vl.c 91.6 KB
Newer Older
1
/*
bellard's avatar
bellard committed
2
 * QEMU System Emulator
3
 * 
bellard's avatar
bellard committed
4
 * Copyright (c) 2003-2004 Fabrice Bellard
5
 * 
bellard's avatar
bellard committed
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
23
 */
bellard's avatar
bellard committed
24
25
#include "vl.h"

26
27
28
29
30
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
bellard's avatar
bellard committed
31
32
33
34
#include <sys/time.h>

#ifndef _WIN32
#include <sys/times.h>
bellard's avatar
bellard committed
35
#include <sys/wait.h>
bellard's avatar
bellard committed
36
37
38
#include <termios.h>
#include <sys/poll.h>
#include <sys/mman.h>
bellard's avatar
bellard committed
39
40
#include <sys/ioctl.h>
#include <sys/socket.h>
bellard's avatar
bellard committed
41
#include <netinet/in.h>
bellard's avatar
bellard committed
42
#include <dirent.h>
bellard's avatar
bellard committed
43
44
#ifdef _BSD
#include <sys/stat.h>
45
#ifndef __APPLE__
bellard's avatar
bellard committed
46
#include <libutil.h>
47
#endif
bellard's avatar
bellard committed
48
#else
bellard's avatar
bellard committed
49
50
#include <linux/if.h>
#include <linux/if_tun.h>
bellard's avatar
bellard committed
51
52
#include <pty.h>
#include <malloc.h>
53
#include <linux/rtc.h>
bellard's avatar
bellard committed
54
#endif
bellard's avatar
bellard committed
55
#endif
bellard's avatar
bellard committed
56

bellard's avatar
bellard committed
57
58
59
60
#if defined(CONFIG_SLIRP)
#include "libslirp.h"
#endif

bellard's avatar
bellard committed
61
#ifdef _WIN32
bellard's avatar
bellard committed
62
#include <malloc.h>
bellard's avatar
bellard committed
63
64
65
66
67
68
#include <sys/timeb.h>
#include <windows.h>
#define getopt_long_only getopt_long
#define memalign(align, size) malloc(size)
#endif

bellard's avatar
bellard committed
69
#ifdef CONFIG_SDL
bellard's avatar
bellard committed
70
#ifdef __APPLE__
71
#include <SDL/SDL.h>
bellard's avatar
bellard committed
72
#endif
bellard's avatar
bellard committed
73
#endif /* CONFIG_SDL */
74
75

#include "disas.h"
bellard's avatar
bellard committed
76

77
#include "exec-all.h"
78

79
80
//#define DO_TB_FLUSH

81
#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
bellard's avatar
bellard committed
82

83
//#define DEBUG_UNUSED_IOPORT
84
//#define DEBUG_IOPORT
85

86
#if !defined(CONFIG_SOFTMMU)
bellard's avatar
bellard committed
87
#define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
88
89
90
#else
#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
#endif
bellard's avatar
bellard committed
91

bellard's avatar
bellard committed
92
93
94
#ifdef TARGET_PPC
#define DEFAULT_RAM_SIZE 144
#else
95
#define DEFAULT_RAM_SIZE 128
bellard's avatar
bellard committed
96
#endif
97
98
/* in ms */
#define GUI_REFRESH_INTERVAL 30
99

100
101
/* XXX: use a two level table to limit memory usage */
#define MAX_IOPORTS 65536
102

bellard's avatar
bellard committed
103
const char *bios_dir = CONFIG_QEMU_SHAREDIR;
104
char phys_ram_file[1024];
105
106
CPUState *global_env;
CPUState *cpu_single_env;
107
void *ioport_opaque[MAX_IOPORTS];
bellard's avatar
bellard committed
108
109
IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
110
BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD];
111
int vga_ram_size;
bellard's avatar
bellard committed
112
int bios_size;
113
static DisplayState display_state;
114
int nographic;
115
const char* keyboard_layout = NULL;
116
int64_t ticks_per_sec;
117
int boot_device = 'c';
bellard's avatar
bellard committed
118
int ram_size;
bellard's avatar
bellard committed
119
120
static char network_script[1024];
int pit_min_timer_count = 0;
121
122
int nb_nics;
NetDriverState nd_table[MAX_NICS];
123
124
QEMUTimer *gui_timer;
int vm_running;
bellard's avatar
bellard committed
125
int audio_enabled = 0;
126
127
128
int sb16_enabled = 1;
int adlib_enabled = 1;
int gus_enabled = 1;
129
int pci_enabled = 1;
bellard's avatar
bellard committed
130
int prep_enabled = 0;
bellard's avatar
bellard committed
131
int rtc_utc = 1;
132
133
134
int cirrus_vga_enabled = 1;
int graphic_width = 800;
int graphic_height = 600;
135
int graphic_depth = 15;
bellard's avatar
bellard committed
136
int full_screen = 0;
bellard's avatar
bellard committed
137
TextConsole *vga_console;
138
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
139
140

/***********************************************************/
141
142
143
/* x86 ISA bus support */

target_phys_addr_t isa_mem_base = 0;
144

145
uint32_t default_ioport_readb(void *opaque, uint32_t address)
146
147
148
149
{
#ifdef DEBUG_UNUSED_IOPORT
    fprintf(stderr, "inb: port=0x%04x\n", address);
#endif
bellard's avatar
bellard committed
150
    return 0xff;
151
152
}

153
void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
154
155
156
157
158
159
160
{
#ifdef DEBUG_UNUSED_IOPORT
    fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
#endif
}

