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types.go
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/
types.go
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/*
* Copyright (c) 2024 Yunshan Networks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package datatype
import (
. "encoding/binary"
)
type PacketFlag uint16
func (f PacketFlag) IsSet(flag PacketFlag) bool {
return f&flag != 0
}
const (
CFLAG_MAC0 PacketFlag = 1 << iota
CFLAG_MAC1
CFLAG_VLANTAG
CFLAG_HEADER_TYPE
CFLAG_IP0
CFLAG_IP1
CFLAG_PORT0
CFLAG_PORT1
CFLAG_TTL
CFLAG_FLAGS_FRAG_OFFSET
CFLAG_DATAOFF_IHL
PFLAG_SRC_L3ENDPOINT
PFLAG_DST_L3ENDPOINT
PFLAG_SRC_ENDPOINT
PFLAG_DST_ENDPOINT
PFLAG_TUNNEL
PFLAG_NONE PacketFlag = 0
CFLAG_FULL = 0x7FF
)
type IPv4Int = uint32 // not native byte order
type MacInt = uint64 // not native byte order
func MacIntFromBytes(bytes []byte) MacInt {
return uint64(BigEndian.Uint32(bytes))<<16 | uint64(BigEndian.Uint16(bytes[4:]))
}