[OpenSIPS-Users] Nat_Traversal and keepalive messages
mmarzuola at interfree.it
mmarzuola at interfree.it
Mon Dec 29 17:48:11 CET 2008
2008/12/29 :
>
> Hi all.
> I'm trying to use the nat_traversal module.
> Sniffing the traffic I have noticed that even if a user agent stops its registering, the keepalive messages (I chose NOTIFY) continue to be sent by proxy to the UAs who had previously registered.
> Is there a configuration error, or is there a way to stop these messages in case of no response from the UAs?
>nat_traversal keeps the keepalive in case there is an active INVITE or
>SUBSCRIBE dialog, or an alive REGISTER. Are you sure you didn't call
>"keepalive()" during an INVITE or SUBSCRIBE process from the same
>client?
Yes, I'm sure.
This is my opensips.cfg:
####### Global Parameters #########
debug=3
log_stderror=no
log_facility=LOG_LOCAL0
fork=yes
children=4
/* uncomment the following lines to enable debugging */
#debug=6
#fork=no
#log_stderror=yes
/* uncomment the next line to disable TCP (default on) */
#disable_tcp=yes
/* uncomment the next line to enable the auto temporary blacklisting of
not available destinations (default disabled) */
#disable_dns_blacklist=no
/* uncomment the next line to enable IPv6 lookup after IPv4 dns
lookup failures (default disabled) */
#dns_try_ipv6=yes
/* uncomment the next line to disable the auto discovery of local aliases
based on revers DNS on IPs (default on) */
#auto_aliases=no
/* uncomment the following lines to enable TLS support (default off) */
#disable_tls = no
#listen = tls:your_IP:5061
#tls_verify_server = 1
#tls_verify_client = 1
#tls_require_client_certificate = 0
#tls_method = TLSv1
#tls_certificate = "/usr/local/etc/opensips/tls/user/user-cert.pem"
#tls_private_key = "/usr/local/etc/opensips/tls/user/user-privkey.pem"
#tls_ca_list = "/usr/local/etc/opensips/tls/user/user-calist.pem"
port=5060
/* uncomment and configure the following line if you want opensips to
bind on a specific interface/port/proto (default bind on all available) */
listen=udp:10.10.45.158:5060
####### Modules Section ########
#set module path
mpath="/usr/local/lib/opensips/modules/"
/* uncomment next line for MySQL DB support */
loadmodule "db_mysql.so"
loadmodule "sl.so"
loadmodule "tm.so"
loadmodule "rr.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "mi_fifo.so"
loadmodule "mi_datagram.so"
loadmodule "uri_db.so"
loadmodule "uri.so"
loadmodule "xlog.so"
loadmodule "acc.so"
loadmodule "siptrace.so"
loadmodule "avpops.so"
#loadmodule "dialog.so"
loadmodule "options.so"
loadmodule "mediaproxy.so"
loadmodule "nat_traversal.so"
/* uncomment next lines for MySQL based authentication support
NOTE: a DB (like db_mysql) module must be also loaded */
loadmodule "auth.so"
loadmodule "auth_db.so"
/* uncomment next line for aliases support
NOTE: a DB (like db_mysql) module must be also loaded */
#loadmodule "alias_db.so"
/* uncomment next line for multi-domain support
NOTE: a DB (like db_mysql) module must be also loaded
NOTE: be sure and enable multi-domain support in all used modules
(see "multi-module params" section ) */
loadmodule "domain.so"
/* uncomment the next two lines for presence server support
NOTE: a DB (like db_mysql) module must be also loaded */
#loadmodule "presence.so"
#loadmodule "presence_xml.so"
# ----------------- setting module-specific parameters ---------------
# ----- mi_fifo params -----
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
modparam("mi_fifo", "fifo_mode", 0666)
# ----- mi_datagram params -----
modparam("mi_datagram", "socket_name", "/tmp/opensips.sock")
modparam("mi_datagram", "unix_socket_mode", 0666)
# ----- rr params -----
# add value to ;lr param to cope with most of the UAs
modparam("rr", "enable_full_lr", 1)
# do not append from tag to the RR (no need for this script)
modparam("rr", "append_fromtag", 1)
# ----- rr params -----
modparam("registrar", "method_filtering", 1)
/* uncomment the next line to disable parallel forking via location */
# modparam("registrar", "append_branches", 0)
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)
modparam("registrar", "received_avp", "$avp(s:received_uri)")
# ----- uri_db params -----
/* by default we disable the DB support in the module as we do not need it
in this configuration */
modparam("uri_db", "use_uri_table", 0)
modparam("uri_db", "db_url", "")
# ----- acc params -----
/* what sepcial events should be accounted ? */
modparam("acc", "early_media", 1)
modparam("acc", "report_ack", 1)
modparam("acc", "report_cancels", 1)
/* by default ww do not adjust the direct of the sequential requests.
if you enable this parameter, be sure the enable "append_fromtag"
in "rr" module */
modparam("acc", "detect_direction", 1)
/* account triggers (flags) */
modparam("acc", "failed_transaction_flag", 3)
modparam("acc", "log_flag", 1)
modparam("acc", "log_missed_flag", 2)
/* uncomment the following lines to enable DB accounting also */
modparam("acc", "db_url", "mysql://opensips:opensipsrw@localhost/opensips")
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 2)
modparam("acc", "log_extra", "caller_id=$avp(s:user);callee_id=$tu;destination=$rd")
modparam("acc", "db_extra", "caller_id=$avp(s:user);callee_id=$tu;destination=$rd")
# ----- usrloc params -----
#modparam("usrloc", "db_mode", 0)
/* uncomment the following lines if you want to enable DB persistency
for location entries */
modparam("usrloc", "db_mode", 2)
modparam("usrloc", "db_url",
"mysql://opensips:opensipsrw@localhost/opensips")
# ----- auth_db params -----
/* uncomment the following lines if you want to enable the DB based
authentication */
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")
modparam("auth_db", "db_url",
"mysql://opensips:opensipsrw@localhost/opensips")
modparam("auth_db", "load_credentials", "")
# ----- siptrace params -----
modparam("siptrace", "db_url", "mysql://opensips:opensipsrw@localhost/opensips")
modparam("siptrace", "trace_on", 1)
modparam("siptrace", "table", "sip_trace")
modparam("siptrace", "traced_user_avp", "$avp(s:user)")
# -----xlog params -----
modparam("xlog", "buf_size", 4096)
modparam("xlog", "force_color", 0)
# -----avpops params -----
modparam("avpops", "avp_url", "mysql://opensips:opensipsrw@localhost/opensips")
modparam("avpops","avp_table","usr_preferences")
# ----- alias_db params -----
/* uncomment the following lines if you want to enable the DB based
aliases */
#modparam("alias_db", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")
# ----- domain params -----
/* uncomment the following lines to enable multi-domain detection
support */
modparam("domain", "db_url",
"mysql://opensips:opensipsrw@localhost/opensips")
modparam("domain", "db_mode", 1) # Use caching
# ----- multi-module params -----
/* uncomment the following line if you want to enable multi-domain support
in the modules (dafault off) */
modparam("auth_db|usrloc|uri_db", "use_domain", 1)
# ----- mediaproxy params -----
modparam("mediaproxy", "disable", 0)
modparam("mediaproxy", "mediaproxy_socket", "/var/run/mediaproxy/dispatcher.sock")
# ----- dialog params -----
#modparam("dialog", "db_url", "mysql://opensips:opensipsrw@localhost/opensips")
#modparam("dialog", "db_mode", 1)
#modparam("dialog", "table_name", "dialog")
#modparam("dialog", "db_update_period", 60)
#modparam("dialog", "dlg_flag", 4)
# ----- nat_traversal -----
modparam("nat_traversal", "keepalive_interval", 90)
modparam("nat_traversal", "keepalive_state_file", "/var/run/opensips/keepalive_state")
# ----- presence params -----
/* uncomment the following lines if you want to enable presence */
#modparam("presence|presence_xml", "db_url",
# "mysql://opensips:opensipsrw@localhost/opensips")
#modparam("presence_xml", "force_active", 1)
#modparam("presence", "server_address", "sip:192.168.1.2:5060")
####### Routing Logic ########
# main request routing logic
route{
xlog("L_INFO", "New request - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
if(!is_method("OPTIONS")) {
sip_trace();
$avp(s:user)="sip:" + $fU + "@" + $(fu{uri.domain});
}
if (!mf_process_maxfwd_header("10")) {
xlog("L_INFO", "Too many hops\n");
sl_send_reply("483","Too Many Hops");
exit;
}
if (has_totag()) {
# sequential request withing a dialog should
# take the path determined by record-routing
if (loose_route()) {
if (is_method("BYE")) {
setflag(1); # do accounting ...
