adb.c revision 2015549667fb77706a9879e974a3875ebccd8198
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 27#include "sysdeps.h" 28#include "adb.h" 29 30#if !ADB_HOST 31#include <private/android_filesystem_config.h> 32#endif 33 34 35int HOST = 0; 36 37static const char *adb_device_banner = "device"; 38 39void fatal(const char *fmt, ...) 40{ 41 va_list ap; 42 va_start(ap, fmt); 43 fprintf(stderr, "error: "); 44 vfprintf(stderr, fmt, ap); 45 fprintf(stderr, "\n"); 46 va_end(ap); 47 exit(-1); 48} 49 50void fatal_errno(const char *fmt, ...) 51{ 52 va_list ap; 53 va_start(ap, fmt); 54 fprintf(stderr, "error: %s: ", strerror(errno)); 55 vfprintf(stderr, fmt, ap); 56 fprintf(stderr, "\n"); 57 va_end(ap); 58 exit(-1); 59} 60 61int adb_trace_mask; 62 63/* read a comma/space/colum/semi-column separated list of tags 64 * from the ADB_TRACE environment variable and build the trace 65 * mask from it. note that '1' and 'all' are special cases to 66 * enable all tracing 67 */ 68void adb_trace_init(void) 69{ 70 const char* p = getenv("ADB_TRACE"); 71 const char* q; 72 73 static const struct { 74 const char* tag; 75 int flag; 76 } tags[] = { 77 { "1", 0 }, 78 { "all", 0 }, 79 { "adb", TRACE_ADB }, 80 { "sockets", TRACE_SOCKETS }, 81 { "packets", TRACE_PACKETS }, 82 { "rwx", TRACE_RWX }, 83 { "usb", TRACE_USB }, 84 { "sync", TRACE_SYNC }, 85 { "sysdeps", TRACE_SYSDEPS }, 86 { "transport", TRACE_TRANSPORT }, 87 { "jdwp", TRACE_JDWP }, 88 { NULL, 0 } 89 }; 90 91 if (p == NULL) 92 return; 93 94 /* use a comma/column/semi-colum/space separated list */ 95 while (*p) { 96 int len, tagn; 97 98 q = strpbrk(p, " ,:;"); 99 if (q == NULL) { 100 q = p + strlen(p); 101 } 102 len = q - p; 103 104 for (tagn = 0; tags[tagn].tag != NULL; tagn++) 105 { 106 int taglen = strlen(tags[tagn].tag); 107 108 if (len == taglen && !memcmp(tags[tagn].tag, p, len) ) 109 { 110 int flag = tags[tagn].flag; 111 if (flag == 0) { 112 adb_trace_mask = ~0; 113 return; 114 } 115 adb_trace_mask |= (1 << flag); 116 break; 117 } 118 } 119 p = q; 120 if (*p) 121 p++; 122 } 123} 124 125 126apacket *get_apacket(void) 127{ 128 apacket *p = malloc(sizeof(apacket)); 129 if(p == 0) fatal("failed to allocate an apacket"); 130 memset(p, 0, sizeof(apacket) - MAX_PAYLOAD); 131 return p; 132} 133 134void put_apacket(apacket *p) 135{ 136 free(p); 137} 138 139void handle_online(void) 140{ 141 D("adb: online\n"); 142#if !ADB_HOST 143 property_set("adb.connected","1"); 144#endif 145} 146 147void handle_offline(atransport *t) 148{ 149 D("adb: offline\n"); 150 //Close the associated usb 151 run_transport_disconnects(t); 152#if !ADB_HOST 153 property_set("adb.connected",""); 154#endif 155} 156 157#if TRACE_PACKETS 158#define DUMPMAX 32 159void print_packet(const char *label, apacket *p) 160{ 161 char *tag; 162 char *x; 163 unsigned count; 164 165 switch(p->msg.command){ 166 case A_SYNC: tag = "SYNC"; break; 167 case A_CNXN: tag = "CNXN" ; break; 168 case A_OPEN: tag = "OPEN"; break; 169 case A_OKAY: tag = "OKAY"; break; 170 case A_CLSE: tag = "CLSE"; break; 171 case A_WRTE: tag = "WRTE"; break; 172 default: tag = "????"; break; 173 } 174 175 fprintf(stderr, "%s: %s %08x %08x %04x \"", 176 label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length); 177 count = p->msg.data_length; 178 