Line data Source code
1 : #include "burp.h"
2 : #include "base64.h"
3 : #include "cmd.h"
4 : #include "conf.h"
5 : #include "conffile.h"
6 : #include "client/main.h"
7 : #include "handy.h"
8 : #include "hexmap.h"
9 : #include "lock.h"
10 : #include "log.h"
11 : #include "server/main.h"
12 : #include "server/protocol1/bedup.h"
13 : #include "server/protocol2/bsigs.h"
14 : #include "server/protocol2/bsparse.h"
15 : #include "server/protocol2/champ_chooser/champ_server.h"
16 :
17 0 : static void usage_server(void)
18 : {
19 : #ifndef HAVE_WIN32
20 : printf("\nThe configuration file specifies whether %s runs in server or client mode.\n", PACKAGE_TARNAME);
21 0 : printf("\nServer usage: %s [options]\n", progname());
22 : printf("\n");
23 : printf(" Options:\n");
24 : printf(" -a c Run as a stand-alone champion chooser.\n");
25 0 : printf(" -c <path> Path to conf file (default: %s).\n", config_default_path());
26 : printf(" -d <path> a single client in the status monitor.\n");
27 : printf(" -F Stay in the foreground.\n");
28 : printf(" -g Generate initial CA certificates and exit.\n");
29 : printf(" -h|-? Print this text and exit.\n");
30 : printf(" -i Print index of symbols and exit.\n");
31 : printf(" -n Do not fork any children (implies '-F').\n");
32 : printf(" -Q Do not log to stdout (overrides config file)\n");
33 : printf(" -t Dry-run to test config file syntax.\n");
34 : printf(" -v Print version and exit.\n");
35 : printf("Options to use with '-a c':\n");
36 : printf(" -C <client> Run as if forked via a connection from this client.\n");
37 : printf("\n");
38 : #endif
39 0 : }
40 :
41 0 : static void usage_client(void)
42 : {
43 0 : printf("\nClient usage: %s [options]\n", progname());
44 : printf("\n");
45 : printf(" Options:\n");
46 : printf(" -a <action> The action can be one of the following.\n");
47 : printf(" b: backup\n");
48 : printf(" delete: delete\n");
49 : printf(" d: diff\n");
50 : printf(" e: estimate\n");
51 : printf(" l: list (this is the default when an action is not given)\n");
52 : printf(" L: long list\n");
53 : printf(" m: monitor interface\n");
54 : printf(" r: restore\n");
55 : #ifndef HAVE_WIN32
56 : printf(" s: status monitor (ncurses)\n");
57 : printf(" S: status monitor snapshot\n");
58 : #endif
59 : printf(" t: timed backup\n");
60 : printf(" T: check backup timer, but do not actually backup\n");
61 : printf(" v: verify\n");
62 : printf(" -b <number> Backup number (default: the most recent backup).\n");
63 0 : printf(" -c <path> Path to conf file (default: %s).\n", config_default_path());
64 : printf(" -d <directory> Directory to restore to, or directory to list.\n");
65 : printf(" -f Allow overwrite during restore.\n");
66 : printf(" -h|-? Print this text and exit.\n");
67 : printf(" -i Print index of symbols and exit.\n");
68 : printf(" -q <max secs> Randomised delay of starting a timed backup.\n");
69 : printf(" -Q Do not log to stdout (overrides config file)\n");
70 : printf(" -r <regex> Specify a regular expression.\n");
71 : printf(" -s <number> Number of leading path components to strip during restore.\n");
72 : printf(" -t Dry-run to test config file syntax.\n");
73 : printf(" -v Print version and exit.\n");
74 : #ifdef HAVE_WIN32
75 : printf(" -x Do not use the Windows VSS API when restoring.\n");
76 : #else
77 : printf(" -x Strip Windows VSS data when restoring.\n");
78 : printf("Options to use with '-a S':\n");
79 : printf(" -C <client> Show a particular client.\n");
80 : printf(" -b <number> Show listable files in a particular backup (requires -C).\n");
81 : printf(" -d <path> Show a particular path in a backup (requires -C and -b).\n");
82 : printf(" -l <path> Log file for the status monitor.\n");
83 : printf(" -z <file> Dump a particular log file in a backup (requires -C and -b).\n");
84 : #endif
85 : printf("\n");
86 : #ifndef HAVE_WIN32
87 : printf(" See %s or the man page ('man %s') for usage examples\n",
88 : PACKAGE_URL, PACKAGE_TARNAME);
89 : printf(" and additional configuration options.\n\n");
90 : #else
91 : printf(" See %s for usage examples and additional configuration\n",
92 : PACKAGE_TARNAME);
93 : printf(" options.\n\n");
94 : #endif
95 0 : }
96 :
97 0 : int reload(struct conf **confs, const char *conffile, bool firsttime)
98 : {
99 0 : if(!firsttime) logp("Reloading config\n");
100 :
101 0 : if(confs_init(confs)) return -1;
102 :
103 0 : if(conf_load_global_only(conffile, confs)) return -1;
104 :
105 0 : umask(get_mode_t(confs[OPT_UMASK]));
106 :
107 : // This will turn on syslogging which could not be turned on before
108 : // conf_load.
