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 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28/*
29 * replace mirror component
30 */
31
32#include <meta.h>
33
34#include <sdssc.h>
35
36/*
37 * print usage message
38 */
39static void
40usage(
41	mdsetname_t	*sp,
42	int		eval
43)
44{
45	(void) fprintf(stderr, gettext("\
46usage:	%s [-s setname] mirror component-old component-new\n\
47	%s [-s setname] -e mirror component\n\
48	%s [-s setname] [-f] RAID component-old component-new\n\
49	%s [-s setname] [-f] -e RAID component\n"),
50	    myname, myname, myname, myname);
51	md_exit(sp, eval);
52}
53
54/*
55 * online replace a physical disk in a metamirror
56 */
57int
58main(
59	int		argc,
60	char		*argv[]
61)
62{
63	char		*sname = NULL;
64	mdsetname_t	*sp = NULL;
65	mdcmdopts_t	options = (MDCMD_PRINT|MDCMD_DOIT);
66	mdname_t	*namep;
67	int		eflag = 0;
68	int		c;
69	md_error_t	status = mdnullerror;
70	md_error_t	*ep = &status;
71	int		error;
72	char		*uname = NULL;
73	bool_t		called_thru_rpc = FALSE;
74	char		*cp;
75	int		origargc = argc;
76	char		**origargv = argv;
77
78	/*
79	 * Get the locale set up before calling any other routines
80	 * with messages to ouput.  Just in case we're not in a build
81	 * environment, make sure that TEXT_DOMAIN gets set to
82	 * something.
83	 */
84#if !defined(TEXT_DOMAIN)
85#define	TEXT_DOMAIN "SYS_TEST"
86#endif
87	(void) setlocale(LC_ALL, "");
88	(void) textdomain(TEXT_DOMAIN);
89
90
91	if ((cp = strstr(argv[0], ".rpc_call")) == NULL) {
92		if (sdssc_bind_library() == SDSSC_OKAY)
93			if (sdssc_cmd_proxy(argc, argv, SDSSC_PROXY_PRIMARY,
94						&error) == SDSSC_PROXY_DONE)
95				exit(error);
96	} else {
97		*cp = '\0'; /* cut off ".rpc_call" */
98		called_thru_rpc = TRUE;
99	}
100
101	/* initialize */
102	if (md_init(argc, argv, 0, 1, ep) != 0 ||
103			meta_check_root(ep) != 0) {
104		mde_perror(ep, "");
105		md_exit(sp, 1);
106	}
107
108	/* parse arguments */
109	optind = 1;
110	opterr = 1;
111	while ((c = getopt(argc, argv, "hs:efn?")) != -1) {
112		switch (c) {
113		case 'h':
114			usage(sp, 0);
115			break;
116
117		case 's':
118			sname = optarg;
119			break;
120
121		case 'e':
122			++eflag;
123			break;
124
125		case 'f':
126			options |= MDCMD_FORCE;
127			break;
128
129		case 'n':
130			if (called_thru_rpc == TRUE) {
131				options &= ~MDCMD_DOIT;
132			} else {
133				usage(sp, 1);
134			}
135			break;
136
137		case '?':
138			if (optopt == '?')
139				usage(sp, 0);
140			/*FALLTHROUGH*/
141		default:
142			usage(sp, 1);
143			break;
144		}
145	}
146	argc -= optind;
147	argv += optind;
148
149	if (sname != NULL) {
150		if ((sp = metasetname(sname, ep)) == NULL) {
151			mde_perror(ep, "");
152			md_exit(sp, 1);
153		}
154	}
155
156	/* get device */
157	if (argc < 1)
158		usage(sp, 1);
159
160	uname = argv[0];
161
162	if (((namep = metaname(&sp, uname, META_DEVICE, ep)) == NULL)) {
163		mde_perror(ep, "");
164		md_exit(sp, 1);
165	}
166
167	if (metachkmeta(namep, ep) != 0) {
168		mde_perror(ep, "");
169		md_exit(sp, 1);
170	}
171
172	assert(sp != NULL);
173	if ((called_thru_rpc == FALSE) &&
174	    meta_is_mn_name(&sp, argv[0], ep)) {
175		/*
176		 * If we are dealing with a MN set and we were not
177		 * called thru an rpc call, we are just to send this
178		 * command string to the master of the set and let it
179		 * deal with it.
180		 * Note that if sp is NULL, meta_is_mn_name() derives sp
181		 * from argv[0] which is the metadevice arg
182		 */
183		int  i;
184		int  newargc;
185		int  result;
186		char *miscname;
187		char **newargv;
188
189		if ((miscname = metagetmiscname(namep, ep)) == NULL) {
190			mde_perror(ep, "");
191			md_exit(sp, 1);
192		}
193
194		newargv = calloc(origargc+1, sizeof (char *));
195		newargv[0] = "metareplace";
196		newargv[1] = "-n"; /* always do "-n" first */
197		newargc = 2;
198		for (i = 1; i < origargc; i++, newargc++) {
199			newargv[newargc] = origargv[i];
200		}
201
202		result = meta_mn_send_command(sp, newargc, newargv,
203		    MD_DISP_STDERR | MD_DRYRUN, NO_CONTEXT_STRING, ep);
204
205		/* If we've found a problem don't do it for real */
206		if (result != 0) {
207			md_exit(sp, result);
208		}
209		/*
210		 * Do it for real now. Remove "-n" from the arguments and
211		 * MD_DRYRUN from the flags. If this fails, the master must
212		 * panic as the mddbs may be inconsistent.
213		 */
214		newargv[1] = ""; /* this was "-n" before */
215		result = meta_mn_send_command(sp, newargc, newargv,
216		    MD_DISP_STDERR | MD_RETRY_BUSY | MD_PANIC_WHEN_INCONSISTENT,
217		    NO_CONTEXT_STRING, ep);
218
219		free(newargv);
220
221		/*
222		 * if the metareplace command succeeds for a mirror, send a
223		 * resync starting message for the metadevice
224		 */
225		if ((result == 0) && (strcmp(miscname, MD_MIRROR) == 0)) {
226			if ((result = meta_mn_send_resync_starting(namep, ep))
227			    != 0)
228				mde_perror(ep, "Unable to start resync");
229		}
230		md_exit(sp, result);
231	}
232
233	--argc, ++argv;
234
235	/* grab set lock */
236	if (meta_lock(sp, TRUE, ep)) {
237		mde_perror(ep, "");
238		md_exit(sp, 1);
239	}
240
241	/* check for ownership */
242	if (meta_check_ownership(sp, ep) != 0) {
243		mde_perror(ep, "");
244		md_exit(sp, 1);
245	}
246
247	if (eflag) {				/* enable component */
248		mdname_t	*compnp;
249
250		if (argc != 1)
251			usage(sp, 1);
252
253		if ((compnp = metaname(&sp, argv[0], UNKNOWN, ep)) == NULL) {
254			mde_perror(ep, "");
255			md_exit(sp, 1);
256		}
257		if (meta_enable_byname(sp, namep, compnp, options, ep)
258		    != 0) {
259			mde_perror(ep, "");
260			md_exit(sp, 1);
261		}
262	} else {				/* replace component */
263		mdname_t	*oldnp;
264		mdname_t	*newnp;
265
266		if (argc != 2)
267			usage(sp, 1);
268
269		if ((oldnp = metaname(&sp, argv[0], UNKNOWN, ep)) == NULL) {
270			mde_perror(ep, "");
271			md_exit(sp, 1);
272		}
273		if ((newnp = metaname(&sp, argv[1], UNKNOWN, ep)) == NULL) {
274			mde_perror(ep, "");
275			md_exit(sp, 1);
276		}
277		if (meta_replace_byname(sp, namep, oldnp, newnp,
278		    options, ep) != 0) {
279			mde_perror(ep, "");
280			md_exit(sp, 1);
281		}
282	}
283
284	/* update md.cf */
285	if (meta_update_md_cf(sp, ep) != 0) {
286		mde_perror(ep, "");
287		md_exit(sp, 1);
288	}
289
290	md_exit(sp, 0);
291	/*NOTREACHED*/
292	return (0);
293}
294