xref: /xnu-8020.140.41/bsd/net/if.h (revision 27b03b360a988dfd3dfdf34262bb0042026747cc)
1 /*
2  * Copyright (c) 2000-2021 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /*
29  * Copyright (c) 1982, 1986, 1989, 1993
30  *	The Regents of the University of California.  All rights reserved.
31  *
32  * Redistribution and use in source and binary forms, with or without
33  * modification, are permitted provided that the following conditions
34  * are met:
35  * 1. Redistributions of source code must retain the above copyright
36  *    notice, this list of conditions and the following disclaimer.
37  * 2. Redistributions in binary form must reproduce the above copyright
38  *    notice, this list of conditions and the following disclaimer in the
39  *    documentation and/or other materials provided with the distribution.
40  * 3. All advertising materials mentioning features or use of this software
41  *    must display the following acknowledgement:
42  *	This product includes software developed by the University of
43  *	California, Berkeley and its contributors.
44  * 4. Neither the name of the University nor the names of its contributors
45  *    may be used to endorse or promote products derived from this software
46  *    without specific prior written permission.
47  *
48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58  * SUCH DAMAGE.
59  *
60  *	@(#)if.h	8.1 (Berkeley) 6/10/93
61  */
62 
63 #ifndef _NET_IF_H_
64 #define _NET_IF_H_
65 
66 #define IF_NAMESIZE     16
67 
68 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
69 #ifdef DRIVERKIT
70 #include <stddef.h>
71 #else
72 #include <sys/cdefs.h>
73 #include <sys/appleapiopts.h>
74 #ifdef __APPLE__
75 
76 #include <net/if_var.h>
77 #include <net/net_kev.h>
78 #include <sys/types.h>
79 #include <sys/socket.h>
80 
81 #ifdef PRIVATE
82 #include <net/if_dl.h>
83 #include <netinet/in.h>
84 #include <mach/vm_types.h>
85 #endif /* PRIVATE */
86 #endif
87 #endif /* DRIVERKIT */
88 
89 #ifndef IFNAMSIZ
90 #define IFNAMSIZ        IF_NAMESIZE
91 #endif
92 
93 #ifndef DRIVERKIT
94 struct if_clonereq {
95 	int     ifcr_total;             /* total cloners (out) */
96 	int     ifcr_count;             /* room for this many in user buffer */
97 	char    *ifcr_buffer;           /* buffer for cloner names */
98 };
99 
100 #ifdef KERNEL_PRIVATE
101 #define IF_MAXUNIT      0x7fff  /* historical value */
102 
103 struct if_clonereq64 {
104 	int     ifcr_total;             /* total cloners (out) */
105 	int     ifcr_count;             /* room for this many in user buffer */
106 	user64_addr_t ifcru_buffer      __attribute__((aligned(8)));
107 };
108 
109 struct if_clonereq32 {
110 	int     ifcr_total;             /* total cloners (out) */
111 	int     ifcr_count;             /* room for this many in user buffer */
112 	user32_addr_t ifcru_buffer;
113 };
114 #endif /* KERNEL_PRIVATE */
115 
116 #define IFF_UP          0x1             /* interface is up */
117 #define IFF_BROADCAST   0x2             /* broadcast address valid */
118 #define IFF_DEBUG       0x4             /* turn on debugging */
119 #define IFF_LOOPBACK    0x8             /* is a loopback net */
120 #define IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
121 #define IFF_NOTRAILERS  0x20            /* obsolete: avoid use of trailers */
122 #define IFF_RUNNING     0x40            /* resources allocated */
123 #define IFF_NOARP       0x80            /* no address resolution protocol */
124 #define IFF_PROMISC     0x100           /* receive all packets */
125 #define IFF_ALLMULTI    0x200           /* receive all multicast packets */
126 #define IFF_OACTIVE     0x400           /* transmission in progress */
127 #define IFF_SIMPLEX     0x800           /* can't hear own transmissions */
128 #define IFF_LINK0       0x1000          /* per link layer defined bit */
129 #define IFF_LINK1       0x2000          /* per link layer defined bit */
130 #define IFF_LINK2       0x4000          /* per link layer defined bit */
131 #define IFF_ALTPHYS     IFF_LINK2       /* use alternate physical connection */
132 #define IFF_MULTICAST   0x8000          /* supports multicast */
133 
134 #ifdef PRIVATE
135 /* extended flags definitions:  (all bits reserved for internal/future use) */
136 #define IFEF_AUTOCONFIGURING    0x00000001      /* allow BOOTP/DHCP replies to enter */
137 #define IFEF_ENQUEUE_MULTI      0x00000002      /* enqueue multiple packets at once */
138 #define IFEF_DELAY_START        0x00000004      /* delay start callback */
139 #define IFEF_PROBE_CONNECTIVITY 0x00000008      /* Probe connections going over this interface */
140 #define IFEF_ADV_REPORT         0x00000010      /* Supports interface advisory report */
141 #define IFEF_IPV6_DISABLED      0x00000020      /* coupled to ND6_IFF_IFDISABLED */
142 #define IFEF_ACCEPT_RTADV       0x00000040      /* accepts IPv6 RA on the interface */
143 #define IFEF_TXSTART            0x00000080      /* has start callback */
144 #define IFEF_RXPOLL             0x00000100      /* supports opportunistic input poll */
145 #define IFEF_VLAN               0x00000200      /* interface has one or more vlans */
146 #define IFEF_BOND               0x00000400      /* interface is part of bond */
147 #define IFEF_ARPLL              0x00000800      /* ARP for IPv4LL addresses */
148 #define IFEF_CLAT46             0x00001000      /* CLAT46 RFC 6877 */
149 
150 #define IS_INTF_CLAT46(ifp)     ((ifp) != NULL && ((ifp)->if_eflags & IFEF_CLAT46))
151 #define INTF_ADJUST_MTU_FOR_CLAT46(intf)                \
152     (IS_INTF_CLAT46((intf)) ||                          \
153      IS_INTF_CLAT46((intf)->if_delegated.ifp))          \
154 
155 /*
156  * XXX IFEF_NOAUTOIPV6LL is deprecated and should be done away with.
157  * Configd pretty much manages the interface configuration.
158  * Rather than looking at the flag we check if a specific LLA
159  * has to be configured or the IID has to be generated by kernel.
