arch/linux/ipx_kali.c

   1 /* IPX driver for KaliNix interface */
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <netinet/in.h> /* for htons & co. */
   5 #include "ipx_drv.h"
   6 #include "ukali.h"
   7
   8 extern unsigned char ipx_MyAddress[10];
   9
  10 static int open_sockets = 0;
  11 static int dynamic_socket = 0x401;
  12 static int last_socket = 0;
  13
  14 int have_empty_address() {
  15         int i;
  16         for (i = 0; i < 10 && !ipx_MyAddress[i]; i++) ;
  17         return i == 10;
  18 }
  19
  20 int ipx_kali_GetMyAddress(void) {
  21
  22         kaliaddr_ipx mKaliAddr;
  23
  24         if (!have_empty_address())
  25                 return 0;
  26
  27         if (KaliGetNodeNum(&mKaliAddr) < 0)
  28                 return -1;
  29
  30         memset(ipx_MyAddress, 0, 4);
  31         memcpy(ipx_MyAddress + 4, mKaliAddr.sa_nodenum, sizeof(mKaliAddr.sa_nodenum));
  32
  33         return 0;
  34 }
  35
  36 int ipx_kali_OpenSocket(ipx_socket_t *sk, int port) {
  37         printf("IPX_kali: OpenSocket on port(%d)\n", port);
  38
  39         if (!open_sockets) {
  40                 if (have_empty_address()) {
  41                         if (ipx_kali_GetMyAddress() < 0) {
  42                                 printf("IPX_kali: Error communicating with KaliNix\n");
  43                                 return -1;
  44                         }
  45                 }
  46         }
  47         if (!port)
  48                 port = dynamic_socket++;
  49
  50         if ((sk->fd = KaliOpenSocket(htons(port))) < 0) {
  51                 printf("IPX_kali: OpenSocket Failed on port(%d)\n", port);
  52                 sk->fd = -1;
  53                 return -1;
  54         }
  55         open_sockets++;
  56         last_socket = port;
  57         sk->socket = port;
  58         return 0;
  59 }
  60
  61 void ipx_kali_CloseSocket(ipx_socket_t *mysock) {
  62         if (!open_sockets) {
  63                 printf("IPX_kali: close w/o open\n");
  64                 return;
  65         }
  66         printf("IPX_kali: CloseSocket on port(%d)\n", mysock->socket);
  67         KaliCloseSocket(mysock->fd);
  68         if (--open_sockets) {
  69                 printf("IPX_kali: (closesocket) %d sockets left\n", open_sockets);
  70                 return;
  71         }
  72 }
  73
  74 int ipx_kali_SendPacket(ipx_socket_t *mysock, IPXPacket_t *IPXHeader,
  75  u_char *data, int dataLen) {
  76         kaliaddr_ipx toaddr;
  77         int i;
  78
  79         memcpy(toaddr.sa_nodenum, IPXHeader->Destination.Node, sizeof(toaddr.sa_nodenum));
  80         memcpy(&toaddr.sa_socket, IPXHeader->Destination.Socket, sizeof(toaddr.sa_socket));
  81
  82         if ((i = KaliSendPacket(mysock->fd, (char *)data, dataLen, &toaddr)) < 0)
  83                 return -1;
  84
  85         return i;
  86 }
  87
  88 int ipx_kali_ReceivePacket(ipx_socket_t *s, char *outbuf, int outbufsize,
  89  struct ipx_recv_data *rd) {
  90         int size;
  91         kaliaddr_ipx fromaddr;
  92
  93         if ((size = KaliReceivePacket(s->fd, outbuf, outbufsize, &fromaddr)) < 0)
  94                 return -1;
  95
  96         rd->dst_socket = s->socket;
  97         rd->src_socket = ntohs(fromaddr.sa_socket);
  98         memcpy(rd->src_node, fromaddr.sa_nodenum, sizeof(fromaddr.sa_nodenum));
  99         memset(rd->src_network, 0, 4);
 100         rd->pkt_type = 0;
 101
 102         return size;
 103 }
 104
 105 struct ipx_driver ipx_kali = {
 106         ipx_kali_GetMyAddress,
 107         ipx_kali_OpenSocket,
 108         ipx_kali_CloseSocket,
 109         ipx_kali_SendPacket,
 110         ipx_kali_ReceivePacket,
 111         ipx_general_PacketReady
 112 };