{"id":62677,"date":"2026-01-20T14:34:18","date_gmt":"2026-01-20T06:34:18","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62677.html"},"modified":"2026-01-20T14:34:18","modified_gmt":"2026-01-20T06:34:18","slug":"dpdk%e4%b9%8barp%e5%9b%9e%e6%98%be%e4%bb%a3%e7%a0%81%e6%a1%88%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62677.html","title":{"rendered":"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b"},"content":{"rendered":"

\u4e00\u3001dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b<\/span><\/h3>\n

1.arp.c<\/h4>\n

#include <stdio.h>
\n#include <stdlib.h>
\n#include <arpa\/inet.h>
\n#include <netinet\/in.h>
\n#include <stdint.h>
\n#include <stddef.h>
\n#include <string.h><\/p>\n

\/\/ DPDK\u4f7f\u7528\u7684\u5934\u6587\u4ef6
\n#include <rte_eal.h>
\n#include <rte_mbuf.h>
\n#include <rte_ethdev.h>
\n#include <rte_mempool.h>
\n#include <rte_ether.h>
\n#include <rte_ip.h>
\n#include <rte_udp.h>
\n#include <rte_arp.h><\/p>\n

#define ENABLE_ARP 1<\/p>\n

#define NUM_MBUFS (4096 – 1)
\n#define BURST_SIZE 32
\n#define UDP_PAYLOAD "Hello DPDK! This is a response packet."
\n\/\/ \u65b0\u589e：\u5b9a\u4e49\u8d1f\u8f7d\u6253\u5370\u7f13\u51b2\u533a\u5927\u5c0f（\u9632\u6b62\u8d85\u957f\u8d1f\u8f7d\u6ea2\u51fa）
\n#define MAX_PAYLOAD_PRINT 1024<\/p>\n

int gDpdkPortId = 0;
\n\/\/\u5168\u5c40\u53d8\u91cf：\u5b58\u50a8\u5f53\u524d\u7a97\u53e3\u7684MAC\u5730\u5740\u548cIP\u5730\u5740（\u7528\u4e8earp\u54cd\u5e94）
\nstatic struct rte_ether_addr gPortMacAddr;
\nstatic uint32_t gPortIpAddr = 0;<\/p>\n

static const struct rte_eth_conf port_conf_default = {
\n .rxmode = {},
\n .txmode = {}
\n};<\/p>\n

static void ng_init_port(struct rte_mempool *mbuf_pool){
\n uint16_t nb_sys_ports = rte_eth_dev_count_avail();
\n if(nb_sys_ports == 0){
\n rte_exit(EXIT_FAILURE,"No Support eth found\\\\n");
\n }<\/p>\n

struct rte_eth_dev_info dev_info;
\n rte_eth_dev_info_get(gDpdkPortId,&dev_info);<\/p>\n

const int num_rx_queues = 1;
\n const int num_tx_queues = 1;
\n struct rte_eth_conf port_conf = port_conf_default;
\n rte_eth_dev_configure(gDpdkPortId,num_rx_queues,num_tx_queues,&port_conf);<\/p>\n

if(rte_eth_rx_queue_setup(gDpdkPortId,0,512,rte_eth_dev_socket_id(gDpdkPortId),NULL,mbuf_pool) < 0){
\n rte_exit(EXIT_FAILURE,"Could not setup RX queue\\\\n");
\n }<\/p>\n

struct rte_eth_txconf txq_conf = dev_info.default_txconf;
\n if(rte_eth_tx_queue_setup(gDpdkPortId,0,512,rte_eth_dev_socket_id(gDpdkPortId),
\n &txq_conf) < 0){
\n rte_exit(EXIT_FAILURE,"Could not setup TX queue\\\\n");
\n }<\/p>\n

if(rte_eth_dev_start(gDpdkPortId) < 0){
\n rte_exit(EXIT_FAILURE,"Could not start Ethernet port\\\\n");
\n }<\/p>\n

\/\/ \u83b7\u53d6\u5f53\u524d\u7f51\u53e3\u7684MAC\u5730\u5740（DPDK 19.08.2：rte_eth_macaddr_get\u4e3avoid\u7c7b\u578b，\u65e0\u8fd4\u56de\u503c）
\n rte_eth_macaddr_get(gDpdkPortId,&gPortMacAddr);<\/p>\n

\/\/\u8bbe\u7f6e\u5f53\u524d\u7f51\u53e3\u7684ip\u5730\u5740，\u4e5f\u5c31\u662f\u81ea\u5df1\u7f51\u5361ip
\n gPortIpAddr = inet_addr("192.168.3.100");
\n \/\/\u542f\u7528\u6df7\u6742\u6a21\u5f0f
\n rte_eth_promiscuous_enable(gDpdkPortId);<\/p>\n

printf("Port %d initialized successfully, promiscuous mode enabled\\\\n", gDpdkPortId);
\n printf("Port MAC address: %02x:%02x:%02x:%02x:%02x:%02x\\\\n",
\n gPortMacAddr.addr_bytes[0], gPortMacAddr.addr_bytes[1],
\n gPortMacAddr.addr_bytes[2], gPortMacAddr.addr_bytes[3],
\n gPortMacAddr.addr_bytes[4], gPortMacAddr.addr_bytes[5]);
\n printf("Port IP address: %s\\\\n", inet_ntoa(*(struct in_addr *)&gPortIpAddr));
\n}<\/p>\n

static int create_eth_ip_udp(struct rte_mbuf *mbuf,
\n uint8_t *dst_mac, uint8_t *src_mac,
\n uint32_t src_ip, uint32_t dst_ip,
\n uint16_t src_port, uint16_t dst_port,
\n const uint8_t *payload, uint32_t payload_len){
\n if(mbuf == NULL || dst_mac == NULL || src_mac == NULL || payload == NULL || payload_len == 0){
\n printf("Invalid parameters for packet construction\\\\n");
\n return -1;
\n }<\/p>\n

struct rte_ether_hdr *ehdr = NULL;
\n struct rte_ipv4_hdr *iphdr = NULL;
\n struct rte_udp_hdr *udphdr = NULL;
\n uint8_t *udp_payload = NULL;<\/p>\n

