1 files changed, 95 insertions, 0 deletions
diff --git a/cicn-plugin/cicn/cicn_hello.h b/cicn-plugin/cicn/cicn_hello.h
new file mode 100644
index 00000000..d6a758d6
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+++ b/cicn-plugin/cicn/cicn_hello.h
@@ -0,0 +1,95 @@
+/*
+ * 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.h - ICN hello protocol operation
+ */
+
+#ifndef _CICN_HELLO_H_
+#define _CICN_HELLO_H_
+
+#if !CICN_VPP_PLUGIN
+#error "cicn-internal file included externally"
+#endif
+
+#include <vnet/ip/ip.h>
+
+#define CICN_HELLO_EVENT_DATA_RCVD 1
+
+    /* hash of the hello protocol name */
+#define CICN_HELLO_NAME_TEMPLATE "/local/adj/1234567890123456/12345678"
+#define CICN_HELLO_NAME_CMN_COMPS_FLEN 16	// "/local/adj"
+
+#define CICN_HELLO_NAME_FACEID_V_LEN 16
+#define CICN_HELLO_NAME_FACEID_FLEN \
+    (CICN_TLV_HDR_LEN + CICN_HELLO_NAME_FACEID_V_LEN)
+
+#define CICN_HELLO_NAME_SEQ_V_LEN 8
+#define CICN_HELLO_NAME_SEQ_FLEN (CICN_TLV_HDR_LEN + CICN_HELLO_NAME_SEQ_V_LEN)
+
+// match pkt name against common-prefix and faceid components
+#define CICN_HELLO_NAME_CMN_FLEN \
+    (CICN_TLV_HDR_LEN + CICN_HELLO_NAME_CMN_COMPS_FLEN)
+#define CICN_HELLO_NAME_TOT_FLEN					\
+    (CICN_TLV_HDR_LEN + CICN_HELLO_NAME_CMN_COMPS_FLEN +		\
+     CICN_HELLO_NAME_FACEID_FLEN + CICN_HELLO_NAME_SEQ_FLEN)
+
+/* The name struct of the ICN Hello Interests */
+typedef struct
+{
+  char hn_str[CICN_HELLO_NAME_TOT_FLEN];
+  u32 hn_wf_v_len;
+  u8 hn_wf[CICN_HELLO_NAME_TOT_FLEN + 10 /* slop */ ];
+} cicn_hello_name_t;
+
+typedef struct cicn_hello_fcd_t_
+{
+  u16 fcd_v_len;		// 0 if value not valid
+  u8 fcd_v[CICN_HELLO_NAME_FACEID_V_LEN];
+} cicn_hello_fcd_t;
+
+/* ICN Hello Adjacency struct (piggy-backs on face_cache_entry_t) */
+typedef struct
+{
+  int ha_swif;			// vpp swif, use as dummy RX for originated packets
+
+  /* Is this adjacency active? */
+  int active;
+
+  /* Last received seq num */
+  u64 last_received_seq_num;
+
+  /* Last sent seq num */
+  u64 last_sent_seq_num;
+} cicn_hello_adj_t;
+
+/*
+ * The data structure to pass to the background process through
+ * signaled event
+ */
+typedef struct
+{
+  u64 seq_num;
+  u32 faceid;
+} cicn_hello_data;
+
+clib_error_t *cicn_hello_adj_update (i32 faceid, int enable);
+
+u32 cicn_hello_periodic (vlib_main_t * vm, vlib_node_runtime_t * node);
+
+int cicn_hello_plugin_activation_init (vlib_main_t * vm);
+
+clib_error_t *cicn_hello_boot_init (vlib_main_t * vm);
+
+#endif // _CICN_HELLO_H_