touch-packages team mailing list archive

[Roger James <1532431@xxxxxxxxxxxxxxxxxx>]

Attached a NetworkManager log showing what happens when the interface is
deleted.

** Attachment added: "Network Manager log"
   https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1532431/+attachment/4547334/+files/test.log

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https://bugs.launchpad.net/bugs/1532431

Title:
  NetworkManager interferes with unmanaged 802.11 monitor mode
  interfaces

Status in network-manager package in Ubuntu:
  New

Bug description:
  If a virtual 802.11 interface of type monitor is created on a 802.11
  physical interface that already has a virtual interface of type
  managed created on it, then the managed interface is deleted.
  NetworkManager sets the type of the monitor interface to managed. This
  can be illustrated by the following commands. All the interface names
  have been listed in /etc/network/interfaces as follows so
  NetworkManager should not be managing them in any way.

  # Disable network manager on interface names I want to use for monitoring
  # related purposes
  iface eth1 inet manual
  iface BigTenda inet manual
  iface LittleBelkin inet manual
  iface LittleTenda inet manual
  iface Sinmax inet manual
  iface mon0 inet manual
  iface phy0.mon manual
  iface phy1.mon manual
  iface phy2.mon manual
  iface phy3.mon manual
  iface phy4.mon manual
  iface phy5.mon manual
  iface phy6.mon manual
  iface phy7.mon manual
  iface phy8.mon manual
  iface phy9.mon manual

  root@dragon:/home/roger# systemctl start NetworkManager
  root@dragon:/home/roger# iw dev
  phy#3
  	Interface Sinmax
  		ifindex 11
  		wdev 0x300000001
  		addr 00:0f:11:92:06:b2
  		type managed
  root@dragon:/home/roger# iw phy phy3 interface add phy2.mon type monitor flags otherbss
  root@dragon:/home/roger# iw dev
  phy#3
  	Interface phy2.mon
  		ifindex 12
  		wdev 0x300000002
  		addr 00:0f:11:92:06:b2
  		type monitor
  	Interface Sinmax
  		ifindex 11
  		wdev 0x300000001
  		addr 00:0f:11:92:06:b2
  		type managed
  root@dragon:/home/roger# iw dev Sinmax del
  root@dragon:/home/roger# iw dev
  phy#3
  	Interface phy2.mon
  		ifindex 12
  		wdev 0x300000002
  		addr 00:0f:11:92:06:b2
  		type managed
  root@dragon:/home/roger# systemctl stop NetworkManager
  root@dragon:/home/roger# iw dev
  phy#3
  	Interface phy2.mon
  		ifindex 12
  		wdev 0x300000002
  		addr 00:0f:11:92:06:b2
  		type managed
  root@dragon:/home/roger# # Unplug the netwaork adapter for a few seconds
  root@dragon:/home/roger# iw dev
  phy#4
  	Interface Sinmax
  		ifindex 13
  		wdev 0x400000001
  		addr 00:0f:11:92:06:b2
  		type managed
  root@dragon:/home/roger# iw phy phy4 interface add phy2.mon type monitor flags otherbss
  root@dragon:/home/roger# iw dev
  phy#4
  	Interface phy2.mon
  		ifindex 14
  		wdev 0x400000002
  		addr 00:0f:11:92:06:b2
  		type monitor
  	Interface Sinmax
  		ifindex 13
  		wdev 0x400000001
  		addr 00:0f:11:92:06:b2
  		type managed
  root@dragon:/home/roger# iw dev Sinmax del
  root@dragon:/home/roger# iw dev
  phy#4
  	Interface phy2.mon
  		ifindex 14
  		wdev 0x400000002
  		addr 00:0f:11:92:06:b2
  		type monitor

  This stops any running or future network traces on this interface
  working.

  This is another example of network manager interfering with interfaces
  it is not supposed to be managing. See bug #1314848 which is still
  unresolved.

  The above test was carried out on Ubuntu 15.10

  network-manager:
    Installed: 1.0.4-0ubuntu5.2
    Candidate: 1.0.4-0ubuntu5.2
    Version table:
   *** 1.0.4-0ubuntu5.2 0
          500 http://gb.archive.ubuntu.com/ubuntu/ wily-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1.0.4-0ubuntu5 0
          500 http://gb.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages

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