Revert "Revert "Split adb_main.cpp into client and daemon.""
This reverts commit 218dbccefa3d874d988e4784bda5e45b7643cb5a.
Change-Id: I74088db34983dc99e316a07c6ddc294340e0eb71
diff --git a/adb/Android.mk b/adb/Android.mk
index 1aed2cb..4ffb589 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -175,7 +175,7 @@
LOCAL_CLANG := $(adb_host_clang)
LOCAL_SRC_FILES := \
- adb_main.cpp \
+ client/main.cpp \
console.cpp \
commandline.cpp \
adb_client.cpp \
@@ -227,7 +227,7 @@
LOCAL_CLANG := true
LOCAL_SRC_FILES := \
- adb_main.cpp \
+ daemon/main.cpp \
services.cpp \
file_sync_service.cpp \
framebuffer_service.cpp \
diff --git a/adb/adb.cpp b/adb/adb.cpp
index 9abcc73..c4e3434 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -796,13 +796,12 @@
return 0;
}
-int handle_host_request(const char* service, TransportType type, const char* serial, int reply_fd, asocket *s)
-{
- if(!strcmp(service, "kill")) {
- fprintf(stderr,"adb server killed by remote request\n");
+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);
- usb_cleanup();
exit(0);
}
diff --git a/adb/adb.h b/adb/adb.h
index daabf8c..7942a86 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -324,7 +324,6 @@
/* usb host/client interface */
void usb_init();
-void usb_cleanup();
int usb_write(usb_handle *h, const void *data, int len);
int usb_read(usb_handle *h, void *data, int len);
int usb_close(usb_handle *h);
diff --git a/adb/adb_main.cpp b/adb/adb_main.cpp
deleted file mode 100644
index 3f88d13..0000000
--- a/adb/adb_main.cpp
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define TRACE_TAG TRACE_ADB
-
-#include "sysdeps.h"
-
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "adb.h"
-#include "adb_auth.h"
-#include "adb_listeners.h"
-#include "transport.h"
-
-#include <base/stringprintf.h>
-
-#if !ADB_HOST
-#include <getopt.h>
-#include <sys/prctl.h>
-
-#include "cutils/properties.h"
-#include "private/android_filesystem_config.h"
-#include "selinux/selinux.h"
-
-#include "qemu_tracing.h"
-#endif
-
-static void adb_cleanup(void)
-{
- usb_cleanup();
-}
-
-#if defined(_WIN32)
-static BOOL WINAPI ctrlc_handler(DWORD type)
-{
- exit(STATUS_CONTROL_C_EXIT);
- return TRUE;
-}
-#endif
-
-#if ADB_HOST
-#ifdef WORKAROUND_BUG6558362
-#include <sched.h>
-#define AFFINITY_ENVVAR "ADB_CPU_AFFINITY_BUG6558362"
-void adb_set_affinity(void)
-{
- cpu_set_t cpu_set;
- const char* cpunum_str = getenv(AFFINITY_ENVVAR);
- char* strtol_res;
- int cpu_num;
-
- if (!cpunum_str || !*cpunum_str)
- return;
- cpu_num = strtol(cpunum_str, &strtol_res, 0);
- if (*strtol_res != '\0')
- fatal("bad number (%s) in env var %s. Expecting 0..n.\n", cpunum_str, AFFINITY_ENVVAR);
-
- sched_getaffinity(0, sizeof(cpu_set), &cpu_set);
- D("orig cpu_set[0]=0x%08lx\n", cpu_set.__bits[0]);
- CPU_ZERO(&cpu_set);
- CPU_SET(cpu_num, &cpu_set);
- sched_setaffinity(0, sizeof(cpu_set), &cpu_set);
- sched_getaffinity(0, sizeof(cpu_set), &cpu_set);
- D("new cpu_set[0]=0x%08lx\n", cpu_set.__bits[0]);
-}
-#endif
-#else /* ADB_HOST */
-static const char *root_seclabel = NULL;
-
-static void drop_capabilities_bounding_set_if_needed() {
-#ifdef ALLOW_ADBD_ROOT
- char value[PROPERTY_VALUE_MAX];
- property_get("ro.debuggable", value, "");
- if (strcmp(value, "1") == 0) {
- return;
- }
-#endif
- int i;
- for (i = 0; prctl(PR_CAPBSET_READ, i, 0, 0, 0) >= 0; i++) {
- if (i == CAP_SETUID || i == CAP_SETGID) {
- // CAP_SETUID CAP_SETGID needed by /system/bin/run-as
- continue;
- }
- int err = prctl(PR_CAPBSET_DROP, i, 0, 0, 0);
-
- // Some kernels don't have file capabilities compiled in, and
- // prctl(PR_CAPBSET_DROP) returns EINVAL. Don't automatically
- // die when we see such misconfigured kernels.
