Commit Graph

8649 Commits

Author SHA1 Message Date
Alexander Traud 3f86c95cf5 channels: Fix for Doxygen.
ASTERISK-29762

Change-Id: Ia8811ac12b93ff8c18164699c6fbc604cb0a23f7
2021-11-19 09:09:45 -06:00
Alexander Traud cb043633d4 chan_iax2: Fix for Doxygen.
ASTERISK-29737

Change-Id: I282003cc553989fd5c19ceeac9e478fa4ee06cec
2021-11-18 11:55:31 -06:00
Josh Soref c1b21bee6d channels: Spelling fixes
Correct typos of the following word families:

appease
permanently
overriding
residue
silliness
extension
channels
globally
reference
japanese
group
coordinate
registry
information
inconvenience
attempts
cadence
payloads
presence
provisioning
mimics
behavior
width
natively
syslabel
not owning
unquelch
mostly
constants
interesting
active
unequipped
brodmann
commanding
backlogged
without
bitstream
firmware
maintain
exclusive
practically
structs
appearance
range
retransmission
indication
provisional
associating
always
whether
cyrillic
distinctive
components
reinitialized
initialized
capability
switches
occurring
happened
outbound

ASTERISK-29714

Change-Id: Ife52ee89cd2170b684fa651ca72b1cb911a57339
2021-11-16 05:37:45 -06:00
Naveen Albert 36c5f5e5fa sig_analog: Fix truncated buffer copy
Fixes compiler warning caused by a truncated copy of the ANI2 into a
buffer of size 10. This could prevent the null terminator from being
copied if the copy value exceeds the size of the buffer. This increases
the buffer size to 101 to ensure there is no way for truncation to occur.

ASTERISK-29702 #close

Change-Id: Ief9052212952840fa44de6463b8699fdb3e163d0
2021-11-08 13:14:22 -06:00
Naveen Albert bea08a563b chan_iax2: Allow both secret and outkey at dial time
Historically, the dial syntax for IAX2 has held that
an outkey (used only for RSA authenticated calls)
and a secret (used only for plain text and MD5 authenticated
calls, historically) were mutually exclusive, and thus
the same position in the dial string was used for both
values.

Now that encryption is possible with RSA authentication,
this poses a limitation, since encryption requires a
secret and RSA authentication requires an outkey. Thus,
the dial syntax is extended so that both a secret and
an outkey can be specified.

The new extended syntax is backwards compatible with the
old syntax. However, a secret can now be specified after
the outkey, or the outkey can be specified after the secret.
This makes it possible to spawn an encrypted RSA authenticated
call without a corresponding peer being predefined in iax.conf.

ASTERISK-29707 #close

Change-Id: I1f8149313ed760169d604afbb07720a8b07dd00e
2021-11-08 10:34:04 -06:00
Mike Bradeen 0b2646aee6 various: Fix GCC 11 compilation issues.
test_voicemail_api: Use empty char* for empty_msg_ids.
chan_skinny: Fix size of calledParty to be maximum extension.
menuselect: Change Makefile to stop deprecated warnings. Added comments
test_linkedlist: 'bogus' variable was manually allocated from a macro
and the test fails if this happens but the compiler couldn't 'see' this
and returns a warning. memset to all 0's after allocation.
chan_ooh323: Fixed various indentation issues that triggered misleading
 indentation warnings.

ASTERISK-29682
Reported by: George Joseph

Change-Id: If4fe42222c8444dc16828a42731ee53b4ce5cbbe
2021-10-21 11:39:15 -05:00
Naveen Albert 437b2bfbd6 chan_iax2: Add encryption for RSA authentication
Adds support for encryption to RSA-authenticated
calls. Also prevents crashes if an RSA IAX2 call
is initiated to a switch requiring encryption
but no secret is provided.

ASTERISK-20219

Change-Id: I18f1f9d7c59b4f9cffa00f3b94a4c875846efd40
2021-10-07 18:23:21 -05:00
Naveen Albert 1a23c9c047 res_pjsip_caller_id: Add ANI2/OLI parsing
Adds parsing of ANI II digits (Originating
Line Information) to PJSIP, on par with
what currently exists in chan_sip.

ASTERISK-29472

Change-Id: Ifc938a7a7d45ce33999ebf3656a542226f6d3847
2021-09-15 10:27:29 -05:00
Naveen Albert 5a685249ce chan_iax2: Add ANI2/OLI information element
Adds an information element for ANI2 so that
Originating Line Information can be transmitted
over IAX2 channels.

ASTERISK-29605 #close

Change-Id: Iaeacdf6ccde18eaff7f776a0f49fee87dcb549d2
2021-09-02 14:16:58 -05:00
Sarah Autumn 241686f860 sig_analog: Changes to improve electromechanical signalling compatibility
This changeset is intended to address compatibility issues encountered
when interfacing Asterisk to electromechanical telephone switches that
implement ANI-B, ANI-C, or ANI-D.

In particular the behaviours that this impacts include:

 - FGC-CAMA did not work at all when using MF signaling. Modified the
   switch case block to send calls to the correct part of the
   signaling-handling state machine.

 - For FGC-CAMA operation, the delay between called number ST and
   second wink for ANI spill has been made configurable; previously
   all calls were made to wait for one full second.

 - After the ANI spill, previous behavior was to require a 'ST' tone
   to advance the call.  This has been changed to allow 'STP' 'ST2P'
   or 'ST3P' as well, for compatibility with ANI-D.

 - Store ANI2 (ANI INFO) digits in the CALLERID(ANI2) channel variable.

 - For calls with an ANI failure, No. 1 Crossbar switches will send
   forward a single-digit failure code, with no calling number digits
   and no ST pulse to terminate the spill.  I've made the ANI timeout
   configurable so to reduce dead air time on calls with ANI fail.

 - ANI info digits configurable.  Modern digital switches will send 2
   digits, but ANI-B sends only a single info digit.  This caused the
   ANI reported by Asterisk to be misaligned.

 - Changed a confusing log message to be more informative.

ASTERISK-29518

Change-Id: Ib7e27d987aee4ed9bc3663c57ef413e21b404256
2021-08-20 15:30:55 -05:00
Sean Bright 121860e3f6 mgcp: Remove dead debug code
ASTERISK-20339 #close

Change-Id: I36f364aaa1971241d8f3ea1a5909b463d185a2d5
2021-08-16 12:32:59 -05:00
Joshua C. Colp 13fd0789a2 policy: Add deprecation and removal versions to modules.
app_meetme is deprecated in 19, to be removed in 21.
app_osplookup is deprecated in 19, to be removed in 21.
chan_alsa is deprecated in 19, to be removed in 21.
chan_mgcp is deprecated in 19, to be removed in 21.
chan_skinny is deprecated in 19, to be removed in 21.
res_pktccops is deprecated in 19, to be removed in 21.
cdr_mysql was deprecated in 1.8, to be removed in 19.
app_mysql was deprecated in 1.8, to be removed in 19.
app_ices was deprecated in 16, to be removed in 19.
app_macro was deprecated in 16, to be removed in 21.
app_fax was deprecated in 16, to be removed in 19.
app_url was deprecated in 16, to be removed in 19.
app_image was deprecated in 16, to be removed in 19.
app_nbscat was deprecated in 16, to be removed in 19.
app_dahdiras was deprecated in 16, to be removed in 19.
cdr_syslog was deprecated in 16, to be removed in 19.
chan_oss was deprecated in 16, to be removed in 19.
chan_phone was deprecated in 16, to be removed in 19.
chan_sip was deprecated in 17, to be removed in 21.
chan_nbs was deprecated in 16, to be removed in 19.
chan_misdn was deprecated in 16, to be removed in 19.
chan_vpb was deprecated in 16, to be removed in 19.
res_config_sqlite was deprecated in 16, to be removed in 19.
res_monitor was deprecated in 16, to be removed in 21.
conf2ael was deprecated in 16, to be removed in 19.
muted was deprecated in 16, to be removed in 19.