/* default is to make two byte accesses */
161
uint32_t default_ioport_readw(void *opaque, uint32_t address)
162
163
{
    uint32_t data;
bellard's avatar
bellard committed
164
165
166
    data = ioport_read_table[0][address](ioport_opaque[address], address);
    address = (address + 1) & (MAX_IOPORTS - 1);
    data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
167
168
169
    return data;
}

170
void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
171
{
bellard's avatar
bellard committed
172
173
174
    ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
    address = (address + 1) & (MAX_IOPORTS - 1);
    ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
175
176
}

177
uint32_t default_ioport_readl(void *opaque, uint32_t address)
178
{
bellard's avatar
bellard committed
179
180
181
182
#ifdef DEBUG_UNUSED_IOPORT
    fprintf(stderr, "inl: port=0x%04x\n", address);
#endif
    return 0xffffffff;
183
184
}

185
void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
186
{
bellard's avatar
bellard committed
187
188
189
#ifdef DEBUG_UNUSED_IOPORT
    fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
#endif
190
191
}

bellard's avatar
bellard committed
192
void init_ioports(void)
193
194
195
{
    int i;

bellard's avatar
bellard committed
196
197
198
199
200
201
202
203
    for(i = 0; i < MAX_IOPORTS; i++) {
        ioport_read_table[0][i] = default_ioport_readb;
        ioport_write_table[0][i] = default_ioport_writeb;
        ioport_read_table[1][i] = default_ioport_readw;
        ioport_write_table[1][i] = default_ioport_writew;
        ioport_read_table[2][i] = default_ioport_readl;
        ioport_write_table[2][i] = default_ioport_writel;
    }
204
205
}

bellard's avatar
bellard committed
206
/* size is the word size in byte */
207
208
int register_ioport_read(int start, int length, int size, 
                         IOPortReadFunc *func, void *opaque)
bellard's avatar
bellard committed
209
{
bellard's avatar
bellard committed
210
    int i, bsize;
bellard's avatar
bellard committed
211

212
    if (size == 1) {
bellard's avatar
bellard committed
213
        bsize = 0;
214
    } else if (size == 2) {
bellard's avatar
bellard committed
215
        bsize = 1;
216
    } else if (size == 4) {
bellard's avatar
bellard committed
217
        bsize = 2;
218
219
    } else {
        hw_error("register_ioport_read: invalid size");
bellard's avatar
bellard committed
220
        return -1;
221
222
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
223
        ioport_read_table[bsize][i] = func;
224
225
226
227
        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
            hw_error("register_ioport_read: invalid opaque");
        ioport_opaque[i] = opaque;
    }
bellard's avatar
bellard committed
228
229
230
    return 0;
}

bellard's avatar
bellard committed
231
/* size is the word size in byte */
232
233
int register_ioport_write(int start, int length, int size, 
                          IOPortWriteFunc *func, void *opaque)
bellard's avatar
bellard committed
234
{
bellard's avatar
bellard committed
235
    int i, bsize;
bellard's avatar
bellard committed
236

237
    if (size == 1) {
bellard's avatar
bellard committed
238
        bsize = 0;
239
    } else if (size == 2) {
bellard's avatar
bellard committed
240
        bsize = 1;
241
    } else if (size == 4) {
bellard's avatar
bellard committed
242
        bsize = 2;
243
244
    } else {
        hw_error("register_ioport_write: invalid size");
bellard's avatar
bellard committed
245
        return -1;
246
247
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
248
        ioport_write_table[bsize][i] = func;
249
250
251
252
        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
            hw_error("register_ioport_read: invalid opaque");
        ioport_opaque[i] = opaque;
    }
bellard's avatar
bellard committed
253
254
255
    return 0;
}

bellard's avatar
bellard committed
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
void isa_unassign_ioport(int start, int length)
{
    int i;

    for(i = start; i < start + length; i++) {
        ioport_read_table[0][i] = default_ioport_readb;
        ioport_read_table[1][i] = default_ioport_readw;
        ioport_read_table[2][i] = default_ioport_readl;

        ioport_write_table[0][i] = default_ioport_writeb;
        ioport_write_table[1][i] = default_ioport_writew;
        ioport_write_table[2][i] = default_ioport_writel;
    }
}

271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
void pstrcpy(char *buf, int buf_size, const char *str)
{
    int c;
    char *q = buf;

    if (buf_size <= 0)
        return;

    for(;;) {
        c = *str++;
        if (c == 0 || q >= buf + buf_size - 1)
            break;
        *q++ = c;
    }
    *q = '\0';
}

/* strcat and truncate. */
char *pstrcat(char *buf, int buf_size, const char *s)
{
    int len;
    len = strlen(buf);
    if (len < buf_size) 
        pstrcpy(buf + len, buf_size - len, s);
    return buf;
}

bellard's avatar
bellard committed
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
int strstart(const char *str, const char *val, const char **ptr)
{
    const char *p, *q;
    p = str;
    q = val;
    while (*q != '\0') {
        if (*p != *q)
            return 0;
        p++;
        q++;
    }
    if (ptr)
        *ptr = p;
    return 1;
}

bellard's avatar
bellard committed
314
315
316
317
318
319
320
321
322
323
324
325
/* return the size or -1 if error */
int get_image_size(const char *filename)
{
    int fd, size;
    fd = open(filename, O_RDONLY | O_BINARY);
    if (fd < 0)
        return -1;
    size = lseek(fd, 0, SEEK_END);
    close(fd);
    return size;
}

326
327
328
329
/* return the size or -1 if error */
int load_image(const char *filename, uint8_t *addr)
{
    int fd, size;
bellard's avatar
bellard committed
330
    fd = open(filename, O_RDONLY | O_BINARY);
331
332
333
334
335
336
337
338
339
340
341
342
    if (fd < 0)
        return -1;
    size = lseek(fd, 0, SEEK_END);
    lseek(fd, 0, SEEK_SET);
    if (read(fd, addr, size) != size) {
        close(fd);
        return -1;
    }
    close(fd);
    return size;
}

