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41 lines
802 B
Markdown
41 lines
802 B
Markdown
# Host
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Simple things that can be demonstrated by inserting a module into the currently running host. Tested on Ubuntu 16.04.
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1. [hello](hello.c)
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1. [ins_rm_mod.c](ins_rm_mod.c)
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## Rationale
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This method easier to setup, but it is not recommended for development, as:
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- it may break your system
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- you can't control which kernel version to use
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Use VMs instead.
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## Usage
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We only use it for super simple examples.
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Build, insert and remove a hello world module:
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make
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sudo insmod hello.ko
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# Our module should be there.
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sudo lsmod | grep hello
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# Last message should be: init_module
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dmest -T
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sudo rmmod hello
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# Last message should be: cleanup_module
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dmest -T
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Insert and remove the `hello.ko` module from a C program with system calls:
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sudo ./ins_rm_mod.out
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