- if ((err < 0) && (errno != EINVAL)) {
- exit(1);
- }
- }
-}
-
-static bool should_drop_privileges() {
-#if defined(ALLOW_ADBD_ROOT)
- char value[PROPERTY_VALUE_MAX];
-
- // The emulator is never secure, so don't drop privileges there.
- // TODO: this seems like a bug --- shouldn't the emulator behave like a device?
- property_get("ro.kernel.qemu", value, "");
- if (strcmp(value, "1") == 0) {
- return false;
- }
-
- // The properties that affect `adb root` and `adb unroot` are ro.secure and
- // ro.debuggable. In this context the names don't make the expected behavior
- // particularly obvious.
- //
- // ro.debuggable:
- // Allowed to become root, but not necessarily the default. Set to 1 on
- // eng and userdebug builds.
- //
- // ro.secure:
- // Drop privileges by default. Set to 1 on userdebug and user builds.
- property_get("ro.secure", value, "1");
- bool ro_secure = (strcmp(value, "1") == 0);
-
- property_get("ro.debuggable", value, "");
- bool ro_debuggable = (strcmp(value, "1") == 0);
-
- // Drop privileges if ro.secure is set...
- bool drop = ro_secure;
-
- property_get("service.adb.root", value, "");
- bool adb_root = (strcmp(value, "1") == 0);
- bool adb_unroot = (strcmp(value, "0") == 0);
-
- // ...except "adb root" lets you keep privileges in a debuggable build.
- if (ro_debuggable && adb_root) {
- drop = false;
- }
-
- // ...and "adb unroot" lets you explicitly drop privileges.
- if (adb_unroot) {
- drop = true;
- }
-
- return drop;
-#else
- return true; // "adb root" not allowed, always drop privileges.
-#endif /* ALLOW_ADBD_ROOT */
-}
-#endif /* ADB_HOST */
-
-void start_logging(void)
-{
-#if defined(_WIN32)
- char temp[ MAX_PATH ];
- FILE* fnul;
- FILE* flog;
-
- GetTempPath( sizeof(temp) - 8, temp );
- strcat( temp, "adb.log" );
-
- /* Win32 specific redirections */
- fnul = fopen( "NUL", "rt" );
- if (fnul != NULL)
- stdin[0] = fnul[0];
-
- flog = fopen( temp, "at" );
- if (flog == NULL)
- flog = fnul;
-
- setvbuf( flog, NULL, _IONBF, 0 );
-
- stdout[0] = flog[0];
- stderr[0] = flog[0];
- fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
-#else
- int fd;
-
- fd = unix_open("/dev/null", O_RDONLY);
- dup2(fd, 0);
- adb_close(fd);
-
- fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640);
- if(fd < 0) {
- fd = unix_open("/dev/null", O_WRONLY);
- }
- dup2(fd, 1);
- dup2(fd, 2);
- adb_close(fd);
- fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
-#endif
-}
-
-int adb_main(int is_daemon, int server_port)
-{
-#if !ADB_HOST
- int port;
- char value[PROPERTY_VALUE_MAX];
-
- umask(000);
-#endif
-
- atexit(adb_cleanup);
-#if defined(_WIN32)
- SetConsoleCtrlHandler( ctrlc_handler, TRUE );
-#else
- // No SIGCHLD. Let the service subproc handle its children.
- signal(SIGPIPE, SIG_IGN);
-#endif
-
- init_transport_registration();
-
-#if ADB_HOST
- HOST = 1;
-
-#ifdef WORKAROUND_BUG6558362
- if(is_daemon) adb_set_affinity();
-#endif
- usb_init();
- local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
- adb_auth_init();
-
- std::string local_name = android::base::StringPrintf("tcp:%d", server_port);
- if (install_listener(local_name, "*smartsocket*", NULL, 0)) {
- exit(1);
- }
-#else
- // We need to call this even if auth isn't enabled because the file
- // descriptor will always be open.
- adbd_cloexec_auth_socket();
-
- property_get("ro.adb.secure", value, "0");
- auth_enabled = !strcmp(value, "1");
- if (auth_enabled)
- adbd_auth_init();
-
- // Our external storage path may be different than apps, since
- // we aren't able to bind mount after dropping root.
- const char* adb_external_storage = getenv("ADB_EXTERNAL_STORAGE");
- if (NULL != adb_external_storage) {
- setenv("EXTERNAL_STORAGE", adb_external_storage, 1);
- } else {
- D("Warning: ADB_EXTERNAL_STORAGE is not set. Leaving EXTERNAL_STORAGE"
- " unchanged.\n");
- }
-
- /* add extra groups:
- ** AID_ADB to access the USB driver
- ** AID_LOG to read system logs (adb logcat)
- ** AID_INPUT to diagnose input issues (getevent)
- ** AID_INET to diagnose network issues (ping)
- ** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump)
- ** AID_SDCARD_R to allow reading from the SD card
- ** AID_SDCARD_RW to allow writing to the SD card
- ** AID_NET_BW_STATS to read out qtaguid statistics
- */
- gid_t groups[] = { AID_ADB, AID_LOG, AID_INPUT, AID_INET, AID_NET_BT,
- AID_NET_BT_ADMIN, AID_SDCARD_R, AID_SDCARD_RW,
- AID_NET_BW_STATS };
- if (setgroups(sizeof(groups)/sizeof(groups[0]), groups) != 0) {
- exit(1);
- }
-
- /* don't listen on a port (default 5037) if running in secure mode */
- /* don't run as root if we are running in secure mode */
- if (should_drop_privileges()) {
- drop_capabilities_bounding_set_if_needed();
-
- /* then switch user and group to "shell" */
- if (setgid(AID_SHELL) != 0) {
- exit(1);
- }
- if (setuid(AID_SHELL) != 0) {
- exit(1);
- }
-
- D("Local port disabled\n");
- } else {
- if ((root_seclabel != NULL) && (is_selinux_enabled() > 0)) {
- // b/12587913: fix setcon to allow const pointers
- if (setcon((char *)root_seclabel) < 0) {
- exit(1);
- }
- }
- std::string local_name = android::base::StringPrintf("tcp:%d", server_port);
- if (install_listener(local_name, "*smartsocket*", NULL, 0)) {
- exit(1);
- }
- }
-
- int usb = 0;
- if (access(USB_ADB_PATH, F_OK) == 0 || access(USB_FFS_ADB_EP0, F_OK) == 0) {
- // listen on USB
- usb_init();
- usb = 1;
- }
-
- // If one of these properties is set, also listen on that port
- // If one of the properties isn't set and we couldn't listen on usb,
- // listen on the default port.
- property_get("service.adb.tcp.port", value, "");
- if (!value[0]) {
- property_get("persist.adb.tcp.port", value, "");
- }
- if (sscanf(value, "%d", &port) == 1 && port > 0) {
- printf("using port=%d\n", port);
- // listen on TCP port specified by service.adb.tcp.port property
- local_init(port);
- } else if (!usb) {
- // listen on default port
- local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
- }
-
- D("adb_main(): pre init_jdwp()\n");
- init_jdwp();
- D("adb_main(): post init_jdwp()\n");
-#endif
-
- if (is_daemon)
- {
- // inform our parent that we are up and running.
