1 | /* libmondo-stream.c
|
---|
2 | $Id: libmondo-stream.c 1955 2008-05-27 11:32:48Z bruno $
|
---|
3 |
|
---|
4 | ...tools for talking to tapes, Monitas streams, etc.
|
---|
5 |
|
---|
6 | */
|
---|
7 |
|
---|
8 |
|
---|
9 | /**
|
---|
10 | * @file
|
---|
11 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
|
---|
12 | */
|
---|
13 |
|
---|
14 | #include "my-stuff.h"
|
---|
15 | #include "mondostructures.h"
|
---|
16 | #include "libmondo-devices.h"
|
---|
17 | #include "lib-common-externs.h"
|
---|
18 | #include "libmondo-stream.h"
|
---|
19 | #include "libmondo-string-EXT.h"
|
---|
20 | #include "libmondo-files-EXT.h"
|
---|
21 | #include "libmondo-gui-EXT.h"
|
---|
22 | #include "libmondo-fork-EXT.h"
|
---|
23 | #include "libmondo-tools-EXT.h"
|
---|
24 | #include "libmondo-fifo-EXT.h"
|
---|
25 |
|
---|
26 | #define EXTRA_TAPE_CHECKSUMS
|
---|
27 | #define STR_HEADER "Mondolicious, baby"
|
---|
28 |
|
---|
29 | /*@unused@*/
|
---|
30 | //static char cvsid[] = "$Id: libmondo-stream.c 1955 2008-05-27 11:32:48Z bruno $";
|
---|
31 | extern bool g_sigpipe;
|
---|
32 | extern int g_tape_buffer_size_MB;
|
---|
33 |
|
---|
34 | extern char *g_getfacl;
|
---|
35 | extern char *g_getfattr;
|
---|
36 | extern char *MONDO_LOGFILE;
|
---|
37 |
|
---|
38 | /* Reference to global bkpinfo */
|
---|
39 | extern struct s_bkpinfo *bkpinfo;
|
---|
40 |
|
---|
41 | /**
|
---|
42 | * @addtogroup globalGroup
|
---|
43 | * @{
|
---|
44 | */
|
---|
45 | /**
|
---|
46 | * The file pointer for the opened tape/CD stream.
|
---|
47 | * Opened and closed by openin_tape(), openin_cdstream(),
|
---|
48 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
|
---|
49 | * closeout_tape(), and closeout_cdstream().
|
---|
50 | */
|
---|
51 | FILE *g_tape_stream = NULL;
|
---|
52 |
|
---|
53 |
|
---|
54 | /**
|
---|
55 | * The position (in kilobytes) where we are on the tape.
|
---|
56 | */
|
---|
57 | long long g_tape_posK = 0;
|
---|
58 |
|
---|
59 | /**
|
---|
60 | * The current media number we're using. This value is 1-based.
|
---|
61 | */
|
---|
62 | int g_current_media_number = -1;
|
---|
63 |
|
---|
64 | /**
|
---|
65 | * The tape catalog that keeps track of files written to tape.
|
---|
66 | */
|
---|
67 | struct s_tapecatalog *g_tapecatalog;
|
---|
68 |
|
---|
69 | /* @} - end of globalGroup */
|
---|
70 |
|
---|
71 | int write_backcatalog_to_tape();
|
---|
72 |
|
---|
73 |
|
---|
74 |
|
---|
75 |
|
---|
76 |
|
---|
77 | /**
|
---|
78 | * @addtogroup streamGroup
|
---|
79 | * @{
|
---|
80 | */
|
---|
81 | /**
|
---|
82 | * Close the global output file descriptor which Mondo has used to read
|
---|
83 | * from the CD stream.
|
---|
84 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
|
---|
85 | * @return 0 for success, nonzero for failure.
|
---|
86 | * @note This should be called by restore processes only.
|
---|
87 | */
|
---|
88 | int closein_cdstream()
|
---|
89 | {
|
---|
90 | return (closein_tape());
|
---|
91 | }
|
---|
92 |
|
---|
93 |
|
---|
94 | /**
|
---|
95 | * Close the global output file descriptor which Mondo has used to read
|
---|
96 | * from buffer or dd, which read from the tape.
|
---|
97 | * @param bkpinfo The backup information structure. Unused.
|
---|
98 | * @return 0 for success, nonzero for failure.
|
---|
99 | * @note This should be called by restore processes only.
|
---|
100 | * @note This function also works for cdstreams for now, but don't count on this behavior.
|
---|
101 | * @bug @p bkpinfo parameter is unused.
|
---|
102 | */
|
---|
103 | int closein_tape()
|
---|
104 | {
|
---|
105 | /*@ int's ******************************************************* */
|
---|
106 | int retval = 0;
|
---|
107 | int res = 0;
|
---|
108 | int ctrl_chr = '\0';
|
---|
109 |
|
---|
110 | /*@ buffers ***************************************************** */
|
---|
111 | char fname[MAX_STR_LEN];
|
---|
112 |
|
---|
113 | /*@ long long's ************************************************* */
|
---|
114 | long long size;
|
---|
115 | char *blk;
|
---|
116 | int i;
|
---|
117 |
|
---|
118 | blk = (char *) malloc(256 * 1024);
|
---|
119 |
|
---|
120 | log_it("closein_tape() -- entering");
|
---|
121 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
122 | retval += res;
|
---|
123 | if (ctrl_chr != BLK_END_OF_BACKUP) {
|
---|
124 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
|
---|
125 | }
|
---|
126 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
127 | retval += res;
|
---|
128 | if (ctrl_chr != BLK_END_OF_TAPE) {
|
---|
129 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
|
---|
130 | }
|
---|
131 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
|
---|
132 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
|
---|
133 | }
|
---|
134 | sleep(1);
|
---|
135 | paranoid_system("sync");
|
---|
136 | sleep(1);
|
---|
137 | paranoid_pclose(g_tape_stream);
|
---|
138 | log_it("closein_tape() -- leaving");
|
---|
139 | /*
|
---|
140 | for(i=0; i < g_tapecatalog->entries; i++)
|
---|
141 | {
|
---|
142 | log_it("i=%d type=%s num=%d aux=%ld", i, (g_tapecatalog->el[i].type==fileset)?"fileset":"bigslice", g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux);
|
---|
143 | }
|
---|
144 | */
|
---|
145 | if (!bkpinfo->please_dont_eject) {
|
---|
146 | eject_device(bkpinfo->media_device);
|
---|
147 | }
|
---|
148 | paranoid_free(blk);
|
---|
149 | paranoid_free(g_tapecatalog);
|
---|
150 | return (retval);
|
---|
151 | }
|
---|
152 |
|
---|
153 |
|
---|
154 |
|
---|
155 | /**
|
---|
156 | * Close the global output file descriptor which Mondo has been using to write
|
---|
157 | * to the tape device (via buffer or dd).
|
---|
158 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
159 | * @return 0 for success, nonzero for failure.
|
---|
160 | * @note This should be called by backup processes only.
|
---|
161 | */
|
---|
162 | int closeout_tape()
|
---|
163 | {
|
---|
164 | /*@ int's ******************************************************* */
|
---|
165 | int retval = 0;
|
---|
166 | // int res = 0;
|
---|
167 | // int ctrl_chr = '\0';
|
---|
168 |
|
---|
169 | /*@ buffers ***************************************************** */
|
---|
170 | // char fname[MAX_STR_LEN];
|
---|
171 |
|
---|
172 | /*@ long long's ************************************************* */
|
---|
173 | // long long size;
|
---|
174 | int i;
|
---|
175 | char *blk;
|
---|
176 |
|
---|
177 | blk = (char *) malloc(256 * 1024);
|
---|
178 |
|
---|
179 | sleep(1);
|
---|
180 | paranoid_system("sync");
|
---|
181 | sleep(1);
|
---|
182 | log_it("closeout_tape() -- entering");
|
---|
183 | retval +=
|
---|
184 | write_header_block_to_stream((off_t)0, "end-of-backup",
|
---|
185 | BLK_END_OF_BACKUP);
|
---|
186 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
|
---|
187 | /* write 1MB of crap */
|
---|
188 | for (i = 0; i < 256 * 1024; i++) {
|
---|
189 | blk[i] = (int) (random() & 0xFF);
|
---|
190 | }
|
---|
191 | for (i = 0; i < 4 * 8; i++) {
|
---|
192 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
|
---|
193 | if (should_we_write_to_next_tape
|
---|
194 | (bkpinfo->media_size[g_current_media_number], (off_t)256 * 1024)) {
|
---|
195 | start_to_write_to_next_tape();
|
---|
196 | }
|
---|
197 | }
|
---|
198 | /* write 1MB of zeroes */
|
---|
199 | /*
|
---|
200 | for (i = 0; i < 256*1024; i++)
|
---|
201 | {
|
---|
202 | blk[i] = 0;
|
---|
203 | }
|
---|
204 | for (i = 0; i < 4; i++)
|
---|
205 | {
|
---|
206 | fwrite (blk, 1, 256*1024, g_tape_stream);
|
---|
207 | if (should_we_write_to_next_tape (bkpinfo->media_size[g_current_media_number], 256*1024))
|
---|
208 | {
|
---|
209 | start_to_write_to_next_tape ();
|
---|
210 | }
|
---|
211 | }
|
---|
212 | */
|
---|
213 | sleep(2);
|
---|
214 | paranoid_pclose(g_tape_stream);
|
---|
215 | log_it("closeout_tape() -- leaving");
|
---|
216 | for (i = 0; i < g_tapecatalog->entries; i++) {
|
---|
217 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
|
---|
218 | (g_tapecatalog->el[i].type ==
|
---|
219 | fileset) ? "fileset" : "bigslice",
|
---|
220 | g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux,
|
---|
221 | g_tapecatalog->el[i].tape_posK);
|
---|
222 | }
|
---|
223 | // if (!bkpinfo->please_dont_eject)
|
---|
224 | // { eject_device(bkpinfo->media_device); }
|
---|
225 | paranoid_free(blk);
|
---|
226 | paranoid_free(g_tapecatalog);
|
---|
227 | return (retval);
|
---|
228 | }
|
---|
229 |
|
---|
230 |
|
---|
231 |
|
---|
232 | bool mt_says_tape_exists(char *dev)
|
---|
233 | {
|
---|
234 | char *command;
|
---|
235 | int res;
|
---|
236 |
|
---|
237 | malloc_string(command);
|
---|
238 | sprintf(command, "mt -f %s status", dev);
|
---|
239 | res = run_program_and_log_output(command, 1);
|
---|
240 | paranoid_free(command);
|
---|
241 | if (res) {
|
---|
242 | return (FALSE);
|
---|
243 | } else {
|
---|
244 | return (TRUE);
|
---|
245 | }
|
---|
246 | }
|
---|
247 |
|
---|
248 |
|
---|
249 |
|
---|
250 | /**
|
---|
251 | * Determine the name and size of the tape device. Tries the SCSI tape for
|
---|
252 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
|
---|
253 | * @param dev Where to put the found tape device.
