]>
git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - include/net/netfilter/nf_log.h
4 #include <linux/netfilter.h>
5 #include <linux/netfilter/nf_log.h>
7 /* Log tcp sequence, tcp options, ip options and uid owning local socket */
8 #define NF_LOG_DEFAULT_MASK 0x0f
10 /* This flag indicates that copy_len field in nf_loginfo is set */
11 #define NF_LOG_F_COPY_LEN 0x1
23 /* copy_len will be used iff you set
24 * NF_LOG_F_COPY_LEN in flags
38 typedef void nf_logfn(struct net
*net
,
41 const struct sk_buff
*skb
,
42 const struct net_device
*in
,
43 const struct net_device
*out
,
44 const struct nf_loginfo
*li
,
49 enum nf_log_type type
;
54 /* sysctl_nf_log_all_netns - allow LOG target in all network namespaces */
55 extern int sysctl_nf_log_all_netns
;
57 /* Function to register/unregister log function. */
58 int nf_log_register(u_int8_t pf
, struct nf_logger
*logger
);
59 void nf_log_unregister(struct nf_logger
*logger
);
61 int nf_log_set(struct net
*net
, u_int8_t pf
, const struct nf_logger
*logger
);
62 void nf_log_unset(struct net
*net
, const struct nf_logger
*logger
);
64 int nf_log_bind_pf(struct net
*net
, u_int8_t pf
,
65 const struct nf_logger
*logger
);
66 void nf_log_unbind_pf(struct net
*net
, u_int8_t pf
);
68 int nf_logger_find_get(int pf
, enum nf_log_type type
);
69 void nf_logger_put(int pf
, enum nf_log_type type
);
70 void nf_logger_request_module(int pf
, enum nf_log_type type
);
72 #define MODULE_ALIAS_NF_LOGGER(family, type) \
73 MODULE_ALIAS("nf-logger-" __stringify(family) "-" __stringify(type))
75 /* Calls the registered backend logging function */
77 void nf_log_packet(struct net
*net
,
80 const struct sk_buff
*skb
,
81 const struct net_device
*in
,
82 const struct net_device
*out
,
83 const struct nf_loginfo
*li
,
84 const char *fmt
, ...);
87 void nf_log_trace(struct net
*net
,
90 const struct sk_buff
*skb
,
91 const struct net_device
*in
,
92 const struct net_device
*out
,
93 const struct nf_loginfo
*li
,
94 const char *fmt
, ...);
98 struct nf_log_buf
*nf_log_buf_open(void);
99 __printf(2, 3) int nf_log_buf_add(struct nf_log_buf
*m
, const char *f
, ...);
100 void nf_log_buf_close(struct nf_log_buf
*m
);
102 /* common logging functions */
103 int nf_log_dump_udp_header(struct nf_log_buf
*m
, const struct sk_buff
*skb
,
104 u8 proto
, int fragment
, unsigned int offset
);
105 int nf_log_dump_tcp_header(struct nf_log_buf
*m
, const struct sk_buff
*skb
,
106 u8 proto
, int fragment
, unsigned int offset
,
107 unsigned int logflags
);
108 void nf_log_dump_sk_uid_gid(struct nf_log_buf
*m
, struct sock
*sk
);
109 void nf_log_dump_packet_common(struct nf_log_buf
*m
, u_int8_t pf
,
110 unsigned int hooknum
, const struct sk_buff
*skb
,
111 const struct net_device
*in
,
112 const struct net_device
*out
,
113 const struct nf_loginfo
*loginfo
,
115 void nf_log_l2packet(struct net
*net
, u_int8_t pf
,
117 unsigned int hooknum
,
118 const struct sk_buff
*skb
,
119 const struct net_device
*in
,
120 const struct net_device
*out
,
121 const struct nf_loginfo
*loginfo
, const char *prefix
);
123 #endif /* _NF_LOG_H */