-#if defined(_WIN32)
- DWORD count;
- WriteFile( GetStdHandle( STD_OUTPUT_HANDLE ), "OK\n", 3, &count, NULL );
-#else
- fprintf(stderr, "OK\n");
-#endif
- start_logging();
- }
- D("Event loop starting\n");
-
- fdevent_loop();
-
- usb_cleanup();
-
- return 0;
-}
-
-#if !ADB_HOST
-void close_stdin() {
- int fd = unix_open("/dev/null", O_RDONLY);
- if (fd == -1) {
- perror("failed to open /dev/null, stdin will remain open");
- return;
- }
- dup2(fd, 0);
- adb_close(fd);
-}
-#endif
-
-// TODO(danalbert): Split this file up into adb_main.cpp and adbd_main.cpp.
-int main(int argc, char **argv) {
-#if ADB_HOST
- // adb client/server
- adb_sysdeps_init();
- adb_trace_init();
- D("Handling commandline()\n");
- return adb_commandline(argc - 1, const_cast<const char**>(argv + 1));
-#else
- // adbd
- while (true) {
- static struct option opts[] = {
- {"root_seclabel", required_argument, nullptr, 's'},
- {"device_banner", required_argument, nullptr, 'b'},
- {"version", no_argument, nullptr, 'v'},
- };
-
- int option_index = 0;
- int c = getopt_long(argc, argv, "", opts, &option_index);
- if (c == -1)
- break;
- switch (c) {
- case 's':
- root_seclabel = optarg;
- break;
- case 'b':
- adb_device_banner = optarg;
- break;
- case 'v':
- printf("Android Debug Bridge Daemon version %d.%d.%d %s\n",
- ADB_VERSION_MAJOR, ADB_VERSION_MINOR, ADB_SERVER_VERSION,
- ADB_REVISION);
- return 0;
- default:
- break;
- }
- }
-
- close_stdin();
-
- adb_trace_init();
-
- /* If adbd runs inside the emulator this will enable adb tracing via
- * adb-debug qemud service in the emulator. */
- adb_qemu_trace_init();
-
- D("Handling main()\n");
- return adb_main(0, DEFAULT_ADB_PORT);
-#endif
-}
diff --git a/adb/client/main.cpp b/adb/client/main.cpp
new file mode 100644
index 0000000..468909a
--- /dev/null
+++ b/adb/client/main.cpp
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define TRACE_TAG TRACE_ADB
+
+#include "sysdeps.h"
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// We only build the affinity WAR code for Linux.
+#if defined(__linux__)
+#include <sched.h>
+#endif
+
+#include "base/file.h"
+#include "base/logging.h"
+#include "base/stringprintf.h"
+
+#include "adb.h"
+#include "adb_auth.h"
+#include "adb_listeners.h"
+#include "transport.h"
+
+#if defined(WORKAROUND_BUG6558362) && defined(__linux__)
+static const bool kWorkaroundBug6558362 = true;
+#else
+static const bool kWorkaroundBug6558362 = false;
+#endif
+
+static void adb_workaround_affinity(void) {
+#if defined(__linux__)
+ const char affinity_env[] = "ADB_CPU_AFFINITY_BUG6558362";
+ const char* cpunum_str = getenv(affinity_env);
+ if (cpunum_str == nullptr || *cpunum_str == '\0') {
+ return;
+ }
+
+ char* strtol_res;
+ int cpu_num = strtol(cpunum_str, &strtol_res, 0);
+ if (*strtol_res != '\0') {
+ fatal("bad number (%s) in env var %s. Expecting 0..n.\n", cpunum_str,
+ affinity_env);
+ }
+
+ cpu_set_t cpu_set;
+ sched_getaffinity(0, sizeof(cpu_set), &cpu_set);
+ D("orig cpu_set[0]=0x%08lx\n", cpu_set.__bits[0]);
+
+ CPU_ZERO(&cpu_set);
+ CPU_SET(cpu_num, &cpu_set);
+ sched_setaffinity(0, sizeof(cpu_set), &cpu_set);
+
+ sched_getaffinity(0, sizeof(cpu_set), &cpu_set);
+ D("new cpu_set[0]=0x%08lx\n", cpu_set.__bits[0]);
+#else
+ // No workaround was ever implemented for the other platforms.
