2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2009 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
29 * Main routine for finding files on a file system.
30 * The heart of the work to find the files on the
31 * system is done in find_one.c. Here we have the
32 * higher level control as well as the matching
33 * routines for the new syntax Options resource.
44 int32_t name_max; /* filename max length */
45 int32_t path_max; /* path name max length */
49 #define bmalloc(x) sm_malloc(__FILE__, __LINE__, x)
51 static int our_callback(JCR *jcr, FF_PKT *ff, bool top_level);
52 static bool accept_file(FF_PKT *ff);
54 static const int fnmode = 0;
57 * Initialize the find files "global" variables
59 FF_PKT *init_find_files()
63 ff = (FF_PKT *)bmalloc(sizeof(FF_PKT));
64 memset(ff, 0, sizeof(FF_PKT));
66 ff->sys_fname = get_pool_memory(PM_FNAME);
68 /* Get system path and filename maximum lengths */
69 path_max = pathconf(".", _PC_PATH_MAX);
70 if (path_max < 1024) {
74 name_max = pathconf(".", _PC_NAME_MAX);
75 if (name_max < 1024) {
78 path_max++; /* add for EOS */
79 name_max++; /* add for EOS */
81 Dmsg1(100, "init_find_files ff=%p\n", ff);
86 * Set find_files options. For the moment, we only
87 * provide for full/incremental saves, and setting
88 * of save_time. For additional options, see above
91 set_find_options(FF_PKT *ff, int incremental, time_t save_time)
93 Dmsg0(100, "Enter set_find_options()\n");
94 ff->incremental = incremental;
95 ff->save_time = save_time;
96 Dmsg0(100, "Leave set_find_options()\n");
100 set_find_changed_function(FF_PKT *ff, bool check_fct(JCR *jcr, FF_PKT *ff))
102 Dmsg0(100, "Enter set_find_changed_function()\n");
103 ff->check_fct = check_fct;
107 * For VSS we need to know which windows drives
108 * are used, because we create a snapshot of all used
109 * drives before operation
111 * the function returns the number of used drives and
112 * fills "drives" with up to 26 (A..Z) drive names
116 get_win32_driveletters(FF_PKT *ff, char* szDrives)
118 /* szDrives must be at least 27 bytes long */
120 #if !defined(HAVE_WIN32)
124 szDrives[0] = 0; /* make empty */
127 findFILESET *fileset = ff->fileset;
132 for (i=0; i<fileset->include_list.size(); i++) {
133 findINCEXE *incexe = (findINCEXE *)fileset->include_list.get(i);
135 /* look through all files and check */
136 foreach_dlist(node, &incexe->name_list) {
137 char *fname = node->c_str();
138 /* fname should match x:/ */
139 if (strlen(fname) >= 2 && B_ISALPHA(fname[0])
140 && fname[1] == ':') {
142 /* always add in uppercase */
143 char ch = toupper(fname[0]);
144 /* if not found in string, add drive letter */
145 if (!strchr(szDrives,ch)) {
146 szDrives[nCount] = ch;
147 szDrives[nCount+1] = 0;
158 * Call this subroutine with a callback subroutine as the first
159 * argument and a packet as the second argument, this packet
160 * will be passed back to the callback subroutine as the last
165 find_files(JCR *jcr, FF_PKT *ff, int file_save(JCR *jcr, FF_PKT *ff_pkt, bool top_level),
166 int plugin_save(JCR *jcr, FF_PKT *ff_pkt, bool top_level))
168 ff->file_save = file_save;
169 ff->plugin_save = plugin_save;
171 /* This is the new way */
172 findFILESET *fileset = ff->fileset;
176 ff->VerifyOpts[0] = 'V';
177 ff->VerifyOpts[1] = 0;
178 for (i=0; i<fileset->include_list.size(); i++) {
179 findINCEXE *incexe = (findINCEXE *)fileset->include_list.get(i);
180 fileset->incexe = incexe;
182 * By setting all options, we in effect or the global options
183 * which is what we want.
