#include <linux/netfilter/nf_conntrack_h323.h>
/****************************************************************************/
-static int set_addr(struct sk_buff **pskb,
+static int set_addr(struct sk_buff *skb,
unsigned char **data, int dataoff,
unsigned int addroff, __be32 ip, __be16 port)
{
enum ip_conntrack_info ctinfo;
- struct nf_conn *ct = nf_ct_get(*pskb, &ctinfo);
+ struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
struct {
__be32 ip;
__be16 port;
} __attribute__ ((__packed__)) buf;
- struct tcphdr _tcph, *th;
+ const struct tcphdr *th;
+ struct tcphdr _tcph;
buf.ip = ip;
buf.port = port;
addroff += dataoff;
- if (ip_hdr(*pskb)->protocol == IPPROTO_TCP) {
- if (!nf_nat_mangle_tcp_packet(pskb, ct, ctinfo,
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP) {
+ if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo,
addroff, sizeof(buf),
(char *) &buf, sizeof(buf))) {
if (net_ratelimit())
}
/* Relocate data pointer */
- th = skb_header_pointer(*pskb, ip_hdrlen(*pskb),
+ th = skb_header_pointer(skb, ip_hdrlen(skb),
sizeof(_tcph), &_tcph);
if (th == NULL)
return -1;
- *data = (*pskb)->data + ip_hdrlen(*pskb) +
- th->doff * 4 + dataoff;
+ *data = skb->data + ip_hdrlen(skb) + th->doff * 4 + dataoff;
} else {
- if (!nf_nat_mangle_udp_packet(pskb, ct, ctinfo,
+ if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo,
addroff, sizeof(buf),
(char *) &buf, sizeof(buf))) {
if (net_ratelimit())
/* nf_nat_mangle_udp_packet uses skb_make_writable() to copy
* or pull everything in a linear buffer, so we can safely
* use the skb pointers now */
- *data = ((*pskb)->data + ip_hdrlen(*pskb) +
- sizeof(struct udphdr));
+ *data = skb->data + ip_hdrlen(skb) + sizeof(struct udphdr);
}
return 0;
}
/****************************************************************************/
-static int set_h225_addr(struct sk_buff **pskb,
+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(pskb, data, dataoff, taddr->ipAddress.ip,
+ return set_addr(skb, data, dataoff, taddr->ipAddress.ip,
addr->ip, port);
}
/****************************************************************************/
-static int set_h245_addr(struct sk_buff **pskb,
+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(pskb, data, dataoff,
+ return set_addr(skb, data, dataoff,
taddr->unicastAddress.iPAddress.network,
addr->ip, port);
}
/****************************************************************************/
-static int set_sig_addr(struct sk_buff **pskb, struct nf_conn *ct,
+static int set_sig_addr(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data,
TransportAddress *taddr, int count)
{
- struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
+ const struct nf_ct_h323_master *info = &nfct_help(ct)->help.ct_h323_info;
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)) {
NIPQUAD(addr.ip), port,
NIPQUAD(ct->tuplehash[!dir].tuple.dst.u3.ip),
info->sig_port[!dir]);
- return set_h225_addr(pskb, data, 0, &taddr[i],
+ return set_h225_addr(skb, data, 0, &taddr[i],
&ct->tuplehash[!dir].
tuple.dst.u3,
info->sig_port[!dir]);
NIPQUAD(addr.ip), port,
NIPQUAD(ct->tuplehash[!dir].tuple.src.u3.ip),
info->sig_port[!dir]);
- return set_h225_addr(pskb, data, 0, &taddr[i],
+ return set_h225_addr(skb, data, 0, &taddr[i],
&ct->tuplehash[!dir].
tuple.src.u3,
info->sig_port[!dir]);
}
/****************************************************************************/
-static int set_ras_addr(struct sk_buff **pskb, struct nf_conn *ct,
+static int set_ras_addr(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data,
TransportAddress *taddr, int count)
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) &&
NIPQUAD(addr.ip), ntohs(port),
NIPQUAD(ct->tuplehash[!dir].tuple.dst.u3.ip),
ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port));
- return set_h225_addr(pskb, data, 0, &taddr[i],
+ return set_h225_addr(skb, data, 0, &taddr[i],
&ct->tuplehash[!dir].tuple.dst.u3,
ct->tuplehash[!dir].tuple.
