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As of now when adding new credentials for any SNMPv3 user we submit the
credential either plaintext or encrypted. A plaintext credential will be hashed
by SNMPd in the background and then passed back into the CLI so it's not stored
in cleartext. This feels like the wrong way in changing the CLI content with
data produced by a 3rd party daemon which implements the service.
It feels like the tail wiggles the entire dog.
This should be changed in the following way:
- After retrieving the plaintext password from CLI, use Python to hash the key
in advance
- Re-populate the encrypted key into the CLI and drop the plaintext one
- Generate service configuration and continue startup of SNMPd
This also fixes a race condition when SNMPd started up but not properly
provided the hasehd keys in the configuration resulting in a ConfigurationError.
Now as we also support binding SNMPd to a VRF this fixes a deadlock situation
on bootup as we can only bind late to the VRF and require up to 5 restarts of
the service - but the service will never start.
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When migrating the conf from VyOS 1.2 to 1.3 a configuration error could appear
if the user specified "info" as loglevel instead of "INFO". There was no input
validation done in 1.2 but this is now enforced in 1.3.
In VyOS 1.3 loglevel will be always lowercase on the CLI and when migrating the
config this is transformed. Also VyOS 1.2 accpeted any arbitrary loglevel. If
an invalid loglevel is found it will be set to info.
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Linux tries to bind sshd to the VRF but it is yet not ready - for any arbitrary
reason. After restarting SSH to often (rate-limiting) it is blocked by systemd.
Using Restart/RestartSec is not enough - systemd services use start rate
limiting (enabled by default). If service is started more than StartLimitBurst
times in StartLimitIntervalSec seconds is it not permitted to start any more.
Parameters are inherited from DefaultStartLimitIntervalSec (default 10s) and
DefaultStartLimitBurst (default 5).
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ids: T2659: Implement fastnetmon support
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ifconfig: T2653: move macsec interface to get_config_dict()
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While moving towards a general interface abstraction based on get_config_dict()
and the use of vyos.ifconfig.Interfaces().update() it also makes sense, to
split out common verification code to a common util file - instead of
duplicating the code, which is infact one of the main forces drivind this
transition.
vyos.configverify will hold common functions called via verify() from our
src/conf_mode scripts so we do not need to copy/paste general verifications
methods.
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By implementation misstake we exited the migrationscript if no VXLAN interface
was found but this was wrong as the same loop is used on pseudo-ethernet
interfaces. The Migrator previously only worked on pseudo-ethernet when
also a VXLAN interface was present. This has been corrected.
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This changes the dummy interface implementation to make use of get_config_dict()
and also implement a new vyos.ifconfig.Interface().update() function to gather
all the scattered calls to update common interface configuration options.
Derived classes of Interface() should extend update() to their needs for their
special interface type - e.g. bond or bridge.
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Jinja template contains some workarounds like {% if port is string %}, this
depends of the resolution of https://phabricator.vyos.net/T2636
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tunnel: T2633: add support for ip (arp) commands
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It was not possible to configure two WG peers with both utilized a pre-shared
key. This has been corrected.
WG psk can only be read from a file when starting the interface. The code for
creating this temporary file has been moved into the ifconfig.WireGuardIf()
class.
Tested with:
============
set interfaces wireguard wg0 address '192.0.2.0/31'
set interfaces wireguard wg0 peer one allowed-ips '0.0.0.0/0'
set interfaces wireguard wg0 peer one preshared-key 'e+SIIUcrnrSDHhbTtpjwKhSlSdUALA5ZvoCjfQXcvmA='
set interfaces wireguard wg0 peer one pubkey '/qQGAQ2HfLSZBSCpdgps04r9wRlK7bSFraCH9+MScmw='
set interfaces wireguard wg0 peer two allowed-ips '0.0.0.0/0'
set interfaces wireguard wg0 peer two pubkey '/qQGAQ2HfLSZBSCpdgfooor9wRlK7bSFraCH9+MScmw='
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* 'default-dict' of github.com:c-po/vyos-1x:
console-server: T2588: migrate to defaults from XML interface definitions
xml: T2588: add gitignore for generated defaults
xml: T2588: code to extract defaults values from xml
Debian: remove duplicate build dependency
xml: ssh: fix typo in service description
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T2486: DNS, vyos-hostsd fixes
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When the 'powersave' option under 'system console' was defined but no actual
serial console device this cause the following error during migration:
Loading configuration from 'config.boot'
Traceback (most recent call last):
File "/opt/vyatta/etc/config-migrate/migrate/system/16-to-17", line 45, in <module>
for device in config.list_nodes(base + ['device']):
File "/usr/lib/python3/dist-packages/vyos/configtree.py", line 236, in list_nodes
raise ConfigTreeError("Path [{}] doesn't exist".format(path_str))
vyos.configtree.ConfigTreeError: Path [b'system console device'] doesn't exist
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Boolean nodes have been removed b/c a boolean value makes less sense. The same
behavior can be achieved with the presence or absence of a node. Unfortunately
the 'autonomous-flag' node has been a negated one which did not migrate
it to 'no-autonomous-flag' if it was set to false previously.
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StartLimitIntervalSec is part of the [Unit] definition and not the [Service]
definition [1]. This caused the following warning message:
systemd[1]: /lib/systemd/system/dhcp6c@.service:12: Unknown lvalue
'StartLimitIntervalSec' in section 'Service', ignoring
This error has been introduced via commit 992d356 ("dhcpv6-pd: T421: workaround
for non existing interfaces").
[1]: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
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When deleting a peth interface the interface name was not added to the
configuration dict, which lead to referencing non existent keys.
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A user can define a port under the SSH node per device. WHen connecting to that
port and authenticating using regular credentials we will immediately drop to
the serial console. This is the same as executing "connect serial-proxy <name>".
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