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Adds an extension to enable the `uinput` kernel module which makes it possible to emulate input devices from userspace. Signed-off-by: Judah Rand <[email protected]> Signed-off-by: Noel Georgi <[email protected]>
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| # uinput extension | ||
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| ## Installation | ||
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| See [Installing Extensions](https://github.com/siderolabs/extensions#installing-extensions). | ||
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| ## Usage | ||
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| Enable the `uinput` module in Talos machine config. | ||
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| ```yaml | ||
| machine: | ||
| kernel: | ||
| modules: | ||
| - name: uinput | ||
| ``` | ||
| ## Verifiying | ||
| You can verify the modules are enabled by the `/proc/modules` where it _should_ show the module is live. | ||
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| For example: | ||
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| ``` | ||
| ❯ talosctl -n 192.168.42.15 read /proc/modules | ||
| uinput 24576 - - Live 0xffffffffc0414000 | ||
| ``` | ||
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| In addition, the `/dev/uinput` device should be present. | ||
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| For example: | ||
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| ``` | ||
| ❯ talosctl -n 192.168.42.15 ls /dev/uinput' | ||
| NODE NAME | ||
| 192.168.42.15 uinput | ||
| ``` |
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| modules.order | ||
| modules.builtin | ||
| modules.builtin.modinfo | ||
| kernel/drivers/input/misc/uinput.ko |
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| version: v1alpha1 | ||
| metadata: | ||
| name: uinput | ||
| version: "$VERSION" | ||
| author: Judah Rand | ||
| description: | | ||
| This system extension provides the uinput kernel module built against a specific Talos version. | ||
| This kernel module makes it possible to emulate input devices from userspace. By writing to | ||
| /dev/uinput (or /dev/input/uinput) device, a process can create a virtual input device with | ||
| specific capabilities. Once this virtual device is created, the process can send events through it, | ||
| that will be delivered to userspace and in-kernel consumers. | ||
| compatibility: | ||
| talos: | ||
| version: ">= v1.4.5" |
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| name: uinput | ||
| variant: scratch | ||
| shell: /toolchain/bin/bash | ||
| dependencies: | ||
| - stage: base | ||
| # The pkgs version for a particular release of Talos as defined in | ||
| # https://github.com/siderolabs/talos/blob/<talos version>/pkg/machinery/gendata/data/pkgs | ||
| - image: "{{ .BUILD_ARG_PKGS_PREFIX }}/kernel:{{ .BUILD_ARG_PKGS }}" | ||
| steps: | ||
| - prepare: | ||
| - | | ||
| sed -i 's#$VERSION#{{ .VERSION }}#' /pkg/manifest.yaml | ||
| - install: | ||
| - | | ||
| export KERNELRELEASE=$(find /lib/modules -type d -name "*-talos" -exec basename {} \+) | ||
| mkdir -p /rootfs | ||
| xargs -a /pkg/files/modules.txt -I {} install -D /lib/modules/${KERNELRELEASE}/{} /rootfs/lib/modules/${KERNELRELEASE}/{} | ||
| depmod -b /rootfs ${KERNELRELEASE} | ||
| - test: | ||
| - | | ||
| # https://www.kernel.org/doc/html/v4.15/admin-guide/module-signing.html#signed-modules-and-stripping | ||
| find /rootfs/lib/modules -name '*.ko' -exec grep -FL '~Module signature appended~' {} \+ | ||
| - | | ||
| mkdir -p /extensions-validator-rootfs | ||
| cp -r /rootfs/ /extensions-validator-rootfs/rootfs | ||
| cp /pkg/manifest.yaml /extensions-validator-rootfs/manifest.yaml | ||
| /extensions-validator validate --rootfs=/extensions-validator-rootfs --pkg-name="${PKG_NAME}" | ||
| finalize: | ||
| - from: /rootfs | ||
| to: /rootfs | ||
| - from: /pkg/manifest.yaml | ||
| to: / |
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| @@ -0,0 +1 @@ | ||
| VERSION: "{{ .BUILD_ARG_TAG }}" |
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