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2022-08-12http_static: validate session before sendingFlorin Coras1-0/+2
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I18b9d0d67f5fe4c1714427259df29026153d8dd1
2022-08-11linux-cp: FIB lookup for P2MP tunnel interfacesMatthew Smith1-4/+22
Type: improvement If a tun/L3 interface is paired with a multipoint tunnel interface, pass packets arriving from the host to ip[46]-lookup instead of cross-connecting them to the tunnel interface. Adjacencies are used to drive the rewrite for Multipoint tunnel interfaces, so the generic adjacency used with a P2P tunnel will not work correctly. Change-Id: I2d8be56dc5029760978c05bc4953f84c8924a412 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2022-08-10ikev2: do not accept rekey until old SA is deletedAtzm Watanabe2-14/+36
Type: fix Signed-off-by: Atzm Watanabe <atzmism@gmail.com> Change-Id: I11b6107492004a45104857dc2dae01b9a5a01e3b
2022-08-09wireguard: add peers roaming supportAlexander Chernavin7-49/+187
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
2022-08-09wireguard: add handshake rate limiting supportAlexander Chernavin6-7/+178
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
2022-08-09ip-neighbor: ARP and ND stats per-interface.Neale Ranns1-2/+6
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
2022-08-08wireguard: add dos mitigation supportAlexander Chernavin10-64/+224
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
2022-08-08ikev2: fix rekeying with multiple notify payloadsAtzm Watanabe1-5/+8
Type: fix Signed-off-by: Atzm Watanabe <atzmism@gmail.com> Change-Id: I065bd5c26055d863d786023970e7deeed261b31c
2022-08-04dpdk: enable interrupt support for vmxnet3Benoît Ganne1-0/+1
Type: feature Change-Id: I0abbe925d6b9d3dd7196cd8beaf4f471beb45bd6 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2022-08-04arping: validate am->interfaces before check addressGaoChX1-1/+2
May cause pointers point to unexpected non-zero addresses if not validate vec Type: fix Change-Id: Ie4d3343d6734125b98e0dc962e33e0c7514da829 Signed-off-by: GaoChX <chiso.gao@gmail.com>
2022-08-03wireguard: add processing of received cookie messagesAlexander Chernavin11-81/+308
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
2022-07-21linux-cp: fix endianess for autoendian methodsStanislav Zaikin1-9/+9
If an API methos is specified as "autoendian" it should use macros with _END at the end. Type: fix Change-Id: I73b7b4f6996b30631c4355ace156ed0665c4b8ad Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com>
2022-07-19linux-cp: change namespace to netnsStanislav Zaikin2-33/+28
namespace is a keyword for c++ compilers Type: fix Change-Id: Ia8fc9ef1cc15fe9d0e40b3f543f9e8f411203b89 Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com>
2022-07-19linux-cp: API downgrade due to namespace keywordMatthew Smith1-0/+5
Type: fix A user had trouble compiling C++ code to work with the linux-cp APIs because some messages contain a field called namespace, which is a reserved word for C++. We wish to rename those fields so the messages which are affected are being set to in_progress. Change-Id: I3bd1dc898c146a9980161a562b2b453313bb58fd Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2022-07-18dpdk: fix mlx5 dpdk init with no-multi-segTianyu Li1-1/+2
Build vpp with MLX DPDK PMD, make DPDK_MLX4_PMD=y DPDK_MLX5_PMD=y DPDK_MLX5_COMMON_PMD=y build-release With no-multi-seg in startup.conf, Mellanox NIC init failed with following message, rte_eth_rx_queue_setup[port:2, errno:-12]: Unknown error -12 mlx5_net: port 2 Rx queue 0: Scatter offload is not configured and no enough mbuf space(2176) to contain the maximum RX packet length(2065) with head-room(128) In Mellanox NIC PMD driver, 'di.max_rx_pktlen' is returned as 65536, and 'di.max_mtu' is returned as 65535, which makes the driver_frame_overhead logic not suitable for Mellanox NICs. So skip the logic code if MAX_MTU is returned as 65535. Type: fix Fixes: 1cd0e5dd533f ("vnet: distinguish between max_frame_size and MTU") Signed-off-by: Tianyu Li <tianyu.li@arm.com> Change-Id: I027b76b8d07fb453015b8eebb36d160b4bc8df9c
