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Date: Sat, 12 Jan 2019 01:47:48 +0800
From: kbuild test robot <lkp@...el.com>
To: wenxu@...oud.cn
Cc: kbuild-all@...org, dsahern@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2] vrf: Fix conntrack-dnat conflict in vrf-device
PREROUTING hook
Hi wenxu,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on net-next/master]
[also build test ERROR on v5.0-rc1 next-20190111]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/wenxu-ucloud-cn/vrf-Fix-conntrack-dnat-conflict-in-vrf-device-PREROUTING-hook/20190111-151714
config: x86_64-lkp (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All error/warnings (new ones prefixed by >>):
In file included from include/net/netfilter/nf_conntrack_tuple.h:14:0,
from include/linux/netfilter/nf_conntrack_proto_gre.h:14,
from include/net/netfilter/nf_conntrack.h:25,
from drivers//net/vrf.c:40:
include/linux/netfilter/x_tables.h: In function 'xt_net':
>> include/linux/netfilter/x_tables.h:46:19: error: dereferencing pointer to incomplete type 'const struct nf_hook_state'
return par->state->net;
^~
In file included from include/net/netfilter/nf_conntrack_tuple.h:14:0,
from include/linux/netfilter/nf_conntrack_proto_gre.h:14,
from include/net/netfilter/nf_conntrack.h:25,
from drivers//net/vrf.c:40:
include/linux/netfilter/x_tables.h: At top level:
>> include/linux/netfilter/x_tables.h:450:64: error: unknown type name 'nf_hookfn'
struct nf_hook_ops *xt_hook_ops_alloc(const struct xt_table *, nf_hookfn *);
^~~~~~~~~
In file included from include/linux/netfilter/nf_conntrack_proto_gre.h:14:0,
from include/net/netfilter/nf_conntrack.h:25,
from drivers//net/vrf.c:40:
include/net/netfilter/nf_conntrack_tuple.h: In function '__nf_ct_tuple_src_equal':
>> include/net/netfilter/nf_conntrack_tuple.h:127:10: error: implicit declaration of function 'nf_inet_addr_cmp'; did you mean 'inet_addr_type'? [-Werror=implicit-function-declaration]
return (nf_inet_addr_cmp(&t1->src.u3, &t2->src.u3) &&
^~~~~~~~~~~~~~~~
inet_addr_type
In file included from include/net/netfilter/nf_conntrack.h:25:0,
from drivers//net/vrf.c:40:
include/linux/netfilter/nf_conntrack_proto_gre.h: At top level:
>> include/linux/netfilter/nf_conntrack_proto_gre.h:31:22: error: field 'nf' has incomplete type
struct nf_proto_net nf;
^~
In file included from drivers//net/vrf.c:40:0:
>> include/net/netfilter/nf_conntrack.h:69:22: error: field 'ct_general' has incomplete type
struct nf_conntrack ct_general;
^~~~~~~~~~
include/net/netfilter/nf_conntrack.h: In function 'nf_ct_get':
>> include/net/netfilter/nf_conntrack.h:158:15: error: 'const struct sk_buff' has no member named '_nfct'
*ctinfo = skb->_nfct & NFCT_INFOMASK;
^~
include/net/netfilter/nf_conntrack.h:160:31: error: 'const struct sk_buff' has no member named '_nfct'
return (struct nf_conn *)(skb->_nfct & NFCT_PTRMASK);
^~
include/net/netfilter/nf_conntrack.h: In function 'nf_ct_put':
>> include/net/netfilter/nf_conntrack.h:167:2: error: implicit declaration of function 'nf_conntrack_put'; did you mean 'nf_ct_put'? [-Werror=implicit-function-declaration]
nf_conntrack_put(&ct->ct_general);
^~~~~~~~~~~~~~~~
nf_ct_put
include/net/netfilter/nf_conntrack.h: In function 'nf_ct_set':
>> include/net/netfilter/nf_conntrack.h:324:5: error: 'struct sk_buff' has no member named '_nfct'
skb->_nfct = (unsigned long)ct | info;
^~
include/net/netfilter/nf_conntrack.h: In function 'nf_ct_get':
>> include/net/netfilter/nf_conntrack.h:161:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
cc1: some warnings being treated as errors
vim +/ct_general +69 include/net/netfilter/nf_conntrack.h
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 21
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 22 #include <linux/netfilter/nf_conntrack_tcp.h>
2bc780499 Patrick McHardy 2008-03-20 23 #include <linux/netfilter/nf_conntrack_dccp.h>
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 24 #include <linux/netfilter/nf_conntrack_sctp.h>
f09943fef Patrick McHardy 2006-12-02 @25 #include <linux/netfilter/nf_conntrack_proto_gre.h>
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 26 #include <net/netfilter/ipv6/nf_conntrack_icmpv6.h>
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 27
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 28 #include <net/netfilter/nf_conntrack_tuple.h>
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 29
d535c8a69 Florian Westphal 2018-12-06 30 struct nf_ct_udp {
d535c8a69 Florian Westphal 2018-12-06 31 unsigned long stream_ts;
d535c8a69 Florian Westphal 2018-12-06 32 };
d535c8a69 Florian Westphal 2018-12-06 33
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 34 /* per conntrack: protocol private data */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 35 union nf_conntrack_proto {
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 36 /* insert conntrack proto private data here */
