bundle.c revision 61800
136285Sbrian/*- 236285Sbrian * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 336285Sbrian * All rights reserved. 436285Sbrian * 536285Sbrian * Redistribution and use in source and binary forms, with or without 636285Sbrian * modification, are permitted provided that the following conditions 736285Sbrian * are met: 836285Sbrian * 1. Redistributions of source code must retain the above copyright 936285Sbrian * notice, this list of conditions and the following disclaimer. 1036285Sbrian * 2. Redistributions in binary form must reproduce the above copyright 1136285Sbrian * notice, this list of conditions and the following disclaimer in the 1236285Sbrian * documentation and/or other materials provided with the distribution. 1336285Sbrian * 1436285Sbrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1536285Sbrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1636285Sbrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1736285Sbrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1836285Sbrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1936285Sbrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2036285Sbrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2136285Sbrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2236285Sbrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2336285Sbrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2436285Sbrian * SUCH DAMAGE. 2536285Sbrian * 2650479Speter * $FreeBSD: head/usr.sbin/ppp/bundle.c 61800 2000-06-18 10:07:53Z brian $ 2736285Sbrian */ 2836285Sbrian 2936452Sbrian#include <sys/param.h> 3036285Sbrian#include <sys/socket.h> 3136285Sbrian#include <netinet/in.h> 3236285Sbrian#include <net/if.h> 3356413Sbrian#include <net/if_tun.h> /* For TUNS* ioctls */ 3436285Sbrian#include <arpa/inet.h> 3536285Sbrian#include <net/route.h> 3636285Sbrian#include <netinet/in_systm.h> 3736285Sbrian#include <netinet/ip.h> 3836285Sbrian#include <sys/un.h> 3936285Sbrian 4036285Sbrian#include <errno.h> 4136285Sbrian#include <fcntl.h> 4253298Sbrian#ifdef __OpenBSD__ 4353298Sbrian#include <util.h> 4453298Sbrian#else 4553298Sbrian#include <libutil.h> 4653298Sbrian#endif 4736285Sbrian#include <paths.h> 4836285Sbrian#include <stdio.h> 4936285Sbrian#include <stdlib.h> 5036285Sbrian#include <string.h> 5136285Sbrian#include <sys/uio.h> 5236345Sbrian#include <sys/wait.h> 5351525Sbrian#if defined(__FreeBSD__) && !defined(NOKLDLOAD) 5451525Sbrian#include <sys/linker.h> 5553241Sbrian#include <sys/module.h> 5651525Sbrian#endif 5736285Sbrian#include <termios.h> 5836285Sbrian#include <unistd.h> 5936285Sbrian 6046686Sbrian#include "layer.h" 6137009Sbrian#include "defs.h" 6236285Sbrian#include "command.h" 6336285Sbrian#include "mbuf.h" 6436285Sbrian#include "log.h" 6536285Sbrian#include "id.h" 6636285Sbrian#include "timer.h" 6736285Sbrian#include "fsm.h" 6836285Sbrian#include "iplist.h" 6936285Sbrian#include "lqr.h" 7036285Sbrian#include "hdlc.h" 7136285Sbrian#include "throughput.h" 7236285Sbrian#include "slcompress.h" 7336285Sbrian#include "ipcp.h" 7436285Sbrian#include "filter.h" 7536285Sbrian#include "descriptor.h" 7636285Sbrian#include "route.h" 7736285Sbrian#include "lcp.h" 7836285Sbrian#include "ccp.h" 7936285Sbrian#include "link.h" 8036285Sbrian#include "mp.h" 8143313Sbrian#ifndef NORADIUS 8243313Sbrian#include "radius.h" 8343313Sbrian#endif 8436285Sbrian#include "bundle.h" 8536285Sbrian#include "async.h" 8636285Sbrian#include "physical.h" 8736285Sbrian#include "auth.h" 8846686Sbrian#include "proto.h" 8936285Sbrian#include "chap.h" 9036285Sbrian#include "tun.h" 9136285Sbrian#include "prompt.h" 9236285Sbrian#include "chat.h" 9338174Sbrian#include "cbcp.h" 9436285Sbrian#include "datalink.h" 9536285Sbrian#include "ip.h" 9640561Sbrian#include "iface.h" 9736285Sbrian 9853684Sbrian#define SCATTER_SEGMENTS 6 /* version, datalink, name, physical, 9953684Sbrian throughput, device */ 10036285Sbrian 10153684Sbrian#define SEND_MAXFD 3 /* Max file descriptors passed through 10253684Sbrian the local domain socket */ 10352942Sbrian 10436285Sbrianstatic int bundle_RemainingIdleTime(struct bundle *); 10536285Sbrian 10655146Sbrianstatic const char * const PhaseNames[] = { 10736285Sbrian "Dead", "Establish", "Authenticate", "Network", "Terminate" 10836285Sbrian}; 10936285Sbrian 11036285Sbrianconst char * 11136285Sbrianbundle_PhaseName(struct bundle *bundle) 11236285Sbrian{ 11336285Sbrian return bundle->phase <= PHASE_TERMINATE ? 11436285Sbrian PhaseNames[bundle->phase] : "unknown"; 11536285Sbrian} 11636285Sbrian 11736285Sbrianvoid 11836285Sbrianbundle_NewPhase(struct bundle *bundle, u_int new) 11936285Sbrian{ 12036285Sbrian if (new == bundle->phase) 12136285Sbrian return; 12236285Sbrian 12336285Sbrian if (new <= PHASE_TERMINATE) 12436285Sbrian log_Printf(LogPHASE, "bundle: %s\n", PhaseNames[new]); 12536285Sbrian 12636285Sbrian switch (new) { 12736285Sbrian case PHASE_DEAD: 12836314Sbrian log_DisplayPrompts(); 12936285Sbrian bundle->phase = new; 13036285Sbrian break; 13136285Sbrian 13236285Sbrian case PHASE_ESTABLISH: 13336285Sbrian bundle->phase = new; 13436285Sbrian break; 13536285Sbrian 13636285Sbrian case PHASE_AUTHENTICATE: 13736285Sbrian bundle->phase = new; 13836314Sbrian log_DisplayPrompts(); 13936285Sbrian break; 14036285Sbrian 14136285Sbrian case PHASE_NETWORK: 14236285Sbrian fsm_Up(&bundle->ncp.ipcp.fsm); 14336285Sbrian fsm_Open(&bundle->ncp.ipcp.fsm); 14436285Sbrian bundle->phase = new; 14536314Sbrian log_DisplayPrompts(); 14636285Sbrian break; 14736285Sbrian 14836285Sbrian case PHASE_TERMINATE: 14936285Sbrian bundle->phase = new; 15036285Sbrian mp_Down(&bundle->ncp.mp); 15136314Sbrian log_DisplayPrompts(); 15236285Sbrian break; 15336285Sbrian } 15436285Sbrian} 15536285Sbrian 15636285Sbrianstatic void 15736285Sbrianbundle_LayerStart(void *v, struct fsm *fp) 15836285Sbrian{ 15936285Sbrian /* The given FSM is about to start up ! */ 16036285Sbrian} 16136285Sbrian 16236285Sbrian 16359084Sbrianvoid 16436285Sbrianbundle_Notify(struct bundle *bundle, char c) 16536285Sbrian{ 16636285Sbrian if (bundle->notify.fd != -1) { 16759084Sbrian int ret; 16859084Sbrian 16959084Sbrian ret = write(bundle->notify.fd, &c, 1); 17059084Sbrian if (c != EX_REDIAL && c != EX_RECONNECT) { 17159084Sbrian if (ret == 1) 17259084Sbrian log_Printf(LogCHAT, "Parent notified of %s\n", 17359084Sbrian c == EX_NORMAL ? "success" : "failure"); 17459084Sbrian else 17559084Sbrian log_Printf(LogERROR, "Failed to notify parent of success\n"); 17659084Sbrian close(bundle->notify.fd); 17759084Sbrian bundle->notify.fd = -1; 17859084Sbrian } else if (ret == 1) 17959084Sbrian log_Printf(LogCHAT, "Parent notified of %s\n", ex_desc(c)); 18036285Sbrian else 18159084Sbrian log_Printf(LogERROR, "Failed to notify parent of %s\n", ex_desc(c)); 18236285Sbrian } 18336285Sbrian} 18436285Sbrian 18538544Sbrianstatic void 18638544Sbrianbundle_ClearQueues(void *v) 18738544Sbrian{ 18838544Sbrian struct bundle *bundle = (struct bundle *)v; 18938544Sbrian struct datalink *dl; 19038544Sbrian 19138544Sbrian log_Printf(LogPHASE, "Clearing choked output queue\n"); 19238544Sbrian timer_Stop(&bundle->choked.timer); 19338544Sbrian 19438544Sbrian /* 19538544Sbrian * Emergency time: 19638544Sbrian * 19738544Sbrian * We've had a full queue for PACKET_DEL_SECS seconds without being 19838544Sbrian * able to get rid of any of the packets. We've probably given up 19938544Sbrian * on the redials at this point, and the queued data has almost 20038544Sbrian * definitely been timed out by the layer above. As this is preventing 20138544Sbrian * us from reading the TUN_NAME device (we don't want to buffer stuff 20238544Sbrian * indefinitely), we may as well nuke this data and start with a clean 20338544Sbrian * slate ! 20438544Sbrian * 20538544Sbrian * Unfortunately, this has the side effect of shafting any compression 20638544Sbrian * dictionaries in use (causing the relevant RESET_REQ/RESET_ACK). 20738544Sbrian */ 20838544Sbrian 20938557Sbrian ip_DeleteQueue(&bundle->ncp.ipcp); 21038544Sbrian mp_DeleteQueue(&bundle->ncp.mp); 21138544Sbrian for (dl = bundle->links; dl; dl = dl->next) 21238544Sbrian physical_DeleteQueue(dl->physical); 21338544Sbrian} 21438544Sbrian 21536285Sbrianstatic void 21636928Sbrianbundle_LinkAdded(struct bundle *bundle, struct datalink *dl) 21736928Sbrian{ 21836928Sbrian bundle->phys_type.all |= dl->physical->type; 21936928Sbrian if (dl->state == DATALINK_OPEN) 22036928Sbrian bundle->phys_type.open |= dl->physical->type; 22136285Sbrian 22236928Sbrian if ((bundle->phys_type.open & (PHYS_DEDICATED|PHYS_DDIAL)) 22336928Sbrian != bundle->phys_type.open && bundle->idle.timer.state == TIMER_STOPPED) 22436928Sbrian /* We may need to start our idle timer */ 22536928Sbrian bundle_StartIdleTimer(bundle); 22636928Sbrian} 22736928Sbrian 22838174Sbrianvoid 22936928Sbrianbundle_LinksRemoved(struct bundle *bundle) 23036928Sbrian{ 23136928Sbrian struct datalink *dl; 23236928Sbrian 23336928Sbrian bundle->phys_type.all = bundle->phys_type.open = 0; 23436928Sbrian for (dl = bundle->links; dl; dl = dl->next) 23536928Sbrian bundle_LinkAdded(bundle, dl); 23636928Sbrian 23749434Sbrian bundle_CalculateBandwidth(bundle); 23849434Sbrian mp_CheckAutoloadTimer(&bundle->ncp.mp); 23949434Sbrian 24036928Sbrian if ((bundle->phys_type.open & (PHYS_DEDICATED|PHYS_DDIAL)) 24136928Sbrian == bundle->phys_type.open) 24236928Sbrian bundle_StopIdleTimer(bundle); 24336928Sbrian} 24436928Sbrian 24536928Sbrianstatic void 24636285Sbrianbundle_LayerUp(void *v, struct fsm *fp) 24736285Sbrian{ 24836285Sbrian /* 24936285Sbrian * The given fsm is now up 25049434Sbrian * If it's an LCP, adjust our phys_mode.open value and check the 25149434Sbrian * autoload timer. 25249434Sbrian * If it's the first NCP, calculate our bandwidth 25349978Sbrian * If it's the first NCP, set our ``upat'' time 25449434Sbrian * If it's the first NCP, start the idle timer. 25536285Sbrian * If it's an NCP, tell our -background parent to go away. 25649434Sbrian * If it's the first NCP, start the autoload timer 25736285Sbrian */ 25836285Sbrian struct bundle *bundle = (struct bundle *)v; 25936285Sbrian 26036285Sbrian if (fp->proto == PROTO_LCP) { 26136928Sbrian struct physical *p = link2physical(fp->link); 26236928Sbrian 26336928Sbrian bundle_LinkAdded(bundle, p->dl); 26449434Sbrian mp_CheckAutoloadTimer(&bundle->ncp.mp); 26536285Sbrian } else if (fp->proto == PROTO_IPCP) { 26649434Sbrian bundle_CalculateBandwidth(fp->bundle); 26749978Sbrian time(&bundle->upat); 26836285Sbrian bundle_StartIdleTimer(bundle); 26936285Sbrian bundle_Notify(bundle, EX_NORMAL); 27049434Sbrian mp_CheckAutoloadTimer(&fp->bundle->ncp.mp); 27136285Sbrian } 27236285Sbrian} 27336285Sbrian 27436285Sbrianstatic void 27536285Sbrianbundle_LayerDown(void *v, struct fsm *fp) 27636285Sbrian{ 27736285Sbrian /* 27836285Sbrian * The given FSM has been told to come down. 27936285Sbrian * If it's our last NCP, stop the idle timer. 28049978Sbrian * If it's our last NCP, clear our ``upat'' value. 28149434Sbrian * If it's our last NCP, stop the autoload timer 28236928Sbrian * If it's an LCP, adjust our phys_type.open value and any timers. 28336312Sbrian * If it's an LCP and we're in multilink mode, adjust our tun 28459070Sbrian * If it's the last LCP, down all NCPs 28536312Sbrian * speed and make sure our minimum sequence number is adjusted. 28636285Sbrian */ 28736285Sbrian 28836285Sbrian struct bundle *bundle = (struct bundle *)v; 28936285Sbrian 29049434Sbrian if (fp->proto == PROTO_IPCP) { 29136285Sbrian bundle_StopIdleTimer(bundle); 29249978Sbrian bundle->upat = 0; 29349434Sbrian mp_StopAutoloadTimer(&bundle->ncp.mp); 29449434Sbrian } else if (fp->proto == PROTO_LCP) { 29559070Sbrian struct datalink *dl; 29659070Sbrian struct datalink *lost; 29759070Sbrian int others_active; 29859070Sbrian 29936928Sbrian bundle_LinksRemoved(bundle); /* adjust timers & phys_type values */ 30036285Sbrian 30159070Sbrian lost = NULL; 30259070Sbrian others_active = 0; 30359070Sbrian for (dl = bundle->links; dl; dl = dl->next) { 30459070Sbrian if (fp == &dl->physical->link.lcp.fsm) 30559070Sbrian lost = dl; 30659070Sbrian else if (dl->state != DATALINK_CLOSED && dl->state != DATALINK_HANGUP) 30759070Sbrian others_active++; 30859070Sbrian } 30936312Sbrian 31059070Sbrian if (bundle->ncp.mp.active) { 31149434Sbrian bundle_CalculateBandwidth(bundle); 31236312Sbrian 31336928Sbrian if (lost) 31436928Sbrian mp_LinkLost(&bundle->ncp.mp, lost); 31536928Sbrian else 31637019Sbrian log_Printf(LogALERT, "Oops, lost an unrecognised datalink (%s) !\n", 31736928Sbrian fp->link->name); 31836928Sbrian } 31959070Sbrian 32059070Sbrian if (!others_active) 32159070Sbrian /* Down the NCPs. We don't expect to get fsm_Close()d ourself ! */ 32259070Sbrian fsm2initial(&bundle->ncp.ipcp.fsm); 32336285Sbrian } 32436285Sbrian} 32536285Sbrian 32636285Sbrianstatic void 32736285Sbrianbundle_LayerFinish(void *v, struct fsm *fp) 32836285Sbrian{ 32936285Sbrian /* The given fsm is now down (fp cannot be NULL) 33036285Sbrian * 33136285Sbrian * If it's the last NCP, fsm_Close all LCPs 33236285Sbrian */ 33336285Sbrian 33436285Sbrian struct bundle *bundle = (struct bundle *)v; 33536285Sbrian struct datalink *dl; 33636285Sbrian 33736285Sbrian if (fp->proto == PROTO_IPCP) { 33836285Sbrian if (bundle_Phase(bundle) != PHASE_DEAD) 33936285Sbrian bundle_NewPhase(bundle, PHASE_TERMINATE); 34036285Sbrian for (dl = bundle->links; dl; dl = dl->next) 34159070Sbrian if (dl->state == DATALINK_OPEN) 34259070Sbrian datalink_Close(dl, CLOSE_STAYDOWN); 34337060Sbrian fsm2initial(fp); 34436285Sbrian } 34536285Sbrian} 34636285Sbrian 34736285Sbrianint 34836285Sbrianbundle_LinkIsUp(const struct bundle *bundle) 34936285Sbrian{ 35036285Sbrian return bundle->ncp.ipcp.fsm.state == ST_OPENED; 35136285Sbrian} 35236285Sbrian 35336285Sbrianvoid 35437007Sbrianbundle_Close(struct bundle *bundle, const char *name, int how) 35536285Sbrian{ 35636285Sbrian /* 35736285Sbrian * Please close the given datalink. 35836285Sbrian * If name == NULL or name is the last datalink, fsm_Close all NCPs 35936285Sbrian * (except our MP) 36036285Sbrian * If it isn't the last datalink, just Close that datalink. 36136285Sbrian */ 36236285Sbrian 36336285Sbrian struct datalink *dl, *this_dl; 36436285Sbrian int others_active; 36536285Sbrian 36636285Sbrian others_active = 0; 36736285Sbrian this_dl = NULL; 36836285Sbrian 36936285Sbrian for (dl = bundle->links; dl; dl = dl->next) { 37036285Sbrian if (name && !strcasecmp(name, dl->name)) 37136285Sbrian this_dl = dl; 37236285Sbrian if (name == NULL || this_dl == dl) { 37337007Sbrian switch (how) { 37437007Sbrian case CLOSE_LCP: 37537007Sbrian datalink_DontHangup(dl); 37637007Sbrian /* fall through */ 37737007Sbrian case CLOSE_STAYDOWN: 37837007Sbrian datalink_StayDown(dl); 37937007Sbrian break; 38037007Sbrian } 38136285Sbrian } else if (dl->state != DATALINK_CLOSED && dl->state != DATALINK_HANGUP) 38236285Sbrian others_active++; 38336285Sbrian } 38436285Sbrian 38536285Sbrian if (name && this_dl == NULL) { 38636285Sbrian log_Printf(LogWARN, "%s: Invalid datalink name\n", name); 38736285Sbrian return; 38836285Sbrian } 38936285Sbrian 39036285Sbrian if (!others_active) { 39136285Sbrian bundle_StopIdleTimer(bundle); 39236285Sbrian if (bundle->ncp.ipcp.fsm.state > ST_CLOSED || 39336285Sbrian bundle->ncp.ipcp.fsm.state == ST_STARTING) 39436285Sbrian fsm_Close(&bundle->ncp.ipcp.fsm); 39536285Sbrian else { 39637060Sbrian fsm2initial(&bundle->ncp.ipcp.fsm); 39736285Sbrian for (dl = bundle->links; dl; dl = dl->next) 39837007Sbrian datalink_Close(dl, how); 39936285Sbrian } 40036285Sbrian } else if (this_dl && this_dl->state != DATALINK_CLOSED && 40136285Sbrian this_dl->state != DATALINK_HANGUP) 40237007Sbrian datalink_Close(this_dl, how); 40336285Sbrian} 40436285Sbrian 40536285Sbrianvoid 40637018Sbrianbundle_Down(struct bundle *bundle, int how) 40736285Sbrian{ 40836285Sbrian struct datalink *dl; 40936285Sbrian 41036285Sbrian for (dl = bundle->links; dl; dl = dl->next) 41137018Sbrian datalink_Down(dl, how); 41236285Sbrian} 41336285Sbrian 41454912Sbrianstatic size_t 41554912Sbrianbundle_FillQueues(struct bundle *bundle) 41654912Sbrian{ 41754912Sbrian size_t total; 41854912Sbrian 41954912Sbrian if (bundle->ncp.mp.active) 42054912Sbrian total = mp_FillQueues(bundle); 42154912Sbrian else { 42254912Sbrian struct datalink *dl; 42354912Sbrian size_t add; 42454912Sbrian 42554912Sbrian for (total = 0, dl = bundle->links; dl; dl = dl->next) 42654912Sbrian if (dl->state == DATALINK_OPEN) { 42754912Sbrian add = link_QueueLen(&dl->physical->link); 42854912Sbrian if (add == 0 && dl->physical->out == NULL) 42954912Sbrian add = ip_PushPacket(&dl->physical->link, bundle); 43054912Sbrian total += add; 43154912Sbrian } 43254912Sbrian } 43354912Sbrian 43454912Sbrian return total + ip_QueueLen(&bundle->ncp.ipcp); 43554912Sbrian} 43654912Sbrian 43736285Sbrianstatic int 43858028Sbrianbundle_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e, int *n) 43936285Sbrian{ 44036285Sbrian struct bundle *bundle = descriptor2bundle(d); 44136285Sbrian struct datalink *dl; 44254912Sbrian int result, nlinks; 44361534Sbrian u_short ifqueue; 44454912Sbrian size_t queued; 44536285Sbrian 44636285Sbrian result = 0; 44736285Sbrian 44836285Sbrian /* If there are aren't many packets queued, look for some more. */ 44936285Sbrian for (nlinks = 0, dl = bundle->links; dl; dl = dl->next) 45036285Sbrian nlinks++; 45136285Sbrian 45236285Sbrian if (nlinks) { 45338557Sbrian queued = r ? bundle_FillQueues(bundle) : ip_QueueLen(&bundle->ncp.ipcp); 45436285Sbrian 45536928Sbrian if (r && (bundle->phase == PHASE_NETWORK || 45636928Sbrian bundle->phys_type.all & PHYS_AUTO)) { 45736285Sbrian /* enough surplus so that we can tell if we're getting swamped */ 45861534Sbrian ifqueue = nlinks > bundle->cfg.ifqueue ? nlinks : bundle->cfg.ifqueue; 45961534Sbrian if (queued < ifqueue) { 46036285Sbrian /* Not enough - select() for more */ 46138544Sbrian if (bundle->choked.timer.state == TIMER_RUNNING) 46238544Sbrian timer_Stop(&bundle->choked.timer); /* Not needed any more */ 46336285Sbrian FD_SET(bundle->dev.fd, r); 46436285Sbrian if (*n < bundle->dev.fd + 1) 46536285Sbrian *n = bundle->dev.fd + 1; 46636452Sbrian log_Printf(LogTIMER, "%s: fdset(r) %d\n", TUN_NAME, bundle->dev.fd); 46736285Sbrian result++; 46838544Sbrian } else if (bundle->choked.timer.state == TIMER_STOPPED) { 46938544Sbrian bundle->choked.timer.func = bundle_ClearQueues; 47038544Sbrian bundle->choked.timer.name = "output choke"; 47138544Sbrian bundle->choked.timer.load = bundle->cfg.choked.timeout * SECTICKS; 47238544Sbrian bundle->choked.timer.arg = bundle; 47338544Sbrian timer_Start(&bundle->choked.timer); 47436285Sbrian } 47536285Sbrian } 47636285Sbrian } 47736285Sbrian 47843693Sbrian#ifndef NORADIUS 47943693Sbrian result += descriptor_UpdateSet(&bundle->radius.desc, r, w, e, n); 48043693Sbrian#endif 48143693Sbrian 48236714Sbrian /* Which links need a select() ? */ 48336714Sbrian for (dl = bundle->links; dl; dl = dl->next) 48436714Sbrian result += descriptor_UpdateSet(&dl->desc, r, w, e, n); 48536714Sbrian 48636285Sbrian /* 48736285Sbrian * This *MUST* be called after the datalink UpdateSet()s as it 48836285Sbrian * might be ``holding'' one of the datalinks (death-row) and 48958038Sbrian * wants to be able to de-select() it from the descriptor set. 49036285Sbrian */ 49136314Sbrian result += descriptor_UpdateSet(&bundle->ncp.mp.server.desc, r, w, e, n); 49236285Sbrian 49336285Sbrian return result; 49436285Sbrian} 49536285Sbrian 49636285Sbrianstatic int 49758028Sbrianbundle_IsSet(struct fdescriptor *d, const fd_set *fdset) 49836285Sbrian{ 49936285Sbrian struct bundle *bundle = descriptor2bundle(d); 50036285Sbrian struct datalink *dl; 50136285Sbrian 50236285Sbrian for (dl = bundle->links; dl; dl = dl->next) 50336285Sbrian if (descriptor_IsSet(&dl->desc, fdset)) 50436285Sbrian return 1; 50536285Sbrian 50643693Sbrian#ifndef NORADIUS 50743693Sbrian if (descriptor_IsSet(&bundle->radius.desc, fdset)) 50843693Sbrian return 1; 50943693Sbrian#endif 51043693Sbrian 51136285Sbrian if (descriptor_IsSet(&bundle->ncp.mp.server.desc, fdset)) 51236285Sbrian return 1; 51336285Sbrian 51436285Sbrian return FD_ISSET(bundle->dev.fd, fdset); 51536285Sbrian} 51636285Sbrian 51736285Sbrianstatic