From dca75fd7c207f0bfc627cb6b74a484da3b27e05f Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Sat, 13 Feb 2010 12:26:26 +0100
Subject: Removes phantom protocol from the pipe design.

It seems that by adding one pipe-specific exception to route
announcement code and by adding one argument to rt_notify() callback i
could completely eliminate the need for the phantom protocol instance
and therefore make the code more straightforward. It will also fix some
minor bugs (like ignoring debug flag changes from the command line).
---
 proto/ospf/ospf.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'proto/ospf')

diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index d2ceab2..26a05d9 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -78,7 +78,7 @@
 
 
 static int ospf_reload_routes(struct proto *p);
-static void ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old UNUSED, ea_list * attrs);
+static void ospf_rt_notify(struct proto *p, struct rtable *table UNUSED, net * n, rte * new, rte * old UNUSED, ea_list * attrs);
 static void ospf_ifa_notify(struct proto *p, unsigned flags, struct ifa *a);
 static int ospf_rte_better(struct rte *new, struct rte *old);
 static int ospf_rte_same(struct rte *new, struct rte *old);
@@ -484,8 +484,7 @@ ospf_shutdown(struct proto *p)
 }
 
 static void
-ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old UNUSED,
-	       ea_list * attrs)
+ospf_rt_notify(struct proto *p, rtable *tbl UNUSED, net * n, rte * new, rte * old UNUSED, ea_list * attrs)
 {
   struct proto_ospf *po = (struct proto_ospf *) p;
 
-- 
cgit v1.2.3


From e81b440f6878605edd19ed62441648ac71260881 Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Sun, 21 Feb 2010 14:34:53 +0100
Subject: Fix configure to enable warnings and fix most of them.

---
 proto/ospf/hello.c    | 12 ++++++------
 proto/ospf/lsalib.c   | 15 +++++++--------
 proto/ospf/lsalib.h   |  4 ++--
 proto/ospf/lsupd.c    |  9 +++------
 proto/ospf/neighbor.c |  3 +--
 proto/ospf/ospf.c     | 16 +++++++---------
 proto/ospf/ospf.h     |  5 +++--
 proto/ospf/packet.c   |  1 -
 proto/ospf/rt.c       |  6 +++---
 proto/ospf/topology.c | 11 +++++------
 10 files changed, 37 insertions(+), 45 deletions(-)

(limited to 'proto/ospf')

diff --git a/proto/ospf/hello.c b/proto/ospf/hello.c
index 738748d..2f3a8a8 100644
--- a/proto/ospf/hello.c
+++ b/proto/ospf/hello.c
@@ -48,8 +48,8 @@ ospf_hello_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa,
   struct proto_ospf *po = ifa->oa->po;
   struct proto *p = &po->proto;
   char *beg = "Bad OSPF HELLO packet from ", *rec = " received: ";
-  unsigned int size, i, twoway, oldpriority, eligible, peers;
-  u32 olddr, oldbdr, oldiface_id, tmp;
+  unsigned int size, i, twoway, eligible, peers;
+  u32 tmp;
   u32 *pnrid;
 
   size = ntohs(ps_i->length);
@@ -188,11 +188,11 @@ ospf_hello_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa,
   if (!twoway)
     ospf_neigh_sm(n, INM_1WAYREC);
 
-  olddr = n->dr;
-  oldbdr = n->bdr;
-  oldpriority = n->priority;
+  u32 olddr = n->dr;
+  u32 oldbdr = n->bdr;
+  u32 oldpriority = n->priority;
 #ifdef OSPFv3
-  oldiface_id = n->iface_id;
+  u32 oldiface_id = n->iface_id;
 #endif
 
   n->dr = ntohl(ps->dr);
diff --git a/proto/ospf/lsalib.c b/proto/ospf/lsalib.c
index ab63398..35f02dc 100644
--- a/proto/ospf/lsalib.c
+++ b/proto/ospf/lsalib.c
@@ -122,22 +122,22 @@ ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h)
 }
 
