2 * sys_ipc() is the old de-multiplexer for the SysV IPC calls.
4 * This is really horribly ugly, and new architectures should just wire up
5 * the individual syscalls instead.
7 #include <linux/unistd.h>
9 #ifdef __ARCH_WANT_SYS_IPC
10 #include <linux/errno.h>
11 #include <linux/ipc.h>
12 #include <linux/shm.h>
13 #include <linux/syscalls.h>
14 #include <linux/uaccess.h>
16 SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
17 unsigned long, third, void __user *, ptr, long, fifth)
21 version = call >> 16; /* hack for backward compatibility */
26 return sys_semtimedop(first, (struct sembuf __user *)ptr,
29 return sys_semtimedop(first, (struct sembuf __user *)ptr,
31 (const struct timespec __user *)fifth);
34 return sys_semget(first, second, third);
39 if (get_user(fourth.__pad, (void __user * __user *) ptr))
41 return sys_semctl(first, second, third, fourth);
45 return sys_msgsnd(first, (struct msgbuf __user *) ptr,
50 struct ipc_kludge tmp;
54 if (copy_from_user(&tmp,
55 (struct ipc_kludge __user *) ptr,
58 return sys_msgrcv(first, tmp.msgp, second,
62 return sys_msgrcv(first,
63 (struct msgbuf __user *) ptr,
64 second, fifth, third);
67 return sys_msgget((key_t) first, second);
69 return sys_msgctl(first, second, (struct msqid_ds __user *)ptr);
75 ret = do_shmat(first, (char __user *)ptr,
79 return put_user(raddr, (unsigned long __user *) third);
83 * This was the entry point for kernel-originating calls
84 * from iBCS2 in 2.2 days.
89 return sys_shmdt((char __user *)ptr);
91 return sys_shmget(first, second, third);
93 return sys_shmctl(first, second,
94 (struct shmid_ds __user *) ptr);