Support is desired for Kamailio/Rtpengine traffic via UDP.
Adding homer-disable-rtcp-stats and homer-enable-ng config params to
separately control sending to Homer each traffic type. By default rtcp
is `on` when homer parameter is configured. NG is by default disabled.

closes #1802

Change-Id: Ib68fb133cffc5d8945f9b6bf60bab3e80fab9630

For convenience we provide extra HTTP and WS endpoints that accept a
cookie-less NG or JSON message string. Not all commands are sensitive to
retransmits and this makes it easier to query call status etc.

Change-Id: Iffbc4ef9a5fdf916a374dfdd4042c61b437d18c9

Graphite isn't able to deal with spaces in the metric names delivered to
it. Introduce special version of the command strings with spaces
replaced by underscores.

closes #1780

Change-Id: Ie8bcec5ca4f2d427e92901f6fa76b985df6e459e

Change-Id: Ic79f4380dcb7cbf23b35ca1bfec70c1986ac4477

Change-Id: I278cb1b81d9c23074cf159901668221f52d239dd

UDP packets sent in response to a UDP request should have the same
source address as the request's destination address.

This can be achieved with sockets bound to a specific address, but in
the case of ANY-bound sockets, we can use the PKTINFO mechanism to do
this.

Extend control_ng_process() to accept an extra socket address
corresponding to the local address to use. Extend the signature of the
callback function (to do the actual sending) accordingly.

Extend socket_sendiov() to be able to set the PKTINFO cmsg when sending
a packet.

Add socket_sendto_from() as a convenience wrapper.

Extend control_udp_incoming() to pass the address from
udp_buf->local_addr back to socket_sendiov().

Change-Id: Idd019fdcfd796098e7807427e6686d4b05de35d1

All functions that create listener objects take a read-only endpoint, so
make them as const.

Remove the extra TOS argument to make all signatures the same.

Change-Id: I722c7665b192476d90dbf0ece200d0bfd34cb9eb

We have long switched to having a single primary global poller, so
there's no point in passing the poller pointer around and storing it in
associated objects. Remove all remnants of non-global pollers.

Change-Id: I5a3fd217d5de51e839e2b04fec7e23643ee83631

Auto-cleanup wrapper for struct ng_buffer

Change-Id: I4aab4efb9b10d6380b0ef9f3f854130cee03d792

Change-Id: I3650e847813964fde75d10790864eb2e6c4c265b

This doesn't do anything at all

Change-Id: I4b71debe67c589034c832944c4888bbba4a8d809

Change-Id: Iaffb2120be0ad4b7241913aacd7e7e68c9e666d2

Handling of dual stack v4/v6 was previously done by the individual
listener objects for INADDR_ANY listening addresses. If listening on
INADDR_ANY was requested, then each listener would create two instances,
one for IPv4 and one for IPv6. This works fine for INADDR_ANY but fails
for listening on host names that resolve to multiple addresses, such as
`localhost`.

Solve this by relieving the listener objects from handling this and
instead handle it in the code setting up the listeners. If a host name
resolves to multiple addresses, then set up multiple listeners (up to
two supported currently). This allows us to listen on `localhost` by
default and have both 127.0.0.1 and ::1 active. INADDR_ANY is handled
specially by also setting up :: in that case.

Change-Id: I2a1e1d7090d7d23863c7a9bb1e89b85ad2ea44f4

Change-Id: I2507b1bb22d4ba10f632fe2fa794fde975734f99

Change-Id: Icf3e0648a0ba821bc66c6dd0e8f5ebc30576fb70

Change-Id: I13cc172b082e78c3d52032bd72e0a2f5158c71ed

Change-Id: I1842b89efea7fa3af0bd4d045e49da31285cd0e1

Change-Id: I0902bd72e2733b96ff75bcf52856a58c51a750f6

closes #1180

commit 023f6cbc9e
Merge: ae82034d 86e287d1
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Feb 1 11:16:04 2021 -0500

    Merge branch 'control_ng_tcp' of https://github.com/enreached/rtpengine into enreached-control_ng_tcp

