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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2025-present Eclipse ThreadX Contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Duo Component */
/** */
/** File Transfer Protocol (FTP) */
/** */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/* */
/* APPLICATION INTERFACE DEFINITION RELEASE */
/* */
/* nxd_ftp_server.h PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This file defines the NetX Duo File Transfer Protocol (FTP over */
/* IPv6) component, including all data types and external references. */
/* It is assumed that nx_api.h and nx_port.h have already been */
/* included, along with fx_api.h and fx_port.h. */
/* */
/**************************************************************************/
#ifndef NXD_FTP_SERVER_H
#define NXD_FTP_SERVER_H
/* Determine if a C++ compiler is being used. If so, ensure that standard
C is used to process the API information. */
#ifdef __cplusplus
/* Yes, C++ compiler is present. Use standard C. */
extern "C" {
#endif
#include "nx_api.h"
#ifndef NX_FTP_NO_FILEX
#include "fx_api.h"
#else
#include "filex_stub.h"
#endif
/* Define the FTP Server ID. */
#define NXD_FTP_SERVER_ID 0x46545201UL
/* Define the maximum number of clients the FTP Server can accommodate. */
#ifndef NX_FTP_MAX_CLIENTS
#define NX_FTP_MAX_CLIENTS 4
#endif
/* Define FTP TCP socket create options. */
#ifndef NX_FTP_CONTROL_TOS
#define NX_FTP_CONTROL_TOS NX_IP_NORMAL
#endif
#ifndef NX_FTP_DATA_TOS
#define NX_FTP_DATA_TOS NX_IP_NORMAL
#endif
#ifndef NX_FTP_FRAGMENT_OPTION
#define NX_FTP_FRAGMENT_OPTION NX_DONT_FRAGMENT
#endif
#ifndef NX_FTP_CONTROL_WINDOW_SIZE
#define NX_FTP_CONTROL_WINDOW_SIZE 400
#endif
#ifndef NX_FTP_DATA_WINDOW_SIZE
#define NX_FTP_DATA_WINDOW_SIZE 2048
#endif
#ifndef NX_FTP_TIME_TO_LIVE
#define NX_FTP_TIME_TO_LIVE 0x80
#endif
#ifndef NX_FTP_SERVER_TIMEOUT
#define NX_FTP_SERVER_TIMEOUT NX_IP_PERIODIC_RATE
#endif
#ifndef NX_FTP_SERVER_PRIORITY
#define NX_FTP_SERVER_PRIORITY 16
#endif
#ifndef NX_FTP_SERVER_TIME_SLICE
#define NX_FTP_SERVER_TIME_SLICE 2
#endif
#ifndef NX_FTP_USERNAME_SIZE
#define NX_FTP_USERNAME_SIZE 20
#endif
#ifndef NX_FTP_PASSWORD_SIZE
#define NX_FTP_PASSWORD_SIZE 20
#endif
#ifndef NX_FTP_ACTIVITY_TIMEOUT
#define NX_FTP_ACTIVITY_TIMEOUT 240 /* Seconds allowed with no activity */
#endif
#ifndef NX_FTP_TIMEOUT_PERIOD
#define NX_FTP_TIMEOUT_PERIOD 60 /* Number of seconds to check */
#endif
#ifndef NX_PHYSICAL_TRAILER
#define NX_PHYSICAL_TRAILER 4 /* Number of bytes to reserve at the end of buffer */
#endif
/* Define the FTP data port retry parameters. */
#ifndef NX_FTP_SERVER_RETRY_SECONDS
#define NX_FTP_SERVER_RETRY_SECONDS 2 /* 2 second initial timeout */
#endif
#ifndef NX_FTP_SERVER_TRANSMIT_QUEUE_DEPTH
#define NX_FTP_SERVER_TRANSMIT_QUEUE_DEPTH 20 /* Maximum of 20 queued transmit packets */
#endif
#ifndef NX_FTP_SERVER_RETRY_MAX
#define NX_FTP_SERVER_RETRY_MAX 10 /* Maximum of 10 retries per packet */
#endif
#ifndef NX_FTP_SERVER_RETRY_SHIFT
#define NX_FTP_SERVER_RETRY_SHIFT 1 /* Every retry is twice as long */
#endif
/* The minimum FTP Server packet size must accomodate the largest expected packet sent e.g. the LIST command:
The filename can be up to 256 bytes, plus file info (which has a fixed size of 52 bytes).
Note the 256 value is the assumed max size of a filename, defined by FX_MAX_LONG_NAME_LEN.
.
File download (data) packets can be split up over multiple packets, but commands should be in one packet. */
#ifndef NX_FTP_SERVER_MIN_PACKET_PAYLOAD
#define NX_FTP_SERVER_MIN_PACKET_PAYLOAD (256 + 52 + NX_TCP_PACKET + NX_PHYSICAL_TRAILER)
#endif
/* Define open types. */
#define NX_FTP_OPEN_FOR_READ 0x01 /* FTP file open for reading */
#define NX_FTP_OPEN_FOR_WRITE 0x02 /* FTP file open for writing */
/* Define transfer modes. Note: just support stream mode and block mode yet. */
#define NX_FTP_TRANSFER_MODE_STREAM 0 /* FTP stream transfer mode */
#define NX_FTP_TRANSFER_MODE_BLOCK 1 /* FTP block transfer mode */
#define NX_FTP_TRANSFER_MODE_COMPRESSED 2 /* FTP compressed transfer mode */
/* Define Server thread events. */
#define NX_FTP_SERVER_CONNECT 0x01 /* FTP connection is present */
#define NX_FTP_SERVER_DATA_DISCONNECT 0x02 /* FTP data disconnection is present */
#define NX_FTP_SERVER_COMMAND 0x04 /* FTP client command is present */
#define NX_FTP_SERVER_DATA 0x08 /* FTP client data is present */
#define NX_FTP_SERVER_ACTIVITY_TIMEOUT 0x10 /* FTP activity timeout check */
#define NX_FTP_SERVER_CONTROL_DISCONNECT 0x20 /* FTP client disconnect of control socket */
#define NX_FTP_STOP_EVENT 0x40 /* FTP stop service */
#define NX_FTP_ANY_EVENT 0xFF /* Any FTP event */
/* Define return code constants. */
#define NX_FTP_ERROR 0xD0 /* Generic FTP internal error - deprecated */
#define NX_FTP_TIMEOUT 0xD1 /* FTP timeout occurred */
#define NX_FTP_FAILED 0xD2 /* FTP error */
#define NX_FTP_NOT_CONNECTED 0xD3 /* FTP not connected error */
#define NX_FTP_NOT_DISCONNECTED 0xD4 /* FTP not disconnected error */
#define NX_FTP_NOT_OPEN 0xD5 /* FTP not opened error */
#define NX_FTP_NOT_CLOSED 0xD6 /* FTP not closed error */
#define NX_FTP_END_OF_FILE 0xD7 /* FTP end of file status */
#define NX_FTP_END_OF_LISTING 0xD8 /* FTP end of directory listing status */
#define NX_FTP_EXPECTED_1XX_CODE 0xD9 /* Expected a 1xx response from server */
#define NX_FTP_EXPECTED_2XX_CODE 0xDA /* Expected a 2xx response from server */
#define NX_FTP_EXPECTED_22X_CODE 0xDB /* Expected a 22x response from server */
#define NX_FTP_EXPECTED_23X_CODE 0xDC /* Expected a 23x response from server */
#define NX_FTP_EXPECTED_3XX_CODE 0xDD /* Expected a 3xx response from server */
#define NX_FTP_EXPECTED_33X_CODE 0xDE /* Expected a 33x response from server */
#define NX_FTP_INVALID_NUMBER 0xDF /* Extraced an invalid number from server response */
#define NX_FTP_INVALID_ADDRESS 0x1D0 /* Invalid IP address parsed from FTP command */
#define NX_FTP_INVALID_COMMAND 0x1D1 /* Invalid FTP command (bad syntax, unknown command) */
#define NX_FTP_INVALID_LOGIN 0x1D2 /* Unable to perform successful user login */
#define NX_FTP_INSUFFICIENT_PACKET_PAYLOAD 0x1D3 /* Packet payload less than the max length filename */
#define NX_FTP_SERVER_INVALID_SIZE 0x1D4 /* Invalid FTP file size */
#define NX_FTP_SERVER_END_OF_BLOCK 0x1D5 /* FTP end of block */
/* Define FTP connection states. */
#define NX_FTP_STATE_NOT_CONNECTED 1 /* FTP not connected */
#define NX_FTP_STATE_CONNECTED 2 /* FTP connected */
#define NX_FTP_STATE_OPEN 3 /* FTP file open for reading */
#define NX_FTP_STATE_WRITE_OPEN 4 /* FTP file open for writing */
