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cookbooks:devel:pseudovariables [2021/06/02 17:02]
miconda [$hfl(name) - Header Field With List Of Bodies]
cookbooks:devel:pseudovariables [2021/12/08 15:15]
miconda [$msg(attr)]
Line 171: Line 171:
 <code c> <code c>
 xlog("$$avp(x) fount $cnt($avp(x)) times\n"); xlog("$$avp(x) fount $cnt($avp(x)) times\n");
 +</code>
 +
 +**$cnt(xavp)** - return the number of xavps
 +
 +<code>
 + * $cnt($xavp(key[*])) : number of XAVPs "key".
 + * $cnt($xavp(key[n]=>sub[*])) : number of children "sub" in XAVP "key[n]".
 + * $cnt($xavp(key[*]=>sub[*])) : total number of children "sub" in all XAVPs "key".
 +
 + * $cnt($xavp(key[n])) : 1 or 0 (if this index exists or not).
 + * $cnt($xavp(key[-n])) : same but with reverse indexing (-1 is the last index).
 +
 + * $cnt($xavp(key[*]=>sub[n])) : number of children "sub[n]" that exist in all XAPVs "key".
 +
 + * $cnt($xavp(key)) is the same as $cnt($xavp(key[*])).
 + * $cnt($xavp(key=>sub)) is the same as $cnt($xavp(key[*]=>sub[*]))
 </code> </code>
 ==== $conid - TCP Connection ID ==== ==== $conid - TCP Connection ID ====
Line 925: Line 941:
 Implemented for: Implemented for:
  
 +  * Contact
   * Record-Route   * Record-Route
   * Route   * Route
Line 938: Line 955:
  
 <code c> <code c>
-if($(hdr(Via)[1])=~"TLS") {+if($(hfl(Via)[1])=~"TLS") {
 ... ...
 } }
Line 954: Line 971:
 </code> </code>
  
 +===== $hflc(name) - Number of Header Bodies =====
 +
 +Similar to **$hdrc(name)**, but for some of the standard headers that can have many bodies serialized in the same header field (i.e., comma separated list of bodies in same header field) is able to count the number of individual bodies.
 +
 +Implemented for:
 +
 +  * Record-Route
 +  * Route
 +  * Via
 +
 +For the rest of the headers works like **$hdrc(name)**.
 +
 +
 +Example of usage:
 +
 +<code c>
 +if($hflc(Via)==3) {
 +...
 +}
 +</code>
 ===== $var(name) - Private memory variables (zero) ===== ===== $var(name) - Private memory variables (zero) =====
  
Line 1140: Line 1177:
 </code> </code>
  
-==== $rpl(key) ====+===== $rpl(key) =====
  
 Attributes of the SIP reply processed at that moment. The variables must be used during SIP reply processing, otherwise it returns $null. Attributes of the SIP reply processed at that moment. The variables must be used during SIP reply processing, otherwise it returns $null.
Line 1160: Line 1197:
 } }
 </code> </code>
 +
 +===== $msgbuf(index) =====
 +
 +Get or set the character in the message buffer at the position index.
 +
 +The index has to be a positive integer or a variable holding such value.
 +
 +Note that the variable returns a clone of the character stored in a static buffer, copy it to another variable if you want to compare with another $msgbuf(index).
 +
 +The update is done directly and immediately in the message buffer -- use it with care!
 +
 +Example of usage:
 +
 +<code c>
 +if ($msgbuf(20)=="V") {
 +    $msgbuf(20) = "v";
 +}
 +</code>
 +===== Header Field Iterator =====
 +
 +==== $hfitname(iname) ====
 +
 +The header name of the header field iterator.
 +
 +Example:
 +
 +<code c>
 +    hf_iterator_start("i1");
 +    while(hf_iterator_next("i1")) {
 +        xlog("hdr[$hfitname(i1)] is: $hfitbody(i1)\n");
 +    }
 +    hf_iterator_end("i1");
 +</code>
 +
 +==== $hfitbody(iname) ====
 +
 +The header body of the header field iterator.
 +
 +Example:
 +
 +<code c>
 +    hf_iterator_start("i1");
 +    while(hf_iterator_next("i1")) {
 +        xlog("hdr[$hfitname(i1)] is: $hfitbody(i1)\n");
 +    }
 +    hf_iterator_end("i1");
 +</code>
 +
 +===== Body Line Iterator =====
 +
 +==== $blitval(iname) ====
 +
 +The value of the body line iterator.
 +
 +Example:
 +
 +<code c>
 +    bl_iterator_start("b1");
 +    while(bl_iterator_next("b1")) {
 +        xlog("body line: $blitval(b1)");
 +    }
 +    bl_iterator_end("b1");
 +</code>
 +
  
