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2021-05-26fib: During the mfib lookup set the unicast FIB index in the packet so that ↵Neale Ranns1-26/+28
a uRPF check on a for-us packet is done in the correct VRF Type: fix Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Iafa6efea0d96962aa9136dccefc148a961f74476
2019-06-05In ip6_mfib_forward_rpf_node,is_v4 should be 0.mu.duojiao1-1/+1
Change-Id: I9de63cebfcef8898d0ea4c9c2b7451b168b06c2c Signed-off-by: mu.duojiao <mu.duojiao@zte.com.cn>
2019-03-11mfib: migrate old MULTIARCH macros to VLIB_NODE_FNFilip Tehlar1-29/+9
Change-Id: I7114cd55ce1fc320d17b36cab731546fe4c58a72 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2018-12-16IP6-MFIB: replace the radix tree with bihash (VPP-1526)Neale Ranns1-3/+3
Change-Id: I7a48890c075826fbd8c75436dfdc5ffff230a693 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-10-19vppinfra: add atomic macros for __sync builtinsSirshak Das1-2/+2
This is first part of addition of atomic macros with only macros for __sync builtins. - Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/) Additionally - clib_atomic_release macro added and used in the absence of any memory barrier. - clib_atomic_bool_cmp_and_swap added Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b Original-patch-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Sirshak Das <sirshak.das@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com>
2018-01-24Improve the error reporting for a IP multicast RPF miss.Neale Ranns1-2/+12
now we get: 00:00:04:288925: pg-input ... 00:00:04:289345: ethernet-input ... 00:00:04:289524: ip6-input ... 00:00:04:289553: ip6-mfib-forward-lookup ... 00:00:04:289584: ip6-mfib-forward-rpf entry 14 itf 2 flags Forward, 00:00:04:289754: ip6-drop UDP: 2002::1 -> ff01:2::255 tos 0x00, flow label 0x0, hop limit 64, payload length 21 UDP: 1234 -> 1234 length 21, checksum 0x90d1 00:00:04:289802: error-drop ip4-input: Multicast RPF check failed 08:36:44,517 Count Node Reason 182 ip4-input Multicast RPF check failed 8 ip6-icmp-input neighbor advertisements sent 8 ip6-icmp-input router advertisements sent 8 arp-input ARP replies sent Change-Id: I1b29cda4ec77a88db45bfb25c7473cd64bbf501a Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-07MPLS McastNeale Ranns1-8/+21
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>
2017-01-27IP Multicast FIB (mfib)Neale Ranns1-0/+512
- 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>