*/
#ifndef lint
-static char rcsid[] = "$Id: sys-ultrix.c,v 1.1 1994/04/18 04:11:11 paulus Exp $";
+static char rcsid[] = "$Id: sys-ultrix.c,v 1.14 1995/08/11 02:36:26 paulus Exp $";
#endif
/*
* TODO:
*/
+#include <stdio.h>
+#include <stdlib.h>
#include <syslog.h>
-#include <sys/ioctl.h>
+#include <string.h>
+#include <termios.h>
+#include <utmp.h>
#include <sys/types.h>
+#include <sys/file.h>
#include <sys/socket.h>
+#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/errno.h>
+#include <sys/stat.h>
#include <net/if.h>
-
+#include <net/ppp_defs.h>
#include <net/if_ppp.h>
#include <net/route.h>
#include <netinet/in.h>
#include "pppd.h"
-#include "ppp.h"
-static int initdisc = -1; /* Initial TTY discipline */
+static int initdisc = -1; /* Initial TTY discipline */
+
+static int restore_term; /* 1 => we've munged the terminal */
+static struct termios inittermios; /* Initial TTY termios */
+static struct winsize wsinfo; /* Initial window size info */
+
+static char *lock_file;
+
+int sockfd; /* socket for doing interface ioctls */
+
+/*
+ * sys_init - System-dependent initialization.
+ */
+void
+sys_init()
+{
+ openlog("pppd", LOG_PID);
+
+ /* Get an internet socket for doing socket ioctl's on. */
+ if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ syslog(LOG_ERR, "Couldn't create IP socket: %m");
+ die(1);
+ }
+}
+
+/*
+ * note_debug_level - note a change in the debug level.
+ */
+void
+note_debug_level()
+{
+}
+
+
+/*
+ * daemon - Detach us from the terminal session.
+ */
+int
+daemon(nochdir, noclose)
+ int nochdir, noclose;
+{
+ int pid;
+
+ if ((pid = fork()) < 0)
+ return -1;
+ if (pid != 0)
+ exit(0); /* parent dies */
+ setsid();
+ if (!nochdir)
+ chdir("/");
+ if (!noclose) {
+ fclose(stdin); /* don't need stdin, stdout, stderr */
+ fclose(stdout);
+ fclose(stderr);
+ }
+ return 0;
+}
+
+
+/*
+ * ppp_available - check whether the system has any ppp interfaces
+ * (in fact we check whether we can do an ioctl on ppp0).
+ */
+
+int
+ppp_available()
+{
+ int s, ok;
+ struct ifreq ifr;
+
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
+ return 1; /* can't tell - maybe we're not root */
+
+ strncpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name));
+ ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0;
+ close(s);
+
+ return ok;
+}
/*
establish_ppp()
{
int pppdisc = PPPDISC;
+ int x;
if (ioctl(fd, TIOCGETD, &initdisc) < 0) {
syslog(LOG_ERR, "ioctl(TIOCGETD): %m");
}
+/*
+ * List of valid speeds.
+ */
+struct speed {
+ int speed_int, speed_val;
+} speeds[] = {
+#ifdef B50
+ { 50, B50 },
+#endif
+#ifdef B75
+ { 75, B75 },
+#endif
+#ifdef B110
+ { 110, B110 },
+#endif
+#ifdef B134
+ { 134, B134 },
+#endif
+#ifdef B150
+ { 150, B150 },
+#endif
+#ifdef B200
+ { 200, B200 },
+#endif
+#ifdef B300
+ { 300, B300 },
+#endif
+#ifdef B600
+ { 600, B600 },
+#endif
+#ifdef B1200
+ { 1200, B1200 },
+#endif
+#ifdef B1800
+ { 1800, B1800 },
+#endif
+#ifdef B2000
+ { 2000, B2000 },
+#endif
+#ifdef B2400
+ { 2400, B2400 },
+#endif
+#ifdef B3600
+ { 3600, B3600 },
+#endif
+#ifdef B4800
+ { 4800, B4800 },
+#endif
+#ifdef B7200
+ { 7200, B7200 },
+#endif
+#ifdef B9600
+ { 9600, B9600 },
+#endif
+#ifdef B19200
+ { 19200, B19200 },
+#endif
+#ifdef B38400
+ { 38400, B38400 },
+#endif
+#ifdef EXTA
+ { 19200, EXTA },
+#endif
+#ifdef EXTB
+ { 38400, EXTB },
+#endif
+#ifdef B57600
+ { 57600, B57600 },
+#endif
+#ifdef B115200
+ { 115200, B115200 },
+#endif
+ { 0, 0 }
+};
+
+/*
+ * Translate from bits/second to a speed_t.
