[mirror_ubuntu-focal-kernel.git] / include / linux / inet_diag.h

#ifndef _INET_DIAG_H_
#define _INET_DIAG_H_ 1

#include <linux/types.h>

/* Just some random number */
#define TCPDIAG_GETSOCK 18
#define DCCPDIAG_GETSOCK 19
#define SOCK_DIAG_BY_FAMILY 20

#define INET_DIAG_GETSOCK_MAX 24

/* Socket identity */
struct inet_diag_sockid {
	__be16	idiag_sport;
	__be16	idiag_dport;
	__be32	idiag_src[4];
	__be32	idiag_dst[4];
	__u32	idiag_if;
	__u32	idiag_cookie[2];
#define INET_DIAG_NOCOOKIE (~0U)
};

/* Request structure */

struct inet_diag_req_compat {
	__u8	idiag_family;		/* Family of addresses. */
	__u8	idiag_src_len;
	__u8	idiag_dst_len;
	__u8	idiag_ext;		/* Query extended information */

	struct inet_diag_sockid id;

	__u32	idiag_states;		/* States to dump */
	__u32	idiag_dbs;		/* Tables to dump (NI) */
};

struct inet_diag_req {
	__u8	sdiag_family;
	__u8	sdiag_protocol;
	__u8	idiag_ext;
	__u8	pad;
	__u32	idiag_states;
	struct inet_diag_sockid id;
};

enum {
	INET_DIAG_REQ_NONE,
	INET_DIAG_REQ_BYTECODE,
};

#define INET_DIAG_REQ_MAX INET_DIAG_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 inet_diag_bc_op {
	unsigned char	code;
	unsigned char	yes;
	unsigned short	no;
};

enum {
	INET_DIAG_BC_NOP,
	INET_DIAG_BC_JMP,
	INET_DIAG_BC_S_GE,
	INET_DIAG_BC_S_LE,
	INET_DIAG_BC_D_GE,
	INET_DIAG_BC_D_LE,
	INET_DIAG_BC_AUTO,
	INET_DIAG_BC_S_COND,
	INET_DIAG_BC_D_COND,
};

struct inet_diag_hostcond {
	__u8	family;
	__u8	prefix_len;
	int	port;
	__be32	addr[0];
};

/* Base info structure. It contains socket identity (addrs/ports/cookie)
 * and, alas, the information shown by netstat. */
struct inet_diag_msg {
	__u8	idiag_family;
	__u8	idiag_state;
	__u8	idiag_timer;
	__u8	idiag_retrans;

	struct inet_diag_sockid id;

	__u32	idiag_expires;
	__u32	idiag_rqueue;
	__u32	idiag_wqueue;
	__u32	idiag_uid;
	__u32	idiag_inode;
};

/* Extensions */

enum {
	INET_DIAG_NONE,
	INET_DIAG_MEMINFO,
	INET_DIAG_INFO,
	INET_DIAG_VEGASINFO,
	INET_DIAG_CONG,
	INET_DIAG_TOS,
	INET_DIAG_TCLASS,
};

#define INET_DIAG_MAX INET_DIAG_TCLASS


/* INET_DIAG_MEM */

struct inet_diag_meminfo {
	__u32	idiag_rmem;
	__u32	idiag_wmem;
	__u32	idiag_fmem;
	__u32	idiag_tmem;
};

/* INET_DIAG_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 inet_diag_msg *r,
						  void *info);
	__u16                   idiag_type;
};

int inet_diag_check_cookie(struct sock *sk, struct inet_diag_req *req);

