Table of Contents
listen=interfacetls_library (string)tls_method ([domain]string)certificate ([domain](string)private_key ([domain](string)ca_list ([domain](string)ca_dir ([domain](string)crl_dir ([domain](string)crl_check_all ([domain](string)ciphers_list ([domain](string)dh_params ([domain](string)ec_curve ([domain](string)verify_cert ([domain](string)require_cert ([domain](string)client_tls_domain_avp (string)client_sip_domain_avp (string)db_url (string)db_table (string)
domain_col (string)
match_ip_address_col (string)
match_sip_domain_col (string)
tls_method_col (string)
verify_cert_col (string)
require_cert_col (string)
certificate_col (string)
private_key_col (string)
crl_check_all_col (string)
crl_dir_col (string)
ca_list_col (string)
ca_dir_col (string)
cipher_list_col (string)
dh_params_col (string)
ec_curve_col (string)
match_ip_address (string)match_sip_domain (string)server_domain, client_domain (string)List of Tables
List of Examples
is_peer_verified usagelisten variabletls_library variabletls_method variabletls_method range variablecertificate variable
private_key variable
ca_list variableca_dir variablecrl_dir variablecrl_check_all variableciphers_list variable
dh_params variable
verify_cert variablerequire_cert variableclient_tls_domain_avp variableclient_sip_domain_avp variabledb_url block
db_table block
domain_col block
match_ip_address_col block
match_sip_domain_col block
tls_method_col block
vertify_cert_col block
require_cert_col block
certificate_col block
private_key_col block
crl_check_all block
crl_dir_col block
ca_list_col block
ca_dir_col block
cipher_list_col block
dh_params_col block
ec_curve_col block
match_ip_address variablematch_sip_domain variabletls_client_domain and
tls_server_domain block
$tls_[peer|my]_[subject|issuer]This module is a management module for TLS certificates and parameters. It provides an interface for all the modules that use the TLS protocol. It also exports pseudo variables with certificate and TLS parameters.
This module is used to provision TLS certificates and parameters for all the modules that use TLS transport (like proto_tls or proto_wss). The module supports multiple virtual domains that can be assigned to different listeners (servers) or new connections (clients). Each TLS module that uses this management module should assign itself to one or more domains.
The module allows the definition of the TLS domains both via module parameters (script level) and via an SQL table.
A script example which details this module's usage can be found in Section 1.11, “OpenSIPS with TLS - script example”.
Besides TLS certificates and parameters, this module also acts as an inteface between the actual TLS implemenation (provided by openSSL or wolfSSL libraries) and transport protocol modules like proto_tls or proto_wss. The tls_mgm module transparently exposes the TLS operations implemented by tls_openssl and tls_wolfssl modules to the higher-level OpenSIPS transport modules.
The TLS library selection ca be configured through the tls_library module parameter.
The wording 'TLS domain' means that this TLS connection will have different parameters than another TLS connection (from another TLS domain). Thus, TLS domains are not directly related to different SIP domains, although they are often used in conjunction. Depending on the direction of the TLS handshake, a TLS domain is called 'client domain' (=outgoing TLS connection) or 'server domain' (= incoming TLS connection).
If you run several SIP domains you can specify some parameters for each of them separately (regardless if you have only one or multiple socket=tls:ip:port entries in the config file).
For example, TLS domains can be used in virtual hosting scenarios with TLS. OpenSIPS offers SIP service for multiple domains, e.g. atlanta.com and biloxi.com. Altough both domains will be hosted on a single SIP proxy, the SIP proxy needs 2 certificates: One for atlanta.com and one for biloxi.com. For incoming TLS connections, the SIP proxy has to present the respective certificate during the TLS handshake. As the SIP proxy does not have a received SIP message yet (this is done after the TLS handshake), the SIP proxy can not retrieve the target domain from SIP (which would have been usually retrieved from the domain in the request URI). Thus, distinction for these domains must be done by using multiple listening sockets or by having clients that send the Servername TLS extension(SNI) in the handshake process.
For outgoing TLS connections, the TLS domain is chosen based on the destination socket of the underlying outgoing TCP connection and/or by taking a decision at script level via an AVP. For example, you can inspect headers like RURI or From and match the domain in the SIP header with filters that you have set up for the TLS domains.
NOTE: Except tls_handshake_timeout and tls_send_timeout all TLS parameters can be set per TLS domain.
TLS domains can be defined in two ways:
by setting the server_domain or client_domain module parameters
by provisioning in DB
For the domains defined in the DB, the certificate, private key, list of trusted CAs and Diffie-Hellman parameters are provisioned as BLOB values while for script defined domains you must provide path to files.
You can define domains both in the DB and script at the same time.