2022-07-12quic: fix coverity warningFlorin Coras1-1/+2
Type: fix Fixes: 5b4b4c0 Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: If4bd8f30cd23d862109cab665251ad89804b1734
2022-07-12perfmon: add Arm event bundlesZachary Leaf9-0/+874
Included statistic bundles (all NODE type): - Instructions and CPU cycles, including IPC - Data cache access/refills/% - Data TLB cache access/refills/% - Instruction cache access/refills/% - Instruction TLB cache access/refills/% - Memory/Bus accesses, memory errors - Branch (mis)predictions, architecturally & speculatively executed - Processor frontend/backend stalls (stalled cycles) Type: feature Signed-off-by: Zachary Leaf <zachary.leaf@arm.com> Tested-by: Jieqiang Wang <jieqiang.wang@arm.com> Change-Id: I7ea4a27c8df8fc7222b743a98bdceaff727e4112
2022-07-12perfmon: enable perfmon plugin for ArmZachary Leaf11-35/+654
This patch enables statistics from the Arm PMUv3 through the perfmon plugin. In comparison to using the Linux "perf" tool, it allows obtaining direct, per node level statistics (rather than per thread). By accessing the PMU counter registers directly from userspace, we can avoid the overhead of using a read() system call and get more accurate and fine grained statistics about the running of individual nodes. A demo of perfmon on Arm can be found at: https://asciinema.org/a/egVNN1OF7JEKHYmfl5bpDYxfF *Important Note* Perfmon on Arm is dependent on and works only on Linux kernel versions of v5.17+ as this is when userspace access to Arm perf counters was included. On most Arm systems, a maximum of 7 PMU events can be configured at once - (6x PMU events + 1x CPU_CYCLE counter). If some perf counters are in use elsewhere by other applications, and there are insufficient counters remaining to open the bundle, the perf_event_open call will fail (provided the events are grouped with the group_fd param, which perfmon currently utilises). See arm/events.h for a list of PMUv3 events available, although it is implementation defined whether most events are implemented or not. Only a small set of 7 events is required to be implemented in Armv8.0, with some additional events required in later versions. As such, depending on the implementation, some statistics may not be available. See Arm Architecture Reference Manual for Armv8-A, D7.10.2 "The PMU event number space and common events" for more information. arm/events.c:arm_init() gets information from the sysfs about what events are implemented on a particular CPU at runtime. Arm's implementation of the perfmon source callback .bundle_support uses this information to disable unsupported events in a bundle, or in the case no events are supported, disable the entire bundle. Where a particular event in a bundle is not implemented, the statistic for that event is shown as '-' in the 'show perfmon statistics' cli output, by disabling the column. There is additional code in perfmon.c to only open events which are marked as implemented. Since we're only opening and reading events that are implemented, some extra logic is required in cli.c to re-align either perfmon_node_stats_t or perfmon_reading_t with the column headings configured in each bundle, taking into account disabled columns. Userspace access to perf counters is disabled by default, and needs to be enabled with 'sudo sysctl