Date: Mon, 24 Aug 2009 10:14:09 +0000 (UTC) From: Marko Zec <zec@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r196504 - head/sys/net Message-ID: <200908241014.n7OAE96O089368@svn.freebsd.org>
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Author: zec Date: Mon Aug 24 10:14:09 2009 New Revision: 196504 URL: http://svn.freebsd.org/changeset/base/196504 Log: When moving ifnets from one vnet to another, and the ifnet has ifaddresses of AF_LINK type which thus have an embedded if_index "backpointer", we must update that if_index backpointer to reflect the new if_index that our ifnet just got assigned. This change affects only options VIMAGE builds. Submitted by: bz Reviewed by: bz Approved by: re (rwatson), julian (mentor) Modified: head/sys/net/if.c Modified: head/sys/net/if.c ============================================================================== --- head/sys/net/if.c Mon Aug 24 10:09:30 2009 (r196503) +++ head/sys/net/if.c Mon Aug 24 10:14:09 2009 (r196504) @@ -589,6 +589,21 @@ if_attach_internal(struct ifnet *ifp, in /* Reliably crash if used uninitialized. */ ifp->if_broadcastaddr = NULL; } +#ifdef VIMAGE + else { + /* + * Update the interface index in the link layer address + * of the interface. + */ + for (ifa = ifp->if_addr; ifa != NULL; + ifa = TAILQ_NEXT(ifa, ifa_link)) { + if (ifa->ifa_addr->sa_family == AF_LINK) { + sdl = (struct sockaddr_dl *)ifa->ifa_addr; + sdl->sdl_index = ifp->if_index; + } + } + } +#endif IFNET_WLOCK(); TAILQ_INSERT_TAIL(&V_ifnet, ifp, if_link);
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