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 <stdio.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <string.h> |
| 20 | #include <errno.h> |
| 21 | |
| 22 | #include "sysdeps.h" |
| 23 | #include <sys/types.h> |
| 24 | |
| 25 | #define TRACE_TAG TRACE_TRANSPORT |
| 26 | #include "adb.h" |
| 27 | |
Marcus Comstedt | a143590 | 2010-09-22 22:16:54 +0200 | [diff] [blame] | 28 | #ifdef HAVE_BIG_ENDIAN |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 29 | #define H4(x) (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24) |
| 30 | static inline void fix_endians(apacket *p) |
| 31 | { |
| 32 | p->msg.command = H4(p->msg.command); |
| 33 | p->msg.arg0 = H4(p->msg.arg0); |
| 34 | p->msg.arg1 = H4(p->msg.arg1); |
| 35 | p->msg.data_length = H4(p->msg.data_length); |
| 36 | p->msg.data_check = H4(p->msg.data_check); |
| 37 | p->msg.magic = H4(p->msg.magic); |
| 38 | } |
| 39 | #else |
| 40 | #define fix_endians(p) do {} while (0) |
| 41 | #endif |
| 42 | |
| 43 | #if ADB_HOST |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 44 | /* we keep a list of opened transports. The atransport struct knows to which |
| 45 | * local transport it is connected. The list is used to detect when we're |
| 46 | * trying to connect twice to a given local transport. |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 47 | */ |
| 48 | #define ADB_LOCAL_TRANSPORT_MAX 16 |
| 49 | |
| 50 | ADB_MUTEX_DEFINE( local_transports_lock ); |
| 51 | |
| 52 | static atransport* local_transports[ ADB_LOCAL_TRANSPORT_MAX ]; |
| 53 | #endif /* ADB_HOST */ |
| 54 | |
| 55 | static int remote_read(apacket *p, atransport *t) |
| 56 | { |
| 57 | if(readx(t->sfd, &p->msg, sizeof(amessage))){ |
| 58 | D("remote local: read terminated (message)\n"); |
| 59 | return -1; |
| 60 | } |
| 61 | |
| 62 | fix_endians(p); |
| 63 | |
Marcus Comstedt | a143590 | 2010-09-22 22:16:54 +0200 | [diff] [blame] | 64 | #if 0 && defined HAVE_BIG_ENDIAN |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 65 | D("read remote packet: %04x arg0=%0x arg1=%0x data_length=%0x data_check=%0x magic=%0x\n", |
| 66 | p->msg.command, p->msg.arg0, p->msg.arg1, p->msg.data_length, p->msg.data_check, p->msg.magic); |
| 67 | #endif |
| 68 | if(check_header(p)) { |
| 69 | D("bad header: terminated (data)\n"); |
| 70 | return -1; |
| 71 | } |
| 72 | |
| 73 | if(readx(t->sfd, p->data, p->msg.data_length)){ |
| 74 | D("remote local: terminated (data)\n"); |
| 75 | return -1; |
| 76 | } |
| 77 | |
| 78 | if(check_data(p)) { |
| 79 | D("bad data: terminated (data)\n"); |
| 80 | return -1; |
| 81 | } |
| 82 | |
| 83 | return 0; |
| 84 | } |
| 85 | |
| 86 | static int remote_write(apacket *p, atransport *t) |
| 87 | { |
| 88 | int length = p->msg.data_length; |
| 89 | |
| 90 | fix_endians(p); |
| 91 | |
Marcus Comstedt | a143590 | 2010-09-22 22:16:54 +0200 | [diff] [blame] | 92 | #if 0 && defined HAVE_BIG_ENDIAN |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 93 | D("write remote packet: %04x arg0=%0x arg1=%0x data_length=%0x data_check=%0x magic=%0x\n", |
| 94 | p->msg.command, p->msg.arg0, p->msg.arg1, p->msg.data_length, p->msg.data_check, p->msg.magic); |
| 95 | #endif |
| 96 | if(writex(t->sfd, &p->msg, sizeof(amessage) + length)) { |
| 97 | D("remote local: write terminated\n"); |
| 98 | return -1; |
| 99 | } |
| 100 | |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 105 | int local_connect(int port) { |
| 106 | return local_connect_arbitrary_ports(port-1, port); |
| 107 | } |
| 108 | |
| 109 | int local_connect_arbitrary_ports(int console_port, int adb_port) |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 110 | { |
| 111 | char buf[64]; |
| 112 | int fd = -1; |
| 113 | |
| 114 | #if ADB_HOST |
| 115 | const char *host = getenv("ADBHOST"); |
| 116 | if (host) { |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 117 | fd = socket_network_client(host, adb_port, SOCK_STREAM); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 118 | } |
| 119 | #endif |
