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The current VyOS CLI parser code written in Python contains a ton of duplicates
which I can also hold myself accountable for - or maybe mainly me - depends on
the angle of judge.
While providing a new update() method in vyos.ifconfig.interfaces() this is
extended for ethernet based interfaces which also supports 802.1q, 802.1ad
VLANs. This commit migrates the existing codebase for an ethernet based
interfaces and implements the missing parts for VLANs. Adding or migrating other
interfaces (e.g. bridge or bond) will become much easier as they must reuse
the entire functionality - we now walk towards a single codepath.
Thanks for all who made this combined effort possible!
Signed-off-by: Christian Poessinger <christian@poessinger.com>
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Merge two dictionaries. Only keys which are not present in destination will
be copied from source, anything else will be kept untouched. Function will
return a new dict which has the merged key/value pairs.
Before:
{'device': {'usb0b2.4p1.0': {'speed': '9600'},
'usb0b2.4p1.1': {'data-bits': '8',
'parity': 'none',
'speed': '115200',
'stop-bits': '2'}}}
After:
{'device': {'usb0b2.4p1.0': {'data-bits': '8',
'parity': 'none',
'speed': '9600',
'stop-bits': '1'},
'usb0b2.4p1.1': {'data-bits': '8',
'parity': 'none',
'speed': '115200',
'stop-bits': '2'}}}
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Commit 728b1feaf744 ("dhcpv6-pd: T2551: fix prefix length not set in config")
reworked the way the configuration path is accesses on the individual
interfaces, but it was missed out to apply it correctly when reading in
sla-len and sla-id values.
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Retrieving the CLI nodes from current config was missed out and only
implemented for PPPoE.
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After commit d5b58517f883 ("dhcpv6-pd: pppoe: T2506: restructure CLI") the
CLI syntax has been adjusted for a better definition of DHCPv6-PD prefix length
option. Verifying a properly rendered template indeed did not happen which
cause the function to vanish for non PPPoE interfaces.
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Some ISPs (e.g. Comcast) only delegate a /64 by default. You have to explicitly
"ask" for a bigger (e.g. /60) prefix. This commit adds a CLI node to request
a specific prefix length in the range 32 - 64.
dhcpv6-options {
prefix-delegation {
length 60
}
}
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Rename the CLI nodes for prefix delegation from "dhcpv6-options delegate
<interface>" to "dhcpv6-options prefix-delegation interface <interface>".
The change is required to add the possibility to request for specific prefix
sized via the CLI. That option was not possible with the old configuration
tree.
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Add support for prefix delegation when receiving the prefix via ethernet,
bridge, bond, wireless.
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Dictionary is used to remove the amount of duplicated code by e.g. ethernet
or bridge interface.
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To make SLAAC and DHCPv6 work when forwarding=1, accept_ra must be 2
(default for accept_ra is 1).
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Previously all vlan configs, which are dicts, were appended to a simple
list, with the distinguishing 'id' stored inside the dicts themselves.
This worked, but wasn't ideal.
This commit converts them to dicts, where the key is the VLAN ID and
value the config dict of that VLAN. This makes it posible to access
single VLANs by their ID (key) and we can for-loop and get both the ID
and config with: 'for vif_id, vif in conf["vif"].items():'
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Commit 3fdf0093a introduced code that removed all addresses from an
interface when that interface is disabled. This is wrong, as other
configured services may be listening on these addresses and may fail to
start if their configured address isn't present.
It also caused a commit error when applying dhcp-server configuration:
DHCP server configuration error!
None of configured DHCP subnets does not have appropriate
primary IP address on any broadcast interface.
This commit reverts it to prior behavior, which was to just put the
interface admin down and leave all addresses configured, other than the
IPv6 'fe80::EUI-64/64' link-local, which it deletes, as the interface
may not have a MAC if it's put down.
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Bridge members should not have addresses assigned.
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- rewrite the function to support both bridge and bonding interface types,
if the type is passed it searches only that type, otherwise it searches
both
- move is_member check out of the deleted condition
- move is_member check to intf_from_dict for interfaces that use it
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This is needed as later functions depend on it
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Remove one unnecessary call to conf.get_level()
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off-by one line where the IP were added to the add list
and not the remove list
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implement disable_state which looks if the current node, or some
designated parent node are set are 'disable' and thefore should
be ignored.
break down the function vlan_to_dict in it multiple components
add_to_dict which can parse vif, vif-s, or vif-c and add them
to the configuration dictionary
intf_to_dict which setup a base configuration dictionary from the
interface Config() with addresses, arp, disable, ...
it is used by vlan_to_dict but can and will be used by other interfaces
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Autoconfigure addresses using Prefix Information in Router Advertisements.
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... to new XML and Python based frontend/backend.
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Provide an XML/Python abstraction to
* ip disable-arp-filter
* ip enable-arp-accept
* ip enable-arp-announce
* ip enable-arp-ignore
The old implementation can co-exist until the last interfaces have been
migrated.
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A delta-check problem caused the deletion of each and every VLAN interface
when anything under an interface has been changed. This also cause PPPoE
session interruptions.
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ingress-qos-map - defines a mapping of VLAN header prio field to the Linux
internal packet priority on incoming frames. The format is FROM:TO with
multiple mappings separated by spaces.
egress-qos-map - defines a mapping of Linux internal packet priority to VLAN
header prio field but for outgoing frames. The format is the same as for
ingress-qos-map.
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A generic function which can parse the VLAN (vif, vif-s, cif-c) nodes in a
config session. A dictionary describing the VLAN is returned.
A good example will be the interface-bonding.py script used to generate bond
interfaces in the system. It is used as follows:
if conf.exists('vif'):
for vif in conf.list_nodes('vif'):
# set config level to vif interface
conf.set_level(cfg_base + ' vif ' + vif)
bond['vif'].append(vlan_to_dict(conf))
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A list containing only unique elements not part of the other list is
returned. This is usefull to check e.g. which IP addresses need to be
removed from the OS.
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