Merge "Don't show UI on default encryption" into mnc-dr-dev
diff --git a/fs_mgr/fs_mgr_verity.c b/fs_mgr/fs_mgr_verity.c
index 60f5398..a9e3358 100644
--- a/fs_mgr/fs_mgr_verity.c
+++ b/fs_mgr/fs_mgr_verity.c
@@ -47,6 +47,8 @@
#define VERITY_METADATA_SIZE 32768
#define VERITY_TABLE_RSA_KEY "/verity_key"
+#define VERITY_TABLE_HASH_IDX 8
+#define VERITY_TABLE_SALT_IDX 9
#define METADATA_MAGIC 0x01564c54
#define METADATA_TAG_MAX_LENGTH 63
@@ -141,6 +143,33 @@
return retval;
}
+static int invalidate_table(char *table, int table_length)
+{
+ int n = 0;
+ int idx = 0;
+ int cleared = 0;
+
+ while (n < table_length) {
+ if (table[n++] == ' ') {
+ ++idx;
+ }
+
+ if (idx != VERITY_TABLE_HASH_IDX && idx != VERITY_TABLE_SALT_IDX) {
+ continue;
+ }
+
+ while (n < table_length && table[n] != ' ') {
+ table[n++] = '0';
+ }
+
+ if (++cleared == 2) {
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
static int squashfs_get_target_device_size(char *blk_device, uint64_t *device_size)
{
struct squashfs_info sq_info;
@@ -957,6 +986,7 @@
char *verity_blk_name = 0;
char *verity_table = 0;
char *verity_table_signature = 0;
+ int verity_table_length = 0;
uint64_t device_size = 0;
_Alignas(struct dm_ioctl) char buffer[DM_BUF_SIZE];
@@ -983,6 +1013,7 @@
}
retval = FS_MGR_SETUP_VERITY_FAIL;
+ verity_table_length = strlen(verity_table);
// get the device mapper fd
if ((fd = open("/dev/device-mapper", O_RDWR)) < 0) {
@@ -1002,13 +1033,6 @@
goto out;
}
- // verify the signature on the table
- if (verify_table(verity_table_signature,
- verity_table,
- strlen(verity_table)) < 0) {
- goto out;
- }
-
if (load_verity_state(fstab, &mode) < 0) {
/* if accessing or updating the state failed, switch to the default
* safe mode. This makes sure the device won't end up in an endless
@@ -1017,6 +1041,22 @@
mode = VERITY_MODE_EIO;
}
+ // verify the signature on the table
+ if (verify_table(verity_table_signature,
+ verity_table,
+ verity_table_length) < 0) {
+ if (mode == VERITY_MODE_LOGGING) {
+ // the user has been warned, allow mounting without dm-verity
+ retval = FS_MGR_SETUP_VERITY_SUCCESS;
+ goto out;
+ }
+
+ // invalidate root hash and salt to trigger device-specific recovery
+ if (invalidate_table(verity_table, verity_table_length) < 0) {
+ goto out;
+ }
+ }
+
INFO("Enabling dm-verity for %s (mode %d)\n", mount_point, mode);
// load the verity mapping table
diff --git a/healthd/BatteryMonitor.cpp b/healthd/BatteryMonitor.cpp
index 1cad427..396dfef 100644
--- a/healthd/BatteryMonitor.cpp
+++ b/healthd/BatteryMonitor.cpp
@@ -39,6 +39,7 @@
#define POWER_SUPPLY_SYSFS_PATH "/sys/class/" POWER_SUPPLY_SUBSYSTEM
#define FAKE_BATTERY_CAPACITY 42
#define FAKE_BATTERY_TEMPERATURE 424
+#define ALWAYS_PLUGGED_CAPACITY 100
namespace android {
@@ -199,6 +200,15 @@
mBatteryFixedTemperature :
getIntField(mHealthdConfig->batteryTemperaturePath);
+ // For devices which do not have battery and are always plugged
+ // into power souce.
+ if (mAlwaysPluggedDevice) {
+ props.chargerAcOnline = true;
+ props.batteryPresent = true;
+ props.batteryStatus = BATTERY_STATUS_CHARGING;
+ props.batteryHealth = BATTERY_HEALTH_GOOD;
+ }
+
const int SIZE = 128;
char buf[SIZE];
String8 btech;
@@ -542,8 +552,15 @@
closedir(dir);
}
- if (!mChargerNames.size())
+ // This indicates that there is no charger driver registered.
+ // Typically the case for devices which do not have a battery and
+ // and are always plugged into AC mains.
+ if (!mChargerNames.size()) {
KLOG_ERROR(LOG_TAG, "No charger supplies found\n");
+ mBatteryFixedCapacity = ALWAYS_PLUGGED_CAPACITY;
+ mBatteryFixedTemperature = FAKE_BATTERY_TEMPERATURE;
+ mAlwaysPluggedDevice = true;
+ }
if (!mBatteryDevicePresent) {
KLOG_WARNING(LOG_TAG, "No battery devices found\n");
hc->periodic_chores_interval_fast = -1;
diff --git a/healthd/BatteryMonitor.h b/healthd/BatteryMonitor.h
index 3425f27..a61171f 100644
--- a/healthd/BatteryMonitor.h
+++ b/healthd/BatteryMonitor.h
@@ -46,6 +46,7 @@
struct healthd_config *mHealthdConfig;
Vector<String8> mChargerNames;
bool mBatteryDevicePresent;
+ bool mAlwaysPluggedDevice;
int mBatteryFixedCapacity;
int mBatteryFixedTemperature;
struct BatteryProperties props;
diff --git a/libutils/tests/Vector_test.cpp b/libutils/tests/Vector_test.cpp
index 09914bd..96d3168 100644
--- a/libutils/tests/Vector_test.cpp
+++ b/libutils/tests/Vector_test.cpp
@@ -16,6 +16,8 @@
#define LOG_TAG "Vector_test"
+#define __STDC_LIMIT_MACROS
+#include <stdint.h>
#include <utils/Vector.h>
#include <cutils/log.h>
#include <gtest/gtest.h>
diff --git a/logd/LogBuffer.cpp b/logd/LogBuffer.cpp
index 4933a46..559fa2e 100644
--- a/logd/LogBuffer.cpp
+++ b/logd/LogBuffer.cpp
@@ -242,8 +242,8 @@
LogBufferElementCollection::iterator it, bool engageStats) {
LogBufferElement *e = *it;
log_id_t id = e->getLogId();
- LogBufferIteratorMap::iterator f = mLastWorstUid[id].find(e->getUid());
+ LogBufferIteratorMap::iterator f = mLastWorstUid[id].find(e->getUid());
if ((f != mLastWorstUid[id].end()) && (it == f->second)) {
mLastWorstUid[id].erase(f);
}
@@ -329,7 +329,51 @@
// prune "pruneRows" of type "id" from the buffer.
//
+// This garbage collection task is used to expire log entries. It is called to
+// remove all logs (clear), all UID logs (unprivileged clear), or every
+// 256 or 10% of the total logs (whichever is less) to prune the logs.
+//
+// First there is a prep phase where we discover the reader region lock that
+// acts as a backstop to any pruning activity to stop there and go no further.
+//
+// There are three major pruning loops that follow. All expire from the oldest
+// entries. Since there are multiple log buffers, the Android logging facility
+// will appear to drop entries 'in the middle' when looking at multiple log
+// sources and buffers. This effect is slightly more prominent when we prune
+// the worst offender by logging source. Thus the logs slowly loose content
+// and value as you move back in time. This is preferred since chatty sources
+// invariably move the logs value down faster as less chatty sources would be
+// expired in the noise.
+//
+// The first loop performs blacklisting and worst offender pruning. Falling
+// through when there are no notable worst offenders and have not hit the
+// region lock preventing further worst offender pruning. This loop also looks
+// after managing the chatty log entries and merging to help provide
+// statistical basis for blame. The chatty entries are not a notification of
+// how much logs you may have, but instead represent how much logs you would
+// have had in a virtual log buffer that is extended to cover all the in-memory
+// logs without loss. They last much longer than the represented pruned logs
+// since they get multiplied by the gains in the non-chatty log sources.
+//
+// The second loop get complicated because an algorithm of watermarks and
+// history is maintained to reduce the order and keep processing time
+// down to a minimum at scale. These algorithms can be costly in the face
+// of larger log buffers, or severly limited processing time granted to a
+// background task at lowest priority.
+//
+// This second loop does straight-up expiration from the end of the logs
+// (again, remember for the specified log buffer id) but does some whitelist
+// preservation. Thus whitelist is a Hail Mary low priority, blacklists and
+// spam filtration all take priority. This second loop also checks if a region
+// lock is causing us to buffer too much in the logs to help the reader(s),
+// and will tell the slowest reader thread to skip log entries, and if
+// persistent and hits a further threshold, kill the reader thread.
+//
+// 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.
+//
void LogBuffer::prune(log_id_t id, unsigned long pruneRows, uid_t caller_uid) {
LogTimeEntry *oldest = NULL;
@@ -410,7 +454,12 @@
bool kick = false;
bool leading = true;
it = mLogElements.begin();
- if (worst != (uid_t) -1) {
+ // Perform at least one mandatory garbage collection cycle in following
+ // - clear leading chatty tags
+ // - merge chatty tags
+ // - check age-out of preserved logs
+ bool gc = pruneRows <= 1;
+ if (!gc && (worst != (uid_t) -1)) {
LogBufferIteratorMap::iterator f = mLastWorstUid[id].find(worst);
if ((f != mLastWorstUid[id].end())
&& (f->second != mLogElements.end())) {
@@ -481,7 +530,7 @@
// unmerged drop message
if (dropped) {
last.add(e);
- if ((e->getUid() == worst)
+ if ((!gc && (e->getUid() == worst))
|| (mLastWorstUid[id].find(e->getUid())
== mLastWorstUid[id].end())) {
mLastWorstUid[id][e->getUid()] = it;
@@ -516,7 +565,10 @@
it = erase(it, false);
} else {
last.add(e);
- mLastWorstUid[id][e->getUid()] = it;
+ if (!gc || (mLastWorstUid[id].find(worst)
+ == mLastWorstUid[id].end())) {
+ mLastWorstUid[id][worst] = it;
+ }
++it;
}
}
diff --git a/logd/LogKlog.cpp b/logd/LogKlog.cpp
index 39da87c..0a5df24 100644
--- a/logd/LogKlog.cpp
+++ b/logd/LogKlog.cpp
@@ -48,7 +48,7 @@
char c;
while (((c = *s++)) && (++len <= max_prio_len)) {
if (!isdigit(c)) {
- return (c == '>') ? s : NULL;
+ return ((c == '>') && (*s == '[')) ? s : NULL;
}
}
return NULL;
@@ -296,6 +296,22 @@
}
}
+pid_t LogKlog::sniffPid(const char *cp) {
+ while (*cp) {
+ // Mediatek kernels with modified printk
+ if (*cp == '[') {
+ int pid = 0;
+ char dummy;
+ if (sscanf(cp, "[%d:%*[a-z_./0-9:A-Z]]%c", &pid, &dummy) == 2) {
+ return pid;
+ }
+ break; // Only the first one
+ }
+ ++cp;
+ }
+ return 0;
+}
+
// Passed the entire SYSLOG_ACTION_READ_ALL buffer and interpret a
// compensated start time.
void LogKlog::synchronize(const char *buf) {
@@ -419,9 +435,9 @@
// sniff for start marker
const char klogd_message[] = "logd.klogd: ";
- if (!strncmp(buf, klogd_message, sizeof(klogd_message) - 1)) {
- char *endp;
- uint64_t sig = strtoll(buf + sizeof(klogd_message) - 1, &endp, 10);
+ const char *start = strstr(buf, klogd_message);
+ if (start) {
+ uint64_t sig = strtoll(start + sizeof(klogd_message) - 1, NULL, 10);
if (sig == signature.nsec()) {
if (initialized) {
enableLogging = true;
@@ -437,10 +453,10 @@
return 0;
}
- // Parse pid, tid and uid (not possible)
- const pid_t pid = 0;
- const pid_t tid = 0;
- const uid_t uid = 0;
+ // Parse pid, tid and uid
+ const pid_t pid = sniffPid(buf);
+ const pid_t tid = pid;
+ const uid_t uid = pid ? logbuf->pidToUid(pid) : 0;
// Parse (rules at top) to pull out a tag from the incoming kernel message.
// Some may view the following as an ugly heuristic, the desire is to
@@ -452,7 +468,7 @@
if (!*buf) {
return 0;
}
- const char *start = buf;
+ start = buf;
const char *tag = "";
const char *etag = tag;
if (!isspace(*buf)) {
@@ -463,7 +479,14 @@
// <PRI>[<TIME>] "[INFO]"<tag> ":" message
bt = buf + 6;
}
- for(et = bt; *et && (*et != ':') && !isspace(*et); ++et);
+ for(et = bt; *et && (*et != ':') && !isspace(*et); ++et) {
+ // skip ':' within [ ... ]
+ if (*et == '[') {
+ while (*et && *et != ']') {
+ ++et;
+ }
+ }
+ }
for(cp = et; isspace(*cp); ++cp);
size_t size;
@@ -560,7 +583,17 @@
etag = tag = "";
}
}
- size_t l = etag - tag;
+ // Suppress additional stutter in tag:
+ // eg: [143:healthd]healthd -> [143:healthd]
+ size_t taglen = etag - tag;
+ // Mediatek-special printk induced stutter
+ char *np = strrchr(tag, ']');
+ if (np && (++np < etag)) {
+ size_t s = etag - np;
+ if (((s + s) < taglen) && !strncmp(np, np - 1 - s, s)) {
+ taglen = np - tag;
+ }
+ }
// skip leading space
while (isspace(*buf)) {
++buf;
@@ -571,11 +604,11 @@
--b;
}
// trick ... allow tag with empty content to be logged. log() drops empty
- if (!b && l) {
+ if (!b && taglen) {
buf = " ";
b = 1;
}
- size_t n = 1 + l + 1 + b + 1;
+ size_t n = 1 + taglen + 1 + b + 1;
// Allocate a buffer to hold the interpreted log message
int rc = n;
@@ -584,15 +617,15 @@
rc = -ENOMEM;
return rc;
}
- char *np = newstr;
+ np = newstr;
// Convert priority into single-byte Android logger priority
*np = convertKernelPrioToAndroidPrio(pri);
++np;
// Copy parsed tag following priority
- strncpy(np, tag, l);
- np += l;
+ strncpy(np, tag, taglen);
+ np += taglen;
*np = '\0';
++np;
diff --git a/logd/LogKlog.h b/logd/LogKlog.h
index a898c63..081d344 100644
--- a/logd/LogKlog.h
+++ b/logd/LogKlog.h
@@ -49,6 +49,7 @@
protected:
void sniffTime(log_time &now, const char **buf, bool reverse);
+ pid_t sniffPid(const char *buf);
void calculateCorrection(const log_time &monotonic, const char *real_string);
virtual bool onDataAvailable(SocketClient *cli);
diff --git a/rootdir/init.rc b/rootdir/init.rc
index ab3ca5a..317207c 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -140,17 +140,27 @@
# sets up initial cpusets for ActivityManager
mkdir /dev/cpuset
mount cpuset none /dev/cpuset
- mkdir /dev/cpuset/foreground
- mkdir /dev/cpuset/foreground/boost
- mkdir /dev/cpuset/background
+
# this ensures that the cpusets are present and usable, but the device's
# init.rc must actually set the correct cpus
+ mkdir /dev/cpuset/foreground
write /dev/cpuset/foreground/cpus 0
- write /dev/cpuset/foreground/boost/cpus 0
- write /dev/cpuset/background/cpus 0
write /dev/cpuset/foreground/mems 0
+ mkdir /dev/cpuset/foreground/boost
+ write /dev/cpuset/foreground/boost/cpus 0
write /dev/cpuset/foreground/boost/mems 0
+ mkdir /dev/cpuset/background
+ write /dev/cpuset/background/cpus 0
write /dev/cpuset/background/mems 0
+
+ # system-background is for system tasks that should only run on
+ # little cores, not on bigs
+ # to be used only by init, so don't change system-bg permissions
+ mkdir /dev/cpuset/system-background
+ write /dev/cpuset/system-background/cpus 0
+ write /dev/cpuset/system-background/mems 0
+
+ # change permissions for all cpusets we'll touch at runtime
chown system system /dev/cpuset
chown system system /dev/cpuset/foreground
chown system system /dev/cpuset/foreground/boost
@@ -548,9 +558,11 @@
socket logdr seqpacket 0666 logd logd
socket logdw dgram 0222 logd logd
group root system
+ writepid /dev/cpuset/system-background/tasks
service logd-reinit /system/bin/logd --reinit
oneshot
+ writepid /dev/cpuset/system-background/tasks
disabled
service healthd /sbin/healthd
@@ -585,6 +597,7 @@
class core
critical
socket lmkd seqpacket 0660 system system
+ writepid /dev/cpuset/system-background/tasks
service servicemanager /system/bin/servicemanager
class core
@@ -614,9 +627,11 @@
service debuggerd /system/bin/debuggerd
class main
+ writepid /dev/cpuset/system-background/tasks
service debuggerd64 /system/bin/debuggerd64
