nexoniarz/SchOS
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Users and permissions: accounts, login, enforced file permissions, setuid, su, passwd, doas

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The kernel now checks owner/group/other on open, create, unlink, rename, exec
and path search; honours set-user-id and set-group-id; restricts kill, mount,
reboot and mknod; keeps supplementary groups; and implements chown. devtmpfs
nodes carry owners and modes that chmod/chown keep. Terminals run login, the
image has root and schos, X starts as the ordinary user.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EVRhxi9zpdW2uDUN4FVcao
This commit is contained in:
Nexoniarz 2026-10-26 13:16:07 +01:00
commit 020aa6113c
34 changed files with 1342 additions and 120 deletions
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14
etc/udev-schos.rules Normal file
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# SchOS's own device permissions, applied after Alpine's (the name sorts last
# once installed as 90-schos.rules).
#
# The kernel makes these nodes with the permissions it means them to have
# (kernel/fs/devfs.c). udev, with no rule that names a node, would chmod it to
# 0600 -- which made /dev/null unusable to everyone but root -- so every kernel
# device is named here with the same answer the kernel gave.
SUBSYSTEM=="mem", MODE="0666"
SUBSYSTEM=="tty", KERNEL=="console", GROUP="root", MODE="0600"
SUBSYSTEM=="tty", KERNEL=="tty0|tty[0-9]|tty1[0-2]", GROUP="tty", MODE="0660"
SUBSYSTEM=="input", GROUP="input", MODE="0660"
SUBSYSTEM=="graphics", GROUP="video", MODE="0660"
SUBSYSTEM=="block", GROUP="disk", MODE="0660"