* OR MODIFICATIONS.
*/
-#ifndef lint
-static char rcsid[] = "$Id: sys-svr4.c,v 1.15 1997/03/04 03:43:54 paulus Exp $";
-#endif
+#define RCSID "$Id: sys-svr4.c,v 1.33 1999/08/13 06:46:20 paulus Exp $"
#include <limits.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
-#if defined(SNI) || defined(__USLC__)
-extern void *alloca(size_t);
-#else
-#include <alloca.h>
-#endif
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stropts.h>
#include <sys/socket.h>
#include <sys/sockio.h>
-#include <sys/syslog.h>
#include <sys/sysmacros.h>
#include <sys/systeminfo.h>
#include <sys/dlpi.h>
#include <net/ppp_defs.h>
#include <net/pppio.h>
#include <netinet/in.h>
+#ifdef SOL2
+#include <sys/tihdr.h>
+#include <sys/tiuser.h>
+#include <inet/common.h>
+#include <inet/mib2.h>
+#endif
#include "pppd.h"
+static const char rcsid[] = RCSID;
+
static int pppfd;
static int fdmuxid = -1;
static int ipfd;
static struct termios inittermios;
#ifndef CRTSCTS
static struct termiox inittermiox;
+static int termiox_ok;
#endif
static struct winsize wsinfo; /* Initial window size info */
static pid_t tty_sid; /* original session ID for terminal */
extern u_char inpacket_buf[]; /* borrowed from main.c */
+#define MAX_POLLFDS 32
+static struct pollfd pollfds[MAX_POLLFDS];
+static int n_pollfds;
+
static int link_mtu, link_mru;
#define NMODULES 32
static int tty_nmodules;
static char tty_modules[NMODULES][FMNAMESZ+1];
+static int tty_npushed;
static int if_is_up; /* Interface has been marked up */
+static u_int32_t remote_addr; /* IP address of peer */
static u_int32_t default_route_gateway; /* Gateway for default route added */
static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
static int translate_speed __P((int));
static int baud_rate_of __P((int));
static int get_ether_addr __P((u_int32_t, struct sockaddr *));
-static int get_hw_addr __P((char *, struct sockaddr *));
+static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
static int dlpi_attach __P((int, int));
static int dlpi_info_req __P((int));
static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
#endif
ipfd = open("/dev/ip", O_RDWR, 0);
- if (ipfd < 0) {
- syslog(LOG_ERR, "Couldn't open IP device: %m");
- die(1);
- }
+ if (ipfd < 0)
+ fatal("Couldn't open IP device: %m");
- if (default_device)
+ if (default_device && !notty)
tty_sid = getsid((pid_t)0);
pppfd = open("/dev/ppp", O_RDWR | O_NONBLOCK, 0);
- if (pppfd < 0) {
- syslog(LOG_ERR, "Can't open /dev/ppp: %m");
- die(1);
- }
+ if (pppfd < 0)
+ fatal("Can't open /dev/ppp: %m");
if (kdebugflag & 1) {
x = PPPDBG_LOG + PPPDBG_DRIVER;
strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
}
/* Assign a new PPA and get its unit number. */
- if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0) {
- syslog(LOG_ERR, "Can't create new PPP interface: %m");
- die(1);
- }
+ if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
+ fatal("Can't create new PPP interface: %m");
/*
* Open the ppp device again and link it under the ip multiplexor.
