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Commit | Line | Data |
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d3f24367 KW |
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 | ||
aafd7584 | 26 | #include "qemu/osdep.h" |
d3f24367 | 27 | |
da34e65c | 28 | #include "qapi/error.h" |
d3f24367 | 29 | #include "qemu-common.h" |
1de7afc9 | 30 | #include "qemu/error-report.h" |
6b673957 MA |
31 | #include "qapi/qmp/qbool.h" |
32 | #include "qapi/qmp/qdict.h" | |
15280c36 | 33 | #include "qapi/qmp/qnum.h" |
6b673957 | 34 | #include "qapi/qmp/qstring.h" |
7b1b5d19 | 35 | #include "qapi/qmp/qerror.h" |
1de7afc9 | 36 | #include "qemu/option_int.h" |
f348b6d1 VB |
37 | #include "qemu/cutils.h" |
38 | #include "qemu/id.h" | |
39 | #include "qemu/help_option.h" | |
d3f24367 KW |
40 | |
41 | /* | |
42 | * Extracts the name of an option from the parameter string (p points at the | |
43 | * first byte of the option name) | |
44 | * | |
45 | * The option name is delimited by delim (usually , or =) or the string end | |
e652714f DB |
46 | * and is copied into option. The caller is responsible for free'ing option |
47 | * when no longer required. | |
d3f24367 KW |
48 | * |
49 | * The return value is the position of the delimiter/zero byte after the option | |
50 | * name in p. | |
51 | */ | |
e652714f | 52 | static const char *get_opt_name(const char *p, char **option, char delim) |
d3f24367 | 53 | { |
e652714f | 54 | char *offset = strchr(p, delim); |
d3f24367 | 55 | |
e652714f DB |
56 | if (offset) { |
57 | *option = g_strndup(p, offset - p); | |
58 | return offset; | |
59 | } else { | |
60 | *option = g_strdup(p); | |
61 | return p + strlen(p); | |
d3f24367 | 62 | } |
d3f24367 KW |
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 | */ | |
950c4e6c | 73 | const char *get_opt_value(const char *p, char **value) |
d3f24367 | 74 | { |
950c4e6c DB |
75 | size_t capacity = 0, length; |
76 | const char *offset; | |
d3f24367 | 77 | |
0c2f6e7e | 78 | *value = NULL; |
950c4e6c | 79 | while (1) { |
5c99fa37 | 80 | offset = qemu_strchrnul(p, ','); |
950c4e6c DB |
81 | length = offset - p; |
82 | if (*offset != '\0' && *(offset + 1) == ',') { | |
83 | length++; | |
84 | } | |
0c2f6e7e DB |
85 | *value = g_renew(char, *value, capacity + length + 1); |
86 | strncpy(*value + capacity, p, length); | |
87 | (*value)[capacity + length] = '\0'; | |
950c4e6c DB |
88 | capacity += length; |
89 | if (*offset == '\0' || | |
90 | *(offset + 1) != ',') { | |
91 | break; | |
92 | } | |
93 | ||
94 | p += (offset - p) + 2; | |
d3f24367 | 95 | } |
d3f24367 | 96 | |
950c4e6c | 97 | return offset; |
d3f24367 KW |
98 | } |
99 | ||
cf62adfa LC |
100 | static void parse_option_bool(const char *name, const char *value, bool *ret, |
101 | Error **errp) | |
67b1355b | 102 | { |
8ee8409e | 103 | if (!strcmp(value, "on")) { |
67b1355b | 104 | *ret = 1; |
8ee8409e MA |
105 | } else if (!strcmp(value, "off")) { |
106 | *ret = 0; | |
107 | } else { | |
108 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, | |
109 | name, "'on' or 'off'"); | |
67b1355b | 110 | } |
67b1355b GH |
111 | } |
112 | ||
2f39df5b LC |
113 | static void parse_option_number(const char *name, const char *value, |
114 | uint64_t *ret, Error **errp) | |
e27c88fe | 115 | { |
e27c88fe | 116 | uint64_t number; |
3403e5eb | 117 | int err; |
e27c88fe | 118 | |
3403e5eb MA |
119 | err = qemu_strtou64(value, NULL, 0, &number); |
120 | if (err == -ERANGE) { | |
121 | error_setg(errp, "Value '%s' is too large for parameter '%s'", | |
122 | value, name); | |
123 | return; | |
124 | } | |
125 | if (err) { | |
c6bd8c70 | 126 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a number"); |
8ee8409e | 127 | return; |
e27c88fe | 128 | } |
8ee8409e | 129 | *ret = number; |
e27c88fe GH |
130 | } |
131 | ||
5e89db76 CL |
132 | static const QemuOptDesc *find_desc_by_name(const QemuOptDesc *desc, |
133 | const char *name) | |
134 | { | |
135 | int i; | |
136 | ||
137 | for (i = 0; desc[i].name != NULL; i++) { | |
138 | if (strcmp(desc[i].name, name) == 0) { | |
139 | return &desc[i]; | |
140 | } | |
141 | } | |
142 | ||
143 | return NULL; | |
144 | } | |
145 | ||
e8cd45c7 VL |
146 | void parse_option_size(const char *name, const char *value, |
147 | uint64_t *ret, Error **errp) | |
7695019b | 148 | { |
75cdcd15 MA |
149 | uint64_t size; |
150 | int err; | |
7695019b | 151 | |
75cdcd15 MA |
152 | err = qemu_strtosz(value, NULL, &size); |
153 | if (err == -ERANGE) { | |
9e19ad4e | 154 | error_setg(errp, "Value '%s' is out of range for parameter '%s'", |
75cdcd15 | 155 | value, name); |
8ee8409e MA |
156 | return; |
157 | } | |
75cdcd15 MA |
158 | if (err) { |
159 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, | |
160 | "a non-negative number below 2^64"); | |
161 | error_append_hint(errp, "Optional suffix k, M, G, T, P or E means" | |
162 | " kilo-, mega-, giga-, tera-, peta-\n" | |
163 | "and exabytes, respectively.\n"); | |
8ee8409e | 164 | return; |
7695019b | 165 | } |
75cdcd15 | 166 | *ret = size; |
7695019b GH |
167 | } |
168 | ||
7cc07ab8 KW |
169 | bool has_help_option(const char *param) |
170 | { | |
7cc07ab8 KW |
171 | const char *p = param; |
172 | bool result = false; | |
173 | ||
950c4e6c DB |
174 | while (*p && !result) { |
