Reorganize source tree to use single autotools instance

Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 317 insertions, 0 deletions

diff --git a/src/vppinfra/md5.c b/src/vppinfra/md5.c
new file mode 100644
index 00000000000..9ac1efc708d
--- /dev/null
+++ b/src/vppinfra/md5.c
@@ -0,0 +1,317 @@
+/*
+ * 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.
+ */
+/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm */
+
+/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+rights reserved.
+
+License to copy and use this software is granted provided that it
+is identified as the "RSA Data Security, Inc. MD5 Message-Digest
+Algorithm" in all material mentioning or referencing this software
+or this function.
+
+License is also granted to make and use derivative works provided
+that such works are identified as "derived from the RSA Data
+Security, Inc. MD5 Message-Digest Algorithm" in all material
+mentioning or referencing the derived work.
+
+RSA Data Security, Inc. makes no representations concerning either
+the merchantability of this software or the suitability of this
+software for any particular purpose. It is provided "as is"
+without express or implied warranty of any kind.
+
+These notices must be retained in any copies of any part of this
+documentation and/or software.
+ */
+
+#include <vppinfra/string.h>	/* for memset */
+#include <vppinfra/byte_order.h>
+#include <vppinfra/md5.h>
+
+/* F, G, H and I are basic MD5 functions. */
+#define F(b, c, d) (d ^ (b & (c ^ d)))
+#define G(b, c, d) F (d, b, c)
+#define H(b, c, d) (b ^ c ^ d)
+#define I(b, c, d) (c ^ (b | ~d))
+
+/* ROTATE_LEFT rotates x left n bits. */
+#define ROTATE_LEFT(x,n) \
+  (((x) << (n)) | ((x) >> (32 - (n))))
+
+/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
+   Rotation is separate from addition to prevent recomputation. */
+#define FF(a,b,c,d,x,s,ac)			\
+do {						\
+  a += F (b, c, d) + x + ac;			\
+  a = ROTATE_LEFT (a, s);			\
+  a += b;					\
+} while (0)
+
+#define GG(a,b,c,d,x,s,ac)			\
+do {						\
+  a += G (b, c, d) + x + ac;			\
+  a = ROTATE_LEFT (a, s);			\
+  a += b;					\
+} while (0)
+
+#define HH(a,b,c,d,x,s,ac)			\
+do {						\
+  a += H (b, c, d) + x + ac;			\
+  a = ROTATE_LEFT (a, s);			\
+  a += b;					\
+} while (0)
+
+#define II(a,b,c,d,x,s,ac)			\
+do {						\
+  a += I (b, c, d) + x + ac;			\
+  a = ROTATE_LEFT (a, s);			\
+  a += b;					\
+} while (0)
+
+#undef _
+
+/* MD5 basic transformation. Transforms state based on block. */
+static void
+md5_transform (md5_context_t * m, u32 * data, u32 * result, int zero_buffer)
+{
+  u32 a = m->state[0], b = m->state[1], c = m->state[2], d = m->state[3];
+  u32 *x = data;
+
+/* Constants for MD5Transform routine. */
+#define S11 7
+#define S12 12
+#define S13 17
+#define S14 22
+#define S21 5
+#define S22 9
+#define S23 14
+#define S24 20
+#define S31 4
+#define S32 11
+#define S33 16
+#define S34 23
+#define S41 6
+#define S42 10
+#define S43 15
+#define S44 21
+
+  /* Round 1 */
+  FF (a, b, c, d, clib_host_to_little_u32 (x[0]), S11, 0xd76aa478);	/* 1 */
+  FF (d, a, b, c, clib_host_to_little_u32 (x[1]), S12, 0xe8c7b756);	/* 2 */
+  FF (c, d, a, b, clib_host_to_little_u32 (x[2]), S13, 0x242070db);	/* 3 */
+  FF (b, c, d, a, clib_host_to_little_u32 (x[3]), S14, 0xc1bdceee);	/* 4 */
