From af611f93aa5040acc606ed289a873bf1136831c2 Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Fri, 20 Jan 2023 15:55:47 +0100
Subject: BGP: Add received role value to role mismatch log message

---
 proto/bgp/bgp.c     |  2 +-
 proto/bgp/bgp.h     |  4 +---
 proto/bgp/packets.c | 10 ++++++++--
 3 files changed, 10 insertions(+), 6 deletions(-)

(limited to 'proto/bgp')

diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c
index f4098e04..2e442e16 100644
--- a/proto/bgp/bgp.c
+++ b/proto/bgp/bgp.c
@@ -2363,7 +2363,7 @@ bgp_show_afis(int code, char *s, u32 *afis, uint count)
   cli_msg(code, b.start);
 }
 
-static const char *
+const char *
 bgp_format_role_name(u8 role)
 {
   static const char *bgp_role_names[] = { "provider", "rs_server", "rs_client", "customer", "peer" };
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h
index ec802fde..2808d479 100644
--- a/proto/bgp/bgp.h
+++ b/proto/bgp/bgp.h
@@ -539,9 +539,7 @@ void bgp_refresh_begin(struct bgp_channel *c);
 void bgp_refresh_end(struct bgp_channel *c);
 void bgp_store_error(struct bgp_proto *p, struct bgp_conn *c, u8 class, u32 code);
 void bgp_stop(struct bgp_proto *p, int subcode, byte *data, uint len);
-
-struct rte_source *bgp_find_source(struct bgp_proto *p, u32 path_id);
-struct rte_source *bgp_get_source(struct bgp_proto *p, u32 path_id);
+const char *bgp_format_role_name(u8 role);
 
 static inline int
 rte_resolvable(rte *rt)
diff --git a/proto/bgp/packets.c b/proto/bgp/packets.c
index ddbc9226..16818cf3 100644
--- a/proto/bgp/packets.c
+++ b/proto/bgp/packets.c
@@ -908,10 +908,10 @@ bgp_rx_open(struct bgp_conn *conn, byte *pkt, uint len)
 	(local_role == BGP_ROLE_PROVIDER && neigh_role == BGP_ROLE_CUSTOMER) ||
 	(local_role == BGP_ROLE_RS_CLIENT && neigh_role == BGP_ROLE_RS_SERVER) ||
 	(local_role == BGP_ROLE_RS_SERVER && neigh_role == BGP_ROLE_RS_CLIENT)))
-  { bgp_error(conn, 2, 11, NULL, 0); return; }
+  { bgp_error(conn, 2, 11, &neigh_role, -1); return; }
 
   if ((p->cf->require_roles) && (neigh_role == BGP_ROLE_UNDEFINED))
-  { bgp_error(conn, 2, 11, NULL, 0); return; }
+  { bgp_error(conn, 2, 11, &neigh_role, -1); return; }
 
   /* Check the other connection */
   other = (conn == &p->outgoing_conn) ? &p->incoming_conn : &p->outgoing_conn;
@@ -3158,6 +3158,12 @@ bgp_log_error(struct bgp_proto *p, u8 class, char *msg, uint code, uint subcode,
 	  goto done;
 	}
 
+      if ((code == 2) && (subcode == 11) && (len == 1))
+        {
+	  t += bsprintf(t, " (%s)", bgp_format_role_name(get_u8(data)));
+	  goto done;
+        }
+
       /* RFC 8203 - shutdown communication */
       if (((code == 6) && ((subcode == 2) || (subcode == 4))))
 	if (bgp_handle_message(p, data, len, &t))
-- 
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