implementations:
- The "kernel-based switch": This divides the switch into a
- "datapath" Linux kernel module (openflow_mod.o for Linux 2.4
- or openflow_mod.ko for Linux 2.6) and a userspace program
- (secchan). The kernel-based switch is faster than either of
- the other two implementations but requires building and
- installing a kernel module, which can sometimes be
- challenging.
+ "datapath" Linux kernel module (openflow_mod.ko) and a
+ userspace program (secchan). The kernel-based switch is
+ faster than either of the other two implementations but
+ requires building and installing a kernel module, which can
+ sometimes be challenging.
- The "userspace datapath-based switch": This divides the
switch into a userspace "datapath" (built as
"lsmod | grep bridge"), you must remove it ("rmmod bridge")
before starting the datapath.
- In 2.4.x kernels, VLAN support (CONFIG_VLAN_8021Q) must be
- compiled either directly or as a module. Failure to do this
- will cause an error on module insertion due to the
- "dev_change_flags" symbol being undefined.
-
- - The correct version of GCC for the kernel that you are building
- the module against:
-
- * To build a kernel module for a Linux 2.6 kernel, you need
- the same version of GCC that was used to build that kernel
- (usually version 4.0 or later).
-
- * To build a kernel module for a Linux 2.4 kernel, you need an
- earlier version of GCC, typically GCC 2.95, 3.3, or 3.4.
+ - To build a kernel module, you need the same version of GCC that
+ was used to build that kernel (usually version 4.0 or later).
- A kernel build directory corresponding to the Linux kernel image
the module is to run on. Under Debian and Ubuntu, for example,
- datapath/linux-2.6/hwtable_<table>_mod.ko for each <table>
specified on --enable-hw-tables (if any).
- If you passed --with-l24 to configure, "make" will also build the
- following kernel modules:
-
- - datapath/linux-2.4/openflow_mod.o
-
- - datapath/linux-2.6/hwtable_<table>_mod.o for each <table>
- specified on --enable-hw-tables (if any).
-
3. Run "make install" to install the executables and manpages into the
running system, by default under /usr/local.
4. If you built kernel modules, you may load them with "insmod", e.g.:
- (Linux 2.6)
% insmod datapath/linux-2.6/openflow_mod.ko
- (Linux 2.4)
- % insmod datapath/linux-2.4/compat24_mod.o
- % insmod datapath/linux-2.4/openflow_mod.o
-
After you load the openflow module, you may load one hardware switch
table module (if any were built) to enable support for that hardware
switching table.
To build the kernel module, follow the build process described above,
but pass the location of the kernel build directory as an additional
argument to the configure script, as described under step 1 in that
-section. Specify the location on --with-l26 for Linux 2.6, --with-l24
-for Linux 2.4. For example, to build for a running instance of Linux
-2.6:
+section. Specify the location on --with-l26. For example, to build
+for a running instance of Linux 2.6:
% ./configure --with-l26=/lib/modules/`uname -r`/build
-To build for a running instance of Linux 2.4:
-
- % ./configure --with-l24=/lib/modules/`uname -r`/build
-
If you wish to build OpenFlow for an architecture other than the
architecture used for compilation, you may specify the kernel
architecture string using the KARCH variable when invoking the
-configure script. For example, to build OpenFlow for MIPS with Linux
-2.4:
+configure script. For example, to build OpenFlow for MIPS with Linux
+2.6:
- % ./configure --with-l24=/path/to/linux-2.4 KARCH=mips
+ % ./configure --with-l24=/path/to/linux-2.6 KARCH=mips
If you have hardware that supports accelerated OpenFlow switching, and
you have obtained a hardware table module for your hardware and
datapath).
- udatapath.
-
-- Linux 2.4.x support.
The Linux kernel module is, of course, Linux-specific, and the dpctl
utility will not be useful without the kernel module. The testing of
-the kernel module has focused on Linux 2.6.26. Linux 2.6 releases
-from 2.6.15 onward and Linux 2.4 releases from 2.4.20 onward should
+the kernel module has focused on version 2.6.18 from Xen and version
+2.6.26 from kernel.org. Linux 2.6 releases from 2.6.15 onward should
also work.
The userspace datapath implementation should be easy to port to
AC_ARG_VAR(KARCH, [Kernel Architecture String])
AC_SUBST(KARCH)
OFP_CHECK_LINUX(l26, 2.6, KSRC26, L26_ENABLED)
-OFP_CHECK_LINUX(l24, 2.4, KSRC24, L24_ENABLED)
OFP_CHECK_DPKG_BUILDPACKAGE
datapath/Makefile
datapath/linux-2.6/Kbuild
datapath/linux-2.6/Makefile
-datapath/linux-2.6/Makefile.main
-datapath/linux-2.4/Kbuild
-datapath/linux-2.4/Makefile
-datapath/linux-2.4/Makefile.main])
+datapath/linux-2.6/Makefile.main])
AC_OUTPUT
if L26_ENABLED
SUBDIRS += linux-2.6
endif
-if L24_ENABLED
-SUBDIRS += linux-2.4
-endif
EXTRA_DIST = $(dist_headers) $(dist_sources)
EXTRA_DIST += hwtable_dummy/Modules.mk hwtable_dummy/hwtable_dummy.c
AUTOMAKE_OPTIONS = -Wno-portability
include Modules.mk
-include linux-2.4/Modules.mk
include linux-2.6/Modules.mk
return 1;
}
#else
-/* NB: This has only been tested on 2.4.35 */
-static void dp_frame_hook(struct sk_buff *skb)
-{
- struct net_bridge_port *p = skb->dev->br_port;
- if (p) {
- rcu_read_lock();
- do_port_input(p, skb);
- rcu_read_unlock();
- } else
- kfree_skb(skb);
-}
+#error
#endif
#ifdef CONFIG_XEN
+++ /dev/null
-/*.o.flags
-/Kbuild
-/Makefile
-/Makefile.main
-/actions.c
-/attr.c
-/brcompat.c
-/brc_sysfs_dp.c
-/brc_sysfs_if.c
-/compat24.c
-/datapath.c
-/dp_dev.c
-/dp_notify.c
-/flow.c
-/genetlink.c
-/kernel.c
-/kthread.c
-/netlink.c
-/random32.c
-/rcupdate.c
-/sched.c
-/snat.c
-/string.c
-/table.c
-/tmp
-/veth.c
+++ /dev/null
-# -*- makefile -*-
-builddir = @abs_builddir@
-srcdir = @abs_srcdir@
-top_srcdir = @abs_top_srcdir@
-KSRC = @KSRC24@
-VERSION = @VERSION@
-BUILDNR = @BUILDNR@
-
-# File Lists
-include $(srcdir)/../Modules.mk
-include $(srcdir)/Modules.mk
-include @HW_TABLES@
-
-# This is somewhat hacky. We want to include our compatibility headers before
-# any header files in the kernel by the same name. Unfortunately, the only
-# mechanism the kernel provides to add cflags is the EXTRA_CFLAGS variable,
-# which gets inserted into the build command after the internal kernel CFLAGS.
-# Since our stuff needs to come first, we override the variable.
-OF_CFLAGS = -I$(srcdir)/compat-2.4/include \
- -I$(srcdir)/compat-2.4/include-$(ARCH) \
- -I$(srcdir)/compat-2.4 -I$(srcdir)/.. \
- -I$(srcdir)/../../include \
- -I$(builddir)/.. $(CFLAGS) \
- -DVERSION=\"$(VERSION)\"
-ifeq '$(BUILDNR)' '0'
-OF_CFLAGS += -DBUILDNR=\"\"
-else
-OF_CFLAGS += -DBUILDNR=\"+build$(BUILDNR)\"
-endif
-override CFLAGS := $(OF_CFLAGS)
-
-# Multipart objects
-list-multi := $(patsubst %,%_mod.o,$(build_modules))
-
-# Module objects that we can build
-obj-m += $(list-multi)
-
-# Object Parts
-define parts_template
-$(1)_mod-objs = $$(patsubst %.c,%.o,$(notdir $($(1)_sources)))
-endef
-$(foreach module,$(build_modules),$(eval $(call parts_template,$(module))))
-
-# Objects that export symbols
-export-objs = $(build_objects)
-
-# Include the kernel's global Rules.make
-include $(TOPDIR)/Rules.make
-
-# Link rules for multi-part objects
-define link_template
-$(1)_mod.o: $($(1)_mod-objs)
- $(LD) -r -o $$@ $($(1)_mod-objs)
-endef
-$(foreach module,$(build_modules),$(eval $(call link_template,$(module))))
-
-# Build system rewrite May 2008: Bobby Holley <bh10@stanford.edu>
-#
-# A few bits and pieces of this file might be derived from Intel's e1000
-# distribution, with the following license:
-
-################################################################################
-#
-# Intel PRO/1000 Linux driver
-# Copyright(c) 1999 - 2007 Intel Corporation.
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# The full GNU General Public License is included in this distribution in
-# the file called "COPYING".
-#
-# Contact Information:
-# Linux NICS <linux.nics@intel.com>
-# e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
-# Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-#
-################################################################################
+++ /dev/null
-ifneq ($(MAKING_MODULES),1)
-# We're being called directly by running make in this directory.
-include Makefile.main
-else
-# We're being included by the Linux kernel build system
-include Kbuild
-endif
-
-
+++ /dev/null
-# -*- makefile -*-
-builddir = @abs_builddir@
-srcdir = @abs_srcdir@
-top_srcdir = @abs_top_srcdir@
-KSRC = @KSRC24@
-VERSION = @VERSION@
-AC_CC = @CC@
-KARCH = @KARCH@
-
-# File Lists
-include $(srcdir)/../Modules.mk
-include $(srcdir)/Modules.mk
-include @HW_TABLES@
-
-default: $(build_links)
-$(foreach m,$(build_modules), \
- $(foreach s,$($(m)_sources), \
- $(eval $(notdir $(s)): ; ln -s $(srcdir)/../$(s) .)))
-
-distclean: clean
-distdir: clean
-install:
-all: default
-check: all
-clean:
- rm -f *.o *_mod.o .*.o.flags
- for d in $(build_links); do if test -h $$d; then rm $$d; fi; done
-
-ifneq (,$(KSRC))
-
-ifneq ($(shell grep -c 'PATCHLEVEL = 4' $(KSRC)/Makefile),1)
- $(error Linux kernel source in $(KSRC) not 2.4)
-endif
-
-ifeq (/lib/modules/$(shell uname -r)/source, $(KSRC))
- KOBJ := /lib/modules/$(shell uname -r)/build
-else
- KOBJ := $(KSRC)
-endif
-
-VERSION_FILE := $(KOBJ)/include/linux/version.h
-ifeq (,$(wildcard $(VERSION_FILE)))
- $(error Linux kernel source not configured - missing version.h)
-endif
-
-CONFIG_FILE := $(KSRC)/include/linux/autoconf.h
-ifeq (,$(wildcard $(CONFIG_FILE)))
- $(error Linux kernel source not configured - missing autoconf.h)
-endif
-
-# Determine the Cross-compile string for the kernel, which should just be the
-# c compiler with 'gcc' removed from the end. We're obviously assuming gcc
-# here.
-CROSS_COMPILE = $(shell echo $(AC_CC) | perl -p -e 's/(.*)gcc.*/$$1/')
-
-# Determine if we want to override the ARCH for the kernel
-ifneq (,$(KARCH))
- ARCH_OVERRIDE := ARCH=$(KARCH)
-else
- ARCH_OVERRIDE :=
-endif
-
-.PHONY: all distclean distdir clean check
-
-# Invoke the kernel build system
-all:
- $(MAKE) -C $(KSRC) $(ARCH_OVERRIDE) CROSS_COMPILE=$(CROSS_COMPILE) SUBDIRS=$(PWD) modules
-
-endif # (,$(KSRC))
+++ /dev/null
-both_modules += compat24
-
-compat24_sources = \
- linux-2.4/compat-2.4/attr.c \
- linux-2.4/compat-2.4/compat24.c \
- linux-2.4/compat-2.4/genetlink.c \
- linux-2.4/compat-2.4/kernel.c \
- linux-2.4/compat-2.4/kthread.c \
- linux-2.4/compat-2.4/netlink.c \
- linux-2.4/compat-2.4/random32.c \
- linux-2.4/compat-2.4/rcupdate.c \
- linux-2.4/compat-2.4/sched.c \
- linux-2.4/compat-2.4/string.c
-
-compat24_headers = \
- linux-2.4/compat-2.4/compat24.h \
- linux-2.4/compat-2.4/include-arm/asm/atomic.h \
- linux-2.4/compat-2.4/include-i386/asm/atomic.h \
- linux-2.4/compat-2.4/include-mips/asm/atomic.h \
- linux-2.4/compat-2.4/include-mips/asm/barrier.h \
- linux-2.4/compat-2.4/include-mips/asm/break.h \
- linux-2.4/compat-2.4/include-mips/asm/page.h \
- linux-2.4/compat-2.4/include-mips/asm/system.h \
- linux-2.4/compat-2.4/include/asm/bug.h \
- linux-2.4/compat-2.4/include/asm/system.h \
- linux-2.4/compat-2.4/include/linux/compiler.h \
- linux-2.4/compat-2.4/include/linux/delay.h \
- linux-2.4/compat-2.4/include/linux/dmi.h \
- linux-2.4/compat-2.4/include/linux/etherdevice.h \
- linux-2.4/compat-2.4/include/linux/genetlink.h \
- linux-2.4/compat-2.4/include/linux/gfp.h \
- linux-2.4/compat-2.4/include/linux/icmp.h \
- linux-2.4/compat-2.4/include/linux/if_ether.h \
- linux-2.4/compat-2.4/include/linux/if_vlan.h \
- linux-2.4/compat-2.4/include/linux/ip.h \
- linux-2.4/compat-2.4/include/linux/ipv6.h \
- linux-2.4/compat-2.4/include/linux/jiffies.h \
- linux-2.4/compat-2.4/include/linux/kernel.h \
- linux-2.4/compat-2.4/include/linux/kthread.h \
- linux-2.4/compat-2.4/include/linux/list.h \
- linux-2.4/compat-2.4/include/linux/llc.h \
- linux-2.4/compat-2.4/include/linux/module.h \
- linux-2.4/compat-2.4/include/linux/mutex.h \
- linux-2.4/compat-2.4/include/linux/netdevice.h \
- linux-2.4/compat-2.4/include/linux/netlink.h \
- linux-2.4/compat-2.4/include/linux/random.h \
- linux-2.4/compat-2.4/include/linux/rculist.h \
- linux-2.4/compat-2.4/include/linux/rcupdate.h \
- linux-2.4/compat-2.4/include/linux/sched.h \
- linux-2.4/compat-2.4/include/linux/skbuff.h \
- linux-2.4/compat-2.4/include/linux/slab.h \
- linux-2.4/compat-2.4/include/linux/sockios.h \
- linux-2.4/compat-2.4/include/linux/spinlock.h \
- linux-2.4/compat-2.4/include/linux/string.h \
- linux-2.4/compat-2.4/include/linux/tcp.h \
- linux-2.4/compat-2.4/include/linux/time.h \
- linux-2.4/compat-2.4/include/linux/timer.h \
- linux-2.4/compat-2.4/include/linux/types.h \
- linux-2.4/compat-2.4/include/linux/udp.h \
- linux-2.4/compat-2.4/include/linux/workqueue.h \
- linux-2.4/compat-2.4/include/net/checksum.h \
- linux-2.4/compat-2.4/include/net/genetlink.h \
- linux-2.4/compat-2.4/include/net/llc_pdu.h \
- linux-2.4/compat-2.4/include/net/netlink.h
-
-EXTRA_DIST += linux-2.4/compat-2.4/TODO
+++ /dev/null
-Linux kernel 2.4 specific build:
-
- - Backports: compat-2.4/genetlink.c is a back-port of the
- Linux 2.6 Generic Netlink functionality. It must be loaded
- as module genetlink_mod.o before openflow_mod.o may be
- loaded.
+++ /dev/null
-* Properly port RCU to Linux 2.4. In particular we will need support
- for call_rcu to properly do flow-table updating.
+++ /dev/null
-/*
- * NETLINK Netlink attributes
- *
- * Authors: Thomas Graf <tgraf@suug.ch>
- * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/jiffies.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <net/netlink.h>
-
-static u16 nla_attr_minlen[NLA_TYPE_MAX+1] = {
- [NLA_U8] = sizeof(u8),
- [NLA_U16] = sizeof(u16),
- [NLA_U32] = sizeof(u32),
- [NLA_U64] = sizeof(u64),
- [NLA_NESTED] = NLA_HDRLEN,
-};
-
-static int validate_nla(struct nlattr *nla, int maxtype,
- const struct nla_policy *policy)
-{
- const struct nla_policy *pt;
- int minlen = 0, attrlen = nla_len(nla);
-
- if (nla->nla_type <= 0 || nla->nla_type > maxtype)
- return 0;
-
- pt = &policy[nla->nla_type];
-
- BUG_ON(pt->type > NLA_TYPE_MAX);
-
- switch (pt->type) {
- case NLA_FLAG:
- if (attrlen > 0)
- return -ERANGE;
- break;
-
- case NLA_NUL_STRING:
- if (pt->len)
- minlen = min_t(int, attrlen, pt->len + 1);
- else
- minlen = attrlen;
-
- if (!minlen || memchr(nla_data(nla), '\0', minlen) == NULL)
- return -EINVAL;
- /* fall through */
-
- case NLA_STRING:
- if (attrlen < 1)
- return -ERANGE;
-
- if (pt->len) {
- char *buf = nla_data(nla);
-
- if (buf[attrlen - 1] == '\0')
- attrlen--;
-
- if (attrlen > pt->len)
- return -ERANGE;
- }
- break;
-
- case NLA_BINARY:
- if (pt->len && attrlen > pt->len)
- return -ERANGE;
- break;
-
- default:
- if (pt->len)
- minlen = pt->len;
- else if (pt->type != NLA_UNSPEC)
- minlen = nla_attr_minlen[pt->type];
-
- if (attrlen < minlen)
- return -ERANGE;
- }
-
- return 0;
-}
-
-/**
- * nla_validate - Validate a stream of attributes
- * @head: head of attribute stream
- * @len: length of attribute stream
- * @maxtype: maximum attribute type to be expected
- * @policy: validation policy
- *
- * Validates all attributes in the specified attribute stream against the
- * specified policy. Attributes with a type exceeding maxtype will be
- * ignored. See documenation of struct nla_policy for more details.
- *
- * Returns 0 on success or a negative error code.
- */
-int nla_validate(struct nlattr *head, int len, int maxtype,
- const struct nla_policy *policy)
-{
- struct nlattr *nla;
- int rem, err;
-
- nla_for_each_attr(nla, head, len, rem) {
- err = validate_nla(nla, maxtype, policy);
- if (err < 0)
- goto errout;
- }
-
- err = 0;
-errout:
- return err;
-}
-
-/**
- * nla_parse - Parse a stream of attributes into a tb buffer
- * @tb: destination array with maxtype+1 elements
- * @maxtype: maximum attribute type to be expected
- * @head: head of attribute stream
- * @len: length of attribute stream
- *
- * Parses a stream of attributes and stores a pointer to each attribute in
- * the tb array accessable via the attribute type. Attributes with a type
- * exceeding maxtype will be silently ignored for backwards compatibility
- * reasons. policy may be set to NULL if no validation is required.
- *
- * Returns 0 on success or a negative error code.
- */
-int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
- const struct nla_policy *policy)
-{
- struct nlattr *nla;
- int rem, err;
-
- memset(tb, 0, sizeof(struct nlattr *) * (maxtype + 1));
-
- nla_for_each_attr(nla, head, len, rem) {
- u16 type = nla->nla_type;
-
- if (type > 0 && type <= maxtype) {
- if (policy) {
- err = validate_nla(nla, maxtype, policy);
- if (err < 0)
- goto errout;
- }
-
- tb[type] = nla;
- }
- }
-
- if (unlikely(rem > 0))
- printk(KERN_WARNING "netlink: %d bytes leftover after parsing "
- "attributes.\n", rem);
-
- err = 0;
-errout:
- return err;
-}
-
-/**
- * nla_find - Find a specific attribute in a stream of attributes
- * @head: head of attribute stream
- * @len: length of attribute stream
- * @attrtype: type of attribute to look for
- *
- * Returns the first attribute in the stream matching the specified type.
- */
-struct nlattr *nla_find(struct nlattr *head, int len, int attrtype)
-{
- struct nlattr *nla;
- int rem;
-
- nla_for_each_attr(nla, head, len, rem)
- if (nla->nla_type == attrtype)
- return nla;
-
- return NULL;
-}
-
-/**
- * nla_strlcpy - Copy string attribute payload into a sized buffer
- * @dst: where to copy the string to
- * @src: attribute to copy the string from
- * @dstsize: size of destination buffer
- *
- * Copies at most dstsize - 1 bytes into the destination buffer.
- * The result is always a valid NUL-terminated string. Unlike
- * strlcpy the destination buffer is always padded out.
- *
- * Returns the length of the source buffer.
- */
-size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize)
-{
- size_t srclen = nla_len(nla);
- char *src = nla_data(nla);
-
- if (srclen > 0 && src[srclen - 1] == '\0')
- srclen--;
-
- if (dstsize > 0) {
- size_t len = (srclen >= dstsize) ? dstsize - 1 : srclen;
-
- memset(dst, 0, dstsize);
- memcpy(dst, src, len);
- }
-
- return srclen;
-}
-
-/**
- * nla_memcpy - Copy a netlink attribute into another memory area
- * @dest: where to copy to memcpy
- * @src: netlink attribute to copy from
- * @count: size of the destination area
- *
- * Note: The number of bytes copied is limited by the length of
- * attribute's payload. memcpy
- *
- * Returns the number of bytes copied.
- */
-int nla_memcpy(void *dest, struct nlattr *src, int count)
-{
- int minlen = min_t(int, count, nla_len(src));
-
- memcpy(dest, nla_data(src), minlen);
-
- return minlen;
-}
-
-/**
- * nla_memcmp - Compare an attribute with sized memory area
- * @nla: netlink attribute
- * @data: memory area
- * @size: size of memory area
- */
-int nla_memcmp(const struct nlattr *nla, const void *data,
- size_t size)
-{
- int d = nla_len(nla) - size;
-
- if (d == 0)
- d = memcmp(nla_data(nla), data, size);
-
- return d;
-}
-
-/**
- * nla_strcmp - Compare a string attribute against a string
- * @nla: netlink string attribute
- * @str: another string
- */
-int nla_strcmp(const struct nlattr *nla, const char *str)
-{
- int len = strlen(str) + 1;
- int d = nla_len(nla) - len;
-
- if (d == 0)
- d = memcmp(nla_data(nla), str, len);
-
- return d;
-}
-
-/**
- * __nla_reserve - reserve room for attribute on the skb
- * @skb: socket buffer to reserve room on
- * @attrtype: attribute type
- * @attrlen: length of attribute payload
- *
- * Adds a netlink attribute header to a socket buffer and reserves
- * room for the payload but does not copy it.
- *
- * The caller is responsible to ensure that the skb provides enough
- * tailroom for the attribute header and payload.
- */
-struct nlattr *__nla_reserve(struct sk_buff *skb, int attrtype, int attrlen)
-{
- struct nlattr *nla;
-
- nla = (struct nlattr *) skb_put(skb, nla_total_size(attrlen));
- nla->nla_type = attrtype;
- nla->nla_len = nla_attr_size(attrlen);
-
- memset((unsigned char *) nla + nla->nla_len, 0, nla_padlen(attrlen));
-
- return nla;
-}
-
-/**
- * __nla_reserve_nohdr - reserve room for attribute without header
- * @skb: socket buffer to reserve room on
- * @attrlen: length of attribute payload
- *
- * Reserves room for attribute payload without a header.
- *
- * The caller is responsible to ensure that the skb provides enough
- * tailroom for the payload.
- */
-void *__nla_reserve_nohdr(struct sk_buff *skb, int attrlen)
-{
- void *start;
-
- start = skb_put(skb, NLA_ALIGN(attrlen));
- memset(start, 0, NLA_ALIGN(attrlen));
-
- return start;
-}
-
-/**
- * nla_reserve - reserve room for attribute on the skb
- * @skb: socket buffer to reserve room on
- * @attrtype: attribute type
- * @attrlen: length of attribute payload
- *
- * Adds a netlink attribute header to a socket buffer and reserves
- * room for the payload but does not copy it.
- *
- * Returns NULL if the tailroom of the skb is insufficient to store
- * the attribute header and payload.
