1/*2* These are the defined Ethernet Protocol ID's.3*/45#defineETH_P_LOOP 0x0060 /* Ethernet Loopback packet */6#defineETH_P_PUP 0x0200 /* Xerox PUP packet */7#defineETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */8#defineETH_P_TSN 0x22F0 /* TSN (IEEE 1722) packet ...
u_int8_t tcpi_probes; u_int8_t tcpi_backoff; u_int8_t tcpi_options; u_int8_t tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4; u_int32_t tcpi_rto; u_int32_t tcpi_ato; u_int32_t tcpi_snd_mss; u_int32_t tcpi_rcv_mss; u_int32_t tcpi_unacked; u_int32_t tcpi_...
8. const struct tcphdr *th = tcp_hdr(skb); 9. int length = (th->doff * 4) - sizeof(struct tcphdr); /* 选项的总长度 */ 10. ptr = (const unsigned char *) (th + 1); /* 选项的起始地址 */ 11. opt_rx->saw_tstamp = 0; /* Saw TIMESTAMP on last packet */ 12. whil...
uint16_tmax_rx_pkt_len;/**< Stop receiving after size of this packet is received. */ uint16_tsplit_hdr_size;/**< Split header, e.g. for VLAN header. */ uint16_tnb_queues;/**< Number of receive queues. */ uint8_tenable_lro;/**< Enable LRO (Large Receive Offload). */ uint...
hdr_len;//writable header length of cloned skbunsignedinttruesize;//socket buffer(套接字缓存区的大小)atomic_t users;//对当前的struct sk_buff结构体的引用次数;__u32 priority;//这个struct sk_buff结构体的优先级sk_buff_data_t transport_header;//传输层头部的偏移量sk_buff_data_t network_...
static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) { /* 这里就是上文提到的vlan_tci的填充,这些信息都归属于子设备本身 */ if (veth->h_vlan_proto != vlan->vlan_proto || vlan->flags & VLAN_FLAG_REORDER_HDR) { ...
uint32_tpacket_type;/**< L2/L3/L4 and tunnel information. */ __extension__ struct{ uint8_tl2_type:4;/**< (Outer) L2 type. */ uint8_tl3_type:4;/**< (Outer) L3 type. */ uint8_tl4_type:4;/**< (Outer) L4 type. */ ...
struct sk_buff *nfct_reasm; #endif #ifdef CONFIG_BRIDGE_NETFILTER struct nf_bridge_info *nf_bridge; #endif __u32 nfmark; #endif /* CONFIG_NETFILTER */ 这些变量被netfilter使用(防火墙代码),内核编译选项是“Device Drivers->Networking support-> Networking options-> Network packet filtering”和两...
pppoe_hdr { ifdef CFG_LITTLEENDIAN u_int8_t ver :4; u_int8_t type : 4; # u_int8_t type: 4; u_int8_t ver 4; # u_int8_t code u_int16_t sid; _int16_ length; structpppoe_tag tag; }; #endif typedefstruct _mac_t { u_int_ mact_octet6]; } ...
maxdelayAVPacketAVPacket定义在avcodec 如下typedefstructAVPacket AVStream 基time base单位介绍时间戳的时间 解压缩包将被提交给用户。 可AV NOPTS VALUE如果没有存储在文件中。 分必须大于或等于DTS作为演示不能发生之前