adb.c revision 1f546e6d1f6ccd1964336ddf0d8e8b3b11b1e945 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define  TRACE_TAG   TRACE_ADB
18
19#include <stdio.h>
20#include <stdlib.h>
21#include <ctype.h>
22#include <stdarg.h>
23#include <errno.h>
24#include <string.h>
25#include <time.h>
26#include <sys/time.h>
27
28#include "sysdeps.h"
29#include "adb.h"
30
31#if !ADB_HOST
32#include <private/android_filesystem_config.h>
33#else
34#include "usb_vendors.h"
35#endif
36
37
38int HOST = 0;
39
40static const char *adb_device_banner = "device";
41
42void fatal(const char *fmt, ...)
43{
44    va_list ap;
45    va_start(ap, fmt);
46    fprintf(stderr, "error: ");
47    vfprintf(stderr, fmt, ap);
48    fprintf(stderr, "\n");
49    va_end(ap);
50    exit(-1);
51}
52
53void fatal_errno(const char *fmt, ...)
54{
55    va_list ap;
56    va_start(ap, fmt);
57    fprintf(stderr, "error: %s: ", strerror(errno));
58    vfprintf(stderr, fmt, ap);
59    fprintf(stderr, "\n");
60    va_end(ap);
61    exit(-1);
62}
63
64int   adb_trace_mask;
65
66/* read a comma/space/colum/semi-column separated list of tags
67 * from the ADB_TRACE environment variable and build the trace
68 * mask from it. note that '1' and 'all' are special cases to
69 * enable all tracing
70 */
71void  adb_trace_init(void)
72{
73    const char*  p = getenv("ADB_TRACE");
74    const char*  q;
75
76    static const struct {
77        const char*  tag;
78        int           flag;
79    } tags[] = {
80        { "1", 0 },
81        { "all", 0 },
82        { "adb", TRACE_ADB },
83        { "sockets", TRACE_SOCKETS },
84        { "packets", TRACE_PACKETS },
85        { "rwx", TRACE_RWX },
86        { "usb", TRACE_USB },
87        { "sync", TRACE_SYNC },
88        { "sysdeps", TRACE_SYSDEPS },
89        { "transport", TRACE_TRANSPORT },
90        { "jdwp", TRACE_JDWP },
91        { NULL, 0 }
92    };
93
94    if (p == NULL)
95            return;
96
97    /* use a comma/column/semi-colum/space separated list */
98    while (*p) {
99        int  len, tagn;
100
101        q = strpbrk(p, " ,:;");
102        if (q == NULL) {
103            q = p + strlen(p);
104        }
105        len = q - p;
106
107        for (tagn = 0; tags[tagn].tag != NULL; tagn++)
108        {
109            int  taglen = strlen(tags[tagn].tag);
110
111            if (len == taglen && !memcmp(tags[tagn].tag, p, len) )
112            {
113                int  flag = tags[tagn].flag;
114                if (flag == 0) {
115                    adb_trace_mask = ~0;
116                    return;
117                }
118                adb_trace_mask |= (1 << flag);
119                break;
120            }
121        }
122        p = q;
123        if (*p)
124            p++;
125    }
126}
127
128
129apacket *get_apacket(void)
130{
131    apacket *p = malloc(sizeof(apacket));
132    if(p == 0) fatal("failed to allocate an apacket");
133    memset(p, 0, sizeof(apacket) - MAX_PAYLOAD);
134    return p;
135}
136
137void put_apacket(apacket *p)
138{
139    free(p);
140}
141
142void handle_online(void)
143{
144    D("adb: online\n");
145#if !ADB_HOST
146    property_set("adb.connected","1");
147#endif
148}
149
150void handle_offline(atransport *t)
151{
152    D("adb: offline\n");
153    //Close the associated usb
154    run_transport_disconnects(t);
155#if !ADB_HOST
156    property_set("adb.connected","");
157#endif
158}
159
160#if TRACE_PACKETS
161#define DUMPMAX 32
162void print_packet(const char *label, apacket *p)
163{
164    char *tag;
165    char *x;
166    unsigned count;
167
168    switch(p->msg.command){
169    case A_SYNC: tag = "SYNC"; break;
170    case A_CNXN: tag = "CNXN" ; break;
171    case A_OPEN: tag = "OPEN"; break;
172    case A_OKAY: tag = "OKAY"; break;
173    case A_CLSE: tag = "CLSE"; break;
174    case A_WRTE: tag = "WRTE"; break;
175    default: tag = "????"; break;
176    }
177
178    fprintf(stderr, "%s: %s %08x %08x %04x \"",
179            label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length);