ASTERISK-29548
ASTERISK-29549
ASTERISK-29550
ASTERISK-29551
ASTERISK-29552
ASTERISK-29553
ASTERISK-29554
ASTERISK-29555
ASTERISK-29557
ASTERISK-29558
ASTERISK-29559
ASTERISK-29560
ASTERISK-29561
ASTERISK-29562
ASTERISK-29563
ASTERISK-29564
ASTERISK-29565
ASTERISK-29566
ASTERISK-29567
ASTERISK-29568
ASTERISK-29569
ASTERISK-29570
ASTERISK-29571
ASTERISK-29572
ASTERISK-29573
ASTERISK-29574

Change-Id: Ic3bee31a10d42c4b3bbc913d893f7b2a28a27131
2021-08-16 11:48:10 -05:00
Kevin Harwell 2a141a58b6 AST-2021-008 - chan_iax2: remote crash on unsupported media format
If chan_iax2 received a packet with an unsupported media format, for
example vp9, then it would set the frame's format to NULL. This could
then result in a crash later when an attempt was made to access the
format.

This patch makes it so chan_iax2 now ignores/drops frames received
with unsupported media format types.

ASTERISK-29392 #close

Change-Id: Ifa869a90dafe33eed8fd9463574fe6f1c0ad3eb1
2021-07-22 16:16:59 -05:00
Naveen Albert 7b82587dd6 chan_sip: Expand hook flash recognition.
Some ATAs send hook flash events as application/hook-flash, rather than a DTMF
event. Now, we also recognize hook-flash as a flash event.

ASTERISK-29370

Change-Id: I1c3b82a040dff3affcd94bad8ce33edc90c04725
2021-05-17 08:55:38 -05:00
Sean Bright 78d7862463 chan_pjsip: Correct misleading trace message
ASTERISK-29358 #close

Change-Id: I050daff67066873df4e8fc7f4bd977c1ca06e647
2021-05-12 22:20:23 -04:00
George Joseph 40bdfff73b Updates for the MessageSend Dialplan App
Enhancements:

 * The MessageSend dialplan application now takes an optional
   third argument that can set the message's "To" field on
   outgoing messages.  It's an alternative to using the
   MESSAGE(to) dialplan function.

   NOTE: No channel driver currently implements this field.  A
   follow-on commit for res_pjsip_messaging will implement it for
   the chan_pjsip channel driver.

 * To prevent confusion with the first argument, currently named
   "to", it's been renamed to "destination". Its function,
   creating the request URI, hasn't changed.

 * The documentation for MessageSend was updated to be
   more clear about the parameters and how they interact
   the MESSAGE() dialplan function.

 * With the rename of MessageSend's first parameter, and the fact
   that message.c references <info> elements in chan_sip.c,
   res_pjsip_messaging.c and res_xmpp, they each needed
   documentation updates to use MessageDestinationInfo instead of
   MessageToInfo.

 * appdocsxml.dtd was updated to include a missing element
   declaration for "dataType".  This was showing up as an error
   in Eclipse's dtd editor.

 * Despite the changes in this commit, there should be
   no impact to current users of MessageSend.

Change-Id: I6fb5b569657a02866a66ea352fd53d30d8ac965a
2021-05-04 08:07:39 -05:00
Joshua C. Colp 60800b038a xml: Embed module information into core XML documentation.
This change embeds the MODULEINFO block of modules
into the core XML documentation. This provides a shared
mechanism for use by both menuselect and Asterisk for
information and a definitive source of truth.

