1160 lines
42 KiB
C++
1160 lines
42 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define TRACE_TAG ADB
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#include "sysdeps.h"
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#include "adb.h"
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#include <ctype.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <time.h>
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#include <string>
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#include <vector>
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#include <android-base/errors.h>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/macros.h>
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#include <android-base/parsenetaddress.h>
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#include <android-base/stringprintf.h>
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#include <android-base/strings.h>
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#include "adb_auth.h"
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#include "adb_io.h"
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#include "adb_listeners.h"
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#include "adb_utils.h"
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#include "transport.h"
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#if !ADB_HOST
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#include <cutils/properties.h>
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#include <sys/capability.h>
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#include <sys/mount.h>
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#endif
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std::string adb_version() {
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// Don't change the format of this --- it's parsed by ddmlib.
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return android::base::StringPrintf("Android Debug Bridge version %d.%d.%d\n"
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"Revision %s\n",
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ADB_VERSION_MAJOR, ADB_VERSION_MINOR, ADB_SERVER_VERSION,
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ADB_REVISION);
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}
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void fatal(const char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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char buf[1024];
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vsnprintf(buf, sizeof(buf), fmt, ap);
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#if ADB_HOST
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fprintf(stderr, "error: %s\n", buf);
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#else
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LOG(ERROR) << "error: " << buf;
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#endif
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va_end(ap);
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abort();
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}
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void fatal_errno(const char* fmt, ...) {
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int err = errno;
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va_list ap;
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va_start(ap, fmt);
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char buf[1024];
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vsnprintf(buf, sizeof(buf), fmt, ap);
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#if ADB_HOST
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fprintf(stderr, "error: %s: %s\n", buf, strerror(err));
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#else
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LOG(ERROR) << "error: " << buf << ": " << strerror(err);
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#endif
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va_end(ap);
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abort();
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}
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apacket* get_apacket(void)
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{
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apacket* p = reinterpret_cast<apacket*>(malloc(sizeof(apacket)));
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if (p == nullptr) {
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fatal("failed to allocate an apacket");
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}
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memset(p, 0, sizeof(apacket) - MAX_PAYLOAD);
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return p;
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}
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void put_apacket(apacket *p)
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{
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free(p);
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}
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void handle_online(atransport *t)
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{
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D("adb: online");
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t->online = 1;
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}
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void handle_offline(atransport *t)
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{
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D("adb: offline");
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//Close the associated usb
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t->online = 0;
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// This is necessary to avoid a race condition that occurred when a transport closes
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// while a client socket is still active.
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close_all_sockets(t);
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t->RunDisconnects();
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}
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#if DEBUG_PACKETS
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#define DUMPMAX 32
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void print_packet(const char *label, apacket *p)
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{
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char *tag;
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char *x;
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unsigned count;
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switch(p->msg.command){
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case A_SYNC: tag = "SYNC"; break;
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case A_CNXN: tag = "CNXN" ; break;
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case A_OPEN: tag = "OPEN"; break;
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case A_OKAY: tag = "OKAY"; break;
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case A_CLSE: tag = "CLSE"; break;
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case A_WRTE: tag = "WRTE"; break;
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case A_AUTH: tag = "AUTH"; break;
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default: tag = "????"; break;
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}
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fprintf(stderr, "%s: %s %08x %08x %04x \"",
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label, tag, p->msg.arg0, p->msg.arg1, p->msg.data_length);
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count = p->msg.data_length;
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x = (char*) p->data;
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if(count > DUMPMAX) {
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count = DUMPMAX;
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tag = "\n";
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} else {
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tag = "\"\n";
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}
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while(count-- > 0){
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if((*x >= ' ') && (*x < 127)) {
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fputc(*x, stderr);
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} else {
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fputc('.', stderr);
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}
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x++;
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}
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fputs(tag, stderr);
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}
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#endif
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static void send_ready(unsigned local, unsigned remote, atransport *t)
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{
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D("Calling send_ready");
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apacket *p = get_apacket();
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p->msg.command = A_OKAY;
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p->msg.arg0 = local;
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p->msg.arg1 = remote;
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send_packet(p, t);
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}
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static void send_close(unsigned local, unsigned remote, atransport *t)
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{
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D("Calling send_close");
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apacket *p = get_apacket();
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p->msg.command = A_CLSE;
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p->msg.arg0 = local;
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p->msg.arg1 = remote;
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send_packet(p, t);
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}
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std::string get_connection_string() {
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std::vector<std::string> connection_properties;
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#if !ADB_HOST
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static const char* cnxn_props[] = {
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"ro.product.name",
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"ro.product.model",
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"ro.product.device",
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};
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for (const auto& prop_name : cnxn_props) {
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char value[PROPERTY_VALUE_MAX];
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property_get(prop_name, value, "");
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connection_properties.push_back(
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android::base::StringPrintf("%s=%s", prop_name, value));
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}
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#endif
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connection_properties.push_back(android::base::StringPrintf(
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"features=%s", FeatureSetToString(supported_features()).c_str()));
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return android::base::StringPrintf(
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"%s::%s", adb_device_banner,
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android::base::Join(connection_properties, ';').c_str());
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}
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void send_connect(atransport* t) {
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D("Calling send_connect");
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apacket* cp = get_apacket();
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cp->msg.command = A_CNXN;
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cp->msg.arg0 = t->get_protocol_version();
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cp->msg.arg1 = t->get_max_payload();
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std::string connection_str = get_connection_string();
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// Connect and auth packets are limited to MAX_PAYLOAD_V1 because we don't
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// yet know how much data the other size is willing to accept.