- */
-struct nlattr *nla_reserve(struct sk_buff *skb, int attrtype, int attrlen)
-{
- if (unlikely(skb_tailroom(skb) < nla_total_size(attrlen)))
- return NULL;
-
- return __nla_reserve(skb, attrtype, attrlen);
-}
-
-/**
- * nla_reserve - reserve room for attribute without header
- * @skb: socket buffer to reserve room on
- * @len: length of attribute payload
- *
- * Reserves room for attribute payload without a header.
- *
- * Returns NULL if the tailroom of the skb is insufficient to store
- * the attribute payload.
- */
-void *nla_reserve_nohdr(struct sk_buff *skb, int attrlen)
-{
- if (unlikely(skb_tailroom(skb) < NLA_ALIGN(attrlen)))
- return NULL;
-
- return __nla_reserve_nohdr(skb, attrlen);
-}
-
-/**
- * __nla_put - Add a netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @attrlen: length of attribute payload
- * @data: head of attribute payload
- *
- * The caller is responsible to ensure that the skb provides enough
- * tailroom for the attribute header and payload.
- */
-void __nla_put(struct sk_buff *skb, int attrtype, int attrlen,
- const void *data)
-{
- struct nlattr *nla;
-
- nla = __nla_reserve(skb, attrtype, attrlen);
- memcpy(nla_data(nla), data, attrlen);
-}
-
-/**
- * __nla_put_nohdr - Add a netlink attribute without header
- * @skb: socket buffer to add attribute to
- * @attrlen: length of attribute payload
- * @data: head of attribute payload
- *
- * The caller is responsible to ensure that the skb provides enough
- * tailroom for the attribute payload.
- */
-void __nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data)
-{
- void *start;
-
- start = __nla_reserve_nohdr(skb, attrlen);
- memcpy(start, data, attrlen);
-}
-
-/**
- * nla_put - Add a netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @attrlen: length of attribute payload
- * @data: head of attribute payload
- *
- * Returns -1 if the tailroom of the skb is insufficient to store
- * the attribute header and payload.
- */
-int nla_put(struct sk_buff *skb, int attrtype, int attrlen, const void *data)
-{
- if (unlikely(skb_tailroom(skb) < nla_total_size(attrlen)))
- return -1;
-
- __nla_put(skb, attrtype, attrlen, data);
- return 0;
-}
-
-/**
- * nla_put_nohdr - Add a netlink attribute without header
- * @skb: socket buffer to add attribute to
- * @attrlen: length of attribute payload
- * @data: head of attribute payload
- *
- * Returns -1 if the tailroom of the skb is insufficient to store
- * the attribute payload.
- */
-int nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data)
-{
- if (unlikely(skb_tailroom(skb) < NLA_ALIGN(attrlen)))
- return -1;
-
- __nla_put_nohdr(skb, attrlen, data);
- return 0;
-}
-
-EXPORT_SYMBOL(nla_validate);
-EXPORT_SYMBOL(nla_parse);
-EXPORT_SYMBOL(nla_find);
-EXPORT_SYMBOL(nla_strlcpy);
-EXPORT_SYMBOL(__nla_reserve);
-EXPORT_SYMBOL(__nla_reserve_nohdr);
-EXPORT_SYMBOL(nla_reserve);
-EXPORT_SYMBOL(nla_reserve_nohdr);
-EXPORT_SYMBOL(__nla_put);
-EXPORT_SYMBOL(__nla_put_nohdr);
-EXPORT_SYMBOL(nla_put);
-EXPORT_SYMBOL(nla_put_nohdr);
-EXPORT_SYMBOL(nla_memcpy);
-EXPORT_SYMBOL(nla_memcmp);
-EXPORT_SYMBOL(nla_strcmp);
+++ /dev/null
-/*
- * Distributed under the terms of the GNU GPL version 2.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include "compat24.h"
-
-int __init compat24_init(void)
-{
- int err;
-
- rcu_init();
-
- err = random32_init();
- if (err)
- return err;
-
- init_kthread();
-
- return genl_init();
-
-}
-module_init(compat24_init);
-
-void __exit compat24_exit(void)
-{
- genl_exit();
-}
-module_exit(compat24_exit);
+++ /dev/null
-#ifndef __COMPAT24_H
-#define __COMPAT24_H 1
-
-int genl_init(void);
-void genl_exit(void);
-
-int random32_init(void);
-
-void init_kthread(void);
-
-void rcu_init(void);
-
-#endif /* compat24.h */
+++ /dev/null
-/*
- * NETLINK Generic Netlink Family
- *
- * Authors: Jamal Hadi Salim
- * Thomas Graf <tgraf@suug.ch>
- * Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/socket.h>
-#include <linux/string.h>
-#include <linux/skbuff.h>
-#include <asm/semaphore.h>
-#include <net/sock.h>
-#include <net/genetlink.h>
-
-#include "compat24.h"
-
-struct sock *genl_sock = NULL;
-
-static DECLARE_MUTEX(genl_mutex); /* serialization of message processing */
-
-static void genl_lock(void)
-{
- down(&genl_mutex);
-}
-
-static int genl_trylock(void)
-{
- return down_trylock(&genl_mutex);
-}
-
-static void genl_unlock(void)
-{
- up(&genl_mutex);
-
- if (genl_sock && genl_sock->receive_queue.qlen)
- genl_sock->data_ready(genl_sock, 0);
-}
-
-#define GENL_FAM_TAB_SIZE 16
-#define GENL_FAM_TAB_MASK (GENL_FAM_TAB_SIZE - 1)
-
-static struct list_head family_ht[GENL_FAM_TAB_SIZE];
-/*
- * Bitmap of multicast groups that are currently in use.
- *
- * To avoid an allocation at boot of just one unsigned long,
- * declare it global instead.
- * Bit 0 is marked as already used since group 0 is invalid.
- */
-static unsigned long mc_group_start = 0x1;
-static unsigned long *mc_groups = &mc_group_start;
-static unsigned long mc_groups_longs = 1;
-
-static int genl_ctrl_event(int event, void *data);
-
-static inline unsigned int genl_family_hash(unsigned int id)
-{
- return id & GENL_FAM_TAB_MASK;
-}
-
-static inline struct list_head *genl_family_chain(unsigned int id)
-{
- return &family_ht[genl_family_hash(id)];
-}
-
-static struct genl_family *genl_family_find_byid(unsigned int id)
-{
- struct genl_family *f;
-
- list_for_each_entry(f, genl_family_chain(id), family_list)
- if (f->id == id)
- return f;
-
- return NULL;
-}
-
-static struct genl_family *genl_family_find_byname(char *name)
-{
- struct genl_family *f;
- int i;
-
- for (i = 0; i < GENL_FAM_TAB_SIZE; i++)
- list_for_each_entry(f, genl_family_chain(i), family_list)
- if (strcmp(f->name, name) == 0)
- return f;
-
- return NULL;
-}
-
-static struct genl_ops *genl_get_cmd(u8 cmd, struct genl_family *family)
-{
- struct genl_ops *ops;
-
- list_for_each_entry(ops, &family->ops_list, ops_list)
- if (ops->cmd == cmd)
- return ops;
-
- return NULL;
-}
-
-/* Of course we are going to have problems once we hit
- * 2^16 alive types, but that can only happen by year 2K
-*/
-static inline u16 genl_generate_id(void)
-{
- static u16 id_gen_idx;
- int overflowed = 0;
-
- do {
- if (id_gen_idx == 0)
- id_gen_idx = GENL_MIN_ID;
-
- if (++id_gen_idx > GENL_MAX_ID) {
- if (!overflowed) {
- overflowed = 1;
- id_gen_idx = 0;
- continue;
- } else
- return 0;
- }
-
- } while (genl_family_find_byid(id_gen_idx));
-
- return id_gen_idx;
-}
-
-static struct genl_multicast_group notify_grp;
-
-/**
- * genl_register_mc_group - register a multicast group
- *
- * Registers the specified multicast group and notifies userspace
- * about the new group.
- *
- * Returns 0 on success or a negative error code.
- *
- * @family: The generic netlink family the group shall be registered for.
- * @grp: The group to register, must have a name.
- */
-int genl_register_mc_group(struct genl_family *family,
- struct genl_multicast_group *grp)
-{
- int id;
-
- BUG_ON(grp->name[0] == '\0');
-
- genl_lock();
-
- /* special-case our own group */
- if (grp == ¬ify_grp)
- id = GENL_ID_CTRL;
- else
- id = find_first_zero_bit(mc_groups,
- mc_groups_longs * BITS_PER_LONG);
-
-
- if (id >= mc_groups_longs * BITS_PER_LONG) {
- genl_unlock();
- return -ENOMEM;
- }
-
- grp->id = id;
- set_bit(id, mc_groups);
- list_add_tail(&grp->list, &family->mcast_groups);
- grp->family = family;
-
- genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, grp);
- genl_unlock();
- return 0;
-}
-EXPORT_SYMBOL(genl_register_mc_group);
-
-static void __genl_unregister_mc_group(struct genl_family *family,
- struct genl_multicast_group *grp)
-{
- BUG_ON(grp->family != family);
-
- /* We should clear this multicast group from any subscribers, but 2.4
- * doesn't have the proper interface to do it, and we'd need a patch to
- * implement it. */
- /*netlink_clear_multicast_users(genl_sock, grp->id);*/
- clear_bit(grp->id, mc_groups);
- list_del(&grp->list);
- genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp);
- grp->id = 0;
- grp->family = NULL;
-}
-
-/**
- * genl_unregister_mc_group - unregister a multicast group
- *
- * Unregisters the specified multicast group and notifies userspace
- * about it. All current listeners on the group are removed.
- *
- * Note: It is not necessary to unregister all multicast groups before
- * unregistering the family, unregistering the family will cause
- * all assigned multicast groups to be unregistered automatically.
- *
- * @family: Generic netlink family the group belongs to.
- * @grp: The group to unregister, must have been registered successfully
- * previously.
- */
-void genl_unregister_mc_group(struct genl_family *family,
- struct genl_multicast_group *grp)
-{
- genl_lock();
- __genl_unregister_mc_group(family, grp);
- genl_unlock();
-}
-EXPORT_SYMBOL(genl_unregister_mc_group);
-
-static void genl_unregister_mc_groups(struct genl_family *family)
-{
- struct genl_multicast_group *grp, *tmp;
-
- genl_lock();
- list_for_each_entry_safe(grp, tmp, &family->mcast_groups, list)
- __genl_unregister_mc_group(family, grp);
- genl_unlock();
-}
-
-/**
- * genl_register_ops - register generic netlink operations
- * @family: generic netlink family
- * @ops: operations to be registered
- *
- * Registers the specified operations and assigns them to the specified
- * family. Either a doit or dumpit callback must be specified or the
- * operation will fail. Only one operation structure per command
- * identifier may be registered.
- *
- * See include/net/genetlink.h for more documenation on the operations
- * structure.
- *
- * Returns 0 on success or a negative error code.
- */
-int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
-{
- int err = -EINVAL;
-
- if (ops->dumpit == NULL && ops->doit == NULL)
- goto errout;
-
- if (genl_get_cmd(ops->cmd, family)) {
- err = -EEXIST;
- goto errout;
- }
-
- if (ops->dumpit)
- ops->flags |= GENL_CMD_CAP_DUMP;
- if (ops->doit)
- ops->flags |= GENL_CMD_CAP_DO;
- if (ops->policy)
- ops->flags |= GENL_CMD_CAP_HASPOL;
-
- genl_lock();
- list_add_tail(&ops->ops_list, &family->ops_list);
- genl_unlock();
-
- genl_ctrl_event(CTRL_CMD_NEWOPS, ops);
- err = 0;
-errout:
- return err;
-}
-
-/**
- * genl_unregister_ops - unregister generic netlink operations
- * @family: generic netlink family
- * @ops: operations to be unregistered
- *
- * Unregisters the specified operations and unassigns them from the
- * specified family. The operation blocks until the current message
- * processing has finished and doesn't start again until the
- * unregister process has finished.
- *
- * Note: It is not necessary to unregister all operations before
- * unregistering the family, unregistering the family will cause
- * all assigned operations to be unregistered automatically.
- *
- * Returns 0 on success or a negative error code.
- */
-int genl_unregister_ops(struct genl_family *family, struct genl_ops *ops)
-{
- struct genl_ops *rc;
-
- genl_lock();
- list_for_each_entry(rc, &family->ops_list, ops_list) {
- if (rc == ops) {
- list_del(&ops->ops_list);
- genl_unlock();
- genl_ctrl_event(CTRL_CMD_DELOPS, ops);
- return 0;
- }
- }
- genl_unlock();
-
- return -ENOENT;
-}
-
-/**
- * genl_register_family - register a generic netlink family
- * @family: generic netlink family
- *
- * Registers the specified family after validating it first. Only one
- * family may be registered with the same family name or identifier.
- * The family id may equal GENL_ID_GENERATE causing an unique id to
- * be automatically generated and assigned.
- *
- * Return 0 on success or a negative error code.
- */
-int genl_register_family(struct genl_family *family)
-{
- int err = -EINVAL;
-
- if (family->id && family->id < GENL_MIN_ID)
- goto errout;
-
- if (family->id > GENL_MAX_ID)
- goto errout;
-
- INIT_LIST_HEAD(&family->ops_list);
- INIT_LIST_HEAD(&family->mcast_groups);
-
- genl_lock();
-
- if (genl_family_find_byname(family->name)) {
- err = -EEXIST;
- goto errout_locked;
- }
-
- if (genl_family_find_byid(family->id)) {
- err = -EEXIST;
- goto errout_locked;
- }
-
- if (family->id == GENL_ID_GENERATE) {
- u16 newid = genl_generate_id();
-
- if (!newid) {
- err = -ENOMEM;
- goto errout_locked;
- }
-
- family->id = newid;
- }
-
- if (family->maxattr) {
- family->attrbuf = kmalloc((family->maxattr+1) *
- sizeof(struct nlattr *), GFP_KERNEL);
- if (family->attrbuf == NULL) {
- err = -ENOMEM;
- goto errout_locked;
- }
- } else
- family->attrbuf = NULL;
-
- list_add_tail(&family->family_list, genl_family_chain(family->id));
- MOD_INC_USE_COUNT;
- genl_unlock();
-
- genl_ctrl_event(CTRL_CMD_NEWFAMILY, family);
-
- return 0;
-
-errout_locked:
- genl_unlock();
-errout:
- return err;
-}
-
-/**
- * genl_unregister_family - unregister generic netlink family
- * @family: generic netlink family
- *
- * Unregisters the specified family.
- *
- * Returns 0 on success or a negative error code.
- */
-int genl_unregister_family(struct genl_family *family)
-{
- struct genl_family *rc;
-
- genl_unregister_mc_groups(family);
-
- genl_lock();
-
- list_for_each_entry(rc, genl_family_chain(family->id), family_list) {
- if (family->id != rc->id || strcmp(rc->name, family->name))
- continue;
-
- list_del(&rc->family_list);
- INIT_LIST_HEAD(&family->ops_list);
- genl_unlock();
-
- kfree(family->attrbuf);
- genl_ctrl_event(CTRL_CMD_DELFAMILY, family);
- return 0;
- }
-
- MOD_DEC_USE_COUNT;
- genl_unlock();
-
- return -ENOENT;
-}
-
-static int null_done_func(struct netlink_callback *cb)
-{
- return 0;
-}
-
-static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
-{
- struct genl_ops *ops;
- struct genl_family *family;
- struct genl_info info;
- struct genlmsghdr *hdr = nlmsg_data(nlh);
- int hdrlen, err;
-
- family = genl_family_find_byid(nlh->nlmsg_type);
- if (family == NULL)
- return -ENOENT;
-
- hdrlen = GENL_HDRLEN + family->hdrsize;
- if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
- return -EINVAL;
-
- ops = genl_get_cmd(hdr->cmd, family);
- if (ops == NULL)
- return -EOPNOTSUPP;
-
- if ((ops->flags & GENL_ADMIN_PERM) && !capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if (nlh->nlmsg_flags & NLM_F_DUMP) {
- if (ops->dumpit == NULL)
- return -EOPNOTSUPP;
-
- return netlink_dump_start(genl_sock, skb, nlh,
- ops->dumpit,
- ops->done ?: null_done_func);
- }
-
- if (ops->doit == NULL)
- return -EOPNOTSUPP;
-
- if (family->attrbuf) {
- err = nlmsg_parse(nlh, hdrlen, family->attrbuf, family->maxattr,
- ops->policy);
- if (err < 0)
- return err;
- }
-
- info.snd_seq = nlh->nlmsg_seq;
- info.snd_pid = NETLINK_CB(skb).pid;
- info.nlhdr = nlh;
- info.genlhdr = nlmsg_data(nlh);
- info.userhdr = nlmsg_data(nlh) + GENL_HDRLEN;
- info.attrs = family->attrbuf;
-
- return ops->doit(skb, &info);
-}
-
-static void genl_rcv(struct sock *sk, int len)
-{
- unsigned int qlen = 0;
-
- do {
- if (genl_trylock())
- return;
- netlink_run_queue(sk, &qlen, genl_rcv_msg);
- genl_unlock();
- } while (qlen && genl_sock && genl_sock->receive_queue.qlen);
-}
-
-/**************************************************************************
- * Controller
- **************************************************************************/
-
-static struct genl_family genl_ctrl = {
- .id = GENL_ID_CTRL,
- .name = "nlctrl",
- .version = 0x2,
- .maxattr = CTRL_ATTR_MAX,
-};
-
-static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
- u32 flags, struct sk_buff *skb, u8 cmd)
-{
- void *hdr;
-
- hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd);
- if (hdr == NULL)
- return -1;
-
- NLA_PUT_STRING(skb, CTRL_ATTR_FAMILY_NAME, family->name);
- NLA_PUT_U16(skb, CTRL_ATTR_FAMILY_ID, family->id);
- NLA_PUT_U32(skb, CTRL_ATTR_VERSION, family->version);
- NLA_PUT_U32(skb, CTRL_ATTR_HDRSIZE, family->hdrsize);
- NLA_PUT_U32(skb, CTRL_ATTR_MAXATTR, family->maxattr);
-
- if (!list_empty(&family->ops_list)) {
- struct nlattr *nla_ops;
- struct genl_ops *ops;
- int idx = 1;
-
- nla_ops = nla_nest_start(skb, CTRL_ATTR_OPS);
- if (nla_ops == NULL)
- goto nla_put_failure;
-
- list_for_each_entry(ops, &family->ops_list, ops_list) {
- struct nlattr *nest;
-
- nest = nla_nest_start(skb, idx++);
- if (nest == NULL)
- goto nla_put_failure;
-
- NLA_PUT_U32(skb, CTRL_ATTR_OP_ID, ops->cmd);
- NLA_PUT_U32(skb, CTRL_ATTR_OP_FLAGS, ops->flags);
-
- nla_nest_end(skb, nest);
- }
-
- nla_nest_end(skb, nla_ops);
- }
-
- if (!list_empty(&family->mcast_groups)) {
- struct genl_multicast_group *grp;
- struct nlattr *nla_grps;
- int idx = 1;
-
- nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS);
- if (nla_grps == NULL)
- goto nla_put_failure;
-
- list_for_each_entry(grp, &family->mcast_groups, list) {
- struct nlattr *nest;
-
- nest = nla_nest_start(skb, idx++);
- if (nest == NULL)
- goto nla_put_failure;
-
- NLA_PUT_U32(skb, CTRL_ATTR_MCAST_GRP_ID, grp->id);
- NLA_PUT_STRING(skb, CTRL_ATTR_MCAST_GRP_NAME,
- grp->name);
-
- nla_nest_end(skb, nest);
- }
- nla_nest_end(skb, nla_grps);
- }
-
- return genlmsg_end(skb, hdr);
-
-nla_put_failure:
- return genlmsg_cancel(skb, hdr);
-}
-
-static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 pid,
- u32 seq, u32 flags, struct sk_buff *skb,
- u8 cmd)
-{
- void *hdr;
- struct nlattr *nla_grps;
- struct nlattr *nest;
-
- hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd);
- if (hdr == NULL)
- return -1;
-
- NLA_PUT_STRING(skb, CTRL_ATTR_FAMILY_NAME, grp->family->name);
- NLA_PUT_U16(skb, CTRL_ATTR_FAMILY_ID, grp->family->id);
-
- nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS);
- if (nla_grps == NULL)
- goto nla_put_failure;
-
- nest = nla_nest_start(skb, 1);
- if (nest == NULL)
- goto nla_put_failure;
-
- NLA_PUT_U32(skb, CTRL_ATTR_MCAST_GRP_ID, grp->id);
- NLA_PUT_STRING(skb, CTRL_ATTR_MCAST_GRP_NAME,
- grp->name);
-
- nla_nest_end(skb, nest);
- nla_nest_end(skb, nla_grps);
-
- return genlmsg_end(skb, hdr);
-
-nla_put_failure:
- return genlmsg_cancel(skb, hdr);
-}
-
-static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
-{
-
- int i, n = 0;
- struct genl_family *rt;
- int chains_to_skip = cb->args[0];
- int fams_to_skip = cb->args[1];
-
- if (chains_to_skip != 0)
- genl_lock();
-
- for (i = 0; i < GENL_FAM_TAB_SIZE; i++) {
- if (i < chains_to_skip)
- continue;
- n = 0;
- list_for_each_entry(rt, genl_family_chain(i), family_list) {
- if (++n < fams_to_skip)
- continue;
- if (ctrl_fill_info(rt, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI,
- skb, CTRL_CMD_NEWFAMILY) < 0)
- goto errout;
- }
-
- fams_to_skip = 0;
- }
-
-errout:
- if (chains_to_skip != 0)
- genl_unlock();
-
- cb->args[0] = i;
- cb->args[1] = n;
-
- return skb->len;
-}
-
-static struct sk_buff *ctrl_build_family_msg(struct genl_family *family,
- u32 pid, int seq, u8 cmd)
-{
- struct sk_buff *skb;
- int err;
-
- skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (skb == NULL)
- return ERR_PTR(-ENOBUFS);
-
- err = ctrl_fill_info(family, pid, seq, 0, skb, cmd);
- if (err < 0) {
- nlmsg_free(skb);
- return ERR_PTR(err);
- }
-
- return skb;
-}
-
-static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_multicast_group *grp,
- u32 pid, int seq, u8 cmd)
-{
- struct sk_buff *skb;
- int err;
-
- skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (skb == NULL)
- return ERR_PTR(-ENOBUFS);
-
- err = ctrl_fill_mcgrp_info(grp, pid, seq, 0, skb, cmd);
- if (err < 0) {
- nlmsg_free(skb);
- return ERR_PTR(err);
- }
-
- return skb;
-}
-
-static const struct nla_policy ctrl_policy[CTRL_ATTR_MAX+1] = {
- [CTRL_ATTR_FAMILY_ID] = { .type = NLA_U16 },
- [CTRL_ATTR_FAMILY_NAME] = { .type = NLA_NUL_STRING,
- .len = GENL_NAMSIZ - 1 },
-};
-
-static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
-{
- struct sk_buff *msg;
- struct genl_family *res = NULL;
- int err = -EINVAL;
-
- if (info->attrs[CTRL_ATTR_FAMILY_ID]) {
- u16 id = nla_get_u16(info->attrs[CTRL_ATTR_FAMILY_ID]);
- res = genl_family_find_byid(id);
- }
-
- if (info->attrs[CTRL_ATTR_FAMILY_NAME]) {
- char *name;
-
- name = nla_data(info->attrs[CTRL_ATTR_FAMILY_NAME]);
- res = genl_family_find_byname(name);
- }
-
- if (res == NULL) {
- err = -ENOENT;
- goto errout;
- }
-
- msg = ctrl_build_family_msg(res, info->snd_pid, info->snd_seq,
- CTRL_CMD_NEWFAMILY);
- if (IS_ERR(msg)) {
- err = PTR_ERR(msg);
- goto errout;
- }
-
- err = genlmsg_reply(msg, info);
-errout:
- return err;
-}
-
-static int genl_ctrl_event(int event, void *data)
-{
- struct sk_buff *msg;
-
- if (genl_sock == NULL)
- return 0;
-
- switch (event) {
- case CTRL_CMD_NEWFAMILY:
- case CTRL_CMD_DELFAMILY:
- msg = ctrl_build_family_msg(data, 0, 0, event);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- genlmsg_multicast(msg, 0, GENL_ID_CTRL, GFP_KERNEL);
- break;
- case CTRL_CMD_NEWMCAST_GRP:
- case CTRL_CMD_DELMCAST_GRP:
- msg = ctrl_build_mcgrp_msg(data, 0, 0, event);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- genlmsg_multicast(msg, 0, GENL_ID_CTRL, GFP_KERNEL);
- break;
- }
-
- return 0;
-}
-
-static struct genl_ops genl_ctrl_ops = {
- .cmd = CTRL_CMD_GETFAMILY,
- .doit = ctrl_getfamily,
- .dumpit = ctrl_dumpfamily,
- .policy = ctrl_policy,
-};
-
-static struct genl_multicast_group notify_grp = {
- .name = "notify",
-};
-
-int __init genl_init(void)
-{
- int i, err;
-
- for (i = 0; i < GENL_FAM_TAB_SIZE; i++)
- INIT_LIST_HEAD(&family_ht[i]);
-
- err = genl_register_family(&genl_ctrl);
- if (err < 0)
- goto errout;
-
- err = genl_register_ops(&genl_ctrl, &genl_ctrl_ops);
- if (err < 0)
- goto errout_register;
-
- netlink_set_nonroot(NETLINK_GENERIC, NL_NONROOT_RECV);
- genl_sock = netlink_kernel_create(NETLINK_GENERIC, genl_rcv);
- if (genl_sock == NULL)
- panic("GENL: Cannot initialize generic netlink\n");
-
- err = genl_register_mc_group(&genl_ctrl, ¬ify_grp);
- if (err < 0)
- goto errout_register;
-
- return 0;
-
-errout_register:
- genl_unregister_family(&genl_ctrl);
-errout:
- panic("GENL: Cannot register controller: %d\n", err);
-}
-
-void __exit genl_exit(void)
-{
- int err;
-
- err = genl_unregister_ops(&genl_ctrl, &genl_ctrl_ops);
- if (err) {
- printk("GENL: cannot unregister ops (%d)\n", err);
- return;
- }
-
- err = genl_unregister_family(&genl_ctrl);
- if (err) {
- printk("GENL: cannot unregister family (%d)\n", err);
- return;
- }
-
-}
-
-EXPORT_SYMBOL(genl_sock);
-EXPORT_SYMBOL(genl_register_ops);
-EXPORT_SYMBOL(genl_unregister_ops);
-EXPORT_SYMBOL(genl_register_family);
-EXPORT_SYMBOL(genl_unregister_family);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-#ifndef __ASM_ARM_ATOMIC_H_WRAPPER
-#define __ASM_ARM_ATOMIC_H_WRAPPER 1
-
-#include_next <asm/atomic.h>
-
-#ifdef __KERNEL__
-
-#if __LINUX_ARM_ARCH__ >= 6
-
-static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
-{
- unsigned long oldval, res;
-
- do {
- __asm__ __volatile__("@ atomic_cmpxchg\n"
- "ldrex %1, [%2]\n"
- "mov %0, #0\n"
- "teq %1, %3\n"
- "strexeq %0, %4, [%2]\n"
- : "=&r" (res), "=&r" (oldval)
- : "r" (&ptr->counter), "Ir" (old), "r" (new)
- : "cc");
- } while (res);
-
- return oldval;
-}
-
-#else /* ARM_ARCH_6 */
-
-#include <asm/system.h>
-
-#ifdef CONFIG_SMP
-#error SMP not supported on pre-ARMv6 CPUs
-#endif
-
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
-{
- int ret;
- unsigned long flags;
-
- local_irq_save(flags);
- ret = v->counter;
- if (likely(ret == old))
- v->counter = new;
- local_irq_restore(flags);
-
- return ret;
-}
-
-#endif /* __LINUX_ARM_ARCH__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* asm/atomic.h */
+++ /dev/null
-#ifndef __ASM_I386_ATOMIC_WRAPPER_H
-#define __ASM_I386_ATOMIC_WRAPPER_H 1
-
-#include_next <asm/atomic.h>
-
-#include <asm/system.h>
-
-#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new)))
-
-#endif /* atomic.h */
+++ /dev/null
-#ifndef __ASM_MIPS_ATOMIC_H_WRAPPER
-#define __ASM_MIPS_ATOMIC_H_WRAPPER 1
-
-#include_next <asm/atomic.h>
-#include <asm/system.h>
-
-#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
-
-#endif /* asm/atomic.h */
+++ /dev/null
-#ifndef __ASM_MIPS_BARRIER_H_WRAPPER
-#define __ASM_MIPS_BARRIER_H_WRAPPER 1
-
-#include <asm/system.h>
-
-/* Not sure whether these really need to be defined, but the conservative
- * choice seems to be to define them. */
-#define CONFIG_WEAK_ORDERING 1
-#define CONFIG_WEAK_REORDERING_BEYOND_LLSC 1
-
-#if defined(CONFIG_WEAK_ORDERING) && defined(CONFIG_SMP)
-#define __WEAK_ORDERING_MB " sync \n"
-#else
-#define __WEAK_ORDERING_MB " \n"
-#endif
-#if defined(CONFIG_WEAK_REORDERING_BEYOND_LLSC) && defined(CONFIG_SMP)
-#define __WEAK_LLSC_MB " sync \n"
-#else
-#define __WEAK_LLSC_MB " \n"
-#endif
-
-#define smp_mb() __asm__ __volatile__(__WEAK_ORDERING_MB : : :"memory")
-#define smp_rmb() __asm__ __volatile__(__WEAK_ORDERING_MB : : :"memory")
-#define smp_wmb() __asm__ __volatile__(__WEAK_ORDERING_MB : : :"memory")
-
-
-#endif /* asm/barrier.h */
+++ /dev/null
-#ifndef __ASM_MIPS_BREAK_H_WRAPPER
-#define __ASM_MIPS_BREAK_H_WRAPPER 1
-
-#include <linux/version.h>
-#include_next <asm/break.h>
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,25)
-
-/*
- * The following break codes are or were in use for specific purposes in
- * other MIPS operating systems. Linux/MIPS doesn't use all of them. The
- * unused ones are here as placeholders; we might encounter them in
- * non-Linux/MIPS object files or make use of them in the future.
