400 static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd,  in msgctl_down()  argument
410 	ipcp = ipcctl_obtain_check(ns, &msg_ids(ns), msqid, cmd,  in msgctl_down()
476 static int msgctl_info(struct ipc_namespace *ns, int msqid,  in msgctl_info()  argument
512 static int msgctl_stat(struct ipc_namespace *ns, int msqid,  in msgctl_stat()  argument
522 		msq = msq_obtain_object(ns, msqid);  in msgctl_stat()
528 		msq = msq_obtain_object_check(ns, msqid);  in msgctl_stat()
591 static long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf, int version)  in ksys_msgctl()  argument
597 	if (msqid < 0 || cmd < 0)  in ksys_msgctl()
606 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in ksys_msgctl()
616 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in ksys_msgctl()
625 		return msgctl_down(ns, msqid, cmd, &msqid64.msg_perm,  in ksys_msgctl()
628 		return msgctl_down(ns, msqid, cmd, NULL, 0);  in ksys_msgctl()
634 SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
636 	return ksys_msgctl(msqid, cmd, buf, IPC_64);  in SYSCALL_DEFINE3()
640 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)  in ksys_old_msgctl()  argument
644 	return ksys_msgctl(msqid, cmd, buf, version);  in ksys_old_msgctl()
647 SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
649 	return ksys_old_msgctl(msqid, cmd, buf);  in SYSCALL_DEFINE3()
726 static long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr, int version)  in compat_ksys_msgctl()  argument
734 	if (msqid < 0 || cmd < 0)  in compat_ksys_msgctl()
741 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in compat_ksys_msgctl()
751 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in compat_ksys_msgctl()
760 		return msgctl_down(ns, msqid, cmd, &msqid64.msg_perm, msqid64.msg_qbytes);  in compat_ksys_msgctl()
762 		return msgctl_down(ns, msqid, cmd, NULL, 0);  in compat_ksys_msgctl()
768 COMPAT_SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
770 	return compat_ksys_msgctl(msqid, cmd, uptr, IPC_64);  in COMPAT_SYSCALL_DEFINE3()
774 long compat_ksys_old_msgctl(int msqid, int cmd, void __user *uptr)  in compat_ksys_old_msgctl()  argument
778 	return compat_ksys_msgctl(msqid, cmd, uptr, version);  in compat_ksys_old_msgctl()
781 COMPAT_SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
783 	return compat_ksys_old_msgctl(msqid, cmd, uptr);  in COMPAT_SYSCALL_DEFINE3()
842 static long do_msgsnd(int msqid, long mtype, void __user *mtext,  in do_msgsnd()  argument
853 	if (msgsz > ns->msg_ctlmax || (long) msgsz < 0 || msqid < 0)  in do_msgsnd()
866 	msq = msq_obtain_object_check(ns, msqid);  in do_msgsnd()
955 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,  in ksys_msgsnd()  argument
962 	return do_msgsnd(msqid, mtype, msgp->mtext, msgsz, msgflg);  in ksys_msgsnd()
965 SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,  in SYSCALL_DEFINE4()  argument
968 	return ksys_msgsnd(msqid, msgp, msgsz, msgflg);  in SYSCALL_DEFINE4()
978 long compat_ksys_msgsnd(int msqid, compat_uptr_t msgp,  in compat_ksys_msgsnd()  argument
986 	return do_msgsnd(msqid, mtype, up->mtext, (ssize_t)msgsz, msgflg);  in compat_ksys_msgsnd()
989 COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,  in COMPAT_SYSCALL_DEFINE4()  argument
992 	return compat_ksys_msgsnd(msqid, msgp, msgsz, msgflg);  in COMPAT_SYSCALL_DEFINE4()
1092 static long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg,  in do_msgrcv()  argument
1103 	if (msqid < 0 || (long) bufsz < 0)  in do_msgrcv()
1116 	msq = msq_obtain_object_check(ns, msqid);  in do_msgrcv()
1258 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,  in ksys_msgrcv()  argument
1261 	return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg, do_msg_fill);  in ksys_msgrcv()
1264 SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,  in SYSCALL_DEFINE5()  argument
1267 	return ksys_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);  in SYSCALL_DEFINE5()
1285 long compat_ksys_msgrcv(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz,  in compat_ksys_msgrcv()  argument
1288 	return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,  in compat_ksys_msgrcv()
1292 COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,  in COMPAT_SYSCALL_DEFINE5()  argument
1296 	return compat_ksys_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);  in COMPAT_SYSCALL_DEFINE5()