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 = ETHER_MAX_LEN,
  65                 .ignore_offload_bitfield = 1,
  66         },
  67 };
  68
  69 struct flow_classifier {
  70         struct rte_flow_classifier *cls;
  71 };
  72
  73 struct flow_classifier_acl {
  74         struct flow_classifier cls;
  75 } __rte_cache_aligned;
  76
  77 /* ACL field definitions for IPv4 5 tuple rule */
  78
  79 enum {
  80         PROTO_FIELD_IPV4,
  81         SRC_FIELD_IPV4,
  82         DST_FIELD_IPV4,
  83         SRCP_FIELD_IPV4,
  84         DSTP_FIELD_IPV4,
  85         NUM_FIELDS_IPV4
  86 };
  87
  88 enum {
  89         PROTO_INPUT_IPV4,
  90         SRC_INPUT_IPV4,
  91         DST_INPUT_IPV4,
  92         SRCP_DESTP_INPUT_IPV4
  93 };
  94
  95 static struct rte_acl_field_def ipv4_defs[NUM_FIELDS_IPV4] = {
  96         /* first input field - always one byte long. */
  97         {
  98                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
  99                 .size = sizeof(uint8_t),
 100                 .field_index = PROTO_FIELD_IPV4,
 101                 .input_index = PROTO_INPUT_IPV4,
 102                 .offset = sizeof(struct ether_hdr) +
 103                         offsetof(struct ipv4_hdr, next_proto_id),
 104         },
 105         /* next input field (IPv4 source address) - 4 consecutive bytes. */
 106         {
 107                 /* rte_flow uses a bit mask for IPv4 addresses */
 108                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 109                 .size = sizeof(uint32_t),
 110                 .field_index = SRC_FIELD_IPV4,
 111                 .input_index = SRC_INPUT_IPV4,
 112                 .offset = sizeof(struct ether_hdr) +
 113                         offsetof(struct ipv4_hdr, src_addr),
 114         },
 115         /* next input field (IPv4 destination address) - 4 consecutive bytes. */
 116         {
 117                 /* rte_flow uses a bit mask for IPv4 addresses */
 118                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 119                 .size = sizeof(uint32_t),
 120                 .field_index = DST_FIELD_IPV4,
 121                 .input_index = DST_INPUT_IPV4,
 122                 .offset = sizeof(struct ether_hdr) +
 123                         offsetof(struct ipv4_hdr, dst_addr),
 124         },
 125         /*
 126          * Next 2 fields (src & dst ports) form 4 consecutive bytes.
 127          * They share the same input index.
 128          */
 129         {
 130                 /* rte_flow uses a bit mask for protocol ports */
 131                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 132                 .size = sizeof(uint16_t),
 133                 .field_index = SRCP_FIELD_IPV4,
 134                 .input_index = SRCP_DESTP_INPUT_IPV4,
 135                 .offset = sizeof(struct ether_hdr) +
 136                         sizeof(struct ipv4_hdr) +
 137                         offsetof(struct tcp_hdr, src_port),
 138         },
 139         {
 140                 /* rte_flow uses a bit mask for protocol ports */
 141                 .type = RTE_ACL_FIELD_TYPE_BITMASK,
 142                 .size = sizeof(uint16_t),
 143                 .field_index = DSTP_FIELD_IPV4,
 144                 .input_index = SRCP_DESTP_INPUT_IPV4,
 145                 .offset = sizeof(struct ether_hdr) +
 146                         sizeof(struct ipv4_hdr) +
 147                         offsetof(struct tcp_hdr, dst_port),
 148         },
 149 };
 150
 151 /* flow classify data */
 152 static int num_classify_rules;
 153 static struct rte_flow_classify_rule *rules[MAX_NUM_CLASSIFY];
 154 static struct rte_flow_classify_ipv4_5tuple_stats ntuple_stats;
 155 static struct rte_flow_classify_stats classify_stats = {
 156                 .stats = (void **)&ntuple_stats
 157 };
 158
 159 /* parameters for rte_flow_classify_validate and
 160  * rte_flow_classify_table_entry_add functions
 161  */
 162
 163 static struct rte_flow_item  eth_item = { RTE_FLOW_ITEM_TYPE_ETH,
 164         0, 0, 0 };
 165 static struct rte_flow_item  end_item = { RTE_FLOW_ITEM_TYPE_END,
 166         0, 0, 0 };
 167
 168 /* sample actions:
 169  * "actions count / end"
 170  */
 171 struct rte_flow_query_count count = {
 172         .reset = 1,
 173         .hits_set = 1,
 174         .bytes_set = 1,
 175         .hits = 0,
 176         .bytes = 0,
 177 };
 178 static struct rte_flow_action count_action = { RTE_FLOW_ACTION_TYPE_COUNT,
 179         &count};
 180 static struct rte_flow_action end_action = { RTE_FLOW_ACTION_TYPE_END, 0};
 181 static struct rte_flow_action actions[2];
 182
 183 /* sample attributes */
 184 static struct rte_flow_attr attr;
 185
 186 /* flow_classify.c: * Based on DPDK skeleton forwarding example. */
 187
 188 /*
 189  * Initializes a given port using global settings and with the RX buffers
 190  * coming from the mbuf_pool passed as a parameter.