For any TLS domain (defined through script or DB) if not specified otherwise, the default settings are:
method - SSLv23
verify_cert - 1
require_cert - 1
certificate - CFG_DIR/tls/cert.pem
private_key - CFG_DIR/tls/ckey.pem
crl_check_all - 0
crl_dir - none
ca_list - none
ca_dir - /etc/pki/CA/
cipher_list - the OpenSSL default ciphers
dh_params - none
ec_curve - none
The following modules must be loaded before this module:
tls_openssl or tls_wolfssl, unless tls_library is set to 'none'.
Returns 1 if the message is received via TLS and the peer was verified during TLS connection handshake, otherwise it returns -1
This function can be used from REQUEST_ROUTE.
Example 1.1. is_peer_verified usage
...
if (is_peer_verified()) {
xlog("L_INFO","request from verified TLS peer\n");
} else {
xlog("L_INFO","request not verified\n");
}
...
All these parameters can be used from the opensips.cfg file, to configure the behavior of OpenSIPS-TLS.
Not specific to TLS. Allows to specify the protocol (udp, tcp, tls), the IP address and the port where the listening server will be.
Selects which TLS library to use. Possible values are:
auto - auto-detect which TLS library module (tls_openssl or tls_wolfssl) was loaded. OpenSIPS will not start if no module, or both modules are found.
none - do not use any TLS library; this is useful when the tls_mgm module is required only for the management of TLS certificates and parameters by modules like db_mysql, rabbitmq etc. ( and not for TLS operations by transport modules like proto_tls etc.)
openssl - use the openSSL library through the tls_openssl module.
wolfssl - use the wolfSSL library through the tls_wolfssl module.
Default value is auto.
Sets the TLS protocol. The domain part represents the name of the TLS domain. The supported TLS methods are:
TLSv1_3 - means OpenSIPS will accept only TLSv1.3 connections. This version is only available starting with OpenSSL 1.1.1 version.
TLSv1_2 - means OpenSIPS will accept only TLSv1.2 connections (rfc3261 conformant).
TLSv1 - means OpenSIPS will accept only TLSv1 connections (rfc3261 conformant).
SSLv23 - means OpenSIPS will accept any of the above methods, but the initial SSL hello must be v2 (in the initial hello all the supported protocols are advertised enabling switching to a higher and more secure version). The initial v2 hello means it will not accept connections from SSLv3 or TLSv1 only clients.
If you are using an OpenSSL library newer than 1.1.0, you can also specify a range of accepted TLS versions as [VLOW]-[VHIGH]. If VLOW is not specified it will use the minimum supported protocol version and if VHIGH is not specified it will use the maximum supported protocol version. This means that using a range where both the low and high values are missing, will accept all the supported methods, but unlike SSLv23 will not require the initial hello to be SSLv2.
Default value is SSLv23.
For extended compatibility with older system, best use SSLv23.
If you want RFC3261 conformance and all your clients support TLSv1 (or you are planning to use encrypted "tunnels" only between different OpenSIPS proxies) use TLSv1. If you want to support older clients use SSLv23 (in fact most of the applications with SSL support use the SSLv23 method).
Example 1.5. Set tls_method range variable
...
modparam("tls_mgm", "tls_method", "[dom]TLSv1-TLSv1_3") # between v1 and v1.3
modparam("tls_mgm", "tls_method", "[dom]TLSv1-") # v1 or higher
modparam("tls_mgm", "tls_method", "[dom]-TLSv1_2") # up to v1.2
modparam("tls_mgm", "tls_method", "[dom]-") # all supported
...
Public certificate file for OpenSIPS. It will be used as server-side certificate for incoming TLS connections, and as a client-side certificate for outgoing TLS connections. The domain part represents the name of the TLS domain.
Default value is "CFG_DIR/tls/cert.pem".
Example 1.6. Set certificate variable
...
modparam("tls_mgm", "certificate", "[dom]/mycerts/certs/opensips_server_cert.pem")
...
Private key of the above certificate. I must be kept in a safe place with tight permissions! The domain part represents the name of the TLS omain.
Default value is "CFG_DIR/tls/ckey.pem".
Example 1.7. Set private_key variable
...
modparam("tls_mgm", "private_key", "[dom]/mycerts/private/prik.pem")
...
List of trusted CAs. The file contains the certificates accepted, one after the other. It MUST be a file, not a folder. The domain part represents the name of the TLS domain.
Default value is "".
Example 1.8. Set ca_list variable
...
modparam("tls_mgm", "ca_list", "[dom]/mycerts/certs/ca_list.pem")
...
Directory storing trusted CAs. The certificates in the directory must be in hashed form, as described in the openssl documentation for the Hashed Directory Method. The domain part represents the name of the TLS domain.
Default value is "/etc/pki/CA/".
Directory storing certificate revocation lists (CRLs). The domain part represents the name of the TLS domain.
If this parameter is not set, no CRLs will be used.
Setting this parameter with a non-zero integer value enables CRL checking for the entire certificate chain.
By default, only the leaf certificate in the certificate chain is checked.
