1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2015, Joyent Inc.
24 * Copyright (c) 2017, Joyent, Inc.
25 * Copyright 2025 MNX Cloud, Inc.
26 */
27
28 /*
29 * Data-Link Driver
30 */
31
32 #include <sys/conf.h>
33 #include <sys/mkdev.h>
34 #include <sys/modctl.h>
35 #include <sys/stat.h>
36 #include <sys/dld_impl.h>
37 #include <sys/dld_ioc.h>
38 #include <sys/dls_impl.h>
39 #include <sys/softmac.h>
40 #include <sys/mac.h>
41 #include <sys/mac_ether.h>
42 #include <sys/mac_client.h>
43 #include <sys/mac_client_impl.h>
44 #include <sys/mac_client_priv.h>
45 #include <inet/common.h>
46 #include <sys/policy.h>
47 #include <sys/priv_names.h>
48 #include <sys/zone.h>
49 #include <sys/sysmacros.h>
50
51 static void drv_init(void);
52 static int drv_fini(void);
53
54 static int drv_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **);
55 static int drv_attach(dev_info_t *, ddi_attach_cmd_t);
56 static int drv_detach(dev_info_t *, ddi_detach_cmd_t);
57
58 /*
59 * Secure objects declarations
60 */
61 #define SECOBJ_WEP_HASHSZ 67
62 static krwlock_t drv_secobj_lock;
63 static kmem_cache_t *drv_secobj_cachep;
64 static mod_hash_t *drv_secobj_hash;
65 static void drv_secobj_init(void);
66 static void drv_secobj_fini(void);
67 static int drv_ioc_setap(datalink_id_t, struct dlautopush *);
68 static int drv_ioc_getap(datalink_id_t, struct dlautopush *);
69 static int drv_ioc_clrap(datalink_id_t);
70
71
72 /*
73 * The following entry points are private to dld and are used for control
74 * operations only. The entry points exported to mac drivers are defined
75 * in dld_str.c. Refer to the comment on top of dld_str.c for details.
76 */
77 static int drv_open(dev_t *, int, int, cred_t *);
78 static int drv_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
79
80 static dev_info_t *dld_dip; /* dev_info_t for the driver */
81 uint32_t dld_opt = 0; /* Global options */
82
83 #define NAUTOPUSH 32
84 static mod_hash_t *dld_ap_hashp;
85 static krwlock_t dld_ap_hash_lock;
86
87 static struct cb_ops drv_cb_ops = {
88 drv_open, /* open */
89 nulldev, /* close */
90 nulldev, /* strategy */
91 nulldev, /* print */
92 nodev, /* dump */
93 nodev, /* read */
94 nodev, /* write */
95 drv_ioctl, /* ioctl */
96 nodev, /* devmap */
97 nodev, /* mmap */
98 nodev, /* segmap */
99 nochpoll, /* poll */
100 ddi_prop_op, /* cb_prop_op */
101 0, /* streamtab */
102 D_MP /* Driver compatibility flag */
103 };
104
105 static struct dev_ops drv_ops = {
106 DEVO_REV, /* devo_rev */
107 0, /* refcnt */
108 drv_getinfo, /* get_dev_info */
109 nulldev, /* identify */
110 nulldev, /* probe */
111 drv_attach, /* attach */
112 drv_detach, /* detach */
113 nodev, /* reset */
114 &drv_cb_ops, /* driver operations */
115 NULL, /* bus operations */
116 nodev, /* dev power */
117 ddi_quiesce_not_supported, /* dev quiesce */
118 };
119
120 /*
121 * Module linkage information for the kernel.
122 */
123 static struct modldrv drv_modldrv = {
124 &mod_driverops,
125 DLD_INFO,
126 &drv_ops
127 };
128
129 static struct modlinkage drv_modlinkage = {
130 MODREV_1,
131 &drv_modldrv,
132 NULL
133 };
134
135 int
136 _init(void)
137 {
138 return (mod_install(&drv_modlinkage));
139 }
140
141 int
142 _fini(void)
143 {
144 return (mod_remove(&drv_modlinkage));
145 }
146
147 int
148 _info(struct modinfo *modinfop)
149 {
150 return (mod_info(&drv_modlinkage, modinfop));
151 }
152
153 /*
154 * Initialize component modules.
155 */
156 static void
157 drv_init(void)
158 {
159 drv_secobj_init();
160 dld_str_init();
161
162 /*
163 * Create a hash table for autopush configuration.
164 */
165 dld_ap_hashp = mod_hash_create_idhash("dld_autopush_hash",
166 NAUTOPUSH, mod_hash_null_valdtor);
167
168 ASSERT(dld_ap_hashp != NULL);
169 rw_init(&dld_ap_hash_lock, NULL, RW_DRIVER, NULL);
170 }
171
172 /* ARGSUSED */
173 static uint_t
174 drv_ap_exist(mod_hash_key_t key, mod_hash_val_t *val, void *arg)
175 {
176 boolean_t *pexist = arg;
177
178 *pexist = B_TRUE;
179 return (MH_WALK_TERMINATE);
180 }
181
182 static int
183 drv_fini(void)
184 {
185 int err;
186 boolean_t exist = B_FALSE;
187
188 rw_enter(&dld_ap_hash_lock, RW_READER);
189 mod_hash_walk(dld_ap_hashp, drv_ap_exist, &exist);
190 rw_exit(&dld_ap_hash_lock);
191 if (exist)
192 return (EBUSY);
193
194 if ((err = dld_str_fini()) != 0)
195 return (err);
196
197 drv_secobj_fini();
198 mod_hash_destroy_idhash(dld_ap_hashp);
199 rw_destroy(&dld_ap_hash_lock);
200 return (0);
201 }
202
203 /*
204 * devo_getinfo: getinfo(9e)
205 */
206 /*ARGSUSED*/
207 static int
208 drv_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **resp)
209 {
210 if (dld_dip == NULL)
211 return (DDI_FAILURE);
212
213 switch (cmd) {
214 case DDI_INFO_DEVT2INSTANCE:
215 *resp = 0;
216 break;
217 case DDI_INFO_DEVT2DEVINFO:
218 *resp = dld_dip;
219 break;
220 default:
221 return (DDI_FAILURE);
222 }
223
224 return (DDI_SUCCESS);
225 }
226
227 /*
228 * Check properties to set options. (See dld.h for property definitions).
229 */
230 static void
231 drv_set_opt(dev_info_t *dip)
232 {
233 if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
234 DLD_PROP_NO_FASTPATH, 0) != 0) {
235 dld_opt |= DLD_OPT_NO_FASTPATH;
236 }
237
238 if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
239 DLD_PROP_NO_POLL, 0) != 0) {
240 dld_opt |= DLD_OPT_NO_POLL;
241 }
242
243 if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
244 DLD_PROP_NO_ZEROCOPY, 0) != 0) {
245 dld_opt |= DLD_OPT_NO_ZEROCOPY;
246 }
247
248 if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
249 DLD_PROP_NO_SOFTRING, 0) != 0) {
250 dld_opt |= DLD_OPT_NO_SOFTRING;
251 }
252 }
253
254 /*
255 * devo_attach: attach(9e)
256 */
257 static int
258 drv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
259 {
260 if (cmd != DDI_ATTACH)
261 return (DDI_FAILURE);
262
263 ASSERT(ddi_get_instance(dip) == 0);
264 drv_init();
265 drv_set_opt(dip);
266
267 /*
268 * Create control node. DLPI provider nodes will be created on demand.
269 */
270 if (ddi_create_minor_node(dip, DLD_CONTROL_MINOR_NAME, S_IFCHR,
271 DLD_CONTROL_MINOR, DDI_PSEUDO, 0) != DDI_SUCCESS)
272 return (DDI_FAILURE);
273
274 dld_dip = dip;
275
276 /*
277 * Log the fact that the driver is now attached.
278 */
279 ddi_report_dev(dip);
280 return (DDI_SUCCESS);
281 }
282
283 /*
284 * devo_detach: detach(9e)
285 */
286 static int
287 drv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
288 {
289 if (cmd != DDI_DETACH)
290 return (DDI_FAILURE);
291
292 ASSERT(dld_dip == dip);
293 if (drv_fini() != 0)
294 return (DDI_FAILURE);
295
296 /*
297 * Remove the control node.