 191  */
 192 static inline int
 193 port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 194 {
 195         struct rte_eth_conf port_conf = port_conf_default;
 196         struct ether_addr addr;
 197         const uint16_t rx_rings = 1, tx_rings = 1;
 198         int retval;
 199         uint16_t q;
 200         struct rte_eth_dev_info dev_info;
 201         struct rte_eth_txconf txconf;
 202
 203         if (port >= rte_eth_dev_count())
 204                 return -1;
 205
 206         rte_eth_dev_info_get(port, &dev_info);
 207         if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 208                 port_conf.txmode.offloads |=
 209                         DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 210
 211         /* Configure the Ethernet device. */
 212         retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
 213         if (retval != 0)
 214                 return retval;
 215
 216         /* Allocate and set up 1 RX queue per Ethernet port. */
 217         for (q = 0; q < rx_rings; q++) {
 218                 retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
 219                                 rte_eth_dev_socket_id(port), NULL, mbuf_pool);
 220                 if (retval < 0)
 221                         return retval;
 222         }
 223
 224         txconf = dev_info.default_txconf;
 225         txconf.txq_flags = ETH_TXQ_FLAGS_IGNORE;
 226         txconf.offloads = port_conf.txmode.offloads;
 227         /* Allocate and set up 1 TX queue per Ethernet port. */
 228         for (q = 0; q < tx_rings; q++) {
 229                 retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
 230                                 rte_eth_dev_socket_id(port), &txconf);
 231                 if (retval < 0)
 232                         return retval;
 233         }
 234
 235         /* Start the Ethernet port. */
 236         retval = rte_eth_dev_start(port);
 237         if (retval < 0)
 238                 return retval;
 239
 240         /* Display the port MAC address. */
 241         rte_eth_macaddr_get(port, &addr);
 242         printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
 243                            " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
 244                         port,
 245                         addr.addr_bytes[0], addr.addr_bytes[1],
 246                         addr.addr_bytes[2], addr.addr_bytes[3],
 247                         addr.addr_bytes[4], addr.addr_bytes[5]);
 248
 249         /* Enable RX in promiscuous mode for the Ethernet device. */
 250         rte_eth_promiscuous_enable(port);
 251
 252         return 0;
 253 }
 254
 255 /*
 256  * The lcore main. This is the main thread that does the work, reading from
 257  * an input port classifying the packets and writing to an output port.
 258  */
 259 static __attribute__((noreturn)) void
 260 lcore_main(struct flow_classifier *cls_app)
 261 {
 262         const uint8_t nb_ports = rte_eth_dev_count();
 263         uint8_t port;
 264         int ret;
 265         int i = 0;
 266
 267         ret = rte_flow_classify_table_entry_delete(cls_app->cls,
 268                         rules[7]);
 269         if (ret)
 270                 printf("table_entry_delete failed [7] %d\n\n", ret);
 271         else
 272                 printf("table_entry_delete succeeded [7]\n\n");
 273
 274         /*
 275          * Check that the port is on the same NUMA node as the polling thread
 276          * for best performance.
