[net-next-2.6.git] / net / ipv6 / xfrm6_policy.c

/*
 * xfrm6_policy.c: based on xfrm4_policy.c
 *
 * Authors:
 *	Mitsuru KANDA @USAGI
 * 	Kazunori MIYAZAWA @USAGI
 * 	Kunihiro Ishiguro <kunihiro@ipinfusion.com>
 * 		IPv6 support
 * 	YOSHIFUJI Hideaki
 * 		Split up af-specific portion
 *
 */

#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <net/addrconf.h>
#include <net/dst.h>
#include <net/xfrm.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
#include <net/mip6.h>
#endif

static struct dst_ops xfrm6_dst_ops;
static struct xfrm_policy_afinfo xfrm6_policy_afinfo;

static struct dst_entry *xfrm6_dst_lookup(int tos, xfrm_address_t *saddr,
					  xfrm_address_t *daddr)
{
	struct flowi fl = {};
	struct dst_entry *dst;
	int err;

	memcpy(&fl.fl6_dst, daddr, sizeof(fl.fl6_dst));
	if (saddr)
		memcpy(&fl.fl6_src, saddr, sizeof(fl.fl6_src));

	dst = ip6_route_output(&init_net, NULL, &fl);

	err = dst->error;
	if (dst->error) {
		dst_release(dst);
		dst = ERR_PTR(err);
	}

	return dst;
}

static int xfrm6_get_saddr(xfrm_address_t *saddr, xfrm_address_t *daddr)
{
	struct dst_entry *dst;

	dst = xfrm6_dst_lookup(0, NULL, daddr);
	if (IS_ERR(dst))
		return -EHOSTUNREACH;

	ipv6_dev_get_saddr(ip6_dst_idev(dst)->dev,
			   (struct in6_addr *)&daddr->a6, 0,
			   (struct in6_addr *)&saddr->a6);
	dst_release(dst);
	return 0;
}

static struct dst_entry *
__xfrm6_find_bundle(struct flowi *fl, struct xfrm_policy *policy)
{
	struct dst_entry *dst;

	/* Still not clear if we should set fl->fl6_{src,dst}... */
	read_lock_bh(&policy->lock);
	for (dst = policy->bundles; dst; dst = dst->next) {
		struct xfrm_dst *xdst = (struct xfrm_dst*)dst;
		struct in6_addr fl_dst_prefix, fl_src_prefix;

		ipv6_addr_prefix(&fl_dst_prefix,
				 &fl->fl6_dst,
				 xdst->u.rt6.rt6i_dst.plen);
		ipv6_addr_prefix(&fl_src_prefix,
				 &fl->fl6_src,
				 xdst->u.rt6.rt6i_src.plen);
		if (ipv6_addr_equal(&xdst->u.rt6.rt6i_dst.addr, &fl_dst_prefix) &&
		    ipv6_addr_equal(&xdst->u.rt6.rt6i_src.addr, &fl_src_prefix) &&
		    xfrm_bundle_ok(policy, xdst, fl, AF_INET6,
				   (xdst->u.rt6.rt6i_dst.plen != 128 ||
				    xdst->u.rt6.rt6i_src.plen != 128))) {
			dst_clone(dst);
			break;
		}
	}
	read_unlock_bh(&policy->lock);
	return dst;
}

static int xfrm6_get_tos(struct flowi *fl)
{
	return 0;
}

static int xfrm6_init_path(struct xfrm_dst *path, struct dst_entry *dst,
			   int nfheader_len)
{
	if (dst->ops->family == AF_INET6) {
		struct rt6_info *rt = (struct rt6_info*)dst;
		if (rt->rt6i_node)
			path->path_cookie = rt->rt6i_node->fn_sernum;
	}

	path->u.rt6.rt6i_nfheader_len = nfheader_len;

	return 0;
}

static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev)
{
	struct rt6_info *rt = (struct rt6_info*)xdst->route;

	xdst->u.dst.dev = dev;
	dev_hold(dev);

	xdst->u.rt6.rt6i_idev = in6_dev_get(rt->u.dst.dev);
	if (!xdst->u.rt6.rt6i_idev)
		return -ENODEV;

