Pull request 1744: 1472-edns-custom-ip

Merge in DNS/adguard-home from 1472-edns-custom-ip to master

Updates #1472.

Squashed commit of the following:

commit 07460c3adf7747fd9ec1b4a3d04fb459dec44280
Merge: 65455430 ae653f16
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Mar 1 15:38:46 2023 +0300

    Merge branch 'master' into 1472-edns-custom-ip

commit 65455430993e4a62c49e1f45def909b0a135af3b
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Mar 1 15:37:17 2023 +0300

    dnsforward: add todo

commit e1978ad4b6051f29185ef32973d20bc70f2a6634
Merge: 6cd98f42 bb226434
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Mar 1 11:32:23 2023 +0300

    Merge branch 'master' into 1472-edns-custom-ip

commit 6cd98f4235b1b52d443c1950f2516af3cc4fb258
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Mar 1 11:31:16 2023 +0300

    all: fix chlog; fix field alignment

commit defdec623919c23ab446324828d08839469669e1
Merge: 1130ebd5 a772212d
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Feb 28 12:17:23 2023 +0300

    Merge branch 'master' into 1472-edns-custom-ip

commit 1130ebd509bf4f7ec25fbb53717576e273dbfff2
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Feb 28 12:13:30 2023 +0300

    all: add use_custom field

commit ec0cdc7af0f96f761ed85516bbcae2567fd6f7d2
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Feb 27 13:59:13 2023 +0300

    all: fix chlog; imp code

commit f8450cfcd6054f32d6ea0a5e26c551fe153a0b21
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Feb 27 11:28:16 2023 +0300

    dnsforward: fix fmt

commit 54a344e5bb17aae7ca213ed66b85f06ef6585316
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Feb 27 11:11:52 2023 +0300

    all: fix chlog; add test case

commit 47b5476f6621c6ea31aa496d4113445a8e8bceb4
Merge: 8724f374 304f2ba2
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Feb 22 16:33:07 2023 +0300

    Merge branch 'master' into 1472-edns-custom-ip

commit 8724f3745ccc29849a4001f79b055c7ebeb19106
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Feb 22 16:31:40 2023 +0300

    all: fix comments

commit d2b1528ba333e7669795a3fb80355ff7d90cf4f5
Merge: 7898c23a 76a513cd
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Feb 22 11:53:25 2023 +0300

    Merge branch 'master' into 1472-edns-custom-ip

commit 7898c23ab991bc516bcc2f41e47bed15582fd962
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Wed Feb 22 11:52:37 2023 +0300

    all: upd chlog

commit 8763261dcb4187a93104955e7cb440965e2b6739
Merge: d28394b3 ff9b24ad
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Feb 21 17:12:03 2023 +0300

    Merge branch 'master' into 1472-edns-custom-ip

commit d28394b3c980b10f28c6c38ce35f368edb11d314
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Feb 21 17:11:29 2023 +0300

    home: fix default value

commit 1a5da3f267706baa83eebe1923ea1b0b4e79fd6c
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Feb 21 13:37:04 2023 +0300

    all: add custom ip for edns

CHANGELOG.md

@@ -25,9 +25,43 @@ NOTE: Add new changes BELOW THIS COMMENT.
 
 ### Added
 
+- The ability to set custom IP for EDNS Client Subnet by using the new
+  `dns.edns_client_subnet.use_custom` and `dns.edns_client_subnet.custom_ip`
+  fields ([#1472]).  The UI changes are coming in the upcoming releases.
 - The ability to use `dnstype` rules in the disallowed domains list ([#5468]).
   This allows dropping requests based on their question types.
 
+### Changed
+
+#### Configuration Changes
+
+In this release, the schema version has changed from 16 to 17.
+
+- Property `edns_client_subnet`, which in schema versions 16 and earlier used
+  to be a part of the `dns` object, is now part of the `dns.edns_client_subnet`
+  object:
+
+  ```yaml
+  # BEFORE:
+  'dns':
+    # …
+    'edns_client_subnet': false
+
+  # AFTER:
+  'dns':
+    # …
+    'edns_client_subnet':
+      'enabled': false
+      'use_custom': false
+      'custom_ip': ''
+  ```
+
+  To rollback this change, move the value of `dns.edns_client_subnet.enabled`
+  into the `dns.edns_client_subnet`, remove the fields
+  `dns.edns_client_subnet.enabled`, `dns.edns_client_subnet.use_custom`,
+  `dns.edns_client_subnet.custom_ip`, and change the `schema_version` back to
+  `16`.
+
 ### Fixed
 
 - Various dark theme bugs ([#5439], [#5441], [#5442], [#5515]).
@@ -37,6 +71,7 @@ NOTE: Add new changes BELOW THIS COMMENT.
   been relaxed to meet those from [RFC 3696][rfc3696] ([#4884]).
 - Failing service installation via script on FreeBSD ([#5431]).
 
+[#1472]: https://github.com/AdguardTeam/AdGuardHome/issues/1472
 [#4884]: https://github.com/AdguardTeam/AdGuardHome/issues/4884
 [#5270]: https://github.com/AdguardTeam/AdGuardHome/issues/5270
 [#5373]: https://github.com/AdguardTeam/AdGuardHome/issues/5373
@@ -129,6 +164,7 @@ In this release, the schema version has changed from 14 to 16.
     'file_enabled': true
     'interval': '2160h'
     'size_memory': 1000
+    'ignored': []
   ```
 
   To rollback this change, rename and move properties back into the `dns`