/*
* main.c - Point-to-Point Protocol main module
*
- * Copyright (c) 1989 Carnegie Mellon University.
- * All rights reserved.
+ * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
*
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Carnegie Mellon University. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The name "Carnegie Mellon University" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For permission or any legal
+ * details, please contact
+ * Office of Technology Transfer
+ * Carnegie Mellon University
+ * 5000 Forbes Avenue
+ * Pittsburgh, PA 15213-3890
+ * (412) 268-4387, fax: (412) 268-7395
+ * tech-transfer@andrew.cmu.edu
+ *
+ * 4. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by Computing Services
+ * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
+ *
+ * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
+ * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#define RCSID "$Id: main.c,v 1.106 2001/04/27 23:16:13 paulus Exp $"
+#define RCSID "$Id: main.c,v 1.122 2003/02/24 12:46:37 fcusack Exp $"
#include <stdio.h>
#include <ctype.h>
#endif
#include "upap.h"
#include "chap.h"
+#include "eap.h"
#include "ccp.h"
+#include "ecp.h"
#include "pathnames.h"
+
+#ifdef USE_TDB
#include "tdb.h"
+#endif
#ifdef CBCP_SUPPORT
#include "cbcp.h"
int unsuccess; /* # unsuccessful connection attempts */
int do_callback; /* != 0 if we should do callback next */
int doing_callback; /* != 0 if we are doing callback */
+int ppp_session_number; /* Session number, for channels with such a
+ concept (eg PPPoE) */
+#ifdef USE_TDB
TDB_CONTEXT *pppdb; /* database for storing status etc. */
+#endif
+
char db_key[32];
int (*holdoff_hook) __P((void)) = NULL;
int (*new_phase_hook) __P((int)) = NULL;
+void (*snoop_recv_hook) __P((unsigned char *p, int len)) = NULL;
+void (*snoop_send_hook) __P((unsigned char *p, int len)) = NULL;
static int conn_running; /* we have a [dis]connector running */
static int devfd; /* fd of underlying device */
static struct timeval start_time; /* Time when link was started. */
struct pppd_stats link_stats;
-int link_connect_time;
+unsigned link_connect_time;
int link_stats_valid;
/*
static void bad_signal __P((int));
static void holdoff_end __P((void *));
static int reap_kids __P((int waitfor));
+
+#ifdef USE_TDB
static void update_db_entry __P((void));
static void add_db_key __P((const char *));
static void delete_db_key __P((const char *));
static void cleanup_db __P((void));
+#endif
+
static void handle_events __P((void));
+static void print_link_stats __P((void));
extern char *ttyname __P((int));
extern char *getlogin __P((void));
&ipv6cp_protent,
#endif
&ccp_protent,
+ &ecp_protent,
#ifdef IPX_CHANGE
&ipxcp_protent,
#endif
#ifdef AT_CHANGE
&atcp_protent,
#endif
+ &eap_protent,
NULL
};
struct protent *protp;
char numbuf[16];
+ link_stats_valid = 0;
new_phase(PHASE_INITIALIZE);
/*
init_pr_log(NULL, LOG_INFO);
print_options(pr_log, NULL);
end_pr_log();
- if (dryrun)
- die(0);
}
+ /*
+ * Early check for remote number authorization.
+ */
+ if (!auth_number()) {
+ warn("calling number %q is not authorized", remote_number);
+ exit(EXIT_CNID_AUTH_FAILED);
+ }
+
+ if (dryrun)
+ die(0);
+
/*
* Initialize system-dependent stuff.
*/
sys_init();
+#ifdef USE_TDB
pppdb = tdb_open(_PATH_PPPDB, 0, 0, O_RDWR|O_CREAT, 0644);
if (pppdb != NULL) {
slprintf(db_key, sizeof(db_key), "pppd%d", getpid());
multilink = 0;
}
}
+#endif
/*
* Detach ourselves from the terminal, if required,
/*
* Open the loopback channel and set it up to be the ppp interface.
*/
+#ifdef USE_TDB
tdb_writelock(pppdb);
+#endif
fd_loop = open_ppp_loopback();
set_ifunit(1);
+#ifdef USE_TDB
tdb_writeunlock(pppdb);
-
+#endif
/*
* Configure the interface and mark it up, etc.
