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cookbooks:devel:pseudovariables [2019/05/21 16:10] miconda [$sndto(name)] |
cookbooks:devel:pseudovariables [2020/12/12 19:28] miconda [$def(name) - Defined Value As Number] |
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{{ : | {{ : | ||
- | ====== Kamailio SIP Server v5.3.x (devel): Pseudo-Variables ====== | + | ====== |
+ | |||
+ | Version: | ||
===== Introduction ===== | ===== Introduction ===== | ||
Line 20: | Line 22: | ||
* avpops | * avpops | ||
* htable | * htable | ||
+ | * http_async_client | ||
* textops | * textops | ||
* uac | * uac | ||
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**$aU** - whole username from Authorization or Proxy-Authorization header | **$aU** - whole username from Authorization or Proxy-Authorization header | ||
- | ==== $Au - Acc username ==== | + | ==== $Au - Acc username |
- | **$Au** - username for accounting purposes. It's a selective pseudo variable (inherited from acc module). It returns auth username ($au) if exists or From username | + | **$Au** - username for accounting purposes. It's a selective pseudo variable (inherited from acc module). It returns |
+ | ==== $AU - Acc username ==== | ||
+ | **$AU** - username for accounting purposes. It's a selective pseudo variable (inherited from acc module). It returns the auth username ($au) if exists or From user ($fU) otherwise. | ||
==== $branch(name) - Branch attributes ==== | ==== $branch(name) - Branch attributes ==== | ||
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**$dd** - reference to domain of destination uri (without port) | **$dd** - reference to domain of destination uri (without port) | ||
+ | ==== $def(name) - Defined Value ==== | ||
+ | **$def(name)** - return a defined value. | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | #!define ABC xyz | ||
+ | |||
+ | xlog(" | ||
+ | </ | ||
+ | |||
+ | ==== $defn(name) - Defined Value As Number ==== | ||
+ | |||
+ | **$defn(name)** - return a defined value as a signed integer. | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | #!define FLT_ACC 1 | ||
+ | |||
+ | xlog(" | ||
+ | </ | ||
==== $di - Diversion header URI ==== | ==== $di - Diversion header URI ==== | ||
Line 225: | Line 252: | ||
If loose_route() returns TRUE a destination uri is set according to the first Route header. | If loose_route() returns TRUE a destination uri is set according to the first Route header. | ||
- | $du is also set if lookup() function of ' | + | $du is also set if lookup() function of ' |
- | set $du to any SIP URI. | + | if you use the path functionality. The function handle_ruri_alias() from the nathelper |
+ | module will also set it. You can set $du to any SIP URI. | ||
| | ||
| | ||
Line 244: | Line 272: | ||
**$fn** - reference to display name of ' | **$fn** - reference to display name of ' | ||
- | ==== $fs - Forced | + | ==== $fs - Forced |
- | **$fs** - reference to the forced socket for message | + | **$fs** - reference to the forced |
<fc # | <fc # | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | listen=udp: | ||
+ | ... | ||
+ | $fs = " | ||
+ | </ | ||
+ | |||
+ | ==== $fsn - Forced Send Socket Name ==== | ||
+ | |||
+ | **$fsn** - reference to the name of the forced send socket for the SIP message. The name can be assigned to this variable to select a send socket via its name. | ||
+ | |||
+ | <code c> | ||
+ | listen=udp: | ||
+ | ... | ||
+ | $fsn = " | ||
+ | ... | ||
+ | $fs = " | ||
+ | xdbg(" | ||
+ | </ | ||
==== $ft - From tag ==== | ==== $ft - From tag ==== | ||
Line 268: | Line 317: | ||
Note that changing the From: header may break backwards compatibility with SIP 1.0 devices. | Note that changing the From: header may break backwards compatibility with SIP 1.0 devices. | ||
+ | |||
==== $fU - From URI username ==== | ==== $fU - From URI username ==== | ||
