Thu Oct 11 06:33:36 2012

Asterisk developer's documentation


cdr.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999 - 2006, Digium, Inc.
00005  *
00006  * Mark Spencer <markster@digium.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*! \file
00020  *
00021  * \brief Call Detail Record API
00022  *
00023  * \author Mark Spencer <markster@digium.com>
00024  *
00025  * \note Includes code and algorithms from the Zapata library.
00026  *
00027  * \note We do a lot of checking here in the CDR code to try to be sure we don't ever let a CDR slip
00028  * through our fingers somehow.  If someone allocates a CDR, it must be completely handled normally
00029  * or a WARNING shall be logged, so that we can best keep track of any escape condition where the CDR
00030  * isn't properly generated and posted.
00031  */
00032 
00033 
00034 /*** MODULEINFO
00035    <support_level>core</support_level>
00036  ***/
00037 
00038 #include "asterisk.h"
00039 
00040 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 371989 $")
00041 
00042 #include <signal.h>
00043 
00044 #include "asterisk/lock.h"
00045 #include "asterisk/channel.h"
00046 #include "asterisk/cdr.h"
00047 #include "asterisk/callerid.h"
00048 #include "asterisk/manager.h"
00049 #include "asterisk/causes.h"
00050 #include "asterisk/linkedlists.h"
00051 #include "asterisk/utils.h"
00052 #include "asterisk/sched.h"
00053 #include "asterisk/config.h"
00054 #include "asterisk/cli.h"
00055 #include "asterisk/stringfields.h"
00056 #include "asterisk/data.h"
00057 
00058 /*** DOCUMENTATION
00059  ***/
00060 
00061 /*! Default AMA flag for billing records (CDR's) */
00062 int ast_default_amaflags = AST_CDR_DOCUMENTATION;
00063 char ast_default_accountcode[AST_MAX_ACCOUNT_CODE];
00064 
00065 struct ast_cdr_beitem {
00066    char name[20];
00067    char desc[80];
00068    ast_cdrbe be;
00069    AST_RWLIST_ENTRY(ast_cdr_beitem) list;
00070 };
00071 
00072 static AST_RWLIST_HEAD_STATIC(be_list, ast_cdr_beitem);
00073 
00074 struct ast_cdr_batch_item {
00075    struct ast_cdr *cdr;
00076    struct ast_cdr_batch_item *next;
00077 };
00078 
00079 static struct ast_cdr_batch {
00080    int size;
00081    struct ast_cdr_batch_item *head;
00082    struct ast_cdr_batch_item *tail;
00083 } *batch = NULL;
00084 
00085 
00086 static int cdr_sequence =  0;
00087 
00088 static int cdr_seq_inc(struct ast_cdr *cdr);
00089 
00090 static struct ast_sched_context *sched;
00091 static int cdr_sched = -1;
00092 static pthread_t cdr_thread = AST_PTHREADT_NULL;
00093 
00094 static int enabled;
00095 static const int ENABLED_DEFAULT = 1;
00096 
00097 static int batchmode;
00098 static const int BATCHMODE_DEFAULT = 0;
00099 
00100 static int unanswered;
00101 static const int UNANSWERED_DEFAULT = 0;
00102 
00103 static int congestion;
00104 static const int CONGESTION_DEFAULT = 0;
00105 
00106 static int batchsize;
00107 static const int BATCH_SIZE_DEFAULT = 100;
00108 
00109 static int batchtime;
00110 static const int BATCH_TIME_DEFAULT = 300;
00111 
00112 static int batchscheduleronly;
00113 static const int BATCH_SCHEDULER_ONLY_DEFAULT = 0;
00114 
00115 static int batchsafeshutdown;
00116 static const int BATCH_SAFE_SHUTDOWN_DEFAULT = 1;
00117 
00118 AST_MUTEX_DEFINE_STATIC(cdr_batch_lock);
00119 
00120 /* these are used to wake up the CDR thread when there's work to do */
00121 AST_MUTEX_DEFINE_STATIC(cdr_pending_lock);
00122 static ast_cond_t cdr_pending_cond;
00123 
00124 int check_cdr_enabled(void)
00125 {
00126    return enabled;
00127 }
00128 
00129 /*!
00130  * \brief Register a CDR driver. Each registered CDR driver generates a CDR
00131  * \retval 0 on success.
00132  * \retval -1 on error
00133  */
00134 int ast_cdr_register(const char *name, const char *desc, ast_cdrbe be)
00135 {
00136    struct ast_cdr_beitem *i = NULL;
00137 
00138    if (!name)
00139       return -1;
00140 
00141    if (!be) {
00142       ast_log(LOG_WARNING, "CDR engine '%s' lacks backend\n", name);
00143       return -1;
00144    }
00145 
00146    AST_RWLIST_WRLOCK(&be_list);
00147    AST_RWLIST_TRAVERSE(&be_list, i, list) {
00148       if (!strcasecmp(name, i->name)) {
00149          ast_log(LOG_WARNING, "Already have a CDR backend called '%s'\n", name);
00150          AST_RWLIST_UNLOCK(&be_list);
00151          return -1;
00152       }
00153    }
00154 
00155    if (!(i = ast_calloc(1, sizeof(*i))))
00156       return -1;
00157 
00158    i->be = be;
00159    ast_copy_string(i->name, name, sizeof(i->name));
00160    ast_copy_string(i->desc, desc, sizeof(i->desc));
00161 
00162    AST_RWLIST_INSERT_HEAD(&be_list, i, list);
00163    AST_RWLIST_UNLOCK(&be_list);
00164 
00165    return 0;
00166 }
00167 
00168 /*! unregister a CDR driver */
00169 void ast_cdr_unregister(const char *name)
00170 {
00171    struct ast_cdr_beitem *i = NULL;
00172 
00173    AST_RWLIST_WRLOCK(&be_list);
00174    AST_RWLIST_TRAVERSE_SAFE_BEGIN(&be_list, i, list) {
00175       if (!strcasecmp(name, i->name)) {
00176          AST_RWLIST_REMOVE_CURRENT(list);
00177          break;
00178       }
00179    }
00180    AST_RWLIST_TRAVERSE_SAFE_END;
00181    AST_RWLIST_UNLOCK(&be_list);
00182 
00183    if (i) {
00184       ast_verb(2, "Unregistered '%s' CDR backend\n", name);
00185       ast_free(i);
00186    }
00187 }
00188 
00189 int ast_cdr_isset_unanswered(void)
00190 {
00191    return unanswered;
00192 }
00193 
00194 int ast_cdr_isset_congestion(void)
00195 {
00196    return congestion;
00197 }
00198 
00199 struct ast_cdr *ast_cdr_dup_unique(struct ast_cdr *cdr)
00200 {
00201    struct ast_cdr *newcdr = ast_cdr_dup(cdr);
00202    if (!newcdr)
00203       return NULL;
00204 
00205    cdr_seq_inc(newcdr);
00206    return newcdr;
00207 }
00208 
00209 struct ast_cdr *ast_cdr_dup_unique_swap(struct ast_cdr *cdr)
00210 {
00211    struct ast_cdr *newcdr = ast_cdr_dup(cdr);
00212    if (!newcdr)
00213       return NULL;
00214 
00215    cdr_seq_inc(cdr);
00216    return newcdr;
00217 }
00218 
00219 /*! Duplicate a CDR record
00220    \returns Pointer to new CDR record
00221 */
00222 struct ast_cdr *ast_cdr_dup(struct ast_cdr *cdr)
00223 {
00224    struct ast_cdr *newcdr;
00225 
00226    if (!cdr) /* don't die if we get a null cdr pointer */
00227       return NULL;
00228    newcdr = ast_cdr_alloc();
00229    if (!newcdr)
00230       return NULL;
00231 
00232    memcpy(newcdr, cdr, sizeof(*newcdr));
00233    /* The varshead is unusable, volatile even, after the memcpy so we take care of that here */
00234    memset(&newcdr->varshead, 0, sizeof(newcdr->varshead));
00235    ast_cdr_copy_vars(newcdr, cdr);
00236    newcdr->next = NULL;
00237 
00238    return newcdr;
00239 }
00240 
00241 static const char *ast_cdr_getvar_internal(struct ast_cdr *cdr, const char *name, int recur)
00242 {
00243    if (ast_strlen_zero(name))
00244       return NULL;
00245 
00246    for (; cdr; cdr = recur ? cdr->next : NULL) {
00247       struct ast_var_t *variables;
00248       struct varshead *headp = &cdr->varshead;
00249       AST_LIST_TRAVERSE(headp, variables, entries) {
00250          if (!strcasecmp(name, ast_var_name(variables)))
00251             return ast_var_value(variables);
00252       }
00253    }
00254 
00255    return NULL;
00256 }
00257 
00258 static void cdr_get_tv(struct timeval when, const char *fmt, char *buf, int bufsize)
00259 {
00260    if (fmt == NULL) {   /* raw mode */
00261       snprintf(buf, bufsize, "%ld.%06ld", (long)when.tv_sec, (long)when.tv_usec);
00262    } else {
00263       if (when.tv_sec) {
00264          struct ast_tm tm;
00265 
00266          ast_localtime(&when, &tm, NULL);
00267          ast_strftime(buf, bufsize, fmt, &tm);
00268       }
00269    }
00270 }
00271 
00272 /*! CDR channel variable retrieval */
00273 void ast_cdr_getvar(struct ast_cdr *cdr, const char *name, char **ret, char *workspace, int workspacelen, int recur, int raw)
00274 {
00275    const char *fmt = "%Y-%m-%d %T";
00276    const char *varbuf;
00277 
00278    if (!cdr)  /* don't die if the cdr is null */
00279       return;
00280 
00281    *ret = NULL;
00282    /* special vars (the ones from the struct ast_cdr when requested by name)
00283       I'd almost say we should convert all the stringed vals to vars */
00284 
00285    if (!strcasecmp(name, "clid"))
00286       ast_copy_string(workspace, cdr->clid, workspacelen);
00287    else if (!strcasecmp(name, "src"))
00288       ast_copy_string(workspace, cdr->src, workspacelen);
00289    else if (!strcasecmp(name, "dst"))
00290       ast_copy_string(workspace, cdr->dst, workspacelen);
00291    else if (!strcasecmp(name, "dcontext"))
00292       ast_copy_string(workspace, cdr->dcontext, workspacelen);
00293    else if (!strcasecmp(name, "channel"))
00294       ast_copy_string(workspace, cdr->channel, workspacelen);
00295    else if (!strcasecmp(name, "dstchannel"))
00296       ast_copy_string(workspace, cdr->dstchannel, workspacelen);
00297    else if (!strcasecmp(name, "lastapp"))
00298       ast_copy_string(workspace, cdr->lastapp, workspacelen);
00299    else if (!strcasecmp(name, "lastdata"))
00300       ast_copy_string(workspace, cdr->lastdata, workspacelen);
00301    else if (!strcasecmp(name, "start"))
00302       cdr_get_tv(cdr->start, raw ? NULL : fmt, workspace, workspacelen);
00303    else if (!strcasecmp(name, "answer"))
00304       cdr_get_tv(cdr->answer, raw ? NULL : fmt, workspace, workspacelen);
00305    else if (!strcasecmp(name, "end"))
00306       cdr_get_tv(cdr->end, raw ? NULL : fmt, workspace, workspacelen);
00307    else if (!strcasecmp(name, "duration")) {
00308       snprintf(workspace, workspacelen, "%ld", cdr->end.tv_sec != 0 ? cdr->duration : (long)ast_tvdiff_ms(ast_tvnow(), cdr->start) / 1000);
00309    } else if (!strcasecmp(name, "billsec"))
00310       snprintf(workspace, workspacelen, "%ld", cdr->billsec || cdr->answer.tv_sec == 0 ? cdr->billsec : (long)ast_tvdiff_ms(ast_tvnow(), cdr->answer) / 1000);
00311    else if (!strcasecmp(name, "disposition")) {
00312       if (raw) {
00313          snprintf(workspace, workspacelen, "%ld", cdr->disposition);
00314       } else {
00315          ast_copy_string(workspace, ast_cdr_disp2str(cdr->disposition), workspacelen);
00316       }
00317    } else if (!strcasecmp(name, "amaflags")) {
00318       if (raw) {
00319          snprintf(workspace, workspacelen, "%ld", cdr->amaflags);
00320       } else {
00321          ast_copy_string(workspace, ast_cdr_flags2str(cdr->amaflags), workspacelen);
00322       }
00323    } else if (!strcasecmp(name, "accountcode"))
00324       ast_copy_string(workspace, cdr->accountcode, workspacelen);
00325    else if (!strcasecmp(name, "peeraccount"))
00326       ast_copy_string(workspace, cdr->peeraccount, workspacelen);
00327    else if (!strcasecmp(name, "uniqueid"))
00328       ast_copy_string(workspace, cdr->uniqueid, workspacelen);
00329    else if (!strcasecmp(name, "linkedid"))
00330       ast_copy_string(workspace, cdr->linkedid, workspacelen);
00331    else if (!strcasecmp(name, "userfield"))
00332       ast_copy_string(workspace, cdr->userfield, workspacelen);
00333    else if (!strcasecmp(name, "sequence"))
00334       snprintf(workspace, workspacelen, "%d", cdr->sequence);
00335    else if ((varbuf = ast_cdr_getvar_internal(cdr, name, recur)))
00336       ast_copy_string(workspace, varbuf, workspacelen);
00337    else
00338       workspace[0] = '\0';
00339 
00340    if (!ast_strlen_zero(workspace))
00341       *ret = workspace;
00342 }
00343 
00344 /* readonly cdr variables */
00345 static const char * const cdr_readonly_vars[] = { "clid", "src", "dst", "dcontext", "channel", "dstchannel",
00346                     "lastapp", "lastdata", "start", "answer", "end", "duration",
00347                     "billsec", "disposition", "amaflags", "accountcode", "uniqueid", "linkedid",
00348                     "userfield", "sequence", NULL };
00349 /*! Set a CDR channel variable
00350    \note You can't set the CDR variables that belong to the actual CDR record, like "billsec".
00351 */
00352 int ast_cdr_setvar(struct ast_cdr *cdr, const char *name, const char *value, int recur)
00353 {
00354    struct ast_var_t *newvariable;
00355    struct varshead *headp;
00356    int x;
00357 
00358    for (x = 0; cdr_readonly_vars[x]; x++) {
00359       if (!strcasecmp(name, cdr_readonly_vars[x])) {
00360          ast_log(LOG_ERROR, "Attempt to set the '%s' read-only variable!.\n", name);
00361          return -1;
00362       }
00363    }
00364 
00365    if (!cdr) {
00366       ast_log(LOG_ERROR, "Attempt to set a variable on a nonexistent CDR record.\n");
00367       return -1;
00368    }
00369 
00370    for (; cdr; cdr = recur ? cdr->next : NULL) {
00371       if (ast_test_flag(cdr, AST_CDR_FLAG_DONT_TOUCH) && ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
00372          continue;
00373       headp = &cdr->varshead;
00374       AST_LIST_TRAVERSE_SAFE_BEGIN(headp, newvariable, entries) {
00375          if (!strcasecmp(ast_var_name(newvariable), name)) {
00376             /* there is already such a variable, delete it */
00377             AST_LIST_REMOVE_CURRENT(entries);
00378             ast_var_delete(newvariable);
00379             break;
00380          }
00381       }
00382       AST_LIST_TRAVERSE_SAFE_END;
00383 
00384       if (value) {
00385          newvariable = ast_var_assign(name, value);
00386          AST_LIST_INSERT_HEAD(headp, newvariable, entries);
00387       }
00388    }
00389 
00390    return 0;
00391 }
00392 
00393 int ast_cdr_copy_vars(struct ast_cdr *to_cdr, struct ast_cdr *from_cdr)
00394 {
00395    struct ast_var_t *variables, *newvariable = NULL;
00396    struct varshead *headpa, *headpb;
00397    const char *var, *val;
00398    int x = 0;
00399 
00400    if (!to_cdr || !from_cdr) /* don't die if one of the pointers is null */
00401       return 0;
00402 
00403    headpa = &from_cdr->varshead;
00404    headpb = &to_cdr->varshead;
00405 
00406    AST_LIST_TRAVERSE(headpa,variables,entries) {
00407       if (variables &&
00408           (var = ast_var_name(variables)) && (val = ast_var_value(variables)) &&
00409           !ast_strlen_zero(var) && !ast_strlen_zero(val)) {
00410          newvariable = ast_var_assign(var, val);
00411          AST_LIST_INSERT_HEAD(headpb, newvariable, entries);
00412          x++;
00413       }
00414    }
00415 
00416    return x;
00417 }
00418 
00419 int ast_cdr_serialize_variables(struct ast_cdr *cdr, struct ast_str **buf, char delim, char sep, int recur)
00420 {
00421    struct ast_var_t *variables;
00422    const char *var;
00423    char *tmp;
00424    char workspace[256];
00425    int total = 0, x = 0, i;
00426 
00427    ast_str_reset(*buf);
00428 
00429    for (; cdr; cdr = recur ? cdr->next : NULL) {
00430       if (++x > 1)
00431          ast_str_append(buf, 0, "\n");
00432 
00433       AST_LIST_TRAVERSE(&cdr->varshead, variables, entries) {
00434          if (!(var = ast_var_name(variables))) {
00435             continue;
00436          }
00437 
00438          if (ast_str_append(buf, 0, "level %d: %s%c%s%c", x, var, delim, S_OR(ast_var_value(variables), ""), sep) < 0) {
00439             ast_log(LOG_ERROR, "Data Buffer Size Exceeded!\n");
00440             break;
00441          }
00442 
00443          total++;
00444       }
00445 
00446       for (i = 0; cdr_readonly_vars[i]; i++) {
00447          workspace[0] = 0; /* null out the workspace, because the cdr_get_tv() won't write anything if time is NULL, so you get old vals */
00448          ast_cdr_getvar(cdr, cdr_readonly_vars[i], &tmp, workspace, sizeof(workspace), 0, 0);
00449          if (!tmp)
00450             continue;
00451 
00452          if (ast_str_append(buf, 0, "level %d: %s%c%s%c", x, cdr_readonly_vars[i], delim, tmp, sep) < 0) {
00453             ast_log(LOG_ERROR, "Data Buffer Size Exceeded!\n");
00454             break;
00455          } else
00456             total++;
00457       }
00458    }
00459 
00460    return total;
00461 }
00462 
00463 
00464 void ast_cdr_free_vars(struct ast_cdr *cdr, int recur)
00465 {
00466 
00467    /* clear variables */
00468    for (; cdr; cdr = recur ? cdr->next : NULL) {
00469       struct ast_var_t *vardata;
00470       struct varshead *headp = &cdr->varshead;
00471       while ((vardata = AST_LIST_REMOVE_HEAD(headp, entries)))
00472          ast_var_delete(vardata);
00473    }
00474 }
00475 
00476 /*! \brief  print a warning if cdr already posted */
