adb.c revision e82c2db05cae70a0490a1f84b7211ef42c329671
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 <stddef.h> 25#include <string.h> 26#include <time.h> 27#include <sys/time.h> 28 29#include "sysdeps.h" 30#include "adb.h" 31 32#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 33 34#if !ADB_HOST 35#include <private/android_filesystem_config.h> 36#include <linux/capability.h> 37#include <linux/prctl.h> 38#else 39#include "usb_vendors.h" 40#endif 41 42#if ADB_TRACE 43ADB_MUTEX_DEFINE( D_lock ); 44#endif 45 46int HOST = 0; 47 48#if !ADB_HOST 49static const char *adb_device_banner = "device"; 50#endif 51 52void fatal(const char *fmt, ...) 53{ 54 va_list ap; 55 va_start(ap, fmt); 56 fprintf(stderr, "error: "); 57 vfprintf(stderr, fmt, ap); 58 fprintf(stderr, "\n"); 59 va_end(ap); 60 exit(-1); 61} 62 63void fatal_errno(const char *fmt, ...) 64{ 65 va_list ap; 66 va_start(ap, fmt); 67 fprintf(stderr, "error: %s: ", strerror(errno)); 68 vfprintf(stderr, fmt, ap); 69 fprintf(stderr, "\n"); 70 va_end(ap); 71 exit(-1); 72} 73 74int adb_trace_mask; 75 76/* read a comma/space/colum/semi-column separated list of tags 77 * from the ADB_TRACE environment variable and build the trace 78 * mask from it. note that '1' and 'all' are special cases to 79 * enable all tracing 80 */ 81void adb_trace_init(void) 82{ 83 const char* p = getenv("ADB_TRACE"); 84 const char* q; 85 86 static const struct { 87 const char* tag; 88 int flag; 89 } tags[] = { 90 { "1", 0 }, 91 { "all", 0 }, 92 { "adb", TRACE_ADB }, 93 { "sockets", TRACE_SOCKETS }, 94 { "packets", TRACE_PACKETS }, 95 { "rwx", TRACE_RWX }, 96 { "usb", TRACE_USB }, 97 { "sync", TRACE_SYNC }, 98 { "sysdeps", TRACE_SYSDEPS }, 99 { "transport", TRACE_TRANSPORT }, 100 { "jdwp", TRACE_JDWP }, 101 { "services", TRACE_SERVICES }, 102 { NULL, 0 } 103 }; 104 105 if (p == NULL) 106 return; 107 108 /* use a comma/column/semi-colum/space separated list */ 109 while (*p) { 110 int len, tagn; 111 112 q = strpbrk(p, " ,:;"); 113 if (q == NULL) { 114 q = p + strlen(p); 115 } 116 len = q - p; 117 118 for (tagn = 0; tags[tagn].tag != NULL; tagn++) 119 { 120 int taglen = strlen(tags[tagn].tag); 121 122 if (len == taglen && !memcmp(tags[tagn].tag, p, len) ) 123 { 124 int flag = tags[tagn].flag; 125 if (flag == 0) { 126 adb_trace_mask = ~0; 127 return; 128 } 129 adb_trace_mask |= (1 << flag); 130 break; 131 } 132 } 133 p = q; 134 if (*p) 135 p++; 136 } 137} 138 139 140apacket *get_apacket(void) 141{ 142 apacket *p = malloc(sizeof(apacket)); 143 if(p == 0) fatal("failed to allocate an apacket"); 144 memset(p, 0, sizeof(apacket) - MAX_PAYLOAD); 145 return p; 146} 147 148void put_apacket(apacket *p) 149{ 150 free(p); 151} 152 153void handle_online(void) 154{ 155 D("adb: online\n"); 156} 157 158void handle_offline(atransport *t) 159{ 160 D("adb: offline\n"); 161 //Close the associated usb 162 run_transport_disconnects(t); 163} 164 165#if TRACE_PACKETS 166#define DUMPMAX 32 167void print_packet(const char *label, apacket *p) 168{ 169 char *tag; 170 char *x; 171 unsigned count; 172 173 switch(p->msg.command){ 174 case A_SYNC: tag = "SYNC"; break; 175 case A_CNXN: tag = "CNXN" ; break; 176 case A_OPEN: tag = "OPEN"; break; 177 case A_OKAY: tag = "OKAY"; break; 178 case A_CLSE: tag = "CLSE"; break; 179 case A_WRTE: tag = "WRTE"; break; 180 default: tag = "????"; break; 181 } 182 183 fprintf(stderr, "%s: %s %08x %08x %04x \"", 184 label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length); 185 count = p->msg.data_length; 186 x = (char*) p->data; 187 if(count > DUMPMAX) { 188 count = DUMPMAX; 189 tag = "\n"; 190 } else { 191 tag = "\"\n"; 192 } 193 while(count-- > 0){ 194 if((*x >= ' ') && (*x < 127)) { 195 fputc(*x, stderr); 196 } else { 197 fputc('.', stderr); 198 } 199 x++; 200 } 201 fprintf(stderr, tag); 202} 203#endif 204 205static void send_ready(unsigned local, unsigned remote, atransport *t) 206{ 207 D("Calling send_ready \n"); 208 apacket *p = get_apacket(); 209 p->msg.command = A_OKAY; 210 p->msg.arg0 = local; 211 p->msg.arg1 = remote; 212 send_packet(p, t); 213} 214 215static void send_close(unsigned local, unsigned remote, atransport *t) 216{ 217 D("Calling send_close \n"); 218 apacket *p = get_apacket(); 219 p->msg.command = A_CLSE; 220 p->msg.arg0 = local; 221 p->msg.arg1 = remote; 222 send_packet(p, t); 223} 224 225static size_t fill_connect_data(char *buf, size_t bufsize) 226{ 227#if ADB_HOST 228 return snprintf(buf, bufsize, "host::") + 1; 229#else 230 static const char *cnxn_props[] = { 231 "ro.product.name", 232 "ro.product.model", 233 "ro.product.device", 234 }; 235 static const int num_cnxn_props = ARRAY_SIZE(cnxn_props); 236 int i; 237 size_t remaining = bufsize; 238 size_t len; 239 240 len = snprintf(buf, remaining, "%s::", adb_device_banner); 241 remaining -= len; 242 buf += len; 243 for (i = 0; i < num_cnxn_props; i++) { 244 char value[PROPERTY_VALUE_MAX]; 245 property_get(cnxn_props[i], value, ""); 246 len = snprintf(buf, remaining, "%s=%s;", cnxn_props[i], value); 247 remaining -= len; 248 buf += len; 249 } 250 251 return bufsize - remaining + 1; 252#endif 253} 254 255static void send_connect(atransport *t) 256{ 257 D("Calling send_connect \n"); 258 apacket *cp = get_apacket(); 259 cp->msg.command = A_CNXN; 260 cp->msg.arg0 = A_VERSION; 261 cp->msg.arg1 = MAX_PAYLOAD; 262 cp->msg.data_length = fill_connect_data((char *)cp->data, 263 sizeof(cp->data)); 264 send_packet(cp, t); 265#if ADB_HOST 266 /* XXX why sleep here? */ 267 // allow the device some time to respond to the connect message 268 adb_sleep_ms(1000); 269#endif 270} 271 272static char *connection_state_name(atransport *t) 273{ 274 if (t == NULL) { 275 return "unknown"; 276 } 277 278 switch(t->connection_state) { 279 case CS_BOOTLOADER: 280 return "bootloader"; 281 case CS_DEVICE: 282 return "device"; 283 case CS_OFFLINE: 284 return "offline"; 285 default: 286 return "unknown"; 287 } 288} 289 290/* qual_overwrite is used to overwrite a qualifier string. dst is a 291 * pointer to a char pointer. It is assumed that if *dst is non-NULL, it 292 * was malloc'ed and needs to freed. A char buffer will be malloc'ed and 293 * filled with src and *dst will be set to 294 * point to the buffer. 295 */ 296static void qual_overwrite(char **dst, const char *src) 297{ 298 if (!dst) 299 return; 300 301 free(*dst); 302 *dst = NULL; 303 304 if (!src || !*src) 305 return; 306 307 *dst = strdup(src); 308} 309 310void parse_banner(char *banner, atransport *t) 311{ 312 static const char *prop_seps = ";"; 313 static const char key_val_sep = '='; 314 char *cp, *type; 315 316 D("parse_banner: %s\n", banner); 317 type = banner; 318 cp = strchr(type, ':'); 319 if (cp) { 320 *cp++ = 0; 321 /* Nothing is done with second field. */ 322 cp = strchr(cp, ':'); 323 if (cp) { 324 char *save; 325 char *key; 326 key = strtok_r(cp + 1, prop_seps, &save); 327 while (key) { 328 cp = strchr(key, key_val_sep); 329 if (cp) { 330 *cp++ = '\0'; 331 if (!strcmp(key, "ro.product.name")) 332 qual_overwrite(&t->product, cp); 333 else if (!strcmp(key, "ro.product.model")) 334 qual_overwrite(&t->model, cp); 335 else if (!strcmp(key, "ro.product.device")) 336 qual_overwrite(&t->device, cp); 337 } 338 key = strtok_r(NULL, prop_seps, &save); 339 } 340 } 341 } 342 343 if(!strcmp(type, "bootloader")){ 344 D("setting connection_state to CS_BOOTLOADER\n"); 345 t->connection_state = CS_BOOTLOADER; 346 update_transports(); 347 return; 348 } 349 350 if(!strcmp(type, "device")) { 351 D("setting connection_state to CS_DEVICE\n"); 352 t->connection_state = CS_DEVICE; 353 update_transports(); 354 return; 355 } 356 357 if(!strcmp(type, "recovery")) { 358 D("setting connection_state to CS_RECOVERY\n"); 359 t->connection_state = CS_RECOVERY; 360 update_transports(); 361 return; 362 } 363 364 t->connection_state = CS_HOST; 365} 366 367void handle_packet(apacket *p, atransport *t) 368{ 369 asocket *s; 370 371 D("handle_packet() %c%c%c%c\n", ((char*) (&(p->msg.command)))[0], 372 ((char*) (&(p->msg.command)))[1], 373 ((char*) (&(p->msg.command)))[2], 374 ((char*) (&(p->msg.command)))[3]); 375 print_packet("recv", p); 376 377 switch(p->msg.command){ 378 case A_SYNC: 379 if(p->msg.arg0){ 380 send_packet(p, t); 381 if(HOST) send_connect(t); 382 } else { 383 t->connection_state = CS_OFFLINE; 384 handle_offline(t); 385 send_packet(p, t); 386 } 387 return; 388 389 case A_CNXN: /* CONNECT(version, maxdata, "system-id-string") */ 390 /* XXX verify version, etc */ 391 if(t->connection_state != CS_OFFLINE) { 392 t->connection_state = CS_OFFLINE; 393 handle_offline(t); 394 } 395 parse_banner((char*) p->data, t); 396 handle_online(); 397 if(!HOST) send_connect(t); 398 break; 399 400 case A_OPEN: /* OPEN(local-id, 0, "destination") */ 401 if(t->connection_state != CS_OFFLINE) { 402 char *name = (char*) p->data; 403 name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0; 404 s = create_local_service_socket(name); 405 if(s == 0) { 406 send_close(0, p->msg.arg0, t); 407 } else { 408 s->peer = create_remote_socket(p->msg.arg0, t); 