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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/modctl.h> 30 #include <sys/sunddi.h> 31 32 /* internal global data */ 33 static struct modlmisc modlmisc = { 34 &mod_miscops, "bootdev misc module %I%" 35 }; 36 37 static struct modlinkage modlinkage = { 38 MODREV_1, (void *)&modlmisc, NULL 39 }; 40 41 int 42 _init() 43 { 44 return (mod_install(&modlinkage)); 45 } 46 47 int 48 _fini() 49 { 50 return (mod_remove(&modlinkage)); 51 } 52 53 int 54 _info(struct modinfo *modinfop) 55 { 56 return (mod_info(&modlinkage, modinfop)); 57 } 58 59 /* 60 * convert a prom device path to an equivalent path in /devices 61 * Does not deal with aliases. Does deal with pathnames which 62 * are not fully qualified. This routine is generalized 63 * to work across several flavors of OBP 64 */ 65 int 66 i_promname_to_devname(char *prom_name, char *ret_buf) 67 { 68 if (prom_name == NULL || ret_buf == NULL || 69 (strlen(prom_name) >= MAXPATHLEN)) { 70 return (EINVAL); 71 } 72 if (i_ddi_prompath_to_devfspath(prom_name, ret_buf) != DDI_SUCCESS) 73 return (EINVAL); 74 75 return (0); 76 } 77 78 /* 79 * If bootstring contains a device path, we need to convert to a format 80 * the prom will understand. To do so, we convert the existing path to 81 * a prom-compatible path and return the value of new_path. If the 82 * caller specifies new_path as NULL, we allocate an appropriately 83 * sized new_path on behalf of the caller. If the caller invokes this 84 * function with new_path = NULL, they must do so from a context in 85 * which it is safe to perform a sleeping memory allocation. 86 * 87 * NOTE: Intel does not have a real PROM, so the implementation 88 * simply returns a copy of the string passed in. 89 */ 90 char * 91 i_convert_boot_device_name(char *cur_path, char *new_path, size_t *len) 92 { 93 if (new_path != NULL) { 94 (void) snprintf(new_path, *len, "%s", cur_path); 95 return (new_path); 96 } else { 97 *len = strlen(cur_path) + 1; 98 new_path = kmem_alloc(*len, KM_SLEEP); 99 (void) snprintf(new_path, *len, "%s", cur_path); 100 return (new_path); 101 } 102 } 103