Step 1.5 of importing the network stack virtualization infrastructure

from the vimage project, as per plan established at devsummit 08/08:
http://wiki.freebsd.org/Image/Notes200808DevSummit

Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator
macros, and CURVNET_SET() context setting macros, all currently
resolving to NOPs.

Prepare for virtualization of selected SYSCTL objects by introducing a
family of SYSCTL_V_*() macros, currently resolving to their global
counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT().

Move selected #defines from sys/sys/vimage.h to newly introduced header
files specific to virtualized subsystems (sys/net/vnet.h,
sys/netinet/vinet.h etc.).

All the changes are verified to have zero functional impact at this
point in time by doing MD5 comparision between pre- and post-change
object files(*).

(*) netipsec/keysock.c did not validate depending on compile time options.

Implemented by:	julian, bz, brooks, zec
Reviewed by:	julian, bz, brooks, kris, rwatson, ...
Approved by:	julian (mentor)
Obtained from:	//depot/projects/vimage-commit2/...
X-MFC after:	never
Sponsored by:	NLnet Foundation, The FreeBSD Foundation

1 files changed, 3 insertions, 0 deletions

diff --git a/sys/compat/linux/linux_ioctl.c b/sys/compat/linux/linux_ioctl.c
index 9979a0c..9f16817 100644
--- a/sys/compat/linux/linux_ioctl.c
+++ b/sys/compat/linux/linux_ioctl.c
@@ -2051,6 +2051,7 @@ linux_ioctl_console(struct thread *td, struct linux_ioctl_args *args)
 int
 linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen)
 {
+	INIT_VNET_NET(ifp->if_vnet);
 	struct ifnet *ifscan;
 	int ethno;
 
@@ -2084,6 +2085,7 @@ linux_ifname(struct ifnet *ifp, char *buffer, size_t buflen)
 static struct ifnet *
 ifname_linux_to_bsd(const char *lxname, char *bsdname)
 {
+	INIT_VNET_NET(TD_TO_VNET(curthread));
 	struct ifnet *ifp;
 	int len, unit;
 	char *ep;
@@ -2124,6 +2126,7 @@ ifname_linux_to_bsd(const char *lxname, char *bsdname)
 static int
 linux_ifconf(struct thread *td, struct ifconf *uifc)
 {
+	INIT_VNET_NET(TD_TO_VNET(td));
 #ifdef COMPAT_LINUX32
 	struct l_ifconf ifc;
 #else