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Stop using DHCP on iOS and tvOS

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We do not have the `com.apple.developer.networking.multicast` entitlement and are unable to obtain it for non-technical reasons.
This commit is contained in:
世界 2025-08-19 21:38:03 +08:00
parent 1596e072ab
commit 023fcf6572
No known key found for this signature in database
GPG Key ID: CD109927C34A63C4
3 changed files with 34 additions and 19 deletions
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10
cmd/internal/build_libbox/main.go
View File

@ -46,7 +46,7 @@ var (
sharedFlags []string
debugFlags []string
sharedTags []string
darwinTags []string
macOSTags []string
memcTags []string
notMemcTags []string
debugTags []string
@ -63,7 +63,7 @@ func init() {
debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag)
sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_clash_api", "with_conntrack")
darwinTags = append(darwinTags, "with_dhcp")
macOSTags = append(macOSTags, "with_dhcp")
memcTags = append(memcTags, "with_tailscale")
notMemcTags = append(notMemcTags, "with_low_memory")
debugTags = append(debugTags, "debug")
@ -160,7 +160,9 @@ func buildApple() {
"-tags-not-macos=with_low_memory",
}
if !withTailscale {
args = append(args, "-tags-macos="+strings.Join(memcTags, ","))
args = append(args, "-tags-macos="+strings.Join(append(macOSTags, memcTags...), ","))
} else {
args = append(args, "-tags-macos="+strings.Join(macOSTags, ","))
}
if !debugEnabled {
@ -169,7 +171,7 @@ func buildApple() {
args = append(args, debugFlags...)
}
tags := append(sharedTags, darwinTags...)
tags := sharedTags
if withTailscale {
tags = append(tags, memcTags...)
}

10
dns/transport/dhcp/dhcp.go
View File

@ -197,7 +197,11 @@ func (t *Transport) fetchServers0(ctx context.Context, iface *control.Interface)
}
defer packetConn.Close()
discovery, err := dhcpv4.NewDiscovery(iface.HardwareAddr, dhcpv4.WithBroadcast(true), dhcpv4.WithRequestedOptions(dhcpv4.OptionDomainNameServer, dhcpv4.OptionDNSDomainSearchList))
discovery, err := dhcpv4.NewDiscovery(iface.HardwareAddr, dhcpv4.WithBroadcast(true), dhcpv4.WithRequestedOptions(
dhcpv4.OptionDomainName,
dhcpv4.OptionDomainNameServer,
dhcpv4.OptionDNSDomainSearchList,
))
if err != nil {
return err
}
@ -249,8 +253,10 @@ func (t *Transport) fetchServersResponse(iface *control.Interface, packetConn ne
func (t *Transport) recreateServers(iface *control.Interface, dhcpPacket *dhcpv4.DHCPv4) error {
searchList := dhcpPacket.DomainSearch()
if searchList != nil {
if searchList != nil && len(searchList.Labels) > 0 {
t.search = searchList.Labels
} else if dhcpPacket.DomainName() != "" {
t.search = []string{dhcpPacket.DomainName()}
}
serverAddrs := common.Map(dhcpPacket.DNS(), func(it net.IP) M.Socksaddr {
return M.SocksaddrFrom(M.AddrFromIP(it), 53)

33
dns/transport/local/local_darwin.go
View File

@ -7,6 +7,7 @@ import (
"errors"
"net"
mDNS "github.com/miekg/dns"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/dns"
@ -19,8 +20,6 @@ import (
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/service"
mDNS "github.com/miekg/dns"
)
func RegisterTransport(registry *dns.TransportRegistry) {
@ -74,12 +73,14 @@ func (t *Transport) Start(stage adapter.StartStage) error {
break
}
}
if t.fallback {
t.dhcpTransport = newDHCPTransport(t.TransportAdapter, log.ContextWithOverrideLevel(t.ctx, log.LevelDebug), t.dialer, t.logger)
if t.dhcpTransport != nil {
err := t.dhcpTransport.Start(stage)
if err != nil {
return err
if !C.IsIos {
if t.fallback {
t.dhcpTransport = newDHCPTransport(t.TransportAdapter, log.ContextWithOverrideLevel(t.ctx, log.LevelDebug), t.dialer, t.logger)
if t.dhcpTransport != nil {
err := t.dhcpTransport.Start(stage)
if err != nil {
return err
}
}
}
}
@ -104,10 +105,12 @@ func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg,
if !t.fallback {
return t.exchange(ctx, message, domain)
}
if t.dhcpTransport != nil {
dhcpTransports, _ := t.dhcpTransport.Fetch()
if len(dhcpTransports) > 0 {
return t.dhcpTransport.Exchange0(ctx, message, dhcpTransports)
if !C.IsIos {
if t.dhcpTransport != nil {
dhcpTransports, _ := t.dhcpTransport.Fetch()
if len(dhcpTransports) > 0 {
return t.dhcpTransport.Exchange0(ctx, message, dhcpTransports)
}
}
}
if t.preferGo {
@ -131,5 +134,9 @@ func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg,
}
return dns.FixedResponse(message.Id, question, addresses, C.DefaultDNSTTL), nil
}
return nil, E.New("only A and AAAA queries are supported on Apple platforms when using TUN and DHCP unavailable.")
if C.IsIos {
return nil, E.New("only A and AAAA queries are supported on iOS and tvOS when using NetworkExtension.")
} else {
return nil, E.New("only A and AAAA queries are supported on macOS when using NetworkExtension and DHCP unavailable.")
}
}