Release 4.7 include/net/netfilter/nf_conntrack_tuple.h
/*
* Definitions and Declarations for tuple.
*
* 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
* - generalize L3 protocol dependent part.
*
* Derived from include/linux/netfiter_ipv4/ip_conntrack_tuple.h
*/
#ifndef _NF_CONNTRACK_TUPLE_H
#define _NF_CONNTRACK_TUPLE_H
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/nf_conntrack_tuple_common.h>
#include <linux/list_nulls.h>
/* A `tuple' is a structure containing the information to uniquely
identify a connection. ie. if two packets have the same tuple, they
are in the same connection; if not, they are not.
We divide the structure along "manipulatable" and
"non-manipulatable" lines, for the benefit of the NAT code.
*/
#define NF_CT_TUPLE_L3SIZE ARRAY_SIZE(((union nf_inet_addr *)NULL)->all)
/* The manipulable part of the tuple. */
struct nf_conntrack_man {
union nf_inet_addr u3;
union nf_conntrack_man_proto u;
/* Layer 3 protocol */
u_int16_t l3num;
};
/* This contains the information to distinguish a connection. */
struct nf_conntrack_tuple {
struct nf_conntrack_man src;
/* These are the parts of the tuple which are fixed. */
struct {
union nf_inet_addr u3;
union {
/* Add other protocols here. */
__be16 all;
struct {
__be16 port;
}
tcp;
struct {
__be16 port;
}
udp;
struct {
u_int8_t type, code;
}
icmp;
struct {
__be16 port;
}
dccp;
struct {
__be16 port;
}
sctp;
struct {
__be16 key;
}
gre;
}
u;
/* The protocol. */
u_int8_t protonum;
/* The direction (for tuplehash) */
u_int8_t dir;
}
dst;
};
struct nf_conntrack_tuple_mask {
struct {
union nf_inet_addr u3;
union nf_conntrack_man_proto u;
}
src;
};
static inline void nf_ct_dump_tuple_ip(const struct nf_conntrack_tuple *t)
{
#ifdef DEBUG
printk("tuple %p: %u %pI4:%hu -> %pI4:%hu\n",
t, t->dst.protonum,
&t->src.u3.ip, ntohs(t->src.u.all),
&t->dst.u3.ip, ntohs(t->dst.u.all));
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 68 | 95.77% | 1 | 50.00% |
| harvey harrison | harvey harrison | 3 | 4.23% | 1 | 50.00% |
| Total | 71 | 100.00% | 2 | 100.00% |
static inline void nf_ct_dump_tuple_ipv6(const struct nf_conntrack_tuple *t)
{
#ifdef DEBUG
printk("tuple %p: %u %pI6 %hu -> %pI6 %hu\n",
t, t->dst.protonum,
t->src.u3.all, ntohs(t->src.u.all),
t->dst.u3.all, ntohs(t->dst.u.all));
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 68 | 98.55% | 1 | 50.00% |
| harvey harrison | harvey harrison | 1 | 1.45% | 1 | 50.00% |
| Total | 69 | 100.00% | 2 | 100.00% |
static inline void nf_ct_dump_tuple(const struct nf_conntrack_tuple *t)
{
switch (t->src.l3num) {
case AF_INET:
nf_ct_dump_tuple_ip(t);
break;
case AF_INET6:
nf_ct_dump_tuple_ipv6(t);
break;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 41 | 100.00% | 1 | 100.00% |
| Total | 41 | 100.00% | 1 | 100.00% |
/* If we're the first tuple, it's the original dir. */
#define NF_CT_DIRECTION(h) \
((enum ip_conntrack_dir)(h)->tuple.dst.dir)
/* Connections have two entries in the hash table: one for each way */
struct nf_conntrack_tuple_hash {
struct hlist_nulls_node hnnode;
struct nf_conntrack_tuple tuple;
};
static inline bool __nf_ct_tuple_src_equal(const struct nf_conntrack_tuple *t1,
const struct nf_conntrack_tuple *t2)
{
return (nf_inet_addr_cmp(&t1->src.u3, &t2->src.u3) &&
t1->src.u.all == t2->src.u.all &&
