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Reduce code duplication between MD Linux code by moving SYSV IPC 64-bit

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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
This commit is contained in:
Dmitry Chagin 2017-03-07 17:07:16 +00:00
parent 0368307dd3
commit ab60bc8488
7 changed files with 273 additions and 525 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/amd64/linux/linux.h
View File

@ -69,7 +69,9 @@ typedef l_long l_clock_t;
typedef l_int l_daddr_t;
typedef l_ulong l_dev_t;
typedef l_uint l_gid_t;
typedef l_ushort l_gid16_t;
typedef l_uint l_uid_t;
typedef l_ushort l_uid16_t;
typedef l_ulong l_ino_t;
typedef l_int l_key_t;
typedef l_long l_loff_t;
@ -381,16 +383,6 @@ union l_semun {
l_uintptr_t __pad;
};
struct l_ipc_perm {
l_key_t key;
l_uid_t uid;
l_gid_t gid;
l_uid_t cuid;
l_gid_t cgid;
l_ushort mode;
l_ushort seq;
};
/*
* Socket defines
*/

10
sys/amd64/linux32/linux.h
View File

@ -474,16 +474,6 @@ union l_semun {
l_uintptr_t __pad;
} __packed;
struct l_ipc_perm {
l_key_t key;
l_uid16_t uid;
l_gid16_t gid;
l_uid16_t cuid;
l_gid16_t cgid;
l_ushort mode;
l_ushort seq;
};
/*
* Socket defines
*/

145
sys/amd64/linux32/linux32_ipc64.h
View File

@ -1,145 +0,0 @@
/*-
* Copyright (c) 2002 Maxim Sobolev <sobomax@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _AMD64_LINUX_LINUX_IPC64_H_
#define _AMD64_LINUX_LINUX_IPC64_H_
/*
* The ipc64_perm structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 32-bit mode_t and seq
* - 2 miscellaneous 32-bit values
*/
struct l_ipc64_perm
{
l_key_t key;
l_uid_t uid;
l_gid_t gid;
l_uid_t cuid;
l_gid_t cgid;
l_mode_t mode;
l_ushort __pad1;
l_ushort seq;
l_ushort __pad2;
l_ulong __unused1;
l_ulong __unused2;
} __packed;
/*
* The msqid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct l_msqid64_ds {
struct l_ipc64_perm msg_perm;
l_time_t msg_stime; /* last msgsnd time */
l_ulong __unused1;
l_time_t msg_rtime; /* last msgrcv time */
l_ulong __unused2;
l_time_t msg_ctime; /* last change time */
l_ulong __unused3;
l_ulong msg_cbytes; /* current number of bytes on queue */
l_ulong msg_qnum; /* number of messages in queue */
l_ulong msg_qbytes; /* max number of bytes on queue */
l_pid_t msg_lspid; /* pid of last msgsnd */
l_pid_t msg_lrpid; /* last receive pid */
l_ulong __unused4;
l_ulong __unused5;
} __packed;
/*
* The semid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct l_semid64_ds {
struct l_ipc64_perm sem_perm; /* permissions */
l_time_t sem_otime; /* last semop time */
l_ulong __unused1;
l_time_t sem_ctime; /* last change time */
l_ulong __unused2;
l_ulong sem_nsems; /* no. of semaphores in array */
l_ulong __unused3;
l_ulong __unused4;
} __packed;
/*
* The shmid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct l_shmid64_ds {
struct l_ipc64_perm shm_perm; /* operation perms */
l_size_t shm_segsz; /* size of segment (bytes) */
l_time_t shm_atime; /* last attach time */
l_ulong __unused1;
l_time_t shm_dtime; /* last detach time */
l_ulong __unused2;
l_time_t shm_ctime; /* last change time */
l_ulong __unused3;
l_pid_t shm_cpid; /* pid of creator */
l_pid_t shm_lpid; /* pid of last operator */
l_ulong shm_nattch; /* no. of current attaches */
l_ulong __unused4;
l_ulong __unused5;
} __packed;
struct l_shminfo64 {
l_ulong shmmax;
l_ulong shmmin;
l_ulong shmmni;
l_ulong shmseg;
l_ulong shmall;
l_ulong __unused1;
l_ulong __unused2;
l_ulong __unused3;
l_ulong __unused4;
} __packed;
#endif /* !_AMD64_LINUX_LINUX_IPC64_H_ */

440
sys/compat/linux/linux_ipc.c
View File

@ -44,15 +44,27 @@ __FBSDID("$FreeBSD$");
#ifdef COMPAT_LINUX32
#include <machine/../linux32/linux.h>
#include <machine/../linux32/linux32_proto.h>