- */
-#define BRK_USERBP 0 /* User bp (used by debuggers) */
-#define BRK_KERNELBP 1 /* Break in the kernel */
-#define BRK_ABORT 2 /* Sometimes used by abort(3) to SIGIOT */
-#define BRK_BD_TAKEN 3 /* For bd slot emulation - not implemented */
-#define BRK_BD_NOTTAKEN 4 /* For bd slot emulation - not implemented */
-#define BRK_SSTEPBP 5 /* User bp (used by debuggers) */
-#define BRK_OVERFLOW 6 /* Overflow check */
-#define BRK_DIVZERO 7 /* Divide by zero check */
-#define BRK_RANGE 8 /* Range error check */
-#define BRK_STACKOVERFLOW 9 /* For Ada stackchecking */
-#define BRK_NORLD 10 /* No rld found - not used by Linux/MIPS */
-#define _BRK_THREADBP 11 /* For threads, user bp (used by debuggers) */
-#define BRK_MULOVF 1023 /* Multiply overflow */
-#define BRK_BUG 512 /* Used by BUG() */
-
-#endif /* linux kernel < 2.4.25 */
-
-#endif /* asm/break.h */
+++ /dev/null
-#ifndef __ASM_MIPS_PAGE_H_WRAPPER
-#define __ASM_MIPS_PAGE_H_WRAPPER 1
-
-#include <linux/version.h>
-#include_next <asm/page.h>
-#include <asm/break.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,25)
-
-#define BUG() \
-do { \
- __asm__ __volatile__("break %0" : : "i" (BRK_BUG)); \
-} while (0)
-
-#endif /* linux kernel < 2.4.25 */
-
-#endif /* asm/page.h */
+++ /dev/null
-#ifndef __ASM_MIPS_SYSTEM_H_WRAPPER
-#define __ASM_MIPS_SYSTEM_H_WRAPPER 1
-
-#include_next <asm/system.h>
-
-#define __HAVE_ARCH_CMPXCHG 1
-
-static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old,
- unsigned long new)
-{
- __u32 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqz $1, 3f \n"
- "2: \n"
- " .subsection 2 \n"
- "3: b 1b \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- local_irq_restore(flags); /* implies memory barrier */
- }
-
- smp_llsc_mb();
-
- return retval;
-}
-
-static inline unsigned long __cmpxchg_u32_local(volatile int * m,
- unsigned long old, unsigned long new)
-{
- __u32 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqz $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- local_irq_restore(flags); /* implies memory barrier */
- }
-
- return retval;
-}
-
-#ifdef CONFIG_64BIT
-static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old,
- unsigned long new)
-{
- __u64 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqz $1, 3f \n"
- "2: \n"
- " .subsection 2 \n"
- "3: b 1b \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- local_irq_restore(flags); /* implies memory barrier */
- }
-
- smp_llsc_mb();
-
- return retval;
-}
-
-static inline unsigned long __cmpxchg_u64_local(volatile int * m,
- unsigned long old, unsigned long new)
-{
- __u64 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqz $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- local_irq_restore(flags); /* implies memory barrier */
- }
-
- return retval;
-}
-
-#else
-extern unsigned long __cmpxchg_u64_unsupported_on_32bit_kernels(
- volatile int * m, unsigned long old, unsigned long new);
-#define __cmpxchg_u64 __cmpxchg_u64_unsupported_on_32bit_kernels
-extern unsigned long __cmpxchg_u64_local_unsupported_on_32bit_kernels(
- volatile int * m, unsigned long old, unsigned long new);
-#define __cmpxchg_u64_local __cmpxchg_u64_local_unsupported_on_32bit_kernels
-#endif
-
-/* This function doesn't exist, so you'll get a linker error
- if something tries to do an invalid cmpxchg(). */
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-static inline unsigned long __cmpxchg(volatile void * ptr, unsigned long old,
- unsigned long new, int size)
-{
- switch (size) {
- case 4:
- return __cmpxchg_u32(ptr, old, new);
- case 8:
- return __cmpxchg_u64(ptr, old, new);
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-static inline unsigned long __cmpxchg_local(volatile void * ptr,
- unsigned long old, unsigned long new, int size)
-{
- switch (size) {
- case 4:
- return __cmpxchg_u32_local(ptr, old, new);
- case 8:
- return __cmpxchg_u64_local(ptr, old, new);
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-#define cmpxchg(ptr,old,new) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr), \
- (unsigned long)(old), (unsigned long)(new),sizeof(*(ptr))))
-
-#define cmpxchg_local(ptr,old,new) \
- ((__typeof__(*(ptr)))__cmpxchg_local((ptr), \
- (unsigned long)(old), (unsigned long)(new),sizeof(*(ptr))))
-
-#endif /* asm/system.h */
+++ /dev/null
-#ifndef _ASM_GENERIC_BUG_H
-#define _ASM_GENERIC_BUG_H
-
-#include <linux/compiler.h>
-
-#define WARN_ON_ONCE(condition) ({ \
- static int __warned; \
- int __ret_warn_once = !!(condition); \
- \
- if (unlikely(__ret_warn_once) && !__warned) { \
- WARN_ON(1); \
- __warned = 1; \
- } \
- unlikely(__ret_warn_once); \
-})
-
-#endif
+++ /dev/null
-#ifndef __ASM_SYSTEM_WRAPPER_H
-#define __ASM_SYSTEM_WRAPPER_H 1
-
-#include_next <asm/system.h>
-
-#ifdef CONFIG_ALPHA
-#define read_barrier_depends __asm__ __volatile__("mb": : :"memory")
-#else
-#define read_barrier_depends() do { } while(0)
-#endif
-
-#ifdef CONFIG_SMP
-#define smp_read_barrier_depends() read_barrier_depends()
-#else
-#define smp_read_barrier_depends() do { } while(0)
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_COMPILER_WRAPPER_H
-#define __LINUX_COMPILER_WRAPPER_H
-
-#include_next <linux/compiler.h>
-
-# define __force
-
-#endif
+++ /dev/null
-#ifndef __LINUX_DELAY_WRAPPER_H
-#define __LINUX_DELAY_WRAPPER_H 1
-
-#include_next <linux/delay.h>
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,29)
-#include <linux/time.h>
-#include <linux/sched.h>
-#include <asm/param.h>
-/*
- * We define MAX_MSEC_OFFSET as the maximal value that can be accepted by
- * msecs_to_jiffies() without risking a multiply overflow. This function
- * returns MAX_JIFFY_OFFSET for arguments above those values.
- */
-
-#if HZ <= 1000 && !(1000 % HZ)
-# define MAX_MSEC_OFFSET \
- (ULONG_MAX - (1000 / HZ) + 1)
-#elif HZ > 1000 && !(HZ % 1000)
-# define MAX_MSEC_OFFSET \
- (ULONG_MAX / (HZ / 1000))
-#else
-# define MAX_MSEC_OFFSET \
- ((ULONG_MAX - 999) / HZ)
-#endif
-
-/*
- * Convert jiffies to milliseconds and back.
- *
- * Avoid unnecessary multiplications/divisions in the
- * two most common HZ cases:
- */
-static inline unsigned int jiffies_to_msecs(const unsigned long j)
-{
-#if HZ <= 1000 && !(1000 % HZ)
- return (1000 / HZ) * j;
-#elif HZ > 1000 && !(HZ % 1000)
- return (j + (HZ / 1000) - 1)/(HZ / 1000);
-#else
- return (j * 1000) / HZ;
-#endif
-}
-
-static inline unsigned long msecs_to_jiffies(const unsigned int m)
-{
- if (MAX_MSEC_OFFSET < UINT_MAX && m > (unsigned int)MAX_MSEC_OFFSET)
- return MAX_JIFFY_OFFSET;
-#if HZ <= 1000 && !(1000 % HZ)
- return ((unsigned long)m + (1000 / HZ) - 1) / (1000 / HZ);
-#elif HZ > 1000 && !(HZ % 1000)
- return (unsigned long)m * (HZ / 1000);
-#else
- return ((unsigned long)m * HZ + 999) / 1000;
-#endif
-}
-
-#endif /* linux kernel < 2.4.29 */
-
-/**
- * msleep_interruptible - sleep waiting for waitqueue interruptions
- * @msecs: Time in milliseconds to sleep for
- */
-static inline unsigned long msleep_interruptible(unsigned int msecs)
-{
- unsigned long timeout = msecs_to_jiffies(msecs);
-
- while (timeout && !signal_pending(current)) {
- set_current_state(TASK_INTERRUPTIBLE);
- timeout = schedule_timeout(timeout);
- }
- return jiffies_to_msecs(timeout);
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_DMI_WRAPPER_H
-#define __LINUX_DMI_WRAPPER_H 1
-
-enum dmi_field {
- DMI_NONE,
- DMI_BIOS_VENDOR,
- DMI_BIOS_VERSION,
- DMI_BIOS_DATE,
- DMI_SYS_VENDOR,
- DMI_PRODUCT_NAME,
- DMI_PRODUCT_VERSION,
- DMI_PRODUCT_SERIAL,
- DMI_PRODUCT_UUID,
- DMI_BOARD_VENDOR,
- DMI_BOARD_NAME,
- DMI_BOARD_VERSION,
- DMI_BOARD_SERIAL,
- DMI_BOARD_ASSET_TAG,
- DMI_CHASSIS_VENDOR,
- DMI_CHASSIS_TYPE,
- DMI_CHASSIS_VERSION,
- DMI_CHASSIS_SERIAL,
- DMI_CHASSIS_ASSET_TAG,
- DMI_STRING_MAX
-};
-
-/* 2.4 kernels didn't provide a general ability to query DMI. We'll just
- * always return NULL, since this functionality isn't critical. */
-static inline
-const char *dmi_get_system_info(int field) {
- return NULL;
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_ETHERDEVICE_WRAPPER_H
-#define __LINUX_ETHERDEVICE_WRAPPER_H 1
-
-#include_next <linux/etherdevice.h>
-#include <linux/random.h>
-
-/**
- * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is a multicast address.
- * By definition the broadcast address is also a multicast address.
- */
-static inline int is_multicast_ether_addr(const u8 *addr)
-{
- return (0x01 & addr[0]);
-}
-
-/**
- * is_local_ether_addr - Determine if the Ethernet address is locally-assigned
- * one (IEEE 802).
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is a local address.
- */
-static inline int is_local_ether_addr(const u8 *addr)
-{
- return (0x02 & addr[0]);
-}
-
-/**
- * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Return true if the address is the broadcast address.
- */
-static inline int is_broadcast_ether_addr(const u8 *addr)
-{
- return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
-}
-
-/**
- * random_ether_addr - Generate software assigned random Ethernet address
- * @addr: Pointer to a six-byte array containing the Ethernet address
- *
- * Generate a random Ethernet address (MAC) that is not multicast
- * and has the local assigned bit set.
- */
-static inline void random_ether_addr(u8 *addr)
-{
- get_random_bytes (addr, ETH_ALEN);
- addr [0] &= 0xfe; /* clear multicast bit */
- addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
-}
-
-/**
- * compare_ether_addr - Compare two Ethernet addresses
- * @addr1: Pointer to a six-byte array containing the Ethernet address
- * @addr2: Pointer other six-byte array containing the Ethernet address
- *
- * Compare two ethernet addresses, returns 0 if equal
- */
-static inline unsigned compare_ether_addr(const u8 *addr1, const u8 *addr2)
-{
- const u16 *a = (const u16 *) addr1;
- const u16 *b = (const u16 *) addr2;
-
- return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0;
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_GENERIC_NETLINK_H
-#define __LINUX_GENERIC_NETLINK_H
-
-#include <linux/netlink.h>
-
-#define GENL_NAMSIZ 16 /* length of family name */
-
-#define GENL_MIN_ID NLMSG_MIN_TYPE
-#define GENL_MAX_ID 1023
-
-struct genlmsghdr {
- __u8 cmd;
- __u8 version;
- __u16 reserved;
-};
-
-#define GENL_HDRLEN NLMSG_ALIGN(sizeof(struct genlmsghdr))
-
-#define GENL_ADMIN_PERM 0x01
-#define GENL_CMD_CAP_DO 0x02
-#define GENL_CMD_CAP_DUMP 0x04
-#define GENL_CMD_CAP_HASPOL 0x08
-
-/*
- * List of reserved static generic netlink identifiers:
- */
-#define GENL_ID_GENERATE 0
-#define GENL_ID_CTRL NLMSG_MIN_TYPE
-
-/**************************************************************************
- * Controller
- **************************************************************************/
-
-enum {
- CTRL_CMD_UNSPEC,
- CTRL_CMD_NEWFAMILY,
- CTRL_CMD_DELFAMILY,
- CTRL_CMD_GETFAMILY,
- CTRL_CMD_NEWOPS,
- CTRL_CMD_DELOPS,
- CTRL_CMD_GETOPS,
- CTRL_CMD_NEWMCAST_GRP,
- CTRL_CMD_DELMCAST_GRP,
- CTRL_CMD_GETMCAST_GRP, /* unused */
- __CTRL_CMD_MAX,
-};
-
-#define CTRL_CMD_MAX (__CTRL_CMD_MAX - 1)
-
-enum {
- CTRL_ATTR_UNSPEC,
- CTRL_ATTR_FAMILY_ID,
- CTRL_ATTR_FAMILY_NAME,
- CTRL_ATTR_VERSION,
- CTRL_ATTR_HDRSIZE,
- CTRL_ATTR_MAXATTR,
- CTRL_ATTR_OPS,
- CTRL_ATTR_MCAST_GROUPS,
- __CTRL_ATTR_MAX,
-};
-
-#define CTRL_ATTR_MAX (__CTRL_ATTR_MAX - 1)
-
-enum {
- CTRL_ATTR_OP_UNSPEC,
- CTRL_ATTR_OP_ID,
- CTRL_ATTR_OP_FLAGS,
- __CTRL_ATTR_OP_MAX,
-};
-
-#define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1)
-
-enum {
- CTRL_ATTR_MCAST_GRP_UNSPEC,
- CTRL_ATTR_MCAST_GRP_NAME,
- CTRL_ATTR_MCAST_GRP_ID,
- __CTRL_ATTR_MCAST_GRP_MAX,
-};
-
-#define CTRL_ATTR_MCAST_GRP_MAX (__CTRL_ATTR_MCAST_GRP_MAX - 1)
-
-#endif /* __LINUX_GENERIC_NETLINK_H */
+++ /dev/null
-#ifndef __LINUX_GFP_WRAPPER_H
-#define __LINUX_GFP_WRAPPER_H 1
-
-#include <linux/mm.h>
-
-#endif /* linux/gfp.h */
+++ /dev/null
-#ifndef __LINUX_ICMP_WRAPPER_H
-#define __LINUX_ICMP_WRAPPER_H 1
-
-#include_next <linux/icmp.h>
-
-#ifdef __KERNEL__
-#include <linux/skbuff.h>
-
-static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
-{
- return (struct icmphdr *)skb_transport_header(skb);
-}
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_IF_ETHER_WRAPPER_H
-#define __LINUX_IF_ETHER_WRAPPER_H 1
-
-#include_next <linux/if_ether.h>
-
-#ifdef __KERNEL__
-#include <linux/skbuff.h>
-
-static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
-{
- return (struct ethhdr *)skb_mac_header(skb);
-}
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_IF_VLAN_WRAPPER_H
-#define __LINUX_IF_VLAN_WRAPPER_H 1
-
-#include_next <linux/if_vlan.h>
-
-#ifdef __KERNEL__
-#include <linux/skbuff.h>
-#include <linux/if_vlan.h>
-#include <linux/version.h>
-
-static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb)
-{
- return (struct vlan_ethhdr *)skb_mac_header(skb);
-}
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,26)
-static inline struct sk_buff *vlan_put_tag(struct sk_buff *skb, unsigned short tag)
-{
- struct vlan_ethhdr *veth;
-
- if (skb_headroom(skb) < VLAN_HLEN) {
- struct sk_buff *sk_tmp = skb;
- skb = skb_realloc_headroom(sk_tmp, VLAN_HLEN);
- kfree_skb(sk_tmp);
- if (!skb) {
- printk(KERN_ERR "vlan: failed to realloc headroom\n");
- return NULL;
- }
- } else {
- skb = skb_unshare(skb, GFP_ATOMIC);
- if (!skb) {
- printk(KERN_ERR "vlan: failed to unshare skbuff\n");
- return NULL;
- }
- }
-
- veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN);
-
- /* Move the mac addresses to the beginning of the new header. */
- memmove(skb->data, skb->data + VLAN_HLEN, 2 * VLAN_ETH_ALEN);
-
- /* first, the ethernet type */
- veth->h_vlan_proto = htons(ETH_P_8021Q);
-
- /* now, the tag */
- veth->h_vlan_TCI = htons(tag);
-
- skb_reset_mac_header(skb);
-
- return skb;
-}
-
-#else
-
-#define vlan_put_tag(x,y) fix_vlan_put_tag((x),(y));
-
-/* For some reason, older versions of vlan_put_tag do not adjust the
- * pointer to the beginning of the MAC header. We get around that by
- * this hack. Ugh. */
-static inline struct sk_buff *fix_vlan_put_tag(struct sk_buff *skb, unsigned short tag)
-{
- skb = (vlan_put_tag)(skb, tag);
- skb_reset_mac_header(skb);
-
- return skb;
-}
-#endif
-
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_IP_WRAPPER_H
-#define __LINUX_IP_WRAPPER_H 1
-
-#include_next <linux/ip.h>
-
-#ifdef __KERNEL__
-#include <linux/skbuff.h>
-
-static inline struct iphdr *ip_hdr(const struct sk_buff *skb)
-{
- return (struct iphdr *)skb_network_header(skb);
-}
-
-static inline unsigned int ip_hdrlen(const struct sk_buff *skb)
-{
- return ip_hdr(skb)->ihl * 4;
-}
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_IPV6_WRAPPER_H
-#define __LINUX_IPV6_WRAPPER_H 1
-
-#include_next <linux/ipv6.h>
-
-static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb)
-{
- return (struct ipv6hdr *)skb_network_header(skb);
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_JIFFIES_WRAPPER_H
-#define __LINUX_JIFFIES_WRAPPER_H 1
-
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/timer.h>
-
-extern unsigned long volatile jiffies;
-
-/* 'jiffies_64' are not supported in 2.4 kernels. Here we fake
- * compatibility by always just returning the plain 'jiffies' value.
- * This means jiffies will wrap every 49 days. */
-#define get_jiffies_64(void) ((u64)jiffies)
-
-/* Same as above, but does so with platform independent 64bit types.
- * These must be used when utilizing jiffies_64 (i.e. return value of
- * get_jiffies_64() */
-#define time_after64(a,b) \
- (typecheck(__u64, a) && \
- typecheck(__u64, b) && \
- ((__s64)(b) - (__s64)(a) < 0))
-#define time_before64(a,b) time_after64(b,a)
-
-#define time_after_eq64(a,b) \
- (typecheck(__u64, a) && \
- typecheck(__u64, b) && \
- ((__s64)(a) - (__s64)(b) >= 0))
-#define time_before_eq64(a,b) time_after_eq64(b,a)
-
-#endif
+++ /dev/null
-#ifndef __LINUX_KERNEL_WRAPPER_H
-#define __LINUX_KERNEL_WRAPPER_H 1
-
-#include_next <linux/kernel.h>
-#include <linux/config.h>
-#include <asm/bug.h>
-
-/**
- * container_of - cast a member of a structure out to the containing structure
- * @ptr: the pointer to the member.
- * @type: the type of the container struct this is embedded in.
- * @member: the name of the member within the struct.
- *
- */
-#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
-
-/*
- * Check at compile time that something is of a particular type.
- * Always evaluates to 1 so you may use it easily in comparisons.
- */
-#define typecheck(type,x) \
-({ type __dummy; \
- typeof(x) __dummy2; \
- (void)(&__dummy == &__dummy2); \
- 1; \
-})
-
-/*
- * Check at compile time that 'function' is a certain type, or is a pointer
- * to that type (needs to use typedef for the function type.)
- */
-#define typecheck_fn(type,function) \
-({ typeof(type) __tmp = function; \
- (void)__tmp; \
-})
-
-int vprintk(const char *msg, ...)
- __attribute__((format(printf, 1, 0)));
-
-/* Force a compilation error if condition is true */
-#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
-
-/**
- * might_sleep - annotation for functions that can sleep
- *
- * this macro will print a stack trace if it is executed in an atomic
- * context (spinlock, irq-handler, ...).
- *
- * This is a useful debugging help to be able to catch problems early and not
- * be bitten later when the calling function happens to sleep when it is not
- * supposed to.
- */
-#define might_resched() do { } while (0)
-
-#ifdef CONFIG_DEBUG_SPINLOCK
- void __might_sleep(char *file, int line);
-# define might_sleep() \
- do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)
-#else
-# define might_sleep() do { might_resched(); } while (0)
-#endif
-
-#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
-
-#endif
+++ /dev/null
-#ifndef _LINUX_KTHREAD_H
-#define _LINUX_KTHREAD_H
-/* Simple interface for creating and stopping kernel threads without mess. */
-#include <linux/sched.h>
-
-struct task_struct *kthread_create(int (*threadfn)(void *data),
- void *data,
- const char namefmt[], ...);
-
-/**
- * kthread_run - create and wake a thread.
- * @threadfn: the function to run until signal_pending(current).
- * @data: data ptr for @threadfn.
- * @namefmt: printf-style name for the thread.
- *
- * Description: Convenient wrapper for kthread_create() followed by
- * wake_up_process(). Returns the kthread or ERR_PTR(-ENOMEM).
- */
-#define kthread_run(threadfn, data, namefmt, ...) \
-({ \
- struct task_struct *__k \
- = kthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \
- if (!IS_ERR(__k)) \
- wake_up_process(__k); \
- __k; \
-})
-
-int kthread_stop(struct task_struct *k);
-int kthread_should_stop(void);
-
-int kthreadd(void *unused);
-extern struct task_struct *kthreadd_task;
-
-#endif /* _LINUX_KTHREAD_H */
+++ /dev/null
-#ifndef __LINUX_LIST_WRAPPER_H
-#define __LINUX_LIST_WRAPPER_H
-
-#ifdef __KERNEL__
-
-#include_next <linux/list.h>
-#include <asm/system.h>
-
-#define LIST_POISON1 ((void *) 0x00100100)
-#define LIST_POISON2 ((void *) 0x00200200)
-
-/*
- * Insert a new entry between two known consecutive entries.
- *
- * This is only for internal list manipulation where we know
- * the prev/next entries already!
- */
-static inline void __list_add_rcu(struct list_head * new,
- struct list_head * prev, struct list_head * next)
-{
- new->next = next;
- new->prev = prev;
- smp_wmb();
- next->prev = new;
- prev->next = new;
-}
-
-/**
- * list_add_rcu - add a new entry to rcu-protected list
- * @new: new entry to be added
- * @head: list head to add it after
- *
- * Insert a new entry after the specified head.
- * This is good for implementing stacks.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as list_add_rcu()
- * or list_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * list_for_each_entry_rcu().
- */
-static inline void list_add_rcu(struct list_head *new, struct list_head *head)
-{
- __list_add_rcu(new, head, head->next);
-}
-
-/**
- * list_add_tail_rcu - add a new entry to rcu-protected list
- * @new: new entry to be added
- * @head: list head to add it before
- *
- * Insert a new entry before the specified head.
- * This is useful for implementing queues.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as list_add_tail_rcu()
- * or list_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * list_for_each_entry_rcu().
- */
-static inline void list_add_tail_rcu(struct list_head *new,
- struct list_head *head)
-{
- __list_add_rcu(new, head->prev, head);
-}
-
-/**
- * list_del_rcu - deletes entry from list without re-initialization
- * @entry: the element to delete from the list.
- *
- * Note: list_empty() on entry does not return true after this,
- * the entry is in an undefined state. It is useful for RCU based
- * lockfree traversal.
- *
- * In particular, it means that we can not poison the forward
- * pointers that may still be used for walking the list.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as list_del_rcu()
- * or list_add_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * list_for_each_entry_rcu().
- *
- * Note that the caller is not permitted to immediately free
- * the newly deleted entry. Instead, either synchronize_rcu()
- * or call_rcu() must be used to defer freeing until an RCU
- * grace period has elapsed.
- */
-static inline void list_del_rcu(struct list_head *entry)
-{
- __list_del(entry->prev, entry->next);
- entry->prev = LIST_POISON2;
-}
-
-/**
- * list_replace_rcu - replace old entry by new one
- * @old : the element to be replaced
- * @new : the new element to insert
- *
- * The @old entry will be replaced with the @new entry atomically.
- * Note: @old should not be empty.
- */
-static inline void list_replace_rcu(struct list_head *old,
- struct list_head *new)
-{
- new->next = old->next;
- new->prev = old->prev;
- smp_wmb();
- new->next->prev = new;
- new->prev->next = new;
- old->prev = LIST_POISON2;
-}
-/**
- * list_for_each_rcu - iterate over an rcu-protected list
- * @pos: the &struct list_head to use as a loop cursor.
- * @head: the head for your list.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_rcu(pos, head) \
- for (pos = (head)->next; \
- prefetch(rcu_dereference(pos)->next), pos != (head); \
- pos = pos->next)
-
-#define __list_for_each_rcu(pos, head) \
- for (pos = (head)->next; \
- rcu_dereference(pos) != (head); \
- pos = pos->next)
-
-/**
- * list_for_each_entry_rcu - iterate over rcu list of given type
- * @pos: the type * to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_entry_rcu(pos, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member); \
- prefetch(rcu_dereference(pos)->member.next), \
- &pos->member != (head); \
- pos = list_entry(pos->member.next, typeof(*pos), member))
-
-
-/**
- * list_for_each_continue_rcu
- * @pos: the &struct list_head to use as a loop cursor.
- * @head: the head for your list.
- *
- * Iterate over an rcu-protected list, continuing after current point.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as list_add_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define list_for_each_continue_rcu(pos, head) \
- for ((pos) = (pos)->next; \
- prefetch(rcu_dereference((pos))->next), (pos) != (head); \
- (pos) = (pos)->next)
-
-/*
- * Double linked lists with a single pointer list head.
- * Mostly useful for hash tables where the two pointer list head is
- * too wasteful.
- * You lose the ability to access the tail in O(1).
- */
-
-struct hlist_head {
- struct hlist_node *first;
-};
-
-struct hlist_node {
- struct hlist_node *next, **pprev;
-};
-
-#define HLIST_HEAD_INIT { .first = NULL }
-#define HLIST_HEAD(name) struct hlist_head name = { .first = NULL }
-#define INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
-static inline void INIT_HLIST_NODE(struct hlist_node *h)
-{
- h->next = NULL;
- h->pprev = NULL;
-}
-
-static inline int hlist_unhashed(const struct hlist_node *h)
-{
- return !h->pprev;
-}
-
-static inline int hlist_empty(const struct hlist_head *h)
-{
- return !h->first;
-}
-
-static inline void __hlist_del(struct hlist_node *n)
-{
- struct hlist_node *next = n->next;
- struct hlist_node **pprev = n->pprev;
- *pprev = next;
- if (next)
- next->pprev = pprev;
-}
-
-static inline void hlist_del(struct hlist_node *n)
-{
- __hlist_del(n);
- n->next = LIST_POISON1;
- n->pprev = LIST_POISON2;
-}
-
-/**
- * hlist_del_rcu - deletes entry from hash list without re-initialization
- * @n: the element to delete from the hash list.
- *
- * Note: list_unhashed() on entry does not return true after this,
- * the entry is in an undefined state. It is useful for RCU based
- * lockfree traversal.
- *
- * In particular, it means that we can not poison the forward
- * pointers that may still be used for walking the hash list.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry().
- */
-static inline void hlist_del_rcu(struct hlist_node *n)
-{
- __hlist_del(n);
- n->pprev = LIST_POISON2;
-}
-
-static inline void hlist_del_init(struct hlist_node *n)
-{
- if (!hlist_unhashed(n)) {
- __hlist_del(n);
- INIT_HLIST_NODE(n);
- }
-}
-
-/**
- * hlist_replace_rcu - replace old entry by new one
- * @old : the element to be replaced
- * @new : the new element to insert
- *
- * The @old entry will be replaced with the @new entry atomically.
- */
-static inline void hlist_replace_rcu(struct hlist_node *old,
- struct hlist_node *new)
-{
- struct hlist_node *next = old->next;
-
- new->next = next;
- new->pprev = old->pprev;
- smp_wmb();
- if (next)
- new->next->pprev = &new->next;
- *new->pprev = new;
- old->pprev = LIST_POISON2;
-}
-
-static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
-{
- struct hlist_node *first = h->first;
- n->next = first;
- if (first)
- first->pprev = &n->next;
- h->first = n;
- n->pprev = &h->first;
-}
-
-
-/**
- * hlist_add_head_rcu
- * @n: the element to add to the hash list.
- * @h: the list to add to.
- *
- * Description:
- * Adds the specified element to the specified hlist,
- * while permitting racing traversals.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry_rcu(), used to prevent memory-consistency
- * problems on Alpha CPUs. Regardless of the type of CPU, the
- * list-traversal primitive must be guarded by rcu_read_lock().
- */
-static inline void hlist_add_head_rcu(struct hlist_node *n,
- struct hlist_head *h)
-{
- struct hlist_node *first = h->first;
- n->next = first;
- n->pprev = &h->first;
- smp_wmb();
- if (first)
- first->pprev = &n->next;
- h->first = n;
-}
-
-/* next must be != NULL */
-static inline void hlist_add_before(struct hlist_node *n,
- struct hlist_node *next)
-{
- n->pprev = next->pprev;
- n->next = next;
- next->pprev = &n->next;
- *(n->pprev) = n;
-}
-
-static inline void hlist_add_after(struct hlist_node *n,
- struct hlist_node *next)
-{
- next->next = n->next;
- n->next = next;
- next->pprev = &n->next;
-
- if(next->next)
- next->next->pprev = &next->next;
-}
-
-/**
- * hlist_add_before_rcu
- * @n: the new element to add to the hash list.
- * @next: the existing element to add the new element before.
- *
- * Description:
- * Adds the specified element to the specified hlist
- * before the specified node while permitting racing traversals.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry_rcu(), used to prevent memory-consistency
- * problems on Alpha CPUs.
- */
-static inline void hlist_add_before_rcu(struct hlist_node *n,
- struct hlist_node *next)
-{
- n->pprev = next->pprev;
- n->next = next;
- smp_wmb();
- next->pprev = &n->next;
- *(n->pprev) = n;
-}
-
-/**
- * hlist_add_after_rcu
- * @prev: the existing element to add the new element after.
- * @n: the new element to add to the hash list.
- *
- * Description:
- * Adds the specified element to the specified hlist
- * after the specified node while permitting racing traversals.
- *
- * The caller must take whatever precautions are necessary
- * (such as holding appropriate locks) to avoid racing
- * with another list-mutation primitive, such as hlist_add_head_rcu()
- * or hlist_del_rcu(), running on this same list.
- * However, it is perfectly legal to run concurrently with
- * the _rcu list-traversal primitives, such as
- * hlist_for_each_entry_rcu(), used to prevent memory-consistency
- * problems on Alpha CPUs.
- */
-static inline void hlist_add_after_rcu(struct hlist_node *prev,
- struct hlist_node *n)
-{
- n->next = prev->next;
- n->pprev = &prev->next;
- smp_wmb();
- prev->next = n;
- if (n->next)
- n->next->pprev = &n->next;
-}
-
-#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
-
-#define hlist_for_each(pos, head) \
- for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \
- pos = pos->next)
-
-#define hlist_for_each_safe(pos, n, head) \
- for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
- pos = n)
-
-/**
- * hlist_for_each_entry - iterate over list of given type
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry(tpos, pos, head, member) \
- for (pos = (head)->first; \
- pos && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-/**
- * hlist_for_each_entry_continue - iterate over a hlist continuing after current point
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry_continue(tpos, pos, member) \
- for (pos = (pos)->next; \
- pos && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-/**
- * hlist_for_each_entry_from - iterate over a hlist continuing from current point
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry_from(tpos, pos, member) \
- for (; pos && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-/**
- * hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @n: another &struct hlist_node to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
- */
-#define hlist_for_each_entry_safe(tpos, pos, n, head, member) \
- for (pos = (head)->first; \
- pos && ({ n = pos->next; 1; }) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = n)
-
-/**
- * hlist_for_each_entry_rcu - iterate over rcu list of given type
- * @tpos: the type * to use as a loop cursor.
- * @pos: the &struct hlist_node to use as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the hlist_node within the struct.
- *
- * This list-traversal primitive may safely run concurrently with
- * the _rcu list-mutation primitives such as hlist_add_head_rcu()
- * as long as the traversal is guarded by rcu_read_lock().
- */
-#define hlist_for_each_entry_rcu(tpos, pos, head, member) \
- for (pos = (head)->first; \
- rcu_dereference(pos) && ({ prefetch(pos->next); 1;}) && \
- ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
- pos = pos->next)
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,23)
-/**
- * list_for_each_entry_safe - iterate over list of given type safe against remov
-al of list entry
- * @pos: the type * to use as a loop counter.
- * @n: another type * to use as temporary storage
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- */
-#define list_for_each_entry_safe(pos, n, head, member) \
- for (pos = list_entry((head)->next, typeof(*pos), member), \
- n = list_entry(pos->member.next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = n, n = list_entry(n->member.next, typeof(*n), member))
-#endif /* linux kernel < 2.4.23 */
-
-
-#else
-#warning "don't include kernel headers in userspace"
-#endif /* __KERNEL__ */
-#endif
+++ /dev/null
-#ifndef __LINUX_LLC_H
-#define __LINUX_LLC_H
-/*
- * IEEE 802.2 User Interface SAPs for Linux, data structures and indicators.
- *
- * Copyright (c) 2001 by Jay Schulist <jschlst@samba.org>
- *
- * This program can be redistributed or modified under the terms of the
- * GNU General Public License as published by the Free Software Foundation.
- * This program is distributed without any warranty or implied warranty
- * of merchantability or fitness for a particular purpose.
- *
- * See the GNU General Public License for more details.
- */
-#define __LLC_SOCK_SIZE__ 16 /* sizeof(sockaddr_llc), word align. */
-struct sockaddr_llc {
- sa_family_t sllc_family; /* AF_LLC */
- sa_family_t sllc_arphrd; /* ARPHRD_ETHER */
- unsigned char sllc_test;
- unsigned char sllc_xid;
- unsigned char sllc_ua; /* UA data, only for SOCK_STREAM. */
- unsigned char sllc_sap;
- unsigned char sllc_mac[IFHWADDRLEN];
- unsigned char __pad[__LLC_SOCK_SIZE__ - sizeof(sa_family_t) * 2 -
- sizeof(unsigned char) * 4 - IFHWADDRLEN];
-};
-
-/* sockopt definitions. */
-enum llc_sockopts {
- LLC_OPT_UNKNOWN = 0,
- LLC_OPT_RETRY, /* max retrans attempts. */
- LLC_OPT_SIZE, /* max PDU size (octets). */
- LLC_OPT_ACK_TMR_EXP, /* ack expire time (secs). */
- LLC_OPT_P_TMR_EXP, /* pf cycle expire time (secs). */
- LLC_OPT_REJ_TMR_EXP, /* rej sent expire time (secs). */
- LLC_OPT_BUSY_TMR_EXP, /* busy state expire time (secs). */
- LLC_OPT_TX_WIN, /* tx window size. */
- LLC_OPT_RX_WIN, /* rx window size. */
- LLC_OPT_MAX
-};
-
-#define LLC_OPT_MAX_RETRY 100
-#define LLC_OPT_MAX_SIZE 4196
-#define LLC_OPT_MAX_WIN 127
-#define LLC_OPT_MAX_ACK_TMR_EXP 60
-#define LLC_OPT_MAX_P_TMR_EXP 60
-#define LLC_OPT_MAX_REJ_TMR_EXP 60
-#define LLC_OPT_MAX_BUSY_TMR_EXP 60
-
-/* LLC SAP types. */
-#define LLC_SAP_NULL 0x00 /* NULL SAP. */
-#define LLC_SAP_LLC 0x02 /* LLC Sublayer Managment. */
-#define LLC_SAP_SNA 0x04 /* SNA Path Control. */
-#define LLC_SAP_PNM 0x0E /* Proway Network Managment. */
-#define LLC_SAP_IP 0x06 /* TCP/IP. */
-#define LLC_SAP_BSPAN 0x42 /* Bridge Spanning Tree Proto */
-#define LLC_SAP_MMS 0x4E /* Manufacturing Message Srv. */
-#define LLC_SAP_8208 0x7E /* ISO 8208 */
-#define LLC_SAP_3COM 0x80 /* 3COM. */
-#define LLC_SAP_PRO 0x8E /* Proway Active Station List */
-#define LLC_SAP_SNAP 0xAA /* SNAP. */
-#define LLC_SAP_BANYAN 0xBC /* Banyan. */
-#define LLC_SAP_IPX 0xE0 /* IPX/SPX. */
-#define LLC_SAP_NETBEUI 0xF0 /* NetBEUI. */
-#define LLC_SAP_LANMGR 0xF4 /* LanManager. */
-#define LLC_SAP_IMPL 0xF8 /* IMPL */
-#define LLC_SAP_DISC 0xFC /* Discovery */
-#define LLC_SAP_OSI 0xFE /* OSI Network Layers. */
-#define LLC_SAP_LAR 0xDC /* LAN Address Resolution */
-#define LLC_SAP_RM 0xD4 /* Resource Management */
-#define LLC_SAP_GLOBAL 0xFF /* Global SAP. */
-
-#ifdef __KERNEL__
-#define LLC_SAP_DYN_START 0xC0
-#define LLC_SAP_DYN_STOP 0xDE
-#define LLC_SAP_DYN_TRIES 4
-
-#define llc_ui_skb_cb(__skb) ((struct sockaddr_llc *)&((__skb)->cb[0]))
-#endif /* __KERNEL__ */
-#endif /* __LINUX_LLC_H */
+++ /dev/null
-#ifndef __LINUX_MODULE_WRAPPER_H
-#define __LINUX_MODULE_WRAPPER_H 1
-
-#include <linux/kernel.h>
-#include_next <linux/module.h>
-
-static inline int try_module_get(struct module *module)
-{
- if (module) {
- if (module == THIS_MODULE)
- MOD_INC_USE_COUNT;
- else
- printk("warning: try_module_get: module(%p) != THIS_MODULE(%p)\n",
- module, THIS_MODULE);
- }
- return 1;
-}
-
-static inline void module_put(struct module *module)
-{
- if (module) {
- if (module == THIS_MODULE)
- MOD_DEC_USE_COUNT;
- else
- printk("warning: module_put: module(%p) != THIS_MODULE(%p)\n",
- module, THIS_MODULE);
- }
-}
-
-#endif /* module.h */
+++ /dev/null
-#ifndef __LINUX_MUTEX_H
-#define __LINUX_MUTEX_H
-
-#include <asm/semaphore.h>
-
-struct mutex {
- struct semaphore sema;
-};
-
-#define mutex_init(mutex) init_MUTEX(&mutex->sema)
-#define mutex_destroy(mutex) do { } while (0)
-
-#define DEFINE_MUTEX(mutexname) \
- struct mutex mutexname = { __MUTEX_INITIALIZER(mutexname.sema) }
-
-/**
- * mutex_is_locked - is the mutex locked
- * @lock: the mutex to be queried
- *
- * Returns 1 if the mutex is locked, 0 if unlocked.
- */
-static inline int mutex_is_locked(struct mutex *lock)
-{
- return sem_getcount(&lock->sema) == 0;
-}
-
-/*
- * See kernel/mutex.c for detailed documentation of these APIs.
- * Also see Documentation/mutex-design.txt.
- */
-static inline void mutex_lock(struct mutex *lock)
-{
- down(&lock->sema);
-}
-
-static inline int mutex_lock_interruptible(struct mutex *lock)
-{
- return down_interruptible(&lock->sema);
-}
-
-#define mutex_lock_nested(lock, subclass) mutex_lock(lock)
-#define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock)
-
-/*
- * NOTE: mutex_trylock() follows the spin_trylock() convention,
- * not the down_trylock() convention!
- */
-static inline int mutex_trylock(struct mutex *lock)
-{
- return !down_trylock(&lock->sema);
-}
-
-static inline void mutex_unlock(struct mutex *lock)
-{
- up(&lock->sema);
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_NETDEVICE_WRAPPER_H
-#define __LINUX_NETDEVICE_WRAPPER_H 1
-
-#include_next <linux/netdevice.h>
-#include <linux/kernel.h>
-#include <linux/rcupdate.h>
-
-/*----------------------------------------------------------------------------
- * In 2.6.24, a namespace argument became required for dev_get_by_name.
- */
-#ifdef dev_get_by_name
-#undef dev_get_by_name
-#define dev_get_by_name(net, name) \
- compat_dev_get_by_name((name))
-static inline struct net_device *compat_dev_get_by_name(const char *name)
-{
- return (_set_ver(dev_get_by_name))(name);
-}
-#else
-#define dev_get_by_name(net, name) \
- dev_get_by_name((name))
-#endif /* dev_get_by_name */
-
-#ifdef dev_get_by_index
-#undef dev_get_by_index
-#define dev_get_by_index(net, ifindex) \
- compat_dev_get_by_index((ifindex))
-static inline struct net_device *compat_dev_get_by_index(int ifindex)
-{
- return (_set_ver(dev_get_by_index))(ifindex);
-}
-#else
-#define dev_get_by_index(net, ifindex) \
- dev_get_by_index((ifindex))
-#endif /* dev_get_by_index */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27)
-static inline void *netdev_priv(struct net_device *dev)
-{
- return dev->priv;
-}
-#endif
-
-/* Synchronize with packet receive processing. */
-static inline void synchronize_net(void)
-{
- synchronize_rcu();
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_NETLINK_WRAPPER_H
-#define __LINUX_NETLINK_WRAPPER_H 1
-
-#include <linux/skbuff.h>
-
-#include_next <linux/netlink.h>
-
-#define NETLINK_GENERIC 16
-
-#undef NLMSG_LENGTH
-#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
-#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN))
-
-#define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
-
-enum {
- NETLINK_UNCONNECTED = 0,
- NETLINK_CONNECTED,
-};
-
-/*
- * <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
- * +---------------------+- - -+- - - - - - - - - -+- - -+
- * | Header | Pad | Payload | Pad |
- * | (struct nlattr) | ing | | ing |
- * +---------------------+- - -+- - - - - - - - - -+- - -+
- * <-------------- nlattr->nla_len -------------->
- */
-
-struct nlattr
-{
- __u16 nla_len;
- __u16 nla_type;
-};
-
-#define NLA_ALIGNTO 4
-#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
-#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
-
-#ifdef __KERNEL__
-
-#include <linux/capability.h>
-#include <linux/skbuff.h>
-
-static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb)
-{
- return (struct nlmsghdr *)skb->data;
-}
-
-#define __nlmsg_put __rpl_nlmsg_put
-static __inline__ struct nlmsghdr *
-__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
-{
- struct nlmsghdr *nlh;
- int size = NLMSG_LENGTH(len);
-
- nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size));
- nlh->nlmsg_type = type;
- nlh->nlmsg_len = size;
- nlh->nlmsg_flags = flags;
- nlh->nlmsg_pid = pid;
- nlh->nlmsg_seq = seq;
- memset(NLMSG_DATA(nlh) + len, 0, NLMSG_ALIGN(size) - size);
- return nlh;
-}
-
-#define NLMSG_DEFAULT_SIZE (NLMSG_GOODSIZE - NLMSG_HDRLEN)
-
-#undef NLMSG_NEW
-#define NLMSG_NEW(skb, pid, seq, type, len, flags) \
-({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) \
- goto nlmsg_failure; \
- __nlmsg_put(skb, pid, seq, type, len, flags); })
-#endif
-
-#undef NLMSG_PUT
-#define NLMSG_PUT(skb, pid, seq, type, len) \
- NLMSG_NEW(skb, pid, seq, type, len, 0)
-
-#endif
+++ /dev/null
-#ifndef __LINUX_RANDOM_WRAPPER_H
-#define __LINUX_RANDOM_WRAPPER_H 1
-
-#include_next <linux/random.h>
-
-#ifdef __KERNEL__
-u32 random32(void);
-void srandom32(u32 seed);
-#endif
-
-#endif
+++ /dev/null
-/* In Linux 2.6.26, part of list.h was broken out into rculist.h. */
-#include <linux/list.h>
+++ /dev/null
-/*
- * Read-Copy Update mechanism for mutual exclusion
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2001
- *
- * Author: Dipankar Sarma <dipankar@in.ibm.com>
- *
- * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
- * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
- * Papers:
- * http://www.rdrop.com/users/paulmck/paper/rclockpdcsproof.pdf
- * http://lse.sourceforge.net/locking/rclock_OLS.2001.05.01c.sc.pdf (OLS2001)
- *
- * For detailed explanation of Read-Copy Update mechanism see -
- * http://lse.sourceforge.net/locking/rcupdate.html
- *
- */
-
-#ifndef __LINUX_RCUPDATE_H
-#define __LINUX_RCUPDATE_H
-
-#ifdef __KERNEL__
-
-#include <linux/config.h>
-#include <linux/cache.h>
-#include <linux/spinlock.h>
-#include <linux/threads.h>
-
-#ifdef CONFIG_SMP
-#error "SMP configurations not supported for RCU backport."
-#endif
-
-/**
- * struct rcu_head - callback structure for use with RCU
- * @next: next update requests in a list
- * @func: actual update function to call after the grace period.
- */
-struct rcu_head {
- struct rcu_head *next;
- void (*func)(struct rcu_head *head);
-};
-
-#define RCU_HEAD_INIT { }
-#define RCU_HEAD(head) struct rcu_head head = RCU_HEAD_INIT
-#define INIT_RCU_HEAD(ptr) do { } while (0)
-
-
-
-/**
- * rcu_read_lock - mark the beginning of an RCU read-side critical section.
- *
- * When synchronize_rcu() is invoked on one CPU while other CPUs
- * are within RCU read-side critical sections, then the
- * synchronize_rcu() is guaranteed to block until after all the other
- * CPUs exit their critical sections. Similarly, if call_rcu() is invoked
- * on one CPU while other CPUs are within RCU read-side critical
- * sections, invocation of the corresponding RCU callback is deferred
- * until after the all the other CPUs exit their critical sections.
- *
- * Note, however, that RCU callbacks are permitted to run concurrently
- * with RCU read-side critical sections. One way that this can happen
- * is via the following sequence of events: (1) CPU 0 enters an RCU
- * read-side critical section, (2) CPU 1 invokes call_rcu() to register
- * an RCU callback, (3) CPU 0 exits the RCU read-side critical section,
- * (4) CPU 2 enters a RCU read-side critical section, (5) the RCU
- * callback is invoked. This is legal, because the RCU read-side critical
- * section that was running concurrently with the call_rcu() (and which
- * therefore might be referencing something that the corresponding RCU
- * callback would free up) has completed before the corresponding
- * RCU callback is invoked.
- *
- * RCU read-side critical sections may be nested. Any deferred actions
- * will be deferred until the outermost RCU read-side critical section
- * completes.
- *
- * It is illegal to block while in an RCU read-side critical section.
- */
-#define rcu_read_lock() \
- do { } while(0)
-
-/**
- * rcu_read_unlock - marks the end of an RCU read-side critical section.
- *
- * See rcu_read_lock() for more information.
- */
-#define rcu_read_unlock() \
- do { } while(0)
-
-/*
- * So where is rcu_write_lock()? It does not exist, as there is no
- * way for writers to lock out RCU readers. This is a feature, not
- * a bug -- this property is what provides RCU's performance benefits.
- * Of course, writers must coordinate with each other. The normal
- * spinlock primitives work well for this, but any other technique may be
- * used as well. RCU does not care how the writers keep out of each
- * others' way, as long as they do so.
- */
-
-/**
- * rcu_read_lock_bh - mark the beginning of a softirq-only RCU critical section
- *
- * This is equivalent of rcu_read_lock(), but to be used when updates
- * are being done using call_rcu_bh(). Since call_rcu_bh() callbacks
- * consider completion of a softirq handler to be a quiescent state,
- * a process in RCU read-side critical section must be protected by
- * disabling softirqs. Read-side critical sections in interrupt context
- * can use just rcu_read_lock().
- *
- */
-#define rcu_read_lock_bh() \
- do { \
- local_bh_disable(); \
- } while(0)
-
-/*
- * rcu_read_unlock_bh - marks the end of a softirq-only RCU critical section
- *
- * See rcu_read_lock_bh() for more information.
- */
-#define rcu_read_unlock_bh() \
- do { \
- local_bh_enable(); \
- } while(0)
-
-/**
- * rcu_dereference - fetch an RCU-protected pointer in an
- * RCU read-side critical section. This pointer may later
- * be safely dereferenced.
- *
- * Inserts memory barriers on architectures that require them
- * (currently only the Alpha), and, more importantly, documents
- * exactly which pointers are protected by RCU.
- */
-
-#define rcu_dereference(p) ({ \
- typeof(p) _________p1 = p; \
- smp_read_barrier_depends(); \
- (_________p1); \
- })
-
-/**
- * rcu_assign_pointer - assign (publicize) a pointer to a newly
- * initialized structure that will be dereferenced by RCU read-side
- * critical sections. Returns the value assigned.
- *
- * Inserts memory barriers on architectures that require them
- * (pretty much all of them other than x86), and also prevents
- * the compiler from reordering the code that initializes the
- * structure after the pointer assignment. More importantly, this
- * call documents which pointers will be dereferenced by RCU read-side
- * code.
- */
-
-#define rcu_assign_pointer(p, v) ({ \
- smp_wmb(); \
- (p) = (v); \
- })
-
-/**
- * synchronize_sched - block until all CPUs have exited any non-preemptive
- * kernel code sequences.
- *
- * This means that all preempt_disable code sequences, including NMI and
- * hardware-interrupt handlers, in progress on entry will have completed
- * before this primitive returns. However, this does not guarantee that
- * softirq handlers will have completed, since in some kernels, these
- * handlers can run in process context, and can block.
- *
- * This primitive provides the guarantees made by the (now removed)
- * synchronize_kernel() API. In contrast, synchronize_rcu() only
- * guarantees that rcu_read_lock() sections will have completed.
- * In "classic RCU", these two guarantees happen to be one and
- * the same, but can differ in realtime RCU implementations.
- */
-#define synchronize_sched() synchronize_rcu()
-
-/* Exported interfaces */
-void synchronize_rcu(void);
-void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *head));
-
-static inline void call_rcu_bh(struct rcu_head *head,
- void (*func)(struct rcu_head *head))
-{
- synchronize_rcu();
- func(head);
-}
-void synchronize_idle(void);
-extern void rcu_barrier(void);
-
-#endif /* __KERNEL__ */
-#endif /* __LINUX_RCUPDATE_H */
+++ /dev/null
-#ifndef __LINUX_SCHED_WRAPPER_H
-#define __LINUX_SCHED_WRAPPER_H 1
-
-#include_next <linux/sched.h>
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21)
-
-#if CONFIG_SMP
-extern void set_cpus_allowed(struct task_struct *p, unsigned long new_mask);
-#else
-# define set_cpus_allowed(p, new_mask) do { } while (0)
-#endif
-
-#endif /* linux kernel < 2.4.21 */
-
-#endif
+++ /dev/null
-#ifndef __LINUX_SKBUFF_WRAPPER_H
-#define __LINUX_SKBUFF_WRAPPER_H 1
-
-#include_next <linux/skbuff.h>
-
-
-#define mac_header mac.raw
-#define network_header nh.raw
-
-/* Emulate Linux 2.6 behavior, in which kfree_skb silently ignores null pointer
- * arguments. */
-#define kfree_skb(skb) kfree_skb_maybe_null(skb)
-static inline void kfree_skb_maybe_null(struct sk_buff *skb)
-{
- if (likely(skb != NULL))
- (kfree_skb)(skb);
-}
-
-/* Note that CHECKSUM_PARTIAL is not implemented, but this allows us to at
- * least test against it: see update_csum() in forward.c. */
-#define CHECKSUM_PARTIAL 3
-#define CHECKSUM_COMPLETE CHECKSUM_HW
-
-static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
-{
- return skb->h.raw;
-}
-
-static inline void skb_reset_transport_header(struct sk_buff *skb)
-{
- skb->h.raw = skb->data;
-}
-
-static inline void skb_set_transport_header(struct sk_buff *skb,
- const int offset)
-{
- skb->h.raw = skb->data + offset;
-}
-
-static inline unsigned char *skb_network_header(const struct sk_buff *skb)
-{
- return skb->nh.raw;
-}
-
-static inline void skb_reset_network_header(struct sk_buff *skb)
-{
- skb->nh.raw = skb->data;
-}
-
-static inline void skb_set_network_header(struct sk_buff *skb, const int offset)
-{
- skb->nh.raw = skb->data + offset;
-}
-
-static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
-{
- return skb->mac.raw;
-}
-
-static inline int skb_mac_header_was_set(const struct sk_buff *skb)
-{
- return skb->mac.raw != NULL;
-}
-
-static inline void skb_reset_mac_header(struct sk_buff *skb)
-{
- skb->mac.raw = skb->data;
-}
-
-static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
-{
- skb->mac.raw = skb->data + offset;
-}
-static inline int skb_transport_offset(const struct sk_buff *skb)
-{
- return skb_transport_header(skb) - skb->data;
-}
-
-static inline u32 skb_network_header_len(const struct sk_buff *skb)
-{
- return skb->h.raw - skb->nh.raw;
-}
-
-static inline int skb_network_offset(const struct sk_buff *skb)
-{
- return skb_network_header(skb) - skb->data;
-}
-
-static inline unsigned char *skb_tail_pointer(const struct sk_buff *skb)
-{
- return skb->tail;
-}
-
-static inline void skb_reset_tail_pointer(struct sk_buff *skb)
-{
- skb->tail = skb->data;
-}
-
-static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
-{
- skb->tail = skb->data + offset;
-}
-
-/*
- * CPUs often take a performance hit when accessing unaligned memory
- * locations. The actual performance hit varies, it can be small if the
- * hardware handles it or large if we have to take an exception and fix it
- * in software.
- *
- * Since an ethernet header is 14 bytes network drivers often end up with
- * the IP header at an unaligned offset. The IP header can be aligned by
- * shifting the start of the packet by 2 bytes. Drivers should do this
- * with:
- *
- * skb_reserve(NET_IP_ALIGN);
- *
- * The downside to this alignment of the IP header is that the DMA is now
- * unaligned. On some architectures the cost of an unaligned DMA is high
- * and this cost outweighs the gains made by aligning the IP header.
- *
- * Since this trade off varies between architectures, we allow NET_IP_ALIGN
- * to be overridden.
- */
-#ifndef NET_IP_ALIGN
-#define NET_IP_ALIGN 2
-#endif
-
-static inline void skb_copy_to_linear_data(struct sk_buff *skb,
- const void *from,
- const unsigned int len)
-{
- memcpy(skb->data, from, len);
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_SLAB_WRAPPER_H
-#define __LINUX_SLAB_WRAPPER_H 1
-
-/* Kluge to let "struct kmem_cache" work in both 2.4 and 2.6. */
-#define kmem_cache_s kmem_cache
-
-#include_next <linux/slab.h>
-
-static inline void *kzalloc(size_t size, gfp_t flags)
-{
- void *p = kmalloc(size, flags);
- if (p)
- memset(p, 0, size);
- return p;
-}
-
-/* Mega-kluge to wrap 2.4 kmem_cache_create for compatibility with 2.6. */
-#ifdef kmem_cache_create
-#undef kmem_cache_create
-#define kmem_cache_create(name, size, align, flags, ctor) \
- compat_kmem_cache_create(name, size, align, flags, ctor)
-static inline struct kmem_cache *
-compat_kmem_cache_create(const char *name, size_t size,
- size_t align, unsigned long flags,
- void (*ctor)(void *, struct kmem_cache *,
- unsigned long))
-{
- return (_set_ver(kmem_cache_create))(name, size, align, flags, ctor,
- NULL);
-}
-#else
-#define kmem_cache_create(name, size, align, flags, ctor) \
- kmem_cache_create(name, size, align, flags, ctor, NULL)
-#endif /* kmem_cache_create */
-
-static inline void *kmem_cache_zalloc(struct kmem_cache *k, gfp_t flags)
-{
- void *p = kmem_cache_alloc(k, flags);
- if (p)
- memset(p, 0, kmem_cache_size(k));
- return p;
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_SOCKIOS_WRAPPER_H
-#define __LINUX_SOCKIOS_WRAPPER_H 1
-
-#include_next <linux/sockios.h>
-
-/* bridge calls */
-#define SIOCBRADDBR 0x89a0 /* create new bridge device */
-#define SIOCBRDELBR 0x89a1 /* remove bridge device */
-#define SIOCBRADDIF 0x89a2 /* add interface to bridge */
-#define SIOCBRDELIF 0x89a3 /* remove interface from bridge */
-
-#endif
+++ /dev/null
-#ifndef __LINUX_SPINLOCK_WRAPPER_H
-#define __LINUX_SPINLOCK_WRAPPER_H 1
-
-#include_next <linux/spinlock.h>
-
-#define DEFINE_SPINLOCK(x) spinlock_t x = SPIN_LOCK_UNLOCKED
-
-#endif /* linux/spinlock.h */
+++ /dev/null
-#ifndef __LINUX_STRING_WRAPPER_H
-#define __LINUX_STRING_WRAPPER_H 1
-
-#include_next <linux/string.h>
-
-#ifndef __HAVE_ARCH_STRCSPN
-size_t strcspn(const char *s, const char *reject);
-#endif
-
-size_t strlcpy(char *, const char *, size_t);
-
-#endif /* linux/string.h */
+++ /dev/null
-#ifndef __LINUX_TCP_WRAPPER_H
-#define __LINUX_TCP_WRAPPER_H 1
-
-#include_next <linux/tcp.h>
-
-#ifdef __KERNEL__
-#include <linux/skbuff.h>
-
-static inline struct tcphdr *tcp_hdr(const struct sk_buff *skb)
-{
- return (struct tcphdr *)skb_transport_header(skb);
-}
-
-static inline unsigned int tcp_hdrlen(const struct sk_buff *skb)
-{
- return tcp_hdr(skb)->doff * 4;
-}
-
-static inline unsigned int tcp_optlen(const struct sk_buff *skb)
-{
- return (tcp_hdr(skb)->doff - 5) * 4;
-}
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_TIME_WRAPPER_H
-#define __LINUX_TIME_WRAPPER_H 1
-
-#include_next <linux/time.h>
-
-/* Parameters used to convert the timespec values: */
-#define MSEC_PER_SEC 1000L
-#define USEC_PER_MSEC 1000L
-#define NSEC_PER_USEC 1000L
-#define NSEC_PER_MSEC 1000000L
-#define USEC_PER_SEC 1000000L
-#define NSEC_PER_SEC 1000000000L
-#define FSEC_PER_SEC 1000000000000000L
-
-#endif
+++ /dev/null
-#ifndef __LINUX_TIMER_WRAPPER_H
-#define __LINUX_TIMER_WRAPPER_H 1
-
-#include_next <linux/timer.h>
-#include <asm/param.h>
-#include <linux/smp.h>
-
-extern unsigned long volatile jiffies;
-
-static inline void setup_timer(struct timer_list * timer,
- void (*function)(unsigned long),
- unsigned long data)
-{
- timer->function = function;
- timer->data = data;
- init_timer(timer);
-}
-
-/**
- * __round_jiffies - function to round jiffies to a full second
- * @j: the time in (absolute) jiffies that should be rounded
- * @cpu: the processor number on which the timeout will happen
- *
- * __round_jiffies() rounds an absolute time in the future (in jiffies)
- * up or down to (approximately) full seconds. This is useful for timers
- * for which the exact time they fire does not matter too much, as long as
- * they fire approximately every X seconds.
- *
- * By rounding these timers to whole seconds, all such timers will fire
- * at the same time, rather than at various times spread out. The goal
- * of this is to have the CPU wake up less, which saves power.
- *
- * The exact rounding is skewed for each processor to avoid all
- * processors firing at the exact same time, which could lead
- * to lock contention or spurious cache line bouncing.
- *
- * The return value is the rounded version of the @j parameter.
- */
-static inline unsigned long __round_jiffies(unsigned long j, int cpu)
-{
- int rem;
- unsigned long original = j;
-
- /*
- * We don't want all cpus firing their timers at once hitting the
- * same lock or cachelines, so we skew each extra cpu with an extra
- * 3 jiffies. This 3 jiffies came originally from the mm/ code which
- * already did this.
- * The skew is done by adding 3*cpunr, then round, then subtract this
- * extra offset again.
- */
- j += cpu * 3;
-
- rem = j % HZ;
-
- /*
- * If the target jiffie is just after a whole second (which can happen
- * due to delays of the timer irq, long irq off times etc etc) then
- * we should round down to the whole second, not up. Use 1/4th second
- * as cutoff for this rounding as an extreme upper bound for this.
- */
- if (rem < HZ/4) /* round down */
- j = j - rem;
- else /* round up */
- j = j - rem + HZ;
-
- /* now that we have rounded, subtract the extra skew again */
- j -= cpu * 3;
-
- if (j <= jiffies) /* rounding ate our timeout entirely; */
- return original;
- return j;
-}
-
-
-/**
- * round_jiffies - function to round jiffies to a full second
- * @j: the time in (absolute) jiffies that should be rounded
- *
- * round_jiffies() rounds an absolute time in the future (in jiffies)
- * up or down to (approximately) full seconds. This is useful for timers
- * for which the exact time they fire does not matter too much, as long as
- * they fire approximately every X seconds.
- *
- * By rounding these timers to whole seconds, all such timers will fire
- * at the same time, rather than at various times spread out. The goal
- * of this is to have the CPU wake up less, which saves power.
- *
- * The return value is the rounded version of the @j parameter.
- */
-static inline unsigned long round_jiffies(unsigned long j)
-{
- return __round_jiffies(j, 0); // FIXME
-}
-
-#endif
+++ /dev/null
-#ifndef __LINUX_TYPES_WRAPPER_H
-#define __LINUX_TYPES_WRAPPER_H 1
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-#error These replacement header files are for use with Linux 2.4.x only.
-#endif
-
-#include_next <linux/types.h>
-
-/*
- * Below are truly Linux-specific types that should never collide with
- * any application/library that wants linux/types.h.
- */
-
-#ifdef __CHECKER__
-#define __bitwise__ __attribute__((bitwise))
-#else
-#define __bitwise__
-#endif
-#ifdef __CHECK_ENDIAN__
-#define __bitwise __bitwise__
-#else
-#define __bitwise
-#endif
-
-typedef __u16 __bitwise __le16;
-typedef __u16 __bitwise __be16;
-typedef __u32 __bitwise __le32;
-typedef __u32 __bitwise __be32;
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
-typedef __u64 __bitwise __le64;
-typedef __u64 __bitwise __be64;
-#endif
-typedef __u16 __bitwise __sum16;
-typedef __u32 __bitwise __wsum;
-
-#ifdef __KERNEL__
-typedef unsigned __bitwise__ gfp_t;
-
-#ifdef CONFIG_RESOURCES_64BIT
-typedef u64 resource_size_t;
-#else
-typedef u32 resource_size_t;
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif
+++ /dev/null
-#ifndef __LINUX_UDP_WRAPPER_H
-#define __LINUX_UDP_WRAPPER_H 1
-
-#include_next <linux/udp.h>
-
-#ifdef __KERNEL__
-#include <linux/skbuff.h>
-
-static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
-{
- return (struct udphdr *)skb_transport_header(skb);
-}
-#endif
-
-#endif
+++ /dev/null
-#ifndef __LINUX_WORKQUEUE_H
-#define __LINUX_WORKQUEUE_H 1
-
-#include <linux/tqueue.h>
-
-#define work_struct tq_struct
-
-#define INIT_WORK(_work, _routine) \
- INIT_TQUEUE((_work), ((void *)_routine), (_work))
-
-#define PREPARE_WORK(_work, _routine) \
- PREPARE_TQUEUE((_work), ((void *)_routine), (_work))
-
-#define schedule_work(_work) schedule_task(_work)
-
-#define flush_scheduled_work() flush_scheduled_tasks()
-
-/* There is no equivalent to cancel_work_sync() in 2.4, so just flush all
- * pending tasks. */
-#define cancel_work_sync(_work) flush_scheduled_tasks()
-
-#endif
+++ /dev/null
-#ifndef __NET_CHECKSUM_WRAPPER_H
-#define __NET_CHECKSUM_WRAPPER_H 1
-
-#include_next <net/checksum.h>
-
-static inline __wsum csum_unfold(__sum16 n)
-{
- return (__force __wsum)n;
-}
-
-#endif
+++ /dev/null
-#ifndef __NET_GENERIC_NETLINK_H
-#define __NET_GENERIC_NETLINK_H
-
-#include <linux/genetlink.h>
-#include <net/netlink.h>
-
-/**
- * struct genl_multicast_group - generic netlink multicast group
- * @name: name of the multicast group, names are per-family
- * @id: multicast group ID, assigned by the core, to use with
- * genlmsg_multicast().
- * @list: list entry for linking
- * @family: pointer to family, need not be set before registering
- */
-struct genl_multicast_group
-{
- struct genl_family *family; /* private */
- struct list_head list; /* private */
- char name[GENL_NAMSIZ];
- u32 id;
-};
-
-/**
- * struct genl_family - generic netlink family
- * @id: protocol family idenfitier
- * @hdrsize: length of user specific header in bytes
- * @name: name of family
- * @version: protocol version
- * @maxattr: maximum number of attributes supported
- * @attrbuf: buffer to store parsed attributes
- * @ops_list: list of all assigned operations
- * @family_list: family list
- * @mcast_groups: multicast groups list
- */
-struct genl_family
-{
- unsigned int id;
- unsigned int hdrsize;
- char name[GENL_NAMSIZ];
- unsigned int version;
- unsigned int maxattr;
- struct nlattr ** attrbuf; /* private */
- struct list_head ops_list; /* private */
- struct list_head family_list; /* private */
- struct list_head mcast_groups; /* private */
-};
-
-/**
- * struct genl_info - receiving information
- * @snd_seq: sending sequence number
- * @snd_pid: netlink pid of sender
- * @nlhdr: netlink message header
- * @genlhdr: generic netlink message header
- * @userhdr: user specific header
- * @attrs: netlink attributes
- */
-struct genl_info
-{
- u32 snd_seq;
- u32 snd_pid;
- struct nlmsghdr * nlhdr;
- struct genlmsghdr * genlhdr;
- void * userhdr;
- struct nlattr ** attrs;
-};
-
-/**
- * struct genl_ops - generic netlink operations
- * @cmd: command identifier
- * @flags: flags
- * @policy: attribute validation policy
- * @doit: standard command callback
- * @dumpit: callback for dumpers
- * @done: completion callback for dumps
- * @ops_list: operations list
- */
-struct genl_ops
-{
- u8 cmd;
- unsigned int flags;
- const struct nla_policy *policy;
- int (*doit)(struct sk_buff *skb,
- struct genl_info *info);
- int (*dumpit)(struct sk_buff *skb,
- struct netlink_callback *cb);
- int (*done)(struct netlink_callback *cb);
- struct list_head ops_list;
-};
-
-extern int genl_register_family(struct genl_family *family);
-extern int genl_unregister_family(struct genl_family *family);
-extern int genl_register_ops(struct genl_family *, struct genl_ops *ops);
-extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops);
-extern int genl_register_mc_group(struct genl_family *family,
- struct genl_multicast_group *grp);
-extern void genl_unregister_mc_group(struct genl_family *family,
- struct genl_multicast_group *grp);
-
-extern struct sock *genl_sock;
-
-/**
- * genlmsg_put - Add generic netlink header to netlink message
- * @skb: socket buffer holding the message
- * @pid: netlink pid the message is addressed to
- * @seq: sequence number (usually the one of the sender)
- * @family: generic netlink family
- * @flags netlink message flags
- * @cmd: generic netlink command
- *
- * Returns pointer to user specific header
- */
-static inline void *genlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
- struct genl_family *family, int flags, u8 cmd)
-{
- struct nlmsghdr *nlh;
- struct genlmsghdr *hdr;
-
- nlh = nlmsg_put(skb, pid, seq, family->id, GENL_HDRLEN +
- family->hdrsize, flags);
- if (nlh == NULL)
- return NULL;
-
- hdr = nlmsg_data(nlh);
- hdr->cmd = cmd;
- hdr->version = family->version;
- hdr->reserved = 0;
-
- return (char *) hdr + GENL_HDRLEN;
-}
-
-/**
- * genlmsg_put_reply - Add generic netlink header to a reply message
- * @skb: socket buffer holding the message
- * @info: receiver info
- * @family: generic netlink family
- * @flags: netlink message flags
- * @cmd: generic netlink command
- *
- * Returns pointer to user specific header
- */
-static inline void *genlmsg_put_reply(struct sk_buff *skb,
- struct genl_info *info,
- struct genl_family *family,
- int flags, u8 cmd)
-{
- return genlmsg_put(skb, info->snd_pid, info->snd_seq, family,
- flags, cmd);
-}
-
-/**
- * genlmsg_end - Finalize a generic netlink message
- * @skb: socket buffer the message is stored in
- * @hdr: user specific header
- */
-static inline int genlmsg_end(struct sk_buff *skb, void *hdr)
-{
- return nlmsg_end(skb, hdr - GENL_HDRLEN - NLMSG_HDRLEN);
-}
-
-/**
- * genlmsg_cancel - Cancel construction of a generic netlink message
- * @skb: socket buffer the message is stored in
- * @hdr: generic netlink message header
- */
-static inline int genlmsg_cancel(struct sk_buff *skb, void *hdr)
-{
- return nlmsg_cancel(skb, hdr - GENL_HDRLEN - NLMSG_HDRLEN);
-}
-
-/**
- * genlmsg_multicast - multicast a netlink message
- * @skb: netlink message as socket buffer
- * @pid: own netlink pid to avoid sending to yourself
- * @group: multicast group id
- * @flags: allocation flags
- */
-static inline int genlmsg_multicast(struct sk_buff *skb, u32 pid,
- unsigned int group, gfp_t flags)
-{
- return nlmsg_multicast(genl_sock, skb, pid, group, flags);
-}
-
-/**
- * genlmsg_unicast - unicast a netlink message
- * @skb: netlink message as socket buffer
- * @pid: netlink pid of the destination socket
- */
-static inline int genlmsg_unicast(struct sk_buff *skb, u32 pid)
-{
- return nlmsg_unicast(genl_sock, skb, pid);
-}
-
-/**
- * genlmsg_reply - reply to a request
- * @skb: netlink message to be sent back
- * @info: receiver information
- */
-static inline int genlmsg_reply(struct sk_buff *skb, struct genl_info *info)
-{
- return genlmsg_unicast(skb, info->snd_pid);
-}
-
-/**
- * gennlmsg_data - head of message payload
- * @gnlh: genetlink messsage header
- */
-static inline void *genlmsg_data(const struct genlmsghdr *gnlh)
-{
- return ((unsigned char *) gnlh + GENL_HDRLEN);
-}
-
-/**
- * genlmsg_len - length of message payload
- * @gnlh: genetlink message header
- */
-static inline int genlmsg_len(const struct genlmsghdr *gnlh)
-{
- struct nlmsghdr *nlh = (struct nlmsghdr *)((unsigned char *)gnlh -
- NLMSG_HDRLEN);
- return (nlh->nlmsg_len - GENL_HDRLEN - NLMSG_HDRLEN);
-}
-
-/**
- * genlmsg_msg_size - length of genetlink message not including padding
- * @payload: length of message payload
- */
-static inline int genlmsg_msg_size(int payload)
-{
- return GENL_HDRLEN + payload;
-}
-
-/**
- * genlmsg_total_size - length of genetlink message including padding
- * @payload: length of message payload
- */
-static inline int genlmsg_total_size(int payload)
-{
- return NLMSG_ALIGN(genlmsg_msg_size(payload));
-}
-
-/**
- * genlmsg_new - Allocate a new generic netlink message
- * @payload: size of the message payload
- * @flags: the type of memory to allocate.
- */
-static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
-{
- return nlmsg_new(genlmsg_total_size(payload), flags);
-}
-
-
-#endif /* __NET_GENERIC_NETLINK_H */
+++ /dev/null
-#ifndef __NET_LLC_PDU_H
-#define __NET_LLC_PDU_H 1
-
-/* Un-numbered PDU format (3 bytes in length) */
-struct llc_pdu_un {
- u8 dsap;
- u8 ssap;
- u8 ctrl_1;
-};
-
-#endif
+++ /dev/null
-#ifndef __NET_NETLINK_H
-#define __NET_NETLINK_H
-
-#include <linux/types.h>
-#include <linux/netlink.h>
-#include <linux/jiffies.h>
-
-/* ========================================================================
- * Netlink Messages and Attributes Interface (As Seen On TV)
- * ------------------------------------------------------------------------
- * Messages Interface
- * ------------------------------------------------------------------------
- *
- * Message Format:
- * <--- nlmsg_total_size(payload) --->
- * <-- nlmsg_msg_size(payload) ->
- * +----------+- - -+-------------+- - -+-------- - -
- * | nlmsghdr | Pad | Payload | Pad | nlmsghdr
- * +----------+- - -+-------------+- - -+-------- - -
- * nlmsg_data(nlh)---^ ^
- * nlmsg_next(nlh)-----------------------+
- *
- * Payload Format:
- * <---------------------- nlmsg_len(nlh) --------------------->
- * <------ hdrlen ------> <- nlmsg_attrlen(nlh, hdrlen) ->
- * +----------------------+- - -+--------------------------------+
- * | Family Header | Pad | Attributes |
- * +----------------------+- - -+--------------------------------+
- * nlmsg_attrdata(nlh, hdrlen)---^
- *
- * Data Structures:
- * struct nlmsghdr netlink message header
- *
- * Message Construction:
- * nlmsg_new() create a new netlink message
- * nlmsg_put() add a netlink message to an skb
- * nlmsg_put_answer() callback based nlmsg_put()
- * nlmsg_end() finanlize netlink message
- * nlmsg_get_pos() return current position in message
- * nlmsg_trim() trim part of message
- * nlmsg_cancel() cancel message construction
- * nlmsg_free() free a netlink message
- *
- * Message Sending:
- * nlmsg_multicast() multicast message to several groups
- * nlmsg_unicast() unicast a message to a single socket
- * nlmsg_notify() send notification message
- *
- * Message Length Calculations:
- * nlmsg_msg_size(payload) length of message w/o padding
- * nlmsg_total_size(payload) length of message w/ padding
- * nlmsg_padlen(payload) length of padding at tail
- *
- * Message Payload Access:
- * nlmsg_data(nlh) head of message payload
- * nlmsg_len(nlh) length of message payload
- * nlmsg_attrdata(nlh, hdrlen) head of attributes data
- * nlmsg_attrlen(nlh, hdrlen) length of attributes data
- *
- * Message Parsing:
- * nlmsg_ok(nlh, remaining) does nlh fit into remaining bytes?
- * nlmsg_next(nlh, remaining) get next netlink message
- * nlmsg_parse() parse attributes of a message
- * nlmsg_find_attr() find an attribute in a message
- * nlmsg_for_each_msg() loop over all messages
- * nlmsg_validate() validate netlink message incl. attrs
- * nlmsg_for_each_attr() loop over all attributes
- *
- * Misc:
- * nlmsg_report() report back to application?
- *
- * ------------------------------------------------------------------------
- * Attributes Interface
- * ------------------------------------------------------------------------
- *
- * Attribute Format:
- * <------- nla_total_size(payload) ------->
- * <---- nla_attr_size(payload) ----->
- * +----------+- - -+- - - - - - - - - +- - -+-------- - -
- * | Header | Pad | Payload | Pad | Header
- * +----------+- - -+- - - - - - - - - +- - -+-------- - -
- * <- nla_len(nla) -> ^
- * nla_data(nla)----^ |
- * nla_next(nla)-----------------------------'
- *
- * Data Structures:
- * struct nlattr netlink attribtue header
- *
- * Attribute Construction:
- * nla_reserve(skb, type, len) reserve room for an attribute
- * nla_reserve_nohdr(skb, len) reserve room for an attribute w/o hdr
- * nla_put(skb, type, len, data) add attribute to skb
- * nla_put_nohdr(skb, len, data) add attribute w/o hdr
- *
- * Attribute Construction for Basic Types:
- * nla_put_u8(skb, type, value) add u8 attribute to skb
- * nla_put_u16(skb, type, value) add u16 attribute to skb
- * nla_put_u32(skb, type, value) add u32 attribute to skb
- * nla_put_u64(skb, type, value) add u64 attribute to skb
- * nla_put_string(skb, type, str) add string attribute to skb
- * nla_put_flag(skb, type) add flag attribute to skb
- * nla_put_msecs(skb, type, jiffies) add msecs attribute to skb
- *
- * Exceptions Based Attribute Construction:
- * NLA_PUT(skb, type, len, data) add attribute to skb
- * NLA_PUT_U8(skb, type, value) add u8 attribute to skb
- * NLA_PUT_U16(skb, type, value) add u16 attribute to skb
- * NLA_PUT_U32(skb, type, value) add u32 attribute to skb
- * NLA_PUT_U64(skb, type, value) add u64 attribute to skb
- * NLA_PUT_STRING(skb, type, str) add string attribute to skb
- * NLA_PUT_FLAG(skb, type) add flag attribute to skb
- * NLA_PUT_MSECS(skb, type, jiffies) add msecs attribute to skb
- *
- * The meaning of these functions is equal to their lower case
- * variants but they jump to the label nla_put_failure in case
- * of a failure.
- *
- * Nested Attributes Construction:
- * nla_nest_start(skb, type) start a nested attribute
- * nla_nest_end(skb, nla) finalize a nested attribute
- * nla_nest_cancel(skb, nla) cancel nested attribute construction
- *
- * Attribute Length Calculations:
- * nla_attr_size(payload) length of attribute w/o padding
- * nla_total_size(payload) length of attribute w/ padding
- * nla_padlen(payload) length of padding
- *
- * Attribute Payload Access:
- * nla_data(nla) head of attribute payload
- * nla_len(nla) length of attribute payload
- *
- * Attribute Payload Access for Basic Types:
- * nla_get_u8(nla) get payload for a u8 attribute
- * nla_get_u16(nla) get payload for a u16 attribute
- * nla_get_u32(nla) get payload for a u32 attribute
- * nla_get_u64(nla) get payload for a u64 attribute
- * nla_get_flag(nla) return 1 if flag is true
- * nla_get_msecs(nla) get payload for a msecs attribute
- *
- * Attribute Misc:
- * nla_memcpy(dest, nla, count) copy attribute into memory
- * nla_memcmp(nla, data, size) compare attribute with memory area
- * nla_strlcpy(dst, nla, size) copy attribute to a sized string
- * nla_strcmp(nla, str) compare attribute with string
- *
- * Attribute Parsing:
- * nla_ok(nla, remaining) does nla fit into remaining bytes?
- * nla_next(nla, remaining) get next netlink attribute
- * nla_validate() validate a stream of attributes
- * nla_validate_nested() validate a stream of nested attributes
- * nla_find() find attribute in stream of attributes
- * nla_find_nested() find attribute in nested attributes
- * nla_parse() parse and validate stream of attrs
- * nla_parse_nested() parse nested attribuets
- * nla_for_each_attr() loop over all attributes
- * nla_for_each_nested() loop over the nested attributes
- *=========================================================================
- */
-
- /**
- * Standard attribute types to specify validation policy
- */
-enum {
- NLA_UNSPEC,
- NLA_U8,
- NLA_U16,
- NLA_U32,
- NLA_U64,
- NLA_STRING,
- NLA_FLAG,
- NLA_MSECS,
- NLA_NESTED,
- NLA_NESTED_COMPAT,
- NLA_NUL_STRING,
- NLA_BINARY,
- __NLA_TYPE_MAX,
-};
-
-#define NLA_TYPE_MAX (__NLA_TYPE_MAX - 1)
-
-/**
- * struct nla_policy - attribute validation policy
- * @type: Type of attribute or NLA_UNSPEC
- * @len: Type specific length of payload
- *
- * Policies are defined as arrays of this struct, the array must be
- * accessible by attribute type up to the highest identifier to be expected.
- *
- * Meaning of `len' field:
- * NLA_STRING Maximum length of string
- * NLA_NUL_STRING Maximum length of string (excluding NUL)
- * NLA_FLAG Unused
- * NLA_BINARY Maximum length of attribute payload
- * All other Exact length of attribute payload
- *
- * Example:
- * static struct nla_policy my_policy[ATTR_MAX+1] __read_mostly = {
- * [ATTR_FOO] = { .type = NLA_U16 },
- * [ATTR_BAR] = { .type = NLA_STRING, .len = BARSIZ },
- * [ATTR_BAZ] = { .len = sizeof(struct mystruct) },
- * };
- */
-struct nla_policy {
- u16 type;
- u16 len;
-};
-
-/**
- * struct nl_info - netlink source information
- * @nlh: Netlink message header of original request
- * @pid: Netlink PID of requesting application
- */
-struct nl_info {
- struct nlmsghdr *nlh;
- u32 pid;
-};
-
-extern void netlink_run_queue(struct sock *sk, unsigned int *qlen,
- int (*cb)(struct sk_buff *,
- struct nlmsghdr *));
-extern int nlmsg_notify(struct sock *sk, struct sk_buff *skb,
- u32 pid, unsigned int group, int report,
- gfp_t flags);
-
-extern int nla_validate(struct nlattr *head, int len, int maxtype,
- const struct nla_policy *policy);
-extern int nla_parse(struct nlattr *tb[], int maxtype,
- struct nlattr *head, int len,
- const struct nla_policy *policy);
-extern struct nlattr * nla_find(struct nlattr *head, int len, int attrtype);
-extern size_t nla_strlcpy(char *dst, const struct nlattr *nla,
- size_t dstsize);
-extern int nla_memcpy(void *dest, struct nlattr *src, int count);
-extern int nla_memcmp(const struct nlattr *nla, const void *data,
- size_t size);
-extern int nla_strcmp(const struct nlattr *nla, const char *str);
-extern struct nlattr * __nla_reserve(struct sk_buff *skb, int attrtype,
- int attrlen);
-extern void * __nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
-extern struct nlattr * nla_reserve(struct sk_buff *skb, int attrtype,
- int attrlen);
-extern void * nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
-extern void __nla_put(struct sk_buff *skb, int attrtype,
- int attrlen, const void *data);
-extern void __nla_put_nohdr(struct sk_buff *skb, int attrlen,
- const void *data);
-extern int nla_put(struct sk_buff *skb, int attrtype,
- int attrlen, const void *data);
-extern int nla_put_nohdr(struct sk_buff *skb, int attrlen,
- const void *data);
-
-/**************************************************************************
- * Netlink Messages
- **************************************************************************/
-
-/**
- * nlmsg_msg_size - length of netlink message not including padding
- * @payload: length of message payload
- */
-static inline int nlmsg_msg_size(int payload)
-{
- return NLMSG_HDRLEN + payload;
-}
-
-/**
- * nlmsg_total_size - length of netlink message including padding
- * @payload: length of message payload
- */
-static inline int nlmsg_total_size(int payload)
-{
- return NLMSG_ALIGN(nlmsg_msg_size(payload));
-}
-
-/**
- * nlmsg_padlen - length of padding at the message's tail
- * @payload: length of message payload
- */
-static inline int nlmsg_padlen(int payload)
-{
- return nlmsg_total_size(payload) - nlmsg_msg_size(payload);
-}
-
-/**
- * nlmsg_data - head of message payload
- * @nlh: netlink messsage header
- */
-static inline void *nlmsg_data(const struct nlmsghdr *nlh)
-{
- return (unsigned char *) nlh + NLMSG_HDRLEN;
-}
-
-/**
- * nlmsg_len - length of message payload
- * @nlh: netlink message header
- */
-static inline int nlmsg_len(const struct nlmsghdr *nlh)
-{
- return nlh->nlmsg_len - NLMSG_HDRLEN;
-}
-
-/**
- * nlmsg_attrdata - head of attributes data
- * @nlh: netlink message header
- * @hdrlen: length of family specific header
- */
-static inline struct nlattr *nlmsg_attrdata(const struct nlmsghdr *nlh,
- int hdrlen)
-{
- unsigned char *data = nlmsg_data(nlh);
- return (struct nlattr *) (data + NLMSG_ALIGN(hdrlen));
-}
-
-/**
- * nlmsg_attrlen - length of attributes data
- * @nlh: netlink message header
- * @hdrlen: length of family specific header
- */
-static inline int nlmsg_attrlen(const struct nlmsghdr *nlh, int hdrlen)
-{
- return nlmsg_len(nlh) - NLMSG_ALIGN(hdrlen);
-}
-
-/**
- * nlmsg_ok - check if the netlink message fits into the remaining bytes
- * @nlh: netlink message header
- * @remaining: number of bytes remaining in message stream
- */
-static inline int nlmsg_ok(const struct nlmsghdr *nlh, int remaining)
-{
- return (remaining >= sizeof(struct nlmsghdr) &&
- nlh->nlmsg_len >= sizeof(struct nlmsghdr) &&
- nlh->nlmsg_len <= remaining);
-}
-
-/**
- * nlmsg_next - next netlink message in message stream
- * @nlh: netlink message header
- * @remaining: number of bytes remaining in message stream
- *
- * Returns the next netlink message in the message stream and
- * decrements remaining by the size of the current message.
- */
-static inline struct nlmsghdr *nlmsg_next(struct nlmsghdr *nlh, int *remaining)
-{
- int totlen = NLMSG_ALIGN(nlh->nlmsg_len);
-
- *remaining -= totlen;
-
- return (struct nlmsghdr *) ((unsigned char *) nlh + totlen);
-}
-
-/**
- * nlmsg_parse - parse attributes of a netlink message
- * @nlh: netlink message header
- * @hdrlen: length of family specific header
- * @tb: destination array with maxtype+1 elements
- * @maxtype: maximum attribute type to be expected
- * @policy: validation policy
- *
- * See nla_parse()
- */
-static inline int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen,
- struct nlattr *tb[], int maxtype,
- const struct nla_policy *policy)
-{
- if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
- return -EINVAL;
-
- return nla_parse(tb, maxtype, nlmsg_attrdata(nlh, hdrlen),
- nlmsg_attrlen(nlh, hdrlen), policy);
-}
-
-/**
- * nlmsg_find_attr - find a specific attribute in a netlink message
- * @nlh: netlink message header
- * @hdrlen: length of familiy specific header
- * @attrtype: type of attribute to look for
- *
- * Returns the first attribute which matches the specified type.
- */
-static inline struct nlattr *nlmsg_find_attr(struct nlmsghdr *nlh,
- int hdrlen, int attrtype)
-{
- return nla_find(nlmsg_attrdata(nlh, hdrlen),
- nlmsg_attrlen(nlh, hdrlen), attrtype);
-}
-
-/**
- * nlmsg_validate - validate a netlink message including attributes
- * @nlh: netlinket message header
- * @hdrlen: length of familiy specific header
- * @maxtype: maximum attribute type to be expected
- * @policy: validation policy
- */
-static inline int nlmsg_validate(struct nlmsghdr *nlh, int hdrlen, int maxtype,
- const struct nla_policy *policy)
-{
- if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
- return -EINVAL;
-
- return nla_validate(nlmsg_attrdata(nlh, hdrlen),
- nlmsg_attrlen(nlh, hdrlen), maxtype, policy);
-}
-
-/**
- * nlmsg_report - need to report back to application?
- * @nlh: netlink message header
- *
- * Returns 1 if a report back to the application is requested.
- */
-static inline int nlmsg_report(struct nlmsghdr *nlh)
-{
- return !!(nlh->nlmsg_flags & NLM_F_ECHO);
-}
-
-/**
- * nlmsg_for_each_attr - iterate over a stream of attributes
- * @pos: loop counter, set to current attribute
- * @nlh: netlink message header
- * @hdrlen: length of familiy specific header
- * @rem: initialized to len, holds bytes currently remaining in stream
- */
-#define nlmsg_for_each_attr(pos, nlh, hdrlen, rem) \
- nla_for_each_attr(pos, nlmsg_attrdata(nlh, hdrlen), \
- nlmsg_attrlen(nlh, hdrlen), rem)
-
-#if 0
-/* FIXME: Enable once all users have been converted */
-
-/**
- * __nlmsg_put - Add a new netlink message to an skb
- * @skb: socket buffer to store message in
- * @pid: netlink process id
- * @seq: sequence number of message
- * @type: message type
- * @payload: length of message payload
- * @flags: message flags
- *
- * The caller is responsible to ensure that the skb provides enough
- * tailroom for both the netlink header and payload.
- */
-static inline struct nlmsghdr *__nlmsg_put(struct sk_buff *skb, u32 pid,
- u32 seq, int type, int payload,
- int flags)
-{
- struct nlmsghdr *nlh;
-
- nlh = (struct nlmsghdr *) skb_put(skb, nlmsg_total_size(payload));
- nlh->nlmsg_type = type;
- nlh->nlmsg_len = nlmsg_msg_size(payload);
- nlh->nlmsg_flags = flags;
- nlh->nlmsg_pid = pid;
- nlh->nlmsg_seq = seq;
-
- memset((unsigned char *) nlmsg_data(nlh) + payload, 0,
- nlmsg_padlen(payload));
-
- return nlh;
-}
-#endif
-
-/**
- * nlmsg_put - Add a new netlink message to an skb
- * @skb: socket buffer to store message in
- * @pid: netlink process id
- * @seq: sequence number of message
- * @type: message type
- * @payload: length of message payload
- * @flags: message flags
- *
- * Returns NULL if the tailroom of the skb is insufficient to store
- * the message header and payload.
- */
-static inline struct nlmsghdr *nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
- int type, int payload, int flags)
-{
- if (unlikely(skb_tailroom(skb) < nlmsg_total_size(payload)))
- return NULL;
-
- return __nlmsg_put(skb, pid, seq, type, payload, flags);
-}
-
-/**
- * nlmsg_put_answer - Add a new callback based netlink message to an skb
- * @skb: socket buffer to store message in
- * @cb: netlink callback
- * @type: message type
- * @payload: length of message payload
- * @flags: message flags
- *
- * Returns NULL if the tailroom of the skb is insufficient to store
- * the message header and payload.
- */
-static inline struct nlmsghdr *nlmsg_put_answer(struct sk_buff *skb,
- struct netlink_callback *cb,
- int type, int payload,
- int flags)
-{
- return nlmsg_put(skb, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
- type, payload, flags);
-}
-
-/**
- * nlmsg_new - Allocate a new netlink message
- * @payload: size of the message payload
- * @flags: the type of memory to allocate.
- *
- * Use NLMSG_DEFAULT_SIZE if the size of the payload isn't known
- * and a good default is needed.
- */
-static inline struct sk_buff *nlmsg_new(size_t payload, gfp_t flags)
-{
- return alloc_skb(nlmsg_total_size(payload), flags);
-}
-
-/**
- * nlmsg_end - Finalize a netlink message
- * @skb: socket buffer the message is stored in
- * @nlh: netlink message header
- *
- * Corrects the netlink message header to include the appeneded
- * attributes. Only necessary if attributes have been added to
- * the message.
- *
- * Returns the total data length of the skb.
- */
-static inline int nlmsg_end(struct sk_buff *skb, struct nlmsghdr *nlh)
-{
- nlh->nlmsg_len = skb_tail_pointer(skb) - (unsigned char *)nlh;
-
- return skb->len;
-}
-
-/**
- * nlmsg_get_pos - return current position in netlink message
- * @skb: socket buffer the message is stored in
- *
- * Returns a pointer to the current tail of the message.
- */
-static inline void *nlmsg_get_pos(struct sk_buff *skb)
-{
- return skb_tail_pointer(skb);
-}
-
-/**
- * nlmsg_trim - Trim message to a mark
- * @skb: socket buffer the message is stored in
- * @mark: mark to trim to
- *
- * Trims the message to the provided mark. Returns -1.
- */
-static inline int nlmsg_trim(struct sk_buff *skb, const void *mark)
-{
- if (mark)
- skb_trim(skb, (unsigned char *) mark - skb->data);
-
- return -1;
-}
-
-/**
- * nlmsg_cancel - Cancel construction of a netlink message
- * @skb: socket buffer the message is stored in
- * @nlh: netlink message header
- *
- * Removes the complete netlink message including all
- * attributes from the socket buffer again. Returns -1.
