match: Add 'tun_md' member to struct minimatch.

struct match has had a 'tun_md' member for a long time, but struct
minimatch has never had one.  This doesn't matter for the purposes for
which minimatch is currently used, but it means that a minimatch is not
completely substitutable for a match and therefore blocks some new uses.
This patch adds the member.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Reviewed-by: Yifeng Sun <pkusunyifeng@gmail.com>
Reviewed-by: Armando Migliaccio <armamig@gmail.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/tun-metadata.c b/lib/tun-metadata.c
index c0d9180e0..f8a0e1952 100644
--- a/lib/tun-metadata.c
+++ b/lib/tun-metadata.c
@@ -924,3 +924,20 @@ tun_metadata_match_format(struct ds *s, const struct match *match)
         ds_put_char(s, ',');
     }
 }
+
+struct tun_metadata_allocation *
+tun_metadata_allocation_clone(const struct tun_metadata_allocation *src)
+{
+    return src && src->valid ? xmemdup(src, sizeof *src) : NULL;
+}
+
+void
+tun_metadata_allocation_copy(struct tun_metadata_allocation *dst,
+                             const struct tun_metadata_allocation *src)
+{
+    if (src && src->valid) {
+        *dst = *src;
+    } else {
+        memset(dst, 0, sizeof *dst);
+    }
+}