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cookbooks:devel:pseudovariables [2018/11/23 11:53] miconda |
cookbooks:devel:pseudovariables [2020/04/01 15:44] miconda [$xavp(id) - XAVPs] |
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{{ : | {{ : | ||
- | ====== Kamailio SIP Server v5.3.x (devel): Pseudo-Variables ====== | + | ====== Kamailio SIP Server v5.4.x (devel): Pseudo-Variables ====== |
===== Introduction ===== | ===== Introduction ===== | ||
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* avpops | * avpops | ||
* htable | * htable | ||
+ | * http_async_client | ||
* textops | * textops | ||
* uac | * uac | ||
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**$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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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 $du to any SIP URI. | ||
| | ||
| | ||
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**$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 ==== | ==== $mf - Flags ==== | ||
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**$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 ===== | ||
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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. You can create multilevel xavps, as xavps may contain xavps. | ||
+ | |||
+ | ===== $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=> | ||
+ | </ | ||
===== $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 ===== | ||
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} | } | ||
</ | </ | ||
- | ===== Send Address | + | ===== Received Data Attributes ===== |
+ | |||
+ | ==== $rcv(key) ==== | ||
+ | |||
+ | Attributes of received data. The variables must be used inside **event_route[core: | ||
+ | |||
+ | The key can be: | ||
+ | |||
+ | * buf - received message | ||
+ | * len - lenght of received message | ||
+ | * srcip - source ip | ||
+ | * rcvip - local ip where it was received | ||
+ | * scrport - source port | ||
+ | * rcvport - local port where it was received | ||
+ | * proto - protocol as int id | ||
+ | * sproto - protocol as string | ||
+ | * af - address family | ||
+ | |||
+ | Example of usage: | ||
+ | |||
+ | <code c> | ||
+ | event_route[core: | ||
+ | xlog(" | ||
+ | } | ||
+ | </ | ||
+ | |||
+ | ===== Send Data Attributes ===== | ||
==== $sndfrom(name) ==== | ==== $sndfrom(name) ==== | ||
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* af - address family to be used to send (numeric) | * af - address family to be used to send (numeric) | ||
* port - port of destination address | * port - port of destination address | ||
- | * proto - transport protocol to be used to send (numeric) | + | * proto - transport protocol to be used to send (numeric |
* sproto - transport protocol to be used to send (string) | * sproto - transport protocol to be used to send (string) | ||
* buf - entire send buffer as string | * buf - entire send buffer as string | ||
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</ | </ | ||
- | ===== 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. | ||
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==== $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) ==== | ||
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} | } | ||
</ | </ | ||
- | ===== 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 ==== | ||
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==== $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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* $msg(fline) - sip message first line | * $msg(fline) - sip message first line | ||
- | ===== XHTTP module Pseudo-Variables | + | ===== XHTTP Module |
==== $hu ==== | ==== $hu ==== | ||
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* 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. | ||
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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 ==== | ||
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* 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 ==== | ||
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* 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=> | ||
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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 ==== | ||
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===== 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) | ||
- | ===== kex module variables ===== | + | ===== $sruid - Unique ID ===== |
+ | |||
+ | * $sruid - return unique ID generated internally Kamailio | ||
+ | |||
+ | ===== $ltt(key) - Local To-Tag ===== | ||
+ | |||
+ | $ltt(key) - return local generated To-tag when Kamailio sends a reply | ||
+ | |||
+ | * $ltt(s) - the to-tag used in stateless replies | ||
+ | * $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) | ||
+ | |||
+ | ===== 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 | ||
+ | |||
+ | * $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: | ||
- | * $sruid - return unique ID | ||
===== $C(xy) - Foreground and background colors ===== | ===== $C(xy) - Foreground and background colors ===== | ||