xref: /illumos-gate/usr/src/lib/cfgadm_plugins/sata/common/cfga_sata.c (revision 2983dda76a6d296fdb560c88114fe41caad1b84f)
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 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <sys/param.h>
28 #include <sys/stat.h>
29 #include <errno.h>
30 #include <string.h>
31 #include <dirent.h>
32 #include "cfga_sata.h"
33 
34 /*
35  * This file contains the entry points to the plug-in as defined in the
36  * config_admin(3X) man page.
37  */
38 
39 /*
40  * Set the version number for the cfgadm library's use.
41  */
42 int cfga_version = CFGA_HSL_V2;
43 
44 enum {
45 	HELP_HEADER = 1,
46 	HELP_CONFIG,
47 	HELP_RESET_PORT,
48 	HELP_RESET_DEVICE,
49 	HELP_RESET_ALL,
50 	HELP_PORT_DEACTIVATE,
51 	HELP_PORT_ACTIVATE,
52 	HELP_PORT_SELF_TEST,
53 	HELP_CNTRL_SELF_TEST,
54 	HELP_UNKNOWN
55 };
56 
57 /* SATA specific help messages */
58 static char *sata_help[] = {
59 	NULL,
60 	"SATA specific commands:\n",
61 	" cfgadm -c [configure|unconfigure|disconnect|connect] ap_id "
62 	    "[ap_id...]\n",
63 	" cfgadm -x sata_reset_port ap_id  [ap_id...]\n",
64 	" cfgadm -x sata_reset_device ap_id [ap_id...]\n",
65 	" cfgadm -x sata_reset_all ap_id\n",
66 	" cfgadm -x sata_port_deactivate ap_id [ap_id...]\n",
67 	" cfgadm -x sata_port_activate ap_id [ap_id...]\n",
68 	" cfgadm -x sata_port_self_test ap_id [ap_id...]\n",
69 	" cfgadm -t ap_id\n",
70 	"\tunknown command or option:\n",
71 	NULL
72 };	/* End help messages */
73 
74 
75 /*
76  * Messages.
77  */
78 static msgcvt_t sata_msgs[] = {
79 	/* CFGA_SATA_OK */
80 	{ CVT, CFGA_OK, "" },
81 
82 	/* CFGA_SATA_NACK */
83 	{ CVT, CFGA_NACK, "" },
84 
85 	/* CFGA_SATA_DEVICE_UNCONFIGURED */
86 	{ CVT, CFGA_OK, "Device unconfigured prior to disconnect" },
87 
88 	/* CFGA_SATA_UNKNOWN / CFGA_LIB_ERROR -> "Library error" */
89 	{ CVT, CFGA_LIB_ERROR, "Unknown message; internal error" },
90 
91 	/* CFGA_SATA_INTERNAL_ERROR / CFGA_LIB_ERROR -> "Library error" */
92 	{ CVT, CFGA_LIB_ERROR, "Internal error" },
93 
94 	/* CFGA_SATA_DATA_ERROR / CFGA_DATA_ERROR -> "Data error" */
95 	{ CVT, CFGA_DATA_ERROR, "cfgadm data error" },
96 
97 	/* CFGA_SATA_OPTIONS / CFGA_ERROR -> "Hardware specific failure" */
98 	{ CVT, CFGA_ERROR, "Hardware specific option not supported" },
99 
100 	/* CFGA_SATA_HWOPNOTSUPP / CFGA_ERROR -> "Hardware specific failure" */
101 	{ CVT, CFGA_ERROR, "Hardware specific operation not supported" },
102 
103 	/*
104 	 * CFGA_SATA_DYNAMIC_AP /
105 	 * CFGA_LIB_ERROR -> "Configuration operation invalid"
106 	 */
107 	{ CVT, CFGA_INVAL, "Cannot identify attached device" },
108 
109 	/* CFGA_SATA_AP / CFGA_APID_NOEXIST -> "Attachment point not found" */
110 	{ CVT, CFGA_APID_NOEXIST, "" },
111 
112 	/* CFGA_SATA_PORT / CFGA_LIB_ERROR -> "Library error" */
113 	{ CVT, CFGA_LIB_ERROR, "Cannot determine sata port number for " },
114 
115 	/* CFGA_SATA_DEVCTL / CFGA_LIB_ERROR -> "Library error" */
116 	{ CVT, CFGA_LIB_ERROR, "Internal error: "
117 		"Cannot allocate devctl handle " },
118 
119 	/*
120 	 * CFGA_SATA_DEV_CONFIGURE /
121 	 * CFGA_ERROR -> "Hardware specific failure"
122 	 */
123 	{ CVT, CFGA_ERROR, "Failed to config device at " },
124 
125 	/*
126 	 * CFGA_SATA_DEV_UNCONFIGURE /
127 	 * CFGA_ERROR -> "Hardware specific failure"
128 	 */
129 	{ CVT, CFGA_ERROR, "Failed to unconfig device at " },
130 
131 	/*
132 	 * CFGA_SATA_DISCONNECTED
133 	 * CFGA_INVAL -> "Configuration operation invalid"
134 	 */
135 	{ CVT, CFGA_INVAL, "Port already disconnected " },
136 
137 	/*
138 	 * CFGA_SATA_NOT_CONNECTED
139 	 * CFGA_INVAL -> "Configuration operation invalid"
140 	 */
141 	{ CVT, CFGA_INVAL, "No device connected to " },
142 
143 	/*
144 	 * CFGA_SATA_NOT_CONFIGURED /
145 	 * CFGA_INVAL -> "Configuration operation invalid"
146 	 */
147 	{ CVT, CFGA_INVAL, "No device configured at " },
148 
149 	/*
150 	 * CFGA_SATA_ALREADY_CONNECTED /
151 	 * CFGA_INVAL -> "Configuration operation invalid"
152 	 */
153 	{ CVT, CFGA_INVAL, "Device already connected to " },
154 
155 	/*
156 	 * CFGA_SATA_ALREADY_CONFIGURED /
157 	 * CFGA_INVAL -> "Configuration operation invalid"
158 	 */
159 	{ CVT, CFGA_INVAL, "Device already configured at " },
160 
161 	/*
162 	 * CFGA_SATA_INVALID_DEVNAME /
163 	 * CFGA_INVAL -> "Configuration operation invalid"
164 	 */
165 	{ CVT, CFGA_INVAL, "Cannot specify device name" },
166 
167 	/* CFGA_SATA_OPEN / CFGA_LIB_ERROR -> "Library error" */
168 	{ CVT, CFGA_LIB_ERROR, "Cannot open " },
169 
170 	/* CFGA_SATA_IOCTL / CFGA_ERROR -> "Hardware specific failure"  */
171 	{ CVT, CFGA_ERROR, "Driver ioctl failed " },
172 
173 	/*
174 	 * CFGA_SATA_BUSY /
175 	 * CFGA_SYSTEM_BUSY -> "System is busy, try again"
176 	 */
177 	{ CVT, CFGA_SYSTEM_BUSY, "" },
178 
179 	/* CFGA_SATA_ALLOC_FAIL / CFGA_LIB_ERROR -> "Library error" */
180 	{ CVT, CFGA_LIB_ERROR, "Memory allocation failure" },
181 
182 	/*
183 	 * CFGA_SATA_OPNOTSUPP /
184 	 * CFGA_OPNOTSUPP -> "Configuration operation not supported"
185 	 */
186 	{ CVT, CFGA_OPNOTSUPP, "Operation not supported" },
187 
188 	/* CFGA_SATA_DEVLINK / CFGA_LIB_ERROR -> "Library error" */
189 	{ CVT, CFGA_LIB_ERROR, "Could not find /dev/cfg link for " },
190 
191 	/* CFGA_SATA_STATE / CFGA_LIB_ERROR -> "Library error" */
192 	{ CVT, CFGA_LIB_ERROR, "Internal error: Unrecognized ap state" },
193 
194 	/* CFGA_SATA_PRIV / CFGA_PRIV -> "Insufficient privileges" */
195 	{ CVT, CFGA_PRIV, "" },
196 
197 	/* CFGA_SATA_NVLIST / CFGA_ERROR -> "Hardware specific failure" */
198 	{ CVT, CFGA_ERROR, "Internal error (nvlist)" },
199 
200 	/* CFGA_SATA_ZEROLEN / CFGA_ERROR -> "Hardware specific failure" */
201 	{ CVT, CFGA_ERROR, "Internal error (zerolength string)" },
202 
203 	/* CFGA_SATA_RCM_HANDLE / CFGA_ERROR -> "Hardware specific failure" */
204 	{ CVT, CFGA_ERROR, "cannot get RCM handle"},
205 
206 	/*
207 	 * CFGA_SATA_RCM_ONLINE /
208 	 * CFGA_SYSTEM_BUSY -> "System is busy, try again"
209 	 */
210 	{ CVT, CFGA_SYSTEM_BUSY, "failed to online: "},
211 
212 	/*
213 	 * CFGA_SATA_RCM_OFFLINE /
214 	 * CFGA_SYSTEM_BUSY -> "System is busy, try again"
215 	 */
216 	{ CVT, CFGA_SYSTEM_BUSY, "failed to offline: "},
217 
218 	/* CFGA_SATA_RCM_INFO / CFGA_ERROR -> "Hardware specific failure" */
219 	{ CVT, CFGA_ERROR, "failed to query: "}
220 
221 };	/* End error messages */
222 
223 static cfga_sata_ret_t
224 verify_params(const char *ap_id, const char *options, char **errstring);
225 
226 
227 static cfga_sata_ret_t
228 setup_for_devctl_cmd(const char *ap_id, devctl_hdl_t *devctl_hdl,
229     nvlist_t **user_nvlistp, uint_t oflag);
230 
231 static cfga_sata_ret_t
232 port_state(devctl_hdl_t hdl, nvlist_t *list,
233     ap_rstate_t *rstate, ap_ostate_t *ostate);
234 
235 static cfga_sata_ret_t
236 do_control_ioctl(const char *ap_id, sata_cfga_apctl_t subcommand, uint_t arg,
237     void **descrp, size_t *sizep);
238 
239 static void
240 cleanup_after_devctl_cmd(devctl_hdl_t devctl_hdl, nvlist_t *user_nvlist);
241 
242 static char *
243 sata_get_devicepath(const char *ap_id);
244 
245 static int
246 sata_confirm(struct cfga_confirm *confp, char *msg);
247 
248 static cfga_sata_ret_t
249 get_port_num(const char *ap_id, uint32_t *port);
250 
251 /* Utilities */
252 
253 static cfga_sata_ret_t
254 physpath_to_devlink(const char *basedir, const char *node_path,
255     char **logpp, int *l_errnop)
256 {
257 	char *linkpath;
258 	char *buf;
259 	char *real_path;
260 	DIR *dp;
261 	struct dirent *dep, *newdep;
262 	int deplen;
263 	boolean_t found = B_FALSE;
264 	int err = 0;
265 	struct stat sb;
266 	char *p;
267 	cfga_sata_ret_t rv = CFGA_SATA_INTERNAL_ERROR;
268 
269 	/*
270 	 * Using libdevinfo for this is overkill and kills performance
271 	 * when multiple consumers of libcfgadm are executing
272 	 * concurrently.