ASTERISK-29335

Change-Id: Ifbfd5c700049cf320a3e45351ac65dd89bc99d90
2021-03-16 10:31:16 -05:00
Alexander Traud 4fc0e16838 chan_iax2: System Header strings is included via asterisk.h/compat.h.
The system header strings was included mistakenly with commit 3de0204.
That header is included via asterisk.h and there via the compat.h.

Change-Id: I3dc49060e275295f785670c87cc65fd3c3abd24a
2021-03-10 04:21:27 -06:00
Holger Hans Peter Freyther 3286c04856 pjsip: Generate progress (once) when receiving a 180 with a SDP
ASTERISK-29105

Change-Id: If1615fe7115fe544ef974b044d3cea5c48b94a38
2021-03-02 11:22:44 -06:00
Alexander Traud 1adf9368ee chan_sip: Filter pass-through audio/video formats away, again.
Instead of looking for pass-through formats in the list of transcodable
formats (which is going to find nothing), go through the result which
is going to be the jointcaps of the tech_pvt of the channel. Finally,
only with that list, ast_format_cap_remove(.) is going to succeed.

This restores the behaviour of Asterisk 1.8. However, it does not fix
ASTERISK_29282 because that issue report is about chan_sip and PJSIP.
Here, only chan_sip is fixed because PJSIP does not even call
ast_rtp_instance_available_formats -> ast_translate_available_format.

Change-Id: Icade2366ac2b82935b95a9981678c987da2e8c34
2021-02-23 12:30:32 -06:00
Alexander Traud 45e48e387c chan_sip: Allow [peer] without audio (text+video).
Two previous commits, 620d9f4 and 6d980de, allow to set up a call
without audio, again. That was introduced originally with commit f04d5fb
but changed and broke over time. The original commit missed one
scenario: A [peer] section in sip.conf, which does not allow audio at
all. In that case, chan_sip rejected the call, although even when the
requester offered no audio. Now, chan_sip does not check whether there
is no audio format but checks whether there is no format in general. In
other words, if there is at least one format to offer, the call succeeds.

However, to prevent calls with no-audio, chan_sip still rejects calls
when both call parties (caller = requester of the call *and* callee =
[peer] section in sip.conf) included audio. In such a case, it is
expected that the call should have audio.

ASTERISK-29280

Change-Id: I0fb74faf51ef22a60c10b467df6a4d1c1943b73e
2021-02-12 07:19:09 -06:00
George Joseph 28f187d6c5 chan_iax2.c: Require secret and auth method if encryption is enabled
If there's no secret specified for an iax2 peer and there's no secret
specified in the dial string, Asterisk will crash if the auth method
requested by the peer is MD5 or plaintext.  You also couldn't specify
a default auth method in the [general] section of iax.conf so if you
don't have static peers defined and just use the dial string, Asterisk
will still crash even if you have a secret specified in the dial string.

* Added logic to iax2_call() and authenticate_reply() to print
  a warning and hanhup the call if encryption is requested and
  there's no secret or auth method.  This prevents the crash.

* Added the ability to specify a default "auth" in the [general]
  section of iax.conf.

ASTERISK-29624
Reported by: N A

Change-Id: I5928e16137581f7d383fcc7fa04ad96c919e6254
2021-02-09 09:15:49 -06:00
Alexander Traud 87ad1138ff chan_sip: Set up calls without audio (text+video), again.
The previous commit 6d980de fixed this issue in the core of Asterisk.
With that, each channel technology can be used without audio
theoretically. Practically, the channel-technology driver chan_sip
turned out to have an invalid check preventing that. chan_sip tested
whether there is at least one audio format. However, chan_sip has to
test whether there is at least one format. More cannot be tested while
requesting chan_sip because only the [general] capabilities but not the
[peer] caps are known yet. And the [peer] caps might not be a subset or
show any intersection with the [general] caps. This change here fixes
this.