298 */
299 ddi_remove_minor_node(dip, DLD_CONTROL_MINOR_NAME);
300 dld_dip = NULL;
301
302 return (DDI_SUCCESS);
303 }
304
305 /*
306 * dld control node open procedure.
307 */
308 /*ARGSUSED*/
309 static int
310 drv_open(dev_t *devp, int flag, int sflag, cred_t *credp)
311 {
312 /*
313 * Only the control node can be opened.
314 */
315 if (getminor(*devp) != DLD_CONTROL_MINOR)
316 return (ENODEV);
317 return (0);
318 }
319
320 /*
321 * Verify if the caller is allowed to modify a link of the given class.
322 */
323 static int
324 drv_ioc_checkprivs(datalink_class_t class, cred_t *cred)
325 {
326 if (class == DATALINK_CLASS_IPTUN)
327 return (secpolicy_iptun_config(cred));
328 return (secpolicy_dl_config(cred));
329 }
330
331 /*
332 * DLDIOC_ATTR
333 */
334 /* ARGSUSED */
335 static int
336 drv_ioc_attr(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
337 {
338 dld_ioc_attr_t *diap = karg;
339 dls_dl_handle_t dlh;
340 dls_link_t *dlp;
341 zoneid_t zoneid = crgetzoneid(cred);
342 int err;
343 mac_perim_handle_t mph;
344
345 if (zoneid != GLOBAL_ZONEID &&
346 zone_check_datalink(&zoneid, diap->dia_linkid) != 0)
347 return (ENOENT);
348
349 if ((err = dls_devnet_hold_tmp(diap->dia_linkid, &dlh)) != 0)
350 return (err);
351
352 if ((err = mac_perim_enter_by_macname(dls_devnet_mac(dlh),
353 &mph)) != 0) {
354 dls_devnet_rele_tmp(dlh);
355 return (err);
356 }
357
358 if ((err = dls_link_hold(dls_devnet_mac(dlh), &dlp)) != 0) {
359 mac_perim_exit(mph);
360 dls_devnet_rele_tmp(dlh);
361 return (err);
362 }
363
364 mac_sdu_get(dlp->dl_mh, NULL, &diap->dia_max_sdu);
365 dls_link_rele(dlp);
366 mac_perim_exit(mph);
367 dls_devnet_rele_tmp(dlh);
368
369 return (0);
370 }
371
372 /*
373 * DLDIOC_PHYS_ATTR
374 */
375 /* ARGSUSED */
376 static int
377 drv_ioc_phys_attr(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
378 {
379 dld_ioc_phys_attr_t *dipp = karg;
380 int err;
381 dls_dl_handle_t dlh;
382 dls_dev_handle_t ddh;
383 dev_t phydev;
384 zoneid_t zoneid = crgetzoneid(cred);
385
386 if (zoneid != GLOBAL_ZONEID &&
387 zone_check_datalink(&zoneid, dipp->dip_linkid) != 0)
388 return (ENOENT);
389
390 /*
391 * Every physical link should have its physical dev_t kept in the
392 * daemon. If not, it is not a valid physical link.
393 */
394 if (dls_mgmt_get_phydev(dipp->dip_linkid, &phydev) != 0)
395 return (EINVAL);
396
397 /*
398 * Although this is a valid physical link, it might already be removed
399 * by DR or during system shutdown. softmac_hold_device() would return
400 * ENOENT in this case.
401 */
402 if ((err = softmac_hold_device(phydev, &ddh)) != 0)
403 return (err);
404
405 if (dls_devnet_hold_tmp(dipp->dip_linkid, &dlh) != 0) {
406 /*
407 * Although this is an active physical link, its link type is
408 * not supported by GLDv3, and therefore it does not have
409 * vanity naming support.
410 */
411 dipp->dip_novanity = B_TRUE;
412 } else {
413 dipp->dip_novanity = B_FALSE;
414 dls_devnet_rele_tmp(dlh);
415 }
416 /*
417 * Get the physical device name from the major number and the instance
418 * number derived from phydev.
419 */
420 (void) snprintf(dipp->dip_dev, MAXLINKNAMELEN, "%s%d",
421 ddi_major_to_name(getmajor(phydev)), getminor(phydev) - 1);
422
423 softmac_rele_device(ddh);
424 return (0);
425 }
426
427 /* ARGSUSED */
428 static int
429 drv_ioc_hwgrpget(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
430 {
431 dld_ioc_hwgrpget_t *hwgrpp = karg;
432 dld_hwgrpinfo_t hwgrp, *hip;
433 mac_handle_t mh = NULL;
434 int i, err, rgrpnum, tgrpnum;
435 uint_t bytes_left;
436 int totgrps = 0;
437 zoneid_t zoneid = crgetzoneid(cred);
438
439 if (zoneid != GLOBAL_ZONEID &&
440 zone_check_datalink(&zoneid, hwgrpp->dih_linkid) != 0)
441 return (ENOENT);
442
443 hwgrpp->dih_n_groups = 0;
444 err = mac_open_by_linkid(hwgrpp->dih_linkid, &mh);
445 if (err != 0)
446 goto done;
447
448 hip = (dld_hwgrpinfo_t *)
449 ((uchar_t *)arg + sizeof (dld_ioc_hwgrpget_t));
450 bytes_left = hwgrpp->dih_size;
451
452 rgrpnum = mac_hwgrp_num(mh, MAC_RING_TYPE_RX);
453 /* display the default group information first */
454 if (rgrpnum > 0) {
455 if (sizeof (dld_hwgrpinfo_t) > bytes_left) {
456 err = ENOSPC;
457 goto done;
458 }
459
460 bzero(&hwgrp, sizeof (hwgrp));
461 bcopy(mac_name(mh), hwgrp.dhi_link_name,
462 sizeof (hwgrp.dhi_link_name));
463 mac_get_hwrxgrp_info(mh, 0, &hwgrp.dhi_grp_num,
464 &hwgrp.dhi_n_rings, hwgrp.dhi_rings, &hwgrp.dhi_grp_type,
465 &hwgrp.dhi_n_clnts, hwgrp.dhi_clnts);
466 if (hwgrp.dhi_n_rings != 0) {
467 if (copyout(&hwgrp, hip, sizeof (hwgrp)) != 0) {
468 err = EFAULT;
469 goto done;
470 }
471 }
472 hip++;
473 totgrps++;
474 bytes_left -= sizeof (dld_hwgrpinfo_t);
475 }
476
477 tgrpnum = mac_hwgrp_num(mh, MAC_RING_TYPE_TX);
478 /* display the default group information first */
479 if (tgrpnum > 0) {
480 if (sizeof (dld_hwgrpinfo_t) > bytes_left) {
481 err = ENOSPC;
482 goto done;
483 }
484
485 bzero(&hwgrp, sizeof (hwgrp));
486 bcopy(mac_name(mh), hwgrp.dhi_link_name,
487 sizeof (hwgrp.dhi_link_name));
488 mac_get_hwtxgrp_info(mh, tgrpnum - 1, &hwgrp.dhi_grp_num,
489 &hwgrp.dhi_n_rings, hwgrp.dhi_rings, &hwgrp.dhi_grp_type,
490 &hwgrp.dhi_n_clnts, hwgrp.dhi_clnts);
491 if (hwgrp.dhi_n_rings != 0) {
492 if (copyout(&hwgrp, hip, sizeof (hwgrp)) != 0) {
493 err = EFAULT;
494 goto done;
495 }
496 }
497 hip++;
498 totgrps++;
499 bytes_left -= sizeof (dld_hwgrpinfo_t);
500 }
501
502 /* Rest of the rx groups */
503 for (i = 1; i < rgrpnum; i++) {
504 if (sizeof (dld_hwgrpinfo_t) > bytes_left) {
505 err = ENOSPC;
506 goto done;
507 }
508
509 bzero(&hwgrp, sizeof (hwgrp));
510 bcopy(mac_name(mh), hwgrp.dhi_link_name,
511 sizeof (hwgrp.dhi_link_name));
