/* * 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. */ #define TRACE_TAG TRACE_ADB #include "sysdeps.h" #include "adb.h" #include <ctype.h> #include <errno.h> #include <stdarg.h> #include <stddef.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/time.h> #include <time.h> #include <string> #include <base/stringprintf.h> #include <base/strings.h> #include "adb_auth.h" #include "adb_io.h" #include "adb_listeners.h" #include "transport.h" #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) #if !ADB_HOST #include <cutils/properties.h> #include <sys/capability.h> #include <sys/mount.h> #endif ADB_MUTEX_DEFINE( D_lock ); int HOST = 0; #if !ADB_HOST const char *adb_device_banner = "device"; #endif void fatal(const char *fmt, ...) { va_list ap; va_start(ap, fmt); fprintf(stderr, "error: "); vfprintf(stderr, fmt, ap); fprintf(stderr, "\n"); va_end(ap); exit(-1); } void fatal_errno(const char *fmt, ...) { va_list ap; va_start(ap, fmt); fprintf(stderr, "error: %s: ", strerror(errno)); vfprintf(stderr, fmt, ap); fprintf(stderr, "\n"); va_end(ap); exit(-1); } #if !ADB_HOST void start_device_log(void) { struct tm now; time_t t; tzset(); time(&t); localtime_r(&t, &now); char timestamp[PATH_MAX]; strftime(timestamp, sizeof(timestamp), "%Y-%m-%d-%H-%M-%S", &now); std::string path = android::base::StringPrintf("/data/adb/adb-%s-%d", timestamp, getpid()); int fd = unix_open(path.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0640); if (fd == -1) { return; } // redirect stdout and stderr to the log file dup2(fd, STDOUT_FILENO); dup2(fd, STDERR_FILENO); fprintf(stderr, "--- adb starting (pid %d) ---\n", getpid()); adb_close(fd); } #endif int adb_trace_mask; std::string get_trace_setting_from_env() { const char* setting = getenv("ADB_TRACE"); if (setting == nullptr) { setting = ""; } return std::string(setting); } #if !ADB_HOST std::string get_trace_setting_from_prop() { char buf[PROPERTY_VALUE_MAX]; property_get("persist.adb.trace_mask", buf, ""); return std::string(buf); } #endif std::string get_trace_setting() { #if ADB_HOST return get_trace_setting_from_env(); #else return get_trace_setting_from_prop(); #endif } // Split the comma/space/colum/semi-column separated list of tags from the trace // setting and build the trace mask from it. note that '1' and 'all' are special // cases to enable all tracing. // // adb's trace setting comes from the ADB_TRACE environment variable, whereas // adbd's comes from the system property persist.adb.trace_mask. void adb_trace_init() { const std::string trace_setting = get_trace_setting(); static const struct { const char* tag; int flag; } tags[] = { { "1", 0 }, { "all", 0 }, { "adb", TRACE_ADB }, { "sockets", TRACE_SOCKETS }, { "packets", TRACE_PACKETS }, { "rwx", TRACE_RWX }, { "usb", TRACE_USB }, { "sync", TRACE_SYNC }, { "sysdeps", TRACE_SYSDEPS }, { "transport", TRACE_TRANSPORT }, { "jdwp", TRACE_JDWP }, { "services", TRACE_SERVICES }, { "auth", TRACE_AUTH }, { NULL, 0 } }; if (trace_setting.empty()) { return; } // Use a comma/colon/semi-colon/space separated list const char* p = trace_setting.c_str(); while (*p) { int len, tagn; const char* q = strpbrk(p, " ,:;"); if (q == NULL) { q = p + strlen(p); } len = q - p; for (tagn = 0; tags[tagn].tag != NULL; tagn++) { int taglen = strlen(tags[tagn].tag); if (len == taglen && !memcmp(tags[tagn].tag, p, len)) { int flag = tags[tagn].flag; if (flag == 0) { adb_trace_mask = ~0; return; } adb_trace_mask |= (1 << flag); break; } } p = q; if (*p) p++; } #if !ADB_HOST start_device_log(); #endif } apacket* get_apacket(void) { apacket* p = reinterpret_cast<apacket*>(malloc(sizeof(apacket))); if (p == nullptr) { fatal("failed to allocate an apacket"); } memset(p, 0, sizeof(apacket) - MAX_PAYLOAD); return p; } void