22 Aug
2012
22 Aug
'12
4:51 a.m.
Hello,
I am working on Kamailio 3.2.2. There is no traffic, only functional test done.
Based on the SIP Client used until now (Xlite), the INVITE is systematically authenticated
by 407 as there is no Proxy-Authorization in the initial INVITE. Expected/normal
behavior.
But when using an internal SIP client, the initial INVITE is generated with a
Proxy-Authorization containing the nonce value used by the successful registration.
In Authorization of Register (the answer is 200OK)
Digest username="+33296488922(a)ims.v0.pftest.net".net",
realm="sip:ims.v0.pftest.net",
nonce="UDP43lAzpH7SjicT6+9/KDDloW4OTfTXoGWlZurBVut0JV604jox/QY+tVeA",
uri="sip:ims.v0.pftest.net",
response="4ed51b8e62cf769b19f8c4771e068ad3",
cnonce="06440000000529330fe1", qop=auth, nc=00000011
In Proxy-Authorization of Invite
Digest username="+33296488922(a)ims.v0.pftest.net".net",
realm="sip:ims.v0.pftest.net",
nonce="UDP43lAzpH7SjicT6+9/KDDloW4OTfTXoGWlZurBVut0JV604jox/QY+tVeA",
uri="sip:0157361149@ims.v0.pftest.net",
response="b247052d6d5b37e0b6677c816390cb77",
cnonce="06440000000529330fe1", qop=auth, nc=00000012
As the nonce expire is high (see nonce_expire), I don't understand why Kamailio
requests the Authentication of the INVITE by 407.
407 with Proxy-Authenticate: Digest realm="ims.v0.pftest.net",
nonce="UDP6pVAzpkWDF+jSlP3zzVYcuNPhY8NQBj62WIA=", qop="auth",
stale=true
Does it mean that the REGISTER and INVITE are using different Nonce value ?
==> Information on my configuration file.
modparam("auth_db", "db_url", DBURLAUTH)
modparam("auth", "auth_checks_register", 6) # callid and From TAG
modparam("auth", "qop", "auth") # enable qop=auth
modparam("auth", "nonce_count", 1) # enable nonce_count support
modparam("auth", "nonce_expire", 21600) # Set nonce_expire to 6
hours
For register, I do
if (!www_authorize("$ru", "subscriber"))
{
if($? == -2 || $? == -3) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
else {
www_challenge("$ru", "17");
exit;
}
}
For invite, I do
if (!proxy_authorize("$fd", "subscriber"))
{
if($? == -2 || $? == -3) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
else {
proxy_challenge("$fd", "17");
xlog("L_INFO","INVITE challenged by 407 to :$di:$dp
\n");
exit;
}
}
Followed by consume_credentials();
Thanks in advance for your support.
Patrice B
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