409 s->peer->peer = s; 410 send_ready(s->id, s->peer->id, t); 411 s->ready(s); 412 } 413 } 414 break; 415 416 case A_OKAY: /* READY(local-id, remote-id, "") */ 417 if(t->connection_state != CS_OFFLINE) { 418 if((s = find_local_socket(p->msg.arg1))) { 419 if(s->peer == 0) { 420 s->peer = create_remote_socket(p->msg.arg0, t); 421 s->peer->peer = s; 422 } 423 s->ready(s); 424 } 425 } 426 break; 427 428 case A_CLSE: /* CLOSE(local-id, remote-id, "") */ 429 if(t->connection_state != CS_OFFLINE) { 430 if((s = find_local_socket(p->msg.arg1))) { 431 s->close(s); 432 } 433 } 434 break; 435 436 case A_WRTE: 437 if(t->connection_state != CS_OFFLINE) { 438 if((s = find_local_socket(p->msg.arg1))) { 439 unsigned rid = p->msg.arg0; 440 p->len = p->msg.data_length; 441 442 if(s->enqueue(s, p) == 0) { 443 D("Enqueue the socket\n"); 444 send_ready(s->id, rid, t); 445 } 446 return; 447 } 448 } 449 break; 450 451 default: 452 printf("handle_packet: what is %08x?!\n", p->msg.command); 453 } 454 455 put_apacket(p); 456} 457 458alistener listener_list = { 459 .next = &listener_list, 460 .prev = &listener_list, 461}; 462 463static void ss_listener_event_func(int _fd, unsigned ev, void *_l) 464{ 465 asocket *s; 466 467 if(ev & FDE_READ) { 468 struct sockaddr addr; 469 socklen_t alen; 470 int fd; 471 472 alen = sizeof(addr); 473 fd = adb_socket_accept(_fd, &addr, &alen); 474 if(fd < 0) return; 475 476 adb_socket_setbufsize(fd, CHUNK_SIZE); 477 478 s = create_local_socket(fd); 479 if(s) { 480 connect_to_smartsocket(s); 481 return; 482 } 483 484 adb_close(fd); 485 } 486} 487 488static void listener_event_func(int _fd, unsigned ev, void *_l) 489{ 490 alistener *l = _l; 491 asocket *s; 492 493 if(ev & FDE_READ) { 494 struct sockaddr addr; 495 socklen_t alen; 496 int fd; 497 498 alen = sizeof(addr); 499 fd = adb_socket_accept(_fd, &addr, &alen); 500 if(fd < 0) return; 501 502 s = create_local_socket(fd); 503 if(s) { 504 s->transport = l->transport; 505 connect_to_remote(s, l->connect_to); 506 return; 507 } 508 509 adb_close(fd); 510 } 511} 512 513static void free_listener(alistener* l) 514{ 515 if (l->next) { 516 l->next->prev = l->prev; 517 l->prev->next = l->next; 518 l->next = l->prev = l; 519 } 520 521 // closes the corresponding fd 522 fdevent_remove(&l->fde); 523 524 if (l->local_name) 525 free((char*)l->local_name); 526 527 if (l->connect_to) 528 free((char*)l->connect_to); 529 530 if (l->transport) { 531 remove_transport_disconnect(l->transport, &l->disconnect); 532 } 533 free(l); 534} 535 536static void listener_disconnect(void* _l, atransport* t) 537{ 538 alistener* l = _l; 539 540 free_listener(l); 541} 542 543int local_name_to_fd(const char *name) 544{ 545 int port; 546 547 if(!strncmp("tcp:", name, 4)){ 548 int ret; 549 port = atoi(name + 4); 550 ret = socket_loopback_server(port, SOCK_STREAM); 551 return ret; 552 } 553#ifndef HAVE_WIN32_IPC /* no Unix-domain sockets on Win32 */ 554 // It's non-sensical to support the "reserved" space on the adb host side 555 if(!strncmp(name, "local:", 6)) { 556 return socket_local_server(name + 6, 557 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 558 } else if(!strncmp(name, "localabstract:", 14)) { 559 return socket_local_server(name + 14, 560 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 561 } else if(!strncmp(name, "localfilesystem:", 16)) { 562 return socket_local_server(name + 16, 563 ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM); 564 } 565 566#endif 567 printf("unknown local portname '%s'\n", name); 568 return -1; 569} 570 571static int remove_listener(const char *local_name, const char *connect_to, atransport* transport) 572{ 573 alistener *l; 574 575 for (l = listener_list.next; l != &listener_list; l = l->next) { 576 if (!strcmp(local_name, l->local_name) && 577 !strcmp(connect_to, l->connect_to) && 578 l->transport && l->transport == transport) { 579 580 listener_disconnect(l, transport); 581 return 0; 582 } 583 } 584 585 return -1; 586} 587 588static int install_listener(const char *local_name, const char *connect_to, atransport* transport) 589{ 590 alistener *l; 591 592 //printf("install_listener('%s','%s')\n", local_name, connect_to); 593 594 for(l = listener_list.next; l != &listener_list; l = l->next){ 595 if(strcmp(local_name, l->local_name) == 0) { 596 char *cto; 597 598 /* can't repurpose a smartsocket */ 599 if(l->connect_to[0] == '*') { 600 return -1; 601 } 602 603 cto = strdup(connect_to); 604 if(cto == 0) { 605 return -1; 606 } 607 608 //printf("rebinding '%s' to '%s'\n", local_name, connect_to); 609 free((void*) l->connect_to); 610 l->connect_to = cto; 611 if (l->transport != transport) { 612 remove_transport_disconnect(l->transport, &l->disconnect); 613 l->transport = transport; 614 add_transport_disconnect(l->transport, &l->disconnect); 615 } 616 return 0; 617 } 618 } 619 620 if((l = calloc(1, sizeof(alistener))) == 0) goto nomem; 621 if((l->local_name = strdup(local_name)) == 0) goto nomem; 622 if((l->connect_to = strdup(connect_to)) == 0) goto nomem; 623 624 625 l->fd = local_name_to_fd(local_name); 626 if(l->fd < 0) { 627 free((void*) l->local_name); 628 free((void*) l->connect_to); 629 free(l); 630 printf("cannot bind '%s'\n", local_name); 631 return -2; 632 } 633 634 close_on_exec(l->fd); 635 if(!strcmp(l->connect_to, "*smartsocket*")) { 636 fdevent_install(&l->fde, l->fd, ss_listener_event_func, l); 637 } else { 638 fdevent_install(&l->fde, l->fd, listener_event_func, l); 639 } 640 fdevent_set(&l->fde, FDE_READ); 641 642 l->next = &listener_list; 643 l->prev = listener_list.prev; 644 l->next->prev = l; 645 l->prev->next = l; 646 l->transport = transport; 647 648 if (transport) { 649 l->disconnect.opaque = l; 650 l->disconnect.func = listener_disconnect; 651 add_transport_disconnect(transport, &l->disconnect); 652 } 653 return 0; 654 655nomem: 656 fatal("cannot allocate listener"); 657 return 0; 658} 659 660#ifdef HAVE_WIN32_PROC 661static BOOL WINAPI ctrlc_handler(DWORD type) 662{ 663 exit(STATUS_CONTROL_C_EXIT); 664 return TRUE; 665} 666#endif 667 668static void adb_cleanup(void) 669{ 670 usb_cleanup(); 671} 672 673void start_logging(void) 674{ 675#ifdef HAVE_WIN32_PROC 676 char temp[ MAX_PATH ]; 677 FILE* fnul; 678 FILE* flog; 679 680 GetTempPath( sizeof(temp) - 8, temp ); 681 strcat( temp, "adb.log" ); 682 683 /* Win32 specific redirections */ 684 fnul = fopen( "NUL", "rt" ); 685 if (fnul != NULL) 686 stdin[0] = fnul[0]; 687 688 flog = fopen( temp, "at" ); 689 if (flog == NULL) 690 flog = fnul; 691 692 setvbuf( flog, NULL, _IONBF, 0 ); 693 694 stdout[0] = flog[0]; 695 stderr[0] = flog[0]; 696 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 697#else 698 int fd; 699 700 fd = unix_open("/dev/null", O_RDONLY); 701 dup2(fd, 0); 702 adb_close(fd); 703 704 fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640); 705 if(fd < 0) { 706 fd = unix_open("/dev/null", O_WRONLY); 707 } 708 dup2(fd, 1); 709 dup2(fd, 2); 710 adb_close(fd); 711 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 712#endif 713} 714 715#if !ADB_HOST 716void start_device_log(void) 717{ 718 int fd; 719 char path[PATH_MAX]; 720 struct tm now; 721 time_t t; 722 char value[PROPERTY_VALUE_MAX]; 723 724 // read the trace mask from persistent property persist.adb.trace_mask 725 // give up if the property is not set or cannot be parsed 726 property_get("persist.adb.trace_mask", value, ""); 727 if (sscanf(value, "%x", &adb_trace_mask) != 1) 728 return; 729 730 adb_mkdir("/data/adb", 0775); 731 tzset(); 732 time(&t); 733 localtime_r(&t, &now); 734 strftime(path, sizeof(path), 735 "/data/adb/adb-%Y-%m-%d-%H-%M-%S.txt", 736 &now); 737 fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640); 738 if (fd < 0) 739 return; 740 741 // redirect stdout and stderr to the log file 742 dup2(fd, 1); 743 dup2(fd, 2); 744 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 745 adb_close(fd); 746 747 fd = unix_open("/dev/null", O_RDONLY); 748 dup2(fd, 0); 749 adb_close(fd); 750} 751#endif 752 753#if ADB_HOST 754int launch_server(int server_port) 755{ 756#ifdef HAVE_WIN32_PROC 757 /* we need to start the server in the background */ 758 /* we create a PIPE that will be used to wait for the server's "OK" */ 759 /* message since the pipe handles must be inheritable, we use a */ 760 /* security attribute */ 761 HANDLE pipe_read, pipe_write; 762 SECURITY_ATTRIBUTES sa; 763 STARTUPINFO startup; 764 PROCESS_INFORMATION pinfo; 765 char program_path[ MAX_PATH ]; 766 int ret; 767 768 sa.nLength = sizeof(sa); 769 sa.lpSecurityDescriptor = NULL; 770 sa.bInheritHandle = TRUE; 771 772 /* create pipe, and ensure its read handle isn't inheritable */ 773 ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 ); 774 if (!ret) { 775 fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() ); 776 return -1; 777 } 778 779 SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 ); 780 781 ZeroMemory( &startup, sizeof(startup) ); 782 startup.cb = sizeof(startup); 783 startup.hStdInput = GetStdHandle( STD_INPUT_HANDLE ); 784 startup.hStdOutput = pipe_write; 785 startup.hStdError = GetStdHandle( STD_ERROR_HANDLE ); 786 startup.dwFlags = STARTF_USESTDHANDLES; 787 788 ZeroMemory( &pinfo, sizeof(pinfo) ); 789 790 /* get path of current program */ 791 GetModuleFileName( NULL, program_path, sizeof(program_path) ); 792 793 ret = CreateProcess( 794 program_path, /* program path */ 795 "adb fork-server server", 796 /* the fork-server argument will set the 797 debug = 2 in the child */ 798 NULL, /* process handle is not inheritable */ 799 NULL, /* thread handle is not inheritable */ 800 TRUE, /* yes, inherit some handles */ 801 DETACHED_PROCESS, /* the new process doesn't have a console */ 802 NULL, /* use parent's environment block */ 803 NULL, /* use parent's starting directory */ 804 &startup, /* startup info, i.e. std handles */ 805 &pinfo ); 806 807 CloseHandle( pipe_write ); 808 809 if (!ret) { 810 fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() ); 811 CloseHandle( pipe_read ); 812 return -1; 813 } 814 815 CloseHandle( pinfo.hProcess ); 816 CloseHandle( pinfo.hThread ); 817 818 /* wait for the "OK\n" message */ 819 { 820 char temp[3]; 821 DWORD count; 822 823 ret = ReadFile( pipe_read, temp, 3, &count, NULL ); 824 CloseHandle( pipe_read ); 825 if ( !ret ) { 826 fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() ); 827 return -1; 828 } 829 if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 830 fprintf(stderr, "ADB server didn't ACK\n" ); 831 return -1; 832 } 833 } 834#elif defined(HAVE_FORKEXEC) 835 char path[PATH_MAX]; 836 int fd[2]; 837 838 // set up a pipe so the child can tell us when it is ready. 839 // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child. 840 if (pipe(fd)) { 841 fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno); 842 return -1; 843 } 844 get_my_path(path, PATH_MAX); 845 pid_t pid = fork(); 846 if(pid < 0) return -1; 847 848 if (pid == 0) { 849 // child side of the fork 850 851 // redirect stderr to the pipe 852 // we use stderr instead of stdout due to stdout's buffering behavior. 853 adb_close(fd[0]); 854 dup2(fd[1], STDERR_FILENO); 855 adb_close(fd[1]); 856 857 // child process 858 int result = execl(path, "adb", "fork-server", "server", NULL); 859 // this should not return 860 fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno); 861 } else { 862 // parent side of the fork 863 864 char temp[3]; 865 866 temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C'; 867 // wait for the "OK\n" message 868 adb_close(fd[1]); 869 int ret = adb_read(fd[0], temp, 3); 870 int saved_errno = errno; 871 adb_close(fd[0]); 872 if (ret < 0) { 873 fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", saved_errno); 874 return -1; 875 } 876 if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 877 fprintf(stderr, "ADB server didn't ACK\n" ); 878 return -1; 879 } 880 881 setsid(); 882 } 883#else 884#error "cannot implement background server start on this platform" 885#endif 886 return 0; 887} 888#endif 889 890/* Constructs a local name of form tcp:port. 891 * target_str points to the target string, it's content will be overwritten. 892 * target_size is the capacity of the target string. 893 * server_port is the port number to use for the local name. 894 */ 895void build_local_name(char* target_str, size_t target_size, int server_port) 896{ 897 snprintf(target_str, target_size, "tcp:%d", server_port); 898} 899 900int adb_main(int is_daemon, int server_port) 901{ 902#if !ADB_HOST 903 int secure = 0; 904 int port; 905 char value[PROPERTY_VALUE_MAX]; 906#endif 907 908 atexit(adb_cleanup); 909#ifdef HAVE_WIN32_PROC 910 SetConsoleCtrlHandler( ctrlc_handler, TRUE ); 911#elif defined(HAVE_FORKEXEC) 912 // No SIGCHLD. Let the service subproc handle its children. 913 signal(SIGPIPE, SIG_IGN); 914#endif 915 916 init_transport_registration(); 917 918 919#if ADB_HOST 920 HOST = 1; 921 usb_vendors_init(); 922 usb_init(); 923 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 924 925 char local_name[30]; 926 build_local_name(local_name, sizeof(local_name), server_port); 927 if(install_listener(local_name, "*smartsocket*", NULL)) { 928 exit(1); 929 } 930#else 931 /* run adbd in secure mode if ro.secure is set and 932 ** we are not in the emulator 933 */ 934 property_get("ro.kernel.qemu", value, ""); 935 if (strcmp(value, "1") != 0) { 936 property_get("ro.secure", value, "1"); 937 if (strcmp(value, "1") == 0) { 938 // don't run as root if ro.secure is set... 939 secure = 1; 940 941 // ... except we allow running as root in userdebug builds if the 942 // service.adb.root property has been set by the "adb root" command 943 property_get("ro.debuggable", value, ""); 944 if (strcmp(value, "1") == 0) { 945 property_get("service.adb.root", value, ""); 946 if (strcmp(value, "1") == 0) { 947 secure = 0; 948 } 949 } 950 } 951 } 952 953 /* don't listen on a port (default 5037) if running in secure mode */ 954 /* don't run as root if we are running in secure mode */ 955 if (secure) { 956 struct __user_cap_header_struct header; 957 struct __user_cap_data_struct cap; 958 959 if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0) { 960 exit(1); 961 } 962 963 /* add extra groups: 964 ** AID_ADB to access the USB driver 965 ** AID_LOG to read system logs (adb logcat) 966 ** AID_INPUT to diagnose input issues (getevent) 967 ** AID_INET to diagnose network issues (netcfg, ping) 968 ** AID_GRAPHICS to access the frame buffer 969 ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump) 970 ** AID_SDCARD_RW to allow writing to the SD card 971 ** AID_MOUNT to allow unmounting the SD card before rebooting 972 ** AID_NET_BW_STATS to read out qtaguid statistics 973 */ 974 gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS, 975 AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_RW, AID_MOUNT, 976 AID_NET_BW_STATS }; 977 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 978 exit(1); 979 } 980 981 /* then switch user and group to "shell" */ 982 if (setgid(AID_SHELL) != 0) { 983 exit(1); 984 } 985 if (setuid(AID_SHELL) != 0) { 986 exit(1); 987 } 988 989 /* set CAP_SYS_BOOT capability, so "adb reboot" will succeed */ 990 header.version = _LINUX_CAPABILITY_VERSION; 991 header.pid = 0; 992 cap.effective = cap.permitted = (1 << CAP_SYS_BOOT); 993 cap.inheritable = 0; 994 capset(&header, &cap); 995 996 D("Local port disabled\n"); 997 } else { 998 char local_name[30]; 999 build_local_name(local_name, sizeof(local_name), server_port); 1000 if(install_listener(local_name, "*smartsocket*", NULL)) { 1001 exit(1); 1002 } 1003 } 1004 1005 int usb = 0; 1006 if (access("/dev/android_adb", F_OK) == 0) { 1007 // listen on USB 1008 usb_init(); 1009 usb = 1; 1010 } 1011 1012 // If one of these properties is set, also listen on that port 1013 // If one of the properties isn't set and we couldn't listen on usb, 1014 // listen on the default port. 1015 property_get("service.adb.tcp.port", value, ""); 1016 if (!value[0]) { 1017 property_get("persist.adb.tcp.port", value, ""); 1018 } 1019 if (sscanf(value, "%d", &port) == 1 && port > 0) { 1020 printf("using port=%d\n", port); 1021 // listen on TCP port specified by service.adb.tcp.port property 1022 local_init(port); 1023 } else if (!usb) { 1024 // listen on default port 1025 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 1026 } 1027 1028 D("adb_main(): pre init_jdwp()\n"); 1029 init_jdwp(); 1030 D("adb_main(): post init_jdwp()\n"); 1031#endif 1032 1033 if (is_daemon) 1034 { 1035 // inform our parent that we are up and running. 1036#ifdef HAVE_WIN32_PROC 1037 DWORD count; 1038 WriteFile( GetStdHandle( STD_OUTPUT_HANDLE ), "OK\n", 3, &count, NULL ); 1039#elif defined(HAVE_FORKEXEC) 1040 fprintf(stderr, "OK\n"); 1041#endif 1042 start_logging(); 1043 } 1044 D("Event loop starting\n"); 1045 1046 fdevent_loop(); 1047 1048 usb_cleanup(); 1049 1050 return 0; 1051} 1052 1053#if ADB_HOST 1054void connect_device(char* host, char* buffer, int buffer_size) 1055{ 1056 int port, fd; 1057 char* portstr = strchr(host, ':'); 1058 char hostbuf[100]; 1059 char serial[100]; 1060 1061 strncpy(hostbuf, host, sizeof(hostbuf) - 1); 1062 if (portstr) { 1063 if (portstr - host >= (ptrdiff_t)sizeof(hostbuf)) { 1064 snprintf(buffer, buffer_size, "bad host name %s", host); 1065 return; 1066 } 1067 // zero terminate the host at the point we found the colon 1068 hostbuf[portstr - host] = 0; 1069 if (sscanf(portstr + 1, "%d", &port) == 0) { 1070 snprintf(buffer, buffer_size, "bad port number %s", portstr); 1071 return; 1072 } 1073 } else { 1074 port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT; 1075 } 1076 1077 snprintf(serial, sizeof(serial), "%s:%d", hostbuf, port); 1078 if (find_transport(serial)) { 1079 snprintf(buffer, buffer_size, "already connected to %s", serial); 1080 return; 1081 } 1082 1083 fd = socket_network_client(hostbuf, port, SOCK_STREAM); 1084 if (fd < 0) { 1085 snprintf(buffer, buffer_size, "unable to connect to %s:%d", host, port); 1086 return; 1087 } 1088 1089 D("client: connected on remote on fd %d\n", fd); 1090 close_on_exec(fd); 1091 disable_tcp_nagle(fd); 1092 register_socket_transport(fd, serial, port, 0); 1093 snprintf(buffer, buffer_size, "connected to %s", serial); 1094} 1095 1096void connect_emulator(char* port_spec, char* buffer, int buffer_size) 1097{ 1098 char* port_separator = strchr(port_spec, ','); 1099 if (!port_separator) { 1100 snprintf(buffer, buffer_size, 1101 "unable to parse '%s' as <console port>,<adb port>", 1102 port_spec); 1103 return; 1104 } 1105 1106 // Zero-terminate console port and make port_separator point to 2nd port. 1107 *port_separator++ = 0; 1108 int console_port = strtol(port_spec, NULL, 0); 1109 int adb_port = strtol(port_separator, NULL, 0); 1110 if (!