The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 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 | #include <stdlib.h> |
| 18 | #include <stdio.h> |
| 19 | #include <unistd.h> |
| 20 | #include <string.h> |
| 21 | #include <errno.h> |
| 22 | |
| 23 | #include "sysdeps.h" |
| 24 | |
| 25 | #define TRACE_TAG TRACE_ADB |
| 26 | #include "adb.h" |
| 27 | #include "file_sync_service.h" |
| 28 | |
| 29 | #if ADB_HOST |
| 30 | # ifndef HAVE_WINSOCK |
| 31 | # include <netinet/in.h> |
| 32 | # include <netdb.h> |
| 33 | # endif |
Mike Lockwood | fa311c3 | 2009-07-30 16:23:56 -0700 | [diff] [blame] | 34 | #else |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 35 | # include <sys/reboot.h> |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 36 | #endif |
| 37 | |
| 38 | typedef struct stinfo stinfo; |
| 39 | |
| 40 | struct stinfo { |
| 41 | void (*func)(int fd, void *cookie); |
| 42 | int fd; |
| 43 | void *cookie; |
| 44 | }; |
| 45 | |
| 46 | |
| 47 | void *service_bootstrap_func(void *x) |
| 48 | { |
| 49 | stinfo *sti = x; |
| 50 | sti->func(sti->fd, sti->cookie); |
| 51 | free(sti); |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | #if ADB_HOST |
| 56 | ADB_MUTEX_DEFINE( dns_lock ); |
| 57 | |
| 58 | static void dns_service(int fd, void *cookie) |
| 59 | { |
| 60 | char *hostname = cookie; |
| 61 | struct hostent *hp; |
| 62 | unsigned zero = 0; |
| 63 | |
| 64 | adb_mutex_lock(&dns_lock); |
| 65 | hp = gethostbyname(hostname); |
| 66 | if(hp == 0) { |
| 67 | writex(fd, &zero, 4); |
| 68 | } else { |
| 69 | writex(fd, hp->h_addr, 4); |
| 70 | } |
| 71 | adb_mutex_unlock(&dns_lock); |
| 72 | adb_close(fd); |
| 73 | } |
| 74 | #else |
| 75 | extern int recovery_mode; |
| 76 | |
| 77 | static void recover_service(int s, void *cookie) |
| 78 | { |
| 79 | unsigned char buf[4096]; |
| 80 | unsigned count = (unsigned) cookie; |
| 81 | int fd; |
| 82 | |
| 83 | fd = adb_creat("/tmp/update", 0644); |
| 84 | if(fd < 0) { |
| 85 | adb_close(s); |
| 86 | return; |
| 87 | } |
| 88 | |
| 89 | while(count > 0) { |
| 90 | unsigned xfer = (count > 4096) ? 4096 : count; |
| 91 | if(readx(s, buf, xfer)) break; |
| 92 | if(writex(fd, buf, xfer)) break; |
| 93 | count -= xfer; |
| 94 | } |
| 95 | |
| 96 | if(count == 0) { |
| 97 | writex(s, "OKAY", 4); |
| 98 | } else { |
| 99 | writex(s, "FAIL", 4); |
| 100 | } |
| 101 | adb_close(fd); |
| 102 | adb_close(s); |
| 103 | |
| 104 | fd = adb_creat("/tmp/update.begin", 0644); |
| 105 | adb_close(fd); |
| 106 | } |
| 107 | |
The Android Open Source Project | 9c75340 | 2009-03-13 13:04:37 -0700 | [diff] [blame] | 108 | void restart_root_service(int fd, void *cookie) |
| 109 | { |
| 110 | char buf[100]; |
| 111 | char value[PROPERTY_VALUE_MAX]; |
| 112 | |
| 113 | if (getuid() == 0) { |
| 114 | snprintf(buf, sizeof(buf), "adbd is already running as root\n"); |
| 115 | writex(fd, buf, strlen(buf)); |
| 116 | adb_close(fd); |
| 117 | } else { |
| 118 | property_get("ro.debuggable", value, ""); |
| 119 | if (strcmp(value, "1") != 0) { |
| 120 | snprintf(buf, sizeof(buf), "adbd cannot run as root in production builds\n"); |
| 121 | writex(fd, buf, strlen(buf)); |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 122 | adb_close(fd); |
