Peter Maydell | aafd758 | 2016-01-29 17:49:55 +0000 | [diff] [blame] | 1 | #include "qemu/osdep.h" |
Max Reitz | 609f45e | 2018-06-14 21:14:28 +0200 | [diff] [blame] | 2 | #include "block/qdict.h" /* for qdict_extract_subqdict() */ |
Markus Armbruster | e688df6 | 2018-02-01 12:18:31 +0100 | [diff] [blame] | 3 | #include "qapi/error.h" |
Markus Armbruster | 112ed24 | 2018-02-26 17:13:27 -0600 | [diff] [blame] | 4 | #include "qapi/qapi-commands-misc.h" |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 5 | #include "qapi/qmp/qerror.h" |
Markus Armbruster | 452fcdb | 2018-02-01 12:18:39 +0100 | [diff] [blame] | 6 | #include "qapi/qmp/qdict.h" |
Markus Armbruster | 47e6b29 | 2018-02-01 12:18:38 +0100 | [diff] [blame] | 7 | #include "qapi/qmp/qlist.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 8 | #include "qemu/error-report.h" |
| 9 | #include "qemu/option.h" |
| 10 | #include "qemu/config-file.h" |
Gerd Hoffmann | 7282a03 | 2009-07-31 12:25:35 +0200 | [diff] [blame] | 11 | |
Gerd Hoffmann | 1ceaefb | 2015-05-29 14:37:54 +0200 | [diff] [blame] | 12 | static QemuOptsList *vm_config_groups[48]; |
Kevin Wolf | c5f3014 | 2016-10-06 11:33:17 +0200 | [diff] [blame] | 13 | static QemuOptsList *drive_config_groups[5]; |
Gerd Hoffmann | d058fe0 | 2009-07-31 12:25:36 +0200 | [diff] [blame] | 14 | |
Luiz Capitulino | 2ac2061 | 2012-03-28 14:14:17 -0300 | [diff] [blame] | 15 | static QemuOptsList *find_list(QemuOptsList **lists, const char *group, |
| 16 | Error **errp) |
Gerd Hoffmann | d058fe0 | 2009-07-31 12:25:36 +0200 | [diff] [blame] | 17 | { |
Gerd Hoffmann | ddc9785 | 2009-10-14 10:39:25 +0200 | [diff] [blame] | 18 | int i; |
Gerd Hoffmann | d058fe0 | 2009-07-31 12:25:36 +0200 | [diff] [blame] | 19 | |
Paolo Bonzini | 632a887 | 2021-05-18 09:08:17 -0400 | [diff] [blame] | 20 | qemu_load_module_for_opts(group); |
Gerd Hoffmann | d058fe0 | 2009-07-31 12:25:36 +0200 | [diff] [blame] | 21 | for (i = 0; lists[i] != NULL; i++) { |
| 22 | if (strcmp(lists[i]->name, group) == 0) |
| 23 | break; |
| 24 | } |
| 25 | if (lists[i] == NULL) { |
Cole Robinson | f231b88 | 2014-03-21 19:42:26 -0400 | [diff] [blame] | 26 | error_setg(errp, "There is no option group '%s'", group); |
Gerd Hoffmann | ddc9785 | 2009-10-14 10:39:25 +0200 | [diff] [blame] | 27 | } |
| 28 | return lists[i]; |
| 29 | } |
| 30 | |
Kevin Wolf | 490b648 | 2010-03-05 18:21:56 +0100 | [diff] [blame] | 31 | QemuOptsList *qemu_find_opts(const char *group) |
| 32 | { |
Luiz Capitulino | 2ac2061 | 2012-03-28 14:14:17 -0300 | [diff] [blame] | 33 | QemuOptsList *ret; |
| 34 | Error *local_err = NULL; |
| 35 | |
| 36 | ret = find_list(vm_config_groups, group, &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 37 | if (local_err) { |
Markus Armbruster | 565f65d | 2015-02-12 13:55:05 +0100 | [diff] [blame] | 38 | error_report_err(local_err); |
Luiz Capitulino | 2ac2061 | 2012-03-28 14:14:17 -0300 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | return ret; |
Kevin Wolf | 490b648 | 2010-03-05 18:21:56 +0100 | [diff] [blame] | 42 | } |
| 43 | |
Paolo Bonzini | e96e5ae | 2014-03-06 10:39:24 +0100 | [diff] [blame] | 44 | QemuOpts *qemu_find_opts_singleton(const char *group) |
| 45 | { |
| 46 | QemuOptsList *list; |
| 47 | QemuOpts *opts; |
| 48 | |
| 49 | list = qemu_find_opts(group); |
| 50 | assert(list); |
| 51 | opts = qemu_opts_find(list, NULL); |
| 52 | if (!opts) { |
| 53 | opts = qemu_opts_create(list, NULL, 0, &error_abort); |
| 54 | } |
| 55 | return opts; |
| 56 | } |
| 57 | |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 58 | static CommandLineParameterInfoList *query_option_descs(const QemuOptDesc *desc) |
| 59 | { |
Eric Blake | 54aa3de | 2020-11-12 19:13:37 -0600 | [diff] [blame] | 60 | CommandLineParameterInfoList *param_list = NULL; |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 61 | CommandLineParameterInfo *info; |
| 62 | int i; |
| 63 | |
| 64 | for (i = 0; desc[i].name != NULL; i++) { |
| 65 | info = g_malloc0(sizeof(*info)); |
| 66 | info->name = g_strdup(desc[i].name); |
| 67 | |
| 68 | switch (desc[i].type) { |
| 69 | case QEMU_OPT_STRING: |
| 70 | info->type = COMMAND_LINE_PARAMETER_TYPE_STRING; |
| 71 | break; |
| 72 | case QEMU_OPT_BOOL: |
| 73 | info->type = COMMAND_LINE_PARAMETER_TYPE_BOOLEAN; |
| 74 | break; |
| 75 | case QEMU_OPT_NUMBER: |
| 76 | info->type = COMMAND_LINE_PARAMETER_TYPE_NUMBER; |
| 77 | break; |
| 78 | case QEMU_OPT_SIZE: |
| 79 | info->type = COMMAND_LINE_PARAMETER_TYPE_SIZE; |
| 80 | break; |
| 81 | } |
| 82 | |
| 83 | if (desc[i].help) { |
| 84 | info->has_help = true; |
| 85 | info->help = g_strdup(desc[i].help); |
| 86 | } |
Chunyan Liu | e36af94 | 2014-06-05 17:20:43 +0800 | [diff] [blame] | 87 | if (desc[i].def_value_str) { |
| 88 | info->has_q_default = true; |
| 89 | info->q_default = g_strdup(desc[i].def_value_str); |
| 90 | } |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 91 | |
Eric Blake | 54aa3de | 2020-11-12 19:13:37 -0600 | [diff] [blame] | 92 | QAPI_LIST_PREPEND(param_list, info); |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | return param_list; |
| 96 | } |
| 97 | |
Amos Kong | 968854c | 2013-11-09 12:15:47 +0800 | [diff] [blame] | 98 | /* remove repeated entry from the info list */ |
| 99 | static void cleanup_infolist(CommandLineParameterInfoList *head) |
| 100 | { |
| 101 | CommandLineParameterInfoList *pre_entry, *cur, *del_entry; |
| 102 | |
| 103 | cur = head; |
| 104 | while (cur->next) { |
| 105 | pre_entry = head; |
| 106 | while (pre_entry != cur->next) { |
| 107 | if (!strcmp(pre_entry->value->name, cur->next->value->name)) { |
| 108 | del_entry = cur->next; |
| 109 | cur->next = cur->next->next; |
Marc-André Lureau | b11e20f | 2018-01-04 17:05:18 +0100 | [diff] [blame] | 110 | del_entry->next = NULL; |
| 111 | qapi_free_CommandLineParameterInfoList(del_entry); |
Amos Kong | 968854c | 2013-11-09 12:15:47 +0800 | [diff] [blame] | 112 | break; |
| 113 | } |
| 114 | pre_entry = pre_entry->next; |
| 115 | } |
| 116 | cur = cur->next; |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | /* merge the description items of two parameter infolists */ |
| 121 | static void connect_infolist(CommandLineParameterInfoList *head, |
| 122 | CommandLineParameterInfoList *new) |
| 123 | { |
| 124 | CommandLineParameterInfoList *cur; |
| 125 | |
| 126 | cur = head; |
| 127 | while (cur->next) { |
| 128 | cur = cur->next; |
| 129 | } |
| 130 | cur->next = new; |
| 131 | } |
| 132 | |
| 133 | /* access all the local QemuOptsLists for drive option */ |
| 134 | static CommandLineParameterInfoList *get_drive_infolist(void) |
| 135 | { |
| 136 | CommandLineParameterInfoList *head = NULL, *cur; |
| 137 | int i; |
| 138 | |
| 139 | for (i = 0; drive_config_groups[i] != NULL; i++) { |
| 140 | if (!head) { |
| 141 | head = query_option_descs(drive_config_groups[i]->desc); |
| 142 | } else { |
| 143 | cur = query_option_descs(drive_config_groups[i]->desc); |
| 144 | connect_infolist(head, cur); |
| 145 | } |
| 146 | } |
| 147 | cleanup_infolist(head); |
| 148 | |
| 149 | return head; |
| 150 | } |
| 151 | |
Marcel Apfelbaum | 0a7cf21 | 2015-04-01 19:47:21 +0300 | [diff] [blame] | 152 | /* restore machine options that are now machine's properties */ |
| 153 | static QemuOptsList machine_opts = { |
| 154 | .merge_lists = true, |
| 155 | .head = QTAILQ_HEAD_INITIALIZER(machine_opts.head), |
| 156 | .desc = { |
| 157 | { |
| 158 | .name = "type", |
| 159 | .type = QEMU_OPT_STRING, |
| 160 | .help = "emulated machine" |
| 161 | },{ |
| 162 | .name = "accel", |
| 163 | .type = QEMU_OPT_STRING, |
| 164 | .help = "accelerator list", |
| 165 | },{ |
| 166 | .name = "kernel_irqchip", |
| 167 | .type = QEMU_OPT_BOOL, |
| 168 | .help = "use KVM in-kernel irqchip", |
| 169 | },{ |
| 170 | .name = "kvm_shadow_mem", |
| 171 | .type = QEMU_OPT_SIZE, |
| 172 | .help = "KVM shadow MMU size", |
| 173 | },{ |
| 174 | .name = "kernel", |
| 175 | .type = QEMU_OPT_STRING, |
| 176 | .help = "Linux kernel image file", |
| 177 | },{ |
| 178 | .name = "initrd", |
| 179 | .type = QEMU_OPT_STRING, |
| 180 | .help = "Linux initial ramdisk file", |
| 181 | },{ |
| 182 | .name = "append", |
| 183 | .type = QEMU_OPT_STRING, |
| 184 | .help = "Linux kernel command line", |
| 185 | },{ |
| 186 | .name = "dtb", |
| 187 | .type = QEMU_OPT_STRING, |
| 188 | .help = "Linux kernel device tree file", |
| 189 | },{ |
| 190 | .name = "dumpdtb", |
| 191 | .type = QEMU_OPT_STRING, |
| 192 | .help = "Dump current dtb to a file and quit", |
| 193 | },{ |
| 194 | .name = "phandle_start", |
| 195 | .type = QEMU_OPT_NUMBER, |
| 196 | .help = "The first phandle ID we may generate dynamically", |
| 197 | },{ |
| 198 | .name = "dt_compatible", |
| 199 | .type = QEMU_OPT_STRING, |
| 200 | .help = "Overrides the \"compatible\" property of the dt root node", |
| 201 | },{ |
| 202 | .name = "dump-guest-core", |
| 203 | .type = QEMU_OPT_BOOL, |
| 204 | .help = "Include guest memory in a core dump", |
| 205 | },{ |
| 206 | .name = "mem-merge", |
| 207 | .type = QEMU_OPT_BOOL, |
| 208 | .help = "enable/disable memory merge support", |
| 209 | },{ |
| 210 | .name = "usb", |
| 211 | .type = QEMU_OPT_BOOL, |
| 212 | .help = "Set on/off to enable/disable usb", |
| 213 | },{ |
| 214 | .name = "firmware", |
| 215 | .type = QEMU_OPT_STRING, |
| 216 | .help = "firmware image", |
| 217 | },{ |
| 218 | .name = "iommu", |
| 219 | .type = QEMU_OPT_BOOL, |
| 220 | .help = "Set on/off to enable/disable Intel IOMMU (VT-d)", |
| 221 | },{ |
| 222 | .name = "suppress-vmdesc", |
| 223 | .type = QEMU_OPT_BOOL, |
| 224 | .help = "Set on to disable self-describing migration", |
Tony Krowiak | 5bcfa0c | 2015-10-12 11:36:21 -0400 | [diff] [blame] | 225 | },{ |
| 226 | .name = "aes-key-wrap", |
| 227 | .type = QEMU_OPT_BOOL, |
| 228 | .help = "enable/disable AES key wrapping using the CPACF wrapping key", |
| 229 | },{ |
| 230 | .name = "dea-key-wrap", |
| 231 | .type = QEMU_OPT_BOOL, |
| 232 | .help = "enable/disable DEA key wrapping using the CPACF wrapping key", |