Line 275: | Line 325: | ||
Note that changing the From: header may break backwards compatibility with SIP 1.0 devices. | Note that changing the From: header may break backwards compatibility with SIP 1.0 devices. | ||
+ | |||
+ | ==== $fUl - From URI Username Length ==== | ||
+ | |||
+ | **$fUl** - length of the username in the From URI | ||
+ | |||
==== $mb - SIP message buffer ==== | ==== $mb - SIP message buffer ==== | ||
**$mb** - reference to SIP message buffer | **$mb** - reference to SIP message buffer | ||
+ | |||
+ | ==== $mbu - updated SIP message buffer ==== | ||
+ | |||
+ | **$mbu** - reference to updated SIP message buffer, after applying changes | ||
==== $mf - Flags ==== | ==== $mf - Flags ==== | ||
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**$oU** - reference to username in request' | **$oU** - reference to username in request' | ||
+ | |||
+ | ==== $oUl - Original R-URI Username Length ==== | ||
+ | |||
+ | **$oUl** - the length of the username in the original R-URI | ||
==== $pd - Domain in P-Preferred-Identity header URI ==== | ==== $pd - Domain in P-Preferred-Identity header URI ==== | ||
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<fc # | <fc # | ||
+ | |||
+ | ==== $rUl - R-URI Username Length ==== | ||
+ | |||
+ | **$rU** - the length of the username in R-URI | ||
==== $rv - SIP message version ==== | ==== $rv - SIP message version ==== | ||
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**$tU** - reference to username in URI of ' | **$tU** - reference to username in URI of ' | ||
+ | |||
+ | ==== $tUl - To URI Username Length ==== | ||
+ | |||
+ | **$tU** - the length of the username in To URI | ||
==== $Tb - Startup timestamp ==== | ==== $Tb - Startup timestamp ==== | ||
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**$env(NAME)** - value of the environment variable named NAME | **$env(NAME)** - value of the environment variable named NAME | ||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | xdbg(" | ||
+ | </ | ||
===== $avp(id) - AVPs ===== | ===== $avp(id) - AVPs ===== | ||
Line 701: | Line 777: | ||
===== $xavp(id) - XAVPs ===== | ===== $xavp(id) - XAVPs ===== | ||
- | xavp - extended AVP' | + | **xavp** - eXtended AVPs - are variables |
+ | |||
+ | They work like a stack, | ||
+ | |||
+ | Each xavp has a string | ||
+ | |||
+ | To assign a single | ||
<code c> | <code c> | ||
- | $xavp(root=> | + | $xavp(root)=" |
+ | $xavp(root)=intnumber; | ||
+ | </code> | ||
+ | |||
+ | To assign a named value use: | ||
+ | |||
+ | <code c> | ||
+ | $xavp(root=> | ||
+ | $xavp(root=> | ||
</ | </ | ||
Like avps, xavp act like a stack. To refer to an existing value, use an index. The newest xavp has index zero [0]. | Like avps, xavp act like a stack. To refer to an existing value, use an index. The newest xavp has index zero [0]. | ||
+ | |||
<code c> | <code c> | ||
- | $xavp(root[0]=> | + | $xavp(root[0]=> |
</ | </ | ||
If you assign a value without an index, a new xavp is allocated and the old one is pushed up the stack, becoming index [1]. Old index [1] becomes [2] etc. | If you assign a value without an index, a new xavp is allocated and the old one is pushed up the stack, becoming index [1]. Old index [1] becomes [2] etc. | ||
+ | |||
<code c> | <code c> | ||
- | $xavp(example=>name)="one"; | + | # new item (person => [(lastname = " |
- | #create | + | $xavp(person=>lastname)="Smith"; |
- | $xavp(example=>name)="two"; | + | |
- | #add extra value to "two" | + | # add new item (person => [(lastname = " |
- | $xavp(example[0]=>value)=" | + | $xavp(person=>lastname)="Doe"; |
- | #add value to first variable - "one" | + | |
- | $xavp(example[1]=>value)="Anna"; | + | # add another named value to the last example item |
+ | # | ||
+ | $xavp(person[0]=>firstname)=" | ||
+ | |||
+ | # add another named value to first example item | ||
