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OPENVPN: T6555: add server-bridge options in mode server
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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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T4072: firewall extend bridge firewall
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prerouting chain; re introduce <set vrf> in policy; change global options for passing traffic to IPvX firewall; update smoketest
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T5873: ipsec remote access VPN: support VTI interfaces.
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vrf: T6603: conntrack ct_iface_map must only contain one entry for iifname/oifname
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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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T6362: Create conntrack logger daemon
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OpenVPN CLI-option: T6571: rename ncp-ciphers with data-ciphers
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smoketest: T6592: remove unused "import os"
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smoketest: T6614: initial support for op-mode command testing
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smoketest: T5705: use locally connected remote syslog servers
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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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As there has been no route to the configured syslog servers, smoketests produced:
rsyslogd: omfwd: socket 8: error 101 sending via udp: Network is unreachable
Rather use some fake syslog servers from 127.0.0.0/8 which are directly
connected and we do not need to look up a route, which will suppress the above
error message.
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iifname/oifname
When any of the following features NAT, NAT66 or Firewall is enabled, for every
VRF on the CLI we install one rule into nftables for conntrack:
chain vrf_zones_ct_in {
type filter hook prerouting priority raw; policy accept;
counter packets 3113 bytes 32227 ct original zone set iifname map @ct_iface_map
counter packets 8550 bytes 80739 ct original zone set iifname map @ct_iface_map
counter packets 5644 bytes 67697 ct original zone set iifname map @ct_iface_map
}
This is superfluous.
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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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Only some (e.g. ethernet or wireguard) interfaces validate if the supplied VRF
actually exists. If this is not validated, one can pass an invalid VRF to the
system which generates an OSError exception.
To reproduce
set interfaces vxlan vxlan1 vni 1000
set interfaces vxlan vxlan1 remote 1.2.3.4
set interfaces vxlan vxlan1 vrf smoketest
results in
OSError: [Errno 255] failed to run command: ip link set dev vxlan1 master smoketest_mgmt
This commit adds the missing verify_vrf() call to the missing interface types
and an appropriate smoketest for all interfaces supporting VRF assignment.
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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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T6525: Add default dir for ext-scripts without absolute path
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wireless: T6597: improve hostapd startup and corresponding smoketests
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T6599: ipsec: support disabling rekey of CHILD_SA, converge and fix defaults
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Also adds support for life_bytes, life_packets, and DPD for
remote-access connections. Changes behavior of remote-access esp-group
lifetime setting to have parity with site-to-site connections.
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Commit 452068ce7 ("interfaces: T6592: moving an interface between VRF instances
failed") introduced a new helper to retrieve the VRF table ID from the Kernel.
This commit migrates the old code path where the individual fields got queried
to the new helper vyos.utils.network.get_vrf_tableid().
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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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This was found during smoketesting as thoase started to repeadingly fail in the last weeks
File "/usr/libexec/vyos/tests/smoke/cli/test_interfaces_wireless.py", line 534, in test_wireless_security_station_address
self.assertTrue(process_named_running('hostapd'))
AssertionError: None is not true
Digging into this revealed that this is NOT related to the smoketest coding but
to hostapd/systemd instead. With a configured WIFI interface and calling:
"sudo systemctl reload-or-restart hostapd@wlan1" multiple times in a short
period caused systemd to report:
"Jul 18 16:15:32 systemd[1]: hostapd@wlan1.service: Deactivated successfully."
According to the internal systemd logic used in our version this is explained by:
/* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not
* undo what has already been enqueued. */
if (unit_stop_pending(UNIT(s)))
allow_restart = false;
if (s->result == SERVICE_SUCCESS)
s->result = f;
if (s->result == SERVICE_SUCCESS) {
unit_log_success(UNIT(s));
end_state = SERVICE_DEAD;`
Where unit_log_success() generates the log message in question.
Improve the restart login in the wireless interface script and an upgrade to
hostapd solved the issue.
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