From patchwork Wed Mar 27 05:37:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Youwan Wang X-Patchwork-Id: 13605575 Received: from mail.nfschina.com (unknown [42.101.60.195]) by smtp.subspace.kernel.org (Postfix) with SMTP id 7D451171AB for ; Wed, 27 Mar 2024 05:37:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=42.101.60.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711517867; cv=none; b=dKk1Mq6a711smx2TbzKNYhtDqFeG16F1lKgtGF6uTp4y+CQJa6MY+4a/wloxILvHXa0lTL3OSacc5X/Qks8FwxJK32sTpvp4zjyk88/AscwMAH5ueQVpXX9oawFxWo5uK35EjHmjqyeBV2KdO06KrZwzXGvCQiXcpS/IaAnUeRU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711517867; c=relaxed/simple; bh=gtm8BGORa9SgzNXPmiKv0BKdinWaLzMbYu6W/Z+O5WM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=P9iUP99AhLwUK+RMU8b+p9pjWRBECCAmj6UJJhYILITYETThFLGpHtbGkakUCK4ElvxzSA8tohyHhdFQ19w6FM3VGx6DvZk4JXuKhew2JJqMMOCxWAWTOhe3TlwkHxn1dQl/wLq2/NXHtvbF/C3Acds2+ki5M3rpzk3mKFdXt7E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nfschina.com; spf=pass smtp.mailfrom=nfschina.com; arc=none smtp.client-ip=42.101.60.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nfschina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nfschina.com Received: from localhost.localdomain (unknown [103.163.180.46]) by mail.nfschina.com (Maildata Gateway V2.8.8) with ESMTPA id 0A5556048941B; Wed, 27 Mar 2024 13:37:21 +0800 (CST) X-MD-Sfrom: youwan@nfschina.com X-MD-SrcIP: 103.163.180.46 From: Youwan Wang To: linux-bluetooth@vger.kernel.org Cc: Youwan Wang Subject: [BlueZ,v1] obexd: Fix "Size" use g_dbus_emit_property_changed_full() to emit Date: Wed, 27 Mar 2024 13:37:12 +0800 Message-Id: <20240327053712.578023-1-youwan@nfschina.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This is the comment for g_dbus_emit_property_changed() /* * Note that when multiple properties for a given object path are changed * in the same mainloop iteration, they will be grouped with the last * property changed. If this behaviour is undesired, use * g_dbus_emit_property_changed_full() with the * G_DBUS_PROPERTY_CHANGED_FLAG_FLUSH flag, causing the signal to ignore * any grouping. */ When receiving a "small file" through Bluetooth, When using Blueman to transfer files to the configured directory, "small files" in the cache will not be moved to the configured directory. Debugging found that the three properties "Size" "Transferred" and "complete" were reported at once through the g_dbus_emit_property_changed function, but the "Size" property did not have a value, it appears that there are the following errors "UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb5 in position 0: invalid start byte" in Blueman log. So let the "Size" property use g_dbus_emit_property_changed_full to single emit, if use g_dbus_emit_property_changed（grouped）to emit, there is a possibility that "Size" property value has been freed The following is the issue log dbus-monitor log: signal time=1710900297.140618 sender=:1.50 -> destination=(null) serial=59 path=/org/bluez/obex/server/session4/transfer3; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged string "org.bluez.obex.Transfer1" array [ dict entry( string "Status" variant string "complete" ) dict entry( string "Transferred" variant uint64 0 ) ] array [ string "Size" ] method call time=1710900297.141361 sender=:1.39 -> destination=:1.50 serial=417 path=/org/bluez/obex/server/session4/transfer3; interface=org.freedesktop.DBus.Properties; member=Get string "org.bluez.obex.Transfer1" string "Size" error time=1710900297.141596 sender=:1.50 -> destination=:1.39 error_name=org.freedesktop.DBus.Error.InvalidArgs reply_serial=417 string "No such property 'Size'" blueman log blueman.desktop[2368]: blueman-applet 09.42.04 DEBUG Transfer:25 do_g_properties_changed: /org/bluez/obex/server/session2/ transfer1 Transferred 0 blueman.desktop[2368]: blueman-applet 09.42.04 DEBUG Base:74 do_g_properties_changed: /org/bluez/obex/server/session2 {'Source': 'xxx', 'Destination': 'xxx', 'Root': 'xxx/.cache/obexd'} blueman.desktop[2368]: blueman-applet 09.42.04 ERROR TransferService:97 _authorize_push: Failed to get StatusIcon blueman.desktop[2368]: blueman-applet 09.42.15 INFO