xref: /illumos-gate/usr/src/lib/libdladm/common/libdlvnic.c (revision 56f33205c9ed776c3c909e07d52e94610a675740)
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <stdio.h>
27 #include <sys/types.h>
28 #include <sys/stat.h>
29 #include <string.h>
30 #include <fcntl.h>
31 #include <unistd.h>
32 #include <stropts.h>
33 #include <stdlib.h>
34 #include <errno.h>
35 #include <strings.h>
36 #include <libintl.h>
37 #include <net/if_types.h>
38 #include <net/if_dl.h>
39 #include <sys/dld.h>
40 #include <libdladm_impl.h>
41 #include <libvrrpadm.h>
42 #include <libdllink.h>
43 #include <libdlbridge.h>
44 #include <libdlvnic.h>
45 
46 /*
47  * VNIC administration library.
48  */
49 
50 /*
51  * Default random MAC address prefix (locally administered).
52  */
53 static char dladm_vnic_def_prefix[] = {0x02, 0x08, 0x20};
54 
55 static dladm_status_t	dladm_vnic_persist_conf(dladm_handle_t,
56 			    const char *name, dladm_vnic_attr_t *,
57 			    datalink_class_t);
58 static const char	*dladm_vnic_macaddr2str(const uchar_t *, char *);
59 static dladm_status_t	dladm_vnic_str2macaddr(const char *, uchar_t *);
60 
61 /*
62  * Convert a diagnostic returned by the kernel into a dladm_status_t.
63  */
64 static dladm_status_t
65 dladm_vnic_diag2status(vnic_ioc_diag_t ioc_diag)
66 {
67 	switch (ioc_diag) {
68 	case VNIC_IOC_DIAG_NONE:
69 		return (DLADM_STATUS_OK);
70 	case VNIC_IOC_DIAG_MACADDRLEN_INVALID:
71 		return (DLADM_STATUS_INVALIDMACADDRLEN);
72 	case VNIC_IOC_DIAG_MACADDR_NIC:
73 		return (DLADM_STATUS_INVALIDMACADDRNIC);
74 	case VNIC_IOC_DIAG_MACADDR_INUSE:
75 		return (DLADM_STATUS_INVALIDMACADDRINUSE);
76 	case VNIC_IOC_DIAG_MACFACTORYSLOTINVALID:
77 		return (DLADM_STATUS_MACFACTORYSLOTINVALID);
78 	case VNIC_IOC_DIAG_MACFACTORYSLOTUSED:
79 		return (DLADM_STATUS_MACFACTORYSLOTUSED);
80 	case VNIC_IOC_DIAG_MACFACTORYSLOTALLUSED:
81 		return (DLADM_STATUS_MACFACTORYSLOTALLUSED);
82 	case VNIC_IOC_DIAG_MACFACTORYNOTSUP:
83 		return (DLADM_STATUS_MACFACTORYNOTSUP);
84 	case VNIC_IOC_DIAG_MACPREFIX_INVALID:
85 		return (DLADM_STATUS_INVALIDMACPREFIX);
86 	case VNIC_IOC_DIAG_MACPREFIXLEN_INVALID:
87 		return (DLADM_STATUS_INVALIDMACPREFIXLEN);
88 	case VNIC_IOC_DIAG_MACMARGIN_INVALID:
89 		return (DLADM_STATUS_INVALID_MACMARGIN);
90 	case VNIC_IOC_DIAG_NO_HWRINGS:
91 		return (DLADM_STATUS_NO_HWRINGS);
92 	case VNIC_IOC_DIAG_MACADDR_INVALID:
93 		return (DLADM_STATUS_INVALIDMACADDR);
94 	default:
95 		return (DLADM_STATUS_FAILED);
96 	}
97 }
98 
99 /*
100  * Send a create command to the VNIC driver.
