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linux/net/netfilter
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Patrick McHardy b855d416dc netfilter: nf_tables: fix nft_cmp_fast failure on big endian for size < 4 
nft_cmp_fast is used for equality comparisions of size <= 4. For
comparisions of size < 4 byte a mask is calculated that is applied to
both the data from userspace (during initialization) and the register
value (during runtime). Both values are stored using (in effect) memcpy
to a memory area that is then interpreted as u32 by nft_cmp_fast.

This works fine on little endian since smaller types have the same base
address, however on big endian this is not true and the smaller types
are interpreted as a big number with trailing zero bytes.

The mask therefore must not include the lower bytes, but the higher bytes
on big endian. Add a helper function that does a cpu_to_le32 to switch
the bytes on big endian. Since we're dealing with a mask of just consequitive
bits, this works out fine.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-04-14 10:38:02 +02:00
..
ipset netfilter: Convert uses of __constant_<foo> to <foo> 2014-03-13 14:13:19 +01:00
ipvs Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2014-03-17 15:06:24 -04:00
core.c netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
Kconfig netfilter: nf_tables: add reject module for NFPROTO_INET 2014-02-06 09:44:18 +01:00
Makefile netfilter: nf_tables: add reject module for NFPROTO_INET 2014-02-06 09:44:18 +01:00
nf_conntrack_acct.c netfilter: introduce nf_conn_acct structure 2013-11-03 21:48:49 +01:00
nf_conntrack_amanda.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_broadcast.c
nf_conntrack_core.c netfilter: nf_conntrack: initialize net.ct.generation 2014-04-14 10:35:28 +02:00
nf_conntrack_ecache.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_expect.c netfilter: conntrack: seperate expect locking from nf_conntrack_lock 2014-03-07 11:41:01 +01:00
nf_conntrack_extend.c
nf_conntrack_ftp.c netfilter: Implement RFC 1123 for FTP conntrack 2013-05-27 13:32:43 +02:00
nf_conntrack_h323_asn1.c
nf_conntrack_h323_main.c netfilter: conntrack: seperate expect locking from nf_conntrack_lock 2014-03-07 11:41:01 +01:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c netfilter: conntrack: remove central spinlock nf_conntrack_lock 2014-03-07 11:41:13 +01:00
nf_conntrack_irc.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_l3proto_generic.c
nf_conntrack_labels.c netfilter: connlabels: remove unneeded includes 2013-07-31 16:39:18 +02:00
nf_conntrack_netbios_ns.c
nf_conntrack_netlink.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2014-03-17 15:06:24 -04:00
nf_conntrack_pptp.c netfilter: nf_conntrack: flush net_gre->keymap_list only from gre helper 2014-04-08 10:56:12 +02:00
nf_conntrack_proto_dccp.c netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages 2014-01-06 17:40:02 +01:00
nf_conntrack_proto_generic.c
nf_conntrack_proto_gre.c netfilter: nf_conntrack: flush net_gre->keymap_list only from gre helper 2014-04-08 10:56:12 +02:00
nf_conntrack_proto_sctp.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_proto_tcp.c netfilter: add SYNPROXY core/target 2013-08-28 00:27:54 +02:00
nf_conntrack_proto_udp.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_proto_udplite.c netfilter: nf_log: prepare net namespace support for loggers 2013-04-05 20:12:54 +02:00
nf_conntrack_proto.c netfilter: nf_conntrack: remove dead code 2014-01-03 23:41:37 +01:00
nf_conntrack_sane.c netfilter: nf_ct_helper: better logging for dropped packets 2013-02-19 02:48:05 +01:00
nf_conntrack_seqadj.c netfilter: only warn once on wrong seqadj usage 2014-01-06 14:23:17 +01:00
nf_conntrack_sip.c netfilter: conntrack: seperate expect locking from nf_conntrack_lock 2014-03-07 11:41:01 +01:00
nf_conntrack_snmp.c netfilter: nf_ct_snmp: add include file 2013-01-18 00:28:18 +01:00
nf_conntrack_standalone.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
