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2022-02-20netfilter: nf_tables_offload: incorrect flow offload action array sizePablo Neira Ayuso
immediate verdict expression needs to allocate one slot in the flow offload action array, however, immediate data expression does not need to do so. fwd and dup expression need to allocate one slot, this is missing. Add a new offload_action interface to report if this expression needs to allocate one slot in the flow offload action array. Fixes: be2861dc36d7 ("netfilter: nft_{fwd,dup}_netdev: add offload support") Reported-and-tested-by: Nick Gregory <Nick.Gregory@Sophos.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-01-27netfilter: nftables: add nft_parse_register_load() and use itPablo Neira Ayuso
This new function combines the netlink register attribute parser and the load validation function. This update requires to replace: enum nft_registers sreg:8; in many of the expression private areas otherwise compiler complains with: error: cannot take address of bit-field ‘sreg’ when passing the register field as reference. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-25netfilter: Add MODULE_DESCRIPTION entries to kernel modulesRob Gill
The user tool modinfo is used to get information on kernel modules, including a description where it is available. This patch adds a brief MODULE_DESCRIPTION to netfilter kernel modules (descriptions taken from Kconfig file or code comments) Signed-off-by: Rob Gill <rrobgill@protonmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-10netfilter: nft_{fwd,dup}_netdev: add offload supportPablo Neira Ayuso
This patch adds support for packet mirroring and redirection. The nft_fwd_dup_netdev_offload() function configures the flow_action object for the fwd and the dup actions. Extend nft_flow_rule_destroy() to release the net_device object when the flow_rule object is released, since nft_fwd_dup_netdev_offload() bumps the net_device reference counter. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: wenxu <wenxu@ucloud.cn>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-19netfilter: remove two unused variables.Weongyo Jeong
nft_dup_netdev_ingress_ops and nft_fwd_netdev_ingress_ops variables are no longer used at the code. Signed-off-by: Weongyo Jeong <weongyo.linux@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-01-03netfilter: nf_tables: add packet duplication to the netdev familyPablo Neira Ayuso
You can use this to duplicate packets and inject them at the egress path of the specified interface. This duplication allows you to inspect traffic from the dummy or any other interface dedicated to this purpose. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>