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..