| /* |
| * Copyright (C) 2015 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_client.h" |
| |
| #include <errno.h> |
| #include <limits.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <string> |
| #include <vector> |
| |
| #include <base/stringprintf.h> |
| |
| #include "adb_io.h" |
| |
| static transport_type __adb_transport = kTransportAny; |
| static const char* __adb_serial = NULL; |
| |
| static int __adb_server_port = DEFAULT_ADB_PORT; |
| static const char* __adb_server_name = NULL; |
| |
| void adb_set_transport(transport_type type, const char* serial) |
| { |
| __adb_transport = type; |
| __adb_serial = serial; |
| } |
| |
| void adb_set_tcp_specifics(int server_port) |
| { |
| __adb_server_port = server_port; |
| } |
| |
| void adb_set_tcp_name(const char* hostname) |
| { |
| __adb_server_name = hostname; |
| } |
| |
| int adb_get_emulator_console_port(void) |
| { |
| const char* serial = __adb_serial; |
| int port; |
| |
| if (serial == NULL) { |
| /* if no specific device was specified, we need to look at */ |
| /* the list of connected devices, and extract an emulator */ |
| /* name from it. two emulators is an error */ |
| std::string error; |
| char* tmp = adb_query("host:devices", &error); |
| char* p = tmp; |
| if (!tmp) { |
| printf("no emulator connected: %s\n", error.c_str()); |
| return -1; |
| } |
| while (*p) { |
| char* q = strchr(p, '\n'); |
| if (q != NULL) |
| *q++ = 0; |
| else |
| q = p + strlen(p); |
| |
| if (!memcmp(p, LOCAL_CLIENT_PREFIX, sizeof(LOCAL_CLIENT_PREFIX)-1)) { |
| if (serial != NULL) { /* more than one emulator listed */ |
| free(tmp); |
| return -2; |
| } |
| serial = p; |
| } |
| |
| p = q; |
| } |
| free(tmp); |
| |
| if (serial == NULL) |
| return -1; /* no emulator found */ |
| } |
| else { |
| if (memcmp(serial, LOCAL_CLIENT_PREFIX, sizeof(LOCAL_CLIENT_PREFIX)-1) != 0) |
| return -1; /* not an emulator */ |
| } |
| |
| serial += sizeof(LOCAL_CLIENT_PREFIX)-1; |
| port = strtol(serial, NULL, 10); |
| return port; |
| } |
| |
| std::string perror_str(const char* msg) { |
| return android::base::StringPrintf("%s: %s", msg, strerror(errno)); |
| } |
| |
| static int switch_socket_transport(int fd, std::string* error) { |
| std::string service; |
| if (__adb_serial) { |
| service += "host:transport:"; |
| service += __adb_serial; |
| } else { |
| const char* transport_type = "???"; |
| switch (__adb_transport) { |
| case kTransportUsb: |
| transport_type = "transport-usb"; |
| break; |
| case kTransportLocal: |
| transport_type = "transport-local"; |
| break; |
| case kTransportAny: |
| transport_type = "transport-any"; |
| break; |
| case kTransportHost: |
| // no switch necessary |
| return 0; |
| } |
| service += "host:"; |
| service += transport_type; |
| } |
| |
| char tmp[5]; |
| snprintf(tmp, sizeof(tmp), "%04zx", service.size()); |
| if (!WriteFdExactly(fd, tmp, 4) || !WriteFdExactly(fd, service.c_str(), service.size())) { |
| *error = perror_str("write failure during connection"); |
| adb_close(fd); |
| return -1; |
| } |
| D("Switch transport in progress\n"); |
| |
| if (!adb_status(fd, error)) { |
| adb_close(fd); |
| D("Switch transport failed: %s\n", error->c_str()); |
| return -1; |
| } |
| D("Switch transport success\n"); |
| return 0; |
| } |
| |
| bool adb_status(int fd, std::string* error) { |
| char buf[5]; |
| |
| if (!ReadFdExactly(fd, buf, 4)) { |
| *error = perror_str("protocol fault (couldn't read status)"); |
| return false; |
| } |
| |
| if (!memcmp(buf, "OKAY", 4)) { |
| return true; |
| } |
| |
| if (memcmp(buf, "FAIL", 4)) { |
| *error = android::base::StringPrintf("protocol fault (status %02x %02x %02x %02x?!)", |
| buf[0], buf[1], buf[2], buf[3]); |
| return false; |
| } |
| |
| if (!ReadFdExactly(fd, buf, 4)) { |
| *error = perror_str("protocol fault (couldn't read status length)"); |
| return false; |
| } |
| buf[4] = 0; |
| |
| unsigned long len = strtoul(buf, 0, 16); |
| error->resize(len + 1, '\0'); // Ensure NUL-termination. |
| if (!ReadFdExactly(fd, &(*error)[0], len)) { |
| *error = perror_str("protocol fault (couldn't read status message)"); |
| } |
| return false; |
| } |
| |
| int _adb_connect(const char *service, std::string* error) { |
| char tmp[5]; |
| int fd; |
| |
| D("_adb_connect: %s\n", service); |
