| #ifndef HEADER_CURL_SSH_H |
| #define HEADER_CURL_SSH_H |
| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2015, 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 https://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 "curl_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_AGENT_INIT, /* initialize then wait for connection to agent */ |
| SSH_AUTH_AGENT_LIST, /* ask for list then wait for entire list to come */ |
| SSH_AUTH_AGENT, /* attempt one key at a time */ |
| 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_QUOTE_STATVFS, |
| SSH_SFTP_GETINFO, |
| SSH_SFTP_FILETIME, |
| 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 |
| Curl_easy, 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 */ |
| |
| #ifdef HAVE_LIBSSH2_AGENT_API |
| LIBSSH2_AGENT *ssh_agent; /* proxy to ssh-agent/pageant */ |
| struct libssh2_agent_publickey *sshagent_identity, |
| *sshagent_prev_identity; |
| #endif |
| |
| /* 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 |
| |
| /* Feature detection based on version numbers to better work with |
| non-configure platforms */ |
| |
| #if !defined(LIBSSH2_VERSION_NUM) || (LIBSSH2_VERSION_NUM < 0x001000) |
| # error "SCP/SFTP protocols require libssh2 0.16 or later" |
| #endif |
| |
| #if LIBSSH2_VERSION_NUM >= 0x010000 |
| #define HAVE_LIBSSH2_SFTP_SEEK64 1 |
| #endif |
| |
| #if LIBSSH2_VERSION_NUM >= 0x010100 |
| #define HAVE_LIBSSH2_VERSION 1 |
| #endif |
| |
| #if LIBSSH2_VERSION_NUM >= 0x010205 |
| #define HAVE_LIBSSH2_INIT 1 |
| #define HAVE_LIBSSH2_EXIT 1 |
| #endif |
| |
| #if LIBSSH2_VERSION_NUM >= 0x010206 |
| #define HAVE_LIBSSH2_KNOWNHOST_CHECKP 1 |
| #define HAVE_LIBSSH2_SCP_SEND64 1 |
| #endif |
| |
| #if LIBSSH2_VERSION_NUM >= 0x010208 |
| #define HAVE_LIBSSH2_SESSION_HANDSHAKE 1 |
| #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 */ |
