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Correct multicast filter calculation.

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This commit is contained in:
mycroft 1994-10-09 21:19:04 +00:00
parent ee5cde2719
commit 4252ca6644
2 changed files with 12 additions and 12 deletions
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12
sys/arch/i386/isa/if_le.c
View File

@ -10,7 +10,7 @@
* of this software, nor does the author assume any responsibility
* for damages incurred with its use.
*
* $Id: if_le.c,v 1.11 1994/08/07 00:56:04 mycroft Exp $
* $Id: if_le.c,v 1.12 1994/10/09 21:19:04 mycroft Exp $
*/
#include "bpfilter.h"
@ -1219,11 +1219,11 @@ lesetladrf(ac, af)
for (len = sizeof(enm->enm_addrlo); --len >= 0;) {
c = *cp++;
for (i = 8; --i >= 0;) {
if (((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01)) {
crc <<= 1;
crc ^= 0x04c11db6 | 1;
if ((crc & 0x01) ^ (c & 0x01)) {
crc >>= 1;
crc ^= 0x6db88320 | 0x80000000;
} else
crc <<= 1;
crc >>= 1;
c >>= 1;
}
}
@ -1231,7 +1231,7 @@ lesetladrf(ac, af)
crc >>= 26;
/* Turn on the corresponding bit in the filter. */
af[crc >> 5] |= 1 << ((crc & 0x1f) ^ 24);
af[crc >> 5] |= 1 << ((crc & 0x1f) ^ 0);
ETHER_NEXT_MULTI(step, enm);
}

12
sys/dev/isa/if_le.c
View File

@ -10,7 +10,7 @@
* of this software, nor does the author assume any responsibility
* for damages incurred with its use.
*
* $Id: if_le.c,v 1.11 1994/08/07 00:56:04 mycroft Exp $
* $Id: if_le.c,v 1.12 1994/10/09 21:19:04 mycroft Exp $
*/
#include "bpfilter.h"
@ -1219,11 +1219,11 @@ lesetladrf(ac, af)
for (len = sizeof(enm->enm_addrlo); --len >= 0;) {
c = *cp++;
for (i = 8; --i >= 0;) {
if (((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01)) {
crc <<= 1;
crc ^= 0x04c11db6 | 1;
if ((crc & 0x01) ^ (c & 0x01)) {
crc >>= 1;
crc ^= 0x6db88320 | 0x80000000;
} else
crc <<= 1;
crc >>= 1;
c >>= 1;
}
}
@ -1231,7 +1231,7 @@ lesetladrf(ac, af)
crc >>= 26;
/* Turn on the corresponding bit in the filter. */
af[crc >> 5] |= 1 << ((crc & 0x1f) ^ 24);
af[crc >> 5] |= 1 << ((crc & 0x1f) ^ 0);
ETHER_NEXT_MULTI(step, enm);
}