1 files changed, 28 insertions, 0 deletions
diff --git a/src/caches/shibari_whitelist_add6.c b/src/caches/shibari_whitelist_add6.c
new file mode 100644
index 0000000..0c9e53a
--- /dev/null
+++ b/src/caches/shibari_whitelist_add6.c
@@ -0,0 +1,28 @@
+/* ISC license. */
+
+#include <stdint.h>
+
+#include <skalibs/uint64.h>
+#include <skalibs/genalloc.h>
+
+#include "shibari-internal.h"
+
+int shibari_whitelist_add6 (genalloc *g, char const *ip6, uint16_t mask)
+{
+  shibari_ip6_t shix ;
+  if (mask >= 64)
+  {
+    shix.mask0 = ~(uint64_t)0 ;
+    shix.mask1 = ((uint64_t)1 << (mask - 64)) - 1 ;
+  }
+  else
+  {
+    shix.mask0 = ((uint64_t)1 << mask) - 1 ;
+    shix.mask1 = 0 ;
+  }
+  uint64_unpack_big(ip6, &shix.addr0) ;
+  shix.addr0 &= shix.mask0 ;
+  uint64_unpack_big(ip6 + 8, &shix.addr1) ;
+  shix.addr1 &= shix.mask1 ;
+  return genalloc_append(shibari_ip6_t, g, &shix) ;
+}