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#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netax25/ax25.h>
#include "maps.h" // page_rand
#include "net.h"
#include "random.h"
#include "utils.h" // ARRAY_SIZE
#include "compat.h"
void ax25_gen_sockaddr(struct sockaddr **addr, socklen_t *addrlen)
{
struct sockaddr_ax25 *ax25;
ax25 = malloc(sizeof(struct sockaddr_ax25));
if (ax25 == NULL)
return;
ax25->sax25_family = PF_AX25;
memcpy(ax25->sax25_call.ax25_call, page_rand, 7);
ax25->sax25_ndigis = rand();
*addr = (struct sockaddr *) ax25;
*addrlen = sizeof(struct sockaddr_ax25);
}
#define NR_AX25_PROTOS 13
static int ax25_protocols[NR_AX25_PROTOS] = {
0x01, /* ROSE */
0x06, /* Compressed TCP/IP packet *//* Van Jacobsen (RFC 1144) */
0x07, /* Uncompressed TCP/IP packet *//* Van Jacobsen (RFC 1144) */
0x08, /* Segmentation fragment */
0xc3, /* TEXTNET datagram protocol */
0xc4, /* Link Quality Protocol */
0xca, /* Appletalk */
0xcb, /* Appletalk ARP */
0xcc, /* ARPA Internet Protocol */
0xcd, /* ARPA Address Resolution */
0xce, /* FlexNet */
0xcf, /* NET/ROM */
0xF0 /* No layer 3 protocol impl. */
};
void ax25_rand_socket(struct socket_triplet *st)
{
switch (rand() % 3) {
case 0: st->type = SOCK_DGRAM;
st->protocol = 0;
break;
case 1: st->type = SOCK_SEQPACKET;
st->protocol = ax25_protocols[rand() % NR_AX25_PROTOS];
break;
case 2: st->type = SOCK_RAW;
break;
default:break;
}
}
#define NR_SOL_AX25_OPTS ARRAY_SIZE(ax25_opts)
static const unsigned int ax25_opts[] = {
AX25_WINDOW, AX25_T1, AX25_N2, AX25_T3,
AX25_T2, AX25_BACKOFF, AX25_EXTSEQ, AX25_PIDINCL,
AX25_IDLE, AX25_PACLEN, AX25_IAMDIGI,
SO_BINDTODEVICE };
void ax25_setsockopt(struct sockopt *so)
{
unsigned char val;
so->level = SOL_AX25;
val = rand() % NR_SOL_AX25_OPTS;
so->optname = ax25_opts[val];
}
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