put_apacket(apacket *p) { free(p); } void handle_online(atransport *t) { D("adb: online\n"); t->online = 1; } void handle_offline(atransport *t) { D("adb: offline\n"); //Close the associated usb t->online = 0; run_transport_disconnects(t); } #if DEBUG_PACKETS #define DUMPMAX 32 void print_packet(const char *label, apacket *p) { char *tag; char *x; unsigned count; switch(p->msg.command){ case A_SYNC: tag = "SYNC"; break; case A_CNXN: tag = "CNXN" ; break; case A_OPEN: tag = "OPEN"; break; case A_OKAY: tag = "OKAY"; break; case A_CLSE: tag = "CLSE"; break; case A_WRTE: tag = "WRTE"; break; case A_AUTH: tag = "AUTH"; break; default: tag = "????"; break; } fprintf(stderr, "%s: %s %08x %08x %04x \"", label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length); count = p->msg.data_length; x = (char*) p->data; if(count > DUMPMAX) { count = DUMPMAX; tag = "\n"; } else { tag = "\"\n"; } while(count-- > 0){ if((*x >= ' ') && (*x < 127)) { fputc(*x, stderr); } else { fputc('.', stderr); } x++; } fputs(tag, stderr); } #endif static void send_ready(unsigned local, unsigned remote, atransport *t) { D("Calling send_ready \n"); apacket *p = get_apacket(); p->msg.command = A_OKAY; p->msg.arg0 = local; p->msg.arg1 = remote; send_packet(p, t); } static void send_close(unsigned local, unsigned remote, atransport *t) { D("Calling send_close \n"); apacket *p = get_apacket(); p->msg.command = A_CLSE; p->msg.arg0 = local; p->msg.arg1 = remote; send_packet(p, t); } static size_t fill_connect_data(char *buf, size_t bufsize) { #if ADB_HOST return snprintf(buf, bufsize, "host::") + 1; #else static const char *cnxn_props[] = { "ro.product.name", "ro.product.model", "ro.product.device", }; static const int num_cnxn_props = ARRAY_SIZE(cnxn_props); int i; size_t remaining = bufsize; size_t len; len = snprintf(buf, remaining, "%s::", adb_device_banner); remaining -= len; buf += len; for (i = 0; i < num_cnxn_props; i++) { char value[PROPERTY_VALUE_MAX]; property_get(cnxn_props[i], value, ""); len = snprintf(buf, remaining, "%s=%s;", cnxn_props[i], value); remaining -= len; buf += len; } return bufsize - remaining + 1; #endif } void send_connect(atransport *t) { D("Calling send_connect \n"); apacket *cp = get_apacket(); cp->msg.command = A_CNXN; cp->msg.arg0 = A_VERSION; cp->msg.arg1 = MAX_PAYLOAD; cp->msg.data_length = fill_connect_data((char *)cp->data, sizeof(cp->data)); send_packet(cp, t); } // qual_overwrite is used to overwrite a qualifier string. dst is a // pointer to a char pointer. It is assumed that if *dst is non-NULL, it // was malloc'ed and needs to freed. *dst will be set to a dup of src. // TODO: switch to std::string for these atransport fields instead. static void qual_overwrite(char** dst, const std::string& src) { free(*dst); *dst = strdup(src.c_str()); } void parse_banner(const char* banner, atransport* t) { D("parse_banner: %s\n", banner); // The format is something like: // "device::ro.product.name=x;ro.product.model=y;ro.product.device=z;". std::vector<std::string> pieces = android::base::Split(banner, ":"); if (pieces.size() > 2) { const std::string& props = pieces[2]; for (auto& prop : android::base::Split(props, ";")) { // The list of properties was traditionally ;-terminated rather than ;-separated. if (prop.empty()) continue; std::vector<std::string> key_value = android::base::Split(prop, "="); if (key_value.size() != 2) continue; const std::string& key = key_value[0]; const std::string& value = key_value[1]; if (key == "ro.product.name") { qual_overwrite(&t->product, value); } else if (key == "ro.product.model") { qual_overwrite(&t->model, value); } else if (key == "ro.product.device") { qual_overwrite(&t->device, value); } } } const std::string& type = pieces[0]; if (type == "bootloader") { D("setting connection_state to CS_BOOTLOADER\n"); t->connection_state = CS_BOOTLOADER; update_transports(); } else if (type == "device") { D("setting connection_state to CS_DEVICE\n"); t->connection_state = CS_DEVICE; update_transports(); } else if (type == "recovery") { D("setting connection_state to CS_RECOVERY\n"); t->connection_state = CS_RECOVERY; update_transports(); } else if (type == "sideload") { D("setting connection_state to CS_SIDELOAD\n"); t->connection_state = CS_SIDELOAD; update_transports(); } else { D("setting connection_state to CS_HOST\n"); t->connection_state = CS_HOST; } } void handle_packet(apacket *p, atransport *t) { asocket *s; D("handle_packet() %c%c%c%c\n", ((char*) (&(p->msg.command)))[0], ((char*) (&(p->msg.command)))[1], ((char*) (&(p->msg.command)))[2], ((char*) (&(p->msg.command)))[3]); print_packet("recv", p); switch(p->msg.command){ case A_SYNC: if(p->msg.arg0){ send_packet(p, t); if(HOST) send_connect(t); } else { t->connection_state = CS_OFFLINE; handle_offline(t); send_packet(p, t); } return; case A_CNXN: /* CONNECT(version, maxdata, "system-id-string") */ /* XXX verify version, etc */ if(t->connection_state != CS_OFFLINE) { t->connection_state = CS_OFFLINE; handle_offline(t); } parse_banner(reinterpret_cast<const char*>(p->data), t); if (HOST || !auth_required) { handle_online(t); if (!HOST) send_connect(t); } else { send_auth_request(t); } break; case A_AUTH: if (p->msg.arg0 == ADB_AUTH_TOKEN) { t->connection_state = CS_UNAUTHORIZED; t->key = adb_auth_nextkey(t->key); if (t->key) { send_auth_response(p->data, p->msg.data_length, t); } else { /* No more private keys to try, send the public key */ send_auth_publickey(t); } } else if (p->msg.arg0 == ADB_AUTH_SIGNATURE) { if (adb_auth_verify(t->token, p->data, p->msg.data_length)) { adb_auth_verified(t); t->failed_auth_attempts = 0; } else { if (t->failed_auth_attempts++ > 10) adb_sleep_ms(1000); send_auth_request(t); } } else if (p->msg.arg0 == ADB_AUTH_RSAPUBLICKEY) { adb_auth_confirm_key(p->data, p->msg.data_length, t); } break; case A_OPEN: /* OPEN(local-id, 0, "destination") */ if (t->online && p->msg.arg0 != 0 && p->msg.arg1 == 0) { char *name = (char*) p->data; name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0; s = create_local_service_socket(name); if(s == 0) { send_close(0, p->msg.arg0, t); } else { s->peer = create_remote_socket(p->msg.arg0, t); s->peer->peer = s; send_ready(s->id, s->peer->id, t); s->ready(s); } } break; case A_OKAY: /* READY(local-id, remote-id, "") */ if (t->online && p->msg.arg0 != 0 && p->msg.arg1 != 0) { if((s = find_local_socket(p->msg.arg1, 0))) { if(s->peer == 0) { /* On first READY message, create the connection. */ s->peer = create_remote_socket(p->msg.arg0, t); s->peer->peer = s; s->ready(s); } else if (s->peer->id == p->msg.arg0) { /* Other READY messages must use the same local-id */ s->ready(s); } else { D("Invalid A_OKAY(%d,%d), expected A_OKAY(%d,%d) on transport %s\n", p->msg.arg0, p->msg.arg1, s->peer->id, p->msg.arg1, t->serial); } } } break; case A_CLSE: /* CLOSE(local-id, remote-id, "") or CLOSE(0, remote-id, "") */ if (t->online && p->msg.arg1 != 0) { if((s = find_local_socket(p->msg.arg1, p->msg.arg0))) { /* According to protocol.txt, p->msg.arg0 might be 0 to indicate * a failed OPEN only. However, due to a bug in previous ADB * versions, CLOSE(0, remote-id, "") was also used for normal * CLOSE() operations. * * This is bad because it means a compromised adbd could * send packets to close connections between the host and * other devices. To avoid this, only allow this if the local * socket has a peer on the same transport. */ if (p->msg.arg0 == 0 && s->peer && s->peer->transport != t) { D("Invalid A_CLSE(0, %u) from transport %s, expected transport %s\n", p->msg.arg1, t->serial, s->peer->transport->serial); } else { s->close(s); } } } break; case A_WRTE: /* WRITE(local-id, remote-id, <data>) */ if (t->online && p->msg.arg0 != 0 && p->msg.arg1 != 0) { if((s = find_local_socket(p->msg.arg1, p->msg.arg0))) { unsigned rid = p->msg.arg0; p->len = p->msg.data_length; if(s->enqueue(s, p) == 0) { D("Enqueue the socket\n"); send_ready(s->id, rid, t); } return; } } break; default: printf("handle_packet: what is %08x?!