	/* Sheit... I remember I did this right. Apparently,
	 * it was magically lost, so this code needs audit */
	xdst->u.rt6.rt6i_flags = rt->rt6i_flags & (RTF_ANYCAST |
						   RTF_LOCAL);
	xdst->u.rt6.rt6i_metric = rt->rt6i_metric;
	xdst->u.rt6.rt6i_node = rt->rt6i_node;
	if (rt->rt6i_node)
		xdst->route_cookie = rt->rt6i_node->fn_sernum;
	xdst->u.rt6.rt6i_gateway = rt->rt6i_gateway;
	xdst->u.rt6.rt6i_dst = rt->rt6i_dst;
	xdst->u.rt6.rt6i_src = rt->rt6i_src;

	return 0;
}

static inline void
_decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
{
	u16 offset = skb_network_header_len(skb);
	struct ipv6hdr *hdr = ipv6_hdr(skb);
	struct ipv6_opt_hdr *exthdr;
	const unsigned char *nh = skb_network_header(skb);
	u8 nexthdr = nh[IP6CB(skb)->nhoff];

	memset(fl, 0, sizeof(struct flowi));
	ipv6_addr_copy(&fl->fl6_dst, reverse ? &hdr->saddr : &hdr->daddr);
	ipv6_addr_copy(&fl->fl6_src, reverse ? &hdr->daddr : &hdr->saddr);

	while (pskb_may_pull(skb, nh + offset + 1 - skb->data)) {
		nh = skb_network_header(skb);
		exthdr = (struct ipv6_opt_hdr *)(nh + offset);

		switch (nexthdr) {
		case NEXTHDR_ROUTING:
		case NEXTHDR_HOP:
		case NEXTHDR_DEST:
			offset += ipv6_optlen(exthdr);
			nexthdr = exthdr->nexthdr;
			exthdr = (struct ipv6_opt_hdr *)(nh + offset);
			break;

		case IPPROTO_UDP:
		case IPPROTO_UDPLITE:
		case IPPROTO_TCP:
		case IPPROTO_SCTP:
		case IPPROTO_DCCP:
			if (pskb_may_pull(skb, nh + offset + 4 - skb->data)) {
				__be16 *ports = (__be16 *)exthdr;

				fl->fl_ip_sport = ports[!!reverse];
				fl->fl_ip_dport = ports[!reverse];
			}
			fl->proto = nexthdr;
			return;

		case IPPROTO_ICMPV6:
			if (pskb_may_pull(skb, nh + offset + 2 - skb->data)) {
				u8 *icmp = (u8 *)exthdr;

				fl->fl_icmp_type = icmp[0];
				fl->fl_icmp_code = icmp[1];
			}
			fl->proto = nexthdr;
			return;

#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
		case IPPROTO_MH:
			if (pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
				struct ip6_mh *mh;
				mh = (struct ip6_mh *)exthdr;

				fl->fl_mh_type = mh->ip6mh_type;
			}
			fl->proto = nexthdr;
			return;
#endif

		/* XXX Why are there these headers? */
		case IPPROTO_AH:
		case IPPROTO_ESP:
		case IPPROTO_COMP:
		default:
			fl->fl_ipsec_spi = 0;
			fl->proto = nexthdr;
			return;
		}
	}
}

static inline int xfrm6_garbage_collect(struct dst_ops *ops)
{
	xfrm6_policy_afinfo.garbage_collect();
	return (atomic_read(&xfrm6_dst_ops.entries) > xfrm6_dst_ops.gc_thresh*2);
}

static void xfrm6_update_pmtu(struct dst_entry *dst, u32 mtu)
{
	struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
	struct dst_entry *path = xdst->route;

	path->ops->update_pmtu(path, mtu);
}

static void xfrm6_dst_destroy(struct dst_entry *dst)
{
	struct xfrm_dst *xdst = (struct xfrm_dst *)dst;

	if (likely(xdst->u.rt6.rt6i_idev))
		in6_dev_put(xdst->u.rt6.rt6i_idev);
	xfrm_dst_destroy(xdst);
}

static void xfrm6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
			     int unregister)
{
	struct xfrm_dst *xdst;

	if (!unregister)
		return;

	xdst = (struct xfrm_dst *)dst;
	if (xdst->u.rt6.rt6i_idev->dev == dev) {
		struct inet6_dev *loopback_idev =
			in6_dev_get(dev_net(dev)->loopback_dev);
		BUG_ON(!loopback_idev);

		do {
			in6_dev_put(xdst->u.rt6.rt6i_idev);
			xdst->u.rt6.rt6i_idev = loopback_idev;
			in6_dev_hold(loopback_idev);
			xdst = (struct xfrm_dst *)xdst->u.dst.child;
		} while (xdst->u.dst.xfrm);

