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33 * @(#)dump.h 8.2 (Berkeley) 4/28/95
35 * $FreeBSD: src/sbin/dump/dump.h,v 1.7.6.4 2003/01/25 18:54:59 dillon Exp $
36 * $DragonFly: src/sbin/dump/dump.h,v 1.5 2004/02/04 17:39:59 joerg Exp $
39 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode))
40 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t))
43 * Dump maps used to describe what is to be dumped.
45 int mapsize; /* size of the state maps */
46 char *usedinomap; /* map of allocated inodes */
47 char *dumpdirmap; /* map of directories to be dumped */
48 char *dumpinomap; /* map of files to be dumped */
50 * Map manipulation macros.
52 #define SETINO(ino, map) \
53 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY)
54 #define CLRINO(ino, map) \
55 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY))
56 #define TSTINO(ino, map) \
57 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY)))
60 * All calculations done in 0.1" units!
62 char *disk; /* name of the disk file */
63 char *tape; /* name of the tape file */
64 char *dumpdates; /* name of the file containing dump date information*/
65 char *temp; /* name of the file for doing rewrite of dumpdates */
66 char lastlevel; /* dump level of previous dump */
67 char level; /* dump level of this dump */
68 int uflag; /* update flag */
69 int diskfd; /* disk file descriptor */
70 int tapefd; /* tape file descriptor */
71 int pipeout; /* true => output to standard output */
72 ino_t curino; /* current inumber; used globally */
73 int newtape; /* new tape flag */
74 int density; /* density in 0.1" units */
75 long tapesize; /* estimated tape size, blocks */
76 long tsize; /* tape size in 0.1" units */
77 long asize; /* number of 0.1" units written on current tape */
78 int etapes; /* estimated number of tapes */
79 int nonodump; /* if set, do not honor UF_NODUMP user flags */
80 int unlimited; /* if set, write to end of medium */
81 int cachesize; /* size of block cache */
83 int notify; /* notify operator flag */
84 int blockswritten; /* number of blocks written on current tape */
85 int tapeno; /* current tape number */
86 time_t tstart_writing; /* when started writing the first tape block */
87 time_t tend_writing; /* after writing the last tape block */
88 int passno; /* current dump pass number */
89 struct fs *sblock; /* the file system super block */
90 char sblock_buf[MAXBSIZE];
91 long dev_bsize; /* block size of underlying disk device */
92 int dev_bshift; /* log2(dev_bsize) */
93 int tp_bshift; /* log2(TP_BSIZE) */
95 /* operator interface functions */
96 void broadcast(char *message);
98 void lastdump(int arg); /* int should be char */
99 void msg(const char *fmt, ...) __printflike(1, 2);
100 void msgtail(const char *fmt, ...) __printflike(1, 2);
101 int query(char *question);
102 void quit(const char *fmt, ...) __printflike(1, 2);
104 time_t unctime(char *str);
106 /* mapping rouintes */
108 long blockest(struct dinode *dp);
109 int mapfiles(ino_t maxino, long *tapesize);
110 int mapdirs(ino_t maxino, long *tapesize);
112 /* file dumping routines */
113 void blksout(daddr_t *blkp, int frags, ino_t ino);
114 void bread(daddr_t blkno, char *buf, int size);
115 ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset);
116 void dumpino(struct dinode *dp, ino_t ino);
117 void dumpmap(char *map, int type, ino_t ino);
118 void writeheader(ino_t ino);
120 /* tape writing routines */
122 void close_rewind(void);
123 void dumpblock(daddr_t blkno, int size);
124 void startnewtape(int top);
126 void writerec(char *dp, int isspcl);
128 void Exit(int status) __dead2;
129 void dumpabort(int signo);
132 char *rawname(char *cp);
133 struct dinode *getino(ino_t inum);
138 int rmthost(char *host);
139 int rmtopen(char *tape, int mode);
140 int rmtwrite(char *buf, int count);
143 void interrupt(int signo); /* in case operator bangs on console */
148 #define X_FINOK 0 /* normal exit */
149 #define X_STARTUP 1 /* startup error */
150 #define X_REWRITE 2 /* restart writing from the check point */
151 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */
153 #define OPGRENT "operator" /* group entry to notify */
155 struct fstab *fstabsearch(char *key); /* search fs_file and fs_spec */
162 * The contents of the file _PATH_DUMPDATES is maintained both on
163 * a linked list, and then (eventually) arrayified.
166 char dd_name[NAME_MAX+3];
170 int nddates; /* number of records (might be zero) */
171 int ddates_in; /* we have read the increment file */
172 struct dumpdates **ddatev; /* the arrayfied version */
173 void initdumptimes(void);
174 void getdumptime(void);
175 void putdumptime(void);
176 #define ITITERATE(i, ddp) \
177 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])
182 * Compatibility with old systems.
185 #include <sys/file.h>
186 #define strchr(a,b) index(a,b)
187 #define strrchr(a,b) rindex(a,b)
188 extern char *strdup(), *ctime();
189 extern int read(), write();
194 #define _PATH_UTMP "/etc/utmp"
197 #define _PATH_FSTAB "/etc/fstab"
201 extern char *calloc();
202 extern char *malloc();
204 extern char *strcpy();
205 extern char *strncpy();
206 extern char *strcat();
207 extern time_t time();
208 extern void endgrent();
210 extern off_t lseek();
211 extern const char *strerror();