nf_conntrack_tftp.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_timeout.c netfilter: nf_ct_timeout: move initialization out of pernet_operations 2013-01-23 12:56:02 +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_internals.h net: misc: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
nf_log.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
nf_nat_amanda.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_nat_core.c netfilter: ctnetlink: force null nat binding on insert 2014-02-18 00:13:51 +01:00
nf_nat_ftp.c netfilter: nf_ct_helper: better logging for dropped packets 2013-02-19 02:48:05 +01:00
nf_nat_helper.c netfilter: nf_conntrack: make sequence number adjustments usuable without NAT 2013-08-28 00:26:48 +02:00
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: nf_nat: add full port randomization support 2014-01-03 23:41:26 +01:00
nf_nat_proto_dccp.c
nf_nat_proto_sctp.c net/sctp: Refactor SCTP skb checksum computation 2013-07-27 20:07:15 -07:00
nf_nat_proto_tcp.c
nf_nat_proto_udp.c
nf_nat_proto_udplite.c
nf_nat_proto_unknown.c
nf_nat_sip.c netfilter: nf_ct_sip: consolidate NAT hook functions 2013-10-01 12:47:09 +02:00
nf_nat_tftp.c netfilter: nf_ct_helper: better logging for dropped packets 2013-02-19 02:48:05 +01:00
nf_queue.c netfilter: move skb_gso_segment into nfnetlink_queue module 2013-04-29 20:09:05 +02:00
nf_sockopt.c
nf_synproxy_core.c netfilter: nf_conntrack: don't release a conntrack with non-zero refcnt 2014-02-05 17:46:06 +01:00
nf_tables_api.c netfilter: nf_tables: fix wrong format in request_module() 2014-04-03 23:52:50 +02:00
nf_tables_core.c netfilter: nf_tables: fix nft_cmp_fast failure on big endian for size < 4 2014-04-14 10:38:02 +02:00
nf_tables_inet.c netfilter: nf_tables: fix error path in the init functions 2014-01-09 23:25:48 +01:00
nfnetlink_acct.c netfilter: nfnetlink_acct: fix incomplete dumping of objects 2013-06-05 12:36:36 +02:00
nfnetlink_cthelper.c netfilter: check return code from nla_parse_tested 2013-06-20 11:20:13 +02:00
nfnetlink_cttimeout.c netfilter: cttimeout: allow to set/get default protocol timeouts 2013-10-01 13:17:39 +02:00
nfnetlink_log.c netfilter: nfnetlink_log: remove unused code 2014-02-25 11:30:01 +01:00
nfnetlink_queue_core.c core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors 2014-03-27 15:29:38 -04:00
nfnetlink_queue_ct.c netfilter: nf_conntrack: make sequence number adjustments usuable without NAT 2013-08-28 00:26:48 +02:00
nfnetlink.c netfilter: nfnetlink: add rcu_dereference_protected() helpers 2014-02-25 11:29:21 +01:00
nft_bitwise.c netfilter: nf_tables: expression ops overloading 2013-10-14 17:16:08 +02:00
nft_byteorder.c netfilter: nf_tables: expression ops overloading 2013-10-14 17:16:08 +02:00
nft_cmp.c netfilter: nf_tables: fix nft_cmp_fast failure on big endian for size < 4 2014-04-14 10:38:02 +02:00
nft_compat.c netfilter: nf_tables: restore context for expression destructors 2014-03-08 12:35:17 +01:00
nft_counter.c netfilter: nf_tables: expression ops overloading 2013-10-14 17:16:08 +02:00
nft_ct.c netfilter: nft_ct: remove family from struct nft_ct 2014-03-08 12:35:19 +01:00
nft_expr_template.c netfilter: nf_tables: expression ops overloading 2013-10-14 17:16:08 +02:00
nft_exthdr.c netfilter: nft_exthdr: call ipv6_find_hdr() with explicitly initialized offset 2013-12-20 11:25:10 +01:00
nft_hash.c netfilter: Add missing vmalloc.h include to nft_hash.c 2014-03-18 23:12:02 -04:00
nft_immediate.c netfilter: nf_tables: restore context for expression destructors 2014-03-08 12:35:17 +01:00
nft_limit.c netfilter: nf_tables: expression ops overloading 2013-10-14 17:16:08 +02:00
nft_log.c netfilter: nf_tables: restore context for expression destructors 2014-03-08 12:35:17 +01:00
nft_lookup.c netfilter: nf_tables: restore notifications for anonymous set destruction 2014-03-08 12:35:18 +01:00
nft_meta.c netfilter: nft_meta: fix typo "CONFIG_NET_CLS_ROUTE" 2014-02-14 11:37:34 +01:00
nft_nat.c netfilter: nft_nat: fix family validation 2014-03-08 12:35:19 +01:00
nft_payload.c netfilter: nf_tables: check if payload length is a power of 2 2014-02-17 11:21:17 +01:00
nft_queue.c netfilter: nf_tables: fix log/queue expressions for NFPROTO_INET 2014-02-06 11:41:38 +01:00
nft_rbtree.c netfilter: nft_rbtree: fix data handling of end interval elements 2014-02-07 14:22:06 +01:00
nft_reject_inet.c netfilter: nft_reject_inet: fix unintended fall-through in switch-statatement 2014-02-14 11:37:33 +01:00
nft_reject.c netfilter: nft_reject: split up reject module into IPv4 and IPv6 specifc parts 2014-02-06 09:44:10 +01:00
x_tables.c netfilter: x_tables: fix ordering of jumpstack allocation and table update 2013-10-22 10:11:29 +02:00
xt_addrtype.c netfilter: xt_addrtype: fix trivial typo 2013-07-31 16:36:25 +02:00
xt_AUDIT.c netfilter: Convert uses of __constant_<foo> to <foo> 2014-03-13 14:13:19 +01:00
xt_bpf.c netfilter: x_tables: add xt_bpf match 2013-01-21 12:20:19 +01:00
xt_cgroup.c netfilter: x_tables: allow to use cgroup match for LOCAL_IN nf hooks 2014-04-03 23:52:17 +02:00
xt_CHECKSUM.c
xt_CLASSIFY.c
xt_cluster.c
xt_comment.c
xt_connbytes.c netfilter: introduce nf_conn_acct structure 2013-11-03 21:48:49 +01:00
xt_connlabel.c netfilter: add connlabel conntrack extension 2013-01-18 00:28:15 +01:00
xt_connlimit.c netfilter: connlimit: move lock array out of struct connlimit_data 2014-04-03 23:52:13 +02:00
xt_connmark.c netfilter: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
xt_CONNSECMARK.c
xt_conntrack.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
xt_cpu.c
xt_CT.c netfilter: nf_conntrack: don't release a conntrack with non-zero refcnt 2014-02-05 17:46:06 +01:00
xt_dccp.c
xt_devgroup.c
xt_dscp.c
xt_DSCP.c
xt_ecn.c
xt_esp.c
xt_hashlimit.c Revert "netfilter: avoid get_random_bytes calls" 2014-01-06 14:00:55 +01:00
xt_helper.c
xt_hl.c
xt_HL.c
xt_HMARK.c ipv6: Move ipv6_find_hdr() out of Netfilter code. 2012-11-09 17:05:07 -08:00
xt_IDLETIMER.c
xt_ipcomp.c netfilter: xt_ipcomp: Use ntohs to ease sparse warning 2014-02-19 11:41:25 +01:00
xt_iprange.c
xt_ipvs.c ipvs: API change to avoid rescan of IPv6 exthdr 2012-09-28 11:34:33 +09:00
xt_l2tp.c netfilter: introduce l2tp match extension 2014-01-09 21:36:39 +01:00
xt_LED.c
xt_length.c
xt_limit.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
xt_LOG.c netfilter: xt_LOG: fix mark logging for IPv6 packets 2013-05-29 12:29:18 +02:00
xt_mac.c
xt_mark.c
xt_multiport.c
xt_nat.c netfilter: xt_nat: fix incorrect hooks for SNAT and DNAT targets 2012-10-15 13:39:12 +02:00
xt_NETMAP.c netfilter: combine ipt_NETMAP and ip6t_NETMAP 2012-09-21 12:11:08 +02:00
xt_nfacct.c
xt_NFLOG.c netfilter: log: netns NULL ptr bug when calling from conntrack 2013-05-15 14:11:07 +02:00
xt_NFQUEUE.c netfilter: xt_NFQUEUE: separate reusable code 2013-12-07 23:20:45 +01:00
xt_osf.c netfilter: Add {ipt,ip6t}_osf aliases for xt_osf 2014-04-03 23:52:22 +02:00
xt_owner.c
xt_physdev.c
xt_pkttype.c
xt_policy.c
xt_quota.c
xt_rateest.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
xt_RATEEST.c Revert "netfilter: avoid get_random_bytes calls" 2014-01-06 14:00:55 +01:00
xt_realm.c
xt_recent.c Revert "netfilter: avoid get_random_bytes calls" 2014-01-06 14:00:55 +01:00
xt_REDIRECT.c netfilter: combine ipt_REDIRECT and ip6t_REDIRECT 2012-09-21 12:12:05 +02:00
xt_repldata.h
xt_sctp.c
xt_SECMARK.c
xt_set.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
xt_socket.c netfilter: xt_socket: use sock_gen_put() 2013-10-17 10:27:25 +02:00
xt_state.c
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
xt_tcpmss.c
xt_TCPMSS.c netfilter: xt_TCPMSS: lookup route from proper net namespace 2013-09-27 16:18:23 +02:00
xt_TCPOPTSTRIP.c netfilter: xt_TCPOPTSTRIP: fix possible off by one access 2013-08-01 11:45:15 +02:00
xt_tcpudp.c
xt_TEE.c net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
xt_time.c netfilter: xt_time: add support to ignore day transition 2012-09-24 14:29:01 +02:00
xt_TPROXY.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
xt_TRACE.c
xt_u32.c