include/linux/if_ether.h

Source file repositories/reference/linux-study-clean/include/linux/if_ether.h

File Facts

System
Linux kernel
Corpus path
include/linux/if_ether.h
Extension
.h
Size
1401 bytes
Lines
49
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _LINUX_IF_ETHER_H
#define _LINUX_IF_ETHER_H

#include <linux/skbuff.h>
#include <uapi/linux/if_ether.h>

/* XX:XX:XX:XX:XX:XX */
#define MAC_ADDR_STR_LEN (3 * ETH_ALEN - 1)

static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
{
	return (struct ethhdr *)skb_mac_header(skb);
}

/* Prefer this version in TX path, instead of
 * skb_reset_mac_header() + eth_hdr()
 */
static inline struct ethhdr *skb_eth_hdr(const struct sk_buff *skb)
{
	return (struct ethhdr *)skb->data;
}

static inline struct ethhdr *inner_eth_hdr(const struct sk_buff *skb)
{
	return (struct ethhdr *)skb_inner_mac_header(skb);
}

int eth_header_parse(const struct sk_buff *skb, const struct net_device *dev,
		     unsigned char *haddr);

extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);

#endif	/* _LINUX_IF_ETHER_H */

Annotation

Implementation Notes