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authorStephen Worley <sworley@cumulusnetworks.com>2019-04-02 19:57:48 +0200
committerStephen Worley <sworley@cumulusnetworks.com>2019-04-05 20:19:44 +0200
commit1b1fe1c4090ee98908f216d13af0c766df772714 (patch)
treefb1af35e4eba4aa381fcc4f20065168f3fe66202 /lib/nexthop_group.h
parentMerge pull request #4083 from donaldsharp/static_reinstall_nexthops (diff)
downloadfrr-1b1fe1c4090ee98908f216d13af0c766df772714.tar.xz
frr-1b1fe1c4090ee98908f216d13af0c766df772714.zip
lib: Add hash function for nexthop groups
Add a hash function to turn a nexthop group into a 32 bit unsigned hash key with jhash. We do not care to hash any recursively resolved nexthops, just the group. Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
Diffstat (limited to 'lib/nexthop_group.h')
-rw-r--r--lib/nexthop_group.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/nexthop_group.h b/lib/nexthop_group.h
index d96d0ab9f..f68033c20 100644
--- a/lib/nexthop_group.h
+++ b/lib/nexthop_group.h
@@ -47,6 +47,8 @@ void nexthop_del(struct nexthop_group *nhg, struct nexthop *nexthop);
void copy_nexthops(struct nexthop **tnh, const struct nexthop *nh,
struct nexthop *rparent);
+uint32_t nexthop_group_hash(const struct nexthop_group *nhg);
+
/* The following for loop allows to iterate over the nexthop
* structure of routes.
*