xref: /titanic_41/usr/src/lib/libdladm/common/libdlvnic.c (revision 1816cb7076d3ec8a78ef9ac9f895574e13c43645)
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 <libdllink.h>
42 #include <libdlbridge.h>
43 #include <libdlvnic.h>
44 
45 /*
46  * VNIC administration library.
47  */
48 
49 /*
50  * Default random MAC address prefix (locally administered).
51  */
52 static char dladm_vnic_def_prefix[] = {0x02, 0x08, 0x20};
53 
54 static dladm_status_t	dladm_vnic_persist_conf(dladm_handle_t,
55 			    const char *name, dladm_vnic_attr_t *,
56 			    datalink_class_t);
57 static const char	*dladm_vnic_macaddr2str(const uchar_t *, char *);
58 static dladm_status_t	dladm_vnic_str2macaddr(const char *, uchar_t *);
59 
60 /*
61  * Convert a diagnostic returned by the kernel into a dladm_status_t.
62  */
63 static dladm_status_t
64 dladm_vnic_diag2status(vnic_ioc_diag_t ioc_diag)
65 {
66 	switch (ioc_diag) {
67 	case VNIC_IOC_DIAG_MACADDR_INVALID:
68 		return (DLADM_STATUS_INVALIDMACADDR);
69 	case VNIC_IOC_DIAG_MACADDRLEN_INVALID:
70 		return (DLADM_STATUS_INVALIDMACADDRLEN);
71 	case VNIC_IOC_DIAG_MACADDR_NIC:
72 		return (DLADM_STATUS_INVALIDMACADDRNIC);
73 	case VNIC_IOC_DIAG_MACADDR_INUSE:
74 		return (DLADM_STATUS_INVALIDMACADDRINUSE);
75 	case VNIC_IOC_DIAG_MACFACTORYSLOTINVALID:
76 		return (DLADM_STATUS_MACFACTORYSLOTINVALID);
77 	case VNIC_IOC_DIAG_MACFACTORYSLOTUSED:
78 		return (DLADM_STATUS_MACFACTORYSLOTUSED);
79 	case VNIC_IOC_DIAG_MACFACTORYSLOTALLUSED:
80 		return (DLADM_STATUS_MACFACTORYSLOTALLUSED);
81 	case VNIC_IOC_DIAG_MACFACTORYNOTSUP:
82 		return (DLADM_STATUS_MACFACTORYNOTSUP);
83 	case VNIC_IOC_DIAG_MACPREFIX_INVALID:
84 		return (DLADM_STATUS_INVALIDMACPREFIX);
85 	case VNIC_IOC_DIAG_MACPREFIXLEN_INVALID:
86 		return (DLADM_STATUS_INVALIDMACPREFIXLEN);
87 	case VNIC_IOC_DIAG_MACMARGIN_INVALID:
88 		return (DLADM_STATUS_INVALID_MACMARGIN);
89 	case VNIC_IOC_DIAG_NO_HWRINGS:
90 		return (DLADM_STATUS_NO_HWRINGS);
91 	}
92 	return (DLADM_STATUS_OK);
93 }
94 
95 /*
96  * Send a create command to the VNIC driver.
97  */
98 dladm_status_t
99 i_dladm_vnic_create_sys(dladm_handle_t handle, dladm_vnic_attr_t *attr)
100 {
101 	int rc;
102 	vnic_ioc_create_t ioc;
103 	dladm_status_t status = DLADM_STATUS_OK;
104 
105 	bzero(&ioc, sizeof (ioc));
106 	ioc.vc_vnic_id = attr->va_vnic_id;
107 	ioc.vc_link_id = attr->va_link_id;
108 	ioc.vc_mac_addr_type = attr->va_mac_addr_type;
109 	ioc.vc_mac_len = attr->va_mac_len;
110 	ioc.vc_mac_slot = attr->va_mac_slot;
111 	ioc.vc_mac_prefix_len = attr->va_mac_prefix_len;
112 	ioc.vc_vid = attr->va_vid;
113 	ioc.vc_flags = attr->va_force ? VNIC_IOC_CREATE_FORCE : 0;
114 	ioc.vc_flags |= attr->va_hwrings ? VNIC_IOC_CREATE_REQ_HWRINGS : 0;
115 
116 	if (attr->va_mac_len > 0 || ioc.vc_mac_prefix_len > 0)
117 		bcopy(attr->va_mac_addr, ioc.vc_mac_addr, MAXMACADDRLEN);
118 	bcopy(&attr->va_resource_props, &ioc.vc_resource_props,
119 	    sizeof (mac_resource_props_t));
120 	if (attr->va_link_id == DATALINK_INVALID_LINKID)
121 		ioc.vc_flags |= VNIC_IOC_CREATE_ANCHOR;
122 
123 	rc = ioctl(dladm_dld_fd(handle), VNIC_IOC_CREATE, &ioc);
124 	if (rc < 0)
125 		status = dladm_errno2status(errno);
126 
127 	if (status != DLADM_STATUS_OK) {
128 		if (ioc.vc_diag != VNIC_IOC_DIAG_NONE)
129 			status = dladm_vnic_diag2status(ioc.vc_diag);
130 	}
131 	if (status != DLADM_STATUS_OK)
132 		return (status);
133 
134 	attr->va_mac_addr_type = ioc.vc_mac_addr_type;
135 	switch (ioc.vc_mac_addr_type) {
136 	case VNIC_MAC_ADDR_TYPE_FACTORY:
137 		attr->va_mac_slot = ioc.vc_mac_slot;
138 		break;
139 	case VNIC_MAC_ADDR_TYPE_RANDOM:
140 		bcopy(ioc.vc_mac_addr, attr->va_mac_addr, MAXMACADDRLEN);
141 		attr->va_mac_len = ioc.vc_mac_len;
142 		break;
143 	}
144 	return (status);
145 }
146 
147 /*
148  * Get the configuration information of the given VNIC.
149  */
150 static dladm_status_t
151 i_dladm_vnic_info_active(dladm_handle_t handle, datalink_id_t linkid,
152     dladm_vnic_attr_t *attrp)
153 {
154 	vnic_ioc_info_t ioc;
155 	vnic_info_t *vnic;
156 	int rc;
157 	dladm_status_t status = DLADM_STATUS_OK;
158 
159 	bzero(&ioc, sizeof (ioc));
160 	vnic = &ioc.vi_info;
161 	vnic->vn_vnic_id = linkid;
162 
163 	rc = ioctl(dladm_dld_fd(handle), VNIC_IOC_INFO, &ioc);
164 	if (rc != 0) {
165 		status = dladm_errno2status(errno);
166 		goto bail;
167 	}
168 
169 	attrp->va_vnic_id = vnic->vn_vnic_id;
170 	attrp->va_link_id = vnic->vn_link_id;
171 	attrp->va_mac_addr_type = vnic->vn_mac_addr_type;
172 	bcopy(vnic->vn_mac_addr, attrp->va_mac_addr, MAXMACADDRLEN);
173 	attrp->va_mac_len = vnic->vn_mac_len;
174 	attrp->va_mac_slot = vnic->vn_mac_slot;
175 	attrp->va_mac_prefix_len = vnic->vn_mac_prefix_len;
176 	attrp->va_vid = vnic->vn_vid;
177 	attrp->va_force = vnic->vn_force;
178 
179 bail:
180 	return (status);
181 }
182 
183 static dladm_status_t
184 i_dladm_vnic_info_persist(dladm_handle_t handle, datalink_id_t linkid,
185     dladm_vnic_attr_t *attrp)
186 {
187 	dladm_conf_t conf;
188 	dladm_status_t status;
189 	char macstr[ETHERADDRL * 3];
190 	uint64_t u64;
191 	datalink_class_t class;
192 
193 	attrp->va_vnic_id = linkid;
194 	if ((status = dladm_read_conf(handle, linkid, &conf)) !=
195 	    DLADM_STATUS_OK)
196 		return (status);
197 
198 	status = dladm_get_conf_field(handle, conf, FLINKOVER, &u64,
199 	    sizeof (u64));
200 	attrp->va_link_id = ((status == DLADM_STATUS_OK) ?
201 	    (datalink_id_t)u64 : DATALINK_INVALID_LINKID);
202 
203 	status = dladm_get_conf_field(handle, conf, FHWRINGS,
204 	    &attrp->va_hwrings, sizeof (boolean_t));
205 
206 	if (status != DLADM_STATUS_OK && status != DLADM_STATUS_NOTFOUND)
207 		goto done;
208 	if (status == DLADM_STATUS_NOTFOUND)
209 		attrp->va_hwrings = B_FALSE;
210 
211 	if ((status = dladm_datalink_id2info(handle, linkid, NULL, &class,
212 	    NULL, NULL, 0)) != DLADM_STATUS_OK)
213 		goto done;
214 
215 	if (class == DATALINK_CLASS_VLAN) {
216 		if (attrp->va_link_id == DATALINK_INVALID_LINKID) {
217 			status = DLADM_STATUS_BADARG;
218 			goto done;
219 		}
220 		attrp->va_mac_addr_type = VNIC_MAC_ADDR_TYPE_PRIMARY;
221 		attrp->va_mac_len = 0;
222 	} else {
223 		status = dladm_get_conf_field(handle, conf, FMADDRTYPE, &u64,
224 		    sizeof (u64));
225 		if (status != DLADM_STATUS_OK)
226 			goto done;
227 
228 		attrp->va_mac_addr_type = (vnic_mac_addr_type_t)u64;
229 
230 		status = dladm_get_conf_field(handle, conf, FMADDRLEN, &u64,
231 		    sizeof (u64));
232 		attrp->va_mac_len = ((status == DLADM_STATUS_OK) ?
233 		    (uint_t)u64 : ETHERADDRL);
234 
235 		status = dladm_get_conf_field(handle, conf, FMADDRSLOT, &u64,
236 		    sizeof (u64));
237 		attrp->va_mac_slot = ((status == DLADM_STATUS_OK) ?
238 		    (int)u64 : -1);
239 
240 		status = dladm_get_conf_field(handle, conf, FMADDRPREFIXLEN,
241 		    &u64, sizeof (u64));
242 		attrp->va_mac_prefix_len = ((status == DLADM_STATUS_OK) ?
243 		    (uint_t)u64 : sizeof (dladm_vnic_def_prefix));
244 
245 		status = dladm_get_conf_field(handle, conf, FMACADDR, macstr,
246 		    sizeof (macstr));
247 		if (status != DLADM_STATUS_OK)
248 			goto done;
249 
250 		status = dladm_vnic_str2macaddr(macstr, attrp->va_mac_addr);
251 		if (status != DLADM_STATUS_OK)
252 			goto done;
253 	}
254 
255 	status = dladm_get_conf_field(handle, conf, FVLANID, &u64,
256 	    sizeof (u64));
257 	attrp->va_vid = ((status == DLADM_STATUS_OK) ?  (uint16_t)u64 : 0);
258 
259 
260 	status = DLADM_STATUS_OK;
261 done:
262 	dladm_destroy_conf(handle, conf);
263 	return (status);
264 }
265 
266 dladm_status_t
267 dladm_vnic_info(dladm_handle_t handle, datalink_id_t linkid,
268     dladm_vnic_attr_t *attrp, uint32_t flags)
269 {
270 	if (flags == DLADM_OPT_ACTIVE)
271 		return (i_dladm_vnic_info_active(handle, linkid, attrp));
272 	else if (flags == DLADM_OPT_PERSIST)
273 		return (i_dladm_vnic_info_persist(handle, linkid, attrp));
274 	else
275 		return (DLADM_STATUS_BADARG);
276 }
277 
278 /*
279  * Remove a VNIC from the kernel.