* I don't know any way to be certain they will be the same. :-(
*/
ifd = open("/dev/ppp", O_RDWR, 0);
- if (ifd < 0) {
- syslog(LOG_ERR, "Can't open /dev/ppp (2): %m");
- die(1);
- }
+ if (ifd < 0)
+ fatal("Can't open /dev/ppp (2): %m");
if (kdebugflag & 1) {
x = PPPDBG_LOG + PPPDBG_DRIVER;
strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
}
#ifdef sun
if (ioctl(ifd, I_PUSH, "ip") < 0) {
- syslog(LOG_ERR, "Can't push IP module: %m");
close(ifd);
- die(1);
+ fatal("Can't push IP module: %m");
}
#else
if (dlpi_attach(ifd, ifunit) < 0 ||
dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
- syslog(LOG_ERR, "Can't attach to ppp%d: %m", ifunit);
close(ifd);
- die(1);
+ fatal("Can't attach to ppp%d: %m", ifunit);
}
#endif
ipmuxid = ioctl(ipfd, I_LINK, ifd);
close(ifd);
- if (ipmuxid < 0) {
- syslog(LOG_ERR, "Can't link PPP device to IP: %m");
- die(1);
- }
+ if (ipmuxid < 0)
+ fatal("Can't link PPP device to IP: %m");
#ifndef sun
/* Set the interface name for the link. */
- (void) sprintf (ifr.ifr_name, "ppp%d", ifunit);
+ slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "ppp%d", ifunit);
ifr.ifr_metric = ipmuxid;
- if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0) {
- syslog(LOG_ERR, "Can't set interface name %s: %m", ifr.ifr_name);
- die(1);
- }
+ if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
+ fatal("Can't set interface name %s: %m", ifr.ifr_name);
#endif
+
+ n_pollfds = 0;
}
/*
/*
* sys_check_options - check the options that the user specified
*/
-void
+int
sys_check_options()
{
+ return 1;
}
-
+#if 0
/*
* daemon - Detach us from controlling terminal session.
*/
}
return 0;
}
+#endif
/*
* ppp_available - check whether the system has any ppp interfaces
/*
* establish_ppp - Turn the serial port into a ppp interface.
*/
-void
+int
establish_ppp(fd)
int fd;
{
/* Pop any existing modules off the tty stream. */
for (i = 0;; ++i)
if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
+ || strcmp(tty_modules[i], "ptem") == 0
|| ioctl(fd, I_POP, 0) < 0)
break;
tty_nmodules = i;
/* Push the async hdlc module and the compressor module. */
- if (ioctl(fd, I_PUSH, "ppp_ahdl") < 0) {
- syslog(LOG_ERR, "Couldn't push PPP Async HDLC module: %m");
- die(1);
+ tty_npushed = 0;
+
+ if(!sync_serial) {
+ if (ioctl(fd, I_PUSH, "ppp_ahdl") < 0) {
+ error("Couldn't push PPP Async HDLC module: %m");
+ return -1;
+ }
+ ++tty_npushed;
}
if (kdebugflag & 4) {
i = PPPDBG_LOG + PPPDBG_AHDLC;
strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
}
- if (ioctl(fd, I_PUSH, "ppp_comp") < 0) {
- syslog(LOG_ERR, "Couldn't push PPP compression module: %m");
-/* die(1); */
- }
+ if (ioctl(fd, I_PUSH, "ppp_comp") < 0)
+ error("Couldn't push PPP compression module: %m");
+ else
+ ++tty_npushed;
if (kdebugflag & 2) {
i = PPPDBG_LOG + PPPDBG_COMP;
strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
/* Link the serial port under the PPP multiplexor. */
if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
- syslog(LOG_ERR, "Can't link tty to PPP mux: %m");
- die(1);
+ error("Can't link tty to PPP mux: %m");
+ return -1;
}
+
+ return pppfd;
}
/*
if (fdmuxid >= 0) {
if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
if (!hungup)
- syslog(LOG_ERR, "Can't unlink tty from PPP mux: %m");
+ error("Can't unlink tty from PPP mux: %m");
}
fdmuxid = -1;
if (!hungup) {
- while (ioctl(fd, I_POP, 0) >= 0)
- ;
+ while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
+ --tty_npushed;
for (i = tty_nmodules - 1; i >= 0; --i)
if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
- syslog(LOG_ERR, "Couldn't restore tty module %s: %m",
+ error("Couldn't restore tty module %s: %m",
tty_modules[i]);
}
if (hungup && default_device && tty_sid > 0) {
break;
}
if (s != NULL) {
- syslog(LOG_WARNING, "Serial link is not 8-bit clean:");
- syslog(LOG_WARNING, "All received characters had %s", s);
+ warn("Serial link is not 8-bit clean:");
+ warn("All received characters had %s", s);
}
}
#ifdef B57600
{ 57600, B57600 },
#endif
+#ifdef B76800
+ { 76800, B76800 },
+#endif
#ifdef B115200
{ 115200, B115200 },
#endif
for (speedp = speeds; speedp->speed_int; speedp++)
if (bps == speedp->speed_int)
return speedp->speed_val;
- syslog(LOG_WARNING, "speed %d not supported", bps);
+ warn("speed %d not supported", bps);
return 0;
}
struct termiox tiox;
#endif
- if (tcgetattr(fd, &tios) < 0) {
- syslog(LOG_ERR, "tcgetattr: %m");
- die(1);
- }
+ if (!sync_serial && tcgetattr(fd, &tios) < 0)
+ fatal("tcgetattr: %m");
#ifndef CRTSCTS
+ termiox_ok = 1;
if (ioctl (fd, TCGETX, &tiox) < 0) {
- syslog (LOG_ERR, "TCGETX: %m");
- die (1);
+ termiox_ok = 0;
+ if (errno != ENOTTY)
+ error("TCGETX: %m");
}
#endif
else if (crtscts < 0)
tios.c_cflag &= ~CRTSCTS;
#else
- if (crtscts > 0) {
+ if (crtscts != 0 && !termiox_ok) {
+ error("Can't set RTS/CTS flow control");
+ } else if (crtscts > 0) {
tiox.x_hflag |= RTSXOFF|CTSXON;
- }
- else if (crtscts < 0) {
+ } else if (crtscts < 0) {
tiox.x_hflag &= ~(RTSXOFF|CTSXON);
}
#endif
* We can't proceed if the serial port speed is 0,
* 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 (speed == B0)
+ fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
}
- if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) {
- syslog(LOG_ERR, "tcsetattr: %m");
- die(1);
- }
+ if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
+ fatal("tcsetattr: %m");
#ifndef CRTSCTS
- if (ioctl (fd, TCSETXF, &tiox) < 0){
- syslog (LOG_ERR, "TCSETXF: %m");
- die (1);
+ if (termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
+ error("TCSETXF: %m");
}
#endif
}
if (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
if (!hungup && errno != ENXIO)
- syslog(LOG_WARNING, "tcsetattr: %m");
+ warn("tcsetattr: %m");
#ifndef CRTSCTS
if (ioctl (fd, TCSETXF, &inittermiox) < 0){
if (!hungup && errno != ENXIO)
- syslog (LOG_ERR, "TCSETXF: %m");
+ error("TCSETXF: %m");
}
#endif
ioctl(fd, TIOCSWINSZ, &wsinfo);
* in demand mode. Under Solaris 2, we use our existing fd
* to the ppp driver.
*/
-void
+int
open_ppp_loopback()
{
+ return pppfd;
}
/*
struct pollfd pfd;
if (debug)
- log_packet(p, len, "sent ");
+ dbglog("sent %P", p, len);
data.len = len;
data.buf = (caddr_t) p;
while (putmsg(pppfd, NULL, &data, 0) < 0) {
if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
if (errno != ENXIO)
- syslog(LOG_ERR, "Couldn't send packet: %m");
+ error("Couldn't send packet: %m");
break;
}
pfd.fd = pppfd;
/*
- * wait_input - wait until there is data available on fd,
+ * wait_input - wait until there is data available,
* for the length of time specified by *timo (indefinite
* if timo is NULL).
*/
struct timeval *timo;
{
int t;
- struct pollfd pfd;
t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
- pfd.fd = pppfd;
- pfd.events = POLLIN | POLLPRI | POLLHUP;
- if (poll(&pfd, 1, t) < 0 && errno != EINTR) {
- syslog(LOG_ERR, "poll: %m");
- die(1);
+ if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
+ fatal("poll: %m");
+}
+
+/*
+ * add_fd - add an fd to the set that wait_input waits for.
+ */
+void add_fd(fd)
+ int fd;
+{
+ int n;
+
+ for (n = 0; n < n_pollfds; ++n)
+ if (pollfds[n].fd == fd)
+ return;
+ if (n_pollfds < MAX_POLLFDS) {
+ pollfds[n_pollfds].fd = fd;
+ pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
+ ++n_pollfds;
+ } else
+ error("Too many inputs!");
+}
+
+/*
+ * remove_fd - remove an fd from the set that wait_input waits for.
