48   bool Write(uint8_t* buf, size_t buf_len) {  in Write()  argument
57     WriteFixedSubfield(static_cast<FixedSubfield>(ID_), buf);  in Write()
59                        buf + sizeof(FixedSubfield));  in Write()
60     memcpy(buf + kTagLenSize, data_, len_);  in Write()
63       memset(buf + fields_len, 0, pad_len);  in Write()
68   bool Read(const uint8_t* buf, size_t buf_len) {  in Read()  argument
71     ReadFixedSubfield(&field, buf);  in Read()
73     ReadFixedSubfield(&field, buf + sizeof(FixedSubfield));  in Read()
76     memcpy(data_, buf + kTagLenSize, len_);  in Read()
89   static size_t GetDataSizeFromSerialized(const uint8_t* buf) {  in GetDataSizeFromSerialized()  argument
91     ReadFixedSubfield(&len, buf + sizeof(FixedSubfield));  in GetDataSizeFromSerialized()
106   static void WriteFixedSubfield(FixedSubfield value, uint8_t* buf) {  in WriteFixedSubfield()  argument
107     buf[0] = value & 0xFF;  in WriteFixedSubfield()
108     buf[1] = (value >> 8) & 0xFF;  in WriteFixedSubfield()
110   static void ReadFixedSubfield(FixedSubfield* value, const uint8_t* buf) {  in ReadFixedSubfield()  argument
111     *value = buf[0] | buf[1] << 8;  in ReadFixedSubfield()