dst.u.udp.port);
}
/****************************************************************************/
-static int nat_rtp_rtcp(struct sk_buff **pskb, struct nf_conn *ct,
+static int nat_rtp_rtcp(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, int dataoff,
H245_TransportAddress *taddr,
}
/* Modify signal */
- if (set_h245_addr(pskb, data, dataoff, taddr,
+ if (set_h245_addr(skb, data, dataoff, taddr,
&ct->tuplehash[!dir].tuple.dst.u3,
htons((port & htons(1)) ? nated_port + 1 :
nated_port)) == 0) {
}
/****************************************************************************/
-static int nat_t120(struct sk_buff **pskb, struct nf_conn *ct,
+static int nat_t120(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, int dataoff,
H245_TransportAddress *taddr, __be16 port,
}
/* Modify signal */
- if (set_h245_addr(pskb, data, dataoff, taddr,
+ if (set_h245_addr(skb, data, dataoff, taddr,
&ct->tuplehash[!dir].tuple.dst.u3,
htons(nated_port)) < 0) {
nf_ct_unexpect_related(exp);
}
/****************************************************************************/
-static int nat_h245(struct sk_buff **pskb, struct nf_conn *ct,
+static int nat_h245(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, int dataoff,
TransportAddress *taddr, __be16 port,
}
/* Modify signal */
- if (set_h225_addr(pskb, data, dataoff, taddr,
+ if (set_h225_addr(skb, data, dataoff, taddr,
&ct->tuplehash[!dir].tuple.dst.u3,
htons(nated_port)) == 0) {
/* Save ports */
/* Change src to where master sends to */
range.flags = IP_NAT_RANGE_MAP_IPS;
range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.u3.ip;
-
- /* hook doesn't matter, but it has to do source manip */
- nf_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
+ nf_nat_setup_info(new, &range, IP_NAT_MANIP_SRC);
/* For DST manip, map port here to where it's expected. */
range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
range.min = range.max = this->saved_proto;
range.min_ip = range.max_ip =
new->master->tuplehash[!this->dir].tuple.src.u3.ip;
-
- /* hook doesn't matter, but it has to do destination manip */
- nf_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
+ nf_nat_setup_info(new, &range, IP_NAT_MANIP_DST);
}
/****************************************************************************/
-static int nat_q931(struct sk_buff **pskb, struct nf_conn *ct,
+static int nat_q931(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, TransportAddress *taddr, int idx,
__be16 port, struct nf_conntrack_expect *exp)
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;
}
/* Modify signal */
- if (set_h225_addr(pskb, data, 0, &taddr[idx],
+ if (set_h225_addr(skb, data, 0, &taddr[idx],
&ct->tuplehash[!dir].tuple.dst.u3,
htons(nated_port)) == 0) {
/* Save ports */
if (idx > 0 &&
get_h225_addr(ct, *data, &taddr[0], &addr, &port) &&
(ntohl(addr.ip) & 0xff000000) == 0x7f000000) {
- set_h225_addr(pskb, data, 0, &taddr[0],
+ set_h225_addr(skb, data, 0, &taddr[0],
&ct->tuplehash[!dir].tuple.dst.u3,
info->sig_port[!dir]);
}
/* Change src to where master sends to */
range.flags = IP_NAT_RANGE_MAP_IPS;
range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.u3.ip;
-
- /* hook doesn't matter, but it has to do source manip */
- nf_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
+ nf_nat_setup_info(new, &range, IP_NAT_MANIP_SRC);
/* For DST manip, map port here to where it's expected. */
range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
range.min = range.max = this->saved_proto;
range.min_ip = range.max_ip = this->saved_ip;
-
- /* hook doesn't matter, but it has to do destination manip */
- nf_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
+ nf_nat_setup_info(new, &range, IP_NAT_MANIP_DST);
}
/****************************************************************************/
-static int nat_callforwarding(struct sk_buff **pskb, struct nf_conn *ct,
+static int nat_callforwarding(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned char **data, int dataoff,
TransportAddress *taddr, __be16 port,
}
/* Modify signal */
- if (!set_h225_addr(pskb, data, dataoff, taddr,
+ if (!set_h225_addr(skb, data, dataoff, taddr,
&ct->tuplehash[!dir].tuple.dst.u3,
htons(nated_port)) == 0) {
nf_ct_unexpect_related(exp);
/****************************************************************************/
static int __init init(void)
{
- BUG_ON(rcu_dereference(set_h245_addr_hook) != NULL);
- BUG_ON(rcu_dereference(set_h225_addr_hook) != NULL);
- BUG_ON(rcu_dereference(set_sig_addr_hook) != NULL);
- BUG_ON(rcu_dereference(set_ras_addr_hook) != NULL);
- BUG_ON(rcu_dereference(nat_rtp_rtcp_hook) != NULL);
- BUG_ON(rcu_dereference(nat_t120_hook) != NULL);
- BUG_ON(rcu_dereference(nat_h245_hook) != NULL);
- BUG_ON(rcu_dereference(nat_callforwarding_hook) != NULL);
- BUG_ON(rcu_dereference(nat_q931_hook) != NULL);
+ BUG_ON(set_h245_addr_hook != NULL);
+ BUG_ON(set_h225_addr_hook != NULL);
+ BUG_ON(set_sig_addr_hook != NULL);
+ BUG_ON(set_ras_addr_hook != NULL);
+ BUG_ON(nat_rtp_rtcp_hook != NULL);
+ BUG_ON(nat_t120_hook != NULL);
+ BUG_ON(nat_h245_hook != NULL);
+ BUG_ON(nat_callforwarding_hook != NULL);
+ BUG_ON(nat_q931_hook != NULL);
rcu_assign_pointer(set_h245_addr_hook, set_h245_addr);
rcu_assign_pointer(set_h225_addr_hook, set_h225_addr);
projects / linux-2.6 / blobdiff