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Add the beginnings of an FTP server
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4368 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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/****************************************************************************
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* apps/include/ftpd.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_NETUTILS_FTPD_FTPD_H
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#define __APPS_NETUTILS_FTPD_FTPD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdbool.h>
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#include <netinet/in.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* FPTD Definitions *********************************************************/
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# define FTPD_ACCOUNTFLAG_NONE (0)
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# define FTPD_ACCOUNTFLAG_ADMIN (1 << 0)
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# define FTPD_ACCOUNTFLAG_SYSTEM (1 << 1)
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# define FTPD_ACCOUNTFLAG_GUEST (1 << 2)
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# define FTPD_SESSIONFLAG_USER (1 << 0)
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# define FTPD_SESSIONFLAG_RESTARTPOS (1 << 1)
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# define FTPD_SESSIONFLAG_RENAMEFROM (1 << 2)
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# define FTPD_LISTOPTION_A (1 << 0)
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# define FTPD_LISTOPTION_L (1 << 1)
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# define FTPD_LISTOPTION_F (1 << 2)
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# define FTPD_LISTOPTION_R (1 << 3)
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# define FTPD_LISTOPTION_UNKNOWN (1 << 7)
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# define FTPD_CMDFLAG_LOGIN (1 << 0)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This enumerates the type of each session */
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enum ftpd_sessiontype_e
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{
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FTPD_SESSIONTYPE_NONE = 0
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FTPD_SESSIONTYPE_A,
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FTPD_SESSIONTYPE_I,
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FTPD_SESSIONTYPE_L8
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};
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typedef struct ftpd_pathnode_s
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{
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struct ftpd_pathnode_s *flink;
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struct ftpd_pathnode_s *blink;
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bool ignore;
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FAR char *name;
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};
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union ftpd_sockaddr_u
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{
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uint8_t raw[sizeof(struct sockaddr_storage)];
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struct sockaddr_storage ss;
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struct sockaddr sa;
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#ifdef CONFIG_NET_IPv6
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struct sockaddr_in6 in6;
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#else
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struct sockaddr_in in4;
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#endif
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};
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/* This structure describes on account */
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struct ftpd_account_s
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{
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struct ftpd_account_s *blink;
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struct ftpd_account_s *flink;
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uint8_t flags; /* See FTPD_ACCOUNTFLAG_* definitions */
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FAR char *user; /* User name */
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FAR char *password; /* Un-encrypted password */
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FAR char *home; /* Home directory path */
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};
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/* This structures describes an FTP session a list of associated accounts */
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struct ftpd_server_s
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{
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int sd; /* Listen socket descriptor */
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union ftpd_sockaddr_u addr; /* Listen address */
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struct ftpd_account_s *head; /* Head of a list of accounts */
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struct ftpd_account_s *tail; /* Tail of a list of accounts */
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};
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struct ftpd_stream_s
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{
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int sd; /* Socket descriptor */
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union ftpd_sockaddr_u addr; /* Network address */
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socklen_t addrlen; /* Length of the address */
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size_t buflen; /* Length of the buffer */
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uint8_t *buffer; /* Pointer to the buffer */
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};
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struct ftpd_session_s
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{
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FAR struct ftpd_server_s shadow;
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FAR struct ftpd_account_s *head;
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FAR struct ftpd_account_s *curr;
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uint8_t flags; /* See TPD_SESSIONFLAG_* definitions */
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int txtimeout;
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int txtimeout;
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/* Command */
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struct ftpd_stream_s cmd;
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FAR char *cmd;
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FAR char *param;
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/* Data */
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struct ftpd_stream_s data;
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off_t restartpos;
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/* File */
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int fd;
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/* Current user */
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FAR char *user;
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uint8_t m_type; /* See enum ftpd_sessiontype_e */
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FAR char *home;
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FAR char *work;
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FAR char *renamefrom;
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};
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typedef int (*ftpd_cmdhandler_t)(struct ftpd_session_s *);
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struct ftpd_cmd_s
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{
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FAR const char *cmd; /* The command string */
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ftpd_cmdhandler_t handler; /* The function that handles the command */
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uint8_t flags; /* See FTPD_CMDFLAGS_* definitions */
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};
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/* Used to maintain a list of protocol names */
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struct ftpd_protocol_s
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{
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FAR const char *name;
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int value;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APPS_NETUTILS_FTPD_FTPD_H */
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