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Type: fix
also cleanup any tracking at delete
Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: Id1037920c88c63e2029384af931064c00ed497aa
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Type: feature
the fib_source_t enum alone no longer defines the priority and
behaviour, instead each source must be allocated these attributes.
This allows the creation of other sources by the plugins (and
soon over the API).
Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I890ee820fbc16079ee417ea1fbc163192806e853
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if the adj source is not active then there is no existing cover
during a cover update
Type: fix
Ticket: VPP-1803
Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: Ie912f1c99345de4fb012bdcd97b443098d4a7351
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Usually the adj cover refinement check which ensures that for any
adj sourced prefix its cover is connected, is satified by the presence
of the interface source. The interface source has a high priority
hence during the adj refinement check get_flags() which uses the best
source, usually returns the flags for the interface source. However,
in the presence of higher priority sources that interpose get_flags does
not return connected and the check fails.
With this change add a specific check for the interface source if the
best is not connected.
Type: feature
Change-Id: Iabc3e29fe7c447fc3ef313e40b00d48fab09fba4
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Change-Id: Ic112180e53a55993b06ba18102202d6ac5854def
Signed-off-by: Neale Ranns <nranns@cisco.com>
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this is the case when the ADJ fib is in the non-forwarding trie
Change-Id: I7bcda475b3b1e142d16363147dba3a1e2c5a07f9
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I9052202b8cbcf656e61d635253d515f0f3a8d145
Signed-off-by: Neale Ranns <nranns@cisco.com>
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The interpose source allows the source/provider to insert/interpose
a DPO in the forwarding chain of the FIB entry ahead of the forwarding
provided by the next best source. For example if the API source (i.e
the 'control plane') has provided an adjacency for forwarding, then
an interpose source (e.g. a monitoring service) couold interpose a
replicatte DPO to copy the traffic to another location AND forward
using the API's adjacency.
To use the interose feature an existing source (i.e FIB_SOURCE_PLUGIN_HI)
cn specifiy as a flag FIB_ENTRY_FLAG_INTERPOSE and provide a DPO to
interpose. One might also consider using interpose in conjunction with
FIB_ENTRY_FLAG_COVER_INHERIT to ensure the interpose object affects
all prefixes in the sub-tree.
Change-Id: I8b2737b985f8f7c08123406d0491881def347b52
Signed-off-by: Neale Ranns <nranns@cisco.com>
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forwarding provided by the source is pushed to all other entries
it covers in the sub-tree
Change-Id: I2a45222ef653358f55c2436de3e3c6353cfadba2
Signed-off-by: Neale Ranns <nranns@cisco.com>
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there are, intentionally, no validation checks in the ARP/ND code to prevent an ARP/ND entry from being installed for an address that is not local to the interface's sub-net. This is ok, since the adjacency/FIB code is designed to handle this case using the 'refinement' criteria - i.e. only installing a FIB entry for the address if the address 'refines' (i.e. is more specific than) the interface's sub-net.
However, the refinement criteria currently operates on the FIB entry's prefix (which is a /32, so on the address) and not on the next-hop in the path.
So, enter multiple ARP entries for the same address on different links, and this refinement criteria uses only the last added path, and so will remove the FIB entry should the ARP entries be added in the 'wrong' order.
This fix updates the refinement criteria to work on each path of the FIB entry. The entry is installed if one of the paths refines the covers and only paths refining the cover contribute forwarding.
Per-path refinement checks are stored in path-extensions. The patch is rather large as path-extension, which were previously used only for out-going MPLS labels, have been generalized.
Change-Id: I00be359148cb948c32c52109e832a70537a7920a
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I3fa2f35056b74e479288bb956f2713f727a81c72
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>
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