The Android Open Source Project | dd7bc33 | 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 | |
| 28 | #ifdef __ppc__ |
| 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 |
| 44 | /* we keep a list of opened transports, transport 0 is bound to 5555, |
| 45 | * transport 1 to 5557, .. transport n to 5555 + n*2. the list is used |
| 46 | * to detect when we're trying to connect twice to a given local transport |
| 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 | |
| 64 | #if 0 && defined __ppc__ |
| 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 | |
| 92 | #if 0 && defined __ppc__ |
| 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 | |
| 105 | int local_connect(int port) |
| 106 | { |
| 107 | char buf[64]; |
| 108 | int fd = -1; |
| 109 | |
| 110 | #if ADB_HOST |
| 111 | const char *host = getenv("ADBHOST"); |
| 112 | if (host) { |
| 113 | fd = socket_network_client(host, port, SOCK_STREAM); |
| 114 | } |
| 115 | #endif |
| 116 | if (fd < 0) { |
| 117 | fd = socket_loopback_client(port, SOCK_STREAM); |
| 118 | } |
| 119 | |
| 120 | if (fd >= 0) { |
| 121 | D("client: connected on remote on fd %d\n", fd); |
| 122 | close_on_exec(fd); |
| 123 | disable_tcp_nagle(fd); |
| 124 | snprintf(buf, sizeof buf, "%s%d", LOCAL_CLIENT_PREFIX, port - 1); |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 125 | register_socket_transport(fd, buf, port, 1); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 126 | return 0; |
| 127 | } |
| 128 | return -1; |
| 129 | } |
| 130 | |
| 131 | |
| 132 | static void *client_socket_thread(void *x) |
| 133 | { |
| 134 | #if ADB_HOST |
| 135 | int port = ADB_LOCAL_TRANSPORT_PORT; |
| 136 | int count = ADB_LOCAL_TRANSPORT_MAX; |
| 137 | |
| 138 | D("transport: client_socket_thread() starting\n"); |
| 139 | |
| 140 | /* try to connect to any number of running emulator instances */ |
| 141 | /* this is only done when ADB starts up. later, each new emulator */ |
| 142 | /* will send a message to ADB to indicate that is is starting up */ |
| 143 | for ( ; count > 0; count--, port += 2 ) { |
| 144 | (void) local_connect(port); |
| 145 | } |
| 146 | #endif |
| 147 | return 0; |
| 148 | } |
| 149 | |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 150 | static void *server_socket_thread(void * arg) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 151 | { |
| 152 | int serverfd, fd; |
| 153 | struct sockaddr addr; |
| 154 | socklen_t alen; |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 155 | int port = (int)arg; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 156 | |
| 157 | D("transport: server_socket_thread() starting\n"); |
| 158 | serverfd = -1; |
| 159 | for(;;) { |
| 160 | if(serverfd == -1) { |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 161 | serverfd = socket_inaddr_any_server(port, SOCK_STREAM); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 162 | if(serverfd < 0) { |
| 163 | D("server: cannot bind socket yet\n"); |
| 164 | adb_sleep_ms(1000); |
| 165 | continue; |
| 166 | } |
| 167 | close_on_exec(serverfd); |
| 168 | } |
| 169 | |
| 170 | alen = sizeof(addr); |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 171 | D("server: trying to get new connection from %d\n", port); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 172 | fd = adb_socket_accept(serverfd, &addr, &alen); |
| 173 | if(fd >= 0) { |
| 174 | D("server: new connection on fd %d\n", fd); |
| 175 | close_on_exec(fd); |
| 176 | disable_tcp_nagle(fd); |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 177 | register_socket_transport(fd, "host", port, 1); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 178 | } |
| 179 | } |
| 180 | D("transport: server_socket_thread() exiting\n"); |
| 181 | return 0; |
| 182 | } |
| 183 | |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 184 | void local_init(int port) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 185 | { |
| 186 | adb_thread_t thr; |
| 187 | void* (*func)(void *); |
| 188 | |
| 189 | if(HOST) { |
| 190 | func = client_socket_thread; |
| 191 | } else { |
| 192 | func = server_socket_thread; |
| 193 | } |
| 194 | |
| 195 | D("transport: local %s init\n", HOST ? "client" : "server"); |
| 196 | |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 197 | if(adb_thread_create(&thr, func, (void *)port)) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 198 | fatal_errno("cannot create local socket %s thread", |
| 199 | HOST ? "client" : "server"); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | static void remote_kick(atransport *t) |
| 204 | { |
| 205 | int fd = t->sfd; |
| 206 | t->sfd = -1; |
| 207 | adb_close(fd); |
| 208 | |
| 209 | #if ADB_HOST |
| 210 | if(HOST) { |
| 211 | int nn; |
| 212 | adb_mutex_lock( &local_transports_lock ); |
| 213 | for (nn = 0; nn < ADB_LOCAL_TRANSPORT_MAX; nn++) { |
| 214 | if (local_transports[nn] == t) { |
| 215 | local_transports[nn] = NULL; |
| 216 | break; |
| 217 | } |
| 218 | } |
| 219 | adb_mutex_unlock( &local_transports_lock ); |
| 220 | } |
| 221 | #endif |
| 222 | } |
| 223 | |
| 224 | static void remote_close(atransport *t) |
| 225 | { |
| 226 | adb_close(t->fd); |
| 227 | } |
| 228 | |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 229 | int init_socket_transport(atransport *t, int s, int port, int local) |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 230 | { |
| 231 | int fail = 0; |
| 232 | |
| 233 | t->kick = remote_kick; |
| 234 | t->close = remote_close; |
| 235 | t->read_from_remote = remote_read; |
| 236 | t->write_to_remote = remote_write; |
| 237 | t->sfd = s; |
| 238 | t->sync_token = 1; |
| 239 | t->connection_state = CS_OFFLINE; |
| 240 | t->type = kTransportLocal; |
| 241 | |
| 242 | #if ADB_HOST |
Mike Lockwood | ff19670 | 2009-08-24 15:58:40 -0700 | [diff] [blame^] | 243 | if (HOST && local) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 244 | adb_mutex_lock( &local_transports_lock ); |
| 245 | { |
| 246 | int index = (port - ADB_LOCAL_TRANSPORT_PORT)/2; |
| 247 | |
| 248 | if (!(port & 1) || index < 0 || index >= ADB_LOCAL_TRANSPORT_MAX) { |
| 249 | D("bad local transport port number: %d\n", port); |
| 250 | fail = -1; |
| 251 | } |
| 252 | else if (local_transports[index] != NULL) { |
| 253 | D("local transport for port %d already registered (%p)?\n", |
| 254 | port, local_transports[index]); |
| 255 | fail = -1; |
| 256 | } |
| 257 | else |
| 258 | local_transports[index] = t; |
| 259 | } |
| 260 | adb_mutex_unlock( &local_transports_lock ); |
| 261 | } |
| 262 | #endif |
| 263 | return fail; |
| 264 | } |