25 Jun
2017
25 Jun
'17
9:07 p.m.
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### Description
<!--
Explain what you did, what you expected to happen, and what actually happened.
-->
Kamailio incorrectly routed RPACK packets with topos module enabled. In the same time
there is no problem with topoh module enabled.
It's seems like related to #1097,
### Troubleshooting
#### SIP Traffic
<!--
If the issue is exposed by processing specific SIP messages, grab them with ngrep or save
in a pcap file, then add them next, or attach to issue, or provide a link to download them
(e.g., to a pastebin site).
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RPACK SIP packets with Kamailio topos module: http://imgur.com/SScErQp
RPACK SIP packets with Kamailio topoh module: http://imgur.com/45ch3HB
### Possible Solutions
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If you found a solution or workaround for the issue, describe it. Ideally, provide a pull
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### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.1.0-dev4 (x86_64/linux) (git revision 7dbf3fe)
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC,
DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER,
USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024,
BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown
compiled on 00:24:21 Jun 26 2017 with gcc 4.8.5
```
* **Operating System**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04,
CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `uname -a`)
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```
Red Hat Enterprise Linux Server release 7.3 (Maipo)
Linux 2.6.32-042stab113.21 #1 SMP Wed Mar 23 11:05:25 MSK 2016 x86_64 x86_64 x86_64
GNU/Linux
```
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26 Jun
26 Jun
7:47 a.m.
If you do not have parallel forking, then you can try with the patch from #1097. It's
in my todo list to work on the fix for parallel forking, but lack of time lately postpone
it.
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1:47 p.m.
Unfortunately, I can't use #1097 patch because of parallel forking and with incorrect
behaviour with RPACK packets (404 Not here answer) we can't use topos module at all.
So I will wait for your patch and till that will use topoh module instead.
Thanks in advance!
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2:45 p.m.
After all, I assume you mean PRACK, not RPACK.
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3:02 p.m.
Yes, I mean PRACK, my bad.
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12 Jul
12 Jul
7:56 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Although with rather long delay, I started to work on it. First step was to add support
for storing the record-route and contact values in the branch record (topos_t table). Can
you test with latest master branch and see if those fields are set after 180/183? I
didn't have time to do any tests yet by myself. If this part is ok, then I will
continue to implement using them for routing PRACK and other requests during early dialog
state.
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13 Jul
13 Jul
9:12 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hi Daniel.
I have just tested. Please look at screenshot from topos_t table.
http://imgur.com/w4nnyQI
Now PRACK is sending to contact from 183 Progress, but it does not recovers as it must
be.
I think it is record route restore issue.
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19 Jul
19 Jul
1:09 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hi, Daniel.
Do you have any updates regarding this issue?
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20 Jul
20 Jul
5:40 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hello,
is more useful to get the record from database as text instead of a screenshot. You can
use:
```
select * from topos_t\G
```
That will make records with many columns to be printed in more compact form suitable for
pasting here.
Can you also tell the IP addresses for each node in the path of the call?