160  */
161 #define IFEF_NOAUTOIPV6LL       0x00002000      /* Need explicit IPv6 LL address */
162 #define IFEF_EXPENSIVE          0x00004000      /* Data access has a cost */
163 #define IFEF_IPV4_ROUTER        0x00008000      /* interior when in IPv4 router mode */
164 #define IFEF_LOCALNET_PRIVATE   0x00020000      /* local private network */
165 #define IFEF_SERVICE_TRIGGERED  IFEF_LOCALNET_PRIVATE
166 #define IFEF_IPV6_ND6ALT        0x00040000      /* alternative. KPI for ND6 */
167 #define IFEF_RESTRICTED_RECV    0x00080000      /* interface restricts inbound pkts */
168 #define IFEF_AWDL               0x00100000      /* Apple Wireless Direct Link */
169 #define IFEF_NOACKPRI           0x00200000      /* No TCP ACK prioritization */
170 #define IFEF_AWDL_RESTRICTED    0x00400000      /* Restricted AWDL mode */
171 #define IFEF_2KCL               0x00800000      /* prefers 2K cluster (socket based tunnel) */
172 #define IFEF_ECN_ENABLE         0x01000000      /* use ECN for TCP connections on the interface */
173 #define IFEF_ECN_DISABLE        0x02000000      /* do not use ECN for TCP connections on the interface */
174 #define IFEF_SKYWALK_NATIVE     0x04000000      /* Native Skywalk support */
175 #define IFEF_3CA                0x08000000      /* Capable of 3CA */
176 #define IFEF_SENDLIST           0x10000000      /* Supports tx packet lists */
177 #define IFEF_DIRECTLINK         0x20000000      /* point-to-point topology */
178 #define IFEF_QOSMARKING_ENABLED 0x40000000      /* QoS marking is enabled */
179 #define IFEF_UPDOWNCHANGE       0x80000000      /* up/down state is changing */
180 
181 #ifdef XNU_KERNEL_PRIVATE
182 /*
183  * Extra flags
184  */
185 #define IFXF_WAKE_ON_MAGIC_PACKET       0x00000001 /* wake on magic packet */
186 #define IFXF_TIMESTAMP_ENABLED          0x00000002 /* time stamping enabled */
187 #define IFXF_NX_NOAUTO                  0x00000004 /* no auto config nexus */
188 #define IFXF_LEGACY                     0x00000008 /* legacy (non-netif) mode */
189 #define IFXF_LOW_INTERNET_UL            0x00000010 /* Uplink Low Internet is confirmed */
190 #define IFXF_LOW_INTERNET_DL            0x00000020 /* Downlink Low Internet is confirmed */
191 #define IFXF_ALLOC_KPI                  0x00000040 /* Allocated via the ifnet_alloc KPI */
192 #define IFXF_LOW_POWER                  0x00000080 /* Low Power Mode */
193 #define IFXF_MPK_LOG                    0x00000100 /* Multi-layer Packet Logging */
194 #define IFXF_CONSTRAINED                0x00000200 /* Constrained - Save Data Mode */
195 #define IFXF_LOW_LATENCY                0x00000400 /* Low latency interface */
196 #define IFXF_MARK_WAKE_PKT              0x00000800 /* Mark next input packet as wake packet */
197 /*
198  * Current requirements for an AWDL interface.  Setting/clearing IFEF_AWDL
199  * will also trigger the setting/clearing of the rest of the flags.  Once
200  * IFEF_AWDL is set, the rest of flags cannot be cleared, by definition.
201  */
202 #define IFEF_AWDL_MASK \
203 	(IFEF_LOCALNET_PRIVATE | IFEF_IPV6_ND6ALT | IFEF_RESTRICTED_RECV | \
204 	IFEF_AWDL)
205 #endif /* XNU_KERNEL_PRIVATE */
206 #endif /* PRIVATE */
207 
208 #ifdef KERNEL_PRIVATE
209 /*
210  * !!! NOTE !!!
211  *
212  * if_idle_flags definitions: (all bits are reserved for internal/future
213  * use). Setting these flags MUST be done via the ifnet_set_idle_flags()
214  * KPI due to the associated reference counting.  Clearing them may be done by
215  * calling the KPI, otherwise implicitly at interface detach time.  Setting
216  * the if_idle_flags field to a non-zero value will cause the networking
217  * stack to aggressively purge expired objects (routes, etc.)
218  */
219 #define IFRF_IDLE_NOTIFY        0x1     /* Generate notifications on idle */
220 
221 /* flags set internally only: */
222 #define IFF_CANTCHANGE \
223 	(IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
224 	    IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
225 #endif /* KERNEL_PRIVATE */
226 
227 /*
228  * Capabilities that interfaces can advertise.
229  *
230  * struct ifnet.if_capabilities
231  *   contains the optional features & capabilities a particular interface
232  *   supports (not only the driver but also the detected hw revision).
233  *   Capabilities are defined by IFCAP_* below.
234  * struct ifnet.if_capenable
235  *   contains the enabled (either by default or through ifconfig) optional
236  *   features & capabilities on this interface.
237  *   Capabilities are defined by IFCAP_* below.
238  * struct if_data.ifi_hwassist in IFNET_* form, defined in net/kpi_interface.h,
239  *   contains the enabled optional features & capabilites that can be used
240  *   individually per packet and are specified in the mbuf pkthdr.csum_flags
241  *   field.  IFCAP_* and IFNET_* do not match one to one and IFNET_* may be
242  *   more detailed or differentiated than IFCAP_*.
