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linux/net/ipv4/netfilter
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Pablo Neira Ayuso 7210e4e38f netfilter: nf_tables: restrict nat/masq expressions to nat chain type 
This adds the missing validation code to avoid the use of nat/masq from
non-nat chains. The validation assumes two possible configuration
scenarios:

1) Use of nat from base chain that is not of nat type. Reject this
   configuration from the nft_*_init() path of the expression.

2) Use of nat from non-base chain. In this case, we have to wait until
   the non-base chain is referenced by at least one base chain via
   jump/goto. This is resolved from the nft_*_validate() path which is
   called from nf_tables_check_loops().

The user gets an -EOPNOTSUPP in both cases.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2014-10-13 20:42:00 +02:00
..
arp_tables.c netfilter: Can't fail and free after table replacement 2014-04-05 17:46:22 +02:00
arpt_mangle.c netfilter: arpt_mangle: fix return values of checkentry 2011-02-01 16:03:46 +01:00
arptable_filter.c netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
ip_tables.c netfilter: Can't fail and free after table replacement 2014-04-05 17:46:22 +02:00
ipt_ah.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
ipt_CLUSTERIP.c net: use reciprocal_scale() helper 2014-08-23 12:21:21 -07:00
ipt_ECN.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
ipt_MASQUERADE.c netfilter: nf_nat: generalize IPv4 masquerading support for nf_tables 2014-09-09 16:31:29 +02:00
ipt_REJECT.c netfilter: use IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 2014-10-02 18:30:54 +02:00
ipt_rpfilter.c ipv4, fib: pass LOOPBACK_IFINDEX instead of 0 to flowi4_iif 2014-04-16 15:05:11 -04:00
ipt_SYNPROXY.c netfilter: SYNPROXY target: restrict to INPUT/FORWARD 2013-12-11 11:30:25 +01:00
iptable_filter.c netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
iptable_mangle.c netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
iptable_nat.c netfilter: nat: move specific NAT IPv4 to core 2014-09-02 17:14:10 +02:00
iptable_raw.c netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
iptable_security.c netfilter: pass hook ops to hookfn 2013-10-14 11:29:31 +02:00
Kconfig netfilter: move nf_send_resetX() code to nf_reject_ipvX modules 2014-10-02 18:30:49 +02:00
Makefile netfilter: move nf_send_resetX() code to nf_reject_ipvX modules 2014-10-02 18:30:49 +02:00
nf_conntrack_l3proto_ipv4_compat.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_conntrack_l3proto_ipv4.c netfilter: nf_conntrack: remove exceptional & on function name 2014-07-25 14:50:58 +02:00
nf_conntrack_proto_icmp.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_defrag_ipv4.c netfilter: use IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 2014-10-02 18:30:54 +02:00
nf_log_arp.c netfilter: add generic ARP packet logger 2014-06-27 13:20:38 +02:00
nf_log_ipv4.c netfilter: log: nf_log_packet() as real unified interface 2014-06-27 13:20:13 +02:00
nf_nat_h323.c netfilter: nf_nat_h323: fix crash in nf_ct_unlink_expect_report() 2014-02-05 17:46:05 +01:00
nf_nat_l3proto_ipv4.c netfilter: nat: move specific NAT IPv4 to core 2014-09-02 17:14:10 +02:00
nf_nat_masquerade_ipv4.c netfilter: nf_nat: generalize IPv4 masquerading support for nf_tables 2014-09-09 16:31:29 +02:00
nf_nat_pptp.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
nf_nat_proto_gre.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_proto_icmp.c netfilter: use IS_ENABLED() macro 2014-06-30 11:38:03 +02:00
nf_nat_snmp_basic.c netfilter: nf_nat_snmp_basic: fix duplicates in if/else branches 2014-02-14 11:37:36 +01:00
nf_reject_ipv4.c netfilter: missing module license in the nf_reject_ipvX modules 2014-10-11 14:59:41 +02:00
nf_tables_arp.c netfilter: nf_tables: rename nft_do_chain_pktinfo() to nft_do_chain() 2014-01-09 20:17:16 +01:00
nf_tables_ipv4.c netfilter: nf_tables: fix error path in the init functions 2014-01-09 23:25:48 +01:00
nft_chain_nat_ipv4.c netfilter: nft_chain_nat_ipv4: use generic IPv4 NAT code from core 2014-09-02 17:14:11 +02:00
nft_chain_route_ipv4.c netfilter: nf_tables: rename nft_do_chain_pktinfo() to nft_do_chain() 2014-01-09 20:17:16 +01:00
nft_masq_ipv4.c netfilter: nf_tables: restrict nat/masq expressions to nat chain type 2014-10-13 20:42:00 +02:00
nft_reject_ipv4.c netfilter: nft_reject: introduce icmp code abstraction for inet and bridge 2014-10-02 18:29:57 +02:00