175 | char *value; | |
176 | ||
177 | p = get_opt_value(p, &value); | |
7cc07ab8 KW |
178 | if (*p) { |
179 | p++; | |
180 | } | |
181 | ||
950c4e6c DB |
182 | result = is_help_option(value); |
183 | g_free(value); | |
7cc07ab8 KW |
184 | } |
185 | ||
7cc07ab8 KW |
186 | return result; |
187 | } | |
188 | ||
950c4e6c | 189 | bool is_valid_option_list(const char *p) |
7cc07ab8 | 190 | { |
950c4e6c DB |
191 | char *value = NULL; |
192 | bool result = false; | |
7cc07ab8 KW |
193 | |
194 | while (*p) { | |
950c4e6c DB |
195 | p = get_opt_value(p, &value); |
196 | if ((*p && !*++p) || | |
197 | (!*value || *value == ',')) { | |
7cc07ab8 KW |
198 | goto out; |
199 | } | |
200 | ||
950c4e6c DB |
201 | g_free(value); |
202 | value = NULL; | |
7cc07ab8 KW |
203 | } |
204 | ||
950c4e6c | 205 | result = true; |
7cc07ab8 | 206 | out: |
950c4e6c | 207 | g_free(value); |
7cc07ab8 KW |
208 | return result; |
209 | } | |
210 | ||
504189a9 CL |
211 | void qemu_opts_print_help(QemuOptsList *list) |
212 | { | |
213 | QemuOptDesc *desc; | |
214 | ||
215 | assert(list); | |
216 | desc = list->desc; | |
504189a9 CL |
217 | while (desc && desc->name) { |
218 | printf("%-16s %s\n", desc->name, | |
219 | desc->help ? desc->help : "No description available"); | |
220 | desc++; | |
221 | } | |
222 | } | |
e27c88fe GH |
223 | /* ------------------------------------------------------------------ */ |
224 | ||
74c3c197 | 225 | QemuOpt *qemu_opt_find(QemuOpts *opts, const char *name) |
e27c88fe GH |
226 | { |
227 | QemuOpt *opt; | |
228 | ||
dc9ca4ba | 229 | QTAILQ_FOREACH_REVERSE(opt, &opts->head, QemuOptHead, next) { |
e27c88fe GH |
230 | if (strcmp(opt->name, name) != 0) |
231 | continue; | |
232 | return opt; | |
233 | } | |
234 | return NULL; | |
235 | } | |
236 | ||
fc345512 CL |
237 | static void qemu_opt_del(QemuOpt *opt) |
238 | { | |
239 | QTAILQ_REMOVE(&opt->opts->head, opt, next); | |
240 | g_free(opt->name); | |
241 | g_free(opt->str); | |
242 | g_free(opt); | |
243 | } | |
244 | ||
782730b0 CL |
245 | /* qemu_opt_set allows many settings for the same option. |
246 | * This function deletes all settings for an option. | |
247 | */ | |
248 | static void qemu_opt_del_all(QemuOpts *opts, const char *name) | |
249 | { | |
250 | QemuOpt *opt, *next_opt; | |
251 | ||
252 | QTAILQ_FOREACH_SAFE(opt, &opts->head, next, next_opt) { | |
253 | if (!strcmp(opt->name, name)) { | |
254 | qemu_opt_del(opt); | |
255 | } | |
256 | } | |
257 | } | |
258 | ||
e27c88fe GH |
259 | const char *qemu_opt_get(QemuOpts *opts, const char *name) |
260 | { | |
435db4cf CL |
261 | QemuOpt *opt; |
262 | ||
263 | if (opts == NULL) { | |
264 | return NULL; | |
265 | } | |
09722032 | 266 | |
435db4cf | 267 | opt = qemu_opt_find(opts, name); |
09722032 CL |
268 | if (!opt) { |
269 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); | |
270 | if (desc && desc->def_value_str) { | |
271 | return desc->def_value_str; | |
272 | } | |
273 | } | |
e27c88fe GH |
274 | return opt ? opt->str : NULL; |
275 | } | |
276 | ||
e998e209 DB |
277 | void qemu_opt_iter_init(QemuOptsIter *iter, QemuOpts *opts, const char *name) |
278 | { | |
279 | iter->opts = opts; | |
280 | iter->opt = QTAILQ_FIRST(&opts->head); | |
281 | iter->name = name; | |
282 | } | |
283 | ||
284 | const char *qemu_opt_iter_next(QemuOptsIter *iter) | |
285 | { | |
286 | QemuOpt *ret = iter->opt; | |
287 | if (iter->name) { | |
288 | while (ret && !g_str_equal(iter->name, ret->name)) { | |
289 | ret = QTAILQ_NEXT(ret, next); | |
290 | } | |
291 | } | |
292 | iter->opt = ret ? QTAILQ_NEXT(ret, next) : NULL; | |
293 | return ret ? ret->str : NULL; | |
294 | } | |
295 | ||
782730b0 CL |
296 | /* Get a known option (or its default) and remove it from the list |
297 | * all in one action. Return a malloced string of the option value. | |
298 | * Result must be freed by caller with g_free(). | |
299 | */ | |
300 | char *qemu_opt_get_del(QemuOpts *opts, const char *name) | |
301 | { | |
302 | QemuOpt *opt; | |
303 | const QemuOptDesc *desc; | |
304 | char *str = NULL; | |
305 | ||
306 | if (opts == NULL) { | |
307 | return NULL; | |
308 | } | |
309 | ||
310 | opt = qemu_opt_find(opts, name); | |
311 | if (!opt) { | |
312 | desc = find_desc_by_name(opts->list->desc, name); | |
313 | if (desc && desc->def_value_str) { | |
314 | str = g_strdup(desc->def_value_str); | |
315 | } | |
316 | return str; | |
317 | } | |
318 | str = opt->str; | |
319 | opt->str = NULL; | |
320 | qemu_opt_del_all(opts, name); | |
321 | return str; | |
322 | } | |
323 | ||
c8057f95 PM |
324 | bool qemu_opt_has_help_opt(QemuOpts *opts) |
325 | { | |
326 | QemuOpt *opt; | |
327 | ||
328 | QTAILQ_FOREACH_REVERSE(opt, &opts->head, QemuOptHead, next) { | |
329 | if (is_help_option(opt->name)) { | |
330 | return true; | |
331 | } | |
332 | } | |
333 | return false; | |
334 | } | |
335 | ||
782730b0 CL |
336 | static bool qemu_opt_get_bool_helper(QemuOpts *opts, const char *name, |
337 | bool defval, bool del) | |
e27c88fe | 338 | { |
435db4cf | 339 | QemuOpt *opt; |
782730b0 | 340 | bool ret = defval; |
e27c88fe | 341 | |
435db4cf CL |
342 | if (opts == NULL) { |
343 | return ret; | |
344 | } | |
345 | ||
346 | opt = qemu_opt_find(opts, name); | |
09722032 CL |
347 | if (opt == NULL) { |
