I agree with the PR review from mstap and merged
the following two functions into one.
- zapi_nexthop_seg6_cmp
- zapi_nexthop_seg6local_cmp
[note]
If both of them have more complex extensions in the future,
I think it will be less confusing to remove the integration
of these functions and make them as separate functions as
before.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit make bgpd to support install H.Encaps(seg6 mode segs) routes
when VPN-prefix has Prefix-sid.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit make bgpd to support VPN SID advertisement
as BGP Prefix-SID when route-leaking from BGP-vrf instance
to BGP-vpn instance.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit add cli to check bgp's srv6 status
which is srv6-locator name and its locator-chunks
for bgpd. And this command also can be used to
check tovpn_sid for each bgp instances.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit add cil to configure BGP SRv6-VPN sid allocation.
Almost mechanism are based on BGP MPLS-VPN.
User can allocate and export sid with using following config.
Then bgpd try to allocate new SID to redirect vpn to vrf using
SRv6 localsid End.DT4/DT6. Currently linux kernel will regect
End.DT4 route install due to no-implementation.
(at-least today's FRR's ci kernel.)
So now we only supports BGP SRv6-VPNv6.
router bgp 1
segment-routing srv6
locator loc1
!
address-family ipv6 vpn
exit-address-family
!
router bgp 1 vrf vrf10
address-family ipv6 unicast
sid vpn export 1 !!(option1)!!
sid vpn export auto !!(option2)!!
exit-address-family
!
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit add command to speficy SRv6 locator for BGP SRv6-VPN.
CLI example is follow. CLI block of "segment-routing" is already
implemented by previous commits and it's managed by zebra.
Zebra manage just the ownership of locator's prefix.
Zlient can request to get srv6-locator's prefix chunk using
srv6_manager_get_locator_chunk() which is usuful func to
execute ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK api. This request
is wokring as async, And zebra calls same api to Zclients when
zebra allocate locator prefix chunk.
And then, finally zclient(bgpd) catch the information via
process_srv6_lcoator_chunk callback function.
router bgp 1
segment-routing srv6
locator loc1
!
!
segment-routing
srv6
locators
locator loc1
prefix 2001:db8:1:1::/64
!
!
!
!
[POINT_OF_REVIEW]
In current implementation, user can just configure srv6 locator
but user can't de-configure srv6 locator.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit add base-lines for BGP SRv6 VPN support.
srv6_locator_chunks property of struct bgp is used
to store BGPd's own SRv6 locator chunk getting with
ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK api.
And srv6_functions is used to store BGP's srv6
localsids. It's mainly used when new SID reservation
from locator chunks.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
base
This commit implement the contents of following 2 functions.
- bgp_global_afi_safis_afi_safi_ipv6_unicast_vpn_config_import_vpn_modify
- bgp_global_afi_safis_afi_safi_ipv6_unicast_vpn_config_export_vpn_modify
This implementation is based on already implemented function for ipv4.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit add usuful function to configure SRv6 localsid
which is represented with seg6local lwt route.
Now, it can support only NEXTHOP_TYPE_IFINDEX route.
Actual configurationof SRv6 localsid is performed with
ZEBRA_ROUTE_ADD. So this is just a wrapper function
for route-install.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit fix bgpd's prefix-sid type4,5 feature which has
miss implementation from https://github.com/FRRouting/frr/pull/5653
was merged. Due to some nessesary lines are not presented.
When bgpd receives multi update message with same service-sid on
prefix-sid type-5 attribute, bgpd will crash arround path-attribute's
values object reference count.
And also, this commit add a topotest to check that feature work fine.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
We can install seg6 routes from shapd cli.
This is for the behaviour test(topotest) to ensure
SRv6 ZAPI is working fine.
NEW-CLI:
sharp install routes 1::1 nexthop-seg6 2001::1 encap a::
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
FRRouting operator can install seg6 route via ZAPI,
But linux kernel operator also can install seg6 route
via Netlink directry (i.e. iproute2)
This commit make zebra to parse non-frr seg6 route
configuration via netlink and audit Zebra's RIB.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
With this patch, zclient can intall seg6 rotues when
they set properties "nh_seg6_segs" on struct nexthop
and set ZEBRA_FLAG_SEG6_ROUTE on zapi_route's flag.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit add new nexthop's addional object for SRv6
routing about seg6 route. Before this commit,
we can add MPLS info as additional object on nexthop.
This commit make it add more support about seg6 routes.
seg6 routes are ones of the LWT routing mechanism,
so configuration of seg6local routes is performed by
ZEBRA_ROUTE_SEND, it's same as MPLS configuration.
Real configuration implementation isn't implemented at
this commit. later commit add that. This commit add
only nexthop additional object and some misc functions.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is a part of #5853 works.
This commit add new topotest to verify SRv6-manager's functionality.
Following tests are performed on this topotest.