243  *   IFNET_* hwassist flags have corresponding CSUM_* in sys/mbuf.h
244  */
245 #define IFCAP_RXCSUM            0x00001 /* can offload checksum on RX */
246 #define IFCAP_TXCSUM            0x00002 /* can offload checksum on TX */
247 #define IFCAP_VLAN_MTU          0x00004 /* VLAN-compatible MTU */
248 #define IFCAP_VLAN_HWTAGGING    0x00008 /* hardware VLAN tag support */
249 #define IFCAP_JUMBO_MTU         0x00010 /* 9000 byte MTU supported */
250 #define IFCAP_TSO4              0x00020 /* can do TCP Segmentation Offload */
251 #define IFCAP_TSO6              0x00040 /* can do TCP6 Segmentation Offload */
252 #define IFCAP_LRO               0x00080 /* can do Large Receive Offload */
253 #define IFCAP_AV                0x00100 /* can do 802.1 AV Bridging */
254 #define IFCAP_TXSTATUS          0x00200 /* can return linklevel xmit status */
255 #define IFCAP_SKYWALK           0x00400 /* Skywalk mode supported/enabled */
256 #define IFCAP_HW_TIMESTAMP      0x00800 /* Time stamping in hardware */
257 #define IFCAP_SW_TIMESTAMP      0x01000 /* Time stamping in software */
258 #define IFCAP_CSUM_PARTIAL      0x02000 /* can offload partial checksum */
259 #define IFCAP_CSUM_ZERO_INVERT  0x04000 /* can invert 0 to -0 (0xffff) */
260 
261 #define IFCAP_HWCSUM    (IFCAP_RXCSUM | IFCAP_TXCSUM)
262 #define IFCAP_TSO       (IFCAP_TSO4 | IFCAP_TSO6)
263 
264 #define IFCAP_VALID (IFCAP_HWCSUM | IFCAP_TSO | IFCAP_LRO | IFCAP_VLAN_MTU | \
265 	IFCAP_VLAN_HWTAGGING | IFCAP_JUMBO_MTU | IFCAP_AV | IFCAP_TXSTATUS | \
266 	IFCAP_SKYWALK | IFCAP_SW_TIMESTAMP | IFCAP_HW_TIMESTAMP | \
267 	IFCAP_CSUM_PARTIAL | IFCAP_CSUM_ZERO_INVERT)
268 
269 #define IFQ_MAXLEN      128
270 #define IFNET_SLOWHZ    1       /* granularity is 1 second */
271 #define IFQ_TARGET_DELAY        (10ULL * 1000 * 1000)   /* 10 ms */
272 #define IFQ_UPDATE_INTERVAL     (100ULL * 1000 * 1000)  /* 100 ms */
273 
274 /*
275  * Message format for use in obtaining information about interfaces
276  * from sysctl and the routing socket
277  */
278 struct if_msghdr {
279 	unsigned short  ifm_msglen;     /* to skip non-understood messages */
280 	unsigned char   ifm_version;    /* future binary compatability */
281 	unsigned char   ifm_type;       /* message type */
282 	int             ifm_addrs;      /* like rtm_addrs */
283 	int             ifm_flags;      /* value of if_flags */
284 	unsigned short  ifm_index;      /* index for associated ifp */
285 	struct  if_data ifm_data;       /* statistics and other data about if */
286 };
287 
288 /*
289  * Message format for use in obtaining information about interface addresses
290  * from sysctl and the routing socket
291  */
292 struct ifa_msghdr {
293 	unsigned short  ifam_msglen;    /* to skip non-understood messages */
294 	unsigned char   ifam_version;   /* future binary compatability */
295 	unsigned char   ifam_type;      /* message type */
296 	int             ifam_addrs;     /* like rtm_addrs */
297 	int             ifam_flags;     /* value of ifa_flags */
298 	unsigned short  ifam_index;     /* index for associated ifp */
299 	int             ifam_metric;    /* value of ifa_metric */
300 };
301 
302 /*
303  * Message format for use in obtaining information about multicast addresses
304  * from the routing socket
305  */
306 struct ifma_msghdr {
307 	unsigned short  ifmam_msglen;   /* to skip non-understood messages */
308 	unsigned char   ifmam_version;  /* future binary compatability */
309 	unsigned char   ifmam_type;     /* message type */
310 	int             ifmam_addrs;    /* like rtm_addrs */
311 	int             ifmam_flags;    /* value of ifa_flags */
312 	unsigned short  ifmam_index;    /* index for associated ifp */
313 };
314 
315 /*
316  * Message format for use in obtaining information about interfaces
317  * from sysctl
318  */
319 struct if_msghdr2 {
320 	u_short ifm_msglen;     /* to skip over non-understood messages */
321 	u_char  ifm_version;    /* future binary compatability */
322 	u_char  ifm_type;       /* message type */
323 	int     ifm_addrs;      /* like rtm_addrs */
324 	int     ifm_flags;      /* value of if_flags */
325 	u_short ifm_index;      /* index for associated ifp */
326 	int     ifm_snd_len;    /* instantaneous length of send queue */
327 	int     ifm_snd_maxlen; /* maximum length of send queue */
328 	int     ifm_snd_drops;  /* number of drops in send queue */
329 	int     ifm_timer;      /* time until if_watchdog called */
330 	struct if_data64        ifm_data;       /* statistics and other data */
331 };
332 
333 /*
334  * Message format for use in obtaining information about multicast addresses
335  * from sysctl
336  */
337 struct ifma_msghdr2 {
338 	u_short ifmam_msglen;   /* to skip over non-understood messages */
339 	u_char  ifmam_version;  /* future binary compatability */
340 	u_char  ifmam_type;     /* message type */
341 	int     ifmam_addrs;    /* like rtm_addrs */
342 	int     ifmam_flags;    /* value of ifa_flags */
343 	u_short ifmam_index;    /* index for associated ifp */
344 	int32_t ifmam_refcount;
345 };
346 
347 /*
348  * ifdevmtu: interface device mtu
349  *    Used with SIOCGIFDEVMTU to get the current mtu in use by the device,
350  *    as well as the minimum and maximum mtu allowed by the device.
351  */
352 struct ifdevmtu {
353 	int     ifdm_current;
354 	int     ifdm_min;
355 	int     ifdm_max;
356 };
357 
358 #pragma pack(4)
359 
360 /*
361  *  ifkpi: interface kpi ioctl
362  *  Used with SIOCSIFKPI and SIOCGIFKPI.
363  *
364  *  ifk_module_id - From in the kernel, a value from kev_vendor_code_find. From
365  *       user space, a value from SIOCGKEVVENDOR ioctl on a kernel event socket.
366  *  ifk_type - The type. Types are specific to each module id.
367  *  ifk_data - The data. ifk_ptr may be a 64bit pointer for 64 bit processes.
368  *
369  *  Copying data between user space and kernel space is done using copyin
370  *  and copyout. A process may be running in 64bit mode. In such a case,
371  *  the pointer will be a 64bit pointer, not a 32bit pointer. The following
372  *  sample is a safe way to copy the data in to the kernel from either a
373  *  32bit or 64bit process:
374  *
375  *  user_addr_t tmp_ptr;
376  *  if (IS_64BIT_PROCESS(current_proc())) {
377  *       tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr64);
378  *  }
379  *  else {
380  *       tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr);
381  *  }
382  *  error = copyin(tmp_ptr, allocated_dst_buffer, size of allocated_dst_buffer);
383  */
384 
385 struct ifkpi {
386 	unsigned int    ifk_module_id;
387 	unsigned int    ifk_type;
388 	union {
389 		void            *ifk_ptr;
390 		int             ifk_value;
391 #ifdef KERNEL
392 		u_int64_t       ifk_ptr64;
393 #endif /* KERNEL */
394 	} ifk_data;
395 };
396 
397 /* Wake capabilities of a interface */
398 #define IF_WAKE_ON_MAGIC_PACKET         0x01
399 #ifdef KERNEL_PRIVATE
400 #define IF_WAKE_VALID_FLAGS IF_WAKE_ON_MAGIC_PACKET
401 #endif /* KERNEL_PRIVATE */
402 
403 
404 #pragma pack()
405 
406 /*
407  * Interface request structure used for socket
408  * ioctl's.  All interface ioctl's must have parameter
409  * definitions which begin with ifr_name.  The
410  * remainder may be interface specific.
