haddr : 用于存放从接收的数据包中提取的硬件地址; 1inteth_header_parse(structsk_buff *skb, u8 *haddr)2{3structethhdr *eth =eth_hdr(skb);4memcpy (haddr, eth->h_source, ETH_ALEN);//可知haddr中存放的是源MAC地址;5returnETH_ALEN;6} 7、在struct ethhdr中MAC地址为6个字节,并不是我们常见的...
vlan->vlan_proto = proto; vlan->vlan_id = nla_get_u16(data[IFLA_VLAN_ID]); vlan->real_dev = real_dev; dev->priv_flags |= (real_dev->priv_flags & IFF_XMIT_DST_RELEASE); vlan->flags = VLAN_FLAG_REORDER_HDR; err = vlan_check_real_dev(real_dev, vlan->vlan_proto, vlan->vl...
u_int16_t vlanId; } EthSerial; typedef struct _ipSerial { HostAddr ipAddress; u_int16_t vlanId; } IpSerial; typedef struct hostSerial { u_int8_t serialType; /* 0 == empty */ union { EthSerial ethSerial; /* hostSerial == SERIAL_MAC */ IpSerial ipSerial; /* hostSerial ==...
mbuf对应的物理地址,一般mbuf物理地址在初始化mempool的时候就设置了,在mbuf对应obj的head里面存放,如下结构体的objhdr里面的iova/physaddr structrte_mempool_objhdr { STAILQ_ENTRY(rte_mempool_objhdr) next;/**< Next in list.*/structrte_mempool *mp;/**< The mempool owning the object.*/RTE_STD_C11...
/*mac_len:数据链路层地址长度,hdr_len:克隆的skb可写头部的长度*/ __u16 mac_len, hdr_len; union{ __wsum csum; struct{ __u16 csum_start; __u16 csum_offset; }; }; /*包的排队优先级*/ __u32 priority; kmemcheck_bitfield_begin(flags1); ...
.split_hdr_size=0, .header_split=0,/**< Header Split disabled*/.hw_ip_checksum=0,/**<IP checksum offload enabled*/.hw_vlan_filter=0,/**<VLAN filtering disabled*/.jumbo_frame=0,/**<Jumbo Frame Support disabled*/.hw_strip_crc=0,/**<CRC strip by hardware*/}, ...
vlan->vlan_proto = proto; vlan->vlan_id = nla_get_u16(data[IFLA_VLAN_ID]); vlan->real_dev = real_dev; dev->priv_flags |= (real_dev->priv_flags & IFF_XMIT_DST_RELEASE); vlan->flags = VLAN_FLAG_REORDER_HDR; err = vlan_check_real_dev(real_dev, vlan->vlan_proto, vlan->vl...
{13structsk_buff *next;14structsk_buff *prev;15structsock *sock ;//struct sock是socket在网络层的表示,其中存放了网络层的信息1617unsignedintlen;//下面有介绍18unsignedintdata_len;//下面有介绍19__u16 mac_len ;//数路链路层的头长度20__u16 hdr_len ;//writable header length of cloned skb21...
.split_hdr_size=0, .header_split=0,/**< Header Split disabled*/.hw_ip_checksum=0,/**<IP checksum offload enabled*/.hw_vlan_filter=0,/**<VLAN filtering disabled*/.jumbo_frame=0,/**<Jumbo Frame Support disabled*/.hw_strip_crc=0,/**<CRC strip by hardware*/}, ...