343
void cpu_outb(CPUState *env, int addr, int val)
344
{
345
346
347
348
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outb: %04x %02x\n", addr, val);
#endif    
349
    ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
350
351
}

352
void cpu_outw(CPUState *env, int addr, int val)
353
{
354
355
356
357
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outw: %04x %04x\n", addr, val);
#endif    
358
    ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
359
360
}

361
void cpu_outl(CPUState *env, int addr, int val)
362
{
363
364
365
366
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outl: %04x %08x\n", addr, val);
#endif
367
    ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
368
369
}

370
int cpu_inb(CPUState *env, int addr)
371
{
372
373
374
375
376
377
378
    int val;
    val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "inb : %04x %02x\n", addr, val);
#endif
    return val;
379
380
}

381
int cpu_inw(CPUState *env, int addr)
382
{
383
384
385
386
387
388
389
    int val;
    val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "inw : %04x %04x\n", addr, val);
#endif
    return val;
390
391
}

392
int cpu_inl(CPUState *env, int addr)
393
{
394
395
396
397
398
399
400
    int val;
    val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "inl : %04x %08x\n", addr, val);
#endif
    return val;
401
402
403
404
405
406
407
408
409
410
411
412
}

/***********************************************************/
void hw_error(const char *fmt, ...)
{
    va_list ap;

    va_start(ap, fmt);
    fprintf(stderr, "qemu: hardware error: ");
    vfprintf(stderr, fmt, ap);
    fprintf(stderr, "\n");
#ifdef TARGET_I386
bellard's avatar
bellard committed
413
    cpu_dump_state(global_env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP);
414
#else
bellard's avatar
bellard committed
415
    cpu_dump_state(global_env, stderr, fprintf, 0);
416
417
418
419
420
#endif
    va_end(ap);
    abort();
}

bellard's avatar
bellard committed
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
/***********************************************************/
/* keyboard/mouse */

static QEMUPutKBDEvent *qemu_put_kbd_event;
static void *qemu_put_kbd_event_opaque;
static QEMUPutMouseEvent *qemu_put_mouse_event;
static void *qemu_put_mouse_event_opaque;

void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
{
    qemu_put_kbd_event_opaque = opaque;
    qemu_put_kbd_event = func;
}

void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque)
{
    qemu_put_mouse_event_opaque = opaque;
    qemu_put_mouse_event = func;
}

void kbd_put_keycode(int keycode)
{
    if (qemu_put_kbd_event) {
        qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
    }
}

void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
{
    if (qemu_put_mouse_event) {
        qemu_put_mouse_event(qemu_put_mouse_event_opaque, 
                             dx, dy, dz, buttons_state);
    }
}

456
457
458
/***********************************************************/
/* timers */

459
460
461
#if defined(__powerpc__)

static inline uint32_t get_tbl(void) 
462
{
463
464
465
    uint32_t tbl;
    asm volatile("mftb %0" : "=r" (tbl));
    return tbl;
466
467
}

468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
static inline uint32_t get_tbu(void) 
{
	uint32_t tbl;
	asm volatile("mftbu %0" : "=r" (tbl));
	return tbl;
}

int64_t cpu_get_real_ticks(void)
{
    uint32_t l, h, h1;
    /* NOTE: we test if wrapping has occurred */
    do {
        h = get_tbu();
        l = get_tbl();
        h1 = get_tbu();
    } while (h != h1);
    return ((int64_t)h << 32) | l;
}

#elif defined(__i386__)

int64_t cpu_get_real_ticks(void)
490
491
{
    int64_t val;
bellard's avatar
bellard committed
492
    asm volatile ("rdtsc" : "=A" (val));
493
494
495
    return val;
}

bellard's avatar
bellard committed
496
497
498
499
500
501
502
503
504
505
506
507
508
#elif defined(__x86_64__)

int64_t cpu_get_real_ticks(void)
{
    uint32_t low,high;
    int64_t val;
    asm volatile("rdtsc" : "=a" (low), "=d" (high));
    val = high;
    val <<= 32;
    val |= low;
    return val;
}

509
510
511
512
513
#else
#error unsupported CPU
#endif

static int64_t cpu_ticks_offset;
514
static int cpu_ticks_enabled;
515

516
static inline int64_t cpu_get_ticks(void)
517
{
518
519
520
521
522
    if (!cpu_ticks_enabled) {
        return cpu_ticks_offset;
    } else {
        return cpu_get_real_ticks() + cpu_ticks_offset;
    }
523
524
525
526
527
}

/* enable cpu_get_ticks() */
void cpu_enable_ticks(void)
{
528
529
530
531
    if (!cpu_ticks_enabled) {
        cpu_ticks_offset -= cpu_get_real_ticks();
        cpu_ticks_enabled = 1;
    }
532
533
534
535
536
537
}

/* disable cpu_get_ticks() : the clock is stopped. You must not call
   cpu_get_ticks() after that.  */
void cpu_disable_ticks(void)
{
538
539
540
541
    if (cpu_ticks_enabled) {
        cpu_ticks_offset = cpu_get_ticks();
        cpu_ticks_enabled = 0;
    }
542
543
}

bellard's avatar
bellard committed
544
static int64_t get_clock(void)
545
{
bellard's avatar
bellard committed
546
547
548
549
550
#ifdef _WIN32
    struct _timeb tb;
    _ftime(&tb);
    return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
#else
551
552
553
    struct timeval tv;
    gettimeofday(&tv, NULL);
    return tv.tv_sec * 1000000LL + tv.tv_usec;
bellard's avatar
bellard committed
554
#endif
555
556
}

