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Re: [Linphone-developers] Failed to parse SDP message. What about more p
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From: |
Gautier Pelloux-Prayer |
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Subject: |
Re: [Linphone-developers] Failed to parse SDP message. What about more permissive mode for parsing SDP? |
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Date: |
Mon, 11 May 2015 10:30:33 +0200 |
Hi,
Actually the issue is that your SDP contains an empty final line which is
invalid according to the SDP RFC so this issue must be fixed in SIP server.
Regards,
Gautier Pelloux-Prayer
Software Engineer @ Belledonne Communications
> On 08 May 2015, at 09:48, address@hidden wrote:
>
> Hello Gautier,
> thank you for commits with more verbose debug of SDP parsing.
> Below is slice from log, there is an error:
> 2015-05-08 10:26:28:824 MESSAGE [org.antlr.runtime.MismatchedTokenException]
> reason [()* loopback of 411:22: ( attribute CR LF )*] at line[18] position[0]
> 2015-05-08 10:26:28:824 MESSAGE [org.antlr.runtime.MismatchedTokenException]
> reason [()* loopback of 411:22: ( attribute CR LF )*] at line[18] position[0]
> If we calculate from beginning of SIP message (from 0), then line 18 is
> o=- 2463225753 2463225753 IN IP4 www.xxx.yyy.zzz
> But if start from the beginning of SDP body, then 18th line is blank line
> after the last SDP line.
> So for real i dont understand exactly, is it bug in belle-sip, or in sip
> server :(
> Below is log with replaced sip server ip…
> Thank you very much for advise.
>
> 2015-05-08 10:26:28:807 MESSAGE channel [0x5e0ba008]: received [1359] new
> bytes from [UDP://www.xxx.yyy.zzz:5060]:
> INVITE sip:address@hidden SIP/2.0
> Record-Route: <sip:www.xxx.yyy.zzz;ftag=41d1cff4d2f1778a5ef353cf916021a4;lr>
> Via: SIP/2.0/UDP
> www.xxx.yyy.zzz;branch=z9hG4bK1a4c.868482563bf80aa7c57b036990adbcf0.0
> Via: SIP/2.0/UDP
> www.xxx.yyy.zzz:5069;branch=z9hG4bKbbd0cf1475a1f797190f1cfdcb57deda;rport=5069
> Max-Forwards: 69
> From: 0845380505259487
> <sip:address@hidden>;tag=41d1cff4d2f1778a5ef353cf916021a4
> To: <sip:address@hidden>
> Call-ID: ZDVhMzI5YThkMDk4Yzk1Mjc4ZmZkZTJkZDIyZjdiZjc.-onnet_1-b2b_1
> CSeq: 200 INVITE
> Contact: Anonymous <sip:address@hidden:5069>
> Expires: 300
> User-Agent: Sippy Softswitch v4.2-PRODUCTION.0.100
> cisco-GUID: 3799553023-1612678695-3521334061-3816748403
> h323-conf-id: 3799553023-1612678695-3521334061-3816748403
> Content-Length: 507
> Content-Type: application/sdp
>
> v=0
> o=- 2463225753 2463225753 IN IP4 www.xxx.yyy.zzz
> s=CounterPath eyeBeam 1.5
> c=IN IP4 www.xxx.yyy.zzz
> t=0 0
> m=audio 45866 RTP/AVP 18 107 0 8 101
> a=alt:1 4 : 14rESjRy H3TTsrT2 192.168.56.1 43948
> a=alt:2 3 : 1AH6wZGG HxkIQYfT 192.168.52.1 43948
> a=alt:3 2 : l5ECiEPE yEZt5L0I 192.168.152.1 43948
> a=alt:4 1 : ZElBV2Kz IYZkbYU3 172.22.252.137 43948
> a=fmtp:18 annexb=yes
> a=fmtp:101 0-15
> a=rtpmap:107 BV32/16000
> a=rtpmap:18 G729/8000
> a=rtpmap:101 telephone-event/8000
> a=sendrecv
> a=direction:active
