1/*
2 *  BSD Process Accounting for Linux - Definitions
3 *
4 *  Author: Marco van Wieringen (mvw@planets.elm.net)
5 *
6 *  This header file contains the definitions needed to implement
7 *  BSD-style process accounting. The kernel accounting code and all
8 *  user-level programs that try to do something useful with the
9 *  process accounting log must include this file.
10 *
11 *  Copyright (C) 1995 - 1997 Marco van Wieringen - ELM Consultancy B.V.
12 *
13 */
14
15#ifndef _UAPI_LINUX_ACCT_H
16#define _UAPI_LINUX_ACCT_H
17
18#include <linux/types.h>
19
20#include <asm/param.h>
21#include <asm/byteorder.h>
22
23/*
24 *  comp_t is a 16-bit "floating" point number with a 3-bit base 8
25 *  exponent and a 13-bit fraction.
26 *  comp2_t is 24-bit with 5-bit base 2 exponent and 20 bit fraction
27 *  (leading 1 not stored).
28 *  See linux/kernel/acct.c for the specific encoding systems used.
29 */
30
31typedef __u16	comp_t;
32typedef __u32	comp2_t;
33
34/*
35 *   accounting file record
36 *
37 *   This structure contains all of the information written out to the
38 *   process accounting file whenever a process exits.
39 */
40
41#define ACCT_COMM	16
42
43struct acct
44{
45	char		ac_flag;		/* Flags */
46	char		ac_version;		/* Always set to ACCT_VERSION */
47	/* for binary compatibility back until 2.0 */
48	__u16		ac_uid16;		/* LSB of Real User ID */
49	__u16		ac_gid16;		/* LSB of Real Group ID */
50	__u16		ac_tty;			/* Control Terminal */
51	__u32		ac_btime;		/* Process Creation Time */
52	comp_t		ac_utime;		/* User Time */
53	comp_t		ac_stime;		/* System Time */
54	comp_t		ac_etime;		/* Elapsed Time */
55	comp_t		ac_mem;			/* Average Memory Usage */
56	comp_t		ac_io;			/* Chars Transferred */
57	comp_t		ac_rw;			/* Blocks Read or Written */
58	comp_t		ac_minflt;		/* Minor Pagefaults */
59	comp_t		ac_majflt;		/* Major Pagefaults */
60	comp_t		ac_swaps;		/* Number of Swaps */
61/* m68k had no padding here. */
62#if !defined(CONFIG_M68K) || !defined(__KERNEL__)
63	__u16		ac_ahz;			/* AHZ */
64#endif
65	__u32		ac_exitcode;		/* Exitcode */
66	char		ac_comm[ACCT_COMM + 1];	/* Command Name */
67	__u8		ac_etime_hi;		/* Elapsed Time MSB */
68	__u16		ac_etime_lo;		/* Elapsed Time LSB */
69	__u32		ac_uid;			/* Real User ID */
70	__u32		ac_gid;			/* Real Group ID */
71};
72
73struct acct_v3
74{
75	char		ac_flag;		/* Flags */
76	char		ac_version;		/* Always set to ACCT_VERSION */
77	__u16		ac_tty;			/* Control Terminal */
78	__u32		ac_exitcode;		/* Exitcode */
79	__u32		ac_uid;			/* Real User ID */
80	__u32		ac_gid;			/* Real Group ID */
81	__u32		ac_pid;			/* Process ID */
82	__u32		ac_ppid;		/* Parent Process ID */
83	__u32		ac_btime;		/* Process Creation Time */
84#ifdef __KERNEL__
85	__u32		ac_etime;		/* Elapsed Time */
86#else
87	float		ac_etime;		/* Elapsed Time */
88#endif
89	comp_t		ac_utime;		/* User Time */
90	comp_t		ac_stime;		/* System Time */
91	comp_t		ac_mem;			/* Average Memory Usage */
92	comp_t		ac_io;			/* Chars Transferred */
93	comp_t		ac_rw;			/* Blocks Read or Written */
94	comp_t		ac_minflt;		/* Minor Pagefaults */
95	comp_t		ac_majflt;		/* Major Pagefaults */
96	comp_t		ac_swaps;		/* Number of Swaps */
97	char		ac_comm[ACCT_COMM];	/* Command Name */
98};
99
100/*
101 *  accounting flags
102 */
103				/* bit set when the process ... */
104#define AFORK		0x01	/* ... executed fork, but did not exec */
105#define ASU		0x02	/* ... used super-user privileges */
106#define ACOMPAT		0x04	/* ... used compatibility mode (VAX only not used) */
107#define ACORE		0x08	/* ... dumped core */
108#define AXSIG		0x10	/* ... was killed by a signal */
109
110#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
111#define ACCT_BYTEORDER	0x80	/* accounting file is big endian */
112#elif defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
113#define ACCT_BYTEORDER	0x00	/* accounting file is little endian */
114#else
115#error unspecified endianness
116#endif
117
118#ifndef __KERNEL__
119#define ACCT_VERSION	2
120#define AHZ		(HZ)
121#endif	/* __KERNEL */
122
123
124#endif /* _UAPI_LINUX_ACCT_H */
125