table of contents
other versions
| INODE_PERMISSION(9) | The Linux VFS | INODE_PERMISSION(9) |
NAME¶
inode_permission - Check for access rights to a given inode
SYNOPSIS¶
int inode_permission(struct inode * inode, int mask);
ARGUMENTS¶
struct inode * inode
Inode to check permission on
int mask
Right to check for (MAY_READ, MAY_WRITE,
MAY_EXEC)
DESCRIPTION¶
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.
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.12 |