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 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <sys/types.h> 28 #include <errno.h> 29 #include <malloc.h> 30 #include <mdesc.h> 31 #include <pri.h> 32 #include "priplugin.h" 33 34 static void pri_free(void *bufp, size_t size); 35 static uint64_t *md_bufp = NULL; 36 static uint64_t *new_md_bufp; 37 38 int 39 pri_devinit(uint64_t *tok) 40 { 41 int status; 42 43 new_md_bufp = NULL; 44 status = 0; 45 if (pri_get(PRI_WAITGET, tok, &new_md_bufp, malloc, pri_free) == 46 (ssize_t)-1) { 47 pri_debug(LOG_NOTICE, "pri_devinit: can'r read from " 48 "the PRI: %d\n", errno); 49 status = -1; 50 } 51 if (new_md_bufp == NULL) { 52 pri_debug(LOG_NOTICE, "pri_devinit: pri_get returned " 53 "NULL buffer!\n"); 54 status = -1; 55 } 56 return (status); 57 } 58 59 md_t * 60 pri_bufinit(md_t *mdp) 61 { 62 63 if (mdp) 64 md_fini(mdp); 65 if (md_bufp) 66 free(md_bufp); 67 md_bufp = new_md_bufp; 68 69 pri_debug(LOG_NOTICE, "pri_bufinit: done reading PRI\n"); 70 71 /* 72 * The PRI and the MD use the same data format so they can be 73 * parsed by the same functions. 74 */ 75 if (md_bufp) { 76 mdp = md_init_intern(md_bufp, malloc, pri_free); 77 if (mdp == NULL) { 78 pri_debug(LOG_NOTICE, "pri_bufinit: md_init_intern " 79 "failed\n"); 80 free(md_bufp); 81 md_bufp = NULL; 82 } else { 83 pri_debug(LOG_NOTICE, "pri_bufinit: mdi_init_intern " 84 "completed successfully\n"); 85 } 86 } else 87 mdp = NULL; 88 89 pri_debug(LOG_NOTICE, "pri_bufinit: returning\n"); 90 91 return (mdp); 92 } 93 94 /*ARGSUSED*/ 95 static void 96 pri_free(void *bufp, size_t size) 97 { 98 if (bufp) 99 free(bufp); 100 } 101 102 void 103 pri_devfini(md_t *mdp) 104 { 105 if (mdp) 106 (void) md_fini(mdp); 107 108 if (md_bufp) 109 free(md_bufp); 110 md_bufp = NULL; 111 } 112