/* Reference to data common to all the instances of this
* transformer. */
const struct xfrm_type *type;
- struct xfrm_mode *inner_mode;
- struct xfrm_mode *inner_mode_iaf;
- struct xfrm_mode *outer_mode;
+ const struct xfrm_mode *inner_mode;
+ const struct xfrm_mode *inner_mode_iaf;
+ const struct xfrm_mode *outer_mode;
const struct xfrm_type_offload *type_offload;
struct module *owner;
const struct xfrm_type *type_map[IPPROTO_MAX];
const struct xfrm_type_offload *type_offload_map[IPPROTO_MAX];
- struct xfrm_mode *mode_map[XFRM_MODE_MAX];
int (*init_flags)(struct xfrm_state *x);
void (*init_tempsel)(struct xfrm_selector *sel,
int xfrm_unregister_type_offload(const struct xfrm_type_offload *type, unsigned short family);
struct xfrm_mode {
- struct module *owner;
u8 encap;
u8 family;
u8 flags;
XFRM_MODE_FLAG_TUNNEL = 1,
};
-int xfrm_register_mode(struct xfrm_mode *mode);
-void xfrm_unregister_mode(struct xfrm_mode *mode);
-
static inline int xfrm_af2proto(unsigned int family)
{
switch(family) {
}
}
-static inline struct xfrm_mode *xfrm_ip2inner_mode(struct xfrm_state *x, int ipproto)
+static inline const struct xfrm_mode *xfrm_ip2inner_mode(struct xfrm_state *x, int ipproto)
{
if ((ipproto == IPPROTO_IPIP && x->props.family == AF_INET) ||
(ipproto == IPPROTO_IPV6 && x->props.family == AF_INET6))
tristate "Virtual (secure) IP: tunneling"
select INET_TUNNEL
select NET_IP_TUNNEL
- depends on INET_XFRM_MODE_TUNNEL
+ select XFRM
---help---
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
tristate
default n
-config INET_XFRM_MODE_TRANSPORT
- tristate "IP: IPsec transport mode"
- default y
- select XFRM
- ---help---
- Support for IPsec transport mode.
-
- If unsure, say Y.
-
-config INET_XFRM_MODE_TUNNEL
- tristate "IP: IPsec tunnel mode"
- default y
- select XFRM
- ---help---
- Support for IPsec tunnel mode.
-
- If unsure, say Y.
-
-config INET_XFRM_MODE_BEET
- tristate "IP: IPsec BEET mode"
- default y
- select XFRM
- ---help---
- Support for IPsec BEET mode.
-
- If unsure, say Y.
-
config INET_DIAG
tristate "INET: socket monitoring interface"
default y
obj-$(CONFIG_INET_ESP_OFFLOAD) += esp4_offload.o
obj-$(CONFIG_INET_IPCOMP) += ipcomp.o
obj-$(CONFIG_INET_XFRM_TUNNEL) += xfrm4_tunnel.o
-obj-$(CONFIG_INET_XFRM_MODE_BEET) += xfrm4_mode_beet.o
obj-$(CONFIG_INET_TUNNEL) += tunnel4.o
-obj-$(CONFIG_INET_XFRM_MODE_TRANSPORT) += xfrm4_mode_transport.o
-obj-$(CONFIG_INET_XFRM_MODE_TUNNEL) += xfrm4_mode_tunnel.o
obj-$(CONFIG_IP_PNP) += ipconfig.o
obj-$(CONFIG_NETFILTER) += netfilter.o netfilter/
obj-$(CONFIG_INET_DIAG) += inet_diag.o
struct net_device *dev;
struct pcpu_sw_netstats *tstats;
struct xfrm_state *x;
- struct xfrm_mode *inner_mode;
+ const struct xfrm_mode *inner_mode;
struct ip_tunnel *tunnel = XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4;
u32 orig_mark = skb->mark;
int ret;
+++ /dev/null
-/*
- * xfrm4_mode_beet.c - BEET mode encapsulation for IPv4.
