-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 24.12.2015 09:21, Andrei Borzenkov wrote: > On Wed, Dec 23, 2015 at 11:54 PM, Robin Schneider <[email protected]> wrote: >> Thanks for the input. I agree that my first patch was probably a bit to >> flexible. I attached a updated patch. >> > > I'm still unsure what problem it tries to solve and whether it solves > problem it intends to solve. > > So you say > >> Useful for changing the default access level for menu entries when using >> GRUBs password protection feature. > > a) This does not change any "access level" whatever it means. It only > changes what icon is displayed for menu entry.
> b) it is all or nothing. The first found icon is used so either all
> menu entries are displayed with "need authentication" or none.
>
> c) if it is all or nothing then the same can trivially be implemented
> by replacing one set of icons ("unlocked") with another set of icons
> ("locked") during bootloader reconfiguration. This should be done by
> tool you use to configure bootloader, grub-mkconfig has no knowledge
> about access restrictions anyway.
>
> So either it is trivially implemented without any need to change
> grub-mkconfig or it does not solve the problem anyway.
>
> But idea itself is actually interesting. Icon manager in grub could
> select different icon if menu entry requires authentication. Or it
> could display overlay (which is probably better). And it actually can
> dynamically decide whether to display this overlay depending on
> whether user is already authenticated.
>
> How does it sound?
>
> P.S. current situation with grub-mkconfig I do not like at all. It
> became de-facto standard tool to configure GRUB by distributions but
> it does not provide any sane way to differentiate between distribution
> default vs. local admin configuration. And variables you propose sound
> exactly like the type that will hit this confusion. We need to solve
> this before.
I am sorry for the misunderstanding. I should have explained the indention
behind my patch a bit better then just linking to another patch which makes use
of the newly introduced variables by this patch.
My indented use case is to allow to add options like '--unrestricted' or
'--users "Jane"' to each menuentry generated by grub-mkconfig without altering
the scripts itself. Although the scripts end up under /etc in Debian, I did not
think that changing these files (and `dpkg-divert`ing them) would be such a good
idea. I have been searching for how to configure password protection and I did
only find "hacks" which either suggest to edit the grub config under /boot/grub
(which is totally outdated because the configurations is automatically generated
in Debian) or change the "CLASS" variable in the grub.d scripts [12]0_.*
scripts. So I did go with the later option. Patching these scripts with
configuration management was not ideal so I decided to propose this patch
upstream. With this patch in place it will be possible to configure this in
/etc/default/grub without touching the scripts.
This patch addresses the issue which is mentioned in this article (At least when
the assumption is true that all menuentry of the same distribution should get
the same restrictions/options):
https://help.ubuntu.com/community/Grub2/Passwords#Protecting_Menuentries
"There is currently no automated method of adding users or designating menu
items to be protected. The user must manually edit the GRUB 2 scripts."
Thanks for the second review. You are right, adding this to the CLASS variable
(and also the naming) was not ideal. I attached an updated patch which should
address these issues. This patch should also allow to overwrite icon files
because the variable is placed before the CLASS variable.
BTW: The efi menuentry has the class 'windows'. Is that correct? My patch
assumes that this menuentry is indented for UEFI applications.
- --
Live long and prosper
Robin `ypid` Schneider
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>From 058e95249c7ab92e8fecfc2f3938600abd58eecd Mon Sep 17 00:00:00 2001 From: Robin Schneider <[email protected]> Date: Sat, 26 Dec 2015 21:53:30 +0100 Subject: [PATCH] Added GRUB_*_MENUENTRY_OPTIONS variables to configure menu entries. Useful for making each menuentry '--unrestricted' when using GRUBs password protection feature. Ansible role which makes use of this patch: https://github.com/debops/ansible-grub/pull/7 My indented use case is to allow to add options like '--unrestricted' or '--users "Jane"' to each menuentry generated by grub-mkconfig without altering the scripts itself. Although the scripts end up under /etc in Debian, I did not think that changing these files (and `dpkg-divert`ing them) would be such a good idea. I have been searching for how to configure password protection and I did only find "hacks" which either suggest to edit the grub config under /boot/grub (which is totally outdated because the configurations is automatically generated in Debian) or change the "CLASS" variable in the grub.d scripts [12]0_.* scripts. So I did go with the later option. Patching these scripts with configuration management was not ideal so I decided to propose this patch upstream. With this patch in place it will be possible to configure this in /etc/default/grub without touching the scripts. This patch addresses the issue which is mentioned in this article (At least when the assumption is true that all menuentry of the same distribution should get the same restrictions/options): https://help.ubuntu.com/community/Grub2/Passwords#Protecting_Menuentries "There is currently no automated method of adding users or designating menu items to be protected. The user must manually edit the GRUB 2 scripts." --- util/grub-mkconfig.in | 13 ++++++++++++- util/grub.d/10_hurd.in | 4 ++-- util/grub.d/10_illumos.in | 2 +- util/grub.d/10_kfreebsd.in | 4 ++-- util/grub.d/10_linux.in | 4 ++-- util/grub.d/10_netbsd.in | 4 ++-- util/grub.d/10_windows.in | 2 +- util/grub.d/10_xnu.in | 2 +- util/grub.d/20_linux_xen.in | 4 ++-- util/grub.d/30_os-prober.in | 14 +++++++------- 10 files changed, 32 insertions(+), 21 deletions(-) diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in index 3183744..d7fdd78 100644 --- a/util/grub-mkconfig.in +++ b/util/grub-mkconfig.in @@ -227,7 +227,18 @@ export GRUB_DEFAULT \ GRUB_ENABLE_CRYPTODISK \ GRUB_BADRAM \ GRUB_OS_PROBER_SKIP_LIST \ - GRUB_DISABLE_SUBMENU + GRUB_DISABLE_SUBMENU \ + GRUB_HURD_MENUENTRY_OPTIONS \ + GRUB_ILLUMOS_MENUENTRY_OPTIONS \ + GRUB_KFREEBSD_MENUENTRY_OPTIONS \ + GRUB_LINUX_MENUENTRY_OPTIONS \ + GRUB_NETBSD_MENUENTRY_OPTIONS \ + GRUB_WINDOWS_MENUENTRY_OPTIONS \ + GRUB_XNU_MENUENTRY_OPTIONS \ + GRUB_XEN_MENUENTRY_OPTIONS \ + GRUB_MINIX_MENUENTRY_OPTIONS \ + GRUB_OSX_MENUENTRY_OPTIONS \ + GRUB_EFI_MENUENTRY_OPTIONS if test "x${grub_cfg}" != "x"; then rm -f "${grub_cfg}.new" diff --git a/util/grub.d/10_hurd.in b/util/grub.d/10_hurd.in index 59a9a48..c07fbfd 100644 --- a/util/grub.d/10_hurd.in +++ b/util/grub.d/10_hurd.in @@ -100,11 +100,11 @@ hurd_entry () { grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "gnuhurd-advanced-$boot_device_id>'gnuhurd-$kernel-$type-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")'")" fi sed "s/^/$submenu_indentation/" << EOF -menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnuhurd-$kernel-$type-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")' { +menuentry '$(echo "$title" | grub_quote)' ${GRUB_HURD_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'gnuhurd-$kernel-$type-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")' { EOF else sed "s/^/$submenu_indentation/" << EOF -menuentry '$(echo "$OS" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnuhurd-simple-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")' { +menuentry '$(echo "$OS" | grub_quote)' ${GRUB_HURD_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'gnuhurd-simple-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")' { EOF fi diff --git a/util/grub.d/10_illumos.in b/util/grub.d/10_illumos.in index a133e1b..76a5043 100644 --- a/util/grub.d/10_illumos.in +++ b/util/grub.d/10_illumos.in @@ -34,7 +34,7 @@ case "${GRUB_DISTRIBUTOR}" in ;; esac -echo "menuentry '$(echo "$OS" | grub_quote)' ${CLASS} \$menuentry_id_option 'illumos-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")' {" +echo "menuentry '$(echo "$OS" | grub_quote)' ${GRUB_ILLUMOS_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'illumos-$(grub_get_device_id "${GRUB_DEVICE_BOOT}")' {" save_default_entry | grub_add_tab prepare_grub_to_access_device "${GRUB_DEVICE_BOOT}" | grub_add_tab message="$(gettext_printf "Loading kernel of Illumos ...")" diff --git a/util/grub.d/10_kfreebsd.in b/util/grub.d/10_kfreebsd.in index 9d8e8fd..79005ed 100644 --- a/util/grub.d/10_kfreebsd.in +++ b/util/grub.d/10_kfreebsd.in @@ -86,9 +86,9 @@ kfreebsd_entry () title_correction_code="${title_correction_code}if [ \"x\$default\" = '$quoted' ]; then default='$(echo "$replacement_title" | grub_quote)'; fi;" grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "kfreebsd-advanced-$boot_device_id>kfreebsd-$version-$type-$boot_device_id")" fi - echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'kfreebsd-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$title" | grub_quote)' ${GRUB_KFREEBSD_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'kfreebsd-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" else - echo "menuentry '$(echo "$OS" | grub_quote)' ${CLASS} \$menuentry_id_option 'kfreebsd-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$OS" | grub_quote)' ${GRUB_KFREEBSD_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'kfreebsd-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" fi if [ x$type != xrecovery ] ; then save_default_entry | grub_add_tab | sed "s/^/$submenu_indentation/" diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in index 859b608..3fa8fb0 100644 --- a/util/grub.d/10_linux.in +++ b/util/grub.d/10_linux.in @@ -90,9 +90,9 @@ linux_entry () title_correction_code="${title_correction_code}if [ \"x\$default\" = '$quoted' ]; then default='$(echo "$replacement_title" | grub_quote)'; fi;" grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "gnulinux-advanced-$boot_device_id>gnulinux-$version-$type-$boot_device_id")" fi - echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$title" | grub_quote)' ${GRUB_LINUX_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" else - echo "menuentry '$(echo "$os" | grub_quote)' ${CLASS} \$menuentry_id_option 'gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$os" | grub_quote)' ${GRUB_LINUX_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" fi if [ x$type != xrecovery ] ; then save_default_entry | grub_add_tab diff --git a/util/grub.d/10_netbsd.in b/util/grub.d/10_netbsd.in index 874f599..ed93123 100644 --- a/util/grub.d/10_netbsd.in +++ b/util/grub.d/10_netbsd.in @@ -113,9 +113,9 @@ netbsd_entry () grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "netbsd-advanced-$boot_device_id>netbsd-${loader}-$kernel-$type-$boot_device_id")" fi - echo "menuentry '$(echo "$title" | grub_quote)' \$menuentry_id_option 