2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
35 #define ENDDISC_NULL 0
36 #define ENDDISC_LOCAL 1
39 #define ENDDISC_MAGIC 4
42 #define MP_LINKSENT 0 /* We attached the link to another ppp */
43 #define MP_UP 1 /* We've started MP */
44 #define MP_ADDED 2 /* We've added the link to our MP */
45 #define MP_FAILED 3 /* No go */
47 #define MPSERVER_CONNECTED 0
48 #define MPSERVER_LISTENING 1
49 #define MPSERVER_FAILED 2
58 struct enddisc enddisc; /* Peers endpoint discriminator */
59 char authname[AUTHLEN]; /* Peers name (authenticated) */
63 struct fdescriptor desc;
64 int fd; /* listen()ing or connect()ing here */
65 struct sockaddr_un socket; /* On this socket */
68 struct datalink *dl; /* Send this datalink */
69 } send; /* (in UpdateSet()) */
76 unsigned peer_is12bit : 1; /* 12/24bit seq nos */
77 unsigned local_is12bit : 1;
81 struct peerid peer; /* Who are we talking to */
82 struct mpserver server; /* Our ``sharing'' socket */
85 u_int32_t seq; /* next outgoing seq */
86 int link; /* Next link to send on */
87 int af; /* Next address family to send */
91 u_int32_t min_in; /* minimum received incoming seq */
92 u_int32_t next_in; /* next incoming seq to process */
96 u_short mrru; /* Max Reconstructed Receive Unit */
97 unsigned shortseq : 2; /* I want short Sequence Numbers */
98 unsigned negenddisc : 2; /* I want an endpoint discriminator */
99 struct enddisc enddisc; /* endpoint discriminator */
101 int min; /* Lowest percent of bundle->bandwidth */
102 int max; /* Highest percent of bundle->bandwidth out */
103 int period; /* link->throughput sample period */
107 struct mbuf *inbufs; /* Received fragments */
108 struct fsm_parent fsmp; /* Our callback functions */
109 struct bundle *bundle; /* Parent */
113 u_int32_t seq; /* 12 or 24 bit incoming seq */
114 unsigned bandwidth; /* Our link bandwidth (or zero) */
123 #define descriptor2mpserver(d) \
124 ((d)->type == MPSERVER_DESCRIPTOR ? (struct mpserver *)(d) : NULL)
125 #define mpserver_IsOpen(s) ((s)->fd != -1)
127 extern void peerid_Init(struct peerid *);
128 extern int peerid_Equal(const struct peerid *, const struct peerid *);
129 extern void mpserver_Init(struct mpserver *);
130 extern int mpserver_Open(struct mpserver *, struct peerid *);
131 extern void mpserver_Close(struct mpserver *);
132 extern void mp_Init(struct mp *, struct bundle *);
133 extern void mp_linkInit(struct mp_link *);
134 extern int mp_Up(struct mp *, struct datalink *);
135 extern void mp_Down(struct mp *);
136 extern struct mbuf *mp_Input(struct bundle *, struct link *, struct mbuf *);
137 extern int mp_FillPhysicalQueues(struct bundle *);
138 extern int mp_SetDatalinkBandwidth(struct cmdargs const *);
139 extern int mp_ShowStatus(struct cmdargs const *);
140 extern const char *mp_Enddisc(u_char, const char *, size_t);
141 extern int mp_SetEnddisc(struct cmdargs const *);
142 extern void mp_LinkLost(struct mp *, struct datalink *);
143 extern void mp_RestartAutoloadTimer(struct mp *);
144 extern void mp_CheckAutoloadTimer(struct mp *);
145 extern void mp_StopAutoloadTimer(struct mp *);
146 extern size_t mp_QueueLen(struct mp *);