#include <machine/../linux32/linux32_ipc64.h>
#else
#include <machine/../linux/linux.h>
#include <machine/../linux/linux_proto.h>
#include <machine/../linux/linux_ipc64.h>
#endif
#include <compat/linux/linux_ipc.h>
#include <compat/linux/linux_ipc64.h>
#include <compat/linux/linux_util.h>
/*
* old, pre 2.4 kernel
*/
struct l_ipc_perm {
l_key_t key;
l_uid16_t uid;
l_gid16_t gid;
l_uid16_t cuid;
l_gid16_t cgid;
l_ushort mode;
l_ushort seq;
};
struct l_seminfo {
l_int semmap;
l_int semmni;
@ -95,7 +107,7 @@ struct l_msginfo {
};
static void
bsd_to_linux_shminfo( struct shminfo *bpp, struct l_shminfo *lpp)
bsd_to_linux_shminfo( struct shminfo *bpp, struct l_shminfo64 *lpp)
{
lpp->shmmax = bpp->shmmax;
@ -109,16 +121,16 @@ static void
bsd_to_linux_shm_info( struct shm_info *bpp, struct l_shm_info *lpp)
{
lpp->used_ids = bpp->used_ids ;
lpp->shm_tot = bpp->shm_tot ;
lpp->shm_rss = bpp->shm_rss ;
lpp->shm_swp = bpp->shm_swp ;
lpp->swap_attempts = bpp->swap_attempts ;
lpp->swap_successes = bpp->swap_successes ;
lpp->used_ids = bpp->used_ids;
lpp->shm_tot = bpp->shm_tot;
lpp->shm_rss = bpp->shm_rss;
lpp->shm_swp = bpp->shm_swp;
lpp->swap_attempts = bpp->swap_attempts;
lpp->swap_successes = bpp->swap_successes;
}
static void
linux_to_bsd_ipc_perm(struct l_ipc_perm *lpp, struct ipc_perm *bpp)
linux_to_bsd_ipc_perm(struct l_ipc64_perm *lpp, struct ipc_perm *bpp)
{
bpp->key = lpp->key;
@ -131,7 +143,7 @@ linux_to_bsd_ipc_perm(struct l_ipc_perm *lpp, struct ipc_perm *bpp)
}
static void
bsd_to_linux_ipc_perm(struct ipc_perm *bpp, struct l_ipc_perm *lpp)
bsd_to_linux_ipc_perm(struct ipc_perm *bpp, struct l_ipc64_perm *lpp)
{
lpp->key = bpp->key;
@ -185,29 +197,27 @@ struct l_shmid_ds {
};
static void
linux_to_bsd_semid_ds(struct l_semid_ds *lsp, struct semid_ds *bsp)
linux_to_bsd_semid_ds(struct l_semid64_ds *lsp, struct semid_ds *bsp)
{
linux_to_bsd_ipc_perm(&lsp->sem_perm, &bsp->sem_perm);
bsp->sem_otime = lsp->sem_otime;
bsp->sem_ctime = lsp->sem_ctime;
bsp->sem_nsems = lsp->sem_nsems;
bsp->sem_base = PTRIN(lsp->sem_base);
}
static void
bsd_to_linux_semid_ds(struct semid_ds *bsp, struct l_semid_ds *lsp)
bsd_to_linux_semid_ds(struct semid_ds *bsp, struct l_semid64_ds *lsp)
{
bsd_to_linux_ipc_perm(&bsp->sem_perm, &lsp->sem_perm);
lsp->sem_otime = bsp->sem_otime;
lsp->sem_ctime = bsp->sem_ctime;
lsp->sem_nsems = bsp->sem_nsems;
lsp->sem_base = PTROUT(bsp->sem_base);
}
static void
linux_to_bsd_shmid_ds(struct l_shmid_ds *lsp, struct shmid_ds *bsp)
linux_to_bsd_shmid_ds(struct l_shmid64_ds *lsp, struct shmid_ds *bsp)
{
linux_to_bsd_ipc_perm(&lsp->shm_perm, &bsp->shm_perm);
@ -221,28 +231,21 @@ linux_to_bsd_shmid_ds(struct l_shmid_ds *lsp, struct shmid_ds *bsp)
}
static void
bsd_to_linux_shmid_ds(struct shmid_ds *bsp, struct l_shmid_ds *lsp)
bsd_to_linux_shmid_ds(struct shmid_ds *bsp, struct l_shmid64_ds *lsp)
{
bsd_to_linux_ipc_perm(&bsp->shm_perm, &lsp->shm_perm);
if (bsp->shm_segsz > INT_MAX)
lsp->shm_segsz = INT_MAX;
else
lsp->shm_segsz = bsp->shm_segsz;
lsp->shm_segsz = bsp->shm_segsz;
lsp->shm_lpid = bsp->shm_lpid;
lsp->shm_cpid = bsp->shm_cpid;
if (bsp->shm_nattch > SHRT_MAX)
lsp->shm_nattch = SHRT_MAX;
else
lsp->shm_nattch = bsp->shm_nattch;
lsp->shm_nattch = bsp->shm_nattch;
lsp->shm_atime = bsp->shm_atime;
lsp->shm_dtime = bsp->shm_dtime;
lsp->shm_ctime = bsp->shm_ctime;
lsp->private3 = 0;
}
static void
linux_to_bsd_msqid_ds(struct l_msqid_ds *lsp, struct msqid_ds *bsp)
linux_to_bsd_msqid_ds(struct l_msqid64_ds *lsp, struct msqid_ds *bsp)
{
linux_to_bsd_ipc_perm(&lsp->msg_perm, &bsp->msg_perm);
@ -257,7 +260,7 @@ linux_to_bsd_msqid_ds(struct l_msqid_ds *lsp, struct msqid_ds *bsp)
}
static void
bsd_to_linux_msqid_ds(struct msqid_ds *bsp, struct l_msqid_ds *lsp)