>
>
> 2015-05-08 10:26:28:818 MESSAGE channel [0x5e0ba008] [852] bytes parsed
> 2015-05-08 10:26:28:818 MESSAGE channel [0x5e0ba008] read [507] bytes of body
> from [www.xxx.yyy.zzz:5060]
> 2015-05-08 10:26:28:820 MESSAGE Changing [server] [INVITE] transaction
> [0x5cfb2dd0], from state [INIT] to [PROCEEDING]
> 2015-05-08 10:26:28:821 MESSAGE channel [0x5e0ba008]: message sent to
> [UDP://www.xxx.yyy.zzz:5060], size: [430] bytes
> SIP/2.0 100 Trying
> Via: SIP/2.0/UDP
> www.xxx.yyy.zzz;branch=z9hG4bK1a4c.868482563bf80aa7c57b036990adbcf0.0
> Via: SIP/2.0/UDP
> www.xxx.yyy.zzz:5069;branch=z9hG4bKbbd0cf1475a1f797190f1cfdcb57deda;rport=5069
> From: "0845380505259487"
> <sip:address@hidden>;tag=41d1cff4d2f1778a5ef353cf916021a4
> To: sip:address@hidden
> Call-ID: ZDVhMzI5YThkMDk4Yzk1Mjc4ZmZkZTJkZDIyZjdiZjc.-onnet_1-b2b_1
> CSeq: 200 INVITE
>
>
> 2015-05-08 10:26:28:821 MESSAGE New server dialog [0x5e7bd430] , local tag
> [], remote tag [41d1cff4d2f1778a5ef353cf916021a4]
> 2015-05-08 10:26:28:821 MESSAGE op [0x5e7c1f70] : set_or_update_dialog()
> current=[0x0] new=[0x5e7bd430]
> 2015-05-08 10:26:28:821 MESSAGE new incoming call from ["0845380505259487"
> <sip:address@hidden>] to [sip:address@hidden
> 2015-05-08 10:26:28:824 MESSAGE [org.antlr.runtime.MismatchedTokenException]
> reason [()* loopback of 411:22: ( attribute CR LF )*] at line[18] position[0]
> 2015-05-08 10:26:28:824 MESSAGE [org.antlr.runtime.MismatchedTokenException]
> reason [()* loopback of 411:22: ( attribute CR LF )*] at line[18] position[0]
> 2015-05-08 10:26:28:825 ERROR session_description parser error for [v=0
> o=- 2463225753 2463225753 IN IP4 www.xxx.yyy.zzz
> s=CounterPath eyeBeam 1.5
> c=IN IP4 www.xxx.yyy.zzz
> t=0 0
> m=audio 45866 RTP/AVP 18 107 0 8 101
> a=alt:1 4 : 14rESjRy H3TTsrT2 192.168.56.1 43948
> a=alt:2 3 : 1AH6wZGG HxkIQYfT 192.168.52.1 43948
> a=alt:3 2 : l5ECiEPE yEZt5L0I 192.168.152.1 43948
> a=alt:4 1 : ZElBV2Kz IYZkbYU3 172.22.252.137 43948
> a=fmtp:18 annexb=yes
> a=fmtp:101 0-15
> a=rtpmap:107 BV32/16000
> a=rtpmap:18 G729/8000
> a=rtpmap:101 telephone-event/8000
> a=sendrecv
> a=direction:active
>
> ]
> 2015-05-08 10:26:28:825 ERROR Failed to parse SDP message.
> 2015-05-08 10:26:28:826 MESSAGE channel [0x5e0ba008]: message sent to
> [UDP://www.xxx.yyy.zzz:5060], size: [531] bytes
> SIP/2.0 488 Not acceptable here
> Via: SIP/2.0/UDP
> www.xxx.yyy.zzz;branch=z9hG4bK1a4c.868482563bf80aa7c57b036990adbcf0.0
> Via: SIP/2.0/UDP
> www.xxx.yyy.zzz:5069;branch=z9hG4bKbbd0cf1475a1f797190f1cfdcb57deda;rport=5069
> From: "0845380505259487"
> <sip:address@hidden>;tag=41d1cff4d2f1778a5ef353cf916021a4
> To: <sip:address@hidden>;tag=LGAxXMr
> Call-ID: ZDVhMzI5YThkMDk4Yzk1Mjc4ZmZkZTJkZDIyZjdiZjc.-onnet_1-b2b_1
> CSeq: 200 INVITE
> User-Agent: LinphoneAndroid/2.4.0 (belle-sip/1.4.1)
> Supported: outbound
>
>
> 2015-05-08 10:26:28:826 MESSAGE Changing [server] [INVITE] transaction
> [0x5cfb2dd0], from state [PROCEEDING] to [COMPLETED]
> 2015-05-08 10:26:28:826 MESSAGE Dialog [0x5e7bd430]: now updated by
> transaction [0x5cfb2dd0].
