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o Maintain a link-type mask for open datalinks as well as

Browse Source 
for all datalinks in a bundle.  Ppp now deals correctly
  with link types that are changed while open
o When changing the type of the last AUTO link, only clear
  the interface if we're not in PHASE_NETWORK.  This allows
  us to switch to -ddial mode while we have a connection
  without suddenly unexpectedly throttling ourselves by
  clearing the interface configuration.
  Problem area noted by: Aaron Jeremias Luz <aaron@csh.rit.edu>
This commit is contained in:
Brian Somers 1998-06-12 17:45:10 +00:00
parent 7ec6ca7ce0
commit ff0f9439b4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=36928
5 changed files with 92 additions and 65 deletions
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132
usr.sbin/ppp/bundle.c
View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: bundle.c,v 1.13 1998/06/06 20:50:54 brian Exp $
* $Id: bundle.c,v 1.14 1998/06/07 00:16:37 brian Exp $
*/
#include <sys/param.h>
@ -300,12 +300,46 @@ bundle_RemainingAutoLoadTime(struct bundle *bundle)
return -1;
}
static void
bundle_LinkAdded(struct bundle *bundle, struct datalink *dl)
{
bundle->phys_type.all |= dl->physical->type;
if (dl->state == DATALINK_OPEN)
bundle->phys_type.open |= dl->physical->type;
/* Note: We only re-add links that are DATALINK_OPEN */
if (dl->physical->type == PHYS_AUTO &&
bundle->autoload.timer.state == TIMER_STOPPED &&
dl->state != DATALINK_OPEN &&
bundle->phase == PHASE_NETWORK)
bundle->autoload.running = 1;
if ((bundle->phys_type.open & (PHYS_DEDICATED|PHYS_DDIAL))
!= bundle->phys_type.open && bundle->idle.timer.state == TIMER_STOPPED)
/* We may need to start our idle timer */
bundle_StartIdleTimer(bundle);
}
static void
bundle_LinksRemoved(struct bundle *bundle)
{
struct datalink *dl;
bundle->phys_type.all = bundle->phys_type.open = 0;
for (dl = bundle->links; dl; dl = dl->next)
bundle_LinkAdded(bundle, dl);
if ((bundle->phys_type.open & (PHYS_DEDICATED|PHYS_DDIAL))
== bundle->phys_type.open)
bundle_StopIdleTimer(bundle);
}
static void
bundle_LayerUp(void *v, struct fsm *fp)
{
/*
* The given fsm is now up
* If it's an LCP, adjust our phys_mode.open value.
* If it's an LCP set our mtu (if we're multilink, add up the link
* speeds and set the MRRU) and start our autoload timer.
* If it's an NCP, tell our -background parent to go away.
@ -314,6 +348,9 @@ bundle_LayerUp(void *v, struct fsm *fp)
struct bundle *bundle = (struct bundle *)v;
if (fp->proto == PROTO_LCP) {
struct physical *p = link2physical(fp->link);
bundle_LinkAdded(bundle, p->dl);
if (bundle->ncp.mp.active) {
struct datalink *dl;
@ -324,7 +361,7 @@ bundle_LayerUp(void *v, struct fsm *fp)
tun_configure(bundle, bundle->ncp.mp.peer_mrru);
bundle->autoload.running = 1;
} else {
bundle->ifp.Speed = modem_Speed(link2physical(fp->link));
bundle->ifp.Speed = modem_Speed(p);
tun_configure(bundle, fsm2lcp(fp)->his_mru);
}
} else if (fp->proto == PROTO_IPCP) {
@ -339,6 +376,7 @@ bundle_LayerDown(void *v, struct fsm *fp)
/*
* The given FSM has been told to come down.
* If it's our last NCP, stop the idle timer.
* If it's an LCP, adjust our phys_type.open value and any timers.
* If it's an LCP and we're in multilink mode, adjust our tun
* speed and make sure our minimum sequence number is adjusted.
*/
@ -347,27 +385,30 @@ bundle_LayerDown(void *v, struct fsm *fp)
if (fp->proto == PROTO_IPCP)
bundle_StopIdleTimer(bundle);
else if (fp->proto == PROTO_LCP && bundle->ncp.mp.active) {
struct datalink *dl;
struct datalink *lost;
else if (fp->proto == PROTO_LCP) {
bundle_LinksRemoved(bundle); /* adjust timers & phys_type values */
if (bundle->ncp.mp.active) {
struct datalink *dl;
struct datalink *lost;
bundle->ifp.Speed = 0;
lost = NULL;
for (dl = bundle->links; dl; dl = dl->next)
if (fp == &dl->physical->link.lcp.fsm)
lost = dl;
else if (dl->state == DATALINK_OPEN)
bundle->ifp.Speed += modem_Speed(dl->physical);
bundle->ifp.Speed = 0;
