Kevin Wolf | d3f2436 | 2009-05-18 16:42:09 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Commandline option parsing functions |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * Copyright (c) 2009 Kevin Wolf <kwolf@redhat.com> |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | * THE SOFTWARE. |
| 24 | */ |
| 25 | |
Peter Maydell | aafd758 | 2016-01-29 17:49:55 +0000 | [diff] [blame] | 26 | #include "qemu/osdep.h" |
Kevin Wolf | d3f2436 | 2009-05-18 16:42:09 +0200 | [diff] [blame] | 27 | |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 28 | #include "qapi/error.h" |
Kevin Wolf | d3f2436 | 2009-05-18 16:42:09 +0200 | [diff] [blame] | 29 | #include "qemu-common.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 30 | #include "qemu/error-report.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 31 | #include "qapi/qmp/types.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 32 | #include "qapi/qmp/qerror.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 33 | #include "qemu/option_int.h" |
Veronia Bahaa | f348b6d | 2016-03-20 19:16:19 +0200 | [diff] [blame] | 34 | #include "qemu/cutils.h" |
| 35 | #include "qemu/id.h" |
| 36 | #include "qemu/help_option.h" |
Kevin Wolf | d3f2436 | 2009-05-18 16:42:09 +0200 | [diff] [blame] | 37 | |
| 38 | /* |
| 39 | * Extracts the name of an option from the parameter string (p points at the |
| 40 | * first byte of the option name) |
| 41 | * |
| 42 | * The option name is delimited by delim (usually , or =) or the string end |
| 43 | * and is copied into buf. If the option name is longer than buf_size, it is |
| 44 | * truncated. buf is always zero terminated. |
| 45 | * |
| 46 | * The return value is the position of the delimiter/zero byte after the option |
| 47 | * name in p. |
| 48 | */ |
| 49 | const char *get_opt_name(char *buf, int buf_size, const char *p, char delim) |
| 50 | { |
| 51 | char *q; |
| 52 | |
| 53 | q = buf; |
| 54 | while (*p != '\0' && *p != delim) { |
| 55 | if (q && (q - buf) < buf_size - 1) |
| 56 | *q++ = *p; |
| 57 | p++; |
| 58 | } |
| 59 | if (q) |
| 60 | *q = '\0'; |
| 61 | |
| 62 | return p; |
| 63 | } |
| 64 | |
| 65 | /* |
| 66 | * Extracts the value of an option from the parameter string p (p points at the |
| 67 | * first byte of the option value) |
| 68 | * |
| 69 | * This function is comparable to get_opt_name with the difference that the |
| 70 | * delimiter is fixed to be comma which starts a new option. To specify an |
| 71 | * option value that contains commas, double each comma. |
| 72 | */ |
| 73 | const char *get_opt_value(char *buf, int buf_size, const char *p) |
| 74 | { |
| 75 | char *q; |
| 76 | |
| 77 | q = buf; |
| 78 | while (*p != '\0') { |
| 79 | if (*p == ',') { |
| 80 | if (*(p + 1) != ',') |
| 81 | break; |
| 82 | p++; |
| 83 | } |
| 84 | if (q && (q - buf) < buf_size - 1) |
| 85 | *q++ = *p; |
| 86 | p++; |
| 87 | } |
| 88 | if (q) |
| 89 | *q = '\0'; |
| 90 | |
| 91 | return p; |
| 92 | } |
| 93 | |
Gerd Hoffmann | 62c5802 | 2009-07-22 16:43:00 +0200 | [diff] [blame] | 94 | int get_next_param_value(char *buf, int buf_size, |
| 95 | const char *tag, const char **pstr) |
| 96 | { |
| 97 | const char *p; |
| 98 | char option[128]; |
| 99 | |
| 100 | p = *pstr; |
| 101 | for(;;) { |
| 102 | p = get_opt_name(option, sizeof(option), p, '='); |
| 103 | if (*p != '=') |
| 104 | break; |
| 105 | p++; |
| 106 | if (!strcmp(tag, option)) { |
| 107 | *pstr = get_opt_value(buf, buf_size, p); |
| 108 | if (**pstr == ',') { |
| 109 | (*pstr)++; |
| 110 | } |
| 111 | return strlen(buf); |
| 112 | } else { |
| 113 | p = get_opt_value(NULL, 0, p); |
| 114 | } |
| 115 | if (*p != ',') |
| 116 | break; |
| 117 | p++; |
| 118 | } |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | int get_param_value(char *buf, int buf_size, |
| 123 | const char *tag, const char *str) |
| 124 | { |
| 125 | return get_next_param_value(buf, buf_size, tag, &str); |
| 126 | } |
| 127 | |
Luiz Capitulino | cf62adf | 2012-03-21 14:54:42 -0300 | [diff] [blame] | 128 | static void parse_option_bool(const char *name, const char *value, bool *ret, |
| 129 | Error **errp) |
Gerd Hoffmann | 67b1355 | 2009-07-22 16:43:01 +0200 | [diff] [blame] | 130 | { |
| 131 | if (value != NULL) { |
| 132 | if (!strcmp(value, "on")) { |
| 133 | *ret = 1; |
| 134 | } else if (!strcmp(value, "off")) { |
| 135 | *ret = 0; |
| 136 | } else { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 137 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 138 | name, "'on' or 'off'"); |
Gerd Hoffmann | 67b1355 | 2009-07-22 16:43:01 +0200 | [diff] [blame] | 139 | } |
| 140 | } else { |
| 141 | *ret = 1; |
| 142 | } |
Gerd Hoffmann | 67b1355 | 2009-07-22 16:43:01 +0200 | [diff] [blame] | 143 | } |
| 144 | |
Luiz Capitulino | 2f39df5 | 2012-03-21 14:37:44 -0300 | [diff] [blame] | 145 | static void parse_option_number(const char *name, const char *value, |
| 146 | uint64_t *ret, Error **errp) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 147 | { |
| 148 | char *postfix; |
| 149 | uint64_t number; |
| 150 | |
| 151 | if (value != NULL) { |
| 152 | number = strtoull(value, &postfix, 0); |
| 153 | if (*postfix != '\0') { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 154 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a number"); |
Luiz Capitulino | 2f39df5 | 2012-03-21 14:37:44 -0300 | [diff] [blame] | 155 | return; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 156 | } |
Gerd Hoffmann | 21c9f4c | 2009-07-29 10:39:59 +0200 | [diff] [blame] | 157 | *ret = number; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 158 | } else { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 159 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a number"); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 160 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 161 | } |
| 162 | |
Chunyan Liu | 5e89db7 | 2014-06-05 17:20:40 +0800 | [diff] [blame] | 163 | static const QemuOptDesc *find_desc_by_name(const QemuOptDesc *desc, |
| 164 | const char *name) |
| 165 | { |
| 166 | int i; |
| 167 | |
| 168 | for (i = 0; desc[i].name != NULL; i++) { |
| 169 | if (strcmp(desc[i].name, name) == 0) { |
| 170 | return &desc[i]; |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | return NULL; |
| 175 | } |
| 176 | |
Vasilis Liaskovitis | e8cd45c | 2013-07-29 16:47:56 +0200 | [diff] [blame] | 177 | void parse_option_size(const char *name, const char *value, |
| 178 | uint64_t *ret, Error **errp) |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 179 | { |
| 180 | char *postfix; |
| 181 | double sizef; |
| 182 | |
| 183 | if (value != NULL) { |
| 184 | sizef = strtod(value, &postfix); |
Bo Tu | 2127899 | 2015-07-03 15:28:49 +0800 | [diff] [blame] | 185 | if (sizef < 0 || sizef > UINT64_MAX) { |
| 186 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, |
| 187 | "a non-negative number below 2^64"); |
| 188 | return; |
| 189 | } |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 190 | switch (*postfix) { |
| 191 | case 'T': |
| 192 | sizef *= 1024; |
Stefan Weil | 0b0404b | 2012-01-09 18:29:51 +0100 | [diff] [blame] | 193 | /* fall through */ |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 194 | case 'G': |
| 195 | sizef *= 1024; |
Stefan Weil | 0b0404b | 2012-01-09 18:29:51 +0100 | [diff] [blame] | 196 | /* fall through */ |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 197 | case 'M': |
| 198 | sizef *= 1024; |
Stefan Weil | 0b0404b | 2012-01-09 18:29:51 +0100 | [diff] [blame] | 199 | /* fall through */ |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 200 | case 'K': |
| 201 | case 'k': |
| 202 | sizef *= 1024; |
Stefan Weil | 0b0404b | 2012-01-09 18:29:51 +0100 | [diff] [blame] | 203 | /* fall through */ |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 204 | case 'b': |
| 205 | case '\0': |
| 206 | *ret = (uint64_t) sizef; |
| 207 | break; |
| 208 | default: |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 209 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a size"); |
Eric Blake | 50b7b00 | 2015-09-10 10:19:16 -0600 | [diff] [blame] | 210 | error_append_hint(errp, "You may use k, M, G or T suffixes for " |
Markus Armbruster | 543202c | 2015-12-17 17:35:14 +0100 | [diff] [blame] | 211 | "kilobytes, megabytes, gigabytes and terabytes.\n"); |
Luiz Capitulino | ec7b2cc | 2012-03-21 15:03:45 -0300 | [diff] [blame] | 212 | return; |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 213 | } |
| 214 | } else { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 215 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a size"); |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 216 | } |
Gerd Hoffmann | 7695019 | 2009-07-22 16:43:02 +0200 | [diff] [blame] | 217 | } |
| 218 | |
Kevin Wolf | 7cc07ab | 2014-02-21 16:24:03 +0100 | [diff] [blame] | 219 | bool has_help_option(const char *param) |
| 220 | { |
| 221 | size_t buflen = strlen(param) + 1; |
Markus Armbruster | 96c044a | 2015-01-28 15:54:01 +0100 | [diff] [blame] | 222 | char *buf = g_malloc(buflen); |
Kevin Wolf | 7cc07ab | 2014-02-21 16:24:03 +0100 | [diff] [blame] | 223 | const char *p = param; |
| 224 | bool result = false; |
| 225 | |
| 226 | while (*p) { |
| 227 | p = get_opt_value(buf, buflen, p); |
| 228 | if (*p) { |
| 229 | p++; |
| 230 | } |
| 231 | |
| 232 | if (is_help_option(buf)) { |
| 233 | result = true; |
| 234 | goto out; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | out: |
Markus Armbruster | c0462f6 | 2015-01-28 15:54:02 +0100 | [diff] [blame] | 239 | g_free(buf); |
Kevin Wolf | 7cc07ab | 2014-02-21 16:24:03 +0100 | [diff] [blame] | 240 | return result; |
| 241 | } |
| 242 | |
| 243 | bool is_valid_option_list(const char *param) |
| 244 | { |
| 245 | size_t buflen = strlen(param) + 1; |
Markus Armbruster | 96c044a | 2015-01-28 15:54:01 +0100 | [diff] [blame] | 246 | char *buf = g_malloc(buflen); |
Kevin Wolf | 7cc07ab | 2014-02-21 16:24:03 +0100 | [diff] [blame] | 247 | const char *p = param; |
| 248 | bool result = true; |
| 249 | |
| 250 | while (*p) { |
| 251 | p = get_opt_value(buf, buflen, p); |
| 252 | if (*p && !*++p) { |
| 253 | result = false; |
| 254 | goto out; |
| 255 | } |
| 256 | |
| 257 | if (!*buf || *buf == ',') { |
| 258 | result = false; |
| 259 | goto out; |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | out: |
Markus Armbruster | c0462f6 | 2015-01-28 15:54:02 +0100 | [diff] [blame] | 264 | g_free(buf); |
Kevin Wolf | 7cc07ab | 2014-02-21 16:24:03 +0100 | [diff] [blame] | 265 | return result; |
| 266 | } |
| 267 | |
Chunyan Liu | 504189a | 2014-06-05 17:20:47 +0800 | [diff] [blame] | 268 | void qemu_opts_print_help(QemuOptsList *list) |
| 269 | { |
| 270 | QemuOptDesc *desc; |
| 271 | |
| 272 | assert(list); |
| 273 | desc = list->desc; |
| 274 | printf("Supported options:\n"); |
| 275 | while (desc && desc->name) { |
| 276 | printf("%-16s %s\n", desc->name, |
| 277 | desc->help ? desc->help : "No description available"); |
| 278 | desc++; |
| 279 | } |
| 280 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 281 | /* ------------------------------------------------------------------ */ |
| 282 | |
Chunyan Liu | 74c3c19 | 2014-06-05 17:20:58 +0800 | [diff] [blame] | 283 | QemuOpt *qemu_opt_find(QemuOpts *opts, const char *name) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 284 | { |
| 285 | QemuOpt *opt; |
| 286 | |
Mark McLoughlin | dc9ca4b | 2009-10-06 12:17:04 +0100 | [diff] [blame] | 287 | QTAILQ_FOREACH_REVERSE(opt, &opts->head, QemuOptHead, next) { |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 288 | if (strcmp(opt->name, name) != 0) |
| 289 | continue; |
| 290 | return opt; |
| 291 | } |
| 292 | return NULL; |
| 293 | } |
| 294 | |
Chunyan Liu | fc34551 | 2014-06-05 17:20:45 +0800 | [diff] [blame] | 295 | static void qemu_opt_del(QemuOpt *opt) |
| 296 | { |
| 297 | QTAILQ_REMOVE(&opt->opts->head, opt, next); |
| 298 | g_free(opt->name); |
| 299 | g_free(opt->str); |
| 300 | g_free(opt); |
| 301 | } |
| 302 | |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 303 | /* qemu_opt_set allows many settings for the same option. |
| 304 | * This function deletes all settings for an option. |
| 305 | */ |
| 306 | static void qemu_opt_del_all(QemuOpts *opts, const char *name) |
| 307 | { |
| 308 | QemuOpt *opt, *next_opt; |
| 309 | |
| 310 | QTAILQ_FOREACH_SAFE(opt, &opts->head, next, next_opt) { |
| 311 | if (!strcmp(opt->name, name)) { |
| 312 | qemu_opt_del(opt); |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 317 | const char *qemu_opt_get(QemuOpts *opts, const char *name) |
| 318 | { |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 319 | QemuOpt *opt; |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 320 | |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 321 | if (opts == NULL) { |
| 322 | return NULL; |
| 323 | } |
| 324 | |
| 325 | opt = qemu_opt_find(opts, name); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 326 | if (!opt) { |
| 327 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); |
| 328 | if (desc && desc->def_value_str) { |
| 329 | return desc->def_value_str; |
| 330 | } |
| 331 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 332 | return opt ? opt->str : NULL; |
| 333 | } |
| 334 | |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 335 | /* Get a known option (or its default) and remove it from the list |
| 336 | * all in one action. Return a malloced string of the option value. |
| 337 | * Result must be freed by caller with g_free(). |
| 338 | */ |
| 339 | char *qemu_opt_get_del(QemuOpts *opts, const char *name) |
| 340 | { |
| 341 | QemuOpt *opt; |
| 342 | const QemuOptDesc *desc; |
| 343 | char *str = NULL; |
| 344 | |
| 345 | if (opts == NULL) { |
| 346 | return NULL; |
| 347 | } |
| 348 | |
| 349 | opt = qemu_opt_find(opts, name); |
| 350 | if (!opt) { |
| 351 | desc = find_desc_by_name(opts->list->desc, name); |
| 352 | if (desc && desc->def_value_str) { |
| 353 | str = g_strdup(desc->def_value_str); |
| 354 | } |
| 355 | return str; |
| 356 | } |
| 357 | str = opt->str; |
| 358 | opt->str = NULL; |
| 359 | qemu_opt_del_all(opts, name); |
| 360 | return str; |
| 361 | } |
| 362 | |
Peter Maydell | c8057f9 | 2012-08-02 13:45:54 +0100 | [diff] [blame] | 363 | bool qemu_opt_has_help_opt(QemuOpts *opts) |
| 364 | { |
| 365 | QemuOpt *opt; |
| 366 | |
| 367 | QTAILQ_FOREACH_REVERSE(opt, &opts->head, QemuOptHead, next) { |
| 368 | if (is_help_option(opt->name)) { |
| 369 | return true; |
| 370 | } |
| 371 | } |
| 372 | return false; |
| 373 | } |
| 374 | |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 375 | static bool qemu_opt_get_bool_helper(QemuOpts *opts, const char *name, |
| 376 | bool defval, bool del) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 377 | { |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 378 | QemuOpt *opt; |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 379 | bool ret = defval; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 380 | |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 381 | if (opts == NULL) { |
