xref: /illumos-gate/usr/src/cmd/ndmpd/ndmp/ndmpd_config.c (revision 91760536453132b0d3369ad5543622a5478007e6)
1 /*
2  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*
7  * BSD 3 Clause License
8  *
9  * Copyright (c) 2007, The Storage Networking Industry Association.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 	- Redistributions of source code must retain the above copyright
15  *	  notice, this list of conditions and the following disclaimer.
16  *
17  * 	- Redistributions in binary form must reproduce the above copyright
18  *	  notice, this list of conditions and the following disclaimer in
19  *	  the documentation and/or other materials provided with the
20  *	  distribution.
21  *
22  *	- Neither the name of The Storage Networking Industry Association (SNIA)
23  *	  nor the names of its contributors may be used to endorse or promote
24  *	  products derived from this software without specific prior written
25  *	  permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
28  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGE.
38  */
39 /* Copyright (c) 2007, The Storage Networking Industry Association. */
40 /* Copyright (c) 1996, 1997 PDC, Network Appliance. All Rights Reserved */
41 
42 #include <dirent.h>
43 #include <errno.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <string.h>
47 #include <sys/stat.h>
48 #include <sys/mnttab.h>
49 #include <sys/mntent.h>
50 #include <sys/mntio.h>
51 #include <sys/statvfs.h>
52 #include <sys/utsname.h>
53 #include <sys/scsi/scsi.h>
54 #include <unistd.h>
55 #include <sys/systeminfo.h>
56 #include "ndmpd_common.h"
57 #include "ndmpd.h"
58 
59 static void simple_get_attrs(ulong_t *attributes);
60 
61 /*
62  * Number of environment variable for the file system
63  * info in V3 net_fs_info.
64  */
65 #define	V3_N_FS_ENVS	4
66 
67 /*
68  * Is the file system a valid one to be reported to the
69  * clients?
70  */
71 #define	IS_VALID_FS(fs) (fs && ( \
72 	strcasecmp(fs->mnt_fstype, MNTTYPE_UFS) == 0 || \
73 	strcasecmp(fs->mnt_fstype, MNTTYPE_ZFS) == 0 || \
74 	strcasecmp(fs->mnt_fstype, MNTTYPE_NFS) == 0 || \
75 	strcasecmp(fs->mnt_fstype, MNTTYPE_NFS3) == 0 || \
76 	strcasecmp(fs->mnt_fstype, MNTTYPE_NFS4) == 0))
77 
78 #define	MNTTYPE_LEN	10
79 
80 extern struct fs_ops sfs2_ops;
81 extern struct fs_ops sfs2cpv_ops;
82 
83 
84 /*
85  * ************************************************************************
86  * NDMP V2 HANDLERS
87  * ************************************************************************
88  */
89 
90 /*
91  * ndmpd_config_get_host_info_v2
92  *
93  * This handler handles the ndmp_config_get_host_info request.
94  * Host specific information is returned.
95  *
96  * Parameters:
97  *   connection (input) - connection handle.
98  *   body       (input) - request message body.
99  *
100  * Returns:
101  *   void
102  */
103 /*ARGSUSED*/
104 void
105 ndmpd_config_get_host_info_v2(ndmp_connection_t *connection, void *body)
106 {
107 	ndmp_config_get_host_info_reply_v2 reply;
108 	ndmp_auth_type auth_types[2];
109 	char buf[HOSTNAMELEN + 1];
110 	struct utsname uts;
111 	char hostidstr[16];
112 	ulong_t hostid;
113 
114 	(void) memset((void*)&reply, 0, sizeof (reply));
115 	(void) memset(buf, 0, sizeof (buf));
116 	(void) gethostname(buf, sizeof (buf));
117 
118 	reply.error = NDMP_NO_ERR;
119 	reply.hostname = buf;
120 	(void) uname(&uts);
121 	reply.os_type = uts.sysname;
122 	reply.os_vers = uts.release;
123 
124 	if (sysinfo(SI_HW_SERIAL, hostidstr, sizeof (hostidstr)) < 0) {
125 		NDMP_LOG(LOG_DEBUG, "sysinfo error: %m.");
126 		reply.error = NDMP_UNDEFINED_ERR;
127 	}
128 
129 	/*
130 	 * Convert the hostid to hex. The returned string must match
131 	 * the string returned by hostid(1).
132 	 */
133 	hostid = strtoul(hostidstr, 0, 0);
134 	(void) snprintf(hostidstr, sizeof (hostidstr), "%lx", hostid);
135 	reply.hostid = hostidstr;
136 
137 	auth_types[0] = NDMP_AUTH_TEXT;
138 	reply.auth_type.auth_type_len = 1;
139 	reply.auth_type.auth_type_val = auth_types;
140 
141 	ndmp_send_reply(connection, (void *) &reply,
142 	    "sending ndmp_config_get_host_info reply");
143 }
144 
145 
146 /*
147  * ndmpd_config_get_butype_attr_v2
148  *
149  * This handler handles the ndmp_config_get_butype_attr request.
