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Laura Garcia Liebana 3206caded8 netfilter: nft_hash: support of symmetric hash 
This patch provides symmetric hash support according to source
ip address and port, and destination ip address and port.

For this purpose, the __skb_get_hash_symmetric() is used to
identify the flow as it uses FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL
flag by default.

The new attribute NFTA_HASH_TYPE has been included to support
different types of hashing functions. Currently supported
NFT_HASH_JENKINS through jhash and NFT_HASH_SYM through symhash.

The main difference between both types are:
 - jhash requires an expression with sreg, symhash doesn't.
 - symhash supports modulus and offset, but not seed.

Examples:

 nft add rule ip nat prerouting ct mark set jhash ip saddr mod 2
 nft add rule ip nat prerouting ct mark set symhash mod 2

By default, jenkins hash will be used if no hash type is
provided for compatibility reasons.

Signed-off-by: Laura Garcia Liebana <laura.garcia@zevenet.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-06 17:57:42 +01:00
..
ipset
netfilter: ipset: Null pointer exception in ipset list:set
2017-02-19 19:08:47 +01:00
ipvs
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
core.c
netfilter: merge ctinfo into nfct pointer storage area
2017-02-02 14:31:56 +01:00
Kconfig
netfilter: nft_exthdr: add TCP option matching
2017-02-08 14:17:09 +01:00
Makefile
netfilter: nf_tables: add bitmap set type
2017-02-08 14:16:21 +01:00
nf_conntrack_acct.c
netfilter: Remove uses of seq_<foo> return values
2015-03-18 10:51:35 +01:00
nf_conntrack_amanda.c
net: Remove state argument from skb_find_text()
2015-02-22 15:59:54 -05:00
nf_conntrack_broadcast.c
…
nf_conntrack_core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-02-03 16:58:20 -05:00
nf_conntrack_ecache.c
netfilter: don't rely on DYING bit to detect when destroy event was sent
2016-08-30 11:43:08 +02:00
nf_conntrack_expect.c
netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value.
2017-02-26 17:06:59 +01:00
nf_conntrack_extend.c
netfilter: move nat hlist_head to nf_conn
2016-07-11 11:47:50 +02:00
nf_conntrack_ftp.c
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
nf_conntrack_h323_asn1.c
netfilter: nf_conntrack_h323: fix off-by-one in DecodeQ931
2016-07-11 12:32:45 +02:00
nf_conntrack_h323_main.c
netfilter: Remove explicit rcu_read_lock in nf_hook_slow
2016-09-24 21:29:53 +02:00
nf_conntrack_h323_types.c
…
nf_conntrack_helper.c
netfilter: nf_ct_helper: warn when not applying default helper assignment
2017-02-06 12:03:35 +01:00
nf_conntrack_irc.c
netfilter: Add helper array register/unregister functions
2016-07-21 02:31:53 +02:00
nf_conntrack_l3proto_generic.c
netfilter: Convert print_tuple functions to return void
2014-11-05 14:10:33 -05:00
nf_conntrack_labels.c
netfilter: connlabels: move set helper to xt_connlabel
2016-07-22 17:05:10 +02:00
nf_conntrack_netbios_ns.c
…
nf_conntrack_netlink.c
netfilter: ctnetlink: Fix regression in CTA_HELP processing
2017-02-06 12:49:05 +01:00
nf_conntrack_pptp.c
netfilter: conntrack: get rid of conntrack timer
2016-08-30 11:43:09 +02:00
nf_conntrack_proto_dccp.c
netfilter: conntrack: no need to pass ctinfo to error handler
2017-02-02 14:31:51 +01:00
nf_conntrack_proto_generic.c
netfilter: remove ip_conntrack* sysctl compat code
2016-08-13 13:27:13 +02:00
nf_conntrack_proto_gre.c
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
nf_conntrack_proto_sctp.c
netfilter: conntrack: no need to pass ctinfo to error handler
2017-02-02 14:31:51 +01:00
nf_conntrack_proto_tcp.c
netfilter: conntrack: no need to pass ctinfo to error handler
2017-02-02 14:31:51 +01:00
nf_conntrack_proto_udp.c
netfilter: conntrack: no need to pass ctinfo to error handler
2017-02-02 14:31:51 +01:00
nf_conntrack_proto.c
netfilter: conntrack: add nf_conntrack_default_on sysctl
2016-12-04 21:17:25 +01:00
nf_conntrack_sane.c
netfilter: Add helper array register/unregister functions
2016-07-21 02:31:53 +02:00
nf_conntrack_seqadj.c
netfilter: seqadj: Fix the wrong ack adjust for the RST packet without ack
2016-09-25 14:54:01 +02:00
nf_conntrack_sip.c
netfilter: nf_conntrack_sip: fix wrong memory initialisation
2017-03-03 13:48:31 +01:00
nf_conntrack_snmp.c
…
nf_conntrack_standalone.c
netfilter: merge ctinfo into nfct pointer storage area
2017-02-02 14:31:56 +01:00
nf_conntrack_tftp.c
netfilter: Add helper array register/unregister functions
2016-07-21 02:31:53 +02:00
nf_conntrack_timeout.c
netfilter: cttimeout: add netns support
2015-12-14 12:48:58 +01:00
nf_conntrack_timestamp.c
netfilter: nf_ct_timestamp: Fix BUG_ON after netns deletion
2013-12-20 14:58:29 +01:00
nf_dup_netdev.c
netfilter: add and use nf_fwd_netdev_egress
2016-12-06 21:48:22 +01:00
nf_internals.h
netfilter: merge nf_iterate() into nf_hook_slow()
2016-11-03 11:52:59 +01:00
nf_log_common.c
netfilter: nf_log: do not assume ethernet header in netdev family
2016-12-04 20:45:33 +01:00
nf_log_netdev.c
netfilter: nf_log: do not assume ethernet header in netdev family
2016-12-04 20:45:33 +01:00
nf_log.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2017-02-03 16:58:20 -05:00
nf_nat_amanda.c
…
nf_nat_core.c
netfilter: built-in NAT support for UDPlite
2016-12-04 20:45:32 +01:00
nf_nat_ftp.c
…
nf_nat_helper.c
skbuff: add and use skb_nfct helper
2017-02-02 14:31:53 +01:00
nf_nat_irc.c
netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
2014-01-06 14:17:17 +01:00
nf_nat_proto_common.c
netfilter: use IS_ENABLED() macro
2014-06-30 11:38:03 +02:00
nf_nat_proto_dccp.c
netfilter: built-in NAT support for DCCP
2016-12-04 20:45:30 +01:00
nf_nat_proto_sctp.c
netfilter: nat: skip checksum on offload SCTP packets
2016-12-07 13:22:50 +01:00
nf_nat_proto_tcp.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
nf_nat_proto_udp.c
netfilter: nat: merge udp and udplite helpers
2017-01-03 14:33:25 +01:00
nf_nat_proto_unknown.c
…
nf_nat_redirect.c
netfilter: nf_nat_redirect: add missing NULL pointer check
2015-10-27 06:54:56 +01:00
nf_nat_sip.c
netfilter: replace strnicmp with strncasecmp
2014-10-14 02:18:24 +02:00
nf_nat_tftp.c
…
nf_queue.c
netfilter: introduce accessor functions for hook entries
2016-12-06 21:42:15 +01:00
nf_sockopt.c
netfilter: don't use mutex_lock_interruptible()
2014-08-08 16:47:23 +02:00
nf_synproxy_core.c
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
nf_tables_api.c
netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails
2017-03-03 13:48:34 +01:00
nf_tables_core.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nf_tables_inet.c
netfilter: Add the missed return value check of nft_register_chain_type
2016-09-12 19:54:45 +02:00
nf_tables_netdev.c
netfilter: Add the missed return value check of nft_register_chain_type
2016-09-12 19:54:45 +02:00
nf_tables_trace.c
netfilter: nf_tables: use hook state from xt_action_param structure
2016-11-03 11:52:34 +01:00
nfnetlink_acct.c
netfilter: nfnetlink: use list_for_each_entry_safe to delete all objects
2016-08-25 13:11:00 +02:00
nfnetlink_cthelper.c
scripts/spelling.txt: add "an user" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
nfnetlink_cttimeout.c
netfilter: cttimeout: unlink timeout objs in the unconfirmed ct lists
2016-08-25 13:11:30 +02:00
nfnetlink_log.c
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
nfnetlink_queue.c
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
nfnetlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-02-23 10:59:15 -05:00
