1 | /* |
2 | * Copyright (c) 2000-2023 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) 1980, 1986, 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.c 8.3 (Berkeley) 1/4/94 |
61 | * $FreeBSD: src/sys/net/if.c,v 1.85.2.9 2001/07/24 19:10:17 brooks Exp $ |
62 | */ |
63 | /* |
64 | * NOTICE: This file was modified by SPARTA, Inc. in 2006 to introduce |
65 | * support for mandatory and extensible security protections. This notice |
66 | * is included in support of clause 2.2 (b) of the Apple Public License, |
67 | * Version 2.0. |
68 | */ |
69 | |
70 | #include <kern/locks.h> |
71 | |
72 | #include <sys/param.h> |
73 | #include <sys/malloc.h> |
74 | #include <sys/mbuf.h> |
75 | #include <sys/systm.h> |
76 | #include <sys/proc.h> |
77 | #include <sys/socket.h> |
78 | #include <sys/socketvar.h> |
79 | #include <sys/protosw.h> |
80 | #include <sys/kernel.h> |
81 | #include <sys/sockio.h> |
82 | #include <sys/syslog.h> |
83 | #include <sys/sysctl.h> |
84 | #include <sys/mcache.h> |
85 | #include <sys/kauth.h> |
86 | #include <sys/priv.h> |
87 | #include <kern/zalloc.h> |
88 | #include <mach/boolean.h> |
89 | |
90 | #include <machine/endian.h> |
91 | |
92 | #include <pexpert/pexpert.h> |
93 | |
94 | #include <net/if.h> |
95 | #include <net/if_arp.h> |
96 | #include <net/if_dl.h> |
97 | #include <net/if_types.h> |
98 | #include <net/if_var.h> |
99 | #include <net/if_media.h> |
100 | #include <net/if_ppp.h> |
101 | #include <net/ethernet.h> |
102 | #include <net/network_agent.h> |
103 | #include <net/pktsched/pktsched_netem.h> |
104 | #include <net/radix.h> |
105 | #include <net/route.h> |
106 | #include <net/dlil.h> |
107 | #include <net/nwk_wq.h> |
108 | |
109 | #include <sys/domain.h> |
110 | #include <libkern/OSAtomic.h> |
111 | |
112 | #if INET |
113 | #include <netinet/in.h> |
114 | #include <netinet/in_var.h> |
115 | #include <netinet/in_tclass.h> |
116 | #include <netinet/ip_var.h> |
117 | #include <netinet/ip.h> |
118 | #include <netinet/ip6.h> |
119 | #include <netinet/ip_var.h> |
120 | #include <netinet/tcp.h> |
121 | #include <netinet/tcp_var.h> |
122 | #include <netinet/udp.h> |
123 | #include <netinet/udp_var.h> |
124 | #include <netinet6/in6_var.h> |
125 | #include <netinet6/in6_ifattach.h> |
126 | #include <netinet6/ip6_var.h> |
127 | #include <netinet6/nd6.h> |
128 | #endif /* INET */ |
129 | |
130 | #if SKYWALK |
131 | #include <skywalk/nexus/netif/nx_netif.h> |
132 | #endif /* SKYWALK */ |
133 | |
134 | #include <net/sockaddr_utils.h> |
135 | |
136 | #include <os/log.h> |
137 | |
138 | #include <IOKit/IOBSD.h> |
139 | |
140 | /* |
141 | * System initialization |
142 | */ |
143 | |
144 | extern char *proc_name_address(void *); |
145 | |
146 | /* Lock group and attribute for ifaddr lock */ |
147 | LCK_ATTR_DECLARE(ifa_mtx_attr, 0, 0); |
148 | LCK_GRP_DECLARE(ifa_mtx_grp, "ifaddr" ); |
149 | |
150 | static int ifioctl_ifreq(struct socket *, u_long, struct ifreq *, |
151 | struct proc *); |
152 | static int ifioctl_ifconf(u_long, caddr_t); |
153 | static int ifioctl_ifclone(u_long, caddr_t); |
154 | static int ifioctl_iforder(u_long, caddr_t); |
155 | static int ifioctl_ifdesc(struct ifnet *, u_long, caddr_t, struct proc *); |
156 | static int ifioctl_linkparams(struct ifnet *, u_long, caddr_t, struct proc *); |
157 | static int ifioctl_qstats(struct ifnet *, u_long, caddr_t); |
158 | static int ifioctl_throttle(struct ifnet *, u_long, caddr_t, struct proc *); |
159 | static int ifioctl_netsignature(struct ifnet *, u_long, caddr_t); |
160 | static int ifconf(u_long cmd, user_addr_t ifrp, int * ret_space); |
161 | __private_extern__ void link_rtrequest(int, struct rtentry *, struct sockaddr *); |
162 | void if_rtproto_del(struct ifnet *ifp, int protocol); |
163 | |
164 | static int if_addmulti_common(struct ifnet *, const struct sockaddr *, |
165 | struct ifmultiaddr **, int); |
166 | static int if_delmulti_common(struct ifmultiaddr *, struct ifnet *, |
167 | const struct sockaddr *, int); |
168 | static struct ifnet *ifunit_common(const char *, boolean_t); |
169 | |
170 | static int if_rtmtu(struct radix_node *, void *); |
171 | static void if_rtmtu_update(struct ifnet *); |
172 | |
173 | static int if_clone_list(int, int *, user_addr_t); |
174 | |
175 | MALLOC_DEFINE(M_IFADDR, "ifaddr" , "interface address" ); |
176 | |
177 | struct ifnethead ifnet_head = TAILQ_HEAD_INITIALIZER(ifnet_head); |
178 | |
179 | /* ifnet_ordered_head and if_ordered_count are protected by the ifnet_head lock */ |
180 | struct ifnethead ifnet_ordered_head = TAILQ_HEAD_INITIALIZER(ifnet_ordered_head); |
181 | static u_int32_t if_ordered_count = 0; |
182 | |
183 | static int if_cloners_count; |
184 | LIST_HEAD(, if_clone) if_cloners = LIST_HEAD_INITIALIZER(if_cloners); |
185 | |
186 | static struct ifaddr *ifa_ifwithnet_common(const struct sockaddr *, |
187 | unsigned int); |
188 | static void if_attach_ifa_common(struct ifnet *, struct ifaddr *, int); |
189 | static void if_detach_ifa_common(struct ifnet *, struct ifaddr *, int); |
190 | |
191 | static void if_attach_ifma(struct ifnet *, struct ifmultiaddr *, int); |
192 | static int if_detach_ifma(struct ifnet *, struct ifmultiaddr *, int); |
193 | |
194 | static struct ifmultiaddr *ifma_alloc(zalloc_flags_t); |
195 | static void ifma_free(struct ifmultiaddr *); |
196 | static void ifma_trace(struct ifmultiaddr *, int); |
197 | |
198 | #if DEBUG |
199 | static TUNABLE(bool, ifma_debug, "ifma_debug" , true); /* debugging (enabled) */ |
200 | #else |
201 | static TUNABLE(bool, ifma_debug, "ifma_debug" , false); /* debugging (disabled) */ |
202 | #endif /* !DEBUG */ |
203 | static struct zone *ifma_zone; /* zone for ifmultiaddr */ |
204 | |
205 | #define IFMA_TRACE_HIST_SIZE 32 /* size of trace history */ |
206 | |
207 | /* For gdb */ |
208 | __private_extern__ unsigned int ifma_trace_hist_size = IFMA_TRACE_HIST_SIZE; |
209 | |
210 | struct ifmultiaddr_dbg { |
211 | struct ifmultiaddr ifma; /* ifmultiaddr */ |
212 | u_int16_t ifma_refhold_cnt; /* # of ref */ |
213 | u_int16_t ifma_refrele_cnt; /* # of rele */ |
214 | /* |
215 | * Circular lists of ifa_addref and ifa_remref callers. |
216 | */ |
217 | ctrace_t ifma_refhold[IFMA_TRACE_HIST_SIZE]; |
218 | ctrace_t ifma_refrele[IFMA_TRACE_HIST_SIZE]; |
219 | /* |
220 | * Trash list linkage |
221 | */ |
222 | TAILQ_ENTRY(ifmultiaddr_dbg) ifma_trash_link; |
223 | }; |
224 | |
225 | /* List of trash ifmultiaddr entries protected by ifma_trash_lock */ |
226 | static TAILQ_HEAD(, ifmultiaddr_dbg) ifma_trash_head; |
227 | static LCK_MTX_DECLARE_ATTR(ifma_trash_lock, &ifa_mtx_grp, &ifa_mtx_attr); |
228 | |
229 | #define IFMA_ZONE_MAX 64 /* maximum elements in zone */ |
230 | #define IFMA_ZONE_NAME "ifmultiaddr" /* zone name */ |
231 | |
232 | /* |
233 | * XXX: declare here to avoid to include many inet6 related files.. |
234 | * should be more generalized? |
235 | */ |
236 | extern void nd6_setmtu(struct ifnet *); |
237 | |
238 | SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "Link layers" ); |
239 | SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW | CTLFLAG_LOCKED, 0, |
240 | "Generic link-management" ); |
241 | |
242 | SYSCTL_DECL(_net_link_generic_system); |
243 | |
244 | static uint32_t if_verbose = 0; |
245 | SYSCTL_INT(_net_link_generic_system, OID_AUTO, if_verbose, |
246 | CTLFLAG_RW | CTLFLAG_LOCKED, &if_verbose, 0, "" ); |
247 | |
248 | #if (DEBUG || DEVELOPMENT) |
249 | static uint32_t default_tcp_kao_max = 0; |
250 | SYSCTL_INT(_net_link_generic_system, OID_AUTO, default_tcp_kao_max, |
251 | CTLFLAG_RW | CTLFLAG_LOCKED, &default_tcp_kao_max, 0, "" ); |
252 | #else |
253 | static const uint32_t default_tcp_kao_max = 0; |
254 | #endif /* (DEBUG || DEVELOPMENT) */ |
255 | |
256 | u_int32_t companion_link_sock_buffer_limit = 0; |
257 | |
258 | static int |
259 | sysctl_set_companion_link_sock_buf_limit SYSCTL_HANDLER_ARGS |
260 | { |
261 | #pragma unused(arg1, arg2) |
262 | int error, tmp = companion_link_sock_buffer_limit; |
263 | error = sysctl_handle_int(oidp, arg1: &tmp, arg2: 0, req); |
264 | if (tmp < 0) { |
265 | return EINVAL; |
266 | } |
267 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
268 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
269 | return error; |
270 | } |
271 | |
272 | u_int32_t new_limit = tmp; |
273 | if (new_limit == companion_link_sock_buffer_limit) { |
274 | return 0; |
275 | } |
276 | |
277 | bool recover = new_limit == 0 ? true : false; |
278 | if (recover) { |
279 | error = inp_recover_companion_link(pcbinfo: &tcbinfo); |
280 | } else { |
281 | error = inp_limit_companion_link(pcbinfo: &tcbinfo, limit: new_limit); |
282 | } |
283 | if (!error) { |
284 | companion_link_sock_buffer_limit = new_limit; |
285 | } |
286 | return error; |
287 | } |
288 | |
289 | SYSCTL_PROC(_net_link_generic_system, OID_AUTO, companion_sndbuf_limit, |
290 | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY, |
291 | &companion_link_sock_buffer_limit, 0, sysctl_set_companion_link_sock_buf_limit, |
292 | "I" , "set sock send buffer limit of connections using companion links" ); |
293 | |
294 | |
295 | TUNABLE(bool, intcoproc_unrestricted, "intcoproc_unrestricted" , false); |
296 | |
297 | SYSCTL_NODE(_net_link_generic_system, OID_AUTO, management, |
298 | CTLFLAG_RW | CTLFLAG_LOCKED, 0, "management interface" ); |
299 | |
300 | TUNABLE_WRITEABLE(int, if_management_verbose, "management_data_unrestricted" , 0); |
301 | |
302 | SYSCTL_INT(_net_link_generic_system_management, OID_AUTO, verbose, |
303 | CTLFLAG_RW | CTLFLAG_LOCKED, &if_management_verbose, 0, "" ); |
304 | |
305 | /* |
306 | * boot-args to disable entitlement check for data transfer on management interface |
307 | */ |
308 | TUNABLE_DEV_WRITEABLE(bool, management_data_unrestricted, "management_data_unrestricted" , false); |
309 | |
310 | #if DEBUG || DEVELOPMENT |
311 | #define MANAGEMENT_CTLFLAG_ACCESS CTLFLAG_RW |
312 | #else |
313 | #define MANAGEMENT_CTLFLAG_ACCESS CTLFLAG_RD |
314 | #endif |
315 | |
316 | static int |
317 | sysctl_management_data_unrestricted SYSCTL_HANDLER_ARGS |
318 | { |
319 | #pragma unused(oidp, arg1, arg2) |
320 | int val = management_data_unrestricted; |
321 | |
322 | int error = sysctl_handle_int(oidp, arg1: &val, arg2: 0, req); |
323 | #if DEBUG || DEVELOPMENT |
324 | if (error == 0 && req->newptr != USER_ADDR_NULL) { |
325 | management_data_unrestricted = (val == 0) ? false : true; |
326 | if (if_management_verbose > 0) { |
327 | os_log(OS_LOG_DEFAULT, |
328 | "sysctl_management_data_unrestricted val %d -> management_data_unrestricted %d" , |
329 | val, management_data_unrestricted); |
330 | } |
331 | } |
332 | #endif /* DEBUG || DEVELOPMENT */ |
333 | return error; |
334 | } |
335 | |
336 | SYSCTL_PROC(_net_link_generic_system_management, OID_AUTO, data_unrestricted, |
337 | CTLTYPE_INT | MANAGEMENT_CTLFLAG_ACCESS | CTLFLAG_LOCKED, 0, 0, |
338 | sysctl_management_data_unrestricted, "I" , "" ); |
339 | |
340 | /* |
341 | * boot-args to disable entitlement restrictions to control management interfaces |
342 | */ |
343 | TUNABLE_DEV_WRITEABLE(bool, management_control_unrestricted, "management_control_unrestricted" , false); |
344 | |
345 | static int |
346 | sysctl_management_control_unrestricted SYSCTL_HANDLER_ARGS |
347 | { |
348 | #pragma unused(oidp, arg1, arg2) |
349 | int val = management_control_unrestricted; |
350 | |
351 | int error = sysctl_handle_int(oidp, arg1: &val, arg2: 0, req); |
352 | #if DEBUG || DEVELOPMENT |
353 | if (error == 0 && req->newptr != USER_ADDR_NULL) { |
354 | management_control_unrestricted = (val == 0) ? false : true; |
355 | if (if_management_verbose > 0) { |
356 | os_log(OS_LOG_DEFAULT, |
357 | "sysctl_management_control_unrestricted val %d -> management_control_unrestricted %d" , |
358 | val, management_control_unrestricted); |
359 | } |
360 | } |
361 | #endif /* DEBUG || DEVELOPMENT */ |
362 | return error; |
363 | } |
364 | |
365 | SYSCTL_PROC(_net_link_generic_system_management, OID_AUTO, control_unrestricted, |
366 | CTLTYPE_INT | MANAGEMENT_CTLFLAG_ACCESS | CTLFLAG_LOCKED, 0, 0, |
367 | sysctl_management_control_unrestricted, "I" , "" ); |
368 | |
369 | #undef MANAGEMENT_CTLFLAG_ACCESS |
370 | |
371 | /* The following is set as soon as IFNET_SUBFAMILY_MANAGEMENT is used */ |
372 | bool if_management_interface_check_needed = false; |
373 | |
374 | /* Eventhandler context for interface events */ |
375 | struct eventhandler_lists_ctxt ifnet_evhdlr_ctxt; |
376 | |
377 | void |
378 | ifa_init(void) |
379 | { |
380 | size_t ifma_size = (ifma_debug == 0) ? sizeof(struct ifmultiaddr) : |
381 | sizeof(struct ifmultiaddr_dbg); |
382 | |
383 | ifma_zone = zone_create(IFMA_ZONE_NAME, size: ifma_size, flags: ZC_NONE); |
384 | TAILQ_INIT(&ifma_trash_head); |
385 | } |
386 | |
387 | /* |
388 | * Network interface utility routines. |
389 | * |
390 | * Routines with ifa_ifwith* names take sockaddr *'s as |
391 | * parameters. |
392 | */ |
393 | |
394 | int if_index; |
395 | uint32_t ifindex2ifnetcount; |
396 | struct ifaddr **ifnet_addrs; |
397 | struct ifnet **ifindex2ifnet; |
398 | |
399 | __private_extern__ void |
400 | if_attach_ifa(struct ifnet *ifp, struct ifaddr *ifa) |
401 | { |
402 | if_attach_ifa_common(ifp, ifa, 0); |
403 | } |
404 | |
405 | __private_extern__ void |
406 | if_attach_link_ifa(struct ifnet *ifp, struct ifaddr *ifa) |
407 | { |
408 | if_attach_ifa_common(ifp, ifa, 1); |
409 | } |
410 | |
411 | static void |
412 | if_attach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) |
413 | { |
414 | ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE); |
415 | IFA_LOCK_ASSERT_HELD(ifa); |
416 | |
417 | if (ifa->ifa_ifp != ifp) { |
418 | panic("%s: Mismatch ifa_ifp=%p != ifp=%p" , __func__, |
419 | ifa->ifa_ifp, ifp); |
420 | /* NOTREACHED */ |
421 | } else if (ifa->ifa_debug & IFD_ATTACHED) { |
422 | panic("%s: Attempt to attach an already attached ifa=%p" , |
423 | __func__, ifa); |
424 | /* NOTREACHED */ |
425 | } else if (link && !(ifa->ifa_debug & IFD_LINK)) { |
426 | panic("%s: Unexpected non-link address ifa=%p" , __func__, ifa); |
427 | /* NOTREACHED */ |
428 | } else if (!link && (ifa->ifa_debug & IFD_LINK)) { |
429 | panic("%s: Unexpected link address ifa=%p" , __func__, ifa); |
430 | /* NOTREACHED */ |
431 | } |
432 | ifa_addref(ifa); |
433 | ifa->ifa_debug |= IFD_ATTACHED; |
434 | |
435 | if (link) { |
436 | TAILQ_INSERT_HEAD(&ifp->if_addrhead, ifa, ifa_link); |
437 | } else { |
438 | TAILQ_INSERT_TAIL(&ifp->if_addrhead, ifa, ifa_link); |
439 | } |
440 | |
441 | #if SKYWALK |
442 | SK_NXS_MS_IF_ADDR_GENCNT_INC(ifp); |
443 | #endif /* SKYWALK */ |
444 | } |
445 | |
446 | __private_extern__ void |
447 | if_detach_ifa(struct ifnet *ifp, struct ifaddr *ifa) |
448 | { |
449 | if_detach_ifa_common(ifp, ifa, 0); |
450 | } |
451 | |
452 | __private_extern__ void |
453 | if_detach_link_ifa(struct ifnet *ifp, struct ifaddr *ifa) |
454 | { |
455 | if_detach_ifa_common(ifp, ifa, 1); |
456 | } |
457 | |
458 | static void |
459 | if_detach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) |
460 | { |
461 | ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE); |
462 | IFA_LOCK_ASSERT_HELD(ifa); |
463 | |
464 | if (link && !(ifa->ifa_debug & IFD_LINK)) { |
465 | panic("%s: Unexpected non-link address ifa=%p" , __func__, ifa); |
466 | /* NOTREACHED */ |
467 | } else if (link && ifa != TAILQ_FIRST(&ifp->if_addrhead)) { |
468 | panic("%s: Link address ifa=%p not first" , __func__, ifa); |
469 | /* NOTREACHED */ |
470 | } else if (!link && (ifa->ifa_debug & IFD_LINK)) { |
471 | panic("%s: Unexpected link address ifa=%p" , __func__, ifa); |
472 | /* NOTREACHED */ |
473 | } else if (!(ifa->ifa_debug & IFD_ATTACHED)) { |
474 | panic("%s: Attempt to detach an unattached address ifa=%p" , |
475 | __func__, ifa); |
476 | /* NOTREACHED */ |
477 | } else if (ifa->ifa_ifp != ifp) { |
478 | panic("%s: Mismatch ifa_ifp=%p, ifp=%p" , __func__, |
479 | ifa->ifa_ifp, ifp); |
480 | /* NOTREACHED */ |
481 | } else if (ifa->ifa_debug & IFD_DEBUG) { |
482 | struct ifaddr *ifa2; |
483 | TAILQ_FOREACH(ifa2, &ifp->if_addrhead, ifa_link) { |
484 | if (ifa2 == ifa) { |
485 | break; |
486 | } |
487 | } |
488 | if (ifa2 != ifa) { |
489 | panic("%s: Attempt to detach a stray address ifa=%p" , |
490 | __func__, ifa); |
491 | /* NOTREACHED */ |
492 | } |
493 | } |
494 | TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link); |
495 | ifa->ifa_debug &= ~IFD_ATTACHED; |
496 | ifa_remref(ifa); |
497 | |
498 | #if SKYWALK |
499 | SK_NXS_MS_IF_ADDR_GENCNT_INC(ifp); |
500 | #endif /* SKYWALK */ |
501 | } |
502 | |
503 | #define INITIAL_IF_INDEXLIM 8 |
504 | |
505 | /* |
506 | * Function: if_next_index |
507 | * Purpose: |
508 | * Return the next available interface index. |
509 | * Grow the ifnet_addrs[] and ifindex2ifnet[] arrays to accomodate the |
510 | * added entry when necessary. |
511 | * |
512 | * Note: |
513 | * ifnet_addrs[] is indexed by (if_index - 1), whereas |
514 | * ifindex2ifnet[] is indexed by ifp->if_index. That requires us to |
515 | * always allocate one extra element to hold ifindex2ifnet[0], which |
516 | * is unused. |
517 | */ |
518 | int if_next_index(void); |
519 | |
520 | __private_extern__ int |
521 | if_next_index(void) |
522 | { |
523 | static int if_indexlim = 0; |
524 | int new_index; |
525 | |
526 | /* |
527 | * Although we are returning an integer, |
528 | * ifnet's if_index is a uint16_t which means |
529 | * that's our upper bound. |
530 | */ |
531 | if (if_index >= UINT16_MAX) { |
532 | return -1; |
533 | } |
534 | new_index = ++if_index; |
535 | if (if_index > if_indexlim) { |
536 | unsigned n; |
537 | int new_if_indexlim; |
538 | caddr_t new_ifnet_addrs; |
539 | caddr_t new_ifindex2ifnet; |
540 | caddr_t old_ifnet_addrs; |
541 | size_t old_ifnet_size; |
542 | |
543 | old_ifnet_addrs = (caddr_t)ifnet_addrs; |
544 | old_ifnet_size = (size_t)(2 * if_indexlim + 1); |
545 | if (ifnet_addrs == NULL) { |
546 | new_if_indexlim = INITIAL_IF_INDEXLIM; |
547 | } else { |
548 | new_if_indexlim = if_indexlim << 1; |
549 | } |
550 | |
551 | /* allocate space for the larger arrays */ |
552 | n = (2 * new_if_indexlim + 1); |
553 | new_ifnet_addrs = (caddr_t)kalloc_type(caddr_t, n, Z_WAITOK | Z_ZERO); |
554 | if (new_ifnet_addrs == NULL) { |
555 | --if_index; |
556 | return -1; |
557 | } |
558 | |
559 | new_ifindex2ifnet = new_ifnet_addrs + new_if_indexlim * sizeof(caddr_t); |
560 | if (ifnet_addrs != NULL) { |
561 | /* copy the existing data */ |
562 | bcopy(src: ifnet_addrs, dst: new_ifnet_addrs, n: if_indexlim * sizeof(caddr_t)); |
563 | bcopy(src: ifindex2ifnet, dst: new_ifindex2ifnet, n: (if_indexlim + 1) * sizeof(caddr_t)); |
564 | } |
565 | |
566 | /* switch to the new tables and size */ |
567 | ifnet_addrs = (struct ifaddr **)(void *)new_ifnet_addrs; |
568 | ifindex2ifnet = (struct ifnet **)(void *)new_ifindex2ifnet; |
569 | if_indexlim = new_if_indexlim; |
570 | ifindex2ifnetcount = if_indexlim + 1; |
571 | |
572 | /* release the old data */ |
573 | if (old_ifnet_addrs != NULL) { |
574 | void *old_ifnet_addrs_p = (void *)old_ifnet_addrs; |
575 | kfree_type(caddr_t, old_ifnet_size, old_ifnet_addrs_p); |
576 | } |
577 | } |
578 | return new_index; |
579 | } |
580 | |
581 | /* |
582 | * Create a clone network interface. |
583 | */ |
584 | static int |
585 | if_clone_create(char *name, int len, void *params) |
586 | { |
587 | struct if_clone *ifc; |
588 | struct ifnet *ifp; |
589 | char *dp; |
590 | int wildcard; |
591 | u_int32_t bytoff, bitoff; |
592 | u_int32_t unit; |
593 | int err; |
594 | |
595 | ifc = if_clone_lookup(name, &unit); |
596 | if (ifc == NULL) { |
597 | return EINVAL; |
598 | } |
599 | |
600 | if (ifunit(name) != NULL) { |
601 | return EEXIST; |
602 | } |
603 | |
604 | bytoff = bitoff = 0; |
605 | wildcard = (unit == UINT32_MAX); |
606 | /* |
607 | * Find a free unit if none was given. |
608 | */ |
609 | lck_mtx_lock(lck: &ifc->ifc_mutex); |
610 | again: |
611 | if (wildcard) { |
612 | while ((bytoff < ifc->ifc_bmlen) && |
613 | (ifc->ifc_units[bytoff] == 0xff)) { |
614 | bytoff++; |
615 | } |
616 | if (bytoff >= ifc->ifc_bmlen) { |
617 | lck_mtx_lock(lck: &ifc->ifc_mutex); |
618 | return ENOSPC; |
619 | } |
620 | while ((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0) { |
621 | bitoff++; |
622 | } |
623 | unit = (bytoff << 3) + bitoff; |
624 | } |
625 | |
626 | if (unit > ifc->ifc_maxunit) { |
627 | lck_mtx_unlock(lck: &ifc->ifc_mutex); |
628 | return ENXIO; |
629 | } |
630 | |
631 | err = (*ifc->ifc_create)(ifc, unit, params); |
632 | if (err != 0) { |
633 | if (wildcard && err == EBUSY) { |
634 | bitoff++; |
635 | goto again; |
636 | } |
637 | lck_mtx_unlock(lck: &ifc->ifc_mutex); |
638 | return err; |
639 | } |
640 | |
641 | if (!wildcard) { |
642 | bytoff = unit >> 3; |
643 | bitoff = unit - (bytoff << 3); |
644 | } |
645 | |
646 | /* |
647 | * Allocate the unit in the bitmap. |
648 | */ |
649 | KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) == 0, |
650 | ("%s: bit is already set" , __func__)); |
651 | ifc->ifc_units[bytoff] |= (unsigned char)(1 << bitoff); |
652 | |
653 | /* In the wildcard case, we need to update the name. */ |
654 | if (wildcard) { |
655 | for (dp = name; *dp != '\0'; dp++) { |
656 | ; |
657 | } |
658 | if (snprintf(dp, count: len - (dp - name), "%d" , unit) > |
659 | len - (dp - name) - 1) { |
660 | /* |
661 | * This can only be a programmer error and |
662 | * there's no straightforward way to recover if |
663 | * it happens. |
664 | */ |
665 | panic("%s: interface name too long" , __func__); |
666 | /* NOTREACHED */ |
667 | } |
668 | } |
669 | lck_mtx_unlock(lck: &ifc->ifc_mutex); |
670 | ifp = ifunit(name); |
671 | if (ifp != NULL) { |
672 | if_set_eflags(ifp, IFEF_CLONE); |
673 | } |
674 | return 0; |
675 | } |
676 | |
677 | /* |
678 | * Destroy a clone network interface. |
679 | */ |
680 | static int |
681 | if_clone_destroy(const char *name) |
682 | { |
683 | struct if_clone *ifc = NULL; |
684 | struct ifnet *ifp = NULL; |
685 | int bytoff, bitoff; |
686 | u_int32_t unit; |
687 | int error = 0; |
688 | |
689 | ifc = if_clone_lookup(name, &unit); |
690 | |
691 | if (ifc == NULL) { |
692 | error = EINVAL; |
693 | goto done; |
694 | } |
695 | |
696 | if (unit < ifc->ifc_minifs) { |
697 | error = EINVAL; |
698 | goto done; |
699 | } |
700 | |
701 | ifp = ifunit_ref(name); |
702 | if (ifp == NULL) { |
703 | error = ENXIO; |
704 | goto done; |
705 | } |
706 | if ((ifp->if_eflags & IFEF_CLONE) == 0) { |
707 | error = EOPNOTSUPP; |
708 | goto done; |
709 | } |
710 | if (ifc->ifc_destroy == NULL) { |
711 | error = EOPNOTSUPP; |
712 | goto done; |
713 | } |
714 | |
715 | lck_mtx_lock(lck: &ifc->ifc_mutex); |
716 | error = (*ifc->ifc_destroy)(ifp); |
717 | |
718 | if (error) { |
719 | lck_mtx_unlock(lck: &ifc->ifc_mutex); |
720 | goto done; |
721 | } |
722 | |
723 | /* Compute offset in the bitmap and deallocate the unit. */ |
724 | bytoff = unit >> 3; |
725 | bitoff = unit - (bytoff << 3); |
726 | KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0, |
727 | ("%s: bit is already cleared" , __func__)); |
728 | ifc->ifc_units[bytoff] &= ~(1 << bitoff); |
729 | lck_mtx_unlock(lck: &ifc->ifc_mutex); |
730 | |
731 | done: |
732 | if (ifp != NULL) { |
733 | ifnet_decr_iorefcnt(ifp); |
734 | } |
735 | return error; |
736 | } |
737 | |
738 | /* |
739 | * Look up a network interface cloner. |
740 | */ |
741 | |
742 | __private_extern__ struct if_clone * |
743 | if_clone_lookup(const char *name, u_int32_t *unitp) |
744 | { |
745 | struct if_clone *ifc; |
746 | const char *cp; |
747 | u_int32_t i; |
748 | |
749 | LIST_FOREACH(ifc, &if_cloners, ifc_list) { |
750 | if (strncmp(s1: name, s2: ifc->ifc_name, n: ifc->ifc_namelen) == 0) { |
751 | cp = name + ifc->ifc_namelen; |
752 | goto found_name; |
753 | } |
754 | } |
755 | |
756 | /* No match. */ |
757 | return (struct if_clone *)NULL; |
758 | |
759 | found_name: |
760 | if (*cp == '\0') { |
761 | i = UINT32_MAX; |
762 | } else { |
763 | for (i = 0; *cp != '\0'; cp++) { |
764 | if (*cp < '0' || *cp > '9') { |
765 | /* Bogus unit number. */ |
766 | return NULL; |
767 | } |
768 | i = (i * 10) + (*cp - '0'); |
769 | } |
770 | } |
771 | |
772 | if (unitp != NULL) { |
773 | *unitp = i; |
774 | } |
775 | return ifc; |
776 | } |
777 | |
778 | /* |
779 | * Register a network interface cloner. |
780 | */ |
781 | int |
782 | if_clone_attach(struct if_clone *ifc) |
783 | { |
784 | int bytoff, bitoff; |
785 | int err; |
786 | int len, maxclone; |
787 | u_int32_t unit; |
788 | |
789 | KASSERT(ifc->ifc_minifs - 1 <= ifc->ifc_maxunit, |
790 | ("%s: %s requested more units then allowed (%d > %d)" , |
791 | __func__, ifc->ifc_name, ifc->ifc_minifs, |
792 | ifc->ifc_maxunit + 1)); |
793 | /* |
794 | * Compute bitmap size and allocate it. |
795 | */ |
796 | maxclone = ifc->ifc_maxunit + 1; |
797 | len = maxclone >> 3; |
798 | if ((len << 3) < maxclone) { |
799 | len++; |
800 | } |
801 | ifc->ifc_units = (unsigned char *)kalloc_data(len, Z_WAITOK | Z_ZERO); |
802 | if (ifc->ifc_units == NULL) { |
803 | return ENOBUFS; |
804 | } |
805 | ifc->ifc_bmlen = len; |
806 | lck_mtx_init(lck: &ifc->ifc_mutex, grp: &ifnet_lock_group, attr: &ifnet_lock_attr); |
807 | |
808 | LIST_INSERT_HEAD(&if_cloners, ifc, ifc_list); |
809 | if_cloners_count++; |
810 | |
811 | for (unit = 0; unit < ifc->ifc_minifs; unit++) { |
812 | err = (*ifc->ifc_create)(ifc, unit, NULL); |
813 | KASSERT(err == 0, |
814 | ("%s: failed to create required interface %s%d" , |
815 | __func__, ifc->ifc_name, unit)); |
816 | |
817 | /* Allocate the unit in the bitmap. */ |
818 | bytoff = unit >> 3; |
819 | bitoff = unit - (bytoff << 3); |
820 | ifc->ifc_units[bytoff] |= (unsigned char)(1 << bitoff); |
821 | } |
822 | |
823 | return 0; |
824 | } |
825 | |
826 | /* |
827 | * Unregister a network interface cloner. |
828 | */ |
829 | void |
830 | if_clone_detach(struct if_clone *ifc) |
831 | { |
832 | LIST_REMOVE(ifc, ifc_list); |
833 | kfree_data(ifc->ifc_units, ifc->ifc_bmlen); |
834 | lck_mtx_destroy(lck: &ifc->ifc_mutex, grp: &ifnet_lock_group); |
835 | if_cloners_count--; |
836 | } |
837 | |
838 | /* |
839 | * Provide list of interface cloners to userspace. |
840 | */ |
841 | static int |
842 | if_clone_list(int count, int *ret_total, user_addr_t dst) |
843 | { |
844 | char outbuf[IFNAMSIZ]; |
845 | struct if_clone *ifc; |
846 | int error = 0; |
847 | |
848 | *ret_total = if_cloners_count; |
849 | if (dst == USER_ADDR_NULL) { |
850 | /* Just asking how many there are. */ |
851 | return 0; |
852 | } |
853 | |
854 | if (count < 0) { |
855 | return EINVAL; |
856 | } |
857 | |
858 | count = (if_cloners_count < count) ? if_cloners_count : count; |
859 | |
860 | for (ifc = LIST_FIRST(&if_cloners); ifc != NULL && count != 0; |
861 | ifc = LIST_NEXT(ifc, ifc_list), count--, dst += IFNAMSIZ) { |
862 | bzero(s: outbuf, n: sizeof(outbuf)); |
863 | strlcpy(dst: outbuf, src: ifc->ifc_name, IFNAMSIZ); |
864 | error = copyout(outbuf, dst, IFNAMSIZ); |
865 | if (error) { |
866 | break; |
867 | } |
868 | } |
869 | |
870 | return error; |
871 | } |
872 | |
873 | u_int32_t |
874 | if_functional_type(struct ifnet *ifp, bool exclude_delegate) |
875 | { |
876 | u_int32_t ret = IFRTYPE_FUNCTIONAL_UNKNOWN; |
877 | |
878 | if (ifp != NULL) { |
879 | if (ifp->if_flags & IFF_LOOPBACK) { |
880 | ret = IFRTYPE_FUNCTIONAL_LOOPBACK; |
881 | } else if (IFNET_IS_COMPANION_LINK(ifp)) { |
882 | ret = IFRTYPE_FUNCTIONAL_COMPANIONLINK; |
883 | } else if ((exclude_delegate && |
884 | (ifp->if_family == IFNET_FAMILY_ETHERNET && |
885 | ifp->if_subfamily == IFNET_SUBFAMILY_WIFI)) || |
886 | (!exclude_delegate && IFNET_IS_WIFI(ifp))) { |
887 | if (ifp->if_eflags & IFEF_AWDL) { |
888 | ret = IFRTYPE_FUNCTIONAL_WIFI_AWDL; |
889 | } else { |
890 | ret = IFRTYPE_FUNCTIONAL_WIFI_INFRA; |
891 | } |
892 | } else if ((exclude_delegate && |
893 | (ifp->if_type == IFT_CELLULAR || |
894 | (ifp->if_family == IFNET_FAMILY_ETHERNET && |
895 | ifp->if_subfamily == IFNET_SUBFAMILY_SIMCELL))) || |
896 | (!exclude_delegate && IFNET_IS_CELLULAR(ifp))) { |
897 | ret = IFRTYPE_FUNCTIONAL_CELLULAR; |
898 | } else if (IFNET_IS_INTCOPROC(ifp)) { |
899 | ret = IFRTYPE_FUNCTIONAL_INTCOPROC; |
900 | } else if (IFNET_IS_MANAGEMENT(ifp)) { |
901 | ret = IFRTYPE_FUNCTIONAL_MANAGEMENT; |
902 | } else if ((exclude_delegate && |
903 | (ifp->if_family == IFNET_FAMILY_ETHERNET || |
904 | ifp->if_family == IFNET_FAMILY_BOND || |
905 | ifp->if_family == IFNET_FAMILY_VLAN || |
906 | ifp->if_family == IFNET_FAMILY_FIREWIRE)) || |
907 | (!exclude_delegate && IFNET_IS_WIRED(ifp))) { |
908 | ret = IFRTYPE_FUNCTIONAL_WIRED; |
909 | } |
910 | } |
911 | |
912 | return ret; |
913 | } |
914 | |
915 | /* |
916 | * Similar to ifa_ifwithaddr, except that this is IPv4 specific |
917 | * and that it matches only the local (not broadcast) address. |
918 | */ |
919 | __private_extern__ struct in_ifaddr * |
920 | ifa_foraddr(unsigned int addr) |
921 | { |
922 | return ifa_foraddr_scoped(addr, IFSCOPE_NONE); |
923 | } |
924 | |
925 | /* |
926 | * Similar to ifa_foraddr, except with the added interface scope |
927 | * constraint (unless the caller passes in IFSCOPE_NONE in which |
928 | * case there is no scope restriction). |
929 | */ |
930 | __private_extern__ struct in_ifaddr * |
931 | ifa_foraddr_scoped(unsigned int addr, unsigned int scope) |
932 | { |
933 | struct in_ifaddr *ia = NULL; |
934 | |
935 | lck_rw_lock_shared(lck: &in_ifaddr_rwlock); |
936 | TAILQ_FOREACH(ia, INADDR_HASH(addr), ia_hash) { |
937 | IFA_LOCK_SPIN(&ia->ia_ifa); |
938 | if (ia->ia_addr.sin_addr.s_addr == addr && |
939 | (scope == IFSCOPE_NONE || ia->ia_ifp->if_index == scope)) { |
940 | ifa_addref(ifa: &ia->ia_ifa); /* for caller */ |
941 | IFA_UNLOCK(&ia->ia_ifa); |
942 | break; |
943 | } |
944 | IFA_UNLOCK(&ia->ia_ifa); |
945 | } |
946 | lck_rw_done(lck: &in_ifaddr_rwlock); |
947 | return ia; |
948 | } |
949 | |
950 | /* |
951 | * Similar to ifa_foraddr, except that this for IPv6. |
952 | */ |
953 | __private_extern__ struct in6_ifaddr * |
954 | ifa_foraddr6(struct in6_addr *addr6) |
955 | { |
956 | return ifa_foraddr6_scoped(addr6, IFSCOPE_NONE); |
957 | } |
958 | |
959 | __private_extern__ struct in6_ifaddr * |
960 | ifa_foraddr6_scoped(struct in6_addr *addr6, unsigned int scope) |
961 | { |
962 | struct in6_ifaddr *ia = NULL; |
963 | |
964 | lck_rw_lock_shared(lck: &in6_ifaddr_rwlock); |
965 | TAILQ_FOREACH(ia, IN6ADDR_HASH(addr6), ia6_hash) { |
966 | IFA_LOCK(&ia->ia_ifa); |
967 | if (IN6_ARE_ADDR_EQUAL(&ia->ia_addr.sin6_addr, addr6) && |
968 | (scope == IFSCOPE_NONE || ia->ia_ifp->if_index == scope)) { |
969 | ifa_addref(ifa: &ia->ia_ifa); /* for caller */ |
970 | IFA_UNLOCK(&ia->ia_ifa); |
971 | break; |
972 | } |
973 | IFA_UNLOCK(&ia->ia_ifa); |
974 | } |
975 | lck_rw_done(lck: &in6_ifaddr_rwlock); |
976 | |
977 | return ia; |
978 | } |
979 | |
980 | /* |
981 | * Return the first (primary) address of a given family on an interface. |
982 | */ |
983 | __private_extern__ struct ifaddr * |
984 | ifa_ifpgetprimary(struct ifnet *ifp, int family) |
985 | { |
986 | struct ifaddr *ifa; |
987 | |
988 | ifnet_lock_shared(ifp); |
989 | TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { |
990 | IFA_LOCK_SPIN(ifa); |
991 | if (ifa->ifa_addr->sa_family == family) { |
992 | ifa_addref(ifa); /* for caller */ |
993 | IFA_UNLOCK(ifa); |
994 | break; |
995 | } |
996 | IFA_UNLOCK(ifa); |
997 | } |
998 | ifnet_lock_done(ifp); |
999 | |
1000 | return ifa; |
1001 | } |
1002 | |
1003 | inline boolean_t |
1004 | sa_equal(const struct sockaddr *sa1, const struct sockaddr *sa2) |
1005 | { |
1006 | if (!sa1 || !sa2) { |
1007 | return FALSE; |
1008 | } |
1009 | if (sa1->sa_len != sa2->sa_len) { |
1010 | return FALSE; |
1011 | } |
1012 | |
1013 | return SOCKADDR_CMP(sa1, sa2, sa1->sa_len) == 0; |
1014 | } |
1015 | |
1016 | /* |
1017 | * Locate an interface based on a complete address. |
1018 | */ |
1019 | struct ifaddr * |
1020 | ifa_ifwithaddr_locked(const struct sockaddr *addr) |
1021 | { |
1022 | struct ifnet *ifp; |
1023 | struct ifaddr *ifa; |
1024 | struct ifaddr *result = NULL; |
1025 | |
1026 | for (ifp = ifnet_head.tqh_first; ifp && !result; |
1027 | ifp = ifp->if_link.tqe_next) { |
1028 | ifnet_lock_shared(ifp); |
1029 | for (ifa = ifp->if_addrhead.tqh_first; ifa; |
1030 | ifa = ifa->ifa_link.tqe_next) { |
1031 | IFA_LOCK_SPIN(ifa); |
1032 | if (ifa->ifa_addr->sa_family != addr->sa_family) { |
1033 | IFA_UNLOCK(ifa); |
1034 | continue; |
1035 | } |
1036 | if (sa_equal(sa1: addr, sa2: ifa->ifa_addr)) { |
1037 | result = ifa; |
1038 | ifa_addref(ifa); /* for caller */ |
1039 | IFA_UNLOCK(ifa); |
1040 | break; |
1041 | } |
1042 | if ((ifp->if_flags & IFF_BROADCAST) && |
1043 | ifa->ifa_broadaddr != NULL && |
1044 | /* IP6 doesn't have broadcast */ |
1045 | ifa->ifa_broadaddr->sa_len != 0 && |
1046 | sa_equal(sa1: ifa->ifa_broadaddr, sa2: addr)) { |
1047 | result = ifa; |
1048 | ifa_addref(ifa); /* for caller */ |
1049 | IFA_UNLOCK(ifa); |
1050 | break; |
1051 | } |
1052 | IFA_UNLOCK(ifa); |
1053 | } |
1054 | ifnet_lock_done(ifp); |
1055 | } |
1056 | |
1057 | return result; |
1058 | } |
1059 | |
1060 | struct ifaddr * |
1061 | ifa_ifwithaddr(const struct sockaddr *addr) |
1062 | { |
1063 | struct ifaddr *result = NULL; |
1064 | |
1065 | ifnet_head_lock_shared(); |
1066 | |
1067 | result = ifa_ifwithaddr_locked(addr); |
1068 | |
1069 | ifnet_head_done(); |
1070 | |
1071 | return result; |
1072 | } |
1073 | /* |
1074 | * Locate the point to point interface with a given destination address. |
1075 | */ |
1076 | /*ARGSUSED*/ |
1077 | |
1078 | static struct ifaddr * |
1079 | ifa_ifwithdstaddr_ifp(const struct sockaddr *addr, struct ifnet * ifp) |
1080 | { |
1081 | struct ifaddr *ifa; |
1082 | struct ifaddr *result = NULL; |
1083 | |
1084 | if ((ifp->if_flags & IFF_POINTOPOINT) != 0) { |
1085 | ifnet_lock_shared(ifp); |
1086 | |
1087 | for (ifa = ifp->if_addrhead.tqh_first; ifa; |
1088 | ifa = ifa->ifa_link.tqe_next) { |
1089 | IFA_LOCK_SPIN(ifa); |
1090 | if (ifa->ifa_addr->sa_family != |
1091 | addr->sa_family) { |
1092 | IFA_UNLOCK(ifa); |
1093 | continue; |
1094 | } |
1095 | if (sa_equal(sa1: addr, sa2: ifa->ifa_dstaddr)) { |
1096 | result = ifa; |
1097 | ifa_addref(ifa); /* for caller */ |
1098 | IFA_UNLOCK(ifa); |
1099 | break; |
1100 | } |
1101 | IFA_UNLOCK(ifa); |
1102 | } |
1103 | |
1104 | ifnet_lock_done(ifp); |
1105 | } |
1106 | return result; |
1107 | } |
1108 | |
1109 | struct ifaddr * |
1110 | ifa_ifwithdstaddr(const struct sockaddr *addr) |
1111 | { |
1112 | struct ifnet *ifp; |
1113 | struct ifaddr *result = NULL; |
1114 | |
1115 | ifnet_head_lock_shared(); |
1116 | for (ifp = ifnet_head.tqh_first; ifp && !result; |
