Date: Thu, 11 May 1995 14:10:02 -0700 From: widmer@cisco.com To: freebsd-bugs Subject: i386/394: ip multicast in ep driver Message-ID: <199505112110.OAA13821@freefall.cdrom.com> In-Reply-To: Your message of Thu, 11 May 1995 14:04:09 -0700 <199505112104.OAA00764@lazy8.cisco.com>
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>Number: 394
>Category: i386
>Synopsis: IP multicast not supported by ep driver
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs (FreeBSD bugs mailing list)
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu May 11 14:10:01 1995
>Originator: Rob Widmer
>Organization:
Cisco Systems, Inc.
>Release: FreeBSD 2.0-RELEASE i386
>Environment:
PC with 3Com 3c509 Combo
>Description:
ep driver for 3c509 doesn't support IP multicast
>How-To-Repeat:
Try running sd using 3c509 gives error message
IP_ADD_MEMBERSHIP: Can't assign requested address
>Fix:
The following diff to /usr/src/sys/i386/isa/if_ep.c
*** 559,564 ****
--- 559,565 ----
ifp->if_name = "ep";
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS;
+ ifp->if_flags |= IFF_MULTICAST;
ifp->if_init = epinit;
ifp->if_output = ether_output;
ifp->if_start = epstart;
***************
*** 1336,1341 ****
--- 1337,1363 ----
ifp->if_mtu = ifr->ifr_mtu;
}
break;
+
+ case SIOCADDMULTI:
+ case SIOCDELMULTI:
+ /*
+ * Update our multicast listeners
+ */
+ if (cmd == SIOCADDMULTI) {
+ ether_addmulti(ifr, &sc->arpcom);
+ } else {
+ ether_delmulti(ifr, &sc->arpcom);
+ }
+
+ if (error == ENETRESET) {
+ /*
+ * Multicast list has changed; set the
+ * hardware filter accordingly
+ */
+ epreset(ifp->if_unit);
+ error = 0;
+ }
+ break;
default:
error = EINVAL;
>Audit-Trail:
>Unformatted:
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