adb.c revision c29569c5d3c1358983915596267e85e85c7f82e2
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. *dst will be set to a dup of src. 345 */ 346static void qual_overwrite(char **dst, const char *src) 347{ 348 if (!dst) 349 return; 350 351 free(*dst); 352 *dst = NULL; 353 354 if (!src || !*src) 355 return; 356 357 *dst = strdup(src); 358} 359 360void parse_banner(char *banner, atransport *t) 361{ 362 static const char *prop_seps = ";"; 363 static const char key_val_sep = '='; 364 char *cp; 365 char *type; 366 367 D("parse_banner: %s\n", banner); 368 type = banner; 369 cp = strchr(type, ':'); 370 if (cp) { 371 *cp++ = 0; 372 /* Nothing is done with second field. */ 373 cp = strchr(cp, ':'); 374 if (cp) { 375 char *save; 376 char *key; 377 key = adb_strtok_r(cp + 1, prop_seps, &save); 378 while (key) { 379 cp = strchr(key, key_val_sep); 380 if (cp) { 381 *cp++ = '\0'; 382 if (!strcmp(key, "ro.product.name")) 383 qual_overwrite(&t->product, cp); 384 else if (!strcmp(key, "ro.product.model")) 385 qual_overwrite(&t->model, cp); 386 else if (!strcmp(key, "ro.product.device")) 387 qual_overwrite(&t->device, cp); 388 } 389 key = adb_strtok_r(NULL, prop_seps, &save); 390 } 391 } 392 } 393 394 if(!strcmp(type, "bootloader")){ 395 D("setting connection_state to CS_BOOTLOADER\n"); 396 t->connection_state = CS_BOOTLOADER; 397 update_transports(); 398 return; 399 } 400 401 if(!strcmp(type, "device")) { 402 D("setting connection_state to CS_DEVICE\n"); 403 t->connection_state = CS_DEVICE; 404 update_transports(); 405 return; 406 } 407 408 if(!strcmp(type, "recovery")) { 409 D("setting connection_state to CS_RECOVERY\n"); 410 t->connection_state = CS_RECOVERY; 411 update_transports(); 412 return; 413 } 414 415 if(!strcmp(type, "sideload")) { 416 D("setting connection_state to CS_SIDELOAD\n"); 417 t->connection_state = CS_SIDELOAD; 418 update_transports(); 419 return; 420 } 421 422 t->connection_state = CS_HOST; 423} 424 425void handle_packet(apacket *p, atransport *t) 426{ 427 asocket *s; 428 429 D("handle_packet() %c%c%c%c\n", ((char*) (&(p->msg.command)))[0], 430 ((char*) (&(p->msg.command)))[1], 431 ((char*) (&(p->msg.command)))[2], 432 ((char*) (&(p->msg.command)))[3]); 433 print_packet("recv", p); 434 435 switch(p->msg.command){ 436 case A_SYNC: 437 if(p->msg.arg0){ 438 send_packet(p, t); 439 if(HOST) send_connect(t); 440 } else { 441 t->connection_state = CS_OFFLINE; 442 handle_offline(t); 443 send_packet(p, t); 444 } 445 return; 446 447 case A_CNXN: /* CONNECT(version, maxdata, "system-id-string") */ 448 /* XXX verify version, etc */ 449 if(t->connection_state != CS_OFFLINE) { 450 t->connection_state = CS_OFFLINE; 451 handle_offline(t); 452 } 453 parse_banner((char*) p->data, t); 454 handle_online(); 455 if(!HOST) send_connect(t); 456 break; 457 458 case A_OPEN: /* OPEN(local-id, 0, "destination") */ 459 if(t->connection_state != CS_OFFLINE) { 460 char *name = (char*) p->data; 461 name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0; 462 s = create_local_service_socket(name); 463 if(s == 0) { 464 send_close(0, p->msg.arg0, t); 465 } else { 466 s->peer = create_remote_socket(p->msg.arg0, t); 467 s->peer->peer = s; 468 send_ready(s->id, s->peer->id, t); 469 s->ready(s); 470 } 471 } 472 break; 473 474 case A_OKAY: /* READY(local-id, remote-id, "") */ 