557
558
559
560
561
void cpu_calibrate_ticks(void)
{
    int64_t usec, ticks;

    usec = get_clock();
562
    ticks = cpu_get_real_ticks();
bellard's avatar
bellard committed
563
564
565
#ifdef _WIN32
    Sleep(50);
#else
566
    usleep(50 * 1000);
bellard's avatar
bellard committed
567
#endif
568
    usec = get_clock() - usec;
569
    ticks = cpu_get_real_ticks() - ticks;
570
571
572
    ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
}

573
/* compute with 96 bit intermediate result: (a*b)/c */
bellard's avatar
bellard committed
574
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
{
    union {
        uint64_t ll;
        struct {
#ifdef WORDS_BIGENDIAN
            uint32_t high, low;
#else
            uint32_t low, high;
#endif            
        } l;
    } u, res;
    uint64_t rl, rh;

    u.ll = a;
    rl = (uint64_t)u.l.low * (uint64_t)b;
    rh = (uint64_t)u.l.high * (uint64_t)b;
    rh += (rl >> 32);
    res.l.high = rh / c;
    res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
    return res.ll;
}

597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
#define QEMU_TIMER_REALTIME 0
#define QEMU_TIMER_VIRTUAL  1

struct QEMUClock {
    int type;
    /* XXX: add frequency */
};

struct QEMUTimer {
    QEMUClock *clock;
    int64_t expire_time;
    QEMUTimerCB *cb;
    void *opaque;
    struct QEMUTimer *next;
};

QEMUClock *rt_clock;
QEMUClock *vm_clock;

static QEMUTimer *active_timers[2];
bellard's avatar
bellard committed
617
618
619
#ifdef _WIN32
static MMRESULT timerID;
#else
620
621
/* frequency of the times() clock tick */
static int timer_freq;
bellard's avatar
bellard committed
622
#endif
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717

QEMUClock *qemu_new_clock(int type)
{
    QEMUClock *clock;
    clock = qemu_mallocz(sizeof(QEMUClock));
    if (!clock)
        return NULL;
    clock->type = type;
    return clock;
}

QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
{
    QEMUTimer *ts;

    ts = qemu_mallocz(sizeof(QEMUTimer));
    ts->clock = clock;
    ts->cb = cb;
    ts->opaque = opaque;
    return ts;
}

void qemu_free_timer(QEMUTimer *ts)
{
    qemu_free(ts);
}

/* stop a timer, but do not dealloc it */
void qemu_del_timer(QEMUTimer *ts)
{
    QEMUTimer **pt, *t;

    /* NOTE: this code must be signal safe because
       qemu_timer_expired() can be called from a signal. */
    pt = &active_timers[ts->clock->type];
    for(;;) {
        t = *pt;
        if (!t)
            break;
        if (t == ts) {
            *pt = t->next;
            break;
        }
        pt = &t->next;
    }
}

/* modify the current timer so that it will be fired when current_time
   >= expire_time. The corresponding callback will be called. */
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
{
    QEMUTimer **pt, *t;

    qemu_del_timer(ts);

    /* add the timer in the sorted list */
    /* NOTE: this code must be signal safe because
       qemu_timer_expired() can be called from a signal. */
    pt = &active_timers[ts->clock->type];
    for(;;) {
        t = *pt;
        if (!t)
            break;
        if (t->expire_time > expire_time) 
            break;
        pt = &t->next;
    }
    ts->expire_time = expire_time;
    ts->next = *pt;
    *pt = ts;
}

int qemu_timer_pending(QEMUTimer *ts)
{
    QEMUTimer *t;
    for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
        if (t == ts)
            return 1;
    }
    return 0;
}

static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
{
    if (!timer_head)
        return 0;
    return (timer_head->expire_time <= current_time);
}

static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
{
    QEMUTimer *ts;
    
    for(;;) {
        ts = *ptimer_head;
718
        if (!ts || ts->expire_time > current_time)
719
720
721
722
723
724
725
726
727
728
729
730
731
732
            break;
        /* remove timer from the list before calling the callback */
        *ptimer_head = ts->next;
        ts->next = NULL;
        
        /* run the callback (the timer list can be modified) */
        ts->cb(ts->opaque);
    }
}

int64_t qemu_get_clock(QEMUClock *clock)
{
    switch(clock->type) {
    case QEMU_TIMER_REALTIME:
bellard's avatar
bellard committed
733
734
735
#ifdef _WIN32
        return GetTickCount();
#else
bellard's avatar
bellard committed
736
737
738
739
740
741
742
743
744
745
746
        {
            struct tms tp;

            /* Note that using gettimeofday() is not a good solution
               for timers because its value change when the date is
               modified. */
            if (timer_freq == 100) {
                return times(&tp) * 10;
            } else {
                return ((int64_t)times(&tp) * 1000) / timer_freq;
            }
747
        }
bellard's avatar
bellard committed
748
#endif
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
    default:
    case QEMU_TIMER_VIRTUAL:
        return cpu_get_ticks();
    }
}

