Return to ip6t_HL.c CVS log

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Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

--------
commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
--------

/*
 * Hop Limit modification target for ip6tables
 * Maciej Soltysiak <solt@dns.toxicfilms.tv>
 * Based on HW's TTL module
 *
 * This software is distributed under the terms of GNU GPL
 */

#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <linux/ipv6.h>

#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_ipv6/ip6t_HL.h>

MODULE_AUTHOR("Maciej Soltysiak <solt@dns.toxicfilms.tv>");
MODULE_DESCRIPTION("IP6 tables Hop Limit modification module");
MODULE_LICENSE("GPL");

static unsigned int ip6t_hl_target(struct sk_buff **pskb,
				   const struct net_device *in,
				   const struct net_device *out,
				   unsigned int hooknum,
				   const struct xt_target *target,
				   const void *targinfo)
{
	struct ipv6hdr *ip6h;
	const struct ip6t_HL_info *info = targinfo;
	int new_hl;

	if (!skb_make_writable(pskb, (*pskb)->len))
		return NF_DROP;

	ip6h = ipv6_hdr(*pskb);

	switch (info->mode) {
		case IP6T_HL_SET:
			new_hl = info->hop_limit;
			break;
		case IP6T_HL_INC:
			new_hl = ip6h->hop_limit + info->hop_limit;
			if (new_hl > 255)
				new_hl = 255;
			break;
		case IP6T_HL_DEC:
			new_hl = ip6h->hop_limit - info->hop_limit;
			if (new_hl < 0)
				new_hl = 0;
			break;
		default:
			new_hl = ip6h->hop_limit;
			break;
	}

	ip6h->hop_limit = new_hl;

	return XT_CONTINUE;
}

static bool ip6t_hl_checkentry(const char *tablename,
		const void *entry,
		const struct xt_target *target,
		void *targinfo,
		unsigned int hook_mask)
{
	const struct ip6t_HL_info *info = targinfo;

	if (info->mode > IP6T_HL_MAXMODE) {
		printk(KERN_WARNING "ip6t_HL: invalid or unknown Mode %u\n",
			info->mode);
		return false;
	}
	if (info->mode != IP6T_HL_SET && info->hop_limit == 0) {
		printk(KERN_WARNING "ip6t_HL: increment/decrement doesn't "
			"make sense with value 0\n");
		return false;
	}
	return true;
}

static struct xt_target ip6t_HL __read_mostly = {
	.name 		= "HL",
	.family		= AF_INET6,
	.target		= ip6t_hl_target,
	.targetsize	= sizeof(struct ip6t_HL_info),
	.table		= "mangle",
	.checkentry	= ip6t_hl_checkentry,
	.me		= THIS_MODULE
};

static int __init ip6t_hl_init(void)
{
	return xt_register_target(&ip6t_HL);
}

static void __exit ip6t_hl_fini(void)
{
	xt_unregister_target(&ip6t_HL);
}

module_init(ip6t_hl_init);
module_exit(ip6t_hl_fini);