512 mac_get_hwrxgrp_info(mh, i, &hwgrp.dhi_grp_num,
513 &hwgrp.dhi_n_rings, hwgrp.dhi_rings, &hwgrp.dhi_grp_type,
514 &hwgrp.dhi_n_clnts, hwgrp.dhi_clnts);
515 if (hwgrp.dhi_n_rings == 0)
516 continue;
517 if (copyout(&hwgrp, hip, sizeof (hwgrp)) != 0) {
518 err = EFAULT;
519 goto done;
520 }
521
522 hip++;
523 totgrps++;
524 bytes_left -= sizeof (dld_hwgrpinfo_t);
525 }
526
527 /* Rest of the tx group */
528 tgrpnum = mac_hwgrp_num(mh, MAC_RING_TYPE_TX);
529 for (i = 0; i < tgrpnum - 1; i++) {
530 if (sizeof (dld_hwgrpinfo_t) > bytes_left) {
531 err = ENOSPC;
532 goto done;
533 }
534
535 bzero(&hwgrp, sizeof (hwgrp));
536 bcopy(mac_name(mh), hwgrp.dhi_link_name,
537 sizeof (hwgrp.dhi_link_name));
538 mac_get_hwtxgrp_info(mh, i, &hwgrp.dhi_grp_num,
539 &hwgrp.dhi_n_rings, hwgrp.dhi_rings, &hwgrp.dhi_grp_type,
540 &hwgrp.dhi_n_clnts, hwgrp.dhi_clnts);
541 if (hwgrp.dhi_n_rings == 0)
542 continue;
543 if (copyout(&hwgrp, hip, sizeof (hwgrp)) != 0) {
544 err = EFAULT;
545 goto done;
546 }
547
548 hip++;
549 totgrps++;
550 bytes_left -= sizeof (dld_hwgrpinfo_t);
551 }
552
553 done:
554 if (mh != NULL)
555 dld_mac_close(mh);
556 if (err == 0)
557 hwgrpp->dih_n_groups = totgrps;
558 return (err);
559 }
560
561 /* ARGSUSED */
562 static int
563 drv_ioc_macaddrget(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
564 {
565 dld_ioc_macaddrget_t *magp = karg;
566 dld_macaddrinfo_t mai, *maip;
567 mac_handle_t mh = NULL;
568 int i, err;
569 uint_t bytes_left;
570 boolean_t is_used;
571 zoneid_t zoneid = crgetzoneid(cred);
572
573 if (zoneid != GLOBAL_ZONEID &&
574 zone_check_datalink(&zoneid, magp->dig_linkid) != 0)
575 return (ENOENT);
576
577 magp->dig_count = 0;
578 err = mac_open_by_linkid(magp->dig_linkid, &mh);
579 if (err != 0)
580 goto done;
581
582 maip = (dld_macaddrinfo_t *)
583 ((uchar_t *)arg + sizeof (dld_ioc_macaddrget_t));
584 bytes_left = magp->dig_size;
585
586 for (i = 0; i < mac_addr_factory_num(mh) + 1; i++) {
587 if (sizeof (dld_macaddrinfo_t) > bytes_left) {
588 err = ENOSPC;
589 goto done;
590 }
591
592 bzero(&mai, sizeof (mai));
593
594 if (i == 0) {
595 /* primary MAC address */
596 mac_unicast_primary_get(mh, mai.dmi_addr);
597 mai.dmi_addrlen = mac_addr_len(mh);
598 mac_unicast_primary_info(mh, mai.dmi_client_name,
599 &is_used);
600 } else {
601 /* factory MAC address slot */
602 mac_addr_factory_value(mh, i, mai.dmi_addr,
603 &mai.dmi_addrlen, mai.dmi_client_name, &is_used);
604 }
605
606 mai.dmi_slot = i;
607 if (is_used)
608 mai.dmi_flags |= DLDIOCMACADDR_USED;
609
610 if (copyout(&mai, maip, sizeof (mai)) != 0) {
611 err = EFAULT;
612 goto done;
613 }
614
615 maip++;
616 bytes_left -= sizeof (dld_macaddrinfo_t);
617 }
618
619 done:
620 if (mh != NULL)
621 dld_mac_close(mh);
622 if (err == 0)
623 magp->dig_count = mac_addr_factory_num(mh) + 1;
624 return (err);
625 }
626
627 /*
628 * Sometimes DLDIOC_GETMACPROP (and in the future, possibly DLDIOC_SETMACPROP)
629 * may be allowed to be accessed by the zone that is assigned the datalink
630 * device, as opposed to the zone that created the device.
631 */
632 static boolean_t
633 dld_macprop_assigned_zone_exception(zoneid_t zoneid, dls_dl_handle_t dlh,
634 dld_ioc_macprop_t *kprop, boolean_t set)
635 {
636 /*
637 * No exceptions for setting! No exceptions unless the zoneid is
638 * the assigned zone.
639 */
640 if (set || zoneid != dls_devnet_getzid(dlh))
641 return (B_FALSE);
642
643 /*
644 * The current list of read-only exceptions are enumerated below.
645 */
646 switch (kprop->pr_num) {
647 case MAC_PROP_MTU:
648 case MAC_PROP_STATUS:
649 return (B_TRUE);
650 default:
651 return (B_FALSE);
652 }
653 }
654
655 /*
656 * DLDIOC_SET/GETMACPROP
657 */
658 static int
659 drv_ioc_prop_common(dld_ioc_macprop_t *prop, intptr_t arg, boolean_t set,
660 cred_t *cred, int mode)
661 {
662 int err = EINVAL;
663 dls_dl_handle_t dlh = NULL;
664 dls_link_t *dlp = NULL;
665 mac_perim_handle_t mph = NULL;
666 dld_ioc_macprop_t *kprop;
667 datalink_id_t linkid;
668 datalink_class_t class;
669 zoneid_t zoneid = crgetzoneid(cred);
670 uint_t dsize;
671
672 /*
673 * We only use pr_valsize from prop, as the caller only did a
674 * copyin() for sizeof (dld_ioc_prop_t), which doesn't cover
675 * the property data. We copyin the full dld_ioc_prop_t
676 * including the data into kprop down below.
677 */
678 dsize = sizeof (dld_ioc_macprop_t) + prop->pr_valsize - 1;
679 if (dsize < prop->pr_valsize)
680 return (EINVAL);
681
682 /*
683 * The property data is variable size, so we need to allocate
684 * a buffer for kernel use as this data was not part of the
685 * prop allocation and copyin() done by the framework.
686 */
687 if ((kprop = kmem_alloc(dsize, KM_NOSLEEP)) == NULL)
688 return (ENOMEM);
689
690 if (ddi_copyin((void *)arg, kprop, dsize, mode) != 0) {
691 err = EFAULT;
692 goto done;
693 }
694
695 linkid = kprop->pr_linkid;
696
697 if (set) {
698 if ((err = dls_mgmt_get_linkinfo(linkid, NULL, &class, NULL,
699 NULL)) != 0 || (err = drv_ioc_checkprivs(class, cred)) != 0)
700 goto done;
701 }
702
703 if ((err = dls_devnet_hold_tmp(linkid, &dlh)) != 0)
704 goto done;
705 if ((err = mac_perim_enter_by_macname(dls_devnet_mac(dlh), &mph)) != 0)
706 goto done;
707 if ((err = dls_link_hold(dls_devnet_mac(dlh), &dlp)) != 0)
708 goto done;
709
710 /*
711 * In general, don't allow a process to get or set properties of a
712 * link if that link doesn't belong to that zone.
713 *
714 * There are exceptions however, if the dlh's *assigned* zone (as
715 * determined by dls_devnet_getzid()) is the one calling here. See
716 * the local function dld_macprop_assigned_zone_exception() above.
