2 Bacula® - The Network Backup Solution
4 Copyright (C) 2000-2008 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) {
242 for (i=0; i<fileset->exclude_list.size(); i++) {
243 incexe = (findINCEXE *)fileset->exclude_list.get(i);
244 foreach_dlist(node, &incexe->name_list) {
245 fname = node->c_str();
246 Dmsg2(000, "Exc fname=%s ff->fname=%s\n", fname, ff->fname);
247 if (strcmp(fname, ff->fname) == 0) {
258 static bool accept_file(FF_PKT *ff)
262 findFILESET *fileset = ff->fileset;
263 findINCEXE *incexe = fileset->incexe;
264 const char *basename;
265 int (*match_func)(const char *pattern, const char *string, int flags);
267 if (ff->flags & FO_ENHANCEDWILD) {
268 // match_func = enh_fnmatch;
269 match_func = fnmatch;
270 if ((basename = last_path_separator(ff->fname)) != NULL)
273 basename = ff->fname;
275 match_func = fnmatch;
276 basename = ff->fname;
279 for (j = 0; j < incexe->opts_list.size(); j++) {
280 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
281 ff->flags = fo->flags;
282 ff->GZIP_level = fo->GZIP_level;
283 ff->ignoredir = fo->ignoredir;
284 ff->fstypes = fo->fstype;
285 ff->drivetypes = fo->drivetype;
287 fnm_flags = (ff->flags & FO_IGNORECASE) ? FNM_CASEFOLD : 0;
288 fnm_flags |= (ff->flags & FO_ENHANCEDWILD) ? FNM_PATHNAME : 0;
290 if (S_ISDIR(ff->statp.st_mode)) {
291 for (k=0; k<fo->wilddir.size(); k++) {
292 if (match_func((char *)fo->wilddir.get(k), ff->fname, fnmode|fnm_flags) == 0) {
293 if (ff->flags & FO_EXCLUDE) {
294 Dmsg2(100, "Exclude wilddir: %s file=%s\n", (char *)fo->wilddir.get(k),
296 return false; /* reject dir */
298 return true; /* accept dir */
302 for (k=0; k<fo->wildfile.size(); k++) {
303 if (match_func((char *)fo->wildfile.get(k), ff->fname, fnmode|fnm_flags) == 0) {
304 if (ff->flags & FO_EXCLUDE) {
305 Dmsg2(100, "Exclude wildfile: %s file=%s\n", (char *)fo->wildfile.get(k),
307 return false; /* reject file */
309 return true; /* accept file */
313 for (k=0; k<fo->wildbase.size(); k++) {
314 if (match_func((char *)fo->wildbase.get(k), basename, fnmode|fnm_flags) == 0) {
315 if (ff->flags & FO_EXCLUDE) {
316 Dmsg2(100, "Exclude wildbase: %s file=%s\n", (char *)fo->wildbase.get(k),
318 return false; /* reject file */
320 return true; /* accept file */
324 for (k=0; k<fo->wild.size(); k++) {
325 if (match_func((char *)fo->wild.get(k), ff->fname, fnmode|fnm_flags) == 0) {
326 if (ff->flags & FO_EXCLUDE) {
327 Dmsg2(100, "Exclude wild: %s file=%s\n", (char *)fo->wild.get(k),
329 return false; /* reject file */
331 return true; /* accept file */
334 if (S_ISDIR(ff->statp.st_mode)) {
335 for (k=0; k<fo->regexdir.size(); k++) {
336 const int nmatch = 30;
337 regmatch_t pmatch[nmatch];
338 if (regexec((regex_t *)fo->regexdir.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
339 if (ff->flags & FO_EXCLUDE) {
340 return false; /* reject file */
342 return true; /* accept file */
346 for (k=0; k<fo->regexfile.size(); k++) {
347 const int nmatch = 30;
348 regmatch_t pmatch[nmatch];
349 if (regexec((regex_t *)fo->regexfile.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
350 if (ff->flags & FO_EXCLUDE) {
351 return false; /* reject file */
353 return true; /* accept file */
357 for (k=0; k<fo->regex.size(); k++) {
358 const int nmatch = 30;
359 regmatch_t pmatch[nmatch];
360 if (regexec((regex_t *)fo->regex.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
361 if (ff->flags & FO_EXCLUDE) {
362 return false; /* reject file */
364 return true; /* accept file */
368 * If we have an empty Options clause with exclude, then
371 if (ff->flags & FO_EXCLUDE &&
372 fo->regex.size() == 0 && fo->wild.size() == 0 &&
373 fo->regexdir.size() == 0 && fo->wilddir.size() == 0 &&
374 fo->regexfile.size() == 0 && fo->wildfile.size() == 0 &&
375 fo->wildbase.size() == 0) {
376 return false; /* reject file */
380 /* Now apply the Exclude { } directive */
381 for (i=0; i<fileset->exclude_list.size(); i++) {
382 findINCEXE *incexe = (findINCEXE *)fileset->exclude_list.get(i);
383 for (j=0; j<incexe->opts_list.size(); j++) {
384 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
385 fnm_flags = (fo->flags & FO_IGNORECASE) ? FNM_CASEFOLD : 0;
386 for (k=0; k<fo->wild.size(); k++) {
387 if (fnmatch((char *)fo->wild.get(k), ff->fname, fnmode|fnm_flags) == 0) {
388 Dmsg1(100, "Reject wild1: %s\n", ff->fname);
389 return false; /* reject file */
393 fnm_flags = (incexe->current_opts != NULL && incexe->current_opts->flags & FO_IGNORECASE)
396 foreach_dlist(node, &incexe->name_list) {
397 char *fname = node->c_str();
398 if (fnmatch(fname, ff->fname, fnmode|fnm_flags) == 0) {
399 Dmsg1(100, "Reject wild2: %s\n", ff->fname);
400 return false; /* reject file */
408 * The code comes here for each file examined.
409 * We filter the files, then call the user's callback if
410 * the file is included.
412 static int our_callback(JCR *jcr, FF_PKT *ff, bool top_level)
415 return ff->file_save(jcr, ff, top_level); /* accept file */
429 // return ff->file_save(jcr, ff, top_level);
431 /* These items can be filtered */
442 if (accept_file(ff)) {
443 return ff->file_save(jcr, ff, top_level);
445 Dmsg1(100, "Skip file %s\n", ff->fname);
446 return -1; /* ignore this file */
450 Dmsg1(000, "Unknown FT code %d\n", ff->type);
457 * Terminate find_files() and release
458 * all allocated memory
461 term_find_files(FF_PKT *ff)
465 free_pool_memory(ff->sys_fname);
466 if (ff->fname_save) {
467 free_pool_memory(ff->fname_save);
470 free_pool_memory(ff->link_save);
472 hard_links = term_find_one(ff);