 277          */
 278         for (port = 0; port < nb_ports; port++)
 279                 if (rte_eth_dev_socket_id(port) > 0 &&
 280                         rte_eth_dev_socket_id(port) != (int)rte_socket_id()) {
 281                         printf("\n\n");
 282                         printf("WARNING: port %u is on remote NUMA node\n",
 283                                port);
 284                         printf("to polling thread.\n");
 285                         printf("Performance will not be optimal.\n");
 286                 }
 287         printf("\nCore %u forwarding packets. ", rte_lcore_id());
 288         printf("[Ctrl+C to quit]\n");
 289
 290         /* Run until the application is quit or killed. */
 291         for (;;) {
 292                 /*
 293                  * Receive packets on a port, classify them and forward them
 294                  * on the paired port.
 295                  * The mapping is 0 -> 1, 1 -> 0, 2 -> 3, 3 -> 2, etc.
 296                  */
 297                 for (port = 0; port < nb_ports; port++) {
 298                         /* Get burst of RX packets, from first port of pair. */
 299                         struct rte_mbuf *bufs[BURST_SIZE];
 300                         const uint16_t nb_rx = rte_eth_rx_burst(port, 0,
 301                                         bufs, BURST_SIZE);
 302
 303                         if (unlikely(nb_rx == 0))
 304                                 continue;
 305
 306                         for (i = 0; i < MAX_NUM_CLASSIFY; i++) {
 307                                 if (rules[i]) {
 308                                         ret = rte_flow_classifier_query(
 309                                                 cls_app->cls,
 310                                                 bufs, nb_rx, rules[i],
 311                                                 &classify_stats);
 312                                         if (ret)
 313                                                 printf(
 314                                                         "rule [%d] query failed ret [%d]\n\n",
 315                                                         i, ret);
 316                                         else {
 317                                                 printf(
 318                                                 "rule[%d] count=%"PRIu64"\n",
 319                                                 i, ntuple_stats.counter1);
 320
 321                                                 printf("proto = %d\n",
 322                                                 ntuple_stats.ipv4_5tuple.proto);
 323                                         }
 324                                 }
 325                         }
 326
 327                         /* Send burst of TX packets, to second port of pair. */
 328                         const uint16_t nb_tx = rte_eth_tx_burst(port ^ 1, 0,
 329                                         bufs, nb_rx);
 330
 331                         /* Free any unsent packets. */
 332                         if (unlikely(nb_tx < nb_rx)) {
 333                                 uint16_t buf;
 334
 335                                 for (buf = nb_tx; buf < nb_rx; buf++)
 336                                         rte_pktmbuf_free(bufs[buf]);
 337                         }
 338                 }
 339         }
 340 }
 341
 342 /*
 343  * Parse IPv4 5 tuple rules file, ipv4_rules_file.txt.
 344  * Expected format:
 345  * <src_ipv4_addr>'/'<masklen> <space> \
 346  * <dst_ipv4_addr>'/'<masklen> <space> \
 347  * <src_port> <space> ":" <src_port_mask> <space> \
 348  * <dst_port> <space> ":" <dst_port_mask> <space> \
 349  * <proto>'/'<proto_mask> <space> \
 350  * <priority>
 351  */
 352
 353 static int
 354 get_cb_field(char **in, uint32_t *fd, int base, unsigned long lim,
 355                 char dlm)
 356 {
 357         unsigned long val;
 358         char *end;
 359
 360         errno = 0;
 361         val = strtoul(*in, &end, base);
 362         if (errno != 0 || end[0] != dlm || val > lim)
 363                 return -EINVAL;
 364         *fd = (uint32_t)val;
 365         *in = end + 1;
 366         return 0;
 367 }
 368
 369 static int
 370 parse_ipv4_net(char *in, uint32_t *addr, uint32_t *mask_len)
 371 {
 372         uint32_t a, b, c, d, m;
 373
 374         if (get_cb_field(&in, &a, 0, UINT8_MAX, '.'))
