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bootloader: add rEFInd and systemd-boot 

Add EFI bootloaders rEFInd and systemd-boot. Boot tools which manage
bootloader files in UEFI (DOS) partition need also to manage UEFI boot
variables in efivarfs. Bootctl (systemd-boot tool) verifies the type
of EFI file system and needs to mmap() the files.

Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
This commit is contained in:
Topi Miettinen 2020-04-25 12:41:18 +03:00
parent 841cce42e8
commit eae4ecde22
No known key found for this signature in database
GPG Key ID: 87E1A51C590B0577
3 changed files with 52 additions and 0 deletions
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8
policy/modules/admin/bootloader.fc
View File

@ -2,20 +2,28 @@
/etc/lilo\.conf.* -- gen_context(system_u:object_r:bootloader_etc_t,s0)
/etc/yaboot\.conf.* -- gen_context(system_u:object_r:bootloader_etc_t,s0)
/usr/bin/bootctl -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/grub -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/grub2?-bios-setup -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/grub2?-install -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/grub2?-mkconfig -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/grub2?-probe -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/lilo.* -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/mkrlconf -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/mvrefind -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/refind-install -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/bin/ybin.* -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/bootctl -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/grub -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/grub2?-bios-setup -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/grub2?-install -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/grub2?-mkconfig -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/grub2?-probe -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/lilo.* -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/mkrlconf -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/mvrefind -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/refind-install -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/usr/sbin/ybin.* -- gen_context(system_u:object_r:bootloader_exec_t,s0)
/var/lib/os-prober(/.*)? gen_context(system_u:object_r:bootloader_tmp_t,s0)

5
policy/modules/admin/bootloader.te
View File

@ -86,10 +86,12 @@ dev_read_sysfs(bootloader_t)
dev_rw_nvram(bootloader_t)
fs_getattr_xattr_fs(bootloader_t)
fs_getattr_dos_fs(bootloader_t)
fs_getattr_tmpfs(bootloader_t)
fs_read_tmpfs_symlinks(bootloader_t)
#Needed for EFI
fs_manage_dos_files(bootloader_t)
fs_mmap_read_dos_files(bootloader_t)
mls_file_read_all_levels(bootloader_t)
mls_file_write_all_levels(bootloader_t)
@ -120,6 +122,9 @@ files_manage_etc_runtime_files(bootloader_t)
files_etc_filetrans_etc_runtime(bootloader_t, file)
files_dontaudit_search_home(bootloader_t)
fs_list_efivars(bootloader_t)
fs_manage_efivarfs_files(bootloader_t)
fs_list_hugetlbfs(bootloader_t)
fs_mount_fusefs(bootloader_t)
fs_mount_xattr_fs(bootloader_t)

39
policy/modules/kernel/filesystem.if
View File

@ -1982,6 +1982,25 @@ interface(`fs_read_dos_files',`
read_files_pattern($1, dosfs_t, dosfs_t)
')
########################################
## <summary>
## Read and map files on a DOS filesystem.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`fs_mmap_read_dos_files',`
gen_require(`
type dosfs_t;
')
read_files_pattern($1, dosfs_t, dosfs_t)
allow $1 dosfs_t:file map;
')
########################################
## <summary>
## Create, read, write, and delete files
@ -2039,6 +2058,26 @@ interface(`fs_read_efivarfs_files',`
read_files_pattern($1, efivarfs_t, efivarfs_t)
')
########################################
## <summary>
## Create, read, write, and delete files
## on a efivarfs filesystem.
## - contains Linux Kernel configuration options for UEFI systems
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`fs_manage_efivarfs_files',`
gen_require(`
type efivarfs_t;
')
manage_files_pattern($1, efivarfs_t, efivarfs_t)
')
########################################
## <summary>
## stat a FUSE filesystem