1 | /* $Id: libmondo-stream.c 1176 2007-02-16 13:16:14Z bruno $
|
---|
2 |
|
---|
3 | ...tools for talking to tapes, Monitas streams, etc.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | *
|
---|
8 | * @file
|
---|
9 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
|
---|
10 | */
|
---|
11 |
|
---|
12 | #include <unistd.h>
|
---|
13 |
|
---|
14 | #include "my-stuff.h"
|
---|
15 | #include "mr_mem.h"
|
---|
16 | #include "mr_msg.h"
|
---|
17 |
|
---|
18 | #include "mondostructures.h"
|
---|
19 | #include "libmondo-devices.h"
|
---|
20 | #include "libmondo-stream.h"
|
---|
21 | #include "libmondo-string-EXT.h"
|
---|
22 | #include "libmondo-files-EXT.h"
|
---|
23 | #include "newt-specific-EXT.h"
|
---|
24 | #include "libmondo-fork-EXT.h"
|
---|
25 | #include "libmondo-tools-EXT.h"
|
---|
26 | #include "libmondo-fifo-EXT.h"
|
---|
27 |
|
---|
28 | #define EXTRA_TAPE_CHECKSUMS
|
---|
29 |
|
---|
30 | /*@unused@*/
|
---|
31 | //static char cvsid[] = "$Id: libmondo-stream.c 1176 2007-02-16 13:16:14Z bruno $";
|
---|
32 | extern bool g_sigpipe;
|
---|
33 | extern int g_tape_buffer_size_MB;
|
---|
34 |
|
---|
35 | extern char *g_getfacl;
|
---|
36 | extern char *g_getfattr;
|
---|
37 |
|
---|
38 | /**
|
---|
39 | * @addtogroup globalGroup
|
---|
40 | * @{
|
---|
41 | */
|
---|
42 | /**
|
---|
43 | * The file pointer for the opened tape/CD stream.
|
---|
44 | * Opened and closed by openin_tape(), openin_cdstream(),
|
---|
45 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
|
---|
46 | * closeout_tape(), and closeout_cdstream().
|
---|
47 | */
|
---|
48 | FILE *g_tape_stream = NULL;
|
---|
49 |
|
---|
50 |
|
---|
51 | /**
|
---|
52 | * The position (in kilobytes) where we are on the tape.
|
---|
53 | */
|
---|
54 | long long g_tape_posK = 0;
|
---|
55 |
|
---|
56 | /**
|
---|
57 | * The current media number we're using. This value is 1-based.
|
---|
58 | */
|
---|
59 | int g_current_media_number = -1;
|
---|
60 |
|
---|
61 | /**
|
---|
62 | * The tape catalog that keeps track of files written to tape.
|
---|
63 | */
|
---|
64 | struct s_tapecatalog *g_tapecatalog;
|
---|
65 |
|
---|
66 | /* @} - end of globalGroup */
|
---|
67 |
|
---|
68 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
|
---|
69 |
|
---|
70 |
|
---|
71 |
|
---|
72 |
|
---|
73 |
|
---|
74 | /**
|
---|
75 | * @addtogroup streamGroup
|
---|
76 | * @{
|
---|
77 | */
|
---|
78 | /**
|
---|
79 | * Close the global output file descriptor which Mondo has used to read
|
---|
80 | * from the CD stream.
|
---|
81 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
|
---|
82 | * @return 0 for success, nonzero for failure.
|
---|
83 | * @note This should be called by restore processes only.
|
---|
84 | */
|
---|
85 | int closein_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
86 | {
|
---|
87 | return (closein_tape(bkpinfo));
|
---|
88 | }
|
---|
89 |
|
---|
90 |
|
---|
91 | /**
|
---|
92 | * Close the global output file descriptor which Mondo has used to read
|
---|
93 | * from buffer or dd, which read from the tape.
|
---|
94 | * @param bkpinfo The backup information structure. Unused.
|
---|
95 | * @return 0 for success, nonzero for failure.
|
---|
96 | * @note This should be called by restore processes only.
|
---|
97 | * @note This function also works for cdstreams for now, but don't count on this behavior.
|
---|
98 | * @bug @p bkpinfo parameter is unused.
|
---|
99 | */
|
---|
100 | int closein_tape(struct s_bkpinfo *bkpinfo)
|
---|
101 | {
|
---|
102 | /*@ int's ******************************************************* */
|
---|
103 | int retval = 0;
|
---|
104 | int res = 0;
|
---|
105 | int ctrl_chr = '\0';
|
---|
106 |
|
---|
107 | /*@ long long's ************************************************* */
|
---|
108 | long long size;
|
---|
109 | char *blk;
|
---|
110 | int i;
|
---|
111 |
|
---|
112 | blk = (char *) mr_malloc(256 * 1024);
|
---|
113 |
|
---|
114 | log_it("closein_tape() -- entering");
|
---|
115 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
116 | retval += res;
|
---|
117 | if (ctrl_chr != BLK_END_OF_BACKUP) {
|
---|
118 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
|
---|
119 | }
|
---|
120 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
121 | retval += res;
|
---|
122 | if (ctrl_chr != BLK_END_OF_TAPE) {
|
---|
123 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
|
---|
124 | }
|
---|
125 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
|
---|
126 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
|
---|
127 | }
|
---|
128 | sleep(1);
|
---|
129 | sync();
|
---|
130 | sleep(1);
|
---|
131 | paranoid_pclose(g_tape_stream);
|
---|
132 | log_it("closein_tape() -- leaving");
|
---|
133 | if (!bkpinfo->please_dont_eject) {
|
---|
134 | eject_device(bkpinfo->media_device);
|
---|
135 | }
|
---|
136 | mr_free(blk);
|
---|
137 | mr_free(g_tapecatalog);
|
---|
138 | return (retval);
|
---|
139 | }
|
---|
140 |
|
---|
141 |
|
---|
142 |
|
---|
143 | /**
|
---|
144 | * Close the global output file descriptor which Mondo has been using to write
|
---|
145 | * to the tape device (via buffer or dd).
|
---|
146 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
147 | * @return 0 for success, nonzero for failure.
|
---|
148 | * @note This should be called by backup processes only.
|
---|
149 | */
|
---|
150 | int closeout_tape(struct s_bkpinfo *bkpinfo)
|
---|
151 | {
|
---|
152 | /*@ int's ******************************************************* */
|
---|
153 | int retval = 0;
|
---|
154 |
|
---|
155 | /*@ long long's ************************************************* */
|
---|
156 | int i = 0;
|
---|
157 | char *blk = NULL;
|
---|
158 |
|
---|
159 | blk = (char *) mr_malloc(256 * 1024);
|
---|
160 |
|
---|
161 | sleep(1);
|
---|
162 | sync();
|
---|
163 | sleep(1);
|
---|
164 | log_it("closeout_tape() -- entering");
|
---|
165 | retval +=
|
---|
166 | write_header_block_to_stream((off_t)0, "end-of-backup",
|
---|
167 | BLK_END_OF_BACKUP);
|
---|
168 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
|
---|
169 | /* write 1MB of crap */
|
---|
170 | for (i = 0; i < 256 * 1024; i++) {
|
---|
171 | blk[i] = (int) (random() & 0xFF);
|
---|
172 | }
|
---|
173 | for (i = 0; i < 4 * 8; i++) {
|
---|
174 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
|
---|
175 | if (should_we_write_to_next_tape
|
---|
176 | (bkpinfo->media_size[g_current_media_number], (off_t)256 * 1024)) {
|
---|
177 | start_to_write_to_next_tape(bkpinfo);
|
---|
178 | }
|
---|
179 | }
|
---|
180 | sleep(2);
|
---|
181 | paranoid_pclose(g_tape_stream);
|
---|
182 | log_it("closeout_tape() -- leaving");
|
---|
183 | for (i = 0; i < g_tapecatalog->entries; i++) {
|
---|
184 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
|
---|
185 | (g_tapecatalog->el[i].type ==
|
---|
186 | fileset) ? "fileset" : "bigslice",
|
---|
187 | g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux,
|
---|
188 | g_tapecatalog->el[i].tape_posK);
|
---|
189 | }
|
---|
190 | mr_free(blk);
|
---|
191 | mr_free(g_tapecatalog);
|
---|
192 | return (retval);
|
---|
193 | }
|
---|
194 |
|
---|
195 |
|
---|
196 |
|
---|
197 | bool mt_says_tape_exists(char *dev)
|
---|
198 | {
|
---|
199 | char *command;
|
---|
200 | int res;
|
---|
201 |
|
---|
202 | mr_asprintf(&command, "mt -f %s status", dev);
|
---|
203 | res = run_program_and_log_output(command, 1);
|
---|
204 | mr_free(command);
|
---|
205 | if (res) {
|
---|
206 | return (FALSE);
|
---|
207 | } else {
|
---|
208 | return (TRUE);
|
---|
209 | }
|
---|
210 | }
|
---|
211 |
|
---|
212 |
|
---|
213 |
|
---|
214 | /**
|
---|
215 | * Determine the name and size of the tape device. Tries the SCSI tape for
|
---|
216 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
|
---|
217 | * @param dev Where to put the found tape device.
