arch/linux/ipx_kali.c

   1 /* $Id: ipx_kali.c,v 1.7 2003-12-08 22:55:27 btb Exp $ */
   2 /*
   3  *
   4  * IPX driver for KaliNix interface
   5  *
   6  */
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include <conf.h>
  10 #endif
  11
  12 #include <stdio.h>
  13 #include <string.h>
  14 #include <arpa/inet.h>
  15 #include <netinet/in.h> /* for htons & co. */
  16 #include "ipx_drv.h"
  17 #include "ukali.h"
  18
  19 extern unsigned char ipx_MyAddress[10];
  20
  21 static int open_sockets = 0;
  22 static int dynamic_socket = 0x401;
  23 static int last_socket = 0;
  24
  25 int have_empty_address() {
  26         int i;
  27         for (i = 0; i < 10 && !ipx_MyAddress[i]; i++) ;
  28         return i == 10;
  29 }
  30
  31 int ipx_kali_GetMyAddress(void)
  32 {
  33
  34         kaliaddr_ipx mKaliAddr;
  35
  36         if (!have_empty_address())
  37                 return 0;
  38
  39         if (KaliGetNodeNum(&mKaliAddr) < 0)
  40                 return -1;
  41
  42         memset(ipx_MyAddress, 0, 4);
  43         memcpy(ipx_MyAddress + 4, mKaliAddr.sa_nodenum, sizeof(mKaliAddr.sa_nodenum));
  44
  45         return 0;
  46 }
  47
  48 int ipx_kali_OpenSocket(ipx_socket_t *sk, int port)
  49 {
  50         printf("IPX_kali: OpenSocket on port(%d)\n", port);
  51
  52         if (!open_sockets) {
  53                 if (have_empty_address()) {
  54                         if (ipx_kali_GetMyAddress() < 0) {
  55                                 printf("IPX_kali: Error communicating with KaliNix\n");
  56                                 return -1;
  57                         }
  58                 }
  59         }
  60         if (!port)
  61                 port = dynamic_socket++;
  62
  63         if ((sk->fd = KaliOpenSocket(htons(port))) < 0) {
  64                 printf("IPX_kali: OpenSocket Failed on port(%d)\n", port);
  65                 sk->fd = -1;
  66                 return -1;
  67         }
  68         open_sockets++;
  69         last_socket = port;
  70         sk->socket = port;
  71         return 0;
  72 }
  73
  74 void ipx_kali_CloseSocket(ipx_socket_t *mysock)
  75 {
  76         if (!open_sockets) {
  77                 printf("IPX_kali: close w/o open\n");
  78                 return;
  79         }
  80         printf("IPX_kali: CloseSocket on port(%d)\n", mysock->socket);
  81         KaliCloseSocket(mysock->fd);
  82         if (--open_sockets) {
  83                 printf("IPX_kali: (closesocket) %d sockets left\n", open_sockets);
  84                 return;
  85         }
  86 }
  87
  88 int ipx_kali_SendPacket(ipx_socket_t *mysock, IPXPacket_t *IPXHeader,
  89  u_char *data, int dataLen)
  90 {
  91         kaliaddr_ipx toaddr;
  92         int i;
  93
  94         memcpy(toaddr.sa_nodenum, IPXHeader->Destination.Node, sizeof(toaddr.sa_nodenum));
  95         memcpy(&toaddr.sa_socket, IPXHeader->Destination.Socket, sizeof(toaddr.sa_socket));
  96
  97         if ((i = KaliSendPacket(mysock->fd, (char *)data, dataLen, &toaddr)) < 0)
  98                 return -1;
  99
 100         return i;
 101 }
 102
 103 int ipx_kali_ReceivePacket(ipx_socket_t *s, char *outbuf, int outbufsize,
 104  struct ipx_recv_data *rd)
 105 {
 106         int size;
 107         kaliaddr_ipx fromaddr;
 108
 109         if ((size = KaliReceivePacket(s->fd, outbuf, outbufsize, &fromaddr)) < 0)
 110                 return -1;
 111
 112         rd->dst_socket = s->socket;
 113         rd->src_socket = ntohs(fromaddr.sa_socket);
 114         memcpy(rd->src_node, fromaddr.sa_nodenum, sizeof(fromaddr.sa_nodenum));
 115         memset(rd->src_network, 0, 4);
 116         rd->pkt_type = 0;
 117
 118         return size;
 119 }
 120
 121 struct ipx_driver ipx_kali = {
 122         ipx_kali_GetMyAddress,
 123         ipx_kali_OpenSocket,
 124         ipx_kali_CloseSocket,
 125         ipx_kali_SendPacket,
 126         ipx_kali_ReceivePacket,
 127         ipx_general_PacketReady,
 128         NULL,   // InitNetgameAuxData
 129         NULL,   // HandleNetgameAuxData
 130         NULL,   // HandleLeaveGame
 131         NULL    // SendGamePacket
 132 };