150  * Information about the specified backup type is returned.
151  *
152  * Parameters:
153  *   connection (input) - connection handle.
154  *   body       (input) - request message body.
155  *
156  * Returns:
157  *   void
158  */
159 void
160 ndmpd_config_get_butype_attr_v2(ndmp_connection_t *connection, void *body)
161 {
162 	ndmp_config_get_butype_attr_request *request;
163 	ndmp_config_get_butype_attr_reply reply;
164 
165 	request = (ndmp_config_get_butype_attr_request *)body;
166 
167 	reply.error = NDMP_NO_ERR;
168 
169 	if (strcmp(request->name, "dump") == 0) {
170 		(void) simple_get_attrs(&reply.attrs);
171 	} else if (strcmp(request->name, "tar") == 0) {
172 		reply.attrs = NDMP_NO_BACKUP_FILELIST;
173 	} else {
174 		NDMP_LOG(LOG_ERR, "Invalid backup type: %s.", request->name);
175 		NDMP_LOG(LOG_ERR,
176 		    "Supported backup types are 'dump' and 'tar' only.");
177 		reply.error = NDMP_ILLEGAL_ARGS_ERR;
178 	}
179 
180 	ndmp_send_reply(connection, (void *) &reply,
181 	    "sending ndmp_config_get_butype_attr reply");
182 }
183 
184 
185 /*
186  * ndmpd_config_get_mover_type_v2
187  *
188  * This handler handles the ndmp_config_get_mover_type request.
189  * Information about the supported mover types is returned.
190  *
191  * Parameters:
192  *   connection (input) - connection handle.
193  *   body       (input) - request message body.
194  *
195  * Returns:
196  *   void
197  */
198 /*ARGSUSED*/
199 void
200 ndmpd_config_get_mover_type_v2(ndmp_connection_t *connection, void *body)
201 {
202 	ndmp_config_get_mover_type_reply reply;
203 	ndmp_addr_type types[2];
204 
205 	types[0] = NDMP_ADDR_LOCAL;
206 	types[1] = NDMP_ADDR_TCP;
207 
208 	reply.error = NDMP_NO_ERR;
209 	reply.methods.methods_len = 2;
210 	reply.methods.methods_val = types;
211 
212 	ndmp_send_reply(connection, (void *) &reply,
213 	    "sending ndmp_config_get_mover_type reply");
214 }
215 
216 
217 
218 /*
219  * ndmpd_config_get_auth_attr_v2
220  *
221  * This handler handles the ndmp_config_get_auth_attr request.
222  * Authorization type specific information is returned.
223  *
224  * Parameters:
225  *   connection (input) - connection handle.
226  *   body       (input) - request message body.
227  *
228  * Returns:
229  *   void
230  */
231 void
232 ndmpd_config_get_auth_attr_v2(ndmp_connection_t *connection, void *body)
233 {
234 	ndmp_config_get_auth_attr_request *request;
235 	ndmp_config_get_auth_attr_reply reply;
236 	ndmpd_session_t *session = ndmp_get_client_data(connection);
237 
238 	request = (ndmp_config_get_auth_attr_request *)body;
239 
240 	reply.error = NDMP_NO_ERR;
241 	reply.server_attr.auth_type = request->auth_type;
242 
243 	switch (request->auth_type) {
244 	case NDMP_AUTH_TEXT:
245 		break;
246 	case NDMP_AUTH_MD5:
247 		/* Create a 64 byte random session challenge */
248 		randomize(session->ns_challenge, MD5_CHALLENGE_SIZE);
249 		(void) memcpy(reply.server_attr.ndmp_auth_attr_u.challenge,
250 		    session->ns_challenge, MD5_CHALLENGE_SIZE);
251 		break;
252 	case NDMP_AUTH_NONE:
253 		/* FALL THROUGH */
254 	default:
255 		NDMP_LOG(LOG_ERR, "Invalid authentication type: %d.",
256 		    request->auth_type);
257 		NDMP_LOG(LOG_ERR,
258 		    "Supported authentication types are md5 and cleartext.");
259 		reply.error = NDMP_ILLEGAL_ARGS_ERR;
260 		break;
261 	}
262 
263 	ndmp_send_reply(connection, (void *) &reply,
264 	    "sending ndmp_config_get_auth_attr reply");
265 }
266 
267 
268 /*
269  * ************************************************************************
270  * NDMP V3 HANDLERS
271  * ************************************************************************
272  */
273 
274 /*
275  * ndmpd_config_get_host_info_v3
276  *
277  * This handler handles the ndmp_config_get_host_info request.
278  * Host specific information is returned.
279  *
280  * Parameters:
281  *   connection (input) - connection handle.
282  *   body       (input) - request message body.