717 */
718 if (zoneid != dls_devnet_getownerzid(dlh) &&
719 !dld_macprop_assigned_zone_exception(zoneid, dlh, kprop, set)) {
720 err = ENOENT;
721 goto done;
722 }
723
724 if (!mac_prop_check_size(kprop->pr_num, kprop->pr_valsize,
725 kprop->pr_flags & DLD_PROP_POSSIBLE)) {
726 err = ENOBUFS;
727 goto done;
728 }
729
730 switch (kprop->pr_num) {
731 case MAC_PROP_ZONE:
732 if (set) {
733 dld_ioc_zid_t *dzp = (dld_ioc_zid_t *)kprop->pr_val;
734
735 if (zoneid != GLOBAL_ZONEID) {
736 err = EACCES;
737 goto done;
738 }
739 err = dls_devnet_setzid(dlh, dzp->diz_zid);
740 } else {
741 kprop->pr_perm_flags = MAC_PROP_PERM_RW;
742 (*(zoneid_t *)kprop->pr_val) = dls_devnet_getzid(dlh);
743 }
744 break;
745 case MAC_PROP_AUTOPUSH: {
746 struct dlautopush *dlap = (struct dlautopush *)kprop->pr_val;
747
748 if (set) {
749 if (kprop->pr_valsize != 0)
750 err = drv_ioc_setap(linkid, dlap);
751 else
752 err = drv_ioc_clrap(linkid);
753 } else {
754 /*
755 * You might think that the earlier call to
756 * mac_prop_check_size() should catch this but
757 * it can't. The autopush prop uses 0 as a
758 * sentinel value to clear the prop. This
759 * check ensures we don't allow a get with a
760 * valsize of 0.
761 */
762 if (kprop->pr_valsize == 0) {
763 err = ENOBUFS;
764 goto done;
765 }
766
767 kprop->pr_perm_flags = MAC_PROP_PERM_RW;
768 err = drv_ioc_getap(linkid, dlap);
769 }
770 break;
771 }
772 case MAC_PROP_TAGMODE:
773 if (set) {
774 link_tagmode_t mode = *(link_tagmode_t *)kprop->pr_val;
775
776 if (mode != LINK_TAGMODE_VLANONLY &&
777 mode != LINK_TAGMODE_NORMAL) {
778 err = EINVAL;
779 } else {
780 dlp->dl_tagmode = mode;
781 err = 0;
782 }
783 } else {
784 *(link_tagmode_t *)kprop->pr_val = dlp->dl_tagmode;
785 kprop->pr_perm_flags = MAC_PROP_PERM_RW;
786 err = 0;
787 }
788 break;
789 default: {
790 mac_propval_range_t *rangep = NULL;
791 void *default_val = NULL;
792 uint_t default_size = 0;
793
794 /* set a property value */
795 if (set) {
796 err = mac_set_prop(dlp->dl_mh, kprop->pr_num,
797 kprop->pr_name, kprop->pr_val, kprop->pr_valsize);
798 break;
799 }
800
801 /*
802 * Get the property value, default, or possible value
803 * depending on flags passed from the user.
804 */
805
806 /* a property has RW permissions by default */
807 kprop->pr_perm_flags = MAC_PROP_PERM_RW;
808
809 if (kprop->pr_flags & DLD_PROP_POSSIBLE) {
810 rangep = (mac_propval_range_t *)kprop->pr_val;
811
812 /*
813 * fail if rangep is not aligned to first
814 * member of mac_propval_range_t.
815 */
816 ASSERT(IS_P2ALIGNED(rangep, sizeof (uint_t)));
817 } else if (kprop->pr_flags & DLD_PROP_DEFAULT) {
818 default_val = kprop->pr_val;
819 default_size = kprop->pr_valsize;
820 }
821
822 /*
823 * Always return the permissions, and optionally return
824 * the default value or possible values range.
825 */
826 err = mac_prop_info(dlp->dl_mh, kprop->pr_num, kprop->pr_name,
827 default_val, default_size, rangep, &kprop->pr_perm_flags);
828 if (err != 0)
829 goto done;
830
831 if (default_val == NULL && rangep == NULL) {
832 err = mac_get_prop(dlp->dl_mh, kprop->pr_num,
833 kprop->pr_name, kprop->pr_val, kprop->pr_valsize);
834 }
835 }
836 }
837
838 done:
839 if (!set && ddi_copyout(kprop, (void *)arg, dsize, mode) != 0)
840 err = EFAULT;
841
842 if (dlp != NULL)
843 dls_link_rele(dlp);
844
845 if (mph != NULL) {
846 int32_t cpuid;
847 void *mdip = NULL;
848
849 if (dlp != NULL && set && err == 0) {
850 cpuid = mac_client_intr_cpu(dlp->dl_mch);
851 mdip = mac_get_devinfo(dlp->dl_mh);
852 }
853
854 mac_perim_exit(mph);
855
856 if (mdip != NULL && cpuid != -1)
857 mac_client_set_intr_cpu(mdip, dlp->dl_mch, cpuid);
858 }
859
860 if (dlh != NULL)
861 dls_devnet_rele_tmp(dlh);
862
863 if (kprop != NULL)
864 kmem_free(kprop, dsize);
865 return (err);
866 }
867
868 /* ARGSUSED */
869 static int
870 drv_ioc_setprop(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
871 {
872 return (drv_ioc_prop_common(karg, arg, B_TRUE, cred, mode));
873 }
874
875 /* ARGSUSED */
876 static int
877 drv_ioc_getprop(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
878 {
879 return (drv_ioc_prop_common(karg, arg, B_FALSE, cred, mode));
880 }
881
882 /*
883 * DLDIOC_RENAME.
884 *
885 * This function handles two cases of link renaming. See more in comments above
886 * dls_datalink_rename().
887 */
888 /* ARGSUSED */
889 static int
890 drv_ioc_rename(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
891 {
892 dld_ioc_rename_t *dir = karg;
893 mod_hash_key_t key;
894 mod_hash_val_t val;
895 zoneid_t zoneid = crgetzoneid(cred);
896 datalink_class_t class;
897 int err;
898
899 if (zoneid != GLOBAL_ZONEID &&
900 (zone_check_datalink(&zoneid, dir->dir_linkid1) != 0 ||
901 dir->dir_linkid2 != DATALINK_INVALID_LINKID &&
902 zone_check_datalink(&zoneid, dir->dir_linkid2) != 0))
903 return (ENOENT);
904
905 if ((err = dls_mgmt_get_linkinfo(dir->dir_linkid1, NULL, &class, NULL,
906 NULL)) != 0)
907 return (err);
908
909 if ((err = drv_ioc_checkprivs(class, cred)) != 0)
910 return (err);
911
912 if ((err = dls_devnet_rename(dir->dir_linkid1, dir->dir_linkid2,
913 dir->dir_link)) != 0)
914 return (err);
915
916 if (dir->dir_linkid2 == DATALINK_INVALID_LINKID)
917 return (0);
918
919 /*
920 * if dir_linkid2 is not DATALINK_INVALID_LINKID, it means this
921 * renaming request is to rename a valid physical link (dir_linkid1)
922 * to a "removed" physical link (dir_linkid2, which is removed by DR
923 * or during system shutdown). In this case, the link (specified by
924 * dir_linkid1) would inherit all the configuration of dir_linkid2,
925 * and dir_linkid1 and its configuration would be lost.
926 *
927 * Remove per-link autopush configuration of dir_linkid1 in this case.
928 */
929 key = (mod_hash_key_t)(uintptr_t)dir->dir_linkid1;
930 rw_enter(&dld_ap_hash_lock, RW_WRITER);
931 if (mod_hash_find(dld_ap_hashp, key, &val) != 0) {
932 rw_exit(&dld_ap_hash_lock);
933 return (0);
934 }
935
936 VERIFY(mod_hash_remove(dld_ap_hashp, key, &val) == 0);
937 kmem_free(val, sizeof (dld_ap_t));
938 rw_exit(&dld_ap_hash_lock);
939 return (0);
940 }
941
942 static int
943 drv_ioc_setap(datalink_id_t linkid, struct dlautopush *dlap)
944 {
945 dld_ap_t *dap;
946 int i;
947 mod_hash_key_t key;
948
949 if (dlap->dap_npush == 0 || dlap->dap_npush > MAXAPUSH)
950 return (EINVAL);
951
952 /*
953 * Validate that the specified list of modules exist.
