Re: [PATCH 07/10] userdomain: Add watch on home dirs
Chris PeBenito <[email protected]>
| Newsgroups | org.kernel.vger.selinux-refpolicy |
|---|---|
| Message-ID | <[email protected]> |
On 2/16/20 3:03 PM, Jason Zaman wrote:
> avc: denied { watch } for pid=12351 comm="gmain" path="/usr/share/backgrounds/xfce" dev="zfs" ino=366749 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usr_t:s0 tclass=dir permissive=0
> avc: denied { watch } for pid=11646 comm="gmain" path="/etc/fonts" dev="zfs" ino=237700 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:fonts_t:s0 tclass=dir permissive=0
> avc: denied { watch } for pid=12351 comm="gmain" path="/home/jason/Desktop" dev="zfs" ino=33153 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=staff_u:object_r:user_home_t:s0 tclass=dir permissive=0
> avc: denied { watch } for pid=12574 comm="gmain" path="/home/jason/.local/share/icc" dev="zfs" ino=1954514 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=staff_u:object_r:xdg_data_t:s0 tclass=dir permissive=0
> avc: denied { watch } for pid=11795 comm="gmain" path="/home/jason/.config/xfce4/panel/launcher-19" dev="zfs" ino=35464 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=staff_u:object_r:xdg_config_t:s0 tclass=dir permissive=0
> avc: denied { watch } for pid=12351 comm="gmain" path="/home/jason/downloads/pics" dev="zfs" ino=38173 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=staff_u:object_r:xdg_downloads_t:s0 tclass=dir permissive=0
> Signed-off-by: Jason Zaman <[email protected]>
> ---
> policy/modules/services/xserver.if | 11 +-
> policy/modules/system/miscfiles.if | 37 ++++++
> policy/modules/system/userdomain.if | 15 +++
> policy/modules/system/xdg.if | 198 ++++++++++++++++++++++++++++
> 4 files changed, 260 insertions(+), 1 deletion(-)
>
> diff --git a/policy/modules/services/xserver.if b/policy/modules/services/xserver.if
> index c95a6b04..99c1a7ea 100644
> --- a/policy/modules/services/xserver.if
> +++ b/policy/modules/services/xserver.if
> @@ -95,6 +95,7 @@ interface(`xserver_restricted_role',`
> dev_rw_usbfs($2)
>
> miscfiles_read_fonts($2)
> + miscfiles_watch_fonts_dirs($2)
>
> xserver_common_x_domain_template(user, $2)
> xserver_domtrans($2)
> @@ -186,10 +187,13 @@ interface(`xserver_role',`
> optional_policy(`
> xdg_manage_all_cache($2)
> xdg_relabel_all_cache($2)
> + xdg_watch_all_cache_dirs($2)
> xdg_manage_all_config($2)
> xdg_relabel_all_config($2)
> + xdg_watch_all_config_dirs($2)
> xdg_manage_all_data($2)
> xdg_relabel_all_data($2)
> + xdg_watch_all_data_dirs($2)
>
> xdg_generic_user_home_dir_filetrans_cache($2, dir, ".cache")
> xdg_generic_user_home_dir_filetrans_config($2, dir, ".config")
> @@ -203,14 +207,19 @@ interface(`xserver_role',`
>
> xdg_manage_documents($2)
> xdg_relabel_documents($2)
> + xdg_watch_documents_dirs($2)
> xdg_manage_downloads($2)
> xdg_relabel_downloads($2)
> + xdg_watch_downloads_dirs($2)
> xdg_manage_music($2)
> xdg_relabel_music($2)
> + xdg_watch_music_dirs($2)
> xdg_manage_pictures($2)
> xdg_relabel_pictures($2)
> + xdg_watch_pictures_dirs($2)
> xdg_manage_videos($2)
> xdg_relabel_videos($2)
> + xdg_watch_videos_dirs($2)
>
> xdg_cache_filetrans($2, mesa_shader_cache_t, dir, "mesa_shader_cache")
> ')
> @@ -508,7 +517,7 @@ interface(`xserver_use_user_fonts',`
> ')
>
> # Read per user fonts
> - allow $1 user_fonts_t:dir list_dir_perms;
> + allow $1 user_fonts_t:dir { list_dir_perms watch };
> allow $1 user_fonts_t:file { map read_file_perms };
>
> # Manipulate the global font cache
> diff --git a/policy/modules/system/miscfiles.if b/policy/modules/system/miscfiles.if
> index 47330a48..6fbacc04 100644
> --- a/policy/modules/system/miscfiles.if
> +++ b/policy/modules/system/miscfiles.if
> @@ -252,6 +252,25 @@ interface(`miscfiles_manage_generic_tls_privkey_files',`
> read_lnk_files_pattern($1, tls_privkey_t, tls_privkey_t)
> ')
>
> +########################################
> +## <summary>
> +## Watch fonts.
