X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=tests%2Ftest-csum.c;h=c74133a7f320fad2cc02e48427c8fa357888dea9;hb=e379e4d167e31d1cd5f7b86fff091a2e09ff6e45;hp=b08f236f4120a30135136f84887c048cee641dab;hpb=8d32c1d34b235d08007c8cf5ab1d0eee139d9e47;p=sliver-openvswitch.git

diff --git a/tests/test-csum.c b/tests/test-csum.c
index b08f236f4..c74133a7f 100644
--- a/tests/test-csum.c
+++ b/tests/test-csum.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, 2011 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2014 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 
 #include <config.h>
 #include "csum.h"
+#include "crc32c.h"
 #include <inttypes.h>
 #include <netinet/in.h>
 #include <stdio.h>
@@ -24,6 +25,7 @@
 #include "random.h"
 #include "unaligned.h"
 #include "util.h"
+#include "ovstest.h"
 
 #undef NDEBUG
 #include <assert.h>
@@ -136,8 +138,47 @@ test_rfc1624(void)
     mark('#');
 }
 
-int
-main(void)
+/* CRC32C checksum tests, based on Intel IPPs, Chapter 13,
+ * ippsCRC32C_8u() example, found at the following location:
+ * http://software.intel.com/sites/products/documentation/hpc/ipp/ipps/ */
+static void
+test_crc32c(void)
+{
+    int i;
+    uint8_t data[48] = {
+        0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
+        0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x18,
+        0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    };
+
+    /* iSCSI Read PDU */
+    assert(ntohl(crc32c(data, 48)) == 0x563a96d9L);
+
+    /* 32 bytes of all zeroes */
+    for (i = 0; i < 32; i++) data[i] = 0x00;
+    assert(ntohl(crc32c(data, 32)) == 0xaa36918aL);
+
+    /* 32 bytes of all ones */
+    for (i = 0; i < 32; i++) data[i] = 0xff;
+    assert(ntohl(crc32c(data, 32)) == 0x43aba862L);
+
+    /* 32 bytes of incrementing 00..1f */
+    for (i = 0; i < 32; i++) data[i] = i;
+    assert(ntohl(crc32c(data, 32)) == 0x4e79dd46L);
+
+    /* 32 bytes of decrementing 1f..00 */
+    for (i  = 0; i < 32; i++) data[i] = 31 - i;
+    assert(ntohl(crc32c(data, 32)) == 0x5cdb3f11L);
+
+    mark('#');
+}
+
+
+static void
+test_csum_main(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
 {
     const struct test_case *tc;
     int i;
@@ -198,6 +239,7 @@ main(void)
     }
 
     test_rfc1624();
+    test_crc32c();
 
     /* Test recalc_csum16(). */
     for (i = 0; i < 32; i++) {
@@ -240,6 +282,6 @@ main(void)
     mark('#');
 
     putchar('\n');
-
-    return 0;
 }
+
+OVSTEST_REGISTER("test-csum", test_csum_main);