summaryrefslogtreecommitdiffstats
path: root/src/spdk/intel-ipsec-mb/snow3g_iv.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/spdk/intel-ipsec-mb/snow3g_iv.c')
-rw-r--r--src/spdk/intel-ipsec-mb/snow3g_iv.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/src/spdk/intel-ipsec-mb/snow3g_iv.c b/src/spdk/intel-ipsec-mb/snow3g_iv.c
new file mode 100644
index 000000000..d1f48881c
--- /dev/null
+++ b/src/spdk/intel-ipsec-mb/snow3g_iv.c
@@ -0,0 +1,97 @@
+/*******************************************************************************
+ Copyright (c) 2019, Intel Corporation
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#include <string.h>
+
+#include "intel-ipsec-mb.h"
+#include "include/wireless_common.h"
+
+int
+snow3g_f8_iv_gen(const uint32_t count, const uint8_t bearer,
+ const uint8_t dir, void *iv_ptr)
+{
+ uint32_t *iv32 = (uint32_t *) iv_ptr;
+
+ if (iv_ptr == NULL)
+ return -1;
+
+ /* Bearer must contain 5 bits only */
+ if (bearer >= (1<<5))
+ return -1;
+
+ /* Direction must contain 1 bit only */
+ if (dir > 1)
+ return -1;
+ /**
+ * Parameters are passed in Little Endian format
+ * and reversed to generate the IV in Big Endian format
+ */
+ /* IV[3] = BEARER || DIRECTION || 0s */
+ iv32[3] = bswap4((bearer << 27) | (dir << 26));
+
+ /* IV[2] = COUNT */
+ iv32[2] = bswap4(count);
+
+ /* IV[1] = BEARER || DIRECTION || 0s */
+ iv32[1] = iv32[3];
+
+ /* IV[0] = COUNT */
+ iv32[0] = iv32[2];
+
+ return 0;
+}
+
+int
+snow3g_f9_iv_gen(const uint32_t count, const uint32_t fresh,
+ const uint8_t dir, void *iv_ptr)
+{
+ uint32_t *iv32 = (uint32_t *) iv_ptr;
+
+ if (iv_ptr == NULL)
+ return -1;
+
+ /* Direction must contain 1 bit only */
+ if (dir > 1)
+ return -1;
+ /**
+ * Parameters are passed in Little Endian format
+ * and reversed to generate the IV in Big Endian format
+ */
+ /* IV[3] = FRESH ^ (DIRECTION[0] << 17) */
+ iv32[3] = bswap4(fresh ^ (dir << 15));
+
+ /* IV[2] = DIRECTION[0] ^ COUNT[0-31] */
+ iv32[2] = bswap4(count ^ (dir << 31));
+
+ /* IV[1] = FRESH */
+ iv32[1] = bswap4(fresh);
+
+ /* IV[0] = COUNT */
+ iv32[0] = bswap4(count);
+
+ return 0;
+}