+ */
+void remove_fd(fd)
+ int fd;
+{
+ int n;
+
+ for (n = 0; n < n_pollfds; ++n) {
+ if (pollfds[n].fd == fd) {
+ while (++n < n_pollfds)
+ pollfds[n-1] = pollfds[n];
+ --n_pollfds;
+ break;
+ }
}
}
+#if 0
/*
* wait_loop_output - wait until there is data available on the
* loopback, for the length of time specified by *timo (indefinite
int n;
n = select(0, NULL, NULL, NULL, timo);
- if (n < 0 && errno != EINTR) {
- syslog(LOG_ERR, "select: %m");
- die(1);
- }
+ if (n < 0 && errno != EINTR)
+ fatal("select: %m");
}
+#endif
/*
flags = 0;
len = getmsg(pppfd, &ctrl, &data, &flags);
if (len < 0) {
- if (errno = EAGAIN || errno == EINTR)
+ if (errno == EAGAIN || errno == EINTR)
return -1;
- syslog(LOG_ERR, "Error reading packet: %m");
- die(1);
+ fatal("Error reading packet: %m");
}
if (ctrl.len <= 0)
* as a DLPI primitive??
*/
if (debug)
- syslog(LOG_DEBUG, "got dlpi prim 0x%x, len=%d",
+ dbglog("got dlpi prim 0x%x, len=%d",
((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
}
int pcomp, accomp;
{
int cf[2];
+ struct ifreq ifr;
link_mtu = mtu;
if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
if (hungup && errno == ENXIO)
return;
- syslog(LOG_ERR, "Couldn't set MTU: %m");
+ error("Couldn't set MTU: %m");
}
if (fdmuxid >= 0) {
/* can't set these if we don't have a stream attached below /dev/ppp */
if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
- syslog(LOG_ERR, "Couldn't set transmit ACCM: %m");
+ error("Couldn't set transmit ACCM: %m");
}
cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
cf[1] = COMP_PROT | COMP_AC;
if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
- syslog(LOG_ERR, "Couldn't set prot/AC compression: %m");
+ error("Couldn't set prot/AC compression: %m");
}
}
+
+ /* set the MTU for IP as well */
+ memset(&ifr, 0, sizeof(ifr));
+ strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ ifr.ifr_metric = link_mtu;
+ if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
+ error("Couldn't set IP MTU: %m");
+ }
}
/*
if (fdmuxid >= 0
&& strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
if (!hungup || errno != ENXIO)
- syslog(LOG_WARNING, "Couldn't set extended ACCM: %m");
+ warn("Couldn't set extended ACCM: %m");
}
}
if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
if (hungup && errno == ENXIO)
return;
- syslog(LOG_ERR, "Couldn't set MRU: %m");
+ error("Couldn't set MRU: %m");
}
if (fdmuxid >= 0) {
/* can't set these if we don't have a stream attached below /dev/ppp */
if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
- syslog(LOG_ERR, "Couldn't set receive ACCM: %m");
+ error("Couldn't set receive ACCM: %m");
}
cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
cf[1] = DECOMP_PROT | DECOMP_AC;
if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
- syslog(LOG_ERR, "Couldn't set prot/AC decompression: %m");
+ error("Couldn't set prot/AC decompression: %m");
}
}
}
cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
if (!hungup || errno != ENXIO)
- syslog(LOG_ERR, "Couldn't set kernel CCP state: %m");
+ error("Couldn't set kernel CCP state: %m");
}
}
return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
}
+/*
+ * get_ppp_stats - return statistics for the link.
+ */
+int
+get_ppp_stats(u, stats)
+ int u;
+ struct pppd_stats *stats;
+{
+ struct ppp_stats s;
+
+ if (strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
+ error("Couldn't get link statistics: %m");
+ return 0;
+ }
+ stats->bytes_in = s.p.ppp_ibytes;
+ stats->bytes_out = s.p.ppp_obytes;
+ return 1;
+}
+
#if 0
/*
* set_filters - transfer the pass and active filters to the kernel.
