table of contents
| GENERIC_PERMISSION(9) | The Linux VFS | GENERIC_PERMISSION(9) |
NAME¶
generic_permission - check for access rights on a Posix-like filesystem
SYNOPSIS¶
int generic_permission(struct inode * inode, int mask, int (*check_acl) (struct inode *inode, int mask));
ARGUMENTS¶
inode
inode to check access rights for
mask
right to check for (MAY_READ, MAY_WRITE,
MAY_EXEC)
check_acl
optional callback to check for Posix ACLs
DESCRIPTION¶
Used to check for read/write/execute permissions on a file. We use “fsuid” for this, letting us set arbitrary permissions for filesystem access without changing the “normal” uids which are used for other things..
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |