From owner-freebsd-bugs  Wed Jun 13 17:20: 6 2001
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Date: Wed, 13 Jun 2001 17:20:02 -0700 (PDT)
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From: Bill Fenner <fenner@research.att.com>
Subject: Re: kern/26546: Add ioctl support to linux emulation and permit ethX 
 syntax
Reply-To: Bill Fenner <fenner@research.att.com>
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The following reply was made to PR kern/26546; it has been noted by GNATS.

From: Bill Fenner <fenner@research.att.com>
To: freebsd-gnats-submit@FreeBSD.org, ambrisko@ambrisko.com
Cc:  
Subject: Re: kern/26546: Add ioctl support to linux emulation and permit ethX 
 syntax
Date: Wed, 13 Jun 2001 17:16:13 -0700

 What do you think about:
 
 - using strtoul(), to allow more than 10 eth%d's.
 - The value could be the ifindex (won't change if a dynamic interface in
 the middle of the list is deleted); you can then also use
 ifindex2ifnet[index] (if index < if_index) instead of walking ifnet.
 
 Advantages of using ifindex: mapping is known-map "Link#X" in netstat
 -ni to "ethX", mapping doesn't change, O(1) to find the right ifnet
 Disadvantage of using ifindex: you don't get to skip P2P, loopback and
 non-broadcast interfaces in the mapping.
 
 

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