const uint32_t eth_hdr_len = sizeof(struct rte_ether_hdr);
\n const uint32_t ip_hdr_len = sizeof(struct rte_ipv4_hdr);
\n const uint32_t udp_hdr_len = sizeof(struct rte_udp_hdr);
\n const uint32_t total_pkt_len = eth_hdr_len + ip_hdr_len + udp_hdr_len + payload_len;<\/p>\n

ehdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ether_hdr *, 0);
\n iphdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv4_hdr *, eth_hdr_len);
\n udphdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_udp_hdr *, eth_hdr_len + ip_hdr_len);
\n udp_payload = rte_pktmbuf_mtod_offset(mbuf, uint8_t *, eth_hdr_len + ip_hdr_len + udp_hdr_len);<\/p>\n

memcpy((uint8_t *)&ehdr->d_addr, dst_mac, RTE_ETHER_ADDR_LEN); \/\/ \u76ee\u6807MAC
\n memcpy((uint8_t *)&ehdr->s_addr, src_mac, RTE_ETHER_ADDR_LEN); \/\/ \u6e90MAC
\n ehdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);<\/p>\n

iphdr->version_ihl = RTE_IPV4_VHL_DEF;
\n iphdr->type_of_service = 0;
\n iphdr->total_length = rte_cpu_to_be_16(ip_hdr_len + udp_hdr_len + payload_len);
\n iphdr->packet_id = 0;
\n iphdr->fragment_offset = 0;
\n iphdr->time_to_live = 64;
\n iphdr->next_proto_id = IPPROTO_UDP;
\n iphdr->src_addr = src_ip;
\n iphdr->dst_addr = dst_ip;
\n iphdr->hdr_checksum = 0;
\n iphdr->hdr_checksum = rte_ipv4_cksum(iphdr);<\/p>\n

udphdr->src_port = rte_cpu_to_be_16(src_port);
\n udphdr->dst_port = rte_cpu_to_be_16(dst_port);
\n udphdr->dgram_len = rte_cpu_to_be_16(udp_hdr_len + payload_len);
\n udphdr->dgram_cksum = 0;<\/p>\n

memcpy(udp_payload, payload, payload_len);<\/p>\n

mbuf->pkt_len = total_pkt_len;
\n mbuf->data_len = total_pkt_len;<\/p>\n

return 0;
\n}<\/p>\n

static int send_udp_response(struct rte_mempool *mbuf_pool,
\n struct rte_ether_hdr *recv_ehdr,
\n struct rte_ipv4_hdr *recv_iphdr,
\n struct rte_udp_hdr *recv_udphdr){
\n struct rte_mbuf *tx_mbuf = rte_pktmbuf_alloc(mbuf_pool);
\n if(tx_mbuf == NULL){
\n printf("Failed to allocate mbuf for TX packet\\\\n");
\n return -1;
\n }<\/p>\n

uint8_t src_mac[RTE_ETHER_ADDR_LEN] = {0};
\n uint8_t dst_mac[RTE_ETHER_ADDR_LEN] = {0};<\/p>\n

memcpy(src_mac, (uint8_t *)&recv_ehdr->d_addr, RTE_ETHER_ADDR_LEN);
\n memcpy(dst_mac, (uint8_t *)&recv_ehdr->s_addr, RTE_ETHER_ADDR_LEN);<\/p>\n

uint32_t src_ip = recv_iphdr->dst_addr;
\n uint32_t dst_ip = recv_iphdr->src_addr;<\/p>\n

uint16_t src_port = ntohs(recv_udphdr->dst_port);
\n uint16_t dst_port = ntohs(recv_udphdr->src_port);<\/p>\n

const uint8_t *payload = (const uint8_t *)UDP_PAYLOAD;
\n uint32_t payload_len = strlen(UDP_PAYLOAD);<\/p>\n

if(create_eth_ip_udp(tx_mbuf,dst_mac,src_mac,src_ip,dst_ip,src_port,dst_port,
\n payload,payload_len) < 0){
\n rte_pktmbuf_free(tx_mbuf);
\n return -1;
\n }<\/p>\n

struct rte_mbuf *tx_mbufs[1] = {tx_mbuf};
\n uint16_t num_sent = rte_eth_tx_burst(gDpdkPortId,0,tx_mbufs,1);<\/p>\n

if(num_sent < 1){
\n printf("Failed to send response packet, num_sent: %u\\\\n", num_sent);
\n rte_pktmbuf_free(tx_mbuf);
\n return -1;
\n }<\/p>\n

struct in_addr src_addr, dst_addr;
\n src_addr.s_addr = src_ip;
\n dst_addr.s_addr = dst_ip;
\n printf("Response sent: %s:%d -> %s:%d, payload: %s\\\\n",
\n inet_ntoa(src_addr), src_port,
\n inet_ntoa(dst_addr), dst_port,
\n UDP_PAYLOAD);<\/p>\n

return 0;
\n}<\/p>\n

#if ENABLE_ARP<\/p>\n

\/\/arp\u6570\u636e\u5185\u5b58\u7f13\u51b2\u533a\u8d77\u59cb\u6307\u9488 \u76ee\u7684MAC\u5730\u5740 \u53d1\u9001\u65b9ip \u76ee\u7684ip ARP\u64cd\u4f5c\u7801（arp\u5305\u7684\u7c7b\u578b） \u53d1\u9001\u65b9\u7684MAC\u5730\u5740\u7ed3\u6784\u4f53\u6307\u9488
\nstatic int ng_encode_arp_pkt(uint8_t *msg, uint8_t *dst_mac, uint32_t sip, uint32_t dip,
\n uint16_t arp_opcode, struct rte_ether_addr *src_eth_addr) {
\n if (msg == NULL || dst_mac == NULL || src_eth_addr == NULL) {
\n printf("Invalid parameters for ARP packet encoding\\\\n");
\n return -1;
\n }<\/p>\n

struct rte_ether_hdr *ehdr = (struct rte_ether_hdr *)msg;
\n struct rte_arp_hdr *ahdr = (struct rte_arp_hdr *)(msg + sizeof(struct rte_ether_hdr));<\/p>\n

