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