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805e021f CE |
1 | /* |
2 | * Copyright 2000, International Business Machines Corporation and others. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * This software has been released under the terms of the IBM Public | |
6 | * License. For details, see the LICENSE file in the top-level source | |
7 | * directory or online at http://www.openafs.org/dl/license10.html | |
8 | */ | |
9 | ||
10 | #include <afsconfig.h> | |
11 | #include <afs/param.h> | |
12 | #include <afs/stds.h> | |
13 | ||
14 | #include <roken.h> | |
15 | ||
16 | #include <afs/budb_client.h> | |
17 | #include <afs/cmd.h> | |
18 | #include <afs/com_err.h> | |
19 | #include <afs/bubasics.h> | |
20 | ||
21 | #include "bc.h" | |
22 | #include "error_macros.h" | |
23 | #include "bucoord_internal.h" | |
24 | #include "bucoord_prototypes.h" | |
25 | ||
26 | /* code to manage volumesets | |
27 | * specific to the ubik database implementation | |
28 | */ | |
29 | ||
30 | extern struct bc_config *bc_globalConfig; | |
31 | extern struct udbHandleS udbHandle; | |
32 | extern char *whoami; | |
33 | ||
34 | static int ListVolSet(struct bc_volumeSet *aset); | |
35 | ||
36 | /* ------------------------------------ | |
37 | * command level routines | |
38 | * ------------------------------------ | |
39 | */ | |
40 | ||
41 | ||
42 | /* bc_AddVolEntryCmd | |
43 | * add a volume (or volume expression) to a volume set | |
44 | * params: | |
45 | * parm 0 is vol set name. | |
46 | * parm 1 is server name | |
47 | * parm 2 is partition name | |
48 | * parm 3 is volume regexp | |
49 | */ | |
50 | ||
51 | int | |
52 | bc_AddVolEntryCmd(struct cmd_syndesc *as, void *arock) | |
53 | { | |
54 | int code; | |
55 | char *volSetName, *serverName, *partitionName, *volRegExp; | |
56 | udbClientTextP ctPtr; | |
57 | struct bc_volumeSet *tset; | |
58 | ||
59 | volSetName = as->parms[0].items->data; | |
60 | serverName = as->parms[1].items->data; | |
61 | partitionName = as->parms[2].items->data; | |
62 | volRegExp = as->parms[3].items->data; | |
63 | ||
64 | code = bc_UpdateVolumeSet(); | |
65 | if (code) { | |
66 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
67 | return (code); | |
68 | } | |
69 | ||
70 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
71 | ||
72 | tset = bc_FindVolumeSet(bc_globalConfig, volSetName); | |
73 | if (!tset) { | |
74 | afs_com_err(whoami, code, "; Volume entry not added"); | |
75 | ERROR(code); | |
76 | } | |
77 | ||
78 | if (!(tset->flags & VSFLAG_TEMPORARY)) { | |
79 | code = bc_LockText(ctPtr); | |
80 | if (code) | |
81 | ERROR(code); | |
82 | } | |
83 | ||
84 | code = bc_UpdateVolumeSet(); | |
85 | if (code) { | |
86 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
87 | return (code); | |
88 | } | |
89 | ||
90 | code = | |
91 | bc_AddVolumeItem(bc_globalConfig, volSetName, serverName, | |
92 | partitionName, volRegExp); | |
93 | if (code) { | |
94 | afs_com_err(whoami, code, "; Volume entry not added"); | |
95 | ERROR(code); | |
96 | } | |
97 | ||
98 | if (!(tset->flags & VSFLAG_TEMPORARY)) { | |
99 | code = bc_SaveVolumeSet(); | |
100 | if (code) { | |