x = (char*) p->data; 179 if(count > DUMPMAX) { 180 count = DUMPMAX; 181 tag = "\n"; 182 } else { 183 tag = "\"\n"; 184 } 185 while(count-- > 0){ 186 if((*x >= ' ') && (*x < 127)) { 187 fputc(*x, stderr); 188 } else { 189 fputc('.', stderr); 190 } 191 x++; 192 } 193 fprintf(stderr, tag); 194} 195#endif 196 197static void send_ready(unsigned local, unsigned remote, atransport *t) 198{ 199 D("Calling send_ready \n"); 200 apacket *p = get_apacket(); 201 p->msg.command = A_OKAY; 202 p->msg.arg0 = local; 203 p->msg.arg1 = remote; 204 send_packet(p, t); 205} 206 207static void send_close(unsigned local, unsigned remote, atransport *t) 208{ 209 D("Calling send_close \n"); 210 apacket *p = get_apacket(); 211 p->msg.command = A_CLSE; 212 p->msg.arg0 = local; 213 p->msg.arg1 = remote; 214 send_packet(p, t); 215} 216 217static void send_connect(atransport *t) 218{ 219 D("Calling send_connect \n"); 220 apacket *cp = get_apacket(); 221 cp->msg.command = A_CNXN; 222 cp->msg.arg0 = A_VERSION; 223 cp->msg.arg1 = MAX_PAYLOAD; 224 snprintf((char*) cp->data, sizeof cp->data, "%s::", 225 HOST ? "host" : adb_device_banner); 226 cp->msg.data_length = strlen((char*) cp->data) + 1; 227 send_packet(cp, t); 228#if ADB_HOST 229 /* XXX why sleep here? */ 230 // allow the device some time to respond to the connect message 231 adb_sleep_ms(1000); 232#endif 233} 234 235static char *connection_state_name(atransport *t) 236{ 237 if (t == NULL) { 238 return "unknown"; 239 } 240 241 switch(t->connection_state) { 242 case CS_BOOTLOADER: 243 return "bootloader"; 244 case CS_DEVICE: 245 return "device"; 246 case CS_OFFLINE: 247 return "offline"; 248 default: 249 return "unknown"; 250 } 251} 252 253void parse_banner(char *banner, atransport *t) 254{ 255 char *type, *product, *end; 256 257 D("parse_banner: %s\n", banner); 258 type = banner; 259 product = strchr(type, ':'); 260 if(product) { 261 *product++ = 0; 262 } else { 263 product = ""; 264 } 265 266 /* remove trailing ':' */ 267 end = strchr(product, ':'); 268 if(end) *end = 0; 269 270 /* save product name in device structure */ 271 if (t->product == NULL) { 272 t->product = strdup(product); 273 } else if (strcmp(product, t->product) != 0) { 274 free(t->product); 275 t->product = strdup(product); 276 } 277 278 if(!strcmp(type, "bootloader")){ 279 D("setting connection_state to CS_BOOTLOADER\n"); 280 t->connection_state = CS_BOOTLOADER; 281 update_transports(); 282 return; 283 } 284 285 if(!strcmp(type, "device")) { 286 D("setting connection_state to CS_DEVICE\n"); 287 t->connection_state = CS_DEVICE; 288 update_transports(); 289 return; 290 } 291 292 if(!strcmp(type, "recovery")) { 293 D("setting connection_state to CS_RECOVERY\n"); 294 t->connection_state = CS_RECOVERY; 295 update_transports(); 296 return; 297 } 298 299 t->connection_state = CS_HOST; 300} 301 302void handle_packet(apacket *p, atransport *t) 303{ 304 asocket *s; 305 306 D("handle_packet() %d\n", p->msg.command); 307 308 print_packet("recv", p); 309 310 switch(p->msg.command){ 311 case A_SYNC: 312 if(p->msg.arg0){ 313 send_packet(p, t); 314 if(HOST) send_connect(t); 315 } else { 316 t->connection_state = CS_OFFLINE; 317 handle_offline(t); 318 send_packet(p, t); 319 } 320 return; 321 322 case A_CNXN: /* CONNECT(version, maxdata, "system-id-string") */ 