87c1498d1a
Release notes are available at https://www.openssh.com/txt/release-9.0 Some highlights: * ssh(1), sshd(8): use the hybrid Streamlined NTRU Prime + x25519 key exchange method by default ("sntrup761x25519-sha512@openssh.com"). The NTRU algorithm is believed to resist attacks enabled by future quantum computers and is paired with the X25519 ECDH key exchange (the previous default) as a backstop against any weaknesses in NTRU Prime that may be discovered in the future. The combination ensures that the hybrid exchange offers at least as good security as the status quo. * sftp-server(8): support the "copy-data" extension to allow server- side copying of files/data, following the design in draft-ietf-secsh-filexfer-extensions-00. bz2948 * sftp(1): add a "cp" command to allow the sftp client to perform server-side file copies. This commit excludes the scp(1) change to use the SFTP protocol by default; that change will immediately follow. MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation
202 lines
6.2 KiB
C
202 lines
6.2 KiB
C
/* $OpenBSD: sftp-client.h,v 1.36 2022/03/31 03:07:03 djm Exp $ */
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/*
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* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Client side of SSH2 filexfer protocol */
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#ifndef _SFTP_CLIENT_H
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#define _SFTP_CLIENT_H
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#ifdef USE_SYSTEM_GLOB
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# include <glob.h>
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#else
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# include "openbsd-compat/glob.h"
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#endif
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typedef struct SFTP_DIRENT SFTP_DIRENT;
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struct SFTP_DIRENT {
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char *filename;
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char *longname;
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Attrib a;
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};
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/*
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* Used for statvfs responses on the wire from the server, because the
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* server's native format may be larger than the client's.
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*/
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struct sftp_statvfs {
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u_int64_t f_bsize;
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u_int64_t f_frsize;
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u_int64_t f_blocks;
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u_int64_t f_bfree;
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u_int64_t f_bavail;
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u_int64_t f_files;
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u_int64_t f_ffree;
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u_int64_t f_favail;
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u_int64_t f_fsid;
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u_int64_t f_flag;
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u_int64_t f_namemax;
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};
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/* Used for limits response on the wire from the server */
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struct sftp_limits {
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u_int64_t packet_length;
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u_int64_t read_length;
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u_int64_t write_length;
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u_int64_t open_handles;
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};
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/* print flag values */
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#define SFTP_QUIET 0 /* be quiet during transfers */
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#define SFTP_PRINT 1 /* list files and show progress bar */
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#define SFTP_PROGRESS_ONLY 2 /* progress bar only */
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/*
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* Initialise a SSH filexfer connection. Returns NULL on error or
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* a pointer to a initialized sftp_conn struct on success.
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*/
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struct sftp_conn *do_init(int, int, u_int, u_int, u_int64_t);
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u_int sftp_proto_version(struct sftp_conn *);
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/* Query server limits */
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int do_limits(struct sftp_conn *, struct sftp_limits *);
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/* Close file referred to by 'handle' */
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int do_close(struct sftp_conn *, const u_char *, u_int);
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/* Read contents of 'path' to NULL-terminated array 'dir' */
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int do_readdir(struct sftp_conn *, const char *, SFTP_DIRENT ***);
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/* Frees a NULL-terminated array of SFTP_DIRENTs (eg. from do_readdir) */
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void free_sftp_dirents(SFTP_DIRENT **);
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/* Delete file 'path' */
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int do_rm(struct sftp_conn *, const char *);
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/* Create directory 'path' */
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int do_mkdir(struct sftp_conn *, const char *, Attrib *, int);
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/* Remove directory 'path' */
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int do_rmdir(struct sftp_conn *, const char *);
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/* Get file attributes of 'path' (follows symlinks) */
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Attrib *do_stat(struct sftp_conn *, const char *, int);
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/* Get file attributes of 'path' (does not follow symlinks) */
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Attrib *do_lstat(struct sftp_conn *, const char *, int);
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/* Set file attributes of 'path' */
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int do_setstat(struct sftp_conn *, const char *, Attrib *);
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/* Set file attributes of open file 'handle' */
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int do_fsetstat(struct sftp_conn *, const u_char *, u_int, Attrib *);
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/* Set file attributes of 'path', not following symlinks */
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int do_lsetstat(struct sftp_conn *conn, const char *path, Attrib *a);
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/* Canonicalise 'path' - caller must free result */
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char *do_realpath(struct sftp_conn *, const char *);
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/* Canonicalisation with tilde expansion (requires server extension) */
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char *do_expand_path(struct sftp_conn *, const char *);
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/* Returns non-zero if server can tilde-expand paths */
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int can_expand_path(struct sftp_conn *);
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/* Get statistics for filesystem hosting file at "path" */
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int do_statvfs(struct sftp_conn *, const char *, struct sftp_statvfs *, int);
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/* Rename 'oldpath' to 'newpath' */
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int do_rename(struct sftp_conn *, const char *, const char *, int);
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/* Copy 'oldpath' to 'newpath' */
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int do_copy(struct sftp_conn *, const char *, const char *);
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/* Link 'oldpath' to 'newpath' */
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int do_hardlink(struct sftp_conn *, const char *, const char *);
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/* Rename 'oldpath' to 'newpath' */
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int do_symlink(struct sftp_conn *, const char *, const char *);
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/* Call fsync() on open file 'handle' */
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int do_fsync(struct sftp_conn *conn, u_char *, u_int);
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/*
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* Download 'remote_path' to 'local_path'. Preserve permissions and times
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* if 'pflag' is set
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*/
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int do_download(struct sftp_conn *, const char *, const char *,
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Attrib *, int, int, int);
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/*
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* Recursively download 'remote_directory' to 'local_directory'. Preserve
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* times if 'pflag' is set
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*/
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int download_dir(struct sftp_conn *, const char *, const char *,
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Attrib *, int, int, int, int, int);
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/*
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* Upload 'local_path' to 'remote_path'. Preserve permissions and times
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* if 'pflag' is set
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*/
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int do_upload(struct sftp_conn *, const char *, const char *, int, int, int);
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/*
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* Recursively upload 'local_directory' to 'remote_directory'. Preserve
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* times if 'pflag' is set
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*/
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int upload_dir(struct sftp_conn *, const char *, const char *, int, int, int,
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int, int);
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/*
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* Download a 'from_path' from the 'from' connection and upload it to
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* to 'to' connection at 'to_path'.
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*/
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int
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do_crossload(struct sftp_conn *from, struct sftp_conn *to,
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const char *from_path, const char *to_path,
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Attrib *a, int preserve_flag);
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/*
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* Recursively download a directory from 'from_path' from the 'from'
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* connection and upload it to 'to' connection at 'to_path'.
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*/
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int crossload_dir(struct sftp_conn *from, struct sftp_conn *to,
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const char *from_path, const char *to_path,
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Attrib *dirattrib, int preserve_flag, int print_flag,
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int follow_link_flag);
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/* Concatenate paths, taking care of slashes. Caller must free result. */
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char *path_append(const char *, const char *);
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/* Make absolute path if relative path and CWD is given. Does not modify
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* original if the path is already absolute. */
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char *make_absolute(char *, const char *);
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/* Check if remote path is directory */
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int remote_is_dir(struct sftp_conn *conn, const char *path);
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/* Check if local path is directory */
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int local_is_dir(const char *path);
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/* Check whether path returned from glob(..., GLOB_MARK, ...) is a directory */
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int globpath_is_dir(const char *pathname);
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#endif
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