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path: root/src/vnet/adj/adj_nbr.c
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2021-09-13ip-neighbor: Handle local MAC address change for incomplete adjacenciesNeale Ranns1-1/+34
Type: fix When the local MAC address of an interface changes the rewrite strings of all adjacency types need to be updated - this patch fixes the missing case of incomplete adjacencies. I moved the update of all adj types into the adj module, since if the complete adjs were done by the ip-neighbour module and incomplete ones by adj module, that would mean two walks of the adj DB, as it is not possible to walk only a specific type. UT is updated to include the missing case. Signed-off-by: Neale Ranns <neale@graphiant.com> Signed-off-by: Ivan Shvedunov <ivan4th@gmail.com> Change-Id: I36af94976c645bdd0d4d3bc0093b24d7d077e9d7
2021-06-08fib: make sure adj is valid during walkBenoît Ganne1-0/+3
The adj can be deleted during fib_walk_sync(), make sure it can happen only after clearing the SYNC_WALK_ACTIVE flag. Type: fix Change-Id: I68be00e9602e2783d9dced71c51547c38b7e8a00 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-02-15ip: Path MTUNeale Ranns1-1/+24
Type: feature Support setting the MTU for a peer on an interface. The minimum value of the path and interface MTU is used at forwarding time. the path MTU is specified for a given peer, by address and table-ID. In the forwarding plane the MTU is enfored either: 1 - if the peer is attached, then the MTU is set on the peer's adjacency 2 - if the peer is not attached, it is remote, then a DPO is added to the peer's FIB entry to perform the necessary fragmentation. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I8b9ea6a07868b50e97e2561f18d9335407dea7ae
2020-09-02fib: fix ADJ_NBR_ITF_OK param erroryedg1-1/+1
Type: fix Signed-off-by: yedonggang <yedg@wangsu.com> Change-Id: I3bf67070ed01df40626f3b90f2762158b6c3ce05
2020-09-01fib: detect wrong adj neighbour bugsBenoît Ganne1-0/+23
Type: improvement Change-Id: Ie063ee0a0c59a9ad632200ce2b23703bc0d936e6 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-05-29fib: Safe adj walkNeale Ranns1-8/+15
Type: fix the hash walk does not give the same guarantees as the bihash so walk in a safe manner. Change-Id: Idfe48c3a84ab3a341d887f7d196bc81ba34ae8b0 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-05-26fib: Use basic hash for adjacency neighbour tableNeale Ranns1-82/+42
Type: improvement a bihash per-interface used too much memory. Change-Id: I447bb66c0907e1632fa5d886a3600e518663c39e Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-05-04fib: midchain adjacency optimisationsNeale Ranns1-2/+9
Type: improvement - inline some common encap fixup functions into the midchain rewrite node so we don't incur the cost of the virtual function call - change the copy 'guess' from ethernet_header (which will never happen) to an ip4 header - add adj-midchain-tx to multiarch sources - don't run adj-midchain-tx as a feature, instead put this node as the adj's next and at the end of the feature arc. - cache the feature arc config index (to save the cache miss going to fetch it) - don't check if features are enabled when taking the arc (since we know they are) the last two changes will also benefit normal adjacencies taking the arc (i.e. for NAT, ACLs, etc) for IPSec: - don't run esp_encrypt as a feature, instead when required insert this node into the adj's next and into the end of the feature arc. this implies that encrypt is always 'the last feature' run, which is symmetric with decrypt always being the first. - esp_encrpyt for tunnels has adj-midchain-tx as next node Change-Id: Ida0af56a704302cf2d7797ded5f118a781e8acb7 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-02-03fib: refresh adj pointer after fib_walk_sync due to possible reallocSteven Luong1-0/+6
fib_walk_sync may call adj_alloc which may cause adj_pool to expand. When that happens, any previous frame which still use the old adj pointer needs to refresh. Failure to do so may access or update to the old adj memory unintentionally and crash mysteriously. Type: fix Ticket: VPPSUPP-54 Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I173dec4c5ce81c6e26c4fe011b894a7345901b24
