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From: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
To: linux-bluetooth@vger.kernel.org
Subject: [PATCH v5 0/3] Enable use of L2CAP_MODE_EXT_FLOWCTL
Date: Mon, 23 Mar 2020 13:34:55 -0700
Message-Id: <20200323203458.24733-1-luiz.dentz@gmail.com>
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Enable use of L2CAP_MODE_EXT_FLOWCTL
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From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> This enables use of BT_MODE_EXT_FLOWCTL with BT_MODE socketopt, in addition to that add support for DEFER_SETUP to be used with client sockets so they can be grouped and sent together. BT_MODE is not compatible with L2CAP_OPTIONS so attempting to use them both will cause an error to be returned to the applicatio. This has been tested by introducing support for L2CAP_MODE_EXT_FLOWCTL into l2cap-tester which now produces the following trace: Enable ecred PDUs: #echo 1 > /sys/module/bluetooth/parameters/enable_ecred #sudo tools/l2cap-tester -p "L2CAP Ext-Flowctl" L2CAP Ext-Flowctl Client - Success - init Read Index List callback Status: 0x00 New hciemu instance created Index Added callback Index: 0x0000 Read Info callback Status: 0x00 Address: 00:AA:01:00:00:00 Version: 0x09 Manufacturer: 0x003f Supported settings: 0x0001be1b Current settings: 0x00000200 Class: 0x000000 Name: Short name: L2CAP Ext-Flowctl Client - Success - setup Powering on controller Controller powered on Client set connectable status 0x00 L2CAP Ext-Flowctl Client - Success - setup complete L2CAP Ext-Flowctl Client - Success - run Connect in progress Successfully connected L2CAP Ext-Flowctl Client - Success - test passed L2CAP Ext-Flowctl Client - Success - teardown Index Removed callback Index: 0x0000 L2CAP Ext-Flowctl Client - Success - teardown complete L2CAP Ext-Flowctl Client - Success - done L2CAP Ext-Flowctl Client, Direct Advertising - Success - init Read Index List callback Status: 0x00 New hciemu instance created Index Added callback Index: 0x0000 Read Info callback Status: 0x00 Address: 00:AA:01:00:00:00 Version: 0x09 Manufacturer: 0x003f Supported settings: 0x0001be1b Current settings: 0x00000200 Class: 0x000000 Name: Short name: L2CAP Ext-Flowctl Client, Direct Advertising - Success - setup Powering on controller Controller powered on Client set connectable status 0x00 L2CAP Ext-Flowctl Client, Direct Advertising - Success - setup complete L2CAP Ext-Flowctl Client, Direct Advertising - Success - run Connect in progress Received advertising parameters HCI command L2CAP Ext-Flowctl Client, Direct Advertising - Success - test passed L2CAP Ext-Flowctl Client, Direct Advertising - Success - teardown Index Removed callback Index: 0x0000 L2CAP Ext-Flowctl Client, Direct Advertising - Success - teardown complete L2CAP Ext-Flowctl Client, Direct Advertising - Success - done L2CAP Ext-Flowctl Client SMP - Success - init Read Index List callback Status: 0x00 New hciemu instance created Index Added callback Index: 0x0000 Read Info callback Status: 0x00 Address: 00:AA:01:00:00:00 Version: 0x09 Manufacturer: 0x003f Supported settings: 0x0001be1b Current settings: 0x00000200 Class: 0x000000 Name: Short name: L2CAP Ext-Flowctl Client SMP - Success - setup Powering on controller Controller powered on Client set connectable status 0x00 L2CAP Ext-Flowctl Client SMP - Success - setup complete L2CAP Ext-Flowctl Client SMP - Success - run Connect in progress Successfully connected L2CAP Ext-Flowctl Client SMP - Success - test passed L2CAP Ext-Flowctl Client SMP - Success - teardown Index Removed callback Index: 0x0000 L2CAP Ext-Flowctl Client SMP - Success - teardown complete L2CAP Ext-Flowctl Client SMP - Success - done L2CAP Ext-Flowctl Client - Command Reject - init Read Index List callback Status: 0x00 New hciemu instance created Index Added callback Index: 0x0000 Read Info callback Status: 0x00 Address: 00:AA:01:00:00:00 