101 | afs_com_err(whoami, code, "Cannot save volume set file"); | |
102 | afs_com_err(whoami, 0, | |
103 | "Changes are temporary - for this session only"); | |
104 | } | |
105 | } | |
106 | ||
107 | error_exit: | |
108 | if (ctPtr->lockHandle) | |
109 | bc_UnlockText(ctPtr); | |
110 | return (code); | |
111 | } | |
112 | ||
113 | ||
114 | ||
115 | /* bc_AddVolSetCmd | |
116 | * create a new volume set, writing out the new volumeset | |
117 | * file in a safe manner | |
118 | * params: | |
119 | * name of new volume set | |
120 | */ | |
121 | ||
122 | int | |
123 | bc_AddVolSetCmd(struct cmd_syndesc *as, void *arock) | |
124 | { | |
125 | /* parm 0 is vol set name */ | |
126 | int code; | |
127 | struct cmd_item *ti; | |
128 | udbClientTextP ctPtr; | |
129 | afs_int32 flags; | |
130 | ||
131 | /* lock schedules and check validity */ | |
132 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
133 | ||
134 | flags = (as->parms[1].items ? VSFLAG_TEMPORARY : 0); | |
135 | ||
136 | /* Don't lock if adding a temporary volumeset */ | |
137 | if (!(flags & VSFLAG_TEMPORARY)) { | |
138 | code = bc_LockText(ctPtr); | |
139 | if (code) | |
140 | ERROR(code); | |
141 | } | |
142 | ||
143 | code = bc_UpdateVolumeSet(); | |
144 | if (code) { | |
145 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
146 | return (code); | |
147 | } | |
148 | ||
149 | /* validate size of volumeset name */ | |
150 | code = | |
151 | bc_CreateVolumeSet(bc_globalConfig, (ti = as->parms[0].items)->data, | |
152 | flags); | |
153 | if (code) { | |
154 | if (code == -1) | |
155 | afs_com_err(whoami, 0, "Volume set '%s' already exists", ti->data); | |
156 | else | |
157 | afs_com_err(whoami, 0, "Unknown problem"); | |
158 | } else if (!(flags & VSFLAG_TEMPORARY)) { | |
159 | code = bc_SaveVolumeSet(); | |
160 | if (code) { | |
161 | afs_com_err(whoami, code, "Cannot save new volume set file"); | |
162 | afs_com_err(whoami, 0, | |
163 | "Changes are temporary - for this session only"); | |
164 | } | |
165 | } | |
166 | ||
167 | error_exit: | |
168 | if (ctPtr->lockHandle != 0) | |
169 | bc_UnlockText(ctPtr); | |
170 | return (code); | |
171 | } | |
172 | ||
173 | ||
174 | /* bc_DeleteVolEntryCmd | |
175 | * delete a volume specification from a volume set | |
176 | * params: | |
177 | * parm 0 is vol set name | |
178 | * parm 1 is entry # (integer, 1 based) | |
179 | */ | |
180 | ||
181 | int | |
182 | bc_DeleteVolEntryCmd(struct cmd_syndesc *as, void *arock) | |
183 | { | |
184 | int code; | |
185 | afs_int32 entry; | |
186 | char *vsname; | |
187 | udbClientTextP ctPtr; | |
188 | struct bc_volumeSet *tset; | |
189 | ||
190 | vsname = as->parms[0].items->data; | |
191 | ||
192 | code = bc_UpdateVolumeSet(); | |
193 | if (code) { | |
194 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
195 | return (code); | |
196 | } | |
197 | ||
198 | /* lock schedules and check validity */ | |
199 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
200 | ||
201 | tset = bc_FindVolumeSet(bc_globalConfig, vsname); | |
202 | if (!tset) { | |
203 | afs_com_err(whoami, 0, "No such volume set as '%s'", vsname); | |
204 | ERROR(code); | |
