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asterisk/cdr.c
Anthony Minessale II 4f2438acab This patch adds a new api call: 
int pbx_builtin_serialize_variables(struct ast_channel *chan, char *buf, size_t size);
takes a chan and a char * 'buf' assumed to be 'size' bytes.

The function fills 'buf' with a <CR>('\n') delimited list of name,value pairs in turn delimeted by '='
eg:
SIPCALLID=f30e4e72-f715193f@1.2.3.4
SIPUSERAGENT=Sipura/SPA2000-2.0.6(c)
SIPDOMAIN=1.2.3.4

It returns the acutal number of variables encountered.
If the attempt to fill 'buf' goes beyond 'size' bytes the operation is halted and the incomplete string is returned as is.

To demonstrate a use for this, the "show channel <channame>" command has been retrofitted with the call so it also dumps all of the chan's vars

*CLI> show channel Zap/5-1
 -- General --
           Name: Zap/5-1
           Type: Zap
       UniqueID: 1098480666.17
      Caller ID: 4999
 Caller ID Name: Tony
    DNID Digits: (N/A)
          State: Up (6)
          Rings: 0
   NativeFormat: 68
    WriteFormat: 4
     ReadFormat: 4
1st File Descriptor: 22
      Frames in: 41969
     Frames out: 83240
 Time to Hangup: 0
   Elapsed Time: 0h13m54s
 --   PBX   --
        Context: phone1
      Extension: 4994
       Priority: 2
     Call Group: 2
   Pickup Group: 2
    Application: Dial
           Data: IAX2/ulaw@cube1/00010014994@croip
          Stack: 0
    Blocking in: ast_waitfor_nandfds
Variables:
DIALEDPEERNUMBER=ulaw@cube1/00010014994@croip
DIALEDPEERNAME=IAX2/cube1/3
CALLTYPE=SPEECH
tempvar=tempval


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4051 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2004-10-22 20:59:38 +00:00

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/*
* Asterisk -- A telephony toolkit for Linux.
*
* Call Detail Record API
*
* Copyright (C) 1999-2004, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License.
*
* Includes code and algorithms from the Zapata library.
*
*/
#include <asterisk/lock.h>
#include <asterisk/channel.h>
#include <asterisk/cdr.h>
#include <asterisk/logger.h>
#include <asterisk/callerid.h>
#include <asterisk/causes.h>
#include <asterisk/options.h>
#include <asterisk/utils.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
int ast_default_amaflags = AST_CDR_DOCUMENTATION;
char ast_default_accountcode[20] = "";
AST_MUTEX_DEFINE_STATIC(cdrlock);
static struct ast_cdr_beitem {
char name[20];
char desc[80];
ast_cdrbe be;
struct ast_cdr_beitem *next;
} *bes = NULL;
/*
* We do a lot of checking here in the CDR code to try to be sure we don't ever let a CDR slip
* through our fingers somehow. If someone allocates a CDR, it must be completely handled normally
* or a WARNING shall be logged, so that we can best keep track of any escape condition where the CDR
* isn't properly generated and posted.
*/
int ast_cdr_register(char *name, char *desc, ast_cdrbe be)
{
struct ast_cdr_beitem *i;
if (!name)
return -1;
if (!be) {
ast_log(LOG_WARNING, "CDR engine '%s' lacks backend\n", name);
return -1;
}
ast_mutex_lock(&cdrlock);
i = bes;
while(i) {
if (!strcasecmp(name, i->name))
break;
i = i->next;
}
ast_mutex_unlock(&cdrlock);
if (i) {
ast_log(LOG_WARNING, "Already have a CDR backend called '%s'\n", name);
return -1;
}
i = malloc(sizeof(struct ast_cdr_beitem));
if (!i)
return -1;
memset(i, 0, sizeof(struct ast_cdr_beitem));
strncpy(i->name, name, sizeof(i->name) - 1);
strncpy(i->desc, desc, sizeof(i->desc) - 1);
i->be = be;
ast_mutex_lock(&cdrlock);
i->next = bes;
bes = i;
ast_mutex_unlock(&cdrlock);
return 0;
}
void ast_cdr_unregister(char *name)
{
struct ast_cdr_beitem *i, *prev = NULL;
ast_mutex_lock(&cdrlock);
i = bes;
while(i) {
if (!strcasecmp(name, i->name)) {
if (prev)
prev->next = i->next;
else
bes = i->next;
break;
}
i = i->next;
}
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Unregistered '%s' CDR backend\n", name);
ast_mutex_unlock(&cdrlock);
if (i)
free(i);
}
void ast_cdr_free(struct ast_cdr *cdr)
{
char *chan;
struct ast_cdr *next;
while (cdr) {
next = cdr->next;
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (!ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' not posted\n", chan);
if (!cdr->end.tv_sec && !cdr->end.tv_usec)
ast_log(LOG_WARNING, "CDR on channel '%s' lacks end\n", chan);
if (!cdr->start.tv_sec && !cdr->start.tv_usec)
ast_log(LOG_WARNING, "CDR on channel '%s' lacks start\n", chan);
free(cdr);
cdr = next;
}
}
struct ast_cdr *ast_cdr_alloc(void)
{
struct ast_cdr *cdr;
cdr = malloc(sizeof(struct ast_cdr));
if (cdr) {
memset(cdr, 0, sizeof(struct ast_cdr));
}
return cdr;
}
void ast_cdr_start(struct ast_cdr *cdr)
{
char *chan;
while (cdr) {
if (!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if (cdr->start.tv_sec || cdr->start.tv_usec)
ast_log(LOG_WARNING, "CDR on channel '%s' already started\n", chan);
gettimeofday(&cdr->start, NULL);
}
cdr = cdr->next;
}
}
void ast_cdr_answer(struct ast_cdr *cdr)
{
char *chan;
while (cdr) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if (cdr->disposition < AST_CDR_ANSWERED)
cdr->disposition = AST_CDR_ANSWERED;
if (!cdr->answer.tv_sec && !cdr->answer.tv_usec) {
gettimeofday(&cdr->answer, NULL);
}
cdr = cdr->next;
}
}
void ast_cdr_busy(struct ast_cdr *cdr)
{
char *chan;
while (cdr) {
if (!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if (cdr->disposition < AST_CDR_BUSY)
cdr->disposition = AST_CDR_BUSY;
}
cdr = cdr->next;
}
}
void ast_cdr_failed(struct ast_cdr *cdr)
{
char *chan;
while (cdr) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED))
cdr->disposition = AST_CDR_FAILED;
cdr = cdr->next;
}
}
int ast_cdr_disposition(struct ast_cdr *cdr, int cause)
{
int res = 0;
while (cdr) {
switch(cause) {
case AST_CAUSE_BUSY:
ast_cdr_busy(cdr);
break;
case AST_CAUSE_FAILURE:
ast_cdr_failed(cdr);
break;
case AST_CAUSE_NORMAL:
break;
case AST_CAUSE_NOTDEFINED:
res = -1;
break;
default:
res = -1;
ast_log(LOG_WARNING, "We don't handle that cause yet\n");
}
cdr = cdr->next;
}
return res;
}
void ast_cdr_setdestchan(struct ast_cdr *cdr, char *chann)
{
char *chan;
while (cdr) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED))
strncpy(cdr->dstchannel, chann, sizeof(cdr->dstchannel) - 1);
cdr = cdr->next;
}
}
void ast_cdr_setapp(struct ast_cdr *cdr, char *app, char *data)
{
char *chan;
while (cdr) {
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if (!app)
app = "";
strncpy(cdr->lastapp, app, sizeof(cdr->lastapp) - 1);
if (!data)
data = "";
strncpy(cdr->lastdata, data, sizeof(cdr->lastdata) - 1);
}
cdr = cdr->next;
}
}
int ast_cdr_setcid(struct ast_cdr *cdr, struct ast_channel *c)
{
char tmp[AST_MAX_EXTENSION] = "";
char *num;
while (cdr) {
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
/* Grab source from ANI or normal Caller*ID */
if (c->cid.cid_ani)
num = c->cid.cid_ani;
else
num = c->cid.cid_num;
if (c->cid.cid_name && num)
snprintf(tmp, sizeof(tmp), "\"%s\" <%s>", c->cid.cid_name, num);
