Merge "Revert "Make the xtables lock readable only by AID_RADIO and root.""
diff --git a/adb/adb.cpp b/adb/adb.cpp
index 51d5876..39e71e5 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -253,6 +253,19 @@
send_packet(cp, t);
}
+#if ADB_HOST
+
+void SendConnectOnHost(atransport* t) {
+ // Send an empty message before A_CNXN message. This is because the data toggle of the ep_out on
+ // host and ep_in on device may not be the same.
+ apacket* p = get_apacket();
+ CHECK(p);
+ send_packet(p, t);
+ send_connect(t);
+}
+
+#endif
+
// qual_overwrite is used to overwrite a qualifier string. dst is a
// pointer to a char pointer. It is assumed that if *dst is non-NULL, it
// was malloc'ed and needs to freed. *dst will be set to a dup of src.
@@ -299,29 +312,29 @@
const std::string& type = pieces[0];
if (type == "bootloader") {
D("setting connection_state to kCsBootloader");
- t->connection_state = kCsBootloader;
+ t->SetConnectionState(kCsBootloader);
update_transports();
} else if (type == "device") {
D("setting connection_state to kCsDevice");
- t->connection_state = kCsDevice;
+ t->SetConnectionState(kCsDevice);
update_transports();
} else if (type == "recovery") {
D("setting connection_state to kCsRecovery");
- t->connection_state = kCsRecovery;
+ t->SetConnectionState(kCsRecovery);
update_transports();
} else if (type == "sideload") {
D("setting connection_state to kCsSideload");
- t->connection_state = kCsSideload;
+ t->SetConnectionState(kCsSideload);
update_transports();
} else {
D("setting connection_state to kCsHost");
- t->connection_state = kCsHost;
+ t->SetConnectionState(kCsHost);
}
}
static void handle_new_connection(atransport* t, apacket* p) {
- if (t->connection_state != kCsOffline) {
- t->connection_state = kCsOffline;
+ if (t->GetConnectionState() != kCsOffline) {
+ t->SetConnectionState(kCsOffline);
handle_offline(t);
}
@@ -355,10 +368,10 @@
if (p->msg.arg0){
send_packet(p, t);
#if ADB_HOST
- send_connect(t);
+ SendConnectOnHost(t);
#endif
} else {
- t->connection_state = kCsOffline;
+ t->SetConnectionState(kCsOffline);
handle_offline(t);
send_packet(p, t);
}
@@ -372,7 +385,9 @@
switch (p->msg.arg0) {
#if ADB_HOST
case ADB_AUTH_TOKEN:
- t->connection_state = kCsUnauthorized;
+ if (t->GetConnectionState() == kCsOffline) {
+ t->SetConnectionState(kCsUnauthorized);
+ }
send_auth_response(p->data, p->msg.data_length, t);
break;
#else
@@ -391,7 +406,7 @@
break;
#endif
default:
- t->connection_state = kCsOffline;
+ t->SetConnectionState(kCsOffline);
handle_offline(t);
break;
}
@@ -1032,7 +1047,6 @@
SendProtocolString(fd, s);
return 0;
}
-#endif
int handle_host_request(const char* service, TransportType type,
const char* serial, int reply_fd, asocket* s) {
@@ -1051,7 +1065,6 @@
android::base::quick_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
@@ -1096,16 +1109,10 @@
if (!strcmp(service, "reconnect-offline")) {
std::string response;
close_usb_devices([&response](const atransport* transport) {
- switch (transport->connection_state) {
+ switch (transport->GetConnectionState()) {
case kCsOffline:
case kCsUnauthorized:
- response += "reconnecting ";
- if (transport->serial) {
- response += transport->serial;
- } else {
- response += "<unknown>";
- }
- response += "\n";
+ response += "reconnecting " + transport->serial_name() + "\n";
return true;
default:
return false;
@@ -1129,7 +1136,6 @@
return 0;
}
-#if ADB_HOST
if (!strcmp(service, "host-features")) {
FeatureSet features = supported_features();
// Abuse features to report libusb status.
@@ -1139,7 +1145,6 @@
SendOkay(reply_fd, FeatureSetToString(features));
return 0;
}
-#endif
// remove TCP transport
if (!strncmp(service, "disconnect:", 11)) {
@@ -1209,15 +1214,19 @@
}
if (!strcmp(service, "reconnect")) {
- if (s->transport != nullptr) {
- kick_transport(s->transport);
+ std::string response;
+ atransport* t = acquire_one_transport(type, serial, nullptr, &response, true);
+ if (t != nullptr) {
+ kick_transport(t);
+ response =
+ "reconnecting " + t->serial_name() + " [" + t->connection_state_name() + "]\n";
}
- return SendOkay(reply_fd, "done");
+ return SendOkay(reply_fd, response);
}
-#endif // ADB_HOST
int ret = handle_forward_request(service, type, serial, reply_fd);
if (ret >= 0)
return ret - 1;
return -1;
}
+#endif // ADB_HOST
diff --git a/adb/adb.h b/adb/adb.h
index aea5fb8..e3675d8 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -139,7 +139,7 @@
int get_available_local_transport_index();
#endif
int init_socket_transport(atransport *t, int s, int port, int local);
-void init_usb_transport(atransport *t, usb_handle *usb, ConnectionState state);
+void init_usb_transport(atransport* t, usb_handle* usb);
std::string getEmulatorSerialString(int console_port);
#if ADB_HOST
@@ -222,6 +222,9 @@
void handle_offline(atransport *t);
void send_connect(atransport *t);
+#if ADB_HOST
+void SendConnectOnHost(atransport* t);
+#endif
void parse_banner(const std::string&, atransport* t);
diff --git a/adb/adb_client.cpp b/adb/adb_client.cpp
index b2b5c0e..b656887 100644
--- a/adb/adb_client.cpp
+++ b/adb/adb_client.cpp
@@ -136,8 +136,7 @@
return -2;
}
- if ((memcmp(&service[0],"host",4) != 0 || service == "host:reconnect") &&
- switch_socket_transport(fd, error)) {
+ if (memcmp(&service[0], "host", 4) != 0 && switch_socket_transport(fd, error)) {
return -1;
}
@@ -147,11 +146,9 @@
return -1;
}
- if (service != "reconnect") {
- if (!adb_status(fd, error)) {
- adb_close(fd);
- return -1;
- }
+ if (!adb_status(fd, error)) {
+ adb_close(fd);
+ return -1;
}
D("_adb_connect: return fd %d", fd);
diff --git a/adb/adb_trace.cpp b/adb/adb_trace.cpp
index c369d60..eac923d 100644
--- a/adb/adb_trace.cpp
+++ b/adb/adb_trace.cpp
@@ -155,7 +155,7 @@
}
#endif
-#if !defined(_WIN32)
+#if ADB_HOST && !defined(_WIN32)
// adb historically ignored $ANDROID_LOG_TAGS but passed it through to logcat.
// If set, move it out of the way so that libbase logging doesn't try to parse it.
std::string log_tags;
@@ -168,7 +168,7 @@
android::base::InitLogging(argv, &AdbLogger);
-#if !defined(_WIN32)
+#if ADB_HOST && !defined(_WIN32)
// Put $ANDROID_LOG_TAGS back so we can pass it to logcat.
if (!log_tags.empty()) setenv("ANDROID_LOG_TAGS", log_tags.c_str(), 1);
#endif
diff --git a/adb/adb_trace.h b/adb/adb_trace.h
index aaffa29..fc6560c 100644
--- a/adb/adb_trace.h
+++ b/adb/adb_trace.h
@@ -58,6 +58,9 @@
void adb_trace_init(char**);
void adb_trace_enable(AdbTrace trace_tag);
+// Include <atomic> before stdatomic.h (introduced in cutils/trace.h) to avoid compile error.