Farhan Ali | 5559716 | 2016-12-15 13:44:29 -0500 | [diff] [blame] | 233 | },{ |
| 234 | .name = "loadparm", |
| 235 | .type = QEMU_OPT_STRING, |
| 236 | .help = "Up to 8 chars in set of [A-Za-z0-9. ](lower case chars" |
| 237 | " converted to upper case) to pass to machine" |
| 238 | " loader, boot manager, and guest kernel", |
Marcel Apfelbaum | 0a7cf21 | 2015-04-01 19:47:21 +0300 | [diff] [blame] | 239 | }, |
| 240 | { /* End of list */ } |
| 241 | } |
| 242 | }; |
| 243 | |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 244 | CommandLineOptionInfoList *qmp_query_command_line_options(bool has_option, |
| 245 | const char *option, |
| 246 | Error **errp) |
| 247 | { |
Eric Blake | 54aa3de | 2020-11-12 19:13:37 -0600 | [diff] [blame] | 248 | CommandLineOptionInfoList *conf_list = NULL; |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 249 | CommandLineOptionInfo *info; |
| 250 | int i; |
| 251 | |
| 252 | for (i = 0; vm_config_groups[i] != NULL; i++) { |
| 253 | if (!has_option || !strcmp(option, vm_config_groups[i]->name)) { |
| 254 | info = g_malloc0(sizeof(*info)); |
| 255 | info->option = g_strdup(vm_config_groups[i]->name); |
Amos Kong | 968854c | 2013-11-09 12:15:47 +0800 | [diff] [blame] | 256 | if (!strcmp("drive", vm_config_groups[i]->name)) { |
| 257 | info->parameters = get_drive_infolist(); |
| 258 | } else { |
| 259 | info->parameters = |
| 260 | query_option_descs(vm_config_groups[i]->desc); |
| 261 | } |
Eric Blake | 54aa3de | 2020-11-12 19:13:37 -0600 | [diff] [blame] | 262 | QAPI_LIST_PREPEND(conf_list, info); |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 263 | } |
| 264 | } |
| 265 | |
Stefan Hajnoczi | 40e0737 | 2021-07-21 16:10:55 +0100 | [diff] [blame^] | 266 | if (!has_option || !strcmp(option, "machine")) { |
| 267 | info = g_malloc0(sizeof(*info)); |
| 268 | info->option = g_strdup("machine"); |
| 269 | info->parameters = query_option_descs(machine_opts.desc); |
| 270 | QAPI_LIST_PREPEND(conf_list, info); |
| 271 | } |
| 272 | |
Amos Kong | 1f8f987 | 2013-04-25 17:50:35 +0800 | [diff] [blame] | 273 | if (conf_list == NULL) { |
| 274 | error_setg(errp, "invalid option name: %s", option); |
| 275 | } |
| 276 | |
| 277 | return conf_list; |
| 278 | } |
| 279 | |
Luiz Capitulino | 60d5666 | 2012-03-28 14:16:37 -0300 | [diff] [blame] | 280 | QemuOptsList *qemu_find_opts_err(const char *group, Error **errp) |
| 281 | { |
| 282 | return find_list(vm_config_groups, group, errp); |
| 283 | } |
| 284 | |
Amos Kong | 968854c | 2013-11-09 12:15:47 +0800 | [diff] [blame] | 285 | void qemu_add_drive_opts(QemuOptsList *list) |
| 286 | { |
| 287 | int entries, i; |
| 288 | |
| 289 | entries = ARRAY_SIZE(drive_config_groups); |
| 290 | entries--; /* keep list NULL terminated */ |
| 291 | for (i = 0; i < entries; i++) { |
| 292 | if (drive_config_groups[i] == NULL) { |
| 293 | drive_config_groups[i] = list; |
| 294 | return; |
| 295 | } |
| 296 | } |
| 297 | fprintf(stderr, "ran out of space in drive_config_groups"); |
| 298 | abort(); |
| 299 | } |
| 300 | |
Gerd Hoffmann | dfe795e | 2010-08-20 13:52:00 +0200 | [diff] [blame] | 301 | void qemu_add_opts(QemuOptsList *list) |
| 302 | { |
| 303 | int entries, i; |
| 304 | |
| 305 | entries = ARRAY_SIZE(vm_config_groups); |
| 306 | entries--; /* keep list NULL terminated */ |