323 /* XXX verify version, etc */ 324 if(t->connection_state != CS_OFFLINE) { 325 t->connection_state = CS_OFFLINE; 326 handle_offline(t); 327 } 328 parse_banner((char*) p->data, t); 329 handle_online(); 330 if(!HOST) send_connect(t); 331 break; 332 333 case A_OPEN: /* OPEN(local-id, 0, "destination") */ 334 if(t->connection_state != CS_OFFLINE) { 335 char *name = (char*) p->data; 336 name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0; 337 s = create_local_service_socket(name); 338 if(s == 0) { 339 send_close(0, p->msg.arg0, t); 340 } else { 341 s->peer = create_remote_socket(p->msg.arg0, t); 342 s->peer->peer = s; 343 send_ready(s->id, s->peer->id, t); 344 s->ready(s); 345 } 346 } 347 break; 348 349 case A_OKAY: /* READY(local-id, remote-id, "") */ 350 if(t->connection_state != CS_OFFLINE) { 351 if((s = find_local_socket(p->msg.arg1))) { 352 if(s->peer == 0) { 353 s->peer = create_remote_socket(p->msg.arg0, t); 354 s->peer->peer = s; 355 } 356 s->ready(s); 357 } 358 } 359 break; 360 361 case A_CLSE: /* CLOSE(local-id, remote-id, "") */ 362 if(t->connection_state != CS_OFFLINE) { 363 if((s = find_local_socket(p->msg.arg1))) { 364 s->close(s); 365 } 366 } 367 break; 368 369 case A_WRTE: 370 if(t->connection_state != CS_OFFLINE) { 371 if((s = find_local_socket(p->msg.arg1))) { 372 unsigned rid = p->msg.arg0; 373 p->len = p->msg.data_length; 374 375 if(s->enqueue(s, p) == 0) { 376 D("Enqueue the socket\n"); 377 send_ready(s->id, rid, t); 378 } 379 return; 380 } 381 } 382 break; 383 384 default: 385 printf("handle_packet: what is %08x?!\n", p->msg.command); 386 } 387 388 put_apacket(p); 389} 390 391alistener listener_list = { 392 .next = &listener_list, 393 .prev = &listener_list, 394}; 395 396static void ss_listener_event_func(int _fd, unsigned ev, void *_l) 397{ 398 asocket *s; 399 400 if(ev & FDE_READ) { 401 struct sockaddr addr; 402 socklen_t alen; 403 int fd; 404 405 alen = sizeof(addr); 406 fd = adb_socket_accept(_fd, &addr, &alen); 407 if(fd < 0) return; 408 409 adb_socket_setbufsize(fd, CHUNK_SIZE); 410 411 s = create_local_socket(fd); 412 if(s) { 413 connect_to_smartsocket(s); 414 return; 415 } 416 417 adb_close(fd); 418 } 419} 420 421static void listener_event_func(int _fd, unsigned ev, void *_l) 422{ 423 alistener *l = _l; 424 asocket *s; 425 426 if(ev & FDE_READ) { 427 struct sockaddr addr; 428 socklen_t alen; 429 int fd; 430 431 alen = sizeof(addr); 432 fd = adb_socket_accept(_fd, &addr, &alen); 433 if(fd < 0) return; 434 435 s = create_local_socket(fd); 436 if(s) { 437 s->transport = l->transport; 438 connect_to_remote(s, l->connect_to); 439 return; 440 } 441 442 adb_close(fd); 443 } 444} 445 446static void free_listener(alistener* l) 447{ 448 if (l->next) { 449 l->next->prev = l->prev; 450 l->prev->next = l->next; 451 l->next = l->prev = l; 452 } 453 454 // closes the corresponding fd 455 fdevent_remove(&l->fde); 456 457 if (l->local_name) 458 free((char*)l->local_name); 459 460 if (l->connect_to) 461 free((char*)l->connect_to); 462 463 if (l->transport) { 464 remove_transport_disconnect(l->transport, &l->disconnect); 465 } 466 free(l); 467} 468 469static void listener_disconnect(void* _l, atransport* t) 470{ 471 alistener* l = _l; 472 473 free_listener(l); 474} 475 476int local_name_to_fd(const char *name) 477{ 478 int port; 479 480 if(!strncmp("tcp:", name, 4)){ 481 int ret; 482 port = atoi(name + 4); 483 ret = socket_loopback_server(port, SOCK_STREAM); 484 return ret; 485 } 486#ifndef HAVE_WIN32_IPC /* no Unix-domain sockets on Win32 */ 487 // It's non-sensical to support the "reserved" space on the adb host side 488 if(!strncmp(name, "local:", 6)) { 489 return socket_local_server(name + 6, 490 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 491 } else if(!strncmp(name, "localabstract:", 14)) { 492 return socket_local_server(name + 14, 493 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 494 } else if(!strncmp(name, "localfilesystem:", 16)) { 495 return socket_local_server(name + 16, 496 ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM); 497 } 498 499#endif 500 printf("unknown local portname '%s'\n", name); 501 return -1; 502} 503 504static int remove_listener(const char *local_name, const char *connect_to, atransport* transport) 505{ 506 alistener *l; 507 508 for (l = listener_list.next; l != &listener_list; l = l->next) { 509 if (!strcmp(local_name, l->local_name) && 510 !strcmp(connect_to, l->connect_to) && 511 l->transport && l->transport == transport) { 512 513 listener_disconnect(l, transport); 514 return 0; 515 } 516 } 517 518 return -1; 519} 520 521static int install_listener(const char *local_name, const char *connect_to, atransport* transport) 522{ 523 alistener *l; 524 525 //printf("install_listener('%s','%s')\n", local_name, connect_to); 526 527 for(l = listener_list.next; l != &listener_list; l = l->next){ 528 if(strcmp(local_name, l->local_name) == 0) { 529 char *cto; 530 531 /* can't repurpose a smartsocket */ 532 if(l->connect_to[0] == '*') { 533 return -1; 534 } 535 536 cto = strdup(connect_to); 537 if(cto == 0) { 538 return -1; 539 } 540 541 //printf("rebinding '%s' to '%s'\n", local_name, connect_to); 542 free((void*) l->connect_to); 543 l->connect_to = cto; 544 if (l->transport != transport) { 545 remove_transport_disconnect(l->transport, &l->disconnect); 546 l->transport = transport; 547 add_transport_disconnect(l->transport, &l->disconnect); 548 } 549 return 0; 550 } 551 } 552 553 if((l = calloc(1, sizeof(alistener))) == 0) goto nomem; 554 if((l->local_name = strdup(local_name)) == 0) goto nomem; 555 if((l->connect_to = strdup(connect_to)) == 0) goto nomem; 556 557 558 l->fd = local_name_to_fd(local_name); 559 if(l->fd < 0) { 560 free((void*) l->local_name); 561 free((void*) l->connect_to); 562 free(l); 563 printf("cannot bind '%s'\n", local_name); 564 return -2; 565 } 566 567 close_on_exec(l->fd); 568 if(!strcmp(l->connect_to, "*smartsocket*")) { 569 fdevent_install(&l->fde, l->fd, ss_listener_event_func, l); 570 } else { 571 fdevent_install(&l->fde, l->fd, listener_event_func, l); 572 } 573 fdevent_set(&l->fde, FDE_READ); 574 575 l->next = &listener_list; 576 l->prev = listener_list.prev; 577 l->next->prev = l; 578 l->prev->next = l; 579 l->transport = transport; 580 581 if (transport) { 582 l->disconnect.opaque = l; 583 l->disconnect.func = listener_disconnect; 584 add_transport_disconnect(transport, &l->disconnect); 585 } 586 return 0; 587 588nomem: 589 fatal("cannot allocate listener"); 590 return 0; 591} 592 593#ifdef HAVE_FORKEXEC 594static