+ */
+int
+translate_speed(bps)
+ int bps;
+{
+ struct speed *speedp;
+
+ if (bps == 0)
+ return 0;
+ for (speedp = speeds; speedp->speed_int; speedp++)
+ if (bps == speedp->speed_int)
+ return speedp->speed_val;
+ syslog(LOG_WARNING, "speed %d not supported", bps);
+ return 0;
+}
+
+/*
+ * Translate from a speed_t to bits/second.
+ */
+int
+baud_rate_of(speed)
+ int speed;
+{
+ struct speed *speedp;
+
+ if (speed == 0)
+ return 0;
+ for (speedp = speeds; speedp->speed_int; speedp++)
+ if (speed == speedp->speed_val)
+ return speedp->speed_int;
+ return 0;
+}
+
+/*
+ * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
+ * at the requested speed, etc. If `local' is true, set CLOCAL
+ * regardless of whether the modem option was specified.
+ */
+set_up_tty(fd, local)
+ int fd, local;
+{
+ int speed, x;
+ struct termios tios;
+
+ if (tcgetattr(fd, &tios) < 0) {
+ syslog(LOG_ERR, "tcgetattr: %m");
+ die(1);
+ }
+
+ if (!restore_term) {
+ inittermios = tios;
+ ioctl(fd, TIOCGWINSZ, &wsinfo);
+ }
+
+ tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
+#ifdef CRTSCTS
+ if (crtscts > 0)
+ tios.c_cflag |= CRTSCTS;
+ else if (crtscts < 0)
+ tios.c_cflag &= ~CRTSCTS;
+#endif /* CRTSCTS */
+
+ tios.c_cflag |= CS8 | CREAD | HUPCL;
+ if (local || !modem)
+ tios.c_cflag |= CLOCAL;
+ tios.c_iflag = IGNBRK | IGNPAR;
+ tios.c_oflag = 0;
+ tios.c_lflag = 0;
+ tios.c_cc[VMIN] = 1;
+ tios.c_cc[VTIME] = 0;
+
+ if (crtscts == 2) {
+ tios.c_iflag |= IXOFF;
+ tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
+ tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
+ }
+
+ speed = translate_speed(inspeed);
+ if (speed) {
+ cfsetospeed(&tios, speed);
+ cfsetispeed(&tios, speed);
+ } else {
+ speed = cfgetospeed(&tios);
+ /*
+ * We can't proceed if the serial port speed is B0,
+ * since that implies that the serial port is disabled.
+ */
+ if (speed == B0) {
+ syslog(LOG_ERR, "Baud rate for %s is 0; need explicit baud rate",
+ devnam);
+ die(1);
+ }
+ }
+
+ if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) {
+ syslog(LOG_ERR, "tcsetattr: %m");
+ die(1);
+ }
+
+ x = 0;
+ if (ioctl(fd, (crtscts || modem)? TIOCMODEM: TIOCNMODEM, &x) < 0)
+ syslog(LOG_WARNING, "TIOC(N)MODEM: %m");
+ if (ioctl(fd, (local || !modem)? TIOCNCAR: TIOCCAR) < 0)
+ syslog(LOG_WARNING, "TIOC(N)CAR: %m");
+
+ baud_rate = inspeed = baud_rate_of(speed);
+ restore_term = TRUE;
+}
+
+/*
+ * restore_tty - restore the terminal to the saved settings.
+ */
+void
+restore_tty()
+{
+ if (restore_term) {
+ if (!default_device) {
+ /*
+ * Turn off echoing, because otherwise we can get into
+ * a loop with the tty and the modem echoing to each other.
+ * We presume we are the sole user of this tty device, so
+ * when we close it, it will revert to its defaults anyway.
+ */
+ inittermios.c_lflag &= ~(ECHO | ECHONL);
+ }
+ if (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
+ if (errno != ENXIO)
+ syslog(LOG_WARNING, "tcsetattr: %m");
+ ioctl(fd, TIOCSWINSZ, &wsinfo);
+ restore_term = FALSE;
+ }
+}
+
+/*
+ * setdtr - control the DTR line on the serial port.
+ * This is called from die(), so it shouldn't call die().
+ */
+setdtr(fd, on)
+int fd, on;
+{
+ int modembits = TIOCM_DTR;
+
+ ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
+}
+
+
/*
* output - Output PPP packet.
