Hi,
I need some help with digest authentication.
When
I uncomment those lines in ser.cfg, the register msg stops to work. In the
trace, see below, you can see the nonce being sent in the re-register msg, but
the server still responds with 401 Unauthorized. I've tried with both 0 and 1 in
the www_challenge.
Without the digest authentication the register works
fine.
Thanks in advance,
//Magnus
ser.cfg (ser 0.8.12
running on a Fedora box. Used for test purpose
only):
====================================================
# -----------
global configuration parameters
------------------------
#debug=3
# debug level (cmd line:
-dddddddddd)
#fork=yes
#log_stderror=no
# (cmd line: -E)
/* Uncomment these lines to enter debugging
mode
debug=7
fork=no
log_stderror=yes
*/
check_via=no
# (cmd. line:
-v)
dns=no #
(cmd. line: -r)
rev_dns=no # (cmd. line:
-R)
#port=5060
#children=4
fifo="/tmp/ser_fifo"
sip_warning=no
alias="sip_server_ip"
#
------------------ module loading ----------------------------------
#
Uncomment this if you want to use SQL database
loadmodule
"/usr/lib/ser/modules/mysql.so"
loadmodule
"/usr/lib/ser/modules/sl.so"
loadmodule
"/usr/lib/ser/modules/tm.so"
loadmodule
"/usr/lib/ser/modules/rr.so"
loadmodule
"/usr/lib/ser/modules/maxfwd.so"
loadmodule
"/usr/lib/ser/modules/usrloc.so"
loadmodule
"/usr/lib/ser/modules/registrar.so"
loadmodule
"/usr/lib/ser/modules/pa.so"
# Uncomment this if you want digest
authentication
# mysql.so must be loaded !
loadmodule
"/usr/lib/ser/modules/auth.so"
loadmodule
"/usr/lib/ser/modules/auth_db.so"
# ----------------- setting
module-specific parameters ---------------
# -- usrloc params
--
#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)
# -- auth params
--
# Uncomment if you are using auth module
#
modparam("auth_db",
"calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes
(which true in this config),
# uncomment also the following
parameter)
#
modparam("auth_db", "password_column", "password")
#
-- rr params --
# add value to ;lr param to make some broken UAs
happy
modparam("rr", "enable_full_lr", 1)
#
------------------------- request routing logic
-------------------
# main routing
logic
route{
# initial
sanity checks -- messages with
#
max_forwards==0, or excessively long
requests
if
(!mf_process_maxfwd_header("10"))
{
sl_send_reply("483","Too Many
Hops");
break;
};
if ( msg:len > max_len )
{
sl_send_reply("513", "Message too
big");
break;
};
# we record-route all
messages -- to make sure that
#
subsequent messages will go through our proxy;
that's
# particularly good if
upstream and downstream entities
#
use different transport protocol
record_route();
# loose-route
processing
if (loose_route())
{
t_relay();
break;
};
# if the request is for
other domain use UsrLoc
# (in
case, it does not work, use the following
command
# with proper names and
addresses in it)
if (uri ==
myself ) {
if (method=="SUBSCRIBE")
{
if(t_newtran()){
handle_subscription("registrar");
break;
};
};
if (method=="REGISTER") {
#
Uncomment this if you want to use digest
authentication
if (!www_authorize("sip_server_ip",
"subscriber")) {
www_challenge("sip_server_ip",
"1");
break;
};
save("location");
break;
};
# native SIP destinations are handled
using our USRLOC DB
if (!lookup("location"))
{
sl_send_reply("404", "Not
Found");
break;
};
};
# forward to current uri now;
use stateful forwarding; that
#
works reliably even if we forward from TCP to
UDP
if (!t_relay())
{
sl_reply_error();
};
}
Register trace:
==========
REGISTER sip:sip_server_ip
SIP/2.0
Via: SIP/2.0/UDP
local_pc_ip:5060;rport;branch=z9hG4bK4268DFDFE5EE410C8DB113A6223C800C
From:
Magnus <sip:magnus@sip_server_ip>;tag=470300110
To: Magnus
<sip:magnus@sip_server_ip>
Contact: "Magnus"
<sip:magnus@local_pc_ip:5060>
Call-ID:
EB7272E371C24F6C8F24DB47A53EE7CB@sip_server_ip
CSeq: 6590
REGISTER
Expires: 1800
Max-Forwards: 70
User-Agent: X-Lite release
1103m
Content-Length: 0
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP
local_pc_ip:5060;rport=5060;branch=z9hG4bK4268DFDFE5EE410C8DB113A6223C800C
From:
Magnus <sip:magnus@sip_server_ip>;tag=470300110
To: Magnus
<sip:magnus@sip_server_ip>;tag=b27e1a1d33761e85846fc98f5f3a7e58.0d0e
Call-ID:
EB7272E371C24F6C8F24DB47A53EE7CB@sip_server_ip
CSeq: 6590
REGISTER
WWW-Authenticate: Digest realm="sip_server_ip",
nonce="41d1321431d402c1af9617eb73deccbce7e532d5", qop="auth"
Server: Sip
EXpress router (0.8.12 (i386/linux))
Content-Length: 0
REGISTER
sip:sip_server_ip SIP/2.0
Via: SIP/2.0/UDP
local_pc_ip:5060;rport;branch=z9hG4bK1813C486770C442BB51E58686A61921F
From:
Magnus <sip:magnus@sip_server_ip>;tag=470300110
To: Magnus
<sip:magnus@sip_server_ip>
Contact: "Magnus"
<sip:magnus@local_pc_ip:5060>
Call-ID:
EB7272E371C24F6C8F24DB47A53EE7CB@sip_server_ip
CSeq: 6591
REGISTER
Expires: 1800
Authorization: Digest
username="magnus",realm="sip_server_ip",nonce="41d1321431d402c1af9617eb73deccbce7e532d5",response="27ea80aed1b9f5086b396c8f86bcec60",uri="sip:sip_server_ip",qop=auth,cnonce="9F5BBA98D6724D909C6560E8A045A300",nc=00000006
Max-Forwards:
70
User-Agent: X-Lite release 1103m
Content-Length: 0
SIP/2.0 401
Unauthorized
Via: SIP/2.0/UDP
local_pc_ip:5060;rport=5060;branch=z9hG4bK1813C486770C442BB51E58686A61921F
From:
Magnus <sip:magnus@sip_server_ip>;tag=470300110
To: Magnus
<sip:magnus@sip_server_ip>;tag=b27e1a1d33761e85846fc98f5f3a7e58.9cf2
Call-ID:
EB7272E371C24F6C8F24DB47A53EE7CB@sip_server_ip
CSeq: 6591
REGISTER
WWW-Authenticate: Digest realm="sip_server_ip",
nonce="41d1321431d402c1af9617eb73deccbce7e532d5", qop="auth"
Server: Sip
EXpress router (0.8.12 (i386/linux))
Content-Length:
0
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