 void
-htonlsab(void *h, void *n, u16 type, u16 len)
+htonlsab(void *h, void *n, u16 len)
 {
   u32 *hid = h;
   u32 *nid = n;
-  int i;
+  unsigned i;
 
   for (i = 0; i < (len / sizeof(u32)); i++)
     nid[i] = htonl(hid[i]);
 }
 
 void
-ntohlsab(void *n, void *h, u16 type, u16 len)
+ntohlsab(void *n, void *h, u16 len)
 {
   u32 *nid = n;
   u32 *hid = h;
-  int i;
+  unsigned i;
 
   for (i = 0; i < (len / sizeof(u32)); i++)
     hid[i] = ntohl(nid[i]);
@@ -185,11 +185,10 @@ void
 lsasum_calculate(struct ospf_lsa_header *h, void *body)
 {
   u16 length = h->length;
-  u16 type = h->type;
 
   //  log(L_WARN "Checksum %R %R %d start (len %d)", h->id, h->rt, h->type, length);
   htonlsah(h, h);
-  htonlsab(body, body, type, length - sizeof(struct ospf_lsa_header));
+  htonlsab(body, body, length - sizeof(struct ospf_lsa_header));
 
   /*
   char buf[1024];
@@ -203,7 +202,7 @@ lsasum_calculate(struct ospf_lsa_header *h, void *body)
   //  log(L_WARN "Checksum result %4x", h->checksum);
 
   ntohlsah(h, h);
-  ntohlsab(body, body, type, length - sizeof(struct ospf_lsa_header));
+  ntohlsab(body, body, length - sizeof(struct ospf_lsa_header));
 }
 
 /*
@@ -325,7 +324,7 @@ lsa_validate_rt(struct ospf_lsa_header *lsa, struct ospf_lsa_rt *body)
 }
 
 static int
-lsa_validate_net(struct ospf_lsa_header *lsa, struct ospf_lsa_net *body)
+lsa_validate_net(struct ospf_lsa_header *lsa, struct ospf_lsa_net *body UNUSED)
 {
   if (lsa->length < (HDRLEN + sizeof(struct ospf_lsa_net)))
     return 0;
diff --git a/proto/ospf/lsalib.h b/proto/ospf/lsalib.h
index ed929be..a799de3 100644
--- a/proto/ospf/lsalib.h
+++ b/proto/ospf/lsalib.h
@@ -12,8 +12,8 @@
 
 void htonlsah(struct ospf_lsa_header *h, struct ospf_lsa_header *n);
 void ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h);
-void htonlsab(void *h, void *n, u16 type, u16 len);
-void ntohlsab(void *n, void *h, u16 type, u16 len);
+void htonlsab(void *h, void *n, u16 len);
+void ntohlsab(void *n, void *h, u16 len);
 void lsasum_calculate(struct ospf_lsa_header *header, void *body);
 u16 lsasum_check(struct ospf_lsa_header *h, void *body);
 #define CMP_NEWER 1
diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c
index 9bed374..628dca9 100644
--- a/proto/ospf/lsupd.c
+++ b/proto/ospf/lsupd.c
@@ -290,8 +290,7 @@ ospf_lsupd_flood(struct proto_ospf *po,
 	htonlsah(hh, lh);
 	help = (u8 *) (lh + 1);
 	en = ospf_hash_find_header(po->gr, domain, hh);
-	htonlsab(en->lsa_body, help, hh->type, hh->length
-		 - sizeof(struct ospf_lsa_header));
+	htonlsab(en->lsa_body, help, hh->length - sizeof(struct ospf_lsa_header));
       }
 
