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/****************************************************************************
* apps/include/netutils/ftpd.h
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_NETUTILS_FTPD_H
#define __APPS_INCLUDE_NETUTILS_FTPD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Required configuration settings: Of course TCP networking support is
* required. But here are a couple that are less obvious:
*
* CONFIG_DISABLE_PTHREAD - pthread support is required
* CONFIG_DISABLE_POLL - poll() support is required
*
* Other FTPD configuration options thay may be of interest:
*
* CONFIG_FTPD_VENDORID - The vendor name to use in FTP communications.
* Default: "NuttX"
* CONFIG_FTPD_SERVERID - The server name to use in FTP communications.
* Default: "NuttX FTP Server"
* CONFIG_FTPD_CMDBUFFERSIZE - The maximum size of one command. Default:
* 128 bytes.
* CONFIG_FTPD_DATABUFFERSIZE - The size of the I/O buffer for data
* transfers. Default: 512 bytes.
* CONFIG_FTPD_WORKERSTACKSIZE - The stacksize to allocate for each
* FTP daemon worker thread. Default: 2048 bytes.
*/
#ifdef CONFIG_DISABLE_PTHREAD
# error "pthread support is required (CONFIG_DISABLE_PTHREAD=n)"
#endif
#ifdef CONFIG_DISABLE_POLL
# error "poll() support is required (CONFIG_DISABLE_POLL=n)"
#endif
#ifndef CONFIG_FTPD_VENDORID
# define CONFIG_FTPD_VENDORID "NuttX"
#endif
#ifndef CONFIG_FTPD_SERVERID
# define CONFIG_FTPD_SERVERID "NuttX FTP Server"
#endif
#ifndef CONFIG_FTPD_CMDBUFFERSIZE
# define CONFIG_FTPD_CMDBUFFERSIZE 128
#endif
#ifndef CONFIG_FTPD_DATABUFFERSIZE
# define CONFIG_FTPD_DATABUFFERSIZE 512
#endif
#ifndef CONFIG_FTPD_WORKERSTACKSIZE
# define CONFIG_FTPD_WORKERSTACKSIZE 2048
#endif
/* Interface definitions ****************************************************/
#define FTPD_ACCOUNTFLAG_NONE (0)
#define FTPD_ACCOUNTFLAG_ADMIN (1 << 0)
#define FTPD_ACCOUNTFLAG_SYSTEM (1 << 1)
#define FTPD_ACCOUNTFLAG_GUEST (1 << 2)
/****************************************************************************
* Public Types
****************************************************************************/
/* This "handle" describes the FTP session */
typedef FAR void *FTPD_SESSION;
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: ftpd_open
*
* Description:
* Create an instance of the FTPD server and return a handle that can be
* used to run the server.
*
* Input Parameters:
* None
*
* Returned Value:
* On success, a non-NULL handle is returned that can be used to reference
* the server instance.
*
****************************************************************************/
EXTERN FTPD_SESSION ftpd_open(void);
/****************************************************************************
* Name: ftpd_adduser
*
* Description:
* Add one FTP user.
*
* Input Parameters:
* handle - A handle previously returned by ftpd_open
* accountflags - The characteristics of this user (see FTPD_ACCOUNTFLAGS_*
* definitions above).
* user - The user login name. May be NULL indicating that no login is
* required.
* passwd - The user password. May be NULL indicating that no password
* is required.
* home - The user home directory. May be NULL.
*
* Returned Value:
* Zero is returned on success. A negated errno value is return on
* failure.
*
****************************************************************************/
EXTERN int ftpd_adduser(FTPD_SESSION handle, uint8_t accountflags,
FAR const char *user, FAR const char *passwd,
FAR const char *home);
/****************************************************************************
* Name: ftpd_session
*
* Description:
* Execute the FTPD server. This thread does not return until either (1)
* the timeout expires with no connection, (2) some other error occurs, or
* (2) a connection was accepted and an FTP worker thread was started to
* service the session. Each call to ftpd_session creates on session.
*
* Input Parameters:
* handle - A handle previously returned by ftpd_open
* timeout - A time in milliseconds to wait for a connection. If this
* time elapses with no connected, the -ETIMEDOUT error will be returned.
*
* Returned Value:
* Zero is returned if the FTP worker was started. On failure, a negated
* errno value is returned to indicate why the servier terminated.
* -ETIMEDOUT indicates that the user-provided timeout elapsed with no
* connection.
*
****************************************************************************/
EXTERN int ftpd_session(FTPD_SESSION handle, int timeout);
/****************************************************************************
* Name: ftpd_close
*
* Description:
* Close and destroy the handle created by ftpd_open.
*
* Input Parameters:
* handle - A handle previously returned by ftpd_open
*
* Returned Value:
* None
*
****************************************************************************/
EXTERN void ftpd_close(FTPD_SESSION handle);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __APPS_INCLUDE_NETUTILS_FTPD_H */
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