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[NETFILTER]: Introduce nf_inet_address 

A few netfilter modules provide their own union of IPv4 and IPv6
address storage. Will unify that in this patch series.

(1/4): Rename union nf_conntrack_address to union nf_inet_addr and
move it to x_tables.h.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jan Engelhardt 2007-12-17 22:43:50 -08:00 committed by David S. Miller
parent df54aae022
commit 643a2c15a4
10 changed files with 55 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/linux/netfilter.h
View File

@ -48,6 +48,12 @@ enum nf_inet_hooks {
NF_INET_NUMHOOKS
};
union nf_inet_addr {
u_int32_t all[4];
__be32 ip;
__be32 ip6[4];
};
#ifdef __KERNEL__
#ifdef CONFIG_NETFILTER

6
include/linux/netfilter/nf_conntrack_h323.h
View File

@ -31,7 +31,7 @@ struct nf_conn;
extern int get_h225_addr(struct nf_conn *ct, unsigned char *data,
TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 *port);
union nf_inet_addr *addr, __be16 *port);
extern void nf_conntrack_h245_expect(struct nf_conn *new,
struct nf_conntrack_expect *this);
extern void nf_conntrack_q931_expect(struct nf_conn *new,
@ -39,12 +39,12 @@ extern void nf_conntrack_q931_expect(struct nf_conn *new,
extern int (*set_h245_addr_hook) (struct sk_buff *skb,
unsigned char **data, int dataoff,
H245_TransportAddress *taddr,
union nf_conntrack_address *addr,
union nf_inet_addr *addr,
__be16 port);
extern int (*set_h225_addr_hook) (struct sk_buff *skb,
unsigned char **data, int dataoff,
TransportAddress *taddr,
union nf_conntrack_address *addr,
union nf_inet_addr *addr,
__be16 port);
extern int (*set_sig_addr_hook) (struct sk_buff *skb,
struct nf_conn *ct,

4
include/net/netfilter/nf_conntrack_expect.h
View File

@ -73,8 +73,8 @@ void nf_ct_unexpect_related(struct nf_conntrack_expect *exp);
nf_ct_expect_related. You will have to call put afterwards. */
struct nf_conntrack_expect *nf_ct_expect_alloc(struct nf_conn *me);
void nf_ct_expect_init(struct nf_conntrack_expect *, int,
union nf_conntrack_address *,
union nf_conntrack_address *,
union nf_inet_addr *,
union nf_inet_addr *,
u_int8_t, __be16 *, __be16 *);
void nf_ct_expect_put(struct nf_conntrack_expect *exp);
int nf_ct_expect_related(struct nf_conntrack_expect *expect);

17
include/net/netfilter/nf_conntrack_tuple.h
View File

@ -10,6 +10,7 @@
#ifndef _NF_CONNTRACK_TUPLE_H
#define _NF_CONNTRACK_TUPLE_H
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/nf_conntrack_tuple_common.h>
/* A `tuple' is a structure containing the information to uniquely
@ -20,15 +21,7 @@
"non-manipulatable" lines, for the benefit of the NAT code.
*/
#define NF_CT_TUPLE_L3SIZE 4
/* The l3 protocol-specific manipulable parts of the tuple: always in
network order! */
union nf_conntrack_address {
u_int32_t all[NF_CT_TUPLE_L3SIZE];
__be32 ip;
__be32 ip6[4];
};
#define NF_CT_TUPLE_L3SIZE ARRAY_SIZE(((union nf_inet_addr *)NULL)->all)
/* The protocol-specific manipulable parts of the tuple: always in
network order! */
@ -57,7 +50,7 @@ union nf_conntrack_man_proto
/* The manipulable part of the tuple. */
struct nf_conntrack_man
{
union nf_conntrack_address u3;
union nf_inet_addr u3;
union nf_conntrack_man_proto u;
/* Layer 3 protocol */
u_int16_t l3num;
@ -70,7 +63,7 @@ struct nf_conntrack_tuple
/* These are the parts of the tuple which are fixed. */
struct {
union nf_conntrack_address u3;
union nf_inet_addr u3;
union {
/* Add other protocols here. */
__be16 all;
@ -103,7 +96,7 @@ struct nf_conntrack_tuple
struct nf_conntrack_tuple_mask
{
struct {
union nf_conntrack_address u3;
union nf_inet_addr u3;
union nf_conntrack_man_proto u;
} src;
};

