1 /* $OpenBSD: ophandlers.c,v 1.4 1996/08/31 13:12:12 deraadt Exp $ */ 2 /* $NetBSD: ophandlers.c,v 1.2 1996/02/28 01:13:30 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1996 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE 31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/types.h> 41 #include <sys/ioctl.h> 42 #include <err.h> 43 #include <errno.h> 44 #include <fcntl.h> 45 #include <string.h> 46 #include <stdio.h> 47 #include <string.h> 48 49 #include <machine/eeprom.h> 50 #include <machine/openpromio.h> 51 52 #include "defs.h" 53 54 extern char *path_openprom; 55 extern int eval; 56 extern int verbose; 57 58 static char err_str[BUFSIZE]; 59 60 static void op_notsupp __P((struct extabent *, struct opiocdesc *, char *)); 61 62 /* 63 * There are several known fields that I either don't know how to 64 * deal with or require special treatment. 65 */ 66 static struct extabent opextab[] = { 67 { "security-password", op_notsupp }, 68 { "security-mode", op_notsupp }, 69 { "oem-logo", op_notsupp }, 70 { NULL, op_notsupp }, 71 }; 72 73 #define BARF(str1, str2) { \ 74 snprintf(err_str, sizeof err_str, "%s: %s", (str1), (str2)); \ 75 ++eval; \ 76 return (err_str); \ 77 }; 78 79 char * 80 op_handler(keyword, arg) 81 char *keyword, *arg; 82 { 83 struct opiocdesc opio; 84 struct extabent *ex; 85 char opio_buf[BUFSIZE]; 86 int fd, optnode; 87 88 if ((fd = open(path_openprom, arg ? O_RDWR : O_RDONLY, 0640)) < 0) 89 BARF(path_openprom, strerror(errno)); 90 91 /* Check to see if it's a special-case keyword. */ 92 for (ex = opextab; ex->ex_keyword != NULL; ++ex) 93 if (strcmp(ex->ex_keyword, keyword) == 0) 94 break; 95 96 if (ioctl(fd, OPIOCGETOPTNODE, (char *)&optnode) < 0) 97 BARF("OPIOCGETOPTNODE", strerror(errno)); 98 99 bzero(&opio_buf[0], sizeof(opio_buf)); 100 bzero(&opio, sizeof(opio)); 101 opio.op_nodeid = optnode; 102 opio.op_name = keyword; 103 opio.op_namelen = strlen(opio.op_name); 104 105 if (arg) { 106 if (verbose) { 107 printf("old: "); 108 109 opio.op_buf = &opio_buf[0]; 110 opio.op_buflen = sizeof(opio_buf); 111 if (ioctl(fd, OPIOCGET, (char *)&opio) < 0) 112 BARF("OPIOCGET", strerror(errno)); 113 114 if (opio.op_buflen <= 0) { 115 printf("nothing available for %s\n"); 116 goto out; 117 } 118 119 if (ex->ex_keyword != NULL) 120 (*ex->ex_handler)(ex, &opio, NULL); 121 else 122 printf("%s\n", opio.op_buf); 123 } 124 out: 125 if (ex->ex_keyword != NULL) 126 (*ex->ex_handler)(ex, &opio, arg); 127 else { 128 opio.op_buf = arg; 129 opio.op_buflen = strlen(arg); 130 } 131 132 if (ioctl(fd, OPIOCSET, (char *)&opio) < 0) 133 BARF("invalid keyword", keyword); 134 135 if (verbose) { 136 printf("new: "); 137 if (ex->ex_keyword != NULL) 138 (*ex->ex_handler)(ex, &opio, NULL); 139 else 140 printf("%s\n", opio.op_buf); 141 } 142 } else { 143 opio.op_buf = &opio_buf[0]; 144 opio.op_buflen = sizeof(opio_buf); 145 if (ioctl(fd, OPIOCGET, (char *)&opio) < 0) 146 BARF("OPIOCGET", strerror(errno)); 147 148 if (opio.op_buflen <= 0) { 149 snprintf(err_str, sizeof err_str, 150 "nothing available for %s", 151 keyword); 152 return (err_str); 153 } 154 155 if (ex->ex_keyword != NULL) 156 (*ex->ex_handler)(ex, &opio, NULL); 157 else 158 printf("%s=%s\n", keyword, opio.op_buf); 159 } 160 161 (void)close(fd); 162 return (NULL); 163 } 164 165 /* ARGSUSED */ 166 static void 167 op_notsupp(exent, opiop, arg) 168 struct extabent *exent; 169 struct opiocdesc *opiop; 170 char *arg; 171 { 172 173 warnx("property `%s' not yet supported", exent->ex_keyword); 174 } 175 176 /* 177 * XXX: This code is quite ugly. You have been warned. 178 * (Really! This is the only way I could get it to work!) 179 */ 180 void 181 op_dump() 182 { 183 struct opiocdesc opio1, opio2; 184 struct extabent *ex; 185 char buf1[BUFSIZE], buf2[BUFSIZE], buf3[BUFSIZE], buf4[BUFSIZE]; 186 int fd, optnode; 187 188 if ((fd = open(path_openprom, O_RDONLY, 0640)) < 0) 189 err(1, "open: %s", path_openprom); 190 191 if (ioctl(fd, OPIOCGETOPTNODE, (char *)&optnode) < 0) 192 err(1, "OPIOCGETOPTNODE"); 193 194 bzero(&opio1, sizeof(opio1)); 195 196 /* This will grab the first property name from OPIOCNEXTPROP. */ 197 bzero(buf1, sizeof(buf1)); 198 bzero(buf2, sizeof(buf2)); 199 200 opio1.op_nodeid = opio2.op_nodeid = optnode; 201 202 opio1.op_name = buf1; 203 opio1.op_buf = buf2; 204 205 opio2.op_name = buf3; 206 opio2.op_buf = buf4; 207 208 /* 209 * For reference: opio1 is for obtaining the name. Pass the 210 * name of the last property read in op_name, and the next one 211 * will be returned in op_buf. To get the first name, pass 212 * an empty string. There are no more properties when an 213 * empty string is returned. 214 * 215 * opio2 is for obtaining the value associated with that name. 216 * For some crazy reason, it seems as if we need to do all 217 * of that gratuitious zapping and copying. *sigh* 218 */ 219 for (;;) { 220 opio1.op_namelen = strlen(opio1.op_name); 221 opio1.op_buflen = sizeof(buf2); 222 223 if (ioctl(fd, OPIOCNEXTPROP, (char *)&opio1) < 0) 224 err(1, "ioctl: OPIOCNEXTPROP"); 225 226 /* 227 * The name of the property we wish to get the 228 * value for has been stored in the value field 229 * of opio1. If the length of the name is 0, there 230 * are no more properties left. 231 */ 232 sprintf(opio2.op_name, opio1.op_buf); 233 opio2.op_namelen = strlen(opio2.op_name); 234 235 if (opio2.op_namelen == 0) { 236 (void)close(fd); 237 return; 238 } 239 240 bzero(opio2.op_buf, sizeof(buf4)); 241 opio2.op_buflen = sizeof(buf4); 242 243 if (ioctl(fd, OPIOCGET, (char *)&opio2) < 0) 244 err(1, "ioctl: OPIOCGET"); 245 246 for (ex = opextab; ex->ex_keyword != NULL; ++ex) 247 if (strcmp(ex->ex_keyword, opio2.op_name) == 0) 248 break; 249 250 if (ex->ex_keyword != NULL) 251 (*ex->ex_handler)(ex, &opio2, NULL); 252 else 253 printf("%s=%s\n", opio2.op_name, opio2.op_buf); 254 255 /* 256 * Place the name of the last read value back into 257 * opio1 so that we may obtain the next name. 258 */ 259 bzero(opio1.op_name, sizeof(buf1)); 260 bzero(opio1.op_buf, sizeof(buf2)); 261 sprintf(opio1.op_name, opio2.op_name); 262 } 263 /* NOTREACHED */ 264 } 265