109 0 : log_fzp_set(NULL, confs);
110 :
111 : #ifndef HAVE_WIN32
112 0 : if(get_e_burp_mode(confs[OPT_BURP_MODE])==BURP_MODE_SERVER)
113 0 : setup_signals();
114 : #endif
115 :
116 : return 0;
117 : }
118 :
119 : static int replace_conf_str(struct conf *conf, const char *newval)
120 : {
121 0 : if(!newval) return 0;
122 0 : return set_string(conf, newval);
123 : }
124 :
125 : static void usage(void)
126 : {
127 0 : usage_server();
128 0 : usage_client();
129 : }
130 :
131 0 : static int parse_action(enum action *act, const char *optarg)
132 : {
133 0 : if(!strncmp(optarg, "backup", 1))
134 0 : *act=ACTION_BACKUP;
135 0 : else if(!strncmp(optarg, "timedbackup", 1))
136 0 : *act=ACTION_BACKUP_TIMED;
137 0 : else if(!strncmp(optarg, "Timercheck", 1))
138 0 : *act=ACTION_TIMER_CHECK;
139 0 : else if(!strncmp(optarg, "restore", 1))
140 0 : *act=ACTION_RESTORE;
141 0 : else if(!strncmp(optarg, "verify", 1))
142 0 : *act=ACTION_VERIFY;
143 0 : else if(!strncmp(optarg, "list", 1))
144 0 : *act=ACTION_LIST;
145 0 : else if(!strncmp(optarg, "List", 1))
146 0 : *act=ACTION_LIST_LONG;
147 0 : else if(!strncmp(optarg, "status", 1))
148 0 : *act=ACTION_STATUS;
149 0 : else if(!strncmp(optarg, "Status", 1))
150 0 : *act=ACTION_STATUS_SNAPSHOT;
151 0 : else if(!strncmp(optarg, "estimate", 1))
152 0 : *act=ACTION_ESTIMATE;
153 : // Make them spell 'delete' out fully so that it is less likely to be
154 : // used accidently.
155 0 : else if(!strncmp_w(optarg, "delete"))
156 0 : *act=ACTION_DELETE;
157 0 : else if(!strncmp(optarg, "champchooser", 1))
158 0 : *act=ACTION_CHAMP_CHOOSER;
159 0 : else if(!strncmp(optarg, "diff", 1))
160 0 : *act=ACTION_DIFF;
161 0 : else if(!strncmp(optarg, "Diff", 1))
162 0 : *act=ACTION_DIFF_LONG;
163 0 : else if(!strncmp(optarg, "monitor", 1))
164 0 : *act=ACTION_MONITOR;
165 : else
166 : {
167 : usage();
168 0 : return -1;
169 : }
170 : return 0;
171 : }
172 :
173 : #ifndef HAVE_WIN32
174 0 : static int run_champ_chooser(struct conf **confs)
175 : {
176 0 : const char *orig_client=get_string(confs[OPT_ORIG_CLIENT]);
177 0 : if(orig_client && *orig_client)
178 0 : return champ_chooser_server_standalone(confs);
179 0 : logp("No client name given for standalone champion chooser process.\n");
180 0 : logp("Try using the '-C' option.\n");
181 0 : return 1;
182 : }
183 :
184 0 : static int server_modes(enum action act,
185 : const char *conffile, struct lock *lock, int generate_ca_only,
186 : struct conf **confs)
187 : {
188 0 : switch(act)
189 : {
190 : case ACTION_CHAMP_CHOOSER:
191 : // We are running on the server machine, wanting to
192 : // be a standalone champion chooser process.