1117 | ifp = ifp->if_link.tqe_next) { |
1118 | result = ifa_ifwithdstaddr_ifp(addr, ifp); |
1119 | } |
1120 | ifnet_head_done(); |
1121 | return result; |
1122 | } |
1123 | |
1124 | struct ifaddr * |
1125 | ifa_ifwithdstaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) |
1126 | { |
1127 | struct ifnet *ifp; |
1128 | struct ifaddr *result = NULL; |
1129 | |
1130 | if (ifscope == IFSCOPE_NONE) { |
1131 | return ifa_ifwithdstaddr(addr); |
1132 | } |
1133 | ifnet_head_lock_shared(); |
1134 | if (ifscope <= (unsigned int)if_index) { |
1135 | ifp = ifindex2ifnet[ifscope]; |
1136 | if (ifp != NULL) { |
1137 | result = ifa_ifwithdstaddr_ifp(addr, ifp); |
1138 | } |
1139 | } |
1140 | ifnet_head_done(); |
1141 | return result; |
1142 | } |
1143 | |
1144 | /* |
1145 | * Locate the source address of an interface based on a complete address. |
1146 | */ |
1147 | struct ifaddr * |
1148 | ifa_ifwithaddr_scoped_locked(const struct sockaddr *addr, unsigned int ifscope) |
1149 | { |
1150 | struct ifaddr *result = NULL; |
1151 | struct ifnet *ifp; |
1152 | |
1153 | if (ifscope == IFSCOPE_NONE) { |
1154 | return ifa_ifwithaddr_locked(addr); |
1155 | } |
1156 | |
1157 | if (ifscope > (unsigned int)if_index) { |
1158 | return NULL; |
1159 | } |
1160 | |
1161 | ifp = ifindex2ifnet[ifscope]; |
1162 | if (ifp != NULL) { |
1163 | struct ifaddr *ifa = NULL; |
1164 | |
1165 | /* |
1166 | * This is suboptimal; there should be a better way |
1167 | * to search for a given address of an interface |
1168 | * for any given address family. |
1169 | */ |
1170 | ifnet_lock_shared(ifp); |
1171 | for (ifa = ifp->if_addrhead.tqh_first; ifa != NULL; |
1172 | ifa = ifa->ifa_link.tqe_next) { |
1173 | IFA_LOCK_SPIN(ifa); |
1174 | if (ifa->ifa_addr->sa_family != addr->sa_family) { |
1175 | IFA_UNLOCK(ifa); |
1176 | continue; |
1177 | } |
1178 | if (sa_equal(sa1: addr, sa2: ifa->ifa_addr)) { |
1179 | result = ifa; |
1180 | ifa_addref(ifa); /* for caller */ |
1181 | IFA_UNLOCK(ifa); |
1182 | break; |
1183 | } |
1184 | if ((ifp->if_flags & IFF_BROADCAST) && |
1185 | ifa->ifa_broadaddr != NULL && |
1186 | /* IP6 doesn't have broadcast */ |
1187 | ifa->ifa_broadaddr->sa_len != 0 && |
1188 | sa_equal(sa1: ifa->ifa_broadaddr, sa2: addr)) { |
1189 | result = ifa; |
1190 | ifa_addref(ifa); /* for caller */ |
1191 | IFA_UNLOCK(ifa); |
1192 | break; |
1193 | } |
1194 | IFA_UNLOCK(ifa); |
1195 | } |
1196 | ifnet_lock_done(ifp); |
1197 | } |
1198 | |
1199 | return result; |
1200 | } |
1201 | |
1202 | struct ifaddr * |
1203 | ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) |
1204 | { |
1205 | struct ifaddr *result = NULL; |
1206 | |
1207 | ifnet_head_lock_shared(); |
1208 | |
1209 | result = ifa_ifwithaddr_scoped_locked(addr, ifscope); |
1210 | |
1211 | ifnet_head_done(); |
1212 | |
1213 | return result; |
1214 | } |
1215 | |
1216 | struct ifaddr * |
1217 | ifa_ifwithnet(const struct sockaddr *addr) |
1218 | { |
1219 | return ifa_ifwithnet_common(addr, IFSCOPE_NONE); |
1220 | } |
1221 | |
1222 | struct ifaddr * |
1223 | ifa_ifwithnet_scoped(const struct sockaddr *addr, unsigned int ifscope) |
1224 | { |
1225 | return ifa_ifwithnet_common(addr, ifscope); |
1226 | } |
1227 | |
1228 | /* |
1229 | * Find an interface on a specific network. If many, choice |
1230 | * is most specific found. |
1231 | */ |
1232 | static struct ifaddr * |
1233 | ifa_ifwithnet_common(const struct sockaddr *addr, unsigned int ifscope) |
1234 | { |
1235 | struct ifnet *ifp; |
1236 | struct ifaddr *ifa = NULL; |
1237 | struct ifaddr *ifa_maybe = NULL; |
1238 | u_int af = addr->sa_family; |
1239 | const char *addr_data = addr->sa_data, *cplim; |
1240 | const struct sockaddr_in6 *sock_addr = SIN6(addr); |
1241 | |
1242 | if (af != AF_INET && af != AF_INET6) { |
1243 | ifscope = IFSCOPE_NONE; |
1244 | } |
1245 | |
1246 | ifnet_head_lock_shared(); |
1247 | /* |
1248 | * AF_LINK addresses can be looked up directly by their index number, |
1249 | * so do that if we can. |
1250 | */ |
1251 | if (af == AF_LINK) { |
1252 | const struct sockaddr_dl *sdl = |
1253 | SDL(addr); |
1254 | if (sdl->sdl_index && sdl->sdl_index <= if_index) { |
1255 | ifa = ifnet_addrs[sdl->sdl_index - 1]; |
1256 | if (ifa != NULL) { |
1257 | ifa_addref(ifa); |
1258 | } |
1259 | |
1260 | ifnet_head_done(); |
1261 | return ifa; |
1262 | } |
1263 | } |
1264 | |
1265 | if (!in6_embedded_scope && af == AF_INET6 && |
1266 | IN6_IS_SCOPE_EMBED(&sock_addr->sin6_addr)) { |
1267 | VERIFY(ifscope != IFSCOPE_NONE); |
1268 | } |
1269 | |
1270 | /* |
1271 | * Scan though each interface, looking for ones that have |
1272 | * addresses in this address family. |
1273 | */ |
1274 | for (ifp = ifnet_head.tqh_first; ifp; ifp = ifp->if_link.tqe_next) { |
1275 | ifnet_lock_shared(ifp); |
1276 | for (ifa = ifp->if_addrhead.tqh_first; ifa; |
1277 | ifa = ifa->ifa_link.tqe_next) { |
1278 | const char *cp, *cp2, *cp3; |
1279 | |
1280 | IFA_LOCK(ifa); |
1281 | if (ifa->ifa_addr == NULL || |
1282 | ifa->ifa_addr->sa_family != af) { |
1283 | next: |
1284 | IFA_UNLOCK(ifa); |
1285 | continue; |
1286 | } |
1287 | /* |
1288 | * If we're looking up with a scope, |
1289 | * find using a matching interface. |
1290 | */ |
1291 | if (ifscope != IFSCOPE_NONE && |
1292 | ifp->if_index != ifscope) { |
1293 | IFA_UNLOCK(ifa); |
1294 | continue; |
1295 | } |
1296 | |
1297 | /* |
1298 | * Scan all the bits in the ifa's address. |
1299 | * If a bit dissagrees with what we are |
1300 | * looking for, mask it with the netmask |
1301 | * to see if it really matters. |
1302 | * (A byte at a time) |
1303 | */ |
1304 | if (ifa->ifa_netmask == 0) { |
1305 | IFA_UNLOCK(ifa); |
1306 | continue; |
1307 | } |
1308 | cp = addr_data; |
1309 | cp2 = ifa->ifa_addr->sa_data; |
1310 | cp3 = ifa->ifa_netmask->sa_data; |
1311 | cplim = ifa->ifa_netmask->sa_len + |
1312 | (char *)ifa->ifa_netmask; |
1313 | while (cp3 < cplim) { |
1314 | if ((*cp++ ^ *cp2++) & *cp3++) { |
1315 | goto next; /* next address! */ |
1316 | } |
1317 | } |
1318 | /* |
1319 | * If the netmask of what we just found |
1320 | * is more specific than what we had before |
1321 | * (if we had one) then remember the new one |
1322 | * before continuing to search |
1323 | * for an even better one. |
1324 | */ |
1325 | if (ifa_maybe == NULL || |
1326 | rn_refines((caddr_t)ifa->ifa_netmask, |
1327 | (caddr_t)ifa_maybe->ifa_netmask)) { |
1328 | ifa_addref(ifa); /* ifa_maybe */ |
1329 | IFA_UNLOCK(ifa); |
1330 | if (ifa_maybe != NULL) { |
1331 | ifa_remref(ifa: ifa_maybe); |
1332 | } |
1333 | ifa_maybe = ifa; |
1334 | } else { |
1335 | IFA_UNLOCK(ifa); |
1336 | } |
1337 | IFA_LOCK_ASSERT_NOTHELD(ifa); |
1338 | } |
1339 | ifnet_lock_done(ifp); |
1340 | |
1341 | if (ifa != NULL) { |
1342 | break; |
1343 | } |
1344 | } |
1345 | ifnet_head_done(); |
1346 | |
1347 | if (ifa == NULL) { |
1348 | ifa = ifa_maybe; |
1349 | } else if (ifa_maybe != NULL) { |
1350 | ifa_remref(ifa: ifa_maybe); |
1351 | } |
1352 | |
1353 | return ifa; |
1354 | } |
1355 | |
1356 | /* |
1357 | * Find an interface address specific to an interface best matching |
1358 | * a given address applying same source address selection rules |
1359 | * as done in the kernel for implicit source address binding |
1360 | */ |
1361 | struct ifaddr * |
1362 | ifaof_ifpforaddr_select(const struct sockaddr *addr, struct ifnet *ifp) |
1363 | { |
1364 | u_int af = addr->sa_family; |
1365 | |
1366 | if (af == AF_INET6) { |
1367 | return in6_selectsrc_core_ifa(__DECONST(struct sockaddr_in6 *, addr), ifp, 0); |
1368 | } |
1369 | |
1370 | return ifaof_ifpforaddr(addr, ifp); |
1371 | } |
1372 | |
1373 | /* |
1374 | * Find an interface address specific to an interface best matching |
1375 | * a given address without regards to source address selection. |
1376 | * |
1377 | * This is appropriate for use-cases where we just want to update/init |
1378 | * some data structure like routing table entries. |
1379 | */ |
1380 | struct ifaddr * |
1381 | ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) |
1382 | { |
1383 | struct ifaddr *ifa = NULL; |
1384 | const char *cp, *cp2, *cp3; |
1385 | char *cplim; |
1386 | struct ifaddr *ifa_maybe = NULL; |
1387 | struct ifaddr *better_ifa_maybe = NULL; |
1388 | u_int af = addr->sa_family; |
1389 | |
1390 | if (af >= AF_MAX) { |
1391 | return NULL; |
1392 | } |
1393 | |
1394 | ifnet_lock_shared(ifp); |
1395 | for (ifa = ifp->if_addrhead.tqh_first; ifa; |
1396 | ifa = ifa->ifa_link.tqe_next) { |
1397 | IFA_LOCK(ifa); |
1398 | if (ifa->ifa_addr->sa_family != af) { |
1399 | IFA_UNLOCK(ifa); |
1400 | continue; |
1401 | } |
1402 | if (ifa_maybe == NULL) { |
1403 | ifa_addref(ifa); /* for ifa_maybe */ |
1404 | ifa_maybe = ifa; |
1405 | } |
1406 | if (ifa->ifa_netmask == 0) { |
1407 | if (sa_equal(sa1: addr, sa2: ifa->ifa_addr) || |
1408 | sa_equal(sa1: addr, sa2: ifa->ifa_dstaddr)) { |
1409 | ifa_addref(ifa); /* for caller */ |
1410 | IFA_UNLOCK(ifa); |
1411 | break; |
1412 | } |
1413 | IFA_UNLOCK(ifa); |
1414 | continue; |
1415 | } |
1416 | if (ifp->if_flags & IFF_POINTOPOINT) { |
1417 | if (sa_equal(sa1: addr, sa2: ifa->ifa_dstaddr)) { |
1418 | ifa_addref(ifa); /* for caller */ |
1419 | IFA_UNLOCK(ifa); |
1420 | break; |
1421 | } |
1422 | } else { |
1423 | if (sa_equal(sa1: addr, sa2: ifa->ifa_addr)) { |
1424 | /* exact match */ |
1425 | ifa_addref(ifa); /* for caller */ |
1426 | IFA_UNLOCK(ifa); |
1427 | break; |
1428 | } |
1429 | cp = addr->sa_data; |
1430 | cp2 = ifa->ifa_addr->sa_data; |
1431 | cp3 = ifa->ifa_netmask->sa_data; |
1432 | cplim = ifa->ifa_netmask->sa_len + |
1433 | (char *)ifa->ifa_netmask; |
1434 | for (; cp3 < cplim; cp3++) { |
1435 | if ((*cp++ ^ *cp2++) & *cp3) { |
1436 | break; |
1437 | } |
1438 | } |
1439 | if (cp3 == cplim) { |
1440 | /* subnet match */ |
1441 | if (better_ifa_maybe == NULL) { |
1442 | /* for better_ifa_maybe */ |
1443 | ifa_addref(ifa); |
1444 | better_ifa_maybe = ifa; |
1445 | } |
1446 | } |
1447 | } |
1448 | IFA_UNLOCK(ifa); |
1449 | } |
1450 | |
1451 | if (ifa == NULL) { |
1452 | if (better_ifa_maybe != NULL) { |
1453 | ifa = better_ifa_maybe; |
1454 | better_ifa_maybe = NULL; |
1455 | } else { |
1456 | ifa = ifa_maybe; |
1457 | ifa_maybe = NULL; |
1458 | } |
1459 | } |
1460 | |
1461 | ifnet_lock_done(ifp); |
1462 | |
1463 | if (better_ifa_maybe != NULL) { |
1464 | ifa_remref(ifa: better_ifa_maybe); |
1465 | } |
1466 | if (ifa_maybe != NULL) { |
1467 | ifa_remref(ifa: ifa_maybe); |
1468 | } |
1469 | |
1470 | return ifa; |
1471 | } |
1472 | |
1473 | #include <net/route.h> |
1474 | |
1475 | /* |
1476 | * Default action when installing a route with a Link Level gateway. |
1477 | * Lookup an appropriate real ifa to point to. |
1478 | * This should be moved to /sys/net/link.c eventually. |
1479 | */ |
1480 | void |
1481 | link_rtrequest(int cmd, struct rtentry *rt, struct sockaddr *sa) |
1482 | { |
1483 | struct ifaddr *ifa; |
1484 | struct sockaddr *dst; |
1485 | struct ifnet *ifp; |
1486 | void (*ifa_rtrequest)(int, struct rtentry *, struct sockaddr *); |
1487 | |
1488 | LCK_MTX_ASSERT(rnh_lock, LCK_MTX_ASSERT_OWNED); |
1489 | RT_LOCK_ASSERT_HELD(rt); |
1490 | |
1491 | if (cmd != RTM_ADD || ((ifa = rt->rt_ifa) == 0) || |
1492 | ((ifp = ifa->ifa_ifp) == 0) || ((dst = rt_key(rt)) == 0)) { |
1493 | return; |
1494 | } |
1495 | |
1496 | /* Become a regular mutex, just in case */ |
1497 | RT_CONVERT_LOCK(rt); |
1498 | |
1499 | ifa = ifaof_ifpforaddr(addr: dst, ifp); |
1500 | if (ifa) { |
1501 | rtsetifa(rt, ifa); |
1502 | IFA_LOCK_SPIN(ifa); |
1503 | ifa_rtrequest = ifa->ifa_rtrequest; |
1504 | IFA_UNLOCK(ifa); |
1505 | if (ifa_rtrequest != NULL && ifa_rtrequest != link_rtrequest) { |
1506 | ifa_rtrequest(cmd, rt, sa); |
1507 | } |
1508 | ifa_remref(ifa); |
1509 | } |
1510 | } |
1511 | |
1512 | /* |
1513 | * if_updown will set the interface up or down. It will |
1514 | * prevent other up/down events from occurring until this |
1515 | * up/down event has completed. |
1516 | * |
1517 | * Caller must lock ifnet. This function will drop the |
1518 | * lock. This allows ifnet_set_flags to set the rest of |
1519 | * the flags after we change the up/down state without |
1520 | * dropping the interface lock between setting the |
1521 | * up/down state and updating the rest of the flags. |
1522 | */ |
1523 | __private_extern__ void |
1524 | if_updown(struct ifnet *ifp, int up) |
1525 | { |
1526 | u_int32_t eflags; |
1527 | int i; |
1528 | struct ifaddr **ifa; |
1529 | struct timespec tv; |
1530 | struct ifclassq *ifq; |
1531 | |
1532 | /* Wait until no one else is changing the up/down state */ |
1533 | while ((ifp->if_eflags & IFEF_UPDOWNCHANGE) != 0) { |
1534 | tv.tv_sec = 0; |
1535 | tv.tv_nsec = NSEC_PER_SEC / 10; |
1536 | ifnet_lock_done(ifp); |
1537 | msleep(chan: &ifp->if_eflags, NULL, pri: 0, wmesg: "if_updown" , ts: &tv); |
1538 | ifnet_lock_exclusive(ifp); |
1539 | } |
1540 | |
1541 | /* Verify that the interface isn't already in the right state */ |
1542 | if ((!up && (ifp->if_flags & IFF_UP) == 0) || |
1543 | (up && (ifp->if_flags & IFF_UP) == IFF_UP)) { |
1544 | return; |
1545 | } |
1546 | |
1547 | /* Indicate that the up/down state is changing */ |
1548 | eflags = if_set_eflags(ifp, IFEF_UPDOWNCHANGE); |
1549 | ASSERT((eflags & IFEF_UPDOWNCHANGE) == 0); |
1550 | |
1551 | /* Mark interface up or down */ |
1552 | if (up) { |
1553 | ifp->if_flags |= IFF_UP; |
1554 | } else { |
1555 | ifp->if_flags &= ~IFF_UP; |
1556 | } |
1557 | |
1558 | if (!ifnet_is_attached(ifp, refio: 1)) { |
1559 | /* |
1560 | * The interface is not attached or is detaching, so |
1561 | * skip modifying any other state. |
1562 | */ |
1563 | os_log(OS_LOG_DEFAULT, "%s: %s is not attached" , |
1564 | __func__, if_name(ifp)); |
1565 | } else { |
1566 | /* Drop the lock to notify addresses and route */ |
1567 | ifnet_lock_done(ifp); |
1568 | |
1569 | /* Inform all transmit queues about the new link state */ |
1570 | ifq = ifp->if_snd; |
1571 | ASSERT(ifq != NULL); |
1572 | IFCQ_LOCK(ifq); |
1573 | if_qflush_snd(ifp, true); |
1574 | ifnet_update_sndq(ifq, |
1575 | up ? CLASSQ_EV_LINK_UP : CLASSQ_EV_LINK_DOWN); |
1576 | IFCQ_UNLOCK(ifq); |
1577 | |
1578 | /* Inform protocols of changed interface state */ |
1579 | if (ifnet_get_address_list(interface: ifp, addresses: &ifa) == 0) { |
1580 | for (i = 0; ifa[i] != 0; i++) { |
1581 | pfctlinput(up ? PRC_IFUP : PRC_IFDOWN, |
1582 | ifa[i]->ifa_addr); |
1583 | } |
1584 | ifnet_free_address_list(addresses: ifa); |
1585 | } |
1586 | rt_ifmsg(ifp); |
1587 | |
1588 | ifnet_lock_exclusive(ifp); |
1589 | ifnet_touch_lastchange(interface: ifp); |
1590 | ifnet_touch_lastupdown(interface: ifp); |
1591 | ifnet_decr_iorefcnt(ifp); |
1592 | } |
1593 | if_clear_eflags(ifp, IFEF_UPDOWNCHANGE); |
1594 | wakeup(chan: &ifp->if_eflags); |
1595 | } |
1596 | |
1597 | /* |
1598 | * Mark an interface down and notify protocols of |
1599 | * the transition. |
1600 | */ |
1601 | void |
1602 | if_down( |
1603 | struct ifnet *ifp) |
1604 | { |
1605 | ifnet_lock_exclusive(ifp); |
1606 | if_updown(ifp, up: 0); |
1607 | ifnet_lock_done(ifp); |
1608 | } |
1609 | |
1610 | /* |
1611 | * Mark an interface up and notify protocols of |
1612 | * the transition. |
1613 | */ |
1614 | void |
1615 | if_up( |
1616 | struct ifnet *ifp) |
1617 | { |
1618 | ifnet_lock_exclusive(ifp); |
1619 | if_updown(ifp, up: 1); |
1620 | ifnet_lock_done(ifp); |
1621 | } |
1622 | |
1623 | /* |
1624 | * Flush an interface queue. |
1625 | */ |
1626 | void |
1627 | if_qflush(struct ifnet *ifp, struct ifclassq *ifq, bool ifq_locked) |
1628 | { |
1629 | lck_mtx_lock(lck: &ifp->if_ref_lock); |
1630 | if ((ifp->if_refflags & IFRF_ATTACH_MASK) == 0) { |
1631 | lck_mtx_unlock(lck: &ifp->if_ref_lock); |
1632 | return; |
1633 | } |
1634 | VERIFY(ifq != NULL); |
1635 | ifclassq_retain(ifq); |
1636 | lck_mtx_unlock(lck: &ifp->if_ref_lock); |
1637 | |
1638 | if (!ifq_locked) { |
1639 | IFCQ_LOCK(ifq); |
1640 | } |
1641 | |
1642 | if (IFCQ_IS_ENABLED(ifq)) { |
1643 | fq_if_request_classq(ifq, rq: CLASSQRQ_PURGE, NULL); |
1644 | } |
1645 | |
1646 | VERIFY(IFCQ_IS_EMPTY(ifq)); |
1647 | |
1648 | if (!ifq_locked) { |
1649 | IFCQ_UNLOCK(ifq); |
1650 | } |
1651 | ifclassq_release(&ifq); |
1652 | } |
1653 | |
1654 | void |
1655 | if_qflush_snd(struct ifnet *ifp, bool ifq_locked) |
1656 | { |
1657 | if_qflush(ifp, ifq: ifp->if_snd, ifq_locked); |
1658 | } |
1659 | |
1660 | void |
1661 | if_qflush_sc(struct ifnet *ifp, mbuf_svc_class_t sc, u_int32_t flow, |
1662 | u_int32_t *packets, u_int32_t *bytes, int ifq_locked) |
1663 | { |
1664 | struct ifclassq *ifq; |
1665 | u_int32_t cnt = 0, len = 0; |
1666 | |
1667 | if ((ifp->if_refflags & IFRF_ATTACH_MASK) == 0) { |
1668 | return; |
1669 | } |
1670 | ifq = ifp->if_snd; |
1671 | VERIFY(ifq != NULL); |
1672 | VERIFY(sc == MBUF_SC_UNSPEC || MBUF_VALID_SC(sc)); |
1673 | VERIFY(flow != 0); |
1674 | |
1675 | if (!ifq_locked) { |
1676 | IFCQ_LOCK(ifq); |
1677 | } |
1678 | |
1679 | if (IFCQ_IS_ENABLED(ifq)) { |
1680 | cqrq_purge_sc_t req = { sc, flow, 0, 0 }; |
1681 | |
1682 | fq_if_request_classq(ifq, rq: CLASSQRQ_PURGE_SC, arg: &req); |
1683 | cnt = req.packets; |
1684 | len = req.bytes; |
1685 | } |
1686 | |
1687 | if (!ifq_locked) { |
1688 | IFCQ_UNLOCK(ifq); |
1689 | } |
1690 | |
1691 | if (packets != NULL) { |
1692 | *packets = cnt; |
1693 | } |
1694 | if (bytes != NULL) { |
1695 | *bytes = len; |
1696 | } |
1697 | } |
1698 | |
1699 | /* |
1700 | * Extracts interface unit number and name from string, returns -1 upon failure. |
1701 | * Upon success, returns extracted unit number, and interface name in dst. |
1702 | */ |
1703 | int |
1704 | (const char *src, char *dst, size_t dstlen, int *unit) |
1705 | { |
1706 | const char *cp; |
1707 | size_t len, m; |
1708 | char c; |
1709 | int u; |
1710 | |
1711 | if (src == NULL || dst == NULL || dstlen == 0 || unit == NULL) { |
1712 | return -1; |
1713 | } |
1714 | |
1715 | len = strlen(s: src); |
1716 | if (len < 2 || len > dstlen) { |
1717 | return -1; |
1718 | } |
1719 | cp = src + len - 1; |
1720 | c = *cp; |
1721 | if (c < '0' || c > '9') { |
1722 | return -1; /* trailing garbage */ |
1723 | } |
1724 | u = 0; |
1725 | m = 1; |
1726 | do { |
1727 | if (cp == src) { |
1728 | return -1; /* no interface name */ |
1729 | } |
1730 | u += (c - '0') * m; |
1731 | if (u > 1000000) { |
1732 | return -1; /* number is unreasonable */ |
1733 | } |
1734 | m *= 10; |
1735 | c = *--cp; |
1736 | } while (c >= '0' && c <= '9'); |
1737 | len = cp - src + 1; |
1738 | bcopy(src, dst, n: len); |
1739 | dst[len] = '\0'; |
1740 | *unit = u; |
1741 | |
1742 | return 0; |
1743 | } |
1744 | |
1745 | /* |
1746 | * Map interface name to |
1747 | * interface structure pointer. |
1748 | */ |
1749 | static struct ifnet * |
1750 | ifunit_common(const char *name, boolean_t hold) |
1751 | { |
1752 | char namebuf[IFNAMSIZ + 1]; |
1753 | struct ifnet *ifp; |
1754 | int unit; |
1755 | |
1756 | if (ifunit_extract(src: name, dst: namebuf, dstlen: sizeof(namebuf), unit: &unit) < 0) { |
1757 | return NULL; |
1758 | } |
1759 | |
1760 | /* for safety, since we use strcmp() below */ |
1761 | namebuf[sizeof(namebuf) - 1] = '\0'; |
1762 | |
1763 | /* |
1764 | * Now search all the interfaces for this name/number |
1765 | */ |
1766 | ifnet_head_lock_shared(); |
1767 | TAILQ_FOREACH(ifp, &ifnet_head, if_link) { |
1768 | /* |
1769 | * Use strcmp() rather than strncmp() here, |
1770 | * since we want to match the entire string. |
1771 | */ |
1772 | if (strcmp(s1: ifp->if_name, s2: namebuf)) { |
1773 | continue; |
1774 | } |
1775 | if (unit == ifp->if_unit) { |
1776 | break; |
1777 | } |
1778 | } |
1779 | |
1780 | /* if called from ifunit_ref() and ifnet is not attached, bail */ |
1781 | if (hold && ifp != NULL && !ifnet_is_attached(ifp, refio: 1)) { |
1782 | ifp = NULL; |
1783 | } |
1784 | |
1785 | ifnet_head_done(); |
1786 | return ifp; |
1787 | } |
1788 | |
1789 | struct ifnet * |
1790 | ifunit(const char *name) |
1791 | { |
1792 | return ifunit_common(name, FALSE); |
1793 | } |
1794 | |
1795 | /* |
1796 | * Similar to ifunit(), except that we hold an I/O reference count on an |
1797 | * attached interface, which must later be released via ifnet_decr_iorefcnt(). |
1798 | * Will return NULL unless interface exists and is fully attached. |
1799 | */ |
1800 | struct ifnet * |
1801 | ifunit_ref(const char *name) |
1802 | { |
1803 | return ifunit_common(name, TRUE); |
1804 | } |
1805 | |
1806 | /* |
1807 | * Map interface name in a sockaddr_dl to |
1808 | * interface structure pointer. |
1809 | */ |
1810 | struct ifnet * |
1811 | if_withname(struct sockaddr *sa) |
1812 | { |
1813 | char ifname[IFNAMSIZ + 1]; |
1814 | struct sockaddr_dl *sdl = SDL(sa); |
1815 | |
1816 | if ((sa->sa_family != AF_LINK) || (sdl->sdl_nlen == 0) || |
1817 | (sdl->sdl_nlen > IFNAMSIZ)) { |
1818 | return NULL; |
1819 | } |
1820 | |
1821 | /* |
1822 | * ifunit wants a null-terminated name. It may not be null-terminated |
1823 | * in the sockaddr. We don't want to change the caller's sockaddr, |
1824 | * and there might not be room to put the trailing null anyway, so we |
1825 | * make a local copy that we know we can null terminate safely. |
1826 | */ |
1827 | |
1828 | bcopy(src: sdl->sdl_data, dst: ifname, n: sdl->sdl_nlen); |
1829 | ifname[sdl->sdl_nlen] = '\0'; |
1830 | return ifunit(name: ifname); |
1831 | } |
1832 | |
1833 | static __attribute__((noinline)) int |
1834 | ifioctl_ifconf(u_long cmd, caddr_t data) |
1835 | { |
1836 | int error = 0; |
1837 | |
1838 | switch (cmd) { |
1839 | case OSIOCGIFCONF32: /* struct ifconf32 */ |
1840 | case SIOCGIFCONF32: { /* struct ifconf32 */ |
1841 | struct ifconf32 ifc; |
1842 | bcopy(src: data, dst: &ifc, n: sizeof(ifc)); |
1843 | error = ifconf(cmd, CAST_USER_ADDR_T(ifc.ifc_req), |
1844 | ret_space: &ifc.ifc_len); |
1845 | bcopy(src: &ifc, dst: data, n: sizeof(ifc)); |
1846 | break; |
1847 | } |
1848 | |
1849 | case SIOCGIFCONF64: /* struct ifconf64 */ |
1850 | case OSIOCGIFCONF64: { /* struct ifconf64 */ |
1851 | struct ifconf64 ifc; |
1852 | bcopy(src: data, dst: &ifc, n: sizeof(ifc)); |
1853 | error = ifconf(cmd, CAST_USER_ADDR_T(ifc.ifc_req), ret_space: &ifc.ifc_len); |
1854 | bcopy(src: &ifc, dst: data, n: sizeof(ifc)); |
1855 | break; |
1856 | } |
1857 | |
1858 | default: |
1859 | VERIFY(0); |
1860 | /* NOTREACHED */ |
1861 | } |
1862 | |
1863 | return error; |
1864 | } |
1865 | |
1866 | static __attribute__((noinline)) int |
1867 | ifioctl_ifclone(u_long cmd, caddr_t data) |
1868 | { |
1869 | int error = 0; |
1870 | |
1871 | switch (cmd) { |
1872 | case SIOCIFGCLONERS32: { /* struct if_clonereq32 */ |
1873 | struct if_clonereq32 ifcr; |
1874 | bcopy(src: data, dst: &ifcr, n: sizeof(ifcr)); |
1875 | error = if_clone_list(count: ifcr.ifcr_count, ret_total: &ifcr.ifcr_total, |
1876 | CAST_USER_ADDR_T(ifcr.ifcru_buffer)); |
1877 | bcopy(src: &ifcr, dst: data, n: sizeof(ifcr)); |
1878 | break; |
1879 | } |
1880 | |
1881 | case SIOCIFGCLONERS64: { /* struct if_clonereq64 */ |
1882 | struct if_clonereq64 ifcr; |
1883 | bcopy(src: data, dst: &ifcr, n: sizeof(ifcr)); |
1884 | error = if_clone_list(count: ifcr.ifcr_count, ret_total: &ifcr.ifcr_total, |
1885 | CAST_USER_ADDR_T(ifcr.ifcru_buffer)); |
1886 | bcopy(src: &ifcr, dst: data, n: sizeof(ifcr)); |
1887 | break; |
1888 | } |
1889 | |
1890 | default: |
1891 | VERIFY(0); |
1892 | /* NOTREACHED */ |
1893 | } |
1894 | |
1895 | return error; |
1896 | } |
1897 | |
1898 | static __attribute__((noinline)) int |
1899 | ifioctl_ifdesc(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) |
1900 | { |
1901 | struct if_descreq *ifdr = (struct if_descreq *)(void *)data; |
1902 | u_int32_t ifdr_len; |
1903 | int error = 0; |
1904 | |
1905 | VERIFY(ifp != NULL); |
1906 | |
1907 | switch (cmd) { |
1908 | case SIOCSIFDESC: { /* struct if_descreq */ |
1909 | if ((error = proc_suser(p)) != 0) { |
1910 | break; |
1911 | } |
1912 | |
1913 | ifnet_lock_exclusive(ifp); |
1914 | bcopy(src: &ifdr->ifdr_len, dst: &ifdr_len, n: sizeof(ifdr_len)); |
1915 | if (ifdr_len > sizeof(ifdr->ifdr_desc) || |
1916 | ifdr_len > ifp->if_desc.ifd_maxlen) { |
1917 | error = EINVAL; |
1918 | ifnet_lock_done(ifp); |
1919 | break; |
1920 | } |
1921 | |
1922 | bzero(s: ifp->if_desc.ifd_desc, n: ifp->if_desc.ifd_maxlen); |
1923 | if ((ifp->if_desc.ifd_len = ifdr_len) > 0) { |
1924 | bcopy(src: ifdr->ifdr_desc, dst: ifp->if_desc.ifd_desc, |
1925 | MIN(ifdr_len, ifp->if_desc.ifd_maxlen)); |
1926 | } |
1927 | ifnet_lock_done(ifp); |
1928 | break; |
1929 | } |
1930 | |
1931 | case SIOCGIFDESC: { /* struct if_descreq */ |
1932 | ifnet_lock_shared(ifp); |
1933 | ifdr_len = MIN(ifp->if_desc.ifd_len, sizeof(ifdr->ifdr_desc)); |
1934 | bcopy(src: &ifdr_len, dst: &ifdr->ifdr_len, n: sizeof(ifdr_len)); |
1935 | bzero(s: &ifdr->ifdr_desc, n: sizeof(ifdr->ifdr_desc)); |
1936 | if (ifdr_len > 0) { |
1937 | bcopy(src: ifp->if_desc.ifd_desc, dst: ifdr->ifdr_desc, n: ifdr_len); |
1938 | } |
1939 | ifnet_lock_done(ifp); |
1940 | break; |
1941 | } |
1942 | |
1943 | default: |
1944 | VERIFY(0); |
1945 | /* NOTREACHED */ |
1946 | } |
1947 | |
1948 | return error; |
1949 | } |
1950 | |
1951 | static __attribute__((noinline)) int |
1952 | ifioctl_linkparams(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) |
1953 | { |
1954 | struct if_linkparamsreq *iflpr = |
1955 | (struct if_linkparamsreq *)(void *)data; |
1956 | struct ifclassq *ifq; |
1957 | int error = 0; |
1958 | |
1959 | VERIFY(ifp != NULL); |
1960 | ifq = ifp->if_snd; |
1961 | |
1962 | ASSERT(ifq != NULL); |
1963 | switch (cmd) { |
1964 | case SIOCSIFLINKPARAMS: { /* struct if_linkparamsreq */ |
1965 | struct tb_profile tb = { .rate = 0, .percent = 0, .depth = 0 }; |
1966 | |
1967 | if ((error = proc_suser(p)) != 0) { |
1968 | break; |
1969 | } |
1970 | |
1971 | #if SKYWALK |
1972 | error = kern_nexus_set_netif_input_tbr_rate(ifp, |
1973 | rate: iflpr->iflpr_input_tbr_rate); |
1974 | if (error != 0) { |
1975 | break; |
1976 | } |
1977 | |
1978 | /* |
1979 | * Input netem is done at flowswitch, which is the entry point |
1980 | * of all traffic, when skywalk is enabled. |
1981 | */ |
1982 | error = kern_nexus_set_if_netem_params( |
1983 | ctl: kern_nexus_shared_controller(), |
1984 | nx_uuid: ifp->if_nx_flowswitch.if_fsw_instance, |
1985 | data: &iflpr->iflpr_input_netem, |
1986 | data_len: sizeof(iflpr->iflpr_input_netem)); |
1987 | if (error != 0) { |
1988 | break; |
1989 | } |
1990 | #endif /* SKYWALK */ |
1991 | |
1992 | char netem_name[32]; |
1993 | (void) snprintf(netem_name, count: sizeof(netem_name), |
1994 | "if_output_netem_%s" , if_name(ifp)); |
1995 | error = netem_config(ne: &ifp->if_output_netem, name: netem_name, ifp, |
1996 | p: &iflpr->iflpr_output_netem, output_handle: (void *)ifp, |
1997 | output_func: ifnet_enqueue_netem, NETEM_MAX_BATCH_SIZE); |
1998 | if (error != 0) { |
1999 | break; |
2000 | } |
2001 | |
2002 | IFCQ_LOCK(ifq); |
2003 | if (!IFCQ_IS_READY(ifq)) { |
2004 | error = ENXIO; |
2005 | IFCQ_UNLOCK(ifq); |
2006 | break; |
2007 | } |
2008 | bcopy(src: &iflpr->iflpr_output_tbr_rate, dst: &tb.rate, |
2009 | n: sizeof(tb.rate)); |
2010 | bcopy(src: &iflpr->iflpr_output_tbr_percent, dst: &tb.percent, |
2011 | n: sizeof(tb.percent)); |
2012 | error = ifclassq_tbr_set(ifq, &tb, TRUE); |
2013 | IFCQ_UNLOCK(ifq); |
2014 | break; |
2015 | } |
2016 | |
2017 | case SIOCGIFLINKPARAMS: { /* struct if_linkparamsreq */ |
2018 | u_int32_t sched_type = PKTSCHEDT_NONE, flags = 0; |
2019 | u_int64_t tbr_bw = 0, tbr_pct = 0; |
2020 | |
2021 | IFCQ_LOCK(ifq); |
2022 | |
2023 | if (IFCQ_IS_ENABLED(ifq)) { |
2024 | sched_type = ifq->ifcq_type; |
2025 | } |
2026 | |
2027 | bcopy(src: &sched_type, dst: &iflpr->iflpr_output_sched, |
2028 | n: sizeof(iflpr->iflpr_output_sched)); |
2029 | |
2030 | if (IFCQ_TBR_IS_ENABLED(ifq)) { |
2031 | tbr_bw = ifq->ifcq_tbr.tbr_rate_raw; |
2032 | tbr_pct = ifq->ifcq_tbr.tbr_percent; |
2033 | } |
2034 | bcopy(src: &tbr_bw, dst: &iflpr->iflpr_output_tbr_rate, |
2035 | n: sizeof(iflpr->iflpr_output_tbr_rate)); |
2036 | bcopy(src: &tbr_pct, dst: &iflpr->iflpr_output_tbr_percent, |
2037 | n: sizeof(iflpr->iflpr_output_tbr_percent)); |
2038 | IFCQ_UNLOCK(ifq); |
2039 | |
2040 | if (ifp->if_output_sched_model == |
2041 | IFNET_SCHED_MODEL_DRIVER_MANAGED) { |
2042 | flags |= IFLPRF_DRVMANAGED; |
2043 | } |
2044 | bcopy(src: &flags, dst: &iflpr->iflpr_flags, n: sizeof(iflpr->iflpr_flags)); |
2045 | bcopy(src: &ifp->if_output_bw, dst: &iflpr->iflpr_output_bw, |
2046 | n: sizeof(iflpr->iflpr_output_bw)); |
2047 | bcopy(src: &ifp->if_input_bw, dst: &iflpr->iflpr_input_bw, |
2048 | n: sizeof(iflpr->iflpr_input_bw)); |
2049 | bcopy(src: &ifp->if_output_lt, dst: &iflpr->iflpr_output_lt, |
2050 | n: sizeof(iflpr->iflpr_output_lt)); |
2051 | bcopy(src: &ifp->if_input_lt, dst: &iflpr->iflpr_input_lt, |
2052 | n: sizeof(iflpr->iflpr_input_lt)); |
2053 | |
2054 | #if SKYWALK |
2055 | if (ifp->if_input_netem != NULL) { |
2056 | netem_get_params(ne: ifp->if_input_netem, |
2057 | p: &iflpr->iflpr_input_netem); |
2058 | } |
2059 | #endif /* SKYWALK */ |
2060 | if (ifp->if_output_netem != NULL) { |
2061 | netem_get_params(ne: ifp->if_output_netem, |
2062 | p: &iflpr->iflpr_output_netem); |
2063 | } |
2064 | |
2065 | break; |
2066 | } |
2067 | |
2068 | default: |
2069 | VERIFY(0); |
2070 | /* NOTREACHED */ |
2071 | } |
2072 | |
2073 | return error; |
2074 | } |
2075 | |
2076 | static __attribute__((noinline)) int |
2077 | ifioctl_qstats(struct ifnet *ifp, u_long cmd, caddr_t data) |
2078 | { |
2079 | struct if_qstatsreq *ifqr = (struct if_qstatsreq *)(void *)data; |
2080 | u_int32_t ifqr_len, ifqr_slot; |
2081 | uint32_t ifqr_grp_idx = 0; |
2082 | int error = 0; |
2083 | |
2084 | VERIFY(ifp != NULL); |
2085 | |
2086 | switch (cmd) { |
2087 | case SIOCGIFQUEUESTATS: { /* struct if_qstatsreq */ |
2088 | bcopy(src: &ifqr->ifqr_slot, dst: &ifqr_slot, n: sizeof(ifqr_slot)); |
2089 | bcopy(src: &ifqr->ifqr_grp_idx, dst: &ifqr_grp_idx, n: sizeof(ifqr_grp_idx)); |
2090 | bcopy(src: &ifqr->ifqr_len, dst: &ifqr_len, n: sizeof(ifqr_len)); |
2091 | |
2092 | if (ifqr_grp_idx > FQ_IF_MAX_GROUPS) { |
2093 | return EINVAL; |
2094 | } |
2095 | error = ifclassq_getqstats(ifp->if_snd, (uint8_t)ifqr_grp_idx, |
2096 | ifqr_slot, ifqr->ifqr_buf, &ifqr_len); |
2097 | if (error != 0) { |
2098 | ifqr_len = 0; |
2099 | } |
2100 | bcopy(src: &ifqr_len, dst: &ifqr->ifqr_len, n: sizeof(ifqr_len)); |
2101 | break; |
2102 | } |
2103 | |
2104 | default: |
2105 | VERIFY(0); |
2106 | /* NOTREACHED */ |
2107 | } |
2108 | |
2109 | return error; |
2110 | } |
2111 | |
2112 | static __attribute__((noinline)) int |
2113 | ifioctl_throttle(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) |
2114 | { |
2115 | struct if_throttlereq *ifthr = (struct if_throttlereq *)(void *)data; |
2116 | u_int32_t ifthr_level; |
2117 | int error = 0; |
2118 | |
2119 | VERIFY(ifp != NULL); |
2120 | |
2121 | switch (cmd) { |
2122 | case SIOCSIFTHROTTLE: { /* struct if_throttlereq */ |
2123 | /* |
2124 | * XXX: Use priv_check_cred() instead of root check? |
2125 | */ |
2126 | if ((error = proc_suser(p)) != 0) { |
2127 | break; |
2128 | } |
2129 | |
2130 | bcopy(src: &ifthr->ifthr_level, dst: &ifthr_level, n: sizeof(ifthr_level)); |
2131 | error = ifnet_set_throttle(ifp, ifthr_level); |
2132 | if (error == EALREADY) { |
2133 | error = 0; |
2134 | } |
2135 | break; |
2136 | } |
2137 | |
2138 | case SIOCGIFTHROTTLE: { /* struct if_throttlereq */ |
2139 | if ((error = ifnet_get_throttle(ifp, &ifthr_level)) == 0) { |
2140 | bcopy(src: &ifthr_level, dst: &ifthr->ifthr_level, |
2141 | n: sizeof(ifthr_level)); |
2142 | } |
2143 | break; |
2144 | } |
2145 | |
2146 | default: |
2147 | VERIFY(0); |
2148 | /* NOTREACHED */ |
2149 | } |
2150 | |
2151 | return error; |
2152 | } |
2153 | |
2154 | static int |
2155 | ifioctl_getnetagents(struct ifnet *ifp, u_int32_t *count, user_addr_t uuid_p) |
2156 | { |
2157 | int error = 0; |
2158 | u_int32_t index = 0; |
2159 | u_int32_t valid_netagent_count = 0; |
2160 | *count = 0; |
2161 | |
2162 | ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_SHARED); |
2163 | |
2164 | if (ifp->if_agentids != NULL) { |
2165 | for (index = 0; index < ifp->if_agentcount; index++) { |
2166 | uuid_t *netagent_uuid = &(ifp->if_agentids[index]); |
2167 | if (!uuid_is_null(uu: *netagent_uuid)) { |
2168 | if (uuid_p != USER_ADDR_NULL) { |
2169 | error = copyout(netagent_uuid, |
2170 | uuid_p + sizeof(uuid_t) * valid_netagent_count, |
2171 | sizeof(uuid_t)); |
2172 | if (error != 0) { |
2173 | return error; |
2174 | } |
2175 | } |
2176 | valid_netagent_count++; |
2177 | } |
2178 | } |
2179 | } |
2180 | *count = valid_netagent_count; |
2181 | |
2182 | return 0; |
2183 | } |
2184 | |
2185 | #define IF_MAXAGENTS 64 |
2186 | #define IF_AGENT_INCREMENT 8 |
2187 | int |
2188 | if_add_netagent_locked(struct ifnet *ifp, uuid_t new_agent_uuid) |
2189 | { |
2190 | VERIFY(ifp != NULL); |
2191 | |
2192 | uuid_t *first_empty_slot = NULL; |
2193 | u_int32_t index = 0; |
2194 | bool already_added = FALSE; |
2195 | |
2196 | if (ifp->if_agentids != NULL) { |
2197 | for (index = 0; index < ifp->if_agentcount; index++) { |
2198 | uuid_t *netagent_uuid = &(ifp->if_agentids[index]); |
2199 | if (uuid_compare(uu1: *netagent_uuid, uu2: new_agent_uuid) == 0) { |
2200 | /* Already present, ignore */ |
2201 | already_added = TRUE; |
2202 | break; |
2203 | } |
2204 | if (first_empty_slot == NULL && |
2205 | uuid_is_null(uu: *netagent_uuid)) { |
2206 | first_empty_slot = netagent_uuid; |
2207 | } |
2208 | } |
2209 | } |
2210 | if (already_added) { |
2211 | /* Already added agent, don't return an error */ |
2212 | return 0; |
2213 | } |
2214 | if (first_empty_slot == NULL) { |
2215 | if (ifp->if_agentcount >= IF_MAXAGENTS) { |
2216 | /* No room for another netagent UUID, bail */ |
2217 | return ENOMEM; |
2218 | } else { |
2219 | /* Calculate new array size */ |
2220 | u_int32_t new_agent_count = |
2221 | MIN(ifp->if_agentcount + IF_AGENT_INCREMENT, |
2222 | IF_MAXAGENTS); |
2223 | |
2224 | /* Reallocate array */ |
2225 | uuid_t *new_agent_array = krealloc_data(ifp->if_agentids, |
2226 | sizeof(uuid_t) * ifp->if_agentcount, |
2227 | sizeof(uuid_t) * new_agent_count, |
2228 | Z_WAITOK | Z_ZERO); |
2229 | if (new_agent_array == NULL) { |
2230 | return ENOMEM; |
2231 | } |
2232 | |
2233 | /* Save new array */ |
2234 | ifp->if_agentids = new_agent_array; |
2235 | |
2236 | /* Set first empty slot */ |
2237 | first_empty_slot = |
2238 | &(ifp->if_agentids[ifp->if_agentcount]); |
2239 | |
2240 | /* Save new array length */ |
2241 | ifp->if_agentcount = new_agent_count; |
2242 | } |
2243 | } |
2244 | uuid_copy(dst: *first_empty_slot, src: new_agent_uuid); |
2245 | netagent_post_updated_interfaces(uuid: new_agent_uuid); |
2246 | return 0; |
2247 | } |
2248 | |
2249 | int |
2250 | if_add_netagent(struct ifnet *ifp, uuid_t new_agent_uuid) |
2251 | { |
2252 | VERIFY(ifp != NULL); |
2253 | |
2254 | ifnet_lock_exclusive(ifp); |
2255 | |
2256 | int error = if_add_netagent_locked(ifp, new_agent_uuid); |
2257 | |
2258 | ifnet_lock_done(ifp); |
2259 | |
2260 | return error; |
2261 | } |
2262 | |
2263 | static int |
2264 | if_delete_netagent_locked(struct ifnet *ifp, uuid_t remove_agent_uuid) |
2265 | { |
2266 | u_int32_t index = 0; |
2267 | bool removed_agent_id = FALSE; |
2268 | |
2269 | if (ifp->if_agentids != NULL) { |
2270 | for (index = 0; index < ifp->if_agentcount; index++) { |
2271 | uuid_t *netagent_uuid = &(ifp->if_agentids[index]); |
2272 | if (uuid_compare(uu1: *netagent_uuid, |
2273 | uu2: remove_agent_uuid) == 0) { |
2274 | uuid_clear(uu: *netagent_uuid); |
2275 | removed_agent_id = TRUE; |
2276 | break; |
2277 | } |
2278 | } |
2279 | } |
2280 | if (removed_agent_id) { |
2281 | netagent_post_updated_interfaces(uuid: remove_agent_uuid); |
2282 | } |
2283 | |
2284 | return 0; |
2285 | } |
2286 | |
2287 | int |
2288 | if_delete_netagent(struct ifnet *ifp, uuid_t remove_agent_uuid) |
2289 | { |
2290 | VERIFY(ifp != NULL); |
2291 | |
2292 | ifnet_lock_exclusive(ifp); |
2293 | |
2294 | int error = if_delete_netagent_locked(ifp, remove_agent_uuid); |
2295 | |
2296 | ifnet_lock_done(ifp); |
2297 | |
2298 | return error; |
2299 | } |
2300 | |
2301 | boolean_t |
2302 | if_check_netagent(struct ifnet *ifp, uuid_t find_agent_uuid) |
2303 | { |
2304 | boolean_t found = FALSE; |
2305 | |
2306 | if (!ifp || uuid_is_null(uu: find_agent_uuid)) { |
2307 | return FALSE; |
2308 | } |
2309 | |
2310 | ifnet_lock_shared(ifp); |
2311 | |
2312 | if (ifp->if_agentids != NULL) { |
2313 | for (uint32_t index = 0; index < ifp->if_agentcount; index++) { |
2314 | if (uuid_compare(uu1: ifp->if_agentids[index], uu2: find_agent_uuid) == 0) { |
2315 | found = TRUE; |
2316 | break; |
2317 | } |
2318 | } |
2319 | } |
2320 | |
2321 | ifnet_lock_done(ifp); |
2322 | |
2323 | return found; |
2324 | } |
2325 | |
2326 | static __attribute__((noinline)) int |
2327 | ifioctl_netagent(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) |
2328 | { |
2329 | struct if_agentidreq *ifar = (struct if_agentidreq *)(void *)data; |
2330 | union { |
2331 | struct if_agentidsreq32 s32; |
2332 | struct if_agentidsreq64 s64; |
2333 | } u; |
2334 | int error = 0; |
2335 | |
2336 | VERIFY(ifp != NULL); |
2337 | |
2338 | /* Get an io ref count if the interface is attached */ |
2339 | if (!ifnet_is_attached(ifp, refio: 1)) { |
2340 | return EOPNOTSUPP; |
2341 | } |
2342 | |
2343 | if (cmd == SIOCAIFAGENTID || |
2344 | cmd == SIOCDIFAGENTID) { |
2345 | ifnet_lock_exclusive(ifp); |
2346 | } else { |
2347 | ifnet_lock_shared(ifp); |
2348 | } |
2349 | |
2350 | switch (cmd) { |
2351 | case SIOCAIFAGENTID: { /* struct if_agentidreq */ |
2352 | // TODO: Use priv_check_cred() instead of root check |
2353 | if ((error = proc_suser(p)) != 0) { |
2354 | break; |
2355 | } |
2356 | error = if_add_netagent_locked(ifp, new_agent_uuid: ifar->ifar_uuid); |
2357 | break; |
2358 | } |
2359 | case SIOCDIFAGENTID: { /* struct if_agentidreq */ |
2360 | // TODO: Use priv_check_cred() instead of root check |
2361 | if ((error = proc_suser(p)) != 0) { |
2362 | break; |
2363 | } |
2364 | error = if_delete_netagent_locked(ifp, remove_agent_uuid: ifar->ifar_uuid); |
2365 | break; |
2366 | } |
2367 | case SIOCGIFAGENTIDS32: { /* struct if_agentidsreq32 */ |
2368 | bcopy(src: data, dst: &u.s32, n: sizeof(u.s32)); |
2369 | error = ifioctl_getnetagents(ifp, count: &u.s32.ifar_count, |
2370 | uuid_p: u.s32.ifar_uuids); |
2371 | if (error == 0) { |
2372 | bcopy(src: &u.s32, dst: data, n: sizeof(u.s32)); |
2373 | } |
2374 | break; |
2375 | } |
2376 | case SIOCGIFAGENTIDS64: { /* struct if_agentidsreq64 */ |
2377 | bcopy(src: data, dst: &u.s64, n: sizeof(u.s64)); |
2378 | error = ifioctl_getnetagents(ifp, count: &u.s64.ifar_count, |
2379 | CAST_USER_ADDR_T(u.s64.ifar_uuids)); |
2380 | if (error == 0) { |
2381 | bcopy(src: &u.s64, dst: data, n: sizeof(u.s64)); |
2382 | } |
2383 | break; |
2384 | } |
2385 | default: |
2386 | VERIFY(0); |
2387 | /* NOTREACHED */ |
2388 | } |
2389 | |
2390 | ifnet_lock_done(ifp); |
2391 | ifnet_decr_iorefcnt(ifp); |
2392 | |
2393 | return error; |
2394 | } |
2395 | |
2396 | void |
2397 | ifnet_clear_netagent(uuid_t netagent_uuid) |
2398 | { |
2399 | struct ifnet *ifp = NULL; |
2400 | u_int32_t index = 0; |
2401 | |
2402 | ifnet_head_lock_shared(); |
2403 | |
2404 | TAILQ_FOREACH(ifp, &ifnet_head, if_link) { |
2405 | ifnet_lock_shared(ifp); |
2406 | if (ifp->if_agentids != NULL) { |
2407 | for (index = 0; index < ifp->if_agentcount; index++) { |
2408 | uuid_t *ifp_netagent_uuid = &(ifp->if_agentids[index]); |
2409 | if (uuid_compare(uu1: *ifp_netagent_uuid, uu2: netagent_uuid) == 0) { |
2410 | uuid_clear(uu: *ifp_netagent_uuid); |
2411 | } |
2412 | } |
2413 | } |
2414 | ifnet_lock_done(ifp); |
2415 | } |
2416 | |
2417 | ifnet_head_done(); |
2418 | } |
2419 | |
2420 | void |
2421 | ifnet_increment_generation(ifnet_t interface) |
2422 | { |
2423 | OSIncrementAtomic(&interface->if_generation); |
2424 | } |
2425 | |
2426 | u_int32_t |
2427 | ifnet_get_generation(ifnet_t interface) |
2428 | { |
2429 | return interface->if_generation; |
2430 | } |
2431 | |
2432 | void |
2433 | ifnet_remove_from_ordered_list(struct ifnet *ifp) |
2434 | { |
2435 | ifnet_head_assert_exclusive(); |
2436 | |
2437 | // Remove from list |
2438 | TAILQ_REMOVE(&ifnet_ordered_head, ifp, if_ordered_link); |
2439 | ifp->if_ordered_link.tqe_next = NULL; |
2440 | ifp->if_ordered_link.tqe_prev = NULL; |
2441 | |
2442 | // Update ordered count |
2443 | VERIFY(if_ordered_count > 0); |
2444 | if_ordered_count--; |
2445 | } |
2446 | |
2447 | static int |
2448 | ifnet_reset_order(u_int32_t *ordered_indices, u_int32_t count) |
2449 | { |
2450 | struct ifnet *ifp = NULL; |
2451 | int error = 0; |
2452 | |
2453 | if (if_verbose != 0) { |
2454 | os_log(OS_LOG_DEFAULT, "%s: count %u" , __func__, count); |
2455 | } |
2456 | |
2457 | ifnet_head_lock_exclusive(); |
2458 | for (u_int32_t order_index = 0; order_index < count; order_index++) { |
2459 | if (ordered_indices[order_index] == IFSCOPE_NONE || |
2460 | ordered_indices[order_index] > (uint32_t)if_index) { |
2461 | error = EINVAL; |
2462 | ifnet_head_done(); |
2463 | return error; |
2464 | } |
2465 | } |
2466 | // Flush current ordered list |
2467 | for (ifp = TAILQ_FIRST(&ifnet_ordered_head); ifp != NULL; |
2468 | ifp = TAILQ_FIRST(&ifnet_ordered_head)) { |
2469 | ifnet_lock_exclusive(ifp); |
2470 | ifnet_remove_from_ordered_list(ifp); |
2471 | ifnet_lock_done(ifp); |
2472 | } |
2473 | |
2474 | VERIFY(if_ordered_count == 0); |
2475 | |
2476 | for (u_int32_t order_index = 0; order_index < count; order_index++) { |
2477 | u_int32_t interface_index = ordered_indices[order_index]; |
2478 | ifp = ifindex2ifnet[interface_index]; |
2479 | if (ifp == NULL) { |
2480 | continue; |
2481 | } |
2482 | ifnet_lock_exclusive(ifp); |
2483 | TAILQ_INSERT_TAIL(&ifnet_ordered_head, ifp, if_ordered_link); |
2484 | ifnet_lock_done(ifp); |
2485 | if_ordered_count++; |
2486 | } |
2487 | |
2488 | ifnet_head_done(); |
2489 | |
2490 | necp_update_all_clients(); |
2491 | |
2492 | return error; |
2493 | } |
2494 | |
2495 | #if (DEBUG || DEVELOPMENT) |
2496 | static int |
2497 | ifnet_get_ordered_indices(u_int32_t *ordered_indices, uint32_t *count) |
2498 | { |
2499 | struct ifnet *ifp = NULL; |
2500 | int error = 0; |
2501 | uint32_t order_index = 0; |
2502 | |
2503 | ifnet_head_lock_exclusive(); |
2504 | |
2505 | if (*count < if_ordered_count) { |
2506 | ifnet_head_done(); |
2507 | return ENOBUFS; |
2508 | } |
2509 | |
2510 | TAILQ_FOREACH(ifp, &ifnet_ordered_head, if_ordered_link) { |
2511 | if (order_index >= if_ordered_count) { |
2512 | break; |
2513 | } |
2514 | ordered_indices[order_index++] = ifp->if_index; |
2515 | } |
2516 | *count = order_index; |
2517 | ifnet_head_done(); |
2518 | |
2519 | return error; |
2520 | } |
2521 | #endif /* (DEBUG || DEVELOPMENT) */ |
2522 | |
2523 | int |
2524 | if_set_qosmarking_mode(struct ifnet *ifp, u_int32_t mode) |
2525 | { |
2526 | int error = 0; |
2527 | u_int32_t old_mode = ifp->if_qosmarking_mode; |
2528 | |
2529 | switch (mode) { |
2530 | case IFRTYPE_QOSMARKING_MODE_NONE: |
2531 | ifp->if_qosmarking_mode = IFRTYPE_QOSMARKING_MODE_NONE; |
2532 | break; |
2533 | case IFRTYPE_QOSMARKING_FASTLANE: |
2534 | case IFRTYPE_QOSMARKING_RFC4594: |
2535 | ifp->if_qosmarking_mode = mode; |
2536 | break; |
2537 | #if (DEBUG || DEVELOPMENT) |
2538 | case IFRTYPE_QOSMARKING_CUSTOM: |
2539 | ifp->if_qosmarking_mode = mode; |
2540 | break; |
2541 | #endif /* (DEBUG || DEVELOPMENT) */ |
2542 | default: |
2543 | error = EINVAL; |
2544 | break; |
2545 | } |
2546 | if (error == 0 && old_mode != ifp->if_qosmarking_mode) { |
2547 | dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_QOS_MODE_CHANGED, |
2548 | NULL, 0, FALSE); |
2549 | } |
2550 | return error; |
2551 | } |
2552 | |
2553 | static __attribute__((noinline)) int |
2554 | ifioctl_iforder(u_long cmd, caddr_t data) |
2555 | { |
2556 | int error = 0; |
2557 | u_int32_t *ordered_indices = NULL; |
2558 | size_t ordered_indices_length = 0; |
2559 | |
2560 | if (data == NULL) { |
2561 | return EINVAL; |
2562 | } |
2563 | |
2564 | switch (cmd) { |
2565 | case SIOCSIFORDER: { /* struct if_order */ |
2566 | struct if_order *ifo = (struct if_order *)(void *)data; |
2567 | |
2568 | if (ifo->ifo_count > (u_int32_t)if_index) { |
2569 | error = EINVAL; |
2570 | break; |
2571 | } |
2572 | |
2573 | ordered_indices_length = ifo->ifo_count * sizeof(u_int32_t); |
2574 | if (ordered_indices_length > 0) { |
2575 | if (ifo->ifo_ordered_indices == USER_ADDR_NULL) { |
2576 | error = EINVAL; |
2577 | break; |
2578 | } |
2579 | ordered_indices = (u_int32_t *)kalloc_data(ordered_indices_length, |
2580 | Z_WAITOK); |
2581 | if (ordered_indices == NULL) { |
2582 | error = ENOMEM; |
2583 | break; |
2584 | } |
2585 | |
2586 | error = copyin(CAST_USER_ADDR_T(ifo->ifo_ordered_indices), |
2587 | ordered_indices, ordered_indices_length); |
2588 | if (error != 0) { |
2589 | break; |
2590 | } |
2591 | |
2592 | /* ordered_indices should not contain duplicates */ |
2593 | bool found_duplicate = FALSE; |
2594 | for (uint32_t i = 0; i < (ifo->ifo_count - 1) && !found_duplicate; i++) { |
2595 | for (uint32_t j = i + 1; j < ifo->ifo_count && !found_duplicate; j++) { |
2596 | if (ordered_indices[j] == ordered_indices[i]) { |
2597 | error = EINVAL; |
2598 | found_duplicate = TRUE; |
2599 | break; |
2600 | } |
2601 | } |
2602 | } |
2603 | if (found_duplicate) { |
2604 | break; |
2605 | } |
2606 | |
2607 | error = ifnet_reset_order(ordered_indices, count: ifo->ifo_count); |
2608 | } else { |
2609 | // Clear the list |
2610 | error = ifnet_reset_order(NULL, count: 0); |
2611 | } |
2612 | break; |
2613 | } |
2614 | |
2615 | case SIOCGIFORDER: { |
2616 | #if (DEBUG || DEVELOPMENT) |
2617 | struct if_order *ifo = (struct if_order *)(void *)data; |
2618 | uint32_t count; |
2619 | |
2620 | if (ifo->ifo_ordered_indices == 0) { |
2621 | ifo->ifo_count = if_ordered_count; |
2622 | break; |
2623 | } |
2624 | |
2625 | count = ifo->ifo_count; |
2626 | if (count == 0) { |
2627 | error = EINVAL; |
2628 | break; |
2629 | } |
2630 | |
2631 | ordered_indices_length = count * sizeof(uint32_t); |
2632 | ordered_indices = (uint32_t *)kalloc_data(ordered_indices_length, |
2633 | Z_WAITOK | Z_ZERO); |
2634 | if (ordered_indices == NULL) { |
2635 | error = ENOMEM; |
2636 | break; |
2637 | } |
2638 | |
2639 | error = ifnet_get_ordered_indices(ordered_indices, &count); |
2640 | if (error == 0) { |
2641 | ifo->ifo_count = count; |
2642 | error = copyout((caddr_t)ordered_indices, |
2643 | CAST_USER_ADDR_T(ifo->ifo_ordered_indices), |
2644 | count * sizeof(uint32_t)); |
2645 | } |
2646 | #else /* (DEBUG || DEVELOPMENT) */ |
2647 | error = EOPNOTSUPP; |
2648 | #endif /* (DEBUG || DEVELOPMENT) */ |
2649 | |
2650 | break; |
2651 | } |
2652 | |
2653 | default: { |
2654 | VERIFY(0); |
2655 | /* NOTREACHED */ |
2656 | } |
2657 | } |
2658 | |
2659 | if (ordered_indices != NULL) { |
2660 | kfree_data(ordered_indices, ordered_indices_length); |
2661 | } |
2662 | |
2663 | return error; |
2664 | } |
2665 | |
2666 | static __attribute__((noinline)) int |
2667 | ifioctl_networkid(struct ifnet *ifp, caddr_t data) |
2668 | { |
2669 | struct if_netidreq *ifnetidr = (struct if_netidreq *)(void *)data; |
2670 | int error = 0; |
2671 | int len = ifnetidr->ifnetid_len; |
2672 | |
2673 | VERIFY(ifp != NULL); |
2674 | |
2675 | if (len > sizeof(ifnetidr->ifnetid)) { |
2676 | error = EINVAL; |
2677 | goto end; |
2678 | } |
2679 | |
2680 | if (len == 0) { |
2681 | bzero(s: &ifp->network_id, n: sizeof(ifp->network_id)); |
2682 | } else if (len > sizeof(ifp->network_id)) { |
2683 | error = EINVAL; |
2684 | goto end; |
2685 | } |
2686 | |
2687 | ifp->network_id_len = (uint8_t)len; |
2688 | bcopy(src: data, dst: ifp->network_id, n: len); |
2689 | end: |
2690 | return error; |
2691 | } |
2692 | |
2693 | static __attribute__((noinline)) int |
2694 | ifioctl_netsignature(struct ifnet *ifp, u_long cmd, caddr_t data) |
2695 | { |
2696 | struct if_nsreq *ifnsr = (struct if_nsreq *)(void *)data; |
2697 | u_int16_t flags; |
2698 | int error = 0; |
2699 | |
2700 | VERIFY(ifp != NULL); |
2701 | |
2702 | switch (cmd) { |
2703 | case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ |
2704 | if (ifnsr->ifnsr_len > sizeof(ifnsr->ifnsr_data)) { |
2705 | error = EINVAL; |
2706 | break; |
2707 | } |
2708 | bcopy(src: &ifnsr->ifnsr_flags, dst: &flags, n: sizeof(flags)); |
2709 | error = ifnet_set_netsignature(ifp, ifnsr->ifnsr_family, |
2710 | ifnsr->ifnsr_len, flags, ifnsr->ifnsr_data); |
2711 | break; |
2712 | |
2713 | case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ |
2714 | ifnsr->ifnsr_len = sizeof(ifnsr->ifnsr_data); |
2715 | error = ifnet_get_netsignature(ifp, ifnsr->ifnsr_family, |
2716 | &ifnsr->ifnsr_len, &flags, ifnsr->ifnsr_data); |
2717 | if (error == 0) { |
2718 | bcopy(src: &flags, dst: &ifnsr->ifnsr_flags, n: sizeof(flags)); |
2719 | } else { |
2720 | ifnsr->ifnsr_len = 0; |
2721 | } |
2722 | break; |
2723 | |
2724 | default: |
2725 | VERIFY(0); |
2726 | /* NOTREACHED */ |
2727 | } |
2728 | |
2729 | return error; |
2730 | } |
2731 | |
2732 | static __attribute__((noinline)) int |
2733 | ifioctl_nat64prefix(struct ifnet *ifp, u_long cmd, caddr_t data) |
2734 | { |
2735 | struct if_nat64req *ifnat64 = (struct if_nat64req *)(void *)data; |
2736 | int error = 0; |
2737 | |
2738 | VERIFY(ifp != NULL); |
2739 | |
2740 | switch (cmd) { |
2741 | case SIOCSIFNAT64PREFIX: /* struct if_nat64req */ |
2742 | error = ifnet_set_nat64prefix(ifp, ifnat64->ifnat64_prefixes); |
2743 | if (error != 0) { |
2744 | ip6stat.ip6s_clat464_plat64_pfx_setfail++; |
2745 | } |
2746 | break; |
2747 | |
2748 | case SIOCGIFNAT64PREFIX: /* struct if_nat64req */ |
2749 | error = ifnet_get_nat64prefix(ifp, ifnat64->ifnat64_prefixes); |
2750 | if (error != 0) { |
2751 | ip6stat.ip6s_clat464_plat64_pfx_getfail++; |
2752 | } |
2753 | break; |
2754 | |
2755 | default: |
2756 | VERIFY(0); |
2757 | /* NOTREACHED */ |
2758 | } |
2759 | |
2760 | return error; |
2761 | } |
2762 | |
2763 | static __attribute__((noinline)) int |
2764 | ifioctl_clat46addr(struct ifnet *ifp, u_long cmd, caddr_t data) |
2765 | { |
2766 | struct if_clat46req *ifclat46 = (struct if_clat46req *)(void *)data; |
2767 | struct in6_ifaddr *ia6_clat = NULL; |
2768 | int error = 0; |
2769 | |
2770 | VERIFY(ifp != NULL); |
2771 | |
2772 | switch (cmd) { |
2773 | case SIOCGIFCLAT46ADDR: |
2774 | ia6_clat = in6ifa_ifpwithflag(ifp, IN6_IFF_CLAT46); |
2775 | if (ia6_clat == NULL) { |
2776 | error = ENOENT; |
2777 | break; |
2778 | } |
2779 | |
2780 | bcopy(src: &ia6_clat->ia_addr.sin6_addr, dst: &ifclat46->ifclat46_addr.v6_address, |
2781 | n: sizeof(ifclat46->ifclat46_addr.v6_address)); |
2782 | ifclat46->ifclat46_addr.v6_prefixlen = ia6_clat->ia_plen; |
2783 | ifa_remref(ifa: &ia6_clat->ia_ifa); |
2784 | break; |
2785 | default: |
2786 | VERIFY(0); |
2787 | /* NOTREACHED */ |
2788 | } |
2789 | |
2790 | return error; |
2791 | } |
2792 | |
2793 | #if SKYWALK |
2794 | static __attribute__((noinline)) int |
2795 | ifioctl_nexus(struct ifnet *ifp, u_long cmd, caddr_t data) |
2796 | { |
2797 | int error = 0; |
2798 | struct if_nexusreq *ifnr = (struct if_nexusreq *)(void *)data; |
2799 | |
2800 | switch (cmd) { |
2801 | case SIOCGIFNEXUS: /* struct if_nexusreq */ |
2802 | if (ifnr->ifnr_flags != 0) { |
2803 | error = EINVAL; |
2804 | break; |
2805 | } |
2806 | error = kern_nexus_get_netif_instance(ifp, nx_uuid: ifnr->ifnr_netif); |
2807 | if (error != 0) { |
2808 | break; |
2809 | } |
2810 | kern_nexus_get_flowswitch_instance(ifp, nx_uuid: ifnr->ifnr_flowswitch); |
2811 | break; |
2812 | default: |
2813 | VERIFY(0); |
2814 | /* NOTREACHED */ |
2815 | } |
2816 | |
2817 | return error; |
2818 | } |
2819 | #endif /* SKYWALK */ |
2820 | |
2821 | static int |
2822 | ifioctl_get_protolist(struct ifnet *ifp, u_int32_t * ret_count, |
2823 | user_addr_t ifpl) |
2824 | { |
2825 | u_int32_t actual_count; |
2826 | u_int32_t count; |