/* Define the FTP Server TCP port numbers. */
#define NX_FTP_SERVER_CONTROL_PORT 21 /* Control Port for FTP server */
#define NX_FTP_SERVER_DATA_PORT 20 /* Data Port for FTP server */
/* Define the size for buffer to store an IPv6 address represented in ASCII. */
#define NX_FTP_IPV6_ADDRESS_BUFSIZE 60
/* Define the FTP basic commands. The ASCII command will be parsed and converted to the numerical
representation shown below. */
#define NX_FTP_NOOP 0
#define NX_FTP_USER 1
#define NX_FTP_PASS 2
#define NX_FTP_QUIT 3
#define NX_FTP_RETR 4
#define NX_FTP_STOR 5
#define NX_FTP_RNFR 6
#define NX_FTP_RNTO 7
#define NX_FTP_DELE 8
#define NX_FTP_RMD 9
#define NX_FTP_MKD 10
#define NX_FTP_NLST 11
#define NX_FTP_PORT 12
#define NX_FTP_CWD 13
#define NX_FTP_PWD 14
#define NX_FTP_TYPE 15
#define NX_FTP_LIST 16
#define NX_FTP_CDUP 17
#define NX_FTP_INVALID 18
#define NX_FTP_EPRT 19
#define NX_FTP_PASV 20
#define NX_FTP_EPSV 21
#define NX_FTP_MODE 22
/* Define the per client request structure for the FTP Server data structure. */
typedef struct NX_FTP_CLIENT_REQUEST_STRUCT
{
UINT nx_ftp_client_request_data_port; /* Client's data port */
UINT nx_ftp_client_request_ip_type; /* Client IP type (IPv4 or IPv6) */
UINT nx_ftp_client_request_open_type; /* Open type of client request */
UINT nx_ftp_client_request_authenticated; /* Authenticated flag */
CHAR nx_ftp_client_request_read_only; /* Read-only flag */
CHAR nx_ftp_client_request_transfer_type; /* FTP Data transfer type */
CHAR nx_ftp_client_request_login; /* FTP Login flag */
CHAR nx_ftp_client_request_passive_transfer_enabled; /* Client enabled for passive transfer */
UINT nx_ftp_client_request_transfer_mode; /* Client transfer mode */
ULONG nx_ftp_client_request_activity_timeout; /* Timeout for client activity */
ULONG nx_ftp_client_request_total_bytes; /* Total bytes read or written */
ULONG nx_ftp_client_request_block_bytes; /* Block bytes in block mode */
CHAR nx_ftp_client_request_username[NX_FTP_USERNAME_SIZE];
CHAR nx_ftp_client_request_password[NX_FTP_PASSWORD_SIZE];
NX_PACKET *nx_ftp_client_request_packet; /* Previous request packet */
FX_FILE nx_ftp_client_request_file; /* File control block */
FX_LOCAL_PATH nx_ftp_client_local_path; /* Local path control block */
NX_TCP_SOCKET nx_ftp_client_request_control_socket; /* Client control socket */
NX_TCP_SOCKET nx_ftp_client_request_data_socket; /* Client data socket */
} NX_FTP_CLIENT_REQUEST;
/* Define the FTP Server data structure. */
typedef struct NX_FTP_SERVER_STRUCT
{
ULONG nx_ftp_server_id; /* FTP Server ID */
CHAR *nx_ftp_server_name; /* Name of this FTP server */
NX_IP *nx_ftp_server_ip_ptr; /* Pointer to associated IP structure */
NX_PACKET_POOL *nx_ftp_server_packet_pool_ptr; /* Pointer to FTP server packet pool */
FX_MEDIA *nx_ftp_server_media_ptr; /* Pointer to media control block */
ULONG nx_ftp_server_connection_requests; /* Number of connection requests */
ULONG nx_ftp_server_disconnection_requests; /* Number of disconnection requests */
ULONG nx_ftp_server_login_errors; /* Number of login errors */
ULONG nx_ftp_server_authentication_errors; /* Number of access w/o authentication */
ULONG nx_ftp_server_total_bytes_sent; /* Number of total bytes sent */
ULONG nx_ftp_server_total_bytes_received; /* Number of total bytes received */