The original commit f04d5fb, thirteen years ago, contained a software
bug as it passed ANY audio capability to the channel-technology driver.
Instead, it should have passed NO audio format. Therefore, this
addressed issue here was not noticed in Asterisk 1.6.x and Asterisk 1.8.
Then, Asterisk 10 changed that from ANY to NO, but nobody reported since
then.

ASTERISK-29265

Change-Id: Ic16a3bf13cd1b5c4fc4041ed74961177d96b600f
2021-02-03 03:01:12 -06:00
Dan Cropp 088816284a chan_pjsip, app_transfer: Add TRANSFERSTATUSPROTOCOL variable
When a Transfer/REFER is executed, TRANSFERSTATUSPROTOCOL variable is
0 when no protocl specific error
SIP example of failure, 3xx-6xx for the SIP error code received

This allows applications to perform actions based on the failure
reason.

ASTERISK-29252 #close
Reported-by: Dan Cropp

Change-Id: Ia6a94784b4925628af122409cdd733c9f29abfc4
2021-01-27 11:42:10 -06:00
Alexander Traud 4c154f3431 chan_sip: SDP: Reject audio streams correctly.
This completes the fix for ASTERISK_24543. Only when the call is an
outgoing call, consult and append the configured format capabilities
(p->caps). When all audio formats got rejected the negotiated format
capabilities (p->jointcaps) contain no audio formats for incoming
calls. This is required when there are other accepted media streams.

ASTERISK-29258

Change-Id: I8bab31c7f3f3700dce204b429ad238a524efebb9
2021-01-27 10:42:01 -06:00
Ben Ford 87a35f8e94 chan_pjsip.c: Add parameters to frame in indicate.
There are a couple of parameters (datalen and data) that do not get set
in chan_pjsip_indicate which could cause an Invalid message to pop up
for things such as fax. This patch adds them to the frame.

Change-Id: Ia51be086a0708be905e73d1f433572c49c7e38f8
2021-01-18 10:02:28 -06:00
Ivan Poddubnyi c3fad2fd01 chan_pjsip: Assign SIPDOMAIN after creating a channel
session->channel doesn't exist until chan_pjsip creates it, so intead of
setting a channel variable every new incoming call sets one and the same
global variable.

This patch moves the code to chan_pjsip so that SIPDOMAIN is set on
a newly created channel, it also removes a misleading reference to
channel->session used to fetch call pickup configuraion.

ASTERISK-29240

Change-Id: I90c9bbbed01f5d8863585631a29322ae4e046755
2021-01-13 08:28:30 -06:00
Alexander Traud ad606d4ad1 chan_sip: SDP: Sidestep stream parsing when its media is disabled.
Previously, chan_sip parsed all known media streams in an SDP offer
like video (and text) even when videosupport=no (and textsupport=no).
This wasted processor power. Furthermore, chan_sip accepted SDP offers,
including no audio but just video (or text) streams although
videosupport=no (or textsupport=no). Finally, chan_sip denied the whole
offer instead of individual streams when they had encryption (SDES-sRTP)
unexpectedly enabled.

ASTERISK-29238
ASTERISK-29237
ASTERISK-29222

Change-Id: Ie49e4e2a11f0265f914b684738348ba8c0f89755
2021-01-13 07:42:19 -06:00
Ivan Poddubnyi cc496044db chan_pjsip: Stop queueing control frames twice on outgoing channels
The fix for ASTERISK-27902 made chan_pjsip process SIP responses twice.
This resulted in extra noise in logs (for example, "is making progress"
and "is ringing" get logged twice by app_dial), as well as in noise in
signalling: one incoming 183 Session Progress results in 2 outgoing 183-s.

This change splits the response handler into 2 functions:
 - one for updating HANGUPCAUSE, which is still called twice,
 - another that does the rest, which is called only once as before.