2827 | int error = 0; |
2828 | u_int32_t *list = NULL; |
2829 | |
2830 | /* find out how many */ |
2831 | count = if_get_protolist(ifp, NULL, count: 0); |
2832 | if (ifpl == USER_ADDR_NULL) { |
2833 | goto done; |
2834 | } |
2835 | |
2836 | /* copy out how many there's space for */ |
2837 | if (*ret_count < count) { |
2838 | count = *ret_count; |
2839 | } |
2840 | if (count == 0) { |
2841 | goto done; |
2842 | } |
2843 | list = (u_int32_t *)kalloc_data(count * sizeof(*list), Z_WAITOK | Z_ZERO); |
2844 | if (list == NULL) { |
2845 | error = ENOMEM; |
2846 | goto done; |
2847 | } |
2848 | actual_count = if_get_protolist(ifp, protolist: list, count); |
2849 | if (actual_count < count) { |
2850 | count = actual_count; |
2851 | } |
2852 | if (count != 0) { |
2853 | error = copyout((caddr_t)list, ifpl, count * sizeof(*list)); |
2854 | } |
2855 | |
2856 | done: |
2857 | if (list != NULL) { |
2858 | if_free_protolist(list); |
2859 | } |
2860 | *ret_count = count; |
2861 | return error; |
2862 | } |
2863 | |
2864 | static __attribute__((noinline)) int |
2865 | ifioctl_protolist(struct ifnet *ifp, u_long cmd, caddr_t data) |
2866 | { |
2867 | int error = 0; |
2868 | |
2869 | switch (cmd) { |
2870 | case SIOCGIFPROTOLIST32: { /* struct if_protolistreq32 */ |
2871 | struct if_protolistreq32 ifpl; |
2872 | |
2873 | bcopy(src: data, dst: &ifpl, n: sizeof(ifpl)); |
2874 | if (ifpl.ifpl_reserved != 0) { |
2875 | error = EINVAL; |
2876 | break; |
2877 | } |
2878 | error = ifioctl_get_protolist(ifp, ret_count: &ifpl.ifpl_count, |
2879 | CAST_USER_ADDR_T(ifpl.ifpl_list)); |
2880 | bcopy(src: &ifpl, dst: data, n: sizeof(ifpl)); |
2881 | break; |
2882 | } |
2883 | case SIOCGIFPROTOLIST64: { /* struct if_protolistreq64 */ |
2884 | struct if_protolistreq64 ifpl; |
2885 | |
2886 | bcopy(src: data, dst: &ifpl, n: sizeof(ifpl)); |
2887 | if (ifpl.ifpl_reserved != 0) { |
2888 | error = EINVAL; |
2889 | break; |
2890 | } |
2891 | error = ifioctl_get_protolist(ifp, ret_count: &ifpl.ifpl_count, |
2892 | CAST_USER_ADDR_T(ifpl.ifpl_list)); |
2893 | bcopy(src: &ifpl, dst: data, n: sizeof(ifpl)); |
2894 | break; |
2895 | } |
2896 | default: |
2897 | VERIFY(0); |
2898 | /* NOTREACHED */ |
2899 | } |
2900 | |
2901 | return error; |
2902 | } |
2903 | |
2904 | /* |
2905 | * List the ioctl()s we can perform on restricted INTCOPROC interfaces. |
2906 | */ |
2907 | static bool |
2908 | ifioctl_restrict_intcoproc(unsigned long cmd, const char *ifname, |
2909 | struct ifnet *ifp, struct proc *p) |
2910 | { |
2911 | if (intcoproc_unrestricted) { |
2912 | return false; |
2913 | } |
2914 | if (proc_pid(p) == 0) { |
2915 | return false; |
2916 | } |
2917 | if (ifname) { |
2918 | ifp = ifunit(name: ifname); |
2919 | } |
2920 | if (ifp == NULL) { |
2921 | return false; |
2922 | } |
2923 | if (!IFNET_IS_INTCOPROC(ifp)) { |
2924 | return false; |
2925 | } |
2926 | switch (cmd) { |
2927 | case SIOCGIFBRDADDR: |
2928 | case SIOCGIFCONF32: |
2929 | case SIOCGIFCONF64: |
2930 | case SIOCGIFFLAGS: |
2931 | case SIOCGIFEFLAGS: |
2932 | case SIOCGIFCAP: |
2933 | case SIOCGIFMETRIC: |
2934 | case SIOCGIFMTU: |
2935 | case SIOCGIFPHYS: |
2936 | case SIOCGIFTYPE: |
2937 | case SIOCGIFFUNCTIONALTYPE: |
2938 | case SIOCGIFPSRCADDR: |
2939 | case SIOCGIFPDSTADDR: |
2940 | case SIOCGIFGENERIC: |
2941 | case SIOCGIFDEVMTU: |
2942 | case SIOCGIFVLAN: |
2943 | case SIOCGIFBOND: |
2944 | case SIOCGIFWAKEFLAGS: |
2945 | case SIOCGIFGETRTREFCNT: |
2946 | case SIOCGIFOPPORTUNISTIC: |
2947 | case SIOCGIFLINKQUALITYMETRIC: |
2948 | case SIOCGIFLOG: |
2949 | case SIOCGIFDELEGATE: |
2950 | case SIOCGIFEXPENSIVE: |
2951 | case SIOCGIFINTERFACESTATE: |
2952 | case SIOCGIFPROBECONNECTIVITY: |
2953 | case SIOCGIFTIMESTAMPENABLED: |
2954 | case SIOCGECNMODE: |
2955 | case SIOCGQOSMARKINGMODE: |
2956 | case SIOCGQOSMARKINGENABLED: |
2957 | case SIOCGIFLOWINTERNET: |
2958 | case SIOCGIFSTATUS: |
2959 | case SIOCGIFMEDIA32: |
2960 | case SIOCGIFMEDIA64: |
2961 | case SIOCGIFXMEDIA32: |
2962 | case SIOCGIFXMEDIA64: |
2963 | case SIOCGIFDESC: |
2964 | case SIOCGIFLINKPARAMS: |
2965 | case SIOCGIFQUEUESTATS: |
2966 | case SIOCGIFTHROTTLE: |
2967 | case SIOCGIFAGENTIDS32: |
2968 | case SIOCGIFAGENTIDS64: |
2969 | case SIOCGIFNETSIGNATURE: |
2970 | case SIOCGIFINFO_IN6: |
2971 | case SIOCGIFAFLAG_IN6: |
2972 | case SIOCGNBRINFO_IN6: |
2973 | case SIOCGIFALIFETIME_IN6: |
2974 | case SIOCGIFNETMASK_IN6: |
2975 | #if SKYWALK |
2976 | case SIOCGIFNEXUS: |
2977 | #endif /* SKYWALK */ |
2978 | case SIOCGIFPROTOLIST32: |
2979 | case SIOCGIFPROTOLIST64: |
2980 | case SIOCGIFXFLAGS: |
2981 | case SIOCGIFNOTRAFFICSHAPING: |
2982 | case SIOCGIFGENERATIONID: |
2983 | case SIOCSIFDIRECTLINK: |
2984 | case SIOCGIFDIRECTLINK: |
2985 | return false; |
2986 | default: |
2987 | #if (DEBUG || DEVELOPMENT) |
2988 | printf("%s: cmd 0x%lx not allowed (pid %u)\n" , |
2989 | __func__, cmd, proc_pid(p)); |
2990 | #endif |
2991 | return true; |
2992 | } |
2993 | return false; |
2994 | } |
2995 | |
2996 | static bool |
2997 | ifioctl_restrict_management(unsigned long cmd, const char *ifname, |
2998 | struct ifnet *ifp, struct proc *p) |
2999 | { |
3000 | if (if_management_interface_check_needed == false) { |
3001 | return false; |
3002 | } |
3003 | if (management_control_unrestricted) { |
3004 | return false; |
3005 | } |
3006 | if (proc_pid(p) == 0) { |
3007 | return false; |
3008 | } |
3009 | if (ifname) { |
3010 | ifp = ifunit(name: ifname); |
3011 | } |
3012 | if (ifp == NULL) { |
3013 | return false; |
3014 | } |
3015 | if (!IFNET_IS_MANAGEMENT(ifp)) { |
3016 | return false; |
3017 | } |
3018 | /* |
3019 | * Allow all the "get" ioctls |
3020 | */ |
3021 | switch (cmd) { |
3022 | case SIOCGHIWAT: |
3023 | case SIOCGLOWAT: |
3024 | case SIOCGPGRP: |
3025 | case SIOCGIFFLAGS: |
3026 | case SIOCGIFMETRIC: |
3027 | case SIOCGIFADDR: |
3028 | case SIOCGIFDSTADDR: |
3029 | case SIOCGIFBRDADDR: |
3030 | case SIOCGIFCONF32: |
3031 | case SIOCGIFCONF64: |
3032 | case SIOCGIFNETMASK: |
3033 | case SIOCGIFMTU: |
3034 | case SIOCGIFPHYS: |
3035 | case SIOCGIFMEDIA32: |
3036 | case SIOCGIFMEDIA64: |
3037 | case SIOCGIFGENERIC: |
3038 | case SIOCGIFSTATUS: |
3039 | case SIOCGIFPSRCADDR: |
3040 | case SIOCGIFPDSTADDR: |
3041 | case SIOCGIFDEVMTU: |
3042 | case SIOCGIFALTMTU: |
3043 | case SIOCGIFBOND: |
3044 | case SIOCGIFXMEDIA32: |
3045 | case SIOCGIFXMEDIA64: |
3046 | case SIOCGIFCAP: |
3047 | case SIOCGDRVSPEC32: |
3048 | case SIOCGDRVSPEC64: |
3049 | case SIOCGIFVLAN: |
3050 | case SIOCGIFASYNCMAP: |
3051 | case SIOCGIFMAC: |
3052 | case SIOCGIFKPI: |
3053 | case SIOCGIFWAKEFLAGS: |
3054 | case SIOCGIFGETRTREFCNT: |
3055 | case SIOCGIFLINKQUALITYMETRIC: |
3056 | case SIOCGIFOPPORTUNISTIC: |
3057 | case SIOCGIFEFLAGS: |
3058 | case SIOCGIFDESC: |
3059 | case SIOCGIFLINKPARAMS: |
3060 | case SIOCGIFQUEUESTATS: |
3061 | case SIOCGIFTHROTTLE: |
3062 | case SIOCGASSOCIDS32: |
3063 | case SIOCGASSOCIDS64: |
3064 | case SIOCGCONNIDS32: |
3065 | case SIOCGCONNIDS64: |
3066 | case SIOCGCONNINFO32: |
3067 | case SIOCGCONNINFO64: |
3068 | case SIOCGCONNORDER: |
3069 | case SIOCGIFLOG: |
3070 | case SIOCGIFDELEGATE: |
3071 | case SIOCGIFLLADDR: |
3072 | case SIOCGIFTYPE: |
3073 | case SIOCGIFEXPENSIVE: |
3074 | case SIOCGIF2KCL: |
3075 | case SIOCGSTARTDELAY: |
3076 | case SIOCGIFAGENTIDS32: |
3077 | case SIOCGIFAGENTIDS64: |
3078 | case SIOCGIFAGENTDATA32: |
3079 | case SIOCGIFAGENTDATA64: |
3080 | case SIOCGIFINTERFACESTATE: |
3081 | case SIOCGIFPROBECONNECTIVITY: |
3082 | case SIOCGIFFUNCTIONALTYPE: |
3083 | case SIOCGIFNETSIGNATURE: |
3084 | case SIOCGECNMODE: |
3085 | case SIOCGIFORDER: |
3086 | case SIOCGQOSMARKINGMODE: |
3087 | case SIOCGQOSMARKINGENABLED: |
3088 | case SIOCGIFTIMESTAMPENABLED: |
3089 | case SIOCGIFAGENTLIST32: |
3090 | case SIOCGIFAGENTLIST64: |
3091 | case SIOCGIFLOWINTERNET: |
3092 | case SIOCGIFNAT64PREFIX: |
3093 | #if SKYWALK |
3094 | case SIOCGIFNEXUS: |
3095 | #endif /* SKYWALK */ |
3096 | case SIOCGIFPROTOLIST32: |
3097 | case SIOCGIFPROTOLIST64: |
3098 | case SIOCGIF6LOWPAN: |
3099 | case SIOCGIFTCPKAOMAX: |
3100 | case SIOCGIFLOWPOWER: |
3101 | case SIOCGIFCLAT46ADDR: |
3102 | case SIOCGIFMPKLOG: |
3103 | case SIOCGIFCONSTRAINED: |
3104 | case SIOCGIFXFLAGS: |
3105 | case SIOCGIFNOACKPRIO: |
3106 | case SIOCGETROUTERMODE: |
3107 | case SIOCGIFNOTRAFFICSHAPING: |
3108 | case SIOCGIFGENERATIONID: |
3109 | case SIOCSIFDIRECTLINK: |
3110 | case SIOCGIFDIRECTLINK: |
3111 | return false; |
3112 | default: |
3113 | if (!IOCurrentTaskHasEntitlement(MANAGEMENT_CONTROL_ENTITLEMENT)) { |
3114 | #if (DEBUG || DEVELOPMENT) |
3115 | printf("ifioctl_restrict_management: cmd 0x%lx on %s not allowed for %s:%u\n" , |
3116 | cmd, ifname, proc_name_address(p), proc_pid(p)); |
3117 | #endif |
3118 | return true; |
3119 | } |
3120 | return false; |
3121 | } |
3122 | return false; |
3123 | } |
3124 | |
3125 | /* |
3126 | * Given a media word, return one suitable for an application |
3127 | * using the original encoding. |
3128 | */ |
3129 | static int |
3130 | compat_media(int media) |
3131 | { |
3132 | if (IFM_TYPE(media) == IFM_ETHER && IFM_SUBTYPE(media) > IFM_OTHER) { |
3133 | media &= ~IFM_TMASK; |
3134 | media |= IFM_OTHER; |
3135 | } |
3136 | return media; |
3137 | } |
3138 | |
3139 | static int |
3140 | compat_ifmu_ulist(struct ifnet *ifp, u_long cmd, void *data) |
3141 | { |
3142 | struct ifmediareq *ifmr = (struct ifmediareq *)data; |
3143 | user_addr_t user_addr; |
3144 | int i; |
3145 | int *media_list = NULL; |
3146 | int error = 0; |
3147 | bool list_modified = false; |
3148 | |
3149 | user_addr = (cmd == SIOCGIFMEDIA64) ? |
3150 | CAST_USER_ADDR_T(((struct ifmediareq64 *)ifmr)->ifmu_ulist) : |
3151 | CAST_USER_ADDR_T(((struct ifmediareq32 *)ifmr)->ifmu_ulist); |
3152 | if (user_addr == USER_ADDR_NULL || ifmr->ifm_count == 0) { |
3153 | return 0; |
3154 | } |
3155 | media_list = (int *)kalloc_data(ifmr->ifm_count * sizeof(int), |
3156 | Z_WAITOK | Z_ZERO); |
3157 | if (media_list == NULL) { |
3158 | os_log_error(OS_LOG_DEFAULT, |
3159 | "%s: %s kalloc_data() failed" , |
3160 | __func__, ifp->if_xname); |
3161 | error = ENOMEM; |
3162 | goto done; |
3163 | } |
3164 | error = copyin(user_addr, media_list, ifmr->ifm_count * sizeof(int)); |
3165 | if (error != 0) { |
3166 | os_log_error(OS_LOG_DEFAULT, |
3167 | "%s: %s copyin() error %d" , |
3168 | __func__, ifp->if_xname, error); |
3169 | goto done; |
3170 | } |
3171 | for (i = 0; i < ifmr->ifm_count; i++) { |
3172 | int old_media, new_media; |
3173 | |
3174 | old_media = media_list[i]; |
3175 | |
3176 | new_media = compat_media(media: old_media); |
3177 | if (new_media == old_media) { |
3178 | continue; |
3179 | } |
3180 | if (if_verbose != 0) { |
3181 | os_log_info(OS_LOG_DEFAULT, |
3182 | "%s: %s converted extended media %08x to compat media %08x" , |
3183 | __func__, ifp->if_xname, old_media, new_media); |
3184 | } |
3185 | media_list[i] = new_media; |
3186 | list_modified = true; |
3187 | } |
3188 | if (list_modified) { |
3189 | error = copyout(media_list, user_addr, ifmr->ifm_count * sizeof(int)); |
3190 | if (error != 0) { |
3191 | os_log_error(OS_LOG_DEFAULT, |
3192 | "%s: %s copyout() error %d" , |
3193 | __func__, ifp->if_xname, error); |
3194 | goto done; |
3195 | } |
3196 | } |
3197 | done: |
3198 | if (media_list != NULL) { |
3199 | kfree_data(media_list, ifmr->ifm_count * sizeof(int)); |
3200 | } |
3201 | return error; |
3202 | } |
3203 | |
3204 | static int |
3205 | compat_ifmediareq(struct ifnet *ifp, u_long cmd, void *data) |
3206 | { |
3207 | struct ifmediareq *ifmr = (struct ifmediareq *)data; |
3208 | int error; |
3209 | |
3210 | ifmr->ifm_active = compat_media(media: ifmr->ifm_active); |
3211 | ifmr->ifm_current = compat_media(media: ifmr->ifm_current); |
3212 | |
3213 | error = compat_ifmu_ulist(ifp, cmd, data); |
3214 | |
3215 | return error; |
3216 | } |
3217 | |
3218 | static int |
3219 | ifioctl_get_media(struct ifnet *ifp, struct socket *so, u_long cmd, caddr_t data) |
3220 | { |
3221 | int error = 0; |
3222 | |
3223 | /* |
3224 | * An ifnet must not implement SIOCGIFXMEDIA as it gets the extended |
3225 | * media subtypes macros from <net/if_media.h> |
3226 | */ |
3227 | switch (cmd) { |
3228 | case SIOCGIFMEDIA32: |
3229 | case SIOCGIFXMEDIA32: |
3230 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), SIOCGIFMEDIA32, ioctl_arg: data); |
3231 | break; |
3232 | case SIOCGIFMEDIA64: |
3233 | case SIOCGIFXMEDIA64: |
3234 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), SIOCGIFMEDIA64, ioctl_arg: data); |
3235 | break; |
3236 | } |
3237 | if (if_verbose != 0 && error != 0) { |
3238 | os_log(OS_LOG_DEFAULT, "%s: first ifnet_ioctl(%s, %08lx) error %d" , |
3239 | __func__, ifp->if_xname, cmd, error); |
3240 | } |
3241 | if (error == 0 && (cmd == SIOCGIFMEDIA32 || cmd == SIOCGIFMEDIA64)) { |
3242 | error = compat_ifmediareq(ifp, cmd, data); |
3243 | } |
3244 | return error; |
3245 | } |
3246 | |
3247 | static errno_t |
3248 | null_proto_input(ifnet_t ifp, protocol_family_t protocol, mbuf_t packet, |
3249 | char *) |
3250 | { |
3251 | #pragma unused(protocol, packet, header) |
3252 | os_log(OS_LOG_DEFAULT, "null_proto_input unexpected packet on %s" , |
3253 | ifp->if_xname); |
3254 | return 0; |
3255 | } |
3256 | |
3257 | /* |
3258 | * Interface ioctls. |
3259 | * |
3260 | * Most of the routines called to handle the ioctls would end up being |
3261 | * tail-call optimized, which unfortunately causes this routine to |
3262 | * consume too much stack space; this is the reason for the "noinline" |
3263 | * attribute used on those routines. |
3264 | */ |
3265 | int |
3266 | ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) |
3267 | { |
3268 | char ifname[IFNAMSIZ + 1]; |
3269 | struct ifnet *ifp = NULL; |
3270 | struct ifstat *ifs = NULL; |
3271 | int error = 0; |
3272 | |
3273 | bzero(s: ifname, n: sizeof(ifname)); |
3274 | |
3275 | /* |
3276 | * ioctls which don't require ifp, or ifreq ioctls |
3277 | */ |
3278 | switch (cmd) { |
3279 | case OSIOCGIFCONF32: /* struct ifconf32 */ |
3280 | case SIOCGIFCONF32: /* struct ifconf32 */ |
3281 | case SIOCGIFCONF64: /* struct ifconf64 */ |
3282 | case OSIOCGIFCONF64: /* struct ifconf64 */ |
3283 | error = ifioctl_ifconf(cmd, data); |
3284 | goto done; |
3285 | |
3286 | case SIOCIFGCLONERS32: /* struct if_clonereq32 */ |
3287 | case SIOCIFGCLONERS64: /* struct if_clonereq64 */ |
3288 | error = ifioctl_ifclone(cmd, data); |
3289 | goto done; |
3290 | |
3291 | case SIOCGIFAGENTDATA32: /* struct netagent_req32 */ |
3292 | case SIOCGIFAGENTDATA64: /* struct netagent_req64 */ |
3293 | case SIOCGIFAGENTLIST32: /* struct netagentlist_req32 */ |
3294 | case SIOCGIFAGENTLIST64: /* struct netagentlist_req64 */ |
3295 | error = netagent_ioctl(cmd, data); |
3296 | goto done; |
3297 | |
3298 | case SIOCSIFORDER: /* struct if_order */ |
3299 | case SIOCGIFORDER: /* struct if_order */ |
3300 | error = ifioctl_iforder(cmd, data); |
3301 | goto done; |
3302 | |
3303 | case SIOCSIFDSTADDR: /* struct ifreq */ |
3304 | case SIOCSIFADDR: /* struct ifreq */ |
3305 | case SIOCSIFBRDADDR: /* struct ifreq */ |
3306 | case SIOCSIFNETMASK: /* struct ifreq */ |
3307 | case OSIOCGIFADDR: /* struct ifreq */ |
3308 | case OSIOCGIFDSTADDR: /* struct ifreq */ |
3309 | case OSIOCGIFBRDADDR: /* struct ifreq */ |
3310 | case OSIOCGIFNETMASK: /* struct ifreq */ |
3311 | case SIOCSIFKPI: /* struct ifreq */ |
3312 | if (so->so_proto == NULL) { |
3313 | error = EOPNOTSUPP; |
3314 | goto done; |
3315 | } |
3316 | OS_FALLTHROUGH; |
3317 | case SIOCIFCREATE: /* struct ifreq */ |
3318 | case SIOCIFCREATE2: /* struct ifreq */ |
3319 | case SIOCIFDESTROY: /* struct ifreq */ |
3320 | case SIOCGIFFLAGS: /* struct ifreq */ |
3321 | case SIOCGIFEFLAGS: /* struct ifreq */ |
3322 | case SIOCGIFCAP: /* struct ifreq */ |
3323 | case SIOCGIFMETRIC: /* struct ifreq */ |
3324 | case SIOCGIFMTU: /* struct ifreq */ |
3325 | case SIOCGIFPHYS: /* struct ifreq */ |
3326 | case SIOCSIFFLAGS: /* struct ifreq */ |
3327 | case SIOCSIFCAP: /* struct ifreq */ |
3328 | case SIOCSIFMANAGEMENT: /* struct ifreq */ |
3329 | case SIOCSATTACHPROTONULL: /* struct ifreq */ |
3330 | case SIOCSIFMETRIC: /* struct ifreq */ |
3331 | case SIOCSIFPHYS: /* struct ifreq */ |
3332 | case SIOCSIFMTU: /* struct ifreq */ |
3333 | case SIOCADDMULTI: /* struct ifreq */ |
3334 | case SIOCDELMULTI: /* struct ifreq */ |
3335 | case SIOCDIFPHYADDR: /* struct ifreq */ |
3336 | case SIOCSIFMEDIA: /* struct ifreq */ |
3337 | case SIOCSIFGENERIC: /* struct ifreq */ |
3338 | case SIOCSIFLLADDR: /* struct ifreq */ |
3339 | case SIOCSIFALTMTU: /* struct ifreq */ |
3340 | case SIOCSIFVLAN: /* struct ifreq */ |
3341 | case SIOCSIFBOND: /* struct ifreq */ |
3342 | case SIOCGIFLLADDR: /* struct ifreq */ |
3343 | case SIOCGIFTYPE: /* struct ifreq */ |
3344 | case SIOCGIFFUNCTIONALTYPE: /* struct ifreq */ |
3345 | case SIOCGIFPSRCADDR: /* struct ifreq */ |
3346 | case SIOCGIFPDSTADDR: /* struct ifreq */ |
3347 | case SIOCGIFGENERIC: /* struct ifreq */ |
3348 | case SIOCGIFDEVMTU: /* struct ifreq */ |
3349 | case SIOCGIFVLAN: /* struct ifreq */ |
3350 | case SIOCGIFBOND: /* struct ifreq */ |
3351 | case SIOCGIFWAKEFLAGS: /* struct ifreq */ |
3352 | case SIOCGIFGETRTREFCNT: /* struct ifreq */ |
3353 | case SIOCSIFOPPORTUNISTIC: /* struct ifreq */ |
3354 | case SIOCGIFOPPORTUNISTIC: /* struct ifreq */ |
