ipmr: support IP_PKTINFO on cache report IGMP msg

Browse source

[ Upstream commit bb7403655b ]

In order to support IP_PKTINFO on those packets, we need to call
ipv4_pktinfo_prepare.

When sending mrouted/pimd daemons a cache report IGMP msg, it is
unnecessary to set dst on the newly created skb.
It used to be necessary on older versions until
commit d826eb14ec ("ipv4: PKTINFO doesnt need dst reference") which
changed the way IP_PKTINFO struct is been retrieved.

Changes from v1:
1. Undo changes in ipv4_pktinfo_prepare function. use it directly
   and copy the control block.

Fixes: d826eb14ec ("ipv4: PKTINFO doesnt need dst reference")
Signed-off-by: Leone Fernando <leone4fernando@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Leone Fernando 2023-12-13 17:19:35 +01:00 • committed by Greg Kroah-Hartman

parent e0c6e96a96

commit 7d97858e21

1 changed files with 6 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

13

net/ipv4/ipmr.c

View file