348 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); | |
349 | if (desc && desc->def_value_str) { | |
782730b0 | 350 | parse_option_bool(name, desc->def_value_str, &ret, &error_abort); |
09722032 | 351 | } |
782730b0 | 352 | return ret; |
09722032 | 353 | } |
e27c88fe | 354 | assert(opt->desc && opt->desc->type == QEMU_OPT_BOOL); |
782730b0 CL |
355 | ret = opt->value.boolean; |
356 | if (del) { | |
357 | qemu_opt_del_all(opts, name); | |
358 | } | |
359 | return ret; | |
e27c88fe GH |
360 | } |
361 | ||
782730b0 CL |
362 | bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval) |
363 | { | |
364 | return qemu_opt_get_bool_helper(opts, name, defval, false); | |
365 | } | |
366 | ||
367 | bool qemu_opt_get_bool_del(QemuOpts *opts, const char *name, bool defval) | |
368 | { | |
369 | return qemu_opt_get_bool_helper(opts, name, defval, true); | |
370 | } | |
371 | ||
372 | static uint64_t qemu_opt_get_number_helper(QemuOpts *opts, const char *name, | |
373 | uint64_t defval, bool del) | |
e27c88fe | 374 | { |
435db4cf | 375 | QemuOpt *opt; |
782730b0 | 376 | uint64_t ret = defval; |
e27c88fe | 377 | |
435db4cf CL |
378 | if (opts == NULL) { |
379 | return ret; | |
380 | } | |
381 | ||
382 | opt = qemu_opt_find(opts, name); | |
09722032 CL |
383 | if (opt == NULL) { |
384 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); | |
385 | if (desc && desc->def_value_str) { | |
782730b0 | 386 | parse_option_number(name, desc->def_value_str, &ret, &error_abort); |
09722032 | 387 | } |
782730b0 | 388 | return ret; |
09722032 | 389 | } |
e27c88fe | 390 | assert(opt->desc && opt->desc->type == QEMU_OPT_NUMBER); |
782730b0 CL |
391 | ret = opt->value.uint; |
392 | if (del) { | |
393 | qemu_opt_del_all(opts, name); | |
394 | } | |
395 | return ret; | |
e27c88fe GH |
396 | } |
397 | ||
782730b0 CL |
398 | uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval) |
399 | { | |
400 | return qemu_opt_get_number_helper(opts, name, defval, false); | |
401 | } | |
402 | ||
403 | uint64_t qemu_opt_get_number_del(QemuOpts *opts, const char *name, | |
404 | uint64_t defval) | |
405 | { | |
406 | return qemu_opt_get_number_helper(opts, name, defval, true); | |
407 | } | |
408 | ||
409 | static uint64_t qemu_opt_get_size_helper(QemuOpts *opts, const char *name, | |
410 | uint64_t defval, bool del) | |
e27c88fe | 411 | { |
435db4cf | 412 | QemuOpt *opt; |
782730b0 | 413 | uint64_t ret = defval; |
e27c88fe | 414 | |
435db4cf CL |
415 | if (opts == NULL) { |
416 | return ret; | |
417 | } | |
418 | ||
419 | opt = qemu_opt_find(opts, name); | |
09722032 CL |
420 | if (opt == NULL) { |
421 | const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); | |
422 | if (desc && desc->def_value_str) { | |
782730b0 | 423 | parse_option_size(name, desc->def_value_str, &ret, &error_abort); |
09722032 | 424 | } |
782730b0 | 425 | return ret; |
09722032 | 426 | } |
e27c88fe | 427 | assert(opt->desc && opt->desc->type == QEMU_OPT_SIZE); |
782730b0 CL |
428 | ret = opt->value.uint; |
429 | if (del) { | |
430 | qemu_opt_del_all(opts, name); | |
431 | } | |
432 | return ret; | |
433 | } | |
434 | ||
435 | uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval) | |
436 | { | |
437 | return qemu_opt_get_size_helper(opts, name, defval, false); | |
438 | } | |
439 | ||
440 | uint64_t qemu_opt_get_size_del(QemuOpts *opts, const char *name, | |
441 | uint64_t defval) | |
442 | { | |
443 | return qemu_opt_get_size_helper(opts, name, defval, true); | |
e27c88fe GH |
444 | } |
445 | ||
6c519404 | 446 | static void qemu_opt_parse(QemuOpt *opt, Error **errp) |
e27c88fe GH |
447 | { |
448 | if (opt->desc == NULL) | |
6c519404 | 449 | return; |
2f39df5b | 450 | |
e27c88fe GH |
451 | switch (opt->desc->type) { |
452 | case QEMU_OPT_STRING: | |
453 | /* nothing */ | |
6c519404 | 454 | return; |
e27c88fe | 455 | case QEMU_OPT_BOOL: |
6c519404 | 456 | parse_option_bool(opt->name, opt->str, &opt->value.boolean, errp); |
cf62adfa | 457 | break; |
e27c88fe | 458 | case QEMU_OPT_NUMBER: |
6c519404 | 459 | parse_option_number(opt->name, opt->str, &opt->value.uint, errp); |
2f39df5b | 460 | break; |
e27c88fe | 461 | case QEMU_OPT_SIZE: |
6c519404 | 462 | parse_option_size(opt->name, opt->str, &opt->value.uint, errp); |
ec7b2ccb | 463 | break; |
e27c88fe GH |
464 | default: |
465 | abort(); | |
466 | } | |
467 | } | |
468 | ||
c474ced8 DXW |
469 | static bool opts_accepts_any(const QemuOpts *opts) |
470 | { | |
471 | return opts->list->desc[0].name == NULL; | |
472 | } | |
473 | ||
0dd6c526 KW |
474 | int qemu_opt_unset(QemuOpts *opts, const char *name) |
475 | { | |
476 | QemuOpt *opt = qemu_opt_find(opts, name); | |
477 | ||
478 | assert(opts_accepts_any(opts)); | |
479 | ||
480 | if (opt == NULL) { | |
481 | return -1; | |
482 | } else { | |
483 | qemu_opt_del(opt); | |
484 | return 0; | |
485 | } | |
486 | } | |
487 | ||
950c4e6c | 488 | static void opt_set(QemuOpts *opts, const char *name, char *value, |
e05979d0 | 489 | bool prepend, bool *invalidp, Error **errp) |
c474ced8 DXW |
490 | { |
491 | QemuOpt *opt; | |
492 | const QemuOptDesc *desc; | |
493 | Error *local_err = NULL; | |
494 | ||
495 | desc = find_desc_by_name(opts->list->desc, name); | |
496 | if (!desc && !opts_accepts_any(opts)) { | |
