X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=tests%2Ftest-csum.c;h=c74133a7f320fad2cc02e48427c8fa357888dea9;hb=003ce655b7116d18c86a74c50391e54990346931;hp=86de43095e9cb6605a664ce179b77e85dc4b92f1;hpb=e7b3e606b2f6054bc20518d64100ae501b3e6ef3;p=sliver-openvswitch.git

diff --git a/tests/test-csum.c b/tests/test-csum.c
index 86de43095..c74133a7f 100644
--- a/tests/test-csum.c
+++ b/tests/test-csum.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ * 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>
@@ -94,9 +96,12 @@ static void
 test_rfc1624(void)
 {
     /* "...an IP packet header in which a 16-bit field m = 0x5555..." */
-    uint8_t data[32] =
-        "\xfe\x8f\xc1\x14\x4b\x6f\x70\x2a\x80\x29\x78\xc0\x58\x81\x77\xaa"
-        "\x66\x64\xfc\x96\x63\x97\x64\xee\x12\x53\x1d\xa9\x2d\xa9\x55\x55";
+    uint8_t data[32] = {
+        0xfe, 0x8f, 0xc1, 0x14, 0x4b, 0x6f, 0x70, 0x2a,
+        0x80, 0x29, 0x78, 0xc0, 0x58, 0x81, 0x77, 0xaa,
+        0x66, 0x64, 0xfc, 0x96, 0x63, 0x97, 0x64, 0xee,
+        0x12, 0x53, 0x1d, 0xa9, 0x2d, 0xa9, 0x55, 0x55
+    };
 
     /* "...the one's complement sum of all other header octets is 0xCD7A." */
     assert(ntohs(csum(data, sizeof data - 2)) == 0xffff - 0xcd7a);
@@ -133,8 +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;
@@ -195,6 +239,7 @@ main(void)
     }
 
     test_rfc1624();
+    test_crc32c();
 
     /* Test recalc_csum16(). */
     for (i = 0; i < 32; i++) {
@@ -237,6 +282,6 @@ main(void)
     mark('#');
 
     putchar('\n');
-
-    return 0;
 }
+
+OVSTEST_REGISTER("test-csum", test_csum_main);