You can specify the list of algorithms for authentication and encryption that you allow. The domain part represents the name of the TLS domain. To obtain a list of ciphers and then choose, use the openssl application:
openssl ciphers 'ALL:eNULL:!LOW:!EXPORT'
Do not use the NULL algorithms (no encryption) ... only for testing!!!
It defaults to the OpenSSL default ciphers.
You can specify a file which contains Diffie-Hellman parameters as a PEM-file. This is needed if you would like to specify ciphers including Diffie-Hellman mode. The domain part represents the name of the TLS domain.
It defaults to not set a dh param file.
Example 1.13. Set dh_params variable
...
modparam("tls_mgm", "dh_params", "[dom]/etc/pki/CA/dh1024.pem")
...
You can specify an elliptic curve which should be used for ciphers which demand an elliptic curve. The domain part represents the name of the TLS domain.
It's usable only if TLS v1.1/1.2 support was compiled. A list of curves which can be used you can get by
openssl ecparam -list_curves
It defaults to not set a elliptic curve.
Activates SSL_VERIFY_PEER in the ssl_context. For a detailed explanation, check the openssl documentation.
The domain part represents the name of the TLS domain.
Default value is 1.
Activates SSL_VERIFY_FAIL_IF_NO_PEER_CERT in the ssl_context. For a detailed explanation, check the openssl documentation. This parameter only makes sense for server domains and if the verify_cert parameter is also set.
The domain part represents the name of the TLS domain.
Default value is 1.
Name of the AVP used for enforcing the selection of a specific TLS client domain. Setting this AVP to the name of a TLS client domain will result in using that specific domain regardless of the standard matching mechanism.
Note: If there is already an existing TLS connection to the remote target, it will be reused and setting this AVP has no effect.
No default value.
Example 1.16. Set client_tls_domain_avp variable
...
modparam("tls_mgm", "client_tls_domain_avp", "tls_match_dom")
...
Name of the AVP that sets the SIP domain used in the TLS client domain matching process.
Note: If there is already an existing TLS connection to the remote target, it will be reused and setting this AVP has no effect.
For the AVP usage example, refer to Section 1.9.36, “server_domain, client_domain (string)”.
No default value.
Example 1.17. Set client_sip_domain_avp variable
...
modparam("tls_mgm", "client_sip_domain_avp", "sip_match_dom")
...
The database url. It cannot be NULL.
You cannot use the "tls_domain=dom_name" URL parameter for a TLS connection to the database for the tls_mgm module itself.
Example 1.18. Usage of db_url block
modparam("tls_mgm", "db_url", "mysql://root:admin@localhost/opensips")
Sets the database table name.
Default value is "tls_mgm".
Sets the name for the TLS domain column.
Default value is "domain".
Sets the IP address matching column name.
Default value is "match_ip_address".
Example 1.21. Usage of match_ip_address_col block
modparam("tls_mgm", "match_ip_address_col", "addr")
Sets the SIP domain matching column name.
Default value is "match_sip_domain".
Example 1.22. Usage of match_sip_domain_col block
modparam("tls_mgm", "match_sip_domain_col", "addr")
Sets the method column name.
Default value is "method".
Sets the verrify certificate column name.
Default value is "verify_cert".
Sets the require certificate column name.
Default value is "require_cert".
Sets the certificate column name.
Default value is "certificate".
Sets the private key column name.
Default value is "private_key".
Sets the crl_check_all column name.
Default value is "crl_check_all".
Sets the crl directory column name.
Default value is "crl_dir".
Sets the CA list column name.
Default value is "ca_list".
Sets the CA directory column name.
Default value is "ca_dir".
Sets the cipher list column name.
Default value is "cipher_list".
Sets the Diffie-Hellmann parameters column name.
Default value is "dh_params".
Sets the ec_curve column name.
Default value is "ec_curve".
The IP addresses and ports used to match a TLS connection with a virtual TLS domain. For TLS server domains, these values will be mathced against the socket on which the connection is received. For TLS client domains, the values will be compared with the destination socket of the connection.
The parameter accepts a list of values, and the special value "*" means: match any address.
Default value is "*" (match any address).
Example 1.35. Set match_ip_address variable
...
modparam("tls_mgm", "match_ip_address", "[dom1]10.0.0.10:5061, 10.0.0.11:5061")
...
The SIP domains used to match a TLS connection with a virtual TLS domain. For TLS server domains, these values will be matched against the hostname provided in the TLS Servername extension(SNI). For TLS client domains, the values will be compared with the value of the client_sip_domain_avp AVP.
The parameter accepts a list of FQDNs or the special values:
* - match any sip domain( including no SNI provided, in case of TLS server domains);
none - match the TLS domain when there is no SNI provided (make sense only for TLS server domains). Note that if a SNI is provided, but does not match any other SIP domain filter, the connection will be rejected.
The FQDNs can be specified as with Unix shell-style wildcards. If there are multiple potential matches, the most specific domain will be selected(eg. a request for "foo.bar.com" is matched with the domain specified with "foo.bar.com" versus the one with "*.bar.com").