950c4e6c | 497 | g_free(value); |
c6bd8c70 | 498 | error_setg(errp, QERR_INVALID_PARAMETER, name); |
e05979d0 MAL |
499 | if (invalidp) { |
500 | *invalidp = true; | |
501 | } | |
c474ced8 | 502 | return; |
e27c88fe | 503 | } |
dc9ca4ba | 504 | |
7267c094 AL |
505 | opt = g_malloc0(sizeof(*opt)); |
506 | opt->name = g_strdup(name); | |
dc9ca4ba | 507 | opt->opts = opts; |
4f6dd9af JK |
508 | if (prepend) { |
509 | QTAILQ_INSERT_HEAD(&opts->head, opt, next); | |
510 | } else { | |
511 | QTAILQ_INSERT_TAIL(&opts->head, opt, next); | |
512 | } | |
c474ced8 | 513 | opt->desc = desc; |
950c4e6c | 514 | opt->str = value; |
6c519404 | 515 | qemu_opt_parse(opt, &local_err); |
84d18f06 | 516 | if (local_err) { |
584d4064 | 517 | error_propagate(errp, local_err); |
e27c88fe | 518 | qemu_opt_del(opt); |
e27c88fe | 519 | } |
e27c88fe GH |
520 | } |
521 | ||
f43e47db MA |
522 | void qemu_opt_set(QemuOpts *opts, const char *name, const char *value, |
523 | Error **errp) | |
384f2139 | 524 | { |
e05979d0 | 525 | opt_set(opts, name, g_strdup(value), false, NULL, errp); |
384f2139 LC |
526 | } |
527 | ||
cccb7967 MA |
528 | void qemu_opt_set_bool(QemuOpts *opts, const char *name, bool val, |
529 | Error **errp) | |
f02b77c9 MK |
530 | { |
531 | QemuOpt *opt; | |
532 | const QemuOptDesc *desc = opts->list->desc; | |
f02b77c9 | 533 | |
ad718d01 DXW |
534 | opt = g_malloc0(sizeof(*opt)); |
535 | opt->desc = find_desc_by_name(desc, name); | |
536 | if (!opt->desc && !opts_accepts_any(opts)) { | |
c6bd8c70 | 537 | error_setg(errp, QERR_INVALID_PARAMETER, name); |
ad718d01 | 538 | g_free(opt); |
cccb7967 | 539 | return; |
f02b77c9 MK |
540 | } |
541 | ||
f02b77c9 MK |
542 | opt->name = g_strdup(name); |
543 | opt->opts = opts; | |
f02b77c9 | 544 | opt->value.boolean = !!val; |
ad718d01 DXW |
545 | opt->str = g_strdup(val ? "on" : "off"); |
546 | QTAILQ_INSERT_TAIL(&opts->head, opt, next); | |
f02b77c9 MK |
547 | } |
548 | ||
39101f25 MA |
549 | void qemu_opt_set_number(QemuOpts *opts, const char *name, int64_t val, |
550 | Error **errp) | |
b83c18e2 DXW |
551 | { |
552 | QemuOpt *opt; | |
553 | const QemuOptDesc *desc = opts->list->desc; | |
554 | ||
555 | opt = g_malloc0(sizeof(*opt)); | |
556 | opt->desc = find_desc_by_name(desc, name); | |
557 | if (!opt->desc && !opts_accepts_any(opts)) { | |
c6bd8c70 | 558 | error_setg(errp, QERR_INVALID_PARAMETER, name); |
b83c18e2 | 559 | g_free(opt); |
39101f25 | 560 | return; |
b83c18e2 DXW |
561 | } |
562 | ||
563 | opt->name = g_strdup(name); | |
564 | opt->opts = opts; | |
565 | opt->value.uint = val; | |
566 | opt->str = g_strdup_printf("%" PRId64, val); | |
567 | QTAILQ_INSERT_TAIL(&opts->head, opt, next); | |
b83c18e2 DXW |
568 | } |
569 | ||
1640b200 | 570 | /** |
71df1d83 MA |
571 | * For each member of @opts, call @func(@opaque, name, value, @errp). |
572 | * @func() may store an Error through @errp, but must return non-zero then. | |
1640b200 MA |
573 | * When @func() returns non-zero, break the loop and return that value. |
574 | * Return zero when the loop completes. | |
575 | */ | |
71df1d83 MA |
576 | int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque, |
577 | Error **errp) | |
48026075 GH |
578 | { |
579 | QemuOpt *opt; | |
1640b200 | 580 | int rc; |
48026075 | 581 | |
72cf2d4f | 582 | QTAILQ_FOREACH(opt, &opts->head, next) { |
71df1d83 | 583 | rc = func(opaque, opt->name, opt->str, errp); |
1640b200 MA |
584 | if (rc) { |
585 | return rc; | |
586 | } | |
71df1d83 | 587 | assert(!errp || !*errp); |
48026075 | 588 | } |
1640b200 | 589 | return 0; |
48026075 GH |
590 | } |
591 | ||
e27c88fe GH |
592 | QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id) |
593 | { | |
594 | QemuOpts *opts; | |
595 | ||
72cf2d4f | 596 | QTAILQ_FOREACH(opts, &list->head, next) { |
96bc97eb MA |
597 | if (!opts->id && !id) { |
598 | return opts; | |
e27c88fe | 599 | } |
96bc97eb MA |
600 | if (opts->id && id && !strcmp(opts->id, id)) { |
601 | return opts; | |
e27c88fe | 602 | } |
e27c88fe GH |
603 | } |
604 | return NULL; | |
605 | } | |
606 | ||
8be7e7e4 LC |
607 | QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, |
608 | int fail_if_exists, Error **errp) | |
e27c88fe GH |
609 | { |
610 | QemuOpts *opts = NULL; | |
611 | ||
612 | if (id) { | |
f5bebbbb | 613 | if (!id_wellformed(id)) { |
c6bd8c70 MA |
614 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "id", |
615 | "an identifier"); | |
50b7b000 | 616 | error_append_hint(errp, "Identifiers consist of letters, digits, " |
543202c0 | 617 | "'-', '.', '_', starting with a letter.\n"); |
b560a9ab MA |
618 | return NULL; |
619 | } | |
e27c88fe GH |
620 | opts = qemu_opts_find(list, id); |
621 | if (opts != NULL) { | |
da93318a | 622 | if (fail_if_exists && !list->merge_lists) { |
f231b88d | 623 | error_setg(errp, "Duplicate ID '%s' for %s", id, list->name); |
e27c88fe GH |
624 | return NULL; |
625 | } else { | |
626 | return opts; | |
627 | } | |
628 | } | |
da93318a PM |
629 | } else if (list->merge_lists) { |
630 | opts = qemu_opts_find(list, NULL); | |
631 | if (opts) { | |
632 | return opts; | |
633 | } | |
e27c88fe | 634 | } |
7267c094 | 635 | opts = g_malloc0(sizeof(*opts)); |
c64f50d1 | 636 | opts->id = g_strdup(id); |
e27c88fe | 637 | opts->list = list; |
