Date: Sun, 30 Dec 2012 21:00:36 -0600 From: Mike Karels <mike_karels@mcafee.com> To: <FreeBSD-gnats-submit@FreeBSD.org> Subject: kern/174850: bxe driver does not receive multicasts Message-ID: <201212310300.qBV30aJ0051302@mcafee.com> Resent-Message-ID: <201212310310.qBV3A0HT048357@freefall.freebsd.org>
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>Number: 174850
>Category: kern
>Synopsis: bxe driver does not receive multicasts
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Dec 31 03:10:00 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Mike Karels
>Release: FreeBSD 10.0-CURRENT amd64
>Organization:
McAfee, Inc
>Environment:
System: FreeBSD freebsd-current.karels.net 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r244048: Sun Dec 9 18:48:31 UTC 2012 root@snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
Multicast filters do not work on the bxe driver.
Note: problem was found and fixed on a FreeBSD 8.2 derivative;
the patch compiles with -current.
>How-To-Repeat:
Run a program that expects to receive multicast; it only works
with promiscous or all-multicast mode.
>Fix:
Index: if_bxe.c
===================================================================
--- if_bxe.c (revision 244606)
+++ if_bxe.c (working copy)
@@ -14188,7 +14188,8 @@
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
- crc = ether_crc32_le(ifma->ifma_addr->sa_data,
+ crc = calculate_crc32c(0,
+ LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
ETHER_ADDR_LEN);
bit = (crc >> 24) & 0xff;
regidx = bit >> 5;
>Release-Note:
>Audit-Trail:
>Unformatted:
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