<div dir="ltr"><div>Hello, </div><div><br></div><div>Please let me know if there is any work around for this.</div><div><br></div><div>Details of the issue: <br></div><div><br></div><div><br></div><div>kamailio.cfg has this sequence in kamailio.cfg,<br>
</div><div><br></div><div> ......</div><div> modparam("rtpproxy", "ice_candidate_priority_avp", "$avp(ice_priority)" )</div><div> ........</div><div><br></div><div><span style="color:rgb(0,0,0)"> sdp_remove_line_by_prefix("a=candidate");</span><br>
</div><div><span style="color:rgb(0,0,0)"> set_iattr("ice_priority", "1");</span></div><div><span style="color:rgb(0,0,0)"> rtpproxy_manage("frwie");</span></div><div><span style="color:rgb(0,0,0)"><br>
</span></div><div>I'm seeing an issue towards the bottom of the SDP message. <br></div><div><font color="#000000"> </font></div><div><div style="color:rgb(0,0,0)"> ....</div></div><div><font color="#000000"> a=ssrc:738345272 mslabel:VPELrlXvdfGmtevlYLEeVm6zq4JHvI4g</font></div>
<div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=ssrc:738345272 label:VPELrlXvdfGmtevlYLEeVm6zq4JHvI4ga0</font></div><div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=ice-ufrag:YJuJWr9clIJHhENw</font></div>
<div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=ice-pwd:3v1D1ShCg8xIlDZ9</font></div><div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=candidate:1297581420 1 udp 659136 10.1.2.3 17534 typ host generation 0</font></div>
<div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=candidate:1297581420 2 udp 659136 10.1.2.3 17535 typ host generation 0</font></div><div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=ptime:20</font></div>
<div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">\r\n</font></div><div><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(0,0,0)"> </span><font color="#000000">a=nortpproxy:yes\r\n </font></div>
<div><font color="#000000"><br></font></div><div><font color="#000000">The call gets rejected by UA due to an invalid (empty) line in SDP.</font></div><div><br></div><div>Very old but somewhat similar issue: </div><div><a href="http://lists.sip-router.org/pipermail/users/2008-September/019605.html">http://lists.sip-router.org/pipermail/users/2008-September/019605.html</a><br>
</div><div><br></div><div>(Module authors, I'll be happy to code/test or assist in any way possible if needed.) <br></div><div><br></div><div><div><font color="#000000">Just to test it, I commented the following code snippet and the call worked. </font></div>
<div><font color="#000000">But that can't be the permanent fix.</font></div></div><div><font color="#000000"><br></font></div><div><font color="#000000"><br></font></div><div><span style="color:rgb(0,0,0)">Thank you,</span><br>
</div><div><span style="color:rgb(0,0,0)">- Deep N</span></div><div><span style="color:rgb(0,0,0)"><br></span></div><div><span style="color:rgb(0,0,0)"><br></span></div><div><span style="color:rgb(0,0,0)">Code snippet:</span><span style="color:rgb(0,0,0)">rtp_proxy.c::force_rtp_proxy starting from line 2850</span></div>
<div><font color="#000000"><br></font></div><div><font color="#000000"><i><div> if (proxied == 0 && nortpproxy_str.len) {</div><div> cp = pkg_malloc((nortpproxy_str.len + CRLF_LEN) * sizeof(char));</div>
<div> if (cp == NULL) {</div><div> LM_ERR("out of pkg memory\n");</div><div> return -1;</div><div> }</div><div> anchor = anchor_lump(msg, body.s + body.len - msg->buf, 0, 0);</div>
<div> if (anchor == NULL) {</div><div> LM_ERR("anchor_lump failed\n");</div><div> pkg_free(cp);</div><div> return -1;</div><div>
}</div><div> memcpy(cp, CRLF, CRLF_LEN);</div><div> memcpy(cp + CRLF_LEN, nortpproxy_str.s, nortpproxy_str.len);</div><div> if (insert_new_lump_after(anchor, cp, nortpproxy_str.len + CRLF_LEN, 0) == NULL) {</div>
<div> LM_ERR("insert_new_lump_after failed\n");</div><div> pkg_free(cp);</div><div> return -1;</div><div> }</div><div> }</div>
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