kernel/perf_user_access=1'. There is a check built into the Arm event source init function (arm/events.c:arm_init) to check that userspace reading of perf counters is enabled in the /proc/sys/kernel/perf_user_access file. If the above file does not exist, it means the kernel version is unsupported. Users without a supported kernel will see a warning message, and no Arm bundles will be registered to use in perfmon. Enabling/using plugin: - include the following in startup.conf: - plugins { plugin perfmon_plugin.so { enable } - 'show perfmon bundle [verbose]' - show available statistics bundles - 'perfmon start bundle <bundle-name>' - enable and start logging - 'perfmon stop' - stop logging - 'show perfmon statistics' - show output For a general guide on using and understanding Arm PMUv3 events, see https://community.arm.com/arm-community-blogs/b/tools-software-ides-blog/posts/arm-neoverse-n1-performance-analysis-methodology Type: feature Signed-off-by: Zachary Leaf <zachary.leaf@arm.com> Tested-by: Jieqiang Wang <jieqiang.wang@arm.com> Change-Id: I0620fe5b1bbe78842dfb1d0b6a060bb99e777651
2022-07-12perfmon: make less arch dependentZachary Leaf8-101/+161
In preparation for enabling perfmon on Arm platforms, move some Intel /arch specific logic into the /intel directory and update the CMake to split the common code from arch specific files. Since the dispatch_wrapper code is very different on Arm/Intel, each arch can provide their own implementation + conduct any additional arch specific config e.g. on Intel, all indexes from the mmap pages are cached. The new method intel_config_dispatch_wrapper conducts this config and returns a pointer to the dispatch wrapper to use. Similarly, is_bundle_supported() looks very different on Arm/Intel, so each implementation is to provide their own arch specific checks. Two new callbacks/function ptrs are added in PERFMON_REGISTER_SOURCE to support this - .bundle_support and .config_dispatch_wrapper. Type: refactor Signed-off-by: Zachary Leaf <zachary.leaf@arm.com> Change-Id: Idd121ddcfd1cc80a57c949cecd64eb2db0ac8be3
2022-07-11wireguard: fix coverity warningsArtem Glazychev1-8/+8
Type: fix Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Change-Id: I62f13ee8cb9b86f8106505fd32a03d66c1a73bce
2022-07-08dpdk: add ID for 4xxx QAT VFMatthew Smith1-3/+5
Type: improvement Enable use of 4th gen QAT devices. Will be available on Sapphire Rapids. Signed-off-by: Matthew Smith <mgsmith@netgate.com> Change-Id: I89e7d29e10ecb4c36c700ff5e017796161ec6c5e
2022-07-06misc: pass NULL instead of 0 for pointer in variadic functionsAndreas Schultz1-1/+1
0 is not NULL (at least not in all cases), passing 0 into a variadic function in a place where the consumer reads it as pointer might leave parts of the pointer uninitilized and hence filled with random data. It seems that this used to work with gcc, but clang seems to treat the 0 in those places as a 32bit integer. Type: fix Signed-off-by: Ivan Shvedunov <ivan4th@gmail.com> Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com> Change-Id: I37d975eef5a1ad98fbfb65ebe47d73458aafea00
2022-06-30vrrp: while delete vr can't delete multi virtual address.GaoChX1-1/+4
Here is bug example: vpp# create loopback interface loop0 vpp# vrrp vr add loop0 vr_id 1 priority 100 192.168.1.1 192.168.1.2 vpp# vrrp vr del loop0 vr_id 1 vpp# vrrp vr add loop0 vr_id 1 priority 100 192.168.1.1 192.168.1.2 vrrp vr add: vrrp_vr_add_del returned -105 Type: fix Signed-off-by: GaoChX <chiso.gao@gmail.com> Change-Id: I3e0d086ac8fb52756339cff19b9a83911ec9748b
2022-06-29hsa: reduce number of preallocated vcl test server sessionsFlorin Coras2-1/+2
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I7afc6116ca9a609992f26d9e78084732bba1b2ea
