1 Aug
2018
1 Aug
'18
10:24 a.m.
### Description
The R-URI is not un-masked/update by Kamailio topos module if the BYE message is received
later than in 3 minutes after dialog begin.
We are using 5.1.4 plus the patch for 302 message on top, but tried also with
topos/topos_redis from master, same result.
### Troubleshooting
for keys like [d:z:atpsh-5b619dee-5ca4-441] topos is using branch timeout value, default
being 3 minutes, so if a BYE message arrives later than branch timeout expiry the records
are deleted and the R-URI is not updated. The new header being Route and P-SR-XUID are
still added as I can see from the debug log, but BYE relayed by kamailio contains improper
R-URI user atpsh-5b619dee-5ca4-441.
I've tested this using automated shorter calls because we don't need to wait 3
minutes to notice that TTL is being set improperly. When checking the debug I noticed
that tps_redis_end_dialog() is called here, despite the BYE was not received yet:
Aug 1 14:59:03 sp1 lb[23716]: DEBUG: topos [tps_msg.c:182]: tps_add_headers(): adding to
headers(1) - [Via: SIP/2.0/UDP
127.0.0.1;branch=z9hG4bK4c5e.5b0c6948caefcd8ffb1d106989768f80.0#015#012]
Aug 1 14:59:03 sp1 lb[23716]: DEBUG: topos [tps_msg.c:182]: tps_add_headers(): adding to
headers(0) - [Contact: <sip:btpsh-5b619dee-5ca4-441@127.0.0.1>#015#012]
Aug 1 14:59:03 sp1 lb[23716]: DEBUG: topos_redis [topos_redis_storage.c:1381]:
tps_redis_end_dialog(): updated on end the dialog record for [d:z:atpsh-5b619dee-5ca4-441]
with argc 6
Aug 1 14:59:03 sp1 lb[23716]: DEBUG: topos_redis [topos_redis_storage.c:1412]:
tps_redis_end_dialog(): expire set on branch record for [d:z:atpsh-5b619dee-5ca4-441] with
argc 3
This matches the EXPIRES command time in the output of redis-cli monitor:
1533128343.178930 [24 127.0.0.1:48634] "HGETALL"
"d:z:atpsh-5b619dee-5ca4-441"
1533128343.180122 [24 127.0.0.1:48634] "HMSET"
"d:z:atpsh-5b619dee-5ca4-441" "rectime" "1533128343"
"iflags" "0"
1533128343.180565 [24 127.0.0.1:48634] "EXPIRE"
"d:z:atpsh-5b619dee-5ca4-441" "180"
Is it expected that tps_redis_end_dialog is called at all, changing the expiry and iflag?
#### Reproduction
Make a call with topos, ndb_redis and topos_redis modules loaded.
In our case, the call traverses the kamailio-lb instance twice, because there is a sems in
between.
#### Debugging Data, log messages, traces
will be provided as an attachment
[dumps.tar.gz](https://github.com/kamailio/kamailio/files/2249809/dumps.tar.…
### Additional Information
version: kamailio 5.1.4 (x86_64/linux)
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 with gcc 6.3.0
* **Operating System**:
Linux sp1 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 GNU/Linux
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