| 120 | if (fd < 0) { |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 121 | fd = socket_loopback_client(adb_port, SOCK_STREAM); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | if (fd >= 0) { |
| 125 | D("client: connected on remote on fd %d\n", fd); |
| 126 | close_on_exec(fd); |
| 127 | disable_tcp_nagle(fd); |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 128 | snprintf(buf, sizeof buf, "%s%d", LOCAL_CLIENT_PREFIX, console_port); |
| 129 | register_socket_transport(fd, buf, adb_port, 1); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 130 | return 0; |
| 131 | } |
| 132 | return -1; |
| 133 | } |
| 134 | |
| 135 | |
| 136 | static void *client_socket_thread(void *x) |
| 137 | { |
| 138 | #if ADB_HOST |
Stefan Hilzinger | 92ca4fa | 2010-04-19 12:21:12 +0100 | [diff] [blame] | 139 | int port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT; |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 140 | int count = ADB_LOCAL_TRANSPORT_MAX; |
| 141 | |
| 142 | D("transport: client_socket_thread() starting\n"); |
| 143 | |
| 144 | /* try to connect to any number of running emulator instances */ |
| 145 | /* this is only done when ADB starts up. later, each new emulator */ |
| 146 | /* will send a message to ADB to indicate that is is starting up */ |
| 147 | for ( ; count > 0; count--, port += 2 ) { |
| 148 | (void) local_connect(port); |
| 149 | } |
| 150 | #endif |
| 151 | return 0; |
| 152 | } |
| 153 | |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 154 | static void *server_socket_thread(void * arg) |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 155 | { |
| 156 | int serverfd, fd; |
| 157 | struct sockaddr addr; |
| 158 | socklen_t alen; |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 159 | int port = (int)arg; |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 160 | |
| 161 | D("transport: server_socket_thread() starting\n"); |
| 162 | serverfd = -1; |
| 163 | for(;;) { |
| 164 | if(serverfd == -1) { |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 165 | serverfd = socket_inaddr_any_server(port, SOCK_STREAM); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 166 | if(serverfd < 0) { |
| 167 | D("server: cannot bind socket yet\n"); |
| 168 | adb_sleep_ms(1000); |
| 169 | continue; |
| 170 | } |
| 171 | close_on_exec(serverfd); |
| 172 | } |
| 173 | |
| 174 | alen = sizeof(addr); |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 175 | D("server: trying to get new connection from %d\n", port); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 176 | fd = adb_socket_accept(serverfd, &addr, &alen); |
| 177 | if(fd >= 0) { |
| 178 | D("server: new connection on fd %d\n", fd); |
| 179 | close_on_exec(fd); |
| 180 | disable_tcp_nagle(fd); |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 181 | register_socket_transport(fd, "host", port, 1); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 182 | } |
| 183 | } |
| 184 | D("transport: server_socket_thread() exiting\n"); |
| 185 | return 0; |
| 186 | } |
| 187 | |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 188 | void local_init(int port) |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 189 | { |
| 190 | adb_thread_t thr; |
| 191 | void* (*func)(void *); |
| 192 | |
| 193 | if(HOST) { |
| 194 | func = client_socket_thread; |
| 195 | } else { |
| 196 | func = server_socket_thread; |
| 197 | } |
| 198 | |
| 199 | D("transport: local %s init\n", HOST ? "client" : "server"); |
| 200 | |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 201 | if(adb_thread_create(&thr, func, (void *)port)) { |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 202 | fatal_errno("cannot create local socket %s thread", |
| 203 | HOST ? "client" : "server"); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | static void remote_kick(atransport *t) |
| 208 | { |
| 209 | int fd = t->sfd; |
| 210 | t->sfd = -1; |
Mike Lockwood | 81ffe17 | 2009-10-11 23:04:18 -0400 | [diff] [blame] | 211 | adb_shutdown(fd); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 212 | adb_close(fd); |
| 213 | |
| 214 | #if ADB_HOST |
| 215 | if(HOST) { |