if (pass->bf_len > 0) {
if (strioctl(pppfd, PPPIO_PASSFILT, pass,
sizeof(struct bpf_program), 0) < 0) {
- syslog(LOG_ERR, "Couldn't set pass-filter in kernel: %m");
+ error("Couldn't set pass-filter in kernel: %m");
ret = 0;
}
}
if (active->bf_len > 0) {
if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
sizeof(struct bpf_program), 0) < 0) {
- syslog(LOG_ERR, "Couldn't set active-filter in kernel: %m");
+ error("Couldn't set active-filter in kernel: %m");
ret = 0;
}
}
cf[0] = cf[1] = 0;
if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
if (errno != ENXIO && errno != EINVAL)
- syslog(LOG_ERR, "Couldn't get compression flags: %m");
+ error("Couldn't get compression flags: %m");
return 0;
}
return cf[0] & CCP_FATALERROR;
maxcid[0] = xcidcomp;
maxcid[1] = 15; /* XXX should be rmaxcid */
if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
- syslog(LOG_ERR, "Couldn't initialize VJ compression: %m");
+ error("Couldn't initialize VJ compression: %m");
}
}
cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
if (vjcomp)
- syslog(LOG_ERR, "Couldn't enable VJ compression: %m");
+ error("Couldn't enable VJ compression: %m");
}
return 1;
{
struct ifreq ifr;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't mark interface up (get): %m");
+ error("Couldn't mark interface up (get): %m");
return 0;
}
ifr.ifr_flags |= IFF_UP;
if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't mark interface up (set): %m");
+ error("Couldn't mark interface up (set): %m");
return 0;
}
if_is_up = 1;
if (ipmuxid < 0)
return 1;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't mark interface down (get): %m");
+ error("Couldn't mark interface down (get): %m");
return 0;
}
ifr.ifr_flags &= ~IFF_UP;
if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't mark interface down (set): %m");
+ error("Couldn't mark interface down (set): %m");
return 0;
}
if_is_up = 0;
npi[0] = proto;
npi[1] = (int) mode;
if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
- syslog(LOG_ERR, "ioctl(set NP %d mode to %d): %m", proto, mode);
+ error("ioctl(set NP %d mode to %d): %m", proto, mode);
return 0;
}
return 1;
u_int32_t o, h, m;
{
struct ifreq ifr;
+ int ret = 1;
memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
ifr.ifr_addr.sa_family = AF_INET;
INET_ADDR(ifr.ifr_addr) = m;
if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't set IP netmask: %m");
+ error("Couldn't set IP netmask: %m");
+ ret = 0;
}
ifr.ifr_addr.sa_family = AF_INET;
INET_ADDR(ifr.ifr_addr) = o;
if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't set local IP address: %m");
+ error("Couldn't set local IP address: %m");
+ ret = 0;
+ }
+
+ /*
+ * On some systems, we have to explicitly set the point-to-point
+ * flag bit before we can set a destination address.
+ */
+ if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
+ && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
+ ifr.ifr_flags |= IFF_POINTOPOINT;
+ if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
+ error("Couldn't mark interface pt-to-pt: %m");
+ ret = 0;
+ }
}
ifr.ifr_dstaddr.sa_family = AF_INET;
INET_ADDR(ifr.ifr_dstaddr) = h;
if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't set remote IP address: %m");
+ error("Couldn't set remote IP address: %m");
+ ret = 0;
}
+#if 0 /* now done in ppp_send_config */
ifr.ifr_metric = link_mtu;
if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
- syslog(LOG_ERR, "Couldn't set IP MTU: %m");
+ error("Couldn't set IP MTU: %m");
}
+#endif
- return 1;
+ remote_addr = h;
+ return ret;
}
/*
#if defined(__USLC__) /* was: #if 0 */
cifroute(unit, ouraddr, hisaddr);
if (ipmuxid >= 0) {
- syslog(LOG_NOTICE, "Removing ppp interface unit");
+ notice("Removing ppp interface unit");
if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
- syslog(LOG_ERR, "Can't remove ppp interface unit: %m");
+ error("Can't remove ppp interface unit: %m");
return 0;
}
ipmuxid = -1;
}
#endif
+ remote_addr = 0;
return 1;
}
rt.rt_flags = RTF_GATEWAY;
if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
- syslog(LOG_ERR, "Can't add default route: %m");
+ error("Can't add default route: %m");
return 0;
}
rt.rt_flags = RTF_GATEWAY;
if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
- syslog(LOG_ERR, "Can't delete default route: %m");
+ error("Can't delete default route: %m");
return 0;
}
INET_ADDR(arpreq.arp_pa) = hisaddr;
arpreq.arp_flags = ATF_PERM | ATF_PUBL;
if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
- syslog(LOG_ERR, "Couldn't set proxy ARP entry: %m");
+ error("Couldn't set proxy ARP entry: %m");
return 0;
}
arpreq.arp_pa.sa_family = AF_INET;
INET_ADDR(arpreq.arp_pa) = hisaddr;
if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
- syslog(LOG_ERR, "Couldn't delete proxy ARP entry: %m");
+ error("Couldn't delete proxy ARP entry: %m");
return 0;
}
#endif
nif = MAX_IFS;
ifc.ifc_len = nif * sizeof(struct ifreq);
- ifc.ifc_buf = (caddr_t) alloca(ifc.ifc_len);
- if (ifc.ifc_req == 0)
+ ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
+ if (ifc.ifc_buf == 0)
return 0;
if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
- syslog(LOG_WARNING, "Couldn't get system interface list: %m");
+ warn("Couldn't get system interface list: %m");
+ free(ifc.ifc_buf);
return 0;
}
ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
/*
* Check that the interface is up, and not point-to-point or loopback.
