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Feat: add reverse match for GeoIP

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(cherry picked from commit 3a50affa0a7316a9ad249f1b2b2996cb88948551)
This commit is contained in:
Loyalsoldier 2021-04-08 13:19:25 +08:00 committed by 世界
parent 13bc0432bc
commit 3fe61ed4a2
No known key found for this signature in database
GPG key ID: CD109927C34A63C4
7 changed files with 232 additions and 112 deletions
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29
app/router/condition_geoip.go
View file

@ -13,11 +13,12 @@ type ipv6 struct {
} }
type GeoIPMatcher struct { type GeoIPMatcher struct {
countryCode string countryCode string
ip4 []uint32 reverseMatch bool
prefix4 []uint8 ip4 []uint32
ip6 []ipv6 prefix4 []uint8
prefix6 []uint8 ip6 []ipv6
prefix6 []uint8
} }
func normalize4(ip uint32, prefix uint8) uint32 { func normalize4(ip uint32, prefix uint8) uint32 {
@ -80,6 +81,10 @@ func (m *GeoIPMatcher) Init(cidrs []*CIDR) error {
return nil return nil
} }
func (m *GeoIPMatcher) SetReverseMatch(isReverseMatch bool) {
m.reverseMatch = isReverseMatch
}
func (m *GeoIPMatcher) match4(ip uint32) bool { func (m *GeoIPMatcher) match4(ip uint32) bool {
if len(m.ip4) == 0 { if len(m.ip4) == 0 {
return false return false
@ -147,8 +152,17 @@ func (m *GeoIPMatcher) match6(ip ipv6) bool {
func (m *GeoIPMatcher) Match(ip net.IP) bool { func (m *GeoIPMatcher) Match(ip net.IP) bool {
switch len(ip) { switch len(ip) {
case 4: case 4:
if m.reverseMatch {
return !m.match4(binary.BigEndian.Uint32(ip))
}
return m.match4(binary.BigEndian.Uint32(ip)) return m.match4(binary.BigEndian.Uint32(ip))
case 16: case 16:
if m.reverseMatch {
return !m.match6(ipv6{
a: binary.BigEndian.Uint64(ip[0:8]),
b: binary.BigEndian.Uint64(ip[8:16]),
})
}
return m.match6(ipv6{ return m.match6(ipv6{
a: binary.BigEndian.Uint64(ip[0:8]), a: binary.BigEndian.Uint64(ip[0:8]),
b: binary.BigEndian.Uint64(ip[8:16]), b: binary.BigEndian.Uint64(ip[8:16]),
@ -168,14 +182,15 @@ type GeoIPMatcherContainer struct {
func (c *GeoIPMatcherContainer) Add(geoip *GeoIP) (*GeoIPMatcher, error) { func (c *GeoIPMatcherContainer) Add(geoip *GeoIP) (*GeoIPMatcher, error) {
if len(geoip.CountryCode) > 0 { if len(geoip.CountryCode) > 0 {
for _, m := range c.matchers { for _, m := range c.matchers {
if m.countryCode == geoip.CountryCode { if m.countryCode == geoip.CountryCode && m.reverseMatch == geoip.ReverseMatch {
return m, nil return m, nil
} }
} }
} }
m := &GeoIPMatcher{ m := &GeoIPMatcher{
countryCode: geoip.CountryCode, countryCode: geoip.CountryCode,
reverseMatch: geoip.ReverseMatch,
} }
if err := m.Init(geoip.Cidr); err != nil { if err := m.Init(geoip.Cidr); err != nil {
return nil, err return nil, err

36
app/router/condition_geoip_test.go
View file

@ -125,6 +125,42 @@ func TestGeoIPMatcher(t *testing.T) {
} }
} }
func TestGeoIPReverseMatcher(t *testing.T) {
cidrList := router.CIDRList{
{Ip: []byte{8, 8, 8, 8}, Prefix: 32},
{Ip: []byte{91, 108, 4, 0}, Prefix: 16},
}
matcher := &router.GeoIPMatcher{}
matcher.SetReverseMatch(true) // Reverse match
common.Must(matcher.Init(cidrList))
testCases := []struct {
Input string
Output bool
}{
{
Input: "8.8.8.8",
Output: false,
},
{
Input: "2001:cdba::3257:9652",
Output: true,
},
{
Input: "91.108.255.254",
Output: false,
},
}
for _, testCase := range testCases {
ip := net.ParseAddress(testCase.Input).IP()
actual := matcher.Match(ip)
if actual != testCase.Output {
t.Error("expect input", testCase.Input, "to be", testCase.Output, ", but actually", actual)
}
}
}
func TestGeoIPMatcher4CN(t *testing.T) { func TestGeoIPMatcher4CN(t *testing.T) {
ips, err := loadGeoIP("CN") ips, err := loadGeoIP("CN")
common.Must(err) common.Must(err)

