#include <mntent.h>
#include <signal.h>
#include <fcntl.h>
+#include <ctype.h>
#include <net/if.h>
#include <net/ppp_defs.h>
static char *lock_file;
-#define MAX_IFS 32
+#define MAX_IFS 100
#define FLAGS_GOOD (IFF_UP | IFF_BROADCAST)
#define FLAGS_MASK (IFF_UP | IFF_BROADCAST | \
{
int flags;
- if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &flags) < 0)
+ if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &flags) < 0)
{
syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m");
quit();
{
MAINDEBUG ((LOG_DEBUG, "set flags = %x\n", flags));
- if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &flags) < 0)
+ if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &flags) < 0)
{
syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS, %x): %m", flags);
quit();
int set_kdebugflag (int requested_level)
{
- if (ioctl(fd, PPPIOCGDEBUG, &prev_kdebugflag) < 0)
+ if (ioctl(ttyfd, PPPIOCGDEBUG, &prev_kdebugflag) < 0)
{
syslog(LOG_ERR, "ioctl(PPPIOCGDEBUG): %m");
return (0);
if (prev_kdebugflag != requested_level)
{
- if (ioctl(fd, PPPIOCSDEBUG, &requested_level) < 0)
+ if (ioctl(ttyfd, PPPIOCSDEBUG, &requested_level) < 0)
{
syslog (LOG_ERR, "ioctl(PPPIOCSDEBUG): %m");
return (0);
}
- MAINDEBUG ((LOG_INFO, "set kernel debugging level to %d", requested_level));
+ MAINDEBUG ((LOG_INFO, "set kernel debugging level to %d",
+ requested_level));
}
return (1);
}
* establish_ppp - Turn the serial port into a ppp interface.
*/
-void establish_ppp (void)
+void establish_ppp (int fd)
{
int pppdisc = N_PPP;
int sig = SIGIO;
* This shouldn't call die() because it's called from die().
*/
-void disestablish_ppp(void)
+void disestablish_ppp(int fd)
{
int x;
char *s;
syslog(LOG_WARNING, "Couldn't restore device fd flags: %m");
initfdflags = -1;
-/*
- * If this is no longer PPP mode then there is nothing that can be done
- * about restoring the previous mode.
- */
- if (!still_ppp())
+ if (still_ppp() && initdisc >= 0)
{
- initdisc = -1;
- return;
+ set_kdebugflag (prev_kdebugflag);
+
+ if (ioctl(fd, TIOCSETD, &initdisc) < 0)
+ {
+ syslog(LOG_WARNING, "ioctl(TIOCSETD): %m");
+ }
+
+ if (ioctl(fd, TIOCNXCL, 0) < 0)
+ {
+ syslog (LOG_WARNING, "ioctl(TIOCNXCL): %m");
+ }
}
+ initdisc = -1;
+ }
+
/*
- * Check whether the link seems not to be 8-bit clean.
+ * clean_check - Fetch the flags for the device and generate
+ * appropriate error messages.
*/
- if (initdisc >= 0)
+void clean_check(void)
+ {
+ if (still_ppp() && initdisc >= 0)
{
- if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) == 0)
+ if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) == 0)
{
s = NULL;
switch (~x & (SC_RCV_B7_0|SC_RCV_B7_1|SC_RCV_EVNP|SC_RCV_ODDP))
{
- case SC_RCV_B7_0 | SC_RCV_B7_1 | SC_RCV_EVNP | SC_RCV_ODDP:
+ case SC_RCV_B7_0 | SC_RCV_B7_1 | SC_RCV_EVNP | SC_RCV_ODDP:
s = "nothing was received";
break;
-
- case SC_RCV_B7_0:
- case SC_RCV_B7_0 | SC_RCV_EVNP:
- case SC_RCV_B7_0 | SC_RCV_ODDP:
- case SC_RCV_B7_0 | SC_RCV_ODDP | SC_RCV_EVNP:
+
+ case SC_RCV_B7_0:
+ case SC_RCV_B7_0 | SC_RCV_EVNP:
+ case SC_RCV_B7_0 | SC_RCV_ODDP:
+ case SC_RCV_B7_0 | SC_RCV_ODDP | SC_RCV_EVNP:
s = "all had bit 7 set to 1";
break;
-
- case SC_RCV_B7_1:
- case SC_RCV_B7_1 | SC_RCV_EVNP:
- case SC_RCV_B7_1 | SC_RCV_ODDP:
- case SC_RCV_B7_1 | SC_RCV_ODDP | SC_RCV_EVNP:
+
+ case SC_RCV_B7_1:
+ case SC_RCV_B7_1 | SC_RCV_EVNP:
+ case SC_RCV_B7_1 | SC_RCV_ODDP:
+ case SC_RCV_B7_1 | SC_RCV_ODDP | SC_RCV_EVNP:
s = "all had bit 7 set to 0";
break;
-
- case SC_RCV_EVNP:
+
+ case SC_RCV_EVNP:
s = "all had odd parity";
break;
-
- case SC_RCV_ODDP:
+
+ case SC_RCV_ODDP:
s = "all had even parity";
break;
}
-
+
if (s != NULL)
{
- syslog(LOG_WARNING, "Receive serial link is not 8-bit clean:");
+ syslog(LOG_WARNING, "Receive serial link is not"
+ " 8-bit clean:");
syslog(LOG_WARNING, "Problem: %s", s);
}
}
-
- set_kdebugflag (prev_kdebugflag);
-
- if (ioctl(fd, TIOCSETD, &initdisc) < 0)
- {
- syslog(LOG_ERR, "ioctl(TIOCSETD): %m");
- }
-
- if (ioctl(fd, TIOCNXCL, 0) < 0)
- {
- syslog (LOG_WARNING, "ioctl(TIOCNXCL): %m");
- }
-
- initdisc = -1;
}
}
+
/*
* List of valid speeds.