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if (connection_str.length() > MAX_PAYLOAD_V1) {
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LOG(FATAL) << "Connection banner is too long (length = "
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<< connection_str.length() << ")";
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}
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memcpy(cp->data, connection_str.c_str(), connection_str.length());
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cp->msg.data_length = connection_str.length();
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send_packet(cp, t);
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}
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// qual_overwrite is used to overwrite a qualifier string. dst is a
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// pointer to a char pointer. It is assumed that if *dst is non-NULL, it
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// was malloc'ed and needs to freed. *dst will be set to a dup of src.
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// TODO: switch to std::string for these atransport fields instead.
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static void qual_overwrite(char** dst, const std::string& src) {
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free(*dst);
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*dst = strdup(src.c_str());
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}
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void parse_banner(const std::string& banner, atransport* t) {
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D("parse_banner: %s", banner.c_str());
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// The format is something like:
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// "device::ro.product.name=x;ro.product.model=y;ro.product.device=z;".
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std::vector<std::string> pieces = android::base::Split(banner, ":");
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// Reset the features list or else if the server sends no features we may
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// keep the existing feature set (http://b/24405971).
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t->SetFeatures("");
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if (pieces.size() > 2) {
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const std::string& props = pieces[2];
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for (const auto& prop : android::base::Split(props, ";")) {
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// The list of properties was traditionally ;-terminated rather than ;-separated.
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if (prop.empty()) continue;
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std::vector<std::string> key_value = android::base::Split(prop, "=");
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if (key_value.size() != 2) continue;
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const std::string& key = key_value[0];
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const std::string& value = key_value[1];
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if (key == "ro.product.name") {
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qual_overwrite(&t->product, value);
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} else if (key == "ro.product.model") {
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qual_overwrite(&t->model, value);
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} else if (key == "ro.product.device") {
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qual_overwrite(&t->device, value);
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} else if (key == "features") {
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t->SetFeatures(value);
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}
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}
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}
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const std::string& type = pieces[0];
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if (type == "bootloader") {
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D("setting connection_state to kCsBootloader");
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t->connection_state = kCsBootloader;
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update_transports();
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} else if (type == "device") {
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D("setting connection_state to kCsDevice");
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t->connection_state = kCsDevice;
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update_transports();
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} else if (type == "recovery") {
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D("setting connection_state to kCsRecovery");
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t->connection_state = kCsRecovery;
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update_transports();
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} else if (type == "sideload") {
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D("setting connection_state to kCsSideload");
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t->connection_state = kCsSideload;
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update_transports();
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} else {
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D("setting connection_state to kCsHost");
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t->connection_state = kCsHost;
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}
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}
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static void handle_new_connection(atransport* t, apacket* p) {
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if (t->connection_state != kCsOffline) {
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t->connection_state = kCsOffline;
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handle_offline(t);
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}
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t->update_version(p->msg.arg0, p->msg.arg1);
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std::string banner(reinterpret_cast<const char*>(p->data),
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p->msg.data_length);
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parse_banner(banner, t);
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#if ADB_HOST
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handle_online(t);
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#else
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if (!auth_required) {
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handle_online(t);
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send_connect(t);
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} else {
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send_auth_request(t);
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}
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#endif
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}
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void handle_packet(apacket *p, atransport *t)
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{
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D("handle_packet() %c%c%c%c", ((char*) (&(p->msg.command)))[0],
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((char*) (&(p->msg.command)))[1],
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((char*) (&(p->msg.command)))[2],
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((char*) (&(p->msg.command)))[3]);
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print_packet("recv", p);
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switch(p->msg.command){
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case A_SYNC:
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if (p->msg.arg0){
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send_packet(p, t);
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#if ADB_HOST
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send_connect(t);
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#endif
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} else {
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t->connection_state = kCsOffline;
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handle_offline(t);
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send_packet(p, t);
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}
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return;
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case A_CNXN: // CONNECT(version, maxdata, "system-id-string")
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handle_new_connection(t, p);
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break;
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case A_AUTH:
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if (p->msg.arg0 == ADB_AUTH_TOKEN) {
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t->connection_state = kCsUnauthorized;
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send_auth_response(p->data, p->msg.data_length, t);
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} else if (p->msg.arg0 == ADB_AUTH_SIGNATURE) {
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if (adb_auth_verify(t->token, sizeof(t->token), p->data, p->msg.data_length)) {
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adb_auth_verified(t);
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t->failed_auth_attempts = 0;
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} else {
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if (t->failed_auth_attempts++ > 256) adb_sleep_ms(1000);
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send_auth_request(t);
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}
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} else if (p->msg.arg0 == ADB_AUTH_RSAPUBLICKEY) {
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adb_auth_confirm_key(p->data, p->msg.data_length, t);
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}
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break;
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case A_OPEN: /* OPEN(local-id, 0, "destination") */
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if (t->online && p->msg.arg0 != 0 && p->msg.arg1 == 0) {
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char *name = (char*) p->data;
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name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0;
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asocket* s = create_local_service_socket(name, t);
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if (s == nullptr) {
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send_close(0, p->msg.arg0, t);
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} else {
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s->peer = create_remote_socket(p->msg.arg0, t);
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s->peer->peer = s;
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send_ready(s->id, s->peer->id, t);
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s->ready(s);
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}
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}
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break;
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case A_OKAY: /* READY(local-id, remote-id, "") */
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if (t->online && p->msg.arg0 != 0 && p->msg.arg1 != 0) {
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asocket* s = find_local_socket(p->msg.arg1, 0);
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if (s) {
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if(s->peer == 0) {
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/* On first READY message, create the connection. */
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s->peer = create_remote_socket(p->msg.arg0, t);
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s->peer->peer = s;
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s->ready(s);
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} else if (s->peer->id == p->msg.arg0) {
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/* Other READY messages must use the same local-id */
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s->ready(s);
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} else {
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D("Invalid A_OKAY(%d,%d), expected A_OKAY(%d,%d) on transport %s",
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p->msg.arg0, p->msg.arg1, s->peer->id, p->msg.arg1, t->serial);
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}
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} else {
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// When receiving A_OKAY from device for A_OPEN request, the host server may
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// have closed the local socket because of client disconnection. Then we need
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// to send A_CLSE back to device to close the service on device.
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send_close(p->msg.arg1, p->msg.arg0, t);
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}
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}
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break;
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case A_CLSE: /* CLOSE(local-id, remote-id, "") or CLOSE(0, remote-id, "") */
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if (t->online && p->msg.arg1 != 0) {
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asocket* s = find_local_socket(p->msg.arg1, p->msg.arg0);
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if (s) {
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/* According to protocol.txt, p->msg.arg0 might be 0 to indicate
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* a failed OPEN only. However, due to a bug in previous ADB
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* versions, CLOSE(0, remote-id, "") was also used for normal
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* CLOSE() operations.
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*
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* This is bad because it means a compromised adbd could
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* send packets to close connections between the host and
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* other devices. To avoid this, only allow this if the local
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* socket has a peer on the same transport.