101  */
102 dladm_status_t
103 i_dladm_vnic_create_sys(dladm_handle_t handle, dladm_vnic_attr_t *attr)
104 {
105 	int rc;
106 	vnic_ioc_create_t ioc;
107 	dladm_status_t status = DLADM_STATUS_OK;
108 
109 	bzero(&ioc, sizeof (ioc));
110 	ioc.vc_vnic_id = attr->va_vnic_id;
111 	ioc.vc_link_id = attr->va_link_id;
112 	ioc.vc_mac_addr_type = attr->va_mac_addr_type;
113 	ioc.vc_mac_len = attr->va_mac_len;
114 	ioc.vc_mac_slot = attr->va_mac_slot;
115 	ioc.vc_mac_prefix_len = attr->va_mac_prefix_len;
116 	ioc.vc_vid = attr->va_vid;
117 	ioc.vc_vrid = attr->va_vrid;
118 	ioc.vc_af = attr->va_af;
119 	ioc.vc_flags = attr->va_force ? VNIC_IOC_CREATE_FORCE : 0;
120 	ioc.vc_flags |= attr->va_hwrings ? VNIC_IOC_CREATE_REQ_HWRINGS : 0;
121 
122 	if (attr->va_mac_len > 0 || ioc.vc_mac_prefix_len > 0)
123 		bcopy(attr->va_mac_addr, ioc.vc_mac_addr, MAXMACADDRLEN);
124 	bcopy(&attr->va_resource_props, &ioc.vc_resource_props,
125 	    sizeof (mac_resource_props_t));
126 	if (attr->va_link_id == DATALINK_INVALID_LINKID)
127 		ioc.vc_flags |= VNIC_IOC_CREATE_ANCHOR;
128 
129 	rc = ioctl(dladm_dld_fd(handle), VNIC_IOC_CREATE, &ioc);
130 	if (rc < 0)
131 		status = dladm_errno2status(errno);
132 
133 	if (status != DLADM_STATUS_OK) {
134 		if (ioc.vc_diag != VNIC_IOC_DIAG_NONE)
135 			status = dladm_vnic_diag2status(ioc.vc_diag);
136 	}
137 	if (status != DLADM_STATUS_OK)
138 		return (status);
139 
140 	attr->va_mac_addr_type = ioc.vc_mac_addr_type;
141 	switch (ioc.vc_mac_addr_type) {
142 	case VNIC_MAC_ADDR_TYPE_FACTORY:
143 		attr->va_mac_slot = ioc.vc_mac_slot;
144 		break;
145 	case VNIC_MAC_ADDR_TYPE_RANDOM:
146 		bcopy(ioc.vc_mac_addr, attr->va_mac_addr, MAXMACADDRLEN);
147 		attr->va_mac_len = ioc.vc_mac_len;
148 		break;
149 	}
150 	return (status);
151 }
152 
153 /*
154  * Get the configuration information of the given VNIC.
155  */
156 static dladm_status_t
157 i_dladm_vnic_info_active(dladm_handle_t handle, datalink_id_t linkid,
158     dladm_vnic_attr_t *attrp)
159 {
160 	vnic_ioc_info_t ioc;
161 	vnic_info_t *vnic;
162 	int rc;
163 	dladm_status_t status = DLADM_STATUS_OK;
164 
165 	bzero(&ioc, sizeof (ioc));
166 	vnic = &ioc.vi_info;
167 	vnic->vn_vnic_id = linkid;
168 
169 	rc = ioctl(dladm_dld_fd(handle), VNIC_IOC_INFO, &ioc);
170 	if (rc != 0) {
171 		status = dladm_errno2status(errno);
172 		goto bail;
173 	}
174 
175 	attrp->va_vnic_id = vnic->vn_vnic_id;
176 	attrp->va_link_id = vnic->vn_link_id;
177 	attrp->va_mac_addr_type = vnic->vn_mac_addr_type;
178 	bcopy(vnic->vn_mac_addr, attrp->va_mac_addr, MAXMACADDRLEN);
179 	attrp->va_mac_len = vnic->vn_mac_len;
180 	attrp->va_mac_slot = vnic->vn_mac_slot;
181 	attrp->va_mac_prefix_len = vnic->vn_mac_prefix_len;
182 	attrp->va_vid = vnic->vn_vid;
183 	attrp->va_vrid = vnic->vn_vrid;
184 	attrp->va_af = vnic->vn_af;
185 	attrp->va_force = vnic->vn_force;
186 
187 bail:
188 	return (status);
189 }
190 
191 static dladm_status_t
192 i_dladm_vnic_info_persist(dladm_handle_t handle, datalink_id_t linkid,
193     dladm_vnic_attr_t *attrp)
194 {
195 	dladm_conf_t conf;
196 	dladm_status_t status;
197 	char macstr[ETHERADDRL * 3];
198 	char linkover[MAXLINKNAMELEN];
199 	uint64_t u64;
200 	datalink_class_t class;
201 
202 	attrp->va_vnic_id = linkid;
203 	if ((status = dladm_read_conf(handle, linkid, &conf)) !=
204 	    DLADM_STATUS_OK)
205 		return (status);
206 
207 	status = dladm_get_conf_field(handle, conf, FLINKOVER, linkover,
208 	    sizeof (linkover));
209 	if (status != DLADM_STATUS_OK) {
210 		/*
211 		 * This isn't an error, etherstubs don't have a FLINKOVER
212 		 * property.
213 		 */
214 		attrp->va_link_id = DATALINK_INVALID_LINKID;
215 	} else {
216 		if ((status = dladm_name2info(handle, linkover,
217 		    &attrp->va_link_id, NULL, NULL, NULL)) != DLADM_STATUS_OK)
218 			goto done;
219 	}
220 
221 	status = dladm_get_conf_field(handle, conf, FHWRINGS,
222 	    &attrp->va_hwrings, sizeof (boolean_t));
223 
224 	if (status != DLADM_STATUS_OK && status != DLADM_STATUS_NOTFOUND)
225 		goto done;
226 	if (status == DLADM_STATUS_NOTFOUND)
227 		attrp->va_hwrings = B_FALSE;
228 
229 	if ((status = dladm_datalink_id2info(handle, linkid, NULL, &class,
230 	    NULL, NULL, 0)) != DLADM_STATUS_OK)
231 		goto done;
232 
233 	if (class == DATALINK_CLASS_VLAN) {
234 		if (attrp->va_link_id == DATALINK_INVALID_LINKID) {
235 			status = DLADM_STATUS_BADARG;
236 			goto done;
237 		}
238 		attrp->va_mac_addr_type = VNIC_MAC_ADDR_TYPE_PRIMARY;
239 		attrp->va_mac_len = 0;
240 	} else {
241 		status = dladm_get_conf_field(handle, conf, FMADDRTYPE, &u64,
242 		    sizeof (u64));
243 		if (status != DLADM_STATUS_OK)
244 			goto done;
245 
246 		attrp->va_mac_addr_type = (vnic_mac_addr_type_t)u64;
247 
248 		if ((status = dladm_get_conf_field(handle, conf, FVRID,
249 		    &u64, sizeof (u64))) != DLADM_STATUS_OK) {
250 			attrp->va_vrid = VRRP_VRID_NONE;
251 		} else {
252 			attrp->va_vrid = (vrid_t)u64;
253 		}
254 
255 		if ((status = dladm_get_conf_field(handle, conf, FVRAF,
256 		    &u64, sizeof (u64))) != DLADM_STATUS_OK) {
257 			attrp->va_af = AF_UNSPEC;
258 		} else {
259 			attrp->va_af = (int)u64;
260 		}
261 
262 		status = dladm_get_conf_field(handle, conf, FMADDRLEN, &u64,
263 		    sizeof (u64));
264 		attrp->va_mac_len = ((status == DLADM_STATUS_OK) ?
265 		    (uint_t)u64 : ETHERADDRL);
266 
267 		status = dladm_get_conf_field(handle, conf, FMADDRSLOT, &u64,
268 		    sizeof (u64));
269 		attrp->va_mac_slot = ((status == DLADM_STATUS_OK) ?
270 		    (int)u64 : -1);
271 
272 		status = dladm_get_conf_field(handle, conf, FMADDRPREFIXLEN,
273 		    &u64, sizeof (u64));
274 		attrp->va_mac_prefix_len = ((status == DLADM_STATUS_OK) ?
275 		    (uint_t)u64 : sizeof (dladm_vnic_def_prefix));
276 
277 		status = dladm_get_conf_field(handle, conf, FMACADDR, macstr,
278 		    sizeof (macstr));
279 		if (status != DLADM_STATUS_OK)
280 			goto done;
281 
282 		status = dladm_vnic_str2macaddr(macstr, attrp->va_mac_addr);
283 		if (status != DLADM_STATUS_OK)
284 			goto done;
285 	}
286 
287 	status = dladm_get_conf_field(handle, conf, FVLANID, &u64,
288 	    sizeof (u64));
289 	attrp->va_vid = ((status == DLADM_STATUS_OK) ?  (uint16_t)u64 : 0);
290 
291 
292 	status = DLADM_STATUS_OK;
293 done:
294 	dladm_destroy_conf(handle, conf);
295 	return (status);
296 }
297 
298 dladm_status_t
299 dladm_vnic_info(dladm_handle_t handle, datalink_id_t linkid,
300     dladm_vnic_attr_t *attrp, uint32_t flags)
301 {
302 	if (flags == DLADM_OPT_ACTIVE)
303 		return (i_dladm_vnic_info_active(handle, linkid, attrp));
304 	else if (flags == DLADM_OPT_PERSIST)
305 		return (i_dladm_vnic_info_persist(handle, linkid, attrp));
306 	else
307 		return (DLADM_STATUS_BADARG);
308 }
309 
310 /*
311  * Remove a VNIC from the kernel.
312  */
313 dladm_status_t
314 i_dladm_vnic_delete_sys(dladm_handle_t handle, datalink_id_t linkid)
315 {
316 	vnic_ioc_delete_t ioc;
317 	dladm_status_t status = DLADM_STATUS_OK;
318 	int rc;
319 
320 	ioc.vd_vnic_id = linkid;
321 
322 	rc = ioctl(dladm_dld_fd(handle), VNIC_IOC_DELETE, &ioc);
323 	if (rc < 0)
324 		status = dladm_errno2status(errno);
325 
326 	return (status);
327 }
328 
329 /*
330  * Convert between MAC address types and their string representations.
331  */
332 
333 typedef struct dladm_vnic_addr_type_s {
334 	const char		*va_str;
335 	vnic_mac_addr_type_t	va_type;
336 } dladm_vnic_addr_type_t;
337 
338 static dladm_vnic_addr_type_t addr_types[] = {
339 	{"fixed", VNIC_MAC_ADDR_TYPE_FIXED},
340 	{"random", VNIC_MAC_ADDR_TYPE_RANDOM},
341 	{"factory", VNIC_MAC_ADDR_TYPE_FACTORY},
342 	{"auto", VNIC_MAC_ADDR_TYPE_AUTO},
343 	{"fixed", VNIC_MAC_ADDR_TYPE_PRIMARY},
344 	{"vrrp", VNIC_MAC_ADDR_TYPE_VRID}
345 };
346 
347 #define	NADDR_TYPES (sizeof (addr_types) / sizeof (dladm_vnic_addr_type_t))
348 
349 static const char *
350 dladm_vnic_macaddrtype2str(vnic_mac_addr_type_t type)
351 {
352 	int i;
353 
354 	for (i = 0; i < NADDR_TYPES; i++) {
355 		if (type == addr_types[i].va_type)
356 			return (addr_types[i].va_str);
357 	}
358 	return (NULL);
359 }
360 
361 dladm_status_t
362 dladm_vnic_str2macaddrtype(const char *str, vnic_mac_addr_type_t *val)
363 {
364 	int i;
365 	dladm_vnic_addr_type_t *type;
366 
367 	for (i = 0; i < NADDR_TYPES; i++) {
368 		type = &addr_types[i];
369 		if (strncmp(str, type->va_str, strlen(type->va_str)) == 0) {
370 			*val = type->va_type;
371 			return (DLADM_STATUS_OK);
372 		}
373 	}
374 	return (DLADM_STATUS_BADARG);
375 }
376 
377 /*
378  * Based on the VRRP specification, the virtual router MAC address associated
379  * with a virtual router is an IEEE 802 MAC address in the following format:
380  *
381  * IPv4 case: 00-00-5E-00-01-{VRID} (in hex in internet standard bit-order)
382  *
383  * IPv6 case: 00-00-5E-00-02-{VRID} (in hex in internet standard bit-order)
384  */
385 static dladm_status_t
386 i_dladm_vnic_vrrp_mac(vrid_t vrid, int af, uint8_t *mac, uint_t maclen)
387 {
388 	if (maclen < ETHERADDRL || vrid < VRRP_VRID_MIN ||
389 	    vrid > VRRP_VRID_MAX || (af != AF_INET && af != AF_INET6)) {
390 		return (DLADM_STATUS_BADARG);
391 	}
392 
393 	mac[0] = mac[1] = mac[3] = 0x0;
394 	mac[2] = 0x5e;
395 	mac[4] = (af == AF_INET) ? 0x01 : 0x02;
396 	mac[5] = vrid;
397 	return (DLADM_STATUS_OK);
398 }
399 
400 /*
401  * Create a new VNIC / VLAN. Update the configuration file and bring it up.
402  * The "vrid" and "af" arguments are only required if the mac_addr_type is
403  * VNIC_MAC_ADDR_TYPE_VRID. In that case, the MAC address will be caculated
404  * based on the above algorithm.
405  */
406 dladm_status_t
407 dladm_vnic_create(dladm_handle_t handle, const char *vnic, datalink_id_t linkid,
408     vnic_mac_addr_type_t mac_addr_type, uchar_t *mac_addr, uint_t mac_len,
409     int *mac_slot, uint_t mac_prefix_len, uint16_t vid, vrid_t vrid,
410     int af, datalink_id_t *vnic_id_out, dladm_arg_list_t *proplist,
411     uint32_t flags)
412 {
413 	dladm_vnic_attr_t attr;
414 	datalink_id_t vnic_id;
415 	datalink_class_t class;
416 	uint32_t media = DL_ETHER;
417 	char name[MAXLINKNAMELEN];
418 	uchar_t tmp_addr[MAXMACADDRLEN];
419 	dladm_status_t status;
420 	boolean_t is_vlan;
421 	boolean_t is_etherstub;
422 	int i;
423 	boolean_t vnic_created = B_FALSE;
424 	boolean_t conf_set = B_FALSE;
425 
426 	/*
427 	 * Sanity test arguments.
