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path: root/src/vnet/ipsec/ipsec_tun_in.c
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2023-07-31ipsec: fix IPv6 IPsec tunnel puntingSylvain Cadilhac1-0/+1
Type: fix Buffer needs to be rewinded before being passed to punt-dispatch node. Change-Id: I43d103515d372e425f4c3b08ca1779398f1fced4 Signed-off-by: Sylvain Cadilhac <sylvain.cadilhac@freepro.com>
2022-08-31ipsec: fix coverity 249212Andrew Yourtchenko1-2/+2
zero-initialize the variables Type: fix Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> Change-Id: I51c3856865eab037f646a0d184e82ecb3b5b3216
2022-08-19ipsec: enable UDP encap for IPv6 ESP tun protectMatthew Smith1-7/+44
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
2022-08-11ipsec: Use .api declared error countersNeale Ranns1-40/+16
Type: improvement Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ica7de5a493389c6f53b7cf04e06939473a63d2b9
2022-02-17ipsec: Improve the handling of NAT-T keepalive messagesNeale Ranns1-8/+21
Type: improvement Ethernet frames on the wire are a minimum of 64 bytes, so use the length in the UDP header to determine if the ESP payload is one bytes of the special SPI, rather than the buffer's size (which will include the ethernet header's padding). In the case of drop advance the packet back to the IP header so the ipx-drop node sees a sane packet. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ic3b75487919f0c77507d6f725bd11202bc5afee8
2021-02-25ipsec: enable input features on tunnelsBrian Russell1-18/+25
Make the ipsec[46]-tun-input nodes siblings of device-input so that input features can be enabled on them. Register ipsec-tun for feature updates. When a feature is enabled on the device-input arc and the ifindex is an IPSec tunnel, change the end node of the arc for that ifindex to be the appropriate ESP decrypt node. Set a flag on the tunnel to indicate that the feature arc should be started for packets input on the tunnel. Test input policing on ESP IPSec tunnels. Type: improvement Signed-off-by: Brian Russell <brian@graphiant.com> Change-Id: I3b9f047e5e737f3ea4c58fc82cd3c15700b6f9f7
2020-10-21ipsec: Add to the SA info directly in the bihashNeale Ranns1-23/+21
Type: improvement this save the cache miss on the protect structure. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I867d5e49df5edfd6b368f17a34747f32840080e4
2020-10-05ipsec: Use bihash for tunnel lookupNeale Ranns1-29/+37
Type: improvement Change-Id: I0c82722dfce990345fe6eeecdb335678543367e0 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-03-23ipsec: increment no-tunnel counter in ipsec-tun-inputAlexander Chernavin1-0/+3
If "no-tunnel" error erises, you will not see it in the "show errors" output because the packet will be punted. That fact complicates troubleshooting. Type: improvement Change-Id: Ic08347f81131a4a73a05b66acbfb02797373f5ab Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2020-02-21ipsec: IPSec protection for multi-point tunnel interfacesNeale Ranns1-1/+1
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Iaba2ab11bfaa1c8db4023434e3043ac39500f938
2020-01-22ipsec: re-enable DPDK IPSec for tunnel decap/encap (VPP-1823)Neale Ranns1-9/+4
Type: fix Change-Id: Iff9b1960b122f7d326efc37770b4ae3e81eb3122 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-01-04ipsec: Targeted unit testingNeale Ranns1-52/+0
Type: fix 1 - big packets; chained buffers and those without enoguh space to add ESP header 2 - IPv6 extension headers in packets that are encrypted/decrypted 3 - Interface protection with SAs that have null algorithms Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ie330861fb06a9b248d9dcd5c730e21326ac8e973
2019-11-08ipsec: remove dedicated IPSec tunnelsNeale Ranns1-7/+8
APIs for dedicated IPSec tunnels will remain in this release and are used to programme the IPIP tunnel protect. APIs will be removed in a future release. see: https://wiki.fd.io/view/VPP/IPSec Type: feature Change-Id: I0f01f597946fdd15dfa5cae3643104d5a9c83089 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-10-31ipsec: fix esp trace seq number overflowBenoît Ganne1-1/+3
Do not copy invalid seq number if packet is too small. Type: fix Change-Id: I1e78f5920e9645521f57efccaf35bbf9ce0676a8 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-07-16ipsec: handle UDP keepalivesNeale Ranns1-6/+39
Type: feature Change-Id: I87cc1168466f267e8c4bbec318401982f4bdf03a Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-12ip ipsec: Remove IPSec SPI-0 punt reasonNeale Ranns1-11/+4
Type: fix There's no call for an SPI-0 punt reason with UDP encap, since it's only with UDP encap that the ambiguity between IKE or IPSEC occurs (and SPI=0 determines IKE). Enhance the punt API to dum ponly the reason requested, so a client can use this as a get-ID API Change-Id: I5c6d72b03885e88c489117677e72f1ef5da90dfc Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-06-18ipsec: ipsec-tun protectNeale Ranns1-0/+436
please consult the new tunnel proposal at: https://wiki.fd.io/view/VPP/IPSec Type: feature Change-Id: I52857fc92ae068b85f59be08bdbea1bd5932e291 Signed-off-by: Neale Ranns <nranns@cisco.com>