1 /* $NetBSD: drvctl.c,v 1.21 2020/06/11 13:49:57 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2004 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <inttypes.h> 30 #include <stdbool.h> 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <unistd.h> 34 #include <err.h> 35 #include <fcntl.h> 36 #include <string.h> 37 #include <sys/ioctl.h> 38 #include <sys/drvctlio.h> 39 40 41 #define OPEN_MODE(mode) \ 42 (((mode) == 'd' || (mode) == 'r') ? O_RDWR \ 43 : O_RDONLY) 44 45 __dead static void usage(void); 46 static void extract_property(prop_dictionary_t, const char *, bool); 47 static void display_object(prop_object_t, bool); 48 static void list_children(int, char *, bool, bool, int); 49 50 static void 51 usage(void) 52 { 53 const char *p = getprogname(); 54 55 fprintf(stderr, "Usage: %s -r [-a attribute] busdevice [locator ...]\n" 56 " %s -d device\n" 57 " %s [-nt] -l [device]\n" 58 " %s [-n] -p device [property]\n" 59 " %s -Q device\n" 60 " %s -R device\n" 61 " %s -S device\n", p, p, p, p, p, p, p); 62 exit(EXIT_FAILURE); 63 } 64 65 int 66 main(int argc, char **argv) 67 { 68 bool nflag = false, tflag = false; 69 int c, mode; 70 char *attr = 0; 71 extern char *optarg; 72 extern int optind; 73 int fd, res; 74 struct devpmargs paa = { .devname = "", .flags = 0 }; 75 struct devdetachargs daa; 76 struct devrescanargs raa; 77 int *locs, i; 78 prop_dictionary_t command_dict, args_dict, results_dict, data_dict; 79 char *xml; 80 int drvctl_error; 81 82 mode = 0; 83 while ((c = getopt(argc, argv, "QRSa:dlnprt")) != -1) { 84 switch (c) { 85 case 'Q': 86 case 'R': 87 case 'S': 88 case 'd': 89 case 'l': 90 case 'p': 91 case 'r': 92 mode = c; 93 break; 94 case 'a': 95 attr = optarg; 96 break; 97 case 'n': 98 nflag = true; 99 break; 100 case 't': 101 tflag = nflag = true; 102 break; 103 case '?': 104 default: 105 usage(); 106 } 107 } 108 109 argc -= optind; 110 argv += optind; 111 112 if ((argc < 1 && mode != 'l') || mode == 0) 113 usage(); 114 115 fd = open(DRVCTLDEV, OPEN_MODE(mode), 0); 116 if (fd == -1) 117 err(EXIT_FAILURE, "open %s", DRVCTLDEV); 118 119 switch (mode) { 120 case 'Q': 121 paa.flags = DEVPM_F_SUBTREE; 122 /*FALLTHROUGH*/ 123 case 'R': 124 strlcpy(paa.devname, argv[0], sizeof(paa.devname)); 125 126 if (ioctl(fd, DRVRESUMEDEV, &paa) == -1) 127 err(EXIT_FAILURE, "DRVRESUMEDEV"); 128 break; 129 case 'S': 130 strlcpy(paa.devname, argv[0], sizeof(paa.devname)); 131 132 if (ioctl(fd, DRVSUSPENDDEV, &paa) == -1) 133 err(EXIT_FAILURE, "DRVSUSPENDDEV"); 134 break; 135 case 'd': 136 strlcpy(daa.devname, argv[0], sizeof(daa.devname)); 137 138 if (ioctl(fd, DRVDETACHDEV, &daa) == -1) 139 err(EXIT_FAILURE, "DRVDETACHDEV"); 140 break; 141 case 'l': 142 list_children(fd, argc ? argv[0] : NULL, nflag, tflag, 0); 143 break; 144 case 'r': 145 memset(&raa, 0, sizeof(raa)); 146 strlcpy(raa.busname, argv[0], sizeof(raa.busname)); 147 if (attr) 148 strlcpy(raa.ifattr, attr, sizeof(raa.ifattr)); 149 if (argc > 1) { 150 locs = malloc((argc - 1) * sizeof(int)); 151 if (!locs) 152 err(EXIT_FAILURE, "malloc int[%d]", argc - 1); 153 for (i = 0; i < argc - 1; i++) 154 locs[i] = atoi(argv[i + 1]); 155 raa.numlocators = argc - 1; 156 raa.locators = locs; 157 } 158 159 if (ioctl(fd, DRVRESCANBUS, &raa) == -1) 160 err(EXIT_FAILURE, "DRVRESCANBUS"); 161 break; 162 case 'p': 163 command_dict = prop_dictionary_create(); 164 args_dict = prop_dictionary_create(); 165 166 prop_dictionary_set_string_nocopy(command_dict, 167 "drvctl-command", "get-properties"); 168 prop_dictionary_set_string(args_dict, "device-name", 169 argv[0]); 170 prop_dictionary_set_and_rel(command_dict, "drvctl-arguments", 171 args_dict); 172 173 res = prop_dictionary_sendrecv_ioctl(command_dict, fd, 174 DRVCTLCOMMAND, &results_dict); 175 prop_object_release(command_dict); 176 if (res) 177 errc(EXIT_FAILURE, res, "DRVCTLCOMMAND"); 178 179 if (prop_dictionary_get_int(results_dict, "drvctl-error", 180 &drvctl_error) && 181 drvctl_error != 0) { 182 errc(EXIT_FAILURE, drvctl_error, "get-properties"); 183 } 184 185 data_dict = prop_dictionary_get(results_dict, 186 "drvctl-result-data"); 187 if (data_dict == NULL) { 188 errx(EXIT_FAILURE, 189 "get-properties: failed to return result data"); 190 } 191 192 if (argc == 1) { 193 xml = prop_dictionary_externalize(data_dict); 194 if (!nflag) { 195 printf("Properties for device `%s':\n", 196 argv[0]); 197 } 198 printf("%s", xml); 199 free(xml); 200 } else { 201 for (i = 1; i < argc; i++) 202 extract_property(data_dict, argv[i], nflag); 203 } 204 205 prop_object_release(results_dict); 206 break; 207 default: 208 errx(EXIT_FAILURE, "unknown command `%c'", mode); 209 } 210 211 return EXIT_SUCCESS; 212 } 213 214 static void 215 extract_property(prop_dictionary_t dict, const char *prop, bool nflag) 216 { 217 char *s, *p, *cur, *ep = NULL; 218 prop_object_t obj; 219 unsigned long ind; 220 221 obj = dict; 222 cur = NULL; 223 s = strdup(prop); 224 p = strtok_r(s, "/", &ep); 225 while (p) { 226 cur = p; 227 p = strtok_r(NULL, "/", &ep); 228 229 switch (prop_object_type(obj)) { 230 case PROP_TYPE_DICTIONARY: 231 obj = prop_dictionary_get(obj, cur); 232 if (obj == NULL) 233 exit(EXIT_FAILURE); 234 break; 235 case PROP_TYPE_ARRAY: 236 ind = strtoul(cur, NULL, 0); 237 obj = prop_array_get(obj, ind); 238 if (obj == NULL) 239 exit(EXIT_FAILURE); 240 break; 241 default: 242 errx(EXIT_FAILURE, "Select neither dict nor array with" 243 " `%s'", cur); 244 } 245 } 246 247 if (obj != NULL && cur != NULL) 248 display_object(obj, nflag); 249 250 free(s); 251 } 252 253 static void 254 display_object(prop_object_t obj, bool nflag) 255 { 256 char *xml; 257 prop_object_t next_obj; 258 prop_object_iterator_t iter; 259 260 if (obj == NULL) 261 exit(EXIT_FAILURE); 262 switch (prop_object_type(obj)) { 263 case PROP_TYPE_BOOL: 264 printf("%s\n", prop_bool_true(obj) ? "true" : "false"); 265 break; 266 case PROP_TYPE_NUMBER: 267 printf("%" PRId64 "\n", prop_number_signed_value(obj)); 268 break; 269 case PROP_TYPE_STRING: 270 printf("%s\n", prop_string_value(obj)); 271 break; 272 case PROP_TYPE_DICTIONARY: 273 xml = prop_dictionary_externalize(obj); 274 printf("%s", xml); 275 free(xml); 276 break; 277 case PROP_TYPE_ARRAY: 278 iter = prop_array_iterator(obj); 279 if (!nflag) 280 printf("Array:\n"); 281 while ((next_obj = prop_object_iterator_next(iter)) != NULL) 282 display_object(next_obj, nflag); 283 break; 284 default: 285 errx(EXIT_FAILURE, "Unhandled type %d", prop_object_type(obj)); 286 } 287 } 288 289 static void 290 list_children(int fd, char *dvname, bool nflag, bool tflag, int depth) 291 { 292 struct devlistargs laa = { 293 .l_devname = "", .l_childname = NULL, .l_children = 0 294 }; 295 size_t children; 296 int i, n; 297 298 if (dvname == NULL) { 299 if (depth > 0) 300 return; 301 *laa.l_devname = '\0'; 302 } else { 303 strlcpy(laa.l_devname, dvname, sizeof(laa.l_devname)); 304 } 305 306 if (ioctl(fd, DRVLISTDEV, &laa) == -1) 307 err(EXIT_FAILURE, "DRVLISTDEV"); 308 309 children = laa.l_children; 310 311 laa.l_childname = malloc(children * sizeof(laa.l_childname[0])); 312 if (laa.l_childname == NULL) 313 err(EXIT_FAILURE, "DRVLISTDEV"); 314 if (ioctl(fd, DRVLISTDEV, &laa) == -1) 315 err(EXIT_FAILURE, "DRVLISTDEV"); 316 if (laa.l_children > children) 317 err(EXIT_FAILURE, "DRVLISTDEV: number of children grew"); 318 319 for (i = 0; i < (int)laa.l_children; i++) { 320 for (n = 0; n < depth; n++) 321 printf(" "); 322 if (!nflag) { 323 printf("%s ", 324 (dvname == NULL) ? "root" : laa.l_devname); 325 } 326 printf("%s\n", laa.l_childname[i]); 327 if (tflag) { 328 list_children(fd, laa.l_childname[i], nflag, 329 tflag, depth + 1); 330 } 331 } 332 333 free(laa.l_childname); 334 } 335