Commit Graph

483 Commits

Author SHA1 Message Date
Ben Ford 1031a1805b STIR/SHAKEN: Option split and response codes.
The stir_shaken configuration option now has 4 different choices to pick
from: off, attest, verify, and on. Off and on behave the same way they
do now. Attest will only perform attestation on the endpoint, and verify
will only perform verification on the endpoint.

Certain responses are required to be sent based on certain conditions
for STIR/SHAKEN. For example, if we get a Date header that is outside of
the time range that is considered valid, a 403 Stale Date response
should be sent. This and several other responses have been added.

Change-Id: I4ac1ecf652cd0e336006b0ca638dc826b5b1ebf7
2021-10-27 08:39:56 -05:00
Matthew Kern 5e9799a42e res_pjsip_t38: bind UDPTL sessions like RTP
In res_pjsip_sdp_rtp, the bind_rtp_to_media_address option and the
fallback use of the transport's bind address solve problems sending
media on systems that cannot send ipv4 packets on ipv6 sockets, and
certain other situations. This change extends both of these behaviors
to UDPTL sessions as well in res_pjsip_t38, to fix fax-specific
problems on these systems, introducing a new option
endpoint/t38_bind_udptl_to_media_address.

ASTERISK-29402

Change-Id: I87220c0e9cdd2fe9d156846cb906debe08c63557
2021-10-01 08:57:07 -05:00
Joseph Nadiv 47cb177baf res_pjsip_registrar: Remove unavailable contacts if exceeds max_contacts
The behavior of max_contacts and remove_existing are connected.  If
remove_existing is enabled, the soonest expiring contacts are removed.
This may occur when there is an unavailable contact.  Similarly,
when remove_existing is not enabled, registrations from good
endpoints are rejected in favor of retaining unavailable contacts.

This commit adds a new AOR option remove_unavailable, and the effect
of this setting will depend on remove_existing.  If remove_existing
is set to no, we will still remove unavailable contacts when they
exceed max_contacts, if there are any. If remove_existing is set to
yes, we will prioritize the removal of unavailable contacts before
those that are expiring soonest.

ASTERISK-29525

Change-Id: Ia2711b08f2b4d1177411b1be23e970d7fdff5784
2021-09-24 11:47:22 -05:00
Bernd Zobl f160725fc4 res_pjsip/pjsip_message_filter: set preferred transport in pjsip_message_filter
Set preferred transport when querying the local address to use in
filter_on_tx_messages(). This prevents the module to erroneously select
the wrong transport if more than one transports of the same type (TCP or
TLS) are configured.

ASTERISK-29241

Change-Id: I598e60257a7f92b29efce1fb3e9a2fc06f1439b6
2021-06-15 09:06:36 -05:00
Joshua C. Colp 44fde9f428 res_pjsip: On partial transport reload also move factories.
For connection oriented transports PJSIP uses factories to
produce transports. When doing a partial transport reload
we need to also move the factory of the transport over so
that anything referencing the transport (such as an endpoint)
has the factory available.

ASTERISK-29441

Change-Id: Ieae0fb98eab2d9257cad996a1136e5a62d307161
2021-05-26 11:24:15 -05:00
George Joseph 9cc1d6fc22 res_pjsip_outbound_authenticator_digest: Be tolerant of RFC8760 UASs
RFC7616 and RFC8760 allow more than one WWW-Authenticate or
Proxy-Authenticate header per realm, each with different digest
algorithms (including new ones like SHA-256 and SHA-512-256).
Thankfully however a UAS can NOT send back multiple Authenticate
headers for the same realm with the same digest algorithm.  The
UAS is also supposed to send the headers in order of preference
with the first one being the most preferred.  We're supposed to
send an Authorization header for the first one we encounter for a
realm that we can support.

The UAS can also send multiple realms, especially when it's a
proxy that has forked the request in which case the proxy will
aggregate all of the Authenticate headers and then send them all
back to the UAC.