       len = sizeof(struct ospf_lsupd_packet) + ntohs(lh->length);
@@ -386,8 +385,7 @@ ospf_lsupd_send_list(struct ospf_neighbor *n, list * l)
     }
     htonlsah(&(en->lsa), pktpos);
     pktpos = pktpos + sizeof(struct ospf_lsa_header);
-    htonlsab(en->lsa_body, pktpos, en->lsa.type, en->lsa.length
-	     - sizeof(struct ospf_lsa_header));
+    htonlsab(en->lsa_body, pktpos, en->lsa.length - sizeof(struct ospf_lsa_header));
     pktpos = pktpos + en->lsa.length - sizeof(struct ospf_lsa_header);
     len += en->lsa.length;
     lsano++;
@@ -630,8 +628,7 @@ ospf_lsupd_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa,
 
       /* pg 144 (5d) */
       void *body = mb_alloc(p->pool, lsatmp.length - sizeof(struct ospf_lsa_header));
-      ntohlsab(lsa + 1, body, lsatmp.type,
-	       lsatmp.length - sizeof(struct ospf_lsa_header));
+      ntohlsab(lsa + 1, body, lsatmp.length - sizeof(struct ospf_lsa_header));
 
       /* We will do validation check after flooding and
 	 acknowledging given LSA to minimize problems
diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index 0411d48..13abc56 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -440,7 +440,6 @@ void
 bdr_election(struct ospf_iface *ifa)
 {
   struct proto_ospf *po = ifa->oa->po;
-  struct proto *p = &po->proto;
   u32 myid = po->router_id;
   struct ospf_neighbor *neigh, *ndr, *nbdr, me;
   int doadj;
@@ -632,7 +631,7 @@ static void
 rxmt_timer_hook(timer * timer)
 {
   struct ospf_neighbor *n = (struct ospf_neighbor *) timer->data;
-  struct proto *p = &n->ifa->oa->po->proto;
+  // struct proto *p = &n->ifa->oa->po->proto;
   struct top_hash_entry *en;
 
   DBG("%s: RXMT timer fired on interface %s for neigh: %I.\n",
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index 26a05d9..edca595 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -224,9 +224,11 @@ ospf_dump(struct proto *p)
     }
   }
 
+  /*
   OSPF_TRACE(D_EVENTS, "LSA graph dump start:");
   ospf_top_dump(po->gr, p);
   OSPF_TRACE(D_EVENTS, "LSA graph dump finished");
+  */
   neigh_dump_all();
 }
 
@@ -500,7 +502,7 @@ ospf_rt_notify(struct proto *p, rtable *tbl UNUSED, net * n, rte * new, rte * ol
 }
 
 static void
-ospf_ifa_notify(struct proto *p, unsigned flags, struct ifa *a)
+ospf_ifa_notify(struct proto *p, unsigned flags UNUSED, struct ifa *a)
 {
   struct proto_ospf *po = (struct proto_ospf *) p;
   struct ospf_iface *ifa;
@@ -915,7 +917,7 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
 void
 ospf_sh_neigh(struct proto *p, char *iff)
 {
-  struct ospf_iface *ifa = NULL, *f;
+  struct ospf_iface *ifa = NULL;
   struct ospf_neighbor *n;
   struct proto_ospf *po = (struct proto_ospf *) p;
 
@@ -1006,7 +1008,7 @@ void
 ospf_sh_iface(struct proto *p, char *iff)
 {
   struct proto_ospf *po = (struct proto_ospf *) p;
-  struct ospf_iface *ifa = NULL, *f;
+  struct ospf_iface *ifa = NULL;
 
   if (p->proto_state != PS_UP)
   {
@@ -1193,7 +1195,6 @@ show_lsa_network(struct top_hash_entry *he)
 static inline void
 show_lsa_sum_net(struct top_hash_entry *he)
 {
-  struct ospf_lsa_header *lsa = &(he->lsa);
   ip_addr ip;
   int pxlen;
 
@@ -1217,7 +1218,7 @@ show_lsa_sum_rt(struct top_hash_entry *he)
   u32 dst_rid, options;
 