The Android Open Source Project | 9c75340 | 2009-03-13 13:04:37 -0700 | [diff] [blame] | 123 | return; |
| 124 | } |
| 125 | |
| 126 | property_set("service.adb.root", "1"); |
| 127 | snprintf(buf, sizeof(buf), "restarting adbd as root\n"); |
| 128 | writex(fd, buf, strlen(buf)); |
| 129 | adb_close(fd); |
| 130 | |
| 131 | // quit, and init will restart us as root |
| 132 | sleep(1); |
| 133 | exit(1); |
| 134 | } |
| 135 | } |
| 136 | |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 137 | void restart_tcp_service(int fd, void *cookie) |
| 138 | { |
| 139 | char buf[100]; |
| 140 | char value[PROPERTY_VALUE_MAX]; |
| 141 | int port = (int)cookie; |
| 142 | |
| 143 | if (port <= 0) { |
| 144 | snprintf(buf, sizeof(buf), "invalid port\n"); |
| 145 | writex(fd, buf, strlen(buf)); |
| 146 | adb_close(fd); |
| 147 | return; |
| 148 | } |
| 149 | |
| 150 | snprintf(value, sizeof(value), "%d", port); |
| 151 | property_set("service.adb.tcp.port", value); |
| 152 | snprintf(buf, sizeof(buf), "restarting in TCP mode port: %d\n", port); |
| 153 | writex(fd, buf, strlen(buf)); |
| 154 | adb_close(fd); |
| 155 | |
| 156 | // quit, and init will restart us in TCP mode |
| 157 | sleep(1); |
| 158 | exit(1); |
| 159 | } |
| 160 | |
| 161 | void restart_usb_service(int fd, void *cookie) |
| 162 | { |
| 163 | char buf[100]; |
| 164 | |
| 165 | property_set("service.adb.tcp.port", "0"); |
| 166 | snprintf(buf, sizeof(buf), "restarting in USB mode\n"); |
| 167 | writex(fd, buf, strlen(buf)); |
| 168 | adb_close(fd); |
| 169 | |
| 170 | // quit, and init will restart us in USB mode |
| 171 | sleep(1); |
| 172 | exit(1); |
| 173 | } |
| 174 | |
| 175 | void reboot_service(int fd, void *arg) |
Mike Lockwood | 12a35ea | 2009-08-04 20:37:51 -0400 | [diff] [blame] | 176 | { |
| 177 | char buf[100]; |
| 178 | int ret; |
| 179 | |
| 180 | sync(); |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 181 | ret = __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, |
| 182 | LINUX_REBOOT_CMD_RESTART2, (char *)arg); |
Mike Lockwood | 12a35ea | 2009-08-04 20:37:51 -0400 | [diff] [blame] | 183 | if (ret < 0) { |
| 184 | snprintf(buf, sizeof(buf), "reboot failed: %s\n", strerror(errno)); |
| 185 | writex(fd, buf, strlen(buf)); |
| 186 | } |
| 187 | adb_close(fd); |
| 188 | } |
| 189 | |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 190 | #endif |
| 191 | |
| 192 | #if 0 |
| 193 | static void echo_service(int fd, void *cookie) |
| 194 | { |
| 195 | char buf[4096]; |
| 196 | int r; |
| 197 | char *p; |
| 198 | int c; |
| 199 | |
| 200 | for(;;) { |
| 201 | r = read(fd, buf, 4096); |
| 202 | if(r == 0) goto done; |
| 203 | if(r < 0) { |
| 204 | if(errno == EINTR) continue; |
| 205 | else goto done; |
| 206 | } |
| 207 | |
| 208 | c = r; |
| 209 | p = buf; |
| 210 | while(c > 0) { |
| 211 | r = write(fd, p, c); |
| 212 | if(r > 0) { |
| 213 | c -= r; |
| 214 | p += r; |
| 215 | continue; |
| 216 | } |
| 217 | if((r < 0) && (errno == EINTR)) continue; |
| 218 | goto done; |
| 219 | } |
| 220 | } |
| 221 | done: |
| 222 | close(fd); |
| 223 | } |
| 224 | #endif |
| 225 | |
| 226 | static int create_service_thread(void (*func)(int, void *), void *cookie) |
| 227 | { |
| 228 | stinfo *sti; |
| 229 | adb_thread_t t; |
