9.30 add_mac_permissions ¶

#define MAC_PERM_CONTENTS 0b000001
#define MAC_PERM_READ     0b000010
#define MAC_PERM_WRITE    0b000100
#define MAC_PERM_EXEC     0b001000
#define MAC_PERM_APPEND   0b010000
#define MAC_PERM_FLOCK    0b100000

int add_mac_permissions(const char *path, int flags);

This syscall adds permissions to access an inode or device as described in Mandatory access control (MAC).

The syscall returns 0 on success or -1 on failure, with the following errno:

• EPERM: MAC did not allow this.
• EFAULT: The passed pointer does not point to valid memory.
• EAGAIN: The system has reached a limit on registered rules.
• EINVAL: The passed rule is already covered or conflicts with an existent one.