[PATCH v2 0/3] Fixes for spliced connections

[Stefano Brivio <sbrivio@redhat.com>]

The most pressing problem fixed here is that spliced connections with
a remapped destination port would be attempted on the wrong side. This
is an old issue as indicated by the Fixes: tag.

Patch 1/3 restores sanity in comments before we attempt to fix the
issue, patch 2/3 fixes the actual issue, and patch 3/3 introduces
a minor rework on top to fix another issue, where if the user
explicitly configures a loopback address in a port binding we would
still create a non-spliced socket stealing the related connections.

v2:
 - rewrite 2/3 with David's idea of using bit in epoll reference
 - rebase, and use IPV4_IS_LOOPBACK in tcp_conn_from_sock() too

Stefano Brivio (3):
  tcp, tcp_splice: Adjust comments to current meaning of inbound and
    outbound
  tcp, tcp_splice: Fix port remapping for inbound, spliced connections
  Don't create 'tap' socket for ports that are bound to loopback only

 tcp.c        | 192 +++++++++++++++++++++++++++++++--------------------
 tcp.h        |   2 +
 tcp_splice.c |  22 +++---
 util.h       |   3 +
 4 files changed, 137 insertions(+), 82 deletions(-)

-- 
2.35.1