It doesn't stop there though... Each realm can require a
different username from the others.  There's also nothing
preventing each digest algorithm from having a unique password
although I'm not sure if that adds any benefit.

So now... For each Authenticate header we encounter, we have to
determine if we support the digest algorithm and, if not, just
skip the header.  We then have to find an auth object that
matches the realm AND the digest algorithm or find a wildcard
object that matches the digest algorithm. If we find one, we add
it to the results vector and read the next Authenticate header.
If the next header is for the same realm AND we already added an
auth object for that realm, we skip the header. Otherwise we
repeat the process for the next header.

In the end, we'll have accumulated a list of credentials we can
pass to pjproject that it can use to add Authentication headers
to a request.

NOTE: Neither we nor pjproject can currently handle digest
algorithms other than MD5.  We don't even have a place for it in
the ast_sip_auth object. For this reason, we just skip processing
any Authenticate header that's not MD5.  When we support the
others, we'll move the check into the loop that searches the
objects.

Changes:

 * Added a new API ast_sip_retrieve_auths_vector() that takes in
   a vector of auth ids (usually supplied on a call to
   ast_sip_create_request_with_auth()) and populates another
   vector with the actual objects.

 * Refactored res_pjsip_outbound_authenticator_digest to handle
   multiple Authenticate headers and set the stage for handling
   additional digest algorithms.

 * Added a pjproject patch that allows them to ignore digest
   algorithms they don't support.  This patch has already been
   merged upstream.

 * Updated documentation for auth objects in the XML and
   in pjsip.conf.sample.

 * Although res_pjsip_authenticator_digest isn't affected
   by this change, some debugging and a testsuite AMI event
   was added to facilitate testing.

Discovered during OpenSIPit 2021.

ASTERISK-29397

Change-Id: I3aef5ce4fe1d27e48d61268520f284d15d650281
2021-05-20 11:13:38 -05:00
Sean Bright 4a843e00ef res_pjsip.c: OPTIONS processing can now optionally skip authentication
ASTERISK-27477 #close

Change-Id: I68f6715bba92a525149e35d142a49377a34a1193
2021-04-28 16:39:06 -05:00
Joshua C. Colp 623abc2b6a res_pjsip: Give error when TLS transport configured but not supported.
Change-Id: I058af496021ff870ccec2d8cbade637b348ab80b
2021-03-31 10:17:03 -05:00
Joshua C. Colp 71dfbdc7b9 res_pjsip: Add support for partial transport reload.
Some configuration items for a transport do not result in
the underlying transport changing, but instead are just
state we keep ourselves and use. It is perfectly reasonable
to change these items.

These include local_net and external_* information.

ASTERISK-29354

Change-Id: I027857ccfe4419f460243e562b5f098434b3d43a
2021-03-22 04:09:18 -05:00
Alexander Traud 10a0a0c59b pjsip_scheduler: Fix pjsip show scheduled_tasks like for compiler Clang.
Otherwise, Clang 10 warned because of logical-not-parentheses.

Change-Id: Ia8fb493f727b08070eb2dcf520c08df34ed11d79
2021-01-18 10:37:28 -06:00
Nick French 505939c9ed res_pjsip: Prevent segfault in UDP registration with flow transports
Segfault occurs during outbound UDP registration when all
transport states are being iterated over. The transport object
in the transport is accessed, but flow transports have a NULL
transport object.

Modify to not iterate over any flow transport

ASTERISK-29210 #close

Change-Id: If28dc3a18bdcbd0a49598b09b7fe4404d45c996a
2021-01-04 05:01:30 -06:00
Alexander Greiner-Baer fba10fb54c res_pjsip: set Accept-Encoding to identity in OPTIONS response
RFC 3261 says that the Accept-Encoding header should be present
in an options response. Permitted values according to RFC 2616
are only compression algorithms like gzip or the default identity
encoding. Therefore "text/plain" is not a correct value here.
As long as the header is hard coded, it should be set to "identity".

Without this fix an Alcatel OmniPCX periodically logs warnings like
"[sip_acceptIncorrectHeader] Header Accept-Encoding is malformed"
on a SIP Trunk.