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +## <rolecap/>
> +#
> +interface(`miscfiles_watch_fonts_dirs',`
> + gen_require(`
> + type fonts_t;
> + ')
> +
> + allow $1 fonts_t:dir watch;
> +')
> +
> ########################################
> ## <summary>
> ## Read fonts.
> @@ -805,6 +824,24 @@ interface(`miscfiles_manage_public_files',`
> manage_lnk_files_pattern($1, public_content_rw_t, public_content_rw_t)
> ')
>
> +########################################
> +## <summary>
> +## Watch public files
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`miscfiles_watch_public_dirs',`
> + gen_require(`
> + type public_content_rw_t;
> + ')
> +
> + allow $1 public_content_rw_t:dir watch;
> +')
> +
> ########################################
> ## <summary>
> ## Read TeX data
> diff --git a/policy/modules/system/userdomain.if b/policy/modules/system/userdomain.if
> index dd555850..6645c56a 100644
> --- a/policy/modules/system/userdomain.if
> +++ b/policy/modules/system/userdomain.if
> @@ -285,6 +285,12 @@ interface(`userdom_ro_home_role',`
> read_sock_files_pattern($2, { user_home_t user_home_dir_t }, user_home_t)
> files_list_home($2)
>
> + allow $2 { user_home_t user_home_dir_t }:dir { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:file { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:lnk_file { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:sock_file { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:fifo_file { watch watch_mount watch_sb watch_with_perm watch_reads };
> +
> tunable_policy(`use_nfs_home_dirs',`
> fs_list_nfs($2)
> fs_read_nfs_files($2)
> @@ -364,6 +370,12 @@ interface(`userdom_manage_home_role',`
> # cjp: this should probably be removed:
> allow $2 user_home_dir_t:dir { manage_dir_perms relabel_dir_perms };
>
> + allow $2 { user_home_t user_home_dir_t }:dir { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:file { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:lnk_file { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:sock_file { watch watch_mount watch_sb watch_with_perm watch_reads };
> + allow $2 { user_home_t user_home_dir_t }:fifo_file { watch watch_mount watch_sb watch_with_perm watch_reads };
> +
This hunk and the one above are overspecified. There shouldn't be any
user_home_dir_t files/lnk_files/sock_files/fifo_files.
> userdom_manage_user_certs($2)
> userdom_user_home_dir_filetrans($2, user_cert_t, dir, ".pki")
>
> @@ -618,6 +630,8 @@ template(`userdom_common_user_template',`
> files_read_var_lib_files($1_t)
> # Stat lost+found.