class main
+ writepid /dev/cpuset/system-background/tasks
service ril-daemon /system/bin/rild
class main
@@ -631,6 +646,7 @@
user system
group graphics drmrpc
onrestart restart zygote
+ writepid /dev/cpuset/system-background/tasks
service drm /system/bin/drmserver
class main
@@ -725,6 +741,7 @@
class late_start
user root
oneshot
+ writepid /dev/cpuset/system-background/tasks
on property:persist.logd.logpersistd=logcatd
# all exec/services are called with umask(077), so no gain beyond 0700
@@ -739,3 +756,4 @@
# logd for write to /data/misc/logd, log group for read from log daemon
user logd
group log
+ writepid /dev/cpuset/system-background/tasks
diff --git a/rootdir/init.usb.configfs.rc b/rootdir/init.usb.configfs.rc
index 232c044..186384b 100644
--- a/rootdir/init.usb.configfs.rc
+++ b/rootdir/init.usb.configfs.rc
@@ -2,15 +2,27 @@
write /config/usb_gadget/g1/UDC "none"
stop adbd
write /config/usb_gadget/g1/bDeviceClass 0
+ write /config/usb_gadget/g1/bDeviceSubClass 0
+ write /config/usb_gadget/g1/bDeviceProtocol 0
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=adb && property:sys.usb.configfs=1
+ start adbd
+
+on property:sys.usb.ffs.ready=1 && property:sys.usb.config=adb && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "adb"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f1
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
setprop sys.usb.state ${sys.usb.config}
on property:sys.usb.config=mtp && property:sys.usb.configfs=1
- rmdir /config/usb_gadget/g1/configs/b.1
- mkdir /config/usb_gadget/g1/configs/b.1 0777 shell shell
- mkdir /config/usb_gadget/g1/configs/b.1/strings/0x409 0770 shell shell
- write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "ffs1"
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "mtp"
rm /config/usb_gadget/g1/configs/b.1/f1
rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
symlink /config/usb_gadget/g1/functions/mtp.gs0 /config/usb_gadget/g1/configs/b.1/f1
write /config/usb_gadget/g1/UDC ${sys.usb.controller}
setprop sys.usb.state ${sys.usb.config}
@@ -19,24 +31,20 @@
start adbd
on property:sys.usb.ffs.ready=1 && property:sys.usb.config=mtp,adb && property:sys.usb.configfs=1
- rmdir /config/usb_gadget/g1/configs/b.1
- mkdir /config/usb_gadget/g1/configs/b.1 0777 shell shell
- mkdir /config/usb_gadget/g1/configs/b.1/strings/0x409 0770 shell shell
- write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "ffs1"
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "mtp_adb"
rm /config/usb_gadget/g1/configs/b.1/f1
rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
symlink /config/usb_gadget/g1/functions/mtp.gs0 /config/usb_gadget/g1/configs/b.1/f1
symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f2
write /config/usb_gadget/g1/UDC ${sys.usb.controller}
setprop sys.usb.state ${sys.usb.config}
on property:sys.usb.config=ptp && property:sys.usb.configfs=1
- rmdir /config/usb_gadget/g1/configs/b.1
- mkdir /config/usb_gadget/g1/configs/b.1 0777 shell shell
- mkdir /config/usb_gadget/g1/configs/b.1/strings/0x409 0770 shell shell
- write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "ffs1"
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "ptp"
rm /config/usb_gadget/g1/configs/b.1/f1
rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
symlink /config/usb_gadget/g1/functions/ptp.gs1 /config/usb_gadget/g1/configs/b.1/f1
write /config/usb_gadget/g1/UDC ${sys.usb.controller}
setprop sys.usb.state ${sys.usb.config}
@@ -45,13 +53,123 @@
start adbd
on property:sys.usb.ffs.ready=1 && property:sys.usb.config=ptp,adb && property:sys.usb.configfs=1
- rmdir /config/usb_gadget/g1/configs/b.1
- mkdir /config/usb_gadget/g1/configs/b.1 0777 shell shell
- mkdir /config/usb_gadget/g1/configs/b.1/strings/0x409 0770 shell shell
- write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "ffs1"
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "ptp_adb"
rm /config/usb_gadget/g1/configs/b.1/f1
rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
