adb: split daemon services out of service_to_fd.
Let minadbd override daemon services by pulling out the daemon services
into a separate translation unit, that isn't compiled into libadbd.
Bug: http://b/111831478
Test: mma
Change-Id: Iecfebea371e03864108eca9a4d2e9cfd5db34749
diff --git a/adb/daemon/services.cpp b/adb/daemon/services.cpp
new file mode 100644
index 0000000..25024b0
--- /dev/null
+++ b/adb/daemon/services.cpp
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2018 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 SERVICES
+
+#include "sysdeps.h"
+
+#include <errno.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <thread>
+
+#include <android-base/file.h>
+#include <android-base/parsenetaddress.h>
+#include <android-base/properties.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
+#include <android-base/unique_fd.h>
+#include <bootloader_message/bootloader_message.h>
+#include <cutils/android_reboot.h>
+#include <cutils/sockets.h>
+#include <log/log_properties.h>
+
+#include "adb.h"
+#include "adb_io.h"
+#include "adb_unique_fd.h"
+#include "adb_utils.h"
+#include "services.h"
+#include "socket_spec.h"
+#include "sysdeps.h"
+#include "transport.h"
+
+#include "daemon/file_sync_service.h"
+#include "daemon/framebuffer_service.h"
+#include "daemon/remount_service.h"
+#include "daemon/set_verity_enable_state_service.h"
+#include "daemon/shell_service.h"
+
+void restart_root_service(unique_fd fd) {
+ if (getuid() == 0) {
+ WriteFdExactly(fd.get(), "adbd is already running as root\n");
+ return;
+ }
+ if (!__android_log_is_debuggable()) {
+ WriteFdExactly(fd.get(), "adbd cannot run as root in production builds\n");
+ return;
+ }
+
+ android::base::SetProperty("service.adb.root", "1");
+ WriteFdExactly(fd.get(), "restarting adbd as root\n");
+}
+
+void restart_unroot_service(unique_fd fd) {
+ if (getuid() != 0) {
+ WriteFdExactly(fd.get(), "adbd not running as root\n");
+ return;
+ }
+ android::base::SetProperty("service.adb.root", "0");
+ WriteFdExactly(fd.get(), "restarting adbd as non root\n");
+}
+
+void restart_tcp_service(unique_fd fd, int port) {
+ if (port <= 0) {
+ WriteFdFmt(fd.get(), "invalid port %d\n", port);
+ return;
+ }
+
+ android::base::SetProperty("service.adb.tcp.port", android::base::StringPrintf("%d", port));
+ WriteFdFmt(fd.get(), "restarting in TCP mode port: %d\n", port);
+}
+
+void restart_usb_service(unique_fd fd) {
+ android::base::SetProperty("service.adb.tcp.port", "0");
+ WriteFdExactly(fd.get(), "restarting in USB mode\n");
+}
+
+bool reboot_service_impl(unique_fd fd, const std::string& arg) {
+ std::string reboot_arg = arg;
+ bool auto_reboot = false;
+
+ if (reboot_arg == "sideload-auto-reboot") {
+ auto_reboot = true;
+ reboot_arg = "sideload";
+ }
+
+ // It reboots into sideload mode by setting "--sideload" or "--sideload_auto_reboot"
+ // in the command file.
+ if (reboot_arg == "sideload") {
+ if (getuid() != 0) {
+ WriteFdExactly(fd.get(), "'adb root' is required for 'adb reboot sideload'.\n");
+ return false;
+ }
+
+ const std::vector<std::string> options = {auto_reboot ? "--sideload_auto_reboot"
+ : "--sideload"};
+ std::string err;
+ if (!write_bootloader_message(options, &err)) {
+ D("Failed to set bootloader message: %s", err.c_str());
+ return false;
+ }
+
+ reboot_arg = "recovery";
+ }
+
+ sync();
+
+ if (reboot_arg.empty()) reboot_arg = "adb";
+ std::string reboot_string = android::base::StringPrintf("reboot,%s", reboot_arg.c_str());
+ if (!android::base::SetProperty(ANDROID_RB_PROPERTY, reboot_string)) {
+ WriteFdFmt(fd.get(), "reboot (%s) failed\n", reboot_string.c_str());
+ return false;
+ }
+
+ return true;
+}
+
+void reboot_service(unique_fd fd, const std::string& arg) {
+ if (!reboot_service_impl(std::move(fd), arg)) {
+ return;
+ }
+ // Don't return early. Give the reboot command time to take effect
+ // to avoid messing up scripts which do "adb reboot && adb wait-for-device"
+ while (true) {
+ pause();
+ }
+}
+
+void reconnect_service(unique_fd fd, atransport* t) {
+ WriteFdExactly(fd.get(), "done");
+ kick_transport(t);
+}
+
+unique_fd reverse_service(const char* command, atransport* transport) {
+ int s[2];
+ if (adb_socketpair(s)) {
+ PLOG(ERROR) << "cannot create service socket pair.";
+ return unique_fd{};
+ }
+ VLOG(SERVICES) << "service socketpair: " << s[0] << ", " << s[1];
+ if (handle_forward_request(command, transport, s[1]) < 0) {
+ SendFail(s[1], "not a reverse forwarding command");
+ }
+ adb_close(s[1]);
+ return unique_fd{s[0]};
+}
+
+// Shell service string can look like:
+// shell[,arg1,arg2,...]:[command]
+unique_fd ShellService(const std::string& args, const atransport* transport) {
+ size_t delimiter_index = args.find(':');
+ if (delimiter_index == std::string::npos) {
+ LOG(ERROR) << "No ':' found in shell service arguments: " << args;
+ return unique_fd{};
+ }
+
+ const std::string service_args = args.substr(0, delimiter_index);
+ const std::string command = args.substr(delimiter_index + 1);
+
+ // Defaults:
+ // PTY for interactive, raw for non-interactive.
