diff options
| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-03-22 21:07:57 -0400 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-04-05 12:38:12 -0400 |
| commit | 850a9f99b8e4ba6e043a75c28d25c9cb092770c5 (patch) | |
| tree | 11bf752d7017eb0a5107873ea9ae9e8a77887edf /pimd/pim_mroute.c | |
| parent | 0e374d906d8934e6054a54906449f83a3deefd71 (diff) | |
pimd: Allow SPT switchover
This allows SPT switchover for S,G upon receipt of packets
on the LHR.
1) When we create a *,G from a IGMP Group Report, install
the *,G route with the pimreg device on the OIL.
2) When a packet hits the LHR that matches the *,G, we will
get a WHOLEPKT callback from the kernel and if we cannot
find the S,G, that means we have matched it on the LHR via
the *,G mroute. Create the S,G start the KAT and run
inherited_olist.
3) When the S,G times out, safely remove the S,G via
the KAT expiry
4) When the *,G is removed, remove any S,G associated
with it via the LHR flag.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'pimd/pim_mroute.c')
| -rw-r--r-- | pimd/pim_mroute.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/pimd/pim_mroute.c b/pimd/pim_mroute.c index 2fb243b9bd..cfbd07ede0 100644 --- a/pimd/pim_mroute.c +++ b/pimd/pim_mroute.c @@ -200,6 +200,23 @@ pim_mroute_msg_wholepkt (int fd, struct interface *ifp, const char *buf) up = pim_upstream_find(&sg); if (!up) { + struct prefix_sg star = sg; + star.src.s_addr = INADDR_ANY; + + up = pim_upstream_find(&star); + + if (up && PIM_UPSTREAM_FLAG_TEST_SRC_IGMP(up->flags)) + { + up = pim_upstream_add (&sg, ifp, PIM_UPSTREAM_FLAG_MASK_SRC_LHR, __PRETTY_FUNCTION__); + pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); + pim_upstream_inherited_olist (up); + pim_upstream_switch(up, PIM_UPSTREAM_JOINED); + + if (PIM_DEBUG_MROUTE) + zlog_debug ("%s: Creating %s upstream on LHR", + __PRETTY_FUNCTION__, up->sg_str); + return 0; + } if (PIM_DEBUG_MROUTE_DETAIL) { zlog_debug("%s: Unable to find upstream channel WHOLEPKT%s", __PRETTY_FUNCTION__, pim_str_sg_dump (&sg)); |