kern/174850: bxe driver does not receive multicasts

[Mike Karels]

>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 at 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: