app-emulation/virtualbox-guest-additions: patches for kernel 6.8

Apply a few upstream patches.

Closes: https://bugs.gentoo.org/926766
Signed-off-by: Viorel Munteanu <ceamac@gentoo.org>

2 files changed, 537 insertions, 0 deletions

diff --git a/app-emulation/virtualbox-guest-additions/files/virtualbox-guest-additions-7.0.14-kernel-6.8.patch b/app-emulation/virtualbox-guest-additions/files/virtualbox-guest-additions-7.0.14-kernel-6.8.patch
new file mode 100644
index 000000000000..459dbef713e9
--- /dev/null
+++ b/app-emulation/virtualbox-guest-additions/files/virtualbox-guest-additions-7.0.14-kernel-6.8.patch
@@ -0,0 +1,242 @@
+Support for kernel 6.8.x.
+
+https://www.virtualbox.org/changeset/102989/vbox
+https://www.virtualbox.org/changeset/102990/vbox
+https://www.virtualbox.org/changeset/102992/vbox
+https://www.virtualbox.org/changeset/102993/vbox
+https://www.virtualbox.org/changeset/102994/vbox
+
+------------------------------------------------------------------------
+r102989 | vboxsync | 2024-01-22 19:12:25 +0200 (Lu, 22 ian 2024) | 2 lines
+
+iprt: Add wrapper for strlcpy/strscpy functions, bugref:10584.
+
+
+--- a/include/iprt/string.h
++++ b/include/iprt/string.h
+@@ -245,7 +245,29 @@
+ # define RT_BCOPY_UNFORTIFIED(a_pDst, a_pSrc, a_cbToCopy)   memcpy((a_pDst), (a_pSrc), (a_cbToCopy))
+ #endif /* !RT_OS_LINUX && !__KERNEL__ */
+ 
++/** @def RT_STRSCPY
++ * Copy string and NULL-terminate output buffer.
++ *
++ * This macro should mostly be used in Linux kernel code. This is
++ * the replacement for deprecated strlcpy. It was deprecated since 3.16.60
++ * when strscpy was introduced as an alternative. Finally, strlcpy was
++ * completely removed from kernel code in 6.8.0.
++ *
++ * @param   a_pDst          Pointer to the destination string buffer.
++ * @param   a_pSrc          Pointer to the source NULL-terminated string buffer.
++ * @param   a_cbToCopy      Size of destination buffer..
++ */
++#if defined(RT_OS_LINUX) && defined(__KERNEL__)
++# if (RTLNX_VER_MIN(3,16,60))
++#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbToCopy)    strscpy((a_pDst), (a_pSrc), (a_cbToCopy))
++# else /* < 3.16.60 */
++#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbToCopy)    strlcpy((a_pDst), (a_pSrc), (a_cbToCopy))
++# endif
++#else  /* !RT_OS_LINUX && !__KERNEL__ */
++# define RT_STRSCPY(a_pDst, a_pSrc, a_cbToCopy)    strscpy((a_pDst), (a_pSrc), (a_cbToCopy))
++#endif /* !RT_OS_LINUX && !__KERNEL__ */
+ 
++
+ #ifdef IN_RING3
+ 
+ /**
+
+------------------------------------------------------------------------
+------------------------------------------------------------------------
+r102990 | vboxsync | 2024-01-22 19:13:50 +0200 (Lu, 22 ian 2024) | 2 lines
+
+Additions: Linux: Introduce initial support for kernel 6.8, bugref:10584.
+
+
+--- a/src/VBox/Additions/common/VBoxGuest/VBoxGuest-linux.c
++++ b/src/VBox/Additions/common/VBoxGuest/VBoxGuest-linux.c
+@@ -1410,7 +1410,7 @@
+             RTLogGroupSettings(pLogger, pszValue);
+     }
+     else if (pParam->name[0] != 'd')
+-        strlcpy(&g_szLogGrp[0], pszValue, sizeof(g_szLogGrp));
++        RT_STRSCPY(&g_szLogGrp[0], pszValue, sizeof(g_szLogGrp));
+ 
+     return 0;
+ }
+@@ -1436,7 +1436,7 @@
+             RTLogFlags(pLogger, pszValue);
+     }
+     else if (pParam->name[0] != 'd')
+-        strlcpy(&g_szLogFlags[0], pszValue, sizeof(g_szLogFlags));
++        RT_STRSCPY(&g_szLogFlags[0], pszValue, sizeof(g_szLogFlags));
+     return 0;
+ }
+ 
+@@ -1461,7 +1461,7 @@
+             RTLogDestinations(pLogger, pszValue);
+     }
+     else if (pParam->name[0] != 'd')
+-        strlcpy(&g_szLogDst[0], pszValue, sizeof(g_szLogDst));
++        RT_STRSCPY(&g_szLogDst[0], pszValue, sizeof(g_szLogDst));
+     return 0;
+ }
+ 
+--- a/src/VBox/Additions/linux/drm/vbox_drv.h
++++ b/src/VBox/Additions/linux/drm/vbox_drv.h
+@@ -538,9 +538,7 @@
+ int vbox_irq_init(struct vbox_private *vbox);
+ void vbox_irq_fini(struct vbox_private *vbox);
+ void vbox_report_hotplug(struct vbox_private *vbox);
+-#if RTLNX_VER_MAX(5,15,0) && !RTLNX_RHEL_MAJ_PREREQ(9,1) && !RTLNX_SUSE_MAJ_PREREQ(15,5)
+ irqreturn_t vbox_irq_handler(int irq, void *arg);
+-#endif
+ 
+ /* vbox_hgsmi.c */
+ void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
+--- a/src/VBox/Additions/linux/sharedfolders/vfsmod.c
++++ b/src/VBox/Additions/linux/sharedfolders/vfsmod.c
+@@ -1408,7 +1408,7 @@
+     switch (opt) {
+     case Opt_iocharset:
+     case Opt_nls:
+-        strlcpy(info->nls_name, param->string, sizeof(info->nls_name));
++        RT_STRSCPY(info->nls_name, param->string, sizeof(info->nls_name));
+         break;
+     case Opt_uid:
+         info->uid = result.uint_32;
+@@ -1469,7 +1469,7 @@
+             printk(KERN_WARNING "vboxsf: cache mode (%u) is out of range, using default instead.\n", result.uint_32);
+         break;
+     case Opt_tag:
+-        strlcpy(info->szTag, param->string, sizeof(info->szTag));
++        RT_STRSCPY(info->szTag, param->string, sizeof(info->szTag));
+         break;
+     default:
+         return invalf(fc, "Invalid mount option: '%s'", param->key);
+@@ -1528,7 +1528,7 @@
+     }
+ 
+     /* fc->source (the shared folder name) is set after vbsf_init_fs_ctx() */
+-    strlcpy(info->name, fc->source, sizeof(info->name));
++    RT_STRSCPY(info->name, fc->source, sizeof(info->name));
+ 
+ # if RTLNX_VER_MAX(5,3,0)
+     return vfs_get_super(fc, vfs_get_independent_super, vbsf_read_super_aux);
+--- a/src/VBox/Additions/linux/sharedfolders/regops.c
++++ b/src/VBox/Additions/linux/sharedfolders/regops.c
+@@ -3505,7 +3505,7 @@
+ };
+ 
+ /** file_operations::mmap wrapper for logging purposes. */
+-extern int vbsf_reg_mmap(struct file *file, struct vm_area_struct *vma)
++static int vbsf_reg_mmap(struct file *file, struct vm_area_struct *vma)
+ {
+     int rc;
+     SFLOGFLOW(("vbsf_reg_mmap: file=%p vma=%p\n", file, vma));
+@@ -3786,7 +3786,7 @@
+ }
+ 
+ # if RTLNX_VER_MIN(5,19,0) || RTLNX_RHEL_RANGE(9,3, 9,99)
+-int vbsf_write_begin(struct file *file, struct address_space *mapping, loff_t pos,
++static int vbsf_write_begin(struct file *file, struct address_space *mapping, loff_t pos,
+                      unsigned len, struct page **pagep, void **fsdata)
+ {
+     vbsf_write_begin_warn(pos, len, 0);
+@@ -3793,7 +3793,7 @@
+     return simple_write_begin(file, mapping, pos, len, pagep, fsdata);
+ }
+ # else
+-int vbsf_write_begin(struct file *file, struct address_space *mapping, loff_t pos,
++static int vbsf_write_begin(struct file *file, struct address_space *mapping, loff_t pos,
+                      unsigned len, unsigned flags, struct page **pagep, void **fsdata)
+ {
+     vbsf_write_begin_warn(pos, len, flags);
+
+------------------------------------------------------------------------
+------------------------------------------------------------------------
+r102992 | vboxsync | 2024-01-22 19:33:49 +0200 (Lu, 22 ian 2024) | 5 lines
+
+iprt: Add wrapper for strlcpy/strscpy functions, build fix, bugref:10584.
+
+Ignore return code of strscpy() in RT_STRSCPY macro sinse we have no caller
+who is using it. Also rename macro parameter, so it makes more sense.
+
+
+--- a/include/iprt/string.h
++++ b/include/iprt/string.h
+@@ -255,16 +255,16 @@
+  *
+  * @param   a_pDst          Pointer to the destination string buffer.
+  * @param   a_pSrc          Pointer to the source NULL-terminated string buffer.
+- * @param   a_cbToCopy      Size of destination buffer..
++ * @param   a_cbDst         Size of destination buffer.
+  */
+ #if defined(RT_OS_LINUX) && defined(__KERNEL__)
+ # if (RTLNX_VER_MIN(3,16,60))
+-#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbToCopy)    strscpy((a_pDst), (a_pSrc), (a_cbToCopy))
++#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)   (void)strscpy((a_pDst), (a_pSrc), (a_cbDst))
+ # else /* < 3.16.60 */
+-#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbToCopy)    strlcpy((a_pDst), (a_pSrc), (a_cbToCopy))
++#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)   strlcpy((a_pDst), (a_pSrc), (a_cbDst))
+ # endif
+ #else  /* !RT_OS_LINUX && !__KERNEL__ */
+-# define RT_STRSCPY(a_pDst, a_pSrc, a_cbToCopy)    strscpy((a_pDst), (a_pSrc), (a_cbToCopy))
++# define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)    (void)strscpy((a_pDst), (a_pSrc), (a_cbDst))
+ #endif /* !RT_OS_LINUX && !__KERNEL__ */
+ 
+ 
+
+------------------------------------------------------------------------
+r102993 | vboxsync | 2024-01-22 19:41:44 +0200 (Lu, 22 ian 2024) | 5 lines
+
+Add wrapper for strlcpy/strscpy functions, build fix, bugref:10584.
+
+It seem, strscpy was added around 4.3.0. Older kernels probably
+have it as a backport. So, stick to 4.3.0.
+
+
+--- a/include/iprt/string.h
++++ b/include/iprt/string.h
+@@ -258,7 +258,7 @@
+  * @param   a_cbDst         Size of destination buffer.
+  */
+ #if defined(RT_OS_LINUX) && defined(__KERNEL__)
+-# if (RTLNX_VER_MIN(3,16,60))
++# if (RTLNX_VER_MIN(4,3,0))
+ #  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)   (void)strscpy((a_pDst), (a_pSrc), (a_cbDst))
+ # else /* < 3.16.60 */
+ #  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)   strlcpy((a_pDst), (a_pSrc), (a_cbDst))
+
+------------------------------------------------------------------------
+r102994 | vboxsync | 2024-01-22 20:06:29 +0200 (Lu, 22 ian 2024) | 6 lines
+
+iprt: Add wrapper for strlcpy/strscpy functions, build fix, bugref:10584.
+
+Another way around to suppress build error when strscpy return status
+is not used. Also, turn macro into strlcpy for non-Linux systems,
+so for them it will be no change.