/* save a timer */
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
{
    uint64_t expire_time;

    if (qemu_timer_pending(ts)) {
        expire_time = ts->expire_time;
    } else {
        expire_time = -1;
    }
    qemu_put_be64(f, expire_time);
}

void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
{
    uint64_t expire_time;

    expire_time = qemu_get_be64(f);
    if (expire_time != -1) {
        qemu_mod_timer(ts, expire_time);
    } else {
        qemu_del_timer(ts);
    }
}

static void timer_save(QEMUFile *f, void *opaque)
{
    if (cpu_ticks_enabled) {
        hw_error("cannot save state if virtual timers are running");
    }
    qemu_put_be64s(f, &cpu_ticks_offset);
    qemu_put_be64s(f, &ticks_per_sec);
}

static int timer_load(QEMUFile *f, void *opaque, int version_id)
{
    if (version_id != 1)
        return -EINVAL;
    if (cpu_ticks_enabled) {
        return -EINVAL;
    }
    qemu_get_be64s(f, &cpu_ticks_offset);
    qemu_get_be64s(f, &ticks_per_sec);
    return 0;
}

bellard's avatar
bellard committed
801
802
803
804
#ifdef _WIN32
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg, 
                                 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
#else
805
static void host_alarm_handler(int host_signum)
bellard's avatar
bellard committed
806
#endif
807
{
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
#if 0
#define DISP_FREQ 1000
    {
        static int64_t delta_min = INT64_MAX;
        static int64_t delta_max, delta_cum, last_clock, delta, ti;
        static int count;
        ti = qemu_get_clock(vm_clock);
        if (last_clock != 0) {
            delta = ti - last_clock;
            if (delta < delta_min)
                delta_min = delta;
            if (delta > delta_max)
                delta_max = delta;
            delta_cum += delta;
            if (++count == DISP_FREQ) {
                printf("timer: min=%lld us max=%lld us avg=%lld us avg_freq=%0.3f Hz\n",
                       muldiv64(delta_min, 1000000, ticks_per_sec),
                       muldiv64(delta_max, 1000000, ticks_per_sec),
                       muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
                       (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
                count = 0;
                delta_min = INT64_MAX;
                delta_max = 0;
                delta_cum = 0;
            }
        }
        last_clock = ti;
    }
#endif
837
838
839
840
841
842
843
844
845
    if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
                           qemu_get_clock(vm_clock)) ||
        qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
                           qemu_get_clock(rt_clock))) {
        /* stop the cpu because a timer occured */
        cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
    }
}

846
847
#ifndef _WIN32

bellard's avatar
BSD fix    
bellard committed
848
849
#if defined(__linux__)

850
851
852
#define RTC_FREQ 1024

static int rtc_fd;
bellard's avatar
BSD fix    
bellard committed
853

854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
static int start_rtc_timer(void)
{
    rtc_fd = open("/dev/rtc", O_RDONLY);
    if (rtc_fd < 0)
        return -1;
    if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
        fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
                "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
                "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
        goto fail;
    }
    if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
    fail:
        close(rtc_fd);
        return -1;
    }
    pit_min_timer_count = PIT_FREQ / RTC_FREQ;
    return 0;
}

bellard's avatar
BSD fix    
bellard committed
874
875
876
877
878
879
880
881
882
883
#else

static int start_rtc_timer(void)
{
    return -1;
}

#endif /* !defined(__linux__) */

#endif /* !defined(_WIN32) */
884

885
886
887
888
889
static void init_timers(void)
{
    rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
    vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);

bellard's avatar
bellard committed
890
891
892
#ifdef _WIN32
    {
        int count=0;
bellard's avatar
bellard committed
893
894
895
896
897
        timerID = timeSetEvent(10,    // interval (ms)
                               0,     // resolution
                               host_alarm_handler, // function
                               (DWORD)&count,  // user parameter
                               TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
bellard's avatar
bellard committed
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
 	if( !timerID ) {
            perror("failed timer alarm");
            exit(1);
 	}
    }
    pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
#else
    {
        struct sigaction act;
        struct itimerval itv;
        
        /* get times() syscall frequency */
        timer_freq = sysconf(_SC_CLK_TCK);
        
        /* timer signal */
        sigfillset(&act.sa_mask);
        act.sa_flags = 0;
915
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
bellard's avatar
bellard committed
916
917
918
919
        act.sa_flags |= SA_ONSTACK;
#endif
        act.sa_handler = host_alarm_handler;
        sigaction(SIGALRM, &act, NULL);
920

bellard's avatar
bellard committed
921
922
923
924
925
926
927
928
        itv.it_interval.tv_sec = 0;
        itv.it_interval.tv_usec = 1000;
        itv.it_value.tv_sec = 0;
        itv.it_value.tv_usec = 10 * 1000;
        setitimer(ITIMER_REAL, &itv, NULL);
        /* we probe the tick duration of the kernel to inform the user if
           the emulated kernel requested a too high timer frequency */
        getitimer(ITIMER_REAL, &itv);
929

930
#if defined(__linux__)
931
932
933
934
935
936
937
938
939
940
941
942
        if (itv.it_interval.tv_usec > 1000) {
            /* try to use /dev/rtc to have a faster timer */
            if (start_rtc_timer() < 0)
                goto use_itimer;
            /* disable itimer */
            itv.it_interval.tv_sec = 0;
            itv.it_interval.tv_usec = 0;
            itv.it_value.tv_sec = 0;
            itv.it_value.tv_usec = 0;
            setitimer(ITIMER_REAL, &itv, NULL);

            /* use the RTC */
bellard's avatar
bellard committed
943
            sigaction(SIGIO, &act, NULL);
944
945
            fcntl(rtc_fd, F_SETFL, O_ASYNC);
            fcntl(rtc_fd, F_SETOWN, getpid());
946
947
948
        } else 
#endif /* defined(__linux__) */
        {
949
950
951
952
        use_itimer:
            pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * 
                                   PIT_FREQ) / 1000000;
        }
bellard's avatar
bellard committed
953
    }
954
955
956
#endif
}

bellard's avatar
bellard committed
957
958
959
960
961
962
963
void quit_timers(void)
{
#ifdef _WIN32
    timeKillEvent(timerID);
#endif
}