 375                 return -EINVAL;
 376         if (get_cb_field(&in, &b, 0, UINT8_MAX, '.'))
 377                 return -EINVAL;
 378         if (get_cb_field(&in, &c, 0, UINT8_MAX, '.'))
 379                 return -EINVAL;
 380         if (get_cb_field(&in, &d, 0, UINT8_MAX, '/'))
 381                 return -EINVAL;
 382         if (get_cb_field(&in, &m, 0, sizeof(uint32_t) * CHAR_BIT, 0))
 383                 return -EINVAL;
 384
 385         addr[0] = IPv4(a, b, c, d);
 386         mask_len[0] = m;
 387         return 0;
 388 }
 389
 390 static int
 391 parse_ipv4_5tuple_rule(char *str, struct rte_eth_ntuple_filter *ntuple_filter)
 392 {
 393         int i, ret;
 394         char *s, *sp, *in[CB_FLD_NUM];
 395         static const char *dlm = " \t\n";
 396         int dim = CB_FLD_NUM;
 397         uint32_t temp;
 398
 399         s = str;
 400         for (i = 0; i != dim; i++, s = NULL) {
 401                 in[i] = strtok_r(s, dlm, &sp);
 402                 if (in[i] == NULL)
 403                         return -EINVAL;
 404         }
 405
 406         ret = parse_ipv4_net(in[CB_FLD_SRC_ADDR],
 407                         &ntuple_filter->src_ip,
 408                         &ntuple_filter->src_ip_mask);
 409         if (ret != 0) {
 410                 flow_classify_log("failed to read source address/mask: %s\n",
 411                         in[CB_FLD_SRC_ADDR]);
 412                 return ret;
 413         }
 414
 415         ret = parse_ipv4_net(in[CB_FLD_DST_ADDR],
 416                         &ntuple_filter->dst_ip,
 417                         &ntuple_filter->dst_ip_mask);
 418         if (ret != 0) {
 419                 flow_classify_log("failed to read source address/mask: %s\n",
 420                         in[CB_FLD_DST_ADDR]);
 421                 return ret;
 422         }
 423
 424         if (get_cb_field(&in[CB_FLD_SRC_PORT], &temp, 0, UINT16_MAX, 0))
 425                 return -EINVAL;
 426         ntuple_filter->src_port = (uint16_t)temp;
 427
 428         if (strncmp(in[CB_FLD_SRC_PORT_DLM], cb_port_delim,
 429                         sizeof(cb_port_delim)) != 0)
 430                 return -EINVAL;
 431
 432         if (get_cb_field(&in[CB_FLD_SRC_PORT_MASK], &temp, 0, UINT16_MAX, 0))
 433                 return -EINVAL;
 434         ntuple_filter->src_port_mask = (uint16_t)temp;
 435
 436         if (get_cb_field(&in[CB_FLD_DST_PORT], &temp, 0, UINT16_MAX, 0))
 437                 return -EINVAL;
 438         ntuple_filter->dst_port = (uint16_t)temp;
 439
 440         if (strncmp(in[CB_FLD_DST_PORT_DLM], cb_port_delim,
 441                         sizeof(cb_port_delim)) != 0)
 442                 return -EINVAL;
 443
 444         if (get_cb_field(&in[CB_FLD_DST_PORT_MASK], &temp, 0, UINT16_MAX, 0))
 445                 return -EINVAL;
 446         ntuple_filter->dst_port_mask = (uint16_t)temp;
 447
 448         if (get_cb_field(&in[CB_FLD_PROTO], &temp, 0, UINT8_MAX, '/'))
 449                 return -EINVAL;
 450         ntuple_filter->proto = (uint8_t)temp;
 451
 452         if (get_cb_field(&in[CB_FLD_PROTO], &temp, 0, UINT8_MAX, 0))
 453                 return -EINVAL;
 454         ntuple_filter->proto_mask = (uint8_t)temp;
 455
 456         if (get_cb_field(&in[CB_FLD_PRIORITY], &temp, 0, UINT16_MAX, 0))
 457                 return -EINVAL;
 458         ntuple_filter->priority = (uint16_t)temp;
 459         if (ntuple_filter->priority > FLOW_CLASSIFY_MAX_PRIORITY)
 460                 ret = -EINVAL;
 461
 462         return ret;
 463 }
 464
 465 /* Bypass comment and empty lines */
 466 static inline int
 467 is_bypass_line(char *buff)
 468 {
 469         int i = 0;
