* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#define RCSID "$Id: main.c,v 1.86 1999/09/11 12:08:57 paulus Exp $"
+#define RCSID "$Id: main.c,v 1.89 2000/01/18 19:49:52 masputra Exp $"
#include <stdio.h>
#include <ctype.h>
int devnam_fixed; /* set while in options.ttyxx file */
volatile int status; /* exit status for pppd */
int unsuccess; /* # unsuccessful connection attempts */
+int do_callback; /* != 0 if we should do callback next */
+int doing_callback; /* != 0 if we are doing callback */
+char *callback_script; /* script for doing callback */
+
int (*holdoff_hook) __P((void)) = NULL;
int (*new_phase_hook) __P((int)) = NULL;
{
int i, fdflags, t;
struct sigaction sa;
- char *p;
+ char *p, *connector;
struct passwd *pw;
struct timeval timo;
sigset_t mask;
}
hostname[MAXNAMELEN-1] = 0;
+ /* make sure we don't create world or group writable files. */
+ umask(umask(0777) | 022);
+
uid = getuid();
privileged = uid == 0;
slprintf(numbuf, sizeof(numbuf), "%d", uid);
for (i = 0; (protp = protocols[i]) != NULL; ++i)
if (protp->check_options != NULL)
(*protp->check_options)();
- if (demand && connector == 0) {
+ if (demand && connect_script == 0) {
option_error("connect script is required for demand-dialling\n");
exit(EXIT_OPTION_ERROR);
}
/* default holdoff to 0 if no connect script has been given */
- if (connector == 0 && !holdoff_specified)
+ if (connect_script == 0 && !holdoff_specified)
holdoff = 0;
if (using_pty) {
demand_conf();
}
+ do_callback = 0;
for (;;) {
need_holdoff = 1;
real_ttyfd = -1;
status = EXIT_OK;
++unsuccess;
+ doing_callback = do_callback;
+ do_callback = 0;
- if (demand) {
+ if (demand && !doing_callback) {
/*
* Don't do anything until we see some activity.
*/
*/
hungup = 0;
kill_link = 0;
+ connector = doing_callback? callback_script: connect_script;
if (devnam[0] != 0) {
for (;;) {
/* If the user specified the device name, become the
/* run connection script */
if ((connector && connector[0]) || initializer) {
if (real_ttyfd != -1) {
+ /* XXX do this if doing_callback == CALLBACK_DIALIN? */
if (!default_device && modem) {
setdtr(real_ttyfd, 0); /* in case modem is off hook */
sleep(1);
clear CLOCAL if modem option */
if (real_ttyfd != -1)
set_up_tty(real_ttyfd, 0);
+
+ if (doing_callback == CALLBACK_DIALIN)
+ connector = NULL;
}
/* reopen tty if necessary to wait for carrier */
* time for something from the peer. This can avoid bouncing
* our packets off his tty before he has it set up.
*/
- if (connector != NULL || ptycommand != NULL) {
+ add_fd(fd_ppp);
+ if (connect_delay != 0 && (connector != NULL || ptycommand != NULL)) {
struct timeval t;
- t.tv_sec = 1;
- t.tv_usec = 0;
+ t.tv_sec = connect_delay / 1000;
+ t.tv_usec = connect_delay % 1000;
wait_input(&t);
}
lcp_open(0); /* Start protocol */
open_ccp_flag = 0;
- add_fd(fd_ppp);
status = EXIT_NEGOTIATION_FAILED;
new_phase(PHASE_ESTABLISH);
while (phase != PHASE_DEAD) {
* XXX we may not be able to do this if the line has hung up!