|
---|
218 | * @param siz Where to put the tape size (a string like "4GB"). Should be freed by caller
|
---|
219 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
|
---|
220 | */
|
---|
221 | int find_tape_device_and_size(char *dev, char *siz)
|
---|
222 | {
|
---|
223 | char *tmp = NULL;
|
---|
224 | char *tmp1 = NULL;
|
---|
225 | char *command = NULL;
|
---|
226 | char *cdr_exe = NULL;
|
---|
227 | int res = 0;
|
---|
228 |
|
---|
229 | log_to_screen("I am looking for your tape streamer. Please wait.");
|
---|
230 | dev = NULL;
|
---|
231 | siz = NULL;
|
---|
232 | tmp = find_home_of_exe("cdrecord");
|
---|
233 | if (tmp) {
|
---|
234 | mr_asprintf(&cdr_exe, "cdrecord");
|
---|
235 | } else {
|
---|
236 | mr_asprintf(&cdr_exe, "dvdrecord");
|
---|
237 | }
|
---|
238 | mr_free(tmp);
|
---|
239 |
|
---|
240 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
|
---|
241 | cdr_exe);
|
---|
242 | tmp = call_program_and_get_last_line_of_output(command);
|
---|
243 | mr_free(command);
|
---|
244 |
|
---|
245 | if (atoi(tmp) != 1) {
|
---|
246 | log_it
|
---|
247 | ("Either too few or too many tape streamers for me to detect...");
|
---|
248 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"0");
|
---|
249 | mr_free(tmp);
|
---|
250 | mr_free(cdr_exe);
|
---|
251 | return 1;
|
---|
252 | }
|
---|
253 | mr_free(tmp);
|
---|
254 |
|
---|
255 | mr_asprintf(&command,
|
---|
256 | "%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",
|
---|
257 | cdr_exe);
|
---|
258 | tmp = call_program_and_get_last_line_of_output(command);
|
---|
259 | mr_free(command);
|
---|
260 | if (strlen(tmp) < 2) {
|
---|
261 | log_it("Could not find tape device");
|
---|
262 | mr_free(tmp);
|
---|
263 | mr_free(cdr_exe);
|
---|
264 | return 1;
|
---|
265 | }
|
---|
266 | mr_free(tmp);
|
---|
267 |
|
---|
268 | mr_asprintf(&command,
|
---|
269 | "%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",
|
---|
270 | cdr_exe);
|
---|
271 | mr_free(cdr_exe);
|
---|
272 |
|
---|
273 | tmp = call_program_and_get_last_line_of_output(command);
|
---|
274 | mr_free(command);
|
---|
275 |
|
---|
276 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"%s", tmp);
|
---|
277 | mr_free(tmp);
|
---|
278 |
|
---|
279 | if (!mt_says_tape_exists(dev)) {
|
---|
280 | mr_free(dev);
|
---|
281 |
|
---|
282 | mr_asprintf(&dev, ALT_TAPE"%s", tmp);
|
---|
283 | if (!mt_says_tape_exists(dev)) {
|
---|
284 | log_it("Cannot openin %s", dev);
|
---|
285 | mr_free(dev);
|
---|
286 |
|
---|
287 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"0");
|
---|
288 | if (!mt_says_tape_exists(dev)) {
|
---|
289 | log_it("Cannot openin %s", dev);
|
---|
290 | mr_free(dev);
|
---|
291 |
|
---|
292 | mr_asprintf(&dev, "/dev/osst0");
|
---|
293 | if (!mt_says_tape_exists(dev)) {
|
---|
294 | res++;
|
---|
295 | } else {
|
---|
296 | res = 0;
|
---|
297 | }
|
---|
298 | }
|
---|
299 | }
|
---|
300 | }
|
---|
301 |
|
---|
302 | log_it("At this point, dev = %s and res = %d", dev, res);
|
---|
303 |
|
---|
304 | tmp = call_program_and_get_last_line_of_output("\
|
---|
305 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
|
---|
306 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
|
---|
307 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'");
|
---|
308 |
|
---|
309 | if (mt_says_tape_exists(dev)) {
|
---|
310 | res = 0;
|
---|
311 | } else {
|
---|
312 | log_it("Turning %s", dev);
|
---|
313 | mr_free(tmp);
|
---|
314 | mr_asprintf(&tmp1,
|
---|
315 | (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
|
---|
316 | mr_free(dev);
|
---|
317 | mr_asprintf(&dev, "/dev/os%s", tmp1);
|
---|
318 | mr_free(tmp1);
|
---|
319 |
|
---|
320 | log_it("...into %s", dev);
|
---|
321 | if (mt_says_tape_exists(dev)) {
|
---|
322 | res = 0;
|
---|
323 | } else {
|
---|
324 | res++;
|
---|
325 | }
|
---|
326 | }
|
---|
327 |
|
---|
328 | log_it("res=%d; dev=%s", res, dev);
|
---|
329 |
|
---|
330 | if (res) {
|
---|
331 | mr_free(tmp);
|
---|
332 | return (res);
|
---|
333 | }
|
---|
334 |
|
---|
335 | if (strlen(tmp) < 2) {
|
---|
336 | log_it("Warning - size of tape unknown");
|
---|
337 | mr_free(tmp);
|
---|
338 | return (0);
|
---|
339 | } else {
|
---|
340 | siz = tmp;
|
---|
341 | return (0);
|
---|
342 | }
|
---|
343 | }
|
---|
344 |
|
---|
345 |
|
---|
346 | int read_EXAT_files_from_tape(struct s_bkpinfo *bkpinfo,
|
---|
347 | long long *ptmp_size, char *tmp_fname,
|
---|
348 | int *pctrl_chr, char *xattr_fname,
|
---|
349 | char *acl_fname)
|
---|
350 | {
|
---|
351 | int res = 0;
|
---|
352 | int retval = 0;
|
---|
353 | char *fname = (char *)&res; /* Should NOT be NULL */
|
---|
354 |
|
---|
355 | // xattr
|
---|
356 | if (g_getfattr) {
|
---|
357 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
358 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
359 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
360 | }
|
---|
361 | if (!strstr(fname, "xattr")) {
|
---|
362 | fatal_error("Wrong order, sunshine.");
|
---|
363 | }
|
---|
364 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
|
---|
365 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
366 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
367 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
368 | }
|
---|
369 | mr_msg(1, "Got xattr");
|
---|
370 | }
|
---|
371 | mr_free(fname);
|
---|
372 | fname = (char *)&res;
|
---|
373 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
|
---|
374 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
375 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
376 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
377 | }
|
---|
378 | // acl
|
---|
379 | if (g_getfacl) {
|
---|
380 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
381 | if (!strstr(fname, "acl")) {
|
---|
382 | fatal_error("Wrong order, sunshine.");
|
---|
383 | }
|
---|
384 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
385 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
386 | }
|
---|
387 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
388 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
389 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
390 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
391 | }
|
---|
392 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
393 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
394 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
395 | }
|
---|
396 | mr_msg(1, "Got acl");
|
---|
397 | }
|
---|
398 | mr_free(fname);
|
---|
399 | fname = (char *)&res;
|
---|
400 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
401 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
402 | }
|
---|
403 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
404 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
405 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
406 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
407 | }
|
---|
408 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
409 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
410 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
411 | }
|
---|
412 | // tarball itself
|
---|
413 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
414 | mr_msg(1, "now looking for afioball");
|
---|
415 | return (retval);
|
---|
416 | }
|
---|
417 |
|
---|
418 |
|
---|
419 | int write_EXAT_files_to_tape(struct s_bkpinfo *bkpinfo, char *xattr_fname,
|
---|
420 | char *acl_fname)
|
---|
421 | {
|
---|
422 | int res = 0;
|
---|
423 | if (g_getfattr) {
|
---|
424 | // xattr
|
---|
425 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
426 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
427 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
428 | BLK_START_EXAT_FILE);
|
---|
429 | write_file_to_stream_from_file(bkpinfo, xattr_fname);
|
---|
430 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
431 | }
|
---|
432 | if (g_getfacl) {
|
---|
433 | // acl
|
---|
434 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
435 | BLK_START_EXAT_FILE);
|
---|
436 | write_file_to_stream_from_file(bkpinfo, acl_fname);
|
---|
437 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
438 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
439 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
440 | }
|
---|
441 | return (res);
|
---|
442 | }
|
---|
443 |
|
---|
444 |
|
---|
445 |
|
---|
446 |
|
---|
447 | /**
|
---|
448 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
449 | * @param tapeno The tape number to insist on.
|
---|
450 | * @bug There is currently no way to actually verify that the user has actually
|
---|
451 | * inserted the right tape.
|
---|
452 | */
|
---|
453 | void insist_on_this_tape_number(int tapeno)
|
---|
454 | {
|
---|
455 | int i;
|
---|
456 | char *tmp = NULL;
|
---|
457 |
|
---|
458 | log_it("Insisting on tape #%d", tapeno);
|
---|
459 | if (g_current_media_number != tapeno) {
|
---|
460 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
461 | mr_asprintf(&tmp,
|
---|
462 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
463 | tapeno);
|
---|
464 | popup_and_OK(tmp);
|
---|
465 | mr_free(tmp);
|
---|
466 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
467 | } else {
|
---|
468 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
469 | }
|
---|
470 |
|
---|
471 | for (i = 0; i <= 100; i += 2) {
|
---|
472 | usleep(100000);
|
---|
473 | update_evalcall_form(i);
|
---|
474 | }
|
---|
475 | close_evalcall_form();
|
---|
476 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
477 | g_current_media_number = tapeno;
|
---|
478 |
|
---|
479 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
480 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
481 | }
|
---|
482 |
|
---|
483 |
|
---|
484 | /**
|
---|
485 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
486 | */
|
---|
487 | void log_tape_pos(void)
|
---|
488 | {
|
---|
489 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
490 | (long) g_tape_posK >> 10);
|
---|
491 | }
|
---|
492 |
|
---|
493 |
|
---|
494 | /**
|
---|
495 | * Add a file to a collection of recently archived filesets/slices.
|
---|
496 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
497 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
498 | * otherwise we generate a fatal_error().
|
---|
499 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
500 | * @param latest_fname The file to place in the collection.
|
---|
501 | * @return 0, always.
|
---|
502 | * @bug Return value is redundant.
|
---|
503 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
504 | */
|
---|
505 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
506 | {
|
---|
507 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
508 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
509 | int last, curr, i;
|
---|
510 | t_archtype type = other;
|
---|
511 | char *command = NULL;
|
---|
512 | char *tmpdir = NULL;
|
---|
513 | char *old_fname = NULL;
|
---|
514 |
|
---|
515 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
516 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
517 | type = fileset;
|
---|
518 | } else if (strstr(latest_fname, "slice")) {
|
---|
519 | type = biggieslice;
|
---|
520 | } else {
|
---|
521 | log_it("fname = %s", latest_fname);
|
---|
522 | fatal_error
|
---|
523 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
524 | }
|
---|
525 |
|
---|
526 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
527 | mkdir(tmpdir, 0x700);
|
---|
528 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
529 | if (run_program_and_log_output(command, 6)) {
|
---|
530 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
531 | latest_fname, tmpdir);
|
---|
532 | }
|
---|
533 | mr_free(command);
|
---|
534 |
|
---|
535 | last = g_tapecatalog->entries - 1;
|
---|
536 | if (last <= 0) {
|
---|
537 | iamhere("Too early to start deleting from collection.");
|
---|
538 | return (0);
|
---|
539 | }
|
---|
540 | final_alleged_writeK = g_tapecatalog->el[last].tape_posK;
|
---|
541 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
542 | for (curr = last; curr >= 0; curr--) {
|
---|
543 | cposK = g_tapecatalog->el[curr].tape_posK;
|
---|
544 | if (cposK < final_projected_certain_writeK) {
|
---|
545 | final_actually_certain_writeK = cposK;
|
---|
546 | break;
|
---|
547 | }
|
---|
548 | }
|
---|
549 | if (curr < 0) {
|
---|
550 | iamhere
|
---|
551 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
552 | return (0);
|
---|
553 | }
|
---|
554 | // log_it( "There are %lld KB (more than %d KB) in my backcatalog", final_alleged_writeK - final_actually_certain_writeK, bufsize_K);
|
---|
555 |
|
---|
556 | for (i = curr - 1; i >= 0 && curr - i < 10; i--) {
|
---|
557 | mr_asprintf(&old_fname, "%s/%s", tmpdir, g_tapecatalog->el[i].fname);
|
---|
558 | unlink(old_fname);
|
---|
559 | mr_free(old_fname);
|
---|
560 | }
|
---|
561 | mr_free(tmpdir);
|
---|
562 | return (0);
|
---|
563 | }
|
---|
564 |
|
---|
565 |
|
---|
566 | /**
|
---|
567 | * Open the CD stream for input.
|
---|
568 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
569 | * @return 0 for success, nonzero for failure.
|
---|
570 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
571 | */
|
---|
572 | int openin_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
573 | {
|
---|
574 | return (openin_tape(bkpinfo));
|
---|
575 | }
|
---|
576 |
|
---|
577 |
|
---|
578 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
579 | long internal_tape_block_size)
|
---|
580 | {
|
---|
581 | char *tmp;
|
---|
582 | int res;
|
---|
583 |
|
---|
584 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
585 | mr_msg(1,
|
---|
586 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
587 | return (0);
|
---|
588 | }
|
---|
589 | mr_asprintf(&tmp, "mt -f %s setblk %ld", tapedev,
|
---|
590 | internal_tape_block_size);
|
---|
591 | res = run_program_and_log_output(tmp, 3);
|
---|
592 | mr_free(tmp);
|
---|
593 | return (res);
|
---|
594 | }
|
---|
595 |
|
---|
596 |
|
---|
597 | /**
|
---|
598 | * Open the tape device for input.
|
---|
599 | * @param bkpinfo The backup information structure. Fields used:
|
---|
600 | * - @c bkpinfo->media_device
|
---|
601 | * - @c bkpinfo->tmpdir
|
---|
602 | * @return 0 for success, nonzero for failure.
|
---|
603 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
604 | */
|
---|
605 | int openin_tape(struct s_bkpinfo *bkpinfo)
|
---|
606 | {
|
---|
607 | /*@ buffer ***************************************************** */
|
---|
608 | char *datablock = NULL;
|
---|
609 | char *tmp = NULL;
|
---|
610 | char old_cwd[MAX_STR_LEN];
|
---|
611 | char *outfname = NULL;
|
---|
612 | /*@ int ******************************************************* */
|
---|
613 | int i;
|
---|
614 | int j;
|
---|
615 | int res;
|
---|
616 | long length, templong;
|
---|
617 | size_t k;
|
---|
618 | int retval = 0;
|
---|
619 | int ctrl_chr;
|
---|
620 |
|
---|
621 | /*@ long long ************************************************* */
|
---|
622 | long long size;
|
---|
623 |
|
---|
624 | /*@ pointers ************************************************** */
|
---|
625 | FILE *fout;
|
---|
626 |
|
---|
627 | /*@ end vars *************************************************** */
|
---|
628 |
|
---|
629 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
630 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
631 | g_tapecatalog->entries = 0;
|
---|
632 | g_tape_posK = 0;
|
---|
633 | if (g_tape_stream) {
|
---|
634 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
635 | return (0);
|
---|
636 | }
|
---|
637 | insist_on_this_tape_number(1);
|
---|
638 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
639 | make_hole_for_file(outfname);
|
---|
640 |
|
---|
641 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
642 | bkpinfo->internal_tape_block_size);
|
---|
643 |
|
---|
644 | log_it("Opening IN tape");
|
---|
645 | if (!
|
---|
646 | (g_tape_stream =
|
---|
647 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
648 | bkpinfo->internal_tape_block_size))) {
|
---|
649 | log_to_screen(_("Cannot openin stream device"));
|
---|
650 | return (1);
|
---|
651 | }
|
---|
652 | log_to_screen(_("Reading stream"));
|
---|
653 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
654 | /* skip data disks */
|
---|
655 | open_evalcall_form("Skipping data disks on stream");
|
---|
656 | log_to_screen(_("Skipping data disks on stream"));
|
---|
657 | if (!(fout = fopen(outfname, "w"))) {
|
---|
658 | log_OS_error(outfname);
|
---|
659 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
660 | return (-1);
|
---|
661 | }
|
---|
662 | datablock = (char *) mr_malloc(256 * 1024);
|
---|
663 | for (i = 0; i < 32; i++) {
|
---|
664 | for (j = 0; j < 4; j++) {
|
---|
665 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
666 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
667 | g_tape_stream);
|
---|
668 | }
|
---|
669 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
670 | g_tape_posK += length / 1024;
|
---|
671 | }
|
---|
672 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
673 | {
|
---|
674 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
675 | update_evalcall_form((int) (templong));
|
---|
676 | }
|
---|
677 | }
|
---|
678 | paranoid_fclose(fout);
|
---|
679 | mr_free(datablock);
|
---|
680 | /* find initial blocks */
|
---|
681 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
682 | retval += res;
|
---|
683 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
684 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
685 | }
|
---|
686 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
687 | retval += res;
|
---|
688 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
689 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
690 | }
|
---|
691 | close_evalcall_form();
|
---|
692 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
693 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
694 | chdir(bkpinfo->tmpdir);
|
---|
695 | mr_asprintf(&tmp, "tar -zxf %s tmp/mondo-restore.cfg 2> /dev/null",
|
---|
696 | outfname);
|
---|
697 | paranoid_system(tmp);
|
---|
698 | mr_free(tmp);
|
---|
699 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
700 | chdir(old_cwd);
|
---|
701 | unlink(outfname);
|
---|
702 | mr_free(outfname);
|
---|
703 | return (retval);
|
---|
704 | }
|
---|
705 |
|
---|
706 |
|
---|
707 | /**
|
---|
708 | * Start writing to a CD stream.
|
---|
709 | * @param cddev The CD device to openout via cdrecord.
|
---|
710 | * @param speed The speed to write at.
|
---|
711 | * @return 0 for success, nonzero for failure.
|
---|
712 | * @note This should be called only from backup processes.
|
---|
713 | */
|
---|
714 | int openout_cdstream(char *cddev, int speed)
|
---|
715 | {
|
---|
716 | /*@ buffers ***************************************************** */
|
---|
717 | char *command = NULL;
|
---|
718 |
|
---|
719 | /*@ end vars *************************************************** */
|
---|
720 |
|
---|
721 | /* add 'dummy' if testing */
|
---|
722 | mr_asprintf(&command,
|
---|
723 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
724 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
725 | /* initialise the catalog */
|
---|
726 | g_current_media_number = 1;
|
---|
727 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
728 | g_tapecatalog->entries = 0;
|
---|
729 | /* log stuff */
|
---|
730 | log_it("Opening OUT cdstream with the command");
|
---|
731 | log_it(command);
|
---|
732 | /* log_it("Let's see what happens, shall we?"); */
|
---|
733 | g_tape_stream = popen(command, "w");
|
---|
734 | mr_free(command);
|
---|
735 | if (g_tape_stream) {
|
---|
736 | return (0);
|
---|
737 | } else {
|
---|
738 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
739 | return (1);
|
---|
740 | }
|
---|
741 | }
|
---|
742 |
|
---|
743 |
|
---|
744 | /**
|
---|
745 | * Start writing to a tape device for the backup.
|
---|
746 | * @param tapedev The tape device to open for writing.
|
---|
747 | * @return 0 for success, nonzero for failure.
|
---|
748 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
749 | * EXISTING DATA on the tape!
|
---|
750 | */
|
---|
751 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
752 | {
|
---|
753 | g_current_media_number = 1;
|
---|
754 | if (g_tape_stream) {
|
---|
755 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
756 | return (0);
|
---|
757 | }
|
---|
758 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
759 | g_tapecatalog->entries = 0;
|
---|
760 | g_tape_posK = 0;
|
---|
761 |
|
---|
762 | set_tape_block_size_with_mt(tapedev, internal_tape_block_size);
|
---|
763 | log_it("Opening OUT tape");
|
---|
764 | if (!
|
---|
765 | (g_tape_stream =
|
---|
766 | open_device_via_buffer(tapedev, 'w', internal_tape_block_size))) {
|
---|
767 | log_to_screen(_("Cannot openin stream device"));
|
---|
768 | return (1);
|
---|
769 | }
|
---|
770 | return (0);
|
---|
771 | }
|
---|
772 |
|
---|
773 |
|
---|
774 | /**
|
---|
775 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
776 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
777 | * @param outfile The file to write to.
|
---|
778 | * @param size The size of the file in the input stream.
|
---|
779 | * @return 0 for success, nonzero for failure.
|
---|
780 | */
|
---|
781 | int
|
---|
782 | read_file_from_stream_to_file(struct s_bkpinfo *bkpinfo, char *outfile,
|
---|
783 | long long size)
|
---|
784 | {
|
---|
785 |
|
---|
786 | /*@ int ******************************************************** */
|
---|
787 | int res;
|
---|
788 |
|
---|
789 | /*@ end vars *************************************************** */
|
---|
790 |
|
---|
791 | res = read_file_from_stream_FULL(bkpinfo, outfile, NULL, size);
|
---|
792 |
|
---|
793 | return (res);
|
---|
794 | }
|
---|
795 |
|
---|
796 |
|
---|
797 | /**
|
---|
798 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
799 | * by @p fout.
|
---|
800 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
801 | * @param fout The stream to write the file to.
|
---|
802 | * @param size The size of the file in bytes.
|
---|
803 | * @return 0 for success, nonzero for failure.
|
---|
804 | */
|
---|
805 | int
|
---|
806 | read_file_from_stream_to_stream(struct s_bkpinfo *bkpinfo, FILE * fout,
|
---|
807 | long long size)
|
---|
808 | {
|
---|
809 |
|
---|
810 | /*@ int ******************************************************** */
|
---|
811 | int res;
|
---|
812 |
|
---|
813 | /*@ end vars *************************************************** */
|
---|
814 |
|
---|
815 | res = read_file_from_stream_FULL(bkpinfo, NULL, fout, size);
|
---|
816 | return (res);
|
---|
817 | }
|
---|
818 |
|
---|
819 |
|
---|
820 | /**
|
---|
821 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
822 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
823 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
824 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
825 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
826 | * @param outfname If non-NULL, write to this file.
|
---|
827 | * @param foutstream If non-NULL, write to this stream.
|
---|
828 | * @param orig_size The original length of the file in bytes.
|
---|
829 | * @return 0 for success, nonzero for failure.
|
---|
830 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
831 | */
|
---|
832 | int
|
---|
833 | read_file_from_stream_FULL(struct s_bkpinfo *bkpinfo, char *outfname,
|
---|
834 | FILE * foutstream, long long orig_size)
|
---|
835 | {
|
---|
836 | /*@ buffers ***************************************************** */
|
---|
837 | char *tmp = NULL;
|
---|
838 | char *datablock = NULL;
|
---|
839 | char *temp_fname = (char *)bkpinfo; /* Should NOT be NULL */
|
---|
840 | char *temp_cksum = (char *)bkpinfo; /* Should NOT be NULL */
|
---|
841 | char *actual_cksum = NULL;
|
---|
842 |
|
---|
843 | /*@ int ********************************************************* */
|
---|
844 | int retval = 0;
|
---|
845 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
846 | int i, ch;
|
---|
847 | #endif
|
---|
848 | int noof_blocks;
|
---|
849 | int ctrl_chr;
|
---|
850 | int res;
|
---|
851 | /*@ pointers **************************************************** */
|
---|
852 | FILE *fout;
|
---|
853 |
|
---|
854 | /*@ long ***************************************************** */
|
---|
855 | long bytes_to_write = 0;
|
---|
856 |
|
---|
857 | /*@ long long *************************************************** */
|
---|
858 | long long temp_size, size;
|
---|
859 | long bytes_read, bytes_to_read;
|
---|
860 | long long total_read_from_tape_for_this_file = 0;
|
---|
861 | long long where_I_was_before_tape_change = 0;
|
---|
862 | /*@ unsigned int ************************************************ */
|
---|
863 | unsigned int crc16;
|
---|
864 | unsigned int crctt;
|
---|
865 |
|
---|
866 | bool had_to_resync = FALSE;
|
---|
867 |
|
---|
868 | /*@ init ******************************************************* */
|
---|
869 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
870 | crc16 = 0;
|
---|
871 | crctt = 0;
|
---|
872 | size = orig_size;
|
---|
873 |
|
---|
874 | /*@ end vars *************************************************** */
|
---|
875 |
|
---|
876 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
877 | if (orig_size != temp_size && orig_size != -1) {
|
---|
878 | mr_asprintf(&tmp,
|
---|
879 | "output file's size should be %ld K but is apparently %ld K",
|
---|
880 | (long) size >> 10, (long) temp_size >> 10);
|
---|
881 | log_to_screen(tmp);
|
---|
882 | mr_free(tmp);
|
---|
883 | }
|
---|
884 | if (ctrl_chr != BLK_START_FILE) {
|
---|
885 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
886 | return (1);
|
---|
887 | }
|
---|
888 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
889 | outfname, (long) size >> 10);
|
---|
890 | log_to_screen(tmp);
|
---|
891 | mr_free(tmp);
|
---|
892 |
|
---|
893 | if (foutstream) {
|
---|
894 | fout = foutstream;
|
---|
895 | } else {
|
---|
896 | fout = fopen(outfname, "w");
|
---|
897 | }
|
---|
898 | if (!fout) {
|
---|
899 | log_OS_error(outfname);
|
---|
900 | log_to_screen(_("Cannot openout file"));
|
---|
901 | return (1);
|
---|
902 | }
|
---|
903 | total_read_from_tape_for_this_file = 0;
|
---|
904 | for (noof_blocks = 0; size > 0;
|
---|
905 | noof_blocks++, size -=
|
---|
906 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
907 | bytes_read) {
|
---|
908 | bytes_to_write =
|
---|
909 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
910 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
911 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
912 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
913 | // crctt=crc16=0;
|
---|
914 | where_I_was_before_tape_change = size;
|
---|
915 | mr_msg(4, "where_I_was_... = %lld",
|
---|
916 | where_I_was_before_tape_change);
|
---|
917 | start_to_read_from_next_tape(bkpinfo);
|
---|
918 | mr_msg(4, "Started reading from next tape.");
|
---|
919 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
920 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
921 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
922 | size -= bytes_to_write) {
|
---|
923 | bytes_read =
|
---|
924 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
925 | }
|
---|
926 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
927 | where_I_was_before_tape_change);
|
---|
928 | log_to_screen("Successfully re-sync'd tape");
|
---|
929 | had_to_resync = TRUE;
|
---|
930 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
931 | }
|
---|
932 |
|
---|
933 | (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
|
---|
934 |
|
---|
935 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
936 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
937 | ch = datablock[i];
|
---|
938 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
939 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
940 | }
|
---|
941 | #endif
|
---|
942 | }
|
---|
943 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
944 | total_read_from_tape_for_this_file);
|
---|
945 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
946 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
947 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
948 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
949 | } else {
|
---|
950 | paranoid_fclose(fout);
|
---|
951 | }
|
---|
952 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
953 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
954 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
955 | // fatal_error("Bad marker"); // return(1);
|
---|
956 | }
|
---|
957 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
958 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
959 | temp_cksum);
|
---|
960 | log_to_screen(tmp);
|
---|
961 | mr_free(tmp);
|
---|
962 |
|
---|
963 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
964 | (long) orig_size >> 10);
|
---|
965 | log_to_screen(tmp);
|
---|
966 | mr_free(tmp);
|
---|
967 | retval++;
|
---|
968 | }
|
---|
969 | mr_free(actual_cksum);
|
---|
970 | mr_free(datablock);
|
---|
971 | mr_free(temp_fname);
|
---|
972 | mr_free(temp_cksum);
|
---|
973 | return (retval);
|
---|
974 | }
|
---|
975 |
|
---|
976 |
|
---|
977 | /**
|
---|
978 | * Read a header block from the currently opened stream (CD or tape).
|
---|
979 | * This block indicates the length of the following file (if it's file-related)
|
---|
980 | * the filename (if it's file-related), and the block type.
|
---|
981 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
982 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
983 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
984 | * @return 0 for success, nonzero for failure.
|
---|
985 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
986 | */
|
---|
987 | int
|
---|
988 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
989 | int *pcontrol_char)
|
---|
990 | {
|
---|
991 |
|
---|
992 | /*@ buffers ***************************************************** */
|
---|
993 | char *tempblock;
|
---|
994 |
|
---|
995 | /*@ int ********************************************************* */
|
---|
996 | int i, retval;
|
---|
997 |
|
---|
998 | /*@ end vars *************************************************** */
|
---|
999 |
|
---|
1000 | tempblock = (char *) mr_malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
1001 |
|
---|
1002 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
1003 | tempblock[i] = 0;
|
---|
1004 | }
|
---|
1005 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
1006 | g_tape_posK +=
|
---|
1007 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
1008 | g_tape_stream) / 1024;
|
---|
1009 | }
|
---|
1010 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
1011 | if (strcmp(tempblock + 6000 + *pcontrol_char, "Mondolicious, baby")) {
|
---|
1012 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
1013 | }
|
---|
1014 | /* the caller manages whether we should allocate or not
|
---|
1015 | * by setting the value to NULL (do not allocate) or
|
---|
1016 | * something (allocate) */
|
---|
1017 | if (filename != NULL) {
|
---|
1018 | mr_asprintf(&filename, tempblock + 1000);
|
---|
1019 | }
|
---|
1020 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
1021 | log_to_screen("I can't verify an aborted backup.");
|
---|
1022 | retval = 1;
|
---|
1023 | } else {
|
---|
1024 | retval = 0;
|
---|
1025 | }
|
---|
1026 | for (i = 1000; i < 1020; i++) {
|
---|
1027 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
1028 | tempblock[i] = ' ';
|
---|
1029 | }
|
---|
1030 | }
|
---|
1031 | tempblock[i] = '\0';
|
---|
1032 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
1033 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
1034 | (long) (*plen) >> 10);
|
---|
1035 | mr_free(tempblock);
|
---|
1036 | return (retval);
|
---|
1037 | }
|
---|
1038 |
|
---|
1039 |
|
---|
1040 | /**
|
---|
1041 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
1042 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
1043 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
1044 | * we have @e all archives on some CD/tape/whatever.