 ===== Send Data Attributes ===== ===== Send Data Attributes =====
Line 1223: Line 1324:
     ...     ...
   }   }
 +}
 +</code>
 +
 +
 +===== SIPTRACE Module =====
 +==== $siptrace(name) ====
 +
 +**$siptrace(name)** - return attributes of the message handled in the event_route[siptrace:msg].
 +
 +The name can be:
 +
 +  * src_addr - source socket address (proto:ip:port)
 +  * dst_addr - destination socket address (proto:ip:port)
 +  * src_host - source host, for IPv6 host contains `[]`
 +  * dst_host - destination host, for IPv6 host contains `[]`
 +  * src_hostip - source host, for IPv6 host do not contains `[]`
 +  * dst_hostip - destination host, for IPv6 host do not contains `[]`
 +  * src_port - source port
 +  * dst_port - destination port
 +  * src_proto - source proto
 +  * dst_proto - destination proto
 +
 +Example:
 +
 +<code c>
 +event_route[siptrace:msg]
 +{
 +    if (allow_address("1", "$siptrace(src_hostip)", "0")) {
 +        return;
 +
 +    }
 +    if (compare_ips($siptrace(src_host), "[2001:DB8::1]")) {
 +        return;
 +    }
 } }
 </code> </code>
Line 1840: Line 1975:
 ==== $nh(key) ==== ==== $nh(key) ====
  
-Return attributes of next hop for the SIP requestAddress is taken from dst_uri, if set, if not from new r-uri or original r-uri.+Return attributes of next hop for the SIP messagesFor SIP requests, the address is taken from dst_uri, if set, if not from new r-uri or original r-uri. For SIP replies, the attributes are taken from 2nd Via header (username is always $null for SIP replies).
  
   * $nh(u) - uri (lower case u)   * $nh(u) - uri (lower case u)
Line 1937: Line 2072:
  
 ===== TLS Module ===== ===== TLS Module =====
 +
 +==== $tls(key) ====
 +
 +Variables related to TLS communication and certificates.
 +
 +The **key** can be:
 +
 +  * **m_issuer_line** - return local (my) certificate issuer line
 +  * **p_issuer_line** - return remote (peer) certificate issuer line
 +  * **m_subject_line** - return local (my) certificate subject line
 +  * **p_subject_line** - return remote (peer) certificate subject line
 +
 +Example:
 +
 +<code c>
 +if(proto==TLS) {
 +    xinfo("local certificate subject: $tls(m_subject_line)\n");
 +}
 +</code>
  
 ==== $tls_version ==== ==== $tls_version ====
 +
 The TLS/SSL version which is used on the TLS connection from which the message was received. String type. The TLS/SSL version which is used on the TLS connection from which the message was received. String type.
 ==== $tls_description ==== ==== $tls_description ====
Line 2074: Line 2229:
   * $msg(body) - sip message body   * $msg(body) - sip message body
   * $msg(body_len) - sip message body length   * $msg(body_len) - sip message body length
-  * $msg(hdrs) - sip message headers +  * $msg(hdrs) - sip message headers (surrounding white space and EoL chars trimmed) 
-  * $msg(fline) - sip message first line+  * $msg(fline) - sip message first line (surrounding white space and EoL chars trimmed) 
 +  * $msg(fpart) - sip message first line and the headers 
 +  * $msg(lpart) - sip message headers and the body 
 +===== POSOPS Module ===== 
 + 
 +==== $pos(key) ==== 
 + 
 +Get attributes after a function of the module is executed. 
 + 
 +The key can be: 
 + 
 +  * ret - the return code on success or -1 
 +  * idx - position inside message buffer, for find/search it is the start of matching 
 +  * len - the length of matching string for search functions
  
