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authorMartin Josefsson <gandalf@wlug.westbo.se>2006-11-29 02:34:58 +0100
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:31:04 -0800
commit77ab9cff0f4112703df3ef7903c1a15adb967114 (patch)
tree6361b73598e237398d959afdd158c70b68354b09 /include
parentd2e4bdc8704b0e711c5046a430bfd1681b0bd5a9 (diff)
[NETFILTER]: nf_conntrack: split out expectation handling
This patch splits out expectation handling into its own file nf_conntrack_expect.c Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/netfilter/nf_conntrack.h49
-rw-r--r--include/net/netfilter/nf_conntrack_core.h7
-rw-r--r--include/net/netfilter/nf_conntrack_expect.h72
-rw-r--r--include/net/netfilter/nf_conntrack_helper.h10
4 files changed, 80 insertions, 58 deletions
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 1fbd8193d5f..9d2581fc04b 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -124,44 +124,6 @@ struct nf_conn
char data[0];
};
-struct nf_conntrack_expect
-{
- /* Internal linked list (global expectation list) */
- struct list_head list;
-
- /* We expect this tuple, with the following mask */
- struct nf_conntrack_tuple tuple, mask;
-
- /* Function to call after setup and insertion */
- void (*expectfn)(struct nf_conn *new,
- struct nf_conntrack_expect *this);
-
- /* The conntrack of the master connection */
- struct nf_conn *master;
-
- /* Timer function; deletes the expectation. */
- struct timer_list timeout;
-
- /* Usage count. */
- atomic_t use;
-
- /* Unique ID */
- unsigned int id;
-
- /* Flags */
- unsigned int flags;
-
-#ifdef CONFIG_NF_NAT_NEEDED
- /* This is the original per-proto part, used to map the
- * expected connection the way the recipient expects. */
- union nf_conntrack_manip_proto saved_proto;
- /* Direction relative to the master connection. */
- enum ip_conntrack_dir dir;
-#endif
-};
-
-#define NF_CT_EXPECT_PERMANENT 0x1
-
static inline struct nf_conn *
nf_ct_tuplehash_to_ctrack(const struct nf_conntrack_tuple_hash *hash)
{
@@ -208,16 +170,6 @@ __nf_conntrack_find(const struct nf_conntrack_tuple *tuple,
extern void nf_conntrack_hash_insert(struct nf_conn *ct);
-extern struct nf_conntrack_expect *
-__nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple);
-
-extern struct nf_conntrack_expect *
-nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple);
-
-extern void nf_ct_unlink_expect(struct nf_conntrack_expect *exp);
-
-extern void nf_ct_remove_expectations(struct nf_conn *ct);
-
extern void nf_conntrack_flush(void);
extern struct nf_conntrack_helper *
@@ -295,6 +247,7 @@ extern int nf_conntrack_checksum;
#ifdef CONFIG_NF_CONNTRACK_EVENTS
#include <linux/notifier.h>
#include <linux/interrupt.h>
+#include <net/netfilter/nf_conntrack_expect.h>
struct nf_conntrack_ecache {
struct nf_conn *ct;
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index da254525a4c..84a8e01941f 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -13,6 +13,8 @@
#define _NF_CONNTRACK_CORE_H
#include <linux/netfilter.h>
+#include <net/netfilter/nf_conntrack_l3proto.h>
+#include <net/netfilter/nf_conntrack_protocol.h>
/* This header is used to share core functionality between the
standalone connection tracking module, and the compatibility layer's use
@@ -70,6 +72,11 @@ static inline int nf_conntrack_confirm(struct sk_buff **pskb)
extern void __nf_conntrack_attach(struct sk_buff *nskb, struct sk_buff *skb);
+int
+print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
+ struct nf_conntrack_l3proto *l3proto,
+ struct nf_conntrack_protocol *proto);
+
extern struct list_head *nf_conntrack_hash;
extern struct list_head nf_conntrack_expect_list;
extern rwlock_t nf_conntrack_lock ;
diff --git a/include/net/netfilter/nf_conntrack_expect.h b/include/net/netfilter/nf_conntrack_expect.h
new file mode 100644
index 00000000000..5aa483e0345
--- /dev/null
+++ b/include/net/netfilter/nf_conntrack_expect.h
@@ -0,0 +1,72 @@
+/*
+ * connection tracking expectations.
+ */
+
+#ifndef _NF_CONNTRACK_EXPECT_H
+#define _NF_CONNTRACK_EXPECT_H
+#include <net/netfilter/nf_conntrack.h>
+
+extern struct list_head nf_conntrack_expect_list;
+extern kmem_cache_t *nf_conntrack_expect_cachep;
+extern struct file_operations exp_file_ops;
+
+struct nf_conntrack_expect
+{
+ /* Internal linked list (global expectation list) */
+ struct list_head list;
+
+ /* We expect this tuple, with the following mask */
+ struct nf_conntrack_tuple tuple, mask;
+
+ /* Function to call after setup and insertion */
+ void (*expectfn)(struct nf_conn *new,
+ struct nf_conntrack_expect *this);
+
+ /* The conntrack of the master connection */
+ struct nf_conn *master;
+
+ /* Timer function; deletes the expectation. */
+ struct timer_list timeout;
+
+ /* Usage count. */
+ atomic_t use;
+
+ /* Unique ID */
+ unsigned int id;
+
+ /* Flags */
+ unsigned int flags;
+
+#ifdef CONFIG_NF_NAT_NEEDED
+ /* This is the original per-proto part, used to map the
+ * expected connection the way the recipient expects. */
+ union nf_conntrack_manip_proto saved_proto;
+ /* Direction relative to the master connection. */
+ enum ip_conntrack_dir dir;
+#endif
+};
+
+#define NF_CT_EXPECT_PERMANENT 0x1
+
+
+struct nf_conntrack_expect *
+__nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple);
+
+struct nf_conntrack_expect *
+nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple);
+
+struct nf_conntrack_expect *
+find_expectation(const struct nf_conntrack_tuple *tuple);
+
+void nf_ct_unlink_expect(struct nf_conntrack_expect *exp);
+void nf_ct_remove_expectations(struct nf_conn *ct);
+void nf_conntrack_unexpect_related(struct nf_conntrack_expect *exp);
+
+/* Allocate space for an expectation: this is mandatory before calling
+ nf_conntrack_expect_related. You will have to call put afterwards. */
+struct nf_conntrack_expect *nf_conntrack_expect_alloc(struct nf_conn *me);
+void nf_conntrack_expect_put(struct nf_conntrack_expect *exp);
+int nf_conntrack_expect_related(struct nf_conntrack_expect *expect);
+
+#endif /*_NF_CONNTRACK_EXPECT_H*/
+
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index 86ec8174ad0..3cbd13e2216 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -40,14 +40,4 @@ struct nf_conntrack_helper
extern int nf_conntrack_helper_register(struct nf_conntrack_helper *);
extern void nf_conntrack_helper_unregister(struct nf_conntrack_helper *);
-/* Allocate space for an expectation: this is mandatory before calling
- nf_conntrack_expect_related. You will have to call put afterwards. */
-extern struct nf_conntrack_expect *
-nf_conntrack_expect_alloc(struct nf_conn *master);
-extern void nf_conntrack_expect_put(struct nf_conntrack_expect *exp);
-
-/* Add an expected connection: can have more than one per connection */
-extern int nf_conntrack_expect_related(struct nf_conntrack_expect *exp);
-extern void nf_conntrack_unexpect_related(struct nf_conntrack_expect *exp);
-
#endif /*_NF_CONNTRACK_HELPER_H*/