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      1 /*-
      2  * Copyright (c) 2001 Brian Somers <brian (at) Awfulhak.org>
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     24  * SUCH DAMAGE.
     25  *
     26  * $FreeBSD: src/usr.sbin/ppp/ncp.h,v 1.2.26.1 2010/12/21 17:10:29 kensmith Exp $
     27  */
     28 
     29 struct port_range {
     30   unsigned nports;		/* How many ports */
     31   unsigned maxports;		/* How many allocated (malloc) ports */
     32   u_short *port;		/* The actual ports */
     33 };
     34 
     35 struct ncp {
     36   struct {
     37     u_long sendpipe;			/* route sendpipe size */
     38     u_long recvpipe;			/* route recvpipe size */
     39 
     40     struct {
     41       struct port_range tcp, udp;	/* The range of urgent ports */
     42       unsigned tos : 1;			/* Urgent IPTOS_LOWDELAY packets ? */
     43     } urgent;
     44   } cfg;
     45 
     46   int afq;			/* Next address family to queue */
     47 
     48   struct sticky_route *route;	/* List of dynamic routes */
     49 
     50   struct ipcp ipcp;		/* Our IPCP FSM */
     51 #ifndef NOINET6
     52   struct ipv6cp ipv6cp;		/* Our IPV6CP FSM */
     53 #endif
     54   struct mp mp;			/* Our MP */
     55 };
     56 
     57 extern void ncp_Init(struct ncp *, struct bundle *);
     58 extern void ncp_Destroy(struct ncp *);
     59 extern int ncp_fsmStart(struct ncp *, struct bundle *);
     60 extern void ncp_IfaceAddrAdded(struct ncp *, const struct iface_addr *);
     61 extern void ncp_IfaceAddrDeleted(struct ncp *, const struct iface_addr *);
     62 extern void ncp_SetLink(struct ncp *, struct link *);
     63 extern void ncp_Enqueue(struct ncp *, int, unsigned, char *, int);
     64 extern void ncp_DeleteQueues(struct ncp *);
     65 extern size_t ncp_QueueLen(struct ncp *);
     66 extern size_t ncp_FillPhysicalQueues(struct ncp *, struct bundle *);
     67 extern int ncp_PushPacket(struct ncp *, int *, struct link *);
     68 extern int ncp_IsUrgentPort(struct port_range *, u_short, u_short);
     69 extern void ncp_AddUrgentPort(struct port_range *, u_short);
     70 extern void ncp_RemoveUrgentPort(struct port_range *, u_short);
     71 extern void ncp_ClearUrgentPorts(struct port_range *);
     72 extern int ncp_Show(struct cmdargs const *);
     73 extern int ncp_LayersOpen(struct ncp *);
     74 extern int ncp_LayersUnfinished(struct ncp *);
     75 extern void ncp_Close(struct ncp *);
     76 extern void ncp2initial(struct ncp *);
     77 
     78 #define ncp_IsUrgentTcpPort(ncp, p1, p2) \
     79           ncp_IsUrgentPort(&(ncp)->cfg.urgent.tcp, p1, p2)
     80 #define ncp_IsUrgentUdpPort(ncp, p1, p2) \
     81           ncp_IsUrgentPort(&(ncp)->cfg.urgent.udp, p1, p2)
     82 #define ncp_AddUrgentTcpPort(ncp, p) \
     83           ncp_AddUrgentPort(&(ncp)->cfg.urgent.tcp, p)
     84 #define ncp_AddUrgentUdpPort(ncp, p) \
     85           ncp_AddUrgentPort(&(ncp)->cfg.urgent.udp, p)
     86 #define ncp_RemoveUrgentTcpPort(ncp, p) \
     87           ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.tcp, p)
     88 #define ncp_RemoveUrgentUdpPort(ncp, p) \
     89           ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.udp, p)
     90 #define ncp_ClearUrgentTcpPorts(ncp) \
     91           ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.tcp)
     92 #define ncp_ClearUrgentUdpPorts(ncp) \
     93           ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.udp)
     94 #define ncp_ClearUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 0;
     95 #define ncp_SetUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 1;
     96 
     97 #ifndef NOINET6
     98 #define isncp(proto) ((proto) == PROTO_IPCP || (proto) == PROTO_IPV6CP)
     99 #else
    100 #define isncp(proto) ((proto) == PROTO_IPCP)
    101 #endif
    102