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https://github.com/genodelabs/genode.git
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2c8beb462f
This patch changes the way of how the client-selected sub directory is communicated to the server. The former opaque session argument is now passed as last label element, which allows for the flexible tweaking of this argument by init's session-routing and label-rewriting mechansims. In particular, it alleviates the need for creating chroot component instances. This change requires the following four adaptations at the configuration level: - Each file-system session request must now carry a path starting with / as last session arguments. Hence, <vfs> <fs> nodes that feature a 'label' attributes must extend the attribute value with " -> /". For <fs> nodes with no label attribute, "/" is used as last label argument by default. - For matching session-routing rules at init's configuration, the matching of full labels should be replaced by 'label_prefix' matches, excluding the last (path) argument. - Wherever a label of a file-system session is rewritten by using init's 'label' attribute of a <parent> or <child> target node, the new attribute 'identity' should be used instead. This replaces the identity part of the label while preserving the client's directory argument. - Analogously to the matching of session-routing rules, server-side policy-selection rules that formerly matched a concrete 'label' must be changed to match a 'label_prefix' instead. As a good practice, 'label_prefix' values should end with " ->" if possible, which clearly delimits the identity part of the label used by the matching. Issue #5445
115 lines
2.7 KiB
Plaintext
115 lines
2.7 KiB
Plaintext
assert_spec linux
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lappend depot_archives [depot_user]/src/[base_src]
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lappend depot_archives [depot_user]/src/init
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lappend depot_archives [depot_user]/src/vfs
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lappend depot_archives [depot_user]/src/vfs_import
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set build_components { }
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if { [get_cmd_switch --autopilot] } {
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lappend depot_archives [depot_user]/src/lx_fs
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} else {
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lappend build_components server/lx_fs
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}
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create_boot_directory
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install_config {
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<config>
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<parent-provides>
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<service name="ROM"/>
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<service name="IRQ"/>
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<service name="IO_MEM"/>
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<service name="IO_PORT"/>
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<service name="PD"/>
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<service name="RM"/>
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<service name="CPU"/>
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<service name="LOG"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<resource name="RAM" preserve="200M"/>
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<resource name="CAP" preserve="1000"/>
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<start name="timer" caps="100" ram="1M">
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<provides> <service name="Timer"/> </provides>
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</start>
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<start name="import_lx_fs" caps="220" ram="8M" ld="no">
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<binary name="lx_fs"/>
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<provides>
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<service name="File_system"/>
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</provides>
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<config>
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<policy label_prefix="import_showcase ->" root="/" writeable="yes"/>
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</config>
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<route>
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<any-service> <parent/> <any-child/> </any-service>
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</route>
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</start>
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<start name="import_showcase" caps="100" ram="4M">
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<binary name="vfs"/>
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<provides>
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<service name="File_system"/>
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</provides>
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<config>
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<vfs> <fs/>
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<import overwrite="false">
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<dir name="test-existing-file">
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<inline name="a_file">Hello Friend!</inline>
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</dir>
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<dir name="test-file">
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<inline name="foo">bar</inline>
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</dir>
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<dir name="test-existing-directory">
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<inline name="foo">bar</inline>
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</dir>
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</import>
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</vfs>
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</config>
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<route>
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<service name="File_system"> <child name="import_lx_fs"/> </service>
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<any-service> <parent/> <any-child/> </any-service>
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</route>
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</start>
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</config>
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}
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import_from_depot $depot_archives
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if { [llength $build_components] > 0 } {
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build $build_components
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}
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build_boot_image [build_artifacts]
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## Create files before genode is run
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exec mkdir -p [run_dir]/genode/test-existing-file
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exec echo "This file already exist." > [run_dir]/genode/test-existing-file/a_file
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exec mkdir -p [run_dir]/genode/test-existing-directory
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append qemu_args " -nographic "
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run_genode_until "Warning: skipping copy of file /test-existing-file/a_file, OPEN_ERR_EXISTS" 20
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set created_file { [run_dir]/genode/test-file/foo }
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if { [file exists $created_file] == 1 } {
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puts { "Imported file not found." }
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exit 1
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}
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set created_file_in_dir { [run_dir]/genode/test-existing-directory/foo }
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if { [file exists $created_file] == 1 } {
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puts { "Imported file not found." }
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exit 1
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}
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