2bc780499 Patrick McHardy 2008-03-20 37 struct nf_ct_dccp dccp;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 38 struct ip_ct_sctp sctp;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 39 struct ip_ct_tcp tcp;
d535c8a69 Florian Westphal 2018-12-06 40 struct nf_ct_udp udp;
f09943fef Patrick McHardy 2006-12-02 41 struct nf_ct_gre gre;
c74454fad Florian Westphal 2017-01-23 42 unsigned int tmpl_padto;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 43 };
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 44
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 45 union nf_conntrack_expect_proto {
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 46 /* insert expect proto private data here */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 47 };
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 48
a0ae2562c Florian Westphal 2018-06-29 49 struct nf_conntrack_net {
a0ae2562c Florian Westphal 2018-06-29 50 unsigned int users4;
a0ae2562c Florian Westphal 2018-06-29 51 unsigned int users6;
a0ae2562c Florian Westphal 2018-06-29 52 };
a0ae2562c Florian Westphal 2018-06-29 53
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 54 #include <linux/types.h>
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 55 #include <linux/skbuff.h>
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 56
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 57 #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
f8eb24a89 Patrick McHardy 2006-11-29 58 #include <net/netfilter/ipv6/nf_conntrack_ipv6.h>
f8eb24a89 Patrick McHardy 2006-11-29 59
ea781f197 Eric Dumazet 2009-03-25 60 struct nf_conn {
f330a7fdb Florian Westphal 2016-08-25 61 /* Usage count in here is 1 for hash table, 1 per skb,
b476b72a0 Jesper Dangaard Brouer 2014-03-03 62 * plus 1 for any connection(s) we are `master' for
b476b72a0 Jesper Dangaard Brouer 2014-03-03 63 *
a9e419dc7 Florian Westphal 2017-01-23 64 * Hint, SKB address this struct and refcnt via skb->_nfct and
b476b72a0 Jesper Dangaard Brouer 2014-03-03 65 * helpers nf_conntrack_get() and nf_conntrack_put().
b476b72a0 Jesper Dangaard Brouer 2014-03-03 66 * Helper nf_ct_put() equals nf_conntrack_put() by dec refcnt,
b476b72a0 Jesper Dangaard Brouer 2014-03-03 67 * beware nf_ct_get() is different and don't inc refcnt.
b476b72a0 Jesper Dangaard Brouer 2014-03-03 68 */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 @69 struct nf_conntrack ct_general;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 70
440f0d588 Patrick McHardy 2009-06-10 71 spinlock_t lock;
b7779d06f Jesper Dangaard Brouer 2014-03-03 72 u16 cpu;
440f0d588 Patrick McHardy 2009-06-10 73
6c8dee984 Florian Westphal 2016-06-11 74 #ifdef CONFIG_NF_CONNTRACK_ZONES
6c8dee984 Florian Westphal 2016-06-11 75 struct nf_conntrack_zone zone;
6c8dee984 Florian Westphal 2016-06-11 76 #endif
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 77 /* XXX should I move this to the tail ? - Y.K */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 78 /* These are my tuples; original and reply */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 79 struct nf_conntrack_tuple_hash tuplehash[IP_CT_DIR_MAX];
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 80
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 81 /* Have we seen traffic both ways yet? (bitset) */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 82 unsigned long status;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 83
f330a7fdb Florian Westphal 2016-08-25 84 /* jiffies32 when this ct is considered dead */
f330a7fdb Florian Westphal 2016-08-25 85 u32 timeout;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 86
0c5c9fb55 Eric W. Biederman 2015-03-11 87 possible_net_t ct_net;
0c5c9fb55 Eric W. Biederman 2015-03-11 88
5173bc679 Florian Westphal 2016-11-23 89 #if IS_ENABLED(CONFIG_NF_NAT)
e1bf16877 Florian Westphal 2017-09-06 90 struct hlist_node nat_bysource;
5173bc679 Florian Westphal 2016-11-23 91 #endif
c41884ce0 Florian Westphal 2014-11-24 92 /* all members below initialized via memset */
c41884ce0 Florian Westphal 2014-11-24 93 u8 __nfct_init_offset[0];
c41884ce0 Florian Westphal 2014-11-24 94
c41884ce0 Florian Westphal 2014-11-24 95 /* If we were expected by an expectation, this will be it */
c41884ce0 Florian Westphal 2014-11-24 96 struct nf_conn *master;
c41884ce0 Florian Westphal 2014-11-24 97
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 98 #if defined(CONFIG_NF_CONNTRACK_MARK)
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 99 u_int32_t mark;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 100 #endif
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 101
7c9728c39 James Morris 2006-06-09 102 #ifdef CONFIG_NF_CONNTRACK_SECMARK
7c9728c39 James Morris 2006-06-09 103 u_int32_t secmark;
7c9728c39 James Morris 2006-06-09 104 #endif
7c9728c39 James Morris 2006-06-09 105
ecfab2c9f Yasuyuki Kozakai 2007-07-07 106 /* Extensions */
ecfab2c9f Yasuyuki Kozakai 2007-07-07 107 struct nf_ct_ext *ext;
e5fc9e7a6 Changli Gao 2010-11-12 108
