GBP V2

update the GBP plugin to implement the full NAT feature set of opflex agent

Change-Id: Ic06a039c889445ed0b9087fa1f292634192b0f8d
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>

1 files changed, 163 insertions, 0 deletions

diff --git a/src/plugins/gbp/gbp_contract.c b/src/plugins/gbp/gbp_contract.c
new file mode 100644
index 00000000000..71d8bcf4671
--- /dev/null
+++ b/src/plugins/gbp/gbp_contract.c
@@ -0,0 +1,163 @@
+/*
+ * gbp.h : Group Based Policy
+ *
+ * Copyright (c) 2018 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 <plugins/gbp/gbp.h>
+
+/**
+ * Single contract DB instance
+ */
+gbp_contract_db_t gbp_contract_db;
+
+void
+gbp_contract_update (epg_id_t src_epg, epg_id_t dst_epg, u32 acl_index)
+{
+  gbp_contract_key_t key = {
+    .gck_src = src_epg,
+    .gck_dst = dst_epg,
+  };
+
+  hash_set (gbp_contract_db.gc_hash, key.as_u64, acl_index);
+}
+
+void
+gbp_contract_delete (epg_id_t src_epg, epg_id_t dst_epg)
+{
+  gbp_contract_key_t key = {
+    .gck_src = src_epg,
+    .gck_dst = dst_epg,
+  };
+
+  hash_unset (gbp_contract_db.gc_hash, key.as_u64);
+}
+
+void
+gbp_contract_walk (gbp_contract_cb_t cb, void *ctx)
+{
+  gbp_contract_key_t key;
+  u32 acl_index;
+
+  /* *INDENT-OFF* */
+  hash_foreach(key.as_u64, acl_index, gbp_contract_db.gc_hash,
+  ({
+    gbp_contract_t gbpc = {
+      .gc_key = key,
+      .gc_acl_index = acl_index,
+    };
+
+    if (!cb(&gbpc, ctx))
+      break;
+  }));
+  /* *INDENT-ON* */
+}
+
+static clib_error_t *
+gbp_contract_cli (vlib_main_t * vm,
+		  unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+  epg_id_t src_epg_id = EPG_INVALID, dst_epg_id = EPG_INVALID;
+  u32 acl_index = ~0;
+  u8 add = 1;
+
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "add"))
+	add = 1;
+      else if (unformat (input, "del"))
+	add = 0;
+      else if (unformat (input, "src-epg %d", &src_epg_id))
+	;
+      else if (unformat (input, "dst-epg %d", &dst_epg_id))
+	;
+      else if (unformat (input, "acl-index %d", &acl_index))
+	;
+      else
+	break;
+    }
+
+  if (EPG_INVALID == src_epg_id)
+    return clib_error_return (0, "Source EPG-ID must be specified");
+  if (EPG_INVALID == dst_epg_id)
+    return clib_error_return (0, "Destination EPG-ID must be specified");
+
+  if (add)
+    {
+      gbp_contract_update (src_epg_id, dst_epg_id, acl_index);
+    }
+  else
+    {
+      gbp_contract_delete (src_epg_id, dst_epg_id);
+    }
+
+  return (NULL);
+}
+
+/*?
+ * Configure a GBP Contract
+ *
+ * @cliexpar
+ * @cliexstart{set gbp contract [del] src-epg <ID> dst-epg <ID> acl-index <ACL>}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND (gbp_contract_cli_node, static) =
+{
+.path = "gbp contract",.short_help =
+    "gbp contract [del] src-epg <ID> dst-epg <ID> acl-index <ACL>",.function
+    = gbp_contract_cli,};
+/* *INDENT-ON* */
+
+static clib_error_t *
+gbp_contract_show (vlib_main_t * vm,
+		   unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+  gbp_contract_key_t key;
+  epg_id_t epg_id;
+
+  vlib_cli_output (vm, "Contracts:");
+
+  /* *INDENT-OFF* */
+  hash_foreach (key.as_u64, epg_id, gbp_contract_db.gc_hash,
+  {
+    vlib_cli_output (vm, "  {%d,%d} -> %d", key.gck_src,
+                     key.gck_dst, epg_id);
+  });
+  /* *INDENT-ON* */
+
+  return (NULL);
+}
+
+/*?
+ * Show Group Based Policy Contracts
+ *
+ * @cliexpar
+ * @cliexstart{show gbp contract}
+ * @cliexend
+ ?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (gbp_contract_show_node, static) = {
+  .path = "show gbp contract",
+  .short_help = "show gbp contract\n",
+  .function = gbp_contract_show,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */