Commit | Line | Data |
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da7c5cc6 | 1 | /* |
c4ec2128 | 2 | * Copyright (c) 1982, 1986, 1989 Regents of the University of California. |
af359dea | 3 | * All rights reserved. |
da7c5cc6 | 4 | * |
af359dea C |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. 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 | * from: @(#)kern_acct.c 7.18 (Berkeley) 5/11/91 | |
da7c5cc6 | 34 | */ |
06138e31 | 35 | |
94368568 JB |
36 | #include "param.h" |
37 | #include "systm.h" | |
3789a403 MK |
38 | #include "namei.h" |
39 | #include "resourcevar.h" | |
556dc220 | 40 | #include "proc.h" |
8c7d0e2a KM |
41 | #include "ioctl.h" |
42 | #include "termios.h" | |
43 | #include "tty.h" | |
c4ec2128 KM |
44 | #include "vnode.h" |
45 | #include "mount.h" | |
94368568 | 46 | #include "kernel.h" |
46e4c6f8 | 47 | #include "file.h" |
94368568 | 48 | #include "acct.h" |
c4ec2128 KM |
49 | #include "syslog.h" |
50 | ||
51 | /* | |
52 | * Values associated with enabling and disabling accounting | |
53 | */ | |
54 | int acctsuspend = 2; /* stop accounting when < 2% free space left */ | |
55 | int acctresume = 4; /* resume when free space risen to > 4% */ | |
56 | struct timeval chk = { 15, 0 };/* frequency to check space for accounting */ | |
af359dea C |
57 | struct vnode *acctp; /* file to which to do accounting */ |
58 | struct vnode *savacctp; /* file to which to do accounting when space */ | |
06138e31 SL |
59 | |
60 | /* | |
af359dea C |
61 | * Enable or disable process accounting. |
62 | * | |
63 | * If a non-null filename is given, that file is used to store accounting | |
64 | * records on process exit. If a null filename is given process accounting | |
65 | * is suspended. If accounting is enabled, the system checks the amount | |
66 | * of freespace on the filesystem at timeval intervals. If the amount of | |
67 | * freespace is below acctsuspend percent, accounting is suspended. If | |
68 | * accounting has been suspended, and freespace rises above acctresume, | |
69 | * accounting is resumed. | |
06138e31 | 70 | */ |
8c7d0e2a KM |
71 | /* ARGSUSED */ |
72 | sysacct(p, uap, retval) | |
73 | struct proc *p; | |
74 | struct args { | |
75 | char *fname; | |
76 | } *uap; | |
77 | int *retval; | |
06138e31 | 78 | { |
06138e31 | 79 | |
af359dea C |
80 | /* |
81 | * Body deleted. | |
82 | */ | |
83 | return (ENOSYS); | |
06138e31 SL |
84 | } |
85 | ||
06138e31 | 86 | /* |
c4ec2128 KM |
87 | * Periodically check the file system to see if accounting |
88 | * should be turned on or off. | |
06138e31 | 89 | */ |
c4ec2128 KM |
90 | acctwatch(resettime) |
91 | struct timeval *resettime; | |
06138e31 | 92 | { |
c4ec2128 | 93 | struct statfs sb; |
06138e31 SL |
94 | |
95 | if (savacctp) { | |
6bcdc4f3 | 96 | (void)VFS_STATFS(savacctp->v_mount, &sb, (struct proc *)0); |
c4ec2128 | 97 | if (sb.f_bavail > acctresume * sb.f_blocks / 100) { |
06138e31 SL |
98 | acctp = savacctp; |
99 | savacctp = NULL; | |
c4ec2128 KM |
100 | log(LOG_NOTICE, "Accounting resumed\n"); |
101 | return; | |
06138e31 SL |
102 | } |
103 | } | |
c4ec2128 | 104 | if (acctp == NULL) |
06138e31 | 105 | return; |
6bcdc4f3 | 106 | (void)VFS_STATFS(acctp->v_mount, &sb, (struct proc *)0); |
c4ec2128 | 107 | if (sb.f_bavail <= acctsuspend * sb.f_blocks / 100) { |
06138e31 SL |
108 | savacctp = acctp; |
109 | acctp = NULL; | |
c4ec2128 | 110 | log(LOG_NOTICE, "Accounting suspended\n"); |
06138e31 | 111 | } |
c4ec2128 KM |
112 | timeout(acctwatch, (caddr_t)resettime, hzto(resettime)); |
113 | } | |
114 | ||
115 | /* | |
af359dea C |
116 | * This routine calculates an accounting record for a process and, |
117 | * if accounting is enabled, writes it to the accounting file. | |
c4ec2128 | 118 | */ |
8c7d0e2a KM |
119 | acct(p) |
120 | register struct proc *p; | |
c4ec2128 | 121 | { |
06138e31 | 122 | |
af359dea C |
123 | /* |
124 | * Body deleted. | |
125 | */ | |
126 | return; | |
06138e31 | 127 | } |