|
---|
254 | * @param siz Where to put the tape size (a string like "4GB")
|
---|
255 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
|
---|
256 | */
|
---|
257 | int find_tape_device_and_size(char *dev, char *siz)
|
---|
258 | {
|
---|
259 | char tmp[MAX_STR_LEN];
|
---|
260 | char command[MAX_STR_LEN * 2];
|
---|
261 | char cdr_exe[MAX_STR_LEN];
|
---|
262 | // char tape_description_[MAX_STR_LEN];
|
---|
263 | // char tape_manufacturer_cdr[MAX_STR_LEN];
|
---|
264 | // FILE*fin;
|
---|
265 | int res;
|
---|
266 |
|
---|
267 | log_to_screen("I am looking for your tape streamer. Please wait.");
|
---|
268 | dev[0] = siz[0] = '\0';
|
---|
269 | if (find_home_of_exe("cdrecord")) {
|
---|
270 | strcpy(cdr_exe, "cdrecord");
|
---|
271 | } else {
|
---|
272 | strcpy(cdr_exe, "dvdrecord");
|
---|
273 | }
|
---|
274 | sprintf(command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
|
---|
275 | cdr_exe);
|
---|
276 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
|
---|
277 | if (atoi(tmp) != 1) {
|
---|
278 | log_it
|
---|
279 | ("Either too few or too many tape streamers for me to detect...");
|
---|
280 | strcpy(dev, VANILLA_SCSI_TAPE);
|
---|
281 | return 1;
|
---|
282 | }
|
---|
283 | sprintf(command,
|
---|
284 | "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | cut -d' ' -f2 | head -n1",
|
---|
285 | cdr_exe);
|
---|
286 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
|
---|
287 | if (strlen(tmp) < 2) {
|
---|
288 | log_it("Could not find tape device");
|
---|
289 | return 1;
|
---|
290 | }
|
---|
291 | sprintf(command,
|
---|
292 | "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | cut -d' ' -f3 | cut -d')' -f1 | head -n1",
|
---|
293 | cdr_exe);
|
---|
294 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
|
---|
295 | strcpy(dev, VANILLA_SCSI_TAPE);
|
---|
296 | dev[strlen(dev) - 1] = '\0';
|
---|
297 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
|
---|
298 | res = 0;
|
---|
299 | if (!mt_says_tape_exists(dev)) {
|
---|
300 | strcpy(dev, ALT_TAPE);
|
---|
301 | if (!mt_says_tape_exists(dev)) {
|
---|
302 | log_it("Cannot openin %s", dev);
|
---|
303 | strcpy(dev, "/dev/st0");
|
---|
304 | if (!mt_says_tape_exists(dev)) {
|
---|
305 | log_it("Cannot openin %s", dev);
|
---|
306 | strcpy(dev, "/dev/osst0");
|
---|
307 | if (!mt_says_tape_exists(dev)) {
|
---|
308 | res++;
|
---|
309 | } else {
|
---|
310 | res = 0;
|
---|
311 | }
|
---|
312 | }
|
---|
313 | }
|
---|
314 | }
|
---|
315 |
|
---|
316 | log_it("At this point, dev = %s and res = %d", dev, res);
|
---|
317 |
|
---|
318 | strcpy(tmp, call_program_and_get_last_line_of_output("\
|
---|
319 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
|
---|
320 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
|
---|
321 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'"));
|
---|
322 |
|
---|
323 | if (mt_says_tape_exists(dev)) {
|
---|
324 | res = 0;
|
---|
325 | } else {
|
---|
326 | log_it("Turning %s", dev);
|
---|
327 | strcpy(tmp, (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
|
---|
328 | sprintf(dev, "/dev/os%s", tmp);
|
---|
329 | log_it("...into %s", dev);
|
---|
330 | if (mt_says_tape_exists(dev)) {
|
---|
331 | res = 0;
|
---|
332 | } else {
|
---|
333 | res++;
|
---|
334 | }
|
---|
335 | }
|
---|
336 |
|
---|
337 | siz[0] = '\0';
|
---|
338 | log_it("res=%d; dev=%s", res, dev);
|
---|
339 |
|
---|
340 | if (res) {
|
---|
341 | return (res);
|
---|
342 | }
|
---|
343 |
|
---|
344 | if (strlen(tmp) < 2) {
|
---|
345 | siz[0] = '\0';
|
---|
346 | log_it("Warning - size of tape unknown");
|
---|
347 | return (0);
|
---|
348 | } else {
|
---|
349 | strcpy(siz, tmp);
|
---|
350 | return (0);
|
---|
351 | }
|
---|
352 | }
|
---|
353 |
|
---|
354 |
|
---|
355 |
|
---|
356 |
|
---|
357 |
|
---|
358 |
|
---|
359 | int read_EXAT_files_from_tape(long long *ptmp_size, char *tmp_fname,
|
---|
360 | int *pctrl_chr, char *xattr_fname,
|
---|
361 | char *acl_fname)
|
---|
362 | {
|
---|
363 | int res = 0;
|
---|
364 | char *fname = (char *)&res; /* Should NOT be NULL */
|
---|
365 | char *tmp = NULL;
|
---|
366 |
|
---|
367 | // xattr
|
---|
368 | if (g_getfattr) {
|
---|
369 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
370 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
371 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
372 | }
|
---|
373 | if (strstr(fname, "xattr") == NULL) {
|
---|
374 | asprintf(&tmp,"Wrong order expected xattr, got %s, sunshine.", fname);
|
---|
375 | fatal_error(tmp);
|
---|
376 | }
|
---|
377 | read_file_from_stream_to_file(xattr_fname, *ptmp_size);
|
---|
378 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
379 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
380 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
381 | }
|
---|
382 | log_msg(1, "Got xattr");
|
---|
383 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
384 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
385 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
386 | }
|
---|
387 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
388 | if (*pctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
389 | log_msg(1, "No acl attributes found, skipping to afio files");
|
---|
390 | return(0);
|
---|
391 | } else {
|
---|
392 | if (*pctrl_chr != BLK_START_EXTENDED_ATTRIBUTES) {
|
---|
393 | wrong_marker(BLK_START_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
394 | }
|
---|
395 | }
|
---|
396 | }
|
---|
397 | // acl
|
---|
398 | if (g_getfacl) {
|
---|
399 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
400 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
401 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
402 | }
|
---|
403 | if (strstr(fname, "acl") == NULL) {
|
---|
404 | asprintf(&tmp,"Wrong order expected acl, got %s, sunshine.", fname);
|
---|
405 | fatal_error(tmp);
|
---|
406 | }
|
---|
407 | read_file_from_stream_to_file(acl_fname, *ptmp_size);
|
---|
408 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
409 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
410 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
411 | }
|
---|
412 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
413 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
414 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
415 | }
|
---|
416 | log_msg(1, "Got acl");
|
---|
417 | }
|
---|
418 | // tarball itself
|
---|
419 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
420 | log_msg(1, "End of extended attributes, now looking for afioball");
|
---|
421 | return (0);
|
---|
422 | }
|
---|
423 |
|
---|
424 |
|
---|
425 | int write_EXAT_files_to_tape(char *xattr_fname,
|
---|
426 | char *acl_fname)
|
---|
427 | {
|
---|
428 | int res = 0;
|
---|
429 | if (g_getfattr) {
|
---|
430 | // xattr
|
---|
431 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
432 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
433 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
434 | BLK_START_EXAT_FILE);
|
---|
435 | write_file_to_stream_from_file(xattr_fname);
|
---|
436 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
437 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
438 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
439 | }
|
---|
440 | if (g_getfacl) {
|
---|
441 | // acl
|
---|
442 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
443 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
444 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
445 | BLK_START_EXAT_FILE);
|
---|
446 | write_file_to_stream_from_file(acl_fname);
|
---|
447 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
448 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
449 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
450 | }
|
---|
451 | return (res);
|
---|
452 | }
|
---|
453 |
|
---|
454 |
|
---|
455 |
|
---|
456 |
|
---|
457 | /**
|
---|
458 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
459 | * @param tapeno The tape number to insist on.