| size_t len = strlen(service); |
| if ((len < 1) || (len > 1024)) { |
| *error = android::base::StringPrintf("service name too long (%d)", static_cast<int>(len)); |
| return -1; |
| } |
| snprintf(tmp, sizeof tmp, "%04zx", len); |
| |
| if (__adb_server_name) |
| fd = socket_network_client(__adb_server_name, __adb_server_port, SOCK_STREAM); |
| else |
| fd = socket_loopback_client(__adb_server_port, SOCK_STREAM); |
| |
| if(fd < 0) { |
| *error = perror_str("cannot connect to daemon"); |
| return -2; |
| } |
| |
| if (memcmp(service,"host",4) != 0 && switch_socket_transport(fd, error)) { |
| return -1; |
| } |
| |
| if(!WriteFdExactly(fd, tmp, 4) || !WriteFdExactly(fd, service, len)) { |
| *error = perror_str("write failure during connection"); |
| adb_close(fd); |
| return -1; |
| } |
| |
| if (!adb_status(fd, error)) { |
| adb_close(fd); |
| return -1; |
| } |
| |
| D("_adb_connect: return fd %d\n", fd); |
| return fd; |
| } |
| |
| int adb_connect(const char* service, std::string* error) { |
| // first query the adb server's version |
| int fd = _adb_connect("host:version", error); |
| |
| D("adb_connect: service %s\n", service); |
| if (fd == -2 && __adb_server_name) { |
| fprintf(stderr,"** Cannot start server on remote host\n"); |
| return fd; |
| } else if (fd == -2) { |
| fprintf(stdout,"* daemon not running. starting it now on port %d *\n", |
| __adb_server_port); |
| start_server: |
| if (launch_server(__adb_server_port)) { |
| fprintf(stderr,"* failed to start daemon *\n"); |
| return -1; |
| } else { |
| fprintf(stdout,"* daemon started successfully *\n"); |
| } |
| /* give the server some time to start properly and detect devices */ |
| adb_sleep_ms(3000); |
| // fall through to _adb_connect |
| } else { |
| // if server was running, check its version to make sure it is not out of date |
| char buf[100]; |
| size_t n; |
| int version = ADB_SERVER_VERSION - 1; |
| |
| // if we have a file descriptor, then parse version result |
| if (fd >= 0) { |
| if(!ReadFdExactly(fd, buf, 4)) goto error; |
| |
| buf[4] = 0; |
| n = strtoul(buf, 0, 16); |
| if(n > sizeof(buf)) goto error; |
| if(!ReadFdExactly(fd, buf, n)) goto error; |
| adb_close(fd); |
| |
| if (sscanf(buf, "%04x", &version) != 1) goto error; |
| } else { |
| // if fd is -1, then check for "unknown host service", |
| // which would indicate a version of adb that does not support the version command |
| if (*error == "unknown host service") { |
| return fd; |
| } |
| } |
| |
| if(version != ADB_SERVER_VERSION) { |
| printf("adb server is out of date. killing...\n"); |
| fd = _adb_connect("host:kill", error); |
| adb_close(fd); |
| |
| /* XXX can we better detect its death? */ |
| adb_sleep_ms(2000); |
| goto start_server; |
| } |
| } |
| |
| // if the command is start-server, we are done. |
| if (!strcmp(service, "host:start-server")) { |
| return 0; |
| } |
| |
| fd = _adb_connect(service, error); |
| if (fd == -1) { |
| D("_adb_connect error: %s", error->c_str()); |
| } else if(fd == -2) { |
| fprintf(stderr,"** daemon still not running\n"); |
| } |
| D("adb_connect: return fd %d\n", fd); |
| |
| return fd; |
| error: |
| adb_close(fd); |
| return -1; |
| } |
| |
| |
| int adb_command(const char* service, std::string* error) { |
| int fd = adb_connect(service, error); |
| if (fd < 0) { |
| fprintf(stderr, "error: %s\n", error->c_str()); |
| return -1; |
| } |
| |
| if (!adb_status(fd, error)) { |
| adb_close(fd); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| char* adb_query(const char* service, std::string* error) { |
| char buf[5]; |
| unsigned long n; |
| char* tmp; |
| |
| D("adb_query: %s\n", service); |
| int fd = adb_connect(service, error); |
| if (fd < 0) { |
| fprintf(stderr,"error: %s\n", error->c_str()); |
| return 0; |
| } |
| |
| if (!ReadFdExactly(fd, buf, 4)) goto oops; |
| |
| buf[4] = 0; |
| n = strtoul(buf, 0, 16); |
| // TODO: given that we just read a 4-byte hex length 0x????, why the test? |
| if (n >= 0xffff) { |
| *error = "reply is too long (>= 64KiB)"; |
| goto oops; |
| } |
| |
| tmp = reinterpret_cast<char*>(malloc(n + 1)); |
| if(tmp == 0) goto oops; |
| |
| if(!ReadFdExactly(fd, tmp, n) == 0) { |
| tmp[n] = 0; |
| adb_close(fd); |
| return tmp; |
| } |
| free(tmp); |
| |
| oops: |
| adb_close(fd); |
| return 0; |
| } |