[PATCHv4 net-next 0/2] route: add support and selftests for directed broadcast forwarding

[Xin Long <lucien.xin@gmail.com>]

Patch 1/2 is the feature and 2/2 is the selftest. Check the changelog
on each of them to know the details.

v1->v2:
  - fix a typo in changelog.
  - fix an uapi break that Davide noticed.
  - flush route cache when bc_forwarding is changed.
  - add the selftest for this patch as Ido's suggestion.

v2->v3:
  - fix an incorrect 'if check' in devinet_conf_proc as David Ahern
    noticed.
  - extend the selftest after one David Ahern fix for vrf.

v3->v4:
  - improve the output log in the selftest as David Ahern suggested.

Xin Long (2):
  route: add support for directed broadcast forwarding
  selftests: add a selftest for directed broadcast forwarding

 include/linux/inetdevice.h                         |   1 +
 include/uapi/linux/ip.h                            |   1 +
 include/uapi/linux/netconf.h                       |   1 +
 net/ipv4/devinet.c                                 |  11 +
 net/ipv4/route.c                                   |   6 +-
 .../selftests/net/forwarding/router_broadcast.sh   | 233 +++++++++++++++++++++
 6 files changed, 252 insertions(+), 1 deletion(-)
 create mode 100755 tools/testing/selftests/net/forwarding/router_broadcast.sh

-- 
2.1.0