void sigchld_handler(int n) 595{ 596 int status; 597 while(waitpid(-1, &status, WNOHANG) > 0) ; 598} 599#endif 600 601#ifdef HAVE_WIN32_PROC 602static BOOL WINAPI ctrlc_handler(DWORD type) 603{ 604 exit(STATUS_CONTROL_C_EXIT); 605 return TRUE; 606} 607#endif 608 609static void adb_cleanup(void) 610{ 611 usb_cleanup(); 612} 613 614void start_logging(void) 615{ 616#ifdef HAVE_WIN32_PROC 617 char temp[ MAX_PATH ]; 618 FILE* fnul; 619 FILE* flog; 620 621 GetTempPath( sizeof(temp) - 8, temp ); 622 strcat( temp, "adb.log" ); 623 624 /* Win32 specific redirections */ 625 fnul = fopen( "NUL", "rt" ); 626 if (fnul != NULL) 627 stdin[0] = fnul[0]; 628 629 flog = fopen( temp, "at" ); 630 if (flog == NULL) 631 flog = fnul; 632 633 setvbuf( flog, NULL, _IONBF, 0 ); 634 635 stdout[0] = flog[0]; 636 stderr[0] = flog[0]; 637 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 638#else 639 int fd; 640 641 fd = unix_open("/dev/null", O_RDONLY); 642 dup2(fd, 0); 643 644 fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640); 645 if(fd < 0) { 646 fd = unix_open("/dev/null", O_WRONLY); 647 } 648 dup2(fd, 1); 649 dup2(fd, 2); 650 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 651#endif 652} 653 654#if !ADB_HOST 655void start_device_log(void) 656{ 657 int fd; 658 char path[100]; 659 660 snprintf(path, sizeof path, "/data/adb_%ld.txt", (long)time(NULL)); 661 fd = unix_open(path, O_WRONLY | O_CREAT | O_APPEND, 0640); 662 if (fd < 0) 663 return; 664 665 // redirect stdout and stderr to the log file 666 dup2(fd, 1); 667 dup2(fd, 2); 668 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 669 670 fd = unix_open("/dev/null", O_RDONLY); 671 dup2(fd, 0); 672 673 // log everything 674 adb_trace_mask = ~0; 675 // except TRACE_RWX is a bit too verbose 676 adb_trace_mask &= ~TRACE_RWX; 677} 678#endif 679 680#if ADB_HOST 681int launch_server() 682{ 683#ifdef HAVE_WIN32_PROC 684 /* we need to start the server in the background */ 685 /* we create a PIPE that will be used to wait for the server's "OK" */ 686 /* message since the pipe handles must be inheritable, we use a */ 687 /* security attribute */ 688 HANDLE pipe_read, pipe_write; 689 SECURITY_ATTRIBUTES sa; 690 STARTUPINFO startup; 691 PROCESS_INFORMATION pinfo; 692 char program_path[ MAX_PATH ]; 693 int ret; 694 695 sa.nLength = sizeof(sa); 696 sa.lpSecurityDescriptor = NULL; 697 sa.bInheritHandle = TRUE; 698 699 /* create pipe, and ensure its read handle isn't inheritable */ 700 ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 ); 701 if (!ret) { 702 fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() ); 703 return -1; 704 } 705 706 SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 ); 707 708 ZeroMemory( &startup, sizeof(startup) ); 709 startup.cb = sizeof(startup); 710 startup.hStdInput = GetStdHandle( STD_INPUT_HANDLE ); 711 startup.hStdOutput = pipe_write; 712 startup.hStdError = GetStdHandle( STD_ERROR_HANDLE ); 713 startup.dwFlags = STARTF_USESTDHANDLES; 714 715 ZeroMemory( &pinfo, sizeof(pinfo) ); 716 717 /* get path of current program */ 718 GetModuleFileName( NULL, program_path, sizeof(program_path) ); 719 720 ret = CreateProcess( 721 program_path, /* program path */ 722 "adb fork-server server", 723 /* the fork-server argument will set the 724 debug = 2 in the