else if (c->cid.cid_name)
strncpy(tmp, c->cid.cid_name, sizeof(tmp) - 1);
else if (num)
strncpy(tmp, num, sizeof(tmp) - 1);
else
strcpy(tmp, "");
strncpy(cdr->clid, tmp, sizeof(cdr->clid) - 1);
if (num)
strncpy(cdr->src, num, sizeof(cdr->src) - 1);
else
strcpy(cdr->src, "");
}
cdr = cdr->next;
}
return 0;
}
int ast_cdr_init(struct ast_cdr *cdr, struct ast_channel *c)
{
char *chan;
char *num;
char tmp[AST_MAX_EXTENSION] = "";
while (cdr) {
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (!ast_strlen_zero(cdr->channel))
ast_log(LOG_WARNING, "CDR already initialized on '%s'\n", chan);
strncpy(cdr->channel, c->name, sizeof(cdr->channel) - 1);
cdr->chan = c;
/* Grab source from ANI or normal Caller*ID */
if (c->cid.cid_ani)
num = c->cid.cid_ani;
else
num = c->cid.cid_num;
if (c->cid.cid_name && num)
snprintf(tmp, sizeof(tmp), "\"%s\" <%s>", c->cid.cid_name, num);
else if (c->cid.cid_name)
strncpy(tmp, c->cid.cid_name, sizeof(tmp) - 1);
else if (num)
strncpy(tmp, num, sizeof(tmp) - 1);
else
strcpy(tmp, "");
strncpy(cdr->clid, tmp, sizeof(cdr->clid) - 1);
if (num)
strncpy(cdr->src, num, sizeof(cdr->src) - 1);
else
strcpy(cdr->src, "");
if (c->_state == AST_STATE_UP)
cdr->disposition = AST_CDR_ANSWERED;
else
cdr->disposition = AST_CDR_NOANSWER;
if (c->amaflags)
cdr->amaflags = c->amaflags;
else
cdr->amaflags = ast_default_amaflags;
strncpy(cdr->accountcode, c->accountcode, sizeof(cdr->accountcode) - 1);
/* Destination information */
strncpy(cdr->dst, c->exten, sizeof(cdr->dst) - 1);
strncpy(cdr->dcontext, c->context, sizeof(cdr->dcontext) - 1);
/* Unique call identifier */
strncpy(cdr->uniqueid, c->uniqueid, sizeof(cdr->uniqueid) - 1);
}
cdr = cdr->next;
}
return 0;
}
void ast_cdr_end(struct ast_cdr *cdr)
{
char *chan;
while (cdr) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if (!cdr->start.tv_sec && !cdr->start.tv_usec)
ast_log(LOG_WARNING, "CDR on channel '%s' has not started\n", chan);
if (!cdr->end.tv_sec && !cdr->end.tv_usec)
gettimeofday(&cdr->end, NULL);
cdr = cdr->next;
}
}
char *ast_cdr_disp2str(int disposition)
{
switch (disposition) {
case AST_CDR_NOANSWER:
return "NO ANSWER";
case AST_CDR_FAILED:
return "FAILED";
case AST_CDR_BUSY:
return "BUSY";
case AST_CDR_ANSWERED:
return "ANSWERED";
default:
return "UNKNOWN";
}
}
char *ast_cdr_flags2str(int flag)
{
switch(flag) {
case AST_CDR_OMIT:
return "OMIT";
case AST_CDR_BILLING:
return "BILLING";
case AST_CDR_DOCUMENTATION:
return "DOCUMENTATION";
}
return "Unknown";
}
int ast_cdr_setaccount(struct ast_channel *chan, const char *account)
{
struct ast_cdr *cdr = chan->cdr;
strncpy(chan->accountcode, account, sizeof(chan->accountcode) - 1);
while (cdr) {
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED))
strncpy(cdr->accountcode, chan->accountcode, sizeof(cdr->accountcode) - 1);
cdr = cdr->next;
}
return 0;
}
int ast_cdr_setamaflags(struct ast_channel *chan, const char *flag)
{
struct ast_cdr *cdr = chan->cdr;
int newflag;
newflag = ast_cdr_amaflags2int(flag);
if (newflag) {
cdr->amaflags = newflag;
}
return 0;
}
int ast_cdr_setuserfield(struct ast_channel *chan, const char *userfield)
{
struct ast_cdr *cdr = chan->cdr;
while (cdr) {
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED))
strncpy(cdr->userfield, userfield, sizeof(cdr->userfield) - 1);
cdr = cdr->next;
}
return 0;
}
int ast_cdr_appenduserfield(struct ast_channel *chan, const char *userfield)
{
struct ast_cdr *cdr = chan->cdr;
while (cdr)
{
int len = strlen(cdr->userfield);
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED))
strncpy(cdr->userfield+len, userfield, sizeof(cdr->userfield) - len - 1);
cdr = cdr->next;
}
return 0;
}
int ast_cdr_update(struct ast_channel *c)
{
struct ast_cdr *cdr = c->cdr;
char *num;
char tmp[AST_MAX_EXTENSION] = "";
/* Grab source from ANI or normal Caller*ID */
while (cdr) {
if(!ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
/* Grab source from ANI or normal Caller*ID */
if (c->cid.cid_ani)
num = c->cid.cid_ani;
else
num = c->cid.cid_num;
if (c->cid.cid_name && num)
snprintf(tmp, sizeof(tmp), "\"%s\" <%s>", c->cid.cid_name, num);
else if (c->cid.cid_name)
strncpy(tmp, c->cid.cid_name, sizeof(tmp) - 1);
else if (num)
strncpy(tmp, num, sizeof(tmp) - 1);
else
strcpy(tmp, "");
strncpy(cdr->clid, tmp, sizeof(cdr->clid) - 1);
if (num)
strncpy(cdr->src, num, sizeof(cdr->src) - 1);
else
strcpy(cdr->src, "");
/* Copy account code et-al */
strncpy(cdr->accountcode, c->accountcode, sizeof(cdr->accountcode) - 1);
/* Destination information */
if (ast_strlen_zero(c->macroexten))
strncpy(cdr->dst, c->exten, sizeof(cdr->dst) - 1);
else
strncpy(cdr->dst, c->macroexten, sizeof(cdr->dst) - 1);
if (ast_strlen_zero(c->macrocontext))
strncpy(cdr->dcontext, c->context, sizeof(cdr->dcontext) - 1);
else
strncpy(cdr->dcontext, c->macrocontext, sizeof(cdr->dcontext) - 1);
}
cdr = cdr->next;
}
return 0;
}
int ast_cdr_amaflags2int(const char *flag)
{
if (!strcasecmp(flag, "default"))
return 0;
if (!strcasecmp(flag, "omit"))
return AST_CDR_OMIT;
if (!strcasecmp(flag, "billing"))
return AST_CDR_BILLING;
if (!strcasecmp(flag, "documentation"))
return AST_CDR_DOCUMENTATION;
return -1;
}
void ast_cdr_post(struct ast_cdr *cdr)
{
char *chan;
struct ast_cdr_beitem *i;
while (cdr) {
chan = !ast_strlen_zero(cdr->channel) ? cdr->channel : "<unknown>";
if (ast_cdr_has_flag(cdr,AST_CDR_FLAG_POSTED))
ast_log(LOG_WARNING, "CDR on channel '%s' already posted\n", chan);
if (!cdr->end.tv_sec && !cdr->end.tv_usec)
ast_log(LOG_WARNING, "CDR on channel '%s' lacks end\n", chan);
if (!cdr->start.tv_sec && !cdr->start.tv_usec)
ast_log(LOG_WARNING, "CDR on channel '%s' lacks start\n", chan);
cdr->duration = cdr->end.tv_sec - cdr->start.tv_sec + (cdr->end.tv_usec - cdr->start.tv_usec) / 1000000;
if (cdr->answer.tv_sec || cdr->answer.tv_usec) {
cdr->billsec = cdr->end.tv_sec - cdr->answer.tv_sec + (cdr->end.tv_usec - cdr->answer.tv_usec) / 1000000;
} else
cdr->billsec = 0;
ast_cdr_add_flag(cdr,AST_CDR_FLAG_POSTED);
ast_mutex_lock(&cdrlock);
i = bes;
while(i) {
i->be(cdr);
i = i->next;
}
ast_mutex_unlock(&cdrlock);
cdr = cdr->next;
}
}
void ast_cdr_reset(struct ast_cdr *cdr, int flags)
{
while (cdr) {
/* Post if requested */
if (ast_cdr_compare_flag(flags,AST_CDR_FLAG_LOCKED) || !ast_cdr_has_flag(cdr,AST_CDR_FLAG_LOCKED)) {
if (ast_cdr_compare_flag(flags,AST_CDR_FLAG_POSTED)) {
ast_cdr_end(cdr);
ast_cdr_post(cdr);
}
/* Reset to initial state */
cdr->flags=0;
memset(&cdr->start, 0, sizeof(cdr->start));
memset(&cdr->end, 0, sizeof(cdr->end));
memset(&cdr->answer, 0, sizeof(cdr->answer));
cdr->billsec = 0;
cdr->duration = 0;
ast_cdr_start(cdr);
cdr->disposition = AST_CDR_NOANSWER;
}
cdr = cdr->next;
}
}
struct ast_cdr *ast_cdr_append(struct ast_cdr *cdr, struct ast_cdr *newcdr)
{
struct ast_cdr *ret;
if (cdr) {
ret = cdr;
while(cdr->next)
cdr = cdr->next;
cdr->next = newcdr;
} else {
ret = newcdr;
}
return ret;
}
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