1/*-
2 * Copyright (c) 2001 Brian Somers <brian@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 * $FreeBSD$
27 */
28
29struct 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
35struct 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
57extern void ncp_Init(struct ncp *, struct bundle *);
58extern void ncp_Destroy(struct ncp *);
59extern int ncp_fsmStart(struct ncp *, struct bundle *);
60extern void ncp_IfaceAddrAdded(struct ncp *, const struct iface_addr *);
61extern void ncp_IfaceAddrDeleted(struct ncp *, const struct iface_addr *);
62extern void ncp_SetLink(struct ncp *, struct link *);
63extern void ncp_Enqueue(struct ncp *, int, unsigned, char *, int);
64extern void ncp_DeleteQueues(struct ncp *);
65extern size_t ncp_QueueLen(struct ncp *);
66extern size_t ncp_FillPhysicalQueues(struct ncp *, struct bundle *);
67extern int ncp_PushPacket(struct ncp *, int *, struct link *);
68extern int ncp_IsUrgentPort(struct port_range *, u_short, u_short);
69extern void ncp_AddUrgentPort(struct port_range *, u_short);
70extern void ncp_RemoveUrgentPort(struct port_range *, u_short);
71extern void ncp_ClearUrgentPorts(struct port_range *);
72extern int ncp_Show(struct cmdargs const *);
73extern int ncp_LayersOpen(struct ncp *);
74extern int ncp_LayersUnfinished(struct ncp *);
75extern void ncp_Close(struct ncp *);
76extern 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