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mapping: allow lists to be mapped (#149)

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This commit is contained in:
Louis
2023-03-28 21:55:21 -07:00
committed by GitHub
parent 5529d4993b
commit 40e5ef08fd
6 changed files with 83 additions and 32 deletions
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4
cmd/goflow2/mapping.yaml
View File

@@ -6,6 +6,10 @@ ipfix:
destination: CustomInteger2
# penprovided: false
# pen: 0
- field: 137
destination: CustomList_1
penprovided: true
pen: 2636
netflowv9:
mapping:
- field: 7

11
format/common/text.go
View File

@@ -220,6 +220,17 @@ func FormatMessageReflectCustom(msg interface{}, ext, quotes, sep, sign string,
switch fieldValue.Kind() {
case reflect.String:
fstr[i] = fmt.Sprintf("%s%s%s%s%q", quotes, s, quotes, sign, fieldValue.Interface())
case reflect.Slice:
c := fieldValue.Len()
v := "["
for i := 0; i < c; i++ {
v += fmt.Sprintf("%v", fieldValue.Index(i).Interface())
if i < c-1 {
v += ","
}
}
v += "]"
fstr[i] = fmt.Sprintf("%s%s%s%s%s", quotes, s, quotes, sign, v)
default:
fstr[i] = fmt.Sprintf("%s%s%s%s%v", quotes, s, quotes, sign, fieldValue.Interface())
}

30
pb/flow.pb.go
View File

@@ -168,6 +168,7 @@ type FlowMessage struct {
CustomBytes_3 []byte `protobuf:"bytes,1013,opt,name=custom_bytes_3,json=customBytes3,proto3" json:"custom_bytes_3,omitempty"`
CustomBytes_4 []byte `protobuf:"bytes,1014,opt,name=custom_bytes_4,json=customBytes4,proto3" json:"custom_bytes_4,omitempty"`
CustomBytes_5 []byte `protobuf:"bytes,1015,opt,name=custom_bytes_5,json=customBytes5,proto3" json:"custom_bytes_5,omitempty"`
CustomList_1 []uint32 `protobuf:"varint,1021,rep,packed,name=custom_list_1,json=customList1,proto3" json:"custom_list_1,omitempty"`
}
func (x *FlowMessage) Reset() {
@@ -685,11 +686,18 @@ func (x *FlowMessage) GetCustomBytes_5() []byte {
return nil
}
func (x *FlowMessage) GetCustomList_1() []uint32 {
if x != nil {
return x.CustomList_1
}
return nil
}
var File_pb_flow_proto protoreflect.FileDescriptor
var file_pb_flow_proto_rawDesc = []byte{
0x0a, 0x0d, 0x70, 0x62, 0x2f, 0x66, 0x6c, 0x6f, 0x77, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
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0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x30, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18,
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@@ -835,15 +843,17 @@ var file_pb_flow_proto_rawDesc = []byte{
0x74, 0x6f, 0x6d, 0x42, 0x79, 0x74, 0x65, 0x73, 0x34, 0x12, 0x25, 0x0a, 0x0e, 0x63, 0x75, 0x73,
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}
var (

2
pb/flow.proto
View File

@@ -126,4 +126,6 @@ message FlowMessage {
bytes custom_bytes_4 = 1014;
bytes custom_bytes_5 = 1015;
repeated uint32 custom_list_1 = 1021;
}

30
producer/reflect.go
View File

@@ -41,6 +41,14 @@ func GetBytes(d []byte, offset int, length int) []byte {
return chunk
}
func IsUInt(k reflect.Kind) bool {
return k == reflect.Uint8 || k == reflect.Uint16 || k == reflect.Uint32 || k == reflect.Uint64
}
func IsInt(k reflect.Kind) bool {
return k == reflect.Int8 || k == reflect.Int16 || k == reflect.Int32 || k == reflect.Int64
}
func MapCustomNetFlow(flowMessage *flowmessage.FlowMessage, df netflow.DataField, mapper *NetFlowMapper) {
if mapper == nil {
return
@@ -62,11 +70,27 @@ func MapCustom(flowMessage *flowmessage.FlowMessage, v []byte, destination strin
typeDest := fieldValue.Type()
fieldValueAddr := fieldValue.Addr()
if typeDest.Kind() == reflect.Slice && typeDest.Elem().Kind() == reflect.Uint8 {
if typeDest.Kind() == reflect.Slice {
if typeDest.Elem().Kind() == reflect.Uint8 {
fieldValue.SetBytes(v)
} else if fieldValueAddr.IsValid() && (typeDest.Kind() == reflect.Uint8 || typeDest.Kind() == reflect.Uint16 || typeDest.Kind() == reflect.Uint32 || typeDest.Kind() == reflect.Uint64) {
} else {
item := reflect.New(typeDest.Elem())
if IsUInt(typeDest.Elem().Kind()) {
DecodeUNumber(v, item.Interface())
} else if IsUInt(typeDest.Elem().Kind()) {
DecodeUNumber(v, item.Interface())
}
itemi := reflect.Indirect(item)
tmpFieldValue := reflect.Append(fieldValue, itemi)
fieldValue.Set(tmpFieldValue)
}
} else if fieldValueAddr.IsValid() && IsUInt(typeDest.Kind()) {
DecodeUNumber(v, fieldValueAddr.Interface())
} else if fieldValueAddr.IsValid() && (typeDest.Kind() == reflect.Int8 || typeDest.Kind() == reflect.Int16 || typeDest.Kind() == reflect.Int32 || typeDest.Kind() == reflect.Int64) {
} else if fieldValueAddr.IsValid() && IsInt(typeDest.Kind()) {
DecodeNumber(v, fieldValueAddr.Interface())
}
}