283  *
284  * Returns:
285  *   void
286  */
287 /*ARGSUSED*/
288 void
289 ndmpd_config_get_host_info_v3(ndmp_connection_t *connection, void *body)
290 {
291 	ndmp_config_get_host_info_reply_v3 reply;
292 	char buf[HOSTNAMELEN+1];
293 	struct utsname uts;
294 	char hostidstr[16];
295 	ulong_t hostid;
296 
297 	(void) memset((void*)&reply, 0, sizeof (reply));
298 	(void) memset(buf, 0, sizeof (buf));
299 	(void) gethostname(buf, sizeof (buf));
300 
301 
302 	reply.error = NDMP_NO_ERR;
303 	reply.hostname = buf;
304 	(void) uname(&uts);
305 	reply.os_type = uts.sysname;
306 	reply.os_vers = uts.release;
307 
308 	if (sysinfo(SI_HW_SERIAL, hostidstr, sizeof (hostidstr)) < 0) {
309 
310 		NDMP_LOG(LOG_DEBUG, "sysinfo error: %m.");
311 		reply.error = NDMP_UNDEFINED_ERR;
312 	}
313 
314 	/*
315 	 * Convert the hostid to hex. The returned string must match
316 	 * the string returned by hostid(1).
317 	 */
318 	hostid = strtoul(hostidstr, 0, 0);
319 	(void) snprintf(hostidstr, sizeof (hostidstr), "%lx", hostid);
320 	reply.hostid = hostidstr;
321 
322 	ndmp_send_reply(connection, (void *) &reply,
323 	    "sending ndmp_config_get_host_info reply");
324 }
325 
326 
327 /*
328  * ndmpd_config_get_connection_type_v3
329  *
330  * This handler handles the ndmp_config_get_connection_type_request.
331  * A list of supported data connection types is returned.
332  *
333  * Parameters:
334  *   connection (input) - connection handle.
335  *   body       (input) - request message body.
336  *
337  * Returns:
338  *   void
339  */
340 /*ARGSUSED*/
341 void
342 ndmpd_config_get_connection_type_v3(ndmp_connection_t *connection,
343     void *body)
344 {
345 	ndmp_config_get_connection_type_reply_v3 reply;
346 	ndmp_addr_type addr_types[2];
347 
348 	(void) memset((void*)&reply, 0, sizeof (reply));
349 
350 	reply.error = NDMP_NO_ERR;
351 
352 	addr_types[0] = NDMP_ADDR_LOCAL;
353 	addr_types[1] = NDMP_ADDR_TCP;
354 	reply.addr_types.addr_types_len = 2;
355 	reply.addr_types.addr_types_val = addr_types;
356 
357 	ndmp_send_reply(connection, (void *) &reply,
358 	    "sending config_get_connection_type_v3 reply");
359 }
360 
361 
362 
363 /*
364  * ndmpd_config_get_auth_attr_v3
365  *
366  * This handler handles the ndmp_config_get_auth_attr request.
367  * Authorization type specific information is returned.
368  *
369  * Parameters:
370  *   connection (input) - connection handle.
371  *   body       (input) - request message body.
372  *
373  * Returns:
374  *   void
375  */
376 void
377 ndmpd_config_get_auth_attr_v3(ndmp_connection_t *connection, void *body)
378 {
379 	ndmp_config_get_auth_attr_request *request;
380 	ndmp_config_get_auth_attr_reply reply;
381 	ndmpd_session_t *session = ndmp_get_client_data(connection);
382 
383 	request = (ndmp_config_get_auth_attr_request *)body;
384 
385 	(void) memset((void*)&reply, 0, sizeof (reply));
386 	reply.error = NDMP_NO_ERR;
387 	reply.server_attr.auth_type = request->auth_type;
388 
389 	switch (request->auth_type) {
390 	case NDMP_AUTH_TEXT:
391 		break;
392 	case NDMP_AUTH_MD5:
393 		/* Create a 64 bytes random session challenge */
394 		randomize(session->ns_challenge, MD5_CHALLENGE_SIZE);
395 		(void) memcpy(reply.server_attr.ndmp_auth_attr_u.challenge,
396 		    session->ns_challenge, MD5_CHALLENGE_SIZE);
397 		break;
398 	case NDMP_AUTH_NONE:
399 		/* FALL THROUGH */
400 	default:
401 		NDMP_LOG(LOG_ERR, "Invalid authentication type: %d.",
402 		    request->auth_type);
403 		NDMP_LOG(LOG_ERR,
404 		    "Supported authentication types are md5 and cleartext.");
405 		reply.error = NDMP_ILLEGAL_ARGS_ERR;
406 		break;
407 	}
408 
409 	ndmp_send_reply(connection, (void *) &reply,
410 	    "sending ndmp_config_get_auth_attr_v3 reply");
411 }
412 
413 
414 /*
415  * ndmpd_config_get_butype_info_v3
416  *
417  * This handler handles the ndmp_config_get_butype_info_request.
418  * Information about all supported backup types are returned.
419  *
420  * Parameters:
421  *   connection (input) - connection handle.
422  *   body       (input) - request message body.
