1 /* $Id: ipc.c,v 1.5 1999/12/09 00:41:00 davem Exp $
2 * ipc.c: Solaris IPC emulation
4 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
7 #include <linux/kernel.h>
8 #include <linux/types.h>
9 #include <linux/smp_lock.h>
10 #include <linux/wait.h>
12 #include <linux/shm.h>
13 #include <linux/sem.h>
14 #include <linux/msg.h>
16 #include <asm/uaccess.h>
17 #include <asm/string.h>
22 struct solaris_ipc_perm {
33 struct solaris_shmid_ds {
34 struct solaris_ipc_perm shm_perm;
37 unsigned short shm_lkcnt;
49 unsigned short shm_cv;
55 asmlinkage long solaris_shmsys(int cmd, u32 arg1, u32 arg2, u32 arg3)
57 int (*sys_ipc)(unsigned,int,int,unsigned long,void *,long) =
58 (int (*)(unsigned,int,int,unsigned long,void *,long))SYS(ipc);
67 ret = sys_ipc(SHMAT, arg1, arg3 & ~0x4000, (unsigned long)&raddr, (void *)A(arg2), 0);
69 if (ret >= 0) return (u32)raddr;
73 case 3: /* SHM_LOCK */
74 case 4: /* SHM_UNLOCK */
75 return sys_ipc(SHMCTL, arg1, (arg2 == 3) ? SHM_LOCK : SHM_UNLOCK, 0, NULL, 0);
76 case 10: /* IPC_RMID */
77 return sys_ipc(SHMCTL, arg1, IPC_RMID, 0, NULL, 0);
78 case 11: /* IPC_SET */
82 if (get_user (s.shm_perm.uid, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.uid)) ||
83 __get_user (s.shm_perm.gid, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.gid)) ||
84 __get_user (s.shm_perm.mode, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.mode)))
88 ret = sys_ipc(SHMCTL, arg1, IPC_SET, 0, &s, 0);
92 case 12: /* IPC_STAT */
98 ret = sys_ipc(SHMCTL, arg1, IPC_SET, 0, &s, 0);
100 if (get_user (s.shm_perm.uid, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.uid)) ||
101 __get_user (s.shm_perm.gid, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.gid)) ||
102 __get_user (s.shm_perm.cuid, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.cuid)) ||
103 __get_user (s.shm_perm.cgid, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.cgid)) ||
104 __get_user (s.shm_perm.mode, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.mode)) ||
105 __get_user (s.shm_perm.seq, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.seq)) ||
106 __get_user (s.shm_perm.key, &(((struct solaris_shmid_ds *)A(arg3))->shm_perm.key)) ||
107 __get_user (s.shm_segsz, &(((struct solaris_shmid_ds *)A(arg3))->shm_segsz)) ||
108 __get_user (s.shm_lpid, &(((struct solaris_shmid_ds *)A(arg3))->shm_lpid)) ||
109 __get_user (s.shm_cpid, &(((struct solaris_shmid_ds *)A(arg3))->shm_cpid)) ||
110 __get_user (s.shm_nattch, &(((struct solaris_shmid_ds *)A(arg3))->shm_nattch)) ||
111 __get_user (s.shm_atime, &(((struct solaris_shmid_ds *)A(arg3))->shm_atime)) ||
112 __get_user (s.shm_dtime, &(((struct solaris_shmid_ds *)A(arg3))->shm_dtime)) ||
113 __get_user (s.shm_ctime, &(((struct solaris_shmid_ds *)A(arg3))->shm_ctime)))
117 default: return -EINVAL;
120 return sys_ipc(SHMDT, 0, 0, 0, (void *)A(arg1), 0);
122 return sys_ipc(SHMGET, arg1, arg2, arg3, NULL, 0);