/********************************************************************
*
* clean_check - Fetch the flags for the device and generate
* appropriate error messages.
*/
void clean_check(void)
{
int x;
char *s;
if (still_ppp()) {
if (ioctl(ppp_fd, 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:
s = "all had bit 7 set to 1";
break;
case SC_RCV_B7_1:
s = "all had bit 7 set to 0";
break;
case SC_RCV_EVNP:
s = "all had odd parity";
break;
case SC_RCV_ODDP:
s = "all had even parity";
break;
}
if (s != NULL) {
warn("Receive serial link is not 8-bit clean:");
warn("Problem: %s", s);
}
}
}
}
int cifaddr (int unit, int our_adr, int his_adr)
{
struct rtentry rt;
/*
* Delete the route through the device
*/
memset (&rt, '\0', sizeof (rt));
SET_SA_FAMILY (rt.rt_dst, AF_INET);
SET_SA_FAMILY (rt.rt_gateway, AF_INET);
rt.rt_dev = ifname; /* MJC */
((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = 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 && errno != ESRCH)
{
if (still_ppp())
{
syslog (LOG_ERR, "ioctl(SIOCDELRT) device route: %m");
return (0);
}
}
return 1;
}
void ppp_recv_config (int unit,int mru,u_int32_t asyncmap,int pcomp,int accomp)
{
u_int x;
MAINDEBUG ((LOG_DEBUG, "recv_config: mru = %d\n", mru));
/*
* If we were called because the link has gone down then there is nothing
* which may be done. Just return without incident.
*/
if (!still_ppp())
{
return;
}
/*
* Set the receiver parameters
*/
if (ioctl(fd, 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)
{
syslog(LOG_ERR, "ioctl(PPPIOCSRASYNCMAP): %m");
quit();
}
x = get_flags();
x = accomp ? x & ~SC_REJ_COMP_AC : x | SC_REJ_COMP_AC;
set_flags (x);
}
void ccp_flags_set (int unit, int isopen, int isup)
{
if (still_ppp()) {
int x = get_flags(ppp_dev_fd);
x = isopen? x | SC_CCP_OPEN : x &~ SC_CCP_OPEN;
x = isup? x | SC_CCP_UP : x &~ SC_CCP_UP;
set_flags (ppp_dev_fd, x);
}
}
void ppp_send_config (int unit,int mtu,u_int32_t asyncmap,int pcomp,int accomp)
{
u_int x;
struct ifreq ifr;
MAINDEBUG ((LOG_DEBUG, "send_config: mtu = %d\n", mtu));
/*
* Ensure that the link is still up.
*/
if (still_ppp())
{
/*
* 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();
}
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);
}
}
int cifdefaultroute (int unit, int gateway)
{
struct rtentry rt;
if (has_default_route)
{
memset (&rt, '\0', sizeof (rt));
SET_SA_FAMILY (rt.rt_dst, AF_INET);
SET_SA_FAMILY (rt.rt_gateway, AF_INET);
((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = gateway;
rt.rt_flags = RTF_UP | RTF_GATEWAY;
if (ioctl(sockfd, SIOCDELRT, &rt) < 0 && errno != ESRCH)
{
if (still_ppp())
{
syslog (LOG_ERR, "default route ioctl(SIOCDELRT): %m");
return 0;
}
}
}
has_default_route = 0;
return 1;
}
void disestablish_ppp(void)
{
int x;
char *s;
/*
* Fetch the flags for the device and generate appropriate error
* messages.
*/
if (still_ppp() && initdisc >= 0)
{
if (ioctl(fd, 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:
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:
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:
s = "all had bit 7 set to 0";
break;
case SC_RCV_EVNP:
s = "all had odd parity";
break;
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, "Problem: %s", s);
}
}
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;
}