954 */
955 for (i = 0; i < dlap->dap_npush; i++) {
956 if (fmodsw_find(dlap->dap_aplist[i], FMODSW_LOAD) == NULL)
957 return (EINVAL);
958 }
959
960
961 key = (mod_hash_key_t)(uintptr_t)linkid;
962
963 rw_enter(&dld_ap_hash_lock, RW_WRITER);
964 if (mod_hash_find(dld_ap_hashp, key, (mod_hash_val_t *)&dap) != 0) {
965 dap = kmem_zalloc(sizeof (dld_ap_t), KM_NOSLEEP);
966 if (dap == NULL) {
967 rw_exit(&dld_ap_hash_lock);
968 return (ENOMEM);
969 }
970
971 dap->da_linkid = linkid;
972 VERIFY(mod_hash_insert(dld_ap_hashp, key,
973 (mod_hash_val_t)dap) == 0);
974 }
975
976 /*
977 * Update the configuration.
978 */
979 dap->da_anchor = dlap->dap_anchor;
980 dap->da_npush = dlap->dap_npush;
981 for (i = 0; i < dlap->dap_npush; i++) {
982 (void) strlcpy(dap->da_aplist[i], dlap->dap_aplist[i],
983 FMNAMESZ + 1);
984 }
985 rw_exit(&dld_ap_hash_lock);
986
987 return (0);
988 }
989
990 static int
991 drv_ioc_getap(datalink_id_t linkid, struct dlautopush *dlap)
992 {
993 dld_ap_t *dap;
994 int i;
995
996 rw_enter(&dld_ap_hash_lock, RW_READER);
997 if (mod_hash_find(dld_ap_hashp,
998 (mod_hash_key_t)(uintptr_t)linkid,
999 (mod_hash_val_t *)&dap) != 0) {
1000 rw_exit(&dld_ap_hash_lock);
1001 dlap->dap_npush = 0;
1002 return (0);
1003 }
1004
1005 /*
1006 * Retrieve the configuration.
1007 */
1008 dlap->dap_anchor = dap->da_anchor;
1009 dlap->dap_npush = dap->da_npush;
1010 for (i = 0; i < dap->da_npush; i++) {
1011 (void) strlcpy(dlap->dap_aplist[i], dap->da_aplist[i],
1012 FMNAMESZ + 1);
1013 }
1014 rw_exit(&dld_ap_hash_lock);
1015
1016 return (0);
1017 }
1018
1019 static int
1020 drv_ioc_clrap(datalink_id_t linkid)
1021 {
1022 mod_hash_val_t val;
1023 mod_hash_key_t key;
1024
1025 key = (mod_hash_key_t)(uintptr_t)linkid;
1026
1027 rw_enter(&dld_ap_hash_lock, RW_WRITER);
1028 if (mod_hash_find(dld_ap_hashp, key, &val) != 0) {
1029 rw_exit(&dld_ap_hash_lock);
1030 return (0);
1031 }
1032
1033 VERIFY(mod_hash_remove(dld_ap_hashp, key, &val) == 0);
1034 kmem_free(val, sizeof (dld_ap_t));
1035 rw_exit(&dld_ap_hash_lock);
1036 return (0);
1037 }
1038
1039 /*
1040 * DLDIOC_DOORSERVER
1041 */
1042 /* ARGSUSED */
1043 static int
1044 drv_ioc_doorserver(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1045 {
1046 dld_ioc_door_t *did = karg;
1047
1048 return (dls_mgmt_door_set(did->did_start_door));
1049 }
1050
1051 /*
1052 * DLDIOC_USAGELOG
1053 */
1054 /* ARGSUSED */
1055 static int
1056 drv_ioc_usagelog(void *karg, intptr_t arg, int mode, cred_t *cred,
1057 int *rvalp)
1058 {
1059 dld_ioc_usagelog_t *log_info = (dld_ioc_usagelog_t *)karg;
1060 int err = 0;
1061
1062 if (log_info->ul_type < MAC_LOGTYPE_LINK ||
1063 log_info->ul_type > MAC_LOGTYPE_FLOW)
1064 return (EINVAL);
1065
1066 if (log_info->ul_onoff) {
1067 err = mac_start_logusage(log_info->ul_type,
1068 log_info->ul_interval);
1069 } else {
1070 mac_stop_logusage(log_info->ul_type);
1071 }
1072 return (err);
1073 }
1074
1075 /*
1076 * Process a DLDIOC_ADDFLOW request.
1077 */
1078 /* ARGSUSED */
1079 static int
1080 drv_ioc_addflow(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1081 {
1082 dld_ioc_addflow_t *afp = karg;
1083
1084 return (dld_add_flow(afp->af_linkid, afp->af_name,
1085 &afp->af_flow_desc, &afp->af_resource_props));
1086 }
1087
1088 /*
1089 * Process a DLDIOC_REMOVEFLOW request.
1090 */
1091 /* ARGSUSED */
1092 static int
1093 drv_ioc_removeflow(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1094 {
1095 dld_ioc_removeflow_t *rfp = karg;
1096
1097 return (dld_remove_flow(rfp->rf_name));
1098 }
1099
1100 /*
1101 * Process a DLDIOC_MODIFYFLOW request.
1102 */
1103 /* ARGSUSED */
1104 static int
1105 drv_ioc_modifyflow(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1106 {
1107 dld_ioc_modifyflow_t *mfp = karg;
1108
1109 return (dld_modify_flow(mfp->mf_name, &mfp->mf_resource_props));
1110 }
1111
1112 /*
1113 * Process a DLDIOC_WALKFLOW request.
1114 */
1115 /* ARGSUSED */
1116 static int
1117 drv_ioc_walkflow(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1118 {
1119 dld_ioc_walkflow_t *wfp = karg;
1120
1121 return (dld_walk_flow(wfp, arg, cred));
1122 }
1123
1124 /*
1125 * Check for GLDv3 autopush information. There are three cases:
1126 *
1127 * 1. If devp points to a GLDv3 datalink and it has autopush configuration,
1128 * fill dlap in with that information and return 0.
1129 *
1130 * 2. If devp points to a GLDv3 datalink but it doesn't have autopush
1131 * configuration, then replace devp with the physical device (if one
1132 * exists) and return 1. This allows stropen() to find the old-school
1133 * per-driver autopush configuration. (For softmac, the result is that
1134 * the softmac dev_t is replaced with the legacy device's dev_t).
1135 *
1136 * 3. If neither of the above apply, don't touch the args and return -1.
1137 */
1138 int
1139 dld_autopush(dev_t *devp, struct dlautopush *dlap)
1140 {
1141 dld_ap_t *dap;
1142 datalink_id_t linkid;
1143 dev_t phydev;
1144
1145 if (!GLDV3_DRV(getmajor(*devp)))
1146 return (-1);
1147
1148 /*
1149 * Find the linkid by the link's dev_t.
1150 */
1151 if (dls_devnet_dev2linkid(*devp, &linkid) != 0)
1152 return (-1);
1153
1154 /*
1155 * Find the autopush configuration associated with the linkid.