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21 Jul
21 Jul
1:22 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hi Daniel
This is the output from topos_t
*************************** 29. row ***************************
id: 1145715
rectime: 2017-07-21 08:14:54
s_method: INVITE
s_cseq: 9022
a_callid: uACs6xvwpwRYZyfNDsRi2Z.3Ge809DJK
a_uuid: atpsh-5967680b-2b6d-5
b_uuid: btpsh-5967680b-2b6d-5
direction: 0
x_via: SIP/2.0/TLS
100.65.48.39:48702;received=37.73.197.220;rport=22343;branch=z9hG4bKPjMyQEnMkzRQYL5wQjgt-ih0wGZkrX6TvM;alias
x_vbranch: z9hG4bKbab9.50ac03836b503a91b5269332e0da72fc.0
x_rr:
y_rr:
<sip:127.0.0.8;line=sr-BRwEkMcFYXzjDMqpsSozWseXDMGxppCqzh1Ek2ZS1uoLBVfSPhqYZXlvyga*>,<sip:10.56.42.37:5070;lr;ftag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK;did=243.ca42;vsf=AAAAAAAAAAAAAAAAAABlY2Bmf359HGJ6cX8bc3h9OjUwNjA7dXNlcj1waG9uZQ--;vst=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAgEAAgcAAAABAAAAAAAAAAAAAAAA>
s_rr:
<sip:10.56.42.37;r2=on;lr;ftag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK;did=243.f55;vsf=AAAAAAoLAQ4DAA4DCHlnag5heGJnG3Rnd3MebX14CTUwNjA7dXNlcj1waG9uZQ--;vst=AAAAAAAAAAAAAAAAAAAAAwEcGwMWGgMYAxkIAAM3MDt1c2VyPXBob25l;nat=yes>,<sip:1.2.3.4:5081;transport=tls;r2=on;lr;ftag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK;did=243.f55;vsf=AAAAAAoLAQ4DAA4DCHlnag5heGJnG3Rnd3MebX14CTUwNjA7dXNlcj1waG9uZQ--;vst=AAAAAAAAAAAAAAAAAAAAAwEcGwMWGgMYAxkIAAM3MDt1c2VyPXBob25l;nat=yes>
x_uri:
a_contact:
b_contact:
sip:127.0.0.8;line=sr-BRwEkMcFYXzjDMqpsSozWseXDMGxppCqzh1Ek2ZS1uoLBVfSPhqYZXl*
as_contact:
bs_contact:
x_tag: PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK
a_tag:
b_tag: 04002092200999
a_srcaddr:
b_srcaddr:
a_socket:
b_socket:
*************************** 30. row ***************************
id: 1145716
rectime: 2017-07-21 08:14:59
s_method: PRACK
s_cseq: 9023
a_callid: uACs6xvwpwRYZyfNDsRi2Z.3Ge809DJK
a_uuid: atpsh-5967680b-2b6d-5
b_uuid:
direction: 0
x_via: SIP/2.0/TLS
100.65.48.39:48702;received=37.73.197.220;rport=22343;branch=z9hG4bKPjn0XwMow5-ohClQyJ4wjKHN9WhsEmu6Fr;alias
x_vbranch: z9hG4bKcab9.e4f6045b55f53485a72152348d7218cb.0
x_rr:
y_rr:
<sip:127.0.0.8;line=sr-BRwEkMcFYXzjDMqpsSozWseXDMGxppCqzh1Ek2ZS1uoLBVfSPhqYZXlvyga*>,<sip:10.56.42.37:5070;lr;ftag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK;did=243.ca42;vsf=AAAAAAAAAAAAAAAAAABlY2Bmf359HGJ6cX8bc3h9OjUwNjA7dXNlcj1waG9uZQ--;vst=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAgEAAgcAAAABAAAAAAAAAAAAAAAA>
s_rr:
x_uri:
a_contact:
b_contact:
sip:127.0.0.8;line=sr-BRwEkMcFYXzjDMqpsSozWseXDMGxppCqzh1Ek2ZS1uoLBVfSPhqYZXl*
as_contact:
bs_contact:
x_tag: PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK
a_tag:
b_tag: 04002092200999
a_srcaddr:
b_srcaddr:
a_socket:
b_socket:
Client generates PRACK
PRACK sip:atpsh-5967680b-2b6d-5@1.2.3.4:5081;transport=tls SIP/2.0
Via: SIP/2.0/TLS
100.65.48.39:48702;rport;branch=z9hG4bKPjn0XwMow5-ohClQyJ4wjKHN9WhsEmu6Fr;alias
Max-Forwards: 70
From: <sip:380931701939@1.2.3.4>;tag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK
To: <sip:0938221583@1.2.3.4>;tag=04002092200999
Call-ID: uACs6xvwpwRYZyfNDsRi2Z.3Ge809DJK
CSeq: 9023
PRACK RAck: 500 9022 INVITE
Content-Length: 0
After kamailio with topos:
PRACK
sip:10.56.42.37;r2=on;lr;ftag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK;did=243.f55;vsf=AAAAAAoLAQ4DAA4DCHlnag5heGJnG3Rnd3MebX14CTUwNjA7dXNlcj1waG9uZQ--;vst=AAAAAAAAAAAAAAAAAAAAAwEcGwMWGgMYAxkIAAM3MDt1c2VyPXBob25l;nat=yes
SIP/2.0
Via: SIP/2.0/UDP 10.56.42.37;branch=z9hG4bKcab9.e4f6045b55f53485a72152348d7218cb.0;i=f465
Max-Forwards: 69
From: <sip:380931701939@1.2.3.4>;tag=PxSmzGfYu.lDW-wDENFhyPTkaze9ygCK
To: <sip:0938221583@1.2.3.4>;tag=04002092200999
Call-ID: uACs6xvwpwRYZyfNDsRi2Z.3Ge809DJK
CSeq: 9023 PRACK RAck: 500 9022 INVITE
Content-Length: 0
Contact: <sip:btpsh-5967680b-2b6d-5@10.56.42.37>
ip
1.2.3.4 - external kamailio ip
10.56.42.37 - internal kamailio ip
10.56.42.37:5070 - kamailio2 ip
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31 Jul
31 Jul
5:54 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Daniel, do you have some updates regarding this issue?
