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openvswitch: add option for OpenFlow datapath desc

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Add a UCI config option to set the OpenFlow datapath description. This
allows setting a human readable description of the bridge, e.g.
"Building x, Floor y, AP z", which makes it easier to recognize the AP.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This commit is contained in:
Stijn Tintel 2021-08-23 16:33:19 +03:00 committed by Yousong Zhou
parent 1a400370c0
commit c05103da92
4 changed files with 27 additions and 7 deletions
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2
net/openvswitch/Makefile
View file

@ -17,7 +17,7 @@ include ./openvswitch.mk
#
PKG_NAME:=openvswitch
PKG_VERSION:=$(ovs_version)
PKG_RELEASE:=6
PKG_RELEASE:=7
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=https://www.openvswitch.org/releases/
PKG_HASH:=7d5797f2bf2449c6a266149e88f72123540f7fe7f31ad52902057ae8d8f88c38

13
net/openvswitch/README.md
View file

@ -85,12 +85,13 @@ after adding or changing these options.
The ovs_bridge section also supports the options below,
for initialising a virtual bridge with an OpenFlow controller.
| Name | Type | Required | Default | Description |
|-------------|---------|----------|--------------------------------|------------------------------------------------------------|
| disabled | boolean | no | 0 | If set to true, disable initialisation of the named bridge |
| name | string | no | Inherits UCI config block name | The name of the switch in the OVS daemon |
| controller | string | no | (none) | The endpoint of an OpenFlow controller for this bridge |
| datapath_id | string | no | (none) | The OpenFlow datapath ID for this bridge |
| Name | Type | Required | Default | Description |
|---------------|---------|----------|--------------------------------|------------------------------------------------------------|
| disabled | boolean | no | 0 | If set to true, disable initialisation of the named bridge |
| name | string | no | Inherits UCI config block name | The name of the switch in the OVS daemon |
| controller | string | no | (none) | The endpoint of an OpenFlow controller for this bridge |
| datapath_id | string | no | (none) | The OpenFlow datapath ID for this bridge |
| datapath_desc | string | no | (none) | The OpenFlow datapath description for this bridge |
The ovs_port section can be used to add ports to a bridge. It supports the options below.

1
net/openvswitch/files/openvswitch.config
View file

@ -14,6 +14,7 @@ config ovs_bridge
option disabled 1
option name 'my-bridge'
option controller 'tcp:192.168.0.1'
option datapath_desc ''
option datapath_id ''
config ovs_port

18
net/openvswitch/files/openvswitch.init
View file

@ -187,6 +187,17 @@ ovs_bridge_validate_datapath_id() {
fi
}
ovs_bridge_validate_datapath_desc() {
local dpdesc="$1"
if [ "$(echo $dpdesc | wc -c)" -le 255 ]; then
return 0
else
logger -t openvswitch "invalid datapath_desc: $dpdesc"
return 1
fi
}
ovs_bridge_init() {
local cfg="$1"
@ -208,6 +219,13 @@ ovs_bridge_init() {
}
}
config_get datapath_desc "$cfg" datapath_desc
[ -n "$datapath_desc" ] && {
ovs_bridge_validate_datapath_desc "$datapath_desc" && {
ovs-vsctl --if-exists set bridge "$name" other-config:dp-desc="$datapath_desc"
}
}
config_list_foreach "$cfg" "ports" ovs_bridge_port_add
config_foreach ovs_bridge_port_add_complex ovs_port "$name"
config_get_bool drop "$cfg" "drop_unknown_ports" 0