FRR_DAEMON_INFO should now contain an array of 'frr_yang_module_info'
structures describing the YANG modules implemented by the daemon.
This array will be used by frr_init() function to load all YANG modules
and initialize the northbound callbacks during the daemon initialization.
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
Avoid running the shutdown/sigint handler code more than once. With
the async dataplane, once shutdown has been initiated, the completion
of all async updates triggers final shutdown of the zebra main
pthread. During that time, avoid taking and processing a second
signal, such as SIGINT or SIGTERM.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Impose a configurable limit on the number of route updates
that can be queued towards the dataplane subsystem.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Dplane support for zebra's route cleanup during shutdown (clean
shutdown via SIGINT, anyway.) The dplane has the opportunity to
process incoming updates, and then triggers final cleanup
in zebra's main thread.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Add first pass at show commands for the zebra dplane. Add some stats
counters to show. Start prep for correct shutdown processing, and for
multiple providers.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Correct use of netlink_parse_info() in the netlink fuzzing path.
Also clarify a couple of comments about pthreads.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
We need a bit of special handling for system routes, which need
to be offered for redistribution even though they won't be
passing through the dplane system.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Initial WIP api to add providers into the zebra dataplane system,
with some simple ordering/prioritization.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Set SELECTED re immediately in rib_process, without expecting
that fib install has completed. Remove premature redistribute
call also.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Reduce or eliminate use of global zebra_ns structs in
a couple of netlink/kernel code paths, so that those paths
can potentially be made asynch eventually.
Slide netlink_talk_info into place to remove dependency on core
zebra structs; add accessors for dplane context block
Start init of route context from zebra core re and rn structs;
start queueing and event handling for incoming route updates.
Expose netlink apis that don't rely on zebra core structs;
add parallel route-update code path using the dplane ctx;
simplest possible event loop to process queued route'
updates.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
When we fail to install a route into bsd, note the case
where we have no viable nexthops installed for it, so
that we can know in zebra if the route is good or not.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The _wrap_script inclusion implies a certain end functionality
of which we don't care. We just care that the hooks are called.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
These three data structures belong in the `zebra_router` structure
as that they do not belong in `struct zebra_ns`.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Move the rules_hash to the zrouter data structure and provide
the additional bit of work needed to lookup the rule based upon
the namespace id as well. Make the callers of functions not
care about what namespace id we are in.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The `struct zebra_ns` data structure is being used
for both router information as well as support for
the vrf backend( as appropriate ). This is a confusing
state. Start the movement of `struct zebra_ns` into
2 things `struct zebra_router` and `struct zebra_ns`.
In this new regime `struct zebra_router` is purely
for handling data about the router. It has no knowledge
of the underlying representation of the Data Plane.
`struct zebra_ns` becomes a linux specific bit of code
that allows us to handle the vrf backend and is allowed
to have knowledge about underlying data plane constructs.
When someone implements a *bsd backend the zebra_vrf data
structure will need to be abstracted to take advantage of this
instead of relying on zebra_ns.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
The ->hash_cmp and linked list ->cmp functions were sometimes
being used interchangeably and this really is not a good
thing. So let's modify the hash_cmp function pointer to return
a boolean and convert everything to use the new syntax.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
We had a variety of issues with sorted list compare functions.
This commit identifies and fixes these issues.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
During a debugging session last night I discovered that I was
still having some `fun` figuring out why zebra was not making
a route's nexthop active. After some debugging I figured out
that I was missing some states that we could end up in that
didn't have debug information about what happened in nexthop_active.
Add the missing breadcrumbs for nexthop resolution. In addition
add a bit of code to notice the ebgp state without recursion turned
on and to let the user know about it.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
on some cases, kernel routes are not selected, because the kernel
suppressed it without informing the netlink layer that the route has
been suppressed ( for instance, when an interface goes down, the route
never goes back when interface goes up again). This commit intends to
suppress that entry from zebra.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Allow the modification of whether or not we will allow
BUM flooding on the vxlan bridge. To do this allow
the upper level protocol to specify via the ZEBRA_VXLAN_FLOOD_CONTROL
zapi message.
If flooding is disabled then BUM traffic will not be forwarded
to other VTEP's.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Work to handle the route-maps, namely the header changes in zebra_vrf.h
and the mapping of using that everywhere
Signed-off-by: vishaldhingra vdhingra@vmware.com
The condition in the do/while is always false because 'return_nsid' cannot
reach the end of the loop with 'return_nsid' having a different value than
NS_UNKNOWN. Because of that, the condition can be replaced with 0 (false).
Also, the loop can be removed because the two assignments made at the end
of the loop before the condition check are not used (detected via Clang,
afterwards).
Signed-off-by: F. Aragon <paco@voltanet.io>
Conditional code in netlink_macfdb_update() introduced in 2232a77c used
the 'dst_present' variable because not all cases were covered. Now it is
not necessary.