    Change-Id: I628dcfd30e901dbee97b00bee0b6bba0cb29826f

commit 86e287d117
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 16:38:53 2021 +0100

    Update the readme file.

commit 35f5d9e151
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 16:20:09 2021 +0100

    Update docs.

commit 336deb4c67
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 14:28:07 2021 +0100

    Replace hex values with chars.

commit 37c86a8fa0
Merge: 17a10b96 5cd53ef1
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:51:06 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit 17a10b96ad
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit adfddefae3
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit 5cd53ef1c9
Merge: 1bd3a8fc b28ab075
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:49:50 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit 1bd3a8fc6d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jan 29 10:20:02 2021 -0500

    TT#14008 fix AEAD kernel API for < 4.2

    Untested whether it actually works

    closes #1176

    Change-Id: If6398632ac62525a673b844cfb4ce842a8aa0346

commit 71a222d7a8
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jan 29 13:07:25 2021 -0500

    TT#14008 improve log output for stray packets

    Change-Id: Ic4b03928b279aade761de3ba1646b5c27318e6a3

commit b28ab07532
Merge: 813a4f1c 6e4373af
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 09:21:31 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit 813a4f1caa
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit 0c87a19c55
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit 6e4373affb
Merge: fbf74bfe 7799f23a
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 09:19:46 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit fbf74bfe2d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jan 27 10:18:14 2021 -0500

    TT#14008 fix possible segfault

    closes #1172

    Change-Id: I94bb52c290c2032073e54528283660f03e694033

commit 1a5bcc0905
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 14:49:43 2021 -0500

    TT#109251 fix redis restore segfault

    Change-Id: I501a47b065e7b8ff28a3ac157c0ce567f228557f

commit b38b49fd60
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 13:44:44 2021 -0500

    TT#102450 added tests for Ia9fa96cf

    Change-Id: Ic9728e12a012335c30c5640ac0b5c88e39ad24ed

commit f33877bfe3
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 13:43:46 2021 -0500

    TT#102450 fix some timestamping issues

    Make sure G.722 rate multiplies is applied in the right places

    Don't trust encoders to return proper timestamps, but instead track them
    explicitly based on frame duration

    Change-Id: Ia9fa96cf662da97159fa170c3a3f37516889e1bd

commit 39a25b954d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 14:07:53 2021 -0500

    TT#106101 mem leak fix for 554034eb7e

    Change-Id: I9c410211580d8513a203a29f898970a78175d08b

commit 11d11aed90
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jan 28 13:41:28 2021 -0500

    TT#14008 clean up some tests

    Looks like packet order can be an issue in some cases

    Change-Id: Ib8fb8c553c9d0f2919b24dda1e15e5a23832c619

commit 7799f23aa5
Merge: ba7ee9d6 e191e16c
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 09:18:24 2021 +0100

    Merge branch 'master' of https://github.com/sipwise/rtpengine into control_ng_tcp

commit ba7ee9d6b1
Merge: f805d881 ffe187f1
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:15:58 2021 +0100

    Merge branch 'control_ng_tcp' of github.com:enreached/rtpengine into control_ng_tcp

commit f805d881fa
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit c548a3ca4b
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit ffe187f116
Author: Damir Nedžibović <damir.nedzibovic@bad-team.net>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

Change-Id: I2acf208fcff1fa9aa790c31f1097ad9b4b7c3238

Change-Id: I81fa68b07af3a87e26d031a5722dcd103a1e620e

Change-Id: I6d8e443d8b0fc7e9afe0a6f6b3cde3d1a85e42de

Change-Id: Ic55b42a707e430a61c0422c65827ed2145511586

Change-Id: If00eede6803d9618c32dccbdcf82f5e41b64b2bf

Change-Id: I8aa5275ffb4d53bb959acd6a8329e5a31f099000

Change-Id: I64a38869ce3120d066fc818e3c76941a1c8186b7

closes #992
Change-Id: I73284b8da6bc64c6e801f47cf6e00e52235b65ba

Change-Id: I07aa7690146db5b41be479a67aaafbd66aec4033

Change-Id: I1b18a41d4b97ccbb83499873e50a797f846a8602

Change-Id: I8212f5c74bcb9557d41f80ef3a1595f53bafde8a

commit 2029144368
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Feb 21 13:12:50 2019 -0500

