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2022-12-16bfd: fix bfd udp error enum incompatibilityDmitry Valter1-0/+8
New BFD UDP errors were no longer compatible with BFD errors. This was causing out-of-bound reads and ASAN test crashes. Fix this issue by statically checking if these enums are compatible. Type: fix Signed-off-by: Dmitry Valter <d-valter@yandex-team.ru> Change-Id: I92fddd26270f946bc16ade840c94e5496e2cb88a
2022-09-23bfd: add tracing support to bfd-processKlement Sekera1-51/+27
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>
2022-08-10bfd: Express node stats using the .api fileNeale Ranns1-59/+19
Type: improvement This method allows the assignment of a severity to the error. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Id1a414a88018390d03bd6b16bd048a98903bab5a
2022-08-10bfd: More descriptive error codes during packet receive handlingNeale Ranns1-39/+46
Type: improvement Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I8907fecde6d48f5362f0f91372d5a9a1bba6f931
2022-03-24bfd: use local error index when incrementing node countersPaul Atkins1-4/+4
When incrementing node counters with vlib_node_increment_counter the local error index should be passed in. vlib_node_increment_counter adds the local index to the nodes base index to get the counter to write to. If we pass in the global counter index, the offset gets added again in the fn, and we then potentially write into memory that is not part of the counter vector. Type: fix Signed-off-by: Paul Atkins <patkins@graphiant.com> Change-Id: I43be33a51bcb52d520495d326b971c1d848d96b5
2022-03-18bfd: remove source IP check from session addKlement Sekera1-55/+0
Checking for existence of source address on interface prevents creating session before assigning address to said interface. Removing this check allows more flexibility when configuring BFD feature. Type: improvement Signed-off-by: Klement Sekera <klement.sekera@gmail.com> Change-Id: Ia57960e29b5dbdb758a7a64193c28f21482f229e
2022-03-09stats: refactorDamjan Marion1-9/+8
Type: refactor Change-Id: Ifd533a095d979dc55bfbe5fac7e0b7510a4d900c Signed-off-by: Damjan Marion <damarion@cisco.com>
2022-02-16fib: Use the same adjacency that BFD is usingNeale Ranns1-0/+2
Type: improvement When the adj subsystem is notified of a BFD session, it attempts to find the appropriate adjacency from the session's key. This could lead to a mismatch between the adj used by BFD and that of FIB. The BFD session stores the adj it is using, so FIB uses that instead. Since adj is now using the same adj as BFD, it does not need to maintain its own locks. In BFD it is necessary to initialise the adj index used in INVALID and ensure it is not unlock before listeners are notified of the session delete. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I9630867b10bb18969475299a0c754942a8df0f44
2022-02-16bfd: On a point to point link use the all zeros address for the peer.Neale Ranns1-8/+12
Type: fix The adjacency used is then the same one as that used by routes in the FIB and so the BFD protection/fast-failover works for thise route, since they are children of the BFD protected adjacency. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I72e10b3074697cba8a002a4c1acf690983985157
2022-02-14bfd: add per session countersKlement Sekera1-7/+79
Add udp total session counts - as stat segment entries: /bfd/udp4/sessions /bfd/udp6/sessions and per session packet/byte counters: /bfd/rx-session-counters /bfd/rx-session-echo-counters /bfd/tx-session-counters /bfd/tx-session-echo-counters These counters are per-thread and per-session id. Adjust tests to verify proper function. Type: refactor Signed-off-by: Klement Sekera <klement.sekera@gmail.com> Change-Id: Ie597928022b6ac74c2220019b9e8e1714295f170
2022-02-14bfd: refactor code to fix misc warningsKlement Sekera1-46/+42
This change fixes multiple unused parameter warnings, narrowing conversion warnings and identical switch statement warnings. Type: refactor Signed-off-by: Klement Sekera <klement.sekera@gmail.com> Change-Id: I4140e939c409ce06cc5aaaf5e1b042681f7ca448
2022-02-09bfd: Add an update API that has create new or modify existing semanticsNeale Ranns1-22/+70
Type: improvement helps keep the agents stateless Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I3588f13c081e24f5a8083b490eb02856361e4ccb
2021-12-18bfd: fix NULL dereference in bfd_api_verify_commonFrédéric Perrin1-1/+1
ip6_get_link_local_address() may return NULL if the local interface is not (or not yet) configured Type: fix Signed-off-by: Frédéric Perrin <fred@fperrin.net> Change-Id: I42bf2081582c4a36fa4e32145ca2f0ff73488110