180    count = p->msg.data_length;
181    x = (char*) p->data;
182    if(count > DUMPMAX) {
183        count = DUMPMAX;
184        tag = "\n";
185    } else {
186        tag = "\"\n";
187    }
188    while(count-- > 0){
189        if((*x >= ' ') && (*x < 127)) {
190            fputc(*x, stderr);
191        } else {
192            fputc('.', stderr);
193        }
194        x++;
195    }
196    fprintf(stderr, tag);
197}
198#endif
199
200static void send_ready(unsigned local, unsigned remote, atransport *t)
201{
202    D("Calling send_ready \n");
203    apacket *p = get_apacket();
204    p->msg.command = A_OKAY;
205    p->msg.arg0 = local;
206    p->msg.arg1 = remote;
207    send_packet(p, t);
208}
209
210static void send_close(unsigned local, unsigned remote, atransport *t)
211{
212    D("Calling send_close \n");
213    apacket *p = get_apacket();
214    p->msg.command = A_CLSE;
215    p->msg.arg0 = local;
216    p->msg.arg1 = remote;
217    send_packet(p, t);
218}
219
220static void send_connect(atransport *t)
221{
222    D("Calling send_connect \n");
223    apacket *cp = get_apacket();
224    cp->msg.command = A_CNXN;
225    cp->msg.arg0 = A_VERSION;
226    cp->msg.arg1 = MAX_PAYLOAD;
227    snprintf((char*) cp->data, sizeof cp->data, "%s::",
228            HOST ? "host" : adb_device_banner);
229    cp->msg.data_length = strlen((char*) cp->data) + 1;
230    send_packet(cp, t);
231#if ADB_HOST
232        /* XXX why sleep here? */
233    // allow the device some time to respond to the connect message
234    adb_sleep_ms(1000);
235#endif
236}
237
238static char *connection_state_name(atransport *t)
239{
240    if (t == NULL) {
241        return "unknown";
242    }
243
244    switch(t->connection_state) {
245    case CS_BOOTLOADER:
246        return "bootloader";
247    case CS_DEVICE:
248        return "device";
249    case CS_OFFLINE:
250        return "offline";
251    default:
252        return "unknown";
253    }
254}
255
256void parse_banner(char *banner, atransport *t)
257{
258    char *type, *product, *end;
259
260    D("parse_banner: %s\n", banner);
261    type = banner;
262    product = strchr(type, ':');
263    if(product) {
264        *product++ = 0;
265    } else {
266        product = "";
267    }
268
269        /* remove trailing ':' */
270    end = strchr(product, ':');
271    if(end) *end = 0;
272
273        /* save product name in device structure */
274    if (t->product == NULL) {
275        t->product = strdup(product);
276    } else if (strcmp(product, t->product) != 0) {
277        free(t->product);
278        t->product = strdup(product);
279    }
280
281    if(!strcmp(type, "bootloader")){
282        D("setting connection_state to CS_BOOTLOADER\n");
283        t->connection_state = CS_BOOTLOADER;
284        update_transports();
285        return;
286    }
287
288    if(!strcmp(type, "device")) {
289        D("setting connection_state to CS_DEVICE\n");
290        t->connection_state = CS_DEVICE;
291        update_transports();
292        return;
293    }
294
295    if(!strcmp(type, "recovery")) {
296        D("setting connection_state to CS_RECOVERY\n");
297        t->connection_state = CS_RECOVERY;
298        update_transports();
299        return;
300    }
301
302    t->connection_state = CS_HOST;
303}
304
305void handle_packet(apacket *p, atransport *t)
306{
307    asocket *s;
308
309    D("handle_packet() %d\n", p->msg.command);
310
311    print_packet("recv", p);
312
313    switch(p->msg.command){
314    case A_SYNC:
315        if(p->msg.arg0){
316            send_packet(p, t);
317            if(HOST) send_connect(t);
318        } else {
319            t->connection_state = CS_OFFLINE;
320            handle_offline(t);
321            send_packet(p, t);
322        }
323        return;
324
325    case A_CNXN: /* CONNECT(version, maxdata, "system-id-string") */
326            /* XXX verify version, etc */
327        if(t->connection_state != CS_OFFLINE) {
328            t->connection_state = CS_OFFLINE;
329            handle_offline(t);
330        }
331        parse_banner((char*) p->data, t);
332        handle_online();
333        if(!HOST) send_connect(t);
334        break;
335
336    case A_OPEN: /* OPEN(local-id, 0, "destination") */
337        if(t->connection_state != CS_OFFLINE) {
338            char *name = (char*) p->data;
339            name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0;
340            s = create_local_service_socket(name);
341            if(s == 0) {
342                send_close(0, p->msg.arg0, t);
343            } else {
344                s->peer = create_remote_socket(p->msg.arg0, t);
345                s->peer->peer = s;
346                send_ready(s->id, s->peer->id, t);
347                s->ready(s);
348            }
349        }
350        break;
351
352    case A_OKAY: /* READY(local-id, remote-id, "") */
353        if(t->connection_state != CS_OFFLINE) {
354            if((s = find_local_socket(p->msg.arg1))) {
355                if(s->peer == 0) {
356                    s->peer = create_remote_socket(p->msg.arg0, t);
357                    s->peer->peer = s;
358                }
359                s->ready(s);
360            }
361        }
362        break;
363
364    case A_CLSE: /* CLOSE(local-id, remote-id, "") */
365        if(t->connection_state != CS_OFFLINE) {
366            if((s = find_local_socket(p->msg.arg1))) {
367                s->close(s);
368            }
369        }
370        break;
371
372    case A_WRTE:
373        if(t->connection_state != CS_OFFLINE) {
374            if((s = find_local_socket(p->msg.arg1))) {
375                unsigned rid = p->msg.arg0;
376                p->len = p->msg.data_length;
377
378                if(s->enqueue(s, p) == 0) {
379                    D("Enqueue the socket\n");
380                    send_ready(s->id, rid, t);
381                }
382                return;
383            }
384        }
385        break;
386
387    default:
388        printf("handle_packet: what is %08x?!\n", p->msg.command);
389    }
390
391    put_apacket(p);
392}
393
394alistener listener_list = {
395    .next = &listener_list,
396    .prev = &listener_list,
397};
398
399static void ss_listener_event_func(int _fd, unsigned ev, void *_l)
400{
401    asocket *s;
402
403    if(ev & FDE_READ) {
404        struct sockaddr addr;
405        socklen_t alen;
406        int fd;
407
408        alen = sizeof(addr);
409        fd = adb_socket_accept(_fd, &addr, &alen);
410        if(fd < 0) return;
411
412        adb_socket_setbufsize(fd, CHUNK_SIZE);
413
414        s = create_local_socket(fd);
415        if(s) {
416            connect_to_smartsocket(s);
417            return;
418        }
419
420        adb_close(fd);
421    }
422}
423
424static void listener_event_func(int _fd, unsigned ev, void *_l)
425{
426    alistener *l = _l;
427    asocket *s;
428
429    if(ev & FDE_READ) {
430        struct sockaddr addr;
431        socklen_t alen;
432        int fd;
433
434        alen = sizeof(addr);
435        fd = adb_socket_accept(_fd, &addr, &alen);
436        if(fd < 0) return;
437
438        s = create_local_socket(fd);
439        if(s) {
440            s->transport = l->transport;
441            connect_to_remote(s, l->connect_to);
442            return;
443        }
444
445        adb_close(fd);
446    }
447}
448
449static void  free_listener(alistener*  l)
450{
451    if (l->next) {
452        l->next->prev = l->prev;
453        l->prev->next = l->next;
454        l->next = l->prev = l;
455    }
456
457    // closes the corresponding fd
458    fdevent_remove(&l->fde);
459
460    if (l->local_name)
461        free((char*)l->local_name);
462
463    if (l->connect_to)
464        free((char*)l->connect_to);
465
466    if (l->transport) {
467        remove_transport_disconnect(l->transport, &l->disconnect);
468    }
469    free(l);
470}
471
472static void listener_disconnect(void*  _l, atransport*  t)
473{
474    alistener*  l = _l;
475
476    free_listener(l);
477}
478
479int local_name_to_fd(const char *name)
