usr/src/cmd/devfsadm/sparc/misc_link_sparc.c

   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 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #include <regex.h>
  27 #include <devfsadm.h>
  28 #include <stdio.h>
  29 #include <strings.h>
  30 #include <stdlib.h>
  31 #include <limits.h>
  32 #include <sys/mkdev.h>
  33 #include <bsm/devalloc.h>
  34
  35 extern int system_labeled;
  36
  37
  38 static int ddi_other(di_minor_t minor, di_node_t node);
  39 static int diskette(di_minor_t minor, di_node_t node);
  40 static int ecpp_create(di_minor_t minor, di_node_t node);
  41 static int mc_node(di_minor_t minor, di_node_t node);
  42 static int starcat_sbbc_node(di_minor_t minor, di_node_t node);
  43 static int lom(di_minor_t minor, di_node_t node);
  44 static int ntwdt_create(di_minor_t minor, di_node_t node);
  45 static int bmc(di_minor_t minor, di_node_t node);
  46
  47 static devfsadm_create_t misc_cbt[] = {
  48         { "other", "ddi_other", NULL,
  49             TYPE_EXACT, ILEVEL_0, ddi_other
  50         },
  51         { "memory-controller", "ddi_mem_ctrl", NULL,
  52             TYPE_EXACT, ILEVEL_0, mc_node
  53         },
  54         { "pseudo", "ddi_pseudo", "sbbc",
  55             TYPE_EXACT | DRV_EXACT, ILEVEL_1, starcat_sbbc_node
  56         },
  57         { "disk",  "ddi_block:diskette", NULL,
  58             TYPE_EXACT, ILEVEL_1, diskette
  59         },
  60         { "printer",  "ddi_printer", NULL,
  61             TYPE_EXACT, ILEVEL_1, ecpp_create
  62         },
  63         { "pseudo", "ddi_pseudo", "lw8",
  64             TYPE_EXACT | DRV_EXACT, ILEVEL_0, lom
  65         },
  66         { "pseudo", "ddi_pseudo", "ntwdt",
  67             TYPE_EXACT | DRV_EXACT, ILEVEL_0, ntwdt_create
  68         },
  69         { "pseudo", "ddi_pseudo", "bmc",
  70             TYPE_EXACT | DRV_EXACT, ILEVEL_0, bmc
  71         }
  72 };
  73
  74 DEVFSADM_CREATE_INIT_V0(misc_cbt);
  75
  76
  77 /*
  78  * Handles minor node type "ddi_other"
  79  * type=ddi_other;name=SUNW,pmc    pmc
  80  * type=ddi_other;name=SUNW,mic    mic\M0
  81  */
  82 static int
  83 ddi_other(di_minor_t minor, di_node_t node)
  84 {
  85         char path[PATH_MAX + 1];
  86         char *nn = di_node_name(node);
  87         char *mn = di_minor_name(minor);
  88
  89         if (strcmp(nn, "SUNW,pmc") == 0) {
  90                 (void) devfsadm_mklink("pcm", node, minor, 0);
  91         } else if (strcmp(nn, "SUNW,mic") == 0) {
  92                 (void) strcpy(path, "mic");
  93                 (void) strcat(path, mn);
  94                 (void) devfsadm_mklink(path, node, minor, 0);
  95         }
  96
  97         return (DEVFSADM_CONTINUE);
  98 }
  99
 100 /*
 101  * This function is called for diskette nodes
 102  */
 103 static int
 104 diskette(di_minor_t minor, di_node_t node)
 105 {
 106         int     flags = 0;
 107         char    *mn = di_minor_name(minor);
 108
 109         if (system_labeled)
 110                 flags = DA_ADD|DA_FLOPPY;
 111
 112         if (strcmp(mn, "c") == 0) {
 113                 (void) devfsadm_mklink("diskette", node, minor, flags);
 114                 (void) devfsadm_mklink("diskette0", node, minor, flags);
 115
 116         } else if (strcmp(mn, "c,raw") == 0) {
 117                 (void) devfsadm_mklink("rdiskette", node, minor, flags);
 118                 (void) devfsadm_mklink("rdiskette0", node, minor, flags);
 119
 120         }
 121         return (DEVFSADM_CONTINUE);
 122 }
 123
 124 /*
 125  * Handles links of the form:
 126  * type=ddi_printer;name=ecpp  ecpp\N0
 127  */
 128 static int
 129 ecpp_create(di_minor_t minor, di_node_t node)
 130 {
 131         char *buf;
 132         char path[PATH_MAX + 1];
 133         devfsadm_enumerate_t rules[1] = {"^ecpp([0-9]+)$", 1, MATCH_ALL};
 134
 135         if (strcmp(di_driver_name(node), "ecpp") != 0) {
 136                 return (DEVFSADM_CONTINUE);
 137         }
 138
 139         if ((buf = di_devfs_path(node)) == NULL) {
 140                 return (DEVFSADM_CONTINUE);
 141         }
 142
 143         (void) snprintf(path, sizeof (path), "%s:%s",
 144             buf, di_minor_name(minor));
 145
 146         di_devfs_path_free(buf);
 147
 148         if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
 149                 return (DEVFSADM_CONTINUE);
 150         }
 151
 152         (void) snprintf(path, sizeof (path), "ecpp%s", buf);
 153         free(buf);
 154
 155         (void) devfsadm_mklink(path, node, minor, 0);
 156         return (DEVFSADM_CONTINUE);
 157 }
 158
 159 /* Rules for memory controller */
 160 static devfsadm_enumerate_t mc_rules[1] =
 161         {"^mc$/^mc([0-9]+)$", 1, MATCH_ALL};
 162
 163
 164 static int
 165 mc_node(di_minor_t minor, di_node_t node)
 166 {
 167         char path[PATH_MAX], l_path[PATH_MAX], *buf, *devfspath;
 168         char *minor_nm;
 169
 170         minor_nm = di_minor_name(minor);
 171
 172         if (minor_nm == NULL) {
 173                 return (DEVFSADM_CONTINUE);
 174         }
 175
 176         devfspath = di_devfs_path(node);
 177
 178         (void) strcpy(path, devfspath);
 179         (void) strcat(path, ":");
 180         (void) strcat(path, minor_nm);
 181         di_devfs_path_free(devfspath);
 182
 183         /* build the physical path from the components */
 184         if (devfsadm_enumerate_int(path, 0, &buf, mc_rules, 1)) {
 185                 return (DEVFSADM_CONTINUE);
 186         }
 187
 188         (void) strcpy(l_path, "mc/mc");
 189         (void) strcat(l_path, buf);
 190
 191         free(buf);
 192
 193         (void) devfsadm_mklink(l_path, node, minor, 0);
 194         return (DEVFSADM_CONTINUE);
 195 }
 196
 197
 198 /*
 199  * Starcat sbbc node.  We only really care about generating a /dev
 200  * link for the lone sbbc on the SC (as opposed to the potentially
 201  * numerous sbbcs on the domain), so only operate on instance 0.
 202  */
 203 static int
 204 starcat_sbbc_node(di_minor_t minor, di_node_t node)
 205 {
 206         char *mn;
 207
 208         if (di_instance(node) == 0) {
 209                 mn = di_minor_name(minor);
 210                 (void) devfsadm_mklink(mn, node, minor, 0);
 211         }
 212         return (DEVFSADM_CONTINUE);
 213
 214 }
 215
 216 /*
 217  * Creates /dev/lom nodes for Platform Specific lom driver
 218  */
 219 static int
 220 lom(di_minor_t minor, di_node_t node)
 221 {
 222         (void) devfsadm_mklink("lom", node, minor, 0);
 223         return (DEVFSADM_CONTINUE);
 224 }
 225
 226 /*
 227  * Creates /dev/ntwdt nodes for Platform Specific ntwdt driver
 228  */
 229 static int
 230 ntwdt_create(di_minor_t minor, di_node_t node)
 231 {
 232         (void) devfsadm_mklink("ntwdt", node, minor, 0);
 233         return (DEVFSADM_CONTINUE);
 234 }
 235
 236 /*
 237  * Creates /dev/bmc node.
 238  */
 239 static int
 240 bmc(di_minor_t minor, di_node_t node)
 241 {
 242         (void) devfsadm_mklink("bmc", node, minor, 0);
 243         return (DEVFSADM_CONTINUE);
 244 }