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#ifndef HEADER_CURL_SSH_H
#define HEADER_CURL_SSH_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "setup.h"
#ifdef HAVE_LIBSSH2_H
#include <libssh2.h>
#include <libssh2_sftp.h>
#endif /* HAVE_LIBSSH2_H */
/****************************************************************************
* SSH unique setup
***************************************************************************/
typedef enum {
SSH_NO_STATE = -1, /* Used for "nextState" so say there is none */
SSH_STOP = 0, /* do nothing state, stops the state machine */
SSH_INIT, /* First state in SSH-CONNECT */
SSH_S_STARTUP, /* Session startup */
SSH_HOSTKEY, /* verify hostkey */
SSH_AUTHLIST,
SSH_AUTH_PKEY_INIT,
SSH_AUTH_PKEY,
SSH_AUTH_PASS_INIT,
SSH_AUTH_PASS,
SSH_AUTH_HOST_INIT,
SSH_AUTH_HOST,
SSH_AUTH_KEY_INIT,
SSH_AUTH_KEY,
SSH_AUTH_DONE,
SSH_SFTP_INIT,
SSH_SFTP_REALPATH, /* Last state in SSH-CONNECT */
SSH_SFTP_QUOTE_INIT, /* First state in SFTP-DO */
SSH_SFTP_POSTQUOTE_INIT, /* (Possibly) First state in SFTP-DONE */
SSH_SFTP_QUOTE,
SSH_SFTP_NEXT_QUOTE,
SSH_SFTP_QUOTE_STAT,
SSH_SFTP_QUOTE_SETSTAT,
SSH_SFTP_QUOTE_SYMLINK,
SSH_SFTP_QUOTE_MKDIR,
SSH_SFTP_QUOTE_RENAME,
SSH_SFTP_QUOTE_RMDIR,
SSH_SFTP_QUOTE_UNLINK,
SSH_SFTP_TRANS_INIT,
SSH_SFTP_UPLOAD_INIT,
SSH_SFTP_CREATE_DIRS_INIT,
SSH_SFTP_CREATE_DIRS,
SSH_SFTP_CREATE_DIRS_MKDIR,
SSH_SFTP_READDIR_INIT,
SSH_SFTP_READDIR,
SSH_SFTP_READDIR_LINK,
SSH_SFTP_READDIR_BOTTOM,
SSH_SFTP_READDIR_DONE,
SSH_SFTP_DOWNLOAD_INIT,
SSH_SFTP_DOWNLOAD_STAT, /* Last state in SFTP-DO */
SSH_SFTP_CLOSE, /* Last state in SFTP-DONE */
SSH_SFTP_SHUTDOWN, /* First state in SFTP-DISCONNECT */
SSH_SCP_TRANS_INIT, /* First state in SCP-DO */
SSH_SCP_UPLOAD_INIT,
SSH_SCP_DOWNLOAD_INIT,
SSH_SCP_DONE,
SSH_SCP_SEND_EOF,
SSH_SCP_WAIT_EOF,
SSH_SCP_WAIT_CLOSE,
SSH_SCP_CHANNEL_FREE, /* Last state in SCP-DONE */
SSH_SESSION_DISCONNECT, /* First state in SCP-DISCONNECT */
SSH_SESSION_FREE, /* Last state in SCP/SFTP-DISCONNECT */
SSH_QUIT,
SSH_LAST /* never used */
} sshstate;
/* this struct is used in the HandleData struct which is part of the
SessionHandle, which means this is used on a per-easy handle basis.
Everything that is strictly related to a connection is banned from this
struct. */
struct SSHPROTO {
char *path; /* the path we operate on */
};
/* ssh_conn is used for struct connection-oriented data in the connectdata
struct */
struct ssh_conn {
const char *authlist; /* List of auth. methods, managed by libssh2 */
#ifdef USE_LIBSSH2
const char *passphrase; /* pass-phrase to use */
char *rsa_pub; /* path name */
char *rsa; /* path name */
bool authed; /* the connection has been authenticated fine */
sshstate state; /* always use ssh.c:state() to change state! */
sshstate nextstate; /* the state to goto after stopping */
CURLcode actualcode; /* the actual error code */
struct curl_slist *quote_item; /* for the quote option */
char *quote_path1; /* two generic pointers for the QUOTE stuff */
char *quote_path2;
LIBSSH2_SFTP_ATTRIBUTES quote_attrs; /* used by the SFTP_QUOTE state */
bool acceptfail; /* used by the SFTP_QUOTE (continue if
quote command fails) */
char *homedir; /* when doing SFTP we figure out home dir in the
connect phase */
/* Here's a set of struct members used by the SFTP_READDIR state */
LIBSSH2_SFTP_ATTRIBUTES readdir_attrs;
char *readdir_filename;
char *readdir_longentry;
int readdir_len, readdir_totalLen, readdir_currLen;
char *readdir_line;
char *readdir_linkPath;
/* end of READDIR stuff */
int secondCreateDirs; /* counter use by the code to see if the
second attempt has been made to change
to/create a directory */
char *slash_pos; /* used by the SFTP_CREATE_DIRS state */
LIBSSH2_SESSION *ssh_session; /* Secure Shell session */
LIBSSH2_CHANNEL *ssh_channel; /* Secure Shell channel handle */
LIBSSH2_SFTP *sftp_session; /* SFTP handle */
LIBSSH2_SFTP_HANDLE *sftp_handle;
int orig_waitfor; /* default READ/WRITE bits wait for */
/* note that HAVE_LIBSSH2_KNOWNHOST_API is a define set in the libssh2.h
header */
#ifdef HAVE_LIBSSH2_KNOWNHOST_API
LIBSSH2_KNOWNHOSTS *kh;
#endif
#endif /* USE_LIBSSH2 */
};
#ifdef USE_LIBSSH2
#if !defined(LIBSSH2_VERSION_NUM) || (LIBSSH2_VERSION_NUM < 0x001000)
# error "SCP/SFTP protocols require libssh2 0.16 or later"
#endif
#if defined(LIBSSH2_VERSION_NUM) && (LIBSSH2_VERSION_NUM >= 0x010000)
# define HAVE_LIBSSH2_SFTP_SEEK64 1
#else
# undef HAVE_LIBSSH2_SFTP_SEEK64
#endif
#if defined(LIBSSH2_VERSION_NUM) && (LIBSSH2_VERSION_NUM >= 0x010206)
# define HAVE_LIBSSH2_SCP_SEND64 1
#else
# undef HAVE_LIBSSH2_SCP_SEND64
#endif
extern const struct Curl_handler Curl_handler_scp;
extern const struct Curl_handler Curl_handler_sftp;
#endif /* USE_LIBSSH2 */
#endif /* HEADER_CURL_SSH_H */
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