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 1024
  19 #define TX_RING_SIZE 1024
  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 = {
  64                 .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
  65         },
  66 };
  67
  68 struct flow_classifier {
  69         struct rte_flow_classifier *cls;
  70 };
  71
  72 struct flow_classifier_acl {
  73         struct flow_classifier cls;
  74 } __rte_cache_aligned;
  75
  76 /* ACL field definitions for IPv4 5 tuple rule */
  77
  78 enum {
  79         PROTO_FIELD_IPV4,
  80         SRC_FIELD_IPV4,
  81         DST_FIELD_IPV4,
  82         SRCP_FIELD_IPV4,
  83         DSTP_FIELD_IPV4,
  84         NUM_FIELDS_IPV4
  85 };
  86
  87 enum {
  88         PROTO_INPUT_IPV4,
  89         SRC_INPUT_IPV4,
  90         DST_INPUT_IPV4,
  91         SRCP_DESTP_INPUT_IPV4
  92 };
  93
  94 static struct rte_acl_field_def ipv4_defs[NUM_FIELDS_IPV4] = {
  95         /* first input field - always one byte long. */
  96         {
  97                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
  98                 .size = sizeof(uint8_t),
  99                 .field_index = PROTO_FIELD_IPV4,
 100                 .input_index = PROTO_INPUT_IPV4,
 101                 .offset = sizeof(struct rte_ether_hdr) +
 102                         offsetof(struct rte_ipv4_hdr, next_proto_id),
 103         },
 104         /* next input field (IPv4 source address) - 4 consecutive bytes. */
 105         {
 106                 /* rte_flow uses a bit mask for IPv4 addresses */
 107                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 108                 .size = sizeof(uint32_t),
 109                 .field_index = SRC_FIELD_IPV4,
 110                 .input_index = SRC_INPUT_IPV4,
 111                 .offset = sizeof(struct rte_ether_hdr) +
 112                         offsetof(struct rte_ipv4_hdr, src_addr),
 113         },
 114         /* next input field (IPv4 destination address) - 4 consecutive bytes. */
 115         {
 116                 /* rte_flow uses a bit mask for IPv4 addresses */
 117                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 118                 .size = sizeof(uint32_t),
 119                 .field_index = DST_FIELD_IPV4,
 120                 .input_index = DST_INPUT_IPV4,
 121                 .offset = sizeof(struct rte_ether_hdr) +
 122                         offsetof(struct rte_ipv4_hdr, dst_addr),
 123         },
 124         /*
 125          * Next 2 fields (src & dst ports) form 4 consecutive bytes.
 126          * They share the same input index.
 127          */
 128         {
 129                 /* rte_flow uses a bit mask for protocol ports */
 130                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 131                 .size = sizeof(uint16_t),
 132                 .field_index = SRCP_FIELD_IPV4,
 133                 .input_index = SRCP_DESTP_INPUT_IPV4,
 134                 .offset = sizeof(struct rte_ether_hdr) +
 135                         sizeof(struct rte_ipv4_hdr) +
 136                         offsetof(struct rte_tcp_hdr, src_port),
 137         },
 138         {
 139                 /* rte_flow uses a bit mask for protocol ports */
 140                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 141                 .size = sizeof(uint16_t),
 142                 .field_index = DSTP_FIELD_IPV4,
 143                 .input_index = SRCP_DESTP_INPUT_IPV4,
 144                 .offset = sizeof(struct rte_ether_hdr) +
 145                         sizeof(struct rte_ipv4_hdr) +
 146                         offsetof(struct rte_tcp_hdr, dst_port),
 147         },
 148 };
 149
 150 /* flow classify data */
 151 static int num_classify_rules;
 152 static struct rte_flow_classify_rule *rules[MAX_NUM_CLASSIFY];
 153 static struct rte_flow_classify_ipv4_5tuple_stats ntuple_stats;
 154 static struct rte_flow_classify_stats classify_stats = {
 155                 .stats = (void **)&ntuple_stats
 156 };
 157
 158 /* parameters for rte_flow_classify_validate and
 159  * rte_flow_classify_table_entry_add functions
 160  */
 161
 162 static struct rte_flow_item  eth_item = { RTE_FLOW_ITEM_TYPE_ETH,
 163         0, 0, 0 };
 164 static struct rte_flow_item  end_item = { RTE_FLOW_ITEM_TYPE_END,
 165         0, 0, 0 };
 166
 167 /* sample actions:
 168  * "actions count / end"
 169  */
 170 struct rte_flow_query_count count = {
 171         .reset = 1,
 172         .hits_set = 1,
 173         .bytes_set = 1,
 174         .hits = 0,
 175         .bytes = 0,
 176 };
 177 static struct rte_flow_action count_action = { RTE_FLOW_ACTION_TYPE_COUNT,
 178         &count};
 179 static struct rte_flow_action end_action = { RTE_FLOW_ACTION_TYPE_END, 0};
 180 static struct rte_flow_action actions[2];
 181
 182 /* sample attributes */
 183 static struct rte_flow_attr attr;
 184
 185 /* flow_classify.c: * Based on DPDK skeleton forwarding example. */
 186
 187 /*
 188  * Initializes a given port using global settings and with the RX buffers
 189  * coming from the mbuf_pool passed as a parameter.
 190  */
 191 static inline int
 192 port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 193 {
 194         struct rte_eth_conf port_conf = port_conf_default;
 195         struct rte_ether_addr addr;
 196         const uint16_t rx_rings = 1, tx_rings = 1;
 197         int retval;
 198         uint16_t q;
 199         struct rte_eth_dev_info dev_info;
 200         struct rte_eth_txconf txconf;
 201
 202         if (!rte_eth_dev_is_valid_port(port))
 203                 return -1;
 204
 205         retval = rte_eth_dev_info_get(port, &dev_info);
 206         if (retval != 0) {
 207                 printf("Error during getting device (port %u) info: %s\n",
 208                                 port, strerror(-retval));
 209                 return retval;
 210         }
 211
 212         if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 213                 port_conf.txmode.offloads |=
 214                         DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 215
 216         /* Configure the Ethernet device. */
 217         retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
 218         if (retval != 0)
 219                 return retval;
 220
 221         /* Allocate and set up 1 RX queue per Ethernet port. */
 222         for (q = 0; q < rx_rings; q++) {
 223                 retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
 224                                 rte_eth_dev_socket_id(port), NULL, mbuf_pool);
 225                 if (retval < 0)
 226                         return retval;
 227         }
 228
 229         txconf = dev_info.default_txconf;
 230         txconf.offloads = port_conf.txmode.offloads;
 231         /* Allocate and set up 1 TX queue per Ethernet port. */
 232         for (q = 0; q < tx_rings; q++) {
 233                 retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
 234                                 rte_eth_dev_socket_id(port), &txconf);
 235                 if (retval < 0)
 236                         return retval;
 237         }
 238
 239         /* Start the Ethernet port. */
 240         retval = rte_eth_dev_start(port);
 241         if (retval < 0)
 242                 return retval;
 243
 244         /* Display the port MAC address. */
 245         retval = rte_eth_macaddr_get(port, &addr);
 246         if (retval != 0)
 247                 return retval;
 248
 249         printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
 250                            " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
 251                         port,
 252                         addr.addr_bytes[0], addr.addr_bytes[1],
 253                         addr.addr_bytes[2], addr.addr_bytes[3],
 254                         addr.addr_bytes[4], addr.addr_bytes[5]);
 255
 256         /* Enable RX in promiscuous mode for the Ethernet device. */
 257         retval = rte_eth_promiscuous_enable(port);
 258         if (retval != 0)
 259                 return retval;
 260
 261         return 0;
 262 }
 263
 264 /*
 265  * The lcore main. This is the main thread that does the work, reading from
 266  * an input port classifying the packets and writing to an output port.
 267  */
 268 static __attribute__((noreturn)) void
 269 lcore_main(struct flow_classifier *cls_app)
 270 {
 271         uint16_t port;
 272         int ret;
 273         int i = 0;
 274
 275         ret = rte_flow_classify_table_entry_delete(cls_app->cls,
 276                         rules[7]);
 277         if (ret)
 278                 printf("table_entry_delete failed [7] %d\n\n", ret);
 279         else
 280                 printf("table_entry_delete succeeded [7]\n\n");
 281
 282         /*
 283          * Check that the port is on the same NUMA node as the polling thread
 284          * for best performance.
 285          */
 286         RTE_ETH_FOREACH_DEV(port)
 287                 if (rte_eth_dev_socket_id(port) > 0 &&
 288                         rte_eth_dev_socket_id(port) != (int)rte_socket_id()) {
 289                         printf("\n\n");
 290                         printf("WARNING: port %u is on remote NUMA node\n",
 291                                port);
 292                         printf("to polling thread.\n");
 293                         printf("Performance will not be optimal.\n");
 294                 }
 295         printf("\nCore %u forwarding packets. ", rte_lcore_id());
 296         printf("[Ctrl+C to quit]\n");
 297
 298         /* Run until the application is quit or killed. */
 299         for (;;) {
 300                 /*
 301                  * Receive packets on a port, classify them and forward them
 302                  * on the paired port.
 303                  * The mapping is 0 -> 1, 1 -> 0, 2 -> 3, 3 -> 2, etc.
 304                  */
 305                 RTE_ETH_FOREACH_DEV(port) {
 306                         /* Get burst of RX packets, from first port of pair. */
 307                         struct rte_mbuf *bufs[BURST_SIZE];
 308                         const uint16_t nb_rx = rte_eth_rx_burst(port, 0,
 309                                         bufs, BURST_SIZE);
 310
 311                         if (unlikely(nb_rx == 0))
 312                                 continue;
 313
 314                         for (i = 0; i < MAX_NUM_CLASSIFY; i++) {
 315                                 if (rules[i]) {
 316                                         ret = rte_flow_classifier_query(
 317                                                 cls_app->cls,
 318                                                 bufs, nb_rx, rules[i],
 319                                                 &classify_stats);
 320                                         if (ret)
 321                                                 printf(
 322                                                         "rule [%d] query failed ret [%d]\n\n",
 323                                                         i, ret);
 324                                         else {
 325                                                 printf(
 326                                                 "rule[%d] count=%"PRIu64"\n",
 327                                                 i, ntuple_stats.counter1);
 328
 329                                                 printf("proto = %d\n",
 330                                                 ntuple_stats.ipv4_5tuple.proto);
 331                                         }
 332                                 }
 333                         }
 334
 335                         /* Send burst of TX packets, to second port of pair. */
 336                         const uint16_t nb_tx = rte_eth_tx_burst(port ^ 1, 0,
 337                                         bufs, nb_rx);
 338
 339                         /* Free any unsent packets. */
 340                         if (unlikely(nb_tx < nb_rx)) {
 341                                 uint16_t buf;
 342
 343                                 for (buf = nb_tx; buf < nb_rx; buf++)
 344                                         rte_pktmbuf_free(bufs[buf]);
 345                         }
 346                 }
 347         }
 348 }
 349
 350 /*
 351  * Parse IPv4 5 tuple rules file, ipv4_rules_file.txt.
 352  * Expected format:
 353  * <src_ipv4_addr>'/'<masklen> <space> \
 354  * <dst_ipv4_addr>'/'<masklen> <space> \
 355  * <src_port> <space> ":" <src_port_mask> <space> \
 356  * <dst_port> <space> ":" <dst_port_mask> <space> \
 357  * <proto>'/'<proto_mask> <space> \
 358  * <priority>
 359  */
 360
 361 static int
 362 get_cb_field(char **in, uint32_t *fd, int base, unsigned long lim,
 363                 char dlm)
 364 {
 365         unsigned long val;
 366         char *end;
 367
 368         errno = 0;
 369         val = strtoul(*in, &end, base);
 370         if (errno != 0 || end[0] != dlm || val > lim)
 371                 return -EINVAL;
 372         *fd = (uint32_t)val;
 373         *in = end + 1;
 374         return 0;
 375 }
 376
 377 static int
 378 parse_ipv4_net(char *in, uint32_t *addr, uint32_t *mask_len)
 379 {
 380         uint32_t a, b, c, d, m;
 381
 382         if (get_cb_field(&in, &a, 0, UINT8_MAX, '.'))
 383                 return -EINVAL;
 384         if (get_cb_field(&in, &b, 0, UINT8_MAX, '.'))
 385                 return -EINVAL;
 386         if (get_cb_field(&in, &c, 0, UINT8_MAX, '.'))
 387                 return -EINVAL;
 388         if (get_cb_field(&in, &d, 0, UINT8_MAX, '/'))
 389                 return -EINVAL;
 390         if (get_cb_field(&in, &m, 0, sizeof(uint32_t) * CHAR_BIT, 0))
 391                 return -EINVAL;
 392
 393         addr[0] = RTE_IPV4(a, b, c, d);
 394         mask_len[0] = m;
 395         return 0;
 396 }
 397
 398 static int
 399 parse_ipv4_5tuple_rule(char *str, struct rte_eth_ntuple_filter *ntuple_filter)
 400 {
 401         int i, ret;
 402         char *s, *sp, *in[CB_FLD_NUM];
 403         static const char *dlm = " \t\n";
 404         int dim = CB_FLD_NUM;
 405         uint32_t temp;
 406
 407         s = str;
 408         for (i = 0; i != dim; i++, s = NULL) {
 409                 in[i] = strtok_r(s, dlm, &sp);
 410                 if (in[i] == NULL)
 411                         return -EINVAL;
 412         }
 413
 414         ret = parse_ipv4_net(in[CB_FLD_SRC_ADDR],
 415                         &ntuple_filter->src_ip,
 416                         &ntuple_filter->src_ip_mask);
 417         if (ret != 0) {
 418                 flow_classify_log("failed to read source address/mask: %s\n",
 419                         in[CB_FLD_SRC_ADDR]);
 420                 return ret;
 421         }
 422
 423         ret = parse_ipv4_net(in[CB_FLD_DST_ADDR],
 424                         &ntuple_filter->dst_ip,
 425                         &ntuple_filter->dst_ip_mask);
 426         if (ret != 0) {
 427                 flow_classify_log("failed to read source address/mask: %s\n",
 428                         in[CB_FLD_DST_ADDR]);
 429                 return ret;
 430         }
 431
 432         if (get_cb_field(&in[CB_FLD_SRC_PORT], &temp, 0, UINT16_MAX, 0))
 433                 return -EINVAL;
 434         ntuple_filter->src_port = (uint16_t)temp;
 435
 436         if (strncmp(in[CB_FLD_SRC_PORT_DLM], cb_port_delim,
 437                         sizeof(cb_port_delim)) != 0)
 438                 return -EINVAL;
 439
 440         if (get_cb_field(&in[CB_FLD_SRC_PORT_MASK], &temp, 0, UINT16_MAX, 0))
 441                 return -EINVAL;
 442         ntuple_filter->src_port_mask = (uint16_t)temp;
 443
 444         if (get_cb_field(&in[CB_FLD_DST_PORT], &temp, 0, UINT16_MAX, 0))
 445                 return -EINVAL;
 446         ntuple_filter->dst_port = (uint16_t)temp;
 447
 448         if (strncmp(in[CB_FLD_DST_PORT_DLM], cb_port_delim,
 449                         sizeof(cb_port_delim)) != 0)
 450                 return -EINVAL;
 451
 452         if (get_cb_field(&in[CB_FLD_DST_PORT_MASK], &temp, 0, UINT16_MAX, 0))
 453                 return -EINVAL;
 454         ntuple_filter->dst_port_mask = (uint16_t)temp;
 455
 456         if (get_cb_field(&in[CB_FLD_PROTO], &temp, 0, UINT8_MAX, '/'))
 457                 return -EINVAL;
 458         ntuple_filter->proto = (uint8_t)temp;
 459
 460         if (get_cb_field(&in[CB_FLD_PROTO], &temp, 0, UINT8_MAX, 0))
 461                 return -EINVAL;
 462         ntuple_filter->proto_mask = (uint8_t)temp;
 463
 464         if (get_cb_field(&in[CB_FLD_PRIORITY], &temp, 0, UINT16_MAX, 0))
 465                 return -EINVAL;
 466         ntuple_filter->priority = (uint16_t)temp;
 467         if (ntuple_filter->priority > FLOW_CLASSIFY_MAX_PRIORITY)
 468                 ret = -EINVAL;
 469
 470         return ret;
 471 }
 472
 473 /* Bypass comment and empty lines */
 474 static inline int
 475 is_bypass_line(char *buff)
 476 {
 477         int i = 0;
 478
 479         /* comment line */
 480         if (buff[0] == COMMENT_LEAD_CHAR)
 481                 return 1;
 482         /* empty line */
 483         while (buff[i] != '\0') {
 484                 if (!isspace(buff[i]))
 485                         return 0;
 486                 i++;
 487         }
 488         return 1;
 489 }
 490
 491 static uint32_t
 492 convert_depth_to_bitmask(uint32_t depth_val)
 493 {
 494         uint32_t bitmask = 0;
 495         int i, j;
 496
 497         for (i = depth_val, j = 0; i > 0; i--, j++)
 498                 bitmask |= (1 << (31 - j));
 499         return bitmask;
 500 }
 501
 502 static int
 503 add_classify_rule(struct rte_eth_ntuple_filter *ntuple_filter,
 504                 struct flow_classifier *cls_app)
 505 {
 506         int ret = -1;
 507         int key_found;
 508         struct rte_flow_error error;
 509         struct rte_flow_item_ipv4 ipv4_spec;
 510         struct rte_flow_item_ipv4 ipv4_mask;
 511         struct rte_flow_item ipv4_udp_item;
 512         struct rte_flow_item ipv4_tcp_item;
 513         struct rte_flow_item ipv4_sctp_item;
 514         struct rte_flow_item_udp udp_spec;
 515         struct rte_flow_item_udp udp_mask;
 516         struct rte_flow_item udp_item;
 517         struct rte_flow_item_tcp tcp_spec;
 518         struct rte_flow_item_tcp tcp_mask;
 519         struct rte_flow_item tcp_item;
 520         struct rte_flow_item_sctp sctp_spec;
 521         struct rte_flow_item_sctp sctp_mask;
 522         struct rte_flow_item sctp_item;
 523         struct rte_flow_item pattern_ipv4_5tuple[4];
 524         struct rte_flow_classify_rule *rule;
 525         uint8_t ipv4_proto;
 526
 527         if (num_classify_rules >= MAX_NUM_CLASSIFY) {
 528                 printf(
 529                         "\nINFO:  classify rule capacity %d reached\n",
 530                         num_classify_rules);
 531                 return ret;
 532         }
 533
 534         /* set up parameters for validate and add */
 535         memset(&ipv4_spec, 0, sizeof(ipv4_spec));
 536         ipv4_spec.hdr.next_proto_id = ntuple_filter->proto;
 537         ipv4_spec.hdr.src_addr = ntuple_filter->src_ip;
 538         ipv4_spec.hdr.dst_addr = ntuple_filter->dst_ip;
 539         ipv4_proto = ipv4_spec.hdr.next_proto_id;
 540
 541         memset(&ipv4_mask, 0, sizeof(ipv4_mask));
 542         ipv4_mask.hdr.next_proto_id = ntuple_filter->proto_mask;
 543         ipv4_mask.hdr.src_addr = ntuple_filter->src_ip_mask;
 544         ipv4_mask.hdr.src_addr =
 545                 convert_depth_to_bitmask(ipv4_mask.hdr.src_addr);
 546         ipv4_mask.hdr.dst_addr = ntuple_filter->dst_ip_mask;
 547         ipv4_mask.hdr.dst_addr =
 548                 convert_depth_to_bitmask(ipv4_mask.hdr.dst_addr);
 549
 550         switch (ipv4_proto) {
 551         case IPPROTO_UDP:
 552                 ipv4_udp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 553                 ipv4_udp_item.spec = &ipv4_spec;
 554                 ipv4_udp_item.mask = &ipv4_mask;
 555                 ipv4_udp_item.last = NULL;
 556
 557                 udp_spec.hdr.src_port = ntuple_filter->src_port;
 558                 udp_spec.hdr.dst_port = ntuple_filter->dst_port;
 559                 udp_spec.hdr.dgram_len = 0;
 560                 udp_spec.hdr.dgram_cksum = 0;
 561
 562                 udp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 563                 udp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 564                 udp_mask.hdr.dgram_len = 0;
 565                 udp_mask.hdr.dgram_cksum = 0;
 566
 567                 udp_item.type = RTE_FLOW_ITEM_TYPE_UDP;
 568                 udp_item.spec = &udp_spec;
 569                 udp_item.mask = &udp_mask;
 570                 udp_item.last = NULL;
 571
 572                 attr.priority = ntuple_filter->priority;
 573                 pattern_ipv4_5tuple[1] = ipv4_udp_item;
 574                 pattern_ipv4_5tuple[2] = udp_item;
 575                 break;
 576         case IPPROTO_TCP:
 577                 ipv4_tcp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 578                 ipv4_tcp_item.spec = &ipv4_spec;
 579                 ipv4_tcp_item.mask = &ipv4_mask;
 580                 ipv4_tcp_item.last = NULL;
 581
 582                 memset(&tcp_spec, 0, sizeof(tcp_spec));
 583                 tcp_spec.hdr.src_port = ntuple_filter->src_port;
 584                 tcp_spec.hdr.dst_port = ntuple_filter->dst_port;
 585
 586                 memset(&tcp_mask, 0, sizeof(tcp_mask));
 587                 tcp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 588                 tcp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 589
 590                 tcp_item.type = RTE_FLOW_ITEM_TYPE_TCP;
 591                 tcp_item.spec = &tcp_spec;
 592                 tcp_item.mask = &tcp_mask;
 593                 tcp_item.last = NULL;
 594
 595                 attr.priority = ntuple_filter->priority;
 596                 pattern_ipv4_5tuple[1] = ipv4_tcp_item;
 597                 pattern_ipv4_5tuple[2] = tcp_item;
 598                 break;
 599         case IPPROTO_SCTP:
 600                 ipv4_sctp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 601                 ipv4_sctp_item.spec = &ipv4_spec;
 602                 ipv4_sctp_item.mask = &ipv4_mask;
 603                 ipv4_sctp_item.last = NULL;
 604
 605                 sctp_spec.hdr.src_port = ntuple_filter->src_port;
 606                 sctp_spec.hdr.dst_port = ntuple_filter->dst_port;
 607                 sctp_spec.hdr.cksum = 0;
 608                 sctp_spec.hdr.tag = 0;
 609
 610                 sctp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 611                 sctp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 612                 sctp_mask.hdr.cksum = 0;
 613                 sctp_mask.hdr.tag = 0;
 614
 615                 sctp_item.type = RTE_FLOW_ITEM_TYPE_SCTP;
 616                 sctp_item.spec = &sctp_spec;
 617                 sctp_item.mask = &sctp_mask;
 618                 sctp_item.last = NULL;
 619
 620                 attr.priority = ntuple_filter->priority;
 621                 pattern_ipv4_5tuple[1] = ipv4_sctp_item;
 622                 pattern_ipv4_5tuple[2] = sctp_item;
 623                 break;
 624         default:
 625                 return ret;
 626         }
 627
 628         attr.ingress = 1;
 629         pattern_ipv4_5tuple[0] = eth_item;
 630         pattern_ipv4_5tuple[3] = end_item;
 631         actions[0] = count_action;
 632         actions[1] = end_action;
 633
 634         /* Validate and add rule */
 635         ret = rte_flow_classify_validate(cls_app->cls, &attr,
 636                         pattern_ipv4_5tuple, actions, &error);
 637         if (ret) {
 638                 printf("table entry validate failed ipv4_proto = %u\n",
 639                         ipv4_proto);
 640                 return ret;
 641         }
 642
 643         rule = rte_flow_classify_table_entry_add(
 644                         cls_app->cls, &attr, pattern_ipv4_5tuple,
 645                         actions, &key_found, &error);
 646         if (rule == NULL) {
 647                 printf("table entry add failed ipv4_proto = %u\n",
 648                         ipv4_proto);
 649                 ret = -1;
 650                 return ret;
 651         }
 652
 653         rules[num_classify_rules] = rule;
 654         num_classify_rules++;
 655         return 0;
 656 }
 657
 658 static int
 659 add_rules(const char *rule_path, struct flow_classifier *cls_app)
 660 {
 661         FILE *fh;
 662         char buff[LINE_MAX];
 663         unsigned int i = 0;
 664         unsigned int total_num = 0;
 665         struct rte_eth_ntuple_filter ntuple_filter;
 666         int ret;
 667
 668         fh = fopen(rule_path, "rb");
 669         if (fh == NULL)
 670                 rte_exit(EXIT_FAILURE, "%s: fopen %s failed\n", __func__,
 671                         rule_path);
 672
 673         ret = fseek(fh, 0, SEEK_SET);
 674         if (ret)
 675                 rte_exit(EXIT_FAILURE, "%s: fseek %d failed\n", __func__,
 676                         ret);
 677
 678         i = 0;
 679         while (fgets(buff, LINE_MAX, fh) != NULL) {
 680                 i++;
 681
 682                 if (is_bypass_line(buff))
 683                         continue;
 684
 685                 if (total_num >= FLOW_CLASSIFY_MAX_RULE_NUM - 1) {
 686                         printf("\nINFO: classify rule capacity %d reached\n",
 687                                 total_num);
 688                         break;
 689                 }
 690
 691                 if (parse_ipv4_5tuple_rule(buff, &ntuple_filter) != 0)
 692                         rte_exit(EXIT_FAILURE,
 693                                 "%s Line %u: parse rules error\n",
 694                                 rule_path, i);
 695
 696                 if (add_classify_rule(&ntuple_filter, cls_app) != 0)
 697                         rte_exit(EXIT_FAILURE, "add rule error\n");
 698
 699                 total_num++;
 700         }
 701
 702         fclose(fh);
 703         return 0;
 704 }
 705
 706 /* display usage */
 707 static void
 708 print_usage(const char *prgname)
 709 {
 710         printf("%s usage:\n", prgname);
 711         printf("[EAL options] --  --"OPTION_RULE_IPV4"=FILE: ");
 712         printf("specify the ipv4 rules file.\n");
 713         printf("Each rule occupies one line in the file.\n");
 714 }
 715
 716 /* Parse the argument given in the command line of the application */
 717 static int
 718 parse_args(int argc, char **argv)
 719 {
 720         int opt, ret;
 721         char **argvopt;
 722         int option_index;
 723         char *prgname = argv[0];
 724         static struct option lgopts[] = {
 725                 {OPTION_RULE_IPV4, 1, 0, 0},
 726                 {NULL, 0, 0, 0}
 727         };
 728
 729         argvopt = argv;
 730
 731         while ((opt = getopt_long(argc, argvopt, "",
 732                                 lgopts, &option_index)) != EOF) {
 733
 734                 switch (opt) {
 735                 /* long options */
 736                 case 0:
 737                         if (!strncmp(lgopts[option_index].name,
 738                                         OPTION_RULE_IPV4,
 739                                         sizeof(OPTION_RULE_IPV4)))
 740                                 parm_config.rule_ipv4_name = optarg;
 741                         break;
 742                 default:
 743                         print_usage(prgname);
 744                         return -1;
 745                 }
 746         }
 747
 748         if (optind >= 0)
 749                 argv[optind-1] = prgname;
 750
 751         ret = optind-1;
 752         optind = 1; /* reset getopt lib */
 753         return ret;
 754 }
 755
 756 /*
 757  * The main function, which does initialization and calls the lcore_main
 758  * function.
 759  */
 760 int
 761 main(int argc, char *argv[])
 762 {
 763         struct rte_mempool *mbuf_pool;
 764         uint16_t nb_ports;
 765         uint16_t portid;
 766         int ret;
 767         int socket_id;
 768         struct rte_table_acl_params table_acl_params;
 769         struct rte_flow_classify_table_params cls_table_params;
 770         struct flow_classifier *cls_app;
 771         struct rte_flow_classifier_params cls_params;
 772         uint32_t size;
 773
 774         /* Initialize the Environment Abstraction Layer (EAL). */
 775         ret = rte_eal_init(argc, argv);
 776         if (ret < 0)
 777                 rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
 778
 779         argc -= ret;
 780         argv += ret;
 781
 782         /* parse application arguments (after the EAL ones) */
 783         ret = parse_args(argc, argv);
 784         if (ret < 0)
 785                 rte_exit(EXIT_FAILURE, "Invalid flow_classify parameters\n");
 786
 787         /* Check that there is an even number of ports to send/receive on. */
 788         nb_ports = rte_eth_dev_count_avail();
 789         if (nb_ports < 2 || (nb_ports & 1))
 790                 rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n");
 791
 792         /* Creates a new mempool in memory to hold the mbufs. */
 793         mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports,
 794                 MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 795
 796         if (mbuf_pool == NULL)
 797                 rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
 798
 799         /* Initialize all ports. */
 800         RTE_ETH_FOREACH_DEV(portid)
 801                 if (port_init(portid, mbuf_pool) != 0)
 802                         rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n",
 803                                         portid);
 804
 805         if (rte_lcore_count() > 1)
 806                 printf("\nWARNING: Too many lcores enabled. Only 1 used.\n");
 807
 808         socket_id = rte_eth_dev_socket_id(0);
 809
 810         /* Memory allocation */
 811         size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct flow_classifier_acl));
 812         cls_app = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
 813         if (cls_app == NULL)
 814                 rte_exit(EXIT_FAILURE, "Cannot allocate classifier memory\n");
 815
 816         cls_params.name = "flow_classifier";
 817         cls_params.socket_id = socket_id;
 818
 819         cls_app->cls = rte_flow_classifier_create(&cls_params);
 820         if (cls_app->cls == NULL) {
 821                 rte_free(cls_app);
 822                 rte_exit(EXIT_FAILURE, "Cannot create classifier\n");
 823         }
 824
 825         /* initialise ACL table params */
 826         table_acl_params.name = "table_acl_ipv4_5tuple";
 827         table_acl_params.n_rules = FLOW_CLASSIFY_MAX_RULE_NUM;
 828         table_acl_params.n_rule_fields = RTE_DIM(ipv4_defs);
 829         memcpy(table_acl_params.field_format, ipv4_defs, sizeof(ipv4_defs));
 830
 831         /* initialise table create params */
 832         cls_table_params.ops = &rte_table_acl_ops;
 833         cls_table_params.arg_create = &table_acl_params;
 834         cls_table_params.type = RTE_FLOW_CLASSIFY_TABLE_ACL_IP4_5TUPLE;
 835
 836         ret = rte_flow_classify_table_create(cls_app->cls, &cls_table_params);
 837         if (ret) {
 838                 rte_flow_classifier_free(cls_app->cls);
 839                 rte_free(cls_app);
 840                 rte_exit(EXIT_FAILURE, "Failed to create classifier table\n");
 841         }
 842
 843         /* read file of IPv4 5 tuple rules and initialize parameters
 844          * for rte_flow_classify_validate and rte_flow_classify_table_entry_add
 845          * API's.
 846          */
 847         if (add_rules(parm_config.rule_ipv4_name, cls_app)) {
 848                 rte_flow_classifier_free(cls_app->cls);
 849                 rte_free(cls_app);
 850                 rte_exit(EXIT_FAILURE, "Failed to add rules\n");
 851         }
 852
 853         /* Call lcore_main on the master core only. */
 854         lcore_main(cls_app);
 855
 856         return 0;
 857 }