1156 */
1157 rw_enter(&dld_ap_hash_lock, RW_READER);
1158 if (mod_hash_find(dld_ap_hashp, (mod_hash_key_t)(uintptr_t)linkid,
1159 (mod_hash_val_t *)&dap) == 0) {
1160 *dlap = dap->da_ap;
1161 rw_exit(&dld_ap_hash_lock);
1162 return (0);
1163 }
1164 rw_exit(&dld_ap_hash_lock);
1165
1166 if (dls_devnet_phydev(linkid, &phydev) != 0)
1167 return (-1);
1168
1169 *devp = phydev;
1170 return (1);
1171 }
1172
1173 /*
1174 * Secure objects implementation
1175 */
1176
1177 /* ARGSUSED */
1178 static int
1179 drv_secobj_ctor(void *buf, void *arg, int kmflag)
1180 {
1181 bzero(buf, sizeof (dld_secobj_t));
1182 return (0);
1183 }
1184
1185 static void
1186 drv_secobj_init(void)
1187 {
1188 rw_init(&drv_secobj_lock, NULL, RW_DEFAULT, NULL);
1189 drv_secobj_cachep = kmem_cache_create("drv_secobj_cache",
1190 sizeof (dld_secobj_t), 0, drv_secobj_ctor, NULL,
1191 NULL, NULL, NULL, 0);
1192 drv_secobj_hash = mod_hash_create_extended("drv_secobj_hash",
1193 SECOBJ_WEP_HASHSZ, mod_hash_null_keydtor, mod_hash_null_valdtor,
1194 mod_hash_bystr, NULL, mod_hash_strkey_cmp, KM_SLEEP);
1195 }
1196
1197 static void
1198 drv_secobj_fini(void)
1199 {
1200 mod_hash_destroy_hash(drv_secobj_hash);
1201 kmem_cache_destroy(drv_secobj_cachep);
1202 rw_destroy(&drv_secobj_lock);
1203 }
1204
1205 /* ARGSUSED */
1206 static int
1207 drv_ioc_secobj_set(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1208 {
1209 dld_ioc_secobj_set_t *ssp = karg;
1210 dld_secobj_t *sobjp, *objp;
1211 int err;
1212
1213 sobjp = &ssp->ss_obj;
1214
1215 if (sobjp->so_class != DLD_SECOBJ_CLASS_WEP &&
1216 sobjp->so_class != DLD_SECOBJ_CLASS_WPA)
1217 return (EINVAL);
1218
1219 if (sobjp->so_name[DLD_SECOBJ_NAME_MAX - 1] != '\0' ||
1220 sobjp->so_len > DLD_SECOBJ_VAL_MAX)
1221 return (EINVAL);
1222
1223 rw_enter(&drv_secobj_lock, RW_WRITER);
1224 err = mod_hash_find(drv_secobj_hash, (mod_hash_key_t)sobjp->so_name,
1225 (mod_hash_val_t *)&objp);
1226 if (err == 0) {
1227 if ((ssp->ss_flags & DLD_SECOBJ_OPT_CREATE) != 0) {
1228 rw_exit(&drv_secobj_lock);
1229 return (EEXIST);
1230 }
1231 } else {
1232 ASSERT(err == MH_ERR_NOTFOUND);
1233 if ((ssp->ss_flags & DLD_SECOBJ_OPT_CREATE) == 0) {
1234 rw_exit(&drv_secobj_lock);
1235 return (ENOENT);
1236 }
1237 objp = kmem_cache_alloc(drv_secobj_cachep, KM_SLEEP);
1238 (void) strlcpy(objp->so_name, sobjp->so_name,
1239 DLD_SECOBJ_NAME_MAX);
1240
1241 VERIFY(mod_hash_insert(drv_secobj_hash,
1242 (mod_hash_key_t)objp->so_name, (mod_hash_val_t)objp) == 0);
1243 }
1244 bcopy(sobjp->so_val, objp->so_val, sobjp->so_len);
1245 objp->so_len = sobjp->so_len;
1246 objp->so_class = sobjp->so_class;
1247 rw_exit(&drv_secobj_lock);
1248 return (0);
1249 }
1250
1251 typedef struct dld_secobj_state {
1252 uint_t ss_free;
1253 uint_t ss_count;
1254 int ss_rc;
1255 int ss_mode;
1256 dld_secobj_t *ss_objp;
1257 } dld_secobj_state_t;
1258
1259 /* ARGSUSED */
1260 static uint_t
1261 drv_secobj_walker(mod_hash_key_t key, mod_hash_val_t *val, void *arg)
1262 {
1263 dld_secobj_state_t *statep = arg;
1264 dld_secobj_t *sobjp = (dld_secobj_t *)val;
1265
1266 if (statep->ss_free < sizeof (dld_secobj_t)) {
1267 statep->ss_rc = ENOSPC;
1268 return (MH_WALK_TERMINATE);
1269 }
1270 if (ddi_copyout(sobjp, statep->ss_objp, sizeof (*sobjp),
1271 statep->ss_mode) != 0) {
1272 statep->ss_rc = EFAULT;
1273 return (MH_WALK_TERMINATE);
1274 }
1275 statep->ss_objp++;
1276 statep->ss_free -= sizeof (dld_secobj_t);
1277 statep->ss_count++;
1278 return (MH_WALK_CONTINUE);
1279 }
1280
1281 /* ARGSUSED */
1282 static int
1283 drv_ioc_secobj_get(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1284 {
1285 dld_ioc_secobj_get_t *sgp = karg;
1286 dld_secobj_t *sobjp, *objp;
1287 int err;
1288
1289 sobjp = &sgp->sg_obj;
1290 if (sobjp->so_name[DLD_SECOBJ_NAME_MAX - 1] != '\0')
1291 return (EINVAL);
1292
1293 rw_enter(&drv_secobj_lock, RW_READER);
1294 if (sobjp->so_name[0] != '\0') {
1295 err = mod_hash_find(drv_secobj_hash,
1296 (mod_hash_key_t)sobjp->so_name, (mod_hash_val_t *)&objp);
1297 if (err != 0) {
1298 ASSERT(err == MH_ERR_NOTFOUND);
1299 rw_exit(&drv_secobj_lock);
1300 return (ENOENT);
1301 }
1302 bcopy(objp->so_val, sobjp->so_val, objp->so_len);
1303 sobjp->so_len = objp->so_len;
1304 sobjp->so_class = objp->so_class;
1305 sgp->sg_count = 1;
1306 } else {
1307 dld_secobj_state_t state;
1308
1309 state.ss_free = sgp->sg_size - sizeof (dld_ioc_secobj_get_t);
1310 state.ss_count = 0;
1311 state.ss_rc = 0;
1312 state.ss_mode = mode;
1313 state.ss_objp = (dld_secobj_t *)((uchar_t *)arg +
1314 sizeof (dld_ioc_secobj_get_t));
1315
1316 mod_hash_walk(drv_secobj_hash, drv_secobj_walker, &state);
1317 if (state.ss_rc != 0) {
1318 rw_exit(&drv_secobj_lock);
1319 return (state.ss_rc);
1320 }
1321 sgp->sg_count = state.ss_count;
1322 }
1323 rw_exit(&drv_secobj_lock);
1324 return (0);
1325 }
1326
1327 /* ARGSUSED */
1328 static int
1329 drv_ioc_secobj_unset(void *karg, intptr_t arg, int mode, cred_t *cred,
1330 int *rvalp)
1331 {
1332 dld_ioc_secobj_unset_t *sup = karg;
1333 dld_secobj_t *objp;
1334 mod_hash_val_t val;
1335 int err;
1336
1337 if (sup->su_name[DLD_SECOBJ_NAME_MAX - 1] != '\0')
1338 return (EINVAL);
1339
1340 rw_enter(&drv_secobj_lock, RW_WRITER);
1341 err = mod_hash_find(drv_secobj_hash, (mod_hash_key_t)sup->su_name,
1342 (mod_hash_val_t *)&objp);
1343 if (err != 0) {
1344 ASSERT(err == MH_ERR_NOTFOUND);
1345 rw_exit(&drv_secobj_lock);
1346 return (ENOENT);
1347 }
1348 VERIFY(mod_hash_remove(drv_secobj_hash, (mod_hash_key_t)sup->su_name,
1349 (mod_hash_val_t *)&val) == 0);
1350 ASSERT(objp == (dld_secobj_t *)val);
1351
1352 kmem_cache_free(drv_secobj_cachep, objp);
1353 rw_exit(&drv_secobj_lock);
1354 return (0);
1355 }
1356
1357 /* ARGSUSED */
1358 static int
1359 drv_ioc_gettran(void *karg, intptr_t arg, int mode, cred_t *cred,
1360 int *rvalp)
1361 {
1362 int ret = 0;
1363 mac_perim_handle_t mph = NULL;
1364 dls_dl_handle_t dlh = NULL;
1365 dls_link_t *dlp = NULL;
1366 dld_ioc_gettran_t *dgt = karg;
1367
1368 if ((ret = dls_devnet_hold_tmp(dgt->dgt_linkid, &dlh)) != 0)
1369 goto done;
1370
1371 if ((ret = mac_perim_enter_by_macname(dls_devnet_mac(dlh), &mph)) != 0)
1372 goto done;
1373
1374 if ((ret = dls_link_hold(dls_devnet_mac(dlh), &dlp)) != 0)
1375 goto done;
1376
1377 /*
1378 * Make sure that this link belongs to the zone.
