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[src/pgoyette-compat]: src/sys Split the sysv_ipc module into two pieces: on...
details: https://anonhg.NetBSD.org/src/rev/8d758f3b0f25
branches: pgoyette-compat
changeset: 320979:8d758f3b0f25
user: pgoyette <pgoyette%NetBSD.org@localhost>
date: Fri Mar 09 01:27:50 2018 +0000
description:
Split the sysv_ipc module into two pieces: one for contemporary
SYSV* functionality, and one for compatability with previous NetBSD
versions. No need to pull in all of compat just to have a sysv_ipc
module.
diffstat:
sys/arch/amd64/conf/NOCOMPAT | 10 +-
sys/compat/common/files.common | 6 +-
sys/compat/common/sysv_ipc_mod.c | 134 +++++++++++++++++++++++++++++++++++
sys/compat/common/sysv_ipc_mod.h | 39 ++++++++++
sys/kern/sysv_ipc.c | 52 ++++---------
sys/modules/Makefile | 3 +-
sys/modules/compat_sysv_ipc/Makefile | 23 ++++++
sys/modules/sysv_ipc/Makefile | 11 +--
8 files changed, 225 insertions(+), 53 deletions(-)
diffs (truncated from 416 to 300 lines):
diff -r ea771620259d -r 8d758f3b0f25 sys/arch/amd64/conf/NOCOMPAT
--- a/sys/arch/amd64/conf/NOCOMPAT Thu Mar 08 09:56:05 2018 +0000
+++ b/sys/arch/amd64/conf/NOCOMPAT Fri Mar 09 01:27:50 2018 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: NOCOMPAT,v 1.1.2.1 2018/03/06 04:45:04 pgoyette Exp $
+# $NetBSD: NOCOMPAT,v 1.1.2.2 2018/03/09 01:27:50 pgoyette Exp $
#
# GENERIC machine description file
#
@@ -22,7 +22,7 @@
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
-#ident "GENERIC-$Revision: 1.1.2.1 $"
+#ident "GENERIC-$Revision: 1.1.2.2 $"
maxusers 64 # estimated number of users
@@ -63,9 +63,9 @@
options CPU_UCODE # cpu ucode loading support
# Note: SysV IPC parameters could be changed dynamically, see sysctl(8).
-options SYSVMSG # System V-like message queues
-options SYSVSEM # System V-like semaphores
-options SYSVSHM # System V-like memory sharing
+#options SYSVMSG # System V-like message queues
+#options SYSVSEM # System V-like semaphores
+#options SYSVSHM # System V-like memory sharing
options MODULAR # new style module(7) framework
options MODULAR_DEFAULT_AUTOLOAD
diff -r ea771620259d -r 8d758f3b0f25 sys/compat/common/files.common
--- a/sys/compat/common/files.common Thu Mar 08 09:56:05 2018 +0000
+++ b/sys/compat/common/files.common Fri Mar 09 01:27:50 2018 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.common,v 1.1.2.3 2018/03/06 10:37:41 pgoyette Exp $