+ // No protocol.
+ // $TERM set to "dumb".
+ SubprocessType type(command.empty() ? SubprocessType::kPty : SubprocessType::kRaw);
+ SubprocessProtocol protocol = SubprocessProtocol::kNone;
+ std::string terminal_type = "dumb";
+
+ for (const std::string& arg : android::base::Split(service_args, ",")) {
+ if (arg == kShellServiceArgRaw) {
+ type = SubprocessType::kRaw;
+ } else if (arg == kShellServiceArgPty) {
+ type = SubprocessType::kPty;
+ } else if (arg == kShellServiceArgShellProtocol) {
+ protocol = SubprocessProtocol::kShell;
+ } else if (android::base::StartsWith(arg, "TERM=")) {
+ terminal_type = arg.substr(5);
+ } else if (!arg.empty()) {
+ // This is not an error to allow for future expansion.
+ LOG(WARNING) << "Ignoring unknown shell service argument: " << arg;
+ }
+ }
+
+ return StartSubprocess(command.c_str(), terminal_type.c_str(), type, protocol);
+}
+
+unique_fd daemon_service_to_fd(const char* name, atransport* transport) {
+ if (!strncmp("dev:", name, 4)) {
+ return unique_fd{unix_open(name + 4, O_RDWR | O_CLOEXEC)};
+ } else if (!strncmp(name, "framebuffer:", 12)) {
+ return create_service_thread("fb", framebuffer_service);
+ } else if (!strncmp(name, "jdwp:", 5)) {
+ return create_jdwp_connection_fd(atoi(name + 5));
+ } else if (!strncmp(name, "shell", 5)) {
+ return ShellService(name + 5, transport);
+ } else if (!strncmp(name, "exec:", 5)) {
+ return StartSubprocess(name + 5, nullptr, SubprocessType::kRaw, SubprocessProtocol::kNone);
+ } else if (!strncmp(name, "sync:", 5)) {
+ return create_service_thread("sync", file_sync_service);
+ } else if (!strncmp(name, "remount:", 8)) {
+ std::string options(name + strlen("remount:"));
+ return create_service_thread("remount",
+ std::bind(remount_service, std::placeholders::_1, options));
+ } else if (!strncmp(name, "reboot:", 7)) {
+ std::string arg(name + strlen("reboot:"));
+ return create_service_thread("reboot",
+ std::bind(reboot_service, std::placeholders::_1, arg));
+ } else if (!strncmp(name, "root:", 5)) {
+ return create_service_thread("root", restart_root_service);
+ } else if (!strncmp(name, "unroot:", 7)) {
+ return create_service_thread("unroot", restart_unroot_service);
+ } else if (!strncmp(name, "backup:", 7)) {
+ return StartSubprocess(
+ android::base::StringPrintf("/system/bin/bu backup %s", (name + 7)).c_str(),
+ nullptr, SubprocessType::kRaw, SubprocessProtocol::kNone);
+ } else if (!strncmp(name, "restore:", 8)) {
+ return StartSubprocess("/system/bin/bu restore", nullptr, SubprocessType::kRaw,
+ SubprocessProtocol::kNone);
+ } else if (!strncmp(name, "tcpip:", 6)) {
+ int port;
+ if (sscanf(name + 6, "%d", &port) != 1) {
+ return unique_fd{};
+ }
+ return create_service_thread("tcp",
+ std::bind(restart_tcp_service, std::placeholders::_1, port));
+ } else if (!strncmp(name, "usb:", 4)) {
+ return create_service_thread("usb", restart_usb_service);
+ } else if (!strncmp(name, "reverse:", 8)) {
+ return reverse_service(name + 8, transport);
+ } else if (!strncmp(name, "disable-verity:", 15)) {
+ return create_service_thread("verity-on", std::bind(set_verity_enabled_state_service,
+ std::placeholders::_1, false));
+ } else if (!strncmp(name, "enable-verity:", 15)) {
+ return create_service_thread("verity-off", std::bind(set_verity_enabled_state_service,
+ std::placeholders::_1, true));
+ } else if (!strcmp(name, "reconnect")) {
+ return create_service_thread(
+ "reconnect", std::bind(reconnect_service, std::placeholders::_1, transport));
+ }
+ return unique_fd{};
+}