+#endif
+}
+
+#if defined(_WIN32)
+static const char kNullFileName[] = "NUL";
+
+static BOOL WINAPI ctrlc_handler(DWORD type) {
+ exit(STATUS_CONTROL_C_EXIT);
+ return TRUE;
+}
+
+static std::string GetLogFilePath() {
+ const char log_name[] = "adb.log";
+ char temp_path[MAX_PATH - sizeof(log_name) + 1];
+
+ // https://msdn.microsoft.com/en-us/library/windows/desktop/aa364992%28v=vs.85%29.aspx
+ DWORD nchars = GetTempPath(sizeof(temp_path), temp_path);
+ CHECK_LE(nchars, sizeof(temp_path));
+ if (nchars == 0) {
+ // TODO(danalbert): Log the error message from FormatError().
+ // Windows unfortunately has two errnos, errno and GetLastError(), so
+ // I'm not sure what to do about PLOG here. Probably better to just
+ // ignore it and add a simplified version of FormatError() for use in
+ // log messages.
+ LOG(ERROR) << "Error creating log file";
+ }
+
+ return std::string(temp_path) + log_name;
+}
+#else
+static const char kNullFileName[] = "/dev/null";
+
+static std::string GetLogFilePath() {
+ return std::string("/tmp/adb.log");
+}
+#endif
+
+static void close_stdin() {
+ int fd = unix_open(kNullFileName, O_RDONLY);
+ CHECK_NE(fd, -1);
+ dup2(fd, STDIN_FILENO);
+ adb_close(fd);
+}
+
+static void setup_daemon_logging(void) {
+ int fd = unix_open(GetLogFilePath().c_str(), O_WRONLY | O_CREAT | O_APPEND,
+ 0640);
+ if (fd == -1) {
+ fd = unix_open(kNullFileName, O_WRONLY);
+ }
+ dup2(fd, STDOUT_FILENO);
+ dup2(fd, STDERR_FILENO);
+ adb_close(fd);
+ fprintf(stderr, "--- adb starting (pid %d) ---\n", getpid());
+}
+
+int adb_main(int is_daemon, int server_port) {
+ HOST = 1;
+
+#if defined(_WIN32)
+ SetConsoleCtrlHandler(ctrlc_handler, TRUE);
+#else
+ signal(SIGPIPE, SIG_IGN);
+#endif
+
+ init_transport_registration();
+
+ if (kWorkaroundBug6558362 && is_daemon) {
+ adb_workaround_affinity();
+ }
+
+ usb_init();
+ local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
+ adb_auth_init();
+
+ std::string local_name = android::base::StringPrintf("tcp:%d", server_port);
+ if (install_listener(local_name, "*smartsocket*", nullptr, 0)) {
+ LOG(FATAL) << "Could not install *smartsocket* listener";
+ }
+
+ if (is_daemon) {
+ // Inform our parent that we are up and running.
+ // TODO(danalbert): Can't use SendOkay because we're sending "OK\n", not
+ // "OKAY".
+ // TODO(danalbert): Why do we use stdout for Windows?
+#if defined(_WIN32)
+ int reply_fd = STDOUT_FILENO;
+#else
+ int reply_fd = STDERR_FILENO;
+#endif
+ android::base::WriteStringToFd("OK\n", reply_fd);
+ close_stdin();
+ setup_daemon_logging();
+ }
+
+ D("Event loop starting\n");
+ fdevent_loop();
+
+ return 0;
+}
+
+int main(int argc, char** argv) {
+ adb_sysdeps_init();
+
+ android::base::InitLogging(argv);
+ adb_trace_init();
+ D("Handling commandline()\n");
+ return adb_commandline(argc - 1, const_cast<const char**>(argv + 1));
+}
diff --git a/adb/daemon/main.cpp b/adb/daemon/main.cpp
new file mode 100644
index 0000000..99ff539
--- /dev/null
+++ b/adb/daemon/main.cpp
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define TRACE_TAG TRACE_ADB
+
+#include "sysdeps.h"
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <sys/prctl.h>
+
+#include "base/logging.h"
+#include "base/stringprintf.h"
+#include "cutils/properties.h"
+#include "private/android_filesystem_config.h"
+#include "selinux/selinux.h"
+
+#include "adb.h"
+#include "adb_auth.h"
+#include "adb_listeners.h"
+#include "transport.h"
+#include "qemu_tracing.h"
+
+static const char* root_seclabel = nullptr;
+
+static void drop_capabilities_bounding_set_if_needed() {
+#ifdef ALLOW_ADBD_ROOT
+ char value[PROPERTY_VALUE_MAX];
+ property_get("ro.debuggable", value, "");
+ if (strcmp(value, "1") == 0) {
+ return;
+ }
+#endif
+ for (int i = 0; prctl(PR_CAPBSET_READ, i, 0, 0, 0) >= 0; i++) {
+ if (i == CAP_SETUID || i == CAP_SETGID) {
+ // CAP_SETUID CAP_SETGID needed by /system/bin/run-as
+ continue;
+ }
+
+ int err = prctl(PR_CAPBSET_DROP, i, 0, 0, 0);
+
+ // Some kernels don't have file capabilities compiled in, and
+ // prctl(PR_CAPBSET_DROP) returns EINVAL. Don't automatically
+ // die when we see such misconfigured kernels.
+ if ((err < 0) && (errno != EINVAL)) {
+ PLOG(FATAL) << "Could not drop capabilities";
+ }
+ }
+}
+
+static bool should_drop_privileges() {
+#if defined(ALLOW_ADBD_ROOT)
+ char value[PROPERTY_VALUE_MAX];
+
+ // The emulator is never secure, so don't drop privileges there.
+ // TODO: this seems like a bug --- shouldn't the emulator behave like a device?
+ property_get("ro.kernel.qemu", value, "");
+ if (strcmp(value, "1") == 0) {
+ return false;
+ }
+
+ // The properties that affect `adb root` and `adb unroot` are ro.secure and
+ // ro.debuggable. In this context the names don't make the expected behavior
+ // particularly obvious.
+ //
+ // ro.debuggable:
+ // Allowed to become root, but not necessarily the default. Set to 1 on
+ // eng and userdebug builds.
+ //
+ // ro.secure:
+ // Drop privileges by default. Set to 1 on userdebug and user builds.
+ property_get("ro.secure", value, "1");
+ bool ro_secure = (strcmp(value, "1") == 0);
+
+ property_get("ro.debuggable", value, "");
+ bool ro_debuggable = (strcmp(value, "1") == 0);
+
+ // Drop privileges if ro.secure is set...
+ bool drop = ro_secure;
+
+ property_get("service.adb.root", value, "");
+ bool adb_root = (strcmp(value, "1") == 0);
+ bool adb_unroot = (strcmp(value, "0") == 0);
+
+ // ...except "adb root" lets you keep privileges in a debuggable build.
+ if (ro_debuggable && adb_root) {
+ drop = false;
+ }
+
+ // ...and "adb unroot" lets you explicitly drop privileges.
+ if (adb_unroot) {
+ drop = true;
+ }
+
+ return drop;
+#else
+ return true; // "adb root" not allowed, always drop privileges.
+#endif // ALLOW_ADBD_ROOT
+}
+
+int adbd_main(int server_port) {
+ umask(0);
+
+ signal(SIGPIPE, SIG_IGN);
+
+ init_transport_registration();
+
+ // We need to call this even if auth isn't enabled because the file
+ // descriptor will always be open.
+ adbd_cloexec_auth_socket();
+
+ auth_enabled = property_get_bool("ro.adb.secure", 0) != 0;
+ if (auth_enabled) {
+ adbd_auth_init();
+ }
+
+ // Our external storage path may be different than apps, since
+ // we aren't able to bind mount after dropping root.
