From: Stephen Worley <sworley@nvidia.com>
Date: Mon, 5 Apr 2021 21:13:01 +0000 (-0400)
Subject: lib: add has_label function for nexthop groups
X-Git-Tag: base_9.0~402^2~42
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=78d106e1cbb0af335409f60ababe5a2649da9704;p=matthieu%2Ffrr.git

lib: add has_label function for nexthop groups

Add a function nexthop_group_has_label() for determining
if even a single nexthop in the group has a label on it.

Signed-off-by: Stephen Worley <sworley@nvidia.com>
---

diff --git a/lib/nexthop_group.c b/lib/nexthop_group.c
index 41fe64606b..44bddacd58 100644
--- a/lib/nexthop_group.c
+++ b/lib/nexthop_group.c
@@ -131,6 +131,18 @@ nexthop_group_active_nexthop_num_no_recurse(const struct nexthop_group *nhg)
 	return num;
 }
 
+bool nexthop_group_has_label(const struct nexthop_group *nhg)
+{
+	struct nexthop *nhop;
+
+	for (ALL_NEXTHOPS_PTR(nhg, nhop)) {
+		if (nhop->nh_label)
+			return true;
+	}
+
+	return false;
+}
+
 struct nexthop *nexthop_exists(const struct nexthop_group *nhg,
 			       const struct nexthop *nh)
 {
diff --git a/lib/nexthop_group.h b/lib/nexthop_group.h
index 0ea0b7c185..4d560fc438 100644
--- a/lib/nexthop_group.h
+++ b/lib/nexthop_group.h
@@ -170,6 +170,8 @@ nexthop_group_active_nexthop_num(const struct nexthop_group *nhg);
 extern uint8_t
 nexthop_group_active_nexthop_num_no_recurse(const struct nexthop_group *nhg);
 
+extern bool nexthop_group_has_label(const struct nexthop_group *nhg);
+
 #ifdef __cplusplus
 }
 #endif