* restore_tty - restore the terminal to the saved settings.
*/
-void restore_tty (void)
+void restore_tty (int fd)
{
if (restore_term)
{
log_packet(p, len, "sent ");
}
- if (write(fd, p, len) < 0)
+ if (write(ttyfd, p, len) < 0)
{
if (errno == EWOULDBLOCK || errno == ENOBUFS
|| errno == ENXIO || errno == EIO)
}
/*
- * wait_input - wait until there is data available on fd,
+ * wait_input - wait until there is data available on ttyfd,
* for the length of time specified by *timo (indefinite
* if timo is NULL).
*/
int n;
FD_ZERO(&ready);
- FD_SET(fd, &ready);
+ FD_SET(ttyfd, &ready);
- n = select(fd+1, &ready, NULL, &ready, timo);
+ n = select(ttyfd+1, &ready, NULL, &ready, timo);
if (n < 0 && errno != EINTR)
{
syslog(LOG_ERR, "select: %m");
{
int len;
- len = read(fd, buf, PPP_MTU + PPP_HDRLEN);
+ len = read(ttyfd, buf, PPP_MTU + PPP_HDRLEN);
if (len < 0)
{
if (errno == EWOULDBLOCK)
{
return -1;
}
- syslog(LOG_ERR, "read(fd): %m");
+ syslog(LOG_ERR, "read: %m");
die(1);
}
return len;
MAINDEBUG ((LOG_DEBUG, "send_config: mtu = %d\n", mtu));
/*
- * If we were called because the link has gone down then there is nothing
- * which may be done. Just return without incident.
+ * Ensure that the link is still up.
*/
- if (!still_ppp())
+ if (still_ppp())
{
- return;
- }
/*
* Set the MTU and other parameters for the ppp device
*/
- memset (&ifr, '\0', sizeof (ifr));
- strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
- ifr.ifr_mtu = mtu;
-
- if (ioctl(sockfd, SIOCSIFMTU, (caddr_t) &ifr) < 0)
- {
- syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m");
- quit();
- }
+ memset (&ifr, '\0', sizeof (ifr));
+ strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
+ ifr.ifr_mtu = mtu;
+
+ if (ioctl(sockfd, SIOCSIFMTU, (caddr_t) &ifr) < 0)
+ {
+ syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m");
+ quit();
+ }
+
+ MAINDEBUG ((LOG_DEBUG, "send_config: asyncmap = %lx\n", asyncmap));
+ if (ioctl(ttyfd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0)
+ {
+ syslog(LOG_ERR, "ioctl(PPPIOCSASYNCMAP): %m");
+ quit();
+ }
- MAINDEBUG ((LOG_DEBUG, "send_config: asyncmap = %lx\n", asyncmap));
- if (ioctl(fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0)
- {
- syslog(LOG_ERR, "ioctl(PPPIOCSASYNCMAP): %m");
- quit();
+ x = get_flags();
+ x = pcomp ? x | SC_COMP_PROT : x & ~SC_COMP_PROT;
+ x = accomp ? x | SC_COMP_AC : x & ~SC_COMP_AC;
+ set_flags(x);
}
-
- x = get_flags();
- x = pcomp ? x | SC_COMP_PROT : x & ~SC_COMP_PROT;
- x = accomp ? x | SC_COMP_AC : x & ~SC_COMP_AC;
- set_flags(x);
}
/*
MAINDEBUG ((LOG_DEBUG, "set_xaccm: %08lx %08lx %08lx %08lx\n",
accm[0], accm[1], accm[2], accm[3]));
- if (ioctl(fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY)
+ if (ioctl(ttyfd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY)
{
syslog(LOG_WARNING, "ioctl(set extended ACCM): %m");
}
/*
* Set the receiver parameters
*/
- if (ioctl(fd, PPPIOCSMRU, (caddr_t) &mru) < 0)
+ if (ioctl(ttyfd, PPPIOCSMRU, (caddr_t) &mru) < 0)
{
syslog(LOG_ERR, "ioctl(PPPIOCSMRU): %m");
}
MAINDEBUG ((LOG_DEBUG, "recv_config: asyncmap = %lx\n", asyncmap));
- if (ioctl(fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0)
+ if (ioctl(ttyfd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0)
{
syslog(LOG_ERR, "ioctl(PPPIOCSRASYNCMAP): %m");
quit();
data.length = opt_len;
data.transmit = for_transmit;
- if (ioctl(fd, PPPIOCSCOMPRESS, (caddr_t) &data) >= 0)
- return 1;
+ if (ioctl(ttyfd, PPPIOCSCOMPRESS, (caddr_t) &data) >= 0)
+ {
+ return 1;
+ }
return (errno == ENOBUFS)? 0: -1;
}
if (vjcomp)
{
- if (ioctl (fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0)
+ if (ioctl (ttyfd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0)
{
syslog (LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
vjcomp = 0;
((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = his_adr;
rt.rt_flags = RTF_UP | RTF_HOST;
- if (ioctl(sockfd, SIOCDELRT, &rt) < 0)
+ if (ioctl(sockfd, SIOCDELRT, &rt) < 0 && errno != ESRCH)
{
- syslog (LOG_ERR, "ioctl(SIOCDELRT) device route: %m");
- return (0);
+ if (still_ppp())
+ {
+ syslog (LOG_ERR, "ioctl(SIOCDELRT) device route: %m");
+ return (0);
+ }
}
return 1;
}
*/
FILE *route_fd = (FILE *) 0;
-static char route_buffer [100];
+static char route_buffer [512];
static char *path_to_route (void);
static int open_route_table (void);
syslog (LOG_ERR, "can not open %s: %m", path);
return 0;
}
-
- /* read and discard the header line. */
- if (fgets (route_buffer, sizeof (route_buffer), route_fd) == (char *) 0)
- {
- close_route_table();
- return 0;
- }
return 1;
}
{
static char delims[] = " \t\n";
char *dev_ptr, *ptr, *dst_ptr, *gw_ptr, *flag_ptr;
+
+ memset (rt, '\0', sizeof (struct rtentry));
- if (fgets (route_buffer, sizeof (route_buffer), route_fd) == (char *) 0)
+ for (;;)
{
- return 0;
- }
-
- memset (rt, '\0', sizeof (struct rtentry));
+ if (fgets (route_buffer, sizeof (route_buffer), route_fd) ==
+ (char *) 0)
+ {
+ return 0;
+ }
- dev_ptr = strtok (route_buffer, delims); /* interface name */
- dst_ptr = strtok (NULL, delims); /* destination address */
- gw_ptr = strtok (NULL, delims); /* gateway */
- flag_ptr = strtok (NULL, delims); /* flags */
+ dev_ptr = strtok (route_buffer, delims); /* interface name */
+ dst_ptr = strtok (NULL, delims); /* destination address */
+ gw_ptr = strtok (NULL, delims); /* gateway */
+ flag_ptr = strtok (NULL, delims); /* flags */
+
+ if (flag_ptr == (char *) 0) /* assume that we failed, somewhere. */
+ {
+ return 0;
+ }
+
+ /* Discard that stupid header line which should never
+ * have been there in the first place !! */
+ if (isxdigit (*dst_ptr) && isxdigit (*gw_ptr) && isxdigit (*flag_ptr))
+ {
+ break;
+ }
+ }
((struct sockaddr_in *) &rt->rt_dst)->sin_addr.s_addr =
strtoul (dst_ptr, NULL, 16);
((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = gateway;
rt.rt_flags = RTF_UP | RTF_GATEWAY;
- if (ioctl(sockfd, SIOCDELRT, &rt) < 0)
+ if (ioctl(sockfd, SIOCDELRT, &rt) < 0 && errno != ESRCH)
{
- if (errno != ENOENT || still_ppp())
+ if (still_ppp())
{
syslog (LOG_ERR, "default route ioctl(SIOCDELRT): %m");
return 0;