428 	 */
429 	if ((flags & DLADM_OPT_ACTIVE) == 0)
430 		return (DLADM_STATUS_NOTSUP);
431 
432 	is_vlan = ((flags & DLADM_OPT_VLAN) != 0);
433 	if (is_vlan && ((vid < 1 || vid > 4094)))
434 		return (DLADM_STATUS_VIDINVAL);
435 
436 	is_etherstub = (linkid == DATALINK_INVALID_LINKID);
437 
438 	if (!dladm_vnic_macaddrtype2str(mac_addr_type))
439 		return (DLADM_STATUS_INVALIDMACADDRTYPE);
440 
441 	if ((flags & DLADM_OPT_ANCHOR) == 0) {
442 		if ((status = dladm_datalink_id2info(handle, linkid, NULL,
443 		    &class, &media, NULL, 0)) != DLADM_STATUS_OK)
444 			return (status);
445 
446 		if (class == DATALINK_CLASS_VNIC ||
447 		    class == DATALINK_CLASS_VLAN)
448 			return (DLADM_STATUS_BADARG);
449 	} else {
450 		/* it's an anchor VNIC */
451 		if (linkid != DATALINK_INVALID_LINKID || vid != 0)
452 			return (DLADM_STATUS_BADARG);
453 	}
454 
455 	/*
456 	 * Only VRRP VNIC need VRID and address family specified.
457 	 */
458 	if (mac_addr_type != VNIC_MAC_ADDR_TYPE_VRID &&
459 	    (af != AF_UNSPEC || vrid != VRRP_VRID_NONE)) {
460 		return (DLADM_STATUS_BADARG);
461 	}
462 
463 	/*
464 	 * If a random address might be generated, but no prefix
465 	 * was specified by the caller, use the default MAC address
466 	 * prefix.
467 	 */
468 	if ((mac_addr_type == VNIC_MAC_ADDR_TYPE_RANDOM ||
469 	    mac_addr_type == VNIC_MAC_ADDR_TYPE_AUTO) &&
470 	    mac_prefix_len == 0) {
471 		mac_prefix_len = sizeof (dladm_vnic_def_prefix);
472 		mac_addr = tmp_addr;
473 		bcopy(dladm_vnic_def_prefix, mac_addr, mac_prefix_len);
474 	}
475 
476 	/*
477 	 * If this is a VRRP VNIC, generate its MAC address using the given
478 	 * VRID and address family.
479 	 */
480 	if (mac_addr_type == VNIC_MAC_ADDR_TYPE_VRID) {
481 		/*
482 		 * VRRP VNICs must be created over ethernet data-links.
483 		 */
484 		if (vrid < VRRP_VRID_MIN || vrid > VRRP_VRID_MAX ||
485 		    (af != AF_INET && af != AF_INET6) || mac_addr != NULL ||
486 		    mac_len != 0 || mac_prefix_len != 0 ||
487 		    (mac_slot != NULL && *mac_slot != -1) || is_etherstub ||
488 		    media != DL_ETHER) {
489 			return (DLADM_STATUS_BADARG);
490 		}
491 		mac_len = ETHERADDRL;
492 		mac_addr = tmp_addr;
493 		status = i_dladm_vnic_vrrp_mac(vrid, af, mac_addr, mac_len);
494 		if (status != DLADM_STATUS_OK)
495 			return (status);
496 	}
497 
498 	if (mac_len > MAXMACADDRLEN)
499 		return (DLADM_STATUS_INVALIDMACADDRLEN);
500 
501 	if (vnic == NULL) {
502 		flags |= DLADM_OPT_PREFIX;
503 		(void) strlcpy(name, "vnic", sizeof (name));
504 	} else {
505 		(void) strlcpy(name, vnic, sizeof (name));
506 	}
507 
508 	class = is_vlan ? DATALINK_CLASS_VLAN :
509 	    (is_etherstub ? DATALINK_CLASS_ETHERSTUB : DATALINK_CLASS_VNIC);
510 	if ((status = dladm_create_datalink_id(handle, name, class,
511 	    media, flags, &vnic_id)) != DLADM_STATUS_OK)
512 		return (status);
513 
514 	if ((flags & DLADM_OPT_PREFIX) != 0) {
515 		(void) snprintf(name + 4, sizeof (name), "%llu", vnic_id);
516 		flags &= ~DLADM_OPT_PREFIX;
517 	}
518 
519 	bzero(&attr, sizeof (attr));
520 
521 	/* Extract resource_ctl and cpu_list from proplist */
522 	if (proplist != NULL) {
523 		status = dladm_link_proplist_extract(handle, proplist,
524 		    &attr.va_resource_props);
525 		if (status != DLADM_STATUS_OK)
526 			goto done;
527 	}
528 
529 	attr.va_vnic_id = vnic_id;
530 	attr.va_link_id = linkid;
531 	attr.va_mac_addr_type = mac_addr_type;
532 	attr.va_mac_len = mac_len;
533 	if (mac_slot != NULL)
