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feat: sniffer's force-domain and skip-domain support `rule-set:…
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…` and `geosite:`
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wwqgtxx committed Aug 14, 2024
1 parent 696b75e commit 7b03fdc
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Showing 6 changed files with 161 additions and 112 deletions.
19 changes: 4 additions & 15 deletions component/fakeip/pool.go
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@ import (

"github.com/metacubex/mihomo/common/nnip"
"github.com/metacubex/mihomo/component/profile/cachefile"
"github.com/metacubex/mihomo/component/trie"
C "github.com/metacubex/mihomo/constant"
)

Expand Down Expand Up @@ -36,8 +35,7 @@ type Pool struct {
offset netip.Addr
cycle bool
mux sync.Mutex
host *trie.DomainTrie[struct{}]
rules []C.Rule
host []C.Rule
ipnet netip.Prefix
store store
}
Expand Down Expand Up @@ -68,14 +66,8 @@ func (p *Pool) LookBack(ip netip.Addr) (string, bool) {

// ShouldSkipped return if domain should be skipped
func (p *Pool) ShouldSkipped(domain string) bool {
if p.host != nil {
if p.host.Search(domain) != nil {
return true
}
}
for _, rule := range p.rules {
metadata := &C.Metadata{Host: domain}
if match, _ := rule.Match(metadata); match {
for _, rule := range p.host {
if match, _ := rule.Match(&C.Metadata{Host: domain}); match {
return true
}
}
Expand Down Expand Up @@ -164,9 +156,7 @@ func (p *Pool) restoreState() {

type Options struct {
IPNet netip.Prefix
Host *trie.DomainTrie[struct{}]

Rules []C.Rule
Host []C.Rule

// Size sets the maximum number of entries in memory
// and does not work if Persistence is true
Expand Down Expand Up @@ -197,7 +187,6 @@ func New(options Options) (*Pool, error) {
offset: first.Prev(),
cycle: false,
host: options.Host,
rules: options.Rules,
ipnet: options.IPNet,
}
if options.Persistence {
Expand Down
4 changes: 3 additions & 1 deletion component/fakeip/pool_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@ import (

"github.com/metacubex/mihomo/component/profile/cachefile"
"github.com/metacubex/mihomo/component/trie"
C "github.com/metacubex/mihomo/constant"
RC "github.com/metacubex/mihomo/rules/common"

"github.com/sagernet/bbolt"
"github.com/stretchr/testify/assert"
Expand Down Expand Up @@ -154,7 +156,7 @@ func TestPool_Skip(t *testing.T) {
pools, tempfile, err := createPools(Options{
IPNet: ipnet,
Size: 10,
Host: tree,
Host: []C.Rule{RC.NewDomainSet(tree.NewDomainSet(), "")},
})
assert.Nil(t, err)
defer os.Remove(tempfile)
Expand Down
32 changes: 21 additions & 11 deletions component/sniffer/dispatcher.go
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@ import (

"github.com/metacubex/mihomo/common/lru"
N "github.com/metacubex/mihomo/common/net"
"github.com/metacubex/mihomo/component/trie"
C "github.com/metacubex/mihomo/constant"
"github.com/metacubex/mihomo/constant/sniffer"
"github.com/metacubex/mihomo/log"
Expand All @@ -26,17 +25,26 @@ var Dispatcher *SnifferDispatcher
type SnifferDispatcher struct {
enable bool
sniffers map[sniffer.Sniffer]SnifferConfig
forceDomain *trie.DomainSet
skipSNI *trie.DomainSet
forceDomain []C.Rule
skipDomain []C.Rule
skipList *lru.LruCache[string, uint8]
forceDnsMapping bool
parsePureIp bool
}

func (sd *SnifferDispatcher) shouldOverride(metadata *C.Metadata) bool {
return (metadata.Host == "" && sd.parsePureIp) ||
sd.forceDomain.Has(metadata.Host) ||
(metadata.DNSMode == C.DNSMapping && sd.forceDnsMapping)
if metadata.Host == "" && sd.parsePureIp {
return true
}
if metadata.DNSMode == C.DNSMapping && sd.forceDnsMapping {
return true
}
for _, rule := range sd.forceDomain {
if ok, _ := rule.Match(&C.Metadata{Host: metadata.Host}); ok {
return true
}
}
return false
}

func (sd *SnifferDispatcher) UDPSniff(packet C.PacketAdapter) bool {
Expand Down Expand Up @@ -94,9 +102,11 @@ func (sd *SnifferDispatcher) TCPSniff(conn *N.BufferedConn, metadata *C.Metadata
log.Debugln("[Sniffer] All sniffing sniff failed with from [%s:%d] to [%s:%d]", metadata.SrcIP, metadata.SrcPort, metadata.String(), metadata.DstPort)
return false
} else {
if sd.skipSNI.Has(host) {
log.Debugln("[Sniffer] Skip sni[%s]", host)
return false
for _, rule := range sd.skipDomain {
if ok, _ := rule.Match(&C.Metadata{Host: host}); ok {
log.Debugln("[Sniffer] Skip sni[%s]", host)
return false
}
}

