Hi all.
I have next problem while using openser with tls. System consists of
sip statefull server (in next time, simply, server) and stateless sip
gateway (gateway). Server used for connect to jabber server. Server
contains rewrote jabber module logic and also use presence module.
Gateway used to connect to other sip gateway (extgateway) via tls
protocol. Gateway use 1.1 openser version and doesn’t contain changed
code. When server together with gateway restarts and server in its
database contains above 260 subscriptions (in watcherinfo table) i
have error. Socket used by gateway to connect with extgateway
contains in receive and sent queues a lot of data (above 50kByte on
each sides). This data never flushed out. This happens because after
restart sip server through gateway send notifications to extgateway.
When I attached using gdb to process that send data, I saw that it
was in infinity loop because tls library returns SSL_ERROR_WANT_WRITE
and I think it’s correct because we have overfilled send queue. In
this case I don’t interest why receive queue not empty (I think it
happens because sending process have got block on socket). But I
don’t understand why sent queue not flushed. I test this behavior
using tcp – all was correct. Socket not closed by other side because
this status can be unchanged above one day. Anybody can help me? Why
this happens?
I use openssl-0.9.8c and redhat os (Linux xdevel1 2.4.21-4.ELsmp #1
SMP Fri Oct 3 17:52:56 EDT 2003 i686 i686 i386 GNU/Linux). Computer
have too Pentium 4 processors).
Gateway.cfg (sip.qa.hbex.com – gateway address):
# # $Id: router_qa.cfg,v 1.1 2006/08/02 18:14:34 ilya Exp $ # #
simple quick-start config script #
# ----------- global configuration parameters
------------------------
debug=9 # debug level (cmd line: -dddddddddd)
log_facility=LOG_LOCAL0 fork=yes log_stderror=yes # (cmd line: -E)
check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r)
rev_dns=no # (cmd. line: -R) children=20
fifo="/tmp/openser_fifo" server_signature=no
fifo_db_url="mysql://root:@localhost/openser"
listen = udp:sip.qa.hbex.com:5060 #incoming sip server address listen
= tcp:sip.qa.hbex.com:5060
#tls address disable_tls = 0 listen = tls:sip.qa.hbex.com:5061 listen
= udp:sip.qa.hbex.com:5061
tls_certificate = "/ home/inop/ex.com-cert.pem" tls_private_key =
"/home/inop/ex.com-privkey.pem" tls_ca_list =
"/home/inop/ex.com-calist.pem" tls_require_client_certificate=0
tls_verify_client=0 tls_verify_server=0
# ------------------ module loading
---------------------------------- loadmodule
"/home/interop/openser/lib/openser/modules/rr.so" loadmodule
"/home/interop/openser/lib/openser/modules/xlog.so" loadmodule
"/home/interop/openser/lib/openser/modules/textops.so" loadmodule
"/home/interop/openser/lib/openser/modules/maxfwd.so" loadmodule
"/home/interop/openser/lib/openser/modules/sl.so" loadmodule
"/home/interop/openser/lib/openser/modules/mysql.so" loadmodule
"/home/interop/openser/lib/openser/modules/tm_unchanged.so"
loadmodule "/home/interop/openser/lib/openser/modules/usrloc.so"
loadmodule "/home/interop/openser/lib/openser/modules/registrar.so"
# ----------------- setting module-specific parameters
--------------- modparam("registrar", "default_expires", 120)
modparam("registrar", "use_domain", 1)
modparam("usrloc", "use_domain", 1) modparam("usrloc", "db_mode",
0) # Uncomment this if you want to use SQL database # for persistent
storage and comment the previous line #modparam("usrloc", "db_mode",
2)
# add value to ;lr param to make some broken UAs happy modparam("rr",
"enable_full_lr", 1) modparam("maxfwd", "max_limit", 10) #
------------------------- request routing logic -------------------
# main routing logic route{ if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","To Many Hops"); drop(); }; if (dst_port==5061) {
if (search("^To:[EMAIL PROTECTED]") || search("^To:[EMAIL PROTECTED]"))
{ # rewrite destination and forward to jabber (sip server) route(1);
return; }; sl_reply_error(); return; } if (method=="REGISTER") {
xlog("XXX: saving location msg=$mb\n"); if(!save_noreply("location"))
{ log("XXX: Error saving location!\n"); sl_reply_error(); }
sl_send_reply("200","OK"); return; } if
(search("^To:[EMAIL PROTECTED]") || search("^To:[EMAIL PROTECTED]")) {
#forward to self route(3); return; } ##forward to ext gateway
route(2); }
route[1]{ if (method!="MESSAGE" && method!="SUBSCRIBE" &&
method!="NOTIFY") { log("XXX: Request not forwarded to sip
server!\n"); sl_send_reply("202","Accepted"); return; }
t_on_reply("1"); record_route();
if(!lookup("location")) { if (method!="SUBSCRIBE") { log("XXX: only
subscribes are processed for user that are not registered\n");
sl_reply_error(); return; }
subst_uri('/(.*)@(.*)/[EMAIL PROTECTED]/ig');
if(!t_relay()) { log("XXX: error forwarding jabber01...\n");
sl_reply_error(); return; } else { sl_send_reply("200","OK"); return;
} } else { log("XXX: forwarding to the address of record...\n");
if(!t_relay()) { log("XXX: error forwarding to address of record
\n"); sl_reply_error(); return; } else { sl_send_reply("200", "OK");
return; } }
}
# forwarding to external gateway route[2]{ log("XXX: rewriting
headers\n");
subst('/^(From:[EMAIL PROTECTED])#([EMAIL PROTECTED])[EMAIL PROTECTED](.*)/[EMAIL PROTECTED]/ig');
subst('/^(Contact:[EMAIL PROTECTED])#([EMAIL PROTECTED])[EMAIL PROTECTED](.*)/[EMAIL PROTECTED]/ig');
if(!forward("tls:43.123.141.166:3000")) { log("XXX: Error forwarding
to external gateway!\n"); sl_reply_error(); } else {
sl_send_reply("200", "Accepted"); }; }
# forwarding to SELF route[3]{ log("XXX: rewriting headers\n");
subst('/^(From:[EMAIL PROTECTED])#([EMAIL PROTECTED])[EMAIL PROTECTED](.*)/[EMAIL PROTECTED]/ig');
subst('/^(Contact:[EMAIL PROTECTED])#([EMAIL PROTECTED])[EMAIL PROTECTED](.*)/[EMAIL PROTECTED]/ig');
log("XXX: about to forward to self\n");
if(!forward("tcp:sip.qa.hbex.com:5061")) { log("XXX: Error forwarding
to self!\n"); sl_reply_error(); } else { sl_send_reply("200",
"Accepted"); }; }
# this is executed for replies onreply_route[1]{
subst('/^(To:[EMAIL PROTECTED])#([EMAIL PROTECTED])[EMAIL PROTECTED](.*)/[EMAIL PROTECTED]/ig');
subst('/^(Contact:[EMAIL PROTECTED])#([EMAIL PROTECTED])[EMAIL PROTECTED](.*)/[EMAIL PROTECTED]/ig');
route(2); }
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