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 * $FreeBSD$ 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_FILTERDECAP 0x0001 37 #define OPT_FORCE_SCRIPTS 0x0002 /* force chat scripts */ 38 #define OPT_IDCHECK 0x0004 39 #define OPT_IFACEALIAS 0x0008 40 #ifndef NOINET6 41 #define OPT_IPCP 0x0010 42 #define OPT_IPV6CP 0x0020 43 #endif 44 #define OPT_KEEPSESSION 0x0040 45 #define OPT_LOOPBACK 0x0080 46 #define OPT_PASSWDAUTH 0x0100 47 #define OPT_PROXY 0x0200 48 #define OPT_PROXYALL 0x0400 49 #define OPT_SROUTES 0x0800 50 #define OPT_TCPMSSFIXUP 0x1000 51 #define OPT_THROUGHPUT 0x2000 52 #define OPT_UTMP 0x4000 53 54 #define MAX_ENDDISC_CLASS 5 55 56 #define Enabled(b, o) ((b)->cfg.opt & (o)) 57 58 /* AutoAdjust() values */ 59 #define AUTO_UP 1 60 #define AUTO_DOWN 2 61 62 struct sockaddr_un; 63 struct datalink; 64 struct physical; 65 struct link; 66 struct server; 67 struct prompt; 68 struct iface; 69 70 struct bundle { 71 struct fdescriptor desc; /* really all our datalinks */ 72 int unit; /* The device/interface unit number */ 73 74 struct { 75 char Name[20]; /* The /dev/XXXX name */ 76 int fd; /* The /dev/XXXX descriptor */ 77 unsigned header : 1; /* Family header sent & received ? */ 78 } dev; 79 80 u_long bandwidth; /* struct tuninfo speed */ 81 struct iface *iface; /* Interface information */ 82 83 int routing_seq; /* The current routing sequence number */ 84 u_int phase; /* Curent phase */ 85 86 struct { 87 int all; /* Union of all physical::type's */ 88 int open; /* Union of all open physical::type's */ 89 } phys_type; 90 91 unsigned CleaningUp : 1; /* Going to exit.... */ 92 unsigned NatEnabled : 1; /* Are we using libalias ? */ 93 94 struct fsm_parent fsm; /* Our callback functions */ 95 struct datalink *links; /* Our data links */ 96 97 time_t upat; /* When the link came up */ 98 99 struct { 100 struct { 101 int timeout; /* NCP Idle timeout value */ 102 int min_timeout; /* Don't idle out before this */ 103 } idle; 104 struct { 105 char name[AUTHLEN]; /* PAP/CHAP system name */ 106 char key[AUTHLEN]; /* PAP/CHAP key */ 107 } auth; 108 unsigned opt; /* Uses OPT_ bits from above */ 109 char label[50]; /* last thing `load'ed */ 110 u_short ifqueue; /* Interface queue size */ 111 112 struct { 113 int timeout; /* How long to leave the output queue choked */ 114 } choked; 115 } cfg; 116 117 struct ncp ncp; 118 119 struct { 120 struct filter in; /* incoming packet filter */ 121 struct filter out; /* outgoing packet filter */ 122 struct filter dial; /* dial-out packet filter */ 123 struct filter alive; /* keep-alive packet filter */ 124 } filter; 125 126 struct { 127 struct pppTimer timer; /* timeout after cfg.idle_timeout */ 128 time_t done; 129 } idle; 130 131 #ifndef NORADIUS 132 struct { 133 struct pppTimer timer; 134 time_t done; 135 } session; 136 #endif 137 138 struct { 139 int fd; /* write status here */ 140 } notify; 141 142 struct { 143 struct pppTimer timer; /* choked output queue timer */ 144 } choked; 145 146 #ifndef NORADIUS 147 struct radius radius; /* Info retrieved from radius server */ 148 struct radacct radacct; 149 #ifndef NOINET6 150 struct radacct radacct6; 151 #endif 152 #endif 153 }; 154 155 #define descriptor2bundle(d) \ 156 ((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL) 157 158 extern struct bundle *bundle_Create(const char *, int, int); 159 extern void bundle_Destroy(struct bundle *); 160 extern const char *bundle_PhaseName(struct bundle *); 161 #define bundle_Phase(b) ((b)->phase) 162 extern void bundle_NewPhase(struct bundle *, u_int); 163 extern void bundle_LinksRemoved(struct bundle *); 164 extern void bundle_Close(struct bundle *, const char *, int); 165 extern void bundle_Down(struct bundle *, int); 166 extern void bundle_Open(struct bundle *, const char *, int, int); 167 extern void bundle_LinkClosed(struct bundle *, struct datalink *); 168 169 extern int bundle_ShowLinks(struct cmdargs const *); 170 extern int bundle_ShowStatus(struct cmdargs const *); 171 extern void bundle_StartIdleTimer(struct bundle *, unsigned secs); 172 extern void bundle_SetIdleTimer(struct bundle *, int, int); 173 extern void bundle_StopIdleTimer(struct bundle *); 174 extern int bundle_IsDead(struct bundle *); 175 extern struct datalink *bundle2datalink(struct bundle *, const char *); 176 177 #ifndef NORADIUS 178 extern void bundle_StartSessionTimer(struct bundle *, unsigned secs); 179 extern void bundle_StopSessionTimer(struct bundle *); 180 #endif 181 182 extern void bundle_RegisterDescriptor(struct bundle *, struct fdescriptor *); 183 extern void bundle_UnRegisterDescriptor(struct bundle *, struct fdescriptor *); 184 185 extern void bundle_SetTtyCommandMode(struct bundle *, struct datalink *); 186 187 extern int bundle_DatalinkClone(struct bundle *, struct datalink *, 188 const char *); 189 extern void bundle_DatalinkRemove(struct bundle *, struct datalink *); 190 extern void bundle_CleanDatalinks(struct bundle *); 191 extern void bundle_SetLabel(struct bundle *, const char *); 192 extern const char *bundle_GetLabel(struct bundle *); 193 extern void bundle_SendDatalink(struct datalink *, int, struct sockaddr_un *); 194 extern int bundle_LinkSize(void); 195 extern void bundle_ReceiveDatalink(struct bundle *, int); 196 extern int bundle_SetMode(struct bundle *, struct datalink *, int); 197 extern int bundle_RenameDatalink(struct bundle *, struct datalink *, 198 const char *); 199 extern void bundle_setsid(struct bundle *, int); 200 extern void bundle_LockTun(struct bundle *); 201 extern int bundle_HighestState(struct bundle *); 202 extern int bundle_Exception(struct bundle *, int); 203 extern void bundle_AdjustFilters(struct bundle *, struct ncpaddr *, 204 struct ncpaddr *); 205 extern void bundle_AdjustDNS(struct bundle *); 206 extern void bundle_CalculateBandwidth(struct bundle *); 207 extern void bundle_AutoAdjust(struct bundle *, int, int); 208 extern int bundle_WantAutoloadTimer(struct bundle *); 209 extern void bundle_ChangedPID(struct bundle *); 210 extern void bundle_Notify(struct bundle *, char); 211 extern int bundle_Uptime(struct bundle *); 212