|
---|
460 | * @bug There is currently no way to actually verify that the user has actually
|
---|
461 | * inserted the right tape.
|
---|
462 | */
|
---|
463 | void insist_on_this_tape_number(int tapeno)
|
---|
464 | {
|
---|
465 | int i;
|
---|
466 | char tmp[MAX_STR_LEN];
|
---|
467 |
|
---|
468 | log_it("Insisting on tape #%d", tapeno);
|
---|
469 | if (g_current_media_number != tapeno) {
|
---|
470 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
471 | sprintf(tmp,
|
---|
472 | "When the tape drive goes quiet, please insert volume %d in this series.",
|
---|
473 | tapeno);
|
---|
474 | popup_and_OK(tmp);
|
---|
475 | open_evalcall_form("Waiting while the tape drive settles");
|
---|
476 | } else {
|
---|
477 | open_evalcall_form("Waiting while the tape drive rewinds");
|
---|
478 | }
|
---|
479 |
|
---|
480 | for (i = 0; i <= 100; i += 2) {
|
---|
481 | usleep(100000);
|
---|
482 | update_evalcall_form(i);
|
---|
483 | }
|
---|
484 | close_evalcall_form();
|
---|
485 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
486 | g_current_media_number = tapeno;
|
---|
487 |
|
---|
488 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
489 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
490 | }
|
---|
491 |
|
---|
492 |
|
---|
493 |
|
---|
494 |
|
---|
495 | /**
|
---|
496 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
497 | */
|
---|
498 | void log_tape_pos(void)
|
---|
499 | {
|
---|
500 | /*@ buffers ***************************************************** */
|
---|
501 |
|
---|
502 |
|
---|
503 | /*@ end vars *************************************************** */
|
---|
504 |
|
---|
505 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
506 | (long) g_tape_posK >> 10);
|
---|
507 | }
|
---|
508 |
|
---|
509 |
|
---|
510 |
|
---|
511 |
|
---|
512 | /**
|
---|
513 | * Add a file to a collection of recently archived filesets/slices.
|
---|
514 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
515 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
516 | * otherwise we generate a fatal_error().
|
---|
517 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
518 | * @param latest_fname The file to place in the collection.
|
---|
519 | * @return 0, always.
|
---|
520 | * @bug Return value is redundant.
|
---|
521 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
522 | */
|
---|
523 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
524 | {
|
---|
525 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
526 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
527 | int last, curr, i;
|
---|
528 | t_archtype type = other;
|
---|
529 | char command[MAX_STR_LEN];
|
---|
530 | char tmpdir[MAX_STR_LEN];
|
---|
531 | char old_fname[MAX_STR_LEN];
|
---|
532 | char *p;
|
---|
533 | char suffix[16];
|
---|
534 |
|
---|
535 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
536 | sprintf(tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
537 | if ((p = strrchr(latest_fname, '.'))) {
|
---|
538 | strcpy(suffix, ++p);
|
---|
539 | } else {
|
---|
540 | suffix[0] = '\0';
|
---|
541 | }
|
---|
542 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
543 | type = fileset;
|
---|
544 | } else if (strstr(latest_fname, "slice")) {
|
---|
545 | type = biggieslice;
|
---|
546 | } else {
|
---|
547 | log_it("fname = %s", latest_fname);
|
---|
548 | fatal_error
|
---|
549 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
550 | }
|
---|
551 | mkdir(tmpdir, 0x700);
|
---|
552 | sprintf(command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
553 | if (run_program_and_log_output(command, 6)) {
|
---|
554 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
555 | latest_fname, tmpdir);
|
---|
556 | }
|
---|
557 | last = g_tapecatalog->entries - 1;
|
---|
558 | if (last <= 0) {
|
---|
559 | iamhere("Too early to start deleting from collection.");
|
---|
560 | return (0);
|
---|
561 | }
|
---|
562 | final_alleged_writeK = g_tapecatalog->el[last].tape_posK;
|
---|
563 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
564 | for (curr = last; curr >= 0; curr--) {
|
---|
565 | cposK = g_tapecatalog->el[curr].tape_posK;
|
---|
566 | if (cposK < final_projected_certain_writeK) {
|
---|
567 | final_actually_certain_writeK = cposK;
|
---|
568 | break;
|
---|
569 | }
|
---|
570 | }
|
---|
571 | if (curr < 0) {
|
---|
572 | iamhere
|
---|
573 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
574 | return (0);
|
---|
575 | }
|
---|
576 | // log_it( "There are %lld KB (more than %d KB) in my backcatalog", final_alleged_writeK - final_actually_certain_writeK, bufsize_K);
|
---|
577 |
|
---|
578 | for (i = curr - 1; i >= 0 && curr - i < 10; i--) {
|
---|
579 | sprintf(old_fname, "%s/%s", tmpdir, g_tapecatalog->el[i].fname);
|
---|
580 | unlink(old_fname);
|
---|
581 | }
|
---|
582 | return (0);
|
---|
583 | }
|
---|
584 |
|
---|
585 |
|
---|
586 |
|
---|
587 |
|
---|
588 | /**
|
---|
589 | * Open the CD stream for input.
|
---|
590 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
591 | * @return 0 for success, nonzero for failure.
|
---|
592 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
593 | */
|
---|
594 | int openin_cdstream()
|
---|
595 | {
|
---|
596 | return (openin_tape());
|
---|
597 | }
|
---|
598 |
|
---|
599 | /**
|
---|
600 | * FIFO used to read/write to the tape device.
|
---|
601 | * @bug This seems obsolete now that we call an external @c buffer program. Please look onto this.
|
---|
602 | */
|
---|
603 | char g_tape_fifo[MAX_STR_LEN];
|
---|
604 |
|
---|
605 |
|
---|
606 |
|
---|
607 | int set_tape_block_size_with_mt(long internal_tape_block_size)
|
---|
608 | {
|
---|
609 | char *tmp;
|
---|
610 | int res;
|
---|
611 |
|
---|
612 | if (strncmp(bkpinfo->media_device, "/dev/", 5)) {
|
---|
613 | log_msg(1,
|
---|
614 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
615 | return (0);
|
---|
616 | }
|
---|
617 | malloc_string(tmp);
|
---|
618 | sprintf(tmp, "mt -f %s setblk %ld", bkpinfo->media_device, internal_tape_block_size);
|
---|
619 | res = run_program_and_log_output(tmp, 3);
|
---|
620 | paranoid_free(tmp);
|
---|
621 | return (res);
|
---|
622 | }
|
---|
623 |
|
---|
624 | /**
|
---|
625 | * Return the non-rewinding device when passed the normal one
|
---|
626 | * @param tapedev The tape device to open for writing.
|
---|
627 | * @note the caller needs to free the string returned
|
---|
628 | */
|
---|
629 | char *get_non_rewind_dev(char *tapedev)
|
---|
630 | {
|
---|
631 |
|
---|
632 | char *ntapedev = NULL;
|
---|
633 | char *p = NULL;
|
---|
634 | char *q = NULL;
|
---|
635 | char *r = NULL;
|
---|
636 |
|
---|
637 | ntapedev = (char *)malloc(strlen(tapedev)+sizeof(char));
|
---|
638 | p = strrchr(tapedev,'/');
|
---|
639 | if (p == NULL) {
|
---|
640 | log_it("Didn't find a '/' in %s",tapedev);
|
---|
641 | return(NULL);
|
---|
642 | }
|
---|
643 |
|
---|
644 | /* Copy tapedev content up to the last / */
|
---|
645 | q = tapedev;
|
---|
646 | r = ntapedev;
|
---|
647 | while (q != p) {
|
---|
648 | *r = *q;
|
---|
649 | r++;
|
---|
650 | q++;
|
---|
651 | }
|
---|
652 | /* Copy the '/' */
|
---|
653 | *r = *q;
|
---|
654 | r++;
|
---|
655 | q++;
|
---|
656 | /* Adds a 'n' - non-rewinding */
|
---|
657 | *r = 'n';
|
---|
658 | r++;
|
---|
659 | /* Copy the rest of tapedev */
|
---|
660 | while (*q != '\0') {
|
---|
661 | *r = *q;
|
---|
662 | r++;
|
---|
663 | q++;
|
---|
664 | }
|
---|
665 | *r = '\0';
|
---|
666 | if (mt_says_tape_exists(ntapedev)) {
|
---|
667 | log_it("Non-rewinding tape device is %s",ntapedev);
|
---|
668 | } else {
|
---|
669 | log_it("Unable to find non-rewinding tape device.");
|
---|
670 | ntapedev = NULL;
|
---|
671 | }
|
---|
672 | return(ntapedev);
|
---|
673 | }
|
---|
674 |
|
---|
675 |
|
---|
676 |
|
---|
677 | /**
|
---|
678 | * Handle OBDR if we were asked to do so
|
---|
679 | * @param tapedev The tape device to open for reading.
|
---|
680 | */
|
---|
681 | int skip_obdr()
|
---|
682 | {
|
---|
683 | char *command = NULL;
|
---|
684 | int res = 0;
|
---|
685 |
|
---|
686 | log_it("Skipping OBDR headers");
|
---|
687 | asprintf(&command, "mt -f %s fsf 2",bkpinfo->media_device);
|
---|
688 | res = run_program_and_log_output(command, 1);
|
---|
689 | paranoid_free(command);
|
---|
690 |
|
---|
691 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
692 | return(res);
|
---|
693 | }
|
---|
694 |
|
---|
695 | /**
|
---|
696 | * Handle OBDR if we were asked to do so
|
---|
697 | * @param tapedev The tape device to open for writing.