ASTERISK-28016
Reported-by: Alex Hermann

ASTERISK-28549
Reported-by: Gant Liu

ASTERISK-28185
Reported-by: Julien

Change-Id: I0a1874be5bb5ed12d572d17c7f80de6e5e542940
2021-01-11 12:14:51 -06:00
Dan Cropp fb23f98521 chan_pjsip: Incorporate channel reference count into transfer_refer().
Add channel reference count for PJSIP REFER. The call could be terminated
prior to the result of the transfer. In that scenario, when the SUBSCRIBE/NOTIFY
occurred several minutes later, it would attempt to access a session which was
no longer valid.  Terminate event subscription if pjsip_xfer_initiate() or
pjsip_xfer_send_request() fails in transfer_refer().

ASTERISK-29201 #close
Reported-by: Dan Cropp

Change-Id: I3fd92fd14b4e3844d3d7b0f60fe417a4df5f2435
2021-01-06 11:04:05 -06:00
Richard Mudgett 3d379845e6 chan_vpb.cc: Fix compile errors.
Fix the usual compile problem when someone adds a new callback to struct
ast_channel_tech.

Change-Id: I9bdeb8a8cc65f03b2d6e4f2eb5809af47c906c32
2020-12-31 13:13:42 -06:00
Joshua C. Colp 5b4e71fa0a pjsip: Match lifetime of INVITE session to our session.
In some circumstances it was possible for an INVITE
session to be destroyed while we were still using it.
This occurred due to the reference on the INVITE session
being released internally as a result of its state
changing to DISCONNECTED.

This change adds a reference to the INVITE session
which is released when our own session is destroyed,
ensuring that the INVITE session remains valid for
the lifetime of our session.

ASTERISK-29022

Change-Id: I300c6d9005ff0e6efbe1132daefc7e47ca6228c9
2020-12-09 13:06:32 -06:00
Alexander Traud e884d935f6 chan_sip: Remove unused sip_socket->port.
12 years ago, with ASTERISK_12115 the last four get/uses of socket.port
vanished. However, the struct member itself and all seven set/uses
remained as dead code.

ASTERISK-28798

Change-Id: Ib90516a49eca3d724a70191278aaf2144fb58c59
2020-11-19 15:37:11 -06:00
Alexander Traud e0ee53dc9c Compiler fixes for GCC with -Og
ASTERISK-29144

Change-Id: I2a72c072083b4492a223c6f9d73d21f4f424db62
2020-11-03 17:07:42 -06:00
Alexander Traud f86af1fbd0 Compiler fixes for GCC when printf %s is NULL
ASTERISK-29146

Change-Id: Ib04bdad87d729f805f5fc620ef9952f58ea96d41
2020-11-03 15:32:33 -06:00
Alexander Traud 5b25c75d7b chan_sip: On authentication, pick MD5 for sure.
RFC 8760 added new digest-access-authentication schemes. Testing
revealed that chan_sip does not pick MD5 if several schemes are offered
by the User Agent Server (UAS). This change does not implement any of
the new schemes like SHA-256. This change makes sure, MD5 is picked so
UAS with SHA-2 enabled, like the service www.linphone.org/freesip, can
still be used. This should have worked since day one because SIP/2.0
already envisioned several schemes (see RFC 3261 and its augmented BNF
for 'algorithm' which includes 'token' as third alternative; note: if
'algorithm' was not present, MD5 is still assumed even in RFC 7616).

Change-Id: I61ca0b1f74b5ec2b5f3062c2d661cafeaf597fcd
2020-11-03 15:12:57 -06:00
Sean Bright c90c182932 audiosocket: Fix module menuselect descriptions
The module description needs to be on the same line as the
AST_MODULE_INFO or it is not parsed correctly.

Change-Id: I9ba11df1415369790e8656fcb527bb2749373c21
2020-09-22 09:02:10 -05:00
George Joseph ad4f2a8c99 debugging: Add enough to choke a mule
Added to:
 * bridges/bridge_softmix.c
 * channels/chan_pjsip.c
 * include/asterisk/res_pjsip_session.h
 * main/channel.c
 * res/res_pjsip_session.c

There NO functional changes in this commit.