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8:36 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hope to get to it in the next few days ... with the summer holidays around, I didn't
get to work that long in a raw at the desk to put a testing scenario in place.
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7 Aug
7 Aug
8:07 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Finally pushed a new patch related to this. Can you test with latest master branch?
If there is something not working properly, to get all needed data and have privacy, send
me directly via email the pcap of such call along with the records from both topos
database tables. Just make a comment here that you emailed those to me, in order to look
for it in inbox. Would be also useful if you can run with debug=3 and email the logs
printed by kamailio.
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9:48 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hi, Daniel.
I just send you requested info with email.
There no record about PRACK in topos_t table now...
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8 Aug
8 Aug
8:26 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Another related patch landed in master, give it another try and on issue, send a report as
before.
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9:49 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
All same
exept in logs
Aug 8 16:47:08 csbc-uat /usr/sbin/kamailio[21308]: DEBUG: db_mysql [km_res.c:168]:
db_mysql_convert_rows(): no rows returned from the query
Aug 8 16:47:08 csbc-uat /usr/sbin/kamailio[21308]: DEBUG: topos [tps_storage.c:898]:
tps_db_load_branch(): no stored record for **INVITE < ~ >**
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11:25 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
So I'm getting close and closer ... another patch pushed, try again ...
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9 Aug
9 Aug
2:32 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hi Daniel.
Pcap, db content and log with level 3 you can find in attach.
PRACK is now generated but to the wrong uri...
Details send to you via email.
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10 Aug
10 Aug
8:36 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Can you add following xlog at thet top of request_route, redo the last test and send again
all the troubleshooting info?
```
xlog("received from $si: [[$mb]]\n");
```
I want to see the requests as constructed by topos after doing the request received
callback. The pcap doesn't capture that.
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9:59 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Send it via email
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11 Aug
11 Aug
3:16 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Test one more with latest branch.
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9:16 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Send result in email.
Better but route headers are restored in wrong order.
and uri for send prack seems got from record-route header...
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14 Aug
14 Aug
7:19 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
The Contact field was not loaded for transaction record and R-URI was not changed,
resulting in doing strict routing instead of loose routing. Can you try again?
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7:36 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Still same, as before.
PRACK is construct incorrect.
uri in PRACK after topos is first record-route part, not contact.
record route restores incorrect to.
Thank you.
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8:52 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
I see log messages that are not in the default source code:
```
Aug 14 14:29:30 csbc-uat /usr/sbin/kamailio[4315]: ERROR: topos [tps_msg.c:766]:
tps_request_received(): sbasov load_branch done
```
Can you test with fresh master branch? Otherwise I cannot correlate logs with source
code.
The Route headers seems to be ok, only the R-URI not recovered, but as I looked again at
code, it should. Just test with latest master again, without any changes from your side.
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9:30 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Sorry, Daniel
It was my fault...
After commit fbf8f68ed1f8df9af7ed60cb14d379e571550a03 PRACK is handled properly.
@slavrov can you make tests with latest master?
Thank you.
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10:16 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
I will make a try and will report in a few days.
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12:45 p.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Closed #1167.
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12:45 p.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
@sergey-vb no worries, thanks for testing troubleshooting!
I am closing it and if there are issues, reopen or open a new issue, as you consider
better.
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7 Nov
7 Nov
9:32 p.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Dear Daniel!
Just compiled kamailio 5.0.4 and still have problem with PRACK packets. I sent SIP dump to
your email. Hope this helps.
Thanks in advance!
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8 Nov
8 Nov
2:18 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
Hi All.
Looks like Daniel forgot to merge some commits to 5.0 branch.
Latest commit to topos module in 5.0 branch is on May 8, 2017
Fixes for correct PRACK processing was committed after that date... Mostly in August.
@slavrov can you compile master branch and perform tests?
For me it works.
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2:44 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
The topos module got major refactoring in the master branch (to have support for other
backends, redis (see topos_redis) being the one added along with the old support for db).
I am not sure these patches can be backported without a consistent work. If someone does
it and makes a pull request for branch 5.0, I will review and merge it. But I do not have
the time at this moment. In few week 5.1 will be out anyhow as a stable release, my
efforts on spare time are directed to make it stable.
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3:40 a.m.
New subject: [kamailio/kamailio] Incorrect routing of PRACK packets with topos module (#1167)
ok thanks for info guys! will wait 5.1 release then.
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2657
days inactive
2792
days old
32 comments
3 participants
participants (3)
-
Daniel-Constantin Mierla -
Sergey Lavrov
-
sergey-vb