[NETFILTER]: Extend netfilter logging API

[linux-2.6-block.git] / include / linux / netfilter.h

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 711e05f33d686bb2616a4185750a2952789e406e..815583af06c217b917a60f5bb606d58f4fdc68bf 100644 (file)
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -114,15 +114,51 @@ void nf_unregister_sockopt(struct nf_sockopt_ops *reg);
 
 extern struct list_head nf_hooks[NPROTO][NF_MAX_HOOKS];
 
-typedef void nf_logfn(unsigned int hooknum,
+/* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will
+ * disappear once iptables is replaced with pkttables.  Please DO NOT use them
+ * for any new code! */
+#define NF_LOG_TCPSEQ          0x01    /* Log TCP sequence numbers */
+#define NF_LOG_TCPOPT          0x02    /* Log TCP options */
+#define NF_LOG_IPOPT           0x04    /* Log IP options */
+#define NF_LOG_UID             0x08    /* Log UID owning local socket */
+#define NF_LOG_MASK            0x0f
+
+#define NF_LOG_TYPE_LOG                0x01
+#define NF_LOG_TYPE_ULOG       0x02
+
+struct nf_loginfo {
+       u_int8_t type;
+       union {
+               struct {
+                       u_int32_t copy_len;
+                       u_int16_t group;
+                       u_int16_t qthreshold;
+               } ulog;
+               struct {
+                       u_int8_t level;
+                       u_int8_t logflags;
+               } log;
+       } u;
+};
+
+typedef void nf_logfn(unsigned int pf,
+                     unsigned int hooknum,
                      const struct sk_buff *skb,
                      const struct net_device *in,
                      const struct net_device *out,
+                     const struct nf_loginfo *li,
                      const char *prefix);
 
+struct nf_logger {
+       struct module   *me;
+       nf_logfn        *logfn;
+       char            *name;
+};
+
 /* Function to register/unregister log function. */
-int nf_log_register(int pf, nf_logfn *logfn);
-void nf_log_unregister(int pf, nf_logfn *logfn);
+int nf_log_register(int pf, struct nf_logger *logger);
+void nf_log_unregister_pf(int pf);
+void nf_log_unregister_logger(struct nf_logger *logger);
 
 /* Calls the registered backend logging function */
 void nf_log_packet(int pf,
@@ -130,6 +166,7 @@ void nf_log_packet(int pf,
                   const struct sk_buff *skb,
                   const struct net_device *in,
                   const struct net_device *out,
+                  struct nf_loginfo *li,
                   const char *fmt, ...);
                    
 /* Activate hook; either okfn or kfree_skb called, unless a hook
@@ -221,6 +258,11 @@ struct nf_queue_rerouter {
 extern int nf_register_queue_rerouter(int pf, struct nf_queue_rerouter *rer);
 extern int nf_unregister_queue_rerouter(int pf);
 
+#ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+extern struct proc_dir_entry *proc_net_netfilter;
+#endif
+
 #else /* !CONFIG_NETFILTER */
 #define NF_HOOK(pf, hook, skb, indev, outdev, okfn) (okfn)(skb)
 static inline void nf_ct_attach(struct sk_buff *new, struct sk_buff *skb) {}