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Red Hat Bugzilla – Attachment 307093 Details for
Bug 231899
multicast incorrect handling
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[patch]
new test patch
linux-kernel-test.patch (text/plain), 881 bytes, created by
Neil Horman
on 2008-05-29 15:28:42 UTC
(
hide
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Description:
new test patch
Filename:
MIME Type:
Creator:
Neil Horman
Created:
2008-05-29 15:28:42 UTC
Size:
881 bytes
patch
obsolete
>diff -up linux-2.6.9/net/ipv4/igmp.c.orig linux-2.6.9/net/ipv4/igmp.c >--- linux-2.6.9/net/ipv4/igmp.c.orig 2008-05-29 10:46:30.000000000 -0400 >+++ linux-2.6.9/net/ipv4/igmp.c 2008-05-29 11:17:51.000000000 -0400 >@@ -2063,16 +2063,26 @@ int ip_mc_sf_allow(struct sock *sk, u32 > struct ip_sf_socklist *psl; > int i; > >+ if (loc_addr == INADDR_BROADCAST) >+ return 1; >+ > if (!MULTICAST(loc_addr)) > return 1; > > for (pmc=inet->mc_list; pmc; pmc=pmc->next) { > if (pmc->multi.imr_multiaddr.s_addr == loc_addr && >- pmc->multi.imr_ifindex == dif) >+ ((pmc->multi.imr_ifindex == dif) || >+ (pmc->multi.imr_address.s_addr == INADDR_ANY))) > break; > } >- if (!pmc) >- return 1; >+ if (!pmc) { >+ /* >+ * We aren't explicitly added to any mc group >+ * so don't deliver >+ */ >+ return 0; >+ } >+ > psl = pmc->sflist; > if (!psl) > return pmc->sfmode == MCAST_EXCLUDE;
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