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selinux/secilc/docs/cil_xen_statements.md
Yuli Khodorkovskiy 12c7dfc553 secilc/docs: Convert DocBook documentation into github markdown 
Converting to github markdown allows for easier integration with the
SELinux project wiki and viewing of documentation directly on github without
creating PDFs or reading through DocBook XML.

The conversion of DocBook to github markdown would not format tables or
keyword links properly. By maintaining the documentation in github
markdown in the repository, the content is well formatted with a table of
contents when viewing in the github wiki or in the repository.

The migration from DocBook to github markdown was done using Pandoc and
manual fixups. Mappings of CIL keywords to headings that were lost in the DocBook
conversion were added back. An introduction and design philosphy was
also pulled from the SELinux project wiki to provide more cohesion
to the current documentation.

Running make will now convert the github markdown into PDF and HTML.

Signed-off-by: Yuli Khodorkovskiy <ykhodorkovskiy@tresys.com>
2015-12-15 16:18:34 -05:00

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Xen Statements

Policy version 30 introduced the devicetreecon statement and also expanded the existing I/O memory range to 64 bits in order to support hardware with more than 44 bits of physical address space (32-bit count of 4K pages).

See the "XSM/FLASK Configuration" document for further information ()

iomemcon

Label i/o memory. This may be a single memory location or a range.

Statement definition:

(iomemcon mem_addr|(mem_low mem_high) context_id)

Where:

iomemcon

The iomemcon keyword.

mem_addr |

(mem_low mem_high)

A single memory address to apply the context, or a range of addresses.

The entries must consist of numerics [0-9].

context_id

A previously declared context identifier or an anonymous security context (user role type levelrange), the range MUST be defined whether the policy is MLS/MCS enabled or not.

Example:

An anonymous context for a memory address range of 0xfebe0-0xfebff:

(iomemcon (1043424 1043455) (unconfined.user object_r unconfined.object low_low))

ioportcon

Label i/o ports. This may be a single port or a range.

Statement definition:

(ioportcon port|(port_low port_high) context_id)

Where:

ioportcon

The ioportcon keyword.

port |

(port_low port_high)

A single port to apply the context, or a range of ports.

The entries must consist of numerics [0-9].

context_id

A previously declared context identifier or an anonymous security context (user role type levelrange), the range MUST be defined whether the policy is MLS/MCS enabled or not.

Example:

An anonymous context for a single port of :0xecc0:

(ioportcon 60608 (unconfined.user object_r unconfined.object low_low))

pcidevicecon

Label a PCI device.

Statement definition:

(pcidevicecon device context_id)

Where:

pcidevicecon

The pcidevicecon keyword.

device

The device number.The entries must consist of numerics [0-9].

context_id

A previously declared context identifier or an anonymous security context (user role type levelrange), the range MUST be defined whether the policy is MLS/MCS enabled or not.

Example:

An anonymous context for a pci device address of 0xc800:

(pcidevicecon 51200 (unconfined.user object_r unconfined.object low_low))

pirqcon

Label an interrupt level.

Statement definition:

(pirqcon irq_level context_id)

Where:

pirqcon

The pirqcon keyword.

irq_level

The interrupt request number. The entries must consist of numerics [0-9].

context_id

A previously declared context identifier or an anonymous security context (user role type levelrange), the range MUST be defined whether the policy is MLS/MCS enabled or not.

Example:

An anonymous context for IRQ 33:

(pirqcon 33 (unconfined.user object_r unconfined.object low_low))

devicetreecon

Label device tree nodes.

Statement definition:

(devicetreecon path context_id)

Where:

devicetreecon

The devicetreecon keyword.

path

The device tree path. If this contains spaces enclose within "".

context_id

A previously declared context identifier or an anonymous security context (user role type levelrange), the range MUST be defined whether the policy is MLS/MCS enabled or not.

Example:

An anonymous context for the specified path:

(devicetreecon "/this is/a/path" (unconfined.user object_r unconfined.object low_low))