|
---|
698 | * @return 0 for success, nonzero for failure.
|
---|
699 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
700 | * EXISTING DATA on the tape!
|
---|
701 | */
|
---|
702 | int create_obdr()
|
---|
703 | {
|
---|
704 |
|
---|
705 | char *command = NULL;
|
---|
706 | int res = 0;
|
---|
707 |
|
---|
708 | log_it("Creating OBDR headers");
|
---|
709 | /* OBDR: First block 10 kB of zero bs = 512 */
|
---|
710 | asprintf(&command, "mt -f %s compression off",bkpinfo->media_device);
|
---|
711 | res = run_program_and_log_output(command, 1);
|
---|
712 | paranoid_free(command);
|
---|
713 |
|
---|
714 | asprintf(&command, "mt -f %s rewind",bkpinfo->media_device);
|
---|
715 | res += run_program_and_log_output(command, 1);
|
---|
716 | paranoid_free(command);
|
---|
717 |
|
---|
718 | set_tape_block_size_with_mt(512);
|
---|
719 |
|
---|
720 | asprintf(&command, "dd if=/dev/zero of=%s bs=512 count=20",bkpinfo->media_device);
|
---|
721 | res += run_program_and_log_output(command, 1);
|
---|
722 | paranoid_free(command);
|
---|
723 |
|
---|
724 | /* OBDR: then ISO boot image bs = 2048 */
|
---|
725 | set_tape_block_size_with_mt(2048);
|
---|
726 |
|
---|
727 | asprintf(&command, "dd if=%s of=%s bs=2048",MINDI_CACHE"/mondorescue.iso",bkpinfo->media_device);
|
---|
728 | res += run_program_and_log_output(command, 1);
|
---|
729 | paranoid_free(command);
|
---|
730 |
|
---|
731 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
732 | return(res);
|
---|
733 | }
|
---|
734 |
|
---|
735 |
|
---|
736 | /**
|
---|
737 | * Open the tape device for input.
|
---|
738 | * @param bkpinfo The backup information structure. Fields used:
|
---|
739 | * - @c bkpinfo->media_device
|
---|
740 | * - @c bkpinfo->tmpdir
|
---|
741 | * @return 0 for success, nonzero for failure.
|
---|
742 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
743 | */
|
---|
744 | int openin_tape()
|
---|
745 | {
|
---|
746 | /*@ buffer ***************************************************** */
|
---|
747 | char fname[MAX_STR_LEN];
|
---|
748 | char *datablock;
|
---|
749 | char *ntapedev = NULL;
|
---|
750 | char tmp[MAX_STR_LEN];
|
---|
751 | char old_cwd[MAX_STR_LEN];
|
---|
752 | char outfname[MAX_STR_LEN];
|
---|
753 | /*@ int ******************************************************* */
|
---|
754 | int i;
|
---|
755 | int j;
|
---|
756 | int res = 0;
|
---|
757 | long length, templong;
|
---|
758 | size_t k;
|
---|
759 | int retval = 0;
|
---|
760 | int ctrl_chr;
|
---|
761 |
|
---|
762 | /*@ long long ************************************************* */
|
---|
763 | long long size;
|
---|
764 |
|
---|
765 | /*@ pointers ************************************************** */
|
---|
766 | FILE *fout;
|
---|
767 |
|
---|
768 | /*@ end vars *************************************************** */
|
---|
769 |
|
---|
770 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
771 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
772 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
773 | }
|
---|
774 | g_tapecatalog->entries = 0;
|
---|
775 | g_tape_posK = 0;
|
---|
776 | if (g_tape_stream) {
|
---|
777 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
778 | return (0);
|
---|
779 | }
|
---|
780 | ntapedev = get_non_rewind_dev(bkpinfo->media_device);
|
---|
781 | if ((bkpinfo->use_obdr) && (ntapedev != NULL)) {
|
---|
782 | strncpy(bkpinfo->media_device,ntapedev,(size_t)(MAX_STR_LEN / 4));
|
---|
783 | res = skip_obdr();
|
---|
784 | if (res != 0) {
|
---|
785 | log_it("Not able to skip OBDR - Restore will have to be done manually");
|
---|
786 | }
|
---|
787 | } else {
|
---|
788 | if (ntapedev == NULL) {
|
---|
789 | log_it("Not able to skip OBDR - Restore will have to be done manually");
|
---|
790 | }
|
---|
791 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
792 | }
|
---|
793 | paranoid_free(ntapedev);
|
---|
794 |
|
---|
795 | insist_on_this_tape_number(1);
|
---|
796 | sprintf(outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
797 | make_hole_for_file(outfname);
|
---|
798 |
|
---|
799 | // start_buffer_process( bkpinfo->media_device, g_tape_fifo, FALSE);
|
---|
800 | log_it("Opening IN tape");
|
---|
801 | if (!
|
---|
802 | (g_tape_stream =
|
---|
803 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
804 | bkpinfo->internal_tape_block_size))) {
|
---|
805 | log_OS_error(g_tape_fifo);
|
---|
806 | log_to_screen("Cannot openin stream device");
|
---|
807 | return (1);
|
---|
808 | }
|
---|
809 | log_to_screen("Reading stream");
|
---|
810 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
811 | /* skip data disks */
|
---|
812 | open_evalcall_form("Skipping data disks on stream");
|
---|
813 | log_to_screen("Skipping data disks on stream");
|
---|
814 | if (!(fout = fopen(outfname, "w"))) {
|
---|
815 | log_OS_error(outfname);
|
---|
816 | log_to_screen("Cannot openout datadisk all.tar.gz file");
|
---|
817 | return (-1);
|
---|
818 | }
|
---|
819 | if (!(datablock = (char *) malloc(256 * 1024))) {
|
---|
820 | log_to_screen("Unable to malloc 256*1024");
|
---|
821 | exit(1);
|
---|
822 | }
|
---|
823 | for (i = 0; i < 32; i++) {
|
---|
824 | for (j = 0; j < 4; j++) {
|
---|
825 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
826 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
827 | g_tape_stream);
|
---|
828 | }
|
---|
829 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
830 | g_tape_posK += length / 1024;
|
---|
831 | }
|
---|
832 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
833 | {
|
---|
834 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
835 | update_evalcall_form((int) (templong));
|
---|
836 | }
|
---|
837 | }
|
---|
838 | paranoid_fclose(fout);
|
---|
839 | paranoid_free(datablock);
|
---|
840 | /* find initial blocks */
|
---|
841 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
842 | retval += res;
|
---|
843 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
844 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
845 | }
|
---|
846 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
847 | retval += res;
|
---|
848 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
849 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
850 | }
|
---|
851 | close_evalcall_form();
|
---|
852 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
853 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
854 | chdir(bkpinfo->tmpdir);
|
---|
855 | sprintf(tmp, "tar -zxf %s ./tmp/mondo-restore.cfg 2> /dev/null",
|
---|
856 | outfname);
|
---|
857 | paranoid_system(tmp);
|
---|
858 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
859 | chdir(old_cwd);
|
---|
860 | unlink(outfname);
|
---|
861 | return (retval);
|
---|
862 | }
|
---|
863 |
|
---|
864 |
|
---|
865 | /**
|
---|
866 | * Start writing to a CD stream.
|
---|
867 | * @param cddev The CD device to openout via cdrecord.
|
---|
868 | * @param speed The speed to write at.
|
---|
869 | * @return 0 for success, nonzero for failure.
|
---|
870 | * @note This should be called only from backup processes.
|
---|
871 | */
|
---|
872 | int openout_cdstream(char *cddev, int speed)
|
---|
873 | {
|
---|
874 | /*@ buffers ***************************************************** */
|
---|
875 | char command[MAX_STR_LEN * 2];
|
---|
876 |
|
---|
877 | /*@ end vars *************************************************** */
|
---|
878 |
|
---|
879 | /* add 'dummy' if testing */
|
---|
880 | sprintf(command,
|
---|
881 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
882 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
883 | /* initialise the catalog */
|
---|
884 | g_current_media_number = 1;
|
---|
885 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
886 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
887 | }
|
---|
888 | g_tapecatalog->entries = 0;
|
---|
889 | /* log stuff */
|
---|
890 | log_it("Opening OUT cdstream with the command");
|
---|
891 | log_it(command);
|
---|
892 | /* log_it("Let's see what happens, shall we?"); */
|
---|
893 | g_tape_stream = popen(command, "w");
|
---|
894 | if (g_tape_stream) {
|
---|
895 | return (0);
|
---|
896 | } else {
|
---|
897 | log_to_screen("Failed to openout to cdstream (fifo)");
|
---|
898 | return (1);
|
---|
899 | }
|
---|
900 | }
|
---|
901 |
|
---|
902 | /**
|
---|
903 | * Start writing to a tape device for the backup.
|
---|
904 | * Handle OBDR if we were asked to do so
|
---|
905 | * @param tapedev The tape device to open for writing.
|
---|
906 | * @return 0 for success, nonzero for failure.
|
---|
907 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
908 | * EXISTING DATA on the tape!