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*/
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if (p->msg.arg0 == 0 && s->peer && s->peer->transport != t) {
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D("Invalid A_CLSE(0, %u) from transport %s, expected transport %s",
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p->msg.arg1, t->serial, s->peer->transport->serial);
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} else {
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s->close(s);
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}
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}
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}
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break;
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case A_WRTE: /* WRITE(local-id, remote-id, <data>) */
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if (t->online && p->msg.arg0 != 0 && p->msg.arg1 != 0) {
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asocket* s = find_local_socket(p->msg.arg1, p->msg.arg0);
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if (s) {
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unsigned rid = p->msg.arg0;
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p->len = p->msg.data_length;
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if (s->enqueue(s, p) == 0) {
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D("Enqueue the socket");
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send_ready(s->id, rid, t);
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}
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return;
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}
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}
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break;
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default:
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printf("handle_packet: what is %08x?!\n", p->msg.command);
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}
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put_apacket(p);
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}
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#if ADB_HOST
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#ifdef _WIN32
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// Try to make a handle non-inheritable and if there is an error, don't output
|
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// any error info, but leave GetLastError() for the caller to read. This is
|
|
// convenient if the caller is expecting that this may fail and they'd like to
|
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// ignore such a failure.
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static bool _try_make_handle_noninheritable(HANDLE h) {
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if (h != INVALID_HANDLE_VALUE && h != NULL) {
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return SetHandleInformation(h, HANDLE_FLAG_INHERIT, 0) ? true : false;
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}
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return true;
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}
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// Try to make a handle non-inheritable with the expectation that this should
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// succeed, so if this fails, output error info.
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static bool _make_handle_noninheritable(HANDLE h) {
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if (!_try_make_handle_noninheritable(h)) {
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// Show the handle value to give us a clue in case we have problems
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// with pseudo-handle values.
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fprintf(stderr, "Cannot make handle 0x%p non-inheritable: %s\n",
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h, android::base::SystemErrorCodeToString(GetLastError()).c_str());
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return false;
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}
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return true;
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}
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|
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// Create anonymous pipe, preventing inheritance of the read pipe and setting
|
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// security of the write pipe to sa.
|
|
static bool _create_anonymous_pipe(unique_handle* pipe_read_out,
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unique_handle* pipe_write_out,
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SECURITY_ATTRIBUTES* sa) {
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HANDLE pipe_read_raw = NULL;
|
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HANDLE pipe_write_raw = NULL;
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if (!CreatePipe(&pipe_read_raw, &pipe_write_raw, sa, 0)) {
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fprintf(stderr, "Cannot create pipe: %s\n",
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|
android::base::SystemErrorCodeToString(GetLastError()).c_str());
|
|
return false;
|
|
}
|
|
|
|
unique_handle pipe_read(pipe_read_raw);
|
|
pipe_read_raw = NULL;
|
|
unique_handle pipe_write(pipe_write_raw);
|
|
pipe_write_raw = NULL;
|
|
|
|
if (!_make_handle_noninheritable(pipe_read.get())) {
|
|
return false;
|
|
}
|
|
|
|
*pipe_read_out = std::move(pipe_read);
|
|
*pipe_write_out = std::move(pipe_write);
|
|
|
|
return true;
|
|
}
|
|
|
|
// Read from a pipe (that we take ownership of) and write the result to stdout/stderr. Return on
|
|
// error or when the pipe is closed. Internally makes inheritable handles, so this should not be
|
|
// called if subprocesses may be started concurrently.
|
|
static unsigned _redirect_pipe_thread(HANDLE h, DWORD nStdHandle) {
|
|
// Take ownership of the HANDLE and close when we're done.
|
|
unique_handle read_pipe(h);
|
|
const char* output_name = nStdHandle == STD_OUTPUT_HANDLE ? "stdout" : "stderr";
|
|
const int original_fd = fileno(nStdHandle == STD_OUTPUT_HANDLE ? stdout : stderr);
|
|
std::unique_ptr<FILE, decltype(&fclose)> stream(nullptr, fclose);
|
|
|
|
if (original_fd == -1) {
|
|
fprintf(stderr, "Failed to get file descriptor for %s: %s\n", output_name, strerror(errno));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// If fileno() is -2, stdout/stderr is not associated with an output stream, so we should read,
|
|
// but don't write. Otherwise, make a FILE* identical to stdout/stderr except that it is in
|
|
// binary mode with no CR/LR translation since we're reading raw.
|
|
if (original_fd >= 0) {
|
|
// This internally makes a duplicate file handle that is inheritable, so callers should not
|
|
// call this function if subprocesses may be started concurrently.
|
|
const int fd = dup(original_fd);
|
|
if (fd == -1) {
|
|
fprintf(stderr, "Failed to duplicate file descriptor for %s: %s\n", output_name,
|
|
strerror(errno));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// Note that although we call fdopen() below with a binary flag, it may not adhere to that
|
|
// flag, so we have to set the mode manually.
|
|
if (_setmode(fd, _O_BINARY) == -1) {
|
|
fprintf(stderr, "Failed to set binary mode for duplicate of %s: %s\n", output_name,
|
|
strerror(errno));
|
|
unix_close(fd);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
stream.reset(fdopen(fd, "wb"));
|
|
if (stream.get() == nullptr) {
|
|
fprintf(stderr, "Failed to open duplicate stream for %s: %s\n", output_name,
|
|
strerror(errno));
|
|
unix_close(fd);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// Unbuffer the stream because it will be buffered by default and we want subprocess output
|
|
// to be shown immediately.
|
|
if (setvbuf(stream.get(), NULL, _IONBF, 0) == -1) {
|
|
fprintf(stderr, "Failed to unbuffer %s: %s\n", output_name, strerror(errno));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// fd will be closed when stream is closed.
|
|
}
|
|
|
|
while (true) {
|
|
char buf[64 * 1024];
|
|
DWORD bytes_read = 0;
|
|
if (!ReadFile(read_pipe.get(), buf, sizeof(buf), &bytes_read, NULL)) {
|
|
const DWORD err = GetLastError();
|
|
// ERROR_BROKEN_PIPE is expected when the subprocess closes
|
|
// the other end of the pipe.
|
|
if (err == ERROR_BROKEN_PIPE) {
|
|
return EXIT_SUCCESS;
|
|
} else {
|
|
fprintf(stderr, "Failed to read from %s: %s\n", output_name,
|
|
android::base::SystemErrorCodeToString(err).c_str());
|
|
return EXIT_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Don't try to write if our stdout/stderr was not setup by the parent process.
|
|
if (stream) {
|
|
// fwrite() actually calls adb_fwrite() which can write UTF-8 to the console.
|
|
const size_t bytes_written = fwrite(buf, 1, bytes_read, stream.get());
|
|
if (bytes_written != bytes_read) {
|
|
fprintf(stderr, "Only wrote %zu of %lu bytes to %s\n", bytes_written, bytes_read,
|
|
output_name);
|
|
return EXIT_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static unsigned __stdcall _redirect_stdout_thread(HANDLE h) {
|
|
adb_thread_setname("stdout redirect");
|
|
return _redirect_pipe_thread(h, STD_OUTPUT_HANDLE);
|
|
}
|
|
|
|
static unsigned __stdcall _redirect_stderr_thread(HANDLE h) {
|
|
adb_thread_setname("stderr redirect");
|
|
return _redirect_pipe_thread(h, STD_ERROR_HANDLE);
|
|
}
|
|
|
|
#endif
|
|
|
|
int launch_server(const std::string& socket_spec) {
|
|
#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 */
|
|
SECURITY_ATTRIBUTES sa;
|
|
sa.nLength = sizeof(sa);
|
|
sa.lpSecurityDescriptor = NULL;
|
|
sa.bInheritHandle = TRUE;
|
|
|
|
// Redirect stdin to Windows /dev/null. If we instead pass an original
|
|
// stdin/stdout/stderr handle and it is a console handle, when the adb
|
|
// server starts up, the C Runtime will see a console handle for a process
|
|
// that isn't connected to a console and it will configure
|
|
// stdin/stdout/stderr to be closed. At that point, freopen() could be used
|
|
// to reopen stderr/out, 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 to `nul' and then the C Runtime acts
|
|
// as expected.
|
|
unique_handle nul_read(CreateFileW(L"nul", GENERIC_READ,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE, &sa, OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL, NULL));
|
|
if (nul_read.get() == INVALID_HANDLE_VALUE) {
|
|
fprintf(stderr, "Cannot open 'nul': %s\n",
|
|
android::base::SystemErrorCodeToString(GetLastError()).c_str());
|
|
return -1;
|
|
}
|
|
|
|
// Create pipes with non-inheritable read handle, inheritable write handle. We need to connect
|
|
// the subprocess to pipes instead of just letting the subprocess inherit our existing
|
|
// stdout/stderr handles because a DETACHED_PROCESS cannot write to a console that it is not
|
|
// attached to.
