[iptables PATCH 0/3] Extract nftnl_rule parsing code

[Phil Sutter <phil@nwl.cc>]

nft-shared.c was already oversized, upcoming enhancement of the
nftnl_rule parser will add to that. So prepare any further work in that
field by creating a common 'nft-ruleparse.c' source and one for each
family to hold all the parsing code (basically the stack below
nft_rule_to_iptables_command_state).

Collect the existing expression parsing callbacks in a new struct
nft_ruleparse_ops and add a pointer to it into nft_family_ops. This way
the callbacks may be static and the nft-ruleparse-<family>.c sources
only export their ops object.

This series does things somewhat gradually:

* First pull everything from nft-shared.c into nft-ruleparse.c (likewise
  with header files)
* Then perform the *_ops struct changes which should not have a
  functional implication
* Finally weed parsers from nft-<family>.c files into
  nft-ruleparse-<family>.c ones.

Phil Sutter (3):
  nft: Introduce nft-ruleparse.{c,h}
  nft: Extract rule parsing callbacks from nft_family_ops
  nft: ruleparse: Create family-specific source files

 iptables/Makefile.am            |    3 +
 iptables/nft-arp.c              |  139 +---
 iptables/nft-bridge.c           |  390 +---------
 iptables/nft-cache.h            |    2 +
 iptables/nft-ipv4.c             |  106 +--
 iptables/nft-ipv6.c             |   83 +--
 iptables/nft-ruleparse-arp.c    |  168 +++++
 iptables/nft-ruleparse-bridge.c |  422 +++++++++++
 iptables/nft-ruleparse-ipv4.c   |  135 ++++
 iptables/nft-ruleparse-ipv6.c   |  112 +++
 iptables/nft-ruleparse.c        | 1208 +++++++++++++++++++++++++++++++
 iptables/nft-ruleparse.h        |  138 ++++
 iptables/nft-shared.c           | 1190 ------------------------------
 iptables/nft-shared.h           |  115 +--
 14 files changed, 2194 insertions(+), 2017 deletions(-)
 create mode 100644 iptables/nft-ruleparse-arp.c
 create mode 100644 iptables/nft-ruleparse-bridge.c
 create mode 100644 iptables/nft-ruleparse-ipv4.c
 create mode 100644 iptables/nft-ruleparse-ipv6.c
 create mode 100644 iptables/nft-ruleparse.c
 create mode 100644 iptables/nft-ruleparse.h

-- 
2.40.0