ASTERISK-29165 #close

Change-Id: I0aa2211ebf0b4c2ed554ac7cda794523803a3840
2020-11-19 16:14:33 -06:00
George Joseph 5a4640d208 pjsip_scheduler.c: Add type ONESHOT and enhance cli show command
* Added a ONESHOT type that never reschedules.

* Added "like" capability to "pjsip show scheduled_tasks" so you can do
  the following:

  CLI> pjsip show scheduled_tasks like outreg
  PJSIP Scheduled Tasks:

  Task Name                                     Interval  Times Run ...
  ============================================= ========= ========= ...
  pjsip/outreg/testtrunk-reg-0-00000074            50.000   oneshot ...
  pjsip/outreg/voipms-reg-0-00000073              110.000   oneshot ...

* Fixed incorrect display of "Next Start".

* Compacted the displays of times in the CLI.

* Added two new functions (ast_sip_sched_task_get_times2,
  ast_sip_sched_task_get_times_by_name2) that retrieve the interval,
  next start time, and next run time in addition to the times already
  returned by ast_sip_sched_task_get_times().

Change-Id: Ie718ca9fd30490b8a167bedf6b0b06d619dc52f3
2020-11-09 16:38:37 -06:00
Alexander Traud b52acb87b0 res_pjsip/config_transport: Load and run without OpenSSL.
ASTERISK-28933
Reported-by: Walter Doekes

Change-Id: I65eac49e5b0a79261ea80e2b9b38a836886ed59f
2020-11-09 08:54:45 -06:00
Kevin Harwell c62193c5de res_pjsip, res_pjsip_session: initialize local variables
This patch initializes a couple of local variables to some default values.
Interestingly, in the 'pj_status_t dlg_status' case the value not being
initialized caused memory to grow, and not be recovered, in the off nominal
path (at least on my machine).

Change-Id: I22ee65e1e1bff8efacea8a167c6c8428898523f7
2020-10-28 09:51:44 -05:00
Joshua C. Colp dcd2ed69a3 res_pjsip: Adjust outgoing offer call pref.
This changes the outgoing offer call preference
default option to match the behavior of previous
versions of Asterisk.

The additional advanced codec negotiation options
have also been removed from the sample configuration
and marked as reserved for future functionality in
XML documentation.

The codec preference options have also been fixed to
enforce local codec configuration.

ASTERISK-29109

Change-Id: Iad19347bd5f3d89900c15ecddfebf5e20950a1c2
2020-10-13 11:10:56 -03:00
Torrey Searle 888090ab18 res_pjsip_diversion: implement support for History-Info
Implemention of History-Info capable of interworking with Diversion
Header following RFC7544

ASTERISK-29027 #close

Change-Id: I2296369582d4b295c5ea1e60bec391dd1d318fa6
2020-09-16 09:08:07 -05:00
Joshua C. Colp 447f6cc37a res_pjsip: Fix codec preference defaults.
When reading in a codec preference configuration option
the value would be set on the respective option before
applying any default adjustments, resulting in the
configuration not being as expected.

This was exposed by the REST API push configuration as
it used the configuration returned by Asterisk to then do
a modification. In the case of codec preferences one of
the options had a transcode value of "unspecified" when the
defaults should have ensured it would be "allow" instead.

This also renames the options in other places that were
missed.

Change-Id: I4ad42e74fdf181be2e17bc75901c62591d403964
2020-08-11 05:44:07 -05:00
George Joseph a15e64aaf5 ACN: Configuration renaming for pjsip endpoint
This change renames the codec preference endpoint options.
incoming_offer_codec_prefs becomes codec_prefs_incoming_offer
to keep the options together when showing an endpoint.

Change-Id: I6202965b4723777f22a83afcbbafcdafb1d11c8d
2020-08-06 10:50:16 -05:00
Ben Ford 5fbed5af24 res_stir_shaken: Add stir_shaken option and general improvements.
Added a new configuration option for PJSIP endpoints - stir_shaken. If
set to yes, then STIR/SHAKEN support will be added to inbound and
outbound INVITEs. The default is no. Alembic has been updated to include
this option.