480{
481    int port;
482
483    if(!strncmp("tcp:", name, 4)){
484        int  ret;
485        port = atoi(name + 4);
486        ret = socket_loopback_server(port, SOCK_STREAM);
487        return ret;
488    }
489#ifndef HAVE_WIN32_IPC  /* no Unix-domain sockets on Win32 */
490    // It's non-sensical to support the "reserved" space on the adb host side
491    if(!strncmp(name, "local:", 6)) {
492        return socket_local_server(name + 6,
493                ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
494    } else if(!strncmp(name, "localabstract:", 14)) {
495        return socket_local_server(name + 14,
496                ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
497    } else if(!strncmp(name, "localfilesystem:", 16)) {
498        return socket_local_server(name + 16,
499                ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM);
500    }
501
502#endif
503    printf("unknown local portname '%s'\n", name);
504    return -1;
505}
506
507static int remove_listener(const char *local_name, const char *connect_to, atransport* transport)
508{
509    alistener *l;
510
511    for (l = listener_list.next; l != &listener_list; l = l->next) {
512        if (!strcmp(local_name, l->local_name) &&
513            !strcmp(connect_to, l->connect_to) &&
514            l->transport && l->transport == transport) {
515
516            listener_disconnect(l, transport);
517            return 0;
518        }
519    }
520
521    return -1;
522}
523
524static int install_listener(const char *local_name, const char *connect_to, atransport* transport)
525{
526    alistener *l;
527
528    //printf("install_listener('%s','%s')\n", local_name, connect_to);
529
530    for(l = listener_list.next; l != &listener_list; l = l->next){
531        if(strcmp(local_name, l->local_name) == 0) {
532            char *cto;
533
534                /* can't repurpose a smartsocket */
535            if(l->connect_to[0] == '*') {
536                return -1;
537            }
538
539            cto = strdup(connect_to);
540            if(cto == 0) {
541                return -1;
542            }
543
544            //printf("rebinding '%s' to '%s'\n", local_name, connect_to);
545            free((void*) l->connect_to);
546            l->connect_to = cto;
547            if (l->transport != transport) {
548                remove_transport_disconnect(l->transport, &l->disconnect);
549                l->transport = transport;
550                add_transport_disconnect(l->transport, &l->disconnect);
551            }
552            return 0;
553        }
554    }
555
556    if((l = calloc(1, sizeof(alistener))) == 0) goto nomem;
557    if((l->local_name = strdup(local_name)) == 0) goto nomem;
558    if((l->connect_to = strdup(connect_to)) == 0) goto nomem;
559
560
561    l->fd = local_name_to_fd(local_name);
562    if(l->fd < 0) {
563        free((void*) l->local_name);
564        free((void*) l->connect_to);
565        free(l);
566        printf("cannot bind '%s'\n", local_name);
567        return -2;
568    }
569
570    close_on_exec(l->fd);
571    if(!strcmp(l->connect_to, "*smartsocket*")) {
572        fdevent_install(&l->fde, l->fd, ss_listener_event_func, l);
573    } else {
574        fdevent_install(&l->fde, l->fd, listener_event_func, l);
575    }
576    fdevent_set(&l->fde, FDE_READ);
577
578    l->next = &listener_list;
579    l->prev = listener_list.prev;
580    l->next->prev = l;
581    l->prev->next = l;
582    l->transport = transport;
583
584    if (transport) {
585        l->disconnect.opaque = l;
586        l->disconnect.func   = listener_disconnect;
587        add_transport_disconnect(transport, &l->disconnect);
588    }
589    return 0;
590
591nomem:
592    fatal("cannot allocate listener");
593    return 0;
594}
595
596#ifdef HAVE_FORKEXEC
597static void sigchld_handler(int n)
598{
599    int status;
600    while(waitpid(-1, &status, WNOHANG) > 0) ;
601}
602#endif
603
604#ifdef HAVE_WIN32_PROC
605static BOOL WINAPI ctrlc_handler(DWORD type)
606{
607    exit(STATUS_CONTROL_C_EXIT);
608    return TRUE;
609}
610#endif
611
612static void adb_cleanup(void)
613{
614    usb_cleanup();
615}
616
617void start_logging(void)
618{
619#ifdef HAVE_WIN32_PROC
620    char    temp[ MAX_PATH ];
621    FILE*   fnul;
622    FILE*   flog;
623
624    GetTempPath( sizeof(temp) - 8, temp );
625    strcat( temp, "adb.log" );
626
627    /* Win32 specific redirections */
628    fnul = fopen( "NUL", "rt" );
629    if (fnul != NULL)
630        stdin[0] = fnul[0];
631
632    flog = fopen( temp, "at" );
633    if (flog == NULL)
634        flog = fnul;
635
636    setvbuf( flog, NULL, _IONBF, 0 );
637
638    stdout[0] = flog[0];
639    stderr[0] = flog[0];
640    fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
641#else
642    int fd;
643
644    fd = unix_open("/dev/null", O_RDONLY);
645    dup2(fd, 0);
646
647    fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640);
648    if(fd < 0) {
649        fd = unix_open("/dev/null", O_WRONLY);
650    }
651    dup2(fd, 1);
652    dup2(fd, 2);
653    fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
654#endif
655}
656
657#if !ADB_HOST
658void start_device_log(void)
659{
660    int fd;
661    char    path[PATH_MAX];
662    struct tm now;
663    time_t t;
664    char value[PROPERTY_VALUE_MAX];
665
666    // read the trace mask from persistent property persist.adb.trace_mask
667    // give up if the property is not set or cannot be parsed
668    property_get("persist.adb.trace_mask", value, "");
669    if (sscanf(value, "%x", &adb_trace_mask) != 1)
670        return;
671
672    adb_mkdir("/data/adb", 0775);
673    tzset();
674    time(&t);
675    localtime_r(&t, &now);
676    strftime(path, sizeof(path),
677                "/data/adb/adb-%Y-%m-%d-%H-%M-%S.txt",
678                &now);
679    fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640);
680    if (fd < 0)
681        return;
682
683    // redirect stdout and stderr to the log file
684    dup2(fd, 1);
685    dup2(fd, 2);
686    fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
687
688    fd = unix_open("/dev/null", O_RDONLY);
689    dup2(fd, 0);
690}
691#endif
692
693#if ADB_HOST
694int launch_server()
695{
696#ifdef HAVE_WIN32_PROC
697    /* we need to start the server in the background                    */
698    /* we create a PIPE that will be used to wait for the server's "OK" */
699    /* message since the pipe handles must be inheritable, we use a     */
700    /* security attribute                                               */
701    HANDLE                pipe_read, pipe_write;
702    SECURITY_ATTRIBUTES   sa;
703    STARTUPINFO           startup;
704    PROCESS_INFORMATION   pinfo;
705    char                  program_path[ MAX_PATH ];
706    int                   ret;
707
708    sa.nLength = sizeof(sa);
709    sa.lpSecurityDescriptor = NULL;
710    sa.bInheritHandle = TRUE;
711
712    /* create pipe, and ensure its read handle isn't inheritable */
713    ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 );
714    if (!ret) {
715        fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() );
716        return -1;
717    }
718
719    SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 );
720
721    ZeroMemory( &startup, sizeof(startup) );
722    startup.cb = sizeof(startup);
723    startup.hStdInput  = GetStdHandle( STD_INPUT_HANDLE );
724    startup.hStdOutput = pipe_write;
725    startup.hStdError  = GetStdHandle( STD_ERROR_HANDLE );
726    startup.dwFlags    = STARTF_USESTDHANDLES;
727
728    ZeroMemory( &pinfo, sizeof(pinfo) );
729
730    /* get path of current program */
731    GetModuleFileName( NULL, program_path, sizeof(program_path) );
732
733    ret = CreateProcess(
734            program_path,                              /* program path  */
735            "adb fork-server server",
736                                    /* the fork-server argument will set the
737                                       debug = 2 in the child           */
738            NULL,                   /* process handle is not inheritable */
739            NULL,                    /* thread handle is not inheritable */
740            TRUE,                          /* yes, inherit some handles */
741            DETACHED_PROCESS, /* the new process doesn't have a console */
742            NULL,                     /* use parent's environment block */
743            NULL,                    /* use parent's starting directory */
744            &startup,                 /* startup info, i.e. std handles */
745            &pinfo );
746
747    CloseHandle( pipe_write );
748
749    if (!ret) {
750        fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() );
751        CloseHandle( pipe_read );
752        return -1;
753    }
754
755    CloseHandle( pinfo.hProcess );
756    CloseHandle( pinfo.hThread );
757
758    /* wait for the "OK\n" message */
759    {
760        char  temp[3];
761        DWORD  count;
762
763        ret = ReadFile( pipe_read, temp, 3, &count, NULL );
764        CloseHandle( pipe_read );
765        if ( !ret ) {
766            fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() );
767            return -1;
768        }
769        if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') {
770            fprintf(stderr, "ADB server didn't ACK\n" );
771            return -1;
772        }
773    }
774#elif defined(HAVE_FORKEXEC)
775    char    path[PATH_MAX];
776    int     fd[2];
777
778    // set up a pipe so the child can tell us when it is ready.
779    // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child.
780    if (pipe(fd)) {
781        fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno);
782        return -1;
783    }
784    get_my_path(path);
785    pid_t pid = fork();
786    if(pid < 0) return -1;
787
788    if (pid == 0) {
789        // child side of the fork
790
791        // redirect stderr to the pipe
792        // we use stderr instead of stdout due to stdout's buffering behavior.
793        adb_close(fd[0]);
794        dup2(fd[1], STDERR_FILENO);
795        adb_close(fd[1]);
796
797        // child process
798        int result = execl(path, "adb", "fork-server", "server", NULL);
799        // this should not return
800        fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno);
801    } else  {
802        // parent side of the fork
803
804        char  temp[3];
805
806        temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C';
807        // wait for the "OK\n" message
808        adb_close(fd[1]);
809        int ret = adb_read(fd[0], temp, 3);
810        adb_close(fd[0]);
811        if (ret < 0) {
812            fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", errno);
813            return -1;
814        }
815        if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') {
816            fprintf(stderr, "ADB server didn't ACK\n" );
817            return -1;
818        }
819
820        setsid();
821    }
822#else
823#error "cannot implement background server start on this platform"
824#endif
825    return 0;
826}
827#endif
828
829int adb_main(int is_daemon)
830{
831#if !ADB_HOST
832    int secure = 0;
833    char value[PROPERTY_VALUE_MAX];
834#endif
835
836    atexit(adb_cleanup);
837#ifdef HAVE_WIN32_PROC
838    SetConsoleCtrlHandler( ctrlc_handler, TRUE );
839#elif defined(HAVE_FORKEXEC)
840    signal(SIGCHLD, sigchld_handler);
841    signal(SIGPIPE, SIG_IGN);
842#endif
843
844    init_transport_registration();
845
846
847#if ADB_HOST
848    HOST = 1;
849    usb_vendors_init();
850    usb_init();
851    local_init();
852
853    if(install_listener("tcp:5037", "*smartsocket*", NULL)) {
854        exit(1);
855    }
856#else
857    /* run adbd in secure mode if ro.secure is set and
858    ** we are not in the emulator
859    */
860    property_get("ro.kernel.qemu", value, "");
861    if (strcmp(value, "1") != 0) {
862        property_get("ro.secure", value, "");
863        if (strcmp(value, "1") == 0) {
864            // don't run as root if ro.secure is set...
