mirror of
https://github.com/AdguardTeam/AdGuardHome.git
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Pull request: all: add dnscrypt support
Merge in DNS/adguard-home from 1361-dnscrypt to master Closes #1361. Squashed commit of the following: commit 31b780c16cc6b68336b95275f62381cee2e822a2 Merge: c2ce98aaf9b963fc77Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Mon Dec 7 17:48:41 2020 +0300 Merge branch 'master' into 1361-dnscrypt commit c2ce98aaf24bd5ed5b5cd7da86aae093866ab34e Merge: 3bf3d7b9663e513e33Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Fri Dec 4 19:32:40 2020 +0300 Merge branch 'master' into 1361-dnscrypt commit 3bf3d7b96530c86b54545462390562ebedc616b2 Merge: 5de4519964134220c5Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Thu Dec 3 17:31:59 2020 +0300 Merge branch 'master' into 1361-dnscrypt commit 5de451996d48ab3792ce78291068f72785303494 Merge: 60d7976f7ab8defdb0Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Dec 2 19:07:56 2020 +0300 Merge branch 'master' into 1361-dnscrypt commit 60d7976f7c7ad0316751b92477a31f882c1e3134 Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Mon Nov 30 19:11:14 2020 +0300 all: add dnscrypt support
This commit is contained in:
Ainar Garipov
parent
9b963fc777
commit
09b6eba7d9
@ -15,11 +15,13 @@ and this project adheres to
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### Added
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- DNSCrypt protocol support [#1361].
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- A 5 second wait period until a DHCP server's network interface gets an IP
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address ([#2304]).
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- `$dnstype` modifier for filters ([#2337]).
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- HTTP API request body size limit ([#2305]).
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[#1361]: https://github.com/AdguardTeam/AdGuardHome/issues/1361
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[#2304]: https://github.com/AdguardTeam/AdGuardHome/issues/2304
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[#2305]: https://github.com/AdguardTeam/AdGuardHome/issues/2305
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[#2337]: https://github.com/AdguardTeam/AdGuardHome/issues/2337
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1
go.mod
1
go.mod
@ -7,6 +7,7 @@ require (
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github.com/AdguardTeam/golibs v0.4.4
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github.com/AdguardTeam/urlfilter v0.13.0
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github.com/NYTimes/gziphandler v1.1.1
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github.com/ameshkov/dnscrypt/v2 v2.0.0
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github.com/beefsack/go-rate v0.0.0-20200827232406-6cde80facd47 // indirect
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github.com/fsnotify/fsnotify v1.4.9
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github.com/go-ping/ping v0.0.0-20201115131931-3300c582a663
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11
go.sum
11
go.sum
@ -28,8 +28,6 @@ github.com/AdguardTeam/golibs v0.4.3/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKU
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github.com/AdguardTeam/golibs v0.4.4 h1:cM9UySQiYFW79zo5XRwnaIWVzfW4eNXmZktMrWbthpw=
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github.com/AdguardTeam/golibs v0.4.4/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
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github.com/AdguardTeam/gomitmproxy v0.2.0/go.mod h1:Qdv0Mktnzer5zpdpi5rAwixNJzW2FN91LjKJCkVbYGU=
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github.com/AdguardTeam/urlfilter v0.12.3 h1:FMjQG0eTgrr8xA3z2zaLVcCgGdpzoECPGWwgPjtwPNs=
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github.com/AdguardTeam/urlfilter v0.12.3/go.mod h1:1fcCQx5TGJANrQN6sHNNM9KPBl7qx7BJml45ko6vru0=
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github.com/AdguardTeam/urlfilter v0.13.0 h1:MfO46K81JVTkhgP6gRu/buKl5wAOSfusjiDwjT1JN1c=
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github.com/AdguardTeam/urlfilter v0.13.0/go.mod h1:klx4JbOfc4EaNb5lWLqOwfg+pVcyRukmoJRvO55lL5U=
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github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
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@ -109,8 +107,6 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
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github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
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github.com/go-ole/go-ole v1.2.4 h1:nNBDSCOigTSiarFpYE9J/KtEA1IOW4CNeqT9TQDqCxI=
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github.com/go-ole/go-ole v1.2.4/go.mod h1:XCwSNxSkXRo4vlyPy93sltvi/qJq0jqQhjqQNIwKuxM=
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github.com/go-ping/ping v0.0.0-20201022122018-3977ed72668a h1:O9xspHB2yrvKfMQ1m6OQhqe37i5yvg0dXAYMuAjugmM=
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github.com/go-ping/ping v0.0.0-20201022122018-3977ed72668a/go.mod h1:35JbSyV/BYqHwwRA6Zr1uVDm1637YlNOU61wI797NPI=
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github.com/go-ping/ping v0.0.0-20201115131931-3300c582a663 h1:jI2GiiRh+pPbey52EVmbU6kuLiXqwy4CXZ4gwUBj8Y0=
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github.com/go-ping/ping v0.0.0-20201115131931-3300c582a663/go.mod h1:35JbSyV/BYqHwwRA6Zr1uVDm1637YlNOU61wI797NPI=
