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

Allow usage of "any" as interface config option to configure any and all
locally present network address, except loopback. This allows us to ship
a working default config file.

Change-Id: Ic13efd5f668e3bb317948b226c5700331f95a708

Change-Id: Ie75e9ebb315801157e432b2d0ce6a07c61cdd0d0

Change-Id: Ie1ef9bbfe6faaf9fa7ed163d51475f6f353309df

Change-Id: I0a6d5fc93c5fa505390408043feeca3f5cf61181

Change-Id: Ib8fea31c49013cbb62056c5980ee5aa3655db6d6

Change-Id: I8017929519cc3b721272cc122bee4fdc36c7317a

Change-Id: If8d5e28db534e6aeaaffb885e732e2bdd7338831

This makes it possible to use buffers returned by GString
interchangably.

Change-Id: If15a5c0be2743dde7230b2f3d3ca6780d633622b

Change-Id: Iab858cd6df96b26c143292019a78ef07defbb868

Change-Id: I2cacceda1f910fb2ed74ccd9f17cde1bf50031b0

Change-Id: Ica4a3e4ef58eadf3feca44ea63f2308103b3146f

Some codec handlers hold references to objects held within the
statistics hash table, therefore we must free the statistics after all
codec handlers have been released.

Change-Id: I3832dbeeaaf21d4a82be2dc2c842718415fd46f7

Change-Id: I0504d452737573f388941dcca507e3adfd5744c6

Change-Id: I2aa9901b2a9dcf64563a84d77fa40d23b6c25525

closes #1257

Change-Id: I299475a01470cc9d4910d9d304bdda9bbbee6e83

Change-Id: Ibff3f9484c988f194436479a137baeb583522931

commit fd25c8e281
Author: Tinotenda Chingosho <tinochingosho@googlemail.com>
Date:   Tue May 11 12:03:55 2021 +0100

    Address review comments

    - update typo
    - document new parameter

commit e4e106f423
Author: Tinotenda Chingosho <tinochingosho@googlemail.com>
Date:   Mon May 10 16:18:57 2021 +0100

    Support Configurable MTU

    - default to 1200
    - minmimum value 576

Change-Id: I6cbc03eb7f8198a211d70844c115d162d954dea8

This makes the type in line with string(3) functions and eliminates some
compiler warnings.

Also update the related bencode data type.

Change-Id: I7ef4024f4b5a0f737b3dbe03bcd078032395bce6

Change-Id: I713d7e8ba0a7d14f5ef9016d33619df91ce6ec32

closes #1246

Change-Id: I5fc5ebd462589f0f585b8afce4908a6ac4a94bbb

Change-Id: I6641da426f1e05f0d0e3924887baf7fb948fb0c9

Change-Id: Icddeb28cab72974d9dad0a241775a0763a56b027

Change-Id: Ib6bfdfb9d1967263dc8acb48a812d7e75f9c239b

commit b3d2d70d4c
Merge: 1e62cbbb eacd2634
Author: Richard Fuchs <rfuchs@sipwise.com>
Date:   Thu Mar 4 11:36:26 2021 -0500

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

    Change-Id: I30690cf4955c04238c359e4aca2d0fea36ebfd36

commit eacd2634e8
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 16:56:07 2021 +0100

    Update docs with --poller-per-thread option.

commit 7d02539673
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 16:47:55 2021 +0100

    Prevent mem leak.

commit 3510a5d021
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 13:25:39 2021 +0100

    Make poller per thread functionality configurable.

commit a2142b2a5e
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 11:57:18 2021 +0100

    Use pthread_self() instead of syscall(SYS_gettid).

commit 2e471cae40
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 11:46:44 2021 +0100

    Refactor the code a bit.

commit 91f72455c9
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 11:21:42 2021 +0100

    Use usleep() instead.

commit 08d3bdb4ed
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Mar 4 11:03:39 2021 +0100

    Use ssl_random() instead.

commit 2d9995a864
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Tue Mar 2 15:50:13 2021 +0100

    Sleep for 20ms instead.

commit eded168a38
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Tue Mar 2 15:11:43 2021 +0100

    Implement poller per thread in order to fix packet order.