423  *
424  * Returns:
425  *   void
426  */
427 /*ARGSUSED*/
428 void
429 ndmpd_config_get_butype_info_v3(ndmp_connection_t *connection, void *body)
430 {
431 	ndmp_config_get_butype_info_reply_v3 reply;
432 	ndmp_butype_info info[2];
433 	ndmp_pval envs[8];
434 	ulong_t attrs;
435 	ndmp_pval *envp = envs;
436 
437 	(void) memset((void*)&reply, 0, sizeof (reply));
438 
439 	/*
440 	 * Supported environment variables and their default values.
441 	 * The environment variables for dump and tar format are the
442 	 * same, because we use the same backup engine for both.
443 	 */
444 	NDMP_SETENV(envp, "PREFIX", "");
445 	NDMP_SETENV(envp, "TYPE", "");
446 	NDMP_SETENV(envp, "DIRECT", "n");
447 	NDMP_SETENV(envp, "HIST", "n");
448 	NDMP_SETENV(envp, "FILESYSTEM", "");
449 	NDMP_SETENV(envp, "LEVEL", "0");
450 	NDMP_SETENV(envp, "UPDATE", "TRUE");
451 	NDMP_SETENV(envp, "BASE_DATE", "");
452 
453 	attrs = NDMP_BUTYPE_BACKUP_FILE_HISTORY |
454 	    NDMP_BUTYPE_RECOVER_FILELIST |
455 	    NDMP_BUTYPE_BACKUP_DIRECT |
456 	    NDMP_BUTYPE_BACKUP_INCREMENTAL |
457 	    NDMP_BUTYPE_BACKUP_UTF8 |
458 	    NDMP_BUTYPE_RECOVER_UTF8;
459 
460 	/* If DAR supported */
461 	if (ndmp_dar_support)
462 		attrs |= NDMP_BUTYPE_RECOVER_DIRECT;
463 
464 	/* tar backup type */
465 	info[0].butype_name = "tar";
466 	info[0].default_env.default_env_len = ARRAY_LEN(envs, ndmp_pval);
467 	info[0].default_env.default_env_val = envs;
468 	info[0].attrs = attrs;
469 
470 	/* dump backup type */
471 	info[1].butype_name = "dump";
472 	info[1].default_env.default_env_len = ARRAY_LEN(envs, ndmp_pval);
473 	info[1].default_env.default_env_val = envs;
474 	info[1].attrs = attrs;
475 
476 	reply.error = NDMP_NO_ERR;
477 	reply.butype_info.butype_info_len = ARRAY_LEN(info, ndmp_butype_info);
478 	reply.butype_info.butype_info_val = info;
479 
480 	ndmp_send_reply(connection, (void *)&reply,
481 	    "sending ndmp_config_get_butype_info reply");
482 }
483 
484 /*
485  * ndmpd_config_get_fs_info_v3
486  *
487  * This handler handles the ndmp_config_get_fs_info_request.
488  * Information about all mounted file systems is returned.
489  *
490  * Parameters:
491  *   connection (input) - connection handle.
492  *   body       (input) - request message body.
493  *
494  * Returns:
495  *   void
496  */
497 /*ARGSUSED*/
498 void
499 ndmpd_config_get_fs_info_v3(ndmp_connection_t *connection, void *body)
500 {
501 	ndmp_config_get_fs_info_reply_v3 reply;
502 	ndmp_fs_info_v3 *fsip, *fsip_save; /* FS info pointer */
503 	int i, nmnt, fd;
504 	int log_dev_len;
505 	FILE *fp = NULL;
506 	struct mnttab mt, *fs;
507 	struct statvfs64 stat_buf;
508 	ndmp_pval *envp, *save;
509 
510 	(void) memset((void*)&reply, 0, sizeof (reply));
511 	reply.error = NDMP_NO_ERR;
512 
513 	if ((fd = open(MNTTAB, O_RDONLY)) == -1) {
514 		NDMP_LOG(LOG_ERR, "File mnttab open error: %m.");
515 		reply.error = NDMP_UNDEFINED_ERR;
516 		ndmp_send_reply(connection, (void *)&reply,
517 		    "sending ndmp_config_get_fs_info reply");
518 		return;
519 	}
520 
521 	/* nothing was found, send an empty reply */
522 	if (ioctl(fd, MNTIOC_NMNTS, &nmnt) != 0 || nmnt <= 0) {
523 		NDMP_LOG(LOG_ERR, "No file system found.");
524 		ndmp_send_reply(connection, (void *)&reply,
525 		    "sending ndmp_config_get_fs_info reply");
526 		return;
527 	}
528 
529 	fp = fopen(MNTTAB, "r");
530 	if (!fp) {
531 		NDMP_LOG(LOG_ERR, "File mnttab open error: %m.");
532 		reply.error = NDMP_UNDEFINED_ERR;
533 		ndmp_send_reply(connection, (void *)&reply,
534 		    "sending ndmp_config_get_fs_info reply");
535 		return;
536 	}
537 
538 	fsip_save = fsip = ndmp_malloc(sizeof (ndmp_fs_info_v3) * nmnt);
539 	if (!fsip) {
540 		(void) fclose(fp);
541 		reply.error = NDMP_NO_MEM_ERR;
542 		ndmp_send_reply(connection, (void *)&reply,
543 		    "error sending ndmp_config_get_fs_info reply");
544 		return;
545 	}
546 
547 	/*
548 	 * Re-read the directory and set up file system information.
