]> git.saurik.com Git - apple/xnu.git/blob - bsd/net/if_var.h
projects / apple / xnu.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
xnu-7195.101.1.tar.gz
[apple/xnu.git] / bsd / net / if_var.h
1 /*
2 * Copyright (c) 2000-2020 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 * From: @(#)if.h 8.1 (Berkeley) 6/10/93
61 * $FreeBSD: src/sys/net/if_var.h,v 1.18.2.7 2001/07/24 19:10:18 brooks Exp $
62 */
63
64 #ifndef _NET_IF_VAR_H_
65 #define _NET_IF_VAR_H_
66
67 #include <sys/appleapiopts.h>
68 #include <stdint.h>
69 #include <sys/types.h>
70 #include <sys/time.h>
71 #include <sys/queue.h> /* get TAILQ macros */
72 #ifdef KERNEL_PRIVATE
73 #include <kern/locks.h>
74 #endif /* KERNEL_PRIVATE */
75 #ifdef PRIVATE
76 #include <net/route.h>
77 #endif
78 #ifdef BSD_KERN_PRIVATE
79 #include <net/pktsched/pktsched.h>
80 #include <sys/eventhandler.h>
81 #endif
82
83 #ifdef KERNEL
84 #include <net/kpi_interface.h>
85 #endif /* KERNEL */
86
87 #ifdef __APPLE__
88 #define APPLE_IF_FAM_LOOPBACK 1
89 #define APPLE_IF_FAM_ETHERNET 2
90 #define APPLE_IF_FAM_SLIP 3
91 #define APPLE_IF_FAM_TUN 4
92 #define APPLE_IF_FAM_VLAN 5
93 #define APPLE_IF_FAM_PPP 6
94 #define APPLE_IF_FAM_PVC 7
95 #define APPLE_IF_FAM_DISC 8
96 #define APPLE_IF_FAM_MDECAP 9
97 #define APPLE_IF_FAM_GIF 10
98 #define APPLE_IF_FAM_FAITH 11 /* deprecated */
99 #define APPLE_IF_FAM_STF 12
100 #define APPLE_IF_FAM_FIREWIRE 13
101 #define APPLE_IF_FAM_BOND 14
102 #define APPLE_IF_FAM_CELLULAR 15
103 #define APPLE_IF_FAM_6LOWPAN 16
104 #define APPLE_IF_FAM_UTUN 17
105 #define APPLE_IF_FAM_IPSEC 18
106 #endif /* __APPLE__ */
107
108 /*
109 * 72 was chosen below because it is the size of a TCP/IP
110 * header (40) + the minimum mss (32).
111 */
112 #define IF_MINMTU 72
113 #define IF_MAXMTU 65535
114
115 /*
116 * Structures defining a network interface, providing a packet
117 * transport mechanism (ala level 0 of the PUP protocols).
118 *
119 * Each interface accepts output datagrams of a specified maximum
120 * length, and provides higher level routines with input datagrams
121 * received from its medium.
122 *
123 * Output occurs when the routine if_output is called, with three parameters:
124 * (*ifp->if_output)(ifp, m, dst, rt)
125 * Here m is the mbuf chain to be sent and dst is the destination address.
126 * The output routine encapsulates the supplied datagram if necessary,
127 * and then transmits it on its medium.
128 *
129 * On input, each interface unwraps the data received by it, and either
130 * places it on the input queue of a internetwork datagram routine
131 * and posts the associated software interrupt, or passes the datagram to a raw
132 * packet input routine.
133 *
134 * Routines exist for locating interfaces by their addresses
135 * or for locating a interface on a certain network, as well as more general
136 * routing and gateway routines maintaining information used to locate
137 * interfaces. These routines live in the files if.c and route.c
138 */
139
140 #define IFNAMSIZ 16
141
142 /* This belongs up in socket.h or socketvar.h, depending on how far the
143 * event bubbles up.
144 */
145
146 struct net_event_data {
147 u_int32_t if_family;
148 u_int32_t if_unit;
149 char if_name[IFNAMSIZ];
150 };
151
152 #if defined(__LP64__)
153 #include <sys/_types/_timeval32.h>
154 #define IF_DATA_TIMEVAL timeval32
155 #else
156 #define IF_DATA_TIMEVAL timeval
157 #endif
158
159 #pragma pack(4)
160
161 /*
162 * Structure describing information about an interface
163 * which may be of interest to management entities.
164 */
165 struct if_data {
166 /* generic interface information */
167 u_char ifi_type; /* ethernet, tokenring, etc */
168 u_char ifi_typelen; /* Length of frame type id */
169 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */
170 u_char ifi_addrlen; /* media address length */
171 u_char ifi_hdrlen; /* media header length */
172 u_char ifi_recvquota; /* polling quota for receive intrs */
173 u_char ifi_xmitquota; /* polling quota for xmit intrs */
174 u_char ifi_unused1; /* for future use */
175 u_int32_t ifi_mtu; /* maximum transmission unit */
176 u_int32_t ifi_metric; /* routing metric (external only) */
177 u_int32_t ifi_baudrate; /* linespeed */
178 /* volatile statistics */
179 u_int32_t ifi_ipackets; /* packets received on interface */
180 u_int32_t ifi_ierrors; /* input errors on interface */
181 u_int32_t ifi_opackets; /* packets sent on interface */
182 u_int32_t ifi_oerrors; /* output errors on interface */
183 u_int32_t ifi_collisions; /* collisions on csma interfaces */
184 u_int32_t ifi_ibytes; /* total number of octets received */
185 u_int32_t ifi_obytes; /* total number of octets sent */
186 u_int32_t ifi_imcasts; /* packets received via multicast */
187 u_int32_t ifi_omcasts; /* packets sent via multicast */
188 u_int32_t ifi_iqdrops; /* dropped on input, this interface */
189 u_int32_t ifi_noproto; /* destined for unsupported protocol */
190 u_int32_t ifi_recvtiming; /* usec spent receiving when timing */
191 u_int32_t ifi_xmittiming; /* usec spent xmitting when timing */
192 struct IF_DATA_TIMEVAL ifi_lastchange; /* time of last administrative change */
193 u_int32_t ifi_unused2; /* used to be the default_proto */
194 u_int32_t ifi_hwassist; /* HW offload capabilities */
195 u_int32_t ifi_reserved1; /* for future use */
196 u_int32_t ifi_reserved2; /* for future use */
197 };
198
199 /*
200 * Structure describing information about an interface
201 * which may be of interest to management entities.
202 */
203 struct if_data64 {
204 /* generic interface information */
205 u_char ifi_type; /* ethernet, tokenring, etc */
206 u_char ifi_typelen; /* Length of frame type id */
207 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */
208 u_char ifi_addrlen; /* media address length */
209 u_char ifi_hdrlen; /* media header length */
210 u_char ifi_recvquota; /* polling quota for receive intrs */
211 u_char ifi_xmitquota; /* polling quota for xmit intrs */
212 u_char ifi_unused1; /* for future use */
213 u_int32_t ifi_mtu; /* maximum transmission unit */
214 u_int32_t ifi_metric; /* routing metric (external only) */
215 u_int64_t ifi_baudrate; /* linespeed */
216 /* volatile statistics */
217 u_int64_t ifi_ipackets; /* packets received on interface */
218 u_int64_t ifi_ierrors; /* input errors on interface */
219 u_int64_t ifi_opackets; /* packets sent on interface */
220 u_int64_t ifi_oerrors; /* output errors on interface */
221 u_int64_t ifi_collisions; /* collisions on csma interfaces */
222 u_int64_t ifi_ibytes; /* total number of octets received */
223 u_int64_t ifi_obytes; /* total number of octets sent */
224 u_int64_t ifi_imcasts; /* packets received via multicast */
225 u_int64_t ifi_omcasts; /* packets sent via multicast */
226 u_int64_t ifi_iqdrops; /* dropped on input, this interface */
227 u_int64_t ifi_noproto; /* destined for unsupported protocol */
228 u_int32_t ifi_recvtiming; /* usec spent receiving when timing */
229 u_int32_t ifi_xmittiming; /* usec spent xmitting when timing */
230 struct IF_DATA_TIMEVAL ifi_lastchange; /* time of last administrative change */
231 };
232
233 #ifdef PRIVATE
234 struct if_traffic_class {
235 u_int64_t ifi_ibepackets; /* TC_BE packets received on interface */
236 u_int64_t ifi_ibebytes; /* TC_BE bytes received on interface */
237 u_int64_t ifi_obepackets; /* TC_BE packet sent on interface */
238 u_int64_t ifi_obebytes; /* TC_BE bytes sent on interface */
239 u_int64_t ifi_ibkpackets; /* TC_BK packets received on interface */
240 u_int64_t ifi_ibkbytes; /* TC_BK bytes received on interface */
241 u_int64_t ifi_obkpackets; /* TC_BK packet sent on interface */
242 u_int64_t ifi_obkbytes; /* TC_BK bytes sent on interface */
243 u_int64_t ifi_ivipackets; /* TC_VI packets received on interface */
244 u_int64_t ifi_ivibytes; /* TC_VI bytes received on interface */
245 u_int64_t ifi_ovipackets; /* TC_VI packets sent on interface */
246 u_int64_t ifi_ovibytes; /* TC_VI bytes sent on interface */
247 u_int64_t ifi_ivopackets; /* TC_VO packets received on interface */
248 u_int64_t ifi_ivobytes; /* TC_VO bytes received on interface */
249 u_int64_t ifi_ovopackets; /* TC_VO packets sent on interface */
250 u_int64_t ifi_ovobytes; /* TC_VO bytes sent on interface */
251 u_int64_t ifi_ipvpackets; /* TC priv packets received on interface */
252 u_int64_t ifi_ipvbytes; /* TC priv bytes received on interface */
253 u_int64_t ifi_opvpackets; /* TC priv packets sent on interface */
254 u_int64_t ifi_opvbytes; /* TC priv bytes sent on interface */
255 };
256
257 struct if_data_extended {
258 u_int64_t ifi_alignerrs; /* unaligned (32-bit) input pkts */
259 u_int64_t ifi_dt_bytes; /* Data threshold counter */
260 u_int64_t ifi_fpackets; /* forwarded packets on interface */
261 u_int64_t ifi_fbytes; /* forwarded bytes on interface */
262 u_int64_t reserved[12]; /* for future */
263 };
264
265 struct if_packet_stats {
266 /* TCP */
267 u_int64_t ifi_tcp_badformat;
268 u_int64_t ifi_tcp_unspecv6;
269 u_int64_t ifi_tcp_synfin;
270 u_int64_t ifi_tcp_badformatipsec;
271 u_int64_t ifi_tcp_noconnnolist;
272 u_int64_t ifi_tcp_noconnlist;
273 u_int64_t ifi_tcp_listbadsyn;
274 u_int64_t ifi_tcp_icmp6unreach;
275 u_int64_t ifi_tcp_deprecate6;
276 u_int64_t ifi_tcp_rstinsynrcv;
277 u_int64_t ifi_tcp_ooopacket;
278 u_int64_t ifi_tcp_dospacket;
279 u_int64_t ifi_tcp_cleanup;
280 u_int64_t ifi_tcp_synwindow;
281 u_int64_t reserved[6];
282 /* UDP */
283 u_int64_t ifi_udp_port_unreach;
284 u_int64_t ifi_udp_faithprefix;
285 u_int64_t ifi_udp_port0;
286 u_int64_t ifi_udp_badlength;
287 u_int64_t ifi_udp_badchksum;
288 u_int64_t ifi_udp_badmcast;
289 u_int64_t ifi_udp_cleanup;
290 u_int64_t ifi_udp_badipsec;
291 u_int64_t _reserved[4];
292 };
293
294 struct if_description {
295 u_int32_t ifd_maxlen; /* must be IF_DESCSIZE */
296 u_int32_t ifd_len; /* actual ifd_desc length */
297 u_int8_t *ifd_desc; /* ptr to desc buffer */
298 };
299
300 struct if_bandwidths {
301 uint64_t eff_bw; /* effective bandwidth */
302 uint64_t max_bw; /* maximum theoretical bandwidth */
303 };
304
305 struct if_latencies {
306 u_int64_t eff_lt; /* effective latency */
307 u_int64_t max_lt; /* maximum theoretical latency */
308 };
309
310 #define IF_NETEM_PARAMS_PSCALE 100000
311 struct if_netem_params {
312 /* bandwidth limit */
313 uint64_t ifnetem_bandwidth_bps;
314
315 /* latency (normal distribution with jitter as stdev) */
316 uint32_t ifnetem_latency_ms;
317 uint32_t ifnetem_jitter_ms;
318
319 /*
320 * NetEm probabilistic model parameters has a scaling factor of 100,000
321 * for 5 digits precision. For instance, probability 12.345% is
322 * expressed as uint32_t fixed point 12345 in ifnet_*_p variable below.
323 */
324 /* random packet corruption */
325 uint32_t ifnetem_corruption_p;
326
327 /* random packet duplication */
328 uint32_t ifnetem_duplication_p;
329
330 /* 4 state Markov loss model */
331 uint32_t ifnetem_loss_p_gr_gl; /* P( gap_loss | gap_rx ) */
332 uint32_t ifnetem_loss_p_gr_bl; /* P( burst_loss | gap_rx ) */
333 uint32_t ifnetem_loss_p_bl_br; /* P( burst_rx | burst_loss ) */
334 uint32_t ifnetem_loss_p_bl_gr; /* P( gap_rx | burst_loss ) */
335 uint32_t ifnetem_loss_p_br_bl; /* P( burst_loss | burst_rx ) */
336
337 /* random packet reordering */
338 uint32_t ifnetem_reordering_p;
339 };
340
341 struct if_rxpoll_stats {
342 u_int32_t ifi_poll_off_req; /* total # of POLL_OFF reqs */
343 u_int32_t ifi_poll_off_err; /* total # of POLL_OFF errors */
344 u_int32_t ifi_poll_on_req; /* total # of POLL_ON reqs */
345 u_int32_t ifi_poll_on_err; /* total # of POLL_ON errors */
346
347 u_int32_t ifi_poll_wakeups_avg; /* avg # of wakeup reqs */
348 u_int32_t ifi_poll_wakeups_lowat; /* wakeups low watermark */
349 u_int32_t ifi_poll_wakeups_hiwat; /* wakeups high watermark */
350
351 u_int64_t ifi_poll_packets; /* total # of polled packets */
352 u_int32_t ifi_poll_packets_avg; /* average polled packets */
353 u_int32_t ifi_poll_packets_min; /* smallest polled packets */
354 u_int32_t ifi_poll_packets_max; /* largest polled packets */
355 u_int32_t ifi_poll_packets_lowat; /* packets low watermark */
356 u_int32_t ifi_poll_packets_hiwat; /* packets high watermark */
357
358 u_int64_t ifi_poll_bytes; /* total # of polled bytes */
359 u_int32_t ifi_poll_bytes_avg; /* average polled bytes */
360 u_int32_t ifi_poll_bytes_min; /* smallest polled bytes */
361 u_int32_t ifi_poll_bytes_max; /* largest polled bytes */
362 u_int32_t ifi_poll_bytes_lowat; /* bytes low watermark */
363 u_int32_t ifi_poll_bytes_hiwat; /* bytes high watermark */
364
365 u_int32_t ifi_poll_packets_limit; /* max packets per poll call */
366 u_int64_t ifi_poll_interval_time; /* poll interval (nsec) */
367 };
368
369 struct if_netif_stats {
370 u_int64_t ifn_rx_mit_interval; /* rx mitigation ival (nsec) */
371 u_int32_t ifn_rx_mit_mode; /* 0: static, 1: dynamic */
372 u_int32_t ifn_rx_mit_packets_avg; /* average # of packets */
373 u_int32_t ifn_rx_mit_packets_min; /* smallest # of packets */
374 u_int32_t ifn_rx_mit_packets_max; /* largest # of packets */
375 u_int32_t ifn_rx_mit_bytes_avg; /* average # of bytes */
376 u_int32_t ifn_rx_mit_bytes_min; /* smallest # of bytes */
377 u_int32_t ifn_rx_mit_bytes_max; /* largest # of bytes */
378 u_int32_t ifn_rx_mit_cfg_idx; /* current config selector */
379 u_int32_t ifn_rx_mit_cfg_packets_lowat; /* pkts low watermark */
380 u_int32_t ifn_rx_mit_cfg_packets_hiwat; /* pkts high watermark */
381 u_int32_t ifn_rx_mit_cfg_bytes_lowat; /* bytes low watermark */
382 u_int32_t ifn_rx_mit_cfg_bytes_hiwat; /* bytes high watermark */
383 u_int32_t ifn_rx_mit_cfg_interval; /* delay interval (nsec) */
384 };
385
386 struct if_tcp_ecn_perf_stat {
387 u_int64_t total_txpkts;
388 u_int64_t total_rxmitpkts;
389 u_int64_t total_rxpkts;
390 u_int64_t total_oopkts;
391 u_int64_t total_reorderpkts;
392 u_int64_t rtt_avg;
393 u_int64_t rtt_var;
394 u_int64_t sack_episodes;
395 u_int64_t rxmit_drop;
396 u_int64_t rst_drop;
397 u_int64_t oo_percent;
398 u_int64_t reorder_percent;
399 u_int64_t rxmit_percent;
400 };
401
402 struct if_tcp_ecn_stat {
403 u_int64_t timestamp;
404 u_int64_t ecn_client_setup;
405 u_int64_t ecn_server_setup;
406 u_int64_t ecn_client_success;
407 u_int64_t ecn_server_success;
408 u_int64_t ecn_peer_nosupport;
409 u_int64_t ecn_syn_lost;
410 u_int64_t ecn_synack_lost;
411 u_int64_t ecn_recv_ce;
412 u_int64_t ecn_recv_ece;
413 u_int64_t ecn_conn_recv_ce;
414 u_int64_t ecn_conn_recv_ece;
415 u_int64_t ecn_conn_plnoce;
416 u_int64_t ecn_conn_plce;
417 u_int64_t ecn_conn_noplce;
418 u_int64_t ecn_fallback_synloss;
419 u_int64_t ecn_fallback_reorder;
420 u_int64_t ecn_fallback_ce;
421 u_int64_t ecn_off_conn;
422 u_int64_t ecn_total_conn;
423 u_int64_t ecn_fallback_droprst;
424 u_int64_t ecn_fallback_droprxmt;
425 u_int64_t ecn_fallback_synrst;
426 struct if_tcp_ecn_perf_stat ecn_on;
427 struct if_tcp_ecn_perf_stat ecn_off;
428 };
429
430 struct if_lim_perf_stat {
431 u_int64_t lim_dl_max_bandwidth; /* bits per second */
432 u_int64_t lim_ul_max_bandwidth; /* bits per second */
433 u_int64_t lim_total_txpkts; /* Total transmit packets, count */
434 u_int64_t lim_total_rxpkts; /* Total receive packets, count */
435 u_int64_t lim_total_retxpkts; /* Total retransmit packets */
436 u_int64_t lim_packet_loss_percent; /* Packet loss rate */
437 u_int64_t lim_total_oopkts; /* Total out-of-order packets */
438 u_int64_t lim_packet_ooo_percent; /* Out-of-order packet rate */
439 u_int64_t lim_rtt_variance; /* RTT variance, milliseconds */
440 u_int64_t lim_rtt_average; /* RTT average, milliseconds */
441 u_int64_t lim_rtt_min; /* RTT minimum, milliseconds */
442 u_int64_t lim_conn_timeouts; /* connection timeouts */
443 u_int64_t lim_conn_attempts; /* connection attempts */
444 u_int64_t lim_conn_timeout_percent; /* Rate of connection timeouts */
445 u_int64_t lim_bk_txpkts; /* Transmit packets with BK service class, that use delay based algorithms */
446 u_int64_t lim_dl_detected:1, /* Low internet */
447 lim_ul_detected:1;
448 };
449
450 #define IF_VAR_H_HAS_IFNET_STATS_PER_FLOW 1
451 struct ifnet_stats_per_flow {
452 u_int64_t bk_txpackets;
453 u_int64_t txpackets;
454 u_int64_t rxpackets;
455 u_int32_t txretransmitbytes;
456 u_int32_t rxoutoforderbytes;
457 u_int32_t rxmitpkts;
458 u_int32_t rcvoopack;
459 u_int32_t pawsdrop;
460 u_int32_t sack_recovery_episodes;
461 u_int32_t reordered_pkts;
462 u_int32_t dsack_sent;
463 u_int32_t dsack_recvd;
464 u_int32_t srtt;
465 u_int32_t rttupdated;
466 u_int32_t rttvar;
467 u_int32_t rttmin;
468 u_int32_t bw_sndbw_max;
469 u_int32_t bw_rcvbw_max;
470 u_int32_t ecn_recv_ece;
471 u_int32_t ecn_recv_ce;
472 u_int16_t ecn_flags;
473 u_int16_t ipv4:1,
474 local:1,
475 connreset:1,
476 conntimeout:1,
477 rxmit_drop:1,
478 ecn_fallback_synloss:1,
479 ecn_fallback_droprst:1,
480 ecn_fallback_droprxmt:1,
481 ecn_fallback_ce:1,
482 ecn_fallback_reorder:1;
483 };
484
485 /*
486 * Interface link status report -- includes statistics related to
487 * the link layer technology sent by the driver. The driver will monitor
488 * these statistics over an interval (3-4 secs) and will generate a report
489 * to the network stack. This will give first-hand information about the
490 * status of the first hop of the network path. The version and
491 * length values should be correct for the data to be processed correctly.
492 * The definitions are different for different kind of interfaces like
493 * Wifi, Cellular etc,.
494 */
495 #define IF_CELLULAR_STATUS_REPORT_VERSION_1 1
496 #define IF_WIFI_STATUS_REPORT_VERSION_1 1
497 #define IF_CELLULAR_STATUS_REPORT_CURRENT_VERSION \
498 IF_CELLULAR_STATUS_REPORT_VERSION_1
499 #define IF_WIFI_STATUS_REPORT_CURRENT_VERSION IF_WIFI_STATUS_REPORT_VERSION_1
500 /*
501 * For cellular interface --
502 * There is no way to share common headers between the Baseband and
503 * the kernel. Any changes to this structure will need to be communicated
504 * to the Baseband team. It is better to use reserved space instead of
505 * changing the size or existing fields in the structure.
506 */
507 struct if_cellular_status_v1 {
508 u_int32_t valid_bitmask; /* indicates which fields are valid */
509 #define IF_CELL_LINK_QUALITY_METRIC_VALID 0x1
510 #define IF_CELL_UL_EFFECTIVE_BANDWIDTH_VALID 0x2
511 #define IF_CELL_UL_MAX_BANDWIDTH_VALID 0x4
512 #define IF_CELL_UL_MIN_LATENCY_VALID 0x8
513 #define IF_CELL_UL_EFFECTIVE_LATENCY_VALID 0x10
514 #define IF_CELL_UL_MAX_LATENCY_VALID 0x20
515 #define IF_CELL_UL_RETXT_LEVEL_VALID 0x40
516 #define IF_CELL_UL_BYTES_LOST_VALID 0x80
517 #define IF_CELL_UL_MIN_QUEUE_SIZE_VALID 0x100
518 #define IF_CELL_UL_AVG_QUEUE_SIZE_VALID 0x200
519 #define IF_CELL_UL_MAX_QUEUE_SIZE_VALID 0x400
520 #define IF_CELL_DL_EFFECTIVE_BANDWIDTH_VALID 0x800
521 #define IF_CELL_DL_MAX_BANDWIDTH_VALID 0x1000
522 #define IF_CELL_CONFIG_INACTIVITY_TIME_VALID 0x2000
523 #define IF_CELL_CONFIG_BACKOFF_TIME_VALID 0x4000
524 #define IF_CELL_UL_MSS_RECOMMENDED_VALID 0x8000
525
526 u_int32_t link_quality_metric;
527 u_int32_t ul_effective_bandwidth; /* Measured uplink bandwidth based on current activity (bps) */
528 u_int32_t ul_max_bandwidth; /* Maximum supported uplink bandwidth (bps) */
529 u_int32_t ul_min_latency; /* min expected uplink latency for first hop (ms) */
530 u_int32_t ul_effective_latency; /* current expected uplink latency for first hop (ms) */
531 u_int32_t ul_max_latency; /* max expected uplink latency first hop (ms) */
532 u_int32_t ul_retxt_level; /* Retransmission metric */
533 #define IF_CELL_UL_RETXT_LEVEL_NONE 1
534 #define IF_CELL_UL_RETXT_LEVEL_LOW 2
535 #define IF_CELL_UL_RETXT_LEVEL_MEDIUM 3
536 #define IF_CELL_UL_RETXT_LEVEL_HIGH 4
537 u_int32_t ul_bytes_lost; /* % of total bytes lost on uplink in Q10 format */
538 u_int32_t ul_min_queue_size; /* minimum bytes in queue */
539 u_int32_t ul_avg_queue_size; /* average bytes in queue */
540 u_int32_t ul_max_queue_size; /* maximum bytes in queue */
541 u_int32_t dl_effective_bandwidth; /* Measured downlink bandwidth based on current activity (bps) */
542 u_int32_t dl_max_bandwidth; /* Maximum supported downlink bandwidth (bps) */
543 u_int32_t config_inactivity_time; /* ms */
544 u_int32_t config_backoff_time; /* new connections backoff time in ms */
545 #define IF_CELL_UL_MSS_RECOMMENDED_NONE 0x0 /* Use default */
546 #define IF_CELL_UL_MSS_RECOMMENDED_MEDIUM 0x1 /* 1200 byte MSS */
547 #define IF_CELL_UL_MSS_RECOMMENDED_LOW 0x2 /* 512 byte MSS */
548 u_int16_t mss_recommended;
549 u_int16_t reserved_1;
550 u_int32_t reserved_2;
551 u_int64_t reserved_3;
552 u_int64_t reserved_4;
553 u_int64_t reserved_5;
554 u_int64_t reserved_6;
555 } __attribute__((packed));
556
557 struct if_cellular_status {
558 union {
559 struct if_cellular_status_v1 if_status_v1;
560 } if_cell_u;
561 };
562
563 /*
564 * These statistics will be provided by the Wifi driver periodically.