273 	 */
274 	if ((dp = opendir(basedir)) == NULL) {
275 		*l_errnop = errno;
276 		return (CFGA_SATA_INTERNAL_ERROR);
277 	}
278 
279 	linkpath = malloc(PATH_MAX);
280 	buf = malloc(PATH_MAX);
281 	real_path = malloc(PATH_MAX);
282 
283 	deplen = pathconf(basedir, _PC_NAME_MAX);
284 	deplen = (deplen <= 0 ? MAXNAMELEN : deplen) +
285 	    sizeof (struct dirent);
286 	dep = (struct dirent *)malloc(deplen);
287 
288 	if (dep == NULL || linkpath == NULL || buf == NULL ||
289 	    real_path == NULL) {
290 		*l_errnop = ENOMEM;
291 		rv = CFGA_SATA_ALLOC_FAIL;
292 		goto pp_cleanup;
293 	}
294 
295 	*logpp = NULL;
296 
297 	while (!found && (err = readdir_r(dp, dep, &newdep)) == 0 &&
298 	    newdep != NULL) {
299 
300 		assert(newdep == dep);
301 
302 		if (strcmp(dep->d_name, ".") == 0 ||
303 		    strcmp(dep->d_name, "..") == 0)
304 			continue;
305 
306 		(void) snprintf(linkpath, MAXPATHLEN,
307 		    "%s/%s", basedir, dep->d_name);
308 
309 		if (lstat(linkpath, &sb) < 0)
310 			continue;
311 
312 		if (S_ISDIR(sb.st_mode)) {
313 
314 			if ((rv = physpath_to_devlink(linkpath, node_path,
315 			    logpp, l_errnop)) != CFGA_SATA_OK) {
316 
317 				goto pp_cleanup;
318 			}
319 
320 			if (*logpp != NULL)
321 				found = B_TRUE;
322 
323 		} else if (S_ISLNK(sb.st_mode)) {
324 
325 			bzero(buf, PATH_MAX);
326 			if (readlink(linkpath, buf, PATH_MAX) < 0)
327 				continue;
328 
329 
330 			/*
331 			 * realpath() is too darn slow, so fake
332 			 * it, by using what we know about /dev
333 			 * links: they are always of the form:
334 			 * <"../">+/devices/<path>
335 			 */
336 			p = buf;
337 			while (strncmp(p, "../", 3) == 0)
338 				p += 3;
339 
340 			if (p != buf)
341 				p--;	/* back up to get a slash */
342 
343 			assert (*p == '/');
344 
345 			if (strcmp(p, node_path) == 0) {
346 				*logpp = strdup(linkpath);
347 				if (*logpp == NULL) {
348 
349 					rv = CFGA_SATA_ALLOC_FAIL;
350 					goto pp_cleanup;
351 				}
352 
353 				found = B_TRUE;
354 			}
355 		}
356 	}
357 
358 	free(linkpath);
359 	free(buf);
360 	free(real_path);
361 	free(dep);
362 	(void) closedir(dp);
363 
364 	if (err != 0) {
365 		*l_errnop = err;
366 		return (CFGA_SATA_INTERNAL_ERROR);
367 	}
368 
369 	return (CFGA_SATA_OK);
370 
371 pp_cleanup:
372 
373 	if (dp)
374 		(void) closedir(dp);
375 	if (dep)
376 		free(dep);
377 	if (linkpath)
378 		free(linkpath);
379 	if (buf)
380 		free(buf);
381 	if (real_path)
382 		free(real_path);
383 	if (*logpp) {
384 		free(*logpp);
385 		*logpp = NULL;
386 	}
387 	return (rv);
388 }
389 
390 
391 /*
392  * Given the index into a table (msgcvt_t) of messages, get the message
393  * string, converting it to the proper locale if necessary.
394  * NOTE: Indexes are defined in cfga_sata.h
395  */
396 static const char *
397 get_msg(uint_t msg_index, msgcvt_t *msg_tbl, uint_t tbl_size)
398 {
399 	if (msg_index >= tbl_size) {
400 		msg_index = CFGA_SATA_UNKNOWN;
401 	}
402 
403 	return ((msg_tbl[msg_index].intl) ?
404 	    dgettext(TEXT_DOMAIN, msg_tbl[msg_index].msgstr) :
405 	    msg_tbl[msg_index].msgstr);
406 }
407 
408 /*
409  * Allocates and creates a message string (in *ret_str),
410  * by concatenating all the (char *) args together, in order.
411  * Last arg MUST be NULL.
412  */
413 static void
414 set_msg(char **ret_str, ...)
415 {
416 	char    *str;
417 	size_t  total_len;
418 	va_list valist;
419 
420 	va_start(valist, ret_str);
421 
422 	total_len = (*ret_str == NULL) ? 0 : strlen(*ret_str);
423 
424 	while ((str = va_arg(valist, char *)) != NULL) {
425 		size_t  len = strlen(str);
426 		char    *old_str = *ret_str;
427 
428 		*ret_str = (char *)realloc(*ret_str, total_len + len + 1);
429 		if (*ret_str == NULL) {
430 			/* We're screwed */
431 			free(old_str);
432 			va_end(valist);
433 			return;
434 		}
435 
436 		(void) strcpy(*ret_str + total_len, str);
437 		total_len += len;
438 	}
439 
440 	va_end(valist);
441 }
442 
443 /*
444  * Error message handling.
445  * For the rv passed in, looks up the corresponding error message string(s),
446  * internationalized if necessary, and concatenates it into a new
447  * memory buffer, and points *errstring to it.
448  * Note not all rvs will result in an error message return, as not all
449  * error conditions warrant a SATA-specific error message - for those
450  * conditions the cfgadm generic messages are sufficient.
451  *
452  * Some messages may display ap_id or errno, which is why they are passed
453  * in.
454  */
455 
456 cfga_err_t
457 sata_err_msg(
458     char **errstring,
459     cfga_sata_ret_t rv,
460     const char *ap_id,
461     int l_errno)
462 {
463 	if (errstring == NULL) {
464 		return (sata_msgs[rv].cfga_err);
465 	}
466 
467 	/*
468 	 * Generate the appropriate SATA-specific error message(s) (if any).
469 	 */
470 	switch (rv) {
471 	case CFGA_SATA_OK:
472 	case CFGA_NACK:
473 		/* Special case - do nothing.  */
474 		break;
475 
476 	case CFGA_SATA_UNKNOWN:
477 	case CFGA_SATA_DYNAMIC_AP:
478 	case CFGA_SATA_INTERNAL_ERROR:
479 	case CFGA_SATA_OPTIONS:
480 	case CFGA_SATA_ALLOC_FAIL:
481 	case CFGA_SATA_STATE:
482 	case CFGA_SATA_PRIV:
483 	case CFGA_SATA_OPNOTSUPP:
484 	case CFGA_SATA_DATA_ERROR:
485 		/* These messages require no additional strings passed. */
486 		set_msg(errstring, ERR_STR(rv), NULL);
487 		break;
488 
489 	case CFGA_SATA_HWOPNOTSUPP:
490 		/* hardware-specific help needed */
491 		set_msg(errstring, ERR_STR(rv), NULL);
492 		set_msg(errstring, "\n",
493 		    dgettext(TEXT_DOMAIN, sata_help[HELP_HEADER]), NULL);
494 		set_msg(errstring, sata_help[HELP_RESET_PORT], NULL);
495 		set_msg(errstring, sata_help[HELP_RESET_DEVICE], NULL);
496 		set_msg(errstring, sata_help[HELP_RESET_ALL],  NULL);
497 		set_msg(errstring, sata_help[HELP_PORT_ACTIVATE], NULL);
498 		set_msg(errstring, sata_help[HELP_PORT_DEACTIVATE], NULL);
499 		set_msg(errstring, sata_help[HELP_PORT_SELF_TEST], NULL);
500 		set_msg(errstring, sata_help[HELP_CNTRL_SELF_TEST], NULL);
501 		break;
502 
503 	case CFGA_SATA_AP:
504 	case CFGA_SATA_PORT:
505 	case CFGA_SATA_NOT_CONNECTED:
506 	case CFGA_SATA_NOT_CONFIGURED:
507 	case CFGA_SATA_ALREADY_CONNECTED:
508 	case CFGA_SATA_ALREADY_CONFIGURED:
509 	case CFGA_SATA_BUSY:
510 	case CFGA_SATA_DEVLINK:
511 	case CFGA_SATA_RCM_HANDLE:
512 	case CFGA_SATA_RCM_ONLINE:
513 	case CFGA_SATA_RCM_OFFLINE:
514 	case CFGA_SATA_RCM_INFO:
515 	case CFGA_SATA_DEV_CONFIGURE:
516 	case CFGA_SATA_DEV_UNCONFIGURE:
517 	case CFGA_SATA_DISCONNECTED:
518 		/* These messages also print ap_id.  */
519 		set_msg(errstring, ERR_STR(rv), "ap_id: ", ap_id, "", NULL);
520 		break;
521 
522 
523 	case CFGA_SATA_IOCTL:
524 	case CFGA_SATA_NVLIST:
525 		/* These messages also print errno.  */
526 		{
527 			char *errno_str = l_errno ? strerror(l_errno) : "";
528 
529 			set_msg(errstring, ERR_STR(rv), errno_str,
530 			    l_errno ? "\n" : "", NULL);
531 			break;
532 		}
533 
534 	case CFGA_SATA_OPEN:
535 		/* These messages also apid and errno.  */
536 		{
537 			char *errno_str = l_errno ? strerror(l_errno) : "";
538 
539 			set_msg(errstring, ERR_STR(rv), "ap_id: ", ap_id, "\n",
540 			    errno_str, l_errno ? "\n" : "", NULL);
541 			break;
542 		}
543 
544 	default:
545 		set_msg(errstring, ERR_STR(CFGA_SATA_INTERNAL_ERROR), NULL);
546 
547 	} /* end switch */
548 
549 
550 	/*
551 	 * Determine the proper error code to send back to the cfgadm library.
