ab60bc8488
related struct definitions out into the MI path. Invert the native ipc structs to the Linux ipc structs convesion logic. Since 64-bit variant of ipc structs has more precision convert native ipc structs to the 64-bit Linux ipc structs and then truncate 64-bit values into the non 64-bit if needed. Unlike Linux, return EOVERFLOW if the values do not fit. Fix SYSV IPC for 64-bit Linuxulator which never sets IPC_64 bit. MFC after: 1 month
159 lines
4.8 KiB
C
159 lines
4.8 KiB
C
/*-
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* Copyright (c) 2002 Maxim Sobolev <sobomax@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_IPC64_H_
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#define _LINUX_IPC64_H_
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/*
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* The generic ipc64_perm structure.
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* Note extra padding because this structure is passed back and forth
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* between kernel and user space.
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*
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* Pad space is left for:
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* - 32-bit mode_t on architectures that only had 16 bit
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* - 32-bit seq
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* - 2 miscellaneous 32-bit values
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*/
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struct l_ipc64_perm
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{
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l_key_t key;
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l_uid_t uid;
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l_gid_t gid;
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l_uid_t cuid;
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l_gid_t cgid;
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l_mode_t mode;
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/* pad if mode_t is ushort: */
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unsigned char __pad1[sizeof(l_int) - sizeof(l_mode_t)];
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l_ushort seq;
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l_ushort __pad2;
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l_ulong __unused1;
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l_ulong __unused2;
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};
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/*
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* The generic msqid64_ds structure fro x86 architecture.
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* Note extra padding because this structure is passed back and forth
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* between kernel and user space.
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*
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* Pad space is left for:
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* - 64-bit time_t to solve y2038 problem
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* - 2 miscellaneous 32-bit values
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*/
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struct l_msqid64_ds {
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struct l_ipc64_perm msg_perm;
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l_time_t msg_stime; /* last msgsnd time */
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#if !defined(__LP64__) || defined(COMPAT_LINUX32)
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l_ulong __unused1;
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#endif
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l_time_t msg_rtime; /* last msgrcv time */
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#if !defined(__LP64__) || defined(COMPAT_LINUX32)
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l_ulong __unused2;
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#endif
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l_time_t msg_ctime; /* last change time */
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#if !defined(__LP64__) || defined(COMPAT_LINUX32)
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l_ulong __unused3;
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#endif
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l_ulong msg_cbytes; /* current number of bytes on queue */
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l_ulong msg_qnum; /* number of messages in queue */
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l_ulong msg_qbytes; /* max number of bytes on queue */
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l_pid_t msg_lspid; /* pid of last msgsnd */
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l_pid_t msg_lrpid; /* last receive pid */
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l_ulong __unused4;
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l_ulong __unused5;
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};
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/*
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* The generic semid64_ds structure for x86 architecture.
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* Note extra padding because this structure is passed back and forth
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* between kernel and user space.
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*
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* Pad space is left for:
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* - 64-bit time_t to solve y2038 problem
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* - 2 miscellaneous 32-bit values
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*/
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struct l_semid64_ds {
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struct l_ipc64_perm sem_perm; /* permissions */
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l_time_t sem_otime; /* last semop time */
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l_ulong __unused1;
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l_time_t sem_ctime; /* last change time */
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l_ulong __unused2;
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l_ulong sem_nsems; /* no. of semaphores in array */
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l_ulong __unused3;
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l_ulong __unused4;
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};
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/*
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* The generic shmid64_ds structure for x86 architecture.
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* Note extra padding because this structure is passed back and forth
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* between kernel and user space.
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*
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* Pad space is left for:
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* - 64-bit time_t to solve y2038 problem
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* - 2 miscellaneous 32-bit values
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*/
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struct l_shmid64_ds {
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struct l_ipc64_perm shm_perm; /* operation perms */
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l_size_t shm_segsz; /* size of segment (bytes) */
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l_time_t shm_atime; /* last attach time */
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#if !defined(__LP64__) || defined(COMPAT_LINUX32)
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l_ulong __unused1;
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#endif
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l_time_t shm_dtime; /* last detach time */
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#if !defined(__LP64__) || defined(COMPAT_LINUX32)
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l_ulong __unused2;
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#endif
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l_time_t shm_ctime; /* last change time */
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#if !defined(__LP64__) || defined(COMPAT_LINUX32)
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l_ulong __unused3;
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#endif
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l_pid_t shm_cpid; /* pid of creator */
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l_pid_t shm_lpid; /* pid of last operator */
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l_ulong shm_nattch; /* no. of current attaches */
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l_ulong __unused4;
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l_ulong __unused5;
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};
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struct l_shminfo64 {
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l_ulong shmmax;
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l_ulong shmmin;
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l_ulong shmmni;
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l_ulong shmseg;
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l_ulong shmall;
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l_ulong __unused1;
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l_ulong __unused2;
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l_ulong __unused3;
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l_ulong __unused4;
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};
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#endif /* !LINUX_IPC64_H_ */
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