    TT#52651 switch TCP to TLS

    Change-Id: Iab6b05d3b5c88553cbd6f531f3189084d9e71995

commit b28e718ee4
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Feb 22 09:20:54 2019 -0500

    TT#52651 generalise streambuf interface

    Change-Id: I7d5ab8ffe13e52d4dbb1901531cc13fcc173d60d

commit cb2dbd2a92
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Feb 19 09:32:56 2019 -0500

    TT#52651 add start/stop forwarding commands and party selection logic

    Change-Id: I8ef7e288d3a3e485bd2fa14e1a2407a0c8d94bac

commit 442c48f627
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Feb 14 15:43:23 2019 -0500

    TT#52651 produce output for TCP forwarding feature

    Change-Id: I18543921577faf655679829684f5af46c0af5054

commit 2ef8028eb2
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Feb 14 10:18:21 2019 -0500

    TT#52651 make recording to output files optional

    Change-Id: I12c288b965641352658ce3b499c2ee90593e1322

commit 10a58cd7a0
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Feb 13 16:02:16 2019 -0500

    TT#52651 strip streambuf into lib and include in recording daemon

    Change-Id: I1f6638961e9e767063e0b4e6b5d55d88799366d3

commit 9d3bb5bffc
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Feb 13 15:40:12 2019 -0500

    TT#52651 extract/move unrelated old legacy decoder struct members

    Change-Id: Iffd79b43180c30a9e128a460f7ba85ba49dedeaf

commit 1bc38e4201
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Feb 12 16:43:42 2019 -0500

    TT#52651 config options for forwarding option

    Change-Id: Ieaa2ee0e55a0c531158174bc6a534738a64dbee6

commit 06d61cd3dd
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Feb 12 16:29:52 2019 -0500

    TT#52651 move socket.[ch] into lib/

    includes necessary re-shuffling of additional code pieces

    Change-Id: I74b314ab5936ac8a0eeaff94e084617b59b28d79

Change-Id: I025e8ec86b90ede79565542dff57ec1559d04200

Change-Id: I336cf7203c1236b3e596310690a89ce1c3fd8bf4

Change-Id: I7ef43ddb254b1583c2dc69b44a13b978eff15510

Change-Id: If48e5afe5a343b557183b6e87441f52424dd2c6a

Also fixes logic for other resource limits

Change-Id: I263e097da5b5671826e0d92a28fb3a5c6f3ac193

Change-Id: Ia0c605d17866c232353917f2980637fa7823dce4

Change-Id: I3f3897794050e0807f3cddb8044b3aa37b703d9c

Change-Id: I9151dbe8f47b3bb9ab67d6fea2fc3783bdc558da

Change-Id: I138ca8756dfc576451bc7c3fca1db89d6616fb1e

Change-Id: I402d36637235ba0cc03e77d426f4dd9cbc4722a9

Squashed commit of the following:

commit 1af3efd464
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Nov 7 11:10:22 2016 -0500

    save and restore call recording status to/from redis

    closes #254

    Change-Id: If3cd34fcfd64fa8164521a86eb1d1aa0eb327f3b

commit 460053a231
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Nov 4 14:09:08 2016 -0400

    restore libcurl build dependency

    Change-Id: Ia853f928caf9e443bb69c4015cbba805e6d24153

commit 5f5fd88fde
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Nov 4 11:22:27 2016 -0400

    ensure we are always decrypting SRTP when recording

    Change-Id: I2b75afefcadc55ebf1bf6a19a983134c87c41602

commit 69b4e9fa88
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Nov 4 09:56:47 2016 -0400

    remove redundant ng result=ok logic

    Change-Id: I84d7245f52dc12a4002b4dd2b736afea9ae733fa

commit 411213dd3d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Nov 3 16:04:54 2016 -0400

