*/
#ifndef lint
-static char rcsid[] = "$Id: ipcp.c,v 1.11 1994/09/21 06:47:37 paulus Exp $";
+static char rcsid[] = "$Id: ipcp.c,v 1.22 1995/12/18 03:45:56 paulus Exp $";
#endif
/*
#include <syslog.h>
#include <sys/types.h>
#include <sys/socket.h>
+#include <netinet/in.h>
#include "pppd.h"
#include "fsm.h"
#include "pathnames.h"
/* global vars */
-ipcp_options ipcp_wantoptions[N_PPP]; /* Options that we want to request */
-ipcp_options ipcp_gotoptions[N_PPP]; /* Options that peer ack'd */
-ipcp_options ipcp_allowoptions[N_PPP]; /* Options we allow peer to request */
-ipcp_options ipcp_hisoptions[N_PPP]; /* Options that we ack'd */
+ipcp_options ipcp_wantoptions[NUM_PPP]; /* Options that we want to request */
+ipcp_options ipcp_gotoptions[NUM_PPP]; /* Options that peer ack'd */
+ipcp_options ipcp_allowoptions[NUM_PPP]; /* Options we allow peer to request */
+ipcp_options ipcp_hisoptions[NUM_PPP]; /* Options that we ack'd */
/* local vars */
-static int cis_received[N_PPP]; /* # Conf-Reqs received */
+static int cis_received[NUM_PPP]; /* # Conf-Reqs received */
/*
* Callbacks for fsm code. (CI = Configuration Information)
static void ipcp_down __P((fsm *)); /* We're DOWN */
static void ipcp_script __P((fsm *, char *)); /* Run an up/down script */
-fsm ipcp_fsm[N_PPP]; /* IPCP fsm structure */
+fsm ipcp_fsm[NUM_PPP]; /* IPCP fsm structure */
static fsm_callbacks ipcp_callbacks = { /* IPCP callback routines */
ipcp_resetci, /* Reset our Configuration Information */
"IPCP" /* String name of protocol */
};
+struct protent ipcp_protent = {
+ PPP_IPCP, ipcp_init, ipcp_input, ipcp_protrej,
+ ipcp_lowerup, ipcp_lowerdown, ipcp_open, ipcp_close,
+ ipcp_printpkt, NULL, 1, "IPCP"
+};
+
/*
* Lengths of configuration options.
*/
f->callbacks = &ipcp_callbacks;
fsm_init(&ipcp_fsm[unit]);
- wo->neg_addr = 1;
- wo->old_addrs = 0;
- wo->ouraddr = 0;
- wo->hisaddr = 0;
+ memset(wo, 0, sizeof(*wo));
+ memset(ao, 0, sizeof(*ao));
+ wo->neg_addr = 1;
wo->neg_vj = 1;
- wo->old_vj = 0;
wo->vj_protocol = IPCP_VJ_COMP;
wo->maxslotindex = MAX_STATES - 1; /* really max index */
wo->cflag = 1;
ao->neg_vj = 1;
ao->maxslotindex = MAX_STATES - 1;
ao->cflag = 1;
+
+ /*
+ * XXX These control whether the user may use the proxyarp
+ * and defaultroute options.
+ */
+ ao->proxy_arp = 1;
+ ao->default_route = 1;
}
* ipcp_close - Take IPCP down.
*/
void
-ipcp_close(unit)
+ipcp_close(unit, reason)
int unit;
+ char *reason;
{
- fsm_close(&ipcp_fsm[unit]);
+ fsm_close(&ipcp_fsm[unit], reason);
}
* Accept the peer's idea of {our,his} address, if different
* from our idea, only if the accept_{local,remote} flag is set.
*/
- NAKCIADDR(CI_ADDR, neg_addr, go->old_addrs,
+ NAKCIADDR((go->old_addrs? CI_ADDRS: CI_ADDR), neg_addr, go->old_addrs,
if (go->accept_local && ciaddr1) { /* Do we know our address? */
try.ouraddr = ciaddr1;
IPCPDEBUG((LOG_INFO, "local IP address %s",
case CI_ADDR:
if (go->neg_addr || no.neg_addr || cilen != CILEN_ADDR)
goto bad;
- try.neg_addr = 1;
try.old_addrs = 0;
GETLONG(l, p);
ciaddr1 = htonl(l);
if (ciaddr1 && go->accept_local)
try.ouraddr = ciaddr1;
+ if (try.ouraddr != 0)
+ try.neg_addr = 1;
no.neg_addr = 1;
break;
- default:
- goto bad;
}
p = next;
}
&& (ciaddr1 == 0 || !wo->accept_remote)) {
orc = CONFNAK;
if (!reject_if_disagree) {
- DECPTR(sizeof (long), p);
+ DECPTR(sizeof(u_int32_t), p);
tl = ntohl(wo->hisaddr);
PUTLONG(tl, p);
}
+ } else if (ciaddr1 == 0 && wo->hisaddr == 0) {
+ /*
+ * If neither we nor he knows his address, reject the option.
