Messages in this thread Patch in this message | | | Subject | [PATCH] 2.5.64 multicast: find interface correctly | Date | Sat, 08 Mar 2003 23:49:51 +0000 | From | Ted Phelps <> |
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Joining a multicast group (IP_ADD_MEMBERSHIP) with the imr_interface set to INADDR_ANY binds to the loopback interface. This differs from the 2.4 behavior and appears to be because ip_mc_find_dev() calls ip_route_output_key() with the interface address (0.0.0.0) rather than the multicast address (which 2.4 kernels use). The following patch reverts to the linux-2.4 behavior.
Thanks, -Ted
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--- linux-2.5.63/net/ipv4/igmp.c 2003-02-26 22:28:36.000000000 +0000 +++ linux-2.5.64/net/ipv4/igmp.c 2003-03-08 22:52:38.000000000 +0000 @@ -618,6 +618,7 @@ __dev_put(dev); } + fl.nl_u.ip4_u.daddr = imr->imr_multiaddr.s_addr; if (!dev && !ip_route_output_key(&rt, &fl)) { dev = rt->u.dst.dev; ip_rt_put(rt); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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