|
---|
1045 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
1046 | * @param number The fileset number or biggiefile number.
|
---|
1047 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
1048 | * @param fn The original full pathname of the file we're recording.
|
---|
1049 | * @return The index of the record we just added.
|
---|
1050 | */
|
---|
1051 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
1052 | char *fn)
|
---|
1053 | {
|
---|
1054 | int last;
|
---|
1055 | char fname[MAX_TAPECAT_FNAME_LEN];
|
---|
1056 | char *p;
|
---|
1057 |
|
---|
1058 | p = strrchr(fn, '/');
|
---|
1059 | if (p) {
|
---|
1060 | p++;
|
---|
1061 | } else {
|
---|
1062 | p = fn;
|
---|
1063 | }
|
---|
1064 | strncpy(fname, p, MAX_TAPECAT_FNAME_LEN);
|
---|
1065 | fname[MAX_TAPECAT_FNAME_LEN] = '\0';
|
---|
1066 | last = g_tapecatalog->entries;
|
---|
1067 | if (last >= MAX_TAPECATALOG_ENTRIES) {
|
---|
1068 | log_it
|
---|
1069 | ("Warning - can't log #%d in tape catalog - too many entries already",
|
---|
1070 | number);
|
---|
1071 | return (-1);
|
---|
1072 | }
|
---|
1073 | g_tapecatalog->el[last].type = type;
|
---|
1074 | g_tapecatalog->el[last].number = number;
|
---|
1075 | g_tapecatalog->el[last].aux = aux;
|
---|
1076 | g_tapecatalog->el[last].tape_posK = g_tape_posK;
|
---|
1077 | strcpy(g_tapecatalog->el[last].fname, fname);
|
---|
1078 | g_tapecatalog->entries++;
|
---|
1079 | return (last); // returns the index of the record we've jsut added
|
---|
1080 | }
|
---|
1081 |
|
---|
1082 |
|
---|
1083 | /**
|
---|
1084 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
1085 | * (got SIGPIPE) or look like we will.
|
---|
1086 | * @param mediasize The size of the tape in megabytes.
|
---|
1087 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
1088 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
1089 | * autodetecting the size. Huh?
|
---|
1090 | */
|
---|
1091 |
|
---|
1092 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
1093 | bool
|
---|
1094 | should_we_write_to_next_tape(long mediasize,
|
---|
1095 | off_t length_of_incoming_file)
|
---|
1096 | {
|
---|
1097 | /*@ bool's ***************************************************** */
|
---|
1098 | bool we_need_a_new_tape = FALSE;
|
---|
1099 |
|
---|
1100 | /*@ end vars *************************************************** */
|
---|
1101 |
|
---|
1102 | if (mediasize == 0) {
|
---|
1103 | return (FALSE);
|
---|
1104 | }
|
---|
1105 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
1106 | log_it("mediasize = %ld", mediasize);
|
---|
1107 | we_need_a_new_tape = TRUE;
|
---|
1108 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
1109 | }
|
---|
1110 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
1111 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
1112 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
1113 | mediasize);
|
---|
1114 | we_need_a_new_tape = TRUE;
|
---|
1115 | }
|
---|
1116 | return (we_need_a_new_tape);
|
---|
1117 | }
|
---|
1118 |
|
---|
1119 |
|
---|
1120 | /**
|
---|
1121 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
1122 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
1123 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
1124 | * @param the_file_I_was_reading File name to look for.
|
---|
1125 | * @return 0 for success, nonzero for failure.
|
---|
1126 | */
|
---|
1127 | int skip_incoming_files_until_we_find_this_one(char
|
---|
1128 | *the_file_I_was_reading)
|
---|
1129 | {
|
---|
1130 | char *pA;
|
---|
1131 | char *pB;
|
---|
1132 | int res;
|
---|
1133 | int ctrl_chr;
|
---|
1134 | char *temp_fname = (char *)&res; /* should NOT be NULL */
|
---|
1135 | char *datablock;
|
---|
1136 | long long temp_size, size;
|
---|
1137 | long bytes_to_write;
|
---|
1138 |
|
---|
1139 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
1140 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
1141 | if (pB) {
|
---|
1142 | pB++;
|
---|
1143 | } else {
|
---|
1144 | pB = the_file_I_was_reading;
|
---|
1145 | }
|
---|
1146 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
1147 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
1148 | ctrl_chr = -1;
|
---|
1149 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
1150 | res =
|
---|
1151 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1152 | &ctrl_chr);
|
---|
1153 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
1154 | break;
|
---|
1155 | }
|
---|
1156 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
1157 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
1158 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
1159 | mr_free(temp_fname);
|
---|
1160 | temp_fname = (char *)&res;
|
---|
1161 | }
|
---|
1162 | while (ctrl_chr != BLK_START_FILE) {
|
---|
1163 | res =
|
---|
1164 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1165 | &ctrl_chr);
|
---|
1166 | if (ctrl_chr == BLK_START_FILE) {
|
---|
1167 | break;
|
---|
1168 | }
|
---|
1169 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
1170 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
1171 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
1172 | /* Do not desallocate when the while condition is met */
|
---|
1173 | if (ctrl_chr != BLK_START_FILE) {
|
---|
1174 | mr_free(temp_fname);
|
---|
1175 | temp_fname = (char *)&res;
|
---|
1176 | }
|
---|
1177 | }
|
---|
1178 | pA = strrchr(temp_fname, '/');
|
---|
1179 | if (pA) {
|
---|
1180 | pA++;
|
---|
1181 | } else {
|
---|
1182 | pA = temp_fname;
|
---|
1183 | }
|
---|
1184 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
1185 | if (pB) {
|
---|
1186 | pB++;
|
---|
1187 | } else {
|
---|
1188 | pB = the_file_I_was_reading;
|
---|
1189 | }
|
---|
1190 | while (strcmp(pA, pB)) {
|
---|
1191 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
1192 | the_file_I_was_reading);
|
---|
1193 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
1194 | bytes_to_write =
|
---|
1195 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
1196 | // FIXME - needs error-checking and -catching
|
---|
1197 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
1198 | }
|
---|
1199 |
|
---|
1200 | mr_free(temp_fname);
|
---|
1201 | temp_fname = (char *)&res;
|
---|
1202 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
1203 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
1204 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
1205 | }
|
---|
1206 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
1207 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
1208 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
1209 | }
|
---|
1210 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
1211 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
1212 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
1213 | }
|
---|
1214 | res =
|
---|
1215 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
1216 | &ctrl_chr);
|
---|
1217 | if (ctrl_chr != BLK_START_FILE) {
|
---|
1218 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
1219 | }
|
---|
1220 | pA = strrchr(temp_fname, '/');
|
---|
1221 | if (pA) {
|
---|
1222 | pA++;
|
---|
1223 | } else {
|
---|
1224 | pA = temp_fname;
|
---|
1225 | }
|
---|
1226 | /* BERLIOS: useless ?
|
---|
1227 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
1228 | if (pB) {
|
---|
1229 | pB++;
|
---|
1230 | } else {
|
---|
1231 | pB = the_file_I_was_reading;
|
---|
1232 | }
|
---|
1233 | */
|
---|
1234 | }
|
---|
1235 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
1236 | the_file_I_was_reading);
|
---|
1237 | mr_free(temp_fname);
|
---|
1238 | mr_free(datablock);
|
---|
1239 | return (0);
|
---|
1240 | }
|
---|
1241 |
|
---|
1242 |
|
---|
1243 | /**
|
---|
1244 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
1245 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
1246 | * @return 0 for success, nonzero for failure.
|
---|
1247 | */
|
---|
1248 | int start_to_read_from_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
1249 | {
|
---|
1250 | /*@ int ********************************************************* */
|
---|
1251 | int res = 0;
|
---|
1252 | int ctrlchr;
|
---|
1253 | long long temp_size;
|
---|
1254 | /*@ end vars *************************************************** */
|
---|
1255 |
|
---|
1256 | paranoid_pclose(g_tape_stream);
|
---|
1257 | sync();
|
---|
1258 | sync();
|
---|
1259 | sync();
|
---|
1260 | log_it("Next tape requested.");
|
---|
1261 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
1262 | log_it("Opening IN the next tape");
|
---|
1263 | if (!
|
---|
1264 | (g_tape_stream =
|
---|
1265 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
1266 | bkpinfo->internal_tape_block_size))) {
|
---|
1267 | log_to_screen(_("Cannot openin stream device"));
|
---|
1268 | return (1);
|
---|
1269 | }
|
---|
1270 | g_tape_posK = 0;
|
---|
1271 | g_sigpipe = FALSE;
|
---|
1272 | res += read_header_block_from_stream(&temp_size, NULL, &ctrlchr); /* just in case */
|
---|
1273 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
1274 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
1275 | }
|
---|
1276 | res += read_header_block_from_stream(&temp_size, NULL, &ctrlchr); /* just in case */
|
---|
1277 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
1278 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
1279 | } else {
|
---|
1280 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
1281 | }
|
---|
1282 | return (res);
|
---|
1283 | }
|
---|
1284 |
|
---|
1285 |
|
---|
1286 | /**
|
---|
1287 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
1288 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
1289 | * @return 0 for success, nonzero for failure.
|
---|
1290 | */
|
---|
1291 | int start_to_write_to_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
1292 | {
|
---|
1293 | int res = 0;
|
---|
1294 | char *command = NULL;
|
---|
1295 |
|
---|
1296 | paranoid_pclose(g_tape_stream);
|
---|
1297 | sync();
|
---|
1298 | sync();
|
---|
1299 | sync();
|
---|
1300 | log_it("New tape requested.");
|
---|
1301 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
1302 | if (g_current_media_number > MAX_NOOF_MEDIA) {
|
---|
1303 | res++;
|
---|
1304 | log_to_screen(_("Too many tapes. Man, you need to use nfs!"));
|
---|
1305 | }
|
---|
1306 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
1307 | mr_asprintf(&command,
|
---|
1308 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
1309 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
1310 | MONDO_LOGFILE);
|
---|
1311 | log_it("Opening OUT to next CD with the command");
|
---|
1312 | log_it(command);
|
---|
1313 | log_it("Let's see what happens, shall we?");
|
---|
1314 | g_tape_stream = popen(command, "w");
|
---|
1315 | mr_free(command);
|
---|
1316 | if (!g_tape_stream) {
|
---|
1317 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
1318 | return (1);
|
---|
1319 | }
|
---|
1320 | } else {
|
---|
1321 | log_it("Opening OUT to next tape");
|
---|
1322 | if (!
|
---|
1323 | (g_tape_stream =
|
---|
1324 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
1325 | bkpinfo->internal_tape_block_size))) {
|
---|
1326 | log_to_screen(_("Cannot openin stream device"));
|
---|
1327 | return (1);
|
---|
1328 | }
|
---|
1329 | }
|
---|
1330 | g_tape_posK = 0;
|
---|
1331 | g_sigpipe = FALSE;
|
---|
1332 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
1333 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
1334 | return (res);
|
---|
1335 | }
|
---|
1336 |
|
---|
1337 |
|
---|
1338 | /**
|
---|
1339 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
1340 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
1341 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
1342 | * buffer. That means that Mondo thinks they have been written, but
|
---|
1343 | * the external binary @c buffer has not actually written them. So to
|
---|
1344 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
1345 | * the old one. This insures that all archives will be on at least
|
---|
1346 | * one tape. Sounds inelegant, but it works.
|
---|
1347 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
1348 | * @return 0 for success, nonzero for failure.
|
---|
1349 | */
|
---|
1350 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo)
|
---|
1351 | {
|
---|
1352 | int i, last, res = 0;
|
---|
1353 | char *fname = NULL;
|
---|
1354 |
|
---|
1355 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
1356 | last = g_tapecatalog->entries - 1;
|
---|
1357 | for (i = 0; i <= last; i++) {
|
---|
1358 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir,
|
---|
1359 | g_tapecatalog->el[i].fname);
|
---|
1360 | if (!does_file_exist(fname)) {
|
---|
1361 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
1362 | } else {
|
---|
1363 | write_header_block_to_stream(length_of_file(fname),
|
---|
1364 | "start-backcatalog-afio-or-slice",
|
---|
1365 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
1366 | mr_msg(2, "Writing %s", fname);
|
---|
1367 | if (write_file_to_stream_from_file(bkpinfo, fname)) {
|
---|
1368 | res++;
|
---|
1369 | mr_msg(2, "%s failed", fname);
|
---|
1370 | }
|
---|
1371 | if (i != last) {
|
---|
1372 | write_header_block_to_stream((off_t)0,
|
---|
1373 | "stop-backcatalog-afio-or-slice",
|
---|
1374 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
1375 | }
|
---|
1376 | }
|
---|
1377 | mr_free(fname);
|
---|
1378 | }
|
---|
1379 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
1380 | return (res);
|
---|
1381 | }
|
---|
1382 |
|
---|
1383 |
|
---|
1384 | /**
|
---|
1385 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
1386 | * @param fname The path to all.tar.gz.
|
---|
1387 | * @return 0 for success, nonzero for failure.
|
---|
1388 | */
|
---|
1389 | int write_data_disks_to_stream(char *fname)
|
---|
1390 | {
|
---|
1391 | /*@ pointers *************************************************** */
|
---|
1392 | FILE *fin = NULL;
|
---|
1393 | char *tmp = NULL;
|
---|
1394 |
|
---|
1395 | /*@ long ******************************************************* */
|
---|
1396 | long m = -1;
|
---|
1397 | long templong;
|
---|
1398 |
|
---|
1399 | /*@ int ******************************************************** */
|
---|
1400 | int i, j;
|
---|
1401 |
|
---|
1402 | /*@ buffers **************************************************** */
|
---|
1403 | char tempblock[256 * 1024];
|
---|
1404 |
|
---|
1405 | /*@ end vars *************************************************** */
|
---|
1406 |
|
---|
1407 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
1408 | log_to_screen(_("Writing data disks to tape"));
|
---|
1409 | log_it("Data disks = %s", fname);
|
---|
1410 | if (!does_file_exist(fname)) {
|
---|
1411 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
1412 | log_to_screen(tmp);
|
---|
1413 | mr_free(tmp);
|
---|
1414 | return (1);
|
---|
1415 | }
|
---|
1416 | if (!(fin = fopen(fname, "r"))) {
|
---|
1417 | log_OS_error(fname);
|
---|
1418 | fatal_error("Cannot openin the data disk");
|
---|
1419 | }
|
---|
1420 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
1421 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
1422 | if (!feof(fin)) {
|
---|
1423 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
1424 | } else {
|
---|
1425 | m = 0;
|
---|
1426 | }
|
---|
1427 | for (; m < 256 * 1024; m++) {
|
---|
1428 | tempblock[m] = '\0';
|
---|
1429 | }
|
---|
1430 | g_tape_posK +=
|
---|
1431 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
1432 | }
|
---|
1433 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
1434 | {
|
---|
1435 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
1436 | update_evalcall_form((int) (templong));
|
---|
1437 | }
|
---|
1438 | }
|
---|
1439 | paranoid_fclose(fin);
|
---|
1440 | close_evalcall_form();
|
---|
1441 | return (0);
|
---|
1442 | }
|
---|
1443 |
|
---|
1444 |
|
---|
1445 | /**
|
---|
1446 | * Copy @p infile to the opened stream (CD or tape).
