/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include "sysdeps.h" #include #define TRACE_TAG TRACE_TRANSPORT #include "adb.h" #ifdef __ppc__ #define H4(x) (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24) static inline void fix_endians(apacket *p) { p->msg.command = H4(p->msg.command); p->msg.arg0 = H4(p->msg.arg0); p->msg.arg1 = H4(p->msg.arg1); p->msg.data_length = H4(p->msg.data_length); p->msg.data_check = H4(p->msg.data_check); p->msg.magic = H4(p->msg.magic); } #else #define fix_endians(p) do {} while (0) #endif #if ADB_HOST /* we keep a list of opened transports, transport 0 is bound to 5555, * transport 1 to 5557, .. transport n to 5555 + n*2. the list is used * to detect when we're trying to connect twice to a given local transport */ #define ADB_LOCAL_TRANSPORT_MAX 16 ADB_MUTEX_DEFINE( local_transports_lock ); static atransport* local_transports[ ADB_LOCAL_TRANSPORT_MAX ]; #endif /* ADB_HOST */ static int remote_read(apacket *p, atransport *t) { if(readx(t->sfd, &p->msg, sizeof(amessage))){ D("remote local: read terminated (message)\n"); return -1; } fix_endians(p); #if 0 && defined __ppc__ D("read remote packet: %04x arg0=%0x arg1=%0x data_length=%0x data_check=%0x magic=%0x\n", p->msg.command, p->msg.arg0, p->msg.arg1, p->msg.data_length, p->msg.data_check, p->msg.magic); #endif if(check_header(p)) { D("bad header: terminated (data)\n"); return -1; } if(readx(t->sfd, p->data, p->msg.data_length)){ D("remote local: terminated (data)\n"); return -1; } if(check_data(p)) { D("bad data: terminated (data)\n"); return -1; } return 0; } static int remote_write(apacket *p, atransport *t) { int length = p->msg.data_length; fix_endians(p); #if 0 && defined __ppc__ D("write remote packet: %04x arg0=%0x arg1=%0x data_length=%0x data_check=%0x magic=%0x\n", p->msg.command, p->msg.arg0, p->msg.arg1, p->msg.data_length, p->msg.data_check, p->msg.magic); #endif if(writex(t->sfd, &p->msg, sizeof(amessage) + length)) { D("remote local: write terminated\n"); return -1; } return 0; } int local_connect(int port) { char buf[64]; int fd = -1; #if ADB_HOST const char *host = getenv("ADBHOST"); if (host) { fd = socket_network_client(host, port, SOCK_STREAM); } #endif if (fd < 0) { fd = socket_loopback_client(port, SOCK_STREAM); } if (fd >= 0) { D("client: connected on remote on fd %d\n", fd); close_on_exec(fd); disable_tcp_nagle(fd); snprintf(buf, sizeof buf, "%s%d", LOCAL_CLIENT_PREFIX, port - 1); register_socket_transport(fd, buf, port, 1); return 0; } return -1; } static void *client_socket_thread(void *x) { #if ADB_HOST int port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT; int count = ADB_LOCAL_TRANSPORT_MAX; D("transport: client_socket_thread() starting\n"); /* try to connect to any number of running emulator instances */ /* this is only done when ADB starts up. later, each new emulator */ /* will send a message to ADB to indicate that is is starting up */ for ( ; count > 0; count--, port += 2 ) { (void) local_connect(port); } #endif return 0; } static void *server_socket_thread(void * arg) { int serverfd, fd; struct sockaddr addr; socklen_t alen; int port = (int)arg; D("transport: server_socket_thread() starting\n"); serverfd = -1; for(;;) { if(serverfd == -1) { serverfd = socket_inaddr_any_server(port, SOCK_STREAM); if(serverfd < 0) { D("server: cannot bind socket yet\n"); adb_sleep_ms(1000); continue; } close_on_exec(serverfd); } alen = sizeof(addr); D("server: trying to get new connection from %d\n", port); fd = adb_socket_accept(serverfd, &addr, &alen); if(fd >= 0) { D("server: new connection on fd %d\n", fd); close_on_exec(fd); disable_tcp_nagle(fd); register_socket_transport(fd, "host", port, 1); } } D("transport: server_socket_thread() exiting\n"); return 0; } void local_init(int port) { adb_thread_t thr; void* (*func)(void *); if(HOST) { func = client_socket_thread; } else { func = server_socket_thread; } D("transport: local %s init\n", HOST ? "client" : "server"); if(adb_thread_create(&thr, func, (void *)port)) { fatal_errno("cannot create local socket %s thread", HOST ? "client" : "server"); } } static void remote_kick(atransport *t) { int fd = t->sfd; t->sfd = -1; adb_shutdown(fd); adb_close(fd); #if ADB_HOST if(HOST) { int nn; adb_mutex_lock( &local_transports_lock ); for (nn = 0; nn < ADB_LOCAL_TRANSPORT_MAX; nn++) { if (local_transports[nn] == t) { local_transports[nn] = NULL; break; } } adb_mutex_unlock( &local_transports_lock ); } #endif } static void remote_close(atransport *t) { adb_close(t->fd); } int init_socket_transport(atransport *t, int s, int port, int local) { int fail = 0; t->kick = remote_kick; t->close = remote_close; t->read_from_remote = remote_read; t->write_to_remote = remote_write; t->sfd = s; t->sync_token = 1; t->connection_state = CS_OFFLINE; t->type = kTransportLocal; #if ADB_HOST if (HOST && local) { adb_mutex_lock( &local_transports_lock ); { int index = (port - DEFAULT_ADB_LOCAL_TRANSPORT_PORT)/2; if (!(port & 1) || index < 0 || index >= ADB_LOCAL_TRANSPORT_MAX) { D("bad local transport port number: %d\n", port); fail = -1; } else if (local_transports[index] != NULL) { D("local transport for port %d already registered (%p)?\n", port, local_transports[index]); fail = -1; } else local_transports[index] = t; } adb_mutex_unlock( &local_transports_lock ); } #endif return fail; }