From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonatan Schlag To: network@lists.ipfire.org Subject: [PATCH 1/3] Add new function: device_get_by_assigned_ip_address() Date: Fri, 23 Feb 2018 11:05:33 +0000 Message-ID: <1519383935-3556-1-git-send-email-jonatan.schlag@ipfire.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0915821423517779017==" List-Id: --===============0915821423517779017== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable This function is used to get a device from an IP address which is assigned to the device. This function needs to be introduced to set the routes for IPsec correctly. Signed-off-by: Jonatan Schlag --- src/functions/functions.device | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/src/functions/functions.device b/src/functions/functions.device index cb4911f..2de1ad9 100644 --- a/src/functions/functions.device +++ b/src/functions/functions.device @@ -1058,3 +1058,30 @@ device_queue_set_smp_affinity() { =20 __processor_id_to_bitmap ${processor} > ${path} } + +# Tries to find a device which has the given IP address assigned +device_get_by_assigned_ip_address() { + local ip=3D${1} + + assert isset ip + + local device + + # Read the first line of ip addr show to + read -r device <<< $(ip addr show to "${ip}") + + # If we did not found a device we return with ${EXIT_ERROR} + if ! isset device; then + return ${EXIT_ERROR} + fi + + # We get something like: + # 3: upl0: mtu 1500 qdisc mq state UP gro= up default qlen 1000 + # and we want upl0 so we take the second word and removing the : + device=3D(${device}) + device=3D${device[1]} + device=3D${device%:} + + print "${device}" + return ${EXIT_OK} +} --=20 2.6.3 --===============0915821423517779017==--