cdr/cdr_adaptive_odbc.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 2007, Tilghman Lesher
   5  *
   6  * Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
   7  *
   8  * See http://www.asterisk.org for more information about
   9  * the Asterisk project. Please do not directly contact
  10  * any of the maintainers of this project for assistance;
  11  * the project provides a web site, mailing lists and IRC
  12  * channels for your use.
  13  *
  14  * This program is free software, distributed under the terms of
  15  * the GNU General Public License Version 2. See the LICENSE file
  16  * at the top of the source tree.
  17  */
  18
  19 /*! \file
  20  *
  21  * \brief Adaptive ODBC CDR backend
  22  *
  23  * \author Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
  24  * \ingroup cdr_drivers
  25  */
  26
  27 /*** MODULEINFO
  28         <depend>odbc</depend>
  29         <use>unixodbc</use>
  30         <use>iodbc</use>
  31  ***/
  32
  33 #include "asterisk.h"
  34
  35 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  36
  37 #include <sys/types.h>
  38 #include <time.h>
  39
  40 #include <sql.h>
  41 #include <sqlext.h>
  42 #include <sqltypes.h>
  43
  44 #include "asterisk/config.h"
  45 #include "asterisk/channel.h"
  46 #include "asterisk/lock.h"
  47 #include "asterisk/linkedlists.h"
  48 #include "asterisk/res_odbc.h"
  49 #include "asterisk/cdr.h"
  50 #include "asterisk/module.h"
  51
  52 #define CONFIG  "cdr_adaptive_odbc.conf"
  53
  54 static char *name = "Adaptive ODBC";
  55 /* Optimization to reduce number of memory allocations */
  56 static int maxsize = 512, maxsize2 = 512;
  57
  58 struct columns {
  59         char *name;
  60         char *cdrname;
  61         char *filtervalue;
  62         SQLSMALLINT type;
  63         SQLINTEGER size;
  64         SQLSMALLINT decimals;
  65         SQLSMALLINT radix;
  66         SQLSMALLINT nullable;
  67         SQLINTEGER octetlen;
  68         AST_LIST_ENTRY(columns) list;
  69 };
  70
  71 struct tables {
  72         char *connection;
  73         char *table;
  74         unsigned int usegmtime:1;
  75         AST_LIST_HEAD_NOLOCK(odbc_columns, columns) columns;
  76         AST_RWLIST_ENTRY(tables) list;
  77 };
  78
  79 static AST_RWLIST_HEAD_STATIC(odbc_tables, tables);
  80
  81 static int load_config(void)
  82 {
  83         struct ast_config *cfg;
  84         struct ast_variable *var;
  85         const char *tmp, *catg;
  86         struct tables *tableptr;
  87         struct columns *entry;
  88         struct odbc_obj *obj;
  89         char columnname[80];
  90         char connection[40];
  91         char table[40];
  92         int lenconnection, lentable, usegmtime = 0;
  93         SQLLEN sqlptr;
  94         int res = 0;
  95         SQLHSTMT stmt = NULL;
  96         struct ast_flags config_flags = { 0 }; /* Part of our config comes from the database */
  97
  98         cfg = ast_config_load(CONFIG, config_flags);
  99         if (!cfg) {
 100                 ast_log(LOG_WARNING, "Unable to load " CONFIG ".  No adaptive ODBC CDRs.\n");
 101                 return -1;
 102         }
 103
 104         for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
 105                 var = ast_variable_browse(cfg, catg);
 106                 if (!var)
 107                         continue;
 108
 109                 if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "connection"))) {
 110                         ast_log(LOG_WARNING, "No connection parameter found in '%s'.  Skipping.\n", catg);
 111                         continue;
 112                 }
 113                 ast_copy_string(connection, tmp, sizeof(connection));
 114                 lenconnection = strlen(connection);
 115
 116                 if (!ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "usegmtime"))) {
 117                         usegmtime = ast_true(tmp);
 118                 }
 119
 120                 /* When loading, we want to be sure we can connect. */
 121                 obj = ast_odbc_request_obj(connection, 1);
 122                 if (!obj) {
 123                         ast_log(LOG_WARNING, "No such connection '%s' in the '%s' section of " CONFIG ".  Check res_odbc.conf.\n", connection, catg);
 124                         continue;
 125                 }
 126
 127                 if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "table"))) {
 128                         ast_log(LOG_NOTICE, "No table name found.  Assuming 'cdr'.\n");
 129                         tmp = "cdr";
 130                 }
 131                 ast_copy_string(table, tmp, sizeof(table));
 132                 lentable = strlen(table);
 133
 134                 res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
 135                 if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 136                         ast_log(LOG_WARNING, "SQL Alloc Handle failed on connection '%s'!\n", connection);
 137                         ast_odbc_release_obj(obj);
 138                         continue;
 139                 }
 140
 141                 res = SQLColumns(stmt, NULL, 0, NULL, 0, (unsigned char *)table, SQL_NTS, (unsigned char *)"%", SQL_NTS);
 142                 if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 143                         ast_log(LOG_ERROR, "Unable to query database columns on connection '%s'.  Skipping.\n", connection);
 144                         ast_odbc_release_obj(obj);
 145                         continue;
 146                 }
 147
 148                 tableptr = ast_calloc(sizeof(char), sizeof(*tableptr) + lenconnection + 1 + lentable + 1);
 149                 if (!tableptr) {
 150                         ast_log(LOG_ERROR, "Out of memory creating entry for table '%s' on connection '%s'\n", table, connection);
 151                         ast_odbc_release_obj(obj);
 152                         res = -1;
 153                         break;
 154                 }
 155
 156                 tableptr->usegmtime = usegmtime;
 157                 tableptr->connection = (char *)tableptr + sizeof(*tableptr);
 158                 tableptr->table = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1;
 159                 ast_copy_string(tableptr->connection, connection, lenconnection + 1);
 160                 ast_copy_string(tableptr->table, table, lentable + 1);
 161
 162                 ast_verb(3, "Found adaptive CDR table %s@%s.\n", tableptr->table, tableptr->connection);
 163
 164                 /* Check for filters first */
 165                 for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
 166                         if (strncmp(var->name, "filter", 6) == 0) {
 167                                 char *cdrvar = ast_strdupa(var->name + 6);
 168                                 cdrvar = ast_strip(cdrvar);
 169                                 ast_verb(3, "Found filter %s for cdr variable %s in %s@%s\n", var->value, cdrvar, tableptr->table, tableptr->connection);
 170
 171                                 entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(cdrvar) + 1 + strlen(var->value) + 1);
 172                                 if (!entry) {
 173                                         ast_log(LOG_ERROR, "Out of memory creating filter entry for CDR variable '%s' in table '%s' on connection '%s'\n", cdrvar, table, connection);
 174                                         res = -1;
 175                                         break;
 176                                 }
 177
 178                                 /* NULL column entry means this isn't a column in the database */
 179                                 entry->name = NULL;
 180                                 entry->cdrname = (char *)entry + sizeof(*entry);
 181                                 entry->filtervalue = (char *)entry + sizeof(*entry) + strlen(cdrvar) + 1;
 182                                 strcpy(entry->cdrname, cdrvar);
 183                                 strcpy(entry->filtervalue, var->value);
 184
 185                                 AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
 186                         }
 187                 }
 188
 189                 while ((res = SQLFetch(stmt)) != SQL_NO_DATA && res != SQL_ERROR) {
 190                         char *cdrvar = "";
 191
 192                         SQLGetData(stmt,  4, SQL_C_CHAR, columnname, sizeof(columnname), &sqlptr);
 193
 194                         /* Is there an alias for this column? */
 195
 196                         /* NOTE: This seems like a non-optimal parse method, but I'm going
 197                          * for user configuration readability, rather than fast parsing. We
 198                          * really don't parse this file all that often, anyway.
