diff options
Diffstat (limited to 'usr.sbin/ppp/mp.h')
| -rw-r--r-- | usr.sbin/ppp/mp.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/usr.sbin/ppp/mp.h b/usr.sbin/ppp/mp.h new file mode 100644 index 000000000000..0625b8cdae77 --- /dev/null +++ b/usr.sbin/ppp/mp.h @@ -0,0 +1,146 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 1998 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 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 *, size_t); +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 *); |