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cmd/lopower: add interface addresses to netstack

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Signed-off-by: Maisem Ali <maisem@tailscale.com>
This commit is contained in:
Maisem Ali 2024-11-03 06:48:23 -08:00 committed by Anton Tolchanov
parent 5865d33b41
commit f7b6ff52b1
1 changed files with 19 additions and 0 deletions
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19
cmd/lopower/lopower.go
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@ -9,6 +9,7 @@ import (
"encoding/base64" "encoding/base64"
"encoding/hex" "encoding/hex"
"encoding/json" "encoding/json"
"errors"
"flag" "flag"
"fmt" "fmt"
"io" "io"
@ -233,6 +234,24 @@ func (lp *lpServer) initNetstack(ctx context.Context) error {
} }
ns.SetPromiscuousMode(nicID, true) ns.SetPromiscuousMode(nicID, true)
lp.mu.Lock()
v4, v6 := lp.c.V4, lp.c.V6
lp.mu.Unlock()
prefix := tcpip.AddrFrom4Slice(v4.AsSlice()).WithPrefix()
if tcpProb := ns.AddProtocolAddress(nicID, tcpip.ProtocolAddress{
Protocol: ipv4.ProtocolNumber,
AddressWithPrefix: prefix,
}, stack.AddressProperties{}); tcpProb != nil {
return errors.New(tcpProb.String())
}
prefix = tcpip.AddrFrom16Slice(v6.AsSlice()).WithPrefix()
if tcpProb := ns.AddProtocolAddress(nicID, tcpip.ProtocolAddress{
Protocol: ipv6.ProtocolNumber,
AddressWithPrefix: prefix,
}, stack.AddressProperties{}); tcpProb != nil {
return errors.New(tcpProb.String())
}
ipv4Subnet, err := tcpip.NewSubnet(tcpip.AddrFromSlice(make([]byte, 4)), tcpip.MaskFromBytes(make([]byte, 4))) ipv4Subnet, err := tcpip.NewSubnet(tcpip.AddrFromSlice(make([]byte, 4)), tcpip.MaskFromBytes(make([]byte, 4)))
if err != nil { if err != nil {
return fmt.Errorf("could not create IPv4 subnet: %v", err) return fmt.Errorf("could not create IPv4 subnet: %v", err)