2 * Bacula Catalog Database routines written specifically
3 * for Bacula. Note, these routines are VERY dumb and
4 * do not provide all the functionality of an SQL database.
5 * The purpose of these routines is to ensure that Bacula
6 * can limp along if no real database is loaded on the
9 * Kern Sibbald, January MMI
17 Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
19 This program is free software; you can redistribute it and/or
20 modify it under the terms of the GNU General Public License as
21 published by the Free Software Foundation; either version 2 of
22 the License, or (at your option) any later version.
24 This program is distributed in the hope that it will be useful,
25 but WITHOUT ANY WARRANTY; without even the implied warranty of
26 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 General Public License for more details.
29 You should have received a copy of the GNU General Public
30 License along with this program; if not, write to the Free
31 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
37 /* The following is necessary so that we do not include
38 * the dummy external definition of DB.
40 #define __SQL_C /* indicate that this is sql.c */
47 /* Forward referenced functions */
49 extern char *working_directory;
51 /* List of open databases */
52 static BQUEUE db_list = {&db_list, &db_list};
53 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
55 /* -----------------------------------------------------------------------
57 * Bacula specific defines and subroutines
59 * -----------------------------------------------------------------------
63 #define DB_CONTROL_FILENAME "control.db"
64 #define DB_JOBS_FILENAME "jobs.db"
65 #define DB_POOLS_FILENAME "pools.db"
66 #define DB_MEDIA_FILENAME "media.db"
67 #define DB_JOBMEDIA_FILENAME "jobmedia.db"
68 #define DB_CLIENT_FILENAME "client.db"
69 #define DB_FILESET_FILENAME "fileset.db"
71 static char *make_filename(B_DB *mdb, char *name)
75 dbf = (char *) get_pool_memory(PM_FNAME);
76 if (working_directory[strlen(working_directory)-1] == '/') {
81 Mmsg(&dbf, "%s%c%s-%s", working_directory, sep, mdb->db_name, name);
85 int bdb_write_control_file(B_DB *mdb)
87 mdb->control.time = time(NULL);
88 lseek(mdb->cfd, 0, SEEK_SET);
89 if (write(mdb->cfd, &mdb->control, sizeof(mdb->control)) != sizeof(mdb->control)) {
90 Mmsg1(&mdb->errmsg, "Error writing control file. ERR=%s\n", strerror(errno));
91 Emsg0(M_FATAL, 0, mdb->errmsg);
98 * Initialize database data structure. In principal this should
99 * never have errors, or it is really fatal.
102 db_init_database(char *db_name, char *db_user, char *db_password)
105 P(mutex); /* lock DB queue */
106 /* Look to see if DB already open */
107 for (mdb=NULL; (mdb=(B_DB *)qnext(&db_list, &mdb->bq)); ) {
108 if (strcmp(mdb->db_name, db_name) == 0) {
109 Dmsg2(200, "DB REopen %d %s\n", mdb->ref_count, db_name);
112 return mdb; /* already open */
115 Dmsg0(200, "db_open first time\n");
116 mdb = (B_DB *) malloc(sizeof(B_DB));
117 memset(mdb, 0, sizeof(B_DB));
118 Dmsg0(200, "DB struct init\n");
119 mdb->db_name = bstrdup(db_name);
120 mdb->errmsg = (char *) get_pool_memory(PM_EMSG);
122 mdb->cmd = (char *) get_pool_memory(PM_EMSG); /* command buffer */
124 qinsert(&db_list, &mdb->bq); /* put db in list */
125 Dmsg0(200, "Done db_open_database()\n");
132 * Now actually open the database. This can generate errors,
133 * which are returned in the errmsg
136 db_open_database(B_DB *mdb)
143 Dmsg1(200, "db_open_database() %s\n", mdb->db_name);
146 if ((errstat = pthread_mutex_init(&(mdb->mutex), NULL)) != 0) {
147 Mmsg1(&mdb->errmsg, "Unable to initialize DB mutex. ERR=%s\n", strerror(errstat));
151 P(mdb->mutex); /* test it once */
154 Dmsg0(200, "make_filename\n");
155 dbf = make_filename(mdb, DB_CONTROL_FILENAME);
156 mdb->cfd = open(dbf, O_CREAT|O_RDWR, 0600);
159 Mmsg2(&mdb->errmsg, "Unable to open Catalog DB control file %s: ERR=%s\n",
160 dbf, strerror(errno));
164 Dmsg0(200, "DB open\n");
165 /* See if the file was previously written */
166 filend = lseek(mdb->cfd, 0, SEEK_END);
