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platform_system_core/adb/adb.cpp
Dan Albert 90d4b739ab Add adb features. 
Shows the features supported by the active adb server.

Change-Id: I4a58a2ca082823c43f7a49e2c62ff80df6426756
2015-08-14 08:25:23 -07:00

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/*
* 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 <vector>
#include <unordered_map>
#include <base/logging.h>
#include <base/macros.h>
#include <base/stringprintf.h>
#include <base/strings.h>
#include "adb_auth.h"
#include "adb_io.h"
#include "adb_listeners.h"
#include "adb_utils.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);
#if !ADB_HOST
const char* adb_device_banner = "device";
static android::base::LogdLogger gLogdLogger;
#else
const char* adb_device_banner = "host";
#endif
void AdbLogger(android::base::LogId id, android::base::LogSeverity severity,
const char* tag, const char* file, unsigned int line,
const char* message) {
android::base::StderrLogger(id, severity, tag, file, line, message);
#if !ADB_HOST
gLogdLogger(id, severity, tag, file, line, message);
#endif
}
std::string adb_version() {
// Don't change the format of this --- it's parsed by ddmlib.
return android::base::StringPrintf("Android Debug Bridge version %d.%d.%d\n"
"Revision %s\n",
ADB_VERSION_MAJOR, ADB_VERSION_MINOR, ADB_SERVER_VERSION,
ADB_REVISION);
}
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
static std::string get_log_file_name() {
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);
return android::base::StringPrintf("/data/adb/adb-%s-%d", timestamp,
getpid());
}
void start_device_log(void) {
int fd = unix_open(get_log_file_name().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());
unix_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 space 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.
static void setup_trace_mask() {
const std::string trace_setting = get_trace_setting();
std::unordered_map<std::string, int> trace_flags = {
{"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}};
std::vector<std::string> elements = android::base::Split(trace_setting, " ");
for (const auto& elem : elements) {
const auto& flag = trace_flags.find(elem);
if (flag == trace_flags.end()) {
D("Unknown trace flag: %s\n", flag->first.c_str());
continue;
}
if (flag->second == 0) {
// 0 is used for the special values "1" and "all" that enable all
// tracing.
adb_trace_mask = ~0;
return;
} else {
adb_trace_mask |= 1 << flag->second;
}
}
}
void adb_trace_init(char** argv) {
#if !ADB_HOST
// Don't open log file if no tracing, since this will block
// the crypto unmount of /data
if (!get_trace_setting().empty()) {
if (isatty(STDOUT_FILENO) == 0) {
start_device_log();
}
}
#endif
setup_trace_mask();
android::base::InitLogging(argv, AdbLogger);
D("%s", adb_version().c_str());
}
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);
}
std::string get_connection_string() {
std::vector<std::string> connection_properties;
#if !ADB_HOST
static const char* cnxn_props[] = {
"ro.product.name",
"ro.product.model",
"ro.product.device",
};
for (const auto& prop_name : cnxn_props) {
char value[PROPERTY_VALUE_MAX];
property_get(prop_name, value, "");
connection_properties.push_back(
android::base::StringPrintf("%s=%s", prop_name, value));
}
#endif
connection_properties.push_back(android::base::StringPrintf(
"features=%s", android::base::Join(supported_features(), ',').c_str()));
return android::base::StringPrintf(
"%s::%s", adb_device_banner,
android::base::Join(connection_properties, ';').c_str());
}
void send_connect(atransport* t) {
D("Calling send_connect \n");
apacket* cp = get_apacket();
cp->msg.command = A_CNXN;
cp->msg.arg0 = t->get_protocol_version();
cp->msg.arg1 = t->get_max_payload();
std::string connection_str = get_connection_string();
// Connect and auth packets are limited to MAX_PAYLOAD_V1 because we don't
// yet know how much data the other size is willing to accept.