(console_port > 0 && adb_port > 0)) { 1111 *(port_separator - 1) = ','; 1112 snprintf(buffer, buffer_size, 1113 "Invalid port numbers: Expected positive numbers, got '%s'", 1114 port_spec); 1115 return; 1116 } 1117 1118 /* Check if the emulator is already known. 1119 * Note: There's a small but harmless race condition here: An emulator not 1120 * present just yet could be registered by another invocation right 1121 * after doing this check here. However, local_connect protects 1122 * against double-registration too. From here, a better error message 1123 * can be produced. In the case of the race condition, the very specific 1124 * error message won't be shown, but the data doesn't get corrupted. */ 1125 atransport* known_emulator = find_emulator_transport_by_adb_port(adb_port); 1126 if (known_emulator != NULL) { 1127 snprintf(buffer, buffer_size, 1128 "Emulator on port %d already registered.", adb_port); 1129 return; 1130 } 1131 1132 /* Check if more emulators can be registered. Similar unproblematic 1133 * race condition as above. */ 1134 int candidate_slot = get_available_local_transport_index(); 1135 if (candidate_slot < 0) { 1136 snprintf(buffer, buffer_size, "Cannot accept more emulators."); 1137 return; 1138 } 1139 1140 /* Preconditions met, try to connect to the emulator. */ 1141 if (!local_connect_arbitrary_ports(console_port, adb_port)) { 1142 snprintf(buffer, buffer_size, 1143 "Connected to emulator on ports %d,%d", console_port, adb_port); 1144 } else { 1145 snprintf(buffer, buffer_size, 1146 "Could not connect to emulator on ports %d,%d", 1147 console_port, adb_port); 1148 } 1149} 1150#endif 1151 1152int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s) 1153{ 1154 atransport *transport = NULL; 1155 char buf[4096]; 1156 1157 if(!strcmp(service, "kill")) { 1158 fprintf(stderr,"adb server killed by remote request\n"); 1159 fflush(stdout); 1160 adb_write(reply_fd, "OKAY", 4); 1161 usb_cleanup(); 1162 exit(0); 1163 } 1164 1165#if ADB_HOST 1166 // "transport:" is used for switching transport with a specified serial number 1167 // "transport-usb:" is used for switching transport to the only USB transport 1168 // "transport-local:" is used for switching transport to the only local transport 1169 // "transport-any:" is used for switching transport to the only transport 1170 if (!strncmp(service, "transport", strlen("transport"))) { 1171 char* error_string = "unknown failure"; 1172 transport_type type = kTransportAny; 1173 1174 if (!strncmp(service, "transport-usb", strlen("transport-usb"))) { 1175 type = kTransportUsb; 1176 } else if (!strncmp(service, "transport-local", strlen("transport-local"))) { 1177 type = kTransportLocal; 1178 } else if (!strncmp(service, "transport-any", strlen("transport-any"))) { 1179 type = kTransportAny; 1180 } else if (!strncmp(service, "transport:", strlen("transport:"))) { 1181 service += strlen("transport:"); 1182 serial = service; 1183 } 1184 1185 transport = acquire_one_transport(CS_ANY, type, serial, &error_string); 1186 1187 if (transport) { 1188 s->transport = transport; 1189 adb_write(reply_fd, "OKAY", 4); 1190 } else { 1191 sendfailmsg(reply_fd, error_string); 1192 } 1193 return 1; 1194 } 1195 1196 // return a list of all connected devices 1197 if (!strncmp(service, "devices", 7)) { 1198 char buffer[4096]; 1199 int use_long = !strcmp(service+7, "-l"); 1200 if (use_long || service[7] == 0) { 1201 memset(buf, 0, sizeof(buf)); 1202 memset(buffer, 0, sizeof(buffer)); 1203 D("Getting device list \n"); 1204 list_transports(buffer, sizeof(buffer), use_long); 1205 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer); 1206 D("Wrote device list \n"); 1207 writex(reply_fd, buf, strlen(buf)); 1208 return 0; 1209 } 1210 } 1211 1212 // add a new TCP transport, device or emulator 1213 if (!strncmp(service, "connect:", 8)) { 1214 char