mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-22 17:55:57 +01:00
e4847e4b40
Also:
* fix fops.c on both kernels:
* 5.9: the out of space error code was 1 not 8
* 6.6: for whatever reason we can't read the user buffer as before on the
diagnostic print, it leads to segfault and oops
* create memfile.c which is like fops.c but of unlimited size
13 lines
422 B
Bash
Executable File
13 lines
422 B
Bash
Executable File
#!/bin/sh
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set -e
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f=/sys/kernel/debug/lkmc_seq_file
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mod="${1:-seq_file.ko}"
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shift
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insmod "$mod" "$@"
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[ "$(cat "$f")" = "$(printf '0\n1\n2\n')" ]
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[ "$(cat "$f")" = "$(printf '0\n1\n2\n')" ]
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[ "$(dd if="$f" bs=1 count=2 skip=0 status=none)" = "$(printf '0\n')" ]
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[ "$(dd if="$f" bs=1 count=2 skip=2 status=none)" = "$(printf '1\n')" ]
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[ "$(dd if="$f" bs=4 count=1 skip=0 status=none)" = "$(printf '0\n1\n')" ]
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rmmod seq_file
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