+ | # | ||
+ | xavp(person[1]=>firstname)="Alice"; | ||
</ | </ | ||
Line 725: | Line 824: | ||
Another example: | Another example: | ||
<code c> | <code c> | ||
- | # Create | + | # create |
$xavp(sf=> | $xavp(sf=> | ||
- | #assign | + | # add named values |
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
- | #create new xavp, moving previous one to sf[1] | + | # create new (the second) root xavp with a named value of string type, moving previous one to sf[1] |
$xavp(sf=> | $xavp(sf=> | ||
+ | # add named values (child values) | ||
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
- | #Create a third xavp | + | # create new (the third) xavp with a named value of string type, moving previous one to sf[1] and the other one to sf[2] |
$xavp(sf=> | $xavp(sf=> | ||
+ | # add named values (child values) | ||
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
$xavp(sf[0]=> | $xavp(sf[0]=> | ||
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</ | </ | ||
- | xavps are read and write variables. You can create multilevel xavps, as xavps may contain xavps. | + | xavps are read and write variables. |
+ | ===== $xavu(id) - XAVUs ===== | ||
+ | |||
+ | Similar to XAVPs, but with single value items, therefore there are no indexes in the naming format. XAVUs are also stored in transaction context and destroyed when the transaction is terminated. | ||
+ | |||
+ | Examples: | ||
+ | |||
+ | <code c> | ||
+ | $xavu(x) = 123; # <- set the value | ||
+ | $xavu(x) = 234; # <- update to the value, not adding to a list like for xavps | ||
+ | $xavu(x) = $null; # <- delete the xavu | ||
+ | $xavu(a=> | ||
+ | </ | ||
+ | |||
+ | ===== $xavi(id) - XAVIs ===== | ||
+ | |||
+ | Similar to XAVPs, but with key names are case insensitive. XAVIs are also stored in transaction context and destroyed when the transaction is terminated. | ||
+ | |||
+ | |||
+ | Examples: | ||
+ | |||
+ | <code c> | ||
+ | $xavi(WhatEver=> | ||
+ | # $xavi(whatever[0]=> | ||
+ | </ | ||
===== $hdr(name) - Headers ===== | ===== $hdr(name) - Headers ===== | ||
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<fc # | <fc # | ||
+ | ===== $dsv(key) - Dispatcher variables ===== | ||
+ | |||
+ | Return attributes related to dispatcher module. | ||
+ | |||
+ | The key can be: | ||
+ | |||
+ | * code - the SIP response code that caused the execution of event_route ' | ||
+ | * reason - the SIP response reason that caused the execution of event_route ' | ||
+ | * flags - flags set internally when executing event_route ' | ||
===== $time(name) - Broken-down time ===== | ===== $time(name) - Broken-down time ===== | ||
Line 977: | Line 1111: | ||
</ | </ | ||
- | ===== Benchmark module Pseudo-Variables | + | ===== SIPDUMP Module ===== |
+ | |||
+ | ==== $sipdump(name) ==== | ||
+ | |||
+ | **$sipdump(name)** | ||
+ | |||
+ | The name can be: | ||
+ | |||
+ | * tag - the tag of processing (rcv or snd) | ||
+ | * buf - entire message buffer as string | ||
+ | * len - length of the message (length of above buf) | ||
+ | * af - address family | ||
+ | * src_ip - source IP address | ||
+ | * dst_ip - destination IP address | ||
+ | * src_port - port of source address | ||
+ | * dst_port - port of source address | ||
+ | * proto - transport protocol | ||
+ | |||
+ | Example: | ||
+ | |||
+ | <code c> | ||
+ | |||
+ | event_route[sipdump: | ||
+ | if($sipdump(len) > 1024) { | ||
+ | ... | ||
+ | } | ||
+ | } | ||
+ | </ | ||
+ | |||
+ | |||
+ | ===== Benchmark Module | ||
==== $BM_time_diff ==== | ==== $BM_time_diff ==== | ||
$BM_time_diff - the time difference elapsed between calls of bm_start_timer(name) and bm_log_timer(name). The value is 0 if no bm_log_timer() was called. | $BM_time_diff - the time difference elapsed between calls of bm_start_timer(name) and bm_log_timer(name). The value is 0 if no bm_log_timer() was called. | ||