Change-Id: If652c906be8b16115eb84e749f89a2729ba75120

Change-Id: I9612d692c3c6945c93b3194760383e67e5bca0e0

closes #1141

Change-Id: I99bd0d7ecc414e2b4f6e7e3fea72aab5935f8939

Change-Id: Ifd8d1d774f55e7c58bf82c9a5f67787e02f53c3f

Change-Id: I6a5bb14c070d93b865510786f5107220b93faef1

closes #1183

commit a74cf4a7f9
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Tue Feb 2 11:06:50 2021 +0100

    Add --dtmf-log-ng-tcp CLI option.

commit a428764d9b
Merge: 2bbfcb27 8abc6b1c
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Tue Feb 2 09:16:26 2021 +0100

    Merge branch 'master' into dtmf_events_over_ng_tcp

commit 2bbfcb2750
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 14:28:07 2021 +0100

    Replace hex values with chars.

commit dc1084d122
Merge: 2bce444b 2c7163ea
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:53:27 2021 +0100

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

commit 2bce444b26
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:28:06 2021 +0100

    Prevent use after free.

commit 5a256fd3ae
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:30:31 2021 +0100

    Add missing includes.

commit a14f4034b9
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:27:27 2021 +0100

    Add support for sending DTMF events via protocol NG TCP.

commit b861fe3087
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:09:10 2021 +0100

    Add missing include.

commit 7bfe08fb08
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Thu Jan 28 18:05:44 2021 +0100

    Implementation of control-ng via TCP.

commit 2c7163eaf3
Merge: fd286813 9165bf1f
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:49:00 2021 +0100

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

commit fd28681350
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 0626dcdd96
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 8fcccb77cc
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:28:06 2021 +0100

    Prevent use after free.

commit f0d90d1831
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:30:31 2021 +0100

    Add missing includes.

commit 37462b8e4d
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:27:27 2021 +0100

    Add support for sending DTMF events via protocol NG TCP.

commit 9165bf1f75
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Mon Feb 1 13:28:06 2021 +0100

    Prevent use after free.

commit d616f2941f
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:30:31 2021 +0100

    Add missing includes.

commit bb063386c6
Author: Damir Nedžibović <damir.nedzibovic@enreach.com>
Date:   Fri Jan 29 13:27:27 2021 +0100

    Add support for sending DTMF events via protocol NG TCP.

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: I8383fa80bce59aa865009e34caff5263b97ab588

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

When set to `false`, no changes at all. (default)
When set to `true`, bind only one desired family local address.

Also add info in rtpengine.pod file.
Also add log for sfd with no call.

Change-Id: I93587b6675540438f81193896ae8d8966b3a12a6

closes #1162

Change-Id: I02b81a6f9d9fd6910ce6ed2995bfba16d59b027e

Change-Id: Ife458bd2449f61113a3e6db1708821570d92dc23

Change-Id: I14940fcabdef475ed5dbe74d9af7ebc2af10311b

closes #1109

Change-Id: I8f77ebfd4ffd960d59c9d20e2b1b62a3961525ca

Change-Id: I6fba28b985ff63de6185dccc2ca16f4264a0493d

Change-Id: I418c43e0cef2a70143010235988523f195a3bf5a

Change-Id: If50d2d42ce918961588dfc79793a26ba15416991

Change-Id: I30ca16313ee8039b51797b60955265fb4a7545a1

Change-Id: Iac082cda84c62be4a340448ef7c97c2f94e2992f

Change-Id: I8aa5275ffb4d53bb959acd6a8329e5a31f099000

Change-Id: Ib2e7c87913abd4f89aa43075fe7cd9fb4d7cf1f7

Change-Id: I03e3368fe569716d3309cf012ba39bdb2cbe0b35

closes #969

Change-Id: I3712a0977700719765bbd45985306e598067c0af

Change-Id: Id48ca4c25fee57cafe1270e2ded22fc610b510d1

Change-Id: I670d3de35117047c285552879debc24df3a983a3