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Create Add-new-Secure-DNS-providers-DoH-DoT-DoQ-support #2349

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69 changes: 69 additions & 0 deletions Add-new-Secure-DNS-providers-DoH-DoT-DoQ-support
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Original file line number Diff line number Diff line change
@@ -0,0 +1,69 @@
From: Sumon Kayal <[email protected]>
Date: Sun, 21 Sep 2025 16:10:00 +0000
Subject: [PATCH] Add AdGuard, DNS4EU, and Control D to Secure DNS providers

Add three new DNS providers to Chrome's Secure DNS settings:
- AdGuard DNS
- DNS4EU
- Control D

Each provider includes DNS-over-HTTPS (DoH), DNS-over-TLS (DoT), and
DNS-over-QUIC (DoQ) endpoints. POSIX fallback IPs are also registered.
CleanBrowsing is intentionally excluded.

Signed-off-by: Sumon Kayal <[email protected]>

diff --git a/components/secure_dns/secure_dns_config.cc b/components/secure_dns/secure_dns_config.cc
index 1234567..abcdef0 100644
--- a/components/secure_dns/secure_dns_config.cc
+++ b/components/secure_dns/secure_dns_config.cc
@@ -XX,6 +XX,25 @@
// Add AdGuard DNS provider
providers_.push_back(
{base::ASCIIToUTF16("AdGuard DNS"),
{"https://dns.adguard-dns.com/dns-query",
"tls://dns.adguard-dns.com",
"quic://dns.adguard-dns.com"},
{"94.140.14.14", "94.140.15.15"},
SecureDnsMode::kAutomatic});
+
+ // Add DNS4EU provider
+ providers_.push_back(
+ {base::ASCIIToUTF16("DNS4EU"),
+ {"https://doh.dns4eu.org/dns-query",
+ "tls://doh.dns4eu.org",
+ "quic://doh.dns4eu.org"},
+ {"193.110.81.0", "185.253.5.0"},
+ SecureDnsMode::kAutomatic});
+
+ // Add Control D provider
+ providers_.push_back(
+ {base::ASCIIToUTF16("Control D"),
+ {"https://freedns.controld.com/p1",
+ "tls://freedns.controld.com",
+ "quic://freedns.controld.com"},
+ {"76.76.2.1", "76.76.10.1"},
+ SecureDnsMode::kAutomatic});

diff --git a/net/dns/dns_config_service_posix.cc b/net/dns/dns_config_service_posix.cc
index 7654321..fedcba0 100644
--- a/net/dns/dns_config_service_posix.cc
+++ b/net/dns/dns_config_service_posix.cc
@@ -XX,6 +XX,14 @@
// Add AdGuard DNS servers to the list of known DNS providers
config->nameservers.push_back(
IPEndPoint(IPAddress(94, 140, 14, 14), dns_protocol::kDefaultPort));
config->nameservers.push_back(
IPEndPoint(IPAddress(94, 140, 15, 15), dns_protocol::kDefaultPort));
+
+ // Add DNS4EU servers
+ config->nameservers.push_back(
+ IPEndPoint(IPAddress(193, 110, 81, 0), dns_protocol::kDefaultPort));
+ config->nameservers.push_back(
+ IPEndPoint(IPAddress(185, 253, 5, 0), dns_protocol::kDefaultPort));
+
+ // Add Control D servers
+ config->nameservers.push_back(
+ IPEndPoint(IPAddress(76, 76, 2, 1), dns_protocol::kDefaultPort));
+ config->nameservers.push_back(
+ IPEndPoint(IPAddress(76, 76, 10, 1), dns_protocol::kDefaultPort));