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Type: fix
Currently, when a wg interface is administratively disabled initially or
during operation, handshake packets continue to be sent. Data packets
stop being sent because routes pointing to the wg interface will not be
used. But data keys remain.
With this fix, when a wg interface is administratively disabled during
peer creation, avoid connection initialization to the peer. Data keys
and timers should be empty at this point. When a wg interface is
disabled during operation, disable all peers (i.e. stop all timers,
clear data keys, etc.). Thus, state should be identical in both cases.
When a wg interface is administratively enabled, enable all peers (i.e.
get ready to exchange data packets and initiate a connection). Also,
cover these scenarios with tests.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: Ie9a620077e55d519d21b0abc8c0d3c87b378bca3
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Type: fix
As per the protocol:
A handshake initiation is retried after "REKEY_TIMEOUT + jitter" ms,
if a response has not been received...
Currently, if retransmit handshake timer is started, it will trigger
after "REKEY_TIMEOUT + jitter" ms and will try to send a handshake
initiation via wg_send_handshake() given that no responses have been
received. wg_send_handshake() will verify that time stored in
REKEY_TIMEOUT has passed since last handshake initiation sending and if
has, will send a handshake initiation. Time when a handshake initiation
was last sent is stored in last_sent_handshake.
The problem is that last_sent_handshake is not only updated in
wg_send_handshake() when sending handshake initiations but also in
wg_send_handshake_response() when sending handshake responses. When
retransmit handshake timer triggers and a handshake response has been
sent recently, a handshake initiation will not be sent because for
wg_send_handshake() it will look like that time stored in REKEY_TIMEOUT
has not passed yet. Also, the timer will not be restarted.
wg_send_handshake_response() must not update last_sent_handshake,
because this time is used only when sending handshake intitiations. And
the protocol does not say that handshake initiation retransmission and
handshake response sending (i.e. replying to authenticated handshake
initiations) must coordinate.
With this fix, stop updating last_sent_handshake in
wg_send_handshake_response().
Also, this fixes tests that used to wait for "REKEY_TIMEOUT + 1" seconds
and did not receive any handshake initiations. Then they fail.
Also, long-running tests that send wrong packets and do not expect
anything in reply may now receive handshake intiations, consider them as
replies to the wrond packets, and fail. Those are updated to filter out
handshake initiations in such verifications. Moreover, after sending
wrong packets, error counters are already inspected there to confirm
packet processing was unsuccessful.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I43c428c97ce06cb8a79d239453cb5f6d1ed609d6
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Type: test
Change-Id: I7b2314a731c83b3dcd69c999edb8ebed53839724
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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Outgoing packets can be now traced via:
trace add bfd-process <count>
Type: improvement
Change-Id: Ia19af6054289b18f55e518dbea251a2bee9b9457
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
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This patch introduces fast path matching for inbound traffic ipv6.
Fast path uses bihash tables in order to find matching policy.
Adding and removing policies in fast path is much faster than in current
implementation. It is still new feature and further work needs
and can be done in order to improve the perfromance.
Type: feature
Change-Id: Iaef6638033666ad6eb028ffe0c8a4f4374451753
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
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Usage:
test/run.py -r -t {test_filter}
Instead of starting a new instance of VPP, when the -r argument
is provided, test is run against a running VPP instance. Optionally,
one can also set the VPP socket directory using the -d
argument. The default location for socket files is
/var/run/user/${uid}/vpp and /var/run/vpp if VPP is started
as root.
Type: improvement
Change-Id: I05e57a067fcb90fb49973f8159fc17925b741f1a
Signed-off-by: Naveen Joy <najoy@cisco.com>
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Type: test
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: I218059de5d05680d661f302293475b6c2a7bf81d
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It's known there're one or more 32-bit increments in the ip
header. So just check ip router alert option length with minimal
performance impact, and don't care of the total options length.
Type: fix
Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru>
Signed-off-by: Dmitry Valter <d-valter@yandex-team.ru>
Change-Id: I46dd06516f793846b931a1dc8612f2735f8d24d3
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When we follow arp feature arc for proxy-arp, we should still update
the error reason in case proxy-arp cannot handle the arp request and
drops it.
Type: improvement
Change-Id: I046df017ca2056cfc12af0f0a968b401058bcd6d
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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The number of available dynamic ports is set to (0xffff - 1024) =
64511, which is not divisable by the pow2 number of workers - the
only integer divisors are 31 and 2081.
So, total dynamic port range of all workers will be less than it:
1 wrk: n = (port_per_thread = 64511/1)*1 = 64511 + 1025 = 65536
2 wrk: n = (port_per_thread = 64511/2)*2 = 64510 + 1025 = 65535
4 wrk: n = (port_per_thread = 64511/4)*4 = 64508 + 1025 = 65533
8 wrk: n = (port_per_thread = 64511/8)*8 = 64504 + 1025 = 65529
...
As seen, with multiple workers there are unused trailing ports for every
nat pool address and that is the reason of out-of-bound index in the
worker array on out2in path due (port - 1024) / port_per_thread math.
This was fixed in 5c9f9968de63fa627b4a72b344df36cdc686d18a, so packets
to unused ports will go to existing worker and dropped there.
Per RFC 6335 https://www.rfc-editor.org/rfc/rfc6335#section-6:
6. Port Number Ranges
o the System Ports, also known as the Well Known Ports, from 0-1023
(assigned by IANA)
o the User Ports, also known as the Registered Ports, from 1024-
49151 (assigned by IANA)
o the Dynamic Ports, also known as the Private or Ephemeral Ports,
from 49152-65535 (never assigned)
According that let's allocate dynamic ports from 1024 and have full port
range with a wide range of the workers number - 64 integer divisors in
total, including pow2 ones:
1 wrk: n = (port_per_thread = 64512/1)*1 = 64512 + 1024 = 65536
2 wrk: n = (port_per_thread = 64512/2)*2 = 64512 + 1024 = 65536
3 wrk: n = (port_per_thread = 64512/3)*3 = 64512 + 1024 = 65536
4 wrk: n = (port_per_thread = 64512/4)*4 = 64512 + 1024 = 65536
5 wrk: n = (port_per_thread = 64512/5)*5 = 64510 + 1024 = 65534
6 wrk: n = (port_per_thread = 64512/6)*6 = 64512 + 1024 = 65536
7 wrk: n = (port_per_thread = 64512/7)*7 = 64512 + 1024 = 65536
8 wrk: n = (port_per_thread = 64512/8)*8 = 64512 + 1024 = 65536
...
Modulo from 5c9f9968de63fa627b4a72b344df36cdc686d18a is still required
when the numbers of workers is not the integer divisor of 64512.
Type: fix
Fixes: 5c9f9968de63fa627b4a72b344df36cdc686d18a
Change-Id: I9edaea07e58ff4888812b0d86cbf41a3784b189e
Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru>
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This patch introduces fast path matching for inbound traffic ipv4.
Fast path uses bihash tables in order to find matching policy. Adding
and removing policies in fast path is much faster than in current
implementation. It is still new feature and further work needs
and can be done in order to improve perfromance.
Type: feature
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Change-Id: Ifbd5bfecc21b76ddf8363f5dc089d77595196675
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Free node frames in worker mains on refork. Otherwise these frames are
never returned to free pool and it causes massive memory leaks if
performed under traffic load
Type: fix
Signed-off-by: Dmitry Valter <d-valter@yandex-team.ru>
Change-Id: I15cbf024a3f4b4082445fd5e5aaa10bfcf77f363
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Type: improvement
If an SA protecting an IPv6 tunnel interface has UDP encapsulation
enabled, the code in esp_encrypt_inline() inserts a UDP header but does
not set the next protocol or the UDP payload length, so the peer that
receives the packet drops it. Set the next protocol field and the UDP
payload length correctly.
The port(s) for UDP encapsulation of IPsec was not registered for IPv6.
Add this registration for IPv6 SAs when UDP encapsulation is enabled.
Add punt handling for IPv6 IKE on NAT-T port.
Add registration of linux-cp for the new punt reason.
Add unit tests of IPv6 ESP w/ UDP encapsulation on tun protect
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Change-Id: Ibb28e423ab8c7bcea2c1964782a788a0f4da5268
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In RFC 7296, CREATE_CHILD_SA Exchange may contain the KE payload
to enable stronger guarantees of forward secrecy.
When the KEi payload is included in the CREATE_CHILD_SA request,
responder should reply with the KEr payload and complete the key
exchange, in accordance with the RFC.
