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path: root/src/vnet/ipsec/esp_decrypt.c
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2019-08-01ipsec: Redo the anit-replay check post decryptNeale Ranns1-0/+29
Type: fix Change-Id: I1fa8c5326d6f22cfb8dd40e97d8a22d11a716922 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-24ipsec: GCM, Anti-replay and ESN fixessNeale Ranns1-11/+18
Type: fix Several Fixes: 1 - Anti-replay did not work with GCM becuase it overwrote the sequence number in the ESP header. To fix i added the seq num to the per-packet data so it is preserved 2 - The high sequence number was not byte swapped during ESP encrypt. 3 - openssl engine was the only one to return FAIL_DECRYPT for bad GCM the others return BAD_HMAC. removed the former 4 - improved tracing to show the low and high seq numbers 5 - documented the anti-replay window checks 6 - fixed scapy patch for ESN support for GCM 7 - tests for anti-reply (w/ and w/o ESN) for each crypto algo Change-Id: Id65d96b6d1d4dd821b2ab557e87468fff6d70e5b Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-06-18ipsec: ipsec-tun protectNeale Ranns1-18/+102
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>
2019-06-05ipsec: fix sa counters in esp-decryptDamjan Marion1-6/+7
Type: fix Fixes: b4fff3a Change-Id: I2552cbc0a02e7445825a5a4ce290cde3d10c5f0b Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-05-30IPsec: modify post-decrypt buf len calculationMatthew G Smith1-2/+2
For tunnel mode, after decryption the buffer length was being adjusted by adding (iv length + esp header size). Subtract it instead. Required for BFD to work on an IPsec tunnel interface. BFD verifies that the amount of received data is the expected size. It drops the packet if the buffer metadata says that the packet buffer contains more data than the packet headers say it should. Change-Id: I3146d5c3cbf1cceccc9989eefbc9a59e604e9975 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2019-05-14IPSEC: remove unecessary pass by reference of sequence numberNeale Ranns1-1/+1
Change-Id: Id406eb8c69a89c57305d8f138e8e6730037aa799 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-25crypto: AES GCM IV length is always 12Damjan Marion1-1/+0
... at least for use cases we are interested in Change-Id: I1156ff354635e8f990ce2664ebc8dcd3786ddca5 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-04-25ipsec: drop runts in esp-decryptDamjan Marion1-0/+8
Change-Id: Id7fcaf8590f9f2dcccdebea0ad31c7ecd1cbc8af Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-04-25crypto: improve key handlingDamjan Marion1-3/+2
Change-Id: If96f661d507305da4b96cac7b1a8f14ba90676ad Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-04-17IPSEC: Pass the algorithm salt (used in GCM) over the APINeale Ranns1-3/+1
Change-Id: Ia8cea13f7b937294e6a080a55fb2ceff30063acf Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-16IPSEC: support GCM in ESPNeale Ranns1-1/+34
Change-Id: Id2ddb77b4ec3dd543d6e638bc882923f2bac011d Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-15IPSEC: crypto overflowNeale Ranns1-1/+1
decrypting too many bytes. Change-Id: I4663e70271d9734eda7f9a127967b9224c0e5efc Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-11IPSEC: ESP with ESN tests and fixesNeale Ranns1-3/+3
Change-Id: Ie42b26e6d5cdb7b23f370ea2933c65079e8d1089 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-11IPSEC-MB: Use random & non-repeating IV (VPP-1642)Neale Ranns1-3/+1
hard code IV and key lengths based on cipher. Init IV from random data, use AES instruction to rotate. Change-Id: I13a6507d12267b823c528660a903787baeba47a0 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-10crypto: Intel IPSEC-MB engineNeale Ranns1-2/+11
A plugin to use Intel IPSec MB library as a VPP crypto engine This changes uses concepts from: https://gerrit.fd.io/r/#/c/17301/ hence that author's work is acknowledge below Change-Id: I2bf3beeb10f3c9706fa5efbdc9bc023e310f5a92 Signed-off-by: Neale Ranns <nranns@cisco.com> Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-04-07crypto: add support for AEAD and AES-GCMDamjan Marion1-6/+5
Change-Id: Iff6f81a49b9cff5522fbb4914d47472423eac5db Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-04-04ipsec: trunc_size -> icv_sizeDamjan Marion1-1/+1
Change-Id: Idb661261c2191adda963a7815822fd7a27a9e7a0 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-29IPSEC-GRE: fixes and API update to common types.Neale Ranns1-1/+1
