netdev - Re: Find vlanid with non-root user

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Message-ID: <20130813144657.361b31b5@nehalam.linuxnetplumber.net>
Date:	Tue, 13 Aug 2013 14:46:57 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Amador Pahim <amador@...im.org>
Cc:	netdev@...r.kernel.org
Subject: Re: Find vlanid with non-root user

On Tue, 13 Aug 2013 17:46:45 -0300
Amador Pahim <amador@...im.org> wrote:

> Hello,
> 
> Is there a way to get vlanid from a vlan interface as a regular user?
> Default permissions to /proc/net/vlan/ is 600.
> -rw-------. 1 root root 0 Aug 13 17:23 /proc/net/vlan/eth1.10-fcoe

ip command will work as non-root user and show vlan (with -d)

$ ip -d li show dev eth0vlan
13: eth0vlan@...0: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noop state DOWN mode DEFAULT 
    link/ether 10:bf:48:84:6f:5a brd ff:ff:ff:ff:ff:ff
    vlan id 10 <REORDER_HDR>



> Not sure if deducting vlanid from vlan name is a reasonable way to do so.

No. Vlan can be made with any name.

# ip li add link eth0 name eth0vlan type vlan id 10

> Thank you in advance,.
> 
> Best Regards,

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