From daf90caf6ff25de4e24decd05a4e46b84eae1a54 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2002 22:51:26 -0700 Subject: LSM: move the struct msg_msg and struct msg_queue definitions out of the msg.c file to the msg.h file Also move where the msg->q_perm.mode and .key values get set to before ipc_addid() gets called to make placing a hook there easier. --- include/linux/msg.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'include') diff --git a/include/linux/msg.h b/include/linux/msg.h index 4dfca8d4952c..4b64aebf312e 100644 --- a/include/linux/msg.h +++ b/include/linux/msg.h @@ -63,6 +63,35 @@ struct msginfo { #ifdef __KERNEL__ +/* one msg_msg structure for each message */ +struct msg_msg { + struct list_head m_list; + long m_type; + int m_ts; /* message text size */ + struct msg_msgseg* next; + /* the actual message follows immediately */ +}; + +#define DATALEN_MSG (PAGE_SIZE-sizeof(struct msg_msg)) +#define DATALEN_SEG (PAGE_SIZE-sizeof(struct msg_msgseg)) + +/* one msq_queue structure for each present queue on the system */ +struct msg_queue { + struct kern_ipc_perm q_perm; + time_t q_stime; /* last msgsnd time */ + time_t q_rtime; /* last msgrcv time */ + time_t q_ctime; /* last change time */ + unsigned long q_cbytes; /* current number of bytes on queue */ + unsigned long q_qnum; /* number of messages in queue */ + unsigned long q_qbytes; /* max number of bytes on queue */ + pid_t q_lspid; /* pid of last msgsnd */ + pid_t q_lrpid; /* last receive pid */ + + struct list_head q_messages; + struct list_head q_receivers; + struct list_head q_senders; +}; + asmlinkage long sys_msgget (key_t key, int msgflg); asmlinkage long sys_msgsnd (int msqid, struct msgbuf *msgp, size_t msgsz, int msgflg); asmlinkage long sys_msgrcv (int msqid, struct msgbuf *msgp, size_t msgsz, long msgtyp, int msgflg); -- cgit v1.2.3