2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1982, 1986, 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 nl_parsed_link;
64 struct nl_parsed_link *lattrs;/* (in) Parsed link attributes */
65 const struct nlattr_bmask *bm; /* (in) Bitmask of set link attributes */
66 struct nl_pstate *npt; /* (in) Netlink context */
67 void *params;/* (in) (Compat) data from ioctl */
68 uint32_t flags; /* (in) IFC_F flags */
69 uint32_t unit; /* (in/out) Selected unit when IFC_C_AUTOUNIT set */
70 int error; /* (out) Return error code */
71 struct ifnet *ifp; /* (out) Returned ifp */
74 typedef int ifc_create_nl_f(struct if_clone *ifc, char *name, size_t maxlen,
75 struct ifc_data_nl *ifd);
76 typedef int ifc_modify_nl_f(struct ifnet *ifp, struct ifc_data_nl *ifd);
77 typedef void ifc_dump_nl_f(struct ifnet *ifp, struct nl_writer *nw);
79 struct if_clone_addreq {
80 uint16_t version; /* Always 0 for now */
83 uint32_t maxunit; /* Maximum allowed unit number */
85 ifc_create_f *create_f;
86 ifc_destroy_f *destroy_f;
89 struct if_clone_addreq_v2 {
90 uint16_t version; /* 2 */
93 uint32_t maxunit; /* Maximum allowed unit number */
95 ifc_create_f *create_f;
96 ifc_destroy_f *destroy_f;
97 ifc_create_nl_f *create_nl_f;
98 ifc_modify_nl_f *modify_nl_f;
99 ifc_dump_nl_f *dump_nl_f;
102 #define IFC_F_SPARE 0x01
103 #define IFC_F_AUTOUNIT 0x02 /* Creation flag: automatically select unit */
104 #define IFC_F_SYSSPACE 0x04 /* Cloner callback: params pointer is in kernel memory */
105 #define IFC_F_FORCE 0x08 /* Deletion flag: force interface deletion */
106 #define IFC_F_CREATE 0x10 /* Creation flag: indicate creation request */
108 struct if_clone *ifc_attach_cloner(const char *name, struct if_clone_addreq *req);
109 void ifc_detach_cloner(struct if_clone *ifc);
110 int ifc_create_ifp(const char *name, struct ifc_data *ifd, struct ifnet **ifpp);
112 bool ifc_create_ifp_nl(const char *name, struct ifc_data_nl *ifd);
113 bool ifc_modify_ifp_nl(struct ifnet *ifp, struct ifc_data_nl *ifd);
114 bool ifc_dump_ifp_nl(struct ifnet *ifp, struct nl_writer *nw);
116 void ifc_link_ifp(struct if_clone *ifc, struct ifnet *ifp);
117 bool ifc_unlink_ifp(struct if_clone *ifc, struct ifnet *ifp);
119 int ifc_copyin(const struct ifc_data *ifd, void *target, size_t len);
120 #ifdef CLONE_COMPAT_13
123 typedef int ifc_match_t(struct if_clone *, const char *);
124 typedef int ifc_create_t(struct if_clone *, char *, size_t, caddr_t);
125 typedef int ifc_destroy_t(struct if_clone *, struct ifnet *);
127 typedef int ifcs_create_t(struct if_clone *, int, caddr_t);
128 typedef void ifcs_destroy_t(struct ifnet *);
130 /* Interface cloner (de)allocating functions. */
132 if_clone_advanced(const char *, u_int, ifc_match_t, ifc_create_t,
135 if_clone_simple(const char *, ifcs_create_t, ifcs_destroy_t, u_int);
136 void if_clone_detach(struct if_clone *);
139 /* Unit (de)allocating functions. */
140 int ifc_name2unit(const char *name, int *unit);
141 int ifc_alloc_unit(struct if_clone *, int *);
142 void ifc_free_unit(struct if_clone *, int);
144 /* Interface clone event. */
145 typedef void (*if_clone_event_handler_t)(void *, struct if_clone *);
146 EVENTHANDLER_DECLARE(if_clone_event, if_clone_event_handler_t);
148 /* The below interfaces used only by net/if.c. */
149 void vnet_if_clone_init(void);
150 int if_clone_create(char *, size_t, caddr_t);
151 int if_clone_destroy(const char *);
152 int if_clone_list(struct if_clonereq *);
153 void if_clone_restoregroup(struct ifnet *);
155 /* The below interfaces are used only by epair(4). */
156 void if_clone_addif(struct if_clone *, struct ifnet *);
157 int if_clone_destroyif(struct if_clone *, struct ifnet *);
160 #endif /* !_NET_IF_CLONE_H_ */