Date: Thu, 12 Aug 2004 11:59:28 +0400 From: Gleb Smirnoff <glebius@freebsd.org> To: current@freebsd.org Subject: if_index in struct ifnet broken in recent CURRENT Message-ID: <20040812075928.GA21205@cell.sick.ru> In-Reply-To: <20040812075053.GA21129@cell.sick.ru> References: <20040812075053.GA21129@cell.sick.ru>
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Hmm, some more information: actually if_index is broken
not only in in mbuf packet headers.
This code with different addresses:
bzero((caddr_t)&ro, sizeof(ro));
sin = (struct sockaddr_in *)&ro.ro_dst;
sin->sin_len = sizeof(*sin);
sin->sin_family = AF_INET;
sin->sin_addr = \\some address\\;
rtalloc_ign(&ro, RTF_CLONING);
if (ro.ro_rt != NULL) {
struct rtentry *rt = ro.ro_rt;
printf("rt idx %d, name %s\n",
rt->rt_ifp->if_index,
rt->rt_ifp->if_xname);
produces
rt idx 0, name fxp0
rt idx 0, name lo0
On Thu, Aug 12, 2004 at 11:50:53AM +0400, Gleb Smirnoff wrote:
T> I can see this at least in fxp driver: if I capture packets using
T> ng_ether(4), and check interface name like this
T>
T> printf("idx %d, name %s\n",
T> (*m)->m_pkthdr.rcvif->if_index,
T> (*m)->m_pkthdr.rcvif->if_xname);
T> I get on console:
T>
T> idx 0, name fxp0
T>
T> Really fxp's index is 1 (AFAIK if_index must be > 0), I have checked this
T> using if_nametoindex() from userland.
--
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE
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