475 if(t->connection_state != CS_OFFLINE) { 476 if((s = find_local_socket(p->msg.arg1))) { 477 if(s->peer == 0) { 478 s->peer = create_remote_socket(p->msg.arg0, t); 479 s->peer->peer = s; 480 } 481 s->ready(s); 482 } 483 } 484 break; 485 486 case A_CLSE: /* CLOSE(local-id, remote-id, "") */ 487 if(t->connection_state != CS_OFFLINE) { 488 if((s = find_local_socket(p->msg.arg1))) { 489 s->close(s); 490 } 491 } 492 break; 493 494 case A_WRTE: 495 if(t->connection_state != CS_OFFLINE) { 496 if((s = find_local_socket(p->msg.arg1))) { 497 unsigned rid = p->msg.arg0; 498 p->len = p->msg.data_length; 499 500 if(s->enqueue(s, p) == 0) { 501 D("Enqueue the socket\n"); 502 send_ready(s->id, rid, t); 503 } 504 return; 505 } 506 } 507 break; 508 509 default: 510 printf("handle_packet: what is %08x?!\n", p->msg.command); 511 } 512 513 put_apacket(p); 514} 515 516alistener listener_list = { 517 .next = &listener_list, 518 .prev = &listener_list, 519}; 520 521static void ss_listener_event_func(int _fd, unsigned ev, void *_l) 522{ 523 asocket *s; 524 525 if(ev & FDE_READ) { 526 struct sockaddr addr; 527 socklen_t alen; 528 int fd; 529 530 alen = sizeof(addr); 531 fd = adb_socket_accept(_fd, &addr, &alen); 532 if(fd < 0) return; 533 534 adb_socket_setbufsize(fd, CHUNK_SIZE); 535 536 s = create_local_socket(fd); 537 if(s) { 538 connect_to_smartsocket(s); 539 return; 540 } 541 542 adb_close(fd); 543 } 544} 545 546static void listener_event_func(int _fd, unsigned ev, void *_l) 547{ 548 alistener *l = _l; 549 asocket *s; 550 551 if(ev & FDE_READ) { 552 struct sockaddr addr; 553 socklen_t alen; 554 int fd; 555 556 alen = sizeof(addr); 557 fd = adb_socket_accept(_fd, &addr, &alen); 558 if(fd < 0) return; 559 560 s = create_local_socket(fd); 561 if(s) { 562 s->transport = l->transport; 563 connect_to_remote(s, l->connect_to); 564 return; 565 } 566 567 adb_close(fd); 568 } 569} 570 571static void free_listener(alistener* l) 572{ 573 if (l->next) { 574 l->next->prev = l->prev; 575 l->prev->next = l->next; 576 l->next = l->prev = l; 577 } 578 579 // closes the corresponding fd 580 fdevent_remove(&l->fde); 581 582 if (l->local_name) 583 free((char*)l->local_name); 584 585 if (l->connect_to) 586 free((char*)l->connect_to); 587 588 if (l->transport) { 589 remove_transport_disconnect(l->transport, &l->disconnect); 590 } 591 free(l); 592} 593 594static void listener_disconnect(void* _l, atransport* t) 595{ 596 alistener* l = _l; 597 598 free_listener(l); 599} 600 601int local_name_to_fd(const char *name) 602{ 603 int port; 604 605 if(!strncmp("tcp:", name, 4)){ 606 int ret; 607 port = atoi(name + 4); 608 ret = socket_loopback_server(port, SOCK_STREAM); 609 return ret; 610 } 611#ifndef HAVE_WIN32_IPC /* no Unix-domain sockets on Win32 */ 612 // It's non-sensical to support the "reserved" space on the adb host side 613 if(!strncmp(name, "local:", 6)) { 614 return socket_local_server(name + 6, 615 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 616 } else if(!strncmp(name, "localabstract:", 14)) { 617 return socket_local_server(name + 14, 618 ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); 619 } else if(!strncmp(name, "localfilesystem:", 16)) { 620 return socket_local_server(name + 16, 621 ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM); 622 } 623 624#endif 625 printf("unknown local portname '%s'\n", name); 626 return -1; 627} 628 629static int remove_listener(const char *local_name, const char *connect_to, atransport* transport) 630{ 631 alistener *l; 632 633 for (l = listener_list.next; l != &listener_list; l = l->next) { 634 if (!strcmp(local_name, l->local_name) && 635 !strcmp(connect_to, l->connect_to) && 636 l->transport && l->transport == transport) { 637 638 listener_disconnect(l, transport); 639 return 0; 640 } 641 } 642 643 return -1; 644} 645 646static int install_listener(const char *local_name, const char *connect_to, atransport* transport) 647{ 648 alistener *l; 649 650 //printf("install_listener('%s','%s')\n", local_name, connect_to); 651 652 for(l = listener_list.next; l != &listener_list; l = l->next){ 653 if(strcmp(local_name, l->local_name) == 0) { 654 char *cto; 655 656 /* can't repurpose a smartsocket */ 657 if(l->connect_to[0] == '*') { 658 return -1; 659 } 660 661 cto = strdup(connect_to); 662 if(cto == 0) { 663 return -1; 664 } 665 666 //printf("rebinding '%s' to '%s'\n", local_name, connect_to); 667 free((void*) l->connect_to); 668 l->connect_to = cto; 669 if (l->transport != transport) { 670 remove_transport_disconnect(l->transport, &l->disconnect); 671 l->transport = transport; 672 add_transport_disconnect(l->transport, &l->disconnect); 673 } 674 return 0; 675 } 676 } 677 678 if((l = calloc(1, sizeof(alistener))) == 0) goto nomem; 679 if((l->local_name = strdup(local_name)) == 0) goto nomem; 680 if((l->connect_to = strdup(connect_to)) == 0) goto nomem; 681 682 683 l->fd = local_name_to_fd(local_name); 684 if(l->fd < 0) { 685 free((void*) l->local_name); 686 free((void*) l->connect_to); 687 free(l); 688 printf("cannot bind '%s'\n", local_name); 689 return -2; 690 } 691 692 close_on_exec(l->fd); 693 if(!strcmp(l->connect_to, "*smartsocket*")) { 694 fdevent_install(&l->fde, l->fd, ss_listener_event_func, l); 695 } else { 696 fdevent_install(&l->fde, l->fd, listener_event_func, l); 697 } 698 fdevent_set(&l->fde, FDE_READ); 699 700 l->next = &listener_list; 701 l->prev = listener_list.prev; 702 l->next->prev = l; 703 l->prev->next = l; 704 l->transport = transport; 705 706 if (transport) { 707 l->disconnect.opaque = l; 708 l->disconnect.func = listener_disconnect; 709 add_transport_disconnect(transport, &l->disconnect); 710 } 711 return 0; 712 713nomem: 714 fatal("cannot allocate listener"); 715 return 0; 716} 717 718#ifdef HAVE_WIN32_PROC 719static BOOL WINAPI ctrlc_handler(DWORD type) 720{ 721 exit(STATUS_CONTROL_C_EXIT); 722 return TRUE; 723} 724#endif 725 726static void adb_cleanup(void) 727{ 728 usb_cleanup(); 729} 730 731void start_logging(void) 732{ 733#ifdef HAVE_WIN32_PROC 734 char temp[ MAX_PATH ]; 735 FILE* fnul; 736 FILE* flog; 737 738 GetTempPath( sizeof(temp) - 8, temp ); 739 strcat( temp, "adb.log" ); 740 741 /* Win32 specific redirections */ 742 fnul = fopen( "NUL", "rt" ); 743 if (fnul != NULL) 744 stdin[0] = fnul[0]; 745 746 flog = fopen( temp, "at" ); 747 if (flog == NULL) 748 flog = fnul; 749 750 setvbuf( flog, NULL, _IONBF, 0 ); 751 752 stdout[0] = flog[0]; 753 stderr[0] = flog[0]; 754 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 755#else 756 int fd; 757 758 fd = unix_open("/dev/null", O_RDONLY); 759 dup2(fd, 0); 760 