- */
-static inline int nlmsg_cancel(struct sk_buff *skb, struct nlmsghdr *nlh)
-{
- return nlmsg_trim(skb, nlh);
-}
-
-/**
- * nlmsg_free - free a netlink message
- * @skb: socket buffer of netlink message
- */
-static inline void nlmsg_free(struct sk_buff *skb)
-{
- kfree_skb(skb);
-}
-
-/**
- * nlmsg_multicast - multicast a netlink message
- * @sk: netlink socket to spread messages to
- * @skb: netlink message as socket buffer
- * @pid: own netlink pid to avoid sending to yourself
- * @group: multicast group id (*not* bit-mask)
- * @flags: allocation flags
- */
-static inline int nlmsg_multicast(struct sock *sk, struct sk_buff *skb,
- u32 pid, unsigned int group, gfp_t flags)
-{
- NETLINK_CB(skb).dst_groups = 1UL << (group - 1);
- netlink_broadcast(sk, skb, pid, 1UL << (group - 1), flags);
- return 0;
-}
-
-/**
- * nlmsg_unicast - unicast a netlink message
- * @sk: netlink socket to spread message to
- * @skb: netlink message as socket buffer
- * @pid: netlink pid of the destination socket
- */
-static inline int nlmsg_unicast(struct sock *sk, struct sk_buff *skb, u32 pid)
-{
- int err;
-
- err = netlink_unicast(sk, skb, pid, MSG_DONTWAIT);
- if (err > 0)
- err = 0;
-
- return err;
-}
-
-/**
- * nlmsg_for_each_msg - iterate over a stream of messages
- * @pos: loop counter, set to current message
- * @head: head of message stream
- * @len: length of message stream
- * @rem: initialized to len, holds bytes currently remaining in stream
- */
-#define nlmsg_for_each_msg(pos, head, len, rem) \
- for (pos = head, rem = len; \
- nlmsg_ok(pos, rem); \
- pos = nlmsg_next(pos, &(rem)))
-
-/**************************************************************************
- * Netlink Attributes
- **************************************************************************/
-
-/**
- * nla_attr_size - length of attribute not including padding
- * @payload: length of payload
- */
-static inline int nla_attr_size(int payload)
-{
- return NLA_HDRLEN + payload;
-}
-
-/**
- * nla_total_size - total length of attribute including padding
- * @payload: length of payload
- */
-static inline int nla_total_size(int payload)
-{
- return NLA_ALIGN(nla_attr_size(payload));
-}
-
-/**
- * nla_padlen - length of padding at the tail of attribute
- * @payload: length of payload
- */
-static inline int nla_padlen(int payload)
-{
- return nla_total_size(payload) - nla_attr_size(payload);
-}
-
-/**
- * nla_data - head of payload
- * @nla: netlink attribute
- */
-static inline void *nla_data(const struct nlattr *nla)
-{
- return (char *) nla + NLA_HDRLEN;
-}
-
-/**
- * nla_len - length of payload
- * @nla: netlink attribute
- */
-static inline int nla_len(const struct nlattr *nla)
-{
- return nla->nla_len - NLA_HDRLEN;
-}
-
-/**
- * nla_ok - check if the netlink attribute fits into the remaining bytes
- * @nla: netlink attribute
- * @remaining: number of bytes remaining in attribute stream
- */
-static inline int nla_ok(const struct nlattr *nla, int remaining)
-{
- return remaining >= sizeof(*nla) &&
- nla->nla_len >= sizeof(*nla) &&
- nla->nla_len <= remaining;
-}
-
-/**
- * nla_next - next netlink attribte in attribute stream
- * @nla: netlink attribute
- * @remaining: number of bytes remaining in attribute stream
- *
- * Returns the next netlink attribute in the attribute stream and
- * decrements remaining by the size of the current attribute.
- */
-static inline struct nlattr *nla_next(const struct nlattr *nla, int *remaining)
-{
- int totlen = NLA_ALIGN(nla->nla_len);
-
- *remaining -= totlen;
- return (struct nlattr *) ((char *) nla + totlen);
-}
-
-/**
- * nla_find_nested - find attribute in a set of nested attributes
- * @nla: attribute containing the nested attributes
- * @attrtype: type of attribute to look for
- *
- * Returns the first attribute which matches the specified type.
- */
-static inline struct nlattr *nla_find_nested(struct nlattr *nla, int attrtype)
-{
- return nla_find(nla_data(nla), nla_len(nla), attrtype);
-}
-
-/**
- * nla_parse_nested - parse nested attributes
- * @tb: destination array with maxtype+1 elements
- * @maxtype: maximum attribute type to be expected
- * @nla: attribute containing the nested attributes
- * @policy: validation policy
- *
- * See nla_parse()
- */
-static inline int nla_parse_nested(struct nlattr *tb[], int maxtype,
- struct nlattr *nla,
- const struct nla_policy *policy)
-{
- return nla_parse(tb, maxtype, nla_data(nla), nla_len(nla), policy);
-}
-/**
- * nla_put_u8 - Add a u16 netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @value: numeric value
- */
-static inline int nla_put_u8(struct sk_buff *skb, int attrtype, u8 value)
-{
- return nla_put(skb, attrtype, sizeof(u8), &value);
-}
-
-/**
- * nla_put_u16 - Add a u16 netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @value: numeric value
- */
-static inline int nla_put_u16(struct sk_buff *skb, int attrtype, u16 value)
-{
- return nla_put(skb, attrtype, sizeof(u16), &value);
-}
-
-/**
- * nla_put_u32 - Add a u32 netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @value: numeric value
- */
-static inline int nla_put_u32(struct sk_buff *skb, int attrtype, u32 value)
-{
- return nla_put(skb, attrtype, sizeof(u32), &value);
-}
-
-/**
- * nla_put_64 - Add a u64 netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @value: numeric value
- */
-static inline int nla_put_u64(struct sk_buff *skb, int attrtype, u64 value)
-{
- return nla_put(skb, attrtype, sizeof(u64), &value);
-}
-
-/**
- * nla_put_string - Add a string netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @str: NUL terminated string
- */
-static inline int nla_put_string(struct sk_buff *skb, int attrtype,
- const char *str)
-{
- return nla_put(skb, attrtype, strlen(str) + 1, str);
-}
-
-/**
- * nla_put_flag - Add a flag netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- */
-static inline int nla_put_flag(struct sk_buff *skb, int attrtype)
-{
- return nla_put(skb, attrtype, 0, NULL);
-}
-
-/**
- * nla_put_msecs - Add a msecs netlink attribute to a socket buffer
- * @skb: socket buffer to add attribute to
- * @attrtype: attribute type
- * @jiffies: number of msecs in jiffies
- */
-static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
- unsigned long jiffies)
-{
- u64 tmp = jiffies_to_msecs(jiffies);
- return nla_put(skb, attrtype, sizeof(u64), &tmp);
-}
-
-#define NLA_PUT(skb, attrtype, attrlen, data) \
- do { \
- if (nla_put(skb, attrtype, attrlen, data) < 0) \
- goto nla_put_failure; \
- } while(0)
-
-#define NLA_PUT_TYPE(skb, type, attrtype, value) \
- do { \
- type __tmp = value; \
- NLA_PUT(skb, attrtype, sizeof(type), &__tmp); \
- } while(0)
-
-#define NLA_PUT_U8(skb, attrtype, value) \
- NLA_PUT_TYPE(skb, u8, attrtype, value)
-
-#define NLA_PUT_U16(skb, attrtype, value) \
- NLA_PUT_TYPE(skb, u16, attrtype, value)
-
-#define NLA_PUT_LE16(skb, attrtype, value) \
- NLA_PUT_TYPE(skb, __le16, attrtype, value)
-
-#define NLA_PUT_U32(skb, attrtype, value) \
- NLA_PUT_TYPE(skb, u32, attrtype, value)
-
-#define NLA_PUT_BE32(skb, attrtype, value) \
- NLA_PUT_TYPE(skb, __be32, attrtype, value)
-
-#define NLA_PUT_U64(skb, attrtype, value) \
- NLA_PUT_TYPE(skb, u64, attrtype, value)
-
-#define NLA_PUT_STRING(skb, attrtype, value) \
- NLA_PUT(skb, attrtype, strlen(value) + 1, value)
-
-#define NLA_PUT_FLAG(skb, attrtype) \
- NLA_PUT(skb, attrtype, 0, NULL)
-
-#define NLA_PUT_MSECS(skb, attrtype, jiffies) \
- NLA_PUT_U64(skb, attrtype, jiffies_to_msecs(jiffies))
-
-/**
- * nla_get_u32 - return payload of u32 attribute
- * @nla: u32 netlink attribute
- */
-static inline u32 nla_get_u32(struct nlattr *nla)
-{
- return *(u32 *) nla_data(nla);
-}
-
-/**
- * nla_get_be32 - return payload of __be32 attribute
- * @nla: __be32 netlink attribute
- */
-static inline __be32 nla_get_be32(struct nlattr *nla)
-{
- return *(__be32 *) nla_data(nla);
-}
-
-/**
- * nla_get_u16 - return payload of u16 attribute
- * @nla: u16 netlink attribute
- */
-static inline u16 nla_get_u16(struct nlattr *nla)
-{
- return *(u16 *) nla_data(nla);
-}
-
-/**
- * nla_get_le16 - return payload of __le16 attribute
- * @nla: __le16 netlink attribute
- */
-static inline __le16 nla_get_le16(struct nlattr *nla)
-{
- return *(__le16 *) nla_data(nla);
-}
-
-/**
- * nla_get_u8 - return payload of u8 attribute
- * @nla: u8 netlink attribute
- */
-static inline u8 nla_get_u8(struct nlattr *nla)
-{
- return *(u8 *) nla_data(nla);
-}
-
-/**
- * nla_get_u64 - return payload of u64 attribute
- * @nla: u64 netlink attribute
- */
-static inline u64 nla_get_u64(struct nlattr *nla)
-{
- u64 tmp;
-
- nla_memcpy(&tmp, nla, sizeof(tmp));
-
- return tmp;
-}
-
-/**
- * nla_get_flag - return payload of flag attribute
- * @nla: flag netlink attribute
- */
-static inline int nla_get_flag(struct nlattr *nla)
-{
- return !!nla;
-}
-
-/**
- * nla_get_msecs - return payload of msecs attribute
- * @nla: msecs netlink attribute
- *
- * Returns the number of milliseconds in jiffies.
- */
-static inline unsigned long nla_get_msecs(struct nlattr *nla)
-{
- u64 msecs = nla_get_u64(nla);
-
- return msecs_to_jiffies((unsigned long) msecs);
-}
-
-/**
- * nla_nest_start - Start a new level of nested attributes
- * @skb: socket buffer to add attributes to
- * @attrtype: attribute type of container
- *
- * Returns the container attribute
- */
-static inline struct nlattr *nla_nest_start(struct sk_buff *skb, int attrtype)
-{
- struct nlattr *start = (struct nlattr *)skb_tail_pointer(skb);
-
- if (nla_put(skb, attrtype, 0, NULL) < 0)
- return NULL;
-
- return start;
-}
-
-/**
- * nla_nest_end - Finalize nesting of attributes
- * @skb: socket buffer the attribtues are stored in
- * @start: container attribute
- *
- * Corrects the container attribute header to include the all
- * appeneded attributes.
- *
- * Returns the total data length of the skb.
- */
-static inline int nla_nest_end(struct sk_buff *skb, struct nlattr *start)
-{
- start->nla_len = skb_tail_pointer(skb) - (unsigned char *)start;
- return skb->len;
-}
-
-/**
- * nla_nest_cancel - Cancel nesting of attributes
- * @skb: socket buffer the message is stored in
- * @start: container attribute
- *
- * Removes the container attribute and including all nested
- * attributes. Returns -1.
- */
-static inline int nla_nest_cancel(struct sk_buff *skb, struct nlattr *start)
-{
- return nlmsg_trim(skb, start);
-}
-
-/**
- * nla_validate_nested - Validate a stream of nested attributes
- * @start: container attribute
- * @maxtype: maximum attribute type to be expected
- * @policy: validation policy
- *
- * Validates all attributes in the nested attribute stream against the
- * specified policy. Attributes with a type exceeding maxtype will be
- * ignored. See documenation of struct nla_policy for more details.
- *
- * Returns 0 on success or a negative error code.
- */
-static inline int nla_validate_nested(struct nlattr *start, int maxtype,
- const struct nla_policy *policy)
-{
- return nla_validate(nla_data(start), nla_len(start), maxtype, policy);
-}
-
-/**
- * nla_for_each_attr - iterate over a stream of attributes
- * @pos: loop counter, set to current attribute
- * @head: head of attribute stream
- * @len: length of attribute stream
- * @rem: initialized to len, holds bytes currently remaining in stream
- */
-#define nla_for_each_attr(pos, head, len, rem) \
- for (pos = head, rem = len; \
- nla_ok(pos, rem); \
- pos = nla_next(pos, &(rem)))
-
-/**
- * nla_for_each_nested - iterate over nested attributes
- * @pos: loop counter, set to current attribute
- * @nla: attribute containing the nested attributes
- * @rem: initialized to len, holds bytes currently remaining in stream
- */
-#define nla_for_each_nested(pos, nla, rem) \
- nla_for_each_attr(pos, nla_data(nla), nla_len(nla), rem)
-
-static inline int VERIFY_NUL_STRING(struct nlattr *attr)
-{
- return 0;
-}
-
-#endif
+++ /dev/null
-/*
- * Distributed under the terms of the GNU GPL version 2.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <asm/hardirq.h>
-
-int vprintk(const char *msg, ...)
-{
-#define BUFFER_SIZE 1024
- char *buffer = kmalloc(BUFFER_SIZE, GFP_ATOMIC);
- int retval;
- if (buffer) {
- va_list args;
- va_start(args, msg);
- vsnprintf(buffer, BUFFER_SIZE, msg, args);
- va_end(args);
- retval = printk("%s", buffer);
- kfree(buffer);
- } else {
- retval = printk("<<vprintk allocation failure>> %s", msg);
- }
- return retval;
-}
-
-EXPORT_SYMBOL(vprintk);
-
-#ifdef CONFIG_DEBUG_SPINLOCK
-void __might_sleep(char *file, int line)
-{
- static unsigned long prev_jiffy; /* ratelimiting */
-
- if ((in_interrupt()) && !oops_in_progress) {
- if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy)
- return;
- prev_jiffy = jiffies;
- printk(KERN_ERR "BUG: sleeping function called from invalid"
- " context at %s:%d\n", file, line);
- dump_stack();
- }
-}
-EXPORT_SYMBOL(__might_sleep);
-#endif
+++ /dev/null
-/* Kernel thread helper functions.
- * Copyright (C) 2004 IBM Corporation, Rusty Russell.
- *
- * Creation is done via kthreadd, so that we get a clean environment
- * even if we're invoked from userspace (think modprobe, hotplug cpu,
- * etc.).
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/kthread.h>
-#include <linux/completion.h>
-#include <linux/unistd.h>
-#include <linux/file.h>
-#include <linux/mutex.h>
-#include <asm/semaphore.h>
-#include <asm/smplock.h>
-#include "compat24.h"
-
-static DEFINE_SPINLOCK(kthread_create_lock);
-static LIST_HEAD(kthread_create_list);
-struct task_struct *kthreadd_task;
-
-struct kthread_create_info
-{
- /* Information passed to kthread() from kthreadd. */
- int (*threadfn)(void *data);
- void *data;
- struct completion started;
-
- /* Result passed back to kthread_create() from kthreadd. */
- struct task_struct *result;
- struct completion done;
-
- struct list_head list;
-};
-
-struct kthread_stop_info
-{
- struct task_struct *k;
- int err;
- struct completion done;
-};
-
-/* Thread stopping is done by setthing this var: lock serializes
- * multiple kthread_stop calls. */
-static DEFINE_MUTEX(kthread_stop_lock);
-static struct kthread_stop_info kthread_stop_info;
-
-/**
- * kthread_should_stop - should this kthread return now?
- *
- * When someone calls kthread_stop() on your kthread, it will be woken
- * and this will return true. You should then return, and your return
- * value will be passed through to kthread_stop().
- */
-int kthread_should_stop(void)
-{
- return (kthread_stop_info.k == current);
-}
-EXPORT_SYMBOL(kthread_should_stop);
-
-static int kthread(void *_create)
-{
- struct kthread_create_info *create = _create;
- int (*threadfn)(void *data);
- void *data;
- int ret = -EINTR;
-
- /* Copy data: it's on kthread's stack */
- threadfn = create->threadfn;
- data = create->data;
-
- /* OK, tell user we're spawned, wait for stop or wakeup */
- __set_current_state(TASK_UNINTERRUPTIBLE);
- complete(&create->started);
- schedule();
-
- if (!kthread_should_stop())
- ret = threadfn(data);
-
- /* It might have exited on its own, w/o kthread_stop. Check. */
- if (kthread_should_stop()) {
- kthread_stop_info.err = ret;
- complete(&kthread_stop_info.done);
- }
- return 0;
-}
-
-static void create_kthread(struct kthread_create_info *create)
-{
- int pid;
-
- /* We want our own signal handler (we take no signals by default). */
- pid = kernel_thread(kthread, create, CLONE_FS | CLONE_FILES | SIGCHLD);
- if (pid < 0) {
- create->result = ERR_PTR(pid);
- } else {
- wait_for_completion(&create->started);
- read_lock(&tasklist_lock);
- create->result = find_task_by_pid(pid);
- read_unlock(&tasklist_lock);
- }
- complete(&create->done);
-}
-
-/**
- * kthread_create - create a kthread.
- * @threadfn: the function to run until signal_pending(current).
- * @data: data ptr for @threadfn.
- * @namefmt: printf-style name for the thread.
- *
- * Description: This helper function creates and names a kernel
- * thread. The thread will be stopped: use wake_up_process() to start
- * it. See also kthread_run(), kthread_create_on_cpu().
- *
- * When woken, the thread will run @threadfn() with @data as its
- * argument. @threadfn() can either call do_exit() directly if it is a
- * standalone thread for which noone will call kthread_stop(), or
- * return when 'kthread_should_stop()' is true (which means
- * kthread_stop() has been called). The return value should be zero
- * or a negative error number; it will be passed to kthread_stop().
- *
- * Returns a task_struct or ERR_PTR(-ENOMEM).
- */
-struct task_struct *kthread_create(int (*threadfn)(void *data),
- void *data,
- const char namefmt[],
- ...)
-{
- struct kthread_create_info create;
-
- create.threadfn = threadfn;
- create.data = data;
- init_completion(&create.started);
- init_completion(&create.done);
-
- spin_lock(&kthread_create_lock);
- list_add_tail(&create.list, &kthread_create_list);
- wake_up_process(kthreadd_task);
- spin_unlock(&kthread_create_lock);
-
- wait_for_completion(&create.done);
-
- if (!IS_ERR(create.result)) {
- va_list args;
- va_start(args, namefmt);
- vsnprintf(create.result->comm, sizeof(create.result->comm),
- namefmt, args);
- va_end(args);
- }
- return create.result;
-}
-EXPORT_SYMBOL(kthread_create);
-
-/**
- * kthread_stop - stop a thread created by kthread_create().
- * @k: thread created by kthread_create().
- *
- * Sets kthread_should_stop() for @k to return true, wakes it, and
- * waits for it to exit. Your threadfn() must not call do_exit()
- * itself if you use this function! This can also be called after
- * kthread_create() instead of calling wake_up_process(): the thread
- * will exit without calling threadfn().
- *
- * Returns the result of threadfn(), or %-EINTR if wake_up_process()
- * was never called.
- */
-int kthread_stop(struct task_struct *k)
-{
- int ret;
-
- mutex_lock(&kthread_stop_lock);
-
- /* Thread exit requires BKL, so prevent it while while we're messing
- * with the thread. */
- lock_kernel();
-
- /* Must init completion *before* thread sees kthread_stop_info.k */
- init_completion(&kthread_stop_info.done);
- smp_wmb();
-
- /* Now set kthread_should_stop() to true, and wake it up. */
- kthread_stop_info.k = k;
- wake_up_process(k);
-
- unlock_kernel();
-
- /* Once it dies, reset stop ptr, gather result and we're done. */
- wait_for_completion(&kthread_stop_info.done);
- kthread_stop_info.k = NULL;
- ret = kthread_stop_info.err;
- mutex_unlock(&kthread_stop_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(kthread_stop);
-
-void ignore_signals(struct task_struct *t)
-{
- int i;
-
- for (i = 0; i < _NSIG; ++i)
- t->sig->action[i].sa.sa_handler = SIG_IGN;
-
- flush_signals(t);
-}
-
-/* This is a copy of the set_task_comm() function, which is not exported to
- * modules. */
-static void do_set_task_comm(struct task_struct *tsk, char *buf)
-{
- task_lock(tsk);
- strncpy(tsk->comm, buf, sizeof(tsk->comm));
- tsk->comm[sizeof(tsk->comm)-1]='\0';
- task_unlock(tsk);
-}
-
-int kthreadd(void *unused)
-{
- struct task_struct *tsk = current;
-
- /* Setup a clean context for our children to inherit. */
- do_set_task_comm(tsk, "kthreadd");
- ignore_signals(tsk);
- tsk->nice = -5;
- set_cpus_allowed(tsk, CPU_MASK_ALL);
-
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (list_empty(&kthread_create_list))
- schedule();
- __set_current_state(TASK_RUNNING);
-
- spin_lock(&kthread_create_lock);
- while (!list_empty(&kthread_create_list)) {
- struct kthread_create_info *create;
-
- create = list_entry(kthread_create_list.next,
- struct kthread_create_info, list);
- list_del_init(&create->list);
- spin_unlock(&kthread_create_lock);
-
- create_kthread(create);
-
- spin_lock(&kthread_create_lock);
- }
- spin_unlock(&kthread_create_lock);
- }
-
- return 0;
-}
-
-void init_kthread(void)
-{
- int pid;
-
- pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
- kthreadd_task = find_task_by_pid(pid);
-}
+++ /dev/null
-/*
- * NETLINK Netlink attributes
- *
- * Authors: Thomas Graf <tgraf@suug.ch>
- * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/jiffies.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <net/netlink.h>
-#include <net/sock.h>
-
-/**
- * netlink_queue_skip - Skip netlink message while processing queue.
- * @nlh: Netlink message to be skipped
- * @skb: Socket buffer containing the netlink messages.
- *
- * Pulls the given netlink message off the socket buffer so the next
- * call to netlink_queue_run() will not reconsider the message.
- */
-static void netlink_queue_skip(struct nlmsghdr *nlh, struct sk_buff *skb)
-{
- int msglen = NLMSG_ALIGN(nlh->nlmsg_len);
-
- if (msglen > skb->len)
- msglen = skb->len;
-
- skb_pull(skb, msglen);
-}
-
-static int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
- struct nlmsghdr *))
-{
- struct nlmsghdr *nlh;
- int err;
-
- while (skb->len >= nlmsg_total_size(0)) {
- nlh = nlmsg_hdr(skb);
- err = 0;
-
- if (nlh->nlmsg_len < NLMSG_HDRLEN || skb->len < nlh->nlmsg_len)
- return 0;
-
- /* Only requests are handled by the kernel */
- if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
- goto skip;
-
- /* Skip control messages */
- if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
- goto skip;
-
- err = cb(skb, nlh);
- if (err == -EINTR) {
- /* Not an error, but we interrupt processing */
- netlink_queue_skip(nlh, skb);
- return err;
- }
-skip:
- if (nlh->nlmsg_flags & NLM_F_ACK || err)
- netlink_ack(skb, nlh, err);
-
- netlink_queue_skip(nlh, skb);
- }
-
- return 0;
-}
-
-/**
- * netlink_run_queue - Process netlink receive queue.
- * @sk: Netlink socket containing the queue
- * @qlen: Place to store queue length upon entry
- * @cb: Callback function invoked for each netlink message found
- *
- * Processes as much as there was in the queue upon entry and invokes
- * a callback function for each netlink message found. The callback
- * function may refuse a message by returning a negative error code
- * but setting the error pointer to 0 in which case this function
- * returns with a qlen != 0.
- *
- * qlen must be initialized to 0 before the initial entry, afterwards
- * the function may be called repeatedly until qlen reaches 0.
- *
- * The callback function may return -EINTR to signal that processing
- * of netlink messages shall be interrupted. In this case the message
- * currently being processed will NOT be requeued onto the receive
- * queue.
- */
-void netlink_run_queue(struct sock *sk, unsigned int *qlen,
- int (*cb)(struct sk_buff *, struct nlmsghdr *))
-{
- struct sk_buff *skb;
-
- if (!*qlen || *qlen > skb_queue_len(&sk->receive_queue))
- *qlen = skb_queue_len(&sk->receive_queue);
-
- for (; *qlen; (*qlen)--) {
- skb = skb_dequeue(&sk->receive_queue);
- if (netlink_rcv_skb(skb, cb)) {
- if (skb->len)
- skb_queue_head(&sk->receive_queue, skb);
- else {
- kfree_skb(skb);
- (*qlen)--;
- }
- break;
- }
-
- kfree_skb(skb);
- }
-}
+++ /dev/null
-/*
- This is a maximally equidistributed combined Tausworthe generator
- based on code from GNU Scientific Library 1.5 (30 Jun 2004)
-
- x_n = (s1_n ^ s2_n ^ s3_n)
-
- s1_{n+1} = (((s1_n & 4294967294) <<12) ^ (((s1_n <<13) ^ s1_n) >>19))
- s2_{n+1} = (((s2_n & 4294967288) << 4) ^ (((s2_n << 2) ^ s2_n) >>25))
- s3_{n+1} = (((s3_n & 4294967280) <<17) ^ (((s3_n << 3) ^ s3_n) >>11))
-
- The period of this generator is about 2^88.
-
- From: P. L'Ecuyer, "Maximally Equidistributed Combined Tausworthe
- Generators", Mathematics of Computation, 65, 213 (1996), 203--213.
-
- This is available on the net from L'Ecuyer's home page,
-
- http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps
- ftp://ftp.iro.umontreal.ca/pub/simulation/lecuyer/papers/tausme.ps
-
- There is an erratum in the paper "Tables of Maximally
- Equidistributed Combined LFSR Generators", Mathematics of
- Computation, 68, 225 (1999), 261--269:
- http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps
-
- ... the k_j most significant bits of z_j must be non-
- zero, for each j. (Note: this restriction also applies to the
- computer code given in [4], but was mistakenly not mentioned in
- that paper.)
-
- This affects the seeding procedure by imposing the requirement
- s1 > 1, s2 > 7, s3 > 15.
-
-*/
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/jiffies.h>
-#include <linux/random.h>
-#include <linux/threads.h>
-#include <linux/smp.h>
-
-#include "compat24.h"
-
-struct rnd_state {
- u32 s1, s2, s3;
-};
-
-static struct rnd_state net_rand_state[NR_CPUS];
-
-static u32 __random32(struct rnd_state *state)
-{
-#define TAUSWORTHE(s,a,b,c,d) ((s&c)<<d) ^ (((s <<a) ^ s)>>b)
-
- state->s1 = TAUSWORTHE(state->s1, 13, 19, 4294967294UL, 12);
- state->s2 = TAUSWORTHE(state->s2, 2, 25, 4294967288UL, 4);
- state->s3 = TAUSWORTHE(state->s3, 3, 11, 4294967280UL, 17);
-
- return (state->s1 ^ state->s2 ^ state->s3);
-}
-
-static void __set_random32(struct rnd_state *state, unsigned long s)
-{
- if (s == 0)
- s = 1; /* default seed is 1 */
-
-#define LCG(n) (69069 * n)
- state->s1 = LCG(s);
- state->s2 = LCG(state->s1);
- state->s3 = LCG(state->s2);
-
- /* "warm it up" */
- __random32(state);
- __random32(state);
- __random32(state);
- __random32(state);
- __random32(state);
- __random32(state);
-}
-
-/**
- * random32 - pseudo random number generator
- *
- * A 32 bit pseudo-random number is generated using a fast
- * algorithm suitable for simulation. This algorithm is NOT
- * considered safe for cryptographic use.
- */
-u32 random32(void)
-{
- return __random32(&net_rand_state[smp_processor_id()]);
-}
-EXPORT_SYMBOL(random32);
-
-/**
- * srandom32 - add entropy to pseudo random number generator
- * @seed: seed value
- *
- * Add some additional seeding to the random32() pool.
- * Note: this pool is per cpu so it only affects current CPU.
- */
-void srandom32(u32 entropy)
-{
- struct rnd_state *state = &net_rand_state[smp_processor_id()];
- __set_random32(state, state->s1 ^ entropy);
-}
-EXPORT_SYMBOL(srandom32);
-
-static int __init random32_reseed(void);
-
-/*
- * Generate some initially weak seeding values to allow
- * to start the random32() engine.
- */
-int __init random32_init(void)
-{
- int i;
-
- for (i = 0; i < NR_CPUS; i++) {
- struct rnd_state *state = &net_rand_state[i];
- __set_random32(state, i + jiffies);
- }
- random32_reseed();
- return 0;
-}
-
-/*
- * Generate better values after random number generator
- * is fully initalized.
- */
-static int __init random32_reseed(void)
-{
- int i;
- unsigned long seed;
-
- for (i = 0; i < NR_CPUS; i++) {
- struct rnd_state *state = &net_rand_state[i];
-
- get_random_bytes(&seed, sizeof(seed));
- __set_random32(state, seed);
- }
- return 0;
-}
+++ /dev/null
-/*
- * Distributed under the terms of the GNU GPL version 2.
- */
-
-#include <linux/module.h>
-#include <linux/rcupdate.h>
-#include <linux/sched.h>
-#include <linux/tqueue.h>
-#include <linux/smp.h>
-#include <linux/completion.h>
-
-#include "compat24.h"
-
-#ifdef CONFIG_SMP
-#error "SMP configurations not supported for RCU backport."
-#endif
-
-static int default_blimit = 10;
-static int blimit;
-static int qhimark = 10000;
-static int qlowmark = 100;
-
-static struct rcu_head *head, **tail;
-static int qlen = 0;
-
-static struct tq_struct rcu_task;
-
-/*
- * Invoke the completed RCU callbacks. They are expected to be in
- * a per-cpu list.
- */
-static void rcu_task_routine(void *unused)
-{
- struct rcu_head *list, *next;
- int count = 0;
-
- local_irq_disable();
- list = head;
- head = NULL;
- tail = &head;
- local_irq_enable();
-
- while (list) {
- next = list->next;
- prefetch(next);
- list->func(list);
- list = next;
- if (++count >= blimit)
- break;
- }
-
- local_irq_disable();
- qlen -= count;
- local_irq_enable();
- if (blimit == INT_MAX && qlen <= qlowmark)
- blimit = default_blimit;
-
- if (head)
- schedule_task(&rcu_task);
-}
-
-
-static inline void force_quiescent_state(void)
-{
- current->need_resched = 1;
-}
-
-/**
- * call_rcu - Queue an RCU callback for invocation after a grace period.
- * @rcu: structure to be used for queueing the RCU updates.
- * @func: actual update function to be invoked after the grace period
- *
- * The update function will be invoked some time after a full grace
- * period elapses, in other words after all currently executing RCU
- * read-side critical sections have completed. RCU read-side critical
- * sections are delimited by rcu_read_lock() and rcu_read_unlock(),
- * and may be nested.
- */
-void call_rcu(struct rcu_head *rcu, void (*func)(struct rcu_head *rcu))
-{
- unsigned long flags;
-
- /* FIXME? Following may be mildly expensive, may be worthwhile to
- optimize common case. */
- schedule_task(&rcu_task);
-
- rcu->func = func;
- rcu->next = NULL;
- local_irq_save(flags);
- *tail = rcu;
- tail = &rcu->next;
- if (unlikely(++qlen > qhimark)) {
- blimit = INT_MAX;
- force_quiescent_state();
- }
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL(call_rcu);
-
-void rcu_init(void)
-{
- head = NULL;
- tail = &head;
- blimit = default_blimit;
- rcu_task.routine = rcu_task_routine;
-}
-
-struct rcu_synchronize {
- struct rcu_head head;
- struct completion completion;
-};
-
-/* Because of FASTCALL declaration of complete, we use this wrapper */
-static void wakeme_after_rcu(struct rcu_head *head)
-{
- struct rcu_synchronize *rcu;
-
- rcu = container_of(head, struct rcu_synchronize, head);
- complete(&rcu->completion);
-}
-
-/**
- * synchronize_rcu - wait until a grace period has elapsed.
- *
- * Control will return to the caller some time after a full grace
- * period has elapsed, in other words after all currently executing RCU
- * read-side critical sections have completed. RCU read-side critical
- * sections are delimited by rcu_read_lock() and rcu_read_unlock(),
- * and may be nested.
- *
- * If your read-side code is not protected by rcu_read_lock(), do -not-
- * use synchronize_rcu().
- */
-void synchronize_rcu(void)
-{
- struct rcu_synchronize rcu;
-
- init_completion(&rcu.completion);
- /* Will wake me after RCU finished */
- call_rcu(&rcu.head, wakeme_after_rcu);
-
- /* Wait for it */
- wait_for_completion(&rcu.completion);
-}
-EXPORT_SYMBOL(synchronize_rcu);
+++ /dev/null
-#include "linux/sched.h"
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21)
-
-#ifdef CONFIG_SMP
-/**
- * set_cpus_allowed() - change a given task's processor affinity
- * @p: task to bind
- * @new_mask: bitmask of allowed processors
- *
- * Upon return, the task is running on a legal processor. Note the caller
- * must have a valid reference to the task: it must not exit() prematurely.
- * This call can sleep; do not hold locks on call.
- */
-void set_cpus_allowed(struct task_struct *p, unsigned long new_mask)
-{
- new_mask &= cpu_online_map;
- BUG_ON(!new_mask);
-
- p->cpus_allowed = new_mask;
-
- /*
- * If the task is on a no-longer-allowed processor, we need to move
- * it. If the task is not current, then set need_resched and send
- * its processor an IPI to reschedule.
- */
- if (!(p->cpus_runnable & p->cpus_allowed)) {
- if (p != current) {
- p->need_resched = 1;
- smp_send_reschedule(p->processor);
- }
- /*
- * Wait until we are on a legal processor. If the task is
- * current, then we should be on a legal processor the next
- * time we reschedule. Otherwise, we need to wait for the IPI.
- */
- while (!(p->cpus_runnable & p->cpus_allowed))
- schedule();
- }
-}
-#endif
-
-#endif /* kernel < 2.4.21 */
+++ /dev/null
-/*
- * Distributed under the terms of the GNU GPL version 2.
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-
-#ifndef __HAVE_ARCH_STRCSPN
-/**
- * strcspn - Calculate the length of the initial substring of @s which does not contain letters in @reject
- * @s: The string to be searched
- * @reject: The string to avoid
- */
-size_t strcspn(const char *s, const char *reject)
-{
- const char *p;
- const char *r;
- size_t count = 0;
-
- for (p = s; *p != '\0'; ++p) {
- for (r = reject; *r != '\0'; ++r) {
- if (*p == *r)
- return count;
- }
- ++count;
- }
- return count;
-}
-EXPORT_SYMBOL(strcspn);
-
-/**
- * strlcpy - Copy a %NUL terminated string into a sized buffer
- * @dest: Where to copy the string to
- * @src: Where to copy the string from
- * @size: size of destination buffer
- *
- * Compatible with *BSD: the result is always a valid
- * NUL-terminated string that fits in the buffer (unless,
- * of course, the buffer size is zero). It does not pad
- * out the result like strncpy() does.
- */
-size_t strlcpy(char *dest, const char *src, size_t size)
-{
- size_t ret = strlen(src);
-
- if (size) {
- size_t len = (ret >= size) ? size - 1 : ret;
- memcpy(dest, src, len);
- dest[len] = '\0';
- }
- return ret;
-}
-EXPORT_SYMBOL(strlcpy);
-
-#endif
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-#
-CONFIG_X86=y
-# CONFIG_SBUS is not set
-CONFIG_UID16=y
-
-#
-# Code maturity level options
-#
-# CONFIG_EXPERIMENTAL is not set
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-CONFIG_MODVERSIONS=y
-CONFIG_KMOD=y
-
-#
-# Processor type and features
-#
-# CONFIG_M386 is not set
-# CONFIG_M486 is not set
-# CONFIG_M586 is not set
-# CONFIG_M586TSC is not set
-# CONFIG_M586MMX is not set
-# CONFIG_M686 is not set
-CONFIG_MPENTIUMIII=y
-# CONFIG_MPENTIUM4 is not set
-# CONFIG_MK6 is not set
-# CONFIG_MK7 is not set
-# CONFIG_MK8 is not set
-# CONFIG_MELAN is not set
-# CONFIG_MCRUSOE is not set
-# CONFIG_MWINCHIPC6 is not set
-# CONFIG_MWINCHIP2 is not set
-# CONFIG_MWINCHIP3D is not set
-# CONFIG_MCYRIXIII is not set
-# CONFIG_MVIAC3_2 is not set
-CONFIG_X86_WP_WORKS_OK=y
-CONFIG_X86_INVLPG=y
-CONFIG_X86_CMPXCHG=y
-CONFIG_X86_XADD=y
-CONFIG_X86_BSWAP=y
-CONFIG_X86_POPAD_OK=y
-# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
-CONFIG_RWSEM_XCHGADD_ALGORITHM=y
-# CONFIG_X86_TSC is not set
-CONFIG_X86_L1_CACHE_SHIFT=5
-CONFIG_X86_HAS_TSC=y
-CONFIG_X86_GOOD_APIC=y
-CONFIG_X86_PGE=y
-CONFIG_X86_USE_PPRO_CHECKSUM=y
-CONFIG_X86_F00F_WORKS_OK=y
-# CONFIG_X86_MCE is not set
-# CONFIG_TOSHIBA is not set
-# CONFIG_I8K is not set
-# CONFIG_MICROCODE is not set
-# CONFIG_X86_MSR is not set
-# CONFIG_X86_CPUID is not set
-CONFIG_NOHIGHMEM=y
-# CONFIG_HIGHMEM4G is not set
-# CONFIG_HIGHMEM64G is not set
-# CONFIG_HIGHMEM is not set
-# CONFIG_MATH_EMULATION is not set
-# CONFIG_MTRR is not set
-# CONFIG_SMP is not set
-# CONFIG_X86_UP_APIC is not set
-# CONFIG_X86_TSC_DISABLE is not set
-CONFIG_X86_TSC=y
-
-#
-# General setup
-#
-CONFIG_NET=y
-CONFIG_PCI=y
-# CONFIG_PCI_GOBIOS is not set
-# CONFIG_PCI_GODIRECT is not set
-CONFIG_PCI_GOANY=y
-CONFIG_PCI_BIOS=y
-CONFIG_PCI_DIRECT=y
-CONFIG_ISA=y
-CONFIG_PCI_NAMES=y
-# CONFIG_EISA is not set
-# CONFIG_MCA is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_PCMCIA is not set
-# CONFIG_HOTPLUG_PCI is not set
-CONFIG_SYSVIPC=y
-# CONFIG_BSD_PROCESS_ACCT is not set
-CONFIG_SYSCTL=y
-CONFIG_KCORE_ELF=y
-# CONFIG_KCORE_AOUT is not set
-CONFIG_BINFMT_AOUT=y
-CONFIG_BINFMT_ELF=y
-CONFIG_BINFMT_MISC=y
-# CONFIG_OOM_KILLER is not set
-CONFIG_PM=y
-# CONFIG_APM is not set
-
-#
-# ACPI Support
-#
-# CONFIG_ACPI is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play configuration
-#
-# CONFIG_PNP is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_DEV_FD is not set
-# CONFIG_BLK_DEV_XD is not set
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_SX8 is not set
-# CONFIG_BLK_DEV_LOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_RAM is not set
-# CONFIG_BLK_STATS is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
-# CONFIG_NETFILTER is not set
-CONFIG_FILTER=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-# CONFIG_INET_ECN is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_VLAN_8021Q is not set
-
-#
-#
-#
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_DECNET is not set
-CONFIG_BRIDGE=y
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# ATA/IDE/MFM/RLL support
-#
-CONFIG_IDE=y
-
-#
-# IDE, ATA and ATAPI Block devices
-#
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-# CONFIG_BLK_DEV_HD_IDE is not set
-# CONFIG_BLK_DEV_HD is not set
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-CONFIG_IDEDISK_MULTI_MODE=y
-# CONFIG_IDEDISK_STROKE is not set
-CONFIG_BLK_DEV_IDECD=y
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-
-#
-# IDE chipset support/bugfixes
-#
-# CONFIG_BLK_DEV_CMD640 is not set
-CONFIG_BLK_DEV_IDEPCI=y
-# CONFIG_BLK_DEV_GENERIC is not set
-CONFIG_IDEPCI_SHARE_IRQ=y
-CONFIG_BLK_DEV_IDEDMA_PCI=y
-# CONFIG_BLK_DEV_OFFBOARD is not set
-# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
-CONFIG_IDEDMA_PCI_AUTO=y
-# CONFIG_IDEDMA_ONLYDISK is not set
-CONFIG_BLK_DEV_IDEDMA=y
-# CONFIG_BLK_DEV_ADMA100 is not set
-# CONFIG_BLK_DEV_AEC62XX is not set
-# CONFIG_BLK_DEV_ALI15X3 is not set
-# CONFIG_BLK_DEV_AMD74XX is not set
-# CONFIG_BLK_DEV_ATIIXP is not set
-# CONFIG_BLK_DEV_CMD64X is not set
-# CONFIG_BLK_DEV_TRIFLEX is not set
-# CONFIG_BLK_DEV_CY82C693 is not set
-# CONFIG_BLK_DEV_CS5530 is not set
-# CONFIG_BLK_DEV_HPT34X is not set
-# CONFIG_BLK_DEV_HPT366 is not set
-CONFIG_BLK_DEV_PIIX=y
-# CONFIG_BLK_DEV_NS87415 is not set
-# CONFIG_BLK_DEV_PDC202XX_OLD is not set
-# CONFIG_BLK_DEV_PDC202XX_NEW is not set
-CONFIG_BLK_DEV_RZ1000=y
-# CONFIG_BLK_DEV_SC1200 is not set
-# CONFIG_BLK_DEV_SVWKS is not set
-# CONFIG_BLK_DEV_SIIMAGE is not set
-# CONFIG_BLK_DEV_SIS5513 is not set
-# CONFIG_BLK_DEV_SLC90E66 is not set
-# CONFIG_BLK_DEV_TRM290 is not set
-# CONFIG_BLK_DEV_VIA82CXXX is not set
-# CONFIG_IDE_CHIPSETS is not set
-CONFIG_IDEDMA_AUTO=y
-# CONFIG_IDEDMA_IVB is not set
-# CONFIG_DMA_NONPCI is not set
-
-#
-# SCSI support
-#
-# CONFIG_SCSI is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION_BOOT is not set
-# CONFIG_FUSION_ISENSE is not set
-# CONFIG_FUSION_CTL is not set
-# CONFIG_FUSION_LAN is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Network device support
-#
-CONFIG_NETDEVICES=y
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-CONFIG_DUMMY=m
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_LANCE is not set
-# CONFIG_NET_VENDOR_SMC is not set
-# CONFIG_NET_VENDOR_RACAL is not set
-# CONFIG_DEPCA is not set
-# CONFIG_HP100 is not set
-# CONFIG_NET_ISA is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_APRICOT is not set
-# CONFIG_CS89x0 is not set
-# CONFIG_TULIP is not set
-# CONFIG_DE4X5 is not set
-# CONFIG_DGRS is not set
-# CONFIG_DM9102 is not set
-CONFIG_EEPRO100=y
-# CONFIG_EEPRO100_PIO is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-# CONFIG_NATSEMI is not set
-CONFIG_NE2K_PCI=y
-CONFIG_8139TOO=y
-# CONFIG_8139TOO_PIO is not set
-# CONFIG_8139TOO_TUNE_TWISTER is not set
-# CONFIG_8139TOO_8129 is not set
-# CONFIG_8139_OLD_RX_RESET is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_WINBOND_840 is not set
-# CONFIG_NET_POCKET is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_R8169 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_FDDI is not set
-# CONFIG_PPP is not set
-# CONFIG_SLIP is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-# CONFIG_NET_FC is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-
-#
-# Amateur Radio support
-#
-# CONFIG_HAMRADIO is not set
-
-#
-# IrDA (infrared) support
-#
-# CONFIG_IRDA is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Old CD-ROM drivers (not SCSI, not IDE)
-#
-# CONFIG_CD_NO_IDESCSI is not set
-
-#
-# Input core support
-#
-# CONFIG_INPUT is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-
-#
-# Character devices
-#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_SERIAL=y
-CONFIG_SERIAL_CONSOLE=y
-# CONFIG_SERIAL_EXTENDED is not set
-# CONFIG_SERIAL_NONSTANDARD is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_UNIX98_PTY_COUNT=256
-
-#
-# I2C support
-#
-# CONFIG_I2C is not set
-
-#
-# Mice
-#
-# CONFIG_BUSMOUSE is not set
-CONFIG_MOUSE=y
-CONFIG_PSMOUSE=y
-# CONFIG_82C710_MOUSE is not set
-# CONFIG_PC110_PAD is not set
-# CONFIG_MK712_MOUSE is not set
-
-#
-# Joysticks
-#
-# CONFIG_INPUT_GAMEPORT is not set
-
-#
-# Input core support is needed for gameports
-#
-
-#
-# Input core support is needed for joysticks
-#
-# CONFIG_QIC02_TAPE is not set
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-# CONFIG_SCx200 is not set
-# CONFIG_AMD_RNG is not set
-# CONFIG_INTEL_RNG is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_AMD_PM768 is not set
-# CONFIG_NVRAM is not set
-# CONFIG_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
-# CONFIG_FTAPE is not set
-# CONFIG_AGP is not set
-
-#
-# Direct Rendering Manager (XFree86 DRI support)
-#
-# CONFIG_DRM is not set
-# CONFIG_MWAVE is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# File systems
-#
-# CONFIG_QUOTA is not set
-# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
-# CONFIG_REISERFS_FS is not set
-CONFIG_EXT3_FS=y
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-# CONFIG_FAT_FS is not set
-# CONFIG_CRAMFS is not set
-CONFIG_TMPFS=y
-CONFIG_RAMFS=y
-CONFIG_ISO9660_FS=y
-# CONFIG_JOLIET is not set
-# CONFIG_ZISOFS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_NTFS_FS is not set
-# CONFIG_HPFS_FS is not set
-CONFIG_PROC_FS=y
-CONFIG_DEVPTS_FS=y
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_EXT2_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UDF_FS is not set
-# CONFIG_UFS_FS is not set
-# CONFIG_XFS_FS is not set
-
-#
-# Network File Systems
-#
-# CONFIG_CODA_FS is not set
-# CONFIG_NFS_FS is not set
-# CONFIG_NFSD is not set
-# CONFIG_SUNRPC is not set
-# CONFIG_LOCKD is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_ZISOFS_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-# CONFIG_SMB_NLS is not set
-CONFIG_NLS=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ISO8859_1 is not set
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Console drivers
-#
-CONFIG_VGA_CONSOLE=y
-# CONFIG_VIDEO_SELECT is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# USB support
-#
-# CONFIG_USB is not set
-
-#
-# Support for USB gadgets
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# Bluetooth support
-#
-# CONFIG_BLUEZ is not set
-
-#
-# Kernel hacking
-#
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_STACKOVERFLOW is not set
-# CONFIG_DEBUG_HIGHMEM is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_IOVIRT is not set
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-CONFIG_FRAME_POINTER=y
-CONFIG_LOG_BUF_SHIFT=0
-
-#
-# Cryptographic options
-#
-# CONFIG_CRYPTO is not set
-
-#
-# Library routines
-#
-CONFIG_CRC32=y
-# CONFIG_ZLIB_INFLATE is not set
-# CONFIG_ZLIB_DEFLATE is not set
dh_clean
debconf-updatepo
-MAJOR=$(shell echo $(KVERS) | sed -e 's/\(...\).*/\1/')
-ifeq ($(MAJOR),2.6)
-KO=k
-l2x=l26
-dpdir=datapath/linux-2.6
-else
-KO=
-l2x=l24
-dpdir=datapath/linux-2.4
-endif
-
kdist_clean:
dh_clean
rm -rf openflow
dh_testroot
dh_clean -k
tar xzf openflow.tar.gz
- cd openflow && ./configure --with-$(l2x)=$(KSRC) $(DATAPATH_CONFIGURE_OPTS) --with-build-number=$(BUILD_NUMBER)
- cd openflow && $(MAKE) -C $(dpdir)
+ cd openflow && ./configure --with-l26=$(KSRC) $(DATAPATH_CONFIGURE_OPTS) --with-build-number=$(BUILD_NUMBER)
+ cd openflow && $(MAKE) -C datapath/linux-2.6
install -d -m755 $(DSTDIR)
- install -m644 openflow/$(dpdir)/*_mod.$(KO)o $(DSTDIR)/
+ install -m644 openflow/datapath/linux-2.6/*_mod.ko $(DSTDIR)/
dh_installdocs
dh_installchangelogs
dh_compress
projects / openvswitch / commitdiff