[PATCH v4 0/4] sctp conntrack fixes

[Sriram Yagnaraman <sriram.yagnaraman@est.tech>]

A less diruptive change as opposed to below RFC patch:
https://lore.kernel.org/netfilter-devel/20230104113143.21769-1-sriram.yagnaraman@est.tech/

This contains a couple of bug fixes to existing bugs that were found
during the review of the above patch series, and also a patch that
unifies the ESTABLISHED states for primary and secondary paths.

Changes since v3:
- Set assured bit along with the existing check for old_state != new_state

Changes since v2:
- Remove UAPI changes for DATA_SENT since it is only part of 6.1-rc

Changes since v1:
- Reverted bff3d0534804: DATA_SENT state
- Set assured bit if new state is ESTABLISHED and direction is reply,
  regardless of the old state. Paths established by HEARTBEAT also gets
  the assured bit.
- Update nf_conntrack_sysctl documentation

Sriram Yagnaraman (4):
  netfilter: conntrack: fix vtag checks for ABORT/SHUTDOWN_COMPLETE
  netfilter: conntrack: fix bug in for_each_sctp_chunk
  Revert "netfilter: conntrack: add sctp DATA_SENT state"
  netfilter: conntrack: unify established states for SCTP paths

 .../networking/nf_conntrack-sysctl.rst        |  10 +-
 .../uapi/linux/netfilter/nf_conntrack_sctp.h  |   3 +-
 .../linux/netfilter/nfnetlink_cttimeout.h     |   3 +-
 net/netfilter/nf_conntrack_proto_sctp.c       | 170 ++++++++----------
 net/netfilter/nf_conntrack_standalone.c       |  16 --
 5 files changed, 77 insertions(+), 125 deletions(-)

-- 
2.34.1