[PATCH v2 00/12] RFC: Improve forwarding data structure

[David Gibson <david@gibson.dropbear.id.au>]

This replaces the existing data structures storing forwarding
information, with new ones that can store more detailed and flexible
information,  Eventually we plan to allow dynamically updating this as well.

Patches 1, 2 & 8 could be merged (1 & 2 are the same as the the
earlier series with cleanups to the listening socket init functions).
The rest are just for early review.  Since I'm going to be away for
the next two weeks, no rush at all.

v2:
 * Remove preliminary patches already merged
 * Add several patches actually using the new data structure

David Gibson (12):
  tcp: Combine tcp_sock_init_one() and tcp_sock_init() into tcp_listen()
  udp: Rename udp_sock_init() to udp_listen() with small cleanups
  conf, fwd: Keep a table of our port forwarding configuration
  conf: Accurately record ifname and address for outbound forwards
  conf, fwd: Record "auto" port forwards in forwarding table
  tcp, udp: Make {tcp,udp}_listen() return socket fds
  fwd: Make space to store listening sockets in forward table
  ip: Add ipproto_name() function
  fwd, tcp, udp: Set up listening sockets based on forward table
  tcp, udp: Remove old auto-forwarding socket arrays
  fwd: Generate auto-forward exclusions from socket fd tables
  tcp: Remove unused tcp_epoll_ref

 conf.c | 125 +++++++++++++++++---------
 fwd.c  | 273 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 fwd.h  |  49 ++++++++++-
 ip.c   |  26 ++++++
 ip.h   |   2 +
 tcp.c  | 190 +++------------------------------------
 tcp.h  |  17 +---
 udp.c  | 140 ++---------------------------
 udp.h  |   8 +-
 9 files changed, 447 insertions(+), 383 deletions(-)

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2.52.0