contrib/tcpdump/print-sflow.c

   1 /*
   2  * Copyright (c) 1998-2007 The TCPDUMP project
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that: (1) source code
   6  * distributions retain the above copyright notice and this paragraph
   7  * in its entirety, and (2) distributions including binary code include
   8  * the above copyright notice and this paragraph in its entirety in
   9  * the documentation or other materials provided with the distribution.
  10  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
  11  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  12  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  13  * FOR A PARTICULAR PURPOSE.
  14  *
  15  * The SFLOW protocol as per http://www.sflow.org/developers/specifications.php
  16  *
  17  * Original code by Carles Kishimoto <carles.kishimoto@gmail.com>
  18  *
  19  * Expansion and refactoring by Rick Jones <rick.jones2@hp.com>
  20  */
  21
  22 #ifndef lint
  23 static const char rcsid[] _U_ =
  24 "@(#) $Header: /tcpdump/master/tcpdump/print-sflow.c,v 1.1 2007-08-08 17:20:58 hannes Exp $";
  25 #endif
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include <tcpdump-stdinc.h>
  32
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 #include "interface.h"
  38 #include "extract.h"
  39 #include "addrtoname.h"
  40
  41 /*
  42  * sFlow datagram
  43  *
  44  * 0                   1                   2                   3
  45  * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  46  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  47  * |                     Sflow version (2,4,5)                     |
  48  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  49  * |               IP version (1 for IPv4 | 2 for IPv6)            |
  50  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  51  * |                     IP Address AGENT (4 or 16 bytes)          |
  52  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  53  * |                          Sub agent ID                         |
  54  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  55  * |                      Datagram sequence number                 |
  56  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  57  * |                      Switch uptime in ms                      |
  58  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  59  * |                    num samples in datagram                    |
  60  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  61  *
  62  */
  63
  64 struct sflow_datagram_t {
  65     u_int8_t    version[4];
  66     u_int8_t    ip_version[4];
  67     u_int8_t    agent[4];
  68     u_int8_t    agent_id[4];
  69     u_int8_t    seqnum[4];
  70     u_int8_t    uptime[4];
  71     u_int8_t    samples[4];
  72 };
  73
  74 struct sflow_sample_header {
  75     u_int8_t    format[4];
  76     u_int8_t    len[4];
  77 };
  78
  79 #define         SFLOW_FLOW_SAMPLE               1
  80 #define         SFLOW_COUNTER_SAMPLE            2
  81 #define         SFLOW_EXPANDED_FLOW_SAMPLE      3
  82 #define         SFLOW_EXPANDED_COUNTER_SAMPLE   4
  83
  84 static const struct tok sflow_format_values[] = {
  85     { SFLOW_FLOW_SAMPLE, "flow sample" },
  86     { SFLOW_COUNTER_SAMPLE, "counter sample" },
  87     { SFLOW_EXPANDED_FLOW_SAMPLE, "expanded flow sample" },
  88     { SFLOW_EXPANDED_COUNTER_SAMPLE, "expanded counter sample" },
  89     { 0, NULL}
  90 };
  91
  92 struct sflow_flow_sample_t {
  93     u_int8_t    seqnum[4];
  94     u_int8_t    typesource[4];
  95     u_int8_t    rate[4];
  96     u_int8_t    pool[4];
  97     u_int8_t    drops[4];
  98     u_int8_t    in_interface[4];
  99     u_int8_t    out_interface[4];
 100     u_int8_t    records[4];
 101
 102 };
 103
 104 struct sflow_expanded_flow_sample_t {
 105     u_int8_t    seqnum[4];
 106     u_int8_t    type[4];
 107     u_int8_t    index[4];
 108     u_int8_t    rate[4];
 109     u_int8_t    pool[4];
 110     u_int8_t    drops[4];
 111     u_int8_t    in_interface_format[4];
 112     u_int8_t    in_interface_value[4];
 113     u_int8_t    out_interface_format[4];
 114     u_int8_t    out_interface_value[4];
 115     u_int8_t    records[4];
 116 };
 117
 118 #define         SFLOW_FLOW_RAW_PACKET                   1
 119 #define         SFLOW_FLOW_ETHERNET_FRAME               2
 120 #define         SFLOW_FLOW_IPV4_DATA                    3
 121 #define         SFLOW_FLOW_IPV6_DATA                    4
 122 #define         SFLOW_FLOW_EXTENDED_SWITCH_DATA         1001
 123 #define         SFLOW_FLOW_EXTENDED_ROUTER_DATA         1002
 124 #define         SFLOW_FLOW_EXTENDED_GATEWAY_DATA        1003
 125 #define         SFLOW_FLOW_EXTENDED_USER_DATA           1004
 126 #define         SFLOW_FLOW_EXTENDED_URL_DATA            1005
 127 #define         SFLOW_FLOW_EXTENDED_MPLS_DATA           1006
 128 #define         SFLOW_FLOW_EXTENDED_NAT_DATA            1007
 129 #define         SFLOW_FLOW_EXTENDED_MPLS_TUNNEL         1008
 130 #define         SFLOW_FLOW_EXTENDED_MPLS_VC             1009
 131 #define         SFLOW_FLOW_EXTENDED_MPLS_FEC            1010
 132 #define         SFLOW_FLOW_EXTENDED_MPLS_LVP_FEC        1011
 133 #define         SFLOW_FLOW_EXTENDED_VLAN_TUNNEL         1012
 134
 135 static const struct tok sflow_flow_type_values[] = {
 136     { SFLOW_FLOW_RAW_PACKET, "Raw packet"},
 137     { SFLOW_FLOW_ETHERNET_FRAME, "Ethernet frame"},
 138     { SFLOW_FLOW_IPV4_DATA, "IPv4 Data"},
 139     { SFLOW_FLOW_IPV6_DATA, "IPv6 Data"},
 140     { SFLOW_FLOW_EXTENDED_SWITCH_DATA, "Extended Switch data"},
 141     { SFLOW_FLOW_EXTENDED_ROUTER_DATA, "Extended Router data"},
 142     { SFLOW_FLOW_EXTENDED_GATEWAY_DATA, "Extended Gateway data"},
 143     { SFLOW_FLOW_EXTENDED_USER_DATA, "Extended User data"},
 144     { SFLOW_FLOW_EXTENDED_URL_DATA, "Extended URL data"},
 145     { SFLOW_FLOW_EXTENDED_MPLS_DATA, "Extended MPLS data"},
 146     { SFLOW_FLOW_EXTENDED_NAT_DATA, "Extended NAT data"},
 147     { SFLOW_FLOW_EXTENDED_MPLS_TUNNEL, "Extended MPLS tunnel"},
 148     { SFLOW_FLOW_EXTENDED_MPLS_VC, "Extended MPLS VC"},
 149     { SFLOW_FLOW_EXTENDED_MPLS_FEC, "Extended MPLS FEC"},
 150     { SFLOW_FLOW_EXTENDED_MPLS_LVP_FEC, "Extended MPLS LVP FEC"},
 151     { SFLOW_FLOW_EXTENDED_VLAN_TUNNEL, "Extended VLAN Tunnel"},
 152     { 0, NULL}
 153 };
 154
 155 #define         SFLOW_HEADER_PROTOCOL_ETHERNET  1
 156 #define         SFLOW_HEADER_PROTOCOL_IPV4      11
 157 #define         SFLOW_HEADER_PROTOCOL_IPV6      12
 158
 159 static const struct tok sflow_flow_raw_protocol_values[] = {
 160     { SFLOW_HEADER_PROTOCOL_ETHERNET, "Ethernet"},
 161     { SFLOW_HEADER_PROTOCOL_IPV4, "IPv4"},
 162     { SFLOW_HEADER_PROTOCOL_IPV6, "IPv6"},
 163     { 0, NULL}
 164 };
 165
 166 struct sflow_expanded_flow_raw_t {
 167     u_int8_t    protocol[4];
 168     u_int8_t    length[4];
 169     u_int8_t    stripped_bytes[4];
 170     u_int8_t    header_size[4];
 171 };
 172
 173 struct sflow_ethernet_frame_t {
 174     u_int8_t length[4];
 175     u_int8_t src_mac[8];
 176     u_int8_t dst_mac[8];
 177     u_int8_t type[4];
 178 };
 179
 180 struct sflow_extended_switch_data_t {
 181     u_int8_t src_vlan[4];
 182     u_int8_t src_pri[4];
 183     u_int8_t dst_vlan[4];
 184     u_int8_t dst_pri[4];
 185 };
 186
 187 struct sflow_counter_record_t {
 188     u_int8_t    format[4];
 189     u_int8_t    length[4];
 190 };
 191
 192 struct sflow_flow_record_t {
 193     u_int8_t    format[4];
 194     u_int8_t    length[4];
 195 };
 196
 197 struct sflow_counter_sample_t {
 198     u_int8_t    seqnum[4];
 199     u_int8_t    typesource[4];
 200     u_int8_t    records[4];
 201 };
 202
 203 struct sflow_expanded_counter_sample_t {
 204     u_int8_t    seqnum[4];
 205     u_int8_t    type[4];
 206     u_int8_t    index[4];
 207     u_int8_t    records[4];
 208 };
 209
 210 #define         SFLOW_COUNTER_GENERIC           1
 211 #define         SFLOW_COUNTER_ETHERNET          2
 212 #define         SFLOW_COUNTER_TOKEN_RING        3
 213 #define         SFLOW_COUNTER_BASEVG            4
 214 #define         SFLOW_COUNTER_VLAN              5
 215 #define         SFLOW_COUNTER_PROCESSOR         1001
 216
 217 static const struct tok sflow_counter_type_values[] = {
 218     { SFLOW_COUNTER_GENERIC, "Generic counter"},
 219     { SFLOW_COUNTER_ETHERNET, "Ethernet counter"},
 220     { SFLOW_COUNTER_TOKEN_RING, "Token ring counter"},
 221     { SFLOW_COUNTER_BASEVG, "100 BaseVG counter"},
 222     { SFLOW_COUNTER_VLAN, "Vlan counter"},
 223     { SFLOW_COUNTER_PROCESSOR, "Processor counter"},
 224     { 0, NULL}
 225 };
 226
 227 #define         SFLOW_IFACE_DIRECTION_UNKNOWN           0
 228 #define         SFLOW_IFACE_DIRECTION_FULLDUPLEX        1
 229 #define         SFLOW_IFACE_DIRECTION_HALFDUPLEX        2
 230 #define         SFLOW_IFACE_DIRECTION_IN                3
 231 #define         SFLOW_IFACE_DIRECTION_OUT               4
 232
 233 static const struct tok sflow_iface_direction_values[] = {
 234     { SFLOW_IFACE_DIRECTION_UNKNOWN, "unknown"},
 235     { SFLOW_IFACE_DIRECTION_FULLDUPLEX, "full-duplex"},
 236     { SFLOW_IFACE_DIRECTION_HALFDUPLEX, "half-duplex"},
 237     { SFLOW_IFACE_DIRECTION_IN, "in"},
 238     { SFLOW_IFACE_DIRECTION_OUT, "out"},
 239     { 0, NULL}
 240 };
 241
 242 struct sflow_generic_counter_t {
 243     u_int8_t    ifindex[4];
 244     u_int8_t    iftype[4];
 245     u_int8_t    ifspeed[8];
 246     u_int8_t    ifdirection[4];
 247     u_int8_t    ifstatus[4];
 248     u_int8_t    ifinoctets[8];
 249     u_int8_t    ifinunicastpkts[4];
 250     u_int8_t    ifinmulticastpkts[4];
 251     u_int8_t    ifinbroadcastpkts[4];
 252     u_int8_t    ifindiscards[4];
 253     u_int8_t    ifinerrors[4];
 254     u_int8_t    ifinunkownprotos[4];
 255     u_int8_t    ifoutoctets[8];
 256     u_int8_t    ifoutunicastpkts[4];
 257     u_int8_t    ifoutmulticastpkts[4];
 258     u_int8_t    ifoutbroadcastpkts[4];
 259     u_int8_t    ifoutdiscards[4];
 260     u_int8_t    ifouterrors[4];
 261     u_int8_t    ifpromiscmode[4];
 262 };
 263
 264 struct sflow_ethernet_counter_t {
 265     u_int8_t    alignerrors[4];
 266     u_int8_t    fcserrors[4];
 267     u_int8_t    single_collision_frames[4];
 268     u_int8_t    multiple_collision_frames[4];
 269     u_int8_t    test_errors[4];
 270     u_int8_t    deferred_transmissions[4];
 271     u_int8_t    late_collisions[4];
 272     u_int8_t    excessive_collisions[4];
 273     u_int8_t    mac_transmit_errors[4];
 274     u_int8_t    carrier_sense_errors[4];
 275     u_int8_t    frame_too_longs[4];
 276     u_int8_t    mac_receive_errors[4];
 277     u_int8_t    symbol_errors[4];
 278 };
 279
 280 struct sflow_100basevg_counter_t {
 281     u_int8_t    in_highpriority_frames[4];
 282     u_int8_t    in_highpriority_octets[8];
 283     u_int8_t    in_normpriority_frames[4];
 284     u_int8_t    in_normpriority_octets[8];
 285     u_int8_t    in_ipmerrors[4];
 286     u_int8_t    in_oversized[4];
 287     u_int8_t    in_data_errors[4];
 288     u_int8_t    in_null_addressed_frames[4];
 289     u_int8_t    out_highpriority_frames[4];
 290     u_int8_t    out_highpriority_octets[8];
 291     u_int8_t    transitioninto_frames[4];
 292     u_int8_t    hc_in_highpriority_octets[8];
 293     u_int8_t    hc_in_normpriority_octets[8];
 294     u_int8_t    hc_out_highpriority_octets[8];
 295 };
 296
 297 struct sflow_vlan_counter_t {
 298     u_int8_t    vlan_id[4];
 299     u_int8_t    octets[8];
 300     u_int8_t    unicast_pkt[4];
 301     u_int8_t    multicast_pkt[4];
 302     u_int8_t    broadcast_pkt[4];
 303     u_int8_t    discards[4];
 304 };
 305
 306 static int
 307 print_sflow_counter_generic(const u_char *pointer, u_int len) {
 308
 309     const struct sflow_generic_counter_t *sflow_gen_counter;
 310
 311     if (len < sizeof(struct sflow_generic_counter_t))
 312         return 1;
 313
 314
 315     sflow_gen_counter = (const struct sflow_generic_counter_t *)pointer;
 316     printf("\n\t      ifindex %u, iftype %u, ifspeed %" PRIu64 ", ifdirection %u (%s)",
 317            EXTRACT_32BITS(sflow_gen_counter->ifindex),
 318            EXTRACT_32BITS(sflow_gen_counter->iftype),
 319            EXTRACT_64BITS(sflow_gen_counter->ifspeed),
 320            EXTRACT_32BITS(sflow_gen_counter->ifdirection),
 321            tok2str(sflow_iface_direction_values, "Unknown",
 322                    EXTRACT_32BITS(sflow_gen_counter->ifdirection)));
 323     printf("\n\t      ifstatus %u, adminstatus: %s, operstatus: %s",
 324            EXTRACT_32BITS(sflow_gen_counter->ifstatus),
 325            EXTRACT_32BITS(sflow_gen_counter->ifstatus)&1 ? "up" : "down",
 326            (EXTRACT_32BITS(sflow_gen_counter->ifstatus)>>1)&1 ? "up" : "down");
 327     printf("\n\t      In octets %" PRIu64
 328            ", unicast pkts %u, multicast pkts %u, broadcast pkts %u, discards %u",
 329            EXTRACT_64BITS(sflow_gen_counter->ifinoctets),
 330            EXTRACT_32BITS(sflow_gen_counter->ifinunicastpkts),
 331            EXTRACT_32BITS(sflow_gen_counter->ifinmulticastpkts),
 332            EXTRACT_32BITS(sflow_gen_counter->ifinbroadcastpkts),
 333            EXTRACT_32BITS(sflow_gen_counter->ifindiscards));
 334     printf("\n\t      In errors %u, unknown protos %u",
 335            EXTRACT_32BITS(sflow_gen_counter->ifinerrors),
 336            EXTRACT_32BITS(sflow_gen_counter->ifinunkownprotos));
 337     printf("\n\t      Out octets %" PRIu64
 338            ", unicast pkts %u, multicast pkts %u, broadcast pkts %u, discards %u",
 339            EXTRACT_64BITS(sflow_gen_counter->ifoutoctets),
 340            EXTRACT_32BITS(sflow_gen_counter->ifoutunicastpkts),
 341            EXTRACT_32BITS(sflow_gen_counter->ifoutmulticastpkts),
 342            EXTRACT_32BITS(sflow_gen_counter->ifoutbroadcastpkts),
 343            EXTRACT_32BITS(sflow_gen_counter->ifoutdiscards));
 344     printf("\n\t      Out errors %u, promisc mode %u",
 345            EXTRACT_32BITS(sflow_gen_counter->ifouterrors),
 346            EXTRACT_32BITS(sflow_gen_counter->ifpromiscmode));
 347
 348     return 0;
 349 }
 350
 351 static int
 352 print_sflow_counter_ethernet(const u_char *pointer, u_int len){
 353
 354     const struct sflow_ethernet_counter_t *sflow_eth_counter;
 355
 356     if (len < sizeof(struct sflow_ethernet_counter_t))
 357         return 1;
 358
 359     sflow_eth_counter = (const struct sflow_ethernet_counter_t *)pointer;
 360     printf("\n\t      align errors %u, fcs errors %u, single collision %u, multiple collision %u, test error %u",
 361            EXTRACT_32BITS(sflow_eth_counter->alignerrors),
 362            EXTRACT_32BITS(sflow_eth_counter->fcserrors),
 363            EXTRACT_32BITS(sflow_eth_counter->single_collision_frames),
 364            EXTRACT_32BITS(sflow_eth_counter->multiple_collision_frames),
 365            EXTRACT_32BITS(sflow_eth_counter->test_errors));
 366     printf("\n\t      deferred %u, late collision %u, excessive collision %u, mac trans error %u",
 367            EXTRACT_32BITS(sflow_eth_counter->deferred_transmissions),
 368            EXTRACT_32BITS(sflow_eth_counter->late_collisions),
 369            EXTRACT_32BITS(sflow_eth_counter->excessive_collisions),
 370            EXTRACT_32BITS(sflow_eth_counter->mac_transmit_errors));
 371     printf("\n\t      carrier error %u, frames too long %u, mac receive errors %u, symbol errors %u",
 372            EXTRACT_32BITS(sflow_eth_counter->carrier_sense_errors),
 373            EXTRACT_32BITS(sflow_eth_counter->frame_too_longs),
 374            EXTRACT_32BITS(sflow_eth_counter->mac_receive_errors),
 375            EXTRACT_32BITS(sflow_eth_counter->symbol_errors));
 376
 377     return 0;
 378 }
 379
 380 static int
 381 print_sflow_counter_token_ring(const u_char *pointer _U_, u_int len _U_) {
 382
 383     return 0;
 384 }
 385
 386 static int
 387 print_sflow_counter_basevg(const u_char *pointer, u_int len) {
 388
 389     const struct sflow_100basevg_counter_t *sflow_100basevg_counter;
 390
 391     if (len < sizeof(struct sflow_100basevg_counter_t))
 392         return 1;
 393
 394     sflow_100basevg_counter = (const struct sflow_100basevg_counter_t *)pointer;
 395     printf("\n\t      in high prio frames %u, in high prio octets %" PRIu64,
 396            EXTRACT_32BITS(sflow_100basevg_counter->in_highpriority_frames),
 397            EXTRACT_64BITS(sflow_100basevg_counter->in_highpriority_octets));
 398     printf("\n\t      in norm prio frames %u, in norm prio octets %" PRIu64,
 399            EXTRACT_32BITS(sflow_100basevg_counter->in_normpriority_frames),
 400            EXTRACT_64BITS(sflow_100basevg_counter->in_normpriority_octets));
 401     printf("\n\t      in ipm errors %u, oversized %u, in data errors %u, null addressed frames %u",
 402            EXTRACT_32BITS(sflow_100basevg_counter->in_ipmerrors),
 403            EXTRACT_32BITS(sflow_100basevg_counter->in_oversized),
 404            EXTRACT_32BITS(sflow_100basevg_counter->in_data_errors),
 405            EXTRACT_32BITS(sflow_100basevg_counter->in_null_addressed_frames));
 406     printf("\n\t      out high prio frames %u, out high prio octets %" PRIu64
 407            ", trans into frames %u",
 408            EXTRACT_32BITS(sflow_100basevg_counter->out_highpriority_frames),
 409            EXTRACT_64BITS(sflow_100basevg_counter->out_highpriority_octets),
 410            EXTRACT_32BITS(sflow_100basevg_counter->transitioninto_frames));
 411     printf("\n\t      in hc high prio octets %" PRIu64
 412            ", in hc norm prio octets %" PRIu64
 413            ", out hc high prio octets %" PRIu64,
 414            EXTRACT_64BITS(sflow_100basevg_counter->hc_in_highpriority_octets),
 415            EXTRACT_64BITS(sflow_100basevg_counter->hc_in_normpriority_octets),
 416            EXTRACT_64BITS(sflow_100basevg_counter->hc_out_highpriority_octets));
 417
 418     return 0;
 419 }
 420
 421 static int
 422 print_sflow_counter_vlan(const u_char *pointer, u_int len) {
 423
 424     const struct sflow_vlan_counter_t *sflow_vlan_counter;
 425
 426     if (len < sizeof(struct sflow_vlan_counter_t))
 427         return 1;
 428
 429     sflow_vlan_counter = (const struct sflow_vlan_counter_t *)pointer;
 430     printf("\n\t      vlan_id %u, octets %" PRIu64
 431            ", unicast_pkt %u, multicast_pkt %u, broadcast_pkt %u, discards %u",
 432            EXTRACT_32BITS(sflow_vlan_counter->vlan_id),
 433            EXTRACT_64BITS(sflow_vlan_counter->octets),
 434            EXTRACT_32BITS(sflow_vlan_counter->unicast_pkt),
 435            EXTRACT_32BITS(sflow_vlan_counter->multicast_pkt),
 436            EXTRACT_32BITS(sflow_vlan_counter->broadcast_pkt),
 437            EXTRACT_32BITS(sflow_vlan_counter->discards));
 438
 439     return 0;
 440 }
 441
 442 struct sflow_processor_counter_t {
 443     u_int8_t five_sec_util[4];
 444     u_int8_t one_min_util[4];
 445     u_int8_t five_min_util[4];
 446     u_int8_t total_memory[8];
 447     u_int8_t free_memory[8];
 448 };
 449
 450 static int
 451 print_sflow_counter_processor(const u_char *pointer, u_int len) {
 452
 453     const struct sflow_processor_counter_t *sflow_processor_counter;
 454
 455     if (len < sizeof(struct sflow_processor_counter_t))
 456         return 1;
 457
 458     sflow_processor_counter = (const struct sflow_processor_counter_t *)pointer;
 459     printf("\n\t      5sec %u, 1min %u, 5min %u, total_mem %" PRIu64
 460            ", total_mem %" PRIu64,
 461            EXTRACT_32BITS(sflow_processor_counter->five_sec_util),
 462            EXTRACT_32BITS(sflow_processor_counter->one_min_util),
 463            EXTRACT_32BITS(sflow_processor_counter->five_min_util),
 464            EXTRACT_64BITS(sflow_processor_counter->total_memory),
 465            EXTRACT_64BITS(sflow_processor_counter->free_memory));
 466
 467     return 0;
 468 }
 469
 470 static int
 471 sflow_print_counter_records(const u_char *pointer, u_int len, u_int records) {
 472
 473     u_int nrecords;
 474     const u_char *tptr;
 475     u_int tlen;
 476     u_int counter_type;
 477     u_int counter_len;
 478     u_int enterprise;
 479     const struct sflow_counter_record_t *sflow_counter_record;
 480
 481     nrecords = records;
 482     tptr = pointer;
 483     tlen = len;
 484
 485     while (nrecords > 0) {
 486         /* do we have the "header?" */
 487         if (tlen < sizeof(struct sflow_counter_record_t))
 488             return 1;
 489         sflow_counter_record = (const struct sflow_counter_record_t *)tptr;
 490
 491         enterprise = EXTRACT_32BITS(sflow_counter_record->format);
 492         counter_type = enterprise & 0x0FFF;
 493         enterprise = enterprise >> 20;
 494         counter_len  = EXTRACT_32BITS(sflow_counter_record->length);
 495         printf("\n\t    enterprise %u, %s (%u) length %u",
 496                enterprise,
 497                (enterprise == 0) ? tok2str(sflow_counter_type_values,"Unknown",counter_type) : "Unknown",
 498                counter_type,
 499                counter_len);
 500
 501         tptr += sizeof(struct sflow_counter_record_t);
 502         tlen -= sizeof(struct sflow_counter_record_t);
 503
 504         if (tlen < counter_len)
 505             return 1;
 506         if (enterprise == 0) {
 507             switch (counter_type) {
 508             case SFLOW_COUNTER_GENERIC:
 509                 if (print_sflow_counter_generic(tptr,tlen))
 510                     return 1;
 511                 break;
 512             case SFLOW_COUNTER_ETHERNET:
 513                 if (print_sflow_counter_ethernet(tptr,tlen))
 514                     return 1;
 515                 break;
 516             case SFLOW_COUNTER_TOKEN_RING:
 517                 if (print_sflow_counter_token_ring(tptr,tlen))
 518                     return 1;
 519                 break;
 520             case SFLOW_COUNTER_BASEVG:
 521                 if (print_sflow_counter_basevg(tptr,tlen))
 522                     return 1;
 523                 break;
 524             case SFLOW_COUNTER_VLAN:
 525                 if (print_sflow_counter_vlan(tptr,tlen))
 526                     return 1;
 527                 break;
 528             case SFLOW_COUNTER_PROCESSOR:
 529                 if (print_sflow_counter_processor(tptr,tlen))
 530                     return 1;
 531                 break;
 532             default:
 533                 if (vflag <= 1)
 534                     print_unknown_data(tptr, "\n\t\t", counter_len);
 535                 break;
 536             }
 537         }
 538         tptr += counter_len;
 539         tlen -= counter_len;
 540         nrecords--;
 541
 542     }
 543
 544     return 0;
 545 }
 546
 547
 548 static int
 549 sflow_print_counter_sample(const u_char *pointer, u_int len) {
 550
 551     const struct sflow_counter_sample_t *sflow_counter_sample;
 552     u_int           nrecords;
 553     u_int           typesource;
 554     u_int           type;
 555     u_int           index;
 556
 557
 558     if (len < sizeof(struct sflow_counter_sample_t))
 559         return 1;
 560
 561     sflow_counter_sample = (const struct sflow_counter_sample_t *)pointer;
 562
 563     typesource = EXTRACT_32BITS(sflow_counter_sample->typesource);
 564     nrecords   = EXTRACT_32BITS(sflow_counter_sample->records);
 565     type = typesource >> 24;
 566     index = typesource & 0x0FFF;
 567
 568     printf(" seqnum %u, type %u, idx %u, records %u",
 569            EXTRACT_32BITS(sflow_counter_sample->seqnum),
 570            type,
 571            index,
 572            nrecords);
 573
 574     return sflow_print_counter_records(pointer + sizeof(struct sflow_counter_sample_t),
 575                                        len - sizeof(struct sflow_counter_sample_t),
 576                                        nrecords);
 577
 578 }
 579
 580 static int
 581 sflow_print_expanded_counter_sample(const u_char *pointer, u_int len) {
 582
 583     const struct sflow_expanded_counter_sample_t *sflow_expanded_counter_sample;
 584     u_int           nrecords;
 585
 586
 587     if (len < sizeof(struct sflow_expanded_counter_sample_t))
 588         return 1;
 589
 590     sflow_expanded_counter_sample = (const struct sflow_expanded_counter_sample_t *)pointer;
 591
 592     nrecords = EXTRACT_32BITS(sflow_expanded_counter_sample->records);
 593
 594     printf(" seqnum %u, type %u, idx %u, records %u",
 595            EXTRACT_32BITS(sflow_expanded_counter_sample->seqnum),
 596            EXTRACT_32BITS(sflow_expanded_counter_sample->type),
 597            EXTRACT_32BITS(sflow_expanded_counter_sample->index),
 598            nrecords);
 599
 600     return sflow_print_counter_records(pointer + sizeof(struct sflow_expanded_counter_sample_t),
 601                                        len - sizeof(struct sflow_expanded_counter_sample_t),
 602                                        nrecords);
 603
 604 }
 605
 606 static int
 607 print_sflow_raw_packet(const u_char *pointer, u_int len) {
 608
 609     const struct sflow_expanded_flow_raw_t *sflow_flow_raw;
 610
 611     if (len < sizeof(struct sflow_expanded_flow_raw_t))
 612         return 1;
 613
 614     sflow_flow_raw = (const struct sflow_expanded_flow_raw_t *)pointer;
 615     printf("\n\t      protocol %s (%u), length %u, stripped bytes %u, header_size %u",
 616            tok2str(sflow_flow_raw_protocol_values,"Unknown",EXTRACT_32BITS(sflow_flow_raw->protocol)),
 617            EXTRACT_32BITS(sflow_flow_raw->protocol),
 618            EXTRACT_32BITS(sflow_flow_raw->length),
 619            EXTRACT_32BITS(sflow_flow_raw->stripped_bytes),
 620            EXTRACT_32BITS(sflow_flow_raw->header_size));
 621
 622     /* QUESTION - should we attempt to print the raw header itself?
 623        assuming of course there is wnough data present to do so... */
 624
 625     return 0;
 626 }
 627
 628 static int
 629 print_sflow_ethernet_frame(const u_char *pointer, u_int len) {
 630
 631     const struct sflow_ethernet_frame_t *sflow_ethernet_frame;
 632
 633     if (len < sizeof(struct sflow_ethernet_frame_t))
 634         return 1;
 635
 636     sflow_ethernet_frame = (const struct sflow_ethernet_frame_t *)pointer;
 637
 638     printf("\n\t      frame len %u, type %u",
 639            EXTRACT_32BITS(sflow_ethernet_frame->length),
 640            EXTRACT_32BITS(sflow_ethernet_frame->type));
 641
 642     return 0;
 643 }
 644
 645 static int
 646 print_sflow_extended_switch_data(const u_char *pointer, u_int len) {
 647
 648     const struct sflow_extended_switch_data_t *sflow_extended_sw_data;
 649
 650     if (len < sizeof(struct sflow_extended_switch_data_t))
 651         return 1;
 652
 653     sflow_extended_sw_data = (const struct sflow_extended_switch_data_t *)pointer;
 654     printf("\n\t      src vlan %u, src pri %u, dst vlan %u, dst pri %u",
 655            EXTRACT_32BITS(sflow_extended_sw_data->src_vlan),
 656            EXTRACT_32BITS(sflow_extended_sw_data->src_pri),
 657            EXTRACT_32BITS(sflow_extended_sw_data->dst_vlan),
 658            EXTRACT_32BITS(sflow_extended_sw_data->dst_pri));
 659
 660     return 0;
 661 }
 662
 663 static int
 664 sflow_print_flow_records(const u_char *pointer, u_int len, u_int records) {
 665
 666     u_int nrecords;
 667     const u_char *tptr;
 668     u_int tlen;
 669     u_int flow_type;
 670     u_int enterprise;
 671     u_int flow_len;
 672     const struct sflow_flow_record_t *sflow_flow_record;
 673
 674     nrecords = records;
 675     tptr = pointer;
 676     tlen = len;
 677
 678     while (nrecords > 0) {
 679         /* do we have the "header?" */
 680         if (tlen < sizeof(struct sflow_flow_record_t))
 681             return 1;
 682
 683         sflow_flow_record = (const struct sflow_flow_record_t *)tptr;
 684
 685         /* so, the funky encoding means we cannot blythly mask-off
 686            bits, we must also check the enterprise. */
 687
 688         enterprise = EXTRACT_32BITS(sflow_flow_record->format);
 689         flow_type = enterprise & 0x0FFF;
 690         enterprise = enterprise >> 12;
 691         flow_len  = EXTRACT_32BITS(sflow_flow_record->length);
 692         printf("\n\t    enterprise %u %s (%u) length %u",
 693                enterprise,
 694                (enterprise == 0) ? tok2str(sflow_flow_type_values,"Unknown",flow_type) : "Unknown",
 695                flow_type,
 696                flow_len);
 697
 698         tptr += sizeof(struct sflow_flow_record_t);
 699         tlen -= sizeof(struct sflow_flow_record_t);
 700
 701         if (tlen < flow_len)
 702             return 1;
 703
 704         if (enterprise == 0) {
 705             switch (flow_type) {
 706             case SFLOW_FLOW_RAW_PACKET:
 707                 if (print_sflow_raw_packet(tptr,tlen))