185 for (j=0; j<incexe->opts_list.size(); j++) {
186 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
187 ff->flags |= fo->flags;
188 ff->GZIP_level = fo->GZIP_level;
189 ff->strip_path = fo->strip_path;
190 ff->fstypes = fo->fstype;
191 ff->drivetypes = fo->drivetype;
192 bstrncat(ff->VerifyOpts, fo->VerifyOpts, sizeof(ff->VerifyOpts));
195 foreach_dlist(node, &incexe->name_list) {
196 char *fname = node->c_str();
197 Dmsg1(100, "F %s\n", fname);
198 ff->top_fname = fname;
199 if (find_one_file(jcr, ff, our_callback, ff->top_fname, (dev_t)-1, true) == 0) {
200 return 0; /* error return */
204 foreach_dlist(node, &incexe->plugin_list) {
205 char *fname = node->c_str();
206 Dmsg1(100, "PluginCommand: %s\n", fname);
207 ff->top_fname = fname;
208 ff->cmd_plugin = true;
209 plugin_save(jcr, ff, true);
210 ff->cmd_plugin = false;
219 * Test if the currently selected directory (in ff->fname) is
220 * explicitly in the Include list or explicitly in the Exclude
223 bool is_in_fileset(FF_PKT *ff)
229 findFILESET *fileset = ff->fileset;
231 for (i=0; i<fileset->include_list.size(); i++) {
232 incexe = (findINCEXE *)fileset->include_list.get(i);
233 foreach_dlist(node, &incexe->name_list) {
234 fname = node->c_str();
235 Dmsg2(100, "Inc fname=%s ff->fname=%s\n", fname, ff->fname);
236 if (strcmp(fname, ff->fname) == 0) {
241 for (i=0; i<fileset->exclude_list.size(); i++) {
242 incexe = (findINCEXE *)fileset->exclude_list.get(i);
243 foreach_dlist(node, &incexe->name_list) {
244 fname = node->c_str();
245 Dmsg2(100, "Exc fname=%s ff->fname=%s\n", fname, ff->fname);
246 if (strcmp(fname, ff->fname) == 0) {
256 static bool accept_file(FF_PKT *ff)
260 findFILESET *fileset = ff->fileset;
261 findINCEXE *incexe = fileset->incexe;
262 const char *basename;
263 int (*match_func)(const char *pattern, const char *string, int flags);
265 if (ff->flags & FO_ENHANCEDWILD) {
266 // match_func = enh_fnmatch;
267 match_func = fnmatch;
268 if ((basename = last_path_separator(ff->fname)) != NULL)
271 basename = ff->fname;
273 match_func = fnmatch;
274 basename = ff->fname;
277 for (j = 0; j < incexe->opts_list.size(); j++) {
278 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
279 ff->flags = fo->flags;
280 ff->GZIP_level = fo->GZIP_level;
281 ff->ignoredir = fo->ignoredir;
282 ff->fstypes = fo->fstype;
283 ff->drivetypes = fo->drivetype;
285 fnm_flags = (ff->flags & FO_IGNORECASE) ? FNM_CASEFOLD : 0;
286 fnm_flags |= (ff->flags & FO_ENHANCEDWILD) ? FNM_PATHNAME : 0;
288 if (S_ISDIR(ff->statp.st_mode)) {
289 for (k=0; k<fo->wilddir.size(); k++) {
290 if (match_func((char *)fo->wilddir.get(k), ff->fname, fnmode|fnm_flags) == 0) {
291 if (ff->flags & FO_EXCLUDE) {
292 Dmsg2(100, "Exclude wilddir: %s file=%s\n", (char *)fo->wilddir.get(k),
294 return false; /* reject dir */
296 return true; /* accept dir */
300 for (k=0; k<fo->wildfile.size(); k++) {
301 if (match_func((char *)fo->wildfile.get(k), ff->fname, fnmode|fnm_flags) == 0) {
302 if (ff->flags & FO_EXCLUDE) {
303 Dmsg2(100, "Exclude wildfile: %s file=%s\n", (char *)fo->wildfile.get(k),
305 return false; /* reject file */
307 return true; /* accept file */
311 for (k=0; k<fo->wildbase.size(); k++) {
312 if (match_func((char *)fo->wildbase.get(k), basename, fnmode|fnm_flags) == 0) {
313 if (ff->flags & FO_EXCLUDE) {
314 Dmsg2(100, "Exclude wildbase: %s file=%s\n", (char *)fo->wildbase.get(k),
