264 lines
9.8 KiB
Text
264 lines
9.8 KiB
Text
1) Reference Policy make targets:
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General Make targets:
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install-src Install the policy sources into
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/etc/selinux/NAME/src/policy, where NAME is defined in
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the Makefile. If not defined, the TYPE, as defined in
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the Makefile, is used. The default NAME is refpolicy.
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A pre-existing source policy will be moved to
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/etc/selinux/NAME/src/policy.bak.
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conf Regenerate policy.xml, and update/create modules.conf
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and booleans.conf. This should be done after adding
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or removing modules, or after running the bare target.
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If the configuration files exist, their settings will
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be preserved. This must be ran on policy sources that
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are checked out from the CVS repository before they can
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be used.
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clean Delete all temporary files, compiled policies,
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and file_contexts. Configuration files are left intact.
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bare Do the clean make target and also delete configuration
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files, web page documentation, and policy.xml.
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html Regenerate policy.xml and create web page documentation
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in the doc/html directory.
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Make targets specific to modular (loadable modules) policies:
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base Compile and package the base module. This is the
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default target for modular policies.
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modules Compile and package all Reference Policy modules
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configured to be built as loadable modules.
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MODULENAME.pp Compile and package the MODULENAME Reference Policy
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module.
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all Compile and package the base module and all Reference
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Policy modules configured to be built as loadable
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modules.
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install Compile, package, and install the base module and
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Reference Policy modules configured to be built as
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loadable modules.
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load Compile, package, and install the base module and
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Reference Policy modules configured to be built as
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loadable modules, then insert them into the module
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store.
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validate Validate if the configured modules can successfully
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link and expand.
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install-headers Install the policy headers into /usr/share/selinux/NAME.
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The headers are sufficient for building a policy
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module locally, without requiring the complete
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Reference Policy sources. The build.conf settings
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for this policy configuration should be set before
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using this target.
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Make targets specific to monolithic policies:
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policy Compile a policy locally for development and testing.
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This is the default target for monolithic policies.
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install Compile and install the policy and file contexts.
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load Compile and install the policy and file contexts, then
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load the policy.
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enableaudit Remove all dontaudit rules from policy.conf.
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relabel Relabel the filesystem.
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checklabels Check the labels on the filesystem, and report when
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a file would be relabeled, but do not change its label.
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restorelabels Relabel the filesystem and report each file that is
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relabeled.
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2) Reference Policy Build Options (build.conf)
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TYPE String. Available options are standard, mls, and mcs.
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For a type enforcement only system, set standard.
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This optionally enables multi-level security (MLS) or
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multi-category security (MCS) features. This option
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controls enable_mls, and enable_mcs policy blocks.
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NAME String (optional). Sets the name of the policy; the
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NAME is used when installing files to e.g.,
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/etc/selinux/NAME and /usr/share/selinux/NAME. If not
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set, the policy type (TYPE) is used.
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DISTRO String (optional). Enable distribution-specific policy.
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Available options are redhat, rhel4, gentoo, debian,
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and suse. This option controls distro_redhat,
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distro_rhel4, distro_gentoo, distro_debian, and
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distro_suse policy blocks.
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MONOLITHIC Boolean. If set, a monolithic policy is built,
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otherwise a modular policy is built.
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DIRECT_INITRC Boolean. If set, sysadm will be allowed to directly
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run init scripts, instead of requiring the run_init
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tool. This is a build option instead of a tunable since
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role transitions do not work in conditional policy.
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This option controls direct_sysadm_daemon policy
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blocks.
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OUTPUT_POLICY Integer. Set the version of the policy created when
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building a monolithic policy. This option has no effect
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on modular policy.
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UNK_PERMS String. Set the kernel behavior for handling of
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permissions defined in the kernel but missing from the
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policy. The permissions can either be allowed, denied,
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or the policy loading can be rejected.
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UBAC Boolean. If set, the SELinux user will be used
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additionally for approximate role separation.
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MLS_SENS Integer. Set the number of sensitivities in the MLS
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policy. Ignored on standard and MCS policies.
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MLS_CATS Integer. Set the number of categories in the MLS
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policy. Ignored on standard and MCS policies.