\n", p->msg.command); } put_apacket(p); } #if ADB_HOST int launch_server(int server_port) { #if defined(_WIN32) /* we need to start the server in the background */ /* we create a PIPE that will be used to wait for the server's "OK" */ /* message since the pipe handles must be inheritable, we use a */ /* security attribute */ HANDLE pipe_read, pipe_write; HANDLE stdout_handle, stderr_handle; SECURITY_ATTRIBUTES sa; STARTUPINFO startup; PROCESS_INFORMATION pinfo; char program_path[ MAX_PATH ]; int ret; sa.nLength = sizeof(sa); sa.lpSecurityDescriptor = NULL; sa.bInheritHandle = TRUE; /* create pipe, and ensure its read handle isn't inheritable */ ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 ); if (!ret) { fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() ); return -1; } SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 ); /* Some programs want to launch an adb command and collect its output by * calling CreateProcess with inheritable stdout/stderr handles, then * using read() to get its output. When this happens, the stdout/stderr * handles passed to the adb client process will also be inheritable. * When starting the adb server here, care must be taken to reset them * to non-inheritable. * Otherwise, something bad happens: even if the adb command completes, * the calling process is stuck while read()-ing from the stdout/stderr * descriptors, because they're connected to corresponding handles in the * adb server process (even if the latter never uses/writes to them). */ stdout_handle = GetStdHandle( STD_OUTPUT_HANDLE ); stderr_handle = GetStdHandle( STD_ERROR_HANDLE ); if (stdout_handle != INVALID_HANDLE_VALUE) { SetHandleInformation( stdout_handle, HANDLE_FLAG_INHERIT, 0 ); } if (stderr_handle != INVALID_HANDLE_VALUE) { SetHandleInformation( stderr_handle, HANDLE_FLAG_INHERIT, 0 ); } ZeroMemory( &startup, sizeof(startup) ); startup.cb = sizeof(startup); startup.hStdInput = GetStdHandle( STD_INPUT_HANDLE ); startup.hStdOutput = pipe_write; startup.hStdError = GetStdHandle( STD_ERROR_HANDLE ); startup.dwFlags = STARTF_USESTDHANDLES; ZeroMemory( &pinfo, sizeof(pinfo) ); /* get path of current program */ GetModuleFileName( NULL, program_path, sizeof(program_path) ); char args[64]; snprintf(args, sizeof(args), "adb -P %d fork-server server", server_port); ret = CreateProcess( program_path, /* program path */ args, /* the fork-server argument will set the debug = 2 in the child */ NULL, /* process handle is not inheritable */ NULL, /* thread handle is not inheritable */ TRUE, /* yes, inherit some handles */ DETACHED_PROCESS, /* the new process doesn't have a console */ NULL, /* use parent's environment block */ NULL, /* use parent's starting directory */ &startup, /* startup info, i.e. std handles */ &pinfo ); CloseHandle( pipe_write ); if (!ret) { fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() ); CloseHandle( pipe_read ); return -1; } CloseHandle( pinfo.hProcess ); CloseHandle( pinfo.hThread ); /* wait for the "OK\n" message */ { char temp[3]; DWORD count; ret = ReadFile( pipe_read, temp, 3, &count, NULL ); CloseHandle( pipe_read ); if ( !ret ) { fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() ); return -1; } if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { fprintf(stderr, "ADB