1 files changed, 91 insertions, 0 deletions
diff --git a/cicn-plugin/cicn/cicn_hello_inlines.h b/cicn-plugin/cicn/cicn_hello_inlines.h
new file mode 100644
index 00000000..c51bb7b0
--- /dev/null
+++ b/cicn-plugin/cicn/cicn_hello_inlines.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * cicn_hello_inlines.h - ICN hello protocol packet forwarding inlines
+ */
+
+#ifndef _CICN_HELLO_INLINES_H_
+#define _CICN_HELLO_INLINES_H_ 1
+
+#if !CICN_VPP_PLUGIN
+#error "cicn-internal file included externally"
+#endif
+
+#include "cicn.h"
+
+/*
+ * Is the supplied pkt_type/name a hello?
+ * Called from forwarding path, so performance sensitive
+ */
+static inline int
+cicn_hello_match (const cicn_face_db_entry_t * inface,
+		  u8 pkt_type, const u8 * nameptr, u32 namelen,
+		  const cicn_hello_name_t * hello_template, u64 * seq_num_res)
+{
+  const cicn_hello_fcd_t *fcd;
+  const u8 *in_fid_tlv;
+  u16 in_tlv_len;
+
+  switch (pkt_type)
+    {
+    case CICN_PKT_TYPE_CONTROL_REQUEST:
+      fcd = &inface->fe_ha_fcd_loc;	// request for our name
+      break;
+    case CICN_PKT_TYPE_CONTROL_REPLY:
+      fcd = &inface->fe_ha_fcd_nbr;	// reply to our request for nbr name
+      break;
+    default:
+      return (0);		// not a hello message
+    }
+
+  if (fcd->fcd_v_len == 0)
+    {				// name not currently initialized
+      return (0);
+    }
+
+  if (namelen != CICN_HELLO_NAME_TOT_FLEN)
+    {
+      return (0);
+    }
+  if (memcmp (nameptr, &inface->fe_ha_name_cmn[0],
+	      sizeof (inface->fe_ha_name_cmn)))
+    {
+      return (0);
+    }
+
+  in_fid_tlv = &nameptr[CICN_HELLO_NAME_CMN_FLEN];
+  C_GETINT16 (in_tlv_len, &in_fid_tlv[CICN_TLV_TYPE_LEN]);
+  if (in_tlv_len != fcd->fcd_v_len)
+    {
+      return (0);
+    }
+
+  if (memcmp (&in_fid_tlv[CICN_TLV_HDR_LEN], &fcd->fcd_v[0],
+	      fcd->fcd_v_len) != 0)
+    {
+      return (0);
+    }
+
+  if (seq_num_res)
+    {				/* Extract the seq num from the response */
+      u64 seq_num;
+      C_GETINT64 (seq_num, &nameptr[namelen - CICN_HELLO_NAME_SEQ_V_LEN]);
+      *seq_num_res = seq_num;
+    }
+
+  return (1);			// valid hello imsg/dmsg name for this face
+}
+
+#endif // _CICN_HELLO_INLINES_H_