Jiri Pirko fddd8b501c netfilter: push reasm skb through instead of original frag skbs ...

[ Upstream commit 6aafeef03b ]

Pushing original fragments through causes several problems. For example
for matching, frags may not be matched correctly. Take following
example:

<example>
On HOSTA do:
ip6tables -I INPUT -p icmpv6 -j DROP
ip6tables -I INPUT -p icmpv6 -m icmp6 --icmpv6-type 128 -j ACCEPT

and on HOSTB you do:
ping6 HOSTA -s2000    (MTU is 1500)

Incoming echo requests will be filtered out on HOSTA. This issue does
not occur with smaller packets than MTU (where fragmentation does not happen)
</example>

As was discussed previously, the only correct solution seems to be to use
reassembled skb instead of separete frags. Doing this has positive side
effects in reducing sk_buff by one pointer (nfct_reasm) and also the reams
dances in ipvs and conntrack can be removed.

Future plan is to remove net/ipv6/netfilter/nf_conntrack_reasm.c
entirely and use code in net/ipv6/reassembly.c instead.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-12-08 07:29:25 -08:00

..

ipset

netfilter: ipset: Fix serious failure in CIDR tracking

2013-10-01 09:17:48 -07:00

ipvs

netfilter: push reasm skb through instead of original frag skbs

2013-12-08 07:29:25 -08:00

core.c

netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6

2013-05-23 11:58:55 +02:00

Kconfig

Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2013-02-21 12:05:51 -08:00

Makefile

netfilter: x_tables: add xt_bpf match

2013-01-21 12:20:19 +01:00

nf_conntrack_acct.c

netfilter: nf_ct_acct: move initialization out of pernet_operations

2013-01-23 12:55:29 +01:00

nf_conntrack_amanda.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +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

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2013-05-01 14:08:52 -07:00

nf_conntrack_ecache.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_conntrack_expect.c

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

2013-04-19 17:55:29 -04:00

nf_conntrack_extend.c

netfilter: nf_ct_ext: support variable length extensions

2012-06-16 15:08:49 +02:00

nf_conntrack_ftp.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +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: nf_conntrack: fix rt6i_gateway checks for H.323 helper

2013-11-04 04:31:05 -08:00

nf_conntrack_h323_types.c

[NETFILTER]: nf_conntrack_h323: constify and annotate H.323 helper

2008-01-31 19:28:07 -08:00

nf_conntrack_helper.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_conntrack_irc.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_conntrack_l3proto_generic.c

[NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_l3proto

2008-04-14 11:15:52 +02:00

nf_conntrack_labels.c

netfilter: ctnetlink: send event when conntrack label was modified

2013-06-24 11:32:56 +02:00

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: ctnetlink: send event when conntrack label was modified

2013-06-24 11:32:56 +02:00

nf_conntrack_pptp.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_conntrack_proto_dccp.c

netfilter: nf_log: prepare net namespace support for loggers

2013-04-05 20:12:54 +02:00

nf_conntrack_proto_generic.c

netfilter: nf_conntrack: generalize nf_ct_l4proto_net

2012-07-04 19:37:22 +02:00

nf_conntrack_proto_gre.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +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 my copyright statements

2013-04-18 20:27:55 +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: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_conntrack_sane.c

netfilter: nf_ct_helper: better logging for dropped packets

2013-02-19 02:48:05 +01:00

nf_conntrack_sip.c

netfilter: nf_ct_sip: don't drop packets with offsets pointing outside the packet

2013-04-06 14:03:18 +02:00

nf_conntrack_snmp.c

netfilter: nf_ct_snmp: add include file

2013-01-18 00:28:18 +01:00

nf_conntrack_standalone.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +02:00

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_tstamp: move initialization out of pernet_operations

2013-01-23 12:55:39 +01:00

nf_internals.h

netfilter: pass 'nf_hook_ops' instead of 'list_head' to nf_queue()

2012-09-03 13:52:54 +02:00

nf_log.c

netfilter: log: netns NULL ptr bug when calling from conntrack

2013-05-15 14:11:07 +02:00

nf_nat_amanda.c

netfilter: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_nat_core.c

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

2013-04-25 00:53:40 -04:00

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: add my copyright statements

2013-04-18 20:27:55 +02:00

nf_nat_irc.c

netfilter: nf_ct_helper: better logging for dropped packets

2013-02-19 02:48:05 +01:00

nf_nat_proto_common.c

netfilter: add protocol independent NAT core

2012-08-30 03:00:14 +02:00

nf_nat_proto_dccp.c

netfilter: add protocol independent NAT core

2012-08-30 03:00:14 +02:00

nf_nat_proto_sctp.c

sctp: Correct type and usage of sctp_end_cksum()

2013-04-29 20:09:08 +02:00

nf_nat_proto_tcp.c

netfilter: add protocol independent NAT core

2012-08-30 03:00:14 +02:00

nf_nat_proto_udp.c

netfilter: add protocol independent NAT core

2012-08-30 03:00:14 +02:00

nf_nat_proto_udplite.c

netfilter: add protocol independent NAT core

2012-08-30 03:00:14 +02:00

nf_nat_proto_unknown.c

netfilter: add protocol independent NAT core

2012-08-30 03:00:14 +02:00

nf_nat_sip.c

netfilter: nf_nat_sip: fix mangling

2013-06-24 11:32:40 +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

net: Make setsockopt() optlen be unsigned.

