sing-box/route/rule_item_ip_is_private.go
2024-03-24 19:06:02 +08:00

47 lines
910 B
Go

package route
import (
"net/netip"
"github.com/sagernet/sing-box/adapter"
N "github.com/sagernet/sing/common/network"
)
var _ RuleItem = (*IPIsPrivateItem)(nil)
type IPIsPrivateItem struct {
isSource bool
}
func NewIPIsPrivateItem(isSource bool) *IPIsPrivateItem {
return &IPIsPrivateItem{isSource}
}
func (r *IPIsPrivateItem) Match(metadata *adapter.InboundContext) bool {
var destination netip.Addr
if r.isSource {
destination = metadata.Source.Addr
} else {
destination = metadata.Destination.Addr
}
if destination.IsValid() {
return !N.IsPublicAddr(destination)
}
if !r.isSource {
for _, destinationAddress := range metadata.DestinationAddresses {
if !N.IsPublicAddr(destinationAddress) {
return true
}
}
}
return false
}
func (r *IPIsPrivateItem) String() string {
if r.isSource {
return "source_ip_is_private=true"
} else {
return "ip_is_private=true"
}
}