|
---|
909 | */
|
---|
910 | int openout_tape() {
|
---|
911 |
|
---|
912 | char *ntapedev = NULL;
|
---|
913 |
|
---|
914 | g_current_media_number = 1;
|
---|
915 | if (g_tape_stream) {
|
---|
916 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
917 | return (0);
|
---|
918 | }
|
---|
919 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
920 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
921 | }
|
---|
922 | g_tapecatalog->entries = 0;
|
---|
923 | g_tape_posK = 0;
|
---|
924 |
|
---|
925 | ntapedev = get_non_rewind_dev(bkpinfo->media_device);
|
---|
926 | if ((bkpinfo->use_obdr) && (ntapedev != NULL)) {
|
---|
927 | strncpy(bkpinfo->media_device,ntapedev,(size_t)(MAX_STR_LEN / 4));
|
---|
928 | create_obdr();
|
---|
929 | } else {
|
---|
930 | if (ntapedev == NULL) {
|
---|
931 | log_it("Not able to create OBDR - Restore will have to be done manually");
|
---|
932 | }
|
---|
933 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
934 | }
|
---|
935 | paranoid_free(ntapedev);
|
---|
936 | log_it("Opening OUT tape");
|
---|
937 | if (!
|
---|
938 | (g_tape_stream =
|
---|
939 | open_device_via_buffer(bkpinfo->media_device, 'w', bkpinfo->internal_tape_block_size))) {
|
---|
940 | log_OS_error(g_tape_fifo);
|
---|
941 | log_to_screen("Cannot openin stream device");
|
---|
942 | return (1);
|
---|
943 | }
|
---|
944 | return (0);
|
---|
945 | }
|
---|
946 |
|
---|
947 |
|
---|
948 |
|
---|
949 |
|
---|
950 | /**
|
---|
951 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
952 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
953 | * @param outfile The file to write to.
|
---|
954 | * @param size The size of the file in the input stream.
|
---|
955 | * @return 0 for success, nonzero for failure.
|
---|
956 | */
|
---|
957 | int
|
---|
958 | read_file_from_stream_to_file(char *outfile, long long size)
|
---|
959 | {
|
---|
960 |
|
---|
961 | /*@ int ******************************************************** */
|
---|
962 | int res;
|
---|
963 |
|
---|
964 | /*@ end vars *************************************************** */
|
---|
965 |
|
---|
966 | res = read_file_from_stream_FULL(outfile, NULL, size);
|
---|
967 |
|
---|
968 | return (res);
|
---|
969 | }
|
---|
970 |
|
---|
971 |
|
---|
972 |
|
---|
973 | /**
|
---|
974 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
975 | * by @p fout.
|
---|
976 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
977 | * @param fout The stream to write the file to.
|
---|
978 | * @param size The size of the file in bytes.
|
---|
979 | * @return 0 for success, nonzero for failure.
|
---|
980 | */
|
---|
981 | int
|
---|
982 | read_file_from_stream_to_stream(FILE * fout, long long size)
|
---|
983 | {
|
---|
984 |
|
---|
985 | /*@ int ******************************************************** */
|
---|
986 | int res;
|
---|
987 |
|
---|
988 | /*@ end vars *************************************************** */
|
---|
989 |
|
---|
990 | res = read_file_from_stream_FULL(NULL, fout, size);
|
---|
991 | /* fflush(g_tape_stream);
|
---|
992 | fflush(fout);*/
|
---|
993 | return (res);
|
---|
994 | }
|
---|
995 |
|
---|
996 |
|
---|
997 |
|
---|
998 | /**
|
---|
999 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
1000 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
1001 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
1002 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
1003 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
1004 | * @param outfname If non-NULL, write to this file.
|
---|
1005 | * @param foutstream If non-NULL, write to this stream.
|
---|
1006 | * @param orig_size The original length of the file in bytes.
|
---|
1007 | * @return 0 for success, nonzero for failure.
|
---|
1008 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
1009 | */
|
---|
1010 | int
|
---|
1011 | read_file_from_stream_FULL(char *outfname, FILE * foutstream, long long orig_size)
|
---|
1012 | {
|
---|
1013 | /*@ buffers ***************************************************** */
|
---|
1014 | char *tmp;
|
---|
1015 | char *datablock;
|
---|
1016 | char *temp_fname;
|
---|
1017 | char *temp_cksum;
|
---|
1018 | char *actual_cksum;
|
---|
1019 | // char *pA, *pB;
|
---|
1020 |
|
---|
1021 | /*@ int ********************************************************* */
|
---|
1022 | int retval = 0;
|
---|
1023 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
1024 | int i, ch;
|
---|
1025 | #endif
|
---|
1026 | int noof_blocks;
|
---|
1027 | int ctrl_chr;
|
---|
1028 | int res;
|
---|
1029 | /*@ pointers **************************************************** */
|
---|
1030 | FILE *fout;
|
---|
1031 |
|
---|
1032 | /*@ long ***************************************************** */
|
---|
1033 | long bytes_to_write = 0L /*,i */ ;
|
---|
1034 | // long bytes_successfully_read_in_this_time = 0;
|
---|
1035 |
|
---|
1036 | /*@ long long *************************************************** */
|
---|
1037 | long long temp_size, size;
|
---|
1038 | long bytes_read, bytes_to_read;
|
---|
1039 | long long total_read_from_tape_for_this_file = 0;
|
---|
1040 | long long where_I_was_before_tape_change = 0;
|
---|
1041 | /*@ unsigned int ************************************************ */
|
---|
1042 | /* unsigned int ch; */
|
---|
1043 | unsigned int crc16;
|
---|
1044 | unsigned int crctt;
|
---|
1045 |
|
---|
1046 | bool had_to_resync = FALSE;
|
---|
1047 |
|
---|
1048 | /*@ init ******************************************************* */
|
---|
1049 | malloc_string(tmp);
|
---|
1050 | malloc_string(temp_fname);
|
---|
1051 | malloc_string(temp_cksum);
|
---|
1052 | malloc_string(actual_cksum);
|
---|
1053 | datablock = malloc(TAPE_BLOCK_SIZE);
|
---|
1054 | crc16 = 0;
|
---|
1055 | crctt = 0;
|
---|
1056 | size = orig_size;
|
---|
1057 |
|
---|
1058 | /*@ end vars *************************************************** */
|
---|
1059 |
|
---|
1060 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
1061 | if (orig_size != temp_size && orig_size != -1) {
|
---|
1062 | sprintf(tmp,
|
---|
1063 | "output file's size should be %ld K but is apparently %ld K",
|
---|
1064 | (long) size >> 10, (long) temp_size >> 10);
|
---|
1065 | log_to_screen(tmp);
|
---|
1066 | }
|
---|
1067 | if (ctrl_chr != BLK_START_FILE) {
|
---|
1068 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
1069 | return (1);
|
---|
1070 | }
|
---|
1071 | /* Not used
|
---|
1072 | sprintf(tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
1073 | outfname, (long) size >> 10);
|
---|
1074 | */
|
---|
1075 |
|
---|
1076 | if (foutstream) {
|
---|
1077 | fout = foutstream;
|
---|
1078 | } else {
|
---|
1079 | fout = fopen(outfname, "w");
|
---|
1080 | }
|
---|
1081 | if (!fout) {
|
---|
1082 | log_OS_error(outfname);
|
---|
1083 | log_to_screen("Cannot openout file");
|
---|
1084 | return (1);
|
---|
1085 | }
|
---|
1086 | total_read_from_tape_for_this_file = 0;
|
---|
1087 | for (noof_blocks = 0; size > 0;
|
---|
1088 | noof_blocks++, size -=
|
---|
1089 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
1090 | bytes_read) {
|
---|
1091 | bytes_to_write =
|
---|
1092 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
1093 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
1094 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
1095 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
1096 | // crctt=crc16=0;
|
---|
1097 | where_I_was_before_tape_change = size;
|
---|
1098 | log_msg(4, "where_I_was_... = %lld",
|
---|
1099 | where_I_was_before_tape_change);
|
---|
1100 | start_to_read_from_next_tape();
|
---|
1101 | log_msg(4, "Started reading from next tape.");
|
---|
1102 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
1103 | log_msg(4, "Skipped irrelevant files OK.");
|
---|
1104 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
1105 | size -= bytes_to_write) {
|
---|
1106 | bytes_read =
|
---|
1107 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
1108 | }
|
---|
1109 | log_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
1110 | where_I_was_before_tape_change);
|
---|
1111 | log_to_screen("Successfully re-sync'd tape");
|
---|
1112 | had_to_resync = TRUE;
|
---|
1113 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
1114 | }
|
---|
1115 |
|
---|
1116 | (void) fwrite(datablock, 1, (size_t) bytes_to_write, fout); // for blocking reasons, bytes_successfully_read_in isn't necessarily the same as bytes_to_write
|
---|
1117 |
|
---|
1118 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
1119 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
1120 | ch = datablock[i];
|
---|
1121 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
1122 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
1123 | }
|
---|
1124 | #endif
|
---|
1125 | }
|
---|
1126 | log_msg(6, "Total read from tape for this file = %lld",
|
---|
1127 | total_read_from_tape_for_this_file);
|
---|
1128 | log_msg(6, ".......................... Should be %lld", orig_size);
|
---|
1129 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
1130 | sprintf(actual_cksum, "%04x%04x", crc16, crctt);
|
---|
1131 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
1132 | } else {
|
---|
1133 | paranoid_fclose(fout);
|
---|
1134 | }
|
---|
1135 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
1136 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
1137 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
1138 | // fatal_error("Bad marker"); // return(1);
|
---|
1139 | }
|
---|
1140 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
1141 | sprintf(tmp, "actual cksum=%s; recorded cksum=%s", actual_cksum,
|
---|
1142 | temp_cksum);
|
---|
1143 | log_to_screen(tmp);
|
---|
1144 | sprintf(tmp, "%s (%ld K) is corrupt on tape", temp_fname,
|
---|
1145 | (long) orig_size >> 10);
|
---|
1146 | log_to_screen(tmp);
|
---|
1147 | retval++;
|
---|
1148 | } else {
|
---|
1149 | sprintf(tmp, "%s is GOOD on tape", temp_fname);
|
---|
1150 | /* log_it(tmp); */
|
---|
1151 | }
|
---|
1152 | paranoid_free(datablock);
|
---|
1153 | paranoid_free(tmp);
|
---|
1154 | paranoid_free(temp_fname);
|
---|
1155 | paranoid_free(temp_cksum);
|
---|
1156 | paranoid_free(actual_cksum);
|
---|
1157 | return (retval);
|
---|
1158 | }
|
---|
1159 |
|
---|
1160 |
|
---|
1161 |
|
---|
1162 | /**
|
---|
1163 | * Read a header block from the currently opened stream (CD or tape).