549 	 */
550 	i = 0;
551 	rewind(fp);
552 	while (i < nmnt && (getmntent(fp, &mt) == 0))
553 
554 	{
555 		fs = &mt;
556 		log_dev_len = strlen(mt.mnt_mountp)+2;
557 		if (!IS_VALID_FS(fs))
558 			continue;
559 
560 		fsip->fs_logical_device = ndmp_malloc(log_dev_len);
561 		fsip->fs_type = ndmp_malloc(MNTTYPE_LEN);
562 		if (!fsip->fs_logical_device || !fsip->fs_type) {
563 			reply.error = NDMP_NO_MEM_ERR;
564 			free(fsip->fs_logical_device);
565 			free(fsip->fs_type);
566 			break;
567 		}
568 		(void) snprintf(fsip->fs_type, MNTTYPE_LEN, "%s",
569 		    fs->mnt_fstype);
570 		(void) snprintf(fsip->fs_logical_device, log_dev_len, "%s",
571 		    fs->mnt_mountp);
572 		fsip->invalid = 0;
573 
574 		if (statvfs64(fs->mnt_mountp, &stat_buf) < 0) {
575 			NDMP_LOG(LOG_DEBUG,
576 			    "statvfs(%s) error.", fs->mnt_mountp);
577 			fsip->fs_status =
578 			    "statvfs error: unable to determine filesystem"
579 			    " attributes";
580 		} else {
581 			fsip->invalid = 0;
582 			fsip->total_size =
583 			    long_long_to_quad((u_longlong_t)stat_buf.f_frsize *
584 			    (u_longlong_t)stat_buf.f_blocks);
585 			fsip->used_size =
586 			    long_long_to_quad((u_longlong_t)stat_buf.f_frsize *
587 			    (u_longlong_t)(stat_buf.f_blocks-stat_buf.f_bfree));
588 
589 			fsip->avail_size =
590 			    long_long_to_quad((u_longlong_t)stat_buf.f_frsize *
591 			    (u_longlong_t)stat_buf.f_bfree);
592 			fsip->total_inodes =
593 			    long_long_to_quad((u_longlong_t)stat_buf.f_files);
594 			fsip->used_inodes =
595 			    long_long_to_quad((u_longlong_t)(stat_buf.f_files -
596 			    stat_buf.f_ffree));
597 			fsip->fs_status = "";
598 		}
599 		save = envp = ndmp_malloc(sizeof (ndmp_pval) * V3_N_FS_ENVS);
600 		if (!envp) {
601 			reply.error = NDMP_NO_MEM_ERR;
602 			break;
603 		}
604 		(void) memset((void*)save, 0,
605 		    V3_N_FS_ENVS * sizeof (ndmp_pval));
606 
607 		fsip->fs_env.fs_env_val = envp;
608 		NDMP_SETENV(envp, "LOCAL", "y");
609 		NDMP_SETENV(envp, "TYPE", fsip->fs_type);
610 		NDMP_SETENV(envp, "AVAILABLE_BACKUP", "tar,dump");
611 
612 		if (FS_READONLY(fs) == 0) {
613 			NDMP_SETENV(envp, "AVAILABLE_RECOVERY", "tar,dump");
614 		}
615 
616 		fsip->fs_env.fs_env_len = envp - save;
617 		i++;
618 		fsip++;
619 	}
620 	(void) fclose(fp);
621 	if (reply.error == NDMP_NO_ERR) {
622 		reply.fs_info.fs_info_len = i;
623 		reply.fs_info.fs_info_val = fsip_save;
624 	} else {
625 		reply.fs_info.fs_info_len = 0;
626 		reply.fs_info.fs_info_val = NULL;
627 	}
628 	ndmp_send_reply(connection, (void *)&reply,
629 	    "error sending ndmp_config_get_fs_info reply");
630 
631 	fsip = fsip_save;
632 	while (--i >= 0) {
633 		free(fsip->fs_logical_device);
634 		free(fsip->fs_env.fs_env_val);
635 		free(fsip->fs_type);
636 		fsip++;
637 	}
638 
639 	free(fsip_save);
640 }
641 
642 
643 /*
644  * ndmpd_config_get_tape_info_v3
645  *
646  * This handler handles the ndmp_config_get_tape_info_request.
647  * Information about all connected tape drives is returned.
648  *
649  * Parameters:
650  *   connection (input) - connection handle.
651  *   body       (input) - request message body.
