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-rw-r--r--lib/nexthop.c12
-rw-r--r--lib/nexthop.h6
2 files changed, 13 insertions, 5 deletions
diff --git a/lib/nexthop.c b/lib/nexthop.c
index d25b470277..474abee309 100644
--- a/lib/nexthop.c
+++ b/lib/nexthop.c
@@ -121,12 +121,17 @@ const char *nexthop_type_to_str(enum nexthop_types_t nh_type)
/*
* Check if the labels match for the 2 nexthops specified.
*/
-int nexthop_labels_match(struct nexthop *nh1, struct nexthop *nh2)
+int nexthop_labels_match(const struct nexthop *nh1, const struct nexthop *nh2)
{
- struct mpls_label_stack *nhl1, *nhl2;
+ const struct mpls_label_stack *nhl1, *nhl2;
nhl1 = nh1->nh_label;
nhl2 = nh2->nh_label;
+
+ /* No labels is a match */
+ if (!nhl1 && !nhl2)
+ return 1;
+
if (!nhl1 || !nhl2)
return 0;
@@ -212,7 +217,8 @@ bool nexthop_same(const struct nexthop *nh1, const struct nexthop *nh2)
break;
}
- return true;
+ /* Compare labels too (if present) */
+ return (!!nexthop_labels_match(nh1, nh2));
}
/* Update nexthop with label information. */
diff --git a/lib/nexthop.h b/lib/nexthop.h
index fd27ca207b..9cdb040fc4 100644
--- a/lib/nexthop.h
+++ b/lib/nexthop.h
@@ -143,10 +143,12 @@ extern bool nexthop_same(const struct nexthop *nh1, const struct nexthop *nh2);
extern const char *nexthop_type_to_str(enum nexthop_types_t nh_type);
extern int nexthop_same_no_recurse(const struct nexthop *next1,
const struct nexthop *next2);
-extern int nexthop_labels_match(struct nexthop *nh1, struct nexthop *nh2);
+extern int nexthop_labels_match(const struct nexthop *nh1,
+ const struct nexthop *nh2);
extern int nexthop_same_firsthop(struct nexthop *next1, struct nexthop *next2);
-extern const char *nexthop2str(const struct nexthop *nexthop, char *str, int size);
+extern const char *nexthop2str(const struct nexthop *nexthop,
+ char *str, int size);
extern struct nexthop *nexthop_next(struct nexthop *nexthop);
extern unsigned int nexthop_level(struct nexthop *nexthop);