f80b39d182
This allows preferring small (e.g. ACK) packets, in upload heavy environments. It was already possible to mark packets urgent based on destination port. This option piggy backs on that feature.
107 lines
4.4 KiB
C
107 lines
4.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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struct port_range {
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unsigned nports; /* How many ports */
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unsigned maxports; /* How many allocated (malloc) ports */
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u_short *port; /* The actual ports */
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};
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struct ncp {
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struct {
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u_long sendpipe; /* route sendpipe size */
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u_long recvpipe; /* route recvpipe size */
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struct {
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struct port_range tcp, udp; /* The range of urgent ports */
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unsigned tos : 1; /* Urgent IPTOS_LOWDELAY packets ? */
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int len; /* The size below which traffic is prioritised */
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} urgent;
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} cfg;
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int afq; /* Next address family to queue */
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struct sticky_route *route; /* List of dynamic routes */
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struct ipcp ipcp; /* Our IPCP FSM */
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#ifndef NOINET6
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struct ipv6cp ipv6cp; /* Our IPV6CP FSM */
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#endif
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struct mp mp; /* Our MP */
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};
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extern void ncp_Init(struct ncp *, struct bundle *);
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extern void ncp_Destroy(struct ncp *);
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extern int ncp_fsmStart(struct ncp *, struct bundle *);
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extern void ncp_IfaceAddrAdded(struct ncp *, const struct iface_addr *);
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extern void ncp_IfaceAddrDeleted(struct ncp *, const struct iface_addr *);
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extern void ncp_SetLink(struct ncp *, struct link *);
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extern void ncp_Enqueue(struct ncp *, int, unsigned, char *, int);
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extern void ncp_DeleteQueues(struct ncp *);
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extern size_t ncp_QueueLen(struct ncp *);
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extern size_t ncp_FillPhysicalQueues(struct ncp *, struct bundle *);
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extern int ncp_PushPacket(struct ncp *, int *, struct link *);
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extern int ncp_IsUrgentPort(struct port_range *, u_short, u_short);
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extern int ncp_IsUrgentTcpLen(struct ncp *, int);
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extern void ncp_SetUrgentTcpLen(struct ncp *, int);
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extern void ncp_AddUrgentPort(struct port_range *, u_short);
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extern void ncp_RemoveUrgentPort(struct port_range *, u_short);
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extern void ncp_ClearUrgentPorts(struct port_range *);
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extern int ncp_Show(struct cmdargs const *);
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extern int ncp_LayersOpen(struct ncp *);
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extern int ncp_LayersUnfinished(struct ncp *);
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extern void ncp_Close(struct ncp *);
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extern void ncp2initial(struct ncp *);
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#define ncp_IsUrgentTcpPort(ncp, p1, p2) \
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ncp_IsUrgentPort(&(ncp)->cfg.urgent.tcp, p1, p2)
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#define ncp_IsUrgentUdpPort(ncp, p1, p2) \
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ncp_IsUrgentPort(&(ncp)->cfg.urgent.udp, p1, p2)
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#define ncp_AddUrgentTcpPort(ncp, p) \
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ncp_AddUrgentPort(&(ncp)->cfg.urgent.tcp, p)
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#define ncp_AddUrgentUdpPort(ncp, p) \
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ncp_AddUrgentPort(&(ncp)->cfg.urgent.udp, p)
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#define ncp_RemoveUrgentTcpPort(ncp, p) \
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ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.tcp, p)
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#define ncp_RemoveUrgentUdpPort(ncp, p) \
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ncp_RemoveUrgentPort(&(ncp)->cfg.urgent.udp, p)
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#define ncp_ClearUrgentTcpPorts(ncp) \
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ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.tcp)
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#define ncp_ClearUrgentUdpPorts(ncp) \
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ncp_ClearUrgentPorts(&(ncp)->cfg.urgent.udp)
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#define ncp_ClearUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 0;
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#define ncp_SetUrgentTOS(ncp) (ncp)->cfg.urgent.tos = 1;
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#ifndef NOINET6
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#define isncp(proto) ((proto) == PROTO_IPCP || (proto) == PROTO_IPV6CP)
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#else
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#define isncp(proto) ((proto) == PROTO_IPCP)
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#endif
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