Change-Id: Icdcbac7453baa837a9c0c4a2401dff4a6aa6cba0 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-29ipsec: esp-decrypt reworkDamjan Marion1-199/+297
Change-Id: Icf83c876d0880d1872b84e0a3d34be654b76149f Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-28crypto: add vnet_crypto_op_init (...)Damjan Marion1-2/+1
Change-Id: I2018d8367bb010e1ab30d9c7c23d9501fc38a2e5 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-28ipsec: anti-replay code cleanupDamjan Marion1-28/+10
Change-Id: Ib73352d6be26d639a7f9d47ca0570a1248bff04a Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-27ipsec: compress ipsec_sa_t so data used by dataplane code fits in cachelineDamjan Marion1-6/+7
Change-Id: I81ecdf9fdcfcb017117b47dc031f93208e004d7c Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-20ipsec: keep crypto data inside SADamjan Marion1-16/+8
Change-Id: Ie8986bd3652d25c4befe681cea77df95aba37ebc Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-19crypto: introduce crypto infraDamjan Marion1-32/+20
Change-Id: Ibf320b3e7b054b686f3af9a55afd5d5bda9b1048 Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2019-03-06ipsec: esp-encrypt and esp-decrypt cleanupDamjan Marion1-248/+207
Change-Id: I1e431aa36a282ca7565c6618a940d591674b8cd2 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-05ipsec: cleanup, remove unnecessary code,Kingwel Xie1-1/+1
ipsec_proto_main moved to ipsec.c fix missing '\0' of backend name Change-Id: I90760b3045973a46792c2f098d9b0b1b3d209ad0 Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
2019-02-22IPSEC: header exportsNeale Ranns1-0/+1
Change-Id: I7d48a4e236c6e7b11b0c9750a30fb68e829d64a5 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-02-18IPSEC: move SA counters into the stats segmentNeale Ranns1-1/+3
1) stats are accessed via the stat segment which is more condusive to monitoring 2) stats are accurate in the presence of multiple threads. There's no guarantee that an SA is access from only one worker. Change-Id: Id5e217ea253ddfc9480aaedb0d008dea031b1148 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-02-07IPSEC: no second lookup after tunnel encapNeale Ranns1-3/+4
in the same maaner as with other tunnel tyeps we use the FIB to cache and track the destination used to reach the tunnel endpoint. Post encap we can then ship the packet straight to this adjacency and thus elide the costly second lookup. - SA add and del function so they can be used both directly from the API and for tunnels. - API change for the SA dump to use the SA type - ipsec_key_t type for convenience (copying, [un]formating) - no matching tunnel counters in ipsec-if-input Change-Id: I9d144a59667f7bf96442f4ca66bef5c1d3c7f1ea Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-12-07Fix VPP-1515 IPSec receive packet error in transport mode with udp encapjackiechen19851-3/+13
Change-Id: Ife66395b89e1e9f9206666e5f0fd441b3c241bb2 Signed-off-by: jackiechen1985 <xiaobo.chen@tieto.com>
2018-12-04ipsec: simplify bumping counters - cosmetic changeKlement Sekera1-44/+13
Change-Id: Ibb55427ed49d0277854a352922c6c4bb007bf072 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-11-30IPSEC-AH: fix packet dropNeale Ranns1-2/+0
Change-Id: I45b97cfd0c3785bfbf6d142d362bd3d4d56bae00 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-29migrate ipsec to new multiarch infraKlement Sekera1-11/+6
Change-Id: Ibef46e068cd72415af28920b0146adf48105bf68 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-1/+1
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-22ipsec: split ipsec nodes into ip4/ip6 nodesKlement Sekera1-50/+98
Change-Id: Ic6b27659f1fe9e8df39e80a0441305e4e952195a Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-05-10Change the way IP header pointer is calculated in esp_decrypt nodesSzymon Sliwa1-3/+7
The pointer to IP header was derived from l3_hdr_offset, which would be ok, if l3_hdr_offset was valid. But it does not have to be, so it was a bad solution. Now the previous nodes mark whether it is a IPv6 or IPv4 packet tyle, and in esp_decrypt we count get ip header pointer by substracting the size of the ip header from the pointer to esp header (which lies in front of the ip header). Change-Id: I6d425b90931053711e8ce9126811b77ae6002a16 Signed-off-by: Szymon Sliwa <szs@semihalf.com>
2018-04-18Fix the ip header offset counting in vnet/ipsecSzymon Sliwa1-5/+4