1379 */
1380 if (crgetzoneid(cred) != dls_devnet_getownerzid(dlh)) {
1381 ret = ENOENT;
1382 goto done;
1383 }
1384
1385 if (dgt->dgt_tran_id == DLDIOC_GETTRAN_GETNTRAN) {
1386 ret = mac_transceiver_count(dlp->dl_mh, &dgt->dgt_tran_id);
1387 } else {
1388 ret = mac_transceiver_info(dlp->dl_mh, dgt->dgt_tran_id,
1389 &dgt->dgt_present, &dgt->dgt_usable);
1390 }
1391
1392 done:
1393 if (dlp != NULL)
1394 dls_link_rele(dlp);
1395
1396 if (mph != NULL)
1397 mac_perim_exit(mph);
1398
1399 if (dlh != NULL)
1400 dls_devnet_rele_tmp(dlh);
1401
1402 return (ret);
1403 }
1404
1405 /* ARGSUSED */
1406 static int
1407 drv_ioc_readtran(void *karg, intptr_t arg, int mode, cred_t *cred,
1408 int *rvalp)
1409 {
1410 int ret = 0;
1411 mac_perim_handle_t mph = NULL;
1412 dls_dl_handle_t dlh = NULL;
1413 dls_link_t *dlp = NULL;
1414 dld_ioc_tranio_t *dti = karg;
1415 uint8_t buf[256];
1416 size_t nr;
1417
1418 /*
1419 * Be strict for the moment
1420 */
1421 if (dti->dti_nbytes != 256 || dti->dti_off != 0)
1422 return (EINVAL);
1423
1424 if ((ret = dls_devnet_hold_tmp(dti->dti_linkid, &dlh)) != 0)
1425 goto done;
1426
1427 if ((ret = mac_perim_enter_by_macname(dls_devnet_mac(dlh), &mph)) != 0)
1428 goto done;
1429
1430 if ((ret = dls_link_hold(dls_devnet_mac(dlh), &dlp)) != 0)
1431 goto done;
1432
1433 /*
1434 * Make sure that this link belongs to the zone.
1435 */
1436 if (crgetzoneid(cred) != dls_devnet_getownerzid(dlh)) {
1437 ret = ENOENT;
1438 goto done;
1439 }
1440
1441 bzero(buf, sizeof (buf));
1442 if ((ret = mac_transceiver_read(dlp->dl_mh, dti->dti_tran_id,
1443 dti->dti_page, buf, dti->dti_nbytes, dti->dti_off, &nr)) == 0) {
1444 dti->dti_nbytes = nr;
1445 ret = ddi_copyout(buf, (void *)(uintptr_t)dti->dti_buf,
1446 sizeof (buf), mode);
1447 }
1448
1449 done:
1450 if (dlp != NULL)
1451 dls_link_rele(dlp);
1452
1453 if (mph != NULL)
1454 mac_perim_exit(mph);
1455
1456 if (dlh != NULL)
1457 dls_devnet_rele_tmp(dlh);
1458
1459 return (ret);
1460 }
1461
1462 /* ARGSUSED */
1463 static int
1464 drv_ioc_getled(void *karg, intptr_t arg, int mode, cred_t *cred,
1465 int *rvalp)
1466 {
1467 int ret = 0;
1468 mac_perim_handle_t mph = NULL;
1469 dls_dl_handle_t dlh = NULL;
1470 dls_link_t *dlp = NULL;
1471 dld_ioc_led_t *dil = karg;
1472
1473 if ((mode & FREAD) == 0)
1474 return (EBADF);
1475
1476 if ((ret = dls_devnet_hold_tmp(dil->dil_linkid, &dlh)) != 0)
1477 goto done;
1478
1479 if ((ret = mac_perim_enter_by_macname(dls_devnet_mac(dlh), &mph)) != 0)
1480 goto done;
1481
1482 if ((ret = dls_link_hold(dls_devnet_mac(dlh), &dlp)) != 0)
1483 goto done;
1484
1485 /*
1486 * Make sure that this link belongs to the zone.
1487 */
1488 if (crgetzoneid(cred) != dls_devnet_getownerzid(dlh)) {
1489 ret = ENOENT;
1490 goto done;
1491 }
1492
1493 ret = mac_led_get(dlp->dl_mh, &dil->dil_supported, &dil->dil_active);
1494
1495 done:
1496 if (dlp != NULL)
1497 dls_link_rele(dlp);
1498
1499 if (mph != NULL)
1500 mac_perim_exit(mph);
1501
1502 if (dlh != NULL)
1503 dls_devnet_rele_tmp(dlh);
1504
1505 return (ret);
1506 }
1507
1508 /* ARGSUSED */
1509 static int
1510 drv_ioc_setled(void *karg, intptr_t arg, int mode, cred_t *cred,
1511 int *rvalp)
1512 {
1513 int ret = 0;
1514 mac_perim_handle_t mph = NULL;
1515 dls_dl_handle_t dlh = NULL;
1516 dls_link_t *dlp = NULL;
1517 dld_ioc_led_t *dil = karg;
1518
1519 if ((mode & FWRITE) == 0)
1520 return (EBADF);
1521
1522 if ((ret = dls_devnet_hold_tmp(dil->dil_linkid, &dlh)) != 0)
1523 goto done;
1524
1525 if ((ret = mac_perim_enter_by_macname(dls_devnet_mac(dlh), &mph)) != 0)
1526 goto done;
1527
1528 if ((ret = dls_link_hold(dls_devnet_mac(dlh), &dlp)) != 0)
1529 goto done;
1530
1531 /*
1532 * Make sure that this link belongs to the zone.
1533 */
1534 if (crgetzoneid(cred) != dls_devnet_getownerzid(dlh)) {
1535 ret = ENOENT;
1536 goto done;
1537 }
1538
1539 ret = mac_led_set(dlp->dl_mh, dil->dil_active);
1540
1541 done:
1542 if (dlp != NULL)
1543 dls_link_rele(dlp);
1544
1545 if (mph != NULL)
1546 mac_perim_exit(mph);
1547
1548 if (dlh != NULL)
1549 dls_devnet_rele_tmp(dlh);
1550
1551 return (ret);
1552 }
1553
1554
1555 /*
1556 * Note that ioctls that modify links have a NULL di_priv_func(), as
1557 * privileges can only be checked after we know the class of the link being
1558 * modified (due to class-specific fine-grained privileges such as
1559 * sys_iptun_config).
