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path: root/src/vnet/ip/ip6_forward.c
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2017-04-07MPLS McastNeale Ranns1-0/+23
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>
2017-04-06Use thread local storage for thread indexDamjan Marion1-12/+12
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>
2017-03-29Mtrie optimisationsNeale Ranns1-6/+0
1 - make the default route non-special, i.e. like any other less specific route. Consequently, all buckets have a valid valid index of either a leaf or a ply. Checks for special indeices in the data-path can thus be removed. 2 - since all leaves are now 'real' i.e. they represent a real load-balance object, to tell if a ply slot is 'empty' requeirs chekcing that the prefix length of the leaf occupying the slot is slot than the minium value for that ply. 3 - when removing a leaf find the cover first, then recurse down the ply and replace the old leaf with the cover. This saves us a ply walk. Change-Id: Idd523019e8bb1b6ef527b1f5279a5e24bcf18332 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-27Mcast rewrite no memcpyNeale Ranns1-3/+3
use a 32bit mask in the adjacency to AND with the IP address and OR into the rewrite. Change-Id: I80b0f246c18fd74f3e43c5d49e25833412f34665 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-17Cache a 'has-features' flag on the adjacency for faster access. Reclaim the ↵Neale Ranns1-8/+13
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>
2017-03-07In-band OAM active probe (VPP-471)AkshayaNadahalli1-28/+4
Change-Id: Icf0ddf76ba1c8b588c79387284cd0349ebc6e45f Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-07make per-adj counters configurableNeale Ranns1-16/+32
Change-Id: Ifdd2b204ecf7d855f1269c11224b9c825311904d Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-07Fixing loadbalancing over ECMP for recursive routesAkshayaNadahalli1-6/+5
Change-Id: Ibe1734aeb94bc17cd8d8bc6f35ca7b780aaa9599 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-03-06ioam: manycast using iOAM and SR (VPP-628)Shwetha Bhandari1-74/+44
Change-Id: I6d2afda991d771fb4a89fc3f6544f8e940a9b9f0 Signed-off-by: Shwetha Bhandari <shwethab@cisco.com>
2017-03-03Changing the IP table for an interface is an error if the interface already ↵Neale Ranns1-10/+29
has an address configured (VPP-601) Change-Id: I311fc264f73dd3b2b3ce9d7d1c33cd0515b36c4a Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-02-17Remove duplicate ip6 get interface address codeNeale Ranns1-6/+2
Change-Id: I5e0057b36bc4221e688a27fc1c0f602f78132991 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-02-13Out-of-tree Build Error fixAkshayaNadahalli1-0/+20
File vnet/fib/fib_urpf_list.h was included in vnet/fib/ip6_fib.h but was exported to be installed in /usr/include/vnet. So out-of-tree builds relying on an installed package was failing. Fix is to inlcude fib_urpf_list.h in source file rather than including it in header file. Change-Id: Iae39c1d9417dbd31ee67fa1bd2d1915d5e813c73 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-02-13VPP-632 : InBand OAM AnalyserAkshayaNadahalli1-0/+3
Refer to jira ticket for more details. Change-Id: I6facb9ef8553a21464f9a2e612706f152badbb68 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-02-08Fix source address reachability check for ip6 local packetsAkshayaNadahalli1-6/+3
Currently ip6 local check fails with error - source lookup miss if route to source of packet is over a dpo object such as load balance - recurssive route, tunnel adj - GRE, SR etc. So unless packet source is of a directly connected neibhor or has route with both interface and nexthop specified, it will be dropped. Fix is to check urpf list and if at least one link exists in the list, then allow packets to be processed, else drop. Change-Id: Id426311bb63bab506754a79409c602fdb6d0f190 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
2017-01-31Add vxlan-bypass feature to IP6 forwarding pathJohn Lo1-1/+8
Add vxlan-bypass feature which can be enabled on the IP6 underlay interface which receive VXLAN packets to accelerate VXLAN decap processing. The CLI to enable/disable it is: set interface ip6 vxlan-bypass <interface> [del] The vxlan-bypass feature is already supported on the IP4 underlay interface. The CLI to enable/disable it is: set interface ip vxlan-bypass <interface> [del] Move vxlan-bypass API/CLI support code from decap.c to vxlan.c. Also fixed two issues in the VXLAN decap path in the vxlan-input node: 1. Add verification of VXLAN packet FIB index with the encap-vrf-id of the VXLAN tunnel. 2. Fix checking of VXLANoIPv6 packet mcast DIP against that of the IP6 mcast VXLAN tunnel. Change-Id: I2bad4074a468c48fbb8bb5ac64f6437190756ed2 Signed-off-by: John Lo <loj@cisco.com>
2017-01-27IP Multicast FIB (mfib)Neale Ranns1-28/+55
- 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>
2017-01-25[re]Enable per-Adjacency/neighbour countersNeale Ranns1-12/+12
Change-Id: I953b3888bbc6d8a5f53f684a5edc8742b382f323 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-01-16LISP: Enhance IPx offset computingFilip Tehlar1-0/+5
Change-Id: I0ccb0db73bcf4e2a282cabd4ebbe49599fa8ee7c Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2017-01-10IPv6 NS RS tests and fixesNeale Ranns1-2/+4
includes Fix for VPP-584 with API change to remove prefix length from LL programming Change-Id: If860751c35e60255fb977f73bc33e8c2649e728e Signed-off-by: Neale Ranns <nranns@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+3402
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>