package/wprobe/src/exporter/wprobe-export.c

   1 /*
   2 **     exporter.c - example exporter
   3 **
   4 **     Copyright Fraunhofer FOKUS
   5 **
   6 */
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <string.h>
  11 #include <errno.h>
  12
  13 #include <ipfix_def.h>
  14 #include <ipfix_def_fokus.h>
  15 #include <ipfix_fields_fokus.h>
  16
  17 #include <ipfix.h>
  18 #include <mlog.h>
  19 #include <wprobe.h>
  20 #include <stdbool.h>
  21
  22 static ipfix_datarecord_t g_data  = { NULL, NULL, 0 };
  23 static int do_close = 0;
  24
  25 struct wprobe_mapping {
  26         int id;
  27         bool counter;
  28         float scale;
  29         const char *wprobe_id;
  30         struct wprobe_value *val;
  31 };
  32
  33 #ifndef ARRAY_SIZE
  34 #define ARRAY_SIZE(_array) (sizeof(_array) / sizeof((_array)[0]))
  35 #endif
  36
  37 #define WMAP(_id, _name, ...) \
  38         { \
  39                 .scale = 1.0f, \
  40                 .counter = false, \
  41                 .id = IPFIX_FT_WPROBE_##_id##_AVG, \
  42                 .wprobe_id = _name \
  43                 , ## __VA_ARGS__ \
  44         }
  45
  46 #define WMAP_COUNTER(_id, _name, ...) \
  47         { \
  48                 .scale = 1.0f, \
  49                 .counter = true, \
  50                 .id = IPFIX_FT_WPROBE_##_id, \
  51                 .wprobe_id = _name \
  52                 , ## __VA_ARGS__ \
  53         }
  54
  55
  56 #define WPROBE_OFFSET   2
  57
  58 static struct wprobe_mapping map_globals[] = {
  59         WMAP(NOISE, "noise"),
  60         WMAP(PHY_BUSY, "phy_busy"),
  61         WMAP(PHY_RX, "phy_rx"),
  62         WMAP(PHY_TX, "phy_tx"),
  63         WMAP_COUNTER(FRAMES, "frames"),
  64         WMAP_COUNTER(PROBEREQ, "probereq"),
  65 };
  66
  67 static struct wprobe_mapping map_perlink[] = {
  68         WMAP(IEEE_TX_RATE, "tx_rate"),
  69         WMAP(IEEE_RX_RATE, "rx_rate"),
  70         WMAP(RSSI, "rssi"),
  71         WMAP(SIGNAL, "signal"),
  72         WMAP(RETRANSMIT_200, "retransmit_200"),
  73         WMAP(RETRANSMIT_400, "retransmit_400"),
  74         WMAP(RETRANSMIT_800, "retransmit_800"),
  75         WMAP(RETRANSMIT_1600, "retransmit_1600"),
  76 };
  77
  78 static unsigned char link_local[6];
  79 static char link_default[6];
  80 static int nfields = 0;
  81
  82 #define FOKUS_USERID    12325
  83
  84 static void
  85 match_template(struct wprobe_mapping *map, int n, struct list_head *list)
  86 {
  87         struct wprobe_attribute *attr;
  88         int i, j, last = -1;
  89
  90         list_for_each_entry(attr, list, list) {
  91                 for (i = 0; i < n; i++) {
  92                         j = (last + 1 + i) % n;
  93                         if (!strcmp(attr->name, map[j].wprobe_id))
  94                                 goto found;
  95                 }
  96                 continue;
  97 found:
  98                 last = j;
  99                 map[j].val = &attr->val;
 100                 memset(&attr->val, 0, sizeof(attr->val));
 101                 nfields++;
 102         }
 103 }
 104
 105 /* name: export_ipfix_get_template()
 106  */
 107 static ipfix_template_t *
 108 prepare_template(ipfix_t *handle)
 109 {
 110     ipfix_template_t *t = NULL;
 111         int size = 3 * nfields + WPROBE_OFFSET;
 112     int i;
 113
 114     if (ipfix_new_data_template( handle, &t, size) < 0) {
 115         mlogf( 0, "ipfix_new_template() failed: %s\n", strerror(errno) );
 116                 exit(1);
 117     }
 118
 119         ipfix_add_field(handle, t, 0, IPFIX_FT_SOURCEMACADDRESS, 6);
 120         ipfix_add_field(handle, t, 0, IPFIX_FT_DESTINATIONMACADDRESS, 6);