Default value is "*" (match any sip domain).
Example 1.36. Set match_sip_domain variable
...
modparam("tls_mgm", "match_sip_domain", "[dom1]foo.com, bar.com, *.baz.com")
modparam("tls_mgm", "match_sip_domain", "[default_dom]*")
...
You can define virtual TLS domains through these parameters.
The value of these parameters represents the virtual tls domain's name which is only used for identification.
Example 1.37. Usage of tls_client_domain and
tls_server_domain block
...
socket=tls:10.0.0.10:5061
...
# set the TLS client domain AVP
modparam("tls_mgm", "client_sip_domain_avp", "tls_sip_dom")
...
# 'atlanta' server domain
modparam("tls_mgm", "server_domain", "dom1")
modparam("tls_mgm", "match_ip_address", "[dom1]10.0.0.10:5061")
modparam("tls_mgm", "match_sip_domain", "[dom1]atlanta.com")
modparam("tls_mgm", "certificate", "[dom1]/certs/atlanta.com/cert.pem")
modparam("tls_mgm", "private_key", "[dom1]/certs/atlanta.com/privkey.pem")
modparam("tls_mgm", "ca_list", "[dom1]/certs/wellknownCAs")
modparam("tls_mgm", "tls_method", "[dom1]tlsv1")
modparam("tls_mgm", "verify_cert", "[dom1]1")
modparam("tls_mgm", "require_cert", "[dom1]1")
#'biloxi' server domain
modparam("tls_mgm", "server_domain", "dom2")
modparam("tls_mgm", "match_ip_address", "[dom2]10.0.0.10:5061")
modparam("tls_mgm", "match_sip_domain", "[dom2]biloxi.com")
modparam("tls_mgm", "certificate", "[dom2]/certs/biloxi.com/cert.pem")
modparam("tls_mgm", "private_key", "[dom2]/certs/biloxi.com/privkey.pem")
modparam("tls_mgm", "ca_list", "[dom2]/certs/wellknownCAs")
modparam("tls_mgm", "tls_method", "[dom2]tlsv1")
modparam("tls_mgm", "verify_cert", "[dom2]1")
modparam("tls_mgm", "require_cert", "[dom2]1")
# generic TLS server domain, if the client does not provide SNI
modparam("tls_mgm", "server_domain", "dom3")
modparam("tls_mgm", "match_ip_address", "[dom3]10.0.0.10:5061")
modparam("tls_mgm", "match_sip_domain", "[dom3]none")
modparam("tls_mgm", "certificate", "[dom3]/certs/generic/cert.pem")
modparam("tls_mgm", "private_key", "[dom3]/certs/generic/privkey.pem")
modparam("tls_mgm", "ca_list", "[dom3]/certs/wellknownCAs")
modparam("tls_mgm", "tls_method", "[dom3]tlsv1")
modparam("tls_mgm", "verify_cert", "[dom3]1")
modparam("tls_mgm", "require_cert", "[dom3]1")
# 'atlanta' client domain
modparam("tls_mgm", "client_domain", "dom4")
modparam("tls_mgm", "match_ip_address", "[dom4]*")
modparam("tls_mgm", "match_sip_domain", "[dom4]atlanta.com")
modparam("tls_mgm", "certificate", "[dom4]/certs/atlanta.com/cert.pem")
modparam("tls_mgm", "private_key", "[dom4]/certs/atlanta.com/privkey.pem")
modparam("tls_mgm", "ca_list", "[dom4]/certs/wellknownCAs")
modparam("tls_mgm", "tls_method", "[dom4]tlsv1")
modparam("tls_mgm", "verify_cert", "[dom4]1")
modparam("tls_mgm", "require_cert", "[dom4]1")
# 'biloxi' client domain
modparam("tls_mgm", "client_domain", "dom5")
modparam("tls_mgm", "match_ip_address", "[dom5]*")
modparam("tls_mgm", "match_sip_domain", "[dom5]biloxi.com")
modparam("tls_mgm", "certificate", "[dom5]/certs/biloxi.com/cert.pem")
modparam("tls_mgm", "private_key", "[dom5]/certs/biloxi.com/privkey.pem")
modparam("tls_mgm", "ca_list", "[dom5]/certs/wellknownCAs")
modparam("tls_mgm", "tls_method", "[dom5]tlsv1")
modparam("tls_mgm", "verify_cert", "[dom5]1")
modparam("tls_mgm", "require_cert", "[dom5]1")
# TLS client domain for GW provider
modparam("tls_mgm", "client_domain", "dom6")
modparam("tls_mgm", "match_ip_address", "[dom6]1.2.3.4:6677")
modparam("tls_mgm", "match_sip_domain", "[dom6]*")
modparam("tls_mgm", "certificate", "[dom6]/certs/gw/cert.pem")
modparam("tls_mgm", "private_key", "[dom6]/certs/gw/privkey.pem")
modparam("tls_mgm", "ca_list", "[dom6]/certs/wellknownCAs")
modparam("tls_mgm", "tls_method", "[dom6]tlsv1")
modparam("tls_mgm", "verify_cert", "[dom6]0")
...
route{
...
