diff --git a/model/meta/MetaCryptoType.go b/model/meta/MetaCryptoType.go
index 0668726..bc2a90d 100644
--- a/model/meta/MetaCryptoType.go
+++ b/model/meta/MetaCryptoType.go
@@ -12,3 +12,83 @@ type MetaCryptoType struct {
 	Key        string          `json:"key,omitempty"`
 	CreateDate *util.Timestamp `json:"createDate,omitempty"`
 }
+
+type MetaCryptoTypeEnum int
+
+const (
+	MetaCryptoTypeEnumNONE MetaCryptoTypeEnum = iota + 1
+	MetaCryptoTypeEnumUNKNOWN
+	MetaCryptoTypeEnumAES
+	MetaCryptoTypeEnumCIPHER
+	MetaCryptoTypeEnumDES
+	MetaCryptoTypeEnumDSA
+	MetaCryptoTypeEnumECDSA
+	MetaCryptoTypeEnumELLIPTIC
+	MetaCryptoTypeEnumHMAC
+	MetaCryptoTypeEnumMD5
+	MetaCryptoTypeEnumRAND
+	MetaCryptoTypeEnumRC4
+	MetaCryptoTypeEnumRSA
+	MetaCryptoTypeEnumSHA1
+	MetaCryptoTypeEnumSHA256
+	MetaCryptoTypeEnumSUBTLE
+	MetaCryptoTypeEnumTLS
+	MetaCryptoTypeEnumX509
+	MetaCryptoTypeEnumPKIX
+)
+
+var (
+	metaCryptoTypeEnumID = map[MetaCryptoTypeEnum]string{
+		MetaCryptoTypeEnumNONE:     "NONE",
+		MetaCryptoTypeEnumUNKNOWN:  "UNKNOWN",
+		MetaCryptoTypeEnumAES:      "AES",
+		MetaCryptoTypeEnumCIPHER:   "CIPHER",
+		MetaCryptoTypeEnumDES:      "DES",
+		MetaCryptoTypeEnumDSA:      "DSA",
+		MetaCryptoTypeEnumECDSA:    "ECDSA",
+		MetaCryptoTypeEnumELLIPTIC: "ELLIPTIC",
+		MetaCryptoTypeEnumHMAC:     "HMAC",
+		MetaCryptoTypeEnumMD5:      "MD5",
+		MetaCryptoTypeEnumRAND:     "RAND",
+		MetaCryptoTypeEnumRC4:      "RC4",
+		MetaCryptoTypeEnumRSA:      "RSA",
+		MetaCryptoTypeEnumSHA1:     "SHA1",
+		MetaCryptoTypeEnumSHA256:   "SHA256",
+		MetaCryptoTypeEnumSUBTLE:   "SUBTLE",
+		MetaCryptoTypeEnumTLS:      "TLS",
+		MetaCryptoTypeEnumX509:     "X509",
+		MetaCryptoTypeEnumPKIX:     "PKIX",
+	}
+
+	metaCryptoTypeEnumKey = map[string]MetaCryptoTypeEnum{
+		"NONE":     MetaCryptoTypeEnumNONE,
+		"UNKNOWN":  MetaCryptoTypeEnumUNKNOWN,
+		"AES":      MetaCryptoTypeEnumAES,
+		"CIPHER":   MetaCryptoTypeEnumCIPHER,
+		"DES":      MetaCryptoTypeEnumDES,
+		"DSA":      MetaCryptoTypeEnumDSA,
+		"ECDSA":    MetaCryptoTypeEnumECDSA,
+		"ELLIPTIC": MetaCryptoTypeEnumELLIPTIC,
+		"HMAC":     MetaCryptoTypeEnumHMAC,
+		"MD5":      MetaCryptoTypeEnumMD5,
+		"RAND":     MetaCryptoTypeEnumRAND,
+		"RC4":      MetaCryptoTypeEnumRC4,
+		"RSA":      MetaCryptoTypeEnumRSA,
+		"SHA1":     MetaCryptoTypeEnumSHA1,
+		"SHA256":   MetaCryptoTypeEnumSHA256,
+		"SUBTLE":   MetaCryptoTypeEnumSUBTLE,
+		"TLS":      MetaCryptoTypeEnumTLS,
+		"X509":     MetaCryptoTypeEnumX509,
+		"PKIX":     MetaCryptoTypeEnumPKIX,
+	}
+)
+
+func ToMetaCryptoTypeEnum(v *MetaCryptoType) MetaCryptoTypeEnum {
+	return metaCryptoTypeEnumKey[v.Key]
+}
+
+func ToMetaCryptoType(v MetaCryptoTypeEnum) *MetaCryptoType {
+	return &MetaCryptoType{
+		Key: metaCryptoTypeEnumID[v],
+	}
+}
diff --git a/model/meta/MetaIPType.go b/model/meta/MetaIPType.go
index 4b9c50b..f3cbbae 100644
--- a/model/meta/MetaIPType.go
+++ b/model/meta/MetaIPType.go
@@ -16,8 +16,8 @@ type MetaIPType struct {
 type MetaIPTypeEnum int
 
