vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/fs.h>
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#define DEVCG_ACC_MKNOD 1
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#define DEVCG_ACC_READ 2
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#define DEVCG_ACC_WRITE 4
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#define DEVCG_ACC_MASK (DEVCG_ACC_MKNOD | DEVCG_ACC_READ | DEVCG_ACC_WRITE)
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#define DEVCG_DEV_BLOCK 1
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#define DEVCG_DEV_CHAR 2
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#define DEVCG_DEV_ALL 4 /* this represents all devices */
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#if defined(CONFIG_CGROUP_DEVICE) || defined(CONFIG_CGROUP_BPF)
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int devcgroup_check_permission(short type, u32 major, u32 minor,
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short access);
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static inline int devcgroup_inode_permission(struct inode *inode, int mask)
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{
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short type, access = 0;
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if (likely(!S_ISBLK(inode->i_mode) && !S_ISCHR(inode->i_mode)))
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return 0;
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if (!inode->i_rdev)
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return 0;
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if (S_ISBLK(inode->i_mode))
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type = DEVCG_DEV_BLOCK;
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else /* S_ISCHR by the test above */
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type = DEVCG_DEV_CHAR;
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if (mask & MAY_WRITE)
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access |= DEVCG_ACC_WRITE;
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if (mask & MAY_READ)
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access |= DEVCG_ACC_READ;
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return devcgroup_check_permission(type, imajor(inode), iminor(inode),
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access);
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}
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static inline int devcgroup_inode_mknod(int mode, dev_t dev)
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{
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short type;
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if (!S_ISBLK(mode) && !S_ISCHR(mode))
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return 0;
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if (S_ISCHR(mode) && dev == WHITEOUT_DEV)
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return 0;
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if (S_ISBLK(mode))
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type = DEVCG_DEV_BLOCK;
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else
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type = DEVCG_DEV_CHAR;
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return devcgroup_check_permission(type, MAJOR(dev), MINOR(dev),
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DEVCG_ACC_MKNOD);
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}
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#else
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static inline int devcgroup_check_permission(short type, u32 major, u32 minor,
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short access)
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{ return 0; }
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static inline int devcgroup_inode_permission(struct inode *inode, int mask)
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{ return 0; }
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static inline int devcgroup_inode_mknod(int mode, dev_t dev)
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{ return 0; }
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#endif
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