/*- * Copyright (c) 1998 Brian Somers * 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. * * $OpenBSD: mp.h,v 1.9 2001/08/19 23:22:18 brian Exp $ */ struct mbuf; struct physical; struct bundle; struct cmdargs; struct datalink; #define ENDDISC_NULL 0 #define ENDDISC_LOCAL 1 #define ENDDISC_IP 2 #define ENDDISC_MAC 3 #define ENDDISC_MAGIC 4 #define ENDDISC_PSN 5 #define MP_LINKSENT 0 /* We attached the link to another ppp */ #define MP_UP 1 /* We've started MP */ #define MP_ADDED 2 /* We've added the link to our MP */ #define MP_FAILED 3 /* No go */ #define MPSERVER_CONNECTED 0 #define MPSERVER_LISTENING 1 #define MPSERVER_FAILED 2 struct enddisc { u_char class; char address[50]; int len; }; struct peerid { struct enddisc enddisc; /* Peers endpoint discriminator */ char authname[AUTHLEN]; /* Peers name (authenticated) */ }; struct mpserver { struct fdescriptor desc; int fd; /* listen()ing or connect()ing here */ struct sockaddr_un socket; /* On this socket */ struct { struct datalink *dl; /* Send this datalink */ } send; /* (in UpdateSet()) */ }; struct mp { struct link link; unsigned active : 1; unsigned peer_is12bit : 1; /* 12/24bit seq nos */ unsigned local_is12bit : 1; u_short peer_mrru; u_short local_mrru; struct peerid peer; /* Who are we talking to */ struct mpserver server; /* Our ``sharing'' socket */ struct { u_int32_t seq; /* next outgoing seq */ int link; /* Next link to send on */ int af; /* Next address family to send */ } out; struct { u_int32_t min_in; /* minimum received incoming seq */ u_int32_t next_in; /* next incoming seq to process */ } seq; struct { u_short mrru; /* Max Reconstructed Receive Unit */ unsigned shortseq : 2; /* I want short Sequence Numbers */ unsigned negenddisc : 2; /* I want an endpoint discriminator */ struct enddisc enddisc; /* endpoint discriminator */ struct { int min; /* Lowest percent of bundle->bandwidth */ int max; /* Highest percent of bundle->bandwidth out */ int period; /* link->throughput sample period */ } autoload; } cfg; struct mbuf *inbufs; /* Received fragments */ struct fsm_parent fsmp; /* Our callback functions */ struct bundle *bundle; /* Parent */ }; struct mp_link { u_int32_t seq; /* 12 or 24 bit incoming seq */ unsigned bandwidth; /* Our link bandwidth (or zero) */ }; struct mp_header { unsigned begin : 1; unsigned end : 1; u_int32_t seq; }; #define descriptor2mpserver(d) \ ((d)->type == MPSERVER_DESCRIPTOR ? (struct mpserver *)(d) : NULL) #define mpserver_IsOpen(s) ((s)->fd != -1) extern void peerid_Init(struct peerid *); extern int peerid_Equal(const struct peerid *, const struct peerid *); extern void mpserver_Init(struct mpserver *); extern int mpserver_Open(struct mpserver *, struct peerid *); extern void mpserver_Close(struct mpserver *); extern void mp_Init(struct mp *, struct bundle *); extern void mp_linkInit(struct mp_link *); extern int mp_Up(struct mp *, struct datalink *); extern void mp_Down(struct mp *); extern struct mbuf *mp_Input(struct bundle *, struct link *, struct mbuf *); extern int mp_FillPhysicalQueues(struct bundle *); extern int mp_SetDatalinkBandwidth(struct cmdargs const *); extern int mp_ShowStatus(struct cmdargs const *); extern const char *mp_Enddisc(u_char, const char *, int); extern int mp_SetEnddisc(struct cmdargs const *); extern void mp_LinkLost(struct mp *, struct datalink *); extern void mp_RestartAutoloadTimer(struct mp *); extern void mp_CheckAutoloadTimer(struct mp *); extern void mp_StopAutoloadTimer(struct mp *); extern size_t mp_QueueLen(struct mp *);