552 	 */
553 	return (sata_msgs[rv].cfga_err);
554 }
555 
556 
557 /*
558  * Entry points
559  */
560 /* cfgadm entry point */
561 /*ARGSUSED*/
562 cfga_err_t
563 cfga_change_state(
564     cfga_cmd_t state_change_cmd,
565     const char *ap_id,
566     const char *options,
567     struct cfga_confirm *confp,
568     struct cfga_msg *msgp,
569     char **errstring,
570     cfga_flags_t flags)
571 {
572 	int		ret;
573 	int 		len;
574 	char		*msg;
575 	char		*devpath;
576 	nvlist_t	*nvl = NULL;
577 	ap_rstate_t	rstate;
578 	ap_ostate_t	ostate;
579 	devctl_hdl_t	hdl = NULL;
580 	cfga_sata_ret_t	rv = CFGA_SATA_OK;
581 	char		*pdyn;
582 	char		*str_type;
583 	size_t		size;
584 	boolean_t	pmult = B_FALSE;
585 
586 	/*
587 	 * All sub-commands which can change state of device require
588 	 * root privileges.
589 	 */
590 	if (geteuid() != 0) {
591 		rv = CFGA_SATA_PRIV;
592 		goto bailout;
593 	}
594 
595 	if ((rv = verify_params(ap_id, options, errstring)) != CFGA_SATA_OK) {
596 		(void) cfga_help(msgp, options, flags);
597 		goto bailout;
598 	}
599 
600 	if ((rv = setup_for_devctl_cmd(ap_id, &hdl, &nvl,
601 	    DC_RDONLY)) != CFGA_SATA_OK) {
602 		goto bailout;
603 	}
604 
605 	/*
606 	 * Checking device type. A port multiplier is not configurable - it is
607 	 * already configured as soon as it is connected.
608 	 */
609 	if ((rv = do_control_ioctl(ap_id, SATA_CFGA_GET_AP_TYPE, NULL,
610 	    (void **)&str_type, &size)) != CFGA_SATA_OK) {
611 		/* no such deivce */
612 		goto bailout;
613 	}
614 	if (strncmp(str_type, "sata-pmult", sizeof ("sata-pmult")) == 0) {
615 		pmult = B_TRUE;
616 	}
617 
618 	switch (state_change_cmd) {
619 	case CFGA_CMD_CONFIGURE:
620 		if (pmult == B_TRUE) {
621 			rv = CFGA_SATA_HWOPNOTSUPP;
622 			goto bailout;
623 		}
624 
625 		if ((rv = port_state(hdl, nvl, &rstate, &ostate)) !=
626 		    CFGA_SATA_OK)
627 			goto bailout;
628 
629 		if (ostate == AP_OSTATE_CONFIGURED) {
630 			rv = CFGA_SATA_ALREADY_CONFIGURED;
631 			goto bailout;
632 		}
633 		/* Disallow dynamic AP name component */
634 		if (GET_DYN(ap_id) != NULL) {
635 			rv = CFGA_SATA_INVALID_DEVNAME;
636 			goto bailout;
637 		}
638 
639 		if (rstate == AP_RSTATE_EMPTY) {
640 			rv = CFGA_SATA_NOT_CONNECTED;
641 			goto bailout;
642 		}
643 		rv = CFGA_SATA_OK;
644 
645 		if (devctl_ap_configure(hdl, nvl) != 0) {
646 			rv = CFGA_SATA_DEV_CONFIGURE;
647 			goto bailout;
648 		}
649 
650 		devpath = sata_get_devicepath(ap_id);
651 		if (devpath == NULL) {
652 			int i;
653 			/*
654 			 * Try for some time as SATA hotplug thread
655 			 * takes a while to create the path then
656 			 * eventually give up.
657 			 */
658 			for (i = 0; i < 12 && (devpath == NULL); i++) {
659 				(void) sleep(6);
660 				devpath = sata_get_devicepath(ap_id);
661 			}
662 
663 			if (devpath == NULL) {
664 				rv = CFGA_SATA_DEV_CONFIGURE;
665 				break;
666 			}
667 		}
668 
669 		S_FREE(devpath);
670 		break;
671 
672 	case CFGA_CMD_UNCONFIGURE:
673 		if (pmult == B_TRUE) {
674 			rv = CFGA_SATA_HWOPNOTSUPP;
675 			goto bailout;
676 		}
677 
678 		if ((rv = port_state(hdl, nvl, &rstate, &ostate)) !=
679 		    CFGA_SATA_OK)
680 			goto bailout;
681 
682 		if (rstate != AP_RSTATE_CONNECTED) {
683 			rv = CFGA_SATA_NOT_CONNECTED;
684 			goto bailout;
685 		}
686 
687 		if (ostate != AP_OSTATE_CONFIGURED) {
688 			rv = CFGA_SATA_NOT_CONFIGURED;
689 			goto bailout;
690 		}
691 		/* Strip off AP name dynamic component, if present */
692 		if ((pdyn = GET_DYN(ap_id)) != NULL) {
693 			*pdyn = '\0';
694 		}
695 
696 		rv = CFGA_SATA_OK;
697 
698 		len = strlen(SATA_CONFIRM_DEVICE) +
699 		    strlen(SATA_CONFIRM_DEVICE_SUSPEND) +
700 		    strlen("Unconfigure") + strlen(ap_id);
701 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
702 			(void) snprintf(msg, len + 3, "Unconfigure"
703 			    " %s%s\n%s",
704 			    SATA_CONFIRM_DEVICE, ap_id,
705 			    SATA_CONFIRM_DEVICE_SUSPEND);
706 		}
707 
708 		if (!sata_confirm(confp, msg)) {
709 			free(msg);
710 			rv = CFGA_SATA_NACK;
711 			break;
712 		}
713 		free(msg);
714 
715 		devpath = sata_get_devicepath(ap_id);
716 		if (devpath == NULL) {
717 			(void) printf(
718 			    "cfga_change_state: get device path failed\n");
719 			rv = CFGA_SATA_DEV_UNCONFIGURE;
720 			break;
721 		}
722 
723 		if ((rv = sata_rcm_offline(ap_id, errstring, devpath, flags))
724 		    != CFGA_SATA_OK) {
725 			break;
726 		}
727 
728 		ret = devctl_ap_unconfigure(hdl, nvl);
729 
730 		if (ret != 0) {
731 			rv = CFGA_SATA_DEV_UNCONFIGURE;
732 			if (errno == EBUSY) {
733 				rv = CFGA_SATA_BUSY;
734 			}
735 			(void) sata_rcm_online(ap_id, errstring, devpath,
736 			    flags);
737 		} else {
738 			(void) sata_rcm_remove(ap_id, errstring, devpath,
739 			    flags);
740 
741 		}
742 		S_FREE(devpath);
743 
744 		break;
745 
746 	case CFGA_CMD_DISCONNECT:
747 		if ((rv = port_state(hdl, nvl, &rstate, &ostate)) !=
748 		    CFGA_SATA_OK)
749 			goto bailout;
750 
751 		if (rstate == AP_RSTATE_DISCONNECTED) {
752 			rv = CFGA_SATA_DISCONNECTED;
753 			goto bailout;
754 		}
755 
756 		/* Strip off AP name dynamic component, if present */
757 		if ((pdyn = GET_DYN(ap_id)) != NULL) {
758 			*pdyn = '\0';
759 		}
760 
761 
762 		rv = CFGA_SATA_OK; /* other statuses don't matter */
763 
764 		/*
765 		 * If the port originally with device attached and was
766 		 * unconfigured already, the devicepath for the sd will be
767 		 * removed. sata_get_devicepath in this case is not necessary.
768 		 */
769 		/* only call rcm_offline if the state was CONFIGURED */
770 		if (ostate == AP_OSTATE_CONFIGURED &&
771 		    pmult == B_FALSE) {
772 			devpath = sata_get_devicepath(ap_id);
773 			if (devpath == NULL) {
774 				(void) printf(
775 				    "cfga_change_state: get path failed\n");
776 				rv = CFGA_SATA_DEV_UNCONFIGURE;
777 				break;
778 			}
779 
780 			len = strlen(SATA_CONFIRM_DEVICE) +
781 			    strlen(SATA_CONFIRM_DEVICE_SUSPEND) +
782 			    strlen("Disconnect") + strlen(ap_id);
783 			if ((msg = (char *)calloc(len +3, 1)) != NULL) {
784 				(void) snprintf(msg, len + 3,
785 				    "Disconnect"
786 				    " %s%s\n%s",
787 				    SATA_CONFIRM_DEVICE, ap_id,
788 				    SATA_CONFIRM_DEVICE_SUSPEND);
789 			}
790 			if (!sata_confirm(confp, msg)) {
791 				free(msg);
792 				rv = CFGA_SATA_NACK;
793 				break;
794 			}
795 			free(msg);
796 
797 			if ((rv = sata_rcm_offline(ap_id, errstring,
798 			    devpath, flags)) != CFGA_SATA_OK) {
799 				break;
800 			}
801 
802 			ret = devctl_ap_unconfigure(hdl, nvl);
803 			if (ret != 0) {
804 				(void) printf(
805 				    "devctl_ap_unconfigure failed\n");
806 				rv = CFGA_SATA_DEV_UNCONFIGURE;
807 				if (errno == EBUSY)
808 					rv = CFGA_SATA_BUSY;
809 				(void) sata_rcm_online(ap_id, errstring,
810 				    devpath, flags);
811 				S_FREE(devpath);
812 
813 				/*
814 				 * The current policy is that if unconfigure
815 				 * failed, do not continue with disconnect.
816 				 * If the port needs to be forced into the
817 				 * disconnect (shutdown) state,
818 				 * the -x sata_port_poweroff command should be
819 				 * used instead of -c disconnect
820 				 */
821 				break;
822 			} else {
823 				(void) printf("%s\n",
824 				    ERR_STR(CFGA_SATA_DEVICE_UNCONFIGURED));
825 				(void) sata_rcm_remove(ap_id, errstring,
826 				    devpath, flags);
827 			}
828 			S_FREE(devpath);
829 		} else if (rstate == AP_RSTATE_CONNECTED ||
830 		    rstate == AP_RSTATE_EMPTY) {
831 			len = strlen(SATA_CONFIRM_PORT) +
832 			    strlen(SATA_CONFIRM_PORT_DISABLE) +
833 			    strlen("Deactivate Port") + strlen(ap_id);
834 			if ((msg = (char *)calloc(len +3, 1)) != NULL) {
835 				(void) snprintf(msg, len +3,
836 				    "Disconnect"
837 				    " %s%s\n%s",
838 				    SATA_CONFIRM_PORT, ap_id,
839 				    SATA_CONFIRM_PORT_DISABLE);
840 			}
841 			if (!sata_confirm(confp, msg)) {
842 				free(msg);
843 				rv = CFGA_SATA_NACK;
844 				break;
845 			}
846 		}
847 		ret = devctl_ap_disconnect(hdl, nvl);
848 		if (ret != 0) {
849 			rv = CFGA_SATA_IOCTL;
850 			if (errno == EBUSY) {
851 				rv = CFGA_SATA_BUSY;
852 			}
853 		}
854 		break;
855 
856 	case CFGA_CMD_CONNECT:
857 		if ((rv = port_state(hdl, nvl, &rstate, &ostate)) !=
858 		    CFGA_SATA_OK)
859 			goto bailout;
860 
861 		if (rstate == AP_RSTATE_CONNECTED) {
862 			rv = CFGA_SATA_ALREADY_CONNECTED;
863 			goto bailout;
864 		}
865 
866 		len = strlen(SATA_CONFIRM_PORT) +
867 		    strlen(SATA_CONFIRM_PORT_ENABLE) +
868 		    strlen("Activate Port") + strlen(ap_id);
869 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
870 			(void) snprintf(msg, len +3, "Activate"
871 			    " %s%s\n%s",
872 			    SATA_CONFIRM_PORT, ap_id,
873 			    SATA_CONFIRM_PORT_ENABLE);
874 		}
875 		if (!sata_confirm(confp, msg)) {
876 			rv = CFGA_SATA_NACK;
877 			break;
878 		}
879 
880 		/* Disallow dynamic AP name component */
881 		if (GET_DYN(ap_id) != NULL) {
882 			rv = CFGA_SATA_INVALID_DEVNAME;
883 			goto bailout;
884 		}
885 
886 		ret = devctl_ap_connect(hdl, nvl);
887 		if (ret != 0) {
888 			rv = CFGA_SATA_IOCTL;
889 		} else {
890 			rv = CFGA_SATA_OK;
891 		}
892 
893 		break;
894 
895 	case CFGA_CMD_LOAD:
896 	case CFGA_CMD_UNLOAD:
897 		(void) cfga_help(msgp, options, flags);
898 		rv = CFGA_SATA_OPNOTSUPP;
899 		break;
900 
901 	case CFGA_CMD_NONE:
902 	default:
903 		(void) cfga_help(msgp, options, flags);
904 		rv = CFGA_SATA_INTERNAL_ERROR;
905 	}
906 
907 bailout:
908 	cleanup_after_devctl_cmd(hdl, nvl);
909 
910 	return (sata_err_msg(errstring, rv, ap_id, errno));
911 }
912 
913 /* cfgadm entry point */
914 cfga_err_t
915 cfga_private_func(
916     const char *func,
917     const char *ap_id,
918     const char *options,
919     struct cfga_confirm *confp,
920     struct cfga_msg *msgp,
921     char **errstring,
922     cfga_flags_t flags)
923 {
924 	int			len;
925 	char 			*msg;
926 	nvlist_t		*list = NULL;
927 	ap_ostate_t		ostate;
928 	ap_rstate_t		rstate;
929 	devctl_hdl_t		hdl = NULL;
930 	cfga_sata_ret_t		rv;
931 	char			*str_p;
932 	size_t			size;
933 
934 	if ((rv = verify_params(ap_id, NULL, errstring)) != CFGA_SATA_OK) {
935 		(void) cfga_help(msgp, options, flags);
936 		return (sata_err_msg(errstring, rv, ap_id, errno));
937 	}
938 
939 	/*
940 	 * All subcommands which can change state of device require
941 	 * root privileges.
942 	 */
943 	if (geteuid() != 0) {
944 		rv = CFGA_SATA_PRIV;
945 		goto bailout;
946 	}
947 
948 	if (func == NULL) {
949 		(void) printf("No valid option specified\n");
950 		rv = CFGA_SATA_OPTIONS;
951 		goto bailout;
952 	}
953 
954 	if ((rv = setup_for_devctl_cmd(ap_id, &hdl, &list, 0)) !=
955 	    CFGA_SATA_OK) {
956 		goto bailout;
957 	}
958 
959 	/* We do not care here about dynamic AP name component */
960 	if ((str_p = GET_DYN(ap_id)) != NULL) {
961 		*str_p = '\0';
962 	}
963 
964 	rv = CFGA_SATA_OK;
965 
966 	if (strcmp(func, SATA_RESET_PORT) == 0) {
967 		len = strlen(SATA_CONFIRM_PORT) +
968 		    strlen(SATA_CONFIRM_DEVICE_ABORT) +
969 		    strlen("Reset Port") + strlen(ap_id);
970 
971 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
972 			(void) snprintf(msg, len +3, "Reset"
973 			    " %s%s\n%s",
974 			    SATA_CONFIRM_PORT, ap_id,
975 			    SATA_CONFIRM_DEVICE_ABORT);
976 		} else {
977 			rv = CFGA_SATA_NACK;
978 			goto bailout;
979 		}
980 
981 		if (!sata_confirm(confp, msg)) {
982 			rv = CFGA_SATA_NACK;
983 			goto bailout;
984 		}
985 
986 		rv = do_control_ioctl(ap_id, SATA_CFGA_RESET_PORT, NULL,
987 		    (void **)&str_p, &size);
988 
989 	} else if (strcmp(func, SATA_RESET_DEVICE) == 0) {
990 		if ((rv = port_state(hdl, list, &rstate, &ostate)) !=
991 		    CFGA_SATA_OK)
992 			goto bailout;
993 		/*
994 		 * Reset device function requires device to be connected
995 		 */
996 		if (rstate != AP_RSTATE_CONNECTED) {
997 			rv = CFGA_SATA_NOT_CONNECTED;
998 			goto bailout;
999 		}
1000 
1001 		len = strlen(SATA_CONFIRM_DEVICE) +
1002 		    strlen(SATA_CONFIRM_DEVICE_ABORT) +
1003 		    strlen("Reset Device") + strlen(ap_id);
1004 
1005 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
1006 			(void) snprintf(msg, len +3, "Reset"
1007 			    " %s%s\n%s",
1008 			    SATA_CONFIRM_DEVICE, ap_id,
1009 			    SATA_CONFIRM_DEVICE_ABORT);
1010 		} else {
1011 			rv = CFGA_SATA_NACK;
1012 			goto bailout;
1013 		}
1014 
1015 		if (!sata_confirm(confp, msg)) {
1016 			rv = CFGA_SATA_NACK;
1017 			goto bailout;
1018 		}
1019 
1020 		rv = do_control_ioctl(ap_id, SATA_CFGA_RESET_DEVICE, NULL,
1021 		    (void **)&str_p, &size);
1022 
1023 	} else if (strcmp(func, SATA_RESET_ALL) == 0) {
1024 		len = strlen(SATA_CONFIRM_CONTROLLER) +
1025 		    strlen(SATA_CONFIRM_CONTROLLER_ABORT) +
1026 		    strlen("Reset All") + strlen(ap_id);
1027 
1028 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
1029 			(void) snprintf(msg, len +3, "Reset"
1030 			    " %s%s\n%s",
1031 			    SATA_CONFIRM_CONTROLLER, ap_id,
1032 			    SATA_CONFIRM_CONTROLLER_ABORT);
1033 		} else {
1034 			rv = CFGA_SATA_NACK;
1035 			goto bailout;
1036 		}
1037 
1038 		if (!sata_confirm(confp, msg)) {
1039 			rv = CFGA_SATA_NACK;
1040 			goto bailout;
1041 		}
1042 		rv = do_control_ioctl(ap_id, SATA_CFGA_RESET_ALL, NULL,
1043 		    (void **)&str_p, &size);
1044 
1045 	} else if (strcmp(func, SATA_PORT_DEACTIVATE) == 0) {
1046 		len = strlen(SATA_CONFIRM_PORT) +
1047 		    strlen(SATA_CONFIRM_PORT_DISABLE) +
1048 		    strlen("Deactivate Port") + strlen(ap_id);
1049 
1050 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
1051 			(void) snprintf(msg, len +3, "Deactivate"
1052 			    " %s%s\n%s",
1053 			    SATA_CONFIRM_PORT, ap_id,
1054 			    SATA_CONFIRM_PORT_DISABLE);
1055 		} else {
1056 			rv = CFGA_SATA_NACK;
1057 			goto bailout;
1058 		}
1059 		if (!sata_confirm(confp, msg)) {
1060 			rv = CFGA_SATA_NACK;
1061 			goto bailout;
1062 		}
1063 
1064 		rv = do_control_ioctl(ap_id, SATA_CFGA_PORT_DEACTIVATE, NULL,
1065 		    (void **)&str_p, &size);
1066 
1067 	} else if (strcmp(func, SATA_PORT_ACTIVATE) == 0) {
1068 		len = strlen(SATA_CONFIRM_PORT) +
1069 		    strlen(SATA_CONFIRM_PORT_ENABLE) +
1070 		    strlen("Activate Port") + strlen(ap_id);
1071 
1072 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
1073 			(void) snprintf(msg, len +3, "Activate"
1074 			    " %s%s\n%s",
1075 			    SATA_CONFIRM_PORT, ap_id,
1076 			    SATA_CONFIRM_PORT_ENABLE);
1077 		} else {
1078 			rv = CFGA_SATA_NACK;
1079 			goto bailout;
1080 		}
1081 		if (!sata_confirm(confp, msg)) {
1082 			rv = CFGA_SATA_NACK;
1083 			goto bailout;
1084 		}
1085 
1086 		rv = do_control_ioctl(ap_id, SATA_CFGA_PORT_ACTIVATE,
1087 		    NULL, (void **)&str_p, &size);
1088 		goto bailout;
1089 
1090 	} else if (strcmp(func, SATA_PORT_SELF_TEST) == 0) {
1091 		len = strlen(SATA_CONFIRM_PORT) +
1092 		    strlen(SATA_CONFIRM_DEVICE_SUSPEND) +
1093 		    strlen("Self Test Port") + strlen(ap_id);
1094 
1095 		if ((msg = (char *)calloc(len +3, 1)) != NULL) {
1096 			(void) snprintf(msg, len +3, "Self Test"
1097 			    " %s%s\n%s",
1098 			    SATA_CONFIRM_PORT, ap_id,
1099 			    SATA_CONFIRM_DEVICE_SUSPEND);
1100 		} else {
1101 			rv = CFGA_SATA_NACK;
1102 			goto bailout;
1103 		}
1104 		if (!sata_confirm(confp, msg)) {
1105 			rv = CFGA_SATA_NACK;
1106 			goto bailout;
1107 		}
1108 
1109 		rv = do_control_ioctl(ap_id, SATA_CFGA_PORT_SELF_TEST,
1110 		    NULL, (void **)&str_p, &size);
1111 	} else {
1112 		/* Unrecognized operation request */
1113 		rv = CFGA_SATA_HWOPNOTSUPP;
1114 	}
1115 
1116 bailout:
1117 	cleanup_after_devctl_cmd(hdl, list);
1118 
1119 	return (sata_err_msg(errstring, rv, ap_id, errno));
1120 
1121 }
1122 
1123 /* cfgadm entry point */
1124 /*ARGSUSED*/
1125 cfga_err_t
1126 cfga_test(
1127     const char *ap_id,
1128     const char *options,
1129     struct cfga_msg *msgp,
1130     char **errstring,
1131     cfga_flags_t flags)
1132 {
1133 	/* Should call ioctl for self test - phase 2 */
1134 	return (CFGA_OPNOTSUPP);
1135 }
1136 
1137 
1138 int
1139 sata_check_target_node(di_node_t node, void *arg)
1140 {
1141 	char *minorpath;
1142 	char *cp;
1143 
1144 	minorpath = di_devfs_minor_path(di_minor_next(node, DI_MINOR_NIL));
1145 	if (minorpath != NULL) {
1146 		if (strstr(minorpath, arg) != NULL) {
1147 			cp = strrchr(minorpath, (int)*MINOR_SEP);
1148 			if (cp != NULL) {
1149 				(void) strcpy(arg, cp);
1150 			}
1151 			free(minorpath);
1152 			return (DI_WALK_TERMINATE);
1153 		}
1154 		free(minorpath);
1155 	}
1156 	return (DI_WALK_CONTINUE);
1157 }
1158 
1159 struct chk_dev {
1160 	int c_isblk;
1161 	char *c_minor;
1162 };
1163 
1164 /*ARGSUSED*/
1165 static int
1166 chk_dev_fcn(di_node_t node, di_minor_t minor, void *arg)
1167 {
1168 	char	*mn;
1169 	struct chk_dev *chkp = (struct chk_dev *)arg;
1170 
1171 	mn = di_minor_name(minor);
1172 	if (mn == NULL)
1173 		return (DI_WALK_CONTINUE);
1174 
1175 	if (strcmp(mn, chkp->c_minor) != 0)
1176 		return (DI_WALK_CONTINUE);
1177 
1178 	chkp->c_isblk = di_minor_spectype(minor) == S_IFBLK ? 1 : 0;
1179 
1180 	return (DI_WALK_TERMINATE);
1181 }
1182 
1183 /*
1184  * Don't use devfs if stat() in /devices fails. Use libdevinfo instead.
1185  * Retired devices don't show up in devfs.
1186  *
1187  *	Returns:
1188  *		1 - minor exists and is of type BLK
1189  *		0 - minor does not exist or is not of type BLK.
1190  */
1191 static int
1192 is_devinfo_blk(char *minor_path)
1193 {
1194 	char	*minor_portion;
1195 	struct chk_dev chk_dev;
1196 	di_node_t node;
1197 	int	rv;
1198 
1199 	/*
1200 	 * prune minor path for di_init() - no /devices prefix and no minor name
1201 	 */
1202 	if (strncmp(minor_path, "/devices/", strlen("/devices/")) != 0)
1203 		return (0);
1204 
1205 	minor_portion = strrchr(minor_path, *MINOR_SEP);
1206 	if (minor_portion == NULL)
1207 		return (0);
1208 
1209 	*minor_portion = 0;
1210 
1211 	node = di_init(minor_path + strlen("/devices"), DINFOMINOR);
1212 
1213 	*minor_portion = *MINOR_SEP;
1214 
1215 	if (node == DI_NODE_NIL)
1216 		return (0);
1217 
1218 	chk_dev.c_isblk = 0;
1219 	chk_dev.c_minor = minor_portion + 1;
1220 
1221 	rv = di_walk_minor(node, NULL, 0, &chk_dev, chk_dev_fcn);
1222 
1223 	di_fini(node);
1224 
1225 	if (rv == 0 && chk_dev.c_isblk)
1226 		return (1);
1227 	else
1228 		return (0);
1229 }
1230 
1231 /*
1232  * The dynamic component buffer returned by this function has to be freed!
1233  */
1234 int
1235 sata_make_dyncomp(const char *ap_id, char **dyncomp, const char *type)
1236 {
1237 	char	*devpath = NULL;
1238 	char	*cp = NULL;
1239 	int	l_errno;
1240 	char	minor_path[MAXPATHLEN];
1241 	char	name_part[MAXNAMELEN];
1242 	char	*devlink = NULL;
1243 	char	*minor_portion = NULL;
1244 	int	deplen;
1245 	int	err;
1246 	DIR	*dp = NULL;
1247 	struct stat sb;
1248 	struct dirent *dep = NULL;
1249 	struct dirent *newdep = NULL;
1250 	char	*p;
1251 
1252 	assert(dyncomp != NULL);
1253 
1254 	/*
1255 	 * Get target node path
1256 	 */
1257 	devpath = sata_get_devicepath(ap_id);
1258 	if (devpath == NULL) {
1259 
1260 		(void) printf("cfga_list_ext: cannot locate target device\n");
1261 		return (CFGA_SATA_DYNAMIC_AP);
1262 
1263 	} else {
1264 
1265 		cp = strrchr(devpath, *PATH_SEP);
1266 		assert(cp != NULL);
1267 		*cp = 0;	/* terminate path for opendir() */
1268 
1269 		(void) strncpy(name_part, cp + 1, MAXNAMELEN);
1270 
1271 		/*
1272 		 * Using libdevinfo for this is overkill and kills
1273 		 * performance when many consumers are using libcfgadm
1274 		 * concurrently.
1275 		 */
1276 		if ((dp = opendir(devpath)) == NULL) {
1277 			goto bailout;
1278 		}
1279 
1280 		/*
1281 		 * deplen is large enough to fit the largest path-
1282 		 * struct dirent includes one byte (the terminator)
1283 		 * so we don't add 1 to the calculation here.
1284 		 */
1285 		deplen = pathconf(devpath, _PC_NAME_MAX);
1286 		deplen = ((deplen <= 0) ? MAXNAMELEN : deplen) +
1287 		    sizeof (struct dirent);
1288 		dep = (struct dirent *)malloc(deplen);
1289 		if (dep == NULL)
1290 			goto bailout;
1291 
1292 		while ((err = readdir_r(dp, dep, &newdep)) == 0 &&
1293 		    newdep != NULL) {
1294 
1295 			assert(newdep == dep);
1296 
1297 			if (strcmp(dep->d_name, ".") == 0 ||
1298 			    strcmp(dep->d_name, "..") == 0 ||
1299 			    (minor_portion = strchr(dep->d_name,
1300 			    *MINOR_SEP)) == NULL)
1301 				continue;
1302 
1303 			*minor_portion = 0;
1304 			if (strcmp(dep->d_name, name_part) != 0)
1305 				continue;
1306 			*minor_portion = *MINOR_SEP;
1307 
1308 			(void) snprintf(minor_path, MAXPATHLEN,
1309 			    "%s/%s", devpath, dep->d_name);
1310 
1311 			/*
1312 			 * Break directly for tape device
1313 			 */
1314 			if (strcmp(type, "tape") == 0)
1315 				break;
1316 
1317 			/*
1318 			 * If stat() fails, the device *may* be retired.
1319 			 * Check via libdevinfo if the device has a BLK minor.
1320 			 * We don't use libdevinfo all the time, since taking
1321 			 * a snapshot is slower than a stat().
1322 			 */
1323 			if (stat(minor_path, &sb) < 0) {
1324 				if (is_devinfo_blk(minor_path)) {
1325 					break;
1326 				} else {
1327 					continue;
1328 				}
1329 			}
1330 
1331 			if (S_ISBLK(sb.st_mode))
1332 				break;
1333 
1334 		}
1335 
1336 		(void) closedir(dp);
1337 		free(dep);
1338 		free(devpath);
1339 
1340 		dp = NULL;
1341 		dep = NULL;
1342 		devpath = NULL;
1343 
1344 		/*
1345 		 * If there was an error, or we didn't exit the loop
1346 		 * by finding a block or character device, bail out.
1347 		 */
1348 		if (err != 0 || newdep == NULL)
1349 			goto bailout;
1350 
1351 		/*
1352 		 * Look for links to the physical path in /dev/dsk
1353 		 * and /dev/rmt. So far, sata modue supports disk,
1354 		 * dvd and tape devices, so we will first look for
1355 		 * BLOCK devices, and then look for tape devices.
1356 		 */
1357 		(void) physpath_to_devlink("/dev/dsk",
1358 		    minor_path, &devlink, &l_errno);
1359 
1360 		/* postprocess and copy logical name here */
1361 		if (devlink != NULL) {
1362 			/*
1363 			 * For disks, remove partition/slice info
1364 			 */
1365 			if ((cp = strstr(devlink, "dsk/")) != NULL) {
1366 				/* cXtYdZ[(s[0..15])|(p[0..X])] */
1367 				if ((p = strchr(cp + 4, 'd')) != NULL) {
1368 					p++;	/* Skip the 'd' */
1369 					while (*p != 0 && isdigit(*p))
1370 						p++;
1371 					*p = 0;
1372 				}
1373 				*dyncomp = strdup(cp);
1374 			}
1375 
1376 			free(devlink);
1377 		} else if (strcmp(type, "tape") == 0) {
1378 
1379 			/*
1380 			 * For tape device, logical name looks like
1381 			 * rmt/X
1382 			 */
1383 			(void) physpath_to_devlink("/dev/rmt",
1384 			    minor_path, &devlink, &l_errno);
1385 
1386 			if (devlink != NULL) {
1387 				if ((cp = strstr(devlink, "rmt/")) != NULL) {
1388 					*dyncomp = strdup(cp);
1389 				}
1390 
1391 				free(devlink);
1392 			}
1393 		}
1394 
1395 		return (SATA_CFGA_OK);
1396 	}
1397 
1398 bailout:
1399 	if (dp)
1400 		(void) closedir(dp);
1401 	if (devpath)
1402 		free(devpath);
1403 	if (dep)
1404 		free(dep);
1405 	return (CFGA_SATA_DYNAMIC_AP);
1406 }
1407 
1408 /* cfgadm entry point */
1409 /*ARGSUSED*/
1410 cfga_err_t
1411 cfga_list_ext(
1412     const char *ap_id,
1413     cfga_list_data_t **ap_id_list,
1414     int *nlistp,
1415     const char *options,
1416     const char *listopts,
1417     char **errstring,
1418     cfga_flags_t flags)
1419 {
1420 	int			l_errno;
1421 	char			*ap_id_log = NULL;
1422 	size_t			size;
1423 	nvlist_t		*user_nvlist = NULL;
1424 	devctl_hdl_t		devctl_hdl = NULL;
1425 	cfga_sata_ret_t		rv = CFGA_SATA_OK;
1426 	devctl_ap_state_t	devctl_ap_state;
1427 	char			*pdyn;
1428 	boolean_t		pmult = B_FALSE;
1429 	uint32_t		port;
1430 
1431 
1432 	if ((rv = verify_params(ap_id, options, errstring)) != CFGA_SATA_OK) {
1433 		(void) cfga_help(NULL, options, flags);
1434 		goto bailout;
1435 	}
1436 	/* We do not care here about dynamic AP name component */
1437 	if ((pdyn = GET_DYN(ap_id)) != NULL) {
1438 		*pdyn = '\0';
1439 	}
1440 
1441 	if (ap_id_list == NULL || nlistp == NULL) {
1442 		rv = CFGA_SATA_DATA_ERROR;
1443 		(void) cfga_help(NULL, options, flags);
1444 		goto bailout;
1445 	}
1446 
1447 	/* Get ap status */
1448 	if ((rv = setup_for_devctl_cmd(ap_id, &devctl_hdl, &user_nvlist,
1449 	    DC_RDONLY)) != CFGA_SATA_OK) {
1450 		goto bailout;
1451 	}
1452 
1453 	/* will call dc_cmd to send IOCTL to kernel */
1454 	if (devctl_ap_getstate(devctl_hdl, user_nvlist,
1455 	    &devctl_ap_state) == -1) {
1456 		cleanup_after_devctl_cmd(devctl_hdl, user_nvlist);
1457 		rv = CFGA_SATA_IOCTL;
1458 		goto bailout;
1459 	}
1460 
1461 	cleanup_after_devctl_cmd(devctl_hdl, user_nvlist);
1462 
1463 	/*
1464 	 * Create cfga_list_data_t struct.
1465 	 */
1466 	if ((*ap_id_list =
1467 	    (cfga_list_data_t *)malloc(sizeof (**ap_id_list))) == NULL) {
1468 		rv = CFGA_SATA_ALLOC_FAIL;
1469 		goto bailout;
1470 	}
1471 	*nlistp = 1;
1472 
1473 	/*
1474 	 * Rest of the code fills in the cfga_list_data_t struct.
1475 	 */
1476 
1477 	/* Get /dev/cfg path to corresponding to the physical ap_id */
1478 	/* Remember ap_id_log must be freed */
1479 	rv = physpath_to_devlink(CFGA_DEV_DIR, (char *)ap_id,
1480 	    &ap_id_log, &l_errno);
1481 
1482 	if (rv != 0) {
1483 		rv = CFGA_SATA_DEVLINK;
1484 		goto bailout;
1485 	}
1486 
1487 	/* Get logical ap_id corresponding to the physical */
1488 	if (ap_id_log == NULL || strstr(ap_id_log, CFGA_DEV_DIR) == NULL) {
1489 		rv = CFGA_SATA_DEVLINK;
1490 		goto bailout;
1491 	}
1492 
1493 	(void) strlcpy((*ap_id_list)->ap_log_id,
1494 	    /* Strip off /dev/cfg/ */ ap_id_log + strlen(CFGA_DEV_DIR)+ 1,
1495 	    sizeof ((*ap_id_list)->ap_log_id));
1496 
1497 	free(ap_id_log);
1498 	ap_id_log = NULL;
1499 
1500 	(void) strlcpy((*ap_id_list)->ap_phys_id, ap_id,
1501 	    sizeof ((*ap_id_list)->ap_phys_id));
1502 
1503 	switch (devctl_ap_state.ap_rstate) {
1504 	case AP_RSTATE_EMPTY:
1505 		(*ap_id_list)->ap_r_state = CFGA_STAT_EMPTY;
1506 		break;
1507 
1508 	case AP_RSTATE_DISCONNECTED:
1509 		(*ap_id_list)->ap_r_state = CFGA_STAT_DISCONNECTED;
1510 		break;
1511 
1512 	case AP_RSTATE_CONNECTED:
1513 		(*ap_id_list)->ap_r_state = CFGA_STAT_CONNECTED;
1514 		break;
1515 
1516 	default:
1517 		rv = CFGA_SATA_STATE;
1518 		goto bailout;
1519 	}
1520 
1521 	switch (devctl_ap_state.ap_ostate) {
1522 	case AP_OSTATE_CONFIGURED:
1523 		(*ap_id_list)->ap_o_state = CFGA_STAT_CONFIGURED;
1524 		break;
1525 
1526 	case AP_OSTATE_UNCONFIGURED:
1527 		(*ap_id_list)->ap_o_state = CFGA_STAT_UNCONFIGURED;
1528 		break;
1529 
1530 	default:
1531 		rv = CFGA_SATA_STATE;
1532 		goto bailout;
1533 	}
1534 
1535 	switch (devctl_ap_state.ap_condition) {
1536 	case AP_COND_OK:
1537 		(*ap_id_list)->ap_cond = CFGA_COND_OK;
1538 		break;
1539 
1540 	case AP_COND_FAILING:
1541 		(*ap_id_list)->ap_cond = CFGA_COND_FAILING;
1542 		break;
1543 
1544 	case AP_COND_FAILED:
1545 		(*ap_id_list)->ap_cond = CFGA_COND_FAILED;
1546 		break;
1547 
1548 	case AP_COND_UNUSABLE:
1549 		(*ap_id_list)->ap_cond = CFGA_COND_UNUSABLE;
1550 		break;
1551 
1552 	case AP_COND_UNKNOWN:
1553 		(*ap_id_list)->ap_cond = CFGA_COND_UNKNOWN;
1554 		break;
1555 
1556 	default:
1557 		rv = CFGA_SATA_STATE;
1558 		goto bailout;
1559 	}
1560 
1561 	(*ap_id_list)->ap_class[0] = '\0';	/* Filled by libcfgadm */
1562 	(*ap_id_list)->ap_busy = devctl_ap_state.ap_in_transition;
1563 	(*ap_id_list)->ap_status_time = devctl_ap_state.ap_last_change;
1564 	(*ap_id_list)->ap_info[0] = NULL;
1565 
1566 	if ((*ap_id_list)->ap_r_state == CFGA_STAT_CONNECTED) {
1567 		char *str_p;
1568 		int skip, i;
1569 
1570 		/*
1571 		 * Fill in the 'Information' field for the -v option
1572 		 * Model (MOD:)
1573 		 */
1574 		if ((rv = do_control_ioctl(ap_id, SATA_CFGA_GET_MODEL_INFO,
1575 		    NULL, (void **)&str_p, &size)) != CFGA_SATA_OK) {
1576 			(void) printf(
1577 			    "SATA_CFGA_GET_MODULE_INFO ioctl failed\n");
1578 			goto bailout;
1579 		}
1580 		/* drop leading and trailing spaces */
1581 		skip = strspn(str_p, " ");
1582 		for (i = size - 1; i >= 0; i--) {
1583 			if (str_p[i] == '\040')
1584 				str_p[i] = '\0';
1585 			else if (str_p[i] != '\0')
1586 				break;
1587 		}
1588 
1589 		(void) strlcpy((*ap_id_list)->ap_info, "Mod: ",
1590 		    sizeof ((*ap_id_list)->ap_info));
1591 		(void) strlcat((*ap_id_list)->ap_info, str_p + skip,
1592 		    sizeof ((*ap_id_list)->ap_info));
1593 
1594 		free(str_p);
1595 
1596 		/*
1597 		 * Fill in the 'Information' field for the -v option
1598 		 * Firmware revision (FREV:)
1599 		 */
1600 		if ((rv = do_control_ioctl(ap_id,
1601 		    SATA_CFGA_GET_REVFIRMWARE_INFO,
1602 		    NULL, (void **)&str_p, &size)) != CFGA_SATA_OK) {
1603 			(void) printf(
1604 			    "SATA_CFGA_GET_REVFIRMWARE_INFO ioctl failed\n");
1605 			goto bailout;
1606 		}
1607 		/* drop leading and trailing spaces */
1608 		skip = strspn(str_p, " ");
1609 		for (i = size - 1; i >= 0; i--) {
1610 			if (str_p[i] == '\040')
1611 				str_p[i] = '\0';
1612 			else if (str_p[i] != '\0')
1613 				break;
1614 		}
1615 		(void) strlcat((*ap_id_list)->ap_info, " FRev: ",
1616 		    sizeof ((*ap_id_list)->ap_info));
1617 		(void) strlcat((*ap_id_list)->ap_info, str_p + skip,
1618 		    sizeof ((*ap_id_list)->ap_info));
1619 
1620 		free(str_p);
1621 
1622 
1623 		/*
1624 		 * Fill in the 'Information' field for the -v option
1625 		 * Serial Number (SN:)
1626 		 */
1627 		if ((rv = do_control_ioctl(ap_id,
1628 		    SATA_CFGA_GET_SERIALNUMBER_INFO,
1629 		    NULL, (void **)&str_p, &size)) != CFGA_SATA_OK) {
1630 			(void) printf(
1631 			    "SATA_CFGA_GET_SERIALNUMBER_INFO ioctl failed\n");
1632 			goto bailout;
1633 		}
1634 		/* drop leading and trailing spaces */
1635 		skip = strspn(str_p, " ");
1636 		for (i = size - 1; i >= 0; i--) {
1637 			if (str_p[i] == '\040')
1638 				str_p[i] = '\0';
1639 			else if (str_p[i] != '\0')
1640 				break;
1641 		}
1642 		(void) strlcat((*ap_id_list)->ap_info, " SN: ",
1643 		    sizeof ((*ap_id_list)->ap_info));
1644 		(void) strlcat((*ap_id_list)->ap_info, str_p + skip,
1645 		    sizeof ((*ap_id_list)->ap_info));
1646 
1647 		free(str_p);
1648 
1649 
1650 
1651 		/* Fill in ap_type which is collected from HBA driver */
1652 		/* call do_control_ioctl TBD */
1653 		if ((rv = do_control_ioctl(ap_id, SATA_CFGA_GET_AP_TYPE, NULL,
1654 		    (void **)&str_p, &size)) != CFGA_SATA_OK) {
1655 			(void) printf(
1656 			    "SATA_CFGA_GET_AP_TYPE ioctl failed\n");
1657 			goto bailout;
1658 		}
1659 
1660 		(void) strlcpy((*ap_id_list)->ap_type, str_p,
1661 		    sizeof ((*ap_id_list)->ap_type));
1662 
1663 		free(str_p);
1664 
1665 		/*
1666 		 * Checking device type. Port multiplier has no dynamic
1667 		 * suffix.
