SFTP: consider supporting hard link extension #1370

New Issue

tahoe-lafs · 2011-02-24T03:41:44Z

davidsarah commented

2011-02-24 03:41:44 +00:00

OpenSSH's SFTP server recently (in version 5.7) added a hardlink extension, and there is a patch to support it in sshfs.

Hardlinks are closer in semantics to the links that Tahoe directories have to their children, than are symlinks. So we might want to support this even though we do not support symlinks (yet).

OpenSSH's SFTP server recently (in version 5.7) added a [hardlink extension](https://bugzilla.mindrot.org/show_bug.cgi?id=1555), and there is a [patch to support it in sshfs](http://sourceforge.net/mailarchive/forum.php?thread_name=20110221103749.GA12166%40miek.nl&forum_name=fuse-sshfs). Hardlinks are closer in semantics to the links that Tahoe directories have to their children, than are symlinks. So we might want to support this even though we do not support symlinks (yet).

tahoe-lafs added the

labels 2011-02-24 03:41:44 +00:00

tahoe-lafs added this to the undecided milestone 2011-02-24 03:41:44 +00:00

tahoe-lafs added

code-frontend

and removed

unknown

labels 2011-02-24 03:42:17 +00:00

davidsarah commented

2011-02-24 03:53:58 +00:00

Update patch link to newer version posted on fuse-sshfs.

davidsarah commented

2011-02-26 01:28:09 +00:00

Documentation from http://www.openbsd.org/cgi-bin/cvsweb/~checkout~/src/usr.bin/ssh/PROTOCOL?rev=1.17;content-type=text%2Fplain

10. sftp: Extension request "hardlink@openssh.com"

This request is for creating a hard link to a regular file. This
request is implemented as a SSH_FXP_EXTENDED request with the
following format:

	uint32		id
	string		"hardlink@openssh.com"
	string		oldpath
	string		newpath

On receiving this request the server will perform the operation
link(oldpath, newpath) and will respond with a SSH_FXP_STATUS message.
This extension is advertised in the SSH_FXP_VERSION hello with version
"1".

Documentation from <http://www.openbsd.org/cgi-bin/cvsweb/~checkout~/src/usr.bin/ssh/PROTOCOL?rev=1.17;content-type=text%2Fplain> ``` 10. sftp: Extension request "hardlink@openssh.com" This request is for creating a hard link to a regular file. This request is implemented as a SSH_FXP_EXTENDED request with the following format: uint32 id string "hardlink@openssh.com" string oldpath string newpath On receiving this request the server will perform the operation link(oldpath, newpath) and will respond with a SSH_FXP_STATUS message. This extension is advertised in the SSH_FXP_VERSION hello with version "1". ```

warner added

code-frontend-ftp-sftp

and removed

code-frontend

labels 2014-12-02 19:45:18 +00:00

Sign in to join this conversation.