Type: improvement
Signed-off-by: Atzm Watanabe <atzmism@gmail.com>
Change-Id: I13cf6cf24359c11c3366757e585195bb7e999638
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Type: fix
After peers roaming support addition, FIB entry tracking stopped
working. For example, it can be observed when an adjacency is stacked on
a FIB entry by the plugin and the FIB entry hasn't got ARP resolution
yet. Once the FIB entry gets ARP resolution, the adjacency is not
re-stacked as it used to. This results in endless ARP requests when a
traffic is sent via the adjacency.
This is broken because the plugin stopped using "midchain delegate" with
peers roaming support addition. The reason is that "midchain delegate"
didn't support stacking on a different FIB entry which is needed when
peer's endpoint changes. Now it is supported there (added in 36892).
With this fix, start using "midchane delegate" again and thus, fix FIB
entry tracking. Also, cover this in tests.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: Iea91f38739ab129e601fd6567b52565dbd649371
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Type: refactor
- refactored VPP test code to remove "ignore_path" variable
from "discover_tests" function and "run_test" code
- configured VPP test makefile, config file, and 'run.sh' shell script
to move "venv" directory from "test" dir to "build-root" dir
Signed-off-by: Saima Yunus <yunus.saima.234@gmail.com>
Change-Id: Id2beecbb99f24ce13ed118a1869c5adbef247e50
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Type: improvement
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: I822ead1495edb96ee62e53dc5920aa6c565e3621
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Type: improvement
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Ica7de5a493389c6f53b7cf04e06939473a63d2b9
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Type: improvement
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Ifda8ca8d26912c750a77d2ca889e1638ca83d85a
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Type: fix
Signed-off-by: Atzm Watanabe <atzmism@gmail.com>
Change-Id: I11b6107492004a45104857dc2dae01b9a5a01e3b
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Type: feature
With this change, peers are able to roam between different external
endpoints. Successfully authenticated handshake or data packet that is
received from a new endpoint will cause the peer's endpoint to be
updated accordingly.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: Ib4eb7dfa3403f3fb9e8bbe19ba6237c4960c764c
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Type: feature
With this change, if being under load a handshake message with both
valid mac1 and mac2 is received, the peer will be rate limited. Cover
this with tests.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: Id8d58bb293a7975c3d922c48b4948fd25e20af4b
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Type: feature
stats of the like from:
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-arp-yang-model-03#section-4
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Icb1bf4f6f7e6ccc2f44b0008d4774b61cae96184
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Type: feature
With this change:
- if the number of received handshake messages exceeds the limit
calculated based on the peers number, under load state will activate;
- if being under load a handshake message with a valid mac1 is
received, but mac2 is invalid, a cookie reply will be sent.
Also, cover these with tests.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I3003570a9cf807cfb0b5145b89a085455c30e717
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Type: fix
Signed-off-by: Atzm Watanabe <atzmism@gmail.com>
Change-Id: I065bd5c26055d863d786023970e7deeed261b31c
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Type: fix
Fixes: 4830e4f78fb8e46b23a1a0711cd06969a77d8d95
Change-Id: Iddc73dbda633acd72bd82e52f8ae83c17e3940f6
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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Use the script test/run.py to run a test named test_vm_tap
inside a QEMU VM. The run script builds out a virtual env,
launches a light weight QEMU VM, mounts host directories,
starts VPP inside the VM and runs the test. The test named
test_vm_tap, creates two tap v2 interfaces in separate Linux
namespaces and using iPerf, streams traffic between the VM
and VPP. All data files are stored in the directory named
/tmp/vpp-vm-tests. To clean up, use the make test-wipe
command.
Usage:
test/run.py --vm --debug --test test_vm_tap
Type: improvement
Change-Id: I4425dbef52acee1e5b8af5acaa169b89a2c0f171
Signed-off-by: Naveen Joy <najoy@cisco.com>
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Type: feature
Currently, if a handshake message is sent and a cookie message is
received in reply, the cookie message will be ignored. Thus, further
handshake messages will not have valid mac2 and handshake will not be
able to be completed.
With this change, process received cookie messages to be able to
calculate mac2 for further handshake messages sent. Cover this with
tests.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I6d51459778b7145be7077badec479b2aa85960b9
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This patch introduces set of python tests for fast path ipv6, based on
ipv4 tests. Some missing parts of ipsec framework has been added
in order to test ipv6 implementation.
