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#ifndef _TCP_DIAG_H_
#define _TCP_DIAG_H_ 1
/* Just some random number */
#define TCPDIAG_GETSOCK 18
#define DCCPDIAG_GETSOCK 19
#define INET_DIAG_GETSOCK_MAX 24
/* Socket identity */
struct tcpdiag_sockid
{
__u16 tcpdiag_sport;
__u16 tcpdiag_dport;
__u32 tcpdiag_src[4];
__u32 tcpdiag_dst[4];
__u32 tcpdiag_if;
__u32 tcpdiag_cookie[2];
#define TCPDIAG_NOCOOKIE (~0U)
};
/* Request structure */
struct tcpdiagreq
{
__u8 tcpdiag_family; /* Family of addresses. */
__u8 tcpdiag_src_len;
__u8 tcpdiag_dst_len;
__u8 tcpdiag_ext; /* Query extended information */
struct tcpdiag_sockid id;
__u32 tcpdiag_states; /* States to dump */
__u32 tcpdiag_dbs; /* Tables to dump (NI) */
};
enum
{
TCPDIAG_REQ_NONE,
TCPDIAG_REQ_BYTECODE,
};
#define TCPDIAG_REQ_MAX TCPDIAG_REQ_BYTECODE
/* Bytecode is sequence of 4 byte commands followed by variable arguments.
* All the commands identified by "code" are conditional jumps forward:
* to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
* length of the command and its arguments.
*/
struct tcpdiag_bc_op
{
unsigned char code;
unsigned char yes;
unsigned short no;
};
enum
{
TCPDIAG_BC_NOP,
TCPDIAG_BC_JMP,
TCPDIAG_BC_S_GE,
TCPDIAG_BC_S_LE,
TCPDIAG_BC_D_GE,
TCPDIAG_BC_D_LE,
TCPDIAG_BC_AUTO,
TCPDIAG_BC_S_COND,
TCPDIAG_BC_D_COND,
};
struct tcpdiag_hostcond
{
__u8 family;
__u8 prefix_len;
int port;
__u32 addr[0];
};
/* Base info structure. It contains socket identity (addrs/ports/cookie)
* and, alas, the information shown by netstat. */
struct tcpdiagmsg
{
__u8 tcpdiag_family;
__u8 tcpdiag_state;
__u8 tcpdiag_timer;
__u8 tcpdiag_retrans;
struct tcpdiag_sockid id;
__u32 tcpdiag_expires;
__u32 tcpdiag_rqueue;
__u32 tcpdiag_wqueue;
__u32 tcpdiag_uid;
__u32 tcpdiag_inode;
};
/* Extensions */
enum
{
TCPDIAG_NONE,
TCPDIAG_MEMINFO,
TCPDIAG_INFO,
TCPDIAG_VEGASINFO,
TCPDIAG_CONG,
};
#define TCPDIAG_MAX TCPDIAG_CONG
/* TCPDIAG_MEM */
struct tcpdiag_meminfo
{
__u32 tcpdiag_rmem;
__u32 tcpdiag_wmem;
__u32 tcpdiag_fmem;
__u32 tcpdiag_tmem;
};
/* TCPDIAG_VEGASINFO */
struct tcpvegas_info {
__u32 tcpv_enabled;
__u32 tcpv_rttcnt;
__u32 tcpv_rtt;
__u32 tcpv_minrtt;
};
#ifdef __KERNEL__
struct sock;
struct inet_hashinfo;
struct inet_diag_handler {
struct inet_hashinfo *idiag_hashinfo;
void (*idiag_get_info)(struct sock *sk,
struct tcpdiagmsg *r,
void *info);
__u16 idiag_info_size;
__u16 idiag_type;
};
extern int inet_diag_register(const struct inet_diag_handler *handler);
extern void inet_diag_unregister(const struct inet_diag_handler *handler);
#endif /* __KERNEL__ */
#endif /* _TCP_DIAG_H_ */
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