poky-qemu-ifup can run standalone by root in order to configure a bank
of tap devices for later qemu use.
These devices will, if possible, be owned by a specified group to
which qemu users must belong.
If the kernel is too old to support TUNSETGROUP, then it falls back to
setting the tap device to be owned by a particular user, and that user
will be the only one allowed to use it.
Also overall usability improvements to the scripts, usage() help, etc.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Scott Garman <scott.a.garman@intel.com>
This patch bases the tap IP address on the device number, providing
each device with its own IP address.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
With this patch, a persistent TAP device is set up by poky-qemu-ifup,
which is now run before qemu. The qemu command line now uses the
device that was constructed (rather than the hard-coded tap0) and it
is told not to run any networking scripts.
When qemu shuts down, poky-qemu-ifdown removes the TAP device.
sudo use - sudo is used to run poky-qemu-ifup. sudo is no longer used
to run qemu, as qemu no longer needs privileges to set up networking.
poky-qemu-ifdown is run without privileges, as you can remove a TAP
device which you own.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Richard Purdie
Jeff Dike
Joshua Lock
Marcin Juszkiewicz
Richard Purdie