 121
 122         g_data.lens = calloc(size, sizeof(g_data.lens[0]));
 123         g_data.lens[0] = 6;
 124         g_data.lens[1] = 6;
 125         for (i = WPROBE_OFFSET; i < size; i++)
 126                 g_data.lens[i] = 4;
 127
 128         g_data.addrs = calloc(size, sizeof(g_data.addrs[0]));
 129         g_data.addrs[0] = link_local;
 130         g_data.maxfields = WPROBE_OFFSET;
 131         return t;
 132 }
 133
 134 static void
 135 add_template_fields(ipfix_t *handle, ipfix_template_t *t, struct wprobe_mapping *map, int n)
 136 {
 137         int f = g_data.maxfields;
 138         int i;
 139
 140     for (i = 0; i < n; i++) {
 141                 if (!map[i].val)
 142                         continue;
 143
 144                 if (map[i].counter)
 145                         g_data.addrs[f++] = &map[i].val->U32;
 146                 else
 147                         g_data.addrs[f++] = &map[i].val->avg;
 148
 149         if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 0, 4) < 0)
 150             exit(1);
 151
 152                 if (map[i].counter)
 153                         continue;
 154
 155                 g_data.addrs[f++] = &map[i].val->stdev;
 156                 g_data.addrs[f++] = &map[i].val->n;
 157         if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 1, 4) < 0)
 158             exit(1);
 159         if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 2, 4) < 0)
 160             exit(1);
 161     }
 162         g_data.maxfields = f;
 163 }
 164
 165 static void
 166 wprobe_dump_data(ipfix_t *ipfixh, ipfix_template_t *ipfixt, struct wprobe_iface *dev)
 167 {
 168         struct wprobe_link *link;
 169
 170         wprobe_update_links(dev);
 171         wprobe_request_data(dev, NULL);
 172         if (list_empty(&dev->links)) {
 173                 g_data.addrs[1] = link_default;
 174                 ipfix_export_array(ipfixh, ipfixt, g_data.maxfields, g_data.addrs, g_data.lens);
 175                 ipfix_export_flush(ipfixh);
 176         }
 177         list_for_each_entry(link, &dev->links, list) {
 178                 g_data.addrs[1] = link->addr;
 179                 wprobe_request_data(dev, link->addr);
 180                 ipfix_export_array(ipfixh, ipfixt, g_data.maxfields, g_data.addrs, g_data.lens);
 181                 ipfix_export_flush(ipfixh);
 182         }
 183 }
 184
 185 int main ( int argc, char **argv )
 186 {
 187         struct wprobe_iface *dev = NULL;
 188     ipfix_template_t  *ipfixt = NULL;
 189     ipfix_t *ipfixh = NULL;
 190     int protocol = IPFIX_PROTO_TCP;
 191     char *chost = NULL;
 192         char *ifname = NULL;
 193     int sourceid = 12345;
 194     int port = IPFIX_PORTNO;
 195     int verbose_level = 0;
 196     int opt, i = 10;
 197         char *err = NULL;
 198
 199         while ((opt = getopt(argc, argv, "hi:c:p:vstu")) != EOF) {
 200                 switch (opt) {
 201                 case 'p':
 202                         if ((port=atoi(optarg)) <0) {
 203                                 fprintf( stderr, "Invalid -p argument!\n" );
 204                                 exit(1);
 205                         }
 206                         break;
 207                 case 'i':
 208                         ifname = optarg;
 209                         break;
 210                 case 'c':
 211                         chost = optarg;
 212                         break;
 213
 214                 case 's':
 215                         protocol = IPFIX_PROTO_SCTP;
 216                         break;
 217
 218                 case 't':
 219                         protocol = IPFIX_PROTO_TCP;