+ */
+ orc = CONFREJ;
+ wo->req_addr = 0; /* don't NAK with 0.0.0.0 later */
+ break;
}
/*
if (ciaddr2 == 0 || !wo->accept_local) {
orc = CONFNAK;
if (!reject_if_disagree) {
- DECPTR(sizeof (long), p);
+ DECPTR(sizeof(u_int32_t), p);
tl = ntohl(wo->ouraddr);
PUTLONG(tl, p);
}
&& (ciaddr1 == 0 || !wo->accept_remote)) {
orc = CONFNAK;
if (!reject_if_disagree) {
- DECPTR(sizeof (long), p);
+ DECPTR(sizeof(u_int32_t), p);
tl = ntohl(wo->hisaddr);
PUTLONG(tl, p);
}
+ } else if (ciaddr1 == 0 && wo->hisaddr == 0) {
+ /*
+ * Don't ACK an address of 0.0.0.0 - reject it instead.
+ */
+ orc = CONFREJ;
+ wo->req_addr = 0; /* don't NAK with 0.0.0.0 later */
+ break;
}
ho->neg_addr = 1;
ho->hisaddr = ciaddr1;
break;
+
+#ifdef USE_MS_DNS
+ case CI_MS_DNS1:
+ /* Microsoft primary DNS request */
+ IPCPDEBUG((LOG_INFO, "ipcp: received DNS1 Request "));
+
+ /* If we do not have a DNS address then we cannot send it */
+ if (ao->dnsaddr[0] == 0 ||
+ cilen != CILEN_ADDR) { /* Check CI length */
+ orc = CONFREJ; /* Reject CI */
+ break;
+ }
+ GETLONG(tl, p);
+ if (htonl(tl) != ao->dnsaddr[0]) {
+ DECPTR(sizeof(u_int32_t), p);
+ tl = ntohl(ao->dnsaddr[0]);
+ PUTLONG(tl, p);
+ orc = CONFNAK;
+ }
+ break;
+
+ case CI_MS_DNS2:
+ /* Microsoft secondary DNS request */
+ IPCPDEBUG((LOG_INFO, "ipcp: received DNS2 Request "));
+
+ /* If we do not have a DNS address then we cannot send it */
+ if (ao->dnsaddr[1] == 0 || /* Yes, this is the first one! */
+ cilen != CILEN_ADDR) { /* Check CI length */
+ orc = CONFREJ; /* Reject CI */
+ break;
+ }
+ GETLONG(tl, p);
+ if (htonl(tl) != ao->dnsaddr[1]) { /* and this is the 2nd one */
+ DECPTR(sizeof(u_int32_t), p);
+ tl = ntohl(ao->dnsaddr[1]);
+ PUTLONG(tl, p);
+ orc = CONFNAK;
+ }
+ break;
+#endif
case CI_COMPRESSTYPE:
IPCPDEBUG((LOG_INFO, "ipcp: received COMPRESSTYPE "));
}
}
ho->maxslotindex = maxslotindex;
- ho->cflag = wo->cflag;
+ ho->cflag = cflag;
} else {
ho->old_vj = 1;
ho->maxslotindex = MAX_STATES - 1;
if (ho->hisaddr == 0) {
syslog(LOG_ERR, "Could not determine remote IP address");
- ipcp_close(f->unit);
+ ipcp_close(f->unit, "Could not determine remote IP address");
return;
}
if (go->ouraddr == 0) {
syslog(LOG_ERR, "Could not determine local IP address");
- ipcp_close(f->unit);
+ ipcp_close(f->unit, "Could not determine local IP address");
return;
}
if (!auth_ip_addr(f->unit, ho->hisaddr)) {
syslog(LOG_ERR, "Peer is not authorized to use remote address %s",
ip_ntoa(ho->hisaddr));
- ipcp_close(f->unit);
+ ipcp_close(f->unit, "Unauthorized remote IP address");
return;
}
mask = GetMask(go->ouraddr);
if (!sifaddr(f->unit, go->ouraddr, ho->hisaddr, mask)) {
IPCPDEBUG((LOG_WARNING, "sifaddr failed"));
- ipcp_close(f->unit);
+ ipcp_close(f->unit, "Interface configuration failed");
return;
}
/* bring the interface up for IP */
if (!sifup(f->unit)) {
IPCPDEBUG((LOG_WARNING, "sifup failed"));
- ipcp_close(f->unit);
+ ipcp_close(f->unit, "Interface configuration failed");
return;
}
argv[3] = strspeed;
argv[4] = strlocal;
argv[5] = strremote;
- argv[6] = NULL;
+ argv[6] = ipparam;
+ argv[7] = NULL;
run_program(script, argv, 0);
}
projects / ppp.git / blobdiff