316 return false; /* reject file */
318 return true; /* accept file */
322 for (k=0; k<fo->wild.size(); k++) {
323 if (match_func((char *)fo->wild.get(k), ff->fname, fnmode|fnm_flags) == 0) {
324 if (ff->flags & FO_EXCLUDE) {
325 Dmsg2(100, "Exclude wild: %s file=%s\n", (char *)fo->wild.get(k),
327 return false; /* reject file */
329 return true; /* accept file */
332 if (S_ISDIR(ff->statp.st_mode)) {
333 for (k=0; k<fo->regexdir.size(); k++) {
334 const int nmatch = 30;
335 regmatch_t pmatch[nmatch];
336 if (regexec((regex_t *)fo->regexdir.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
337 if (ff->flags & FO_EXCLUDE) {
338 return false; /* reject file */
340 return true; /* accept file */
344 for (k=0; k<fo->regexfile.size(); k++) {
345 const int nmatch = 30;
346 regmatch_t pmatch[nmatch];
347 if (regexec((regex_t *)fo->regexfile.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
348 if (ff->flags & FO_EXCLUDE) {
349 return false; /* reject file */
351 return true; /* accept file */
355 for (k=0; k<fo->regex.size(); k++) {
356 const int nmatch = 30;
357 regmatch_t pmatch[nmatch];
358 if (regexec((regex_t *)fo->regex.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
359 if (ff->flags & FO_EXCLUDE) {
360 return false; /* reject file */
362 return true; /* accept file */
366 * If we have an empty Options clause with exclude, then
369 if (ff->flags & FO_EXCLUDE &&
370 fo->regex.size() == 0 && fo->wild.size() == 0 &&
371 fo->regexdir.size() == 0 && fo->wilddir.size() == 0 &&
372 fo->regexfile.size() == 0 && fo->wildfile.size() == 0 &&
373 fo->wildbase.size() == 0) {
374 return false; /* reject file */
378 /* Now apply the Exclude { } directive */
379 for (i=0; i<fileset->exclude_list.size(); i++) {
380 findINCEXE *incexe = (findINCEXE *)fileset->exclude_list.get(i);
381 for (j=0; j<incexe->opts_list.size(); j++) {
382 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
383 fnm_flags = (fo->flags & FO_IGNORECASE) ? FNM_CASEFOLD : 0;
384 for (k=0; k<fo->wild.size(); k++) {
385 if (fnmatch((char *)fo->wild.get(k), ff->fname, fnmode|fnm_flags) == 0) {
386 Dmsg1(100, "Reject wild1: %s\n", ff->fname);
387 return false; /* reject file */
391 fnm_flags = (incexe->current_opts != NULL && incexe->current_opts->flags & FO_IGNORECASE)
394 foreach_dlist(node, &incexe->name_list) {
395 char *fname = node->c_str();
396 if (fnmatch(fname, ff->fname, fnmode|fnm_flags) == 0) {
397 Dmsg1(100, "Reject wild2: %s\n", ff->fname);
398 return false; /* reject file */
406 * The code comes here for each file examined.
407 * We filter the files, then call the user's callback if
408 * the file is included.
410 static int our_callback(JCR *jcr, FF_PKT *ff, bool top_level)
413 return ff->file_save(jcr, ff, top_level); /* accept file */
427 // return ff->file_save(jcr, ff, top_level);
429 /* These items can be filtered */
440 if (accept_file(ff)) {
441 return ff->file_save(jcr, ff, top_level);
443 Dmsg1(100, "Skip file %s\n", ff->fname);
444 return -1; /* ignore this file */
448 Dmsg1(000, "Unknown FT code %d\n", ff->type);
455 * Terminate find_files() and release
456 * all allocated memory
459 term_find_files(FF_PKT *ff)
463 free_pool_memory(ff->sys_fname);
464 if (ff->fname_save) {
465 free_pool_memory(ff->fname_save);
468 free_pool_memory(ff->link_save);
470 hard_links = term_find_one(ff);