*/
- strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
+ strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
continue;
if ((ifreq.ifr_flags &
}
if (ifr >= ifend) {
- syslog(LOG_WARNING, "No suitable interface found for proxy ARP");
+ warn("No suitable interface found for proxy ARP");
+ free(ifc.ifc_buf);
return 0;
}
- syslog(LOG_INFO, "found interface %s for proxy ARP", ifr->ifr_name);
- if (!get_hw_addr(ifr->ifr_name, hwaddr)) {
- syslog(LOG_ERR, "Couldn't get hardware address for %s", ifr->ifr_name);
+ info("found interface %s for proxy ARP", ifr->ifr_name);
+ if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
+ error("Couldn't get hardware address for %s", ifr->ifr_name);
+ free(ifc.ifc_buf);
return 0;
}
+ free(ifc.ifc_buf);
return 1;
}
* get_hw_addr - obtain the hardware address for a named interface.
*/
static int
-get_hw_addr(name, hwaddr)
+get_hw_addr(name, ina, hwaddr)
char *name;
+ u_int32_t ina;
struct sockaddr *hwaddr;
{
+#if 1
+ /* New way - get the address by doing an arp request. */
+ int s;
+ struct arpreq req;
+
+ s = socket(AF_INET, SOCK_DGRAM, 0);
+ if (s < 0)
+ return 0;
+ memset(&req, 0, sizeof(req));
+ req.arp_pa.sa_family = AF_INET;
+ INET_ADDR(req.arp_pa) = ina;
+ if (ioctl(s, SIOCGARP, &req) < 0) {
+ error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
+ return 0;
+ }
+ *hwaddr = req.arp_ha;
+ hwaddr->sa_family = AF_UNSPEC;
+
+#else /* 0 */
char *p, *q;
int unit, iffd, adrlen;
unsigned char *adrp;
* We have to open the device and ask it for its hardware address.
* First split apart the device name and unit.
*/
- strcpy(ifdev, "/dev/");
- q = ifdev + 5; /* strlen("/dev/") */
- while (*name != 0 && !isdigit(*name))
- *q++ = *name++;
- *q = 0;
- unit = atoi(name);
+ slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
+ for (q = ifdev + strlen(ifdev); --q >= ifdev; )
+ if (!isdigit(*q))
+ break;
+ unit = atoi(q+1);
+ q[1] = 0;
/*
* Open the device and do a DLPI attach and phys_addr_req.
*/
iffd = open(ifdev, O_RDWR);
if (iffd < 0) {
- syslog(LOG_ERR, "Can't open %s: %m", ifdev);
+ error("Can't open %s: %m", ifdev);
return 0;
}
if (dlpi_attach(iffd, unit) < 0
#endif
hwaddr->sa_family = AF_UNSPEC;
memcpy(hwaddr->sa_data, adrp, adrlen);
+#endif /* 0 */
return 1;
}
if (buf.len < sizeof(ulong)) {
if (debug)
- syslog(LOG_DEBUG, "dlpi response short (len=%d)\n", buf.len);
+ dbglog("dlpi response short (len=%d)\n", buf.len);
return -1;
}
if (debug) {
if (reply->dl_primitive == DL_ERROR_ACK) {
- syslog(LOG_DEBUG, "dlpi error %d (unix errno %d) for prim %x\n",
+ dbglog("dlpi error %d (unix errno %d) for prim %x\n",
reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
reply->error_ack.dl_error_primitive);
} else {
- syslog(LOG_DEBUG, "dlpi unexpected response prim %x\n",
+ dbglog("dlpi unexpected response prim %x\n",
reply->dl_primitive);
}
}
#endif
nif = MAX_IFS;
ifc.ifc_len = nif * sizeof(struct ifreq);
- ifc.ifc_buf = (caddr_t) alloca(ifc.ifc_len);
- if (ifc.ifc_req == 0)
+ ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
+ if (ifc.ifc_buf == 0)
return mask;
if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
- syslog(LOG_WARNING, "Couldn't get system interface list: %m");
+ warn("Couldn't get system interface list: %m");
+ free(ifc.ifc_buf);
return mask;
}
ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
/*
* Check that the interface is up, and not point-to-point or loopback.