 199                          */
 200                         for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
 201                                 if (strncmp(var->name, "alias", 5) == 0 && strcasecmp(var->value, columnname) == 0) {
 202                                         char *alias = ast_strdupa(var->name + 5);
 203                                         cdrvar = ast_strip(alias);
 204                                         ast_verb(3, "Found alias %s for column %s in %s@%s\n", cdrvar, columnname, tableptr->table, tableptr->connection);
 205                                         break;
 206                                 }
 207                         }
 208
 209                         entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(columnname) + 1 + strlen(cdrvar) + 1);
 210                         if (!entry) {
 211                                 ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s' on connection '%s'\n", columnname, table, connection);
 212                                 res = -1;
 213                                 break;
 214                         }
 215                         entry->name = (char *)entry + sizeof(*entry);
 216                         strcpy(entry->name, columnname);
 217
 218                         if (!ast_strlen_zero(cdrvar)) {
 219                                 entry->cdrname = entry->name + strlen(columnname) + 1;
 220                                 strcpy(entry->cdrname, cdrvar);
 221                         } else /* Point to same place as the column name */
 222                                 entry->cdrname = (char *)entry + sizeof(*entry);
 223
 224                         SQLGetData(stmt,  5, SQL_C_SHORT, &entry->type, sizeof(entry->type), NULL);
 225                         SQLGetData(stmt,  7, SQL_C_LONG, &entry->size, sizeof(entry->size), NULL);
 226                         SQLGetData(stmt,  9, SQL_C_SHORT, &entry->decimals, sizeof(entry->decimals), NULL);
 227                         SQLGetData(stmt, 10, SQL_C_SHORT, &entry->radix, sizeof(entry->radix), NULL);
 228                         SQLGetData(stmt, 11, SQL_C_SHORT, &entry->nullable, sizeof(entry->nullable), NULL);
 229                         SQLGetData(stmt, 16, SQL_C_LONG, &entry->octetlen, sizeof(entry->octetlen), NULL);
 230
 231                         /* Specification states that the octenlen should be the maximum number of bytes
 232                          * returned in a char or binary column, but it seems that some drivers just set
 233                          * it to NULL. (Bad Postgres! No biscuit!) */
 234                         if (entry->octetlen == 0)
 235                                 entry->octetlen = entry->size;
 236
 237                         ast_verb(10, "Found %s column with type %hd with len %ld, octetlen %ld, and numlen (%hd,%hd)\n", entry->name, entry->type, (long) entry->size, (long) entry->octetlen, entry->decimals, entry->radix);
 238                         /* Insert column info into column list */
 239                         AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
 240                         res = 0;
 241                 }
 242
 243                 SQLFreeHandle(SQL_HANDLE_STMT, stmt);
 244                 ast_odbc_release_obj(obj);
 245
 246                 if (AST_LIST_FIRST(&(tableptr->columns)))
 247                         AST_RWLIST_INSERT_TAIL(&odbc_tables, tableptr, list);
 248                 else
 249                         ast_free(tableptr);
 250         }
 251         return res;
 252 }
 253
 254 static int free_config(void)
 255 {
 256         struct tables *table;
 257         struct columns *entry;
 258         while ((table = AST_RWLIST_REMOVE_HEAD(&odbc_tables, list))) {
 259                 while ((entry = AST_LIST_REMOVE_HEAD(&(table->columns), list))) {
 260                         ast_free(entry);
 261                 }
 262                 ast_free(table);
 263         }
 264         return 0;
 265 }
 266
 267 static SQLHSTMT generic_prepare(struct odbc_obj *obj, void *data)
 268 {
 269         int res, i;
 270         char *sql = data;
 271         SQLHSTMT stmt;
 272         SQLINTEGER nativeerror = 0, numfields = 0;
 273         SQLSMALLINT diagbytes = 0;
 274         unsigned char state[10], diagnostic[256];
 275
 276         res = SQLAllocHandle (SQL_HANDLE_STMT, obj->con, &stmt);
 277         if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 278                 ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
 279                 return NULL;
 280         }
 281
 282         res = SQLPrepare(stmt, (unsigned char *)sql, SQL_NTS);
 283         if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 284                 ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", sql);
 285                 SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
 286                 for (i = 0; i < numfields; i++) {
 287                         SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
 288                         ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
 289                         if (i > 10) {
 290                                 ast_log(LOG_WARNING, "Oh, that was good.  There are really %d diagnostics?\n", (int)numfields);
 291                                 break;
 292                         }
 293                 }
 294                 SQLFreeHandle (SQL_HANDLE_STMT, stmt);
 295                 return NULL;
 296         }
 297
 298         return stmt;
 299 }
 300
 301 #define LENGTHEN_BUF1(size)                                                                                                             \
 302                         do {                                                                                                                            \
 303                                 /* Lengthen buffer, if necessary */                                                             \