565 * After sending each report, the driver should start computing again
566 * for the next report duration so that the values represent the link
567 * status for one report duration.
568 */
569
570 struct if_wifi_status_v1 {
571 u_int32_t valid_bitmask;
572 #define IF_WIFI_LINK_QUALITY_METRIC_VALID 0x1
573 #define IF_WIFI_UL_EFFECTIVE_BANDWIDTH_VALID 0x2
574 #define IF_WIFI_UL_MAX_BANDWIDTH_VALID 0x4
575 #define IF_WIFI_UL_MIN_LATENCY_VALID 0x8
576 #define IF_WIFI_UL_EFFECTIVE_LATENCY_VALID 0x10
577 #define IF_WIFI_UL_MAX_LATENCY_VALID 0x20
578 #define IF_WIFI_UL_RETXT_LEVEL_VALID 0x40
579 #define IF_WIFI_UL_ERROR_RATE_VALID 0x80
580 #define IF_WIFI_UL_BYTES_LOST_VALID 0x100
581 #define IF_WIFI_DL_EFFECTIVE_BANDWIDTH_VALID 0x200
582 #define IF_WIFI_DL_MAX_BANDWIDTH_VALID 0x400
583 #define IF_WIFI_DL_MIN_LATENCY_VALID 0x800
584 #define IF_WIFI_DL_EFFECTIVE_LATENCY_VALID 0x1000
585 #define IF_WIFI_DL_MAX_LATENCY_VALID 0x2000
586 #define IF_WIFI_DL_ERROR_RATE_VALID 0x4000
587 #define IF_WIFI_CONFIG_FREQUENCY_VALID 0x8000
588 #define IF_WIFI_CONFIG_MULTICAST_RATE_VALID 0x10000
589 #define IF_WIFI_CONFIG_SCAN_COUNT_VALID 0x20000
590 #define IF_WIFI_CONFIG_SCAN_DURATION_VALID 0x40000
591 u_int32_t link_quality_metric; /* link quality metric */
592 u_int32_t ul_effective_bandwidth; /* Measured uplink bandwidth based on current activity (bps) */
593 u_int32_t ul_max_bandwidth; /* Maximum supported uplink bandwidth (bps) */
594 u_int32_t ul_min_latency; /* min expected uplink latency for first hop (ms) */
595 u_int32_t ul_effective_latency; /* current expected uplink latency for first hop (ms) */
596 u_int32_t ul_max_latency; /* max expected uplink latency for first hop (ms) */
597 u_int32_t ul_retxt_level; /* Retransmission metric */
598 #define IF_WIFI_UL_RETXT_LEVEL_NONE 1
599 #define IF_WIFI_UL_RETXT_LEVEL_LOW 2
600 #define IF_WIFI_UL_RETXT_LEVEL_MEDIUM 3
601 #define IF_WIFI_UL_RETXT_LEVEL_HIGH 4
602 u_int32_t ul_bytes_lost; /* % of total bytes lost on uplink in Q10 format */
603 u_int32_t ul_error_rate; /* % of bytes dropped on uplink after many retransmissions in Q10 format */
604 u_int32_t dl_effective_bandwidth; /* Measured downlink bandwidth based on current activity (bps) */
605 u_int32_t dl_max_bandwidth; /* Maximum supported downlink bandwidth (bps) */
606 /*
607 * The download latency values indicate the time AP may have to wait for the
608 * driver to receive the packet. These values give the range of expected latency
609 * mainly due to co-existence events and channel hopping where the interface
610 * becomes unavailable.
611 */
612 u_int32_t dl_min_latency; /* min expected latency for first hop in ms */
613 u_int32_t dl_effective_latency; /* current expected latency for first hop in ms */
614 u_int32_t dl_max_latency; /* max expected latency for first hop in ms */
615 u_int32_t dl_error_rate; /* % of CRC or other errors in Q10 format */
616 u_int32_t config_frequency; /* 2.4 or 5 GHz */
617 #define IF_WIFI_CONFIG_FREQUENCY_2_4_GHZ 1
618 #define IF_WIFI_CONFIG_FREQUENCY_5_0_GHZ 2
619 u_int32_t config_multicast_rate; /* bps */
620 u_int32_t scan_count; /* scan count during the previous period */
621 u_int32_t scan_duration; /* scan duration in ms */
622 u_int64_t reserved_1;
623 u_int64_t reserved_2;
624 u_int64_t reserved_3;
625 u_int64_t reserved_4;
626 } __attribute__((packed));
627
628 struct if_wifi_status {
629 union {
630 struct if_wifi_status_v1 if_status_v1;
631 } if_wifi_u;
632 };
633
634 struct if_link_status {
635 u_int32_t ifsr_version; /* version of this report */
636 u_int32_t ifsr_len; /* length of the following struct */
637 union {
638 struct if_cellular_status ifsr_cell;
639 struct if_wifi_status ifsr_wifi;
640 } ifsr_u;
641 };
642
643 struct if_interface_state {
644 /*
645 * The bitmask tells which of the fields
646 * to consider:
647 * - When setting, to control which fields
648 * are being modified;
649 * - When getting, it tells which fields are set.
650 */
651 u_int8_t valid_bitmask;
652 #define IF_INTERFACE_STATE_RRC_STATE_VALID 0x1
653 #define IF_INTERFACE_STATE_LQM_STATE_VALID 0x2
654 #define IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID 0x4
655
656 /*
657 * Valid only for cellular interface
658 */
659 u_int8_t rrc_state;
660 #define IF_INTERFACE_STATE_RRC_STATE_IDLE 0x0
661 #define IF_INTERFACE_STATE_RRC_STATE_CONNECTED 0x1
662
663 /*
664 * Values normalized to the edge of the following values
665 * that are defined on <net/if.h>:
666 * IFNET_LQM_THRESH_BAD
667 * IFNET_LQM_THRESH_POOR
668 * IFNET_LQM_THRESH_GOOD
669 */
670 int8_t lqm_state;
671
672 /*
673 * Indicate if the underlying link is currently
674 * available
675 */
676 u_int8_t interface_availability;
677 #define IF_INTERFACE_STATE_INTERFACE_AVAILABLE 0x0
678 #define IF_INTERFACE_STATE_INTERFACE_UNAVAILABLE 0x1
679 };
680
681 struct chain_len_stats {
682 uint64_t cls_one;
683 uint64_t cls_two;
684 uint64_t cls_three;
685 uint64_t cls_four;
686 uint64_t cls_five_or_more;
687 } __attribute__((__aligned__(sizeof(uint64_t))));
688
689 /*
690 * This structure is used to define the parameters for advisory notifications
691 * on an interface.
692 */
693 #pragma pack(push, 1)
694 struct ifnet_interface_advisory {
695 /* The current structure version */
696 uint8_t version;
697 #define IF_INTERFACE_ADVISORY_VERSION_1 0x1
698 #define IF_INTERFACE_ADVISORY_VERSION_CURRENT IF_INTERFACE_ADVISORY_VERSION_1
699 /* Specifies if the advisory is for transmit or receive path */
700 uint8_t direction;
701 #define IF_INTERFACE_ADVISORY_DIRECTION_TX 0x1
702 #define IF_INTERFACE_ADVISORY_DIRECTION_RX 0x2
703 /* reserved for future use */
704 uint16_t _reserved;
705 /*
706 * suggestion for data rate change to keep the latency low.
707 * unit: bits per second (bps)
708 * NOTE: if the interface cannot provide suggestions in terms of bps,
709 * it should use the following values:
710 * INT32_MAX : ramp up
711 * INT32_MIN : ramp down
712 * 0 : neutral
713 */
714 #define IF_INTERFACE_ADVISORY_RATE_SUGGESTION_RAMP_UP INT32_MAX
715 #define IF_INTERFACE_ADVISORY_RATE_SUGGESTION_RAMP_DOWN INT32_MIN
716 #define IF_INTERFACE_ADVISORY_RATE_SUGGESTION_RAMP_NEUTRAL 0
717 int32_t rate_trend_suggestion;
718 /*
719 * Time of the issue of advisory.
720 * Timestamp should be in the host domain.
721 * unit: mach absolute time
722 */
723 uint64_t timestamp;
724 /*
725 * Maximum theoretical bandwidth of the interface.
726 * unit: bits per second (bps)
727 */
728 uint64_t max_bandwidth;
729 /*
730 * Total bytes sent or received on the interface.
731 * wrap around possible and the application should account for that.
732 * unit: byte
733 */
734 uint64_t total_byte_count;
735 /*
736 * average throughput observed at the driver stack.
737 * unit: bits per second (bps)
738 */
739 uint64_t average_throughput;
740 /*
741 * flushable queue size at the driver.
742 * should be set to UINT32_MAX if not available.
743 * unit: byte
744 */
745 uint32_t flushable_queue_size;
746 /*
747 * non flushable queue size at the driver.
748 * should be set to UINT32_MAX if not available.
749 * unit: byte
750 */
751 uint32_t non_flushable_queue_size;
752 /*
753 * average delay observed at the interface.
754 * unit: milliseconds (ms)
755 */
756 uint32_t average_delay;
757 } __attribute__((aligned(sizeof(uint64_t))));
758 #pragma pack(pop)
759
760 #endif /* PRIVATE */
761
762 #pragma pack()
763
764 /*
765 * Structure defining a queue for a network interface.
766 */
767 struct ifqueue {
768 void *ifq_head;
769 void *ifq_tail;
770 int ifq_len;
771 int ifq_maxlen;
772 int ifq_drops;
773 };
774
775 #ifdef BSD_KERNEL_PRIVATE
776 #define IFNETS_MAX 64
777
778 /*
779 * Internal storage of if_data. This is bound to change. Various places in the
780 * stack will translate this data structure in to the externally visible
781 * if_data structure above. Note that during interface attach time, the
782 * embedded if_data structure in ifnet is cleared, with the exception of
783 * some non-statistics related fields.