buffer[4096]; 1215 char* host = service + 8; 1216 if (!strncmp(host, "emu:", 4)) { 1217 connect_emulator(host + 4, buffer, sizeof(buffer)); 1218 } else { 1219 connect_device(host, buffer, sizeof(buffer)); 1220 } 1221 // Send response for emulator and device 1222 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer); 1223 writex(reply_fd, buf, strlen(buf)); 1224 return 0; 1225 } 1226 1227 // remove TCP transport 1228 if (!strncmp(service, "disconnect:", 11)) { 1229 char buffer[4096]; 1230 memset(buffer, 0, sizeof(buffer)); 1231 char* serial = service + 11; 1232 if (serial[0] == 0) { 1233 // disconnect from all TCP devices 1234 unregister_all_tcp_transports(); 1235 } else { 1236 char hostbuf[100]; 1237 // assume port 5555 if no port is specified 1238 if (!strchr(serial, ':')) { 1239 snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial); 1240 serial = hostbuf; 1241 } 1242 atransport *t = find_transport(serial); 1243 1244 if (t) { 1245 unregister_transport(t); 1246 } else { 1247 snprintf(buffer, sizeof(buffer), "No such device %s", serial); 1248 } 1249 } 1250 1251 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer); 1252 writex(reply_fd, buf, strlen(buf)); 1253 return 0; 1254 } 1255 1256 // returns our value for ADB_SERVER_VERSION 1257 if (!strcmp(service, "version")) { 1258 char version[12]; 1259 snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION); 1260 snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version); 1261 writex(reply_fd, buf, strlen(buf)); 1262 return 0; 1263 } 1264 1265 if(!strncmp(service,"get-serialno",strlen("get-serialno"))) { 1266 char *out = "unknown"; 1267 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1268 if (transport && transport->serial) { 1269 out = transport->serial; 1270 } 1271 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 1272 writex(reply_fd, buf, strlen(buf)); 1273 return 0; 1274 } 1275 if(!strncmp(service,"get-devpath",strlen("get-devpath"))) { 1276 char *out = "unknown"; 1277 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1278 if (transport && transport->devpath) { 1279 out = transport->devpath; 1280 } 1281 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 1282 writex(reply_fd, buf, strlen(buf)); 1283 return 0; 1284 } 1285 // indicates a new emulator instance has started 1286 if (!strncmp(service,"emulator:",9)) { 1287 int port = atoi(service+9); 1288 local_connect(port); 1289 /* we don't even need to send a reply */ 1290 return 0; 1291 } 1292#endif // ADB_HOST 1293 1294 if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) { 1295 char *local, *remote, *err; 1296 int r; 1297 atransport *transport; 1298 1299 int createForward = strncmp(service,"kill",4); 1300 1301 local = service + (createForward ? 8 : 12); 1302 remote = strchr(local,';'); 1303 if(remote == 0) { 1304 sendfailmsg(reply_fd, "malformed forward spec"); 1305 return 0; 1306 } 1307 1308 *remote++ = 0; 1309 if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){ 1310 sendfailmsg(reply_fd, "malformed forward spec"); 1311 return 0; 1312 } 1313 1314 transport = acquire_one_transport(CS_ANY, ttype, serial, &err); 1315 if (!transport) { 1316 sendfailmsg(reply_fd, err); 1317 return 0; 1318 } 1319 1320 if (createForward) { 1321 r = install_listener(local, remote, transport); 1322 } else { 1323 r = remove_listener(local, remote, transport); 1324 } 1325 if(r == 0) { 1326 /* 1st OKAY is connect, 2nd OKAY is status */ 1327 writex(reply_fd, "OKAYOKAY", 8); 1328 return 0; 1329 } 1330 1331 if (createForward) { 1332 sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket"); 1333 } else { 1334 sendfailmsg(reply_fd, "cannot remove listener"); 1335 } 1336 return 0; 1337 } 1338 1339 if(!strncmp(service,"get-state",strlen("get-state"))) { 1340 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1341 char *state = connection_state_name(transport); 1342 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state); 1343 writex(reply_fd, buf, strlen(buf)); 1344 return 0; 1345 } 1346 return -1; 1347} 1348 1349#if !ADB_HOST 1350int recovery_mode = 0; 1351#endif 1352 1353int main(int argc, char **argv) 1354{ 1355#if ADB_HOST 1356 adb_sysdeps_init(); 1357 adb_trace_init(); 1358 D("Handling commandline()\n"); 1359 return adb_commandline(argc - 1, argv + 1); 1360#else 1361 if((argc > 1) && (!strcmp(argv[1],"recovery"))) { 1362 adb_device_banner = "recovery"; 1363 recovery_mode = 1; 1364 } 1365 1366 start_device_log(); 1367 D("Handling main()\n"); 1368 return adb_main(0, DEFAULT_ADB_PORT); 1369#endif 1370} 1371