Commit Graph

8294 Commits

Author SHA1 Message Date
zuul
0d6c99e715 Merge "cli: Fix various CLI documentation and completion issues" into 13 2017-02-14 14:16:26 -06:00
zuul
6958241b3f Merge "core: Cleanup some channel snapshot staging anomalies." into 13 2017-02-13 10:05:02 -06:00
Sean Bright
ea8a610776 cli: Fix various CLI documentation and completion issues
* app_minivm: Use built-in completion facilities to complete optional
arguments.

* app_voicemail: Use built-in completion facilities to complete
optional arguments.

* app_confbridge: Add missing colons after 'Usage' text.

* chan_alsa: Use built-in completion facilities to complete optional
arguments.

* chan_sip: Use built-in completion facilities to complete optional
arguments. Add completions for 'load' for 'sip show user', 'sip show
peer', and 'sip qualify peer.'

* chan_skinny: Correct and extend completions for 'skinny reset' and
'skinny show line.'

* func_odbc: Correct completions for 'odbc read' and 'odbc write'

* main/asterisk: Correct and extend completions for 'core show file
version.'

* main/astmm: Use built-in completion facilities to complete arguments
for 'memory' commands.

* main/bridge: Correct completions for 'bridge kick.'

* main/ccss: Use built-in completion facilities to complete arguments
for 'cc cancel' command.

* main/cli: Add 'all' completion for 'channel request hangup.' Correct
completions for 'core set debug channel.' Correct completions for 'core
show calls.'

* main/pbx_app: Remove redundant completions for 'core show
applications.'

* main/pbx_hangup_handler: Remove unused completions for 'core show
hanguphandlers all.'

* res_sorcery_memory_cache: Add completion for 'reload' argument of
'sorcery memory cache stale' and properly implement.

Change-Id: Iee58c7392f6fec34ad9d596109117af87697bbca
2017-02-13 10:57:16 -05:00
zuul
c38cd504ad Merge "chan_pjsip: Multidomain endpoint finding on call" into 13 2017-02-13 09:37:21 -06:00
Norbert Varga
17030100ca chan_pjsip: Multidomain endpoint finding on call
When PJSIP tries to call an endpoint with a domain (e.g. 1000@test.com),
the user part is stripped down as it would be a trunk with a specified user,
and only the host part is called as a PJSIP endpoint and can't be found.
This is not correct in the case of a multidomain SIP account, so the stripping
after the @ sign is done only if the whole endpoint (in multidomain case
1000@test.com) can't be found.

ASTERISK-26248

Change-Id: I3a2dd6f57f3bd042df46b961eccd81d31ab202e6
2017-02-13 12:05:07 +00:00
Richard Mudgett
2817f87d27 core: Cleanup some channel snapshot staging anomalies.
We shouldn't unlock the channel after starting a snapshot staging because
another thread may interfere and do its own snapshot staging.

* app_dial.c:dial_exec_full() made hold the channel lock while setting up
the outgoing channel staging.  Made hold the channel lock after the called
party answers while updating the caller channel staging.

* chan_sip.c:sip_new() completed the channel staging on off-nominal exit.
Also we need to use ast_hangup() instead of ast_channel_unref() at that
location.

* channel.c:__ast_channel_alloc_ap() added a comment about not needing to
complete the channel snapshot staging on off-nominal exit paths.

* rtp_engine.c:ast_rtp_instance_set_stats_vars() made hold the channel
locks while staging the channels for the stats channel variables.

Change-Id: Iefb6336893163f6447bad65568722ad5d5d8212a
2017-02-10 11:58:59 -06:00
zuul
484e8ed5e3 Merge "debug_utilities: Add ast_logescalator" into 13 2017-01-27 17:49:43 -06:00
George Joseph
456bc3c704 debug_utilities: Add ast_logescalator
The escalator works by creating a set of startup commands in cli.conf
that set up logger channels and issue the debug commands for the
subsystems specified.  If asterisk is running when it is executed,
the same commands will be issued to the running instance.  The original
cli.conf is saved before any changes are made and can be restored by
executing '$prog --reset'.

The log output will be stored in...
$astlogdir/message.$uniqueid
$astlogdir/debug.$uniqueid
$astlogdir/dtmf.$uniqueid
$astlogdir/fax.$uniqueid
$astlogdir/security.$uniqueid
$astlogdir/pjsip_history.$uniqueid
$astlogdir/sip_history.$uniqueid

Some minor tweaks were made to chan_sip, and res_pjsip_history
so their history output could be send to a log channel as packets
are captured.

A minor tweak was also made to manager so events are output to verbose
when "manager set debug on" is issued.

Change-Id: I799f8e5013b86dc5282961b27383d134bf09e543
2017-01-27 15:09:21 -06:00
Richard Mudgett
ab7a9fc5b2 chan_oss.c: Fix format ref leak in oss_read().
Change-Id: I0a5d56c7dcf327d60f86a4c25a23571733709fd0
2017-01-24 13:38:32 -06:00
Joshua Colp
d30bef1de9 Merge "chan_sip: Remember SDP negotiation on SIP_CODEC_INBOUND." into 13 2017-01-09 08:46:32 -06:00
Joshua Colp
fdfa805552 Merge changes from topic 'ASTERISK-26672' into 13
* changes:
  res_rtp_asterisk.c: Fix uninitialized memory crash.
  chan_rtp.c: Fix uninitialized memory crash.
2017-01-09 07:22:18 -06:00
Alexander Traud
367128e70b chan_sip: Remember SDP negotiation on SIP_CODEC_INBOUND.
After a SIP_CODEC_INBOUND in the dialplan, do not continue with cached formats
but remember the joint format. Cached formats contain default parameters,
often create an empty fmtp line. However, a joint format might have passed
format_get_joint(.) in a res_format_attr_* module (like Opus Codec) and
contain the resulting format parameters from a SDP negotiation.

ASTERISK-26691 #close

Change-Id: I35712d98a793d4c3efdd156cec57deab9014b1dc
2017-01-04 06:02:27 -06:00
Joshua Colp
34e728cfb9 chan_pjsip: Use session for retrieving CHANNEL() information.
The CHANNEL() dialplan function implementation for PJSIP allows
querying of PJSIP specific information. This used the channel
passed in to get the PJSIP session and associated information.
It is possible for this channel to be masqueraded and end
up as a different channel type by the time the information
request is actually acted upon.

This change retrieves the PJSIP session safely and accesses
data from it (including channel). This provides a guarantee
that the session and channel will not be altered when the
request is being acted upon.

ASTERISK-26673

Change-Id: I335e12b89e1820cafdd92b3e7526b8ba649eb7e6
2017-01-03 11:46:25 +00:00
Richard Mudgett
0aa5db4b38 chan_rtp.c: Fix uninitialized memory crash.
unicast_rtp_request() could pass an uninitialized 'us' parameter to
ast_ouraddrfor().  If ast_ouraddrfor() returns an error then the 'us'
parameter may not get initialized.  Thus when the code tries to save the
'us' parameter to the local address we could try to copy a ridiculous
sized memory buffer and segfault.

* Made pass an initialized 'us' parameter to ast_ouraddrfor() and abort
the UnicastRTP channel request if it fails.

ASTERISK-26672

Change-Id: I1ef7a7c09f4da4f15dcb6de660d2bcac5f2a95c0
2016-12-22 12:16:20 -06:00
Joshua Colp
2b675ce122 Merge "chan_dahdi.c: Fix bounds check regression." into 13 2016-12-19 18:27:48 -06:00
Corey Farrell
493849dcd7 chan_sip: Reorder unload_module to deal with stuck TCP threads.
In some situations TCP threads may become frozen.  This creates the
possibility that Asterisk could segfault if they become unfrozen after
chan_sip has been dlclose'd.  This reorders the unload_module process to
allow abort if threads do not exit within 5 seconds.

High level order as follows:
1) Unregister from the core to stop new requests.
2) Signal threads to stop
3) Clear config based tables (but do not free the table itself).
4) Verify that threads have shutdown, cancel unload if not.
5) Clean all remaining resources.

ASTERISK-26586

Change-Id: Ie23692041d838fbd35ece61868f4c640960ff882
2016-12-17 11:32:14 -05:00
Richard Mudgett
4b285d226d chan_dahdi.c: Fix bounds check regression.
Caused by ASTERISK-25494

Change-Id: I1fc408c1a083745ff59da5c4113041bbfce54bcb
2016-12-14 14:22:56 -06:00
Joshua Colp
791c15942b Merge "Fix typo in chan_sip" into 13 2016-12-09 05:33:16 -06:00
Joshua Colp
c7eb439953 Merge "chan_sip: Delete unneeded check" into 13 2016-12-09 05:32:09 -06:00
Badalyan Vyacheslav
22820e10fe chan_sip: Delete unneeded check
P is always true. We check it before

Change-Id: Iee61cda002a9f61aee26b9f66c5f9b59e3389efb
2016-12-08 16:55:51 -06:00
Badalyan Vyacheslav
6aa2c5e5f9 Small code cleanup in chan_sip
The conditional expressions of the 'if' operators situated
alongside each other are identical.