|
|
unique_handle ack_read, ack_write;
|
|
if (!_create_anonymous_pipe(&ack_read, &ack_write, &sa)) {
|
|
return -1;
|
|
}
|
|
unique_handle stdout_read, stdout_write;
|
|
if (!_create_anonymous_pipe(&stdout_read, &stdout_write, &sa)) {
|
|
return -1;
|
|
}
|
|
unique_handle stderr_read, stderr_write;
|
|
if (!_create_anonymous_pipe(&stderr_read, &stderr_write, &sa)) {
|
|
return -1;
|
|
}
|
|
|
|
/* 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).
|
|
* Note that even if we don't pass these handles in the STARTUPINFO struct,
|
|
* if they're marked inheritable, they're still inherited, requiring us to
|
|
* deal with this.
|
|
*
|
|
* If we're still having problems with inheriting random handles in the
|
|
* future, consider using PROC_THREAD_ATTRIBUTE_HANDLE_LIST to explicitly
|
|
* specify which handles should be inherited: http://blogs.msdn.com/b/oldnewthing/archive/2011/12/16/10248328.aspx
|
|
*
|
|
* Older versions of Windows return console pseudo-handles that cannot be
|
|
* made non-inheritable, so ignore those failures.
|
|
*/
|
|
_try_make_handle_noninheritable(GetStdHandle(STD_INPUT_HANDLE));
|
|
_try_make_handle_noninheritable(GetStdHandle(STD_OUTPUT_HANDLE));
|
|
_try_make_handle_noninheritable(GetStdHandle(STD_ERROR_HANDLE));
|
|
|
|
STARTUPINFOW startup;
|
|
ZeroMemory( &startup, sizeof(startup) );
|
|
startup.cb = sizeof(startup);
|
|
startup.hStdInput = nul_read.get();
|
|
startup.hStdOutput = stdout_write.get();
|
|
startup.hStdError = stderr_write.get();
|
|
startup.dwFlags = STARTF_USESTDHANDLES;
|
|
|
|
// 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 ack_write_as_int = cast_handle_to_int(ack_write.get());
|
|
if (cast_int_to_handle(ack_write_as_int) != ack_write.get()) {
|
|
// 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, "Cannot fit pipe handle value into 32-bits: 0x%p\n",
|
|
ack_write.get());
|
|
return -1;
|
|
}
|
|
|
|
// get path of current program
|
|
WCHAR program_path[MAX_PATH];
|
|
const 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, "Cannot get executable path: %s\n",
|
|
android::base::SystemErrorCodeToString(GetLastError()).c_str());
|
|
return -1;
|
|
}
|
|
|
|
WCHAR args[64];
|
|
snwprintf(args, arraysize(args), L"adb -L %s fork-server server --reply-fd %d",
|
|
socket_spec.c_str(), ack_write_as_int);
|
|
|
|
PROCESS_INFORMATION pinfo;
|
|
ZeroMemory(&pinfo, sizeof(pinfo));
|
|
|
|
if (!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 )) {
|
|
fprintf(stderr, "Cannot create process: %s\n",
|
|
android::base::SystemErrorCodeToString(GetLastError()).c_str());
|
|
return -1;
|
|
}
|
|
|
|
unique_handle process_handle(pinfo.hProcess);
|
|
pinfo.hProcess = NULL;
|
|
|
|
// Close handles that we no longer need to complete the rest.
|
|
CloseHandle(pinfo.hThread);
|
|
pinfo.hThread = NULL;
|
|
|
|
nul_read.reset();
|
|
ack_write.reset();
|
|
stdout_write.reset();
|
|
stderr_write.reset();
|
|
|
|
// Start threads to read from subprocess stdout/stderr and write to ours to make subprocess
|
|
// errors easier to diagnose. Note that the threads internally create inheritable handles, but
|
|
// that is ok because we've already spawned the subprocess.