2009-09-30 16:12:20 -07:00

nf_tproxy_core.c

netfilter: tproxy: do not assign timewait sockets to skb->sk

2011-02-17 11:32:38 +01:00

nfnetlink_acct.c

netfilter: nfnetlink_acct: fix incomplete dumping of objects

2013-06-05 12:36:36 +02:00

nfnetlink_cthelper.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

nfnetlink_cttimeout.c

netfilter: nfnetlink_cttimeout: fix incomplete dumping of objects

2013-06-05 12:36:37 +02:00

nfnetlink_log.c

netfilter: log: netns NULL ptr bug when calling from conntrack

2013-05-15 14:11:07 +02:00

nfnetlink_queue_core.c

netfilter: nfnetlink_queue: fix missing HW protocol

2013-06-07 18:55:20 +02:00

nfnetlink_queue_ct.c

netfilter: nfnetlink_queue: fix sparse warning due to missing include

2012-06-23 02:13:38 +02:00

nfnetlink.c

nfnetlink: add support for memory mapped netlink

2013-04-19 14:58:36 -04:00

x_tables.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

xt_addrtype.c

netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6

2013-05-23 11:58:55 +02:00

xt_AUDIT.c

netfilter: xt_AUDIT: only generate audit log when audit enabled

2013-03-04 14:45:25 +01:00

xt_bpf.c

netfilter: x_tables: add xt_bpf match

2013-01-21 12:20:19 +01:00

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

Merge branch 'nf-next' of git://1984.lsi.us.es/net-next

2011-12-25 02:21:45 -05:00

xt_connlabel.c

netfilter: add connlabel conntrack extension

2013-01-18 00:28:15 +01:00

xt_connlimit.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

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: add my copyright statements

2013-04-18 20:27:55 +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: add alias flag

2013-02-05 01:49:26 +01:00

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_ecn.c

netfilter: xtables: collapse conditions in xt_ecn

2011-12-27 20:45:25 +01:00

xt_esp.c

netfilter: xtables: change hotdrop pointer to direct modification

2010-05-11 18:35:27 +02:00

xt_hashlimit.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

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_HMARK.c

ipv6: Move ipv6_find_hdr() out of Netfilter code.

2012-11-09 17:05:07 -08:00

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: API change to avoid rescan of IPv6 exthdr

2012-09-28 11:34:33 +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: 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

netfilter: Convert compare_ether_addr to ether_addr_equal

2012-05-09 20:49:18 -04:00

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_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

netfilter: xtables: add nfacct match to support extended accounting

2011-12-25 02:43:17 +01:00

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: coalesce IPv4 and IPv6 hashing

2013-04-02 01:26:10 +02:00

xt_osf.c

netfilter: nf_log: prepare net namespace support for loggers

2013-04-05 20:12:54 +02:00

xt_owner.c

userns: xt_owner: Add basic user namespace support.

2012-08-14 21:55:30 -07:00

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

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

xt_realm.c

netfilter: xtables: deconstify struct xt_action_param for matches

2010-05-11 18:33:37 +02:00

xt_recent.c

proc: Supply PDE attribute setting accessor functions

2013-05-01 17:29:18 -04:00

xt_REDIRECT.c

netfilter: combine ipt_REDIRECT and ip6t_REDIRECT

2012-09-21 12:12:05 +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

netfilter: ipset: set match: add support to match the counters

2013-04-29 20:09:03 +02:00

xt_socket.c

netfilter: xt_socket: fix compilation warnings with gcc 4.7

2012-09-03 13:31:39 +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: xt_TCPMSS: Fix missing fragmentation handling

2013-06-12 11:06:19 +02:00

xt_TCPOPTSTRIP.c

netfilter: xt_TCPOPTSTRIP: don't use tcp_hdr()

2013-06-11 01:55:07 +02:00

xt_tcpudp.c

netfilter: xtables: change hotdrop pointer to direct modification

2010-05-11 18:35:27 +02:00

xt_TEE.c

netfilter: xt_TEE: don't use destination address found in header

2012-10-17 11:00:31 +02:00

xt_time.c

netfilter: xt_time: add support to ignore day transition

2012-09-24 14:29:01 +02:00

xt_TPROXY.c

net: Fix (nearly-)kernel-doc comments for various functions

2012-07-10 23:13:45 -07:00

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