1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31struct port_range {
32  unsigned nports;		/* How many ports */
33  unsigned maxports;		/* How many allocated (malloc) ports */
34  u_short *port;		/* The actual ports */
35};
36
37struct ncp {
38  struct {
39    u_long sendpipe;			/* route sendpipe size */
40    u_long recvpipe;			/* route recvpipe size */
41
42    struct {
43      struct port_range tcp, udp;	/* The range of urgent ports */
44      unsigned tos : 1;			/* Urgent IPTOS_LOWDELAY packets ? */
45      int len;				/* The size below which traffic is prioritised */
46    } urgent;
47  } cfg;
48
49  int afq;			/* Next address family to queue */
50
51  struct sticky_route *route;	/* List of dynamic routes */
52
53  struct ipcp ipcp;		/* Our IPCP FSM */
54#ifndef NOINET6
55  struct ipv6cp ipv6cp;		/* Our IPV6CP FSM */
56#endif
57  struct mp mp;			/* Our MP */
58};
59
60extern void ncp_Init(struct ncp *, struct bundle *);
61extern void ncp_Destroy(struct ncp *);
62extern int ncp_fsmStart(struct ncp *, struct bundle *);
63extern void ncp_IfaceAddrAdded(struct ncp *, const struct iface_addr *);
64extern void ncp_IfaceAddrDeleted(struct ncp *, const struct iface_addr *);
65extern void ncp_SetLink(struct ncp *, struct link *);
66extern void ncp_Enqueue(struct ncp *, int, unsigned, char *, int);
67extern void ncp_DeleteQueues(struct ncp *);
68extern size_t ncp_QueueLen(struct ncp *);
69extern size_t ncp_FillPhysicalQueues(struct ncp *, struct bundle *);
70extern int ncp_PushPacket(struct ncp *, int *, struct link *);
71extern int ncp_IsUrgentPort(struct port_range *, u_short, u_short);
72extern int ncp_IsUrgentTcpLen(struct ncp *, int);
73extern void ncp_SetUrgentTcpLen(struct ncp *, int);
74extern void ncp_AddUrgentPort(struct port_range *, u_short);
75extern void ncp_RemoveUrgentPort(struct port_range *, u_short);
76extern void ncp_ClearUrgentPorts(struct port_range *);
77extern int ncp_Show(struct cmdargs const *);
78extern int ncp_LayersOpen(struct ncp *);
79extern int ncp_LayersUnfinished(struct ncp *);
80extern void ncp_Close(struct ncp *);
81extern void ncp2initial(struct ncp *);
82
83#define ncp_IsUrgentTcpPort(ncp, p1, p2) \
84          ncp_IsUrgentPort(&(ncp)->cfg.urgent.tcp, p1, p2)
85#define ncp_IsUrgentUdpPort(ncp, p1, p2) \
86          ncp_IsUrgentPort(&(ncp)->cfg.urgent.udp, p1, p2)
87#define ncp_AddUrgentTcpPort(ncp, p) \
88          ncp_AddUrgentPort(&(ncp)->cfg.urgent.tcp, p)
89#define ncp_AddUrgentUdpPort(ncp, p) \
90          ncp_AddUrgentPort(&(ncp)->cfg.urgent.udp, p)
91#define ncp_RemoveUrgentTcpPort(ncp, p) \
92          ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.tcp, p)
93#define ncp_RemoveUrgentUdpPort(ncp, p) \
94          ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.udp, p)
95#define ncp_ClearUrgentTcpPorts(ncp) \
96          ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.tcp)
97#define ncp_ClearUrgentUdpPorts(ncp) \
98          ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.udp)
99#define ncp_ClearUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 0;
100#define ncp_SetUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 1;
101
102#ifndef NOINET6
103#define isncp(proto) ((proto) == PROTO_IPCP || (proto) == PROTO_IPV6CP)
104#else
105#define isncp(proto) ((proto) == PROTO_IPCP)
106#endif
107