Date: Thu, 3 Mar 2016 10:47:21 +0100 From: "O. Hartmann" <ohartman@zedat.fu-berlin.de> To: freebsd-current <freebsd-current@freebsd.org> Subject: mount_smbfs(8): support for SMBv3.02? Message-ID: <20160303104721.097ae352@freyja.zeit4.iv.bundesimmobilien.de>
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Does FreeBSD's mount_smbfs(8) support for Microsoft's SMBv3 protocol introduced with Windows 8 and Windows Server 2012/R2? I tried to find informations/documentation for the kernel options NETSMB SMBFS which I suspect to maintain this aspect, but I couldn't find anything regarding NETSMB or SMBFS. The manpage for mount_smbfs(8) seems not to provide any further informations. What does option "-n opt" of mount_smbfs(8) do? See manpage for that sepcific command, it lacks of explanation. I'm required to mount a SHARE provided by a Windows Server 2012 R2, which has explicitely deisabled NetBIOS over 139/tcp (firewalled, too). I'm running FreeBSD CURRENT, most recent. I'd like to use FreeBSD tools only - as far as this is possible. Now it seems that mount_smbfs(8) can not handle SMBv3 - but this is simply a guess based upon incomplete documentation. Can someone shed light on the maximal protocol version supported by mount_smbfs(8)? I need to track down why I can not mount a share with 445/tcp only. I can do so via 139/tcp NetBIOS from the very same server (windows 2012R2). Since I do not understand much about how windows negotiate the protocol used with a client's request - if any negotiation ever takes place - I try to find out what I did wrong with the configuration/usage of mount_smbfs(8). I have running a Samba 4.3 server on CURRENT on which I can set "min protocol" and "max protocol" as I like. this server does not allow connections via 139/tcp (filtered via ipfw). When setting "min protocol = SMB2" any mount attempt with mount_smbfs(8) fail, setting the tag to NT1 I'm able to succesfully connect via port 445/tcp. So for that reason I suspect a problem with the SMB version negotiated with the 2012 R2 server and the inability of mount_smbfs(8) (or its appropriate kernel backend) to handle any protocol version higher than NT1 (or SMB1). Thanks in advance and kind regards, Oliver
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