Add nsh entry dump API

Change-Id: I6664c9929b8332eb8f4d7bc33f0f99b458a71908
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>

3 files changed, 105 insertions, 0 deletions

diff --git a/nsh-plugin/nsh/nsh.api b/nsh-plugin/nsh/nsh.api
index 67d04e2..ed9f2fd 100644
--- a/nsh-plugin/nsh/nsh.api
+++ b/nsh-plugin/nsh/nsh.api
@@ -40,6 +40,26 @@ define nsh_add_del_entry_reply {
     i32 retval;
 };
 
+
+define nsh_entry_dump {
+    u32 client_index;
+    u32 context;
+};
+
+define nsh_entry_details {
+    u32 context;
+    u32 nsp_nsi;
+    u8 md_type;
+    u8 ver_o_c;
+    u8 length;
+    u8 next_protocol;
+    u32 c1; 
+    u32 c2;
+    u32 c3; 
+    u32 c4;
+    u32 tlvs[0];
+};
+
 /** \brief Set or delete a mapping from one NSH header to another and its egress (decap to inner packet, encap NSH with outer header)
     @param client_index - opaque cookie to identify the sender
     @param context - sender context, to match reply w/ request
diff --git a/nsh-plugin/nsh/nsh.c b/nsh-plugin/nsh/nsh.c
index 3c30af7..3e0da8a 100644
--- a/nsh-plugin/nsh/nsh.c
+++ b/nsh-plugin/nsh/nsh.c
@@ -74,6 +74,7 @@
 
 #define foreach_nsh_plugin_api_msg		\
   _(NSH_ADD_DEL_ENTRY, nsh_add_del_entry)	\
+  _(NSH_ENTRY_DUMP, nsh_entry_dump)             \
   _(NSH_ADD_DEL_MAP, nsh_add_del_map)
 
 clib_error_t *
@@ -585,6 +586,49 @@ static void vl_api_nsh_add_del_entry_t_handler
   REPLY_MACRO(VL_API_NSH_ADD_DEL_ENTRY_REPLY);
 }
 
+static void send_nsh_entry_details
+(nsh_header_t * t, unix_shared_memory_queue_t * q, u32 context)
+{
+    vl_api_nsh_entry_details_t * rmp;
+
+    rmp = vl_msg_api_alloc (sizeof (*rmp));
+    memset (rmp, 0, sizeof (*rmp));
+
+    rmp->_vl_msg_id = ntohs(VL_API_NSH_ENTRY_DETAILS);
+    rmp->ver_o_c = t->ver_o_c;
+    rmp->length = t->length;
+    rmp->md_type = t->md_type;
+    rmp->next_protocol = t->next_protocol;
+    rmp->nsp_nsi = t->nsp_nsi;
+    rmp->c1 = t->c1;
+    rmp->c2 = t->c2;
+    rmp->c3 = t->c3;
+    rmp->c4 = t->c4;
+
+    rmp->context = context;
+
+    vl_msg_api_send_shmem (q, (u8 *)&rmp);
+}
+
+static void vl_api_nsh_entry_dump_t_handler
+(vl_api_nsh_entry_dump_t * mp)
+{
+    unix_shared_memory_queue_t * q;
+    nsh_main_t * nm = &nsh_main;
+    nsh_header_t * t;
+
+    q = vl_api_client_index_to_input_queue (mp->client_index);
+    if (q == 0) {
+        return;
+    }
+
+    pool_foreach (t, nm->nsh_entries,
+    ({
+	send_nsh_entry_details(t, q, mp->context);
+    }));
+}
+
+
 static clib_error_t *
 show_nsh_entry_command_fn (vlib_main_t * vm,
 			   unformat_input_t * input,
diff --git a/nsh-plugin/nsh/nsh_test.c b/nsh-plugin/nsh/nsh_test.c
index a2978d5..aaea522 100644
--- a/nsh-plugin/nsh/nsh_test.c
+++ b/nsh-plugin/nsh/nsh_test.c
@@ -83,6 +83,7 @@ foreach_standard_reply_retval_handler;
  */
 #define foreach_vpe_api_reply_msg                                       \
 _(NSH_ADD_DEL_ENTRY_REPLY, nsh_add_del_entry_reply)			\
+_(NSH_ENTRY_DETAILS, nsh_entry_details)                                 \
 _(NSH_ADD_DEL_MAP_REPLY, nsh_add_del_map_reply)
 
 
@@ -214,6 +215,45 @@ static int api_nsh_add_del_entry (vat_main_t * vam)
     W;
 }
 
+static void vl_api_nsh_entry_details_t_handler
+(vl_api_nsh_entry_details_t * mp)
+{
+    vat_main_t * vam = &vat_main;
+
+    fformat(vam->ofp, "%11d%11d%11d%11d%14d%14d%14d%14d%14d\n",
+            mp->ver_o_c,
+            mp->length,
+	    mp->md_type,
+	    mp->next_protocol,
+            ntohl(mp->nsp_nsi),
+	    ntohl(mp->c1),
+	    ntohl(mp->c2),
+	    ntohl(mp->c3),
+            ntohl(mp->c4));
+}
+
+static int api_nsh_entry_dump (vat_main_t * vam)
+{
+    nsh_test_main_t * sm = &nsh_test_main;
+    vl_api_nsh_entry_dump_t *mp;
+    f64 timeout;
+
+    if (!vam->json_output) {
+        fformat(vam->ofp, "%11s%11s%15s%14s%14s%13s%13s%13s%13s\n",
+                "ver_o_c", "length", "md_type", "next_protocol",
+                "nsp_nsi", "c1", "c2", "c3", "c4");
+    }
+
+    /* Get list of nsh entries */
+    M(NSH_ENTRY_DUMP, nsh_entry_dump);
+
+    /* send it... */
+    S;
+
+    /* Wait for a reply... */
+    W;
+}
+
 static int api_nsh_add_del_map (vat_main_t * vam)
 {
     nsh_test_main_t * sm = &nsh_test_main;
@@ -282,6 +322,7 @@ static int api_nsh_add_del_map (vat_main_t * vam)
  */
 #define foreach_vpe_api_msg \
 _(nsh_add_del_entry, "{nsp <nn> nsi <nn>} c1 <nn> c2 <nn> c3 <nn> c4 <nn> [md-type <nn>] [tlv <xx>] [del]") \
+_(nsh_entry_dump, "")   \
 _(nsh_add_del_map, "nsp <nn> nsi <nn> [del] map-nsp <nn> map-nsi <nn> [encap-gre-intf <nn> | encap-vxlan-gpe-intf <nn> | encap-none]")
 
 void vat_api_hookup (vat_main_t *vam)