diff options
Diffstat (limited to 'sys/kern/kern_vimage.c')
| -rw-r--r-- | sys/kern/kern_vimage.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/sys/kern/kern_vimage.c b/sys/kern/kern_vimage.c deleted file mode 100644 index 9c86b75..0000000 --- a/sys/kern/kern_vimage.c +++ /dev/null @@ -1,186 +0,0 @@ -/*- - * Copyright (c) 2004-2009 University of Zagreb - * Copyright (c) 2006-2009 FreeBSD Foundation - * - * This software was developed by the University of Zagreb and the - * FreeBSD Foundation under sponsorship by the Stichting NLnet and the - * FreeBSD Foundation. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "opt_ddb.h" - -#include <sys/param.h> -#include <sys/jail.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/malloc.h> -#include <sys/socket.h> -#include <sys/sockio.h> -#include <sys/sx.h> -#include <sys/vimage.h> -#ifdef DDB -#include <ddb/ddb.h> -#endif - -#include <net/if.h> -#include <net/route.h> -#include <net/vnet.h> - -MALLOC_DEFINE(M_VNET, "vnet", "network stack control block"); - -struct rwlock vnet_rwlock; -struct sx vnet_sxlock; - -#define VNET_LIST_WLOCK() do { \ - sx_xlock(&vnet_sxlock); \ - rw_wlock(&vnet_rwlock); \ -} while (0) - -#define VNET_LIST_WUNLOCK() do { \ - rw_wunlock(&vnet_rwlock); \ - sx_xunlock(&vnet_sxlock); \ -} while (0) - -struct vnet_list_head vnet_head; -struct vnet *vnet0; - - -struct vnet * -vnet_alloc(void) -{ - struct vnet *vnet; - - vnet = malloc(sizeof(struct vnet), M_VNET, M_WAITOK | M_ZERO); - vnet->vnet_magic_n = VNET_MAGIC_N; - vnet_data_init(vnet); - - /* Initialize / attach vnet module instances. */ - CURVNET_SET_QUIET(vnet); - - sx_xlock(&vnet_sxlock); - vnet_sysinit(); - CURVNET_RESTORE(); - - rw_wlock(&vnet_rwlock); - LIST_INSERT_HEAD(&vnet_head, vnet, vnet_le); - VNET_LIST_WUNLOCK(); - - return (vnet); -} - -void -vnet_destroy(struct vnet *vnet) -{ - struct ifnet *ifp, *nifp; - - KASSERT(vnet->vnet_sockcnt == 0, - ("%s: vnet still has sockets", __func__)); - - VNET_LIST_WLOCK(); - LIST_REMOVE(vnet, vnet_le); - rw_wunlock(&vnet_rwlock); - - CURVNET_SET_QUIET(vnet); - - /* Return all inherited interfaces to their parent vnets. */ - TAILQ_FOREACH_SAFE(ifp, &V_ifnet, if_link, nifp) { - if (ifp->if_home_vnet != ifp->if_vnet) - if_vmove(ifp, ifp->if_home_vnet); - } - - vnet_sysuninit(); - sx_xunlock(&vnet_sxlock); - - CURVNET_RESTORE(); - - /* Hopefully, we are OK to free the vnet container itself. */ - vnet_data_destroy(vnet); - vnet->vnet_magic_n = 0xdeadbeef; - free(vnet, M_VNET); -} - -void -vnet_foreach(void (*vnet_foreach_fn)(struct vnet *, void *), void *arg) -{ - struct vnet *vnet; - - VNET_LIST_RLOCK(); - LIST_FOREACH(vnet, &vnet_head, vnet_le) - vnet_foreach_fn(vnet, arg); - VNET_LIST_RUNLOCK(); -} - -static void -vnet_init_prelink(void *arg) -{ - - rw_init(&vnet_rwlock, "vnet_rwlock"); - sx_init(&vnet_sxlock, "vnet_sxlock"); - LIST_INIT(&vnet_head); -} -SYSINIT(vnet_init_prelink, SI_SUB_VNET_PRELINK, SI_ORDER_FIRST, - vnet_init_prelink, NULL); - -static void -vnet0_init(void *arg) -{ - - /* - * We MUST clear curvnet in vi_init_done() before going SMP, - * otherwise CURVNET_SET() macros would scream about unnecessary - * curvnet recursions. - */ - curvnet = prison0.pr_vnet = vnet0 = vnet_alloc(); -} -SYSINIT(vnet0_init, SI_SUB_VNET, SI_ORDER_FIRST, vnet0_init, NULL); - -static void -vnet_init_done(void *unused) -{ - - curvnet = NULL; -} - -SYSINIT(vnet_init_done, SI_SUB_VNET_DONE, SI_ORDER_FIRST, vnet_init_done, - NULL); - -#ifdef DDB -DB_SHOW_COMMAND(vnets, db_show_vnets) -{ - VNET_ITERATOR_DECL(vnet_iter); - -#if SIZE_MAX == UINT32_MAX /* 32-bit arch */ - db_printf(" vnet ifs socks\n"); -#else /* 64-bit arch, most probaly... */ - db_printf(" vnet ifs socks\n"); -#endif - VNET_FOREACH(vnet_iter) { - db_printf("%p %3d %5d\n", vnet_iter, vnet_iter->vnet_ifcnt, - vnet_iter->vnet_sockcnt); - } -} -#endif |
