1 files changed, 105 insertions, 0 deletions
diff --git a/vpp/app/vpe_cli.c b/vpp/app/vpe_cli.c
new file mode 100644
index 00000000000..23aa3cf7ba2
--- /dev/null
+++ b/vpp/app/vpe_cli.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2015 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.
+ */
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+
+typedef struct {
+    u8 mac_addr[6];
+} mac_addr_t;
+
+static clib_error_t *
+virtual_ip_cmd_fn_command_fn (vlib_main_t * vm,
+		 unformat_input_t * input,
+		 vlib_cli_command_t * cmd)
+{
+    unformat_input_t _line_input, * line_input = &_line_input;
+    vnet_main_t * vnm = vnet_get_main();
+    ip4_main_t * im = &ip4_main;
+    ip_lookup_main_t * lm = &im->lookup_main;
+    ip4_address_t ip_addr, next_hop;
+    u8 mac_addr[6];
+    mac_addr_t *mac_addrs = 0;
+    u32 sw_if_index;
+    u32 i, f;
+
+    /* Get a line of input. */
+    if (! unformat_user (input, unformat_line_input, line_input))
+        return 0;
+
+    if (!unformat(line_input, "%U %U", 
+                  unformat_ip4_address, &ip_addr,
+                  unformat_vnet_sw_interface, vnm, &sw_if_index))
+        goto barf;
+
+    while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) {
+	if (unformat (line_input, "mac %U", 
+                      unformat_ethernet_address, 
+                      &mac_addr))
+        {
+            mac_addr_t *ma;
+            vec_add2 (mac_addrs, ma, 1);
+            memcpy(ma, mac_addr, sizeof (mac_addr));
+        } else {
+        barf:
+	    return clib_error_return (0, "unknown input `%U'",
+				      format_unformat_error, input);
+        }
+    }
+    if (vec_len (mac_addrs) == 0)
+        goto barf;
+
+    /* Create / delete special interface route /32's */
+    next_hop.as_u32 = 0;
+
+    for (i = 0; i < vec_len(mac_addrs); i++) {
+        ip_adjacency_t adj;
+        u32 adj_index;
+        
+        adj.lookup_next_index = IP_LOOKUP_NEXT_REWRITE;
+        
+        vnet_rewrite_for_sw_interface
+            (vnm,
+             VNET_L3_PACKET_TYPE_IP4,
+             sw_if_index,
+             ip4_rewrite_node.index,
+             &mac_addrs[i],     /* destination address */
+             &adj.rewrite_header,
+             sizeof (adj.rewrite_data));
+
+        ip_add_adjacency (lm, &adj, 1 /* one adj */,
+                          &adj_index);
+        
+        f = (i + 1 < vec_len(mac_addrs)) ? IP4_ROUTE_FLAG_NOT_LAST_IN_GROUP : 0;
+        ip4_add_del_route_next_hop (im,
+                                    IP4_ROUTE_FLAG_ADD | f,
+                                    &ip_addr,
+                                    32 /* insert /32's */,
+                                    &next_hop,
+                                    sw_if_index,
+                                    1 /* weight */, 
+                                    adj_index, 
+                                    (u32)~0 /* explicit fib index */);
+    }
+
+    vec_free (mac_addrs);
+
+    return 0;
+}
+
+VLIB_CLI_COMMAND (virtual_ip_cmd_fn_command, static) = {
+    .path = "ip virtual",
+    .short_help = "ip virtual <addr> <interface> [mac <Mi>]+",
+    .function = virtual_ip_cmd_fn_command_fn,
+};