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linux/net/netfilter
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Florian Westphal 0354b48f63 netfilter: xt_connbytes: handle negation correctly 
"! --connbytes 23:42" should match if the packet/byte count is not in range.

As there is no explict "invert match" toggle in the match structure,
userspace swaps the from and to arguments
(i.e., as if "--connbytes 42:23" were given).

However, "what <= 23 && what >= 42" will always be false.

Change things so we use "||" in case "from" is larger than "to".

This change may look like it breaks backwards compatibility when "to" is 0.
However, older iptables binaries will refuse "connbytes 42:0",
and current releases treat it to mean "! --connbytes 0:42",
so we should be fine.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-12-23 14:50:19 +01:00
..
ipset netfilter: ipset: suppress compile-time warnings in ip_set_hash_ipport*.c 2011-11-21 18:45:43 +01:00
ipvs ipvs: Remove unused variable "cs" from ip_vs_leave function. 2011-11-01 09:19:57 +01:00
core.c netfilter: do not propagate nf_queue errors in nf_hook_slow 2011-11-01 09:57:21 +01:00
Kconfig netfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS 2011-12-01 22:19:01 -05:00
Makefile netfilter: ipt_addrtype: rename to xt_addrtype 2011-03-15 20:16:20 +01:00
nf_conntrack_acct.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
nf_conntrack_amanda.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_conntrack_broadcast.c netfilter: nf_conntrack: nf_conntrack snmp helper 2011-01-18 18:12:24 +01:00
nf_conntrack_core.c netfilter: Remove unnecessary OOM logging messages 2011-11-01 09:19:49 +01:00
nf_conntrack_ecache.c netfilter: nf_conntrack: make event callback registration per-netns 2011-11-22 00:34:47 +01:00
nf_conntrack_expect.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
nf_conntrack_extend.c rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
nf_conntrack_ftp.c netfilter: add more values to enum ip_conntrack_info 2011-06-06 01:35:10 +02:00
nf_conntrack_h323_asn1.c netfilter: h323: bug in parsing of ASN1 SEQOF field 2011-04-04 15:21:02 +02:00
nf_conntrack_h323_main.c netfilter: add more values to enum ip_conntrack_info 2011-06-06 01:35:10 +02:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
nf_conntrack_irc.c netfilter: add more values to enum ip_conntrack_info 2011-06-06 01:35:10 +02:00
nf_conntrack_l3proto_generic.c
nf_conntrack_netbios_ns.c netfilter: nf_conntrack: nf_conntrack snmp helper 2011-01-18 18:12:24 +01:00
nf_conntrack_netlink.c netfilter: nf_conntrack: make event callback registration per-netns 2011-11-22 00:34:47 +01:00
nf_conntrack_pptp.c netfilter: nf_ct_pptp: fix DNATed PPTP connection address translation 2011-08-30 15:23:03 +02:00
nf_conntrack_proto_dccp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
nf_conntrack_proto_generic.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_proto_gre.c netfilter: nf_conntrack: fix event flooding in GRE protocol tracker 2011-10-03 12:43:24 +02:00
nf_conntrack_proto_sctp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
nf_conntrack_proto_tcp.c netfilter: nf_ct_tcp: wrong multiplication of TCPOLEN_TSTAMP_ALIGNED in tcp_sack skips fastpath 2011-08-30 15:46:13 +02:00
nf_conntrack_proto_udp.c netfilter: nf_conntrack: pass template to l4proto ->error() handler 2010-02-15 17:45:08 +01:00
nf_conntrack_proto_udplite.c netfilter: nf_conntrack: pass template to l4proto ->error() handler 2010-02-15 17:45:08 +01:00
nf_conntrack_proto.c netfilter: rcu sparse cleanups 2010-11-15 19:45:13 +01:00
nf_conntrack_sane.c netfilter: add more values to enum ip_conntrack_info 2011-06-06 01:35:10 +02:00
nf_conntrack_sip.c netfilter: add more values to enum ip_conntrack_info 2011-06-06 01:35:10 +02:00
nf_conntrack_snmp.c netfilter: nf_conntrack: nf_conntrack snmp helper 2011-01-18 18:12:24 +01:00
nf_conntrack_standalone.c netfilter: nf_conntrack_standalone: Fix set-but-unused variables. 2011-04-17 17:03:33 -07:00
nf_conntrack_tftp.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_conntrack_timestamp.c netfilter: nf_conntrack_tstamp: add flow-based timestamp extension 2011-01-19 16:00:07 +01:00
nf_internals.h netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_log.c rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
nf_queue.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net 2011-08-07 23:20:26 -07:00
nf_sockopt.c
nf_tproxy_core.c netfilter: tproxy: do not assign timewait sockets to skb->sk 2011-02-17 11:32:38 +01:00
nfnetlink_log.c netfilter: Remove unnecessary OOM logging messages 2011-11-01 09:19:49 +01:00
nfnetlink_queue.c netfilter: nf_queue: reject NF_STOLEN verdicts from userspace 2011-08-30 15:01:20 +02:00
nfnetlink.c rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER 2011-08-02 04:29:23 -07:00
