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 < 2048) {
74 name_max = pathconf(".", _PC_NAME_MAX);
75 if (name_max < 2048) {
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 strcpy(ff->AccurateOpts, "C:mcs"); /* mtime+ctime+size by default */
179 strcpy(ff->BaseJobOpts, "J:mspug5"); /* mtime+size+perm+user+group+chk */
180 for (i=0; i<fileset->include_list.size(); i++) {
181 findINCEXE *incexe = (findINCEXE *)fileset->include_list.get(i);
182 fileset->incexe = incexe;
184 * By setting all options, we in effect or the global options
185 * which is what we want.
187 for (j=0; j<incexe->opts_list.size(); j++) {
188 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
189 ff->flags |= fo->flags;
190 ff->GZIP_level = fo->GZIP_level;
191 ff->strip_path = fo->strip_path;
192 ff->fstypes = fo->fstype;
193 ff->drivetypes = fo->drivetype;
194 bstrncat(ff->VerifyOpts, fo->VerifyOpts, sizeof(ff->VerifyOpts));
195 bstrncat(ff->AccurateOpts, fo->AccurateOpts, sizeof(ff->AccurateOpts));
196 bstrncat(ff->BaseJobOpts, fo->BaseJobOpts, sizeof(ff->BaseJobOpts));
199 foreach_dlist(node, &incexe->name_list) {
200 char *fname = node->c_str();
201 Dmsg1(100, "F %s\n", fname);
202 ff->top_fname = fname;
203 if (find_one_file(jcr, ff, our_callback, ff->top_fname, (dev_t)-1, true) == 0) {
204 return 0; /* error return */
208 foreach_dlist(node, &incexe->plugin_list) {
209 char *fname = node->c_str();
210 Dmsg1(100, "PluginCommand: %s\n", fname);
211 ff->top_fname = fname;
212 ff->cmd_plugin = true;
213 plugin_save(jcr, ff, true);
214 ff->cmd_plugin = false;
223 * Test if the currently selected directory (in ff->fname) is
224 * explicitly in the Include list or explicitly in the Exclude
227 bool is_in_fileset(FF_PKT *ff)
233 findFILESET *fileset = ff->fileset;
235 for (i=0; i<fileset->include_list.size(); i++) {
236 incexe = (findINCEXE *)fileset->include_list.get(i);
237 foreach_dlist(node, &incexe->name_list) {
238 fname = node->c_str();
239 Dmsg2(100, "Inc fname=%s ff->fname=%s\n", fname, ff->fname);
240 if (strcmp(fname, ff->fname) == 0) {
245 for (i=0; i<fileset->exclude_list.size(); i++) {
246 incexe = (findINCEXE *)fileset->exclude_list.get(i);
247 foreach_dlist(node, &incexe->name_list) {
248 fname = node->c_str();
249 Dmsg2(100, "Exc fname=%s ff->fname=%s\n", fname, ff->fname);
250 if (strcmp(fname, ff->fname) == 0) {
260 static bool accept_file(FF_PKT *ff)
264 findFILESET *fileset = ff->fileset;
265 findINCEXE *incexe = fileset->incexe;
266 const char *basename;
267 int (*match_func)(const char *pattern, const char *string, int flags);
269 if (ff->flags & FO_ENHANCEDWILD) {
270 // match_func = enh_fnmatch;
271 match_func = fnmatch;
272 if ((basename = last_path_separator(ff->fname)) != NULL)
275 basename = ff->fname;
277 match_func = fnmatch;
278 basename = ff->fname;
281 for (j = 0; j < incexe->opts_list.size(); j++) {
282 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
283 ff->flags = fo->flags;
284 ff->GZIP_level = fo->GZIP_level;
285 ff->fstypes = fo->fstype;
286 ff->drivetypes = fo->drivetype;
288 fnm_flags = (ff->flags & FO_IGNORECASE) ? FNM_CASEFOLD : 0;
289 fnm_flags |= (ff->flags & FO_ENHANCEDWILD) ? FNM_PATHNAME : 0;
291 if (S_ISDIR(ff->statp.st_mode)) {
292 for (k=0; k<fo->wilddir.size(); k++) {
293 if (match_func((char *)fo->wilddir.get(k), ff->fname, fnmode|fnm_flags) == 0) {
294 if (ff->flags & FO_EXCLUDE) {
295 Dmsg2(100, "Exclude wilddir: %s file=%s\n", (char *)fo->wilddir.get(k),
297 return false; /* reject dir */
299 return true; /* accept dir */
303 for (k=0; k<fo->wildfile.size(); k++) {
304 if (match_func((char *)fo->wildfile.get(k), ff->fname, fnmode|fnm_flags) == 0) {
305 if (ff->flags & FO_EXCLUDE) {
