X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Flcp.c;h=d1be64f43b74e3ca68e9a09a4d80094281e8c46a;hb=e9275a1f8240dea5d2f0c147ce817db61dad61ab;hp=1e01de11dfccb1fda3e8ffd1f1741f6ad915851a;hpb=c429353c95439c2722b5206221e9bfb928b02437;p=ppp.git

diff --git a/pppd/lcp.c b/pppd/lcp.c
index 1e01de1..d1be64f 100644
--- a/pppd/lcp.c
+++ b/pppd/lcp.c
@@ -18,7 +18,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: lcp.c,v 1.35 1999/03/16 02:47:00 paulus Exp $";
+static const char rcsid[] = "$Id: lcp.c,v 1.43 1999/08/12 04:25:21 paulus Exp $";
 #endif
 
 /*
@@ -40,6 +40,7 @@ static char rcsid[] = "$Id: lcp.c,v 1.35 1999/03/16 02:47:00 paulus Exp $";
  */
 int	lcp_echo_interval = 0; 	/* Interval between LCP echo-requests */
 int	lcp_echo_fails = 0;	/* Tolerance to unanswered echo-requests */
+bool	lax_recv = 0;		/* accept control chars in asyncmap */
 
 static int setescape __P((char **));
 
@@ -63,7 +64,7 @@ static option_t lcp_option_list[] = {
     { "-as", o_uint32, &lcp_wantoptions[0].asyncmap,
       "Set asyncmap (for received packets)",
       OPT_OR, &lcp_wantoptions[0].neg_asyncmap },
-    { "nomagicnumber", o_bool, &lcp_wantoptions[0].neg_magicnumber,
+    { "nomagic", o_bool, &lcp_wantoptions[0].neg_magicnumber,
       "Disable magic number negotiation (looped-back line detection)",
       OPT_A2COPY, &lcp_allowoptions[0].neg_magicnumber },
     { "-mn", o_bool, &lcp_wantoptions[0].neg_magicnumber,
@@ -104,6 +105,8 @@ static option_t lcp_option_list[] = {
       "Set maximum number of LCP configure-request transmissions" },
     { "lcp-max-failure", o_int, &lcp_fsm[0].maxnakloops,
       "Set limit on number of LCP configure-naks" },
+    { "receive-all", o_bool, &lax_recv,
+      "Accept all received control characters", 1 },
     {NULL}
 };
 
@@ -117,7 +120,7 @@ u_int32_t xmit_accm[NUM_PPP][8];		/* extended transmit ACCM */
 
 static u_int32_t lcp_echos_pending = 0;	/* Number of outstanding echo msgs */
 static u_int32_t lcp_echo_number   = 0;	/* ID number of next echo frame */
-static u_int32_t lcp_echo_timer_running = 0;  /* TRUE if a timer is running */
+static u_int32_t lcp_echo_timer_running = 0;  /* set if a timer is running */
 
 static u_char nak_buffer[PPP_MRU];	/* where we construct a nak packet */
 
@@ -192,6 +195,7 @@ struct protent lcp_protent = {
     NULL,
     1,
     "LCP",
+    NULL,
     lcp_option_list,
     NULL,
     NULL,
@@ -364,7 +368,7 @@ lcp_lowerup(unit)
      */
     ppp_set_xaccm(unit, xmit_accm[unit]);
     ppp_send_config(unit, PPP_MRU, 0xffffffff, 0, 0);
-    ppp_recv_config(unit, PPP_MRU, 0xffffffff,
+    ppp_recv_config(unit, PPP_MRU, (lax_recv? 0: 0xffffffff),
 		    wo->neg_pcompression, wo->neg_accompression);
     peer_mru[unit] = PPP_MRU;
     lcp_allowoptions[unit].asyncmap = xmit_accm[unit][0];
@@ -1043,18 +1047,16 @@ lcp_nakci(f, p, len)
 	p = next;
     }
 
-    /* If there is still anything left, this packet is bad. */
-    if (len != 0)
-	goto bad;
-
     /*
      * OK, the Nak is good.  Now we can update state.
+     * If there are any options left we ignore them.
      */
     if (f->state != OPENED) {
 	if (looped_back) {
 	    if (++try.numloops >= lcp_loopbackfail) {
 		notice("Serial line is looped back.");
 		lcp_close(f->unit, "Loopback detected");
+		status = EXIT_LOOPBACK;
 	    }
 	} else
 	    try.numloops = 0;
@@ -1550,7 +1552,7 @@ lcp_up(f)
 		    (ho->neg_asyncmap? ho->asyncmap: 0xffffffff),
 		    ho->neg_pcompression, ho->neg_accompression);
     ppp_recv_config(f->unit, (go->neg_mru? MAX(wo->mru, go->mru): PPP_MRU),
-		    (go->neg_asyncmap? go->asyncmap: 0xffffffff),
+		    (lax_recv? 0: go->neg_asyncmap? go->asyncmap: 0xffffffff),
 		    go->neg_pcompression, go->neg_accompression);
 
     if (ho->neg_mru)
@@ -1723,7 +1725,7 @@ lcp_printpkt(p, plen, printer, arg)
 		if (olen >= CILEN_CHAR) {
 		    p += 2;
 		    printer(arg, "callback ");
-		    GETSHORT(cishort, p);
+		    GETCHAR(cishort, p);
 		    switch (cishort) {
 		    case CBCP_OPT:
 			printer(arg, "CBCP");
@@ -1804,6 +1806,7 @@ void LcpLinkFailure (f)
 	info("No response to %d echo-requests", lcp_echos_pending);
         notice("Serial link appears to be disconnected.");
         lcp_close(f->unit, "Peer not responding");
+	status = EXIT_PEER_DEAD;
     }
 }
 
@@ -1816,6 +1819,8 @@ LcpEchoCheck (f)
     fsm *f;
 {
     LcpSendEchoRequest (f);
+    if (f->state != OPENED)
+	return;
 
     /*
      * Start the timer for the next interval.