1 files changed, 89 insertions, 0 deletions
diff --git a/src/vnet/srv6/sr_pt.h b/src/vnet/srv6/sr_pt.h
new file mode 100644
index 00000000000..53001e10ac7
--- /dev/null
+++ b/src/vnet/srv6/sr_pt.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright(c) 2022 Cisco Systems, Inc.
+ */
+
+/**
+ * @file
+ * @brief SR Path Tracing data structures definitions
+ *
+ */
+
+#ifndef included_vnet_sr_pt_h
+#define included_vnet_sr_pt_h
+
+#define IP6_HBH_PT_TYPE 50
+
+/*SR PT error codes*/
+#define SR_PT_ERR_NOENT		       -1 /* No such entry*/
+#define SR_PT_ERR_EXIST		       -2 /* Entry exists */
+#define SR_PT_ERR_IFACE_INVALID	       -3 /* IFACE invalid */
+#define SR_PT_ERR_ID_INVALID	       -4 /* ID invalid */
+#define SR_PT_ERR_LOAD_INVALID	       -5 /* LOAD invalid*/
+#define SR_PT_ERR_TTS_TEMPLATE_INVALID -6 /* TTS Template invalid */
+
+/*SR PT paramters max values*/
+#define SR_PT_ID_MAX	       4095
+#define SR_PT_LOAD_MAX	       15
+#define SR_PT_TTS_TEMPLATE_MAX 3
+
+/*SR PT TTS Templates*/
+#define SR_PT_TTS_TEMPLATE_0	   0
+#define SR_PT_TTS_TEMPLATE_1	   1
+#define SR_PT_TTS_TEMPLATE_2	   2
+#define SR_PT_TTS_TEMPLATE_3	   3
+#define SR_PT_TTS_TEMPLATE_DEFAULT 2
+
+/*SR PT TTS Template shift value*/
+#define SR_PT_TTS_SHIFT_TEMPLATE_0 8
+#define SR_PT_TTS_SHIFT_TEMPLATE_1 12
+#define SR_PT_TTS_SHIFT_TEMPLATE_2 16
+#define SR_PT_TTS_SHIFT_TEMPLATE_3 20
+
+/*PT node behaviors*/
+#define PT_BEHAVIOR_SRC 0
+#define PT_BEHAVIOR_MID 1
+#define PT_BEHAVIOR_SNK 2
+
+typedef struct
+{
+  u32 iface;	   /**< Interface */
+  u16 id;	   /**< Interface ID */
+  u8 ingress_load; /**< Interface Ingress Load */
+  u8 egress_load;  /**< Interface Egress Load */
+  u8 tts_template; /**< Interface TTS Template */
+} sr_pt_iface_t;
+
+typedef struct
+{
+  u16 oif_oil;
+  u8 tts;
+} __clib_packed sr_pt_cmd_t;
+
+typedef struct
+{
+  sr_pt_cmd_t cmd_stack[12];
+} __clib_packed ip6_hop_by_hop_option_pt_t;
+
+/**
+ * @brief SR Path Tracing main datastructure
+ */
+typedef struct
+{
+  /* Pool of sr_pt_iface instances */
+  sr_pt_iface_t *sr_pt_iface;
+
+  /* Hash table for sr_pt_iface parameters */
+  mhash_t sr_pt_iface_index_hash;
+
+  /* convenience */
+  u16 msg_id_base;
+} sr_pt_main_t;
+
+extern sr_pt_main_t sr_pt_main;
+extern vlib_node_registration_t sr_pt_node;
+extern int sr_pt_add_iface (u32 iface, u16 id, u8 ingress_load, u8 egress_load,
+			    u8 tts_template);
+extern int sr_pt_del_iface (u32 iface);
+extern void *sr_pt_find_iface (u32 iface);
+
+#endif /* included_vnet_sr_pt_h */
+\ No newline at end of file