Carlos de Paula d49011702b Refactor faasd and faas-containerd merge
The use of containerd and CNI functions has been refactored to reuse
the same codebase.

Added all network functionality to own directory and package. Removed
netlink and weave library in favor of using CNI plugin result files.

Rename containers handler to functions to clear-up functionality.

Signed-off-by: Carlos de Paula <me@carlosedp.com>
2020-02-04 10:12:43 +00:00

97 lines
2.1 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)
}
// PolicyAction is an enum representing an ipsec policy action.
type PolicyAction uint8
const (
XFRM_POLICY_ALLOW PolicyAction = 0
XFRM_POLICY_BLOCK PolicyAction = 1
)
func (a PolicyAction) String() string {
switch a {
case XFRM_POLICY_ALLOW:
return "allow"
case XFRM_POLICY_BLOCK:
return "block"
default:
return fmt.Sprintf("action %d", a)
}
}
// 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
Action PolicyAction
Ifindex int
Ifid 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, Action: %s, Ifindex: %d, Ifid: %d, Mark: %s, Tmpls: %s}",
p.Dst, p.Src, p.Proto, p.DstPort, p.SrcPort, p.Dir, p.Priority, p.Index, p.Action, p.Ifindex, p.Ifid, p.Mark, p.Tmpls)
}