193 0 : return run_champ_chooser(confs);
194 : default:
195 0 : return server(confs, conffile, lock, generate_ca_only);
196 : }
197 : }
198 : #endif
199 :
200 0 : static void random_delay(struct conf **confs)
201 : {
202 : int delay;
203 0 : int randomise=get_int(confs[OPT_RANDOMISE]);
204 0 : if(!randomise) return;
205 0 : srand(getpid());
206 0 : delay=rand()%randomise;
207 0 : logp("Sleeping %d seconds\n", delay);
208 0 : sleep(delay);
209 : }
210 :
211 0 : static int run_test_confs(struct conf **confs, const char *client)
212 : {
213 0 : int ret=-1;
214 0 : struct conf **cconfs=NULL;
215 0 : if(!client)
216 : {
217 0 : confs_dump(confs, 0);
218 0 : ret=0;
219 0 : goto end;
220 : }
221 0 : if(!(cconfs=confs_alloc()))
222 : goto end;
223 0 : confs_init(cconfs);
224 0 : if(set_string(cconfs[OPT_CNAME], client)
225 0 : || set_string(cconfs[OPT_PEER_VERSION], PACKAGE_VERSION)
226 0 : || conf_load_clientconfdir(confs, cconfs))
227 : goto end;
228 0 : confs_dump(cconfs, CONF_FLAG_CC_OVERRIDE|CONF_FLAG_INCEXC);
229 :
230 : end:
231 0 : confs_free(&cconfs);
232 0 : return ret;
233 : }
234 :
235 0 : static struct lock *get_prog_lock(struct conf **confs)
236 : {
237 0 : struct lock *lock=NULL;
238 0 : const char *lockfile=confs_get_lockfile(confs);
239 0 : if(!(lock=lock_alloc_and_init(lockfile)))
240 : goto error;
241 0 : lock_get(lock);
242 0 : switch(lock->status)
243 : {
244 : case GET_LOCK_GOT:
245 : return lock;
246 : case GET_LOCK_NOT_GOT:
247 0 : logp("Could not get lockfile.\n");
248 0 : logp("Another process is probably running.\n");
249 0 : goto error;
250 : case GET_LOCK_ERROR:
251 : default:
252 0 : logp("Could not get lockfile.\n");
253 0 : logp("Maybe you do not have permissions to write to %s.\n", lockfile);
254 0 : goto error;
255 : }
256 : error:
257 0 : lock_free(&lock);
258 0 : return NULL;
259 : }
260 :
261 : #ifdef HAVE_WIN32
262 : #define main RealMain
263 : #endif
264 : #ifndef UTEST
265 : static
266 : #endif
267 0 : int real_main(int argc, char *argv[])
268 : {
269 0 : int ret=1;
270 0 : int option=0;
271 0 : int daemon=1;
272 0 : int forking=1;
273 0 : int strip=0;
274 0 : int randomise=0;
275 0 : struct lock *lock=NULL;
276 0 : struct conf **confs=NULL;
277 0 : int forceoverwrite=0;
278 0 : enum action act=ACTION_LIST;
279 0 : const char *backup=NULL;
280 0 : const char *backup2=NULL;
281 0 : char *restoreprefix=NULL;
282 0 : char *stripfrompath=NULL;
283 0 : const char *regex=NULL;
284 0 : const char *browsefile=NULL;
285 0 : char *browsedir=NULL;
286 0 : const char *conffile=config_default_path();
287 0 : const char *orig_client=NULL;
288 0 : const char *logfile=NULL;
289 : // The orig_client is the original client that the normal client
290 : // would like to restore from.
