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54 lines
2.1 KiB
Go
54 lines
2.1 KiB
Go
package libv2ray
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import (
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"fmt"
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corenet "github.com/xtls/xray-core/common/net"
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)
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// ProcessFinder is an interface for Android process finding functionality.
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// Apps using AndroidLibXrayLite should implement FindProcessByConnection()
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// and pass the implementation to RegisterProcessFinder() before starting the core.
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type ProcessFinder interface {
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// FindProcessByConnection finds the UID of the process that owns the given connection.
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//
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// network: Protocol type: "tcp" or "udp"
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// srcIP: Source IP address
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// srcPort: Source port
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// destIP: Destination IP address
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// destPort: Destination port
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// Returns the UID of the owning process, or -1 if not found.
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FindProcessByConnection(network, srcIP string, srcPort int, destIP string, destPort int) int
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}
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// RegisterProcessFinder registers an Android process finder with Xray-core,
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// enabling per-app routing based on UID. Must be called before starting the
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// core for process-based routing rules to work.
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// Pass nil to unregister a previously registered finder.
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func (x *CoreController) RegisterProcessFinder(finder ProcessFinder) {
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if finder == nil {
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corenet.RegisterAndroidProcessFinder(nil)
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return
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}
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corenet.RegisterAndroidProcessFinder(func(network, srcIP string, srcPort uint16, destIP string, destPort uint16) (uid int, name string, path string, err error) {
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// getConnectionOwnerUid only works for established connections,
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// so if dest is missing, it likely means the connection is not fully established yet.
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// In that case, we can return an error to indicate that the process cannot be determined at this time.
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if destPort == 0 || destIP == "" {
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return 0, "", "", fmt.Errorf("processFinder, no dest for %s %s:%d", network, srcIP, srcPort)
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}
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defer func() {
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if r := recover(); r != nil {
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uid, name, path, err = 0, "", "", fmt.Errorf("processFinder panic: %v", r)
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}
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}()
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uid = finder.FindProcessByConnection(network, srcIP, int(srcPort), destIP, int(destPort))
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// if uid < 0 {
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// return 0, "", "", fmt.Errorf("processFinder, not found for %s %s:%d -> %s:%d", network, srcIP, srcPort, destIP, destPort)
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// }
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return uid, fmt.Sprintf("%d", uid), "", nil
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})
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}
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