		__in6_dev_put(loopback_idev);
	}

	xfrm_dst_ifdown(dst, dev);
}

static struct dst_ops xfrm6_dst_ops = {
	.family =		AF_INET6,
	.protocol =		__constant_htons(ETH_P_IPV6),
	.gc =			xfrm6_garbage_collect,
	.update_pmtu =		xfrm6_update_pmtu,
	.destroy =		xfrm6_dst_destroy,
	.ifdown =		xfrm6_dst_ifdown,
	.local_out =		__ip6_local_out,
	.gc_thresh =		1024,
	.entry_size =		sizeof(struct xfrm_dst),
	.entries =		ATOMIC_INIT(0),
};

static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
	.family =		AF_INET6,
	.dst_ops =		&xfrm6_dst_ops,
	.dst_lookup =		xfrm6_dst_lookup,
	.get_saddr = 		xfrm6_get_saddr,
	.find_bundle =		__xfrm6_find_bundle,
	.decode_session =	_decode_session6,
	.get_tos =		xfrm6_get_tos,
	.init_path =		xfrm6_init_path,
	.fill_dst =		xfrm6_fill_dst,
};

static int __init xfrm6_policy_init(void)
{
	return xfrm_policy_register_afinfo(&xfrm6_policy_afinfo);
}

static void xfrm6_policy_fini(void)
{
	xfrm_policy_unregister_afinfo(&xfrm6_policy_afinfo);
}

int __init xfrm6_init(void)
{
	int ret;

	ret = xfrm6_policy_init();
	if (ret)
		goto out;

	ret = xfrm6_state_init();
	if (ret)
		goto out_policy;
out:
	return ret;
out_policy:
	xfrm6_policy_fini();
	goto out;
}