199
app/router/config.pb.go
View file

@ -264,8 +264,9 @@ type GeoIP struct {
sizeCache protoimpl.SizeCache sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields unknownFields protoimpl.UnknownFields
CountryCode string `protobuf:"bytes,1,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"` CountryCode string `protobuf:"bytes,1,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
Cidr []*CIDR `protobuf:"bytes,2,rep,name=cidr,proto3" json:"cidr,omitempty"` Cidr []*CIDR `protobuf:"bytes,2,rep,name=cidr,proto3" json:"cidr,omitempty"`
ReverseMatch bool `protobuf:"varint,3,opt,name=reverse_match,json=reverseMatch,proto3" json:"reverse_match,omitempty"`
} }
func (x *GeoIP) Reset() { func (x *GeoIP) Reset() {
@ -314,6 +315,13 @@ func (x *GeoIP) GetCidr() []*CIDR {
return nil return nil
} }
func (x *GeoIP) GetReverseMatch() bool {
if x != nil {
return x.ReverseMatch
}
return false
}
type GeoIPList struct { type GeoIPList struct {
state protoimpl.MessageState state protoimpl.MessageState
sizeCache protoimpl.SizeCache sizeCache protoimpl.SizeCache
@ -930,105 +938,108 @@ var file_app_router_config_proto_rawDesc = []byte{
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0x72, 0x6f, 0x74, 0x6f, 0x33,
} }
var ( var (

1
app/router/config.proto
View file

@ -54,6 +54,7 @@ message CIDR {
message GeoIP { message GeoIP {
string country_code = 1; string country_code = 1;
repeated CIDR cidr = 2; repeated CIDR cidr = 2;
bool reverse_match = 3;
} }
message GeoIPList { message GeoIPList {

2
infra/conf/dns.go
View file

@ -88,7 +88,7 @@ func (c *NameServerConfig) Build() (*dns.NameServer, error) {
}) })
} }
geoipList, err := toCidrList(c.ExpectIPs) geoipList, err := ToCidrList(c.ExpectIPs)
if err != nil { if err != nil {
return nil, newError("invalid IP rule: ", c.ExpectIPs).Base(err) return nil, newError("invalid IP rule: ", c.ExpectIPs).Base(err)
} }