652  *
653  * Returns:
654  *   void
655  */
656 /*ARGSUSED*/
657 void
658 ndmpd_config_get_tape_info_v3(ndmp_connection_t *connection, void *body)
659 {
660 	ndmp_config_get_tape_info_reply_v3 reply;
661 	ndmp_device_info_v3 *tip, *tip_save = NULL; /* tape info pointer */
662 	ndmp_device_capability_v3 *dcp;
663 	ndmp_device_capability_v3 *dcp_save = NULL; /* dev capability pointer */
664 	int i, n, max;
665 	sasd_drive_t *sd;
666 	scsi_link_t *sl;
667 	ndmp_pval env;
668 	ndmp_pval *envp = &env;
669 
670 	(void) memset((void*)&reply, 0, sizeof (reply));
671 	max = sasd_dev_count();
672 
673 	tip_save = tip = ndmp_malloc(sizeof (ndmp_device_info_v3) * max);
674 	dcp_save = dcp = ndmp_malloc(sizeof (ndmp_device_capability_v3) * max);
675 	if (!tip_save || !dcp_save) {
676 		free(tip_save);
677 		free(dcp_save);
678 		reply.error = NDMP_NO_MEM_ERR;
679 		ndmp_send_reply(connection, (void *)&reply,
680 		    "error sending ndmp_config_get_tape_info reply");
681 		return;
682 	}
683 
684 	reply.error = NDMP_NO_ERR;
685 	NDMP_SETENV(envp, "EXECUTE_CDB", "b");
686 
687 	for (i = n = 0; i < max; i++) {
688 		if (!(sl = sasd_dev_slink(i)) || !(sd = sasd_drive(i)))
689 			continue;
690 		if (sl->sl_type != DTYPE_SEQUENTIAL)
691 			continue;
692 
693 		NDMP_LOG(LOG_DEBUG,
694 		    "model \"%s\" dev \"%s\"", sd->sd_id, sd->sd_name);
695 
696 		tip->model = sd->sd_id; /* like "DLT7000	 " */
697 		tip->caplist.caplist_len = 1;
698 		tip->caplist.caplist_val = dcp;
699 		dcp->device = sd->sd_name; /* like "isp1t060" */
700 		dcp->attr = 0;
701 		dcp->capability.capability_len = 1;
702 		dcp->capability.capability_val = &env;
703 		tip++;
704 		dcp++;
705 		n++;
706 	}
707 
708 	NDMP_LOG(LOG_DEBUG, "n %d", n);
709 
710 	/*
711 	 * We should not receive the get_tape_info when three-way backup is
712 	 * running and we are acting as just data, but some clients try
713 	 * to get the Tape information anyway.
714 	 */
715 	if (n == 0 || max <= 0) {
716 		reply.error = NDMP_NO_DEVICE_ERR;
717 		ndmp_send_reply(connection, (void *)&reply,
718 		    "error sending ndmp_config_get_tape_info reply");
719 		free(tip_save); free(dcp_save);
720 		return;
721 	}
722 
723 
724 	reply.tape_info.tape_info_len = n;
725 	reply.tape_info.tape_info_val = tip_save;
726 
727 	ndmp_send_reply(connection, (void *)&reply,
728 	    "error sending ndmp_config_get_tape_info reply");
729 
730 	free(tip_save);
731 	free(dcp_save);
732 }
733 
734 
735 /*
736  * ndmpd_config_get_scsi_info_v3
737  *
738  * This handler handles the ndmp_config_get_tape_scsi_request.
739  * Information about all connected scsi tape stacker and jukeboxes
740  * is returned.
741  *
742  * Parameters:
743  *   connection (input) - connection handle.
744  *   body       (input) - request message body.
745  *
746  * Returns:
747  *   void
748  */
749 /*ARGSUSED*/
750 void
751 ndmpd_config_get_scsi_info_v3(ndmp_connection_t *connection, void *body)
752 {
753 	ndmp_config_get_scsi_info_reply_v3 reply;
754 	ndmp_device_info_v3 *sip, *sip_save;
755 	ndmp_device_capability_v3 *dcp, *dcp_save;
756 	int i, n, max;
757 	sasd_drive_t *sd;
758 	scsi_link_t *sl;
759 
760 	(void) memset((void*)&reply, 0, sizeof (reply));
761 	max = sasd_dev_count();
762 	sip_save = sip = ndmp_malloc(sizeof (ndmp_device_info_v3) * max);
763 	dcp_save = dcp = ndmp_malloc(sizeof (ndmp_device_capability_v3) * max);
764 	if (!sip_save || !dcp_save) {
765 		free(sip_save);
766 		free(dcp_save);
767 		reply.error = NDMP_NO_MEM_ERR;
768 		ndmp_send_reply(connection, (void *)&reply,
769 		    "error sending ndmp_config_get_tape_info reply");
770 		return;
771 	}
772 
773 	reply.error = NDMP_NO_ERR;
774 	for (i = n = 0; i < max; i++) {
775 		if (!(sl = sasd_dev_slink(i)) || !(sd = sasd_drive(i)))
776 			continue;
777 		if (sl->sl_type != DTYPE_CHANGER)
778 			continue;
779 
780 		NDMP_LOG(LOG_DEBUG,
781 		    "model \"%s\" dev \"%s\"", sd->sd_id, sd->sd_name);
782 
783 		sip->model = sd->sd_id; /* like "Powerstor L200  " */
784 		sip->caplist.caplist_len = 1;
785 		sip->caplist.caplist_val = dcp;
786 		dcp->device = sd->sd_name; /* like "isp1m000" */
787 
788 		dcp->attr = 0;
789 		dcp->capability.capability_len = 0;
790 		dcp->capability.capability_val = NULL;
791 		sip++;
792 		dcp++;
793 		n++;
794 	}
795 
796 	NDMP_LOG(LOG_DEBUG, "n %d", n);
797 
798 	reply.scsi_info.scsi_info_len = n;
799 	reply.scsi_info.scsi_info_val = sip_save;
800 
801 	ndmp_send_reply(connection, (void *)&reply,
802 	    "error sending ndmp_config_get_scsi_info reply");
803 
804 	free(sip_save);
805 	free(dcp_save);
806 }
807 
808 
809 /*
810  * ndmpd_config_get_server_info_v3
811  *
812  * This handler handles the ndmp_config_get_server_info request.