- | ===== Dialog | + | ===== Dialog |
==== $dlg(attr) ==== | ==== $dlg(attr) ==== | ||
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The ' | The ' | ||
- | ===== Erlang | + | ===== Erlang |
- | ==== Erlang pseudo-variable attributes | + | ==== Attributes |
* type - get variable type. Possible types are: atom, integer, list, string, tuple, pid and ref. | * type - get variable type. Possible types are: atom, integer, list, string, tuple, pid and ref. | ||
Line 1049: | Line 1213: | ||
==== $erl_atom(name) ==== | ==== $erl_atom(name) ==== | ||
+ | |||
// | // | ||
Erlang atom is a literal, a constant with name. Formatted output pseudo variable | Erlang atom is a literal, a constant with name. Formatted output pseudo variable | ||
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module. | module. | ||
- | ===== HTable | + | ===== HTable |
==== $sht(htable=> | ==== $sht(htable=> | ||
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Access hash table entries. | Access hash table entries. | ||
- | <fc # | + | <fc # |
The “htname” must be a hash table name defined via “htable” parameter. | The “htname” must be a hash table name defined via “htable” parameter. | ||
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} | } | ||
</ | </ | ||
- | ===== Memcached | + | ===== Memcached |
==== $mct(key) ==== | ==== $mct(key) ==== | ||
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... | ... | ||
</ | </ | ||
+ | |||
+ | ===== http_async_client Module ===== | ||
+ | |||
+ | ==== $http_req_id ==== | ||
+ | |||
+ | The $http_req_id read-only variable can be used in REQUEST_ROUTE to retrive the unique identifier for a query after sending it or in the HTTP callback route to retrive the id of the query the reply belongs to. Useful mainly in non-transactional context. | ||
+ | |||
+ | ==== $http_req(key) ==== | ||
+ | |||
+ | The $http_req(key) write-only variable can be used to set custom parameters before sending a HTTP query. | ||
+ | |||
+ | **key** can be one of: | ||
+ | * all: if set to $null, resets all the parameters to their default value (the ones defined in modparam) | ||
+ | * hdr: sets/ | ||
+ | * body: sets/ | ||
+ | * method: sets the HTTP method: either " | ||
+ | * timeout: sets the HTTP timeout. (Note, this timeout should be normally less than tm.fr_timer timeout, because transaction timeout has a higher priority over HTTP timeout) | ||
+ | * tls_client_cert: | ||
+ | * tls_client_key: | ||
+ | * tls_ca_path: | ||
+ | * authmethod: Sets the preferred authentication mode for HTTP/HTTPS requests. The value is a bitmap and multiple methods can be used. Note that in this case, the CURL library will make an extra request to discover server-supported authentication methods. You may want to use a specific value. Valid values are: | ||
+ | * 1 - BASIC authentication | ||
+ | * 2 - HTTP Digest authentication | ||
+ | * 4 - GSS-Negotiate authentication | ||
+ | * 8 - NTLM authentication | ||
+ | * 16 - HTTP Digest with IE flavour. | ||
+ | * (Default value is 3 - BASIC and Digest authentication.) | ||
+ | * username: sets the username to use for authenticated requests | ||
+ | * password: sets the password to use for authenticated requests | ||
+ | * suspend: if set to 0 it doesn' | ||
+ | * tcp_keepalive: | ||
+ | * tcp_ka_idle: | ||
+ | * tcp_ka_interval: | ||
+ | |||
+ | ==== Other read-only variables ==== | ||
+ | |||
+ | The following read-only pseudo variables can only be used in the callback routes executed by http_async_query() | ||
+ | |||
+ | === $http_ok === | ||
+ | 1 if cURL executed the request successfully, | ||
+ | |||
+ | === $http_err === | ||
+ | cURL error string if an error occurred, $null otherwise. | ||
+ | |||
+ | === $http_rs === | ||
+ | HTTP status. | ||
+ | |||
+ | === $http_rr === | ||
+ | HTTP reason phrase. | ||
+ | |||
+ | === $http_hdr(Name) === | ||
+ | Value of the Name header (the $(http_hdr(Name)[N]) syntax can also be used, check the SIP $hdr() PV documentation for details). | ||
+ | |||
+ | === $http_mb and $http_ml === | ||
+ | HTTP response buffer (including headers) and length. | ||
+ | |||
+ | === $http_rb and $http_bs === | ||
+ | HTTP response body and body length, | ||
===== XMLOPS Pseudo-Variables ===== | ===== XMLOPS Pseudo-Variables ===== | ||
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</ | </ | ||
- | ===== TMX module Pseudo-Variables | + | ===== TMX Module |
==== $T_branch_idx ==== | ==== $T_branch_idx ==== | ||
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- | ===== UAC module Pseudo-Variables | + | ===== UAC Module |
==== $uac_req(key) ==== | ==== $uac_req(key) ==== | ||
Line 1480: | Line 1703: | ||
} | } | ||
</ | </ | ||
- | ===== Nathelper | + | ===== Nathelper |
==== $rr_count ==== | ==== $rr_count ==== | ||
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* If topmost Record Route in received SIP request or reply is a double Record Route, value of $rr_top_count is 2. If it a single Record Route, value of $rr_top_count is 1. If there is no Record Route(s), value of $rr_top_count is 0. | * If topmost Record Route in received SIP request or reply is a double Record Route, value of $rr_top_count is 2. If it a single Record Route, value of $rr_top_count is 1. If there is no Record Route(s), value of $rr_top_count is 0. | ||
- | ===== MQueue | + | ===== MQueue |
==== $mqk(q) ==== | ==== $mqk(q) ==== | ||
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</ | </ | ||
- | ===== TLS module Pseudo-Variables | + | ===== TLS Module |
==== $tls_version ==== | ==== $tls_version ==== | ||
Line 1692: | Line 1915: | ||
==== $tls_peer_subject_unit ==== | ==== $tls_peer_subject_unit ==== | ||
organizationalUnitName in the subject section of the certificate. String type. | organizationalUnitName in the subject section of the certificate. String type. | ||
+ | ==== $tls_peer_subject_uid ==== | ||
+ | UID in the subject section of the certificate. String type. | ||
==== $tls_peer_issuer_unit ==== | ==== $tls_peer_issuer_unit ==== | ||
organizationalUnitName in the issuer section of the certificate. String type. | organizationalUnitName in the issuer section of the certificate. String type. | ||
==== $tls_my_subject_unit ==== | ==== $tls_my_subject_unit ==== | ||
organizationalUnitName in the subject section of the certificate. String type. | organizationalUnitName in the subject section of the certificate. String type. | ||
+ | ==== $tls_my_subject_uid ==== | ||
+ | UID in the subject section of the certificate. String type. | ||
==== $tls_my_issuer_unit ==== | ==== $tls_my_issuer_unit ==== | ||
organizationalUnitName in the issuer section of the certificate. String type. | organizationalUnitName in the issuer section of the certificate. String type. | ||
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==== $tls_peer_server_name ==== | ==== $tls_peer_server_name ==== | ||
The SNI server name of the peer | The SNI server name of the peer | ||
+ | |||
+ | ==== $tls_peer_raw_cert ==== | ||
+ | The raw PEM-encoded client certificate. String type. | ||
+ | |||
+ | ==== $tls_my_raw_cert ==== | ||
+ | The raw PEM-encoded client certificate. String type. | ||
+ | |||
+ | ==== $tls_peer_urlencoded_cert ==== | ||
+ | The PEM-encoded client certificate, | ||
+ | |||
+ | ==== $tls_my_urlencoded_cert ==== | ||
+ | The PEM-encoded client certificate, | ||
===== SIP Message Attributes ===== | ===== SIP Message Attributes ===== | ||
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* $msg(fline) - sip message first line | * $msg(fline) - sip message first line | ||
- | ===== XHTTP module Pseudo-Variables | + | ===== XHTTP Module |
==== $hu ==== | ==== $hu ==== | ||
Line 1754: | Line 1993: | ||