- check that SRv6-locator is set correctly
- check that default SRv6-function locator is set correctly
- check that SRv6-function is installed as ipv6 route correctly
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is a part of #5853 works that add new clis to
configure SRv6 locator and its show commands.
Following clis are added on this commit.
vtysh -c 'conf te' \
-c 'segment-routing' \
-c ' srv6' \
-c ' locators' \
-c ' locator LOC1' \
-c ' prefix A::/64'
- "show segment-routing srv6 sid [json]"
- "show segment-routing srv6 locator [json]"
- "show segment-routing srv6 locator NAME detail [json]"
- "show runnning-config" (make it to print srv6 configuration)
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is a part of #5853 works that add new ZAPI to
configure SRv6 locator which manages chunk prefix for
SRv6 SID IPv6 address for each routing protocol daemons.
NEW-ZAPIs:
* ZEBRA_SRV6_LOCATOR_ADD
* ZEBRA_SRV6_LOCATOR_DELETE
* ZEBRA_SRV6_MANAGER_CONNECT
* ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
* ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK
Zclient can connect to zebra's srv6-manager with
ZEBRA_SRV6_MANAGER_CONNECT api like a label-manager.
Then zclient uses ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK to
allocated dedicated locator chunk for it's routing protocol.
Zebra works for only prefix reservation and distribute
the ownership of the locator chunks for zcliens.
Then, zclient installs SRv6 function with
ZEBRA_ROUTE_ADD api with nh_seg6local_* fields.
This feature is already implemented by another PR(#7680).
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is a part of #5853 works that add new structures for
SRv6-locator. This structure will be used by zebra and another
routing daemon and its ZAPI messaging to manage SRv6-locator.
Encoder/decoder for ZAPI stream is also added by this commit.
Real configuration mechanism isn't implemented at this commit.
later commit add real configure implementation. This commit add only
SRv6-locator's structures and misc functions.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is a part of #5853 that add new cmd-node for SRv6 configuration.
This commit just add cmd-node and moving node cli only, acutual SRv6 config
command isn't added. (that is added later commit. of this branch)
new cli nodes:
* SRv6
* SRv6-locators
* SRv6-locator
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit checks seg6local route configuration via ZAPI is
working fine.
SRv6 feature is little young feature as kernel feature so netlink
interface may be changed/updated in the future. And this ZAPI extention
is something to support new routing paradigm, so it should be checked by
topotests until srv6 feature of linux kernel will be well stable.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
In this patch, we can install seg6local routes from shapd cli. New sub
command "sharp install route $PREFIX nexthop-seg6local" is added to
install seg6local routes via ZEBRA_ROUTE_ADD. This is for the behaviour
test(topotest) to ensure SRv6 ZAPI is working fine.
NEW-CLI:
sharp install routes 1::1 nexthop-seg6local dum0 End 1
sharp install routes 2::1 nexthop-seg6local dum0 End_X 2001::1 1
sharp install routes 3::1 nexthop-seg6local dum0 End_T 10 1
sharp install routes 4::1 nexthop-seg6local dum0 End_DX4 10.0.0.1 1
SRv6 routes are installed as NEXTHOP_IFINDEX routes because of seg6local
specification. seg6local routes depends the output device status instead
of routing-nexthop.
FYI:
In seg6local implementation, kernel don't care RTA_OIF on the nexthop
deeply but some requirement are exist as follow.
(a) DEV isn't loopback interface
(b) DEV's ipv6 status is enabled
(c) DEV's enslaving status is the same with target-route
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
current route addition mechanism on shaprd support only ipv4/v6 nexthop
routes simply. so It doesn't need to ensure flags of zapi_routes.
Then when we want to configure more complicated routing feature (like a
srv6), we will want to control flags of zapi_route. In this patch, it
will supports to configure flags of zapi_route when sharpd calls
ZEBRA_ROUTE_ADD.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
FRRouting operator can install seg6local route via ZAPI,
But linux kernel operator also can install seg6local route
via Netlink directry (i.e. iproute2)
This commit make zebra to parse non-frr seg6local
route configuration via netlink and audit Zebra's RIB.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
With this patch, zclient can intall seg6local rotues whem
they set properties nh_seg6local_{action,ctx} on struct nexthop
and set ZEBRA_FLAG_SEG6LOCAL_ROUTE on zapi_route's flag.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is a part of #5853 works that add new nexthop's addional
object for SRv6 routing about seg6local route. Before this commit,
we can add MPLS info as additional object on nexthop.
This commit make it add more support about seg6local routes.
seg6local routes are ones of the LWT routing mechanism,
so configuration of seg6local routes is performed by
ZEBRA_ROUTE_SEND, it's same as MPLS configuration.
Real configuration implementation isn't implemented at this commit.
later commit add that. This commit add only nexthop additional object
and some misc functions.
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
