sshfs and target directory

sshfs and target directory

[Marc Weber]

summary:

sshfs mounting user@host: works but user@host:/ does not.

I had to apply this patch:

diff --git a/modules/parse_sun.c b/modules/parse_sun.c
index 65417e1..35d9edc 100644
--- a/modules/parse_sun.c
+++ b/modules/parse_sun.c
@@ -827,7 +827,7 @@ static int validate_location(char *loc)
 			    *ptr == '-' || *ptr == '.' || *ptr == '_' ||
 			    *ptr == ',' || *ptr == '(' || *ptr == ')' ||
 			    *ptr == '#' || *ptr == '@' || *ptr == ':' ||
-			    *ptr == '[' || *ptr == ']'))
+			    *ptr == '[' || *ptr == ']' || *ptr == '/' ))
 				return 0;
 			ptr++;
 		}



in order to make  this work which doesn't mount /root but /

rootlap   -fstype=fuse,rw,nodev,nonempty,noatime,max_read=65536,uid=1008,gid=100 \/nix\/store\/yfmbrb7d7hh9n6dyidypw7k1xcixxmmz-sshfs-wrapped\/bin/\sshfs-wrapped\#root@host\:\/

I'm not sure whether this is the perfect patch.

Probably the problem is that the trailing :/ triggers check_colon to
return 1 in validate_location which is then failing in the loop I
patched above because "/" was not a valid character.

Marc Weber

Re: sshfs and target directory

[Ian Kent]

Marc Weber wrote:
> summary:
> 
> sshfs mounting user@host: works but user@host:/ does not.
> 
> I had to apply this patch:
> 
> diff --git a/modules/parse_sun.c b/modules/parse_sun.c
> index 65417e1..35d9edc 100644
> --- a/modules/parse_sun.c
> +++ b/modules/parse_sun.c
> @@ -827,7 +827,7 @@ static int validate_location(char *loc)
>  			    *ptr == '-' || *ptr == '.' || *ptr == '_' ||
>  			    *ptr == ',' || *ptr == '(' || *ptr == ')' ||
>  			    *ptr == '#' || *ptr == '@' || *ptr == ':' ||
> -			    *ptr == '[' || *ptr == ']'))
> +			    *ptr == '[' || *ptr == ']' || *ptr == '/' ))
>  				return 0;
>  			ptr++;
>  		}
> 
> 
> 
> in order to make  this work which doesn't mount /root but /
> 
> rootlap   -fstype=fuse,rw,nodev,nonempty,noatime,max_read=65536,uid=1008,gid=100 \/nix\/store\/yfmbrb7d7hh9n6dyidypw7k1xcixxmmz-sshfs-wrapped\/bin/\sshfs-wrapped\#root@host\:\/
> 
> I'm not sure whether this is the perfect patch.
> 
> Probably the problem is that the trailing :/ triggers check_colon to
> return 1 in validate_location which is then failing in the loop I
> patched above because "/" was not a valid character.

Yes, this has come up recently and it's a bit painful.

If *ptr is a "/" then that is not valid in this case so we can do that.

But if you add a ":" escape to the beginning of the mount location this
check will not be made. I can't remember the sshfs syntax but something
like :sshfs#<user>@<host: should work OK.

Ian


> 
> Marc Weber
> 
> _______________________________________________
> autofs mailing list
> autofs@linux.kernel.org
> http://linux.kernel.org/mailman/listinfo/autofs

Re: sshfs and target directory

[Marc Weber]

Sry, I missed posting this mail to the list in the first place. Doing so
now. Additional note:
alvin@mail.Linux-Consulting.com bounced as well so I don't know how to
contact the maintainer of the official howto.

> You asked about where we can put example scripts before.
> I add a contrib directory to the distribution but there isn't a web
> site. I have the domain name autofs.net but I don't have the time or
> inclination to put together and maintain a web site. Last I I posted to
> the list hinting at wanting someone interested in doing this I didn't
> get any responses.

I must have missed that.
I think it's bad that many people start blogging about autofs because
tehre is no uniq place to look for information.
So if you can setup any wiki (which shoud be done in 5 min) I'll try to
put up at least pointers to

a) the mailinglist archives
  http://linux.kernel.org/pipermail/autofs

b) the howto
  http://www.linux-consulting.com/Amd_AutoFS/autofs.html
  (I sent in email to Alvin. But I had to search for the newer mail
  address on this list..)

c) my script ;-)

d) Whatever you think is missing.

But in this case adding that line to the man page would have been enough :)

If you think it's worth starting a small wiki just for keeping things in
one place let me know about your server features and I'll try to find a
wiki which can be run on it.

Marc Weber