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Don't IPCP TLD if we're already doing it. This prevents

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recursion by doing something like ``down'' or ``quit all''
in ppp.linkdown.
This commit is contained in:
Brian Somers 1999-06-08 11:58:27 +00:00
parent b12ce35537
commit aa8574707e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=47835
1 changed files with 23 additions and 19 deletions
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42
usr.sbin/ppp/ipcp.c
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@ -17,7 +17,7 @@
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: ipcp.c,v 1.78 1999/05/31 23:57:40 brian Exp $
* $Id: ipcp.c,v 1.79 1999/06/02 15:59:01 brian Exp $
*
* TODO:
* o Support IPADDRS properly
@ -709,29 +709,33 @@ static void
IpcpLayerDown(struct fsm *fp)
{
/* About to come down */
static int recursing;
struct ipcp *ipcp = fsm2ipcp(fp);
const char *s;
if (ipcp->fsm.bundle->iface->in_addrs)
s = inet_ntoa(ipcp->fsm.bundle->iface->in_addr[0].ifa);
else
s = "Interface configuration error !";
log_Printf(LogIPCP, "%s: LayerDown: %s\n", fp->link->name, s);
if (!recursing++) {
if (ipcp->fsm.bundle->iface->in_addrs)
s = inet_ntoa(ipcp->fsm.bundle->iface->in_addr[0].ifa);
else
s = "Interface configuration error !";
log_Printf(LogIPCP, "%s: LayerDown: %s\n", fp->link->name, s);
/*
* XXX this stuff should really live in the FSM. Our config should
* associate executable sections in files with events.
*/
if (system_Select(fp->bundle, s, LINKDOWNFILE, NULL, NULL) < 0) {
if (bundle_GetLabel(fp->bundle)) {
if (system_Select(fp->bundle, bundle_GetLabel(fp->bundle),
LINKDOWNFILE, NULL, NULL) < 0)
system_Select(fp->bundle, "MYADDR", LINKDOWNFILE, NULL, NULL);
} else
system_Select(fp->bundle, "MYADDR", LINKDOWNFILE, NULL, NULL);
/*
* XXX this stuff should really live in the FSM. Our config should
* associate executable sections in files with events.
*/
if (system_Select(fp->bundle, s, LINKDOWNFILE, NULL, NULL) < 0) {
if (bundle_GetLabel(fp->bundle)) {
if (system_Select(fp->bundle, bundle_GetLabel(fp->bundle),
LINKDOWNFILE, NULL, NULL) < 0)
system_Select(fp->bundle, "MYADDR", LINKDOWNFILE, NULL, NULL);
} else
system_Select(fp->bundle, "MYADDR", LINKDOWNFILE, NULL, NULL);
}
ipcp_Setup(ipcp, INADDR_NONE);
}
ipcp_Setup(ipcp, INADDR_NONE);
recursing--;
}
int