_t	pr_pid;		/* process id */
	pid_t	pr_ppid;	/* parent process id */
	pid_t	pr_pgid;	/* process group id */
	pid_t	pr_sid;		/* session id */
	id_t	pr_aslwpid;	/* historical; now always zero */
	id_t	pr_agentid;	/* lwp id of the /proc agent lwp, if any */
	sigset_t pr_sigpend;	/* set of process pending signals */
	uintptr_t pr_brkbase;	/* address of the process heap */
	size_t	pr_brksize;	/* size of the process heap, in bytes */
	uintptr_t pr_stkbase;	/* address of the process stack */
	size_t	pr_stksize;	/* size of the process stack, in bytes */
	timestruc_t pr_utime;	/* process user cpu time */
	timestruc_t pr_stime;	/* process system cpu time */
	timestruc_t pr_cutime;	/* sum of children's user times */
	timestruc_t pr_cstime;	/* sum of children's system times */
	sigset_t pr_sigtrace;	/* set of traced signals */
	fltset_t pr_flttrace;	/* set of traced faults */
	sysset_t pr_sysentry;	/* set of system calls traced on entry */
	sysset_t pr_sysexit;	/* set of system calls traced on exit */
	char	pr_dmodel;	/* data model of the process (see below) */
	char	pr_pad[3];
	taskid_t pr_taskid;	/* task id */
	projid_t pr_projid;	/* project id */
	int	pr_nzomb;	/* number of zombie lwps in the process */
	zoneid_t pr_zoneid;	/* zone id */
	int	pr_filler[15];	/* reserved for future use */
	lwpstatus_t pr_lwp;	/* status of the representative lwp */
} pstatus_t;

/*
 * pr_flags (same values appear in both pstatus_t and lwpstatus_t pr_flags).
 *
 * These flags do *not* apply to psinfo_t.pr_flag or lwpsinfo_t.pr_flag
 * (which are both deprecated).
 */
/* The following flags apply to the specific or representative lwp */
#define	PR_STOPPED 0x00000001	/* lwp is stopped */
#define	PR_ISTOP   0x00000002	/* lwp is stopped on an event of interest */
#define	PR_DSTOP   0x00000004	/* lwp has a stop directive in effect */
#define	PR_STEP	   0x00000008	/* lwp has a single-step directive in effect */
#define	PR_ASLEEP  0x00000010	/* lwp is sleeping in a system call */
#define	PR_PCINVAL 0x00000020	/* contents of pr_instr undefined */
#define	PR_ASLWP   0x00000040	/* obsolete flag; never set */
#define	PR_AGENT   0x00000080	/* this lwp is the /proc agent lwp */
#define	PR_DETACH  0x00000100	/* this is a detached lwp */
#define	PR_DAEMON  0x00000200	/* this is a daemon lwp */
#define	PR_IDLE    0x00000400	/* lwp is a cpu's idle thread */
/* The following flags apply to the process, not to an individual lwp */
#define	PR_ISSYS   0x00001000	/* this is a system process */
#define	PR_VFORKP  0x00002000	/* process is the parent of a vfork()d child */
#define	PR_ORPHAN  0x00004000	/* process's process group is orphaned */
#define	PR_NOSIGCHLD 0x00008000	/* process will not generate SIGCHLD on exit */
#define	PR_WAITPID 0x00010000	/* only waitid(P_PID, pid) can reap the child */
/* The following process flags are modes settable by PCSET/PCUNSET */
#define	PR_FORK	   0x00100000	/* inherit-on-fork is in effect */
#define	PR_RLC	   0x00200000	/* run-on-last-close is in effect */
#define	PR_KLC	   0x00400000	/* kill-on-last-close is in effect */
#define	PR_ASYNC   0x00800000	/* asynchronous-stop is in effect */
#define	PR_MSACCT  0x01000000	/* micro-state usage accounting is in effect */
#define	PR_BPTADJ  0x02000000	/* breakpoint trap pc adjustment is in effect */
#define	PR_PTRACE  0x04000000	/* ptrace-compatibility mode is in effect */
#define	PR_MSFORK  0x08000000	/* micro-state accounting inherited on fork */

/*
 * See <sys/procfs_isa.h> for possible values of pr_dmodel.
 */

/*
 * Reasons for stopping (pr_why).
 */
#define	PR_REQUESTED	1
#define	PR_SIGNALLED	2
#define	PR_SYSENTRY	3
#define	PR_SYSEXIT	4
#define	PR_JOBCONTROL	5
#define	PR_FAULTED	6
#define	PR_SUSPENDED	7
#define	PR_CHECKPOINT	8

/*
 * lwp ps(1) information file.  /proc/<pid>/lwp/<lwpid>/lwpsinfo
 */
#define	PRFNSZ		16	/* Maximum size of execed filename */
typedef struct lwpsinfo {
	int	pr_flag;	/* lwp flags (DEPRECATED; do not use) */
	id_t	pr_lwpid;	/* lwp id */
	uintptr_t pr_addr;	/* internal address of lwp */
	uintptr_t pr_wchan;	/* wait addr for sleeping lwp */
	char	pr_stype;	/* synchronization event type */
	char	pr_state;	/* numeric lwp state */
	char	pr_sname;	/* printable character for pr_state */
	char	pr_nice;	/* nice for cpu usage */
	short	pr_syscall;	/* system call number (if in syscall) */
	char	pr_oldpri;	/* pre-SVR4, low value is high priority */
	char	pr_cpu;		/* pre-SVR4, cpu usage for scheduling */
	int	pr_pri;		/* priority, high value is high priority */
			/* The following percent number is a 16-bit binary */
			/* fraction [0 .. 1] with the binary point to the */
			/* right of the high-order bit (1.0 == 0x8000) */
	ushort_t pr_pctcpu;	/* % of recent cpu time used by this lwp */
	ushort_t pr_pad;
	timestruc_t pr_start;	/* lwp start time, from the epoch */
	timestruc_t pr_time;	/* usr+sys cpu time for this lwp */
	char	pr_clname[PRCLSZ];	/* scheduling class name */
	char	pr_name[PRFNSZ];	/* name of system lwp */
	processorid_t pr_onpro;		/* processor which last ran this lwp */
	processorid_t pr_bindpro;	/* processor to which lwp is bound */
	psetid_t pr_bindpset;	/* processor set to which lwp is bound */
	int	pr_lgrp;	/* lwp home lgroup */
	int	pr_filler[4];	/* reserved for future use */
} lwpsinfo_t;

/*
 * process ps(1) information file.  /proc/<pid>/psinfo
 */
#define	PRARGSZ		80	/* number of chars of arguments */
typedef struct psinfo {
	int	pr_flag;	/* process flags (DEPRECATED; do not use) */
	int	pr_nlwp;	/* number of active lwps in the process */
	pid_t	pr_pid;		/* unique process id */
	pid_t	pr_ppid;	/* process id of parent */
	pid_t	pr_pgid;	/* pid of process group leader */
	pid_t	pr_sid;		/* session id */
	uid_t	pr_uid;		/* real user id */
	uid_t	pr_euid;	/* effective user id */
	gid_t	pr_gid;		/* real group id */
	gid_t	pr_egid;	/* effective group id */
	uintptr_t pr_addr;	/* address of process */
	size_t	pr_size;	/* size of process image in Kbytes */
	size_t	pr_rssize;	/* resident set size in Kbytes */
	size_t	pr_pad1;
	dev_t	pr_ttydev;	/* controlling tty device (or PRNODEV) */
			/* The following percent numbers are 16-bit binary */
			/* fractions [0 .. 1] with the binary point to the */
			/* right of the high-order bit (1.0 == 0x8000) */
	ushort_t pr_pctcpu;	/* % of recent cpu time used by all lwps */
	ushort_t pr_pctmem;	/* % of system memory used by process */
	timestruc_t pr_start;	/* process start time, from the epoch */
	timestruc_t pr_time;	/* usr+sys cpu time for this process */
	timestruc_t pr_ctime;	/* usr+sys cpu time for reaped children */
	char	pr_fname[PRFNSZ];	/* name of execed file */
	char	pr_psargs[PRARGSZ];	/* initial characters of arg list */
	int	pr_wstat;	/* if zombie, the wait() status */
	int	pr_argc;	/* initial argument count */
	uintptr_t pr_argv;	/* address of initial argument vector */
	uintptr_t pr_envp;	/* address of initial environment vector */
	char	pr_dmodel;	/* data model of the process */
	char	pr_pad2[3];
	taskid_t pr_taskid;	/* task id */
	projid_t pr_projid;	/* project id */
	int	pr_nzomb;	/* number of zombie lwps in the process */
	poolid_t pr_poolid;	/* pool id */
	zoneid_t pr_zoneid;	/* zone id */
	id_t	pr_contract;	/* process contract */
	int	pr_filler[1];	/* reserved for future use */
	lwpsinfo_t pr_lwp;	/* information for representative lwp */
} psinfo_t;

#define	PRNODEV	(dev_t)(-1)	/* non-existent device */

/*
 * Memory-map interface.  /proc/<pid>/map /proc/<pid>/rmap
 */
#define	PRMAPSZ	64
typedef struct prmap {
	uintptr_t pr_vaddr;	/* virtual address of mapping */
	size_t	pr_size;	/* size of mapping in bytes */
	char	pr_mapname[PRMAPSZ];	/* name in /proc/<pid>/object */
	offset_t pr_offset;	/* offset into mapped object, if any */
	int	pr_mflags;	/* protection and attribute flags (see below) */
	int	pr_pagesize;	/* pagesize (bytes) for this mapping */
	int	pr_shmid;	/* SysV shmid, -1 if not SysV shared memory */
	int	pr_filler[1];	/* filler for future expansion */
} prmap_t;