if (connection_str.length() > MAX_PAYLOAD_V1) {
LOG(FATAL) << "Connection banner is too long (length = "
<< connection_str.length() << ")";
}
memcpy(cp->data, connection_str.c_str(), connection_str.length());
cp->msg.data_length = connection_str.length();
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 std::string& banner, atransport* t) {
D("parse_banner: %s\n", banner.c_str());
// 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);
} else if (key == "features") {
for (const auto& feature : android::base::Split(value, ",")) {
t->add_feature(feature);
}
}
}
}
const std::string& type = pieces[0];
if (type == "bootloader") {
D("setting connection_state to kCsBootloader\n");
t->connection_state = kCsBootloader;
update_transports();
} else if (type == "device") {
D("setting connection_state to kCsDevice\n");
t->connection_state = kCsDevice;
update_transports();
} else if (type == "recovery") {
D("setting connection_state to kCsRecovery\n");
t->connection_state = kCsRecovery;
update_transports();
} else if (type == "sideload") {
D("setting connection_state to kCsSideload\n");
t->connection_state = kCsSideload;
update_transports();
} else {
D("setting connection_state to kCsHost\n");
t->connection_state = kCsHost;
}
}
static void handle_new_connection(atransport* t, apacket* p) {
if (t->connection_state != kCsOffline) {
t->connection_state = kCsOffline;
handle_offline(t);
}
t->update_version(p->msg.arg0, p->msg.arg1);
std::string banner(reinterpret_cast<const char*>(p->data),
p->msg.data_length);
parse_banner(banner, t);
#if ADB_HOST
handle_online(t);
#else
if (!auth_required) {
handle_online(t);
send_connect(t);
} else {
send_auth_request(t);
}
#endif
}
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 ADB_HOST
send_connect(t);
#endif
} else {
t->connection_state = kCsOffline;
handle_offline(t);
send_packet(p, t);
}
return;
case A_CNXN: // CONNECT(version, maxdata, "system-id-string")
handle_new_connection(t, p);
break;
case A_AUTH:
if (p->msg.arg0 == ADB_AUTH_TOKEN) {
t->connection_state = kCsUnauthorized;
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 nul_read, nul_write;
HANDLE pipe_read, pipe_write;
HANDLE stdout_handle, stderr_handle;
SECURITY_ATTRIBUTES sa;
STARTUPINFOW startup;
PROCESS_INFORMATION pinfo;
WCHAR program_path[ MAX_PATH ];
int ret;
sa.nLength = sizeof(sa);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
/* Redirect stdin and stderr to Windows /dev/null. If we instead pass our
* stdin/stderr handles and they are console handles, when the adb server
* starts up, the C Runtime will see console handles for a process that
* isn't connected to a console and it will configure stderr to be closed.
* At that point, freopen() could be used to reopen stderr, but it would
* take more massaging to fixup the file descriptor number that freopen()
* uses. It's simplest to avoid all of this complexity by just redirecting
* stdin/stderr to `nul' and then the C Runtime acts as expected.
*/
nul_read = CreateFileW(L"nul", GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE, &sa,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (nul_read == INVALID_HANDLE_VALUE) {
fprintf(stderr, "CreateFileW(nul, GENERIC_READ) failed: %s\n",
SystemErrorCodeToString(GetLastError()).c_str());
return -1;
}
nul_write = CreateFileW(L"nul", GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, &sa,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (nul_write == INVALID_HANDLE_VALUE) {
fprintf(stderr, "CreateFileW(nul, GENERIC_WRITE) failed: %s\n",
SystemErrorCodeToString(GetLastError()).c_str());
CloseHandle(nul_read);
return -1;
}
/* create pipe, and ensure its read handle isn't inheritable */
ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 );
if (!ret) {
fprintf(stderr, "CreatePipe() failed: %s\n",
SystemErrorCodeToString(GetLastError()).c_str());
CloseHandle(nul_read);
CloseHandle(nul_write);
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 = nul_read;
startup.hStdOutput = nul_write;
startup.hStdError = nul_write;
startup.dwFlags = STARTF_USESTDHANDLES;
ZeroMemory( &pinfo, sizeof(pinfo) );
/* get path of current program */
DWORD module_result = GetModuleFileNameW(NULL, program_path,
arraysize(program_path));
if ((module_result == arraysize(program_path)) || (module_result == 0)) {
// String truncation or some other error.
fprintf(stderr, "GetModuleFileNameW() failed: %s\n",
SystemErrorCodeToString(GetLastError()).c_str());
return -1;
}
// Verify that the pipe_write handle value can be passed on the command line
// as %d and that the rest of adb code can pass it around in an int.
const int pipe_write_as_int = cast_handle_to_int(pipe_write);
if (cast_int_to_handle(pipe_write_as_int) != pipe_write) {
// If this fires, either handle values are larger than 32-bits or else
// there is a bug in our casting.
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa384203%28v=vs.85%29.aspx
fprintf(stderr, "CreatePipe handle value too large: 0x%p\n",
pipe_write);
return -1;
}
WCHAR args[64];
snwprintf(args, arraysize(args),
L"adb -P %d fork-server server --reply-fd %d", server_port,
pipe_write_as_int);
ret = CreateProcessW(
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( nul_read );
CloseHandle( nul_write );
CloseHandle( pipe_write );
if (!ret) {
fprintf(stderr, "CreateProcess failed: %s\n",
SystemErrorCodeToString(GetLastError()).c_str());
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: %s\n",
SystemErrorCodeToString(GetLastError()).c_str());
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 the child will write on fd[1]
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
adb_close(fd[0]);
char str_port[30];
snprintf(str_port, sizeof(str_port), "%d", server_port);
char reply_fd[30];
snprintf(reply_fd, sizeof(reply_fd), "%d", fd[1]);
// child process
int result = execl(path, "adb", "-P", str_port, "fork-server", "server", "--reply-fd", reply_fd, 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, TransportType type, const 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)) {
// killforward:local
// forward:(norebind:)?local;remote
bool kill_forward = false;
bool no_rebind = false;
if (android::base::StartsWith(service, "killforward:")) {
kill_forward = true;
service += 12;
} else {
service += 8; // skip past "forward:"
if (android::base::StartsWith(service, "norebind:")) {
no_rebind = true;
service += 9;
}
}
std::vector<std::string> pieces = android::base::Split(service, ";");
if (kill_forward) {
// Check killforward: parameter format: '<local>'
if (pieces.size() != 1 || pieces[0].empty()) {
SendFail(reply_fd, android::base::StringPrintf("bad killforward: %s", service));
return 1;
}
} else {
// Check forward: parameter format: '<local>;<remote>'
if (pieces.size() != 2 || pieces[0].empty() || pieces[1].empty() || pieces[1][0] == '*') {
SendFail(reply_fd, android::base::StringPrintf("bad forward: %s", service));
return 1;
}
}
std::string error_msg;
atransport* transport = acquire_one_transport(kCsAny, type, serial, &error_msg);
if (!transport) {
SendFail(reply_fd, error_msg);
return 1;
}
std::string error;
InstallStatus r;
if (kill_forward) {
r = remove_listener(pieces[0].c_str(), transport);
} else {
r = install_listener(pieces[0], pieces[1].c_str(), transport,
no_rebind, &error);
}
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 = "success (!)"; break;
case INSTALL_STATUS_INTERNAL_ERROR: message = "internal error"; break;
case INSTALL_STATUS_CANNOT_BIND:
message = android::base::StringPrintf("cannot bind listener: %s",
error.c_str());
break;
case INSTALL_STATUS_CANNOT_REBIND:
message = android::base::StringPrintf("cannot rebind existing socket");
break;
case INSTALL_STATUS_LISTENER_NOT_FOUND:
message = android::base::StringPrintf("listener '%s' not found", service);
break;
}
SendFail(reply_fd, message);
return 1;
}
return 0;
}
#if ADB_HOST
static int SendOkay(int fd, const std::string& s) {
SendOkay(fd);
SendProtocolString(fd, s);
return 0;
}
#endif
int handle_host_request(const char* service, TransportType type,
const char* serial, int reply_fd, asocket* s) {
if (strcmp(service, "kill") == 0) {
fprintf(stderr, "adb server killed by remote request\n");
fflush(stdout);
SendOkay(reply_fd);
// At least on Windows, if we exit() without shutdown(SD_SEND) or
// closesocket(), the client's next recv() will error-out with
// WSAECONNRESET and they'll never read the OKAY.
adb_shutdown(reply_fd);
exit(0);
}
#if ADB_HOST
// "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"))) {
TransportType 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;
atransport* t = acquire_one_transport(kCsAny, type, serial, &error_msg);
if (t != nullptr) {
s->transport = t;
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");
return SendOkay(reply_fd, device_list);
}
return 1;
}
if (!strcmp(service, "features")) {
SendOkay(reply_fd);
SendProtocolString(
reply_fd, android::base::Join(supported_features(), '\n'));
return 0;
}
// remove TCP transport
if (!strncmp(service, "disconnect:", 11)) {
const std::string address(service + 11);
if (address.empty()) {
// disconnect from all TCP devices
unregister_all_tcp_transports();
return SendOkay(reply_fd, "disconnected everything");
}
std::string serial;
std::string host;
int port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT;
std::string error;
if (!parse_host_and_port(address, &serial, &host, &port, &error)) {
return SendFail(reply_fd, android::base::StringPrintf("couldn't parse '%s': %s",
address.c_str(), error.c_str()));
}
atransport* t = find_transport(serial.c_str());
if (t == nullptr) {
return SendFail(reply_fd, android::base::StringPrintf("no such device '%s'",
serial.c_str()));
}
unregister_transport(t);
return SendOkay(reply_fd, android::base::StringPrintf("disconnected %s", address.c_str()));
}
// returns our value for ADB_SERVER_VERSION
if (!strcmp(service, "version")) {
return SendOkay(reply_fd, android::base::StringPrintf("%04x", ADB_SERVER_VERSION));
}
// These always report "unknown" rather than the actual error, for scripts.
if (!strcmp(service, "get-serialno")) {
std::string ignored;
atransport* t = acquire_one_transport(kCsAny, type, serial, &ignored);
return SendOkay(reply_fd, (t && t->serial) ? t->serial : "unknown");
}
if (!strcmp(service, "get-devpath")) {
std::string ignored;
atransport* t = acquire_one_transport(kCsAny, type, serial, &ignored);
return SendOkay(reply_fd, (t && t->devpath) ? t->devpath : "unknown");
}
if (!strcmp(service, "get-state")) {
std::string ignored;
atransport* t = acquire_one_transport(kCsAny, type, serial, &ignored);
return SendOkay(reply_fd, t ? t->connection_state_name() : "unknown");
}
// 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;
}
#endif // ADB_HOST
int ret = handle_forward_request(service, type, serial, reply_fd);
if (ret >= 0)
return ret - 1;
return -1;
}
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