From 43d48ff9fe5e974d1643daddf5324220820952bb Mon Sep 17 00:00:00 2001
From: Maria Matejka <mq@ucw.cz>
Date: Fri, 10 May 2024 16:14:54 +0200
Subject: [PATCH] OSPF partial reload never worked properly, running full
 reload always

---
 proto/ospf/ospf.c |  5 +++--
 proto/ospf/ospf.h |  1 -
 proto/ospf/rt.c   | 15 +--------------
 3 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index ea6739da..77ff3f5f 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -436,8 +436,9 @@ static int
 ospf_reload_routes(struct channel *C, struct channel_import_request *cir)
 {
   struct ospf_proto *p = (struct ospf_proto *) C->proto;
-  cir->next = p->cir;
-  p->cir = cir;
+
+  if (cir)
+    CALL(cir->done, cir);
 
   if (p->calcrt == 2)
     return 1;
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 9314b4d3..91204667 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -219,7 +219,6 @@ struct ospf_proto
   slist lsal;			/* List of all LSA's */
   int calcrt;			/* Routing table calculation scheduled?
 				   0=no, 1=normal, 2=forced reload */
-  struct channel_import_request *cir; /* Struct with trie for partial reload */
   list iface_list;		/* List of OSPF interfaces (struct ospf_iface) */
   list area_list;		/* List of OSPF areas (struct ospf_area) */
   int areano;			/* Number of area I belong to */
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index a435119d..49b92ee7 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -1696,8 +1696,7 @@ ospf_rt_spf(struct ospf_proto *p)
   rt_sync(p);
   lp_flush(p->nhpool);
 
-  if (p->cir == NULL)	/* If there is no more cir waiting for reload */
-    p->calcrt = 0;
+  p->calcrt = 0;
 }
 
 
@@ -2022,16 +2021,11 @@ rt_sync(struct ospf_proto *p)
 
   OSPF_TRACE(D_EVENTS, "Starting routing table synchronization");
 
-  struct channel_import_request *cir = p->cir;
-  p->cir = NULL;
-
   DBG("Now syncing my rt table with nest's\n");
   FIB_ITERATE_INIT(&fit, fib);
 again1:
   FIB_ITERATE_START(fib, &fit, ort, nf)
   {
-    if (cir && !channel_import_request_prefilter(cir, nf->fn.addr))
-      continue;
     /* Sanity check of next-hop addresses, failure should not happen */
     if (nf->n.type && nf->n.nhs)
     {
@@ -2131,13 +2125,6 @@ again1:
   }
   FIB_ITERATE_END;
 
-  while(cir)
-  {
-    struct channel_import_request *next = cir->next;
-    cir->done(cir);
-    cir = next;
-  }
-
   WALK_LIST(oa, p->area_list)
   {
     /* Cleanup ASBR hash tables */