| 216 | int nn; |
| 217 | adb_mutex_lock( &local_transports_lock ); |
| 218 | for (nn = 0; nn < ADB_LOCAL_TRANSPORT_MAX; nn++) { |
| 219 | if (local_transports[nn] == t) { |
| 220 | local_transports[nn] = NULL; |
| 221 | break; |
| 222 | } |
| 223 | } |
| 224 | adb_mutex_unlock( &local_transports_lock ); |
| 225 | } |
| 226 | #endif |
| 227 | } |
| 228 | |
| 229 | static void remote_close(atransport *t) |
| 230 | { |
| 231 | adb_close(t->fd); |
| 232 | } |
| 233 | |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 234 | |
| 235 | #if ADB_HOST |
| 236 | /* Only call this function if you already hold local_transports_lock. */ |
| 237 | atransport* find_emulator_transport_by_adb_port_locked(int adb_port) |
| 238 | { |
| 239 | int i; |
| 240 | for (i = 0; i < ADB_LOCAL_TRANSPORT_MAX; i++) { |
| 241 | if (local_transports[i] && local_transports[i]->adb_port == adb_port) { |
| 242 | return local_transports[i]; |
| 243 | } |
| 244 | } |
| 245 | return NULL; |
| 246 | } |
| 247 | |
| 248 | atransport* find_emulator_transport_by_adb_port(int adb_port) |
| 249 | { |
| 250 | adb_mutex_lock( &local_transports_lock ); |
| 251 | atransport* result = find_emulator_transport_by_adb_port_locked(adb_port); |
| 252 | adb_mutex_unlock( &local_transports_lock ); |
| 253 | return result; |
| 254 | } |
| 255 | |
| 256 | /* Only call this function if you already hold local_transports_lock. */ |
| 257 | int get_available_local_transport_index_locked() |
| 258 | { |
| 259 | int i; |
| 260 | for (i = 0; i < ADB_LOCAL_TRANSPORT_MAX; i++) { |
| 261 | if (local_transports[i] == NULL) { |
| 262 | return i; |
| 263 | } |
| 264 | } |
| 265 | return -1; |
| 266 | } |
| 267 | |
| 268 | int get_available_local_transport_index() |
| 269 | { |
| 270 | adb_mutex_lock( &local_transports_lock ); |
| 271 | int result = get_available_local_transport_index_locked(); |
| 272 | adb_mutex_unlock( &local_transports_lock ); |
| 273 | return result; |
| 274 | } |
| 275 | #endif |
| 276 | |
| 277 | int init_socket_transport(atransport *t, int s, int adb_port, int local) |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 278 | { |
| 279 | int fail = 0; |
| 280 | |
| 281 | t->kick = remote_kick; |
| 282 | t->close = remote_close; |
| 283 | t->read_from_remote = remote_read; |
| 284 | t->write_to_remote = remote_write; |
| 285 | t->sfd = s; |
| 286 | t->sync_token = 1; |
| 287 | t->connection_state = CS_OFFLINE; |
| 288 | t->type = kTransportLocal; |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 289 | t->adb_port = 0; |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 290 | |
| 291 | #if ADB_HOST |
Mike Lockwood | 26b88e3 | 2009-08-24 15:58:40 -0700 | [diff] [blame] | 292 | if (HOST && local) { |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 293 | adb_mutex_lock( &local_transports_lock ); |
| 294 | { |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 295 | t->adb_port = adb_port; |
| 296 | atransport* existing_transport = |
| 297 | find_emulator_transport_by_adb_port_locked(adb_port); |
| 298 | int index = get_available_local_transport_index_locked(); |
| 299 | if (existing_transport != NULL) { |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 300 | D("local transport for port %d already registered (%p)?\n", |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 301 | adb_port, existing_transport); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 302 | fail = -1; |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 303 | } else if (index < 0) { |
| 304 | // Too many emulators. |
| 305 | D("cannot register more emulators. Maximum is %d\n", |
| 306 | ADB_LOCAL_TRANSPORT_MAX); |
| 307 | fail = -1; |
| 308 | } else { |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 309 | local_transports[index] = t; |
Stefan Hilzinger | 1ec0342 | 2010-04-26 10:17:43 +0100 | [diff] [blame] | 310 | } |
| 311 | } |
| 312 | adb_mutex_unlock( &local_transports_lock ); |
The Android Open Source Project | 9ca14dc | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 313 | } |
| 314 | #endif |
| 315 | return fail; |
| 316 | } |