bsd/sys/sysctl.h

48  * 4. Neither the name of the University nor the names of its contributors
96  * Definitions for sysctl call.  The sysctl call uses a hierarchical name
97  * for objects that can be examined or modified.  The name is expressed as
98  * a sequence of integers.  Like a file path name, the meaning of each
108  * for that subsystem. Each name is either a node with further
110  * type given below. Each sysctl level defines a set of name/type
143 	char	*ctl_name;	/* subsystem name */
144 	int	ctl_type;	/* type of name */
148 #define	CTLTYPE_NODE	1	/* name is a node */
149 #define	CTLTYPE_INT	2	/* name describes an integer */
150 #define	CTLTYPE_STRING	3	/* name describes a string */
151 #define	CTLTYPE_QUAD	4	/* name describes a 64-bit number */
152 #define	CTLTYPE_OPAQUE	5	/* name describes a structure */
153 #define	CTLTYPE_STRUCT	CTLTYPE_OPAQUE	/* name describes a structure */
173  * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
290 #define SYSCTL_DECL(name)					\
291 	extern struct sysctl_oid_list sysctl_##name##_children
299 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
300 	struct sysctl_oid sysctl_##parent##_##name = {			 \
302 		nbr, (int)(kind|CTLFLAG_OID2), a1, (int)(a2), #name, handler, fmt, descr, SYSCTL_OID_VERSION, 0 }; \
303 	SYSCTL_LINKER_SET_ENTRY(__sysctl_set, sysctl_##parent##_##name)
306 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr)		    \
307 	struct sysctl_oid_list sysctl_##parent##_##name##_children;	    \
308 	SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access,		    \
309 		   (void*)&sysctl_##parent##_##name##_children, 0, handler, \
313 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
314 	SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \
317 #define SYSCTL_COMPAT_INT(parent, nbr, name, access, ptr, val, descr) \
318 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
321 #define SYSCTL_COMPAT_UINT(parent, nbr, name, access, ptr, val, descr) \
322 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
326 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
327 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
329 	typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(int)) ? 0 : -1];
332 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
333 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
335 	typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(unsigned int)) ? 0 : -1];
338 #define SYSCTL_LONG(parent, nbr, name, access, ptr, descr) \
339 	SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
341 	typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long)) ? 0 : -1];
344 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, descr) \
345 	SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \
347 	typedef char _sysctl_##parent##_##name##_size_check[(__builtin_constant_p(ptr) || sizeof(*(ptr)) == sizeof(long long)) ? 0 : -1];
350 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
351 	SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
355 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
356 	SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
361 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
362 	SYSCTL_OID(parent, nbr, name, access, \
438 #define KERN_NISDOMAINNAME	22	/* string: YP domain name */
445 #define	KERN_BOOTFILE		28	/* string: name of booted kernel */
483 #define	KERN_PROCNAME 		62	/* setup process program  name(2*MAXCOMLEN) */
492 #define	KERN_THREADNAME		71	/* set/get thread name */
701 		char	e_login[COMAPT_MAXLOGNAME];	/* short setlogin() name */
769 		char	e_login[COMAPT_MAXLOGNAME];	/* short setlogin() name */
798 		char	e_login[COMAPT_MAXLOGNAME];	/* short setlogin() name */
977  *                               should not be used to infer features, and only used to name the processors thread architecture.
1080 #define	CTL_DEBUG_NAME		0	/* string: variable name */
1105 	char	*debugname;	/* name of debugging variable */
1125 int	kernel_sysctl(struct proc *p, int *name, u_int namelen, void *old,
1127 int	userland_sysctl(struct proc *p, int *name, u_int namelen, user_addr_t old,
1134  *	(*sysctlfn)(name, namelen, oldval, oldlenp, newval, newlen);
1136  * The name parameter points at the next component of the name to be
1138  * the name.