IP header is set as data + sizeof(ethernet_header_t), what does not need to be true. The solution is to use l3_hdr_offset. Change-Id: I5d9f41599ba8d8eb14ce2d9d523f82ea6e0fd10d Signed-off-by: Szymon Sliwa <szs@semihalf.com>
2017-11-29DES-CBC/3DES-CBC support for VPP IPSec Core“mukeshyadav1984”1-12/+16
Change-Id: I876f215b129e5e59d3acc6447ce40458cc341eba Signed-off-by: “mukeshyadav1984” <mukyadav@cisco.com>
2017-11-28IPSec AH protocol enhancement in VPP native core“mukeshyadav1984”1-5/+6
Change-Id: Iec5804d768485f4015bbf732d8d19ef2f24e6939 Signed-off-by: “mukeshyadav1984” <mukyadav@cisco.com>
2017-11-10Allow Openssl 1.1.0Marco Varlese1-0/+4
This patch addresses all the code changes required to VPP to support openssl 1.1.0 API. All the changes have been done so that VPP can still be built against current openssl API whilst forward-looking to version 1.1.0. Change-Id: I65e22c53c5decde7a15c7eb78a62951ee246b8dc Signed-off-by: Marco Varlese <marco.varlese@suse.com>
2017-09-19Set RX sw_if_index on decrypted routed IPsec buffersMatthew Smith1-0/+2
For routed IPsec, set the RX sw_if_index on inbound packets to the index of the IPsec interface. When a packet is decrypted into a new buffer, bring along the RX sw_if_index of the encrypted packet to the new buffer. Change-Id: I093e9d37def2082c8d2f1deb96b1c5b97126e023 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2017-04-06Use thread local storage for thread indexDamjan Marion1-6/+7
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-02-17Implemented IKEv2 initiator features:Radu Nicolau1-0/+2
- IKE_SA_INIT and IKE_AUTH initial exchanges - Delete IKA SA - Rekey and delete Child SA - Child SAs lifetime policy To set up one VPP instance as the initiator use the following CLI commands (or API equivalents): ikev2 profile set <id> responder <interface> <addr> ikev2 profile set <id> ike-crypto-alg <crypto alg> <key size> ike-integ-alg <integ alg> ike-dh <dh type> ikev2 profile set <id> esp-crypto-alg <crypto alg> <key size> esp-integ-alg <integ alg> esp-dh <dh type> ikev2 profile set <id> sa-lifetime <seconds> <jitter> <handover> <max bytes> and finally ikev2 initiate sa-init <profile id> to initiate the IKE_SA_INIT exchange Child SA re-keying process: 1. Child SA expires 2. A new Child SA is created using the Child SA rekey exchange 3. For a set time both SAs are alive 4. After the set time interval expires old SA is deleted Any additional settings will not be carried over (i.e. settings of the ipsec<x> interface associated with the Child SA) CLI API additions: ikev2 profile set <id> responder <interface> <addr> ikev2 profile set <id> ike-crypto-alg <crypto alg> <key size> ike-integ-alg <integ alg> ike-dh <dh type> ikev2 profile set <id> esp-crypto-alg <crypto alg> <key size> esp-integ-alg <integ alg> esp-dh <dh type> ikev2 profile set <id> sa-lifetime <seconds> <jitter> <handover> <max bytes> ikev2 initiate sa-init <profile id> ikev2 initiate del-child-sa <child sa ispi> ikev2 initiate del-sa <sa ispi> ikev2 initiate rekey-child-sa <profile id> <child sa ispi> Sample configurations: Responder: ikev2 profile add pr1 ikev2 profile set pr1 auth shared-key-mic string Vpp123 ikev2 profile set pr1 id local fqdn vpp.home.responder ikev2 profile set pr1 id remote fqdn vpp.home.initiator ikev2 profile set pr1 traffic-selector remote ip-range 192.168.125.0 - 192.168.125.255 port-range 0 - 65535 protocol 0 ikev2 profile set pr1 traffic-selector local ip-range 192.168.124.0 - 192.168.124.255 port-range 0 - 65535 protocol 0 Initiator: ikev2 profile add pr1 ikev2 profile set pr1 auth shared-key-mic string Vpp123 ikev2 profile set pr1 id local fqdn vpp.home.initiator ikev2 profile set pr1 id remote fqdn vpp.home.responder ikev2 profile set pr1 traffic-selector local ip-range 192.168.125.0 - 192.168.125.255 port-range 0 - 65535 protocol 0 ikev2 profile set pr1 traffic-selector remote ip-range 192.168.124.0 - 192.168.124.255 port-range 0 - 65535 protocol 0 ikev2 profile set pr1 responder TenGigabitEthernet3/0/1 192.168.40.20 ikev2 profile set pr1 ike-crypto-alg aes-cbc 192 ike-integ-alg sha1-96 ike-dh modp-2048 ikev2 profile set pr1 esp-crypto-alg aes-cbc 192 esp-integ-alg sha1-96 esp-dh ecp-256 ikev2 profile set pr1 sa-lifetime 3600 10 5 0 Change-Id: I1db9084dc787129ea61298223fb7585a6f7eaf9e Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+430
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>