[refpolicy] [PATCH 12/20] Initial virtio console device

[cpebenito@tresys.com (Christopher J. PeBenito)]

On Tue 24 Sep 2013 09:39:56 AM EDT, Dominick Grift wrote:
> Also known as 'vmchannel', a transport mechanism is needed for
> communication between the host userspace and guest userspace for
> achieving things like making clipboard copy/paste work seamlessly across
> the host and guest, locking the guest screen in case the vnc session to
> the guest is closed and so on. This can be used in offline cases as
> well, for example with libguestfs to probe which file systems the guest
> uses, the apps installed, etc.
>
> Virtio-serial is just the transport protocol that will enable such
> applications to be written. It has two parts: (a) device emulation in
> qemu that presents a virtio-pci device to the guest and (b) a guest
> driver that presents a char device interface to userspace applications.

Merged.



> Signed-off-by: Dominick Grift <dominick.grift@gmail.com>
> ---
>  policy/modules/kernel/terminal.fc |  1 +
>  policy/modules/kernel/terminal.if | 19 +++++++++++++++++++
>  policy/modules/kernel/terminal.te |  4 ++++
>  3 files changed, 24 insertions(+)
>
> diff --git a/policy/modules/kernel/terminal.fc b/policy/modules/kernel/terminal.fc
> index 7d45d15..0ea25b6 100644
> --- a/policy/modules/kernel/terminal.fc
> +++ b/policy/modules/kernel/terminal.fc
> @@ -19,6 +19,7 @@
>  /dev/slamr[0-9]+	-c	gen_context(system_u:object_r:tty_device_t,s0)
>  /dev/tty		-c	gen_context(system_u:object_r:devtty_t,s0)
>  /dev/ttySG.*		-c	gen_context(system_u:object_r:tty_device_t,s0)
> +/dev/vport[0-9]p[0-9]+	-c	gen_context(system_u:object_r:virtio_device_t,s0)
>  /dev/xvc[^/]*		-c	gen_context(system_u:object_r:tty_device_t,s0)
>
>  /dev/pty/.*		-c	gen_context(system_u:object_r:bsdpty_device_t,s0)
> diff --git a/policy/modules/kernel/terminal.if b/policy/modules/kernel/terminal.if
> index 771bce1..cbb729b 100644
> --- a/policy/modules/kernel/terminal.if
> +++ b/policy/modules/kernel/terminal.if
> @@ -1512,3 +1512,22 @@ interface(`term_dontaudit_use_all_user_ttys',`
>  	refpolicywarn(`$0() is deprecated, use term_dontaudit_use_all_ttys() instead.')
>  	term_dontaudit_use_all_ttys($1)
>  ')
> +
> +#####################################
> +## <summary>
> +##	Read from and write virtio console.
> +## </summary>
> +## <param name="domain">
> +##	<summary>
> +##	Domain allowed access.
> +##	</summary>
> +## </param>
> +#
> +interface(`term_use_virtio_console',`
> +	gen_require(`
> +		type virtio_device_t;
> +	')
> +
> +	dev_list_all_dev_nodes($1)
> +	allow $1 virtio_device_t:chr_file rw_term_perms;
> +')
> diff --git a/policy/modules/kernel/terminal.te b/policy/modules/kernel/terminal.te
> index 224e500..a4c9998 100644
> --- a/policy/modules/kernel/terminal.te
> +++ b/policy/modules/kernel/terminal.te
> @@ -56,3 +56,7 @@ dev_node(tty_device_t)
>  #
>  type usbtty_device_t, serial_device;
>  dev_node(usbtty_device_t)
> +
> +type virtio_device_t, serial_device;
> +dev_node(virtio_device_t)
> +



--
Chris PeBenito
Tresys Technology, LLC
www.tresys.com | oss.tresys.com