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Add DNS mode

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世界 2026-05-02 15:42:00 +08:00
parent 3c7d6ad82f
commit 47bdde06c3
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GPG key ID: CD109927C34A63C4
4 changed files with 103 additions and 58 deletions
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26
redirect_nftables_rules.go
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@ -675,7 +675,7 @@ func (r *autoRedirect) nftablesCreateExcludeRules(nft *nftables.Conn, table *nft
nftablesCreateExcludeDestinationIPSet(nft, table, chain, inet6RouteExcludeAddress.ID, inet6RouteExcludeAddress.Name, nftables.TableFamilyIPv6, false)
}
if !r.tunOptions.EXP_DisableDNSHijack && ((chain.Hooknum == nftables.ChainHookPrerouting && chain.Type == nftables.ChainTypeNAT) ||
if r.tunOptions.DNSModeOrDefault() == DNSModeHijack && ((chain.Hooknum == nftables.ChainHookPrerouting && chain.Type == nftables.ChainTypeNAT) ||
(r.tunOptions.AutoRedirectMarkMode && chain.Hooknum == nftables.ChainHookOutput && chain.Type == nftables.ChainTypeNAT)) {
if r.enableIPv4 {
err := r.nftablesCreateDNSHijackRulesForFamily(nft, table, chain, nftables.TableFamilyIPv4, 5, "inet4_local_address_set")
@ -1050,23 +1050,19 @@ func (r *autoRedirect) nftablesCreateDNSHijackRulesForFamily(
if err != nil {
return E.Cause(err, "add dns protocol set")
}
dnsServer := common.Find(r.tunOptions.DNSServers, func(it netip.Addr) bool {
return it.Is4() == (family == nftables.TableFamilyIPv4)
})
if !dnsServer.IsValid() {
if family == nftables.TableFamilyIPv4 {
if HasNextAddress(r.tunOptions.Inet4Address[0], 1) {
dnsServer = r.tunOptions.Inet4Address[0].Addr().Next()
}
} else {
if HasNextAddress(r.tunOptions.Inet6Address[0], 1) {
dnsServer = r.tunOptions.Inet6Address[0].Addr().Next()
}
}
var dnsServers []netip.Addr
if family == nftables.TableFamilyIPv4 {
dnsServers, err = r.tunOptions.Inet4DNSAddress()
} else {
dnsServers, err = r.tunOptions.Inet6DNSAddress()
}
if !dnsServer.IsValid() {
if err != nil {
return err
}
if len(dnsServers) == 0 {
return nil
}
dnsServer := dnsServers[0]
exprs := []expr.Any{
&expr.Meta{
Key: expr.MetaKeyNFPROTO,