Marko Zec 21ca7b57bd Change the curvnet variable from a global const struct vnet *, ... previously always pointing to the default vnet context, to a dynamically changing thread-local one. The currvnet context should be set on entry to networking code via CURVNET_SET() macros, and reverted to previous state via CURVNET_RESTORE(). Recursions on curvnet are permitted, though strongly discuouraged. This change should have no functional impact on nooptions VIMAGE kernel builds, where CURVNET_* macros expand to whitespace. The curthread->td_vnet (aka curvnet) variable's purpose is to be an indicator of the vnet context in which the current network-related operation takes place, in case we cannot deduce the current vnet context from any other source, such as by looking at mbuf's m->m_pkthdr.rcvif->if_vnet, sockets's so->so_vnet etc. Moreover, so far curvnet has turned out to be an invaluable consistency checking aid: it helps to catch cases when sockets, ifnets or any other vnet-aware structures may have leaked from one vnet to another. The exact placement of the CURVNET_SET() / CURVNET_RESTORE() macros was a result of an empirical iterative process, whith an aim to reduce recursions on CURVNET_SET() to a minimum, while still reducing the scope of CURVNET_SET() to networking only operations - the alternative would be calling CURVNET_SET() on each system call entry. In general, curvnet has to be set in three typicall cases: when processing socket-related requests from userspace or from within the kernel; when processing inbound traffic flowing from device drivers to upper layers of the networking stack, and when executing timer-driven networking functions. This change also introduces a DDB subcommand to show the list of all vnet instances. Approved by: julian (mentor)		2009-05-05 10:56:12 +00:00
..
ah.h
ah_var.h
esp.h
esp_var.h
ipcomp.h
ipcomp_var.h
ipip_var.h	Second round of putting global variables, which were virtualized	2008-12-13 19:13:03 +00:00
ipsec.c	Permit buiding kernels with options VIMAGE, restricted to only a single	2009-04-30 13:36:26 +00:00
ipsec.h	Try to remove/assimilate as much of formerly IPv4/6 specific	2009-02-08 09:27:07 +00:00
ipsec6.h	Try to remove/assimilate as much of formerly IPv4/6 specific	2009-02-08 09:27:07 +00:00
ipsec_input.c	Rather than using hidden includes (with cicular dependencies),	2008-12-02 21:37:28 +00:00
ipsec_mbuf.c	Remove remain <= MHLEN restriction in m_makespace(),	2009-01-28 10:41:10 +00:00
ipsec_output.c	Use NULL rather than 0 when comparing pointers.	2009-01-30 20:17:08 +00:00
key.c	Stub out IN6_LOOKUP_MULTI() for GETSPI requests, for now.	2009-04-29 11:15:58 +00:00
key.h	key_gettunnel() has been unsued with FAST_IPSEC (now IPSEC).	2009-04-27 21:04:16 +00:00
key_debug.c	Shuffle the vimage.h includes or add where missing.	2009-02-27 13:22:26 +00:00
key_debug.h	Commit step 1 of the vimage project, (network stack)	2008-08-17 23:27:27 +00:00
key_var.h	First steps towards IPSec cleanup.	2006-03-25 13:38:52 +00:00
keydb.h	First steps towards IPSec cleanup.	2006-03-25 13:38:52 +00:00
keysock.c	For all files including net/vnet.h directly include opt_route.h and	2009-02-27 14:12:05 +00:00
keysock.h	Unhide declarations of network stack virtualization structs from	2008-11-28 23:30:51 +00:00
vipsec.h	Make indentation more uniform accross vnet container structs.	2009-05-02 08:16:26 +00:00
xform.h	Add sysctls to if_enc(4) to control whether the firewalls or	2007-11-28 22:33:53 +00:00
xform_ah.c	Introduce vnet module registration / initialization framework with	2009-04-11 05:58:58 +00:00
xform_esp.c	Introduce vnet module registration / initialization framework with	2009-04-11 05:58:58 +00:00
xform_ipcomp.c	Introduce vnet module registration / initialization framework with	2009-04-11 05:58:58 +00:00
xform_ipip.c	Introduce vnet module registration / initialization framework with	2009-04-11 05:58:58 +00:00
xform_tcp.c	Change the curvnet variable from a global const struct vnet *,	2009-05-05 10:56:12 +00:00