|
---|
1164 | * This block indicates the length of the following file (if it's file-related)
|
---|
1165 | * the filename (if it's file-related), and the block type.
|
---|
1166 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
1167 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
1168 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
1169 | * @return 0 for success, nonzero for failure.
|
---|
1170 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
1171 | */
|
---|
1172 | int
|
---|
1173 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
1174 | int *pcontrol_char)
|
---|
1175 | {
|
---|
1176 |
|
---|
1177 | /*@ buffers ***************************************************** */
|
---|
1178 | char *tempblock;
|
---|
1179 |
|
---|
1180 | /*@ int ********************************************************* */
|
---|
1181 | int i, retval;
|
---|
1182 |
|
---|
1183 | /*@ end vars *************************************************** */
|
---|
1184 |
|
---|
1185 | tempblock = (char *) malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
1186 |
|
---|
1187 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
1188 | tempblock[i] = 0;
|
---|
1189 | }
|
---|
1190 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
1191 | g_tape_posK +=
|
---|
1192 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
1193 | g_tape_stream) / 1024;
|
---|
1194 | }
|
---|
1195 | /* memcpy((char*)plength_of_incoming_file,(char*)tempblock+7001,sizeof(long long)); */
|
---|
1196 | /* for(*plen=0,i=7;i>=0;i--) {*plen<<=8; *plen |= tempblock[7001+i];} */
|
---|
1197 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
1198 | if (strcmp(tempblock + 6000 + *pcontrol_char, STR_HEADER)) {
|
---|
1199 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
1200 | }
|
---|
1201 | strcpy(filename, tempblock + 1000);
|
---|
1202 | /* strcpy(cksum,tempblock+5555);*/
|
---|
1203 | /* log_it( "%s (reading) fname=%s, filesize=%ld K",
|
---|
1204 | marker_to_string (*pcontrol_char), filename,
|
---|
1205 | (long) ((*plen) >> 10));
|
---|
1206 | */
|
---|
1207 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
1208 | log_to_screen("I can't verify an aborted backup.");
|
---|
1209 | retval = 1;
|
---|
1210 | } else {
|
---|
1211 | retval = 0;
|
---|
1212 | }
|
---|
1213 | for (i = 1000; i < 1020; i++) {
|
---|
1214 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
1215 | tempblock[i] = ' ';
|
---|
1216 | }
|
---|
1217 | }
|
---|
1218 | tempblock[i] = '\0';
|
---|
1219 | log_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
1220 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
1221 | (long) (*plen) >> 10);
|
---|
1222 | paranoid_free(tempblock);
|
---|
1223 | return (retval);
|
---|
1224 | }
|
---|
1225 |
|
---|
1226 |
|
---|
1227 |
|
---|
1228 | /**
|
---|
1229 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
1230 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
1231 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
1232 | * we have @e all archives on some CD/tape/whatever.
|
---|
1233 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
1234 | * @param number The fileset number or biggiefile number.
|
---|
1235 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
1236 | * @param fn The original full pathname of the file we're recording.
|
---|
1237 | * @return The index of the record we just added.
|
---|
1238 | */
|
---|
1239 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
1240 | char *fn)
|
---|
1241 | {
|
---|
1242 | int last;
|
---|
1243 | char fname[MAX_TAPECAT_FNAME_LEN];
|
---|
1244 | char *p;
|
---|
1245 |
|
---|
1246 | p = strrchr(fn, '/');
|
---|
1247 | if (p) {
|
---|
1248 | p++;
|
---|
1249 | } else {
|
---|
1250 | p = fn;
|
---|
1251 | }
|
---|
1252 | strncpy(fname, p, MAX_TAPECAT_FNAME_LEN);
|
---|
1253 | fname[MAX_TAPECAT_FNAME_LEN] = '\0';
|
---|
1254 | last = g_tapecatalog->entries;
|
---|
1255 | if (last >= MAX_TAPECATALOG_ENTRIES) {
|
---|
1256 | log_it
|
---|
1257 | ("Warning - can't log #%d in tape catalog - too many entries already",
|
---|
1258 | number);
|
---|
1259 | return (-1);
|
---|
1260 | }
|
---|
1261 | g_tapecatalog->el[last].type = type;
|
---|
1262 | g_tapecatalog->el[last].number = number;
|
---|
1263 | g_tapecatalog->el[last].aux = aux;
|
---|
1264 | g_tapecatalog->el[last].tape_posK = g_tape_posK;
|
---|
1265 | strcpy(g_tapecatalog->el[last].fname, fname);
|
---|
1266 | g_tapecatalog->entries++;
|
---|
1267 | return (last); // returns the index of the record we've jsut added
|
---|
1268 | }
|
---|
1269 |
|
---|
1270 |
|
---|
1271 |
|
---|
1272 |
|
---|
1273 | /**
|
---|
1274 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
1275 | * (got SIGPIPE) or look like we will.
|
---|
1276 | * @param mediasize The size of the tape in megabytes.
|
---|
1277 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
1278 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
1279 | * autodetecting the size. Huh?
|
---|
1280 | */
|
---|
1281 |
|
---|
1282 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
1283 | bool
|
---|
1284 | should_we_write_to_next_tape(long mediasize,
|
---|
1285 | off_t length_of_incoming_file)
|
---|
1286 | {
|
---|
1287 | /*@ bool's ***************************************************** */
|
---|
1288 | bool we_need_a_new_tape = FALSE;
|
---|
1289 |
|
---|
1290 | /*@ end vars *************************************************** */
|
---|
1291 |
|
---|
1292 | if (mediasize == 0) {
|
---|
1293 | return (FALSE);
|
---|
1294 | }
|
---|
1295 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
1296 | log_it("mediasize = %ld", mediasize);
|
---|
1297 | we_need_a_new_tape = TRUE;
|
---|
1298 | log_to_screen("Should have started a new tape/CD already");
|
---|
1299 | }
|
---|
1300 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
1301 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
1302 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
1303 | mediasize);
|
---|
1304 | we_need_a_new_tape = TRUE;
|
---|
1305 | }
|
---|
1306 | return (we_need_a_new_tape);
|
---|
1307 | }
|
---|
1308 |
|
---|
1309 |
|
---|
1310 | /**
|
---|
1311 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
1312 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
1313 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
1314 | * @param the_file_I_was_reading File name to look for.
|
---|
1315 | * @return 0 for success, nonzero for failure.
|
---|
1316 | */
|
---|
1317 | int skip_incoming_files_until_we_find_this_one(char
|
---|
1318 | *the_file_I_was_reading)
|
---|
1319 | {
|
---|
1320 | char *pA;
|
---|
1321 | char *pB;
|
---|
1322 | int res;
|
---|
1323 | int ctrl_chr;
|
---|
1324 | char *temp_fname;
|
---|
1325 | char *datablock;
|
---|
1326 | long long temp_size, size;
|
---|
1327 | long bytes_to_write;
|
---|
1328 |
|
---|
1329 | datablock = malloc(TAPE_BLOCK_SIZE);
|
---|
1330 | malloc_string(temp_fname);
|
---|
1331 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
1332 | if (pB) {
|
---|
1333 | pB++;
|
---|
1334 | } else {
|
---|
1335 | pB = the_file_I_was_reading;
|
---|
1336 | }
|
---|
1337 | log_msg(1, "skip_incoming_..(%s)", pB);
|
---|
1338 | log_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
1339 | ctrl_chr = -1;
|
---|
1340 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
1341 | res =
|
---|
1342 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1343 | &ctrl_chr);
|
---|
1344 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
1345 | break;
|
---|
1346 | }
|
---|
1347 | log_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
1348 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
1349 | log_msg(3, "Still trying to re-sync w/ tape");
|
---|
1350 | }
|
---|
1351 | while (ctrl_chr != BLK_START_FILE) {
|
---|
1352 | res =
|
---|
1353 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1354 | &ctrl_chr);
|
---|
1355 | if (ctrl_chr == BLK_START_FILE) {
|
---|
1356 | break;
|
---|
1357 | }
|
---|
1358 | log_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
1359 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
1360 | log_msg(3, "Still trying to re-sync w/ tape");
|
---|
1361 | }
|
---|
1362 | pA = strrchr(temp_fname, '/');
|
---|
1363 | if (pA) {
|
---|
1364 | pA++;
|
---|
1365 | } else {
|
---|
1366 | pA = temp_fname;
|
---|
1367 | }
|
---|
1368 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
1369 | if (pB) {
|
---|
1370 | pB++;
|
---|
1371 | } else {
|
---|
1372 | pB = the_file_I_was_reading;
|
---|
1373 | }
|
---|
1374 | while (strcmp(pA, pB)) {
|
---|
1375 | log_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
1376 | the_file_I_was_reading);
|
---|
1377 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
1378 | bytes_to_write =
|
---|
1379 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
1380 | // FIXME - needs error-checking and -catching
|
---|
1381 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
1382 | }
|
---|
1383 | res =
|
---|
1384 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1385 | &ctrl_chr);
|
---|
1386 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
1387 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
1388 | }
|
---|
1389 | res =
|
---|
1390 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1391 | &ctrl_chr);
|
---|
1392 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
1393 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
1394 | }
|
---|
1395 | res =
|
---|
1396 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1397 | &ctrl_chr);
|
---|
1398 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
1399 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
1400 | }
|
---|
1401 | res =
|
---|
1402 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1403 | &ctrl_chr);
|
---|
1404 | if (ctrl_chr != BLK_START_FILE) {
|
---|
1405 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
1406 | }
|
---|
1407 | pA = strrchr(temp_fname, '/');
|
---|
1408 | if (pA) {
|
---|
1409 | pA++;
|
---|
1410 | } else {
|
---|
1411 | pA = temp_fname;
|
---|
1412 | }
|
---|
1413 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
1414 | if (pB) {
|
---|
1415 | pB++;
|
---|
1416 | } else {
|
---|
1417 | pB = the_file_I_was_reading;
|
---|
1418 | }
|
---|
1419 | }
|
---|
1420 | log_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
1421 | the_file_I_was_reading);
|
---|
1422 | paranoid_free(temp_fname);
|
---|
1423 | paranoid_free(datablock);
|
---|
1424 | return (0);
|
---|
1425 | }
|
---|
1426 |
|
---|
1427 |
|
---|
1428 | /**
|
---|
1429 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
1430 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
1431 | * @return 0 for success, nonzero for failure.