 470
 471         /* comment line */
 472         if (buff[0] == COMMENT_LEAD_CHAR)
 473                 return 1;
 474         /* empty line */
 475         while (buff[i] != '\0') {
 476                 if (!isspace(buff[i]))
 477                         return 0;
 478                 i++;
 479         }
 480         return 1;
 481 }
 482
 483 static uint32_t
 484 convert_depth_to_bitmask(uint32_t depth_val)
 485 {
 486         uint32_t bitmask = 0;
 487         int i, j;
 488
 489         for (i = depth_val, j = 0; i > 0; i--, j++)
 490                 bitmask |= (1 << (31 - j));
 491         return bitmask;
 492 }
 493
 494 static int
 495 add_classify_rule(struct rte_eth_ntuple_filter *ntuple_filter,
 496                 struct flow_classifier *cls_app)
 497 {
 498         int ret = -1;
 499         int key_found;
 500         struct rte_flow_error error;
 501         struct rte_flow_item_ipv4 ipv4_spec;
 502         struct rte_flow_item_ipv4 ipv4_mask;
 503         struct rte_flow_item ipv4_udp_item;
 504         struct rte_flow_item ipv4_tcp_item;
 505         struct rte_flow_item ipv4_sctp_item;
 506         struct rte_flow_item_udp udp_spec;
 507         struct rte_flow_item_udp udp_mask;
 508         struct rte_flow_item udp_item;
 509         struct rte_flow_item_tcp tcp_spec;
 510         struct rte_flow_item_tcp tcp_mask;
 511         struct rte_flow_item tcp_item;
 512         struct rte_flow_item_sctp sctp_spec;
 513         struct rte_flow_item_sctp sctp_mask;
 514         struct rte_flow_item sctp_item;
 515         struct rte_flow_item pattern_ipv4_5tuple[4];
 516         struct rte_flow_classify_rule *rule;
 517         uint8_t ipv4_proto;
 518
 519         if (num_classify_rules >= MAX_NUM_CLASSIFY) {
 520                 printf(
 521                         "\nINFO:  classify rule capacity %d reached\n",
 522                         num_classify_rules);
 523                 return ret;
 524         }
 525
 526         /* set up parameters for validate and add */
 527         memset(&ipv4_spec, 0, sizeof(ipv4_spec));
 528         ipv4_spec.hdr.next_proto_id = ntuple_filter->proto;
 529         ipv4_spec.hdr.src_addr = ntuple_filter->src_ip;
 530         ipv4_spec.hdr.dst_addr = ntuple_filter->dst_ip;
 531         ipv4_proto = ipv4_spec.hdr.next_proto_id;
 532
 533         memset(&ipv4_mask, 0, sizeof(ipv4_mask));
 534         ipv4_mask.hdr.next_proto_id = ntuple_filter->proto_mask;
 535         ipv4_mask.hdr.src_addr = ntuple_filter->src_ip_mask;
 536         ipv4_mask.hdr.src_addr =
 537                 convert_depth_to_bitmask(ipv4_mask.hdr.src_addr);
 538         ipv4_mask.hdr.dst_addr = ntuple_filter->dst_ip_mask;
 539         ipv4_mask.hdr.dst_addr =
 540                 convert_depth_to_bitmask(ipv4_mask.hdr.dst_addr);
 541
 542         switch (ipv4_proto) {
 543         case IPPROTO_UDP:
 544                 ipv4_udp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 545                 ipv4_udp_item.spec = &ipv4_spec;
 546                 ipv4_udp_item.mask = &ipv4_mask;
 547                 ipv4_udp_item.last = NULL;
 548
 549                 udp_spec.hdr.src_port = ntuple_filter->src_port;
 550                 udp_spec.hdr.dst_port = ntuple_filter->dst_port;
 551                 udp_spec.hdr.dgram_len = 0;
 552                 udp_spec.hdr.dgram_cksum = 0;
 553
 554                 udp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 555                 udp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 556                 udp_mask.hdr.dgram_len = 0;
 557                 udp_mask.hdr.dgram_cksum = 0;
 558
 559                 udp_item.type = RTE_FLOW_ITEM_TYPE_UDP;
 560                 udp_item.spec = &udp_spec;
 561                 udp_item.mask = &udp_mask;
 562                 udp_item.last = NULL;
 563
 564                 attr.priority = ntuple_filter->priority;
 565                 pattern_ipv4_5tuple[1] = ipv4_udp_item;
 566                 pattern_ipv4_5tuple[2] = udp_item;
 567                 break;
 568         case IPPROTO_TCP:
 569                 ipv4_tcp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 570                 ipv4_tcp_item.spec = &ipv4_spec;
 571                 ipv4_tcp_item.mask = &ipv4_mask;
 572                 ipv4_tcp_item.last = NULL;
 573
 574                 memset(&tcp_spec, 0, sizeof(tcp_spec));
 575                 tcp_spec.hdr.src_port = ntuple_filter->src_port;
 576                 tcp_spec.hdr.dst_port = ntuple_filter->dst_port;
 577
 578                 memset(&tcp_mask, 0, sizeof(tcp_mask));
 579                 tcp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 580                 tcp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 581
 582                 tcp_item.type = RTE_FLOW_ITEM_TYPE_TCP;
 583                 tcp_item.spec = &tcp_spec;
 584                 tcp_item.mask = &tcp_mask;
 585                 tcp_item.last = NULL;
 586
 587                 attr.priority = ntuple_filter->priority;
 588                 pattern_ipv4_5tuple[1] = ipv4_tcp_item;
 589                 pattern_ipv4_5tuple[2] = tcp_item;
 590                 break;
 591         case IPPROTO_SCTP:
 592                 ipv4_sctp_item.type = RTE_FLOW_ITEM_TYPE_IPV4;
 593                 ipv4_sctp_item.spec = &ipv4_spec;
 594                 ipv4_sctp_item.mask = &ipv4_mask;
 595                 ipv4_sctp_item.last = NULL;
 596
 597                 sctp_spec.hdr.src_port = ntuple_filter->src_port;
 598                 sctp_spec.hdr.dst_port = ntuple_filter->dst_port;
 599                 sctp_spec.hdr.cksum = 0;
 600                 sctp_spec.hdr.tag = 0;
 601
 602                 sctp_mask.hdr.src_port = ntuple_filter->src_port_mask;
 603                 sctp_mask.hdr.dst_port = ntuple_filter->dst_port_mask;
 604                 sctp_mask.hdr.cksum = 0;
 605                 sctp_mask.hdr.tag = 0;
 606
 607                 sctp_item.type = RTE_FLOW_ITEM_TYPE_SCTP;
 608                 sctp_item.spec = &sctp_spec;
 609                 sctp_item.mask = &sctp_mask;
 610                 sctp_item.last = NULL;
 611
 612                 attr.priority = ntuple_filter->priority;
 613                 pattern_ipv4_5tuple[1] = ipv4_sctp_item;
 614                 pattern_ipv4_5tuple[2] = sctp_item;
 615                 break;
 616         default:
 617                 return ret;
 618         }
 619
 620         attr.ingress = 1;
 621         pattern_ipv4_5tuple[0] = eth_item;
 622         pattern_ipv4_5tuple[3] = end_item;
 623         actions[0] = count_action;
 624         actions[1] = end_action;
 625
 626         /* Validate and add rule */
 627         ret = rte_flow_classify_validate(cls_app->cls, &attr,
 628                         pattern_ipv4_5tuple, actions, &error);
 629         if (ret) {
 630                 printf("table entry validate failed ipv4_proto = %u\n",
 631                         ipv4_proto);
 632                 return ret;
 633         }
 634
 635         rule = rte_flow_classify_table_entry_add(
 636                         cls_app->cls, &attr, pattern_ipv4_5tuple,
 637                         actions, &key_found, &error);
 638         if (rule == NULL) {
 639                 printf("table entry add failed ipv4_proto = %u\n",
 640                         ipv4_proto);
 641                 ret = -1;
 642                 return ret;
 643         }
 644
 645         rules[num_classify_rules] = rule;
 646         num_classify_rules++;
 647         return 0;
 648 }
 649
 650 static int
 651 add_rules(const char *rule_path, struct flow_classifier *cls_app)
 652 {
 653         FILE *fh;
 654         char buff[LINE_MAX];
 655         unsigned int i = 0;
 656         unsigned int total_num = 0;
 657         struct rte_eth_ntuple_filter ntuple_filter;
 658         int ret;
 659
 660         fh = fopen(rule_path, "rb");
 661         if (fh == NULL)
 662                 rte_exit(EXIT_FAILURE, "%s: fopen %s failed\n", __func__,
 663                         rule_path);
 664
 665         ret = fseek(fh, 0, SEEK_SET);
 666         if (ret)
 667                 rte_exit(EXIT_FAILURE, "%s: fseek %d failed\n", __func__,
 668                         ret);
 669
 670         i = 0;
 671         while (fgets(buff, LINE_MAX, fh) != NULL) {
 672                 i++;
 673
 674                 if (is_bypass_line(buff))
 675                         continue;
 676
 677                 if (total_num >= FLOW_CLASSIFY_MAX_RULE_NUM - 1) {
 678                         printf("\nINFO: classify rule capacity %d reached\n",
 679                                 total_num);
 680                         break;
 681                 }
 682
 683                 if (parse_ipv4_5tuple_rule(buff, &ntuple_filter) != 0)
 684                         rte_exit(EXIT_FAILURE,
 685                                 "%s Line %u: parse rules error\n",
 686                                 rule_path, i);
 687
 688                 if (add_classify_rule(&ntuple_filter, cls_app) != 0)
 689                         rte_exit(EXIT_FAILURE, "add rule error\n");
 690
 691                 total_num++;
 692         }
 693
 694         fclose(fh);
 695         return 0;
 696 }
 697
 698 /* display usage */
 699 static void
 700 print_usage(const char *prgname)
 701 {
 702         printf("%s usage:\n", prgname);
 703         printf("[EAL options] --  --"OPTION_RULE_IPV4"=FILE: ");
 704         printf("specify the ipv4 rules file.\n");
 705         printf("Each rule occupies one line in the file.\n");
 706 }
 707
 708 /* Parse the argument given in the command line of the application */
 709 static int
 710 parse_args(int argc, char **argv)
 711 {
 712         int opt, ret;
 713         char **argvopt;
 714         int option_index;
 715         char *prgname = argv[0];
 716         static struct option lgopts[] = {
 717                 {OPTION_RULE_IPV4, 1, 0, 0},
 718                 {NULL, 0, 0, 0}
 719         };
 720
 721         argvopt = argv;
 722
 723         while ((opt = getopt_long(argc, argvopt, "",
 724                                 lgopts, &option_index)) != EOF) {
 725
 726                 switch (opt) {
 727                 /* long options */
 728                 case 0:
 729                         if (!strncmp(lgopts[option_index].name,
 730                                         OPTION_RULE_IPV4,
 731                                         sizeof(OPTION_RULE_IPV4)))
 732                                 parm_config.rule_ipv4_name = optarg;
 733                         break;
 734                 default:
 735                         print_usage(prgname);
 736                         return -1;
 737                 }
 738         }
 739
 740         if (optind >= 0)
 741                 argv[optind-1] = prgname;
 742
 743         ret = optind-1;
 744         optind = 1; /* reset getopt lib */
 745         return ret;
 746 }
 747
 748 /*
 749  * The main function, which does initialization and calls the lcore_main
 750  * function.
 751  */
 752 int
 753 main(int argc, char *argv[])
 754 {
 755         struct rte_mempool *mbuf_pool;
 756         uint8_t nb_ports;
 757         uint8_t portid;
 758         int ret;
 759         int socket_id;
 760         struct rte_table_acl_params table_acl_params;
 761         struct rte_flow_classify_table_params cls_table_params;
 762         struct flow_classifier *cls_app;
 763         struct rte_flow_classifier_params cls_params;
 764         uint32_t size;
 765
 766         /* Initialize the Environment Abstraction Layer (EAL). */
 767         ret = rte_eal_init(argc, argv);
 768         if (ret < 0)
 769                 rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
 770
 771         argc -= ret;
 772         argv += ret;
 773
 774         /* parse application arguments (after the EAL ones) */
 775         ret = parse_args(argc, argv);
 776         if (ret < 0)
 777                 rte_exit(EXIT_FAILURE, "Invalid flow_classify parameters\n");
 778
 779         /* Check that there is an even number of ports to send/receive on. */
 780         nb_ports = rte_eth_dev_count();
 781         if (nb_ports < 2 || (nb_ports & 1))
 782                 rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n");
 783
 784         /* Creates a new mempool in memory to hold the mbufs. */
 785         mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports,
 786                 MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 787
 788         if (mbuf_pool == NULL)
 789                 rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
 790
 791         /* Initialize all ports. */
 792         for (portid = 0; portid < nb_ports; portid++)
 793                 if (port_init(portid, mbuf_pool) != 0)
 794                         rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n",
 795                                         portid);
 796
 797         if (rte_lcore_count() > 1)
 798                 printf("\nWARNING: Too many lcores enabled. Only 1 used.\n");
 799
 800         socket_id = rte_eth_dev_socket_id(0);
 801
 802         /* Memory allocation */
 803         size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct flow_classifier_acl));
 804         cls_app = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
 805         if (cls_app == NULL)
 806                 rte_exit(EXIT_FAILURE, "Cannot allocate classifier memory\n");
 807
 808         cls_params.name = "flow_classifier";
 809         cls_params.socket_id = socket_id;
 810
 811         cls_app->cls = rte_flow_classifier_create(&cls_params);
 812         if (cls_app->cls == NULL) {
 813                 rte_free(cls_app);
 814                 rte_exit(EXIT_FAILURE, "Cannot create classifier\n");
 815         }
 816
 817         /* initialise ACL table params */
 818         table_acl_params.name = "table_acl_ipv4_5tuple";
 819         table_acl_params.n_rules = FLOW_CLASSIFY_MAX_RULE_NUM;
 820         table_acl_params.n_rule_fields = RTE_DIM(ipv4_defs);
 821         memcpy(table_acl_params.field_format, ipv4_defs, sizeof(ipv4_defs));
 822
 823         /* initialise table create params */
 824         cls_table_params.ops = &rte_table_acl_ops;
 825         cls_table_params.arg_create = &table_acl_params;
 826         cls_table_params.type = RTE_FLOW_CLASSIFY_TABLE_ACL_IP4_5TUPLE;
 827
 828         ret = rte_flow_classify_table_create(cls_app->cls, &cls_table_params);
 829         if (ret) {
 830                 rte_flow_classifier_free(cls_app->cls);
 831                 rte_free(cls_app);
 832                 rte_exit(EXIT_FAILURE, "Failed to create classifier table\n");
 833         }
 834
 835         /* read file of IPv4 5 tuple rules and initialize parameters
 836          * for rte_flow_classify_validate and rte_flow_classify_table_entry_add
 837          * API's.
 838          */
 839         if (add_rules(parm_config.rule_ipv4_name, cls_app)) {
 840                 rte_flow_classifier_free(cls_app->cls);
 841                 rte_free(cls_app);
 842                 rte_exit(EXIT_FAILURE, "Failed to add rules\n");
 843         }
 844
 845         /* Call lcore_main on the master core only. */
 846         lcore_main(cls_app);
 847
 848         return 0;
 849 }