865            secure = 1;
866
867            // ... except we allow running as root in userdebug builds if the
868            // service.adb.root property has been set by the "adb root" command
869            property_get("ro.debuggable", value, "");
870            if (strcmp(value, "1") == 0) {
871                property_get("service.adb.root", value, "");
872                if (strcmp(value, "1") == 0) {
873                    secure = 0;
874                }
875            }
876        }
877    }
878
879    /* don't listen on port 5037 if we are running in secure mode */
880    /* don't run as root if we are running in secure mode */
881    if (secure) {
882        /* add extra groups:
883        ** AID_ADB to access the USB driver
884        ** AID_LOG to read system logs (adb logcat)
885        ** AID_INPUT to diagnose input issues (getevent)
886        ** AID_INET to diagnose network issues (netcfg, ping)
887        ** AID_GRAPHICS to access the frame buffer
888        ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump)
889        ** AID_SDCARD_RW to allow writing to the SD card
890        */
891        gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS,
892                           AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_RW };
893        setgroups(sizeof(groups)/sizeof(groups[0]), groups);
894
895        /* then switch user and group to "shell" */
896        setgid(AID_SHELL);
897        setuid(AID_SHELL);
898
899        D("Local port 5037 disabled\n");
900    } else {
901        if(install_listener("tcp:5037", "*smartsocket*", NULL)) {
902            exit(1);
903        }
904    }
905
906        /* for the device, start the usb transport if the
907        ** android usb device exists, otherwise start the
908        ** network transport.
909        */
910    if(access("/dev/android_adb", F_OK) == 0 ||
911       access("/dev/android", F_OK) == 0) {
912        usb_init();
913    } else {
914        local_init();
915    }
916    init_jdwp();
917#endif
918
919    if (is_daemon)
920    {
921        // inform our parent that we are up and running.
922#ifdef HAVE_WIN32_PROC
923        DWORD  count;
924        WriteFile( GetStdHandle( STD_OUTPUT_HANDLE ), "OK\n", 3, &count, NULL );
925#elif defined(HAVE_FORKEXEC)
926        fprintf(stderr, "OK\n");
927#endif
928        start_logging();
929    }
930
931    fdevent_loop();
932
933    usb_cleanup();
934
935    return 0;
936}
937
938int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s)
939{
940    atransport *transport = NULL;
941    char buf[4096];
942
943    if(!strcmp(service, "kill")) {
944        fprintf(stderr,"adb server killed by remote request\n");
945        fflush(stdout);
946        adb_write(reply_fd, "OKAY", 4);
947        usb_cleanup();
948        exit(0);
949    }
950
951#if ADB_HOST
952    // "transport:" is used for switching transport with a specified serial number
953    // "transport-usb:" is used for switching transport to the only USB transport
954    // "transport-local:" is used for switching transport to the only local transport
955    // "transport-any:" is used for switching transport to the only transport
956    if (!strncmp(service, "transport", strlen("transport"))) {
957        char* error_string = "unknown failure";
958        transport_type type = kTransportAny;
959
960        if (!strncmp(service, "transport-usb", strlen("transport-usb"))) {
961            type = kTransportUsb;
962        } else if (!strncmp(service, "transport-local", strlen("transport-local"))) {
963            type = kTransportLocal;
964        } else if (!strncmp(service, "transport-any", strlen("transport-any"))) {
965            type = kTransportAny;
966        } else if (!strncmp(service, "transport:", strlen("transport:"))) {
967            service += strlen("transport:");
968            serial = strdup(service);
969        }
970
971        transport = acquire_one_transport(CS_ANY, type, serial, &error_string);
972
973        if (transport) {
974            s->transport = transport;