setflag(3); # ... even if the transaction fails
end_media_session();
}
route(1);
} else {
if ( is_method("ACK") ) {
if ( t_check_trans() ) {
# non loose-route, but stateful ACK; must be an ACK after a 487 or e.g. 404 from upstream server
t_relay();
exit;
} else {
# ACK without matching transaction ... ignore and discard.\n");
exit;
}
}
sl_send_reply("404","Not here");
}
exit;
}
#initial requests
# CANCEL processing
if (is_method("CANCEL"))
{
if (t_check_trans())
t_relay();
exit;
}
t_check_trans();
# authenticate if from local subscriber (uncomment to enable auth)
#if (!(method=="REGISTER") && $var(fromURI)=~".*@mysip.com")
if ((method=="INVITE") && is_from_local())
{
if (!proxy_authorize("", "subscriber")) {
proxy_challenge("", "0");
exit;
}
if (!check_from()) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
consume_credentials();
xlog("L_INFO","caller autenticato\n");
# caller authenticated
}
# record routing
if (!is_method("REGISTER|MESSAGE")) {
xlog("L_INFO", "Recording Route info\n");
record_route();
}
# account only INVITEs
if (is_method("INVITE")) {
xlog("L_INFO", "Method is an INVITE\n");
#setflag(4);
setflag(1); # do accounting
use_media_proxy();
}
#if (!uri==myself)
/* replace with following line if multi-domain support is used */
if (!is_uri_host_local())
{
xlog("L_INFO","messaggio per altra destinazione\n");
append_hf("P-hint: outbound\r\n");
# if you have some interdomain connections via TLS
##if($rd=="tls_domain1.net") {
## t_relay("tls:domain1.net");
## exit;
##} else if($rd=="tls_domain2.net") {
## t_relay("tls:domain2.net");
## exit;
##}
route(1);
}
# requests for my domain
/* uncomment this if you want to enable presence server
and comment the next 'if' block
NOTE: uncomment also the definition of route[2] from below */
##if( is_method("PUBLISH|SUBSCRIBE"))
## route(2);
if (is_method("PUBLISH"))
{
sl_send_reply("503", "Service Unavailable");
exit;
}
if (method==OPTIONS) {
xlog("L_INFO","risposta per l'OPTIONS \n");
options_reply();
}
if (is_method("REGISTER"))
{
if (client_nat_test("3")) {
nat_keepalive();
xlog("L_INFO","Nat test success\n");
}
force_rport();
$avp(s:received_uri) = $source_uri;
#authenticate the REGISTER requests (uncomment to enable auth)
if (!www_authorize("", "subscriber"))
{
www_challenge("", "0");
exit;
}
if (!check_to())
{
sl_send_reply("403","Forbidden auth ID");
exit;
}
if (!save("location"))
sl_reply_error();
exit;
}
if ($rU==NULL) {
# request with no Username in RURI
sl_send_reply("484","Address Incomplete");
exit;
}
# apply DB based aliases (uncomment to enable)
##alias_db_lookup("dbaliases");
if (!lookup("location")) {
switch ($retcode) {
case -1:
case -3:
t_newtran();
t_reply("404", "Not Found");
exit;
case -2:
sl_send_reply("405", "Method Not Allowed");
exit;
}
}
# when routing via usrloc, log the missed calls also
setflag(2);
route(1);
}
route[1] {
# for INVITEs enable some additional helper routes
if (is_method("INVITE")) {
t_on_branch("2");
t_on_reply("2");
t_on_failure("1");
}
if (!t_relay()) {
sl_reply_error();
};
exit;
}
branch_route[2] {
xlog("new branch at $ru\n");
}
onreply_route[2] {
xlog("incoming reply\n");
use_media_proxy();
}
failure_route[1] {
if (t_was_cancelled()) {
exit;
}
}
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