adb.c revision 3fef581bc7a513defe48329973d14bec722f1293
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#if !ADB_HOST 140/* 141 * Implements ADB tracing inside the emulator. 142 */ 143 144#include <stdarg.h> 145 146/* 147 * Redefine open and write for qemu_pipe.h that contains inlined references 148 * to those routines. We will redifine them back after qemu_pipe.h inclusion. 149 */ 150 151#undef open 152#undef write 153#define open adb_open 154#define write adb_write 155#include <hardware/qemu_pipe.h> 156#undef open 157#undef write 158#define open ___xxx_open 159#define write ___xxx_write 160 161/* A handle to adb-debug qemud service in the emulator. */ 162int adb_debug_qemu = -1; 163 164/* Initializes connection with the adb-debug qemud service in the emulator. */ 165static int adb_qemu_trace_init(void) 166{ 167 char con_name[32]; 168 169 if (adb_debug_qemu >= 0) { 170 return 0; 171 } 172 173 /* adb debugging QEMUD service connection request. */ 174 snprintf(con_name, sizeof(con_name), "qemud:adb-debug"); 175 adb_debug_qemu = qemu_pipe_open(con_name); 176 return (adb_debug_qemu >= 0) ? 0 : -1; 177} 178 179void adb_qemu_trace(const char* fmt, ...) 180{ 181 va_list args; 182 va_start(args, fmt); 183 char msg[1024]; 184 185 if (adb_debug_qemu >= 0) { 186 vsnprintf(msg, sizeof(msg), fmt, args); 187 adb_write(adb_debug_qemu, msg, strlen(msg)); 188 } 189} 190#endif /* !ADB_HOST */ 191 192apacket *get_apacket(void) 193{ 194 apacket *p = malloc(sizeof(apacket)); 195 if(p == 0) fatal("failed to allocate an apacket"); 196 memset(p, 0, sizeof(apacket) - MAX_PAYLOAD); 197 return p; 198} 199 200void put_apacket(apacket *p) 201{ 202 free(p); 203} 204 205void handle_online(void) 206{ 207 D("adb: online\n"); 208} 209 210void handle_offline(atransport *t) 211{ 212 D("adb: offline\n"); 213 //Close the associated usb 214 run_transport_disconnects(t); 215} 216 217#if TRACE_PACKETS 218#define DUMPMAX 32 219void print_packet(const char *label, apacket *p) 220{ 221 char *tag; 222 char *x; 223 unsigned count; 224 225 switch(p->msg.command){ 226 case A_SYNC: tag = "SYNC"; break; 227 case A_CNXN: tag = "CNXN" ; break; 228 case A_OPEN: tag = "OPEN"; break; 229 case A_OKAY: tag = "OKAY"; break; 230 case A_CLSE: tag = "CLSE"; break; 231 case A_WRTE: tag = "WRTE"; break; 232 default: tag = "????"; break; 233 } 234 235 fprintf(stderr, "%s: %s %08x %08x %04x \"", 236 label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length); 237 count = p->msg.data_length; 238 x = (char*) p->data; 239 if(count > DUMPMAX) { 240 count = DUMPMAX; 241 tag = "\n"; 242 } else { 243 tag = "\"\n"; 244 } 245 while(count-- > 0){ 246 if((*x >= ' ') && (*x < 127)) { 247 fputc(*x, stderr); 248 } else { 249 fputc('.', stderr); 250 } 251 x++; 252 } 253 fprintf(stderr, tag); 254} 255#endif 256 257static void send_ready(unsigned local, unsigned remote, atransport *t) 258{ 259 D("Calling send_ready \n"); 260 apacket *p = get_apacket(); 261 p->msg.command = A_OKAY; 262 p->msg.arg0 = local; 263 p->msg.arg1 = remote; 264 send_packet(p, t); 265} 266 267static void send_close(unsigned local, unsigned remote, atransport *t) 268{ 269 D("Calling send_close \n"); 270 apacket *p = get_apacket(); 271 p->msg.command = A_CLSE; 272 p->msg.arg0 = local; 273 p->msg.arg1 = remote; 274 send_packet(p, t); 275} 276 277static size_t fill_connect_data(char *buf, size_t bufsize) 278{ 279#if ADB_HOST 280 return snprintf(buf, bufsize, "host::") + 1; 281#else 282 static const char *cnxn_props[] = { 283 "ro.product.name", 284 "ro.product.model", 285 "ro.product.device", 286 }; 287 static const int num_cnxn_props = ARRAY_SIZE(cnxn_props); 288 int i; 289 size_t remaining = bufsize; 290 size_t len; 291 292 len = snprintf(buf, remaining, "%s::", adb_device_banner); 293 remaining -= len; 294 buf += len; 295 for (i = 0; i < num_cnxn_props; i++) { 296 char value[PROPERTY_VALUE_MAX]; 297 property_get(cnxn_props[i], value, ""); 298 len = snprintf(buf, remaining, "%s=%s;", cnxn_props[i], value); 299 remaining -= len; 300 buf += len; 301 } 302 303 return bufsize - remaining + 1; 304#endif 305} 306 307static void send_connect(atransport *t) 308{ 309 D("Calling send_connect \n"); 310 apacket *cp = get_apacket(); 311 cp->msg.command = A_CNXN; 312 cp->msg.arg0 = A_VERSION; 313 cp->msg.arg1 = MAX_PAYLOAD; 314 cp->msg.data_length = fill_connect_data((char *)cp->data, 315 sizeof(cp->data)); 316 send_packet(cp, t); 317#if ADB_HOST 318 /* XXX why sleep here? */ 319 // allow the device some time to respond to the connect message 320 adb_sleep_ms(1000); 321#endif 322} 323 324static char *connection_state_name(atransport *t) 325{ 326 if (t == NULL) { 327 return "unknown"; 328 } 329 330 switch(t->connection_state) { 331 case CS_BOOTLOADER: 332 return "bootloader"; 333 case CS_DEVICE: 334 return "device"; 335 case CS_OFFLINE: 336 return "offline"; 337 default: 338 return "unknown"; 339 } 340} 341 342/* qual_overwrite is used to overwrite a qualifier string. dst is a 343 * pointer to a char pointer. It is assumed that if *dst is non-NULL, it 344 * was malloc'ed and needs to freed. A char buffer will be malloc'ed and 345 * filled with src and *dst will be set to 346 * point to the buffer. 347 */ 348static void qual_overwrite(char **dst, const char *src) 349{ 350 if (!dst) 351 return; 352 353 free(*dst); 354 *dst = NULL; 355 356 if (!src || !*src) 357 return; 358 359 *dst = strdup(src); 360} 361 362void parse_banner(char *banner, atransport *t) 363{ 364 static const char *prop_seps = ";"; 365 static const char key_val_sep = '='; 366 char *cp, *type; 367 368 D("parse_banner: %s\n", banner); 369 type = banner; 370 cp = strchr(type, ':'); 371 if (cp) { 372 *cp++ = 0; 373 /* Nothing is done with second field. */ 374 cp = strchr(cp, ':'); 375 if (cp) { 376 char *save; 377 char *key; 378 key = strtok_r(cp + 1, prop_seps, &save); 379 while (key) { 380 cp = strchr(key, key_val_sep); 381 if (cp) { 382 *cp++ = '\0'; 383 if (!strcmp(key, "ro.product.name")) 384 qual_overwrite(&t->product, cp); 385 else if (!strcmp(key, "ro.product.model")) 386 qual_overwrite(&t->model, cp); 387 else if (!strcmp(key, "ro.product.device")) 388 qual_overwrite(&t->device, cp); 389 } 390 key = strtok_r(NULL, prop_seps, &save); 391 } 392 } 393 } 394 395 if(!strcmp(type, "bootloader")){ 396 D("setting connection_state to CS_BOOTLOADER\n"); 397 t->connection_state = CS_BOOTLOADER; 398 update_transports(); 399 return; 400 } 401 402 if(!strcmp(type, "device")) { 403 D("setting connection_state to CS_DEVICE\n"); 404 t->connection_state = CS_DEVICE; 405 update_transports(); 406 return; 407 } 408 409 if(!strcmp(type, "recovery")) { 410 D("setting connection_state to CS_RECOVERY\n"); 411 t->connection_state = CS_RECOVERY; 412 update_transports(); 413 return; 414 } 415 416 if(!strcmp(type, "sideload")) { 417 D("setting connection_state to CS_SIDELOAD\n"); 418 t->connection_state = CS_SIDELOAD; 419 update_transports(); 420 return; 421 } 422 423 t->connection_state = CS_HOST; 424} 425 426void handle_packet(apacket *p, atransport *t) 427{ 428 asocket *s; 429 430 D("handle_packet() %c%c%c%c\n", ((char*) (&(p->msg.command)))[0], 431 ((char*) (&(p->msg.command)))[1], 432 ((char*) (&(p->msg.command)))[2], 433 ((char*) (&(p->msg.command)))[3]); 434 print_packet("recv", p); 435 436 switch(p->msg.command){ 437 case A_SYNC: 438 if(p->msg.arg0){ 439 send_packet(p, t); 440 if(HOST) send_connect(t); 441 } else { 442 t->connection_state = CS_OFFLINE; 443 handle_offline(t); 444 send_packet(p, t); 445 } 446 return; 447 448 case A_CNXN: /* CONNECT(version, maxdata, "system-id-string") */ 449 /* XXX verify version, etc */ 450 if(t->connection_state != CS_OFFLINE) { 451 t->connection_state = CS_OFFLINE; 452 handle_offline(t); 453 } 454 parse_banner((char*) p->data, t); 455 handle_online(); 456 if(!HOST) send_connect(t); 457 break; 458 459 case A_OPEN: /* OPEN(local-id, 0, "destination") */ 460 if(t->connection_state != CS_OFFLINE) { 461 char *name = (char*) p->data; 462 name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0; 463 s = create_local_service_socket(name); 464 if(s == 0) { 465 send_close(0, p->msg.arg0, t); 466 } else { 467 s->peer = create_remote_socket(p->msg.arg0, t); 468 s->peer->peer = s; 469 send_ready(s->id, s->peer->id, t); 470 s->ready(s); 471 } 472 } 473 break; 474 475 case A_OKAY: /* READY(local-id, remote-id, "") */ 476 if(t->connection_state != CS_OFFLINE) { 477 if((s = find_local_socket(p->msg.arg1))) { 478 if(s->peer == 0) { 479 s->peer = create_remote_socket(p->msg.arg0, t); 480 s->peer->peer = s; 481 } 482 s->ready(s); 483 } 484 } 485 break; 486 487 case A_CLSE: /* CLOSE(local-id, remote-id, "") */ 488 if(t->connection_state != CS_OFFLINE) { 489 if((s = find_local_socket(p->msg.arg1))) { 490 s->close(s); 491 } 492 } 493 break; 494 495 case A_WRTE: 496 if(t->connection_state != CS_OFFLINE) { 497 if((s = find_local_socket(p->msg.arg1))) { 498 unsigned rid = p->msg.arg0; 499 p->len = p->msg.data_length; 500 501 if(s->enqueue(s, p) == 0) { 502 D("Enqueue the socket\n"); 503 send_ready(s->id, rid, t); 504 } 505 return; 506 } 507 } 508 break; 509 510 default: 511 printf("handle_packet: what is %08x?!\n", p->msg.command); 512 } 513 514 put_apacket(p); 515} 516 517alistener listener_list = { 518 .next = &listener_list, 519 .prev = &listener_list, 520}; 521 522static void ss_listener_event_func(int _fd, unsigned ev, void *_l) 523{ 524 asocket *s; 525 526 if(ev & FDE_READ) { 527 struct sockaddr addr; 528 socklen_t alen; 529 int fd; 530 531 alen = sizeof(addr); 532 fd = adb_socket_accept(_fd, &addr, &alen); 533 if(fd < 0) return; 534 535 adb_socket_setbufsize(fd, CHUNK_SIZE); 536 537 s = create_local_socket(fd); 538 if(s) { 539 connect_to_smartsocket(s); 540 return; 541 } 542 543 adb_close(fd); 544 } 545} 546 547static void listener_event_func(int _fd, unsigned ev, void *_l) 548{ 549 alistener *l = _l; 550 asocket *s; 551 552 if(ev & FDE_READ) { 553 struct sockaddr addr; 554 socklen_t alen; 555 int fd; 556 557 alen = sizeof(addr); 558 fd = adb_socket_accept(_fd, &addr, &alen); 559 if(fd < 0) return; 560 561 s = create_local_socket(fd); 562 if(s) { 563 s->transport = l->transport; 564 connect_to_remote(s, l->connect_to); 565 return; 566 } 567 568 adb_close(fd); 569 } 570} 571 572static void free_listener(alistener* l) 573{ 574 if (l->next) { 575 l->next->prev = l->prev; 576 l->prev->next = l->next; 577 l->next = l->prev = l; 578 } 579 580 // closes the corresponding fd 581 fdevent_remove(&l->fde); 582 583 if (l->local_name) 584 free((char*)l->local_name); 585 586 if (l->connect_to) 587 free((char*)l->connect_to); 588 589 if (l->transport) { 590 remove_transport_disconnect(l->transport, &l->disconnect); 591 } 592 free(l); 593} 594 595static void listener_disconnect(void* _l, atransport* t) 596{ 597 alistener* l = _l; 598 599 free_listener(l); 600} 601 602int local_name_to_fd(const char *name) 603{ 604 int port; 605 606 if(!strncmp("tcp:", name, 4)){ 607 int ret; 608 port = atoi(name + 4); 609 ret = socket_loopback_server(port, SOCK_STREAM); 610 return ret; 611 } 612#ifndef HAVE_WIN32_IPC /* no Unix-domain sockets on Win32 */ 613 // It's non-sensical to support the "reserved" space on the adb host side 614 if(!strncmp(name, "local:", 6)) { 615 return socket_local_server(name + 6, 616 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 617 } else if(!strncmp(name, "localabstract:", 14)) { 618 return socket_local_server(name + 14, 619 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 620 } else if(!strncmp(name, "localfilesystem:", 16)) { 621 return socket_local_server(name + 16, 622 ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM); 623 } 624 625#endif 626 printf("unknown local portname '%s'\n", name); 627 return -1; 628} 629 630static int remove_listener(const char *local_name, const char *connect_to, atransport* transport) 631{ 632 alistener *l; 633 634 for (l = listener_list.next; l != &listener_list; l = l->next) { 635 if (!strcmp(local_name, l->local_name) && 636 !strcmp(connect_to, l->connect_to) && 637 l->transport && l->transport == transport) { 638 639 listener_disconnect(l, transport); 640 return 0; 641 } 642 } 643 644 return -1; 645} 646 647static int install_listener(const char *local_name, const char *connect_to, atransport* transport) 648{ 649 alistener *l; 650 651 //printf("install_listener('%s','%s')\n", local_name, connect_to); 652 653 for(l = listener_list.next; l != &listener_list; l = l->next){ 654 if(strcmp(local_name, l->local_name) == 0) { 655 char *cto; 656 657 /* can't repurpose a smartsocket */ 658 if(l->connect_to[0] == '*') { 659 return -1; 660 } 661 662 cto = strdup(connect_to); 663 if(cto == 0) { 664 return -1; 665 } 666 667 //printf("rebinding '%s' to '%s'\n", local_name, connect_to); 668 free((void*) l->connect_to); 669 l->connect_to = cto; 670 if (l->transport != transport) { 671 remove_transport_disconnect(l->transport, &l->disconnect); 672 l->transport = transport; 673 add_transport_disconnect(l->transport, &l->disconnect); 674 } 675 return 0; 676 } 677 } 678 679 if((l = calloc(1, sizeof(alistener))) == 0) goto nomem; 680 if((l->local_name = strdup(local_name)) == 0) goto nomem; 681 if((l->connect_to = strdup(connect_to)) == 0) goto nomem; 682 683 684 l->fd = local_name_to_fd(local_name); 685 if(l->fd < 0) { 686 free((void*) l->local_name); 687 free((void*) l->connect_to); 688 free(l); 689 printf("cannot bind '%s'\n", local_name); 690 return -2; 691 } 692 693 close_on_exec(l->fd); 694 if(!strcmp(l->connect_to, "*smartsocket*")) { 695 fdevent_install(&l->fde, l->fd, ss_listener_event_func, l); 696 } else { 697 fdevent_install(&l->fde, l->fd, listener_event_func, l); 698 } 699 fdevent_set(&l->fde, FDE_READ); 700 701 l->next = &listener_list; 702 l->prev = listener_list.prev; 703 l->next->prev = l; 704 l->prev->next = l; 705 l->transport = transport; 706 707 if (transport) { 708 l->disconnect.opaque = l; 709 l->disconnect.func = listener_disconnect; 710 add_transport_disconnect(transport, &l->disconnect); 711 } 712 return 0; 713 714nomem: 715 fatal("cannot allocate listener"); 716 return 0; 717} 718 719#ifdef HAVE_WIN32_PROC 720static BOOL WINAPI ctrlc_handler(DWORD type) 721{ 722 exit(STATUS_CONTROL_C_EXIT); 723 return TRUE; 724} 725#endif 726 727static void adb_cleanup(void) 728{ 729 usb_cleanup(); 730} 731 732void start_logging(void) 733{ 734#ifdef HAVE_WIN32_PROC 735 char temp[ MAX_PATH ]; 736 FILE* fnul; 737 FILE* flog; 738 739 GetTempPath( sizeof(temp) - 8, temp ); 740 strcat( temp, "adb.log" ); 741 742 /* Win32 specific redirections */ 743 fnul = fopen( "NUL", "rt" ); 744 if (fnul != NULL) 745 stdin[0] = fnul[0]; 746 747 flog = fopen( temp, "at" ); 748 if (flog == NULL) 749 flog = fnul; 750 751 setvbuf( flog, NULL, _IONBF, 0 ); 752 753 stdout[0] = flog[0]; 754 stderr[0] = flog[0]; 755 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 756#else 757 int fd; 758 759 fd = unix_open("/dev/null", O_RDONLY); 760 dup2(fd, 0); 761 adb_close(fd); 762 763 fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640); 764 if(fd < 0) { 765 fd = unix_open("/dev/null", O_WRONLY); 766 } 767 dup2(fd, 1); 768 dup2(fd, 2); 769 adb_close(fd); 770 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 771#endif 772} 773 774#if !ADB_HOST 775void start_device_log(void) 776{ 777 int fd; 778 char path[PATH_MAX]; 779 struct tm now; 780 time_t t; 781 char value[PROPERTY_VALUE_MAX]; 782 783 // read the trace mask from persistent property persist.adb.trace_mask 784 // give up if the property is not set or cannot be parsed 785 property_get("persist.adb.trace_mask", value, ""); 786 if (sscanf(value, "%x", &adb_trace_mask) != 1) 787 return; 788 789 adb_mkdir("/data/adb", 0775); 790 tzset(); 791 time(&t); 792 localtime_r(&t, &now); 793 strftime(path, sizeof(path), 794 "/data/adb/adb-%Y-%m-%d-%H-%M-%S.txt", 795 &now); 796 fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640); 797 if (fd < 0) 798 return; 799 800 // redirect stdout and stderr to the log file 801 dup2(fd, 1); 802 dup2(fd, 2); 803 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 804 adb_close(fd); 805 806 fd = unix_open("/dev/null", O_RDONLY); 807 dup2(fd, 0); 808 adb_close(fd); 809} 810#endif 811 812#if ADB_HOST 813int launch_server(int server_port) 814{ 815#ifdef HAVE_WIN32_PROC 816 /* we need to start the server in the background */ 817 /* we create a PIPE that will be used to wait for the server's "OK" */ 818 /* message since the pipe handles must be inheritable, we use a */ 819 /* security attribute */ 820 HANDLE pipe_read, pipe_write; 821 SECURITY_ATTRIBUTES sa; 822 STARTUPINFO startup; 823 PROCESS_INFORMATION pinfo; 824 char program_path[ MAX_PATH ]; 825 int ret; 826 827 sa.nLength = sizeof(sa); 828 sa.lpSecurityDescriptor = NULL; 829 sa.bInheritHandle = TRUE; 830 831 /* create pipe, and ensure its read handle isn't inheritable */ 832 ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 ); 833 if (!ret) { 834 fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() ); 835 return -1; 836 } 837 838 SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 ); 839 840 ZeroMemory( &startup, sizeof(startup) ); 841 startup.cb = sizeof(startup); 842 startup.hStdInput = GetStdHandle( STD_INPUT_HANDLE ); 843 startup.hStdOutput = pipe_write; 844 startup.hStdError = GetStdHandle( STD_ERROR_HANDLE ); 845 startup.dwFlags = STARTF_USESTDHANDLES; 846 847 ZeroMemory( &pinfo, sizeof(pinfo) ); 848 849 /* get path of current program */ 850 GetModuleFileName( NULL, program_path, sizeof(program_path) ); 851 852 ret = CreateProcess( 853 program_path, /* program path */ 854 "adb fork-server server", 855 /* the fork-server argument will set the 856 debug = 2 in the child */ 857 NULL, /* process handle is not inheritable */ 858 NULL, /* thread handle is not inheritable */ 859 TRUE, /* yes, inherit some handles */ 860 DETACHED_PROCESS, /* the new process doesn't have a console */ 861 NULL, /* use parent's environment block */ 862 NULL, /* use parent's starting directory */ 863 &startup, /* startup info, i.e. std handles */ 864 &pinfo ); 865 866 CloseHandle( pipe_write ); 867 868 if (!ret) { 869 fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() ); 870 CloseHandle( pipe_read ); 871 return -1; 872 } 873 874 CloseHandle( pinfo.hProcess ); 875 CloseHandle( pinfo.hThread ); 876 877 /* wait for the "OK\n" message */ 878 { 879 char temp[3]; 880 DWORD count; 881 882 ret = ReadFile( pipe_read, temp, 3, &count, NULL ); 883 CloseHandle( pipe_read ); 884 if ( !ret ) { 885 fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() ); 886 return -1; 887 } 888 if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 889 fprintf(stderr, "ADB server didn't ACK\n" ); 890 return -1; 891 } 892 } 893#elif defined(HAVE_FORKEXEC) 894 char path[PATH_MAX]; 895 int fd[2]; 896 897 // set up a pipe so the child can tell us when it is ready. 898 // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child. 899 if (pipe(fd)) { 900 fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno); 901 return -1; 902 } 903 get_my_path(path, PATH_MAX); 904 pid_t pid = fork(); 905 if(pid < 0) return -1; 906 907 if (pid == 0) { 908 // child side of the fork 909 910 // redirect stderr to the pipe 911 // we use stderr instead of stdout due to stdout's buffering behavior. 912 adb_close(fd[0]); 913 dup2(fd[1], STDERR_FILENO); 914 adb_close(fd[1]); 915 916 // child process 917 int result = execl(path, "adb", "fork-server", "server", NULL); 918 // this should not return 919 fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno); 920 } else { 921 // parent side of the fork 922 923 char temp[3]; 924 925 temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C'; 926 // wait for the "OK\n" message 927 adb_close(fd[1]); 928 int ret = adb_read(fd[0], temp, 3); 929 int saved_errno = errno; 930 adb_close(fd[0]); 931 if (ret < 0) { 932 fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", saved_errno); 933 return -1; 934 } 935 if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 936 fprintf(stderr, "ADB server didn't ACK\n" ); 937 return -1; 938 } 939 940 setsid(); 941 } 942#else 943#error "cannot implement background server start on this platform" 944#endif 945 return 0; 946} 947#endif 948 949/* Constructs a local name of form tcp:port. 950 * target_str points to the target string, it's content will be overwritten. 951 * target_size is the capacity of the target string. 952 * server_port is the port number to use for the local name. 953 */ 954void build_local_name(char* target_str, size_t target_size, int server_port) 955{ 956 snprintf(target_str, target_size, "tcp:%d", server_port); 957} 958 959#if !ADB_HOST 960static int should_drop_privileges() { 961#ifndef ALLOW_ADBD_ROOT 962 return 1; 963#else /* ALLOW_ADBD_ROOT */ 964 int secure = 0; 965 char value[PROPERTY_VALUE_MAX]; 966 967 /* run adbd in secure mode if ro.secure is set and 968 ** we are not in the emulator 969 */ 970 property_get("ro.kernel.qemu", value, ""); 971 if (strcmp(value, "1") != 0) { 972 property_get("ro.secure", value, "1"); 973 if (strcmp(value, "1") == 0) { 974 // don't run as root if ro.secure is set... 975 secure = 1; 976 977 // ... except we allow running as root in userdebug builds if the 978 // service.adb.root property has been set by the "adb root" command 979 property_get("ro.debuggable", value, ""); 980 if (strcmp(value, "1") == 0) { 981 property_get("service.adb.root", value, ""); 982 if (strcmp(value, "1") == 0) { 983 secure = 0; 984 } 985 } 986 } 987 } 988 return secure; 989#endif /* ALLOW_ADBD_ROOT */ 990} 991#endif /* !ADB_HOST */ 992 993int adb_main(int is_daemon, int server_port) 994{ 995#if !ADB_HOST 996 int port; 997 char value[PROPERTY_VALUE_MAX]; 998 999 umask(000); 1000#endif 1001 1002 atexit(adb_cleanup); 1003#ifdef HAVE_WIN32_PROC 1004 SetConsoleCtrlHandler( ctrlc_handler, TRUE ); 1005#elif defined(HAVE_FORKEXEC) 1006 // No SIGCHLD. Let the service subproc handle its children. 1007 signal(SIGPIPE, SIG_IGN); 1008#endif 1009 1010 init_transport_registration(); 1011 1012 1013#if ADB_HOST 1014 HOST = 1; 1015 usb_vendors_init(); 1016 usb_init(); 1017 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 1018 1019 char local_name[30]; 1020 build_local_name(local_name, sizeof(local_name), server_port); 1021 if(install_listener(local_name, "*smartsocket*", NULL)) { 1022 exit(1); 1023 } 1024#else 1025 1026 /* don't listen on a port (default 5037) if running in secure mode */ 1027 /* don't run as root if we are running in secure mode */ 1028 if (should_drop_privileges()) { 1029 struct __user_cap_header_struct header; 1030 struct __user_cap_data_struct cap; 1031 1032 if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0) { 1033 exit(1); 1034 } 1035 1036 /* add extra groups: 1037 ** AID_ADB to access the USB driver 1038 ** AID_LOG to read system logs (adb logcat) 1039 ** AID_INPUT to diagnose input issues (getevent) 1040 ** AID_INET to diagnose network issues (netcfg, ping) 1041 ** AID_GRAPHICS to access the frame buffer 1042 ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump) 1043 ** AID_SDCARD_R to allow reading from the SD card 1044 ** AID_SDCARD_RW to allow writing to the SD card 1045 ** AID_MOUNT to allow unmounting the SD card before rebooting 1046 ** AID_NET_BW_STATS to read out qtaguid statistics 1047 */ 1048 gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS, 1049 AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_R, AID_SDCARD_RW, 1050 AID_MOUNT, AID_NET_BW_STATS }; 1051 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 1052 exit(1); 1053 } 1054 1055 /* then switch user and group to "shell" */ 1056 if (setgid(AID_SHELL) != 0) { 1057 exit(1); 1058 } 1059 if (setuid(AID_SHELL) != 0) { 1060 exit(1); 1061 } 1062 1063 /* set CAP_SYS_BOOT capability, so "adb reboot" will succeed */ 1064 header.version = _LINUX_CAPABILITY_VERSION; 1065 header.pid = 0; 1066 cap.effective = cap.permitted = (1 << CAP_SYS_BOOT); 1067 cap.inheritable = 0; 1068 capset(&header, &cap); 1069 1070 D("Local port disabled\n"); 1071 } else { 1072 char local_name[30]; 1073 build_local_name(local_name, sizeof(local_name), server_port); 1074 if(install_listener(local_name, "*smartsocket*", NULL)) { 1075 exit(1); 1076 } 1077 } 1078 1079 /* for the device, start the usb transport if the 1080 ** android usb device exists and the "service.adb.tcp.port" and 1081 ** "persist.adb.tcp.port" properties are not set. 1082 ** Otherwise start the network transport. 1083 */ 1084 property_get("service.adb.tcp.port", value, ""); 1085 if (!value[0]) 1086 property_get("persist.adb.tcp.port", value, ""); 1087 if (sscanf(value, "%d", &port) == 1 && port > 0) { 1088 // listen on TCP port specified by service.adb.tcp.port property 1089 local_init(port); 1090 } else if (access("/dev/android_adb", F_OK) == 0) { 1091 // listen on USB 1092 usb_init(); 1093 } else { 1094 // listen on default port 1095 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 1096 } 1097 D("adb_main(): pre init_jdwp()\n"); 1098 init_jdwp(); 1099 D("adb_main(): post init_jdwp()\n"); 1100#endif 1101 1102 if (is_daemon) 1103 { 1104 // inform our parent that we are up and running. 1105#ifdef HAVE_WIN32_PROC 1106 DWORD count; 1107 WriteFile( GetStdHandle( STD_OUTPUT_HANDLE ), "OK\n", 3, &count, NULL ); 1108#elif defined(HAVE_FORKEXEC) 1109 fprintf(stderr, "OK\n"); 1110#endif 1111 start_logging(); 1112 } 1113 D("Event loop starting\n"); 1114 1115 fdevent_loop(); 1116 1117 usb_cleanup(); 1118 1119 return 0; 1120} 1121 1122#if ADB_HOST 1123void connect_device(char* host, char* buffer, int buffer_size) 1124{ 1125 int port, fd; 1126 char* portstr = strchr(host, ':'); 1127 char hostbuf[100]; 1128 char serial[100]; 1129 1130 strncpy(hostbuf, host, sizeof(hostbuf) - 1); 1131 if (portstr) { 1132 if (portstr - host >= (ptrdiff_t)sizeof(hostbuf)) { 1133 snprintf(buffer, buffer_size, "bad host name %s", host); 1134 return; 1135 } 1136 // zero terminate the host at the point we found the colon 1137 hostbuf[portstr - host] = 0; 1138 if (sscanf(portstr + 1, "%d", &port) == 0) { 1139 snprintf(buffer, buffer_size, "bad port number %s", portstr); 1140 return; 1141 } 1142 } else { 1143 port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT; 1144 } 1145 1146 snprintf(serial, sizeof(serial), "%s:%d", hostbuf, port); 1147 if (find_transport(serial)) { 1148 snprintf(buffer, buffer_size, "already connected to %s", serial); 1149 return; 1150 } 1151 1152 fd = socket_network_client(hostbuf, port, SOCK_STREAM); 1153 if (fd < 0) { 1154 snprintf(buffer, buffer_size, "unable to connect to %s:%d", host, port); 1155 return; 1156 } 1157 1158 D("client: connected on remote on fd %d\n", fd); 1159 close_on_exec(fd); 1160 disable_tcp_nagle(fd); 1161 register_socket_transport(fd, serial, port, 0); 1162 snprintf(buffer, buffer_size, "connected to %s", serial); 1163} 1164 1165void connect_emulator(char* port_spec, char* buffer, int buffer_size) 1166{ 1167 char* port_separator = strchr(port_spec, ','); 1168 if (!port_separator) { 1169 snprintf(buffer, buffer_size, 1170 "unable to parse '%s' as <console port>,<adb port>", 1171 port_spec); 1172 return; 1173 } 1174 1175 // Zero-terminate console port and make port_separator point to 2nd port. 1176 *port_separator++ = 0; 1177 int console_port = strtol(port_spec, NULL, 0); 1178 int adb_port = strtol(port_separator, NULL, 0); 1179 if (!(console_port > 0 && adb_port > 0)) { 1180 *(port_separator - 1) = ','; 1181 snprintf(buffer, buffer_size, 1182 "Invalid port numbers: Expected positive numbers, got '%s'", 1183 port_spec); 1184 return; 1185 } 1186 1187 /* Check if the emulator is already known. 1188 * Note: There's a small but harmless race condition here: An emulator not 1189 * present just yet could be registered by another invocation right 1190 * after doing this check here. However, local_connect protects 1191 * against double-registration too. From here, a better error message 1192 * can be produced. In the case of the race condition, the very specific 1193 * error message won't be shown, but the data doesn't get corrupted. */ 1194 atransport* known_emulator = find_emulator_transport_by_adb_port(adb_port); 1195 if (known_emulator != NULL) { 1196 snprintf(buffer, buffer_size, 1197 "Emulator on port %d already registered.", adb_port); 1198 return; 1199 } 1200 1201 /* Check if more emulators can be registered. Similar unproblematic 1202 * race condition as above. */ 1203 int candidate_slot = get_available_local_transport_index(); 1204 if (candidate_slot < 0) { 1205 snprintf(buffer, buffer_size, "Cannot accept more emulators."); 1206 return; 1207 } 1208 1209 /* Preconditions met, try to connect to the emulator. */ 1210 if (!local_connect_arbitrary_ports(console_port, adb_port)) { 1211 snprintf(buffer, buffer_size, 1212 "Connected to emulator on ports %d,%d", console_port, adb_port); 1213 } else { 1214 snprintf(buffer, buffer_size, 1215 "Could not connect to emulator on ports %d,%d", 1216 console_port, adb_port); 1217 } 1218} 1219#endif 1220 1221int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s) 1222{ 1223 atransport *transport = NULL; 1224 char buf[4096]; 1225 1226 if(!strcmp(service, "kill")) { 1227 fprintf(stderr,"adb server killed by remote request\n"); 1228 fflush(stdout); 1229 adb_write(reply_fd, "OKAY", 4); 1230 usb_cleanup(); 1231 exit(0); 1232 } 1233 1234#if ADB_HOST 1235 // "transport:" is used for switching transport with a specified serial number 1236 // "transport-usb:" is used for switching transport to the only USB transport 1237 // "transport-local:" is used for switching transport to the only local transport 1238 // "transport-any:" is used for switching transport to the only transport 1239 if (!strncmp(service, "transport", strlen("transport"))) { 1240 char* error_string = "unknown failure"; 1241 transport_type type = kTransportAny; 1242 1243 if (!strncmp(service, "transport-usb", strlen("transport-usb"))) { 1244 type = kTransportUsb; 1245 } else if (!strncmp(service, "transport-local", strlen("transport-local"))) { 1246 type = kTransportLocal; 1247 } else if (!strncmp(service, "transport-any", strlen("transport-any"))) { 1248 type = kTransportAny; 1249 } else if (!strncmp(service, "transport:", strlen("transport:"))) { 1250 service += strlen("transport:"); 1251 serial = service; 1252 } 1253 1254 transport = acquire_one_transport(CS_ANY, type, serial, &error_string); 1255 1256 if (transport) { 1257 s->transport = transport; 1258 adb_write(reply_fd, "OKAY", 4); 1259 } else { 1260 sendfailmsg(reply_fd, error_string); 1261 } 1262 return 1; 1263 } 1264 1265 // return a list of all connected devices 1266 if (!strncmp(service, "devices", 7)) { 1267 char buffer[4096]; 1268 int use_long = !strcmp(service+7, "-l"); 1269 if (use_long || service[7] == 0) { 1270 memset(buf, 0, sizeof(buf)); 1271 memset(buffer, 0, sizeof(buffer)); 1272 D("Getting device list \n"); 1273 list_transports(buffer, sizeof(buffer), use_long); 1274 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer); 1275 D("Wrote device list \n"); 1276 writex(reply_fd, buf, strlen(buf)); 1277 return 0; 1278 } 1279 } 1280 1281 // add a new TCP transport, device or emulator 1282 if (!strncmp(service, "connect:", 8)) { 1283 char buffer[4096]; 1284 char* host = service + 8; 1285 if (!strncmp(host, "emu:", 4)) { 1286 connect_emulator(host + 4, buffer, sizeof(buffer)); 1287 } else { 1288 connect_device(host, buffer, sizeof(buffer)); 1289 } 1290 // Send response for emulator and device 1291 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer); 1292 writex(reply_fd, buf, strlen(buf)); 1293 return 0; 1294 } 1295 1296 // remove TCP transport 1297 if (!strncmp(service, "disconnect:", 11)) { 1298 char buffer[4096]; 1299 memset(buffer, 0, sizeof(buffer)); 1300 char* serial = service + 11; 1301 if (serial[0] == 0) { 1302 // disconnect from all TCP devices 1303 unregister_all_tcp_transports(); 1304 } else { 1305 char hostbuf[100]; 1306 // assume port 5555 if no port is specified 1307 if (!strchr(serial, ':')) { 1308 snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial); 1309 serial = hostbuf; 1310 } 1311 atransport *t = find_transport(serial); 1312 1313 if (t) { 1314 unregister_transport(t); 1315 } else { 1316 snprintf(buffer, sizeof(buffer), "No such device %s", serial); 1317 } 1318 } 1319 1320 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer); 1321 writex(reply_fd, buf, strlen(buf)); 1322 return 0; 1323 } 1324 1325 // returns our value for ADB_SERVER_VERSION 1326 if (!strcmp(service, "version")) { 1327 char version[12]; 1328 snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION); 1329 snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version); 1330 writex(reply_fd, buf, strlen(buf)); 1331 return 0; 1332 } 1333 1334 if(!strncmp(service,"get-serialno",strlen("get-serialno"))) { 1335 char *out = "unknown"; 1336 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1337 if (transport && transport->serial) { 1338 out = transport->serial; 1339 } 1340 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 1341 writex(reply_fd, buf, strlen(buf)); 1342 return 0; 1343 } 1344 if(!strncmp(service,"get-devpath",strlen("get-devpath"))) { 1345 char *out = "unknown"; 1346 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1347 if (transport && transport->devpath) { 1348 out = transport->devpath; 1349 } 1350 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 1351 writex(reply_fd, buf, strlen(buf)); 1352 return 0; 1353 } 1354 // indicates a new emulator instance has started 1355 if (!strncmp(service,"emulator:",9)) { 1356 int port = atoi(service+9); 1357 local_connect(port); 1358 /* we don't even need to send a reply */ 1359 return 0; 1360 } 1361#endif // ADB_HOST 1362 1363 if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) { 1364 char *local, *remote, *err; 1365 int r; 1366 atransport *transport; 1367 1368 int createForward = strncmp(service,"kill",4); 1369 1370 local = service + (createForward ? 8 : 12); 1371 remote = strchr(local,';'); 1372 if(remote == 0) { 1373 sendfailmsg(reply_fd, "malformed forward spec"); 1374 return 0; 1375 } 1376 1377 *remote++ = 0; 1378 if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){ 1379 sendfailmsg(reply_fd, "malformed forward spec"); 1380 return 0; 1381 } 1382 1383 transport = acquire_one_transport(CS_ANY, ttype, serial, &err); 1384 if (!transport) { 1385 sendfailmsg(reply_fd, err); 1386 return 0; 1387 } 1388 1389 if (createForward) { 1390 r = install_listener(local, remote, transport); 1391 } else { 1392 r = remove_listener(local, remote, transport); 1393 } 1394 if(r == 0) { 1395 /* 1st OKAY is connect, 2nd OKAY is status */ 1396 writex(reply_fd, "OKAYOKAY", 8); 1397 return 0; 1398 } 1399 1400 if (createForward) { 1401 sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket"); 1402 } else { 1403 sendfailmsg(reply_fd, "cannot remove listener"); 1404 } 1405 return 0; 1406 } 1407 1408 if(!strncmp(service,"get-state",strlen("get-state"))) { 1409 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1410 char *state = connection_state_name(transport); 1411 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state); 1412 writex(reply_fd, buf, strlen(buf)); 1413 return 0; 1414 } 1415 return -1; 1416} 1417 1418#if !ADB_HOST 1419int recovery_mode = 0; 1420#endif 1421 1422int main(int argc, char **argv) 1423{ 1424#if ADB_HOST 1425 adb_sysdeps_init(); 1426 adb_trace_init(); 1427 D("Handling commandline()\n"); 1428 return adb_commandline(argc - 1, argv + 1); 1429#else 1430 /* If adbd runs inside the emulator this will enable adb tracing via 1431 * adb-debug qemud service in the emulator. */ 1432 adb_qemu_trace_init(); 1433 if((argc > 1) && (!strcmp(argv[1],"recovery"))) { 1434 adb_device_banner = "recovery"; 1435 recovery_mode = 1; 1436 } 1437 1438 start_device_log(); 1439 D("Handling main()\n"); 1440 return adb_main(0, DEFAULT_ADB_PORT); 1441#endif 1442} 1443