 ===== XHTTP Module ===== ===== XHTTP Module =====
Line 2275: Line 2443:
   * 2 charge   * 2 charge
   * 3 spare   * 3 spare
 +
 +
 +==== $sipt(redirection_info) / $sipt_redirection_info ===
 +Returns the value of the Redirecting reason of the Call Diversion Information header from ISUP. 
 +Returns -1 if there is a parsing error or if the Call Diversion Information is not present.
 +
 +Can return the following values:
 +
 +  * 0 Unknown
 +  * 1 User busy
 +  * 2 no reply
 +  * 3 unconditional
 +  * 4 deflection during alerting
 +  * 5 deflection immediate response
 +  * 6 mobile subscriber not reachable
 +
 +
 +==== $sipt(redirection_number) / $sipt_redirection_number ===
 +Returns the value (Address signal) of the Redirection Number.
 +Returns -1 if there is a parsing error or if the Redirection Number is not present.
 +
 +Example:
 +<code c>
 +# get the redirection number
 +$avp(s:redir_num) = $sipt(redirection_number);
 +</code>
 +
 +
 +==== $sipt(redirection_number.nai) / $sipt_redirection_number_nai ===
 +Returns the value of the Nature of Address Indicator of the Redirection Number. Returns -1 if there is a parsing error or if the Redirection Number is not present.
 +
 +Can return the following values:
 +
 +  * 0 Spare
 +  * 1 Subscriber Number (national use)
 +  * 2 Unknown (national use)
 +  * 3 National (significant) number
 +  * 4 International use
 +
 +
 +==== $sipt(calling_party_number) ===
 +Returns the value (Address signal) of the Calling Party for the IAM message.
 +Returns -1 if there is a parsing error or if the Calling Party Number is not present.
 +
 +
 +==== $sipt(called_party_number) ===
 +Returns the value (Address signal) of the Called Party for the IAM message.
 +Returns -1 if there is a parsing error or if the Called Party Number is not present.
 +
 +
 +==== $sipt(sipt_redirection_information_reason) ===
 +Returns the value of the Redirection reason of the Redirection information header from ISUP. 
 +Returns -1 if there is a parsing error or if the Redirection information is not present.
 +
 +
 +==== $sipt(sipt_redirection_information_original_reason) ===
 +Returns the value of the Original Redirection reason of the Redirection information header from ISUP. 
 +Returns -1 if there is a parsing error or if the Redirection information is not present.
 +
 +
 +==== $sipt(redirecting_number.nai) ===
 +Returns the value of the Nature of Address Indicator of the Redirecting Number. Returns -1 if there is a parsing error or if the Redirecting Number is not present.
 +
 +Can return the following values:
 +
 +  * 0 Spare
 +  * 1 Subscriber Number (national use)
 +  * 2 Unknown (national use)
 +  * 3 National (significant) number
 +  * 4 International use
 +
 +
 +==== $sipt(redirecting_number) ===
 +Returns the value (Address signal) of the Redirecting Number for the IAM message.
 +Returns -1 if there is a parsing error or if the Redirecting Number is not present.
 +
 +
 +==== $sipt(original_called_number.nai) ===
 +Returns the value of the Nature of Address Indicator of the Original Called Number. Returns -1 if there is a parsing error or if the Original Called Number is not present.
 +
 +Can return the following values:
 +
 +  * 0 Spare
 +  * 1 Subscriber Number (national use)
 +  * 2 Unknown (national use)
 +  * 3 National (significant) number
 +  * 4 International use
 +
 +
 +==== $sipt(original_called_number) ===
 +Returns the value (Address signal) of the Original Called Number for the IAM message.
 +Returns -1 if there is a parsing error or if the Original Called Number is not present.
 +
 +
 +==== $sipt(generic_number.nai) ===
 +Returns the value of the Nature of Address Indicator of the Generic Number. Returns -1 if there is a parsing error or if the Generic Number is not present.
 +
 +Can return the following values:
 +
 +  * 0 Spare
 +  * 1 Subscriber Number (national use)
 +  * 2 Unknown (national use)
 +  * 3 National (significant) number
 +  * 4 International use
 +
 +
 +==== $sipt(generic_number) ===
 +Returns the value (Address signal) of the Generic Number for the IAM message.
 +Returns -1 if there is a parsing error or if the Generic Number is not present.
  