# we match the TLS client domain using the SIP domain in the RURI
$avp(tls_sip_dom) = $rd;
t_relay();
exit;
...
# calls to the PSTN GW, will match the correct TLS domain by IP
t_relay("tls:1.2.3.4:6677");
exit;
...
This module exports the follong variables:
Some variables are available for both, the peer'S certificate and the local certificate. Further, some parameters can be read from the “Subject” field or the “Issuer” field.
$tls_version - the TLS/SSL version which is used on the TLS connection from which the message was received. String type.
$tls_description - the TLS/SSL description of the TLS connection from which the message was received. String type.
$tls_cipher_info - the TLS/SSL cipher which is used on the TLS connection from which the message was received. String type.
$tls_cipher_bits - the number of cipher bits which are used on the TLS connection from which the message was received. String and Integer type.
$tls_[peer|my]_version - the version of the certificate. String type.
$tls_[peer|my]_serial - the serial number of the certificate. String and Integer type.
$tls_[peer|my]_[subject|issuer] - ASCII dump of the fields in the issuer/subject section of the certificate. String type.
Example 1.38. Example of $tls_[peer|my]_[subject|issuer]
/C=AT/ST=Vienna/L=Vienna/O=enum.at/CN=enum.at
$tls_[peer|my]_[subject|issuer]_cn - commonName in the issuer/subject section of the certificate. String type.
$tls_[peer|my]_[subject|issuer]_locality - localityName in the issuer/subject section of the certificate. String type.
$tls_[peer|my]_[subject|issuer]_country - countryName in the issuer/subject section of the certificate. String type.
$tls_[peer|my]_[subject|issuer]_state - stateOrProvinceName in the issuer/subject section of the certificate. String type.
$tls_[peer|my]_[subject|issuer]_organization - organizationName in the issuer/subject section of the certificate. String type.
$tls_[peer|my]_[subject|issuer]_unit - organizationalUnitName in the issuer/subject section of the certificate. String type.
$tls_[peer|my]_san_email - email address in the “subject alternative name” extension. String type.
$tls_[peer|my]_san_hostname - hostname (DNS) in the “subject alternative name” extension. String type.
$tls_[peer|my]_san_uri - URI in the “subject alternative name” extension. String type.
$tls_[peer|my]_san_ip - ip address in the “subject alternative name” extension. String type.
$tls_peer_verified - Returns 1 if the peer's certificate was successful verified. Otherwise it returns 0. String and Integer type.
$tls_peer_revoked - Returns 1 if the peer's certificate was revoked. Otherwise it returns 0. String and Integer type.
$tls_peer_expired - Returns 1 if the peer's certificate is expired. Otherwise it returns 0. String and Integer type.
$tls_peer_selfsigned - Returns 1 if the peer's certificate is selfsigned. Otherwise it returns 0. String and Integer type.
$tls_peer_notBefore - Returns the notBefore validity date of the peer's certificate. String type.
IMPORTANT: The TLS support is based on TCP, and for allowing OpenSIPS to use TCP, it must be started in multi-process mode. So, there is a must to have the "fork" parameter set to "yes":
NOTE: Since the TLS engine is quite memory consuming, increase the used memory by the run time parameter "-m" (see OpenSIPS -h for more details).
fork = yes
Example 1.39. Script with TLS support
# ----------- global configuration parameters ------------------------
log_level=3
log_stderror=no
check_via=no
dns=no
rev_dns=no
socket=udp:your_serv_IP:5060
socket=tls:your_serv_IP:5061
udp_workers=4
# ------------------ module loading ----------------------------------
loadmodule "proto_tls.so"
loadmodule "proto_udp.so"
#TLS specific settings
loadmodule "tls_mgm.so"
modparam("tls_mgm", "certificate", "/path/opensipsX_cert.pem")
modparam("tls_mgm", "private_key", "/path/privkey.pem")
modparam("tls_mgm", "ca_list", "/path/calist.pem")
modparam("tls_mgm", "ca_list", "/path/calist.pem")
modparam("tls_mgm", "require_cert", "1")
modparam("tls_mgm", "verify_cert", "1")
alias=_DNS_ALIAS_
loadmodule "sl.so"
loadmodule "rr.so"
loadmodule "maxfwd.so"