 708                     return 1;
 709                 break;
 710             case SFLOW_FLOW_EXTENDED_SWITCH_DATA:
 711                 if (print_sflow_extended_switch_data(tptr,tlen))
 712                     return 1;
 713                 break;
 714             case SFLOW_FLOW_ETHERNET_FRAME:
 715                 if (print_sflow_ethernet_frame(tptr,tlen))
 716                     return 1;
 717                 break;
 718                 /* FIXME these need a decoder */
 719             case SFLOW_FLOW_IPV4_DATA:
 720             case SFLOW_FLOW_IPV6_DATA:
 721             case SFLOW_FLOW_EXTENDED_ROUTER_DATA:
 722             case SFLOW_FLOW_EXTENDED_GATEWAY_DATA:
 723             case SFLOW_FLOW_EXTENDED_USER_DATA:
 724             case SFLOW_FLOW_EXTENDED_URL_DATA:
 725             case SFLOW_FLOW_EXTENDED_MPLS_DATA:
 726             case SFLOW_FLOW_EXTENDED_NAT_DATA:
 727             case SFLOW_FLOW_EXTENDED_MPLS_TUNNEL:
 728             case SFLOW_FLOW_EXTENDED_MPLS_VC:
 729             case SFLOW_FLOW_EXTENDED_MPLS_FEC:
 730             case SFLOW_FLOW_EXTENDED_MPLS_LVP_FEC:
 731             case SFLOW_FLOW_EXTENDED_VLAN_TUNNEL:
 732                 break;
 733             default:
 734                 if (vflag <= 1)
 735                     print_unknown_data(tptr, "\n\t\t", flow_len);
 736                 break;
 737             }
 738         }
 739         tptr += flow_len;
 740         tlen -= flow_len;
 741         nrecords--;
 742
 743     }
 744
 745     return 0;
 746 }
 747
 748 static int
 749 sflow_print_flow_sample(const u_char *pointer, u_int len) {
 750
 751     const struct sflow_flow_sample_t *sflow_flow_sample;
 752     u_int          nrecords;
 753     u_int          typesource;
 754     u_int          type;
 755     u_int          index;
 756
 757     if (len < sizeof(struct sflow_flow_sample_t))
 758         return 1;
 759
 760     sflow_flow_sample = (struct sflow_flow_sample_t *)pointer;
 761
 762     typesource = EXTRACT_32BITS(sflow_flow_sample->typesource);
 763     nrecords = EXTRACT_32BITS(sflow_flow_sample->records);
 764     type = typesource >> 24;
 765     index = typesource & 0x0FFF;
 766
 767     printf(" seqnum %u, type %u, idx %u, rate %u, pool %u, drops %u, input %u output %u records %u",
 768            EXTRACT_32BITS(sflow_flow_sample->seqnum),
 769            type,
 770            index,
 771            EXTRACT_32BITS(sflow_flow_sample->rate),
 772            EXTRACT_32BITS(sflow_flow_sample->pool),
 773            EXTRACT_32BITS(sflow_flow_sample->drops),
 774            EXTRACT_32BITS(sflow_flow_sample->in_interface),
 775            EXTRACT_32BITS(sflow_flow_sample->out_interface),
 776            nrecords);
 777
 778     return sflow_print_flow_records(pointer + sizeof(struct sflow_flow_sample_t),
 779                                     len - sizeof(struct sflow_flow_sample_t),
 780                                     nrecords);
 781
 782 }
 783
 784 static int
 785 sflow_print_expanded_flow_sample(const u_char *pointer, u_int len) {
 786
 787     const struct sflow_expanded_flow_sample_t *sflow_expanded_flow_sample;
 788     u_int nrecords;
 789
 790     if (len < sizeof(struct sflow_expanded_flow_sample_t))
 791         return 1;
 792
 793     sflow_expanded_flow_sample = (const struct sflow_expanded_flow_sample_t *)pointer;
 794
 795     nrecords = EXTRACT_32BITS(sflow_expanded_flow_sample->records);
 796
 797     printf(" seqnum %u, type %u, idx %u, rate %u, pool %u, drops %u, records %u",
 798            EXTRACT_32BITS(sflow_expanded_flow_sample->seqnum),
 799            EXTRACT_32BITS(sflow_expanded_flow_sample->type),
 800            EXTRACT_32BITS(sflow_expanded_flow_sample->index),
 801            EXTRACT_32BITS(sflow_expanded_flow_sample->rate),
 802            EXTRACT_32BITS(sflow_expanded_flow_sample->pool),
 803            EXTRACT_32BITS(sflow_expanded_flow_sample->drops),
 804            EXTRACT_32BITS(sflow_expanded_flow_sample->records));
 805
 806     return sflow_print_flow_records(pointer + sizeof(struct sflow_expanded_flow_sample_t),
 807                                     len - sizeof(struct sflow_expanded_flow_sample_t),
 808                                     nrecords);
 809
 810 }
 811
 812 void
 813 sflow_print(const u_char *pptr, u_int len) {
 814
 815     const struct sflow_datagram_t *sflow_datagram;
 816     const struct sflow_sample_header *sflow_sample;
 817
 818     const u_char *tptr;
 819     u_int tlen;
 820     u_int32_t sflow_sample_type, sflow_sample_len;
 821     u_int32_t nsamples;
 822
 823
 824     tptr = pptr;
 825     tlen = len;
 826     sflow_datagram = (const struct sflow_datagram_t *)pptr;
 827     TCHECK(*sflow_datagram);
 828
 829     /*
 830      * Sanity checking of the header.
