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zebra: zebra crash for zapi stream
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This commit undo 8c9b007a0c7efb2e9afc2eac936ba9dd971c6707
stream lib has been modified to expand the stream if needed
Now for zapi route encode, we use expandable stream
Signed-off-by: Soumya Roy <souroy@nvidia.com>
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At VRF disabling, keep the route entries that was associated to its
table ID but not to the VRF itself. Kernel flushes these entries so we
need to reinstall them.
To do so, add a flag to mean that a route entry is owned by a table ID
and not by a VRF. If the VRF associated to the table ID is deleted, the
route entry must not be deleted.
Update to tests with new flag. 2057 is in hexa 0x809, meaning that the
new flag has been to some prefix.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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required stream size is evaluated as a fix part and variable one.
the variable one depend on the number of nexthops.
Signed-off-by: Francois Dumontet <francois.dumontet@6wind.com>
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static: fix botched staticd YANG conversion for dst-src
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When a daemon wants to know about its routes, make it possible to have
that work for dst-src routes.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Document where relevant about the instance overload to table ID so users
know what to expect.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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Implement the necessary data structures and code changes to support sending
table-direct routes to protocols running in different VRFs.
Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
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Modified ZEBRA_NEXTHOP_LOOKUP_MRIB to include the SAFI from which to do the lookup.
This generalizes the API away from MRIB specifically and allows the user to decide how it should do lookups.
Rename ZEBRA_NEXTHOP_LOOKUP_MRIB to ZEBRA_NEXTHOP_LOOKUP now that it is more generalized.
This change is in preperation to remove multicast lookup mode completely from zebra.
Signed-off-by: Nathan Bahr <nbahr@atcorp.com>
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clang-19's SA complains about unused initializers for this kind of
"switch (enum) { return string }" kind of code. Use direct string
return values to avoid the issue.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Signed-off-by: Donna Sharp <dksharp5@gmail.com>
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In the near future, some daemons may only register SIDs. This may be
the case for the pathd daemon when creating SRv6 binding SIDs.
When a locator is getting deleted at ZEBRA level, the daemon may have
an easy way to find out the SIds to unregister to.
This commit proposes to add the locator name to the SID_SRV6_NOTIFY
message whenever possible. Only case when an allocation failure happens,
the locator will not be present. In all other places, the notify API
at procol levels has the locator name extra-parameter.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add a new ZAPI command `ZEBRA_SRV6_SID_NOTIFY` used by zebra to send
asynchronous SRv6 SIDs notifications to zclients.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add two new ZAPI operations: `ZEBRA_SRV6_MANAGER_GET_SRV6_SID` and
`ZEBRA_SRV6_MANAGER_RELEASE_SRV6_SID`. These APIs allow a daemon to get and
release an SRv6 SID, respectively.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Add a new ZAPI operation, ZEBRA_SRV6_MANAGER_GET_LOCATOR, which allows a
daemon to request information about a specific locator from the SRv6 SID
Manager.
Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
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Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
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Add a ZAPI message to control the setting of the IFF_NOARP flag.
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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This is needed to be generic. Let's make it so.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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This does not need to be nhrp specific.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Zebra nexthop rework
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zebra_interface_vrf_update_read is orphan. Remove it.
Fixes: b580c52698 ("*: remove ZEBRA_INTERFACE_VRF_UPDATE")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
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There is no function that both sets the nhg id, and sets
the ZAPI_MESSAGE_NHG flag if the nhg id is valid.
Create a ZAPI API to do this, and apply the changes wherever
needed.
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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*: Introduce Local Host Routes to FRR
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Avoids calling VRF/interface/... handlers in library code more than
once. It's kinda surprising that this hasn't been blowing up already
for the VNC code, luckily these handlers are (mostly?) idempotent.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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... and use it instead of fiddling with the `.synchronous` field.
(Make it const while at it.)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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This should just be set with `ZEBRA_ROUTE_NOTIFY_REQUEST` instead.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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*: Let's use the native IFNAMSIZ instead of INTERFACE_NAMSIZ
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INTERFACE_NAMSIZ is just a redefine of IFNAMSIZ and IFNAMSIZ
is the standard for interface name length on all platforms
that FRR currently compiles on.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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zapi_nexthop_update_decode() is no longer called externally.
Also move the comment to zclient->nexthop_update where it now belongs.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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All users of `ZEBRA_NEXTHOP_UPDATE` check the VRF and then call into
`zapi_nexthop_update_decode` before further processing. Begin moving
this into common code in lib/.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Create Local routes in FRR:
S 0.0.0.0/0 [1/0] via 192.168.119.1, enp39s0, weight 1, 00:03:46
K>* 0.0.0.0/0 [0/100] via 192.168.119.1, enp39s0, 00:03:51
O 192.168.119.0/24 [110/100] is directly connected, enp39s0, weight 1, 00:03:46
C>* 192.168.119.0/24 is directly connected, enp39s0, 00:03:51
L>* 192.168.119.224/32 is directly connected, enp39s0, 00:03:51
O 192.168.119.229/32 [110/100] via 0.0.0.0, enp39s0 inactive, weight 1, 00:03:46
C>* 192.168.119.229/32 is directly connected, enp39s0, 00:03:46
Create ability to redistribute local routes.
