[reSIProcate] other unknown header field

[xutm]

Hi all,
    I am using repro in resiprocate-1.4.1 as a SIP proxy server, and PJSIP
as a SIP Client. Now I have two problems:

1. Repro should run with a public IP address and PJSIP Client with a private
IP address after NATs. I found when accepting registration from PJSIP Client
, repro just save the Contact header field in the REGISTER packet into
InMemoryRegistrationDatabase, but the ip address in Contact Header field is
private IP address. So when repro receive an INVITE, it locate the callee in
LocationServer monkey and found the private IP address of the callee, then
it proxy the INVITE to the callee with its private IP address, but the
forseeable result is : the INVITE packet cannot reach to the callee. Now i
change the record in InMemoryRegistrationDatabase: call method
sip->getSource() and sip->getSource().getPort() to get the public IP and
port and save them into InMemoryRegistrationDatabase. So repro can
successfully proxy the INVITE to callee. Until now , after some test there
is no problem. But i am so sure. Can somebody show me the possible errors?
Think you!

2. support self-defined header:

the SIP INVITE packet from PJSIP contains a self-defined header: TransType,
the sample SIP packet is following:

INVITE sip:059188244006 at 61.131.80.21:6060 SIP/2.0
Via: SIP/2.0/UDP 191.168.17.32:5080
;rport=1050;branch=z9hG4bKPje9971ef76dbb473ab43b9a5bc4676b5e;received=218.5.1.50
Max-Forwards: 70
Contact: <sip:059188244005 at 191.168.17.32:5080>
To: sip:059188244006 at 61.131.80.21 <sip%3A059188244006 at 61.131.80.21>
From: sip:059188244005 at 61.131.80.21 <sip%3A059188244005 at 61.131.80.21>
;tag=bf1ceb05c3d94c9488ce712b11e86316
Call-ID: 6149f97f89614c9aa66ca5352570f740
CSeq: 1 INVITE
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER,
MESSAGE, OPTIONS
Content-Type: application/sdp
Supported: eventlist
TransType: MSRPRelay
Content-Length: 184
...

and i modify the resip source code to support the h_TransType header field,
but unfortunately i fail. The following is my modification with the source
code:

In the following files:
resip/stack/SipMessage.hxx :
resip/stack/SipMessage.cxx
resip/stack/Headers.hxx
resip/stack/Headers.cxx
resip/stack/HeaderTypes.hxx

i add :

defineHeader(TransType, "TransType", StringCategory, "RFC 3261");

to define the Header TransType.

in file:
resip/stack/HeaderHash.gperf

i add:
transtype, Headers::TransType

in file:
resip/stack/HeaderHash.cxx

i add:
#line 115 "HeaderHash.gperf"
      {"transtype", Headers::TransType},

I think i have done all the things. From the log of repro, i can see the SIP
INVITE packet do contain the TransType header field, But when i call

                if (sip->exists(h_TransType)) {
                    DebugLog( << "the transtype is exist");
                } else {
                    DebugLog( << "the transtype does not exist ...");
                }

in method TransactionState::processClientInvite , the log shows "the
transtype does not exist ...".

Is there anything wrong?  Can somebody help me to solve it? Thinks in
advance!

Best Regards,
xutm
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