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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6
include/core/defs.h
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@ -180,6 +180,10 @@ void mountinit(void);
// 1 if the filesystem on this device refuses writes -- a mounted snapshot.
// Ask before mutating, not after: the create path panics on a failed dirlink.
int fs_readonly(uint dev);
int in_group(uint gid, int real);
uint inode_mode_bits(struct inode *ip);
int inode_permission(struct inode *ip, int mask, int real);
int capable(void);
int mount_add(uint dev, uint64 inum, uint fsdev, uint64 root,
const char *path, const char *source, const char *type);
// Walk the mount table for /proc/mounts. `path` and `source` need MAXPATH
@ -601,6 +605,8 @@ int fork(void);
int growproc(int64);
int kill(int);
int sigsend_pgrp(int pgid, int sig);
int sigsend_user(int pid, int sig);
int sigsend_pgrp_user(int pgid, int sig);
int proc_pgid(int pid);
int proc_setpgid(int pid, int pgid);
int proc_setsid(void);