7b573d1496
container structures, depending on VIMAGE_GLOBALS compile time option. Make VIMAGE_GLOBALS a new compile-time option, which by default will not be defined, resulting in instatiations of global variables selected for V_irtualization (enclosed in #ifdef VIMAGE_GLOBALS blocks) to be effectively compiled out. Instantiate new global container structures to hold V_irtualized variables: vnet_net_0, vnet_inet_0, vnet_inet6_0, vnet_ipsec_0, vnet_netgraph_0, and vnet_gif_0. Update the VSYM() macro so that depending on VIMAGE_GLOBALS the V_ macros resolve either to the original globals, or to fields inside container structures, i.e. effectively #ifdef VIMAGE_GLOBALS #define V_rt_tables rt_tables #else #define V_rt_tables vnet_net_0._rt_tables #endif Update SYSCTL_V_*() macros to operate either on globals or on fields inside container structs. Extend the internal kldsym() lookups with the ability to resolve selected fields inside the virtualization container structs. This applies only to the fields which are explicitly registered for kldsym() visibility via VNET_MOD_DECLARE() and vnet_mod_register(), currently this is done only in sys/net/if.c. Fix a few broken instances of MODULE_GLOBAL() macro use in SCTP code, and modify the MODULE_GLOBAL() macro to resolve to V_ macros, which in turn result in proper code being generated depending on VIMAGE_GLOBALS. De-virtualize local static variables in sys/contrib/pf/net/pf_subr.c which were prematurely V_irtualized by automated V_ prepending scripts during earlier merging steps. PF virtualization will be done separately, most probably after next PF import. Convert a few variable initializations at instantiation to initialization in init functions, most notably in ipfw. Also convert TUNABLE_INT() initializers for V_ variables to TUNABLE_FETCH_INT() in initializer functions. Discussed at: devsummit Strassburg Reviewed by: bz, julian Approved by: julian (mentor) Obtained from: //depot/projects/vimage-commit2/... X-MFC after: never Sponsored by: NLnet Foundation, The FreeBSD Foundation
145 lines
4.6 KiB
C
145 lines
4.6 KiB
C
/* $FreeBSD$ */
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/* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $ */
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/*-
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* if_gif.h
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*/
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#ifndef _NET_IF_GIF_H_
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#define _NET_IF_GIF_H_
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#ifdef _KERNEL
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include <netinet/in.h>
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/* xxx sigh, why route have struct route instead of pointer? */
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struct encaptab;
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extern void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp,
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int af);
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extern void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m,
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int af);
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extern int (*ng_gif_output_p)(struct ifnet *ifp, struct mbuf **mp);
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extern void (*ng_gif_attach_p)(struct ifnet *ifp);
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extern void (*ng_gif_detach_p)(struct ifnet *ifp);
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struct gif_softc {
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struct ifnet *gif_ifp;
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struct mtx gif_mtx;
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struct sockaddr *gif_psrc; /* Physical src addr */
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struct sockaddr *gif_pdst; /* Physical dst addr */
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union {
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struct route gifscr_ro; /* xxx */
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#ifdef INET6
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struct route_in6 gifscr_ro6; /* xxx */
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#endif
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} gifsc_gifscr;
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int gif_flags;
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u_int gif_fibnum;
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const struct encaptab *encap_cookie4;
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const struct encaptab *encap_cookie6;
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void *gif_netgraph; /* ng_gif(4) netgraph node info */
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LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
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};
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#define GIF2IFP(sc) ((sc)->gif_ifp)
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#define GIF_LOCK_INIT(sc) mtx_init(&(sc)->gif_mtx, "gif softc", \
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NULL, MTX_DEF)
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#define GIF_LOCK_DESTROY(sc) mtx_destroy(&(sc)->gif_mtx)
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#define GIF_LOCK(sc) mtx_lock(&(sc)->gif_mtx)
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#define GIF_UNLOCK(sc) mtx_unlock(&(sc)->gif_mtx)
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#define GIF_LOCK_ASSERT(sc) mtx_assert(&(sc)->gif_mtx, MA_OWNED)
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#define gif_ro gifsc_gifscr.gifscr_ro
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#ifdef INET6
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#define gif_ro6 gifsc_gifscr.gifscr_ro6
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#endif
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#define GIF_MTU (1280) /* Default MTU */
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#define GIF_MTU_MIN (1280) /* Minimum MTU */
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#define GIF_MTU_MAX (8192) /* Maximum MTU */
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#define MTAG_GIF 1080679712
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#define MTAG_GIF_CALLED 0
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struct etherip_header {
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u_int8_t eip_ver; /* version/reserved */
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u_int8_t eip_pad; /* required padding byte */
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};
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#define ETHERIP_VER_VERS_MASK 0x0f
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#define ETHERIP_VER_RSVD_MASK 0xf0
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#define ETHERIP_VERSION 0x03
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/* Prototypes */
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void gif_input(struct mbuf *, int, struct ifnet *);
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int gif_output(struct ifnet *, struct mbuf *, struct sockaddr *,
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struct rtentry *);
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int gif_ioctl(struct ifnet *, u_long, caddr_t);
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int gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *);
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void gif_delete_tunnel(struct ifnet *);
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int gif_encapcheck(const struct mbuf *, int, int, void *);
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/*
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* Virtualization support
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*/
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struct vnet_gif {
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LIST_HEAD(, gif_softc) _gif_softc_list;
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int _max_gif_nesting;
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int _parallel_tunnels;
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int _ip_gif_ttl;
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int _ip6_gif_hlim;
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};
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#ifndef VIMAGE
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#ifndef VIMAGE_GLOBALS
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extern struct vnet_gif vnet_gif_0;
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#endif
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#endif
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#define INIT_VNET_GIF(vnet) \
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INIT_FROM_VNET(vnet, VNET_MOD_GIF, struct vnet_gif, vnet_gif)
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#define VNET_GIF(sym) VSYM(vnet_gif, sym)
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#define V_gif_softc_list VNET_GIF(gif_softc_list)
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#define V_max_gif_nesting VNET_GIF(max_gif_nesting)
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#define V_parallel_tunnels VNET_GIF(parallel_tunnels)
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#define V_ip_gif_ttl VNET_GIF(ip_gif_ttl)
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#define V_ip6_gif_hlim VNET_GIF(ip6_gif_hlim)
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#endif /* _KERNEL */
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#endif /* _NET_IF_GIF_H_ */
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