+#include <atomic>
+
#define ATRACE_TAG ATRACE_TAG_ADB
#include <cutils/trace.h>
#include <utils/Trace.h>
diff --git a/adb/client/usb_libusb.cpp b/adb/client/usb_libusb.cpp
index c48a251..fec4742 100644
--- a/adb/client/usb_libusb.cpp
+++ b/adb/client/usb_libusb.cpp
@@ -62,12 +62,11 @@
using unique_device_handle = std::unique_ptr<libusb_device_handle, DeviceHandleDeleter>;
struct transfer_info {
- transfer_info(const char* name, uint16_t zero_mask) :
- name(name),
- transfer(libusb_alloc_transfer(0)),
- zero_mask(zero_mask)
- {
- }
+ transfer_info(const char* name, uint16_t zero_mask, bool is_bulk_out)
+ : name(name),
+ transfer(libusb_alloc_transfer(0)),
+ is_bulk_out(is_bulk_out),
+ zero_mask(zero_mask) {}
~transfer_info() {
libusb_free_transfer(transfer);
@@ -75,6 +74,7 @@
const char* name;
libusb_transfer* transfer;
+ bool is_bulk_out;
bool transfer_complete;
std::condition_variable cv;
std::mutex mutex;
@@ -96,12 +96,11 @@
serial(serial),
closing(false),
device_handle(device_handle.release()),
- read("read", zero_mask),
- write("write", zero_mask),
+ read("read", zero_mask, false),
+ write("write", zero_mask, true),
interface(interface),
bulk_in(bulk_in),
- bulk_out(bulk_out) {
- }
+ bulk_out(bulk_out) {}
~usb_handle() {
Close();
@@ -365,11 +364,6 @@
device_poll_thread = new std::thread(poll_for_devices);
android::base::at_quick_exit([]() {
terminate_device_poll_thread = true;
- std::unique_lock<std::mutex> lock(usb_handles_mutex);
- for (auto& it : usb_handles) {
- it.second->Close();
- }
- lock.unlock();
device_poll_thread->join();
});
}
@@ -397,7 +391,8 @@
return;
}
- if (transfer->actual_length != transfer->length) {
+ // usb_read() can return when receiving some data.
+ if (info->is_bulk_out && transfer->actual_length != transfer->length) {
LOG(DEBUG) << info->name << " transfer incomplete, resubmitting";
transfer->length -= transfer->actual_length;
transfer->buffer += transfer->actual_length;
@@ -491,8 +486,12 @@
info->transfer->num_iso_packets = 0;
int rc = perform_usb_transfer(h, info, std::move(lock));
- LOG(DEBUG) << "usb_read(" << len << ") = " << rc;
- return rc;
+ LOG(DEBUG) << "usb_read(" << len << ") = " << rc << ", actual_length "
+ << info->transfer->actual_length;
+ if (rc < 0) {
+ return rc;
+ }
+ return info->transfer->actual_length;
}
int usb_close(usb_handle* h) {
diff --git a/adb/client/usb_linux.cpp b/adb/client/usb_linux.cpp
index 3a45dbd..6efed27 100644
--- a/adb/client/usb_linux.cpp
+++ b/adb/client/usb_linux.cpp
@@ -401,7 +401,6 @@
}
}
-
int usb_write(usb_handle *h, const void *_data, int len)
{
D("++ usb_write ++");
@@ -429,19 +428,16 @@
int n;
D("++ usb_read ++");
- while(len > 0) {
+ int orig_len = len;
+ while (len == orig_len) {
int xfer = len;
D("[ usb read %d fd = %d], path=%s", xfer, h->fd, h->path.c_str());
n = usb_bulk_read(h, data, xfer);
D("[ usb read %d ] = %d, path=%s", xfer, n, h->path.c_str());
- if(n != xfer) {
+ if (n <= 0) {
if((errno == ETIMEDOUT) && (h->fd != -1)) {
D("[ timeout ]");
- if(n > 0){
- data += n;
- len -= n;
- }
continue;
}
D("ERROR: n = %d, errno = %d (%s)",
@@ -449,12 +445,12 @@
return -1;
}
- len -= xfer;
- data += xfer;
+ len -= n;
+ data += n;
}
D("-- usb_read --");
- return 0;
+ return orig_len - len;
}
void usb_kick(usb_handle* h) {
diff --git a/adb/client/usb_osx.cpp b/adb/client/usb_osx.cpp
index 8713b2c..fcd0bc0 100644
--- a/adb/client/usb_osx.cpp
+++ b/adb/client/usb_osx.cpp
@@ -518,7 +518,7 @@
}
if (kIOReturnSuccess == result)
- return 0;
+ return numBytes;
else {
LOG(ERROR) << "usb_read failed with status: " << std::hex << result;
}
diff --git a/adb/client/usb_windows.cpp b/adb/client/usb_windows.cpp
index 9e00a5d..ee7f802 100644
--- a/adb/client/usb_windows.cpp
+++ b/adb/client/usb_windows.cpp
@@ -415,6 +415,7 @@
unsigned long time_out = 0;
unsigned long read = 0;
int err = 0;
+ int orig_len = len;
D("usb_read %d", len);
if (NULL == handle) {
@@ -423,9 +424,8 @@
goto fail;
}
- while (len > 0) {
- if (!AdbReadEndpointSync(handle->adb_read_pipe, data, len, &read,
- time_out)) {
+ while (len == orig_len) {
+ if (!AdbReadEndpointSync(handle->adb_read_pipe, data, len, &read, time_out)) {
D("AdbReadEndpointSync failed: %s",
android::base::SystemErrorCodeToString(GetLastError()).c_str());
err = EIO;
@@ -433,11 +433,11 @@
}
D("usb_read got: %ld, expected: %d", read, len);
- data = (char *)data + read;
+ data = (char*)data + read;
len -= read;
}
- return 0;
+ return orig_len - len;
fail:
// Any failure should cause us to kick the device instead of leaving it a
diff --git a/adb/commandline.cpp b/adb/commandline.cpp
index d626259..5f55ab9 100644
--- a/adb/commandline.cpp
+++ b/adb/commandline.cpp
@@ -212,6 +212,7 @@
" kill-server kill the server if it is running\n"
" reconnect kick connection from host side to force reconnect\n"
" reconnect device kick connection from device side to force reconnect\n"
+ " reconnect offline reset offline/unauthorized devices to force reconnect\n"
"\n"
"environment variables:\n"
" $ADB_TRACE\n"
@@ -1929,7 +1930,7 @@
return adb_query_command("host:host-features");
} else if (!strcmp(argv[0], "reconnect")) {
if (argc == 1) {
- return adb_query_command("host:reconnect");
+ return adb_query_command(format_host_command(argv[0], transport_type, serial));
} else if (argc == 2) {
if (!strcmp(argv[1], "device")) {
std::string err;
diff --git a/adb/fdevent.cpp b/adb/fdevent.cpp
index 04cd865..72c9eef 100644
--- a/adb/fdevent.cpp
+++ b/adb/fdevent.cpp
@@ -75,13 +75,13 @@
static bool main_thread_valid;
static unsigned long main_thread_id;
-static void check_main_thread() {
+void check_main_thread() {
if (main_thread_valid) {
CHECK_EQ(main_thread_id, adb_thread_id());
}
}
-static void set_main_thread() {
+void set_main_thread() {
main_thread_valid = true;
main_thread_id = adb_thread_id();
}
diff --git a/adb/fdevent.h b/adb/fdevent.h
index 207f9b7..e32845a 100644
--- a/adb/fdevent.h
+++ b/adb/fdevent.h
@@ -76,9 +76,12 @@
*/
void fdevent_loop();
+void check_main_thread();
+
// The following functions are used only for tests.