Change-Id: I2cf7c317b106ec14440c7f1b5dcfbf03639f748a
2016-12-08 16:54:47 -06:00
Badalyan Vyacheslav
b596fac838 Fix typo in chan_sip
The conditional expressions of the 'if' operators
situated alongside each other are identical.

Change-Id: I652b6dcddb3be007e669a6aa8107edb31a1ddafb
2016-12-08 16:54:06 -06:00
Walter Doekes
41c6319c4e chan_sip: Do not allow non-SP/HTAB between header key and colon.
RFC says SIP headers look like:

    HCOLON  =  *( SP / HTAB ) ":" SWS
    SWS     =  [LWS]                    ; sep whitespace
    LWS     =  [*WSP CRLF] 1*WSP        ; linear whitespace
    WSP     =  SP / HTAB                ; from rfc2234

chan_sip implemented this:

    HCOLON  =  *( LOWCTL / SP ) ":" SWS
    LOWCTL  = %x00-1F                   ; CTL without DEL

This discrepancy meant that SIP proxies in front of Asterisk with
chan_sip could pass on unknown headers with \x00-\x1F in them, which
would be treated by Asterisk as a different (known) header.  For
example, the "To\x01:" header would gladly be forwarded by some proxies
as irrelevant, but chan_sip would treat it as the relevant "To:" header.

Those relying on a SIP proxy to scrub certain headers could mistakenly
get unexpected and unvalidated data fed to Asterisk.

This change fixes so chan_sip only considers SP/HTAB as valid tokens
before the colon, making it agree on the headers with other speakers of
SIP.

ASTERISK-26433 #close
AST-2016-009

Change-Id: I78086fbc524ac733b8f7f78cb423c91075fd489b
2016-12-08 08:18:28 -06:00
Joshua Colp
fdf0a2afb0 Merge "res_pjsip/chan_sip: Advertise 'ws' in the SIP URI transport parameter" into 13 2016-12-02 11:30:09 -06:00
zuul
eec82c6221 Merge "chan_pjsip: fix switching sending codec when asymmetric_rtp_codec=no" into 13 2016-11-30 10:48:13 -06:00
Matt Jordan
09c36a6535 res_pjsip/chan_sip: Advertise 'ws' in the SIP URI transport parameter
Per RFC 7118 5.2, the SIP URI 'transport' parameter should advertise
'ws' when WebSockets are to be used as the transport. This applies to
both secure and insecure WebSockets.

There were two bugs in Asterisk with respect to this:

(1) The most egregious occurs in res_pjsip. There, we advertise 'ws' for
    insecure websockets and 'wss' for secure websockets. While this
    would seem to make sense - since 'WS' and 'WSS' are used for the Via
    Transport parameter - this is not the case for the SIP URI. This
    patch corrects that by registering the secure websockets with
    pjproject using the shorthand 'WS', and by returning 'ws' when asked
    for the transport parameter. Note that in pjproject, it is perfectly
    valid to have multiple transports use the same shorthand.

(2) In chan_sip, we return an upper-case version of the transport 'WS'
    instead of 'ws'. Since we should be strict in what we send and
    liberal in what we accept (within reason), this patch lower-cases
    the transport before appending it to the parameter.

ASTERISK-24330 #close
Reported by: cervajs, Inaki Baz Castillo

Change-Id: Iff77b645f8cc3b7cd35168a6676c26b147f22f42
2016-11-28 13:36:17 -06:00
Michael Kuron
0cc8351484 chan_sip: Fix segfault during module unload
If a TCP/TLS connection was pending (not accepted and not timed out) during
unload of chan_sip, Asterisk would segfault when trying to send a signal to
a thread whose thread ID hadn't been recorded yet. This commit fixes that by
recording the thread ID before calling the blocking connect() syscall.
This was a regression introduced by 776a14386a.

The above wasn't enough to fix the segfault, which was now delayed to the
point where connect() timed out. Therefore, it was necessary to also remove
the SA_RESTART flag from the SIGURG sigaction so that pthread_kill() could be
used to interruput the connect() syscall.
This was a regression introduced by 5d313f51b9.