adb_close(fd); 761 762 fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640); 763 if(fd < 0) { 764 fd = unix_open("/dev/null", O_WRONLY); 765 } 766 dup2(fd, 1); 767 dup2(fd, 2); 768 adb_close(fd); 769 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 770#endif 771} 772 773#if !ADB_HOST 774void start_device_log(void) 775{ 776 int fd; 777 char path[PATH_MAX]; 778 struct tm now; 779 time_t t; 780 char value[PROPERTY_VALUE_MAX]; 781 782 // read the trace mask from persistent property persist.adb.trace_mask 783 // give up if the property is not set or cannot be parsed 784 property_get("persist.adb.trace_mask", value, ""); 785 if (sscanf(value, "%x", &adb_trace_mask) != 1) 786 return; 787 788 adb_mkdir("/data/adb", 0775); 789 tzset(); 790 time(&t); 791 localtime_r(&t, &now); 792 strftime(path, sizeof(path), 793 "/data/adb/adb-%Y-%m-%d-%H-%M-%S.txt", 794 &now); 795 fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640); 796 if (fd < 0) 797 return; 798 799 // redirect stdout and stderr to the log file 800 dup2(fd, 1); 801 dup2(fd, 2); 802 fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid()); 803 adb_close(fd); 804 805 fd = unix_open("/dev/null", O_RDONLY); 806 dup2(fd, 0); 807 adb_close(fd); 808} 809#endif 810 811#if ADB_HOST 812int launch_server(int server_port) 813{ 814#ifdef HAVE_WIN32_PROC 815 /* we need to start the server in the background */ 816 /* we create a PIPE that will be used to wait for the server's "OK" */ 817 /* message since the pipe handles must be inheritable, we use a */ 818 /* security attribute */ 819 HANDLE pipe_read, pipe_write; 820 SECURITY_ATTRIBUTES sa; 821 STARTUPINFO startup; 822 PROCESS_INFORMATION pinfo; 823 char program_path[ MAX_PATH ]; 824 int ret; 825 826 sa.nLength = sizeof(sa); 827 sa.lpSecurityDescriptor = NULL; 828 sa.bInheritHandle = TRUE; 829 830 /* create pipe, and ensure its read handle isn't inheritable */ 831 ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 ); 832 if (!ret) { 833 fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() ); 834 return -1; 835 } 836 837 SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 ); 838 839 ZeroMemory( &startup, sizeof(startup) ); 840 startup.cb = sizeof(startup); 841 startup.hStdInput = GetStdHandle( STD_INPUT_HANDLE ); 842 startup.hStdOutput = pipe_write; 843 startup.hStdError = GetStdHandle( STD_ERROR_HANDLE ); 844 startup.dwFlags = STARTF_USESTDHANDLES; 845 846 ZeroMemory( &pinfo, sizeof(pinfo) ); 847 848 /* get path of current program */ 849 GetModuleFileName( NULL, program_path, sizeof(program_path) ); 850 851 ret = CreateProcess( 852 program_path, /* program path */ 853 "adb fork-server server", 854 /* the fork-server argument will set the 855 debug = 2 in the child */ 856 NULL, /* process handle is not inheritable */ 857 NULL, /* thread handle is not inheritable */ 858 TRUE, /* yes, inherit some handles */ 859 DETACHED_PROCESS, /* the new process doesn't have a console */ 860 NULL, /* use parent's environment block */ 861 NULL, /* use parent's starting directory */ 862 &startup, /* startup info, i.e. std handles */ 863 &pinfo ); 864 865 CloseHandle( pipe_write ); 866 867 if (!ret) { 868 fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() ); 869 CloseHandle( pipe_read ); 870 return -1; 871 } 872 873 CloseHandle( pinfo.hProcess ); 874 CloseHandle( pinfo.hThread ); 875 876 /* wait for the "OK\n" message */ 877 { 878 char temp[3]; 879 DWORD count; 880 881 ret = ReadFile( pipe_read, temp, 3, &count, NULL ); 882 CloseHandle( pipe_read ); 883 if ( !ret ) { 884 fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() ); 885 return -1; 886 } 887 if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 888 fprintf(stderr, "ADB server didn't ACK\n" ); 889 return -1; 890 } 891 } 892#elif defined(HAVE_FORKEXEC) 893 char path[PATH_MAX]; 894 int fd[2]; 895 896 // set up a pipe so the child can tell us when it is ready. 897 // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child. 898 if (pipe(fd)) { 899 fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno); 900 return -1; 901 } 902 get_my_path(path, PATH_MAX); 903 pid_t pid = fork(); 904 if(pid < 0) return -1; 905 906 if (pid == 0) { 907 // child side of the fork 908 909 // redirect stderr to the pipe 910 // we use stderr instead of stdout due to stdout's buffering behavior. 911 adb_close(fd[0]); 912 dup2(fd[1], STDERR_FILENO); 913 adb_close(fd[1]); 914 915 // child process 916 int result = execl(path, "adb", "fork-server", "server", NULL); 917 // this should not return 918 fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno); 919 } else { 920 // parent side of the fork 921 922 char temp[3]; 923 924 temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C'; 925 // wait for the "OK\n" message 926 adb_close(fd[1]); 927 int ret = adb_read(fd[0], temp, 3); 928 int saved_errno = errno; 929 adb_close(fd[0]); 930 if (ret < 0) { 931 fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", saved_errno); 932 return -1; 933 } 934 if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { 935 fprintf(stderr, "ADB server didn't ACK\n" ); 936 return -1; 937 } 938 939 setsid(); 940 } 941#else 942#error "cannot implement background server start on this platform" 943#endif 944 return 0; 945} 946#endif 947 948/* Constructs a local name of form tcp:port. 949 * target_str points to the target string, it's content will be overwritten. 950 * target_size is the capacity of the target string. 951 * server_port is the port number to use for the local name. 952 */ 953void build_local_name(char* target_str, size_t target_size, int server_port) 954{ 955 snprintf(target_str, target_size, "tcp:%d", server_port); 956} 957 958#if !ADB_HOST 959static int should_drop_privileges() { 960#ifndef ALLOW_ADBD_ROOT 961 return 1; 962#else /* ALLOW_ADBD_ROOT */ 963 int secure = 0; 964 char value[PROPERTY_VALUE_MAX]; 965 966 /* run adbd in secure mode if ro.secure is set and 967 ** we are not in the emulator 968 */ 969 property_get("ro.kernel.qemu", value, ""); 970 if (strcmp(value, "1") != 0) { 971 property_get("ro.secure", value, "1"); 972 if (strcmp(value, "1") == 0) { 973 // don't run as root if ro.secure is set... 974 secure = 1; 975 976 // ... except we allow running as root in userdebug builds if the 977 // service.adb.root property has been set by the "adb root" command 978 property_get("ro.debuggable", value, ""); 979 if (strcmp(value, "1") == 0) { 980 property_get("service.adb.root", value, ""); 981 if (strcmp(value, "1") == 0) { 982 secure = 0; 983 } 984 } 985 } 986 } 987 return secure; 988#endif /* ALLOW_ADBD_ROOT */ 989} 990#endif /* !ADB_HOST */ 991 992int adb_main(int is_daemon, int server_port) 993{ 994#if !ADB_HOST 995 int port; 996 char value[PROPERTY_VALUE_MAX]; 997 998 umask(000); 999#endif 1000 1001 atexit(adb_cleanup); 1002#ifdef HAVE_WIN32_PROC 1003 SetConsoleCtrlHandler( ctrlc_handler, TRUE ); 1004#elif defined(HAVE_FORKEXEC) 1005 // No SIGCHLD. Let the service subproc handle its children. 