void 51858028Sbrianbundle_DescriptorRead(struct fdescriptor *d, struct bundle *bundle, 51936285Sbrian const fd_set *fdset) 52036285Sbrian{ 52136285Sbrian struct datalink *dl; 52236285Sbrian 52336285Sbrian if (descriptor_IsSet(&bundle->ncp.mp.server.desc, fdset)) 52436285Sbrian descriptor_Read(&bundle->ncp.mp.server.desc, bundle, fdset); 52536285Sbrian 52636285Sbrian for (dl = bundle->links; dl; dl = dl->next) 52736285Sbrian if (descriptor_IsSet(&dl->desc, fdset)) 52836285Sbrian descriptor_Read(&dl->desc, bundle, fdset); 52936285Sbrian 53043693Sbrian#ifndef NORADIUS 53143693Sbrian if (descriptor_IsSet(&bundle->radius.desc, fdset)) 53243693Sbrian descriptor_Read(&bundle->radius.desc, bundle, fdset); 53343693Sbrian#endif 53443693Sbrian 53536285Sbrian if (FD_ISSET(bundle->dev.fd, fdset)) { 53636285Sbrian struct tun_data tun; 53736285Sbrian int n, pri; 53856413Sbrian char *data; 53956413Sbrian size_t sz; 54036285Sbrian 54156413Sbrian if (bundle->dev.header) { 54256413Sbrian data = (char *)&tun; 54356413Sbrian sz = sizeof tun; 54456413Sbrian } else { 54556413Sbrian data = tun.data; 54656413Sbrian sz = sizeof tun.data; 54756413Sbrian } 54856413Sbrian 54936285Sbrian /* something to read from tun */ 55056413Sbrian 55156413Sbrian n = read(bundle->dev.fd, data, sz); 55236285Sbrian if (n < 0) { 55356413Sbrian log_Printf(LogWARN, "%s: read: %s\n", bundle->dev.Name, strerror(errno)); 55436285Sbrian return; 55536285Sbrian } 55656413Sbrian 55756413Sbrian if (bundle->dev.header) { 55856413Sbrian n -= sz - sizeof tun.data; 55956413Sbrian if (n <= 0) { 56056413Sbrian log_Printf(LogERROR, "%s: read: Got only %d bytes of data !\n", 56156413Sbrian bundle->dev.Name, n); 56256413Sbrian return; 56356413Sbrian } 56456413Sbrian if (ntohl(tun.family) != AF_INET) 56556413Sbrian /* XXX: Should be maintaining drop/family counts ! */ 56656413Sbrian return; 56736285Sbrian } 56836285Sbrian 56936285Sbrian if (((struct ip *)tun.data)->ip_dst.s_addr == 57036285Sbrian bundle->ncp.ipcp.my_ip.s_addr) { 57136285Sbrian /* we've been asked to send something addressed *to* us :( */ 57236285Sbrian if (Enabled(bundle, OPT_LOOPBACK)) { 57336285Sbrian pri = PacketCheck(bundle, tun.data, n, &bundle->filter.in); 57436285Sbrian if (pri >= 0) { 57556413Sbrian n += sz - sizeof tun.data; 57656413Sbrian write(bundle->dev.fd, data, n); 57736285Sbrian log_Printf(LogDEBUG, "Looped back packet addressed to myself\n"); 57836285Sbrian } 57936285Sbrian return; 58036285Sbrian } else 58136285Sbrian log_Printf(LogDEBUG, "Oops - forwarding packet addressed to myself\n"); 58236285Sbrian } 58336285Sbrian 58436285Sbrian /* 58536285Sbrian * Process on-demand dialup. Output packets are queued within tunnel 58636285Sbrian * device until IPCP is opened. 58736285Sbrian */ 58836285Sbrian 58936285Sbrian if (bundle_Phase(bundle) == PHASE_DEAD) { 59036285Sbrian /* 59136285Sbrian * Note, we must be in AUTO mode :-/ otherwise our interface should 59236285Sbrian * *not* be UP and we can't receive data 59336285Sbrian */ 59436285Sbrian if ((pri = PacketCheck(bundle, tun.data, n, &bundle->filter.dial)) >= 0) 59537955Sbrian bundle_Open(bundle, NULL, PHYS_AUTO, 0); 59636285Sbrian else 59736285Sbrian /* 59836285Sbrian * Drop the packet. If we were to queue it, we'd just end up with 59936285Sbrian * a pile of timed-out data in our output queue by the time we get 60036285Sbrian * around to actually dialing. We'd also prematurely reach the 60136285Sbrian * threshold at which we stop select()ing to read() the tun 60236285Sbrian * device - breaking auto-dial. 60336285Sbrian */ 60436285Sbrian return; 60536285Sbrian } 60636285Sbrian 60736285Sbrian pri = PacketCheck(bundle, tun.data, n, &bundle->filter.out); 60846686Sbrian if (pri >= 0) 60938557Sbrian ip_Enqueue(&bundle->ncp.ipcp, pri, tun.data, n); 61036285Sbrian } 61136285Sbrian} 61236285Sbrian 61337141Sbrianstatic int 61458028Sbrianbundle_DescriptorWrite(struct fdescriptor *d, struct bundle *bundle, 61536285Sbrian const fd_set *fdset) 61636285Sbrian{ 61736285Sbrian struct datalink *dl; 61837141Sbrian int result = 0; 61936285Sbrian 62036285Sbrian /* This is not actually necessary as struct mpserver doesn't Write() */ 62136285Sbrian if (descriptor_IsSet(&bundle->ncp.mp.server.desc, fdset)) 62236285Sbrian descriptor_Write(&bundle->ncp.mp.server.desc, bundle, fdset); 62336285Sbrian 62436285Sbrian for (dl = bundle->links; dl; dl = dl->next) 62536285Sbrian if (descriptor_IsSet(&dl->desc, fdset)) 62637141Sbrian result += descriptor_Write(&dl->desc, bundle, fdset); 62737141Sbrian 62837141Sbrian return result; 62936285Sbrian} 63036285Sbrian 63136709Sbrianvoid 63236452Sbrianbundle_LockTun(struct bundle *bundle) 63336452Sbrian{ 63436452Sbrian FILE *lockfile; 63536452Sbrian char pidfile[MAXPATHLEN]; 63636285Sbrian 63736452Sbrian snprintf(pidfile, sizeof pidfile, "%stun%d.pid", _PATH_VARRUN, bundle->unit); 63836452Sbrian lockfile = ID0fopen(pidfile, "w"); 63936452Sbrian if (lockfile != NULL) { 64036452Sbrian fprintf(lockfile, "%d\n", (int)getpid()); 64136452Sbrian fclose(lockfile); 64236452Sbrian } 64336452Sbrian#ifndef RELEASE_CRUNCH 64436452Sbrian else 64536452Sbrian log_Printf(LogERROR, "Warning: Can't create %s: %s\n", 64636452Sbrian pidfile, strerror(errno)); 64736452Sbrian#endif 64836452Sbrian} 64936452Sbrian 65036452Sbrianstatic void 65136452Sbrianbundle_UnlockTun(struct bundle *bundle) 65236452Sbrian{ 65336452Sbrian char pidfile[MAXPATHLEN]; 65436452Sbrian 65536452Sbrian snprintf(pidfile, sizeof pidfile, "%stun%d.pid", _PATH_VARRUN, bundle->unit); 65636452Sbrian ID0unlink(pidfile); 65736452Sbrian} 65836452Sbrian 65936285Sbrianstruct bundle * 66053298Sbrianbundle_Create(const char *prefix, int type, int unit) 66136285Sbrian{ 66247538Sbrian static struct bundle bundle; /* there can be only one */ 66352396Sbrian int enoentcount, err, minunit, maxunit; 66440561Sbrian const char *ifname; 66553241Sbrian#if defined(__FreeBSD__) && !defined(NOKLDLOAD) 66651525Sbrian int kldtried; 66751525Sbrian#endif 66856413Sbrian#if defined(TUNSIFMODE) || defined(TUNSLMODE) || defined(TUNSIFHEAD) 66945032Sbrian int iff; 67045032Sbrian#endif 67136285Sbrian 67240561Sbrian if (bundle.iface != NULL) { /* Already allocated ! */ 67337019Sbrian log_Printf(LogALERT, "bundle_Create: There's only one BUNDLE !\n"); 67436285Sbrian return NULL; 67536285Sbrian } 67636285Sbrian 67752396Sbrian if (unit == -1) { 67852396Sbrian minunit = 0; 67952396Sbrian maxunit = -1; 68052396Sbrian } else { 68152396Sbrian minunit = unit; 68252396Sbrian maxunit = unit + 1; 68352396Sbrian } 68436285Sbrian err = ENOENT; 68536285Sbrian enoentcount = 0; 68653241Sbrian#if defined(__FreeBSD__) && !defined(NOKLDLOAD) 68751525Sbrian kldtried = 0; 68851525Sbrian#endif 68952396Sbrian for (bundle.unit = minunit; bundle.unit != maxunit; bundle.unit++) { 69036285Sbrian snprintf(bundle.dev.Name, sizeof bundle.dev.Name, "%s%d", 69136285Sbrian prefix, bundle.unit); 69236285Sbrian bundle.dev.fd = ID0open(bundle.dev.Name, O_RDWR); 69336285Sbrian if (bundle.dev.fd >= 0) 69436285Sbrian break; 69536285Sbrian else if (errno == ENXIO) { 69653241Sbrian#if defined(__FreeBSD__) && !defined(NOKLDLOAD) 69752396Sbrian if (bundle.unit == minunit && !kldtried++) { 69851525Sbrian /* 69953241Sbrian * Attempt to load the tunnel interface KLD if it isn't loaded 70053241Sbrian * already. 70151525Sbrian */ 70253241Sbrian if (modfind("if_tun") == -1) { 70351525Sbrian if (ID0kldload("if_tun") != -1) { 70451525Sbrian bundle.unit--; 70551525Sbrian continue; 70651525Sbrian } 70751525Sbrian log_Printf(LogWARN, "kldload: if_tun: %s\n", strerror(errno)); 70851525Sbrian } 70951525Sbrian } 71051525Sbrian#endif 71136285Sbrian err = errno; 71236285Sbrian break; 71336285Sbrian } else if (errno == ENOENT) { 71436285Sbrian if (++enoentcount > 2) 71536285Sbrian break; 71636285Sbrian } else 71736285Sbrian err = errno; 71836285Sbrian } 71936285Sbrian 72036285Sbrian if (bundle.dev.fd < 0) { 72152396Sbrian if (unit == -1) 72252396Sbrian log_Printf(LogWARN, "No available tunnel devices found (%s)\n", 72352396Sbrian strerror(err)); 72452396Sbrian else 72552396Sbrian log_Printf(LogWARN, "%s%d: %s\n", prefix, unit, strerror(err)); 72636285Sbrian return NULL; 72736285Sbrian } 72836285Sbrian 72936285Sbrian log_SetTun(bundle.unit); 73036285Sbrian 73140561Sbrian ifname = strrchr(bundle.dev.Name, '/'); 73240561Sbrian if (ifname == NULL) 73340561Sbrian ifname = bundle.dev.Name; 73436285Sbrian else 73540561Sbrian ifname++; 73636285Sbrian 73740561Sbrian bundle.iface = iface_Create(ifname); 73840561Sbrian if (bundle.iface == NULL) { 73940561Sbrian close(bundle.dev.fd); 74040561Sbrian return NULL; 74140561Sbrian } 74240561Sbrian 74345032Sbrian#ifdef TUNSIFMODE 74445032Sbrian /* Make sure we're POINTOPOINT */ 74545032Sbrian iff = IFF_POINTOPOINT; 74645032Sbrian if (ID0ioctl(bundle.dev.fd, TUNSIFMODE, &iff) < 0) 74745032Sbrian log_Printf(LogERROR, "bundle_Create: ioctl(TUNSIFMODE): %s\n", 74845032Sbrian strerror(errno)); 74945032Sbrian#endif 75045032Sbrian 75148103Sbrian#ifdef TUNSLMODE 75256413Sbrian /* Make sure we're not prepending sockaddrs */ 75348103Sbrian iff = 0; 75448103Sbrian if (ID0ioctl(bundle.dev.fd, TUNSLMODE, &iff) < 0) 75548103Sbrian log_Printf(LogERROR, "bundle_Create: ioctl(TUNSLMODE): %s\n", 75648103Sbrian strerror(errno)); 75748103Sbrian#endif 75848103Sbrian 75956413Sbrian#ifdef TUNSIFHEAD 76056413Sbrian /* We want the address family please ! */ 76156413Sbrian iff = 1; 76256413Sbrian if (ID0ioctl(bundle.dev.fd, TUNSIFHEAD, &iff) < 0) { 76356413Sbrian log_Printf(LogERROR, "bundle_Create: ioctl(TUNSIFHEAD): %s\n", 76456413Sbrian strerror(errno)); 76556413Sbrian bundle.dev.header = 0; 76656413Sbrian } else 76756413Sbrian bundle.dev.header = 1; 76856413Sbrian#else 76956413Sbrian#ifdef __OpenBSD__ 77056413Sbrian /* Always present for OpenBSD */ 77156413Sbrian bundle.dev.header = 1; 77256413Sbrian#else 77356413Sbrian /* 77456413Sbrian * If TUNSIFHEAD isn't available and we're not OpenBSD, assume 77556413Sbrian * everything's AF_INET (hopefully the tun device won't pass us 77656413Sbrian * anything else !). 