- *
- * Copyright (c) 2006 Diego Beltrami <diego.beltrami@gmail.com>
- * Miika Komu <miika@iki.fi>
- * Herbert Xu <herbert@gondor.apana.org.au>
- * Abhinav Pathak <abhinav.pathak@hiit.fi>
- * Jeff Ahrenholz <ahrenholz@gmail.com>
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/stringify.h>
-#include <net/dst.h>
-#include <net/ip.h>
-#include <net/xfrm.h>
-
-
-static struct xfrm_mode xfrm4_beet_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_BEET,
- .flags = XFRM_MODE_FLAG_TUNNEL,
- .family = AF_INET,
-};
-
-static int __init xfrm4_beet_init(void)
-{
- return xfrm_register_mode(&xfrm4_beet_mode);
-}
-
-static void __exit xfrm4_beet_exit(void)
-{
- xfrm_unregister_mode(&xfrm4_beet_mode);
-}
-
-module_init(xfrm4_beet_init);
-module_exit(xfrm4_beet_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET, XFRM_MODE_BEET);
+++ /dev/null
-/*
- * xfrm4_mode_transport.c - Transport mode encapsulation for IPv4.
- *
- * Copyright (c) 2004-2006 Herbert Xu <herbert@gondor.apana.org.au>
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/stringify.h>
-#include <net/dst.h>
-#include <net/ip.h>
-#include <net/xfrm.h>
-#include <net/protocol.h>
-
-static struct xfrm_mode xfrm4_transport_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_TRANSPORT,
- .family = AF_INET,
-};
-
-static int __init xfrm4_transport_init(void)
-{
- return xfrm_register_mode(&xfrm4_transport_mode);
-}
-
-static void __exit xfrm4_transport_exit(void)
-{
- xfrm_unregister_mode(&xfrm4_transport_mode);
-}
-
-module_init(xfrm4_transport_init);
-module_exit(xfrm4_transport_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET, XFRM_MODE_TRANSPORT);
+++ /dev/null
-/*
- * xfrm4_mode_tunnel.c - Tunnel mode encapsulation for IPv4.
- *
- * Copyright (c) 2004-2006 Herbert Xu <herbert@gondor.apana.org.au>
- */
-
-#include <linux/gfp.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/stringify.h>
-#include <net/dst.h>
-#include <net/inet_ecn.h>
-#include <net/ip.h>
-#include <net/xfrm.h>
-
-static struct xfrm_mode xfrm4_tunnel_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_TUNNEL,
- .flags = XFRM_MODE_FLAG_TUNNEL,
- .family = AF_INET,
-};
-
-static int __init xfrm4_mode_tunnel_init(void)
-{
- return xfrm_register_mode(&xfrm4_tunnel_mode);
-}
-
-static void __exit xfrm4_mode_tunnel_exit(void)
-{
- xfrm_unregister_mode(&xfrm4_tunnel_mode);
-}
-
-module_init(xfrm4_mode_tunnel_init);
-module_exit(xfrm4_mode_tunnel_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET, XFRM_MODE_TUNNEL);
tristate
default n
-config INET6_XFRM_MODE_TRANSPORT
- tristate "IPv6: IPsec transport mode"
- default IPV6
- select XFRM
- ---help---
- Support for IPsec transport mode.
-
- If unsure, say Y.
-
-config INET6_XFRM_MODE_TUNNEL
- tristate "IPv6: IPsec tunnel mode"
- default IPV6
- select XFRM
- ---help---
- Support for IPsec tunnel mode.
-
- If unsure, say Y.
-
-config INET6_XFRM_MODE_BEET
- tristate "IPv6: IPsec BEET mode"
- default IPV6
- select XFRM
- ---help---
- Support for IPsec BEET mode.
-
- If unsure, say Y.
-
-config INET6_XFRM_MODE_ROUTEOPTIMIZATION
- tristate "IPv6: MIPv6 route optimization mode"
- select XFRM
- ---help---
- Support for MIPv6 route optimization mode.