00477 static void check_post(struct ast_cdr *cdr)
00478 {
00479    if (!cdr)
00480       return;
00481    if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED))
00482       ast_log(LOG_NOTICE, "CDR on channel '%s' already posted\n", S_OR(cdr->channel, "<unknown>"));
00483 }
00484 
00485 void ast_cdr_free(struct ast_cdr *cdr)
00486 {
00487 
00488    while (cdr) {
00489       struct ast_cdr *next = cdr->next;
00490 
00491       ast_cdr_free_vars(cdr, 0);
00492       ast_free(cdr);
00493       cdr = next;
00494    }
00495 }
00496 
00497 /*! \brief the same as a cdr_free call, only with no checks; just get rid of it */
00498 void ast_cdr_discard(struct ast_cdr *cdr)
00499 {
00500    while (cdr) {
00501       struct ast_cdr *next = cdr->next;
00502 
00503       ast_cdr_free_vars(cdr, 0);
00504       ast_free(cdr);
00505       cdr = next;
00506    }
00507 }
00508 
00509 struct ast_cdr *ast_cdr_alloc(void)
00510 {
00511    struct ast_cdr *x;
00512    x = ast_calloc(1, sizeof(*x));
00513    if (!x)
00514       ast_log(LOG_ERROR,"Allocation Failure for a CDR!\n");
00515    return x;
00516 }
00517 
00518 static void cdr_merge_vars(struct ast_cdr *to, struct ast_cdr *from)
00519 {
00520    struct ast_var_t *variablesfrom,*variablesto;
00521    struct varshead *headpfrom = &to->varshead;
00522    struct varshead *headpto = &from->varshead;
00523    AST_LIST_TRAVERSE_SAFE_BEGIN(headpfrom, variablesfrom, entries) {
00524       /* for every var in from, stick it in to */
00525       const char *fromvarname, *fromvarval;
00526       const char *tovarname = NULL, *tovarval = NULL;
00527       fromvarname = ast_var_name(variablesfrom);
00528       fromvarval = ast_var_value(variablesfrom);
00529       tovarname = 0;
00530 
00531       /* now, quick see if that var is in the 'to' cdr already */
00532       AST_LIST_TRAVERSE(headpto, variablesto, entries) {
00533 
00534          /* now, quick see if that var is in the 'to' cdr already */
00535          if ( strcasecmp(fromvarname, ast_var_name(variablesto)) == 0 ) {
00536             tovarname = ast_var_name(variablesto);
00537             tovarval = ast_var_value(variablesto);
00538             break;
00539          }
00540       }
00541       if (tovarname && strcasecmp(fromvarval,tovarval) != 0) {  /* this message here to see how irritating the userbase finds it */
00542          ast_log(LOG_NOTICE, "Merging CDR's: variable %s value %s dropped in favor of value %s\n", tovarname, fromvarval, tovarval);
00543          continue;
00544       } else if (tovarname && strcasecmp(fromvarval,tovarval) == 0) /* if they are the same, the job is done */
00545          continue;
00546 
00547       /* rip this var out of the from cdr, and stick it in the to cdr */
00548       AST_LIST_MOVE_CURRENT(headpto, entries);
00549    }
00550    AST_LIST_TRAVERSE_SAFE_END;
00551 }
00552 
00553 void ast_cdr_merge(struct ast_cdr *to, struct ast_cdr *from)
00554 {
00555    struct ast_cdr *zcdr;
00556    struct ast_cdr *lto = NULL;
00557    struct ast_cdr *lfrom = NULL;
00558    int discard_from = 0;
00559 
00560    if (!to || !from)
00561       return;
00562 
00563    /* don't merge into locked CDR's -- it's bad business */
00564    if (ast_test_flag(to, AST_CDR_FLAG_LOCKED)) {
00565       zcdr = to; /* safety valve? */
00566       while (to->next) {
00567          lto = to;
00568          to = to->next;
00569       }
00570 
00571       if (ast_test_flag(to, AST_CDR_FLAG_LOCKED)) {
00572          ast_log(LOG_WARNING, "Merging into locked CDR... no choice.\n");
00573          to = zcdr; /* safety-- if all there are is locked CDR's, then.... ?? */
00574          lto = NULL;
00575       }
00576    }
00577 
00578    if (ast_test_flag(from, AST_CDR_FLAG_LOCKED)) {
00579       struct ast_cdr *llfrom = NULL;
00580       discard_from = 1;
00581       if (lto) {
00582          /* insert the from stuff after lto */
00583          lto->next = from;
00584          lfrom = from;
00585          while (lfrom && lfrom->next) {
00586             if (!lfrom->next->next)
00587                llfrom = lfrom;
00588             lfrom = lfrom->next;
00589          }
00590          /* rip off the last entry and put a copy of the to at the end */
00591          if (llfrom) {
00592             llfrom->next = to;
00593          }
00594          from = lfrom;
00595       } else {
00596          /* save copy of the current *to cdr */
00597          struct ast_cdr tcdr;
00598          memcpy(&tcdr, to, sizeof(tcdr));
00599          /* copy in the locked from cdr */
00600          memcpy(to, from, sizeof(*to));
00601          lfrom = from;
00602          while (lfrom && lfrom->next) {
00603             if (!lfrom->next->next)
00604                llfrom = lfrom;
00605             lfrom = lfrom->next;
00606          }
00607          from->next = NULL;
00608          /* rip off the last entry and put a copy of the to at the end */
00609          if (llfrom == from) {
00610             to = to->next = ast_cdr_dup(&tcdr);
00611          } else if (llfrom) {
00612             to = llfrom->next = ast_cdr_dup(&tcdr);
00613          }
00614          from = lfrom;
00615       }
00616    }
00617 
00618    if (!ast_tvzero(from->start)) {
00619       if (!ast_tvzero(to->start)) {
00620          if (ast_tvcmp(to->start, from->start) > 0 ) {
00621             to->start = from->start; /* use the earliest time */
00622             from->start = ast_tv(0,0); /* we actively "steal" these values */
00623          }
00624          /* else nothing to do */
00625       } else {
00626          to->start = from->start;
00627          from->start = ast_tv(0,0); /* we actively "steal" these values */
00628       }
00629    }
00630    if (!ast_tvzero(from->answer)) {
00631       if (!ast_tvzero(to->answer)) {
00632          if (ast_tvcmp(to->answer, from->answer) > 0 ) {
00633             to->answer = from->answer; /* use the earliest time */
00634             from->answer = ast_tv(0,0); /* we actively "steal" these values */
00635          }
00636          /* we got the earliest answer time, so we'll settle for that? */
00637       } else {
00638          to->answer = from->answer;
00639          from->answer = ast_tv(0,0); /* we actively "steal" these values */
00640       }
00641    }
00642    if (!ast_tvzero(from->end)) {
00643       if (!ast_tvzero(to->end)) {
00644          if (ast_tvcmp(to->end, from->end) < 0 ) {
00645             to->end = from->end; /* use the latest time */
00646             from->end = ast_tv(0,0); /* we actively "steal" these values */
00647             to->duration = to->end.tv_sec - to->start.tv_sec;  /* don't forget to update the duration, billsec, when we set end */
00648             to->billsec = ast_tvzero(to->answer) ? 0 : to->end.tv_sec - to->answer.tv_sec;
00649          }
00650          /* else, nothing to do */
00651       } else {
00652          to->end = from->end;
00653          from->end = ast_tv(0,0); /* we actively "steal" these values */
00654          to->duration = to->end.tv_sec - to->start.tv_sec;
00655          to->billsec = ast_tvzero(to->answer) ? 0 : to->end.tv_sec - to->answer.tv_sec;
00656       }
00657    }
00658    if (to->disposition < from->disposition) {
00659       to->disposition = from->disposition;
00660       from->disposition = AST_CDR_NOANSWER;
00661    }
00662    if (ast_strlen_zero(to->lastapp) && !ast_strlen_zero(from->lastapp)) {
00663       ast_copy_string(to->lastapp, from->lastapp, sizeof(to->lastapp));
00664       from->lastapp[0] = 0; /* theft */
00665    }
00666    if (ast_strlen_zero(to->lastdata) && !ast_strlen_zero(from->lastdata)) {
00667       ast_copy_string(to->lastdata, from->lastdata, sizeof(to->lastdata));
00668       from->lastdata[0] = 0; /* theft */
00669    }
00670    if (ast_strlen_zero(to->dcontext) && !ast_strlen_zero(from->dcontext)) {
00671       ast_copy_string(to->dcontext, from->dcontext, sizeof(to->dcontext));
00672       from->dcontext[0] = 0; /* theft */
00673    }
00674    if (ast_strlen_zero(to->dstchannel) && !ast_strlen_zero(from->dstchannel)) {
00675       ast_copy_string(to->dstchannel, from->dstchannel, sizeof(to->dstchannel));
00676       from->dstchannel[0] = 0; /* theft */
