[OpenSIPS-Users] incorrect content length in body part

Wed Feb 26 09:28:38 EST 2020

Hello,

version: opensips 2.4.6 (x86_64/linux)

flags: STATS: On, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC, F_MALLOC,
FAST_LOCK-ADAPTIVE_WAIT

ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
MAX_URI_SIZE 1024, BUF_SIZE 65535

poll method support: poll, epoll, sigio_rt, select.

git revision: edef893c5

main.c compiled on 23:26:34 Dec 14 2019 with gcc 4.8.5

We want to remove the body part in this packet so that we used
remove_body_part("application/vnd.etsi.pstn+xml") exported functions. It
was removed successfully but the Content-Length was added. You can check we
have two Content-Length headers in the packet.

Content-Length: 500

Content-Length: 450

INVITE sip:+xxx1204037xxx at sip.provider.com SIP/2.0
Via: SIP/2.0/UDP
10.xxx.xxx.xxx:5060;branch=z9hG4bKysgyg576px7a357p5wyg4vawu;Role=3;Hpt=8ec2_36;TRC=ffffffff-ffffffff
Call-ID: asbcehs9ekj9nle5h5q1ilqj5qs9f49ef9hb at B.5.281.sip.provider.com
From: <sip:123456789 at sip.provider.com>;tag=8fe9f6cr
To: <tel:xxx1204037xxx;phone-context=+x11x>
CSeq: 1 INVITE
Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,UPDATE,MESSAGE,REFER
Contact:
<sip:10.xxx.xxx.xxx:5060;Dpt=ed2a-200;Hpt=8ec2_16;CxtId=4;TRC=ffffffff-ffffffff>
Max-Forwards: 62
Supported: timer,100rel
User-Agent: SBC UAC3000
Session-Expires: 1800
Min-SE: 600
P-Asserted-Identity: <sip:+123456789 at sip.provider.com>,<tel:+123456789>
Privacy: none
P-Charging-Vector:
icid-value=agcf--20200226132711-100808435;orig-ioi=PA-NOIDAE;term-ioi=SIP_982312_ABCCLOUD_112233445566
Content-Length: 1400
Content-Type: multipart/mixed;boundary=ssboundary-1_

--ssboundary-1_
Content-Length: 523
Content-Type: application/vnd.etsi.pstn+xml
Content-Disposition: signal;handling=optional

<?xml version="1.0" encoding="UTF-8"?>
<PSTN>
  <BearerCapability>
    <BCoctet3>
      <CodingStandard>00</CodingStandard>
      <InformationTransferCapability>00000</InformationTransferCapability>
    </BCoctet3>
    <BCoctet4>
      <TransferMode>00</TransferMode>
      <InformationTransferRate>10000</InformationTransferRate>
    </BCoctet4>
    <BCoctet5>
      <Layer1Identification>01</Layer1Identification>
      <UserInfoLayer1Protocol>00011</UserInfoLayer1Protocol>
    </BCoctet5>
  </BearerCapability>
</PSTN>
--ssboundary-1_

Content-Length: 68
Content-Type: application/vnd.etsi.pstn+xml
Content-Disposition: signal;handling=optional

<?xml version="1.0" encoding="UTF-8"?>
<sendingCompleteIndication/>

--ssboundary-1_
Content-Length: 450
Content-Type: application/sdp

v=0
o=- 373803451 373803451 IN IP4 10.xxx.xxx.xxx
s=SBC call
c=IN IP4 10.xxx.xxx.xxx
t=0 0
m=audio 60992 RTP/AVP 8 0 18 4 2 98 99 101 102 97
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=rtpmap:4 G723/8000
a=rtpmap:2 G726-32/8000
a=rtpmap:98 G726-40/8000
a=rtpmap:99 G726-32/8000
a=rtpmap:101 G726-24/8000
a=rtpmap:102 G726-16/8000
a=rtpmap:97 telephone-event/8000
a=ptime:20
a=fmtp:97 0-15
a=fmtp:18 annexb=no

--ssboundary-1_--

------------------- AFTER ----------------------

INVITE sip:101 at 5.xxx.xxx.xxx:54251;transport=UDP;rinstance=5b70c35c0dfbe4c8
SIP/2.0
Record-Route: <sip:xx.xx.xx.xx:5070;r2=on;lr;ftag=8fe9f6cr;did=2af.57bfa951>
Record-Route:
<sip:yy.yy.yy.yyy:5070;r2=on;lr;ftag=8fe9f6cr;did=2af.57bfa951>
Via: SIP/2.0/UDP xx.xx.xx.xx:5070;branch=z9hG4bK9df.30fa2b25.0
Via: SIP/2.0/UDP
10.xxx.xxx.xxx:5060;rport=5060;received=10.xxx.xxx.xxx;branch=z9hG4bKysgyg576px7a357p5wyg4vawu;Role=3;Hpt=8ec2_36;TRC=ffffffff-f
fffff
Call-ID: asbcehs9ekj9nle5h5q1ilqj5qs9f49ef9hb at B.5.281.sip.provider.com
From: <sip:123456789 at sip.provider.com>;tag=8fe9f6cr
To: <sip:101 at 5.xxx.xxx.xxx>
CSeq: 1 INVITE
Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,REGISTER,INFO,PRACK,SUBSCRIBE,NOTIFY,UPDATE,MESSAGE,REFER
Contact:
<sip:10.xxx.xxx.xxx:5060;Dpt=ed2a-200;Hpt=8ec2_16;CxtId=4;TRC=ffffffff-ffffffff>
Max-Forwards: 32
Supported: timer,100rel
User-Agent: SBC UAC3000
Session-Expires: 1800
Min-SE: 600
P-Asserted-Identity: <sip:+123456789 at sip.provider.com>,<tel:+123456789>
Privacy: none
P-Charging-Vector:
icid-value=agcf--20200226132711-100808435;orig-ioi=PA-NOIDAE;term-ioi=SIP_982312_ABCCLOUD_112233445566
Content-Length: 500
Content-Length: 450
Content-Type: application/sdp

v=0
o=- 373803451 373803451 IN IP4 10.xxx.xxx.xxx
s=SBC call
c=IN IP4 xx.xx.xx.xx
t=0 0
a=rtpengine:087d0852c64e
m=audio 11054 RTP/AVP 8 0 18 4 2 98 99 101 102 97
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=rtpmap:4 G723/8000
a=rtpmap:2 G726-32/8000
a=rtpmap:98 G726-40/8000
a=rtpmap:99 G726-32/8000
a=rtpmap:101 G726-24/8000
a=rtpmap:102 G726-16/8000
a=rtpmap:97 telephone-event/8000
a=fmtp:18 annexb=no
a=fmtp:97 0-15
a=sendrecv
a=rtcp:11055
a=ptime:20

Regards,
Kamlesh

-- 

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