3355 | case SIOCGIFLINKQUALITYMETRIC: /* struct ifreq */ |
3356 | case SIOCSIFLINKQUALITYMETRIC: /* struct ifreq */ |
3357 | case SIOCSIFLOG: /* struct ifreq */ |
3358 | case SIOCGIFLOG: /* struct ifreq */ |
3359 | case SIOCGIFDELEGATE: /* struct ifreq */ |
3360 | case SIOCGIFEXPENSIVE: /* struct ifreq */ |
3361 | case SIOCSIFEXPENSIVE: /* struct ifreq */ |
3362 | case SIOCSIF2KCL: /* struct ifreq */ |
3363 | case SIOCGIF2KCL: /* struct ifreq */ |
3364 | case SIOCSIFINTERFACESTATE: /* struct ifreq */ |
3365 | case SIOCGIFINTERFACESTATE: /* struct ifreq */ |
3366 | case SIOCSIFPROBECONNECTIVITY: /* struct ifreq */ |
3367 | case SIOCGIFPROBECONNECTIVITY: /* struct ifreq */ |
3368 | case SIOCGSTARTDELAY: /* struct ifreq */ |
3369 | case SIOCSIFTIMESTAMPENABLE: /* struct ifreq */ |
3370 | case SIOCSIFTIMESTAMPDISABLE: /* struct ifreq */ |
3371 | case SIOCGIFTIMESTAMPENABLED: /* struct ifreq */ |
3372 | #if (DEBUG || DEVELOPMENT) |
3373 | case SIOCSIFDISABLEOUTPUT: /* struct ifreq */ |
3374 | #endif /* (DEBUG || DEVELOPMENT) */ |
3375 | case SIOCSIFSUBFAMILY: /* struct ifreq */ |
3376 | case SIOCGECNMODE: /* struct ifreq */ |
3377 | case SIOCSECNMODE: |
3378 | case SIOCSQOSMARKINGMODE: /* struct ifreq */ |
3379 | case SIOCSQOSMARKINGENABLED: /* struct ifreq */ |
3380 | case SIOCGQOSMARKINGMODE: /* struct ifreq */ |
3381 | case SIOCGQOSMARKINGENABLED: /* struct ifreq */ |
3382 | case SIOCSIFLOWINTERNET: /* struct ifreq */ |
3383 | case SIOCGIFLOWINTERNET: /* struct ifreq */ |
3384 | case SIOCGIFLOWPOWER: /* struct ifreq */ |
3385 | case SIOCSIFLOWPOWER: /* struct ifreq */ |
3386 | case SIOCGIFMPKLOG: /* struct ifreq */ |
3387 | case SIOCSIFMPKLOG: /* struct ifreq */ |
3388 | case SIOCGIFCONSTRAINED: /* struct ifreq */ |
3389 | case SIOCSIFCONSTRAINED: /* struct ifreq */ |
3390 | case SIOCSIFESTTHROUGHPUT: /* struct ifreq */ |
3391 | case SIOCSIFRADIODETAILS: /* struct ifreq */ |
3392 | case SIOCGIFXFLAGS: /* struct ifreq */ |
3393 | case SIOCGIFNOACKPRIO: /* struct ifreq */ |
3394 | case SIOCSIFNOACKPRIO: /* struct ifreq */ |
3395 | case SIOCSIFMARKWAKEPKT: /* struct ifreq */ |
3396 | case SIOCSIFNOTRAFFICSHAPING: /* struct ifreq */ |
3397 | case SIOCGIFNOTRAFFICSHAPING: /* struct ifreq */ |
3398 | case SIOCGIFGENERATIONID: /* struct ifreq */ |
3399 | case SIOCSIFDIRECTLINK: /* struct ifreq */ |
3400 | case SIOCGIFDIRECTLINK: /* struct ifreq */ |
3401 | { /* struct ifreq */ |
3402 | struct ifreq ifr; |
3403 | bcopy(src: data, dst: &ifr, n: sizeof(ifr)); |
3404 | ifr.ifr_name[IFNAMSIZ - 1] = '\0'; |
3405 | bcopy(src: &ifr.ifr_name, dst: ifname, IFNAMSIZ); |
3406 | if (ifioctl_restrict_intcoproc(cmd, ifname, NULL, p) == true) { |
3407 | error = EPERM; |
3408 | goto done; |
3409 | } |
3410 | if (ifioctl_restrict_management(cmd, ifname, NULL, p) == true) { |
3411 | error = EPERM; |
3412 | goto done; |
3413 | } |
3414 | error = ifioctl_ifreq(so, cmd, &ifr, p); |
3415 | bcopy(src: &ifr, dst: data, n: sizeof(ifr)); |
3416 | goto done; |
3417 | } |
3418 | } |
3419 | |
3420 | /* |
3421 | * ioctls which require ifp. Note that we acquire dlil_ifnet_lock |
3422 | * here to ensure that the ifnet, if found, has been fully attached. |
3423 | */ |
3424 | dlil_if_lock(); |
3425 | switch (cmd) { |
3426 | case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ |
3427 | bcopy(src: ((struct in_aliasreq *)(void *)data)->ifra_name, |
3428 | dst: ifname, IFNAMSIZ); |
3429 | ifp = ifunit_ref(name: ifname); |
3430 | break; |
3431 | |
3432 | case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ |
3433 | bcopy(src: ((struct in6_aliasreq_32 *)(void *)data)->ifra_name, |
3434 | dst: ifname, IFNAMSIZ); |
3435 | ifp = ifunit_ref(name: ifname); |
3436 | break; |
3437 | |
3438 | case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ |
3439 | bcopy(src: ((struct in6_aliasreq_64 *)(void *)data)->ifra_name, |
3440 | dst: ifname, IFNAMSIZ); |
3441 | ifp = ifunit_ref(name: ifname); |
3442 | break; |
3443 | |
3444 | case SIOCGIFSTATUS: /* struct ifstat */ |
3445 | ifs = kalloc_type(struct ifstat, Z_WAITOK | Z_NOFAIL); |
3446 | bcopy(src: data, dst: ifs, n: sizeof(*ifs)); |
3447 | ifs->ifs_name[IFNAMSIZ - 1] = '\0'; |
3448 | bcopy(src: ifs->ifs_name, dst: ifname, IFNAMSIZ); |
3449 | ifp = ifunit_ref(name: ifname); |
3450 | break; |
3451 | |
3452 | case SIOCGIFMEDIA32: /* struct ifmediareq32 */ |
3453 | case SIOCGIFXMEDIA32: /* struct ifmediareq32 */ |
3454 | bcopy(src: ((struct ifmediareq32 *)(void *)data)->ifm_name, |
3455 | dst: ifname, IFNAMSIZ); |
3456 | ifp = ifunit_ref(name: ifname); |
3457 | break; |
3458 | |
3459 | case SIOCGIFMEDIA64: /* struct ifmediareq64 */ |
3460 | case SIOCGIFXMEDIA64: /* struct ifmediareq64 */ |
3461 | bcopy(src: ((struct ifmediareq64 *)(void *)data)->ifm_name, |
3462 | dst: ifname, IFNAMSIZ); |
3463 | ifp = ifunit_ref(name: ifname); |
3464 | break; |
3465 | |
3466 | case SIOCSIFDESC: /* struct if_descreq */ |
3467 | case SIOCGIFDESC: /* struct if_descreq */ |
3468 | bcopy(src: ((struct if_descreq *)(void *)data)->ifdr_name, |
3469 | dst: ifname, IFNAMSIZ); |
3470 | ifp = ifunit_ref(name: ifname); |
3471 | break; |
3472 | |
3473 | case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ |
3474 | case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ |
3475 | bcopy(src: ((struct if_linkparamsreq *)(void *)data)->iflpr_name, |
3476 | dst: ifname, IFNAMSIZ); |
3477 | ifp = ifunit_ref(name: ifname); |
3478 | break; |
3479 | |
3480 | case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ |
3481 | bcopy(src: ((struct if_qstatsreq *)(void *)data)->ifqr_name, |
3482 | dst: ifname, IFNAMSIZ); |
3483 | ifp = ifunit_ref(name: ifname); |
3484 | break; |
3485 | |
3486 | case SIOCSIFTHROTTLE: /* struct if_throttlereq */ |
3487 | case SIOCGIFTHROTTLE: /* struct if_throttlereq */ |
3488 | bcopy(src: ((struct if_throttlereq *)(void *)data)->ifthr_name, |
3489 | dst: ifname, IFNAMSIZ); |
3490 | ifp = ifunit_ref(name: ifname); |
3491 | break; |
3492 | |
3493 | case SIOCAIFAGENTID: /* struct if_agentidreq */ |
3494 | case SIOCDIFAGENTID: /* struct if_agentidreq */ |
3495 | case SIOCGIFAGENTIDS32: /* struct if_agentidsreq32 */ |
3496 | case SIOCGIFAGENTIDS64: /* struct if_agentidsreq64 */ |
3497 | bcopy(src: ((struct if_agentidreq *)(void *)data)->ifar_name, |
3498 | dst: ifname, IFNAMSIZ); |
3499 | ifp = ifunit_ref(name: ifname); |
3500 | break; |
3501 | |
3502 | case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ |
3503 | case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ |
3504 | bcopy(src: ((struct if_nsreq *)(void *)data)->ifnsr_name, |
3505 | dst: ifname, IFNAMSIZ); |
3506 | ifp = ifunit_ref(name: ifname); |
3507 | break; |
3508 | |
3509 | case SIOCSIFNETWORKID: /* struct if_netidreq */ |
3510 | bcopy(src: ((struct if_netidreq *)(void *)data)->ifnetid_name, |
3511 | dst: ifname, IFNAMSIZ); |
3512 | ifp = ifunit_ref(name: ifname); |
3513 | break; |
3514 | #if SKYWALK |
3515 | case SIOCGIFNEXUS: /* struct if_nexusreq */ |
3516 | bcopy(src: ((struct if_nexusreq *)(void *)data)->ifnr_name, |
3517 | dst: ifname, IFNAMSIZ); |
3518 | ifp = ifunit_ref(name: ifname); |
3519 | break; |
3520 | #endif /* SKYWALK */ |
3521 | case SIOCGIFPROTOLIST32: /* struct if_protolistreq32 */ |
3522 | case SIOCGIFPROTOLIST64: /* struct if_protolistreq64 */ |
3523 | bcopy(src: ((struct if_protolistreq *)(void *)data)->ifpl_name, |
3524 | dst: ifname, IFNAMSIZ); |
3525 | ifp = ifunit_ref(name: ifname); |
3526 | break; |
3527 | default: |
3528 | /* |
3529 | * This is a bad assumption, but the code seems to |
3530 | * have been doing this in the past; caveat emptor. |
3531 | */ |
3532 | bcopy(src: ((struct ifreq *)(void *)data)->ifr_name, |
3533 | dst: ifname, IFNAMSIZ); |
3534 | ifp = ifunit_ref(name: ifname); |
3535 | break; |
3536 | } |
3537 | dlil_if_unlock(); |
3538 | |
3539 | if (ifp == NULL) { |
3540 | error = ENXIO; |
3541 | goto done; |
3542 | } |
3543 | |
3544 | if (ifioctl_restrict_intcoproc(cmd, NULL, ifp, p) == true) { |
3545 | error = EPERM; |
3546 | goto done; |
3547 | } |
3548 | switch (cmd) { |
3549 | case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ |
3550 | case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ |
3551 | case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ |
3552 | error = proc_suser(p); |
3553 | if (error != 0) { |
3554 | break; |
3555 | } |
3556 | |
3557 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: data); |
3558 | if (error != 0) { |
3559 | break; |
3560 | } |
3561 | |
3562 | ifnet_touch_lastchange(interface: ifp); |
3563 | break; |
3564 | |
3565 | case SIOCGIFSTATUS: /* struct ifstat */ |
3566 | VERIFY(ifs != NULL); |
3567 | ifs->ascii[0] = '\0'; |
3568 | |
3569 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifs); |
3570 | |
3571 | bcopy(src: ifs, dst: data, n: sizeof(*ifs)); |
3572 | break; |
3573 | |
3574 | case SIOCGIFMEDIA32: /* struct ifmediareq32 */ |
3575 | case SIOCGIFMEDIA64: /* struct ifmediareq64 */ |
3576 | case SIOCGIFXMEDIA32: /* struct ifmediareq32 */ |
3577 | case SIOCGIFXMEDIA64: /* struct ifmediareq64 */ |
3578 | error = ifioctl_get_media(ifp, so, cmd, data); |
3579 | break; |
3580 | |
3581 | case SIOCSIFDESC: /* struct if_descreq */ |
3582 | case SIOCGIFDESC: /* struct if_descreq */ |
3583 | error = ifioctl_ifdesc(ifp, cmd, data, p); |
3584 | break; |
3585 | |
3586 | case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ |
3587 | case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ |
3588 | error = ifioctl_linkparams(ifp, cmd, data, p); |
3589 | break; |
3590 | |
3591 | case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ |
3592 | error = ifioctl_qstats(ifp, cmd, data); |
3593 | break; |
3594 | |
3595 | case SIOCSIFTHROTTLE: /* struct if_throttlereq */ |
3596 | case SIOCGIFTHROTTLE: /* struct if_throttlereq */ |
3597 | error = ifioctl_throttle(ifp, cmd, data, p); |
3598 | break; |
3599 | |
3600 | case SIOCAIFAGENTID: /* struct if_agentidreq */ |
3601 | case SIOCDIFAGENTID: /* struct if_agentidreq */ |
3602 | case SIOCGIFAGENTIDS32: /* struct if_agentidsreq32 */ |
3603 | case SIOCGIFAGENTIDS64: /* struct if_agentidsreq64 */ |
3604 | error = ifioctl_netagent(ifp, cmd, data, p); |
3605 | break; |
3606 | |
3607 | case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ |
3608 | case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ |
3609 | error = ifioctl_netsignature(ifp, cmd, data); |
3610 | break; |
3611 | |
3612 | case SIOCSIFNETWORKID: /* struct if_netidreq */ |
3613 | error = ifioctl_networkid(ifp, data); |
3614 | break; |
3615 | case SIOCSIFNAT64PREFIX: /* struct if_nat64req */ |
3616 | case SIOCGIFNAT64PREFIX: /* struct if_nat64req */ |
3617 | error = ifioctl_nat64prefix(ifp, cmd, data); |
3618 | break; |
3619 | |
3620 | case SIOCGIFCLAT46ADDR: /* struct if_clat46req */ |
3621 | error = ifioctl_clat46addr(ifp, cmd, data); |
3622 | break; |
3623 | #if SKYWALK |
3624 | case SIOCGIFNEXUS: |
3625 | error = ifioctl_nexus(ifp, cmd, data); |
3626 | break; |
3627 | #endif /* SKYWALK */ |
3628 | |
3629 | case SIOCGIFPROTOLIST32: /* struct if_protolistreq32 */ |
3630 | case SIOCGIFPROTOLIST64: /* struct if_protolistreq64 */ |
3631 | error = ifioctl_protolist(ifp, cmd, data); |
3632 | break; |
3633 | |
3634 | default: |
3635 | if (so->so_proto == NULL) { |
3636 | error = EOPNOTSUPP; |
3637 | break; |
3638 | } |
3639 | |
3640 | socket_lock(so, refcount: 1); |
3641 | error = ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, |
3642 | data, ifp, p)); |
3643 | socket_unlock(so, refcount: 1); |
3644 | |
3645 | // Don't allow to call SIOCAIFADDR and SIOCDIFADDR with |
3646 | // ifreq as the code expects ifaddr |
3647 | if ((error == EOPNOTSUPP || error == ENOTSUP) && |
3648 | !(cmd == SIOCAIFADDR || cmd == SIOCDIFADDR)) { |
3649 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: data); |
3650 | } |
3651 | break; |
3652 | } |
3653 | |
3654 | done: |
3655 | if (ifs != NULL) { |
3656 | kfree_type(struct ifstat, ifs); |
3657 | } |
3658 | |
3659 | if (if_verbose) { |
3660 | if (ifname[0] == '\0') { |
3661 | (void) snprintf(ifname, count: sizeof(ifname), "%s" , |
3662 | "NULL" ); |
3663 | } else if (ifp != NULL) { |
3664 | (void) snprintf(ifname, count: sizeof(ifname), "%s" , |
3665 | if_name(ifp)); |
3666 | } |
3667 | |
3668 | if (error != 0) { |
3669 | printf("%s[%s,%d]: ifp %s cmd 0x%08lx (%c%c [%lu] " |
3670 | "%c %lu) error %d\n" , __func__, |
3671 | proc_name_address(p), proc_pid(p), |
3672 | ifname, cmd, (cmd & IOC_IN) ? 'I' : ' ', |
3673 | (cmd & IOC_OUT) ? 'O' : ' ', IOCPARM_LEN(cmd), |
3674 | (char)IOCGROUP(cmd), cmd & 0xff, error); |
3675 | } else if (if_verbose > 1) { |
3676 | printf("%s[%s,%d]: ifp %s cmd 0x%08lx (%c%c [%lu] " |
3677 | "%c %lu) OK\n" , __func__, |
3678 | proc_name_address(p), proc_pid(p), |
3679 | ifname, cmd, (cmd & IOC_IN) ? 'I' : ' ', |
3680 | (cmd & IOC_OUT) ? 'O' : ' ', IOCPARM_LEN(cmd), |
3681 | (char)IOCGROUP(cmd), cmd & 0xff); |
3682 | } |
3683 | } |
3684 | |
3685 | if (ifp != NULL) { |
3686 | ifnet_decr_iorefcnt(ifp); |
3687 | } |
3688 | return error; |
3689 | } |
3690 | |
3691 | static __attribute__((noinline)) int |
3692 | ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) |
3693 | { |
3694 | struct ifnet *ifp; |
3695 | u_long ocmd = cmd; |
3696 | int error = 0; |
3697 | struct kev_msg ev_msg; |
3698 | struct net_event_data ev_data; |
3699 | |
3700 | bzero(s: &ev_data, n: sizeof(struct net_event_data)); |
3701 | bzero(s: &ev_msg, n: sizeof(struct kev_msg)); |
3702 | |
3703 | switch (cmd) { |
3704 | case SIOCIFCREATE: |
3705 | case SIOCIFCREATE2: |
3706 | error = proc_suser(p); |
3707 | if (error) { |
3708 | return error; |
3709 | } |
3710 | return if_clone_create(name: ifr->ifr_name, len: sizeof(ifr->ifr_name), |
3711 | params: cmd == SIOCIFCREATE2 ? ifr->ifr_data : NULL); |
3712 | case SIOCIFDESTROY: |
3713 | error = proc_suser(p); |
3714 | if (error) { |
3715 | return error; |
3716 | } |
3717 | return if_clone_destroy(name: ifr->ifr_name); |
3718 | } |
3719 | |
3720 | /* |
3721 | * ioctls which require ifp. Note that we acquire dlil_ifnet_lock |
3722 | * here to ensure that the ifnet, if found, has been fully attached. |
3723 | */ |
3724 | dlil_if_lock(); |
3725 | ifp = ifunit(name: ifr->ifr_name); |
3726 | dlil_if_unlock(); |
3727 | |
3728 | if (ifp == NULL) { |
3729 | return ENXIO; |
3730 | } |
3731 | |
3732 | switch (cmd) { |
3733 | case SIOCGIFFLAGS: |
3734 | ifnet_lock_shared(ifp); |
3735 | ifr->ifr_flags = ifp->if_flags; |
3736 | ifnet_lock_done(ifp); |
3737 | break; |
3738 | |
3739 | case SIOCGIFEFLAGS: |
3740 | ifnet_lock_shared(ifp); |
3741 | ifr->ifr_eflags = ifp->if_eflags; |
3742 | ifnet_lock_done(ifp); |
3743 | break; |
3744 | |
3745 | case SIOCGIFXFLAGS: |
3746 | ifnet_lock_shared(ifp); |
3747 | ifr->ifr_xflags = ifp->if_xflags; |
3748 | ifnet_lock_done(ifp); |
3749 | break; |
3750 | |
3751 | case SIOCGIFCAP: |
3752 | ifnet_lock_shared(ifp); |
3753 | ifr->ifr_reqcap = ifp->if_capabilities; |
3754 | ifr->ifr_curcap = ifp->if_capenable; |
3755 | ifnet_lock_done(ifp); |
3756 | break; |
3757 | |
3758 | case SIOCGIFMETRIC: |
3759 | ifnet_lock_shared(ifp); |
3760 | ifr->ifr_metric = ifp->if_metric; |
3761 | ifnet_lock_done(ifp); |
3762 | break; |
3763 | |
3764 | case SIOCGIFMTU: |
3765 | ifnet_lock_shared(ifp); |
3766 | ifr->ifr_mtu = ifp->if_mtu; |
3767 | ifnet_lock_done(ifp); |
3768 | break; |
3769 | |
3770 | case SIOCGIFPHYS: |
3771 | ifnet_lock_shared(ifp); |
3772 | ifr->ifr_phys = ifp->if_physical; |
3773 | ifnet_lock_done(ifp); |
3774 | break; |
3775 | |
3776 | case SIOCSIFFLAGS: |
3777 | error = proc_suser(p); |
3778 | if (error != 0) { |
3779 | break; |
3780 | } |
3781 | |
3782 | (void) ifnet_set_flags(interface: ifp, new_flags: ifr->ifr_flags, |
3783 | mask: (u_int16_t)~IFF_CANTCHANGE); |
3784 | |
3785 | /* |
3786 | * Note that we intentionally ignore any error from below |
3787 | * for the SIOCSIFFLAGS case. |
3788 | */ |
3789 | (void) ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
3790 | |
3791 | /* |
3792 | * Send the event even upon error from the driver because |
3793 | * we changed the flags. |
3794 | */ |
3795 | dlil_post_sifflags_msg(ifp); |
3796 | |
3797 | ifnet_touch_lastchange(interface: ifp); |
3798 | break; |
3799 | |
3800 | case SIOCSIFCAP: |
3801 | error = proc_suser(p); |
3802 | if (error != 0) { |
3803 | break; |
3804 | } |
3805 | |
3806 | if ((ifr->ifr_reqcap & ~ifp->if_capabilities)) { |
3807 | error = EINVAL; |
3808 | break; |
3809 | } |
3810 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
3811 | |
3812 | ifnet_touch_lastchange(interface: ifp); |
3813 | break; |
3814 | |
3815 | case SIOCSIFMETRIC: |
3816 | error = proc_suser(p); |
3817 | if (error != 0) { |
3818 | break; |
3819 | } |
3820 | |
3821 | ifp->if_metric = ifr->ifr_metric; |
3822 | |
3823 | ev_msg.vendor_code = KEV_VENDOR_APPLE; |
3824 | ev_msg.kev_class = KEV_NETWORK_CLASS; |
3825 | ev_msg.kev_subclass = KEV_DL_SUBCLASS; |
3826 | |
3827 | ev_msg.event_code = KEV_DL_SIFMETRICS; |
3828 | strlcpy(dst: &ev_data.if_name[0], src: ifp->if_name, IFNAMSIZ); |
3829 | ev_data.if_family = ifp->if_family; |
3830 | ev_data.if_unit = (u_int32_t) ifp->if_unit; |
3831 | ev_msg.dv[0].data_length = sizeof(struct net_event_data); |
3832 | ev_msg.dv[0].data_ptr = &ev_data; |
3833 | |
3834 | ev_msg.dv[1].data_length = 0; |
3835 | dlil_post_complete_msg(ifp, &ev_msg); |