'netbsd-${loader}-$kernel-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$title" | grub_quote)' ${GRUB_NETBSD_MENUENTRY_OPTIONS} \$menuentry_id_option 'netbsd-${loader}-$kernel-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" else - echo "menuentry '$(echo "$OS" | grub_quote)' \$menuentry_id_option 'netbsd-${loader}-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$OS" | grub_quote)' ${GRUB_NETBSD_MENUENTRY_OPTIONS} \$menuentry_id_option 'netbsd-${loader}-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" fi printf "%s\n" "${prepare_boot_cache}" | sed "s/^/$submenu_indentation/" diff --git a/util/grub.d/10_windows.in b/util/grub.d/10_windows.in index 554c561..d766bd3 100644 --- a/util/grub.d/10_windows.in +++ b/util/grub.d/10_windows.in @@ -84,7 +84,7 @@ for drv in $drives ; do gettext_printf "Found %s on %s (%s)\n" "$OS" "$drv" "$dev" >&2 cat << EOF -menuentry '$(echo "$OS" | grub_quote)' \$menuentry_id_option '$osid-$(grub_get_device_id "${dev}")' { +menuentry '$(echo "$OS" | grub_quote)' ${GRUB_WINDOWS_MENUENTRY_OPTIONS} \$menuentry_id_option '$osid-$(grub_get_device_id "${dev}")' { EOF save_default_entry | sed -e 's,^,$grub_tab,' diff --git a/util/grub.d/10_xnu.in b/util/grub.d/10_xnu.in index 51ee2f4..c122933 100644 --- a/util/grub.d/10_xnu.in +++ b/util/grub.d/10_xnu.in @@ -37,7 +37,7 @@ osx_entry() { # TRANSLATORS: it refers on the OS residing on device %s onstr="$(gettext_printf "(on %s)" "${GRUB_DEVICE}")" cat << EOF -menuentry '$(echo "Darwin/Mac OS X $bitstr $onstr" | grub_quote)' --class osx --class darwin --class os \$menuentry_id_option 'osprober-xnu-$2-$(grub_get_device_id "${GRUB_DEVICE}")' { +menuentry '$(echo "Darwin/Mac OS X $bitstr $onstr" | grub_quote)' ${GRUB_XNU_MENUENTRY_OPTIONS} --class osx --class darwin --class os \$menuentry_id_option 'osprober-xnu-$2-$(grub_get_device_id "${GRUB_DEVICE}")' { EOF save_default_entry | grub_add_tab prepare_grub_to_access_device ${GRUB_DEVICE} | grub_add_tab diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in index f532fb9..7b78ff1 100644 --- a/util/grub.d/20_linux_xen.in +++ b/util/grub.d/20_linux_xen.in @@ -98,10 +98,10 @@ linux_entry () title_correction_code="${title_correction_code}if [ \"x\$default\" = '$quoted' ]; then default='$(echo "$replacement_title" | grub_quote)'; fi;" grub_warn "$(gettext_printf "Please don't use old title \`%s' for GRUB_DEFAULT, use \`%s' (for versions before 2.00) or \`%s' (for 2.00 or later)" "$GRUB_ACTUAL_DEFAULT" "$replacement_title" "gnulinux-advanced-$boot_device_id>gnulinux-$version-$type-$boot_device_id")" fi - echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'xen-gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$title" | grub_quote)' ${GRUB_XEN_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'xen-gnulinux-$version-$type-$boot_device_id' {" | sed "s/^/$submenu_indentation/" else title="$(gettext_printf "%s, with Xen hypervisor" "${os}")" - echo "menuentry '$(echo "$title" | grub_quote)' ${CLASS} \$menuentry_id_option 'xen-gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" + echo "menuentry '$(echo "$title" | grub_quote)' ${GRUB_XEN_MENUENTRY_OPTIONS} ${CLASS} \$menuentry_id_option 'xen-gnulinux-simple-$boot_device_id' {" | sed "s/^/$submenu_indentation/" fi if [ x$type != xrecovery ] ; then save_default_entry | grub_add_tab | sed "s/^/$submenu_indentation/" diff --git a/util/grub.d/30_os-prober.in b/util/grub.d/30_os-prober.in index 5fc4f0c..e65e2f1 100644 --- a/util/grub.d/30_os-prober.in +++ b/util/grub.d/30_os-prober.in @@ -52,7 +52,7 @@ osx_entry() { # TRANSLATORS: it refers on the OS residing on device %s onstr="$(gettext_printf "(on %s)" "${DEVICE}")" cat << EOF -menuentry '$(echo "${LONGNAME} $bitstr $onstr" | grub_quote)' --class osx --class darwin --class os \$menuentry_id_option 'osprober-xnu-$2-$(grub_get_device_id "${DEVICE}")' { +menuentry '$(echo "${LONGNAME} $bitstr $onstr" | grub_quote)' ${GRUB_OSX_MENUENTRY_OPTIONS} --class osx --class darwin --class os \$menuentry_id_option 'osprober-xnu-$2-$(grub_get_device_id "${DEVICE}")' { EOF save_default_entry | grub_add_tab prepare_grub_to_access_device ${DEVICE} | grub_add_tab @@ -142,7 +142,7 @@ for OS in ${OSPROBED} ; do onstr="$(gettext_printf "(on %s)" "${DEVICE}")" cat << EOF -menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' --class windows --class os \$menuentry_id_option 'osprober-chain-$(grub_get_device_id "${DEVICE}")' { +menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' ${GRUB_WINDOWS_MENUENTRY_OPTIONS} --class windows --class os \$menuentry_id_option 'osprober-chain-$(grub_get_device_id "${DEVICE}")' { EOF save_default_entry | grub_add_tab prepare_grub_to_access_device ${DEVICE} | grub_add_tab @@ -174,7 +174,7 @@ EOF DEVICE=${DEVICE%@*} onstr="$(gettext_printf "(on %s)" "${DEVICE}")" cat << EOF -menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' --class windows --class os \$menuentry_id_option 'osprober-efi-$(grub_get_device_id "${DEVICE}")' { +menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' ${GRUB_EFI_MENUENTRY_OPTIONS} --class windows --class os \$menuentry_id_option 'osprober-efi-$(grub_get_device_id "${DEVICE}")' { EOF save_default_entry | sed -e "s/^/\t/" prepare_grub_to_access_device ${DEVICE} | sed -e "s/^/\t/" @@ -230,7 +230,7 @@ EOF if [ "x$is_top_level" = xtrue ] && [ "x${GRUB_DISABLE_SUBMENU}" != xy ]; then cat << EOF -menuentry '$(echo "$OS $onstr" | grub_quote)' --class gnu-linux --class gnu --class os \$menuentry_id_option 'osprober-gnulinux-simple-$boot_device_id' { +menuentry '$(echo "$OS $onstr" | grub_quote)' ${GRUB_LINUX_MENUENTRY_OPTIONS} --class gnu-linux --class gnu --class os \$menuentry_id_option 'osprober-gnulinux-simple-$boot_device_id' { EOF save_default_entry | grub_add_tab printf '%s\n' "${prepare_boot_cache}" @@ -250,7 +250,7 @@ EOF fi title="${LLABEL} $onstr" cat << EOF - menuentry '$(echo "$title" | grub_quote)' --class gnu-linux --class gnu --class os \$menuentry_id_option 'osprober-gnulinux-$LKERNEL-${recovery_params}-$boot_device_id' { + menuentry '$(echo "$title" | grub_quote)' ${GRUB_LINUX_MENUENTRY_OPTIONS} --class gnu-linux --class gnu --class os \$menuentry_id_option 'osprober-gnulinux-$LKERNEL-${recovery_params}-$boot_device_id' { EOF save_default_entry | sed -e "s/^/$grub_tab$grub_tab/" printf '%s\n' "${prepare_boot_cache}" | grub_add_tab @@ -287,7 +287,7 @@ EOF hurd) onstr="$(gettext_printf "(on %s)" "${DEVICE}")" cat << EOF -menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' --class hurd --class gnu --class os \$menuentry_id_option 'osprober-gnuhurd-/boot/gnumach.gz-false-$(grub_get_device_id "${DEVICE}")' { +menuentry '$(echo "${LONGNAME} $onstr" | grub_quote)' ${GRUB_HURD_MENUENTRY_OPTIONS} --class hurd --class gnu --class os \$menuentry_id_option 'osprober-gnuhurd-/boot/gnumach.gz-false-$(grub_get_device_id "${DEVICE}")' { EOF save_default_entry | grub_add_tab prepare_grub_to_access_device ${DEVICE} | grub_add_tab @@ -312,7 +312,7 @@ EOF ;; minix) cat << EOF -menuentry "${LONGNAME} (on ${DEVICE}, Multiboot)" { +menuentry "${LONGNAME} (on ${DEVICE}, Multiboot)" ${GRUB_MINIX_MENUENTRY_OPTIONS} { EOF save_default_entry | sed -e "s/^/\t/" prepare_grub_to_access_device ${DEVICE} | sed -e "s/^/\t/" -- 2.1.4
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