1668 		 */
1669 		if (strncmp((*ap_id_list)->ap_type, "sata-pmult",
1670 		    sizeof ("sata-pmult")) == 0)
1671 			pmult = B_TRUE;
1672 
1673 		if ((*ap_id_list)->ap_o_state == CFGA_STAT_CONFIGURED &&
1674 		    pmult == B_FALSE) {
1675 
1676 			char *dyncomp = NULL;
1677 
1678 			/*
1679 			 * This is the case where we need to generate
1680 			 * a dynamic component of the ap_id, i.e. device.
1681 			 */
1682 			rv = sata_make_dyncomp(ap_id, &dyncomp,
1683 			    (*ap_id_list)->ap_type);
1684 			if (rv != CFGA_SATA_OK)
1685 				goto bailout;
1686 			if (dyncomp != NULL) {
1687 				(void) strcat((*ap_id_list)->ap_log_id,
1688 				    DYN_SEP);
1689 				(void) strlcat((*ap_id_list)->ap_log_id,
1690 				    dyncomp,
1691 				    sizeof ((*ap_id_list)->ap_log_id));
1692 				free(dyncomp);
1693 			}
1694 		}
1695 
1696 	} else {
1697 		/* This is an empty port */
1698 		if (get_port_num(ap_id, &port) != SATA_CFGA_OK) {
1699 			goto bailout;
1700 		}
1701 
1702 		if (port & SATA_CFGA_PMPORT_QUAL) {
1703 			(void) strlcpy((*ap_id_list)->ap_type, "pmult-port",
1704 			    sizeof ((*ap_id_list)->ap_type));
1705 		} else {
1706 			(void) strlcpy((*ap_id_list)->ap_type, "sata-port",
1707 			    sizeof ((*ap_id_list)->ap_type));
1708 		}
1709 	}
1710 
1711 	return (sata_err_msg(errstring, rv, ap_id, errno));
1712 
1713 bailout:
1714 	if (*ap_id_list != NULL) {
1715 		free(*ap_id_list);
1716 	}
1717 	if (ap_id_log != NULL) {
1718 		free(ap_id_log);
1719 	}
1720 
1721 	return (sata_err_msg(errstring, rv, ap_id, errno));
1722 }
1723 /*
1724  * This routine accepts a string adn prints it using
1725  * the message print routine argument.
1726  */
1727 static void
1728 cfga_msg(struct cfga_msg *msgp, const char *str)
1729 {
1730 	int len;
1731 	char *q;
1732 
1733 	if (msgp == NULL || msgp->message_routine == NULL) {
1734 		(void) printf("cfga_msg: NULL msgp\n");
1735 		return;
1736 	}
1737 
1738 	if ((len = strlen(str)) == 0) {
1739 		(void) printf("cfga_msg: null str\n");
1740 		return;
1741 	}
1742 
1743 	if ((q = (char *)calloc(len + 1, 1)) == NULL) {
1744 		perror("cfga_msg");
1745 		return;
1746 	}
1747 
1748 	(void) strcpy(q, str);
1749 	(*msgp->message_routine)(msgp->appdata_ptr, q);
1750 
1751 	free(q);
1752 }
1753 
1754 /* cfgadm entry point */
1755 /* ARGSUSED */
1756 cfga_err_t
1757 cfga_help(struct cfga_msg *msgp, const char *options, cfga_flags_t flags)
1758 {
1759 	if (options != NULL) {
1760 		cfga_msg(msgp, dgettext(TEXT_DOMAIN, sata_help[HELP_UNKNOWN]));
1761 		cfga_msg(msgp, options);
1762 	}
1763 	cfga_msg(msgp, dgettext(TEXT_DOMAIN, sata_help[HELP_HEADER]));
1764 	cfga_msg(msgp, sata_help[HELP_CONFIG]);
1765 	cfga_msg(msgp, sata_help[HELP_RESET_PORT]);
1766 	cfga_msg(msgp, sata_help[HELP_RESET_DEVICE]);
1767 	cfga_msg(msgp, sata_help[HELP_RESET_ALL]);
1768 	cfga_msg(msgp, sata_help[HELP_PORT_ACTIVATE]);
1769 	cfga_msg(msgp, sata_help[HELP_PORT_DEACTIVATE]);
1770 	cfga_msg(msgp, sata_help[HELP_PORT_SELF_TEST]);
1771 	cfga_msg(msgp, sata_help[HELP_CNTRL_SELF_TEST]);
1772 
1773 	return (CFGA_OK);
1774 }
1775 
1776 
1777 /*
1778  * Ensure the ap_id passed is in the correct (physical ap_id) form:
1779  *     path/device:xx[.xx]
1780  * where xx is a one or two-digit number.
1781  *
1782  * Note the library always calls the plugin with a physical ap_id.
1783  */
1784 static int
1785 verify_valid_apid(const char *ap_id)
1786 {
1787 	char	*l_ap_id;
1788 
1789 	if (ap_id == NULL)
1790 		return (-1);
1791 
1792 	l_ap_id = strrchr(ap_id, (int)*MINOR_SEP);
1793 	l_ap_id++;
1794 
1795 	if (strspn(l_ap_id, "0123456789.") != strlen(l_ap_id)) {
1796 		/* Bad characters in the ap_id */
1797 		return (-1);
1798 	}
1799 
1800 	if (strstr(l_ap_id, "..") != NULL) {
1801 		/* ap_id has 1..2 or more than 2 dots */
1802 		return (-1);
1803 	}
1804 
1805 	return (0);
1806 }
1807 
1808 
1809 
1810 /*
1811  * Verify the params passed in are valid.
1812  */
1813 static cfga_sata_ret_t
1814 verify_params(
1815     const char *ap_id,
1816     const char *options,
1817     char **errstring)
1818 {
1819 	char *pdyn, *lap_id;
1820 	int rv;
1821 
1822 	if (errstring != NULL) {
1823 		*errstring = NULL;
1824 	}
1825 
1826 	if (options != NULL) {
1827 		return (CFGA_SATA_OPTIONS);
1828 	}
1829 
1830 	/* Strip dynamic AP name component if it is present. */
1831 	lap_id = strdup(ap_id);
1832 	if (lap_id == NULL) {
1833 		return (CFGA_SATA_ALLOC_FAIL);
1834 	}
1835 	if ((pdyn = GET_DYN(lap_id)) != NULL) {
1836 		*pdyn = '\0';
1837 	}
1838 
1839 	if (verify_valid_apid(lap_id) != 0) {
1840 		rv = CFGA_SATA_AP;
1841 	} else {
1842 		rv = CFGA_SATA_OK;
1843 	}
1844 	free(lap_id);
1845 
1846 	return (rv);
1847 }
1848 
1849 /*
1850  * Takes a validated ap_id and extracts the port number.
1851  * Port multiplier is supported now.