Notification:239 do_g_signal: accept blueman.desktop[2368]: blueman-applet 09.42.15 INFO TransferService:57 on_action : Action accept blueman.desktop[2368]: blueman-applet 09.42.15 INFO Notification:239 do_g_signal: 3 blueman.desktop[2368]: blueman-applet 09.42.15 DEBUG Notification:247 do_g_signal: The notification was closed by a call to CloseNotification. blueman.desktop[2368]:UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb5 in position 0: invalid start byte blueman.desktop[2368]: blueman-applet 09.42.15 INFO Manager:73 _on_object_removed: /org/bluez/obex/server/session2/transfer1 blueman.desktop[2368]: blueman-applet 09.42.15 INFO Manager:80 _on_object_removed: /org/bluez/obex/server/session2 After fix, The following log dbus-monitor log: signal time=1711000976.672383 sender=:1.724 -> destination=(null) serial=18 path=/org/bluez/obex/server/session1/transfer0; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged string "org.bluez.obex.Transfer1" array [ dict entry( string "Size" variant uint64 50 ) ] array [ ] signal time=1711000976.672483 sender=:1.724 -> destination=(null) serial=19 path=/org/bluez/obex/server/session1/transfer0; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged string "org.bluez.obex.Transfer1" array [ dict entry( string "Status" variant string "complete" ) dict entry( string "Transferred" variant uint64 0 ) ] array [ ] blueman log blueman.desktop[2368]: blueman-applet 14.13.29 DEBUG Transfer:25 do_g_properties_changed: /org/bluez/obex/server/session2/ transfer1 Transferred 0 blueman.desktop[2368]: blueman-applet 14.13.29 DEBUG Base:74 do_g_properties_changed: /org/bluez/obex/server/session2 {'Source': 'xxx', 'Destination': 'xxx', 'Root': 'xxx'} blueman.desktop[2368]: blueman-applet 14.13.29 ERROR TransferService:97 _authorize_push: Failed to get StatusIcon blueman.desktop[2368]: blueman-applet 14.13.36 INFO Notification:239 do_g_signal: accept blueman.desktop[2368]: blueman-applet 14.13.36 INFO TransferService:57 on_action : Action accept blueman.desktop[2368]: blueman-applet 14.13.36 INFO Notification:239 do_g_signal: 3 blueman.desktop[2368]: blueman-applet 14.13.36 DEBUG Notification:247 do_g_signal: The notification was closed by a call to CloseNotification. blueman.desktop[2368]: blueman-applet 14.13.36 DEBUG Transfer:25 do_g_properties_changed: /org/bluez/obex/server/session2/ transfer1 Size 50 blueman.desktop[2368]: blueman-applet 14.13.36 DEBUG Transfer:25 do_g_properties_changed: /org/bluez/obex/server/session2/ transfer1 Status complete blueman.desktop[2368]: blueman-applet 14.13.36 INFO Manager:86 _on_transfer_completed: /org/bluez/obex/server/session2/ transfer1 True blueman.desktop[2368]: blueman-applet 14.13.36 INFO TransferService:275 _on_transfer_completed: Destination file exists, renaming to: xxx.txt blueman.desktop[2368]: blueman-applet 14.13.36 ERROR TransferService:256 _notify_kwargs: No statusicon found blueman.desktop[2368]: blueman-applet 14.13.36 INFO TransferService:241 _add_open : adding action blueman.desktop[2368]: blueman-applet 14.13.36 DEBUG Transfer:25 do_g_properties_changed: /org/bluez/obex/server/session2/ transfer1 Transferred 0 blueman.desktop[2368]: blueman-applet 14.13.36 INFO Manager:73 _on_object_removed: /org/bluez/obex/server/session2/transfer1 blueman.desktop[2368]: blueman-applet 14.13.36 INFO Manager:80 _on_object_removed: /org/bluez/obex/server/session2 Signed-off-by: Youwan Wang --- obexd/src/manager.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/obexd/src/manager.c b/obexd/src/manager.c index c393911a7..3c0c2a7cc 100644 --- a/obexd/src/manager.c +++ b/obexd/src/manager.c @@ -528,8 +528,13 @@ void manager_emit_transfer_property(struct obex_transfer *transfer, if (transfer->path == NULL) return; - g_dbus_emit_property_changed(connection, transfer->path, - TRANSFER_INTERFACE, name); + if (strcasecmp("Size", name) == 0) + g_dbus_emit_property_changed_full(connection, transfer->path, + TRANSFER_INTERFACE, name, + G_DBUS_PROPERTY_CHANGED_FLAG_FLUSH); + else + g_dbus_emit_property_changed(connection, transfer->path, + TRANSFER_INTERFACE, name); } void manager_emit_transfer_started(struct obex_transfer *transfer)