784 */
785 struct if_data_internal {
786 /* generic interface information */
787 u_char ifi_type; /* ethernet, tokenring, etc */
788 u_char ifi_typelen; /* Length of frame type id */
789 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */
790 u_char ifi_addrlen; /* media address length */
791 u_char ifi_hdrlen; /* media header length */
792 u_char ifi_recvquota; /* polling quota for receive intrs */
793 u_char ifi_xmitquota; /* polling quota for xmit intrs */
794 u_char ifi_unused1; /* for future use */
795 u_int32_t ifi_mtu; /* maximum transmission unit */
796 u_int32_t ifi_metric; /* routing metric (external only) */
797 u_int32_t ifi_baudrate; /* linespeed */
798 /* volatile statistics */
799 u_int64_t ifi_ipackets; /* packets received on interface */
800 u_int64_t ifi_ierrors; /* input errors on interface */
801 u_int64_t ifi_opackets; /* packets sent on interface */
802 u_int64_t ifi_oerrors; /* output errors on interface */
803 u_int64_t ifi_collisions; /* collisions on csma interfaces */
804 u_int64_t ifi_ibytes; /* total number of octets received */
805 u_int64_t ifi_obytes; /* total number of octets sent */
806 u_int64_t ifi_imcasts; /* packets received via multicast */
807 u_int64_t ifi_omcasts; /* packets sent via multicast */
808 u_int64_t ifi_iqdrops; /* dropped on input, this interface */
809 u_int64_t ifi_noproto; /* destined for unsupported protocol */
810 u_int32_t ifi_recvtiming; /* usec spent receiving when timing */
811 u_int32_t ifi_xmittiming; /* usec spent xmitting when timing */
812 u_int64_t ifi_alignerrs; /* unaligned (32-bit) input pkts */
813 u_int64_t ifi_dt_bytes; /* Data threshold counter */
814 u_int64_t ifi_fpackets; /* forwarded packets on interface */
815 u_int64_t ifi_fbytes; /* forwarded bytes on interface */
816 struct timeval ifi_lastchange; /* time of last administrative change */
817 struct timeval ifi_lastupdown; /* time of last up/down event */
818 u_int32_t ifi_hwassist; /* HW offload capabilities */
819 u_int32_t ifi_tso_v4_mtu; /* TCP Segment Offload IPv4 maximum segment size */
820 u_int32_t ifi_tso_v6_mtu; /* TCP Segment Offload IPv6 maximum segment size */
821 };
822 #endif /* BSD_KERNEL_PRIVATE */
823
824 #ifdef PRIVATE
825 #define if_mtu if_data.ifi_mtu
826 #define if_type if_data.ifi_type
827 #define if_typelen if_data.ifi_typelen
828 #define if_physical if_data.ifi_physical
829 #define if_addrlen if_data.ifi_addrlen
830 #define if_hdrlen if_data.ifi_hdrlen
831 #define if_metric if_data.ifi_metric
832 #define if_baudrate if_data.ifi_baudrate
833 #define if_hwassist if_data.ifi_hwassist
834 #define if_ipackets if_data.ifi_ipackets
835 #define if_ierrors if_data.ifi_ierrors
836 #define if_opackets if_data.ifi_opackets
837 #define if_oerrors if_data.ifi_oerrors
838 #define if_collisions if_data.ifi_collisions
839 #define if_ibytes if_data.ifi_ibytes
840 #define if_obytes if_data.ifi_obytes
841 #define if_imcasts if_data.ifi_imcasts
842 #define if_omcasts if_data.ifi_omcasts
843 #define if_iqdrops if_data.ifi_iqdrops
844 #define if_noproto if_data.ifi_noproto
845 #define if_lastchange if_data.ifi_lastchange
846 #define if_recvquota if_data.ifi_recvquota
847 #define if_xmitquota if_data.ifi_xmitquota
848 #endif /* PRIVATE */
849 #ifdef BSD_KERNEL_PRIVATE
850 #define if_tso_v4_mtu if_data.ifi_tso_v4_mtu
851 #define if_tso_v6_mtu if_data.ifi_tso_v6_mtu
852 #define if_alignerrs if_data.ifi_alignerrs
853 #define if_dt_bytes if_data.ifi_dt_bytes
854 #define if_fpackets if_data.ifi_fpackets
855 #define if_fbytes if_data.ifi_fbytes
856 #define if_lastupdown if_data.ifi_lastupdown
857 #endif /* BSD_KERNEL_PRIVATE */
858
859 #ifdef BSD_KERNEL_PRIVATE
860 /*
861 * Forward structure declarations for function prototypes [sic].
862 */
863 struct proc;
864 struct rtentry;
865 struct socket;
866 struct ifnet_filter;
867 struct mbuf;
868 struct ifaddr;
869 struct tqdummy;
870 struct proto_hash_entry;
871 struct dlil_threading_info;
872 struct tcpstat_local;
873 struct udpstat_local;
874 #if PF
875 struct pfi_kif;
876 #endif /* PF */
877
878 /* we use TAILQs so that the order of instantiation is preserved in the list */
879 TAILQ_HEAD(ifnethead, ifnet);
880 TAILQ_HEAD(ifaddrhead, ifaddr);
881 LIST_HEAD(ifmultihead, ifmultiaddr);
882 TAILQ_HEAD(tailq_head, tqdummy);
883 TAILQ_HEAD(ifnet_filter_head, ifnet_filter);
884 TAILQ_HEAD(ddesc_head_name, dlil_demux_desc);
885
886 extern boolean_t intcoproc_unrestricted;
887 #endif /* BSD_KERNEL_PRIVATE */
888
889 #ifdef PRIVATE
890 /*
891 * All of the following IF_HWASSIST_* flags are defined in kpi_interface.h as
892 * IFNET_* flags. These are redefined here as constants to avoid failures to
893 * build user level programs that can not include kpi_interface.h. It is
894 * important to keep this in sync with the definitions in kpi_interface.h.
895 * The corresponding constant for each definition is mentioned in the comment.
896 *
897 * Bottom 16 bits reserved for hardware checksum
898 */
899 #define IF_HWASSIST_CSUM_IP 0x0001 /* will csum IP, IFNET_CSUM_IP */
900 #define IF_HWASSIST_CSUM_TCP 0x0002 /* will csum TCP, IFNET_CSUM_TCP */
901 #define IF_HWASSIST_CSUM_UDP 0x0004 /* will csum UDP, IFNET_CSUM_UDP */
902 #define IF_HWASSIST_CSUM_IP_FRAGS 0x0008 /* will csum IP fragments, IFNET_CSUM_FRAGMENT */
903 #define IF_HWASSIST_CSUM_FRAGMENT 0x0010 /* will do IP fragmentation, IFNET_IP_FRAGMENT */
904 #define IF_HWASSIST_CSUM_TCPIPV6 0x0020 /* will csum TCPv6, IFNET_CSUM_TCPIPV6 */
905 #define IF_HWASSIST_CSUM_UDPIPV6 0x0040 /* will csum UDPv6, IFNET_CSUM_UDP */
906 #define IF_HWASSIST_CSUM_FRAGMENT_IPV6 0x0080 /* will do IPv6 fragmentation, IFNET_IPV6_FRAGMENT */
907 #define IF_HWASSIST_CSUM_PARTIAL 0x1000 /* simple Sum16 computation, IFNET_CSUM_PARTIAL */
908 #define IF_HWASSIST_CSUM_ZERO_INVERT 0x2000 /* capable of inverting csum of 0 to -0 (0xffff) */
909 #define IF_HWASSIST_CSUM_MASK 0xffff
910 #define IF_HWASSIST_CSUM_FLAGS(hwassist) ((hwassist) & IF_HWASSIST_CSUM_MASK)
911
912 /* VLAN support */
913 #define IF_HWASSIST_VLAN_TAGGING 0x00010000 /* supports VLAN tagging, IFNET_VLAN_TAGGING */
914 #define IF_HWASSIST_VLAN_MTU 0x00020000 /* supports VLAN MTU-sized packet (for software VLAN), IFNET_VLAN_MTU */
915
916 /* TCP Segment Offloading support */
917
918 #define IF_HWASSIST_TSO_V4 0x00200000 /* will do TCP Segment offload for IPv4, IFNET_TSO_IPV4 */
919 #define IF_HWASSIST_TSO_V6 0x00400000 /* will do TCP Segment offload for IPv6, IFNET_TSO_IPV6 */
920 #endif /* PRIVATE */
921
922 #ifdef PRIVATE
923 #define IFXNAMSIZ (IFNAMSIZ + 8) /* external name (name + unit) */
924 #define IFNET_NETWORK_ID_LEN 32
925 #endif
926
927 #ifdef BSD_KERNEL_PRIVATE
928 /*
929 * ifnet is private to BSD portion of kernel
930 */
931 #include <sys/mcache.h>
932 #include <sys/tree.h>
933 #include <netinet/in.h>
934 #include <net/if_dl.h>
935 #include <net/classq/if_classq.h>
936 #include <net/if_types.h>
937
938 RB_HEAD(ll_reach_tree, if_llreach); /* define struct ll_reach_tree */
939
940
941 typedef errno_t (*dlil_input_func)(ifnet_t ifp, mbuf_t m_head,
942 mbuf_t m_tail, const struct ifnet_stat_increment_param *s,
943 boolean_t poll, struct thread *tp);
944 typedef errno_t (*dlil_output_func)(ifnet_t interface, mbuf_t data);
945
946 typedef u_int8_t ipv6_router_mode_t;
947
948 #define if_name(ifp) ifp->if_xname
949 /*
950 * Structure defining a network interface.
951 *
952 * (Would like to call this struct ``if'', but C isn't PL/1.)
953 */
954 struct ifnet {
955 /*
956 * Lock (RW or mutex) to protect this data structure (static storage.)
957 */
958 decl_lck_rw_data(, if_lock);
959 void *if_softc; /* pointer to driver state */
960 const char *if_name; /* name, e.g. ``en'' or ``lo'' */
961 const char *if_xname; /* external name (name + unit) */
962 struct if_description if_desc; /* extended description */
963 TAILQ_ENTRY(ifnet) if_link; /* all struct ifnets are chained */
964 TAILQ_ENTRY(ifnet) if_detaching_link; /* list of detaching ifnets */
965 TAILQ_ENTRY(ifnet) if_ordered_link; /* list of ordered ifnets */
966
967 decl_lck_mtx_data(, if_ref_lock);
968 u_int32_t if_refflags; /* see IFRF flags below */
969 u_int32_t if_refio; /* number of io ops to the underlying driver */
970 u_int32_t if_threads_pending; /* Threads created but waiting for first run */
971 u_int32_t if_datamov; /* number of threads moving data */
972 u_int32_t if_drainers; /* number of draining threads */
973 u_int32_t if_suspend; /* number of suspend requests */
974
975 #define if_list if_link
976 struct ifaddrhead if_addrhead; /* linked list of addresses per if */
977 #define if_addrlist if_addrhead
978 struct ifaddr *if_lladdr; /* link address (first/permanent) */
979
980 u_int32_t if_qosmarking_mode; /* generation to use with NECP clients */
981
982 int if_pcount; /* number of promiscuous listeners */
983 struct bpf_if *if_bpf; /* packet filter structure */
984 u_short if_index; /* numeric abbreviation for this if */
985 short if_unit; /* sub-unit for lower level driver */
986 short if_timer; /* time 'til if_watchdog called */
987 short if_flags; /* up/down, broadcast, etc. */
988 u_int32_t if_eflags; /* see <net/if.h> */
989 u_int32_t if_xflags; /* see <net/if.h> */
990
991 int if_capabilities; /* interface features & capabilities */
992 int if_capenable; /* enabled features & capabilities */
993
994 void *if_linkmib; /* link-type-specific MIB data */
995 uint32_t if_linkmiblen; /* length of above data */
996
997 struct if_data_internal if_data __attribute__((aligned(8)));
998
999 ifnet_family_t if_family; /* value assigned by Apple */
1000 ifnet_subfamily_t if_subfamily; /* value assigned by Apple */
1001 uintptr_t if_family_cookie;
1002 volatile dlil_input_func if_input_dlil;
1003 volatile dlil_output_func if_output_dlil;
1004 volatile ifnet_start_func if_start;
1005 ifnet_output_func if_output;
1006 ifnet_pre_enqueue_func if_pre_enqueue;
1007 ifnet_ctl_func if_output_ctl;
1008 ifnet_input_poll_func if_input_poll;
1009 ifnet_ctl_func if_input_ctl;
1010 ifnet_ioctl_func if_ioctl;
1011 ifnet_set_bpf_tap if_set_bpf_tap;
1012 ifnet_detached_func if_free;
1013 ifnet_demux_func if_demux;
1014 ifnet_event_func if_event;
1015 ifnet_framer_func if_framer_legacy;
1016 ifnet_framer_extended_func if_framer;
1017 ifnet_add_proto_func if_add_proto;
1018 ifnet_del_proto_func if_del_proto;
1019 ifnet_check_multi if_check_multi;
1020 struct proto_hash_entry *if_proto_hash;
1021 void *if_kpi_storage;
1022
1023 u_int32_t if_flowhash; /* interface flow control ID */
1024
1025 decl_lck_mtx_data(, if_start_lock);
1026 u_int32_t if_start_flags; /* see IFSF flags below */
1027 u_int32_t if_start_req;
1028 u_int8_t if_start_embryonic;
1029 u_int8_t if_start_active; /* output is active */
1030 u_int16_t if_start_delayed;
1031 u_int16_t if_start_delay_qlen;
1032 u_int16_t if_start_delay_idle;
1033 u_int64_t if_start_delay_swin;
1034 u_int32_t if_start_delay_cnt;
1035 u_int32_t if_start_delay_timeout; /* nanoseconds */
1036 struct timespec if_start_cycle; /* restart interval */
1037 struct thread *if_start_thread;
1038
1039 struct ifclassq if_snd; /* transmit queue */
1040 u_int32_t if_output_sched_model; /* tx sched model */
1041
1042 struct if_bandwidths if_output_bw;
1043 struct if_bandwidths if_input_bw;
1044
1045 struct if_latencies if_output_lt;
1046 struct if_latencies if_input_lt;
1047
1048 decl_lck_mtx_data(, if_flt_lock);
1049 u_int32_t if_flt_busy;
1050 u_int32_t if_flt_waiters;
1051 struct ifnet_filter_head if_flt_head;
1052
1053 struct ifmultihead if_multiaddrs; /* multicast addresses */
1054 u_int32_t if_updatemcasts; /* mcast addrs need updating */
1055 int if_amcount; /* # of all-multicast reqs */
1056 decl_lck_mtx_data(, if_addrconfig_lock); /* for serializing addr config */
1057 struct in_multi *if_allhostsinm; /* store all-hosts inm for this ifp */
1058
1059 /*
1060 * Opportunistic polling parameters.
1061 */
1062 decl_lck_mtx_data(, if_poll_lock);
1063 struct if_poll_params {
1064 u_int16_t poll_req;
1065 u_int16_t poll_update; /* link update */
1066 u_int32_t poll_flags;
1067 #define IF_POLLF_READY 0x1 /* poll thread is ready */
1068 #define IF_POLLF_RUNNING 0x2 /* poll thread is running/active */
1069 #define IF_POLLF_EMBRYONIC 0x8000 /* poll thread is being setup */
1070 struct timespec poll_cycle; /* poll interval */
1071 struct thread *poll_thread;
1072
1073 ifnet_model_t poll_mode; /* current mode */
1074 struct pktcntr poll_tstats; /* incremental polling statistics */
1075 struct if_rxpoll_stats poll_pstats; /* polling statistics */
1076 struct pktcntr poll_sstats; /* packets and bytes per sampling */
1077 struct timespec poll_mode_holdtime; /* mode holdtime in nsec */
1078 struct timespec poll_mode_lasttime; /* last mode change time in nsec */
1079 struct timespec poll_sample_holdtime; /* sampling holdtime in nsec */
1080 struct timespec poll_sample_lasttime; /* last sampling time in nsec */
1081 struct timespec poll_dbg_lasttime; /* last debug message time in nsec */
1082 } rxpoll_params;
1083 #define if_poll_req rxpoll_params.poll_req
1084 #define if_poll_update rxpoll_params.poll_update
1085 #define if_poll_flags rxpoll_params.poll_flags
1086 #define if_poll_cycle rxpoll_params.poll_cycle
1087 #define if_poll_thread rxpoll_params.poll_thread
1088 #define if_poll_mode rxpoll_params.poll_mode
1089 #define if_poll_tstats rxpoll_params.poll_tstats
1090 #define if_poll_sstats rxpoll_params.poll_sstats
1091 #define if_poll_pstats rxpoll_params.poll_pstats
1092
1093 #define if_poll_mode_holdtime rxpoll_params.poll_mode_holdtime
1094 #define if_poll_mode_lasttime rxpoll_params.poll_mode_lasttime
1095 #define if_poll_sample_holdtime rxpoll_params.poll_sample_holdtime
1096 #define if_poll_sample_lasttime rxpoll_params.poll_sample_lasttime
1097 #define if_poll_dbg_lasttime rxpoll_params.poll_dbg_lasttime
1098
1099 #define if_rxpoll_offreq rxpoll_params.poll_pstats.ifi_poll_off_req
1100 #define if_rxpoll_offerr rxpoll_params.poll_pstats.ifi_poll_off_err
1101 #define if_rxpoll_onreq rxpoll_params.poll_pstats.ifi_poll_on_req
1102 #define if_rxpoll_onerr rxpoll_params.poll_pstats.ifi_poll_on_err
1103 #define if_rxpoll_wavg rxpoll_params.poll_pstats.ifi_poll_wakeups_avg
1104 #define if_rxpoll_wlowat rxpoll_params.poll_pstats.ifi_poll_wakeups_lowat
1105 #define if_rxpoll_whiwat rxpoll_params.poll_pstats.ifi_poll_wakeups_hiwat
1106 #define if_rxpoll_pavg rxpoll_params.poll_pstats.ifi_poll_packets_avg
1107 #define if_rxpoll_pmin rxpoll_params.poll_pstats.ifi_poll_packets_min
1108 #define if_rxpoll_pmax rxpoll_params.poll_pstats.ifi_poll_packets_max
1109 #define if_rxpoll_plowat rxpoll_params.poll_pstats.ifi_poll_packets_lowat
1110 #define if_rxpoll_phiwat rxpoll_params.poll_pstats.ifi_poll_packets_hiwat
1111 #define if_rxpoll_bavg rxpoll_params.poll_pstats.ifi_poll_bytes_avg
1112 #define if_rxpoll_bmin rxpoll_params.poll_pstats.ifi_poll_bytes_min
1113 #define if_rxpoll_bmax rxpoll_params.poll_pstats.ifi_poll_bytes_max
1114 #define if_rxpoll_blowat rxpoll_params.poll_pstats.ifi_poll_bytes_lowat
1115 #define if_rxpoll_bhiwat rxpoll_params.poll_pstats.ifi_poll_bytes_hiwat
1116 #define if_rxpoll_plim rxpoll_params.poll_pstats.ifi_poll_packets_limit
1117 #define if_rxpoll_ival rxpoll_params.poll_pstats.ifi_poll_interval_time
1118
1119 struct dlil_threading_info *if_inp;
1120
1121 /* allocated once along with dlil_ifnet and is never freed */
1122 thread_call_t if_dt_tcall;
1123
1124 struct {
1125 u_int32_t length;
1126 union {
1127 u_char buffer[8];
1128 u_char *ptr;
1129 } u;
1130 } if_broadcast;
1131
1132 #if PF
1133 struct pfi_kif *if_pf_kif;
1134 #endif /* PF */
1135
1136 decl_lck_mtx_data(, if_cached_route_lock);
1137 u_int32_t if_fwd_cacheok;
1138 struct route if_fwd_route; /* cached forwarding route */
1139 struct route if_src_route; /* cached ipv4 source route */
1140 struct route_in6 if_src_route6; /* cached ipv6 source route */
1141
1142 decl_lck_rw_data(, if_llreach_lock);
1143 struct ll_reach_tree if_ll_srcs; /* source link-layer tree */
1144
1145 void *if_bridge; /* bridge glue */
1146
1147 u_int32_t if_want_aggressive_drain;
1148 u_int32_t if_idle_flags; /* idle flags */
1149 u_int32_t if_idle_new_flags; /* temporary idle flags */
1150 u_int32_t if_idle_new_flags_mask; /* temporary mask */
1151 u_int32_t if_route_refcnt; /* idle: route ref count */
1152 u_int32_t if_rt_sendts; /* last of a real time packet */
1153
1154 struct if_traffic_class if_tc __attribute__((aligned(8)));
1155 #if INET
1156 struct igmp_ifinfo *if_igi; /* for IGMPv3 */
1157 #endif /* INET */
1158 struct mld_ifinfo *if_mli; /* for MLDv2 */
1159
1160 struct tcpstat_local *if_tcp_stat; /* TCP specific stats */
1161 struct udpstat_local *if_udp_stat; /* UDP specific stats */
1162
1163 struct {
1164 int32_t level; /* cached logging level */
1165 u_int32_t flags; /* cached logging flags */
1166 int32_t category; /* cached category */
1167 int32_t subcategory; /* cached subcategory */
1168 } if_log;
1169
1170 struct {
1171 struct ifnet *ifp; /* delegated ifp */
1172 u_int32_t type; /* delegated i/f type */
1173 u_int32_t family; /* delegated i/f family */
1174 u_int32_t subfamily; /* delegated i/f sub-family */
1175 uint32_t expensive:1, /* delegated i/f expensive? */
1176 constrained:1; /* delegated i/f constrained? */
1177 } if_delegated;
1178
1179 uuid_t *if_agentids; /* network agents attached to interface */
1180 u_int32_t if_agentcount;
1181
1182 volatile uint32_t if_low_power_gencnt;
1183
1184 u_int32_t if_generation; /* generation to use with NECP clients */
1185 u_int32_t if_fg_sendts; /* last send on a fg socket in seconds */
1186
1187 u_int64_t if_data_threshold;
1188
1189 /* Total bytes in send socket buffer */
1190 int64_t if_sndbyte_total __attribute__ ((aligned(8)));
1191 /* Total unsent bytes in send socket buffer */
1192 int64_t if_sndbyte_unsent __attribute__ ((aligned(8)));
1193 /* count of times, when there was data to send when sleep is impending */
1194 uint32_t if_unsent_data_cnt;
1195
1196 #if INET
1197 decl_lck_rw_data(, if_inetdata_lock);
1198 void *if_inetdata;
1199 #endif /* INET */
1200 decl_lck_rw_data(, if_inet6data_lock);
1201 void *if_inet6data;
1202 decl_lck_rw_data(, if_link_status_lock);
1203 struct if_link_status *if_link_status;
1204 struct if_interface_state if_interface_state;
1205 struct if_tcp_ecn_stat *if_ipv4_stat;
1206 struct if_tcp_ecn_stat *if_ipv6_stat;
1207
1208 struct if_lim_perf_stat if_lim_stat;
1209
1210 uint32_t if_tcp_kao_max;
1211 uint32_t if_tcp_kao_cnt;
1212
1213 struct netem *if_output_netem;
1214
1215 ipv6_router_mode_t if_ipv6_router_mode; /* see <netinet6/in6_var.h> */
1216
1217 uint8_t network_id[IFNET_NETWORK_ID_LEN];
1218 uint8_t network_id_len;
1219 };
1220
1221 /* Interface event handling declarations */
1222 extern struct eventhandler_lists_ctxt ifnet_evhdlr_ctxt;
1223
1224 typedef enum {
1225 INTF_EVENT_CODE_CREATED,
1226 INTF_EVENT_CODE_REMOVED,
1227 INTF_EVENT_CODE_STATUS_UPDATE,
1228 INTF_EVENT_CODE_IPADDR_ATTACHED,
1229 INTF_EVENT_CODE_IPADDR_DETACHED,
1230 INTF_EVENT_CODE_LLADDR_UPDATE,
1231 INTF_EVENT_CODE_MTU_CHANGED,
1232 INTF_EVENT_CODE_LOW_POWER_UPDATE,
1233 } intf_event_code_t;
1234
1235 typedef void (*ifnet_event_fn)(struct eventhandler_entry_arg, struct ifnet *, struct sockaddr *, intf_event_code_t);
1236 EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn);
1237
1238 #define IF_TCP_STATINC(_ifp, _s) do { \
1239 if ((_ifp)->if_tcp_stat != NULL) \
1240 atomic_add_64(&(_ifp)->if_tcp_stat->_s, 1); \
1241 } while (0);
1242
1243 #define IF_UDP_STATINC(_ifp, _s) do { \
1244 if ((_ifp)->if_udp_stat != NULL) \
1245 atomic_add_64(&(_ifp)->if_udp_stat->_s, 1); \
1246 } while (0);
1247
1248 /*
1249 * Valid values for if_refflags
1250 */
1251 #define IFRF_EMBRYONIC 0x1 /* ifnet is allocated; awaiting attach */
1252 #define IFRF_ATTACHED 0x2 /* ifnet attach is completely done */
1253 #define IFRF_DETACHING 0x4 /* detach has been requested */
1254 #define IFRF_READY 0x8 /* data path is ready */
1255
1256 #define IFRF_ATTACH_MASK \
1257 (IFRF_EMBRYONIC|IFRF_ATTACHED|IFRF_DETACHING)
1258
1259 #define IF_FULLY_ATTACHED(_ifp) \
1260 (((_ifp)->if_refflags & IFRF_ATTACH_MASK) == IFRF_ATTACHED)
1261
1262 #define IF_FULLY_ATTACHED_AND_READY(_ifp) \
1263 (IF_FULLY_ATTACHED(_ifp) && ((_ifp)->if_refflags & IFRF_READY))
1264 /*
1265 * Valid values for if_start_flags
1266 */
1267 #define IFSF_FLOW_CONTROLLED 0x1 /* flow controlled */
1268
1269 /*
1270 * Structure describing a `cloning' interface.
1271 */
1272 struct if_clone {
1273 LIST_ENTRY(if_clone) ifc_list; /* on list of cloners */
1274 decl_lck_mtx_data(, ifc_mutex); /* To serialize clone create/delete */
1275 const char *ifc_name; /* name of device, e.g. `vlan' */
1276 size_t ifc_namelen; /* length of name */
1277 u_int32_t ifc_minifs; /* minimum number of interfaces */
1278 u_int32_t ifc_maxunit; /* maximum unit number */
1279 unsigned char *ifc_units; /* bitmap to handle units */
1280 u_int32_t ifc_bmlen; /* bitmap length */
1281 u_int32_t ifc_zone_max_elem; /* Max elements for this zone type */
1282 u_int32_t ifc_softc_size; /* size of softc for the device */
1283 struct zone *ifc_zone; /* if_clone allocation zone */
1284 int (*ifc_create)(struct if_clone *, u_int32_t, void *);
1285 int (*ifc_destroy)(struct ifnet *);
1286 };
1287
1288 #define IF_CLONE_INITIALIZER(name, create, destroy, minifs, maxunit, zone_max_elem, softc_size) { \
1289 .ifc_list = { NULL, NULL }, \
1290 .ifc_mutex = {}, \
1291 .ifc_name = name, \
1292 .ifc_namelen = (sizeof (name) - 1), \
1293 .ifc_minifs = minifs, \
1294 .ifc_maxunit = maxunit, \
1295 .ifc_units = NULL, \
1296 .ifc_bmlen = 0, \
1297 .ifc_zone_max_elem = zone_max_elem, \
1298 .ifc_softc_size = softc_size, \
1299 .ifc_zone = NULL, \
1300 .ifc_create = create, \
1301 .ifc_destroy = destroy \
1302 }
1303
1304 #define M_CLONE M_IFADDR
1305
1306 /*
1307 * Macros to manipulate ifqueue. Users of these macros are responsible
1308 * for serialization, by holding whatever lock is appropriate for the
1309 * corresponding structure that is referring the ifqueue.
