Permissions

 

Table: Permissions for the semaphore object class.

PERMISSION(S)	DESCRIPTION
read	Read
write	Write
create	Create
destroy	Destroy
getattr	Get attributes
setattr	Set attributes

 

 

Table: Permissions for the message queue object class.

PERMISSION(S)	DESCRIPTION
enqueue	Enqueue message
dequeue	Dequeue message
create	Create
destroy	Destroy
getattr	Get attributes
setattr	Set attributes

 

 

Table: Permissions for the message object class.

PERMISSION(S)	DESCRIPTION
send	Send
recv	Receive

 

 

Table: Permissions for the shared memory object class.

PERMISSION(S)	DESCRIPTION
read	Read
write	Write
create	Create
destroy	Destroy
getattr	Get attributes
setattr	Set attributes
attach	Attach
lock	Lock

 

The permissions defined for controlling access to each System V IPC object class are shown in Table 39, Table 40, Table 41, and Table 42.