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github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
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@ -236,8 +232,6 @@ github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCV
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github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
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github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
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github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
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github.com/kardianos/service v1.1.0 h1:QV2SiEeWK42P0aEmGcsAgjApw/lRxkwopvT+Gu6t1/0=
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github.com/kardianos/service v1.1.0/go.mod h1:RrJI2xn5vve/r32U5suTbeaSGoMU6GbNPoj36CVYcHc=
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github.com/kardianos/service v1.2.0 h1:bGuZ/epo3vrt8IPC7mnKQolqFeYJb7Cs8Rk4PSOBB/g=
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github.com/kardianos/service v1.2.0/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
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github.com/karrick/godirwalk v1.10.12 h1:BqUm+LuJcXjGv1d2mj3gBiQyrQ57a0rYoAmhvJQ7RDU=
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@ -259,8 +253,6 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
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github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
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github.com/lucas-clemente/quic-go v0.18.1 h1:DMR7guC0NtVS8zNZR3IO7NARZvZygkSC56GGtC6cyys=
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github.com/lucas-clemente/quic-go v0.18.1/go.mod h1:yXttHsSNxQi8AWijC/vLP+OJczXqzHSOcJrM5ITUlCg=
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github.com/lucas-clemente/quic-go v0.19.0 h1:IG5lB7DfHl6eZ7WTBVL8bnbDg0JGwDv906l6JffQbyg=
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github.com/lucas-clemente/quic-go v0.19.0/go.mod h1:ZUygOqIoai0ASXXLJ92LTnKdbqh9MHCLTX6Nr1jUrK0=
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github.com/lucas-clemente/quic-go v0.19.1 h1:J9TkQJGJVOR3UmGhd4zdVYwKSA0EoXbLRf15uQJ6gT4=
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github.com/lucas-clemente/quic-go v0.19.1/go.mod h1:ZUygOqIoai0ASXXLJ92LTnKdbqh9MHCLTX6Nr1jUrK0=
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github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
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@ -467,8 +459,6 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnk
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golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897 h1:pLI5jrR7OSLijeIDcmRxNmw2api+jEfxLoykJVice/E=
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golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9 h1:umElSU9WZirRdgu2yFHY0ayQkEnKiOC1TtM3fWXFnoU=
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golang.org/x/crypto v0.0.0-20201112155050-0c6587e931a9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9 h1:phUcVbl53swtrUN8kQEXFhUxPlIlWyBfKmidCu7P95o=
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golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
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golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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@ -554,7 +544,6 @@ golang.org/x/sys v0.0.0-20181029174526-d69651ed3497/go.mod h1:STP8DvDyc/dI5b8T5h
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golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190204203706-41f3e6584952/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20190316082340-a2f829d7f35f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@ -15,6 +15,7 @@ import (
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"github.com/AdguardTeam/dnsproxy/proxy"
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"github.com/AdguardTeam/dnsproxy/upstream"
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"github.com/AdguardTeam/golibs/log"
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"github.com/ameshkov/dnscrypt/v2"
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)
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// FilteringConfig represents the DNS filtering configuration of AdGuard Home
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@ -114,6 +115,15 @@ type TLSConfig struct {
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dnsNames []string
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}
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// DNSCryptConfig is the DNSCrypt server configuration struct.
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type DNSCryptConfig struct {
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UDPListenAddr *net.UDPAddr
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TCPListenAddr *net.TCPAddr
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ProviderName string
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ResolverCert *dnscrypt.Cert
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Enabled bool
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}
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// ServerConfig represents server configuration.
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// The zero ServerConfig is empty and ready for use.
