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| author | Ingo Molnar <mingo@kernel.org> | 2016-10-16 12:31:39 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-10-16 12:31:39 +0300 |
| commit | 1d33369db25eb7f37b7a8bd22d736888b4501a9c (patch) | |
| tree | 116d764339be1bca928870151decbedc53a9e1d1 /net/ipv4/igmp.c | |
| parent | 23446cb66c073b827779e5eb3dec301623299b32 (diff) | |
| parent | 1001354ca34179f3db924eb66672442a173147dc (diff) | |
| download | linux-1d33369db25eb7f37b7a8bd22d736888b4501a9c.tar.xz | |
Merge tag 'v4.9-rc1' into x86/urgent, to pick up updates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ipv4/igmp.c')
| -rw-r--r-- | net/ipv4/igmp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 9b4ca87f70ba..606cc3e85d2b 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -472,6 +472,15 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, continue; } + /* Based on RFC3376 5.1. Should not send source-list change + * records when there is a filter mode change. + */ + if (((gdeleted && pmc->sfmode == MCAST_EXCLUDE) || + (!gdeleted && pmc->crcount)) && + (type == IGMPV3_ALLOW_NEW_SOURCES || + type == IGMPV3_BLOCK_OLD_SOURCES) && psf->sf_crcount) + goto decrease_sf_crcount; + /* clear marks on query responses */ if (isquery) psf->sf_gsresp = 0; @@ -499,6 +508,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, scount++; stotal++; if ((type == IGMPV3_ALLOW_NEW_SOURCES || type == IGMPV3_BLOCK_OLD_SOURCES) && psf->sf_crcount) { +decrease_sf_crcount: psf->sf_crcount--; if ((sdeleted || gdeleted) && psf->sf_crcount == 0) { if (psf_prev) |