ULONG nx_ftp_server_unknown_commands; /* Number of unknown commands received */
ULONG nx_ftp_server_allocation_errors; /* Number of allocation errors */
ULONG nx_ftp_server_relisten_errors; /* Number of relisten errors */
ULONG nx_ftp_server_activity_timeouts; /* Number of activity timeouts */
UINT nx_ftp_server_data_port; /* Port the data socket binds */
NX_FTP_CLIENT_REQUEST /* FTP client request array */
nx_ftp_server_client_list[NX_FTP_MAX_CLIENTS];
TX_EVENT_FLAGS_GROUP
nx_ftp_server_event_flags; /* FTP server thread events */
TX_TIMER nx_ftp_server_timer; /* FTP server activity timeout timer */
TX_THREAD nx_ftp_server_thread; /* FTP server thread */
UINT (*nx_ftp_login)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info);
UINT (*nx_ftp_logout)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info);
#ifndef NX_DISABLE_IPV4
UINT (*nx_ftp_login_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info);
UINT (*nx_ftp_logout_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info);
#endif /* NX_DISABLE_IPV4 */
struct NX_FTP_SERVER_STRUCT
*nx_ftp_next_server_ptr,
*nx_ftp_previous_server_ptr;
} NX_FTP_SERVER;
#ifndef NX_FTP_SOURCE_CODE
/* Application caller is present, perform API mapping. */
/* Determine if error checking is desired. If so, map API functions
to the appropriate error checking front-ends. Otherwise, map API
functions to the core functions that actually perform the work.
Note: error checking is enabled by default. */
#ifdef NX_DISABLE_ERROR_CHECKING
/* Services without error checking. */
#define nx_ftp_server_create _nx_ftp_server_create
#define nxd_ftp_server_create _nxd_ftp_server_create
#define nx_ftp_server_delete _nx_ftp_server_delete
#define nx_ftp_server_start _nx_ftp_server_start
#define nx_ftp_server_stop _nx_ftp_server_stop
#else
/* Services with error checking. */
#define nx_ftp_server_create _nxe_ftp_server_create
#define nxd_ftp_server_create _nxde_ftp_server_create
#define nx_ftp_server_delete _nxe_ftp_server_delete
#define nx_ftp_server_start _nxe_ftp_server_start
#define nx_ftp_server_stop _nxe_ftp_server_stop
#endif
/* Define the prototypes accessible to the application software. */
UINT nx_ftp_server_create(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_ip_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_ip_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
UINT nxd_ftp_server_create(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
UINT nx_ftp_server_delete(NX_FTP_SERVER *ftp_server_ptr);
UINT nx_ftp_server_start(NX_FTP_SERVER *ftp_server_ptr);
UINT nx_ftp_server_stop(NX_FTP_SERVER *ftp_server_ptr);
#else
/* FTP source code is being compiled, do not perform any API mapping. */
UINT _nxe_ftp_server_create(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_ip_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_ip_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
UINT _nx_ftp_server_create(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_ip_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout_ipv4)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, ULONG client_ip_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
UINT _nxde_ftp_server_create(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