534 		attr.va_mac_slot = *mac_slot;
535 	if (mac_len > 0)
536 		bcopy(mac_addr, attr.va_mac_addr, mac_len);
537 	else if (mac_prefix_len > 0)
538 		bcopy(mac_addr, attr.va_mac_addr, mac_prefix_len);
539 	attr.va_mac_prefix_len = mac_prefix_len;
540 	attr.va_vid = vid;
541 	attr.va_vrid = vrid;
542 	attr.va_af = af;
543 	attr.va_force = (flags & DLADM_OPT_FORCE) != 0;
544 	attr.va_hwrings = (flags & DLADM_OPT_HWRINGS) != 0;
545 
546 	status = i_dladm_vnic_create_sys(handle, &attr);
547 	if (status != DLADM_STATUS_OK)
548 		goto done;
549 	vnic_created = B_TRUE;
550 
551 	/* Save vnic configuration and its properties */
552 	if (!(flags & DLADM_OPT_PERSIST))
553 		goto done;
554 
555 	status = dladm_vnic_persist_conf(handle, name, &attr, class);
556 	if (status != DLADM_STATUS_OK)
557 		goto done;
558 	conf_set = B_TRUE;
559 
560 	if (proplist != NULL) {
561 		for (i = 0; i < proplist->al_count; i++) {
562 			dladm_arg_info_t	*aip = &proplist->al_info[i];
563 
564 			status = dladm_set_linkprop(handle, vnic_id,
565 			    aip->ai_name, aip->ai_val, aip->ai_count,
566 			    DLADM_OPT_PERSIST);
567 			if (status != DLADM_STATUS_OK)
568 				break;
569 		}
570 	}
571 
572 done:
573 	if (status != DLADM_STATUS_OK) {
574 		if (conf_set)
575 			(void) dladm_remove_conf(handle, vnic_id);
576 		if (vnic_created)
577 			(void) i_dladm_vnic_delete_sys(handle, vnic_id);
578 		(void) dladm_destroy_datalink_id(handle, vnic_id, flags);
579 	} else {
580 		if (vnic_id_out != NULL)
581 			*vnic_id_out = vnic_id;
582 		if (mac_slot != NULL)
583 			*mac_slot = attr.va_mac_slot;
584 	}
585 
586 	if (is_vlan) {
587 		dladm_status_t stat2;
588 
589 		stat2 = dladm_bridge_refresh(handle, linkid);
590 		if (status == DLADM_STATUS_OK && stat2 != DLADM_STATUS_OK)
591 			status = stat2;
592 	}
593 	return (status);
594 }
595 
596 /*
597  * Delete a VNIC / VLAN.
598  */
599 dladm_status_t
600 dladm_vnic_delete(dladm_handle_t handle, datalink_id_t linkid, uint32_t flags)
601 {
602 	dladm_status_t status;
603 	datalink_class_t class;
604 
605 	if (flags == 0)
606 		return (DLADM_STATUS_BADARG);
607 
608 	if ((dladm_datalink_id2info(handle, linkid, NULL, &class, NULL, NULL, 0)
609 	    != DLADM_STATUS_OK))
610 		return (DLADM_STATUS_BADARG);
611 
612 	if ((flags & DLADM_OPT_VLAN) != 0) {
613 		if (class != DATALINK_CLASS_VLAN)
614 			return (DLADM_STATUS_BADARG);
615 	} else {
616 		if (class != DATALINK_CLASS_VNIC &&
617 		    class != DATALINK_CLASS_ETHERSTUB)
618 			return (DLADM_STATUS_BADARG);
619 	}
620 
621 	if ((flags & DLADM_OPT_ACTIVE) != 0) {
622 		status = i_dladm_vnic_delete_sys(handle, linkid);
623 		if (status == DLADM_STATUS_OK) {
624 			(void) dladm_set_linkprop(handle, linkid, NULL, NULL, 0,
625 			    DLADM_OPT_ACTIVE);
626 			(void) dladm_destroy_datalink_id(handle, linkid,
627 			    DLADM_OPT_ACTIVE);
628 		} else if (status != DLADM_STATUS_NOTFOUND ||
629 		    !(flags & DLADM_OPT_PERSIST)) {
630 			return (status);
631 		}
632 	}
633 	if ((flags & DLADM_OPT_PERSIST) != 0) {
634 		(void) dladm_remove_conf(handle, linkid);
635 		(void) dladm_destroy_datalink_id(handle, linkid,
636 		    DLADM_OPT_PERSIST);
637 	}
638 	return (dladm_bridge_refresh(handle, linkid));
639 }
640 
641 static const char *
642 dladm_vnic_macaddr2str(const uchar_t *mac, char *buf)
643 {
644 	static char unknown_mac[] = {0, 0, 0, 0, 0, 0};
645 
646 	if (buf == NULL)
647 		return (NULL);
648 
649 	if (bcmp(unknown_mac, mac, ETHERADDRL) == 0)
650 		(void) strlcpy(buf, "unknown", DLADM_STRSIZE);
651 	else
652 		return (_link_ntoa(mac, buf, ETHERADDRL, IFT_OTHER));
653 
654 	return (buf);
655 }
656 
657 static dladm_status_t
658 dladm_vnic_str2macaddr(const char *str, uchar_t *buf)
659 {
660 	int len = 0;
661 	uchar_t *b = _link_aton(str, &len);
662 
663 	if (b == NULL || len >= MAXMACADDRLEN)
664 		return (DLADM_STATUS_BADARG);
665 
666 	bcopy(b, buf, len);
667 	free(b);
668 	return (DLADM_STATUS_OK);
669 }
670 
671 
672 static dladm_status_t
673 dladm_vnic_persist_conf(dladm_handle_t handle, const char *name,
674     dladm_vnic_attr_t *attrp, datalink_class_t class)
675 {
676 	dladm_conf_t conf = DLADM_INVALID_CONF;
677 	dladm_status_t status;
678 	char macstr[ETHERADDRL * 3];
679 	char linkover[MAXLINKNAMELEN];
680 	uint64_t u64;
681 
682 	if ((status = dladm_create_conf(handle, name, attrp->va_vnic_id,
683 	    class, DL_ETHER, &conf)) != DLADM_STATUS_OK)
684 		return (status);
685 
686 	if (attrp->va_link_id != DATALINK_INVALID_LINKID) {
687 		status = dladm_datalink_id2info(handle, attrp->va_link_id, NULL,
688 		    NULL, NULL, linkover, sizeof (linkover));
689 		if (status != DLADM_STATUS_OK)
690 			goto done;
691 		status = dladm_set_conf_field(handle, conf, FLINKOVER,
692 		    DLADM_TYPE_STR, linkover);
693 		if (status != DLADM_STATUS_OK)
694 			goto done;
695 	}
696 
697 	if (class != DATALINK_CLASS_VLAN) {
698 		u64 = attrp->va_mac_addr_type;
699 		status = dladm_set_conf_field(handle, conf, FMADDRTYPE,
700 		    DLADM_TYPE_UINT64, &u64);
701 		if (status != DLADM_STATUS_OK)
702 			goto done;
703 
704 		u64 = attrp->va_vrid;
705 		status = dladm_set_conf_field(handle, conf, FVRID,
706 		    DLADM_TYPE_UINT64, &u64);
707 		if (status != DLADM_STATUS_OK)
708 			goto done;
709 
710 		u64 = attrp->va_af;
711 		status = dladm_set_conf_field(handle, conf, FVRAF,
712 		    DLADM_TYPE_UINT64, &u64);
713 		if (status != DLADM_STATUS_OK)
714 			goto done;
715 
716 		if (attrp->va_mac_len != ETHERADDRL) {
717 			u64 = attrp->va_mac_len;
718 			status = dladm_set_conf_field(handle, conf, FMADDRLEN,
719 			    DLADM_TYPE_UINT64, &u64);
720 			if (status != DLADM_STATUS_OK)
721 				goto done;
722 		}
723 
724 		if (attrp->va_mac_slot != -1) {
725 			u64 = attrp->va_mac_slot;
726 			status = dladm_set_conf_field(handle, conf,
727 			    FMADDRSLOT, DLADM_TYPE_UINT64, &u64);
728 			if (status != DLADM_STATUS_OK)
729 			goto done;
730 		}
731 
732 		if (attrp->va_mac_prefix_len !=
733 		    sizeof (dladm_vnic_def_prefix)) {
734 			u64 = attrp->va_mac_prefix_len;
735 			status = dladm_set_conf_field(handle, conf,
736 			    FMADDRPREFIXLEN, DLADM_TYPE_UINT64, &u64);
737 			if (status != DLADM_STATUS_OK)
738 				goto done;
739 		}
740 
741 		(void) dladm_vnic_macaddr2str(attrp->va_mac_addr, macstr);
742 		status = dladm_set_conf_field(handle, conf, FMACADDR,
743 		    DLADM_TYPE_STR, macstr);
744 		if (status != DLADM_STATUS_OK)
745 			goto done;
746 	}
747 
748 	if (attrp->va_hwrings) {
749 		boolean_t hwrings = attrp->va_hwrings;
750 		status = dladm_set_conf_field(handle, conf, FHWRINGS,
751 		    DLADM_TYPE_BOOLEAN, &hwrings);
752 		if (status != DLADM_STATUS_OK)
753 			goto done;
754 	}
755 
756 	if (attrp->va_vid != 0) {
757 		u64 = attrp->va_vid;
758 		status = dladm_set_conf_field(handle, conf, FVLANID,
759 		    DLADM_TYPE_UINT64, &u64);
760 		if (status != DLADM_STATUS_OK)
761 			goto done;
762 	}
763 
764 	/*
765 	 * Commit the link configuration.
