X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fsys-NeXT.c;h=8df34e55b9f51be0ae96aeb7e69a36f63ecbf4bb;hp=c8538d48d97b2d93b88db5a91b90e5bd3d9c27af;hb=a3630de20e34796f434a728bfd9cf1a961380c82;hpb=7173a14a57e110a75b316d0ad6de58f2eea5057c diff --git a/pppd/sys-NeXT.c b/pppd/sys-NeXT.c index c8538d4..8df34e5 100644 --- a/pppd/sys-NeXT.c +++ b/pppd/sys-NeXT.c @@ -4,7 +4,6 @@ * * Copyright (c) 1989 Carnegie Mellon University. * Copyright (c) 1994 Philippe-Andre Prindeville. - * Copyright (c) 1995 The Australian National University. * All rights reserved. * * Redistribution and use in source and binary forms are permitted @@ -12,25 +11,22 @@ * 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, Philippe-Andre Prindeville and - * The Australian National University. The names of the developers - * may not be used to endorse or promote products derived from this - * software without specific prior written permission. + * 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. */ -#ifndef lint -static char rcsid[] = "$Id: sys-NeXT.c,v 1.6 1996/05/26 23:59:36 paulus Exp $"; -#endif +#define RCSID "$Id: sys-NeXT.c,v 1.20 1999/08/13 06:46:17 paulus Exp $" #include -#include #include #include #include #include +#include #include #include #include @@ -48,7 +44,10 @@ static char rcsid[] = "$Id: sys-NeXT.c,v 1.6 1996/05/26 23:59:36 paulus Exp $"; #include #include #include +#if !(NS_TARGET >= 40) +/* XXX get an error "duplicate member ip_v under 4.1 GAMMA */ #include +#endif /* NS_TARGET */ #include #include #include @@ -57,32 +56,31 @@ static char rcsid[] = "$Id: sys-NeXT.c,v 1.6 1996/05/26 23:59:36 paulus Exp $"; #include "pppd.h" -static int initdisc = -1; /* Initial TTY discipline for ppp_fd */ -static int initfdflags = -1; /* Initial file descriptor flags for ppp_fd */ -static int ppp_fd = -1; /* fd which is set to PPP discipline */ - -extern int errno; - -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; /* name of lock file created */ +static const char rcsid[] = RCSID; +static int initdisc = -1; /* Initial TTY discipline */ +static int initfdflags = -1; /* Initial file descriptor flags for fd */ +static int ppp_fd = -1; /* fd which is set to PPP discipline */ static int loop_slave = -1; static int loop_master; static char loop_name[20]; -static unsigned char inbuf[512]; /* buffer for chars read from loopback */ +static fd_set in_fds; /* set of fds that wait_input waits for */ +static int max_in_fd; /* highest fd set in in_fds */ + +extern int errno; + +static int restore_term; /* 1 => we've munged the terminal */ +static struct termios inittermios; /* Initial TTY termios */ static int sockfd; /* socket for doing interface ioctls */ +static int pppdev; /* +++ */ #if defined(i386) && defined(HAS_BROKEN_IOCTL) #define ioctl myioctl #endif static int if_is_up; /* the interface is currently up */ -static u_int32_t ifaddrs[2]; /* local and remote addresses */ static u_int32_t default_route_gateway; /* gateway addr for default route */ static u_int32_t proxy_arp_addr; /* remote addr for proxy arp */ @@ -100,11 +98,18 @@ static int ether_by_host __P((char *, struct ether_addr *)); void sys_init() { + openlog("pppd", LOG_PID | LOG_NDELAY, LOG_PPP); + setlogmask(LOG_UPTO(LOG_INFO)); + /* 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); - } + if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) + fatal("Couldn't create IP socket: %m"); + + if((pppdev = open("/dev/ppp0", O_RDWR, O_NONBLOCK)) == NULL) + fatal("Couldn't open /dev/ppp0: %m"); + + FD_ZERO(&in_fds); + max_in_fd = 0; } /* @@ -118,43 +123,22 @@ sys_cleanup() struct ifreq ifr; if (if_is_up) { - strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) >= 0 && ((ifr.ifr_flags & IFF_UP) != 0)) { ifr.ifr_flags &= ~IFF_UP; ioctl(sockfd, SIOCSIFFLAGS, &ifr); } } - if (ifaddrs[0]) - cifaddr(0, ifaddrs[0], ifaddrs[1]); + if (default_route_gateway) - cifdefaultroute(0, default_route_gateway); + cifdefaultroute(0, 0, default_route_gateway); if (proxy_arp_addr) cifproxyarp(0, proxy_arp_addr); -} - -/* - * sys_close - Clean up in a child process before execing. - */ -void -sys_close() -{ - close(sockfd); - if (loop_slave >= 0) { - close(loop_slave); - close(loop_master); - } -} -/* - * sys_check_options - check the options that the user specified - */ -void -sys_check_options() -{ + close(pppdev); } - /* * ppp_available - check whether the system has any ppp interfaces * (in fact we check whether we can do an ioctl on ppp0). @@ -164,132 +148,67 @@ ppp_available() { int s, ok; struct ifreq ifr; + extern char *no_ppp_msg; 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)); + strlcpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name)); ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0; close(s); + no_ppp_msg = "\ +This system lacks kernel support for PPP. To include PPP support\n\ +in the kernel, please follow the steps detailed in the README.NeXT\n\ +file in the ppp-2.2 distribution.