-
config IPV6_VTI
tristate "Virtual (secure) IPv6: tunneling"
select IPV6_TUNNEL
select NET_IP_TUNNEL
- depends on INET6_XFRM_MODE_TUNNEL
+ select XFRM
---help---
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
obj-$(CONFIG_INET6_IPCOMP) += ipcomp6.o
obj-$(CONFIG_INET6_XFRM_TUNNEL) += xfrm6_tunnel.o
obj-$(CONFIG_INET6_TUNNEL) += tunnel6.o
-obj-$(CONFIG_INET6_XFRM_MODE_TRANSPORT) += xfrm6_mode_transport.o
-obj-$(CONFIG_INET6_XFRM_MODE_TUNNEL) += xfrm6_mode_tunnel.o
-obj-$(CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION) += xfrm6_mode_ro.o
-obj-$(CONFIG_INET6_XFRM_MODE_BEET) += xfrm6_mode_beet.o
obj-$(CONFIG_IPV6_MIP6) += mip6.o
obj-$(CONFIG_IPV6_ILA) += ila/
obj-$(CONFIG_NETFILTER) += netfilter/
struct net_device *dev;
struct pcpu_sw_netstats *tstats;
struct xfrm_state *x;
- struct xfrm_mode *inner_mode;
+ const struct xfrm_mode *inner_mode;
struct ip6_tnl *t = XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip6;
u32 orig_mark = skb->mark;
int ret;
+++ /dev/null
-/*
- * xfrm6_mode_beet.c - BEET mode encapsulation for IPv6.
- *
- * Copyright (c) 2006 Diego Beltrami <diego.beltrami@gmail.com>
- * Miika Komu <miika@iki.fi>
- * Herbert Xu <herbert@gondor.apana.org.au>
- * Abhinav Pathak <abhinav.pathak@hiit.fi>
- * Jeff Ahrenholz <ahrenholz@gmail.com>
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/stringify.h>
-#include <net/dsfield.h>
-#include <net/dst.h>
-#include <net/inet_ecn.h>
-#include <net/ipv6.h>
-#include <net/xfrm.h>
-
-static struct xfrm_mode xfrm6_beet_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_BEET,
- .flags = XFRM_MODE_FLAG_TUNNEL,
- .family = AF_INET6,
-};
-
-static int __init xfrm6_beet_init(void)
-{
- return xfrm_register_mode(&xfrm6_beet_mode);
-}
-
-static void __exit xfrm6_beet_exit(void)
-{
- xfrm_unregister_mode(&xfrm6_beet_mode);
-}
-
-module_init(xfrm6_beet_init);
-module_exit(xfrm6_beet_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET6, XFRM_MODE_BEET);
+++ /dev/null
-/*
- * xfrm6_mode_ro.c - Route optimization mode for IPv6.
- *
- * Copyright (C)2003-2006 Helsinki University of Technology
- * Copyright (C)2003-2006 USAGI/WIDE Project
- *
- * 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, see <http://www.gnu.org/licenses/>.
- */
-/*
- * Authors:
- * Noriaki TAKAMIYA @USAGI
- * Masahide NAKAMURA @USAGI
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/stringify.h>
-#include <linux/time.h>
-#include <net/ipv6.h>
-#include <net/xfrm.h>
-
-static struct xfrm_mode xfrm6_ro_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_ROUTEOPTIMIZATION,
- .family = AF_INET6,
-};
-
-static int __init xfrm6_ro_init(void)
-{
- return xfrm_register_mode(&xfrm6_ro_mode);
-}
-
-static void __exit xfrm6_ro_exit(void)
-{
- xfrm_unregister_mode(&xfrm6_ro_mode);
-}
-
-module_init(xfrm6_ro_init);
-module_exit(xfrm6_ro_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET6, XFRM_MODE_ROUTEOPTIMIZATION);
+++ /dev/null
-/*
- * xfrm6_mode_transport.c - Transport mode encapsulation for IPv6.
- *
- * Copyright (C) 2002 USAGI/WIDE Project
- * Copyright (c) 2004-2006 Herbert Xu <herbert@gondor.apana.org.au>
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/stringify.h>
-#include <net/dst.h>
-#include <net/ipv6.h>
-#include <net/xfrm.h>
-#include <net/protocol.h>
-
-static struct xfrm_mode xfrm6_transport_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_TRANSPORT,
- .family = AF_INET6,
-};
-
-static int __init xfrm6_transport_init(void)
-{
- return xfrm_register_mode(&xfrm6_transport_mode);
-}
-
-static void __exit xfrm6_transport_exit(void)
-{
- xfrm_unregister_mode(&xfrm6_transport_mode);
-}
-
-module_init(xfrm6_transport_init);
-module_exit(xfrm6_transport_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET6, XFRM_MODE_TRANSPORT);
+++ /dev/null
-/*
- * xfrm6_mode_tunnel.c - Tunnel mode encapsulation for IPv6.
