Revision eeb3e8cd5e0d6e269575b51e2b8c462503c12c0b authored by Tom Hadlaw on 20 July 2024, 19:48:55 UTC, committed by Tom Hadlaw on 20 July 2024, 19:48:55 UTC
Signed-off-by: Tom Hadlaw <tom.hadlaw@isovalent.com>
1 parent acc80d2
ipv6.go
// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package nat
import (
"fmt"
"unsafe"
"github.com/cilium/cilium/pkg/bpf"
"github.com/cilium/cilium/pkg/byteorder"
"github.com/cilium/cilium/pkg/tuple"
"github.com/cilium/cilium/pkg/types"
)
// NatEntry6 represents an IPv6 entry in the NAT table.
type NatEntry6 struct {
Created uint64 `align:"created"`
NeedsCT uint64 `align:"needs_ct"`
Pad1 uint64 `align:"pad1"`
Pad2 uint64 `align:"pad2"`
Addr types.IPv6 `align:"to_saddr"`
Port uint16 `align:"to_sport"`
_ [6]byte
}
// SizeofNatEntry6 is the size of the NatEntry6 type in bytes.
const SizeofNatEntry6 = int(unsafe.Sizeof(NatEntry6{}))
// String returns the readable format.
func (n *NatEntry6) String() string {
return fmt.Sprintf("Addr=%s Port=%d Created=%d NeedsCT=%d\n",
n.Addr,
n.Port,
n.Created,
n.NeedsCT)
}
// Dump dumps NAT entry to string.
func (n *NatEntry6) Dump(key NatKey, toDeltaSecs func(uint64) string) string {
var which string
if key.GetFlags()&tuple.TUPLE_F_IN != 0 {
which = "DST"
} else {
which = "SRC"
}
return fmt.Sprintf("XLATE_%s [%s]:%d Created=%s NeedsCT=%d\n",
which,
n.Addr,
n.Port,
toDeltaSecs(n.Created),
n.NeedsCT)
}
// ToHost converts NatEntry4 ports to host byte order.
func (n *NatEntry6) ToHost() NatEntry {
x := *n
x.Port = byteorder.NetworkToHost16(n.Port)
return &x
}
func (n *NatEntry6) New() bpf.MapValue { return &NatEntry6{} }
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...