 304                                 if (sql->used + size + 1 > sql->len) {                          \
 305                                         if (ast_str_make_space(&sql, ((sql->len + size + 1) / 512 + 1) * 512) != 0) { \
 306                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
 307                                                 ast_free(sql);                                                                                  \
 308                                                 ast_free(sql2);                                                                                 \
 309                                                 AST_RWLIST_UNLOCK(&odbc_tables);                                                \
 310                                                 return -1;                                                                                              \
 311                                         }                                                                                                                       \
 312                                 }                                                                                                                               \
 313                         } while (0)
 314
 315 #define LENGTHEN_BUF2(size)                                                                                                             \
 316                         do {                                                                                                                            \
 317                                 if (sql2->used + size + 1 > sql2->len) {                        \
 318                                         if (ast_str_make_space(&sql2, ((sql2->len + size + 3) / 512 + 1) * 512) != 0) { \
 319                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
 320                                                 ast_free(sql);                                                                                  \
 321                                                 ast_free(sql2);                                                                                 \
 322                                                 AST_RWLIST_UNLOCK(&odbc_tables);                                                \
 323                                                 return -1;                                                                                              \
 324                                         }                                                                                                                       \
 325                                 }                                                                                                                               \
 326                         } while (0)
 327
 328 static int odbc_log(struct ast_cdr *cdr)
 329 {
 330         struct tables *tableptr;
 331         struct columns *entry;
 332         struct odbc_obj *obj;
 333         struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
 334         char *tmp;
 335         char colbuf[1024], *colptr;
 336         SQLHSTMT stmt = NULL;
 337         SQLLEN rows = 0;
 338
 339         if (!sql || !sql2) {
 340                 if (sql)
 341                         ast_free(sql);
 342                 if (sql2)
 343                         ast_free(sql2);
 344                 return -1;
 345         }
 346
 347         if (AST_RWLIST_RDLOCK(&odbc_tables)) {
 348                 ast_log(LOG_ERROR, "Unable to lock table list.  Insert CDR(s) failed.\n");
 349                 ast_free(sql);
 350                 ast_free(sql2);
 351                 return -1;
 352         }
 353
 354         AST_LIST_TRAVERSE(&odbc_tables, tableptr, list) {
 355                 ast_str_set(&sql, 0, "INSERT INTO %s (", tableptr->table);
 356                 ast_str_set(&sql2, 0, " VALUES (");
 357
 358                 /* No need to check the connection now; we'll handle any failure in prepare_and_execute */
 359                 if (!(obj = ast_odbc_request_obj(tableptr->connection, 0))) {
 360                         ast_log(LOG_WARNING, "cdr_adaptive_odbc: Unable to retrieve database handle for '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, sql->str);
 361                         continue;
 362                 }
 363
 364                 AST_LIST_TRAVERSE(&(tableptr->columns), entry, list) {
 365                         int datefield = 0;
 366                         if (strcasecmp(entry->cdrname, "start") == 0) {
 367                                 datefield = 1;
 368                         } else if (strcasecmp(entry->cdrname, "answer") == 0) {
 369                                 datefield = 2;
 370                         } else if (strcasecmp(entry->cdrname, "end") == 0) {
 371                                 datefield = 3;
 372                         }
 373
 374                         /* Check if we have a similarly named variable */
 375                         if (datefield && tableptr->usegmtime) {
 376                                 struct timeval date_tv = (datefield == 1) ? cdr->start : (datefield == 2) ? cdr->answer : cdr->end;
 377                                 struct ast_tm tm = { 0, };
 378                                 ast_localtime(&date_tv, &tm, "UTC");
 379                                 ast_strftime(colbuf, sizeof(colbuf), "%Y-%m-%d %H:%M:%S", &tm);
 380                         } else {
 381                                 ast_cdr_getvar(cdr, entry->cdrname, &colptr, colbuf, sizeof(colbuf), 0, datefield ? 0 : 1);
 382                         }
 383
 384                         if (colptr) {
 385                                 /* Check first if the column filters this entry.  Note that this
 386                                  * is very specifically NOT ast_strlen_zero(), because the filter
 387                                  * could legitimately specify that the field is blank, which is