Previously the dialplan function was not trimming the whitespace from
the parameters it recieved. Now it does.

Also added a conditional that, when TEST_FRAMEWORK is enabled, the
timestamp in the identity header will be overlooked. This is just for
testing, since the testsuite will rely on a SIPp scenario with a preset
identity header to trigger the MISMATCH result.

Change-Id: I43d67f1489b8c1c5729ed3ca8d71e35ddf438df1
2020-07-10 09:57:09 -05:00
George Joseph 2d22e34206 ACN: res_pjsip endpoint options
This commit adds the endpoint options required to control
Advanced Codec Negotiation.

incoming_offer_codec_prefs
outgoing_offer_codec_prefs
incoming_answer_codec_prefs
outgoing_answer_codec_prefs

The documentation may need tweaking and some additional edits
added, especially for the "answer" prefs.  That'll be handled
when things finalize.

This commit is safe to merge as it doens't alter any existing
functionality nor does it alter the previous codec negotiation
work which may now be obsolete.

Change-Id: I920ba925d7dd36430dfd2ebd9d82d23f123d0e11
2020-07-08 09:03:58 -05:00
sungtae kim 81b5e4a73f res_pjsip.c: Added disable_rport option for pjsip.conf
Currently when the pjsip making an outgoing request, it keep adding the
rport parameter in a request message as a default.

This causes unexpected rport handle at the other end.

Added option for disable this behaviour in the pjsip.conf.

This is a system option, but working as a gloabl option.

ASTERISK-28959

Change-Id: I9596675e52a742774738b5aad5d1fec32f477abc
2020-07-07 15:20:05 -05:00
Joshua C. Colp 4f86118bd8 res_pjsip: Apply AOR outbound proxy to static contacts.
The outbound proxy for an AOR was not being applied to
any statically configured Contacts. This resulted in the
OPTIONS requests being sent to the wrong target.

This change sets the outbound proxy on statically configured
contacts once the AOR configuration is done being
applied.

ASTERISK-28965

Change-Id: Ia60f3e93ea63f819c5a46bc8b54be2e588dfa9e0
2020-06-26 05:38:14 -05:00
Roger James c8dec423d2 pjsip_resolver.c: Ensure AAAA dns requests are made.
1. Modify sip_resolve and sip_resolve_callback to request AAAA lookups
   when an IPV6 transport type has been requested.

2. Rename all occurrences of pjsip_transport_get_type_name to
   pjsip_transport_get_type_desc. This ensures that the log/debug info
   shows whether the transport is IPv6 or IPv4.

3. Do not add the constant PJSIP_TRANSPORT_IPV6 to existing transport
   types. This results in invalid values. Use a bitwise or instead.

ASTERISK-26780
Patches:
    pjsip_resolver.c uploaded by Peter Sokolov (License #7070)

Change-Id: I8b1e298f8efa682d0a7644113258fe76d9889c58
2020-05-13 06:43:05 -05:00
Joshua C. Colp d845464c76 res_pjsip: Don't set endpoint to unavailable in all cases.
When an AOR is modified endpoints are updated that reference
the AOR so they can start receiving updates and reflect the
correct state. If this is the case then we shouldn't change
the endpoint to be offline if it does not reference the AOR
but instead only when the endpoint is completely updated for
all its AORs.

ASTERISK-28056
patches:
  pjsip_options-aor.diff submitted by jhord (license 6978)

Change-Id: I3ee00023be2393113cd4e056599f23f3499ef164
2020-04-06 09:05:55 -05:00
George Joseph 7ba6d43083 test_res_pjsip_session_caps: Create unit test
This unit test runs through combinations of...
	* Local codecs
	* Remote Codecs
	* Codec Preference
	* Incoming/Outgoing

A few new APIs were created to make it easier to test
the functionality but didn't result in any actual
functional change.