symlink /config/usb_gadget/g1/functions/ptp.gs1 /config/usb_gadget/g1/configs/b.1/f1
symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f2
write /config/usb_gadget/g1/UDC ${sys.usb.controller}
setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=accessory && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "accessory"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/accessory.gs2 /config/usb_gadget/g1/configs/b.1/f1
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=accessory,adb && property:sys.usb.configfs=1
+ start adbd
+
+on property:sys.usb.ffs.ready=1 && property:sys.usb.config=accessory,adb && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "accessory_adb"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/accessory.gs2 /config/usb_gadget/g1/configs/b.1/f1
+ symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f2
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=audio_source && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "audiosource"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/audio_source.gs2 /config/usb_gadget/g1/configs/b.1/f1
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=audio_source,adb && property:sys.usb.configfs=1
+ start adbd
+
+on property:sys.usb.ffs.ready=1 && property:sys.usb.config=audio_source,adb && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "audiosource_adb"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/audio_source.gs2 /config/usb_gadget/g1/configs/b.1/f1
+ symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f2
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=accessory,audio_source && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "accessory_audiosource"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/accessory.gs2 /config/usb_gadget/g1/configs/b.1/f1
+ symlink /config/usb_gadget/g1/functions/audio_source.gs3 /config/usb_gadget/g1/configs/b.1/f2
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=accessory,audio_source,adb && property:sys.usb.configfs=1
+ start adbd
+
+on property:sys.usb.ffs.ready=1 && property:sys.usb.config=accessory,audio_source,adb && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "accessory_audiosource_adb"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/accessory.gs2 /config/usb_gadget/g1/configs/b.1/f1
+ symlink /config/usb_gadget/g1/functions/audio_source.gs3 /config/usb_gadget/g1/configs/b.1/f2
+ symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f3
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=midi && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "midi"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/midi.gs5 /config/usb_gadget/g1/configs/b.1/f1
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=midi,adb && property:sys.usb.configfs=1
+ start adbd
+
+on property:sys.usb.ffs.ready=1 && property:sys.usb.config=midi,adb && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "midi_adb"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/midi.gs5 /config/usb_gadget/g1/configs/b.1/f1
+ symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f2
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=rndis && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "rndis"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/rndis.gs4 /config/usb_gadget/g1/configs/b.1/f1
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
+
+on property:sys.usb.config=rndis,adb && property:sys.usb.configfs=1
+ start adbd
+
+on property:sys.usb.ffs.ready=1 && property:sys.usb.config=rndis,adb && property:sys.usb.configfs=1
+ write /config/usb_gadget/g1/configs/b.1/strings/0x409/configuration "rndis_adb"
+ rm /config/usb_gadget/g1/configs/b.1/f1
+ rm /config/usb_gadget/g1/configs/b.1/f2
+ rm /config/usb_gadget/g1/configs/b.1/f3
+ symlink /config/usb_gadget/g1/functions/rndis.gs4 /config/usb_gadget/g1/configs/b.1/f1
+ symlink /config/usb_gadget/g1/functions/ffs.adb /config/usb_gadget/g1/configs/b.1/f2
+ write /config/usb_gadget/g1/UDC ${sys.usb.controller}
+ setprop sys.usb.state ${sys.usb.config}