+  FF (a, b, c, d, clib_host_to_little_u32 (x[4]), S11, 0xf57c0faf);	/* 5 */
+  FF (d, a, b, c, clib_host_to_little_u32 (x[5]), S12, 0x4787c62a);	/* 6 */
+  FF (c, d, a, b, clib_host_to_little_u32 (x[6]), S13, 0xa8304613);	/* 7 */
+  FF (b, c, d, a, clib_host_to_little_u32 (x[7]), S14, 0xfd469501);	/* 8 */
+  FF (a, b, c, d, clib_host_to_little_u32 (x[8]), S11, 0x698098d8);	/* 9 */
+  FF (d, a, b, c, clib_host_to_little_u32 (x[9]), S12, 0x8b44f7af);	/* 10 */
+  FF (c, d, a, b, clib_host_to_little_u32 (x[10]), S13, 0xffff5bb1);	/* 11 */
+  FF (b, c, d, a, clib_host_to_little_u32 (x[11]), S14, 0x895cd7be);	/* 12 */
+  FF (a, b, c, d, clib_host_to_little_u32 (x[12]), S11, 0x6b901122);	/* 13 */
+  FF (d, a, b, c, clib_host_to_little_u32 (x[13]), S12, 0xfd987193);	/* 14 */
+  FF (c, d, a, b, clib_host_to_little_u32 (x[14]), S13, 0xa679438e);	/* 15 */
+  FF (b, c, d, a, clib_host_to_little_u32 (x[15]), S14, 0x49b40821);	/* 16 */
+
+  /* Round 2 */
+  GG (a, b, c, d, x[1], S21, 0xf61e2562);	/* 17 */
+  GG (d, a, b, c, x[6], S22, 0xc040b340);	/* 18 */
+  GG (c, d, a, b, x[11], S23, 0x265e5a51);	/* 19 */
+  GG (b, c, d, a, x[0], S24, 0xe9b6c7aa);	/* 20 */
+  GG (a, b, c, d, x[5], S21, 0xd62f105d);	/* 21 */
+  GG (d, a, b, c, x[10], S22, 0x02441453);	/* 22 */
+  GG (c, d, a, b, x[15], S23, 0xd8a1e681);	/* 23 */
+  GG (b, c, d, a, x[4], S24, 0xe7d3fbc8);	/* 24 */
+  GG (a, b, c, d, x[9], S21, 0x21e1cde6);	/* 25 */
+  GG (d, a, b, c, x[14], S22, 0xc33707d6);	/* 26 */
+  GG (c, d, a, b, x[3], S23, 0xf4d50d87);	/* 27 */
+  GG (b, c, d, a, x[8], S24, 0x455a14ed);	/* 28 */
+  GG (a, b, c, d, x[13], S21, 0xa9e3e905);	/* 29 */
+  GG (d, a, b, c, x[2], S22, 0xfcefa3f8);	/* 30 */
+  GG (c, d, a, b, x[7], S23, 0x676f02d9);	/* 31 */
+  GG (b, c, d, a, x[12], S24, 0x8d2a4c8a);	/* 32 */
+
+  /* Round 3 */
+  HH (a, b, c, d, x[5], S31, 0xfffa3942);	/* 33 */
+  HH (d, a, b, c, x[8], S32, 0x8771f681);	/* 34 */
+  HH (c, d, a, b, x[11], S33, 0x6d9d6122);	/* 35 */
+  HH (b, c, d, a, x[14], S34, 0xfde5380c);	/* 36 */
+  HH (a, b, c, d, x[1], S31, 0xa4beea44);	/* 37 */
+  HH (d, a, b, c, x[4], S32, 0x4bdecfa9);	/* 38 */
+  HH (c, d, a, b, x[7], S33, 0xf6bb4b60);	/* 39 */
+  HH (b, c, d, a, x[10], S34, 0xbebfbc70);	/* 40 */
+  HH (a, b, c, d, x[13], S31, 0x289b7ec6);	/* 41 */
+  HH (d, a, b, c, x[0], S32, 0xeaa127fa);	/* 42 */
+  HH (c, d, a, b, x[3], S33, 0xd4ef3085);	/* 43 */
+  HH (b, c, d, a, x[6], S34, 0x04881d05);	/* 44 */
+  HH (a, b, c, d, x[9], S31, 0xd9d4d039);	/* 45 */
+  HH (d, a, b, c, x[12], S32, 0xe6db99e5);	/* 46 */
+  HH (c, d, a, b, x[15], S33, 0x1fa27cf8);	/* 47 */
+  HH (b, c, d, a, x[2], S34, 0xc4ac5665);	/* 48 */
+
+  /* Round 4 */
+  II (a, b, c, d, x[0], S41, 0xf4292244);	/* 49 */
+  II (d, a, b, c, x[7], S42, 0x432aff97);	/* 50 */
+  II (c, d, a, b, x[14], S43, 0xab9423a7);	/* 51 */
+  II (b, c, d, a, x[5], S44, 0xfc93a039);	/* 52 */
+  II (a, b, c, d, x[12], S41, 0x655b59c3);	/* 53 */
+  II (d, a, b, c, x[3], S42, 0x8f0ccc92);	/* 54 */
+  II (c, d, a, b, x[10], S43, 0xffeff47d);	/* 55 */
+  II (b, c, d, a, x[1], S44, 0x85845dd1);	/* 56 */
+  II (a, b, c, d, x[8], S41, 0x6fa87e4f);	/* 57 */
+  II (d, a, b, c, x[15], S42, 0xfe2ce6e0);	/* 58 */
+  II (c, d, a, b, x[6], S43, 0xa3014314);	/* 59 */
+  II (b, c, d, a, x[13], S44, 0x4e0811a1);	/* 60 */
+  II (a, b, c, d, x[4], S41, 0xf7537e82);	/* 61 */