00677    }
00678    if (!ast_strlen_zero(from->channel) && (ast_strlen_zero(to->channel) || !strncasecmp(from->channel, "Agent/", 6))) {
00679       ast_copy_string(to->channel, from->channel, sizeof(to->channel));
00680       from->channel[0] = 0; /* theft */
00681    }
00682    if (ast_strlen_zero(to->src) && !ast_strlen_zero(from->src)) {
00683       ast_copy_string(to->src, from->src, sizeof(to->src));
00684       from->src[0] = 0; /* theft */
00685    }
00686    if (ast_strlen_zero(to->clid) && !ast_strlen_zero(from->clid)) {
00687       ast_copy_string(to->clid, from->clid, sizeof(to->clid));
00688       from->clid[0] = 0; /* theft */
00689    }
00690    if (ast_strlen_zero(to->dst) && !ast_strlen_zero(from->dst)) {
00691       ast_copy_string(to->dst, from->dst, sizeof(to->dst));
00692       from->dst[0] = 0; /* theft */
00693    }
00694    if (!to->amaflags)
00695       to->amaflags = AST_CDR_DOCUMENTATION;
00696    if (!from->amaflags)
00697       from->amaflags = AST_CDR_DOCUMENTATION; /* make sure both amaflags are set to something (DOC is default) */
00698    if (ast_test_flag(from, AST_CDR_FLAG_LOCKED) || (to->amaflags == AST_CDR_DOCUMENTATION && from->amaflags != AST_CDR_DOCUMENTATION)) {
00699       to->amaflags = from->amaflags;
00700    }
00701    if (ast_test_flag(from, AST_CDR_FLAG_LOCKED) || (ast_strlen_zero(to->accountcode) && !ast_strlen_zero(from->accountcode))) {
00702       ast_copy_string(to->accountcode, from->accountcode, sizeof(to->accountcode));
00703    }
00704    if (ast_test_flag(from, AST_CDR_FLAG_LOCKED) || (ast_strlen_zero(to->peeraccount) && !ast_strlen_zero(from->peeraccount))) {
00705       ast_copy_string(to->peeraccount, from->peeraccount, sizeof(to->peeraccount));
00706    }
00707    if (ast_test_flag(from, AST_CDR_FLAG_LOCKED) || (ast_strlen_zero(to->userfield) && !ast_strlen_zero(from->userfield))) {
00708       ast_copy_string(to->userfield, from->userfield, sizeof(to->userfield));
00709    }
00710    /* flags, varsead, ? */
00711    cdr_merge_vars(from, to);
00712 
00713    if (ast_test_flag(from, AST_CDR_FLAG_KEEP_VARS))
00714       ast_set_flag(to, AST_CDR_FLAG_KEEP_VARS);
00715    if (ast_test_flag(from, AST_CDR_FLAG_POSTED))
00716       ast_set_flag(to, AST_CDR_FLAG_POSTED);
00717    if (ast_test_flag(from, AST_CDR_FLAG_LOCKED))
00718       ast_set_flag(to, AST_CDR_FLAG_LOCKED);
00719    if (ast_test_flag(from, AST_CDR_FLAG_CHILD))
00720       ast_set_flag(to, AST_CDR_FLAG_CHILD);
00721    if (ast_test_flag(from, AST_CDR_FLAG_POST_DISABLED))
00722       ast_set_flag(to, AST_CDR_FLAG_POST_DISABLED);
00723 
00724    /* last, but not least, we need to merge any forked CDRs to the 'to' cdr */
00725    while (from->next) {
00726       /* just rip 'em off the 'from' and insert them on the 'to' */
00727       zcdr = from->next;
00728       from->next = zcdr->next;
00729       zcdr->next = NULL;
00730       /* zcdr is now ripped from the current list; */
00731       ast_cdr_append(to, zcdr);
00732    }
00733    if (discard_from)
00734       ast_cdr_discard(from);
00735 }
00736 
00737 void ast_cdr_start(struct ast_cdr *cdr)
00738 {
00739    for (; cdr; cdr = cdr->next) {
00740       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00741          check_post(cdr);
00742          cdr->start = ast_tvnow();
00743       }
00744    }
00745 }
00746 
00747 void ast_cdr_answer(struct ast_cdr *cdr)
00748 {
00749 
00750    for (; cdr; cdr = cdr->next) {
00751       if (ast_test_flag(cdr, AST_CDR_FLAG_ANSLOCKED))
00752          continue;
00753       if (ast_test_flag(cdr, AST_CDR_FLAG_DONT_TOUCH) && ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
00754          continue;
00755       check_post(cdr);
00756       if (cdr->disposition < AST_CDR_ANSWERED)
00757          cdr->disposition = AST_CDR_ANSWERED;
00758       if (ast_tvzero(cdr->answer))
00759          cdr->answer = ast_tvnow();
00760    }
00761 }
00762 
00763 void ast_cdr_busy(struct ast_cdr *cdr)
00764 {
00765 
00766    for (; cdr; cdr = cdr->next) {
00767       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00768          check_post(cdr);
00769          cdr->disposition = AST_CDR_BUSY;
00770       }
00771    }
00772 }
00773 
00774 void ast_cdr_failed(struct ast_cdr *cdr)
00775 {
00776    for (; cdr; cdr = cdr->next) {
00777       check_post(cdr);
00778       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00779          check_post(cdr);
00780          if (cdr->disposition < AST_CDR_FAILED)
00781             cdr->disposition = AST_CDR_FAILED;
00782       }
00783    }
00784 }
00785 
00786 void ast_cdr_noanswer(struct ast_cdr *cdr)
00787 {
00788    while (cdr) {
00789       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00790          check_post(cdr);
00791          cdr->disposition = AST_CDR_NOANSWER;
00792       }
00793       cdr = cdr->next;
00794    }
00795 }
00796 
00797 void ast_cdr_congestion(struct ast_cdr *cdr)
00798 {
00799    char *chan;
00800 
00801    /* if congestion log is disabled, pass the buck to ast_cdr_failed */
00802    if (!congestion) {
00803       ast_cdr_failed(cdr);
00804    }
00805 
00806    while (cdr && congestion) {
00807       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00808          chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
00809 
00810          if (ast_test_flag(cdr, AST_CDR_FLAG_POSTED)) {
00811             ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
00812          }
00813 
00814          if (cdr->disposition < AST_CDR_CONGESTION) {
00815             cdr->disposition = AST_CDR_CONGESTION;
00816          }
00817       }
00818       cdr = cdr->next;
00819    }
00820 }
00821 
00822 /* everywhere ast_cdr_disposition is called, it will call ast_cdr_failed()
00823    if ast_cdr_disposition returns a non-zero value */
00824 
00825 int ast_cdr_disposition(struct ast_cdr *cdr, int cause)
00826 {
00827    int res = 0;
00828 
00829    for (; cdr; cdr = cdr->next) {
00830       switch (cause) {  /* handle all the non failure, busy cases, return 0 not to set disposition,
00831                      return -1 to set disposition to FAILED */
00832       case AST_CAUSE_BUSY:
00833          ast_cdr_busy(cdr);
00834          break;
00835       case AST_CAUSE_NO_ANSWER:
00836          ast_cdr_noanswer(cdr);
00837          break;
00838       case AST_CAUSE_NORMAL_CIRCUIT_CONGESTION:
00839          ast_cdr_congestion(cdr);
00840          break;
00841       case AST_CAUSE_NORMAL:
00842          break;
00843       default:
00844          res = -1;
00845       }
00846    }
00847    return res;
00848 }
00849 
00850 void ast_cdr_setdestchan(struct ast_cdr *cdr, const char *chann)
00851 {
00852    for (; cdr; cdr = cdr->next) {
00853       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00854          check_post(cdr);
00855          ast_copy_string(cdr->dstchannel, chann, sizeof(cdr->dstchannel));
00856       }
00857    }
00858 }
00859 
00860 void ast_cdr_setapp(struct ast_cdr *cdr, const char *app, const char *data)
00861 {
00862 
00863    for (; cdr; cdr = cdr->next) {
00864       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00865          check_post(cdr);
00866          ast_copy_string(cdr->lastapp, S_OR(app, ""), sizeof(cdr->lastapp));
00867          ast_copy_string(cdr->lastdata, S_OR(data, ""), sizeof(cdr->lastdata));
00868       }
00869    }
00870 }
00871 
00872 void ast_cdr_setanswer(struct ast_cdr *cdr, struct timeval t)
00873 {
00874 
00875    for (; cdr; cdr = cdr->next) {
00876       if (ast_test_flag(cdr, AST_CDR_FLAG_ANSLOCKED))
00877          continue;
00878       if (ast_test_flag(cdr, AST_CDR_FLAG_DONT_TOUCH) && ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
00879          continue;
00880       check_post(cdr);
00881       cdr->answer = t;
00882    }
00883 }
00884 
00885 void ast_cdr_setdisposition(struct ast_cdr *cdr, long int disposition)
00886 {
00887 
00888    for (; cdr; cdr = cdr->next) {
00889       if (ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
00890          continue;
00891       check_post(cdr);
00892       cdr->disposition = disposition;
00893    }
00894 }
00895 
00896 /* set cid info for one record */
00897 static void set_one_cid(struct ast_cdr *cdr, struct ast_channel *c)
