FTP Fields
| Protocol Field | pcre Writing Method | Field Type | Field Description | | :--------------- | :------- | :------- | ------------------------- | | ftp_cmd | CMD | Character string | FTP command code content | | ftp_cmd_len | / | Length | FTP command code length | | ftp_cmd_arg | CMD_ARG | Character string | FTP command content | | ftp_cmd_arg_len | / | Length | FTP command length | | ftp_code | / | Numeric value | FTP response code | | ftp_code_arg | CODE_ARG | Character string | FTP response text content | | ftp_code_arg_len | / | Length | FTP response text length |