39
infra/conf/router.go
View file

@ -399,21 +399,30 @@ func parseDomainRule(domain string) ([]*router.Domain, error) {
return []*router.Domain{domainRule}, nil return []*router.Domain{domainRule}, nil
} }
func toCidrList(ips StringList) ([]*router.GeoIP, error) { func ToCidrList(ips StringList) ([]*router.GeoIP, error) {
var geoipList []*router.GeoIP var geoipList []*router.GeoIP
var customCidrs []*router.CIDR var customCidrs []*router.CIDR
for _, ip := range ips { for _, ip := range ips {
if strings.HasPrefix(ip, "geoip:") { if strings.HasPrefix(ip, "geoip:") {
country := ip[6:] country := ip[6:]
isReverseMatch := false
if strings.HasPrefix(ip, "geoip:!") {
country = ip[7:]
isReverseMatch = true
}
if len(country) == 0 {
return nil, newError("empty country name in rule")
}
geoip, err := loadGeoIP(strings.ToUpper(country)) geoip, err := loadGeoIP(strings.ToUpper(country))
if err != nil { if err != nil {
return nil, newError("failed to load GeoIP: ", country).Base(err) return nil, newError("failed to load GeoIP: ", country).Base(err)
} }
geoipList = append(geoipList, &router.GeoIP{ geoipList = append(geoipList, &router.GeoIP{
CountryCode: strings.ToUpper(country), CountryCode: strings.ToUpper(country),
Cidr: geoip, Cidr: geoip,
ReverseMatch: isReverseMatch,
}) })
continue continue
} }
@ -436,14 +445,24 @@ func toCidrList(ips StringList) ([]*router.GeoIP, error) {
filename := kv[0] filename := kv[0]
country := kv[1] country := kv[1]
if len(filename) == 0 || len(country) == 0 {
return nil, newError("empty filename or empty country in rule")
}
isReverseMatch := false
if strings.HasPrefix(country, "!") {
country = country[1:]
isReverseMatch = true
}
geoip, err := loadIP(filename, strings.ToUpper(country)) geoip, err := loadIP(filename, strings.ToUpper(country))
if err != nil { if err != nil {
return nil, newError("failed to load IPs: ", country, " from ", filename).Base(err) return nil, newError("failed to load IPs: ", country, " from ", filename).Base(err)
} }
geoipList = append(geoipList, &router.GeoIP{ geoipList = append(geoipList, &router.GeoIP{
CountryCode: strings.ToUpper(filename + "_" + country), CountryCode: strings.ToUpper(filename + "_" + country),
Cidr: geoip, Cidr: geoip,
ReverseMatch: isReverseMatch,
}) })
continue continue
@ -525,7 +544,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
} }
if rawFieldRule.IP != nil { if rawFieldRule.IP != nil {
geoipList, err := toCidrList(*rawFieldRule.IP) geoipList, err := ToCidrList(*rawFieldRule.IP)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -541,7 +560,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
} }
if rawFieldRule.SourceIP != nil { if rawFieldRule.SourceIP != nil {
geoipList, err := toCidrList(*rawFieldRule.SourceIP) geoipList, err := ToCidrList(*rawFieldRule.SourceIP)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -583,21 +602,21 @@ func ParseRule(msg json.RawMessage) (*router.RoutingRule, error) {
if err != nil { if err != nil {
return nil, newError("invalid router rule").Base(err) return nil, newError("invalid router rule").Base(err)
} }
if rawRule.Type == "field" { if strings.EqualFold(rawRule.Type, "field") {
fieldrule, err := parseFieldRule(msg) fieldrule, err := parseFieldRule(msg)
if err != nil { if err != nil {
return nil, newError("invalid field rule").Base(err) return nil, newError("invalid field rule").Base(err)
} }
return fieldrule, nil return fieldrule, nil
} }
if rawRule.Type == "chinaip" { if strings.EqualFold(rawRule.Type, "chinaip") {
chinaiprule, err := parseChinaIPRule(msg) chinaiprule, err := parseChinaIPRule(msg)
if err != nil { if err != nil {
return nil, newError("invalid chinaip rule").Base(err) return nil, newError("invalid chinaip rule").Base(err)
} }
return chinaiprule, nil return chinaiprule, nil
} }
if rawRule.Type == "chinasites" { if strings.EqualFold(rawRule.Type, "chinasites") {
chinasitesrule, err := parseChinaSitesRule(msg) chinasitesrule, err := parseChinaSitesRule(msg)
if err != nil { if err != nil {
return nil, newError("invalid chinasites rule").Base(err) return nil, newError("invalid chinasites rule").Base(err)

38
infra/conf/router_test.go
View file

@ -2,15 +2,53 @@ package conf_test
import ( import (
"encoding/json" "encoding/json"
"os"
"path/filepath"
"testing" "testing"
_ "unsafe"
"github.com/golang/protobuf/proto" "github.com/golang/protobuf/proto"
"github.com/xtls/xray-core/app/router" "github.com/xtls/xray-core/app/router"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/net" "github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/platform"
"github.com/xtls/xray-core/common/platform/filesystem"
. "github.com/xtls/xray-core/infra/conf" . "github.com/xtls/xray-core/infra/conf"
) )
func init() {
wd, err := os.Getwd()
common.Must(err)
if _, err := os.Stat(platform.GetAssetLocation("geoip.dat")); err != nil && os.IsNotExist(err) {
common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "resources", "geoip.dat")))
}
os.Setenv("xray.location.asset", wd)
}
func TestToCidrList(t *testing.T) {
t.Log(os.Getenv("xray.location.asset"))
common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoiptestrouter.dat"), "geoip.dat"))
ips := StringList([]string{
"geoip:us",
"geoip:cn",
"geoip:!cn",
"ext:geoiptestrouter.dat:!cn",
"ext:geoiptestrouter.dat:ca",
"ext-ip:geoiptestrouter.dat:!cn",
"ext-ip:geoiptestrouter.dat:!ca",
})
_, err := ToCidrList(ips)
if err != nil {
t.Fatalf("Failed to parse geoip list, got %s", err)
}
}
func TestRouterConfig(t *testing.T) { func TestRouterConfig(t *testing.T) {
createParser := func() func(string) (proto.Message, error) { createParser := func() func(string) (proto.Message, error) {
return func(s string) (proto.Message, error) { return func(s string) (proto.Message, error) {