10
net/ipv4/netfilter/nf_nat_h323.c
View File

@ -76,7 +76,7 @@ static int set_addr(struct sk_buff *skb,
static int set_h225_addr(struct sk_buff *skb,
unsigned char **data, int dataoff,
TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 port)
union nf_inet_addr *addr, __be16 port)
{
return set_addr(skb, data, dataoff, taddr->ipAddress.ip,
addr->ip, port);
@ -86,7 +86,7 @@ static int set_h225_addr(struct sk_buff *skb,
static int set_h245_addr(struct sk_buff *skb,
unsigned char **data, int dataoff,
H245_TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 port)
union nf_inet_addr *addr, __be16 port)
{
return set_addr(skb, data, dataoff,
taddr->unicastAddress.iPAddress.network,
@ -103,7 +103,7 @@ static int set_sig_addr(struct sk_buff *skb, struct nf_conn *ct,
int dir = CTINFO2DIR(ctinfo);
int i;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
for (i = 0; i < count; i++) {
if (get_h225_addr(ct, *data, &taddr[i], &addr, &port)) {
@ -155,7 +155,7 @@ static int set_ras_addr(struct sk_buff *skb, struct nf_conn *ct,
int dir = CTINFO2DIR(ctinfo);
int i;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
for (i = 0; i < count; i++) {
if (get_h225_addr(ct, *data, &taddr[i], &addr, &port) &&
@ -408,7 +408,7 @@ static int nat_q931(struct sk_buff *skb, struct nf_conn *ct,
struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
int dir = CTINFO2DIR(ctinfo);
u_int16_t nated_port = ntohs(port);
union nf_conntrack_address addr;
union nf_inet_addr addr;
/* Set expectations for NAT */
exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;

4
net/netfilter/nf_conntrack_expect.c
View File

@ -226,8 +226,8 @@ struct nf_conntrack_expect *nf_ct_expect_alloc(struct nf_conn *me)
EXPORT_SYMBOL_GPL(nf_ct_expect_alloc);
void nf_ct_expect_init(struct nf_conntrack_expect *exp, int family,
union nf_conntrack_address *saddr,
union nf_conntrack_address *daddr,
union nf_inet_addr *saddr,
union nf_inet_addr *daddr,
u_int8_t proto, __be16 *src, __be16 *dst)
{
int len;

2
net/netfilter/nf_conntrack_ftp.c
View File

@ -358,7 +358,7 @@ static int help(struct sk_buff *skb,
unsigned int matchlen, matchoff;
struct nf_ct_ftp_master *ct_ftp_info = &nfct_help(ct)->help.ct_ftp_info;
struct nf_conntrack_expect *exp;
union nf_conntrack_address *daddr;
union nf_inet_addr *daddr;
struct nf_conntrack_man cmd = {};
unsigned int i;
int found = 0, ends_in_nl;

34
net/netfilter/nf_conntrack_h323_main.c
View File

@ -50,12 +50,12 @@ MODULE_PARM_DESC(callforward_filter, "only create call forwarding expectations "
int (*set_h245_addr_hook) (struct sk_buff *skb,
unsigned char **data, int dataoff,
H245_TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 port)
union nf_inet_addr *addr, __be16 port)
__read_mostly;
int (*set_h225_addr_hook) (struct sk_buff *skb,
unsigned char **data, int dataoff,
TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 port)
union nf_inet_addr *addr, __be16 port)
__read_mostly;
int (*set_sig_addr_hook) (struct sk_buff *skb,
struct nf_conn *ct,
@ -214,7 +214,7 @@ static int get_tpkt_data(struct sk_buff *skb, unsigned int protoff,
/****************************************************************************/
static int get_h245_addr(struct nf_conn *ct, unsigned char *data,
H245_TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 *port)
union nf_inet_addr *addr, __be16 *port)
{
unsigned char *p;
int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
@ -257,7 +257,7 @@ static int expect_rtp_rtcp(struct sk_buff *skb, struct nf_conn *ct,
int ret = 0;
__be16 port;
__be16 rtp_port, rtcp_port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *rtp_exp;
struct nf_conntrack_expect *rtcp_exp;
typeof(nat_rtp_rtcp_hook) nat_rtp_rtcp;
@ -330,7 +330,7 @@ static int expect_t120(struct sk_buff *skb,
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
typeof(nat_t120_hook) nat_t120;
@ -623,7 +623,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_h245 __read_mostly = {
/****************************************************************************/
int get_h225_addr(struct nf_conn *ct, unsigned char *data,
TransportAddress *taddr,
union nf_conntrack_address *addr, __be16 *port)
union nf_inet_addr *addr, __be16 *port)
{
unsigned char *p;
int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
@ -662,7 +662,7 @@ static int expect_h245(struct sk_buff *skb, struct nf_conn *ct,
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
typeof(nat_h245_hook) nat_h245;
@ -704,8 +704,8 @@ static int expect_h245(struct sk_buff *skb, struct nf_conn *ct,
/* If the calling party is on the same side of the forward-to party,
* we don't need to track the second call */
static int callforward_do_filter(union nf_conntrack_address *src,
union nf_conntrack_address *dst,
static int callforward_do_filter(union nf_inet_addr *src,
union nf_inet_addr *dst,
int family)
{
const struct nf_afinfo *afinfo;
@ -772,7 +772,7 @@ static int expect_callforwarding(struct sk_buff *skb,
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
typeof(nat_callforwarding_hook) nat_callforwarding;
@ -828,7 +828,7 @@ static int process_setup(struct sk_buff *skb, struct nf_conn *ct,
int ret;
int i;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
typeof(set_h225_addr_hook) set_h225_addr;
pr_debug("nf_ct_q931: Setup\n");
@ -1200,7 +1200,7 @@ static unsigned char *get_udp_data(struct sk_buff *skb, unsigned int protoff,
/****************************************************************************/
static struct nf_conntrack_expect *find_expect(struct nf_conn *ct,
union nf_conntrack_address *addr,
union nf_inet_addr *addr,
__be16 port)
{
struct nf_conntrack_expect *exp;
@ -1242,7 +1242,7 @@ static int expect_q931(struct sk_buff *skb, struct nf_conn *ct,
int ret = 0;
int i;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
typeof(nat_q931_hook) nat_q931;
@ -1311,7 +1311,7 @@ static int process_gcf(struct sk_buff *skb, struct nf_conn *ct,
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
pr_debug("nf_ct_ras: GCF\n");
@ -1471,7 +1471,7 @@ static int process_arq(struct sk_buff *skb, struct nf_conn *ct,
struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
int dir = CTINFO2DIR(ctinfo);
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
typeof(set_h225_addr_hook) set_h225_addr;
pr_debug("nf_ct_ras: ARQ\n");
@ -1513,7 +1513,7 @@ static int process_acf(struct sk_buff *skb, struct nf_conn *ct,
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
typeof(set_sig_addr_hook) set_sig_addr;
@ -1576,7 +1576,7 @@ static int process_lcf(struct sk_buff *skb, struct nf_conn *ct,
int dir = CTINFO2DIR(ctinfo);
int ret = 0;
__be16 port;
union nf_conntrack_address addr;
union nf_inet_addr addr;
struct nf_conntrack_expect *exp;
pr_debug("nf_ct_ras: LCF\n");

8
net/netfilter/nf_conntrack_sip.c
View File

@ -247,7 +247,7 @@ static int skp_digits_len(struct nf_conn *ct, const char *dptr,
}
static int parse_addr(struct nf_conn *ct, const char *cp, const char **endp,
union nf_conntrack_address *addr, const char *limit)
union nf_inet_addr *addr, const char *limit)
{
const char *end;
int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
@ -275,7 +275,7 @@ static int parse_addr(struct nf_conn *ct, const char *cp, const char **endp,
static int epaddr_len(struct nf_conn *ct, const char *dptr,
const char *limit, int *shift)
{
union nf_conntrack_address addr;
union nf_inet_addr addr;
const char *aux = dptr;
if (!parse_addr(ct, dptr, &dptr, &addr, limit)) {
@ -366,7 +366,7 @@ EXPORT_SYMBOL_GPL(ct_sip_get_info);
static int set_expected_rtp(struct sk_buff *skb,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
union nf_conntrack_address *addr,
union nf_inet_addr *addr,
__be16 port,
const char *dptr)
{
@ -403,7 +403,7 @@ static int sip_help(struct sk_buff *skb,
enum ip_conntrack_info ctinfo)
{
int family = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num;
union nf_conntrack_address addr;
union nf_inet_addr addr;
unsigned int dataoff, datalen;
const char *dptr;
int ret = NF_ACCEPT;

20
net/netfilter/xt_connlimit.c
View File

@ -53,10 +53,10 @@ static inline unsigned int connlimit_iphash(__be32 addr)
}
static inline unsigned int
connlimit_iphash6(const union nf_conntrack_address *addr,
const union nf_conntrack_address *mask)
connlimit_iphash6(const union nf_inet_addr *addr,
const union nf_inet_addr *mask)
{
union nf_conntrack_address res;
union nf_inet_addr res;
unsigned int i;
if (unlikely(!connlimit_rnd_inited)) {
@ -81,14 +81,14 @@ static inline bool already_closed(const struct nf_conn *conn)
}
static inline unsigned int
same_source_net(const union nf_conntrack_address *addr,
const union nf_conntrack_address *mask,
const union nf_conntrack_address *u3, unsigned int family)
same_source_net(const union nf_inet_addr *addr,
const union nf_inet_addr *mask,
const union nf_inet_addr *u3, unsigned int family)
{
if (family == AF_INET) {
return (addr->ip & mask->ip) == (u3->ip & mask->ip);
} else {
union nf_conntrack_address lh, rh;
union nf_inet_addr lh, rh;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(addr->ip6); ++i) {
@ -102,8 +102,8 @@ same_source_net(const union nf_conntrack_address *addr,
static int count_them(struct xt_connlimit_data *data,
const struct nf_conntrack_tuple *tuple,
const union nf_conntrack_address *addr,
const union nf_conntrack_address *mask,
const union nf_inet_addr *addr,
const union nf_inet_addr *mask,
const struct xt_match *match)
{
struct nf_conntrack_tuple_hash *found;
@ -185,7 +185,7 @@ connlimit_mt(const struct sk_buff *skb, const struct net_device *in,
bool *hotdrop)
{
const struct xt_connlimit_info *info = matchinfo;
union nf_conntrack_address addr, mask;
union nf_inet_addr addr, mask;
struct nf_conntrack_tuple tuple;
const struct nf_conntrack_tuple *tuple_ptr = &tuple;
enum ip_conntrack_info ctinfo;