411  */
412 struct  ifreq {
413 	char    ifr_name[IFNAMSIZ];             /* if name, e.g. "en0" */
414 	union {
415 		struct  sockaddr ifru_addr;
416 		struct  sockaddr ifru_dstaddr;
417 		struct  sockaddr ifru_broadaddr;
418 		short   ifru_flags;
419 		int     ifru_metric;
420 		int     ifru_mtu;
421 		int     ifru_phys;
422 		int     ifru_media;
423 		int     ifru_intval;
424 		caddr_t ifru_data;
425 #ifdef KERNEL_PRIVATE
426 		u_int64_t ifru_data64;  /* 64-bit ifru_data */
427 #endif /* KERNEL_PRIVATE */
428 		struct  ifdevmtu ifru_devmtu;
429 		struct  ifkpi   ifru_kpi;
430 		u_int32_t ifru_wake_flags;
431 		u_int32_t ifru_route_refcnt;
432 #ifdef PRIVATE
433 		int     ifru_link_quality_metric;
434 #endif /* PRIVATE */
435 		int     ifru_cap[2];
436 #ifdef PRIVATE
437 		struct {
438 			uint32_t        ifo_flags;
439 #define IFRIFOF_BLOCK_OPPORTUNISTIC     0x00000001
440 			uint32_t        ifo_inuse;
441 		} ifru_opportunistic;
442 		u_int64_t ifru_eflags;
443 		u_int64_t ifru_xflags;
444 		struct {
445 			int32_t         ifl_level;
446 			uint32_t        ifl_flags;
447 #define IFRLOGF_DLIL                    0x00000001
448 #define IFRLOGF_FAMILY                  0x00010000
449 #define IFRLOGF_DRIVER                  0x01000000
450 #define IFRLOGF_FIRMWARE                0x10000000
451 			int32_t         ifl_category;
452 #define IFRLOGCAT_CONNECTIVITY          1
453 #define IFRLOGCAT_QUALITY               2
454 #define IFRLOGCAT_PERFORMANCE           3
455 			int32_t         ifl_subcategory;
456 		} ifru_log;
457 		u_int32_t ifru_delegated;
458 		struct {
459 			uint32_t        ift_type;
460 			uint32_t        ift_family;
461 #define IFRTYPE_FAMILY_ANY              0
462 #define IFRTYPE_FAMILY_LOOPBACK         1
463 #define IFRTYPE_FAMILY_ETHERNET         2
464 #define IFRTYPE_FAMILY_SLIP             3
465 #define IFRTYPE_FAMILY_TUN              4
466 #define IFRTYPE_FAMILY_VLAN             5
467 #define IFRTYPE_FAMILY_PPP              6
468 #define IFRTYPE_FAMILY_PVC              7
469 #define IFRTYPE_FAMILY_DISC             8
470 #define IFRTYPE_FAMILY_MDECAP           9
471 #define IFRTYPE_FAMILY_GIF              10
472 #define IFRTYPE_FAMILY_FAITH            11
473 #define IFRTYPE_FAMILY_STF              12
474 #define IFRTYPE_FAMILY_FIREWIRE         13
475 #define IFRTYPE_FAMILY_BOND             14
476 #define IFRTYPE_FAMILY_CELLULAR         15
477 #define IFRTYPE_FAMILY_6LOWPAN          16
478 #define IFRTYPE_FAMILY_UTUN             17
479 #define IFRTYPE_FAMILY_IPSEC            18
480 			uint32_t        ift_subfamily;
481 #define IFRTYPE_SUBFAMILY_ANY           0
482 #define IFRTYPE_SUBFAMILY_USB           1
483 #define IFRTYPE_SUBFAMILY_BLUETOOTH     2
484 #define IFRTYPE_SUBFAMILY_WIFI          3
485 #define IFRTYPE_SUBFAMILY_THUNDERBOLT   4
486 #define IFRTYPE_SUBFAMILY_RESERVED      5
487 #define IFRTYPE_SUBFAMILY_INTCOPROC     6
488 #define IFRTYPE_SUBFAMILY_QUICKRELAY    7
489 #define IFRTYPE_SUBFAMILY_DEFAULT       8
490 		} ifru_type;
491 #endif /* PRIVATE */
492 		u_int32_t ifru_functional_type;
493 #define IFRTYPE_FUNCTIONAL_UNKNOWN              0
494 #define IFRTYPE_FUNCTIONAL_LOOPBACK             1
495 #define IFRTYPE_FUNCTIONAL_WIRED                2
496 #define IFRTYPE_FUNCTIONAL_WIFI_INFRA           3
497 #define IFRTYPE_FUNCTIONAL_WIFI_AWDL            4
498 #define IFRTYPE_FUNCTIONAL_CELLULAR             5
499 #define IFRTYPE_FUNCTIONAL_INTCOPROC            6
500 #define IFRTYPE_FUNCTIONAL_COMPANIONLINK        7
501 #define IFRTYPE_FUNCTIONAL_LAST                 7
502 #ifdef PRIVATE
503 		u_int32_t ifru_expensive;
504 		u_int32_t ifru_constrained;
505 		u_int32_t ifru_2kcl;
506 		struct {
507 			u_int32_t qlen;
508 			u_int32_t timeout;
509 		} ifru_start_delay;
510 		struct if_interface_state       ifru_interface_state;
511 		u_int32_t ifru_probe_connectivity;
512 		u_int32_t ifru_ecn_mode;
513 #define IFRTYPE_ECN_DEFAULT             0
514 #define IFRTYPE_ECN_ENABLE              1
515 #define IFRTYPE_ECN_DISABLE             2
516 		u_int32_t ifru_qosmarking_mode;
517 #define IFRTYPE_QOSMARKING_MODE_NONE            0
518 #define IFRTYPE_QOSMARKING_FASTLANE     1       /* supported: socket/channel */
519 #define IFRTYPE_QOSMARKING_RFC4594      2       /* supported: channel only */
520 #define IFRTYPE_QOSMARKING_CUSTOM       3       /* supported: socket/channel */
521 		u_int32_t ifru_qosmarking_enabled;
522 		u_int32_t ifru_disable_output;
523 		u_int32_t ifru_low_internet;
524 #define IFRTYPE_LOW_INTERNET_DISABLE_UL_DL      0x0000
525 #define IFRTYPE_LOW_INTERNET_ENABLE_UL          0x0001
526 #define IFRTYPE_LOW_INTERNET_ENABLE_DL          0x0002
527 		int ifru_low_power_mode;
528 		u_int32_t ifru_tcp_kao_max;
529 		int ifru_mpk_log;        /* Multi Layer Packet Log */
530 		u_int32_t ifru_noack_prio;
531 		struct {
532 			u_int8_t up_bucket;
533 			u_int8_t down_bucket;
534 		} ifru_estimated_throughput;
535 		struct {
536 			u_int8_t technology;
537 			u_int8_t channel;
538 		} ifru_radio_details;
539 #endif /* PRIVATE */
540 	} ifr_ifru;
541 #define ifr_addr        ifr_ifru.ifru_addr      /* address */
542 #define ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-to-p link */
543 #define ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address */
544 #ifdef __APPLE__
545 #define ifr_flags       ifr_ifru.ifru_flags     /* flags */
546 #else
547 #define ifr_flags       ifr_ifru.ifru_flags[0]  /* flags */
548 #define ifr_prevflags   ifr_ifru.ifru_flags[1]  /* flags */
549 #endif /* __APPLE__ */
550 #define ifr_metric      ifr_ifru.ifru_metric    /* metric */
551 #define ifr_mtu         ifr_ifru.ifru_mtu       /* mtu */
552 #define ifr_phys        ifr_ifru.ifru_phys      /* physical wire */