3836 | |
3837 | ifnet_touch_lastchange(interface: ifp); |
3838 | break; |
3839 | |
3840 | case SIOCSIFPHYS: |
3841 | error = proc_suser(p); |
3842 | if (error != 0) { |
3843 | break; |
3844 | } |
3845 | |
3846 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
3847 | if (error != 0) { |
3848 | break; |
3849 | } |
3850 | |
3851 | ev_msg.vendor_code = KEV_VENDOR_APPLE; |
3852 | ev_msg.kev_class = KEV_NETWORK_CLASS; |
3853 | ev_msg.kev_subclass = KEV_DL_SUBCLASS; |
3854 | |
3855 | ev_msg.event_code = KEV_DL_SIFPHYS; |
3856 | strlcpy(dst: &ev_data.if_name[0], src: ifp->if_name, IFNAMSIZ); |
3857 | ev_data.if_family = ifp->if_family; |
3858 | ev_data.if_unit = (u_int32_t) ifp->if_unit; |
3859 | ev_msg.dv[0].data_length = sizeof(struct net_event_data); |
3860 | ev_msg.dv[0].data_ptr = &ev_data; |
3861 | ev_msg.dv[1].data_length = 0; |
3862 | dlil_post_complete_msg(ifp, &ev_msg); |
3863 | |
3864 | ifnet_touch_lastchange(interface: ifp); |
3865 | break; |
3866 | |
3867 | case SIOCSIFMTU: { |
3868 | u_int32_t oldmtu = ifp->if_mtu; |
3869 | struct ifclassq *ifq = ifp->if_snd; |
3870 | |
3871 | ASSERT(ifq != NULL); |
3872 | error = proc_suser(p); |
3873 | if (error != 0) { |
3874 | break; |
3875 | } |
3876 | |
3877 | if (ifp->if_ioctl == NULL) { |
3878 | error = EOPNOTSUPP; |
3879 | break; |
3880 | } |
3881 | if (ifr->ifr_mtu < IF_MINMTU || ifr->ifr_mtu > IF_MAXMTU) { |
3882 | error = EINVAL; |
3883 | break; |
3884 | } |
3885 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
3886 | if (error != 0) { |
3887 | break; |
3888 | } |
3889 | |
3890 | ev_msg.vendor_code = KEV_VENDOR_APPLE; |
3891 | ev_msg.kev_class = KEV_NETWORK_CLASS; |
3892 | ev_msg.kev_subclass = KEV_DL_SUBCLASS; |
3893 | |
3894 | ev_msg.event_code = KEV_DL_SIFMTU; |
3895 | strlcpy(dst: &ev_data.if_name[0], src: ifp->if_name, IFNAMSIZ); |
3896 | ev_data.if_family = ifp->if_family; |
3897 | ev_data.if_unit = (u_int32_t) ifp->if_unit; |
3898 | ev_msg.dv[0].data_length = sizeof(struct net_event_data); |
3899 | ev_msg.dv[0].data_ptr = &ev_data; |
3900 | ev_msg.dv[1].data_length = 0; |
3901 | dlil_post_complete_msg(ifp, &ev_msg); |
3902 | |
3903 | ifnet_touch_lastchange(interface: ifp); |
3904 | rt_ifmsg(ifp); |
3905 | |
3906 | /* |
3907 | * If the link MTU changed, do network layer specific procedure |
3908 | * and update all route entries associated with the interface, |
3909 | * so that their MTU metric gets updated. |
3910 | */ |
3911 | if (ifp->if_mtu != oldmtu) { |
3912 | if_rtmtu_update(ifp); |
3913 | nd6_setmtu(ifp); |
3914 | /* Inform all transmit queues about the new MTU */ |
3915 | IFCQ_LOCK(ifq); |
3916 | ifnet_update_sndq(ifq, CLASSQ_EV_LINK_MTU); |
3917 | IFCQ_UNLOCK(ifq); |
3918 | } |
3919 | break; |
3920 | } |
3921 | |
3922 | case SIOCADDMULTI: |
3923 | case SIOCDELMULTI: |
3924 | error = proc_suser(p); |
3925 | if (error != 0) { |
3926 | break; |
3927 | } |
3928 | |
3929 | /* Don't allow group membership on non-multicast interfaces. */ |
3930 | if ((ifp->if_flags & IFF_MULTICAST) == 0) { |
3931 | error = EOPNOTSUPP; |
3932 | break; |
3933 | } |
3934 | |
3935 | /* Don't let users screw up protocols' entries. */ |
3936 | if (ifr->ifr_addr.sa_family != AF_UNSPEC && |
3937 | ifr->ifr_addr.sa_family != AF_LINK) { |
3938 | error = EINVAL; |
3939 | break; |
3940 | } |
3941 | if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) { |
3942 | ifr->ifr_addr.sa_len = sizeof(struct sockaddr); |
3943 | } |
3944 | |
3945 | /* |
3946 | * User is permitted to anonymously join a particular link |
3947 | * multicast group via SIOCADDMULTI. Subsequent join requested |
3948 | * for the same record which has an outstanding refcnt from a |
3949 | * past if_addmulti_anon() will not result in EADDRINUSE error |
3950 | * (unlike other BSDs.) Anonymously leaving a group is also |
3951 | * allowed only as long as there is an outstanding refcnt held |
3952 | * by a previous anonymous request, or else ENOENT (even if the |
3953 | * link-layer multicast membership exists for a network-layer |
3954 | * membership.) |
3955 | */ |
3956 | if (cmd == SIOCADDMULTI) { |
3957 | error = if_addmulti_anon(ifp, &ifr->ifr_addr, NULL); |
3958 | ev_msg.event_code = KEV_DL_ADDMULTI; |
3959 | } else { |
3960 | error = if_delmulti_anon(ifp, &ifr->ifr_addr); |
3961 | ev_msg.event_code = KEV_DL_DELMULTI; |
3962 | } |
3963 | if (error != 0) { |
3964 | break; |
3965 | } |
3966 | |
3967 | ev_msg.vendor_code = KEV_VENDOR_APPLE; |
3968 | ev_msg.kev_class = KEV_NETWORK_CLASS; |
3969 | ev_msg.kev_subclass = KEV_DL_SUBCLASS; |
3970 | strlcpy(dst: &ev_data.if_name[0], src: ifp->if_name, IFNAMSIZ); |
3971 | |
3972 | ev_data.if_family = ifp->if_family; |
3973 | ev_data.if_unit = (u_int32_t) ifp->if_unit; |
3974 | ev_msg.dv[0].data_length = sizeof(struct net_event_data); |
3975 | ev_msg.dv[0].data_ptr = &ev_data; |
3976 | ev_msg.dv[1].data_length = 0; |
3977 | dlil_post_complete_msg(ifp, &ev_msg); |
3978 | |
3979 | ifnet_touch_lastchange(interface: ifp); |
3980 | break; |
3981 | |
3982 | case SIOCSIFMEDIA: |
3983 | error = proc_suser(p); |
3984 | if (error != 0) { |
3985 | break; |
3986 | } |
3987 | /* |
3988 | * Silently ignore setting IFM_OTHER |
3989 | */ |
3990 | if (ifr->ifr_media == IFM_OTHER) { |
3991 | os_log_info(OS_LOG_DEFAULT, |
3992 | "%s: %s SIOCSIFMEDIA ignore IFM_OTHER" , |
3993 | __func__, ifp->if_xname); |
3994 | error = 0; |
3995 | break; |
3996 | } |
3997 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
3998 | if (error != 0) { |
3999 | break; |
4000 | } |
4001 | ifnet_touch_lastchange(interface: ifp); |
4002 | break; |
4003 | |
4004 | case SIOCDIFPHYADDR: |
4005 | case SIOCSIFGENERIC: |
4006 | case SIOCSIFLLADDR: |
4007 | case SIOCSIFALTMTU: |
4008 | case SIOCSIFVLAN: |
4009 | case SIOCSIFBOND: |
4010 | error = proc_suser(p); |
4011 | if (error != 0) { |
4012 | break; |
4013 | } |
4014 | |
4015 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
4016 | if (error != 0) { |
4017 | break; |
4018 | } |
4019 | |
4020 | ifnet_touch_lastchange(interface: ifp); |
4021 | break; |
4022 | |
4023 | case SIOCGIFLLADDR: { |
4024 | struct sockaddr_dl *sdl = SDL(ifp->if_lladdr->ifa_addr); |
4025 | |
4026 | if (sdl->sdl_alen == 0) { |
4027 | error = EADDRNOTAVAIL; |
4028 | break; |
4029 | } |
4030 | /* If larger than 14-bytes we'll need another mechanism */ |
4031 | if (sdl->sdl_alen > sizeof(ifr->ifr_addr.sa_data)) { |
4032 | error = EMSGSIZE; |
4033 | break; |
4034 | } |
4035 | /* Follow the same convention used by SIOCSIFLLADDR */ |
4036 | SOCKADDR_ZERO(&ifr->ifr_addr, sizeof(ifr->ifr_addr)); |
4037 | ifr->ifr_addr.sa_family = AF_LINK; |
4038 | ifr->ifr_addr.sa_len = sdl->sdl_alen; |
4039 | error = ifnet_guarded_lladdr_copy_bytes(interface: ifp, |
4040 | lladdr: &ifr->ifr_addr.sa_data, length: sdl->sdl_alen); |
4041 | break; |
4042 | } |
4043 | |
4044 | case SIOCGIFTYPE: |
4045 | ifr->ifr_type.ift_type = ifp->if_type; |
4046 | ifr->ifr_type.ift_family = ifp->if_family; |
4047 | ifr->ifr_type.ift_subfamily = ifp->if_subfamily; |
4048 | break; |
4049 | |
4050 | case SIOCGIFFUNCTIONALTYPE: |
4051 | ifr->ifr_functional_type = if_functional_type(ifp, FALSE); |
4052 | break; |
4053 | |
4054 | case SIOCGIFPSRCADDR: |
4055 | case SIOCGIFPDSTADDR: |
4056 | case SIOCGIFGENERIC: |
4057 | case SIOCGIFDEVMTU: |
4058 | case SIOCGIFVLAN: |
4059 | case SIOCGIFBOND: |
4060 | error = ifnet_ioctl(interface: ifp, SOCK_DOM(so), ioctl_code: cmd, ioctl_arg: (caddr_t)ifr); |
4061 | break; |
4062 | |
4063 | case SIOCGIFWAKEFLAGS: |
4064 | ifnet_lock_shared(ifp); |
4065 | ifr->ifr_wake_flags = ifnet_get_wake_flags(interface: ifp); |
4066 | ifnet_lock_done(ifp); |
4067 | break; |
4068 | |
4069 | case SIOCGIFGETRTREFCNT: |
4070 | ifnet_lock_shared(ifp); |
4071 | ifr->ifr_route_refcnt = ifp->if_route_refcnt; |
4072 | ifnet_lock_done(ifp); |
4073 | break; |
4074 | |
4075 | case SIOCSIFOPPORTUNISTIC: |
4076 | case SIOCGIFOPPORTUNISTIC: |
4077 | error = ifnet_getset_opportunistic(ifp, cmd, ifr, p); |
4078 | break; |
4079 | |
4080 | case SIOCGIFLINKQUALITYMETRIC: |
4081 | ifnet_lock_shared(ifp); |
4082 | if ((ifp->if_interface_state.valid_bitmask & |
4083 | IF_INTERFACE_STATE_LQM_STATE_VALID)) { |
4084 | ifr->ifr_link_quality_metric = |
4085 | ifp->if_interface_state.lqm_state; |
4086 | } else if (IF_FULLY_ATTACHED(ifp)) { |
4087 | ifr->ifr_link_quality_metric = |
4088 | IFNET_LQM_THRESH_UNKNOWN; |
4089 | } else { |
4090 | ifr->ifr_link_quality_metric = |
4091 | IFNET_LQM_THRESH_OFF; |
4092 | } |
4093 | ifnet_lock_done(ifp); |
4094 | break; |
4095 | |
4096 | case SIOCSIFLINKQUALITYMETRIC: |
4097 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
4098 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
4099 | return error; |
4100 | } |
4101 | error = ifnet_set_link_quality(interface: ifp, quality: ifr->ifr_link_quality_metric); |
4102 | break; |
4103 | |
4104 | case SIOCSIFLOG: |
4105 | case SIOCGIFLOG: |
4106 | error = ifnet_getset_log(ifp, cmd, ifr, p); |
4107 | break; |
4108 | |
4109 | case SIOCGIFDELEGATE: |
4110 | ifnet_lock_shared(ifp); |
4111 | ifr->ifr_delegated = ((ifp->if_delegated.ifp != NULL) ? |
4112 | ifp->if_delegated.ifp->if_index : 0); |
4113 | ifnet_lock_done(ifp); |
4114 | break; |
4115 | |
4116 | case SIOCGIFEXPENSIVE: |
4117 | ifnet_lock_shared(ifp); |
4118 | if (ifp->if_eflags & IFEF_EXPENSIVE) { |
4119 | ifr->ifr_expensive = 1; |
4120 | } else { |
4121 | ifr->ifr_expensive = 0; |
4122 | } |
4123 | ifnet_lock_done(ifp); |
4124 | break; |
4125 | |
4126 | case SIOCSIFEXPENSIVE: |
4127 | { |
4128 | struct ifnet *difp; |
4129 | |
4130 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
4131 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
4132 | return error; |
4133 | } |
4134 | if (ifr->ifr_expensive) { |
4135 | if_set_eflags(ifp, IFEF_EXPENSIVE); |
4136 | } else { |
4137 | if_clear_eflags(ifp, IFEF_EXPENSIVE); |
4138 | } |
4139 | ifnet_increment_generation(interface: ifp); |
4140 | |
4141 | /* |
4142 | * Update the expensive bit in the delegated interface |
4143 | * structure. |
4144 | */ |
4145 | ifnet_head_lock_shared(); |
4146 | TAILQ_FOREACH(difp, &ifnet_head, if_link) { |
4147 | ifnet_lock_exclusive(ifp: difp); |
4148 | if (difp->if_delegated.ifp == ifp) { |
4149 | difp->if_delegated.expensive = |
4150 | ifp->if_eflags & IFEF_EXPENSIVE ? 1 : 0; |
4151 | ifnet_increment_generation(interface: difp); |
4152 | } |
4153 | ifnet_lock_done(ifp: difp); |
4154 | } |
4155 | ifnet_head_done(); |
4156 | necp_update_all_clients(); |
4157 | break; |
4158 | } |
4159 | |
4160 | case SIOCGIFCONSTRAINED: |
4161 | if ((ifp->if_xflags & IFXF_CONSTRAINED) != 0) { |
4162 | ifr->ifr_constrained = 1; |
4163 | } else { |
4164 | ifr->ifr_constrained = 0; |
4165 | } |
4166 | break; |
4167 | |
4168 | case SIOCSIFCONSTRAINED: |
4169 | { |
4170 | struct ifnet *difp; |
4171 | |
4172 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
4173 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
4174 | return error; |
4175 | } |
4176 | if (ifr->ifr_constrained) { |
4177 | if_set_xflags(ifp, IFXF_CONSTRAINED); |
4178 | } else { |
4179 | if_clear_xflags(ifp, IFXF_CONSTRAINED); |
4180 | } |
4181 | ifnet_increment_generation(interface: ifp); |
4182 | /* |
4183 | * Update the constrained bit in the delegated interface |
4184 | * structure. |
4185 | */ |
4186 | ifnet_head_lock_shared(); |
4187 | TAILQ_FOREACH(difp, &ifnet_head, if_link) { |
4188 | ifnet_lock_exclusive(ifp: difp); |
4189 | if (difp->if_delegated.ifp == ifp) { |
4190 | difp->if_delegated.constrained = |
4191 | ((ifp->if_xflags & IFXF_CONSTRAINED) != 0) ? 1 : 0; |
4192 | ifnet_increment_generation(interface: difp); |
4193 | } |
4194 | ifnet_lock_done(ifp: difp); |
4195 | } |
4196 | ifnet_head_done(); |
4197 | necp_update_all_clients(); |
4198 | break; |
4199 | } |
4200 | |
4201 | case SIOCSIFESTTHROUGHPUT: |
4202 | { |
4203 | bool changed = false; |
4204 | struct ifnet *difp; |
4205 | |
4206 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
4207 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
4208 | return error; |
4209 | } |
4210 | ifnet_lock_exclusive(ifp); |
4211 | changed = (ifp->if_estimated_up_bucket != ifr->ifr_estimated_throughput.up_bucket) || |
4212 | (ifp->if_estimated_down_bucket != ifr->ifr_estimated_throughput.down_bucket); |
4213 | ifp->if_estimated_up_bucket = ifr->ifr_estimated_throughput.up_bucket; |
4214 | ifp->if_estimated_down_bucket = ifr->ifr_estimated_throughput.down_bucket; |
4215 | if (changed) { |
4216 | ifnet_increment_generation(interface: ifp); |
4217 | } |
4218 | ifnet_lock_done(ifp); |
4219 | os_log_info(OS_LOG_DEFAULT, |
4220 | "SIOCSIFESTTHROUGHPUT %s%s up: %u, down: %u" , |
4221 | ifp->if_name, changed ? " changed" : "" , |
4222 | ifp->if_estimated_up_bucket, |
4223 | ifp->if_estimated_down_bucket); |
4224 | if (changed) { |
4225 | /* |
4226 | * Update the generation on delegated interfaces. |
4227 | */ |
4228 | ifnet_head_lock_shared(); |
4229 | TAILQ_FOREACH(difp, &ifnet_head, if_link) { |
4230 | ifnet_lock_exclusive(ifp: difp); |
4231 | if (difp->if_delegated.ifp == ifp) { |
4232 | ifnet_increment_generation(interface: difp); |
4233 | } |
4234 | ifnet_lock_done(ifp: difp); |
4235 | } |
4236 | ifnet_head_done(); |
4237 | necp_update_all_clients(); |
4238 | } |
4239 | break; |
4240 | } |
4241 | |
4242 | case SIOCSIFRADIODETAILS: |
4243 | { |
4244 | bool changed = false; |
4245 | struct ifnet *difp; |
4246 | |
4247 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
4248 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
4249 | return error; |
4250 | } |
4251 | ifnet_lock_exclusive(ifp); |
4252 | changed = ifp->if_radio_type != ifr->ifr_radio_details.technology || |
4253 | ifp->if_radio_channel != ifr->ifr_radio_details.channel; |
4254 | ifp->if_radio_type = ifr->ifr_radio_details.technology; |
4255 | ifp->if_radio_channel = ifr->ifr_radio_details.channel; |
4256 | ifnet_lock_done(ifp); |
4257 | os_log_info(OS_LOG_DEFAULT, |
4258 | "SIOCSIFRADIODETAILS %s%s technology: %u, channel: %u" , |
4259 | ifp->if_name, changed ? " changed" : "" , |
4260 | ifr->ifr_radio_details.technology, |
4261 | ifr->ifr_radio_details.channel); |
4262 | if (changed) { |
4263 | ifnet_increment_generation(interface: ifp); |
4264 | /* |
4265 | * Update the generation on delegated interfaces. |
4266 | */ |
4267 | ifnet_head_lock_shared(); |
4268 | TAILQ_FOREACH(difp, &ifnet_head, if_link) { |
4269 | ifnet_lock_exclusive(ifp: difp); |
4270 | if (difp->if_delegated.ifp == ifp) { |
4271 | ifnet_increment_generation(interface: difp); |
4272 | } |
4273 | ifnet_lock_done(ifp: difp); |
4274 | } |
4275 | ifnet_head_done(); |
4276 | necp_update_all_clients(); |
4277 | } |
4278 | break; |
4279 | } |
4280 | |
4281 | case SIOCGIF2KCL: |
4282 | ifnet_lock_shared(ifp); |
4283 | if (ifp->if_eflags & IFEF_2KCL) { |
4284 | ifr->ifr_2kcl = 1; |
4285 | } else { |
4286 | ifr->ifr_2kcl = 0; |
4287 | } |
4288 | ifnet_lock_done(ifp); |
4289 | break; |
4290 | |
4291 | case SIOCSIF2KCL: |
4292 | if ((error = priv_check_cred(cred: kauth_cred_get(), |
4293 | PRIV_NET_INTERFACE_CONTROL, flags: 0)) != 0) { |
4294 | return error; |
4295 | } |
4296 | if (ifr->ifr_2kcl) { |
4297 | if_set_eflags(ifp, IFEF_2KCL); |
4298 | } else { |
4299 | if_clear_eflags(ifp, IFEF_2KCL); |
4300 | } |
4301 | break; |
4302 | case SIOCGSTARTDELAY: |
4303 | ifnet_lock_shared(ifp); |
4304 | if (ifp->if_eflags & IFEF_ENQUEUE_MULTI) { |
4305 | ifr->ifr_start_delay_qlen = |
4306 | ifp->if_start_delay_qlen; |
4307 | ifr->ifr_start_delay_timeout = |
4308 | ifp->if_start_delay_timeout; |
4309 | } else { |
4310 | ifr->ifr_start_delay_qlen = 0; |
4311 | ifr->ifr_start_delay_timeout = 0; |
4312 | } |
4313 | ifnet_lock_done(ifp); |
4314 | break; |
4315 | case SIOCSIFDSTADDR: |
4316 | case SIOCSIFADDR: |
4317 | case SIOCSIFBRDADDR: |
4318 | case SIOCSIFNETMASK: |
4319 | case OSIOCGIFADDR: |
4320 | case OSIOCGIFDSTADDR: |
4321 | case OSIOCGIFBRDADDR: |
4322 | case OSIOCGIFNETMASK: |
4323 | case SIOCSIFKPI: |
4324 | VERIFY(so->so_proto != NULL); |
4325 | |
4326 | if (cmd == SIOCSIFDSTADDR || cmd == SIOCSIFADDR || |
4327 | cmd == SIOCSIFBRDADDR || cmd == SIOCSIFNETMASK) { |
4328 | #if BYTE_ORDER != BIG_ENDIAN |
4329 | if (ifr->ifr_addr.sa_family == 0 && |
4330 | ifr->ifr_addr.sa_len < 16) { |
4331 | ifr->ifr_addr.sa_family = ifr->ifr_addr.sa_len; |
4332 | ifr->ifr_addr.sa_len = 16; |
4333 | } |
4334 | #else |
4335 | if (ifr->ifr_addr.sa_len == 0) { |
4336 | ifr->ifr_addr.sa_len = 16; |
4337 | } |
4338 | #endif |
4339 | } else if (cmd == OSIOCGIFADDR) { |
4340 | cmd = SIOCGIFADDR; /* struct ifreq */ |
4341 | } else if (cmd == OSIOCGIFDSTADDR) { |
4342 | cmd = SIOCGIFDSTADDR; /* struct ifreq */ |
4343 | } else if (cmd == OSIOCGIFBRDADDR) { |
4344 | cmd = SIOCGIFBRDADDR; /* struct ifreq */ |
4345 | } else if (cmd == OSIOCGIFNETMASK) { |
4346 | cmd = SIOCGIFNETMASK; /* struct ifreq */ |
4347 | } |
4348 | |
4349 | socket_lock(so, refcount: 1); |
4350 | error = ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, |
4351 | (caddr_t)ifr, ifp, p)); |
4352 | socket_unlock(so, refcount: 1); |
4353 | |
4354 | switch (ocmd) { |
4355 | case OSIOCGIFADDR: |
4356 | case OSIOCGIFDSTADDR: |
4357 | case OSIOCGIFBRDADDR: |
4358 | case OSIOCGIFNETMASK: |
4359 | SOCKADDR_COPY(&ifr->ifr_addr.sa_family, &ifr->ifr_addr, |
4360 | sizeof(u_short)); |
4361 | } |
4362 | |
4363 | if (cmd == |
---|