2022-06-29tests: add ipsec flow performance unit testPiotr Bronowski1-0/+309
This patch adds performacne and functional tests for ip4 outbound traffic policy matching. Test setup is configurable in startup.conf and though the test parameters. Cache, fast path, fast path burst mode can be enabled and disabled, and performance for different lookup setup can be measured. Type: feature Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com> Change-Id: I1d04d196e412f47f43b7e5cbd46607bf6a9cc40e
2022-06-17quic:fix crash rx_fifo full or growfanxb1-0/+16
if when the rx_fifo grows, svm_fifo_enqueue() return -4, stream_data->app_rx_data_len += rlen type conversion occurs, Finally,stream->recvstate.data_off calculation is wrong. Type:fix Signed-off-by: fanxb <fxb_mail@163.com> Change-Id: Iae11f0c453f32d836f4148d70e3b121545a53a90
2022-06-10hsa: allow first segments larger than 4g for proxyFlorin Coras2-14/+5
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I9c502a491ff56806a2e631f7a4c18903a2e93ab2
2022-06-08wireguard: increment interface RX countersMatthew Smith1-0/+15
Type: improvement When packets were received and processed successfully, increment the byte/packet counters for the tunnel interface. Change-Id: I42855607ac6916de641be42aac86c9942cc97140 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2022-06-05wireguard: fix crash by not sending arp via wg interfaceAlexander Chernavin2-1/+9
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
2022-06-03hsa: dealloc proxy fifos on right threadFlorin Coras2-1/+46
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ia66c12e1da126d0d8d101b645e6dc8454c3826d6
2022-06-03hsa: refactor proxy session lookup and cleanupFlorin Coras2-103/+52
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ic68627bbca676cc78b0be05bc1fa0f386f5d27fa
2022-05-31nat: disable nat44-ei-in2out-output ttl checkAlexander Skorichenko1-3/+3
Type: fix A packet passing through nat44-ei-in2out-output, has its ttl value validated in earlier nodes. "ip4-input" node checks ttl for locally generated packets. "ip4-rewrite" node validates ttl in forwarded packets. Thus for example, the ED counterpart disables ttl checks in its "nat44-ed-in2out-output" node. This patch updates nat44 EI conditions for ttl checks to those currently used in nat44 ED case, meaning no extra ttl validation for in2out when output-feature is enabled. Signed-off-by: Alexander Skorichenko <askorichenko@netgate.com> Change-Id: Idd15d7c9a746b60c0a6dac5537d00ef10c257fdc
2022-05-23dpdk: fix update link stateAlexander Skorichenko1-18/+13
Type: fix Correct vnet_hw_interface_t flags update on link state changes. Currently incomplete set of flags is applied on each change, only flags related to the most recent change are being set correct. E.g. setting the link up would erase the duplex part of the flags. Signed-off-by: Alexander Skorichenko <askorichenko@netgate.com> Change-Id: I5b95e1c0eaea0c283b108dbf7f809682ec9064eb
2022-05-23linux-cp: fix display of link_speedAnton Nikolaev1-1/+2
Type: fix Don't set link speed for tap interface when link speed is unknown Signed-off-by: Anton Nikolaev <anikolaev@netgate.com> Change-Id: Ia97277b3bf7c958fa665e4ead8d0e48f02921e69
2022-05-19api: refactor api data storageDamjan Marion6-7/+8
single struct to hold all api handler, flags, etc. Provide functions to toggle flags instead of writing directly to internal data. Type: refactor Change-Id: I4730d7290e57489de8eda34a72211527e015b721 Signed-off-by: Damjan Marion <damarion@cisco.com>
2022-05-19ikev2: fix tunnel directionStanislav Zaikin1-4/+4
Type: fix Change-Id: I480b1fcace1c27a5cb2d2956cec80b379105b55d Signed-off-by: Stanislav Zaikin <zstaseg@gmail.com>
2022-05-17interface: fix overflow of link speed.Anton Nikolaev3-7/+12
