* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, 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
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
- * $Id$
***************************************************************************/
+#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_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 */
+
+#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 >= 0x001300)
-# ifndef HAVE_LIBSSH2_SESSION_BLOCK_DIRECTIONS
-# define HAVE_LIBSSH2_SESSION_BLOCK_DIRECTIONS 1
-# endif
+#if LIBSSH2_VERSION_NUM >= 0x010000
+#define HAVE_LIBSSH2_SFTP_SEEK64 1
#endif
-extern const struct Curl_handler Curl_handler_scp;
-extern const struct Curl_handler Curl_handler_sftp;
+#if LIBSSH2_VERSION_NUM >= 0x010100
+#define HAVE_LIBSSH2_VERSION 1
+#endif
-ssize_t Curl_scp_send(struct connectdata *conn, int sockindex,
- const void *mem, size_t len);
-ssize_t Curl_scp_recv(struct connectdata *conn, int sockindex,
- char *mem, size_t len);
+#if LIBSSH2_VERSION_NUM >= 0x010205
+#define HAVE_LIBSSH2_INIT 1
+#define HAVE_LIBSSH2_EXIT 1
+#endif
-ssize_t Curl_sftp_send(struct connectdata *conn, int sockindex,
- const void *mem, size_t len);
-ssize_t Curl_sftp_recv(struct connectdata *conn, int sockindex,
- char *mem, size_t len);
+#if LIBSSH2_VERSION_NUM >= 0x010206
+#define HAVE_LIBSSH2_KNOWNHOST_CHECKP 1
+#define HAVE_LIBSSH2_SCP_SEND64 1
+#endif
-#define Curl_ssh_enabled(conn,prot) (conn->protocol & prot)
+#if LIBSSH2_VERSION_NUM >= 0x010208
+#define HAVE_LIBSSH2_SESSION_HANDSHAKE 1
+#endif
-#else /* USE_LIBSSH2 */
-#define Curl_ssh_enabled(x,y) 0
-#define Curl_scp_send(a,b,c,d) 0
-#define Curl_sftp_send(a,b,c,d) 0
-#define Curl_scp_recv(a,b,c,d) 0
-#define Curl_sftp_recv(a,b,c,d) 0
+extern const struct Curl_handler Curl_handler_scp;
+extern const struct Curl_handler Curl_handler_sftp;
#endif /* USE_LIBSSH2 */
projects / platform / upstream / curl.git / blobdiff