Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

libs: fix race in privs changes
Use the privs struct mutex more strictly, to ensure that the
privs are at the level the caller expects when the apis
return.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

Merge pull request #3935 from FRRouting/doc-add-fabricd-seealso
doc: include fabricd in see-also programs

libs: fix race in privs changes
Use the privs struct mutex more strictly, to ensure that the
privs are at the level the caller expects when the apis
return.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

Merge pull request #3889 from donaldsharp/rnh_vrf_down_stuff
zebra Rnh vrf down stuff

Merge pull request #3894 from donaldsharp/install_replace
zebra: When installing a new route always use REPLACE

Merge pull request #3894 from donaldsharp/install_replace
zebra: When installing a new route always use REPLACE

Merge pull request #3919 from sworleys/Remove-SNL-Var
zebra:        Remove unused sockaddr variable

zebra: move LSP updates into dataplane subsystem
Start performing LSP updates through the async dataplane
subsystem. This is plumbed through for linux/netlink.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: add apis to add and delete NHLFEs
Add public versions of zebra apis that add NHLFEs to an LSP,
and that free NHLFEs. The dataplane code needs to capture/copy
NHLFEs in order to do async LSP programming.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: remove use of sync LSP update apis
Remove the last use of the pre-dataplane LSP update apis;
remove the stubs from the 'null' implementation file.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: openbsd LSP update code
Finish the LSP update code for the async dataplane for
the openbsd platform. Remove synch apis now that we've
converted to the async code path.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: fix routing socket logic for labelled nexthops
Clarify and fix the logic used for labelled nexthops during
route updates on routing socket platforms.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: infra for LSP updates using dplane
Adding infra to zebra dplane to support LSP updates. Add
kernel api for LSP updates that uses a dataplane context; add
stub apis for netlink, bsd, and 'null' kernel paths. Add
version of netlink mpls update code that takes a dplane
context struct instead of a zebra lsp struct.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: reorg dataplane context to support lsp info
Move route info to a separate struct and use a union in the
dplane context to hold either route or lsp info. Add
accessors for LSP info.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: fix debug test in routing-socket update path
Fix the test used to pre-populate a string used in debugs
in the routing-socket route-update code path.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: Fix uninitialized value warning in dplane code
Fix a gcc-8 warning (at least) about a possible uninitialized
value in the zebra_dplane code.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: return dataplane provider plugin handle
When a dataplane provider/plugin registers, return the new
handle/object - that's needed to use some provider apis
later on.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

zebra: pass lists of results from dataplane to zebra
Pass lists of results back to zebra from the dataplane subsystem
(and pthread). This helps reduce the lock/unlock cycles when
zebra is busy. Also remove a couple of typedefs that made their
way into the dataplane header file - those violate the FRR style
guidelines.

Signed-off-by: Mark Stapp <mjs@voltanet.io>