291 : #ifndef HAVE_WIN32
292 0 : int generate_ca_only=0;
293 : #endif
294 0 : int vss_restore=1;
295 0 : int test_confs=0;
296 : enum burp_mode mode;
297 :
298 0 : log_init(argv[0]);
299 : #ifndef HAVE_WIN32
300 0 : if(!strcmp(prog, "bedup"))
301 0 : return run_bedup(argc, argv);
302 0 : if(!strcmp(prog, "bsigs"))
303 0 : return run_bsigs(argc, argv);
304 0 : if(!strcmp(prog, "bsparse"))
305 0 : return run_bsparse(argc, argv);
306 : #endif
307 :
308 0 : while((option=getopt(argc, argv, "a:b:c:C:d:fFghil:nq:Qr:s:tvxjz:?"))!=-1)
309 : {
310 0 : switch(option)
311 : {
312 : case 'a':
313 0 : if(parse_action(&act, optarg)) goto end;
314 : break;
315 : case 'b':
316 : // The diff command may have two backups
317 : // specified.
318 0 : if(!backup2 && backup) backup2=optarg;
319 0 : if(!backup) backup=optarg;
320 : break;
321 : case 'c':
322 0 : conffile=optarg;
323 0 : break;
324 : case 'C':
325 0 : orig_client=optarg;
326 0 : break;
327 : case 'd':
328 0 : restoreprefix=optarg; // for restores
329 0 : browsedir=optarg; // for lists
330 0 : break;
331 : case 'f':
332 : forceoverwrite=1;
333 : break;
334 : case 'F':
335 0 : daemon=0;
336 0 : break;
337 : case 'g':
338 : #ifndef HAVE_WIN32
339 0 : generate_ca_only=1;
340 : #endif
341 0 : break;
342 : case 'i':
343 0 : cmd_print_all();
344 0 : ret=0;
345 0 : goto end;
346 : case 'l':
347 0 : logfile=optarg;
348 0 : break;
349 : case 'n':
350 0 : forking=0;
351 0 : break;
352 : case 'q':
353 0 : randomise=atoi(optarg);
354 0 : break;
355 : case 'Q':
356 0 : log_force_quiet();
357 0 : break;
358 : case 'r':
359 0 : regex=optarg;
360 0 : break;
361 : case 's':
362 0 : strip=atoi(optarg);
363 0 : break;
364 : case 'v':
365 0 : printf("%s-%s\n", progname(), PACKAGE_VERSION);
366 0 : ret=0;
367 0 : goto end;
368 : case 'x':
369 0 : vss_restore=0;
370 0 : break;
371 : case 't':
372 0 : test_confs=1;
373 0 : break;
374 : case 'z':
375 0 : browsefile=optarg;
376 0 : break;
377 : case 'h':
378 : case '?':
379 : default:
380 : usage();
381 : goto end;
382 : }
383 : }
384 0 : if(optind<argc)
385 : {
386 : usage();
387 : goto end;
388 : }
389 :
390 0 : if(act==ACTION_MONITOR)
391 : {
392 : // Try to output everything in JSON.
393 0 : log_set_json(1);
394 : // Need to do this so that processes reading stdout get the
395 : // result of the printfs of logp straight away.
396 0 : setvbuf(stdout, NULL, _IONBF, 0);
397 : }
398 :
399 0 : if(!(confs=confs_alloc()))
400 : goto end;
401 :
402 0 : if(reload(confs, conffile, 1))
403 : goto end;
404 :
405 : // Dry run to test config file syntax.
406 0 : if(test_confs)
407 : {
408 0 : ret=run_test_confs(confs, orig_client);
409 0 : goto end;
410 : }
411 :
412 0 : if(!backup) switch(act)
413 : {
414 : case ACTION_DELETE:
415 0 : logp("No backup specified for deletion.\n");
416 0 : goto end;
417 : case ACTION_RESTORE:
418 : case ACTION_VERIFY:
419 : case ACTION_DIFF:
420 : case ACTION_DIFF_LONG:
421 0 : logp("No backup specified. Using the most recent.\n");
422 0 : backup="0";
423 : default:
424 : break;
425 : }
426 0 : if(!backup2) switch(act)
427 : {
428 : case ACTION_DIFF:
429 : case ACTION_DIFF_LONG:
430 0 : logp("No second backup specified. Using file system scan.\n");
431 0 : backup2="n"; // For 'next'.
432 : default:
433 : break;
434 : }
435 :
436 : // The logfile option is only used for the status client stuff.
437 0 : if(logfile
438 0 : && (act!=ACTION_STATUS
439 0 : && act!=ACTION_STATUS_SNAPSHOT))
440 0 : logp("-l <logfile> option obsoleted\n");
441 :
442 0 : if(orig_client
443 0 : && *orig_client
444 0 : && set_string(confs[OPT_ORIG_CLIENT], orig_client))
445 : goto end;
446 :
447 : // The random delay needs to happen before the lock is got, otherwise
448 : // you would never be able to use burp by hand.
449 0 : if(randomise) set_int(confs[OPT_RANDOMISE], randomise);
450 0 : mode=get_e_burp_mode(confs[OPT_BURP_MODE]);
451 0 : if(mode==BURP_MODE_CLIENT
452 0 : && (act==ACTION_BACKUP_TIMED || act==ACTION_TIMER_CHECK))
453 0 : random_delay(confs);
454 :
455 0 : if(mode==BURP_MODE_SERVER)
456 : {
457 0 : switch(act)
458 : {
459 : case ACTION_CHAMP_CHOOSER:
460 : // Need to run without getting the lock.
461 : break;
462 : default:
463 0 : if(!(lock=get_prog_lock(confs)))
464 : goto end;
465 : break;
466 : }
467 : }
468 0 : else if(mode==BURP_MODE_CLIENT)
469 : {
470 0 : switch(act)
471 : {
472 : case ACTION_BACKUP:
473 : case ACTION_BACKUP_TIMED:
474 : case ACTION_TIMER_CHECK:
475 : // Need to get the lock.
476 0 : if(!(lock=get_prog_lock(confs)))
477 : goto end;
478 : break;
479 : default:
480 : break;
481 : }
482 : }
483 :
484 : // Change privileges after having got the lock, for convenience.
485 0 : if(chuser_and_or_chgrp(
486 0 : get_string(confs[OPT_USER]), get_string(confs[OPT_GROUP])))
487 : return -1;
488 :
489 0 : set_int(confs[OPT_OVERWRITE], forceoverwrite);
490 0 : set_int(confs[OPT_STRIP], strip);
491 0 : set_int(confs[OPT_FORK], forking);
492 0 : set_int(confs[OPT_DAEMON], daemon);
493 :
494 0 : strip_trailing_slashes(&restoreprefix);
495 0 : strip_trailing_slashes(&browsedir);
496 0 : if(replace_conf_str(confs[OPT_BACKUP], backup)
497 0 : || replace_conf_str(confs[OPT_BACKUP2], backup2)
498 0 : || replace_conf_str(confs[OPT_RESTOREPREFIX], restoreprefix)
499 0 : || replace_conf_str(confs[OPT_STRIP_FROM_PATH], stripfrompath)
500 0 : || replace_conf_str(confs[OPT_REGEX], regex)
501 0 : || replace_conf_str(confs[OPT_BROWSEFILE], browsefile)
502 0 : || replace_conf_str(confs[OPT_BROWSEDIR], browsedir)
503 0 : || replace_conf_str(confs[OPT_MONITOR_LOGFILE], logfile))
504 : goto end;
505 :
506 0 : base64_init();
507 0 : hexmap_init();
508 :
509 0 : if(mode==BURP_MODE_SERVER)
510 : {
511 : #ifdef HAVE_WIN32
512 : logp("Sorry, server mode is not implemented for Windows.\n");
513 : #else
514 0 : ret=server_modes(act,
515 : conffile, lock, generate_ca_only, confs);
516 : #endif
517 : }
518 : else
519 : {
520 0 : ret=client(confs, act, vss_restore);
521 : }
522 :
523 : end:
524 0 : lock_release(lock);
525 0 : lock_free(&lock);
526 0 : confs_free(&confs);
527 0 : return ret;
528 : }
529 :
530 : #ifndef UTEST
531 : int main(int argc, char *argv[])
532 : {
533 : return real_main(argc, argv);
534 : }
535 : #endif
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