 220                         break;
 221
 222                 case 'u':
 223                         protocol = IPFIX_PROTO_UDP;
 224                         break;
 225
 226                 case 'v':
 227                         verbose_level ++;
 228                         break;
 229
 230                 case 'h':
 231                 default:
 232                         fprintf(stderr, "usage: %s [-hstuv] -i <interface> -c <collector> [-p portno]\n"
 233                                          "  -h               this help\n"
 234                                          "  -i <interface>   wprobe interface\n"
 235                                          "  -c <collector>   collector address\n"
 236                                          "  -p <portno>      collector port number (default=%d)\n"
 237                                          "  -s               send data via SCTP\n"
 238                                          "  -t               send data via TCP (default)\n"
 239                                          "  -u               send data via UDP\n"
 240                                          "  -v               increase verbose level\n\n",
 241                                          argv[0], IPFIX_PORTNO  );
 242                         exit(1);
 243                 }
 244         }
 245
 246         if (!ifname) {
 247                 fprintf(stderr, "No interface specified\n");
 248                 return -1;
 249         }
 250
 251         if (!chost) {
 252                 fprintf(stderr, "No collector specified\n");
 253                 return -1;
 254         }
 255
 256         dev = wprobe_get_auto(ifname, &err);
 257         if (!dev || (list_empty(&dev->global_attr) && list_empty(&dev->link_attr))) {
 258                 fprintf(stderr, "Cannot connect to wprobe on interface '%s': %s\n", ifname, (err ? err : "Unknown error"));
 259                 return -1;
 260         }
 261
 262         match_template(map_globals, ARRAY_SIZE(map_globals), &dev->global_attr);
 263         match_template(map_perlink, ARRAY_SIZE(map_perlink), &dev->link_attr);
 264         if (nfields == 0) {
 265                 fprintf(stderr, "No usable attributes found\n");
 266                 return -1;
 267         }
 268
 269     mlog_set_vlevel( verbose_level );
 270     if (ipfix_init() < 0) {
 271         fprintf( stderr, "cannot init ipfix module: %s\n", strerror(errno) );
 272         exit(1);
 273     }
 274
 275     ipfix_add_vendor_information_elements(ipfix_ft_fokus);
 276     if (ipfix_open(&ipfixh, sourceid, IPFIX_VERSION) < 0) {
 277         fprintf( stderr, "ipfix_open() failed: %s\n", strerror(errno) );
 278         exit(1);
 279     }
 280
 281     if (ipfix_add_collector( ipfixh, chost, port, protocol ) < 0) {
 282         fprintf( stderr, "ipfix_add_collector(%s,%d) failed: %s\n",
 283                  chost, port, strerror(errno));
 284         exit(1);
 285     }
 286
 287         fprintf(stderr, "Local link address: %02x:%02x:%02x:%02x:%02x:%02x\n",
 288                 link_local[0], link_local[1], link_local[2],
 289                 link_local[3], link_local[4], link_local[5]);
 290
 291         ipfixt = prepare_template(ipfixh);
 292         add_template_fields(ipfixh, ipfixt, map_globals, ARRAY_SIZE(map_globals));
 293         add_template_fields(ipfixh, ipfixt, map_perlink, ARRAY_SIZE(map_perlink));
 294
 295         while (!do_close) {
 296                 sleep(1);
 297                 wprobe_dump_data(ipfixh, ipfixt, dev);
 298     }
 299
 300     ipfix_delete_template( ipfixh, ipfixt );
 301     ipfix_close( ipfixh );
 302     ipfix_cleanup();
 303     exit(0);
 304 }