void fdevent_terminate_loop();
size_t fdevent_installed_count();
void fdevent_reset();
+void set_main_thread();
#endif
diff --git a/adb/services.cpp b/adb/services.cpp
index 4327044..9605e6e 100644
--- a/adb/services.cpp
+++ b/adb/services.cpp
@@ -347,7 +347,7 @@
std::string error = "unknown error";
const char* serial = sinfo->serial.length() ? sinfo->serial.c_str() : NULL;
atransport* t = acquire_one_transport(sinfo->transport_type, serial, &is_ambiguous, &error);
- if (t != nullptr && (sinfo->state == kCsAny || sinfo->state == t->connection_state)) {
+ if (t != nullptr && (sinfo->state == kCsAny || sinfo->state == t->GetConnectionState())) {
SendOkay(fd);
break;
} else if (!is_ambiguous) {
diff --git a/adb/sockets.cpp b/adb/sockets.cpp
index 59a48f5..14ad1ff 100644
--- a/adb/sockets.cpp
+++ b/adb/sockets.cpp
@@ -794,7 +794,7 @@
if (!s->transport) {
SendFail(s->peer->fd, "device offline (no transport)");
goto fail;
- } else if (s->transport->connection_state == kCsOffline) {
+ } else if (s->transport->GetConnectionState() == kCsOffline) {
/* if there's no remote we fail the connection
** right here and terminate it
*/
diff --git a/adb/test_device.py b/adb/test_device.py
index e76aaed..a30972e 100644
--- a/adb/test_device.py
+++ b/adb/test_device.py
@@ -1188,6 +1188,77 @@
self.device.shell(['rm', '-f', '/data/local/tmp/adb-test-*'])
+class DeviceOfflineTest(DeviceTest):
+ def _get_device_state(self, serialno):
+ output = subprocess.check_output(self.device.adb_cmd + ['devices'])
+ for line in output.split('\n'):
+ m = re.match('(\S+)\s+(\S+)', line)
+ if m and m.group(1) == serialno:
+ return m.group(2)
+ return None
+
+ def test_killed_when_pushing_a_large_file(self):
+ """
+ While running adb push with a large file, kill adb server.
+ Occasionally the device becomes offline. Because the device is still
+ reading data without realizing that the adb server has been restarted.
+ Test if we can bring the device online automatically now.
+ http://b/32952319
+ """
+ serialno = subprocess.check_output(self.device.adb_cmd + ['get-serialno']).strip()
+ # 1. Push a large file
+ file_path = 'tmp_large_file'
+ try:
+ fh = open(file_path, 'w')
+ fh.write('\0' * (100 * 1024 * 1024))
+ fh.close()
+ subproc = subprocess.Popen(self.device.adb_cmd + ['push', file_path, '/data/local/tmp'])
+ time.sleep(0.1)
+ # 2. Kill the adb server
+ subprocess.check_call(self.device.adb_cmd + ['kill-server'])
+ subproc.terminate()
+ finally:
+ try:
+ os.unlink(file_path)
+ except:
+ pass
+ # 3. See if the device still exist.
+ # Sleep to wait for the adb server exit.
+ time.sleep(0.5)
+ # 4. The device should be online
+ self.assertEqual(self._get_device_state(serialno), 'device')
+
+ def test_killed_when_pulling_a_large_file(self):
+ """
+ While running adb pull with a large file, kill adb server.
+ Occasionally the device can't be connected. Because the device is trying to
+ send a message larger than what is expected by the adb server.
+ Test if we can bring the device online automatically now.
+ """
+ serialno = subprocess.check_output(self.device.adb_cmd + ['get-serialno']).strip()
+ file_path = 'tmp_large_file'
+ try:
+ # 1. Create a large file on device.
+ self.device.shell(['dd', 'if=/dev/zero', 'of=/data/local/tmp/tmp_large_file',
+ 'bs=1000000', 'count=100'])
+ # 2. Pull the large file on host.
+ subproc = subprocess.Popen(self.device.adb_cmd +
+ ['pull','/data/local/tmp/tmp_large_file', file_path])
+ time.sleep(0.1)
+ # 3. Kill the adb server
+ subprocess.check_call(self.device.adb_cmd + ['kill-server'])
+ subproc.terminate()
+ finally:
+ try:
+ os.unlink(file_path)
+ except:
+ pass
+ # 4. See if the device still exist.
+ # Sleep to wait for the adb server exit.
+ time.sleep(0.5)
+ self.assertEqual(self._get_device_state(serialno), 'device')
+
+
def main():
random.seed(0)
if len(adb.get_devices()) > 0:
diff --git a/adb/transport.cpp b/adb/transport.cpp
index 4686841..cc8c162 100644
--- a/adb/transport.cpp
+++ b/adb/transport.cpp
@@ -33,6 +33,7 @@
#include <android-base/logging.h>
#include <android-base/parsenetaddress.h>
+#include <android-base/quick_exit.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
@@ -41,6 +42,7 @@
#include "adb_trace.h"
#include "adb_utils.h"
#include "diagnose_usb.h"
+#include "fdevent.h"
static void transport_unref(atransport *t);
@@ -209,6 +211,11 @@
put_apacket(p);
break;
}
+#if ADB_HOST
+ if (p->msg.command == 0) {
+ continue;
+ }
+#endif
}
D("%s: received remote packet, sending to transport", t->serial);
@@ -271,7 +278,11 @@
if (active) {
D("%s: transport got packet, sending to remote", t->serial);
ATRACE_NAME("write_transport write_remote");
- t->write_to_remote(p, t);
+ if (t->Write(p) != 0) {
+ D("%s: remote write failed for transport", t->serial);
+ put_apacket(p);
+ break;
+ }
} else {
D("%s: transport ignoring packet while offline", t->serial);
}
@@ -493,7 +504,7 @@
}
/* don't create transport threads for inaccessible devices */
- if (t->connection_state != kCsNoPerm) {
+ if (t->GetConnectionState() != kCsNoPerm) {
/* initial references are the two threads */
t->ref_count = 2;
@@ -538,6 +549,15 @@
transport_registration_func, 0);
fdevent_set(&transport_registration_fde, FDE_READ);
+#if ADB_HOST
+ android::base::at_quick_exit([]() {
+ // To avoid only writing part of a packet to a transport after exit, kick all transports.
+ std::lock_guard<std::mutex> lock(transport_lock);
+ for (auto t : transport_list) {
+ t->Kick();
+ }
+ });
+#endif
}
/* the fdevent select pump is single threaded */
@@ -600,7 +620,7 @@
}
atransport* acquire_one_transport(TransportType type, const char* serial, bool* is_ambiguous,
- std::string* error_out) {
+ std::string* error_out, bool accept_any_state) {
atransport* result = nullptr;
if (serial) {
@@ -615,7 +635,7 @@
std::unique_lock<std::mutex> lock(transport_lock);
for (const auto& t : transport_list) {
- if (t->connection_state == kCsNoPerm) {
+ if (t->GetConnectionState() == kCsNoPerm) {
#if ADB_HOST
*error_out = UsbNoPermissionsLongHelpText();
#endif
@@ -664,7 +684,7 @@
lock.unlock();
// Don't return unauthorized devices; the caller can't do anything with them.
- if (result && result->connection_state == kCsUnauthorized) {
+ if (result && result->GetConnectionState() == kCsUnauthorized && !accept_any_state) {
*error_out = "device unauthorized.\n";
char* ADB_VENDOR_KEYS = getenv("ADB_VENDOR_KEYS");
*error_out += "This adb server's $ADB_VENDOR_KEYS is ";
@@ -676,7 +696,7 @@
}
// Don't return offline devices; the caller can't do anything with them.
- if (result && result->connection_state == kCsOffline) {
+ if (result && result->GetConnectionState() == kCsOffline && !accept_any_state) {
*error_out = "device offline";
result = nullptr;
}
@@ -688,16 +708,38 @@
return result;
}
+int atransport::Write(apacket* p) {
+#if ADB_HOST
+ std::lock_guard<std::mutex> lock(write_msg_lock_);
+#endif
+ return write_func_(p, this);
+}
+
void atransport::Kick() {
if (!kicked_) {
kicked_ = true;
CHECK(kick_func_ != nullptr);
+#if ADB_HOST
+ // On host, adb server should avoid writing part of a packet, so don't
+ // kick a transport whiling writing a packet.
