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Date:      Fri, 23 Sep 2016 21:27:46 +0200
From:      Ben RUBSON <ben.rubson@gmail.com>
To:        FreeBSD Net <freebsd-net@freebsd.org>
Subject:   Re: netstat counts input traffic twice
Message-ID:  <2D30DE7E-2BA9-4554-83EB-B2F197355AD4@gmail.com>
In-Reply-To: <94953762-4397-476D-AD61-A39914F27938@gmail.com>
References:  <94953762-4397-476D-AD61-A39914F27938@gmail.com>

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> On 23 Sep 2016, at 19:59, Ben RUBSON <ben.rubson@gmail.com> wrote:
> 
> Hello,
> 
> I found a strange issue where input traffic is counted twice,
> sometimes more.

As a very disgusting & temporary workaround, I did the following,
so that statistics are made on the networks, not on the links :

--- usr.bin/netstat/if.c.ori	2016-08-12 02:08:29.000000000 +0200
+++ usr.bin/netstat/if.c	2016-09-23 21:20:03.000000000 +0200
@@ -513,19 +513,19 @@
 /*
  * Obtain stats for interface(s).
  */
 static void
 fill_iftot(struct iftot *st)
 {
 	struct ifaddrs *ifap, *ifa;
 	bool found = false;
 
 	if (getifaddrs(&ifap) != 0)
 		xo_err(EX_OSERR, "getifaddrs");
 
 	bzero(st, sizeof(*st));
 
 	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
-		if (ifa->ifa_addr->sa_family != AF_LINK)
+		if (ifa->ifa_addr->sa_family != AF_INET)
 			continue;
 		if (interface) {
 			if (strcmp(ifa->ifa_name, interface) == 0)



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