[Qemu-devel] [Bug 1832877] Re: qemu-bridge-helper undocumented and broken

[Michal Suchanek]

Also this is what bridge.conf contains:

# Access control file for qemu bridge helper
# Syntax consists of:
#   # comment (ignored)
#   allow all
#   allow <bridge_name>
#   deny all
#   deny <bridge_name>
#   include /path/to/additional/ACL/file
# Users are blacklisted by default and 'deny' takes precedence over 'allow'.
# Including additional ACL files allows file access permissions to be used as
# a component of the policy to allow access or deny access to specific bridges.

How are users specified? Or is the mention of users bogus?

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https://bugs.launchpad.net/bugs/1832877

Title:
  qemu-bridge-helper undocumented and broken

Status in QEMU:
  New

Bug description:
  qemu output:

  access denied by acl file
  qemu-system-ppc64: bridge helper failed

  Option description:

        -netdev bridge,id=id[,br=bridge][,helper=helper]
             Connect a host TAP network interface to a host bridge device.

             Use the network helper helper to configure the TAP interface and 
attach it to the bridge. The default network
             helper executable is /path/to/qemu-bridge-helper and the default 
bridge device is br0.

             Examples:

                     #launch a QEMU instance with the default network helper to
                     #connect a TAP device to bridge br0
                     qemu-system-i386 linux.img -netdev bridge,id=n1 -device 
virtio-net,netdev=n1


                     #launch a QEMU instance with the default network helper to
                     #connect a TAP device to bridge qemubr0
                     qemu-system-i386 linux.img -netdev bridge,br=qemubr0,id=n1 
-device virtio-net,netdev=n1

  
  What is the acl file? What is the interface to qemu-bridge-helper?

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