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6a662719c9
As suggested by Julian:
Simply, flowi4_iif must not contain 0, it does not
look logical to ignore all ip rules with specified iif.
because in fib_rule_match() we do:
if (rule->iifindex && (rule->iifindex != fl->flowi_iif))
goto out;
flowi4_iif should be LOOPBACK_IFINDEX by default.
We need to move LOOPBACK_IFINDEX to include/net/flow.h:
1) It is mostly used by flowi_iif
2) Fix the following compile error if we use it in flow.h
by the patches latter:
In file included from include/linux/netfilter.h:277:0,
from include/net/netns/netfilter.h:5,
from include/net/net_namespace.h:21,
from include/linux/netdevice.h:43,
from include/linux/icmpv6.h:12,
from include/linux/ipv6.h:61,
from include/net/ipv6.h:16,
from include/linux/sunrpc/clnt.h:27,
from include/linux/nfs_fs.h:30,
from init/do_mounts.c:32:
include/net/flow.h: In function ‘flowi4_init_output’:
include/net/flow.h:84:32: error: ‘LOOPBACK_IFINDEX’ undeclared (first use in this function)
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|---|---|---|
| .. | ||
| arp_tables.c | ||
| arpt_mangle.c | ||
| arptable_filter.c | ||
| ip_tables.c | ||
| ipt_ah.c | ||
| ipt_CLUSTERIP.c | ||
| ipt_ECN.c | ||
| ipt_MASQUERADE.c | ||
| ipt_REJECT.c | ||
| ipt_rpfilter.c | ||
| ipt_SYNPROXY.c | ||
| ipt_ULOG.c | ||
| iptable_filter.c | ||
| iptable_mangle.c | ||
| iptable_nat.c | ||
| iptable_raw.c | ||
| iptable_security.c | ||
| Kconfig | ||
| Makefile | ||
| nf_conntrack_l3proto_ipv4_compat.c | ||
| nf_conntrack_l3proto_ipv4.c | ||
| nf_conntrack_proto_icmp.c | ||
| nf_defrag_ipv4.c | ||
| nf_nat_h323.c | ||
| nf_nat_l3proto_ipv4.c | ||
| nf_nat_pptp.c | ||
| nf_nat_proto_gre.c | ||
| nf_nat_proto_icmp.c | ||
| nf_nat_snmp_basic.c | ||
| nf_tables_arp.c | ||
| nf_tables_ipv4.c | ||
| nft_chain_nat_ipv4.c | ||
| nft_chain_route_ipv4.c | ||
| nft_reject_ipv4.c | ||