1560 */
1561 static dld_ioc_info_t drv_ioc_list[] = {
1562 {DLDIOC_ATTR, DLDCOPYINOUT, sizeof (dld_ioc_attr_t),
1563 drv_ioc_attr, NULL},
1564 {DLDIOC_PHYS_ATTR, DLDCOPYINOUT, sizeof (dld_ioc_phys_attr_t),
1565 drv_ioc_phys_attr, NULL},
1566 {DLDIOC_SECOBJ_SET, DLDCOPYIN, sizeof (dld_ioc_secobj_set_t),
1567 drv_ioc_secobj_set, secpolicy_dl_config},
1568 {DLDIOC_SECOBJ_GET, DLDCOPYINOUT, sizeof (dld_ioc_secobj_get_t),
1569 drv_ioc_secobj_get, secpolicy_dl_config},
1570 {DLDIOC_SECOBJ_UNSET, DLDCOPYIN, sizeof (dld_ioc_secobj_unset_t),
1571 drv_ioc_secobj_unset, secpolicy_dl_config},
1572 {DLDIOC_DOORSERVER, DLDCOPYIN, sizeof (dld_ioc_door_t),
1573 drv_ioc_doorserver, secpolicy_dl_config},
1574 {DLDIOC_RENAME, DLDCOPYIN, sizeof (dld_ioc_rename_t),
1575 drv_ioc_rename, NULL},
1576 {DLDIOC_MACADDRGET, DLDCOPYINOUT, sizeof (dld_ioc_macaddrget_t),
1577 drv_ioc_macaddrget, NULL},
1578 {DLDIOC_ADDFLOW, DLDCOPYIN, sizeof (dld_ioc_addflow_t),
1579 drv_ioc_addflow, secpolicy_dl_config},
1580 {DLDIOC_REMOVEFLOW, DLDCOPYIN, sizeof (dld_ioc_removeflow_t),
1581 drv_ioc_removeflow, secpolicy_dl_config},
1582 {DLDIOC_MODIFYFLOW, DLDCOPYIN, sizeof (dld_ioc_modifyflow_t),
1583 drv_ioc_modifyflow, secpolicy_dl_config},
1584 {DLDIOC_WALKFLOW, DLDCOPYINOUT, sizeof (dld_ioc_walkflow_t),
1585 drv_ioc_walkflow, NULL},
1586 {DLDIOC_USAGELOG, DLDCOPYIN, sizeof (dld_ioc_usagelog_t),
1587 drv_ioc_usagelog, secpolicy_dl_config},
1588 {DLDIOC_SETMACPROP, DLDCOPYIN, sizeof (dld_ioc_macprop_t),
1589 drv_ioc_setprop, NULL},
1590 {DLDIOC_GETMACPROP, DLDCOPYIN, sizeof (dld_ioc_macprop_t),
1591 drv_ioc_getprop, NULL},
1592 {DLDIOC_GETHWGRP, DLDCOPYINOUT, sizeof (dld_ioc_hwgrpget_t),
1593 drv_ioc_hwgrpget, NULL},
1594 {DLDIOC_GETTRAN, DLDCOPYINOUT, sizeof (dld_ioc_gettran_t),
1595 drv_ioc_gettran, NULL },
1596 {DLDIOC_READTRAN, DLDCOPYINOUT, sizeof (dld_ioc_tranio_t),
1597 drv_ioc_readtran, NULL },
1598 {DLDIOC_GETLED, DLDCOPYINOUT, sizeof (dld_ioc_led_t),
1599 drv_ioc_getled, NULL },
1600 {DLDIOC_SETLED, DLDCOPYIN, sizeof (dld_ioc_led_t),
1601 drv_ioc_setled, secpolicy_dl_config}
1602 };
1603
1604 typedef struct dld_ioc_modentry {
1605 uint16_t dim_modid; /* Top 16 bits of ioctl command */
1606 char *dim_modname; /* Module to be loaded */
1607 int ctrl_node_inst; /* Ctrl node instance */
1608 dld_ioc_info_t *dim_list; /* array of ioctl structures */
1609 uint_t dim_count; /* number of elements in dim_list */
1610 } dld_ioc_modentry_t;
1611
1612 /*
1613 * For all modules except for dld, dim_list and dim_count are assigned
1614 * when the modules register their ioctls in dld_ioc_register(). We
1615 * can statically initialize dld's ioctls in-line here; there's no
1616 * need for it to call dld_ioc_register() itself. ctrl_node_inst controls
1617 * whether an instance of the device will be held or the driver. If set to
1618 * a non-negative integer, device instance specified in ctrl_node_inst will
1619 * be held; so dld_ioc_register() _must_ be called in xxx_attach() routine of
1620 * the driver. If set to -1, driver will be held; so dld_ioc_register() _must_
1621 * be called in xxx_init() routine of the driver.
1622 */
1623 static dld_ioc_modentry_t dld_ioc_modtable[] = {
1624 {DLD_IOC, "dld", 0, drv_ioc_list, DLDIOCCNT(drv_ioc_list)},
1625 {AGGR_IOC, "aggr", 0, NULL, 0},
1626 {VNIC_IOC, "vnic", 0, NULL, 0},
1627 {SIMNET_IOC, "simnet", 0, NULL, 0},
1628 {BRIDGE_IOC, "bridge", 0, NULL, 0},
1629 {IPTUN_IOC, "iptun", 0, NULL, 0},
1630 {IBPART_IOC, "ibp", -1, NULL, 0},
1631 {OVERLAY_IOC, "overlay", 0, NULL, 0}
1632 };
1633 #define DLDIOC_CNT \
1634 (sizeof (dld_ioc_modtable) / sizeof (dld_ioc_modentry_t))
1635
1636 static dld_ioc_modentry_t *
1637 dld_ioc_findmod(uint16_t modid)
1638 {
1639 int i;
1640
1641 for (i = 0; i < DLDIOC_CNT; i++) {
1642 if (modid == dld_ioc_modtable[i].dim_modid)
1643 return (&dld_ioc_modtable[i]);
1644 }
1645 return (NULL);
1646 }
1647
1648 int
1649 dld_ioc_register(uint16_t modid, dld_ioc_info_t *list, uint_t count)
1650 {
1651 dld_ioc_modentry_t *dim = dld_ioc_findmod(modid);
1652
1653 if (dim == NULL)
1654 return (ENOENT);
1655
1656 dim->dim_list = list;
1657 dim->dim_count = count;
1658 return (0);
1659 }
1660
1661 void
1662 dld_ioc_unregister(uint16_t modid)
1663 {
1664 VERIFY(dld_ioc_register(modid, NULL, 0) == 0);
1665 }
1666
1667 /*
1668 * The general design with GLDv3 ioctls is that all ioctls issued
1669 * through /dev/dld go through this drv_ioctl() function. This
1670 * function handles all ioctls on behalf of modules listed in
1671 * dld_ioc_modtable.
1672 *
1673 * When an ioctl is received, this function looks for the associated
1674 * module-id-specific ioctl information using dld_ioc_findmod(). The
1675 * call to ddi_hold_driver() or ddi_hold_devi_by_instance() on the
1676 * associated device will cause the kernel module responsible for the
1677 * ioctl to be loaded if it's not already loaded, which should result
1678 * in that module calling dld_ioc_register(), thereby filling in the
1679 * dim_list containing the details for the ioctl being processed.
1680 *
1681 * This function can then perform operations such as copyin() data and
1682 * do credential checks based on the registered ioctl information,
1683 * then issue the callback function di_func() registered by the
1684 * responsible module. Upon return, the appropriate copyout()
1685 * operation can be performed and the operation completes.
1686 */
1687 /* ARGSUSED */
1688 static int
1689 drv_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *cred, int *rvalp)
1690 {
1691 dld_ioc_modentry_t *dim;
1692 dld_ioc_info_t *info;
1693 dev_info_t *dip = NULL;
1694 struct dev_ops *dops = NULL;
1695 major_t major;
1696 void *buf = NULL;
1697 size_t sz;
1698 int i, err;
1699
1700 if ((dim = dld_ioc_findmod(DLD_IOC_MODID(cmd))) == NULL)
1701 return (ENOTSUP);
1702
1703 major = ddi_name_to_major(dim->dim_modname);
1704
1705 if (dim->ctrl_node_inst == -1) {
1706 /*
1707 * No dedicated instance to process ioctls.
1708 * dld_ioc_register() is called in xxx_init().
1709 */
1710 dops = ddi_hold_driver(major);
1711 } else {
1712 /*
1713 * Dedicated instance to handle ioctl.
1714 * dld_ioc_register() is called in xxx_attach().
1715 */
1716 dip = ddi_hold_devi_by_instance(major, dim->ctrl_node_inst, 0);
1717 }
1718
1719 if ((dip == NULL && dops == NULL) || dim->dim_list == NULL) {
1720 err = ENODEV;
1721 goto done;
1722 }
1723
1724 for (i = 0; i < dim->dim_count; i++) {
1725 if (cmd == dim->dim_list[i].di_cmd)
1726 break;
1727 }
1728 if (i == dim->dim_count) {
1729 err = ENOTSUP;
1730 goto done;
1731 }
1732
1733 info = &dim->dim_list[i];
1734
1735 if (info->di_priv_func != NULL &&
1736 (err = info->di_priv_func(cred)) != 0)
1737 goto done;
1738
1739 sz = info->di_argsize;
1740 if ((buf = kmem_zalloc(sz, KM_NOSLEEP)) == NULL) {
1741 err = ENOMEM;
1742 goto done;
1743 }
1744
1745 if ((info->di_flags & DLDCOPYIN) &&
1746 ddi_copyin((void *)arg, buf, sz, mode) != 0) {
1747 err = EFAULT;
1748 goto done;
1749 }
1750
1751 err = info->di_func(buf, arg, mode, cred, rvalp);
1752
1753 if ((info->di_flags & DLDCOPYOUT) &&
1754 ddi_copyout(buf, (void *)arg, sz, mode) != 0 && err == 0)
1755 err = EFAULT;
1756
1757 done:
1758 if (buf != NULL)
1759 kmem_free(buf, sz);
1760 if (dip != NULL)
1761 ddi_release_devi(dip);
1762 if (dops != NULL)
1763 ddi_rele_driver(major);
1764 return (err);
1765 }