Native mode of DNS encryption and SDNS stamps

[ammnt]

Prerequisites

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• [x] I am running the latest version
• [x] I checked the documentation and found no answer
• [x] I checked to make sure that this issue has not already been filed

Issue Details

• AdGuard version:
  • AdGuard for iOS v4.4.5 (990)
• Device model and storage size:
  • iPhone XR
• Operating system and version:
  • 16.2

Expected Behavior

DoH encryption works without initial resolving as bootstrap IP is predefined.

Actual Behavior

Resolving with SDNS stamps doesn't work and queries is leaked, except .arpa domains.

Additional Information

I expected that bootstrap IP server from SDNS stamp will be work just like the lines "ServerAddresses" in .mobileconfig. For example:

<key>DNSProtocol</key>
<string>HTTPS</string>
<key>ServerAddresses</key>
    <array>
        <string>8.8.4.4</string>
        <string>8.8.8.8</string>
    </array>
<key>ServerURL</key>
<string>https://dns.google/dns-query</string>

[Versty]

@ammnt Are you talking about Native implementation?

[ammnt]

@ammnt Are you talking about Native implementation?

Yes. I just to be sure that it's make sense to add SDNS stamps with the predefined bootstrap IP address if i use native mode for DoH.

[Versty]

@ammnt This behaviour will be improved in the future versions.