Signed-off-by: F. Aragon <paco@voltanet.io>
Wrapper the get/set of the table->info pointer so that
people are not directly accessing this data.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Unnecesary redeclaration of already-defined enum 'dp_results' removed.
Can be detected via static analysis with e.g.
./configure CFLAGS=-Wgnu-redeclared-enum CC=clang
Signed-off-by: F. Aragon <paco@voltanet.io>
Reduce or eliminate use of global zebra_ns structs in
a couple of netlink/kernel code paths, so that those paths
can potentially be made asynch eventually.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
All I can see is an unneccessary complication. If there's some purpose
here it needs to be documented...
Signed-off-by: David Lamparter <equinox@diac24.net>
When we receive a v6 RA packet with an optional
ND_OPT_SOURCE_LINKADDR take that data and construct the
v4 to v6 neighbor entry for that interface to allow
v4 w/ v6 nexthops to work with only global v6 addresses
on an interface.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Abstract the mac neigh installation for 169.254.0.1 into
it's own function that we can pass the mac address into.
This will allow a future commit to use this functionality
when we have the appropriate mac address from reading
optional attributes of a RA packet.
Signed-off-by: Donald Sharp <sharpd@cumuusnetworks.com>
This change makes the zebra acting as label manager proxy not to relay non-LM
messages to clients that a zebra acting in non-proxy mode may send to it. Also,
the existing code does not schedule a rcv in case of relay_response_back
returns -1. This patch re-schedules reads on the socket even in case such a
function returns -1 by calling thread_add_read().
Signed-off-by: F. Aragon <paco@voltanet.io>
Corrections so that the BGP daemon can work with the label manager properly
through a label-manager proxy. Details:
- Correction so the BGP daemon behind a proxy label manager gets the range
correctly (-I added to the BGP daemon, to set the daemon instance id)
- For the BGP case, added an asynchronous label manager connect command so
the labels get recycled in case of a BGP daemon reconnection. With this,
BGPd and LDPd would behave similarly.
Signed-off-by: F. Aragon <paco@voltanet.io>
The block comments from a couple commits were not following
proper style. Fix.
Fix SA warning that had snuck in.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Netdevices are not sorted in any fashion by the kernel during the initial
interface nldump. So you can get an upper device (such as an SVI) before
its corresponding lower device (bridge).
To fix this problem we skip resolving link dependencies during handling of
nldump notifications. Resolving instead at the end (when all the devices
are present)
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Ticket: CM-22388, CM-21796
Reviewed By: CCR-7845
Testing Done:
1. verified on a setup with missing linkages
2. automation - evpn-min
Ensure that when the is_router condition changes for a locally learnt
neighbor, it is informed to BGP only if it is active i.e., the MAC is
also locally learnt.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Reviewed-by: Chirag Shah <chirag@cumulusnetworks.com>
Ticket: CM-22288
Reviewed By: CCR-7832
Testing Done:
1. Failed test
2. vxlan_routing_test.py
Use boolean variables instead of unsigned int for certain VxLAN-EVPN
flags which are really used as boolean.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Reviewed-by: Chirag Shah <chirag@cumulusnetworks.com>
Ticket: CM-22288
Reviewed By: CCR-7832
Testing Done:
Along with a subsequent, related commit
When a remote MAC goes away, but there are neighbors referring to it,
ensure that when the last remote neighbor goes away, the MAC is
uninstalled from the kernel and no longer considered as remote.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Reviewed-by: Chirag Shah <chirag@cumulusnetworks.com>
Ticket: CM-22130
Reviewed By: CCR-7777
Testing Done:
1. Replicated failed scenario and verified with fix.
2. evpn-min
When a MAC moves from local to remote, a replace is allowed, EVPN
no longer has to delete the local MAC before installing the remote
MAC.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Reviewed-by: Chirag Shah <chirag@cumulusnetworks.com>
So the linux kernel uses the RT_TABLE_MAIN for the table
id used for ip routing. The multicast routing tables use
RT_TABLE_DEFAULT. We changed the internal code of zebra_vrf
a few months back to use RT_TABLE_MAIN as the tableid to
use. This caused the pim sg stats to stop working because
of the kernel bug where it uses a different table
for ip routing and ip multicast.
Put a bit of a special case in to do the right thing.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
When debugging the mroute code path in zebra, add a bit of additional
data to allow us to know what is going on a bit more.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Newer linux kernels apparently send data down the netlink
bus for the creation of mroutes. Add a bit of code
to notice this and to handle it appropriately( ie do
nothing at this point in time ) as that the correct
place to do this is in the pim socket in pimd.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
When we are displaying data about a netlink message
in debugs or errors, print out the message type
as a string instead of a number.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