loadmodule "mysql.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "tm.so"
loadmodule "auth.so"
loadmodule "auth_db.so"
loadmodule "textops.so"
loadmodule "sipmsgops.so"
loadmodule "signaling.so"
loadmodule "uri_db.so"
# ----------------- setting module-specific parameters ---------------
# -- auth_db params --
modparam("auth_db", "db_url", "sql_url")
modparam("auth_db", "password_column", "password")
modparam("auth_db", "calculate_ha1", 1)
# -- registrar params --
# no multiple registrations
modparam("registrar", "append_branches", 0)
# ------------------------- request routing logic -------------------
# main routing logic
route{
# initial sanity checks
if (!mf_process_maxfwd_header("10")) {
send_reply("483","Too Many Hops");
exit;
};
# if somene claims to belong to our domain in From,
# challenge him (skip REGISTERs -- we will chalenge them later)
if (is_myself("$fd")) {
setflag(1);
if ( is_method("INVITE|SUBSCRIBE|MESSAGE")
&& !(is_myself("$si")) ) {
if (!(proxy_authorize( "domA.net", "subscriber" ))) {
proxy_challenge("domA.net","0"/*no-qop*/);
exit;
};
if ($au!=$fU) {
xlog("FROM hdr Cheating attempt in INVITE\n");
send_reply("403",
"That is ugly -- use From=id next time (OB)");
exit;
};
}; # non-REGISTER from other domain
} else if ( is_method("INVITE") && !is_myself("$rd") ) {
send_reply("403", "No relaying");
exit;
};
/* ******** do record-route and loose-route ******* */
if (!is_method("REGISTER"))
record_route();
if (loose_route()) {
append_hf("P-hint: rr-enforced\r\n");
t_relay();
exit;
};
/* ******* check for requests targeted out of our domain ******* */
if ( !is_myself("$rd") ) {
append_hf("P-hint: OUTBOUND\r\n");
if ($rd=="domB.net") {
t_relay("tls:domB.net:5061");
} else if ($rd=="domC.net") {
t_relay("tls:domC.net:5061");
} else {
t_relay();
};
exit;
};
/* ******* divert to other domain according to prefixes ******* */
if (!is_method("REGISTER")) {
if ( $ru=~"sip:201") {
strip(3);
$rd = "domB.net";
t_relay("tls:domB.net:5061");
exit;
} else if ( $ru=~"sip:202" ) {
strip(3);
$rd = "domC.net";
t_relay("tls:domC.net:5061");
exit;
};
};
/* ************ requests for our domain ********** */
if (is_method("REGISTER")) {
if (!www_authorize( "domA.net", "subscriber" )) {
# challenge if none or invalid credentials
www_challenge( "domA.net" /* realm */,
"0" /* no qop -- some phones can't deal with it */);
exit;
};
if ($au!=$tU) {
xlog("TO hdr Cheating attempt\n");
send_reply("403", "That is ugly -- use To=id in REGISTERs");
exit;
};
# it is an authenticated request, update Contact database now
if (!save("location")) {
sl_reply_error();
};
exit;
};
# native SIP destinations are handled using USRLOC DB
if (!lookup("location")) {
# handle user which was not found
send_reply("404", "Not Found");
exit;
};
# remove all present Alert-info headers
remove_hf("Alert-Info");
if (is_method("INVITE") && ($rP=="TLS" || isflagset(1))) {
append_hf("Alert-info: 1\r\n"); # cisco 7960
append_hf("Alert-info: Bellcore-dr4\r\n"); # cisco ATA
append_hf("Alert-info: http://foo.bar/x.wav\r\n"); # snom
};
# do forwarding
if (!t_relay()) {
sl_reply_error();
};
#end of script
}
If you want to debug TLS connections, put the following log statements into your OpenSIPS.cfg. This will dump all available TLS pseudo variables.
Example 1.40. Example of TLS logging
xlog("L_INFO","================= start TLS pseudo variables ===============\n");
xlog("L_INFO","$$tls_version = '$tls_version'\n");
xlog("L_INFO","$$tls_description = '$tls_description'\n");
xlog("L_INFO","$$tls_cipher_info = '$tls_cipher_info'\n");
xlog("L_INFO","$$tls_cipher_bits = '$tls_cipher_bits'\n");
xlog("L_INFO","$$tls_peer_subject = '$tls_peer_subject'\n");
xlog("L_INFO","$$tls_peer_issuer = '$tls_peer_issuer'\n");
xlog("L_INFO","$$tls_my_subject = '$tls_my_subject'\n");
xlog("L_INFO","$$tls_my_issuer = '$tls_my_issuer'\n");
xlog("L_INFO","$$tls_peer_version = '$tls_peer_version'\n");
xlog("L_INFO","$$tls_my_version = '$tls_my_version'\n");
xlog("L_INFO","$$tls_peer_serial = '$tls_peer_serial'\n");
xlog("L_INFO","$$tls_my_serial = '$tls_my_serial'\n");
xlog("L_INFO","$$tls_peer_subject_cn = '$tls_peer_subject_cn'\n");
xlog("L_INFO","$$tls_peer_issuer_cn = '$tls_peer_issuer_cn'\n");
xlog("L_INFO","$$tls_my_subject_cn = '$tls_my_subject_cn'\n");
xlog("L_INFO","$$tls_my_issuer_cn = '$tls_my_issuer_cn'\n");
xlog("L_INFO","$$tls_peer_subject_locality = '$tls_peer_subject_locality'\n");
xlog("L_INFO","$$tls_peer_issuer_locality = '$tls_peer_issuer_locality'\n");
xlog("L_INFO","$$tls_my_subject_locality = '$tls_my_subject_locality'\n");
xlog("L_INFO","$$tls_my_issuer_locality = '$tls_my_issuer_locality'\n");
xlog("L_INFO","$$tls_peer_subject_country = '$tls_peer_subject_country'\n");
xlog("L_INFO","$$tls_peer_issuer_country = '$tls_peer_issuer_country'\n");
xlog("L_INFO","$$tls_my_subject_country = '$tls_my_subject_country'\n");
xlog("L_INFO","$$tls_my_issuer_country = '$tls_my_issuer_country'\n");
xlog("L_INFO","$$tls_peer_subject_state = '$tls_peer_subject_state'\n");
xlog("L_INFO","$$tls_peer_issuer_state = '$tls_peer_issuer_state'\n");
xlog("L_INFO","$$tls_my_subject_state = '$tls_my_subject_state'\n");
xlog("L_INFO","$$tls_my_issuer_state = '$tls_my_issuer_state'\n");
xlog("L_INFO","$$tls_peer_subject_organization = '$tls_peer_subject_organization'\n");
xlog("L_INFO","$$tls_peer_issuer_organization = '$tls_peer_issuer_organization'\n");
xlog("L_INFO","$$tls_my_subject_organization = '$tls_my_subject_organization'\n");
xlog("L_INFO","$$tls_my_issuer_organization = '$tls_my_issuer_organization'\n");
xlog("L_INFO","$$tls_peer_subject_unit = '$tls_peer_subject_unit'\n");
xlog("L_INFO","$$tls_peer_issuer_unit = '$tls_peer_issuer_unit'\n");
xlog("L_INFO","$$tls_my_subject_unit = '$tls_my_subject_unit'\n");
xlog("L_INFO","$$tls_my_issuer_unit = '$tls_my_issuer_unit'\n");
xlog("L_INFO","$$tls_peer_san_email = '$tls_peer_san_email'\n");
xlog("L_INFO","$$tls_my_san_email = '$tls_my_san_email'\n");
xlog("L_INFO","$$tls_peer_san_hostname = '$tls_peer_san_hostname'\n");
xlog("L_INFO","$$tls_my_san_hostname = '$tls_my_san_hostname'\n");
xlog("L_INFO","$$tls_peer_san_uri = '$tls_peer_san_uri'\n");
xlog("L_INFO","$$tls_my_san_uri = '$tls_my_san_uri'\n");
xlog("L_INFO","$$tls_peer_san_ip = '$tls_peer_san_ip'\n");
xlog("L_INFO","$$tls_my_san_ip = '$tls_my_san_ip'\n");
xlog("L_INFO","$$tls_peer_verified = '$tls_peer_verified'\n");
xlog("L_INFO","$$tls_peer_revoked = '$tls_peer_revoked'\n");
xlog("L_INFO","$$tls_peer_expired = '$tls_peer_expired'\n");
xlog("L_INFO","$$tls_peer_selfsigned = '$tls_peer_selfsigned'\n");
xlog("L_INFO","$$tls_peer_notBefore = '$tls_peer_notBefore'\n");
xlog("L_INFO","$$tls_peer_notAfter = '$tls_peer_notAfter'\n");
xlog("L_INFO","================= end TLS pseudo variables ===============\n");
struct tls_domain *find_server_domain(struct ip_addr *ip, unsigned short port);
Find a TLS server domain with given ip and port (local listening socket).
struct tls_domain *find_client_domain(struct ip_addr *ip, unsigned short port);
Find TLS client domain.
Initialization related functions and parameters.
extern SSL_CTX *default_client_ctx;
The ssl context is a member of the TLS domain strcuture. Thus, every TLS domain, default and virtual - servers and clients, have its own SSL context.
int init_tls(void);
Called once to pre_initialize the tls subsystem, from the main(). Called before parsing the configuration file.
int init_tls(void);
Called once to initialize the tls subsystem, from the main(). Called after parsing the configuration file.
int tls_init(struct socket_info *c);
Called once for each tls socket created, from main.c
Wrapper functions around the shm_* functions. OpenSSL uses non-shared memory to create its objects, thus it would not work in OpenSIPS. By creating these wrappers and configuring OpenSSL to use them instead of its default memory functions, we have all OpenSSL objects in shared memory, ready to use.
extern struct tls_domain *tls_default_server_domain;
The default TLS server domain.
extern struct tls_domain *tls_default_client_domain;
The default TLS client domain.
extern struct tls_domain *tls_server_domains;
List with defined server domains.
extern struct tls_domain *tls_client_domains;
List with defined client domains.
struct tls_domain *tls_find_server_domain(struct ip_addr *ip, unsigned short port);
Find a TLS server domain with given ip and port (local listening socket).