| 307 | for (i = 0; i < entries; i++) { |
| 308 | if (vm_config_groups[i] == NULL) { |
| 309 | vm_config_groups[i] = list; |
| 310 | return; |
| 311 | } |
| 312 | } |
| 313 | fprintf(stderr, "ran out of space in vm_config_groups"); |
| 314 | abort(); |
| 315 | } |
| 316 | |
Gerd Hoffmann | 9d99339 | 2009-10-14 10:39:26 +0200 | [diff] [blame] | 317 | struct ConfigWriteData { |
| 318 | QemuOptsList *list; |
| 319 | FILE *fp; |
| 320 | }; |
| 321 | |
Markus Armbruster | 71df1d8 | 2015-03-12 08:40:25 +0100 | [diff] [blame] | 322 | static int config_write_opt(void *opaque, const char *name, const char *value, |
| 323 | Error **errp) |
Gerd Hoffmann | 9d99339 | 2009-10-14 10:39:26 +0200 | [diff] [blame] | 324 | { |
| 325 | struct ConfigWriteData *data = opaque; |
| 326 | |
| 327 | fprintf(data->fp, " %s = \"%s\"\n", name, value); |
| 328 | return 0; |
| 329 | } |
| 330 | |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 331 | static int config_write_opts(void *opaque, QemuOpts *opts, Error **errp) |
Gerd Hoffmann | 9d99339 | 2009-10-14 10:39:26 +0200 | [diff] [blame] | 332 | { |
| 333 | struct ConfigWriteData *data = opaque; |
| 334 | const char *id = qemu_opts_id(opts); |
| 335 | |
| 336 | if (id) { |
| 337 | fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id); |
| 338 | } else { |
| 339 | fprintf(data->fp, "[%s]\n", data->list->name); |
| 340 | } |
Markus Armbruster | 71df1d8 | 2015-03-12 08:40:25 +0100 | [diff] [blame] | 341 | qemu_opt_foreach(opts, config_write_opt, data, NULL); |
Gerd Hoffmann | 9d99339 | 2009-10-14 10:39:26 +0200 | [diff] [blame] | 342 | fprintf(data->fp, "\n"); |
| 343 | return 0; |
| 344 | } |
| 345 | |
| 346 | void qemu_config_write(FILE *fp) |
| 347 | { |
| 348 | struct ConfigWriteData data = { .fp = fp }; |
Kevin Wolf | 490b648 | 2010-03-05 18:21:56 +0100 | [diff] [blame] | 349 | QemuOptsList **lists = vm_config_groups; |
Gerd Hoffmann | 9d99339 | 2009-10-14 10:39:26 +0200 | [diff] [blame] | 350 | int i; |
| 351 | |
| 352 | fprintf(fp, "# qemu config file\n\n"); |
| 353 | for (i = 0; lists[i] != NULL; i++) { |
| 354 | data.list = lists[i]; |
Markus Armbruster | 28d0de7 | 2015-03-13 13:35:14 +0100 | [diff] [blame] | 355 | qemu_opts_foreach(data.list, config_write_opts, &data, NULL); |
Gerd Hoffmann | 9d99339 | 2009-10-14 10:39:26 +0200 | [diff] [blame] | 356 | } |
| 357 | } |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 358 | |
Eduardo Habkost | e5766d6 | 2017-10-03 23:50:42 -0300 | [diff] [blame] | 359 | /* Returns number of config groups on success, -errno on error */ |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 360 | static int qemu_config_foreach(FILE *fp, QEMUConfigCB *cb, void *opaque, |
| 361 | const char *fname, Error **errp) |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 362 | { |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 363 | char line[1024], prev_group[64], group[64], arg[64], value[1024]; |
Markus Armbruster | cf5a65a | 2010-02-18 19:48:33 +0100 | [diff] [blame] | 364 | Location loc; |
Luiz Capitulino | 2ac2061 | 2012-03-28 14:14:17 -0300 | [diff] [blame] | 365 | Error *local_err = NULL; |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 366 | QDict *qdict = NULL; |
Eduardo Habkost | e5766d6 | 2017-10-03 23:50:42 -0300 | [diff] [blame] | 367 | int res = -EINVAL, lno = 0; |
| 368 | int count = 0; |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 369 | |
Markus Armbruster | cf5a65a | 2010-02-18 19:48:33 +0100 | [diff] [blame] | 370 | loc_push_none(&loc); |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 371 | while (fgets(line, sizeof(line), fp) != NULL) { |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 372 | ++lno; |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 373 | if (line[0] == '\n') { |
| 374 | /* skip empty lines */ |
| 375 | continue; |
| 376 | } |
| 377 | if (line[0] == '#') { |
| 378 | /* comment */ |
| 379 | continue; |
| 380 | } |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 381 | if (line[0] == '[') { |
| 382 | QDict *prev = qdict; |
| 383 | if (sscanf(line, "[%63s \"%63[^\"]\"]", group, value) == 2) { |
| 384 | qdict = qdict_new(); |
| 385 | qdict_put_str(qdict, "id", value); |
| 386 | count++; |
| 387 | } else if (sscanf(line, "[%63[^]]]", group) == 1) { |
| 388 | qdict = qdict_new(); |
| 389 | count++; |
Luiz Capitulino | 2ac2061 | 2012-03-28 14:14:17 -0300 | [diff] [blame] | 390 | } |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 391 | if (qdict != prev) { |
| 392 | if (prev) { |
| 393 | cb(prev_group, prev, opaque, &local_err); |
| 394 | qobject_unref(prev); |
| 395 | if (local_err) { |
| 396 | error_propagate(errp, local_err); |
| 397 | goto out; |
| 398 | } |
| 399 | } |
| 400 | strcpy(prev_group, group); |
| 401 | continue; |
Luiz Capitulino | 2ac2061 | 2012-03-28 14:14:17 -0300 | [diff] [blame] | 402 | } |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 403 | } |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 404 | loc_set_file(fname, lno); |
Eduardo Habkost | d9f7e29 | 2015-04-08 14:57:31 -0300 | [diff] [blame] | 405 | value[0] = '\0'; |
| 406 | if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2 || |
| 407 | sscanf(line, " %63s = \"\"", arg) == 1) { |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 408 | /* arg = value */ |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 409 | if (qdict == NULL) { |
Paolo Bonzini | f7544ed | 2021-02-26 12:08:16 -0500 | [diff] [blame] | 410 | error_setg(errp, "no group defined"); |
Markus Armbruster | cf5a65a | 2010-02-18 19:48:33 +0100 | [diff] [blame] | 411 | goto out; |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 412 | } |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 413 | qdict_put_str(qdict, arg, value); |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 414 | continue; |
| 415 | } |
Paolo Bonzini | f7544ed | 2021-02-26 12:08:16 -0500 | [diff] [blame] | 416 | error_setg(errp, "parse error"); |
Markus Armbruster | cf5a65a | 2010-02-18 19:48:33 +0100 | [diff] [blame] | 417 | goto out; |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 418 | } |
Markus Armbruster | ef82516 | 2010-02-18 19:56:01 +0100 | [diff] [blame] | 419 | if (ferror(fp)) { |
Paolo Bonzini | f7544ed | 2021-02-26 12:08:16 -0500 | [diff] [blame] | 420 | loc_pop(&loc); |
| 421 | error_setg_errno(errp, errno, "Cannot read config file"); |
Paolo Bonzini | 461fea9 | 2021-07-05 19:14:37 +0200 | [diff] [blame] | 422 | goto out_no_loc; |
Markus Armbruster | ef82516 | 2010-02-18 19:56:01 +0100 | [diff] [blame] | 423 | } |
Eduardo Habkost | e5766d6 | 2017-10-03 23:50:42 -0300 | [diff] [blame] | 424 | res = count; |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 425 | if (qdict) { |