Change-Id: I06af034d1ff3ea1feb56596fd7bd6d7939dfdcc3
2020-09-11 10:41:15 -06:00
Kevin Harwell 31fbfc5e95 chan_pjsip: disallow PJSIP_SEND_SESSION_REFRESH pre-answer execution
This patch makes it so if the PJSIP_SEND_SESSION_REFRESH dialplan function
is called on a channel prior to answering a warning is issued and the
function returns unsuccessful.

ASTERISK-28878 #close

Change-Id: I053f767d10cf3b2b898fa9e3e7c35ff07e23c9bb
2020-08-28 13:10:10 -05:00
Dennis Buteyn 9058d9e591 chan_sip: Clear ToHost property on peer when changing to dynamic host
The ToHost parameter was not cleared when a peer's host value was
changed to dynamic. This causes invites to be sent to the original host.

ASTERISK-29011 #close

Change-Id: I9678d512741f71baca8f131a65b7523020b07d5c
2020-08-18 09:01:44 -05:00
George Joseph 9bd1d686a1 ACN: Add tracing to existing code
Prior to making any modifications to the pjsip infrastructure
for ACN, I've added the tracing functions to the existing code.
This should make the final commit easier to review, but we can also
now run a "before and after" trace.

No functional changes were made with this commit.

Change-Id: Ia83a1a2687ccb96f2bc8a2a3928a5214c4be775c
2020-07-08 09:24:42 -05:00
Kevin Harwell 4eba6b9eb2 PJSIP_MEDIA_OFFER: override configuration on refresh
When using the PSJIP_MEDIA_OFFER dialplan function it was not
overriding an endpoint's configured codecs on refresh unless
they had a shared codec between the two.

This patch makes it so whatever is set using PJSIP_MEDIA_OFFER
is used when creating the SDP for a refresh no matter what.

ASTERISK-28878 #close

Change-Id: I0f7dc86fd0fb607c308e6f98ede303c54d1eacb6
2020-07-06 09:05:41 -05:00
George Joseph 8d1064eaaf Streams: Add features for Advanced Codec Negotiation
The Streams API becomes the home for the core ACN capabilities.
These include...

 * Parsing and formatting of codec negotation preferences.
 * Resolving pending streams and topologies with those configured
   using configured preferences.
 * Utility functions for creating string representations of
   streams, topologies, and negotiation preferences.

For codec negotiation preferences:
 * Added ast_stream_codec_prefs_parse() which takes a string
   representation of codec negotiation preferences, which
   may come from a pjsip endpoint for example, and populates
   a ast_stream_codec_negotiation_prefs structure.
 * Added ast_stream_codec_prefs_to_str() which does the reverse.
 * Added many functions to parse individual parameter name
   and value strings to their respectrive enum values, and the
   reverse.

For streams:
 * Added ast_stream_create_resolved() which takes a "live" stream
   and resolves it with a configured stream and the negotiation
   preferences to create a new stream.
 * Added ast_stream_to_str() which create a string representation
   of a stream suitable for debug or display purposes.

For topology:
 * Added ast_stream_topology_create_resolved() which takes a "live"
   topology and resolves it, stream by stream, with a configured
   topology stream and the negotiation preferences to create a new
   topology.
 * Added ast_stream_topology_to_str() which create a string
   representation of a topology suitable for debug or display
   purposes.
 * Renamed ast_format_caps_from_topology() to
   ast_stream_topology_get_formats() to be more consistent with
   the existing ast_stream_get_formats().

Additional changes:
 * A new function ast_format_cap_append_names() appends the results
   to the ast_str buffer instead of replacing buffer contents.

