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-rw-r--r--include/linux/netfilter/nf_conntrack_common.h10
-rw-r--r--include/linux/netfilter/nf_conntrack_h323.h109
-rw-r--r--include/linux/netfilter/nf_conntrack_pptp.h38
-rw-r--r--include/linux/netfilter/nf_conntrack_sip.h2
4 files changed, 80 insertions, 79 deletions
diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h
index 700ea077ce2d..2770db2fa080 100644
--- a/include/linux/netfilter/nf_conntrack_common.h
+++ b/include/linux/netfilter/nf_conntrack_common.h
@@ -2,7 +2,7 @@
#ifndef _NF_CONNTRACK_COMMON_H
#define _NF_CONNTRACK_COMMON_H
-#include <linux/atomic.h>
+#include <linux/refcount.h>
#include <uapi/linux/netfilter/nf_conntrack_common.h>
struct ip_conntrack_stat {
@@ -25,19 +25,21 @@ struct ip_conntrack_stat {
#define NFCT_PTRMASK ~(NFCT_INFOMASK)
struct nf_conntrack {
- atomic_t use;
+ refcount_t use;
};
void nf_conntrack_destroy(struct nf_conntrack *nfct);
+
+/* like nf_ct_put, but without module dependency on nf_conntrack */
static inline void nf_conntrack_put(struct nf_conntrack *nfct)
{
- if (nfct && atomic_dec_and_test(&nfct->use))
+ if (nfct && refcount_dec_and_test(&nfct->use))
nf_conntrack_destroy(nfct);
}
static inline void nf_conntrack_get(struct nf_conntrack *nfct)
{
if (nfct)
- atomic_inc(&nfct->use);
+ refcount_inc(&nfct->use);
}
#endif /* _NF_CONNTRACK_COMMON_H */
diff --git a/include/linux/netfilter/nf_conntrack_h323.h b/include/linux/netfilter/nf_conntrack_h323.h
index 4561ec0fcea4..9e937f64a1ad 100644
--- a/include/linux/netfilter/nf_conntrack_h323.h
+++ b/include/linux/netfilter/nf_conntrack_h323.h
@@ -38,60 +38,63 @@ void nf_conntrack_h245_expect(struct nf_conn *new,
struct nf_conntrack_expect *this);
void nf_conntrack_q931_expect(struct nf_conn *new,
struct nf_conntrack_expect *this);
-extern int (*set_h245_addr_hook) (struct sk_buff *skb, unsigned int protoff,
- unsigned char **data, int dataoff,
- H245_TransportAddress *taddr,
- union nf_inet_addr *addr,
- __be16 port);
-extern int (*set_h225_addr_hook) (struct sk_buff *skb, unsigned int protoff,
- unsigned char **data, int dataoff,
- TransportAddress *taddr,
- union nf_inet_addr *addr,
- __be16 port);
-extern int (*set_sig_addr_hook) (struct sk_buff *skb,
- struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff, unsigned char **data,
- TransportAddress *taddr, int count);
-extern int (*set_ras_addr_hook) (struct sk_buff *skb,
- struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff, unsigned char **data,
- TransportAddress *taddr, int count);
-extern int (*nat_rtp_rtcp_hook) (struct sk_buff *skb,
- struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff, unsigned char **data,
- int dataoff,
- H245_TransportAddress *taddr,
- __be16 port, __be16 rtp_port,
- struct nf_conntrack_expect *rtp_exp,
- struct nf_conntrack_expect *rtcp_exp);
-extern int (*nat_t120_hook) (struct sk_buff *skb, struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff,
+
+struct nfct_h323_nat_hooks {
+ int (*set_h245_addr)(struct sk_buff *skb, unsigned int protoff,
unsigned char **data, int dataoff,
- H245_TransportAddress *taddr, __be16 port,
- struct nf_conntrack_expect *exp);
-extern int (*nat_h245_hook) (struct sk_buff *skb, struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff,
+ H245_TransportAddress *taddr,
+ union nf_inet_addr *addr, __be16 port);
+ int (*set_h225_addr)(struct sk_buff *skb, unsigned int protoff,
unsigned char **data, int dataoff,
- TransportAddress *taddr, __be16 port,
- struct nf_conntrack_expect *exp);
-extern int (*nat_callforwarding_hook) (struct sk_buff *skb,
- struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff,
- unsigned char **data, int dataoff,
- TransportAddress *taddr,
- __be16 port,