| 426 | cb(group, qdict, opaque, errp); |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 427 | } |
Paolo Bonzini | e72f952 | 2021-07-05 19:14:37 +0200 | [diff] [blame] | 428 | out: |
Markus Armbruster | cf5a65a | 2010-02-18 19:48:33 +0100 | [diff] [blame] | 429 | loc_pop(&loc); |
Paolo Bonzini | 461fea9 | 2021-07-05 19:14:37 +0200 | [diff] [blame] | 430 | out_no_loc: |
Paolo Bonzini | e72f952 | 2021-07-05 19:14:37 +0200 | [diff] [blame] | 431 | qobject_unref(qdict); |
Markus Armbruster | cf5a65a | 2010-02-18 19:48:33 +0100 | [diff] [blame] | 432 | return res; |
Gerd Hoffmann | 42262ba | 2009-10-14 10:39:27 +0200 | [diff] [blame] | 433 | } |
Kevin Wolf | dcfb093 | 2010-03-05 17:25:55 +0100 | [diff] [blame] | 434 | |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 435 | void qemu_config_do_parse(const char *group, QDict *qdict, void *opaque, Error **errp) |
| 436 | { |
| 437 | QemuOptsList **lists = opaque; |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 438 | QemuOptsList *list; |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 439 | |
| 440 | list = find_list(lists, group, errp); |
| 441 | if (!list) { |
| 442 | return; |
| 443 | } |
| 444 | |
Paolo Bonzini | e7d85d9 | 2021-06-09 14:34:35 +0200 | [diff] [blame] | 445 | qemu_opts_from_qdict(list, qdict, errp); |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname, Error **errp) |
| 449 | { |
| 450 | return qemu_config_foreach(fp, qemu_config_do_parse, lists, fname, errp); |
| 451 | } |
| 452 | |
| 453 | int qemu_read_config_file(const char *filename, QEMUConfigCB *cb, Error **errp) |
Kevin Wolf | dcfb093 | 2010-03-05 17:25:55 +0100 | [diff] [blame] | 454 | { |
| 455 | FILE *f = fopen(filename, "r"); |
Kevin Wolf | 019e78b | 2010-05-17 10:36:47 +0200 | [diff] [blame] | 456 | int ret; |
| 457 | |
Kevin Wolf | dcfb093 | 2010-03-05 17:25:55 +0100 | [diff] [blame] | 458 | if (f == NULL) { |
Paolo Bonzini | f7544ed | 2021-02-26 12:08:16 -0500 | [diff] [blame] | 459 | error_setg_file_open(errp, errno, filename); |
Kevin Wolf | dcfb093 | 2010-03-05 17:25:55 +0100 | [diff] [blame] | 460 | return -errno; |
| 461 | } |
| 462 | |
Paolo Bonzini | 3770141 | 2021-05-24 06:57:50 -0400 | [diff] [blame] | 463 | ret = qemu_config_foreach(f, cb, vm_config_groups, filename, errp); |
Kevin Wolf | dcfb093 | 2010-03-05 17:25:55 +0100 | [diff] [blame] | 464 | fclose(f); |
Eduardo Habkost | e5766d6 | 2017-10-03 23:50:42 -0300 | [diff] [blame] | 465 | return ret; |
Kevin Wolf | dcfb093 | 2010-03-05 17:25:55 +0100 | [diff] [blame] | 466 | } |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 467 | |
| 468 | static void config_parse_qdict_section(QDict *options, QemuOptsList *opts, |
| 469 | Error **errp) |
| 470 | { |
| 471 | QemuOpts *subopts; |
| 472 | QDict *subqdict; |
| 473 | QList *list = NULL; |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 474 | size_t orig_size, enum_size; |
| 475 | char *prefix; |
| 476 | |
| 477 | prefix = g_strdup_printf("%s.", opts->name); |
| 478 | qdict_extract_subqdict(options, &subqdict, prefix); |
| 479 | g_free(prefix); |
| 480 | orig_size = qdict_size(subqdict); |
| 481 | if (!orig_size) { |
| 482 | goto out; |
| 483 | } |
| 484 | |
Markus Armbruster | c6ecec4 | 2020-07-07 18:05:35 +0200 | [diff] [blame] | 485 | subopts = qemu_opts_create(opts, NULL, 0, errp); |
