![Krzysztof Piotr Oledzki](/assets/img/avatar_default.png)
Initially netfilter has had 64bit counters for conntrack-based accounting, but it was changed in 2.6.14 to save memory. Unfortunately in-kernel 64bit counters are still required, for example for "connbytes" extension. However, 64bit counters waste a lot of memory and it was not possible to enable/disable it runtime. This patch: - reimplements accounting with respect to the extension infrastructure, - makes one global version of seq_print_acct() instead of two seq_print_counters(), - makes it possible to enable it at boot time (for CONFIG_SYSCTL/CONFIG_SYSFS=n), - makes it possible to enable/disable it at runtime by sysctl or sysfs, - extends counters from 32bit to 64bit, - renames ip_conntrack_counter -> nf_conn_counter, - enables accounting code unconditionally (no longer depends on CONFIG_NF_CT_ACCT), - set initial accounting enable state based on CONFIG_NF_CT_ACCT - removes buggy IPCT_COUNTER_FILLING event handling. If accounting is enabled newly created connections get additional acct extend. Old connections are not changed as it is not possible to add a ct_extend area to confirmed conntrack. Accounting is performed for all connections with acct extend regardless of a current state of "net.netfilter.nf_conntrack_acct". Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
171 lines
3.4 KiB
C
171 lines
3.4 KiB
C
#ifndef _IPCONNTRACK_NETLINK_H
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#define _IPCONNTRACK_NETLINK_H
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#include <linux/netfilter/nfnetlink.h>
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enum cntl_msg_types {
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IPCTNL_MSG_CT_NEW,
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IPCTNL_MSG_CT_GET,
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IPCTNL_MSG_CT_DELETE,
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IPCTNL_MSG_CT_GET_CTRZERO,
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IPCTNL_MSG_MAX
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};
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enum ctnl_exp_msg_types {
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IPCTNL_MSG_EXP_NEW,
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IPCTNL_MSG_EXP_GET,
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IPCTNL_MSG_EXP_DELETE,
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IPCTNL_MSG_EXP_MAX
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};
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enum ctattr_type {
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CTA_UNSPEC,
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CTA_TUPLE_ORIG,
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CTA_TUPLE_REPLY,
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CTA_STATUS,
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CTA_PROTOINFO,
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CTA_HELP,
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CTA_NAT_SRC,
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#define CTA_NAT CTA_NAT_SRC /* backwards compatibility */
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CTA_TIMEOUT,
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CTA_MARK,
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CTA_COUNTERS_ORIG,
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CTA_COUNTERS_REPLY,
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CTA_USE,
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CTA_ID,
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CTA_NAT_DST,
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CTA_TUPLE_MASTER,
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CTA_NAT_SEQ_ADJ_ORIG,
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CTA_NAT_SEQ_ADJ_REPLY,
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CTA_SECMARK,
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__CTA_MAX
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};
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#define CTA_MAX (__CTA_MAX - 1)
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enum ctattr_tuple {
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CTA_TUPLE_UNSPEC,
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CTA_TUPLE_IP,
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CTA_TUPLE_PROTO,
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__CTA_TUPLE_MAX
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};
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#define CTA_TUPLE_MAX (__CTA_TUPLE_MAX - 1)
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enum ctattr_ip {
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CTA_IP_UNSPEC,
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CTA_IP_V4_SRC,
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CTA_IP_V4_DST,
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CTA_IP_V6_SRC,
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CTA_IP_V6_DST,
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__CTA_IP_MAX
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};
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#define CTA_IP_MAX (__CTA_IP_MAX - 1)
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enum ctattr_l4proto {
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CTA_PROTO_UNSPEC,
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CTA_PROTO_NUM,
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CTA_PROTO_SRC_PORT,
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CTA_PROTO_DST_PORT,
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CTA_PROTO_ICMP_ID,
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CTA_PROTO_ICMP_TYPE,
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CTA_PROTO_ICMP_CODE,
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CTA_PROTO_ICMPV6_ID,
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CTA_PROTO_ICMPV6_TYPE,
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CTA_PROTO_ICMPV6_CODE,
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__CTA_PROTO_MAX
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};
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#define CTA_PROTO_MAX (__CTA_PROTO_MAX - 1)
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enum ctattr_protoinfo {