975            adb_write(reply_fd, "OKAY", 4);
976        } else {
977            sendfailmsg(reply_fd, error_string);
978        }
979        return 1;
980    }
981
982    // return a list of all connected devices
983    if (!strcmp(service, "devices")) {
984        char buffer[4096];
985        memset(buf, 0, sizeof(buf));
986        memset(buffer, 0, sizeof(buffer));
987        D("Getting device list \n");
988        list_transports(buffer, sizeof(buffer));
989        snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer);
990        D("Wrote device list \n");
991        writex(reply_fd, buf, strlen(buf));
992        return 0;
993    }
994
995    // returns our value for ADB_SERVER_VERSION
996    if (!strcmp(service, "version")) {
997        char version[12];
998        snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION);
999        snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version);
1000        writex(reply_fd, buf, strlen(buf));
1001        return 0;
1002    }
1003
1004    if(!strncmp(service,"get-serialno",strlen("get-serialno"))) {
1005        char *out = "unknown";
1006         transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
1007       if (transport && transport->serial) {
1008            out = transport->serial;
1009        }
1010        snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out);
1011        writex(reply_fd, buf, strlen(buf));
1012        return 0;
1013    }
1014    // indicates a new emulator instance has started
1015    if (!strncmp(service,"emulator:",9)) {
1016        int  port = atoi(service+9);
1017        local_connect(port);
1018        /* we don't even need to send a reply */
1019        return 0;
1020    }
1021#endif // ADB_HOST
1022
1023    if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) {
1024        char *local, *remote, *err;
1025        int r;
1026        atransport *transport;
1027
1028        int createForward = strncmp(service,"kill",4);
1029
1030        local = service + (createForward ? 8 : 12);
1031        remote = strchr(local,';');
1032        if(remote == 0) {
1033            sendfailmsg(reply_fd, "malformed forward spec");
1034            return 0;
1035        }
1036
1037        *remote++ = 0;
1038        if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){
1039            sendfailmsg(reply_fd, "malformed forward spec");
1040            return 0;
1041        }
1042
1043        transport = acquire_one_transport(CS_ANY, ttype, serial, &err);
1044        if (!transport) {
1045            sendfailmsg(reply_fd, err);
1046            return 0;
1047        }
1048
1049        if (createForward) {
1050            r = install_listener(local, remote, transport);
1051        } else {
1052            r = remove_listener(local, remote, transport);
1053        }
1054        if(r == 0) {
1055                /* 1st OKAY is connect, 2nd OKAY is status */
1056            writex(reply_fd, "OKAYOKAY", 8);
1057            return 0;
1058        }
1059
1060        if (createForward) {
1061            sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket");
1062        } else {
1063            sendfailmsg(reply_fd, "cannot remove listener");
1064        }
1065        return 0;
1066    }
1067
1068    if(!strncmp(service,"get-state",strlen("get-state"))) {
1069        transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
1070        char *state = connection_state_name(transport);
1071        snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state);
1072        writex(reply_fd, buf, strlen(buf));
1073        return 0;
1074    }
1075    return -1;
1076}
1077
1078#if !ADB_HOST
1079int recovery_mode = 0;
1080#endif
1081
1082int main(int argc, char **argv)
1083{
1084    adb_trace_init();
1085#if ADB_HOST
1086    adb_sysdeps_init();
1087    return adb_commandline(argc - 1, argv + 1);
1088#else
1089    if((argc > 1) && (!strcmp(argv[1],"recovery"))) {
1090        adb_device_banner = "recovery";
1091        recovery_mode = 1;
1092    }
1093
1094    start_device_log();
1095    return adb_main(0);
1096#endif
1097}
1098