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https://github.com/brain-hackers/linux-brain.git
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0532a1b0d0
VirtualBox 6.0.x has a new feature where the guest kernel driver passes info about the origin of the request (e.g. userspace or kernelspace) to the hypervisor. If we do not pass this information then when running the 6.0.x userspace guest-additions tools on a 6.0.x host, some requests will get denied with a VERR_VERSION_MISMATCH error, breaking vboxservice.service and the mounting of shared folders marked to be auto-mounted. This commit implements passing the requestor info to the host, fixing this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
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/* Copyright (C) 2006-2016 Oracle Corporation */
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#ifndef __VBOX_UTILS_H__
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#define __VBOX_UTILS_H__
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#include <linux/printk.h>
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#include <linux/vbox_vmmdev_types.h>
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struct vbg_dev;
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/**
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* vboxguest logging functions, these log both to the backdoor and call
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* the equivalent kernel pr_foo function.
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*/
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__printf(1, 2) void vbg_info(const char *fmt, ...);
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__printf(1, 2) void vbg_warn(const char *fmt, ...);
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__printf(1, 2) void vbg_err(const char *fmt, ...);
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/* Only use backdoor logging for non-dynamic debug builds */
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#if defined(DEBUG) && !defined(CONFIG_DYNAMIC_DEBUG)
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__printf(1, 2) void vbg_debug(const char *fmt, ...);
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#else
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#define vbg_debug pr_debug
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#endif
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int vbg_hgcm_connect(struct vbg_dev *gdev, u32 requestor,
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struct vmmdev_hgcm_service_location *loc,
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u32 *client_id, int *vbox_status);
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int vbg_hgcm_disconnect(struct vbg_dev *gdev, u32 requestor,
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u32 client_id, int *vbox_status);
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int vbg_hgcm_call(struct vbg_dev *gdev, u32 requestor, u32 client_id,
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u32 function, u32 timeout_ms,
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struct vmmdev_hgcm_function_parameter *parms, u32 parm_count,
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int *vbox_status);
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/**
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* Convert a VirtualBox status code to a standard Linux kernel return value.
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* Return: 0 or negative errno value.
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* @rc: VirtualBox status code to convert.
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*/
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int vbg_status_code_to_errno(int rc);
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/**
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* Helper for the vboxsf driver to get a reference to the guest device.
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* Return: a pointer to the gdev; or a ERR_PTR value on error.
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*/
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struct vbg_dev *vbg_get_gdev(void);
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/**
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* Helper for the vboxsf driver to put a guest device reference.
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* @gdev: Reference returned by vbg_get_gdev to put.
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*/
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void vbg_put_gdev(struct vbg_dev *gdev);
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#endif
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