77756413Sbrian */ 77856413Sbrian bundle.dev.header = 0; 77956413Sbrian#endif 78056413Sbrian#endif 78156413Sbrian 78247538Sbrian if (!iface_SetFlags(bundle.iface, IFF_UP)) { 78340561Sbrian iface_Destroy(bundle.iface); 78440561Sbrian bundle.iface = NULL; 78536285Sbrian close(bundle.dev.fd); 78636285Sbrian return NULL; 78736285Sbrian } 78836285Sbrian 78940561Sbrian log_Printf(LogPHASE, "Using interface: %s\n", ifname); 79036285Sbrian 79149434Sbrian bundle.bandwidth = 0; 79236285Sbrian bundle.routing_seq = 0; 79336285Sbrian bundle.phase = PHASE_DEAD; 79436285Sbrian bundle.CleaningUp = 0; 79550059Sbrian bundle.NatEnabled = 0; 79636285Sbrian 79736285Sbrian bundle.fsm.LayerStart = bundle_LayerStart; 79836285Sbrian bundle.fsm.LayerUp = bundle_LayerUp; 79936285Sbrian bundle.fsm.LayerDown = bundle_LayerDown; 80036285Sbrian bundle.fsm.LayerFinish = bundle_LayerFinish; 80136285Sbrian bundle.fsm.object = &bundle; 80236285Sbrian 80349978Sbrian bundle.cfg.idle.timeout = NCP_IDLE_TIMEOUT; 80449978Sbrian bundle.cfg.idle.min_timeout = 0; 80536285Sbrian *bundle.cfg.auth.name = '\0'; 80636285Sbrian *bundle.cfg.auth.key = '\0'; 80736285Sbrian bundle.cfg.opt = OPT_SROUTES | OPT_IDCHECK | OPT_LOOPBACK | 80836285Sbrian OPT_THROUGHPUT | OPT_UTMP; 80936285Sbrian *bundle.cfg.label = '\0'; 81036285Sbrian bundle.cfg.mtu = DEF_MTU; 81161534Sbrian bundle.cfg.ifqueue = DEF_IFQUEUE; 81238544Sbrian bundle.cfg.choked.timeout = CHOKED_TIMEOUT; 81336928Sbrian bundle.phys_type.all = type; 81436928Sbrian bundle.phys_type.open = 0; 81549978Sbrian bundle.upat = 0; 81636285Sbrian 81736285Sbrian bundle.links = datalink_Create("deflink", &bundle, type); 81836285Sbrian if (bundle.links == NULL) { 81937019Sbrian log_Printf(LogALERT, "Cannot create data link: %s\n", strerror(errno)); 82040561Sbrian iface_Destroy(bundle.iface); 82140561Sbrian bundle.iface = NULL; 82236285Sbrian close(bundle.dev.fd); 82336285Sbrian return NULL; 82436285Sbrian } 82536285Sbrian 82636285Sbrian bundle.desc.type = BUNDLE_DESCRIPTOR; 82736285Sbrian bundle.desc.UpdateSet = bundle_UpdateSet; 82836285Sbrian bundle.desc.IsSet = bundle_IsSet; 82936285Sbrian bundle.desc.Read = bundle_DescriptorRead; 83036285Sbrian bundle.desc.Write = bundle_DescriptorWrite; 83136285Sbrian 83236285Sbrian mp_Init(&bundle.ncp.mp, &bundle); 83336285Sbrian 83436285Sbrian /* Send over the first physical link by default */ 83536285Sbrian ipcp_Init(&bundle.ncp.ipcp, &bundle, &bundle.links->physical->link, 83636285Sbrian &bundle.fsm); 83736285Sbrian 83836285Sbrian memset(&bundle.filter, '\0', sizeof bundle.filter); 83936285Sbrian bundle.filter.in.fragok = bundle.filter.in.logok = 1; 84036285Sbrian bundle.filter.in.name = "IN"; 84136285Sbrian bundle.filter.out.fragok = bundle.filter.out.logok = 1; 84236285Sbrian bundle.filter.out.name = "OUT"; 84336285Sbrian bundle.filter.dial.name = "DIAL"; 84436285Sbrian bundle.filter.dial.logok = 1; 84536285Sbrian bundle.filter.alive.name = "ALIVE"; 84636285Sbrian bundle.filter.alive.logok = 1; 84749140Sbrian { 84849140Sbrian int i; 84949140Sbrian for (i = 0; i < MAXFILTERS; i++) { 85049140Sbrian bundle.filter.in.rule[i].f_action = A_NONE; 85149140Sbrian bundle.filter.out.rule[i].f_action = A_NONE; 85249140Sbrian bundle.filter.dial.rule[i].f_action = A_NONE; 85349140Sbrian bundle.filter.alive.rule[i].f_action = A_NONE; 85449140Sbrian } 85549140Sbrian } 85636285Sbrian memset(&bundle.idle.timer, '\0', sizeof bundle.idle.timer); 85736285Sbrian bundle.idle.done = 0; 85836285Sbrian bundle.notify.fd = -1; 85938544Sbrian memset(&bundle.choked.timer, '\0', sizeof bundle.choked.timer); 86043313Sbrian#ifndef NORADIUS 86143313Sbrian radius_Init(&bundle.radius); 86243313Sbrian#endif 86336285Sbrian 86436285Sbrian /* Clean out any leftover crud */ 86540561Sbrian iface_Clear(bundle.iface, IFACE_CLEAR_ALL); 86636285Sbrian 86736452Sbrian bundle_LockTun(&bundle); 86836452Sbrian 86936285Sbrian return &bundle; 87036285Sbrian} 87136285Sbrian 87236285Sbrianstatic void 87336285Sbrianbundle_DownInterface(struct bundle *bundle) 87436285Sbrian{ 87536285Sbrian route_IfDelete(bundle, 1); 87647538Sbrian iface_ClearFlags(bundle->iface, IFF_UP); 87736285Sbrian} 87836285Sbrian 87936285Sbrianvoid 88036285Sbrianbundle_Destroy(struct bundle *bundle) 88136285Sbrian{ 88236285Sbrian struct datalink *dl; 88336285Sbrian 88436285Sbrian /* 88536285Sbrian * Clean up the interface. We don't need to timer_Stop()s, mp_Down(), 88636285Sbrian * ipcp_CleanInterface() and bundle_DownInterface() unless we're getting 88758038Sbrian * out under exceptional conditions such as a descriptor exception. 88836285Sbrian */ 88936285Sbrian timer_Stop(&bundle->idle.timer); 89038544Sbrian timer_Stop(&bundle->choked.timer); 89136285Sbrian mp_Down(&bundle->ncp.mp); 89236285Sbrian ipcp_CleanInterface(&bundle->ncp.ipcp); 89336285Sbrian bundle_DownInterface(bundle); 89436452Sbrian 89543313Sbrian#ifndef NORADIUS 89643313Sbrian /* Tell the radius server the bad news */ 89743313Sbrian radius_Destroy(&bundle->radius); 89843313Sbrian#endif 89943313Sbrian 90036285Sbrian /* Again, these are all DATALINK_CLOSED unless we're abending */ 90136285Sbrian dl = bundle->links; 90236285Sbrian while (dl) 90336285Sbrian dl = datalink_Destroy(dl); 90436285Sbrian 90550867Sbrian ipcp_Destroy(&bundle->ncp.ipcp); 90650867Sbrian 90736452Sbrian close(bundle->dev.fd); 90836452Sbrian bundle_UnlockTun(bundle); 90936452Sbrian 91036285Sbrian /* In case we never made PHASE_NETWORK */ 91136285Sbrian bundle_Notify(bundle, EX_ERRDEAD); 91236285Sbrian 91340561Sbrian iface_Destroy(bundle->iface); 91440561Sbrian bundle->iface = NULL; 91536285Sbrian} 91636285Sbrian 91736285Sbrianstruct rtmsg { 91836285Sbrian struct rt_msghdr m_rtm; 91936285Sbrian char m_space[64]; 92036285Sbrian}; 92136285Sbrian 92236285Sbrianint 92336285Sbrianbundle_SetRoute(struct bundle *bundle, int cmd, struct in_addr dst, 92437927Sbrian struct in_addr gateway, struct in_addr mask, int bang, int ssh) 92536285Sbrian{ 92636285Sbrian struct rtmsg rtmes; 92736285Sbrian int s, nb, wb; 92836285Sbrian char *cp; 92936285Sbrian const char *cmdstr; 93036285Sbrian struct sockaddr_in rtdata; 93136285Sbrian int result = 1; 93236285Sbrian 93336285Sbrian if (bang) 93436285Sbrian cmdstr = (cmd == RTM_ADD ? "Add!" : "Delete!"); 93536285Sbrian else 93636285Sbrian cmdstr = (cmd == RTM_ADD ? "Add" : "Delete"); 93736285Sbrian s = ID0socket(PF_ROUTE, SOCK_RAW, 0); 93836285Sbrian if (s < 0) { 93936285Sbrian log_Printf(LogERROR, "bundle_SetRoute: socket(): %s\n", strerror(errno)); 94036285Sbrian return result; 94136285Sbrian } 94236285Sbrian memset(&rtmes, '\0', sizeof rtmes); 94336285Sbrian rtmes.m_rtm.rtm_version = RTM_VERSION; 94436285Sbrian rtmes.m_rtm.rtm_type = cmd; 94536285Sbrian rtmes.m_rtm.rtm_addrs = RTA_DST; 94636285Sbrian rtmes.m_rtm.rtm_seq = ++bundle->routing_seq; 94736285Sbrian rtmes.m_rtm.rtm_pid = getpid(); 94836285Sbrian rtmes.m_rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC; 94936285Sbrian 95040665Sbrian if (cmd == RTM_ADD || cmd == RTM_CHANGE) { 95140665Sbrian if (bundle->ncp.ipcp.cfg.sendpipe > 0) { 95240665Sbrian rtmes.m_rtm.rtm_rmx.rmx_sendpipe = bundle->ncp.ipcp.cfg.sendpipe; 95340665Sbrian rtmes.m_rtm.rtm_inits |= RTV_SPIPE; 95440665Sbrian } 95540665Sbrian if (bundle->ncp.ipcp.cfg.recvpipe > 0) { 95640665Sbrian rtmes.m_rtm.rtm_rmx.rmx_recvpipe = bundle->ncp.ipcp.cfg.recvpipe; 95740665Sbrian rtmes.m_rtm.rtm_inits |= RTV_RPIPE; 95840665Sbrian } 95940665Sbrian } 96040665Sbrian 96136285Sbrian memset(&rtdata, '\0', sizeof rtdata); 96236285Sbrian rtdata.sin_len = sizeof rtdata; 96336285Sbrian rtdata.sin_family = AF_INET; 96436285Sbrian rtdata.sin_port = 0; 96536285Sbrian rtdata.sin_addr = dst; 96636285Sbrian 96736285Sbrian cp = rtmes.m_space; 96836285Sbrian memcpy(cp, &rtdata, rtdata.sin_len); 96936285Sbrian cp += rtdata.sin_len; 97036285Sbrian if (cmd == RTM_ADD) { 97136285Sbrian if (gateway.s_addr == INADDR_ANY) { 97242321Sbrian if (!ssh) 97342321Sbrian log_Printf(LogERROR, "bundle_SetRoute: Cannot add a route with" 97442321Sbrian " destination 0.0.0.0\n"); 97540561Sbrian close(s); 97640561Sbrian return result; 97736285Sbrian } else { 97836285Sbrian rtdata.sin_addr = gateway; 97936285Sbrian memcpy(cp, &rtdata, rtdata.sin_len); 98036285Sbrian cp += rtdata.sin_len; 98136285Sbrian rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY; 98236285Sbrian } 98336285Sbrian } 98436285Sbrian 98536285Sbrian if (dst.s_addr == INADDR_ANY) 98636285Sbrian mask.s_addr = INADDR_ANY; 98736285Sbrian 98836285Sbrian if (cmd == RTM_ADD || dst.s_addr == INADDR_ANY) { 98936285Sbrian rtdata.sin_addr = mask; 99036285Sbrian memcpy(cp, &rtdata, rtdata.sin_len); 99136285Sbrian cp += rtdata.sin_len; 99236285Sbrian rtmes.m_rtm.rtm_addrs |= RTA_NETMASK; 99336285Sbrian } 99436285Sbrian 99536285Sbrian nb = cp - (char *) &rtmes; 99636285Sbrian rtmes.m_rtm.rtm_msglen = nb; 99736285Sbrian wb = ID0write(s, &rtmes, nb); 99836285Sbrian if (wb < 0) { 99936285Sbrian log_Printf(LogTCPIP, "bundle_SetRoute failure:\n"); 100036285Sbrian log_Printf(LogTCPIP, "bundle_SetRoute: Cmd = %s\n", cmdstr); 100136285Sbrian log_Printf(LogTCPIP, "bundle_SetRoute: Dst = %s\n", inet_ntoa(dst)); 100253684Sbrian log_Printf(LogTCPIP, "bundle_SetRoute: Gateway = %s\n", 100353684Sbrian inet_ntoa(gateway)); 100436285Sbrian log_Printf(LogTCPIP, "bundle_SetRoute: Mask = %s\n", inet_ntoa(mask)); 100536285Sbrianfailed: 100636285Sbrian if (cmd == RTM_ADD && (rtmes.m_rtm.rtm_errno == EEXIST || 100736285Sbrian (rtmes.m_rtm.rtm_errno == 0 && errno == EEXIST))) { 100836285Sbrian if (!bang) { 100936285Sbrian log_Printf(LogWARN, "Add route failed: %s already exists\n", 101040665Sbrian dst.s_addr == 0 ? "default" : inet_ntoa(dst)); 101136285Sbrian result = 0; /* Don't add to our dynamic list */ 101236285Sbrian } else { 101336285Sbrian rtmes.m_rtm.rtm_type = cmd = RTM_CHANGE; 101436285Sbrian if ((wb = ID0write(s, &rtmes, nb)) < 0) 101536285Sbrian goto failed; 101636285Sbrian } 101736285Sbrian } else if (cmd == RTM_DELETE && 101836285Sbrian (rtmes.m_rtm.rtm_errno == ESRCH || 101936285Sbrian (rtmes.m_rtm.rtm_errno == 0 && errno == ESRCH))) { 102036285Sbrian if (!bang) 102136285Sbrian log_Printf(LogWARN, "Del route failed: %s: Non-existent\n", 102236285Sbrian inet_ntoa(dst)); 102337927Sbrian } else if (rtmes.m_rtm.rtm_errno == 0) { 102437927Sbrian if (!ssh || errno != ENETUNREACH) 102537927Sbrian log_Printf(LogWARN, "%s route failed: %s: errno: %s\n", cmdstr, 102637927Sbrian inet_ntoa(dst), strerror(errno)); 102737927Sbrian } else 102836285Sbrian log_Printf(LogWARN, "%s route failed: %s: %s\n", 102937927Sbrian cmdstr, inet_ntoa(dst), strerror(rtmes.m_rtm.rtm_errno)); 103036285Sbrian } 103136285Sbrian log_Printf(LogDEBUG, "wrote %d: cmd = %s, dst = %x, gateway = %x\n", 103236285Sbrian wb, cmdstr, (unsigned)dst.s_addr, (unsigned)gateway.s_addr); 103336285Sbrian close(s); 103436285Sbrian 103536285Sbrian return result; 103636285Sbrian} 103736285Sbrian 103836285Sbrianvoid 103936285Sbrianbundle_LinkClosed(struct bundle *bundle, struct datalink *dl) 104036285Sbrian{ 104136285Sbrian /* 104236285Sbrian * Our datalink has closed. 