*/
disconnect:
- if (disconnector && !hungup) {
+ if (disconnect_script && !hungup) {
new_phase(PHASE_DISCONNECT);
if (real_ttyfd >= 0)
set_up_tty(real_ttyfd, 1);
- if (device_script(disconnector, ttyfd, ttyfd, 0) < 0) {
+ if (device_script(disconnect_script, ttyfd, ttyfd, 0) < 0) {
warn("disconnect script failed");
} else {
info("Serial link disconnected.");
new_phase(PHASE_DORMANT);
}
+/* List of protocol names, to make our messages a little more informative. */
+struct protocol_list {
+ u_short proto;
+ const char *name;
+} protocol_list[] = {
+ { 0x21, "IP" },
+ { 0x23, "OSI Network Layer" },
+ { 0x25, "Xerox NS IDP" },
+ { 0x27, "DECnet Phase IV" },
+ { 0x29, "Appletalk" },
+ { 0x2b, "Novell IPX" },
+ { 0x2d, "VJ compressed TCP/IP" },
+ { 0x2f, "VJ uncompressed TCP/IP" },
+ { 0x31, "Bridging PDU" },
+ { 0x33, "Stream Protocol ST-II" },
+ { 0x35, "Banyan Vines" },
+ { 0x39, "AppleTalk EDDP" },
+ { 0x3b, "AppleTalk SmartBuffered" },
+ { 0x3d, "Multi-Link" },
+ { 0x3f, "NETBIOS Framing" },
+ { 0x41, "Cisco Systems" },
+ { 0x43, "Ascom Timeplex" },
+ { 0x45, "Fujitsu Link Backup and Load Balancing (LBLB)" },
+ { 0x47, "DCA Remote Lan" },
+ { 0x49, "Serial Data Transport Protocol (PPP-SDTP)" },
+ { 0x4b, "SNA over 802.2" },
+ { 0x4d, "SNA" },
+ { 0x4f, "IP6 Header Compression" },
+ { 0x6f, "Stampede Bridging" },
+ { 0xfb, "single-link compression" },
+ { 0xfd, "1st choice compression" },
+ { 0x0201, "802.1d Hello Packets" },
+ { 0x0203, "IBM Source Routing BPDU" },
+ { 0x0205, "DEC LANBridge100 Spanning Tree" },
+ { 0x0231, "Luxcom" },
+ { 0x0233, "Sigma Network Systems" },
+ { 0x8021, "Internet Protocol Control Protocol" },
+ { 0x8023, "OSI Network Layer Control Protocol" },
+ { 0x8025, "Xerox NS IDP Control Protocol" },
+ { 0x8027, "DECnet Phase IV Control Protocol" },
+ { 0x8029, "Appletalk Control Protocol" },
+ { 0x802b, "Novell IPX Control Protocol" },
+ { 0x8031, "Bridging NCP" },
+ { 0x8033, "Stream Protocol Control Protocol" },
+ { 0x8035, "Banyan Vines Control Protocol" },
+ { 0x803d, "Multi-Link Control Protocol" },
+ { 0x803f, "NETBIOS Framing Control Protocol" },
+ { 0x8041, "Cisco Systems Control Protocol" },
+ { 0x8043, "Ascom Timeplex" },
+ { 0x8045, "Fujitsu LBLB Control Protocol" },
+ { 0x8047, "DCA Remote Lan Network Control Protocol (RLNCP)" },
+ { 0x8049, "Serial Data Control Protocol (PPP-SDCP)" },
+ { 0x804b, "SNA over 802.2 Control Protocol" },
+ { 0x804d, "SNA Control Protocol" },
+ { 0x804f, "IP6 Header Compression Control Protocol" },
+ { 0x006f, "Stampede Bridging Control Protocol" },
+ { 0x80fb, "Single Link Compression Control Protocol" },
+ { 0x80fd, "Compression Control Protocol" },
+ { 0xc021, "Link Control Protocol" },
+ { 0xc023, "Password Authentication Protocol" },
+ { 0xc025, "Link Quality Report" },
+ { 0xc027, "Shiva Password Authentication Protocol" },
+ { 0xc029, "CallBack Control Protocol (CBCP)" },
+ { 0xc081, "Container Control Protocol" },
+ { 0xc223, "Challenge Handshake Authentication Protocol" },
+ { 0xc281, "Proprietary Authentication Protocol" },
+ { 0, NULL },
+};
+
+/*
+ * protocol_name - find a name for a PPP protocol.
+ */
+const char *
+protocol_name(proto)
+ int proto;
+{
+ struct protocol_list *lp;
+
+ for (lp = protocol_list; lp->proto != 0; ++lp)
+ if (proto == lp->proto)
+ return lp->name;
+ return NULL;
+}
+
/*
* get_input - called when incoming data is available.
*/
}
}
- if (debug)
- warn("Unsupported protocol (0x%x) received", protocol);
+ if (debug) {
+ const char *pname = protocol_name(protocol);
+ if (pname != NULL)
+ warn("Unsupported protocol '%s' (0x%x) received", pname, protocol);
+ else
+ warn("Unsupported protocol 0x%x received", protocol);
+ }
lcp_sprotrej(0, p - PPP_HDRLEN, len + PPP_HDRLEN);
}