Commit Graph

603 Commits

Author SHA1 Message Date
Etienne Lessard 5e0758575c pbx.c: Prevent infinite recursion in manager_show_dialplan_helper.
Previously, if context A was including context B and context B was including
context A, i.e. if there was a circular dependency between contexts, then
calling manager_show_dialplan_helper could lead to an infinite recursion,
resulting in a crash.

This commit applies the same solution as the one implemented in the
show_dialplan_helper function. The manager_show_dialplan_helper and
show_dialplan_helper functions contain lots of code in common, but the former
was missing the "infinite recursion avoidance" code.

ASTERISK-26226 #close

Change-Id: I1aea85133c21787226f4f8442253a93000aa0897
2016-08-29 08:07:38 -04:00
Corey Farrell eca3d2698a pbx.c: Additional fixes to ast_context_remove_extension_callerid2.
Do not check registrar of the first extension head.  We should only check
the registrar when we match the priority.

Additionally fix a couple calls to strcmp which used the input callerid
instead of the clean version ex.cidmatch.

ASTERISK-26233

Change-Id: I17ea6881a18f40840ae9c1f5394aab1fbb3769f1
2016-08-15 11:13:06 -05:00
Joshua Colp b8fdd3ad79 Merge "pbx.c: Fix handling of '-' in extension name and callerid" 2016-08-01 09:31:27 -05:00
Corey Farrell 89a0a1eb45 pbx.c: Fix handling of '-' in extension name and callerid
This adds a two strings to ast_exten.  name to go with exten and
cidmatch_display to go with cidmatch.  The new fields contain input used
to add the extension in the first place.  The existing fields now
contain stripped input that excludes insignificant spaces and dashes.
These stripped fields should always be used for comparisons.  The
unstripped fields should normally be used for display, but displaying
stripped values will not cause runtime errors.

Note the actual string is only stored twice if it contains dashes.  If
no dashes are found then both 'char *' fields point to the same memory.
So this change has a minimum effect on memory usage.

The existing functions ast_get_extension_name and
ast_get_extension_cidmatch return unstripped values as they did before
this change.  Other similar bugs likely still exist where unstripped
extensions are saved outside pbx.c then passed back in.

ASTERISK-26233 #close

Change-Id: I6cd61ce57acc1570ca6cc14960c4c3b0a9eb837f
2016-07-28 19:02:39 -05:00
Richard Mudgett 68ebf86e2f pbx.c: Allow dangerous functions when adding a hint to dialplan.
We can allow dangerous functions when adding a hint since altering
dialplan is itself a privileged activity.  Otherwise, we could never
execute dangerous functions.

ASTERISK-25996 #close
Reported by: Andrew Nagy

Change-Id: I4929ff100ad1200a0198262d069a34f2296e77ba
2016-07-28 15:11:33 -05:00
Corey Farrell 68de3a9e51 pbx.c: Remove duplicate code.
Merge code found in both branches of a conditional in
ast_add_extension2_lockopt.

The updated code initializes peer_table and peer_label_table of the
extension before linking it to the context.

Change-Id: Ic759e27cdc9906c6877df41d28ee9c5be8f41c20
2016-07-21 23:59:08 -04:00
Corey Farrell a36a174c4b pbx: Create pbx_sw.c for management of 'struct ast_sw'.
This changes context switches from a linked list to a vector, makes
'struct ast_sw' opaque to pbx.c.

Although ast_walk_context_switches is maintained the procedure is no
longer efficient except for the first call (inc==NULL).  This
functionality is replaced by two new functions implemented by vector
macros.
* ast_context_switches_count (AST_VECTOR_SIZE)
* ast_context_switches_get (AST_VECTOR_GET)

As with ast_walk_context_switches callers of these functions are
expected to have locked contexts.  Only a few places in Asterisk walked
the switches, they have been converted to use the new functions.

Change-Id: I08deb016df22eee8288eb03de62593e45a1f0998
2016-07-21 13:58:26 -04:00
Corey Farrell e2e8713b84 pbx: Create pbx_ignorepat.c for management of 'struct ast_ignorepat'.
This changes context ignore patterns from a linked list to a vector,
makes 'struct ast_ignorepat' opaque to pbx.c.

Although ast_walk_context_ignorepats is maintained the procedure is no
longer efficient except for the first call (inc==NULL).  This
functionality is replaced by two new functions implemented by vector
macros.
* ast_context_ignorepats_count (AST_VECTOR_SIZE)
* ast_context_ignorepats_get (AST_VECTOR_GET)

As with ast_walk_context_ignorepats callers of these functions are
expected to have locked contexts.  Only a few places in Asterisk walked
the ignorepats, they have been converted to use the new functions.

Change-Id: I78f2157d275ef1b7d624b4ff7d770d38e5d7f20a
2016-07-18 03:21:43 -04:00
Corey Farrell be36bd7ca5 pbx: Create pbx_include.c for management of 'struct ast_include'.
This changes context includes from a linked list to a vector, makes
'struct ast_include' opaque to pbx.c.

Although ast_walk_context_includes is maintained the procedure is no
longer efficient except for the first call (inc==NULL).  This
functionality is replaced by two new functions implemented by vector
macros.
* ast_context_includes_count (AST_VECTOR_SIZE)
* ast_context_includes_get (AST_VECTOR_GET)

As with ast_walk_context_includes callers of these functions are
expected to have locked contexts.  Only a few places in Asterisk walked
the includes, they have been converted to use the new functions.

const have been applied where possible to parameters for ast_include
functions.

Change-Id: Ib5c882e27cf96fb2aec67a39c18b4c71c9c83b60
2016-07-15 05:34:29 -04:00
Corey Farrell f3608b50d7 pbx: Fix leak of timezone for time based includes.
Create include_free to run ast_destroy_timing and ast_free, use that in
all places that freed an ast_include structure.  This fixes a couple of
paths that previously did not run ast_destroy_timing.

ASTERISK-26196 #close

Change-Id: I1671bd111bef0dc113e8bf8f77f89fcfc395d838
2016-07-14 02:59:56 -05:00
Joshua Colp 8610f4344f Merge "pbx.h: Make ast_state_cb_type take more const." 2016-04-08 15:47:50 -05:00
Joshua Colp b47dfd1c6e Merge "pbx.c: Minor code rearangements." 2016-04-08 11:59:55 -05:00
Richard Mudgett 6138a75e8e pbx.h: Make ast_state_cb_type take more const.
This eliminates some casts that I made a note saying v10 and above
would no longer need them.

Better late than never :)

Change-Id: I346cdb3032b6478ceb40eb6fe732978b54035572
2016-04-07 17:20:17 -05:00
Richard Mudgett 72c19f7dc5 pbx.c: Minor code rearangements.
* Pull out a loop invariant.

* Convert an else-if ladder to a switch statement.

Change-Id: I0a95cfa9474a4600b9865f7b444534d275b37e95
2016-04-07 17:14:10 -05:00
Richard Mudgett 28cefc3e88 pbx: Update doxygen for extension state watchers.
Change-Id: Id1403b12136de62a272c01bb355aef65fd2c2d1e
2016-04-07 16:18:47 -05:00
Joshua Colp 1dc5e28624 pbx: Add support for autohints.
This change introduces the concept of autohints. These are hints
which are created as a result of device state changes occurring within
the core. When this happens a hint will be created (if it does not
exist already) using the device name as the extension.

For example if a device state change is received for "PJSIP/bob"
and autohints are enabled on a context then a hint will exist in
that context for "bob" with a device of "PJSIP/bob".

For virtual or custom device states the name after the type will
be used. For example if the device state of "Custom:bob" changes
then a hint will exist in that context for "bob" with a device of
"Custom:bob".

This functionality can be enabled in extensions.conf by placing
"autohints=yes" in a context.

ASTERISK-25881 #close

Change-Id: I7e444c7da41b7b7d33374420fec658beeb18584e
2016-04-05 18:29:30 -03:00
Kevin Harwell 7760029f19 pbx: Deadlock between contexts container and context_merge locks
Recent changes (ASTERISK-25394 commit 2bd27d1222)
introduced the possibility of a deadlock. Due to the mentioned modifications
ast_change_hints now needs to keep both merge/delete and state callbacks from
occurring while it executes. Unfortunately, sometimes ast_change_hints can be
called with the contexts container locked. When this happens it's possible for
another thread to grab the context_merge_lock before the thread calling into
ast_change_hints does and then try to obtain the contexts container lock. This
of course causes a deadlock between the two threads. The thread calling into
ast_change_hints waits for the other thread to release context_merge_lock and
the other thread is waiting on that one to release the contexts container lock.

Unfortunately, there is not a great way to fix this problem. When hints change,
the subsequent state callbacks cannot run at the same time as a merge/delete,
nor when the usual state callbacks do. This patch alleviates the problem by
having those particular callbacks (the ones run after a hint change) occur in a
serialized task. By moving the context_merge_lock to a task it can now safely be
attempted or held without a deadlock occurring.

ASTERISK-25640 #close
Reported by: Krzysztof Trempala

Change-Id: If2210ea241afd1585dc2594c16faff84579bf302
2016-01-11 13:46:25 -06:00
Corey Farrell 36f1eaf0b5 main/pbx: Move hangup handler routines to pbx_hangup_handler.c.
This is the sixth patch in a series meant to reduce the bulk of pbx.c.
This moves hangup handler management functions to their own source.