> 2015-05-08 10:26:28:826 MESSAGE dialog [0x5e7bd430] deleted.
> 2015-05-08 10:26:28:826 MESSAGE channel [0x5e0ba008]: ending recv background
> task with id=[1ed0093e].
> 2015-05-08 10:26:28:828 MESSAGE wake_lock_release(): Android wake lock
> released [ref=0x1ed0093e]
> 2015-05-08 10:26:28:829 MESSAGE Dialog [0x5e7bd430] terminated for op
> [0x5e7c1f70]
>
>
>
>
>
>> On May 7, 2015, at 15:40, Gautier Pelloux-Prayer <address@hidden> wrote:
>>
>> Hi,
>>
>> Indeed we found an issue in belle-sip code so I did some changes. First, you
>> should now have the error position to ease find the root of the error. In
>> your case, you should now see in logs something like:
>>
>> 2015-05-07 14:37:53:107
>> belle-sip-message-[org.antlr.runtime.EarlyExitException] reason [Unexpected
>> token] at line[2] position[12]
>> 2015-05-07 14:37:53:107
>> belle-sip-message-[org.antlr.runtime.EarlyExitException] reason [Unexpected
>> token] at line[2] position[12]
>> 2015-05-07 14:37:53:107 belle-sip-error-session_description parser error for
>> [v=0
>> o=jehan-mac -1831749426 -1831749426 IN IP4 192.168.0.18
>>
>> I think that your issue was in line o=- 2463217870 2463217870 IN IP4
>> xxx.yyy.zzz.www and mainly 2463217870 (session ID) which was misconverted to
>> int.
>>
>> If you want to confirm the fix please try belle-sip revision 82ac36d.
>>
>> Thanks,
>>
>> Gautier Pelloux-Prayer
>> Software Engineer @ Belledonne Communications
>>
>>> On 07 May 2015, at 09:41, address@hidden wrote:
>>>
>>> Hello,
>>> when Sippy SoftSwitch is sending SIP INVITE to linphone (android), it’s
>>> rejected with the reason 'Failed to parse SDP message'.
>>> I found advices for similar issue in this maillist:
>>> rtcp_xr_enabled=0
>>> rtcp_xr_rcvr_rtt_mode=all
>>> rtcp_xr_rcvr_rtt_max_size=10000
>>> rtcp_xr_stat_summary_enabled=0
>>> rtcp_xr_voip_metrics_enabled=0
>>> but it’s not working.
>>>
>>> BTW, here is log:
>>> session_description parser error for [v=0
>>> o=- 2463217870 2463217870 IN IP4 xxx.yyy.zzz.www
>>> s=CounterPath eyeBeam 1.5
>>> c=IN IP4 xxx.yyy.zzz.www
>>> t=0 0
>>> m=audio 31612 RTP/AVP 18 101
>>> a=alt:1 1 : e2br+9PL Eu1qGlQ9 10.211.55.3 8988
>>> a=fmtp:18 annexb=yes
>>> a=fmtp:101 0-15
>>> a=rtpmap:18 G729/8000
>>> a=rtpmap:101 telephone-event/8000
>>> a=sendrecv
>>> a=direction:active
>>> ]
>>> Failed to parse SDP message.
>>>
>>> I suggest the problem is in line
>>> a=alt:1 1 : e2br+9PL Eu1qGlQ9 10.211.55.3 8988
>>> where we have colon with spaces before and after.
>>> Can someone confirm, that the issue is really with that colon?
>>>
>>> Is it possible to make SDP parsing more permissive?
>>>
>>> Thank you.
>>>
>>> —
>>> Regards, Andrii Kupchanko
>>> _______________________________________________
>>> Linphone-developers mailing list
>>> address@hidden
>>> https://lists.nongnu.org/mailman/listinfo/linphone-developers
>>
>
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