1852  */
1853 static cfga_sata_ret_t
1854 get_port_num(const char *ap_id, uint32_t *port)
1855 {
1856 	uint32_t	cport, pmport = 0, qual = 0;
1857 	char		*cport_str, *pmport_str;
1858 
1859 	/* Get the cport number */
1860 	cport_str = strrchr(ap_id, (int)*MINOR_SEP) + strlen(MINOR_SEP);
1861 
1862 	errno = 0;
1863 	cport = strtol(cport_str, NULL, 10);
1864 	if ((cport & ~SATA_CFGA_CPORT_MASK) != 0 || errno != 0) {
1865 		return (CFGA_SATA_PORT);
1866 	}
1867 
1868 	/* Get pmport number if there is a PORT_SEPARATOR */
1869 	errno = 0;
1870 	if ((pmport_str = strrchr(ap_id, (int)*PORT_SEPARATOR)) != 0) {
1871 		pmport_str += strlen(PORT_SEPARATOR);
1872 		pmport = strtol(pmport_str, NULL, 10);
1873 		qual = SATA_CFGA_PMPORT_QUAL;
1874 		if ((pmport & ~SATA_CFGA_PMPORT_MASK) != 0 || errno != 0) {
1875 			return (CFGA_SATA_PORT);
1876 		}
1877 	}
1878 
1879 	*port = cport | (pmport << SATA_CFGA_PMPORT_SHIFT) | qual;
1880 	return (CFGA_SATA_OK);
1881 }
1882 
1883 /*
1884  * Pair of routines to set up for/clean up after a devctl_ap_* lib call.
1885  */
1886 static void
1887 cleanup_after_devctl_cmd(devctl_hdl_t devctl_hdl, nvlist_t *user_nvlist)
1888 {
1889 	if (user_nvlist != NULL) {
1890 		nvlist_free(user_nvlist);
1891 	}
1892 	if (devctl_hdl != NULL) {
1893 		devctl_release(devctl_hdl);
1894 	}
1895 }
1896 
1897 static cfga_sata_ret_t
1898 setup_for_devctl_cmd(
1899     const char *ap_id,
1900     devctl_hdl_t *devctl_hdl,
1901     nvlist_t **user_nvlistp,
1902     uint_t oflag)
1903 {
1904 
1905 	uint_t	port;
1906 	cfga_sata_ret_t	rv = CFGA_SATA_OK;
1907 	char *lap_id, *pdyn;
1908 
1909 	lap_id = strdup(ap_id);
1910 	if (lap_id == NULL)
1911 		return (CFGA_SATA_ALLOC_FAIL);
1912 	if ((pdyn = GET_DYN(lap_id)) != NULL) {
1913 		*pdyn = '\0';
1914 	}
1915 
1916 	/* Get a devctl handle to pass to the devctl_ap_XXX functions */
1917 	if ((*devctl_hdl = devctl_ap_acquire((char *)lap_id, oflag)) == NULL) {
1918 		(void) fprintf(stderr, "[libcfgadm:sata] "
1919 		    "setup_for_devctl_cmd: devctl_ap_acquire failed: %s\n",
1920 		    strerror(errno));
1921 		rv = CFGA_SATA_DEVCTL;
1922 		goto bailout;
1923 	}
1924 
1925 	/* Set up nvlist to pass the port number down to the driver */
1926 	if (nvlist_alloc(user_nvlistp, NV_UNIQUE_NAME_TYPE, NULL) != 0) {
1927 		*user_nvlistp = NULL;
1928 		rv = CFGA_SATA_NVLIST;
1929 		(void) printf("nvlist_alloc failed\n");
1930 		goto bailout;
1931 	}
1932 
1933 	/*
1934 	 * Get port id, for Port Multiplier port, things could be a little bit
1935 	 * complicated because of "port.port" format in ap_id, thus for
1936 	 * port multiplier port, port number should be coded as 32bit int
1937 	 * with the sig 16 bit as sata channel number, least 16 bit as
1938 	 * the port number of sata port multiplier port.
1939 	 */
1940 	if ((rv = get_port_num(lap_id, &port)) != CFGA_SATA_OK) {
1941 		(void) printf(
1942 		    "setup_for_devctl_cmd: get_port_num, errno: %d\n",
1943 		    errno);
1944 		goto bailout;
1945 	}
1946 
1947 	/* Creates an int32_t entry */
1948 	if (nvlist_add_int32(*user_nvlistp, PORT, port) == -1) {
1949 		(void) printf("nvlist_add_int32 failed\n");
1950 		rv = CFGA_SATA_NVLIST;
1951 		goto bailout;
1952 	}
1953 
1954 	free(lap_id);
1955 	return (rv);
1956 
1957 bailout:
1958 	free(lap_id);
1959 	(void) cleanup_after_devctl_cmd(*devctl_hdl, *user_nvlistp);
1960 
1961 	return (rv);
1962 }
1963 
1964 
1965 static cfga_sata_ret_t
1966 port_state(devctl_hdl_t hdl, nvlist_t *list,
1967     ap_rstate_t *rstate, ap_ostate_t *ostate)
1968 {
1969 	devctl_ap_state_t	devctl_ap_state;
1970 
1971 	if (devctl_ap_getstate(hdl, list, &devctl_ap_state) == -1) {
1972 		(void) printf("devctl_ap_getstate failed, errno: %d\n", errno);
1973 		return (CFGA_SATA_IOCTL);
1974 	}
1975 	*rstate = devctl_ap_state.ap_rstate;
1976 	*ostate =  devctl_ap_state.ap_ostate;
1977 	return (CFGA_SATA_OK);
1978 }
1979 
1980 
1981 /*
1982  * Given a subcommand to the DEVCTL_AP_CONTROL ioctl, rquest the size of
1983  * the data to be returned, allocate a buffer, then get the data.
1984  * Returns *descrp (which must be freed) and size.
1985  *
1986  * Note SATA_DESCR_TYPE_STRING returns an ASCII NULL-terminated string,
1987  * not a string descr.
1988  */
1989 cfga_sata_ret_t
1990 do_control_ioctl(const char *ap_id, sata_cfga_apctl_t subcommand, uint_t arg,
1991     void **descrp, size_t *sizep)
1992 {
1993 	int			fd = -1;
1994 	uint_t			port;
1995 	uint32_t		local_size;
1996 	cfga_sata_ret_t		rv = CFGA_SATA_OK;
1997 	struct sata_ioctl_data	ioctl_data;
1998 
1999 	assert(descrp != NULL);
2000 	*descrp = NULL;
2001 	assert(sizep != NULL);
2002 
2003 	if ((rv = get_port_num(ap_id, &port)) != CFGA_SATA_OK) {
2004 		goto bailout;
2005 	}
2006 
2007 	if ((fd = open(ap_id, O_RDONLY)) == -1) {
2008 		(void) printf("do_control_ioctl: open failed: errno:%d\n",
2009 		    errno);
2010 		rv = CFGA_SATA_OPEN;
2011 		if (errno == EBUSY) {
2012 			rv = CFGA_SATA_BUSY;
2013 		}
2014 		goto bailout;
2015 	}
2016 
2017 	ioctl_data.cmd = subcommand;
2018 	ioctl_data.port = port;
2019 	ioctl_data.misc_arg = (uint_t)arg;
2020 
2021 	/*
2022 	 * Find out how large a buf we need to get the data.
2023 	 * Note the ioctls only accept/return a 32-bit int for a get_size
2024 	 * to avoid 32/64 and BE/LE issues.
2025 	 */
2026 	if ((subcommand == SATA_CFGA_GET_AP_TYPE) ||
2027 	    (subcommand == SATA_CFGA_GET_DEVICE_PATH) ||
2028 	    (subcommand == SATA_CFGA_GET_MODEL_INFO) ||
2029 	    (subcommand == SATA_CFGA_GET_REVFIRMWARE_INFO) ||
2030 	    (subcommand == SATA_CFGA_GET_SERIALNUMBER_INFO)) {
2031 		ioctl_data.get_size = B_TRUE;
2032 		ioctl_data.buf = (caddr_t)&local_size;
2033 		ioctl_data.bufsiz = sizeof (local_size);
2034 
2035 		if (ioctl(fd, DEVCTL_AP_CONTROL, &ioctl_data) != 0) {
2036 			perror("ioctl failed (size)");
2037 			rv = CFGA_SATA_IOCTL;
2038 			goto bailout;
2039 		}
2040 		*sizep = local_size;
2041 
2042 		if (local_size == 0) {
2043 			(void) printf("zero length data\n");
2044 			rv = CFGA_SATA_ZEROLEN;
2045 			goto bailout;
2046 		}
2047 		if ((*descrp = malloc(*sizep)) == NULL) {
2048 			(void) printf("do_control_ioctl: malloc failed\n");
2049 			rv = CFGA_SATA_ALLOC_FAIL;
2050 			goto bailout;
2051 		}
2052 	} else {
2053 		*sizep = 0;
2054 	}
2055 	ioctl_data.get_size = B_FALSE;
2056 	ioctl_data.buf = *descrp;
2057 	ioctl_data.bufsiz = *sizep;
2058 
2059 	/* Execute IOCTL */
2060 
2061 	if (ioctl(fd, DEVCTL_AP_CONTROL, &ioctl_data) != 0) {
2062 		rv = CFGA_SATA_IOCTL;
2063 		goto bailout;
2064 	}
2065 
2066 	(void) close(fd);
2067 
2068 	return (rv);
2069 
2070 bailout:
2071 	if (fd != -1) {
2072 		(void) close(fd);
2073 	}
2074 	if (*descrp != NULL) {
2075 		free(*descrp);
2076 		*descrp = NULL;
2077 	}
2078 
2079 	if (rv == CFGA_SATA_IOCTL && errno == EBUSY) {
2080 		rv = CFGA_SATA_BUSY;
2081 	}
2082 
2083 	return (rv);
2084 }
2085 
2086 
2087 static int
2088 sata_confirm(struct cfga_confirm *confp, char *msg)
2089 {
2090 	int rval;
2091 
2092 	if (confp == NULL || confp->confirm == NULL) {
2093 		return (0);
2094 	}
2095 	rval = (*confp->confirm)(confp->appdata_ptr, msg);
2096 
2097 	return (rval);
2098 }
2099 
2100 
2101 static char *
2102 sata_get_devicepath(const char *ap_id)
2103 {
2104 	char		*devpath = NULL;
2105 	size_t		size;
2106 	cfga_sata_ret_t	rv;
2107 
2108 	rv = do_control_ioctl(ap_id, SATA_CFGA_GET_DEVICE_PATH, NULL,
2109 	    (void **)&devpath, &size);
2110 
2111 	if (rv == CFGA_SATA_OK) {
2112 		return (devpath);
2113 	} else {
2114 		return ((char *)NULL);
2115 	}
2116 
2117 }
2118