104336285Sbrian * CleanDatalinks() (called from DoLoop()) will remove closed 104453830Sbrian * BACKGROUND, FOREGROUND and DIRECT links. 104536285Sbrian * If it's the last data link, enter phase DEAD. 104636285Sbrian * 104736285Sbrian * NOTE: dl may not be in our list (bundle_SendDatalink()) ! 104836285Sbrian */ 104936285Sbrian 105036285Sbrian struct datalink *odl; 105136285Sbrian int other_links; 105236285Sbrian 105338200Sbrian log_SetTtyCommandMode(dl); 105438200Sbrian 105536285Sbrian other_links = 0; 105636285Sbrian for (odl = bundle->links; odl; odl = odl->next) 105736285Sbrian if (odl != dl && odl->state != DATALINK_CLOSED) 105836285Sbrian other_links++; 105936285Sbrian 106036285Sbrian if (!other_links) { 106136465Sbrian if (dl->physical->type != PHYS_AUTO) /* Not in -auto mode */ 106236285Sbrian bundle_DownInterface(bundle); 106337060Sbrian fsm2initial(&bundle->ncp.ipcp.fsm); 106436285Sbrian bundle_NewPhase(bundle, PHASE_DEAD); 106536314Sbrian bundle_StopIdleTimer(bundle); 106649434Sbrian } 106736285Sbrian} 106836285Sbrian 106936285Sbrianvoid 107037955Sbrianbundle_Open(struct bundle *bundle, const char *name, int mask, int force) 107136285Sbrian{ 107236285Sbrian /* 107336285Sbrian * Please open the given datalink, or all if name == NULL 107436285Sbrian */ 107536285Sbrian struct datalink *dl; 107636285Sbrian 107736285Sbrian for (dl = bundle->links; dl; dl = dl->next) 107836285Sbrian if (name == NULL || !strcasecmp(dl->name, name)) { 107937955Sbrian if ((mask & dl->physical->type) && 108037955Sbrian (dl->state == DATALINK_CLOSED || 108137955Sbrian (force && dl->state == DATALINK_OPENING && 108260945Sbrian dl->dial.timer.state == TIMER_RUNNING) || 108360945Sbrian dl->state == DATALINK_READY)) { 108460945Sbrian timer_Stop(&dl->dial.timer); /* We're finished with this */ 108536285Sbrian datalink_Up(dl, 1, 1); 108649434Sbrian if (mask & PHYS_AUTO) 108760945Sbrian break; /* Only one AUTO link at a time */ 108836285Sbrian } 108936285Sbrian if (name != NULL) 109036285Sbrian break; 109136285Sbrian } 109236285Sbrian} 109336285Sbrian 109436285Sbrianstruct datalink * 109536285Sbrianbundle2datalink(struct bundle *bundle, const char *name) 109636285Sbrian{ 109736285Sbrian struct datalink *dl; 109836285Sbrian 109936285Sbrian if (name != NULL) { 110036285Sbrian for (dl = bundle->links; dl; dl = dl->next) 110136285Sbrian if (!strcasecmp(dl->name, name)) 110236285Sbrian return dl; 110336285Sbrian } else if (bundle->links && !bundle->links->next) 110436285Sbrian return bundle->links; 110536285Sbrian 110636285Sbrian return NULL; 110736285Sbrian} 110836285Sbrian 110936285Sbrianint 111036285Sbrianbundle_ShowLinks(struct cmdargs const *arg) 111136285Sbrian{ 111236285Sbrian struct datalink *dl; 111349434Sbrian struct pppThroughput *t; 111449434Sbrian int secs; 111536285Sbrian 111636285Sbrian for (dl = arg->bundle->links; dl; dl = dl->next) { 111736316Sbrian prompt_Printf(arg->prompt, "Name: %s [%s, %s]", 111836316Sbrian dl->name, mode2Nam(dl->physical->type), datalink_State(dl)); 111936285Sbrian if (dl->physical->link.throughput.rolling && dl->state == DATALINK_OPEN) 112049582Sbrian prompt_Printf(arg->prompt, " bandwidth %d, %llu bps (%llu bytes/sec)", 112149434Sbrian dl->mp.bandwidth ? dl->mp.bandwidth : 112249434Sbrian physical_GetSpeed(dl->physical), 112349434Sbrian dl->physical->link.throughput.OctetsPerSecond * 8, 112436285Sbrian dl->physical->link.throughput.OctetsPerSecond); 112536285Sbrian prompt_Printf(arg->prompt, "\n"); 112636285Sbrian } 112736285Sbrian 112849434Sbrian t = &arg->bundle->ncp.mp.link.throughput; 112949434Sbrian secs = t->downtime ? 0 : throughput_uptime(t); 113049434Sbrian if (secs > t->SamplePeriod) 113149434Sbrian secs = t->SamplePeriod; 113249434Sbrian if (secs) 113349582Sbrian prompt_Printf(arg->prompt, "Currently averaging %llu bps (%llu bytes/sec)" 113449434Sbrian " over the last %d secs\n", t->OctetsPerSecond * 8, 113549434Sbrian t->OctetsPerSecond, secs); 113649434Sbrian 113736285Sbrian return 0; 113836285Sbrian} 113936285Sbrian 114036285Sbrianstatic const char * 114136285Sbrianoptval(struct bundle *bundle, int bit) 114236285Sbrian{ 114336285Sbrian return (bundle->cfg.opt & bit) ? "enabled" : "disabled"; 114436285Sbrian} 114536285Sbrian 114636285Sbrianint 114736285Sbrianbundle_ShowStatus(struct cmdargs const *arg) 114836285Sbrian{ 114936285Sbrian int remaining; 115036285Sbrian 115136285Sbrian prompt_Printf(arg->prompt, "Phase %s\n", bundle_PhaseName(arg->bundle)); 115236285Sbrian prompt_Printf(arg->prompt, " Device: %s\n", arg->bundle->dev.Name); 115349978Sbrian prompt_Printf(arg->prompt, " Interface: %s @ %lubps", 115449434Sbrian arg->bundle->iface->name, arg->bundle->bandwidth); 115536285Sbrian 115649978Sbrian if (arg->bundle->upat) { 115749978Sbrian int secs = time(NULL) - arg->bundle->upat; 115849978Sbrian 115949978Sbrian prompt_Printf(arg->prompt, ", up time %d:%02d:%02d", secs / 3600, 116049978Sbrian (secs / 60) % 60, secs % 60); 116149978Sbrian } 116261800Sbrian prompt_Printf(arg->prompt, "\n Queued: %lu of %u\n", 116361534Sbrian ip_QueueLen(&arg->bundle->ncp.ipcp), arg->bundle->cfg.ifqueue); 116449978Sbrian 116561534Sbrian prompt_Printf(arg->prompt, "\nDefaults:\n"); 116636285Sbrian prompt_Printf(arg->prompt, " Label: %s\n", arg->bundle->cfg.label); 116736285Sbrian prompt_Printf(arg->prompt, " Auth name: %s\n", 116836285Sbrian arg->bundle->cfg.auth.name); 116936285Sbrian 117038544Sbrian prompt_Printf(arg->prompt, " Choked Timer: %ds\n", 117138544Sbrian arg->bundle->cfg.choked.timeout); 117243313Sbrian 117343313Sbrian#ifndef NORADIUS 117443313Sbrian radius_Show(&arg->bundle->radius, arg->prompt); 117543313Sbrian#endif 117643313Sbrian 117736285Sbrian prompt_Printf(arg->prompt, " Idle Timer: "); 117849978Sbrian if (arg->bundle->cfg.idle.timeout) { 117949978Sbrian prompt_Printf(arg->prompt, "%ds", arg->bundle->cfg.idle.timeout); 118049978Sbrian if (arg->bundle->cfg.idle.min_timeout) 118149978Sbrian prompt_Printf(arg->prompt, ", min %ds", 118249978Sbrian arg->bundle->cfg.idle.min_timeout); 118336285Sbrian remaining = bundle_RemainingIdleTime(arg->bundle); 118436285Sbrian if (remaining != -1) 118536285Sbrian prompt_Printf(arg->prompt, " (%ds remaining)", remaining); 118636285Sbrian prompt_Printf(arg->prompt, "\n"); 118736285Sbrian } else 118836285Sbrian prompt_Printf(arg->prompt, "disabled\n"); 118936285Sbrian prompt_Printf(arg->prompt, " MTU: "); 119036285Sbrian if (arg->bundle->cfg.mtu) 119136285Sbrian prompt_Printf(arg->prompt, "%d\n", arg->bundle->cfg.mtu); 119236285Sbrian else 119336285Sbrian prompt_Printf(arg->prompt, "unspecified\n"); 119436285Sbrian 119540665Sbrian prompt_Printf(arg->prompt, " sendpipe: "); 119640665Sbrian if (arg->bundle->ncp.ipcp.cfg.sendpipe > 0) 119749434Sbrian prompt_Printf(arg->prompt, "%-20ld", arg->bundle->ncp.ipcp.cfg.sendpipe); 119840665Sbrian else 119949434Sbrian prompt_Printf(arg->prompt, "unspecified "); 120040665Sbrian prompt_Printf(arg->prompt, " recvpipe: "); 120140665Sbrian if (arg->bundle->ncp.ipcp.cfg.recvpipe > 0) 120240665Sbrian prompt_Printf(arg->prompt, "%ld\n", arg->bundle->ncp.ipcp.cfg.recvpipe); 120340665Sbrian else 120440665Sbrian prompt_Printf(arg->prompt, "unspecified\n"); 120540665Sbrian 120649434Sbrian prompt_Printf(arg->prompt, " Sticky Routes: %-20.20s", 120736285Sbrian optval(arg->bundle, OPT_SROUTES)); 120836285Sbrian prompt_Printf(arg->prompt, " ID check: %s\n", 120936285Sbrian optval(arg->bundle, OPT_IDCHECK)); 121049434Sbrian prompt_Printf(arg->prompt, " Keep-Session: %-20.20s", 121147689Sbrian optval(arg->bundle, OPT_KEEPSESSION)); 121236285Sbrian prompt_Printf(arg->prompt, " Loopback: %s\n", 121336285Sbrian optval(arg->bundle, OPT_LOOPBACK)); 121449434Sbrian prompt_Printf(arg->prompt, " PasswdAuth: %-20.20s", 121536285Sbrian optval(arg->bundle, OPT_PASSWDAUTH)); 121636285Sbrian prompt_Printf(arg->prompt, " Proxy: %s\n", 121736285Sbrian optval(arg->bundle, OPT_PROXY)); 121849434Sbrian prompt_Printf(arg->prompt, " Proxyall: %-20.20s", 121940665Sbrian optval(arg->bundle, OPT_PROXYALL)); 122036285Sbrian prompt_Printf(arg->prompt, " Throughput: %s\n", 122136285Sbrian optval(arg->bundle, OPT_THROUGHPUT)); 122249434Sbrian prompt_Printf(arg->prompt, " Utmp Logging: %-20.20s", 122336285Sbrian optval(arg->bundle, OPT_UTMP)); 122440561Sbrian prompt_Printf(arg->prompt, " Iface-Alias: %s\n", 122540561Sbrian optval(arg->bundle, OPT_IFACEALIAS)); 122636285Sbrian 122736285Sbrian return 0; 122836285Sbrian} 122936285Sbrian 123036285Sbrianstatic void 123136285Sbrianbundle_IdleTimeout(void *v) 123236285Sbrian{ 123336285Sbrian struct bundle *bundle = (struct bundle *)v; 123436285Sbrian 123559084Sbrian log_Printf(LogPHASE, "Idle timer expired\n"); 123636285Sbrian bundle_StopIdleTimer(bundle); 123737007Sbrian bundle_Close(bundle, NULL, CLOSE_STAYDOWN); 123836285Sbrian} 123936285Sbrian 124036285Sbrian/* 124136285Sbrian * Start Idle timer. If timeout is reached, we call bundle_Close() to 124236285Sbrian * close LCP and link. 124336285Sbrian */ 124436285Sbrianvoid 124536285Sbrianbundle_StartIdleTimer(struct bundle *bundle) 124636285Sbrian{ 124736285Sbrian timer_Stop(&bundle->idle.timer); 124836928Sbrian if ((bundle->phys_type.open & (PHYS_DEDICATED|PHYS_DDIAL)) != 124949978Sbrian bundle->phys_type.open && bundle->cfg.idle.timeout) { 