00898 {
00899    const char *num;
00900 
00901    if (!cdr) {
00902       return;
00903    }
00904 
00905    /* Grab source from ANI or normal Caller*ID */
00906    num = S_COR(ast_channel_caller(c)->ani.number.valid, ast_channel_caller(c)->ani.number.str,
00907       S_COR(ast_channel_caller(c)->id.number.valid, ast_channel_caller(c)->id.number.str, NULL));
00908    ast_callerid_merge(cdr->clid, sizeof(cdr->clid),
00909       S_COR(ast_channel_caller(c)->id.name.valid, ast_channel_caller(c)->id.name.str, NULL), num, "");
00910    ast_copy_string(cdr->src, S_OR(num, ""), sizeof(cdr->src));
00911    ast_cdr_setvar(cdr, "dnid", S_OR(ast_channel_dialed(c)->number.str, ""), 0);
00912 
00913    if (ast_channel_caller(c)->id.subaddress.valid) {
00914       ast_cdr_setvar(cdr, "callingsubaddr", S_OR(ast_channel_caller(c)->id.subaddress.str, ""), 0);
00915    }
00916    if (ast_channel_dialed(c)->subaddress.valid) {
00917       ast_cdr_setvar(cdr, "calledsubaddr", S_OR(ast_channel_dialed(c)->subaddress.str, ""), 0);
00918    }
00919 }
00920 
00921 int ast_cdr_setcid(struct ast_cdr *cdr, struct ast_channel *c)
00922 {
00923    for (; cdr; cdr = cdr->next) {
00924       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
00925          set_one_cid(cdr, c);
00926    }
00927    return 0;
00928 }
00929 
00930 static int cdr_seq_inc(struct ast_cdr *cdr)
00931 {
00932    return (cdr->sequence = ast_atomic_fetchadd_int(&cdr_sequence, +1));
00933 }
00934 
00935 int ast_cdr_init(struct ast_cdr *cdr, struct ast_channel *c)
00936 {
00937    for ( ; cdr ; cdr = cdr->next) {
00938       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
00939          ast_copy_string(cdr->channel, ast_channel_name(c), sizeof(cdr->channel));
00940          set_one_cid(cdr, c);
00941          cdr_seq_inc(cdr);
00942 
00943          cdr->disposition = (ast_channel_state(c) == AST_STATE_UP) ?  AST_CDR_ANSWERED : AST_CDR_NOANSWER;
00944          cdr->amaflags = ast_channel_amaflags(c) ? ast_channel_amaflags(c) :  ast_default_amaflags;
00945          ast_copy_string(cdr->accountcode, ast_channel_accountcode(c), sizeof(cdr->accountcode));
00946          ast_copy_string(cdr->peeraccount, ast_channel_peeraccount(c), sizeof(cdr->peeraccount));
00947          /* Destination information */
00948          ast_copy_string(cdr->dst, S_OR(ast_channel_macroexten(c),ast_channel_exten(c)), sizeof(cdr->dst));
00949          ast_copy_string(cdr->dcontext, S_OR(ast_channel_macrocontext(c),ast_channel_context(c)), sizeof(cdr->dcontext));
00950          /* Unique call identifier */
00951          ast_copy_string(cdr->uniqueid, ast_channel_uniqueid(c), sizeof(cdr->uniqueid));
00952          /* Linked call identifier */
00953          ast_copy_string(cdr->linkedid, ast_channel_linkedid(c), sizeof(cdr->linkedid));
00954       }
00955    }
00956    return 0;
00957 }
00958 
00959 /* Three routines were "fixed" via 10668, and later shown that
00960    users were depending on this behavior. ast_cdr_end,
00961    ast_cdr_setvar and ast_cdr_answer are the three routines.
00962    While most of the other routines would not touch
00963    LOCKED cdr's, these three routines were designed to
00964    operate on locked CDR's as a matter of course.
00965    I now appreciate how this plays with the ForkCDR app,
00966    which forms these cdr chains in the first place.
00967    cdr_end is pretty key: all cdrs created are closed
00968    together. They only vary by start time. Arithmetically,
00969    users can calculate the subintervals they wish to track. */
00970 
00971 void ast_cdr_end(struct ast_cdr *cdr)
00972 {
00973    for ( ; cdr ; cdr = cdr->next) {
00974       if (ast_test_flag(cdr, AST_CDR_FLAG_DONT_TOUCH) && ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
00975          continue;
00976       check_post(cdr);
00977       if (ast_tvzero(cdr->end))
00978          cdr->end = ast_tvnow();
00979       if (ast_tvzero(cdr->start)) {
00980          ast_log(LOG_WARNING, "CDR on channel '%s' has not started\n", S_OR(cdr->channel, "<unknown>"));
00981          cdr->disposition = AST_CDR_FAILED;
00982       } else
00983          cdr->duration = cdr->end.tv_sec - cdr->start.tv_sec;
00984       if (ast_tvzero(cdr->answer)) {
00985          if (cdr->disposition == AST_CDR_ANSWERED) {
00986             ast_log(LOG_WARNING, "CDR on channel '%s' has no answer time but is 'ANSWERED'\n", S_OR(cdr->channel, "<unknown>"));
00987             cdr->disposition = AST_CDR_FAILED;
00988          }
00989       } else {
00990          cdr->billsec = cdr->end.tv_sec - cdr->answer.tv_sec;
00991          if (ast_test_flag(&ast_options, AST_OPT_FLAG_INITIATED_SECONDS))
00992             cdr->billsec += cdr->end.tv_usec > cdr->answer.tv_usec ? 1 : 0;
00993       }
00994    }
00995 }
00996 
00997 char *ast_cdr_disp2str(int disposition)
00998 {
00999    switch (disposition) {
01000    case AST_CDR_NULL:
01001       return "NO ANSWER"; /* by default, for backward compatibility */
01002    case AST_CDR_NOANSWER:
01003       return "NO ANSWER";
01004    case AST_CDR_FAILED:
01005       return "FAILED";
01006    case AST_CDR_BUSY:
01007       return "BUSY";
01008    case AST_CDR_ANSWERED:
01009       return "ANSWERED";
01010    case AST_CDR_CONGESTION:
01011       return "CONGESTION";
01012    }
01013    return "UNKNOWN";
01014 }
01015 
01016 /*! Converts AMA flag to printable string 
01017  *
01018  * \param flag, flags
01019  */
01020 char *ast_cdr_flags2str(int flag)
01021 {
01022    switch (flag) {
01023    case AST_CDR_OMIT:
01024       return "OMIT";
01025    case AST_CDR_BILLING:
01026       return "BILLING";
01027    case AST_CDR_DOCUMENTATION:
01028       return "DOCUMENTATION";
01029    }
01030    return "Unknown";
01031 }
01032 
01033 int ast_cdr_setaccount(struct ast_channel *chan, const char *account)
01034 {
01035    struct ast_cdr *cdr = ast_channel_cdr(chan);
01036    const char *old_acct = "";
01037 
01038    if (!ast_strlen_zero(ast_channel_accountcode(chan))) {
01039       old_acct = ast_strdupa(ast_channel_accountcode(chan));
01040    }
01041 
01042    ast_channel_accountcode_set(chan, account);
01043    for ( ; cdr ; cdr = cdr->next) {
01044       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
01045          ast_copy_string(cdr->accountcode, ast_channel_accountcode(chan), sizeof(cdr->accountcode));
01046       }
01047    }
01048    /*** DOCUMENTATION
01049       <managerEventInstance>
01050          <synopsis>Raised when a CDR's AccountCode is changed.</synopsis>
01051       </managerEventInstance>
01052    ***/
01053    ast_manager_event(chan, EVENT_FLAG_CALL, "NewAccountCode",
01054          "Channel: %s\r\n"
01055          "Uniqueid: %s\r\n"
01056          "AccountCode: %s\r\n"
01057          "OldAccountCode: %s\r\n",
01058          ast_channel_name(chan), ast_channel_uniqueid(chan), ast_channel_accountcode(chan), old_acct);
01059 
01060    return 0;
01061 }
01062 
01063 int ast_cdr_setpeeraccount(struct ast_channel *chan, const char *account)
01064 {
01065    struct ast_cdr *cdr = ast_channel_cdr(chan);
01066    const char *old_acct = "";
01067 
01068    if (!ast_strlen_zero(ast_channel_peeraccount(chan))) {
01069       old_acct = ast_strdupa(ast_channel_peeraccount(chan));
01070    }
01071 
01072    ast_channel_peeraccount_set(chan, account);
01073    for ( ; cdr ; cdr = cdr->next) {
01074       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
01075          ast_copy_string(cdr->peeraccount, ast_channel_peeraccount(chan), sizeof(cdr->peeraccount));
01076       }
01077    }
01078    /*** DOCUMENTATION
01079       <managerEventInstance>
01080          <synopsis>Raised when a CDR's PeerAccount is changed.</synopsis>
01081       </managerEventInstance>
01082    ***/
01083    ast_manager_event(chan, EVENT_FLAG_CALL, "NewPeerAccount",
01084          "Channel: %s\r\n"
01085          "Uniqueid: %s\r\n"
01086          "PeerAccount: %s\r\n"
01087          "OldPeerAccount: %s\r\n",
01088          ast_channel_name(chan), ast_channel_uniqueid(chan), ast_channel_peeraccount(chan), old_acct);
01089 
01090    return 0;
01091 }
01092 
01093 int ast_cdr_setamaflags(struct ast_channel *chan, const char *flag)
