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author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2018-07-13 12:16:43 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2018-07-13 14:21:16 -0700 |
commit | c921c2077b32081617789a645120148bc8b60c98 (patch) | |
tree | 532124740dbc9fba27b1d55bae50d34205cc115f /include/linux/mroute_base.h | |
parent | 430ac34de9693bfe4bea0bab830e0ca0be9ef4b9 (diff) | |
download | linux-stable-c921c2077b32081617789a645120148bc8b60c98.tar.gz linux-stable-c921c2077b32081617789a645120148bc8b60c98.tar.bz2 linux-stable-c921c2077b32081617789a645120148bc8b60c98.zip |
net: ipmr: add support for passing full packet on wrong vif
This patch adds support for IGMPMSG_WRVIFWHOLE which is used to pass
full packet and real vif id when the incoming interface is wrong.
While the RP and FHR are setting up state we need to be sending the
registers encapsulated with all the data inside otherwise we lose it.
The RP then decapsulates it and forwards it to the interested parties.
Currently with WRONGVIF we can only be sending empty register packets
and will lose that data.
This behaviour can be enabled by using MRT_PIM with
val == IGMPMSG_WRVIFWHOLE. This doesn't prevent IGMPMSG_WRONGVIF from
happening, it happens in addition to it, also it is controlled by the same
throttling parameters as WRONGVIF (i.e. 1 packet per 3 seconds currently).
Both messages are generated to keep backwards compatibily and avoid
breaking someone who was enabling MRT_PIM with val == 4, since any
positive val is accepted and treated the same.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mroute_base.h')
-rw-r--r-- | include/linux/mroute_base.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mroute_base.h b/include/linux/mroute_base.h index fd436cdd4725..6675b9f81979 100644 --- a/include/linux/mroute_base.h +++ b/include/linux/mroute_base.h @@ -254,6 +254,7 @@ struct mr_table { atomic_t cache_resolve_queue_len; bool mroute_do_assert; bool mroute_do_pim; + bool mroute_do_wrvifwhole; int mroute_reg_vif_num; }; |