[gentoo-commits] proj/hardened-refpolicy:next commit in: policy/modules/system/, policy/modules/kernel/

["Jason Zaman" <perfinion@gentoo.org>]

commit:     b0cfc980dcefdffcdcf2929394278e3ea983a88c
Author:     Jason Zaman <jason <AT> perfinion <DOT> com>
AuthorDate: Thu Dec 17 18:38:24 2015 +0000
Commit:     Jason Zaman <perfinion <AT> gentoo <DOT> org>
CommitDate: Fri Dec 18 04:12:51 2015 +0000
URL:        https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=b0cfc980

Add permissions for ZFS list and send/recv

zfs list uses a pipe to get info from the kernel

avc:  granted  { write } for  pid=31602 comm="dump_list_strat" path="pipe:[4471132]" dev="pipefs" ino=4471132 scontext=system_u:system_r:kernel_t:s0 tcontext=staff_u:sysadm_r:mount_t:s0-s0:c0.c511 tclass=fifo_file
avc:  granted  { read } for pid=31601 comm="zfs" path="pipe:[4471132]" dev="pipefs" ino=4471132 scontext=staff_u:sysadm_r:mount_t:s0-s0:c0.c511 tcontext=staff_u:sysadm_r:mount_t:s0-s0:c0.c511 tclass=fifo_file

zfs send / recv is usually piped somewhere by sysadm
zfs send tank@snap | ssh foo tank@snap

 policy/modules/kernel/kernel.te | 9 +++++++++
 policy/modules/system/mount.te  | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/policy/modules/kernel/kernel.te b/policy/modules/kernel/kernel.te
index 4ac22e0..f1016a3 100644
--- a/policy/modules/kernel/kernel.te
+++ b/policy/modules/kernel/kernel.te
@@ -461,4 +461,13 @@ ifdef(`distro_gentoo',`
 	# See also bug 535992
 	#dev_manage_all_dev_nodes(kernel_t)
 	dev_setattr_generic_chr_files(kernel_t)
+
+	# ZFS send/recv writes to an fd
+	optional_policy(`
+		sysadm_use_fds(kernel_t)
+	')
+	# zfs list writes to a pipe
+	optional_policy(`
+		mount_rw_pipes(kernel_t)
+	')
 ')

diff --git a/policy/modules/system/mount.te b/policy/modules/system/mount.te
index 497fa59..920abc7 100644
--- a/policy/modules/system/mount.te
+++ b/policy/modules/system/mount.te
@@ -42,6 +42,9 @@ application_domain(unconfined_mount_t, mount_exec_t)
 
 # setuid/setgid needed to mount cifs
 allow mount_t self:capability { ipc_lock sys_rawio sys_admin dac_override chown sys_tty_config setuid setgid };
+allow mount_t self:process signal;
+# zfs list uses pipes
+allow mount_t self:fifo_file rw_fifo_file_perms;
 
 mount_read_loopback_files(mount_t)