Change-Id: I2df77dedd0c72c52deb6e329effe057a8e06cd56
2020-07-01 09:27:14 -05:00
Frederic LE FOLL a423f935c9 chan_sip: chan_sip does not process 400 response to an INVITE.
chan_sip handle_response() function, for a 400 response to an INVITE,
calls handle_response_invite() and does not generate ACK.
handle_response_invite() does not recognize 400 response and has no
default response processing for unexpected responses, thus it does not
generate ACK either.
The ACK on response repetition comes from handle_response() mechanism
"We must re-send ACKs to re-transmitted final responses".

According to code history, 400 response specific processing was
introduced with commit
"channels/chan_sip: Add improved support for 4xx error codes"
This commit added support for :
- 400/414/493 in handle_response_subscribe() handle_response_register()
  and handle_response().
- 414/493 only in handle_response_invite().

This fix adds 400 response support in handle_response_invite().

ASTERISK-28957

Change-Id: Ic71a087e5398dfc7273946b9ec6f9a36960218ad
2020-06-25 09:47:08 -05:00
Kevin Harwell 8b925fbda3 chan_pjsip: don't use PJSIP_SC_NULL as it only exists pjproject 2.8+
A patch made a reference to the PJSIP_SC_NULL enumeration value, which
was added to pjproject 2.8 and above thus making it so Asterisk would
fail to compile with prior versions of pjproject.

This patch removes the reference, and instead initializes the value
to '0'.

ASTERISK-28886 #close

Change-Id: I68491c80da1a0154b2286c9458440141c98db9d7
2020-06-22 15:33:04 -05:00
Guido Falsi d88e230037 chan_dadhi: Fix setvar in dahdi channels
The change to how setvar works for various channels performed in
ASTERISK~23756 missed some required change in the dahdi channel,
where the variables are actually set while reading configuration.
This change should fix the issue.

ASTERISK-28955

Change-Id: Ibfeb7f8cbdd735346dc4028de6a265f24f9df274
2020-06-19 09:12:31 -05:00
George Joseph 41f3a7da4d res_fax: Don't start a gateway if either channel is hung up
When fax_gateway_framehook is called and a gateway hasn't already
been started, the framehook gets the t38 state for both the current
channel and the peer.  That call trickles down to the channel
driver which determines the state.  If either channel is hung up
(or in the process of being hung up), the channel driver's tech_pvt
is going to be NULL which, in the case of chan_pjsip, will cause a
segfault.

* Added a hangup check for both the channel and peer channel
  before starting a fax gateway.

* Added a check for NULL tech_pvt to chan_pjsip_queryoption
  so we don't attempt to reference a tech_pvt that's already
  gone.

ASTERISK-28923
Reported by: Yury Kirsanov

Change-Id: I4e10e63b667bbb68c1c8623f977488f5d807897c
2020-06-10 13:59:06 -05:00
Joshua C. Colp 1c5e68580a stream: Enforce formats immutability and ensure formats exist.
Some places in Asterisk did not treat the formats on a stream
as immutable when they are.

The ast_stream_get_formats function is now const to enforce this
and parts of Asterisk have been updated to take this into account.
Some violations of this were also fixed along the way.

An additional minor tweak is that streams are now allocated with
an empty format capabilities structure removing the need in various
places to check that one is present on the stream.

ASTERISK-28846

Change-Id: I32f29715330db4ff48edd6f1f359090458a9bfbe
2020-04-23 09:16:51 -05:00
Alexander Traud 52f07176b6 chan_sip: externhost/externaddr with non-default TCP/TLS ports.
ASTERISK-28372
Reported by: Anton Satskiy

ASTERISK-24428
Reported by: sstream

Change-Id: I2b7432a9bf3b09dc8515297ff955636db7a6224c
2020-04-21 10:20:26 -05:00
Alexander Traud 4d0ab620be chan_sip: DiffServ/ToS not only on UDP but also on TCP and TLS sockets.
ASTERISK-27195
Reported by: Joshua Roys

Change-Id: I6e72ecb874200dec7a3865c7babaf5ac0d3101de
2020-04-16 10:20:36 -05:00