renamed openair-cn to openair3

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-10-06 16:53:42 +00:00
parent c7518ecf42
commit 7b5431a62c
705 changed files with 206 additions and 208 deletions
@@ -0,0 +1,134 @@
+/*******************************************************************************
+    OpenAirInterface
+    Copyright(c) 1999 - 2014 Eurecom
+
+    OpenAirInterface is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+
+    OpenAirInterface is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenAirInterface.The full GNU General Public License is
+   included in this distribution in the file called "COPYING". If not,
+   see <http://www.gnu.org/licenses/>.
+
+  Contact Information
+  OpenAirInterface Admin: openair_admin@eurecom.fr
+  OpenAirInterface Tech : openair_tech@eurecom.fr
+  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
+
+  Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
+
+ *******************************************************************************/
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "secu_defs.h"
+
+#include <openssl/aes.h>
+#include <openssl/cmac.h>
+#include <openssl/evp.h>
+
+// test
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+#include <openssl/bio.h>
+
+#include "assertions.h"
+#include "conversions.h"
+
+#define SECU_DEBUG
+
+/*!
+ * @brief Create integrity cmac t for a given message.
+ * @param[in] stream_cipher Structure containing various variables to setup encoding
+ * @param[out] out For EIA2 the output string is 32 bits long
+ */
+int nas_stream_encrypt_eia2(nas_stream_cipher_t *stream_cipher, uint8_t out[4])
+{
+  uint8_t          *m            = NULL;
+  uint32_t          local_count;
+  size_t            size         = 4;
+  uint8_t           data[16];
+  CMAC_CTX         *cmac_ctx     = NULL;
+  const EVP_CIPHER *cipher       = EVP_aes_128_cbc();
+  uint32_t          zero_bit     = 0;
+  uint32_t          m_length;
+  int               ret;
+
+  DevAssert(stream_cipher != NULL);
+  DevAssert(stream_cipher->key != NULL);
+  DevAssert(stream_cipher->key_length > 0);
+  DevAssert(out != NULL);
+
+  memset(data, 0, 16);
+
+  zero_bit = stream_cipher->blength & 0x7;
+
+  m_length = stream_cipher->blength >> 3;
+
+  if (zero_bit > 0)
+    m_length += 1;
+
+  local_count = hton_int32(stream_cipher->count);
+
+  m = calloc(m_length + 8, sizeof(uint8_t));
+
+  memcpy(&m[0], &local_count, 4);
+  m[4] = ((stream_cipher->bearer & 0x1F) << 3) | ((stream_cipher->direction & 0x01) << 2);
+
+  memcpy(&m[8], stream_cipher->message, m_length);
+
+#if defined(SECU_DEBUG)
+  {
+    int i;
+    printf("Byte length: %u, Zero bits: %u\nm: ", m_length + 8, zero_bit);
+
+    for (i = 0; i < m_length + 8; i++)
+      printf("%02x", m[i]);
+
+    printf("\nKey:");
+
+    for (i = 0; i < stream_cipher->key_length; i++)
+      printf("%02x", stream_cipher->key[i]);
+
+    printf("\nMessage:");
+
+    for (i = 0; i < m_length; i++)
+      printf("%02x", stream_cipher->message[i]);
+
+    printf("\n");
+  }
+#endif
+
+  cmac_ctx = CMAC_CTX_new();
+  ret = CMAC_Init(cmac_ctx, stream_cipher->key, stream_cipher->key_length, cipher, NULL);
+  ret = CMAC_Update(cmac_ctx, m, m_length + 8);
+  CMAC_Final(cmac_ctx, data, &size);
+  CMAC_CTX_free(cmac_ctx);
+
+#if defined(SECU_DEBUG)
+  {
+    int i;
+    printf("out: ");
+
+    for (i = 0; i < size; i++)
+      printf("%02x", data[i]);
+
+    printf("\n");
+  }
+#endif
+
+  memcpy(out, data, 4);
+  free(m);
+
+  return 0;
+}