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path: root/src/plugins/wireguard/wireguard_if.c
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2023-03-02wireguard: add barrier to sync dataGabriel Oginski1-4/+4
The current implmentation of the hash table is not thread-safe. This design leads to a segfault when VPP is handling a lot of tunnels for Wireguard, where one thread modifies the hash table and other threads start the lookup at the same time. This fix adds a barrier sync to the hash table access when Wireguard adds or deletes an element. Type: fix Signed-off-by: Gabriel Oginski <gabrielx.oginski@intel.com> Change-Id: Id460dfcd46ace17c7bdcd23bd9687d26cecf0a39
2022-08-09wireguard: add handshake rate limiting supportAlexander Chernavin1-0/+6
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
2022-08-08wireguard: add dos mitigation supportAlexander Chernavin1-1/+3
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
2022-06-05wireguard: fix crash by not sending arp via wg interfaceAlexander Chernavin1-0/+8
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
2022-02-17wireguard: Fix wireguard device name to use user-instanceJon Loeliger1-1/+2
If the user supplies an instance number when creating a wireguard interface, it should be used in the device name. If no user-instance is given, the device instnce (tunnel number) is used. For example: vpp# wireguard create instance 17 listen-port 23023 src 1.2.3.4 private-key MDEwMjAzMDQwNTA2MDcwODA5MTAxMTEyMTMxNDE1MTY= wg17 Type: fix Fixes: edca1325cf296bd0f5ff422fc12de2ce7a7bad88 Signed-off-by: Jon Loeliger <jdl@netgate.com> Change-Id: Ibf51868bf7b4b9e8a3f85557d05667207873bc91
2021-11-19fib: Don't use [midchain] adjacencies to change an interface's feature arcNeale Ranns1-0/+3
Type: fix Using the adjacency to modify the interface's feature arc doesn't work, since there are potentially more than one adj per-interface. Instead have the interface, when it is created, register what the end node of the feature arc is. This end node is then also used as the interface's tx node (i.e. it is used as the adjacency's next-node). rename adj-midhcain-tx as 'tunnel-output', that's a bit more intuitive. There's also a fix in config string handling to: 1- prevent false sharing of strings when the end node of the arc is different. 2- call registered listeners when the end node is changed For IPSec the consequences are that one cannot provide per-adjacency behaviour using different end-nodes - this was previously done for the no-SA and an SA with no protection. These cases are no handled in the esp-encrypt node. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: If3a83d03a3000f28820d9a9cb4101d244803d084
2021-10-06wireguard: add ipv6 supportArtem Glazychev1-7/+22
Type: improvement Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Change-Id: If1a7e82ce163c4c4acaa5acf45ad2b88371396f6
2021-10-04wireguard: use the same udp-port for multi-tunnelArtem Glazychev1-14/+23
now we can reuse udp-port for many wireguard interfaces Type: improvement Change-Id: I14b5a9dbe917d83300ccb4d6907743d88355e5c5 Signed-off-by: Artem Glazychev <artem.glazychev@xored.com>
2021-09-30wireguard: move adjacency processing from wireguard_peer to wireguard_interfaceArtem Glazychev1-72/+6
now we should add routes manually Type: improvement Change-Id: I877511a18854efdfad02939267d38a216b2ccec3 Signed-off-by: Artem Glazychev <artem.glazychev@xored.com>
2020-12-14misc: move to new pool_foreach macrosDamjan Marion1-2/+2
Type: refactor Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-09-30wireguard: fix udp-port registrationArtem Glazychev1-0/+7
Type: fix Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Change-Id: I698ef299316004b797da1e74b64d067caac4bd2d
2020-09-29wireguard: fix license headersArtem Glazychev1-0/+15
Type: fix Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Change-Id: If5cc8894e0d1785dd04ab1e460e017580c9b41ce
2020-09-23wireguard: add handoff nodeArtem Glazychev1-34/+52
All timer and control plane functions happen from main thread Type: fix Change-Id: I4fc333c644485cd17e6f426493feef91688d9b24 Signed-off-by: Artem Glazychev <artem.glazychev@xored.com>
2020-09-14wireguard: coverity fixesNeale Ranns1-4/+8
Type: fix Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ib1eabbc87a573c660ac251602d631f167928259b
2020-09-12wireguard: Fix for tunnel encapNeale Ranns1-7/+15
Type: fix add UT for sneding handshale init and transport packets Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Iab1ed8864c666d5a0ae0b2364a9ca4de3c8770dc
2020-09-09wireguard: initial implementation of wireguard protocolArtem Glazychev1-0/+422
Type: feature The main information about plugin you can see in README.md vpp# wireguard ? wireguard create wireguard create listen-port <port> private-key <key> src <IP> [generate-key] wireguard delete wireguard delete <interface> wireguard peer add wireguard peer add <wg_int> public-key <pub_key_other>endpoint <ip4_dst> allowed-ip <prefix>dst-port [port_dst] persistent-keepalive [keepalive_interval] wireguard peer remove wireguard peer remove <index> Change-Id: I85eb0bfc033ccfb2045696398d8a108b1c64b8d9 Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Jim Thompson <jim@netgate.com> Signed-off-by: Neale Ranns <nranns@cisco.com> Signed-off-by: Damjan Marion <damarion@cisco.com>