- *
- * Copyright (C) 2002 USAGI/WIDE Project
- * Copyright (c) 2004-2006 Herbert Xu <herbert@gondor.apana.org.au>
- */
-
-#include <linux/gfp.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/stringify.h>
-#include <net/dsfield.h>
-#include <net/dst.h>
-#include <net/inet_ecn.h>
-#include <net/ip6_route.h>
-#include <net/ipv6.h>
-#include <net/xfrm.h>
-
-/* Add encapsulation header.
- *
- * The top IP header will be constructed per RFC 2401.
- */
-static struct xfrm_mode xfrm6_tunnel_mode = {
- .owner = THIS_MODULE,
- .encap = XFRM_MODE_TUNNEL,
- .flags = XFRM_MODE_FLAG_TUNNEL,
- .family = AF_INET6,
-};
-
-static int __init xfrm6_mode_tunnel_init(void)
-{
- return xfrm_register_mode(&xfrm6_tunnel_mode);
-}
-
-static void __exit xfrm6_mode_tunnel_exit(void)
-{
- xfrm_unregister_mode(&xfrm6_tunnel_mode);
-}
-
-module_init(xfrm6_mode_tunnel_init);
-module_exit(xfrm6_mode_tunnel_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_XFRM_MODE(AF_INET6, XFRM_MODE_TUNNEL);
static int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct xfrm_mode *inner_mode = x->inner_mode;
+ const struct xfrm_mode *inner_mode = x->inner_mode;
const struct xfrm_state_afinfo *afinfo;
int err = -EAFNOSUPPORT;
*/
static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb)
{
-#if IS_ENABLED(CONFIG_INET_XFRM_MODE_TRANSPORT)
int ihl = skb->data - skb_transport_header(skb);
if (skb->transport_header != skb->network_header) {
ip_hdr(skb)->tot_len = htons(skb->len + ihl);
skb_reset_transport_header(skb);
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
{
-#if IS_ENABLED(CONFIG_INET6_XFRM_MODE_TRANSPORT)
+#if IS_ENABLED(CONFIG_IPV6)
int ihl = skb->data - skb_transport_header(skb);
if (skb->transport_header != skb->network_header) {
skb_reset_transport_header(skb);
return 0;
#else
- return -EOPNOTSUPP;
+ WARN_ON_ONCE(1);
+ return -EAFNOSUPPORT;
#endif
}
{
const struct xfrm_state_afinfo *afinfo;
struct net *net = dev_net(skb->dev);
+ const struct xfrm_mode *inner_mode;
int err;
__be32 seq;
__be32 seq_hi;
struct xfrm_state *x = NULL;
xfrm_address_t *daddr;
- struct xfrm_mode *inner_mode;
u32 mark = skb->mark;
unsigned int family = AF_UNSPEC;
int decaps = 0;
static int xfrmi_rcv_cb(struct sk_buff *skb, int err)
{
+ const struct xfrm_mode *inner_mode;
struct pcpu_sw_netstats *tstats;
- struct xfrm_mode *inner_mode;
struct net_device *dev;
struct xfrm_state *x;
struct xfrm_if *xi;
*/
static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
{
-#if IS_ENABLED(CONFIG_INET_XFRM_MODE_TRANSPORT)
struct iphdr *iph = ip_hdr(skb);
int ihl = iph->ihl * 4;
__skb_pull(skb, ihl);
memmove(skb_network_header(skb), iph, ihl);
return 0;
-#else
- WARN_ON_ONCE(1);
- return -EOPNOTSUPP;
-#endif
}
/* Add encapsulation header.