125049978Sbrian int secs; 125149978Sbrian 125249978Sbrian secs = bundle->cfg.idle.timeout; 125349978Sbrian if (bundle->cfg.idle.min_timeout > secs && bundle->upat) { 125449978Sbrian int up = time(NULL) - bundle->upat; 125549978Sbrian 125649978Sbrian if ((long long)bundle->cfg.idle.min_timeout - up > (long long)secs) 125749978Sbrian secs = bundle->cfg.idle.min_timeout - up; 125849978Sbrian } 125936285Sbrian bundle->idle.timer.func = bundle_IdleTimeout; 126036285Sbrian bundle->idle.timer.name = "idle"; 126149978Sbrian bundle->idle.timer.load = secs * SECTICKS; 126236285Sbrian bundle->idle.timer.arg = bundle; 126336285Sbrian timer_Start(&bundle->idle.timer); 126449978Sbrian bundle->idle.done = time(NULL) + secs; 126536285Sbrian } 126636285Sbrian} 126736285Sbrian 126836285Sbrianvoid 126949978Sbrianbundle_SetIdleTimer(struct bundle *bundle, int timeout, int min_timeout) 127036285Sbrian{ 127149978Sbrian bundle->cfg.idle.timeout = timeout; 127249978Sbrian if (min_timeout >= 0) 127349978Sbrian bundle->cfg.idle.min_timeout = min_timeout; 127436285Sbrian if (bundle_LinkIsUp(bundle)) 127536285Sbrian bundle_StartIdleTimer(bundle); 127636285Sbrian} 127736285Sbrian 127836285Sbrianvoid 127936285Sbrianbundle_StopIdleTimer(struct bundle *bundle) 128036285Sbrian{ 128136285Sbrian timer_Stop(&bundle->idle.timer); 128236285Sbrian bundle->idle.done = 0; 128336285Sbrian} 128436285Sbrian 128536285Sbrianstatic int 128636285Sbrianbundle_RemainingIdleTime(struct bundle *bundle) 128736285Sbrian{ 128836285Sbrian if (bundle->idle.done) 128936285Sbrian return bundle->idle.done - time(NULL); 129036285Sbrian return -1; 129136285Sbrian} 129236285Sbrian 129336285Sbrianint 129436285Sbrianbundle_IsDead(struct bundle *bundle) 129536285Sbrian{ 129636285Sbrian return !bundle->links || (bundle->phase == PHASE_DEAD && bundle->CleaningUp); 129736285Sbrian} 129836285Sbrian 129936285Sbrianstatic struct datalink * 130036285Sbrianbundle_DatalinkLinkout(struct bundle *bundle, struct datalink *dl) 130136285Sbrian{ 130236285Sbrian struct datalink **dlp; 130336285Sbrian 130436314Sbrian for (dlp = &bundle->links; *dlp; dlp = &(*dlp)->next) 130536314Sbrian if (*dlp == dl) { 130636314Sbrian *dlp = dl->next; 130736314Sbrian dl->next = NULL; 130836314Sbrian bundle_LinksRemoved(bundle); 130936314Sbrian return dl; 131036314Sbrian } 131136285Sbrian 131236285Sbrian return NULL; 131336285Sbrian} 131436285Sbrian 131536285Sbrianstatic void 131636285Sbrianbundle_DatalinkLinkin(struct bundle *bundle, struct datalink *dl) 131736285Sbrian{ 131836285Sbrian struct datalink **dlp = &bundle->links; 131936285Sbrian 132036285Sbrian while (*dlp) 132136285Sbrian dlp = &(*dlp)->next; 132236285Sbrian 132336285Sbrian *dlp = dl; 132436285Sbrian dl->next = NULL; 132536285Sbrian 132636285Sbrian bundle_LinkAdded(bundle, dl); 132749434Sbrian mp_CheckAutoloadTimer(&bundle->ncp.mp); 132836285Sbrian} 132936285Sbrian 133036285Sbrianvoid 133136285Sbrianbundle_CleanDatalinks(struct bundle *bundle) 133236285Sbrian{ 133336285Sbrian struct datalink **dlp = &bundle->links; 133436285Sbrian int found = 0; 133536285Sbrian 133636285Sbrian while (*dlp) 133736285Sbrian if ((*dlp)->state == DATALINK_CLOSED && 133853830Sbrian (*dlp)->physical->type & 133953830Sbrian (PHYS_DIRECT|PHYS_BACKGROUND|PHYS_FOREGROUND)) { 134036285Sbrian *dlp = datalink_Destroy(*dlp); 134136285Sbrian found++; 134236285Sbrian } else 134336285Sbrian dlp = &(*dlp)->next; 134436285Sbrian 134536285Sbrian if (found) 134636285Sbrian bundle_LinksRemoved(bundle); 134736285Sbrian} 134836285Sbrian 134936285Sbrianint 135036285Sbrianbundle_DatalinkClone(struct bundle *bundle, struct datalink *dl, 135136285Sbrian const char *name) 135236285Sbrian{ 135336285Sbrian if (bundle2datalink(bundle, name)) { 135436285Sbrian log_Printf(LogWARN, "Clone: %s: name already exists\n", name); 135536285Sbrian return 0; 135636285Sbrian } 135736285Sbrian 135836285Sbrian bundle_DatalinkLinkin(bundle, datalink_Clone(dl, name)); 135936285Sbrian return 1; 136036285Sbrian} 136136285Sbrian 136236285Sbrianvoid 136336285Sbrianbundle_DatalinkRemove(struct bundle *bundle, struct datalink *dl) 136436285Sbrian{ 136536285Sbrian dl = bundle_DatalinkLinkout(bundle, dl); 136636285Sbrian if (dl) 136736285Sbrian datalink_Destroy(dl); 136836285Sbrian} 136936285Sbrian 137036285Sbrianvoid 137136285Sbrianbundle_SetLabel(struct bundle *bundle, const char *label) 137236285Sbrian{ 137336285Sbrian if (label) 137436285Sbrian strncpy(bundle->cfg.label, label, sizeof bundle->cfg.label - 1); 137536285Sbrian else 137636285Sbrian *bundle->cfg.label = '\0'; 137736285Sbrian} 137836285Sbrian 137936285Sbrianconst char * 138036285Sbrianbundle_GetLabel(struct bundle *bundle) 138136285Sbrian{ 138236285Sbrian return *bundle->cfg.label ? bundle->cfg.label : NULL; 138336285Sbrian} 138436285Sbrian 138553684Sbrianint 138653684Sbrianbundle_LinkSize() 138753684Sbrian{ 138853684Sbrian struct iovec iov[SCATTER_SEGMENTS]; 138953684Sbrian int niov, expect, f; 139053684Sbrian 139153684Sbrian iov[0].iov_len = strlen(Version) + 1; 139253684Sbrian iov[0].iov_base = NULL; 139353684Sbrian niov = 1; 139453684Sbrian if (datalink2iov(NULL, iov, &niov, SCATTER_SEGMENTS, NULL, NULL) == -1) { 139553684Sbrian log_Printf(LogERROR, "Cannot determine space required for link\n"); 139653684Sbrian return 0; 139753684Sbrian } 139853684Sbrian 139953684Sbrian for (f = expect = 0; f < niov; f++) 140053684Sbrian expect += iov[f].iov_len; 140153684Sbrian 140253684Sbrian return expect; 140353684Sbrian} 140453684Sbrian 140536285Sbrianvoid 140653684Sbrianbundle_ReceiveDatalink(struct bundle *bundle, int s) 140736285Sbrian{ 140853684Sbrian char cmsgbuf[sizeof(struct cmsghdr) + sizeof(int) * SEND_MAXFD]; 140953970Sbrian int niov, expect, f, *fd, nfd, onfd, got; 141053684Sbrian struct iovec iov[SCATTER_SEGMENTS]; 141152942Sbrian struct cmsghdr *cmsg; 141236285Sbrian struct msghdr msg; 141336285Sbrian struct datalink *dl; 141436450Sbrian pid_t pid; 141536285Sbrian 141636285Sbrian log_Printf(LogPHASE, "Receiving datalink\n"); 141736285Sbrian 141853684Sbrian /* 141953684Sbrian * Create our scatter/gather array - passing NULL gets the space 142053684Sbrian * allocation requirement rather than actually flattening the 142153684Sbrian * structures. 142253684Sbrian */ 142353684Sbrian iov[0].iov_len = strlen(Version) + 1; 142453684Sbrian iov[0].iov_base = NULL; 142536285Sbrian niov = 1; 142653684Sbrian if (datalink2iov(NULL, iov, &niov, SCATTER_SEGMENTS, NULL, NULL) == -1) { 142753684Sbrian log_Printf(LogERROR, "Cannot determine space required for link\n"); 142836285Sbrian return; 142936345Sbrian } 143036285Sbrian 143153684Sbrian /* Allocate the scatter/gather array for recvmsg() */ 143253684Sbrian for (f = expect = 0; f < niov; f++) { 143353684Sbrian if ((iov[f].iov_base = malloc(iov[f].iov_len)) == NULL) { 143453684Sbrian log_Printf(LogERROR, "Cannot allocate space to receive link\n"); 143553684Sbrian return; 143653684Sbrian } 143753970Sbrian if (f) 143853970Sbrian expect += iov[f].iov_len; 143953684Sbrian } 144036285Sbrian 144136285Sbrian /* Set up our message */ 144253684Sbrian cmsg = (struct cmsghdr *)cmsgbuf; 144353684Sbrian cmsg->cmsg_len = sizeof cmsgbuf; 144453684Sbrian cmsg->cmsg_level = SOL_SOCKET; 144553684Sbrian cmsg->cmsg_type = 0; 144636285Sbrian 144736285Sbrian memset(&msg, '\0', sizeof msg); 144853684Sbrian msg.msg_name = NULL; 144953684Sbrian msg.msg_namelen = 0; 145036285Sbrian msg.msg_iov = iov; 145153970Sbrian msg.msg_iovlen = 1; /* Only send the version at the first pass */ 145236285Sbrian msg.msg_control = cmsgbuf; 145336285Sbrian msg.msg_controllen = sizeof cmsgbuf; 145436285Sbrian 145558042Sbrian log_Printf(LogDEBUG, "Expecting %u scatter/gather bytes\n", 145658042Sbrian (unsigned)iov[0].iov_len); 145753684Sbrian 145853970Sbrian if ((got = recvmsg(s, &msg, MSG_WAITALL)) != iov[0].iov_len) { 145953970Sbrian if (got == -1) 146036285Sbrian log_Printf(LogERROR, "Failed recvmsg: %s\n", strerror(errno)); 146136285Sbrian else 146258042Sbrian log_Printf(LogERROR, "Failed recvmsg: Got %d, not %u\n", 146358042Sbrian got, (unsigned)iov[0].iov_len); 146436285Sbrian while (niov--) 146536285Sbrian free(iov[niov].iov_base); 146636285Sbrian return; 146736285Sbrian } 146836285Sbrian 146953684Sbrian if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 147053684Sbrian log_Printf(LogERROR, "Recvmsg: no descriptors received !\n"); 147153684Sbrian while (niov--) 147253684Sbrian free(iov[niov].iov_base); 147353684Sbrian return; 147452942Sbrian } 147552942Sbrian 147653684Sbrian fd = (int *)(cmsg + 1); 147753684Sbrian nfd = (cmsg->cmsg_len - sizeof *cmsg) / sizeof(int); 147853684Sbrian 147953684Sbrian if (nfd < 2) { 148058038Sbrian log_Printf(LogERROR, "Recvmsg: %d descriptor%s received (too few) !\n", 148153684Sbrian nfd, nfd == 1 ? "" : "s"); 148253684Sbrian while (nfd--) 148353684Sbrian close(fd[nfd]); 148437054Sbrian while (niov--) 148537054Sbrian free(iov[niov].iov_base); 148637054Sbrian return; 148736345Sbrian } 148836285Sbrian 148952942Sbrian /* 149053970Sbrian * We've successfully received two or more open file descriptors 149153970Sbrian * through our socket, plus a version string. Make sure it's the 149253970Sbrian * correct version, and drop the connection if it's not. 149352942Sbrian */ 149436285Sbrian if (strncmp(Version, iov[0].iov_base, iov[0].iov_len)) { 149536285Sbrian log_Printf(LogWARN, "Cannot receive datalink, incorrect version" 149636285Sbrian " (\"%.