 388                                  * different from the field being unspecified (NULL). */
 389                                 if (entry->filtervalue && strcasecmp(colptr, entry->filtervalue) != 0) {
 390                                         ast_verb(4, "CDR column '%s' with value '%s' does not match filter of"
 391                                                 " '%s'.  Cancelling this CDR.\n",
 392                                                 entry->cdrname, colptr, entry->filtervalue);
 393                                         goto early_release;
 394                                 }
 395
 396                                 /* Only a filter? */
 397                                 if (ast_strlen_zero(entry->name))
 398                                         continue;
 399
 400                                 LENGTHEN_BUF1(strlen(entry->name));
 401
 402                                 switch (entry->type) {
 403                                 case SQL_CHAR:
 404                                 case SQL_VARCHAR:
 405                                 case SQL_LONGVARCHAR:
 406                                 case SQL_BINARY:
 407                                 case SQL_VARBINARY:
 408                                 case SQL_LONGVARBINARY:
 409                                 case SQL_GUID:
 410                                         /* For these two field names, get the rendered form, instead of the raw
 411                                          * form (but only when we're dealing with a character-based field).
 412                                          */
 413                                         if (strcasecmp(entry->name, "disposition") == 0)
 414                                                 ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
 415                                         else if (strcasecmp(entry->name, "amaflags") == 0)
 416                                                 ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
 417
 418                                         /* Truncate too-long fields */
 419                                         if (entry->type != SQL_GUID) {
 420                                                 if (strlen(colptr) > entry->octetlen)
 421                                                         colptr[entry->octetlen] = '\0';
 422                                         }
 423
 424                                         ast_str_append(&sql, 0, "%s,", entry->name);
 425                                         LENGTHEN_BUF2(strlen(colptr));
 426
 427                                         /* Encode value, with escaping */
 428                                         ast_str_append(&sql2, 0, "'");
 429                                         for (tmp = colptr; *tmp; tmp++) {
 430                                                 if (*tmp == '\'') {
 431                                                         ast_str_append(&sql2, 0, "''");
 432                                                 } else if (*tmp == '\\' && ast_odbc_backslash_is_escape(obj)) {
 433                                                         ast_str_append(&sql2, 0, "\\\\");
 434                                                 } else {
 435                                                         ast_str_append(&sql2, 0, "%c", *tmp);
 436                                                 }
 437                                         }
 438                                         ast_str_append(&sql2, 0, "',");
 439                                         break;
 440                                 case SQL_TYPE_DATE:
 441                                         {
 442                                                 int year = 0, month = 0, day = 0;
 443                                                 if (sscanf(colptr, "%d-%d-%d", &year, &month, &day) != 3 || year <= 0 ||
 444                                                         month <= 0 || month > 12 || day < 0 || day > 31 ||
 445                                                         ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
 446                                                         (month == 2 && year % 400 == 0 && day > 29) ||
 447                                                         (month == 2 && year % 100 == 0 && day > 28) ||
 448                                                         (month == 2 && year % 4 == 0 && day > 29) ||
 449                                                         (month == 2 && year % 4 != 0 && day > 28)) {
 450                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid date ('%s').\n", entry->name, colptr);
 451                                                         break;
 452                                                 }
 453
 454                                                 if (year > 0 && year < 100)
 455                                                         year += 2000;
 456
 457                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 458                                                 LENGTHEN_BUF2(17);
 459                                                 ast_str_append(&sql2, 0, "{ d '%04d-%02d-%02d' },", year, month, day);
 460                                         }
 461                                         break;
 462                                 case SQL_TYPE_TIME:
 463                                         {
 464                                                 int hour = 0, minute = 0, second = 0;
 465                                                 int count = sscanf(colptr, "%d:%d:%d", &hour, &minute, &second);
 466
 467                                                 if ((count != 2 && count != 3) || hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
 468                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid time ('%s').\n", entry->name, colptr);
