335 lines
7.7 KiB
Go
335 lines
7.7 KiB
Go
package nl
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import (
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"unsafe"
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)
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const (
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SizeofXfrmUsersaId = 0x18
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SizeofXfrmStats = 0x0c
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SizeofXfrmUsersaInfo = 0xe0
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SizeofXfrmUserSpiInfo = 0xe8
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SizeofXfrmAlgo = 0x44
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SizeofXfrmAlgoAuth = 0x48
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SizeofXfrmAlgoAEAD = 0x48
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SizeofXfrmEncapTmpl = 0x18
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SizeofXfrmUsersaFlush = 0x8
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SizeofXfrmReplayStateEsn = 0x18
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)
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const (
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XFRM_STATE_NOECN = 1
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XFRM_STATE_DECAP_DSCP = 2
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XFRM_STATE_NOPMTUDISC = 4
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XFRM_STATE_WILDRECV = 8
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XFRM_STATE_ICMP = 16
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XFRM_STATE_AF_UNSPEC = 32
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XFRM_STATE_ALIGN4 = 64
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XFRM_STATE_ESN = 128
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)
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// struct xfrm_usersa_id {
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// xfrm_address_t daddr;
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// __be32 spi;
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// __u16 family;
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// __u8 proto;
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// };
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type XfrmUsersaId struct {
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Daddr XfrmAddress
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Spi uint32 // big endian
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Family uint16
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Proto uint8
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Pad byte
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}
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func (msg *XfrmUsersaId) Len() int {
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return SizeofXfrmUsersaId
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}
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func DeserializeXfrmUsersaId(b []byte) *XfrmUsersaId {
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return (*XfrmUsersaId)(unsafe.Pointer(&b[0:SizeofXfrmUsersaId][0]))
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}
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func (msg *XfrmUsersaId) Serialize() []byte {
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return (*(*[SizeofXfrmUsersaId]byte)(unsafe.Pointer(msg)))[:]
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}
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// struct xfrm_stats {
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// __u32 replay_window;
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// __u32 replay;
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// __u32 integrity_failed;
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// };
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type XfrmStats struct {
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ReplayWindow uint32
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Replay uint32
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IntegrityFailed uint32
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}
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func (msg *XfrmStats) Len() int {
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return SizeofXfrmStats
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}
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func DeserializeXfrmStats(b []byte) *XfrmStats {
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return (*XfrmStats)(unsafe.Pointer(&b[0:SizeofXfrmStats][0]))
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}
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func (msg *XfrmStats) Serialize() []byte {
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return (*(*[SizeofXfrmStats]byte)(unsafe.Pointer(msg)))[:]
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}
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// struct xfrm_usersa_info {
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// struct xfrm_selector sel;
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// struct xfrm_id id;
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// xfrm_address_t saddr;
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// struct xfrm_lifetime_cfg lft;
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// struct xfrm_lifetime_cur curlft;
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// struct xfrm_stats stats;
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// __u32 seq;
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// __u32 reqid;
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// __u16 family;
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// __u8 mode; /* XFRM_MODE_xxx */
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// __u8 replay_window;
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// __u8 flags;
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// #define XFRM_STATE_NOECN 1
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// #define XFRM_STATE_DECAP_DSCP 2
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// #define XFRM_STATE_NOPMTUDISC 4
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// #define XFRM_STATE_WILDRECV 8
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// #define XFRM_STATE_ICMP 16
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// #define XFRM_STATE_AF_UNSPEC 32
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// #define XFRM_STATE_ALIGN4 64
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// #define XFRM_STATE_ESN 128
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// };
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//
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// #define XFRM_SA_XFLAG_DONT_ENCAP_DSCP 1
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//
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type XfrmUsersaInfo struct {
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Sel XfrmSelector
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Id XfrmId
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Saddr XfrmAddress
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Lft XfrmLifetimeCfg
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Curlft XfrmLifetimeCur
