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统一 domainStrategy 行为. (#2720)

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* 统一 `domainStrategy` 行为.

* Update proto

---------

Co-authored-by: rui0572 <125641819+rui0572@users.noreply.github.com>
This commit is contained in:
yuhan6665 2023-11-12 16:37:02 -05:00 committed by GitHub
parent d9fd3f8eb1
commit 7523f7f440
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 135 additions and 50 deletions
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24
infra/conf/transport_internet.go
View file

@ -654,12 +654,30 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
dStrategy := internet.DomainStrategy_AS_IS dStrategy := internet.DomainStrategy_AS_IS
switch strings.ToLower(c.DomainStrategy) { switch strings.ToLower(c.DomainStrategy) {
case "useip", "use_ip": case "asis", "":
dStrategy = internet.DomainStrategy_AS_IS
case "useip":
dStrategy = internet.DomainStrategy_USE_IP dStrategy = internet.DomainStrategy_USE_IP
case "useip4", "useipv4", "use_ipv4", "use_ip_v4", "use_ip4": case "useipv4":
dStrategy = internet.DomainStrategy_USE_IP4 dStrategy = internet.DomainStrategy_USE_IP4
case "useip6", "useipv6", "use_ipv6", "use_ip_v6", "use_ip6": case "useipv6":
dStrategy = internet.DomainStrategy_USE_IP6 dStrategy = internet.DomainStrategy_USE_IP6
case "useipv4v6":
dStrategy = internet.DomainStrategy_USE_IP46
case "useipv6v4":
dStrategy = internet.DomainStrategy_USE_IP64
case "forceip":
dStrategy = internet.DomainStrategy_FORCE_IP
case "forceipv4":
dStrategy = internet.DomainStrategy_FORCE_IP4
case "forceipv6":
dStrategy = internet.DomainStrategy_FORCE_IP6
case "forceipv4v6":
dStrategy = internet.DomainStrategy_FORCE_IP46
case "forceipv6v4":
dStrategy = internet.DomainStrategy_FORCE_IP64
default:
return nil, newError("unsupported domain strategy: ", c.DomainStrategy)
} }
return &internet.SocketConfig{ return &internet.SocketConfig{

43
transport/internet/config.go
View file

@ -12,6 +12,21 @@ var (
globalTransportSettings []*TransportConfig globalTransportSettings []*TransportConfig
) )
var strategy = [][]byte{
// name strategy, prefer, fallback
{0, 0, 0}, // AsIs none, /, /
{1, 0, 0}, // UseIP use, both, none
{1, 4, 0}, // UseIPv4 use, 4, none
{1, 6, 0}, // UseIPv6 use, 6, none
{1, 4, 6}, // UseIPv4v6 use, 4, 6
{1, 6, 4}, // UseIPv6v4 use, 6, 4
{2, 0, 0}, // ForceIP force, both, none
{2, 4, 0}, // ForceIPv4 force, 4, none
{2, 6, 0}, // ForceIPv6 force, 6, none
{2, 4, 6}, // ForceIPv4v6 force, 4, 6
{2, 6, 4}, // ForceIPv6v4 force, 6, 4
}
const unknownProtocol = "unknown" const unknownProtocol = "unknown"
func transportProtocolToString(protocol TransportProtocol) string { func transportProtocolToString(protocol TransportProtocol) string {
@ -122,3 +137,31 @@ func (c *ProxyConfig) HasTag() bool {
func (m SocketConfig_TProxyMode) IsEnabled() bool { func (m SocketConfig_TProxyMode) IsEnabled() bool {
return m != SocketConfig_Off return m != SocketConfig_Off
} }
func (s DomainStrategy) hasStrategy() bool {
return strategy[s][0] != 0
}
func (s DomainStrategy) forceIP() bool {
return strategy[s][0] == 2
}
func (s DomainStrategy) preferIP4() bool {
return strategy[s][1] == 4 || strategy[s][1] == 0
}
func (s DomainStrategy) preferIP6() bool {
return strategy[s][1] == 6 || strategy[s][1] == 0
}
func (s DomainStrategy) hasFallback() bool {
return strategy[s][2] != 0
}
func (s DomainStrategy) fallbackIP4() bool {
return strategy[s][2] == 4
}
func (s DomainStrategy) fallbackIP6() bool {
return strategy[s][2] == 6
}