553 #define ifr_media       ifr_ifru.ifru_media     /* physical media */
554 #define ifr_data        ifr_ifru.ifru_data      /* for use by interface */
555 #define ifr_devmtu      ifr_ifru.ifru_devmtu
556 #define ifr_intval      ifr_ifru.ifru_intval    /* integer value */
557 #ifdef KERNEL_PRIVATE
558 #define ifr_data64      ifr_ifru.ifru_data64    /* 64-bit pointer */
559 #endif /* KERNEL_PRIVATE */
560 #define ifr_kpi         ifr_ifru.ifru_kpi
561 #define ifr_wake_flags  ifr_ifru.ifru_wake_flags /* wake capabilities */
562 #define ifr_route_refcnt ifr_ifru.ifru_route_refcnt /* route references count */
563 #ifdef PRIVATE
564 #define ifr_link_quality_metric ifr_ifru.ifru_link_quality_metric /* LQM */
565 #endif /* PRIVATE */
566 #define ifr_reqcap      ifr_ifru.ifru_cap[0]    /* requested capabilities */
567 #define ifr_curcap      ifr_ifru.ifru_cap[1]    /* current capabilities */
568 #ifdef PRIVATE
569 #define ifr_opportunistic       ifr_ifru.ifru_opportunistic
570 #define ifr_eflags      ifr_ifru.ifru_eflags    /* extended flags  */
571 #define ifr_xflags      ifr_ifru.ifru_xflags    /* extra flags  */
572 #define ifr_log         ifr_ifru.ifru_log       /* logging level/flags */
573 #define ifr_delegated   ifr_ifru.ifru_delegated /* delegated interface index */
574 #define ifr_expensive   ifr_ifru.ifru_expensive
575 #define ifr_constrained   ifr_ifru.ifru_constrained
576 #define ifr_type        ifr_ifru.ifru_type      /* interface type */
577 #define ifr_functional_type     ifr_ifru.ifru_functional_type
578 #define ifr_2kcl        ifr_ifru.ifru_2kcl
579 #define ifr_start_delay_qlen    ifr_ifru.ifru_start_delay.qlen
580 #define ifr_start_delay_timeout ifr_ifru.ifru_start_delay.timeout
581 #define ifr_interface_state     ifr_ifru.ifru_interface_state
582 #define ifr_probe_connectivity  ifr_ifru.ifru_probe_connectivity
583 #define ifr_ecn_mode    ifr_ifru.ifru_ecn_mode
584 #define ifr_qosmarking_mode     ifr_ifru.ifru_qosmarking_mode
585 #define ifr_fastlane_capable    ifr_qosmarking_mode
586 #define ifr_qosmarking_enabled  ifr_ifru.ifru_qosmarking_enabled
587 #define ifr_fastlane_enabled    ifr_qosmarking_enabled
588 #define ifr_disable_output      ifr_ifru.ifru_disable_output
589 #define ifr_low_internet        ifr_ifru.ifru_low_internet
590 #define ifr_low_power_mode      ifr_ifru.ifru_low_power_mode
591 #define ifr_tcp_kao_max         ifr_ifru.ifru_tcp_kao_max
592 #define ifr_mpk_log             ifr_ifru.ifru_mpk_log
593 #define ifr_noack_prio          ifr_ifru.ifru_noack_prio
594 #define ifr_estimated_throughput  ifr_ifru.ifru_estimated_throughput
595 #define ifr_radio_details       ifr_ifru.ifru_radio_details
596 
597 #endif /* PRIVATE */
598 };
599 
600 #define _SIZEOF_ADDR_IFREQ(ifr) \
601 	((ifr).ifr_addr.sa_len > sizeof (struct sockaddr) ? \
602 	(sizeof (struct ifreq) - sizeof (struct sockaddr) + \
603 	(ifr).ifr_addr.sa_len) : sizeof (struct ifreq))
604 
605 struct ifaliasreq {
606 	char    ifra_name[IFNAMSIZ];            /* if name, e.g. "en0" */
607 	struct  sockaddr ifra_addr;
608 	struct  sockaddr ifra_broadaddr;
609 	struct  sockaddr ifra_mask;
610 };
611 
612 struct rslvmulti_req {
613 	struct sockaddr *sa;
614 	struct sockaddr **llsa;
615 };
616 
617 #if !defined(KERNEL) || defined(KERNEL_PRIVATE)
618 #pragma pack(4)
619 
620 struct ifmediareq {
621 	char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
622 	int     ifm_current;            /* current media options */
623 	int     ifm_mask;               /* don't care mask */
624 	int     ifm_status;             /* media status */
625 	int     ifm_active;             /* active options */
626 	int     ifm_count;              /* # entries in ifm_ulist array */
627 	int     *ifm_ulist;             /* media words */
628 };
629 
630 #pragma pack()
631 #endif /* !KERNEL || KERNEL_PRIVATE */
632 
633 #ifdef KERNEL_PRIVATE
634 #pragma pack(4)
635 struct ifmediareq64 {
636 	char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
637 	int     ifm_current;            /* current media options */
638 	int     ifm_mask;               /* don't care mask */
639 	int     ifm_status;             /* media status */
640 	int     ifm_active;             /* active options */
641 	int     ifm_count;              /* # entries in ifm_ulist array */
642 	user64_addr_t ifmu_ulist __attribute__((aligned(8)));
643 };
644 
645 struct ifmediareq32 {
646 	char    ifm_name[IFNAMSIZ];     /* if name, e.g. "en0" */
647 	int     ifm_current;            /* current media options */
648 	int     ifm_mask;               /* don't care mask */
649 	int     ifm_status;             /* media status */
650 	int     ifm_active;             /* active options */
651 	int     ifm_count;              /* # entries in ifm_ulist array */
652 	user32_addr_t ifmu_ulist;       /* 32-bit pointer */
653 };
654 #pragma pack()
655 #endif /* KERNEL_PRIVATE */
656 #endif /* DRIVERKIT */
657 
658 #pragma pack(4)
659 struct  ifdrv {
660 	char            ifd_name[IFNAMSIZ];     /* if name, e.g. "en0" */
661 	unsigned long   ifd_cmd;
662 	size_t          ifd_len;                /* length of ifd_data buffer */
663 	void            *ifd_data;
664 };
665 #pragma pack()
666 
667 #ifndef DRIVERKIT
668 #ifdef KERNEL_PRIVATE
669 #pragma pack(4)
670 struct ifdrv32 {
671 	char            ifd_name[IFNAMSIZ];     /* if name, e.g. "en0" */
672 	u_int32_t       ifd_cmd;
673 	u_int32_t       ifd_len;
674 	user32_addr_t   ifd_data;
675 };
676 
677 struct  ifdrv64 {
678 	char            ifd_name[IFNAMSIZ];     /* if name, e.g. "en0" */
679 	u_int64_t       ifd_cmd;
680 	u_int64_t       ifd_len;
681 	user64_addr_t   ifd_data;
682 };
683 #pragma pack()
684 #endif /* KERNEL_PRIVATE */
685 
686 /*
687  * Structure used to retrieve aux status data from interfaces.
688  * Kernel suppliers to this interface should respect the formatting
689  * needed by ifconfig(8): each line starts with a TAB and ends with
690  * a newline.
691  */
692 
693 #define IFSTATMAX       800             /* 10 lines of text */
694 struct ifstat {
695 	char    ifs_name[IFNAMSIZ];     /* if name, e.g. "en0" */
696 	char    ascii[IFSTATMAX + 1];
697 };
698 
699 #if !defined(KERNEL) || defined(KERNEL_PRIVATE)
700 /*
701  * Structure used in SIOCGIFCONF request.
702  * Used to retrieve interface configuration
703  * for machine (useful for programs which
704  * must know all networks accessible).
705  */
706 #pragma pack(4)
707 struct  ifconf {
708 	int     ifc_len;                /* size of associated buffer */
709 	union {
710 		caddr_t ifcu_buf;
711 		struct  ifreq *ifcu_req;
712 	} ifc_ifcu;
713 };
714 #pragma pack()
715 #define ifc_buf ifc_ifcu.ifcu_buf       /* buffer address */
716 #define ifc_req ifc_ifcu.ifcu_req       /* array of structures returned */
717 #endif /* !KERNEL || KERNEL_PRIVATE */
718 
719 #if defined(KERNEL_PRIVATE)
720 #pragma pack(4)
721 struct ifconf32 {
722 	int     ifc_len;                /* size of associated buffer */
723 	struct {
724 		user32_addr_t ifcu_req;
725 	} ifc_ifcu;
726 };
727 
728 struct ifconf64 {
729 	int     ifc_len;                /* size of associated buffer */
730 	struct {
731 		user64_addr_t ifcu_req  __attribute__((aligned(8)));
732 	} ifc_ifcu;
733 };
734 #pragma pack()
735 #endif /* KERNEL_PRIVATE */
736 
737 /*
738  * DLIL KEV_DL_PROTO_ATTACHED/DETACHED structure
739  */
740 struct kev_dl_proto_data {
741 	struct net_event_data           link_data;
742 	u_int32_t                       proto_family;
743 	u_int32_t                       proto_remaining_count;
744 };
745 
746 #ifdef PRIVATE
747 /*
748  * Link Quality Metrics
749  *
750  *	IFNET_LQM_THRESH_OFF      Metric is not available; device is off.
751  *	IFNET_LQM_THRESH_UNKNOWN  Metric is not (yet) known.
752  *	IFNET_LQM_THRESH_BAD	  Link quality is considered bad by driver.
753  *	IFNET_LQM_THRESH_POOR     Link quality is considered poor by driver.
754  *	IFNET_LQM_THRESH_GOOD     Link quality is considered good by driver.
755  */
756 enum {
757 	IFNET_LQM_THRESH_OFF            = (-2),
758 	IFNET_LQM_THRESH_UNKNOWN        = (-1),
759 	IFNET_LQM_THRESH_ABORT          = 10,
760 	IFNET_LQM_THRESH_MINIMALLY_VIABLE = 20,
761 	IFNET_LQM_THRESH_POOR           = 50,
762 	IFNET_LQM_THRESH_GOOD           = 100
763 };
764 #define IFNET_LQM_THRESH_BAD    IFNET_LQM_THRESH_ABORT
765 
766 #ifdef XNU_KERNEL_PRIVATE
767 #define IFNET_LQM_MIN   IFNET_LQM_THRESH_OFF
768 #define IFNET_LQM_MAX   IFNET_LQM_THRESH_GOOD
769 #endif /* XNU_KERNEL_PRIVATE */
770 
771 /*
772  * DLIL KEV_DL_LINK_QUALITY_METRIC_CHANGED structure
773  */
774 struct kev_dl_link_quality_metric_data {
775 	struct net_event_data   link_data;
776 	int                     link_quality_metric;
777 };
778 
779 #define IF_DESCSIZE     128
780 
781 /*
782  * Structure for SIOC[SG]IFDESC
783  */
784 struct if_descreq {
785 	char                    ifdr_name[IFNAMSIZ];    /* interface name */
786 	u_int32_t               ifdr_len;               /* up to IF_DESCSIZE */
787 	u_int8_t                ifdr_desc[IF_DESCSIZE]; /* opaque data */
788 };
789 
790 /*
791  *	Output packet scheduling models
792  *
793  *	IFNET_SCHED_MODEL_NORMAL The default output packet scheduling model
794  *		where the driver or media does not require strict scheduling
795  *		strategy, and that the networking stack is free to choose the
796  *		most appropriate scheduling and queueing algorithm, including
797  *		shaping traffics.
798  *	IFNET_SCHED_MODEL_DRIVER_MANAGED The alternative output packet
799  *		scheduling model where the driver or media requires strict
800  *		scheduling strategy (e.g. 802.11 WMM), and that the networking
801  *		stack is only responsible for creating multiple queues for the
802  *		corresponding service classes.
803  */
804 enum {
805 	IFNET_SCHED_MODEL_NORMAL                = 0,
806 	IFNET_SCHED_MODEL_DRIVER_MANAGED        = 1,
807 	IFNET_SCHED_MODEL_FQ_CODEL              = 2,
808 #ifdef XNU_KERNEL_PRIVATE
809 	IFNET_SCHED_MODEL_MAX                   = 3,
810 #endif /* XNU_KERNEL_PRIVATE */
811 };
812 
813 /*
814  * Values for iflpr_flags
815  */
816 #define IFLPRF_ALTQ             0x1     /* configured via PF/ALTQ */
817 #define IFLPRF_DRVMANAGED       0x2     /* output queue scheduled by drv */
818 
819 /*
820  * Structure for SIOCGIFLINKPARAMS
821  */
822 struct if_linkparamsreq {
823 	char            iflpr_name[IFNAMSIZ];   /* interface name */
824 	u_int32_t       iflpr_flags;
825 	u_int32_t       iflpr_output_sched;
826 	u_int64_t       iflpr_output_tbr_rate;
827 	u_int32_t       iflpr_output_tbr_percent;
828 	u_int64_t       iflpr_input_tbr_rate;
829 	struct if_bandwidths iflpr_output_bw;
830 	struct if_bandwidths iflpr_input_bw;
831 	struct if_latencies iflpr_output_lt;
832 	struct if_latencies iflpr_input_lt;
833 	struct if_netem_params iflpr_input_netem;
834 	struct if_netem_params iflpr_output_netem;
835 };
836 
837 /*
838  * Structure for SIOCGIFQUEUESTATS
839  */
840 struct if_qstatsreq {
841 	char            ifqr_name[IFNAMSIZ];    /* interface name */
842 	u_int32_t       ifqr_slot;
843 	void            *ifqr_buf               __attribute__((aligned(8)));
844 	int              ifqr_len               __attribute__((aligned(8)));
845 };
846 
847 /*
848  * Node Proximity Metrics
849  */
850 enum {
851 	IFNET_NPM_THRESH_UNKNOWN        = (-1),
852 	IFNET_NPM_THRESH_NEAR           = 30,
853 	IFNET_NPM_THRESH_GENERAL        = 70,
854 	IFNET_NPM_THRESH_FAR            = 100,
855 };
856 
857 /*
858  *	Received Signal Strength Indication [special values]
859  *
860  *	IFNET_RSSI_UNKNOWN	Metric is not (yet) known.
861  */
862 enum {
863 	IFNET_RSSI_UNKNOWN      = ((-2147483647) - 1),    /* INT32_MIN */
864 };
865 
866 
867 /*
868  * DLIL KEV_DL_NODE_PRESENCE/KEV_DL_NODE_ABSENCE event structures
869  */
870 struct kev_dl_node_presence {
871 	struct net_event_data   link_data;
872 	struct sockaddr_in6     sin6_node_address;
873 	struct sockaddr_dl      sdl_node_address;
874 	int32_t                 rssi;
875 	int                     link_quality_metric;
876 	int                     node_proximity_metric;
877 	u_int8_t                node_service_info[48];
878 };
879 
880 struct kev_dl_node_absence {
881 	struct net_event_data   link_data;
882 	struct sockaddr_in6     sin6_node_address;
883 	struct sockaddr_dl      sdl_node_address;
884 };
885 
886 /*
887  * Structure for SIOC[SG]IFTHROTTLE
888  */
889 struct if_throttlereq {
890 	char            ifthr_name[IFNAMSIZ];   /* interface name */
891 	u_int32_t       ifthr_level;
892 };
893 
894 /*
895  *	Interface throttling levels
896  *
897  *	IFNET_THROTTLE_OFF The default throttling level (no throttling.)
898  *		All service class queues operate normally according to the
899  *		standard packet scheduler configuration.
900  *	IFNET_THROTTLE_OPPORTUNISTIC One or more service class queues that
901  *		are responsible for managing "opportunistic" traffics are
902  *		suspended.  Packets enqueued on those queues will be dropped
903  *		and a flow advisory error will be generated to the data
904  *		source.  Existing packets in the queues will stay enqueued
905  *		until the interface is no longer throttled, or until they
906  *		are explicitly flushed.
907  */
908 enum {
909 	IFNET_THROTTLE_OFF                      = 0,
910 	IFNET_THROTTLE_OPPORTUNISTIC            = 1,
911 #ifdef XNU_KERNEL_PRIVATE
912 	IFNET_THROTTLE_MAX                      = 2,
913 #endif /* XNU_KERNEL_PRIVATE */
914 };
915 
916 /*
917  * Structure for SIOC[A/D]IFAGENTID
918  */
919 struct if_agentidreq {
920 	char            ifar_name[IFNAMSIZ];    /* interface name */
921 	uuid_t          ifar_uuid;              /* agent UUID to add or delete */
922 };
923 
924 /*
925  * Structure for SIOCGIFAGENTIDS
926  */
927 struct if_agentidsreq {
928 	char            ifar_name[IFNAMSIZ];    /* interface name */
929 	u_int32_t       ifar_count;             /* number of agent UUIDs */
930 	uuid_t          *ifar_uuids;            /* array of agent UUIDs */
931 };
932 
933 #ifdef BSD_KERNEL_PRIVATE
934 struct if_agentidsreq32 {
935 	char            ifar_name[IFNAMSIZ];
936 	u_int32_t       ifar_count;
937 	user32_addr_t ifar_uuids;
938 };
939 struct if_agentidsreq64 {
940 	char            ifar_name[IFNAMSIZ];
941 	u_int32_t       ifar_count;
942 	user64_addr_t ifar_uuids __attribute__((aligned(8)));
943 };
944 #endif /* BSD_KERNEL_PRIVATE */
945 
946 /*
947  * Structure for SIOCGIFNEXUS
948  */
949 struct if_nexusreq {
950 	char            ifnr_name[IFNAMSIZ];    /* interface name */
951 	uint64_t        ifnr_flags;             /* unused, must be zero */
952 	uuid_t          ifnr_netif;             /* netif nexus instance UUID */
953 	uuid_t          ifnr_flowswitch;        /* flowswitch nexus UUID */
954 	uint64_t        ifnr_reserved[5];
955 };
956 
957 #define DLIL_MODIDLEN   20      /* same as IFNET_MODIDLEN */
958 #define DLIL_MODARGLEN  12      /* same as IFNET_MODARGLEN */
959 
960 /*
961  * DLIL KEV_DL_ISSUES event structure
962  */
963 struct kev_dl_issues {
964 	struct net_event_data   link_data;
965 	u_int8_t                modid[DLIL_MODIDLEN];
966 	u_int64_t               timestamp;
967 	u_int8_t                info[DLIL_MODARGLEN];
968 };
969 
970 /*
971  * DLIL KEV_DL_RRC_STATE_CHANGED structure
972  */
973 struct kev_dl_rrc_state {
974 	struct net_event_data   link_data;
975 	u_int32_t               rrc_state;
976 };
977 
978 /*
979  * KEV_DL_LOW_POWER_MODE_CHANGED
980  */
981 struct kev_dl_low_power_mode {
982 	struct net_event_data   link_data;
983 	int                     low_power_event;
984 };
985 
986 /*
987  * Length of network signature/fingerprint blob.
988  */
989 #define IFNET_SIGNATURELEN      20
990 
991 /*
992  * Structure for SIOC[S/G]IFNETSIGNATURE
993  */
994 struct if_nsreq {
995 	char            ifnsr_name[IFNAMSIZ];
996 	u_int8_t        ifnsr_family;   /* address family */
997 	u_int8_t        ifnsr_len;      /* data length */
998 	u_int16_t       ifnsr_flags;    /* for future */
999 	u_int8_t        ifnsr_data[IFNET_SIGNATURELEN];
1000 };
1001 
1002 /* Structure for SIOCSIFNETWORKID */
1003 struct if_netidreq {
1004 	char            ifnetid_name[IFNAMSIZ];
1005 	u_int8_t        ifnetid_len;
1006 	u_int8_t        ifnetid[IFNET_NETWORK_ID_LEN];
1007 };
1008 
1009 #define NAT64_PREFIX_LEN_32     4
1010 #define NAT64_PREFIX_LEN_40     5
1011 #define NAT64_PREFIX_LEN_48     6
1012 #define NAT64_PREFIX_LEN_56     7
1013 #define NAT64_PREFIX_LEN_64     8
1014 #define NAT64_PREFIX_LEN_96     12
1015 #define NAT64_PREFIX_LEN_MAX    NAT64_PREFIX_LEN_96
1016 
1017 #define NAT64_MAX_NUM_PREFIXES  4
1018 
1019 struct ipv6_prefix {
1020 	struct in6_addr ipv6_prefix;
1021 	uint32_t        prefix_len;
1022 };
1023 
1024 struct if_ipv6_address {
1025 	struct in6_addr v6_address;
1026 	uint32_t        v6_prefixlen;
1027 };
1028 
1029 /* Structure for SIOC[S/G]IFNAT64PREFIX */
1030 struct if_nat64req {
1031 	char                    ifnat64_name[IFNAMSIZ];
1032 	struct ipv6_prefix      ifnat64_prefixes[NAT64_MAX_NUM_PREFIXES];
1033 };
1034 
1035 /* Structure for SIOCGIFCLAT46ADDR */
1036 struct if_clat46req {
1037 	char                    ifclat46_name[IFNAMSIZ];
1038 	struct if_ipv6_address  ifclat46_addr;
1039 };
1040 
1041 /*
1042  * Structure for SIOC[S/G]IFORDER
1043  *
1044  * When setting, ifo_count is the number of u_int32_t interface indices
1045  * in the ifo_ordered_indices array.
1046  *
1047  * When getting, if ifo_count is 0, the length of the ordered list will
1048  * be returned. If the ifo_count is non-0, it is the number of u_int32_t
1049  * interface indices allocated. Upon return, ifo_count will contain the number
1050  * of indices copied into the array.
1051  */
1052 struct if_order {
1053 	u_int32_t                       ifo_count;
1054 	u_int32_t                       ifo_reserved;
1055 	mach_vm_address_t       ifo_ordered_indices; /* array of u_int32_t */
1056 };
1057 
1058 /*
1059  * Struct for traffic class to DSCP mapping
1060  */
1061 struct if_tdmreq {
1062 	char                            iftdm_name[IFNAMSIZ];
1063 	u_int32_t                       iftdm_len;      /* byte length of the table */
1064 	struct netsvctype_dscp_map      *iftdm_table;
1065 };
1066 
1067 #ifdef BSD_KERNEL_PRIVATE
1068 struct if_tdmreq32 {
1069 	char                    iftdm_name[IFNAMSIZ];
1070 	u_int32_t               iftdm_len;      /* byte length of the table */
1071 	user32_addr_t           iftdm_table;
1072 };
1073 
1074 struct if_tdmreq64 {
1075 	char                    iftdm_name[IFNAMSIZ];
1076 	u_int32_t               iftdm_len;      /* byte length of the table */
1077 	user64_addr_t           iftdm_table __attribute__((aligned(8)));
1078 };
1079 #endif
1080 
1081 /*
1082  * Structure for SIOCGIFPROTOLIST.
1083  */
1084 struct if_protolistreq {
1085 	char                    ifpl_name[IFNAMSIZ];
1086 	u_int32_t               ifpl_count;
1087 	u_int32_t               ifpl_reserved; /* must be zero */
1088 	u_int32_t               *ifpl_list;
1089 };
1090 
1091 #ifdef BSD_KERNEL_PRIVATE
1092 struct if_protolistreq32 {
1093 	char                    ifpl_name[IFNAMSIZ];
1094 	u_int32_t               ifpl_count;
1095 	u_int32_t               ifpl_reserved; /* must be zero */
1096 	user32_addr_t           ifpl_list;
1097 };
1098 
1099 struct if_protolistreq64 {
1100 	char                    ifpl_name[IFNAMSIZ];
1101 	u_int32_t               ifpl_count;
1102 	u_int32_t               ifpl_reserved; /* must be zero */
1103 	user64_addr_t           ifpl_list;
1104 };
1105 #endif /* BSD_KERNEL_PRIVATE */
1106 
1107 #endif /* PRIVATE */
1108 
1109 #ifdef KERNEL
1110 #ifdef MALLOC_DECLARE
1111 MALLOC_DECLARE(M_IFADDR);
1112 #endif
1113 #endif
1114 #endif /* DRIVERKIT */
1115 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
1116 
1117 #ifndef DRIVERKIT
1118 #ifndef KERNEL
1119 struct if_nameindex {
1120 	unsigned int     if_index;      /* 1, 2, ... */
1121 	char            *if_name;       /* null terminated name: "le0", ... */
1122 };
1123 
1124 __BEGIN_DECLS
1125 unsigned int     if_nametoindex(const char *);
1126 char            *if_indextoname(unsigned int, char *);
1127 struct           if_nameindex *if_nameindex(void);
1128 void             if_freenameindex(struct if_nameindex *);
1129 __END_DECLS
1130 #endif /* KERNEL */
1131 #endif /* DRIVERKIT */
1132 
1133 #ifdef KERNEL
1134 #include <net/kpi_interface.h>
1135 #endif
1136 
1137 #endif /* !_NET_IF_H_ */
1138