Name

inode_permission — check for access rights to a given inode

Synopsis

int inode_permission (struct inode * inode, int mask);

Arguments

inode

inode to check permission on

mask

right to check for (MAY_READ, MAY_WRITE, MAY_EXEC)

Description

Used to check for read/write/execute permissions on an inode. We use “fsuid” for this, letting us set arbitrary permissions for filesystem access without changing the “normal” uids which are used for other things.