kernel

linux-6.8.1/include/uapi/linux/ipc.h

@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_IPC_H
+#define _UAPI_LINUX_IPC_H
+
+#include <linux/types.h>
+
+#define IPC_PRIVATE ((__kernel_key_t) 0)  
+
+/* Obsolete, used only for backwards compatibility and libc5 compiles */
+struct ipc_perm
+{
+	__kernel_key_t	key;
+	__kernel_uid_t	uid;
+	__kernel_gid_t	gid;
+	__kernel_uid_t	cuid;
+	__kernel_gid_t	cgid;
+	__kernel_mode_t	mode; 
+	unsigned short	seq;
+};
+
+/* Include the definition of ipc64_perm */
+#include <asm/ipcbuf.h>
+
+/* resource get request flags */
+#define IPC_CREAT  00001000   /* create if key is nonexistent */
+#define IPC_EXCL   00002000   /* fail if key exists */
+#define IPC_NOWAIT 00004000   /* return error on wait */
+
+/* these fields are used by the DIPC package so the kernel as standard
+   should avoid using them if possible */
+   
+#define IPC_DIPC 00010000  /* make it distributed */
+#define IPC_OWN  00020000  /* this machine is the DIPC owner */
+
+/* 
+ * Control commands used with semctl, msgctl and shmctl 
+ * see also specific commands in sem.h, msg.h and shm.h
+ */
+#define IPC_RMID 0     /* remove resource */
+#define IPC_SET  1     /* set ipc_perm options */
+#define IPC_STAT 2     /* get ipc_perm options */
+#define IPC_INFO 3     /* see ipcs */
+
+/*
+ * Version flags for semctl, msgctl, and shmctl commands
+ * These are passed as bitflags or-ed with the actual command
+ */
+#define IPC_OLD 0	/* Old version (no 32-bit UID support on many
+			   architectures) */
+#define IPC_64  0x0100  /* New version (support 32-bit UIDs, bigger
+			   message sizes, etc. */
+
+/*
+ * These are used to wrap system calls.
+ *
+ * See architecture code for ugly details..
+ */
+struct ipc_kludge {
+	struct msgbuf __user *msgp;
+	long msgtyp;
+};
+
+#define SEMOP		 1
+#define SEMGET		 2
+#define SEMCTL		 3
+#define SEMTIMEDOP	 4
+#define MSGSND		11
+#define MSGRCV		12
+#define MSGGET		13
+#define MSGCTL		14
+#define SHMAT		21
+#define SHMDT		22
+#define SHMGET		23
+#define SHMCTL		24
+
+/* Used by the DIPC package, try and avoid reusing it */
+#define DIPC            25
+
+#define IPCCALL(version,op)	((version)<<16 | (op))
+
+
+#endif /* _UAPI_LINUX_IPC_H */