766 	 */
767 	status = dladm_write_conf(handle, conf);
768 
769 done:
770 	dladm_destroy_conf(handle, conf);
771 	return (status);
772 }
773 
774 typedef struct dladm_vnic_up_arg_s {
775 	uint32_t	flags;
776 	dladm_status_t	status;
777 } dladm_vnic_up_arg_t;
778 
779 #define	DLADM_VNIC_UP_FIRST_WALK	0x1
780 #define	DLADM_VNIC_UP_SECOND_WALK	0x2
781 
782 static int
783 i_dladm_vnic_up(dladm_handle_t handle, datalink_id_t linkid, void *arg)
784 {
785 	dladm_status_t *statusp = &(((dladm_vnic_up_arg_t *)arg)->status);
786 	dladm_vnic_attr_t attr;
787 	dladm_status_t status;
788 	dladm_arg_list_t *proplist;
789 	uint32_t flags = ((dladm_vnic_up_arg_t *)arg)->flags;
790 
791 	bzero(&attr, sizeof (attr));
792 
793 	status = dladm_vnic_info(handle, linkid, &attr, DLADM_OPT_PERSIST);
794 	if (status != DLADM_STATUS_OK)
795 		goto done;
796 
797 	/*
798 	 * Create the vnics that request hardware group first
799 	 * Create the vnics that don't request hardware group in the second walk
800 	 */
801 	if ((flags == DLADM_VNIC_UP_FIRST_WALK && !attr.va_hwrings) ||
802 	    (flags == DLADM_VNIC_UP_SECOND_WALK && attr.va_hwrings))
803 			goto done;
804 
805 	/* Get all properties for this vnic */
806 	status = dladm_link_get_proplist(handle, linkid, &proplist);
807 	if (status != DLADM_STATUS_OK)
808 		goto done;
809 
810 	if (proplist != NULL) {
811 		status = dladm_link_proplist_extract(handle, proplist,
812 		    &attr.va_resource_props);
813 	}
814 
815 	status = i_dladm_vnic_create_sys(handle, &attr);
816 	if (status == DLADM_STATUS_OK) {
817 		status = dladm_up_datalink_id(handle, linkid);
818 		if (status != DLADM_STATUS_OK)
819 			(void) i_dladm_vnic_delete_sys(handle, linkid);
820 	}
821 
822 done:
823 	*statusp = status;
824 	return (DLADM_WALK_CONTINUE);
825 }
826 
827 dladm_status_t
828 dladm_vnic_up(dladm_handle_t handle, datalink_id_t linkid, uint32_t flags)
829 {
830 	dladm_vnic_up_arg_t vnic_arg;
831 	datalink_class_t class;
832 
833 	class = ((flags & DLADM_OPT_VLAN) != 0) ? DATALINK_CLASS_VLAN :
834 	    (DATALINK_CLASS_VNIC | DATALINK_CLASS_ETHERSTUB);
835 
836 	if (linkid == DATALINK_ALL_LINKID) {
837 		vnic_arg.flags = DLADM_VNIC_UP_FIRST_WALK;
838 		(void) dladm_walk_datalink_id(i_dladm_vnic_up, handle,
839 		    &vnic_arg, class, DATALINK_ANY_MEDIATYPE,
840 		    DLADM_OPT_PERSIST);
841 		vnic_arg.flags = DLADM_VNIC_UP_SECOND_WALK;
842 		(void) dladm_walk_datalink_id(i_dladm_vnic_up, handle,
843 		    &vnic_arg, class, DATALINK_ANY_MEDIATYPE,
844 		    DLADM_OPT_PERSIST);
845 		return (DLADM_STATUS_OK);
846 	} else {
847 		(void) i_dladm_vnic_up(handle, linkid, &vnic_arg);
848 		return (vnic_arg.status);
849 	}
850 }
851