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82 lines
3.4 KiB
C
82 lines
3.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 1998 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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*/
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#define PHYSICAL_LINK 1
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#define LOGICAL_LINK 2
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#define NPROTOSTAT 13
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struct bundle;
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struct prompt;
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struct cmdargs;
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struct link {
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int type; /* _LINK type */
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const char *name; /* Points to datalink::name */
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int len; /* full size of parent struct */
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struct {
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unsigned gather : 1; /* Gather statistics ourself ? */
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struct pppThroughput total; /* Link throughput statistics */
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struct pppThroughput *parent; /* MP link throughput statistics */
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} stats;
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struct mqueue Queue[2]; /* Our output queue of mbufs */
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u_long proto_in[NPROTOSTAT]; /* outgoing protocol stats */
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u_long proto_out[NPROTOSTAT]; /* incoming protocol stats */
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struct lcp lcp; /* Our line control FSM */
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struct ccp ccp; /* Our compression FSM */
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struct layer const *layer[LAYER_MAX]; /* i/o layers */
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int nlayers;
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};
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#define LINK_QUEUES(link) (sizeof (link)->Queue / sizeof (link)->Queue[0])
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#define LINK_HIGHQ(link) ((link)->Queue + LINK_QUEUES(link) - 1)
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extern void link_SequenceQueue(struct link *);
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extern void link_DeleteQueue(struct link *);
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extern size_t link_QueueLen(struct link *);
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extern size_t link_QueueBytes(struct link *);
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extern void link_PendingLowPriorityData(struct link *, size_t *, size_t *);
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extern struct mbuf *link_Dequeue(struct link *);
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extern void link_PushPacket(struct link *, struct mbuf *, struct bundle *,
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int, u_short);
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extern void link_PullPacket(struct link *, char *, size_t, struct bundle *);
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extern int link_Stack(struct link *, struct layer *);
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extern void link_EmptyStack(struct link *);
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#define PROTO_IN 1 /* third arg to link_ProtocolRecord */
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#define PROTO_OUT 2
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extern void link_ProtocolRecord(struct link *, u_short, int);
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extern void link_ReportProtocolStatus(struct link *, struct prompt *);
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extern int link_ShowLayers(struct cmdargs const *);
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