*s\", not \"%s\")\n", (int)iov[0].iov_len, 149737188Sbrian (char *)iov[0].iov_base, Version); 149853684Sbrian while (nfd--) 149953684Sbrian close(fd[nfd]); 150036285Sbrian while (niov--) 150136285Sbrian free(iov[niov].iov_base); 150236285Sbrian return; 150336285Sbrian } 150436285Sbrian 150553970Sbrian /* 150653970Sbrian * Everything looks good. Send the other side our process id so that 150753970Sbrian * they can transfer lock ownership, and wait for them to send the 150853970Sbrian * actual link data. 150953970Sbrian */ 151053970Sbrian pid = getpid(); 151153970Sbrian if ((got = write(fd[1], &pid, sizeof pid)) != sizeof pid) { 151253970Sbrian if (got == -1) 151353970Sbrian log_Printf(LogERROR, "Failed write: %s\n", strerror(errno)); 151453970Sbrian else 151553970Sbrian log_Printf(LogERROR, "Failed write: Got %d, not %d\n", got, 151653970Sbrian (int)(sizeof pid)); 151753970Sbrian while (nfd--) 151853970Sbrian close(fd[nfd]); 151953970Sbrian while (niov--) 152053970Sbrian free(iov[niov].iov_base); 152153970Sbrian return; 152253970Sbrian } 152353970Sbrian 152453970Sbrian if ((got = readv(fd[1], iov + 1, niov - 1)) != expect) { 152553970Sbrian if (got == -1) 152653970Sbrian log_Printf(LogERROR, "Failed write: %s\n", strerror(errno)); 152753970Sbrian else 152853970Sbrian log_Printf(LogERROR, "Failed write: Got %d, not %d\n", got, expect); 152953970Sbrian while (nfd--) 153053970Sbrian close(fd[nfd]); 153153970Sbrian while (niov--) 153253970Sbrian free(iov[niov].iov_base); 153353970Sbrian return; 153453970Sbrian } 153553970Sbrian close(fd[1]); 153653970Sbrian 153753684Sbrian onfd = nfd; /* We've got this many in our array */ 153858038Sbrian nfd -= 2; /* Don't include p->fd and our reply descriptor */ 153953684Sbrian niov = 1; /* Skip the version id */ 154052942Sbrian dl = iov2datalink(bundle, iov, &niov, sizeof iov / sizeof *iov, fd[0], 154153684Sbrian fd + 2, &nfd); 154236285Sbrian if (dl) { 154353684Sbrian 154452942Sbrian if (nfd) { 154552942Sbrian log_Printf(LogERROR, "bundle_ReceiveDatalink: Failed to handle %d " 154653684Sbrian "auxiliary file descriptors (%d remain)\n", onfd, nfd); 154752942Sbrian datalink_Destroy(dl); 154852942Sbrian while (nfd--) 154952942Sbrian close(fd[onfd--]); 155053684Sbrian close(fd[0]); 155152942Sbrian } else { 155252942Sbrian bundle_DatalinkLinkin(bundle, dl); 155352942Sbrian datalink_AuthOk(dl); 155452942Sbrian bundle_CalculateBandwidth(dl->bundle); 155552942Sbrian } 155652942Sbrian } else { 155752942Sbrian while (nfd--) 155852942Sbrian close(fd[onfd--]); 155952942Sbrian close(fd[0]); 156053684Sbrian close(fd[1]); 156152942Sbrian } 156236285Sbrian 156336285Sbrian free(iov[0].iov_base); 156436285Sbrian} 156536285Sbrian 156636285Sbrianvoid 156736285Sbrianbundle_SendDatalink(struct datalink *dl, int s, struct sockaddr_un *sun) 156836285Sbrian{ 156953684Sbrian char cmsgbuf[sizeof(struct cmsghdr) + sizeof(int) * SEND_MAXFD]; 157053684Sbrian const char *constlock; 157153684Sbrian char *lock; 157252942Sbrian struct cmsghdr *cmsg; 157336285Sbrian struct msghdr msg; 157436285Sbrian struct iovec iov[SCATTER_SEGMENTS]; 157553684Sbrian int niov, f, expect, newsid, fd[SEND_MAXFD], nfd, reply[2], got; 157636450Sbrian pid_t newpid; 157736285Sbrian 157836285Sbrian log_Printf(LogPHASE, "Transmitting datalink %s\n", dl->name); 157936285Sbrian 158053684Sbrian /* Record the base device name for a lock transfer later */ 158153684Sbrian constlock = physical_LockedDevice(dl->physical); 158253684Sbrian if (constlock) { 158353684Sbrian lock = alloca(strlen(constlock) + 1); 158453684Sbrian strcpy(lock, constlock); 158553684Sbrian } else 158653684Sbrian lock = NULL; 158753684Sbrian 158836314Sbrian bundle_LinkClosed(dl->bundle, dl); 158936285Sbrian bundle_DatalinkLinkout(dl->bundle, dl); 159036285Sbrian 159136285Sbrian /* Build our scatter/gather array */ 159236285Sbrian iov[0].iov_len = strlen(Version) + 1; 159336285Sbrian iov[0].iov_base = strdup(Version); 159436285Sbrian niov = 1; 159552942Sbrian nfd = 0; 159636285Sbrian 159753684Sbrian fd[0] = datalink2iov(dl, iov, &niov, SCATTER_SEGMENTS, fd + 2, &nfd); 159836285Sbrian 159953684Sbrian if (fd[0] != -1 && socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, reply) != -1) { 160053684Sbrian /* 160153684Sbrian * fd[1] is used to get the peer process id back, then to confirm that 160253684Sbrian * we've transferred any device locks to that process id. 160353684Sbrian */ 160453684Sbrian fd[1] = reply[1]; 160552942Sbrian 160653684Sbrian nfd += 2; /* Include fd[0] and fd[1] */ 160736345Sbrian memset(&msg, '\0', sizeof msg); 160836285Sbrian 160953684Sbrian msg.msg_name = NULL; 161053684Sbrian msg.msg_namelen = 0; 161153970Sbrian /* 161253970Sbrian * Only send the version to start... We used to send the whole lot, but 161353970Sbrian * this caused problems with our RECVBUF size as a single link is about 161453970Sbrian * 22k ! This way, we should bump into no limits. 161553970Sbrian */ 161653970Sbrian msg.msg_iovlen = 1; 161736285Sbrian msg.msg_iov = iov; 161853684Sbrian msg.msg_control = cmsgbuf; 161953684Sbrian msg.msg_controllen = sizeof *cmsg + sizeof(int) * nfd; 162053684Sbrian msg.msg_flags = 0; 162136285Sbrian 162253684Sbrian cmsg = (struct cmsghdr *)cmsgbuf; 162353684Sbrian cmsg->cmsg_len = msg.msg_controllen; 162453684Sbrian cmsg->cmsg_level = SOL_SOCKET; 162553684Sbrian cmsg->cmsg_type = SCM_RIGHTS; 162652942Sbrian 162753684Sbrian for (f = 0; f < nfd; f++) 162853684Sbrian *((int *)(cmsg + 1) + f) = fd[f]; 162936345Sbrian 163053970Sbrian for (f = 1, expect = 0; f < niov; f++) 163136285Sbrian expect += iov[f].iov_len; 163236285Sbrian 163353970Sbrian if (setsockopt(reply[0], SOL_SOCKET, SO_SNDBUF, &expect, sizeof(int)) == -1) 163453970Sbrian log_Printf(LogERROR, "setsockopt(SO_RCVBUF, %d): %s\n", expect, 163553970Sbrian strerror(errno)); 163653970Sbrian if (setsockopt(reply[1], SOL_SOCKET, SO_RCVBUF, &expect, sizeof(int)) == -1) 163753970Sbrian log_Printf(LogERROR, "setsockopt(SO_RCVBUF, %d): %s\n", expect, 163853970Sbrian strerror(errno)); 163953970Sbrian 164058042Sbrian log_Printf(LogDEBUG, "Sending %d descriptor%s and %u bytes in scatter" 164158042Sbrian "/gather array\n", nfd, nfd == 1 ? "" : "s", 164258042Sbrian (unsigned)iov[0].iov_len); 164336285Sbrian 164453684Sbrian if ((got = sendmsg(s, &msg, 0)) == -1) 164553684Sbrian log_Printf(LogERROR, "Failed sendmsg: %s: %s\n", 164653684Sbrian sun->sun_path, strerror(errno)); 164753970Sbrian else if (got != iov[0].iov_len) 164858042Sbrian log_Printf(LogERROR, "%s: Failed initial sendmsg: Only sent %d of %u\n", 164958042Sbrian sun->sun_path, got, (unsigned)iov[0].iov_len); 165053684Sbrian else { 165158038Sbrian /* We must get the ACK before closing the descriptor ! */ 165253684Sbrian int res; 165336345Sbrian 165453970Sbrian if ((got = read(reply[0], &newpid, sizeof newpid)) == sizeof newpid) { 165553970Sbrian log_Printf(LogDEBUG, "Received confirmation from pid %d\n", 165653970Sbrian (int)newpid); 165753970Sbrian if (lock && (res = ID0uu_lock_txfr(lock, newpid)) != UU_LOCK_OK) 165859084Sbrian log_Printf(LogERROR, "uu_lock_txfr: %s\n", uu_lockerr(res)); 165953684Sbrian 166053970Sbrian log_Printf(LogDEBUG, "Transmitting link (%d bytes)\n", expect); 166153970Sbrian if ((got = writev(reply[0], iov + 1, niov - 1)) != expect) { 166253970Sbrian if (got == -1) 166353970Sbrian log_Printf(LogERROR, "%s: Failed writev: %s\n", 166453970Sbrian sun->sun_path, strerror(errno)); 166553970Sbrian else 166653970Sbrian log_Printf(LogERROR, "%s: Failed writev: Wrote %d of %d\n", 166753970Sbrian sun->sun_path, got, expect); 166853970Sbrian } 166953970Sbrian } else if (got == -1) 167053970Sbrian log_Printf(LogERROR, "%s: Failed socketpair read: %s\n", 167153970Sbrian sun->sun_path, strerror(errno)); 167253970Sbrian else 167353970Sbrian log_Printf(LogERROR, "%s: Failed socketpair read: Got %d of %d\n", 167453970Sbrian sun->sun_path, got, (int)(sizeof newpid)); 167553684Sbrian } 167653684Sbrian 167753684Sbrian close(reply[0]); 167853684Sbrian close(reply[1]); 167953684Sbrian 168047689Sbrian newsid = Enabled(dl->bundle, OPT_KEEPSESSION) || 168152942Sbrian tcgetpgrp(fd[0]) == getpgrp(); 168252942Sbrian while (nfd) 168352942Sbrian close(fd[--nfd]); 168436452Sbrian if (newsid) 168553684Sbrian bundle_setsid(dl->bundle, got != -1); 168636285Sbrian } 168736450Sbrian close(s); 168836285Sbrian 168936285Sbrian while (niov--) 169036285Sbrian free(iov[niov].iov_base); 169136285Sbrian} 169236285Sbrian 169336285Sbrianint 169436285Sbrianbundle_RenameDatalink(struct bundle *bundle, struct datalink *ndl, 169536285Sbrian const char *name) 169636285Sbrian{ 169736285Sbrian struct datalink *dl; 169836285Sbrian 169936285Sbrian if (!strcasecmp(ndl->name, name)) 170036285Sbrian return 1; 170136285Sbrian 170236285Sbrian for (dl = bundle->links; dl; dl = dl->next) 170336285Sbrian if (!strcasecmp(dl->name, name)) 170436285Sbrian return 0; 170536285Sbrian 170636285Sbrian datalink_Rename(ndl, name); 170736285Sbrian return 1; 170836285Sbrian} 170936285Sbrian 171036285Sbrianint 171136285Sbrianbundle_SetMode(struct bundle *bundle, struct datalink *dl, int mode) 171236285Sbrian{ 171336285Sbrian int omode; 171436285Sbrian 171536285Sbrian omode = dl->physical->type; 171636285Sbrian if (omode == mode) 171736285Sbrian return 1; 171836285Sbrian 171936928Sbrian if (mode == PHYS_AUTO && !(bundle->phys_type.all & PHYS_AUTO)) 172036928Sbrian /* First auto link */ 172136285Sbrian if (bundle->ncp.ipcp.peer_ip.s_addr == INADDR_ANY) { 172236928Sbrian log_Printf(LogWARN, "You must `set ifaddr' or `open' before" 172336928Sbrian " changing mode to %s\n", mode2Nam(mode)); 172436285Sbrian return 0; 172536285Sbrian } 172636285Sbrian 172736285Sbrian if (!datalink_SetMode(dl, mode)) 172836285Sbrian return 0; 172936285Sbrian 173036928Sbrian if (mode == PHYS_AUTO && !(bundle->phys_type.all & PHYS_AUTO) && 173136928Sbrian bundle->phase != PHASE_NETWORK) 173236928Sbrian /* First auto link, we need an interface */ 173336285Sbrian ipcp_InterfaceUp(&bundle->ncp.ipcp); 173436285Sbrian 173549434Sbrian /* Regenerate phys_type and adjust idle timer */ 173636285Sbrian bundle_LinksRemoved(bundle); 173736285Sbrian 173836285Sbrian return 1; 173936285Sbrian} 174036452Sbrian 174136452Sbrianvoid 174236452Sbrianbundle_setsid(struct bundle *bundle, int holdsession) 174336452Sbrian{ 174436452Sbrian /* 174536452Sbrian * Lose the current session. This means getting rid of our pid 174636452Sbrian * too so that the tty device will really go away, and any getty 174736452Sbrian * etc will be allowed to restart. 