306 Dmsg2(100, "Exclude wildfile: %s file=%s\n", (char *)fo->wildfile.get(k),
308 return false; /* reject file */
310 return true; /* accept file */
314 for (k=0; k<fo->wildbase.size(); k++) {
315 if (match_func((char *)fo->wildbase.get(k), basename, fnmode|fnm_flags) == 0) {
316 if (ff->flags & FO_EXCLUDE) {
317 Dmsg2(100, "Exclude wildbase: %s file=%s\n", (char *)fo->wildbase.get(k),
319 return false; /* reject file */
321 return true; /* accept file */
325 for (k=0; k<fo->wild.size(); k++) {
326 if (match_func((char *)fo->wild.get(k), ff->fname, fnmode|fnm_flags) == 0) {
327 if (ff->flags & FO_EXCLUDE) {
328 Dmsg2(100, "Exclude wild: %s file=%s\n", (char *)fo->wild.get(k),
330 return false; /* reject file */
332 return true; /* accept file */
335 if (S_ISDIR(ff->statp.st_mode)) {
336 for (k=0; k<fo->regexdir.size(); k++) {
337 const int nmatch = 30;
338 regmatch_t pmatch[nmatch];
339 if (regexec((regex_t *)fo->regexdir.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
340 if (ff->flags & FO_EXCLUDE) {
341 return false; /* reject file */
343 return true; /* accept file */
347 for (k=0; k<fo->regexfile.size(); k++) {
348 const int nmatch = 30;
349 regmatch_t pmatch[nmatch];
350 if (regexec((regex_t *)fo->regexfile.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
351 if (ff->flags & FO_EXCLUDE) {
352 return false; /* reject file */
354 return true; /* accept file */
358 for (k=0; k<fo->regex.size(); k++) {
359 const int nmatch = 30;
360 regmatch_t pmatch[nmatch];
361 if (regexec((regex_t *)fo->regex.get(k), ff->fname, nmatch, pmatch, 0) == 0) {
362 if (ff->flags & FO_EXCLUDE) {
363 return false; /* reject file */
365 return true; /* accept file */
369 * If we have an empty Options clause with exclude, then
372 if (ff->flags & FO_EXCLUDE &&
373 fo->regex.size() == 0 && fo->wild.size() == 0 &&
374 fo->regexdir.size() == 0 && fo->wilddir.size() == 0 &&
375 fo->regexfile.size() == 0 && fo->wildfile.size() == 0 &&
376 fo->wildbase.size() == 0) {
377 return false; /* reject file */
381 /* Now apply the Exclude { } directive */
382 for (i=0; i<fileset->exclude_list.size(); i++) {
383 findINCEXE *incexe = (findINCEXE *)fileset->exclude_list.get(i);
384 for (j=0; j<incexe->opts_list.size(); j++) {
385 findFOPTS *fo = (findFOPTS *)incexe->opts_list.get(j);
386 fnm_flags = (fo->flags & FO_IGNORECASE) ? FNM_CASEFOLD : 0;
387 for (k=0; k<fo->wild.size(); k++) {
388 if (fnmatch((char *)fo->wild.get(k), ff->fname, fnmode|fnm_flags) == 0) {
389 Dmsg1(100, "Reject wild1: %s\n", ff->fname);
390 return false; /* reject file */
394 fnm_flags = (incexe->current_opts != NULL && incexe->current_opts->flags & FO_IGNORECASE)
397 foreach_dlist(node, &incexe->name_list) {
398 char *fname = node->c_str();
399 if (fnmatch(fname, ff->fname, fnmode|fnm_flags) == 0) {
400 Dmsg1(100, "Reject wild2: %s\n", ff->fname);
401 return false; /* reject file */
409 * The code comes here for each file examined.
410 * We filter the files, then call the user's callback if
411 * the file is included.
413 static int our_callback(JCR *jcr, FF_PKT *ff, bool top_level)
416 return ff->file_save(jcr, ff, top_level); /* accept file */
430 // return ff->file_save(jcr, ff, top_level);
432 /* These items can be filtered */
443 if (accept_file(ff)) {
444 return ff->file_save(jcr, ff, top_level);
446 Dmsg1(100, "Skip file %s\n", ff->fname);
447 return -1; /* ignore this file */
451 Dmsg1(000, "Unknown FT code %d\n", ff->type);
458 * Terminate find_files() and release
459 * all allocated memory
462 term_find_files(FF_PKT *ff)
466 free_pool_memory(ff->sys_fname);
467 if (ff->fname_save) {
468 free_pool_memory(ff->fname_save);
471 free_pool_memory(ff->link_save);
473 hard_links = term_find_one(ff);