*/
}
+/*
+ * wait_input - wait until there is data available on fd,
+ * for the length of time specified by *timo (indefinite
+ * if timo is NULL).
+ */
+wait_input(timo)
+ struct timeval *timo;
+{
+ fd_set ready;
+ int n;
+
+ FD_ZERO(&ready);
+ FD_SET(fd, &ready);
+ n = select(fd+1, &ready, NULL, &ready, timo);
+ if (n < 0 && errno != EINTR) {
+ syslog(LOG_ERR, "select: %m");
+ die(1);
+ }
+}
+
+
/*
* read_packet - get a PPP packet from the serial device.
*/
{
int len;
- if ((len = read(fd, buf, MTU + DLLHEADERLEN)) < 0) {
- if (errno == EWOULDBLOCK) {
- MAINDEBUG((LOG_DEBUG, "read(fd): EWOULDBLOCK"));
+ if ((len = read(fd, buf, PPP_MTU + PPP_HDRLEN)) < 0) {
+ if (errno == EWOULDBLOCK || errno == EINTR) {
+ MAINDEBUG((LOG_DEBUG, "read(fd): %m"));
return -1;
}
syslog(LOG_ERR, "read(fd): %m");
void
ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
int unit, mtu;
- u_long asyncmap;
+ u_int32_t asyncmap;
int pcomp, accomp;
{
u_int x;
- struct ifreq ifr;
- strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
- ifr.ifr_mtu = mtu;
- if (ioctl(s, SIOCSIFMTU, (caddr_t) &ifr) < 0) {
- syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m");
+ if (ioctl(fd, PPPIOCSMTU, &mtu) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSMTU): %m");
quit();
}
void
ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
int unit, mru;
- u_long asyncmap;
+ u_int32_t asyncmap;
int pcomp, accomp;
{
int x;
}
}
+/*
+ * ccp_test - ask kernel whether a given compression method
+ * is acceptable for use.
+ */
+ccp_test(unit, opt_ptr, opt_len, for_transmit)
+ int unit, opt_len, for_transmit;
+ u_char *opt_ptr;
+{
+ struct ppp_option_data data;
+
+ data.ptr = opt_ptr;
+ data.length = opt_len;
+ data.transmit = for_transmit;
+ return ioctl(fd, PPPIOCSCOMPRESS, (caddr_t) &data) >= 0;
+}
+
+/*
+ * ccp_flags_set - inform kernel about the current state of CCP.
+ */
+void
+ccp_flags_set(unit, isopen, isup)
+ int unit, isopen, isup;
+{
+ int x;
+
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
+ return;
+ }
+ x = isopen? x | SC_CCP_OPEN: x &~ SC_CCP_OPEN;
+ x = isup? x | SC_CCP_UP: x &~ SC_CCP_UP;
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0)
+ syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+}
+
+/*
+ * ccp_fatal_error - returns 1 if decompression was disabled as a
+ * result of an error detected after decompression of a packet,
+ * 0 otherwise. This is necessary because of patent nonsense.
+ */
+int
+ccp_fatal_error(unit)
+ int unit;
+{
+ int x;
+
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m");
+ return 0;
+ }
+ return x & SC_DC_FERROR;
+}
+
/*
* sifvjcomp - config tcp header compression
*/
/*
* sifup - Config the interface up and enable IP packets to pass.