Change-Id: Ib25a75aa57fc7d5c4294479e5cc46775912fb104
2016-01-05 12:08:40 -05:00
Corey Farrell 3507494b8a main/pbx: Move dialplan application management routines to pbx_app.c.
This is the sixth patch in a series meant to reduce the bulk of pbx.c.
This moves dialplan application management functions to their own source.

Change-Id: I444c10fb90a3cdf9f3047605d6a8aad49c22c44c
2016-01-04 20:46:25 -05:00
Corey Farrell 54a8f1a396 main/pbx: Move switch routines to pbx_switch.c.
This is the fifth patch in a series meant to reduce the bulk of pbx.c.
This moves ast_switch functions to their own source.

Change-Id: Ic2592a18a5c4d8a3c2dcf9786c9a6f650a8c628e
2016-01-04 19:20:35 -05:00
Corey Farrell c3c8b8e41d main/pbx: Move timing routines to pbx_timing.c.
This is the fourth patch in a series meant to reduce the bulk of pbx.c.
This moves pbx timing functions to their own source.

Change-Id: I05c45186cb11edfc901e95f6be4e6a8abf129cd6
2016-01-04 19:00:23 -05:00
Corey Farrell 5ee5c3739e main/pbx: Move variable routines to pbx_variables.c.
This is the third patch in a series meant to reduce the bulk of pbx.c.
This moves channel and global variable routines to their own source.

Change-Id: Ibe8fb4647db11598591d443a99e3f99200a56bc6
2016-01-04 17:15:14 -05:00
Corey Farrell f9bfc2450e main/pbx: Move custom function routines to pbx_functions.c.
This is the second patch in a series meant to reduce the bulk of pbx.c.
This moves custom function management routines to their own source.

Change-Id: I34a6190282f781cdbbd3ce9d3adeac3c3805e177
2016-01-01 13:48:36 -05:00
George Joseph 5e67e51c6a main/pbx: Move pbx_builtin dialplan applications to pbx_builtins.c
We joked about splitting pbx.c into multiple files but this first step was
fairly easy.  All of the pbx_builtin dialplan applications have been moved
into pbx_builtins.c and a new pbx_private.h file was added. load_pbx_builtins()
is called by asterisk.c just after load_pbx().

A few functions were renamed and are cross-exposed between the 2 source files.

Change-Id: I87066be3dbf7f5822942ac1449d98cc43fc7561a
2015-12-30 20:24:02 -07:00
Joshua Colp 42a897c4c3 pbx: Update device and presence state when changing a hint extension.
When changing a hint extension without removing the hint first the
device state and presence state is not updated. This causes the state
of the hint to be that of the previous extension and not the current
one. This state is kept until a state change occurs as a result of
something (presence state change, device state change).

This change updates the hint with the current device and presence
state of the new extension when it is changed. Any state callbacks
which may have been added before the hint extension is changed are
also informed of the new device and presence state if either have
changed.

ASTERISK-25394 #close

Change-Id: If268f1110290e502c73dd289c9e7e7b27bc8432f
2015-09-19 08:20:51 -05:00
Joshua Colp b51cf1e712 pbx: Fix crash when issuing "core show hints" with long pattern match.
When issuing the "core show hints" CLI command a combination of both
the hint extension and context is created. This uses a fixed size
buffer expecting that the extension will not exceed maximum extension
length. When the extension is actually a pattern match this constraint
does not hold true, and the extension may exceed the maximum extension
length. In this case extra characters are written past the end of the
fixed size buffer.

This change makes it so the construction of the combined hint extension
and context can not exceed the size of the buffer.

ASTERISK-25367 #close

Change-Id: Idfa1b95d0d4dc38e675be7c1de8900b3f981f499
2015-09-02 12:47:51 -05:00
Richard Mudgett 4a875e8082 pbx.c: Post AMI VarSet event if delete a non-empty dialplan variable.
ASTERISK-25256 #close
Reported by: Richard Mudgett

Change-Id: I0b6be720b66fa956f6a798cd22ef8934eb0c0ff3
2015-07-17 11:20:27 -05:00
Matt Jordan 892cc5625f main/pbx: Resolve case sensitivity regression in PBX hints
When 8297136f was merged for ASTERISK-25040, a regression was introduced
surrounding the case sensitivity of device names within hints.
Previously, device names - such as 'sip/foo' - were compared in a case
insensitive fashion. Thus, 'sip/foo' was equivalent to 'SIP/foo'. After
that patch, only the case sensitive name would match, i.e., 'SIP/foo'.
As a result, some dialplan hints stopped working.

This patch re-introduces case insensitive matching for device names in
hints.