sd.skipList.Delete(dst)
Expand Down Expand Up @@ -187,12 +197,12 @@ func NewCloseSnifferDispatcher() (*SnifferDispatcher, error) {
}

func NewSnifferDispatcher(snifferConfig map[sniffer.Type]SnifferConfig,
forceDomain *trie.DomainSet, skipSNI *trie.DomainSet,
forceDomain []C.Rule, skipDomain []C.Rule,
forceDnsMapping bool, parsePureIp bool) (*SnifferDispatcher, error) {
dispatcher := SnifferDispatcher{
enable: true,
forceDomain: forceDomain,
skipSNI: skipSNI,
skipDomain: skipDomain,
skipList: lru.New(lru.WithSize[string, uint8](128), lru.WithAge[string, uint8](600)),
forceDnsMapping: forceDnsMapping,
parsePureIp: parsePureIp,
Expand Down
7 changes: 7 additions & 0 deletions component/trie/domain.go
Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,13 @@ func (t *DomainTrie[T]) Foreach(fn func(domain string, data T) bool) {
}
}

func (t *DomainTrie[T]) IsEmpty() bool {
if t == nil {
return true
}
return t.root.isEmpty()
}

func recursion[T any](items []string, node *Node[T], fn func(domain string, data T) bool) bool {
for key, data := range node.getChildren() {
newItems := append([]string{key}, items...)
Expand Down
170 changes: 85 additions & 85 deletions config/config.go
Original file line number Diff line number Diff line change
Expand Up @@ -164,8 +164,8 @@ type IPTables struct {
type Sniffer struct {
Enable bool
Sniffers map[snifferTypes.Type]SNIFF.SnifferConfig
ForceDomain *trie.DomainSet
SkipDomain *trie.DomainSet
ForceDomain []C.Rule
SkipDomain []C.Rule
ForceDnsMapping bool
ParsePureIp bool
}
Expand Down Expand Up @@ -627,7 +627,7 @@ func ParseRawConfig(rawCfg *RawConfig) (*Config, error) {
}
}

config.Sniffer, err = parseSniffer(rawCfg.Sniffer)
config.Sniffer, err = parseSniffer(rawCfg.Sniffer, rules, ruleProviders)
if err != nil {
return nil, err
}
Expand Down Expand Up @@ -1408,87 +1408,27 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie[resolver.HostValue], rul
return nil, err
}

var host *trie.DomainTrie[struct{}]
var fakeIPRules []C.Rule
// fake ip skip host filter
if len(cfg.FakeIPFilter) != 0 {
host = trie.New[struct{}]()
for _, domain := range cfg.FakeIPFilter {
if strings.Contains(strings.ToLower(domain), ",") {
if strings.Contains(domain, "geosite:") {
subkeys := strings.Split(domain, ":")
subkeys = subkeys[1:]
subkeys = strings.Split(subkeys[0], ",")
for _, country := range subkeys {
found := false
for _, rule := range rules {
if rule.RuleType() == C.GEOSITE {
if strings.EqualFold(country, rule.Payload()) {
found = true
fakeIPRules = append(fakeIPRules, rule)
}
}
}
if !found {
rule, err := RC.NewGEOSITE(country, "")
if err != nil {
return nil, err
}
fakeIPRules = append(fakeIPRules, rule)
}
}

}
} else if strings.Contains(strings.ToLower(domain), "rule-set:") {
subkeys := strings.Split(domain, ":")
subkeys = subkeys[1:]
subkeys = strings.Split(subkeys[0], ",")
for _, domainSetName := range subkeys {
if rp, ok := ruleProviders[domainSetName]; !ok {
return nil, fmt.Errorf("not found rule-set: %s", domainSetName)
} else {
switch rp.Behavior() {
case providerTypes.IPCIDR:
return nil, fmt.Errorf("rule provider type error, except domain,actual %s", rp.Behavior())
case providerTypes.Classical:
log.Warnln("%s provider is %s, only matching it contain domain rule", rp.Name(), rp.Behavior())
default:
}
}
rule, err := RP.NewRuleSet(domainSetName, "", true)
if err != nil {
return nil, err
}

fakeIPRules = append(fakeIPRules, rule)
}
} else {
_ = host.Insert(domain, struct{}{})
}
}
}