server didn't ACK\n" ); return -1; } } #else /* !defined(_WIN32) */ char path[PATH_MAX]; int fd[2]; // set up a pipe so the child can tell us when it is ready. // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child. if (pipe(fd)) { fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno); return -1; } get_my_path(path, PATH_MAX); pid_t pid = fork(); if(pid < 0) return -1; if (pid == 0) { // child side of the fork // redirect stderr to the pipe // we use stderr instead of stdout due to stdout's buffering behavior. adb_close(fd[0]); dup2(fd[1], STDERR_FILENO); adb_close(fd[1]); char str_port[30]; snprintf(str_port, sizeof(str_port), "%d", server_port); // child process int result = execl(path, "adb", "-P", str_port, "fork-server", "server", NULL); // this should not return fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno); } else { // parent side of the fork char temp[3]; temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C'; // wait for the "OK\n" message adb_close(fd[1]); int ret = adb_read(fd[0], temp, 3); int saved_errno = errno; adb_close(fd[0]); if (ret < 0) { fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", saved_errno); return -1; } if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') { fprintf(stderr, "ADB server didn't ACK\n" ); return -1; } setsid(); } #endif /* !defined(_WIN32) */ return 0; } #endif /* ADB_HOST */ // Try to handle a network forwarding request. // This returns 1 on success, 0 on failure, and -1 to indicate this is not // a forwarding-related request. int handle_forward_request(const char* service, transport_type ttype, char* serial, int reply_fd) { if (!strcmp(service, "list-forward")) { // Create the list of forward redirections. std::string listeners = format_listeners(); #if ADB_HOST SendOkay(reply_fd); #endif SendProtocolString(reply_fd, listeners); return 1; } if (!strcmp(service, "killforward-all")) { remove_all_listeners(); #if ADB_HOST /* On the host: 1st OKAY is connect, 2nd OKAY is status */ SendOkay(reply_fd); #endif SendOkay(reply_fd); return 1; } if (!strncmp(service, "forward:",8) || !strncmp(service, "killforward:",12)) { char *local, *remote; atransport *transport; int createForward = strncmp(service, "kill", 4); int no_rebind = 0; local = strchr(service, ':') + 1; // Handle forward:norebind:<local>... here if (createForward && !strncmp(local, "norebind:", 9)) { no_rebind = 1; local = strchr(local, ':') + 1; } remote = strchr(local,';'); if (createForward) { // Check forward: parameter format: '<local>;<remote>' if(remote == 0) { SendFail(reply_fd, "malformed forward spec"); return 1; } *remote++ = 0; if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')) { SendFail(reply_fd, "malformed forward spec"); return 1; } } else { // Check killforward: parameter format: '<local>' if (local[0] == 0) { SendFail(reply_fd, "malformed forward spec"); return 1; } } std::string error_msg; transport = acquire_one_transport(CS_ANY, ttype, serial, &error_msg); if (!transport) { SendFail(reply_fd, error_msg); return 1; } install_status_t r; if (createForward) { r = install_listener(local, remote, transport, no_rebind); } else { r = remove_listener(local, transport); } if (r == INSTALL_STATUS_OK) { #if ADB_HOST /* On the host: 1st OKAY is connect, 2nd OKAY is status */ SendOkay(reply_fd); #endif SendOkay(reply_fd); return 1; } std::string message; switch (r) { case INSTALL_STATUS_OK: message = " "; break; case INSTALL_STATUS_INTERNAL_ERROR: message = "internal error"; break; case INSTALL_STATUS_CANNOT_BIND: message = android::base::StringPrintf("cannot bind to socket: %s", strerror(errno)); break; case INSTALL_STATUS_CANNOT_REBIND: message = android::base::StringPrintf("cannot rebind existing socket: %s", strerror(errno)); break; case