    support the `start recording` command message

    Change-Id: I316e90fd3fe34f01b20826936ef620bcff785397

commit ae1910c68d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Nov 3 15:01:57 2016 -0400

    move logic for `record call` flag to where it belongs

    Change-Id: I65a3b5d62f4360df4251faea1339b5a6355c0e6d

commit 217008d572
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Nov 3 12:49:48 2016 -0400

    support combining streams into one pcap in reference scripts

    Change-Id: Id82936ae7ef1b406acf3b4d3429ecc1cb6e2356e

commit 3fcafd9275
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Nov 3 11:40:00 2016 -0400

    output additional details to metafiles

    Change-Id: I0539a0617aff51c9c499bbd9586d61c7e7ca7e7c

commit e81f413f3b
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Nov 2 16:18:28 2016 -0400

    globalize kernel access variables

    Change-Id: Ie07e0ebb8705189c8b1e49f596080ff8bcaef64f

commit 5e74609c7c
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Nov 2 12:20:55 2016 -0400

    duplicate error messages to stderr when in foreground

    Change-Id: Iaf9d8d1392946046846cb6f2c0fb928a96893911

commit 032077bed4
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Nov 2 11:38:22 2016 -0400

    eliminate dummy virtual function

    Change-Id: I7cc2596f31350bf0d39253b3bd7e9fe1cec2b92d

commit 9177effc4e
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Nov 2 11:30:58 2016 -0400

    clean up recording code related to ng interface

    Change-Id: I69c6d953f8467e5154f000979c94f2dc3a79918a

commit ac0ec6a5e7
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Nov 2 10:57:15 2016 -0400

    output before/after sdp to metafiles

    Change-Id: I1d3177e40591d6b4c4789eb6e18132743a9eda45

commit 68b27fa964
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Nov 1 15:40:20 2016 -0400

    fix header length problems

    Change-Id: I896453f72df3ba146251f5d82ca1d02dd0ad08e9

commit ebbd942ad0
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Nov 1 14:14:08 2016 -0400

    support writing pcap files in reference intercept script

    Change-Id: I53502ba416426e9012a68c35cdf4b457d7c3eb69

commit fe82efa40a
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Nov 1 13:35:47 2016 -0400

    ensure we never make any calls that might sleep when holding locks

    Change-Id: I1ce6aeced1f61715374b80f6fb1fbeafc987ae7f

commit be5316e804
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Nov 1 13:08:19 2016 -0400

    fix math in auto_array_find_free_index

    Change-Id: I39c786b03dbafe59b88a1945ac27964c3852c9eb

commit 183d4939ca
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Nov 1 11:41:47 2016 -0400

    adding rudimentary lock debugging

    Change-Id: Iff541c58e5ea4c3fc2ec16e93396148f935bc4f3

commit 51a75c5022
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Oct 31 14:35:17 2016 -0400

    handle read errors in reference intercept script

    Change-Id: I047d763dbd498026a0d8db24c5532155c75fd6e6

commit 69a460de08
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Oct 31 14:34:54 2016 -0400

    changed locking semantics to avoid proc_clear deadlock

    Change-Id: I70dbc07aa8af7b9860beca86b4b82d8180d8a0ae

commit 62eae1459a
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Oct 31 12:50:26 2016 -0400

    additional debugging

    Change-Id: I81c93c2dd9007ed6a0d6e0b147de0deb44b7b023

commit fd36794740
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Oct 28 12:07:25 2016 -0400

    adding reference implementation using inotify

    Change-Id: Ibec73bdc4c7a576e4beaf5e749567dd2508be4df

commit f8fde6cc73
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Oct 27 15:55:10 2016 -0400

    add stream info to metadata files

    Change-Id: I200df14a3e35c2c0077866444b96692de4303761

commit 5a8b4dd156
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Oct 27 14:47:49 2016 -0400

    pass intercepted packets to kernel and tie in kernel idx

    Change-Id: I33ff297c4a66276b05d0e5d537b0281f27116243

commit 0c0b97ea39
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Oct 27 12:29:02 2016 -0400

    abstractize fake packet header and support ipv6

    Change-Id: I6c1ad1cccad306f3d306fb3387efcb033a3574b2

commit e1b648b9ba
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Oct 27 09:32:40 2016 -0400

    support creating kernel intercept streams

    Change-Id: I1f9bdda61af52814f07f765a8b558a7491cfc0b9

commit b6737ec963
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Oct 26 14:46:13 2016 -0400

    get rid of call->record_call flag

    Change-Id: I04dcba49b07fc669b0bb4bcea8ccc2b52cb76e02

commit 6ed362c120
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Oct 26 12:53:04 2016 -0400

    add recorded call to /proc

    Change-Id: I1fe64b9fb8fe3604bb7d432899c43e3e37ea6a4f

commit 62d2508ecf
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Oct 26 10:10:05 2016 -0400

    simplify some code

    Change-Id: I2a27400e91f58aa8ea20d3e610a7509d2e9a0dfc

commit 0c811a8e91
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Oct 25 16:12:59 2016 -0400

    create separate ../tmp recording dir and clean up duplicate code

    Change-Id: I94e0c19a1e8fed5a30212b79930987333f5e6786

commit 16592a9230
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Oct 25 11:26:54 2016 -0400

    remove explicit libcurl dependency

    finally properly fixes #251

    Change-Id: I3feafe2d0086f6dd789175e6ec0079c54edd487a

commit c78ac5bbb7
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Oct 25 10:48:50 2016 -0400

    abstractize recording cleanup routine

    Change-Id: Ib9fc46542f273bab53f611a1456f02d67edfc966

commit d8358c9a2c
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Oct 25 10:07:44 2016 -0400

    use shorthand for function pointers

    Change-Id: Idf43949e20281a10317e22a5b68a6d133e398bd4

commit 9417437c10
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Oct 24 15:31:56 2016 -0400

    abstractize individual recording functions

    Change-Id: I0974696b6bb361fce39b24d6be91b5c052ee2b14

commit eb631cd876
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Oct 24 11:54:42 2016 -0400

    abstractize call recording mechanism

    Change-Id: If8672051227944544d9cf916d359c5db67235e3e

commit 70797ceb8f
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jul 14 11:25:05 2016 -0400

    combine two mallocs into one for user-generated packets

    Change-Id: I585d129f10d379a5cb853382773f91a7cec9a98d

commit f62f71cee4
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 13 14:22:18 2016 -0400

    check for and avoid /proc file name collisions

    Change-Id: Ie9eb9ceef8f32de8aba816f0121e768c57fa7402

commit ec6b3d22fc
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 13 11:02:04 2016 -0400

    implement free list

    Change-Id: I3e7dc2325c937923d19ce6000f2cf1c011e51037

commit bd75a1cf25
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 13 09:30:36 2016 -0400

    make number of packets retained per stream configurable

    Change-Id: If1c87f80dd7367cbc274d13c15f94836ef9c8cb1

commit de259c3d64
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Jul 12 15:15:01 2016 -0400

    facilitate passing packets from kernel module out to userspace

    Change-Id: I2317a007084a1718e185ba04632c53a9ebe5f29d

commit 3aa88716fb
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Mon Jul 11 10:45:10 2016 -0400

    restructure calls and streams to global arrays

    Change-Id: Icfca615b21f2e51b1abda4422c4eeb8f4ac70a9b

commit 6cf9980f3e
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jul 8 11:53:32 2016 -0400

    implement poll/select mechanism

    Change-Id: Ic10c017250f0991f691a887b078e80f694bba853

commit d95829e07b
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jul 8 10:44:38 2016 -0400

    discard new/old packets as required

    Change-Id: If73ce77dcbc24addb6ce0931b90de0f5efae9f51

commit be1d769e44
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Fri Jul 8 10:25:38 2016 -0400

    implement EOF for stream readers

    Change-Id: I858dc1fdd7df3b65283e1d96457d87e7452840f5

commit ed2d98d55a
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jul 7 15:02:58 2016 -0400

    blocking and nonblocking reads - incomplete

    Change-Id: I7cbfb09507ad8726773d6a28ddb98d5981decd04

commit 246709c7f4
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jul 7 13:55:41 2016 -0400

    rudimentary packet reading/dequeuing

    Change-Id: I1a924e5cb2ef4e4f16aeff1f1dd90d0746f91da5

commit 4277493949
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jul 7 12:40:31 2016 -0400

    use kzalloc where appropriate

    Change-Id: Icd6a109a69ab4f6dc9f7d35fd9e8fc9127f8e7e0

commit 5b07819217
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jul 7 09:07:54 2016 -0400

    more module referencing

    Change-Id: I2e34fe74f2edef9170a4558f6a24394240966d79

commit 1d8268f636
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 6 14:56:42 2016 -0400

    store delivered packets in queue

    Change-Id: Id349b75e06f9dd77c884196b7726027ac5cab7ae

commit 23c6a53f94
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 6 14:21:27 2016 -0400

    implement call for packet delivery

    Change-Id: Ibeb815bf2fedfdd644d324c65b58a24871d47d4a

commit c8fd855f32
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 6 10:28:18 2016 -0400

    automatic cleanup of objects upon free/delete

    Change-Id: If244905e2d074f491229316f3305c9b0b1451792

commit 282ef603a8
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jul 6 09:47:29 2016 -0400

    unify read/write functions

    Change-Id: I78b0dd05cd730e16655034994c74cbe23be23fce

commit e74c62cc6f
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Jul 5 15:36:00 2016 -0400

    rename _push to _put and _hold to _get

    Change-Id: I9b0ff5038b541bd3cfb961657c15a26f26ccdfb2

commit d71ce17529
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Jul 5 15:33:07 2016 -0400

    support creation and deletion of streams

    Change-Id: I7df05d232b5971c54ca50adce8144b5f1646fba0

commit 8be4e2c7c4
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Tue Jul 5 11:54:39 2016 -0400

    create functions for redundant code

    Change-Id: Id3772f12294ee9891d22d833274e5935814cae0b

commit 47ce4ca8f5
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Jun 30 12:12:19 2016 -0400

    support creation and deletion of calls objects

    Change-Id: Ie5f9aa978bac21fc30909f14d6a438494848dfd5

commit 8dab54209d
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jun 29 14:20:23 2016 -0400

    create /proc/.../calls directory

    Change-Id: I682a4bf23edbb72772d64963e3ba2cab2a521ff4

commit 1401ae8db5
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jun 29 14:02:11 2016 -0400

    rename kernel message enum

    Change-Id: I45d7aeae43df1fe6ecd6b6965dbd6ba7e7b715d8

commit ce44ff0dbe
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Wed Jun 29 14:00:32 2016 -0400

    convert kernel message data to union

    Change-Id: I7cfd9fe81623efae0a828ba457aa0a4b1380ff03

Change-Id: I4bb0b7f6d29c1c7a2144e4735ed59f3dc0e37094

This brings master up to date with branch `rfuchs/socket-rework` at
commit `b1bcc096b7`. The branches have diverged too much for a proper
merge, so this is a manual (squashed) merge.

The old master before this merge can be found in branch
`old-master-before-socket-rework` (commit `82199216b2`).

This is a complete rewrite of all socket handling routines. The most
important functional change is that sockets aren't indiscriminately
bound to INADDR_ANY (or rather in6addr_any), but instead are always
bound to their respective local interface address and with the correct
address family.

Side effects of this are that in multi-homed environments, multiple
sockets must be opened (one per interface address and family) which must
be taken into account when considering RLIMIT_NOFILE values. As a
benefit, this change allows rtpengine to utilize the full UDP port space
per interface address, instead of just one port space per machine.

The socket abstraction also makes it possible to support RTP over TCP in
the future.

Change-Id: If6cf4f42136229490186d2d2482fb4fc140c2b53

Seen by using 'rtpengine-ctl list totals'