Mirrors/coredns
1
0
Fork 0
mirror of https://github.com/coredns/coredns.git synced 2026-10-09 03:55:21 -04:00
Code Issues Packages Projects Releases Wiki Activity

plugin/forward: support DNS-over-QUIC upstreams (#8474)

Browse Source 
Signed-off-by: houyuwushang <liuluoqianqiu@outlook.com>
This commit is contained in:
houyuwushang
2026-09-08 12:51:18 +08:00
committed by GitHub
parent 71a60e140b
commit e1d3fe6bc6
13 changed files with 1679 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
plugin/pkg/proxy/connect.go
View File

@@ -1,6 +1,6 @@
// Package proxy implements a forwarding proxy with connection caching.
// It manages a pool of upstream connections (UDP and TCP) to reuse them for subsequent requests,
// reducing latency and handshake overhead. It supports in-band health checking.
// It reuses upstream DNS, DoT, DoH, and DoQ connections to reduce latency and
// handshake overhead. It supports in-band health checking.
package proxy
import (
@@ -267,6 +267,17 @@ func (p *Proxy) lookupDoH(ctx context.Context, state request.Request, _ Options)
return ret, localAddr, proto, nil
}
func (p *Proxy) lookupDoQ(ctx context.Context, state request.Request, _ Options) (*dns.Msg, net.Addr, string, error) {
// QUIC runs over UDP. Reporting udp keeps dnstap query_address and
// response_address consistent with the actual upstream socket.
const proto = "udp"
if p.doq == nil {
return nil, nil, proto, errors.New("proxy: DoQ transport is not initialized")
}
ret, localAddr, err := p.doq.exchange(ctx, state.Req, p.readTimeout)
return ret, localAddr, proto, err
}
// Connect selects an upstream, sends the request and waits for a response. It
// also returns CoreDNS's own outbound address on the upstream socket
// (localAddr) and the transport proto ("udp" or "tcp") actually used to reach
@@ -284,6 +295,8 @@ func (p *Proxy) Connect(ctx context.Context, state request.Request, opts Options
switch p.protocol {
case transport.HTTPS:
ret, localAddr, proto, err = p.lookupDoH(ctx, state, opts)
case transport.QUIC:
ret, localAddr, proto, err = p.lookupDoQ(ctx, state, opts)
case transport.DNS, transport.TLS:
ret, localAddr, proto, err = p.lookupDNS(ctx, state, opts)
default: