1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include <string.h> 31*0Sstevel@tonic-gate #include <sys/vfstab.h> 32*0Sstevel@tonic-gate #include <meta.h> 33*0Sstevel@tonic-gate #include <libsvm.h> 34*0Sstevel@tonic-gate #include <svm.h> 35*0Sstevel@tonic-gate #include <sdssc.h> 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate extern int mod_unload(char *modname); 39*0Sstevel@tonic-gate static int inited = 0; 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate /* 42*0Sstevel@tonic-gate * FUNCTION: init_metalib 43*0Sstevel@tonic-gate * initialize libmeta only once. 44*0Sstevel@tonic-gate * 45*0Sstevel@tonic-gate * RETURN VALUES: 46*0Sstevel@tonic-gate * 0 - SUCCESS 47*0Sstevel@tonic-gate * -1 - FAIL 48*0Sstevel@tonic-gate */ 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate static int 51*0Sstevel@tonic-gate init_metalib() 52*0Sstevel@tonic-gate { 53*0Sstevel@tonic-gate int largc = 1; 54*0Sstevel@tonic-gate char *largv = "libsvm"; 55*0Sstevel@tonic-gate md_error_t status = mdnullerror; 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate if (!inited) { 58*0Sstevel@tonic-gate if (md_init_nosig(largc, &largv, 0, 1, &status) != 0 || 59*0Sstevel@tonic-gate meta_check_root(&status) != 0) { 60*0Sstevel@tonic-gate return (-1); 61*0Sstevel@tonic-gate } 62*0Sstevel@tonic-gate inited = 1; 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate return (RET_SUCCESS); 65*0Sstevel@tonic-gate } 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * FUNCTION: reset_metalib 69*0Sstevel@tonic-gate * 70*0Sstevel@tonic-gate * INPUT: ptr to md_error_t 71*0Sstevel@tonic-gate */ 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate static void 74*0Sstevel@tonic-gate reset_metalib(md_error_t *ep) 75*0Sstevel@tonic-gate { 76*0Sstevel@tonic-gate inited = 0; 77*0Sstevel@tonic-gate (void) close_admin(ep); 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate /* 81*0Sstevel@tonic-gate * FUNCTION: metahalt 82*0Sstevel@tonic-gate * halt the metadb 83*0Sstevel@tonic-gate * 84*0Sstevel@tonic-gate */ 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate static void 87*0Sstevel@tonic-gate metahalt() 88*0Sstevel@tonic-gate { 89*0Sstevel@tonic-gate mdsetname_t *sp; 90*0Sstevel@tonic-gate md_error_t status = mdnullerror; 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate (void) init_metalib(); 93*0Sstevel@tonic-gate if ((sp = metasetname(MD_LOCAL_NAME, &status)) == NULL) { 94*0Sstevel@tonic-gate return; 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate if (meta_lock(sp, TRUE, &status)) { 97*0Sstevel@tonic-gate return; 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate if (metaioctl(MD_HALT, NULL, &status, NULL) != 0) { 100*0Sstevel@tonic-gate debug_printf("metahalt(): errno %d\n", 101*0Sstevel@tonic-gate status.info.md_error_info_t_u.sys_error.errnum); 102*0Sstevel@tonic-gate } 103*0Sstevel@tonic-gate (void) meta_unlock(sp, &status); 104*0Sstevel@tonic-gate reset_metalib(&status); 105*0Sstevel@tonic-gate } 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate /* 108*0Sstevel@tonic-gate * FUNCTION: svm_stop 109*0Sstevel@tonic-gate * Halt the SDS/SVM configuration and unload md module. 110*0Sstevel@tonic-gate * 111*0Sstevel@tonic-gate * RETURN VALUES: 112*0Sstevel@tonic-gate * 0 - SUCCESS 113*0Sstevel@tonic-gate * RET_ERROR 114*0Sstevel@tonic-gate */ 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate #define MAX_TIMEOUT 1800 117*0Sstevel@tonic-gate int 118*0Sstevel@tonic-gate svm_stop() 119*0Sstevel@tonic-gate { 120*0Sstevel@tonic-gate int rval = RET_SUCCESS; 121*0Sstevel@tonic-gate int timeval = 0; 122*0Sstevel@tonic-gate int sleep_int = 5; 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate metahalt(); 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate if ((rval = mod_unload(MD_MODULE)) != 0) { 127*0Sstevel@tonic-gate timeval += sleep_int; 128*0Sstevel@tonic-gate (void) sleep(sleep_int); 129*0Sstevel@tonic-gate while (timeval < MAX_TIMEOUT) { 130*0Sstevel@tonic-gate if ((rval = mod_unload(MD_MODULE)) == 0) { 131*0Sstevel@tonic-gate debug_printf("svm_stop(): mod_unload succeeded." 132*0Sstevel@tonic-gate " Time %d\n", timeval); 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate break; 135*0Sstevel@tonic-gate } 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate debug_printf("svm_stop(): mod_unload failed. Trying " 138*0Sstevel@tonic-gate "in %d s (%d)\n", sleep_int, timeval); 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate timeval += sleep_int; 141*0Sstevel@tonic-gate (void) sleep(sleep_int); 142*0Sstevel@tonic-gate metahalt(); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate if (rval != 0) { 146*0Sstevel@tonic-gate rval = RET_ERROR; 147*0Sstevel@tonic-gate debug_printf("svm_stop(): mod_unload FAILED!\n"); 148*0Sstevel@tonic-gate } 149*0Sstevel@tonic-gate } 150*0Sstevel@tonic-gate 151*0Sstevel@tonic-gate return (rval); 152*0Sstevel@tonic-gate } 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate /* 155*0Sstevel@tonic-gate * FUNCTION: get_rootmetadevice 156*0Sstevel@tonic-gate * parses the vfstab to return the metadevice 157*0Sstevel@tonic-gate * 158*0Sstevel@tonic-gate * INPUT: 159*0Sstevel@tonic-gate * mount point 160*0Sstevel@tonic-gate * mdname - pointer to string pointer that will contain the 161*0Sstevel@tonic-gate * metadevice name. Caller must free the allocated space. 162*0Sstevel@tonic-gate * RETURN VALUES: 163*0Sstevel@tonic-gate * mdname - md root device name 164*0Sstevel@tonic-gate * 0 - SUCCESS 165*0Sstevel@tonic-gate * !0 - FAIL 166*0Sstevel@tonic-gate * > 0 errno 167*0Sstevel@tonic-gate * RET_ERROR 168*0Sstevel@tonic-gate */ 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate int 171*0Sstevel@tonic-gate get_rootmetadevice(char *mntpath, char **mdname) 172*0Sstevel@tonic-gate { 173*0Sstevel@tonic-gate struct vfstab v; 174*0Sstevel@tonic-gate FILE *fp; 175*0Sstevel@tonic-gate int rval = RET_SUCCESS; 176*0Sstevel@tonic-gate char *cp; 177*0Sstevel@tonic-gate char vfstab_name[PATH_MAX + 1]; 178*0Sstevel@tonic-gate 179*0Sstevel@tonic-gate if (mdname == NULL) 180*0Sstevel@tonic-gate return (EINVAL); 181*0Sstevel@tonic-gate 182*0Sstevel@tonic-gate *mdname = NULL; 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate if (snprintf(vfstab_name, PATH_MAX + 1, "%s%s", mntpath, VFSTAB) < 0) 185*0Sstevel@tonic-gate return (ENOMEM); 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate debug_printf("get_rootmetadevice(): mntpath %s %s\n", mntpath, 188*0Sstevel@tonic-gate vfstab_name); 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate if ((fp = fopen(vfstab_name, "r")) == NULL) { 191*0Sstevel@tonic-gate rval = errno; 192*0Sstevel@tonic-gate return (rval); 193*0Sstevel@tonic-gate } 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate if ((rval = getvfsfile(fp, &v, ROOT_MNTPT)) != 0) { 196*0Sstevel@tonic-gate goto out; 197*0Sstevel@tonic-gate } 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate debug_printf("get_rootmetadevice(): vfs_special %s\n", v.vfs_special); 201*0Sstevel@tonic-gate if (strstr(v.vfs_special, ROOT_METADEVICE) == NULL) { 202*0Sstevel@tonic-gate /* md device not found */ 203*0Sstevel@tonic-gate rval = RET_ERROR; 204*0Sstevel@tonic-gate goto out; 205*0Sstevel@tonic-gate } 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate /* found a match fill it and return */ 208*0Sstevel@tonic-gate cp = v.vfs_special + strlen(ROOT_METADEVICE); 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate *mdname = (char *)malloc(strlen(cp) + 1); 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate if (*mdname == NULL) { 213*0Sstevel@tonic-gate rval = ENOMEM; 214*0Sstevel@tonic-gate goto out; 215*0Sstevel@tonic-gate } 216*0Sstevel@tonic-gate (void) strcpy(*mdname, cp); 217*0Sstevel@tonic-gate debug_printf("get_rootmetadevice(): *mdname %s rval %d\n", 218*0Sstevel@tonic-gate *mdname, rval); 219*0Sstevel@tonic-gate out: 220*0Sstevel@tonic-gate (void) fclose(fp); 221*0Sstevel@tonic-gate return (rval); 222*0Sstevel@tonic-gate } 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate /* 225*0Sstevel@tonic-gate * FUNCTION: create_diskset_links 226*0Sstevel@tonic-gate * Create the diskset name symlinks in /dev/md from the diskset 227*0Sstevel@tonic-gate * names found in the set records. These are normally created 228*0Sstevel@tonic-gate * in rpc.metad when you create the set but those symlinks are 229*0Sstevel@tonic-gate * sitting out on the real system disk and we're running off the 230*0Sstevel@tonic-gate * devfs that got created when we booted off the install image. 231*0Sstevel@tonic-gate */ 232*0Sstevel@tonic-gate 233*0Sstevel@tonic-gate void 234*0Sstevel@tonic-gate create_diskset_links() 235*0Sstevel@tonic-gate { 236*0Sstevel@tonic-gate int max_sets; 237*0Sstevel@tonic-gate int i; 238*0Sstevel@tonic-gate md_error_t error = mdnullerror; 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate /* 241*0Sstevel@tonic-gate * Resolve the function pointers for libsds_sc so that we can 242*0Sstevel@tonic-gate * snarf the set records. 243*0Sstevel@tonic-gate */ 244*0Sstevel@tonic-gate (void) sdssc_bind_library(); 245*0Sstevel@tonic-gate (void) init_metalib(); 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate if ((max_sets = get_max_sets(&error)) == 0) { 248*0Sstevel@tonic-gate debug_printf("create_diskset_links(): get_max_sets failed\n"); 249*0Sstevel@tonic-gate mdclrerror(&error); 250*0Sstevel@tonic-gate return; 251*0Sstevel@tonic-gate } 252*0Sstevel@tonic-gate 253*0Sstevel@tonic-gate for (i = 1; i < max_sets; i++) { 254*0Sstevel@tonic-gate md_set_record *sr; 255*0Sstevel@tonic-gate char setname[MAXPATHLEN]; 256*0Sstevel@tonic-gate char setnum[MAXPATHLEN]; 257*0Sstevel@tonic-gate 258*0Sstevel@tonic-gate if ((sr = metad_getsetbynum(i, &error)) == NULL) { 259*0Sstevel@tonic-gate mdclrerror(&error); 260*0Sstevel@tonic-gate continue; 261*0Sstevel@tonic-gate } 262*0Sstevel@tonic-gate 263*0Sstevel@tonic-gate (void) snprintf(setname, MAXPATHLEN, "/dev/md/%s", 264*0Sstevel@tonic-gate sr->sr_setname); 265*0Sstevel@tonic-gate (void) snprintf(setnum, MAXPATHLEN, "shared/%d", i); 266*0Sstevel@tonic-gate /* 267*0Sstevel@tonic-gate * Ignore failures to create the symlink. This could 268*0Sstevel@tonic-gate * happen because suninstall is restartable so the 269*0Sstevel@tonic-gate * symlink might have already been created. 270*0Sstevel@tonic-gate */ 271*0Sstevel@tonic-gate (void) symlink(setnum, setname); 272*0Sstevel@tonic-gate } 273*0Sstevel@tonic-gate } 274*0Sstevel@tonic-gate 275*0Sstevel@tonic-gate /* 276*0Sstevel@tonic-gate * FUNCTION: svm_alloc 277*0Sstevel@tonic-gate * Return a pointer to an opaque piece of zeroed memory. 278*0Sstevel@tonic-gate * 279*0Sstevel@tonic-gate * RETURN VALUES: 280*0Sstevel@tonic-gate * Non null - SUCCESS 281*0Sstevel@tonic-gate * NULL - FAIL 282*0Sstevel@tonic-gate */ 283*0Sstevel@tonic-gate 284*0Sstevel@tonic-gate svm_info_t * 285*0Sstevel@tonic-gate svm_alloc() 286*0Sstevel@tonic-gate { 287*0Sstevel@tonic-gate return ((svm_info_t *)calloc(1, sizeof (svm_info_t))); 288*0Sstevel@tonic-gate } 289*0Sstevel@tonic-gate 290*0Sstevel@tonic-gate /* 291*0Sstevel@tonic-gate * FUNCTION: svm_free 292*0Sstevel@tonic-gate * 293*0Sstevel@tonic-gate * INPUT: pointer to struct svm_info 294*0Sstevel@tonic-gate */ 295*0Sstevel@tonic-gate 296*0Sstevel@tonic-gate void 297*0Sstevel@tonic-gate svm_free(svm_info_t *svmp) 298*0Sstevel@tonic-gate { 299*0Sstevel@tonic-gate int i; 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate if (svmp == NULL) 302*0Sstevel@tonic-gate return; 303*0Sstevel@tonic-gate 304*0Sstevel@tonic-gate for (i = 0; i < svmp->count; i++) { 305*0Sstevel@tonic-gate free(svmp->md_comps[i]); 306*0Sstevel@tonic-gate } 307*0Sstevel@tonic-gate free(svmp->root_md); 308*0Sstevel@tonic-gate free(svmp); 309*0Sstevel@tonic-gate } 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate /* 312*0Sstevel@tonic-gate * FUNCTION: get_mdcomponents 313*0Sstevel@tonic-gate * Given "uname" metadevice, return the physical components 314*0Sstevel@tonic-gate * of that metadevice. 315*0Sstevel@tonic-gate * 316*0Sstevel@tonic-gate * INPUT: 317*0Sstevel@tonic-gate * uname - metadevice name 318*0Sstevel@tonic-gate * 319*0Sstevel@tonic-gate * RETURN VALUES: 320*0Sstevel@tonic-gate * svmp - structure containing md name and components 321*0Sstevel@tonic-gate * RET_SUCCESS 322*0Sstevel@tonic-gate * RET_ERROR 323*0Sstevel@tonic-gate * 324*0Sstevel@tonic-gate */ 325*0Sstevel@tonic-gate 326*0Sstevel@tonic-gate int 327*0Sstevel@tonic-gate get_mdcomponents(char *uname, svm_info_t **svmpp) 328*0Sstevel@tonic-gate { 329*0Sstevel@tonic-gate 330*0Sstevel@tonic-gate svm_info_t *svmp; 331*0Sstevel@tonic-gate md_error_t status, *ep; 332*0Sstevel@tonic-gate mdname_t *namep; 333*0Sstevel@tonic-gate mdnamelist_t *nlp = NULL; 334*0Sstevel@tonic-gate mdnamelist_t *p; 335*0Sstevel@tonic-gate mdsetname_t *sp = NULL; 336*0Sstevel@tonic-gate char *strp = NULL; 337*0Sstevel@tonic-gate int rval, cnt; 338*0Sstevel@tonic-gate 339*0Sstevel@tonic-gate rval = RET_SUCCESS; 340*0Sstevel@tonic-gate cnt = 0; 341*0Sstevel@tonic-gate status = mdnullerror; 342*0Sstevel@tonic-gate ep = &status; 343*0Sstevel@tonic-gate svmp = *svmpp; 344*0Sstevel@tonic-gate 345*0Sstevel@tonic-gate (void) init_metalib(); 346*0Sstevel@tonic-gate 347*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): Enter unit name %s\n", uname); 348*0Sstevel@tonic-gate 349*0Sstevel@tonic-gate if (((namep = metaname(&sp, uname, ep)) == NULL) || 350*0Sstevel@tonic-gate (metachkmeta(namep, ep) != 0)) { 351*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): " 352*0Sstevel@tonic-gate "metaname or metachkmeta failed\n"); 353*0Sstevel@tonic-gate mdclrerror(ep); 354*0Sstevel@tonic-gate return (RET_ERROR); 355*0Sstevel@tonic-gate } 356*0Sstevel@tonic-gate 357*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): meta_getdevs %s\n", namep->cname); 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate if ((meta_getdevs(sp, namep, &nlp, ep)) < 0) { 360*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): " 361*0Sstevel@tonic-gate "comp %s - meta_getdevs failed\n", uname); 362*0Sstevel@tonic-gate metafreenamelist(nlp); 363*0Sstevel@tonic-gate mdclrerror(ep); 364*0Sstevel@tonic-gate return (RET_ERROR); 365*0Sstevel@tonic-gate } 366*0Sstevel@tonic-gate 367*0Sstevel@tonic-gate /* compute the number of devices */ 368*0Sstevel@tonic-gate 369*0Sstevel@tonic-gate for (p = nlp, cnt = 0; p != NULL; p = p->next, cnt++) 370*0Sstevel@tonic-gate ; 371*0Sstevel@tonic-gate 372*0Sstevel@tonic-gate /* 373*0Sstevel@tonic-gate * Need to add n -1 components since slvmp already has space 374*0Sstevel@tonic-gate * for one device. 375*0Sstevel@tonic-gate */ 376*0Sstevel@tonic-gate 377*0Sstevel@tonic-gate svmp = (svm_info_t *)realloc(svmp, sizeof (svm_info_t) + 378*0Sstevel@tonic-gate (sizeof (char *) * (cnt - 1))); 379*0Sstevel@tonic-gate 380*0Sstevel@tonic-gate if (svmp == NULL) { 381*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): realloc of svmp failed\n"); 382*0Sstevel@tonic-gate metafreenamelist(nlp); 383*0Sstevel@tonic-gate return (RET_ERROR); 384*0Sstevel@tonic-gate } 385*0Sstevel@tonic-gate 386*0Sstevel@tonic-gate 387*0Sstevel@tonic-gate for (p = nlp, cnt = 0; p != NULL; p = p->next, cnt++) { 388*0Sstevel@tonic-gate mdname_t *devnp = p->namep; 389*0Sstevel@tonic-gate 390*0Sstevel@tonic-gate if ((strp = strdup(devnp->cname)) == NULL) { 391*0Sstevel@tonic-gate rval = RET_ERROR; 392*0Sstevel@tonic-gate break; 393*0Sstevel@tonic-gate } 394*0Sstevel@tonic-gate svmp->md_comps[cnt] = strp; 395*0Sstevel@tonic-gate } 396*0Sstevel@tonic-gate 397*0Sstevel@tonic-gate /* count is set to the number of devices in the list */ 398*0Sstevel@tonic-gate 399*0Sstevel@tonic-gate svmp->count = cnt; 400*0Sstevel@tonic-gate svmp->root_md = strdup(uname); 401*0Sstevel@tonic-gate if (rval == RET_SUCCESS && svmp->root_md != NULL) { 402*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): root_md %s count %d \n", 403*0Sstevel@tonic-gate svmp->root_md, svmp->count); 404*0Sstevel@tonic-gate for (cnt = 0; cnt < svmp->count; cnt++) 405*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): %s\n", 406*0Sstevel@tonic-gate svmp->md_comps[cnt]); 407*0Sstevel@tonic-gate } else { 408*0Sstevel@tonic-gate rval = RET_ERROR; 409*0Sstevel@tonic-gate svm_free(svmp); 410*0Sstevel@tonic-gate svmp = NULL; 411*0Sstevel@tonic-gate debug_printf("get_mdcomponents(): malloc failed\n"); 412*0Sstevel@tonic-gate 413*0Sstevel@tonic-gate } 414*0Sstevel@tonic-gate 415*0Sstevel@tonic-gate 416*0Sstevel@tonic-gate metafreenamelist(nlp); 417*0Sstevel@tonic-gate *svmpp = svmp; 418*0Sstevel@tonic-gate return (rval); 419*0Sstevel@tonic-gate } 420*0Sstevel@tonic-gate 421*0Sstevel@tonic-gate 422*0Sstevel@tonic-gate /* 423*0Sstevel@tonic-gate * FUNCTION: svm_get_components 424*0Sstevel@tonic-gate * return svm_infop with the components of a metadevice. 425*0Sstevel@tonic-gate * 426*0Sstevel@tonic-gate * INPUT: 427*0Sstevel@tonic-gate * md_device - eg. /dev/md/dsk/d10, /dev/md/foo/dsk/d10, or 428*0Sstevel@tonic-gate * /dev/md/shared/1/dsk/d10 429*0Sstevel@tonic-gate * 430*0Sstevel@tonic-gate * RETURN: 431*0Sstevel@tonic-gate * 0 - SUCCESS 432*0Sstevel@tonic-gate * !0 - FAIL 433*0Sstevel@tonic-gate */ 434*0Sstevel@tonic-gate 435*0Sstevel@tonic-gate int 436*0Sstevel@tonic-gate svm_get_components(char *md_device, svm_info_t **svmpp) 437*0Sstevel@tonic-gate { 438*0Sstevel@tonic-gate int len; 439*0Sstevel@tonic-gate 440*0Sstevel@tonic-gate /* 441*0Sstevel@tonic-gate * If this is a named diskset with a shared name 442*0Sstevel@tonic-gate * (e.g. /dev/md/shared/1/dsk/d10) call get_mdcomponents with 443*0Sstevel@tonic-gate * the diskset and metadevice name (e.g. foo/d10). 444*0Sstevel@tonic-gate * Otherwise this is a regular name (e.g. /dev/md/dsk/d10 or 445*0Sstevel@tonic-gate * /dev/md/foo/dsk/d10 or d10 or foo/d10) all of which 446*0Sstevel@tonic-gate * get_mdcomponents can handle directly. 447*0Sstevel@tonic-gate */ 448*0Sstevel@tonic-gate 449*0Sstevel@tonic-gate len = strlen("/dev/md/shared/"); 450*0Sstevel@tonic-gate if (strncmp(md_device, "/dev/md/shared/", len) == 0) { 451*0Sstevel@tonic-gate int numlen; 452*0Sstevel@tonic-gate int setnum; 453*0Sstevel@tonic-gate char *cp; 454*0Sstevel@tonic-gate char *slashp; 455*0Sstevel@tonic-gate char mdname[MAXPATHLEN]; 456*0Sstevel@tonic-gate mdsetname_t *sp; 457*0Sstevel@tonic-gate md_error_t error = mdnullerror; 458*0Sstevel@tonic-gate 459*0Sstevel@tonic-gate cp = md_device + len; 460*0Sstevel@tonic-gate 461*0Sstevel@tonic-gate if ((slashp = strstr(cp, "/")) == NULL) 462*0Sstevel@tonic-gate return (RET_ERROR); 463*0Sstevel@tonic-gate numlen = slashp - cp; 464*0Sstevel@tonic-gate if (numlen >= MAXPATHLEN - 1) 465*0Sstevel@tonic-gate return (RET_ERROR); 466*0Sstevel@tonic-gate 467*0Sstevel@tonic-gate (void) strlcpy(mdname, cp, numlen + 1); 468*0Sstevel@tonic-gate /* setnum now contains the diskset number */ 469*0Sstevel@tonic-gate setnum = atoi(mdname); 470*0Sstevel@tonic-gate if ((sp = metasetnosetname(setnum, &error)) == NULL || 471*0Sstevel@tonic-gate !mdisok(&error)) 472*0Sstevel@tonic-gate return (RET_ERROR); 473*0Sstevel@tonic-gate 474*0Sstevel@tonic-gate cp = slashp + 1; 475*0Sstevel@tonic-gate /* cp now pointing at dsk/... */ 476*0Sstevel@tonic-gate if ((slashp = strstr(cp, "/")) == NULL) 477*0Sstevel@tonic-gate return (RET_ERROR); 478*0Sstevel@tonic-gate 479*0Sstevel@tonic-gate (void) snprintf(mdname, MAXPATHLEN, "%s/%s", sp->setname, 480*0Sstevel@tonic-gate slashp + 1); 481*0Sstevel@tonic-gate /* mdname now contains diskset and metadevice name e.g. foo/d10 */ 482*0Sstevel@tonic-gate 483*0Sstevel@tonic-gate debug_printf("svm_get_components(): mdname %s\n", mdname); 484*0Sstevel@tonic-gate return (get_mdcomponents(mdname, svmpp)); 485*0Sstevel@tonic-gate 486*0Sstevel@tonic-gate } else { 487*0Sstevel@tonic-gate debug_printf("svm_get_components(): md_device %s\n", md_device); 488*0Sstevel@tonic-gate return (get_mdcomponents(md_device, svmpp)); 489*0Sstevel@tonic-gate } 490*0Sstevel@tonic-gate } 491