205 | } | |
206 | ||
207 | if (!(tset->flags & VSFLAG_TEMPORARY)) { | |
208 | code = bc_LockText(ctPtr); | |
209 | if (code) | |
210 | ERROR(code); | |
211 | } | |
212 | ||
213 | code = bc_UpdateVolumeSet(); | |
214 | if (code) { | |
215 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
216 | return (code); | |
217 | } | |
218 | ||
219 | entry = bc_SafeATOI(as->parms[1].items->data); | |
220 | if (entry < 0) { | |
221 | afs_com_err(whoami, 0, "Can't parse entry number '%s' as decimal integer", | |
222 | as->parms[1].items->data); | |
223 | ERROR(BC_BADARG); | |
224 | } | |
225 | ||
226 | code = bc_DeleteVolumeItem(bc_globalConfig, vsname, entry); | |
227 | if (code) { | |
228 | if (code == -1) { | |
229 | afs_com_err(whoami, 0, "No such volume set as '%s'", vsname); | |
230 | } else if (code == -2) { | |
231 | afs_com_err(whoami, 0, | |
232 | "There aren't %d volume items for this volume set", | |
233 | entry); | |
234 | afs_com_err(whoami, 0, | |
235 | "Use the 'listvolsets' command to examine the volume set"); | |
236 | } | |
237 | ERROR(code); | |
238 | } | |
239 | ||
240 | if (!(tset->flags & VSFLAG_TEMPORARY)) { | |
241 | code = bc_SaveVolumeSet(); | |
242 | if (code == 0) { | |
243 | printf("backup: deleted volume entry %d from volume set %s\n", | |
244 | entry, vsname); | |
245 | } else { | |
246 | afs_com_err(whoami, code, "Cannot save volume set file"); | |
247 | afs_com_err(whoami, 0, | |
248 | "Deletion is temporary - for this session only"); | |
249 | } | |
250 | } | |
251 | ||
252 | error_exit: | |
253 | if (ctPtr->lockHandle != 0) | |
254 | bc_UnlockText(ctPtr); | |
255 | return (code); | |
256 | } | |
257 | ||
258 | ||
259 | ||
260 | ||
261 | /* bc_DeleteVolSetCmd | |
262 | * delete a volume set, writing out a new configuration file when | |
263 | * completed | |
264 | * params: | |
265 | * name of volumeset to delete | |
266 | */ | |
267 | ||
268 | int | |
269 | bc_DeleteVolSetCmd(struct cmd_syndesc *as, void *arock) | |
270 | { | |
271 | /* parm 0 is vol set name */ | |
272 | int code; | |
273 | struct cmd_item *ti; | |
274 | udbClientTextP ctPtr; | |
275 | afs_int32 c; | |
276 | afs_int32 flags, tosave = 0; | |
277 | ||
278 | /* lock schedules and check validity */ | |
279 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
280 | ||
281 | code = bc_LockText(ctPtr); | |
282 | if (code) | |
283 | ERROR(code); | |
284 | ||
285 | code = bc_UpdateVolumeSet(); | |
286 | if (code) { | |
287 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
288 | return (code); | |
289 | } | |
290 | ||
291 | for (ti = as->parms[0].items; ti; ti = ti->next) { | |
292 | code = bc_DeleteVolumeSet(bc_globalConfig, ti->data, &flags); | |
293 | if (code) { | |
294 | if (code == -1) | |
295 | afs_com_err(whoami, 0, "Can't find volume set '%s'", ti->data); | |
296 | else | |
297 | afs_com_err(whoami, code, | |
298 | "; Unknown problem deleting volume set '%s'", | |
299 | ti->data); | |
300 | } else { | |
301 | if (!(flags & VSFLAG_TEMPORARY)) | |
302 | tosave = 1; | |
303 | printf("backup: deleted volume set '%s'\n", ti->data); | |
304 | } | |
305 | } | |
306 | ||
307 | /* now write out the file */ | |
308 | if (tosave) { | |
309 | c = bc_SaveVolumeSet(); | |
310 | if (c) { | |
311 | if (!code) | |
312 | code = c; | |
313 | afs_com_err(whoami, c, "Cannot save updated volume set file"); | |
314 | afs_com_err(whoami, 0, "Deletion effective for this session only"); | |
315 | } | |
316 | ||
317 | } | |
318 | ||
319 | error_exit: | |
320 | if (ctPtr->lockHandle) | |
321 | bc_UnlockText(ctPtr); | |
322 | return (code); | |
323 | } | |
324 | ||
325 | ||
326 | static int | |
327 | ListVolSet(struct bc_volumeSet *aset) | |
328 | { | |
329 | struct bc_volumeEntry *tentry; | |
330 | int i; | |
331 | ||
332 | printf("Volume set %s", aset->name); | |
333 | if (aset->flags & VSFLAG_TEMPORARY) | |
334 | printf(" (temporary)"); | |
335 | printf(":\n"); | |
336 | i = 1; | |
337 | for (tentry = aset->ventries; tentry; tentry = tentry->next, i++) { | |
338 | printf(" Entry %3d: server %s, partition %s, volumes: %s\n", i, | |
339 | tentry->serverName, tentry->partname, tentry->name); | |
340 | } | |
341 | return 0; | |
342 | } | |
343 | ||
344 | /* bc_ListVolSetCmd | |
345 | * list out all the information (?) about a volumeset or about all | |
346 | * volumesets | |
347 | * entry: | |
348 | * optional parameter specifies a volumeset name | |
349 | */ | |
350 | ||
351 | int | |
352 | bc_ListVolSetCmd(struct cmd_syndesc *as, void *arock) | |
353 | { | |
354 | /* parm 0 is optional volume set to display */ | |
355 | struct bc_volumeSet *tset; | |
356 | struct cmd_item *ti; | |
357 | int code = 0; | |
358 | ||
359 | code = bc_UpdateVolumeSet(); | |
360 | if (code) { | |
361 | afs_com_err(whoami, code, "; Can't retrieve volume sets"); | |
362 | return (code); | |
363 | } | |
364 | ||
365 | /* figure out volume set to list */ | |
366 | if ((ti = as->parms[0].items)) { | |
367 | /* for each volume set in the command item list */ | |
368 | for (; ti; ti = ti->next) { | |
369 | tset = bc_FindVolumeSet(bc_globalConfig, ti->data); | |
370 | if (tset) { | |
371 | ListVolSet(tset); | |
372 | printf("\n"); | |
373 | } else { | |
374 | afs_com_err(whoami, 0, "Can't find volume set '%s'", ti->data); | |
375 | code = 1; | |
376 | } | |
377 | } | |
378 | } else { | |
379 | /* no command parameters specified, show entire list */ | |
380 | for (tset = bc_globalConfig->vset; tset; tset = tset->next) { | |
381 | ListVolSet(tset); | |
382 | printf("\n"); | |
383 | } | |
384 | } | |
385 | ||
386 | return code; | |
387 | } | |
388 | ||
389 | ||
390 | ||
391 | /* ------------------------------------ | |
392 | * support routines | |
393 | * ------------------------------------ | |
394 | */ | |
395 | ||
396 | int | |
397 | bc_ClearVolumeSets(void) | |
398 | { | |
399 | struct bc_volumeSet *vsPtr, *vsNextPtr, **vsPrev; | |
400 | ||
401 | extern struct bc_config *bc_globalConfig; | |
402 | ||
403 | vsPrev = &(bc_globalConfig->vset); | |
404 | for (vsPtr = bc_globalConfig->vset; vsPtr; vsPtr = vsNextPtr) { | |
405 | vsNextPtr = vsPtr->next; | |
406 | ||
407 | if (vsPtr->flags & VSFLAG_TEMPORARY) { /* Skip temporary volumeSet */ | |
408 | vsPrev = &(vsPtr->next); | |
409 | continue; | |
410 | } | |
411 | ||
