diff options
Diffstat (limited to 'backport-include/linux/etherdevice.h')
| -rw-r--r-- | backport-include/linux/etherdevice.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/backport-include/linux/etherdevice.h b/backport-include/linux/etherdevice.h new file mode 100644 index 0000000..9baa197 --- /dev/null +++ b/backport-include/linux/etherdevice.h @@ -0,0 +1,128 @@ +#ifndef _BACKPORT_LINUX_ETHERDEVICE_H +#define _BACKPORT_LINUX_ETHERDEVICE_H +#include_next <linux/etherdevice.h> +#include <linux/version.h> +/* + * newer kernels include this already and some + * users rely on getting this indirectly + */ +#include <asm/unaligned.h> + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12) +#define eth_hw_addr_random LINUX_BACKPORT(eth_hw_addr_random) +static inline void eth_hw_addr_random(struct net_device *dev) +{ +#error eth_hw_addr_random() needs to be implemented for < 2.6.12 +} +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31) +#define eth_hw_addr_random LINUX_BACKPORT(eth_hw_addr_random) +static inline void eth_hw_addr_random(struct net_device *dev) +{ + get_random_bytes(dev->dev_addr, ETH_ALEN); + dev->dev_addr[0] &= 0xfe; /* clear multicast bit */ + dev->dev_addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ +} +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) +/* So this is 2.6.31..2.6.35 */ + +/* Just have the flags present, they won't really mean anything though */ +#define NET_ADDR_PERM 0 /* address is permanent (default) */ +#define NET_ADDR_RANDOM 1 /* address is generated randomly */ +#define NET_ADDR_STOLEN 2 /* address is stolen from other device */ + +#define eth_hw_addr_random LINUX_BACKPORT(eth_hw_addr_random) +static inline void eth_hw_addr_random(struct net_device *dev) +{ + random_ether_addr(dev->dev_addr); +} + +#elif LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) +#define eth_hw_addr_random LINUX_BACKPORT(eth_hw_addr_random) +static inline void eth_hw_addr_random(struct net_device *dev) +{ + dev_hw_addr_random(dev, dev->dev_addr); +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) +#include <linux/random.h> +/** + * eth_broadcast_addr - Assign broadcast address + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Assign the broadcast address to the given address array. + */ +static inline void eth_broadcast_addr(u8 *addr) +{ + memset(addr, 0xff, ETH_ALEN); +} + +/** + * eth_random_addr - Generate software assigned random Ethernet address + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Generate a random Ethernet address (MAC) that is not multicast + * and has the local assigned bit set. + */ +static inline void eth_random_addr(u8 *addr) +{ + get_random_bytes(addr, ETH_ALEN); + addr[0] &= 0xfe; /* clear multicast bit */ + addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) + +/* This backports: + * + * commit 6d57e9078e880a3dd232d579f42ac437a8f1ef7b + * Author: Duan Jiong <djduanjiong@gmail.com> + * Date: Sat Sep 8 16:32:28 2012 +0000 + * + * etherdevice: introduce help function eth_zero_addr() + */ +static inline void eth_zero_addr(u8 *addr) +{ + memset(addr, 0x00, ETH_ALEN); +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) +static inline bool ether_addr_equal(const u8 *addr1, const u8 *addr2) +{ + return !compare_ether_addr(addr1, addr2); +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) +#define alloc_etherdev_mqs(sizeof_priv, tx_q, rx_q) alloc_etherdev_mq(sizeof_priv, tx_q) +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) +/** + * is_unicast_ether_addr - Determine if the Ethernet address is unicast + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Return true if the address is a unicast address. + */ +static inline int is_unicast_ether_addr(const u8 *addr) +{ + return !is_multicast_ether_addr(addr); +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29) +#define eth_mac_addr LINUX_BACKPORT(eth_mac_addr) +extern int eth_mac_addr(struct net_device *dev, void *p); +#define eth_change_mtu LINUX_BACKPORT(eth_change_mtu) +extern int eth_change_mtu(struct net_device *dev, int new_mtu); +#define eth_validate_addr LINUX_BACKPORT(eth_validate_addr) +extern int eth_validate_addr(struct net_device *dev); +#endif /* < 2.6.29 */ + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) +#define netdev_hw_addr dev_mc_list +#endif + +#endif /* _BACKPORT_LINUX_ETHERDEVICE_H */ |