ASTERISK-25040

ASTERISK-25202 #close

Change-Id: If5046a7d14097e1e3c12b63092b9584bb1e9cb4c
(cherry picked from commit 96bbcf495a)
2015-06-26 21:05:38 -05:00
Corey Farrell 80621ce3c5 Fix unsafe uses of ast_context pointers.
Although ast_context_find, ast_context_find_or_create and
ast_context_destroy perform locking of the contexts table,
any context pointer can become invalid at any time that the
contexts table is unlocked. This change adds locking around
all complete operations involving these functions.

Places where ast_context_find was followed by ast_context_destroy
have been replaced with calls ast_context_destroy_by_name.

ASTERISK-25094 #close
Reported by: Corey Farrell

Change-Id: I1866b6787730c9c4f3f836b6133ffe9c820734fa
2015-06-08 11:09:57 -04:00
Matt Jordan 7ac28be04b main/pbx: Improve performance of dialplan reloads with a large number of hints
The PBX core maintains two hash tables for hints: a container of the
actual hints (hints), along with a container of devices that are watching that
hint (hintdevices). When a dialplan reload occurs, each hint in the hints
container is destroyed; this requires a lookup in the container of devices to
find the device => hint mapping object. In the current code, this performs an
ao2_callback, iterating over each of the device to hint objects in the
hintdevices container. For a large number of hints, this is extremely
expensive: dialplan reloads with 20000 hints could take several minutes
in just this phase.

This patch improves the performance of this step in the dialplan reloads
by caching which devices are watching a hint on the hint object itself.
Since we don't want to create a circular reference, we just cache the
name of the device. This allows us to perform a smarter ao2_callback on
the hintdevices container during hint removal, hashing on the name of the
device and returning an iterator to the matching names. The overall
performance improvement is rather large, taking this step down to a number of
seconds as opposed to minutes.

In addition, this patch also registers the hint containers in the PBX
core with the astobj2 library. This allows for reasonable debugging to
hash collisions in those containers.

ASTERISK-25040 #close
Reported by: Matt Jordan

Change-Id: Iedfc97a69d21070c50fca42275d7b3e714e59360
2015-05-01 08:35:18 -05:00
Matt Jordan 8e903b17ea main/pbx: Don't attempt to destroy a previously destroyed exten/priority tuple
When a PBX registrar is unloaded, it will fail to remove its extension from
the context root_table if a dialplan application used by that extension is
still loaded. This can be the case for AGI, which can be unloaded after several
of the standard PBX providers. Often, this is harmless; however, if the
extension's priorities are removed during the failed unloading *and* the
dialplan application later unregisters, it leaves a ticking timebomb for the
next PBX provider that attempts to iterate over the extensions. When that
occurs, the peer_table pointer on the extension will already be set to NULL.
The current code does not check to see if the pointer is NULL before passing
it to a hashtab function this is not NULL tolerant.

Since it is possible for the peer_table to be NULL when we normally would not
expect that to be the case, the solution in this patch is to simply skip over
processing an extension's priorities if peer_table is NULL.

Prior to this patch, the tests/pbx/callerid_match test would crash during
module unload. With this patch, the test no longer crashes after running.

ASTERISK-24774 #close
Reported by: Corey Farrell

Change-Id: I2bbeecb7e0f77bac303a1b9135e4cdb4db6d4c40
2015-04-19 16:03:32 -05:00
Matt Jordan 4a58261694 git migration: Refactor the ASTERISK_FILE_VERSION macro
Git does not support the ability to replace a token with a version
string during check-in. While it does have support for replacing a
token on clone, this is somewhat sub-optimal: the token is replaced
with the object hash, which is not particularly easy for human
consumption. What's more, in practice, the source file version was often
not terribly useful. Generally, when triaging bugs, the overall version
of Asterisk is far more useful than an individual SVN version of a file. As a
result, this patch removes Asterisk's support for showing source file
versions.

Specifically, it does the following:

* Rename ASTERISK_FILE_VERSION macro to ASTERISK_REGISTER_FILE, and
  remove passing the version in with the macro. Other facilities
  than 'core show file version' make use of the file names, such as
  setting a debug level only on a specific file. As such, the act of
  registering source files with the Asterisk core still has use. The
  macro rename now reflects the new macro purpose.

* main/asterisk:
  - Refactor the file_version structure to reflect that it no longer
    tracks a version field.
  - Remove the "core show file version" CLI command. Without the file
    version, it is no longer useful.
  - Remove the ast_file_version_find function. The file version is no
    longer tracked.
  - Rename ast_register_file_version/ast_unregister_file_version to
    ast_register_file/ast_unregister_file, respectively.

* main/manager: Remove value from the Version key of the ModuleCheck
  Action. The actual key itself has not been removed, as doing so would
  absolutely constitute a backwards incompatible change. However, since
  the file version is no longer tracked, there is no need to attempt to
  include it in the Version key.

