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15637ed4 RG |
1 | /*- |
2 | * Copyright (c) 1980 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
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 | * @(#)dump.h 5.16 (Berkeley) 5/29/91 | |
34 | */ | |
35 | ||
36 | #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) | |
37 | #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) | |
38 | ||
39 | /* | |
40 | * Dump maps used to describe what is to be dumped. | |
41 | */ | |
42 | int mapsize; /* size of the state maps */ | |
43 | char *usedinomap; /* map of allocated inodes */ | |
44 | char *dumpdirmap; /* map of directories to be dumped */ | |
45 | char *dumpinomap; /* map of files to be dumped */ | |
46 | /* | |
47 | * Map manipulation macros. | |
48 | */ | |
49 | #define SETINO(ino, map) \ | |
50 | map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) | |
51 | #define CLRINO(ino, map) \ | |
52 | map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) | |
53 | #define TSTINO(ino, map) \ | |
54 | (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) | |
55 | ||
56 | /* | |
57 | * All calculations done in 0.1" units! | |
58 | */ | |
59 | char *disk; /* name of the disk file */ | |
60 | char *tape; /* name of the tape file */ | |
61 | char *dumpdates; /* name of the file containing dump date information*/ | |
62 | char *temp; /* name of the file for doing rewrite of dumpdates */ | |
63 | char lastlevel; /* dump level of previous dump */ | |
64 | char level; /* dump level of this dump */ | |
65 | int uflag; /* update flag */ | |
66 | int diskfd; /* disk file descriptor */ | |
67 | int tapefd; /* tape file descriptor */ | |
68 | int pipeout; /* true => output to standard output */ | |
69 | ino_t curino; /* current inumber; used globally */ | |
70 | int newtape; /* new tape flag */ | |
71 | int density; /* density in 0.1" units */ | |
72 | long tapesize; /* estimated tape size, blocks */ | |
73 | long tsize; /* tape size in 0.1" units */ | |
74 | long asize; /* number of 0.1" units written on current tape */ | |
75 | int etapes; /* estimated number of tapes */ | |
76 | ||
77 | int notify; /* notify operator flag */ | |
78 | int blockswritten; /* number of blocks written on current tape */ | |
79 | int tapeno; /* current tape number */ | |
80 | time_t tstart_writing; /* when started writing the first tape block */ | |
81 | char *processname; | |
82 | struct fs *sblock; /* the file system super block */ | |
83 | char buf[MAXBSIZE]; | |
84 | long dev_bsize; /* block size of underlying disk device */ | |
85 | int dev_bshift; /* log2(dev_bsize) */ | |
86 | int tp_bshift; /* log2(TP_BSIZE) */ | |
87 | ||
88 | /* operator interface functions */ | |
89 | void broadcast(); | |
90 | void lastdump(); | |
91 | void msg(); | |
92 | void msgtail(); | |
93 | int query(); | |
94 | void set_operators(); | |
95 | void timeest(); | |
96 | ||
97 | /* mapping rouintes */ | |
98 | long blockest(); | |
99 | int mapfiles(); | |
100 | int mapdirs(); | |
101 | ||
102 | /* file dumping routines */ | |
103 | void dirdump(); | |
104 | void blksout(); | |
105 | void dumpmap(); | |
106 | void writeheader(); | |
107 | void bread(); | |
108 | ||
109 | /* tape writing routines */ | |
110 | int alloctape(); | |
111 | void writerec(); | |
112 | void dumpblock(); | |
113 | void flushtape(); | |
114 | void trewind(); | |
115 | void close_rewind(); | |
116 | void startnewtape(); | |
117 | ||
118 | void dumpabort(); | |
119 | void Exit(); | |
120 | void getfstab(); | |
121 | void quit(); | |
122 | ||
123 | char *rawname(); | |
124 | struct dinode *getino(); | |
125 | ||
126 | void interrupt(); /* in case operator bangs on console */ | |
127 | ||
128 | /* | |
129 | * Exit status codes | |
130 | */ | |
131 | #define X_FINOK 0 /* normal exit */ | |
132 | #define X_REWRITE 2 /* restart writing from the check point */ | |
133 | #define X_ABORT 3 /* abort all of dump; don't attempt checkpointing*/ | |
134 | ||
135 | #define OPGRENT "operator" /* group entry to notify */ | |
136 | #define DIALUP "ttyd" /* prefix for dialups */ | |
137 | ||
138 | struct fstab *fstabsearch(); /* search in fs_file and fs_spec */ | |
139 | ||
140 | /* | |
141 | * The contents of the file _PATH_DUMPDATES is maintained both on | |
142 | * a linked list, and then (eventually) arrayified. | |
143 | */ | |
144 | struct dumpdates { | |
145 | char dd_name[MAXNAMLEN+3]; | |
146 | char dd_level; | |
147 | time_t dd_ddate; | |
148 | }; | |
149 | struct dumptime { | |
150 | struct dumpdates dt_value; | |
151 | struct dumptime *dt_next; | |
152 | }; | |
153 | struct dumptime *dthead; /* head of the list version */ | |
154 | int nddates; /* number of records (might be zero) */ | |
155 | int ddates_in; /* we have read the increment file */ | |
156 | struct dumpdates **ddatev; /* the arrayfied version */ | |
157 | void initdumptimes(); | |
158 | void getdumptime(); | |
159 | void putdumptime(); | |
160 | #define ITITERATE(i, ddp) \ | |
161 | for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) | |
162 | ||
163 | /* | |
164 | * We catch these interrupts | |
165 | */ | |
166 | void sighup(); | |
167 | void sigquit(); | |
168 | void sigill(); | |
169 | void sigtrap(); | |
170 | void sigfpe(); | |
171 | void sigkill(); | |
172 | void sigbus(); | |
173 | void sigsegv(); | |
174 | void sigsys(); | |
175 | void sigalrm(); | |
176 | void sigterm(); | |
177 | ||
178 | /* | |
179 | * Compatibility with old systems. | |
180 | */ | |
181 | #ifndef __STDC__ | |
182 | #include <sys/file.h> | |
183 | #define _PATH_FSTAB "/etc/fstab" | |
184 | extern char *index(), *strdup(); | |
185 | extern char *ctime(); | |
186 | extern int errno; | |
187 | #endif |