Xray-core/app/dns/dns.go

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2020-11-25 11:01:53 +00:00
// Package dns is an implementation of core.DNS feature.
package dns
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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import (
"context"
"fmt"
"strings"
"sync"
"github.com/xtls/xray-core/app/router"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/errors"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/session"
"github.com/xtls/xray-core/common/strmatcher"
"github.com/xtls/xray-core/features/dns"
)
// DNS is a DNS rely server.
type DNS struct {
sync.Mutex
tag string
disableCache bool
disableFallback bool
disableFallbackIfMatch bool
ipOption *dns.IPOption
hosts *StaticHosts
clients []*Client
ctx context.Context
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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domainMatcher strmatcher.IndexMatcher
matcherInfos []*DomainMatcherInfo
}
// DomainMatcherInfo contains information attached to index returned by Server.domainMatcher
type DomainMatcherInfo struct {
clientIdx uint16
domainRuleIdx uint16
}
// New creates a new DNS server with given configuration.
func New(ctx context.Context, config *Config) (*DNS, error) {
var tag string
if len(config.Tag) > 0 {
tag = config.Tag
} else {
tag = generateRandomTag()
}
var clientIP net.IP
switch len(config.ClientIp) {
case 0, net.IPv4len, net.IPv6len:
clientIP = net.IP(config.ClientIp)
default:
return nil, errors.New("unexpected client IP length ", len(config.ClientIp))
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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}
var ipOption *dns.IPOption
switch config.QueryStrategy {
case QueryStrategy_USE_IP:
ipOption = &dns.IPOption{
IPv4Enable: true,
IPv6Enable: true,
FakeEnable: false,
}
case QueryStrategy_USE_IP4:
ipOption = &dns.IPOption{
IPv4Enable: true,
IPv6Enable: false,
FakeEnable: false,
}
case QueryStrategy_USE_IP6:
ipOption = &dns.IPOption{
IPv4Enable: false,
IPv6Enable: true,
FakeEnable: false,
}
}
hosts, err := NewStaticHosts(config.StaticHosts)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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if err != nil {
return nil, errors.New("failed to create hosts").Base(err)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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}
clients := []*Client{}
domainRuleCount := 0
for _, ns := range config.NameServer {
domainRuleCount += len(ns.PrioritizedDomain)
}
// MatcherInfos is ensured to cover the maximum index domainMatcher could return, where matcher's index starts from 1
matcherInfos := make([]*DomainMatcherInfo, domainRuleCount+1)
domainMatcher := &strmatcher.MatcherGroup{}
geoipContainer := router.GeoIPMatcherContainer{}
for _, ns := range config.NameServer {
clientIdx := len(clients)
updateDomain := func(domainRule strmatcher.Matcher, originalRuleIdx int, matcherInfos []*DomainMatcherInfo) error {
midx := domainMatcher.Add(domainRule)
matcherInfos[midx] = &DomainMatcherInfo{
clientIdx: uint16(clientIdx),
domainRuleIdx: uint16(originalRuleIdx),
}
return nil
}
myClientIP := clientIP
switch len(ns.ClientIp) {
case net.IPv4len, net.IPv6len:
myClientIP = net.IP(ns.ClientIp)
}
client, err := NewClient(ctx, ns, myClientIP, geoipContainer, &matcherInfos, updateDomain)
if err != nil {
return nil, errors.New("failed to create client").Base(err)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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}
clients = append(clients, client)
}
// If there is no DNS client in config, add a `localhost` DNS client
if len(clients) == 0 {
clients = append(clients, NewLocalDNSClient())
}
return &DNS{
tag: tag,
hosts: hosts,
ipOption: ipOption,
clients: clients,
ctx: ctx,
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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domainMatcher: domainMatcher,
matcherInfos: matcherInfos,
disableCache: config.DisableCache,
disableFallback: config.DisableFallback,
disableFallbackIfMatch: config.DisableFallbackIfMatch,
}, nil
}
// Type implements common.HasType.
func (*DNS) Type() interface{} {
return dns.ClientType()
}
// Start implements common.Runnable.
func (s *DNS) Start() error {
return nil
}
// Close implements common.Closable.
func (s *DNS) Close() error {
return nil
}
// IsOwnLink implements proxy.dns.ownLinkVerifier
func (s *DNS) IsOwnLink(ctx context.Context) bool {
inbound := session.InboundFromContext(ctx)
return inbound != nil && inbound.Tag == s.tag
}
// LookupIP implements dns.Client.
func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
if domain == "" {
return nil, errors.New("empty domain name")
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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}
option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
if !option.IPv4Enable && !option.IPv6Enable {
return nil, dns.ErrEmptyResponse
}
// Normalize the FQDN form query
domain = strings.TrimSuffix(domain, ".")