> files_getattr_lost_found_dirs($1_t)
> + files_watch_etc_dirs($1_t)
> + files_watch_usr_dirs($1_t)
>
> fs_rw_cgroup_files($1_t)
>
> @@ -1166,6 +1180,7 @@ template(`userdom_unpriv_user_template', `
> files_exec_usr_files($1_t)
>
> miscfiles_manage_public_files($1_t)
> + miscfiles_watch_public_dirs($1_t)
>
> tunable_policy(`user_dmesg',`
> kernel_read_ring_buffer($1_t)
> diff --git a/policy/modules/system/xdg.if b/policy/modules/system/xdg.if
> index 11fc4306..82304241 100644
> --- a/policy/modules/system/xdg.if
> +++ b/policy/modules/system/xdg.if
> @@ -83,6 +83,42 @@ interface(`xdg_search_cache_dirs',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg cache home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_cache_dirs',`
> + gen_require(`
> + type xdg_cache_t;
> + ')
> +
> + allow $1 xdg_cache_t:dir watch;
> +')
> +
> +########################################
> +## <summary>
> +## Watch all the xdg cache home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_all_cache_dirs',`
> + gen_require(`
> + attribute xdg_cache_type;
> + ')
> +
> + allow $1 xdg_cache_type:dir watch;
> +')
> +
> ########################################
> ## <summary>
> ## Read the xdg cache home files
> @@ -333,6 +369,42 @@ interface(`xdg_search_config_dirs',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg config home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_config_dirs',`
> + gen_require(`
> + type xdg_config_t;
> + ')
> +
> + allow $1 xdg_config_t:dir watch;
> +')
> +
> +########################################
> +## <summary>
> +## Watch all the xdg config home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_all_config_dirs',`
> + gen_require(`
> + attribute xdg_config_type;
> + ')
> +
> + allow $1 xdg_config_type:dir watch;
> +')
> +
> ########################################
> ## <summary>
> ## Read the xdg config home files
> @@ -563,6 +635,42 @@ interface(`xdg_relabel_all_config',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg data home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_data_dirs',`
> + gen_require(`
> + type xdg_data_t;
> + ')
> +
> + allow $1 xdg_data_t:dir watch;
> +')
> +
> +########################################
> +## <summary>
> +## Watch all the xdg data home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_all_data_dirs',`
> + gen_require(`
> + attribute xdg_data_type;
> + ')
> +
> + allow $1 xdg_data_type:dir watch;
> +')
> +
> ########################################
> ## <summary>
> ## Read the xdg data home files
> @@ -793,6 +901,24 @@ interface(`xdg_relabel_all_data',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg documents home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_documents_dirs',`
> + gen_require(`
> + type xdg_documents_t;
> + ')
> +
> + allow $1 xdg_documents_t:dir watch;
> +')
> +
> ########################################
> ## <summary>
> ## Create objects in the user home dir with an automatic type transition to
> @@ -865,6 +991,24 @@ interface(`xdg_relabel_documents',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg downloads home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_downloads_dirs',`
> + gen_require(`
> + type xdg_downloads_t;
> + ')
> +
> + allow $1 xdg_downloads_t:dir watch;
> +')
> +
> #########################################
> ## <summary>
> ## Read downloaded content
> @@ -1006,6 +1150,24 @@ interface(`xdg_relabel_downloads',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg pictures home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_pictures_dirs',`
> + gen_require(`
> + type xdg_pictures_t;
> + ')
> +
> + allow $1 xdg_pictures_t:dir watch;
> +')
> +
> #########################################
> ## <summary>
> ## Read user pictures content
> @@ -1101,6 +1263,24 @@ interface(`xdg_relabel_pictures',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg music home directories
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_music_dirs',`
> + gen_require(`
> + type xdg_music_t;
> + ')
> +
> + allow $1 xdg_music_t:dir watch;
> +')
> +
> #########################################
> ## <summary>
> ## Read user music content
> @@ -1196,6 +1376,24 @@ interface(`xdg_relabel_music',`
> userdom_search_user_home_dirs($1)
> ')
>
> +########################################
> +## <summary>
> +## Watch the xdg video content
> +## </summary>
> +## <param name="domain">
> +## <summary>
> +## Domain allowed access.
> +## </summary>
> +## </param>
> +#
> +interface(`xdg_watch_videos_dirs',`
> + gen_require(`
> + type xdg_videos_t;
> + ')
> +
> + allow $1 xdg_videos_t:dir watch;
> +')
> +
> #########################################
> ## <summary>
> ## Read user video content
>
--
Chris PeBenito