*/
+#ifndef SC_ENABLE_IP
+#define SC_ENABLE_IP 0x100 /* compat for old versions of kernel code */
+#endif
+
int
sifup(u)
+ int u;
{
struct ifreq ifr;
u_int x;
+ struct npioctl npi;
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
- if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m");
return 0;
}
ifr.ifr_flags |= IFF_UP;
- if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
return 0;
}
- if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
- syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
- return 0;
- }
- x |= SC_ENABLE_IP;
- if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
- syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
- return 0;
+ npi.protocol = PPP_IP;
+ npi.mode = NPMODE_PASS;
+ if (ioctl(fd, PPPIOCSNPMODE, &npi) < 0) {
+ if (errno != ENOTTY) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSNPMODE): %m");
+ return 0;
+ }
+ /* for backwards compatibility */
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
+ return 0;
+ }
+ x |= SC_ENABLE_IP;
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+ return 0;
+ }
}
return 1;
}
*/
int
sifdown(u)
+ int u;
{
struct ifreq ifr;
u_int x;
int rv;
+ struct npioctl npi;
rv = 1;
- if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
- syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
- rv = 0;
- } else {
- x &= ~SC_ENABLE_IP;
- if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
- syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+ npi.protocol = PPP_IP;
+ npi.mode = NPMODE_ERROR;
+ if (ioctl(fd, PPPIOCSNPMODE, (caddr_t) &npi) < 0) {
+ if (errno != ENOTTY) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSNPMODE): %m");
rv = 0;
+ } else {
+ /* backwards compatibility */
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
+ rv = 0;
+ } else {
+ x &= ~SC_ENABLE_IP;
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+ rv = 0;
+ }
+ }
}
}
+
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
- if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m");
rv = 0;
} else {
ifr.ifr_flags &= ~IFF_UP;
- if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
rv = 0;
}
*/
int
sifaddr(u, o, h, m)
+ int u;
+ u_int32_t o, h, m;
{
int ret;
struct ifreq ifr;
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
SET_SA_FAMILY(ifr.ifr_addr, AF_INET);
((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o;
- if (ioctl(s, SIOCSIFADDR, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCSIFADDR, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl(SIOCSIFADDR): %m");
ret = 0;
}
((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h;
- if (ioctl(s, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl(SIOCSIFDSTADDR): %m");
ret = 0;
}
if (m != 0) {
((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = m;
syslog(LOG_INFO, "Setting interface mask to %s\n", ip_ntoa(m));
- if (ioctl(s, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) {
+ if (ioctl(sockfd, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl(SIOCSIFNETMASK): %m");
ret = 0;
}
*/
int
cifaddr(u, o, h)
+ int u;
+ u_int32_t o, h;
{
struct rtentry rt;
SET_SA_FAMILY(rt.rt_gateway, AF_INET);
((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = o;
rt.rt_flags = RTF_HOST;
- if (ioctl(s, SIOCDELRT, (caddr_t) &rt) < 0) {
+ if (ioctl(sockfd, SIOCDELRT, (caddr_t) &rt) < 0) {
syslog(LOG_ERR, "ioctl(SIOCDELRT): %m");
return 0;
}
SET_SA_FAMILY(rt.rt_gateway, AF_INET);
((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g;
rt.rt_flags = RTF_GATEWAY;
- if (ioctl(s, SIOCADDRT, &rt) < 0) {
+ if (ioctl(sockfd, SIOCADDRT, &rt) < 0) {
syslog(LOG_ERR, "default route ioctl(SIOCADDRT): %m");
return 0;
}
SET_SA_FAMILY(rt.rt_gateway, AF_INET);
((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g;
rt.rt_flags = RTF_GATEWAY;
- if (ioctl(s, SIOCDELRT, &rt) < 0)
+ if (ioctl(sockfd, SIOCDELRT, &rt) < 0)
syslog(LOG_WARNING, "default route ioctl(SIOCDELRT): %m");
}
int
sifproxyarp(unit, hisaddr)
int unit;
- u_long hisaddr;
+ u_int32_t hisaddr;
{
struct arpreq arpreq;
SET_SA_FAMILY(arpreq.arp_pa, AF_INET);
((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr;
arpreq.arp_flags = ATF_PERM | ATF_PUBL;
- if (ioctl(s, SIOCSARP, (caddr_t)&arpreq) < 0) {
+ if (ioctl(sockfd, SIOCSARP, (caddr_t)&arpreq) < 0) {
syslog(LOG_ERR, "ioctl(SIOCSARP): %m");
return 0;
}
int
cifproxyarp(unit, hisaddr)
int unit;
- u_long hisaddr;
+ u_int32_t hisaddr;
{
struct arpreq arpreq;
BZERO(&arpreq, sizeof(arpreq));
SET_SA_FAMILY(arpreq.arp_pa, AF_INET);
((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr;
- if (ioctl(s, SIOCDARP, (caddr_t)&arpreq) < 0) {
+ if (ioctl(sockfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
syslog(LOG_WARNING, "ioctl(SIOCDARP): %m");
return 0;
}
int
get_ether_addr(ipaddr, hwaddr)
- u_long ipaddr;
+ u_int32_t ipaddr;
struct sockaddr *hwaddr;
{
- struct ifreq *ifr, *ifend, *ifp;
- u_long ina, mask;
- struct sockaddr_dl *dla;
+ struct ifreq *ifr, *ifend;
+ u_int32_t ina, mask;
struct ifreq ifreq;
struct ifconf ifc;
struct ifreq ifs[MAX_IFS];
+ struct ifdevea ifdevea;
ifc.ifc_len = sizeof(ifs);
ifc.ifc_req = ifs;
- if (ioctl(s, SIOCGIFCONF, &ifc) < 0) {
- syslog(LOG_ERR, "ioctl(SIOCGIFCONF): %m");
- return 0;
+ if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) {
+ syslog(LOG_ERR, "ioctl(SIOCGIFCONF): %m");
+ return 0;
}
/*
* address on the same subnet as `ipaddr'.
