Remove obsolete files

[can-eth-gw.git] / user / canethgw.c

diff --git a/user/canethgw.c b/user/canethgw.c
deleted file mode 100644 (file)
index 5331a55..0000000
--- a/user/canethgw.c
+++ /dev/null
@@ -1,222 +0,0 @@
-#include <stdio.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <net/if.h>
-#include <linux/can.h>
-#include <linux/can/raw.h>
-#include <poll.h>
-
-#define GW_POLL_ETH 0
-#define GW_POLL_CAN 1
-/**/
-#define GW_IF_BIT 1
-#define GW_SRC_PORT_BIT 2
-#define GW_DEST_PORT_BIT 4
-#define GW_FILTER_BIT 8
-
-unsigned int opt_flag = 0;
-int sock_udp;
-int sock_can;
-struct can_filter flt;
-struct sockaddr_in udp_dest;
-
-/**
- *
- * @return true if frame should be dropped
- */
-bool filter_check( struct can_frame* cf )
-{
-       if( !(opt_flag & GW_FILTER_BIT) )
-               return false;
-
-       return ( (cf->can_id & flt.can_mask) == (flt.can_id & flt.can_mask) );
-}
-
-void send_to_can()
-{
-       struct can_frame cf;
-       read( sock_udp, &cf, sizeof(cf) );
-
-       if( !filter_check( &cf ) )
-       {
-               printf( "filter: drop\n" );
-               return;
-       }
-       
-       write( sock_can, &cf, sizeof(cf) );
-       
-       printf( "sending to can\n" );
-}
-
-void send_to_eth()
-{
-       struct can_frame cf;
-
-       read( sock_can, &cf, sizeof(cf) );
-
-       if( !filter_check( &cf ) )
-       {
-               printf( "filter: drop\n" );
-               return;
-       }
-
-       sendto( sock_udp, &cf, sizeof(cf), 0, (struct sockaddr*) &udp_dest, sizeof(udp_dest) );
-
-       printf( "sending to eth\n" );
-}
-
-void signal_exit( int sig )
-{
-       close( sock_udp );
-       close( sock_can );
-       printf( "exiting\n" );
-
-       exit( 0 );
-}
-
-int main( int argc, char* argv[] )
-{
-       struct sockaddr_in udp_addr;
-       struct sockaddr_can can_addr;
-       struct ifreq ifr;
-       struct pollfd pfd[2];
-       int polret;
-       int opt;
-       int src_port = 0, dest_port = 0;
-
-       flt.can_id = 0;
-       flt.can_mask = 0;
-
-       while( (opt = getopt( argc, argv, "s:d:f:i:" )) != -1 )
-       {
-               switch( opt )
-               {
-                       case 's':
-                               src_port = atoi( optarg );
-                               opt_flag |= GW_SRC_PORT_BIT;
-                               break;
-                       case 'd':
-                               dest_port = atoi( optarg );
-                               opt_flag |= GW_DEST_PORT_BIT;
-                               break;
-                       case 'f':
-                               if( sscanf( optarg, "%x:%x", &flt.can_id,
-                                  &flt.can_mask ) != 2 ) 
-                               {
-                                       fprintf( stderr, "error:\
-                                               bad filter format\n");
-                                       goto gw_error;
-                               }
-                               opt_flag |= GW_FILTER_BIT;
-                               break;
-                       case 'i':
-                               ifr.ifr_ifindex = if_nametoindex( optarg );
-                               if( ifr.ifr_ifindex == 0 )
-                               {
-                                       fprintf( stderr, "error: if_nametoindex\n" );
-                                       goto gw_error;
-                               }
-                               opt_flag |= GW_IF_BIT;
-                               break;
-               }
-       }
-
-       if( !((opt_flag & GW_SRC_PORT_BIT) && (opt_flag & GW_DEST_PORT_BIT) 
-               && (opt_flag & GW_DEST_PORT_BIT)) )
-       {
-               fprintf( stdout, "bad usage, example -i vcan0 -s 10501 -d 10502 -f 007:00000007\n" );
-               return -1;
-       }
-
-       signal( SIGINT, signal_exit );
-
-       /* prepare udp destination */
-       udp_dest.sin_family = AF_INET;
-       udp_dest.sin_addr.s_addr = inet_addr("127.0.0.1");
-       udp_dest.sin_port = htons(dest_port);
-
-       /* udp socket */
-       sock_udp = socket( PF_INET, SOCK_DGRAM, IPPROTO_UDP );
-       if( sock_udp < 0 )
-       {
-               fprintf( stderr, "error: socket(), udp\n" );
-               goto gw_error;
-       }
-
-       udp_addr.sin_family = AF_INET;
-       udp_addr.sin_port = htons(src_port);
-       udp_addr.sin_addr.s_addr = INADDR_ANY;
-
-       if( bind( sock_udp, (struct sockaddr*) &udp_addr, sizeof(udp_addr) ) < 0 )
-       {
-               fprintf( stderr, "error: bind(), udp\n" );
-               close( sock_udp );
-               goto gw_error;
-       }
-
-       /* can socket */
-       sock_can = socket( PF_CAN, SOCK_RAW, CAN_RAW );
-       if( sock_can < 0 )
-       {
-               fprintf( stderr, "error: socket(), can\n");
-               close( sock_can );
-               goto gw_error;
-       }
-
-       can_addr.can_family = AF_CAN;
-       can_addr.can_ifindex = ifr.ifr_ifindex;
-
-       if( bind( sock_can, (struct sockaddr*) &can_addr, sizeof(can_addr) ) < 0 )
-       {
-               fprintf( stderr, "error: bind(), can" );
-               goto gw_error;
-       }
-
-       /* poll */
-       pfd[GW_POLL_ETH].fd = sock_udp;
-       pfd[GW_POLL_ETH].events = POLLIN | POLLPRI;
-       pfd[GW_POLL_ETH].revents = 0;
-
-       pfd[GW_POLL_CAN].fd = sock_can;
-       pfd[GW_POLL_CAN].events = POLLIN | POLLPRI;
-       pfd[GW_POLL_CAN].revents = 0;
-
-       while(1)
-       {
-               printf( "polling\n" );
-               polret = poll( pfd, 2, -1 );
-               if( polret <= 0 )
-               {
-                       fprintf( stderr, "error: poll returned 0\n" );
-                       goto gw_clean;
-               }
-
-               if( pfd[GW_POLL_ETH].revents != 0 )
-               {
-                       send_to_can();
-               }
-               if( pfd[GW_POLL_CAN].revents != 0 )
-               {
-                       send_to_eth();
-               }
-
-               pfd[GW_POLL_ETH].revents = 0;
-               pfd[GW_POLL_CAN].revents = 0;
-       }
-
-       return 0;
-gw_clean:
-       close( sock_udp );
-       close( sock_can );
-gw_error:
-       return -1;
-}
-