280  */
281 dladm_status_t
282 i_dladm_vnic_delete_sys(dladm_handle_t handle, datalink_id_t linkid)
283 {
284 	vnic_ioc_delete_t ioc;
285 	dladm_status_t status = DLADM_STATUS_OK;
286 	int rc;
287 
288 	ioc.vd_vnic_id = linkid;
289 
290 	rc = ioctl(dladm_dld_fd(handle), VNIC_IOC_DELETE, &ioc);
291 	if (rc < 0)
292 		status = dladm_errno2status(errno);
293 
294 	return (status);
295 }
296 
297 /*
298  * Convert between MAC address types and their string representations.
299  */
300 
301 typedef struct dladm_vnic_addr_type_s {
302 	const char		*va_str;
303 	vnic_mac_addr_type_t	va_type;
304 } dladm_vnic_addr_type_t;
305 
306 static dladm_vnic_addr_type_t addr_types[] = {
307 	{"fixed", VNIC_MAC_ADDR_TYPE_FIXED},
308 	{"random", VNIC_MAC_ADDR_TYPE_RANDOM},
309 	{"factory", VNIC_MAC_ADDR_TYPE_FACTORY},
310 	{"auto", VNIC_MAC_ADDR_TYPE_AUTO},
311 	{"fixed", VNIC_MAC_ADDR_TYPE_PRIMARY}
312 };
313 
314 #define	NADDR_TYPES (sizeof (addr_types) / sizeof (dladm_vnic_addr_type_t))
315 
316 static const char *
317 dladm_vnic_macaddrtype2str(vnic_mac_addr_type_t type)
318 {
319 	int i;
320 
321 	for (i = 0; i < NADDR_TYPES; i++) {
322 		if (type == addr_types[i].va_type)
323 			return (addr_types[i].va_str);
324 	}
325 	return (NULL);
326 }
327 
328 dladm_status_t
329 dladm_vnic_str2macaddrtype(const char *str, vnic_mac_addr_type_t *val)
330 {
331 	int i;
332 	dladm_vnic_addr_type_t *type;
333 
334 	for (i = 0; i < NADDR_TYPES; i++) {
335 		type = &addr_types[i];
336 		if (strncmp(str, type->va_str, strlen(type->va_str)) == 0) {
337 			*val = type->va_type;
338 			return (DLADM_STATUS_OK);
339 		}
340 	}
341 	return (DLADM_STATUS_BADARG);
342 }
343 
344 /*
345  * Create a new VNIC / VLAN. Update the configuration file and bring it up.
346  */
347 dladm_status_t
348 dladm_vnic_create(dladm_handle_t handle, const char *vnic, datalink_id_t linkid,
349     vnic_mac_addr_type_t mac_addr_type, uchar_t *mac_addr, int mac_len,
350     int *mac_slot, uint_t mac_prefix_len, uint16_t vid,
351     datalink_id_t *vnic_id_out, dladm_arg_list_t *proplist, uint32_t flags)
352 {
353 	dladm_vnic_attr_t attr;
354 	datalink_id_t vnic_id;
355 	datalink_class_t class;
356 	uint32_t media = DL_ETHER;
357 	char name[MAXLINKNAMELEN];
358 	uchar_t tmp_addr[MAXMACADDRLEN];
359 	dladm_status_t status;
360 	boolean_t is_vlan;
361 	boolean_t is_etherstub;
362 	int i;
363 	boolean_t vnic_created = B_FALSE;
364 	boolean_t conf_set = B_FALSE;
365 
366 	/*
367 	 * Sanity test arguments.
368 	 */
369 	if ((flags & DLADM_OPT_ACTIVE) == 0)
370 		return (DLADM_STATUS_NOTSUP);
371 
372 	is_vlan = ((flags & DLADM_OPT_VLAN) != 0);
373 	if (is_vlan && ((vid < 1 || vid > 4094)))
374 		return (DLADM_STATUS_VIDINVAL);
375 
376 	is_etherstub = (linkid == DATALINK_INVALID_LINKID);
377 
378 	if (mac_len > MAXMACADDRLEN)
379 		return (DLADM_STATUS_INVALIDMACADDRLEN);
380 
381 	if (!dladm_vnic_macaddrtype2str(mac_addr_type))
382 		return (DLADM_STATUS_INVALIDMACADDRTYPE);
383 
384 	/*
385 	 * If a random address might be generated, but no prefix
386 	 * was specified by the caller, use the default MAC address
387 	 * prefix.