*/
- strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
+ strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
continue;
if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
mask |= INET_ADDR(ifreq.ifr_addr);
}
+ free(ifc.ifc_buf);
return mask;
}
}
/*
- * gethostid - return the serial number of this machine.
+ * get_host_seed - return the serial number of this machine.
*/
int
-gethostid()
+get_host_seed()
{
char buf[32];
if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
- syslog(LOG_ERR, "sysinfo: %m");
+ error("sysinfo: %m");
return 0;
}
return (int) strtoul(buf, NULL, 16);
if (ioctl(fd, I_STR, &str) == -1)
return -1;
if (str.ic_len != olen)
- syslog(LOG_DEBUG, "strioctl: expected %d bytes, got %d for cmd %x\n",
+ dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
olen, str.ic_len, cmd);
return 0;
}
+#if 0
/*
* lock - create a lock file for the named lock device
*/
char ascii_pid[12];
if (stat(dev, &sbuf) < 0) {
- syslog(LOG_ERR, "Can't get device number for %s: %m", dev);
+ error("Can't get device number for %s: %m", dev);
return -1;
}
if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
- syslog(LOG_ERR, "Can't lock %s: not a character device", dev);
+ error("Can't lock %s: not a character device", dev);
return -1;
}
- sprintf(lock_file, "%s%03d.%03d.%03d", LOCK_PREFIX, major(sbuf.st_dev),
- major(sbuf.st_rdev), minor(sbuf.st_rdev));
+ slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
+ LOCK_PREFIX, major(sbuf.st_dev),
+ major(sbuf.st_rdev), minor(sbuf.st_rdev));
while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
if (errno == EEXIST
/* Read the lock file to find out who has the device locked */
n = read(fd, ascii_pid, 11);
if (n <= 0) {
- syslog(LOG_ERR, "Can't read pid from lock file %s", lock_file);
+ error("Can't read pid from lock file %s", lock_file);
close(fd);
} else {
ascii_pid[n] = 0;
/* 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)",
+ notice("Removed stale lock on %s (pid %d)",
dev, pid);
continue;
} else
- syslog(LOG_WARNING, "Couldn't remove stale lock on %s",
+ warn("Couldn't remove stale lock on %s",
dev);
} else
- syslog(LOG_NOTICE, "Device %s is locked by pid %d",
+ 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);
+ error("Can't create lock file %s: %m", lock_file);
lock_file[0] = 0;
return -1;
}
- sprintf(ascii_pid, "%10d\n", getpid());
+ slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
write(fd, ascii_pid, 11);
close(fd);
lock_file[0] = 0;
}
}
-
+#endif
/*
* cifroute - delete a route through the addresses given.
rt.rt_flags = RTF_HOST;
if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
- syslog(LOG_ERR, "Can't delete route: %m");
+ error("Can't delete route: %m");
return 0;
}
return 1;
}
+
+/*
+ * have_route_to - determine if the system has a route to the specified
+ * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
+ * `addr' is in network byte order.
+ * For demand mode to work properly, we have to ignore routes
+ * through our own interface.