813  * Host specific information is returned.
814  *
815  * Parameters:
816  *   connection (input) - connection handle.
817  *   body       (input) - request message body.
818  *
819  * Returns:
820  *   void
821  */
822 /*ARGSUSED*/
823 void
824 ndmpd_config_get_server_info_v3(ndmp_connection_t *connection, void *body)
825 {
826 	ndmp_config_get_server_info_reply_v3 reply;
827 	ndmp_auth_type auth_types[2];
828 	char rev_number[10];
829 	ndmpd_session_t *session = ndmp_get_client_data(connection);
830 
831 	(void) memset((void*)&reply, 0, sizeof (reply));
832 	reply.error = NDMP_NO_ERR;
833 
834 	if (connection->conn_authorized ||
835 	    session->ns_protocol_version != NDMPV4) {
836 		reply.vendor_name = VENDOR_NAME;
837 		reply.product_name = PRODUCT_NAME;
838 		(void) snprintf(rev_number, sizeof (rev_number), "%d",
839 		    ndmp_ver);
840 		reply.revision_number = rev_number;
841 	} else {
842 		reply.vendor_name = "\0";
843 		reply.product_name = "\0";
844 		reply.revision_number = "\0";
845 	}
846 
847 	NDMP_LOG(LOG_DEBUG,
848 	    "vendor \"%s\", product \"%s\" rev \"%s\"",
849 	    reply.vendor_name, reply.product_name, reply.revision_number);
850 
851 	auth_types[0] = NDMP_AUTH_TEXT;
852 	auth_types[1] = NDMP_AUTH_MD5;
853 	reply.auth_type.auth_type_len = ARRAY_LEN(auth_types, ndmp_auth_type);
854 	reply.auth_type.auth_type_val = auth_types;
855 
856 	ndmp_send_reply(connection, (void *)&reply,
857 	    "error sending ndmp_config_get_server_info reply");
858 }
859 
860 
861 
862 /*
863  * ************************************************************************
864  * NDMP V4 HANDLERS
865  * ************************************************************************
866  */
867 
868 /*
869  * ndmpd_config_get_butype_info_v4
870  *
871  * This handler handles the ndmp_config_get_butype_info_request.
872  * Information about all supported backup types are returned.
873  *
874  * Parameters:
875  *   connection (input) - connection handle.
876  *   body       (input) - request message body.
877  *
878  * Returns:
879  *   void
880  */
881 /*ARGSUSED*/
882 void
883 ndmpd_config_get_butype_info_v4(ndmp_connection_t *connection, void *body)
884 {
885 	ndmp_config_get_butype_info_reply_v4 reply;
886 	ndmp_butype_info info[2];
887 	ndmp_pval envs[12];
888 	ulong_t attrs;
889 	ndmp_pval *envp = envs;
890 
891 	(void) memset((void*)&reply, 0, sizeof (reply));
892 
893 	/*
894 	 * Supported environment variables and their default values.
895 	 * The environment variables for dump and tar format are the
896 	 * same, because we use the same backup engine for both.
