Changes since v5: - First part split into separate series (applied and present in Linus' git already). - Add nft_hook_find_ops_rcu() in patch 2 already to reduce size of patch 5. - New patch 4 to reduce size of patch 5. - New patch 6 preparing for patch 7 which in turn combines identical changes to both flowtables and netdev chains. Patches 1-5 prepare for and implement nf_hook_ops lists in nft_hook objects. This is crucial for wildcard interface specs and convenient with dynamic netdev hook registration upon NETDEV_REGISTER events. Patches 6-9 leverage the new infrastructure to correctly handle NETDEV_REGISTER and NETDEV_CHANGENAME events. Patch 10 prepares the code for non-NUL-terminated interface names passed by user space which resemble prefixes to match on. As a side-effect, hook allocation code becomes tolerant to non-matching interface specs. The final two patches implement netlink notifications for netdev add/remove events and add a kselftest. Phil Sutter (12): netfilter: nf_tables: Introduce functions freeing nft_hook objects netfilter: nf_tables: Introduce nft_hook_find_ops{,_rcu}() netfilter: nf_tables: Introduce nft_register_flowtable_ops() netfilter: nf_tables: Pass nf_hook_ops to nft_unregister_flowtable_hook() netfilter: nf_tables: Have a list of nf_hook_ops in nft_hook netfilter: nf_tables: Prepare for handling NETDEV_REGISTER events netfilter: nf_tables: Respect NETDEV_REGISTER events netfilter: nf_tables: Wrap netdev notifiers netfilter: nf_tables: Handle NETDEV_CHANGENAME events netfilter: nf_tables: Support wildcard netdev hook specs netfilter: nf_tables: Add notications for hook changes selftests: netfilter: Torture nftables netdev hooks include/linux/netfilter.h | 3 + include/net/netfilter/nf_tables.h | 12 +- include/uapi/linux/netfilter/nf_tables.h | 10 + net/netfilter/nf_tables_api.c | 394 ++++++++++++++---- net/netfilter/nf_tables_offload.c | 51 ++- net/netfilter/nft_chain_filter.c | 95 ++++- net/netfilter/nft_flow_offload.c | 2 +- .../testing/selftests/net/netfilter/Makefile | 1 + .../net/netfilter/nft_interface_stress.sh | 151 +++++++ 9 files changed, 587 insertions(+), 132 deletions(-) create mode 100755 tools/testing/selftests/net/netfilter/nft_interface_stress.sh -- 2.49.0