/*
 * HAT memory-map interface.  /proc/<pid>/xmap
 */
typedef struct prxmap {
	uintptr_t pr_vaddr;	/* virtual address of mapping */
	size_t	pr_size;	/* size of mapping in bytes */
	char	pr_mapname[PRMAPSZ];	/* name in /proc/<pid>/object */
	offset_t pr_offset;	/* offset into mapped object, if any */
	int	pr_mflags;	/* protection and attribute flags (see below) */
	int	pr_pagesize;	/* pagesize (bytes) for this mapping */
	int	pr_shmid;	/* SysV shmid, -1 if not SysV shared memory */
	dev_t	pr_dev;	/* st_dev from stat64() of mapped object, or PRNODEV */
	uint64_t pr_ino; /* st_ino from stat64() of mapped object, if any */
	size_t	pr_rss;		/* pages of resident memory */
	size_t	pr_anon;	/* pages of resident anonymous memory */
	size_t	pr_locked;	/* pages of locked memory */
	size_t	pr_pad;		/* currently unused */
	uint64_t pr_hatpagesize; /* pagesize of the hat mapping */
#ifdef	_ILP32
	ulong_t	pr_filler[6];	/* filler for future expansion */
#else
	ulong_t pr_filler[7];	/* filler for future expansion */
#endif
} prxmap_t;


/* Protection and attribute flags */
#define	MA_READ		0x04	/* readable by the traced process */
#define	MA_WRITE	0x02	/* writable by the traced process */
#define	MA_EXEC		0x01	/* executable by the traced process */
#define	MA_SHARED	0x08	/* changes are shared by mapped object */
#define	MA_ANON		0x40	/* anonymous memory (e.g. /dev/zero) */
#define	MA_ISM		0x80	/* intimate shared mem (shared MMU resources) */
#define	MA_NORESERVE	0x100	/* mapped with MAP_NORESERVE */
#define	MA_SHM		0x200	/* System V shared memory */
#define	MA_RESERVED1	0x400	/* reserved for future use */

/*
 * These are obsolete and unreliable.
 * They are included here only for historical compatibility.
 */
#define	MA_BREAK	0x10	/* grown by brk(2) */
#define	MA_STACK	0x20	/* grown automatically on stack faults */

/*
 * Process credentials.  PCSCRED and /proc/<pid>/cred
 */
typedef struct prcred {
	uid_t	pr_euid;	/* effective user id */
	uid_t	pr_ruid;	/* real user id */
	uid_t	pr_suid;	/* saved user id (from exec) */
	gid_t	pr_egid;	/* effective group id */
	gid_t	pr_rgid;	/* real group id */
	gid_t	pr_sgid;	/* saved group id (from exec) */
	int	pr_ngroups;	/* number of supplementary groups */
	gid_t	pr_groups[1];	/* array of supplementary groups */
} prcred_t;

/*
 * Process privileges.  PCSPRIV and /proc/<pid>/priv
 */
typedef struct prpriv {
	uint32_t	pr_nsets;		/* number of privilege set */
	uint32_t	pr_setsize;		/* size of privilege set */
	uint32_t	pr_infosize;		/* size of supplementary data */
	priv_chunk_t	pr_sets[1];		/* array of sets */
} prpriv_t;

#define	PRSECFLAGS_VERSION_1		1
#define	PRSECFLAGS_VERSION_CURRENT	PRSECFLAGS_VERSION_1
typedef struct prsecflags {
	uint32_t pr_version;
	char pr_pad[4];
	secflagset_t pr_effective;
	secflagset_t pr_inherit;
	secflagset_t pr_lower;
	secflagset_t pr_upper;
} prsecflags_t;

/*
 * Watchpoint interface.  PCWATCH and /proc/<pid>/watch
 */
typedef struct prwatch {
	uintptr_t pr_vaddr;	/* virtual address of watched area */
	size_t	pr_size;	/* size of watched area in bytes */
	int	pr_wflags;	/* watch type flags */
	int	pr_pad;
} prwatch_t;

/* pr_wflags */
#define	WA_READ		0x04	/* trap on read access */
#define	WA_WRITE	0x02	/* trap on write access */
#define	WA_EXEC		0x01	/* trap on execute access */
#define	WA_TRAPAFTER	0x08	/* trap after instruction completes */

/*
 * PCREAD/PCWRITE I/O interface.
 */
typedef struct priovec {
	void	*pio_base;	/* buffer in controlling process */
	size_t	pio_len;	/* size of read/write request */
	off_t	pio_offset;	/* virtual address in target process */
} priovec_t;

/*
 * Resource usage.  /proc/<pid>/usage /proc/<pid>/lwp/<lwpid>/lwpusage
 */
typedef struct prusage {
	id_t		pr_lwpid;	/* lwp id.  0: process or defunct */
	int		pr_count;	/* number of contributing lwps */
	timestruc_t	pr_tstamp;	/* current time stamp */
	timestruc_t	pr_create;	/* process/lwp creation time stamp */
	timestruc_t	pr_term;	/* process/lwp termination time stamp */
	timestruc_t	pr_rtime;	/* total lwp real (elapsed) time */
	timestruc_t	pr_utime;	/* user level cpu time */
	timestruc_t	pr_stime;	/* system call cpu time */
	timestruc_t	pr_ttime;	/* other system trap cpu time */
	timestruc_t	pr_tftime;	/* text page fault sleep time */
	timestruc_t	pr_dftime;	/* data page fault sleep time */
	timestruc_t	pr_kftime;	/* kernel page fault sleep time */
	timestruc_t	pr_ltime;	/* user lock wait sleep time */
	timestruc_t	pr_slptime;	/* all other sleep time */
	timestruc_t	pr_wtime;	/* wait-cpu (latency) time */
	timestruc_t	pr_stoptime;	/* stopped time */
	timestruc_t	filltime[6];	/* filler for future expansion */
	ulong_t		pr_minf;	/* minor page faults */
	ulong_t		pr_majf;	/* major page faults */
	ulong_t		pr_nswap;	/* swaps */
	ulong_t		pr_inblk;	/* input blocks */
	ulong_t		pr_oublk;	/* output blocks */
	ulong_t		pr_msnd;	/* messages sent */
	ulong_t		pr_mrcv;	/* messages received */
	ulong_t		pr_sigs;	/* signals received */
	ulong_t		pr_vctx;	/* voluntary context switches */
	ulong_t		pr_ictx;	/* involuntary context switches */
	ulong_t		pr_sysc;	/* system calls */
	ulong_t		pr_ioch;	/* chars read and written */
	ulong_t		filler[10];	/* filler for future expansion */
} prusage_t;