ASTERISK-26586 #close

Change-Id: I76fd9d47d56e4264e2629bce8ec15fecba673e7b
2016-11-26 18:16:54 +01:00
Alexei Gradinari
cf6d13180e chan_pjsip: fix switching sending codec when asymmetric_rtp_codec=no
The sending codec is switched to the receiving codec and then
is switched back to the best native codec on EVERY receiving RTP packets.
This is because after call of ast_channel_set_rawwriteformat there is call
of ast_set_write_format which calls set_format which sets rawwriteformat
to the best native format.

This patch adds a new function ast_set_write_format_path which set
specific write path on channel and uses this function to switch
the sending codec.

ASTERISK-26603 #close

Change-Id: I5b7d098f8b254ce8f45546e6c36e5d324737f71d
2016-11-16 10:14:52 -05:00
Igor Goncharovskiy
3faca1d4ff Fix closing rtp ports after call finished in chan_unistim.
Fix ASTERISK-26565 by adding ast_rtp_instance_stop before
rtp instance destroy for chan_unistim. Also several fixes
for displayed text translation.

Change-Id: If42a03eea09bd1633471406bdc829cf98bf6affc
2016-11-11 23:02:11 -05:00
Kevin Harwell
cb30963d22 Revert "chan_sip: Fix lastrtprx always updated"
This reverts commit 93332cb1d0.

Unfortunately, the aforementioned commit caused a regression (incoming calls
would eventually disconnect). Thus it is being removed.

ASTERISK-26523 #close
ASTERISK-25270

Change-Id: Ibf5586adc303073a8eac667a4cbfdb6be184a64d
2016-11-04 10:59:38 -05:00
Sebastian Gutierrez
714412f6c4 chan_sip: add missing account code
Added missing account to AMI event of sip show peers

ASTERISK-26176 #close

Change-Id: Ieb6c2c80a838a1b59c82103eba4c63ba238dc482
2016-11-02 10:42:57 -05:00
Grachev Sergey
b3f10b7b94 chan_sip: Incorrect display option Outbound reg. retry 403
If in sip.conf (general section) set option register_retry_403=no,
the command "sip show settings" return value:
Outbound reg. retry 403:0
If in sip.conf (general section) set option register_retry_403=yes,
the command "sip show settings" return value:
Outbound reg. retry 403:-1

* In static char "sip show settings" for "Outbound.reg. retry 403"
option use AST_CLI_YESNO

ASTERISK-26476 #close

Change-Id: I3c14272f05f1067bd2aeaa8b3ef9cf8fcb12dcf9
2016-11-01 11:14:06 -04:00
Joshua Colp
e8a3af2629 Merge "pjsip: Fix a few media bugs with reinvites and asymmetric payloads." into 13 2016-10-27 16:51:33 -05:00
Joshua Colp
dc13003dd9 Merge "chan_pjsip: segfault on already disconnected session" into 13 2016-10-26 09:14:39 -05:00
Joshua Colp
e0bc17edff pjsip: Fix a few media bugs with reinvites and asymmetric payloads.
When channel format changes occurred as a result of an RTP
re-negotiation the bridge was not informed this had happened.
As a result the bridge technology was not re-evaluated and the
channel may have been in a bridge technology that was incompatible
with its formats. The bridge is now unbridged and the technology
re-evaluated when this occurs.

The chan_pjsip module also allowed asymmetric codecs for sending
and receiving. This did not work with all devices and caused one
way audio problems. The default has been changed to NOT do this
but to match the sending codec to the receiving codec. For users
who want asymmetric codecs an option has been added, asymmetric_rtp_codec,
which will return chan_pjsip to the previous behavior.

The codecs returned by the chan_pjsip module when queried by
the bridge_native_rtp module were also not reflective of the
actual negotiated codecs. The nativeformats are now returned as
they reflect the actual negotiated codecs.

ASTERISK-26423 #close

Change-Id: I6ec88c6e3912f52c334f1a26983ccb8f267020dc
2016-10-26 12:47:59 +00:00
zuul
ad2dde8106 Merge "chan_sip: Support nat=auto_comedia or nat=force_rport,auto_comedia." into 13 2016-10-19 10:57:01 -05:00
zuul
0384bae66f Merge "chan_rtp: Set a sane default rtp engine for unicast." into 13 2016-10-18 12:24:53 -05:00
Alexei Gradinari
6d462b9eaf chan_pjsip: segfault on already disconnected session
On heavy loaded system the TCP/TLS incoming calls could be
disconnected by pjproject while these calls are being
processed by asterisk.