 #ifdef OSPFv2
-  struct ospf_lsa_sum *ls = he->lsa_body;
+  //  struct ospf_lsa_sum *ls = he->lsa_body;
   dst_rid = he->lsa.id;
   options = 0;
 #else /* OSPFv3 */
@@ -1235,7 +1236,6 @@ show_lsa_external(struct top_hash_entry *he)
 {
   struct ospf_lsa_header *lsa = &(he->lsa);
   struct ospf_lsa_ext *ext = he->lsa_body;
-  struct ospf_lsa_ext_tos *et = (struct ospf_lsa_ext_tos *) (ext + 1);
   char str_via[STD_ADDRESS_P_LENGTH + 8] = "";
   char str_tag[16] = "";
   ip_addr ip, rt_fwaddr;
@@ -1493,8 +1493,6 @@ ospf_sh_lsadb(struct proto *p)
     
     if ((dscope != last_dscope) || (hea[i]->domain != last_domain))
     {
-      struct iface *ifa;
-
       cli_msg(-1017, "");
       switch (dscope)
       {
@@ -1506,7 +1504,7 @@ ospf_sh_lsadb(struct proto *p)
 	  break;
 #ifdef OSPFv3
 	case LSA_SCOPE_LINK:
-	  ifa = if_find_by_index(hea[i]->domain);
+	  struct iface *ifa = if_find_by_index(hea[i]->domain);
 	  cli_msg(-1017, "Link %s", (ifa != NULL) ? ifa->name : "?");
 	  break;
 #endif
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 17dc152..78b66ec 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -704,7 +704,7 @@ struct ospf_area
   struct top_hash_entry *pxr_lsa; /* Originated prefix LSA */
   list cand;			/* List of candidates for RT calc. */
   struct fib net_fib;		/* Networks to advertise or not */
-  int stub;
+  unsigned stub;
   int trcap;			/* Transit capability? */
   u32 options;			/* Optional features */
   struct proto_ospf *po;
@@ -781,13 +781,14 @@ void schedule_net_lsa(struct ospf_iface *ifa);
 #ifdef OSPFv3
 void schedule_link_lsa(struct ospf_iface *ifa);
 #else
-static inline void schedule_link_lsa(struct ospf_iface *ifa) {}
+static inline void schedule_link_lsa(struct ospf_iface *ifa UNUSED) {}
 #endif
 
 void ospf_sh_neigh(struct proto *p, char *iff);
 void ospf_sh(struct proto *p);
 void ospf_sh_iface(struct proto *p, char *iff);
 void ospf_sh_state(struct proto *p, int verbose);
+void ospf_sh_lsadb(struct proto *p);
 
 
 #define EA_OSPF_METRIC1	EA_CODE(EAP_OSPF, 0)
diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c
index ce9739e..ea5f7a8 100644
--- a/proto/ospf/packet.c
+++ b/proto/ospf/packet.c
@@ -14,7 +14,6 @@ void
 ospf_pkt_fill_hdr(struct ospf_iface *ifa, void *buf, u8 h_type)
 {
   struct proto_ospf *po = ifa->oa->po;
-  struct proto *p = &po->proto;
   struct ospf_packet *pkt;
 
   pkt = (struct ospf_packet *) buf;
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index c3ed19f..84e4725 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -226,7 +226,7 @@ process_prefixes(struct ospf_area *oa)
 static void
 ospf_rt_spfa_rtlinks(struct ospf_area *oa, struct top_hash_entry *act, struct top_hash_entry *en)
 {
-  struct proto *p = &oa->po->proto;
+  // struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
   orta nf;
   u32 i;
@@ -519,7 +519,7 @@ link_back(struct ospf_area *oa, struct top_hash_entry *en, struct top_hash_entry
 static void
 ospf_rt_sum_tr(struct ospf_area *oa)
 {
-  struct proto *p = &oa->po->proto;
+  // struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
   struct ospf_area *bb = po->backbone;
   ip_addr ip, abrip;
@@ -1077,8 +1077,8 @@ static int
 calc_next_hop(struct ospf_area *oa, struct top_hash_entry *en,
 	      struct top_hash_entry *par)
 {
+  // struct proto *p = &oa->po->proto;
   struct ospf_neighbor *neigh;
-  struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
   struct ospf_iface *ifa;
 
diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c
index 870c0bc..5470119 100644
--- a/proto/ospf/topology.c
+++ b/proto/ospf/topology.c
@@ -744,7 +744,7 @@ originate_sum_net_lsa(struct ospf_area *oa, struct fib_node *fn, int metric)
 }
 
 void
-originate_sum_rt_lsa(struct ospf_area *oa, struct fib_node *fn, int metric, u32 options)
+originate_sum_rt_lsa(struct ospf_area *oa, struct fib_node *fn, int metric, u32 options UNUSED)
 {
   struct proto_ospf *po = oa->po;
   struct proto *p = &po->proto;
@@ -899,7 +899,6 @@ originate_ext_lsa_body(net *n, rte *e, u16 *length, struct proto_ospf *po,
   u32 tag = ea_get_int(attrs, EA_OSPF_TAG, 0);
   int gw = 0;
   int size = sizeof(struct ospf_lsa_ext);
-  u32 *buf;
 
   if ((e->attrs->dest == RTD_ROUTER) &&
       !ipa_equal(e->attrs->gw, IPA_NONE) &&
@@ -927,7 +926,7 @@ originate_ext_lsa_body(net *n, rte *e, u16 *length, struct proto_ospf *po,
   ext->fwaddr = gw ? e->attrs->gw : IPA_NONE;
   ext->tag = tag;
 #else /* OSPFv3 */
-  buf = ext->rest;
+  u32 *buf = ext->rest;
   buf = put_ipv6_prefix(buf, n->n.prefix, n->n.pxlen, 0, 0);
 
   if (gw)
@@ -1017,7 +1016,6 @@ flush_ext_lsa(net *n, struct proto_ospf *po)
 {
   struct proto *p = &po->proto;
   struct fib_node *fn = &n->n;
-  struct ospf_area *oa;
   struct top_hash_entry *en;
 
   OSPF_TRACE(D_EVENTS, "Flushing AS-external-LSA for %I/%d",
@@ -1651,10 +1649,11 @@ ospf_hash_delete(struct top_graph *f, struct top_hash_entry *e)
   bug("ospf_hash_delete() called for invalid node");
 }
 
+/*
 static void
 ospf_dump_lsa(struct top_hash_entry *he, struct proto *p)
 {
-  /*
+
   struct ospf_lsa_rt *rt = NULL;
   struct ospf_lsa_rt_link *rr = NULL;
   struct ospf_lsa_net *ln = NULL;
@@ -1688,7 +1687,6 @@ ospf_dump_lsa(struct top_hash_entry *he, struct proto *p)
     default:
       break;
     }
-  */
 }
 
 void
@@ -1704,6 +1702,7 @@ ospf_top_dump(struct top_graph *f, struct proto *p)
       ospf_dump_lsa(e, p);
   }
 }
+*/
 
 /* This is very inefficient, please don't call it often */
 
-- 
cgit v1.2.3


From ff2857b03db854f99902766ad842aaa5fa29ec3c Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Fri, 26 Feb 2010 10:55:58 +0100
Subject: Many changes in (mainly) kernel syncers.