+
+
+--- a/include/iprt/string.h
++++ b/include/iprt/string.h
+@@ -259,12 +259,16 @@
+  */
+ #if defined(RT_OS_LINUX) && defined(__KERNEL__)
+ # if (RTLNX_VER_MIN(4,3,0))
+-#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)   (void)strscpy((a_pDst), (a_pSrc), (a_cbDst))
++#  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst) \
++    { \
++      ssize_t _ret; \
++      _ret = strscpy((a_pDst), (a_pSrc), (a_cbDst)); \
++    }
+ # else /* < 3.16.60 */
+ #  define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)   strlcpy((a_pDst), (a_pSrc), (a_cbDst))
+ # endif
+ #else  /* !RT_OS_LINUX && !__KERNEL__ */
+-# define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)    (void)strscpy((a_pDst), (a_pSrc), (a_cbDst))
++# define RT_STRSCPY(a_pDst, a_pSrc, a_cbDst)    strlcpy((a_pDst), (a_pSrc), (a_cbDst))
+ #endif /* !RT_OS_LINUX && !__KERNEL__ */
+ 
+ 
+
+------------------------------------------------------------------------
diff --git a/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-7.0.14-r2.ebuild b/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-7.0.14-r2.ebuild
new file mode 100644
index 000000000000..80b4916cfe74
--- /dev/null
+++ b/app-emulation/virtualbox-guest-additions/virtualbox-guest-additions-7.0.14-r2.ebuild
@@ -0,0 +1,295 @@
+# Copyright 2022-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit edo linux-mod-r1 systemd toolchain-funcs udev
+
+MY_PN="VirtualBox"
+MY_P="${MY_PN}-${PV}"
+
+DESCRIPTION="VirtualBox kernel modules and user-space tools for Gentoo guests"
+HOMEPAGE="https://www.virtualbox.org/"
+SRC_URI="https://download.virtualbox.org/virtualbox/${PV}/${MY_P}.tar.bz2
+	https://gitweb.gentoo.org/proj/virtualbox-patches.git/snapshot/virtualbox-patches-7.0.14.tar.bz2"
+S="${WORKDIR}/${MY_PN}-${PV}"
+
+# Reminder: see the LICENSE related comment in app-emulation/virtualbox-additions ebuild
+LICENSE="GPL-3 LGPL-2.1+ MIT || ( GPL-3 CDDL )"
+SLOT="0/$(ver_cut 1-2)"
+KEYWORDS="~amd64 ~x86"
+IUSE="+dbus gui"
+
+# automount Error: VBoxServiceAutoMountWorker: Group "vboxsf" does not exist
+# TODO: find out what this is, remove comment if obsolete
+
+RDEPEND="
+	acct-group/vboxguest
+	acct-group/vboxsf
+	acct-user/vboxguest
+	sys-libs/pam
+	sys-libs/zlib
+	dbus? ( sys-apps/dbus )
+	gui? (
+		x11-apps/xrandr
+		x11-apps/xrefresh
+		x11-libs/libX11
+		x11-libs/libXext
+		x11-libs/libXmu
+		x11-libs/libXt
+	)
+"
+# some libs here are indirect dependencies, and also needed at compile time.
+# keeping them in DEPEND to avoid warnings from qa-vdb.
+DEPEND="
+	${RDEPEND}
+	gui? (
+		x11-libs/libICE
+		x11-libs/libSM
+		x11-libs/libXau
+		x11-libs/libXdmcp
+		x11-base/xorg-proto
+	)
+"
+BDEPEND="
+	>=dev-lang/yasm-0.6.2
+	>=dev-build/kbuild-0.1.9998.3127
+	sys-devel/bin86
+	sys-power/iasl
+"
+PDEPEND="
+	gui? ( x11-drivers/xf86-video-vboxvideo )
+"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-7.0.8-fix-gcc13.patch
+	"${FILESDIR}"/${PN}-7.0.14-kernel-6.8.patch
+)
+
+DOCS=()	# Don't install the default README file during einstalldocs
+
+VBOX_MOD_SRC_DIR="out/linux.${ARCH}/release/bin/additions/src"
+CONFIG_CHECK="DRM_TTM"
+
+src_prepare() {
+	eapply "${PATCHES[@]}"
+
+	# Remove shipped binaries (kBuild,yasm), see bug #232775
+	rm -r kBuild/bin tools || die
+
+	# Provide kernel sources
+	pushd src/VBox/Additions &>/dev/null || die
+	ebegin "Extracting guest kernel module sources"
+	kmk GuestDrivers-src vboxguest-src vboxsf-src vboxvideo-src &>/dev/null
+	eend $? || die
+	popd &>/dev/null || die
+
+	# PaX fixes (see bug #298988)
+	eapply -d "${VBOX_MOD_SRC_DIR}" -- "${FILESDIR}"/vboxguest-6.1.36-log-use-c99.patch
+
+	# Disable things unused or splitted into separate ebuilds
+	cp "${FILESDIR}/${PN}-5-localconfig" LocalConfig.kmk || die
+	if ! use gui; then
+		echo "VBOX_WITH_X11_ADDITIONS :=" >> LocalConfig.kmk || die
+	fi
+
+	# Remove pointless GCC version check
+	sed -e '/ check_gcc$/d' -i configure || die
+
+	# Respect LDFLAGS (bug #759100)
+	sed -i -e '/TEMPLATE_VBoxR3Exe_LDFLAGS.linux[    ]*=/ s/$/ $(CCLDFLAGS)/' Config.kmk || die
+
+	eapply "${WORKDIR}/virtualbox-patches-7.0.14/patches"
+	eapply_user
+}
+
+src_configure() {
+	tc-export AR CC CXX LD RANLIB
+
+	# Build the user-space tools, warnings are harmless
+	local myconf=(
+		--with-gcc="$(tc-getCC)"
+		--with-g++="$(tc-getCXX)"
+
+		--nofatal
+		--disable-xpcom
+		--disable-sdl-ttf
+		--disable-pulse
+		--disable-alsa
+		$(usev !dbus --disable-dbus)
+		--target-arch=${ARCH}
+		--with-linux="${KV_OUT_DIR}"
+		--build-headless
+	)
+
+	# bug #843437
+	# Respect LDFLAGS (bug #759100)
+	# Cannot use LDFLAGS here because they also get passed to $(LD)
+	cat >> LocalConfig.kmk <<-EOF || die
+		CFLAGS=${CFLAGS}
+		CXXFLAGS=${CXXFLAGS}
+		CCLDFLAGS=${LDFLAGS}
+	EOF
+
+	edo ./configure "${myconf[@]}"
+}
+
+src_compile() {
+	source ./env.sh || die
+
+	# Force kBuild to respect C[XX]FLAGS and MAKEOPTS (bug #178529)
+	MAKEJOBS=$(grep -Eo '(\-j|\-\-jobs)(=?|[[:space:]]*)[[:digit:]]+' <<< ${MAKEOPTS})
+	MAKELOAD=$(grep -Eo '(\-l|\-\-load-average)(=?|[[:space:]]*)[[:digit:]]+' <<< ${MAKEOPTS})
+	MAKEOPTS="${MAKEJOBS} ${MAKELOAD}"
+
+	local myemakeargs=(
+		VBOX_BUILD_PUBLISHER=_Gentoo
+		VBOX_ONLY_ADDITIONS=1
+
+		KBUILD_VERBOSE=2
+
+		AS="$(tc-getCC)"
+		CC="$(tc-getCC)"
+		CXX="$(tc-getCXX)"
+		LD="$(tc-getCC)"
+
+		TOOL_GCC3_CC="$(tc-getCC)"
+		TOOL_GCC3_CXX="$(tc-getCXX)"
+		TOOL_GCC3_LD="$(tc-getCC)"
+		TOOL_GCC3_AS="$(tc-getCC)"
+		TOOL_GCC3_AR="$(tc-getAR)"
+		TOOL_GCC3_OBJCOPY="$(tc-getOBJCOPY)"
+		#TOOL_GCC3_LD_SYSMOD="$(tc-getCC)"
+
+		TOOL_GXX3_CC="$(tc-getCC)"
+		TOOL_GXX3_CXX="$(tc-getCXX)"
+		TOOL_GXX3_LD="$(tc-getCXX)"
+		TOOL_GXX3_AS="$(tc-getCXX)"
+		TOOL_GXX3_AR="$(tc-getAR)"
+		TOOL_GXX3_OBJCOPY="$(tc-getOBJCOPY)"
+		#TOOL_GXX3_LD_SYSMOD="$(tc-getCXX)"
+
+		TOOL_GCC3_CFLAGS="${CFLAGS}"
+		TOOL_GCC3_CXXFLAGS="${CXXFLAGS}"
+		VBOX_GCC_OPT="${CXXFLAGS}"
+		VBOX_NM="$(tc-getNM)"
+		TOOL_YASM_AS=yasm
+	)
+
+	MAKE="kmk" emake "${myemakeargs[@]}"
+
+	# Now creating the kernel modules. We must do this _after_
+	# we compiled the user-space tools as we need two of the
+	# automatically generated header files. (>=3.2.0)
+	# Move this here for bug 836037
+	local modargs=( KERN_DIR="${KV_OUT_DIR}" KERN_VER="${KV_FULL}" )
+	local modlist=( vboxguest vboxsf )
