75 lines
1.6 KiB
Go
75 lines
1.6 KiB
Go
|
package netlink
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"net"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Dir is an enum representing an ipsec template direction.
|
||
|
|
type Dir uint8
|
||
|
|
|
||
|
|
const (
|
||
|
|
XFRM_DIR_IN Dir = iota
|
||
|
|
XFRM_DIR_OUT
|
||
|
|
XFRM_DIR_FWD
|
||
|
|
XFRM_SOCKET_IN
|
||
|
|
XFRM_SOCKET_OUT
|
||
|
|
XFRM_SOCKET_FWD
|
||
|
|
)
|
||
|
|
|
||
|
|
func (d Dir) String() string {
|
||
|
|
switch d {
|
||
|
|
case XFRM_DIR_IN:
|
||
|
|
return "dir in"
|
||
|
|
case XFRM_DIR_OUT:
|
||
|
|
return "dir out"
|
||
|
|
case XFRM_DIR_FWD:
|
||
|
|
return "dir fwd"
|
||
|
|
case XFRM_SOCKET_IN:
|
||
|
|
return "socket in"
|
||
|
|
case XFRM_SOCKET_OUT:
|
||
|
|
return "socket out"
|
||
|
|
case XFRM_SOCKET_FWD:
|
||
|
|
return "socket fwd"
|
||
|
|
}
|
||
|
|
return fmt.Sprintf("socket %d", d-XFRM_SOCKET_IN)
|
||
|
|
}
|
||
|
|
|
||
|
|
// XfrmPolicyTmpl encapsulates a rule for the base addresses of an ipsec
|
||
|
|
// policy. These rules are matched with XfrmState to determine encryption
|
||
|
|
// and authentication algorithms.
|
||
|
|
type XfrmPolicyTmpl struct {
|
||
|
|
Dst net.IP
|
||
|
|
Src net.IP
|
||
|
|
Proto Proto
|
||
|
|
Mode Mode
|
||
|
|
Spi int
|
||
|
|
Reqid int
|
||
|
|
}
|
||
|
|
|
||
|
|
func (t XfrmPolicyTmpl) String() string {
|
||
|
|
return fmt.Sprintf("{Dst: %v, Src: %v, Proto: %s, Mode: %s, Spi: 0x%x, Reqid: 0x%x}",
|
||
|
|
t.Dst, t.Src, t.Proto, t.Mode, t.Spi, t.Reqid)
|
||
|
|
}
|
||
|
|
|
||
|
|
// XfrmPolicy represents an ipsec policy. It represents the overlay network
|
||
|
|
// and has a list of XfrmPolicyTmpls representing the base addresses of
|
||
|
|
// the policy.
|
||
|
|
type XfrmPolicy struct {
|
||
|
|
Dst *net.IPNet
|
||
|
|
Src *net.IPNet
|
||
|
|
Proto Proto
|
||
|
|
DstPort int
|
||
|
|
SrcPort int
|
||
|
|
Dir Dir
|
||
|
|
Priority int
|
||
|
|
Index int
|
||
|
|
Mark *XfrmMark
|
||
|
|
Tmpls []XfrmPolicyTmpl
|
||
|
|
}
|
||
|
|
|
||
|
|
func (p XfrmPolicy) String() string {
|
||
|
|
return fmt.Sprintf("{Dst: %v, Src: %v, Proto: %s, DstPort: %d, SrcPort: %d, Dir: %s, Priority: %d, Index: %d, Mark: %s, Tmpls: %s}",
|
||
|
|
p.Dst, p.Src, p.Proto, p.DstPort, p.SrcPort, p.Dir, p.Priority, p.Index, p.Mark, p.Tmpls)
|
||
|
|
}
|