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Type: improvement
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Change-Id: I5ec761bfcdc13a8238b83ff46c2f1c53ec0e79d8
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Patch changes the behavior of session scavenging and fixes multiple
nat issues. Allows proper session clearing and removes issue with lingering sessions
in session db. Patch also updates and fixes CLI/API calls for better readability
of session state metrics. Fixes security issue that would allow attacker to
reuse timed out session in both directions (in2out/out2in).
Type: improvement
Signed-off-by: Filip Varga <fivarga@cisco.com>
Change-Id: I78897585a2a57291fad5db6d457941aa0a0457bd
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Type: refactor
Change-Id: If3d9f16f3a06c10b354f1eef674e8db5f3c44de7
Signed-off-by: Ole Troan <ot@cisco.com>
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Type: feature
The current feature ordering of NAT44 nodes with respect to the
ACL plugin's IPv4 input/output features is:
ip4-output: acl-plugin-out-ip4-fa runs before any NAT44 nodes
ip4-unicast: acl-plugin-in-ip4-fa runs before any NAT44 nodes
ACL rules with action permit+reflect can keep track of outbound
flows and allow the replies inbound without an explicit inbound rule.
If ACL permit+reflect rules are configured on an interface that also
has NAT44 configured with output-feature/postrouting translation of
outbound packets, the ACL rules cannot allow inbound packets. The
ACL state that was stored on the outbound flow contains the IP
addresses of the original packet, prior to translation. The inbound
packets are being evaluated by the ACL node using the translated
addresses.
The order of processing inbound needs to be the opposite of what it
was outbound for this to work. Change the NAT44 features on
ip4-output so that they run before outbound ACL nodes. This matches
the existing behavior of the NAT44 nodes which rewrite
source addresses as an input feature instead of an output feature.
This was only done for endpoint dependent mode because the regular
endpoint independent in2out-output node currently selects an
explicit next node rather than using the next node on the feature
arc.
Unit test added to configure both NAT and an ACL and ensure that
out2in packets matching an in2out flow are permitted by the ACL
and translated by NAT.
Change-Id: Ibd679c28b64c3fc3cc8c0606ea93123e384e839f
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
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Remove NAT's implementation of shallow virtual reassembly with
corresponding CLIs, APIs & tests. Replace with standalone shallow
virtual reassembly provided by ipX-sv-reass* nodes.
Type: refactor
Change-Id: I7e6c7487a5a500d591f6871474a359e0993e59b6
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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Ticket: VPP-1795
Type: fix
Change-Id: Ib3b5742119d7013c293a11eb3dd1aadf46b422dd
Signed-off-by: Filip Varga <fivarga@cisco.com>
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Type: feature
from the API doc, a table replace is:
"
The use-case is that, for some unspecified reason, the control plane
has a very different set of entries it wants in the table than VPP
currently has. The CP would thus like to 'replace' VPP's current table
only by specifying what the new set of entries shall be, i.e. it is not
going to delete anything that already eixts.
the CP delcartes the start of this procedure with this begin_replace
API Call, and when it has populated all the entries it wants, it calls
the below end_replace API. From this point on it is of coursce free
to add and delete entries as usual.
The underlying mechanism by which VPP implements this replace is
purposefully left unspecified.
"
In the FIB, the algorithm is implemented using mark and sweep.
Algorithm goes:
1) replace_begin: this marks all the entries in that table as 'stale'
2) download all the entries that should be in this table
- this clears the stale flag on those entries
3) signal the table converged: ip_table_replace_end
- this removes all entries that are still stale
this procedure can be used when an agent first connects to VPP,
as an alternative to dump and diff state reconciliation.
Change-Id: I168edec10cf7670866076b129ebfe6149ea8222e
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Type: refactor
Change-Id: I204f3f8eebc5f5d5a377e91262f91c615fd00168
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Type: fix
Since CentOS 8, RPM build script doesn't accept '#!/usr/bin/env python'
as a valid shebang line. It requires scripts to explicitly chose
between python2 or python3.
Change all to use python3 as suggested by Paul Vinciguerra.
Depends-On: https://gerrit.fd.io/r/23170
Signed-off-by: Renato Botelho do Couto <renato@netgate.com>
Change-Id: Ie72af9f60fd0609e07f05b70f8d96e738b2754d1
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Ticket: VPP-1798
Type: fix
Change-Id: I42f02d5824575720e95b9fc99cfa864252221a82
Signed-off-by: Filip Varga <fivarga@cisco.com>
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Use consistent API types.
Type: fix
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Change-Id: I5b03e5de111c3a3b8da4e9f02cba0aa99e3ee9f3
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Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: Ie15ea8f01846f87cb65e90e8762dc941441fc176
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NAT hasn't worked when NAT interfaces wasn't in
default VRF (fib_index = 0). This issue has been occurred with
interfaces with output-feature in endpoint-dependent mode.
Update VAT commands:
- update nat44_add_del_address_range
- add nat44_interface_add_del_output_feature
Ticket: VPP-1732
Type: fix
Change-Id: Iddea15dde4b948f159a0056d48c55bd917037fd1
Signed-off-by: Dmitry Vakhrushev <dmitry@netgate.com>
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Enforce that variable length fields are the last element of API messages.
Add a 'fixed' version of string type, since dealing with
multiple variable length strings turned out too painful
for the C language bindings.
The string type is now:
{
string name[64]; // NUL terminated C-string. Essentially decays to u8 name[64]
string name[]; // Variable length string with embedded len field (vl_api_string_t)
};
The latter notation could be made available to other types as well.
e.g.
{
vl_api_address_t addresses[];
}
instead of
{
u32 n_addr;
vl_api_address_t addresses[n_addr];
};
Type: fix
Change-Id: I18fa17ef47227633752ab50453e8d20a652a9f9b
Signed-off-by: Ole Troan <ot@cisco.com>
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- Relocate plugin tests for 'make test' into
src/plugins/*/test so that plugin test cases
are co-located with the plugin source code.
Type: refactor
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: I503e6a43528e14981799b735fa65674155713f67
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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