+	use gui && modlist+=( vboxvideo )
+	modlist=( "${modlist[@]/%/=misc:${VBOX_MOD_SRC_DIR}}" )
+	linux-mod-r1_src_compile
+}
+
+src_install() {
+	linux-mod-r1_src_install
+
+	insinto /etc/modprobe.d # 485996
+	newins - vboxsf.conf <<-EOF
+		# modprobe.d configuration file for VBOXSF
+
+		# Internal Aliases - Do not edit
+		# ------------------------------
+		alias fs-vboxsf vboxsf
+	EOF
+
+	cd out/linux.${ARCH}/release/bin/additions || die
+
+	insinto /sbin
+	newins mount.vboxsf mount.vboxsf
+	fperms 4755 /sbin/mount.vboxsf
+
+	if use dbus; then
+		newinitd "${FILESDIR}"/${PN}-8.initd-r1 ${PN}
+	else
+		newinitd <(sed 's/ dbus\>//' "${FILESDIR}"/${PN}-8.initd-r1) ${PN}
+	fi
+
+	insinto /usr/sbin/
+	newins VBoxService vboxguest-service
+	fperms 0755 /usr/sbin/vboxguest-service
+
+	insinto /usr/bin
+	doins VBoxControl
+	fperms 0755 /usr/bin/VBoxControl
+
+	# VBoxClient user service and xrandr wrapper
+	if use gui ; then
+		doins VBoxClient
+		fperms 0755 /usr/bin/VBoxClient
+		doins VBoxDRMClient
+		fperms 4755 /usr/bin/VBoxDRMClient
+
+		pushd "${S}"/src/VBox/Additions/x11/Installer &>/dev/null || die
+		newins 98vboxadd-xclient VBoxClient-all
+		fperms 0755 /usr/bin/VBoxClient-all
+		popd &>/dev/null || die
+	fi
+
+	# udev rule for vboxdrv
+	local udev_rules_dir="/lib/udev/rules.d"
+	dodir ${udev_rules_dir}
+	echo 'KERNEL=="vboxguest", OWNER="vboxguest", GROUP="vboxguest", MODE="0660"' \
+		>> "${ED}/${udev_rules_dir}/60-virtualbox-guest-additions.rules" \
+		|| die
+	echo 'KERNEL=="vboxuser", OWNER="vboxguest", GROUP="vboxguest", MODE="0660"' \
+		>> "${ED}/${udev_rules_dir}/60-virtualbox-guest-additions.rules" \
+		|| die
+
+	# VBoxClient autostart file
+	insinto /etc/xdg/autostart
+	doins "${FILESDIR}"/vboxclient.desktop
+
+	# sample xorg.conf
+	dodoc "${FILESDIR}"/xorg.conf.vbox
+	docompress -x "${ED}"/usr/share/doc/${PF}/xorg.conf.vbox
+
+	systemd_dounit "${FILESDIR}/${PN}.service"
+}
+
+pkg_postinst() {
+	linux-mod-r1_pkg_postinst
+	udev_reload
+	if ! use gui ; then
+		elog "use flag gui is off, enable it to install the"
+		elog "X Window System video driver."
+	fi
+	elog ""
+	elog "Please add users to the \"vboxguest\" group so they can"
+	elog "benefit from seamless mode, auto-resize and clipboard."
+	elog ""
+	elog "The vboxsf group has been added to make automount services work."
+	elog "These services are part of the shared folders support."
+	elog ""
+	elog "Please add:"
+	elog "/etc/init.d/${PN}"
+	elog "to the default runlevel in order to start"
+	elog "needed services."
+	elog "To use the VirtualBox X driver, use the following"
+	elog "file as your /etc/X11/xorg.conf:"
+	elog "    /usr/share/doc/${PF}/xorg.conf.vbox"
+	elog ""
+	elog "An autostart .desktop file has been installed to start"
+	elog "VBoxClient in desktop sessions."
+	elog ""
+	elog "You can mount shared folders with:"
+	elog "    mount -t vboxsf <shared_folder_name> <mount_point>"
+	elog ""
+	elog "Warning:"
+	elog "this ebuild is only needed if you are running gentoo"
+	elog "inside a VirtualBox Virtual Machine, you don't need"
+	elog "it to run VirtualBox itself."
+	elog ""
+}
+
+pkg_postrm() {
+	udev_reload
+}