\n"; + return ok; } /* * establish_ppp - Turn the serial port into a ppp interface. */ -void +int establish_ppp(fd) int fd; { int pppdisc = PPPDISC; int x; - if (demand) { - /* - * Demand mode - prime the old ppp device to relinquish the unit. - */ - if (ioctl(ppp_fd, PPPIOCXFERUNIT, 0) < 0) { - syslog(LOG_ERR, "ioctl(transfer ppp unit): %m"); - die(1); - } - } + if (ioctl(fd, TIOCGETD, &initdisc) < 0) + fatal("ioctl(TIOCGETD): %m"); + if (ioctl(fd, TIOCSETD, &pppdisc) < 0) + fatal("ioctl(establish TIOCSETD): %m"); /* - * Save the old line discipline of fd, and set it to PPP. + * Find out which interface we were given. */ - if (ioctl(fd, TIOCGETD, &initdisc) < 0) { - syslog(LOG_ERR, "ioctl(TIOCGETD): %m"); - die(1); - } - if (ioctl(fd, TIOCSETD, &pppdisc) < 0) { - syslog(LOG_ERR, "ioctl(establish TIOCSETD): %m"); - die(1); - } - - if (!demand) { - /* - * Find out which interface we were given. - */ - if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m"); - die(1); - } - } else { - /* - * Check that we got the same unit again. - */ - if (ioctl(fd, PPPIOCGUNIT, &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m"); - die(1); - } - if (x != ifunit) { - syslog(LOG_ERR, "transfer_ppp failed: wanted unit %d, got %d", - ifunit, x); - die(1); - } - x = TTYDISC; - ioctl(loop_slave, TIOCSETD, &x); - } - - ppp_fd = fd; + if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0) + fatal("ioctl(PPPIOCGUNIT): %m"); /* * Enable debug in the driver if requested. */ if (kdebugflag) { if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_WARNING, "ioctl(PPPIOCGFLAGS): %m"); + warn("ioctl(PPPIOCGFLAGS): %m"); } else { x |= (kdebugflag & 0xFF) * SC_DEBUG; if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) - syslog(LOG_WARNING, "ioctl(PPPIOCSFLAGS): %m"); + warn("ioctl(PPPIOCSFLAGS): %m"); } } /* - * Set device for non-blocking reads. + * Set device for non-blocking reads so PPPD can poll for + * input from the kernel. */ if ((initfdflags = fcntl(fd, F_GETFL)) == -1 || fcntl(fd, F_SETFL, initfdflags | O_NONBLOCK) == -1) { - syslog(LOG_WARNING, "Couldn't set device to non-blocking mode: %m"); + warn("Couldn't set device to non-blocking mode: %m"); } -} -/* - * restore_loop - reattach the ppp unit to the loopback. - */ -void -restore_loop() -{ - int x; - - /* - * Transfer the ppp interface back to the loopback. - */ - if (ioctl(ppp_fd, PPPIOCXFERUNIT, 0) < 0) { - syslog(LOG_ERR, "ioctl(transfer ppp unit): %m"); - die(1); - } - x = PPPDISC; - if (ioctl(loop_slave, TIOCSETD, &x) < 0) { - syslog(LOG_ERR, "ioctl(TIOCSETD): %m"); - die(1); - } - - /* - * Check that we got the same unit again. - */ - if (ioctl(loop_slave, PPPIOCGUNIT, &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m"); - die(1); - } - if (x != ifunit) { - syslog(LOG_ERR, "transfer_ppp failed: wanted unit %d, got %d", - ifunit, x); - die(1); - } - ppp_fd = loop_slave; + return fd; } @@ -303,16 +222,13 @@ disestablish_ppp(fd) { /* Reset non-blocking mode on fd. */ if (initfdflags != -1 && fcntl(fd, F_SETFL, initfdflags) < 0) - syslog(LOG_WARNING, "Couldn't restore device fd flags: %m"); + warn("Couldn't restore device fd flags: %m"); initfdflags = -1; /* Restore old line discipline. */ if (initdisc >= 0 && ioctl(fd, TIOCSETD, &initdisc) < 0) - syslog(LOG_ERR, "ioctl(disestablish TIOCSETD): %m"); + error("ioctl(TIOCSETD): %m"); initdisc = -1; - - if (fd == ppp_fd) - ppp_fd = -1; } /* @@ -324,7 +240,7 @@ clean_check() int x; char *s; - if (ioctl(ppp_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: @@ -341,8 +257,8 @@ clean_check() 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); } } } @@ -451,7 +367,7 @@ translate_speed(bps) 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; } @@ -485,21 +401,13 @@ set_up_tty(fd, local) int speed, x, modembits; struct