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Date: Wed, 31 Jan 2018 08:58:28 -0800
From: Eric Dumazet <eric.dumazet@...il.com>
To: Stephen Hemminger <stephen@...workplumber.org>,
David Ahern <dsahern@...il.com>
Cc: netdev <netdev@...r.kernel.org>,
Maciej Żenczykowski <maze@...gle.com>
Subject: [BUG iproute2] ip tuntap show
ip tuntap enumerates devices using /sys/class/net which is unusual.
Should we replace this enumeration using /proc/net/dev like "ip tunnel" ?
After "unshare -n" maybe mounting /sys should not be required for
proper iproute2 behavior.
At least ip command should adopt a common enumeration method.
What do you think ?
Thanks.
lpaa5:~# cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
adp0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
uinput4: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
dynencap4: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
sixtofour0: 696886 6733 0 0 0 0 0 0 480743 4445 0 0 0 0 0 0
uinput6: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
gretap0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ip6gre0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
tunl0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ip6tnl0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
gre0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
sit0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
sixdecap0: 0 0 0 0 0 0 0 0 559849 2371 0 0 0 0 0 0
lo: 80924524 222675 0 0 0 0 0 0 80924524 222675 0 0 0 0 0 0
eth2: 8898473491 131730002 0 0 0 0 0 89 8606929352 128406009 0 0 0 0 0 0
dynencap6: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
eth1: 9219322658 137558705 0 0 0 0 0 1592 9438658576 140822798 0 0 0 0 0 0
eth0: 18117796393 269288710 0 0 0 0 0 1682 18045588486 269228813 0 3 0 0 0 0
lpaa5:~# unshare -n
lpaa5:~# cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
lpaa5:~# ip tuntap
adp0: tap vnet_hdr UNKNOWN_FLAGS:940
lpaa5:~# mount -t sysfs sysfs /sys
lpaa5:~# ip tuntap
lpaa5:~# ls -l /sys/class/net
total 0
-rw-r--r-- 1 root root 4096 Jan 31 08:51 bonding_masters
lrwxrwxrwx 1 root root 0 Jan 31 08:51 lo -> ../../devices/virtual/net/lo
lpaa5:~#
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