| 382 | return ret; |
| 383 | } |
| 384 | |
| 385 | opt = qemu_opt_find(opts, name); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 386 | if (opt == NULL) { |
| 387 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); |
| 388 | if (desc && desc->def_value_str) { |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 389 | parse_option_bool(name, desc->def_value_str, &ret, &error_abort); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 390 | } |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 391 | return ret; |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 392 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 393 | assert(opt->desc && opt->desc->type == QEMU_OPT_BOOL); |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 394 | ret = opt->value.boolean; |
| 395 | if (del) { |
| 396 | qemu_opt_del_all(opts, name); |
| 397 | } |
| 398 | return ret; |
| 399 | } |
| 400 | |
| 401 | bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval) |
| 402 | { |
| 403 | return qemu_opt_get_bool_helper(opts, name, defval, false); |
| 404 | } |
| 405 | |
| 406 | bool qemu_opt_get_bool_del(QemuOpts *opts, const char *name, bool defval) |
| 407 | { |
| 408 | return qemu_opt_get_bool_helper(opts, name, defval, true); |
| 409 | } |
| 410 | |
| 411 | static uint64_t qemu_opt_get_number_helper(QemuOpts *opts, const char *name, |
| 412 | uint64_t defval, bool del) |
| 413 | { |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 414 | QemuOpt *opt; |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 415 | uint64_t ret = defval; |
| 416 | |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 417 | if (opts == NULL) { |
| 418 | return ret; |
| 419 | } |
| 420 | |
| 421 | opt = qemu_opt_find(opts, name); |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 422 | if (opt == NULL) { |
| 423 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); |
| 424 | if (desc && desc->def_value_str) { |
| 425 | parse_option_number(name, desc->def_value_str, &ret, &error_abort); |
| 426 | } |
| 427 | return ret; |
| 428 | } |
| 429 | assert(opt->desc && opt->desc->type == QEMU_OPT_NUMBER); |
| 430 | ret = opt->value.uint; |
| 431 | if (del) { |
| 432 | qemu_opt_del_all(opts, name); |
| 433 | } |
| 434 | return ret; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 435 | } |
| 436 | |
| 437 | uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval) |
| 438 | { |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 439 | return qemu_opt_get_number_helper(opts, name, defval, false); |
| 440 | } |
| 441 | |
| 442 | uint64_t qemu_opt_get_number_del(QemuOpts *opts, const char *name, |
| 443 | uint64_t defval) |
| 444 | { |
| 445 | return qemu_opt_get_number_helper(opts, name, defval, true); |
| 446 | } |
| 447 | |
| 448 | static uint64_t qemu_opt_get_size_helper(QemuOpts *opts, const char *name, |
| 449 | uint64_t defval, bool del) |
| 450 | { |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 451 | QemuOpt *opt; |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 452 | uint64_t ret = defval; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 453 | |
Chunyan Liu | 435db4c | 2014-06-18 10:47:26 +0800 | [diff] [blame] | 454 | if (opts == NULL) { |
| 455 | return ret; |
| 456 | } |
| 457 | |
| 458 | opt = qemu_opt_find(opts, name); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 459 | if (opt == NULL) { |
| 460 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); |
| 461 | if (desc && desc->def_value_str) { |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 462 | parse_option_size(name, desc->def_value_str, &ret, &error_abort); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 463 | } |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 464 | return ret; |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 465 | } |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 466 | assert(opt->desc && opt->desc->type == QEMU_OPT_SIZE); |
| 467 | ret = opt->value.uint; |
| 468 | if (del) { |
| 469 | qemu_opt_del_all(opts, name); |
| 470 | } |
| 471 | return ret; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval) |
| 475 | { |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 476 | return qemu_opt_get_size_helper(opts, name, defval, false); |
| 477 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 478 | |
Chunyan Liu | 782730b | 2014-06-05 17:20:46 +0800 | [diff] [blame] | 479 | uint64_t qemu_opt_get_size_del(QemuOpts *opts, const char *name, |
| 480 | uint64_t defval) |
| 481 | { |
| 482 | return qemu_opt_get_size_helper(opts, name, defval, true); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 483 | } |
| 484 | |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 485 | static void qemu_opt_parse(QemuOpt *opt, Error **errp) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 486 | { |
| 487 | if (opt->desc == NULL) |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 488 | return; |
Luiz Capitulino | 2f39df5 | 2012-03-21 14:37:44 -0300 | [diff] [blame] | 489 | |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 490 | switch (opt->desc->type) { |
| 491 | case QEMU_OPT_STRING: |
| 492 | /* nothing */ |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 493 | return; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 494 | case QEMU_OPT_BOOL: |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 495 | parse_option_bool(opt->name, opt->str, &opt->value.boolean, errp); |
Luiz Capitulino | cf62adf | 2012-03-21 14:54:42 -0300 | [diff] [blame] | 496 | break; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 497 | case QEMU_OPT_NUMBER: |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 498 | parse_option_number(opt->name, opt->str, &opt->value.uint, errp); |
Luiz Capitulino | 2f39df5 | 2012-03-21 14:37:44 -0300 | [diff] [blame] | 499 | break; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 500 | case QEMU_OPT_SIZE: |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 501 | parse_option_size(opt->name, opt->str, &opt->value.uint, errp); |
Luiz Capitulino | ec7b2cc | 2012-03-21 15:03:45 -0300 | [diff] [blame] | 502 | break; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 503 | default: |
| 504 | abort(); |
| 505 | } |
| 506 | } |
| 507 | |
Dong Xu Wang | c474ced | 2012-12-06 14:47:18 +0800 | [diff] [blame] | 508 | static bool opts_accepts_any(const QemuOpts *opts) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 509 | { |
Dong Xu Wang | c474ced | 2012-12-06 14:47:18 +0800 | [diff] [blame] | 510 | return opts->list->desc[0].name == NULL; |
| 511 | } |
| 512 | |
Kevin Wolf | 0dd6c52 | 2013-07-17 14:40:37 +0200 | [diff] [blame] | 513 | int qemu_opt_unset(QemuOpts *opts, const char *name) |
| 514 | { |
| 515 | QemuOpt *opt = qemu_opt_find(opts, name); |
| 516 | |
| 517 | assert(opts_accepts_any(opts)); |
| 518 | |
| 519 | if (opt == NULL) { |
| 520 | return -1; |
| 521 | } else { |
| 522 | qemu_opt_del(opt); |
| 523 | return 0; |
| 524 | } |
| 525 | } |
| 526 | |
Dong Xu Wang | c474ced | 2012-12-06 14:47:18 +0800 | [diff] [blame] | 527 | static void opt_set(QemuOpts *opts, const char *name, const char *value, |
| 528 | bool prepend, Error **errp) |
| 529 | { |
| 530 | QemuOpt *opt; |
| 531 | const QemuOptDesc *desc; |
| 532 | Error *local_err = NULL; |
| 533 | |
| 534 | desc = find_desc_by_name(opts->list->desc, name); |