1006 signal(SIGPIPE, SIG_IGN); 1007#endif 1008 1009 init_transport_registration(); 1010 1011 1012#if ADB_HOST 1013 HOST = 1; 1014 usb_vendors_init(); 1015 usb_init(); 1016 local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT); 1017 1018 char local_name[30]; 1019 build_local_name(local_name, sizeof(local_name), server_port); 1020 if(install_listener(local_name, "*smartsocket*", NULL)) { 1021 exit(1); 1022 } 1023#else 1024 1025 /* don't listen on a port (default 5037) if running in secure mode */ 1026 /* don't run as root if we are running in secure mode */ 1027 if (should_drop_privileges()) { 1028 struct __user_cap_header_struct header; 1029 struct __user_cap_data_struct cap; 1030 1031 if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0) { 1032 exit(1); 1033 } 1034 1035 /* add extra groups: 1036 ** AID_ADB to access the USB driver 1037 ** AID_LOG to read system logs (adb logcat) 1038 ** AID_INPUT to diagnose input issues (getevent) 1039 ** AID_INET to diagnose network issues (netcfg, ping) 1040 ** AID_GRAPHICS to access the frame buffer 1041 ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump) 1042 ** AID_SDCARD_R to allow reading from the SD card 1043 ** AID_SDCARD_RW to allow writing to the SD card 1044 ** AID_MOUNT to allow unmounting the SD card before rebooting 1045 ** AID_NET_BW_STATS to read out qtaguid statistics 1046 */ 1047 gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_GRAPHICS, 1048 AID_NET_BT, AID_NET_BT_ADMIN, AID_SDCARD_R, AID_SDCARD_RW, 1049 AID_MOUNT, AID_NET_BW_STATS }; 1050 if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) { 1051 exit(1); 1052 } 1053 1054 /* then switch user and group to "shell" */ 1055 if (setgid(AID_SHELL) != 0) { 1056 exit(1); 1057 } 1058 if (setuid(AID_SHELL) != 0) { 1059 exit(1); 1060 } 1061 1062 /* set CAP_SYS_BOOT capability, so "adb reboot" will succeed */ 1063 header.version = _LINUX_CAPABILITY_VERSION; 1064 header.pid = 0; 1065 cap.effective = cap.permitted = (1 << CAP_SYS_BOOT); 1066 cap.inheritable = 0; 1067 capset(&header, &cap); 1068 1069 D("Local port disabled\n"); 1070 } else { 1071 char local_name[30]; 1072 build_local_name(local_name, sizeof(local_name), server_port); 1073 if(install_listener(local_name, "*smartsocket*", NULL)) { 1074 exit(1); 1075 } 1076 } 1077 1078 /* for the device, start the usb transport if the 1079 ** android usb device exists and the "service.adb.tcp.port" and 1080 ** "persist.adb.tcp.port" properties are not set. 1081 ** Otherwise start the network transport. 1082 */ 1083 property_get("service.adb.tcp.port", value, ""); 1084 if (!value[0]) 1085 property_get("persist.adb.tcp.port", value, ""); 1086 if (sscanf(value, "%d", &port) == 1 && port > 0) { 1087 // listen on TCP port specified by service.adb.tcp.port property 1088 local_init(port); 1089 } else if (access(USB_ADB_PATH, F_OK) == 0 || 1090 access(USB_FFS_ADB_EP0, 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