bsd_to_linux_msqid_ds(struct msqid_ds *bsp, struct l_msqid64_ds *lsp)
{
bsd_to_linux_ipc_perm(&bsp->msg_perm, &lsp->msg_perm);
@ -271,11 +274,10 @@ bsd_to_linux_msqid_ds(struct msqid_ds *bsp, struct l_msqid_ds *lsp)
lsp->msg_ctime = bsp->msg_ctime;
}
static void
linux_ipc_perm_to_ipc64_perm(struct l_ipc_perm *in, struct l_ipc64_perm *out)
static int
linux_ipc64_perm_to_ipc_perm(struct l_ipc64_perm *in, struct l_ipc_perm *out)
{
/* XXX: do we really need to do something here? */
out->key = in->key;
out->uid = in->uid;
out->gid = in->gid;
@ -283,186 +285,222 @@ linux_ipc_perm_to_ipc64_perm(struct l_ipc_perm *in, struct l_ipc64_perm *out)
out->cgid = in->cgid;
out->mode = in->mode;
out->seq = in->seq;
/* Linux does not check overflow */
if (out->uid != in->uid || out->gid != in->gid ||
out->cuid != in->cuid || out->cgid != in->cgid ||
out->mode != in->mode)
return (EOVERFLOW);
else
return (0);
}
static int
linux_msqid_pullup(l_int ver, struct l_msqid_ds *linux_msqid, caddr_t uaddr)
linux_msqid_pullup(l_int ver, struct l_msqid64_ds *linux_msqid64, caddr_t uaddr)
{
struct l_msqid64_ds linux_msqid64;
struct l_msqid_ds linux_msqid;
int error;
if (ver == LINUX_IPC_64) {
error = copyin(uaddr, &linux_msqid64, sizeof(linux_msqid64));
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyin(uaddr, linux_msqid64, sizeof(*linux_msqid64)));
else {
error = copyin(uaddr, &linux_msqid, sizeof(linux_msqid));
if (error != 0)
return (error);
bzero(linux_msqid, sizeof(*linux_msqid));
bzero(linux_msqid64, sizeof(*linux_msqid64));
linux_msqid->msg_perm.uid = linux_msqid64.msg_perm.uid;
linux_msqid->msg_perm.gid = linux_msqid64.msg_perm.gid;
linux_msqid->msg_perm.mode = linux_msqid64.msg_perm.mode;
if (linux_msqid64.msg_qbytes > USHRT_MAX)
linux_msqid->msg_lqbytes = linux_msqid64.msg_qbytes;
linux_msqid64->msg_perm.uid = linux_msqid.msg_perm.uid;
linux_msqid64->msg_perm.gid = linux_msqid.msg_perm.gid;
linux_msqid64->msg_perm.mode = linux_msqid.msg_perm.mode;
if (linux_msqid.msg_qbytes == 0)
linux_msqid64->msg_qbytes = linux_msqid.msg_lqbytes;
else
linux_msqid->msg_qbytes = linux_msqid64.msg_qbytes;
} else
error = copyin(uaddr, linux_msqid, sizeof(*linux_msqid));
return (error);
linux_msqid64->msg_qbytes = linux_msqid.msg_qbytes;
return (0);
}
}
static int
linux_msqid_pushdown(l_int ver, struct l_msqid_ds *linux_msqid, caddr_t uaddr)
linux_msqid_pushdown(l_int ver, struct l_msqid64_ds *linux_msqid64, caddr_t uaddr)
{
struct l_msqid64_ds linux_msqid64;
if (ver == LINUX_IPC_64) {
bzero(&linux_msqid64, sizeof(linux_msqid64));
linux_ipc_perm_to_ipc64_perm(&linux_msqid->msg_perm,
&linux_msqid64.msg_perm);
linux_msqid64.msg_stime = linux_msqid->msg_stime;
linux_msqid64.msg_rtime = linux_msqid->msg_rtime;
linux_msqid64.msg_ctime = linux_msqid->msg_ctime;
if (linux_msqid->msg_cbytes == 0)
linux_msqid64.msg_cbytes = linux_msqid->msg_lcbytes;
else
linux_msqid64.msg_cbytes = linux_msqid->msg_cbytes;
linux_msqid64.msg_qnum = linux_msqid->msg_qnum;
if (linux_msqid->msg_qbytes == 0)
linux_msqid64.msg_qbytes = linux_msqid->msg_lqbytes;
else
linux_msqid64.msg_qbytes = linux_msqid->msg_qbytes;
linux_msqid64.msg_lspid = linux_msqid->msg_lspid;
linux_msqid64.msg_lrpid = linux_msqid->msg_lrpid;
return (copyout(&linux_msqid64, uaddr, sizeof(linux_msqid64)));
} else
return (copyout(linux_msqid, uaddr, sizeof(*linux_msqid)));
}
static int
linux_semid_pullup(l_int ver, struct l_semid_ds *linux_semid, caddr_t uaddr)
{
struct l_semid64_ds linux_semid64;
struct l_msqid_ds linux_msqid;
int error;
if (ver == LINUX_IPC_64) {
error = copyin(uaddr, &linux_semid64, sizeof(linux_semid64));
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyout(linux_msqid64, uaddr, sizeof(*linux_msqid64)));
else {
bzero(&linux_msqid, sizeof(linux_msqid));