1310 */
1311 #define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen)
1312 #define IF_DROP(ifq) ((ifq)->ifq_drops++)
1313
1314 #define IF_ENQUEUE(ifq, m) do { \
1315 (m)->m_nextpkt = NULL; \
1316 if ((ifq)->ifq_tail == NULL) \
1317 (ifq)->ifq_head = m; \
1318 else \
1319 ((struct mbuf*)(ifq)->ifq_tail)->m_nextpkt = m; \
1320 (ifq)->ifq_tail = m; \
1321 (ifq)->ifq_len++; \
1322 } while (0)
1323
1324 #define IF_PREPEND(ifq, m) do { \
1325 (m)->m_nextpkt = (ifq)->ifq_head; \
1326 if ((ifq)->ifq_tail == NULL) \
1327 (ifq)->ifq_tail = (m); \
1328 (ifq)->ifq_head = (m); \
1329 (ifq)->ifq_len++; \
1330 } while (0)
1331
1332 #define IF_DEQUEUE(ifq, m) do { \
1333 (m) = (ifq)->ifq_head; \
1334 if (m != NULL) { \
1335 if (((ifq)->ifq_head = (m)->m_nextpkt) == NULL) \
1336 (ifq)->ifq_tail = NULL; \
1337 (m)->m_nextpkt = NULL; \
1338 (ifq)->ifq_len--; \
1339 } \
1340 } while (0)
1341
1342 #define IF_REMQUEUE(ifq, m) do { \
1343 struct mbuf *_p = (ifq)->ifq_head; \
1344 struct mbuf *_n = (m)->m_nextpkt; \
1345 if ((m) == _p) \
1346 _p = NULL; \
1347 while (_p != NULL) { \
1348 if (_p->m_nextpkt == (m)) \
1349 break; \
1350 _p = _p->m_nextpkt; \
1351 } \
1352 VERIFY(_p != NULL || ((m) == (ifq)->ifq_head)); \
1353 if ((m) == (ifq)->ifq_head) \
1354 (ifq)->ifq_head = _n; \
1355 if ((m) == (ifq)->ifq_tail) \
1356 (ifq)->ifq_tail = _p; \
1357 VERIFY((ifq)->ifq_tail != NULL || (ifq)->ifq_head == NULL); \
1358 VERIFY((ifq)->ifq_len != 0); \
1359 --(ifq)->ifq_len; \
1360 if (_p != NULL) \
1361 _p->m_nextpkt = _n; \
1362 (m)->m_nextpkt = NULL; \
1363 } while (0)
1364
1365 #define IF_DRAIN(ifq) do { \
1366 struct mbuf *_m; \
1367 for (;;) { \
1368 IF_DEQUEUE(ifq, _m); \
1369 if (_m == NULL) \
1370 break; \
1371 m_freem(_m); \
1372 } \
1373 } while (0)
1374
1375 /*
1376 * The ifaddr structure contains information about one address
1377 * of an interface. They are maintained by the different address families,
1378 * are allocated and attached when an address is set, and are linked
1379 * together so all addresses for an interface can be located.
1380 */
1381 struct ifaddr {
1382 decl_lck_mtx_data(, ifa_lock); /* lock for ifaddr */
1383 uint32_t ifa_refcnt; /* ref count, use IFA_{ADD,REM}REF */
1384 uint32_t ifa_debug; /* debug flags */
1385 struct sockaddr *ifa_addr; /* address of interface */
1386 struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
1387 #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
1388 struct sockaddr *ifa_netmask; /* used to determine subnet */
1389 struct ifnet *ifa_ifp; /* back-pointer to interface */
1390 TAILQ_ENTRY(ifaddr) ifa_link; /* queue macro glue */
1391 void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */
1392 (int, struct rtentry *, struct sockaddr *);
1393 uint32_t ifa_flags; /* mostly rt_flags for cloning */
1394 int32_t ifa_metric; /* cost of going out this interface */
1395 void (*ifa_free)(struct ifaddr *); /* callback fn for freeing */
1396 void (*ifa_trace) /* callback fn for tracing refs */
1397 (struct ifaddr *, int);
1398 void (*ifa_attached)(struct ifaddr *); /* callback fn for attaching */
1399 void (*ifa_detached)(struct ifaddr *); /* callback fn for detaching */
1400 void *ifa_del_wc; /* Wait channel to avoid address deletion races */
1401 int ifa_del_waiters; /* Threads in wait to delete the address */
1402 #if __arm__ && (__BIGGEST_ALIGNMENT__ > 4)
1403 /* For the newer ARMv7k ABI where 64-bit types are 64-bit aligned, but pointers
1404 * are 32-bit:
1405 * Align to 64-bit since we cast to this to struct in6_ifaddr, which is
1406 * 64-bit aligned
1407 */
1408 } __attribute__ ((aligned(8)));
1409 #else
1410 };
1411 #endif
1412
1413
1414 /*
1415 * Valid values for ifa_flags
1416 */
1417 #define IFA_ROUTE RTF_UP /* route installed (0x1) */
1418 #define IFA_CLONING RTF_CLONING /* (0x100) */
1419
1420 /*
1421 * Valid values for ifa_debug
1422 */
1423 #define IFD_ATTACHED 0x1 /* attached to list */
1424 #define IFD_ALLOC 0x2 /* dynamically allocated */
1425 #define IFD_DEBUG 0x4 /* has debugging info */
1426 #define IFD_LINK 0x8 /* link address */
1427 #define IFD_TRASHED 0x10 /* in trash list */
1428 #define IFD_DETACHING 0x20 /* detach is in progress */
1429 #define IFD_NOTREADY 0x40 /* embryonic; not yet ready */
1430
1431 #define IFA_LOCK_ASSERT_HELD(_ifa) \
1432 LCK_MTX_ASSERT(&(_ifa)->ifa_lock, LCK_MTX_ASSERT_OWNED)
1433
1434 #define IFA_LOCK_ASSERT_NOTHELD(_ifa) \
1435 LCK_MTX_ASSERT(&(_ifa)->ifa_lock, LCK_MTX_ASSERT_NOTOWNED)
1436
1437 #define IFA_LOCK(_ifa) \
1438 lck_mtx_lock(&(_ifa)->ifa_lock)
1439
1440 #define IFA_LOCK_SPIN(_ifa) \
1441 lck_mtx_lock_spin(&(_ifa)->ifa_lock)
1442
1443 #define IFA_CONVERT_LOCK(_ifa) do { \
1444 IFA_LOCK_ASSERT_HELD(_ifa); \
1445 lck_mtx_convert_spin(&(_ifa)->ifa_lock); \
1446 } while (0)
1447
1448 #define IFA_UNLOCK(_ifa) \
1449 lck_mtx_unlock(&(_ifa)->ifa_lock)
1450
1451 #define IFA_ADDREF(_ifa) \
1452 ifa_addref(_ifa, 0)
1453
1454 #define IFA_ADDREF_LOCKED(_ifa) \
1455 ifa_addref(_ifa, 1)
1456
1457 #define IFA_REMREF(_ifa) do { \
1458 (void) ifa_remref(_ifa, 0); \
1459 } while (0)
1460
1461 #define IFA_REMREF_LOCKED(_ifa) \
1462 ifa_remref(_ifa, 1)
1463
1464 /*
1465 * Multicast address structure. This is analogous to the ifaddr
1466 * structure except that it keeps track of multicast addresses.
1467 * Also, the request count here is a count of requests for this
1468 * address, not a count of pointers to this structure; anonymous
1469 * membership(s) holds one outstanding request count.
1470 */
1471 struct ifmultiaddr {
1472 decl_lck_mtx_data(, ifma_lock);
1473 u_int32_t ifma_refcount; /* reference count */
1474 u_int32_t ifma_anoncnt; /* # of anonymous requests */
1475 u_int32_t ifma_reqcnt; /* total requests for this address */
1476 u_int32_t ifma_debug; /* see ifa_debug flags */
1477 u_int32_t ifma_flags; /* see below */
1478 LIST_ENTRY(ifmultiaddr) ifma_link; /* queue macro glue */
1479 struct sockaddr *ifma_addr; /* address this membership is for */
1480 struct ifmultiaddr *ifma_ll; /* link-layer translation, if any */
1481 struct ifnet *ifma_ifp; /* back-pointer to interface */
1482 void *ifma_protospec; /* protocol-specific state, if any */
1483 void (*ifma_trace) /* callback fn for tracing refs */
1484 (struct ifmultiaddr *, int);
1485 };
1486
1487 /*
1488 * Values for ifma_flags
1489 */
1490 #define IFMAF_ANONYMOUS 0x1 /* has anonymous request ref(s) held */
1491
1492 #define IFMA_LOCK_ASSERT_HELD(_ifma) \
1493 LCK_MTX_ASSERT(&(_ifma)->ifma_lock, LCK_MTX_ASSERT_OWNED)
1494
1495 #define IFMA_LOCK_ASSERT_NOTHELD(_ifma) \
1496 LCK_MTX_ASSERT(&(_ifma)->ifma_lock, LCK_MTX_ASSERT_NOTOWNED)
1497
1498 #define IFMA_LOCK(_ifma) \
1499 lck_mtx_lock(&(_ifma)->ifma_lock)
1500
1501 #define IFMA_LOCK_SPIN(_ifma) \
1502 lck_mtx_lock_spin(&(_ifma)->ifma_lock)
1503
1504 #define IFMA_CONVERT_LOCK(_ifma) do { \
1505 IFMA_LOCK_ASSERT_HELD(_ifma); \
1506 lck_mtx_convert_spin(&(_ifma)->ifma_lock); \
1507 } while (0)
1508
1509 #define IFMA_UNLOCK(_ifma) \
1510 lck_mtx_unlock(&(_ifma)->ifma_lock)
1511
1512 #define IFMA_ADDREF(_ifma) \
1513 ifma_addref(_ifma, 0)
1514
1515 #define IFMA_ADDREF_LOCKED(_ifma) \
1516 ifma_addref(_ifma, 1)
1517
1518 #define IFMA_REMREF(_ifma) \
1519 ifma_remref(_ifma)
1520
1521 /*
1522 * Indicate whether or not the immediate interface, or the interface delegated
1523 * by it, is a cellular interface (IFT_CELLULAR). Delegated interface type is
1524 * set/cleared along with the delegated ifp; we cache the type for performance
1525 * to avoid dereferencing delegated ifp each time.
1526 *
1527 * Note that this is meant to be used only for accounting and policy purposes;
1528 * certain places need to explicitly know the immediate interface type, and
1529 * this macro should not be used there.
1530 *
1531 * The test is done against IFT_CELLULAR instead of IFNET_FAMILY_CELLULAR to
1532 * handle certain cases where the family isn't set to the latter.
1533 */
1534 #define IFNET_IS_CELLULAR(_ifp) \
1535 ((_ifp)->if_type == IFT_CELLULAR || \
1536 (_ifp)->if_delegated.type == IFT_CELLULAR)
1537
1538 /*
1539 * Indicate whether or not the immediate interface, or the interface delegated
1540 * by it, is an ETHERNET interface.
1541 */
1542 #define IFNET_IS_ETHERNET(_ifp) \
1543 ((_ifp)->if_family == IFNET_FAMILY_ETHERNET || \
1544 (_ifp)->if_delegated.family == IFNET_FAMILY_ETHERNET)
1545 /*
1546 * Indicate whether or not the immediate interface, or the interface delegated
1547 * by it, is a Wi-Fi interface (IFNET_SUBFAMILY_WIFI). Delegated interface
1548 * subfamily is set/cleared along with the delegated ifp; we cache the subfamily
1549 * for performance to avoid dereferencing delegated ifp each time.
1550 *
1551 * Note that this is meant to be used only for accounting and policy purposes;
1552 * certain places need to explicitly know the immediate interface type, and
1553 * this macro should not be used there.
1554 *
1555 * The test is done against IFNET_SUBFAMILY_WIFI as the family may be set to
1556 * IFNET_FAMILY_ETHERNET (as well as type to IFT_ETHER) which is too generic.