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CTA_PROTOINFO_UNSPEC,
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CTA_PROTOINFO_TCP,
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CTA_PROTOINFO_DCCP,
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CTA_PROTOINFO_SCTP,
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__CTA_PROTOINFO_MAX
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};
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#define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)
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enum ctattr_protoinfo_tcp {
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CTA_PROTOINFO_TCP_UNSPEC,
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CTA_PROTOINFO_TCP_STATE,
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CTA_PROTOINFO_TCP_WSCALE_ORIGINAL,
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CTA_PROTOINFO_TCP_WSCALE_REPLY,
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CTA_PROTOINFO_TCP_FLAGS_ORIGINAL,
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CTA_PROTOINFO_TCP_FLAGS_REPLY,
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__CTA_PROTOINFO_TCP_MAX
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};
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#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
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enum ctattr_protoinfo_dccp {
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CTA_PROTOINFO_DCCP_UNSPEC,
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CTA_PROTOINFO_DCCP_STATE,
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__CTA_PROTOINFO_DCCP_MAX,
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};
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#define CTA_PROTOINFO_DCCP_MAX (__CTA_PROTOINFO_DCCP_MAX - 1)
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enum ctattr_protoinfo_sctp {
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CTA_PROTOINFO_SCTP_UNSPEC,
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CTA_PROTOINFO_SCTP_STATE,
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CTA_PROTOINFO_SCTP_VTAG_ORIGINAL,
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CTA_PROTOINFO_SCTP_VTAG_REPLY,
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__CTA_PROTOINFO_SCTP_MAX
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};
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#define CTA_PROTOINFO_SCTP_MAX (__CTA_PROTOINFO_SCTP_MAX - 1)
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enum ctattr_counters {
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CTA_COUNTERS_UNSPEC,
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CTA_COUNTERS_PACKETS, /* 64bit counters */
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CTA_COUNTERS_BYTES, /* 64bit counters */
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CTA_COUNTERS32_PACKETS, /* old 32bit counters, unused */
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CTA_COUNTERS32_BYTES, /* old 32bit counters, unused */
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__CTA_COUNTERS_MAX
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};
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#define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)
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enum ctattr_nat {
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CTA_NAT_UNSPEC,
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CTA_NAT_MINIP,
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CTA_NAT_MAXIP,
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CTA_NAT_PROTO,
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__CTA_NAT_MAX
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};
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#define CTA_NAT_MAX (__CTA_NAT_MAX - 1)
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enum ctattr_protonat {
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CTA_PROTONAT_UNSPEC,
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CTA_PROTONAT_PORT_MIN,
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CTA_PROTONAT_PORT_MAX,
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__CTA_PROTONAT_MAX
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};
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#define CTA_PROTONAT_MAX (__CTA_PROTONAT_MAX - 1)
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enum ctattr_natseq {
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CTA_NAT_SEQ_CORRECTION_POS,
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CTA_NAT_SEQ_OFFSET_BEFORE,
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CTA_NAT_SEQ_OFFSET_AFTER,
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__CTA_NAT_SEQ_MAX
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};
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#define CTA_NAT_SEQ_MAX (__CTA_NAT_SEQ_MAX - 1)
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enum ctattr_expect {
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CTA_EXPECT_UNSPEC,
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CTA_EXPECT_MASTER,
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CTA_EXPECT_TUPLE,
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CTA_EXPECT_MASK,
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CTA_EXPECT_TIMEOUT,
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CTA_EXPECT_ID,
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CTA_EXPECT_HELP_NAME,
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__CTA_EXPECT_MAX
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};
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#define CTA_EXPECT_MAX (__CTA_EXPECT_MAX - 1)
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enum ctattr_help {
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CTA_HELP_UNSPEC,
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CTA_HELP_NAME,
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__CTA_HELP_MAX
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};
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#define CTA_HELP_MAX (__CTA_HELP_MAX - 1)
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#endif /* _IPCONNTRACK_NETLINK_H */
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