* UPGRADE: Add notes for:
  - Modification to the ModuleCheck AMI Action
  - Removal of the "core show file version" CLI command

Change-Id: I6cf0ff280e1668bf4957dc21f32a5ff43444a40e
2015-04-13 03:48:57 -04:00
Corey Farrell 3ddd92902a Replace most uses of ast_register_atexit with ast_register_cleanup.
Since 'core stop now' and 'core restart now' do not stop modules,
it is unsafe for most of the core to run cleanups.  Originally all
cleanups used ast_register_atexit, and were only changed when it
was shown to be unsafe.  ast_register_atexit is now used only when
absolutely required to prevent corruption and close child processes.

Exceptions that need to use ast_register_atexit:
* CDR: Flush records.
* res_musiconhold: Kill external applications.
* AstDB: Close the DB.
* canary_exit: Kill canary process.

ASTERISK-24142 #close
Reported by: David Brillert

ASTERISK-24683 #close
Reported by: Peter Katzmann

ASTERISK-24805 #close
Reported by: Badalian Vyacheslav

ASTERISK-24881 #close
Reported by: Corey Farrell

Review: https://reviewboard.asterisk.org/r/4500/
Review: https://reviewboard.asterisk.org/r/4501/
........

Merged revisions 433495 from http://svn.asterisk.org/svn/asterisk/branches/11
........

Merged revisions 433497 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@433498 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-03-26 22:24:26 +00:00
Corey Farrell c08fd275bf Logger: Convert 'struct ast_callid' to unsigned int.
Switch logger callid's from AO2 objects to simple integers.
This helps in two ways.  Copying integers is faster than
referencing AO2 objects, so this will result in a small
reduction in logger overhead.  This also erases the possibility
of an infinate loop caused by an invalid callid in
threadstorage.

ASTERISK-24833 #comment Committed callid conversion to trunk. 
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4466/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@432834 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-03-13 01:12:35 +00:00
Mark Michelson bd0bdf1e41 Fix some memory leaks.
These memory leaks were found and fixed by John Hardin. I'm just
committing them for him.

ASTERISK-24736 #close
Reported by Mark Michelson

Review: https://reviewboard.asterisk.org/r/4389
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@431469 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-01-30 16:49:59 +00:00
Mark Michelson 7dc784ffa9 Call extension state callbacks at hint creation.
When a hint gets created, any subsequent device or presence
state changes result in extension status events getting sent
out to interested parties. However, at the time of hint creation,
no such event gets sent out, so watchers of extension state are
potentially left in the dark until the first state change after
hint creation.

Patch contributed by John Hardin (License #6512)
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Merged revisions 430776 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@430777 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-01-19 18:15:03 +00:00
Richard Mudgett c7ea108e02 Revert -r430452 It needs to be redone for the next major AMI version change instead.
ASTERISK-24049


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@430509 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-01-12 18:09:27 +00:00
Richard Mudgett ef34a05f21 AMI: Remove no longer used parameter from astman_send_listack().
Follow-up issue to -r430435 from reviewboard review.

ASTERISK-24049
Review: https://reviewboard.asterisk.org/r/4315/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@430452 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-01-09 18:53:49 +00:00
Richard Mudgett 52a7cdb101 AMI: Make AMI actions that generate event lists consistent.
* Made the following AMI actions use list API calls for consistency:
Agents
BridgeInfo
BridgeList
BridgeTechnologyList
ConfbridgeLIst
ConfbridgeLIstRooms
CoreShowChannels
DAHDIShowChannels
DBGet
DeviceStateList
ExtensionStateList
FAXSessions
Hangup
IAXpeerlist
IAXpeers
IAXregistry
MeetmeList
MeetmeListRooms
MWIGet
ParkedCalls
Parkinglots
PJSIPShowEndpoint
PJSIPShowEndpoints
PJSIPShowRegistrationsInbound
PJSIPShowRegistrationsOutbound
PJSIPShowResourceLists
PJSIPShowSubscriptionsInbound
PJSIPShowSubscriptionsOutbound
PresenceStateList
PRIShowSpans
QueueStatus
QueueSummary
ShowDialPlan
SIPpeers
SIPpeerstatus
SIPshowregistry
SKINNYdevices
SKINNYlines
Status
VoicemailUsersList

* Incremented the AMI version to 2.7.0.

* Changed astman_send_listack() to not use the listflag parameter and
always set the value to "Start" so the start capitalization is consistent.
i.e., The FAXSessions used "Start" while the rest of the system used
"start".  The corresponding complete event always used "Complete".

* Fixed ami_show_resource_lists() "PJSIPShowResourceLists" to output the
AMI ActionID for all of its list events.

* Fixed off-nominal AMI protocol error in manager_bridge_info(),
manager_parking_status_single_lot(), and
manager_parking_status_all_lots().  Use of astman_send_error() after
responding to the original AMI action request violates the action response
pattern by sending two responses.

* Fixed minor protocol error in action_getconfig() when no requested
categories are found.  Each line needs to be formatted as "Header: text".

* Fixed off-nominal memory leak in manager_build_parked_call_string().

* Eliminated unnecessary use of RAII_VAR() in ami_subscription_detail().

ASTERISK-24049 #close
Reported by: Jonathan Rose

Review: https://reviewboard.asterisk.org/r/4315/
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Merged revisions 430434 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@430435 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2015-01-09 18:16:54 +00:00
Matthew Jordan 3a73c6c90e main/pbx.c: Fix double lock of contexts lock introduced by r429967
We only need to hold the context_merge_lock once. Locking it twice will make
many other parts of Asterisk very sad.

ASTERISK-24641 #close


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@430111 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-12-24 16:59:42 +00:00
Matthew Jordan 0c38276d6e presencestate: Allow channel drivers to provide presence state information
This patch adds the ability for channel drivers to supply presence information
in a similar manner to device state. The patch does not provide any channel
driver implementations, but it does provide the core infrastructure necessary
for channel drivers to provide such information.

The core handles multiple providers of presence state information. Ordering
of presence state is as follows:
 INVALID < NOT_SET < AVAILABLE < UNAVAILABLE < CHAT < AWAY < XA < DND

Each provider can trump the previous if it provides a presence state that
supercedes a previous one.

Review: https://reviewboard.asterisk.org/r/4050

ASTERISK-24363 #close
Reported by: Gareth Palmer
patches:
  chan_presencestate-428146.patch uploaded by Gareth Palmer (License 5169)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@429967 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-12-22 14:33:24 +00:00
Joshua Colp dbb8f0a935 pbx: Fix off-nominal case where a freed extension may still be used.
If during the operation of adding an extension a priority is added but
fails it is possible for the extension to be freed but still exist in
the PBX core. If this occurs subsequent lookups may try to access the
extension and end up in freed memory.

This change removes the extension from the PBX core when the priority
addition fails and then frees the extension.

ASTERISK-24444 #close
Reported by: Leandro Dardini

Review: https://reviewboard.asterisk.org/r/4162/
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2014-11-12 16:13:15 +00:00
Jonathan Rose d4695774e7 Bridges: Fix feature interruption/unintended kick caused by external actions
If a manager or CLI user attached a mixmonitor to a call running a dynamic
bridge feature while in a bridge, the feature would be interrupted and the
channel would be forcibly kicked out of the bridge (usually ending the call
during a simple 1 to 1 call). This would also occur during any similar action
that could set the unbridge soft hangup flag, so the fix for this was to
remove unbridge from the soft hangup flags and make it a separate thing all
together.

ASTERISK-24027 #close
Reported by: mjordan
Review: https://reviewboard.asterisk.org/r/3900/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@420947 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-08-13 16:24:37 +00:00
Matthew Jordan 98af8fb715 pbx: Filter out pattern matching hints in responses sent to ExtensionStateList
Hints that are a pattern match are technically stored in the hint container in
the same fashion as concrete implementations of hints. The pattern matching
hints, however, are not "real" in the sense that things can subscribe to them:
rather, they are stored in the hints container so that when a subscription is
made a "real" hint can be generated for the subscription if one does not yet
exist. The extension state core takes care of this correctly by matching
against non-pattern matching extensions prior to pattern matching extensions.

Because of this, however, the ExtensionStateList AMI action was returning
pattern matching hints when executed. These hints are meaningless from the
perspective of AMI clients: their state will never change, they cannot be
subscribed to, and events would never normally be generated from them. As such,
we now filter these out of the response.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@420309 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-08-07 14:17:54 +00:00
George Joseph 3e5ab6ca39 pbx_lua: fix regression with global sym export and context clash by pbx_config.
ASTERISK-23818 (lua contexts being overwritten by contexts of the same name in
pbx_config) surfaced because pbx_lua, having the AST_MODFLAG_GLOBAL_SYMBOLS
set, was always force loaded before pbx_config.  Since I couldn't find any
reason for pbx_lua to export it's symbols to the rest of Asterisk, I simply
changed the flag to AST_MODFLAG_DEFAULT.  Problem solved.  What I didn't
realize was that the symbols need to be exported not because Asterisk needs
them but because any external Lua modules like luasql.mysql need the base
Lua language APIs exported (ASTERISK-17279).

Back to ASTERISK-23818...  It looks like there's an issue in pbx.c where
context_merge was only merging includes, switches and ignore patterns if
the context was already existing AND has extensions, or if the context was
brand new.  If pbx_lua is loaded before pbx_config, the context will exist
BUT pbx_lua, being implemented as a switch, will never place extensions in
it, just the switch statement.  The result is that when pbx_config loads,
it never merges the switch statement created by pbx_lua into the final
context.