2021-05-21bfd: use vnet cryptoKlement Sekera1-13/+0
Type: improvement Change-Id: I873a99c1258a97ed5ed195b9756e8302f865e7f0 Signed-off-by: Klement Sekera <ksekera@cisco.com> Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2020-12-14misc: move to new pool_foreach macrosDamjan Marion1-11/+13
Type: refactor Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-10-21misc: minimize dependencies on udp.hFlorin Coras1-1/+1
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id13f33843b230a1d169560742c4f7b2dc17d8718
2020-02-17bfd: use tw_timer_template instead of legacy wheelKlement Sekera1-10/+10
Type: refactor Change-Id: I04e71a64e676910dc4c6cbc1ab54ffb0c29aa5b9 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-12-17ip: Protocol Independent IP NeighborsNeale Ranns1-4/+4
Type: feature - ip-neighbour: generic neighbour handling; APIs, DBs, event handling, aging - arp: ARP protocol implementation - ip6-nd; IPv6 neighbor discovery implementation; separate ND, MLD, RA - ip6-link; manage link-local addresses - l2-arp-term; events separated from IP neighbours, since they are not the same. vnet retains just enough education to perform ND/ARP packet construction. arp and ip6-nd to be moved to plugins soon. Change-Id: I88dedd0006b299344f4c7024a0aa5baa6b9a8bbe Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-11-16bfd: allow IPv6 link-local address as local addressAlexander Chernavin1-15/+30
Type: fix Change-Id: Ia3dacd2628591f7ba9710e8e4d68df97ae21935c Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2019-07-23api: binary api cleanupDave Barach1-4/+4
Multiple API message handlers call vnet_get_sup_hw_interface(...) without checking the inbound sw_if_index. This can cause a pool_elt_at_index ASSERT in a debug image, and major disorder in a production image. Given that a number of places are coded as follows, add an "api_visible_or_null" variant of vnet_get_sup_hw_interface, which returns NULL given an invalid sw_if_index, or a hidden sw interface: - hw = vnet_get_sup_hw_interface (vnm, sw_if_index); + hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index); if (hw == NULL || memif_device_class.index != hw->dev_class_index) return clib_error_return (0, "not a memif interface"); Rename two existing xxx_safe functions -> xxx_or_null to make it obvious what they return. Type: fix Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697 Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-07bfd: midchain adjacency supportMatthew G Smith1-10/+51
Support an adjacency with lookup_next_index of IP_LOOKUP_NEXT_MIDCHAIN so tunnel interfaces can have BFD configured on them. Also, check if the interface a session is configured on is up and skip assembling the packet and calculating the checksum if the interface is down. Change-Id: I44f76478d0fc1592e3491dd9368819a5c957e74a Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2019-03-12bfd: register udp ports only when enabledKlement Sekera1-14/+49
Change-Id: Iffb4b314be3ded0d9c6acb77ec1c6f22778f301d Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-01-20buffers: don't init metadata, as it is already initializedDamjan Marion1-1/+0
Change-Id: Ia083050389853c25b069f0f8286d50d3f4aef527 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-8/+8
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach1-7/+7
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-08-29Address bfd rpc scale issuesDave Barach1-19/+47
Remove the expensive RPC call for every received packet and replace it with lock-protected direct calls. Reinstate RPC for the less frequent notification traffic. Adjust the wakeup event sending logic to minimize the number of events sent, by measuring the time it takes from sending the event to processing it, and subsequently not sending the event if the pending wake-up time is within 2x or the event propagation delay. Eventually: remove oingo / oingoes. Change-Id: I0b3d33c5d029527b54867a97ab07f35f346aaa3d Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> Signed-off-by: Steve Shin <jonshin@cisco.com> Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-08-09bfd:fix NULL session free/putEyal Bari1-1/+0
Change-Id: If9f1f8c16c098c453bb53591e50a4cbd7cb192e4 Signed-off-by: Eyal Bari <ebari@cisco.com>
2018-05-07BFD: Fix format_ip46_address() parameter ordering.Jon Loeliger1-1/+1
Change-Id: I2b50e3fc06b4e905395d4706083f12ebc76826ce Signed-off-by: Jon Loeliger <jdl@netgate.com>
2018-04-17Add logging supportDamjan Marion1-15/+36
Change-Id: Ieac9cf50156dbbb4962411e900d59256441915ef Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-07-14vnet_buffer_t flags cleanupDamjan Marion1-2/+2
Change-Id: I123eccea98abafeb31f25d2a162501e2eded60d4 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-07-14Introduce l{2,3,4}_hdr_offset fields in the buffer metadataDamjan Marion1-2/+2
To save space in the first cacheline following is changed: - total_length_not_including_first_buffer moved to the 2nd cacheline. This field is used only when VLIB_BUFFER_TOTAL_LENGTH_VALID and VLIB_BUFFER_NEXT_PRESENT are both set. - free_list_index is now stored in 4bits inside flags, which allows up to 16 free lists. In case we need more we can store index in the 2nd cachelin Change-Id: Ic8521350819391af470d31d3fa1013e67ecb7681 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-02BFD: don't crash if interface is deletedKlement Sekera1-33/+42
Instead, drop the BFD session associated with it.. Change-Id: Ie09877d5c94844be2e833900d9dde7f23edaf8cd Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-04-05BFD: add ARP-awareness, fix bugsKlement Sekera1-10/+128
Make BFD ARP-aware when sending out packets. Fix a few one-liner bugs discovered while integrating with cisco nexus. Enhance CLI view to better observe session state. Change-Id: I266c29492f351207b84328ab665d9d697969da9c Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-03-06BFD: documentationKlement Sekera1-0/+4
Change-Id: I06a23d24340c5527f3848177d2178bf3e55f7614 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-03-06BFD: remove unneeded codeKlement Sekera1-15/+0
Change-Id: I0371e8e3c94bb793e3c64d5f51aaebf19dddc4b4 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-03-02BFD: command line interfaceKlement Sekera1-99/+21
Implement command line interface to the BFD binary APIs. Add corresponding unit tests. Change-Id: Ia0542d0bc4c8d78e6f7b777a08fd94ebfe4d524f Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-03-01VPP-598: tcp stack initial commitDave Barach1-2/+2
Change-Id: I49e5ce0aae6e4ff634024387ceaf7dbc432a0351 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-02-26BFD: echo functionKlement Sekera1-61/+225
Change-Id: Ib1e301d62b687d4e42434239e7cd412065c28da0 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-15BFD: loop back echo packetsKlement Sekera1-11/+218
Change-Id: I772b63ac25ebfccaff9ab9d8d0b1445e85f21df7 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-14BFD: set per session UDP source port per RFCKlement Sekera1-4/+36
Change-Id: Id294dbbd6499ae8221cc8143e1027adc08866ae6 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-08BFD: minor fixesKlement Sekera1-4/+2
Change-Id: I1c93f96a752eb2ffd1117a656552131cde1fa489 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-08BFD: modify session parametersKlement Sekera1-21/+40
Change-Id: I666e5c0cc71a3693640960c93cdd1907f84fbe23 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-02BFD: SHA1 authenticationKlement Sekera1-57/+286
Add authentication support to BFD feature. Out of three existing authentication types, implement SHA1 (sole RFC requirement). Simple password is insecure and MD5 is discouraged by the RFC, so ignore those. Add/change APIs to allow configuring BFD authentication keys and their usage with BFD sessions. Change-Id: Ifb0fb5b19c2e72196d84c1cde919bd4c074ea415 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-02BFD: improve finding of ipv4/ipv6 headersKlement Sekera1-48/+62
Avoid coverity warning and improve safety by declaring a helper structure and working with it when searching for ip headers. Make sure the content following IPv6 header is actually UDP before parsing it. Bail out if unexpcted IPv6 header found ... Change-Id: I1c6b9fd42d6fdae226f12c91c53c07a932b29522 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-31BFD: reformat code to match vpp code styleKlement Sekera1-158/+186
Change-Id: I40deb8b40f5d3a96d2c0dcb400f489cd05a64348 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-17BFD: IPv6 supportKlement Sekera1-50/+195
Change-Id: Iaa9538c7cca500c04cf2704e5bf87480543cfcdf Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-11BFD: fix bfd_udp_add APIKlement Sekera1-5/+7
Fix reporting of bs_index in the return message. Enhance test suite to cover this case. Change-Id: I37d35b850818bc1a05abe67ca919c22aeac978b6 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-03BFD: immediately honor reduced remote_min_rx intervalKlement Sekera1-0/+1
Change-Id: I7f09b45c926557d2ad0e2706b38fa56ff8194a3d Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+639
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>