388 	 */
389 	if ((mac_addr_type == VNIC_MAC_ADDR_TYPE_RANDOM ||
390 	    mac_addr_type == VNIC_MAC_ADDR_TYPE_AUTO) &&
391 	    mac_prefix_len == 0) {
392 		mac_prefix_len = sizeof (dladm_vnic_def_prefix);
393 		mac_addr = tmp_addr;
394 		bcopy(dladm_vnic_def_prefix, mac_addr, mac_prefix_len);
395 	}
396 
397 	if ((flags & DLADM_OPT_ANCHOR) == 0) {
398 		if ((status = dladm_datalink_id2info(handle, linkid, NULL,
399 		    &class, &media, NULL, 0)) != DLADM_STATUS_OK)
400 			return (status);
401 
402 		if (class == DATALINK_CLASS_VNIC ||
403 		    class == DATALINK_CLASS_VLAN)
404 			return (DLADM_STATUS_BADARG);
405 	} else {
406 		/* it's an anchor VNIC */
407 		if (linkid != DATALINK_INVALID_LINKID || vid != 0)
408 			return (DLADM_STATUS_BADARG);
409 	}
410 
411 	if (vnic == NULL) {
412 		flags |= DLADM_OPT_PREFIX;
413 		(void) strlcpy(name, "vnic", sizeof (name));
414 	} else {
415 		(void) strlcpy(name, vnic, sizeof (name));
416 	}
417 
418 	class = is_vlan ? DATALINK_CLASS_VLAN :
419 	    (is_etherstub ? DATALINK_CLASS_ETHERSTUB : DATALINK_CLASS_VNIC);
420 	if ((status = dladm_create_datalink_id(handle, name, class,
421 	    media, flags, &vnic_id)) != DLADM_STATUS_OK)
422 		return (status);
423 
424 	if ((flags & DLADM_OPT_PREFIX) != 0) {
425 		(void) snprintf(name + 4, sizeof (name), "%llu", vnic_id);
426 		flags &= ~DLADM_OPT_PREFIX;
427 	}
428 
429 	bzero(&attr, sizeof (attr));
430 
431 	/* Extract resource_ctl and cpu_list from proplist */
432 	if (proplist != NULL) {
433 		status = dladm_link_proplist_extract(handle, proplist,
434 		    &attr.va_resource_props);
435 		if (status != DLADM_STATUS_OK)
436 			goto done;
437 	}
438 
439 	attr.va_vnic_id = vnic_id;
440 	attr.va_link_id = linkid;
441 	attr.va_mac_addr_type = mac_addr_type;
442 	attr.va_mac_len = mac_len;
443 	if (mac_slot != NULL)
444 		attr.va_mac_slot = *mac_slot;
445 	if (mac_len > 0)
446 		bcopy(mac_addr, attr.va_mac_addr, mac_len);
447 	else if (mac_prefix_len > 0)
448 		bcopy(mac_addr, attr.va_mac_addr, mac_prefix_len);
449 	attr.va_mac_prefix_len = mac_prefix_len;
450 	attr.va_vid = vid;
451 	attr.va_force = (flags & DLADM_OPT_FORCE) != 0;
452 	attr.va_hwrings = (flags & DLADM_OPT_HWRINGS) != 0;
453 
454 	status = i_dladm_vnic_create_sys(handle, &attr);
455 	if (status != DLADM_STATUS_OK)
456 		goto done;
457 	vnic_created = B_TRUE;
458 
459 	/* Save vnic configuration and its properties */
460 	if (!(flags & DLADM_OPT_PERSIST))
461 		goto done;
462 
463 	status = dladm_vnic_persist_conf(handle, name, &attr, class);
464 	if (status != DLADM_STATUS_OK)
465 		goto done;
466 	conf_set = B_TRUE;
467 
468 	if (proplist != NULL) {
469 		for (i = 0; i < proplist->al_count; i++) {
470 			dladm_arg_info_t	*aip = &proplist->al_info[i];
471 
472 			status = dladm_set_linkprop(handle, vnic_id,