|
|
|
|
// In the past, reading from a pipe before the child process's C Runtime
|
|
// started up and called GetFileType() caused a hang: http://blogs.msdn.com/b/oldnewthing/archive/2011/12/02/10243553.aspx#10244216
|
|
// This is reportedly fixed in Windows Vista: https://support.microsoft.com/en-us/kb/2009703
|
|
// I was unable to reproduce the problem on Windows XP. It sounds like a
|
|
// Windows Update may have fixed this: https://www.duckware.com/tech/peeknamedpipe.html
|
|
unique_handle stdout_thread(reinterpret_cast<HANDLE>(
|
|
_beginthreadex(NULL, 0, _redirect_stdout_thread, stdout_read.get(),
|
|
0, NULL)));
|
|
if (stdout_thread.get() == nullptr) {
|
|
fprintf(stderr, "Cannot create thread: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
stdout_read.release(); // Transfer ownership to new thread
|
|
|
|
unique_handle stderr_thread(reinterpret_cast<HANDLE>(
|
|
_beginthreadex(NULL, 0, _redirect_stderr_thread, stderr_read.get(),
|
|
0, NULL)));
|
|
if (stderr_thread.get() == nullptr) {
|
|
fprintf(stderr, "Cannot create thread: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
stderr_read.release(); // Transfer ownership to new thread
|
|
|
|
bool got_ack = false;
|
|
|
|
// Wait for the "OK\n" message, for the pipe to be closed, or other error.
|
|
{
|
|
char temp[3];
|
|
DWORD count = 0;
|
|
|
|
if (ReadFile(ack_read.get(), temp, sizeof(temp), &count, NULL)) {
|
|
const CHAR expected[] = "OK\n";
|
|
const DWORD expected_length = arraysize(expected) - 1;
|
|
if (count == expected_length &&
|
|
memcmp(temp, expected, expected_length) == 0) {
|
|
got_ack = true;
|
|
} else {
|
|
fprintf(stderr, "ADB server didn't ACK\n");
|
|
}
|
|
} else {
|
|
const DWORD err = GetLastError();
|
|
// If the ACK was not written and the process exited, GetLastError()
|
|
// is probably ERROR_BROKEN_PIPE, in which case that info is not
|
|
// useful to the user.
|
|
fprintf(stderr, "could not read ok from ADB Server%s\n",
|
|
err == ERROR_BROKEN_PIPE ? "" :
|
|
android::base::StringPrintf(": %s",
|
|
android::base::SystemErrorCodeToString(err).c_str()).c_str());
|
|
}
|
|
}
|
|
|
|
// Always try to wait a bit for threads reading stdout/stderr to finish.
|
|
// If the process started ok, it should close the pipes causing the threads
|
|
// to finish. If the process had an error, it should exit, also causing
|
|
// the pipes to be closed. In that case we want to read all of the output
|
|
// and write it out so that the user can diagnose failures.
|
|
const DWORD thread_timeout_ms = 15 * 1000;
|
|
const HANDLE threads[] = { stdout_thread.get(), stderr_thread.get() };
|
|
const DWORD wait_result = WaitForMultipleObjects(arraysize(threads),
|
|
threads, TRUE, thread_timeout_ms);
|
|
if (wait_result == WAIT_TIMEOUT) {
|
|
// Threads did not finish after waiting a little while. Perhaps the
|
|
// server didn't close pipes, or it is hung.
|
|
fprintf(stderr, "Timed-out waiting for threads to finish reading from "
|
|
"ADB Server\n");
|
|
// Process handles are signaled when the process exits, so if we wait
|
|
// on the handle for 0 seconds and it returns 'timeout', that means that
|
|
// the process is still running.
|
|
if (WaitForSingleObject(process_handle.get(), 0) == WAIT_TIMEOUT) {
|
|
// We could TerminateProcess(), but that seems somewhat presumptive.
|
|
fprintf(stderr, "ADB Server is running: process id %lu\n",
|
|
pinfo.dwProcessId);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
if (wait_result != WAIT_OBJECT_0) {
|
|
fprintf(stderr, "Unexpected result waiting for threads: %lu: %s\n",
|
|
wait_result, android::base::SystemErrorCodeToString(GetLastError()).c_str());
|
|
return -1;
|
|
}
|
|
|
|
// For now ignore the thread exit codes and assume they worked properly.
