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#include "qemu-common.h"
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#include "qemu-error.h"
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#include "qemu-option.h"
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#include "qemu-config.h"
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#include "sysemu.h"
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#include "hw/qdev.h"
7

    
8
static QemuOptsList qemu_drive_opts = {
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    .name = "drive",
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    .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
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    .desc = {
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        {
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            .name = "bus",
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            .type = QEMU_OPT_NUMBER,
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            .help = "bus number",
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        },{
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            .name = "unit",
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            .type = QEMU_OPT_NUMBER,
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            .help = "unit number (i.e. lun for scsi)",
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        },{
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            .name = "if",
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            .type = QEMU_OPT_STRING,
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            .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
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        },{
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            .name = "index",
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            .type = QEMU_OPT_NUMBER,
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        },{
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            .name = "cyls",
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            .type = QEMU_OPT_NUMBER,
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            .help = "number of cylinders (ide disk geometry)",
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        },{
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            .name = "heads",
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            .type = QEMU_OPT_NUMBER,
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            .help = "number of heads (ide disk geometry)",
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        },{
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            .name = "secs",
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            .type = QEMU_OPT_NUMBER,
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            .help = "number of sectors (ide disk geometry)",
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        },{
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            .name = "trans",
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            .type = QEMU_OPT_STRING,
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            .help = "chs translation (auto, lba. none)",
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        },{
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            .name = "media",
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            .type = QEMU_OPT_STRING,
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            .help = "media type (disk, cdrom)",
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        },{
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            .name = "snapshot",
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            .type = QEMU_OPT_BOOL,
50
        },{
51
            .name = "file",
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            .type = QEMU_OPT_STRING,
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            .help = "disk image",
54
        },{
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            .name = "cache",
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            .type = QEMU_OPT_STRING,
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            .help = "host cache usage (none, writeback, writethrough, unsafe)",
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        },{
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            .name = "aio",
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            .type = QEMU_OPT_STRING,
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            .help = "host AIO implementation (threads, native)",
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        },{
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            .name = "format",
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            .type = QEMU_OPT_STRING,
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            .help = "disk format (raw, qcow2, ...)",
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        },{
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            .name = "serial",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "rerror",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "werror",
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            .type = QEMU_OPT_STRING,
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        },{
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            .name = "addr",
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            .type = QEMU_OPT_STRING,
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            .help = "pci address (virtio only)",
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        },{
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            .name = "readonly",
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            .type = QEMU_OPT_BOOL,
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        },
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        { /* end of list */ }
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    },
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};
86

    
87
static QemuOptsList qemu_chardev_opts = {
88
    .name = "chardev",
89
    .implied_opt_name = "backend",
90
    .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
91
    .desc = {
92
        {
93
            .name = "backend",
94
            .type = QEMU_OPT_STRING,
95
        },{
96
            .name = "path",
97
            .type = QEMU_OPT_STRING,
98
        },{
99
            .name = "host",
100
            .type = QEMU_OPT_STRING,
101
        },{
102
            .name = "port",
103
            .type = QEMU_OPT_STRING,
104
        },{
105
            .name = "localaddr",
106
            .type = QEMU_OPT_STRING,
107
        },{
108
            .name = "localport",
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            .type = QEMU_OPT_STRING,
110
        },{
111
            .name = "to",
112
            .type = QEMU_OPT_NUMBER,
113
        },{
114
            .name = "ipv4",
115
            .type = QEMU_OPT_BOOL,
116
        },{
117
            .name = "ipv6",
118
            .type = QEMU_OPT_BOOL,
119
        },{
120
            .name = "wait",
121
            .type = QEMU_OPT_BOOL,
122
        },{
123
            .name = "server",
124
            .type = QEMU_OPT_BOOL,
125
        },{
126
            .name = "delay",
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            .type = QEMU_OPT_BOOL,
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        },{
129
            .name = "telnet",
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            .type = QEMU_OPT_BOOL,
131
        },{
132
            .name = "width",
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            .type = QEMU_OPT_NUMBER,
134
        },{
135
            .name = "height",
136
            .type = QEMU_OPT_NUMBER,
137
        },{
138
            .name = "cols",
139
            .type = QEMU_OPT_NUMBER,
140
        },{
141
            .name = "rows",
142
            .type = QEMU_OPT_NUMBER,
143
        },{
144
            .name = "mux",
145
            .type = QEMU_OPT_BOOL,
146
        },{
147
            .name = "signal",
148
            .type = QEMU_OPT_BOOL,
149
        },{
150
            .name = "name",
151
            .type = QEMU_OPT_STRING,
152
        },{
153
            .name = "debug",
154
            .type = QEMU_OPT_NUMBER,
155
        },
156
        { /* end of list */ }
157
    },
158
};
159

    
160
QemuOptsList qemu_fsdev_opts = {
161
    .name = "fsdev",
162
    .implied_opt_name = "fstype",
163
    .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
164
    .desc = {
165
        {
166
            .name = "fstype",
167
            .type = QEMU_OPT_STRING,
168
        }, {
169
            .name = "path",
170
            .type = QEMU_OPT_STRING,
171
        }, {
172
            .name = "security_model",
173
            .type = QEMU_OPT_STRING,
174
        },
175
        { /*End of list */ }
176
    },
177
};
178

    
179
QemuOptsList qemu_virtfs_opts = {
180
    .name = "virtfs",
181
    .implied_opt_name = "fstype",
182
    .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
183
    .desc = {
184
        {
185
            .name = "fstype",
186
            .type = QEMU_OPT_STRING,
187
        }, {
188
            .name = "path",
189
            .type = QEMU_OPT_STRING,
190
        }, {
191
            .name = "mount_tag",
192
            .type = QEMU_OPT_STRING,
193
        }, {
194
            .name = "security_model",
195
            .type = QEMU_OPT_STRING,
196
        },
197

    
198
        { /*End of list */ }
199
    },
200
};
201

    
202
static QemuOptsList qemu_device_opts = {
203
    .name = "device",
204
    .implied_opt_name = "driver",
205
    .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
206
    .desc = {
207
        /*
208
         * no elements => accept any
209
         * sanity checking will happen later
210
         * when setting device properties
211
         */
212
        { /* end of list */ }
213
    },
214
};
215

    
216
static QemuOptsList qemu_netdev_opts = {
217
    .name = "netdev",
218
    .implied_opt_name = "type",
219
    .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
220
    .desc = {
221
        /*
222
         * no elements => accept any params
223
         * validation will happen later
224
         */
225
        { /* end of list */ }
226
    },
227
};
228

    
229
static QemuOptsList qemu_net_opts = {
230
    .name = "net",
231
    .implied_opt_name = "type",
232
    .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
233
    .desc = {
234
        /*
235
         * no elements => accept any params
236
         * validation will happen later
237
         */
238
        { /* end of list */ }
239
    },
240
};
241

    
242
static QemuOptsList qemu_rtc_opts = {
243
    .name = "rtc",
244
    .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245
    .desc = {
246
        {
247
            .name = "base",
248
            .type = QEMU_OPT_STRING,
249
        },{
250
            .name = "clock",
251
            .type = QEMU_OPT_STRING,
252
        },{
253
            .name = "driftfix",
254
            .type = QEMU_OPT_STRING,
255
        },
256
        { /* end of list */ }
257
    },
258
};
259

    
260
static QemuOptsList qemu_global_opts = {
261
    .name = "global",
262
    .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
263
    .desc = {
264
        {
265
            .name = "driver",
266
            .type = QEMU_OPT_STRING,
267
        },{
268
            .name = "property",
269
            .type = QEMU_OPT_STRING,
270
        },{
271
            .name = "value",
272
            .type = QEMU_OPT_STRING,
273
        },
274
        { /* end of list */ }
275
    },
276
};
277

