From owner-freebsd-scsi@freebsd.org  Mon Jun 29 18:58:08 2015
Return-Path: <owner-freebsd-scsi@freebsd.org>
Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 181C998F7FC
 for <freebsd-scsi@mailman.ysv.freebsd.org>;
 Mon, 29 Jun 2015 18:58:08 +0000 (UTC)
 (envelope-from rah.lists@gmail.com)
Received: from mail-la0-x230.google.com (mail-la0-x230.google.com
 [IPv6:2a00:1450:4010:c03::230])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id B4D3110A1
 for <freebsd-scsi@freebsd.org>; Mon, 29 Jun 2015 18:58:07 +0000 (UTC)
 (envelope-from rah.lists@gmail.com)
Received: by lagc2 with SMTP id c2so21252935lag.3
 for <freebsd-scsi@freebsd.org>; Mon, 29 Jun 2015 11:58:05 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:date:message-id:subject:from:to:content-type;
 bh=v31O0N0TNO92BjGZmPg8Ow5slp2KESmxAw903oBHj2A=;
 b=Wk9Gw/NMHeRrpxRqTc9as4m+oAFFCo8R1FDEaP/TW47FGijxJJMUeXABOQ6X6/YD/D
 kCrqosHKqkMJ1czwkjVDSE1+QUAPw61NCoqaZw+W66USudrrB4bL+auYo3ms4TDdBEvJ
 c/JtF8HSOWck/0zoD+pFw9Ox0frTpC578ZqlnvZtxP2Cqj5rNCknOyPaYz/GPiwwrQgc
 vxrLghRIYrklFa+IN4IrvjhrFUL/tYIqZT8q0HtQJ4+yAJEJ1QDLav04anyWdAM9rfWN
 mKq45KEVmdgAdL2HbtNkz8Eqe3J1SdYkWupruydIyFGY5hevn2mrmWS/w1iprP75gySp
 2WDg==
MIME-Version: 1.0
X-Received: by 10.152.170.234 with SMTP id ap10mr12090498lac.28.1435604285746; 
 Mon, 29 Jun 2015 11:58:05 -0700 (PDT)
Received: by 10.25.218.66 with HTTP; Mon, 29 Jun 2015 11:58:05 -0700 (PDT)
Date: Mon, 29 Jun 2015 14:58:05 -0400
Message-ID: <CAFzyudhbMyEr9KEqo_+xvr-AOnqinCJ+5Px9KZmTUpMsCWXPEQ@mail.gmail.com>
Subject: [iscsictl] connection to invalid target
From: RA H <rah.lists@gmail.com>
To: freebsd-scsi@freebsd.org
Content-Type: text/plain; charset=UTF-8
X-Content-Filtered-By: Mailman/MimeDel 2.1.20
X-BeenThere: freebsd-scsi@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: SCSI subsystem <freebsd-scsi.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-scsi>,
 <mailto:freebsd-scsi-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-scsi/>
List-Post: <mailto:freebsd-scsi@freebsd.org>
List-Help: <mailto:freebsd-scsi-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-scsi>,
 <mailto:freebsd-scsi-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 29 Jun 2015 18:58:08 -0000

I have a SAN with four iSCSI targets,
eui.000B56007135B1B0 through eui.000B56007135B1B3

I need to validate target names entered manually by a user.
Normally, I would do this is by searching the output of a discovery
session. Since iscsictl doesn't allow doing discovery *only*, the only
way I can think of to validate a target is to connect, then parse the
output of "iscsictl -L". Unfortunately, attempting to connect to certain
invalid targets results in connection to a valid target:

# iscsictl -Ad 192.168.3.111
# iscsictl -L
Target name                          Target portal    State
eui.000B56007135B1B0                 192.168.3.111    Connected: da0
eui.000B56007135B1B1                 192.168.3.111    Connected: da2
eui.000B56007135B1B2                 192.168.3.111    Connected: da1
eui.000B56007135B1B3                 192.168.3.111    Connected: da3
# iscsictl -Ra
# iscsictl -A -p 192.168.3.111 -t eui.000B56007135B1A1
# iscsictl -L
Target name                          Target portal    State
eui.000B56007135B1A1                 192.168.3.111    Connected: da0
# dmesg
...
da0: Serial Number 000B56007135B1B10000
...

As the Serial Number indicates, iscsictl actually connected to
target eui.000B56007135B1B1.