Type: feature
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Change-Id: Icc13322787d76485c08106bad2cb071947ad9846
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This patch introduces set of python tests for fast path, based on
flow cache tests. There was a bug in calculating of policy mask when
adding to fast path, which has been fixed. Memory size for bihash
tables for both ip4 and ip6 outbound fast path policies
has been increased.
Type: feature
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Change-Id: Ibeee904ae7179f5dafbd45bb44282436f0b80821
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Type: fix
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: Idc0fdebfea29c241d8a36128241ccec03eace5fd
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Currently 0 has been used as the wildcard representing ANY type of
protocol. However 0 is valid value of ip protocol (HOPOPT) and therefore
it should not be used as a wildcard. Instead 255 is used which is
guaranteed by IANA to be reserved and not used as a protocol id.
Type: improvement
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Change-Id: I2320bae6fe380cb999dc5a9187beb68fda2d31eb
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Issue:
Let iperf3 server run via ldp and vcl on top of vpp's host stack. If
iperf3 client connects this iperf3 server with tcp MSS setting option,
iperf3 server will always crash.
Root cause:
When MSS option is specified by iperf3 client, iperf3 server will
recreate the listening socket firstly, then call setsockopt() to set MSS
immediately. Iperf3 code can be referred here:
https://github.com/esnet/iperf/blob/58332f8154e2140e40a6e0ea060a418138291718/src/iperf_tcp.c#L186.
However, in vcl layer vpp_evt_q of this recreated session is not
allocated yet. So iperf3 server crashes with vpp_evt_q null pointer access.
Fix:
Add session vpp_evt_q null pointer check in vcl_session_transport_attr().
Add a vcl test case for this MSS option scenario.
Type: fix
Signed-off-by: Liangxing Wang <liangxing.wang@arm.com>
Change-Id: I2863bd0cffbe6e60108ab333f97c00530c006ba7
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Type: fix
Currently, neighbor adjacencies on a wg interface are converted into a
midchain only if one of the peers has a matching allowed prefix
configured. If create a route that goes through a wg interface but the
next-hop address does not match any allowed prefixes, an ARP/ND request
will try to be sent via the wg interface to resolve the next-hop address
when matching traffic occurs. And sending an ARP request will cause VPP
to crash while copying hardware address of the wg interface which is
NULL. Sending an ND message will not cause VPP to crash but the error
logged will be unclear (no source address).
With this fix, convert all neighbor adjacencies on a wg interface into a
midchain and update tests to cover the case. If there is no matching
allowed prefix configured, traffic going such routes will be dropped
because of "Peer error". No changes if there is matching allowed prefix
configured.
Also, fix getting peer by adjacency index.
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I15bc1e1f83de719e97edf3f7210a5359a35bddbd
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Serveral IPSec SPD cases re-use the same test class name,
leads to test error when do parrallel test with TEST_JOBS=16,
change the test class names to unique values.
Type: fix
Fixes: 7cd35f5d688d9e3bddf66602655274dae944b086
Signed-off-by: Tianyu Li <tianyu.li@arm.com>
Change-Id: Ia5768654ddb6274531222761cc82b226d97325a9
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When running tests via run.sh, default setting of None would cause
failed directory symlink to appear in vpp workspace with an ugly name.
This patch places the symlink in temporary directory.
Type: fix
Fixes: b23ffd7ef216463c35b75c831e6a27e58971f4ec
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
Change-Id: Ic1715eba7ac1f82f71855e2aeb9b659d27bbb3af
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Type: improvement
With this change:
- add dump/details messages to obtain interfaces for which IPFIX flow
record generation is enabled;
- add get message to obtain parameters;
- add a new message to set parameters with validation present and to
correspond with get/set naming;
- add tests for get/set parameters and dump/details interfaces.
Change-Id: I09f6ec990171ac8bcb9d2f5c92629803b8ab6c28
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
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Type: fix
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I944dc8418e7ab541ae96141c15e04abb33635ac4
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Type: feature
Currently, the plugin supports only IPFIX flow record generation for
outbound packets.