 const (
-	MetaIPTypeEnumV4 MetaIPTypeEnum = 1
-	MetaIPTypeEnumV6 MetaIPTypeEnum = 2
+	MetaIPTypeEnumV4 MetaIPTypeEnum = iota + 1
+	MetaIPTypeEnumV6
 )
 
 var (
diff --git a/model/meta/MetaInfraType.go b/model/meta/MetaInfraType.go
index 01f6616..d33ddd3 100644
--- a/model/meta/MetaInfraType.go
+++ b/model/meta/MetaInfraType.go
@@ -16,9 +16,9 @@ type MetaInfraType struct {
 type MetaInfraTypeEnum int
 
 const (
-	MetaInfraTypeEnumZONE    MetaInfraTypeEnum = 1
-	MetaInfraTypeEnumHOST    MetaInfraTypeEnum = 2
-	MetaInfraTypeEnumService MetaInfraTypeEnum = 3
+	MetaInfraTypeEnumZONE MetaInfraTypeEnum = iota + 1
+	MetaInfraTypeEnumHOST
+	MetaInfraTypeEnumService
 )
 
 var (
diff --git a/model/meta/MetaMemberStatus.go b/model/meta/MetaMemberStatus.go
index 0fe8cfe..f9d7c06 100644
--- a/model/meta/MetaMemberStatus.go
+++ b/model/meta/MetaMemberStatus.go
@@ -16,10 +16,10 @@ type MetaMemberStatus struct {
 type MetaMemberStatusEnum int
 
 const (
-	MetaMemberStatusEnumNOAUTH     MetaMemberStatusEnum = 1
-	MetaMemberStatusEnumNORMAL     MetaMemberStatusEnum = 2
-	MetaMemberStatusEnumDORMANCY   MetaMemberStatusEnum = 3
-	MetaMemberStatusEnumWITHDRAWAL MetaMemberStatusEnum = 4
+	MetaMemberStatusEnumNOAUTH MetaMemberStatusEnum = iota + 1
+	MetaMemberStatusEnumNORMAL
+	MetaMemberStatusEnumDORMANCY
+	MetaMemberStatusEnumWITHDRAWAL
 )
 
 var (
diff --git a/model/meta/MetaNoAuthProbeStatus.go b/model/meta/MetaNoAuthProbeStatus.go
index a39db6c..555f2ed 100644
--- a/model/meta/MetaNoAuthProbeStatus.go
+++ b/model/meta/MetaNoAuthProbeStatus.go
@@ -16,9 +16,9 @@ type MetaNoAuthProbeStatus struct {
 type NoAuthProbeStatusEnum int
 