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type ServerConfig struct {
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@ -124,6 +134,7 @@ type ServerConfig struct {
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FilteringConfig
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TLSConfig
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DNSCryptConfig
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TLSAllowUnencryptedDOH bool
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TLSv12Roots *x509.CertPool // list of root CAs for TLSv1.2
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@ -189,6 +200,13 @@ func (s *Server) createProxyConfig() (proxy.Config, error) {
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return proxyConfig, err
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}
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if s.conf.DNSCryptConfig.Enabled {
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proxyConfig.DNSCryptUDPListenAddr = []*net.UDPAddr{s.conf.DNSCryptConfig.UDPListenAddr}
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proxyConfig.DNSCryptTCPListenAddr = []*net.TCPAddr{s.conf.DNSCryptConfig.TCPListenAddr}
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proxyConfig.DNSCryptProviderName = s.conf.DNSCryptConfig.ProviderName
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proxyConfig.DNSCryptResolverCert = s.conf.DNSCryptConfig.ResolverCert
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}
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// Validate proxy config
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if proxyConfig.UpstreamConfig == nil || len(proxyConfig.UpstreamConfig.Upstreams) == 0 {
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return proxyConfig, errors.New("no default upstream servers configured")
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@ -99,6 +99,16 @@ type tlsConfigSettings struct {
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PortDNSOverTLS int `yaml:"port_dns_over_tls" json:"port_dns_over_tls,omitempty"` // DNS-over-TLS port. If 0, DOT will be disabled
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PortDNSOverQUIC uint16 `yaml:"port_dns_over_quic" json:"port_dns_over_quic,omitempty"` // DNS-over-QUIC port. If 0, DoQ will be disabled
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// PortDNSCrypt is the port for DNSCrypt requests. If it's zero,
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// DNSCrypt is disabled.
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PortDNSCrypt int `yaml:"port_dnscrypt" json:"port_dnscrypt"`
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// DNSCryptConfigFile is the path to the DNSCrypt config file. Must be
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// set if PortDNSCrypt is not zero.
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//
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// See https://github.com/AdguardTeam/dnsproxy and
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// https://github.com/ameshkov/dnscrypt.
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DNSCryptConfigFile string `yaml:"dnscrypt_config_file" json:"dnscrypt_config_file"`
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// Allow DOH queries via unencrypted HTTP (e.g. for reverse proxying)
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AllowUnencryptedDOH bool `yaml:"allow_unencrypted_doh" json:"allow_unencrypted_doh"`
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@ -3,8 +3,10 @@ package home
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import (
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"fmt"
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"net"
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"os"
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"path/filepath"
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"github.com/AdguardTeam/AdGuardHome/internal/agherr"
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"github.com/AdguardTeam/AdGuardHome/internal/dnsfilter"
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"github.com/AdguardTeam/AdGuardHome/internal/dnsforward"
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"github.com/AdguardTeam/AdGuardHome/internal/querylog"
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@ -12,6 +14,8 @@ import (
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"github.com/AdguardTeam/AdGuardHome/internal/util"
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"github.com/AdguardTeam/dnsproxy/proxy"
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"github.com/AdguardTeam/golibs/log"
|
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"github.com/ameshkov/dnscrypt/v2"
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yaml "gopkg.in/yaml.v2"
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)
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// Called by other modules when configuration is changed
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@ -70,7 +74,12 @@ func initDNSServer() error {
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}
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Context.dnsServer = dnsforward.NewServer(p)
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Context.clients.dnsServer = Context.dnsServer
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dnsConfig := generateServerConfig()
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dnsConfig, err := generateServerConfig()
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if err != nil {
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closeDNSServer()
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return fmt.Errorf("generateServerConfig: %w", err)
|
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}
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|
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err = Context.dnsServer.Prepare(&dnsConfig)
|
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if err != nil {
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closeDNSServer()
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@ -104,10 +113,11 @@ func onDNSRequest(d *proxy.DNSContext) {
|
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}
|
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}
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|
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func generateServerConfig() dnsforward.ServerConfig {
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newconfig := dnsforward.ServerConfig{
|
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UDPListenAddr: &net.UDPAddr{IP: net.ParseIP(config.DNS.BindHost), Port: config.DNS.Port},
|
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TCPListenAddr: &net.TCPAddr{IP: net.ParseIP(config.DNS.BindHost), Port: config.DNS.Port},
|
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func generateServerConfig() (newconfig dnsforward.ServerConfig, err error) {
|
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bindHost := net.ParseIP(config.DNS.BindHost)
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newconfig = dnsforward.ServerConfig{
|
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UDPListenAddr: &net.UDPAddr{IP: bindHost, Port: config.DNS.Port},
|
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TCPListenAddr: &net.TCPAddr{IP: bindHost, Port: config.DNS.Port},
|
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FilteringConfig: config.DNS.FilteringConfig,
|
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ConfigModified: onConfigModified,
|
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HTTPRegister: httpRegister,
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@ -121,25 +131,76 @@ func generateServerConfig() dnsforward.ServerConfig {
|
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|
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if tlsConf.PortDNSOverTLS != 0 {
|
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newconfig.TLSListenAddr = &net.TCPAddr{
|
||||
IP: net.ParseIP(config.DNS.BindHost),
|
||||
IP: bindHost,
|
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Port: tlsConf.PortDNSOverTLS,
|
||||
}
|
||||
}
|
||||
|
||||
if tlsConf.PortDNSOverQUIC != 0 {
|
||||
newconfig.QUICListenAddr = &net.UDPAddr{
|
||||
IP: net.ParseIP(config.DNS.BindHost),
|
||||
IP: bindHost,
|
||||
Port: int(tlsConf.PortDNSOverQUIC),
|
||||
}
|
||||
}
|
||||
|
||||
if tlsConf.PortDNSCrypt != 0 {
|
||||
newconfig.DNSCryptConfig, err = newDNSCrypt(bindHost, tlsConf)
|
||||
if err != nil {
|
||||
// Don't wrap the error, because it's already
|
||||
// wrapped by newDNSCrypt.