473 			    aip->ai_name, aip->ai_val, aip->ai_count,
474 			    DLADM_OPT_PERSIST);
475 			if (status != DLADM_STATUS_OK)
476 				break;
477 		}
478 	}
479 
480 done:
481 	if (status != DLADM_STATUS_OK) {
482 		if (conf_set)
483 			(void) dladm_remove_conf(handle, vnic_id);
484 		if (vnic_created)
485 			(void) i_dladm_vnic_delete_sys(handle, vnic_id);
486 		(void) dladm_destroy_datalink_id(handle, vnic_id, flags);
487 	} else {
488 		if (vnic_id_out != NULL)
489 			*vnic_id_out = vnic_id;
490 		if (mac_slot != NULL)
491 			*mac_slot = attr.va_mac_slot;
492 	}
493 
494 	if (is_vlan) {
495 		dladm_status_t stat2;
496 
497 		stat2 = dladm_bridge_refresh(handle, linkid);
498 		if (status == DLADM_STATUS_OK && stat2 != DLADM_STATUS_OK)
499 			status = stat2;
500 	}
501 	return (status);
502 }
503 
504 /*
505  * Delete a VNIC / VLAN.
506  */
507 dladm_status_t
508 dladm_vnic_delete(dladm_handle_t handle, datalink_id_t linkid, uint32_t flags)
509 {
510 	dladm_status_t status;
511 	datalink_class_t class;
512 	dladm_vnic_attr_t attr;
513 
514 	if (flags == 0)
515 		return (DLADM_STATUS_BADARG);
516 
517 	if ((dladm_datalink_id2info(handle, linkid, NULL, &class, NULL, NULL, 0)
518 	    != DLADM_STATUS_OK))
519 		return (DLADM_STATUS_BADARG);
520 
521 	if ((flags & DLADM_OPT_VLAN) != 0) {
522 		if (class != DATALINK_CLASS_VLAN)
523 			return (DLADM_STATUS_BADARG);
524 	} else {
525 		if (class != DATALINK_CLASS_VNIC &&
526 		    class != DATALINK_CLASS_ETHERSTUB)
527 			return (DLADM_STATUS_BADARG);
528 	}
529 
530 	if ((flags & DLADM_OPT_ACTIVE) != 0) {
531 		status = dladm_vnic_info(handle, linkid, &attr,
532 		    DLADM_OPT_ACTIVE);
533 		if (status != DLADM_STATUS_OK)
534 			return (status);
535 		status = i_dladm_vnic_delete_sys(handle, linkid);
536 		if (status == DLADM_STATUS_OK) {
537 			(void) dladm_set_linkprop(handle, linkid, NULL, NULL, 0,
538 			    DLADM_OPT_ACTIVE);
539 			(void) dladm_destroy_datalink_id(handle, linkid,
540 			    DLADM_OPT_ACTIVE);
541 		} else if (status != DLADM_STATUS_NOTFOUND ||
542 		    !(flags & DLADM_OPT_PERSIST)) {
543 			return (status);
544 		}
545 	}
546 	if ((flags & DLADM_OPT_PERSIST) != 0) {
547 		(void) dladm_destroy_datalink_id(handle, linkid,
548 		    DLADM_OPT_PERSIST);
549 		(void) dladm_remove_conf(handle, linkid);
550 	}
551 	return (dladm_bridge_refresh(handle, linkid));
552 }
553 
554 static const char *
555 dladm_vnic_macaddr2str(const uchar_t *mac, char *buf)
556 {
557 	static char unknown_mac[] = {0, 0, 0, 0, 0, 0};
558 
559 	if (buf == NULL)
560 		return (NULL);
561 
562 	if (bcmp(unknown_mac, mac, ETHERADDRL) == 0)
563 		(void) strlcpy(buf, "unknown", DLADM_STRSIZE);
564 	else
565 		return (_link_ntoa(mac, buf, ETHERADDRL, IFT_OTHER));
566 
567 	return (buf);
568 }
569 
570 static dladm_status_t