- struct nf_conntrack_expect *exp);
-extern int (*nat_q931_hook) (struct sk_buff *skb, struct nf_conn *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int protoff,
- unsigned char **data, TransportAddress *taddr,
- int idx, __be16 port,
- struct nf_conntrack_expect *exp);
+ TransportAddress *taddr,
+ union nf_inet_addr *addr, __be16 port);
+ int (*set_sig_addr)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff, unsigned char **data,
+ TransportAddress *taddr, int count);
+ int (*set_ras_addr)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff, unsigned char **data,
+ TransportAddress *taddr, int count);
+ int (*nat_rtp_rtcp)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress *taddr,
+ __be16 port, __be16 rtp_port,
+ struct nf_conntrack_expect *rtp_exp,
+ struct nf_conntrack_expect *rtcp_exp);
+ int (*nat_t120)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress *taddr, __be16 port,
+ struct nf_conntrack_expect *exp);
+ int (*nat_h245)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ unsigned char **data, int dataoff,
+ TransportAddress *taddr, __be16 port,
+ struct nf_conntrack_expect *exp);
+ int (*nat_callforwarding)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ unsigned char **data, int dataoff,
+ TransportAddress *taddr, __be16 port,
+ struct nf_conntrack_expect *exp);
+ int (*nat_q931)(struct sk_buff *skb,
+ struct nf_conn *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ unsigned char **data, TransportAddress *taddr, int idx,
+ __be16 port, struct nf_conntrack_expect *exp);
+};
+extern const struct nfct_h323_nat_hooks __rcu *nfct_h323_nat_hook;
#endif
diff --git a/include/linux/netfilter/nf_conntrack_pptp.h b/include/linux/netfilter/nf_conntrack_pptp.h
index a28aa289afdc..c3bdb4370938 100644
--- a/include/linux/netfilter/nf_conntrack_pptp.h
+++ b/include/linux/netfilter/nf_conntrack_pptp.h
@@ -300,26 +300,22 @@ union pptp_ctrl_union {
struct PptpSetLinkInfo setlink;
};
-extern int
-(*nf_nat_pptp_hook_outbound)(struct sk_buff *skb,
- struct nf_conn *ct, enum ip_conntrack_info ctinfo,
- unsigned int protoff,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq);
-
-extern int
-(*nf_nat_pptp_hook_inbound)(struct sk_buff *skb,
- struct nf_conn *ct, enum ip_conntrack_info ctinfo,
- unsigned int protoff,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq);
-
-extern void
-(*nf_nat_pptp_hook_exp_gre)(struct nf_conntrack_expect *exp_orig,
- struct nf_conntrack_expect *exp_reply);
-
-extern void
-(*nf_nat_pptp_hook_expectfn)(struct nf_conn *ct,
- struct nf_conntrack_expect *exp);
+struct nf_nat_pptp_hook {
+ int (*outbound)(struct sk_buff *skb,
+ struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ struct PptpControlHeader *ctlh,
+ union pptp_ctrl_union *pptpReq);
+ int (*inbound)(struct sk_buff *skb,
+ struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+ unsigned int protoff,
+ struct PptpControlHeader *ctlh,
+ union pptp_ctrl_union *pptpReq);
+ void (*exp_gre)(struct nf_conntrack_expect *exp_orig,
+ struct nf_conntrack_expect *exp_reply);
+ void (*expectfn)(struct nf_conn *ct,
+ struct nf_conntrack_expect *exp);
+};
+extern const struct nf_nat_pptp_hook __rcu *nf_nat_pptp_hook;
#endif /* _NF_CONNTRACK_PPTP_H */
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index c620521c42bc..dbc614dfe0d5 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -164,7 +164,7 @@ struct nf_nat_sip_hooks {
unsigned int medialen,
union nf_inet_addr *rtp_addr);
};
-extern const struct nf_nat_sip_hooks *nf_nat_sip_hooks;
+extern const struct nf_nat_sip_hooks __rcu *nf_nat_sip_hooks;
int ct_sip_parse_request(const struct nf_conn *ct, const char *dptr,
unsigned int datalen, unsigned int *matchoff,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.