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 /* _INET_DIAG_H_ */
Commit	Line	Data
73c1f4a0 ACM	1	#ifndef _INET_DIAG_H_
73c1f4a0 ACM	2	#define _INET_DIAG_H_ 1
1da177e4	3
2df005b7 JSR	4	#include <linux/types.h>
2df005b7 JSR	5
1da177e4 LT	6	/* Just some random number */
1da177e4 LT	7	#define TCPDIAG_GETSOCK 18
540722ff	8	#define DCCPDIAG_GETSOCK 19
8d34172d	9	#define SOCK_DIAG_BY_FAMILY 20
1da177e4	10
4f5736c4 ACM	11	#define INET_DIAG_GETSOCK_MAX 24
4f5736c4 ACM	12
1da177e4	13	/* Socket identity */
73c1f4a0	14	struct inet_diag_sockid {
9f855299 AV	15	__be16 idiag_sport;
	16	__be16 idiag_dport;
	17	__be32 idiag_src[4];
	18	__be32 idiag_dst[4];
73c1f4a0 ACM	19	__u32 idiag_if;
	20	__u32 idiag_cookie[2];
	21	#define INET_DIAG_NOCOOKIE (~0U)
1da177e4 LT	22	};
	23
	24	/* Request structure */
	25
126fdc32	26	struct inet_diag_req_compat {
73c1f4a0 ACM	27	__u8 idiag_family; /* Family of addresses. */
	28	__u8 idiag_src_len;
	29	__u8 idiag_dst_len;
	30	__u8 idiag_ext; /* Query extended information */
1da177e4	31
73c1f4a0	32	struct inet_diag_sockid id;
1da177e4	33
73c1f4a0 ACM	34	__u32 idiag_states; /* States to dump */
73c1f4a0 ACM	35	__u32 idiag_dbs; /* Tables to dump (NI) */
1da177e4 LT	36	};
1da177e4 LT	37
126fdc32 PE	38	struct inet_diag_req {
	39	__u8 sdiag_family;
	40	__u8 sdiag_protocol;
	41	__u8 idiag_ext;
	42	__u8 pad;
	43	__u32 idiag_states;
	44	struct inet_diag_sockid id;
	45	};
	46
73c1f4a0 ACM	47	enum {
	48	INET_DIAG_REQ_NONE,
	49	INET_DIAG_REQ_BYTECODE,
1da177e4 LT	50	};
1da177e4 LT	51
73c1f4a0	52	#define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
1da177e4 LT	53
	54	/* Bytecode is sequence of 4 byte commands followed by variable arguments.
	55	* All the commands identified by "code" are conditional jumps forward:
	56	* to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
	57	* length of the command and its arguments.
	58	*/
	59
73c1f4a0	60	struct inet_diag_bc_op {
1da177e4 LT	61	unsigned char code;
	62	unsigned char yes;
	63	unsigned short no;
	64	};
	65
73c1f4a0 ACM	66	enum {
	67	INET_DIAG_BC_NOP,
	68	INET_DIAG_BC_JMP,
	69	INET_DIAG_BC_S_GE,
	70	INET_DIAG_BC_S_LE,
	71	INET_DIAG_BC_D_GE,
	72	INET_DIAG_BC_D_LE,
	73	INET_DIAG_BC_AUTO,
	74	INET_DIAG_BC_S_COND,
	75	INET_DIAG_BC_D_COND,
1da177e4 LT	76	};
1da177e4 LT	77
73c1f4a0	78	struct inet_diag_hostcond {
1da177e4 LT	79	__u8 family;
	80	__u8 prefix_len;
	81	int port;
9f855299	82	__be32 addr[0];
1da177e4 LT	83	};
	84
	85	/* Base info structure. It contains socket identity (addrs/ports/cookie)
	86	* and, alas, the information shown by netstat. */
73c1f4a0 ACM	87	struct inet_diag_msg {
	88	__u8 idiag_family;
	89	__u8 idiag_state;
	90	__u8 idiag_timer;
	91	__u8 idiag_retrans;
	92
	93	struct inet_diag_sockid id;
	94
	95	__u32 idiag_expires;
	96	__u32 idiag_rqueue;
	97	__u32 idiag_wqueue;
	98	__u32 idiag_uid;
	99	__u32 idiag_inode;
1da177e4 LT	100	};
	101
	102	/* Extensions */
	103
73c1f4a0 ACM	104	enum {
	105	INET_DIAG_NONE,
	106	INET_DIAG_MEMINFO,
	107	INET_DIAG_INFO,
	108	INET_DIAG_VEGASINFO,
	109	INET_DIAG_CONG,
3ceca749	110	INET_DIAG_TOS,
06236ac3	111	INET_DIAG_TCLASS,
1da177e4 LT	112	};
1da177e4 LT	113
06236ac3	114	#define INET_DIAG_MAX INET_DIAG_TCLASS
1da177e4 LT	115
1da177e4 LT	116
73c1f4a0	117	/* INET_DIAG_MEM */
1da177e4	118
73c1f4a0 ACM	119	struct inet_diag_meminfo {
	120	__u32 idiag_rmem;
	121	__u32 idiag_wmem;
	122	__u32 idiag_fmem;
	123	__u32 idiag_tmem;
1da177e4 LT	124	};
1da177e4 LT	125
73c1f4a0	126	/* INET_DIAG_VEGASINFO */
1da177e4 LT	127
	128	struct tcpvegas_info {
	129	__u32 tcpv_enabled;
	130	__u32 tcpv_rttcnt;
	131	__u32 tcpv_rtt;
	132	__u32 tcpv_minrtt;
	133	};
	134
4f5736c4 ACM	135	#ifdef __KERNEL__
	136	struct sock;
	137	struct inet_hashinfo;
	138
	139	struct inet_diag_handler {
	140	struct inet_hashinfo *idiag_hashinfo;
	141	void (idiag_get_info)(struct sock sk,
73c1f4a0	142	struct inet_diag_msg *r,
4f5736c4	143	void *info);
4f5736c4 ACM	144	__u16 idiag_type;
	145	};
	146
b005ab4e PE	147	int inet_diag_check_cookie(struct sock sk, struct inet_diag_req req);
b005ab4e PE	148
4f5736c4 ACM	149	extern int inet_diag_register(const struct inet_diag_handler *handler);
	150	extern void inet_diag_unregister(const struct inet_diag_handler *handler);
	151	#endif /* __KERNEL__ */
	152
73c1f4a0	153	#endif /* _INET_DIAG_H_ */