*/
goto fail;
/* set up the serial device as a ppp interface */
+#ifdef USE_TDB
tdb_writelock(pppdb);
+#endif
fd_ppp = the_channel->establish_ppp(devfd);
if (fd_ppp < 0) {
+#ifdef USE_TDB
tdb_writeunlock(pppdb);
+#endif
status = EXIT_FATAL_ERROR;
goto disconnect;
}
if (!demand && ifunit >= 0)
set_ifunit(1);
+#ifdef USE_TDB
tdb_writeunlock(pppdb);
+#endif
/*
* Start opening the connection and wait for
* incoming events (reply, timeout, etc.).
*/
- notice("Connect: %s <--> %s", ifname, ppp_devnam);
+ if (ifunit >= 0)
+ notice("Connect: %s <--> %s", ifname, ppp_devnam);
+ else
+ notice("Starting negotiation on %s", ppp_devnam);
gettimeofday(&start_time, NULL);
- link_stats_valid = 0;
script_unsetenv("CONNECT_TIME");
script_unsetenv("BYTES_SENT");
script_unsetenv("BYTES_RCVD");
}
}
- /*
- * Print connect time and statistics.
- */
- if (link_stats_valid) {
- int t = (link_connect_time + 5) / 6; /* 1/10ths of minutes */
- info("Connect time %d.%d minutes.", t/10, t%10);
- info("Sent %u bytes, received %u bytes.",
- link_stats.bytes_out, link_stats.bytes_in);
- }
+ print_link_stats();
/*
* Delete pid file before disestablishing ppp. Otherwise it
*/
if (!demand) {
if (pidfilename[0] != 0
- && unlink(pidfilename) < 0 && errno != ENOENT)
+ && unlink(pidfilename) < 0 && errno != ENOENT)
warn("unable to delete pid file %s: %m", pidfilename);
pidfilename[0] = 0;
}
if (!demand) {
if (pidfilename[0] != 0
- && unlink(pidfilename) < 0 && errno != ENOENT)
+ && unlink(pidfilename) < 0 && errno != ENOENT)
warn("unable to delete pid file %s: %m", pidfilename);
pidfilename[0] = 0;
}
return;
}
- if (debug /*&& (debugflags & DBG_INPACKET)*/)
- dbglog("rcvd %P", p, len);
-
if (len < PPP_HDRLEN) {
- MAINDEBUG(("io(): Received short packet."));
+ dbglog("received short packet:%.*B", len, p);
return;
}
+ dump_packet("rcvd", p, len);
+ if (snoop_recv_hook) snoop_recv_hook(p, len);
+
p += 2; /* Skip address and control */
GETSHORT(protocol, p);
len -= PPP_HDRLEN;
* Toss all non-LCP packets unless LCP is OPEN.
*/
if (protocol != PPP_LCP && lcp_fsm[0].state != OPENED) {
- MAINDEBUG(("get_input: Received non-LCP packet when LCP not open."));
+ dbglog("Discarded non-LCP packet when LCP not open");
return;
}
*/
if (phase <= PHASE_AUTHENTICATE
&& !(protocol == PPP_LCP || protocol == PPP_LQR
- || protocol == PPP_PAP || protocol == PPP_CHAP)) {
- MAINDEBUG(("get_input: discarding proto 0x%x in phase %d",
- protocol, phase));
+ || protocol == PPP_PAP || protocol == PPP_CHAP ||
+ protocol == PPP_EAP)) {
+ dbglog("discarding proto 0x%x in phase %d",
+ protocol, phase);
return;
}
die(status)
int status;
{
+ print_link_stats();
cleanup();
notify(exitnotify, status);
syslog(LOG_INFO, "Exit.");
if (the_channel->cleanup)
(*the_channel->cleanup)();
- if (pidfilename[0] != 0 && unlink(pidfilename) < 0 && errno != ENOENT)
+ if (pidfilename[0] != 0 && unlink(pidfilename) < 0 && errno != ENOENT)
warn("unable to delete pid file %s: %m", pidfilename);
pidfilename[0] = 0;
- if (linkpidfile[0] != 0 && unlink(linkpidfile) < 0 && errno != ENOENT)
+ if (linkpidfile[0] != 0 && unlink(linkpidfile) < 0 && errno != ENOENT)
warn("unable to delete pid file %s: %m", linkpidfile);
linkpidfile[0] = 0;
+#ifdef USE_TDB
if (pppdb != NULL)
cleanup_db();
+#endif
+
+}
+
+void
+print_link_stats()
+{
+ /*
+ * Print connect time and statistics.