ASTERISK_28777

Change-Id: Ic8957c43e7ceeab0e9272af60ea53f056164f164
2020-04-06 08:02:53 -05:00
George Joseph 2ee455958e codec_negotiation: Implement outgoing_call_offer_pref
Based on this new endpoint setting, a joint list of preferred codecs
between those received from the Asterisk core (remote), and those
specified in the endpoint's "allow" parameter (local) is created and
is used to create the outgoing SDP offer.

* Add outgoing_call_offer_pref to pjsip_configuration (endpoint)

* Add "call_direction" to res_pjsip_session.

* Update pjsip_session_caps.c to make the functions more generic
  so they could be used for both incoming and outgoing.

* Update ast_sip_session_create_outgoing to create the
  pending_media_state->topology with the results of
  ast_sip_session_create_joint_call_stream().

* The endpoint "preferred_codec_only" option now automatically sets
  AST_SIP_CALL_CODEC_PREF_FIRST in incoming_call_offer_pref.

* A helper function ast_stream_get_format_count() was added to
  streams to return the current count of formats.

ASTERISK-28777

Change-Id: Id4ec0b4a906c2ae5885bf947f101c59059935437
2020-04-06 08:00:49 -05:00
Kevin Harwell 06dada3f01 codec negotiation: add incoming_call_offer_prefs option
Add a new option, incoming_call_offer_pref, to res_pjsip endpoints that
specifies the preferred order of codecs after receiving an offer.

This patch does the following:

  Adds a new enumeration, ast_sip_call_codec_pref, used by the the new
configuration option that's added to the endpoint media structure.

  Adds a new ast_sip_session_caps structure that's set for each session media
object.

  Creates a new file, res_pjsip_session_caps that "implements" the new
structure and option, and is compiled into the res_pjsip_session library.

ASTERISK-28756 #close

Change-Id: I35e7a2a0c236cfb6bd9cdf89539f57a1ffefc76f
2020-03-03 14:51:14 -06:00
Joshua C. Colp d6712790cd pjsip: Update ACLs on named ACL changes.
This change extends the Sorcery API to allow a wizard to be
told to explicitly reload objects or a specific object type
even if the wizard believes that nothing has changed.

This has been leveraged by res_pjsip and res_pjsip_acl to
reload endpoints and PJSIP ACLs when a named ACL changes.

ASTERISK-28697

Change-Id: Ib8fee9bd9dd490db635132c479127a4114c1ca0b
2020-02-20 04:52:11 -06:00
George Joseph cbc1136704 res_pjsip_nat: Restore original contact for REGISTER responses
RFC3261 Section 10 "Registrations", specifically paragraph
"10.2.4: Refreshing Bindings", states that a user agent compares
each contact address (in a 200 REGISTER response) to see if it
created the contact.  If the Asterisk endpoint has the
rewrite_contact option set however, the contact host and port sent
back in the 200 response will be the rewritten one and not the
one sent by the user agent.  This prevents the user agent from
matching its own contact.  Some user agents get very upset when
this happens and will not consider the registration successful.
While this is rare, it is acceptable behavior especially if more
than 1 user agent is allowed to register to a single endpoint/aor.

This commit updates res_pjsip_nat (where rewrite_contact is
implemented) to store the original incoming Contact header in
a new "x-ast-orig-host" URI parameter before rewriting it, and to
restore the original host and port to the Contact headers in the
outgoing response.

This is only done if the request is a REGISTER and rewrite_contact
is enabled.

pjsip_message_filter was also updated to ensure that if a request
comes in with any existing x-ast-* URI parameters, we remove them
so they don't conflict.  Asterisk will never send a request
with those headers in it but someone might just decide to add them
to a request they craft and send to Asterisk.

NOTE: If a device changes its contact address and registers again,
it's a NEW registration.  If the device didn't unregister the
original registration then all existing behavior based
on aor/remove_existing and aor/max_contacts apply.