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MCS_CATS Integer. Set the number of categories in the MCS
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policy. Ignored on standard and MLS policies.
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QUIET Boolean. If set, the build system will only display
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status messages and error messages. This option has no
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effect on policy.
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3) Reference Policy Files and Directories
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All directories relative to the root of the Reference Policy sources directory.
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Makefile General rules for building the policy.
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Rules.modular Makefile rules specific to building loadable module
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policies.
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Rules.monolithic Makefile rules specific to building monolithic policies.
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build.conf Options which influence the building of the policy,
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such as the policy type and distribution.
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config/appconfig-* Application configuration files for all configurations
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of the Reference Policy (targeted/strict with or without
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MLS or MCS). These are used by SELinux-aware programs.
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config/local.users The file read by load policy for adding SELinux users
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to the policy on the fly.
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doc/html/* This contains the contents of the in-policy XML
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documentation, presented in web page form.
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doc/policy.dtd The doc/policy.xml file is validated against this DTD.
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doc/policy.xml This file is generated/updated by the conf and html make
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targets. It contains the complete XML documentation
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included in the policy.
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doc/templates/* Templates used for documentation web pages.
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policy/booleans.conf This file is generated/updated by the conf make target.
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It contains the booleans in the policy, and their
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default values. If tunables are implemented as
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booleans, tunables will also be included. This file
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will be installed as the /etc/selinux/NAME/booleans
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file.
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policy/constraints This file defines additional constraints on permissions
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in the form of boolean expressions that must be
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satisfied in order for specified permissions to be
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granted. These constraints are used to further refine
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the type enforcement rules and the role allow rules.
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Typically, these constraints are used to restrict
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changes in user identity or role to certain domains.
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policy/global_booleans This file defines all booleans that have a global scope,
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their default value, and documentation.
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policy/global_tunables This file defines all tunables that have a global scope,
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their default value, and documentation.
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policy/flask/initial_sids This file has declarations for each initial SID.
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policy/flask/security_classes This file has declarations for each security class.
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policy/flask/access_vectors This file defines the access vectors. Common
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prefixes for access vectors may be defined at the
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beginning of the file. After the common prefixes are
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defined, an access vector may be defined for each
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security class.
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policy/mcs The multi-category security (MCS) configuration.
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policy/mls The multi-level security (MLS) configuration.
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policy/modules/* Each directory represents a layer in Reference Policy
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all of the modules are contained in one of these layers.
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policy/modules.conf This file contains a listing of available modules, and
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how they will be used when building Reference Policy. To
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prevent a module from being used, set the module to
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"off". For monolithic policies, modules set to "base"
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and "module" will be included in the policy. For
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modular policies, modules set to "base" will be included
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in the base module; those set to "module" will be
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compiled as individual loadable modules.
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policy/support/* Support macros.
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policy/users This file defines the users included in the policy.
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support/* Tools used in the build process.
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4) Building policy modules using Reference Policy headers:
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The system must first have the Reference Policy headers installed, typically
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by the distribution. Otherwise, the headers can be installed using the
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install-headers target from the full Reference Policy sources.
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To set up a directory to build a local module, one must simply place a .te
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file in a directory. A sample Makefile to use in the directory is the
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Makefile.example in the doc directory. This may be installed in
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/usr/share/doc, under the directory for the distribution's policy.
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Alternatively, the primary Makefile in the headers directory (typically
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/usr/share/selinux/NAME/Makefile) can be called directly, using make's -f
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option.
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Larger projects can set up a structure of layers, just as in Reference
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Policy, by creating policy/modules/LAYERNAME directories. Each layer also
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must have a metadata.xml file which is an XML file with a summary tag and
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optional desc (long description) tag. This should describe the purpose of
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the layer.
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Metadata.xml example:
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<summary>ABC modules for the XYZ components.</summary>
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Make targets for modules built from headers:
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MODULENAME.pp Compile and package the MODULENAME local module.
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all Compile and package the modules in the current
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directory.
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load Compile and package the modules in the current
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directory, then insert them into the module store.
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refresh Attempts to reinsert all modules that are currently
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in the module store from the local and system module
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packages.
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xml Build a policy.xml from the XML included with the
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base policy headers and any XML in the modules in
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the current directory.
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