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31 * From: @(#)if.h 8.1 (Berkeley) 6/10/93
35 #ifndef _NET_IF_CLONE_H_
36 #define _NET_IF_CLONE_H_
40 #include <sys/_eventhandler.h>
42 #define CLONE_COMPAT_13
49 uint32_t unit; /* Selected unit when IFC_C_AUTOUNIT set */
54 typedef int ifc_match_f(struct if_clone *ifc, const char *name);
55 typedef int ifc_create_f(struct if_clone *ifc, char *name, size_t maxlen,
56 struct ifc_data *ifd, struct ifnet **ifpp);
57 typedef int ifc_destroy_f(struct if_clone *ifc, struct ifnet *ifp, uint32_t flags);
59 struct if_clone_addreq {
60 uint16_t version; /* Always 0 for now */
63 uint32_t maxunit; /* Maximum allowed unit number */
65 ifc_create_f *create_f;
66 ifc_destroy_f *destroy_f;
69 #define IFC_F_NOGROUP 0x01 /* Creation flag: don't add unit group */
70 #define IFC_F_AUTOUNIT 0x02 /* Creation flag: automatically select unit */
71 #define IFC_F_SYSSPACE 0x04 /* Cloner callback: params pointer is in kernel memory */
72 #define IFC_F_FORCE 0x08 /* Deletion flag: force interface deletion */
74 #define IFC_NOGROUP IFC_F_NOGROUP
76 struct if_clone *ifc_attach_cloner(const char *name, struct if_clone_addreq *req);
77 void ifc_detach_cloner(struct if_clone *ifc);
78 int ifc_create_ifp(const char *name, struct ifc_data *ifd,
81 void ifc_link_ifp(struct if_clone *ifc, struct ifnet *ifp);
82 bool ifc_unlink_ifp(struct if_clone *ifc, struct ifnet *ifp);
84 int ifc_copyin(const struct ifc_data *ifd, void *target, size_t len);
85 #ifdef CLONE_COMPAT_13
88 typedef int ifc_match_t(struct if_clone *, const char *);
89 typedef int ifc_create_t(struct if_clone *, char *, size_t, caddr_t);
90 typedef int ifc_destroy_t(struct if_clone *, struct ifnet *);
92 typedef int ifcs_create_t(struct if_clone *, int, caddr_t);
93 typedef void ifcs_destroy_t(struct ifnet *);
95 /* Interface cloner (de)allocating functions. */
97 if_clone_advanced(const char *, u_int, ifc_match_t, ifc_create_t,
100 if_clone_simple(const char *, ifcs_create_t, ifcs_destroy_t, u_int);
101 void if_clone_detach(struct if_clone *);
104 /* Unit (de)allocating functions. */
105 int ifc_name2unit(const char *name, int *unit);
106 int ifc_alloc_unit(struct if_clone *, int *);
107 void ifc_free_unit(struct if_clone *, int);
108 const char *ifc_name(struct if_clone *);
109 void ifc_flags_set(struct if_clone *, int flags);
110 int ifc_flags_get(struct if_clone *);
112 /* Interface clone event. */
113 typedef void (*if_clone_event_handler_t)(void *, struct if_clone *);
114 EVENTHANDLER_DECLARE(if_clone_event, if_clone_event_handler_t);
116 /* The below interfaces used only by net/if.c. */
117 void vnet_if_clone_init(void);
118 int if_clone_create(char *, size_t, caddr_t);
119 int if_clone_destroy(const char *);
120 int if_clone_list(struct if_clonereq *);
121 void if_clone_restoregroup(struct ifnet *);
123 /* The below interfaces are used only by epair(4). */
124 void if_clone_addif(struct if_clone *, struct ifnet *);
125 int if_clone_destroyif(struct if_clone *, struct ifnet *);
128 #endif /* !_NET_IF_CLONE_H_ */