412 | *vsPrev = vsPtr->next; /* Remove volumeSet from the chain */ | |
413 | FreeVolumeSet(vsPtr); | |
414 | } | |
415 | return (0); | |
416 | } | |
417 | ||
418 | /* bc_ParseVolumeSet | |
419 | * Open up the volume set configuration file as specified in our argument, | |
420 | * then parse the file to set up our internal representation. | |
421 | * exit: | |
422 | * 0 on successful processing, | |
423 | * -1 otherwise. | |
424 | */ | |
425 | ||
426 | int | |
427 | bc_ParseVolumeSet(void) | |
428 | { | |
429 | char tbuffer[1024]; /*Buffer for reading config file */ | |
430 | char vsname[256]; /*Volume set name */ | |
431 | char serverName[256]; /*Server name */ | |
432 | char partName[256]; /*Partition name */ | |
433 | struct bc_volumeEntry *tve; /*Ptr to generated volume spec struct */ | |
434 | struct bc_volumeSet *tvs = NULL; /*Ptr to volume set struct */ | |
435 | struct bc_volumeEntry **ppve, *pve; | |
436 | struct bc_volumeSet **ppvs, *pvs; | |
437 | afs_int32 code; /*Generalized return code */ | |
438 | char *tp; /*Result of fgets(), malloc() */ | |
439 | int readHeader; /*Is next thing to read a volume set hdr? */ | |
440 | ||
441 | udbClientTextP ctPtr; | |
442 | FILE *stream; | |
443 | ||
444 | extern struct bc_config *bc_globalConfig; | |
445 | ||
446 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
447 | stream = ctPtr->textStream; | |
448 | ||
449 | /* | |
450 | * Open up the volume set configuration file, fail if it can't be done. | |
451 | */ | |
452 | ||
453 | if (ctPtr->textSize == 0) /* empty is ok */ | |
454 | return (0); | |
455 | ||
456 | /* stream checks and initialization */ | |
457 | if (stream == NULL) | |
458 | return (BC_INTERNALERROR); | |
459 | ||
460 | rewind(stream); | |
461 | ||
462 | readHeader = 1; | |
463 | while (1) { | |
464 | /* Read in and process the next line of the volume set description | |
465 | * file. | |
466 | */ | |
467 | tp = fgets(tbuffer, sizeof(tbuffer), stream); | |
468 | if (!tp) | |
469 | break; | |
470 | if (readHeader) { /*r */ | |
471 | /* | |
472 | * Scan a header entry. | |
473 | */ | |
474 | readHeader = 0; | |
475 | code = sscanf(tbuffer, "%s %s", serverName, vsname); | |
476 | if ((code != 2) | |
477 | || (strcmp(serverName, "volumeset") != 0) | |
478 | ) { | |
479 | afs_com_err(whoami, 0, "Bad volume header line: '%s'", tbuffer); | |
480 | return (-1); | |
481 | } | |
482 | ||
483 | /* Create and fill in the volume set descriptor structure from | |
484 | * the info just read placing it at the head of its queue in the | |
485 | * global configuration structure. | |
486 | */ | |
487 | tvs = calloc(1, sizeof(struct bc_volumeSet)); | |
488 | tvs->name = strdup(vsname); | |
489 | ||
490 | /* append to the end */ | |
491 | for (ppvs = &bc_globalConfig->vset, pvs = *ppvs; pvs; | |
492 | ppvs = &pvs->next, pvs = *ppvs); | |
493 | *ppvs = tvs; | |
494 | tvs->next = (struct bc_volumeSet *)0; | |
495 | } /*r */ | |
496 | else { /*e */ | |
497 | /* Scan a volume name entry, which contains the server name, | |
498 | * partition pattern, and volume pattern. | |
499 | */ | |
500 | code = sscanf(tbuffer, "%s %s %s", serverName, partName, vsname); | |