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Stats XfrmStats
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Seq uint32
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Reqid uint32
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Family uint16
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Mode uint8
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ReplayWindow uint8
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Flags uint8
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Pad [7]byte
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}
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func (msg *XfrmUsersaInfo) Len() int {
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return SizeofXfrmUsersaInfo
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}
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func DeserializeXfrmUsersaInfo(b []byte) *XfrmUsersaInfo {
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return (*XfrmUsersaInfo)(unsafe.Pointer(&b[0:SizeofXfrmUsersaInfo][0]))
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}
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func (msg *XfrmUsersaInfo) Serialize() []byte {
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return (*(*[SizeofXfrmUsersaInfo]byte)(unsafe.Pointer(msg)))[:]
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}
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// struct xfrm_userspi_info {
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// struct xfrm_usersa_info info;
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// __u32 min;
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// __u32 max;
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// };
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type XfrmUserSpiInfo struct {
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XfrmUsersaInfo XfrmUsersaInfo
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Min uint32
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Max uint32
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}
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func (msg *XfrmUserSpiInfo) Len() int {
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return SizeofXfrmUserSpiInfo
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}
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func DeserializeXfrmUserSpiInfo(b []byte) *XfrmUserSpiInfo {
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return (*XfrmUserSpiInfo)(unsafe.Pointer(&b[0:SizeofXfrmUserSpiInfo][0]))
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}
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func (msg *XfrmUserSpiInfo) Serialize() []byte {
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return (*(*[SizeofXfrmUserSpiInfo]byte)(unsafe.Pointer(msg)))[:]
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}
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// struct xfrm_algo {
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// char alg_name[64];
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// unsigned int alg_key_len; /* in bits */
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// char alg_key[0];
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// };
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type XfrmAlgo struct {
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AlgName [64]byte
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AlgKeyLen uint32
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AlgKey []byte
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}
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func (msg *XfrmAlgo) Len() int {
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return SizeofXfrmAlgo + int(msg.AlgKeyLen/8)
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}
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func DeserializeXfrmAlgo(b []byte) *XfrmAlgo {
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ret := XfrmAlgo{}
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copy(ret.AlgName[:], b[0:64])
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ret.AlgKeyLen = *(*uint32)(unsafe.Pointer(&b[64]))
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ret.AlgKey = b[68:ret.Len()]
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return &ret
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}
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func (msg *XfrmAlgo) Serialize() []byte {
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b := make([]byte, msg.Len())
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copy(b[0:64], msg.AlgName[:])
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copy(b[64:68], (*(*[4]byte)(unsafe.Pointer(&msg.AlgKeyLen)))[:])
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copy(b[68:msg.Len()], msg.AlgKey[:])
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return b
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}
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// struct xfrm_algo_auth {
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// char alg_name[64];
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// unsigned int alg_key_len; /* in bits */
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// unsigned int alg_trunc_len; /* in bits */
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// char alg_key[0];
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// };
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type XfrmAlgoAuth struct {
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AlgName [64]byte
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AlgKeyLen uint32
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AlgTruncLen uint32
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AlgKey []byte
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}
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func (msg *XfrmAlgoAuth) Len() int {
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return SizeofXfrmAlgoAuth + int(msg.AlgKeyLen/8)
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}
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func DeserializeXfrmAlgoAuth(b []byte) *XfrmAlgoAuth {
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ret := XfrmAlgoAuth{}
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copy(ret.AlgName[:], b[0:64])
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ret.AlgKeyLen = *(*uint32)(unsafe.Pointer(&b[64]))
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ret.AlgTruncLen = *(*uint32)(unsafe.Pointer(&b[68]))
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ret.AlgKey = b[72:ret.Len()]
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return &ret
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}
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func (msg *XfrmAlgoAuth) Serialize() []byte {
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b := make([]byte, msg.Len())
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copy(b[0:64], msg.AlgName[:])
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copy(b[64:68], (*(*[4]byte)(unsafe.Pointer(&msg.AlgKeyLen)))[:])
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copy(b[68:72], (*(*[4]byte)(unsafe.Pointer(&msg.AlgTruncLen)))[:])
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copy(b[72:msg.Len()], msg.AlgKey[:])
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return b
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}
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// struct xfrm_algo_aead {
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// char alg_name[64];
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// unsigned int alg_key_len; /* in bits */
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// unsigned int alg_icv_len; /* in bits */
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// char alg_key[0];
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// }
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type XfrmAlgoAEAD struct {
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AlgName [64]byte
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AlgKeyLen uint32
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AlgICVLen uint32
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AlgKey []byte
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}
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func (msg *XfrmAlgoAEAD) Len() int {
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return SizeofXfrmAlgoAEAD + int(msg.AlgKeyLen/8)
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}
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func DeserializeXfrmAlgoAEAD(b []byte) *XfrmAlgoAEAD {
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ret := XfrmAlgoAEAD{}
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copy(ret.AlgName[:], b[0:64])
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ret.AlgKeyLen = *(*uint32)(unsafe.Pointer(&b[64]))
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ret.AlgICVLen = *(*uint32)(unsafe.Pointer(&b[68]))
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ret.AlgKey = b[72:ret.Len()]
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return &ret
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}
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func (msg *XfrmAlgoAEAD) Serialize() []byte {
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b := make([]byte, msg.Len())
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copy(b[0:64], msg.AlgName[:])
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copy(b[64:68], (*(*[4]byte)(unsafe.Pointer(&msg.AlgKeyLen)))[:])
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copy(b[68:72], (*(*[4]byte)(unsafe.Pointer(&msg.AlgICVLen)))[:])
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copy(b[72:msg.Len()], msg.AlgKey[:])
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return b
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}
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// struct xfrm_encap_tmpl {
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// __u16 encap_type;
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// __be16 encap_sport;
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// __be16 encap_dport;
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// xfrm_address_t encap_oa;
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// };
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type XfrmEncapTmpl struct {
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EncapType uint16
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EncapSport uint16 // big endian
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EncapDport uint16 // big endian
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Pad [2]byte
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EncapOa XfrmAddress
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}
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func (msg *XfrmEncapTmpl) Len() int {
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return SizeofXfrmEncapTmpl
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}
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func DeserializeXfrmEncapTmpl(b []byte) *XfrmEncapTmpl {
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return (*XfrmEncapTmpl)(unsafe.Pointer(&b[0:SizeofXfrmEncapTmpl][0]))
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}
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func (msg *XfrmEncapTmpl) Serialize() []byte {
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return (*(*[SizeofXfrmEncapTmpl]byte)(unsafe.Pointer(msg)))[:]
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}
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// struct xfrm_usersa_flush {
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// __u8 proto;
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// };
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type XfrmUsersaFlush struct {
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Proto uint8
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}
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func (msg *XfrmUsersaFlush) Len() int {
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return SizeofXfrmUsersaFlush
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}
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func DeserializeXfrmUsersaFlush(b []byte) *XfrmUsersaFlush {
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return (*XfrmUsersaFlush)(unsafe.Pointer(&b[0:SizeofXfrmUsersaFlush][0]))
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}
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func (msg *XfrmUsersaFlush) Serialize() []byte {
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return (*(*[SizeofXfrmUsersaFlush]byte)(unsafe.Pointer(msg)))[:]
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}
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// struct xfrm_replay_state_esn {
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// unsigned int bmp_len;
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// __u32 oseq;
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// __u32 seq;
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// __u32 oseq_hi;
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// __u32 seq_hi;
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// __u32 replay_window;
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// __u32 bmp[0];
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// };
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type XfrmReplayStateEsn struct {
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BmpLen uint32
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OSeq uint32
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Seq uint32
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OSeqHi uint32
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SeqHi uint32
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ReplayWindow uint32
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Bmp []uint32
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}
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func (msg *XfrmReplayStateEsn) Serialize() []byte {
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// We deliberately do not pass Bmp, as it gets set by the kernel.
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return (*(*[SizeofXfrmReplayStateEsn]byte)(unsafe.Pointer(msg)))[:]
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}
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