ASTERISK-28502
Reported-by: Ross Beer

Change-Id: Idc263ad2d2d7bd8faa047e5804d96a5fe1cd282e
2019-12-06 12:48:08 -06:00
Kevin Harwell bdd785d31c various files - fix some alerts raised by lgtm code analysis
This patch fixes several issues reported by the lgtm code analysis tool:

https://lgtm.com/projects/g/asterisk/asterisk

Not all reported issues were addressed in this patch. This patch mostly fixes
confirmed reported errors, potential problematic code points, and a few other
"low hanging" warnings or recommendations found in core supported modules.
These include, but are not limited to the following:

* innapropriate stack allocation in loops
* buffer overflows
* variable declaration "hiding" another variable declaration
* comparisons results that are always the same
* ambiguously signed bit-field members
* missing header guards

Change-Id: Id4a881686605d26c94ab5409bc70fcc21efacc25
2019-11-18 08:30:45 -06:00
Sean Bright 32ce6e9a06 channels: Allow updating variable value
When modifying an already defined variable in some channel drivers they
add a new variable with the same name to the list, but that value is
never used, only the first one found.

Introduce ast_variable_list_replace() and use it where appropriate.

ASTERISK-23756 #close
Patches:
  setvar-multiplie.patch submitted by Michael Goryainov

Change-Id: Ie1897a96c82b8945e752733612ee963686f32839
2019-09-12 16:00:07 -05:00
Joshua Colp 86452c9fa4 res_pjsip: Fix multiple of the same contact in "pjsip show contacts".
The code for gathering contacts could result in the same contact
being retrieved and added to the list multiple times. The container
which stores the contacts to display will now only allow a contact
to be added to it once instead of multiple times.

ASTERISK-28228

Change-Id: I805185cfcec03340f57d2b9e6cc43c49401812df
2019-08-01 04:12:00 -06:00
Ben Ford 86836e0442 pjsip_options.c: Allow immediate qualifies for new contacts.
When multiple endpoints try to register close together using the same
AOR with qualify_frequency set, one contact would qualify immediately
while the other contacts would have to wait out the duration of the
timer before being able to qualify. Changing the conditional to check
the contact container count for a non-zero value allows all contacts to
qualify immediately.

Change-Id: I79478118ee7e0d6e76af7c354d66684220db9415
2019-05-07 10:26:19 -06:00
Joshua Colp 9c070a4ae3 Merge "res_pjsip: Added a norefersub configuration setting" 2019-04-19 08:30:14 -05:00
Dan Cropp cffa2a74cb res_pjsip: Added a norefersub configuration setting
Added a new PJSIP global setting called norefersub.
Default is true to keep support working as before.

res_pjsip_refer:  Configures PJSIP norefersub capability accordingly.

Checks the PJSIP global setting value.
If it is true (default) it adds the norefersub capability to PJSIP.
If it is false (disabled) it does not add the norefersub capability
to PJSIP.

This is useful for Cisco switches that do not follow RFC4488.

ASTERISK-28375 #close
Reported-by: Dan Cropp

Change-Id: I0b1c28ebc905d881f4a16e752715487a688b30e9
2019-04-17 10:18:40 -05:00
Alexei Gradinari fe58bc7bdf res_pjsip: Fix transport_states ref leak
Add missing ao2_ref(transport_state, -1) while iterate on a transport_states
container.

Change-Id: I40e35b5a339121300c80075c30db47201a6c374e
2019-04-10 08:37:49 -06:00
Torrey Searle 4661c08549 chan_pjsip: add a flag to ignore 183 responses if no SDP present
chan_sip will always ignore 183 responses that do not contain SDP
however, chan_pjsip will currently always translate it into a
183 with SDP.  This new flag allows chan_pjsip to have the same
behavior as chan_sip.

ASTERISK-28322 #close

Change-Id: If81cfaa17c11b6ac703e3d71696f259d86c6be4a
2019-03-08 14:16:30 -05:00
Joshua Colp c20b84e35b Merge "res_pjsip_registrar: blocked threads on reliable transport shutdown take 3" 2019-03-05 07:16:05 -06:00
Sean Bright 101272d0dc Revert "pjsip_message_filter: Only do interface lookup for wildcard addresses."
This reverts commit d524ad523d.

Reason for revert: This causes Contact and Via headers to have the wrong
transport address.

ASTERISK-28309 #close

Change-Id: Ibba4d6176f68e39279fcd9a545f81d56e747bed8
2019-02-28 06:57:58 -06:00
Kevin Harwell 930a7fe910 res_pjsip_registrar: blocked threads on reliable transport shutdown take 3
When a contact was removed by the registrar it did not always check to see if
the circumstances involved a monitored reliable transport. For instance, if the
'remove_existing' option was set to 'true' then when existing contacts were
removed due to 'max_contacts' being reached, those existing contacts being
removed did not unregister the transport monitor.

Also, it was possible to add more than one monitor on a reliable transport for
a given aor and contact.

This patch makes it so all contact removals done by the registrar also remove
any associated transport monitors if necessary. It also makes it so duplicate
monitors cannot be added for a given transport.

ASTERISK-28213

Change-Id: I94b06f9026ed177d6adfd538317c784a42c1b17a
2019-02-27 17:02:43 -06:00
George Joseph c2adeb9dc2 taskprocessor: Enable subsystems and overload by subsystem
To prevent one subsystem's taskprocessors from causing others
to stall, new capabilities have been added to taskprocessors.

* Any taskprocessor name that has a '/' will have the part
  before the '/' saved as its "subsystem".
  Examples:
  "sorcery/acl-0000006a" and "sorcery/aor-00000019"
  will be grouped to subsystem "sorcery".
  "pjsip/distributor-00000025" and "pjsip/distributor-00000026"
  will bn grouped to subsystem "pjsip".
  Taskprocessors with no '/' have an empty subsystem.

* When a taskprocessor enters high-water alert status and it
  has a non-empty subsystem, the subsystem alert count will
  be incremented.

* When a taskprocessor leaves high-water alert status and it
  has a non-empty subsystem, the subsystem alert count will be
  decremented.

* A new api ast_taskprocessor_get_subsystem_alert() has been
  added that returns the number of taskprocessors in alert for
  the subsystem.

* A new CLI command "core show taskprocessor alerted subsystems"
  has been added.

* A new unit test was addded.

REMINDER: The taskprocessor code itself doesn't take any action
based on high-water alerts or overloading.  It's up to taskprocessor
users to check and take action themselves.  Currently only the pjsip
distributor does this.

* A new pjsip/global option "taskprocessor_overload_trigger"
  has been added that allows the user to select the trigger
  mechanism the distributor uses to pause accepting new requests.
  "none": Don't pause on any overload condition.
  "global": Pause on ANY taskprocessor overload (the default and
  current behavior)
  "pjsip_only": Pause only on pjsip taskprocessor overloads.

* The core pjsip pool was renamed from "SIP" to "pjsip" so it can
  be properly grouped into the "pjsip" subsystem.

* stasis taskprocessor names were changed to "stasis" as the
  subsystem.

* Sorcery core taskprocessor names were changed to "sorcery" to
  match the object taskprocessors.

Change-Id: I8c19068bb2fc26610a9f0b8624bdf577a04fcd56
2019-02-20 11:51:08 -06:00
Kevin Harwell f668db9ba0 pjsip/config_global: regcontext context not created
The context specified by 'regcontext' was not being created, so when Asterisk
attempted to later dynamically add an extension it would fail. This patch now
creates the context if a 'regcontext' is specified.

ASTERISK-28238

Change-Id: I0f36cf4ab0a93ff4b1cc5548d617ecfd45e09265
2019-01-29 11:33:36 -06:00
Sean Bright 20f672539e pjsip_transport_management: Shutdown transport immediately on disconnect
The transport management code that checks for idle connections keeps a
reference to PJSIP's transport for IDLE_TIMEOUT milliseconds (32000 by
default). Because of this, if the transport is closed before this
timeout, the idle checking code will keep the transport from actually
being shutdown until the timeout expires.