x_tables.c net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
xt_addrtype.c netfilter: xt_addrtype: replace rt6_lookup with nf_afinfo->route 2011-04-04 17:01:43 +02:00
xt_AUDIT.c netfilter: add SELinux context support to AUDIT target 2011-06-30 13:31:57 +02:00
xt_CHECKSUM.c netfilter: add CHECKSUM target 2010-07-15 17:20:46 +02:00
xt_CLASSIFY.c netfilter: xt_CLASSIFY: add ARP support, allow CLASSIFY target on any table 2010-11-15 13:57:56 +01:00
xt_cluster.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_comment.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_connbytes.c netfilter: xt_connbytes: handle negation correctly 2011-12-23 14:50:19 +01:00
xt_connlimit.c netfilter: xt_connlimit: remove connlimit_rnd_inited 2011-03-15 13:26:32 +01:00
xt_connmark.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_CONNSECMARK.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_conntrack.c netfilter: revert a2361c8735 2011-05-10 12:13:36 +02:00
xt_cpu.c netfilter: xtables: add missing aliases for autoloading via iptables 2011-01-18 06:33:54 +01:00
xt_CT.c netfilter: xt_CT: provide info on why a rule was rejected 2011-04-21 11:05:14 +02:00
xt_dccp.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_devgroup.c netfilter: xtables: add device group match 2011-02-03 00:05:43 +01:00
xt_dscp.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_DSCP.c netfilter: IPv6: fix DSCP mangle code 2011-05-10 10:00:21 +02:00
xt_esp.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_hashlimit.c netfilter: Remove unnecessary OOM logging messages 2011-11-01 09:19:49 +01:00
xt_helper.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_hl.c netfilter: Reduce switch/case indent 2011-07-01 16:11:15 -07:00
xt_HL.c netfilter: Reduce switch/case indent 2011-07-01 16:11:15 -07:00
xt_IDLETIMER.c netfilter: Remove unnecessary OOM logging messages 2011-11-01 09:19:49 +01:00
xt_iprange.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-02-04 14:28:58 -08:00
xt_ipvs.c IPVS: netns, use ip_vs_proto_data as param. 2011-01-13 10:30:27 +09:00
xt_LED.c netfilter: xtables: add missing aliases for autoloading via iptables 2011-01-18 06:33:54 +01:00
xt_length.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_limit.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_mac.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_mark.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_multiport.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_NFLOG.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_NFQUEUE.c netfilter: allow NFQUEUE bypass if no listener is available 2011-01-18 16:08:30 +01:00
xt_NOTRACK.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_osf.c net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu() 2011-05-07 22:51:12 -07:00
xt_owner.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_physdev.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_pkttype.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_policy.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_quota.c net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
xt_rateest.c netfilter: xt_rateest: fix xt_rateest_mt_checkentry() 2011-07-29 16:24:46 +02:00
xt_RATEEST.c net,rcu: Convert call_rcu(xt_rateest_free_rcu) to kfree_rcu() 2011-07-20 14:10:19 -07:00
xt_realm.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_recent.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
xt_repldata.h netfilter: xtables: generate initial table on-demand 2010-02-10 17:50:47 +01:00
xt_sctp.c netfilter: xt_sctp: use WORD_ROUND macro to calculate length of multiple of 4 bytes 2010-06-09 14:47:40 +02:00
xt_SECMARK.c secmark: make secmark object handling generic 2010-10-21 10:12:48 +11:00
xt_set.c Remove redundant linux/version.h includes from net/ 2011-06-21 16:03:17 -07:00
xt_socket.c netfilter: add more values to enum ip_conntrack_info 2011-06-06 01:35:10 +02:00
xt_state.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_statistic.c net: Fix files explicitly needing to include module.h 2011-10-31 19:30:28 -04:00
xt_string.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_tcpmss.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_TCPMSS.c netfilter: af_info: add 'strict' parameter to limit lookup to .oif 2011-04-04 17:00:54 +02:00
xt_TCPOPTSTRIP.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_tcpudp.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_TEE.c ipv6: Convert to use flowi6 where applicable. 2011-03-12 15:08:54 -08:00
xt_time.c netfilter: remove unnecessary returns from void function()s 2010-05-13 15:16:27 +02:00
xt_TPROXY.c netfilter: tproxy: do not assign timewait sockets to skb->sk 2011-02-17 11:32:38 +01:00
xt_TRACE.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_u32.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00