Add a function to unset the SRv6 locator for a specific IS-IS area.
This function calls `isis_zebra_srv6_manager_release_locator_chunk()` to
ask zebra to release the locator chunk owned by IS-IS and removes the
chunk from the area's chunks list.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Add a list of SRv6 locator chunks allocated to a specific IS-IS area.
The list is initialized when the IS-IS area is created and freed when
the IS-IS area is destroyed. Subsequent commits will introduce the
possibility to allocate and release locator chunks.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Add the name of the SRv6 locator to use with IS-IS to the per-area SRv6
configuration. If an SRv6 locator is not configured for an IS-IS
instance, the locator name is an empty string. When an IS-IS instance is
configured to use an SRv6 locator, the locator name stores the name of
the selected locator.
Subsequent commits will add the possibility to set and unset an SRv6
locator for a specific IS-IS instance.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Add Maximum SRv6 SID Depths (MSDs) parameters as per RFC 9352 section #4
to the per-area IS-IS SRv6 Data Base. Currently the MSD values are
hardcoded.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
`isis_srv6_area_term()` cleans up SRv6 information for a specific
IS-IS area. This commit adds a new function `isis_srv6_term()` that will
be used to perform global SRv6 cleanup.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
`isis_srv6_area_init()` initializes SRv6 information for a specific
IS-IS area. This commit adds a new function `isis_srv6_init()` that will
be used to perform global SRv6 initialization.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Add a boolean flag to indicate whether SRv6 is administratively enabled
on a given IS-IS area or not.
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Add `isis_srv6.c` and `isis_srv6.h` files needed to support SRv6 in IS-IS
(as per RFC 9352).
Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
