[Stgt-devel] [PATCH] iSNS support

[FUJITA Tomonori]

From: FUJITA Tomonori <fujita.tomonori at lab.ntt.co.jp>
Subject: [Stgt-devel] [PATCH] iSNS support
Date: Sun, 15 Apr 2007 22:42:02 +0900

> Somehow I need iSNS in tgt now.
> 
> I know that IET iSNS code has some problems (e.g. can't handle errors
> properly), however, I just modified it for tgt. It needs to be fixed
> later on.
> 
> Before I apply this, I need to find how tgt supports iSNS
> configurations; tgtd boot options or via tgt.
> 
> Note that this patch requires you to modify the code to configure the
> iSNS server address (see usr/iscsi/transport.c).

Merged.

Here are some examples:

root at lilac:~# ./tgt/usr/tgtadm --lld iscsi --op show --mode sys
iSNS:
    iSNS=Off
    iSNSServerIP=
    iSNSServerPort=3205
    iSNSAccessControl=Off

root at lilac:~# ./tgt/usr/tgtadm --op update --mode sys --name iSNSServerIP -v 192.168.11.133

root at lilac:~# ./tgt/usr/tgtadm --op update --mode sys --name iSNS -v On

root at lilac:~# ./tgt/usr/tgtadm --lld iscsi --op show --mode sys
iSNS:
    iSNS=On
    iSNSServerIP=192.168.11.133
    iSNSServerPort=3205
    iSNSAccessControl=Off

Now you are ready to add targets.

TODO:
- once you enable iSNS, you can't disable it.
- you need to enable iSNS before adding targets.
- stop reading from sockets synchronously