From de12e29bf35b1da51944c826beb34acf48d90289 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Wed, 7 Aug 2019 15:59:57 +0200 Subject: conntrack: support for IPS_OFFLOAD # conntrack -L -u OFFLOAD tcp 6 431984 ESTABLISHED src=192.168.10.2 dst=10.0.1.2 sport=32824 dport=5201 src=10.0.1.2 dst=10.0.1.1 sport=5201 dport=32824 [OFFLOAD] mark=0 secctx=null use=2 tcp 6 431984 ESTABLISHED src=192.168.10.2 dst=10.0.1.2 sport=32826 dport=5201 src=10.0.1.2 dst=10.0.1.1 sport=5201 dport=32826 [OFFLOAD] mark=0 secctx=null use=2 Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter/nf_conntrack_common.h | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h index 4cf003f..8023e5b 100644 --- a/include/linux/netfilter/nf_conntrack_common.h +++ b/include/linux/netfilter/nf_conntrack_common.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _NF_CONNTRACK_COMMON_H #define _NF_CONNTRACK_COMMON_H /* Connection state tracking for netfilter. This is separated from, @@ -28,12 +29,14 @@ enum ip_conntrack_info { /* only for userspace compatibility */ #ifndef __KERNEL__ IP_CT_NEW_REPLY = IP_CT_NUMBER, +#else + IP_CT_UNTRACKED = 7, #endif }; #define NF_CT_STATE_INVALID_BIT (1 << 0) #define NF_CT_STATE_BIT(ctinfo) (1 << ((ctinfo) % IP_CT_IS_REPLY + 1)) -#define NF_CT_STATE_UNTRACKED_BIT (1 << (IP_CT_NUMBER + 1)) +#define NF_CT_STATE_UNTRACKED_BIT (1 << 6) /* Bitset representing status of connection. */ enum ip_conntrack_status { @@ -90,13 +93,26 @@ enum ip_conntrack_status { IPS_TEMPLATE_BIT = 11, IPS_TEMPLATE = (1 << IPS_TEMPLATE_BIT), - /* Conntrack is a fake untracked entry */ + /* Conntrack is a fake untracked entry. Obsolete and not used anymore */ IPS_UNTRACKED_BIT = 12, IPS_UNTRACKED = (1 << IPS_UNTRACKED_BIT), /* Conntrack got a helper explicitly attached via CT target. */ IPS_HELPER_BIT = 13, IPS_HELPER = (1 << IPS_HELPER_BIT), + + /* Conntrack has been offloaded to flow table. */ + IPS_OFFLOAD_BIT = 14, + IPS_OFFLOAD = (1 << IPS_OFFLOAD_BIT), + + /* Be careful here, modifying these bits can make things messy, + * so don't let users modify them directly. + */ + IPS_UNCHANGEABLE_MASK = (IPS_NAT_DONE_MASK | IPS_NAT_MASK | + IPS_EXPECTED | IPS_CONFIRMED | IPS_DYING | + IPS_SEQ_ADJUST | IPS_TEMPLATE | IPS_OFFLOAD), + + __IPS_MAX_BIT = 15, }; /* Connection tracking event types */ @@ -113,6 +129,10 @@ enum ip_conntrack_events { IPCT_NATSEQADJ = IPCT_SEQADJ, IPCT_SECMARK, /* new security mark has been set */ IPCT_LABEL, /* new connlabel has been set */ + IPCT_SYNPROXY, /* synproxy has been set */ +#ifdef __KERNEL__ + __IPCT_MAX +#endif }; enum ip_conntrack_expect_events { -- cgit v1.2.3