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linux/tools/usb/usbip/libsrc/usbip_device_driver.c

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19 15:51:43 +02:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
tools: usb: usbip_device_driver: prefer 'unsigned int' to 'unsigned' Fixup a coding style issue Signed-off-by: Elad Wexler <elad.wexler@gmail.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-30 18:11:51 +02:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
usbip: tools: Fix read_usb_vudc_device() error path handling This isn't really accurate right. fread() doesn't always return 0 in error. It could return < number of elements and set errno. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20191018032223.4644-1-gy741.kim@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-18 03:22:23 +00:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
usbip: tools: Fix read_usb_vudc_device() error path handling This isn't really accurate right. fread() doesn't always return 0 in error. It could return < number of elements and set errno. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20191018032223.4644-1-gy741.kim@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-18 03:22:23 +00:00
tools: usb: usbip: fix fd leak in case of 'fread' failure Fix possible resource leak: fd Signed-off-by: Elad Wexler <elad.wexler@gmail.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-30 18:01:39 +02:00
usbip: tools: Fix read_usb_vudc_device() error path handling This isn't really accurate right. fread() doesn't always return 0 in error. It could return < number of elements and set errno. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20191018032223.4644-1-gy741.kim@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-18 03:22:23 +00:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
usbip: tools: fix GCC8 warning for strncpy GCC8 started emitting warning about using strncpy with number of bytes exactly equal destination size which could lead to non-zero terminated string being copied. Use "SYSFS_PATH_MAX - 1" & "SYSFS_BUS_ID_SIZE - 1" as number of bytes to ensure name is always zero-terminated. Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20190725132209.GA27590@jerryopenix Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-25 21:22:09 +08:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
usbip: tools: fix GCC8 warning for strncpy GCC8 started emitting warning about using strncpy with number of bytes exactly equal destination size which could lead to non-zero terminated string being copied. Use "SYSFS_PATH_MAX - 1" & "SYSFS_BUS_ID_SIZE - 1" as number of bytes to ensure name is always zero-terminated. Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20190725132209.GA27590@jerryopenix Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-25 21:22:09 +08:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
tools: usb: usbip: fix fd leak in case of 'fread' failure Fix possible resource leak: fd Signed-off-by: Elad Wexler <elad.wexler@gmail.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-30 18:01:39 +02:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00
usbip: tools: add hint when no exported devices are found When refresh_exported_devices() finds no devices, it's helpful to inform users about potential causes. This could be due to: 1. The usbip driver module is not loaded. 2. No devices have been exported yet. Add an informational message to guide users when ndevs == 0. Also update the condition in usbip_host_driver_open() and usbip_device_driver_open() to check both ret and ndevs == 0, and change err() to info(). Message visibility by scenario: - usbipd (console mode): Show on console/serial, this allows instant visibility for debugging. - usbipd -D (daemon mode): Message logged to syslog, can keep logs for later traceability in production. Also can use "journalctl -f" to trace on console. Suggested-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://patch.msgid.link/20260402083204.53179-1-min_halo@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-02 16:32:04 +08:00
usbip: tools: Add vudc backend to usbip tools Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-08 21:49:05 +01:00