Type: fix There were several places where mbps were converted to kbps for link_speed, but often drivers of devices set link speed to unknown (0xFFFFFFFF) on initialization, so there was multiplication of link_speed equal 0xFFFFFFFF(UINT32_MAX) by 1000, this provides overflow of unsigned int, and as result link_speed was equal 4295 Gbps, but actually link_speed is unknown. Signed-off-by: Anton Nikolaev <anikolaev@netgate.com> Change-Id: Ib462ed6ed685654af4687041e115bfb74e640f13
2022-05-16acl: memory leak in acl_fa_session_cleaner_processSteven Luong1-0/+1
The statement pw0->pending_clear_sw_if_index_bitmap = clib_bitmap_dup (pw0->serviced_sw_if_index_bitmap); will cause pw0->pending_clear_sw_if_index_bitmap's previous vector to be gone. Need to free it prior to calling clib_bitmap_dup() Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I20de780e73daea7be17efa0bf660af2592cd4680
2022-05-16flowprobe: add api messages to obtain current stateAlexander Chernavin3-6/+383
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>
2022-05-16vlib: exec cli line-by-line processing and script updatesDamjan Marion4-78/+78
Type: improvement Change-Id: I82e7c0acc547794bcc7c42f4b8881a8251bf7a9b Signed-off-by: Damjan Marion <damarion@cisco.com>
2022-05-13dpdk: fix overflow in mtu arithmeticMohammed Hawari2-2/+2
When the driver's max_rx_pktlen is >= 65536, max_supported_frame_size overflows and queue creation fails. Change-Id: If78707cb698adf8619ec44a852dd05d570917577 Signed-off-by: Mohammed Hawari <mohammed@hawari.fr> Type: fix
2022-05-13flowprobe: add support for reporting on inbound packetsAlexander Chernavin7-91/+441
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>
2022-05-12pnat: add support to wildcard IP Protocol field if not specifiedFahad Naeem4-4/+39
- 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
2022-05-11dpdk: clear the RTE_MEMPOOL_F_NON_IOMohammed Hawari1-0/+3
This mempool flag should be cleared when the mempool is populated, to reproduce the behaviour of rte_mempool_populate_iova in DPDK 22.03 Change-Id: I4c0e07efca9df2e472e8e393689127c01cf66da2 Signed-off-by: Mohammed Hawari <mohammed@hawari.fr> Type: fix Fixes: 2f132efc3cafde5a0dd01ef8a91606528970cdf7
2022-05-10tests: replace pycodestyle with blackKlement Sekera18-709/+1061
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>
2022-05-10nat: improve icmp type detection performanceKlement Sekera1-12/+10
Replace code with branchless code. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ic38a20ad33483c1c26f90a927f8b963b0ead4a87
2022-05-05rdma: two small improvements for rdma interfaceJieqiang Wang2-5/+5
- fix branch prediction for checking rdma ERROR flag - add the missing right angle bracket to help message Type: improvement Signed-off-by: Jieqiang Wang <jieqiang.wang@arm.com> Reviewed-by: Lijian Zhang <lijian.zhang@arm.com> Reviewed-by: Tianyu Li <tianyu.li@arm.com> Change-Id: I2ce667631b3e3f60939069e2a16ddba0ff12a695
2022-05-02vapi: support api clients within vpp processOle Troan2-1/+104
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>
2022-05-02dhcp: fix dhcp_compl_eventJing Peng1-3/+5
This patch fixes two problems: 1. The lease field in the dhcp_compl_event message can include a list of vl_api_domain_server_t structs, but no memory is allocated for it. 2. The DNS server address is not copied properly, resulting in wrong IP4 addresses in the event message. Type: fix Signed-off-by: Jing Peng <pj.hades@gmail.com> Change-Id: I42c533e7af697568c69714011d983f88368a7e15
2022-04-28wireguard: Document wireguard async mode defaultJon Loeliger1-2/+2
Type: improvement Signed-off-by: Jon Loeliger <jdl@netgate.com> Change-Id: I446eb86c097d1bf99f05ee47f1c550689d70ced2