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[NETFILTER]: nf_nat: move NAT ctnetlink helpers to nf_nat_proto_common

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Move to nf_nat_proto_common and rename to nf_nat_proto_... since they're
also used by protocols that don't have port numbers.

Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Patrick McHardy 2008-04-14 11:15:47 +02:00
parent 5abd363f73
commit 535b57c7c1
7 changed files with 50 additions and 52 deletions
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8
include/net/netfilter/nf_nat_protocol.h
View File

@ -73,9 +73,9 @@ extern int nf_nat_proto_unique_tuple(struct nf_conntrack_tuple *tuple,
const struct nf_conn *ct,
u_int16_t *rover);
extern int nf_nat_port_range_to_nlattr(struct sk_buff *skb,
const struct nf_nat_range *range);
extern int nf_nat_port_nlattr_to_range(struct nlattr *tb[],
struct nf_nat_range *range);
extern int nf_nat_proto_range_to_nlattr(struct sk_buff *skb,
const struct nf_nat_range *range);
extern int nf_nat_proto_nlattr_to_range(struct nlattr *tb[],
struct nf_nat_range *range);
#endif /*_NF_NAT_PROTO_H*/

40
net/ipv4/netfilter/nf_nat_core.c
View File

@ -544,46 +544,6 @@ void nf_nat_protocol_unregister(const struct nf_nat_protocol *proto)
}
EXPORT_SYMBOL(nf_nat_protocol_unregister);
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
int
nf_nat_port_range_to_nlattr(struct sk_buff *skb,
const struct nf_nat_range *range)
{
NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MIN, range->min.tcp.port);
NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MAX, range->max.tcp.port);
return 0;
nla_put_failure:
return -1;
}
EXPORT_SYMBOL_GPL(nf_nat_port_nlattr_to_range);
int
nf_nat_port_nlattr_to_range(struct nlattr *tb[], struct nf_nat_range *range)
{
int ret = 0;
/* we have to return whether we actually parsed something or not */
if (tb[CTA_PROTONAT_PORT_MIN]) {
ret = 1;
range->min.tcp.port = nla_get_be16(tb[CTA_PROTONAT_PORT_MIN]);
}
if (!tb[CTA_PROTONAT_PORT_MAX]) {
if (ret)
range->max.tcp.port = range->min.tcp.port;
} else {
ret = 1;
range->max.tcp.port = nla_get_be16(tb[CTA_PROTONAT_PORT_MAX]);
}
return ret;
}
EXPORT_SYMBOL_GPL(nf_nat_port_range_to_nlattr);
#endif
/* Noone using conntrack by the time this called. */
static void nf_nat_cleanup_conntrack(struct nf_conn *ct)
{

38
net/ipv4/netfilter/nf_nat_proto_common.c
View File

@ -88,3 +88,41 @@ int nf_nat_proto_unique_tuple(struct nf_conntrack_tuple *tuple,
return 0;
}
EXPORT_SYMBOL_GPL(nf_nat_proto_unique_tuple);
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
int nf_nat_proto_range_to_nlattr(struct sk_buff *skb,
const struct nf_nat_range *range)
{
NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MIN, range->min.all);
NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MAX, range->max.all);
return 0;
nla_put_failure:
return -1;
}
EXPORT_SYMBOL_GPL(nf_nat_proto_nlattr_to_range);
int nf_nat_proto_nlattr_to_range(struct nlattr *tb[],
struct nf_nat_range *range)
{
int ret = 0;
/* we have to return whether we actually parsed something or not */
if (tb[CTA_PROTONAT_PORT_MIN]) {
ret = 1;
range->min.all = nla_get_be16(tb[CTA_PROTONAT_PORT_MIN]);
}
if (!tb[CTA_PROTONAT_PORT_MAX]) {
if (ret)
range->max.all = range->min.all;
} else {
ret = 1;
range->max.all = nla_get_be16(tb[CTA_PROTONAT_PORT_MAX]);
}
return ret;
}
EXPORT_SYMBOL_GPL(nf_nat_proto_range_to_nlattr);
#endif

4
net/ipv4/netfilter/nf_nat_proto_gre.c
View File

@ -125,8 +125,8 @@ static const struct nf_nat_protocol gre = {
.in_range = nf_nat_proto_in_range,
.unique_tuple = gre_unique_tuple,
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
.range_to_nlattr = nf_nat_port_range_to_nlattr,
.nlattr_to_range = nf_nat_port_nlattr_to_range,
.range_to_nlattr = nf_nat_proto_range_to_nlattr,
.nlattr_to_range = nf_nat_proto_nlattr_to_range,
#endif
};

4
net/ipv4/netfilter/nf_nat_proto_icmp.c
View File

@ -79,7 +79,7 @@ const struct nf_nat_protocol nf_nat_protocol_icmp = {
.in_range = icmp_in_range,
.unique_tuple = icmp_unique_tuple,
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
.range_to_nlattr = nf_nat_port_range_to_nlattr,
.nlattr_to_range = nf_nat_port_nlattr_to_range,
.range_to_nlattr = nf_nat_proto_range_to_nlattr,
.nlattr_to_range = nf_nat_proto_nlattr_to_range,
#endif
};

4
net/ipv4/netfilter/nf_nat_proto_tcp.c
View File

@ -88,7 +88,7 @@ const struct nf_nat_protocol nf_nat_protocol_tcp = {
.in_range = nf_nat_proto_in_range,
.unique_tuple = tcp_unique_tuple,
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
.range_to_nlattr = nf_nat_port_range_to_nlattr,
.nlattr_to_range = nf_nat_port_nlattr_to_range,
.range_to_nlattr = nf_nat_proto_range_to_nlattr,
.nlattr_to_range = nf_nat_proto_nlattr_to_range,
#endif
};

4
net/ipv4/netfilter/nf_nat_proto_udp.c
View File

@ -79,7 +79,7 @@ const struct nf_nat_protocol nf_nat_protocol_udp = {
.in_range = nf_nat_proto_in_range,
.unique_tuple = udp_unique_tuple,
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
.range_to_nlattr = nf_nat_port_range_to_nlattr,
.nlattr_to_range = nf_nat_port_nlattr_to_range,
.range_to_nlattr = nf_nat_proto_range_to_nlattr,
.nlattr_to_range = nf_nat_proto_nlattr_to_range,
#endif
};