From 0a1c6b5565e20167d1f1f33a5a8b597f420b18b0 Mon Sep 17 00:00:00 2001
From: Jordan Augé <jordan.auge+fdio@cisco.com>
Date: Fri, 26 Jul 2019 23:20:30 +0200
Subject: [HICN-252] Add per-application policy framework to hicn-light
 forwarder
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Change-Id: I0531cd7a7de179581295ae34766c81cd9cf3e172
Signed-off-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Co-authored-by: Mauro Sardara <msardara@cisco.com>
---
 hicn-light/src/hicn/config/controlRemovePolicy.c | 139 +++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 hicn-light/src/hicn/config/controlRemovePolicy.c

(limited to 'hicn-light/src/hicn/config/controlRemovePolicy.c')

diff --git a/hicn-light/src/hicn/config/controlRemovePolicy.c b/hicn-light/src/hicn/config/controlRemovePolicy.c
new file mode 100644
index 000000000..510203886
--- /dev/null
+++ b/hicn-light/src/hicn/config/controlRemovePolicy.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2017-2019 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.
+ */
+
+#ifdef WITH_POLICY
+
+#include <hicn/hicn-light/config.h>
+
+#include <ctype.h>
+#include <parc/algol/parc_List.h>
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_Network.h>
+#include <parc/assert/parc_Assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <hicn/utils/address.h>
+
+#include <hicn/config/controlRemovePolicy.h>
+
+#include <hicn/utils/commands.h>
+#include <hicn/utils/utils.h>
+
+static CommandReturn _controlRemovePolicy_Execute(CommandParser *parser,
+                                                 CommandOps *ops,
+                                                 PARCList *args);
+static CommandReturn _controlRemovePolicy_HelpExecute(CommandParser *parser,
+                                                     CommandOps *ops,
+                                                     PARCList *args);
+
+// ===================================================
+
+static const char *_commandRemovePolicy = "remove policy";
+static const char *_commandRemovePolicyHelp = "help remove policy";
+
+// ====================================================
+
+CommandOps *controlRemovePolicy_Create(ControlState *state) {
+  return commandOps_Create(state, _commandRemovePolicy, NULL,
+                           _controlRemovePolicy_Execute, commandOps_Destroy);
+}
+
+CommandOps *controlRemovePolicy_HelpCreate(ControlState *state) {
+  return commandOps_Create(state, _commandRemovePolicyHelp, NULL,
+                           _controlRemovePolicy_HelpExecute, commandOps_Destroy);
+}
+
+// ====================================================
+
+static CommandReturn _controlRemovePolicy_HelpExecute(CommandParser *parser,
+                                                     CommandOps *ops,
+                                                     PARCList *args) {
+  printf("commands:\n");
+  printf("    remove policy <prefix>\n");
+  return CommandReturn_Success;
+}
+
+static CommandReturn _controlRemovePolicy_Execute(CommandParser *parser,
+                                                 CommandOps *ops,
+                                                 PARCList *args) {
+  ControlState *state = ops->closure;
+
+  if (parcList_Size(args) != 3) {
+    _controlRemovePolicy_HelpExecute(parser, ops, args);
+    return CommandReturn_Failure;
+  }
+
+  const char *prefixStr = parcList_GetAtIndex(args, 2);
+  char *addr = (char *)malloc(sizeof(char) * (strlen(prefixStr) + 1));
+
+  // separate address and len
+  char *slash;
+  uint32_t len = 0;
+  strcpy(addr, prefixStr);
+  slash = strrchr(addr, '/');
+  if (slash != NULL) {
+    len = atoi(slash + 1);
+    *slash = '\0';
+  }
+
+  // allocate command payload
+  remove_policy_command *removePolicyCommand =
+      parcMemory_AllocateAndClear(sizeof(remove_policy_command));
+
+  // check and set IP address
+  if (inet_pton(AF_INET, addr, &removePolicyCommand->address.ipv4) == 1) {
+    if (len > 32) {
+      printf("ERROR: exceeded INET mask length, max=32\n");
+      parcMemory_Deallocate(&removePolicyCommand);
+      free(addr);
+      return CommandReturn_Failure;
+    }
+    removePolicyCommand->addressType = ADDR_INET;
+  } else if (inet_pton(AF_INET6, addr, &removePolicyCommand->address.ipv6) ==
+             1) {
+    if (len > 128) {
+      printf("ERROR: exceeded INET6 mask length, max=128\n");
+      parcMemory_Deallocate(&removePolicyCommand);
+      free(addr);
+      return CommandReturn_Failure;
+    }
+    removePolicyCommand->addressType = ADDR_INET6;
+  } else {
+    printf("Error: %s is not a valid network address \n", addr);
+    parcMemory_Deallocate(&removePolicyCommand);
+    free(addr);
+    return CommandReturn_Failure;
+  }
+
+  free(addr);
+  // Fill remaining payload fields
+  removePolicyCommand->len = len;
+
+  // send message and receive response
+  struct iovec *response = utils_SendRequest(
+      state, REMOVE_POLICY, removePolicyCommand, sizeof(remove_policy_command));
+
+  if (!response) {  // get NULL pointer
+    return CommandReturn_Failure;
+  }
+
+  parcMemory_Deallocate(&response);  // free iovec pointer
+  return CommandReturn_Success;
+}
+
+#endif /* WITH_POLICY */
-- 
cgit 1.2.3-korg