 const (
-	NoAuthProbeStatusEnumACCEPT     NoAuthProbeStatusEnum = 1
-	NoAuthProbeStatusEnumDENY       NoAuthProbeStatusEnum = 2
-	NoAuthProbeStatusEnumPROCESSING NoAuthProbeStatusEnum = 3
+	NoAuthProbeStatusEnumACCEPT NoAuthProbeStatusEnum = iota + 1
+	NoAuthProbeStatusEnumDENY
+	NoAuthProbeStatusEnumPROCESSING
 )
 
 var (
diff --git a/model/meta/MetaPortType.go b/model/meta/MetaPortType.go
index a4edbc6..7c3fde8 100644
--- a/model/meta/MetaPortType.go
+++ b/model/meta/MetaPortType.go
@@ -16,8 +16,8 @@ type MetaPortType struct {
 type MetaPortTypeEnum int
 
 const (
-	MetaPortTypeEnumTCP MetaPortTypeEnum = 1
-	MetaPortTypeEnumUDP MetaPortTypeEnum = 2
+	MetaPortTypeEnumTCP MetaPortTypeEnum = iota + 1
+	MetaPortTypeEnumUDP
 )
 
 var (
diff --git a/model/meta/MetaProbeStatus.go b/model/meta/MetaProbeStatus.go
index 471bb0a..b88ee05 100644
--- a/model/meta/MetaProbeStatus.go
+++ b/model/meta/MetaProbeStatus.go
@@ -16,8 +16,8 @@ type MetaProbeStatus struct {
 type MetaProbeStatusEnum int
 
 const (
-	MetaProbeStatusEnumINITIAL MetaProbeStatusEnum = 1
-	MetaProbeStatusEnumNORMAL  MetaProbeStatusEnum = 2
+	MetaProbeStatusEnumINITIAL MetaProbeStatusEnum = iota + 1
+	MetaProbeStatusEnumNORMAL
 )
 
 var (
diff --git a/model/meta/MetaTargetHostType.go b/model/meta/MetaTargetHostType.go
index 65332b2..a1d2e52 100644
--- a/model/meta/MetaTargetHostType.go
+++ b/model/meta/MetaTargetHostType.go
@@ -7,7 +7,7 @@ type MetaTargetHostType struct {
 type MetaTargetHostTypeEnum int
 
 const (
-	MetaTargetHostTypeEnumUNKNOWN MetaTargetHostTypeEnum = 100
+	MetaTargetHostTypeEnumUNKNOWN MetaTargetHostTypeEnum = iota + 1
 )
 
 var (
diff --git a/model/meta/MetaTargetServiceType.go b/model/meta/MetaTargetServiceType.go
index 78a3735..d52352b 100644
--- a/model/meta/MetaTargetServiceType.go
+++ b/model/meta/MetaTargetServiceType.go
@@ -7,7 +7,7 @@ type MetaTargetServiceType struct {
 type MetaTargetServiceTypeEnum int
 
 const (
-	MetaTargetServiceTypeEnumUNKNOWN MetaTargetServiceTypeEnum = 1000
+	MetaTargetServiceTypeEnumUNKNOWN MetaTargetServiceTypeEnum = iota + 1
 )
 
 var (
diff --git a/model/meta/MetaTargetZoneType.go b/model/meta/MetaTargetZoneType.go
index af30a39..ab9d9a9 100644
--- a/model/meta/MetaTargetZoneType.go
+++ b/model/meta/MetaTargetZoneType.go
@@ -7,8 +7,8 @@ type MetaTargetZoneType struct {
 type MetaTargetZoneTypeEnum int
 
 const (
-	MetaTargetZoneTypeEnumUNKNOWN MetaTargetZoneTypeEnum = 1
-	MetaTargetZoneTypeEnumZONE    MetaTargetZoneTypeEnum = 2
+	MetaTargetZoneTypeEnumUNKNOWN MetaTargetZoneTypeEnum = iota + 1
+	MetaTargetZoneTypeEnumZONE
 )
 
 var (