| 535 | if (!desc && !opts_accepts_any(opts)) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 536 | error_setg(errp, QERR_INVALID_PARAMETER, name); |
Dong Xu Wang | c474ced | 2012-12-06 14:47:18 +0800 | [diff] [blame] | 537 | return; |
Mark McLoughlin | dc9ca4b | 2009-10-06 12:17:04 +0100 | [diff] [blame] | 538 | } |
| 539 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 540 | opt = g_malloc0(sizeof(*opt)); |
| 541 | opt->name = g_strdup(name); |
Mark McLoughlin | dc9ca4b | 2009-10-06 12:17:04 +0100 | [diff] [blame] | 542 | opt->opts = opts; |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 543 | if (prepend) { |
| 544 | QTAILQ_INSERT_HEAD(&opts->head, opt, next); |
| 545 | } else { |
| 546 | QTAILQ_INSERT_TAIL(&opts->head, opt, next); |
| 547 | } |
Dong Xu Wang | c474ced | 2012-12-06 14:47:18 +0800 | [diff] [blame] | 548 | opt->desc = desc; |
Markus Armbruster | c64f50d | 2013-01-22 11:07:57 +0100 | [diff] [blame] | 549 | opt->str = g_strdup(value); |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 550 | qemu_opt_parse(opt, &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 551 | if (local_err) { |
Luiz Capitulino | 584d406 | 2012-03-21 16:13:24 -0300 | [diff] [blame] | 552 | error_propagate(errp, local_err); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 553 | qemu_opt_del(opt); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 554 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 555 | } |
| 556 | |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 557 | void qemu_opt_set(QemuOpts *opts, const char *name, const char *value, |
| 558 | Error **errp) |
Luiz Capitulino | 384f213 | 2012-03-21 16:17:21 -0300 | [diff] [blame] | 559 | { |
| 560 | opt_set(opts, name, value, false, errp); |
| 561 | } |
| 562 | |
Markus Armbruster | cccb796 | 2015-02-12 16:37:44 +0100 | [diff] [blame] | 563 | void qemu_opt_set_bool(QemuOpts *opts, const char *name, bool val, |
| 564 | Error **errp) |
M. Mohan Kumar | f02b77c | 2011-10-25 12:10:39 +0530 | [diff] [blame] | 565 | { |
| 566 | QemuOpt *opt; |
| 567 | const QemuOptDesc *desc = opts->list->desc; |
M. Mohan Kumar | f02b77c | 2011-10-25 12:10:39 +0530 | [diff] [blame] | 568 | |
| 569 | opt = g_malloc0(sizeof(*opt)); |
Dong Xu Wang | ad718d0 | 2012-12-06 14:47:20 +0800 | [diff] [blame] | 570 | opt->desc = find_desc_by_name(desc, name); |
| 571 | if (!opt->desc && !opts_accepts_any(opts)) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 572 | error_setg(errp, QERR_INVALID_PARAMETER, name); |
Dong Xu Wang | ad718d0 | 2012-12-06 14:47:20 +0800 | [diff] [blame] | 573 | g_free(opt); |
Markus Armbruster | cccb796 | 2015-02-12 16:37:44 +0100 | [diff] [blame] | 574 | return; |
Dong Xu Wang | ad718d0 | 2012-12-06 14:47:20 +0800 | [diff] [blame] | 575 | } |
| 576 | |
M. Mohan Kumar | f02b77c | 2011-10-25 12:10:39 +0530 | [diff] [blame] | 577 | opt->name = g_strdup(name); |
| 578 | opt->opts = opts; |
M. Mohan Kumar | f02b77c | 2011-10-25 12:10:39 +0530 | [diff] [blame] | 579 | opt->value.boolean = !!val; |
Dong Xu Wang | ad718d0 | 2012-12-06 14:47:20 +0800 | [diff] [blame] | 580 | opt->str = g_strdup(val ? "on" : "off"); |
| 581 | QTAILQ_INSERT_TAIL(&opts->head, opt, next); |
M. Mohan Kumar | f02b77c | 2011-10-25 12:10:39 +0530 | [diff] [blame] | 582 | } |
| 583 | |
Markus Armbruster | 39101f2 | 2015-02-12 16:46:36 +0100 | [diff] [blame] | 584 | void qemu_opt_set_number(QemuOpts *opts, const char *name, int64_t val, |
| 585 | Error **errp) |
Dong Xu Wang | b83c18e | 2012-12-06 14:47:23 +0800 | [diff] [blame] | 586 | { |
| 587 | QemuOpt *opt; |
| 588 | const QemuOptDesc *desc = opts->list->desc; |
| 589 | |
| 590 | opt = g_malloc0(sizeof(*opt)); |
| 591 | opt->desc = find_desc_by_name(desc, name); |
| 592 | if (!opt->desc && !opts_accepts_any(opts)) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 593 | error_setg(errp, QERR_INVALID_PARAMETER, name); |
Dong Xu Wang | b83c18e | 2012-12-06 14:47:23 +0800 | [diff] [blame] | 594 | g_free(opt); |
Markus Armbruster | 39101f2 | 2015-02-12 16:46:36 +0100 | [diff] [blame] | 595 | return; |
Dong Xu Wang | b83c18e | 2012-12-06 14:47:23 +0800 | [diff] [blame] | 596 | } |
| 597 | |
| 598 | opt->name = g_strdup(name); |
| 599 | opt->opts = opts; |
| 600 | opt->value.uint = val; |
| 601 | opt->str = g_strdup_printf("%" PRId64, val); |
| 602 | QTAILQ_INSERT_TAIL(&opts->head, opt, next); |
Dong Xu Wang | b83c18e | 2012-12-06 14:47:23 +0800 | [diff] [blame] | 603 | } |
| 604 | |
Markus Armbruster | 1640b20 | 2015-03-12 07:45:10 +0100 | [diff] [blame] | 605 | /** |
Markus Armbruster | 71df1d8 | 2015-03-12 08:40:25 +0100 | [diff] [blame] | 606 | * For each member of @opts, call @func(@opaque, name, value, @errp). |
| 607 | * @func() may store an Error through @errp, but must return non-zero then. |
Markus Armbruster | 1640b20 | 2015-03-12 07:45:10 +0100 | [diff] [blame] | 608 | * When @func() returns non-zero, break the loop and return that value. |
| 609 | * Return zero when the loop completes. |
| 610 | */ |
Markus Armbruster | 71df1d8 | 2015-03-12 08:40:25 +0100 | [diff] [blame] | 611 | int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque, |
| 612 | Error **errp) |
Gerd Hoffmann | 4802607 | 2009-07-31 12:25:32 +0200 | [diff] [blame] | 613 | { |
| 614 | QemuOpt *opt; |
Markus Armbruster | 1640b20 | 2015-03-12 07:45:10 +0100 | [diff] [blame] | 615 | int rc; |
Gerd Hoffmann | 4802607 | 2009-07-31 12:25:32 +0200 | [diff] [blame] | 616 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 617 | QTAILQ_FOREACH(opt, &opts->head, next) { |
Markus Armbruster | 71df1d8 | 2015-03-12 08:40:25 +0100 | [diff] [blame] | 618 | rc = func(opaque, opt->name, opt->str, errp); |
Markus Armbruster | 1640b20 | 2015-03-12 07:45:10 +0100 | [diff] [blame] | 619 | if (rc) { |
| 620 | return rc; |
| 621 | } |
Markus Armbruster | 71df1d8 | 2015-03-12 08:40:25 +0100 | [diff] [blame] | 622 | assert(!errp || !*errp); |
Gerd Hoffmann | 4802607 | 2009-07-31 12:25:32 +0200 | [diff] [blame] | 623 | } |
Markus Armbruster | 1640b20 | 2015-03-12 07:45:10 +0100 | [diff] [blame] | 624 | return 0; |
Gerd Hoffmann | 4802607 | 2009-07-31 12:25:32 +0200 | [diff] [blame] | 625 | } |
| 626 | |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 627 | QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id) |
| 628 | { |
| 629 | QemuOpts *opts; |
| 630 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 631 | QTAILQ_FOREACH(opts, &list->head, next) { |
Markus Armbruster | 96bc97e | 2013-07-04 15:09:17 +0200 | [diff] [blame] | 632 | if (!opts->id && !id) { |
| 633 | return opts; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 634 | } |
Markus Armbruster | 96bc97e | 2013-07-04 15:09:17 +0200 | [diff] [blame] | 635 | if (opts->id && id && !strcmp(opts->id, id)) { |
| 636 | return opts; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 637 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 638 | } |
| 639 | return NULL; |
| 640 | } |
| 641 | |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 642 | QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, |
| 643 | int fail_if_exists, Error **errp) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 644 | { |
| 645 | QemuOpts *opts = NULL; |
| 646 | |
| 647 | if (id) { |
Markus Armbruster | f5bebbb | 2014-09-30 13:59:30 +0200 | [diff] [blame] | 648 | if (!id_wellformed(id)) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 649 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "id", |
| 650 | "an identifier"); |
Eric Blake | 50b7b00 | 2015-09-10 10:19:16 -0600 | [diff] [blame] | 651 | error_append_hint(errp, "Identifiers consist of letters, digits, " |
Markus Armbruster | 543202c | 2015-12-17 17:35:14 +0100 | [diff] [blame] | 652 | "'-', '.', '_', starting with a letter.\n"); |
Markus Armbruster | b560a9a | 2010-06-08 13:54:26 +0200 | [diff] [blame] | 653 | return NULL; |
| 654 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 655 | opts = qemu_opts_find(list, id); |
| 656 | if (opts != NULL) { |
Peter Maydell | da93318 | 2012-02-08 05:41:37 +0000 | [diff] [blame] | 657 | if (fail_if_exists && !list->merge_lists) { |
Cole Robinson | f231b88 | 2014-03-21 19:42:26 -0400 | [diff] [blame] | 658 | error_setg(errp, "Duplicate ID '%s' for %s", id, list->name); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 659 | return NULL; |
| 660 | } else { |
| 661 | return opts; |
| 662 | } |
| 663 | } |
Peter Maydell | da93318 | 2012-02-08 05:41:37 +0000 | [diff] [blame] | 664 | } else if (list->merge_lists) { |
| 665 | opts = qemu_opts_find(list, NULL); |
| 666 | if (opts) { |
| 667 | return opts; |
| 668 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 669 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 670 | opts = g_malloc0(sizeof(*opts)); |
Markus Armbruster | c64f50d | 2013-01-22 11:07:57 +0100 | [diff] [blame] | 671 | opts->id = g_strdup(id); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 672 | opts->list = list; |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 673 | loc_save(&opts->loc); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 674 | QTAILQ_INIT(&opts->head); |
| 675 | QTAILQ_INSERT_TAIL(&list->head, opts, next); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 676 | return opts; |
| 677 | } |
| 678 | |
Markus Armbruster | bb67ab0 | 2010-06-01 10:47:34 +0200 | [diff] [blame] | 679 | void qemu_opts_reset(QemuOptsList *list) |
| 680 | { |
| 681 | QemuOpts *opts, *next_opts; |
| 682 | |
| 683 | QTAILQ_FOREACH_SAFE(opts, &list->head, next, next_opts) { |
| 684 | qemu_opts_del(opts); |
| 685 | } |
| 686 | } |
| 687 | |
Markus Armbruster | 94ac726 | 2010-05-27 21:06:04 +0200 | [diff] [blame] | 688 | void qemu_opts_loc_restore(QemuOpts *opts) |
| 689 | { |
| 690 | loc_restore(&opts->loc); |
| 691 | } |
| 692 | |
Markus Armbruster | 79087c7 | 2015-02-12 17:07:34 +0100 | [diff] [blame] | 693 | void qemu_opts_set(QemuOptsList *list, const char *id, |
| 694 | const char *name, const char *value, Error **errp) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 695 | { |
| 696 | QemuOpts *opts; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 697 | Error *local_err = NULL; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 698 | |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 699 | opts = qemu_opts_create(list, id, 1, &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 700 | if (local_err) { |
Markus Armbruster | 79087c7 | 2015-02-12 17:07:34 +0100 | [diff] [blame] | 701 | error_propagate(errp, local_err); |
| 702 | return; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 703 | } |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 704 | qemu_opt_set(opts, name, value, errp); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 705 | } |
| 706 | |
Gerd Hoffmann | 4802607 | 2009-07-31 12:25:32 +0200 | [diff] [blame] | 707 | const char *qemu_opts_id(QemuOpts *opts) |
| 708 | { |
| 709 | return opts->id; |
| 710 | } |
| 711 | |
Kevin Wolf | 326642b | 2013-07-11 12:52:34 +0200 | [diff] [blame] | 712 | /* The id string will be g_free()d by qemu_opts_del */ |
| 713 | void qemu_opts_set_id(QemuOpts *opts, char *id) |
| 714 | { |
| 715 | opts->id = id; |
| 716 | } |
| 717 | |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 718 | void qemu_opts_del(QemuOpts *opts) |
| 719 | { |
| 720 | QemuOpt *opt; |
| 721 | |
Chunyan Liu | 4782183 | 2014-06-05 17:20:50 +0800 | [diff] [blame] | 722 | if (opts == NULL) { |
| 723 | return; |
| 724 | } |
| 725 | |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 726 | for (;;) { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 727 | opt = QTAILQ_FIRST(&opts->head); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 728 | if (opt == NULL) |
| 729 | break; |
| 730 | qemu_opt_del(opt); |
| 731 | } |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 732 | QTAILQ_REMOVE(&opts->list->head, opts, next); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 733 | g_free(opts->id); |
| 734 | g_free(opts); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 735 | } |
| 736 | |
Kővágó, Zoltán | fe64669 | 2015-07-07 16:42:10 +0200 | [diff] [blame] | 737 | /* print value, escaping any commas in value */ |
| 738 | static void escaped_print(const char *value) |
| 739 | { |
| 740 | const char *ptr; |
| 741 | |
| 742 | for (ptr = value; *ptr; ++ptr) { |
| 743 | if (*ptr == ',') { |
| 744 | putchar(','); |
| 745 | } |
| 746 | putchar(*ptr); |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | void qemu_opts_print(QemuOpts *opts, const char *separator) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 751 | { |
| 752 | QemuOpt *opt; |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 753 | QemuOptDesc *desc = opts->list->desc; |
Kővágó, Zoltán | fe64669 | 2015-07-07 16:42:10 +0200 | [diff] [blame] | 754 | const char *sep = ""; |
| 755 | |
| 756 | if (opts->id) { |
| 757 | printf("id=%s", opts->id); /* passed id_wellformed -> no commas */ |
| 758 | sep = separator; |
| 759 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 760 | |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 761 | if (desc[0].name == NULL) { |
| 762 | QTAILQ_FOREACH(opt, &opts->head, next) { |
Kővágó, Zoltán | fe64669 | 2015-07-07 16:42:10 +0200 | [diff] [blame] | 763 | printf("%s%s=", sep, opt->name); |
| 764 | escaped_print(opt->str); |
| 765 | sep = separator; |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 766 | } |
| 767 | return; |
| 768 | } |
| 769 | for (; desc && desc->name; desc++) { |
| 770 | const char *value; |
| 771 | QemuOpt *opt = qemu_opt_find(opts, desc->name); |
| 772 | |
| 773 | value = opt ? opt->str : desc->def_value_str; |
| 774 | if (!value) { |
| 775 | continue; |
| 776 | } |
| 777 | if (desc->type == QEMU_OPT_STRING) { |
Kővágó, Zoltán | fe64669 | 2015-07-07 16:42:10 +0200 | [diff] [blame] | 778 | printf("%s%s=", sep, desc->name); |
| 779 | escaped_print(value); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 780 | } else if ((desc->type == QEMU_OPT_SIZE || |
| 781 | desc->type == QEMU_OPT_NUMBER) && opt) { |
Fam Zheng | 43c5d8f | 2014-12-09 15:38:04 +0800 | [diff] [blame] | 782 | printf("%s%s=%" PRId64, sep, desc->name, opt->value.uint); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 783 | } else { |
Fam Zheng | 43c5d8f | 2014-12-09 15:38:04 +0800 | [diff] [blame] | 784 | printf("%s%s=%s", sep, desc->name, value); |
Chunyan Liu | 0972203 | 2014-06-05 17:20:42 +0800 | [diff] [blame] | 785 | } |
Kővágó, Zoltán | fe64669 | 2015-07-07 16:42:10 +0200 | [diff] [blame] | 786 | sep = separator; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 787 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 788 | } |
| 789 | |
Markus Armbruster | d93ae3c | 2015-02-12 17:59:06 +0100 | [diff] [blame] | 790 | static void opts_do_parse(QemuOpts *opts, const char *params, |
| 791 | const char *firstname, bool prepend, Error **errp) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 792 | { |
