diff options
Diffstat (limited to 'src/compat.h')
| -rw-r--r-- | src/compat.h | 101 |
1 files changed, 96 insertions, 5 deletions
diff --git a/src/compat.h b/src/compat.h index 5a49655..29bd8c4 100644 --- a/src/compat.h +++ b/src/compat.h @@ -6,7 +6,6 @@ #include <linux/kconfig.h> #include <linux/version.h> #include <linux/types.h> -#include <linux/netdevice.h> #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0) #error "WireGuard requires Linux >= 4.1" @@ -25,17 +24,109 @@ #define RCU_LOCKDEP_WARN(cond, message) rcu_lockdep_assert(!(cond), message) #endif -/* https://lkml.org/lkml/2016/9/28/904 - * 64-bit jiffy functions like in include/linux/jiffies.h */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0) +#include <linux/if.h> +#include <net/udp_tunnel.h> +#define udp_tunnel_xmit_skb(a, b, c, d, e, f, g, h, i, j, k, l) do { int ret = udp_tunnel_xmit_skb(a, b, c, d, e, f, g, h, i, j, k, l); iptunnel_xmit_stats(ret, &dev->stats, dev->tstats); } while (0) +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0) && IS_ENABLED(CONFIG_IPV6) +#include <linux/if.h> +#include <net/udp_tunnel.h> +#define udp_tunnel6_xmit_skb(a, b, c, d, e, f, g, h, i, j, k, l) udp_tunnel6_xmit_skb(a, b, c, d, e, f, g, h, j, k, l) +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0) +#include <linux/if.h> +#include <net/udp_tunnel.h> +struct udp_port_cfg_new { + u8 family; + union { + struct in_addr local_ip; +#if IS_ENABLED(CONFIG_IPV6) + struct in6_addr local_ip6; +#endif + }; + union { + struct in_addr peer_ip; +#if IS_ENABLED(CONFIG_IPV6) + struct in6_addr peer_ip6; +#endif + }; + __be16 local_udp_port; + __be16 peer_udp_port; + unsigned int use_udp_checksums:1, use_udp6_tx_checksums:1, use_udp6_rx_checksums:1, ipv6_v6only:1; +}; +__attribute__((unused)) static inline int udp_sock_create_new(struct net *net, struct udp_port_cfg_new *cfg, struct socket **sockp) +{ + struct udp_port_cfg old_cfg = { + .family = cfg->family, + .local_ip = cfg->local_ip, +#if IS_ENABLED(CONFIG_IPV6) + .local_ip6 = cfg->local_ip6, +#endif + .peer_ip = cfg->peer_ip, +#if IS_ENABLED(CONFIG_IPV6) + .peer_ip6 = cfg->peer_ip6, +#endif + .local_udp_port = cfg->local_udp_port, + .peer_udp_port = cfg->peer_udp_port, + .use_udp_checksums = cfg->use_udp_checksums, + .use_udp6_tx_checksums = cfg->use_udp6_tx_checksums, + .use_udp6_rx_checksums = cfg->use_udp6_rx_checksums + }; + if (cfg->family == AF_INET) + return udp_sock_create4(net, &old_cfg, sockp); + +#if IS_ENABLED(CONFIG_IPV6) + if (cfg->family == AF_INET6) { + int ret; + int old_bindv6only; + struct net *nobns; + + if (cfg->ipv6_v6only) { +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0) + nobns = &init_net; +#else + nobns = net; +#endif + /* Since udp_port_cfg only learned of ipv6_v6only in 4.3, we do this horrible + * hack here and set the sysctl variable temporarily to something that will + * set the right option for us in sock_create. It's super racey! */ + old_bindv6only = nobns->ipv6.sysctl.bindv6only; + nobns->ipv6.sysctl.bindv6only = 1; + } + ret = udp_sock_create6(net, &old_cfg, sockp); + if (cfg->ipv6_v6only) + nobns->ipv6.sysctl.bindv6only = old_bindv6only; + return ret; + } +#endif + return -EPFNOSUPPORT; +} +#define udp_port_cfg udp_port_cfg_new +#define udp_sock_create(a, b, c) udp_sock_create_new(a, b, c) +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0) +#define ipv6_dst_lookup(a, b, c, d) ipv6_dst_lookup(b, c, d) +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 5) && LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)) || LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 17) +#define IP6_ECN_set_ce(a, b) IP6_ECN_set_ce(b) +#endif + +/* https://lkml.org/lkml/2016/9/28/904 */ #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) -/* https://lkml.org/lkml/2015/6/12/415 - * Inverse of netdev_priv in include/linux/netdevice.h */ +/* https://lkml.org/lkml/2015/6/12/415 */ +#include <linux/netdevice.h> static inline struct net_device *netdev_pub(void *dev) { return (struct net_device *)((char *)dev - ALIGN(sizeof(struct net_device), NETDEV_ALIGN)); } + #endif |