501 | if (code == 1 && strcmp(serverName, "end") == 0) { | |
502 | /* This was really a line delimiting the current volume set. | |
503 | * Next time around, we should try to read a header. | |
504 | */ | |
505 | readHeader = 1; | |
506 | continue; | |
507 | } | |
508 | ||
509 | /* The line just read in is a volume spec. Create a new volume | |
510 | * spec record, then get the rest of the information regarding | |
511 | * the host, and stuff everything into place. | |
512 | */ | |
513 | tve = calloc(1, sizeof(struct bc_volumeEntry)); | |
514 | if (!tve) { | |
515 | afs_com_err(whoami, 0, | |
516 | "Can't malloc() a new volume spec record!"); | |
517 | return (-1); | |
518 | } | |
519 | if (bc_ParseHost(serverName, &(tve->server))) | |
520 | afs_com_err(whoami, 0, "Can't get required info on host '%s'", | |
521 | serverName); | |
522 | ||
523 | /* The above code has filled in the server sockaddr, now fill in | |
524 | * the rest of the fields. | |
525 | */ | |
526 | tve->serverName = strdup(serverName); | |
527 | if (!tve->serverName) { | |
528 | afs_com_err(whoami, 0, | |
529 | "Can't malloc() a new volume spec server name field!"); | |
530 | return (-1); | |
531 | } | |
532 | tve->partname = strdup(partName); | |
533 | if (!tve->partname) { | |
534 | afs_com_err(whoami, 0, | |
535 | "Can't malloc() a new volume spec partition pattern field!"); | |
536 | return (-1); | |
537 | } | |
538 | code = bc_GetPartitionID(partName, &tve->partition); | |
539 | if (code) { | |
540 | afs_com_err(whoami, 0, "Can't parse partition '%s'", partName); | |
541 | return -1; | |
542 | } | |
543 | tp = strdup(vsname); | |
544 | if (!tp) { | |
545 | afs_com_err(whoami, 0, | |
546 | "Can't malloc() a new volume spec volume pattern field!"); | |
547 | return (-1); | |
548 | } | |
549 | tve->name = tp; | |
550 | ||
551 | /* Now, thread it onto the list of other volume spec entries for | |
552 | * the current volume set. | |
553 | */ | |
554 | ||
555 | for (ppve = &tvs->ventries, pve = *ppve; pve; | |
556 | ppve = &pve->next, pve = *ppve); | |
557 | *ppve = tve; | |
558 | tve->next = (struct bc_volumeEntry *)0; | |
559 | } | |
560 | } /*forever loop */ | |
561 | ||
562 | /* If we hit an EOF in the middle of a volume set record, we bitch and | |
563 | * moan. | |
564 | */ | |
565 | if (!readHeader) | |
566 | return (-1); | |
567 | ||
568 | /* | |
569 | * Well, we did it. Return successfully. | |
570 | */ | |
571 | return (0); | |
572 | ||
573 | } /*bc_ParseVolumeSet */ | |
574 | ||
575 | /* bc_SaveVolumeSet | |
576 | * save the current volume set information to disk | |
577 | */ | |
578 | ||
579 | int | |
580 | bc_SaveVolumeSet(void) | |
581 | { | |
582 | afs_int32 code = 0; | |
583 | struct bc_volumeSet *tset; | |
584 | struct bc_volumeEntry *tentry; | |
585 | ||
586 | udbClientTextP ctPtr; | |
587 | FILE *stream; | |
588 | ||
589 | extern struct bc_config *bc_globalConfig; | |
590 | ||
591 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
592 | stream = ctPtr->textStream; | |
593 | ||
594 | /* must be locked */ | |
595 | if (ctPtr->lockHandle == 0) | |
596 | return (BC_INTERNALERROR); | |
597 | ||
598 | /* truncate the file */ | |
599 | code = ftruncate(fileno(stream), 0); | |
600 | if (code) | |
601 | ERROR(errno); | |
602 | ||
603 | rewind(stream); | |
604 | ||
605 | /* now write the volumeset information */ | |
606 | ||
607 | for (tset = bc_globalConfig->vset; tset != 0; tset = tset->next) { | |
608 | if (tset->flags & VSFLAG_TEMPORARY) | |
609 | continue; /* skip temporary entries */ | |
610 | ||
611 | fprintf(stream, "volumeset %s\n", tset->name); | |
612 | for (tentry = tset->ventries; tentry; tentry = tentry->next) { | |
613 | fprintf(stream, "%s %s %s\n", tentry->serverName, | |
614 | tentry->partname, tentry->name); | |
615 | } | |
616 | fprintf(stream, "end\n"); | |
617 | } | |
618 | ||
619 | if (ferror(stream)) | |
620 | return (BC_INTERNALERROR); | |
621 | ||
622 | /* send to server */ | |
623 | code = bcdb_SaveTextFile(ctPtr); | |
624 | if (code) | |
625 | ERROR(code); | |
626 | ||
627 | /* do this on bcdb_SaveTextFile */ | |
628 | /* increment local version number */ | |
629 | ctPtr->textVersion++; | |
630 | ||
631 | /* update locally stored file size */ | |
632 | ctPtr->textSize = filesize(ctPtr->textStream); | |
633 | ||
634 | error_exit: | |
635 | return (code); | |
636 | } | |
637 | ||
638 | afs_int32 | |
639 | bc_UpdateVolumeSet(void) | |
640 | { | |
641 | struct udbHandleS *uhptr = &udbHandle; | |
642 | udbClientTextP ctPtr; | |
643 | afs_int32 code; | |
644 | int lock = 0; | |
645 | ||
646 | /* lock schedules and check validity */ | |
647 | ctPtr = &bc_globalConfig->configText[TB_VOLUMESET]; | |
648 | ||
649 | /* Don't need a lock to check the version */ | |
650 | code = bc_CheckTextVersion(ctPtr); | |
651 | if (code != BC_VERSIONMISMATCH) { | |
652 | ERROR(code); /* version matches or some other error */ | |
653 | } | |
654 | ||
655 | /* Must update the volume sets */ | |
656 | /* If no lock alredy taken, then lock it */ | |
657 | if (ctPtr->lockHandle == 0) { | |
658 | code = bc_LockText(ctPtr); | |
659 | if (code) | |
660 | ERROR(code); | |
661 | lock = 1; | |
662 | } | |
663 | ||
664 | if (ctPtr->textVersion != -1) { | |
665 | printf("backup: obsolete volumesets - updating\n"); | |
666 | bc_ClearVolumeSets(); | |
667 | } | |
668 | ||
669 | /* open a temp file to store the config text received from buserver * | |
670 | * The open file stream is stored in ctPtr->textStream */ | |
671 | code = | |
672 | bc_openTextFile(ctPtr, | |
673 | &bc_globalConfig->tmpTextFileNames[TB_VOLUMESET][0]); | |
674 | if (code) | |
675 | ERROR(code); | |
676 | /* now get a fresh set of information from the database */ | |
677 | code = bcdb_GetTextFile(ctPtr); | |
678 | if (code) | |
679 | ERROR(code); | |
680 | ||
681 | /* fetch the version number */ | |
682 | code = | |
683 | ubik_BUDB_GetTextVersion(uhptr->uh_client, 0, ctPtr->textType, | |
684 | &ctPtr->textVersion); | |
685 | if (code) | |
686 | ERROR(code); | |
687 | ||
688 | /* parse the file */ | |
689 | code = bc_ParseVolumeSet(); | |
690 | if (code) | |
691 | ERROR(code); | |
692 | ||
693 | error_exit: | |
694 | if (lock && ctPtr->lockHandle) | |
695 | bc_UnlockText(ctPtr); | |
696 | return (code); | |
697 | } |