|
---|
1432 | */
|
---|
1433 | int start_to_read_from_next_tape()
|
---|
1434 | {
|
---|
1435 | /*@ int ********************************************************* */
|
---|
1436 | int res = 0;
|
---|
1437 | char *sz_msg;
|
---|
1438 | int ctrlchr;
|
---|
1439 | long long temp_size;
|
---|
1440 | malloc_string(sz_msg);
|
---|
1441 | /*@ end vars *************************************************** */
|
---|
1442 |
|
---|
1443 | paranoid_pclose(g_tape_stream);
|
---|
1444 | sync();
|
---|
1445 | sync();
|
---|
1446 | sync();
|
---|
1447 | log_it("Next tape requested.");
|
---|
1448 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
1449 | log_it("Opening IN the next tape");
|
---|
1450 | if (!
|
---|
1451 | (g_tape_stream =
|
---|
1452 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
1453 | bkpinfo->internal_tape_block_size))) {
|
---|
1454 | log_OS_error(g_tape_fifo);
|
---|
1455 | log_to_screen("Cannot openin stream device");
|
---|
1456 | return (1);
|
---|
1457 | }
|
---|
1458 | g_tape_posK = 0;
|
---|
1459 | g_sigpipe = FALSE;
|
---|
1460 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
1461 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
1462 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
1463 | }
|
---|
1464 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
1465 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
1466 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
1467 | } else {
|
---|
1468 | log_msg(3, "Next tape opened OK. Whoopee!");
|
---|
1469 | }
|
---|
1470 | paranoid_free(sz_msg);
|
---|
1471 | return (res);
|
---|
1472 | }
|
---|
1473 |
|
---|
1474 |
|
---|
1475 |
|
---|
1476 | /**
|
---|
1477 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
1478 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
1479 | * @return 0 for success, nonzero for failure.
|
---|
1480 | */
|
---|
1481 | int start_to_write_to_next_tape()
|
---|
1482 | {
|
---|
1483 | int res = 0;
|
---|
1484 | char command[MAX_STR_LEN * 2];
|
---|
1485 | paranoid_pclose(g_tape_stream);
|
---|
1486 | system("sync");
|
---|
1487 | system("sync");
|
---|
1488 | system("sync");
|
---|
1489 | log_it("New tape requested.");
|
---|
1490 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
1491 | if (g_current_media_number > MAX_NOOF_MEDIA) {
|
---|
1492 | res++;
|
---|
1493 | log_to_screen("Too many tapes. Man, you need to use nfs!");
|
---|
1494 | }
|
---|
1495 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
1496 | sprintf(command,
|
---|
1497 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
1498 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
1499 | MONDO_LOGFILE);
|
---|
1500 | log_it("Opening OUT to next CD with the command");
|
---|
1501 | log_it(command);
|
---|
1502 | log_it("Let's see what happens, shall we?");
|
---|
1503 | g_tape_stream = popen(command, "w");
|
---|
1504 | if (!g_tape_stream) {
|
---|
1505 | log_to_screen("Failed to openout to cdstream (fifo)");
|
---|
1506 | return (1);
|
---|
1507 | }
|
---|
1508 | } else {
|
---|
1509 | log_it("Opening OUT to next tape");
|
---|
1510 | if (!
|
---|
1511 | (g_tape_stream =
|
---|
1512 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
1513 | bkpinfo->internal_tape_block_size))) {
|
---|
1514 | log_OS_error(g_tape_fifo);
|
---|
1515 | log_to_screen("Cannot openin stream device");
|
---|
1516 | return (1);
|
---|
1517 | }
|
---|
1518 | }
|
---|
1519 | g_tape_posK = 0;
|
---|
1520 | g_sigpipe = FALSE;
|
---|
1521 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
1522 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
1523 | return (res);
|
---|
1524 | }
|
---|
1525 |
|
---|
1526 |
|
---|
1527 |
|
---|
1528 |
|
---|
1529 | /**
|
---|
1530 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
1531 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
1532 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
1533 | * buffer. That means that Mondo thinks they have been written, but
|
---|
1534 | * the external binary @c buffer has not actually written them. So to
|
---|
1535 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
1536 | * the old one. This insures that all archives will be on at least
|
---|
1537 | * one tape. Sounds inelegant, but it works.
|
---|
1538 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
1539 | * @return 0 for success, nonzero for failure.
|
---|
1540 | */
|
---|
1541 | int write_backcatalog_to_tape()
|
---|
1542 | {
|
---|
1543 | int i, last, res = 0;
|
---|
1544 | char *fname;
|
---|
1545 |
|
---|
1546 | log_msg(2, "I am now writing back catalog to tape");
|
---|
1547 | malloc_string(fname);
|
---|
1548 | last = g_tapecatalog->entries - 1;
|
---|
1549 | for (i = 0; i <= last; i++) {
|
---|
1550 | sprintf(fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir,
|
---|
1551 | g_tapecatalog->el[i].fname);
|
---|
1552 | if (!does_file_exist(fname)) {
|
---|
1553 | log_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
1554 | } else {
|
---|
1555 | write_header_block_to_stream(length_of_file(fname),
|
---|
1556 | "start-backcatalog-afio-or-slice",
|
---|
1557 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
1558 | log_msg(2, "Writing %s", fname);
|
---|
1559 | if (write_file_to_stream_from_file(fname)) {
|
---|
1560 | res++;
|
---|
1561 | log_msg(2, "%s failed", fname);
|
---|
1562 | }
|
---|
1563 | if (i != last) {
|
---|
1564 | write_header_block_to_stream((off_t)0,
|
---|
1565 | "stop-backcatalog-afio-or-slice",
|
---|
1566 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
1567 | }
|
---|
1568 | }
|
---|
1569 | }
|
---|
1570 | paranoid_free(fname);
|
---|
1571 | log_msg(2, "Finished writing back catalog to tape");
|
---|
1572 | return (res);
|
---|
1573 | }
|
---|
1574 |
|
---|
1575 |
|
---|
1576 |
|
---|
1577 | /**
|
---|
1578 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
1579 | * @param fname The path to all.tar.gz.
|
---|
1580 | * @return 0 for success, nonzero for failure.
|
---|
1581 | */
|
---|
1582 | int write_data_disks_to_stream(char *fname)
|
---|
1583 | {
|
---|
1584 | /*@ pointers *************************************************** */
|
---|
1585 | FILE *fin;
|
---|
1586 | char tmp[MAX_STR_LEN];
|
---|
1587 |
|
---|
1588 | /*@ long ******************************************************* */
|
---|
1589 | long m = -1;
|
---|
1590 | long templong;
|
---|
1591 |
|
---|
1592 | /*@ int ******************************************************** */
|
---|
1593 | int i, j;
|
---|
1594 |
|
---|
1595 | /*@ buffers **************************************************** */
|
---|
1596 | char tempblock[256 * 1024];
|
---|
1597 |
|
---|
1598 | /*@ end vars *************************************************** */
|
---|
1599 |
|
---|
1600 | open_evalcall_form("Writing data disks to tape");
|
---|
1601 | log_to_screen("Writing data disks to tape");
|
---|
1602 | log_it("Data disks = %s", fname);
|
---|
1603 | if (!does_file_exist(fname)) {
|
---|
1604 | sprintf(tmp, "Cannot find %s", fname);
|
---|
1605 | log_to_screen(tmp);
|
---|
1606 | return (1);
|
---|
1607 | }
|
---|
1608 | if (!(fin = fopen(fname, "r"))) {
|
---|
1609 | log_OS_error(fname);
|
---|
1610 | fatal_error("Cannot openin the data disk");
|
---|
1611 | }
|
---|
1612 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
1613 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
1614 | if (!feof(fin)) {
|
---|
1615 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
1616 | } else {
|
---|
1617 | m = 0;
|
---|
1618 | }
|
---|
1619 | for (; m < 256 * 1024; m++) {
|
---|
1620 | tempblock[m] = '\0';
|
---|
1621 | }
|
---|
1622 | g_tape_posK +=
|
---|
1623 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
1624 | }
|
---|
1625 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
1626 | {
|
---|
1627 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
1628 | update_evalcall_form((int) (templong));
|
---|
1629 | }
|
---|
1630 | }
|
---|
1631 | paranoid_fclose(fin);
|
---|
1632 | close_evalcall_form();
|
---|
1633 | return (0);
|
---|
1634 | }
|
---|
1635 |
|
---|
1636 |
|
---|
1637 |
|
---|
1638 |
|
---|
1639 | /**
|
---|
1640 | * Copy @p infile to the opened stream (CD or tape).
