projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f01ffbd6 PM |
1 | #ifndef _NF_LOG_H |
| 2 | #define _NF_LOG_H | |
| 3 | ||
| ca735b3a EL |
4 | #include <linux/netfilter.h> |
| 5 | ||
| f01ffbd6 PM |
6 | /* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will |
| 7 | * disappear once iptables is replaced with pkttables. Please DO NOT use them | |
| 8 | * for any new code! */ | |
| 9 | #define NF_LOG_TCPSEQ 0x01 /* Log TCP sequence numbers */ | |
| 10 | #define NF_LOG_TCPOPT 0x02 /* Log TCP options */ | |
| 11 | #define NF_LOG_IPOPT 0x04 /* Log IP options */ | |
| 12 | #define NF_LOG_UID 0x08 /* Log UID owning local socket */ | |
| 13 | #define NF_LOG_MASK 0x0f | |
| 14 | ||
| 7643507f VP |
15 | /* This flag indicates that copy_len field in nf_loginfo is set */ |
| 16 | #define NF_LOG_F_COPY_LEN 0x1 | |
| 17 | ||
| 5962815a PNA |
18 | enum nf_log_type { |
| 19 | NF_LOG_TYPE_LOG = 0, | |
| 20 | NF_LOG_TYPE_ULOG, | |
| 21 | NF_LOG_TYPE_MAX | |
| 22 | }; | |
| f01ffbd6 PM |
23 | |
| 24 | struct nf_loginfo { | |
| 25 | u_int8_t type; | |
| 26 | union { | |
| 27 | struct { | |
| 7643507f VP |
28 | /* copy_len will be used iff you set |
| 29 | * NF_LOG_F_COPY_LEN in flags | |
| 30 | */ | |
| f01ffbd6 PM |
31 | u_int32_t copy_len; |
| 32 | u_int16_t group; | |
| 33 | u_int16_t qthreshold; | |
| 7643507f | 34 | u_int16_t flags; |
| f01ffbd6 PM |
35 | } ulog; |
| 36 | struct { | |
| 37 | u_int8_t level; | |
| 38 | u_int8_t logflags; | |
| 39 | } log; | |
| 40 | } u; | |
| 41 | }; | |
| 42 | ||
| 8cdb46da HS |
43 | typedef void nf_logfn(struct net *net, |
| 44 | u_int8_t pf, | |
| f01ffbd6 PM |
45 | unsigned int hooknum, |
| 46 | const struct sk_buff *skb, | |
| 47 | const struct net_device *in, | |
| 48 | const struct net_device *out, | |
| 49 | const struct nf_loginfo *li, | |
| 50 | const char *prefix); | |
| 51 | ||
| 52 | struct nf_logger { | |
| 5962815a PNA |
53 | char *name; |
| 54 | enum nf_log_type type; | |
| 55 | nf_logfn *logfn; | |
| 56 | struct module *me; | |
| f01ffbd6 PM |
57 | }; |
| 58 | ||
| 59 | /* Function to register/unregister log function. */ | |
| ca735b3a EL |
60 | int nf_log_register(u_int8_t pf, struct nf_logger *logger); |
| 61 | void nf_log_unregister(struct nf_logger *logger); | |
| 62 | ||
| 30e0c6a6 G |
63 | void nf_log_set(struct net *net, u_int8_t pf, |
| 64 | const struct nf_logger *logger); | |
| 65 | void nf_log_unset(struct net *net, const struct nf_logger *logger); | |
| 66 | ||
| 67 | int nf_log_bind_pf(struct net *net, u_int8_t pf, | |
| 68 | const struct nf_logger *logger); | |
| 69 | void nf_log_unbind_pf(struct net *net, u_int8_t pf); | |
| f01ffbd6 | 70 | |
| fab4085f PNA |
71 | int nf_logger_find_get(int pf, enum nf_log_type type); |
| 72 | void nf_logger_put(int pf, enum nf_log_type type); | |
| 960649d1 | 73 | void nf_logger_request_module(int pf, enum nf_log_type type); |
| fab4085f PNA |
74 | |
| 75 | #define MODULE_ALIAS_NF_LOGGER(family, type) \ | |
| 76 | MODULE_ALIAS("nf-logger-" __stringify(family) "-" __stringify(type)) | |
| 77 | ||
| f01ffbd6 | 78 | /* Calls the registered backend logging function */ |
| 30e0c6a6 G |
79 | __printf(8, 9) |
| 80 | void nf_log_packet(struct net *net, | |
| 81 | u_int8_t pf, | |
| f01ffbd6 PM |
82 | unsigned int hooknum, |
| 83 | const struct sk_buff *skb, | |
| 84 | const struct net_device *in, | |
| 85 | const struct net_device *out, | |
| 7b2f9631 | 86 | const struct nf_loginfo *li, |
| b9075fa9 | 87 | const char *fmt, ...); |
| f01ffbd6 | 88 | |
| 4017a7ee PNA |
89 | __printf(8, 9) |
| 90 | void nf_log_trace(struct net *net, | |
| 91 | u_int8_t pf, | |
| 92 | unsigned int hooknum, | |
| 93 | const struct sk_buff *skb, | |
| 94 | const struct net_device *in, | |
| 95 | const struct net_device *out, | |
| 96 | const struct nf_loginfo *li, | |
| 97 | const char *fmt, ...); | |
| 98 | ||
| 27fd8d90 PNA |
99 | struct nf_log_buf; |
| 100 | ||
| 101 | struct nf_log_buf *nf_log_buf_open(void); | |
| 102 | __printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...); | |
| 103 | void nf_log_buf_close(struct nf_log_buf *m); | |
| 104 | ||
| 83e96d44 PNA |
105 | /* common logging functions */ |
| 106 | int nf_log_dump_udp_header(struct nf_log_buf *m, const struct sk_buff *skb, | |
| 107 | u8 proto, int fragment, unsigned int offset); | |
| 108 | int nf_log_dump_tcp_header(struct nf_log_buf *m, const struct sk_buff *skb, | |
| 109 | u8 proto, int fragment, unsigned int offset, | |
| 110 | unsigned int logflags); | |
| 111 | void nf_log_dump_sk_uid_gid(struct nf_log_buf *m, struct sock *sk); | |
| 112 | void nf_log_dump_packet_common(struct nf_log_buf *m, u_int8_t pf, | |
| 113 | unsigned int hooknum, const struct sk_buff *skb, | |
| 114 | const struct net_device *in, | |
| 115 | const struct net_device *out, | |
| 116 | const struct nf_loginfo *loginfo, | |
| 117 | const char *prefix); | |
| 118 | ||
| f01ffbd6 | 119 | #endif /* _NF_LOG_H */ |