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Use AF_LINK rather than AF_UNSPEC to set an ethernet multicast address.

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This is obviously  not a terribly used function as it's apparently been
broken forever.
It IS possible that this fix is wrong and that the KERNEL is wrong
(in which case you should fix if_ethersubr.c) either way it certainly has more hope of
working now than before. I'd take it to 2.2 except that obviously no-one cares :-)
This commit is contained in:
Julian Elischer 1998-05-28 07:31:30 +00:00
parent c17155d44b
commit 4a71a2e71b
1 changed files with 33 additions and 14 deletions
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47
usr.sbin/mtest/mtest.c
View File

@ -11,6 +11,7 @@
#include <sys/socket.h>
#include <sys/time.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
@ -97,6 +98,8 @@ main( argc, argv )
case 'a':
{
struct sockaddr_dl *dlp;
unsigned char *bp;
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%s %x.%x.%x.%x.%x.%x",
@ -105,13 +108,20 @@ main( argc, argv )
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;
dlp = (struct sockaddr_dl *)&ifr.ifr_addr;
dlp->sdl_len = sizeof(struct sockaddr_dl);
dlp->sdl_family = AF_LINK;
dlp->sdl_index = 0;
dlp->sdl_nlen = 0;
dlp->sdl_alen = 6;
dlp->sdl_slen = 0;
bp = LLADDR(dlp);
bp[0] = e1;
bp[1] = e2;
bp[2] = e3;
bp[3] = e4;
bp[4] = e5;
bp[5] = e6;
if( ioctl( so, SIOCADDMULTI, &ifr ) == -1 )
warn( "can't add ether address" );
else printf( "ether address added\n" );
@ -120,6 +130,8 @@ main( argc, argv )
case 'd':
{
struct sockaddr_dl *dlp;
unsigned char *bp;
++lineptr;
while( *lineptr == ' ' || *lineptr == '\t' ) ++lineptr;
if( (n = sscanf( lineptr, "%s %x.%x.%x.%x.%x.%x",
@ -128,13 +140,20 @@ main( argc, argv )
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;
dlp = (struct sockaddr_dl *)&ifr.ifr_addr;
dlp->sdl_len = sizeof(struct sockaddr_dl);
dlp->sdl_family = AF_LINK;
dlp->sdl_index = 0;
dlp->sdl_nlen = 0;
dlp->sdl_alen = 6;
dlp->sdl_slen = 0;
bp = LLADDR(dlp);
bp[0] = e1;
bp[1] = e2;
bp[2] = e3;
bp[3] = e4;
bp[4] = e5;
bp[5] = e6;
if( ioctl( so, SIOCDELMULTI, &ifr ) == -1 )
warn( "can't delete ether address" );
else printf( "ether address deleted\n" );