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⚡️ feat(dns): add random DNS query ID generation

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Ivan K
2025-05-11 19:33:08 +03:00
parent c74d733717
commit 916321578d
1 changed files with 4 additions and 2 deletions
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6
podkop/files/usr/bin/podkop
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@@ -2209,8 +2209,10 @@ check_dns_available() {
fi
if [ "$dns_type" = "doh" ]; then
# Create DNS wire format query for google.com A record
local dns_query="q80BAAABAAAAAAAAA3d3dwZnb29nbGUDY29tAAABAAE="
# Generate random DNS query ID (2 bytes)
local random_id=$(head -c2 /dev/urandom | hexdump -ve '1/1 "%.2x"')
# Create DNS wire format query for google.com A record with random ID
local dns_query=$(printf "\x${random_id:0:2}\x${random_id:2:2}\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x03www\x06google\x03com\x00\x00\x01\x00\x01" | base64)
# Try POST method first (RFC 8484 compliant)
local result=$(echo "$dns_query" | base64 -d | curl -H "Content-Type: application/dns-message" \