+ */
+#ifndef T_CURRENT /* needed for Solaris 2.5 */
+#define T_CURRENT MI_T_CURRENT
+#endif
+
+int
+have_route_to(addr)
+ u_int32_t addr;
+{
+#ifdef SOL2
+ int fd, r, flags, i;
+ struct {
+ struct T_optmgmt_req req;
+ struct opthdr hdr;
+ } req;
+ union {
+ struct T_optmgmt_ack ack;
+ unsigned char space[64];
+ } ack;
+ struct opthdr *rh;
+ struct strbuf cbuf, dbuf;
+ int nroutes;
+ mib2_ipRouteEntry_t routes[8];
+ mib2_ipRouteEntry_t *rp;
+
+ fd = open("/dev/ip", O_RDWR);
+ if (fd < 0) {
+ warn("have_route_to: couldn't open /dev/ip: %m");
+ return -1;
+ }
+
+ req.req.PRIM_type = T_OPTMGMT_REQ;
+ req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
+ req.req.OPT_length = sizeof(req.hdr);
+ req.req.MGMT_flags = T_CURRENT;
+
+ req.hdr.level = MIB2_IP;
+ req.hdr.name = 0;
+ req.hdr.len = 0;
+
+ cbuf.buf = (char *) &req;
+ cbuf.len = sizeof(req);
+
+ if (putmsg(fd, &cbuf, NULL, 0) == -1) {
+ warn("have_route_to: putmsg: %m");
+ close(fd);
+ return -1;
+ }
+
+ for (;;) {
+ cbuf.buf = (char *) &ack;
+ cbuf.maxlen = sizeof(ack);
+ dbuf.buf = (char *) routes;
+ dbuf.maxlen = sizeof(routes);
+ flags = 0;
+ r = getmsg(fd, &cbuf, &dbuf, &flags);
+ if (r == -1) {
+ warn("have_route_to: getmsg: %m");
+ close(fd);
+ return -1;
+ }
+
+ if (cbuf.len < sizeof(struct T_optmgmt_ack)
+ || ack.ack.PRIM_type != T_OPTMGMT_ACK
+ || ack.ack.MGMT_flags != T_SUCCESS
+ || ack.ack.OPT_length < sizeof(struct opthdr)) {
+ dbglog("have_route_to: bad message len=%d prim=%d",
+ cbuf.len, ack.ack.PRIM_type);
+ close(fd);
+ return -1;
+ }
+
+ rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
+ if (rh->level == 0 && rh->name == 0)
+ break;
+ if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
+ while (r == MOREDATA)
+ r = getmsg(fd, NULL, &dbuf, &flags);
+ continue;
+ }
+
+ for (;;) {
+ nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
+ for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
+ if (rp->ipRouteMask != ~0) {
+ dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
+ rp->ipRouteDest, rp->ipRouteNextHop,
+ rp->ipRouteMask);
+ if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
+ && rp->ipRouteNextHop != remote_addr)
+ return 1;
+ }
+ }
+ if (r == 0)
+ break;
+ r = getmsg(fd, NULL, &dbuf, &flags);
+ }
+ }
+ close(fd);
+ return 0;
+#else
+ return -1;
+#endif /* SOL2 */
+}
+
+/*
+ * get_pty - get a pty master/slave pair and chown the slave side to
+ * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
+ */
+int
+get_pty(master_fdp, slave_fdp, slave_name, uid)
+ int *master_fdp;
+ int *slave_fdp;
+ char *slave_name;
+ int uid;
+{
+ int mfd, sfd;
+ char *pty_name;
+ struct termios tios;
+
+ mfd = open("/dev/ptmx", O_RDWR);
+ if (mfd < 0) {
+ error("Couldn't open pty master: %m");
+ return 0;
+ }
+
+ pty_name = ptsname(mfd);
+ if (pty_name == NULL) {
+ error("Couldn't get name of pty slave");
+ close(mfd);
+ return 0;
+ }
+ if (chown(pty_name, uid, -1) < 0)
+ warn("Couldn't change owner of pty slave: %m");
+ if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
+ warn("Couldn't change permissions on pty slave: %m");
+ if (unlockpt(mfd) < 0)
+ warn("Couldn't unlock pty slave: %m");
+
+ sfd = open(pty_name, O_RDWR);
+ if (sfd < 0) {
+ error("Couldn't open pty slave %s: %m", pty_name);
+ close(mfd);
+ return 0;
+ }
+ if (ioctl(sfd, I_PUSH, "ptem") < 0)
+ warn("Couldn't push ptem module on pty slave: %m");
+
+ dbglog("Using %s", pty_name);
+ strlcpy(slave_name, pty_name, MAXPATHLEN);
+ *master_fdp = mfd;
+ *slave_fdp = sfd;
+
+ return 1;
+}
projects / ppp.git / blobdiff