Version: 0x09 Manufacturer: 0x003f Supported settings: 0x0001be1b Current settings: 0x00000200 Class: 0x000000 Name: Short name: L2CAP Ext-Flowctl Client - Command Reject - setup Powering on controller Controller powered on Client set connectable status 0x00 L2CAP Ext-Flowctl Client - Command Reject - setup complete L2CAP Ext-Flowctl Client - Command Reject - run Connect in progress New connection with handle 0x002a Connect failed: Connection refused (111) L2CAP Ext-Flowctl Client - Command Reject - test passed L2CAP Ext-Flowctl Client - Command Reject - teardown Index Removed callback Index: 0x0000 L2CAP Ext-Flowctl Client - Command Reject - teardown complete L2CAP Ext-Flowctl Client - Command Reject - done L2CAP Ext-Flowctl Client - Open two sockets - init Read Index List callback Status: 0x00 New hciemu instance created Index Added callback Index: 0x0000 Read Info callback Status: 0x00 Address: 00:AA:01:00:00:00 Version: 0x09 Manufacturer: 0x003f Supported settings: 0x0001be1b Current settings: 0x00000200 Class: 0x000000 Name: Short name: L2CAP Ext-Flowctl Client - Open two sockets - setup Powering on controller Controller powered on L2CAP Ext-Flowctl Client - Open two sockets - setup complete L2CAP Ext-Flowctl Client - Open two sockets - run Connect in progress, sk = 19 (deferred) HCI Command 0x200b length 7 HCI Command 0x200c length 2 Connect in progress, sk = 20 Client set connectable status 0x00 HCI Command 0x200c length 2 HCI Command 0x200d length 25 HCI Command 0x2016 length 2 Successfully connected Successfully connected L2CAP Ext-Flowctl Client - Open two sockets - test passed L2CAP Ext-Flowctl Client - Open two sockets - teardown Index Removed callback Index: 0x0000 L2CAP Ext-Flowctl Client - Open two sockets - teardown complete L2CAP Ext-Flowctl Client - Open two sockets - done L2CAP Ext-Flowctl Client - Open two sockets close one - init Read Index List callback Status: 0x00 New hciemu instance created Index Added callback Index: 0x0000 Read Info callback Status: 0x00 Address: 00:AA:01:00:00:00 Version: 0x09 Manufacturer: 0x003f Supported settings: 0x0001be1b Current settings: 0x00000200 Class: 0x000000 Name: Short name: L2CAP Ext-Flowctl Client - Open two sockets close one - setup Powering on controller Controller powered on L2CAP Ext-Flowctl Client - Open two sockets close one - setup complete L2CAP Ext-Flowctl Client - Open two sockets close one - run Connect in progress, sk = 19 (deferred) HCI Command 0x200b length 7 HCI Command 0x200c length 2 Connect in progress, sk = 20 Closing first socket! -1 Client set connectable status 0x00 HCI Command 0x200c length 2 HCI Command 0x200d length 25 HCI Command 0x2016 length 2 Successfully connected L2CAP Ext-Flowctl Client - Open two sockets close one - test passed L2CAP Ext-Flowctl Client - Open two sockets close one - teardown Index Removed callback Index: 0x0000 L2CAP Ext-Flowctl Client - Open two sockets close one - teardown complete L2CAP Ext-Flowctl Client - Open two sockets close one - done Test Summary ------------ L2CAP Ext-Flowctl Client - Success Passed 0.068 seconds L2CAP Ext-Flowctl Client, Direct Advertising - Success Passed 0.023 seconds L2CAP Ext-Flowctl Client SMP - Success Passed 0.027 seconds L2CAP Ext-Flowctl Client - Command Reject Passed 0.046 seconds L2CAP Ext-Flowctl Client - Open two sockets Passed 0.014 seconds L2CAP Ext-Flowctl Client - Open two sockets close one Passed 0.066 seconds Total: 6, Passed: 6 (100.0%), Failed: 0, Not Run: 0 Overall execution time: 0.247 seconds Luiz Augusto von Dentz (3): Bluetooth: L2CAP: Add get_peer_pid callback Bluetooth: L2CAP: Use DEFER_SETUP to group ECRED connections Bluetooth: Add BT_MODE socket option include/net/bluetooth/bluetooth.h | 11 +++ include/net/bluetooth/l2cap.h | 5 ++ net/bluetooth/l2cap_core.c | 136 +++++++++++++++++++++++++++--- net/bluetooth/l2cap_sock.c | 104 +++++++++++++++++++++++ 4 files changed, 246 insertions(+), 10 deletions(-)