Author: rrs
Date: Sat Oct 18 15:53:31 2008
New Revision: 184027
URL: http://svn.freebsd.org/changeset/base/184027
Log:
Reported by Yehuda Weinraub ([EMAIL PROTECTED]) - CRC32C algorithm
uses incorrect init_bytes value. It SHOULD have the number
of bytes to get to a 4 byte boundary.
PR: 128134
MFC after: 4 weeks
Modified:
head/sys/netinet/sctp_crc32.c
Modified: head/sys/netinet/sctp_crc32.c
==============================================================================
--- head/sys/netinet/sctp_crc32.c Sat Oct 18 13:39:22 2008
(r184026)
+++ head/sys/netinet/sctp_crc32.c Sat Oct 18 15:53:31 2008
(r184027)
@@ -583,13 +583,13 @@ update_crc32(uint32_t crc32c,
unsigned char *buffer,
unsigned int length)
{
- uint32_t offset;
+ uint32_t to_even_word;
if (length == 0) {
return (crc32c);
}
- offset = ((uintptr_t) buffer) & 0x3;
- return (sctp_crc32c_sb8_64_bit(crc32c, buffer, length, offset));
+ to_even_word = (4 - (((uintptr_t) buffer) & 0x3));
+ return (sctp_crc32c_sb8_64_bit(crc32c, buffer, length, to_even_word));
}
uint32_t sctp_crc_c[256] = {
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