Date: Thu, 12 Feb 2009 18:02:46 +0000 (UTC) From: Randall Stewart <rrs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r188525 - in stable/7/sys: . netinet Message-ID: <200902121802.n1CI2ktB063039@svn.freebsd.org>
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Author: rrs Date: Thu Feb 12 18:02:46 2009 New Revision: 188525 URL: http://svn.freebsd.org/changeset/base/188525 Log: MFC of 184027: Reported by Yehuda Weinraub (yehudasa@gamil.com) - CRC32C algorithm uses incorrect init_bytes value. It SHOULD have the number of bytes to get to a 4 byte boundary. PR: 128134 Modified: stable/7/sys/ (props changed) stable/7/sys/netinet/sctp_crc32.c Modified: stable/7/sys/netinet/sctp_crc32.c ============================================================================== --- stable/7/sys/netinet/sctp_crc32.c Thu Feb 12 17:57:28 2009 (r188524) +++ stable/7/sys/netinet/sctp_crc32.c Thu Feb 12 18:02:46 2009 (r188525) @@ -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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