/*
 * Page data file.  /proc/<pid>/pagedata
 */

/* page data file header */
typedef struct prpageheader {
	timestruc_t	pr_tstamp;	/* real time stamp */
	long		pr_nmap;	/* number of address space mappings */
	long		pr_npage;	/* total number of pages */
} prpageheader_t;

/* page data mapping header */
typedef struct prasmap {
	uintptr_t pr_vaddr;	/* virtual address of mapping */
	size_t	pr_npage;	/* number of pages in mapping */
	char	pr_mapname[PRMAPSZ];	/* name in /proc/<pid>/object */
	offset_t pr_offset;	/* offset into mapped object, if any */
	int	pr_mflags;	/* protection and attribute flags */
	int	pr_pagesize;	/* pagesize (bytes) for this mapping */
	int	pr_shmid;	/* SysV shmid, -1 if not SysV shared memory */
	int	pr_filler[1];	/* filler for future expansion */
} prasmap_t;

/*
 * pr_npage bytes (plus 0-7 null bytes to round up to an 8-byte boundary)
 * follow each mapping header, each containing zero or more of these flags.
 */
#define	PG_REFERENCED	0x02		/* page referenced since last read */
#define	PG_MODIFIED	0x01		/* page modified since last read */
#define	PG_HWMAPPED	0x04		/* page is present and mapped */

/*
 * Open file information; used in core files.  Note that we'd like to use
 * the stat or stat64 structure, but both of these structures are unfortunately
 * not consistent between 32 and 64 bit modes.  To keep our lives simpler, we
 * just define our own structure with types that are not sensitive to this
 * difference.  Also, it turns out that pfiles omits a lot of info from the
 * struct stat (e.g. times, device sizes, etc.) so we don't bother adding those
 * here.
 */
typedef struct prfdinfo_core {
	int		pr_fd;
	mode_t		pr_mode;

	uid_t		pr_uid;
	gid_t		pr_gid;

	major_t		pr_major;	/* think stat.st_dev */
	minor_t		pr_minor;

	major_t		pr_rmajor;	/* think stat.st_rdev */
	minor_t		pr_rminor;

	ino64_t		pr_ino;
	off64_t		pr_offset;
	off64_t		pr_size;

	int		pr_fileflags;	/* fcntl(F_GETXFL), etc */
	int		pr_fdflags;	/* fcntl(F_GETFD), etc. */

	char		pr_path[MAXPATHLEN];
} prfdinfo_core_t;

/*
 * Open file information; used in /proc/<pid>/fdinfo/nn files.
 * This differs from prfdinfo_core_t above as it exposes more information
 * and is variable length, with the last element, pr_misc, pointing to an
 * array of miscellaneous data items.
 */

typedef struct prfdinfo {
	int		pr_fd;		/* file descriptor number */
	mode_t		pr_mode;	/* (see st_mode in stat(2)) */
	ino64_t		pr_ino;		/* inode number */
	off64_t		pr_size;	/* file size */
	off64_t		pr_offset;	/* current offset of file descriptor */
	uid_t		pr_uid;		/* owner's user id */
	gid_t		pr_gid;		/* owner's group id */
	major_t		pr_major;	/* major number of device */
	minor_t		pr_minor;	/* minor number of device */
	major_t		pr_rmajor;	/* major number (if special file) */
	minor_t		pr_rminor;	/* minor number (if special file) */
	int		pr_fileflags;	/* (see F_GETXFL in fcntl(2)) */
	int		pr_fdflags;	/* (see F_GETFD in fcntl(2)) */
	short		pr_locktype;	/* (see F_GETLK in fcntl(2)) */
	pid_t		pr_lockpid;	/* process holding file lock */
					/* (see F_GETLK) */
	int		pr_locksysid;	/* sysid of locking process */
					/* (see F_GETLK) */
	pid_t		pr_peerpid;	/* peer process (socket, door) */
	int		pr_filler[25];	/* reserved for future use */
	char		pr_peername[PRFNSZ];	/* peer process name */
#if	__STDC_VERSION__ >= 199901L
	uint8_t		pr_misc[];	/* self describing structures */
#else
	uint8_t		pr_misc[1];	/* self describing structures */
#endif
} prfdinfo_t;

/* pr_misc item size is rounded up to maintain alignment */
#define	PRFDINFO_ROUNDUP(num) P2ROUNDUP((num), 4)

typedef struct pr_misc_header {
	uint_t		pr_misc_size;
	uint_t		pr_misc_type;
} pr_misc_header_t;

