inode_permission9
Check for access rights to a given inode
Usage
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)
Overview
Check for read/write/execute permissions on an inode. We use fs[ug]id for this, letting us set arbitrary permissions for filesystem access without changing the “normal” UIDs which are used for other things.
When checking for MAY_APPEND, MAY_WRITE must also be set in mask.
Releases
4 releases since Debian 6.0 (Squeeze); the text changed 3 times.