adb.c revision 885342a0f2c834a6b680284047c47c9d04b32565
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#include <sys/mount.h> 39#else 40#include "usb_vendors.h" 41#endif 42 43#if ADB_TRACE 44ADB_MUTEX_DEFINE( D_lock ); 45#endif 46 47int HOST = 0; 48 49#if !ADB_HOST 50static const char *adb_device_banner = "device"; 51#endif 52 53void fatal(const char *fmt, ...) 54{ 55 va_list ap; 56 va_start(ap, fmt); 57 fprintf(stderr, "error: "); 58 vfprintf(stderr, fmt, ap); 59 fprintf(stderr, "\n"); 60 va_end(ap); 61 exit(-1); 62} 63 64void fatal_errno(const char *fmt, ...) 65{ 66 va_list ap; 67 va_start(ap, fmt); 68 fprintf(stderr, "error: %s: ", strerror(errno)); 69 vfprintf(stderr, fmt, ap); 70 fprintf(stderr, "\n"); 71 va_end(ap); 72 exit(-1); 73} 74 75int adb_trace_mask; 76 77/* read a comma/space/colum/semi-column separated list of tags 78 * from the ADB_TRACE environment variable and build the trace 79 * mask from it. note that '1' and 'all' are special cases to 80 * enable all tracing 81 */ 82void adb_trace_init(void) 83{ 84 const char* p = getenv("ADB_TRACE"); 85 const char* q; 86 87 static const struct { 88 const char* tag; 89 int flag; 90 } tags[] = { 91 { "1", 0 }, 92 { "all", 0 }, 93 { "adb", TRACE_ADB }, 94 { "sockets", TRACE_SOCKETS }, 95 { "packets", TRACE_PACKETS }, 96 { "rwx", TRACE_RWX }, 97 { "usb", TRACE_USB }, 98 { "sync", TRACE_SYNC }, 99 { "sysdeps", TRACE_SYSDEPS }, 100 { "transport", TRACE_TRANSPORT }, 101 { "jdwp", TRACE_JDWP }, 102 { "services", TRACE_SERVICES }, 103 { NULL, 0 } 104 }; 105 106 if (p == NULL) 107 return; 108 109 /* use a comma/column/semi-colum/space separated list */ 110 while (*p) { 111 int len, tagn; 112 113 q = strpbrk(p, " ,:;"); 114 if (q == NULL) { 115 q = p + strlen(p); 116 } 117 len = q - p; 118 119 for (tagn = 0; tags[tagn].tag != NULL; tagn++) 120 { 121 int taglen = strlen(tags[tagn].tag); 122 123 if (len == taglen && !memcmp(tags[tagn].tag, p, len) ) 124 { 125 int flag = tags[tagn].flag; 126 if (flag == 0) { 127 adb_trace_mask = ~0; 128 return; 129 } 130 adb_trace_mask |= (1 << flag); 131 break; 132 } 133 } 134 p = q; 135 if (*p) 136 p++; 137 } 138} 139 140#if !ADB_HOST 141/* 142 * Implements ADB tracing inside the emulator. 143 */ 144 145#include <stdarg.h> 146 147/* 148 * Redefine open and write for qemu_pipe.h that contains inlined references 149 * to those routines. We will redifine them back after qemu_pipe.h inclusion. 150 */ 151 152#undef open 153#undef write 154#define open adb_open 155#define write adb_write 156#include <hardware/qemu_pipe.h> 157#undef open 158#undef write 159#define open ___xxx_open 160#define write ___xxx_write 161 162/* A handle to adb-debug qemud service in the emulator. */ 163int adb_debug_qemu = -1; 164 165/* Initializes connection with the adb-debug qemud service in the emulator. */ 166static int adb_qemu_trace_init(void) 167{ 168 char con_name[32]; 169 170 if (adb_debug_qemu >= 0) { 171 return 0; 172 } 173 174 /* adb debugging QEMUD service connection request. */ 175 snprintf(con_name, sizeof(con_name), "qemud:adb-debug"); 176 adb_debug_qemu = qemu_pipe_open(con_name); 177 return (adb_debug_qemu >= 0) ? 0 : -1; 178} 179 180void adb_qemu_trace(const char* fmt, ...) 181{ 182 va_list args; 183 va_start(args, fmt); 184 char msg[1024]; 185 186 if (adb_debug_qemu >= 0) { 187 vsnprintf(msg, sizeof(msg), fmt, args); 188 adb_write(adb_debug_qemu, msg, strlen(msg)); 189 } 190} 191#endif /* !ADB_HOST */ 192 193apacket *get_apacket(void) 194{ 195 apacket *p = malloc(sizeof(apacket)); 196 if(p == 0) fatal("failed to allocate an apacket"); 197 memset(p, 0, sizeof(apacket) - MAX_PAYLOAD); 198 return p; 199} 200 201void put_apacket(apacket *p) 202{ 203 free(p); 204} 205 206void handle_online(void) 207{ 208 D("adb: online\n"); 209} 210 211void handle_offline(atransport *t) 212{ 213 D("adb: offline\n"); 214 //Close the associated usb 215 run_transport_disconnects(t); 216} 217 218#if TRACE_PACKETS 219#define DUMPMAX 32 220void print_packet(const char *label, apacket *p) 221{ 222 char *tag; 223 char *x; 224 unsigned count; 225 226 switch(p->msg.command){ 227 case A_SYNC: tag = "SYNC"; break; 228 case A_CNXN: tag = "CNXN" ; break; 229 case A_OPEN: tag = "OPEN"; break; 230 case A_OKAY: tag = "OKAY"; break; 231 case A_CLSE: tag = "CLSE"; break; 232 case A_WRTE: tag = "WRTE"; break; 233 default: tag = "????"; break; 234 } 235 236 fprintf(stderr, "%s: %s %08x %08x %04x \"", 237 label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length); 238 count = p->msg.data_length; 239 x = (char*) p->data; 240 if(count > DUMPMAX) { 241 count = DUMPMAX; 242 tag = "\n"; 243 } else { 244 tag = "\"\n"; 245 } 246 while(count-- > 0){ 247 if((*x >= ' ') && (*x < 127)) { 248 fputc(*x, stderr); 249 } else { 250 fputc('.', stderr); 251 } 252 x++; 253 } 254 fprintf(stderr, tag); 255} 256#endif 257 258static void send_ready(unsigned local, unsigned remote, atransport *t) 259{ 260 D("Calling send_ready \n"); 261 apacket *p = get_apacket(); 262 p->msg.command = A_OKAY; 263 p->msg.arg0 = local; 264 p->msg.arg1 = remote; 265 send_packet(p, t); 266} 267 268static void send_close(unsigned local, unsigned remote, atransport *t) 269{ 270 D("Calling send_close \n"); 271 apacket *p = get_apacket(); 272 p->msg.command = A_CLSE; 273 p->msg.arg0 = local; 274 p->msg.arg1 = remote; 275 send_packet(p, t); 276} 277 278static size_t fill_connect_data(char *buf, size_t bufsize) 279{ 280#if ADB_HOST 281 return snprintf(buf, bufsize, "host::") + 1; 282#else 283 static const char *cnxn_props[] = { 284 "ro.product.name", 285 "ro.product.model", 286 "ro.product.device", 287 }; 288 static const int num_cnxn_props = ARRAY_SIZE(cnxn_props); 289 int i; 290 size_t remaining = bufsize; 291 size_t len; 292 293 len = snprintf(buf, remaining, "%s::", adb_device_banner); 294 remaining -= len; 295 buf += len; 296 for (i = 0; i < num_cnxn_props; i++) { 297 char value[PROPERTY_VALUE_MAX]; 298 property_get(cnxn_props[i], value, ""); 299 len = snprintf(buf, remaining, "%s=%s;", cnxn_props[i], value); 300 remaining -= len; 301 buf += len; 302 } 303 304 return bufsize - remaining + 1; 305#endif 306} 307 308static void send_connect(atransport *t) 309{ 310 D("Calling send_connect \n"); 311 apacket *cp = get_apacket(); 312 cp->msg.command = A_CNXN; 313 cp->msg.arg0 = A_VERSION; 314 cp->msg.arg1 = MAX_PAYLOAD; 315 cp->msg.data_length = fill_connect_data((char *)cp->data, 316 sizeof(cp->data)); 317 send_packet(cp, t); 318#if ADB_HOST 319 /* XXX why sleep here? */ 320 // allow the device some time to respond to the connect message 321 adb_sleep_ms(1000); 322#endif 323} 324 325static char *connection_state_name(atransport *t) 326{ 327 if (t == NULL) { 328 return "unknown"; 329 } 330 331 switch(t->connection_state) { 332 case CS_BOOTLOADER: 333 return "bootloader"; 334 case CS_DEVICE: 335 return "device"; 336 case CS_OFFLINE: 337 return "offline"; 338 default: 339 return "unknown"; 340 } 341} 342 343/* qual_overwrite is used to overwrite a qualifier string. dst is a 344 * pointer to a char pointer. It is assumed that if *dst is non-NULL, it 345 * was malloc'ed and needs to freed. *dst will be set to a dup of src. 346 */ 347static void qual_overwrite(char **dst, const char *src) 348{ 349 if (!dst) 350 return; 351 352 free(*dst); 353 *dst = NULL; 354 355 if (!src || !*src) 356 return; 357 358 *dst = strdup(src); 359} 360 361void parse_banner(char *banner, atransport *t) 362{ 363 static const char *prop_seps = ";"; 364 static const char key_val_sep = '='; 365 char *cp; 366 char *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 = adb_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 = adb_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 */ 992 993#if !ADB_HOST 994/* Give ourselves access to external storage, which is otherwise protected. */ 995static void mount_external_storage(void) { 996 // Create private mount namespace for our process 997 if (unshare(CLONE_NEWNS) == -1) { 998 fatal_errno("Failed to unshare()"); 999 } 1000 1001 // Mark rootfs as being a slave in our process so that changes 1002 // from parent namespace flow into our process. 1003 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) { 1004 fatal_errno("Failed to mount() rootfs as MS_SLAVE"); 1005 } 1006 1007 if (mount(EXTERNAL_STORAGE_SYSTEM, EXTERNAL_STORAGE_APP, "none", MS_BIND, NULL) == -1) { 1008 fatal_errno("Failed to mount() from %s", EXTERNAL_STORAGE_SYSTEM); 1009 } 1010} 1011#endif /* !ADB_HOST */ 1012 1013int adb_main(int is_daemon, int server_port) 1014{ 1015#if !ADB_HOST 1016 int port; 1017 char value[PROPERTY_VALUE_MAX]; 1018 1019 umask(000); 1020#endif 1021 1022 atexit(adb_cleanup); 1023#ifdef HAVE_WIN32_PROC 1024 SetConsoleCtrlHandler( ctrlc_handler, TRUE ); 1025#elif defined(HAVE_FORKEXEC) 1026 // No SIGCHLD. Let the service subproc handle its children. 1027 signal(SIGPIPE, SIG_IGN); 1028#endif 1029 1030 init_transport_registration(); 1031 1032#if ADB_HOST 1033 HOST = 1; 1034 usb_vendors_init(); 1035 usb_init(); 1036 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 1037 1038 char local_name[30]; 1039 build_local_name(local_name, sizeof(local_name), server_port); 1040 if(install_listener(local_name, "*smartsocket*", NULL)) { 1041 exit(1); 1042 } 1043#else 1044 1045 mount_external_storage(); 1046 1047 /* don't listen on a port (default 5037) if running in secure mode */ 1048 /* don't run as root if we are running in secure mode */ 1049 if (should_drop_privileges()) { 1050 struct __user_cap_header_struct header; 1051 struct __user_cap_data_struct cap; 1052 1053 if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0) { 1054 exit(1); 1055 } 1056 1057 /* add extra groups: 1058 ** AID_ADB to access the USB driver 1059 ** AID_LOG to read system logs (adb logcat) 1060 ** AID_INPUT to diagnose input issues (getevent) 1061 ** AID_INET to diagnose network issues (netcfg, ping) 1062 ** AID_GRAPHICS to access the frame buffer 1063 ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump) 1064 ** AID_SDCARD_R to allow reading from the SD card 1065 ** AID_SDCARD_RW to allow writing to the SD card 1066 ** AID_MOUNT to allow unmounting the SD card before rebooting 1067 ** AID_NET_BW_STATS to read out qtaguid statistics 1068 */ 1069 gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS, 1070 AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_R, AID_SDCARD_RW, 1071 AID_MOUNT, AID_NET_BW_STATS }; 1072 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 1073 exit(1); 1074 } 1075 1076 /* then switch user and group to "shell" */ 1077 if (setgid(AID_SHELL) != 0) { 1078 exit(1); 1079 } 1080 if (setuid(AID_SHELL) != 0) { 1081 exit(1); 1082 } 1083 1084 /* set CAP_SYS_BOOT capability, so "adb reboot" will succeed */ 1085 header.version = _LINUX_CAPABILITY_VERSION; 1086 header.pid = 0; 1087 cap.effective = cap.permitted = (1 << CAP_SYS_BOOT); 1088 cap.inheritable = 0; 1089 capset(&header, &cap); 1090 1091 D("Local port disabled\n"); 1092 } else { 1093 char local_name[30]; 1094 build_local_name(local_name, sizeof(local_name), server_port); 1095 if(install_listener(local_name, "*smartsocket*", NULL)) { 1096 exit(1); 1097 } 1098 } 1099 1100 int usb = 0; 1101 if (access(USB_ADB_PATH, F_OK) == 0 || access(USB_FFS_ADB_EP0, F_OK) == 0) { 1102 // listen on USB 1103 usb_init(); 1104 usb = 1; 1105 } 1106 1107 // If one of these properties is set, also listen on that port 1108 // If one of the properties isn't set and we couldn't listen on usb, 1109 // listen on the default port. 1110 property_get("service.adb.tcp.port", value, ""); 1111 if (!value[0]) { 1112 property_get("persist.adb.tcp.port", value, ""); 1113 } 1114 if (sscanf(value, "%d", &port) == 1 && port > 0) { 1115 printf("using port=%d\n", port); 1116 // listen on TCP port specified by service.adb.tcp.port property 1117 local_init(port); 1118 } else if (!usb) { 1119 // listen on default port 1120 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 1121 } 1122 1123 D("adb_main(): pre init_jdwp()\n"); 1124 init_jdwp(); 1125 D("adb_main(): post init_jdwp()\n"); 1126#endif 1127 1128 if (is_daemon) 1129 { 1130 // inform our parent that we are up and running. 1131#ifdef HAVE_WIN32_PROC 1132 DWORD count; 1133 WriteFile( GetStdHandle( STD_OUTPUT_HANDLE ), "OK\n", 3, &count, NULL ); 1134#elif defined(HAVE_FORKEXEC) 1135 fprintf(stderr, "OK\n"); 1136#endif 1137 start_logging(); 1138 } 1139 D("Event loop starting\n"); 1140 1141 fdevent_loop(); 1142 1143 usb_cleanup(); 1144 1145 return 0; 1146} 1147 1148#if ADB_HOST 1149void connect_device(char* host, char* buffer, int buffer_size) 1150{ 1151 int port, fd; 1152 char* portstr = strchr(host, ':'); 1153 char hostbuf[100]; 1154 char serial[100]; 1155 1156 strncpy(hostbuf, host, sizeof(hostbuf) - 1); 1157 if (portstr) { 1158 if (portstr - host >= (ptrdiff_t)sizeof(hostbuf)) { 1159 snprintf(buffer, buffer_size, "bad host name %s", host); 1160 return; 1161 } 1162 // zero terminate the host at the point we found the colon 1163 hostbuf[portstr - host] = 0; 1164 if (sscanf(portstr + 1, "%d", &port) == 0) { 1165 snprintf(buffer, buffer_size, "bad port number %s", portstr); 1166 return; 1167 } 1168 } else { 1169 port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT; 1170 } 1171 1172 snprintf(serial, sizeof(serial), "%s:%d", hostbuf, port); 1173 if (find_transport(serial)) { 1174 snprintf(buffer, buffer_size, "already connected to %s", serial); 1175 return; 1176 } 1177 1178 fd = socket_network_client(hostbuf, port, SOCK_STREAM); 1179 if (fd < 0) { 1180 snprintf(buffer, buffer_size, "unable to connect to %s:%d", host, port); 1181 return; 1182 } 1183 1184 D("client: connected on remote on fd %d\n", fd); 1185 close_on_exec(fd); 1186 disable_tcp_nagle(fd); 1187 register_socket_transport(fd, serial, port, 0); 1188 snprintf(buffer, buffer_size, "connected to %s", serial); 1189} 1190 1191void connect_emulator(char* port_spec, char* buffer, int buffer_size) 1192{ 1193 char* port_separator = strchr(port_spec, ','); 1194 if (!port_separator) { 1195 snprintf(buffer, buffer_size, 1196 "unable to parse '%s' as <console port>,<adb port>", 1197 port_spec); 1198 return; 1199 } 1200 1201 // Zero-terminate console port and make port_separator point to 2nd port. 1202 *port_separator++ = 0; 1203 int console_port = strtol(port_spec, NULL, 0); 1204 int adb_port = strtol(port_separator, NULL, 0); 1205 if (!(console_port > 0 && adb_port > 0)) { 1206 *(port_separator - 1) = ','; 1207 snprintf(buffer, buffer_size, 1208 "Invalid port numbers: Expected positive numbers, got '%s'", 1209 port_spec); 1210 return; 1211 } 1212 1213 /* Check if the emulator is already known. 1214 * Note: There's a small but harmless race condition here: An emulator not 1215 * present just yet could be registered by another invocation right 1216 * after doing this check here. However, local_connect protects 1217 * against double-registration too. From here, a better error message 1218 * can be produced. In the case of the race condition, the very specific 1219 * error message won't be shown, but the data doesn't get corrupted. */ 1220 atransport* known_emulator = find_emulator_transport_by_adb_port(adb_port); 1221 if (known_emulator != NULL) { 1222 snprintf(buffer, buffer_size, 1223 "Emulator on port %d already registered.", adb_port); 1224 return; 1225 } 1226 1227 /* Check if more emulators can be registered. Similar unproblematic 1228 * race condition as above. */ 1229 int candidate_slot = get_available_local_transport_index(); 1230 if (candidate_slot < 0) { 1231 snprintf(buffer, buffer_size, "Cannot accept more emulators."); 1232 return; 1233 } 1234 1235 /* Preconditions met, try to connect to the emulator. */ 1236 if (!local_connect_arbitrary_ports(console_port, adb_port)) { 1237 snprintf(buffer, buffer_size, 1238 "Connected to emulator on ports %d,%d", console_port, adb_port); 1239 } else { 1240 snprintf(buffer, buffer_size, 1241 "Could not connect to emulator on ports %d,%d", 1242 console_port, adb_port); 1243 } 1244} 1245#endif 1246 1247int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s) 1248{ 1249 atransport *transport = NULL; 1250 char buf[4096]; 1251 1252 if(!strcmp(service, "kill")) { 1253 fprintf(stderr,"adb server killed by remote request\n"); 1254 fflush(stdout); 1255 adb_write(reply_fd, "OKAY", 4); 1256 usb_cleanup(); 1257 exit(0); 1258 } 1259 1260#if ADB_HOST 1261 // "transport:" is used for switching transport with a specified serial number 1262 // "transport-usb:" is used for switching transport to the only USB transport 1263 // "transport-local:" is used for switching transport to the only local transport 1264 // "transport-any:" is used for switching transport to the only transport 1265 if (!strncmp(service, "transport", strlen("transport"))) { 1266 char* error_string = "unknown failure"; 1267 transport_type type = kTransportAny; 1268 1269 if (!strncmp(service, "transport-usb", strlen("transport-usb"))) { 1270 type = kTransportUsb; 1271 } else if (!strncmp(service, "transport-local", strlen("transport-local"))) { 1272 type = kTransportLocal; 1273 } else if (!strncmp(service, "transport-any", strlen("transport-any"))) { 1274 type = kTransportAny; 1275 } else if (!strncmp(service, "transport:", strlen("transport:"))) { 1276 service += strlen("transport:"); 1277 serial = service; 1278 } 1279 1280 transport = acquire_one_transport(CS_ANY, type, serial, &error_string); 1281 1282 if (transport) { 1283 s->transport = transport; 1284 adb_write(reply_fd, "OKAY", 4); 1285 } else { 1286 sendfailmsg(reply_fd, error_string); 1287 } 1288 return 1; 1289 } 1290 1291 // return a list of all connected devices 1292 if (!strncmp(service, "devices", 7)) { 1293 char buffer[4096]; 1294 int use_long = !strcmp(service+7, "-l"); 1295 if (use_long || service[7] == 0) { 1296 memset(buf, 0, sizeof(buf)); 1297 memset(buffer, 0, sizeof(buffer)); 1298 D("Getting device list \n"); 1299 list_transports(buffer, sizeof(buffer), use_long); 1300 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer); 1301 D("Wrote device list \n"); 1302 writex(reply_fd, buf, strlen(buf)); 1303 return 0; 1304 } 1305 } 1306 1307 // add a new TCP transport, device or emulator 1308 if (!strncmp(service, "connect:", 8)) { 1309 char buffer[4096]; 1310 char* host = service + 8; 1311 if (!strncmp(host, "emu:", 4)) { 1312 connect_emulator(host + 4, buffer, sizeof(buffer)); 1313 } else { 1314 connect_device(host, buffer, sizeof(buffer)); 1315 } 1316 // Send response for emulator and device 1317 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer); 1318 writex(reply_fd, buf, strlen(buf)); 1319 return 0; 1320 } 1321 1322 // remove TCP transport 1323 if (!strncmp(service, "disconnect:", 11)) { 1324 char buffer[4096]; 1325 memset(buffer, 0, sizeof(buffer)); 1326 char* serial = service + 11; 1327 if (serial[0] == 0) { 1328 // disconnect from all TCP devices 1329 unregister_all_tcp_transports(); 1330 } else { 1331 char hostbuf[100]; 1332 // assume port 5555 if no port is specified 1333 if (!strchr(serial, ':')) { 1334 snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial); 1335 serial = hostbuf; 1336 } 1337 atransport *t = find_transport(serial); 1338 1339 if (t) { 1340 unregister_transport(t); 1341 } else { 1342 snprintf(buffer, sizeof(buffer), "No such device %s", serial); 1343 } 1344 } 1345 1346 snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer); 1347 writex(reply_fd, buf, strlen(buf)); 1348 return 0; 1349 } 1350 1351 // returns our value for ADB_SERVER_VERSION 1352 if (!strcmp(service, "version")) { 1353 char version[12]; 1354 snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION); 1355 snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version); 1356 writex(reply_fd, buf, strlen(buf)); 1357 return 0; 1358 } 1359 1360 if(!strncmp(service,"get-serialno",strlen("get-serialno"))) { 1361 char *out = "unknown"; 1362 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1363 if (transport && transport->serial) { 1364 out = transport->serial; 1365 } 1366 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 1367 writex(reply_fd, buf, strlen(buf)); 1368 return 0; 1369 } 1370 if(!strncmp(service,"get-devpath",strlen("get-devpath"))) { 1371 char *out = "unknown"; 1372 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1373 if (transport && transport->devpath) { 1374 out = transport->devpath; 1375 } 1376 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out); 1377 writex(reply_fd, buf, strlen(buf)); 1378 return 0; 1379 } 1380 // indicates a new emulator instance has started 1381 if (!strncmp(service,"emulator:",9)) { 1382 int port = atoi(service+9); 1383 local_connect(port); 1384 /* we don't even need to send a reply */ 1385 return 0; 1386 } 1387#endif // ADB_HOST 1388 1389 if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) { 1390 char *local, *remote, *err; 1391 int r; 1392 atransport *transport; 1393 1394 int createForward = strncmp(service,"kill",4); 1395 1396 local = service + (createForward ? 8 : 12); 1397 remote = strchr(local,';'); 1398 if(remote == 0) { 1399 sendfailmsg(reply_fd, "malformed forward spec"); 1400 return 0; 1401 } 1402 1403 *remote++ = 0; 1404 if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){ 1405 sendfailmsg(reply_fd, "malformed forward spec"); 1406 return 0; 1407 } 1408 1409 transport = acquire_one_transport(CS_ANY, ttype, serial, &err); 1410 if (!transport) { 1411 sendfailmsg(reply_fd, err); 1412 return 0; 1413 } 1414 1415 if (createForward) { 1416 r = install_listener(local, remote, transport); 1417 } else { 1418 r = remove_listener(local, remote, transport); 1419 } 1420 if(r == 0) { 1421 /* 1st OKAY is connect, 2nd OKAY is status */ 1422 writex(reply_fd, "OKAYOKAY", 8); 1423 return 0; 1424 } 1425 1426 if (createForward) { 1427 sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket"); 1428 } else { 1429 sendfailmsg(reply_fd, "cannot remove listener"); 1430 } 1431 return 0; 1432 } 1433 1434 if(!strncmp(service,"get-state",strlen("get-state"))) { 1435 transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); 1436 char *state = connection_state_name(transport); 1437 snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state); 1438 writex(reply_fd, buf, strlen(buf)); 1439 return 0; 1440 } 1441 return -1; 1442} 1443 1444#if !ADB_HOST 1445int recovery_mode = 0; 1446#endif 1447 1448int main(int argc, char **argv) 1449{ 1450#if ADB_HOST 1451 adb_sysdeps_init(); 1452 adb_trace_init(); 1453 D("Handling commandline()\n"); 1454 return adb_commandline(argc - 1, argv + 1); 1455#else 1456 /* If adbd runs inside the emulator this will enable adb tracing via 1457 * adb-debug qemud service in the emulator. */ 1458 adb_qemu_trace_init(); 1459 if((argc > 1) && (!strcmp(argv[1],"recovery"))) { 1460 adb_device_banner = "recovery"; 1461 recovery_mode = 1; 1462 } 1463 1464 start_device_log(); 1465 D("Handling main()\n"); 1466 return adb_main(0, DEFAULT_ADB_PORT); 1467#endif 1468} 1469