This patch uses functions pjsip_inv_add_ref/pjsip_inv_dec_ref
to inform pjproject that an INVITE session is in use.

ASTERISK-26482 #close

Change-Id: Ia2e3e2f75358cdb530252a9ce158af3d5d9fdf33
2016-10-18 10:04:54 -04:00
Moises Silva
644fad7477 chan_rtp: Set a sane default rtp engine for unicast.
ASTERISK-26439

Change-Id: I7f5ee2eeba8906e9ecb3293dbe3a747770bb5011
2016-10-17 08:13:57 -05:00
Michael Kuron
f1fd873df0 chan_sip: Only send video on outgoing channel if incoming channel supports it
Previously, the settings videosupport=always and videosupport=yes behaved
identically and unconditionally caused a video offer to be sent in the SDP on
an outgoing call. This was a regression introduced with commit
5a1d90e1fb in Asterisk 1.6.1.

This commit restores correct behavior: videosupport=always causes a video offer
to be sent unconditionally, while videosupport=yes will only offer video on an
outbound channel if the incoming channel it is bridged to also supports video.
That way, the device receiving the outgoing call can display the correct user
interface elements for audio or video and will not unnecessarily show a blank
video window on an audio-only call.

ASTERISK-17470 #close

Change-Id: I782f4409d436114dbc97061c3570c0cd24f7c3ae
2016-10-15 12:17:12 +02:00
Alexander Traud
a859bcb49c chan_sip: Support nat=auto_comedia or nat=force_rport,auto_comedia.
In the SIP channel driver chan_sip, auto_comedia was expected to be used in
tandem with auto_force_rport. Or stated differently: Only when auto_force_rport
was chosen (the default), auto_comedia worked. This change allows auto_comedia
to be set independently of the state of (auto_)force_rport. For example,
nat=force_rport,auto_comedia is useful for IPv4/IPv6 Dual Stack deployments
when IPv6 clients are behind a Firewall.

ASTERISK-26457 #close

Change-Id: Ib29d66c6dbb61648e371e01fc36c6978ddae5bc2
2016-10-11 07:08:49 -05:00
Alexander Traud
f166681c12 chan_sip: Honor support of Symmetric Response (rport) for SIP requests.
In the SIP channel driver chan_sip, the default is "auto_force_rport". When no
NAT was detected, for example in case of IPv6, Asterisk uses the IP address
from the headers within the SIP-REGISTER for subsequent SIP signaling. When
the remote party specifies support for Symmetric Response (RFC 3581) via the
parameter "rport", Asterisk should not extract the port from the SIP headers
but reuse the port of the transport. This did not happen because of a typo.

ASTERISK-26438 #close

Change-Id: If6e7891848aaf96666dee5305695f7c6667cd5a6
2016-10-05 04:35:23 -05:00
zuul
1497e29c4f Merge "chan_sip: Resolve externhost not to IPv6; instead go for IPv4." into 13 2016-09-27 13:34:16 -05:00
zuul
9b0e6f9c86 Merge "channels/chan_pjsip: fix HANGUPCAUSE function bug." into 13 2016-09-23 18:06:43 -05:00
Aaron An
a0a17a8c6f channels/chan_pjsip: fix HANGUPCAUSE function bug.
HANGUPCAUSE not return 'SIP 200 Ok' when dialed channel answered.
This patch change the call order of ast_queue_control_data
and ast_queue_control in chan_pjsip_incoming_response.

ASTERISK-26396 #close
Reported by: AaronAn
Tested by: AaronAn

Change-Id: Ide2d31723d8d425961e985de7de625694580be61
2016-09-23 14:11:05 -05:00
Alexander Traud
0502675e5c chan_sip: Resolve externhost not to IPv6; instead go for IPv4.
For the channel driver chan_sip, you specify externhost=example.com in sip.conf
when your Asterisk is behind a NAT and your IP address is assigned dynamically.
Or stated differently: You do not have a static IP address to use "externaddr"
directly. This NAT support is quite handy but just about IPv4. Previously,
Asterisk resolved "externhost" to any IP version. When the first DNS answer
resolved to an IPv6, Asterisk sent an IPv6 in SIP/SDP for origin (o=) and
connection (c=). This happened in outgoing SIP-REGISTER and while answering
SIP-INVITE. If the remote peer is IPv4-only, it might not handle o=/c= with an
IPv6. This change makes sure, no IPv6 is resolved anymore for "externhost".