child */ 725 NULL, /* process handle is not inheritable */ 726 NULL, /* thread handle is not inheritable */ 727 TRUE, /* yes, inherit some handles */ 728 DETACHED_PROCESS, /* the new process doesn't have a console */ 729 NULL, /* use parent's environment block */ 730 NULL, /* use parent's starting directory */ 731 &startup, /* startup info, i.e. std handles */ 732 &pinfo ); 733 734 CloseHandle( pipe_write ); 735 736 if (!ret) { 737 fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() ); 738 CloseHandle( pipe_read ); 739 return -1; 740 } 741 742 CloseHandle( pinfo.hProcess ); 743 CloseHandle( pinfo.hThread ); 744 745 /* wait for the "OK\n" message */ 746 { 747 char temp[3]; 748 DWORD count; 749 750 ret = ReadFile( pipe_read, temp, 3, &count, NULL ); 751 CloseHandle( pipe_read ); 752 if ( !ret ) { 753 fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() ); 754 return -1; 755 } 756 if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 757 fprintf(stderr, "ADB server didn't ACK\n" ); 758 return -1; 759 } 760 } 761#elif defined(HAVE_FORKEXEC) 762 char path[PATH_MAX]; 763 int fd[2]; 764 765 // set up a pipe so the child can tell us when it is ready. 766 // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child. 767 if (pipe(fd)) { 768 fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno); 769 return -1; 770 } 771 get_my_path(path); 772 pid_t pid = fork(); 773 if(pid < 0) return -1; 774 775 if (pid == 0) { 776 // child side of the fork 777 778 // redirect stderr to the pipe 779 // we use stderr instead of stdout due to stdout's buffering behavior. 780 adb_close(fd[0]); 781 dup2(fd[1], STDERR_FILENO); 782 adb_close(fd[1]); 783 784 // child process 785 int result = execl(path, "adb", "fork-server", "server", NULL); 786 // this should not return 787 fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno); 788 } else { 789 // parent side of the fork 790 791 char temp[3]; 792 793 temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C'; 794 // wait for the "OK\n" message 795 adb_close(fd[1]); 796 int ret = adb_read(fd[0], temp, 3); 797 adb_close(fd[0]); 798 if (ret < 0) { 799 fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", errno); 800 return -1; 801 } 802 if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 803 fprintf(stderr, "ADB server didn't ACK\n" ); 804 return -1; 805 } 806 807 setsid(); 808 } 809#else 810#error "cannot implement background server start on this platform" 811#endif 812 return 0; 813} 814#endif 815 816int adb_main(int is_daemon) 817{ 818#if !ADB_HOST 819 int secure = 0; 820 char value[PROPERTY_VALUE_MAX]; 821 822 // prevent the OOM killer from killing us 823 char text[64]; 824 snprintf(text, sizeof text, "/proc/%d/oom_adj", (int)getpid()); 825 int fd = adb_open(text, O_WRONLY); 826 if (fd >= 0) { 827 // -17 should make us immune to OOM 828 snprintf(text, sizeof text, "%d", -17); 829 adb_write(fd, text, strlen(text)); 830 adb_close(fd); 831 } else { 832 D("adb: unable to open %s\n", text); 833 } 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_init(); 850 local_init(); 851 852 if(install_listener("tcp:5037", "*smartsocket*", NULL)) { 853 exit(1); 854 } 855#else 856 /* run adbd in secure mode if ro.secure is set and 857 ** we are not in the emulator 858 */ 859 