*/
ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
- for (ifr = ifc.ifc_req; ifr < ifend; ) {
+ for (ifr = ifc.ifc_req; ifr < ifend; ifr = (struct ifreq *)
+ ((char *)&ifr->ifr_addr + sizeof(struct sockaddr))) {
if (ifr->ifr_addr.sa_family == AF_INET) {
ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr;
strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
* Check that the interface is up, and not point-to-point
* or loopback.
*/
- if (ioctl(s, SIOCGIFFLAGS, &ifreq) < 0)
+ if (ioctl(sockfd, SIOCGIFFLAGS, &ifreq) < 0)
continue;
if ((ifreq.ifr_flags &
(IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
/*
* Get its netmask and check that it's on the right subnet.
*/
- if (ioctl(s, SIOCGIFNETMASK, &ifreq) < 0)
+ if (ioctl(sockfd, SIOCGIFNETMASK, &ifreq) < 0)
continue;
- mask = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr;
+ mask = ((struct sockaddr_in *) &ifreq.ifr_addr)->sin_addr.s_addr;
if ((ipaddr & mask) != (ina & mask))
continue;
break;
}
- ifr = (struct ifreq *) ((char *)&ifr->ifr_addr + sizeof(struct sockaddr)
-);
}
if (ifr >= ifend)
- return 0;
- syslog(LOG_DEBUG, "found interface %s for proxy arp", ifr->ifr_name);
+ return 0;
+ syslog(LOG_INFO, "found interface %s for proxy arp", ifr->ifr_name);
/*
- * Now scan through again looking for a link-level address
- * for this interface.
+ * Grab the physical address for this interface.
*/
- ifp = ifr;
- for (ifr = ifc.ifc_req; ifr < ifend; ) {
- if (strcmp(ifp->ifr_name, ifr->ifr_name) == 0
- && ifr->ifr_addr.sa_family == AF_DLI) {
-/* && ifr->ifr_addr.sa_family == AF_LINK) { Per! Kolla !!! ROHACK */
- /*
- * Found the link-level address - copy it out
- */
- dla = (struct sockaddr_dl *)&ifr->ifr_addr;
- hwaddr->sa_family = AF_UNSPEC;
- BCOPY(dla, hwaddr->sa_data, sizeof(hwaddr->sa_data));
- return 1;
- }
- ifr = (struct ifreq *) ((char *)&ifr->ifr_addr + sizeof(struct sockaddr)
-);
+ strncpy(ifdevea.ifr_name, ifr->ifr_name, sizeof(ifdevea.ifr_name));
+ if (ioctl(sockfd, SIOCRPHYSADDR, &ifdevea) < 0) {
+ syslog(LOG_ERR, "Couldn't get h/w address for %s: %m", ifr->ifr_name);
+ return 0;
}
- return 0;
+ hwaddr->sa_family = AF_UNSPEC;
+ BCOPY(ifdevea.current_pa, hwaddr->sa_data, 6);
+ return 1;
}
-
/*
- * ppp_available - check whether the system has any ppp interfaces
- * (in fact we check whether we can do an ioctl on ppp0).
+ * Return user specified netmask, modified by any mask we might determine
+ * for address `addr' (in network byte order).
+ * Here we scan through the system's list of interfaces, looking for
+ * any non-point-to-point interfaces which might appear to be on the same
+ * network as `addr'. If we find any, we OR in their netmask to the
+ * user-specified netmask.
*/
-
-int
-ppp_available()
+u_int32_t
+GetMask(addr)
+ u_int32_t addr;
{
- int s, ok;
- struct ifreq ifr;
+ u_int32_t mask, nmask, ina;
+ struct ifreq *ifr, *ifend, ifreq;
+ struct ifconf ifc;
+ struct ifreq ifs[MAX_IFS];
- if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
- return 1; /* can't tell - maybe we're not root */
+ addr = ntohl(addr);
+ if (IN_CLASSA(addr)) /* determine network mask for address class */
+ nmask = IN_CLASSA_NET;
+ else if (IN_CLASSB(addr))
+ nmask = IN_CLASSB_NET;
+ else
+ nmask = IN_CLASSC_NET;
+ /* class D nets are disallowed by bad_ip_adrs */
+ mask = netmask | htonl(nmask);
- strncpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name));
- ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0;
- close(s);
+ /*
+ * Scan through the system's network interfaces.
