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xml: T6650: add initial op-mode cache support
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The function verify_interface_exists requires a reference to the ambient
config_dict rather than creating an instance. As access is required to
the 'interfaces' path, provide as attribute of class ConfigDict, so as
not to confuse path searches of script-specific config_dict instances.
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The CStore in_session check is a false positive outside of a config
session if a specific environment variable is set with an existing
referent in unionfs. To allow extensions when running under configd and
avoid confusion, enforce in_session returns False.
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* Only matching flags and fields used by modern RFC2890 "extended GRE" -
this is backwards-compatible, but does not match all possible flags.
* There are no nftables helpers for the GRE key field, which is critical
to match individual tunnel sessions (more detail in the forum post)
* nft expression syntax is not flexible enough for multiple field
matches in a single rule and the key offset changes depending on flags.
* Thus, clumsy compromise in requiring an explicit match on the "checksum"
flag if a key is present, so we know where key will be. In most cases,
nobody uses the checksum, but assuming it to be off or automatically
adding a "not checksum" match unless told otherwise would be confusing
* The automatic "flags key" check when specifying a key doesn't have similar
validation, I added it first and it makes sense. I would still like
to find a workaround to the "checksum" offset problem.
* If we could add 2 rules from 1 config definition, we could match
both cases with appropriate offsets, but this would break existing
FW generation logic, logging, etc.
* Added a "test_gre_match" smoketest
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new chains, priorities, and firewall groups
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T5873: ipsec remote access VPN: support VTI interfaces.
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system: op-mode: T3334: allow delayed getty restart when configuring serial ports
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Make it more obvious for the user aber the severity of his action.
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ports
* Created op-mode command "restart serial console"
* Relocated service control to vyos.utils.serial helpers, used by conf- and
op-mode serial console handling
* Checking for logged-in serial sessions that may be affected by getty reconfig
* Warning the user when changes are committed and serial sessions are active,
otherwise restart services as normal. No prompts issued during commit,
all config gen/commit steps still occur except for the service restarts
(everything remains consistent)
* To apply committed changes, user will need to run "restart serial console"
to complete the process or reboot the whole router
* Added additional flags and target filtering for generic use of helpers.
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Commit 452068ce78 ("interfaces: T6592: moving an interface between VRF instances
failed") added a similar but more detailed implementation of get_vrf_table_id()
that was added in commit adeac78ed of this PR. Move to the common available
implementation.
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* PBR can only target table IDs up to 200 and the previous PR to extend the
range was rejected
* PBR with this PR can now also target VRFs directly by name, working around
targeting problems for VRF table IDs outside the overlapping 100-200 range
* Validation ensures rules can't target both a table ID and a VRF name
(internally they are handled the same)
* Added a simple accessor (get_vrf_table_id) for runtime mapping a VRF name
to table ID, based on vyos.ifconfig.interface._set_vrf_ct_zone().
It does not replace that usage, as it deliberately does not handle non-VRF
interface lookups (would fail with a KeyError).
* Added route table ID lookup dict, global route table and VRF table defs
to vyos.defaults. Table ID references have been updated in code touched
by this PR.
* Added a simple smoketest to validate 'set vrf' usage in PBR rules
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and return an empty list in that case
(handy for migration scripts and the like)
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OpenVPN CLI-option: T6571: rename ncp-ciphers with data-ciphers
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Strongswan does not initiate session after termination via vici.
Added an CHILD SAs initialization on the initiator side
of the tunnel.
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(#3616)
* Change ipsec match-ipsec/none to match-ipsec-in and match-none-in for
fw rules
* Add ipsec match-ipsec-out and match-none-out
* Change all the points where the match-ipsec.xml.i include was used
before, making sure the new includes (match-ipsec-in/out.xml.i) are
used appropriately. There were a handful of spots where match-ipsec.xml.i
had snuck back in for output hooked chains already
(the common-rule-* includes)
* Add the -out generators to rendered templates
* Heavy modification to firewall config validators:
* I needed to check for ipsec-in matches no matter how deeply nested
under an output-hook chain(via jump-target) - this always generates
an error.
* Ended up retrofitting the jump-targets validator from root chains
and for named custom chains. It checks for recursive loops and improper
IPsec matches.
* Added "test_ipsec_metadata_match" and "test_cyclic_jump_validation"
smoketests
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interface: T6592: remove interface from conntrack ct_iface_map on deletion
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deletion
Now that interfaces are deleted from ct_iface_map during deletion it's time to
also add a smoketest ensuring there is no entry in the ct_iface_map once an
interface was deleted from the CLI.
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We always have had stale interface entries in the ct_iface_map of nftables/
conntrack for any interface that once belonged to a VRF.
This commit will always clean the nftables interface map when the interface
is deleted from the system.
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wireless: T6597: improve hostapd startup and corresponding smoketests
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To reproduce:
set vrf name mgmt table '150'
set vrf name no-mgmt table '151'
set interfaces ethernet eth2 vrf 'mgmt'
commit
set interfaces ethernet eth2 vrf no-mgmt
commit
This resulted in an error while interacting with nftables:
[Errno 1] failed to run command: nft add element inet vrf_zones ct_iface_map { "eth2" : 151 }
The reason is that the old mapping entry still exists and was not removed.
This commit adds a new utility function get_vrf_tableid() and compares the
current and new VRF table IDs assigned to an interface. If the IDs do not
match, the nftables ct_iface_map entry is removed before the new entry is added.
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as opposed to entire subsystems
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An empty component version string will trigger a full migration,
however, the case of component_version is None was missed in a utility
function. Fix comment formatting.
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Sometimes we need a reliable way to lock an execution until some other operation
is not done.
This commit introduces locking util, which can be used as a common lock, even
between different processes.
Usage example:
```
from vyos.utils.locking import Lock
lock = Lock('my_lock_id')
lock.acquire(timeout=10)
print(f'Lock acquired: {lock.is_locked}')
lock.release()
```
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