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o Create struct mpserver as part of struct mp. mpserver creates a unix-domain socket based on the peers auth name and endpoint discriminator. If it already exists, ppp will ``pass the link'' over to the owner of the socket, joining it into the bundle of another ppp invocation, otherwise ppp waits for other invocations to pass it links through this socket. The final piece of code will be the code that flattens our datalink info and passes it down this channel (not yet implemented).
124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/*-
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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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* $Id: mp.h,v 1.1.2.7 1998/04/25 00:09:22 brian Exp $
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*/
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struct mbuf;
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struct physical;
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struct bundle;
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struct cmdargs;
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struct datalink;
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#define ENDDISC_NULL 0
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#define ENDDISC_LOCAL 1
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#define ENDDISC_IP 2
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#define ENDDISC_MAC 3
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#define ENDDISC_MAGIC 4
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#define ENDDISC_PSN 5
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#define MP_LINKSENT 0 /* We attached the link to another ppp */
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#define MP_UP 1 /* We've started MP */
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#define MP_ADDED 2 /* We've added the link to our MP */
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#define MP_FAILED 3 /* No go */
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struct enddisc {
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u_char class;
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char address[50];
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int len;
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};
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struct peerid {
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struct enddisc enddisc; /* Peers endpoint discriminator */
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char authname[50]; /* Peers name (authenticated) */
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};
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struct mpserver {
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struct descriptor desc;
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int fd; /* listen()ing here */
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struct sockaddr_un ifsun; /* On this socket */
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};
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struct mp {
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struct link link;
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unsigned active : 1;
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unsigned peer_is12bit : 1; /* 12/24bit seq nos */
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unsigned local_is12bit : 1;
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u_short peer_mrru;
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u_short local_mrru;
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struct peerid peer; /* Who are we talking to */
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struct mpserver server; /* Our ``sharing'' socket */
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struct {
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u_int32_t out; /* next outgoing seq */
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u_int32_t min_in; /* minimum received incoming seq */
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u_int32_t next_in; /* next incoming seq to process */
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} seq;
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struct {
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u_short mrru; /* Max Reconstructed Receive Unit */
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unsigned shortseq : 2; /* I want short Sequence Numbers */
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struct enddisc enddisc; /* endpoint discriminator */
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} cfg;
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struct mbuf *inbufs; /* Received fragments */
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struct fsm_parent fsmp; /* Our callback functions */
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struct bundle *bundle; /* Parent */
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};
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struct mp_link {
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u_int32_t seq; /* 12 or 24 bit incoming seq */
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int weight; /* bytes to send with each write */
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};
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struct mp_header {
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unsigned begin : 1;
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unsigned end : 1;
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u_int32_t seq;
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};
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#define mpserver2descriptor(s) (&(s)->desc)
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#define descriptor2mpserver(d) \
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((d)->type == MPSERVER_DESCRIPTOR ? (struct mpserver *)(d) : NULL)
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#define mpserver_IsOpen(s) ((s)->fd != -1)
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extern void peerid_Init(struct peerid *);
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extern int peerid_Equal(const struct peerid *, const struct peerid *);
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extern void mpserver_Init(struct mpserver *);
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extern int mpserver_Open(struct mpserver *, struct peerid *);
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extern void mpserver_Close(struct mpserver *);
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extern void mp_Init(struct mp *, struct bundle *);
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extern void mp_linkInit(struct mp_link *);
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extern int mp_Up(struct mp *, struct datalink *);
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extern void mp_Down(struct mp *);
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extern void mp_Input(struct mp *, struct mbuf *, struct physical *);
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extern int mp_FillQueues(struct bundle *);
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extern int mp_SetDatalinkWeight(struct cmdargs const *);
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extern int mp_ShowStatus(struct cmdargs const *);
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extern const char *mp_Enddisc(u_char, const char *, int);
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extern int mp_SetEnddisc(struct cmdargs const *);
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