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/* Please avoid adding hacks here - instead add it to mac80211/backports.git */
#undef CONFIG_MODULE_STRIPPED
#include <linux/version.h> /* LINUX_VERSION_CODE */
#include <linux/types.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0)
#define dev_get_iflink(_net_dev) ((_net_dev)->iflink)
#endif /* < KERNEL_VERSION(4, 1, 0) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)
#include <linux/netdevice.h>
#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info) ({\
BUILD_BUG_ON(upper_priv != NULL); \
BUILD_BUG_ON(upper_info != NULL); \
netdev_set_master(dev, upper_dev); \
})
#elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
#include <linux/netdevice.h>
#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info) ({\
BUILD_BUG_ON(upper_priv != NULL); \
BUILD_BUG_ON(upper_info != NULL); \
netdev_master_upper_dev_link(dev, upper_dev); \
})
#endif /* < KERNEL_VERSION(4, 5, 0) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)
struct sk_buff *skb_checksum_trimmed(struct sk_buff *skb,
unsigned int transport_len,
__sum16(*skb_chkf)(struct sk_buff *skb));
int ip_mc_check_igmp(struct sk_buff *skb, struct sk_buff **skb_trimmed);
int ipv6_mc_check_mld(struct sk_buff *skb, struct sk_buff **skb_trimmed);
#endif /* < KERNEL_VERSION(4, 2, 0) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
#define IFF_NO_QUEUE 0; dev->tx_queue_len = 0
#endif /* < KERNEL_VERSION(4, 3, 0) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
#include <linux/ethtool.h>
#define ethtool_link_ksettings batadv_ethtool_link_ksettings
struct batadv_ethtool_link_ksettings {
struct {
__u32 speed;
__u8 duplex;
} base;
};
#define __ethtool_get_link_ksettings(__dev, __link_settings) \
batadv_ethtool_get_link_ksettings(__dev, __link_settings)
static inline int
batadv_ethtool_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
struct ethtool_cmd cmd;
int ret;
memset(&cmd, 0, sizeof(cmd));
ret = __ethtool_get_settings(dev, &cmd);
if (ret != 0)
return ret;
link_ksettings->base.duplex = cmd.duplex;
link_ksettings->base.speed = ethtool_cmd_speed(&cmd);
return 0;
}
#endif /* < KERNEL_VERSION(4, 6, 0) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
#define netif_trans_update batadv_netif_trans_update
static inline void batadv_netif_trans_update(struct net_device *dev)
{
dev->trans_start = jiffies;
}
#endif /* < KERNEL_VERSION(4, 7, 0) */
#include_next <linux/netlink.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
#include_next <net/netlink.h>
static inline bool batadv_nla_need_padding_for_64bit(struct sk_buff *skb);
static inline int batadv_nla_align_64bit(struct sk_buff *skb, int padattr)
{
if (batadv_nla_need_padding_for_64bit(skb) &&
!nla_reserve(skb, padattr, 0))
return -EMSGSIZE;
return 0;
}
static inline struct nlattr *batadv__nla_reserve_64bit(struct sk_buff *skb,
int attrtype,
int attrlen, int padattr)
{
if (batadv_nla_need_padding_for_64bit(skb))
batadv_nla_align_64bit(skb, padattr);
return __nla_reserve(skb, attrtype, attrlen);
}
static inline void batadv__nla_put_64bit(struct sk_buff *skb, int attrtype,
int attrlen, const void *data,
int padattr)
{
struct nlattr *nla;
nla = batadv__nla_reserve_64bit(skb, attrtype, attrlen, padattr);
memcpy(nla_data(nla), data, attrlen);
}
static inline bool batadv_nla_need_padding_for_64bit(struct sk_buff *skb)
{
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
/* The nlattr header is 4 bytes in size, that's why we test
* if the skb->data _is_ aligned. A NOP attribute, plus
* nlattr header for next attribute, will make nla_data()
* 8-byte aligned.
*/
if (IS_ALIGNED((unsigned long)skb_tail_pointer(skb), 8))
return true;
#endif
return false;
}
static inline int batadv_nla_total_size_64bit(int payload)
{
return NLA_ALIGN(nla_attr_size(payload))
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ NLA_ALIGN(nla_attr_size(0))
#endif
;
}
static inline int batadv_nla_put_64bit(struct sk_buff *skb, int attrtype,
int attrlen, const void *data,
int padattr)
{
size_t len;
if (batadv_nla_need_padding_for_64bit(skb))
len = batadv_nla_total_size_64bit(attrlen);
else
len = nla_total_size(attrlen);
if (unlikely(skb_tailroom(skb) < len))
return -EMSGSIZE;
batadv__nla_put_64bit(skb, attrtype, attrlen, data, padattr);
return 0;
}
#define nla_put_u64_64bit(_skb, _attrtype, _value, _padattr) \
batadv_nla_put_u64_64bit(_skb, _attrtype, _value, _padattr)
static inline int batadv_nla_put_u64_64bit(struct sk_buff *skb, int attrtype,
u64 value, int padattr)
{
return batadv_nla_put_64bit(skb, attrtype, sizeof(u64), &value,
padattr);
}
#endif /* < KERNEL_VERSION(4, 7, 0) */
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