diff options
Diffstat (limited to 'arch/sparc64/solaris/ipc.c')
| -rw-r--r-- | arch/sparc64/solaris/ipc.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/sparc64/solaris/ipc.c b/arch/sparc64/solaris/ipc.c new file mode 100644 index 00000000000..8cef5fd57b2 --- /dev/null +++ b/arch/sparc64/solaris/ipc.c @@ -0,0 +1,127 @@ +/* $Id: ipc.c,v 1.5 1999/12/09 00:41:00 davem Exp $ + * ipc.c: Solaris IPC emulation + * + * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/smp_lock.h> +#include <linux/wait.h> +#include <linux/mm.h> +#include <linux/shm.h> +#include <linux/sem.h> +#include <linux/msg.h> + +#include <asm/uaccess.h> +#include <asm/string.h> +#include <asm/ipc.h> + +#include "conv.h" + +struct solaris_ipc_perm { + s32 uid; + s32 gid; + s32 cuid; + s32 cgid; + u32 mode; + u32 seq; + int key; + s32 pad[4]; +}; + +struct solaris_shmid_ds { + struct solaris_ipc_perm shm_perm; + int shm_segsz; + u32 shm_amp; + unsigned short shm_lkcnt; + char __padxx[2]; + s32 shm_lpid; + s32 shm_cpid; + u32 shm_nattch; + u32 shm_cnattch; + s32 shm_atime; + s32 shm_pad1; + s32 shm_dtime; + s32 shm_pad2; + s32 shm_ctime; + s32 shm_pad3; + unsigned short shm_cv; + char shm_pad4[2]; + u32 shm_sptas; + s32 shm_pad5[2]; +}; + +asmlinkage long solaris_shmsys(int cmd, u32 arg1, u32 arg2, u32 arg3) +{ + int (*sys_ipc)(unsigned,int,int,unsigned long,void __user *,long) = + (int (*)(unsigned,int,int,unsigned long,void __user *,long))SYS(ipc); + mm_segment_t old_fs; + unsigned long raddr; + int ret; + + switch (cmd) { + case 0: /* shmat */ + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = sys_ipc(SHMAT, arg1, arg3 & ~0x4000, (unsigned long)&raddr, A(arg2), 0); + set_fs(old_fs); + if (ret >= 0) return (u32)raddr; + else return ret; + case 1: /* shmctl */ + switch (arg2) { + case 3: /* SHM_LOCK */ + case 4: /* SHM_UNLOCK */ + return sys_ipc(SHMCTL, arg1, (arg2 == 3) ? SHM_LOCK : SHM_UNLOCK, 0, NULL, 0); + case 10: /* IPC_RMID */ + return sys_ipc(SHMCTL, arg1, IPC_RMID, 0, NULL, 0); + case 11: /* IPC_SET */ + { + struct shmid_ds s; + struct solaris_shmid_ds __user *p = A(arg3); + + if (get_user (s.shm_perm.uid, &p->shm_perm.uid) || + __get_user (s.shm_perm.gid, &p->shm_perm.gid) || + __get_user (s.shm_perm.mode, &p->shm_perm.mode)) + return -EFAULT; + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = sys_ipc(SHMCTL, arg1, IPC_SET, 0, &s, 0); + set_fs(old_fs); + return ret; + } + case 12: /* IPC_STAT */ + { + struct shmid_ds s; + struct solaris_shmid_ds __user *p = A(arg3); + + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = sys_ipc(SHMCTL, arg1, IPC_SET, 0, &s, 0); + set_fs(old_fs); + if (put_user (s.shm_perm.uid, &(p->shm_perm.uid)) || + __put_user (s.shm_perm.gid, &(p->shm_perm.gid)) || + __put_user (s.shm_perm.cuid, &(p->shm_perm.cuid)) || + __put_user (s.shm_perm.cgid, &(p->shm_perm.cgid)) || + __put_user (s.shm_perm.mode, &(p->shm_perm.mode)) || + __put_user (s.shm_perm.seq, &(p->shm_perm.seq)) || + __put_user (s.shm_perm.key, &(p->shm_perm.key)) || + __put_user (s.shm_segsz, &(p->shm_segsz)) || + __put_user (s.shm_lpid, &(p->shm_lpid)) || + __put_user (s.shm_cpid, &(p->shm_cpid)) || + __put_user (s.shm_nattch, &(p->shm_nattch)) || + __put_user (s.shm_atime, &(p->shm_atime)) || + __put_user (s.shm_dtime, &(p->shm_dtime)) || + __put_user (s.shm_ctime, &(p->shm_ctime))) + return -EFAULT; + return ret; + } + default: return -EINVAL; + } + case 2: /* shmdt */ + return sys_ipc(SHMDT, 0, 0, 0, A(arg1), 0); + case 3: /* shmget */ + return sys_ipc(SHMGET, arg1, arg2, arg3, NULL, 0); + } + return -EINVAL; +} |