964
/***********************************************************/
bellard's avatar
bellard committed
965
/* character device */
966

bellard's avatar
bellard committed
967
968
969
970
int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
{
    return s->chr_write(s, buf, len);
}
bellard's avatar
bellard committed
971

bellard's avatar
bellard committed
972
void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
bellard's avatar
bellard committed
973
{
bellard's avatar
bellard committed
974
975
976
977
978
979
    char buf[4096];
    va_list ap;
    va_start(ap, fmt);
    vsnprintf(buf, sizeof(buf), fmt, ap);
    qemu_chr_write(s, buf, strlen(buf));
    va_end(ap);
bellard's avatar
bellard committed
980
981
}

bellard's avatar
bellard committed
982
983
984
985
986
987
void qemu_chr_send_event(CharDriverState *s, int event)
{
    if (s->chr_send_event)
        s->chr_send_event(s, event);
}

bellard's avatar
bellard committed
988
989
990
991
992
993
994
995
996
997
998
void qemu_chr_add_read_handler(CharDriverState *s, 
                               IOCanRWHandler *fd_can_read, 
                               IOReadHandler *fd_read, void *opaque)
{
    s->chr_add_read_handler(s, fd_can_read, fd_read, opaque);
}
             
void qemu_chr_add_event_handler(CharDriverState *s, IOEventHandler *chr_event)
{
    s->chr_event = chr_event;
}
bellard's avatar
bellard committed
999

bellard's avatar
bellard committed
1000
static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1001
{
bellard's avatar
bellard committed
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
    return len;
}

static void null_chr_add_read_handler(CharDriverState *chr, 
                                    IOCanRWHandler *fd_can_read, 
                                    IOReadHandler *fd_read, void *opaque)
{
}

CharDriverState *qemu_chr_open_null(void)
{
    CharDriverState *chr;

    chr = qemu_mallocz(sizeof(CharDriverState));
    if (!chr)
        return NULL;
    chr->chr_write = null_chr_write;
    chr->chr_add_read_handler = null_chr_add_read_handler;
    return chr;
}

#ifndef _WIN32

typedef struct {
    int fd_in, fd_out;
    /* for nographic stdio only */
    IOCanRWHandler *fd_can_read; 
    IOReadHandler *fd_read;
    void *fd_opaque;
} FDCharDriver;

#define STDIO_MAX_CLIENTS 2

static int stdio_nb_clients;
static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];

bellard's avatar
bellard committed
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
static int unix_write(int fd, const uint8_t *buf, int len1)
{
    int ret, len;

    len = len1;
    while (len > 0) {
        ret = write(fd, buf, len);
        if (ret < 0) {
            if (errno != EINTR && errno != EAGAIN)
                return -1;
        } else if (ret == 0) {
            break;
        } else {
            buf += ret;
            len -= ret;
        }
    }
    return len1 - len;
}

bellard's avatar
bellard committed
1058
1059
1060
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
{
    FDCharDriver *s = chr->opaque;
bellard's avatar
bellard committed
1061
    return unix_write(s->fd_out, buf, len);
bellard's avatar
bellard committed
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
}

static void fd_chr_add_read_handler(CharDriverState *chr, 
                                    IOCanRWHandler *fd_can_read, 
                                    IOReadHandler *fd_read, void *opaque)
{
    FDCharDriver *s = chr->opaque;

    if (nographic && s->fd_in == 0) {
        s->fd_can_read = fd_can_read;
        s->fd_read = fd_read;
        s->fd_opaque = opaque;
bellard's avatar
bellard committed
1074
    } else {
bellard's avatar
bellard committed
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
        qemu_add_fd_read_handler(s->fd_in, fd_can_read, fd_read, opaque);
    }
}

/* open a character device to a unix fd */
CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
{
    CharDriverState *chr;
    FDCharDriver *s;

    chr = qemu_mallocz(sizeof(CharDriverState));
    if (!chr)
        return NULL;
    s = qemu_mallocz(sizeof(FDCharDriver));
    if (!s) {
        free(chr);
        return NULL;
    }
    s->fd_in = fd_in;
    s->fd_out = fd_out;
    chr->opaque = s;
    chr->chr_write = fd_chr_write;
    chr->chr_add_read_handler = fd_chr_add_read_handler;
    return chr;
}

/* for STDIO, we handle the case where several clients use it
   (nographic mode) */

#define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */

static int term_got_escape, client_index;

void term_print_help(void)
{
    printf("\n"
           "C-a h    print this help\n"
           "C-a x    exit emulator\n"
           "C-a s    save disk data back to file (if -snapshot)\n"
           "C-a b    send break (magic sysrq)\n"
           "C-a c    switch between console and monitor\n"
           "C-a C-a  send C-a\n"
           );
}

/* called when a char is received */
static void stdio_received_byte(int ch)
{
    if (term_got_escape) {
        term_got_escape = 0;
        switch(ch) {
        case 'h':
            term_print_help();
            break;
        case 'x':
            exit(0);
            break;
        case 's': 
            {
                int i;
                for (i = 0; i < MAX_DISKS; i++) {
                    if (bs_table[i])
                        bdrv_commit(bs_table[i]);
                }
            }
            break;
        case 'b':
            if (client_index < stdio_nb_clients) {
                CharDriverState *chr;
                FDCharDriver *s;

                chr = stdio_clients[client_index];
                s = chr->opaque;
                chr->chr_event(s->fd_opaque, CHR_EVENT_BREAK);
            }
            break;
        case 'c':
            client_index++;
            if (client_index >= stdio_nb_clients)
                client_index = 0;
            if (client_index == 0) {
                /* send a new line in the monitor to get the prompt */
                ch = '\r';
                goto send_char;
            }
            break;
        case TERM_ESCAPE:
            goto send_char;
        }
    } else if (ch == TERM_ESCAPE) {
        term_got_escape = 1;
    } else {
    send_char:
        if (client_index < stdio_nb_clients) {
            uint8_t buf[1];
            CharDriverState *chr;
            FDCharDriver *s;
            
            chr = stdio_clients[client_index];
            s = chr->opaque;
            buf[0] = ch;
            /* XXX: should queue the char if the device is not
               ready */
            if (s->fd_can_read(s->fd_opaque) > 0) 
                s->fd_read(s->fd_opaque, buf, 1);
1180
        }
1181
1182
1183
    }
}

bellard's avatar
bellard committed
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
static int stdio_can_read(void *opaque)
{
    /* XXX: not strictly correct */
    return 1;
}

static void stdio_read(void *opaque, const uint8_t *buf, int size)
{
    int i;
    for(i = 0; i < size; i++)
        stdio_received_byte(buf[i]);
}

1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
/* init terminal so that we can grab keys */
static struct termios oldtty;
static int old_fd0_flags;

static void term_exit(void)
{
    tcsetattr (0, TCSANOW, &oldtty);
    fcntl(0, F_SETFL, old_fd0_flags);
}

static void term_init(void)
{
    struct termios tty;

    tcgetattr (0, &tty);
    oldtty = tty;
    old_fd0_flags = fcntl(0, F_GETFL);

    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
                          |INLCR|IGNCR|ICRNL|IXON);
    tty.c_oflag |= OPOST;
    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
    /* if graphical mode, we allow Ctrl-C handling */
    if (nographic)
        tty.c_lflag &= ~ISIG;
    tty.c_cflag &= ~(CSIZE|PARENB);
    tty.c_cflag |= CS8;
    tty.c_cc[VMIN] = 1;
    tty.c_cc[VTIME] = 0;
    
    tcsetattr (0, TCSANOW, &tty);

    atexit(term_exit);

    fcntl(0, F_SETFL, O_NONBLOCK);
}

bellard's avatar
bellard committed
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
CharDriverState *qemu_chr_open_stdio(void)
{
    CharDriverState *chr;

    if (nographic) {
        if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
            return NULL;
        chr = qemu_chr_open_fd(0, 1);
        if (stdio_nb_clients == 0)
            qemu_add_fd_read_handler(0, stdio_can_read, stdio_read, NULL);
        client_index = stdio_nb_clients;
    } else {
        if (stdio_nb_clients != 0)
            return NULL;
        chr = qemu_chr_open_fd(0, 1);
    }
    stdio_clients[stdio_nb_clients++] = chr;
1251
1252
1253
1254
    if (stdio_nb_clients == 1) {
        /* set the terminal in raw mode */
        term_init();
    }
bellard's avatar
bellard committed
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
    return chr;
}

#if defined(__linux__)
CharDriverState *qemu_chr_open_pty(void)
{
    char slave_name[1024];
    int master_fd, slave_fd;
    
    /* Not satisfying */
    if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
        return NULL;
    }
    fprintf(stderr, "char device redirected to %s\n", slave_name);
    return qemu_chr_open_fd(master_fd, master_fd);
}
#else
CharDriverState *qemu_chr_open_pty(void)
{
    return NULL;
}
bellard's avatar
bellard committed
1276
1277
#endif

bellard's avatar
bellard committed
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
#endif /* !defined(_WIN32) */

CharDriverState *qemu_chr_open(const char *filename)
{
    if (!strcmp(filename, "vc")) {
        return text_console_init(&display_state);
    } else if (!strcmp(filename, "null")) {
        return qemu_chr_open_null();
    } else 
#ifndef _WIN32
    if (!strcmp(filename, "pty")) {
        return qemu_chr_open_pty();
    } else if (!strcmp(filename, "stdio")) {
        return qemu_chr_open_stdio();
    } else 
#endif
    {
        return NULL;
    }
}

bellard's avatar
bellard committed
1299
/***********************************************************/
bellard's avatar
bellard committed
1300
/* Linux network device redirectors */
1301

bellard's avatar
bellard committed
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
void hex_dump(FILE *f, const uint8_t *buf, int size)
{
    int len, i, j, c;

    for(i=0;i<size;i+=16) {
        len = size - i;
        if (len > 16)
            len = 16;
        fprintf(f, "%08x ", i);
        for(j=0;j<16;j++) {
            if (j < len)
                fprintf(f, " %02x", buf[i+j]);
            else
                fprintf(f, "   ");
        }
        fprintf(f, " ");
        for(j=0;j<len;j++) {
            c = buf[i+j];
            if (c < ' ' || c > '~')
                c = '.';
            fprintf(f, "%c", c);
        }
        fprintf(f, "\n");
    }
}

void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
{
    nd->send_packet(nd, buf, size);
}
bellard's avatar
bellard committed
1332

bellard's avatar
bellard committed
1333
1334
void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read, 
                          IOReadHandler *fd_read, void *opaque)
bellard's avatar
bellard committed
1335
{
bellard's avatar
bellard committed
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
    nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
}

/* dummy network adapter */

static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
{
}

static void dummy_add_read_packet(NetDriverState *nd, 
                                  IOCanRWHandler *fd_can_read, 
                                  IOReadHandler *fd_read, void *opaque)
{
}

static int net_dummy_init(NetDriverState *nd)
{
    nd->send_packet = dummy_send_packet;
    nd->add_read_packet = dummy_add_read_packet;
    pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
bellard's avatar
bellard committed
1356
1357
1358
    return 0;
}

bellard's avatar
bellard committed
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
#if defined(CONFIG_SLIRP)

