Date: Fri, 2 Jun 1995 12:50:01 -0700 From: mpp@legarto.minn.net To: freebsd-bugs Subject: kern/478: Multicast not supported on PPP interfaces Message-ID: <199506021950.MAA03466@freefall.cdrom.com> In-Reply-To: Your message of Fri, 2 Jun 1995 14:44:13 -0500 <199506021944.OAA00418@mpp.com>
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>Number: 478
>Category: kern
>Synopsis: Multicast not supported on PPP interfaces
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs (FreeBSD bugs mailing list)
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jun 2 12:50:00 1995
>Originator: Mike Pritchard
>Organization:
>Release: FreeBSD BUILT-19950525 i386
>Environment:
FreeBSD-current
>Description:
Multicast is not supported on PPP interfaces. It looks like
someone goofed when they checked in revision 1.4 of sys/net/if_ppp.c,
since it deleted the changes made in revision 1.3 to add the
multicast stuff.
>How-To-Repeat:
Run "ifconfig ppp0" and note that MULTICAST doesn't appear
as one of the flags.
>Fix:
Here is a patch that re-adds the multicast stuff that was previosly
in revision 1.3 of if_ppp.c. I think this is all that is needed,
but someone who knows more about this stuff should double
check and make sure.
*** orig/if_ppp.c Fri Jun 2 12:52:30 1995
--- if_ppp.c Fri Jun 2 14:09:12 1995
***************
*** 200,206 ****
sc->sc_if.if_name = "ppp";
sc->sc_if.if_unit = i++;
sc->sc_if.if_mtu = PPP_MTU;
! sc->sc_if.if_flags = IFF_POINTOPOINT;
sc->sc_if.if_type = IFT_PPP;
sc->sc_if.if_hdrlen = PPP_HDRLEN;
sc->sc_if.if_ioctl = pppioctl;
--- 200,206 ----
sc->sc_if.if_name = "ppp";
sc->sc_if.if_unit = i++;
sc->sc_if.if_mtu = PPP_MTU;
! sc->sc_if.if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
sc->sc_if.if_type = IFT_PPP;
sc->sc_if.if_hdrlen = PPP_HDRLEN;
sc->sc_if.if_ioctl = pppioctl;
***************
*** 1525,1530 ****
--- 1525,1542 ----
case SIOCGIFMTU:
ifr->ifr_mtu = sc->sc_if.if_mtu;
+ break;
+ case SIOCADDMULTI:
+ case SIOCDELMULTI:
+ switch(ifr->ifr_addr.sa_family) {
+ #ifdef INET
+ case AF_INET:
+ break;
+ #endif
+ default:
+ error = EAFNOSUPPORT;
+ break;
+ }
break;
default:
>Audit-Trail:
>Unformatted:
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