| 486 | if (!subopts) { |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 487 | goto out; |
| 488 | } |
| 489 | |
Markus Armbruster | 668f62e | 2020-07-07 18:06:02 +0200 | [diff] [blame] | 490 | if (!qemu_opts_absorb_qdict(subopts, subqdict, errp)) { |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 491 | goto out; |
| 492 | } |
| 493 | |
| 494 | enum_size = qdict_size(subqdict); |
| 495 | if (enum_size < orig_size && enum_size) { |
| 496 | error_setg(errp, "Unknown option '%s' for [%s]", |
| 497 | qdict_first(subqdict)->key, opts->name); |
| 498 | goto out; |
| 499 | } |
| 500 | |
| 501 | if (enum_size) { |
| 502 | /* Multiple, enumerated sections */ |
| 503 | QListEntry *list_entry; |
| 504 | unsigned i = 0; |
| 505 | |
| 506 | /* Not required anymore */ |
| 507 | qemu_opts_del(subopts); |
| 508 | |
| 509 | qdict_array_split(subqdict, &list); |
| 510 | if (qdict_size(subqdict)) { |
| 511 | error_setg(errp, "Unused option '%s' for [%s]", |
| 512 | qdict_first(subqdict)->key, opts->name); |
| 513 | goto out; |
| 514 | } |
| 515 | |
| 516 | QLIST_FOREACH_ENTRY(list, list_entry) { |
Max Reitz | 7dc847e | 2018-02-24 16:40:29 +0100 | [diff] [blame] | 517 | QDict *section = qobject_to(QDict, qlist_entry_obj(list_entry)); |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 518 | char *opt_name; |
| 519 | |
Max Reitz | ae39c4b | 2014-02-21 19:11:39 +0100 | [diff] [blame] | 520 | if (!section) { |
| 521 | error_setg(errp, "[%s] section (index %u) does not consist of " |
| 522 | "keys", opts->name, i); |
| 523 | goto out; |
| 524 | } |
| 525 | |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 526 | opt_name = g_strdup_printf("%s.%u", opts->name, i++); |
Markus Armbruster | c6ecec4 | 2020-07-07 18:05:35 +0200 | [diff] [blame] | 527 | subopts = qemu_opts_create(opts, opt_name, 1, errp); |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 528 | g_free(opt_name); |
Markus Armbruster | c6ecec4 | 2020-07-07 18:05:35 +0200 | [diff] [blame] | 529 | if (!subopts) { |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 530 | goto out; |
| 531 | } |
| 532 | |
Markus Armbruster | 668f62e | 2020-07-07 18:06:02 +0200 | [diff] [blame] | 533 | if (!qemu_opts_absorb_qdict(subopts, section, errp)) { |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 534 | qemu_opts_del(subopts); |
| 535 | goto out; |
| 536 | } |
| 537 | |
| 538 | if (qdict_size(section)) { |
| 539 | error_setg(errp, "[%s] section doesn't support the option '%s'", |
| 540 | opts->name, qdict_first(section)->key); |
| 541 | qemu_opts_del(subopts); |
| 542 | goto out; |
| 543 | } |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | out: |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 548 | qobject_unref(subqdict); |
| 549 | qobject_unref(list); |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | void qemu_config_parse_qdict(QDict *options, QemuOptsList **lists, |
| 553 | Error **errp) |
| 554 | { |
| 555 | int i; |
| 556 | Error *local_err = NULL; |
| 557 | |
| 558 | for (i = 0; lists[i]; i++) { |
| 559 | config_parse_qdict_section(options, lists[i], &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 560 | if (local_err) { |
Max Reitz | adf5c44 | 2013-12-20 19:28:05 +0100 | [diff] [blame] | 561 | error_propagate(errp, local_err); |
| 562 | return; |
| 563 | } |
| 564 | } |
| 565 | } |