net/caif.c

   1 #include <sys/types.h>
   2 #include <sys/socket.h>
   3 #include <sys/un.h>
   4 #include <netinet/in.h>
   5 #include <stdlib.h>
   6 #include "config.h"
   7 #include "net.h"
   8 #include "random.h"
   9 #include "utils.h"      // ARRAY_SIZE
  10 #include "compat.h"
  11
  12 #define SOL_CAIF 278
  13
  14 #ifdef USE_CAIF
  15 #include <linux/caif/caif_socket.h>
  16
  17 void caif_gen_sockaddr(struct sockaddr **addr, socklen_t *addrlen)
  18 {
  19         struct sockaddr_caif *caif;
  20         unsigned int i;
  21
  22         caif = malloc(sizeof(struct sockaddr_caif));
  23         if (caif == NULL)
  24                 return;
  25
  26         caif->family = PF_CAIF;
  27         caif->u.at.type = rand();
  28         for (i = 0; i < 16; i++)
  29                 caif->u.util.service[i] = rand();
  30         caif->u.dgm.connection_id = rand();
  31         caif->u.dgm.nsapi = rand();
  32         caif->u.rfm.connection_id = rand();
  33         for (i = 0; i < 16; i++)
  34                 caif->u.rfm.volume[i] = rand();
  35         caif->u.dbg.type = rand();
  36         caif->u.dbg.service = rand();
  37         *addr = (struct sockaddr *) caif;
  38         *addrlen = sizeof(struct sockaddr_caif);
  39 }
  40
  41 void caif_rand_socket(struct socket_triplet *st)
  42 {
  43         st->protocol = rand() % _CAIFPROTO_MAX;
  44         if (rand_bool())
  45                 st->type = SOCK_SEQPACKET;
  46         else
  47                 st->type = SOCK_STREAM;
  48 }
  49
  50 static const unsigned int caif_opts[] = { CAIFSO_LINK_SELECT, CAIFSO_REQ_PARAM };
  51 #define NR_SOL_CAIF_OPTS ARRAY_SIZE(caif_opts)
  52
  53 void caif_setsockopt(struct sockopt *so)
  54 {
  55         unsigned char val;
  56
  57         so->level = SOL_CAIF;
  58
  59         val = rand() % NR_SOL_CAIF_OPTS;
  60         so->optname = caif_opts[val];
  61 }
  62 #else
  63 /* stub if we are built on something without RDS headers */
  64 void caif_setsockopt(struct sockopt *so)
  65 {
  66         so->level = SOL_CAIF;
  67 }
  68 #endif