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Pull request 1891: 5902-bootstrap-hosts

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Merge in DNS/adguard-home from 5902-bootstrap-hosts to master

Updates #5902.

Squashed commit of the following:

commit fcc65d3a8d7566acc361f54b18d1af85045225e2
Merge: 0c336af07 1fd6cf1a2
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Jun 30 12:29:06 2023 +0300

    Merge branch 'master' into 5902-bootstrap-hosts

commit 0c336af07d2864533e1f10029b4321d7cd210a47
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Jun 29 15:40:28 2023 +0300

    all: imp & simplify

commit 45aae90035b98b30199cc7fc92991528f4e968c0
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 28 20:24:43 2023 +0300

    all: imp code, docs

commit e3dbb5bfe5dfbde7af00f39adcc15e9711e5feb0
Merge: a33a8e93c 2069eddf9
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 28 18:27:36 2023 +0300

    Merge branch 'master' into 5902-bootstrap-hosts

commit a33a8e93cb36f7d0c4472e524e44de6ff0ab6653
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 28 13:27:11 2023 +0300

    aghos: add type check

commit 781a3a248871df2ea37a936c8d6b0b11e2d2f3a4
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 28 13:09:37 2023 +0300

    all: log changes

commit 4575368655356f84992fad2bfb78cbc1c88da25a
Merge: 636c440fc cf7c12c97
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 28 13:08:11 2023 +0300

    Merge branch 'master' into 5902-bootstrap-hosts

commit 636c440fca9cbdfd5c12b7f89432fb9323e01d86
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Jun 28 13:06:32 2023 +0300

    all: imp tests

commit 0eff7a747e32216d78abf9db9460cb9d48f31f96
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Jun 26 18:40:22 2023 +0300

    dnsforward: imp code

commit 7489a30971e3c76b8f62fd4ca11a977eeabe2cf5
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Jun 26 17:04:10 2023 +0300

    all: resolve upstreams with hosts
This commit is contained in:
Eugene Burkov
2023-06-30 12:41:10 +03:00
parent 1fd6cf1a2f
commit 91f3e29c08
8 changed files with 502 additions and 205 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
internal/dnsforward/config.go
View File

@@ -15,7 +15,6 @@ import (
"github.com/AdguardTeam/AdGuardHome/internal/aghtls"
"github.com/AdguardTeam/AdGuardHome/internal/filtering"
"github.com/AdguardTeam/dnsproxy/proxy"
"github.com/AdguardTeam/dnsproxy/upstream"
"github.com/AdguardTeam/golibs/errors"
"github.com/AdguardTeam/golibs/log"
"github.com/AdguardTeam/golibs/netutil"
@@ -436,102 +435,6 @@ func (s *Server) initDefaultSettings() {
}
}
// UpstreamHTTPVersions returns the HTTP versions for upstream configuration
// depending on configuration.
func UpstreamHTTPVersions(http3 bool) (v []upstream.HTTPVersion) {
if !http3 {
return upstream.DefaultHTTPVersions
}
return []upstream.HTTPVersion{
upstream.HTTPVersion3,
upstream.HTTPVersion2,
upstream.HTTPVersion11,
}
}
// prepareUpstreamSettings - prepares upstream DNS server settings
func (s *Server) prepareUpstreamSettings() error {
// We're setting a customized set of RootCAs. The reason is that Go default
// mechanism of loading TLS roots does not always work properly on some
// routers so we're loading roots manually and pass it here.
//
// See [aghtls.SystemRootCAs].
upstream.RootCAs = s.conf.TLSv12Roots
upstream.CipherSuites = s.conf.TLSCiphers
// Load upstreams either from the file, or from the settings
var upstreams []string
if s.conf.UpstreamDNSFileName != "" {
data, err := os.ReadFile(s.conf.UpstreamDNSFileName)
if err != nil {
return fmt.Errorf("reading upstream from file: %w", err)
}
upstreams = stringutil.SplitTrimmed(string(data), "\n")
log.Debug("dns: using %d upstream servers from file %s", len(upstreams), s.conf.UpstreamDNSFileName)
} else {
upstreams = s.conf.UpstreamDNS
}
httpVersions := UpstreamHTTPVersions(s.conf.UseHTTP3Upstreams)
upstreams = stringutil.FilterOut(upstreams, IsCommentOrEmpty)
upstreamConfig, err := proxy.ParseUpstreamsConfig(
upstreams,
&upstream.Options{
Bootstrap: s.conf.BootstrapDNS,
Timeout: s.conf.UpstreamTimeout,
HTTPVersions: httpVersions,
PreferIPv6: s.conf.BootstrapPreferIPv6,
},
)
if err != nil {
return fmt.Errorf("parsing upstream config: %w", err)
}
if len(upstreamConfig.Upstreams) == 0 {
log.Info("warning: no default upstream servers specified, using %v", defaultDNS)
var uc *proxy.UpstreamConfig
uc, err = proxy.ParseUpstreamsConfig(
defaultDNS,
&upstream.Options{
Bootstrap: s.conf.BootstrapDNS,
Timeout: s.conf.UpstreamTimeout,
HTTPVersions: httpVersions,
PreferIPv6: s.conf.BootstrapPreferIPv6,
},
)
if err != nil {
return fmt.Errorf("parsing default upstreams: %w", err)
}
upstreamConfig.Upstreams = uc.Upstreams
}
s.conf.UpstreamConfig = upstreamConfig
return nil
}
// setProxyUpstreamMode sets the upstream mode and related settings in conf
// based on provided parameters.
func setProxyUpstreamMode(
conf *proxy.Config,
allServers bool,
fastestAddr bool,
fastestTimeout time.Duration,
) {
if allServers {
conf.UpstreamMode = proxy.UModeParallel
} else if fastestAddr {
conf.UpstreamMode = proxy.UModeFastestAddr
conf.FastestPingTimeout = fastestTimeout
} else {
conf.UpstreamMode = proxy.UModeLoadBalance
}
}
// prepareIpsetListSettings reads and prepares the ipset configuration either
// from a file or from the data in the configuration file.
func (s *Server) prepareIpsetListSettings() (err error) {