827b0813 | 638 | loc_save(&opts->loc); |
72cf2d4f BS |
639 | QTAILQ_INIT(&opts->head); |
640 | QTAILQ_INSERT_TAIL(&list->head, opts, next); | |
e27c88fe GH |
641 | return opts; |
642 | } | |
643 | ||
bb67ab02 MA |
644 | void qemu_opts_reset(QemuOptsList *list) |
645 | { | |
646 | QemuOpts *opts, *next_opts; | |
647 | ||
648 | QTAILQ_FOREACH_SAFE(opts, &list->head, next, next_opts) { | |
649 | qemu_opts_del(opts); | |
650 | } | |
651 | } | |
652 | ||
94ac7268 MA |
653 | void qemu_opts_loc_restore(QemuOpts *opts) |
654 | { | |
655 | loc_restore(&opts->loc); | |
656 | } | |
657 | ||
79087c78 MA |
658 | void qemu_opts_set(QemuOptsList *list, const char *id, |
659 | const char *name, const char *value, Error **errp) | |
e27c88fe GH |
660 | { |
661 | QemuOpts *opts; | |
8be7e7e4 | 662 | Error *local_err = NULL; |
e27c88fe | 663 | |
8be7e7e4 | 664 | opts = qemu_opts_create(list, id, 1, &local_err); |
84d18f06 | 665 | if (local_err) { |
79087c78 MA |
666 | error_propagate(errp, local_err); |
667 | return; | |
e27c88fe | 668 | } |
f43e47db | 669 | qemu_opt_set(opts, name, value, errp); |
e27c88fe GH |
670 | } |
671 | ||
48026075 GH |
672 | const char *qemu_opts_id(QemuOpts *opts) |
673 | { | |
674 | return opts->id; | |
675 | } | |
676 | ||
326642bc KW |
677 | /* The id string will be g_free()d by qemu_opts_del */ |
678 | void qemu_opts_set_id(QemuOpts *opts, char *id) | |
679 | { | |
680 | opts->id = id; | |
681 | } | |
682 | ||
e27c88fe GH |
683 | void qemu_opts_del(QemuOpts *opts) |
684 | { | |
685 | QemuOpt *opt; | |
686 | ||
4782183d CL |
687 | if (opts == NULL) { |
688 | return; | |
689 | } | |
690 | ||
e27c88fe | 691 | for (;;) { |
72cf2d4f | 692 | opt = QTAILQ_FIRST(&opts->head); |
e27c88fe GH |
693 | if (opt == NULL) |
694 | break; | |
695 | qemu_opt_del(opt); | |
696 | } | |
72cf2d4f | 697 | QTAILQ_REMOVE(&opts->list->head, opts, next); |
7267c094 AL |
698 | g_free(opts->id); |
699 | g_free(opts); | |
e27c88fe GH |
700 | } |
701 | ||
fe646693 KZ |
702 | /* print value, escaping any commas in value */ |
703 | static void escaped_print(const char *value) | |
704 | { | |
705 | const char *ptr; | |
706 | ||
707 | for (ptr = value; *ptr; ++ptr) { | |
708 | if (*ptr == ',') { | |
709 | putchar(','); | |
710 | } | |
711 | putchar(*ptr); | |
712 | } | |
713 | } | |
714 | ||
715 | void qemu_opts_print(QemuOpts *opts, const char *separator) | |
e27c88fe GH |
716 | { |
717 | QemuOpt *opt; | |
09722032 | 718 | QemuOptDesc *desc = opts->list->desc; |
fe646693 KZ |
719 | const char *sep = ""; |
720 | ||
721 | if (opts->id) { | |
722 | printf("id=%s", opts->id); /* passed id_wellformed -> no commas */ | |
723 | sep = separator; | |
724 | } | |
e27c88fe | 725 | |
09722032 CL |
726 | if (desc[0].name == NULL) { |
727 | QTAILQ_FOREACH(opt, &opts->head, next) { | |
fe646693 KZ |
728 | printf("%s%s=", sep, opt->name); |
729 | escaped_print(opt->str); | |
730 | sep = separator; | |
09722032 CL |
731 | } |
732 | return; | |
733 | } | |
734 | for (; desc && desc->name; desc++) { | |
735 | const char *value; | |
da78e382 | 736 | opt = qemu_opt_find(opts, desc->name); |
09722032 CL |
737 | |
738 | value = opt ? opt->str : desc->def_value_str; | |
739 | if (!value) { | |
740 | continue; | |
741 | } | |
742 | if (desc->type == QEMU_OPT_STRING) { | |
fe646693 KZ |
743 | printf("%s%s=", sep, desc->name); |
744 | escaped_print(value); | |
09722032 CL |
745 | } else if ((desc->type == QEMU_OPT_SIZE || |
746 | desc->type == QEMU_OPT_NUMBER) && opt) { | |
43c5d8f8 | 747 | printf("%s%s=%" PRId64, sep, desc->name, opt->value.uint); |
09722032 | 748 | } else { |
43c5d8f8 | 749 | printf("%s%s=%s", sep, desc->name, value); |
09722032 | 750 | } |
fe646693 | 751 | sep = separator; |
e27c88fe | 752 | } |
e27c88fe GH |
753 | } |
754 | ||
d93ae3cf | 755 | static void opts_do_parse(QemuOpts *opts, const char *params, |
e05979d0 MAL |
756 | const char *firstname, bool prepend, |
757 | bool *invalidp, Error **errp) | |
e27c88fe | 758 | { |
e652714f | 759 | char *option = NULL; |
950c4e6c | 760 | char *value = NULL; |
e27c88fe | 761 | const char *p,*pe,*pc; |
584d4064 | 762 | Error *local_err = NULL; |
e27c88fe | 763 | |
2cfa571f | 764 | for (p = params; *p != '\0'; p++) { |
e27c88fe GH |
765 | pe = strchr(p, '='); |
766 | pc = strchr(p, ','); | |
767 | if (!pe || (pc && pc < pe)) { | |
768 | /* found "foo,more" */ | |
769 | if (p == params && firstname) { | |
770 | /* implicitly named first option */ | |
e652714f | 771 | option = g_strdup(firstname); |
950c4e6c | 772 | p = get_opt_value(p, &value); |
e27c88fe GH |
773 | } else { |
774 | /* option without value, probably a flag */ | |
e652714f | 775 | p = get_opt_name(p, &option, ','); |
96729cbd | 776 | if (strncmp(option, "no", 2) == 0) { |
e27c88fe | 777 | memmove(option, option+2, strlen(option+2)+1); |
950c4e6c | 778 | value = g_strdup("off"); |
e27c88fe | 779 | } else { |
950c4e6c | 780 | value = g_strdup("on"); |
e27c88fe GH |
781 | } |
782 | } | |
783 | } else { | |
784 | /* found "foo=bar,more" */ | |
e652714f DB |
785 | p = get_opt_name(p, &option, '='); |
786 | assert(*p == '='); | |
e27c88fe | 787 | p++; |
950c4e6c | 788 | p = get_opt_value(p, &value); |
e27c88fe GH |
789 | } |
790 | if (strcmp(option, "id") != 0) { | |
791 | /* store and parse */ | |
e05979d0 | 792 | opt_set(opts, option, value, prepend, invalidp, &local_err); |
950c4e6c | 793 | value = NULL; |
84d18f06 | 794 | if (local_err) { |
d93ae3cf | 795 | error_propagate(errp, local_err); |
e652714f | 796 | goto cleanup; |
e27c88fe GH |
797 | } |
798 | } | |
799 | if (*p != ',') { | |
800 | break; | |
801 | } | |
e652714f | 802 | g_free(option); |
950c4e6c DB |
803 | g_free(value); |
804 | option = value = NULL; | |
e27c88fe | 805 | } |
e652714f DB |
806 | |
807 | cleanup: | |
808 | g_free(option); | |
950c4e6c | 809 | g_free(value); |
96729cbd GH |
810 | } |
811 | ||
dc523cd3 MA |
812 | /** |
813 | * Store options parsed from @params into @opts. | |
814 | * If @firstname is non-null, the first key=value in @params may omit | |
815 | * key=, and is treated as if key was @firstname. | |
816 | * On error, store an error object through @errp if non-null. | |
817 | */ | |
818 | void qemu_opts_do_parse(QemuOpts *opts, const char *params, | |
819 | const char *firstname, Error **errp) | |
4f6dd9af | 820 | { |
e05979d0 | 821 | opts_do_parse(opts, params, firstname, false, NULL, errp); |
4f6dd9af JK |
822 | } |
823 | ||
824 | static QemuOpts *opts_parse(QemuOptsList *list, const char *params, | |
e05979d0 MAL |
825 | bool permit_abbrev, bool defaults, |
826 | bool *invalidp, Error **errp) | |
96729cbd | 827 | { |
8212c64f | 828 | const char *firstname; |
950c4e6c | 829 | char *id = NULL; |
96729cbd GH |
830 | const char *p; |
831 | QemuOpts *opts; | |
8be7e7e4 | 832 | Error *local_err = NULL; |
96729cbd | 833 | |
8212c64f MA |
834 | assert(!permit_abbrev || list->implied_opt_name); |
835 | firstname = permit_abbrev ? list->implied_opt_name : NULL; | |
836 | ||
96729cbd | 837 | if (strncmp(params, "id=", 3) == 0) { |
950c4e6c | 838 | get_opt_value(params + 3, &id); |
96729cbd | 839 | } else if ((p = strstr(params, ",id=")) != NULL) { |
950c4e6c | 840 | get_opt_value(p + 4, &id); |
96729cbd | 841 | } |
cb77d192 MA |
842 | |
843 | /* | |
844 | * This code doesn't work for defaults && !list->merge_lists: when | |
845 | * params has no id=, and list has an element with !opts->id, it | |
846 | * appends a new element instead of returning the existing opts. | |
847 | * However, we got no use for this case. Guard against possible | |
848 | * (if unlikely) future misuse: | |
849 | */ | |
850 | assert(!defaults || list->merge_lists); | |
6d4cd408 | 851 | opts = qemu_opts_create(list, id, !defaults, &local_err); |
950c4e6c | 852 | g_free(id); |
8be7e7e4 | 853 | if (opts == NULL) { |
4f81273d | 854 | error_propagate(errp, local_err); |
96729cbd | 855 | return NULL; |
8be7e7e4 | 856 | } |
96729cbd | 857 | |
e05979d0 | 858 | opts_do_parse(opts, params, firstname, defaults, invalidp, &local_err); |
d93ae3cf | 859 | if (local_err) { |
4f81273d | 860 | error_propagate(errp, local_err); |
96729cbd GH |
861 | qemu_opts_del(opts); |
862 | return NULL; | |
863 | } | |
864 | ||
e27c88fe GH |
865 | return opts; |
866 | } | |
867 | ||
4f81273d MA |
868 | /** |
869 | * Create a QemuOpts in @list and with options parsed from @params. | |
870 | * If @permit_abbrev, the first key=value in @params may omit key=, | |
871 | * and is treated as if key was @list->implied_opt_name. | |
70b94331 | 872 | * On error, store an error object through @errp if non-null. |
4f81273d MA |
873 | * Return the new QemuOpts on success, null pointer on error. |
874 | */ | |
4f6dd9af | 875 | QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, |
70b94331 MA |
876 | bool permit_abbrev, Error **errp) |
877 | { | |
e05979d0 | 878 | return opts_parse(list, params, permit_abbrev, false, NULL, errp); |
70b94331 MA |
879 | } |
880 | ||
881 | /** | |
882 | * Create a QemuOpts in @list and with options parsed from @params. | |
883 | * If @permit_abbrev, the first key=value in @params may omit key=, | |
884 | * and is treated as if key was @list->implied_opt_name. | |
885 | * Report errors with error_report_err(). This is inappropriate in | |
886 | * QMP context. Do not use this function there! | |
887 | * Return the new QemuOpts on success, null pointer on error. | |
888 | */ | |
889 | QemuOpts *qemu_opts_parse_noisily(QemuOptsList *list, const char *params, | |
890 | bool permit_abbrev) | |
4f6dd9af | 891 | { |
4f81273d MA |
892 | Error *err = NULL; |
893 | QemuOpts *opts; | |
e05979d0 | 894 | bool invalidp = false; |
4f81273d | 895 | |
e05979d0 | 896 | opts = opts_parse(list, params, permit_abbrev, false, &invalidp, &err); |
70b94331 | 897 | if (err) { |
e05979d0 MAL |
898 | if (invalidp && has_help_option(params)) { |
899 | qemu_opts_print_help(list); | |
900 | error_free(err); | |
901 | } else { | |
902 | error_report_err(err); | |
903 | } | |
4f81273d MA |
904 | } |
905 | return opts; | |
4f6dd9af JK |
906 | } |
907 | ||
908 | void qemu_opts_set_defaults(QemuOptsList *list, const char *params, | |
909 | int permit_abbrev) | |
910 | { | |
911 | QemuOpts *opts; | |
912 | ||
e05979d0 | 913 | opts = opts_parse(list, params, permit_abbrev, true, NULL, NULL); |
4f6dd9af JK |
914 | assert(opts); |
915 | } | |
916 | ||
4e89978e LC |
917 | typedef struct OptsFromQDictState { |
918 | QemuOpts *opts; | |
919 | Error **errp; | |
920 | } OptsFromQDictState; | |
921 | ||
01e7f188 MA |
922 | static void qemu_opts_from_qdict_1(const char *key, QObject *obj, void *opaque) |
923 | { | |
4e89978e | 924 | OptsFromQDictState *state = opaque; |
01b2ffce | 925 | char buf[32], *tmp = NULL; |
01e7f188 | 926 | const char *value; |
01e7f188 | 927 | |
2767ceec | 928 | if (!strcmp(key, "id") || *state->errp) { |
01e7f188 MA |
929 | return; |
930 | } | |
931 | ||
932 | switch (qobject_type(obj)) { | |
933 | case QTYPE_QSTRING: | |
7dc847eb | 934 | value = qstring_get_str(qobject_to(QString, obj)); |
01e7f188 | 935 | break; |
01b2ffce | 936 | case QTYPE_QNUM: |
7dc847eb | 937 | tmp = qnum_to_string(qobject_to(QNum, obj)); |
01b2ffce | 938 | value = tmp; |
01e7f188 MA |
939 | break; |
940 | case QTYPE_QBOOL: | |
d35215f8 | 941 | pstrcpy(buf, sizeof(buf), |
7dc847eb | 942 | qbool_get_bool(qobject_to(QBool, obj)) ? "on" : "off"); |
01e7f188 MA |
943 | value = buf; |
944 | break; | |
945 | default: | |
946 | return; | |
947 | } | |
4e89978e | 948 | |
f43e47db | 949 | qemu_opt_set(state->opts, key, value, state->errp); |
01b2ffce | 950 | g_free(tmp); |
01e7f188 MA |
951 | } |
952 | ||
953 | /* | |
954 | * Create QemuOpts from a QDict. | |
01b2ffce MAL |
955 | * Use value of key "id" as ID if it exists and is a QString. Only |
956 | * QStrings, QNums and QBools are copied. Entries with other types | |
957 | * are silently ignored. | |
01e7f188 | 958 | */ |
4e89978e LC |
959 | QemuOpts *qemu_opts_from_qdict(QemuOptsList *list, const QDict *qdict, |
960 | Error **errp) | |
01e7f188 | 961 | { |
4e89978e | 962 | OptsFromQDictState state; |
8be7e7e4 | 963 | Error *local_err = NULL; |
4e89978e | 964 | QemuOpts *opts; |
01e7f188 | 965 | |
8be7e7e4 LC |
966 | opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1, |
967 | &local_err); | |
84d18f06 | 968 | if (local_err) { |
4e89978e | 969 | error_propagate(errp, local_err); |
01e7f188 | 970 | return NULL; |
8be7e7e4 | 971 | } |
01e7f188 | 972 | |
8be7e7e4 | 973 | assert(opts != NULL); |
4e89978e LC |
974 | |
975 | state.errp = &local_err; | |
976 | state.opts = opts; | |
977 | qdict_iter(qdict, qemu_opts_from_qdict_1, &state); | |
84d18f06 | 978 | if (local_err) { |
4e89978e LC |
979 | error_propagate(errp, local_err); |
980 | qemu_opts_del(opts); | |
981 | return NULL; | |
982 | } | |
983 | ||
01e7f188 MA |
984 | return opts; |
985 | } | |
986 | ||
376609cc KW |
987 | /* |
988 | * Adds all QDict entries to the QemuOpts that can be added and removes them | |
989 | * from the QDict. When this function returns, the QDict contains only those | |
990 | * entries that couldn't be added to the QemuOpts. | |
991 | */ | |
992 | void qemu_opts_absorb_qdict(QemuOpts *opts, QDict *qdict, Error **errp) | |
993 | { | |
994 | const QDictEntry *entry, *next; | |
995 | ||
996 | entry = qdict_first(qdict); | |
997 | ||
998 | while (entry != NULL) { | |
999 | Error *local_err = NULL; | |
1000 | OptsFromQDictState state = { | |
1001 | .errp = &local_err, | |
1002 | .opts = opts, | |
1003 | }; | |
1004 | ||
1005 | next = qdict_next(qdict, entry); | |
1006 | ||
1007 | if (find_desc_by_name(opts->list->desc, entry->key)) { | |
1008 | qemu_opts_from_qdict_1(entry->key, entry->value, &state); | |
84d18f06 | 1009 | if (local_err) { |
376609cc KW |
1010 | error_propagate(errp, local_err); |
1011 | return; | |
1012 | } else { | |
1013 | qdict_del(qdict, entry->key); | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | entry = next; | |
1018 | } | |
1019 | } | |
1020 | ||
01e7f188 | 1021 | /* |
72215395 KW |
1022 | * Convert from QemuOpts to QDict. The QDict values are of type QString. |
1023 | * | |
1024 | * If @list is given, only add those options to the QDict that are contained in | |
1025 | * the list. If @del is true, any options added to the QDict are removed from | |
1026 | * the QemuOpts, otherwise they remain there. | |
1027 | * | |
1028 | * If two options in @opts have the same name, they are processed in order | |
1029 | * so that the last one wins (consistent with the reverse iteration in | |
1030 | * qemu_opt_find()), but all of them are deleted if @del is true. | |
1031 | * | |
01e7f188 MA |
1032 | * TODO We'll want to use types appropriate for opt->desc->type, but |
1033 | * this is enough for now. | |
1034 | */ | |
72215395 KW |
1035 | QDict *qemu_opts_to_qdict_filtered(QemuOpts *opts, QDict *qdict, |
1036 | QemuOptsList *list, bool del) | |
01e7f188 | 1037 | { |
72215395 | 1038 | QemuOpt *opt, *next; |
01e7f188 MA |
1039 | |
1040 | if (!qdict) { | |
1041 | qdict = qdict_new(); | |
1042 | } | |
1043 | if (opts->id) { | |
46f5ac20 | 1044 | qdict_put_str(qdict, "id", opts->id); |
01e7f188 | 1045 | } |
72215395 KW |
1046 | QTAILQ_FOREACH_SAFE(opt, &opts->head, next, next) { |
1047 | if (list) { | |
1048 | QemuOptDesc *desc; | |
1049 | bool found = false; | |
1050 | for (desc = list->desc; desc->name; desc++) { | |
1051 | if (!strcmp(desc->name, opt->name)) { | |
1052 | found = true; | |
1053 | break; | |
1054 | } | |
1055 | } | |
1056 | if (!found) { | |
1057 | continue; | |
1058 | } | |
1059 | } | |
28934e0c | 1060 | qdict_put_str(qdict, opt->name, opt->str); |
72215395 KW |
1061 | if (del) { |
1062 | qemu_opt_del(opt); | |
1063 | } | |
01e7f188 MA |
1064 | } |
1065 | return qdict; | |
1066 | } | |
1067 | ||
72215395 KW |
1068 | /* Copy all options in a QemuOpts to the given QDict. See |