+ const char* adb_external_storage = getenv("ADB_EXTERNAL_STORAGE");
+ if (adb_external_storage != nullptr) {
+ setenv("EXTERNAL_STORAGE", adb_external_storage, 1);
+ } else {
+ D("Warning: ADB_EXTERNAL_STORAGE is not set. Leaving EXTERNAL_STORAGE"
+ " unchanged.\n");
+ }
+
+ // Add extra groups:
+ // AID_ADB to access the USB driver
+ // AID_LOG to read system logs (adb logcat)
+ // AID_INPUT to diagnose input issues (getevent)
+ // AID_INET to diagnose network issues (ping)
+ // AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump)
+ // AID_SDCARD_R to allow reading from the SD card
+ // AID_SDCARD_RW to allow writing to the SD card
+ // AID_NET_BW_STATS to read out qtaguid statistics
+ gid_t groups[] = {AID_ADB, AID_LOG, AID_INPUT,
+ AID_INET, AID_NET_BT, AID_NET_BT_ADMIN,
+ AID_SDCARD_R, AID_SDCARD_RW, AID_NET_BW_STATS};
+ if (setgroups(sizeof(groups) / sizeof(groups[0]), groups) != 0) {
+ PLOG(FATAL) << "Could not set supplental groups";
+ }
+
+ /* don't listen on a port (default 5037) if running in secure mode */
+ /* don't run as root if we are running in secure mode */
+ if (should_drop_privileges()) {
+ drop_capabilities_bounding_set_if_needed();
+
+ /* then switch user and group to "shell" */
+ if (setgid(AID_SHELL) != 0) {
+ PLOG(FATAL) << "Could not setgid";
+ }
+ if (setuid(AID_SHELL) != 0) {
+ PLOG(FATAL) << "Could not setuid";
+ }
+
+ D("Local port disabled\n");
+ } else {
+ if ((root_seclabel != nullptr) && (is_selinux_enabled() > 0)) {
+ if (setcon(root_seclabel) < 0) {
+ LOG(FATAL) << "Could not set selinux context";
+ }
+ }
+ std::string local_name =
+ android::base::StringPrintf("tcp:%d", server_port);
+ if (install_listener(local_name, "*smartsocket*", nullptr, 0)) {
+ LOG(FATAL) << "Could not install *smartsocket* listener";
+ }
+ }
+
+ bool is_usb = false;
+ if (access(USB_ADB_PATH, F_OK) == 0 || access(USB_FFS_ADB_EP0, F_OK) == 0) {
+ // Listen on USB.
+ usb_init();
+ is_usb = true;
+ }
+
+ // If one of these properties is set, also listen on that port.
+ // If one of the properties isn't set and we couldn't listen on usb, listen
+ // on the default port.
+ char prop_port[PROPERTY_VALUE_MAX];
+ property_get("service.adb.tcp.port", prop_port, "");
+ if (prop_port[0] == '\0') {
+ property_get("persist.adb.tcp.port", prop_port, "");
+ }
+
+ int port;
+ if (sscanf(prop_port, "%d", &port) == 1 && port > 0) {
+ printf("using port=%d\n", port);
+ // Listen on TCP port specified by service.adb.tcp.port property.
+ local_init(port);
+ } else if (!is_usb) {
+ // Listen on default port.