 831      */
 832     if (EXTRACT_32BITS(sflow_datagram->version) != 5) {
 833         printf("sFlow version %u packet not supported",
 834                EXTRACT_32BITS(sflow_datagram->version));
 835         return;
 836     }
 837
 838     if (vflag < 1) {
 839         printf("sFlowv%u, %s agent %s, agent-id %u, length %u",
 840                EXTRACT_32BITS(sflow_datagram->version),
 841                EXTRACT_32BITS(sflow_datagram->ip_version) == 1 ? "IPv4" : "IPv6",
 842                ipaddr_string(sflow_datagram->agent),
 843                EXTRACT_32BITS(sflow_datagram->samples),
 844                len);
 845         return;
 846     }
 847
 848     /* ok they seem to want to know everything - lets fully decode it */
 849     nsamples=EXTRACT_32BITS(sflow_datagram->samples);
 850     printf("sFlowv%u, %s agent %s, agent-id %u, seqnum %u, uptime %u, samples %u, length %u",
 851            EXTRACT_32BITS(sflow_datagram->version),
 852            EXTRACT_32BITS(sflow_datagram->ip_version) == 1 ? "IPv4" : "IPv6",
 853            ipaddr_string(sflow_datagram->agent),
 854            EXTRACT_32BITS(sflow_datagram->agent_id),
 855            EXTRACT_32BITS(sflow_datagram->seqnum),
 856            EXTRACT_32BITS(sflow_datagram->uptime),
 857            nsamples,
 858            len);
 859
 860     /* skip Common header */
 861     tptr += sizeof(const struct sflow_datagram_t);
 862     tlen -= sizeof(const struct sflow_datagram_t);
 863
 864     while (nsamples > 0 && tlen > 0) {
 865         sflow_sample = (const struct sflow_sample_header *)tptr;
 866         TCHECK(*sflow_sample);
 867
 868         sflow_sample_type = (EXTRACT_32BITS(sflow_sample->format)&0x0FFF);
 869         sflow_sample_len = EXTRACT_32BITS(sflow_sample->len);
 870
 871         if (tlen < sizeof(struct sflow_sample_header))
 872             goto trunc;
 873
 874         tptr += sizeof(struct sflow_sample_header);
 875         tlen -= sizeof(struct sflow_sample_header);
 876
 877         printf("\n\t%s (%u), length %u,",
 878                tok2str(sflow_format_values, "Unknown", sflow_sample_type),
 879                sflow_sample_type,
 880                sflow_sample_len);
 881
 882         /* basic sanity check */
 883         if (sflow_sample_type == 0 || sflow_sample_len ==0) {
 884             return;
 885         }
 886
 887         if (tlen < sflow_sample_len)
 888             goto trunc;
 889
 890         /* did we capture enough for fully decoding the sample ? */
 891         TCHECK2(*tptr, sflow_sample_len);
 892
 893         switch(sflow_sample_type) {
 894         case SFLOW_FLOW_SAMPLE:
 895             if (sflow_print_flow_sample(tptr,tlen))
 896                 goto trunc;
 897             break;
 898
 899         case SFLOW_COUNTER_SAMPLE:
 900             if (sflow_print_counter_sample(tptr,tlen))
 901                 goto trunc;
 902             break;
 903
 904         case SFLOW_EXPANDED_FLOW_SAMPLE:
 905             if (sflow_print_expanded_flow_sample(tptr,tlen))
 906                 goto trunc;
 907             break;
 908
 909         case SFLOW_EXPANDED_COUNTER_SAMPLE:
 910             if (sflow_print_expanded_counter_sample(tptr,tlen))
 911                 goto trunc;
 912             break;
 913
 914         default:
 915             if (vflag <= 1)
 916                 print_unknown_data(tptr, "\n\t    ", sflow_sample_len);
 917             break;
 918         }
 919         tptr += sflow_sample_len;
 920         tlen -= sflow_sample_len;
 921         nsamples--;
 922     }
 923     return;
 924
 925  trunc:
 926     printf("[|SFLOW]");
 927 }
 928
 929 /*
 930  * Local Variables:
 931  * c-style: whitesmith
 932  * c-basic-offset: 4
 933  * End:
 934  */