property_get("ro.kernel.qemu", value, ""); 860 if (strcmp(value, "1") != 0) { 861 property_get("ro.secure", value, ""); 862 if (strcmp(value, "1") == 0) 863 secure = 1; 864 } 865 866 /* don't listen on port 5037 if we are running in secure mode */ 867 /* don't run as root if we are running in secure mode */ 868 if (secure) { 869 /* add extra groups: 870 ** AID_ADB to access the USB driver 871 ** AID_LOG to read system logs (adb logcat) 872 ** AID_INPUT to diagnose input issues (getevent) 873 ** AID_INET to diagnose network issues (netcfg, ping) 874 ** AID_GRAPHICS to access the frame buffer 875 ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump) 876 */ 877 gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS, 878 AID_NET_BT, AID_NET_BT_ADMIN }; 879 setgroups(sizeof(groups)/sizeof(groups[0]), groups); 880 881 /* then switch user and group to "shell" */ 882 setgid(AID_SHELL); 883 setuid(AID_SHELL); 884 885 D("Local port 5037 disabled\n"); 886 } else { 887 if(install_listener("tcp:5037", "*smartsocket*", NULL)) { 888 exit(1); 889 } 890 } 891 892 /* for the device, start the usb transport if the 893 ** android usb device exists, otherwise start the 894 ** network transport. 895 */ 896 if(access("/dev/android_adb", F_OK) == 0 || 897 access("/dev/android", F_OK) == 0) { 898 usb_init(); 899 } else { 900 local_init(); 901 } 902 init_jdwp(); 903#endif 904 905 if (is_daemon) 906 { 907 // inform our parent that we are up and running. 908#ifdef HAVE_WIN32_PROC 909 DWORD count; 910 WriteFile( GetStdHandle( STD_OUTPUT_HANDLE ), "OK\n", 3, &count, NULL ); 911#elif defined(HAVE_FORKEXEC) 912 fprintf(stderr, "OK\n"); 913#endif 914 start_logging(); 915 } 916 917 fdevent_loop(); 918 919 usb_cleanup(); 920 921 return 0; 922} 923 924int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s) 925{ 926 atransport *transport = NULL; 927 char buf[4096]; 928 929 if(!strcmp(service, "kill")) { 930 fprintf(stderr,"adb server killed by remote request\n"); 931 fflush(stdout); 932 adb_write(reply_fd, "OKAY", 4); 933 usb_cleanup(); 934 exit(0); 935 } 936 937#if ADB_HOST 938 // "transport:" is used for switching transport with a specified serial number 939 // "transport-usb:" is used for switching transport to the only USB transport 940 // "transport-local:" is used for switching transport to the only local transport 941 // "transport-any:" is used for switching transport to the only transport 942 if (!strncmp(service, "transport", strlen("transport"))) { 943 char* error_string = "unknown failure"; 944 transport_type type = kTransportAny; 945 946 if (!strncmp(service, "transport-usb", strlen("transport-usb"))) { 947 type = kTransportUsb; 948 } else if (!strncmp(service, "transport-local", strlen("transport-local"))) { 949 type = kTransportLocal; 950 } else if (!strncmp(service, "transport-any", strlen("transport-any"))) { 951 type = kTransportAny; 952 } else if (!strncmp(service, "transport:", strlen("transport:"))) { 953 service += strlen("transport:"); 954 serial = strdup(service); 955 } 956 957 transport = acquire_one_transport(CS_ANY, type, serial, &error_string); 958 959 if (transport) { 960 s->transport = transport; 961 adb_write(reply_fd, "OKAY", 4); 962 } else { 963 sendfailmsg(reply_fd, error_string); 964 } 965 return 1; 966 } 967 968 // return