*/
static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb)
{
-#if IS_ENABLED(CONFIG_INET6_XFRM_MODE_TRANSPORT)
+#if IS_ENABLED(CONFIG_IPV6)
struct ipv6hdr *iph;
u8 *prevhdr;
int hdr_len;
return 0;
#else
WARN_ON_ONCE(1);
- return -EOPNOTSUPP;
+ return -EAFNOSUPPORT;
#endif
}
*/
static int xfrm6_ro_output(struct xfrm_state *x, struct sk_buff *skb)
{
-#if IS_ENABLED(CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION)
+#if IS_ENABLED(CONFIG_IPV6)
struct ipv6hdr *iph;
u8 *prevhdr;
int hdr_len;
return 0;
#else
WARN_ON_ONCE(1);
- return -EOPNOTSUPP;
+ return -EAFNOSUPPORT;
#endif
}
static int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb)
{
const struct xfrm_state_afinfo *afinfo;
- struct xfrm_mode *inner_mode;
+ const struct xfrm_mode *inner_mode;
int err = -EAFNOSUPPORT;
if (x->sel.family == AF_UNSPEC)
struct dst_entry *dst)
{
const struct xfrm_state_afinfo *afinfo;
+ const struct xfrm_mode *inner_mode;
struct net *net = xp_net(policy);
unsigned long now = jiffies;
struct net_device *dev;
- struct xfrm_mode *inner_mode;
struct xfrm_dst *xdst_prev = NULL;
struct xfrm_dst *xdst0 = NULL;
int i = 0;
module_put(type->owner);
}
-static DEFINE_SPINLOCK(xfrm_mode_lock);
-int xfrm_register_mode(struct xfrm_mode *mode)
-{
- struct xfrm_state_afinfo *afinfo;
- struct xfrm_mode **modemap;
- int err;
-
- if (unlikely(mode->encap >= XFRM_MODE_MAX))
- return -EINVAL;
-
- afinfo = xfrm_state_get_afinfo(mode->family);
- if (unlikely(afinfo == NULL))
- return -EAFNOSUPPORT;
-
- err = -EEXIST;
- modemap = afinfo->mode_map;
- spin_lock_bh(&xfrm_mode_lock);
- if (modemap[mode->encap])
- goto out;
-
- err = -ENOENT;
- if (!try_module_get(afinfo->owner))
- goto out;
-
- modemap[mode->encap] = mode;
- err = 0;
-
-out:
- spin_unlock_bh(&xfrm_mode_lock);
- rcu_read_unlock();
- return err;
-}
-EXPORT_SYMBOL(xfrm_register_mode);
-
-void xfrm_unregister_mode(struct xfrm_mode *mode)
-{
- struct xfrm_state_afinfo *afinfo;
- struct xfrm_mode **modemap;
-
- afinfo = xfrm_state_get_afinfo(mode->family);
- if (WARN_ON_ONCE(!afinfo))
- return;
-
- modemap = afinfo->mode_map;
- spin_lock_bh(&xfrm_mode_lock);
- if (likely(modemap[mode->encap] == mode)) {
- modemap[mode->encap] = NULL;
- module_put(afinfo->owner);
- }
-
- spin_unlock_bh(&xfrm_mode_lock);
- rcu_read_unlock();
-}
-EXPORT_SYMBOL(xfrm_unregister_mode);
-
-static struct xfrm_mode *xfrm_get_mode(unsigned int encap, int family)
-{
- struct xfrm_state_afinfo *afinfo;
- struct xfrm_mode *mode;
- int modload_attempted = 0;
+static const struct xfrm_mode xfrm4_mode_map[XFRM_MODE_MAX] = {
+ [XFRM_MODE_BEET] = {
+ .encap = XFRM_MODE_BEET,
+ .flags = XFRM_MODE_FLAG_TUNNEL,
+ .family = AF_INET,
+ },
+ [XFRM_MODE_TRANSPORT] = {
+ .encap = XFRM_MODE_TRANSPORT,
+ .family = AF_INET,
+ },
+ [XFRM_MODE_TUNNEL] = {
+ .encap = XFRM_MODE_TUNNEL,
+ .flags = XFRM_MODE_FLAG_TUNNEL,
+ .family = AF_INET,
+ },
+};
+
+static const struct xfrm_mode xfrm6_mode_map[XFRM_MODE_MAX] = {