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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// Static host lookup
switch addrs := s.hosts.Lookup(domain, option); {
case addrs == nil: // Domain not recorded in static host
break
case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)
return nil, dns.ErrEmptyResponse
case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Domain replacement
errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].Domain())
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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domain = addrs[0].Domain()
default: // Successfully found ip records in static host
errors.LogInfo(s.ctx, "returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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return toNetIP(addrs)
}
// Name servers lookup
errs := []error{}
ctx := session.ContextWithInbound(s.ctx, &session.Inbound{Tag: s.tag})
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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for _, client := range s.sortClients(domain) {
if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
errors.LogDebug(s.ctx, "skip DNS resolution for domain ", domain, " at server ", client.Name())
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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continue
}
ips, err := client.QueryIP(ctx, domain, option, s.disableCache)
if len(ips) > 0 {
return ips, nil
}
if err != nil {
errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
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errs = append(errs, err)
}
// 5 for RcodeRefused in miekg/dns, hardcode to reduce binary size
if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch && err != dns.ErrEmptyResponse && dns.RCodeFromError(err) != 5 {
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
2021-10-16 13:02:51 +00:00
return nil, err
}
}
return nil, errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
2021-10-16 13:02:51 +00:00
}
// LookupHosts implements dns.HostsLookup.
func (s *DNS) LookupHosts(domain string) *net.Address {
domain = strings.TrimSuffix(domain, ".")
if domain == "" {
return nil
}
// Normalize the FQDN form query
addrs := s.hosts.Lookup(domain, *s.ipOption)
if len(addrs) > 0 {
errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].String())
return &addrs[0]
}
return nil
}
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
2021-10-16 13:02:51 +00:00
// GetIPOption implements ClientWithIPOption.
func (s *DNS) GetIPOption() *dns.IPOption {
return s.ipOption
}
// SetQueryOption implements ClientWithIPOption.
func (s *DNS) SetQueryOption(isIPv4Enable, isIPv6Enable bool) {
s.ipOption.IPv4Enable = isIPv4Enable
s.ipOption.IPv6Enable = isIPv6Enable
}
// SetFakeDNSOption implements ClientWithIPOption.
func (s *DNS) SetFakeDNSOption(isFakeEnable bool) {
s.ipOption.FakeEnable = isFakeEnable
}
func (s *DNS) sortClients(domain string) []*Client {
clients := make([]*Client, 0, len(s.clients))
clientUsed := make([]bool, len(s.clients))
clientNames := make([]string, 0, len(s.clients))
domainRules := []string{}
// Priority domain matching
hasMatch := false
for _, match := range s.domainMatcher.Match(domain) {
info := s.matcherInfos[match]
client := s.clients[info.clientIdx]
domainRule := client.domains[info.domainRuleIdx]
domainRules = append(domainRules, fmt.Sprintf("%s(DNS idx:%d)", domainRule, info.clientIdx))
if clientUsed[info.clientIdx] {
continue
}
clientUsed[info.clientIdx] = true
clients = append(clients, client)
clientNames = append(clientNames, client.Name())
hasMatch = true
}
if !(s.disableFallback || s.disableFallbackIfMatch && hasMatch) {
// Default round-robin query
for idx, client := range s.clients {
if clientUsed[idx] || client.skipFallback {
continue
}
clientUsed[idx] = true
clients = append(clients, client)
clientNames = append(clientNames, client.Name())
}
}
if len(domainRules) > 0 {
errors.LogDebug(s.ctx, "domain ", domain, " matches following rules: ", domainRules)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
2021-10-16 13:02:51 +00:00
}
if len(clientNames) > 0 {
errors.LogDebug(s.ctx, "domain ", domain, " will use DNS in order: ", clientNames)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
2021-10-16 13:02:51 +00:00
}
if len(clients) == 0 {
clients = append(clients, s.clients[0])
clientNames = append(clientNames, s.clients[0].Name())
errors.LogDebug(s.ctx, "domain ", domain, " will use the first DNS: ", clientNames)
Merge dns (#722) * DNS: add clientip for specific nameserver * Refactoring: DNS App * DNS: add DNS over QUIC support * Feat: add disableCache option for DNS * Feat: add queryStrategy option for DNS * Feat: add disableFallback & skipFallback option for DNS * Feat: DNS hosts support multiple addresses * Feat: DNS transport over TCP * DNS: fix typo & refine code * DNS: refine code * Add disableFallbackIfMatch dns option * Feat: routing and freedom outbound ignore Fake DNS Turn off fake DNS for request sent from Routing and Freedom outbound. Fake DNS now only apply to DNS outbound. This is important for Android, where VPN service take over all system DNS traffic and pass it to core. "UseIp" option can be used in Freedom outbound to avoid getting fake IP and fail connection. * Fix test * Fix dns return * Fix local dns return empty * Apply timeout to dns outbound * Update app/dns/config.go Co-authored-by: Loyalsoldier <10487845+loyalsoldier@users.noreply.github.com> Co-authored-by: Ye Zhihao <vigilans@foxmail.com> Co-authored-by: maskedeken <52683904+maskedeken@users.noreply.github.com> Co-authored-by: V2Fly Team <51714622+vcptr@users.noreply.github.com> Co-authored-by: CalmLong <37164399+calmlong@users.noreply.github.com> Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: 秋のかえで <autmaple@protonmail.com> Co-authored-by: 朱聖黎 <digglife@gmail.com> Co-authored-by: rurirei <72071920+rurirei@users.noreply.github.com> Co-authored-by: yuhan6665 <1588741+yuhan6665@users.noreply.github.com> Co-authored-by: Arthur Morgan <4637240+badO1a5A90@users.noreply.github.com>
2021-10-16 13:02:51 +00:00
}
return clients
}
func init() {
common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
return New(ctx, config.(*Config))
}))
}