571 dladm_vnic_str2macaddr(const char *str, uchar_t *buf)
572 {
573 	int len = 0;
574 	uchar_t *b = _link_aton(str, &len);
575 
576 	if (b == NULL || len >= MAXMACADDRLEN)
577 		return (DLADM_STATUS_BADARG);
578 
579 	bcopy(b, buf, len);
580 	free(b);
581 	return (DLADM_STATUS_OK);
582 }
583 
584 
585 static dladm_status_t
586 dladm_vnic_persist_conf(dladm_handle_t handle, const char *name,
587     dladm_vnic_attr_t *attrp, datalink_class_t class)
588 {
589 	dladm_conf_t conf = DLADM_INVALID_CONF;
590 	dladm_status_t status;
591 	char macstr[ETHERADDRL * 3];
592 	uint64_t u64;
593 
594 	if ((status = dladm_create_conf(handle, name, attrp->va_vnic_id,
595 	    class, DL_ETHER, &conf)) != DLADM_STATUS_OK)
596 		return (status);
597 
598 	if (attrp->va_link_id != DATALINK_INVALID_LINKID) {
599 		u64 = attrp->va_link_id;
600 		status = dladm_set_conf_field(handle, conf, FLINKOVER,
601 		    DLADM_TYPE_UINT64, &u64);
602 		if (status != DLADM_STATUS_OK)
603 			goto done;
604 	}
605 
606 	if (class != DATALINK_CLASS_VLAN) {
607 		u64 = attrp->va_mac_addr_type;
608 		status = dladm_set_conf_field(handle, conf, FMADDRTYPE,
609 		    DLADM_TYPE_UINT64, &u64);
610 		if (status != DLADM_STATUS_OK)
611 			goto done;
612 
613 		if (attrp->va_mac_len != ETHERADDRL) {
614 			u64 = attrp->va_mac_len;
615 			status = dladm_set_conf_field(handle, conf, FMADDRLEN,
616 			    DLADM_TYPE_UINT64, &u64);
617 			if (status != DLADM_STATUS_OK)
618 				goto done;
619 		}
620 	}
621 
622 	if (attrp->va_hwrings) {
623 		boolean_t hwrings = attrp->va_hwrings;
624 		status = dladm_set_conf_field(handle, conf, FHWRINGS,
625 		    DLADM_TYPE_BOOLEAN, &hwrings);
626 		if (status != DLADM_STATUS_OK)
627 			goto done;
628 	}
629 
630 	if (class != DATALINK_CLASS_VLAN) {
631 		if (attrp->va_mac_slot != -1) {
632 			u64 = attrp->va_mac_slot;
633 			status = dladm_set_conf_field(handle, conf, FMADDRSLOT,
634 			    DLADM_TYPE_UINT64, &u64);
635 			if (status != DLADM_STATUS_OK)
636 			goto done;
637 		}
638 
639 		if (attrp->va_mac_prefix_len !=
640 		    sizeof (dladm_vnic_def_prefix)) {
641 			u64 = attrp->va_mac_prefix_len;
642 			status = dladm_set_conf_field(handle, conf,
643 			    FMADDRPREFIXLEN, DLADM_TYPE_UINT64, &u64);
644 			if (status != DLADM_STATUS_OK)
645 				goto done;
646 		}
647 
648 		(void) dladm_vnic_macaddr2str(attrp->va_mac_addr, macstr);
649 		status = dladm_set_conf_field(handle, conf, FMACADDR,
650 		    DLADM_TYPE_STR, macstr);
651 		if (status != DLADM_STATUS_OK)
652 			goto done;
653 	}
654 
655 	if (attrp->va_vid != 0) {
656 		u64 = attrp->va_vid;
657 		status = dladm_set_conf_field(handle, conf, FVLANID,
658 		    DLADM_TYPE_UINT64, &u64);
659 		if (status != DLADM_STATUS_OK)
660 			goto done;
661 	}
662 
663 	/*
664 	 * Commit the link configuration.
