===== Error Codes =====
RSBAC returns specific error codes on internal functions as well as RSBAC system calls. The following errors are defined:

^Code    ^Reason ^
| EPERM 	| Same as Linux EPERM: Permission denied. | 
| EACCESS 	| RSBAC dir access failed internally | 
| EREADFAILED 	| Reading from disk or from data structures failed abnormally | 
| EWRITEFAILED 	| Writing to disk or data structures failed abnormally | 
| EINVALIDPOINTER 	| Pointer argument was invalid (e.g. NULL). | 
| ENOROOTDIR 	| Filesystem claims to have no root dir | 
| EPATHTOOLONG 	| A path argument was too long for buffer | 
| ENOROOTDEV 	| Root device does not exist / is not accessible | 
| ENOTFOUND 	| A file or an ACI item was not found | 
| ENOTINITIALIZED 	| RSBAC call before initialization | 
| EREINIT 	| RSBAC has already been initialized | 
| ECOULDNOTADDDEVICE 	| An internal device structure could not be added, possibly out of kernel memory | 
| ECOULDNOTADDITEM 	| A data structures list item or a proc pseudo file could not be added, possibly out of memory | 
| ECOULDNOTCREATEPATH 	| The /rsbac.dat dir on a filesystem could not be created | 
| EINVALIDATTR 	| Invalid attribute number | 
| EINVALIDDEV 	| Invalid device | 
| EINVALIDTARGET 	| Invalid target type | 
| EINVALIDVALUE 	| Other invalid value, e.g. attribute value out of range | 
| EEXISTS 	| Item already exists | 
| EINTERNONLY 	| A value must only be used internally | 
| EINVALIDREQUEST 	| Invalid request number | 
| ENOTWRITABLE 	| A filesystem is read-only, attributes were not written to it | 
| EMALWAREDETECTED 	(| No longer used, because incompatible with Unix standards / programs). A socket read request has been denied because of malware detection | 
| ENOMEM 	| Out of kernel memory | 
| EDECISIONMISMATCH 	| rsbac_adf_set_attr called for a request that rsbac_adf_request should not have granted, probably some attribute changes in the meantime or running in softmode | 
| EINVALIDVERSION 	| A REG registration or syscall was tried for another REG interface or RSBAC version | 
| EINVALIDMODULE 	| Trial to access attribute of unknown or not included decision  module | 
| EEXPIRED 	| The provided password has expired | 
| EMUSTCHANGE 	| The password must be changed | 
| EBUSY 	| An affected list is in use by another transaction | 
| EINVALIDTRANSACTION | The transaction number does not exist | 
| EWEAKPASSWORD	| The new password is too weak, e.g. too short | 
| EINVALIDLIST | The list handle given is invalid, probably some registration or disk read error |
| EFROMINTERRUPT | An RSBAC function has been called from interrupt context |

\\ 
----
**Table of Contents:** [[documentation:rsbac_handbook|RSBAC Handbook]]\\