Commit Graph

5 Commits

Author SHA1 Message Date
Joshua Duong 5cf7868b7e [adbwifi] Add A_STLS command.
This command will be sent by adbd to notify the client that the
connection will be over TLS.

When client connects, it will send the CNXN packet, as usual. If the
server connection has TLS enabled, it will send the A_STLS packet
(regardless of whether auth is required). At this point, the client's
only valid response is to send a A_STLS packet. Once both sides have
exchanged the A_STLS packet, both will start the TLS handshake.

If auth is required, then the client will receive a CertificateRequest
with a list of known public keys (SHA256 hash) that it can use in its
certificate. Otherwise, the list will be empty and the client can assume
that either any key will work, or none will work.

If the handshake was successful, the server will send the CNXN packet
and the usual adb protocol is resumed over TLS. If the handshake failed,
both sides will disconnect, as there's no point to retry because the
server's known keys have already been communicated.

Bug: 111434128

Test: WIP; will add to adb_test.py/adb_device.py.

Enable wireless debugging in the Settings, then 'adb connect
<ip>:<port>'. Connection should succeed if key is in keystore. Used
wireshark to check for packet encryption.

Change-Id: I3d60647491c6c6b92297e4f628707a6457fa9420
2020-02-21 21:07:13 +00:00
Yurii Zubrytskyi 5dda7f6cea [adb] Optimize adbd's usb reading
Try to not allocate as many blocks on the heap, and reuse
memory instead of copying it

Get rid of unique_ptr and shared_ptr where possible, move
the Block objects themselves

Overall this reduces the time spent in memcpy() from 30% to
15% of the whole 'adb push' command, and gets rid of about 5%
of the time spent in the malloc/free calls

Test: builds
Change-Id: I8995115274b6f08a4df13c58183c928ef384a767
2019-11-28 18:24:01 -08:00
Josh Gao bc4dbfafb1 adb: fix NonblockingFdConnection's behavior with large writes.
Large opportunistic writes would perform a write without updating
writable_ or waking up the polling thread, which resulted in the worker
thread never polling with POLLOUT.

Test: adb_benchmark
Change-Id: Ifed3b97a4b647b539dcd2df858572fa7da9a22d0
2018-11-12 20:54:39 -08:00
Pirama Arumuga Nainar 29e3dd8548 Adapt to switch to libc++ for Windows
Bug: http://b/91353691

- libcxx has ETXTBSY for Windows
- adb/sysdeps/memory.h is no longer needed

Test: Build and test Windows binaries under Wine.

Change-Id: I9c27087d46c49cb25b391c4adae8d9e24724784d
2018-09-21 10:46:25 -07:00
Josh Gao 6082e7dafb adb: add nonblocking fd Connection.
Implement a nonblocking version of FdConnection. The initial
implementation will be somewhat slower than the blocking one for large
packet sizes, due to an extra copy when coalescing an IOVector into an
apacket, but is still substantially faster for small packets.

Test: adb_benchmark
Change-Id: I4900c9ddf685d3bd557b8cb43958452ecb23db53
2018-06-12 17:04:34 -07:00