var fakeIPTrie *trie.DomainTrie[struct{}]
if len(dnsCfg.Fallback) != 0 {
if host == nil {
host = trie.New[struct{}]()
}
fakeIPTrie = trie.New[struct{}]()
for _, fb := range dnsCfg.Fallback {
if net.ParseIP(fb.Addr) != nil {
continue
}
_ = host.Insert(fb.Addr, struct{}{})
_ = fakeIPTrie.Insert(fb.Addr, struct{}{})
}
}

if host != nil {
host.Optimize()
// fake ip skip host filter
host, err := parseDomain(cfg.FakeIPFilter, fakeIPTrie, rules, ruleProviders)
if err != nil {
return nil, err
}

pool, err := fakeip.New(fakeip.Options{
IPNet: fakeIPRange,
Size: 1000,
Host: host,
Rules: fakeIPRules,
Persistence: rawCfg.Profile.StoreFakeIP,
})
if err != nil {
Expand Down Expand Up @@ -1609,7 +1549,7 @@ func parseTuicServer(rawTuic RawTuicServer, general *General) error {
return nil
}

func parseSniffer(snifferRaw RawSniffer) (*Sniffer, error) {
func parseSniffer(snifferRaw RawSniffer, rules []C.Rule, ruleProviders map[string]providerTypes.RuleProvider) (*Sniffer, error) {
sniffer := &Sniffer{
Enable: snifferRaw.Enable,
ForceDnsMapping: snifferRaw.ForceDnsMapping,
Expand Down Expand Up @@ -1672,23 +1612,83 @@ func parseSniffer(snifferRaw RawSniffer) (*Sniffer, error) {

sniffer.Sniffers = loadSniffer

forceDomainTrie := trie.New[struct{}]()
for _, domain := range snifferRaw.ForceDomain {
err := forceDomainTrie.Insert(domain, struct{}{})
if err != nil {
return nil, fmt.Errorf("error domian[%s] in force-domain, error:%v", domain, err)
}
forceDomain, err := parseDomain(snifferRaw.ForceDomain, nil, rules, ruleProviders)
if err != nil {
return nil, fmt.Errorf("error in force-domain, error:%w", err)
}
sniffer.ForceDomain = forceDomainTrie.NewDomainSet()
sniffer.ForceDomain = forceDomain

skipDomainTrie := trie.New[struct{}]()
for _, domain := range snifferRaw.SkipDomain {
err := skipDomainTrie.Insert(domain, struct{}{})
if err != nil {
return nil, fmt.Errorf("error domian[%s] in force-domain, error:%v", domain, err)
}
skipDomain, err := parseDomain(snifferRaw.SkipDomain, nil, rules, ruleProviders)
if err != nil {
return nil, fmt.Errorf("error in skip-domain, error:%w", err)
}
sniffer.SkipDomain = skipDomainTrie.NewDomainSet()
sniffer.SkipDomain = skipDomain

return sniffer, nil
}

func parseDomain(domains []string, domainTrie *trie.DomainTrie[struct{}], rules []C.Rule, ruleProviders map[string]providerTypes.RuleProvider) (domainRules []C.Rule, err error) {
var rule C.Rule
for _, domain := range domains {
domainLower := strings.ToLower(domain)
if strings.Contains(domainLower, "geosite:") {
subkeys := strings.Split(domain, ":")
subkeys = subkeys[1:]
subkeys = strings.Split(subkeys[0], ",")
for _, country := range subkeys {
found := false
for _, rule = range rules {
if rule.RuleType() == C.GEOSITE {
if strings.EqualFold(country, rule.Payload()) {
found = true
domainRules = append(domainRules, rule)
}
}
}
if !found {
rule, err = RC.NewGEOSITE(country, "")
if err != nil {
return nil, err
}
domainRules = append(domainRules, rule)
}
}
} else if strings.Contains(domainLower, "rule-set:") {
subkeys := strings.Split(domain, ":")
subkeys = subkeys[1:]
subkeys = strings.Split(subkeys[0], ",")
for _, domainSetName := range subkeys {
if rp, ok := ruleProviders[domainSetName]; !ok {
return nil, fmt.Errorf("not found rule-set: %s", domainSetName)
} else {
switch rp.Behavior() {
case providerTypes.IPCIDR:
return nil, fmt.Errorf("rule provider type error, except domain,actual %s", rp.Behavior())
case providerTypes.Classical:
log.Warnln("%s provider is %s, only matching it contain domain rule", rp.Name(), rp.Behavior())
default:
}
}
rule, err = RP.NewRuleSet(domainSetName, "", true)
if err != nil {
return nil, err
}

domainRules = append(domainRules, rule)
}
} else {
if domainTrie == nil {
domainTrie = trie.New[struct{}]()
}
err = domainTrie.Insert(domain, struct{}{})
if err != nil {
return nil, err
}
}
}
if !domainTrie.IsEmpty() {
rule = RC.NewDomainSet(domainTrie.NewDomainSet(), "")
domainRules = append(domainRules, rule)
}
return
}
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