void xfrm6_fini(void)
{
	//xfrm6_input_fini();
	xfrm6_policy_fini();
	xfrm6_state_fini();
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* xfrm6_policy.c: based on xfrm4_policy.c
	3	*
	4	* Authors:
	5	* Mitsuru KANDA @USAGI
	6	* Kazunori MIYAZAWA @USAGI
	7	* Kunihiro Ishiguro <kunihiro@ipinfusion.com>
	8	* IPv6 support
	9	* YOSHIFUJI Hideaki
	10	* Split up af-specific portion
1ab1457c	11	*
1da177e4 LT	12	*/
1da177e4 LT	13
66cdb3ca HX	14	#include <linux/err.h>
66cdb3ca HX	15	#include <linux/kernel.h>
aabc9761 HX	16	#include <linux/netdevice.h>
aabc9761 HX	17	#include <net/addrconf.h>
45ff5a3f	18	#include <net/dst.h>
1da177e4 LT	19	#include <net/xfrm.h>
	20	#include <net/ip.h>
	21	#include <net/ipv6.h>
	22	#include <net/ip6_route.h>
59fbb3a6	23	#if defined(CONFIG_IPV6_MIP6) \|\| defined(CONFIG_IPV6_MIP6_MODULE)
2ce4272a MN	24	#include <net/mip6.h>
2ce4272a MN	25	#endif
1da177e4 LT	26
	27	static struct dst_ops xfrm6_dst_ops;
	28	static struct xfrm_policy_afinfo xfrm6_policy_afinfo;
	29
66cdb3ca HX	30	static struct dst_entry xfrm6_dst_lookup(int tos, xfrm_address_t saddr,
66cdb3ca HX	31	xfrm_address_t *daddr)
1da177e4	32	{
66cdb3ca HX	33	struct flowi fl = {};
	34	struct dst_entry *dst;
	35	int err;
	36
	37	memcpy(&fl.fl6_dst, daddr, sizeof(fl.fl6_dst));
	38	if (saddr)
	39	memcpy(&fl.fl6_src, saddr, sizeof(fl.fl6_src));
	40
4591db4f	41	dst = ip6_route_output(&init_net, NULL, &fl);
66cdb3ca HX	42
	43	err = dst->error;
	44	if (dst->error) {
4251320f	45	dst_release(dst);
66cdb3ca HX	46	dst = ERR_PTR(err);
	47	}
	48
	49	return dst;
1da177e4 LT	50	}
1da177e4 LT	51
a1e59abf PM	52	static int xfrm6_get_saddr(xfrm_address_t saddr, xfrm_address_t daddr)
a1e59abf PM	53	{
66cdb3ca HX	54	struct dst_entry *dst;
	55
	56	dst = xfrm6_dst_lookup(0, NULL, daddr);
	57	if (IS_ERR(dst))
	58	return -EHOSTUNREACH;
	59
5e5f3f0f	60	ipv6_dev_get_saddr(ip6_dst_idev(dst)->dev,
7cbca67c	61	(struct in6_addr *)&daddr->a6, 0,
5e5f3f0f	62	(struct in6_addr *)&saddr->a6);
66cdb3ca HX	63	dst_release(dst);
66cdb3ca HX	64	return 0;
a1e59abf PM	65	}
a1e59abf PM	66
1da177e4 LT	67	static struct dst_entry *
	68	__xfrm6_find_bundle(struct flowi fl, struct xfrm_policy policy)
	69	{
	70	struct dst_entry *dst;
	71
	72	/* Still not clear if we should set fl->fl6_{src,dst}... */
	73	read_lock_bh(&policy->lock);
	74	for (dst = policy->bundles; dst; dst = dst->next) {
	75	struct xfrm_dst xdst = (struct xfrm_dst)dst;
	76	struct in6_addr fl_dst_prefix, fl_src_prefix;
	77
	78	ipv6_addr_prefix(&fl_dst_prefix,
	79	&fl->fl6_dst,
	80	xdst->u.rt6.rt6i_dst.plen);
	81	ipv6_addr_prefix(&fl_src_prefix,
	82	&fl->fl6_src,
	83	xdst->u.rt6.rt6i_src.plen);
	84	if (ipv6_addr_equal(&xdst->u.rt6.rt6i_dst.addr, &fl_dst_prefix) &&
	85	ipv6_addr_equal(&xdst->u.rt6.rt6i_src.addr, &fl_src_prefix) &&
5b368e61	86	xfrm_bundle_ok(policy, xdst, fl, AF_INET6,
e53820de MN	87	(xdst->u.rt6.rt6i_dst.plen != 128 \|\|
e53820de MN	88	xdst->u.rt6.rt6i_src.plen != 128))) {
1da177e4 LT	89	dst_clone(dst);
	90	break;
	91	}
	92	}
	93	read_unlock_bh(&policy->lock);
	94	return dst;
	95	}
	96
25ee3286	97	static int xfrm6_get_tos(struct flowi *fl)
1da177e4	98	{
25ee3286 HX	99	return 0;
25ee3286 HX	100	}
1da177e4	101
a1b05140 MN	102	static int xfrm6_init_path(struct xfrm_dst path, struct dst_entry dst,
	103	int nfheader_len)
	104	{
	105	if (dst->ops->family == AF_INET6) {
	106	struct rt6_info rt = (struct rt6_info)dst;
	107	if (rt->rt6i_node)
	108	path->path_cookie = rt->rt6i_node->fn_sernum;
	109	}
	110
	111	path->u.rt6.rt6i_nfheader_len = nfheader_len;
	112
	113	return 0;
	114	}
	115
25ee3286 HX	116	static int xfrm6_fill_dst(struct xfrm_dst xdst, struct net_device dev)
	117	{
	118	struct rt6_info rt = (struct rt6_info)xdst->route;
1da177e4	119
25ee3286 HX	120	xdst->u.dst.dev = dev;
25ee3286 HX	121	dev_hold(dev);
1da177e4	122
25ee3286 HX	123	xdst->u.rt6.rt6i_idev = in6_dev_get(rt->u.dst.dev);
	124	if (!xdst->u.rt6.rt6i_idev)
	125	return -ENODEV;
1da177e4	126
25ee3286 HX	127	/* Sheit... I remember I did this right. Apparently,
	128	* it was magically lost, so this code needs audit */
	129	xdst->u.rt6.rt6i_flags = rt->rt6i_flags & (RTF_ANYCAST \|
	130	RTF_LOCAL);
	131	xdst->u.rt6.rt6i_metric = rt->rt6i_metric;
	132	xdst->u.rt6.rt6i_node = rt->rt6i_node;
a1b05140 MN	133	if (rt->rt6i_node)
a1b05140 MN	134	xdst->route_cookie = rt->rt6i_node->fn_sernum;
25ee3286 HX	135	xdst->u.rt6.rt6i_gateway = rt->rt6i_gateway;
	136	xdst->u.rt6.rt6i_dst = rt->rt6i_dst;
	137	xdst->u.rt6.rt6i_src = rt->rt6i_src;
1da177e4	138
1da177e4	139	return 0;
1da177e4 LT	140	}
	141
	142	static inline void
d5422efe	143	_decode_session6(struct sk_buff skb, struct flowi fl, int reverse)
1da177e4	144	{
cfe1fc77	145	u16 offset = skb_network_header_len(skb);
0660e03f	146	struct ipv6hdr *hdr = ipv6_hdr(skb);
e3cae904	147	struct ipv6_opt_hdr *exthdr;
d56f90a7 ACM	148	const unsigned char *nh = skb_network_header(skb);
d56f90a7 ACM	149	u8 nexthdr = nh[IP6CB(skb)->nhoff];
1da177e4 LT	150
1da177e4 LT	151	memset(fl, 0, sizeof(struct flowi));
d5422efe HX	152	ipv6_addr_copy(&fl->fl6_dst, reverse ? &hdr->saddr : &hdr->daddr);
d5422efe HX	153	ipv6_addr_copy(&fl->fl6_src, reverse ? &hdr->daddr : &hdr->saddr);
1da177e4	154
d56f90a7 ACM	155	while (pskb_may_pull(skb, nh + offset + 1 - skb->data)) {
	156	nh = skb_network_header(skb);
	157	exthdr = (struct ipv6_opt_hdr *)(nh + offset);
e3cae904	158
1da177e4 LT	159	switch (nexthdr) {
	160	case NEXTHDR_ROUTING:
	161	case NEXTHDR_HOP:
	162	case NEXTHDR_DEST:
	163	offset += ipv6_optlen(exthdr);
	164	nexthdr = exthdr->nexthdr;
d56f90a7	165	exthdr = (struct ipv6_opt_hdr *)(nh + offset);
1da177e4 LT	166	break;
	167
	168	case IPPROTO_UDP:
ba4e58ec	169	case IPPROTO_UDPLITE:
1da177e4 LT	170	case IPPROTO_TCP:
1da177e4 LT	171	case IPPROTO_SCTP:
9e999993	172	case IPPROTO_DCCP:
d56f90a7	173	if (pskb_may_pull(skb, nh + offset + 4 - skb->data)) {
8c689a6e	174	__be16 ports = (__be16 )exthdr;
1da177e4	175
d5422efe HX	176	fl->fl_ip_sport = ports[!!reverse];
d5422efe HX	177	fl->fl_ip_dport = ports[!reverse];
1da177e4 LT	178	}
	179	fl->proto = nexthdr;
	180	return;
	181
	182	case IPPROTO_ICMPV6:
d56f90a7	183	if (pskb_may_pull(skb, nh + offset + 2 - skb->data)) {
1da177e4 LT	184	u8 icmp = (u8 )exthdr;
	185
	186	fl->fl_icmp_type = icmp[0];
	187	fl->fl_icmp_code = icmp[1];
	188	}
	189	fl->proto = nexthdr;
	190	return;
	191
59fbb3a6	192	#if defined(CONFIG_IPV6_MIP6) \|\| defined(CONFIG_IPV6_MIP6_MODULE)
2ce4272a	193	case IPPROTO_MH:
d56f90a7	194	if (pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
2ce4272a MN	195	struct ip6_mh *mh;
	196	mh = (struct ip6_mh *)exthdr;
	197
	198	fl->fl_mh_type = mh->ip6mh_type;
	199	}
	200	fl->proto = nexthdr;
	201	return;
	202	#endif
	203
1da177e4 LT	204	/* XXX Why are there these headers? */
