making wireguard work on RHEL7/etc.
wireguard at wut.to
wireguard at wut.to
Mon Jun 26 21:55:02 CEST 2017
I think this might work ...
I was still able to compile on Amazon AMI/4.9.32 Kernel
-------------- next part --------------
diff --git a/src/compat/compat.h b/src/compat/compat.h
index 159abb1..903c9be 100644
--- a/src/compat/compat.h
+++ b/src/compat/compat.h
@@ -7,6 +7,13 @@
#include <linux/version.h>
#include <linux/types.h>
+//#undef LINUX_VERSION_CODE
+//#define LINUX_VERSION_CODE KERNEL_VERSION(3, 18, 0)
+
+#if defined(RHEL_MAJOR) && RHEL_MAJOR <= 7
+#define ISRHEL7
+#endif
+
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
#error "WireGuard requires Linux >= 3.10"
#endif
@@ -15,7 +22,7 @@
#define CONFIG_AS_SSSE3
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)) && !defined(ISRHEL7)
#define headers_start data
#define headers_end data
#endif
@@ -34,13 +41,15 @@
#endif
#if (LINUX_VERSION_CODE > KERNEL_VERSION(3, 19, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 6)) || \
- (LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 12) && LINUX_VERSION_CODE > KERNEL_VERSION(3, 17, 0)) || \
- (LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 8) && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)) || \
- LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 40)
+ (LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 12) && LINUX_VERSION_CODE > KERNEL_VERSION(3, 17, 0)) || \
+ (LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 8) && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)) || \
+ LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 40)
+#if !defined(ISRHEL7)
#define dev_recursion_level() 0
#endif
+#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)) && !defined(ISRHEL7)
#define ipv6_dst_lookup(a, b, c, d) ipv6_dst_lookup(b, c, d)
#endif
@@ -49,21 +58,21 @@
(LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 27) && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 17, 0)) || \
(LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 8) && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)) || \
(LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 40) && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)) || \
- (LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 54))
+ (LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 54) || defined(ISRHEL7))
#include <linux/if.h>
#include <net/ip_tunnels.h>
#define IP6_ECN_set_ce(a, b) IP6_ECN_set_ce(b)
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0)
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0))
#define time_is_before_jiffies64(a) time_after64(get_jiffies_64(), a)
#define time_is_after_jiffies64(a) time_before64(get_jiffies_64(), a)
#define time_is_before_eq_jiffies64(a) time_after_eq64(get_jiffies_64(), a)
#define time_is_after_eq_jiffies64(a) time_before_eq64(get_jiffies_64(), a)
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && IS_ENABLED(CONFIG_IPV6)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && IS_ENABLED(CONFIG_IPV6) && !defined(ISRHEL7)
#include <net/ipv6.h>
struct ipv6_stub_type {
void *udpv6_encap_enable;
@@ -114,17 +123,17 @@ static inline u32 get_random_u32(void)
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(ISRHEL7)
static inline void netif_keep_dst(struct net_device *dev)
{
dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0) && !defined(ISRHEL7)
#define pcpu_sw_netstats pcpu_tstats
#define netdev_alloc_pcpu_stats alloc_percpu
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0)
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0) && !defined(ISRHEL7)
#define netdev_alloc_pcpu_stats(type) \
({ \
typeof(type) __percpu *pcpu_stats = alloc_percpu(type); \
@@ -153,7 +162,7 @@ static inline void *our_pskb_put(struct sk_buff *skb, struct sk_buff *tail, int
#define pskb_put our_pskb_put
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 11, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 11, 0) && !defined(ISRHEL7)
#include <net/xfrm.h>
static inline void skb_scrub_packet(struct sk_buff *skb, bool xnet)
{
@@ -175,7 +184,7 @@ static inline void skb_scrub_packet(struct sk_buff *skb, bool xnet)
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && !defined(ISRHEL7)
#include <linux/random.h>
static inline u32 prandom_u32_max(u32 ep_ro)
{
@@ -183,7 +192,7 @@ static inline u32 prandom_u32_max(u32 ep_ro)
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 75)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 75) && !defined(ISRHEL7)
#define U8_MAX ((u8)~0U)
#define S8_MAX ((s8)(U8_MAX >> 1))
#define S8_MIN ((s8)(-S8_MAX - 1))
@@ -198,7 +207,7 @@ static inline u32 prandom_u32_max(u32 ep_ro)
#define S64_MIN ((s64)(-S64_MAX - 1))
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 60)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 60) && !defined(ISRHEL7)
/* Making this static may very well invalidate its usefulness,
* but so it goes with compat code. */
static inline void memzero_explicit(void *s, size_t count)
@@ -208,7 +217,7 @@ static inline void memzero_explicit(void *s, size_t count)
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && !defined(ISRHEL7)
static const struct in6_addr our_in6addr_any = IN6ADDR_ANY_INIT;
#define in6addr_any our_in6addr_any
#endif
@@ -267,11 +276,11 @@ static inline int get_random_bytes_wait(void *buf, int nbytes)
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 11, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 11, 0) && !defined(ISRHEL7)
#define system_power_efficient_wq system_unbound_wq
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0) && !defined(ISRHEL7)
#include <linux/ktime.h>
static inline u64 ktime_get_ns(void)
{
@@ -339,4 +348,7 @@ static inline struct net_device *netdev_pub(void *dev)
#define net_dbg_skb_ratelimited(fmt, skb, ...)
#endif
+#if defined(ISRHEL7)
+#undef ISRHEL7
+#endif
#endif
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