a list of all connected devices 969 if (!strcmp(service, "devices")) { 970 char buffer[4096]; 971 memset(buf, 0, sizeof(buf)); 972 memset(buffer, 0, sizeof(buffer)); 973 D("Getting device list \n"); 974 list_transports(buffer, sizeof(buffer)); 975 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer); 976 D("Wrote device list \n"); 977 writex(reply_fd, buf, strlen(buf)); 978 return 0; 979 } 980 981 // returns our value for ADB_SERVER_VERSION 982 if (!strcmp(service, "version")) { 983 char version[12]; 984 snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION); 985 snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version); 986 writex(reply_fd, buf, strlen(buf)); 987 return 0; 988 } 989 990 if(!strncmp(service,"get-serialno",strlen("get-serialno"))) { 991 char *out = "unknown"; 992 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 993 if (transport && transport->serial) { 994 out = transport->serial; 995 } 996 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 997 writex(reply_fd, buf, strlen(buf)); 998 return 0; 999 } 1000 // indicates a new emulator instance has started 1001 if (!strncmp(service,"emulator:",9)) { 1002 int port = atoi(service+9); 1003 local_connect(port); 1004 /* we don't even need to send a reply */ 1005 return 0; 1006 } 1007#endif // ADB_HOST 1008 1009 if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) { 1010 char *local, *remote, *err; 1011 int r; 1012 atransport *transport; 1013 1014 int createForward = strncmp(service,"kill",4); 1015 1016 local = service + (createForward ? 8 : 12); 1017 remote = strchr(local,';'); 1018 if(remote == 0) { 1019 sendfailmsg(reply_fd, "malformed forward spec"); 1020 return 0; 1021 } 1022 1023 *remote++ = 0; 1024 if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){ 1025 sendfailmsg(reply_fd, "malformed forward spec"); 1026 return 0; 1027 } 1028 1029 transport = acquire_one_transport(CS_ANY, ttype, serial, &err); 1030 if (!transport) { 1031 sendfailmsg(reply_fd, err); 1032 return 0; 1033 } 1034 1035 if (createForward) { 1036 r = install_listener(local, remote, transport); 1037 } else { 1038 r = remove_listener(local, remote, transport); 1039 } 1040 if(r == 0) { 1041 /* 1st OKAY is connect, 2nd OKAY is status */ 1042 writex(reply_fd, "OKAYOKAY", 8); 1043 return 0; 1044 } 1045 1046 if (createForward) { 1047 sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket"); 1048 } else { 1049 sendfailmsg(reply_fd, "cannot remove listener"); 1050 } 1051 return 0; 1052 } 1053 1054 if(!strncmp(service,"get-state",strlen("get-state"))) { 1055 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1056 char *state = connection_state_name(transport); 1057 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state); 1058 writex(reply_fd, buf, strlen(buf)); 1059 return 0; 1060 } 1061 return -1; 1062} 1063 1064#if !ADB_HOST 1065int recovery_mode = 0; 1066#endif 1067 1068int main(int argc, char **argv) 1069{ 1070 adb_trace_init(); 1071#if ADB_HOST 1072 adb_sysdeps_init(); 1073 return adb_commandline(argc - 1, argv + 1); 1074#else 1075 if((argc > 1) && (!strcmp(argv[1],"recovery"))) { 1076 adb_device_banner = "recovery"; 1077 recovery_mode = 1; 1078 } 1079#if ADB_DEVICE_LOG 1080 start_device_log(); 1081#endif 1082 return adb_main(0); 1083#endif 1084} 1085