174836452Sbrian */ 174936452Sbrian pid_t pid, orig; 175036452Sbrian int fds[2]; 175136452Sbrian char done; 175236452Sbrian struct datalink *dl; 175336452Sbrian 175455066Sbrian if (!holdsession && bundle_IsDead(bundle)) { 175555066Sbrian /* 175655066Sbrian * No need to lose our session after all... we're going away anyway 175755066Sbrian * 175855066Sbrian * We should really stop the timer and pause if holdsession is set and 175955066Sbrian * the bundle's dead, but that leaves other resources lying about :-( 176055066Sbrian */ 176155066Sbrian return; 176255066Sbrian } 176355066Sbrian 176436452Sbrian orig = getpid(); 176536452Sbrian if (pipe(fds) == -1) { 176636452Sbrian log_Printf(LogERROR, "pipe: %s\n", strerror(errno)); 176736452Sbrian return; 176836452Sbrian } 176936452Sbrian switch ((pid = fork())) { 177036452Sbrian case -1: 177136452Sbrian log_Printf(LogERROR, "fork: %s\n", strerror(errno)); 177236452Sbrian close(fds[0]); 177336452Sbrian close(fds[1]); 177436452Sbrian return; 177536452Sbrian case 0: 177644541Sbrian close(fds[1]); 177744541Sbrian read(fds[0], &done, 1); /* uu_locks are mine ! */ 177836452Sbrian close(fds[0]); 177936452Sbrian if (pipe(fds) == -1) { 178036452Sbrian log_Printf(LogERROR, "pipe(2): %s\n", strerror(errno)); 178136452Sbrian return; 178236452Sbrian } 178336452Sbrian switch ((pid = fork())) { 178436452Sbrian case -1: 178537019Sbrian log_Printf(LogERROR, "fork(2): %s\n", strerror(errno)); 178636452Sbrian close(fds[0]); 178736452Sbrian close(fds[1]); 178836452Sbrian return; 178936452Sbrian case 0: 179044541Sbrian close(fds[1]); 179144541Sbrian bundle_LockTun(bundle); /* update pid */ 179244541Sbrian read(fds[0], &done, 1); /* uu_locks are mine ! */ 179336452Sbrian close(fds[0]); 179436452Sbrian setsid(); 179556350Sbrian bundle_ChangedPID(bundle); 179659084Sbrian log_Printf(LogDEBUG, "%d -> %d: %s session control\n", 179736452Sbrian (int)orig, (int)getpid(), 179836452Sbrian holdsession ? "Passed" : "Dropped"); 179941799Sbrian timer_InitService(0); /* Start the Timer Service */ 180036452Sbrian break; 180136452Sbrian default: 180244541Sbrian close(fds[0]); 180346686Sbrian /* Give away all our physical locks (to the final process) */ 180436452Sbrian for (dl = bundle->links; dl; dl = dl->next) 180536452Sbrian if (dl->state != DATALINK_CLOSED) 180646686Sbrian physical_ChangedPid(dl->physical, pid); 180744541Sbrian write(fds[1], "!", 1); /* done */ 180844541Sbrian close(fds[1]); 180953684Sbrian _exit(0); 181036452Sbrian break; 181136452Sbrian } 181236452Sbrian break; 181336452Sbrian default: 181444541Sbrian close(fds[0]); 181546686Sbrian /* Give away all our physical locks (to the intermediate process) */ 181636452Sbrian for (dl = bundle->links; dl; dl = dl->next) 181736452Sbrian if (dl->state != DATALINK_CLOSED) 181846686Sbrian physical_ChangedPid(dl->physical, pid); 181944541Sbrian write(fds[1], "!", 1); /* done */ 182044541Sbrian close(fds[1]); 182136452Sbrian if (holdsession) { 182236452Sbrian int fd, status; 182336452Sbrian 182436452Sbrian timer_TermService(); 182536452Sbrian signal(SIGPIPE, SIG_DFL); 182636452Sbrian signal(SIGALRM, SIG_DFL); 182736452Sbrian signal(SIGHUP, SIG_DFL); 182836452Sbrian signal(SIGTERM, SIG_DFL); 182936452Sbrian signal(SIGINT, SIG_DFL); 183036452Sbrian signal(SIGQUIT, SIG_DFL); 183136452Sbrian for (fd = getdtablesize(); fd >= 0; fd--) 183236452Sbrian close(fd); 183336452Sbrian /* 183436452Sbrian * Reap the intermediate process. As we're not exiting but the 183536452Sbrian * intermediate is, we don't want it to become defunct. 183636452Sbrian */ 183736452Sbrian waitpid(pid, &status, 0); 183836467Sbrian /* Tweak our process arguments.... */ 183953298Sbrian ID0setproctitle("session owner"); 184055252Sbrian setuid(ID0realuid()); 184136452Sbrian /* 184236452Sbrian * Hang around for a HUP. This should happen as soon as the 184358038Sbrian * ppp that we passed our ctty descriptor to closes it. 184458038Sbrian * NOTE: If this process dies, the passed descriptor becomes 184536452Sbrian * invalid and will give a select() error by setting one 184636452Sbrian * of the error fds, aborting the other ppp. We don't 184736452Sbrian * want that to happen ! 184836452Sbrian */ 184936452Sbrian pause(); 185036452Sbrian } 185153684Sbrian _exit(0); 185236452Sbrian break; 185336452Sbrian } 185436452Sbrian} 185540622Sbrian 185640622Sbrianint 185740622Sbrianbundle_HighestState(struct bundle *bundle) 185840622Sbrian{ 185940622Sbrian struct datalink *dl; 186040622Sbrian int result = DATALINK_CLOSED; 186140622Sbrian 186240622Sbrian for (dl = bundle->links; dl; dl = dl->next) 186340622Sbrian if (result < dl->state) 186440622Sbrian result = dl->state; 186540622Sbrian 186640622Sbrian return result; 186740622Sbrian} 186841654Sbrian 186941654Sbrianint 187041654Sbrianbundle_Exception(struct bundle *bundle, int fd) 187141654Sbrian{ 187241654Sbrian struct datalink *dl; 187341654Sbrian 187441654Sbrian for (dl = bundle->links; dl; dl = dl->next) 187541654Sbrian if (dl->physical->fd == fd) { 187641654Sbrian datalink_Down(dl, CLOSE_NORMAL); 187741654Sbrian return 1; 187841654Sbrian } 187941654Sbrian 188041654Sbrian return 0; 188141654Sbrian} 188247648Sbrian 188347648Sbrianvoid 188447648Sbrianbundle_AdjustFilters(struct bundle *bundle, struct in_addr *my_ip, 188547648Sbrian struct in_addr *peer_ip) 188647648Sbrian{ 188758044Sbrian filter_AdjustAddr(&bundle->filter.in, my_ip, peer_ip, NULL); 188858044Sbrian filter_AdjustAddr(&bundle->filter.out, my_ip, peer_ip, NULL); 188958044Sbrian filter_AdjustAddr(&bundle->filter.dial, my_ip, peer_ip, NULL); 189058044Sbrian filter_AdjustAddr(&bundle->filter.alive, my_ip, peer_ip, NULL); 189147648Sbrian} 189249434Sbrian 189349434Sbrianvoid 189458044Sbrianbundle_AdjustDNS(struct bundle *bundle, struct in_addr dns[2]) 189558044Sbrian{ 189658044Sbrian filter_AdjustAddr(&bundle->filter.in, NULL, NULL, dns); 189758044Sbrian filter_AdjustAddr(&bundle->filter.out, NULL, NULL, dns); 189858044Sbrian filter_AdjustAddr(&bundle->filter.dial, NULL, NULL, dns); 189958044Sbrian filter_AdjustAddr(&bundle->filter.alive, NULL, NULL, dns); 190058044Sbrian} 190158044Sbrian 190258044Sbrianvoid 190349434Sbrianbundle_CalculateBandwidth(struct bundle *bundle) 190449434Sbrian{ 190549434Sbrian struct datalink *dl; 190649434Sbrian int mtu, sp; 190749434Sbrian 190849434Sbrian bundle->bandwidth = 0; 190949434Sbrian mtu = 0; 191049434Sbrian for (dl = bundle->links; dl; dl = dl->next) 191149434Sbrian if (dl->state == DATALINK_OPEN) { 191249434Sbrian if ((sp = dl->mp.bandwidth) == 0 && 191349434Sbrian (sp = physical_GetSpeed(dl->physical)) == 0) 191449434Sbrian log_Printf(LogDEBUG, "%s: %s: Cannot determine bandwidth\n", 191549434Sbrian dl->name, dl->physical->name.full); 191649434Sbrian else 191749434Sbrian bundle->bandwidth += sp; 191849434Sbrian if (!bundle->ncp.mp.active) { 191949434Sbrian mtu = dl->physical->link.lcp.his_mru; 192049434Sbrian break; 192149434Sbrian } 192249434Sbrian } 192349434Sbrian 192449434Sbrian if(bundle->bandwidth == 0) 192549434Sbrian bundle->bandwidth = 115200; /* Shrug */ 192649434Sbrian 192749434Sbrian if (bundle->ncp.mp.active) 192849434Sbrian mtu = bundle->ncp.mp.peer_mrru; 192949434Sbrian else if (!mtu) 193049434Sbrian mtu = 1500; 193149434Sbrian 193249434Sbrian#ifndef NORADIUS 193349434Sbrian if (bundle->radius.valid && bundle->radius.mtu && bundle->radius.mtu < mtu) { 193449434Sbrian log_Printf(LogLCP, "Reducing MTU to radius value %lu\n", 193549434Sbrian bundle->radius.mtu); 193649434Sbrian mtu = bundle->radius.mtu; 193749434Sbrian } 193849434Sbrian#endif 193949434Sbrian 194049434Sbrian tun_configure(bundle, mtu); 194149434Sbrian} 194249434Sbrian 194349434Sbrianvoid 194449434Sbrianbundle_AutoAdjust(struct bundle *bundle, int percent, int what) 194549434Sbrian{ 194649434Sbrian struct datalink *dl, *choice, *otherlinkup; 194749434Sbrian 194849434Sbrian choice = otherlinkup = NULL; 194949434Sbrian for (dl = bundle->links; dl; dl = dl->next) 195049434Sbrian if (dl->physical->type == PHYS_AUTO) { 195149434Sbrian if (dl->state == DATALINK_OPEN) { 195249434Sbrian if (what == AUTO_DOWN) { 195349434Sbrian if (choice) 195449434Sbrian otherlinkup = choice; 195549434Sbrian choice = dl; 195649434Sbrian } 195749434Sbrian } else if (dl->state == DATALINK_CLOSED) { 195849434Sbrian if (what == AUTO_UP) { 195949434Sbrian choice = dl; 196049434Sbrian break; 196149434Sbrian } 196249434Sbrian } else { 196349434Sbrian /* An auto link in an intermediate state - forget it for the moment */ 196449434Sbrian choice = NULL; 196549434Sbrian break; 196649434Sbrian } 196749434Sbrian } else if (dl->state == DATALINK_OPEN && what == AUTO_DOWN) 196849434Sbrian otherlinkup = dl; 196949434Sbrian 197049434Sbrian if (choice) { 197149434Sbrian if (what == AUTO_UP) { 197249434Sbrian log_Printf(LogPHASE, "%d%% saturation -> Opening link ``%s''\n", 197349434Sbrian percent, choice->name); 197449434Sbrian datalink_Up(choice, 1, 1); 197561129Sbrian mp_CheckAutoloadTimer(&bundle->ncp.mp); 197649434Sbrian } else if (otherlinkup) { /* Only bring the second-last link down */ 197749434Sbrian log_Printf(LogPHASE, "%d%% saturation -> Closing link ``%s''\n", 197849434Sbrian percent, choice->name); 197951945Sbrian datalink_Close(choice, CLOSE_STAYDOWN); 198061129Sbrian mp_CheckAutoloadTimer(&bundle->ncp.mp); 198149434Sbrian } 198249434Sbrian } 198349434Sbrian} 198449434Sbrian 198549434Sbrianint 198649434Sbrianbundle_WantAutoloadTimer(struct bundle *bundle) 198749434Sbrian{ 198849434Sbrian struct datalink *dl; 198949434Sbrian int autolink, opened; 199049434Sbrian 199149434Sbrian if (bundle->phase == PHASE_NETWORK) { 199249434Sbrian for (autolink = opened = 0, dl = bundle->links; dl; dl = dl->next) 199349434Sbrian if (dl->physical->type == PHYS_AUTO) { 199449434Sbrian if (++autolink == 2 || (autolink == 1 && opened)) 199549434Sbrian /* Two auto links or one auto and one open in NETWORK phase */ 199649434Sbrian return 1; 199749434Sbrian } else if (dl->state == DATALINK_OPEN) { 199849434Sbrian opened++; 199949434Sbrian if (autolink) 200049434Sbrian /* One auto and one open link in NETWORK phase */ 200149434Sbrian return 1; 200249434Sbrian } 200349434Sbrian } 200449434Sbrian 200549434Sbrian return 0; 200649434Sbrian} 200756350Sbrian 200856350Sbrianvoid 200956350Sbrianbundle_ChangedPID(struct bundle *bundle) 201056350Sbrian{ 201156350Sbrian#ifdef TUNSIFPID 201256350Sbrian ioctl(bundle->dev.fd, TUNSIFPID, 0); 201356350Sbrian#endif 201456350Sbrian} 2015