[PATCH net-next v2 00/13] genetlink: support per op type policies

[Jakub Kicinski <kuba@kernel.org>]

While writing new genetlink families I was increasingly annoyed by the fact
that we don't support different policies for do and dump callbacks.
This makes it hard to do proper input validation for dumps which usually
have a lot more narrow range of accepted attributes.

There is also a minor inconvenience of not supporting different per_doit
and post_doit callbacks per op.

This series addresses those problems by introducing another op format.

v2:
 - wait for net changes to propagate
 - restore the missing comment in patch 1
 - drop extra space in patch 3
 - improve commit message in patch 4
v1: https://lore.kernel.org/all/20221018230728.1039524-1-kuba@kernel.org/

Jakub Kicinski (13):
  genetlink: refactor the cmd <> policy mapping dump
  genetlink: move the private fields in struct genl_family
  genetlink: introduce split op representation
  genetlink: load policy based on validation flags
  genetlink: check for callback type at op load time
  genetlink: add policies for both doit and dumpit in
    ctrl_dumppolicy_start()
  genetlink: support split policies in ctrl_dumppolicy_put_op()
  genetlink: inline genl_get_cmd()
  genetlink: add iterator for walking family ops
  genetlink: use iterator in the op to policy map dumping
  genetlink: inline old iteration helpers
  genetlink: allow families to use split ops directly
  genetlink: convert control family to split ops

 include/net/genetlink.h   |  76 +++++-
 net/batman-adv/netlink.c  |   6 +-
 net/core/devlink.c        |   4 +-
 net/core/drop_monitor.c   |   4 +-
 net/ieee802154/nl802154.c |   6 +-
 net/netlink/genetlink.c   | 473 ++++++++++++++++++++++++++++----------
 net/wireless/nl80211.c    |   6 +-
 7 files changed, 433 insertions(+), 142 deletions(-)

-- 
2.38.1