chan_dahdi: enable ignore_failed_channels by default

If ignore_failed_channels is set to "true" for a channel, the channel
will continue to be configured even if configuring it has failed.

This allows Asterisk to start before all the DAHDI initialization is
done and thus not force the starting order dahdi -> asterisk.

Review: https://reviewboard.asterisk.org/r/3063/
res_pjsip_pubsub: Ensure dialog manipulation happens on proper thread.

When destroying a subscription we remove the serializer from its dialog
and decrease its reference count. Depending on which thread dropped the
subscription reference count to 0 it was possible for this to occur in
a thread where it is not possible.

(closes issue ASTERISK-22952)
Reported by: Matt Jordan
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Merged revisions 404553 from http://svn.asterisk.org/svn/asterisk/branches/12
http: Properly reject requests with Transfer-Encoding set

Asterisk does not support any of the transfer encodings specified in
HTTP/1.1, other than the default "identity" encoding.

According to RFC 2616:

   A server which receives an entity-body with a transfer-coding it does
   not understand SHOULD return 501 (Unimplemented), and close the
   connection. A server MUST NOT send transfer-codings to an HTTP/1.0
   client.

This patch adds the 501 Unimplemented response, instead of the hard work
of actually implementing other recordings.

This behavior is especially problematic for Node.js clients, which use
chunked encoding by default.

(closes issue ASTERISK-22486)
Review: https://reviewboard.asterisk.org/r/3092/
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Merged revisions 404565 from http://svn.asterisk.org/svn/asterisk/branches/12
Added note to UPGRADE.txt about the default value of live_dangerously changing
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Merged revisions 404568 from http://svn.asterisk.org/svn/asterisk/branches/12
channels.c: core show channeltypes slicing

'core show channeltypes' type column is being sliced, resulting in incomplete
type names.

(closes issue ASTERISK-22919)
Reported by: outtolunc
Patches:
     svn_channel.c.format_15.diff.txt uploaded by outtolunc (license 5198)
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Merged revisions 404579 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 404581 from http://svn.asterisk.org/svn/asterisk/branches/12
res_pjsip_outbound_registration: Add validation for 'server_uri' and 'client_uri'.

When applying configuration for outbound registrations the 'server_uri' and
'client_uri' fields were not validated. The code will now confirm that they
exist and that they contain parseable SIP URIs.

Reported by: Andrew Nagy
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Merged revisions 404592 from http://svn.asterisk.org/svn/asterisk/branches/12
cel_pgsql: deadlock on unload and core_event_dispatcher

A deadlock can happen between a thread unloading or reloading the cel_pgsql
module and the core_event_dispatcher taskprocessor thread. Description of
what is happening:

Thread 1 (for example, a netconsole thread):

    a "module reload cel_pgsql" is launched
    the thread enter the "my_unload_module" function (cel_pgsql.c)
    the thread acquire the write lock on psql_columns
    the thread enter the "ast_event_unsubscribe" function (event.c)
    the thread try to acquire the write lock on ast_event_subs[sub->type]

Thread 2 (core_event_dispatcher taskprocessor thread):

    the taskprocessor pop a CEL event
    the thread enter the "handle_event" function (event.c)
    the thread acquire the read lock on ast_event_subs[sub->type]
    the thread callback the "pgsql_log" function (cel_pgsql.c), since it's a subscriber of CEL events
    the thread try to acquire a read lock on psql_columns

(closes issue ASTERISK-22854)
Reported by: Etienne Lessard
Patches:
     cel_pgsql_fix_deadlock_event.patch uploaded by hexanol (license 6394)
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Merged revisions 404603 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 404604 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 404605 from http://svn.asterisk.org/svn/asterisk/branches/12
res_pjsip_endpoint_identifier_ip: Accept hostnames in the 'match' field.

Hostnames specified in the 'match' field will be resolved and all addresses
returned. Each address will be added to the endpoint identifier for the
matching process.

Reported by: Rob Thomas
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Merged revisions 404613 from http://svn.asterisk.org/svn/asterisk/branches/12
chan_pjsip: Handle hanging up before calling.

Channel creation in Asterisk is broken up into two steps: requesting and calling.
In some cases a channel may be requested but never called. This happens in the
ChanIsAvail dialplan application for determining if something is reachable or
not. The PJSIP channel driver did not take this situation into account and
attempted to end a session that was never called out on.

The code now checks the session state to determine if the session has been
called out on and if not terminates it instead of ending it.

(closes issue ASTERISK-23074)
Reported by: Kilburn
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Merged revisions 404652 from http://svn.asterisk.org/svn/asterisk/branches/12
res_pjsip: add 'set_var' support on endpoints

Added a new 'set_var' option for ast_sip_endpoint(s).  For each variable
specified that variable gets set upon creation of a pjsip channel involving
the endpoint.

(closes issue ASTERISK-22868)
Reported by: Joshua Colp
Review: https://reviewboard.asterisk.org/r/3095/
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Merged revisions 404663 from http://svn.asterisk.org/svn/asterisk/branches/12
func_strings: use memmove to prevent overlapping memory on strcpy

When calling REPLACE() with an empty replace-char argument, strcpy
is used to overwrite the the matching <find-char>.  However as the
src and dest arguments to strcpy must not overlap, it causes other
parts of the string to be overwritten with adjacent characters and
the result is mangled.  Patch replaces call to strcpy with memmove
and adds a test suite case for REPLACE.

(closes issue ASTERISK-22910)
Reported by: Gareth Palmer
Review: https://reviewboard.asterisk.org/r/3083/
Patches:
    func_strings.patch uploaded by Gareth Palmer (license 5169)
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Merged revisions 404674 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 404675 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 404676 from http://svn.asterisk.org/svn/asterisk/branches/12
res_pjsip_outbound_registration: Ensure URI validation happens in a pjlib thread.

This change moves outbound registration URI validation into the task executed
within a pjlib thread.

Reported by: Andrew Nagy
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Merged revisions 404725 from http://svn.asterisk.org/svn/asterisk/branches/12
res_pjsip: Ensure more URI validation happens in pj threads.
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Merged revisions 404737 from http://svn.asterisk.org/svn/asterisk/branches/12
app_meetme: compiler warning

Fixed a compiler warning (errors in 'dev-mode') given by gcc version 4.8.1.
The one in app_meetme involved the 'sizeof-pointer-memaccess'
(see: http://gcc.gnu.org/gcc-4.8/porting_to.html) warning. Fixed so
it would no longer issue a warning and can compile again in 'dev-mode'.

Review: https://reviewboard.asterisk.org/r/3098/
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Merged revisions 404742 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 404773 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 404781 from http://svn.asterisk.org/svn/asterisk/branches/12
test_stasis.c: Fix ref leak in normal execution path.
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Merged revisions 404764 from http://svn.asterisk.org/svn/asterisk/branches/12
chan_dahdi: dahdi show channels slices PRI channel dnid on output

dahdi show channels output slices the callerid (which is dnid copied over on
PRI channels). If the channel naming structures look like:

 'DAHDI/i1/1408409XXXX-6'

then the output slices 1408409XXXX down to 1408409XXX. This patch just opens
it up to 15 chars so you can see the whole thing.

(closes issue ASTERISK-22918)
Reported by: outtolunc
Patches:
     svn_chan_dahdi.c.format12_15.diff.txt uploaded by outtolunc (license 5198)
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Merged revisions 404784 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 404785 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 404786 from http://svn.asterisk.org/svn/asterisk/branches/12
manager: UserEvent including action on output

AMI action UserEvent event response would include the action header in its
keyvalue pairs list. Adjusted the start of the header loop to skip over the
action part.

(closes issue ASTERISK-22899)
Reported by: outtolunc
Patches:
     svn_manager.c.skip_action.diff.txt uploaded by outtolunc (license 5198)
res_pjsip_authenticator_digest: Fix md5 hash buffer

An md5 hash is 32 bytes long. The char buffer must be at least 33 bytes to
avoid clobbering of the stack. This patch also fixes a potential clobbering
in test_utils.c.

Thanks to Andrew Nagy for reporting and testing this out in #asterisk-dev

Reported by: Andrew Nagy
Tested by: Andrew Nagy
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Merged revisions 404843 from http://svn.asterisk.org/svn/asterisk/branches/12
res_pjsip_logger: Add the ASTERISK_FILE_VERSION macro

Registering yourself with the Asterisk core is the nice thing to do, even
when you're a logging module.
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Merged revisions 404855 from http://svn.asterisk.org/svn/asterisk/branches/12
cel_pgsql: module not correctly reloading

Upon reload the module unconditionally "unloaded" the module (freeing memory
and setting pointers to NULL) and then when attempting a "load" if the config
file had not changed then nothing would be reinitialized.

By moving the "unload" to occur conditionally (reload only) after an attempted
configuration load, but before module "loading" alleviates the issue. The module
now loads/unloads/reloads correctly.

(closes issue ASTERISK-22871)
Reported by: Matteo
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Merged revisions 404857 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 404858 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 404859 from http://svn.asterisk.org/svn/asterisk/branches/12