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Joshua Watt 08220028e5 runqemu: Add network bridge support

Qemu supports attaching the virtual machine to an existing network
bridge interface via the qemu-bridge-helper program (as long as the
system is correctly configured to give the user permissions). Add
support for runqemu to do this also via the "bridge=<INTERFACE>"
argument. Note that for this to work correctly, the host
qemu-bridge-helper must be used, not the one that might have been built
by qemu-native. In order for qemu to correctly find this program, a
qemu-oe-bridge-helper program has been added to qemu-helper-native, and
runqemu will use this helper as the bridge helper. The helper will look
for the host qemu-bridge-helper first by looking in the
QEMU_BRIDGE_HELPER environment variable, then by search common paths
where the helper is installed.

(From OE-Core rev: 9e7b38c61c6b84b7f137c733ac5da9414025693d)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2020-01-10 21:18:23 +00:00

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#! /bin/sh

Copyright 2020 Garmin Ltd. or its subsidiaries

SPDX-License-Identifier: GPL-2.0

Attempts to find and exec the host qemu-bridge-helper program

If the QEMU_BRIDGE_HELPER variable is set by the user, exec it.

if [ -n "$QEMU_BRIDGE_HELPER" ]; then exec "$QEMU_BRIDGE_HELPER" "$@" fi

Search common paths for the helper program

BN="qemu-bridge-helper" PATHS="/usr/libexec/ /usr/lib/qemu/"

for p in $PATHS; do if [ -e "$p/$BN" ]; then exec "$p/$BN" "$@" fi done

echo "$BN not found!" > /dev/stderr exit 1

548 B Executable File Raw Blame History