/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
struct port_range {
unsigned nports; /* How many ports */
unsigned maxports; /* How many allocated (malloc) ports */
u_short *port; /* The actual ports */
};
struct ncp {
struct {
u_long sendpipe; /* route sendpipe size */
u_long recvpipe; /* route recvpipe size */
struct {
struct port_range tcp, udp; /* The range of urgent ports */
unsigned tos : 1; /* Urgent IPTOS_LOWDELAY packets ? */
int len; /* The size below which traffic is prioritised */
} urgent;
} cfg;
int afq; /* Next address family to queue */
struct sticky_route *route; /* List of dynamic routes */
struct ipcp ipcp; /* Our IPCP FSM */
#ifndef NOINET6
struct ipv6cp ipv6cp; /* Our IPV6CP FSM */
#endif
struct mp mp; /* Our MP */
};
extern void ncp_Init(struct ncp *, struct bundle *);
extern void ncp_Destroy(struct ncp *);
extern int ncp_fsmStart(struct ncp *, struct bundle *);
extern void ncp_IfaceAddrAdded(struct ncp *, const struct iface_addr *);
extern void ncp_IfaceAddrDeleted(struct ncp *, const struct iface_addr *);
extern void ncp_SetLink(struct ncp *, struct link *);
extern void ncp_Enqueue(struct ncp *, int, unsigned, char *, int);
extern void ncp_DeleteQueues(struct ncp *);
extern size_t ncp_QueueLen(struct ncp *);
extern size_t ncp_FillPhysicalQueues(struct ncp *, struct bundle *);
extern int ncp_PushPacket(struct ncp *, int *, struct link *);
extern int ncp_IsUrgentPort(struct port_range *, u_short, u_short);
extern int ncp_IsUrgentTcpLen(struct ncp *, int);
extern void ncp_SetUrgentTcpLen(struct ncp *, int);
extern void ncp_AddUrgentPort(struct port_range *, u_short);
extern void ncp_RemoveUrgentPort(struct port_range *, u_short);
extern void ncp_ClearUrgentPorts(struct port_range *);
extern int ncp_Show(struct cmdargs const *);
extern int ncp_LayersOpen(struct ncp *);
extern int ncp_LayersUnfinished(struct ncp *);
extern void ncp_Close(struct ncp *);
extern void ncp2initial(struct ncp *);
#define ncp_IsUrgentTcpPort(ncp, p1, p2) \
ncp_IsUrgentPort(&(ncp)->cfg.urgent.tcp, p1, p2)
#define ncp_IsUrgentUdpPort(ncp, p1, p2) \
ncp_IsUrgentPort(&(ncp)->cfg.urgent.udp, p1, p2)
#define ncp_AddUrgentTcpPort(ncp, p) \
ncp_AddUrgentPort(&(ncp)->cfg.urgent.tcp, p)
#define ncp_AddUrgentUdpPort(ncp, p) \
ncp_AddUrgentPort(&(ncp)->cfg.urgent.udp, p)
#define ncp_RemoveUrgentTcpPort(ncp, p) \
ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.tcp, p)
#define ncp_RemoveUrgentUdpPort(ncp, p) \
ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.udp, p)
#define ncp_ClearUrgentTcpPorts(ncp) \
ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.tcp)
#define ncp_ClearUrgentUdpPorts(ncp) \
ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.udp)
#define ncp_ClearUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 0
#define ncp_SetUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 1
#ifndef NOINET6
#define isncp(proto) ((proto) == PROTO_IPCP || (proto) == PROTO_IPV6CP)
#else
#define isncp(proto) ((proto) == PROTO_IPCP)
#endif
plain