+ local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
+ }
+
+ D("adbd_main(): pre init_jdwp()\n");
+ init_jdwp();
+ D("adbd_main(): post init_jdwp()\n");
+
+ D("Event loop starting\n");
+ fdevent_loop();
+
+ return 0;
+}
+
+static void close_stdin() {
+ int fd = unix_open("/dev/null", O_RDONLY);
+ if (fd == -1) {
+ perror("failed to open /dev/null, stdin will remain open");
+ return;
+ }
+ dup2(fd, STDIN_FILENO);
+ adb_close(fd);
+}
+
+int main(int argc, char** argv) {
+ android::base::InitLogging(argv);
+
+ while (true) {
+ static struct option opts[] = {
+ {"root_seclabel", required_argument, nullptr, 's'},
+ {"device_banner", required_argument, nullptr, 'b'},
+ {"version", no_argument, nullptr, 'v'},
+ };
+
+ int option_index = 0;
+ int c = getopt_long(argc, argv, "", opts, &option_index);
+ if (c == -1) {
+ break;
+ }
+
+ switch (c) {
+ case 's':
+ root_seclabel = optarg;
+ break;
+ case 'b':
+ adb_device_banner = optarg;
+ break;
+ case 'v':
+ printf("Android Debug Bridge Daemon version %d.%d.%d %s\n",
+ ADB_VERSION_MAJOR, ADB_VERSION_MINOR, ADB_SERVER_VERSION,
+ ADB_REVISION);
+ return 0;
+ default:
+ // getopt already prints "adbd: invalid option -- %c" for us.
+ return 1;
+ }
+ }
+
+ close_stdin();
+
+ adb_trace_init();
+
+ /* If adbd runs inside the emulator this will enable adb tracing via
+ * adb-debug qemud service in the emulator. */
+ adb_qemu_trace_init();
+
+ D("Handling main()\n");
+ return adbd_main(DEFAULT_ADB_PORT);
+}
diff --git a/adb/usb_linux.cpp b/adb/usb_linux.cpp
index 1328830..1e5d5c8 100644
--- a/adb/usb_linux.cpp
+++ b/adb/usb_linux.cpp
@@ -310,10 +310,6 @@
closedir(busdir);
}
-void usb_cleanup()
-{
-}
-
static int usb_bulk_write(usb_handle *h, const void *data, int len)
{
struct usbdevfs_urb *urb = &h->urb_out;
diff --git a/adb/usb_linux_client.cpp b/adb/usb_linux_client.cpp
index 1d6ed94..63bb1c7 100644
--- a/adb/usb_linux_client.cpp
+++ b/adb/usb_linux_client.cpp
@@ -495,10 +495,6 @@
usb_adb_init();
}
-void usb_cleanup()
-{
-}
-
int usb_write(usb_handle *h, const void *data, int len)
{
return h->write(h, data, len);
diff --git a/adb/usb_osx.cpp b/adb/usb_osx.cpp
index 0d0b3ad..af65130 100644
--- a/adb/usb_osx.cpp
+++ b/adb/usb_osx.cpp
@@ -401,11 +401,18 @@
return NULL;
}
+static void usb_cleanup() {
+ DBG("usb_cleanup\n");
+ close_usb_devices();
+ if (currentRunLoop)
+ CFRunLoopStop(currentRunLoop);
+}
-static int initialized = 0;
void usb_init() {
- if (!initialized)
- {
+ static bool initialized = false;
+ if (!initialized) {
+ atexit(usb_cleanup);
+
adb_mutex_init(&start_lock, NULL);
adb_cond_init(&start_cond, NULL);
@@ -421,18 +428,10 @@
adb_mutex_destroy(&start_lock);
adb_cond_destroy(&start_cond);
- initialized = 1;
+ initialized = true;
}
}
-void usb_cleanup()
-{
- DBG("usb_cleanup\n");
- close_usb_devices();
- if (currentRunLoop)
- CFRunLoopStop(currentRunLoop);
-}
-
int usb_write(usb_handle *handle, const void *buf, int len)
{
IOReturn result;
diff --git a/adb/usb_windows.cpp b/adb/usb_windows.cpp
index 1d6ec8c..25deb1b 100644
--- a/adb/usb_windows.cpp
+++ b/adb/usb_windows.cpp
@@ -93,9 +93,6 @@
/// Initializes this module
void usb_init();
-/// Cleans up this module
-void usb_cleanup();
-
/// Opens usb interface (device) by interface (device) name.
usb_handle* do_usb_open(const wchar_t* interface_name);
@@ -186,9 +183,6 @@
}
}
-void usb_cleanup() {
-}
-
usb_handle* do_usb_open(const wchar_t* interface_name) {
// Allocate our handle
usb_handle* ret = (usb_handle*)malloc(sizeof(usb_handle));