| 230 | int s[2]; |
| 231 | |
| 232 | if(adb_socketpair(s)) { |
| 233 | printf("cannot create service socket pair\n"); |
| 234 | return -1; |
| 235 | } |
| 236 | |
| 237 | sti = malloc(sizeof(stinfo)); |
| 238 | if(sti == 0) fatal("cannot allocate stinfo"); |
| 239 | sti->func = func; |
| 240 | sti->cookie = cookie; |
| 241 | sti->fd = s[1]; |
| 242 | |
| 243 | if(adb_thread_create( &t, service_bootstrap_func, sti)){ |
| 244 | free(sti); |
| 245 | adb_close(s[0]); |
| 246 | adb_close(s[1]); |
| 247 | printf("cannot create service thread\n"); |
| 248 | return -1; |
| 249 | } |
| 250 | |
| 251 | D("service thread started, %d:%d\n",s[0], s[1]); |
| 252 | return s[0]; |
| 253 | } |
| 254 | |
| 255 | static int create_subprocess(const char *cmd, const char *arg0, const char *arg1) |
| 256 | { |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 257 | #ifdef HAVE_WIN32_PROC |
| 258 | fprintf(stderr, "error: create_subprocess not implemented on Win32 (%s %s %s)\n", cmd, arg0, arg1); |
| 259 | return -1; |
| 260 | #else /* !HAVE_WIN32_PROC */ |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 261 | char *devname; |
| 262 | int ptm; |
| 263 | pid_t pid; |
| 264 | |
| 265 | ptm = unix_open("/dev/ptmx", O_RDWR); // | O_NOCTTY); |
| 266 | if(ptm < 0){ |
| 267 | printf("[ cannot open /dev/ptmx - %s ]\n",strerror(errno)); |
| 268 | return -1; |
| 269 | } |
| 270 | fcntl(ptm, F_SETFD, FD_CLOEXEC); |
| 271 | |
| 272 | if(grantpt(ptm) || unlockpt(ptm) || |
| 273 | ((devname = (char*) ptsname(ptm)) == 0)){ |
| 274 | printf("[ trouble with /dev/ptmx - %s ]\n", strerror(errno)); |
| 275 | return -1; |
| 276 | } |
| 277 | |
| 278 | pid = fork(); |
| 279 | if(pid < 0) { |
| 280 | printf("- fork failed: %s -\n", strerror(errno)); |
| 281 | return -1; |
| 282 | } |
| 283 | |
| 284 | if(pid == 0){ |
| 285 | int pts; |
| 286 | |
| 287 | setsid(); |
| 288 | |
| 289 | pts = unix_open(devname, O_RDWR); |
| 290 | if(pts < 0) exit(-1); |
| 291 | |
| 292 | dup2(pts, 0); |
| 293 | dup2(pts, 1); |
| 294 | dup2(pts, 2); |
| 295 | |
| 296 | adb_close(ptm); |
| 297 | |
| 298 | execl(cmd, cmd, arg0, arg1, NULL); |
| 299 | fprintf(stderr, "- exec '%s' failed: %s (%d) -\n", |
| 300 | cmd, strerror(errno), errno); |
| 301 | exit(-1); |
| 302 | } else { |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 303 | #if !ADB_HOST |
Mike Lockwood | 3410659 | 2009-05-20 09:14:30 -0400 | [diff] [blame] | 304 | // set child's OOM adjustment to zero |
| 305 | char text[64]; |
| 306 | snprintf(text, sizeof text, "/proc/%d/oom_adj", pid); |
| 307 | int fd = adb_open(text, O_WRONLY); |
| 308 | if (fd >= 0) { |
| 309 | adb_write(fd, "0", 1); |
| 310 | adb_close(fd); |
| 311 | } else { |
| 312 | D("adb: unable to open %s\n", text); |
| 313 | } |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 314 | #endif |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 315 | return ptm; |
| 316 | } |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 317 | #endif /* !HAVE_WIN32_PROC */ |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | #if ADB_HOST |
| 321 | #define SHELL_COMMAND "/bin/sh" |
| 322 | #else |
| 323 | #define SHELL_COMMAND "/system/bin/sh" |
| 324 | #endif |
| 325 | |
| 326 | int service_to_fd(const char *name) |
| 327 | { |
