1 /*- 2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/usr.sbin/ppp/mp.h,v 1.9.2.2 2002/09/01 02:12:29 brian Exp $ 27 * $DragonFly: src/usr.sbin/ppp/mp.h,v 1.2 2003/06/17 04:30:00 dillon Exp $ 28 */ 29 30 struct mbuf; 31 struct physical; 32 struct bundle; 33 struct cmdargs; 34 struct datalink; 35 36 #define ENDDISC_NULL 0 37 #define ENDDISC_LOCAL 1 38 #define ENDDISC_IP 2 39 #define ENDDISC_MAC 3 40 #define ENDDISC_MAGIC 4 41 #define ENDDISC_PSN 5 42 43 #define MP_LINKSENT 0 /* We attached the link to another ppp */ 44 #define MP_UP 1 /* We've started MP */ 45 #define MP_ADDED 2 /* We've added the link to our MP */ 46 #define MP_FAILED 3 /* No go */ 47 48 #define MPSERVER_CONNECTED 0 49 #define MPSERVER_LISTENING 1 50 #define MPSERVER_FAILED 2 51 52 struct enddisc { 53 u_char class; 54 char address[50]; 55 int len; 56 }; 57 58 struct peerid { 59 struct enddisc enddisc; /* Peers endpoint discriminator */ 60 char authname[AUTHLEN]; /* Peers name (authenticated) */ 61 }; 62 63 struct mpserver { 64 struct fdescriptor desc; 65 int fd; /* listen()ing or connect()ing here */ 66 struct sockaddr_un socket; /* On this socket */ 67 68 struct { 69 struct datalink *dl; /* Send this datalink */ 70 } send; /* (in UpdateSet()) */ 71 }; 72 73 struct mp { 74 struct link link; 75 76 unsigned active : 1; 77 unsigned peer_is12bit : 1; /* 12/24bit seq nos */ 78 unsigned local_is12bit : 1; 79 u_short peer_mrru; 80 u_short local_mrru; 81 82 struct peerid peer; /* Who are we talking to */ 83 struct mpserver server; /* Our ``sharing'' socket */ 84 85 struct { 86 u_int32_t seq; /* next outgoing seq */ 87 int link; /* Next link to send on */ 88 int af; /* Next address family to send */ 89 } out; 90 91 struct { 92 u_int32_t min_in; /* minimum received incoming seq */ 93 u_int32_t next_in; /* next incoming seq to process */ 94 } seq; 95 96 struct { 97 u_short mrru; /* Max Reconstructed Receive Unit */ 98 unsigned shortseq : 2; /* I want short Sequence Numbers */ 99 unsigned negenddisc : 2; /* I want an endpoint discriminator */ 100 struct enddisc enddisc; /* endpoint discriminator */ 101 struct { 102 int min; /* Lowest percent of bundle->bandwidth */ 103 int max; /* Highest percent of bundle->bandwidth out */ 104 int period; /* link->throughput sample period */ 105 } autoload; 106 } cfg; 107 108 struct mbuf *inbufs; /* Received fragments */ 109 struct fsm_parent fsmp; /* Our callback functions */ 110 struct bundle *bundle; /* Parent */ 111 }; 112 113 struct mp_link { 114 u_int32_t seq; /* 12 or 24 bit incoming seq */ 115 unsigned bandwidth; /* Our link bandwidth (or zero) */ 116 }; 117 118 struct mp_header { 119 unsigned begin : 1; 120 unsigned end : 1; 121 u_int32_t seq; 122 }; 123 124 #define descriptor2mpserver(d) \ 125 ((d)->type == MPSERVER_DESCRIPTOR ? (struct mpserver *)(d) : NULL) 126 #define mpserver_IsOpen(s) ((s)->fd != -1) 127 128 extern void peerid_Init(struct peerid *); 129 extern int peerid_Equal(const struct peerid *, const struct peerid *); 130 extern void mpserver_Init(struct mpserver *); 131 extern int mpserver_Open(struct mpserver *, struct peerid *); 132 extern void mpserver_Close(struct mpserver *); 133 extern void mp_Init(struct mp *, struct bundle *); 134 extern void mp_linkInit(struct mp_link *); 135 extern int mp_Up(struct mp *, struct datalink *); 136 extern void mp_Down(struct mp *); 137 extern struct mbuf *mp_Input(struct bundle *, struct link *, struct mbuf *); 138 extern int mp_FillPhysicalQueues(struct bundle *); 139 extern int mp_SetDatalinkBandwidth(struct cmdargs const *); 140 extern int mp_ShowStatus(struct cmdargs const *); 141 extern const char *mp_Enddisc(u_char, const char *, size_t); 142 extern int mp_SetEnddisc(struct cmdargs const *); 143 extern void mp_LinkLost(struct mp *, struct datalink *); 144 extern void mp_RestartAutoloadTimer(struct mp *); 145 extern void mp_CheckAutoloadTimer(struct mp *); 146 extern void mp_StopAutoloadTimer(struct mp *); 147 extern size_t mp_QueueLen(struct mp *); 148