Hi,
I am having a problem in pjsip in the "TO" header tag.
In the file "pjsip\src\pjsip\sip_util.c" in the following bit of code:
/* Must add To tag in the response (Section 8.2.6.2), except if this is
* 100 (Trying) response. Same tag must be created for the same request
* (e.g. same tag in provisional and final response). The easiest way
* to do this is to derive the tag from Via branch parameter (or to
* use it directly).
*/
if (st_code > 100 && top_via) {
to_hdr->tag = top_via->branch_param;
}
In section 8.2.6.2 of RFC 3261 it says that the to_hdr->tag of the response
must be the same of the request, if the request contains a to_hdr->tag. Only
if the to_hdr->tag is empty we should provide a new one in the reponse.
Here is how I fixed this:
if (to_hdr->tag.slen == 0 && st_code > 100 && top_via) {
to_hdr->tag = top_via->branch_param;
}
Can anyone confirm if this is the correct interpretation of the RFC 3261?
Cheers,
Rafael Maia
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100809/ebf931ac/attachment.html>