1557 */
1558 #define IFNET_IS_WIFI(_ifp) \
1559 (((_ifp)->if_family == IFNET_FAMILY_ETHERNET && \
1560 (_ifp)->if_subfamily == IFNET_SUBFAMILY_WIFI) || \
1561 ((_ifp)->if_delegated.family == IFNET_FAMILY_ETHERNET && \
1562 (_ifp)->if_delegated.subfamily == IFNET_SUBFAMILY_WIFI))
1563
1564 /*
1565 * Indicate whether or not the immediate interface, or the interface delegated
1566 * by it, is a Wired interface (several families). Delegated interface
1567 * family is set/cleared along with the delegated ifp; we cache the family
1568 * for performance to avoid dereferencing delegated ifp each time.
1569 *
1570 * Note that this is meant to be used only for accounting and policy purposes;
1571 * certain places need to explicitly know the immediate interface type, and
1572 * this macro should not be used there.
1573 */
1574 #define IFNET_IS_WIRED(_ifp) \
1575 ((_ifp)->if_family == IFNET_FAMILY_ETHERNET || \
1576 (_ifp)->if_delegated.family == IFNET_FAMILY_ETHERNET || \
1577 (_ifp)->if_family == IFNET_FAMILY_FIREWIRE || \
1578 (_ifp)->if_delegated.family == IFNET_FAMILY_FIREWIRE)
1579
1580 /*
1581 * Indicate whether or not the immediate WiFi interface is on an infrastructure
1582 * network
1583 */
1584 #define IFNET_IS_WIFI_INFRA(_ifp) \
1585 ((_ifp)->if_family == IFNET_FAMILY_ETHERNET && \
1586 (_ifp)->if_subfamily == IFNET_SUBFAMILY_WIFI && \
1587 !((_ifp)->if_eflags & IFEF_AWDL))
1588
1589 /*
1590 * Indicate whether or not the immediate interface is a companion link
1591 * interface.
1592 */
1593 #define IFNET_IS_COMPANION_LINK(_ifp) \
1594 ((_ifp)->if_family == IFNET_FAMILY_IPSEC && \
1595 ((_ifp)->if_subfamily == IFNET_SUBFAMILY_BLUETOOTH || \
1596 (_ifp)->if_subfamily == IFNET_SUBFAMILY_WIFI || \
1597 (_ifp)->if_subfamily == IFNET_SUBFAMILY_QUICKRELAY || \
1598 (_ifp)->if_subfamily == IFNET_SUBFAMILY_DEFAULT))
1599
1600 /*
1601 * Indicate whether or not the immediate interface, or the interface delegated
1602 * by it, is marked as expensive. The delegated interface is set/cleared
1603 * along with the delegated ifp; we cache the flag for performance to avoid
1604 * dereferencing delegated ifp each time.
1605 *
1606 * Note that this is meant to be used only for policy purposes.
1607 */
1608 #define IFNET_IS_EXPENSIVE(_ifp) \
1609 ((_ifp)->if_eflags & IFEF_EXPENSIVE || \
1610 (_ifp)->if_delegated.expensive)
1611
1612 #define IFNET_IS_LOW_POWER(_ifp) \
1613 (if_low_power_restricted != 0 && \
1614 ((_ifp)->if_xflags & IFXF_LOW_POWER) || \
1615 ((_ifp)->if_delegated.ifp != NULL && \
1616 ((_ifp)->if_delegated.ifp->if_xflags & IFXF_LOW_POWER)))
1617
1618 #define IFNET_IS_CONSTRAINED(_ifp) \
1619 ((_ifp)->if_xflags & IFXF_CONSTRAINED || \
1620 (_ifp)->if_delegated.constrained)
1621
1622 /*
1623 * We don't support AWDL interface delegation.
1624 */
1625 #define IFNET_IS_AWDL_RESTRICTED(_ifp) \
1626 (((_ifp)->if_eflags & (IFEF_AWDL|IFEF_AWDL_RESTRICTED)) == \
1627 (IFEF_AWDL|IFEF_AWDL_RESTRICTED))
1628
1629 #define IFNET_IS_INTCOPROC(_ifp) \
1630 ((_ifp)->if_family == IFNET_FAMILY_ETHERNET && \
1631 (_ifp)->if_subfamily == IFNET_SUBFAMILY_INTCOPROC)
1632
1633 extern struct ifnethead ifnet_head;
1634 extern struct ifnethead ifnet_ordered_head;
1635 extern struct ifnet **ifindex2ifnet;
1636 extern u_int32_t if_sndq_maxlen;
1637 extern u_int32_t if_rcvq_maxlen;
1638 extern int if_index;
1639 extern struct ifaddr **ifnet_addrs;
1640 extern lck_attr_t *ifa_mtx_attr;
1641 extern lck_grp_t *ifa_mtx_grp;
1642 extern lck_grp_t *ifnet_lock_group;
1643 extern lck_attr_t *ifnet_lock_attr;
1644 extern ifnet_t lo_ifp;
1645
1646 extern int if_addmulti(struct ifnet *, const struct sockaddr *,
1647 struct ifmultiaddr **);
1648 extern int if_addmulti_anon(struct ifnet *, const struct sockaddr *,
1649 struct ifmultiaddr **);
1650 extern int if_allmulti(struct ifnet *, int);
1651 extern int if_delmulti(struct ifnet *, const struct sockaddr *);
1652 extern int if_delmulti_ifma(struct ifmultiaddr *);
1653 extern int if_delmulti_anon(struct ifnet *, const struct sockaddr *);
1654 extern void if_down(struct ifnet *);
1655 extern int if_down_all(void);
1656 extern void if_up(struct ifnet *);
1657 __private_extern__ void if_updown(struct ifnet *ifp, int up);
1658 extern int ifioctl(struct socket *, u_long, caddr_t, struct proc *);
1659 extern int ifioctllocked(struct socket *, u_long, caddr_t, struct proc *);
1660 extern struct ifnet *ifunit(const char *);
1661 extern struct ifnet *ifunit_ref(const char *);
1662 extern int ifunit_extract(const char *src, char *dst, size_t dstlen, int *unit);
1663 extern struct ifnet *if_withname(struct sockaddr *);
1664 extern void if_qflush(struct ifnet *, int);
1665 extern void if_qflush_sc(struct ifnet *, mbuf_svc_class_t, u_int32_t,
1666 u_int32_t *, u_int32_t *, int);
1667
1668 extern struct if_clone *if_clone_lookup(const char *, u_int32_t *);
1669 extern int if_clone_attach(struct if_clone *);
1670 extern void if_clone_detach(struct if_clone *);
1671 extern void *if_clone_softc_allocate(const struct if_clone *);
1672 extern void if_clone_softc_deallocate(const struct if_clone *, void *);
1673 extern u_int32_t if_functional_type(struct ifnet *, bool);
1674
1675 extern errno_t if_mcasts_update(struct ifnet *);
1676
1677 typedef enum {
1678 IFNET_LCK_ASSERT_EXCLUSIVE, /* RW: held as writer */
1679 IFNET_LCK_ASSERT_SHARED, /* RW: held as reader */
1680 IFNET_LCK_ASSERT_OWNED, /* RW: writer/reader, MTX: held */
1681 IFNET_LCK_ASSERT_NOTOWNED /* not held */
1682 } ifnet_lock_assert_t;
1683
1684 #define IF_LLADDR(_ifp) \
1685 (LLADDR(SDL(((_ifp)->if_lladdr)->ifa_addr)))
1686
1687 #define IF_INDEX_IN_RANGE(_ind_) ((_ind_) > 0 && \
1688 (unsigned int)(_ind_) <= (unsigned int)if_index)
1689
1690 __private_extern__ void ifnet_lock_assert(struct ifnet *, ifnet_lock_assert_t);
1691 __private_extern__ void ifnet_lock_shared(struct ifnet *ifp);
1692 __private_extern__ void ifnet_lock_exclusive(struct ifnet *ifp);
1693 __private_extern__ void ifnet_lock_done(struct ifnet *ifp);
1694
1695 #if INET
1696 __private_extern__ void if_inetdata_lock_shared(struct ifnet *ifp);
1697 __private_extern__ void if_inetdata_lock_exclusive(struct ifnet *ifp);
1698 __private_extern__ void if_inetdata_lock_done(struct ifnet *ifp);
1699 #endif
1700
1701 __private_extern__ void if_inet6data_lock_shared(struct ifnet *ifp);
1702 __private_extern__ void if_inet6data_lock_exclusive(struct ifnet *ifp);
1703 __private_extern__ void if_inet6data_lock_done(struct ifnet *ifp);
1704
1705 __private_extern__ void ifnet_head_lock_shared(void);
1706 __private_extern__ void ifnet_head_lock_exclusive(void);
1707 __private_extern__ void ifnet_head_done(void);
1708 __private_extern__ void ifnet_head_assert_exclusive(void);
1709
1710 __private_extern__ errno_t ifnet_set_idle_flags_locked(ifnet_t, u_int32_t,
1711 u_int32_t);
1712 __private_extern__ int ifnet_is_attached(struct ifnet *, int refio);
1713 __private_extern__ void ifnet_incr_pending_thread_count(struct ifnet *);
1714 __private_extern__ void ifnet_decr_pending_thread_count(struct ifnet *);
1715 __private_extern__ void ifnet_incr_iorefcnt(struct ifnet *);
1716 __private_extern__ void ifnet_decr_iorefcnt(struct ifnet *);
1717 __private_extern__ boolean_t ifnet_datamov_begin(struct ifnet *);
1718 __private_extern__ void ifnet_datamov_end(struct ifnet *);
1719 __private_extern__ void ifnet_datamov_suspend(struct ifnet *);
1720 __private_extern__ void ifnet_datamov_drain(struct ifnet *);
1721 __private_extern__ void ifnet_datamov_resume(struct ifnet *);
1722 __private_extern__ void ifnet_set_start_cycle(struct ifnet *,
1723 struct timespec *);
1724 __private_extern__ void ifnet_set_poll_cycle(struct ifnet *,
1725 struct timespec *);
1726
1727 __private_extern__ void if_attach_ifa(struct ifnet *, struct ifaddr *);
1728 __private_extern__ void if_attach_link_ifa(struct ifnet *, struct ifaddr *);
1729 __private_extern__ void if_detach_ifa(struct ifnet *, struct ifaddr *);
1730 __private_extern__ void if_detach_link_ifa(struct ifnet *, struct ifaddr *);
1731
1732 __private_extern__ void dlil_if_lock(void);
1733 __private_extern__ void dlil_if_unlock(void);
1734 __private_extern__ void dlil_if_lock_assert(void);
1735
1736 extern struct ifaddr *ifa_ifwithaddr(const struct sockaddr *);
1737 extern struct ifaddr *ifa_ifwithaddr_locked(const struct sockaddr *);
1738 extern struct ifaddr *ifa_ifwithaddr_scoped(const struct sockaddr *,
1739 unsigned int);
1740 extern struct ifaddr *ifa_ifwithaddr_scoped_locked(const struct sockaddr *,
1741 unsigned int);
1742 extern struct ifaddr *ifa_ifwithdstaddr(const struct sockaddr *);
1743 extern struct ifaddr *ifa_ifwithnet(const struct sockaddr *);
1744 extern struct ifaddr *ifa_ifwithnet_scoped(const struct sockaddr *,
1745 unsigned int);
1746 extern struct ifaddr *ifa_ifwithroute(int, const struct sockaddr *,
1747 const struct sockaddr *);
1748 extern struct ifaddr *ifa_ifwithroute_locked(int, const struct sockaddr *,
1749 const struct sockaddr *);
1750 extern struct ifaddr *ifa_ifwithroute_scoped_locked(int,
1751 const struct sockaddr *, const struct sockaddr *, unsigned int);
1752 extern struct ifaddr *ifaof_ifpforaddr_select(const struct sockaddr *, struct ifnet *);
1753 extern struct ifaddr *ifaof_ifpforaddr(const struct sockaddr *, struct ifnet *);
1754 __private_extern__ struct ifaddr *ifa_ifpgetprimary(struct ifnet *, int);
1755 extern void ifa_addref(struct ifaddr *, int);
1756 extern struct ifaddr *ifa_remref(struct ifaddr *, int);
1757 extern void ifa_lock_init(struct ifaddr *);
1758 extern void ifa_lock_destroy(struct ifaddr *);
1759 extern void ifma_addref(struct ifmultiaddr *, int);
1760 extern void ifma_remref(struct ifmultiaddr *);
1761
1762 extern void ifa_init(void);
1763
1764 __private_extern__ struct in_ifaddr *ifa_foraddr(unsigned int);
1765 __private_extern__ struct in_ifaddr *ifa_foraddr_scoped(unsigned int,
1766 unsigned int);
1767
1768 struct ifreq;
1769 extern errno_t ifnet_getset_opportunistic(struct ifnet *, u_long,
1770 struct ifreq *, struct proc *);
1771 extern int ifnet_get_throttle(struct ifnet *, u_int32_t *);
1772 extern int ifnet_set_throttle(struct ifnet *, u_int32_t);
1773 extern errno_t ifnet_getset_log(struct ifnet *, u_long,
1774 struct ifreq *, struct proc *);
1775 extern int ifnet_set_log(struct ifnet *, int32_t, uint32_t, int32_t, int32_t);
1776 extern int ifnet_get_log(struct ifnet *, int32_t *, uint32_t *, int32_t *,
1777 int32_t *);
1778 extern int ifnet_notify_address(struct ifnet *, int);
1779 extern void ifnet_notify_data_threshold(struct ifnet *);
1780
1781 #define IF_AFDATA_RLOCK if_afdata_rlock
1782 #define IF_AFDATA_RUNLOCK if_afdata_unlock
1783 #define IF_AFDATA_WLOCK if_afdata_wlock
1784 #define IF_AFDATA_WUNLOCK if_afdata_unlock
1785 #define IF_AFDATA_WLOCK_ASSERT if_afdata_wlock_assert
1786 #define IF_AFDATA_LOCK_ASSERT if_afdata_lock_assert
1787 #define IF_AFDATA_UNLOCK_ASSERT if_afdata_unlock_assert
1788
1789 static inline void
1790 if_afdata_rlock(struct ifnet *ifp, int af)
1791 {
1792 switch (af) {
1793 #if INET
1794 case AF_INET:
1795 lck_rw_lock_shared(&ifp->if_inetdata_lock);
1796 break;
1797 #endif
1798 case AF_INET6:
1799 lck_rw_lock_shared(&ifp->if_inet6data_lock);
1800 break;
1801 default:
1802 VERIFY(0);
1803 /* NOTREACHED */
1804 }
1805 return;
1806 }
1807
1808 static inline void
1809 if_afdata_runlock(struct ifnet *ifp, int af)
1810 {
1811 switch (af) {
1812 #if INET
1813 case AF_INET:
1814 lck_rw_done(&ifp->if_inetdata_lock);
1815 break;
1816 #endif
1817 case AF_INET6:
1818 lck_rw_done(&ifp->if_inet6data_lock);
1819 break;
1820 default:
1821 VERIFY(0);
1822 /* NOTREACHED */
1823 }
1824 return;
1825 }
1826
1827 static inline void
1828 if_afdata_wlock(struct ifnet *ifp, int af)
1829 {
1830 switch (af) {
1831 #if INET
1832 case AF_INET:
1833 lck_rw_lock_exclusive(&ifp->if_inetdata_lock);
1834 break;
1835 #endif
1836 case AF_INET6:
1837 lck_rw_lock_exclusive(&ifp->if_inet6data_lock);
1838 break;
1839 default:
1840 VERIFY(0);
1841 /* NOTREACHED */
1842 }
1843 return;
1844 }
1845
1846 static inline void
1847 if_afdata_unlock(struct ifnet *ifp, int af)
1848 {
1849 switch (af) {
1850 #if INET
1851 case AF_INET:
1852 lck_rw_done(&ifp->if_inetdata_lock);
1853 break;
1854 #endif
1855 case AF_INET6:
1856 lck_rw_done(&ifp->if_inet6data_lock);
1857 break;
1858 default:
1859 VERIFY(0);
1860 /* NOTREACHED */
1861 }
1862 return;
1863 }
1864
1865 static inline void
1866 if_afdata_wlock_assert(struct ifnet *ifp, int af)
1867 {
1868 #if !MACH_ASSERT
1869 #pragma unused(ifp)
1870 #endif
1871 switch (af) {
1872 #if INET
1873 case AF_INET:
1874 LCK_RW_ASSERT(&ifp->if_inetdata_lock, LCK_RW_ASSERT_EXCLUSIVE);
1875 break;
1876 #endif
1877 case AF_INET6:
1878 LCK_RW_ASSERT(&ifp->if_inet6data_lock, LCK_RW_ASSERT_EXCLUSIVE);
1879 break;
1880 default:
1881 VERIFY(0);
1882 /* NOTREACHED */
1883 }
1884 return;
1885 }
1886
1887 static inline void
1888 if_afdata_unlock_assert(struct ifnet *ifp, int af)
1889 {
1890 #if !MACH_ASSERT
1891 #pragma unused(ifp)
1892 #endif
1893 switch (af) {
1894 #if INET
1895 case AF_INET:
1896 LCK_RW_ASSERT(&ifp->if_inetdata_lock, LCK_RW_ASSERT_NOTHELD);
1897 break;
1898 #endif
1899 case AF_INET6:
1900 LCK_RW_ASSERT(&ifp->if_inet6data_lock, LCK_RW_ASSERT_NOTHELD);
1901 break;
1902 default:
1903 VERIFY(0);
1904 /* NOTREACHED */
1905 }
1906 return;
1907 }
1908
1909 static inline void
1910 if_afdata_lock_assert(struct ifnet *ifp, int af)
1911 {
1912 #if !MACH_ASSERT
1913 #pragma unused(ifp)
1914 #endif
1915 switch (af) {
1916 #if INET
1917 case AF_INET:
1918 LCK_RW_ASSERT(&ifp->if_inetdata_lock, LCK_RW_ASSERT_HELD);
1919 break;
1920 #endif
1921 case AF_INET6:
1922 LCK_RW_ASSERT(&ifp->if_inet6data_lock, LCK_RW_ASSERT_HELD);
1923 break;
1924 default:
1925 VERIFY(0);
1926 /* NOTREACHED */
1927 }
1928 return;
1929 }
1930
1931 struct in6_addr;
1932 __private_extern__ struct in6_ifaddr *ifa_foraddr6(struct in6_addr *);
1933 __private_extern__ struct in6_ifaddr *ifa_foraddr6_scoped(struct in6_addr *,
1934 unsigned int);
1935
1936 __private_extern__ void if_data_internal_to_if_data(struct ifnet *ifp,
1937 const struct if_data_internal *if_data_int, struct if_data *if_data);
1938 __private_extern__ void if_data_internal_to_if_data64(struct ifnet *ifp,
1939 const struct if_data_internal *if_data_int, struct if_data64 *if_data64);
1940 __private_extern__ void if_copy_traffic_class(struct ifnet *ifp,
1941 struct if_traffic_class *if_tc);
1942 __private_extern__ void if_copy_data_extended(struct ifnet *ifp,
1943 struct if_data_extended *if_de);
1944 __private_extern__ void if_copy_packet_stats(struct ifnet *ifp,
1945 struct if_packet_stats *if_ps);
1946 __private_extern__ void if_copy_rxpoll_stats(struct ifnet *ifp,
1947 struct if_rxpoll_stats *if_rs);
1948 __private_extern__ void if_copy_netif_stats(struct ifnet *ifp,
1949 struct if_netif_stats *if_ns);
1950
1951 __private_extern__ struct rtentry *ifnet_cached_rtlookup_inet(struct ifnet *,
1952 struct in_addr);
1953 __private_extern__ struct rtentry *ifnet_cached_rtlookup_inet6(struct ifnet *,
1954 struct in6_addr *);
1955
1956 __private_extern__ u_int32_t if_get_protolist(struct ifnet * ifp,
1957 u_int32_t *protolist, u_int32_t count);
1958 __private_extern__ void if_free_protolist(u_int32_t *list);
1959 __private_extern__ errno_t if_state_update(struct ifnet *,
1960 struct if_interface_state *);
1961 __private_extern__ void if_get_state(struct ifnet *,
1962 struct if_interface_state *);
1963 __private_extern__ errno_t if_probe_connectivity(struct ifnet *ifp,
1964 u_int32_t conn_probe);
1965 __private_extern__ void if_lqm_update(struct ifnet *, int32_t, int);
1966 __private_extern__ void ifnet_update_sndq(struct ifclassq *, cqev_t);
1967 __private_extern__ void ifnet_update_rcv(struct ifnet *, cqev_t);
1968
1969 __private_extern__ void ifnet_flowadv(uint32_t);
1970
1971 __private_extern__ errno_t ifnet_set_input_bandwidths(struct ifnet *,
1972 struct if_bandwidths *);
1973 __private_extern__ errno_t ifnet_set_output_bandwidths(struct ifnet *,
1974 struct if_bandwidths *, boolean_t);
1975 __private_extern__ u_int64_t ifnet_output_linkrate(struct ifnet *);
1976 __private_extern__ u_int64_t ifnet_input_linkrate(struct ifnet *);
1977
1978 __private_extern__ errno_t ifnet_set_input_latencies(struct ifnet *,
1979 struct if_latencies *);
1980 __private_extern__ errno_t ifnet_set_output_latencies(struct ifnet *,
1981 struct if_latencies *, boolean_t);
1982
1983 __private_extern__ void ifnet_clear_netagent(uuid_t);
1984
1985 __private_extern__ int ifnet_set_netsignature(struct ifnet *, uint8_t,
1986 uint8_t, uint16_t, uint8_t *);
1987 __private_extern__ int ifnet_get_netsignature(struct ifnet *, uint8_t,
1988 uint8_t *, uint16_t *, uint8_t *);
1989
1990 struct ipv6_prefix;
1991 __private_extern__ int ifnet_set_nat64prefix(struct ifnet *,
1992 struct ipv6_prefix *);
1993 __private_extern__ int ifnet_get_nat64prefix(struct ifnet *,
1994 struct ipv6_prefix *);
1995
1996 /* Required exclusive ifnet_head lock */
1997 __private_extern__ void ifnet_remove_from_ordered_list(struct ifnet *);
1998
1999 __private_extern__ void ifnet_increment_generation(struct ifnet *);
2000 __private_extern__ u_int32_t ifnet_get_generation(struct ifnet *);
2001
2002 /* Adding and deleting netagents will take ifnet lock */
2003 __private_extern__ int if_add_netagent(struct ifnet *, uuid_t);
2004 __private_extern__ int if_add_netagent_locked(struct ifnet *, uuid_t);
2005 __private_extern__ int if_delete_netagent(struct ifnet *, uuid_t);
2006 __private_extern__ boolean_t if_check_netagent(struct ifnet *, uuid_t);
2007
2008
2009 extern int if_set_qosmarking_mode(struct ifnet *, u_int32_t);
2010 __private_extern__ uint32_t ifnet_mbuf_packetpreamblelen(struct ifnet *);
2011 __private_extern__ void intf_event_enqueue_nwk_wq_entry(struct ifnet *ifp,
2012 struct sockaddr *addrp, uint32_t intf_event_code);
2013 __private_extern__ void ifnet_update_stats_per_flow(struct ifnet_stats_per_flow *,
2014 struct ifnet *);
2015 __private_extern__ int if_get_tcp_kao_max(struct ifnet *);
2016 #if XNU_TARGET_OS_OSX
2017 __private_extern__ errno_t ifnet_framer_stub(struct ifnet *, struct mbuf **,
2018 const struct sockaddr *, const char *, const char *, u_int32_t *,
2019 u_int32_t *);
2020 #endif /* XNU_TARGET_OS_OSX */
2021 __private_extern__ void ifnet_enqueue_multi_setup(struct ifnet *, uint16_t,
2022 uint16_t);
2023 __private_extern__ errno_t ifnet_enqueue_mbuf(struct ifnet *, struct mbuf *,
2024 boolean_t, boolean_t *);
2025 __private_extern__ errno_t ifnet_enqueue_mbuf_chain(struct ifnet *,
2026 struct mbuf *, struct mbuf *, uint32_t, uint32_t, boolean_t, boolean_t *);
2027 __private_extern__ int ifnet_enqueue_netem(void *handle, pktsched_pkt_t *pkts,
2028 uint32_t n_pkts);
2029
2030 extern int if_low_power_verbose;
2031 extern int if_low_power_restricted;
2032 extern void if_low_power_evhdlr_init(void);
2033 extern int if_set_low_power(struct ifnet *, bool);
2034 extern u_int32_t if_set_eflags(ifnet_t, u_int32_t);
2035 extern void if_clear_eflags(ifnet_t, u_int32_t);
2036 extern u_int32_t if_set_xflags(ifnet_t, u_int32_t);
2037 extern void if_clear_xflags(ifnet_t, u_int32_t);
2038
2039 #endif /* BSD_KERNEL_PRIVATE */
2040 #ifdef XNU_KERNEL_PRIVATE
2041 /* for uuid.c */
2042 __private_extern__ int uuid_get_ethernet(u_int8_t *);
2043 #endif /* XNU_KERNEL_PRIVATE */
2044 #endif /* !_NET_IF_VAR_H_ */
mirror of XNU