\/\/1. \u586b\u5145\u4ee5\u592a\u7f51\u5934\u90e8
\n memcpy((uint8_t *)&ehdr->d_addr, dst_mac, RTE_ETHER_ADDR_LEN); \/\/ \u76ee\u6807MAC
\n memcpy((uint8_t *)&ehdr->s_addr, src_eth_addr, RTE_ETHER_ADDR_LEN); \/\/ \u6e90MAC（\u7f51\u53e3MAC）
\n ehdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP);<\/p>\n

\/\/2. \u586b\u5145arp\u5934\u90e8（\u7cbe\u51c6\u9002\u914d DPDK 19.08.2 \u771f\u5b9e\u5b57\u6bb5\u540d，\u6765\u81ea\u547d\u4ee4\u884c\u67e5\u8be2\u7ed3\u679c）
\n ahdr->arp_hardware = rte_cpu_to_be_16(RTE_ARP_HRD_ETHER); \/\/ \u786c\u4ef6\u7c7b\u578b：\u4ee5\u592a\u7f51
\n ahdr->arp_protocol = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4); \/\/ \u534f\u8bae\u7c7b\u578b：IPv4
\n ahdr->arp_hlen = RTE_ETHER_ADDR_LEN; \/\/ \u786c\u4ef6\u5730\u5740\u957f\u5ea6
\n ahdr->arp_plen = sizeof(uint32_t); \/\/ \u534f\u8bae\u5730\u5740\u957f\u5ea6
\n ahdr->arp_opcode = rte_cpu_to_be_16(arp_opcode); \/\/ ARP\u64cd\u4f5c\u7801：\u8bf7\u6c42\/\u54cd\u5e94<\/p>\n

\/\/ 3. \u586b\u5145ARP\u6570\u636e（\u53d1\u9001\u65b9\u4fe1\u606f）
\n memcpy((uint8_t *)&ahdr->arp_data.arp_sha, src_eth_addr, RTE_ETHER_ADDR_LEN); \/\/ \u53d1\u9001\u65b9MAC
\n ahdr->arp_data.arp_sip = sip; \/\/ \u53d1\u9001\u65b9IP（\u7f51\u53e3IP）<\/p>\n

\/\/ 4. \u586b\u5145ARP\u6570\u636e（\u76ee\u6807\u65b9\u4fe1\u606f）
\n memcpy((uint8_t *)&ahdr->arp_data.arp_tha, dst_mac, RTE_ETHER_ADDR_LEN); \/\/ \u76ee\u6807\u65b9MAC
\n ahdr->arp_data.arp_tip = dip; \/\/ \u76ee\u6807\u65b9IP<\/p>\n

return 0;
\n}<\/p>\n

\/\/\u6784\u5efa\u5e76\u8fd4\u56deARP\u54cd\u5e94\u6570\u636e\u5305
\nstatic struct rte_mbuf *send_arp_response(struct rte_mempool *mbuf_pool,
\n struct rte_arp_hdr *recv_ahdr,
\n struct rte_ether_hdr *recv_ehdr) {
\n if (mbuf_pool == NULL || recv_ahdr == NULL || recv_ehdr == NULL) {
\n printf("Invalid parameters for ARP response creation\\\\n");
\n return NULL;
\n }<\/p>\n

\/\/1. \u8ba1\u7b97ARP\u6570\u636e\u5305\u7684\u603b\u957f\u5ea6
\n const unsigned total_length = sizeof(struct rte_ether_hdr) + sizeof(struct rte_arp_hdr);<\/p>\n

\/\/2. \u5206\u914dmbuf\u7f13\u51b2\u533a
\n struct rte_mbuf *mbuf = rte_pktmbuf_alloc(mbuf_pool);
\n if (!mbuf) {
\n printf("Failed to allocate mbuf for ARP response\\\\n");
\n return NULL;
\n }<\/p>\n

\/\/ 3. \u521d\u59cb\u5316mbuf\u957f\u5ea6\u4fe1\u606f
\n mbuf->pkt_len = total_length;
\n mbuf->data_len = total_length;<\/p>\n

\/\/4. \u83b7\u53d6mbuf\u6570\u636e\u6307\u9488
\n uint8_t *pkt_data = rte_pktmbuf_mtod(mbuf,uint8_t *);
\n if (pkt_data == NULL) {
\n printf("Failed to get mbuf data pointer for ARP response\\\\n");
\n rte_pktmbuf_free(mbuf);
\n return NULL;
\n }<\/p>\n

\/\/ 5. \u63d0\u53d6\u63a5\u6536\u7684ARP\u8bf7\u6c42\u4e2d\u7684\u5173\u952e\u4fe1\u606f
\n uint8_t dst_mac[RTE_ETHER_ADDR_LEN] = {0};
\n memcpy(dst_mac, (uint8_t *)&recv_ehdr->s_addr, RTE_ETHER_ADDR_LEN); \/\/ \u76ee\u6807MAC：\u8bf7\u6c42\u65b9MAC
\n uint32_t src_ip = gPortIpAddr; \/\/ \u6e90IP：\u5f53\u524d\u7f51\u53e3IP
\n uint32_t dst_ip = recv_ahdr->arp_data.arp_sip; \/\/ \u76ee\u6807IP：\u8bf7\u6c42\u65b9IP<\/p>\n

\/\/ 6. \u7f16\u7801ARP\u54cd\u5e94\u6570\u636e\u5305（\u64cd\u4f5c\u7801：ARP\u54cd\u5e94）
\n if (ng_encode_arp_pkt(pkt_data, dst_mac, src_ip, dst_ip,
\n RTE_ARP_OP_REPLY, &gPortMacAddr) < 0) {
\n printf("Failed to encode ARP response packet\\\\n");
\n rte_pktmbuf_free(mbuf);
\n return NULL;
\n }<\/p>\n