+ */
+ if (link_stats_valid) {
+ int t = (link_connect_time + 5) / 6; /* 1/10ths of minutes */
+ info("Connect time %d.%d minutes.", t/10, t%10);
+ info("Sent %u bytes, received %u bytes.",
+ link_stats.bytes_out, link_stats.bytes_in);
+ }
}
/*
link_connect_time = now.tv_sec - start_time.tv_sec;
link_stats_valid = 1;
- slprintf(numbuf, sizeof(numbuf), "%d", link_connect_time);
+ slprintf(numbuf, sizeof(numbuf), "%u", link_connect_time);
script_setenv("CONNECT_TIME", numbuf, 0);
- slprintf(numbuf, sizeof(numbuf), "%d", link_stats.bytes_out);
+ slprintf(numbuf, sizeof(numbuf), "%u", link_stats.bytes_out);
script_setenv("BYTES_SENT", numbuf, 0);
- slprintf(numbuf, sizeof(numbuf), "%d", link_stats.bytes_in);
+ slprintf(numbuf, sizeof(numbuf), "%u", link_stats.bytes_in);
script_setenv("BYTES_RCVD", numbuf, 0);
}
void *arg;
{
struct callout **copp, *freep;
-
+
MAINDEBUG(("Untimeout %p:%p.", func, arg));
-
+
/*
* Find first matching timeout and remove it from the list.
*/
}
/* dup in and out to fds > 2 */
- in = dup(in);
- out = dup(out);
- if (log_to_fd >= 0) {
- errfd = dup(log_to_fd);
- } else {
- errfd = open(_PATH_CONNERRS, O_WRONLY | O_APPEND | O_CREAT, 0600);
+ {
+ int fd1 = in, fd2 = out, fd3 = log_to_fd;
+
+ in = dup(in);
+ out = dup(out);
+ if (log_to_fd >= 0) {
+ errfd = dup(log_to_fd);
+ } else {
+ errfd = open(_PATH_CONNERRS, O_WRONLY | O_APPEND | O_CREAT, 0600);
+ }
+ close(fd1);
+ close(fd2);
+ close(fd3);
}
/* close fds 0 - 2 and any others we can think of */
#ifdef BSD
/* Force the priority back to zero if pppd is running higher. */
if (setpriority (PRIO_PROCESS, 0, 0) < 0)
- warn("can't reset priority to 0: %m");
+ warn("can't reset priority to 0: %m");
#endif
/* SysV recommends a second fork at this point. */
(chp? chp->prog: "??"), pid, WTERMSIG(status));
} else if (debug)
dbglog("Script %s finished (pid %d), status = 0x%x",
- (chp? chp->prog: "??"), pid, status);
+ (chp? chp->prog: "??"), pid,
+ WIFEXITED(status) ? WEXITSTATUS(status) : status);
if (chp && chp->done)
(*chp->done)(chp->arg);
if (chp)
}
/*
- * notify - call a set of functions registered with add_notify.
+ * notify - call a set of functions registered with add_notifier.
*/
void
notify(notif, val)
if (script_env != 0) {
for (i = 0; (p = script_env[i]) != 0; ++i) {
if (strncmp(p, var, varl) == 0 && p[varl] == '=') {
+#ifdef USE_TDB
if (p[-1] && pppdb != NULL)
delete_db_key(p);
+#endif
free(p-1);
script_env[i] = newstring;
+#ifdef USE_TDB
if (iskey && pppdb != NULL)
add_db_key(newstring);
update_db_entry();
+#endif
return;
}
}
script_env[i] = newstring;
script_env[i+1] = 0;
+#ifdef USE_TDB
if (pppdb != NULL) {
if (iskey)
add_db_key(newstring);
update_db_entry();
}
+#endif
}
/*
return;
for (i = 0; (p = script_env[i]) != 0; ++i) {
if (strncmp(p, var, vl) == 0 && p[vl] == '=') {
+#ifdef USE_TDB
if (p[-1] && pppdb != NULL)
delete_db_key(p);
+#endif
free(p-1);
while ((script_env[i] = script_env[i+1]) != 0)
++i;
break;
}
}
+#ifdef USE_TDB
if (pppdb != NULL)
update_db_entry();
+#endif
}
+#ifdef USE_TDB
/*
* update_db_entry - update our entry in the database.
*/
if (tdb_store(pppdb, key, dbuf, TDB_REPLACE))
error("tdb_store failed: %s", tdb_error(pppdb));
+ if (vbuf)
+ free(vbuf);
+
}
/*
if (p[-1])
delete_db_key(p);
}
+#endif /* USE_TDB */
projects / ppp.git / blobdiff