+ */
+ ifc.ifc_len = sizeof(ifs);
+ ifc.ifc_req = ifs;
+ if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) {
+ syslog(LOG_WARNING, "ioctl(SIOCGIFCONF): %m");
+ return mask;
+ }
+ ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
+ for (ifr = ifc.ifc_req; ifr < ifend; ifr = (struct ifreq *)
+ ((char *)&ifr->ifr_addr + sizeof(struct sockaddr))) {
+ /*
+ * Check the interface's internet address.
+ */
+ if (ifr->ifr_addr.sa_family != AF_INET)
+ continue;
+ ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr;
+ if ((ntohl(ina) & nmask) != (addr & nmask))
+ continue;
+ /*
+ * Check that the interface is up, and not point-to-point or loopback.
+ */
+ strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
+ if (ioctl(sockfd, SIOCGIFFLAGS, &ifreq) < 0)
+ continue;
+ if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
+ != IFF_UP)
+ continue;
+ /*
+ * Get its netmask and OR it into our mask.
+ */
+ if (ioctl(sockfd, SIOCGIFNETMASK, &ifreq) < 0)
+ continue;
+ mask |= ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr.s_addr;
+ }
- return ok;
+ return mask;
}
(void) strcpy( dup, in );
return dup;
}
+
+/*
+ * This logwtmp() implementation is subject to the following copyright:
+ *
+ * Copyright (c) 1988 The Regents of the University of California.
+ * 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 the University of California, Berkeley. 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.
+ */
+
+#define WTMPFILE "/usr/adm/wtmp"
+
+int
+logwtmp(line, name, host)
+ char *line, *name, *host;
+{
+ int fd;
+ struct stat buf;
+ struct utmp ut;
+
+ if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0)
+ return;
+ if (!fstat(fd, &buf)) {
+ (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line));
+ (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name));
+ (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host));
+ (void)time(&ut.ut_time);
+ if (write(fd, (char *)&ut, sizeof(struct utmp)) != sizeof(struct utmp))
+ (void)ftruncate(fd, buf.st_size);
+ }
+ close(fd);
+}
+
+/*
+ * Routines for locking and unlocking the serial device, moved here
+ * from chat.c.
+ */
+
+#define LOCK_PREFIX "/usr/spool/uucp/LCK.."
+
+/*
+ * lock - create a lock file for the named device
+ */
+int
+lock(dev)
+ char *dev;
+{
+ int fd, pid, n;
+ char *p;
+
+ if ((p = strrchr(dev, '/')) != NULL)
+ dev = p + 1;
+ lock_file = malloc(strlen(LOCK_PREFIX) + strlen(dev) + 1);
+ if (lock_file == NULL)
+ novm("lock file name");
+ strcat(strcpy(lock_file, LOCK_PREFIX), dev);
+
+ while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
+ if (errno == EEXIST
+ && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
+ /* Read the lock file to find out who has the device locked */
+ n = read(fd, &pid, sizeof(pid));
+ if (n <= 0) {
+ syslog(LOG_ERR, "Can't read pid from lock file %s", lock_file);
+ close(fd);
+ } else {
+ if (kill(pid, 0) == -1 && errno == ESRCH) {
+ /* pid no longer exists - remove the lock file */
+ if (unlink(lock_file) == 0) {
+ close(fd);
+ syslog(LOG_NOTICE, "Removed stale lock on %s (pid %d)",
+ dev, pid);
+ continue;
+ } else
+ syslog(LOG_WARNING, "Couldn't remove stale lock on %s",
+ dev);
+ } else
+ syslog(LOG_NOTICE, "Device %s is locked by pid %d",
+ dev, pid);
+ }
+ close(fd);
+ } else
+ syslog(LOG_ERR, "Can't create lock file %s: %m", lock_file);
+ free(lock_file);
+ lock_file = NULL;
+ return -1;
+ }
+
+ pid = getpid();
+ write(fd, &pid, sizeof pid);
+
+ close(fd);
+ return 0;
+}
+
+/*
+ * unlock - remove our lockfile
+ */
+void
+unlock()
+{
+ if (lock_file) {
+ unlink(lock_file);
+ free(lock_file);
+ lock_file = NULL;
+ }
+}
projects / ppp.git / blobdiff