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authorJoe Stringer <joe@ovn.org>2015-12-24 11:32:38 -0800
committerJoe Stringer <joe@ovn.org>2016-02-02 14:26:46 -0800
commite4e04c3b6bf5209592d2a6db96c7905d2bb9133e (patch)
tree3251f166da720c883ae02e62356d10653900d04f /datapath
parentac9cd0d28a6590136a9f69ad1e3785039b35b39e (diff)
downloadopenvswitch-e4e04c3b6bf5209592d2a6db96c7905d2bb9133e.tar.gz
compat: Detect and use nf_ipv6_ops->fragment.
Signed-off-by: Joe Stringer <joe@ovn.org> Acked-by: Pravin B Shelar <pshelar@ovn.org>
Diffstat (limited to 'datapath')
-rw-r--r--datapath/compat.h5
-rw-r--r--datapath/linux/compat/include/linux/netfilter_ipv6.h6
-rw-r--r--datapath/linux/compat/include/net/ip6_route.h13
-rw-r--r--datapath/linux/compat/ip6_output.c2
4 files changed, 16 insertions, 10 deletions
diff --git a/datapath/compat.h b/datapath/compat.h
index 3cbd121f2..0e19051fb 100644
--- a/datapath/compat.h
+++ b/datapath/compat.h
@@ -55,8 +55,13 @@ static inline bool skb_encapsulation(struct sk_buff *skb)
#endif
#ifdef OVS_FRAGMENT_BACKPORT
+#ifdef HAVE_NF_IPV6_OPS_FRAGMENT
+static inline int __init ip6_output_init(void) { return 0; }
+static inline void ip6_output_exit(void) { }
+#else
int __init ip6_output_init(void);
void ip6_output_exit(void);
+#endif
static inline int __init compat_init(void)
{
diff --git a/datapath/linux/compat/include/linux/netfilter_ipv6.h b/datapath/linux/compat/include/linux/netfilter_ipv6.h
index 3026e1fe6..3939e1423 100644
--- a/datapath/linux/compat/include/linux/netfilter_ipv6.h
+++ b/datapath/linux/compat/include/linux/netfilter_ipv6.h
@@ -7,7 +7,7 @@
#include <net/ip.h> /* For OVS_VPORT_OUTPUT_PARAMS */
#include <net/ip6_route.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,3,0)
+#ifndef HAVE_NF_IPV6_OPS_FRAGMENT
/* Try to minimise changes required to the actions.c code for calling IPv6
* fragmentation. We can keep the fragment() API mostly the same, except that
* the callback parameter needs to be in the form that older kernels accept.
@@ -27,7 +27,7 @@ static inline struct ovs_nf_ipv6_ops *ovs_nf_get_ipv6_ops(void)
{
return &ovs_ipv6_ops;
}
-#else /* !OVS_FRAGMENT_BACKPORT || !CONFIG_NETFILTER || || !CONFIG_IPV6 */
+#else /* !OVS_FRAGMENT_BACKPORT */
static inline const struct ovs_nf_ipv6_ops *ovs_nf_get_ipv6_ops(void)
{
return NULL;
@@ -35,5 +35,5 @@ static inline const struct ovs_nf_ipv6_ops *ovs_nf_get_ipv6_ops(void)
#endif
#define nf_get_ipv6_ops ovs_nf_get_ipv6_ops
-#endif /* < 4.3 */
+#endif /* HAVE_NF_IPV6_OPS_FRAGMENT */
#endif /* __NETFILTER_IPV6_WRAPPER_H */
diff --git a/datapath/linux/compat/include/net/ip6_route.h b/datapath/linux/compat/include/net/ip6_route.h
index ba7dcc58f..16027e47e 100644
--- a/datapath/linux/compat/include/net/ip6_route.h
+++ b/datapath/linux/compat/include/net/ip6_route.h
@@ -30,18 +30,19 @@ struct dst_entry *rpl_ip6_route_output(struct net *net, const struct sock *sk,
#endif /* 2.6.39 */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
+#ifndef HAVE_NF_IPV6_OPS_FRAGMENT
+#ifdef OVS_FRAGMENT_BACKPORT
+int rpl_ip6_fragment(struct sock *sk, struct sk_buff *skb,
+ int (*output)(OVS_VPORT_OUTPUT_PARAMS));
+#else
static inline int rpl_ip6_fragment(struct sock *sk, struct sk_buff *skb,
int (*output)(struct sk_buff *))
{
kfree_skb(skb);
return -ENOTSUPP;
}
-#define ip6_fragment rpl_ip6_fragment
-#elif defined(OVS_FRAGMENT_BACKPORT)
-int rpl_ip6_fragment(struct sock *sk, struct sk_buff *skb,
- int (*output)(OVS_VPORT_OUTPUT_PARAMS));
-#define ip6_fragment rpl_ip6_fragment
#endif /* OVS_FRAGMENT_BACKPORT */
+#define ip6_fragment rpl_ip6_fragment
+#endif /* HAVE_NF_IPV6_OPS_FRAGMENT */
#endif /* _NET_IP6_ROUTE_WRAPPER */
diff --git a/datapath/linux/compat/ip6_output.c b/datapath/linux/compat/ip6_output.c
index 5c0cdec4b..c3ef46c4a 100644
--- a/datapath/linux/compat/ip6_output.c
+++ b/datapath/linux/compat/ip6_output.c
@@ -31,7 +31,7 @@
#include <linux/version.h>
-#ifdef OVS_FRAGMENT_BACKPORT
+#if !defined(HAVE_NF_IPV6_OPS_FRAGMENT) && defined(OVS_FRAGMENT_BACKPORT)
#include <linux/errno.h>
#include <linux/kernel.h>