/*
 * The gaps in this enumeration are present to maintain compatibility with
 * the values used in Solaris. Any future illumos-specific additions to this
 * list should use the PR_ILLUMOS_ prefix, be placed after PR_MISC_TYPES_MAX
 * and start from a number sufficiently large enough to leave space for any
 * future additions in Solaris.
 */

enum PR_MISC_TYPES {
	PR_PATHNAME,
	PR_SOCKETNAME,
	PR_PEERSOCKNAME,
	PR_SOCKOPTS_BOOL_OPTS,
	PR_SOCKOPT_LINGER,
	PR_SOCKOPT_SNDBUF,
	PR_SOCKOPT_RCVBUF,
	PR_SOCKOPT_IP_NEXTHOP,
	PR_SOCKOPT_IPV6_NEXTHOP,
	PR_SOCKOPT_TYPE,
	PR_SOCKOPT_TCP_CONGESTION = 11,
	PR_SOCKFILTERS_PRIV = 14,
	PR_MISC_TYPES_MAX
};

typedef struct prsockopts_bool_opts {
	unsigned int prsock_bool_opts;
} prsockopts_bool_opts_t;

#define	PR_SO_DEBUG		(1 << 0)
#define	PR_SO_REUSEADDR		(1 << 1)
#define	PR_SO_REUSEPORT		(1 << 2)
#define	PR_SO_KEEPALIVE		(1 << 3)
#define	PR_SO_DONTROUTE		(1 << 4)
#define	PR_SO_BROADCAST		(1 << 5)
#define	PR_SO_OOBINLINE		(1 << 7)
#define	PR_SO_DGRAM_ERRIND	(1 << 8)
#define	PR_SO_ALLZONES		(1 << 9)
#define	PR_SO_MAC_EXEMPT	(1 << 10)
#define	PR_SO_EXCLBIND		(1 << 11)
#define	PR_SO_PASSIVE_CONNECT	(1 << 12)
#define	PR_SO_ACCEPTCONN	(1 << 13)
#define	PR_UDP_NAT_T_ENDPOINT	(1 << 14)
#define	PR_SO_VRRP		(1 << 15)
#define	PR_SO_MAC_IMPLICIT	(1 << 16)

/*
 * Representation of LWP name in core files.  In /proc, we use a simple char
 * array, but in core files we need to make it easy to correlate the note back
 * to the right LWP.  For simplicity, we'll use 32/64 consistent types.
 */
typedef struct prlwpname {
	uint64_t pr_lwpid;
	char pr_lwpname[THREAD_NAME_MAX];
} prlwpname_t;

/*
 * Header for /proc/<pid>/lstatus /proc/<pid>/lpsinfo /proc/<pid>/lusage
 */
typedef struct prheader {
	long	pr_nent;	/* number of entries */
	long	pr_entsize;	/* size of each entry, in bytes */
} prheader_t;

/*
 * Macros for manipulating sets of flags.
 * sp must be a pointer to one of sigset_t, fltset_t, or sysset_t.
 * flag must be a member of the enumeration corresponding to *sp.
 */

/* turn on all flags in set */
#define	prfillset(sp) \
	{ register int _i_ = sizeof (*(sp))/sizeof (uint32_t); \
		while (_i_) ((uint32_t *)(sp))[--_i_] = (uint32_t)0xFFFFFFFF; }

/* turn off all flags in set */
#define	premptyset(sp) \
	{ register int _i_ = sizeof (*(sp))/sizeof (uint32_t); \
		while (_i_) ((uint32_t *)(sp))[--_i_] = (uint32_t)0; }

/* turn on specified flag in set */
#define	praddset(sp, flag) \
	((void)(((unsigned)((flag)-1) < 32*sizeof (*(sp))/sizeof (uint32_t)) ? \
	(((uint32_t *)(sp))[((flag)-1)/32] |= (1U<<(((flag)-1)%32))) : 0))

/* turn off specified flag in set */
#define	prdelset(sp, flag) \
	((void)(((unsigned)((flag)-1) < 32*sizeof (*(sp))/sizeof (uint32_t)) ? \
	    (((uint32_t *)(sp))[((flag)-1)/32] &= ~(1U<<(((flag)-1)%32))) : 0))

/* query: != 0 iff flag is turned on in set */
#define	prismember(sp, flag) \
	(((unsigned)((flag)-1) < 32*sizeof (*(sp))/sizeof (uint32_t)) && \
	    (((uint32_t *)(sp))[((flag)-1)/32] & (1U<<(((flag)-1)%32))))

/*
 * Core file upanic NT_UPANIC structure.
 */
#define	PRUPANIC_VERSION_1		1
#define	PRUPANIC_VERSION_CURRENT	PRUPANIC_VERSION_1
#define	PRUPANIC_FLAG_MSG_VALID	0x01
#define	PRUPANIC_FLAG_MSG_ERROR	0x02
#define	PRUPANIC_FLAG_MSG_TRUNC	0x04
#define	PRUPANIC_BUFLEN		1024
typedef struct prupanic {
	uint32_t pru_version;
	uint32_t pru_flags;
	uint8_t pru_data[PRUPANIC_BUFLEN];
} prupanic_t;