| 328 | int ret = -1; |
| 329 | |
| 330 | if(!strncmp(name, "tcp:", 4)) { |
| 331 | int port = atoi(name + 4); |
| 332 | name = strchr(name + 4, ':'); |
| 333 | if(name == 0) { |
| 334 | ret = socket_loopback_client(port, SOCK_STREAM); |
| 335 | if (ret >= 0) |
| 336 | disable_tcp_nagle(ret); |
| 337 | } else { |
| 338 | #if ADB_HOST |
| 339 | adb_mutex_lock(&dns_lock); |
| 340 | ret = socket_network_client(name + 1, port, SOCK_STREAM); |
| 341 | adb_mutex_unlock(&dns_lock); |
| 342 | #else |
| 343 | return -1; |
| 344 | #endif |
| 345 | } |
| 346 | #ifndef HAVE_WINSOCK /* winsock doesn't implement unix domain sockets */ |
| 347 | } else if(!strncmp(name, "local:", 6)) { |
| 348 | ret = socket_local_client(name + 6, |
| 349 | ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM); |
| 350 | } else if(!strncmp(name, "localreserved:", 14)) { |
| 351 | ret = socket_local_client(name + 14, |
| 352 | ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM); |
| 353 | } else if(!strncmp(name, "localabstract:", 14)) { |
| 354 | ret = socket_local_client(name + 14, |
| 355 | ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM); |
| 356 | } else if(!strncmp(name, "localfilesystem:", 16)) { |
| 357 | ret = socket_local_client(name + 16, |
| 358 | ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM); |
| 359 | #endif |
| 360 | #if ADB_HOST |
| 361 | } else if(!strncmp("dns:", name, 4)){ |
| 362 | char *n = strdup(name + 4); |
| 363 | if(n == 0) return -1; |
| 364 | ret = create_service_thread(dns_service, n); |
| 365 | #else /* !ADB_HOST */ |
| 366 | } else if(!strncmp("dev:", name, 4)) { |
| 367 | ret = unix_open(name + 4, O_RDWR); |
| 368 | } else if(!strncmp(name, "framebuffer:", 12)) { |
| 369 | ret = create_service_thread(framebuffer_service, 0); |
| 370 | } else if(recovery_mode && !strncmp(name, "recover:", 8)) { |
| 371 | ret = create_service_thread(recover_service, (void*) atoi(name + 8)); |
| 372 | } else if (!strncmp(name, "jdwp:", 5)) { |
| 373 | ret = create_jdwp_connection_fd(atoi(name+5)); |
| 374 | } else if (!strncmp(name, "log:", 4)) { |
| 375 | ret = create_service_thread(log_service, get_log_file_path(name + 4)); |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 376 | #endif |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 377 | } else if(!HOST && !strncmp(name, "shell:", 6)) { |
| 378 | if(name[6]) { |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 379 | ret = create_subprocess(SHELL_COMMAND, "-c", name + 6); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 380 | } else { |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 381 | ret = create_subprocess(SHELL_COMMAND, "-", 0); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 382 | } |
Joe Onorato | 590bca7 | 2009-09-03 16:30:43 -0700 | [diff] [blame] | 383 | #if !ADB_HOST |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 384 | } else if(!strncmp(name, "sync:", 5)) { |
| 385 | ret = create_service_thread(file_sync_service, NULL); |
| 386 | } else if(!strncmp(name, "remount:", 8)) { |
| 387 | ret = create_service_thread(remount_service, NULL); |
Mike Lockwood | 12a35ea | 2009-08-04 20:37:51 -0400 | [diff] [blame] | 388 | } else if(!strncmp(name, "reboot:", 7)) { |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 389 | const char* arg = name + 7; |
