Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / net / netfilter / nf_log.h

diff --git a/kernel/include/net/netfilter/nf_log.h b/kernel/include/net/netfilter/nf_log.h
new file mode 100644 (file)
index 0000000..57639fc
--- /dev/null
+++ b/kernel/include/net/netfilter/nf_log.h
@@ -0,0 +1,112 @@
+#ifndef _NF_LOG_H
+#define _NF_LOG_H
+
+#include <linux/netfilter.h>
+
+/* 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
+
+enum nf_log_type {
+       NF_LOG_TYPE_LOG         = 0,
+       NF_LOG_TYPE_ULOG,
+       NF_LOG_TYPE_MAX
+};
+
+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(struct net *net,
+                     u_int8_t 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 {
+       char                    *name;
+       enum nf_log_type        type;
+       nf_logfn                *logfn;
+       struct module           *me;
+};
+
+/* Function to register/unregister log function. */
+int nf_log_register(u_int8_t pf, struct nf_logger *logger);
+void nf_log_unregister(struct nf_logger *logger);
+
+void nf_log_set(struct net *net, u_int8_t pf,
+               const struct nf_logger *logger);
+void nf_log_unset(struct net *net, const struct nf_logger *logger);
+
+int nf_log_bind_pf(struct net *net, u_int8_t pf,
+                  const struct nf_logger *logger);
+void nf_log_unbind_pf(struct net *net, u_int8_t pf);
+
+int nf_logger_find_get(int pf, enum nf_log_type type);
+void nf_logger_put(int pf, enum nf_log_type type);
+void nf_logger_request_module(int pf, enum nf_log_type type);
+
+#define MODULE_ALIAS_NF_LOGGER(family, type) \
+       MODULE_ALIAS("nf-logger-" __stringify(family) "-" __stringify(type))
+
+/* Calls the registered backend logging function */
+__printf(8, 9)
+void nf_log_packet(struct net *net,
+                  u_int8_t 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 *fmt, ...);
+
+__printf(8, 9)
+void nf_log_trace(struct net *net,
+                 u_int8_t 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 *fmt, ...);
+
+struct nf_log_buf;
+
+struct nf_log_buf *nf_log_buf_open(void);
+__printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...);
+void nf_log_buf_close(struct nf_log_buf *m);
+
+/* common logging functions */
+int nf_log_dump_udp_header(struct nf_log_buf *m, const struct sk_buff *skb,
+                          u8 proto, int fragment, unsigned int offset);
+int nf_log_dump_tcp_header(struct nf_log_buf *m, const struct sk_buff *skb,
+                          u8 proto, int fragment, unsigned int offset,
+                          unsigned int logflags);
+void nf_log_dump_sk_uid_gid(struct nf_log_buf *m, struct sock *sk);
+void nf_log_dump_packet_common(struct nf_log_buf *m, u_int8_t pf,
+                              unsigned int hooknum, const struct sk_buff *skb,
+                              const struct net_device *in,
+                              const struct net_device *out,
+                              const struct nf_loginfo *loginfo,
+                              const char *prefix);
+
+#endif /* _NF_LOG_H */