\/\/ 7. \u6253\u5370ARP\u54cd\u5e94\u4fe1\u606f
\n struct in_addr src_addr, dst_addr;
\n src_addr.s_addr = src_ip;
\n dst_addr.s_addr = dst_ip;
\n printf("ARP Response prepared: %s (%02x:%02x:%02x:%02x:%02x:%02x) -> %s (%02x:%02x:%02x:%02x:%02x:%02x)\\\\n",
\n inet_ntoa(src_addr), gPortMacAddr.addr_bytes[0], gPortMacAddr.addr_bytes[1],
\n gPortMacAddr.addr_bytes[2], gPortMacAddr.addr_bytes[3],
\n gPortMacAddr.addr_bytes[4], gPortMacAddr.addr_bytes[5],
\n inet_ntoa(dst_addr), dst_mac[0], dst_mac[1], dst_mac[2],
\n dst_mac[3], dst_mac[4], dst_mac[5]);<\/p>\n

return mbuf;
\n}<\/p>\n

#endif<\/p>\n

int main(int argc,char *argv[]){
\n int ret = rte_eal_init(argc,argv);
\n if(ret < 0){
\n fprintf(stderr, "DPDK EAL\u521d\u59cb\u5316\u5931\u8d25！\u9519\u8bef\u7801：%d\\\\n", ret);
\n rte_exit(EXIT_FAILURE,"EAL init error!");
\n }<\/p>\n

argc -= ret;
\n argv += ret;<\/p>\n

struct rte_mempool *mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",NUM_MBUFS,0,0,
\n RTE_MBUF_DEFAULT_BUF_SIZE,rte_socket_id());
\n if(mbuf_pool == NULL){
\n rte_exit(EXIT_FAILURE,"mbuf pool create error!");
\n }
\n printf("mbuf pool created successfully\\\\n");<\/p>\n

ng_init_port(mbuf_pool);<\/p>\n

while(1){
\n struct rte_mbuf *mbufs[BURST_SIZE];<\/p>\n

unsigned num_recv = rte_eth_rx_burst(gDpdkPortId,0,mbufs,BURST_SIZE);
\n if(num_recv > BURST_SIZE){
\n rte_exit(EXIT_FAILURE,"Invalid number of received packets");
\n }<\/p>\n

for(unsigned int i = 0;i < num_recv;i++){
\n int need_process = 1;
\n struct rte_ether_hdr *ehdr = NULL;
\n struct rte_ipv4_hdr *iphdr = NULL;
\n struct rte_udp_hdr *udphdr = NULL;
\n uint8_t *recv_payload = NULL; \/\/ \u65b0\u589e：\u63a5\u6536\u8d1f\u8f7d\u6307\u9488
\n uint32_t recv_payload_len = 0; \/\/ \u65b0\u589e：\u63a5\u6536\u8d1f\u8f7d\u957f\u5ea6
\n char payload_buf[MAX_PAYLOAD_PRINT] = {0}; \/\/ \u65b0\u589e：\u8d1f\u8f7d\u6253\u5370\u7f13\u51b2\u533a<\/p>\n

ehdr = rte_pktmbuf_mtod(mbufs[i],struct rte_ether_hdr *);<\/p>\n

#if ENABLE_ARP
\n \/\/ \u8865\u5168：\u89e3\u6790ARP\u6570\u636e\u5305（\u4ec5\u5904\u7406ARP\u8bf7\u6c42，\u7cbe\u51c6\u9002\u914d DPDK 19.08.2 \u771f\u5b9e\u5b57\u6bb5）
\n if(ehdr->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_ARP)){
\n struct rte_arp_hdr *ahdr = rte_pktmbuf_mtod_offset(mbufs[i],struct rte_arp_hdr *,
\n sizeof(struct rte_ether_hdr));<\/p>\n

\/\/ \u9a8c\u8bc1ARP\u7c7b\u578b\u548c\u64cd\u4f5c\u7801（\u4ec5\u5904\u7406IPv4 ARP\u8bf7\u6c42，\u4f7f\u7528\u67e5\u8be2\u5230\u7684\u6b63\u786e\u5b57\u6bb5）
\n if (rte_cpu_to_be_16(RTE_ARP_HRD_ETHER) == ahdr->arp_hardware &&
\n rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4) == ahdr->arp_protocol &&
\n rte_cpu_to_be_16(RTE_ARP_OP_REQUEST) == ahdr->arp_opcode &&
\n ahdr->arp_data.arp_tip == gPortIpAddr) { \/\/ \u76ee\u6807IP\u662f\u5f53\u524d\u7f51\u53e3IP<\/p>\n

\/\/\u6784\u5efaARP\u54cd\u5e94\u6570\u636e\u5305
\n struct rte_mbuf *arp_mbuf = send_arp_response(mbuf_pool,ahdr,ehdr);
\n if(arp_mbuf != NULL){
\n \/\/ \u53d1\u9001ARP\u54cd\u5e94（\u6b63\u786eAPI：rte_eth_tx_burst）
\n uint16_t num_sent = rte_eth_tx_burst(gDpdkPortId, 0, &arp_mbuf, 1);
\n if (num_sent < 1) {
\n printf("Failed to send ARP response, num_sent: %u\\\\n", num_sent);
\n rte_pktmbuf_free(arp_mbuf);
\n }
\n }
\n }<\/p>\n

need_process = 0; \/\/ ARP\u5305\u5904\u7406\u5b8c\u6210，\u65e0\u9700\u540e\u7eedUDP\u5904\u7406
\n }
\n#endif
\n if(ehdr->ether_type != rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)){
\n need_process = 0;
\n }<\/p>\n

if(need_process){
\n iphdr = rte_pktmbuf_mtod_offset(mbufs[i], struct rte_ipv4_hdr *,
\n sizeof(struct rte_ether_hdr));
\n if(iphdr == NULL || iphdr->next_proto_id != IPPROTO_UDP){
\n need_process = 0;
\n }
\n }<\/p>\n

if(need_process){
\n udphdr = rte_pktmbuf_mtod_offset(mbufs[i], struct rte_udp_hdr *,
\n sizeof(struct rte_ether_hdr) + sizeof(struct rte_ipv4_hdr));
\n if(udphdr == NULL){
\n need_process = 0;
\n } else {
\n \/\/ \u65b0\u589e：\u8ba1\u7b97UDP\u8d1f\u8f7d\u8d77\u59cb\u5730\u5740\u548c\u957f\u5ea6
\n const uint32_t hdr_total_len = sizeof(struct rte_ether_hdr) +
\n sizeof(struct rte_ipv4_hdr) +
\n sizeof(struct rte_udp_hdr);
\n \/\/ 1. \u83b7\u53d6\u8d1f\u8f7d\u8d77\u59cb\u5730\u5740
\n recv_payload = rte_pktmbuf_mtod_offset(mbufs[i], uint8_t *, hdr_total_len);
\n \/\/ 2. \u8ba1\u7b97\u8d1f\u8f7d\u957f\u5ea6（\u7f51\u7edc\u5b57\u8282\u5e8f\u8f6c\u4e3b\u673a\u5b57\u8282\u5e8f\u540e，\u51cf\u53bbUDP\u5934\u957f\u5ea6）
\n recv_payload_len = ntohs(udphdr->dgram_len) – sizeof(struct rte_udp_hdr);<\/p>\n

\/\/ 3. \u5b89\u5168\u62f7\u8d1d\u8d1f\u8f7d\u5230\u6253\u5370\u7f13\u51b2\u533a（\u9632\u6b62\u8d85\u957f\u8d1f\u8f7d\u6ea2\u51fa）
\n if(recv_payload_len > 0 && recv_payload != NULL){
\n uint32_t copy_len = (recv_payload_len > MAX_PAYLOAD_PRINT – 1) ?
\n (MAX_PAYLOAD_PRINT – 1) : recv_payload_len;
\n memcpy(payload_buf, recv_payload, copy_len);
\n payload_buf[copy_len] = '\\\\0'; \/\/ \u5b57\u7b26\u4e32\u7ed3\u5c3e\u7b26，\u4fdd\u8bc1\u6b63\u5e38\u6253\u5370
\n }<\/p>\n

\/\/ \u65b0\u589e：\u6253\u5370\u63a5\u6536\u5230\u7684UDP\u8d1f\u8f7d
\n struct in_addr src_addr, dst_addr;
\n src_addr.s_addr = iphdr->src_addr;
\n dst_addr.s_addr = iphdr->dst_addr;
\n printf("Received UDP packet: %s:%d -> %s:%d\\\\n",
\n inet_ntoa(src_addr), ntohs(udphdr->src_port),
\n inet_ntoa(dst_addr), ntohs(udphdr->dst_port));
\n printf("Received UDP payload length: %u bytes\\\\n", recv_payload_len);
\n printf("Received UDP payload content: %s\\\\n",
\n (recv_payload_len > 0) ? payload_buf : "Empty payload");
\n printf("—————————————————-\\\\n");<\/p>\n

send_udp_response(mbuf_pool, ehdr, iphdr, udphdr);
\n }
\n }<\/p>\n

rte_pktmbuf_free(mbufs[i]);
\n }
\n }<\/p>\n

return 0;
\n}<\/p>\n

2. Makefile<\/h4>\n

# SPDX-License-Identifier: BSD-3-Clause
\n# Copyright(c) 2010-2014 Intel Corporation<\/p>\n

# binary name
\nAPP = arp<\/p>\n

# all source are stored in SRCS-y
\nSRCS-y := arp.c<\/p>\n

# Build using pkg-config variables if possible
\nifeq ($(shell pkg-config –exists libdpdk && echo 0),0)<\/p>\n

all: shared
\n.PHONY: shared static
\nshared: build\/$(APP)-shared
\nln -sf $(APP)-shared build\/$(APP)
\nstatic: build\/$(APP)-static
\nln -sf $(APP)-static build\/$(APP)<\/p>\n

PKGCONF=pkg-config –define-prefix<\/p>\n

PC_FILE := $(shell $(PKGCONF) –path libdpdk)
\nCFLAGS += -O3 $(shell $(PKGCONF) –cflags libdpdk)
\nCFLAGS += -DALLOW_EXPERIMENTAL_API
\nLDFLAGS_SHARED = $(shell $(PKGCONF) –libs libdpdk)
\nLDFLAGS_STATIC = -Wl,-Bstatic $(shell $(PKGCONF) –static –libs libdpdk)<\/p>\n

build\/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
\n$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)<\/p>\n

build\/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build
\n$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)<\/p>\n

build:
\n@mkdir -p $@<\/p>\n

.PHONY: clean
\nclean:
\nrm -f build\/$(APP) build\/$(APP)-static build\/$(APP)-shared
\ntest -d build && rmdir -p build || true<\/p>\n

else # Build using legacy build system<\/p>\n

ifeq ($(RTE_SDK),)
\n$(error "Please define RTE_SDK environment variable")
\nendif<\/p>\n

# Default target, detect a build directory, by looking for a path with a .config
\nRTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard $(RTE_SDK)\/*\/.config)))))<\/p>\n

include $(RTE_SDK)\/mk\/rte.vars.mk<\/p>\n

ifneq ($(CONFIG_RTE_EXEC_ENV_LINUX),y)
\n$(error This application can only operate in a linux environment, \\\\
\nplease change the definition of the RTE_TARGET environment variable)
\nendif<\/p>\n

CFLAGS += -O3
\nCFLAGS += -DALLOW_EXPERIMENTAL_API
\nCFLAGS += $(WERROR_FLAGS)<\/p>\n

include $(RTE_SDK)\/mk\/rte.extapp.mk
\nendif <\/p>\n

3.\u4ee3\u7801\u8bb2\u89e3<\/h4>\n

\u8fd9\u6bb5\u4ee3\u7801\u662f\u4e00\u4e2a\u652f\u6301 ARP \u534f\u8bae\u54cd\u5e94 + UDP \u6570\u636e\u5305\u56de\u663e\u7684\u8f7b\u91cf\u7ea7 DPDK \u7f51\u7edc\u7a0b\u5e8f，\u76f8\u6bd4\u4e0a\u4e00\u7248\u65b0\u589e\u4e86\u5173\u952e\u7684 ARP \u534f\u8bae\u5904\u7406\u80fd\u529b：<\/p>\n

  • \u521d\u59cb\u5316 DPDK \u73af\u5883\u548c\u7f51\u5361\u540e，\u7a0b\u5e8f\u4ee5\u8f6e\u8be2\u65b9\u5f0f\u6279\u91cf\u63a5\u6536\u7f51\u5361\u6570\u636e\u5305；<\/li>\n
  • \u4f18\u5148\u8bc6\u522b ARP \u6570\u636e\u5305：\u82e5\u6536\u5230\u9488\u5bf9\u672c\u673a IP \u7684 ARP \u8bf7\u6c42，\u6784\u9020\u5e76\u53d1\u9001 ARP \u54cd\u5e94（\u8fd4\u56de\u672c\u673a MAC-IP \u6620\u5c04）；<\/li>\n
  • \u5176\u6b21\u5904\u7406 UDP \u6570\u636e\u5305：\u89e3\u6790 IPv4 UDP \u5305\u7684\u6e90 \/ \u76ee\u5730\u5740\u3001\u7aef\u53e3\u548c\u8d1f\u8f7d，\u6784\u9020\u53cd\u5411\u7684 UDP \u54cd\u5e94\u5305\u5e76\u53d1\u9001；<\/li>\n
  • \u5168\u7a0b\u91c7\u7528 DPDK \u7684 \u201c\u6279\u91cf\u6536\u53d1\u5305 + \u9884\u5206\u914d mbuf \u5185\u5b58\u6c60\u201d \u6a21\u5f0f，\u4fdd\u8bc1\u9ad8\u6027\u80fd，\u9002\u914d DPDK 19.08.2 \u7248\u672c\u3002<\/li>\n

    main() \/\/ \u7a0b\u5e8f\u5165\u53e3
    \n\u251c\u2500\u2500 rte_eal_init() \/\/ 1. \u521d\u59cb\u5316DPDK EAL\u73af\u5883
    \n\u251c\u2500\u2500 rte_pktmbuf_pool_create()\/\/ 2. \u521b\u5efambuf\u5185\u5b58\u6c60（\u5b58\u50a8\u6570\u636e\u5305）
    \n\u251c\u2500\u2500 ng_init_port() \/\/ 3. \u521d\u59cb\u5316\u7f51\u5361\u7aef\u53e3（\u65b0\u589e\u83b7\u53d6\u672c\u673aMAC\/IP）
    \n\u2502 \u251c\u2500\u2500 rte_eth_dev_count_avail() \/\/ \u68c0\u6d4b\u53ef\u7528\u7f51\u5361\u6570\u91cf
    \n\u2502 \u251c\u2500\u2500 rte_eth_dev_info_get() \/\/ \u83b7\u53d6\u7f51\u5361\u8bbe\u5907\u4fe1\u606f
    \n\u2502 \u251c\u2500\u2500 rte_eth_dev_configure() \/\/ \u914d\u7f6e\u7f51\u5361RX\/TX\u961f\u5217\u6570
    \n\u2502 \u251c\u2500\u2500 rte_eth_rx_queue_setup() \/\/ \u521d\u59cb\u5316RX\u961f\u5217
    \n\u2502 \u251c\u2500\u2500 rte_eth_tx_queue_setup() \/\/ \u521d\u59cb\u5316TX\u961f\u5217
    \n\u2502 \u251c\u2500\u2500 rte_eth_dev_start() \/\/ \u542f\u52a8\u7f51\u5361
    \n\u2502 \u251c\u2500\u2500 rte_eth_macaddr_get() \/\/ \u65b0\u589e：\u83b7\u53d6\u7f51\u5361MAC\u5730\u5740
    \n\u2502 \u2514\u2500\u2500 rte_eth_promiscuous_enable() \/\/ \u5f00\u542f\u6df7\u6742\u6a21\u5f0f
    \n\u2514\u2500\u2500 \u65e0\u9650\u5faa\u73af（\u6536\u5305\u5904\u7406）
    \n \u251c\u2500\u2500 rte_eth_rx_burst() \/\/ \u6279\u91cf\u63a5\u6536\u6570\u636e\u5305
    \n \u251c\u2500\u2500 \u6570\u636e\u5305\u7c7b\u578b\u5224\u65ad（ARP\/UDP\u5206\u652f）
    \n \u2502 \u251c\u2500\u2500 ARP\u5206\u652f（\u65b0\u589e）
    \n \u2502 \u2502 \u251c\u2500\u2500 \u89e3\u6790ARP\u5934（rte_arp_hdr）
    \n \u2502 \u2502 \u251c\u2500\u2500 send_arp_response() \/\/ \u6784\u9020ARP\u54cd\u5e94\u5305
    \n \u2502 \u2502 \u2502 \u251c\u2500\u2500 rte_pktmbuf_alloc() \/\/ \u5206\u914dmbuf
    \n \u2502 \u2502 \u2502 \u251c\u2500\u2500 ng_encode_arp_pkt() \/\/ \u7f16\u7801ARP\u6570\u636e\u5305
    \n \u2502 \u2502 \u2502 \u2502 \u251c\u2500\u2500 rte_cpu_to_be_16() \/\/ \u4e3b\u673a\u5e8f\u8f6c\u7f51\u7edc\u5927\u7aef\u5e8f
    \n \u2502 \u2502 \u2502 \u2502 \u2514\u2500\u2500 memcpy() \/\/ \u586b\u5145MAC\/IP\u5b57\u6bb5
    \n \u2502 \u2502 \u2502 \u2514\u2500\u2500 rte_pktmbuf_mtod() \/\/ \u83b7\u53d6mbuf\u6570\u636e\u6307\u9488
    \n \u2502 \u2502 \u251c\u2500\u2500 rte_eth_tx_burst() \/\/ \u53d1\u9001ARP\u54cd\u5e94\u5305
    \n \u2502 \u2502 \u2514\u2500\u2500 rte_pktmbuf_free() \/\/ \u53d1\u9001\u5931\u8d25\u65f6\u91ca\u653embuf
    \n \u2502 \u2514\u2500\u2500 UDP\u5206\u652f（\u539f\u6709）
    \n \u2502 \u251c\u2500\u2500 \u89e3\u6790\u4ee5\u592a\u7f51\/IP\/UDP\u5934
    \n \u2502 \u251c\u2500\u2500 send_udp_response() \/\/ \u6784\u9020UDP\u54cd\u5e94\u5305
    \n \u2502 \u2502 \u251c\u2500\u2500 rte_pktmbuf_alloc() \/\/ \u5206\u914dmbuf
    \n \u2502 \u2502 \u251c\u2500\u2500 create_eth_ip_udp() \/\/ \u7f16\u7801UDP\u6570\u636e\u5305
    \n \u2502 \u2502 \u2502 \u251c\u2500\u2500 rte_pktmbuf_mtod_offset() \/\/ \u83b7\u53d6\u6307\u5b9a\u504f\u79fb\u6307\u9488
    \n \u2502 \u2502 \u2502 \u251c\u2500\u2500 rte_cpu_to_be_16() \/\/ \u4e3b\u673a\u5e8f\u8f6c\u7f51\u7edc\u5927\u7aef\u5e8f
    \n \u2502 \u2502 \u2502 \u2514\u2500\u2500 rte_ipv4_cksum() \/\/ \u8ba1\u7b97IP\u6821\u9a8c\u548c
    \n \u2502 \u2502 \u2514\u2500\u2500 rte_eth_tx_burst() \/\/ \u53d1\u9001UDP\u54cd\u5e94\u5305
    \n \u2502 \u2514\u2500\u2500 rte_pktmbuf_free() \/\/ \u53d1\u9001\u5931\u8d25\u65f6\u91ca\u653embuf
    \n \u2514\u2500\u2500 rte_pktmbuf_free() \/\/ \u91ca\u653e\u63a5\u6536\u7684mbuf <\/p>\n

