DPDK设置过滤条件为IP和端口号规则的示例代码-DPDK中文网

以下是一个使用DPDK设置过滤条件为IP和端口号规则的示例代码： “`c #include #include #include #include #include #include #include #include #include #include

#define RX_RING_SIZE 1024 #define TX_RING_SIZE 1024 #define NUM_MBUFS 8191 #define MBUF_CACHE_SIZE 250 #define BURST_SIZE 32

static const struct rte_eth_conf port_conf_default = {

.rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }

};

int main(int argc, char *argv[]) {

int ret;
uint16_t portid;
struct rte_mempool *mbuf_pool;
struct rte_eth_conf port_conf = port_conf_default;
struct rte_eth_rxconf rx_conf;
struct rte_eth_txconf tx_conf;
struct rte_eth_dev_info dev_info;
struct rte_eth_stats stats;
struct rte_eth_mac_filter mac_filter;
struct rte_eth_ipv4_flow ipv4_flow;
struct rte_eth_tcp_flow tcp_flow;
struct rte_eth_ntuple_filter ntuple_filter;
struct rte_eth_ntuple_filter_conf ntuple_filter_conf;
struct rte_eth_ntuple_filter_elem ntuple_filter_elem;
struct ether_addr mac_addr;
struct in_addr ip_addr;
uint16_t port_num;
uint32_t ip_mask;
uint16_t tcp_port_mask;
uint16_t tcp_port_value;

/* Initialize DPDK */
ret = rte_eal_init(argc, argv);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eal_init failed\n");

argc -= ret;
argv += ret;

/* Check for valid port number */
if (argc < 2)
    rte_exit(EXIT_FAILURE, "Error: invalid port number\n");

port_num = atoi(argv[1]);
if (port_num >= rte_eth_dev_count())
    rte_exit(EXIT_FAILURE, "Error: invalid port number\n");

/* Initialize port */
portid = rte_eth_find_next_owned_by(port_num, RTE_ETH_DEV_NO_OWNER);
if (portid == RTE_MAX_ETHPORTS)
    rte_exit(EXIT_FAILURE, "Error: no owned port found\n");

ret = rte_eth_dev_info_get(portid, &dev_info);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_dev_info_get failed\n");

ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_dev_configure failed\n");

ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &dev_info.default_rxconf, &dev_info.default_txconf);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_dev_adjust_nb_rx_tx_desc failed\n");

ret = rte_eth_rx_queue_setup(portid, 0, RX_RING_SIZE, rte_eth_dev_socket_id(portid), &dev_info.default_rxconf, mbuf_pool);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_rx_queue_setup failed\n");

ret = rte_eth_tx_queue_setup(portid, 0, TX_RING_SIZE, rte_eth_dev_socket_id(portid), &dev_info.default_txconf);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_tx_queue_setup failed\n");

ret = rte_eth_dev_start(portid);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_dev_start failed\n");

/* Initialize memory pool */
mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS, MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
if (mbuf_pool == NULL)
    rte_exit(EXIT_FAILURE, "Error: rte_pktmbuf_pool_create failed\n");

/* Set MAC filter */
ret = rte_eth_macaddr_get(portid, &mac_addr);
if (ret < 0)
    rte_exit(EXIT_FAILURE, "Error: rte_eth_macaddr_get failed\n");

memset(&mac_filter, 0, sizeof(mac_filter));
mac_filter.mac_addr = mac_addr;
mac_filter.mac_addr_byte_mask = 0xffffffffffff;

ret = rte_eth_dev_filter_ctrl(portid, RTE_ETH_FILTER_MACVLAN, RTE_ETH_FILTER_ADD, &mac_filter);
if (ret < 0)