ASTERISK-18232 #close
Reported by: Jacek Kowalski
Tested by: Alexander Traud
patches:
 changes.patch submitted by Alessandro Crespi

Change-Id: If68eedbeff65bd1c1d8a9ed921c02ba464b32dac
2016-09-23 09:59:14 -05:00
George Joseph
0056bcaebd chan_sip: Address runaway when realtime peers subscribe to mailboxes
Users upgrading from asterisk 13.5 to a later version and who use
realtime with peers that have mailboxes were experiencing runaway
situations that manifested as a continuous stream of taskprocessor
congestion errors, memory leaks and an unresponsive chan_sip.

A related issue was that setting rtcachefriends=no NEVER worked in
asterisk 13 (since the move to stasis).  In 13.5 and earlier, when a
peer tried to register, all of the stasis threads would block and
chan_sip would again become unresponsive.  After 13.5, the runaway
would happen.

There were a number of causes...
* mwi_event_cb was (indirectly) calling build_peer even though calls to
  mwi_event_cb are often caused by build_peer.
* In an effort to prevent chan_sip from being unloaded while messages
  were still in flight, destroy_mailboxes was calling
  stasis_unsubscribe_and_join but in some cases waited forever for the
  final message.
* add_peer_mailboxes wasn't properly marking the existing mailboxes
  on a peer as "keep" so build_peer would always delete them all.
* add_peer_mwi_subs was unsubscribing existing mailbox subscriptions
  then just creating them again.

All of this was causing a flood of subscribes and unsubscribes on
multiple threads all for the same peer and mailbox.

Fixes...
* add_peer_mailboxes now marks mailboxes correctly and build_peer only
  deletes the ones that really are no longer needed by the peer.
* add_peer_mwi_subs now only adds subscriptions marked as "new" instead
  of unsubscribing and resubscribing everything.  It also adds the peer
  object's address to the mailbox instead of its name to the subscription
  userdata so mwi_event_cb doesn't have to call build_peer.

With these changes, with rtcachefriends=yes (the most common setting),
there are no leaks, locks, loops or crashes at shutdown.

rtcachefriends=no still causes leaks but at least it doesn't lock, loop
or crash.  Since making rtcachefriends=no work wasnt in scope for this
issue, further work will have to be deferred to a separate patch.

Side fixes...
 * The ast_lock_track structure had a member named "thread" which gdb
   doesn't like since it conflicts with it's "thread" command.  That
   member was renamed to "thread_id".

ASTERISK-25468 #close

Change-Id: I07519ef7f092629e1e844f855abd279d6475cdd0
2016-09-23 07:53:10 -05:00
zuul
1ddaa825ec Merge "chan_sip: Fix session timeout on retransmit of non-UDP packets" into 13 2016-09-14 19:21:50 -05:00
Steve Davies
98e42cc662 chan_sip: Fix session timeout on retransmit of non-UDP packets
Change-Id I1cd33453c77c56c8e1394cd60a6f17bb61c1d957 Enable Session-Timers for
SIP over TCP (and TLS) also disables SIP retransmits in chan_sip for non-UDP
connections, allowing the TCP layer to handle the retransmits. Unfortunately,
this caused sessions to be terminated with a retransmit timeout becasue it
stopped at the point of the first retrans call.

This patch waits for the 64*T1 timer to expire instead.

ASTERISK-19968

Change-Id: I844f26801aada10bc94e9bebe6e151f0a8443204
2016-09-13 10:55:43 -05:00
Walter Doekes
da8ba990d1 chan_sip: Allow target refresh (Contact update) on re-INVITE.
Previously, the Contact was stored only on initial INVITE and on any
18X and 200. That meant that after re-INVITEs from *us* the Contact
could get updated, but after re-INVITEs from the *peer*, it did not.

This changeset fixes this inconsistency, properly allowing target
refreshes through re-INVITES (RFC3261, 12.2).

If your strictrtp setting allows it, this change allows you to switch
the source IP of a connected/calling device mid-call with a simple
re-INVITE from the new IP.

ASTERISK-26358 #close

Change-Id: Ibb8512054ab27c8c3d2514022568fde943bf2435
2016-09-12 03:40:54 -05:00