 469                                                         break;
 470                                                 }
 471
 472                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 473                                                 LENGTHEN_BUF2(15);
 474                                                 ast_str_append(&sql2, 0, "{ t '%02d:%02d:%02d' },", hour, minute, second);
 475                                         }
 476                                         break;
 477                                 case SQL_TYPE_TIMESTAMP:
 478                                 case SQL_TIMESTAMP:
 479                                         {
 480                                                 int year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
 481                                                 int count = sscanf(colptr, "%d-%d-%d %d:%d:%d", &year, &month, &day, &hour, &minute, &second);
 482
 483                                                 if ((count != 3 && count != 5 && count != 6) || year <= 0 ||
 484                                                         month <= 0 || month > 12 || day < 0 || day > 31 ||
 485                                                         ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
 486                                                         (month == 2 && year % 400 == 0 && day > 29) ||
 487                                                         (month == 2 && year % 100 == 0 && day > 28) ||
 488                                                         (month == 2 && year % 4 == 0 && day > 29) ||
 489                                                         (month == 2 && year % 4 != 0 && day > 28) ||
 490                                                         hour > 23 || minute > 59 || second > 59 || hour < 0 || minute < 0 || second < 0) {
 491                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid timestamp ('%s').\n", entry->name, colptr);
 492                                                         break;
 493                                                 }
 494
 495                                                 if (year > 0 && year < 100)
 496                                                         year += 2000;
 497
 498                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 499                                                 LENGTHEN_BUF2(26);
 500                                                 ast_str_append(&sql2, 0, "{ ts '%04d-%02d-%02d %02d:%02d:%02d' },", year, month, day, hour, minute, second);
 501                                         }
 502                                         break;
 503                                 case SQL_INTEGER:
 504                                         {
 505                                                 int integer = 0;
 506                                                 if (sscanf(colptr, "%d", &integer) != 1) {
 507                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 508                                                         break;
 509                                                 }
 510
 511                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 512                                                 LENGTHEN_BUF2(12);
 513                                                 ast_str_append(&sql2, 0, "%d,", integer);
 514                                         }
 515                                         break;
 516                                 case SQL_BIGINT:
 517                                         {
 518                                                 long long integer = 0;
 519                                                 if (sscanf(colptr, "%lld", &integer) != 1) {
 520                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 521                                                         break;
 522                                                 }
 523
 524                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 525                                                 LENGTHEN_BUF2(24);
 526                                                 ast_str_append(&sql2, 0, "%lld,", integer);
 527                                         }
 528                                         break;
 529                                 case SQL_SMALLINT:
 530                                         {
 531                                                 short integer = 0;
 532                                                 if (sscanf(colptr, "%hd", &integer) != 1) {
 533                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 534                                                         break;
 535                                                 }
 536
 537                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 538                                                 LENGTHEN_BUF2(6);
 539                                                 ast_str_append(&sql2, 0, "%d,", integer);
 540                                         }
 541                                         break;
 542                                 case SQL_TINYINT:
 543                                         {
 544                                                 char integer = 0;
 545                                                 if (sscanf(colptr, "%hhd", &integer) != 1) {
 546                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 547                                                         break;
 548                                                 }
 549
 550                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 551                                                 LENGTHEN_BUF2(4);
 552                                                 ast_str_append(&sql2, 0, "%d,", integer);
 553                                         }
 554                                         break;
 555                                 case SQL_BIT:
 556                                         {
 557                                                 char integer = 0;
 558                                                 if (sscanf(colptr, "%hhd", &integer) != 1) {
 559                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 560                                                         break;
 561                                                 }
 562                                                 if (integer != 0)
 563                                                         integer = 1;
 564
 565                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 566                                                 LENGTHEN_BUF2(2);
 567                                                 ast_str_append(&sql2, 0, "%d,", integer);
 568                                         }
 569                                         break;
 570                                 case SQL_NUMERIC:
 571                                 case SQL_DECIMAL:
 572                                         {
 573                                                 double number = 0.0;
 574                                                 if (sscanf(colptr, "%lf", &number) != 1) {
 575                                                         ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
 576                                                         break;
 577                                                 }
 578
 579                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 580                                                 LENGTHEN_BUF2(entry->decimals);
 581                                                 ast_str_append(&sql2, 0, "%*.*lf,", entry->decimals, entry->radix, number);
 582                                         }
 583                                         break;
 584                                 case SQL_FLOAT:
 585                                 case SQL_REAL:
 586                                 case SQL_DOUBLE:
 587                                         {
 588                                                 double number = 0.0;
 589                                                 if (sscanf(colptr, "%lf", &number) != 1) {
 590                                                         ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
 591                                                         break;
 592                                                 }
 593
 594                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 595                                                 LENGTHEN_BUF2(entry->decimals);
 596                                                 ast_str_append(&sql2, 0, "%lf,", number);
 597                                         }
 598                                         break;
 599                                 default:
 600                                         ast_log(LOG_WARNING, "Column type %d (field '%s:%s:%s') is unsupported at this time.\n", entry->type, tableptr->connection, tableptr->table, entry->name);
 601                                 }
 602                         }
 603                 }
 604
 605                 /* Concatenate the two constructed buffers */
 606                 LENGTHEN_BUF1(sql2->used);
 607                 sql->str[sql->used - 1] = ')';
 608                 sql2->str[sql2->used - 1] = ')';
 609                 ast_str_append(&sql, 0, "%s", sql2->str);
 610
 611                 ast_verb(11, "[%s]\n", sql->str);
 612
 613                 stmt = ast_odbc_prepare_and_execute(obj, generic_prepare, sql->str);
 614                 if (stmt) {
 615                         SQLRowCount(stmt, &rows);
 616                         SQLFreeHandle(SQL_HANDLE_STMT, stmt);
 617                 }
 618                 if (rows == 0) {
 619                         ast_log(LOG_WARNING, "cdr_adaptive_odbc: Insert failed on '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, sql->str);
 620                 }
 621 early_release:
 622                 ast_odbc_release_obj(obj);
 623         }
 624         AST_RWLIST_UNLOCK(&odbc_tables);
 625
 626         /* Next time, just allocate buffers that are that big to start with. */
 627         if (sql->used > maxsize)
 628                 maxsize = sql->used;
 629         if (sql2->used > maxsize2)
 630                 maxsize2 = sql2->used;
 631
 632         ast_free(sql);
 633         ast_free(sql2);
 634         return 0;
 635 }
 636
 637 static int unload_module(void)
 638 {
 639         ast_cdr_unregister(name);
 640         usleep(1);
 641         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 642                 ast_cdr_register(name, ast_module_info->description, odbc_log);
 643                 ast_log(LOG_ERROR, "Unable to lock column list.  Unload failed.\n");
 644                 return -1;
 645         }
 646
 647         free_config();
 648         AST_RWLIST_UNLOCK(&odbc_tables);
 649         return 0;
 650 }
 651
 652 static int load_module(void)
 653 {
 654         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 655                 ast_log(LOG_ERROR, "Unable to lock column list.  Load failed.\n");
 656                 return 0;
 657         }
 658
 659         load_config();
 660         AST_RWLIST_UNLOCK(&odbc_tables);
 661         ast_cdr_register(name, ast_module_info->description, odbc_log);
 662         return 0;
 663 }
 664
 665 static int reload(void)
 666 {
 667         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 668                 ast_log(LOG_ERROR, "Unable to lock column list.  Reload failed.\n");
 669                 return -1;
 670         }
 671
 672         free_config();
 673         load_config();
 674         AST_RWLIST_UNLOCK(&odbc_tables);
 675         return 0;
 676 }
 677
 678 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Adaptive ODBC CDR backend",
 679         .load = load_module,
 680         .unload = unload_module,
 681         .reload = reload,
 682 );
 683