#include <net/netfilter/nf_conntrack_expect.h>
#include <linux/netfilter/nf_conntrack_h323.h>
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/****************************************************************************/
-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;
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)
{
- 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)
{
- 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)
(ntohl(addr.ip) & 0xff000000) == 0x7f000000)
i = 0;
- DEBUGP
- ("nf_nat_ras: set signal address "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.dst.
- ip), info->sig_port[!dir]);
- return set_h225_addr(pskb, data, 0, &taddr[i],
+ pr_debug("nf_nat_ras: set signal address "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(addr.ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.dst.u3.ip),
+ info->sig_port[!dir]);
+ return set_h225_addr(skb, data, 0, &taddr[i],
&ct->tuplehash[!dir].
tuple.dst.u3,
info->sig_port[!dir]);
} else if (addr.ip == ct->tuplehash[dir].tuple.dst.u3.ip &&
port == info->sig_port[dir]) {
/* GK->GW */
- DEBUGP
- ("nf_nat_ras: set signal address "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.src.
- ip), info->sig_port[!dir]);
- return set_h225_addr(pskb, data, 0, &taddr[i],
+ pr_debug("nf_nat_ras: set signal address "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(addr.ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.src.u3.ip),
+ info->sig_port[!dir]);
+ 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)
if (get_h225_addr(ct, *data, &taddr[i], &addr, &port) &&
addr.ip == ct->tuplehash[dir].tuple.src.u3.ip &&
port == ct->tuplehash[dir].tuple.src.u.udp.port) {
- DEBUGP("nf_nat_ras: set rasAddress "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(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],
+ pr_debug("nf_nat_ras: set rasAddress "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ 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(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,
for (nated_port = ntohs(rtp_exp->tuple.dst.u.udp.port);
nated_port != 0; nated_port += 2) {
rtp_exp->tuple.dst.u.udp.port = htons(nated_port);
- if (nf_conntrack_expect_related(rtp_exp) == 0) {
+ if (nf_ct_expect_related(rtp_exp) == 0) {
rtcp_exp->tuple.dst.u.udp.port =
htons(nated_port + 1);
- if (nf_conntrack_expect_related(rtcp_exp) == 0)
+ if (nf_ct_expect_related(rtcp_exp) == 0)
break;
- nf_conntrack_unexpect_related(rtp_exp);
+ nf_ct_unexpect_related(rtp_exp);
}
}
}
/* 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) {
info->rtp_port[i][dir] = rtp_port;
info->rtp_port[i][!dir] = htons(nated_port);
} else {
- nf_conntrack_unexpect_related(rtp_exp);
- nf_conntrack_unexpect_related(rtcp_exp);
+ nf_ct_unexpect_related(rtp_exp);
+ nf_ct_unexpect_related(rtcp_exp);
return -1;
}
/* Success */
- DEBUGP("nf_nat_h323: expect RTP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(rtp_exp->tuple.src.ip),
- ntohs(rtp_exp->tuple.src.u.udp.port),
- NIPQUAD(rtp_exp->tuple.dst.ip),
- ntohs(rtp_exp->tuple.dst.u.udp.port));
- DEBUGP("nf_nat_h323: expect RTCP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(rtcp_exp->tuple.src.ip),
- ntohs(rtcp_exp->tuple.src.u.udp.port),
- NIPQUAD(rtcp_exp->tuple.dst.ip),
- ntohs(rtcp_exp->tuple.dst.u.udp.port));
+ pr_debug("nf_nat_h323: expect RTP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(rtp_exp->tuple.src.u3.ip),
+ ntohs(rtp_exp->tuple.src.u.udp.port),
+ NIPQUAD(rtp_exp->tuple.dst.u3.ip),
+ ntohs(rtp_exp->tuple.dst.u.udp.port));
+ pr_debug("nf_nat_h323: expect RTCP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(rtcp_exp->tuple.src.u3.ip),
+ ntohs(rtcp_exp->tuple.src.u.udp.port),
+ NIPQUAD(rtcp_exp->tuple.dst.u3.ip),
+ ntohs(rtcp_exp->tuple.dst.u.udp.port));
return 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,
/* Try to get same port: if not, try to change it. */
for (; nated_port != 0; nated_port++) {
exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (nf_conntrack_expect_related(exp) == 0)
+ if (nf_ct_expect_related(exp) == 0)
break;
}
}
/* 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_conntrack_unexpect_related(exp);
+ nf_ct_unexpect_related(exp);
return -1;
}
- DEBUGP("nf_nat_h323: expect T.120 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+ pr_debug("nf_nat_h323: expect T.120 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.u3.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.u3.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
return 0;
}
/****************************************************************************/
-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,
/* Try to get same port: if not, try to change it. */
for (; nated_port != 0; nated_port++) {
exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (nf_conntrack_expect_related(exp) == 0)
+ if (nf_ct_expect_related(exp) == 0)
break;
}
}
/* 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 */
info->sig_port[dir] = port;
info->sig_port[!dir] = htons(nated_port);
} else {
- nf_conntrack_unexpect_related(exp);
+ nf_ct_unexpect_related(exp);
return -1;
}
- DEBUGP("nf_nat_q931: expect H.245 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+ pr_debug("nf_nat_q931: expect H.245 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.u3.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.u3.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
return 0;
}
}
/****************************************************************************/
-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)
/* Try to get same port: if not, try to change it. */
for (; nated_port != 0; nated_port++) {
exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (nf_conntrack_expect_related(exp) == 0)
+ if (nf_ct_expect_related(exp) == 0)
break;
}
}
/* 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]);
}
} else {
- nf_conntrack_unexpect_related(exp);
+ nf_ct_unexpect_related(exp);
return -1;
}
/* Success */
- DEBUGP("nf_nat_ras: expect Q.931 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+ pr_debug("nf_nat_ras: expect Q.931 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.u3.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.u3.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
return 0;
}
}
/****************************************************************************/
-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,
/* Try to get same port: if not, try to change it. */
for (nated_port = ntohs(port); nated_port != 0; nated_port++) {
exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (nf_conntrack_expect_related(exp) == 0)
+ if (nf_ct_expect_related(exp) == 0)
break;
}
}
/* 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_conntrack_unexpect_related(exp);
+ nf_ct_unexpect_related(exp);
return -1;
}
/* Success */
- DEBUGP("nf_nat_q931: expect Call Forwarding "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+ pr_debug("nf_nat_q931: expect Call Forwarding "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.u3.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.u3.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
return 0;
}
/****************************************************************************/
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);
rcu_assign_pointer(nat_h245_hook, nat_h245);
rcu_assign_pointer(nat_callforwarding_hook, nat_callforwarding);
rcu_assign_pointer(nat_q931_hook, nat_q931);
-
- DEBUGP("nf_nat_h323: init success\n");
return 0;
}
projects / linux-2.6 / blobdiff