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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _DEVFSADM_H 27 #define _DEVFSADM_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/types.h> 32 #include <libdevinfo.h> 33 #include <sys/devinfo_impl.h> 34 #include <regex.h> 35 36 #undef DEBUG 37 #ifndef DEBUG 38 #define NDEBUG 1 39 #else 40 #undef NDEBUG 41 #endif 42 43 #include <assert.h> 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 #define DEVFSADM_SUCCESS 0 50 #define DEVFSADM_FAILURE -1 51 #define DEVFSADM_MULTIPLE -2 52 #define DEVFSADM_TRUE 0 53 #define DEVFSADM_FALSE -1 54 55 #define ILEVEL_0 0 56 #define ILEVEL_1 1 57 #define ILEVEL_2 2 58 #define ILEVEL_3 3 59 #define ILEVEL_4 4 60 #define ILEVEL_5 5 61 #define ILEVEL_6 6 62 #define ILEVEL_7 7 63 #define ILEVEL_8 8 64 #define ILEVEL_9 9 65 66 #define DEVFSADM_V0 0 67 #define DEVFSADM_V1 1 68 69 #define DEVFSADM_CONTINUE 0 70 #define DEVFSADM_TERMINATE 1 71 72 #define INTEGER 0 73 #define CHARACTER 1 74 75 #define RM_HOT 0x01 76 #define RM_PRE 0x02 77 #define RM_POST 0x04 78 #define RM_ALWAYS 0x08 79 #define RM_NOINTERPOSE 0x10 80 81 #define TYPE_EXACT 0x01 82 #define TYPE_RE 0x02 83 #define TYPE_PARTIAL 0x04 84 #define TYPE_MASK 0x07 85 #define DRV_EXACT 0x10 86 #define DRV_RE 0x20 87 #define DRV_MASK 0x30 88 #define CREATE_DEFER 0x100 89 #define CREATE_MASK 0x100 90 91 /* command to start daemon */ 92 #define DEVFSADMD_START_PATH "/usr/lib/devfsadm/devfsadmd" 93 #define DEVFSADMD_START "devfsadmd" 94 95 /* devfsadm event service door */ 96 #define DEVFSADM_SERVICE_DOOR "/etc/sysevent/devfsadm_event_channel" 97 #define DEVNAME_LOOKUP_DOOR ".devname_lookup_door" 98 99 /* /dev device name binding rule locations */ 100 #define DEVNAME_MASTER_MAP "/etc/dev/devname_master" 101 102 /* File of reserved devnames */ 103 #define ENUMERATE_RESERVED "/etc/dev/reserved_devnames" 104 105 /* flags for devfsadm_mklink */ 106 #define DEV_SYNC 0x02 /* synchronous mklink */ 107 108 #define INFO_MID NULL /* always prints */ 109 #define VERBOSE_MID "verbose" /* prints with -v */ 110 #define CHATTY_MID "chatty" /* prints with -V chatty */ 111 112 typedef struct devfsadm_create { 113 char *device_class; /* eg "disk", "tape", "display" */ 114 char *node_type; /* eg DDI_NT_TAPE, DDI_NT_BLOCK, etc */ 115 char *drv_name; /* eg sd, ssd */ 116 int flags; /* TYPE_{EXACT,RE,PARTIAL}, DRV_{EXACT,RE} */ 117 int interpose_lvl; /* eg ILEVEL_0.. ILEVEL_10 */ 118 int (*callback_fcn)(di_minor_t minor, di_node_t node); 119 } devfsadm_create_t; 120 121 typedef struct devfsadm_remove { 122 char *device_class; /* eg "disk", "tape", "display" */ 123 char *dev_dirs_re; /* dev dirs regex selector */ 124 int flags; /* eg POST, PRE, HOT, ALWAYS */ 125 int interpose_lvl; /* eg ILEVEL_0 .. ILEVEL_10 */ 126 void (*callback_fcn)(char *); 127 } devfsadm_remove_t; 128 129 typedef struct devfsadm_remove_V1 { 130 char *device_class; /* eg "disk", "tape", "display" */ 131 char *dev_dirs_re; /* dev dirs regex selector */ 132 int flags; /* eg POST, PRE, HOT, ALWAYS */ 133 int interpose_lvl; /* eg ILEVEL_0 .. ILEVEL_10 */ 134 int (*callback_fcn)(char *); 135 } devfsadm_remove_V1_t; 136 137 typedef struct _devfsadm_create_reg { 138 uint_t version; 139 uint_t count; /* number of node type registration */ 140 /* structures */ 141 devfsadm_create_t *tblp; 142 } _devfsadm_create_reg_t; 143 144 typedef struct _devfsadm_remove_reg { 145 uint_t version; 146 uint_t count; /* number of node type registration */ 147 /* structures */ 148 devfsadm_remove_t *tblp; 149 } _devfsadm_remove_reg_t; 150 151 typedef struct _devfsadm_remove_reg_V1 { 152 uint_t version; 153 uint_t count; /* number of node type registration */ 154 /* structures */ 155 devfsadm_remove_V1_t *tblp; 156 } _devfsadm_remove_reg_V1_t; 157 /* 158 * "flags" in the devfs_enumerate structure can take the following values. 159 * These values specify the substring of devfs path to be used for 160 * enumeration. Components (see MATCH_ADDR/MATCH_MINOR) may be specified 161 * by using the "match_arg" member in the devfsadm_enumerate structure. 162 */ 163 #define MATCH_ALL 0x001 /* Match entire devfs path */ 164 #define MATCH_PARENT 0x002 /* Match upto last '/' in devfs path */ 165 #define MATCH_ADDR 0x004 /* Match upto nth component of last address */ 166 #define MATCH_MINOR 0x008 /* Match upto nth component of minor name */ 167 #define MATCH_CALLBACK 0x010 /* Use callback to derive match string */ 168 169 /* 170 * The following flags are private to devfsadm and the disks module. 171 * NOT to be used by other modules. 172 */ 173 #define MATCH_NODE 0x020 174 #define MATCH_MASK 0x03F 175 #define MATCH_UNCACHED 0x040 /* retry flags for disks module */ 176 177 typedef struct devfsadm_enumerate { 178 char *re; 179 int subexp; 180 uint_t flags; 181 char *match_arg; 182 char *(*sel_fcn)(const char *path, void *cb_arg); 183 void *cb_arg; 184 } devfsadm_enumerate_t; 185 186 #define DEVFSADM_CREATE_INIT_V0(tbl) \ 187 _devfsadm_create_reg_t _devfsadm_create_reg = { \ 188 DEVFSADM_V0, \ 189 (sizeof (tbl) / sizeof (devfsadm_create_t)), \ 190 ((devfsadm_create_t *)(tbl)) } 191 192 #define DEVFSADM_REMOVE_INIT_V0(tbl)\ 193 _devfsadm_remove_reg_t _devfsadm_remove_reg = {\ 194 DEVFSADM_V0, \ 195 (sizeof (tbl) / sizeof (devfsadm_remove_t)), \ 196 ((devfsadm_remove_t *)(tbl)) } 197 198 #define DEVFSADM_REMOVE_INIT_V1(tbl)\ 199 _devfsadm_remove_reg_V1_t _devfsadm_remove_reg = {\ 200 DEVFSADM_V1, \ 201 (sizeof (tbl) / sizeof (devfsadm_remove_V1_t)), \ 202 ((devfsadm_remove_V1_t *)(tbl)) } 203 204 /* reserved devname support */ 205 typedef struct devlink_re { 206 char *d_re; 207 int d_subexp; 208 regex_t d_rcomp; 209 regmatch_t *d_pmatch; 210 } devlink_re_t; 211 212 typedef struct enumerate_file { 213 char *er_file; 214 char *er_id; 215 struct enumerate_file *er_next; 216 } enumerate_file_t; 217 218 int devfsadm_noupdate(void); 219 const char *devfsadm_root_path(void); 220 int devfsadm_link_valid(char *link); 221 int devfsadm_mklink(char *link, di_node_t node, di_minor_t minor, int flags); 222 int devfsadm_secondary_link(char *link, char *primary_link, int flags); 223 void devfsadm_rm_link(char *file); 224 void devfsadm_rm_all(char *file); 225 void devfsadm_rm_stale_links(char *dir_re, char *valid_link, di_node_t node, 226 di_minor_t minor); 227 void devfsadm_errprint(char *message, ...); 228 void devfsadm_print(char *mid, char *message, ...); 229 int devfsadm_enumerate_int(char *devfs_path, int index, char **buf, 230 devfsadm_enumerate_t rules[], int nrules); 231 int devfsadm_enumerate_char(char *devfs_path, int index, char **buf, 232 devfsadm_enumerate_t rules[], int nrules); 233 char **devfsadm_lookup_dev_names(char *phys_path, char *re, int *lenp); 234 void devfsadm_free_dev_names(char **dev_names, int len); 235 236 /* devlink cache related */ 237 di_devlink_handle_t devfsadm_devlink_cache(void); 238 239 /* 240 * Private enumerate interface for disks and sgen modules 241 */ 242 int disk_enumerate_int(char *devfs_path, int index, char **buf, 243 devfsadm_enumerate_t rules[], int nrules); 244 /* 245 * Private interfaces for ports module (port_link.c). 246 */ 247 int devfsadm_enumerate_char_start(char *devfs_path, int index, 248 char **buf, devfsadm_enumerate_t rules[], int nrules, char *start); 249 int devfsadm_read_link(char *link, char **devfs_path); 250 char *s_strdup(const char *ptr); 251 252 /* Private interface between reserve subsystm and disks link generator */ 253 int devfsadm_have_reserved(void); 254 int devfsadm_is_reserved(devlink_re_t re_array[], char *devlink); 255 int devfsadm_reserve_id_cache(devlink_re_t re_array[], enumerate_file_t *head); 256 257 #ifdef __cplusplus 258 } 259 #endif 260 261 #endif /* _DEVFSADM_H */ 262