186 lines
4.2 KiB
C
186 lines
4.2 KiB
C
/* IPX driver using BSD style sockets */
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/* Mostly taken from dosemu */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <string.h>
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#ifdef HAVE_NETIPX_IPX_H
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#include <netipx/ipx.h>
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#else
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# include <linux/ipx.h>
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# ifndef IPX_TYPE
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# define IPX_TYPE 1
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# endif
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#endif
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#include <netinet/in.h>
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#include <unistd.h>
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#include <errno.h>
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#include "netdrv.h"
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#include "console.h"
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static int ipx_get_my_address( void )
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{
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int sock;
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struct sockaddr_ipx ipxs;
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struct sockaddr_ipx ipxs2;
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socklen_t len;
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int i;
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sock=socket(AF_IPX,SOCK_DGRAM,PF_IPX);
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if(sock==-1)
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{
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con_printf(CON_URGENT,"IPX: could not open socket in GetMyAddress\n");
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return(-1);
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}
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/* bind this socket to network 0 */
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ipxs.sipx_family=AF_IPX;
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memcpy(&ipxs.sipx_network, MyAddress, 4);
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ipxs.sipx_port=0;
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if(bind(sock,(struct sockaddr *)&ipxs,sizeof(ipxs))==-1)
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{
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con_printf(CON_URGENT,"IPX: could bind to network 0 in GetMyAddress\n");
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close( sock );
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return(-1);
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}
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len = sizeof(ipxs2);
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if (getsockname(sock,(struct sockaddr *)&ipxs2,&len) < 0)
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{
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con_printf(CON_URGENT,"IPX: could not get socket name in GetMyAddress\n");
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close( sock );
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return(-1);
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}
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memcpy(MyAddress, &ipxs2.sipx_network, 4);
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for (i = 0; i < 6; i++)
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{
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MyAddress[4+i] = ipxs2.sipx_node[i];
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}
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close( sock );
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return(0);
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}
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static int ipx_open_socket(socket_t *sk, int port)
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{
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int sock; /* sock here means Linux socket handle */
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int opt;
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struct sockaddr_ipx ipxs;
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socklen_t len;
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struct sockaddr_ipx ipxs2;
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/* do a socket call, then bind to this port */
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sock = socket(AF_IPX, SOCK_DGRAM, PF_IPX);
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if (sock == -1) {
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con_printf(CON_URGENT,"IPX: could not open IPX socket.\n");
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return -1;
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}
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opt = 1;
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/* Permit broadcast output */
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if (setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &opt, sizeof(opt)) == -1)
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{
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con_printf(CON_URGENT,"IPX: could not set socket option for broadcast.\n");
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return -1;
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}
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ipxs.sipx_family = AF_IPX;
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ipxs.sipx_network = *((unsigned int *)&MyAddress[0]);
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/* ipxs.sipx_network = htonl(MyNetwork); */
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bzero(ipxs.sipx_node, 6); /* Please fill in my node name */
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ipxs.sipx_port = htons(port);
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/* now bind to this port */
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if (bind(sock, (struct sockaddr *) &ipxs, sizeof(ipxs)) == -1)
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{
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con_printf(CON_URGENT,"IPX: could not bind socket to address\n");
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close( sock );
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return -1;
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}
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if( port==0 )
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{
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len = sizeof(ipxs2);
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if (getsockname(sock,(struct sockaddr *)&ipxs2,&len) < 0)
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{
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con_printf(CON_URGENT,"IPX: could not get socket name in ipx_open_socket\n");
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close( sock );
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return -1;
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}
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else
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{
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port = htons(ipxs2.sipx_port);
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con_printf(CON_URGENT,"IPX: opened dynamic socket %04x\n", port);
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}
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}
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sk->fd = sock;
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sk->socket = port;
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ipx_get_my_address();
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return 0;
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}
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static void ipx_close_socket(socket_t *mysock)
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{
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/* now close the file descriptor for the socket, and free it */
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con_printf(CON_URGENT,"IPX: closing file descriptor on socket %x\n", mysock->socket);
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close(mysock->fd);
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}
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static int ipx_send_packet(socket_t *mysock, IPXPacket_t *IPXHeader, u_char *data, int dataLen)
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{
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struct sockaddr_ipx ipxs;
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ipxs.sipx_family = AF_IPX;
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/* get destination address from IPX packet header */
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memcpy(&ipxs.sipx_network, IPXHeader->Destination.Network, 4);
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/* if destination address is 0, then send to my net */
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if (ipxs.sipx_network == 0)
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{
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ipxs.sipx_network = *((unsigned int *)&MyAddress[0]);
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}
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memcpy(&ipxs.sipx_node, IPXHeader->Destination.Node, 6);
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ipxs.sipx_port=htons(mysock->socket);
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ipxs.sipx_type = IPXHeader->PacketType;
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return sendto(mysock->fd, data, dataLen, 0, (struct sockaddr *) &ipxs, sizeof(ipxs));
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}
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static int ipx_receive_packet(socket_t *s, char *buffer, int bufsize, struct recv_data *rd)
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{
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socklen_t sz;
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int size;
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struct sockaddr_ipx ipxs;
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sz = sizeof(ipxs);
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if ((size = recvfrom(s->fd, buffer, bufsize, 0, (struct sockaddr *) &ipxs, &sz)) <= 0)
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return size;
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memcpy(rd->src_network, &ipxs.sipx_network, 4);
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memcpy(rd->src_node, ipxs.sipx_node, 6);
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rd->src_socket = ipxs.sipx_port;
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rd->dst_socket = s->socket;
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rd->pkt_type = ipxs.sipx_type;
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return size;
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}
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static int ipx_general_packet_ready(socket_t *s)
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{
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return netdrv_general_packet_ready(s->fd);
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}
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struct net_driver netdrv_ipx = {
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ipx_open_socket,
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ipx_close_socket,
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ipx_send_packet,
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ipx_receive_packet,
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ipx_general_packet_ready,
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1,
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NETPROTO_IPX
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};
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