nft_bitwise.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_byteorder.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_cmp.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_compat.c
netfilter: nft_compat: fix crash when related match/target module is removed
2016-07-23 12:25:00 +02:00
nft_counter.c
netfilter: nft_counter: rework atomic dump and reset
2016-12-11 10:01:05 -05:00
nft_ct.c
netfilter: nft_ct: fix random validation errors for zone set support
2017-02-23 21:50:28 +01:00
nft_dup_netdev.c
netfilter: nf_tables: add packet duplication to the netdev family
2016-01-03 21:04:23 +01:00
nft_dynset.c
netfilter: nf_tables: validate the name size when possible
2017-01-23 23:36:50 +01:00
nft_exthdr.c
netfilter: nft_exthdr: Allow checking TCP option presence, too
2017-03-06 17:52:56 +01:00
nft_fib_inet.c
netfilter: nf_tables: use hook state from xt_action_param structure
2016-11-03 11:52:34 +01:00
nft_fib.c
netfilter: nft_fib: convert htonl to ntohl properly
2016-12-06 21:42:20 +01:00
nft_fwd_netdev.c
netfilter: add and use nf_fwd_netdev_egress
2016-12-06 21:48:22 +01:00
nft_hash.c
netfilter: nft_hash: support of symmetric hash
2017-03-06 17:57:42 +01:00
nft_immediate.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_limit.c
netfilter: nft_limit: fix divided by zero panic
2016-10-04 08:59:03 +02:00
nft_log.c
netfilter: nft_log: restrict the log prefix length to 127
2017-01-24 21:46:29 +01:00
nft_lookup.c
netfilter: nf_tables: validate the name size when possible
2017-01-23 23:36:50 +01:00
nft_masq.c
netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions
2016-12-04 21:17:16 +01:00
nft_meta.c
netfilter: nft_meta: deal with PACKET_LOOPBACK in netdev family
2017-01-18 20:32:43 +01:00
nft_nat.c
netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions
2016-12-04 21:17:16 +01:00
nft_numgen.c
netfilter: nft_numgen: start round robin from zero
2016-10-26 16:35:16 +02:00
nft_objref.c
netfilter: nf_tables: validate the name size when possible
2017-01-23 23:36:50 +01:00
nft_payload.c
netfilter: nft_payload: mangle ckecksum if NFT_PAYLOAD_L4CSUM_PSEUDOHDR is set
2016-12-14 23:39:11 +01:00
nft_queue.c
netfilter: nft_queue: use raw_smp_processor_id()
2016-12-14 23:39:01 +01:00
nft_quota.c
netfilter: nft_quota: reset quota after dump
2016-12-14 23:38:51 +01:00
nft_range.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-12-03 12:29:53 -05:00
nft_redir.c
netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions
2016-12-04 21:17:16 +01:00
nft_reject_inet.c
netfilter: nf_tables: use hook state from xt_action_param structure
2016-11-03 11:52:34 +01:00
nft_reject.c
netfilter: nft_reject: restrict to INPUT/FORWARD/OUTPUT
2016-08-25 12:55:34 +02:00
nft_rt.c
netfilter: nf_tables: use hook state from xt_action_param structure
2016-11-03 11:52:34 +01:00
nft_set_bitmap.c
netfilter: nft_set_bitmap: incorrect bitmap size
2017-02-26 21:00:19 +01:00
nft_set_hash.c
netfilter: nf_tables: honor NFT_SET_OBJECT in set backend selection
2017-02-12 14:45:14 +01:00
nft_set_rbtree.c
netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups
2017-03-03 13:48:32 +01:00
x_tables.c
scripts/spelling.txt: add "aligment" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
xt_addrtype.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_AUDIT.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_bpf.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_cgroup.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_CHECKSUM.c
…
xt_CLASSIFY.c
…
xt_cluster.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_comment.c
…
xt_connbytes.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_connlabel.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_connlimit.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_connmark.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_CONNSECMARK.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_conntrack.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_cpu.c