75
transport/internet/config.pb.go
View file

@ -82,25 +82,46 @@ func (TransportProtocol) EnumDescriptor() ([]byte, []int) {
type DomainStrategy int32 type DomainStrategy int32
const ( const (
DomainStrategy_AS_IS DomainStrategy = 0 DomainStrategy_AS_IS DomainStrategy = 0
DomainStrategy_USE_IP DomainStrategy = 1 DomainStrategy_USE_IP DomainStrategy = 1
DomainStrategy_USE_IP4 DomainStrategy = 2 DomainStrategy_USE_IP4 DomainStrategy = 2
DomainStrategy_USE_IP6 DomainStrategy = 3 DomainStrategy_USE_IP6 DomainStrategy = 3
DomainStrategy_USE_IP46 DomainStrategy = 4
DomainStrategy_USE_IP64 DomainStrategy = 5
DomainStrategy_FORCE_IP DomainStrategy = 6
DomainStrategy_FORCE_IP4 DomainStrategy = 7
DomainStrategy_FORCE_IP6 DomainStrategy = 8
DomainStrategy_FORCE_IP46 DomainStrategy = 9
DomainStrategy_FORCE_IP64 DomainStrategy = 10
) )
// Enum value maps for DomainStrategy. // Enum value maps for DomainStrategy.
var ( var (
DomainStrategy_name = map[int32]string{ DomainStrategy_name = map[int32]string{
0: "AS_IS", 0: "AS_IS",
1: "USE_IP", 1: "USE_IP",
2: "USE_IP4", 2: "USE_IP4",
3: "USE_IP6", 3: "USE_IP6",
4: "USE_IP46",
5: "USE_IP64",
6: "FORCE_IP",
7: "FORCE_IP4",
8: "FORCE_IP6",
9: "FORCE_IP46",
10: "FORCE_IP64",
} }
DomainStrategy_value = map[string]int32{ DomainStrategy_value = map[string]int32{
"AS_IS": 0, "AS_IS": 0,
"USE_IP": 1, "USE_IP": 1,
"USE_IP4": 2, "USE_IP4": 2,
"USE_IP6": 3, "USE_IP6": 3,
"USE_IP46": 4,
"USE_IP64": 5,
"FORCE_IP": 6,
"FORCE_IP4": 7,
"FORCE_IP6": 8,
"FORCE_IP46": 9,
"FORCE_IP64": 10,
} }
) )
@ -710,18 +731,24 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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} }
var ( var (

7
transport/internet/config.proto
View file

@ -22,6 +22,13 @@ enum DomainStrategy {
USE_IP = 1; USE_IP = 1;
USE_IP4 = 2; USE_IP4 = 2;
USE_IP6 = 3; USE_IP6 = 3;
USE_IP46 = 4;
USE_IP64 = 5;
FORCE_IP = 6;
FORCE_IP4 = 7;
FORCE_IP6 = 8;
FORCE_IP46 = 9;
FORCE_IP64 = 10;
} }
message TransportConfig { message TransportConfig {

36
transport/internet/dialer.go
View file

@ -78,37 +78,27 @@ func lookupIP(domain string, strategy DomainStrategy, localAddr net.Address) ([]
return nil, nil return nil, nil
} }
option := dns.IPOption{ ips, err := dnsClient.LookupIP(domain, dns.IPOption{
IPv4Enable: true, IPv4Enable: (localAddr == nil || localAddr.Family().IsIPv4()) && strategy.preferIP4(),
IPv6Enable: true, IPv6Enable: (localAddr == nil || localAddr.Family().IsIPv6()) && strategy.preferIP6(),
FakeEnable: false, })
{ // Resolve fallback
if (len(ips) == 0 || err != nil) && strategy.hasFallback() && localAddr == nil {
ips, err = dnsClient.LookupIP(domain, dns.IPOption{
IPv4Enable: strategy.fallbackIP4(),
IPv6Enable: strategy.fallbackIP6(),
})
}
} }
switch { return ips, err
case strategy == DomainStrategy_USE_IP4 || (localAddr != nil && localAddr.Family().IsIPv4()):
option = dns.IPOption{
IPv4Enable: true,
IPv6Enable: false,
FakeEnable: false,
}
case strategy == DomainStrategy_USE_IP6 || (localAddr != nil && localAddr.Family().IsIPv6()):
option = dns.IPOption{
IPv4Enable: false,
IPv6Enable: true,
FakeEnable: false,
}
case strategy == DomainStrategy_AS_IS:
return nil, nil
}
return dnsClient.LookupIP(domain, option)
} }
func canLookupIP(ctx context.Context, dst net.Destination, sockopt *SocketConfig) bool { func canLookupIP(ctx context.Context, dst net.Destination, sockopt *SocketConfig) bool {
if dst.Address.Family().IsIP() || dnsClient == nil { if dst.Address.Family().IsIP() || dnsClient == nil {
return false return false
} }
return sockopt.DomainStrategy != DomainStrategy_AS_IS return sockopt.DomainStrategy.hasStrategy()
} }
func redirect(ctx context.Context, dst net.Destination, obt string) net.Conn { func redirect(ctx context.Context, dst net.Destination, obt string) net.Conn {