+ std::lock_guard<std::mutex> lock(write_msg_lock_);
+#endif
kick_func_(this);
}
}
+ConnectionState atransport::GetConnectionState() const {
+ return connection_state_;
+}
+
+void atransport::SetConnectionState(ConnectionState state) {
+ check_main_thread();
+ connection_state_ = state;
+}
+
const std::string atransport::connection_state_name() const {
- switch (connection_state) {
+ ConnectionState state = GetConnectionState();
+ switch (state) {
case kCsOffline:
return "offline";
case kCsBootloader:
@@ -963,10 +1005,10 @@
void register_usb_transport(usb_handle* usb, const char* serial, const char* devpath,
unsigned writeable) {
- atransport* t = new atransport();
+ atransport* t = new atransport((writeable ? kCsOffline : kCsNoPerm));
D("transport: %p init'ing for usb_handle %p (sn='%s')", t, usb, serial ? serial : "");
- init_usb_transport(t, usb, (writeable ? kCsOffline : kCsNoPerm));
+ init_usb_transport(t, usb);
if (serial) {
t->serial = strdup(serial);
}
@@ -987,12 +1029,13 @@
void unregister_usb_transport(usb_handle* usb) {
std::lock_guard<std::mutex> lock(transport_lock);
transport_list.remove_if(
- [usb](atransport* t) { return t->usb == usb && t->connection_state == kCsNoPerm; });
+ [usb](atransport* t) { return t->usb == usb && t->GetConnectionState() == kCsNoPerm; });
}
int check_header(apacket* p, atransport* t) {
if (p->msg.magic != (p->msg.command ^ 0xffffffff)) {
- VLOG(RWX) << "check_header(): invalid magic";
+ VLOG(RWX) << "check_header(): invalid magic command = " << std::hex << p->msg.command
+ << ", magic = " << p->msg.magic;
return -1;
}
@@ -1020,4 +1063,11 @@
keys_.pop_front();
return result;
}
+bool atransport::SetSendConnectOnError() {
+ if (has_send_connect_on_error_) {
+ return false;
+ }
+ has_send_connect_on_error_ = true;
+ return true;
+}
#endif
diff --git a/adb/transport.h b/adb/transport.h
index 4d97fc7..8c15d66 100644
--- a/adb/transport.h
+++ b/adb/transport.h
@@ -19,10 +19,12 @@
#include <sys/types.h>
+#include <atomic>
#include <deque>
#include <functional>
#include <list>
#include <memory>
+#include <mutex>
#include <string>
#include <unordered_set>
@@ -57,31 +59,35 @@
// class in one go is a very large change. Given how bad our testing is,
// it's better to do this piece by piece.
- atransport() {
+ atransport(ConnectionState state = kCsOffline) : connection_state_(state) {
transport_fde = {};
protocol_version = A_VERSION;
max_payload = MAX_PAYLOAD;
}
-
virtual ~atransport() {}
int (*read_from_remote)(apacket* p, atransport* t) = nullptr;
- int (*write_to_remote)(apacket* p, atransport* t) = nullptr;
void (*close)(atransport* t) = nullptr;
+
+ void SetWriteFunction(int (*write_func)(apacket*, atransport*)) { write_func_ = write_func; }
void SetKickFunction(void (*kick_func)(atransport*)) {
kick_func_ = kick_func;
}
bool IsKicked() {
return kicked_;
}
+ int Write(apacket* p);
void Kick();
+ // ConnectionState can be read by all threads, but can only be written in the main thread.
+ ConnectionState GetConnectionState() const;
+ void SetConnectionState(ConnectionState state);
+
int fd = -1;
int transport_socket = -1;
fdevent transport_fde;
size_t ref_count = 0;
uint32_t sync_token = 0;
- ConnectionState connection_state = kCsOffline;
bool online = false;
TransportType type = kTransportAny;
@@ -114,11 +120,13 @@
#if ADB_HOST
std::shared_ptr<RSA> NextKey();
+ bool SetSendConnectOnError();
#endif
char token[TOKEN_SIZE] = {};
size_t failed_auth_attempts = 0;
+ const std::string serial_name() const { return serial ? serial : "<unknown>"; }
const std::string connection_state_name() const;
void update_version(int version, size_t payload);
@@ -157,6 +165,7 @@
int local_port_for_emulator_ = -1;
bool kicked_ = false;
void (*kick_func_)(atransport*) = nullptr;
+ int (*write_func_)(apacket*, atransport*) = nullptr;
// A set of features transmitted in the banner with the initial connection.
// This is stored in the banner as 'features=feature0,feature1,etc'.
@@ -167,8 +176,11 @@
// A list of adisconnect callbacks called when the transport is kicked.
std::list<adisconnect*> disconnects_;
+ std::atomic<ConnectionState> connection_state_;
#if ADB_HOST
std::deque<std::shared_ptr<RSA>> keys_;
+ std::mutex write_msg_lock_;
+ bool has_send_connect_on_error_ = false;
#endif
DISALLOW_COPY_AND_ASSIGN(atransport);
@@ -181,8 +193,8 @@
* is set to true and nullptr returned.
* If no suitable transport is found, error is set and nullptr returned.
*/
-atransport* acquire_one_transport(TransportType type, const char* serial,
- bool* is_ambiguous, std::string* error_out);
+atransport* acquire_one_transport(TransportType type, const char* serial, bool* is_ambiguous,
+ std::string* error_out, bool accept_any_state = false);
void kick_transport(atransport* t);
void update_transports(void);
diff --git a/adb/transport_local.cpp b/adb/transport_local.cpp
index 408f51f..3ee286a 100644
--- a/adb/transport_local.cpp
+++ b/adb/transport_local.cpp
@@ -515,12 +515,11 @@
int fail = 0;
t->SetKickFunction(remote_kick);
+ t->SetWriteFunction(remote_write);
t->close = remote_close;
t->read_from_remote = remote_read;
- t->write_to_remote = remote_write;
t->sfd = s;
t->sync_token = 1;
- t->connection_state = kCsOffline;
t->type = kTransportLocal;
#if ADB_HOST
diff --git a/adb/transport_test.cpp b/adb/transport_test.cpp
index 8b38e03..68689d4 100644
--- a/adb/transport_test.cpp
+++ b/adb/transport_test.cpp
@@ -94,12 +94,13 @@
}
TEST(transport, parse_banner_no_features) {
+ set_main_thread();
atransport t;
parse_banner("host::", &t);
ASSERT_EQ(0U, t.features().size());
- ASSERT_EQ(kCsHost, t.connection_state);
+ ASSERT_EQ(kCsHost, t.GetConnectionState());
ASSERT_EQ(nullptr, t.product);
ASSERT_EQ(nullptr, t.model);
@@ -113,7 +114,7 @@
"host::ro.product.name=foo;ro.product.model=bar;ro.product.device=baz;";
parse_banner(banner, &t);
- ASSERT_EQ(kCsHost, t.connection_state);
+ ASSERT_EQ(kCsHost, t.GetConnectionState());
ASSERT_EQ(0U, t.features().size());
@@ -130,7 +131,7 @@
"features=woodly,doodly";
parse_banner(banner, &t);
- ASSERT_EQ(kCsHost, t.connection_state);
+ ASSERT_EQ(kCsHost, t.GetConnectionState());
ASSERT_EQ(2U, t.features().size());
ASSERT_TRUE(t.has_feature("woodly"));
diff --git a/adb/transport_usb.cpp b/adb/transport_usb.cpp
index 516b4f2..ce419b8 100644
--- a/adb/transport_usb.cpp
+++ b/adb/transport_usb.cpp
@@ -25,9 +25,115 @@
#include "adb.h"
+#if ADB_HOST
+
+static constexpr size_t MAX_USB_BULK_PACKET_SIZE = 1024u;
+
+// Call usb_read using a buffer having a multiple of MAX_USB_BULK_PACKET_SIZE bytes
+// to avoid overflow. See http://libusb.sourceforge.net/api-1.0/packetoverflow.html.
+static int UsbReadMessage(usb_handle* h, amessage* msg) {
+ D("UsbReadMessage");
+ char buffer[MAX_USB_BULK_PACKET_SIZE];
+ int n = usb_read(h, buffer, sizeof(buffer));
+ if (n == sizeof(*msg)) {
+ memcpy(msg, buffer, sizeof(*msg));
+ }
+ return n;
+}
+
+// Call usb_read using a buffer having a multiple of MAX_USB_BULK_PACKET_SIZE bytes
+// to avoid overflow. See http://libusb.sourceforge.net/api-1.0/packetoverflow.html.
+static int UsbReadPayload(usb_handle* h, apacket* p) {
+ D("UsbReadPayload");
+ size_t need_size = p->msg.data_length;
+ size_t data_pos = 0u;
+ while (need_size > 0u) {
+ int n = 0;
+ if (data_pos + MAX_USB_BULK_PACKET_SIZE <= sizeof(p->data)) {
+ // Read directly to p->data.
+ size_t rem_size = need_size % MAX_USB_BULK_PACKET_SIZE;
+ size_t direct_read_size = need_size - rem_size;
+ if (rem_size &&
+ data_pos + direct_read_size + MAX_USB_BULK_PACKET_SIZE <= sizeof(p->data)) {
+ direct_read_size += MAX_USB_BULK_PACKET_SIZE;
+ }
+ n = usb_read(h, &p->data[data_pos], direct_read_size);
+ if (n < 0) {
+ D("usb_read(size %zu) failed", direct_read_size);
+ return n;
+ }
+ } else {
+ // Read indirectly using a buffer.
+ char buffer[MAX_USB_BULK_PACKET_SIZE];
+ n = usb_read(h, buffer, sizeof(buffer));
+ if (n < 0) {
+ D("usb_read(size %zu) failed", sizeof(buffer));
+ return -1;
+ }
+ size_t copy_size = std::min(static_cast<size_t>(n), need_size);
+ D("usb read %d bytes, need %zu bytes, copy %zu bytes", n, need_size, copy_size);
+ memcpy(&p->data[data_pos], buffer, copy_size);
+ }
+ data_pos += n;
+ need_size -= std::min(static_cast<size_t>(n), need_size);
+ }
+ return static_cast<int>(data_pos);
+}
+
+static int remote_read(apacket* p, atransport* t) {
+ int n = UsbReadMessage(t->usb, &p->msg);
+ if (n < 0) {
+ D("remote usb: read terminated (message)");
+ return -1;
+ }
+ if (static_cast<size_t>(n) != sizeof(p->msg) || check_header(p, t)) {
+ D("remote usb: check_header failed, skip it");
+ goto err_msg;
+ }
+ if (t->GetConnectionState() == kCsOffline) {
+ // If we read a wrong msg header declaring a large message payload, don't read its payload.
+ // Otherwise we may miss true messages from the device.
+ if (p->msg.command != A_CNXN && p->msg.command != A_AUTH) {
+ goto err_msg;
+ }
+ }
+ if (p->msg.data_length) {
+ n = UsbReadPayload(t->usb, p);
+ if (n < 0) {
+ D("remote usb: terminated (data)");
+ return -1;
+ }
+ if (static_cast<uint32_t>(n) != p->msg.data_length) {
+ D("remote usb: read payload failed (need %u bytes, give %d bytes), skip it",
+ p->msg.data_length, n);
+ goto err_msg;
+ }
+ }
+ if (check_data(p)) {
+ D("remote usb: check_data failed, skip it");
+ goto err_msg;
+ }
+ return 0;
+
+err_msg:
+ p->msg.command = 0;
+ if (t->GetConnectionState() == kCsOffline) {
+ // If the data toggle of ep_out on device and ep_in on host are not the same, we may receive
+ // an error message. In this case, resend one A_CNXN message to connect the device.
+ if (t->SetSendConnectOnError()) {
+ SendConnectOnHost(t);
+ }
+ }
+ return 0;
+}
+
+#else
+
+// On Android devices, we rely on the kernel to provide buffered read.
+// So we can recover automatically from EOVERFLOW.
static int remote_read(apacket *p, atransport *t)
{
- if(usb_read(t->usb, &p->msg, sizeof(amessage))){
+ if (usb_read(t->usb, &p->msg, sizeof(amessage))) {
D("remote usb: read terminated (message)");
return -1;
}
@@ -38,7 +144,7 @@
}
if(p->msg.data_length) {
- if(usb_read(t->usb, p->data, p->msg.data_length)){
+ if (usb_read(t->usb, p->data, p->msg.data_length)) {
D("remote usb: terminated (data)");
return -1;
}
@@ -51,17 +157,18 @@
return 0;
}
+#endif
static int remote_write(apacket *p, atransport *t)
{
unsigned size = p->msg.data_length;
- if(usb_write(t->usb, &p->msg, sizeof(amessage))) {
+ if (usb_write(t->usb, &p->msg, sizeof(amessage))) {
D("remote usb: 1 - write terminated");
return -1;
}
if(p->msg.data_length == 0) return 0;
- if(usb_write(t->usb, &p->data, size)) {
+ if (usb_write(t->usb, &p->data, size)) {
D("remote usb: 2 - write terminated");
return -1;
}
@@ -75,20 +182,17 @@
t->usb = 0;
}
-static void remote_kick(atransport *t)
-{
+static void remote_kick(atransport* t) {
usb_kick(t->usb);
}
-void init_usb_transport(atransport *t, usb_handle *h, ConnectionState state)
-{
+void init_usb_transport(atransport* t, usb_handle* h) {
D("transport: usb");
t->close = remote_close;
t->SetKickFunction(remote_kick);
+ t->SetWriteFunction(remote_write);
t->read_from_remote = remote_read;
- t->write_to_remote = remote_write;
t->sync_token = 1;
- t->connection_state = state;
t->type = kTransportUsb;
t->usb = h;
}
diff --git a/base/Android.bp b/base/Android.bp
index afb7dd3..81b96db 100644
--- a/base/Android.bp
+++ b/base/Android.bp
@@ -26,9 +26,6 @@
host_supported: true,
export_include_dirs: ["include"],
- header_libs: ["libutils_headers"],
- export_header_lib_headers: ["libutils_headers"],
-
target: {
linux_bionic: {
enabled: true,
@@ -54,7 +51,10 @@
"test_utils.cpp",
],
- header_libs: ["libbase_headers"],
+ header_libs: [
+ "libbase_headers",
+ "libutils_headers",
+ ],
export_header_lib_headers: ["libbase_headers"],
cppflags: libbase_cppflags,
diff --git a/fs_mgr/fs_mgr_boot_config.cpp b/fs_mgr/fs_mgr_boot_config.cpp
index cffa6ce..ab5beed 100644
--- a/fs_mgr/fs_mgr_boot_config.cpp
+++ b/fs_mgr/fs_mgr_boot_config.cpp
@@ -55,8 +55,6 @@
if (android::base::ReadFileToString(file_name, out_val)) {
return true;
}
-
- LINFO << "Error finding '" << key << "' in device tree";
}
return false;
diff --git a/init/service.cpp b/init/service.cpp
index caf5785..c0745e3 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -217,7 +217,7 @@
r = killProcessGroup(uid_, pid_, signal);
}
if (r == -1) {
- PLOG(ERROR) << "killProcessGroup(" << uid_ << ", " << pid_ << ", " << signal << ") failed";
+ LOG(ERROR) << "killProcessGroup(" << uid_ << ", " << pid_ << ", " << signal << ") failed";
}
if (kill(-pid_, signal) == -1) {
PLOG(ERROR) << "kill(" << pid_ << ", " << signal << ") failed";
diff --git a/liblog/tests/liblog_test.cpp b/liblog/tests/liblog_test.cpp
index 70b8a28..ec32da0 100644
--- a/liblog/tests/liblog_test.cpp
+++ b/liblog/tests/liblog_test.cpp
@@ -1839,6 +1839,7 @@
// that it can be determined the property is not set.
static const char nothing_val[] = "_NOTHING_TO_SEE_HERE_";
char persist[PROP_VALUE_MAX];
+ char persist_hold[PROP_VALUE_MAX];
char readonly[PROP_VALUE_MAX];
// First part of this test requires the test itself to have the appropriate
@@ -1846,14 +1847,16 @@
// bail rather than give a failing grade.
property_get(persist_key, persist, "");
fprintf(stderr, "INFO: getprop %s -> %s\n", persist_key, persist);
+ strncpy(persist_hold, persist, PROP_VALUE_MAX);
property_get(readonly_key, readonly, nothing_val);
fprintf(stderr, "INFO: getprop %s -> %s\n", readonly_key, readonly);
if (!strcmp(readonly, nothing_val)) {
+ // Lets check if we can set the value (we should not be allowed to do so)
EXPECT_FALSE(__android_log_security());
fprintf(stderr, "WARNING: setting ro.device_owner to a domain\n");
static const char domain[] = "com.google.android.SecOps.DeviceOwner";
- property_set(readonly_key, domain);
+ EXPECT_NE(0, property_set(readonly_key, domain));
useconds_t total_time = 0;
static const useconds_t seconds = 1000000;
static const useconds_t max_time = 5 * seconds; // not going to happen
@@ -1870,9 +1873,12 @@
break;
}
}
- EXPECT_STREQ(readonly, domain);
- } else if (!strcasecmp(readonly, "false") || !readonly[0]) {
- // not enough permissions to run
+ EXPECT_STRNE(domain, readonly);
+ }
+
+ if (!strcasecmp(readonly, "false") || !readonly[0] ||
+ !strcmp(readonly, nothing_val)) {
+ // not enough permissions to run tests surrounding persist.logd.security
EXPECT_FALSE(__android_log_security());
return;
}
@@ -1883,16 +1889,51 @@
EXPECT_FALSE(__android_log_security());
}
property_set(persist_key, "TRUE");
- EXPECT_TRUE(__android_log_security());
+ property_get(persist_key, persist, "");
+ uid_t uid = getuid();
+ gid_t gid = getgid();
+ bool perm = (gid == AID_ROOT) || (uid == AID_ROOT);
+ EXPECT_STREQ(perm ? "TRUE" : persist_hold, persist);
+ if (!strcasecmp(persist, "true")) {
+ EXPECT_TRUE(__android_log_security());
+ } else {
+ EXPECT_FALSE(__android_log_security());
+ }
property_set(persist_key, "FALSE");
- EXPECT_FALSE(__android_log_security());
+ property_get(persist_key, persist, "");
+ EXPECT_STREQ(perm ? "FALSE" : persist_hold, persist);
+ if (!strcasecmp(persist, "true")) {
+ EXPECT_TRUE(__android_log_security());
+ } else {
+ EXPECT_FALSE(__android_log_security());
+ }
property_set(persist_key, "true");
- EXPECT_TRUE(__android_log_security());
+ property_get(persist_key, persist, "");
+ EXPECT_STREQ(perm ? "true" : persist_hold, persist);
+ if (!strcasecmp(persist, "true")) {
+ EXPECT_TRUE(__android_log_security());
+ } else {
+ EXPECT_FALSE(__android_log_security());
+ }
property_set(persist_key, "false");
- EXPECT_FALSE(__android_log_security());
+ property_get(persist_key, persist, "");
+ EXPECT_STREQ(perm ? "false" : persist_hold, persist);
+ if (!strcasecmp(persist, "true")) {
+ EXPECT_TRUE(__android_log_security());
+ } else {
+ EXPECT_FALSE(__android_log_security());
+ }
property_set(persist_key, "");
- EXPECT_FALSE(__android_log_security());
- property_set(persist_key, persist);
+ property_get(persist_key, persist, "");
+ EXPECT_STREQ(perm ? "" : persist_hold, persist);
+ if (!strcasecmp(persist, "true")) {
+ EXPECT_TRUE(__android_log_security());
+ } else {
+ EXPECT_FALSE(__android_log_security());
+ }
+ property_set(persist_key, persist_hold);
+ property_get(persist_key, persist, "");
+ EXPECT_STREQ(persist_hold, persist);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
diff --git a/libnetutils/Android.bp b/libnetutils/Android.bp
new file mode 100644
index 0000000..f710ba2
--- /dev/null
+++ b/libnetutils/Android.bp
@@ -0,0 +1,19 @@
+cc_library_shared {
+ name: "libnetutils",
+
+ srcs: [
+ "dhcpclient.c",
+ "dhcpmsg.c",
+ "ifc_utils.c",
+ "packet.c",
+ ],
+
+ shared_libs: [
+ "libcutils",
+ "liblog",
+ ],
+
+ cflags: ["-Werror"],
+
+ export_include_dirs: ["include"],
+}
diff --git a/libnetutils/Android.mk b/libnetutils/Android.mk
deleted file mode 100644
index 2150279..0000000
--- a/libnetutils/Android.mk
+++ /dev/null
@@ -1,21 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
- dhcpclient.c \
- dhcpmsg.c \
- ifc_utils.c \
- packet.c
-
-LOCAL_SHARED_LIBRARIES := \
- libcutils \
- liblog
-
-LOCAL_MODULE := libnetutils
-
-LOCAL_CFLAGS := -Werror
-
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-
-include $(BUILD_SHARED_LIBRARY)
diff --git a/libusbhost/Android.bp b/libusbhost/Android.bp
new file mode 100644
index 0000000..a0d6b9b
--- /dev/null
+++ b/libusbhost/Android.bp
@@ -0,0 +1,35 @@
+//
+// Copyright (C) 2010 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.
+//
+
+cc_library {
+ name: "libusbhost",
+ host_supported: true,
+ srcs: ["usbhost.c"],
+ cflags: ["-Werror"],
+ export_include_dirs: ["include"],
+ target: {
+ android: {
+ cflags: [
+ "-g",
+ "-DUSE_LIBLOG",
+ ],
+ shared_libs: ["liblog"],
+ },
+ darwin: {
+ enabled: false,
+ },
+ },
+}
diff --git a/libusbhost/Android.mk b/libusbhost/Android.mk
deleted file mode 100644
index 9439846..0000000
--- a/libusbhost/Android.mk
+++ /dev/null
@@ -1,56 +0,0 @@
-#
-# Copyright (C) 2010 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.
-#
-
-LOCAL_PATH := $(call my-dir)
-
-# Static library for Linux host
-# ========================================================
-
-ifeq ($(HOST_OS),linux)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libusbhost
-LOCAL_SRC_FILES := usbhost.c
-LOCAL_CFLAGS := -Werror
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-endif
-
-# Shared library for target
-# ========================================================
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libusbhost
-LOCAL_SRC_FILES := usbhost.c
-LOCAL_CFLAGS := -g -DUSE_LIBLOG -Werror
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-# needed for logcat
-LOCAL_SHARED_LIBRARIES := libcutils
-include $(BUILD_SHARED_LIBRARY)
-
-# Static library for target
-# ========================================================
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libusbhost
-LOCAL_SRC_FILES := usbhost.c
-LOCAL_CFLAGS := -Werror
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-include $(BUILD_STATIC_LIBRARY)
diff --git a/libusbhost/usbhost.c b/libusbhost/usbhost.c
index 68aca17..050fc2f 100644
--- a/libusbhost/usbhost.c
+++ b/libusbhost/usbhost.c
@@ -19,7 +19,7 @@
#ifdef USE_LIBLOG
#define LOG_TAG "usbhost"
-#include "utils/Log.h"
+#include "log/log.h"
#define D ALOGD
#else
#define D printf
diff --git a/logcat/tests/logcat_test.cpp b/logcat/tests/logcat_test.cpp
index e487a97..9c07472 100644
--- a/logcat/tests/logcat_test.cpp
+++ b/logcat/tests/logcat_test.cpp
@@ -1216,7 +1216,12 @@
signal(SIGALRM, caught_blocking_clear);
alarm(2);
while (fgets(buffer, sizeof(buffer), fp)) {
- if (!strncmp(buffer, "clearLog: ", 10)) {
+ if (!strncmp(buffer, "clearLog: ", strlen("clearLog: "))) {
+ fprintf(stderr, "WARNING: Test lacks permission to run :-(\n");
+ count = signals = 1;
+ break;
+ }
+ if (!strncmp(buffer, "failed to clear", strlen("failed to clear"))) {
fprintf(stderr, "WARNING: Test lacks permission to run :-(\n");
count = signals = 1;
break;
diff --git a/logd/FlushCommand.cpp b/logd/FlushCommand.cpp
index c67d2bf..a9edc3e 100644
--- a/logd/FlushCommand.cpp
+++ b/logd/FlushCommand.cpp
@@ -44,14 +44,14 @@
// LogTimeEntrys, and spawn a transitory per-client thread to
// work at filing data to the socket.
//
-// global LogTimeEntry::lock() is used to protect access,
+// global LogTimeEntry::wrlock() is used to protect access,
// reference counts are used to ensure that individual
// LogTimeEntry lifetime is managed when not protected.
void FlushCommand::runSocketCommand(SocketClient* client) {
LogTimeEntry* entry = NULL;
LastLogTimes& times = mReader.logbuf().mTimes;
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
LastLogTimes::iterator it = times.begin();
while (it != times.end()) {
entry = (*it);
diff --git a/logd/LogAudit.cpp b/logd/LogAudit.cpp
index 2d9024a..ee38d1c 100644
--- a/logd/LogAudit.cpp
+++ b/logd/LogAudit.cpp
@@ -277,7 +277,7 @@
++cp;
}
tid = pid;
- logbuf->lock();
+ logbuf->wrlock();
uid = logbuf->pidToUid(pid);
logbuf->unlock();
memmove(pidptr, cp, strlen(cp) + 1);
@@ -322,7 +322,7 @@
pid = tid;
comm = "auditd";
} else {
- logbuf->lock();
+ logbuf->wrlock();
comm = commfree = logbuf->pidToName(pid);
logbuf->unlock();
if (!comm) {
diff --git a/logd/LogBuffer.cpp b/logd/LogBuffer.cpp
index ed46181..d9ec081 100644
--- a/logd/LogBuffer.cpp
+++ b/logd/LogBuffer.cpp
@@ -72,7 +72,7 @@
// as the act of mounting /data would trigger persist.logd.timestamp to
// be corrected. 1/30 corner case YMMV.
//
- pthread_mutex_lock(&mLogElementsLock);
+ rdlock();
LogBufferElementCollection::iterator it = mLogElements.begin();
while ((it != mLogElements.end())) {
LogBufferElement* e = *it;
@@ -87,7 +87,7 @@
}
++it;
}
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
}
// We may have been triggered by a SIGHUP. Release any sleeping reader
@@ -95,7 +95,7 @@
//
// NB: this is _not_ performed in the context of a SIGHUP, it is
// performed during startup, and in context of reinit administrative thread
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
LastLogTimes::iterator times = mTimes.begin();
while (times != mTimes.end()) {
@@ -111,7 +111,7 @@
LogBuffer::LogBuffer(LastLogTimes* times)
: monotonic(android_log_clockid() == CLOCK_MONOTONIC), mTimes(*times) {
- pthread_mutex_init(&mLogElementsLock, nullptr);
+ pthread_rwlock_init(&mLogElementsLock, nullptr);
log_id_for_each(i) {
lastLoggedElements[i] = nullptr;
@@ -207,15 +207,15 @@
}
if (!__android_log_is_loggable(prio, tag, ANDROID_LOG_VERBOSE)) {
// Log traffic received to total
- pthread_mutex_lock(&mLogElementsLock);
+ wrlock();
stats.addTotal(elem);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
delete elem;
return -EACCES;
}
}
- pthread_mutex_lock(&mLogElementsLock);
+ wrlock();
LogBufferElement* currentLast = lastLoggedElements[log_id];
if (currentLast) {
LogBufferElement* dropped = droppedElements[log_id];
@@ -316,14 +316,14 @@
// check for overflow
if (total >= UINT32_MAX) {
log(currentLast);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return len;
}
stats.addTotal(currentLast);
delete currentLast;
swab = total;
event->payload.data = htole32(swab);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return len;
}
if (count == USHRT_MAX) {
@@ -340,7 +340,7 @@
}
droppedElements[log_id] = currentLast;
lastLoggedElements[log_id] = elem;
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return len;
}
if (dropped) { // State 1 or 2
@@ -358,12 +358,12 @@
lastLoggedElements[log_id] = new LogBufferElement(*elem);
log(elem);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return len;
}
-// assumes mLogElementsLock held, owns elem, will look after garbage collection
+// assumes LogBuffer::wrlock() held, owns elem, look after garbage collection
void LogBuffer::log(LogBufferElement* elem) {
// cap on how far back we will sort in-place, otherwise append
static uint32_t too_far_back = 5; // five seconds
@@ -384,7 +384,7 @@
bool end_set = false;
bool end_always = false;
- LogTimeEntry::lock();
+ LogTimeEntry::rdlock();
LastLogTimes::iterator times = mTimes.begin();
while (times != mTimes.end()) {
@@ -426,7 +426,7 @@
// Prune at most 10% of the log entries or maxPrune, whichever is less.
//
-// mLogElementsLock must be held when this function is called.
+// LogBuffer::wrlock() must be held when this function is called.
void LogBuffer::maybePrune(log_id_t id) {
size_t sizes = stats.sizes(id);
unsigned long maxSize = log_buffer_size(id);
@@ -650,14 +650,14 @@
// The third thread is optional, and only gets hit if there was a whitelist
// and more needs to be pruned against the backstop of the region lock.
//
-// mLogElementsLock must be held when this function is called.
+// LogBuffer::wrlock() must be held when this function is called.
//
bool LogBuffer::prune(log_id_t id, unsigned long pruneRows, uid_t caller_uid) {
LogTimeEntry* oldest = nullptr;
bool busy = false;
bool clearAll = pruneRows == ULONG_MAX;
- LogTimeEntry::lock();
+ LogTimeEntry::rdlock();
// Region locked?
LastLogTimes::iterator times = mTimes.begin();
@@ -1017,15 +1017,15 @@
// one entry, not another clear run, so we are looking for
// the quick side effect of the return value to tell us if
// we have a _blocked_ reader.
- pthread_mutex_lock(&mLogElementsLock);
+ wrlock();
busy = prune(id, 1, uid);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
// It is still busy, blocked reader(s), lets kill them all!
