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https://github.com/AuxXxilium/redpill-lkm5.git
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62 lines
3.0 KiB
Markdown
62 lines
3.0 KiB
Markdown
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# 💊 RedPill LKM
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---
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## THIS IS WORK IN PROGRESS
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There's nothing to run/see here (yet ;)).
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---
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## What is this?
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This is a major part of a tool which will be able to run a DSM instance for research purposes without
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engaging your real DS machine and risking your data in the process (ask me how I know...).
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## Target audience
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This repository is target towards **developers** willing to learn and help with implementation of peculiarities of
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Synology's DSM Linux distribution.
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Read about the quirk in a separate repo: https://github.com/RedPill-TTG/dsm-research/tree/master/quirks
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## How to build with Linux sources?
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1. You need Synology's GPL sources for the kernel. Check the [Makefile](Makefile) for details
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2. `cd` to kernel sources
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3. Depending on the version:
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- **Linux v3**
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- `cp synoconfigs/bromolow .config`
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- **Linux v4**
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- `cp synoconfigs/apollolake .config`
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- `echo '+' > .scmversion` (otherwise it will error-out loading modules)
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4. `make oldconfig ; make modules_prepare`
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5. `cd` back to the module directory
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6. `make LINUX_SRC=....` (path to linux sources, default: `../linux-3.10.x-bromolow-25426`)
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7. You will get a `redpill.ko` module as the result, you can `insmod` it
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## How to build with syno toolkit?
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The procedure to build with the toolkit is **not recommended**. However, some versions lack the kernel sources
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(e.g. v7 now) and thus can only use this method.
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1. Get the appropriate toolkit from the [official SF repo](https://sourceforge.net/projects/dsgpl/files/toolkit/)
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- You want to get the `.dev.txz` file for the corresponding platform (e.g. `ds.bromolow-7.0.dev.txz`)
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- You only need to unpack a part of it: `tar -xvf ds.bromolow-7.0.dev.txz usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/lib/modules/DSM-7.0/build`
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- If the path above changed you can use `tar -tvf ds.bromolow-7.0.dev.txz | grep kfifo.h` to find the correct one
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2. `cd` to the module directory
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3. `make LINUX_SRC=<toolkit-directory>/usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/lib/modules/DSM-7.0/build`
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4. You will get a `redpill.ko` module as the result, you can `insmod` it
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## Additional make options
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While calling `make` you can also add these additional modifiers (e.g. `make FOO BAR`):
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- `DBG_EXECVE=y`: enabled debugging of every `execve()` call with arguments
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- `STEALTH_MODE=#`: controls the level of "stealthiness", see `STEALTH_MODE_*` in `internal/stealth.h`; it's
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`STEALTH_MODE_BASIC` by default
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- `LINUX_SRC=...`: path to the linux kernel sources (`./linux-3.10.x-bromolow-25426` by default)
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On Debian-based systems you will need `build-essential` and `libssl-dev` packages at minimum.
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## Documentation split
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The documentation regarding actual quirks/mechanisms/discoveries regarding DSM is present in a dedicated research repo
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at https://github.com/RedPill-TTG/dsm-research/. Documentation in this repository is solely aimed to explain
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implementation details of the kernel module. It will mostly be available in forms of long(ish) doc blocks.
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# redpill-lkm5
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