+# $NetBSD: files.common,v 1.1.2.4 2018/03/09 01:27:50 pgoyette Exp $
#
# Generic files, used by all compat options.
@@ -73,6 +73,10 @@
# Sources for sysv ipc compatibility across the versions.
#
+# Module interface for sysv ipc compatability options
+
+file compat/common/sysv_ipc_mod.c compat_netbsd
+
# Compatibility code for NetBSD 1.0
file compat/common/kern_ipc_10.c compat_netbsd
diff -r ea771620259d -r 8d758f3b0f25 sys/compat/common/sysv_ipc_mod.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/compat/common/sysv_ipc_mod.c Fri Mar 09 01:27:50 2018 +0000
@@ -0,0 +1,134 @@
+/* $NetBSD: sysv_ipc_mod.c,v 1.1.2.1 2018/03/09 01:27:50 pgoyette Exp $ */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software developed for The NetBSD Foundation
+ * by Paul Goyette
+ *
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: sysv_ipc_mod.c,v 1.1.2.1 2018/03/09 01:27:50 pgoyette Exp $");
+
+#ifdef _KERNEL_OPT
+#include "opt_compat_netbsd.h"
+#include "opt_compat_50.h"
+#include "opt_compat_14.h"
+#include "opt_compat_10.h"
+#include "opt_sysv.h"
+#endif
+
+#include <sys/systm.h>
+#include <sys/module.h>
+#include <sys/syscall.h>
+#include <sys/syscallargs.h>
+#include <sys/syscallvar.h>
+#include <sys/sysctl.h>
+
+#include <compat/common/sysv_ipc_mod.h>
+
+#ifdef COMPAT_50
+int sysctl_kern_sysvipc50(SYSCTLFN_PROTO);
+#endif
+
+MODULE(MODULE_CLASS_EXEC, compat_sysv_ipc, NULL);
+
+/* Build the syscall package based on options specified */
+
+static const struct syscall_package compat_syscalls[] = {
+#if defined(COMPAT_10) && !defined(_LP64)
+#ifdef SYSVSHM
+ { SYS_compat_10_oshmsys, 0, (sy_call_t *)compat_10_sys_shmsys },
+#endif
+#ifdef SYSVSEM
+ { SYS_compat_10_osemsys, 0, (sy_call_t *)compat_10_sys_semsys },
+#endif
+#ifdef SYSVMSG
+ { SYS_compat_10_omsgsys, 0, (sy_call_t *)compat_10_sys_msgsys },
+#endif
+#endif /* defined(COMPAT_10) && !defined(_LP64) */
+
+#if defined(COMPAT_14)
+#ifdef SYSVSHM
+ { SYS_compat_14_shmctl, 0, (sy_call_t *)compat_14_sys_shmctl },
+#endif
+#ifdef SYSVSEM
+ { SYS_compat_14___semctl, 0, (sy_call_t *)compat_14_sys___semctl },
+#endif
+#ifdef SYSVMSG
+ { SYS_compat_14_msgctl, 0, (sy_call_t *)compat_14_sys_msgctl },
+#endif
+#endif /* defined(COMPAT_14) */
+
+#if defined(COMPAT_50)
+#ifdef SYSVSHM
+ { SYS_compat_50___shmctl13, 0, (sy_call_t *)compat_50_sys___shmctl13 },
+#endif
+#ifdef SYSVSEM
+ { SYS_compat_50_____semctl13, 0, (sy_call_t *)compat_50_sys_____semctl13 },
+#endif
+#ifdef SYSVMSG
+ { SYS_compat_50___msgctl13, 0, (sy_call_t *)compat_50_sys___msgctl13 },
+#endif
+#endif /* defined(COMPAT_50) */
+
+ { 0, 0, NULL }
+};
+
+static int
+compat_sysv_ipc_modcmd(modcmd_t cmd, void *arg)
+{
+ static (*orig_sysvipc50_sysctl)(SYSCTLFN_PROTO);
+
+ int error = 0;
+
+ switch (cmd) {
+ case MODULE_CMD_INIT:
+ error = syscall_establish(NULL, compat_syscalls);
+ if (error != 0) {
+ break;
+ }
+#if defined(COMPAT_50)
+ orig_sysvipc50_sysctl = vec_sysvipc50_sysctl;
+ vec_sysvipc50_sysctl = sysctl_kern_sysvipc50;
+#endif
+ break;
+
+ case MODULE_CMD_FINI:
+#if defined(COMPAT_50)
+ vec_sysvipc50_sysctl = orig_sysvipc50_sysctl;
+#endif
+ error = syscall_disestablish(NULL, compat_syscalls);
+ if (error != 0) {
+ break;
+ }
+ break;
+
+ default:
+ error = ENOTTY;
+ break;
+ }
+ return error;
+}
diff -r ea771620259d -r 8d758f3b0f25 sys/compat/common/sysv_ipc_mod.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/compat/common/sysv_ipc_mod.h Fri Mar 09 01:27:50 2018 +0000
@@ -0,0 +1,39 @@
+/* $NetBSD: sysv_ipc_mod.h,v 1.1.2.1 2018/03/09 01:27:50 pgoyette Exp $ */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software developed for The NetBSD Foundation
+ * by Paul Goyette
+ *
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+
+#ifndef _COMPAT_COMMON_SYSV_IPC_MOD_H_
+#define _COMPAT_COMMON_SYSV_IPC_MOD_H_
+
+#include <sys/sysctl.h>
+
+int (*vec_sysvipc50_sysctl)(SYSCTLFN_PROTO);
+
+#endif /* _COMPAT_COMMON_SYSV_IPC_MOD_H_ */
diff -r ea771620259d -r 8d758f3b0f25 sys/kern/sysv_ipc.c
--- a/sys/kern/sysv_ipc.c Thu Mar 08 09:56:05 2018 +0000
+++ b/sys/kern/sysv_ipc.c Fri Mar 09 01:27:50 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sysv_ipc.c,v 1.32 2015/12/05 00:51:42 pgoyette Exp $ */
+/* $NetBSD: sysv_ipc.c,v 1.32.16.1 2018/03/09 01:27:50 pgoyette Exp $ */
/*-
* Copyright (c) 1998, 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sysv_ipc.c,v 1.32 2015/12/05 00:51:42 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sysv_ipc.c,v 1.32.16.1 2018/03/09 01:27:50 pgoyette Exp $");
#ifdef _KERNEL_OPT
#include "opt_sysv.h"
@@ -62,6 +62,8 @@
#include <sys/sysctl.h>
#include <sys/kauth.h>
+#include <compat/common/sysv_ipc_mod.h> /* for sysctl routine vector */
+
/*
* Values in support of System V compatible shared memory. XXX
* (originally located in sys/conf/param.c)
@@ -124,10 +126,6 @@
};
#endif
-#if defined(COMPAT_50)
-int sysctl_kern_sysvipc50(SYSCTLFN_PROTO);
-#endif
-
MODULE(MODULE_CLASS_EXEC, sysv_ipc, NULL);
SYSCTL_SETUP_PROTO(sysctl_ipc_setup);
@@ -140,15 +138,6 @@
{ SYS_shmat, 0, (sy_call_t *)sys_shmat },
{ SYS_shmdt, 0, (sy_call_t *)sys_shmdt },
{ SYS_shmget, 0, (sy_call_t *)sys_shmget },
-#if defined(COMPAT_10) && !defined(_LP64)
- { SYS_compat_10_oshmsys, 0, (sy_call_t *)compat_10_sys_shmsys },
-#endif
-#if defined(COMPAT_14)
- { SYS_compat_14_shmctl, 0, (sy_call_t *)compat_14_sys_shmctl },
-#endif
-#if defined(COMPAT_50)
- { SYS_compat_50___shmctl13, 0, (sy_call_t *)compat_50_sys___shmctl13 },
-#endif
#endif /* SYSVSHM */
#if defined(SYSVSEM)
@@ -156,15 +145,6 @@
{ SYS_semget, 0, (sy_call_t *)sys_semget },
{ SYS_semop, 0, (sy_call_t *)sys_semop },
{ SYS_semconfig, 0, (sy_call_t *)sys_semconfig },
-#if defined(COMPAT_10) && !defined(_LP64)
- { SYS_compat_10_osemsys, 0, (sy_call_t *)compat_10_sys_semsys },
-#endif
-#if defined(COMPAT_14)
- { SYS_compat_14___semctl, 0, (sy_call_t *)compat_14_sys___semctl },
-#endif
-#if defined(COMPAT_50)
- { SYS_compat_50_____semctl13, 0, (sy_call_t *)compat_50_sys_____semctl13 },
-#endif
#endif /* SYSVSEM */
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