  
Line 2396: Line 2673:
   * 0x999 - HEP attribute 0x999   * 0x999 - HEP attribute 0x999
  
-===== $phn(rid=>key) - Phonenum Variables =====+===== Phonenum Variables =====
  
 $phn(rid=>key) - rid is an identifier for this query result; it is designated by the second parameter of phonenum_match(). The key can be one of the following: $phn(rid=>key) - rid is an identifier for this query result; it is designated by the second parameter of phonenum_match(). The key can be one of the following:
Line 2418: Line 2695:
 </code> </code>
  
 +===== SecSIPId Variables =====
  
 +$secsipid(key) - return attributes of secsipid module.
 +
 +The key can be:
 +
 +  * val - the value of Identity computed by secsipid_build_identity(...)
 +  * ret - the return code of the libsecsipid function used by secsipid_build_identity(...)
 +
 +Example:
 +
 +<code c>
 +if(secsipid_build_identity("$fU", "$rU", "A", "",
 +        "https://kamailio.org/stir/$rd/cert.pem", "/secsipid/$rd/key.pem")) {
 +    xinfo("identity value: $secsipid(val)\n");
 +}
 +</code>
 ===== sdpops module variables ===== ===== sdpops module variables =====
  
Line 2436: Line 2729:
   * $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)
  
 +===== $via0(attr) - Via[0] Attributes =====
 +
 +$via0(attr) - attributes of first Via header.
 +
 +The attr can be:
 +
 +  * host - host part (string)
 +  * port - port (number)
 +  * proto - protocol - transport part (string)
 +  * protoid - protocol id (integer id)
 +  * branch - branch parameter
 +  * rport - rport parameter value (string)
 +  * received - received parameter value (string)
 +  * i - i parameter value (string)
 +
 +===== $via1(attr) - Second Via Attributes =====
 +
 +$via1(attr) - attributes of second Via header. The attr can be the same as for $via0(attr).
 +
 +===== $viaZ(attr) - Last Via Attributes =====
 +
 +$viaZ(attr) - attributes of last Via header. The attr can be the same as for $via0(attr).
 ===== tcpops module variable ===== ===== tcpops module variable =====
  
Line 2479: Line 2794:
  
  
 +===== $K(key) - Kamailio Constants =====
  
 +$K(key) - return the numeric values corresponding to Kamailio configuration constants.
  
 +The key can be:
 +
 +  * IPv4 - return AF_INET
 +  * IPv6 - return AF_INET6
 +  * UDP - return PROTO_UDP
 +  * TCP - return PROTO_TCP
 +  * TLS - return PROTO_TLS
 +  * SCTP - return PROTO_SCTP
 +  * WS - return PROTO_WS
 +  * WSS - return PROTO_WSS
 +
 +
 +<code c>
 +xinfo("proto UDP numeric id: $K(UDP)\n");
 +</code>
 ===== Examples ===== ===== Examples =====
  
cookbooks/devel/pseudovariables.txt · Last modified: 2022/04/11 15:24 by henningw