|
|
|
|
if (!got_ack) {
|
|
return -1;
|
|
}
|
|
#else /* !defined(_WIN32) */
|
|
// 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]
|
|
int fd[2];
|
|
if (pipe(fd)) {
|
|
fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno);
|
|
return -1;
|
|
}
|
|
|
|
std::string path = android::base::GetExecutablePath();
|
|
|
|
pid_t pid = fork();
|
|
if (pid < 0) return -1;
|
|
|
|
if (pid == 0) {
|
|
// child side of the fork
|
|
|
|
adb_close(fd[0]);
|
|
|
|
char reply_fd[30];
|
|
snprintf(reply_fd, sizeof(reply_fd), "%d", fd[1]);
|
|
// child process
|
|
int result = execl(path.c_str(), "adb", "-L", socket_spec.c_str(), "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;
|
|
}
|
|
}
|
|
#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
|
|
return SendProtocolString(reply_fd, listeners);
|
|
}
|
|
|
|
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(type, serial, nullptr, &error_msg);
|
|
if (!transport) {
|
|
SendFail(reply_fd, error_msg);
|
|
return 1;
|
|
}
|
|
|
|
std::string error;
|
|
InstallStatus r;
|
|
int resolved_tcp_port = 0;
|
|
if (kill_forward) {
|
|
r = remove_listener(pieces[0].c_str(), transport);
|
|
} else {
|
|
r = install_listener(pieces[0], pieces[1].c_str(), transport, no_rebind,
|
|
&resolved_tcp_port, &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);
|
|
|
|
// If a TCP port was resolved, send the actual port number back.
|
|
if (resolved_tcp_port != 0) {
|
|
SendProtocolString(reply_fd, android::base::StringPrintf("%d", resolved_tcp_port));
|
|
}
|
|
|
|
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);
|
|
|
|
// On Windows, if the process exits with open sockets that
|
|
// shutdown(SD_SEND) has not been called on, TCP RST segments will be
|
|
// sent to the peers which will cause their next recv() to error-out
|
|
// with WSAECONNRESET. In the case of this code, that means the client
|
|
// may not read the OKAY sent above.
|
|
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;
|
|
atransport* t = acquire_one_transport(type, serial, nullptr, &error);
|
|
if (t != nullptr) {
|
|
s->transport = t;
|
|
SendOkay(reply_fd);
|
|
} else {
|
|
SendFail(reply_fd, error);
|
|
}
|
|
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...");
|
|
std::string device_list = list_transports(long_listing);
|
|
D("Sending device list...");
|
|
return SendOkay(reply_fd, device_list);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
if (!strcmp(service, "features")) {
|
|
std::string error;
|
|
atransport* t = acquire_one_transport(type, serial, nullptr, &error);
|
|
if (t != nullptr) {
|
|
SendOkay(reply_fd, FeatureSetToString(t->features()));
|
|
} else {
|
|
SendFail(reply_fd, error);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// remove TCP transport
|
|
if (!strncmp(service, "disconnect:", 11)) {
|
|
const std::string address(service + 11);
|
|
if (address.empty()) {
|
|
kick_all_tcp_devices();
|
|
return SendOkay(reply_fd, "disconnected everything");
|
|
}
|
|
|
|
std::string serial;
|
|
std::string host;
|
|
int port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT;
|
|
std::string error;
|
|
if (!android::base::ParseNetAddress(address, &host, &port, &serial, &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()));
|
|
}
|
|
kick_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 error;
|
|
atransport* t = acquire_one_transport(type, serial, nullptr, &error);
|
|
if (t) {
|
|
return SendOkay(reply_fd, t->serial ? t->serial : "unknown");
|
|
} else {
|
|
return SendFail(reply_fd, error);
|
|
}
|
|
}
|
|
if (!strcmp(service, "get-devpath")) {
|
|
std::string error;
|
|
atransport* t = acquire_one_transport(type, serial, nullptr, &error);
|
|
if (t) {
|
|
return SendOkay(reply_fd, t->devpath ? t->devpath : "unknown");
|
|
} else {
|
|
return SendFail(reply_fd, error);
|
|
}
|
|
}
|
|
if (!strcmp(service, "get-state")) {
|
|
std::string error;
|
|
atransport* t = acquire_one_transport(type, serial, nullptr, &error);
|
|
if (t) {
|
|
return SendOkay(reply_fd, t->connection_state_name());
|
|
} else {
|
|
return SendFail(reply_fd, error);
|
|
}
|
|
}
|
|
|
|
// 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 (!strcmp(service, "reconnect")) {
|
|
if (s->transport != nullptr) {
|
|
kick_transport(s->transport);
|
|
}
|
|
return SendOkay(reply_fd, "done");
|
|
}
|
|
#endif // ADB_HOST
|
|
|
|
int ret = handle_forward_request(service, type, serial, reply_fd);
|
|
if (ret >= 0)
|
|
return ret - 1;
|
|
return -1;
|
|
}
|