e5fc9e7a6 Changli Gao 2010-11-12 109 /* Storage reserved for other modules, must be the last member */
e5fc9e7a6 Changli Gao 2010-11-12 110 union nf_conntrack_proto proto;
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 111 };
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 112
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 113 static inline struct nf_conn *
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 114 nf_ct_tuplehash_to_ctrack(const struct nf_conntrack_tuple_hash *hash)
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 115 {
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 116 return container_of(hash, struct nf_conn,
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 117 tuplehash[hash->tuple.dst.dir]);
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 118 }
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 119
5e8fbe2ac Patrick McHardy 2008-04-14 120 static inline u_int16_t nf_ct_l3num(const struct nf_conn *ct)
5e8fbe2ac Patrick McHardy 2008-04-14 121 {
5e8fbe2ac Patrick McHardy 2008-04-14 122 return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
5e8fbe2ac Patrick McHardy 2008-04-14 123 }
5e8fbe2ac Patrick McHardy 2008-04-14 124
5e8fbe2ac Patrick McHardy 2008-04-14 125 static inline u_int8_t nf_ct_protonum(const struct nf_conn *ct)
5e8fbe2ac Patrick McHardy 2008-04-14 126 {
5e8fbe2ac Patrick McHardy 2008-04-14 127 return ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
5e8fbe2ac Patrick McHardy 2008-04-14 128 }
5e8fbe2ac Patrick McHardy 2008-04-14 129
f2f3e38c6 Pablo Neira Ayuso 2009-06-02 130 #define nf_ct_tuple(ct, dir) (&(ct)->tuplehash[dir].tuple)
f2f3e38c6 Pablo Neira Ayuso 2009-06-02 131
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 132 /* get master conntrack via master expectation */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 133 #define master_ct(conntr) (conntr->master)
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 134
5a1fb391d Alexey Dobriyan 2008-10-08 135 extern struct net init_net;
5a1fb391d Alexey Dobriyan 2008-10-08 136
5a1fb391d Alexey Dobriyan 2008-10-08 137 static inline struct net *nf_ct_net(const struct nf_conn *ct)
5a1fb391d Alexey Dobriyan 2008-10-08 138 {
c2d9ba9bc Eric Dumazet 2010-06-01 139 return read_pnet(&ct->ct_net);
5a1fb391d Alexey Dobriyan 2008-10-08 140 }
5a1fb391d Alexey Dobriyan 2008-10-08 141
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 142 /* Alter reply tuple (maybe alter helper). */
4e77be463 Joe Perches 2013-09-23 143 void nf_conntrack_alter_reply(struct nf_conn *ct,
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 144 const struct nf_conntrack_tuple *newreply);
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 145
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 146 /* Is this tuple taken? (ignoring any belonging to the given
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 147 conntrack). */
4e77be463 Joe Perches 2013-09-23 148 int nf_conntrack_tuple_taken(const struct nf_conntrack_tuple *tuple,
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 149 const struct nf_conn *ignored_conntrack);
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 150
303223092 Florian Westphal 2017-01-23 151 #define NFCT_INFOMASK 7UL
a9e419dc7 Florian Westphal 2017-01-23 152 #define NFCT_PTRMASK ~(NFCT_INFOMASK)
303223092 Florian Westphal 2017-01-23 153
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 154 /* Return conntrack_info and tuple hash for given skb. */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 155 static inline struct nf_conn *
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 156 nf_ct_get(const struct sk_buff *skb, enum ip_conntrack_info *ctinfo)
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 157 {
a9e419dc7 Florian Westphal 2017-01-23 @158 *ctinfo = skb->_nfct & NFCT_INFOMASK;
a9e419dc7 Florian Westphal 2017-01-23 159
a9e419dc7 Florian Westphal 2017-01-23 @160 return (struct nf_conn *)(skb->_nfct & NFCT_PTRMASK);
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 @161 }
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 162
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 163 /* decrement reference count on a conntrack */
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 164 static inline void nf_ct_put(struct nf_conn *ct)
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 165 {
44d6e2f27 Varsha Rao 2017-08-30 166 WARN_ON(!ct);
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 @167 nf_conntrack_put(&ct->ct_general);
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 168 }
9fb9cbb10 Yasuyuki Kozakai 2005-11-09 169
:::::: The code at line 69 was first introduced by commit
:::::: 9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1 [NETFILTER]: Add nf_conntrack subsystem.
:::::: TO: Yasuyuki Kozakai <yasuyuki.kozakai@...hiba.co.jp>
:::::: CC: David S. Miller <davem@...emloft.net>
---
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