+ [XFRM_MODE_BEET] = {
+ .encap = XFRM_MODE_BEET,
+ .flags = XFRM_MODE_FLAG_TUNNEL,
+ .family = AF_INET6,
+ },
+ [XFRM_MODE_ROUTEOPTIMIZATION] = {
+ .encap = XFRM_MODE_ROUTEOPTIMIZATION,
+ .family = AF_INET6,
+ },
+ [XFRM_MODE_TRANSPORT] = {
+ .encap = XFRM_MODE_TRANSPORT,
+ .family = AF_INET6,
+ },
+ [XFRM_MODE_TUNNEL] = {
+ .encap = XFRM_MODE_TUNNEL,
+ .flags = XFRM_MODE_FLAG_TUNNEL,
+ .family = AF_INET6,
+ },
+};
+
+static const struct xfrm_mode *xfrm_get_mode(unsigned int encap, int family)
+{
+ const struct xfrm_mode *mode;
if (unlikely(encap >= XFRM_MODE_MAX))
return NULL;
-retry:
- afinfo = xfrm_state_get_afinfo(family);
- if (unlikely(afinfo == NULL))
- return NULL;
-
- mode = READ_ONCE(afinfo->mode_map[encap]);
- if (unlikely(mode && !try_module_get(mode->owner)))
- mode = NULL;
-
- rcu_read_unlock();
- if (!mode && !modload_attempted) {
- request_module("xfrm-mode-%d-%d", family, encap);
- modload_attempted = 1;
- goto retry;
+ switch (family) {
+ case AF_INET:
+ mode = &xfrm4_mode_map[encap];
+ if (mode->family == family)
+ return mode;
+ break;
+ case AF_INET6:
+ mode = &xfrm6_mode_map[encap];
+ if (mode->family == family)
+ return mode;
+ break;
+ default:
+ break;
}
- return mode;
-}
-
-static void xfrm_put_mode(struct xfrm_mode *mode)
-{
- module_put(mode->owner);
+ return NULL;
}
void xfrm_state_free(struct xfrm_state *x)
kfree(x->coaddr);
kfree(x->replay_esn);
kfree(x->preplay_esn);
- if (x->inner_mode)
- xfrm_put_mode(x->inner_mode);
- if (x->inner_mode_iaf)
- xfrm_put_mode(x->inner_mode_iaf);
- if (x->outer_mode)
- xfrm_put_mode(x->outer_mode);
if (x->type_offload)
xfrm_put_type_offload(x->type_offload);
if (x->type) {
int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload)
{
- struct xfrm_state_afinfo *afinfo;
- struct xfrm_mode *inner_mode;
+ const struct xfrm_mode *inner_mode;
+ const struct xfrm_state_afinfo *afinfo;
int family = x->props.family;
int err;
goto error;
if (!(inner_mode->flags & XFRM_MODE_FLAG_TUNNEL) &&
- family != x->sel.family) {
- xfrm_put_mode(inner_mode);
+ family != x->sel.family)
goto error;
- }
x->inner_mode = inner_mode;
} else {
- struct xfrm_mode *inner_mode_iaf;
+ const struct xfrm_mode *inner_mode_iaf;
int iafamily = AF_INET;
inner_mode = xfrm_get_mode(x->props.mode, x->props.family);
if (inner_mode == NULL)
goto error;
- if (!(inner_mode->flags & XFRM_MODE_FLAG_TUNNEL)) {
- xfrm_put_mode(inner_mode);
+ if (!(inner_mode->flags & XFRM_MODE_FLAG_TUNNEL))
goto error;
- }
+
x->inner_mode = inner_mode;
if (x->props.family == AF_INET)
if (inner_mode_iaf) {
if (inner_mode_iaf->flags & XFRM_MODE_FLAG_TUNNEL)
x->inner_mode_iaf = inner_mode_iaf;
- else
- xfrm_put_mode(inner_mode_iaf);
}
}
CONFIG_IPV6=y
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_VETH=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_NET_IPVTI=y
-CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_IPV6_VTI=y
CONFIG_DUMMY=y
CONFIG_BRIDGE=y
projects / linux-2.6-microblaze.git / commitdiff