167 if (filend == 0) { /* No, initialize everything */
168 Dmsg0(200, "Init DB files\n");
169 memset(&mdb->control, 0, sizeof(mdb->control));
170 mdb->control.bdb_version = BDB_VERSION;
171 bdb_write_control_file(mdb);
173 /* Create Jobs File */
174 dbf = make_filename(mdb, DB_JOBS_FILENAME);
175 fd = open(dbf, O_CREAT|O_RDWR, 0600);
179 /* Create Pools File */
180 dbf = make_filename(mdb, DB_POOLS_FILENAME);
181 fd = open(dbf, O_CREAT|O_RDWR, 0600);
185 /* Create Media File */
186 dbf = make_filename(mdb, DB_MEDIA_FILENAME);
187 fd = open(dbf, O_CREAT|O_RDWR, 0600);
191 /* Create JobMedia File */
192 dbf = make_filename(mdb, DB_JOBMEDIA_FILENAME);
193 fd = open(dbf, O_CREAT|O_RDWR, 0600);
197 /* Create Client File */
198 dbf = make_filename(mdb, DB_CLIENT_FILENAME);
199 fd = open(dbf, O_CREAT|O_RDWR, 0600);
203 /* Create FileSet File */
204 dbf = make_filename(mdb, DB_FILESET_FILENAME);
205 fd = open(dbf, O_CREAT|O_RDWR, 0600);
210 Dmsg0(200, "Read control file\n");
212 lseek(mdb->cfd, 0, SEEK_SET); /* seek to begining of control file */
213 if (read(mdb->cfd, &mdb->control, sizeof(mdb->control)) != sizeof(mdb->control)) {
214 Mmsg1(&mdb->errmsg, "Error reading catalog DB control file. ERR=%s\n", strerror(errno));
216 } else if (mdb->control.bdb_version != BDB_VERSION) {
217 Mmsg2(&mdb->errmsg, "Error, catalog DB control file wrong version. \
219 Please reinitialize the working directory.\n",
220 BDB_VERSION, mdb->control.bdb_version);
231 void db_close_database(B_DB *mdb)
235 if (mdb->ref_count == 0) {
237 /* close file descriptors */
249 fclose(mdb->mediafd);
251 if (mdb->jobmediafd) {
252 fclose(mdb->jobmediafd);
255 fclose(mdb->clientfd);
257 if (mdb->filesetfd) {
258 fclose(mdb->filesetfd);
260 pthread_mutex_destroy(&mdb->mutex);
261 free_pool_memory(mdb->errmsg);
262 free_pool_memory(mdb->cmd);
269 void db_escape_string(char *snew, char *old, int len)
274 char *db_strerror(B_DB *mdb)
279 int db_sql_query(B_DB *mdb, char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
285 * Open the Jobs file for reading/writing
287 int bdb_open_jobs_file(B_DB *mdb)
292 dbf = make_filename(mdb, DB_JOBS_FILENAME);
293 mdb->jobfd = fopen(dbf, "r+");
295 Mmsg2(&mdb->errmsg, "Error opening DB Jobs file %s: ERR=%s\n",
296 dbf, strerror(errno));
297 Emsg0(M_FATAL, 0, mdb->errmsg);
307 * Open the JobMedia file for reading/writing
309 int bdb_open_jobmedia_file(B_DB *mdb)
313 if (!mdb->jobmediafd) {
314 dbf = make_filename(mdb, DB_JOBMEDIA_FILENAME);
315 mdb->jobmediafd = fopen(dbf, "r+");
316 if (!mdb->jobmediafd) {
317 Mmsg2(&mdb->errmsg, "Error opening DB JobMedia file %s: ERR=%s\n",
318 dbf, strerror(errno));
319 Emsg0(M_FATAL, 0, mdb->errmsg);
330 * Open the Pools file for reading/writing
332 int bdb_open_pools_file(B_DB *mdb)
337 dbf = make_filename(mdb, DB_POOLS_FILENAME);
338 mdb->poolfd = fopen(dbf, "r+");
340 Mmsg2(&mdb->errmsg, "Error opening DB Pools file %s: ERR=%s\n",
341 dbf, strerror(errno));
342 Emsg0(M_FATAL, 0, mdb->errmsg);
346 Dmsg1(200, "Opened pool file %s\n", dbf);
353 * Open the Client file for reading/writing
355 int bdb_open_client_file(B_DB *mdb)
359 if (!mdb->clientfd) {
360 dbf = make_filename(mdb, DB_CLIENT_FILENAME);
361 mdb->clientfd = fopen(dbf, "r+");
362 if (!mdb->clientfd) {
363 Mmsg2(&mdb->errmsg, "Error opening DB Clients file %s: ERR=%s\n",
364 dbf, strerror(errno));
365 Emsg0(M_FATAL, 0, mdb->errmsg);
375 * Open the FileSet file for reading/writing
377 int bdb_open_fileset_file(B_DB *mdb)
381 if (!mdb->filesetfd) {
382 dbf = make_filename(mdb, DB_CLIENT_FILENAME);
383 mdb->filesetfd = fopen(dbf, "r+");
384 if (!mdb->filesetfd) {
385 Mmsg2(&mdb->errmsg, "Error opening DB FileSet file %s: ERR=%s\n",
386 dbf, strerror(errno));
387 Emsg0(M_FATAL, 0, mdb->errmsg);
399 * Open the Media file for reading/writing
401 int bdb_open_media_file(B_DB *mdb)
406 dbf = make_filename(mdb, DB_MEDIA_FILENAME);
407 mdb->mediafd = fopen(dbf, "r+");
409 Mmsg2(&mdb->errmsg, "Error opening DB Media file %s: ERR=%s\n",
410 dbf, strerror(errno));
419 #endif /* HAVE_BACULA_DB */