/*
 * Core file NT_CWD structure.
 */
typedef struct {
	uint64_t prcwd_fsid;
	char prcwd_fsname[_ST_FSTYPSZ];
	char prcwd_mntpt[MAXPATHLEN];
	char prcwd_mntspec[MAXPATHLEN];
	char prcwd_cwd[MAXPATHLEN];
} prcwd_t;

#if defined(_SYSCALL32)

/*
 * dev32_t version of PRNODEV
 */
#define	PRNODEV32 (dev32_t)(-1)

/*
 * Kernel view of /proc structures for _ILP32 programs.
 */

/*
 * _ILP32 lwp status file.  /proc/<pid>/lwp/<lwpid>/lwpstatus
 */
typedef struct lwpstatus32 {
	int	pr_flags;	/* flags */
	id32_t	pr_lwpid;	/* specific lwp identifier */
	short	pr_why;		/* reason for lwp stop, if stopped */
	short	pr_what;	/* more detailed reason */
	short	pr_cursig;	/* current signal, if any */
	short	pr_pad1;
	siginfo32_t pr_info;	/* info associated with signal or fault */
	sigset_t pr_lwppend;	/* set of signals pending to the lwp */
	sigset_t pr_lwphold;	/* set of signals blocked by the lwp */
	struct sigaction32 pr_action;	/* signal action for current signal */
	stack32_t pr_altstack;	/* alternate signal stack info */
	caddr32_t pr_oldcontext;	/* address of previous ucontext */
	short	pr_syscall;	/* system call number (if in syscall) */
	short	pr_nsysarg;	/* number of arguments to this syscall */
	int	pr_errno;	/* errno for failed syscall, 0 if successful */
	int32_t	pr_sysarg[PRSYSARGS];	/* arguments to this syscall */
	int32_t	pr_rval1;	/* primary syscall return value */
	int32_t	pr_rval2;	/* second syscall return value, if any */
	char	pr_clname[PRCLSZ];	/* scheduling class name */
	timestruc32_t pr_tstamp;	/* real-time time stamp of stop */
	timestruc32_t pr_utime;	/* lwp user cpu time */
	timestruc32_t pr_stime;	/* lwp system cpu time */
	int	pr_filler[11 - 2 * sizeof (timestruc32_t) / sizeof (int)];
	int	pr_errpriv;	/* missing privilege */
	caddr32_t pr_ustack;	/* address of stack boundary data (stack32_t) */
	uint32_t pr_instr;	/* current instruction */
	prgregset32_t pr_reg;	/* general registers */
	prfpregset32_t pr_fpreg; /* floating-point registers */
} lwpstatus32_t;

/*
 * _ILP32 process status file.  /proc/<pid>/status
 */
typedef struct pstatus32 {
	int	pr_flags;	/* flags */
	int	pr_nlwp;	/* number of active lwps in the process */
	pid32_t	pr_pid;		/* process id */
	pid32_t	pr_ppid;	/* parent process id */
	pid32_t	pr_pgid;	/* process group id */
	pid32_t	pr_sid;		/* session id */
	id32_t	pr_aslwpid;	/* historical; now always zero */
	id32_t	pr_agentid;	/* lwp id of the /proc agent lwp, if any */
	sigset_t pr_sigpend;	/* set of process pending signals */
	caddr32_t pr_brkbase;	/* address of the process heap */
	size32_t pr_brksize;	/* size of the process heap, in bytes */
	caddr32_t pr_stkbase;	/* address of the process stack */
	size32_t pr_stksize;	/* size of the process stack, in bytes */
	timestruc32_t pr_utime;	/* process user cpu time */
	timestruc32_t pr_stime;	/* process system cpu time */
	timestruc32_t pr_cutime;	/* sum of children's user times */
	timestruc32_t pr_cstime;	/* sum of children's system times */
	sigset_t pr_sigtrace;	/* set of traced signals */
	fltset_t pr_flttrace;	/* set of traced faults */
	sysset_t pr_sysentry;	/* set of system calls traced on entry */
	sysset_t pr_sysexit;	/* set of system calls traced on exit */
	char	pr_dmodel;	/* data model of the process */
	char	pr_pad[3];
	id32_t	pr_taskid;	/* task id */
	id32_t	pr_projid;	/* project id */
	int	pr_nzomb;	/* number of zombie lwps in the process */
	id32_t	pr_zoneid;	/* zone id */
	int	pr_filler[15];	/* reserved for future use */
	lwpstatus32_t pr_lwp;	/* status of the representative lwp */
} pstatus32_t;