Modify tests to support this change.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Currently when one interface changes its VRF, zebra will send these messages to
all daemons in *order*:
1) `ZEBRA_INTERFACE_DELETE` ( notify them delete from old VRF )
2) `ZEBRA_INTERFACE_VRF_UPDATE` ( notify them move from old to new VRF )
3) `ZEBRA_INTERFACE_ADD` ( notify them added into new VRF )
When daemons deal with `VRF_UPDATE`, they use
`zebra_interface_vrf_update_read()->if_lookup_by_name()`
to check the interface exist or not in old VRF. This check will always return
*NULL* because `DELETE` ( deleted from old VRF ) is already done, so can't
find this interface in old VRF.
Send `VRF_UPDATE` is redundant and unuseful. `DELETE` and `ADD` are enough,
they will deal with RB tree, so don't send this `VRF_UPDATE` message when
vrf changes.
Since all daemons have good mechanism to deal with changing vrf, and don't
use this `VRF_UPDATE` mechanism. So, it is safe to completely remove
all the code with `VRF_UPDATE`.
Signed-off-by: anlan_cs <anlan_cs@tom.com>
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Append zebra and lib to use muliple SRv6 segs SIDs, and keep one
seg SID for bgpd and sharpd.
Note: bgpd and sharpd compilation relies on the lib and zebra files,
i.e if we separate this: lib or zebra or bgpd or sharpd in different
commits - this will not compile.
Signed-off-by: Dmytro Shytyi <dmytro.shytyi@6wind.com>
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After Zebra knows it's capability surrounding v6 with v4 nexthops
have it send this ability up to interested parties.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Add a new notification zapi message type. A zapi client
that uses opaque messages can register to be notified
when a server for an opaque type is present.
Signed-off-by: Mark Stapp <mjs@labn.net>
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Include the sending zapi client info (proto, instance, and
session id) in each opaque zapi message. Add opaque 'init'
apis for clients who want to encode their opaque data inline,
into the zclient's internal stream buffer. Use these init apis
in the TE/link-state lib code, instead of hand-coding the
zapi opaque header info.
Signed-off-by: Mark Stapp <mjs@labn.net>
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An L3VPN network can be configured on the main BGP instance,
with an SRv6 SID. By declaring a network, a seg6local route
is created but remains invalid.
The below BGP VPN configuration the default VRF has been
used:
> router bgp 1
> address-family ipv6 unicast
> sid vpn export auto
> rd vpn export 1:30
> rt vpn both 77:77
> import vpn
> export vpn
> network 2001:7::/64
> exit-address-family
The below seg6local route has been added:
> # show ipv6 route
> [..]
> B 2001:db8:2:2:300::/128 [20/0] is directly connected, unknown inactive, seg6local End.DT6 table 254, seg6 ::, weight 1, 00:00:07
>
When creating the seg6local route, an interface is used as nexthop.
The interface index is obtained from the vrf identifier. This is
true when using VRF interfaces, but is wrong when using the lo
interface which usually has the '1' ifindex whereas the vrf id for
the default VRF is 0.
Get the appropriate index from the vrf identifier.
The below seg6local route is visible:
> # show ipv6 route
> [..]
> B>* 2001:db8:1:1:300::/128 [20/0] is directly connected, lo, seg6local End.DT6 table 254, seg6 ::, weight 1, 00:00:15
>
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
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Let's find a better name for it.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Convert the `struct thread_master` to `struct event_master`
across the code base.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Effectively a massive search and replace of
`struct thread` to `struct event`. Using the
term `thread` gives people the thought that
this event system is a pthread when it is not
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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*: convert to SPDX License identifiers
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Add the ability to specify the label type along with the labels
you are passing to zebra in zapi_nexthop. This is needed as we
abstract the label code to be re-used by evpn as well as mpls.
Protocols need to be able to set the type of label they have attached.
Signed-off-by: Stephen Worley <sworley@nvidia.com>
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Done with a combination of regex'ing and banging my head against a wall.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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This reverts commit a5dd4bf47d1d24cfc5e916ff29f5124792e85a53.
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This commit adds ZAPI encoders & decoders for traffic control operations, which
include tc_qdisc, tc_class and tc_filter.
Signed-off-by: Siger Yang <siger.yang@outlook.com>
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lib, zebra: Allow for zebra to recognize that a route has gotten desy…
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At this point add abilty for the encode/decode of the
resilience down ZAPI to zebra. Just hookup sharpd
at this point in time.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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FRR does not use the NLM_F_APPEND semantics ( in fact I would argue that
the NLM_F_APPEND semantics just introduce pain for all parties involved )
I would also argue that most people who use the kernel netlink api
have recognized that NLM_F_APPEND for a route is a recipe for disaster
that is well documented and as such it is not used as anything other
than a curiousity by operators.
See:
https://bugzilla.redhat.com/show_bug.cgi?id=1337855
https://github.com/thom311/libnl/issues/226
Are 2 great examples of how confusing it is for anyone in user
space to know what the correct thing to do is. Given that
new fields can be added with no semantics to allow us to know
what has resulted in a change or not.
In an attempt to recognize this, let's note that FRR
believes it has gotten out of sync with the kernel.
Future commits will react to the desynchronized route
and request from the kernel a reload of that specific
route if possible.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: Madhuri Kuruganti <maduri111@gmail.com>
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Multipath route may have mixed nexthops of EVPN and IP unicast. Move
EVPN flag to nexthop to support such cases.
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
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