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_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 51 /* AutoAdjust() values */ 52 #define AUTO_UP 1 53 #define AUTO_DOWN 2 54 55 struct sockaddr_un; 56 struct datalink; 57 struct physical; 58 struct link; 59 struct server; 60 struct prompt; 61 struct iface; 62 63 struct bundle { 64 struct descriptor desc; /* really all our datalinks */ 65 int unit; /* The device/interface unit number */ 66 67 struct { 68 char Name[20]; /* The /dev/XXXX name */ 69 int fd; /* The /dev/XXXX descriptor */ 70 } dev; 71 72 u_long bandwidth; /* struct tuninfo speed */ 73 struct iface *iface; /* Interface information */ 74 75 int routing_seq; /* The current routing sequence number */ 76 u_int phase; /* Curent phase */ 77 78 struct { 79 int all; /* Union of all physical::type's */ 80 int open; /* Union of all open physical::type's */ 81 } phys_type; 82 83 unsigned CleaningUp : 1; /* Going to exit.... */ 84 unsigned NatEnabled : 1; /* Are we using libalias ? */ 85 86 struct fsm_parent fsm; /* Our callback functions */ 87 struct datalink *links; /* Our data links */ 88 89 time_t upat; /* When the link came up */ 90 91 struct { 92 struct { 93 int timeout; /* NCP Idle timeout value */ 94 int min_timeout; /* Don't idle out before this */ 95 } idle; 96 struct { 97 char name[AUTHLEN]; /* PAP/CHAP system name */ 98 char key[AUTHLEN]; /* PAP/CHAP key */ 99 } auth; 100 unsigned opt; /* Uses OPT_ bits from above */ 101 char label[50]; /* last thing `load'ed */ 102 u_short mtu; /* Interface mtu */ 103 104 struct { 105 int timeout; /* How long to leave the output queue choked */ 106 } choked; 107 } cfg; 108 109 struct { 110 struct ipcp ipcp; /* Our IPCP FSM */ 111 struct mp mp; /* Our MP */ 112 } ncp; 113 114 struct { 115 struct filter in; /* incoming packet filter */ 116 struct filter out; /* outgoing packet filter */ 117 struct filter dial; /* dial-out packet filter */ 118 struct filter alive; /* keep-alive packet filter */ 119 } filter; 120 121 struct { 122 struct pppTimer timer; /* timeout after cfg.idle_timeout */ 123 time_t done; 124 } idle; 125 126 struct { 127 int fd; /* write status here */ 128 } notify; 129 130 struct { 131 struct pppTimer timer; /* choked output queue timer */ 132 } choked; 133 134 #ifndef NORADIUS 135 struct radius radius; /* Info retrieved from radius server */ 136 #endif 137 }; 138 139 #define descriptor2bundle(d) \ 140 ((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL) 141 142 extern struct bundle *bundle_Create(const char *, int, int); 143 extern void bundle_Destroy(struct bundle *); 144 extern const char *bundle_PhaseName(struct bundle *); 145 #define bundle_Phase(b) ((b)->phase) 146 extern void bundle_NewPhase(struct bundle *, u_int); 147 extern void bundle_LinksRemoved(struct bundle *); 148 extern int bundle_LinkIsUp(const struct bundle *); 149 extern int bundle_SetRoute(struct bundle *, int, struct in_addr, 150 struct in_addr, struct in_addr, int, int); 151 extern void bundle_Close(struct bundle *, const char *, int); 152 extern void bundle_Down(struct bundle *, int); 153 extern void bundle_Open(struct bundle *, const char *, int, int); 154 extern void bundle_LinkClosed(struct bundle *, struct datalink *); 155 156 extern int bundle_ShowLinks(struct cmdargs const *); 157 extern int bundle_ShowStatus(struct cmdargs const *); 158 extern void bundle_StartIdleTimer(struct bundle *); 159 extern void bundle_SetIdleTimer(struct bundle *, int, int); 160 extern void bundle_StopIdleTimer(struct bundle *); 161 extern int bundle_IsDead(struct bundle *); 162 extern struct datalink *bundle2datalink(struct bundle *, const char *); 163 164 extern void bundle_RegisterDescriptor(struct bundle *, struct descriptor *); 165 extern void bundle_UnRegisterDescriptor(struct bundle *, struct descriptor *); 166 167 extern void bundle_SetTtyCommandMode(struct bundle *, struct datalink *); 168 169 extern int bundle_DatalinkClone(struct bundle *, struct datalink *, 170 const char *); 171 extern void bundle_DatalinkRemove(struct bundle *, struct datalink *); 172 extern void bundle_CleanDatalinks(struct bundle *); 173 extern void bundle_SetLabel(struct bundle *, const char *); 174 extern const char *bundle_GetLabel(struct bundle *); 175 extern void bundle_SendDatalink(struct datalink *, int, struct sockaddr_un *); 176 extern int bundle_LinkSize(void); 177 extern void bundle_ReceiveDatalink(struct bundle *, int); 178 extern int bundle_SetMode(struct bundle *, struct datalink *, int); 179 extern int bundle_RenameDatalink(struct bundle *, struct datalink *, 180 const char *); 181 extern void bundle_setsid(struct bundle *, int); 182 extern void bundle_LockTun(struct bundle *); 183 extern int bundle_HighestState(struct bundle *); 184 extern int bundle_Exception(struct bundle *, int); 185 extern void bundle_AdjustFilters(struct bundle *, struct in_addr *, 186 struct in_addr *); 187 extern void bundle_CalculateBandwidth(struct bundle *); 188 extern void bundle_AutoAdjust(struct bundle *, int, int); 189 extern int bundle_WantAutoloadTimer(struct bundle *); 190