Rather than passing the AO2 object to the scheduler task, we just pass
its key and look it up when it is time to potentially close the idle
connection. The other transport management code handles cleaning up
everything else for us.

Additionally, because we use the address of the transport when
generating its name, we concatenate an incrementing ID to the end of the
name to guarantee uniqueness.

Related to ASTERISK~28231

Change-Id: I02ee9f4073b6abca9169d30c47aa69b5e8ae9afb
2019-01-21 07:57:12 -06:00
Alexei Gradinari f0546d1d87 res_pjsip: add option to enable ContactStatus event when contact is updated
The commit I2f97ebfa79969a36a97bb7b9afd5b6268cf1a07d removed sending out
the ContactStatus AMI event when a contact is updated.
Thist change broke things which rely on old behavior.

This patch adds a new PJSIP global configuration option
'send_contact_status_on_update_registration' to be able to preserve old
ContactStatus behavior.
By default new behavior, i.e. the ContactStatus event will not be sent when a
device refreshes its registration.

Change-Id: I706adf7584e7077eb6bde6d9799ca408bc82ce46
2019-01-11 10:52:18 -05:00
Sungtae Kim 8644511cbf res_pjsip: Patch for res_pjsip_* module load/reload crash
The session_supplements for the pjsip makes crashes when the module
load/unload.

ASTERISK-28157

Change-Id: I5b82be3a75d702cf1933d8d1417f44aa10ad1029
2018-12-03 08:44:59 -06:00
Joshua Colp 50ac85cb40 stasis: Segment channel snapshot to reduce creation cost.
When a channel snapshot was created it used to be done
from scratch, copying all data (many strings). This incurs
a cost when doing so.

This change segments the channel snapshot into different
components which can be reused if unchanged from the
previous snapshot creation, reducing the cost. In normal
cases this results in some pointers being copied with
reference count being bumped, some integers being set,
and a string or two copied. The other benefit is that it
is now possible to determine if a channel snapshot update
is redundant and thus stop it before a message is published
to stasis.

The specific segments in the channel snapshot were split up
based on whether they are changed together, how often they
are changed, and their general grouping. In practice only
1 (or 0) of the segments actually get changed in normal
operation.

Invalidation is done by setting a flag on the channel when
the segment source is changed, forcing creation of a new
segment when the channel snapshot is created.

ASTERISK-28119

Change-Id: I5d7ef3df963a88ac47bc187d73c5225c315f8423
2018-11-26 12:56:24 -06:00
Corey Farrell 021ce938ca
astobj2: Remove legacy ao2_container_alloc routine.
Replace usage of ao2_container_alloc with ao2_container_alloc_hash or
ao2_container_alloc_list.  Remove ao2_container_alloc macro.

Change-Id: I0907d78bc66efc775672df37c8faad00f2f6c088
2018-11-21 09:56:16 -05:00
Chris-Savinovich a3fc97aa13 res_pjsip: Send a 503 response when overload state if reliable transport.
When Asterisk's taskprocessors get overloaded we need to reduce the work
load. res_pjsip currently ignores new SIP requests and relies on SIP
retransmissions in the hope that the overload condition will clear soon
enough to handle the retransmitted SIP request.
This change adds the following code after ast_taskprocessor_alert_get()
has returned TRUE:
1- identifies transport type. If non-udp then send a 503 response
2- if transport type is udp/udp6 then ignore, as before.

Change-Id: I1c230b40d43a254ea0f226b7acf9ee480a5d3836
2018-11-07 07:59:03 -05:00
Alexei Gradinari eee935983b pjsip: new endpoint's options to control Connected Line updates
This patch adds new options 'trust_connected_line' and 'send_connected_line'
to the endpoint.

The option 'trust_connected_line' is to control if connected line updates
are accepted from this endpoint.

The option 'send_connected_line' is to control if connected line updates
can be sent to this endpoint.

The default value is 'yes' for both options.

Change-Id: I16af967815efd904597ec2f033337e4333d097cd
2018-10-30 10:39:28 -05:00