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Treat multicast packets as incoming, rather than incoming (IPv4) or not at all

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(IPv6).  Patch by Andreas Schwab <schwab@linux-m68k.org>
This commit is contained in:
pdw
2014-01-01 14:40:44 +00:00
parent a966319256
commit a5557a1bcf
1 changed files with 10 additions and 0 deletions
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iftop.c
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@@ -305,6 +305,14 @@ static void handle_ip_packet(struct ip* iptr, int hw_dir)
assign_addr_pair(&ap, iptr, 1);
direction = 0;
}
else if (IP_V(iptr) == 4 && IN_MULTICAST(iptr->ip_dst.s_addr)) {
assign_addr_pair(&ap, iptr, 1);
direction = 0;
}
else if (IP_V(iptr) == 6 && IN6_IS_ADDR_MULTICAST(&ip6tr->ip6_dst)) {
assign_addr_pair(&ap, iptr, 1);
direction = 0;
}
/*
* Cannot determine direction from hardware or IP levels. Therefore
* assume that it was a packet between two other machines, assign
@@ -323,6 +331,8 @@ static void handle_ip_packet(struct ip* iptr, int hw_dir)
direction = 0;
}
/* Drop other uncertain packages. */
else
return;
}
if(IP_V(iptr) == 4 && options.netfilter != 0) {