Gerd Hoffmann | d318ff9 | 2009-12-10 11:11:08 +0100 | [diff] [blame] | 793 | char option[128], value[1024]; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 794 | const char *p,*pe,*pc; |
Luiz Capitulino | 584d406 | 2012-03-21 16:13:24 -0300 | [diff] [blame] | 795 | Error *local_err = NULL; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 796 | |
Mark McLoughlin | 2cfa571 | 2009-10-06 12:17:02 +0100 | [diff] [blame] | 797 | for (p = params; *p != '\0'; p++) { |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 798 | pe = strchr(p, '='); |
| 799 | pc = strchr(p, ','); |
| 800 | if (!pe || (pc && pc < pe)) { |
| 801 | /* found "foo,more" */ |
| 802 | if (p == params && firstname) { |
| 803 | /* implicitly named first option */ |
| 804 | pstrcpy(option, sizeof(option), firstname); |
| 805 | p = get_opt_value(value, sizeof(value), p); |
| 806 | } else { |
| 807 | /* option without value, probably a flag */ |
| 808 | p = get_opt_name(option, sizeof(option), p, ','); |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 809 | if (strncmp(option, "no", 2) == 0) { |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 810 | memmove(option, option+2, strlen(option+2)+1); |
| 811 | pstrcpy(value, sizeof(value), "off"); |
| 812 | } else { |
| 813 | pstrcpy(value, sizeof(value), "on"); |
| 814 | } |
| 815 | } |
| 816 | } else { |
| 817 | /* found "foo=bar,more" */ |
| 818 | p = get_opt_name(option, sizeof(option), p, '='); |
| 819 | if (*p != '=') { |
| 820 | break; |
| 821 | } |
| 822 | p++; |
| 823 | p = get_opt_value(value, sizeof(value), p); |
| 824 | } |
| 825 | if (strcmp(option, "id") != 0) { |
| 826 | /* store and parse */ |
Luiz Capitulino | 584d406 | 2012-03-21 16:13:24 -0300 | [diff] [blame] | 827 | opt_set(opts, option, value, prepend, &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 828 | if (local_err) { |
Markus Armbruster | d93ae3c | 2015-02-12 17:59:06 +0100 | [diff] [blame] | 829 | error_propagate(errp, local_err); |
| 830 | return; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 831 | } |
| 832 | } |
| 833 | if (*p != ',') { |
| 834 | break; |
| 835 | } |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 836 | } |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 837 | } |
| 838 | |
Markus Armbruster | dc523cd34 | 2015-02-12 18:37:11 +0100 | [diff] [blame] | 839 | /** |
| 840 | * Store options parsed from @params into @opts. |
| 841 | * If @firstname is non-null, the first key=value in @params may omit |
| 842 | * key=, and is treated as if key was @firstname. |
| 843 | * On error, store an error object through @errp if non-null. |
| 844 | */ |
| 845 | void qemu_opts_do_parse(QemuOpts *opts, const char *params, |
| 846 | const char *firstname, Error **errp) |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 847 | { |
Markus Armbruster | dc523cd34 | 2015-02-12 18:37:11 +0100 | [diff] [blame] | 848 | opts_do_parse(opts, params, firstname, false, errp); |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 849 | } |
| 850 | |
| 851 | static QemuOpts *opts_parse(QemuOptsList *list, const char *params, |
Markus Armbruster | 70b9433 | 2015-02-13 12:50:26 +0100 | [diff] [blame] | 852 | bool permit_abbrev, bool defaults, Error **errp) |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 853 | { |
Markus Armbruster | 8212c64 | 2010-02-10 19:52:18 +0100 | [diff] [blame] | 854 | const char *firstname; |
Gerd Hoffmann | d318ff9 | 2009-12-10 11:11:08 +0100 | [diff] [blame] | 855 | char value[1024], *id = NULL; |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 856 | const char *p; |
| 857 | QemuOpts *opts; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 858 | Error *local_err = NULL; |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 859 | |
Markus Armbruster | 8212c64 | 2010-02-10 19:52:18 +0100 | [diff] [blame] | 860 | assert(!permit_abbrev || list->implied_opt_name); |
| 861 | firstname = permit_abbrev ? list->implied_opt_name : NULL; |
| 862 | |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 863 | if (strncmp(params, "id=", 3) == 0) { |
| 864 | get_opt_value(value, sizeof(value), params+3); |
Jan Kiszka | d510c5c | 2010-04-29 18:24:43 +0200 | [diff] [blame] | 865 | id = value; |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 866 | } else if ((p = strstr(params, ",id=")) != NULL) { |
| 867 | get_opt_value(value, sizeof(value), p+4); |
Jan Kiszka | d510c5c | 2010-04-29 18:24:43 +0200 | [diff] [blame] | 868 | id = value; |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 869 | } |
Markus Armbruster | cb77d19 | 2013-08-02 09:34:00 +0200 | [diff] [blame] | 870 | |
| 871 | /* |
| 872 | * This code doesn't work for defaults && !list->merge_lists: when |
| 873 | * params has no id=, and list has an element with !opts->id, it |
| 874 | * appends a new element instead of returning the existing opts. |
| 875 | * However, we got no use for this case. Guard against possible |
| 876 | * (if unlikely) future misuse: |
| 877 | */ |
| 878 | assert(!defaults || list->merge_lists); |
Markus Armbruster | 6d4cd40 | 2013-07-04 15:09:18 +0200 | [diff] [blame] | 879 | opts = qemu_opts_create(list, id, !defaults, &local_err); |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 880 | if (opts == NULL) { |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 881 | error_propagate(errp, local_err); |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 882 | return NULL; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 883 | } |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 884 | |
Markus Armbruster | d93ae3c | 2015-02-12 17:59:06 +0100 | [diff] [blame] | 885 | opts_do_parse(opts, params, firstname, defaults, &local_err); |
| 886 | if (local_err) { |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 887 | error_propagate(errp, local_err); |
Gerd Hoffmann | 96729cb | 2009-09-10 10:58:33 +0200 | [diff] [blame] | 888 | qemu_opts_del(opts); |
| 889 | return NULL; |
| 890 | } |
| 891 | |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 892 | return opts; |
| 893 | } |
| 894 | |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 895 | /** |
| 896 | * Create a QemuOpts in @list and with options parsed from @params. |
| 897 | * If @permit_abbrev, the first key=value in @params may omit key=, |
| 898 | * and is treated as if key was @list->implied_opt_name. |
Markus Armbruster | 70b9433 | 2015-02-13 12:50:26 +0100 | [diff] [blame] | 899 | * On error, store an error object through @errp if non-null. |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 900 | * Return the new QemuOpts on success, null pointer on error. |
| 901 | */ |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 902 | QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, |
Markus Armbruster | 70b9433 | 2015-02-13 12:50:26 +0100 | [diff] [blame] | 903 | bool permit_abbrev, Error **errp) |
| 904 | { |
| 905 | return opts_parse(list, params, permit_abbrev, false, errp); |
| 906 | } |
| 907 | |
| 908 | /** |
| 909 | * Create a QemuOpts in @list and with options parsed from @params. |
| 910 | * If @permit_abbrev, the first key=value in @params may omit key=, |
| 911 | * and is treated as if key was @list->implied_opt_name. |
| 912 | * Report errors with error_report_err(). This is inappropriate in |
| 913 | * QMP context. Do not use this function there! |
| 914 | * Return the new QemuOpts on success, null pointer on error. |
| 915 | */ |
| 916 | QemuOpts *qemu_opts_parse_noisily(QemuOptsList *list, const char *params, |
| 917 | bool permit_abbrev) |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 918 | { |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 919 | Error *err = NULL; |
| 920 | QemuOpts *opts; |
| 921 | |
| 922 | opts = opts_parse(list, params, permit_abbrev, false, &err); |
Markus Armbruster | 70b9433 | 2015-02-13 12:50:26 +0100 | [diff] [blame] | 923 | if (err) { |
| 924 | error_report_err(err); |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 925 | } |
| 926 | return opts; |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 927 | } |
| 928 | |
| 929 | void qemu_opts_set_defaults(QemuOptsList *list, const char *params, |
| 930 | int permit_abbrev) |
| 931 | { |
| 932 | QemuOpts *opts; |
| 933 | |
Markus Armbruster | 4f81273 | 2015-02-12 18:24:10 +0100 | [diff] [blame] | 934 | opts = opts_parse(list, params, permit_abbrev, true, NULL); |
Jan Kiszka | 4f6dd9a | 2012-01-27 19:54:54 +0100 | [diff] [blame] | 935 | assert(opts); |
| 936 | } |
| 937 | |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 938 | typedef struct OptsFromQDictState { |
| 939 | QemuOpts *opts; |
| 940 | Error **errp; |
| 941 | } OptsFromQDictState; |
| 942 | |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 943 | static void qemu_opts_from_qdict_1(const char *key, QObject *obj, void *opaque) |
| 944 | { |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 945 | OptsFromQDictState *state = opaque; |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 946 | char buf[32]; |
| 947 | const char *value; |
| 948 | int n; |
| 949 | |
Markus Armbruster | 2767cee | 2014-05-02 13:26:40 +0200 | [diff] [blame] | 950 | if (!strcmp(key, "id") || *state->errp) { |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 951 | return; |
| 952 | } |
| 953 | |
| 954 | switch (qobject_type(obj)) { |
| 955 | case QTYPE_QSTRING: |
| 956 | value = qstring_get_str(qobject_to_qstring(obj)); |
| 957 | break; |
| 958 | case QTYPE_QINT: |
| 959 | n = snprintf(buf, sizeof(buf), "%" PRId64, |
| 960 | qint_get_int(qobject_to_qint(obj))); |
| 961 | assert(n < sizeof(buf)); |
| 962 | value = buf; |
| 963 | break; |
| 964 | case QTYPE_QFLOAT: |
| 965 | n = snprintf(buf, sizeof(buf), "%.17g", |
| 966 | qfloat_get_double(qobject_to_qfloat(obj))); |
| 967 | assert(n < sizeof(buf)); |
| 968 | value = buf; |
| 969 | break; |
| 970 | case QTYPE_QBOOL: |
Blue Swirl | d35215f | 2010-03-18 20:48:19 +0000 | [diff] [blame] | 971 | pstrcpy(buf, sizeof(buf), |
Eric Blake | fc48ffc | 2015-05-15 16:24:59 -0600 | [diff] [blame] | 972 | qbool_get_bool(qobject_to_qbool(obj)) ? "on" : "off"); |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 973 | value = buf; |
| 974 | break; |
| 975 | default: |
| 976 | return; |
| 977 | } |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 978 | |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 979 | qemu_opt_set(state->opts, key, value, state->errp); |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 980 | } |
| 981 | |
| 982 | /* |
| 983 | * Create QemuOpts from a QDict. |
| 984 | * Use value of key "id" as ID if it exists and is a QString. |
| 985 | * Only QStrings, QInts, QFloats and QBools are copied. Entries with |
| 986 | * other types are silently ignored. |
| 987 | */ |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 988 | QemuOpts *qemu_opts_from_qdict(QemuOptsList *list, const QDict *qdict, |
| 989 | Error **errp) |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 990 | { |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 991 | OptsFromQDictState state; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 992 | Error *local_err = NULL; |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 993 | QemuOpts *opts; |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 994 | |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 995 | opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1, |
| 996 | &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 997 | if (local_err) { |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 998 | error_propagate(errp, local_err); |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 999 | return NULL; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 1000 | } |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 1001 | |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 1002 | assert(opts != NULL); |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 1003 | |
| 1004 | state.errp = &local_err; |
| 1005 | state.opts = opts; |
| 1006 | qdict_iter(qdict, qemu_opts_from_qdict_1, &state); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 1007 | if (local_err) { |
Luiz Capitulino | 4e89978 | 2012-04-18 17:24:01 -0300 | [diff] [blame] | 1008 | error_propagate(errp, local_err); |
| 1009 | qemu_opts_del(opts); |
| 1010 | return NULL; |
| 1011 | } |
| 1012 | |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 1013 | return opts; |
| 1014 | } |
| 1015 | |
| 1016 | /* |
Kevin Wolf | 376609c | 2013-03-15 10:35:05 +0100 | [diff] [blame] | 1017 | * Adds all QDict entries to the QemuOpts that can be added and removes them |
| 1018 | * from the QDict. When this function returns, the QDict contains only those |
| 1019 | * entries that couldn't be added to the QemuOpts. |
| 1020 | */ |
| 1021 | void qemu_opts_absorb_qdict(QemuOpts *opts, QDict *qdict, Error **errp) |
| 1022 | { |
| 1023 | const QDictEntry *entry, *next; |
| 1024 | |
| 1025 | entry = qdict_first(qdict); |
| 1026 | |
| 1027 | while (entry != NULL) { |
| 1028 | Error *local_err = NULL; |
| 1029 | OptsFromQDictState state = { |
| 1030 | .errp = &local_err, |
| 1031 | .opts = opts, |
| 1032 | }; |
| 1033 | |
| 1034 | next = qdict_next(qdict, entry); |
| 1035 | |
| 1036 | if (find_desc_by_name(opts->list->desc, entry->key)) { |
| 1037 | qemu_opts_from_qdict_1(entry->key, entry->value, &state); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 1038 | if (local_err) { |
Kevin Wolf | 376609c | 2013-03-15 10:35:05 +0100 | [diff] [blame] | 1039 | error_propagate(errp, local_err); |
| 1040 | return; |
| 1041 | } else { |
| 1042 | qdict_del(qdict, entry->key); |
| 1043 | } |
| 1044 | } |
| 1045 | |
| 1046 | entry = next; |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | /* |
Markus Armbruster | 01e7f18 | 2010-02-10 20:15:29 +0100 | [diff] [blame] | 1051 | * Convert from QemuOpts to QDict. |
| 1052 | * The QDict values are of type QString. |
| 1053 | * TODO We'll want to use types appropriate for opt->desc->type, but |
| 1054 | * this is enough for now. |
| 1055 | */ |
| 1056 | QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict) |
| 1057 | { |
| 1058 | QemuOpt *opt; |
| 1059 | QObject *val; |
| 1060 | |
| 1061 | if (!qdict) { |
| 1062 | qdict = qdict_new(); |
| 1063 | } |
| 1064 | if (opts->id) { |
| 1065 | qdict_put(qdict, "id", qstring_from_str(opts->id)); |
| 1066 | } |
| 1067 | QTAILQ_FOREACH(opt, &opts->head, next) { |
| 1068 | val = QOBJECT(qstring_from_str(opt->str)); |
| 1069 | qdict_put_obj(qdict, opt->name, val); |
| 1070 | } |
| 1071 | return qdict; |
| 1072 | } |
| 1073 | |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1074 | /* Validate parsed opts against descriptions where no |
| 1075 | * descriptions were provided in the QemuOptsList. |
| 1076 | */ |
Luiz Capitulino | 2995286 | 2012-04-12 11:58:57 -0300 | [diff] [blame] | 1077 | void qemu_opts_validate(QemuOpts *opts, const QemuOptDesc *desc, Error **errp) |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1078 | { |
| 1079 | QemuOpt *opt; |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 1080 | Error *local_err = NULL; |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1081 | |
Dong Xu Wang | db97ceb | 2012-12-06 14:47:19 +0800 | [diff] [blame] | 1082 | assert(opts_accepts_any(opts)); |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1083 | |
| 1084 | QTAILQ_FOREACH(opt, &opts->head, next) { |
Dong Xu Wang | db97ceb | 2012-12-06 14:47:19 +0800 | [diff] [blame] | 1085 | opt->desc = find_desc_by_name(desc, opt->name); |
| 1086 | if (!opt->desc) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1087 | error_setg(errp, QERR_INVALID_PARAMETER, opt->name); |
Luiz Capitulino | 2995286 | 2012-04-12 11:58:57 -0300 | [diff] [blame] | 1088 | return; |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1089 | } |
| 1090 | |
Luiz Capitulino | 6c51940 | 2012-03-21 15:21:26 -0300 | [diff] [blame] | 1091 | qemu_opt_parse(opt, &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 1092 | if (local_err) { |
Luiz Capitulino | 2995286 | 2012-04-12 11:58:57 -0300 | [diff] [blame] | 1093 | error_propagate(errp, local_err); |
| 1094 | return; |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1095 | } |
| 1096 | } |
Mark McLoughlin | 5dc519e | 2009-10-06 12:17:03 +0100 | [diff] [blame] | 1097 | } |
| 1098 | |
Markus Armbruster | a4c7367 | 2015-03-13 11:07:24 +0100 | [diff] [blame] | 1099 | /** |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 1100 | * For each member of @list, call @func(@opaque, member, @errp). |
Markus Armbruster | a4c7367 | 2015-03-13 11:07:24 +0100 | [diff] [blame] | 1101 | * Call it with the current location temporarily set to the member's. |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 1102 | * @func() may store an Error through @errp, but must return non-zero then. |
Markus Armbruster | a4c7367 | 2015-03-13 11:07:24 +0100 | [diff] [blame] | 1103 | * When @func() returns non-zero, break the loop and return that value. |
| 1104 | * Return zero when the loop completes. |
| 1105 | */ |
| 1106 | int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 1107 | void *opaque, Error **errp) |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 1108 | { |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 1109 | Location loc; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 1110 | QemuOpts *opts; |
Markus Armbruster | 37f3234 | 2016-04-27 16:29:07 +0200 | [diff] [blame] | 1111 | int rc = 0; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 1112 | |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 1113 | loc_push_none(&loc); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 1114 | QTAILQ_FOREACH(opts, &list->head, next) { |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 1115 | loc_restore(&opts->loc); |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 1116 | rc = func(opaque, opts, errp); |
Markus Armbruster | a4c7367 | 2015-03-13 11:07:24 +0100 | [diff] [blame] | 1117 | if (rc) { |
Markus Armbruster | 37f3234 | 2016-04-27 16:29:07 +0200 | [diff] [blame] | 1118 | break; |
Markus Armbruster | a4c7367 | 2015-03-13 11:07:24 +0100 | [diff] [blame] | 1119 | } |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 1120 | assert(!errp || !*errp); |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 1121 | } |
Markus Armbruster | 827b081 | 2010-02-18 19:46:49 +0100 | [diff] [blame] | 1122 | loc_pop(&loc); |
Markus Armbruster | 37f3234 | 2016-04-27 16:29:07 +0200 | [diff] [blame] | 1123 | return rc; |
Gerd Hoffmann | e27c88f | 2009-07-22 16:43:03 +0200 | [diff] [blame] | 1124 | } |
Chunyan Liu | 8559e45 | 2014-06-05 17:20:48 +0800 | [diff] [blame] | 1125 | |
| 1126 | static size_t count_opts_list(QemuOptsList *list) |
| 1127 | { |
| 1128 | QemuOptDesc *desc = NULL; |
| 1129 | size_t num_opts = 0; |
| 1130 | |
| 1131 | if (!list) { |
| 1132 | return 0; |
| 1133 | } |
| 1134 | |
| 1135 | desc = list->desc; |
| 1136 | while (desc && desc->name) { |
| 1137 | num_opts++; |
| 1138 | desc++; |
| 1139 | } |
| 1140 | |
| 1141 | return num_opts; |
| 1142 | } |
| 1143 | |
Chunyan Liu | 8559e45 | 2014-06-05 17:20:48 +0800 | [diff] [blame] | 1144 | void qemu_opts_free(QemuOptsList *list) |
| 1145 | { |
Chunyan Liu | 8559e45 | 2014-06-05 17:20:48 +0800 | [diff] [blame] | 1146 | g_free(list); |
| 1147 | } |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1148 | |
Chunyan Liu | c282e1f | 2014-06-05 17:21:11 +0800 | [diff] [blame] | 1149 | /* Realloc dst option list and append options from an option list (list) |
| 1150 | * to it. dst could be NULL or a malloced list. |
Chunyan Liu | 98d896d | 2014-06-05 17:21:12 +0800 | [diff] [blame] | 1151 | * The lifetime of dst must be shorter than the input list because the |
| 1152 | * QemuOptDesc->name, ->help, and ->def_value_str strings are shared. |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1153 | */ |
| 1154 | QemuOptsList *qemu_opts_append(QemuOptsList *dst, |
Chunyan Liu | c282e1f | 2014-06-05 17:21:11 +0800 | [diff] [blame] | 1155 | QemuOptsList *list) |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1156 | { |
| 1157 | size_t num_opts, num_dst_opts; |
| 1158 | QemuOptDesc *desc; |
| 1159 | bool need_init = false; |
Michal Privoznik | a760715 | 2014-06-25 10:38:41 +0200 | [diff] [blame] | 1160 | bool need_head_update; |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1161 | |
Chunyan Liu | c282e1f | 2014-06-05 17:21:11 +0800 | [diff] [blame] | 1162 | if (!list) { |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1163 | return dst; |
| 1164 | } |
| 1165 | |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1166 | /* If dst is NULL, after realloc, some area of dst should be initialized |
| 1167 | * before adding options to it. |
| 1168 | */ |
| 1169 | if (!dst) { |
| 1170 | need_init = true; |
Michal Privoznik | a760715 | 2014-06-25 10:38:41 +0200 | [diff] [blame] | 1171 | need_head_update = true; |
| 1172 | } else { |
| 1173 | /* Moreover, even if dst is not NULL, the realloc may move it to a |
| 1174 | * different address in which case we may get a stale tail pointer |
| 1175 | * in dst->head. */ |
| 1176 | need_head_update = QTAILQ_EMPTY(&dst->head); |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1177 | } |
| 1178 | |
| 1179 | num_opts = count_opts_list(dst); |
| 1180 | num_dst_opts = num_opts; |
| 1181 | num_opts += count_opts_list(list); |
| 1182 | dst = g_realloc(dst, sizeof(QemuOptsList) + |
| 1183 | (num_opts + 1) * sizeof(QemuOptDesc)); |
| 1184 | if (need_init) { |
| 1185 | dst->name = NULL; |
| 1186 | dst->implied_opt_name = NULL; |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1187 | dst->merge_lists = false; |
| 1188 | } |
Michal Privoznik | a760715 | 2014-06-25 10:38:41 +0200 | [diff] [blame] | 1189 | if (need_head_update) { |
| 1190 | QTAILQ_INIT(&dst->head); |
| 1191 | } |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1192 | dst->desc[num_dst_opts].name = NULL; |
| 1193 | |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1194 | /* append list->desc to dst->desc */ |
| 1195 | if (list) { |
| 1196 | desc = list->desc; |
| 1197 | while (desc && desc->name) { |
| 1198 | if (find_desc_by_name(dst->desc, desc->name) == NULL) { |
Chunyan Liu | 98d896d | 2014-06-05 17:21:12 +0800 | [diff] [blame] | 1199 | dst->desc[num_dst_opts++] = *desc; |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1200 | dst->desc[num_dst_opts].name = NULL; |
| 1201 | } |
| 1202 | desc++; |
| 1203 | } |
| 1204 | } |
| 1205 | |
Chunyan Liu | a1097a2 | 2014-06-05 17:20:49 +0800 | [diff] [blame] | 1206 | return dst; |
| 1207 | } |