/* slirp network adapter */

static void *slirp_fd_opaque;
static IOCanRWHandler *slirp_fd_can_read;
static IOReadHandler *slirp_fd_read;
static int slirp_inited;

int slirp_can_output(void)
{
    return slirp_fd_can_read(slirp_fd_opaque);
}

void slirp_output(const uint8_t *pkt, int pkt_len)
bellard's avatar
bellard committed
1374
{
bellard's avatar
bellard committed
1375
1376
1377
1378
1379
#if 0
    printf("output:\n");
    hex_dump(stdout, pkt, pkt_len);
#endif
    slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
bellard's avatar
bellard committed
1380
1381
}

bellard's avatar
bellard committed
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
{
#if 0
    printf("input:\n");
    hex_dump(stdout, buf, size);
#endif
    slirp_input(buf, size);
}

static void slirp_add_read_packet(NetDriverState *nd, 
                                  IOCanRWHandler *fd_can_read, 
                                  IOReadHandler *fd_read, void *opaque)
{
    slirp_fd_opaque = opaque;
    slirp_fd_can_read = fd_can_read;
    slirp_fd_read = fd_read;
}

static int net_slirp_init(NetDriverState *nd)
{
    if (!slirp_inited) {
        slirp_inited = 1;
        slirp_init();
    }
    nd->send_packet = slirp_send_packet;
    nd->add_read_packet = slirp_add_read_packet;
    pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
    return 0;
}

bellard's avatar
bellard committed
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
{
    const char *p, *p1;
    int len;
    p = *pp;
    p1 = strchr(p, sep);
    if (!p1)
        return -1;
    len = p1 - p;
    p1++;
    if (buf_size > 0) {
        if (len > buf_size - 1)
            len = buf_size - 1;
        memcpy(buf, p, len);
        buf[len] = '\0';
    }
    *pp = p1;
    return 0;
}

static void net_slirp_redir(const char *redir_str)
{
    int is_udp;
    char buf[256], *r;
    const char *p;
    struct in_addr guest_addr;
    int host_port, guest_port;
    
    if (!slirp_inited) {
        slirp_inited = 1;
        slirp_init();
    }

    p = redir_str;
    if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
        goto fail;
    if (!strcmp(buf, "tcp")) {
        is_udp = 0;
    } else if (!strcmp(buf, "udp")) {
        is_udp = 1;
    } else {
        goto fail;
    }

    if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
        goto fail;
    host_port = strtol(buf, &r, 0);
    if (r == buf)
        goto fail;

    if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
        goto fail;
    if (buf[0] == '\0') {
        pstrcpy(buf, sizeof(buf), "10.0.2.15");
    }
    if (!inet_aton(buf, &guest_addr))
        goto fail;
    
    guest_port = strtol(p, &r, 0);
    if (r == p)
        goto fail;
    
    if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
        fprintf(stderr, "qemu: could not set up redirection\n");
        exit(1);
    }
    return;
 fail:
    fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
    exit(1);
}
bellard's avatar
bellard committed
1483
    
bellard's avatar
bellard committed
1484
1485
#ifndef _WIN32

bellard's avatar
bellard committed
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
char smb_dir[1024];

static void smb_exit(void)
{
    DIR *d;
    struct dirent *de;
    char filename[1024];

    /* erase all the files in the directory */
    d = opendir(smb_dir);
    for(;;) {
        de = readdir(d);
        if (!de)
            break;
        if (strcmp(de->d_name, ".") != 0 &&
            strcmp(de->d_name, "..") != 0) {
            snprintf(filename, sizeof(filename), "%s/%s", 
                     smb_dir, de->d_name);
            unlink(filename);
        }
    }
bellard's avatar
bellard committed
1507
    closedir(d);
bellard's avatar
bellard committed
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
    rmdir(smb_dir);
}

/* automatic user mode samba server configuration */
void net_slirp_smb(const char *exported_dir)
{
    char smb_conf[1024];
    char smb_cmdline[1024];
    FILE *f;

    if (!slirp_inited) {
        slirp_inited = 1;
        slirp_init();
    }

    /* XXX: better tmp dir construction */
    snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
    if (mkdir(smb_dir, 0700) < 0) {
        fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
        exit(1);
    }
    snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
    
    f = fopen(smb_conf, "w");
    if (!f) {
        fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
        exit(1);
    }
    fprintf(f, 
            "[global]\n"
            "pid directory=%s\n"
            "lock directory=%s\n"
            "log file=%s/log.smbd\n"
            "smb passwd file=%s/smbpasswd\n"
bellard's avatar
bellard committed
1542
            "security = share\n"
bellard's avatar
bellard committed
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
            "[qemu]\n"
            "path=%s\n"
            "read only=no\n"
            "guest ok=yes\n",
            smb_dir,
            smb_dir,
            smb_dir,
            smb_dir,
            exported_dir
            );
    fclose(f);
    atexit(smb_exit);

    snprintf(smb_cmdline, sizeof(smb_cmdline), "/usr/sbin/smbd -s %s",
             smb_conf);
    
    slirp_add_exec(0, smb_cmdline, 4, 139);
}
bellard's avatar
bellard committed
1561

bellard's avatar
bellard committed
1562
1563
#endif /* !defined(_WIN32) */

bellard's avatar
bellard committed
1564
1565
1566
#endif /* CONFIG_SLIRP */

#if !defined(_WIN32)
bellard's avatar
bellard committed
1567
1568
1569
1570
1571
1572
#ifdef _BSD
static int tun_open(char *ifname, int ifname_size)
{
    int fd;
    char *dev;
    struct stat s;
bellard's avatar
bellard committed
1573