665 	 */
666 	status = dladm_write_conf(handle, conf);
667 
668 done:
669 	dladm_destroy_conf(handle, conf);
670 	return (status);
671 }
672 
673 typedef struct dladm_vnic_up_arg_s {
674 	uint32_t	flags;
675 	dladm_status_t	status;
676 } dladm_vnic_up_arg_t;
677 
678 #define	DLADM_VNIC_UP_FIRST_WALK	0x1
679 #define	DLADM_VNIC_UP_SECOND_WALK	0x2
680 
681 static int
682 i_dladm_vnic_up(dladm_handle_t handle, datalink_id_t linkid, void *arg)
683 {
684 	dladm_status_t *statusp = &(((dladm_vnic_up_arg_t *)arg)->status);
685 	dladm_vnic_attr_t attr;
686 	dladm_status_t status;
687 	dladm_arg_list_t *proplist;
688 	uint32_t flags = ((dladm_vnic_up_arg_t *)arg)->flags;
689 
690 	bzero(&attr, sizeof (attr));
691 
692 	status = dladm_vnic_info(handle, linkid, &attr, DLADM_OPT_PERSIST);
693 	if (status != DLADM_STATUS_OK)
694 		goto done;
695 
696 	/*
697 	 * Create the vnics that request hardware group first
698 	 * Create the vnics that don't request hardware group in the second walk
699 	 */
700 	if ((flags == DLADM_VNIC_UP_FIRST_WALK && !attr.va_hwrings) ||
701 	    (flags == DLADM_VNIC_UP_SECOND_WALK && attr.va_hwrings))
702 			goto done;
703 
704 	/* Get all properties for this vnic */
705 	status = dladm_link_get_proplist(handle, linkid, &proplist);
706 	if (status != DLADM_STATUS_OK)
707 		goto done;
708 
709 	if (proplist != NULL) {
710 		status = dladm_link_proplist_extract(handle, proplist,
711 		    &attr.va_resource_props);
712 	}
713 
714 	status = i_dladm_vnic_create_sys(handle, &attr);
715 	if (status == DLADM_STATUS_OK) {
716 		status = dladm_up_datalink_id(handle, linkid);
717 		if (status != DLADM_STATUS_OK)
718 			(void) i_dladm_vnic_delete_sys(handle, linkid);
719 	}
720 
721 done:
722 	*statusp = status;
723 	return (DLADM_WALK_CONTINUE);
724 }
725 
726 dladm_status_t
727 dladm_vnic_up(dladm_handle_t handle, datalink_id_t linkid, uint32_t flags)
728 {
729 	dladm_vnic_up_arg_t vnic_arg;
730 	datalink_class_t class;
731 
732 	class = ((flags & DLADM_OPT_VLAN) != 0) ? DATALINK_CLASS_VLAN :
733 	    (DATALINK_CLASS_VNIC | DATALINK_CLASS_ETHERSTUB);
734 
735 	if (linkid == DATALINK_ALL_LINKID) {
736 		vnic_arg.flags = DLADM_VNIC_UP_FIRST_WALK;
737 		(void) dladm_walk_datalink_id(i_dladm_vnic_up, handle,
738 		    &vnic_arg, class, DATALINK_ANY_MEDIATYPE,
739 		    DLADM_OPT_PERSIST);
740 		vnic_arg.flags = DLADM_VNIC_UP_SECOND_WALK;
741 		(void) dladm_walk_datalink_id(i_dladm_vnic_up, handle,
742 		    &vnic_arg, class, DATALINK_ANY_MEDIATYPE,
743 		    DLADM_OPT_PERSIST);
744 		return (DLADM_STATUS_OK);
745 	} else {
746 		(void) i_dladm_vnic_up(handle, linkid, &vnic_arg);
747 		return (vnic_arg.status);
748 	}
749 }
750