INSTALL_STATUS_LISTENER_NOT_FOUND: message = "listener not found"; break; } SendFail(reply_fd, message); return 1; } return 0; } int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s) { if(!strcmp(service, "kill")) { fprintf(stderr,"adb server killed by remote request\n"); fflush(stdout); SendOkay(reply_fd); usb_cleanup(); exit(0); } #if ADB_HOST atransport *transport = NULL; // "transport:" is used for switching transport with a specified serial number // "transport-usb:" is used for switching transport to the only USB transport // "transport-local:" is used for switching transport to the only local transport // "transport-any:" is used for switching transport to the only transport if (!strncmp(service, "transport", strlen("transport"))) { transport_type type = kTransportAny; if (!strncmp(service, "transport-usb", strlen("transport-usb"))) { type = kTransportUsb; } else if (!strncmp(service, "transport-local", strlen("transport-local"))) { type = kTransportLocal; } else if (!strncmp(service, "transport-any", strlen("transport-any"))) { type = kTransportAny; } else if (!strncmp(service, "transport:", strlen("transport:"))) { service += strlen("transport:"); serial = service; } std::string error_msg = "unknown failure"; transport = acquire_one_transport(CS_ANY, type, serial, &error_msg); if (transport) { s->transport = transport; SendOkay(reply_fd); } else { SendFail(reply_fd, error_msg); } return 1; } // return a list of all connected devices if (!strncmp(service, "devices", 7)) { bool long_listing = (strcmp(service+7, "-l") == 0); if (long_listing || service[7] == 0) { D("Getting device list...\n"); std::string device_list = list_transports(long_listing); D("Sending device list...\n"); SendOkay(reply_fd); SendProtocolString(reply_fd, device_list); return 0; } return 1; } // remove TCP transport if (!strncmp(service, "disconnect:", 11)) { char buffer[4096]; memset(buffer, 0, sizeof(buffer)); char* serial = service + 11; if (serial[0] == 0) { // disconnect from all TCP devices unregister_all_tcp_transports(); } else { char hostbuf[100]; // assume port 5555 if no port is specified if (!strchr(serial, ':')) { snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial); serial = hostbuf; } atransport *t = find_transport(serial); if (t) { unregister_transport(t); } else { snprintf(buffer, sizeof(buffer), "No such device %s", serial); } } SendOkay(reply_fd); SendProtocolString(reply_fd, buffer); return 0; } // returns our value for ADB_SERVER_VERSION if (!strcmp(service, "version")) { SendOkay(reply_fd); SendProtocolString(reply_fd, android::base::StringPrintf("%04x", ADB_SERVER_VERSION)); return 0; } if(!strncmp(service,"get-serialno",strlen("get-serialno"))) { const char *out = "unknown"; transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); if (transport && transport->serial) { out = transport->serial; } SendOkay(reply_fd); SendProtocolString(reply_fd, out); return 0; } if(!strncmp(service,"get-devpath",strlen("get-devpath"))) { const char *out = "unknown"; transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); if (transport && transport->devpath) { out = transport->devpath; } SendOkay(reply_fd); SendProtocolString(reply_fd, out); return 0; } // indicates a new emulator instance has started if (!strncmp(service,"emulator:",9)) { int port = atoi(service+9); local_connect(port); /* we don't even need to send a reply */ return 0; } if(!strncmp(service,"get-state",strlen("get-state"))) { transport = acquire_one_transport(CS_ANY, ttype, serial, NULL); SendOkay(reply_fd); SendProtocolString(reply_fd, transport->connection_state_name()); return 0; } #endif // ADB_HOST int ret = handle_forward_request(service, ttype, serial, reply_fd); if (ret >= 0) return ret - 1; return -1; }