pimd, pim6d: Don't set SRC_STREAM flag on LHR

Setup:
------
R1( LHR) ---------R2( RP) ----------R3( FHR)

Problem:
-------
- Send IGMP/MLD join and traffic.
  LHR: (S,G) mroute is created with reference count = 2
  and set the flag SRC_STREAM.
  (Code flow: pim_mroute_msg_wholepkt -> pim_upstream_add,
              pim_upstream_sg_running_proc -> pim_upstream_ref)
- Send IGMP/MLD prune.
  LHR: removes (*,G) entry and it tries to remove childen (S,G) entries.
       But (S,G) is having reference count = 2. So after prune,
       (S,G) entry reference count becomes 1 and will be present
       until KAT expires.

Fix:
---
Don't set SRC_STREAM flag for LHR.
In LHR, (S,G) should be maintained, until (*,G) is present.
When prune receives delete (*,G) and children (S,G).
When traffic stops, delete (S,G) after KAT expires.

Issue: #13893

Signed-off-by: Sarita Patra <saritap@vmware.com>

0 files changed, 0 insertions, 0 deletions