d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

A multicast testing program, allowing you to join and leave both

Browse Source 
IP and ethernet multicast groups.

Obtained from:	Multicast release 3.5
This commit is contained in:
fenner 1996-12-15 21:30:02 +00:00
commit 2f4f34d743
1 changed files with 206 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

206
usr.sbin/mtest/mtest.c Normal file
View File

@ -0,0 +1,206 @@
/*
* Program to test new [sg]etsockopts and ioctls for manipulating IP and
* Ethernet multicast address filters.
*
* Written by Steve Deering, Stanford University, February 1989.
*/
#define MULTICAST
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
main( argc, argv )
int argc;
char **argv;
{
int so;
char line[80];
char *lineptr;
struct ip_mreq imr;
struct ifreq ifr;
int n, f;
unsigned i1, i2, i3, i4, g1, g2, g3, g4;
unsigned e1, e2, e3, e4, e5, e6;
if( (so = socket( AF_INET, SOCK_DGRAM, 0 )) == -1)
{
perror( "can't open socket" );
exit( 1 );
}
printf( "multicast membership test program; " );
printf( "enter ? for list of commands\n" );
while( fgets( line, 79, stdin ) != NULL )
{
lineptr = line;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
switch( *lineptr )
{
case '?':
{
printf( "%s%s%s%s%s%s%s",
" j g.g.g.g i.i.i.i - join IP multicast group \n",
" l g.g.g.g i.i.i.i - leave IP multicast group \n",
" a ifname e.e.e.e.e.e - add ether multicast address \n",
" d ifname e.e.e.e.e.e - del ether multicast address \n",
" m ifname 1/0 - set/clear ether allmulti flag \n",
" p ifname 1/0 - set/clear ether promisc flag \n",
" q - quit \n\n" );
break;
}
case 'j':
{
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%u.%u.%u.%u %u.%u.%u.%u %u",
&g1, &g2, &g3, &g4, &i1, &i2, &i3, &i4 )) != 8 )
{
printf( "bad args\n" );
break;
}
imr.imr_multiaddr.s_addr = (g1<<24) | (g2<<16) | (g3<<8) | g4;
imr.imr_multiaddr.s_addr = htonl(imr.imr_multiaddr.s_addr);
imr.imr_interface.s_addr = (i1<<24) | (i2<<16) | (i3<<8) | i4;
imr.imr_interface.s_addr = htonl(imr.imr_interface.s_addr);
if( setsockopt( so, IPPROTO_IP, IP_ADD_MEMBERSHIP,
&imr, sizeof(struct ip_mreq) ) == -1 )
perror( "can't join group" );
else printf( "group joined\n" );
break;
}
case 'l':
{
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%u.%u.%u.%u %u.%u.%u.%u %u",
&g1, &g2, &g3, &g4, &i1, &i2, &i3, &i4 )) != 8 )
{
printf( "bad args\n" );
break;
}
imr.imr_multiaddr.s_addr = (g1<<24) | (g2<<16) | (g3<<8) | g4;
imr.imr_multiaddr.s_addr = htonl(imr.imr_multiaddr.s_addr);
imr.imr_interface.s_addr = (i1<<24) | (i2<<16) | (i3<<8) | i4;
imr.imr_interface.s_addr = htonl(imr.imr_interface.s_addr);
if( setsockopt( so, IPPROTO_IP, IP_DROP_MEMBERSHIP,
&imr, sizeof(struct ip_mreq) ) == -1 )
perror( "can't leave group" );
else printf( "group left\n" );
break;
}
case 'a':
{
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%s %x.%x.%x.%x.%x.%x",
ifr.ifr_name, &e1, &e2, &e3, &e4, &e5, &e6 )) != 7 )
{
printf( "bad args\n" );
break;
}
ifr.ifr_addr.sa_family = AF_UNSPEC;
ifr.ifr_addr.sa_data[0] = e1;
ifr.ifr_addr.sa_data[1] = e2;
ifr.ifr_addr.sa_data[2] = e3;
ifr.ifr_addr.sa_data[3] = e4;
ifr.ifr_addr.sa_data[4] = e5;
ifr.ifr_addr.sa_data[5] = e6;
if( ioctl( so, SIOCADDMULTI, &ifr ) == -1 )
perror( "can't add ether adress" );
else printf( "ether address added\n" );
break;
}
case 'd':
{
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%s %x.%x.%x.%x.%x.%x",
ifr.ifr_name, &e1, &e2, &e3, &e4, &e5, &e6 )) != 7 )
{
printf( "bad args\n" );
break;
}
ifr.ifr_addr.sa_family = AF_UNSPEC;
ifr.ifr_addr.sa_data[0] = e1;
ifr.ifr_addr.sa_data[1] = e2;
ifr.ifr_addr.sa_data[2] = e3;
ifr.ifr_addr.sa_data[3] = e4;
ifr.ifr_addr.sa_data[4] = e5;
ifr.ifr_addr.sa_data[5] = e6;
if( ioctl( so, SIOCDELMULTI, &ifr ) == -1 )
perror( "can't delete ether adress" );
else printf( "ether address deleted\n" );
break;
}
case 'm':
{
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%s %u", ifr.ifr_name, &f )) != 2 )
{
printf( "bad args\n" );
break;
}
if( ioctl( so, SIOCGIFFLAGS, &ifr ) == -1 )
{
perror( "can't get interface flags" );
break;
}
printf( "interface flags %x, ", ifr.ifr_flags );
fflush( stdout );
if( f ) ifr.ifr_flags |= IFF_ALLMULTI;
else ifr.ifr_flags &= ~IFF_ALLMULTI;
if( ioctl( so, SIOCSIFFLAGS, &ifr ) == -1 )
perror( "can't set" );
else printf( "changed to %x\n", ifr.ifr_flags );
break;
}
case 'p':
{
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%s %u", ifr.ifr_name, &f )) != 2 )
{
printf( "bad args\n" );
break;
}
if( ioctl( so, SIOCGIFFLAGS, &ifr ) == -1 )
{
perror( "can't get interface flags" );
break;
}
printf( "interface flags %x, ", ifr.ifr_flags );
fflush( stdout );
if( f ) ifr.ifr_flags |= IFF_PROMISC;
else ifr.ifr_flags &= ~IFF_PROMISC;
if( ioctl( so, SIOCSIFFLAGS, &ifr ) == -1 )
perror( "can't set" );
else printf( "changed to %x\n", ifr.ifr_flags );
break;
}
case 'q': exit( 0 );
case 0:
case '\n': break;
default:
{
printf( "bad command\n" );
break;
}
}
}
}