|
---|
1447 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
1448 | * @param infile The file to write to the stream.
|
---|
1449 | * @return 0 for success, nonzero for failure.
|
---|
1450 | */
|
---|
1451 | int write_file_to_stream_from_file(struct s_bkpinfo *bkpinfo, char *infile)
|
---|
1452 | {
|
---|
1453 | /*@ buffers **************************************************** */
|
---|
1454 | char *tmp = NULL;
|
---|
1455 | char datablock[TAPE_BLOCK_SIZE];
|
---|
1456 | char *checksum = NULL;
|
---|
1457 | char *infile_basename = NULL;
|
---|
1458 |
|
---|
1459 | /*@ int ******************************************************** */
|
---|
1460 | int retval = 0;
|
---|
1461 | int noof_blocks;
|
---|
1462 |
|
---|
1463 | /* unsigned int ch; */
|
---|
1464 | unsigned int crc16;
|
---|
1465 | unsigned int crctt;
|
---|
1466 |
|
---|
1467 | /*@ pointers *************************************************** */
|
---|
1468 | FILE *fin;
|
---|
1469 | char *p;
|
---|
1470 |
|
---|
1471 | /*@ long ******************************************************* */
|
---|
1472 | long bytes_to_read = 0;
|
---|
1473 | long i;
|
---|
1474 |
|
---|
1475 | off_t filesize;
|
---|
1476 |
|
---|
1477 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
1478 | int ch;
|
---|
1479 | #endif
|
---|
1480 |
|
---|
1481 | /*@ initialize ************************************************ */
|
---|
1482 | crc16 = 0;
|
---|
1483 | crctt = 0;
|
---|
1484 |
|
---|
1485 | /*@ end vars *************************************************** */
|
---|
1486 |
|
---|
1487 | infile_basename = strrchr(infile, '/');
|
---|
1488 | if (infile_basename) {
|
---|
1489 | infile_basename++;
|
---|
1490 | } else {
|
---|
1491 | infile_basename = infile;
|
---|
1492 | }
|
---|
1493 | filesize = length_of_file(infile);
|
---|
1494 | if (should_we_write_to_next_tape
|
---|
1495 | (bkpinfo->media_size[g_current_media_number], filesize)) {
|
---|
1496 | start_to_write_to_next_tape(bkpinfo);
|
---|
1497 | write_backcatalog_to_tape(bkpinfo);
|
---|
1498 | }
|
---|
1499 | p = strrchr(infile, '/');
|
---|
1500 | if (!p) {
|
---|
1501 | p = infile;
|
---|
1502 | } else {
|
---|
1503 | p++;
|
---|
1504 | }
|
---|
1505 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
1506 | (long) filesize >> 10);
|
---|
1507 | log_it(tmp);
|
---|
1508 | mr_free(tmp);
|
---|
1509 |
|
---|
1510 | write_header_block_to_stream(filesize, infile_basename,
|
---|
1511 | BLK_START_FILE);
|
---|
1512 | //go_here_to_restart_saving_of_file:
|
---|
1513 | if (!(fin = fopen(infile, "r"))) {
|
---|
1514 | log_OS_error(infile);
|
---|
1515 | return (1);
|
---|
1516 | }
|
---|
1517 | for (noof_blocks = 0; filesize > 0;
|
---|
1518 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
1519 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
1520 | bytes_to_read = (long) filesize;
|
---|
1521 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
1522 | datablock[i] = '\0';
|
---|
1523 | }
|
---|
1524 | } else {
|
---|
1525 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
1526 | }
|
---|
1527 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
1528 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
1529 | (size_t) TAPE_BLOCK_SIZE,
|
---|
1530 | g_tape_stream) / 1024;
|
---|
1531 | if (g_sigpipe) {
|
---|
1532 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
1533 | fclose(fin);
|
---|
1534 | g_sigpipe = FALSE;
|
---|
1535 | start_to_write_to_next_tape(bkpinfo);
|
---|
1536 | write_backcatalog_to_tape(bkpinfo); // kinda-sorta recursive :)
|
---|
1537 | return (0);
|
---|
1538 | }
|
---|
1539 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
1540 | for (i = 0; i < bytes_to_read; i++) {
|
---|
1541 | ch = datablock[i];
|
---|
1542 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
1543 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
1544 | }
|
---|
1545 | #endif
|
---|
1546 | }
|
---|
1547 | paranoid_fclose(fin);
|
---|
1548 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
1549 | /* BERLIOS: what does it do ??? */
|
---|
1550 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
1551 | BLK_STOP_FILE);
|
---|
1552 | mr_free(checksum);
|
---|
1553 | // log_it("File '%s' written to tape.", infile);
|
---|
1554 | return (retval);
|
---|
1555 | }
|
---|
1556 |
|
---|
1557 |
|
---|
1558 | /**
|
---|
1559 | * Write a header block to the opened stream (CD or tape).
|
---|
1560 | * @param length_of_incoming_file The length to store in the header block.
|
---|
1561 | * Usually matters only if this is a file-related header, in which case it should
|
---|
1562 | * be the length of the file that will follow.
|
---|
1563 | * @param filename The filename to store in the header block. Usually matters
|
---|
1564 | * only if this is a file-related header, in which case this should be the name
|
---|
1565 | * if the file that will follow.
|
---|
1566 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
1567 | * @return 0 for success, nonzero for failure.
|
---|
1568 | */
|
---|
1569 | int
|
---|
1570 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
1571 | char *filename, int control_char)
|
---|
1572 | {
|
---|
1573 | /*@ buffers **************************************************** */
|
---|
1574 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
1575 | char *p;
|
---|
1576 |
|
---|
1577 | /*@ int ******************************************************** */
|
---|
1578 | int i;
|
---|
1579 |
|
---|
1580 | off_t olen;
|
---|
1581 |
|
---|
1582 | /*@ end vars *************************************************** */
|
---|
1583 |
|
---|
1584 |
|
---|
1585 | olen = length_of_incoming_file;
|
---|
1586 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
1587 | if (!p) {
|
---|
1588 | p = filename;
|
---|
1589 | } else {
|
---|
1590 | p++;
|
---|
1591 | }
|
---|
1592 | if (!g_tape_stream) {
|
---|
1593 | log_to_screen
|
---|
1594 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
1595 | return (1);
|
---|
1596 | }
|
---|
1597 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
1598 | tempblock[i] = 0;
|
---|
1599 | }
|
---|
1600 | sprintf(tempblock + 6000 + control_char, "Mondolicious, baby");
|
---|
1601 | tempblock[7000] = control_char;
|
---|
1602 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
1603 | strcpy(tempblock + 1000, filename);
|
---|
1604 | g_tape_posK +=
|
---|
1605 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
1606 | g_tape_stream) / 1024;
|
---|
1607 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
1608 | marker_to_string(control_char), p,
|
---|
1609 | (long) length_of_incoming_file >> 10);
|
---|
1610 | return (0);
|
---|
1611 | }
|
---|
1612 |
|
---|
1613 |
|
---|
1614 | /**
|
---|
1615 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
1616 | * @param should_be What we were expecting.
|
---|
1617 | * @param it_is What we got.
|
---|
1618 | */
|
---|
1619 | void wrong_marker(int should_be, int it_is)
|
---|
1620 | {
|
---|
1621 | /*@ buffer ***************************************************** */
|
---|
1622 | char *tmp = NULL;
|
---|
1623 |
|
---|
1624 |
|
---|
1625 | /*@ end vars *************************************************** */
|
---|
1626 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
1627 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
1628 | log_to_screen(tmp);
|
---|
1629 | mr_free(tmp);
|
---|
1630 | }
|
---|
1631 |
|
---|
1632 | /* @} - end of streamGroup */
|
---|