examples/flow_classify/flow_classify.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <stdint.h>
   6 #include <inttypes.h>
   7 #include <getopt.h>
   8
   9 #include <rte_eal.h>
  10 #include <rte_ethdev.h>
  11 #include <rte_cycles.h>
  12 #include <rte_lcore.h>
  13 #include <rte_mbuf.h>
  14 #include <rte_flow.h>
  15 #include <rte_flow_classify.h>
  16 #include <rte_table_acl.h>
  17
  18 #define RX_RING_SIZE 128
  19 #define TX_RING_SIZE 512
  20
  21 #define NUM_MBUFS 8191
  22 #define MBUF_CACHE_SIZE 250
  23 #define BURST_SIZE 32
  24
  25 #define MAX_NUM_CLASSIFY 30
  26 #define FLOW_CLASSIFY_MAX_RULE_NUM 91
  27 #define FLOW_CLASSIFY_MAX_PRIORITY 8
  28 #define FLOW_CLASSIFIER_NAME_SIZE 64
  29
  30 #define COMMENT_LEAD_CHAR       ('#')
  31 #define OPTION_RULE_IPV4        "rule_ipv4"
  32 #define RTE_LOGTYPE_FLOW_CLASSIFY       RTE_LOGTYPE_USER3
  33 #define flow_classify_log(format, ...) \
  34                 RTE_LOG(ERR, FLOW_CLASSIFY, format, ##__VA_ARGS__)
  35
  36 #define uint32_t_to_char(ip, a, b, c, d) do {\
  37                 *a = (unsigned char)(ip >> 24 & 0xff);\
  38                 *b = (unsigned char)(ip >> 16 & 0xff);\
  39                 *c = (unsigned char)(ip >> 8 & 0xff);\
  40                 *d = (unsigned char)(ip & 0xff);\
  41         } while (0)
  42
  43 enum {
  44         CB_FLD_SRC_ADDR,
  45         CB_FLD_DST_ADDR,
  46         CB_FLD_SRC_PORT,
  47         CB_FLD_SRC_PORT_DLM,
  48         CB_FLD_SRC_PORT_MASK,
  49         CB_FLD_DST_PORT,
  50         CB_FLD_DST_PORT_DLM,
  51         CB_FLD_DST_PORT_MASK,
  52         CB_FLD_PROTO,
  53         CB_FLD_PRIORITY,
  54         CB_FLD_NUM,
  55 };
  56
  57 static struct{
  58         const char *rule_ipv4_name;
  59 } parm_config;
  60 const char cb_port_delim[] = ":";
  61
  62 static const struct rte_eth_conf port_conf_default = {
  63         .rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }
  64 };
  65
  66 struct flow_classifier {
  67         struct rte_flow_classifier *cls;
  68 };
  69
  70 struct flow_classifier_acl {
  71         struct flow_classifier cls;
  72 } __rte_cache_aligned;
  73
  74 /* ACL field definitions for IPv4 5 tuple rule */
  75
  76 enum {
  77         PROTO_FIELD_IPV4,
  78         SRC_FIELD_IPV4,
  79         DST_FIELD_IPV4,
  80         SRCP_FIELD_IPV4,
  81         DSTP_FIELD_IPV4,
  82         NUM_FIELDS_IPV4
  83 };
  84
  85 enum {
  86         PROTO_INPUT_IPV4,
  87         SRC_INPUT_IPV4,
  88         DST_INPUT_IPV4,
  89         SRCP_DESTP_INPUT_IPV4
  90 };
  91
  92 static struct rte_acl_field_def ipv4_defs[NUM_FIELDS_IPV4] = {
  93         /* first input field - always one byte long. */
  94         {
  95                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
  96                 .size = sizeof(uint8_t),
  97                 .field_index = PROTO_FIELD_IPV4,
  98                 .input_index = PROTO_INPUT_IPV4,
  99                 .offset = sizeof(struct ether_hdr) +
 100                         offsetof(struct ipv4_hdr, next_proto_id),
 101         },
 102         /* next input field (IPv4 source address) - 4 consecutive bytes. */
 103         {
 104                 /* rte_flow uses a bit mask for IPv4 addresses */
 105                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 106                 .size = sizeof(uint32_t),
 107                 .field_index = SRC_FIELD_IPV4,
 108                 .input_index = SRC_INPUT_IPV4,
 109                 .offset = sizeof(struct ether_hdr) +
 110                         offsetof(struct ipv4_hdr, src_addr),
 111         },
 112         /* next input field (IPv4 destination address) - 4 consecutive bytes. */
 113         {
 114                 /* rte_flow uses a bit mask for IPv4 addresses */
 115                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 116                 .size = sizeof(uint32_t),
 117                 .field_index = DST_FIELD_IPV4,
 118                 .input_index = DST_INPUT_IPV4,
 119                 .offset = sizeof(struct ether_hdr) +
 120                         offsetof(struct ipv4_hdr, dst_addr),
 121         },
 122         /*
 123          * Next 2 fields (src & dst ports) form 4 consecutive bytes.
 124          * They share the same input index.
 125          */
 126         {
 127                 /* rte_flow uses a bit mask for protocol ports */
 128                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 129                 .size = sizeof(uint16_t),
 130                 .field_index = SRCP_FIELD_IPV4,
 131                 .input_index = SRCP_DESTP_INPUT_IPV4,
 132                 .offset = sizeof(struct ether_hdr) +
 133                         sizeof(struct ipv4_hdr) +
 134                         offsetof(struct tcp_hdr, src_port),
 135         },
 136         {
 137                 /* rte_flow uses a bit mask for protocol ports */
 138                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 139                 .size = sizeof(uint16_t),
 140                 .field_index = DSTP_FIELD_IPV4,
 141                 .input_index = SRCP_DESTP_INPUT_IPV4,
 142                 .offset = sizeof(struct ether_hdr) +
 143                         sizeof(struct ipv4_hdr) +
 144                         offsetof(struct tcp_hdr, dst_port),
 145         },
 146 };
 147
 148 /* flow classify data */
 149 static int num_classify_rules;
 150 static struct rte_flow_classify_rule *rules[MAX_NUM_CLASSIFY];
 151 static struct rte_flow_classify_ipv4_5tuple_stats ntuple_stats;
 152 static struct rte_flow_classify_stats classify_stats = {
 153                 .stats = (void **)&ntuple_stats
 154 };
 155
 156 /* parameters for rte_flow_classify_validate and
 157  * rte_flow_classify_table_entry_add functions
 158  */
 159
 160 static struct rte_flow_item  eth_item = { RTE_FLOW_ITEM_TYPE_ETH,
 161         0, 0, 0 };
 162 static struct rte_flow_item  end_item = { RTE_FLOW_ITEM_TYPE_END,
 163         0, 0, 0 };
 164
 165 /* sample actions:
 166  * "actions count / end"
 167  */
 168 struct rte_flow_query_count count = {
 169         .reset = 1,
 170         .hits_set = 1,
 171         .bytes_set = 1,
 172         .hits = 0,
 173         .bytes = 0,
 174 };
 175 static struct rte_flow_action count_action = { RTE_FLOW_ACTION_TYPE_COUNT,
 176         &count};
 177 static struct rte_flow_action end_action = { RTE_FLOW_ACTION_TYPE_END, 0};
 178 static struct rte_flow_action actions[2];
 179
 180 /* sample attributes */
 181 static struct rte_flow_attr attr;
 182
 183 /* flow_classify.c: * Based on DPDK skeleton forwarding example. */
 184
 185 /*
 186  * Initializes a given port using global settings and with the RX buffers
 187  * coming from the mbuf_pool passed as a parameter.
 188  */
 189 static inline int
 190 port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 191 {
 192         struct rte_eth_conf port_conf = port_conf_default;
 193         struct ether_addr addr;
 194         const uint16_t rx_rings = 1, tx_rings = 1;
 195         int retval;
 196         uint16_t q;
 197
 198         if (port >= rte_eth_dev_count())
 199                 return -1;
 200
 201         /* Configure the Ethernet device. */
 202         retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
 203         if (retval != 0)
 204                 return retval;
 205
 206         /* Allocate and set up 1 RX queue per Ethernet port. */
 207         for (q = 0; q < rx_rings; q++) {
 208                 retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
 209                                 rte_eth_dev_socket_id(port), NULL, mbuf_pool);
 210                 if (retval < 0)
 211                         return retval;
 212         }
 213
 214         /* Allocate and set up 1 TX queue per Ethernet port. */
 215         for (q = 0; q < tx_rings; q++) {
 216                 retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
 217                                 rte_eth_dev_socket_id(port), NULL);
 218                 if (retval < 0)
 219                         return retval;
 220         }
 221
 222         /* Start the Ethernet port. */
 223         retval = rte_eth_dev_start(port);
 224         if (retval < 0)
 225                 return retval;
 226
 227         /* Display the port MAC address. */
 228         rte_eth_macaddr_get(port, &addr);
 229         printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
 230                            " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
 231                         port,
 232                         addr.addr_bytes[0], addr.addr_bytes[1],
 233                         addr.addr_bytes[2], addr.addr_bytes[3],
 234                         addr.addr_bytes[4], addr.addr_bytes[5]);
 235
 236         /* Enable RX in promiscuous mode for the Ethernet device. */
 237         rte_eth_promiscuous_enable(port);
 238
 239         return 0;
 240 }
 241
 242 /*
 243  * The lcore main. This is the main thread that does the work, reading from
 244  * an input port classifying the packets and writing to an output port.
 245  */
 246 static __attribute__((noreturn)) void
 247 lcore_main(struct flow_classifier *cls_app)
 248 {
 249         const uint8_t nb_ports = rte_eth_dev_count();
 250         uint8_t port;
 251         int ret;
 252         int i = 0;
 253
 254         ret = rte_flow_classify_table_entry_delete(cls_app->cls,
 255                         rules[7]);
 256         if (ret)
 257                 printf("table_entry_delete failed [7] %d\n\n", ret);
 258         else
 259                 printf("table_entry_delete succeeded [7]\n\n");
 260
 261         /*
 262          * Check that the port is on the same NUMA node as the polling thread
 263          * for best performance.
 264          */
 265         for (port = 0; port < nb_ports; port++)
 266                 if (rte_eth_dev_socket_id(port) > 0 &&
 267                         rte_eth_dev_socket_id(port) != (int)rte_socket_id()) {
 268                         printf("\n\n");
 269                         printf("WARNING: port %u is on remote NUMA node\n",
 270                                port);
 271                         printf("to polling thread.\n");
 272                         printf("Performance will not be optimal.\n");
 273                 }
 274         printf("\nCore %u forwarding packets. ", rte_lcore_id());
 275         printf("[Ctrl+C to quit]\n");
 276
 277         /* Run until the application is quit or killed. */
 278         for (;;) {
 279                 /*
 280                  * Receive packets on a port, classify them and forward them
 281                  * on the paired port.
 282                  * The mapping is 0 -> 1, 1 -> 0, 2 -> 3, 3 -> 2, etc.
 283                  */
 284                 for (port = 0; port < nb_ports; port++) {
 285                         /* Get burst of RX packets, from first port of pair. */
 286                         struct rte_mbuf *bufs[BURST_SIZE];
 287                         const uint16_t nb_rx = rte_eth_rx_burst(port, 0,
 288                                         bufs, BURST_SIZE);
 289
 290                         if (unlikely(nb_rx == 0))
 291                                 continue;
 292
 293                         for (i = 0; i < MAX_NUM_CLASSIFY; i++) {
 294                                 if (rules[i]) {
 295                                         ret = rte_flow_classifier_query(
 296                                                 cls_app->cls,
 297                                                 bufs, nb_rx, rules[i],
 298                                                 &classify_stats);
 299                                         if (ret)
 300                                                 printf(
 301                                                         "rule [%d] query failed ret [%d]\n\n",
 302                                                         i, ret);
 303                                         else {
 304                                                 printf(
 305                                                 "rule[%d] count=%"PRIu64"\n",
 306                                                 i, ntuple_stats.counter1);
 307
 308                                                 printf("proto = %d\n",
 309                                                 ntuple_stats.ipv4_5tuple.proto);
 310                                         }
 311                                 }
 312                         }
 313
 314                         /* Send burst of TX packets, to second port of pair. */
 315                         const uint16_t nb_tx = rte_eth_tx_burst(port ^ 1, 0,
 316                                         bufs, nb_rx);
 317
 318                         /* Free any unsent packets. */
 319                         if (unlikely(nb_tx < nb_rx)) {
 320                                 uint16_t buf;
 321
 322                                 for (buf = nb_tx; buf < nb_rx; buf++)
 323                                         rte_pktmbuf_free(bufs[buf]);
 324                         }
 325                 }
 326         }
 327 }
 328
 329 /*
 330  * Parse IPv4 5 tuple rules file, ipv4_rules_file.txt.
 331  * Expected format:
 332  * <src_ipv4_addr>'/'<masklen> <space> \
 333  * <dst_ipv4_addr>'/'<masklen> <space> \
 334  * <src_port> <space> ":" <src_port_mask> <space> \
 335  * <dst_port> <space> ":" <dst_port_mask> <space> \
 336  * <proto>'/'<proto_mask> <space> \
 337  * <priority>
 338  */
 339
 340 static int
 341 get_cb_field(char **in, uint32_t *fd, int base, unsigned long lim,
 342                 char dlm)
 343 {
 344         unsigned long val;
 345         char *end;
 346
 347         errno = 0;
 348         val = strtoul(*in, &end, base);
 349         if (errno != 0 || end[0] != dlm || val > lim)
 350                 return -EINVAL;
 351         *fd = (uint32_t)val;
 352         *in = end + 1;
 353         return 0;
 354 }
 355
 356 static int
 357 parse_ipv4_net(char *in, uint32_t *addr, uint32_t *mask_len)
 358 {
 359         uint32_t a, b, c, d, m;
 360
 361         if (get_cb_field(&in, &a, 0, UINT8_MAX, '.'))
 362                 return -EINVAL;
 363         if (get_cb_field(&in, &b, 0, UINT8_MAX, '.'))
 364                 return -EINVAL;
 365         if (get_cb_field(&in, &c, 0, UINT8_MAX, '.'))
 366                 return -EINVAL;
 367         if (get_cb_field(&in, &d, 0, UINT8_MAX, '/'))
 368                 return -EINVAL;
 369         if (get_cb_field(&in, &m, 0, sizeof(uint32_t) * CHAR_BIT, 0))
 370                 return -EINVAL;
 371
 372         addr[0] = IPv4(a, b, c, d);
 373         mask_len[0] = m;
 374         return 0;
 375 }
 376
 377 static int
 378 parse_ipv4_5tuple_rule(char *str, struct rte_eth_ntuple_filter *ntuple_filter)
 379 {
 380         int i, ret;
 381         char *s, *sp, *in[CB_FLD_NUM];
 382         static const char *dlm = " \t\n";
 383         int dim = CB_FLD_NUM;
 384         uint32_t temp;
 385
 386         s = str;
 387         for (i = 0; i != dim; i++, s = NULL) {
 388                 in[i] = strtok_r(s, dlm, &sp);
 389                 if (in[i] == NULL)
 390                         return -EINVAL;
 391         }
 392
 393         ret = parse_ipv4_net(in[CB_FLD_SRC_ADDR],
 394                         &ntuple_filter->src_ip,
 395                         &ntuple_filter->src_ip_mask);
 396         if (ret != 0) {
 397                 flow_classify_log("failed to read source address/mask: %s\n",
 398                         in[CB_FLD_SRC_ADDR]);
 399                 return ret;
 400         }
 401
 402         ret = parse_ipv4_net(in[CB_FLD_DST_ADDR],
 403                         &ntuple_filter->dst_ip,
 404                         &ntuple_filter->dst_ip_mask);
 405         if (ret != 0) {
 406                 flow_classify_log("failed to read source address/mask: %s\n",
 407                         in[CB_FLD_DST_ADDR]);
 408                 return ret;
 409         }
 410
 411         if (get_cb_field(&in[CB_FLD_SRC_PORT], &temp, 0, UINT16_MAX, 0))
 412                 return -EINVAL;
 413         ntuple_filter->src_port = (uint16_t)temp;
 414
 415         if (strncmp(in[CB_FLD_SRC_PORT_DLM], cb_port_delim,
 416                         sizeof(cb_port_delim)) != 0)
 417                 return -EINVAL;
 418
 419         if (get_cb_field(&in[CB_FLD_SRC_PORT_MASK], &temp, 0, UINT16_MAX, 0))
 420                 return -EINVAL;
 421         ntuple_filter->src_port_mask = (uint16_t)temp;
 422
 423         if (get_cb_field(&in[CB_FLD_DST_PORT], &temp, 0, UINT16_MAX, 0))
 424                 return -EINVAL;
 425         ntuple_filter->dst_port = (uint16_t)temp;
 426
 427         if (strncmp(in[CB_FLD_DST_PORT_DLM], cb_port_delim,
 428                         sizeof(cb_port_delim)) != 0)
 429                 return -EINVAL;
 430
 431         if (get_cb_field(&in[CB_FLD_DST_PORT_MASK], &temp, 0, UINT16_MAX, 0))
 432                 return -EINVAL;
 433         ntuple_filter->dst_port_mask = (uint16_t)temp;
 434
 435         if (get_cb_field(&in[CB_FLD_PROTO], &temp, 0, UINT8_MAX, '/'))
 436                 return -EINVAL;
 437         ntuple_filter->proto = (uint8_t)temp;
 438
 439         if (get_cb_field(&in[CB_FLD_PROTO], &temp, 0, UINT8_MAX, 0))
 440                 return -EINVAL;
 441         ntuple_filter->proto_mask = (uint8_t)temp;
 442
 443         if (get_cb_field(&in[CB_FLD_PRIORITY], &temp, 0, UINT16_MAX, 0))
 444                 return -EINVAL;
 445         ntuple_filter->priority = (uint16_t)temp;
 446         if (ntuple_filter->priority > FLOW_CLASSIFY_MAX_PRIORITY)
 447                 ret = -EINVAL;
 448
 449         return ret;
 450 }
 451
 452 /* Bypass comment and empty lines */
 453 static inline int
 454 is_bypass_line(char *buff)
 455 {
 456         int i = 0;
 457
 458         /* comment line */
 459         if (buff[0] == COMMENT_LEAD_CHAR)
 460                 return 1;
 461         /* empty line */
 462         while (buff[i] != '\0') {
 463                 if (!isspace(buff[i]))
 464                         return 0;
 465                 i++;
 466         }
 467         return 1;
 468 }
 469
 470 static uint32_t
 471 convert_depth_to_bitmask(uint32_t depth_val)
 472 {
 473         uint32_t bitmask = 0;
 474         int i, j;
 475
 476         for (i = depth_val, j = 0; i > 0; i--, j++)
 477                 bitmask |= (1 << (31 - j));
 478         return bitmask;
 479 }
 480
 481 static int
 482 add_classify_rule(struct rte_eth_ntuple_filter *ntuple_filter,
 483                 struct flow_classifier *cls_app)
 484 {
 485         int ret = -1;
 486         int key_found;
 487         struct rte_flow_error error;
 488         struct rte_flow_item_ipv4 ipv4_spec;
 489         struct rte_flow_item_ipv4 ipv4_mask;
 490         struct rte_flow_item ipv4_udp_item;
 491         struct rte_flow_item ipv4_tcp_item;
 492         struct rte_flow_item ipv4_sctp_item;
 493         struct rte_flow_item_udp udp_spec;
 494         struct rte_flow_item_udp udp_mask;
 495         struct rte_flow_item udp_item;
 496         struct rte_flow_item_tcp tcp_spec;
 497         struct rte_flow_item_tcp tcp_mask;
 498         struct rte_flow_item tcp_item;
 499         struct rte_flow_item_sctp sctp_spec;
 500         struct rte_flow_item_sctp sctp_mask;
 501         struct rte_flow_item sctp_item;
 502         struct rte_flow_item pattern_ipv4_5tuple[4];
 503         struct rte_flow_classify_rule *rule;
 504         uint8_t ipv4_proto;
 505
 506         if (num_classify_rules >= MAX_NUM_CLASSIFY) {
 507                 printf(
 508                         "\nINFO:  classify rule capacity %d reached\n",
 509                         num_classify_rules);
 510                 return ret;
 511         }
 512
 513         /* set up parameters for validate and add */
 514         memset(&ipv4_spec, 0, sizeof(ipv4_spec));
 515         ipv4_spec.hdr.next_proto_id = ntuple_filter->proto;
 516         ipv4_spec.hdr.src_addr = ntuple_filter->src_ip;
 517         ipv4_spec.hdr.dst_addr = ntuple_filter->dst_ip;
 518         ipv4_proto = ipv4_spec.hdr.next_proto_id;
 519
 520         memset(&ipv4_mask, 0, sizeof(ipv4_mask));
 521         ipv4_mask.hdr.next_proto_id = ntuple_filter->proto_mask;
 522         ipv4_mask.hdr.src_addr = ntuple_filter->src_ip_mask;
 523         ipv4_mask.hdr.src_addr =
 524                 convert_depth_to_bitmask(ipv4_mask.hdr.src_addr);
 525         ipv4_mask.hdr.dst_addr = ntuple_filter->dst_ip_mask;
 526         ipv4_mask.hdr.dst_addr =
 527                 convert_depth_to_bitmask(ipv4_mask.hdr.dst_addr);
 528
 529         switch (ipv4_proto) {
 530         case IPPROTO_UDP:
 531                 ipv4_udp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 532                 ipv4_udp_item.spec = &ipv4_spec;
 533                 ipv4_udp_item.mask = &ipv4_mask;
 534                 ipv4_udp_item.last = NULL;
 535
 536                 udp_spec.hdr.src_port = ntuple_filter->src_port;
 537                 udp_spec.hdr.dst_port = ntuple_filter->dst_port;
 538                 udp_spec.hdr.dgram_len = 0;
 539                 udp_spec.hdr.dgram_cksum = 0;
 540
 541                 udp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 542                 udp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 543                 udp_mask.hdr.dgram_len = 0;
 544                 udp_mask.hdr.dgram_cksum = 0;
 545
 546                 udp_item.type = RTE_FLOW_ITEM_TYPE_UDP;
 547                 udp_item.spec = &udp_spec;
 548                 udp_item.mask = &udp_mask;
 549                 udp_item.last = NULL;
 550
 551                 attr.priority = ntuple_filter->priority;
 552                 pattern_ipv4_5tuple[1] = ipv4_udp_item;
 553                 pattern_ipv4_5tuple[2] = udp_item;
 554                 break;
 555         case IPPROTO_TCP:
 556                 ipv4_tcp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 557                 ipv4_tcp_item.spec = &ipv4_spec;
 558                 ipv4_tcp_item.mask = &ipv4_mask;
 559                 ipv4_tcp_item.last = NULL;
 560
 561                 memset(&tcp_spec, 0, sizeof(tcp_spec));
 562                 tcp_spec.hdr.src_port = ntuple_filter->src_port;
 563                 tcp_spec.hdr.dst_port = ntuple_filter->dst_port;
 564
 565                 memset(&tcp_mask, 0, sizeof(tcp_mask));
 566                 tcp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 567                 tcp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 568
 569                 tcp_item.type = RTE_FLOW_ITEM_TYPE_TCP;
 570                 tcp_item.spec = &tcp_spec;
 571                 tcp_item.mask = &tcp_mask;
 572                 tcp_item.last = NULL;
 573
 574                 attr.priority = ntuple_filter->priority;
 575                 pattern_ipv4_5tuple[1] = ipv4_tcp_item;
 576                 pattern_ipv4_5tuple[2] = tcp_item;
 577                 break;
 578         case IPPROTO_SCTP:
 579                 ipv4_sctp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 580                 ipv4_sctp_item.spec = &ipv4_spec;
 581                 ipv4_sctp_item.mask = &ipv4_mask;
 582                 ipv4_sctp_item.last = NULL;
 583
 584                 sctp_spec.hdr.src_port = ntuple_filter->src_port;
 585                 sctp_spec.hdr.dst_port = ntuple_filter->dst_port;
 586                 sctp_spec.hdr.cksum = 0;
 587                 sctp_spec.hdr.tag = 0;
 588
 589                 sctp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 590                 sctp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 591                 sctp_mask.hdr.cksum = 0;
 592                 sctp_mask.hdr.tag = 0;
 593
 594                 sctp_item.type = RTE_FLOW_ITEM_TYPE_SCTP;
 595                 sctp_item.spec = &sctp_spec;
 596                 sctp_item.mask = &sctp_mask;
 597                 sctp_item.last = NULL;
 598
 599                 attr.priority = ntuple_filter->priority;
 600                 pattern_ipv4_5tuple[1] = ipv4_sctp_item;
 601                 pattern_ipv4_5tuple[2] = sctp_item;
 602                 break;
 603         default:
 604                 return ret;
 605         }
 606
 607         attr.ingress = 1;
 608         pattern_ipv4_5tuple[0] = eth_item;
 609         pattern_ipv4_5tuple[3] = end_item;
 610         actions[0] = count_action;
 611         actions[1] = end_action;
 612
 613         /* Validate and add rule */
 614         ret = rte_flow_classify_validate(cls_app->cls, &attr,
 615                         pattern_ipv4_5tuple, actions, &error);
 616         if (ret) {
 617                 printf("table entry validate failed ipv4_proto = %u\n",
 618                         ipv4_proto);
 619                 return ret;
 620         }
 621
 622         rule = rte_flow_classify_table_entry_add(
 623                         cls_app->cls, &attr, pattern_ipv4_5tuple,
 624                         actions, &key_found, &error);
 625         if (rule == NULL) {
 626                 printf("table entry add failed ipv4_proto = %u\n",
 627                         ipv4_proto);
 628                 ret = -1;
 629                 return ret;
 630         }
 631
 632         rules[num_classify_rules] = rule;
 633         num_classify_rules++;
 634         return 0;
 635 }
 636
 637 static int
 638 add_rules(const char *rule_path, struct flow_classifier *cls_app)
 639 {
 640         FILE *fh;
 641         char buff[LINE_MAX];
 642         unsigned int i = 0;
 643         unsigned int total_num = 0;
 644         struct rte_eth_ntuple_filter ntuple_filter;
 645         int ret;
 646
 647         fh = fopen(rule_path, "rb");
 648         if (fh == NULL)
 649                 rte_exit(EXIT_FAILURE, "%s: fopen %s failed\n", __func__,
 650                         rule_path);
 651
 652         ret = fseek(fh, 0, SEEK_SET);
 653         if (ret)
 654                 rte_exit(EXIT_FAILURE, "%s: fseek %d failed\n", __func__,
 655                         ret);
 656
 657         i = 0;
 658         while (fgets(buff, LINE_MAX, fh) != NULL) {
 659                 i++;
 660
 661                 if (is_bypass_line(buff))
 662                         continue;
 663
 664                 if (total_num >= FLOW_CLASSIFY_MAX_RULE_NUM - 1) {
 665                         printf("\nINFO: classify rule capacity %d reached\n",
 666                                 total_num);
 667                         break;
 668                 }
 669
 670                 if (parse_ipv4_5tuple_rule(buff, &ntuple_filter) != 0)
 671                         rte_exit(EXIT_FAILURE,
 672                                 "%s Line %u: parse rules error\n",
 673                                 rule_path, i);
 674
 675                 if (add_classify_rule(&ntuple_filter, cls_app) != 0)
 676                         rte_exit(EXIT_FAILURE, "add rule error\n");
 677
 678                 total_num++;
 679         }
 680
 681         fclose(fh);
 682         return 0;
 683 }
 684
 685 /* display usage */
 686 static void
 687 print_usage(const char *prgname)
 688 {
 689         printf("%s usage:\n", prgname);
 690         printf("[EAL options] --  --"OPTION_RULE_IPV4"=FILE: ");
 691         printf("specify the ipv4 rules file.\n");
 692         printf("Each rule occupies one line in the file.\n");
 693 }
 694
 695 /* Parse the argument given in the command line of the application */
 696 static int
 697 parse_args(int argc, char **argv)
 698 {
 699         int opt, ret;
 700         char **argvopt;
 701         int option_index;
 702         char *prgname = argv[0];
 703         static struct option lgopts[] = {
 704                 {OPTION_RULE_IPV4, 1, 0, 0},
 705                 {NULL, 0, 0, 0}
 706         };
 707
 708         argvopt = argv;
 709
 710         while ((opt = getopt_long(argc, argvopt, "",
 711                                 lgopts, &option_index)) != EOF) {
 712
 713                 switch (opt) {
 714                 /* long options */
 715                 case 0:
 716                         if (!strncmp(lgopts[option_index].name,
 717                                         OPTION_RULE_IPV4,
 718                                         sizeof(OPTION_RULE_IPV4)))
 719                                 parm_config.rule_ipv4_name = optarg;
 720                         break;
 721                 default:
 722                         print_usage(prgname);
 723                         return -1;
 724                 }
 725         }
 726
 727         if (optind >= 0)
 728                 argv[optind-1] = prgname;
 729
 730         ret = optind-1;
 731         optind = 1; /* reset getopt lib */
 732         return ret;
 733 }
 734
 735 /*
 736  * The main function, which does initialization and calls the lcore_main
 737  * function.
 738  */
 739 int
 740 main(int argc, char *argv[])
 741 {
 742         struct rte_mempool *mbuf_pool;
 743         uint8_t nb_ports;
 744         uint8_t portid;
 745         int ret;
 746         int socket_id;
 747         struct rte_table_acl_params table_acl_params;
 748         struct rte_flow_classify_table_params cls_table_params;
 749         struct flow_classifier *cls_app;
 750         struct rte_flow_classifier_params cls_params;
 751         uint32_t size;
 752
 753         /* Initialize the Environment Abstraction Layer (EAL). */
 754         ret = rte_eal_init(argc, argv);
 755         if (ret < 0)
 756                 rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
 757
 758         argc -= ret;
 759         argv += ret;
 760
 761         /* parse application arguments (after the EAL ones) */
 762         ret = parse_args(argc, argv);
 763         if (ret < 0)
 764                 rte_exit(EXIT_FAILURE, "Invalid flow_classify parameters\n");
 765
 766         /* Check that there is an even number of ports to send/receive on. */
 767         nb_ports = rte_eth_dev_count();
 768         if (nb_ports < 2 || (nb_ports & 1))
 769                 rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n");
 770
 771         /* Creates a new mempool in memory to hold the mbufs. */
 772         mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports,
 773                 MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 774
 775         if (mbuf_pool == NULL)
 776                 rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
 777
 778         /* Initialize all ports. */
 779         for (portid = 0; portid < nb_ports; portid++)
 780                 if (port_init(portid, mbuf_pool) != 0)
 781                         rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n",
 782                                         portid);
 783
 784         if (rte_lcore_count() > 1)
 785                 printf("\nWARNING: Too many lcores enabled. Only 1 used.\n");
 786
 787         socket_id = rte_eth_dev_socket_id(0);
 788
 789         /* Memory allocation */
 790         size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct flow_classifier_acl));
 791         cls_app = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
 792         if (cls_app == NULL)
 793                 rte_exit(EXIT_FAILURE, "Cannot allocate classifier memory\n");
 794
 795         cls_params.name = "flow_classifier";
 796         cls_params.socket_id = socket_id;
 797
 798         cls_app->cls = rte_flow_classifier_create(&cls_params);
 799         if (cls_app->cls == NULL) {
 800                 rte_free(cls_app);
 801                 rte_exit(EXIT_FAILURE, "Cannot create classifier\n");
 802         }
 803
 804         /* initialise ACL table params */
 805         table_acl_params.name = "table_acl_ipv4_5tuple";
 806         table_acl_params.n_rules = FLOW_CLASSIFY_MAX_RULE_NUM;
 807         table_acl_params.n_rule_fields = RTE_DIM(ipv4_defs);
 808         memcpy(table_acl_params.field_format, ipv4_defs, sizeof(ipv4_defs));
 809
 810         /* initialise table create params */
 811         cls_table_params.ops = &rte_table_acl_ops;
 812         cls_table_params.arg_create = &table_acl_params;
 813         cls_table_params.type = RTE_FLOW_CLASSIFY_TABLE_ACL_IP4_5TUPLE;
 814
 815         ret = rte_flow_classify_table_create(cls_app->cls, &cls_table_params);
 816         if (ret) {
 817                 rte_flow_classifier_free(cls_app->cls);
 818                 rte_free(cls_app);
 819                 rte_exit(EXIT_FAILURE, "Failed to create classifier table\n");
 820         }
 821
 822         /* read file of IPv4 5 tuple rules and initialize parameters
 823          * for rte_flow_classify_validate and rte_flow_classify_table_entry_add
 824          * API's.
 825          */
 826         if (add_rules(parm_config.rule_ipv4_name, cls_app)) {
 827                 rte_flow_classifier_free(cls_app->cls);
 828                 rte_free(cls_app);
 829                 rte_exit(EXIT_FAILURE, "Failed to add rules\n");
 830         }
 831
 832         /* Call lcore_main on the master core only. */
 833         lcore_main(cls_app);
 834
 835         return 0;
 836 }