01094 {
01095    struct ast_cdr *cdr;
01096    int newflag = ast_cdr_amaflags2int(flag);
01097    if (newflag) {
01098       for (cdr = ast_channel_cdr(chan); cdr; cdr = cdr->next) {
01099          if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
01100             cdr->amaflags = newflag;
01101          }
01102       }
01103    }
01104 
01105    return 0;
01106 }
01107 
01108 int ast_cdr_setuserfield(struct ast_channel *chan, const char *userfield)
01109 {
01110    struct ast_cdr *cdr = ast_channel_cdr(chan);
01111 
01112    for ( ; cdr ; cdr = cdr->next) {
01113       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
01114          ast_copy_string(cdr->userfield, userfield, sizeof(cdr->userfield));
01115    }
01116 
01117    return 0;
01118 }
01119 
01120 int ast_cdr_appenduserfield(struct ast_channel *chan, const char *userfield)
01121 {
01122    struct ast_cdr *cdr = ast_channel_cdr(chan);
01123 
01124    for ( ; cdr ; cdr = cdr->next) {
01125       int len = strlen(cdr->userfield);
01126 
01127       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED))
01128          ast_copy_string(cdr->userfield + len, userfield, sizeof(cdr->userfield) - len);
01129    }
01130 
01131    return 0;
01132 }
01133 
01134 int ast_cdr_update(struct ast_channel *c)
01135 {
01136    struct ast_cdr *cdr = ast_channel_cdr(c);
01137 
01138    for ( ; cdr ; cdr = cdr->next) {
01139       if (!ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
01140          set_one_cid(cdr, c);
01141 
01142          /* Copy account code et-al */
01143          ast_copy_string(cdr->accountcode, ast_channel_accountcode(c), sizeof(cdr->accountcode));
01144          ast_copy_string(cdr->peeraccount, ast_channel_peeraccount(c), sizeof(cdr->peeraccount));
01145          ast_copy_string(cdr->linkedid, ast_channel_linkedid(c), sizeof(cdr->linkedid));
01146 
01147          /* Destination information */ /* XXX privilege macro* ? */
01148          ast_copy_string(cdr->dst, S_OR(ast_channel_macroexten(c), ast_channel_exten(c)), sizeof(cdr->dst));
01149          ast_copy_string(cdr->dcontext, S_OR(ast_channel_macrocontext(c), ast_channel_context(c)), sizeof(cdr->dcontext));
01150       }
01151    }
01152 
01153    return 0;
01154 }
01155 
01156 int ast_cdr_amaflags2int(const char *flag)
01157 {
01158    if (!strcasecmp(flag, "default"))
01159       return 0;
01160    if (!strcasecmp(flag, "omit"))
01161       return AST_CDR_OMIT;
01162    if (!strcasecmp(flag, "billing"))
01163       return AST_CDR_BILLING;
01164    if (!strcasecmp(flag, "documentation"))
01165       return AST_CDR_DOCUMENTATION;
01166    return -1;
01167 }
01168 
01169 static void post_cdr(struct ast_cdr *cdr)
01170 {
01171    struct ast_cdr_beitem *i;
01172 
01173    for ( ; cdr ; cdr = cdr->next) {
01174       if (!unanswered && cdr->disposition < AST_CDR_ANSWERED && (ast_strlen_zero(cdr->channel) || ast_strlen_zero(cdr->dstchannel))) {
01175          /* For people, who don't want to see unanswered single-channel events */
01176          ast_set_flag(cdr, AST_CDR_FLAG_POST_DISABLED);
01177          continue;
01178       }
01179 
01180       /* don't post CDRs that are for dialed channels unless those
01181        * channels were originated from asterisk (pbx_spool, manager,
01182        * cli) */
01183       if (ast_test_flag(cdr, AST_CDR_FLAG_DIALED) && !ast_test_flag(cdr, AST_CDR_FLAG_ORIGINATED)) {
01184          ast_set_flag(cdr, AST_CDR_FLAG_POST_DISABLED);
01185          continue;
01186       }
01187 
01188       check_post(cdr);
01189       ast_set_flag(cdr, AST_CDR_FLAG_POSTED);
01190       if (ast_test_flag(cdr, AST_CDR_FLAG_POST_DISABLED))
01191          continue;
01192       AST_RWLIST_RDLOCK(&be_list);
01193       AST_RWLIST_TRAVERSE(&be_list, i, list) {
01194          i->be(cdr);
01195       }
01196       AST_RWLIST_UNLOCK(&be_list);
01197    }
01198 }
01199 
01200 void ast_cdr_reset(struct ast_cdr *cdr, struct ast_flags *_flags)
01201 {
01202    struct ast_cdr *duplicate;
01203    struct ast_flags flags = { 0 };
01204 
01205    if (_flags)
01206       ast_copy_flags(&flags, _flags, AST_FLAGS_ALL);
01207 
01208    for ( ; cdr ; cdr = cdr->next) {
01209       /* Detach if post is requested */
01210       if (ast_test_flag(&flags, AST_CDR_FLAG_LOCKED) || !ast_test_flag(cdr, AST_CDR_FLAG_LOCKED)) {
01211          if (ast_test_flag(&flags, AST_CDR_FLAG_POSTED)) {
01212             ast_cdr_end(cdr);
01213             if ((duplicate = ast_cdr_dup_unique_swap(cdr))) {
01214                ast_cdr_detach(duplicate);
01215             }
01216             ast_set_flag(cdr, AST_CDR_FLAG_POSTED);
01217          }
01218 
01219          /* enable CDR only */
01220          if (ast_test_flag(&flags, AST_CDR_FLAG_POST_ENABLE)) {
01221             ast_clear_flag(cdr, AST_CDR_FLAG_POST_DISABLED);
01222             continue;
01223          }
01224 
01225          /* clear variables */
01226          if (!ast_test_flag(&flags, AST_CDR_FLAG_KEEP_VARS)) {
01227             ast_cdr_free_vars(cdr, 0);
01228          }
01229 
01230          /* Reset to initial state */
01231          ast_clear_flag(cdr, AST_FLAGS_ALL);
01232          memset(&cdr->start, 0, sizeof(cdr->start));
01233          memset(&cdr->end, 0, sizeof(cdr->end));
01234          memset(&cdr->answer, 0, sizeof(cdr->answer));
01235          cdr->billsec = 0;
01236          cdr->duration = 0;
01237          ast_cdr_start(cdr);
01238          cdr->disposition = AST_CDR_NOANSWER;
01239       }
01240    }
01241 }
01242 
01243 void ast_cdr_specialized_reset(struct ast_cdr *cdr, struct ast_flags *_flags)
01244 {
01245    struct ast_flags flags = { 0 };
01246 
01247    if (_flags)
01248       ast_copy_flags(&flags, _flags, AST_FLAGS_ALL);
01249 
01250    /* Reset to initial state */
01251    if (ast_test_flag(cdr, AST_CDR_FLAG_POST_DISABLED)) { /* But do NOT lose the NoCDR() setting */
01252       ast_clear_flag(cdr, AST_FLAGS_ALL);
01253       ast_set_flag(cdr, AST_CDR_FLAG_POST_DISABLED);
01254    } else {
01255       ast_clear_flag(cdr, AST_FLAGS_ALL);
01256    }
01257 
01258    memset(&cdr->start, 0, sizeof(cdr->start));
01259    memset(&cdr->end, 0, sizeof(cdr->end));
01260    memset(&cdr->answer, 0, sizeof(cdr->answer));
01261    cdr->billsec = 0;
01262    cdr->duration = 0;
01263    ast_cdr_start(cdr);
01264    cdr->disposition = AST_CDR_NULL;
01265 }
01266 
01267 struct ast_cdr *ast_cdr_append(struct ast_cdr *cdr, struct ast_cdr *newcdr)
01268 {
01269    struct ast_cdr *ret;
01270 
01271    if (cdr) {
01272       ret = cdr;
01273 
01274       while (cdr->next)
01275          cdr = cdr->next;
01276       cdr->next = newcdr;
01277    } else {
01278       ret = newcdr;
01279    }
01280 
01281    return ret;
01282 }
01283 
01284 /*! \note Don't call without cdr_batch_lock */
01285 static void reset_batch(void)
01286 {
01287    batch->size = 0;
01288    batch->head = NULL;
01289    batch->tail = NULL;
01290 }
01291 
01292 /*! \note Don't call without cdr_batch_lock */
01293 static int init_batch(void)
01294 {
01295    /* This is the single meta-batch used to keep track of all CDRs during the entire life of the program */
01296    if (!(batch = ast_malloc(sizeof(*batch))))
01297       return -1;
01298 
01299    reset_batch();
01300 
01301    return 0;
01302 }
01303 
01304 static void *do_batch_backend_process(void *data)
01305 {
01306    struct ast_cdr_batch_item *processeditem;
01307    struct ast_cdr_batch_item *batchitem = data;
01308 
01309    /* Push each CDR into storage mechanism(s) and free all the memory */
01310    while (batchitem) {
01311       post_cdr(batchitem->cdr);
01312       ast_cdr_free(batchitem->cdr);
01313       processeditem = batchitem;
01314       batchitem = batchitem->next;
01315       ast_free(processeditem);
01316    }
01317 
01318    return NULL;
01319 }
01320 
01321 void ast_cdr_submit_batch(int do_shutdown)
01322 {
01323    struct ast_cdr_batch_item *oldbatchitems = NULL;
01324    pthread_t batch_post_thread = AST_PTHREADT_NULL;
01325 
01326    /* if there's no batch, or no CDRs in the batch, then there's nothing to do */
01327    if (!batch || !batch->head)
01328       return;
01329 
01330    /* move the old CDRs aside, and prepare a new CDR batch */
01331    ast_mutex_lock(&cdr_batch_lock);
01332    oldbatchitems = batch->head;
01333    reset_batch();
01334    ast_mutex_unlock(&cdr_batch_lock);
01335 
01336    /* if configured, spawn a new thread to post these CDRs,
01337       also try to save as much as possible if we are shutting down safely */
01338    if (batchscheduleronly || do_shutdown) {
01339       ast_debug(1, "CDR single-threaded batch processing begins now\n");
01340       do_batch_backend_process(oldbatchitems);
01341    } else {
01342       if (ast_pthread_create_detached_background(&batch_post_thread, NULL, do_batch_backend_process, oldbatchitems)) {
01343          ast_log(LOG_WARNING, "CDR processing thread could not detach, now trying in this thread\n");
01344          do_batch_backend_process(oldbatchitems);
01345       } else {
01346          ast_debug(1, "CDR multi-threaded batch processing begins now\n");
01347       }
01348    }
01349 }
01350 
01351 static int submit_scheduled_batch(const void *data)
01352 {
01353    ast_cdr_submit_batch(0);
01354    /* manually reschedule from this point in time */
01355    cdr_sched = ast_sched_add(sched, batchtime * 1000, submit_scheduled_batch, NULL);
01356    /* returning zero so the scheduler does not automatically reschedule */
01357    return 0;
01358 }
01359 
01360 static void submit_unscheduled_batch(void)
01361 {
01362    /* this is okay since we are not being called from within the scheduler */
01363    AST_SCHED_DEL(sched, cdr_sched);
01364    /* schedule the submission to occur ASAP (1 ms) */
01365    cdr_sched = ast_sched_add(sched, 1, submit_scheduled_batch, NULL);
01366    /* signal the do_cdr thread to wakeup early and do some work (that lazy thread ;) */
01367    ast_mutex_lock(&cdr_pending_lock);
01368    ast_cond_signal(&cdr_pending_cond);
01369    ast_mutex_unlock(&cdr_pending_lock);
01370 }
01371 
01372 void ast_cdr_detach(struct ast_cdr *cdr)
01373 {
01374    struct ast_cdr_batch_item *newtail;
01375    int curr;
01376 
01377    if (!cdr)
01378       return;
01379 
01380    /* maybe they disabled CDR stuff completely, so just drop it */
01381    if (!enabled) {
01382       ast_debug(1, "Dropping CDR !\n");
01383       ast_set_flag(cdr, AST_CDR_FLAG_POST_DISABLED);
01384       ast_cdr_free(cdr);
01385       return;
01386    }
01387 
01388    /* post stuff immediately if we are not in batch mode, this is legacy behaviour */
01389    if (!batchmode) {
01390       post_cdr(cdr);
01391       ast_cdr_free(cdr);
01392       return;
01393    }
01394 
01395    /* otherwise, each CDR gets put into a batch list (at the end) */
01396    ast_debug(1, "CDR detaching from this thread\n");
01397 
01398    /* we'll need a new tail for every CDR */
01399    if (!(newtail = ast_calloc(1, sizeof(*newtail)))) {
01400       post_cdr(cdr);
01401       ast_cdr_free(cdr);
01402       return;
01403    }
01404 
01405    /* don't traverse a whole list (just keep track of the tail) */
01406    ast_mutex_lock(&cdr_batch_lock);
01407    if (!batch)
01408       init_batch();
01409    if (!batch->head) {
01410       /* new batch is empty, so point the head at the new tail */
01411       batch->head = newtail;
01412    } else {
01413       /* already got a batch with something in it, so just append a new tail */
01414       batch->tail->next = newtail;
01415    }
01416    newtail->cdr = cdr;
01417    batch->tail = newtail;
01418    curr = batch->size++;
01419    ast_mutex_unlock(&cdr_batch_lock);
01420 
01421    /* if we have enough stuff to post, then do it */
01422    if (curr >= (batchsize - 1))
01423       submit_unscheduled_batch();
01424 }
01425 
01426 static void *do_cdr(void *data)
01427 {
01428    struct timespec timeout;
01429    int schedms;
01430    int numevents = 0;
01431 
01432    for (;;) {
01433       struct timeval now;
01434       schedms = ast_sched_wait(sched);
01435       /* this shouldn't happen, but provide a 1 second default just in case */
01436       if (schedms <= 0)
01437          schedms = 1000;
01438       now = ast_tvadd(ast_tvnow(), ast_samp2tv(schedms, 1000));
01439       timeout.tv_sec = now.tv_sec;
01440       timeout.tv_nsec = now.tv_usec * 1000;
01441       /* prevent stuff from clobbering cdr_pending_cond, then wait on signals sent to it until the timeout expires */
01442       ast_mutex_lock(&cdr_pending_lock);
01443       ast_cond_timedwait(&cdr_pending_cond, &cdr_pending_lock, &timeout);
01444       numevents = ast_sched_runq(sched);
01445       ast_mutex_unlock(&cdr_pending_lock);
01446       ast_debug(2, "Processed %d scheduled CDR batches from the run queue\n", numevents);
01447    }
01448 
01449    return NULL;
01450 }
01451 
01452 static char *handle_cli_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01453 {
01454    struct ast_cdr_beitem *beitem=NULL;
01455    int cnt=0;
01456    long nextbatchtime=0;
01457 
01458    switch (cmd) {
01459    case CLI_INIT:
01460       e->command = "cdr show status";
01461       e->usage =
01462          "Usage: cdr show status\n"
01463          "  Displays the Call Detail Record engine system status.\n";
01464       return NULL;
01465    case CLI_GENERATE:
01466       return NULL;
01467    }
01468 
01469    if (a->argc > 3)
01470       return CLI_SHOWUSAGE;
01471 
01472    ast_cli(a->fd, "\n");
01473    ast_cli(a->fd, "Call Detail Record (CDR) settings\n");
01474    ast_cli(a->fd, "----------------------------------\n");
01475    ast_cli(a->fd, "  Logging:                    %s\n", enabled ? "Enabled" : "Disabled");
01476    ast_cli(a->fd, "  Mode:                       %s\n", batchmode ? "Batch" : "Simple");
01477    if (enabled) {
01478       ast_cli(a->fd, "  Log unanswered calls:       %s\n", unanswered ? "Yes" : "No");
01479       ast_cli(a->fd, "  Log congestion:             %s\n\n", congestion ? "Yes" : "No");
01480       if (batchmode) {
01481          ast_cli(a->fd, "* Batch Mode Settings\n");
01482          ast_cli(a->fd, "  -------------------\n");
01483          if (batch)
01484             cnt = batch->size;
01485          if (cdr_sched > -1)
01486             nextbatchtime = ast_sched_when(sched, cdr_sched);
01487          ast_cli(a->fd, "  Safe shutdown:              %s\n", batchsafeshutdown ? "Enabled" : "Disabled");
01488          ast_cli(a->fd, "  Threading model:            %s\n", batchscheduleronly ? "Scheduler only" : "Scheduler plus separate threads");
01489          ast_cli(a->fd, "  Current batch size:         %d record%s\n", cnt, ESS(cnt));
01490          ast_cli(a->fd, "  Maximum batch size:         %d record%s\n", batchsize, ESS(batchsize));
01491          ast_cli(a->fd, "  Maximum batch time:         %d second%s\n", batchtime, ESS(batchtime));
01492          ast_cli(a->fd, "  Next batch processing time: %ld second%s\n\n", nextbatchtime, ESS(nextbatchtime));
01493       }
01494       ast_cli(a->fd, "* Registered Backends\n");
01495       ast_cli(a->fd, "  -------------------\n");
01496       AST_RWLIST_RDLOCK(&be_list);
01497       if (AST_RWLIST_EMPTY(&be_list)) {
01498          ast_cli(a->fd, "    (none)\n");
01499       } else {
01500          AST_RWLIST_TRAVERSE(&be_list, beitem, list) {
01501             ast_cli(a->fd, "    %s\n", beitem->name);
01502          }
01503       }
01504       AST_RWLIST_UNLOCK(&be_list);
01505       ast_cli(a->fd, "\n");
01506    }
01507 
01508    return CLI_SUCCESS;
01509 }
01510 
01511 static char *handle_cli_submit(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01512 {
01513    switch (cmd) {
01514    case CLI_INIT:
01515       e->command = "cdr submit";
01516       e->usage =
01517          "Usage: cdr submit\n"
01518          "       Posts all pending batched CDR data to the configured CDR backend engine modules.\n";
01519       return NULL;
01520    case CLI_GENERATE:
01521       return NULL;
01522    }
01523    if (a->argc > 2)
01524       return CLI_SHOWUSAGE;
01525 
01526    submit_unscheduled_batch();
01527    ast_cli(a->fd, "Submitted CDRs to backend engines for processing.  This may take a while.\n");
01528 
01529    return CLI_SUCCESS;
01530 }
01531 
01532 static struct ast_cli_entry cli_submit = AST_CLI_DEFINE(handle_cli_submit, "Posts all pending batched CDR data");
01533 static struct ast_cli_entry cli_status = AST_CLI_DEFINE(handle_cli_status, "Display the CDR status");
01534 
01535 static int do_reload(int reload)
01536 {
01537    struct ast_config *config;
01538    struct ast_variable *v;
01539    int cfg_size;
01540    int cfg_time;
01541    int was_enabled;
01542    int was_batchmode;
01543    int res = 0;
01544    struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
01545 
01546    if ((config = ast_config_load2("cdr.conf", "cdr", config_flags)) == CONFIG_STATUS_FILEUNCHANGED) {
01547       return 0;
01548    }
01549 
01550    ast_mutex_lock(&cdr_batch_lock);
01551 
01552    was_enabled = enabled;
01553    was_batchmode = batchmode;
01554 
01555    batchsize = BATCH_SIZE_DEFAULT;
01556    batchtime = BATCH_TIME_DEFAULT;
01557    batchscheduleronly = BATCH_SCHEDULER_ONLY_DEFAULT;
01558    batchsafeshutdown = BATCH_SAFE_SHUTDOWN_DEFAULT;
01559    enabled = ENABLED_DEFAULT;
01560    batchmode = BATCHMODE_DEFAULT;
01561    unanswered = UNANSWERED_DEFAULT;
01562    congestion = CONGESTION_DEFAULT;
01563 
01564    if (config == CONFIG_STATUS_FILEMISSING || config == CONFIG_STATUS_FILEINVALID) {
01565       ast_mutex_unlock(&cdr_batch_lock);
01566       return 0;
01567    }
01568 
01569    /* don't run the next scheduled CDR posting while reloading */
01570    AST_SCHED_DEL(sched, cdr_sched);
01571 
01572    for (v = ast_variable_browse(config, "general"); v; v = v->next) {
01573       if (!strcasecmp(v->name, "enable")) {
01574          enabled = ast_true(v->value);
01575       } else if (!strcasecmp(v->name, "unanswered")) {
01576          unanswered = ast_true(v->value);
01577       } else if (!strcasecmp(v->name, "congestion")) {
01578          congestion = ast_true(v->value);
01579       } else if (!strcasecmp(v->name, "batch")) {
01580          batchmode = ast_true(v->value);
01581       } else if (!strcasecmp(v->name, "scheduleronly")) {
01582          batchscheduleronly = ast_true(v->value);
01583       } else if (!strcasecmp(v->name, "safeshutdown")) {
01584          batchsafeshutdown = ast_true(v->value);
01585       } else if (!strcasecmp(v->name, "size")) {
01586          if (sscanf(v->value, "%30d", &cfg_size) < 1) {
01587             ast_log(LOG_WARNING, "Unable to convert '%s' to a numeric value.\n", v->value);
01588          } else if (cfg_size < 0) {
01589             ast_log(LOG_WARNING, "Invalid maximum batch size '%d' specified, using default\n", cfg_size);
01590          } else {
01591             batchsize = cfg_size;
01592          }
01593       } else if (!strcasecmp(v->name, "time")) {
01594          if (sscanf(v->value, "%30d", &cfg_time) < 1) {
01595             ast_log(LOG_WARNING, "Unable to convert '%s' to a numeric value.\n", v->value);
01596          } else if (cfg_time < 0) {
01597             ast_log(LOG_WARNING, "Invalid maximum batch time '%d' specified, using default\n", cfg_time);
01598          } else {
01599             batchtime = cfg_time;
01600          }
01601       } else if (!strcasecmp(v->name, "endbeforehexten")) {
01602          ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_END_CDR_BEFORE_H_EXTEN);
01603       } else if (!strcasecmp(v->name, "initiatedseconds")) {
01604          ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_INITIATED_SECONDS);
01605       }
01606    }
01607 
01608    if (enabled && !batchmode) {
01609       ast_log(LOG_NOTICE, "CDR simple logging enabled.\n");
01610    } else if (enabled && batchmode) {
01611       cdr_sched = ast_sched_add(sched, batchtime * 1000, submit_scheduled_batch, NULL);
01612       ast_log(LOG_NOTICE, "CDR batch mode logging enabled, first of either size %d or time %d seconds.\n", batchsize, batchtime);
01613    } else {
01614       ast_log(LOG_NOTICE, "CDR logging disabled, data will be lost.\n");
01615    }
01616 
01617    /* if this reload enabled the CDR batch mode, create the background thread
01618       if it does not exist */
01619    if (enabled && batchmode && (!was_enabled || !was_batchmode) && (cdr_thread == AST_PTHREADT_NULL)) {
01620       ast_cond_init(&cdr_pending_cond, NULL);
01621       if (ast_pthread_create_background(&cdr_thread, NULL, do_cdr, NULL) < 0) {
01622          ast_log(LOG_ERROR, "Unable to start CDR thread.\n");
01623          AST_SCHED_DEL(sched, cdr_sched);
01624       } else {
01625          ast_cli_register(&cli_submit);
01626          ast_register_atexit(ast_cdr_engine_term);
01627          res = 0;
01628       }
01629    /* if this reload disabled the CDR and/or batch mode and there is a background thread,
01630       kill it */
01631    } else if (((!enabled && was_enabled) || (!batchmode && was_batchmode)) && (cdr_thread != AST_PTHREADT_NULL)) {
01632       /* wake up the thread so it will exit */
01633       pthread_cancel(cdr_thread);
01634       pthread_kill(cdr_thread, SIGURG);
01635       pthread_join(cdr_thread, NULL);
01636       cdr_thread = AST_PTHREADT_NULL;
01637       ast_cond_destroy(&cdr_pending_cond);
01638       ast_cli_unregister(&cli_submit);
01639       ast_unregister_atexit(ast_cdr_engine_term);
01640       res = 0;
01641       /* if leaving batch mode, then post the CDRs in the batch,
01642          and don't reschedule, since we are stopping CDR logging */
01643       if (!batchmode && was_batchmode) {
01644          ast_cdr_engine_term();
01645       }
01646    } else {
01647       res = 0;
01648    }
01649 
01650    ast_mutex_unlock(&cdr_batch_lock);
01651    ast_config_destroy(config);
01652    manager_event(EVENT_FLAG_SYSTEM, "Reload", "Module: CDR\r\nMessage: CDR subsystem reload requested\r\n");
01653 
01654    return res;
01655 }
01656 
01657 int ast_cdr_engine_init(void)
01658 {
01659    int res;
01660 
01661    sched = ast_sched_context_create();
01662    if (!sched) {
01663       ast_log(LOG_ERROR, "Unable to create schedule context.\n");
01664       return -1;
01665    }
01666 
01667    ast_cli_register(&cli_status);
01668 
01669    res = do_reload(0);
01670    if (res) {
01671       ast_mutex_lock(&cdr_batch_lock);
01672       res = init_batch();
01673       ast_mutex_unlock(&cdr_batch_lock);
01674    }
01675 
01676    return res;
01677 }
01678 
01679 /* \note This actually gets called a couple of times at shutdown.  Once, before we start
01680    hanging up channels, and then again, after the channel hangup timeout expires */
01681 void ast_cdr_engine_term(void)
01682 {
01683    ast_cdr_submit_batch(batchsafeshutdown);
01684 }
01685 
01686 int ast_cdr_engine_reload(void)
01687 {
01688    return do_reload(1);
01689 }
01690 
01691 int ast_cdr_data_add_structure(struct ast_data *tree, struct ast_cdr *cdr, int recur)
01692 {
01693    struct ast_cdr *tmpcdr;
01694    struct ast_data *level;
01695    struct ast_var_t *variables;
01696    const char *var, *val;
01697    int x = 1, i;
01698    char workspace[256];
01699    char *tmp;
01700 
01701    if (!cdr) {
01702       return -1;
01703    }
01704 
01705    for (tmpcdr = cdr; tmpcdr; tmpcdr = (recur ? tmpcdr->next : NULL)) {
01706       level = ast_data_add_node(tree, "level");
01707       if (!level) {
01708          continue;
01709       }
01710 
01711       ast_data_add_int(level, "level_number", x);
01712 
01713       AST_LIST_TRAVERSE(&tmpcdr->varshead, variables, entries) {
01714          if (variables && (var = ast_var_name(variables)) &&
01715                (val = ast_var_value(variables)) && !ast_strlen_zero(var)
01716                && !ast_strlen_zero(val)) {
01717             ast_data_add_str(level, var, val);
01718          } else {
01719             break;
01720          }
01721       }
01722 
01723       for (i = 0; cdr_readonly_vars[i]; i++) {
01724          workspace[0] = 0; /* null out the workspace, because the cdr_get_tv() won't write anything if time is NULL, so you get old vals */
01725          ast_cdr_getvar(tmpcdr, cdr_readonly_vars[i], &tmp, workspace, sizeof(workspace), 0, 0);
01726          if (!tmp) {
01727             continue;
01728          }
01729          ast_data_add_str(level, cdr_readonly_vars[i], tmp);
01730       }
01731 
01732       x++;
01733    }
01734 
01735    return 0;
01736 }
01737 

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