|
---|
1641 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
1642 | * @param infile The file to write to the stream.
|
---|
1643 | * @return 0 for success, nonzero for failure.
|
---|
1644 | */
|
---|
1645 | int write_file_to_stream_from_file(char *infile)
|
---|
1646 | {
|
---|
1647 | /*@ buffers **************************************************** */
|
---|
1648 | char tmp[MAX_STR_LEN];
|
---|
1649 | char datablock[TAPE_BLOCK_SIZE];
|
---|
1650 | char checksum[MAX_STR_LEN];
|
---|
1651 | char *infile_basename;
|
---|
1652 |
|
---|
1653 | /*@ int ******************************************************** */
|
---|
1654 | int retval = 0;
|
---|
1655 | int noof_blocks;
|
---|
1656 |
|
---|
1657 | /* unsigned int ch; */
|
---|
1658 | unsigned int crc16;
|
---|
1659 | unsigned int crctt;
|
---|
1660 |
|
---|
1661 | /*@ pointers *************************************************** */
|
---|
1662 | FILE *fin;
|
---|
1663 | char *p;
|
---|
1664 |
|
---|
1665 | /*@ long ******************************************************* */
|
---|
1666 | long bytes_to_read = 0;
|
---|
1667 | long i;
|
---|
1668 |
|
---|
1669 | off_t filesize;
|
---|
1670 |
|
---|
1671 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
1672 | int ch;
|
---|
1673 | #endif
|
---|
1674 |
|
---|
1675 | /*@ initialize ************************************************ */
|
---|
1676 | crc16 = 0;
|
---|
1677 | crctt = 0;
|
---|
1678 |
|
---|
1679 |
|
---|
1680 |
|
---|
1681 | /*@ end vars *************************************************** */
|
---|
1682 |
|
---|
1683 | infile_basename = strrchr(infile, '/');
|
---|
1684 | if (infile_basename) {
|
---|
1685 | infile_basename++;
|
---|
1686 | } else {
|
---|
1687 | infile_basename = infile;
|
---|
1688 | }
|
---|
1689 | filesize = length_of_file(infile);
|
---|
1690 | if (should_we_write_to_next_tape
|
---|
1691 | (bkpinfo->media_size[g_current_media_number], filesize)) {
|
---|
1692 | start_to_write_to_next_tape();
|
---|
1693 | write_backcatalog_to_tape();
|
---|
1694 | }
|
---|
1695 | p = strrchr(infile, '/');
|
---|
1696 | if (!p) {
|
---|
1697 | p = infile;
|
---|
1698 | } else {
|
---|
1699 | p++;
|
---|
1700 | }
|
---|
1701 | sprintf(tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
1702 | (long) filesize >> 10);
|
---|
1703 | log_it(tmp);
|
---|
1704 | write_header_block_to_stream(filesize, infile_basename,
|
---|
1705 | BLK_START_FILE);
|
---|
1706 | //go_here_to_restart_saving_of_file:
|
---|
1707 | if (!(fin = fopen(infile, "r"))) {
|
---|
1708 | log_OS_error(infile);
|
---|
1709 | return (1);
|
---|
1710 | }
|
---|
1711 | for (noof_blocks = 0; filesize > 0;
|
---|
1712 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
1713 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
1714 | bytes_to_read = (long) filesize;
|
---|
1715 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
1716 | datablock[i] = '\0';
|
---|
1717 | }
|
---|
1718 | } else {
|
---|
1719 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
1720 | }
|
---|
1721 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
1722 | g_tape_posK +=
|
---|
1723 | fwrite(datablock, 1, /*bytes_to_read */
|
---|
1724 | (size_t) TAPE_BLOCK_SIZE,
|
---|
1725 | g_tape_stream) / 1024;
|
---|
1726 | if (g_sigpipe) {
|
---|
1727 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
1728 | fclose(fin);
|
---|
1729 | g_sigpipe = FALSE;
|
---|
1730 | start_to_write_to_next_tape();
|
---|
1731 | write_backcatalog_to_tape(); // kinda-sorta recursive :)
|
---|
1732 | return (0);
|
---|
1733 | }
|
---|
1734 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
1735 | for (i = 0; i < bytes_to_read; i++) {
|
---|
1736 | ch = datablock[i];
|
---|
1737 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
1738 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
1739 | }
|
---|
1740 | #endif
|
---|
1741 | }
|
---|
1742 | paranoid_fclose(fin);
|
---|
1743 | sprintf(checksum, "%04x%04x", crc16, crctt);
|
---|
1744 | /* BERLIOS: what does it do ??? */
|
---|
1745 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
1746 | BLK_STOP_FILE);
|
---|
1747 | // log_it("File '%s' written to tape.", infile);
|
---|
1748 | return (retval);
|
---|
1749 | }
|
---|
1750 |
|
---|
1751 |
|
---|
1752 |
|
---|
1753 |
|
---|
1754 |
|
---|
1755 | /**
|
---|
1756 | * Write a header block to the opened stream (CD or tape).
|
---|
1757 | * @param length_of_incoming_file The length to store in the header block.
|
---|
1758 | * Usually matters only if this is a file-related header, in which case it should
|
---|
1759 | * be the length of the file that will follow.
|
---|
1760 | * @param filename The filename to store in the header block. Usually matters
|
---|
1761 | * only if this is a file-related header, in which case this should be the name
|
---|
1762 | * if the file that will follow.
|
---|
1763 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
1764 | * @return 0 for success, nonzero for failure.
|
---|
1765 | */
|
---|
1766 | int
|
---|
1767 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
1768 | char *filename, int control_char)
|
---|
1769 | {
|
---|
1770 | /*@ buffers **************************************************** */
|
---|
1771 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
1772 | char tmp[MAX_STR_LEN];
|
---|
1773 | char *p;
|
---|
1774 |
|
---|
1775 | /*@ int ******************************************************** */
|
---|
1776 | int i;
|
---|
1777 |
|
---|
1778 | off_t olen;
|
---|
1779 |
|
---|
1780 | /*@ end vars *************************************************** */
|
---|
1781 |
|
---|
1782 |
|
---|
1783 | olen = length_of_incoming_file;
|
---|
1784 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
1785 | if (!p) {
|
---|
1786 | p = filename;
|
---|
1787 | } else {
|
---|
1788 | p++;
|
---|
1789 | }
|
---|
1790 | if (!g_tape_stream) {
|
---|
1791 | log_to_screen
|
---|
1792 | ("You're not backing up to tape. Why write a tape header?");
|
---|
1793 | return (1);
|
---|
1794 | }
|
---|
1795 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
1796 | tempblock[i] = 0;
|
---|
1797 | }
|
---|
1798 | sprintf(tempblock + 6000 + control_char, STR_HEADER);
|
---|
1799 | tempblock[7000] = control_char;
|
---|
1800 | /* for(i=0;i<8;i++) {tempblock[7001+i]=olen&0xff; olen>>=8;} */
|
---|
1801 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
1802 | /* if (length_of_incoming_file) {memcpy(tempblock+7001,(char*)&length_of_incoming_file,sizeof(long long));} */
|
---|
1803 | strcpy(tempblock + 1000, filename);
|
---|
1804 | /* strcpy(tempblock+5555,cksum); */
|
---|
1805 | g_tape_posK +=
|
---|
1806 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
1807 | g_tape_stream) / 1024;
|
---|
1808 | sprintf(tmp, "%s (fname=%s, size=%ld K)",
|
---|
1809 | marker_to_string(control_char), p,
|
---|
1810 | (long) length_of_incoming_file >> 10);
|
---|
1811 | log_msg(6, tmp);
|
---|
1812 | /* log_tape_pos(); */
|
---|
1813 | return (0);
|
---|
1814 | }
|
---|
1815 |
|
---|
1816 |
|
---|
1817 |
|
---|
1818 |
|
---|
1819 |
|
---|
1820 |
|
---|
1821 |
|
---|
1822 |
|
---|
1823 |
|
---|
1824 |
|
---|
1825 | /**
|
---|
1826 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
1827 | * @param should_be What we were expecting.
|
---|
1828 | * @param it_is What we got.
|
---|
1829 | */
|
---|
1830 | void wrong_marker(int should_be, int it_is)
|
---|
1831 | {
|
---|
1832 | /*@ buffer ***************************************************** */
|
---|
1833 | char tmp[MAX_STR_LEN];
|
---|
1834 |
|
---|
1835 |
|
---|
1836 | /*@ end vars *************************************************** */
|
---|
1837 | sprintf(tmp, "Wrong marker! (Should be %s, ",
|
---|
1838 | marker_to_string(should_be));
|
---|
1839 | sprintf(tmp + strlen(tmp), "is actually %s)", marker_to_string(it_is));
|
---|
1840 | log_to_screen(tmp);
|
---|
1841 | }
|
---|
1842 |
|
---|
1843 | /* @} - end of streamGroup */
|
---|