t1->src.l3num == t2->src.l3num);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 59 | 88.06% | 1 | 25.00% |
| patrick mchardy | patrick mchardy | 7 | 10.45% | 2 | 50.00% |
| jan engelhardt | jan engelhardt | 1 | 1.49% | 1 | 25.00% |
| Total | 67 | 100.00% | 4 | 100.00% |
static inline bool __nf_ct_tuple_dst_equal(const struct nf_conntrack_tuple *t1,
const struct nf_conntrack_tuple *t2)
{
return (nf_inet_addr_cmp(&t1->dst.u3, &t2->dst.u3) &&
t1->dst.u.all == t2->dst.u.all &&
t1->dst.protonum == t2->dst.protonum);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 59 | 88.06% | 1 | 25.00% |
| patrick mchardy | patrick mchardy | 7 | 10.45% | 2 | 50.00% |
| jan engelhardt | jan engelhardt | 1 | 1.49% | 1 | 25.00% |
| Total | 67 | 100.00% | 4 | 100.00% |
static inline bool nf_ct_tuple_equal(const struct nf_conntrack_tuple *t1,
const struct nf_conntrack_tuple *t2)
{
return __nf_ct_tuple_src_equal(t1, t2) &&
__nf_ct_tuple_dst_equal(t1, t2);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 31 | 91.18% | 1 | 33.33% |
| patrick mchardy | patrick mchardy | 2 | 5.88% | 1 | 33.33% |
| jan engelhardt | jan engelhardt | 1 | 2.94% | 1 | 33.33% |
| Total | 34 | 100.00% | 3 | 100.00% |
static inline bool
nf_ct_tuple_mask_equal(const struct nf_conntrack_tuple_mask *m1,
const struct nf_conntrack_tuple_mask *m2)
{
return (nf_inet_addr_cmp(&m1->src.u3, &m2->src.u3) &&
m1->src.u.all == m2->src.u.all);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 40 | 72.73% | 2 | 50.00% |
| yasuyuki kozakai | yasuyuki kozakai | 14 | 25.45% | 1 | 25.00% |
| jan engelhardt | jan engelhardt | 1 | 1.82% | 1 | 25.00% |
| Total | 55 | 100.00% | 4 | 100.00% |
static inline bool
nf_ct_tuple_src_mask_cmp(const struct nf_conntrack_tuple *t1,
const struct nf_conntrack_tuple *t2,
const struct nf_conntrack_tuple_mask *mask)
{
int count;
for (count = 0; count < NF_CT_TUPLE_L3SIZE; count++) {
if ((t1->src.u3.all[count] ^ t2->src.u3.all[count]) &
mask->src.u3.all[count])
return false;
}
if ((t1->src.u.all ^ t2->src.u.all) & mask->src.u.all)
return false;
if (t1->src.l3num != t2->src.l3num ||
t1->dst.protonum != t2->dst.protonum)
return false;
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 97 | 66.44% | 1 | 33.33% |
| patrick mchardy | patrick mchardy | 44 | 30.14% | 1 | 33.33% |
| jan engelhardt | jan engelhardt | 5 | 3.42% | 1 | 33.33% |
| Total | 146 | 100.00% | 3 | 100.00% |
static inline bool
nf_ct_tuple_mask_cmp(const struct nf_conntrack_tuple *t,
const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_tuple_mask *mask)
{
return nf_ct_tuple_src_mask_cmp(t, tuple, mask) &&
__nf_ct_tuple_dst_equal(t, tuple);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 41 | 97.62% | 2 | 66.67% |
| jan engelhardt | jan engelhardt | 1 | 2.38% | 1 | 33.33% |
| Total | 42 | 100.00% | 3 | 100.00% |
#endif /* _NF_CONNTRACK_TUPLE_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| yasuyuki kozakai | yasuyuki kozakai | 379 | 49.74% | 1 | 6.67% |
| patrick mchardy | patrick mchardy | 356 | 46.72% | 8 | 53.33% |
| jan engelhardt | jan engelhardt | 17 | 2.23% | 2 | 13.33% |
| eric dumazet | eric dumazet | 5 | 0.66% | 1 | 6.67% |
| harvey harrison | harvey harrison | 4 | 0.52% | 2 | 13.33% |
| al viro | al viro | 1 | 0.13% | 1 | 6.67% |
| Total | 762 | 100.00% | 15 | 100.00% |
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