2020-01-27ipip: Multi-point interfaceNeale Ranns1-9/+25
Type: feature plus fixes for gre Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0eca5f94b8b8ea0fcfb058162cafea4491708db6
2020-01-27fib: Reload the adj after possible realloc (VPP-1822)Neale Ranns1-0/+1
Type: fix Fixes: 418b225931634f6d113d2971cb9550837d69929d Change-Id: Ia5f4ea24188c4f3de87e06a7fd07b40bcb47cfc1 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-01-22fib: Adjacency realloc during rewrite update walk (VPP-1822)Neale Ranns1-4/+4
Type: fix Change-Id: I0e826284c50713d322ee7943d87fd3363cfbdfbc Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-12-17ip: Protocol Independent IP NeighborsNeale Ranns1-8/+11
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>
2019-12-17fib: Adjacency walk fix for IPv6Neale Ranns1-1/+1
Type: fix Change-Id: Id3a1950e49d5eb1883af06a14df97e98f55162a8 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-12-16vppinfra: bihash walk cb typedef and continue/stop controlsNeale Ranns1-3/+6
Type: feature Change-Id: I28f7a658be3f3beec9ea32635b60d1d3a10d9b06 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-12-15fib: Adjacency creation notifications for dlegatesNeale Ranns1-1/+4
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I3feddfe44dee528b9ca05aa0150e9423306ae49d
2019-10-16fib: fix use-after-free for interface adj removalBenoît Ganne1-0/+3
Type: fix Change-Id: I82308e368d14d84f5970dad229bdcf2de7d1839d Signed-off-by: Benoît Ganne <bganne@cisco.com>
2019-04-08fixing typosJim Thompson1-2/+2
Change-Id: I215e1e0208a073db80ec6f87695d734cf40fabe3 Signed-off-by: Jim Thompson <jim@netgate.com>
2019-03-28Typos. A bunch of typos I've been collecting.Paul Vinciguerra1-8/+8
Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-12-16IP6-MFIB: replace the radix tree with bihash (VPP-1526)Neale Ranns1-0/+2
Change-Id: I7a48890c075826fbd8c75436dfdc5ffff230a693 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-11-15GBP: redirect contractsNeale Ranns1-9/+7
Change-Id: I463b153de93cfec29a9c15e8e84e41f6003d4c5f Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-30ADJ: init MTU to interface defaultNeale Ranns1-0/+2
Change-Id: Iaecf8c060e1337d8c362ad9a9be2bb9701664397 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-1/+1
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-08-27Adjacency walks protected by 'walk in progress' flagNeale Ranns1-2/+11
Change-Id: I3281f65f7dec792d56de48afb39efcc2fed8578b Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-07-20IP directed broadcastNeale Ranns1-0/+5
with ip direct broadcast enable a packet to the interface's subnet broadcast address with be sent L2 broadcast on the interface. dissabled, it will be dropped. it is disabled by default, which preserves current behaviour Change-Id: If154cb92e64834e97a541b32624354348a0eafb3 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-06-11MTU: Software interface / Per-protocol MTU supportOle Troan1-1/+1
This patch separates setting of hardware interfaec and software interface MTU. Software MTU is L2 payload MTU (i.e. not including L2 header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set. Currently only IP4, IP6 are enabled in adjacency / rewrite code. Documentation in src/vnet/MTU.md Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690 Signed-off-by: Ole Troan <ot@cisco.com>
2018-05-25ARP proxy dumpsNeale Ranns1-1/+2
Change-Id: I8335ebf266becf2f42bb3f28a17dfed8d9b08f97 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-05-17tcp: handle link-local addressesFlorin Coras1-1/+1
Change-Id: I9ede6bc861350c7d9e78fa4d96cd584c2816d06f Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-04-25Adjacency walk more scalableNeale Ranns1-50/+25
When walking all adjacencies for a given {next-hop,interface} instead of walking all the adjacencies on that interface and matching the next-hop (which is O(n) in the number of adjacencies on that link, find all instances of an adjacency with any link-type and wtih that {next-hop,interfacE} pair: this is O(1). Change-Id: Ic80399fc9e93c8df111379c039e592d8cafbab18 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-03-30bond: show trace causes a crash if the interface is deletedSteven1-4/+2
For the debug image, if the interface is removed and the trace was collected prior to the interface delete, show trace may cause a crash. This is because vnet_get_sw_interface_name and vnet_get_sup_hw_interface are not safe if the interface is deleted. The fix is to use format_vnet_sw_if_index_name if all we need is to get the interface name in the trace to display. It would show "DELETED" which is better than a crash. Change-Id: I912402d3e71592ece9f49d36c8a6b7af97f3b69e Signed-off-by: Steven <sluong@cisco.com>
2018-02-16Allow providers to override glean behaviourNeale Ranns1-15/+0
and update glean address on local interface MAC change Change-Id: I530826d60c7e9db2b0fa2d45754139d82c5ea807 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-02-15Revert "Allow interface types to override glean adjacency behaivour"Ole Trøan1-0/+15
This reverts commit 8b30e471df4d42214619e1d6c50cc8298426b45f. Change-Id: I99edb236eb0a7f8ba3fba333c3481a710ebcb59c Signed-off-by: Ole Troan <ot@cisco.com>
2018-02-15Allow interface types to override glean adjacency behaivourNeale Ranns1-15/+0
update the glean adj on a local interface MAC change Change-Id: Ia5c5cde424ed0fea3431532cc5abf22b364bbab5 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-10-25L3 proxy FIB source for container networkingAndrew Yourtchenko1-0/+2
Change-Id: I4164c4c19c8dbfd73e6ddf94a12056325cc093b9 Signed-off-by: Neale Ranns <nranns@cisco.com> Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-04-07MPLS McastNeale Ranns1-2/+0
1 - interface-DPO Used in the Data-plane to change a packet's input interface 2 - MPLS multicast FIB entry Same as a unicast entry but it links to a replicate not a load-balance DPO 3 - Multicast MPLS tunnel Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to . 4 - Resolve a path via a local label (of an mLDP LSP) For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP. 5 - MPLS disposition path sets RPF-ID For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet. 6 - RPF check with per-entry RPF-ID An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface. Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-03Adjacency layout change and move to vnet/adjNeale Ranns1-4/+4
Change-Id: I03195a86c69f84a301051c6b3ab64456bbf28645 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-27Fix output feature processing (VPP-670)AkshayaNadahalli1-7/+6
Addressed comments. Change-Id: Ic7d863ea4126f5046986b661db45d26bcce2068f Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-27Fix output feature processing (VPP-670)AkshayaNadahalli1-0/+42
Change-Id: Ia9bab28fb5341712a7d984bb343074ca22d05aab Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-17Cache a 'has-features' flag on the adjacency for faster access. Reclaim the ↵Neale Ranns1-3/+1
node_index memeber from the rewrite for space - this is only used for formtting before: ip4-rewrite * * * * 2.66e1 256.00 after: ip4-rewrite * * * * 2.40e1 256.00 Change-Id: Ic397150727cad38811564777419ad6bd26b8a3a6 Signed-off-by: Neale Ranns <nranns@wasa-ucs-11.cisco.com>
2017-01-27IP Multicast FIB (mfib)Neale Ranns1-1/+1
- IPv[46] mfib tables with support for (*,G/m), (*,G) and (S,G) exact and longest prefix match - Replication represented via a new replicate DPO. - RPF configuration and data-plane checking - data-plane signals sent to listening control planes. The functions of multicast forwarding entries differ from their unicast conterparts, so we introduce a new mfib_table_t and mfib_entry_t objects. However, we re-use the fib_path_list to resolve and build the entry's output list. the fib_path_list provides the service to construct a replicate DPO for multicast. 'make tests' is added to with two new suites; TEST=mfib, this is invocation of the CLI command 'test mfib' which deals with many path add/remove, flag set/unset scenarios, TEST=ip-mcast, data-plane forwarding tests. Updated applications to use the new MIFB functions; - IPv6 NS/RA. - DHCPv6 unit tests for these are undated accordingly. Change-Id: I49ec37b01f1b170335a5697541c8fd30e6d3a961 Signed-off-by: Neale Ranns <nranns@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+1087
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>