/*
 * _ILP32 lwp ps(1) information file.  /proc/<pid>/lwp/<lwpid>/lwpsinfo
 */
typedef struct lwpsinfo32 {
	int	pr_flag;	/* lwp flags */
	id32_t	pr_lwpid;	/* lwp id */
	caddr32_t pr_addr;	/* internal address of lwp */
	caddr32_t pr_wchan;	/* wait addr for sleeping lwp */
	char	pr_stype;	/* synchronization event type */
	char	pr_state;	/* numeric lwp state */
	char	pr_sname;	/* printable character for pr_state */
	char	pr_nice;	/* nice for cpu usage */
	short	pr_syscall;	/* system call number (if in syscall) */
	char	pr_oldpri;	/* pre-SVR4, low value is high priority */
	char	pr_cpu;		/* pre-SVR4, cpu usage for scheduling */
	int	pr_pri;		/* priority, high value is high priority */
			/* The following percent number is a 16-bit binary */
			/* fraction [0 .. 1] with the binary point to the */
			/* right of the high-order bit (1.0 == 0x8000) */
	ushort_t pr_pctcpu;	/* % of recent cpu time used by this lwp */
	ushort_t pr_pad;
	timestruc32_t pr_start;	/* lwp start time, from the epoch */
	timestruc32_t pr_time;	/* usr+sys cpu time for this lwp */
	char	pr_clname[PRCLSZ];	/* scheduling class name */
	char	pr_name[PRFNSZ];	/* name of system lwp */
	processorid_t pr_onpro;		/* processor which last ran this lwp */
	processorid_t pr_bindpro;	/* processor to which lwp is bound */
	psetid_t pr_bindpset;	/* processor set to which lwp is bound */
	int	pr_lgrp;	/* lwp home lgroup */
	int	pr_filler[4];	/* reserved for future use */
} lwpsinfo32_t;

/*
 * _ILP32 process ps(1) information file.  /proc/<pid>/psinfo
 */
typedef struct psinfo32 {
	int	pr_flag;	/* process flags */
	int	pr_nlwp;	/* number of active lwps in the process */
	pid32_t	pr_pid;		/* unique process id */
	pid32_t	pr_ppid;	/* process id of parent */
	pid32_t	pr_pgid;	/* pid of process group leader */
	pid32_t	pr_sid;		/* session id */
	uid32_t	pr_uid;		/* real user id */
	uid32_t	pr_euid;	/* effective user id */
	gid32_t	pr_gid;		/* real group id */
	gid32_t	pr_egid;	/* effective group id */
	caddr32_t pr_addr;	/* address of process */
	size32_t pr_size;	/* size of process image in Kbytes */
	size32_t pr_rssize;	/* resident set size in Kbytes */
	size32_t pr_pad1;
	dev32_t	pr_ttydev;	/* controlling tty device (or PRNODEV) */
	ushort_t pr_pctcpu;	/* % of recent cpu time used by all lwps */
	ushort_t pr_pctmem;	/* % of system memory used by process */
	timestruc32_t pr_start;	/* process start time, from the epoch */
	timestruc32_t pr_time;	/* usr+sys cpu time for this process */
	timestruc32_t pr_ctime;	/* usr+sys cpu time for reaped children */
	char	pr_fname[PRFNSZ];	/* name of execed file */
	char	pr_psargs[PRARGSZ];	/* initial characters of arg list */
	int	pr_wstat;	/* if zombie, the wait() status */
	int	pr_argc;	/* initial argument count */
	caddr32_t pr_argv;	/* address of initial argument vector */
	caddr32_t pr_envp;	/* address of initial environment vector */
	char	pr_dmodel;	/* data model of the process */
	char	pr_pad2[3];
	id32_t	pr_taskid;	/* task id */
	id32_t	pr_projid;	/* project id */
	int	pr_nzomb;	/* number of zombie lwps in the process */
	id32_t	pr_poolid;	/* pool id */
	id32_t	pr_zoneid;	/* zone id */
	id32_t	pr_contract;	/* process contract */
	int	pr_filler[1];	/* reserved for future use */
	lwpsinfo32_t pr_lwp;	/* information for representative lwp */
} psinfo32_t;

/*
 * _ILP32 Memory-management interface.  /proc/<pid>/map /proc/<pid>/rmap
 */
typedef struct prmap32 {
	caddr32_t pr_vaddr;	/* virtual address of mapping */
	size32_t pr_size;	/* size of mapping in bytes */
	char	pr_mapname[64];	/* name in /proc/<pid>/object */
	offset_t pr_offset;	/* offset into mapped object, if any */
	int	pr_mflags;	/* protection and attribute flags */
	int	pr_pagesize;	/* pagesize (bytes) for this mapping */
	int	pr_shmid;	/* SysV shmid, -1 if not SysV shared memory */
	int	pr_filler[1];	/* filler for future expansion */
} prmap32_t;

/*
 * _ILP32 HAT memory-map interface.  /proc/<pid>/xmap
 */
typedef struct prxmap32 {
	caddr32_t pr_vaddr;	/* virtual address of mapping */
	size32_t pr_size;	/* size of mapping in bytes */
	char	pr_mapname[PRMAPSZ];	/* name in /proc/<pid>/object */
	offset_t pr_offset;	/* offset into mapped object, if any */
	int	pr_mflags;	/* protection and attribute flags (see below) */
	int	pr_pagesize;	/* pagesize (bytes) for this mapping */
	int	pr_shmid;	/* SysV shmid, -1 if not SysV shared memory */
	dev32_t	pr_dev;  /* st_dev from stat64() of mapped object, or PRNODEV */
	uint64_t pr_ino; /* st_ino from stat64() of mapped object, if any */
	uint32_t pr_rss;	/* pages of resident memory */
	uint32_t pr_anon;	/* pages of resident anonymous memory */
	uint32_t pr_locked;	/* pages of locked memory */
	uint32_t pr_pad;	/* currently unused */
	uint64_t pr_hatpagesize; /* pagesize of the hat mapping */
	uint32_t pr_filler[6];	/* filler for future expansion */
} prxmap32_t;

