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: stable/11/usr.sbin/ppp/ncp.h 330449 2018-03-05 07:26:05Z eadler $
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    } urgent;
46  } cfg;
47
48  int afq;			/* Next address family to queue */
49
50  struct sticky_route *route;	/* List of dynamic routes */
51
52  struct ipcp ipcp;		/* Our IPCP FSM */
53#ifndef NOINET6
54  struct ipv6cp ipv6cp;		/* Our IPV6CP FSM */
55#endif
56  struct mp mp;			/* Our MP */
57};
58
59extern void ncp_Init(struct ncp *, struct bundle *);
60extern void ncp_Destroy(struct ncp *);
61extern int ncp_fsmStart(struct ncp *, struct bundle *);
62extern void ncp_IfaceAddrAdded(struct ncp *, const struct iface_addr *);
63extern void ncp_IfaceAddrDeleted(struct ncp *, const struct iface_addr *);
64extern void ncp_SetLink(struct ncp *, struct link *);
65extern void ncp_Enqueue(struct ncp *, int, unsigned, char *, int);
66extern void ncp_DeleteQueues(struct ncp *);
67extern size_t ncp_QueueLen(struct ncp *);
68extern size_t ncp_FillPhysicalQueues(struct ncp *, struct bundle *);
69extern int ncp_PushPacket(struct ncp *, int *, struct link *);
70extern int ncp_IsUrgentPort(struct port_range *, u_short, u_short);
71extern void ncp_AddUrgentPort(struct port_range *, u_short);
72extern void ncp_RemoveUrgentPort(struct port_range *, u_short);
73extern void ncp_ClearUrgentPorts(struct port_range *);
74extern int ncp_Show(struct cmdargs const *);
75extern int ncp_LayersOpen(struct ncp *);
76extern int ncp_LayersUnfinished(struct ncp *);
77extern void ncp_Close(struct ncp *);
78extern void ncp2initial(struct ncp *);
79
80#define ncp_IsUrgentTcpPort(ncp, p1, p2) \
81          ncp_IsUrgentPort(&(ncp)->cfg.urgent.tcp, p1, p2)
82#define ncp_IsUrgentUdpPort(ncp, p1, p2) \
83          ncp_IsUrgentPort(&(ncp)->cfg.urgent.udp, p1, p2)
84#define ncp_AddUrgentTcpPort(ncp, p) \
85          ncp_AddUrgentPort(&(ncp)->cfg.urgent.tcp, p)
86#define ncp_AddUrgentUdpPort(ncp, p) \
87          ncp_AddUrgentPort(&(ncp)->cfg.urgent.udp, p)
88#define ncp_RemoveUrgentTcpPort(ncp, p) \
89          ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.tcp, p)
90#define ncp_RemoveUrgentUdpPort(ncp, p) \
91          ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.udp, p)
92#define ncp_ClearUrgentTcpPorts(ncp) \
93          ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.tcp)
94#define ncp_ClearUrgentUdpPorts(ncp) \
95          ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.udp)
96#define ncp_ClearUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 0;
97#define ncp_SetUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 1;
98
99#ifndef NOINET6
100#define isncp(proto) ((proto) == PROTO_IPCP || (proto) == PROTO_IPV6CP)
101#else
102#define isncp(proto) ((proto) == PROTO_IPCP)
103#endif
104