isisd: add the 'redistribute table' internal support

The 'redistribute table' command does not create the internal
contexts with the appropriate table identifier.

Redistributed prefixes in IS-IS do not care about the
table identifier. Add a linked list of redistribution
contexts, and map the nb configuration to the linked list.

- A new 'table' attribute is added in the 'struct
isis_redist' context.
- The 'isis_redist_update_zebra_subscriptions()' function
is removed and is replaced by direct call to zebra API
for turning on/off redirection.
- The redistributed routes coming from zebra import the
'tableid' information.
- The fabricd redistribute running-config is reworked,
and the 'get_redist_settings()' function is removed.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/isisd/isis_zebra.h b/isisd/isis_zebra.h
index 045c75874..1dcd896d0 100644
--- a/isisd/isis_zebra.h
+++ b/isisd/isis_zebra.h
@@ -43,8 +43,10 @@ void isis_zebra_prefix_sid_uninstall(struct isis_area *area,
 				     struct isis_sr_psid_info *psid);
 void isis_zebra_send_adjacency_sid(int cmd, const struct sr_adjacency *sra);
 int isis_distribute_list_update(int routetype);
-void isis_zebra_redistribute_set(afi_t afi, int type, vrf_id_t vrf_id);
-void isis_zebra_redistribute_unset(afi_t afi, int type, vrf_id_t vrf_id);
+void isis_zebra_redistribute_set(afi_t afi, int type, vrf_id_t vrf_id,
+				 uint16_t tableid);
+void isis_zebra_redistribute_unset(afi_t afi, int type, vrf_id_t vrf_id,
+				   uint16_t tableid);
 int isis_zebra_rlfa_register(struct isis_spftree *spftree, struct rlfa *rlfa);
 void isis_zebra_rlfa_unregister_all(struct isis_spftree *spftree);
 bool isis_zebra_label_manager_ready(void);