// otherwise, lets be a good citizen and preserve the slow
// readers and let the clear run (below) deal with determining
// if we are still blocked and return an error code to caller.
if (busy) {
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
LastLogTimes::iterator times = mTimes.begin();
while (times != mTimes.end()) {
LogTimeEntry* entry = (*times);
@@ -1038,9 +1038,9 @@
LogTimeEntry::unlock();
}
}
- pthread_mutex_lock(&mLogElementsLock);
+ wrlock();
busy = prune(id, ULONG_MAX, uid);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
if (!busy || !--retry) {
break;
}
@@ -1051,9 +1051,9 @@
// get the used space associated with "id".
unsigned long LogBuffer::getSizeUsed(log_id_t id) {
- pthread_mutex_lock(&mLogElementsLock);
+ rdlock();
size_t retval = stats.sizes(id);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return retval;
}
@@ -1063,17 +1063,17 @@
if (!__android_logger_valid_buffer_size(size)) {
return -1;
}
- pthread_mutex_lock(&mLogElementsLock);
+ wrlock();
log_buffer_size(id) = size;
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return 0;
}
// get the total space allocated to "id"
unsigned long LogBuffer::getSize(log_id_t id) {
- pthread_mutex_lock(&mLogElementsLock);
+ rdlock();
size_t retval = log_buffer_size(id);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return retval;
}
@@ -1085,7 +1085,7 @@
LogBufferElementCollection::iterator it;
uid_t uid = reader->getUid();
- pthread_mutex_lock(&mLogElementsLock);
+ rdlock();
if (start == log_time::EPOCH) {
// client wants to start from the beginning
@@ -1143,7 +1143,7 @@
continue;
}
- // NB: calling out to another object with mLogElementsLock held (safe)
+ // NB: calling out to another object with wrlock() held (safe)
if (filter) {
int ret = (*filter)(element, arg);
if (ret == false) {
@@ -1166,7 +1166,7 @@
(element->getDropped() && !sameTid) ? 0 : element->getTid();
}
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
// range locking in LastLogTimes looks after us
max = element->flushTo(reader, this, privileged, sameTid);
@@ -1176,20 +1176,20 @@
}
skip = maxSkip;
- pthread_mutex_lock(&mLogElementsLock);
+ rdlock();
}
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return max;
}
std::string LogBuffer::formatStatistics(uid_t uid, pid_t pid,
unsigned int logMask) {
- pthread_mutex_lock(&mLogElementsLock);
+ wrlock();
std::string ret = stats.format(uid, pid, logMask);
- pthread_mutex_unlock(&mLogElementsLock);
+ unlock();
return ret;
}
diff --git a/logd/LogBuffer.h b/logd/LogBuffer.h
index 1272c20..51edd86 100644
--- a/logd/LogBuffer.h
+++ b/logd/LogBuffer.h
@@ -76,7 +76,7 @@
class LogBuffer {
LogBufferElementCollection mLogElements;
- pthread_mutex_t mLogElementsLock;
+ pthread_rwlock_t mLogElementsLock;
LogStatistics stats;
@@ -154,7 +154,7 @@
return tags.tagToName(tag);
}
- // helper must be protected directly or implicitly by lock()/unlock()
+ // helper must be protected directly or implicitly by wrlock()/unlock()
const char* pidToName(pid_t pid) {
return stats.pidToName(pid);
}
@@ -164,11 +164,14 @@
const char* uidToName(uid_t uid) {
return stats.uidToName(uid);
}
- void lock() {
- pthread_mutex_lock(&mLogElementsLock);
+ void wrlock() {
+ pthread_rwlock_wrlock(&mLogElementsLock);
+ }
+ void rdlock() {
+ pthread_rwlock_rdlock(&mLogElementsLock);
}
void unlock() {
- pthread_mutex_unlock(&mLogElementsLock);
+ pthread_rwlock_unlock(&mLogElementsLock);
}
private:
diff --git a/logd/LogBufferElement.cpp b/logd/LogBufferElement.cpp
index 04a620c..381c974 100644
--- a/logd/LogBufferElement.cpp
+++ b/logd/LogBufferElement.cpp
@@ -121,7 +121,7 @@
}
static const char format_uid[] = "uid=%u%s%s %s %u line%s";
- parent->lock();
+ parent->wrlock();
const char* name = parent->uidToName(mUid);
parent->unlock();
const char* commName = android::tidToName(mTid);
@@ -129,7 +129,7 @@
commName = android::tidToName(mPid);
}
if (!commName) {
- parent->lock();
+ parent->wrlock();
commName = parent->pidToName(mPid);
parent->unlock();
}
diff --git a/logd/LogKlog.cpp b/logd/LogKlog.cpp
index d23254d..a7e7208 100644
--- a/logd/LogKlog.cpp
+++ b/logd/LogKlog.cpp
@@ -579,7 +579,7 @@
const pid_t tid = pid;
uid_t uid = AID_ROOT;
if (pid) {
- logbuf->lock();
+ logbuf->wrlock();
uid = logbuf->pidToUid(pid);
logbuf->unlock();
}
diff --git a/logd/LogReader.cpp b/logd/LogReader.cpp
index feb105f..6d69316 100644
--- a/logd/LogReader.cpp
+++ b/logd/LogReader.cpp
@@ -111,7 +111,7 @@
if (!fastcmp<strncmp>(buffer, "dumpAndClose", 12)) {
// Allow writer to get some cycles, and wait for pending notifications
sched_yield();
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
LogTimeEntry::unlock();
sched_yield();
nonBlock = true;
@@ -212,7 +212,7 @@
void LogReader::doSocketDelete(SocketClient* cli) {
LastLogTimes& times = mLogbuf.mTimes;
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
LastLogTimes::iterator it = times.begin();
while (it != times.end()) {
LogTimeEntry* entry = (*it);
diff --git a/logd/LogStatistics.cpp b/logd/LogStatistics.cpp
index 3f020b6..0b6b28c 100644
--- a/logd/LogStatistics.cpp
+++ b/logd/LogStatistics.cpp
@@ -228,6 +228,7 @@
}
// caller must own and free character string
+// Requires parent LogBuffer::wrlock() to be held
const char* LogStatistics::uidToName(uid_t uid) const {
// Local hard coded favourites
if (uid == AID_LOGD) {
diff --git a/logd/LogTimes.cpp b/logd/LogTimes.cpp
index ccc550a..25c2ad2 100644
--- a/logd/LogTimes.cpp
+++ b/logd/LogTimes.cpp
@@ -78,7 +78,7 @@
void LogTimeEntry::threadStop(void* obj) {
LogTimeEntry* me = reinterpret_cast<LogTimeEntry*>(obj);
- lock();
+ wrlock();
if (me->mNonBlock) {
me->error_Locked();
@@ -134,7 +134,7 @@
me->leadingDropped = true;
- lock();
+ wrlock();
log_time start = me->mStart;
@@ -160,7 +160,7 @@
start = logbuf.flushTo(client, start, me->mLastTid, privileged,
security, FilterSecondPass, me);
- lock();
+ wrlock();
if (start == LogBufferElement::FLUSH_ERROR) {
me->error_Locked();
@@ -191,7 +191,7 @@
int LogTimeEntry::FilterFirstPass(const LogBufferElement* element, void* obj) {
LogTimeEntry* me = reinterpret_cast<LogTimeEntry*>(obj);
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
if (me->leadingDropped) {
if (element->getDropped()) {
@@ -219,7 +219,7 @@
int LogTimeEntry::FilterSecondPass(const LogBufferElement* element, void* obj) {
LogTimeEntry* me = reinterpret_cast<LogTimeEntry*>(obj);
- LogTimeEntry::lock();
+ LogTimeEntry::wrlock();
me->mStart = element->getRealTime();
diff --git a/logd/LogTimes.h b/logd/LogTimes.h
index ec8252e..9ca2aea 100644
--- a/logd/LogTimes.h
+++ b/logd/LogTimes.h
@@ -61,7 +61,10 @@
const log_time mEnd; // only relevant if mNonBlock
// Protect List manipulations
- static void lock(void) {
+ static void wrlock(void) {
+ pthread_mutex_lock(×Lock);
+ }
+ static void rdlock(void) {
pthread_mutex_lock(×Lock);
}
static void unlock(void) {
@@ -104,7 +107,7 @@
mError = true;
}
void error(void) {
- lock();
+ wrlock();
error_Locked();
unlock();
}
diff --git a/rootdir/init.rc b/rootdir/init.rc
index a94a717..e51a3e3 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -501,6 +501,7 @@
on zygote-start && property:ro.crypto.state=encrypted && property:ro.crypto.type=file
start netd
start zygote
+ start zygote_secondary
on boot
# basic network init
