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 <fm/fmd_fmri.h> 30*0Sstevel@tonic-gate #include <libdevinfo.h> 31*0Sstevel@tonic-gate #include <alloca.h> 32*0Sstevel@tonic-gate #include <string.h> 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate /* 35*0Sstevel@tonic-gate * buf_append -- Append str to buf (if it's non-NULL). Place prepend 36*0Sstevel@tonic-gate * in buf in front of str and append behind it (if they're non-NULL). 37*0Sstevel@tonic-gate * Continue to update size even if we run out of space to actually 38*0Sstevel@tonic-gate * stuff characters in the buffer. 39*0Sstevel@tonic-gate */ 40*0Sstevel@tonic-gate static void 41*0Sstevel@tonic-gate buf_append(ssize_t *sz, char *buf, size_t buflen, char *str, 42*0Sstevel@tonic-gate char *prepend, char *append) 43*0Sstevel@tonic-gate { 44*0Sstevel@tonic-gate ssize_t left; 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate if (str == NULL) 47*0Sstevel@tonic-gate return; 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate if (buflen == 0 || (left = buflen - *sz) < 0) 50*0Sstevel@tonic-gate left = 0; 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate if (buf != NULL && left != 0) 53*0Sstevel@tonic-gate buf += *sz; 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate if (prepend == NULL && append == NULL) 56*0Sstevel@tonic-gate *sz += snprintf(buf, left, "%s", str); 57*0Sstevel@tonic-gate else if (append == NULL) 58*0Sstevel@tonic-gate *sz += snprintf(buf, left, "%s%s", prepend, str); 59*0Sstevel@tonic-gate else if (prepend == NULL) 60*0Sstevel@tonic-gate *sz += snprintf(buf, left, "%s%s", str, append); 61*0Sstevel@tonic-gate else 62*0Sstevel@tonic-gate *sz += snprintf(buf, left, "%s%s%s", prepend, str, append); 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate ssize_t 67*0Sstevel@tonic-gate fmd_fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen) 68*0Sstevel@tonic-gate { 69*0Sstevel@tonic-gate nvlist_t *anvl = NULL; 70*0Sstevel@tonic-gate uint8_t version; 71*0Sstevel@tonic-gate ssize_t size = 0; 72*0Sstevel@tonic-gate char *devid = NULL; 73*0Sstevel@tonic-gate char *devpath = NULL; 74*0Sstevel@tonic-gate char *achas = NULL; 75*0Sstevel@tonic-gate char *adom = NULL; 76*0Sstevel@tonic-gate char *aprod = NULL; 77*0Sstevel@tonic-gate char *asrvr = NULL; 78*0Sstevel@tonic-gate char *ahost = NULL; 79*0Sstevel@tonic-gate int more_auth = 0; 80*0Sstevel@tonic-gate int err; 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 || 83*0Sstevel@tonic-gate version > FM_DEV_SCHEME_VERSION) 84*0Sstevel@tonic-gate return (fmd_fmri_set_errno(EINVAL)); 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* Get authority, if present */ 87*0Sstevel@tonic-gate err = nvlist_lookup_nvlist(nvl, FM_FMRI_AUTHORITY, &anvl); 88*0Sstevel@tonic-gate if (err != 0 && err != ENOENT) 89*0Sstevel@tonic-gate return (fmd_fmri_set_errno(err)); 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate /* Get devid, if present */ 92*0Sstevel@tonic-gate err = nvlist_lookup_string(nvl, FM_FMRI_DEV_ID, &devid); 93*0Sstevel@tonic-gate if (err != 0 && err != ENOENT) 94*0Sstevel@tonic-gate return (fmd_fmri_set_errno(err)); 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate /* There must be a device path present */ 97*0Sstevel@tonic-gate err = nvlist_lookup_string(nvl, FM_FMRI_DEV_PATH, &devpath); 98*0Sstevel@tonic-gate if (err != 0 || devpath == NULL) 99*0Sstevel@tonic-gate return (fmd_fmri_set_errno(EINVAL)); 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate if (anvl != NULL) { 102*0Sstevel@tonic-gate (void) nvlist_lookup_string(anvl, 103*0Sstevel@tonic-gate FM_FMRI_AUTH_PRODUCT, &aprod); 104*0Sstevel@tonic-gate (void) nvlist_lookup_string(anvl, 105*0Sstevel@tonic-gate FM_FMRI_AUTH_CHASSIS, &achas); 106*0Sstevel@tonic-gate (void) nvlist_lookup_string(anvl, 107*0Sstevel@tonic-gate FM_FMRI_AUTH_DOMAIN, &adom); 108*0Sstevel@tonic-gate (void) nvlist_lookup_string(anvl, 109*0Sstevel@tonic-gate FM_FMRI_AUTH_SERVER, &asrvr); 110*0Sstevel@tonic-gate (void) nvlist_lookup_string(anvl, 111*0Sstevel@tonic-gate FM_FMRI_AUTH_HOST, &ahost); 112*0Sstevel@tonic-gate if (aprod != NULL) 113*0Sstevel@tonic-gate more_auth++; 114*0Sstevel@tonic-gate if (achas != NULL) 115*0Sstevel@tonic-gate more_auth++; 116*0Sstevel@tonic-gate if (adom != NULL) 117*0Sstevel@tonic-gate more_auth++; 118*0Sstevel@tonic-gate if (asrvr != NULL) 119*0Sstevel@tonic-gate more_auth++; 120*0Sstevel@tonic-gate if (ahost != NULL) 121*0Sstevel@tonic-gate more_auth++; 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate /* dev:// */ 125*0Sstevel@tonic-gate buf_append(&size, buf, buflen, FM_FMRI_SCHEME_DEV, NULL, "://"); 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate /* authority, if any */ 128*0Sstevel@tonic-gate if (aprod != NULL) 129*0Sstevel@tonic-gate buf_append(&size, buf, buflen, aprod, FM_FMRI_AUTH_PRODUCT "=", 130*0Sstevel@tonic-gate --more_auth > 0 ? "," : NULL); 131*0Sstevel@tonic-gate if (achas != NULL) 132*0Sstevel@tonic-gate buf_append(&size, buf, buflen, achas, FM_FMRI_AUTH_CHASSIS "=", 133*0Sstevel@tonic-gate --more_auth > 0 ? "," : NULL); 134*0Sstevel@tonic-gate if (adom != NULL) 135*0Sstevel@tonic-gate buf_append(&size, buf, buflen, adom, FM_FMRI_AUTH_DOMAIN "=", 136*0Sstevel@tonic-gate --more_auth > 0 ? "," : NULL); 137*0Sstevel@tonic-gate if (asrvr != NULL) 138*0Sstevel@tonic-gate buf_append(&size, buf, buflen, asrvr, FM_FMRI_AUTH_SERVER "=", 139*0Sstevel@tonic-gate --more_auth > 0 ? "," : NULL); 140*0Sstevel@tonic-gate if (ahost != NULL) 141*0Sstevel@tonic-gate buf_append(&size, buf, buflen, ahost, FM_FMRI_AUTH_HOST "=", 142*0Sstevel@tonic-gate NULL); 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate /* device-id part */ 145*0Sstevel@tonic-gate buf_append(&size, buf, buflen, devid, "/:" FM_FMRI_DEV_ID "=", NULL); 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate /* device-path part */ 148*0Sstevel@tonic-gate buf_append(&size, buf, buflen, devpath, "/", NULL); 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate return (size); 151*0Sstevel@tonic-gate } 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate /* 154*0Sstevel@tonic-gate * callback routine for di_walk_minor() 155*0Sstevel@tonic-gate */ 156*0Sstevel@tonic-gate struct walkinfo { 157*0Sstevel@tonic-gate int matched; 158*0Sstevel@tonic-gate const char *path; 159*0Sstevel@tonic-gate int len; 160*0Sstevel@tonic-gate }; 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate static int 163*0Sstevel@tonic-gate dev_match(di_node_t node, void *arg) 164*0Sstevel@tonic-gate { 165*0Sstevel@tonic-gate struct walkinfo *wip = (struct walkinfo *)arg; 166*0Sstevel@tonic-gate char *path = di_devfs_path(node); 167*0Sstevel@tonic-gate 168*0Sstevel@tonic-gate if (path != NULL && strncmp(path, wip->path, wip->len) == 0) { 169*0Sstevel@tonic-gate /* 170*0Sstevel@tonic-gate * found the match we were looking for, set matched 171*0Sstevel@tonic-gate * flag and terminate the walk. 172*0Sstevel@tonic-gate */ 173*0Sstevel@tonic-gate wip->matched = 1; 174*0Sstevel@tonic-gate di_devfs_path_free(path); 175*0Sstevel@tonic-gate return (DI_WALK_TERMINATE); 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate if (path != NULL) 179*0Sstevel@tonic-gate di_devfs_path_free(path); 180*0Sstevel@tonic-gate return (DI_WALK_CONTINUE); 181*0Sstevel@tonic-gate } 182*0Sstevel@tonic-gate 183*0Sstevel@tonic-gate /* 184*0Sstevel@tonic-gate * For now we only check for the presence of the device in the device 185*0Sstevel@tonic-gate * tree. This is somewhat unsophisticated, because a device may have 186*0Sstevel@tonic-gate * been inserted into the same slot as the previous ASRU and we don't 187*0Sstevel@tonic-gate * know how to tell them apart yet. 188*0Sstevel@tonic-gate */ 189*0Sstevel@tonic-gate int 190*0Sstevel@tonic-gate fmd_fmri_present(nvlist_t *nvl) 191*0Sstevel@tonic-gate { 192*0Sstevel@tonic-gate di_node_t parent; 193*0Sstevel@tonic-gate uint8_t version; 194*0Sstevel@tonic-gate char *devpath = NULL; 195*0Sstevel@tonic-gate char *parentpath; 196*0Sstevel@tonic-gate char *cp; 197*0Sstevel@tonic-gate struct walkinfo walkinfo; 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 || 200*0Sstevel@tonic-gate version > FM_DEV_SCHEME_VERSION || 201*0Sstevel@tonic-gate nvlist_lookup_string(nvl, FM_FMRI_DEV_PATH, &devpath) != 0) 202*0Sstevel@tonic-gate return (fmd_fmri_set_errno(EINVAL)); 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate if (devpath == NULL || (walkinfo.len = strlen(devpath)) == 0) 205*0Sstevel@tonic-gate return (fmd_fmri_set_errno(EINVAL)); 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate /* strip off last component of path */ 208*0Sstevel@tonic-gate parentpath = alloca(walkinfo.len + 1); 209*0Sstevel@tonic-gate (void) strcpy(parentpath, devpath); 210*0Sstevel@tonic-gate if ((cp = strrchr(parentpath, '/')) == NULL) 211*0Sstevel@tonic-gate parentpath = "/"; 212*0Sstevel@tonic-gate else 213*0Sstevel@tonic-gate *cp = '\0'; 214*0Sstevel@tonic-gate 215*0Sstevel@tonic-gate /* if the result is an empty path, start walk at "/" */ 216*0Sstevel@tonic-gate if (*parentpath == '\0') 217*0Sstevel@tonic-gate parentpath = "/"; 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate if ((parent = di_init(parentpath, DINFOSUBTREE)) == DI_NODE_NIL) 220*0Sstevel@tonic-gate return (errno == ENXIO ? 0 : -1); 221*0Sstevel@tonic-gate 222*0Sstevel@tonic-gate walkinfo.matched = 0; 223*0Sstevel@tonic-gate walkinfo.path = devpath; 224*0Sstevel@tonic-gate di_walk_node(parent, DI_WALK_SIBFIRST, (void *)&walkinfo, dev_match); 225*0Sstevel@tonic-gate di_fini(parent); 226*0Sstevel@tonic-gate 227*0Sstevel@tonic-gate return (walkinfo.matched); 228*0Sstevel@tonic-gate } 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate /* 231*0Sstevel@tonic-gate * We presently don't have a good indication of the usability of an 232*0Sstevel@tonic-gate * ASRU in the dev scheme, so we'll assume its usable. 233*0Sstevel@tonic-gate */ 234*0Sstevel@tonic-gate int 235*0Sstevel@tonic-gate fmd_fmri_unusable(nvlist_t *nvl) 236*0Sstevel@tonic-gate { 237*0Sstevel@tonic-gate uint8_t version; 238*0Sstevel@tonic-gate 239*0Sstevel@tonic-gate if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 || 240*0Sstevel@tonic-gate version > FM_DEV_SCHEME_VERSION) 241*0Sstevel@tonic-gate return (fmd_fmri_set_errno(EINVAL)); 242*0Sstevel@tonic-gate 243*0Sstevel@tonic-gate return (0); 244*0Sstevel@tonic-gate } 245