error = linux_ipc64_perm_to_ipc_perm(&linux_msqid64->msg_perm,
&linux_msqid.msg_perm);
if (error != 0)
return (error);
bzero(linux_semid, sizeof(*linux_semid));
linux_msqid.msg_stime = linux_msqid64->msg_stime;
linux_msqid.msg_rtime = linux_msqid64->msg_rtime;
linux_msqid.msg_ctime = linux_msqid64->msg_ctime;
linux_semid->sem_perm.uid = linux_semid64.sem_perm.uid;
linux_semid->sem_perm.gid = linux_semid64.sem_perm.gid;
linux_semid->sem_perm.mode = linux_semid64.sem_perm.mode;
} else
error = copyin(uaddr, linux_semid, sizeof(*linux_semid));
if (linux_msqid64->msg_cbytes > USHRT_MAX)
linux_msqid.msg_cbytes = USHRT_MAX;
else
linux_msqid.msg_cbytes = linux_msqid64->msg_cbytes;
linux_msqid.msg_lcbytes = linux_msqid64->msg_cbytes;
if (linux_msqid64->msg_qnum > USHRT_MAX)
linux_msqid.msg_qnum = linux_msqid64->msg_qnum;
else
linux_msqid.msg_qnum = linux_msqid64->msg_qnum;
if (linux_msqid64->msg_qbytes > USHRT_MAX)
linux_msqid.msg_qbytes = linux_msqid64->msg_qbytes;
else
linux_msqid.msg_qbytes = linux_msqid64->msg_qbytes;
linux_msqid.msg_lqbytes = linux_msqid64->msg_qbytes;
linux_msqid.msg_lspid = linux_msqid64->msg_lspid;
linux_msqid.msg_lrpid = linux_msqid64->msg_lrpid;
return (error);
/* Linux does not check overflow */
if (linux_msqid.msg_stime != linux_msqid64->msg_stime ||
linux_msqid.msg_rtime != linux_msqid64->msg_rtime ||
linux_msqid.msg_ctime != linux_msqid64->msg_ctime)
return (EOVERFLOW);
return (copyout(&linux_msqid, uaddr, sizeof(linux_msqid)));
}
}
static int
linux_semid_pushdown(l_int ver, struct l_semid_ds *linux_semid, caddr_t uaddr)
linux_semid_pullup(l_int ver, struct l_semid64_ds *linux_semid64, caddr_t uaddr)
{
struct l_semid64_ds linux_semid64;
if (ver == LINUX_IPC_64) {
bzero(&linux_semid64, sizeof(linux_semid64));
linux_ipc_perm_to_ipc64_perm(&linux_semid->sem_perm,
&linux_semid64.sem_perm);
linux_semid64.sem_otime = linux_semid->sem_otime;
linux_semid64.sem_ctime = linux_semid->sem_ctime;
linux_semid64.sem_nsems = linux_semid->sem_nsems;
return (copyout(&linux_semid64, uaddr, sizeof(linux_semid64)));
} else
return (copyout(linux_semid, uaddr, sizeof(*linux_semid)));
}
static int
linux_shmid_pullup(l_int ver, struct l_shmid_ds *linux_shmid, caddr_t uaddr)
{
struct l_shmid64_ds linux_shmid64;
struct l_semid_ds linux_semid;
int error;
if (ver == LINUX_IPC_64) {
error = copyin(uaddr, &linux_shmid64, sizeof(linux_shmid64));
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyin(uaddr, linux_semid64, sizeof(*linux_semid64)));
else {
error = copyin(uaddr, &linux_semid, sizeof(linux_semid));
if (error != 0)
return (error);
bzero(linux_shmid, sizeof(*linux_shmid));
bzero(linux_semid64, sizeof(*linux_semid64));
linux_shmid->shm_perm.uid = linux_shmid64.shm_perm.uid;
linux_shmid->shm_perm.gid = linux_shmid64.shm_perm.gid;
linux_shmid->shm_perm.mode = linux_shmid64.shm_perm.mode;
} else
error = copyin(uaddr, linux_shmid, sizeof(*linux_shmid));
return (error);
linux_semid64->sem_perm.uid = linux_semid.sem_perm.uid;
linux_semid64->sem_perm.gid = linux_semid.sem_perm.gid;
linux_semid64->sem_perm.mode = linux_semid.sem_perm.mode;
return (0);
}
}
static int
linux_shmid_pushdown(l_int ver, struct l_shmid_ds *linux_shmid, caddr_t uaddr)
linux_semid_pushdown(l_int ver, struct l_semid64_ds *linux_semid64, caddr_t uaddr)
{
struct l_shmid64_ds linux_shmid64;
struct l_semid_ds linux_semid;
int error;
/*
* XXX: This is backwards and loses information in shm_nattch
* and shm_segsz. We should probably either expose the BSD
* shmid structure directly and convert it to either the
* non-64 or 64 variant directly or the code should always
* convert to the 64 variant and then truncate values into the
* non-64 variant if needed since the 64 variant has more
* precision.
*/
if (ver == LINUX_IPC_64) {
bzero(&linux_shmid64, sizeof(linux_shmid64));
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyout(linux_semid64, uaddr, sizeof(*linux_semid64)));
else {
bzero(&linux_semid, sizeof(linux_semid));
linux_ipc_perm_to_ipc64_perm(&linux_shmid->shm_perm,
&linux_shmid64.shm_perm);
error = linux_ipc64_perm_to_ipc_perm(&linux_semid64->sem_perm,
&linux_semid.sem_perm);
if (error != 0)
return (error);
linux_shmid64.shm_segsz = linux_shmid->shm_segsz;
linux_shmid64.shm_atime = linux_shmid->shm_atime;
linux_shmid64.shm_dtime = linux_shmid->shm_dtime;
linux_shmid64.shm_ctime = linux_shmid->shm_ctime;
linux_shmid64.shm_cpid = linux_shmid->shm_cpid;
linux_shmid64.shm_lpid = linux_shmid->shm_lpid;
linux_shmid64.shm_nattch = linux_shmid->shm_nattch;
linux_semid.sem_otime = linux_semid64->sem_otime;
linux_semid.sem_ctime = linux_semid64->sem_ctime;
linux_semid.sem_nsems = linux_semid64->sem_nsems;
return (copyout(&linux_shmid64, uaddr, sizeof(linux_shmid64)));
} else
return (copyout(linux_shmid, uaddr, sizeof(*linux_shmid)));
/* Linux does not check overflow */
if (linux_semid.sem_otime != linux_semid64->sem_otime ||
linux_semid.sem_ctime != linux_semid64->sem_ctime ||
linux_semid.sem_nsems != linux_semid64->sem_nsems)
return (EOVERFLOW);
return (copyout(&linux_semid, uaddr, sizeof(linux_semid)));
}
}
static int
linux_shminfo_pushdown(l_int ver, struct l_shminfo *linux_shminfo,
linux_shmid_pullup(l_int ver, struct l_shmid64_ds *linux_shmid64, caddr_t uaddr)
{
struct l_shmid_ds linux_shmid;
int error;
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyin(uaddr, linux_shmid64, sizeof(*linux_shmid64)));
else {
error = copyin(uaddr, &linux_shmid, sizeof(linux_shmid));
if (error != 0)
return (error);
bzero(linux_shmid64, sizeof(*linux_shmid64));
linux_shmid64->shm_perm.uid = linux_shmid.shm_perm.uid;
linux_shmid64->shm_perm.gid = linux_shmid.shm_perm.gid;
linux_shmid64->shm_perm.mode = linux_shmid.shm_perm.mode;
return (0);
}
}
static int
linux_shmid_pushdown(l_int ver, struct l_shmid64_ds *linux_shmid64, caddr_t uaddr)
{
struct l_shmid_ds linux_shmid;
int error;
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyout(linux_shmid64, uaddr, sizeof(*linux_shmid64)));
else {
bzero(&linux_shmid, sizeof(linux_shmid));
error = linux_ipc64_perm_to_ipc_perm(&linux_shmid64->shm_perm,
&linux_shmid.shm_perm);
if (error != 0)
return (error);
linux_shmid.shm_segsz = linux_shmid64->shm_segsz;
linux_shmid.shm_atime = linux_shmid64->shm_atime;
linux_shmid.shm_dtime = linux_shmid64->shm_dtime;
linux_shmid.shm_ctime = linux_shmid64->shm_ctime;
linux_shmid.shm_cpid = linux_shmid64->shm_cpid;
linux_shmid.shm_lpid = linux_shmid64->shm_lpid;
linux_shmid.shm_nattch = linux_shmid64->shm_nattch;
/* Linux does not check overflow */
if (linux_shmid.shm_segsz != linux_shmid64->shm_segsz ||
linux_shmid.shm_atime != linux_shmid64->shm_atime ||
linux_shmid.shm_dtime != linux_shmid64->shm_dtime ||
linux_shmid.shm_ctime != linux_shmid64->shm_ctime ||
linux_shmid.shm_cpid != linux_shmid64->shm_cpid ||
linux_shmid.shm_lpid != linux_shmid64->shm_lpid ||
linux_shmid.shm_nattch != linux_shmid64->shm_nattch)
return (EOVERFLOW);
return (copyout(&linux_shmid, uaddr, sizeof(linux_shmid)));
}
}
static int
linux_shminfo_pushdown(l_int ver, struct l_shminfo64 *linux_shminfo64,
caddr_t uaddr)
{
struct l_shminfo64 linux_shminfo64;
struct l_shminfo linux_shminfo;
if (ver == LINUX_IPC_64) {
bzero(&linux_shminfo64, sizeof(linux_shminfo64));
if (ver == LINUX_IPC_64 || SV_CURPROC_FLAG(SV_LP64))
return (copyout(linux_shminfo64, uaddr,
sizeof(*linux_shminfo64)));
else {
bzero(&linux_shminfo, sizeof(linux_shminfo));
linux_shminfo64.shmmax = linux_shminfo->shmmax;
linux_shminfo64.shmmin = linux_shminfo->shmmin;
linux_shminfo64.shmmni = linux_shminfo->shmmni;
linux_shminfo64.shmseg = linux_shminfo->shmseg;
linux_shminfo64.shmall = linux_shminfo->shmall;
linux_shminfo.shmmax = linux_shminfo64->shmmax;
linux_shminfo.shmmin = linux_shminfo64->shmmin;
linux_shminfo.shmmni = linux_shminfo64->shmmni;
linux_shminfo.shmseg = linux_shminfo64->shmseg;
linux_shminfo.shmall = linux_shminfo64->shmall;
return (copyout(&linux_shminfo64, uaddr,
sizeof(linux_shminfo64)));
} else
return (copyout(linux_shminfo, uaddr, sizeof(*linux_shminfo)));
return (copyout(&linux_shminfo, uaddr,
sizeof(linux_shminfo)));
}
}
int
@ -500,7 +538,7 @@ linux_semget(struct thread *td, struct linux_semget_args *args)
int
linux_semctl(struct thread *td, struct linux_semctl_args *args)
{
struct l_semid_ds linux_semid;
struct l_semid64_ds linux_semid64;
struct l_seminfo linux_seminfo;
struct semid_ds semid;
union semun semun;
@ -530,29 +568,35 @@ linux_semctl(struct thread *td, struct linux_semctl_args *args)
case LINUX_IPC_SET:
cmd = IPC_SET;
error = linux_semid_pullup(args->cmd & LINUX_IPC_64,
&linux_semid, PTRIN(args->arg.buf));
&linux_semid64, PTRIN(args->arg.buf));
if (error != 0)
return (error);
linux_to_bsd_semid_ds(&linux_semid, &semid);
linux_to_bsd_semid_ds(&linux_semid64, &semid);
semun.buf = &semid;
return (kern_semctl(td, args->semid, args->semnum, cmd, &semun,
td->td_retval));
case LINUX_IPC_STAT:
case LINUX_SEM_STAT:
if ((args->cmd & ~LINUX_IPC_64) == LINUX_IPC_STAT)
cmd = IPC_STAT;
else
cmd = SEM_STAT;
cmd = IPC_STAT;
semun.buf = &semid;
error = kern_semctl(td, args->semid, args->semnum, cmd, &semun,
&rval);
if (error != 0)
return (error);
bsd_to_linux_semid_ds(&semid, &linux_semid);
bsd_to_linux_semid_ds(&semid, &linux_semid64);
return (linux_semid_pushdown(args->cmd & LINUX_IPC_64,
&linux_semid64, PTRIN(args->arg.buf)));
case LINUX_SEM_STAT:
cmd = SEM_STAT;
semun.buf = &semid;
error = kern_semctl(td, args->semid, args->semnum, cmd, &semun,
&rval);
if (error != 0)
return (error);
bsd_to_linux_semid_ds(&semid, &linux_semid64);
error = linux_semid_pushdown(args->cmd & LINUX_IPC_64,
&linux_semid, PTRIN(args->arg.buf));
&linux_semid64, PTRIN(args->arg.buf));
if (error == 0)
td->td_retval[0] = (cmd == SEM_STAT) ? rval : 0;
td->td_retval[0] = rval;
return (error);
case LINUX_IPC_INFO:
case LINUX_SEM_INFO:
@ -575,15 +619,18 @@ linux_semctl(struct thread *td, struct linux_semctl_args *args)
PTRIN(args->arg.buf), sizeof(linux_seminfo));
if (error != 0)
return (error);
/*
* TODO: Linux return the last assigned id, not the semmni.
*/
td->td_retval[0] = seminfo.semmni;
return (0); /* No need for __semctl call */
return (0);
case LINUX_GETALL:
cmd = GETALL;
semun.val = args->arg.val;
semun.array = PTRIN(args->arg.array);
break;
case LINUX_SETALL:
cmd = SETALL;
semun.val = args->arg.val;
semun.array = PTRIN(args->arg.array);
break;
default:
linux_msg(td, "ipc type %d is not implemented",
@ -649,7 +696,7 @@ int
linux_msgctl(struct thread *td, struct linux_msgctl_args *args)
{
int error, bsd_cmd;
struct l_msqid_ds linux_msqid;
struct l_msqid64_ds linux_msqid64;
struct msqid_ds bsd_msqid;
bsd_cmd = args->cmd & ~LINUX_IPC_64;
@ -689,10 +736,10 @@ linux_msgctl(struct thread *td, struct linux_msgctl_args *args)
case LINUX_IPC_SET:
error = linux_msqid_pullup(args->cmd & LINUX_IPC_64,
&linux_msqid, PTRIN(args->buf));
&linux_msqid64, PTRIN(args->buf));
if (error != 0)
return (error);
linux_to_bsd_msqid_ds(&linux_msqid, &bsd_msqid);
linux_to_bsd_msqid_ds(&linux_msqid64, &bsd_msqid);
break;
case LINUX_IPC_RMID:
@ -705,14 +752,17 @@ linux_msgctl(struct thread *td, struct linux_msgctl_args *args)
}
error = kern_msgctl(td, args->msqid, bsd_cmd, &bsd_msqid);
if (error != 0)
if (error != 0) {
if (bsd_cmd == LINUX_IPC_RMID && error == EACCES)
return (EPERM);
if (bsd_cmd != LINUX_IPC_RMID || error != EINVAL)
return (error);
}
if (bsd_cmd == LINUX_IPC_STAT) {
bsd_to_linux_msqid_ds(&bsd_msqid, &linux_msqid);
bsd_to_linux_msqid_ds(&bsd_msqid, &linux_msqid64);
return (linux_msqid_pushdown(args->cmd & LINUX_IPC_64,
&linux_msqid, PTRIN(args->buf)));
&linux_msqid64, PTRIN(args->buf)));
}
return (0);
@ -774,8 +824,8 @@ linux_shmget(struct thread *td, struct linux_shmget_args *args)
int
linux_shmctl(struct thread *td, struct linux_shmctl_args *args)
{
struct l_shmid_ds linux_shmid;
struct l_shminfo linux_shminfo;
struct l_shmid64_ds linux_shmid64;
struct l_shminfo64 linux_shminfo64;
struct l_shm_info linux_shm_info;
struct shmid_ds bsd_shmid;
int error;
@ -791,10 +841,10 @@ linux_shmctl(struct thread *td, struct linux_shmctl_args *args)
if (error != 0)
return (error);
bsd_to_linux_shminfo(&bsd_shminfo, &linux_shminfo);
bsd_to_linux_shminfo(&bsd_shminfo, &linux_shminfo64);
return (linux_shminfo_pushdown(args->cmd & LINUX_IPC_64,
&linux_shminfo, PTRIN(args->buf)));
&linux_shminfo64, PTRIN(args->buf)));
}
case LINUX_SHM_INFO: {
@ -819,10 +869,10 @@ linux_shmctl(struct thread *td, struct linux_shmctl_args *args)
if (error != 0)
return (error);
bsd_to_linux_shmid_ds(&bsd_shmid, &linux_shmid);
bsd_to_linux_shmid_ds(&bsd_shmid, &linux_shmid64);
return (linux_shmid_pushdown(args->cmd & LINUX_IPC_64,
&linux_shmid, PTRIN(args->buf)));
&linux_shmid64, PTRIN(args->buf)));
case LINUX_SHM_STAT:
/* Perform shmctl wanting removed segments lookup */
@ -831,18 +881,18 @@ linux_shmctl(struct thread *td, struct linux_shmctl_args *args)
if (error != 0)
return (error);
bsd_to_linux_shmid_ds(&bsd_shmid, &linux_shmid);
bsd_to_linux_shmid_ds(&bsd_shmid, &linux_shmid64);
return (linux_shmid_pushdown(args->cmd & LINUX_IPC_64,
&linux_shmid, PTRIN(args->buf)));
&linux_shmid64, PTRIN(args->buf)));
case LINUX_IPC_SET:
error = linux_shmid_pullup(args->cmd & LINUX_IPC_64,
&linux_shmid, PTRIN(args->buf));
&linux_shmid64, PTRIN(args->buf));
if (error != 0)
return (error);
linux_to_bsd_shmid_ds(&linux_shmid, &bsd_shmid);
linux_to_bsd_shmid_ds(&linux_shmid64, &bsd_shmid);
/* Perform shmctl wanting removed segments lookup */
return (kern_shmctl(td, args->shmid, IPC_SET,
@ -855,10 +905,10 @@ linux_shmctl(struct thread *td, struct linux_shmctl_args *args)
buf = NULL;
else {
error = linux_shmid_pullup(args->cmd & LINUX_IPC_64,
&linux_shmid, PTRIN(args->buf));
&linux_shmid64, PTRIN(args->buf));
if (error != 0)
return (error);
linux_to_bsd_shmid_ds(&linux_shmid, &bsd_shmid);
linux_to_bsd_shmid_ds(&linux_shmid64, &bsd_shmid);
buf = (void *)&bsd_shmid;
}
return (kern_shmctl(td, args->shmid, IPC_RMID, buf, NULL));

36
sys/amd64/linux/linux_ipc64.h → sys/compat/linux/linux_ipc64.h
View File

@ -28,19 +28,19 @@
* $FreeBSD$
*/
#ifndef _AMD64_LINUX_LINUX_IPC64_H_
#define _AMD64_LINUX_LINUX_IPC64_H_
#ifndef _LINUX_IPC64_H_
#define _LINUX_IPC64_H_
/*
* The ipc64_perm structure for i386 architecture.
* The generic ipc64_perm structure.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 32-bit mode_t and seq
* - 32-bit mode_t on architectures that only had 16 bit
* - 32-bit seq
* - 2 miscellaneous 32-bit values
*/
struct l_ipc64_perm
{
l_key_t key;
@ -49,7 +49,8 @@ struct l_ipc64_perm
l_uid_t cuid;
l_gid_t cgid;
l_mode_t mode;
l_ushort __pad1;
/* pad if mode_t is ushort: */
unsigned char __pad1[sizeof(l_int) - sizeof(l_mode_t)];
l_ushort seq;
l_ushort __pad2;
l_ulong __unused1;
@ -57,7 +58,7 @@ struct l_ipc64_perm
};
/*
* The msqid64_ds structure for i386 architecture.
* The generic msqid64_ds structure fro x86 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
@ -69,11 +70,17 @@ struct l_ipc64_perm
struct l_msqid64_ds {
struct l_ipc64_perm msg_perm;
l_time_t msg_stime; /* last msgsnd time */
#if !defined(__LP64__) || defined(COMPAT_LINUX32)
l_ulong __unused1;
#endif
l_time_t msg_rtime; /* last msgrcv time */
#if !defined(__LP64__) || defined(COMPAT_LINUX32)
l_ulong __unused2;
#endif
l_time_t msg_ctime; /* last change time */
#if !defined(__LP64__) || defined(COMPAT_LINUX32)
l_ulong __unused3;
#endif
l_ulong msg_cbytes; /* current number of bytes on queue */
l_ulong msg_qnum; /* number of messages in queue */
l_ulong msg_qbytes; /* max number of bytes on queue */
@ -84,7 +91,7 @@ struct l_msqid64_ds {
};
/*
* The semid64_ds structure for i386 architecture.
* The generic semid64_ds structure for x86 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
@ -105,7 +112,7 @@ struct l_semid64_ds {
};
/*
* The shmid64_ds structure for i386 architecture.
* The generic shmid64_ds structure for x86 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
@ -118,8 +125,17 @@ struct l_shmid64_ds {
struct l_ipc64_perm shm_perm; /* operation perms */
l_size_t shm_segsz; /* size of segment (bytes) */
l_time_t shm_atime; /* last attach time */
#if !defined(__LP64__) || defined(COMPAT_LINUX32)
l_ulong __unused1;
#endif
l_time_t shm_dtime; /* last detach time */
#if !defined(__LP64__) || defined(COMPAT_LINUX32)
l_ulong __unused2;
#endif
l_time_t shm_ctime; /* last change time */
#if !defined(__LP64__) || defined(COMPAT_LINUX32)
l_ulong __unused3;
#endif
l_pid_t shm_cpid; /* pid of creator */
l_pid_t shm_lpid; /* pid of last operator */
l_ulong shm_nattch; /* no. of current attaches */
@ -139,4 +155,4 @@ struct l_shminfo64 {
l_ulong __unused4;
};
#endif /* !_AMD64_LINUX_LINUX_IPC64_H_ */
#endif /* !LINUX_IPC64_H_ */

10
sys/i386/linux/linux.h
View File

@ -453,16 +453,6 @@ union l_semun {
void *__pad;
};
struct l_ipc_perm {
l_key_t key;
l_uid16_t uid;
l_gid16_t gid;
l_uid16_t cuid;
l_gid16_t cgid;
l_ushort mode;
l_ushort seq;
};
/*
* Socket defines
*/

145
sys/i386/linux/linux_ipc64.h
View File

@ -1,145 +0,0 @@
/*-
* Copyright (c) 2002 Maxim Sobolev <sobomax@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _I386_LINUX_LINUX_IPC64_H_
#define _I386_LINUX_LINUX_IPC64_H_
/*
* The ipc64_perm structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 32-bit mode_t and seq
* - 2 miscellaneous 32-bit values
*/
struct l_ipc64_perm
{
l_key_t key;
l_uid_t uid;
l_gid_t gid;
l_uid_t cuid;
l_gid_t cgid;
l_mode_t mode;
l_ushort __pad1;
l_ushort seq;
l_ushort __pad2;
l_ulong __unused1;
l_ulong __unused2;
};
/*
* The msqid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct l_msqid64_ds {
struct l_ipc64_perm msg_perm;
l_time_t msg_stime; /* last msgsnd time */
l_ulong __unused1;
l_time_t msg_rtime; /* last msgrcv time */
l_ulong __unused2;
l_time_t msg_ctime; /* last change time */
l_ulong __unused3;
l_ulong msg_cbytes; /* current number of bytes on queue */
l_ulong msg_qnum; /* number of messages in queue */
l_ulong msg_qbytes; /* max number of bytes on queue */
l_pid_t msg_lspid; /* pid of last msgsnd */
l_pid_t msg_lrpid; /* last receive pid */
l_ulong __unused4;
l_ulong __unused5;
};
/*
* The semid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct l_semid64_ds {
struct l_ipc64_perm sem_perm; /* permissions */
l_time_t sem_otime; /* last semop time */
l_ulong __unused1;
l_time_t sem_ctime; /* last change time */
l_ulong __unused2;
l_ulong sem_nsems; /* no. of semaphores in array */
l_ulong __unused3;
l_ulong __unused4;
};
/*
* The shmid64_ds structure for i386 architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct l_shmid64_ds {
struct l_ipc64_perm shm_perm; /* operation perms */
l_size_t shm_segsz; /* size of segment (bytes) */
l_time_t shm_atime; /* last attach time */
l_ulong __unused1;
l_time_t shm_dtime; /* last detach time */
l_ulong __unused2;
l_time_t shm_ctime; /* last change time */
l_ulong __unused3;
l_pid_t shm_cpid; /* pid of creator */
l_pid_t shm_lpid; /* pid of last operator */
l_ulong shm_nattch; /* no. of current attaches */
l_ulong __unused4;
l_ulong __unused5;
};
struct l_shminfo64 {
l_ulong shmmax;
l_ulong shmmin;
l_ulong shmmni;
l_ulong shmseg;
l_ulong shmall;
l_ulong __unused1;
l_ulong __unused2;
l_ulong __unused3;
l_ulong __unused4;
};
#endif /* !_I386_LINUX_LINUX_IPC64_H_ */