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Add REJECT_CLOUDFLARE_IPS flag to filter out Cloudflare-owned IPs from

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DNS updates

  IP detection providers can sometimes return a Cloudflare anycast IP
  instead
  of the user's real public IP, causing incorrect DNS updates. When
  REJECT_CLOUDFLARE_IPS=true, detected IPs are checked against
  Cloudflare's
  published IP ranges (ips-v4/ips-v6) and rejected if they match.
This commit is contained in:
Timothy Miller
2026-03-18 19:44:06 -04:00
parent 54ca4a5eae
commit 4b1875b0cd
6 changed files with 460 additions and 11 deletions
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228
Cargo.lock generated
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@@ -20,6 +20,12 @@ dependencies = [
"libc",
]
[[package]]
name = "anyhow"
version = "1.0.102"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@@ -68,9 +74,9 @@ checksum = "1e748733b7cbc798e1434b6ac524f0c1ff2ab456fe201501e6497c8417a4fc33"
[[package]]
name = "cc"
version = "1.2.56"
version = "1.2.57"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "aebf35691d1bfb0ac386a69bac2fde4dd276fb618cf8bf4f5318fe285e821bb2"
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dependencies = [
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@@ -103,11 +109,12 @@ dependencies = [
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version = "2.0.2"
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dependencies = [
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"idna",
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"ipnet",
"regex",
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@@ -187,6 +194,12 @@ version = "1.0.7"
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@@ -306,11 +319,24 @@ dependencies = [
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@@ -330,12 +356,27 @@ dependencies = [
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[[package]]
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@@ -555,6 +596,12 @@ dependencies = [
"zerovec",
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"
[[package]]
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@@ -593,7 +640,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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name = "unicode-xid"
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@@ -1365,6 +1448,15 @@ dependencies = [
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version = "0.4.0+wasi-0.3.0-rc-2026-01-06"
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name = "writeable"