Mike Lockwood | 12a35ea | 2009-08-04 20:37:51 -0400 | [diff] [blame] | 390 | if (*name == 0) |
| 391 | arg = NULL; |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 392 | ret = create_service_thread(reboot_service, (void *)arg); |
The Android Open Source Project | 9c75340 | 2009-03-13 13:04:37 -0700 | [diff] [blame] | 393 | } else if(!strncmp(name, "root:", 5)) { |
| 394 | ret = create_service_thread(restart_root_service, NULL); |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 395 | } else if(!strncmp(name, "tcpip:", 6)) { |
| 396 | int port; |
| 397 | if (sscanf(name + 6, "%d", &port) == 0) { |
| 398 | port = 0; |
| 399 | } |
| 400 | ret = create_service_thread(restart_tcp_service, (void *)port); |
| 401 | } else if(!strncmp(name, "usb:", 4)) { |
| 402 | ret = create_service_thread(restart_usb_service, NULL); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 403 | #endif |
| 404 | #if 0 |
| 405 | } else if(!strncmp(name, "echo:", 5)){ |
| 406 | ret = create_service_thread(echo_service, 0); |
| 407 | #endif |
| 408 | } |
| 409 | if (ret >= 0) { |
| 410 | close_on_exec(ret); |
| 411 | } |
| 412 | return ret; |
| 413 | } |
| 414 | |
| 415 | #if ADB_HOST |
| 416 | struct state_info { |
| 417 | transport_type transport; |
| 418 | char* serial; |
| 419 | int state; |
| 420 | }; |
| 421 | |
| 422 | static void wait_for_state(int fd, void* cookie) |
| 423 | { |
| 424 | struct state_info* sinfo = cookie; |
| 425 | char* err = "unknown error"; |
| 426 | |
| 427 | D("wait_for_state %d\n", sinfo->state); |
| 428 | |
| 429 | atransport *t = acquire_one_transport(sinfo->state, sinfo->transport, sinfo->serial, &err); |
| 430 | if(t != 0) { |
| 431 | writex(fd, "OKAY", 4); |
| 432 | } else { |
| 433 | sendfailmsg(fd, err); |
| 434 | } |
| 435 | |
| 436 | if (sinfo->serial) |
| 437 | free(sinfo->serial); |
| 438 | free(sinfo); |
| 439 | adb_close(fd); |
| 440 | D("wait_for_state is done\n"); |
| 441 | } |
| 442 | #endif |
| 443 | |
| 444 | #if ADB_HOST |
| 445 | asocket* host_service_to_socket(const char* name, const char *serial) |
| 446 | { |
| 447 | if (!strcmp(name,"track-devices")) { |
| 448 | return create_device_tracker(); |
| 449 | } else if (!strncmp(name, "wait-for-", strlen("wait-for-"))) { |
| 450 | struct state_info* sinfo = malloc(sizeof(struct state_info)); |
| 451 | |
| 452 | if (serial) |
| 453 | sinfo->serial = strdup(serial); |
| 454 | else |
| 455 | sinfo->serial = NULL; |
| 456 | |
| 457 | name += strlen("wait-for-"); |
| 458 | |
| 459 | if (!strncmp(name, "local", strlen("local"))) { |
| 460 | sinfo->transport = kTransportLocal; |
| 461 | sinfo->state = CS_DEVICE; |
| 462 | } else if (!strncmp(name, "usb", strlen("usb"))) { |
| 463 | sinfo->transport = kTransportUsb; |
| 464 | sinfo->state = CS_DEVICE; |
| 465 | } else if (!strncmp(name, "any", strlen("any"))) { |
| 466 | sinfo->transport = kTransportAny; |
| 467 | sinfo->state = CS_DEVICE; |
| 468 | } else { |
| 469 | free(sinfo); |
| 470 | return NULL; |
| 471 | } |
| 472 | |
| 473 | int fd = create_service_thread(wait_for_state, sinfo); |
| 474 | return create_local_socket(fd); |
| 475 | } |
| 476 | return NULL; |
| 477 | } |
| 478 | #endif /* ADB_HOST */ |