	205	case IPPROTO_AH:
	206	case IPPROTO_ESP:
	207	case IPPROTO_COMP:
	208	default:
	209	fl->fl_ipsec_spi = 0;
	210	fl->proto = nexthdr;
	211	return;
3ff50b79	212	}
1da177e4 LT	213	}
	214	}
	215
569d3645	216	static inline int xfrm6_garbage_collect(struct dst_ops *ops)
1da177e4	217	{
1da177e4	218	xfrm6_policy_afinfo.garbage_collect();
1da177e4 LT	219	return (atomic_read(&xfrm6_dst_ops.entries) > xfrm6_dst_ops.gc_thresh*2);
	220	}
	221
	222	static void xfrm6_update_pmtu(struct dst_entry *dst, u32 mtu)
	223	{
	224	struct xfrm_dst xdst = (struct xfrm_dst )dst;
	225	struct dst_entry *path = xdst->route;
	226
	227	path->ops->update_pmtu(path, mtu);
	228	}
	229
aabc9761 HX	230	static void xfrm6_dst_destroy(struct dst_entry *dst)
	231	{
	232	struct xfrm_dst xdst = (struct xfrm_dst )dst;
	233
	234	if (likely(xdst->u.rt6.rt6i_idev))
	235	in6_dev_put(xdst->u.rt6.rt6i_idev);
	236	xfrm_dst_destroy(xdst);
	237	}
	238
	239	static void xfrm6_dst_ifdown(struct dst_entry dst, struct net_device dev,
	240	int unregister)
	241	{
	242	struct xfrm_dst *xdst;
	243
	244	if (!unregister)
	245	return;
	246
	247	xdst = (struct xfrm_dst *)dst;
	248	if (xdst->u.rt6.rt6i_idev->dev == dev) {
5a3e55d6	249	struct inet6_dev *loopback_idev =
c346dca1	250	in6_dev_get(dev_net(dev)->loopback_dev);
aabc9761 HX	251	BUG_ON(!loopback_idev);
	252
	253	do {
	254	in6_dev_put(xdst->u.rt6.rt6i_idev);
	255	xdst->u.rt6.rt6i_idev = loopback_idev;
	256	in6_dev_hold(loopback_idev);
	257	xdst = (struct xfrm_dst *)xdst->u.dst.child;
	258	} while (xdst->u.dst.xfrm);
	259
	260	__in6_dev_put(loopback_idev);
	261	}
	262
	263	xfrm_dst_ifdown(dst, dev);
	264	}
	265
1da177e4 LT	266	static struct dst_ops xfrm6_dst_ops = {
	267	.family = AF_INET6,
	268	.protocol = __constant_htons(ETH_P_IPV6),
	269	.gc = xfrm6_garbage_collect,
	270	.update_pmtu = xfrm6_update_pmtu,
aabc9761 HX	271	.destroy = xfrm6_dst_destroy,
aabc9761 HX	272	.ifdown = xfrm6_dst_ifdown,
862b82c6	273	.local_out = __ip6_local_out,
1da177e4 LT	274	.gc_thresh = 1024,
1da177e4 LT	275	.entry_size = sizeof(struct xfrm_dst),
e2422970	276	.entries = ATOMIC_INIT(0),
1da177e4 LT	277	};
	278
	279	static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
	280	.family = AF_INET6,
1da177e4 LT	281	.dst_ops = &xfrm6_dst_ops,
1da177e4 LT	282	.dst_lookup = xfrm6_dst_lookup,
a1e59abf	283	.get_saddr = xfrm6_get_saddr,
1da177e4	284	.find_bundle = __xfrm6_find_bundle,
1da177e4	285	.decode_session = _decode_session6,
25ee3286	286	.get_tos = xfrm6_get_tos,
a1b05140	287	.init_path = xfrm6_init_path,
25ee3286	288	.fill_dst = xfrm6_fill_dst,
1da177e4 LT	289	};
1da177e4 LT	290
0013caba	291	static int __init xfrm6_policy_init(void)
1da177e4	292	{
0013caba	293	return xfrm_policy_register_afinfo(&xfrm6_policy_afinfo);
1da177e4 LT	294	}
	295
	296	static void xfrm6_policy_fini(void)
	297	{
	298	xfrm_policy_unregister_afinfo(&xfrm6_policy_afinfo);
	299	}
	300
0013caba	301	int __init xfrm6_init(void)
1da177e4	302	{
0013caba DL	303	int ret;
	304
	305	ret = xfrm6_policy_init();
	306	if (ret)
	307	goto out;
	308
	309	ret = xfrm6_state_init();
	310	if (ret)
	311	goto out_policy;
	312	out:
	313	return ret;
	314	out_policy:
	315	xfrm6_policy_fini();
	316	goto out;
1da177e4 LT	317	}
	318
	319	void xfrm6_fini(void)
	320	{
	321	//xfrm6_input_fini();
	322	xfrm6_policy_fini();
	323	xfrm6_state_fini();
	324	}