UINT _nxd_ftp_server_create(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_ipduo_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
UINT _nxe_ftp_server_delete(NX_FTP_SERVER *ftp_server_ptr);
UINT _nx_ftp_server_delete(NX_FTP_SERVER *ftp_server_ptr);
UINT _nxe_ftp_server_start(NX_FTP_SERVER *ftp_server_ptr);
UINT _nx_ftp_server_start(NX_FTP_SERVER *ftp_server_ptr);
UINT _nxe_ftp_server_stop(NX_FTP_SERVER *ftp_server_ptr);
UINT _nx_ftp_server_stop(NX_FTP_SERVER *ftp_server_ptr);
/* Internal FTP functions. */
UINT _nx_ftp_server_create_internal(NX_FTP_SERVER *ftp_server_ptr, CHAR *ftp_server_name, NX_IP *ip_ptr, FX_MEDIA *media_ptr, VOID *stack_ptr, ULONG stack_size, NX_PACKET_POOL *pool_ptr,
UINT (*ftp_login)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info),
UINT (*ftp_logout)(struct NX_FTP_SERVER_STRUCT *ftp_server_ptr, NXD_ADDRESS *client_address, UINT client_port, CHAR *name, CHAR *password, CHAR *extra_info));
VOID _nx_ftp_server_response(NX_TCP_SOCKET *socket, NX_PACKET *packet_ptr, CHAR *reply_code, CHAR *message);
VOID _nx_ftp_server_directory_response(NX_TCP_SOCKET *socket, NX_PACKET *packet_ptr, CHAR *reply_code, CHAR *message, CHAR *directory);
VOID _nx_ftp_server_thread_entry(ULONG ftp_server_address);
VOID _nx_ftp_server_command_process(NX_FTP_SERVER *ftp_server_ptr);
VOID _nx_ftp_server_connect_process(NX_FTP_SERVER *ftp_server_ptr);
VOID _nx_ftp_server_command_present(NX_TCP_SOCKET *control_socket_ptr);
VOID _nx_ftp_server_connection_present(NX_TCP_SOCKET *control_socket_ptr, UINT port);
VOID _nx_ftp_server_data_disconnect(NX_TCP_SOCKET *data_socket_ptr);
VOID _nx_ftp_server_data_disconnect_process(NX_FTP_SERVER *ftp_server_ptr);
VOID _nx_ftp_server_data_present(NX_TCP_SOCKET *data_socket_ptr);
VOID _nx_ftp_server_data_process(NX_FTP_SERVER *ftp_server_ptr);
UINT _nx_ftp_server_parse_command(NX_PACKET *packet_ptr);
VOID _nx_ftp_server_timeout(ULONG ftp_server_address);
VOID _nx_ftp_server_timeout_processing(NX_FTP_SERVER *ftp_server_ptr);
VOID _nx_ftp_server_control_disconnect(NX_TCP_SOCKET *control_socket_ptr);
VOID _nx_ftp_server_control_disconnect_processing(NX_FTP_SERVER *ftp_server_ptr);
VOID _nx_ftp_server_data_socket_cleanup(NX_FTP_SERVER *ftp_server_ptr, NX_FTP_CLIENT_REQUEST *client_req_ptr);
#endif /* NX_FTP_SOURCE_CODE */
/* Internal functions. */
#ifdef FEATURE_NX_IPV6
UINT _nx_ftp_utility_parse_IPv6_address(CHAR *buffer_ptr, UINT buffer_length, NXD_ADDRESS *ipduo_address);
UINT _nx_ftp_utility_parse_port_number(CHAR *buffer_ptr, UINT buffer_length, UINT *portnumber);
UINT _nx_ftp_server_utility_fill_port_number(CHAR *buffer_ptr, UINT port_number);
#endif
UINT _nx_ftp_packet_allocate(NX_PACKET_POOL *pool_ptr, NX_FTP_CLIENT_REQUEST *client_request_ptr, NX_PACKET **packet_ptr, UINT packet_type, UINT wait_option);
VOID _nx_ftp_server_block_size_get(NX_FTP_SERVER *ftp_server_ptr, UINT ftp_command, CHAR *filename, ULONG *block_size);
UINT _nx_ftp_server_block_header_send(NX_PACKET_POOL *pool_ptr, NX_FTP_CLIENT_REQUEST *client_request_ptr, ULONG block_size);
UINT _nx_ftp_server_block_header_retrieve(NX_FTP_CLIENT_REQUEST *client_request_ptr, NX_PACKET *packet_ptr);
/* Determine if a C++ compiler is being used. If so, complete the standard
C conditional started above. */
#ifdef __cplusplus
}
#endif
#endif /* NXD_FTP_SERVER_H */
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