/*
 * _ILP32 Process credentials.  PCSCRED and /proc/<pid>/cred
 */
typedef struct prcred32 {
	uid32_t	pr_euid;	/* effective user id */
	uid32_t	pr_ruid;	/* real user id */
	uid32_t	pr_suid;	/* saved user id (from exec) */
	gid32_t	pr_egid;	/* effective group id */
	gid32_t	pr_rgid;	/* real group id */
	gid32_t	pr_sgid;	/* saved group id (from exec) */
	int	pr_ngroups;	/* number of supplementary groups */
	gid32_t	pr_groups[1];	/* array of supplementary groups */
} prcred32_t;

/*
 * _ILP32 Watchpoint interface.  PCWATCH and /proc/<pid>/watch
 */
typedef struct prwatch32 {
	caddr32_t pr_vaddr;	/* virtual address of watched area */
	size32_t pr_size;	/* size of watched area in bytes */
	int	pr_wflags;	/* watch type flags */
	int	pr_pad;
} prwatch32_t;

/*
 * _ILP32 PCREAD/PCWRITE I/O interface.
 */
typedef struct priovec32 {
	caddr32_t pio_base;	/* buffer in controlling process */
	size32_t pio_len;	/* size of read/write request */
	off32_t	pio_offset;	/* virtual address in target process */
} priovec32_t;

/*
 * _ILP32 Resource usage.  /proc/<pid>/usage /proc/<pid>/lwp/<lwpid>/lwpusage
 */
typedef struct prusage32 {
	id32_t		pr_lwpid;	/* lwp id.  0: process or defunct */
	int32_t		pr_count;	/* number of contributing lwps */
	timestruc32_t	pr_tstamp;	/* current time stamp */
	timestruc32_t	pr_create;	/* process/lwp creation time stamp */
	timestruc32_t	pr_term;	/* process/lwp termination time stamp */
	timestruc32_t	pr_rtime;	/* total lwp real (elapsed) time */
	timestruc32_t	pr_utime;	/* user level cpu time */
	timestruc32_t	pr_stime;	/* system call cpu time */
	timestruc32_t	pr_ttime;	/* other system trap cpu time */
	timestruc32_t	pr_tftime;	/* text page fault sleep time */
	timestruc32_t	pr_dftime;	/* data page fault sleep time */
	timestruc32_t	pr_kftime;	/* kernel page fault sleep time */
	timestruc32_t	pr_ltime;	/* user lock wait sleep time */
	timestruc32_t	pr_slptime;	/* all other sleep time */
	timestruc32_t	pr_wtime;	/* wait-cpu (latency) time */
	timestruc32_t	pr_stoptime;	/* stopped time */
	timestruc32_t	filltime[6];	/* filler for future expansion */
	uint32_t	pr_minf;	/* minor page faults */
	uint32_t	pr_majf;	/* major page faults */
	uint32_t	pr_nswap;	/* swaps */
	uint32_t	pr_inblk;	/* input blocks */
	uint32_t	pr_oublk;	/* output blocks */
	uint32_t	pr_msnd;	/* messages sent */
	uint32_t	pr_mrcv;	/* messages received */
	uint32_t	pr_sigs;	/* signals received */
	uint32_t	pr_vctx;	/* voluntary context switches */
	uint32_t	pr_ictx;	/* involuntary context switches */
	uint32_t	pr_sysc;	/* system calls */
	uint32_t	pr_ioch;	/* chars read and written */
	uint32_t	filler[10];	/* filler for future expansion */
} prusage32_t;

/*
 * _ILP32 Page data file.  /proc/<pid>/pagedata
 */

/* _ILP32 page data file header */
typedef struct prpageheader32 {
	timestruc32_t	pr_tstamp;	/* real time stamp */
	int32_t		pr_nmap;	/* number of address space mappings */
	int32_t		pr_npage;	/* total number of pages */
} prpageheader32_t;

/* _ILP32 page data mapping header */
typedef struct prasmap32 {
	caddr32_t pr_vaddr;	/* virtual address of mapping */
	size32_t pr_npage;	/* number of pages in mapping */
	char	pr_mapname[64];	/* name in /proc/<pid>/object */
	offset_t pr_offset;	/* offset into mapped object, if any */
	int	pr_mflags;	/* protection and attribute flags */
	int	pr_pagesize;	/* pagesize (bytes) for this mapping */
	int	pr_shmid;	/* SysV shmid, -1 if not SysV shared memory */
	int	pr_filler[1];	/* filler for future expansion */
} prasmap32_t;

/*
 * _ILP32 Header for /proc/<pid>/lstatus /proc/<pid>/lpsinfo /proc/<pid>/lusage
 */
typedef struct prheader32 {
	int32_t	pr_nent;	/* number of entries */
	int32_t	pr_entsize;	/* size of each entry, in bytes */
} prheader32_t;

#endif	/* _SYSCALL32 */

#endif	/* !_KERNEL && _STRUCTURED_PROC == 0 */

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_PROCFS_H */