    
278
static QemuOptsList qemu_mon_opts = {
279
    .name = "mon",
280
    .implied_opt_name = "chardev",
281
    .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
282
    .desc = {
283
        {
284
            .name = "mode",
285
            .type = QEMU_OPT_STRING,
286
        },{
287
            .name = "chardev",
288
            .type = QEMU_OPT_STRING,
289
        },{
290
            .name = "default",
291
            .type = QEMU_OPT_BOOL,
292
        },{
293
            .name = "pretty",
294
            .type = QEMU_OPT_BOOL,
295
        },
296
        { /* end of list */ }
297
    },
298
};
299

    
300
#ifdef CONFIG_SIMPLE_TRACE
301
static QemuOptsList qemu_trace_opts = {
302
    .name = "trace",
303
    .implied_opt_name = "trace",
304
    .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
305
    .desc = {
306
        {
307
            .name = "file",
308
            .type = QEMU_OPT_STRING,
309
        },
310
        { /* end if list */ }
311
    },
312
};
313
#endif
314

    
315
static QemuOptsList qemu_cpudef_opts = {
316
    .name = "cpudef",
317
    .head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
318
    .desc = {
319
        {
320
            .name = "name",
321
            .type = QEMU_OPT_STRING,
322
        },{
323
            .name = "level",
324
            .type = QEMU_OPT_NUMBER,
325
        },{
326
            .name = "vendor",
327
            .type = QEMU_OPT_STRING,
328
        },{
329
            .name = "family",
330
            .type = QEMU_OPT_NUMBER,
331
        },{
332
            .name = "model",
333
            .type = QEMU_OPT_NUMBER,
334
        },{
335
            .name = "stepping",
336
            .type = QEMU_OPT_NUMBER,
337
        },{
338
            .name = "feature_edx",      /* cpuid 0000_0001.edx */
339
            .type = QEMU_OPT_STRING,
340
        },{
341
            .name = "feature_ecx",      /* cpuid 0000_0001.ecx */
342
            .type = QEMU_OPT_STRING,
343
        },{
344
            .name = "extfeature_edx",   /* cpuid 8000_0001.edx */
345
            .type = QEMU_OPT_STRING,
346
        },{
347
            .name = "extfeature_ecx",   /* cpuid 8000_0001.ecx */
348
            .type = QEMU_OPT_STRING,
349
        },{
350
            .name = "xlevel",
351
            .type = QEMU_OPT_NUMBER,
352
        },{
353
            .name = "model_id",
354
            .type = QEMU_OPT_STRING,
355
        },{
356
            .name = "vendor_override",
357
            .type = QEMU_OPT_NUMBER,
358
        },
359
        { /* end of list */ }
360
    },
361
};
362

    
363
QemuOptsList qemu_spice_opts = {
364
    .name = "spice",
365
    .head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head),
366
    .desc = {
367
        {
368
            .name = "port",
369
            .type = QEMU_OPT_NUMBER,
370
        },{
371
            .name = "tls-port",
372
            .type = QEMU_OPT_NUMBER,
373
        },{
374
            .name = "addr",
375
            .type = QEMU_OPT_STRING,
376
        },{
377
            .name = "ipv4",
378
            .type = QEMU_OPT_BOOL,
379
        },{
380
            .name = "ipv6",
381
            .type = QEMU_OPT_BOOL,
382
        },{
383
            .name = "password",
384
            .type = QEMU_OPT_STRING,
385
        },{
386
            .name = "disable-ticketing",
387
            .type = QEMU_OPT_BOOL,
388
        },{
389
            .name = "x509-dir",
390
            .type = QEMU_OPT_STRING,
391
        },{
392
            .name = "x509-key-file",
393
            .type = QEMU_OPT_STRING,
394
        },{
395
            .name = "x509-key-password",
396
            .type = QEMU_OPT_STRING,
397
        },{
398
            .name = "x509-cert-file",
399
            .type = QEMU_OPT_STRING,
400
        },{
401
            .name = "x509-cacert-file",
402
            .type = QEMU_OPT_STRING,
403
        },{
404
            .name = "x509-dh-key-file",
405
            .type = QEMU_OPT_STRING,
406
        },{
407
            .name = "tls-ciphers",
408
            .type = QEMU_OPT_STRING,
409
        },{
410
            .name = "tls-channel",
411
            .type = QEMU_OPT_STRING,
412
        },{
413
            .name = "plaintext-channel",
414
            .type = QEMU_OPT_STRING,
415
        },{
416
            .name = "image-compression",
417
            .type = QEMU_OPT_STRING,
418
        },{
419
            .name = "jpeg-wan-compression",
420
            .type = QEMU_OPT_STRING,
421
        },{
422
            .name = "zlib-glz-wan-compression",
423
            .type = QEMU_OPT_STRING,
424
        },{
425
            .name = "streaming-video",
426
            .type = QEMU_OPT_STRING,
427
        },{
428
            .name = "agent-mouse",
429
            .type = QEMU_OPT_BOOL,
430
        },{
431
            .name = "playback-compression",
432
            .type = QEMU_OPT_BOOL,
433
        },
434
        { /* end if list */ }
435
    },
436
};
437