This patch sets pbx_lua's modflag back to AST_MODFLAG_GLOBAL_SYMBOLS and adds
an "else if" in context_merge that catches the case where an existing context
has includes, switchs or ingore patterns but no actual extensions.

ASTERISK-23818 #close
Reported by: Dennis Guse
Reported by: Timo Teräs
Tested by: George Joseph
Review: https://reviewboard.asterisk.org/r/3891/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@420149 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-08-06 16:12:26 +00:00
Kinsey Moore 485d0379ae manager: Add state list commands
This patch adds three new AMI commands:
 * ExtensionStateList (pbx.c) - list all known extension state hints
   and their current statuses. Events emitted by the list action are
   equivalent to the ExtensionStatus events.
 * PresenceStateList (res_manager_presencestate) - list all known
   presence state values. Events emitted are generated by the stasis
   message type, and hence are PresenceStateChange events.
 * DeviceStateList (res_manager_devicestate) - list all known device
   state values. Events emitted are generated by the stasis message
   type, and hence are DeviceStateChange events.

Patch-by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/3799/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419806 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-07-30 18:32:25 +00:00
Richard Mudgett a2ce95d9d2 accountcode: Slightly change accountcode propagation.
The previous behavior was to simply set the accountcode of an outgoing
channel to the accountcode of the channel initiating the call.  It was
done this way a long time ago to allow the accountcode set on the SIP/100
channel to be propagated to a local channel so the dialplan execution on
the Local;2 channel would have the SIP/100 accountcode available.

SIP/100 -> Local;1/Local;2 -> SIP/200

Propagating the SIP/100 accountcode to the local channels is very useful.
Without any dialplan manipulation, all channels in this call would have
the same accountcode.

Using dialplan, you can set a different accountcode on the SIP/200 channel
either by setting the accountcode on the Local;2 channel or by the Dial
application's b(pre-dial), M(macro) or U(gosub) options, or by the
FollowMe application's b(pre-dial) option, or by the Queue application's
macro or gosub options.  Before Asterisk v12, the altered accountcode on
SIP/200 will remain until the local channels optimize out and the
accountcode would change to the SIP/100 accountcode.

Asterisk v1.8 attempted to add peeraccount support but ultimately had to
punt on the support.  The peeraccount support was rendered useless because
of how the CDR code needed to unconditionally force the caller's
accountcode onto the peer channel's accountcode.  The CEL events were thus
intentionally made to always use the channel's accountcode as the
peeraccount value.

With the arrival of Asterisk v12, the situation has improved somewhat so
peeraccount support can be made to work.  Using the indicated example, the
the accountcode values become as follows when the peeraccount is set on
SIP/100 before calling SIP/200:

SIP/100 ---> Local;1 ---- Local;2 ---> SIP/200
acct: 100 \/ acct: 200 \/ acct: 100 \/ acct: 200
peer: 200 /\ peer: 100 /\ peer: 200 /\ peer: 100

If a channel already has an accountcode it can only change by the
following explicit user actions:

1) A channel originate method that can specify an accountcode to use.

2) The calling channel propagating its non-empty peeraccount or its
non-empty accountcode if the peeraccount was empty to the outgoing
channel's accountcode before initiating the dial.  e.g., Dial and
FollowMe.  The exception to this propagation method is Queue.  Queue will
only propagate peeraccounts this way only if the outgoing channel does not
have an accountcode.

3) Dialplan using CHANNEL(accountcode).

4) Dialplan using CHANNEL(peeraccount) on the other end of a local
channel pair.

If a channel does not have an accountcode it can get one from the
following places:

1) The channel driver's configuration at channel creation.

2) Explicit user action as already indicated.

3) Entering a basic or stasis-mixing bridge from a peer channel's
peeraccount value.

You can specify the accountcode for an outgoing channel by setting the
CHANNEL(peeraccount) before using the Dial, FollowMe, and Queue
applications.  Queue adds the wrinkle that it will not overwrite an
existing accountcode on the outgoing channel with the calling channels
values.

Accountcode and peeraccount values propagate to an outgoing channel before
dialing.  Accountcodes also propagate when channels enter or leave a basic
or stasis-mixing bridge.  The peeraccount value only makes sense for
mixing bridges with two channels; it is meaningless otherwise.

* Made peeraccount functional by changing accountcode propagation as
described above.

* Fixed CEL extracting the wrong ie value for the peeraccount.  This was
done intentionally in Asterisk v1.8 when that version had to punt on
peeraccount.

* Fixed a few places dealing with accountcodes that were reading from
channels without the lock held.

AFS-65 #close

Review: https://reviewboard.asterisk.org/r/3601/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419520 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-07-24 22:48:38 +00:00
Matthew Jordan 97834718c2 Remove many deprecated modules
Billing records are fair,
To get paid is quite bright,
You should really use ODBC;
Good-bye cdr_sqlite.

Microsoft did once push H.323,
Hell, we all remember NetMeeting.
But try to compile chan_h323 now
And you will take quite a beating.

The XMPP and SIP war was fierce,
And in the distant fray
Was birthed res_jabber/chan_jingle;
But neither to stay.

For everyone did care and chase what Google professed.
"Free Internet Calling" was what devotees cried,
But Google did change the specs so often
That the developers were happy the day chan_gtalk died.

And then there was that odd application
Dedicated to the Polish tongue.
app_saycountpl was subsumed by Say;
One could say its bell was rung.

To read and parse a file from the dialplan
You could (I guess) use an application.
app_readfile did fill that purpose, but I think
A function is perhaps better in its creation.

Barging is rude, I'm not sure why we do it.
Inwardly, the caller will probably sigh.
But if you really must do it,
Don't use app_dahdibarge, use ChanSpy.

We all despise the sound of tinny robots
It makes our queues so cold.
To control such an abomination
It's better to not use Wait/SetMusicOnHold.

It's often nice to know properties of a channel
It makes our calls right
We have a nice function called CHANNEL
And so SIPCHANINFO is sent off into the night.

And now things get odd;
Apparently one could delimit with a colon
Properties from the SIPPEER function!
Commas are in; all others are done.

Finally, a word on pipes and commas.
We're sorry. We can't say it enough.
But those compatibility options in asterisk.conf;
To maintain them forever was just too tough.

This patch removes:

* cdr_sqlite
* chan_gtalk
* chan_jingle
* chan_h323
* res_jabber
* app_saycountpl
* app_readfile
* app_dahdibarge

It removes the following applications/functions:

* WaitMusicOnHold
* SetMusicOnHold
* SIPCHANINFO

It removes the colon delimiter from the SIPPEER function.

Finally, it also removes all compatibility options that were configurable from
asterisk.conf, as these all applied to compatibility with Asterisk 1.4 systems.

Review: https://reviewboard.asterisk.org/r/3698/



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@418019 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-07-04 13:26:37 +00:00
Jonathan Rose 04a9123309 pbx_config: Add manager actions to add/remove extensions
Adds two new manager commands to pbx_config - DialplanExtensionAdd and
DialplanExtensionRemove which allow manager users to create and delete
extensions respectively.

Review: https://reviewboard.asterisk.org/r/3650/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@417910 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-07-03 17:20:00 +00:00
Matthew Jordan 9cc1a8e893 stasis: Reduce creation of channel snapshots to improve performance
During some performance testing of Asterisk with AGI, ARI, and lots of Local
channels, we noticed that there's quite a hit in performance during channel
creation and releasing to the dialplan (ARI continue). After investigating
the performance spike that occurs during channel creation, we discovered
that we create a lot of channel snapshots that are technically unnecessary.
This includes creating snapshots during:
 * AGI execution
 * Returning objects for ARI commands
 * During some Local channel operations
 * During some dialling operations
 * During variable setting
 * During some bridging operations
And more.

This patch does the following:
 - It removes a number of fields from channel snapshots. These fields were
   rarely used, were expensive to have on the snapshot, and hurt performance.
   This included formats, translation paths, Log Call ID, callgroup, pickup
   group, and all channel variables. As a result, AMI Status,
   "core show channel", "core show channelvar", and "pjsip show channel" were
   modified to either hit the live channel or not show certain pieces of data.
   While this is unfortunate, the performance gain from this patch is worth
   the loss in behaviour.
 - It adds a mechanism to publish a cached snapshot + blob. A large number of
   publications were changed to use this, including:
   - During Dial begin
   - During Variable assignment (if no AMI variables are emitted - if AMI
     variables are set, we have to make snapshots when a variable is changed)
   - During channel pickup
   - When a channel is put on hold/unhold
   - When a DTMF digit is begun/ended
   - When creating a bridge snapshot
   - When an AOC event is raised
   - During Local channel optimization/Local bridging
   - When endpoint snapshots are generated
   - All AGI events
   - All ARI responses that return a channel
   - Events in the AgentPool, MeetMe, and some in Queue
 - Additionally, some extraneous channel snapshots were being made that were
   unnecessary. These were removed.
 - The result of ast_hashtab_hash_string is now cached in stasis_cache. This
   reduces a large number of calls to ast_hashtab_hash_string, which reduced
   the amount of time spent in this function in gprof by around 50%.

#ASTERISK-23811 #close
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/3568/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@416216 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2014-06-13 18:24:49 +00:00