With this change:
- add a new API message for enabling the feature on an interface that
accepts direction (rx, tx, both);
- update existing debug command for feature enabling to accept
direction;
- update existing debug command for showing currently enabled feature
on interfaces to display direction;
- update templates to include a direction field;
- generate flow records on the specified direction and data path;
- report direction in flow data;
- update tests to use the new API;
- add tests for inbound flows.
Change-Id: I121fd904b38408641036ebeea848df7a4e5e0b30
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
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- add pnat_binding_add_v2 which explicitly requires match mask to
set to PNAT_PROTO if we want to match on IP Protocol
- fix pnat_binding_add backward compatibility i.e. no need to set
match mast to PNAT_PROTO
Type: improvement
Signed-off-by: Fahad Naeem <fahadnaeemkhan@gmail.com>
Change-Id: I5a23244be55b7d4c10552c555881527a4b2f325f
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Add --check to black to pass back error value and fail checkstyle if
a reformat would occur.
Type: fix
Fixes: d9b0c6fbf7aa5bd9af84264105b39c82028a4a29
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
Change-Id: I9a1fbe224929fc461ff833a589f73ca06e7cc9d6
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Drop pycodestyle for code style checking in favor of black. Black is
much faster, stable PEP8 compliant code style checker offering also
automatic formatting. It aims to be very stable and produce smallest
diffs. It's used by many small and big projects.
Running checkstyle with black takes a few seconds with a terse output.
Thus, test-checkstyle-diff is no longer necessary.
Expand scope of checkstyle to all python files in the repo, replacing
test-checkstyle with checkstyle-python.
Also, fixstyle-python is now available for automatic style formatting.
Note: python virtualenv has been consolidated in test/Makefile,
test/requirements*.txt which will eventually be moved to a central
location. This is required to simply the automated generation of
docker executor images in the CI.
Type: improvement
Change-Id: I022a326603485f58585e879ac0f697fceefbc9c8
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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Type: improvement
Change-Id: Ibc1b5059ed51c34334340534e9eb68121f556bce
Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com>
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It looks like in a distant past we were using a vnet_rewrite but this
no longer the case.
Type: fix
Change-Id: Ib8d336aec7d5abd7749f543739f531144e76e551
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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Type: fix
set use_custom_mac for args in create_vhost_user_if_v2 API
Add testcase for custom mac-address
Signed-off-by: Fahad Naeem <fahadnaeemkhan@gmail.com>
Change-Id: Iac64d818e0f1e6d36187fe769ee33d202aaafd05
Signed-off-by: Fahad Naeem <fahadnaeemkhan@gmail.com>
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Catch exception if sw_if_index is invalid when querying interface
binding config. If the interface is not there, it's surely not bound to
any table ...
Type: improvement
Change-Id: I1f3e04a631653feb5c2350662b6a041adccefa1f
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
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Add vapi_connect_from_vpp() and vapi_disconnect_from_vpp()
calls to allow API clients from within VPP process.
Add a new memclnt_create version that gives the user a
knob to enable or disable dead client scans (keepalive).
Type: feature
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: Id0b7bb89308db3a3aed2d3fcbedf4e1282dcd03f
Signed-off-by: Ole Troan <ot@cisco.com>
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Add missing parameter where required.
Type: fix
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
Change-Id: I8cd7c31848836e3233cb79d1dd21884167db4354
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Type: fix
Fixes: 26cd0242c95025e0d644db3a80dfe8dee83b6d7a
Change-Id: I9a88221af65f170dc6b1f0dc0992df401e489fa2
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
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The RFC7857 state machine introduced in 56c492a is a trade-off.
It tries to retain sessions as much as possible and also offers
some protection against spurious RST by re-establishing sessions if data
is received after the RST. From experience in the wild, this algorithm is
a little too liberal, as it leaves too many spurious established sessions
in the session table.
E.g. a oberserved pattern is:
client server
<- FIN, ACK
ACK ->
ACK ->
RST, ACK ->
With the current state machine this would leave the session in established state.
These proposed changes do:
- require 3-way handshake to establish session.
(current requires only to see SYNs from both sides)
- RST will move session to transitory without recovery if data is sent after
- Only a single FIN is needed to move to transitory
Fixes: 56c492aa0502751de2dd9d890096a82c5f04776d
Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: I92e593e00b2efe48d04997642d85bd59e0eaa2ea
Signed-off-by: Ole Troan <ot@cisco.com>
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