+  II (d, a, b, c, x[11], S42, 0xbd3af235);	/* 62 */
+  II (c, d, a, b, x[2], S43, 0x2ad7d2bb);	/* 63 */
+  II (b, c, d, a, x[9], S44, 0xeb86d391);	/* 64 */
+
+  a += m->state[0];
+  b += m->state[1];
+  c += m->state[2];
+  d += m->state[3];
+
+  if (result)
+    {
+      result[0] = clib_host_to_little_u32 (a);
+      result[1] = clib_host_to_little_u32 (b);
+      result[2] = clib_host_to_little_u32 (c);
+      result[3] = clib_host_to_little_u32 (d);
+    }
+  else
+    {
+      m->state[0] = a;
+      m->state[1] = b;
+      m->state[2] = c;
+      m->state[3] = d;
+    }
+
+  /* Zero sensitive information. */
+  if (result)
+    memset (m, ~0, sizeof (m[0]));
+  else if (zero_buffer)
+    memset (m->input_buffer.b8, 0, sizeof (m->input_buffer));
+}
+
+/* MD5 initialization. Begins an MD5 operation, writing a new context. */
+void
+md5_init (md5_context_t * c)
+{
+  memset (c, 0, sizeof (c[0]));
+
+  /* Load magic initialization constants. */
+  c->state[0] = 0x67452301;
+  c->state[1] = 0xefcdab89;
+  c->state[2] = 0x98badcfe;
+  c->state[3] = 0x10325476;
+}
+
+always_inline void __attribute__ ((unused))
+md5_fill_buffer_aligned (md5_context_t * c, u32 * d32)
+{
+  int i;
+  for (i = 0; i < ARRAY_LEN (c->input_buffer.b32); i++)
+    c->input_buffer.b32[i] = d32[i];
+}
+
+/* MD5 block update operation. Continues an MD5 message-digest
+  operation, processing another message block, and updating the
+  context.
+ */
+void
+md5_add (md5_context_t * c, void *data, int data_bytes)
+{
+  u32 data_bytes_left;
+  void *d;
+
+  if (data_bytes == 0)
+    return;
+
+  d = data;
+  data_bytes_left = data_bytes;
+
+  if ((pointer_to_uword (d) % sizeof (u32)) == 0
+      && (c->n_bits % BITS (c->input_buffer)) == 0
+      && data_bytes >= sizeof (c->input_buffer))
+    {
+      int is_last_iteration;
+      /* Fast aligned version. */
+      do
+	{
+	  data_bytes_left -= sizeof (c->input_buffer);
+	  is_last_iteration = data_bytes_left < sizeof (c->input_buffer);
+	  md5_transform (c, d, /* result */ 0,	/* zero_buffer */
+			 is_last_iteration);
+	  d += sizeof (c->input_buffer);
+	}
+      while (!is_last_iteration);
+    }
+
+  /* Slow unaligned version. */
+  {
+    int bi;
+    u8 *d8 = d;
+
+    bi = (c->n_bits / BITS (u8)) % ARRAY_LEN (c->input_buffer.b8);
+
+    while (data_bytes_left > 0)
+      {
+	c->input_buffer.b8[bi] = d8[0];
+	data_bytes_left -= 1;
+	d8++;
+	bi++;
+	if (bi == ARRAY_LEN (c->input_buffer.b8))
+	  {
+	    bi = 0;
+	    md5_transform (c, c->input_buffer.b32,
+			   /* result */ 0,
+			   /* zero_buffer */ 1);
+	  }
+      }
+  }
+
+  c->n_bits += data_bytes * BITS (u8);
+}
+
+void
+md5_finish (md5_context_t * c, u8 * digest)
+{
+  u64 n_bits_save;
+  int bi, n_pad;
+  static u8 padding[sizeof (c->input_buffer)] = { 0x80, 0, };
+
+  n_bits_save = c->n_bits;
+  bi = (n_bits_save / BITS (u8)) % ARRAY_LEN (c->input_buffer.b8);
+
+  n_pad = sizeof (c->input_buffer) - (bi + sizeof (u64));
+  if (n_pad <= 0)
+    n_pad += sizeof (c->input_buffer);
+  md5_add (c, padding, n_pad);
+
+  c->input_buffer.b64[ARRAY_LEN (c->input_buffer.b64) - 1]
+    = clib_host_to_little_u64 (n_bits_save);
+
+  md5_transform (c, c->input_buffer.b32, (u32 *) digest,
+		 /* zero_buffer */ 1);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */