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snmp: T6489: use new Python wrapper to interact with config filesystem (backport #3694)
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my_set/my_delete
(cherry picked from commit da29c9b3ab7b0cc23d64c8b033fc5a79c1b09174)
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Do no longer use my_set and my_delete as this prevents scripts beeing run under
supervision of vyos-configd.
(cherry picked from commit 7e0e8101998a6c8de6cb93c42bfbf1278c13f226)
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Remove `service upnp` as it never worked as expected, nft rules do
not integrated and custom patches do not seem like a suitable
solution for now.
Security:
UPnP has been historically associated with security risks due to its automatic
and potentially unauthenticated nature.
UPnP devices might be vulnerable to unauthorized access or exploitation.
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When adding and removing VRF instances on the fly it was noticed that the vni
statement under the VRF instance in FRR vanishes. This was caused by a race
condition which was previously designed to fix another bug.
The wierd design of a Python helper below the VRF tree to only generate the
VNI configuration nodes is now gone and all is rendered in the proper place.
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We will use _ as CLI level divider. The XML definition filename and also
the Python helper should match the CLI node.
Example:
set interfaces ethernet -> interfaces_ethernet.xml.in
set interfaces bond -> interfaces_bond.xml.in
set service dhcp-server -> service_dhcp-server-xml.in
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VyOS CLI command
set service ndp-proxy interface eth0 prefix 2001:db8::/64 mode 'static'
Will generate the following NDP proxy configuration
$ cat /run/ndppd/ndppd.conf
# autogenerated by service_ndp-proxy.py
# This tells 'ndppd' how often to reload the route file /proc/net/ipv6_route
route-ttl 30000
# This sets up a listener, that will listen for any Neighbor Solicitation
# messages, and respond to them according to a set of rules
proxy eth0 {
# Turn on or off the router flag for Neighbor Advertisements
router no
# Control how long to wait for a Neighbor Advertisment message before invalidating the entry (milliseconds)
timeout 500
# Control how long a valid or invalid entry remains in the cache (milliseconds)
ttl 30000
# This is a rule that the target address is to match against. If no netmask
# is provided, /128 is assumed. You may have several rule sections, and the
# addresses may or may not overlap.
rule 2001:db8::/64 {
static
}
}
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VyOS CLI
set protocols segment-routing srv6 locator bar prefix '2001:b::/64'
set protocols segment-routing srv6 locator foo behavior-usid
set protocols segment-routing srv6 locator foo prefix '2001:a::/64'
Will generate in FRR
segment-routing
srv6
locators
locator bar
prefix 2001:b::/64 block-len 40 node-len 24 func-bits 16
exit
!
locator foo
prefix 2001:a::/64 block-len 40 node-len 24 func-bits 16
behavior usid
exit
!
exit
!
exit
!
exit
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IGMP and PIM are two different but related things.
FRR has both combined in pimd. As we use get_config_dict() and FRR reload it
is better to have both centrally stored under the same CLI node (as FRR does,
too) to just "fire and forget" the commit to the daemon.
"set protocols igmp interface eth1" -> "set protocols pim interface eth1 igmp"
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removed extra comma invalidating json.
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Add sFlow feature based on hsflowd
According to user reviews, it works more stable and more productive
than pmacct
I haven't deleted 'pmacct' 'system flow-accounting sflow' yet
It could be migrated or deprecated later
set system sflow agent-address '192.0.2.14'
set system sflow interface 'eth0'
set system sflow interface 'eth1'
set system sflow polling '30'
set system sflow sampling-rate '100'
set system sflow server 192.0.2.1 port '6343'
set system sflow server 192.0.2.11 port '6343'
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vyos@vyos# show interfaces sstpc
sstpc sstpc10 {
authentication {
password vyos
user vyos
}
server sstp.vyos.net
ssl {
ca-certificate VyOS-CA
}
}
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before using them
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upnpd: T3420: Support UPNP protocol
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Commit 566f7f24 ("snmp: T4124: migrate to get_config_dict()") changed the
internal structure to support vyos-configd. When using SNMPv3 we need to
alter the running config by replacing the plaintext-password with an encrypted
one, this is not allowed with vyos-configd.
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level
Getting rid of "set firewall options" and move it from:
set firewall options interface ethX adjust-mss 1400
set firewall options interface ethX adjust-mss6 1400
to:
set interfaces ethernet ethX ip adjust-mss 1400
set interfaces ethernet ethX ipv6 adjust-mss 1400
In addition add an extra option called clamp-mss-to-pmtu instead of a value.
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When removing bgp (vrf) instances the assigned VRF vni must be deleted from FRR
prior the removal of the bgp settings (T3734).
This is now done by moving the CLI command "set vrf name red vni 1000" to a
dedicated Python script with a priority higher then bgp.
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Also adds check for the charon socket instead of an arbitrary sleep()
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Instead of having a dedicated ERSPAN interface type, rather move the specifics
into "interface tunnel". A migrator is not needed as there is yet no LTS release
with this feature and this is considered experimental.
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vyos-configd now supports calling a script with a passed argument;
re-include the conf_mode scripts that were excluded in ba251b3f2c.
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processing
vyos-configd does yet not support calling a script with a passed argument, thus
we will exclude the routing protocols during this time from the vyos-configd
processing.
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