bundle.h revision 47689 
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 *	$Id: bundle.h,v 1.22 1999/05/31 23:57:33 brian Exp $
27 */
28
29#define	PHASE_DEAD		0	/* Link is dead */
30#define	PHASE_ESTABLISH		1	/* Establishing link */
31#define	PHASE_AUTHENTICATE	2	/* Being authenticated */
32#define	PHASE_NETWORK		3	/* We're alive ! */
33#define	PHASE_TERMINATE		4	/* Terminating link */
34
35/* cfg.opt bit settings */
36#define OPT_IDCHECK	0x0001
37#define OPT_IFACEALIAS	0x0002
38#define OPT_KEEPSESSION	0x0004
39#define OPT_LOOPBACK	0x0008
40#define OPT_PASSWDAUTH	0x0010
41#define OPT_PROXY	0x0020
42#define OPT_PROXYALL	0x0040
43#define OPT_SROUTES	0x0080
44#define OPT_THROUGHPUT	0x0100
45#define OPT_UTMP	0x0200
46
47#define MAX_ENDDISC_CLASS 5
48
49#define Enabled(b, o) ((b)->cfg.opt & (o))
50
51struct sockaddr_un;
52struct datalink;
53struct physical;
54struct link;
55struct server;
56struct prompt;
57struct iface;
58
59struct bundle {
60  struct descriptor desc;     /* really all our datalinks */
61  int unit;                   /* The device/interface unit number */
62  const char **argv;          /* From main() */
63  const char *argv0;          /* Original */
64  const char *argv1;          /* Original */
65
66  struct {
67    char Name[20];            /* The /dev/XXXX name */
68    int fd;                   /* The /dev/XXXX descriptor */
69  } dev;
70
71  u_long ifSpeed;             /* struct tuninfo speed */
72  struct iface *iface;        /* Interface information */
73
74  int routing_seq;            /* The current routing sequence number */
75  u_int phase;                /* Curent phase */
76
77  struct {
78    int all;                  /* Union of all physical::type's */
79    int open;                 /* Union of all open physical::type's */
80  } phys_type;
81
82  unsigned CleaningUp : 1;    /* Going to exit.... */
83  unsigned AliasEnabled : 1;  /* Are we using libalias ? */
84
85  struct fsm_parent fsm;      /* Our callback functions */
86  struct datalink *links;     /* Our data links */
87
88  struct {
89    int idle_timeout;         /* NCP Idle timeout value */
90    struct {
91      char name[AUTHLEN];     /* PAP/CHAP system name */
92      char key[AUTHLEN];      /* PAP/CHAP key */
93    } auth;
94    unsigned opt;             /* Uses OPT_ bits from above */
95    char label[50];           /* last thing `load'ed */
96    u_short mtu;              /* Interface mtu */
97
98    struct {                  /* We need/don't need another link when  */
99      struct {                /* more/less than                        */
100        int packets;          /* this number of packets are queued for */
101        int timeout;          /* this number of seconds                */
102      } max, min;
103    } autoload;
104
105    struct {
106      int timeout;            /* How long to leave the output queue choked */
107    } choked;
108  } cfg;
109
110  struct {
111    struct ipcp ipcp;         /* Our IPCP FSM */
112    struct mp mp;             /* Our MP */
113  } ncp;
114
115  struct {
116    struct filter in;         /* incoming packet filter */
117    struct filter out;        /* outgoing packet filter */
118    struct filter dial;       /* dial-out packet filter */
119    struct filter alive;      /* keep-alive packet filter */
120  } filter;
121
122  struct {
123    struct pppTimer timer;    /* timeout after cfg.idle_timeout */
124    time_t done;
125  } idle;
126
127  struct {
128    int fd;                   /* write status here */
129  } notify;
130
131  struct {
132    struct pppTimer timer;
133    time_t done;
134    unsigned running : 1;
135    unsigned comingup : 1;
136  } autoload;
137
138  struct {
139    struct pppTimer timer;    /* choked output queue timer */
140  } choked;
141
142#ifndef NORADIUS
143  struct radius radius;       /* Info retrieved from radius server */
144#endif
145};
146
147#define descriptor2bundle(d) \
148  ((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL)
149
150extern struct bundle *bundle_Create(const char *, int, const char **);
151extern void bundle_Destroy(struct bundle *);
152extern const char *bundle_PhaseName(struct bundle *);
153#define bundle_Phase(b) ((b)->phase)
154extern void bundle_NewPhase(struct bundle *, u_int);
155extern void bundle_LinksRemoved(struct bundle *);
156extern int  bundle_LinkIsUp(const struct bundle *);
157extern int bundle_SetRoute(struct bundle *, int, struct in_addr,
158                           struct in_addr, struct in_addr, int, int);
159extern void bundle_Close(struct bundle *, const char *, int);
160extern void bundle_Down(struct bundle *, int);
161extern void bundle_Open(struct bundle *, const char *, int, int);
162extern void bundle_LinkClosed(struct bundle *, struct datalink *);
163
164extern int bundle_FillQueues(struct bundle *);
165extern int bundle_ShowLinks(struct cmdargs const *);
166extern int bundle_ShowStatus(struct cmdargs const *);
167extern void bundle_StartIdleTimer(struct bundle *);
168extern void bundle_SetIdleTimer(struct bundle *, int);
169extern void bundle_StopIdleTimer(struct bundle *);
170extern int bundle_IsDead(struct bundle *);
171extern struct datalink *bundle2datalink(struct bundle *, const char *);
172
173extern void bundle_RegisterDescriptor(struct bundle *, struct descriptor *);
174extern void bundle_UnRegisterDescriptor(struct bundle *, struct descriptor *);
175
176extern void bundle_SetTtyCommandMode(struct bundle *, struct datalink *);
177
178extern int bundle_DatalinkClone(struct bundle *, struct datalink *,
179                                const char *);
180extern void bundle_DatalinkRemove(struct bundle *, struct datalink *);
181extern void bundle_CleanDatalinks(struct bundle *);
182extern void bundle_SetLabel(struct bundle *, const char *);
183extern const char *bundle_GetLabel(struct bundle *);
184extern void bundle_SendDatalink(struct datalink *, int, struct sockaddr_un *);
185extern void bundle_ReceiveDatalink(struct bundle *, int, struct sockaddr_un *);
186extern int bundle_SetMode(struct bundle *, struct datalink *, int);
187extern int bundle_RenameDatalink(struct bundle *, struct datalink *,
188                                 const char *);
189extern void bundle_setsid(struct bundle *, int);
190extern void bundle_LockTun(struct bundle *);
191extern int bundle_HighestState(struct bundle *);
192extern int bundle_Exception(struct bundle *, int);
193extern void bundle_AdjustFilters(struct bundle *, struct in_addr *,
194                                 struct in_addr *);
195