1069 | * qemu_opts_to_qdict_filtered() for details. */ | |
1070 | QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict) | |
1071 | { | |
1072 | return qemu_opts_to_qdict_filtered(opts, qdict, NULL, false); | |
1073 | } | |
1074 | ||
5dc519ef MM |
1075 | /* Validate parsed opts against descriptions where no |
1076 | * descriptions were provided in the QemuOptsList. | |
1077 | */ | |
29952866 | 1078 | void qemu_opts_validate(QemuOpts *opts, const QemuOptDesc *desc, Error **errp) |
5dc519ef MM |
1079 | { |
1080 | QemuOpt *opt; | |
6c519404 | 1081 | Error *local_err = NULL; |
5dc519ef | 1082 | |
db97ceba | 1083 | assert(opts_accepts_any(opts)); |
5dc519ef MM |
1084 | |
1085 | QTAILQ_FOREACH(opt, &opts->head, next) { | |
db97ceba DXW |
1086 | opt->desc = find_desc_by_name(desc, opt->name); |
1087 | if (!opt->desc) { | |
c6bd8c70 | 1088 | error_setg(errp, QERR_INVALID_PARAMETER, opt->name); |
29952866 | 1089 | return; |
5dc519ef MM |
1090 | } |
1091 | ||
6c519404 | 1092 | qemu_opt_parse(opt, &local_err); |
84d18f06 | 1093 | if (local_err) { |
29952866 LC |
1094 | error_propagate(errp, local_err); |
1095 | return; | |
5dc519ef MM |
1096 | } |
1097 | } | |
5dc519ef MM |
1098 | } |
1099 | ||
a4c7367f | 1100 | /** |
28d0de7a | 1101 | * For each member of @list, call @func(@opaque, member, @errp). |
a4c7367f | 1102 | * Call it with the current location temporarily set to the member's. |
28d0de7a | 1103 | * @func() may store an Error through @errp, but must return non-zero then. |
a4c7367f MA |
1104 | * When @func() returns non-zero, break the loop and return that value. |
1105 | * Return zero when the loop completes. | |
1106 | */ | |
1107 | int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, | |
28d0de7a | 1108 | void *opaque, Error **errp) |
e27c88fe | 1109 | { |
827b0813 | 1110 | Location loc; |
e27c88fe | 1111 | QemuOpts *opts; |
37f32349 | 1112 | int rc = 0; |
e27c88fe | 1113 | |
827b0813 | 1114 | loc_push_none(&loc); |
72cf2d4f | 1115 | QTAILQ_FOREACH(opts, &list->head, next) { |
827b0813 | 1116 | loc_restore(&opts->loc); |
28d0de7a | 1117 | rc = func(opaque, opts, errp); |
a4c7367f | 1118 | if (rc) { |
37f32349 | 1119 | break; |
a4c7367f | 1120 | } |
28d0de7a | 1121 | assert(!errp || !*errp); |
e27c88fe | 1122 | } |
827b0813 | 1123 | loc_pop(&loc); |
37f32349 | 1124 | return rc; |
e27c88fe | 1125 | } |
8559e45e CL |
1126 | |
1127 | static size_t count_opts_list(QemuOptsList *list) | |
1128 | { | |
1129 | QemuOptDesc *desc = NULL; | |
1130 | size_t num_opts = 0; | |
1131 | ||
1132 | if (!list) { | |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | desc = list->desc; | |
1137 | while (desc && desc->name) { | |
1138 | num_opts++; | |
1139 | desc++; | |
1140 | } | |
1141 | ||
1142 | return num_opts; | |
1143 | } | |
1144 | ||
8559e45e CL |
1145 | void qemu_opts_free(QemuOptsList *list) |
1146 | { | |
8559e45e CL |
1147 | g_free(list); |
1148 | } | |
a1097a26 | 1149 | |
c282e1fd CL |
1150 | /* Realloc dst option list and append options from an option list (list) |
1151 | * to it. dst could be NULL or a malloced list. | |
98d896d9 CL |
1152 | * The lifetime of dst must be shorter than the input list because the |
1153 | * QemuOptDesc->name, ->help, and ->def_value_str strings are shared. | |
a1097a26 CL |
1154 | */ |
1155 | QemuOptsList *qemu_opts_append(QemuOptsList *dst, | |
c282e1fd | 1156 | QemuOptsList *list) |
a1097a26 CL |
1157 | { |
1158 | size_t num_opts, num_dst_opts; | |
1159 | QemuOptDesc *desc; | |
1160 | bool need_init = false; | |
a7607150 | 1161 | bool need_head_update; |
a1097a26 | 1162 | |
c282e1fd | 1163 | if (!list) { |
a1097a26 CL |
1164 | return dst; |
1165 | } | |
1166 | ||
a1097a26 CL |
1167 | /* If dst is NULL, after realloc, some area of dst should be initialized |
1168 | * before adding options to it. | |
1169 | */ | |
1170 | if (!dst) { | |
1171 | need_init = true; | |
a7607150 MP |
1172 | need_head_update = true; |
1173 | } else { | |
1174 | /* Moreover, even if dst is not NULL, the realloc may move it to a | |
1175 | * different address in which case we may get a stale tail pointer | |
1176 | * in dst->head. */ | |
1177 | need_head_update = QTAILQ_EMPTY(&dst->head); | |
a1097a26 CL |
1178 | } |
1179 | ||
1180 | num_opts = count_opts_list(dst); | |
1181 | num_dst_opts = num_opts; | |
1182 | num_opts += count_opts_list(list); | |
1183 | dst = g_realloc(dst, sizeof(QemuOptsList) + | |
1184 | (num_opts + 1) * sizeof(QemuOptDesc)); | |
1185 | if (need_init) { | |
1186 | dst->name = NULL; | |
1187 | dst->implied_opt_name = NULL; | |
a1097a26 CL |
1188 | dst->merge_lists = false; |
1189 | } | |
a7607150 MP |
1190 | if (need_head_update) { |
1191 | QTAILQ_INIT(&dst->head); | |
1192 | } | |
a1097a26 CL |
1193 | dst->desc[num_dst_opts].name = NULL; |
1194 | ||
a1097a26 CL |
1195 | /* append list->desc to dst->desc */ |
1196 | if (list) { | |
1197 | desc = list->desc; | |
1198 | while (desc && desc->name) { | |
1199 | if (find_desc_by_name(dst->desc, desc->name) == NULL) { | |
98d896d9 | 1200 | dst->desc[num_dst_opts++] = *desc; |
a1097a26 CL |
1201 | dst->desc[num_dst_opts].name = NULL; |
1202 | } | |
1203 | desc++; | |
1204 | } | |
1205 | } | |
1206 | ||
a1097a26 CL |
1207 | return dst; |
1208 | } |