1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31#define PHASE_DEAD 0 /* Link is dead */ 32#define PHASE_ESTABLISH 1 /* Establishing link */ 33#define PHASE_AUTHENTICATE 2 /* Being authenticated */ 34#define PHASE_NETWORK 3 /* We're alive ! */ 35#define PHASE_TERMINATE 4 /* Terminating link */ 36 37/* cfg.opt bit settings */ 38#define OPT_FILTERDECAP 1 39#define OPT_FORCE_SCRIPTS 2 /* force chat scripts */ 40#define OPT_IDCHECK 3 41#define OPT_IFACEALIAS 4 42#ifndef NOINET6 43#define OPT_IPCP 5 44#define OPT_IPV6CP 6 45#endif 46#define OPT_KEEPSESSION 7 47#define OPT_LOOPBACK 8 48#define OPT_NAS_IP_ADDRESS 9 49#define OPT_NAS_IDENTIFIER 10 50#define OPT_PASSWDAUTH 11 51#define OPT_PROXY 12 52#define OPT_PROXYALL 13 53#define OPT_SROUTES 14 54#define OPT_TCPMSSFIXUP 15 55#define OPT_THROUGHPUT 16 56#define OPT_UTMP 17 57#define OPT_MAX 17 58 59#define MAX_ENDDISC_CLASS 5 60 61#define Enabled(b, o) ((b)->cfg.optmask & (1ull << (o))) 62#define opt_enable(b, o) ((b)->cfg.optmask |= (1ull << (o))) 63#define opt_disable(b, o) ((b)->cfg.optmask &= ~(1ull << (o))) 64 65/* AutoAdjust() values */ 66#define AUTO_UP 1 67#define AUTO_DOWN 2 68 69struct sockaddr_un; 70struct datalink; 71struct physical; 72struct link; 73struct server; 74struct prompt; 75struct iface; 76 77struct bundle { 78 struct fdescriptor desc; /* really all our datalinks */ 79 int unit; /* The device/interface unit number */ 80 81 struct { 82 char Name[20]; /* The /dev/XXXX name */ 83 int fd; /* The /dev/XXXX descriptor */ 84 unsigned header : 1; /* Family header sent & received ? */ 85 } dev; 86 87 u_long bandwidth; /* struct tuninfo speed */ 88 struct iface *iface; /* Interface information */ 89 90 int routing_seq; /* The current routing sequence number */ 91 u_int phase; /* Curent phase */ 92 93 struct { 94 int all; /* Union of all physical::type's */ 95 int open; /* Union of all open physical::type's */ 96 } phys_type; 97 98 unsigned CleaningUp : 1; /* Going to exit.... */ 99 unsigned NatEnabled : 1; /* Are we using libalias ? */ 100 101 struct fsm_parent fsm; /* Our callback functions */ 102 struct datalink *links; /* Our data links */ 103 104 time_t upat; /* When the link came up */ 105 106 struct { 107 struct { 108 unsigned timeout; /* NCP Idle timeout value */ 109 unsigned min_timeout; /* Don't idle out before this */ 110 } idle; 111 struct { 112 char name[AUTHLEN]; /* PAP/CHAP system name */ 113 char key[AUTHLEN]; /* PAP/CHAP key */ 114 } auth; 115 unsigned long long optmask; /* Uses OPT_ bits from above */ 116 char label[50]; /* last thing `load'ed */ 117 u_short ifqueue; /* Interface queue size */ 118 119 struct { 120 unsigned timeout; /* How long to leave the output queue choked */ 121 } choked; 122 } cfg; 123 124 struct ncp ncp; 125 126 struct { 127 struct filter in; /* incoming packet filter */ 128 struct filter out; /* outgoing packet filter */ 129 struct filter dial; /* dial-out packet filter */ 130 struct filter alive; /* keep-alive packet filter */ 131 } filter; 132 133 struct { 134 struct pppTimer timer; /* timeout after cfg.idle_timeout */ 135 time_t done; 136 } idle; 137 138#ifndef NORADIUS 139 struct { 140 struct pppTimer timer; 141 time_t done; 142 } session; 143#endif 144 145 struct { 146 int fd; /* write status here */ 147 } notify; 148 149 struct { 150 struct pppTimer timer; /* choked output queue timer */ 151 } choked; 152 153#ifndef NORADIUS 154 struct radius radius; /* Info retrieved from radius server */ 155 struct radacct radacct; 156#ifndef NOINET6 157 struct radacct radacct6; 158#endif 159#endif 160}; 161 162#define descriptor2bundle(d) \ 163 ((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL) 164 165extern struct bundle *bundle_Create(const char *, int, int); 166extern void bundle_Destroy(struct bundle *); 167extern const char *bundle_PhaseName(struct bundle *); 168#define bundle_Phase(b) ((b)->phase) 169extern void bundle_NewPhase(struct bundle *, u_int); 170extern void bundle_LinksRemoved(struct bundle *); 171extern void bundle_Close(struct bundle *, const char *, int); 172extern void bundle_Down(struct bundle *, int); 173extern void bundle_Open(struct bundle *, const char *, int, int); 174extern void bundle_LinkClosed(struct bundle *, struct datalink *); 175 176extern int bundle_ShowLinks(struct cmdargs const *); 177extern int bundle_ShowStatus(struct cmdargs const *); 178extern void bundle_StartIdleTimer(struct bundle *, unsigned secs); 179extern void bundle_SetIdleTimer(struct bundle *, unsigned, unsigned); 180extern void bundle_StopIdleTimer(struct bundle *); 181extern int bundle_IsDead(struct bundle *); 182extern struct datalink *bundle2datalink(struct bundle *, const char *); 183 184#ifndef NORADIUS 185extern void bundle_StartSessionTimer(struct bundle *, unsigned secs); 186extern void bundle_StopSessionTimer(struct bundle *); 187#endif 188 189extern void bundle_RegisterDescriptor(struct bundle *, struct fdescriptor *); 190extern void bundle_UnRegisterDescriptor(struct bundle *, struct fdescriptor *); 191 192extern void bundle_SetTtyCommandMode(struct bundle *, struct datalink *); 193 194extern int bundle_DatalinkClone(struct bundle *, struct datalink *, 195 const char *); 196extern void bundle_DatalinkRemove(struct bundle *, struct datalink *); 197extern void bundle_CleanDatalinks(struct bundle *); 198extern void bundle_SetLabel(struct bundle *, const char *); 199extern const char *bundle_GetLabel(struct bundle *); 200extern void bundle_SendDatalink(struct datalink *, int, struct sockaddr_un *); 201extern int bundle_LinkSize(void); 202extern void bundle_ReceiveDatalink(struct bundle *, int); 203extern int bundle_SetMode(struct bundle *, struct datalink *, int); 204extern int bundle_RenameDatalink(struct bundle *, struct datalink *, 205 const char *); 206extern void bundle_setsid(struct bundle *, int); 207extern void bundle_LockTun(struct bundle *); 208extern unsigned bundle_HighestState(struct bundle *); 209extern int bundle_Exception(struct bundle *, int); 210extern void bundle_AdjustFilters(struct bundle *, struct ncpaddr *, 211 struct ncpaddr *); 212extern void bundle_AdjustDNS(struct bundle *); 213extern void bundle_CalculateBandwidth(struct bundle *); 214extern void bundle_AutoAdjust(struct bundle *, int, int); 215extern int bundle_WantAutoloadTimer(struct bundle *); 216extern void bundle_ChangedPID(struct bundle *); 217extern void bundle_Notify(struct bundle *, char); 218extern int bundle_Uptime(struct bundle *); 219