struct tls_domain *tls_find_client_domain(struct ip_addr *ip, unsigned short port);
Find TLS client domain.
struct tls_domain *tls_find_client_domain_addr(struct ip_addr *ip, unsigned short port);
Find TLS client domain with given ip and port (socket of the remote destination).
struct tls_domain *tls_find_client_name(str name);
Find TLS client domain with given name.
struct tls_domain *tls_new_domain(int type);
Creates new TLS: allocate memory, set the type and initialize members
int tls_new_server_domain(struct ip_addr *ip, unsigned short port);
Creates and adds to the list of TLS server domains a new domain.
int tls_new_client_domain(struct ip_addr *ip, unsigned short port);
Creates and adds to the list of TLS client domains a new socket based domain.
int tls_new_client_domain_name(char *s, int len);
Creates and adds to the list of TLS client domains a new name based domain.
Table 3.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
| Name | DevScore | Commits | Lines ++ | Lines -- | |
|---|---|---|---|---|---|
| 1. | Vlad Patrascu (@rvlad-patrascu) | 176 | 56 | 4817 | 4881 |
| 2. | Razvan Crainea (@razvancrainea) | 80 | 56 | 1369 | 703 |
| 3. | Eseanu Marius Cristian (@eseanucristian) | 52 | 11 | 4268 | 321 |
| 4. | Liviu Chircu (@liviuchircu) | 25 | 19 | 170 | 231 |
| 5. | Bogdan-Andrei Iancu (@bogdan-iancu) | 24 | 13 | 291 | 460 |
| 6. | Dan Pascu (@danpascu) | 17 | 13 | 90 | 176 |
| 7. | Ionut Ionita (@ionutrazvanionita) | 16 | 9 | 383 | 169 |
| 8. | Ionel Cerghit (@ionel-cerghit) | 8 | 1 | 494 | 109 |
| 9. | Alexey Vasilyev (@vasilevalex) | 4 | 2 | 33 | 19 |
| 10. | Maksym Sobolyev (@sobomax) | 4 | 2 | 4 | 18 |
All remaining contributors: Callum Guy (@spacetourist), Aleksei Vasilev, Fabian Gast (@fgast), Nick Altmann (@nikbyte), Ovidiu Sas (@ovidiusas), Peter Lemenkov (@lemenkov).
(1) DevScore = author_commits + author_lines_added / (project_lines_added / project_commits) + author_lines_deleted / (project_lines_deleted / project_commits)
(2) including any documentation-related commits, excluding merge commits. Regarding imported patches/code, we do our best to count the work on behalf of the proper owner, as per the "fix_authors" and "mod_renames" arrays in opensips/doc/build-contrib.sh. If you identify any patches/commits which do not get properly attributed to you, please submit a pull request which extends "fix_authors" and/or "mod_renames".
(3) ignoring whitespace edits, renamed files and auto-generated files
Table 3.2. Most recently active contributors(1) to this module
| Name | Commit Activity | |
|---|---|---|
| 1. | Vlad Patrascu (@rvlad-patrascu) | Apr 2017 - Jan 2023 |
| 2. | Nick Altmann (@nikbyte) | May 2021 - May 2021 |
| 3. | Aleksei Vasilev | Apr 2021 - Apr 2021 |
| 4. | Maksym Sobolyev (@sobomax) | Mar 2016 - Sep 2020 |
| 5. | Liviu Chircu (@liviuchircu) | Oct 2015 - Aug 2020 |
| 6. | Bogdan-Andrei Iancu (@bogdan-iancu) | Mar 2016 - Apr 2020 |
| 7. | Dan Pascu (@danpascu) | Jun 2019 - Feb 2020 |
| 8. | Razvan Crainea (@razvancrainea) | Sep 2015 - Feb 2020 |
| 9. | Fabian Gast (@fgast) | Jan 2020 - Jan 2020 |
| 10. | Alexey Vasilyev (@vasilevalex) | Nov 2018 - May 2019 |
All remaining contributors: Callum Guy (@spacetourist), Peter Lemenkov (@lemenkov), Ovidiu Sas (@ovidiusas), Ionut Ionita (@ionutrazvanionita), Ionel Cerghit (@ionel-cerghit), Eseanu Marius Cristian (@eseanucristian).
(1) including any documentation-related commits, excluding merge commits
Last edited by: Vlad Patrascu (@rvlad-patrascu), Liviu Chircu (@liviuchircu), Bogdan-Andrei Iancu (@bogdan-iancu), Dan Pascu (@danpascu), Razvan Crainea (@razvancrainea), Callum Guy (@spacetourist), Peter Lemenkov (@lemenkov), Eseanu Marius Cristian (@eseanucristian).
Documentation Copyrights:
Copyright © 2015 www.opensips-solutions.com
Copyright © 2013 Secusmart GmbH
Copyright © 2006 enum.at
Copyright © 2005 Cesc Santasusana
Copyright © 2005 Voice Sistem SRL