    
438
QemuOptsList qemu_option_rom_opts = {
439
    .name = "option-rom",
440
    .implied_opt_name = "romfile",
441
    .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
442
    .desc = {
443
        {
444
            .name = "bootindex",
445
            .type = QEMU_OPT_NUMBER,
446
        }, {
447
            .name = "romfile",
448
            .type = QEMU_OPT_STRING,
449
        },
450
        { /* end if list */ }
451
    },
452
};
453

    
454
static QemuOptsList *vm_config_groups[32] = {
455
    &qemu_drive_opts,
456
    &qemu_chardev_opts,
457
    &qemu_device_opts,
458
    &qemu_netdev_opts,
459
    &qemu_net_opts,
460
    &qemu_rtc_opts,
461
    &qemu_global_opts,
462
    &qemu_mon_opts,
463
    &qemu_cpudef_opts,
464
#ifdef CONFIG_SIMPLE_TRACE
465
    &qemu_trace_opts,
466
#endif
467
    &qemu_option_rom_opts,
468
    NULL,
469
};
470

    
471
static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
472
{
473
    int i;
474

    
475
    for (i = 0; lists[i] != NULL; i++) {
476
        if (strcmp(lists[i]->name, group) == 0)
477
            break;
478
    }
479
    if (lists[i] == NULL) {
480
        error_report("there is no option group \"%s\"", group);
481
    }
482
    return lists[i];
483
}
484

    
485
QemuOptsList *qemu_find_opts(const char *group)
486
{
487
    return find_list(vm_config_groups, group);
488
}
489

    
490
void qemu_add_opts(QemuOptsList *list)
491
{
492
    int entries, i;
493

    
494
    entries = ARRAY_SIZE(vm_config_groups);
495
    entries--; /* keep list NULL terminated */
496
    for (i = 0; i < entries; i++) {
497
        if (vm_config_groups[i] == NULL) {
498
            vm_config_groups[i] = list;
499
            return;
500
        }
501
    }
502
    fprintf(stderr, "ran out of space in vm_config_groups");
503
    abort();
504
}
505

    
506
int qemu_set_option(const char *str)
507
{
508
    char group[64], id[64], arg[64];
509
    QemuOptsList *list;
510
    QemuOpts *opts;
511
    int rc, offset;
512

    
513
    rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
514
    if (rc < 3 || str[offset] != '=') {
515
        error_report("can't parse: \"%s\"", str);
516
        return -1;
517
    }
518

    
519
    list = qemu_find_opts(group);
520
    if (list == NULL) {
521
        return -1;
522
    }
523

    
524
    opts = qemu_opts_find(list, id);
525
    if (!opts) {
526
        error_report("there is no %s \"%s\" defined",
527
                     list->name, id);
528
        return -1;
529
    }
530

    
531
    if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
532
        return -1;
533
    }
534
    return 0;
535
}
536

    
537
int qemu_global_option(const char *str)
538
{
539
    char driver[64], property[64];
540
    QemuOpts *opts;
541
    int rc, offset;
542

    
543
    rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
544
    if (rc < 2 || str[offset] != '=') {
545
        error_report("can't parse: \"%s\"", str);
546
        return -1;
547
    }
548

    
549
    opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
550
    qemu_opt_set(opts, "driver", driver);
551
    qemu_opt_set(opts, "property", property);
552
    qemu_opt_set(opts, "value", str+offset+1);
553
    return 0;
554
}
555

    
556
struct ConfigWriteData {
557
    QemuOptsList *list;
558
    FILE *fp;
559
};
560

    
561
static int config_write_opt(const char *name, const char *value, void *opaque)
562
{
563
    struct ConfigWriteData *data = opaque;
564

    
565
    fprintf(data->fp, "  %s = \"%s\"\n", name, value);
566
    return 0;
567
}
568

    
569
static int config_write_opts(QemuOpts *opts, void *opaque)
570
{
571
    struct ConfigWriteData *data = opaque;
572
    const char *id = qemu_opts_id(opts);
573

    
574
    if (id) {
575
        fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
576
    } else {
577
        fprintf(data->fp, "[%s]\n", data->list->name);
578
    }
579
    qemu_opt_foreach(opts, config_write_opt, data, 0);
580
    fprintf(data->fp, "\n");
581
    return 0;
582
}
583

    
584
void qemu_config_write(FILE *fp)
585
{
586
    struct ConfigWriteData data = { .fp = fp };
587
    QemuOptsList **lists = vm_config_groups;
588
    int i;
589

    
590
    fprintf(fp, "# qemu config file\n\n");
591
    for (i = 0; lists[i] != NULL; i++) {
592
        data.list = lists[i];
593
        qemu_opts_foreach(data.list, config_write_opts, &data, 0);
594
    }
595
}
596

    
597
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
598
{
599
    char line[1024], group[64], id[64], arg[64], value[1024];
600
    Location loc;
601
    QemuOptsList *list = NULL;
602
    QemuOpts *opts = NULL;
603
    int res = -1, lno = 0;
604

    
605
    loc_push_none(&loc);
606
    while (fgets(line, sizeof(line), fp) != NULL) {
607
        loc_set_file(fname, ++lno);
608
        if (line[0] == '\n') {
609
            /* skip empty lines */
610
            continue;
611
        }
612
        if (line[0] == '#') {
613
            /* comment */
614
            continue;
615
        }
616
        if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
617
            /* group with id */
618
            list = find_list(lists, group);
619
            if (list == NULL)
620
                goto out;
621
            opts = qemu_opts_create(list, id, 1);
622
            continue;
623
        }
624
        if (sscanf(line, "[%63[^]]]", group) == 1) {
625
            /* group without id */
626
            list = find_list(lists, group);
627
            if (list == NULL)
628
                goto out;
629
            opts = qemu_opts_create(list, NULL, 0);
630
            continue;
631
        }
632
        if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
633
            /* arg = value */
634
            if (opts == NULL) {
635
                error_report("no group defined");
636
                goto out;
637
            }
638
            if (qemu_opt_set(opts, arg, value) != 0) {
639
                goto out;
640
            }
641
            continue;
642
        }
643
        error_report("parse error");
644
        goto out;
645
    }
646
    if (ferror(fp)) {
647
        error_report("error reading file");
648
        goto out;
649
    }
650
    res = 0;
651
out:
652
    loc_pop(&loc);
653
    return res;
654
}
655

    
656
int qemu_read_config_file(const char *filename)
657
{
658
    FILE *f = fopen(filename, "r");
659
    int ret;
660

    
661
    if (f == NULL) {
662
        return -errno;
663
    }
664

    
665
    ret = qemu_config_parse(f, vm_config_groups, filename);
666
    fclose(f);
667

    
668
    if (ret == 0) {
669
        return 0;
670
    } else {
671
        return -EINVAL;
672
    }
673
}