897 	 */
898 	NDMP_SETENV(envp, "FILESYSTEM", "");
899 	NDMP_SETENV(envp, "DIRECT", "n");
900 	NDMP_SETENV(envp, "RECURSIVE", "n");
901 	NDMP_SETENV(envp, "TYPE", "");
902 	NDMP_SETENV(envp, "USER", "");
903 	NDMP_SETENV(envp, "HIST", "n");
904 	NDMP_SETENV(envp, "PATHNAME_SEPARATOR", "/");
905 	NDMP_SETENV(envp, "LEVEL", "0");
906 	NDMP_SETENV(envp, "EXTRACT", "y");
907 	NDMP_SETENV(envp, "UPDATE", "y");
908 	NDMP_SETENV(envp, "CMD", "");
909 	NDMP_SETENV(envp, "BASE_DATE", "");
910 
911 	attrs = NDMP_BUTYPE_RECOVER_FILELIST |
912 	    NDMP_BUTYPE_BACKUP_DIRECT |
913 	    NDMP_BUTYPE_BACKUP_INCREMENTAL |
914 	    NDMP_BUTYPE_BACKUP_UTF8 |
915 	    NDMP_BUTYPE_RECOVER_UTF8 |
916 	    NDMP_BUTYPE_BACKUP_FH_FILE |
917 	    NDMP_BUTYPE_BACKUP_FH_DIR |
918 	    NDMP_BUTYPE_RECOVER_FH_FILE |
919 	    NDMP_BUTYPE_RECOVER_FH_DIR;
920 
921 	/* If DAR supported */
922 	if (ndmp_dar_support)
923 		attrs |= NDMP_BUTYPE_RECOVER_DIRECT;
924 
925 	/* tar backup type */
926 	info[0].butype_name = "tar";
927 	info[0].default_env.default_env_len = ARRAY_LEN(envs, ndmp_pval);
928 	info[0].default_env.default_env_val = envs;
929 	info[0].attrs = attrs;
930 
931 	/* dump backup type */
932 	info[1].butype_name = "dump";
933 	info[1].default_env.default_env_len = ARRAY_LEN(envs, ndmp_pval);
934 	info[1].default_env.default_env_val = envs;
935 	info[1].attrs = attrs;
936 
937 	reply.error = NDMP_NO_ERR;
938 	reply.butype_info.butype_info_len = ARRAY_LEN(info, ndmp_butype_info);
939 	reply.butype_info.butype_info_val = info;
940 
941 	ndmp_send_reply(connection, (void *)&reply,
942 	    "sending ndmp_config_get_butype_info reply");
943 }
944 
945 
946 /*
947  * ndmpd_config_get_ext_list_v4
948  *
949  * This handler handles the ndmpd_config_get_ext_list_v4 request.
950  *
951  * Parameters:
952  *   connection (input) - connection handle.
953  *   body       (input) - request message body.
954  *
955  * Returns:
956  *   void
957  */
958 /*ARGSUSED*/
959 void
960 ndmpd_config_get_ext_list_v4(ndmp_connection_t *connection, void *body)
961 {
962 	ndmp_config_get_ext_list_reply_v4 reply;
963 	ndmpd_session_t *session = ndmp_get_client_data(connection);
964 
965 	(void) memset((void*)&reply, 0, sizeof (reply));
966 
967 	if (session->ns_set_ext_list == FALSE)
968 		reply.error = NDMP_EXT_DANDN_ILLEGAL_ERR;
969 	else
970 		reply.error = NDMP_NO_ERR;
971 
972 	reply.class_list.class_list_val = NULL;
973 	reply.class_list.class_list_len = 0;
974 
975 
976 	ndmp_send_reply(connection, (void *)&reply,
977 	    "error sending ndmp_config_get_ext_list reply");
978 }
979 
980 /*
981  * ndmpd_config_set_ext_list_v4
982  *
983  * This handler handles the ndmpd_config_get_ext_list_v4 request.
984  *
985  * Parameters:
986  *   connection (input) - connection handle.
987  *   body       (input) - request message body.
988  *
989  * Returns:
990  *   void
991  */
992 /*ARGSUSED*/
993 void
994 ndmpd_config_set_ext_list_v4(ndmp_connection_t *connection, void *body)
995 {
996 	ndmp_config_set_ext_list_reply_v4 reply;
997 	ndmpd_session_t *session = ndmp_get_client_data(connection);
998 
999 	(void) memset((void*)&reply, 0, sizeof (reply));
1000 	if (session->ns_set_ext_list == TRUE) {
1001 		reply.error = NDMP_EXT_DANDN_ILLEGAL_ERR;
1002 	} else {
1003 		session->ns_set_ext_list = TRUE;
1004 		/*
1005 		 * NOTE: for now we are not supporting any extension list,
1006 		 * hence this error, when we start to support extensions,
1007 		 * this should be validated
1008 		 */
1009 
1010 		reply.error = NDMP_VERSION_NOT_SUPPORTED_ERR;
1011 	}
1012 
1013 	ndmp_send_reply(connection, (void *)&reply,
1014 	    "error sending ndmp_config_set_ext_list reply");
1015 }
1016 
1017 
1018 
1019 /*
1020  * ************************************************************************
1021  * LOCALS
1022  * ************************************************************************
1023  */
1024 
1025 /*
1026  * simple_get_attrs
1027  *
1028  * Set the default attrs for dump mode
1029  *
1030  * Parameters:
1031  *   attributes (output) - the attributes for dump mode
1032  *
1033  * Returns:
1034  *   void
1035  */
1036 static void
1037 simple_get_attrs(ulong_t *attributes)
1038 {
1039 	*attributes = NDMP_NO_RECOVER_FHINFO;
1040 }
1041