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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <sys/modctl.h> 28 #include <sys/sunddi.h> 29 30 /* internal global data */ 31 static struct modlmisc modlmisc = { 32 &mod_miscops, "bootdev misc module" 33 }; 34 35 static struct modlinkage modlinkage = { 36 MODREV_1, (void *)&modlmisc, NULL 37 }; 38 39 int 40 _init() 41 { 42 return (mod_install(&modlinkage)); 43 } 44 45 int 46 _fini() 47 { 48 return (mod_remove(&modlinkage)); 49 } 50 51 int 52 _info(struct modinfo *modinfop) 53 { 54 return (mod_info(&modlinkage, modinfop)); 55 } 56 57 /* 58 * convert a prom device path to an equivalent path in /devices 59 * Does not deal with aliases. Does deal with pathnames which 60 * are not fully qualified. This routine is generalized 61 * to work across several flavors of OBP 62 */ 63 int 64 i_promname_to_devname(char *prom_name, char *ret_buf) 65 { 66 if (prom_name == NULL || ret_buf == NULL || 67 (strlen(prom_name) >= MAXPATHLEN)) { 68 return (EINVAL); 69 } 70 if (i_ddi_prompath_to_devfspath(prom_name, ret_buf) != DDI_SUCCESS) 71 return (EINVAL); 72 73 return (0); 74 } 75 76 /* 77 * If bootstring contains a device path, we need to convert to a format 78 * the prom will understand. To do so, we convert the existing path to 79 * a prom-compatible path and return the value of new_path. If the 80 * caller specifies new_path as NULL, we allocate an appropriately 81 * sized new_path on behalf of the caller. If the caller invokes this 82 * function with new_path = NULL, they must do so from a context in 83 * which it is safe to perform a sleeping memory allocation. 84 * 85 * NOTE: Intel does not have a real PROM, so the implementation 86 * simply returns a copy of the string passed in. 87 */ 88 char * 89 i_convert_boot_device_name(char *cur_path, char *new_path, size_t *len) 90 { 91 if (new_path != NULL) { 92 (void) snprintf(new_path, *len, "%s", cur_path); 93 return (new_path); 94 } else { 95 *len = strlen(cur_path) + 1; 96 new_path = kmem_alloc(*len, KM_SLEEP); 97 (void) snprintf(new_path, *len, "%s", cur_path); 98 return (new_path); 99 } 100 } 101