lost = NULL;
for (dl = bundle->links; dl; dl = dl->next)
if (fp == &dl->physical->link.lcp.fsm)
lost = dl;
else if (dl->state == DATALINK_OPEN)
bundle->ifp.Speed += modem_Speed(dl->physical);
if (bundle->ifp.Speed)
/* Don't configure down to a speed of 0 */
tun_configure(bundle, bundle->ncp.mp.link.lcp.his_mru);
if (bundle->ifp.Speed)
/* Don't configure down to a speed of 0 */
tun_configure(bundle, bundle->ncp.mp.link.lcp.his_mru);
if (lost)
mp_LinkLost(&bundle->ncp.mp, lost);
else
log_Printf(LogERROR, "Oops, lost an unrecognised datalink (%s) !\n",
fp->link->name);
if (lost)
mp_LinkLost(&bundle->ncp.mp, lost);
else
log_Printf(LogERROR, "Oops, lost an unrecognised datalink (%s) !\n",
fp->link->name);
}
}
}
@ -501,8 +542,8 @@ bundle_UpdateSet(struct descriptor *d, fd_set *r, fd_set *w, fd_set *e, int *n)
bundle_StartAutoLoadTimer(bundle, 1);
}
if (r &&
(bundle->phase == PHASE_NETWORK || bundle->phys_type & PHYS_AUTO)) {
if (r && (bundle->phase == PHASE_NETWORK ||
bundle->phys_type.all & PHYS_AUTO)) {
/* enough surplus so that we can tell if we're getting swamped */
want = bundle->cfg.autoload.max.packets + nlinks * 2;
/* but at least 20 packets ! */
@ -792,7 +833,8 @@ bundle_Create(const char *prefix, int type, const char **argv)
bundle.cfg.autoload.max.timeout = 0;
bundle.cfg.autoload.min.packets = 0;
bundle.cfg.autoload.min.timeout = 0;
bundle.phys_type = type;
bundle.phys_type.all = type;
bundle.phys_type.open = 0;
bundle.links = datalink_Create("deflink", &bundle, type);
if (bundle.links == NULL) {
@ -1223,8 +1265,8 @@ void
bundle_StartIdleTimer(struct bundle *bundle)
{
timer_Stop(&bundle->idle.timer);
if ((bundle->phys_type & (PHYS_DEDICATED|PHYS_DDIAL)) != bundle->phys_type &&
bundle->cfg.idle_timeout) {
if ((bundle->phys_type.open & (PHYS_DEDICATED|PHYS_DDIAL)) !=
bundle->phys_type.open && bundle->cfg.idle_timeout) {
bundle->idle.timer.func = bundle_IdleTimeout;
bundle->idle.timer.name = "idle";
bundle->idle.timer.load = bundle->cfg.idle_timeout * SECTICKS;
@ -1263,29 +1305,6 @@ bundle_IsDead(struct bundle *bundle)
return !bundle->links || (bundle->phase == PHASE_DEAD && bundle->CleaningUp);
}
static void
bundle_LinkAdded(struct bundle *bundle, struct datalink *dl)
{
bundle->phys_type |= dl->physical->type;
if (dl->physical->type == PHYS_AUTO &&
bundle->autoload.timer.state == TIMER_STOPPED &&
bundle->phase == PHASE_NETWORK)
bundle->autoload.running = 1;
}
static void
bundle_LinksRemoved(struct bundle *bundle)
{
struct datalink *dl;
bundle->phys_type = 0;
for (dl = bundle->links; dl; dl = dl->next)
bundle_LinkAdded(bundle, dl);
if ((bundle->phys_type & (PHYS_DEDICATED|PHYS_DDIAL)) == bundle->phys_type)
timer_Stop(&bundle->idle.timer);
}
static struct datalink *
bundle_DatalinkLinkout(struct bundle *bundle, struct datalink *dl)
{
@ -1547,25 +1566,28 @@ bundle_SetMode(struct bundle *bundle, struct datalink *dl, int mode)
if (omode == mode)
return 1;
if (mode == PHYS_AUTO && !(bundle->phys_type & PHYS_AUTO))
/* Changing to demand-dial mode */
if (mode == PHYS_AUTO && !(bundle->phys_type.all & PHYS_AUTO))
/* First auto link */
if (bundle->ncp.ipcp.peer_ip.s_addr == INADDR_ANY) {
log_Printf(LogWARN, "You must `set ifaddr' before changing mode to %s\n",
mode2Nam(mode));
log_Printf(LogWARN, "You must `set ifaddr' or `open' before"
" changing mode to %s\n", mode2Nam(mode));
return 0;
}
if (!datalink_SetMode(dl, mode))
return 0;
if (mode == PHYS_AUTO && !(bundle->phys_type & PHYS_AUTO))
if (mode == PHYS_AUTO && !(bundle->phys_type.all & PHYS_AUTO) &&
bundle->phase != PHASE_NETWORK)
/* First auto link, we need an interface */
ipcp_InterfaceUp(&bundle->ncp.ipcp);
/* Regenerate phys_type and adjust autoload & idle timers */
bundle_LinksRemoved(bundle);
if (omode == PHYS_AUTO && !(bundle->phys_type & PHYS_AUTO))
/* Changing from demand-dial mode */
if (omode == PHYS_AUTO && !(bundle->phys_type.all & PHYS_AUTO) &&
bundle->phase != PHASE_NETWORK)
/* No auto links left */
ipcp_CleanInterface(&bundle->ncp.ipcp);
return 1;

8
usr.sbin/ppp/bundle.h
View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: bundle.h,v 1.5 1998/05/29 18:33:08 brian Exp $
* $Id: bundle.h,v 1.6 1998/06/06 20:50:56 brian Exp $
*/
#define PHASE_DEAD 0 /* Link is dead */
@ -70,7 +70,11 @@ struct bundle {
int routing_seq; /* The current routing sequence number */
u_int phase; /* Curent phase */
int phys_type; /* Union of all physical::type's */
struct {
int all; /* Union of all physical::type's */
int open; /* Union of all open physical::type's */
} phys_type;
unsigned CleaningUp : 1; /* Going to exit.... */

10
usr.sbin/ppp/command.c
View File

@ -17,7 +17,7 @@
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: command.c,v 1.138 1998/06/08 20:23:44 brian Exp $
* $Id: command.c,v 1.139 1998/06/10 00:16:06 brian Exp $
*
*/
#include <sys/types.h>
@ -124,7 +124,7 @@
#define NEG_DNS 50
const char Version[] = "2.0-beta";
const char VersionDate[] = "$Date: 1998/06/08 20:23:44 $";
const char VersionDate[] = "$Date: 1998/06/10 00:16:06 $";
static int ShowCommand(struct cmdargs const *);
static int TerminalCommand(struct cmdargs const *);
@ -265,7 +265,7 @@ LoadCommand(struct cmdargs const *arg)
else
name = "default";
if (!system_IsValid(name, arg->prompt, arg->bundle->phys_type)) {
if (!system_IsValid(name, arg->prompt, arg->bundle->phys_type.all)) {
log_Printf(LogERROR, "%s: Label not allowed\n", name);
return 1;
} else {
@ -298,7 +298,7 @@ DialCommand(struct cmdargs const *arg)
if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO)))
|| (!arg->cx &&
(arg->bundle->phys_type & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) {
(arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) {
log_Printf(LogWARN, "Manual dial is only available for auto and"
" interactive links\n");
return 1;
@ -1141,7 +1141,7 @@ SetInterfaceAddr(struct cmdargs const *arg)
}
if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr,
arg->bundle->phys_type & PHYS_AUTO))
arg->bundle->phys_type.all & PHYS_AUTO))
return 4;
return 0;

3
usr.sbin/ppp/datalink.c
View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: datalink.c,v 1.6 1998/05/28 23:15:33 brian Exp $
* $Id: datalink.c,v 1.7 1998/05/29 18:32:10 brian Exp $
*/
#include <sys/types.h>
@ -509,6 +509,7 @@ datalink_LayerDown(void *v, struct fsm *fp)
peerid_Init(&dl->peer);
fsm_Down(&dl->physical->link.ccp.fsm);
fsm_Close(&dl->physical->link.ccp.fsm);
datalink_NewState(dl, DATALINK_LCP); /* before parent TLD */
(*dl->parent->LayerDown)(dl->parent->object, fp);
/* fall through */

4
usr.sbin/ppp/ipcp.c
View File

@ -17,7 +17,7 @@
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: ipcp.c,v 1.52 1998/05/23 22:24:39 brian Exp $
* $Id: ipcp.c,v 1.53 1998/05/29 18:32:11 brian Exp $
*
* TODO:
* o More RFC1772 backwoard compatibility
@ -685,7 +685,7 @@ IpcpLayerDown(struct fsm *fp)
system_Select(fp->bundle, "MYADDR", LINKDOWNFILE, NULL);
}
if (!(ipcp->fsm.bundle->phys_type & PHYS_AUTO))
if (!(ipcp->fsm.bundle->phys_type.all & PHYS_AUTO))
ipcp_CleanInterface(ipcp);
}