…
xt_CT.c
netfilter: merge ctinfo into nfct pointer storage area
2017-02-02 14:31:56 +01:00
xt_dccp.c
…
xt_devgroup.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_dscp.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_DSCP.c
netfilter: fix various sparse warnings
2014-11-13 12:14:42 +01:00
xt_ecn.c
…
xt_esp.c
…
xt_hashlimit.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2017-02-23 10:59:15 -05:00
xt_helper.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_hl.c
…
xt_HL.c
…
xt_HMARK.c
net: use reciprocal_scale() helper
2014-08-23 12:21:21 -07:00
xt_IDLETIMER.c
netfilter: IDLETIMER: fix race condition when destroy the target
2016-04-29 14:28:48 +02:00
xt_ipcomp.c
netfilter: xt_ipcomp: add "ip[6]t_ipcomp" module alias name
2016-10-17 17:38:19 +02:00
xt_iprange.c
…
xt_ipvs.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_l2tp.c
netfilter: introduce l2tp match extension
2014-01-09 21:36:39 +01:00
xt_LED.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-08-05 18:46:26 -07:00
xt_length.c
…
xt_limit.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_LOG.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_mac.c
…
xt_mark.c
netfilter: xt_MARK: Add ARP support
2015-05-14 13:00:27 +02:00
xt_multiport.c
netfilter: xt_multiport: Fix wrong unmatch result with multiple ports
2016-12-06 21:48:20 +01:00
xt_nat.c
netfilter: nat: add dependencies on conntrack module
2016-12-04 21:16:51 +01:00
xt_NETMAP.c
netfilter: nat: add dependencies on conntrack module
2016-12-04 21:16:51 +01:00
xt_nfacct.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_NFLOG.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_NFQUEUE.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_osf.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_owner.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
xt_physdev.c
netfilter: physdev: add missed blank
2016-08-12 00:42:14 +02:00
xt_pkttype.c
netfilter: pkttype: unnecessary to check ipv6 multicast address
2017-01-18 20:32:43 +01:00
xt_policy.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_quota.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_rateest.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_RATEEST.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_realm.c
…
xt_recent.c
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
xt_REDIRECT.c
netfilter: nat: add dependencies on conntrack module
2016-12-04 21:16:51 +01:00
xt_repldata.h
net: netfilter: LLVMLinux: vlais-netfilter
2014-06-07 11:44:39 -07:00
xt_sctp.c
sctp: rename WORD_TRUNC/ROUND macros
2016-09-22 03:13:26 -04:00
xt_SECMARK.c
…
xt_set.c
netfilter: ipset: Improve skbinfo get/init helpers
2016-11-10 13:28:42 +01:00
xt_socket.c
netfilter: defrag: only register defrag functionality if needed
2016-12-06 21:42:00 +01:00
xt_state.c
netfilter: add and use nf_ct_netns_get/put
2016-12-04 21:16:50 +01:00
xt_statistic.c
net: replace macros net_random and net_srandom with direct calls to prandom
2014-01-14 15:15:25 -08:00
xt_string.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_tcpmss.c
…
xt_TCPMSS.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
xt_TCPOPTSTRIP.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
xt_tcpudp.c
netfilter: Convert FWINV<[foo]> macros and uses to NF_INVF
2016-07-03 10:55:07 +02:00
xt_TEE.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_time.c
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
xt_TPROXY.c
netfilter: defrag: only register defrag functionality if needed
2016-12-06 21:42:00 +01:00
xt_TRACE.c
netfilter: xt_TRACE: add explicitly nf_logger_find_get call
2016-06-23 13:26:49 +02:00
xt_u32.c
…