* URL of http request. | * URL of http request. | ||
- | ===== MSRP Module | + | ===== MSRP Module ===== |
This class of pseudo-variables is exported by MSRP module and give access to attributes of MSRP frames. | This class of pseudo-variables is exported by MSRP module and give access to attributes of MSRP frames. | ||
Line 1823: | Line 2062: | ||
The internal integer id for TCP/TLS connection. | The internal integer id for TCP/TLS connection. | ||
- | ===== SIPT module Pseudo-Variables | + | ===== SIPT Module |
==== $sipt(calling_party_number.presentation) / $sipt_presentation ==== | ==== $sipt(calling_party_number.presentation) / $sipt_presentation ==== | ||
Line 2038: | Line 2277: | ||
* body - the body of the JSONRPC response | * body - the body of the JSONRPC response | ||
- | ===== Presence Module | + | ===== Presence Module ===== |
==== $subs(key) - Subscription Attributes ==== | ==== $subs(key) - Subscription Attributes ==== | ||
Line 2047: | Line 2286: | ||
* uri - subscription URI. Useful in particular for subscriptions within the dialog, when the request URI in SUBSCRIBE is the Contact address from the initial subscription. | * uri - subscription URI. Useful in particular for subscriptions within the dialog, when the request URI in SUBSCRIBE is the Contact address from the initial subscription. | ||
- | ===== Registrar Module | + | ===== Registrar Module ===== |
==== $ulc(profile=> | ==== $ulc(profile=> | ||
Line 2055: | Line 2294: | ||
It must be used after a call of “reg_fetch_contacts()”. | It must be used after a call of “reg_fetch_contacts()”. | ||
- | ===== sipcapture | + | ===== Sipcapture |
==== $hep(key) - HEP Packet Attributes ==== | ==== $hep(key) - HEP Packet Attributes ==== | ||
Line 2092: | Line 2331: | ||
===== sdpops module variables ===== | ===== sdpops module variables ===== | ||
- | * $sdp(body) - full SDP body (read only) | + | * $sdp(body) - full SDP body (read only) |
* $sdp(sess_version) - sess-version -attribute from SDP o= -line. When set to special value -1, current value is incremented. (read + write) | * $sdp(sess_version) - sess-version -attribute from SDP o= -line. When set to special value -1, current value is incremented. (read + write) | ||
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$ltt(key) - return local generated To-tag when Kamailio sends a reply | $ltt(key) - return local generated To-tag when Kamailio sends a reply | ||
- | | + | |
- | * $ltt(t) - the to-tag used in transaction stateful replies (transaction has to be created at that time, eg., by t_newtran() or in a branch/ | + | * $ltt(t) - the to-tag used in transaction stateful replies (transaction has to be created at that time, eg., by t_newtran() or in a branch/ |
- | * $ltt(x) - $ltt(t) if the transaction was created already, otherwise $ltt(s) | + | * $ltt(x) - $ltt(t) if the transaction was created already, otherwise $ltt(s) |
+ | |||
+ | ===== tcpops module variable ===== | ||
+ | |||
+ | $tcp(key) - return TCP connection attributes. | ||
+ | |||
+ | The key can be: | ||
+ | * c_si - connection source ip (useful with HAProxy connections) | ||
+ | * c_sp - connection source port (useful with HAProxy connections) | ||
+ | * conid - connection id | ||
+ | |||
+ | |||
+ | ===== pv_headers module variables ===== | ||
+ | |||
+ | * $x_hdr(// | ||
+ | * $x_fu: Full From header | ||
+ | * $x_fU: From header user part | ||
+ | * $x_fd: From header domain part | ||
+ | * $x_fn: From header Display Name part | ||
+ | * $x_ft: From header Tag | ||
+ | * $x_tu: Full To header | ||
+ | * $x_tU: To header user part | ||
+ | * $x_td: To header domain part | ||
+ | * $x_tn: To header Display Name part | ||
+ | * $x_tt: To header Tag | ||
+ | * $x_rs: | ||
+ | * $x_rr: | ||
===== $C(xy) - Foreground and background colors ===== | ===== $C(xy) - Foreground and background colors ===== | ||