|
||||
return dnsforward.ServerConfig{}, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
newconfig.TLSv12Roots = Context.tlsRoots
|
||||
newconfig.TLSCiphers = Context.tlsCiphers
|
||||
newconfig.TLSAllowUnencryptedDOH = tlsConf.AllowUnencryptedDOH
|
||||
|
||||
newconfig.FilterHandler = applyAdditionalFiltering
|
||||
newconfig.GetCustomUpstreamByClient = Context.clients.FindUpstreams
|
||||
return newconfig
|
||||
|
||||
return newconfig, nil
|
||||
}
|
||||
|
||||
func newDNSCrypt(bindHost net.IP, tlsConf tlsConfigSettings) (dnscc dnsforward.DNSCryptConfig, err error) {
|
||||
if tlsConf.DNSCryptConfigFile == "" {
|
||||
return dnscc, agherr.Error("no dnscrypt_config_file")
|
||||
}
|
||||
|
||||
f, err := os.Open(tlsConf.DNSCryptConfigFile)
|
||||
if err != nil {
|
||||
return dnscc, fmt.Errorf("opening dnscrypt config: %w", err)
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
rc := &dnscrypt.ResolverConfig{}
|
||||
err = yaml.NewDecoder(f).Decode(rc)
|
||||
if err != nil {
|
||||
return dnscc, fmt.Errorf("decoding dnscrypt config: %w", err)
|
||||
}
|
||||
|
||||
cert, err := rc.CreateCert()
|
||||
if err != nil {
|
||||
return dnscc, fmt.Errorf("creating dnscrypt cert: %w", err)
|
||||
}
|
||||
|
||||
udpAddr := &net.UDPAddr{
|
||||
IP: bindHost,
|
||||
Port: tlsConf.PortDNSCrypt,
|
||||
}
|
||||
tcpAddr := &net.TCPAddr{
|
||||
IP: bindHost,
|
||||
Port: tlsConf.PortDNSCrypt,
|
||||
}
|
||||
|
||||
return dnsforward.DNSCryptConfig{
|
||||
UDPListenAddr: udpAddr,
|
||||
TCPListenAddr: tcpAddr,
|
||||
ResolverCert: cert,
|
||||
ProviderName: rc.ProviderName,
|
||||
Enabled: true,
|
||||
}, nil
|
||||
}
|
||||
|
||||
type dnsEncryption struct {
|
||||
@ -281,11 +342,16 @@ func startDNSServer() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func reconfigureDNSServer() error {
|
||||
newconfig := generateServerConfig()
|
||||
err := Context.dnsServer.Reconfigure(&newconfig)
|
||||
func reconfigureDNSServer() (err error) {
|
||||
var newconfig dnsforward.ServerConfig
|
||||
newconfig, err = generateServerConfig()
|
||||
if err != nil {
|
||||
return fmt.Errorf("couldn't start forwarding DNS server: %w", err)
|
||||
return fmt.Errorf("generating forwarding dns server config: %w", err)
|
||||
}
|
||||
|
||||
err = Context.dnsServer.Reconfigure(&newconfig)
|
||||
if err != nil {
|
||||
return fmt.Errorf("starting forwarding dns server: %w", err)
|
||||
}
|
||||
|
||||
return nil
|
||||
|
||||
Loading…
Reference in New Issue
Block a user