[Users] Can not register to OPENSER

[Bill Zhang]

Anyone knows why I keep getting following error message?

 

Aug  2 13:10:26 localhost openser[30695]: ERROR: extract_body: message body
has length zero

Aug  2 13:10:26 localhost openser[30695]: ERROR: force_rtp_proxy2: can't
extract body from the message

 

 

 

I turn on nathelper,  and saw from the following source code:

 

int extract_body(struct sip_msg *msg, str *body )

{

 

        body->s = get_body(msg);

        if (body->s==0) {

                LOG(L_ERR, "ERROR: extract_body: failed to get the message
body\n");

                goto error;

        }

        body->len = msg->len -(int)(body->s-msg->buf);

        if (body->len==0) {

                LOG(L_ERR, "ERROR: extract_body: message body has length
zero\n");

                goto error;

        }

 

 

Why do we care about the content-length, which normally is 0 for most of the
SIP UAs?   Following is an example SIP UA Registration and you can see
"Content-Length: 0" in the bottom:

 

Session Initiation Protocol

    Request-Line: REGISTER sip:sip.mycompany.com SIP/2.0

        Method: REGISTER

        Resent Packet: True

        Suspected resend of frame: 62339

    Message Header

        Via: SIP/2.0/UDP 192.168.254.6:5062;branch=z9hG4bK0997e90280d2f8e5

        From: "Bill Office Phone"
<sip:8001 at sip.mycompany.com>;tag=ec200436c1169e42

            SIP Display info: "Bill Office Phone" 

            SIP from address: sip:8001 at sip.mycompany.com

            SIP tag: ec200436c1169e42

        To: <sip:8001 at sip.mycompany.com>

            SIP to address: sip:8001 at sip.mycompany.com

        Contact: <sip:8001 at 192.168.254.6:5062>

        Call-ID: 5a2ae3a1b883568f at 192.168.254.6

        CSeq: 20113 REGISTER

        Expires: 120

        User-Agent: ABC 1.0.0.0

        Max-Forwards: 70

        Allow:
INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK,MESSA
GE

        Content-Length: 0

 

Thanks in advance.

Best Regards,
Bill Zhang

 

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