- BSD kernel syncer is now self-conscious and can learn alien routes
- important bugfix in BSD kernel syncer (crash after protocol restart)
- many minor changes and bugfixes in kernel syncers and neighbor cache
- direct protocol does not generate host and link local routes
- min_scope check is removed, all routes have SCOPE_UNIVERSE by default
- also fixes some remaining compiler warnings
---
 proto/ospf/ospf.c | 12 +++++-------
 proto/ospf/rt.c   |  6 +++---
 2 files changed, 8 insertions(+), 10 deletions(-)

(limited to 'proto/ospf')

diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index edca595..191aa45 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -1234,7 +1234,6 @@ show_lsa_sum_rt(struct top_hash_entry *he)
 static inline void
 show_lsa_external(struct top_hash_entry *he)
 {
-  struct ospf_lsa_header *lsa = &(he->lsa);
   struct ospf_lsa_ext *ext = he->lsa_body;
   char str_via[STD_ADDRESS_P_LENGTH + 8] = "";
   char str_tag[16] = "";
@@ -1245,7 +1244,7 @@ show_lsa_external(struct top_hash_entry *he)
   rt_metric = ext->metric & METRIC_MASK;
   ebit = ext->metric & LSA_EXT_EBIT;
 #ifdef OSPFv2
-  ip = ipa_and(ipa_from_u32(lsa->id), ext->netmask);
+  ip = ipa_and(ipa_from_u32(he->lsa.id), ext->netmask);
   pxlen = ipa_mklen(ext->netmask);
   rt_fwaddr = ext->fwaddr;
   rt_fwaddr_valid = !ipa_equal(rt_fwaddr, IPA_NONE);
@@ -1282,10 +1281,7 @@ show_lsa_external(struct top_hash_entry *he)
 static inline void
 show_lsa_prefix(struct top_hash_entry *he, struct ospf_lsa_header *olsa)
 {
-  struct ospf_lsa_header *lsa = &(he->lsa);
   struct ospf_lsa_prefix *px = he->lsa_body;
-  struct ospf_lsa_ext *ext = he->lsa_body;
-  char *msg;
   ip_addr pxa;
   int pxlen;
   u8 pxopts;
@@ -1504,8 +1500,10 @@ ospf_sh_lsadb(struct proto *p)
 	  break;
 #ifdef OSPFv3
 	case LSA_SCOPE_LINK:
-	  struct iface *ifa = if_find_by_index(hea[i]->domain);
-	  cli_msg(-1017, "Link %s", (ifa != NULL) ? ifa->name : "?");
+	  {
+	    struct iface *ifa = if_find_by_index(hea[i]->domain);
+	    cli_msg(-1017, "Link %s", (ifa != NULL) ? ifa->name : "?");
+	  }
 	  break;
 #endif
       }
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 84e4725..c856eea 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -170,7 +170,7 @@ static void
 process_prefixes(struct ospf_area *oa)
 {
   struct proto_ospf *po = oa->po;
-  struct proto *p = &po->proto;
+  // struct proto *p = &po->proto;
   struct top_hash_entry *en, *src;
   struct ospf_lsa_prefix *px;
   ip_addr pxa;
@@ -228,7 +228,6 @@ ospf_rt_spfa_rtlinks(struct ospf_area *oa, struct top_hash_entry *act, struct to
 {
   // struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
-  orta nf;
   u32 i;
 
   struct ospf_lsa_rt *rt = en->lsa_body;
@@ -249,6 +248,7 @@ ospf_rt_spfa_rtlinks(struct ospf_area *oa, struct top_hash_entry *act, struct to
 	   */
 	  DBG("\n");
 
+	  orta nf;
 	  nf.type = RTS_OSPF;
 	  nf.options = 0;
 	  nf.metric1 = act->dist + rtl->metric;
@@ -571,7 +571,7 @@ ospf_rt_sum_tr(struct ospf_area *oa)
       type = ORT_NET;
       re = (ort *) fib_find(&po->rtf, &ip, pxlen);
     }
-    else if (en->lsa.type == LSA_T_SUM_RT)
+    else // en->lsa.type == LSA_T_SUM_RT
     {
 #ifdef OSPFv2
       struct ospf_lsa_sum *ls = en->lsa_body;
-- 
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