    \u9636\u6bb5 1：\u521d\u59cb\u5316\u9636\u6bb5（\u7a0b\u5e8f\u542f\u52a8\u65f6）<\/h5>\n

    \u8fd9\u4e00\u9636\u6bb5\u5b8c\u6210 DPDK \u73af\u5883\u3001\u5185\u5b58\u6c60\u3001\u7f51\u5361\u7684\u521d\u59cb\u5316，\u5e76\u4fdd\u5b58\u672c\u673a MAC\/IP（\u4e3a ARP \u54cd\u5e94\u505a\u51c6\u5907）：<\/p>\n

  • EAL \u73af\u5883\u521d\u59cb\u5316\u8c03\u7528rte_eal_init()\u5b8c\u6210 DPDK \u5e95\u5c42\u73af\u5883\u521d\u59cb\u5316（CPU \u7ed1\u5b9a\u3001\u5185\u5b58\u5212\u5206\u3001\u8bbe\u5907\u63a2\u6d4b\u7b49），\u5931\u8d25\u5219\u76f4\u63a5\u9000\u51fa\u3002<\/li>\n
  • mbuf \u5185\u5b58\u6c60\u521b\u5efa\u8c03\u7528rte_pktmbuf_pool_create()\u521b\u5efa 4095 \u4e2a mbuf \u7684\u5185\u5b58\u6c60，\u9884\u5206\u914d\u6570\u636e\u5305\u5b58\u50a8\u7ed3\u6784，\u907f\u514d\u8fd0\u884c\u65f6\u52a8\u6001\u5185\u5b58\u5206\u914d\u3002<\/li>\n
  • \u7f51\u5361\u7aef\u53e3\u521d\u59cb\u5316（ng_init_port \u51fd\u6570）\n
      \n
    • \u68c0\u6d4b\u53ef\u7528\u7f51\u5361\u6570\u91cf，\u65e0\u5219\u9000\u51fa；<\/li>\n
    • \u83b7\u53d6\u7f51\u5361\u8bbe\u5907\u4fe1\u606f，\u914d\u7f6e 1 \u4e2a RX \u961f\u5217 + 1 \u4e2a TX \u961f\u5217；<\/li>\n
    • \u521d\u59cb\u5316 RX\/TX \u961f\u5217\u5e76\u542f\u52a8\u7f51\u5361，\u5f00\u542f\u6df7\u6742\u6a21\u5f0f；<\/li>\n
    • \u65b0\u589e\u5173\u952e\u6b65\u9aa4：\n
        \n
      • \u8c03\u7528rte_eth_macaddr_get()\u83b7\u53d6\u7f51\u5361\u7684 MAC \u5730\u5740，\u5b58\u5165\u5168\u5c40\u53d8\u91cfgPortMacAddr；<\/li>\n
      • \u624b\u52a8\u8bbe\u7f6e\u7f51\u5361 IP \u5730\u5740（192.168.3.100），\u5b58\u5165\u5168\u5c40\u53d8\u91cfgPortIpAddr；<\/li>\n
      • \u6253\u5370\u672c\u673a MAC\/IP，\u65b9\u4fbf\u8c03\u8bd5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
        \u9636\u6bb5 2：\u8fd0\u884c\u9636\u6bb5（\u65e0\u9650\u5faa\u73af\u6536\u53d1\u5305）<\/h5>\n

        \u521d\u59cb\u5316\u5b8c\u6210\u540e，\u7a0b\u5e8f\u8fdb\u5165\u65e0\u9650\u5faa\u73af，\u4f18\u5148\u5904\u7406 ARP \u5305，\u518d\u5904\u7406 UDP \u5305，\u6d41\u7a0b\u5982\u4e0b：<\/p>\n

      • \u6279\u91cf\u6536\u5305\u8c03\u7528rte_eth_rx_burst()\u6279\u91cf\u63a5\u6536\u6570\u636e\u5305（\u6bcf\u6b21\u6700\u591a 32 \u4e2a），\u8fd4\u56de\u5b9e\u9645\u63a5\u6536\u7684\u5305\u6570\u91cf\u3002<\/li>\n
      • \u9010\u4e2a\u5904\u7406\u6570\u636e\u5305\u5bf9\u6bcf\u4e2a\u63a5\u6536\u7684\u6570\u636e\u5305，\u6309 \u201cARP\u2192UDP\u201d \u7684\u4f18\u5148\u7ea7\u5904\u7406：\n
          \n
        • \u6b65\u9aa4 1：\u5224\u65ad\u662f\u5426\u4e3a ARP \u5305（\u65b0\u589e）\u89e3\u6790\u4ee5\u592a\u7f51\u5934（rte_ether_hdr），\u82e5ether_type\u4e3aRTE_ETHER_TYPE_ARP（ARP \u534f\u8bae）：\u2460 \u89e3\u6790 ARP \u5934（rte_arp_hdr），\u9a8c\u8bc1\u662f\u5426\u4e3a \u201cIPv4 ARP \u8bf7\u6c42\u201d \u4e14\u76ee\u6807 IP \u662f\u672c\u673a IP；\u2461 \u8c03\u7528send_arp_response()\u6784\u9020 ARP \u54cd\u5e94\u5305：\n
            \n
          • \u5206\u914d\u65b0\u7684 mbuf，\u8bbe\u7f6e\u5305\u957f\u5ea6；<\/li>\n
          • \u8c03\u7528ng_encode_arp_pkt()\u586b\u5145\u4ee5\u592a\u7f51\u5934（\u6e90 MAC = \u672c\u673a\u3001\u76ee\u7684 MAC = \u8bf7\u6c42\u65b9）\u548c ARP \u5934（\u64cd\u4f5c\u7801 = \u54cd\u5e94\u3001\u53d1\u9001\u65b9 IP\/MAC = \u672c\u673a\u3001\u76ee\u6807\u65b9 IP\/MAC = \u8bf7\u6c42\u65b9）；\u2462 \u8c03\u7528rte_eth_tx_burst()\u53d1\u9001 ARP \u54cd\u5e94\u5305，\u53d1\u9001\u5931\u8d25\u5219\u91ca\u653e mbuf；\u2463 \u6807\u8bb0need_process=0，\u8df3\u8fc7\u540e\u7eed UDP \u5904\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \u6b65\u9aa4 2：\u5224\u65ad\u662f\u5426\u4e3a UDP \u5305（\u539f\u6709）\u82e5\u4e0d\u662f ARP \u5305，\u68c0\u67e5\u662f\u5426\u4e3a IPv4 UDP \u5305：\u2460 \u89e3\u6790\u4ee5\u592a\u7f51\u5934，\u9a8c\u8bc1\u662f\u5426\u4e3a IPv4 \u534f\u8bae；\u2461 \u89e3\u6790 IPv4 \u5934，\u9a8c\u8bc1\u4e0a\u5c42\u534f\u8bae\u662f\u5426\u4e3a UDP；\u2462 \u89e3\u6790 UDP \u5934，\u8ba1\u7b97\u5e76\u6253\u5370 UDP \u8d1f\u8f7d（\u5b89\u5168\u62f7\u8d1d\u5230\u7f13\u51b2\u533a，\u9632\u6b62\u6ea2\u51fa）；\u2463 \u8c03\u7528send_udp_response()\u6784\u9020\u53cd\u5411 UDP \u54cd\u5e94\u5305（\u6e90 \/ \u76ee MAC\/IP\/ \u7aef\u53e3\u4e92\u6362），\u53d1\u9001\u540e\u6253\u5370\u65e5\u5fd7；<\/li>\n
          • \u6b65\u9aa4 3：\u91ca\u653e mbuf\u65e0\u8bba\u662f\u5426\u5904\u7406\u6210\u529f，\u90fd\u8c03\u7528rte_pktmbuf_free()\u91ca\u653e\u63a5\u6536\u7684 mbuf，\u5f52\u8fd8\u5230\u5185\u5b58\u6c60\u590d\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n

            4.\u7f16\u8bd1\u8fd0\u884c<\/h4>\n

            \"\"<\/p>\n

            \u6210\u529f\u6536\u5230\u6570\u636e： \"\"<\/p>\n

            \u540c\u65f6\u5bbf\u4e3b\u673aarp\u8868\u81ea\u52a8\u66f4\u65b0： \"\"<\/p>\n<\/p>\n

            0voice \u00b7 GitHub<\/p>\n","protected":false},"excerpt":{"rendered":"

            \u4e00\u3001dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b
            \n1.arp.c
            \n#include
            \n#include
            \n#include
            \n#include
            \n#include
            \n#include
            \n#include \/\/ DPDK\u4f7f\u7528\u7684\u5934\u6587\u4ef6
            \n#include
            \n#include
            \n#include <r<\/p>\n","protected":false},"author":2,"featured_media":62674,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[332,58,103,78,191],"topic":[],"class_list":["post-62677","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-ip","tag-linux","tag-ubuntu","tag-78","tag-191"],"yoast_head":"\ndpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/62677.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u4e00\u3001dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b 1.arp.c #include #include #include #include #include #include #include \/\/ DPDK\u4f7f\u7528\u7684\u5934\u6587\u4ef6 #include #include #include <r\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/62677.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-20T06:34:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260120063414-696f21e6bae57.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/62677.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/62677.html\",\"name\":\"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-01-20T06:34:18+00:00\",\"dateModified\":\"2026-01-20T06:34:18+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/62677.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/62677.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/62677.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/62677.html","og_locale":"zh_CN","og_type":"article","og_title":"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u4e00\u3001dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b 1.arp.c #include #include #include #include #include #include #include \/\/ DPDK\u4f7f\u7528\u7684\u5934\u6587\u4ef6 #include #include #include <r","og_url":"https:\/\/www.wsisp.com\/helps\/62677.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-01-20T06:34:18+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260120063414-696f21e6bae57.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"15 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/62677.html","url":"https:\/\/www.wsisp.com\/helps\/62677.html","name":"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-01-20T06:34:18+00:00","dateModified":"2026-01-20T06:34:18+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/62677.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/62677.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/62677.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"dpdk\u4e4barp\u56de\u663e\u4ee3\u7801\u6848\u4f8b"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/62677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=62677"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/62677\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/62674"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=62677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=62677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=62677"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=62677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}