termios tios; - if (tcgetattr(fd, &tios) < 0) { - syslog(LOG_ERR, "tcgetattr: %m"); - die(1); - } + if (tcgetattr(fd, &tios) < 0) + fatal("tcgetattr: %m"); - if (!restore_term) { + if (!restore_term) inittermios = tios; - ioctl(fd, TIOCGWINSZ, &wsinfo); - } tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL); - if (crtscts > 0 && !local) - tios.c_cflag |= CRTSCTS; - else if (crtscts < 0) - tios.c_cflag &= ~CRTSCTS; tios.c_cflag |= CS8 | CREAD | HUPCL; if (local || !modem) @@ -523,18 +431,23 @@ set_up_tty(fd, local) 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) + fatal("Baud rate for %s is 0; need explicit baud rate", + devnam); } if (modem) { modembits = TIOCM_RTS | TIOCM_CTS; if (ioctl(fd, (crtscts ? TIOCMBIS : TIOCMBIC), &modembits) < 0) - syslog(LOG_ERR, "ioctl: TIOCMBIS/BIC: %m"); + error("ioctl: TIOCMBIS/BIC: %m"); } - if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) { - syslog(LOG_ERR, "tcsetattr: %m"); - die(1); - } + if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) + fatal("tcsetattr: %m"); baud_rate = inspeed = baud_rate_of(speed); restore_term = 1; @@ -548,19 +461,9 @@ restore_tty(fd) int fd; { 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); + warn("tcsetattr: %m"); restore_term = 0; } } @@ -591,68 +494,6 @@ int fd, on; } -/* - * open_ppp_loopback - open the device we use for getting - * packets in demand mode, and connect it to a ppp interface. - * Here we use a pty. - */ -void -open_ppp_loopback() -{ - int flags; - struct termios tios; - int pppdisc = PPPDISC; - - if (openpty(&loop_master, &loop_slave, loop_name, NULL, NULL) < 0) { - syslog(LOG_ERR, "No free pty for loopback"); - die(1); - } - SYSDEBUG((LOG_DEBUG, "using %s for loopback", loop_name)); - - if (tcgetattr(loop_slave, &tios) == 0) { - tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB); - tios.c_cflag |= CS8 | CREAD; - tios.c_iflag = IGNPAR; - tios.c_oflag = 0; - tios.c_lflag = 0; - if (tcsetattr(loop_slave, TCSAFLUSH, &tios) < 0) - syslog(LOG_WARNING, "couldn't set attributes on loopback: %m"); - } - - if ((flags = fcntl(loop_master, F_GETFL)) != -1) - if (fcntl(loop_master, F_SETFL, flags | O_NONBLOCK) == -1) - syslog(LOG_WARNING, "couldn't set loopback to nonblock: %m"); - - ppp_fd = loop_slave; - if (ioctl(ppp_fd, TIOCSETD, &pppdisc) < 0) { - syslog(LOG_ERR, "ioctl(TIOCSETD): %m"); - die(1); - } - - /* - * Find out which interface we were given. - */ - if (ioctl(ppp_fd, PPPIOCGUNIT, &ifunit) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m"); - die(1); - } - - /* - * Enable debug in the driver if requested. - */ - if (kdebugflag) { - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &flags) < 0) { - syslog(LOG_WARNING, "ioctl (PPPIOCGFLAGS): %m"); - } else { - flags |= (kdebugflag & 0xFF) * SC_DEBUG; - if (ioctl(ppp_fd, PPPIOCSFLAGS, (caddr_t) &flags) < 0) - syslog(LOG_WARNING, "ioctl(PPPIOCSFLAGS): %m"); - } - } - -} - - /* * output - Output PPP packet. */ @@ -663,22 +504,21 @@ output(unit, p, len) int len; { if (debug) - log_packet(p, len, "sent "); + dbglog("sent %P", p, len); if (write(ttyfd, p, len) < 0) { if (errno == EWOULDBLOCK || errno == ENOBUFS || errno == ENXIO || errno == EIO) { - syslog(LOG_WARNING, "write: warning: %m"); + warn("write: warning: %m"); } else { - syslog(LOG_ERR, "write: %m"); - die(1); + fatal("write: %m"); } } } /* - * wait_input - wait until there is data available on ttyfd, + * wait_input - wait until there is data available, * for the length of time specified by *timo (indefinite * if timo is NULL). */ @@ -689,54 +529,33 @@ wait_input(timo) fd_set ready; int n; - FD_ZERO(&ready); - FD_SET(ttyfd, &ready); - n = select(ttyfd+1, &ready, NULL, &ready, timo); - if (n < 0 && errno != EINTR) { - syslog(LOG_ERR, "select: %m"); - die(1); - } + ready = in_fds; + n = select(max_in_fd + 1, &ready, NULL, &ready, timo); + if (n < 0 && errno != EINTR) + fatal("select: %m"); } /* - * wait_loop_output - wait until there is data available on the - * loopback, for the length of time specified by *timo (indefinite - * if timo is NULL). + * add_fd - add an fd to the set that wait_input waits for. */ -wait_loop_output(timo) - struct timeval *timo; +void add_fd(fd) + int fd; { - fd_set ready; - int n; - - FD_ZERO(&ready); - FD_SET(loop_master, &ready); - n = select(loop_master + 1, &ready, NULL, &ready, timo); - if (n < 0 && errno != EINTR) { - syslog(LOG_ERR, "select: %m"); - die(1); - } + FD_SET(fd, &in_fds); + if (fd > max_in_fd) + max_in_fd = fd; } - /* - * wait_time - wait for a given length of time or until a - * signal is received. + * remove_fd - remove an fd from the set that wait_input waits for. */ -wait_time(timo) - struct timeval *timo; +void remove_fd(fd) + int fd; { - int n; - - n = select(0, NULL, NULL, NULL, timo); - if (n < 0 && errno != EINTR) { - syslog(LOG_ERR, "select: %m"); - die(1); - } + FD_CLR(fd, &in_fds); } - /* * read_packet - get a PPP packet from the serial device. */ @@ -747,43 +566,16 @@ read_packet(buf) int len; if ((len = read(ttyfd, buf, PPP_MTU + PPP_HDRLEN)) < 0) { - if (errno == EWOULDBLOCK || errno == EINTR) + if (errno == EWOULDBLOCK || errno == EINTR) { + SYSDEBUG(("read: %m")); return -1; - syslog(LOG_ERR, "read: %m"); - die(1); + } + fatal("read: %m"); } return len; } -/* - * get_loop_output - read characters from the loopback, form them - * into frames, and detect when we want to bring the real link up. - * Return value is 1 if we need to bring up the link, 0 otherwise. - */ -int -get_loop_output() -{ - int rv = 0; - int n; - - while ((n = read(loop_master, inbuf, sizeof(inbuf))) >= 0) { - if (loop_chars(inbuf, n)) - rv = 1; - } - - if (n == 0) { - syslog(LOG_ERR, "eof on loopback"); - die(1); - } else if (errno != EWOULDBLOCK){ - syslog(LOG_ERR, "read from loopback: %m"); - die(1); - } - - return rv; -} - - /* * ppp_send_config - configure the transmit characteristics of * the ppp interface. @@ -797,28 +589,21 @@ ppp_send_config(unit, mtu, asyncmap, pcomp, accomp) u_int x; struct ifreq ifr; - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); + strlcpy(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(); - } + if (ioctl(sockfd, SIOCSIFMTU, (caddr_t) &ifr) < 0) + fatal("ioctl(SIOCSIFMTU): %m"); - if (ioctl(ppp_fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSASYNCMAP): %m"); - quit(); - } + if (ioctl(ttyfd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) + fatal("ioctl(PPPIOCSASYNCMAP): %m"); + + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) + fatal("ioctl(PPPIOCGFLAGS): %m"); - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m"); - quit(); - } x = pcomp? x | SC_COMP_PROT: x &~ SC_COMP_PROT; x = accomp? x | SC_COMP_AC: x &~ SC_COMP_AC; - if (ioctl(ppp_fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - quit(); - } + if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) + fatal("ioctl(PPPIOCSFLAGS): %m"); } @@ -830,8 +615,8 @@ ppp_set_xaccm(unit, accm) int unit; ext_accm accm; { - if (ioctl(ppp_fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) - syslog(LOG_WARNING, "ioctl(set extended ACCM): %m"); + if (ioctl(ttyfd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) + warn("ioctl(PPPIOCSXASYNCMAP): %m"); } @@ -847,30 +632,20 @@ ppp_recv_config(unit, mru, asyncmap, pcomp, accomp) { int x; - if (ioctl(ppp_fd, PPPIOCSMRU, (caddr_t) &mru) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSMRU): %m"); - quit(); - } - if (ioctl(ppp_fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSRASYNCMAP): %m"); - quit(); - } - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m"); - quit(); - } + if (ioctl(ttyfd, PPPIOCSMRU, (caddr_t) &mru) < 0) + fatal("ioctl(PPPIOCSMRU): %m"); + if (ioctl(ttyfd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) + fatal("ioctl(PPPIOCSRASYNCMAP): %m"); + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) + fatal("ioctl(PPPIOCGFLAGS): %m"); x = !accomp? x | SC_REJ_COMP_AC: x &~ SC_REJ_COMP_AC; - if (ioctl(ppp_fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - quit(); - } + if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) + fatal("ioctl(PPPIOCSFLAGS): %m"); } /* * ccp_test - ask kernel whether a given compression method - * is acceptable for use. Returns 1 if the method and parameters - * are OK, 0 if the method is known but the parameters are not OK - * (e.g. code size should be reduced), or -1 if the method is unknown. + * is acceptable for use. */ int ccp_test(unit, opt_ptr, opt_len, for_transmit) @@ -896,14 +671,14 @@ ccp_flags_set(unit, isopen, isup) { int x; - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m"); + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { + error("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(ppp_fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); + if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) + error("ioctl(PPPIOCSFLAGS): %m"); } /* @@ -917,50 +692,13 @@ ccp_fatal_error(unit) { int x; - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m"); + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { + error("ioctl(PPPIOCGFLAGS): %m"); return 0; } return x & SC_DC_FERROR; } -/* - * get_idle_time - return how long the link has been idle. - */ -int -get_idle_time(u, ip) - int u; - struct ppp_idle *ip; -{ - return ioctl(ppp_fd, PPPIOCGIDLE, ip) >= 0; -} - - -/* - * set_filters - transfer the pass and active filters to the kernel. - */ -int -set_filters(pass, active) - struct bpf_program *pass, *active; -{ - int ret = 1; - - if (pass->bf_len > 0) { - if (ioctl(ppp_fd, PPPIOCSPASS, pass) < 0) { - syslog(LOG_ERR, "Couldn't set pass-filter in kernel: %m"); - ret = 0; - } - } - if (active->bf_len > 0) { - if (ioctl(ppp_fd, PPPIOCSACTIVE, active) < 0) { - syslog(LOG_ERR, "Couldn't set active-filter in kernel: %m"); - ret = 0; - } - } - return ret; -} - - /* * sifvjcomp - config tcp header compression */ @@ -970,18 +708,18 @@ sifvjcomp(u, vjcomp, cidcomp, maxcid) { u_int x; - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m"); + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { + error("ioctl(PPIOCGFLAGS): %m"); return 0; } x = vjcomp ? x | SC_COMP_TCP: x &~ SC_COMP_TCP; x = cidcomp? x & ~SC_NO_TCP_CCID: x | SC_NO_TCP_CCID; - if (ioctl(ppp_fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); + if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { + error("ioctl(PPPIOCSFLAGS): %m"); return 0; } - if (ioctl(ppp_fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); + if (ioctl(ttyfd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) { + error("ioctl(PPPIOCSFLAGS): %m"); return 0; } return 1; @@ -990,42 +728,46 @@ sifvjcomp(u, vjcomp, cidcomp, maxcid) /* * 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)); + strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); + error("ioctl (SIOCGIFFLAGS): %m"); return 0; } ifr.ifr_flags |= IFF_UP; if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); + error("ioctl(SIOCSIFFLAGS): %m"); return 0; } if_is_up = 1; - return 1; -} - -/* - * sifnpmode - Set the mode for handling packets for a given NP. - */ -int -sifnpmode(u, proto, mode) - int u; - int proto; - enum NPmode mode; -{ - struct npioctl npi; - - npi.protocol = proto; - npi.mode = mode; - if (ioctl(ppp_fd, PPPIOCSNPMODE, &npi) < 0) { - syslog(LOG_ERR, "ioctl(set NP %d mode to %d): %m", proto, mode); - return 0; + npi.protocol = PPP_IP; + npi.mode = NPMODE_PASS; + if (ioctl(ttyfd, PPPIOCSNPMODE, &npi) < 0) { + if (errno != ENOTTY) { + error("ioctl(PPPIOCSNPMODE): %m"); + return 0; + } + /* for backwards compatibility */ + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { + error("ioctl (PPPIOCGFLAGS): %m"); + return 0; + } + x |= SC_ENABLE_IP; + if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { + error("ioctl(PPPIOCSFLAGS): %m"); + return 0; + } } return 1; } @@ -1038,23 +780,25 @@ sifdown(u) int u; { struct ifreq ifr; + u_int x; int rv; struct npioctl npi; rv = 1; npi.protocol = PPP_IP; npi.mode = NPMODE_ERROR; - ioctl(ppp_fd, PPPIOCSNPMODE, (caddr_t) &npi); - /* ignore errors, because ppp_fd might have been closed by now. */ + ioctl(ttyfd, PPPIOCSNPMODE, (caddr_t) &npi); + /* ignore errors, because ttyfd might have been closed by now. */ + - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); + strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); + error("ioctl (SIOCGIFFLAGS): %m"); rv = 0; } else { ifr.ifr_flags &= ~IFF_UP; if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); + error("ioctl(SIOCSIFFLAGS): %m"); rv = 0; } else if_is_up = 0; @@ -1082,28 +826,26 @@ sifaddr(u, o, h, m) struct ifreq ifr; ret = 1; - strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); SET_SA_FAMILY(ifr.ifr_addr, AF_INET); - 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(sockfd, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFNETMASK): %m"); - ret = 0; - } - } ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o; if (ioctl(sockfd, SIOCSIFADDR, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCAIFADDR): %m"); + error("ioctl(SIOCAIFADDR): %m"); ret = 0; } ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h; if (ioctl(sockfd, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFDSTADDR): %m"); + error("ioctl(SIOCSIFDSTADDR): %m"); ret = 0; } - ifaddrs[0] = o; - ifaddrs[1] = h; + if (m != 0) { + ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = m; + info("Setting interface mask to %s\n", ip_ntoa(m)); + if (ioctl(sockfd, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) { + error("ioctl(SIOCSIFNETMASK): %m"); + ret = 0; + } + } return ret; } @@ -1126,15 +868,13 @@ cifaddr(u, o, h) h = o = 0L; (void) sifaddr(u, o, h, 0L); #endif - ifaddrs[0] = 0; - BZERO(&rt, sizeof(rt)); SET_SA_FAMILY(rt.rt_dst, AF_INET); ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = h; 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(sockfd, SIOCDELRT, (caddr_t) &rt) < 0) { - syslog(LOG_ERR, "ioctl(SIOCDELRT): %m"); + error("ioctl(SIOCDELRT): %m"); return 0; } return 1; @@ -1144,9 +884,9 @@ cifaddr(u, o, h) * sifdefaultroute - assign a default route through the address given. */ int -sifdefaultroute(u, g) +sifdefaultroute(u, l, g) int u; - u_int32_t g; + u_int32_t l, g; { return dodefaultroute(g, 's'); } @@ -1155,9 +895,9 @@ sifdefaultroute(u, g) * cifdefaultroute - delete a default route through the address given. */ int -cifdefaultroute(u, g) +cifdefaultroute(u, l, g) int u; - u_int32_t g; + u_int32_t l, g; { return dodefaultroute(g, 'c'); } @@ -1172,14 +912,13 @@ dodefaultroute(g, cmd) { struct rtentry rt; - BZERO(&rt, sizeof(rt)); SET_SA_FAMILY(rt.rt_dst, AF_INET); ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = 0L; 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(sockfd, (cmd == 's') ? SIOCADDRT : SIOCDELRT, &rt) < 0) { - syslog(LOG_ERR, "%cifdefaultroute: ioctl(%s): %m", cmd, + error("%cifdefaultroute: ioctl(%s): %m", cmd, (cmd == 's') ? "SIOCADDRT" : "SIOCDELRT"); return 0; } @@ -1204,7 +943,7 @@ sifproxyarp(unit, hisaddr) * as our local address. */ if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) { - syslog(LOG_ERR, "Cannot determine ethernet address for proxy ARP"); + error("Cannot determine ethernet address for proxy ARP"); return 0; } @@ -1212,7 +951,7 @@ sifproxyarp(unit, hisaddr) ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr; arpreq.arp_flags = ATF_PERM | ATF_PUBL; if (ioctl(sockfd, SIOCSARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSARP): %m"); + error("ioctl(SIOCSARP): %m"); return 0; } @@ -1234,7 +973,7 @@ cifproxyarp(unit, hisaddr) SET_SA_FAMILY(arpreq.arp_pa, AF_INET); ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr; if (ioctl(sockfd, SIOCDARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_WARNING, "ioctl(SIOCDARP): %m"); + warn("ioctl(SIOCDARP): %m"); return 0; } proxy_arp_addr = 0; @@ -1263,7 +1002,7 @@ get_ether_addr(ipaddr, hwaddr) ifc.ifc_len = sizeof(ifs); ifc.ifc_req = ifs; if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) { - syslog(LOG_ERR, "ioctl(SIOCGIFCONF): %m"); + error("ioctl(SIOCGIFCONF): %m"); return 0; } @@ -1276,7 +1015,7 @@ get_ether_addr(ipaddr, hwaddr) ((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)); + strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name)); /* * Check that the interface is up, and not point-to-point * or loopback. @@ -1302,7 +1041,7 @@ get_ether_addr(ipaddr, hwaddr) if (ifr >= ifend) return 0; - syslog(LOG_INFO, "found interface %s for proxy arp", ifr->ifr_name); + info("found interface %s for proxy arp", ifr->ifr_name); /* * Get the hostname and look for an entry using the ethers database. @@ -1312,7 +1051,7 @@ get_ether_addr(ipaddr, hwaddr) return 0; if (ether_by_host(hostent->h_name, &dla)) { - syslog(LOG_INFO, "Add entry for %s in /etc/ethers", hostent->h_name); + info("Add entry for %s in /etc/ethers", hostent->h_name); return 0; /* it's not there */ } hwaddr->sa_family = AF_UNSPEC; @@ -1338,7 +1077,7 @@ ether_by_host(hostname, etherptr) * find the address in the * top domain of netinfo. */ - strcat(strcpy(path, "/machines/"), hostname); + slprintf(path, sizeof(path), "/machines/%s", hostname); if (ni_open((void *)0, "/", &conn) || ni_root(conn, &root) @@ -1349,7 +1088,7 @@ ether_by_host(hostname, etherptr) /* * Now we can convert the returned string into an ethernet address. */ - strcpy(path, val.ni_namelist_val[0]); + strlcpy(path, val.ni_namelist_val[0], sizeof(path)); ni_free(conn); if ((thisptr = (struct ether_addr*)ether_aton(path)) == NULL) return 1; @@ -1392,7 +1131,7 @@ GetMask(addr) ifc.ifc_len = sizeof(ifs); ifc.ifc_req = ifs; if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) { - syslog(LOG_WARNING, "ioctl(SIOCGIFCONF): %m"); + warn("ioctl(SIOCGIFCONF): %m"); return mask; } ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len); @@ -1409,7 +1148,7 @@ GetMask(addr) /* * 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(sockfd, SIOCGIFFLAGS, &ifreq) < 0) continue; if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK)) @@ -1426,8 +1165,18 @@ GetMask(addr) return mask; } +/* + * have_route_to - determine if the system has any route to + * a given IP address. + * For demand mode to work properly, we have to ignore routes + * through our own interface. + */ +int have_route_to(u_int32_t addr) +{ + return -1; +} - +#if 0 /* * daemon - Detach us from the terminal session. */ @@ -1451,7 +1200,7 @@ daemon(nochdir, noclose) } return 0; } - +#endif char * strdup(s) @@ -1484,9 +1233,9 @@ strdup(s) #define WTMPFILE "/usr/adm/wtmp" -int +void logwtmp(line, name, host) - char *line, *name, *host; + const char *line, *name, *host; { int fd; struct stat buf; @@ -1495,9 +1244,9 @@ logwtmp(line, name, host) 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)); + strncpy(ut.ut_line, line, sizeof(ut.ut_line)); + strncpy(ut.ut_name, name, sizeof(ut.ut_name)); + 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); @@ -1505,6 +1254,7 @@ logwtmp(line, name, host) close(fd); } +#if 0 /* * Routines for locking and unlocking the serial device, moved here * from chat.c. @@ -1512,6 +1262,8 @@ logwtmp(line, name, host) #define LOCK_PREFIX "/usr/spool/uucp/LCK/LCK.." +static char *lock_file; + /* * lock - create a lock file for the named device */ @@ -1521,13 +1273,15 @@ lock(dev) { int fd, pid, n; char *p; + size_t l; if ((p = strrchr(dev, '/')) != NULL) dev = p + 1; - lock_file = malloc(strlen(LOCK_PREFIX) + strlen(dev) + 1); + l = strlen(LOCK_PREFIX) + strlen(dev) + 1; + lock_file = malloc(l); if (lock_file == NULL) novm("lock file name"); - strcat(strcpy(lock_file, LOCK_PREFIX), dev); + slprintf(lock_file, l, "%s%s", LOCK_PREFIX, dev); while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) { if (errno == EEXIST @@ -1535,26 +1289,25 @@ lock(dev) /* 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); + error("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)", + notice("Removed stale lock on %s (pid %d)", dev, pid); continue; } else - syslog(LOG_WARNING, "Couldn't remove stale lock on %s", - dev); + 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); free(lock_file); lock_file = NULL; return -1; @@ -1579,6 +1332,7 @@ unlock() lock_file = NULL; } } +#endif #if defined(i386) && defined(HAS_BROKEN_IOCTL) int @@ -1598,7 +1352,7 @@ ioctl(fd, cmd, c) code = cmd; if (let == 't' && (75 <= code && code <= 90)) - syslog(LOG_INFO, "ioctl(%d, 0x%x ('%c', %d, %d), 0x%x)\n", fd, cmd, + info("ioctl(%d, 0x%x ('%c', %d, %d), 0x%x)\n", fd, cmd, let, code, size, c); #endif @@ -1607,12 +1361,12 @@ ioctl(fd, cmd, c) #ifdef DEBUGIOCTL serrno = errno; if (ret == -1) - syslog(LOG_INFO, "ioctl('%c', %d, %d) errno = %d (%m)\n", + info("ioctl('%c', %d, %d) errno = %d (%m)\n", let, code, size, errno); if (let == 't' && (75 <= code && code <= 90) && (cmd & IOC_OUT)) { int i, len = ((cmd >> 16) & IOCPARM_MASK); for (i = 0; i < len / 4; ++i) - syslog(LOG_INFO, "word[%d] @ 0x%06x = 0x%x\n", + info("word[%d] @ 0x%06x = 0x%x\n", i, &((int *) c)[i],((int *)c)[i]); } errno = serrno; @@ -1673,10 +1427,265 @@ int sigaction(int sig, const struct sigaction *act, struct sigaction *oact) if (!in) { in = 1; - syslog(LOG_WARNING, "PPPD: Inside modified HP and SPARC sigaction\n"); + warn("PPPD: Inside modified HP and SPARC sigaction\n"); } return sigvec(sig, &sv, NULL); } #endif + + +/* + * Code following is added for 2.3 compatibility + */ + +/* + * get_idle_time - return how long the link has been idle. + */ +int +get_idle_time(u, ip) + int u; + struct ppp_idle *ip; +{ + return (ioctl(ttyfd, PPPIOCGIDLE, ip) >= 0); +} + +/* + * get_ppp_stats - return statistics for the link. + */ +int +get_ppp_stats(u, stats) + int u; + struct pppd_stats *stats; +{ + struct ifpppstatsreq req; + + memset (&req, 0, sizeof (req)); + strlcpy(req.ifr_name, interface, sizeof(req.ifr_name)); + if (ioctl(sockfd, SIOCGPPPSTATS, &req) < 0) { + error("Couldn't get PPP statistics: %m"); + return 0; + } + stats->bytes_in = req.stats.p.ppp_ibytes; + stats->bytes_out = req.stats.p.ppp_obytes; + return 1; +} + + +/* + * get_loop_output - read characters from the loopback, form them + * into frames, and detect when we want to bring the real link up. + * Return value is 1 if we need to bring up the link, 0 otherwise. + */ +int +get_loop_output() +{ + +#if 0 + int rv = 0; + int n; + + while ((n = read(loop_master, inbuf, sizeof(inbuf))) >= 0) { + if (loop_chars(inbuf, n)) + rv = 1; + } + + if (n == 0) + fatal("eof on loopback"); + if (errno != EWOULDBLOCK) + fatal("read from loopback: %m"); + + return rv; +#endif + + return 0; +} + +/* + * sifnpmode - Set the mode for handling packets for a given NP. + */ +int +sifnpmode(u, proto, mode) + int u; + int proto; + enum NPmode mode; +{ + struct npioctl npi; + + npi.protocol = proto; + npi.mode = mode; + if (ioctl(ttyfd, PPPIOCSNPMODE, &npi) < 0) { + error("ioctl(set NP %d mode to %d): %m", proto, mode); + return 0; + } + return 1; +} + + +/* + * open_ppp_loopback - open the device we use for getting + * packets in demand mode, and connect it to a ppp interface. + * Here we use a pty. + */ +int +open_ppp_loopback() +{ + +#if 0 + int flags; + struct termios tios; + int pppdisc = PPPDISC; + + fatal("open_ppp_loopback called!"); + + if (openpty(&loop_master, &loop_slave, loop_name, NULL, NULL) < 0) + fatal("No free pty for loopback"); + SYSDEBUG(("using %s for loopback", loop_name)); + + if (tcgetattr(loop_slave, &tios) == 0) { + tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB); + tios.c_cflag |= CS8 | CREAD; + tios.c_iflag = IGNPAR; + tios.c_oflag = 0; + tios.c_lflag = 0; + if (tcsetattr(loop_slave, TCSAFLUSH, &tios) < 0) + warn("couldn't set attributes on loopback: %m"); + } + + if ((flags = fcntl(loop_master, F_GETFL)) != -1) + if (fcntl(loop_master, F_SETFL, flags | O_NONBLOCK) == -1) + warn("couldn't set loopback to nonblock: %m"); + + ttyfd = loop_slave; + if (ioctl(ttyfd, TIOCSETD, &pppdisc) < 0) + fatal("ioctl(TIOCSETD): %m"); + + /* + * Find out which interface we were given. + */ + if (ioctl(ttyfd, PPPIOCGUNIT, &ifunit) < 0) + fatal("ioctl(PPPIOCGUNIT): %m"); + + /* + * Enable debug in the driver if requested. + */ + if (kdebugflag) { + if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &flags) < 0) { + warn("ioctl (PPPIOCGFLAGS): %m"); + } else { + flags |= (kdebugflag & 0xFF) * SC_DEBUG; + if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &flags) < 0) + warn("ioctl(PPPIOCSFLAGS): %m"); + } + } + + return loop_master; +#endif + +} + +/* + * restore_loop - reattach the ppp unit to the loopback. + */ +void +restore_loop() +{ + int x; + + /* + * Transfer the ppp interface back to the loopback. + */ + if (ioctl(ttyfd, PPPIOCXFERUNIT, 0) < 0) + fatal("ioctl(transfer ppp unit): %m"); + x = PPPDISC; + if (ioctl(loop_slave, TIOCSETD, &x) < 0) + fatal("ioctl(TIOCSETD): %m"); + + /* + * Check that we got the same unit again. + */ + if (ioctl(loop_slave, PPPIOCGUNIT, &x) < 0) + fatal("ioctl(PPPIOCGUNIT): %m"); + if (x != ifunit) + fatal("transfer_ppp failed: wanted unit %d, got %d", + ifunit, x); + ttyfd = loop_slave; +} + + +/* + * Use the hostid as part of the random number seed. + */ +int +get_host_seed() +{ + return gethostid(); +} + + +/* + * sys_check_options - check the options that the user specified + */ +int +sys_check_options() +{ + /* + * We don't support demand dialing yet. + */ + if (demand) + { + option_error("PPP-2.3 for NeXTSTEP does not yet support demand dialing"); + return 0; + } + return 1; +} + + +/* + * sys_close - Clean up in a child process before execing. + */ +void +sys_close() +{ + close(sockfd); + if (loop_slave >= 0) { + close(loop_slave); + close(loop_master); + } + closelog(); +} + +#if 0 +/* + * wait_loop_output - wait until there is data available on the + * loopback, for the length of time specified by *timo (indefinite + * if timo is NULL). + */ +void wait_loop_output(timo) + struct timeval *timo; +{ + fd_set ready; + int n; + + FD_ZERO(&ready); + FD_SET(loop_master, &ready); + n = select(loop_master + 1, &ready, NULL, &ready, timo); + if (n < 0 && errno != EINTR) + fatal("select: %m"); +} + +/* + * wait_time - wait for a given length of time or until a + * signal is received. + */ +void wait_time(timo) + struct timeval *timo; +{ + int n; + + n = select(0, NULL, NULL, NULL, timo); + if (n < 0 && errno != EINTR) + fatal("select: %m"); +} +#endif