X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fsys-ultrix.c;fp=pppd%2Fsys-ultrix.c;h=0000000000000000000000000000000000000000;hp=69458943ff0ac6b05957cbbde565298dbf86d508;hb=5dce043b4b7e32d41598442361736a927a5db5e4;hpb=3e451dfe42426b51e6ce1d66a3e04de43e055568 diff --git a/pppd/sys-ultrix.c b/pppd/sys-ultrix.c deleted file mode 100644 index 6945894..0000000 --- a/pppd/sys-ultrix.c +++ /dev/null @@ -1,1438 +0,0 @@ -/* - * sys-ultrix.c - System-dependent procedures for setting up - * PPP interfaces on Ultrix systems. - * - * Copyright (c) 1995-2002 Paul Mackerras. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 3. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Paul Mackerras - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * Derived from main.c and pppd.h, which are: - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#define RCSID "$Id: sys-ultrix.c,v 1.35 2004/11/04 10:02:26 paulus Exp $" - -/* - * TODO: - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "pppd.h" - -static const char rcsid[] = RCSID; - -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 */ - -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 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 int sockfd; /* socket for doing interface ioctls */ - -static fd_set in_fds; /* set of fds that wait_input waits for */ -static int max_in_fd; /* highest fd set in in_fds */ - -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 */ - -/* Prototypes for procedures local to this file. */ -static int translate_speed __P((int)); -static int baud_rate_of __P((int)); -static int get_ether_addr __P((u_int32_t, struct sockaddr *)); - - -/* - * sys_init - System-dependent initialization. - */ -void -sys_init() -{ - /* Get an internet socket for doing socket ioctl's on. */ - if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) - fatal("Couldn't create IP socket: %m"); - - FD_ZERO(&in_fds); - max_in_fd = 0; -} - -/* - * sys_cleanup - restore any system state we modified before exiting: - * mark the interface down, delete default route and/or proxy arp entry. - * This shouldn't call die() because it's called from die(). - */ -void -sys_cleanup() -{ - struct ifreq ifr; - - if (if_is_up) { - 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, 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 - */ -int -sys_check_options() -{ - if (demand) { - option_error("Sorry - demand-dialling is not supported under Ultrix\n"); - return 0; - } - return 1; -} - -#if 0 -/* - * 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; -} -#endif - -/* - * 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; - extern char *no_ppp_msg; - - if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) - return 1; /* can't tell */ - - 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.ultrix\n\ -file in the ppp-2.2 distribution.\n"; - return ok; -} - -/* - * establish_ppp - Turn the serial port into a ppp interface. - */ -int -establish_ppp(fd) - int fd; -{ - int pppdisc = PPPDISC; - int x; - - /* - * Save the old line discipline of fd, and set it to PPP. - */ - if (ioctl(fd, TIOCGETD, &initdisc) < 0) - fatal("ioctl(TIOCGETD): %m"); - if (ioctl(fd, TIOCSETD, &pppdisc) < 0) - fatal("ioctl(TIOCSETD): %m"); - - /* - * Find out which interface we were given. - */ - if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0) { - fatal("ioctl(PPPIOCGUNIT): %m"); - - ppp_fd = fd; - - /* - * Enable debug in the driver if requested. - */ - if (kdebugflag) { - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - warn("ioctl (PPPIOCGFLAGS): %m"); - } else { - x |= (kdebugflag & 0xFF) * SC_DEBUG; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) - warn("ioctl(PPPIOCSFLAGS): %m"); - } - } - - /* - * Set device for non-blocking reads. - */ - if ((initfdflags = fcntl(fd, F_GETFL)) == -1 - || fcntl(fd, F_SETFL, initfdflags | O_NONBLOCK) == -1) { - warn("Couldn't set device to non-blocking mode: %m"); - } - - return fd; -} - -/* - * restore_loop - reattach the ppp unit to the loopback. - */ -void -restore_loop() -{ -} - -/* - * disestablish_ppp - Restore the serial port to normal operation. - * This shouldn't call die() because it's called from die(). - */ -void -disestablish_ppp(fd) - int fd; -{ - /* Reset non-blocking mode on fd. */ - if (initfdflags != -1 && fcntl(fd, F_SETFL, initfdflags) < 0) - warn("Couldn't restore device fd flags: %m"); - initfdflags = -1; - - /* Restore old line discipline. */ - if (initdisc >= 0 && ioctl(fd, TIOCSETD, &initdisc) < 0) - error("ioctl(TIOCSETD): %m"); - initdisc = -1; - - if (fd == ppp_fd) - ppp_fd = -1; -} - -/* - * Check whether the link seems not to be 8-bit clean. - */ -void -clean_check() -{ - int x; - char *s; - - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) == 0) { - s = NULL; - switch (~x & (SC_RCV_B7_0|SC_RCV_B7_1|SC_RCV_EVNP|SC_RCV_ODDP)) { - case SC_RCV_B7_0: - s = "bit 7 set to 1"; - break; - case SC_RCV_B7_1: - s = "bit 7 set to 0"; - break; - case SC_RCV_EVNP: - s = "odd parity"; - break; - case SC_RCV_ODDP: - s = "even parity"; - break; - } - if (s != NULL) { - warn("Serial link is not 8-bit clean:"); - warn("All received characters had %s", s); - } - } -} - - -/* - * 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; - warn("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. - */ -void -set_up_tty(fd, local) - int fd, local; -{ - int speed, x; - struct termios tios; - - if (tcgetattr(fd, &tios) < 0) - fatal("tcgetattr: %m"); - - if (!restore_term) { - inittermios = tios; - ioctl(fd, TIOCGWINSZ, &wsinfo); - } - - tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL); -#ifdef CRTSCTS - if (crtscts > 0 && !local) - 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 |= IXON | 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) - fatal("Baud rate for %s is 0; need explicit baud rate", devnam); - } - - if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) - fatal("tcsetattr: %m"); - - x = 0; - if (ioctl(fd, (crtscts > 0 || modem)? TIOCMODEM: TIOCNMODEM, &x) < 0) - warn("TIOC(N)MODEM: %m"); - if (ioctl(fd, (local || !modem)? TIOCNCAR: TIOCCAR) < 0) - warn("TIOC(N)CAR: %m"); - - baud_rate = inspeed = baud_rate_of(speed); - restore_term = 1; -} - -/* - * restore_tty - restore the terminal to the saved settings. - */ -void -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) - warn("tcsetattr: %m"); - ioctl(fd, TIOCSWINSZ, &wsinfo); - restore_term = 0; - } -} - -/* - * setdtr - control the DTR line on the serial port. - * This is called from die(), so it shouldn't call die(). - */ -void -setdtr(fd, on) -int fd, on; -{ - int modembits = TIOCM_DTR; - - ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits); -} - - -/* - * open_ppp_loopback - open the device we use for getting - * packets in demand mode, and connect it to a ppp interface. - * Here we use would use a pty, except that Ultrix ptys are brain-dead. - */ -int -open_ppp_loopback() -{ - fatal("open_ppp_loopback called!"); - /* return loop_master; */ -} - - -/* - * output - Output PPP packet. - */ -void -output(unit, p, len) - int unit; - u_char *p; - int len; -{ - if (debug) - dbglog("sent %P", p, len); - - if (write(ttyfd, p, len) < 0) { - if (errno != EIO) - error("write: %m"); - } -} - - -/* - * wait_input - wait until there is data available, - * for the length of time specified by *timo (indefinite - * if timo is NULL). - */ -void -wait_input(timo) - struct timeval *timo; -{ - fd_set ready; - int n; - - ready = in_fds; - n = select(ttyfd+1, &ready, NULL, &ready, timo); - if (n < 0 && errno != EINTR) - fatal("select: %m"); -} - - -/* - * add_fd - add an fd to the set that wait_input waits for. - */ -void add_fd(fd) - int fd; -{ - FD_SET(fd, &in_fds); - if (fd > max_in_fd) - max_in_fd = fd; -} - -/* - * remove_fd - remove an fd from the set that wait_input waits for. - */ -void remove_fd(fd) - int fd; -{ - FD_CLR(fd, &in_fds); -} - -#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; -{ - wait_time(timo); -} - - -/* - * 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 - -/* - * read_packet - get a PPP packet from the serial device. - */ -int -read_packet(buf) - u_char *buf; -{ - int len; - - if ((len = read(ttyfd, buf, PPP_MTU + PPP_HDRLEN)) < 0) { - if (errno == EWOULDBLOCK || errno == EINTR) - return -1; - fatal("read(fd): %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() -{ - return 0; -} - - -/* - * ppp_send_config - configure the transmit characteristics of - * the ppp interface. - */ -void -ppp_send_config(unit, mtu, asyncmap, pcomp, accomp) - int unit, mtu; - u_int32_t asyncmap; - int pcomp, accomp; -{ - u_int x; - - if (ioctl(ppp_fd, PPPIOCSMTU, &mtu) < 0) - fatal("ioctl(PPPIOCSMTU): %m"); - - if (ioctl(ppp_fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) - fatal("ioctl(PPPIOCSASYNCMAP): %m"); - - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) - fatal("ioctl (PPPIOCGFLAGS): %m"); - 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) - fatal("ioctl(PPPIOCSFLAGS): %m"); -} - - -/* - * ppp_set_xaccm - set the extended transmit ACCM for the interface. - */ -void -ppp_set_xaccm(unit, accm) - int unit; - ext_accm accm; -{ - if (ioctl(ppp_fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) - warn("ioctl(set extended ACCM): %m"); -} - - -/* - * ppp_recv_config - configure the receive-side characteristics of - * the ppp interface. - */ -void -ppp_recv_config(unit, mru, asyncmap, pcomp, accomp) - int unit, mru; - u_int32_t asyncmap; - int pcomp, accomp; -{ - int x; - - if (ioctl(ppp_fd, PPPIOCSMRU, (caddr_t) &mru) < 0) - fatal("ioctl(PPPIOCSMRU): %m"); - if (ioctl(ppp_fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) - fatal("ioctl(PPPIOCSRASYNCMAP): %m"); - if (ioctl(ppp_fd, 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) - 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. - */ -int -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; - if (ioctl(ttyfd, PPPIOCSCOMPRESS, (caddr_t) &data) >= 0) - return 1; - return (errno == ENOBUFS)? 0: -1; -} - -/* - * 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(ppp_fd, 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) - error("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(ppp_fd, 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; -} - -/* - * 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; -} - - -/* - * sifvjcomp - config tcp header compression - */ -int -sifvjcomp(u, vjcomp, cidcomp, maxcid) - int u, vjcomp, cidcomp, maxcid; -{ - u_int x; - - if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - error("ioctl (PPPIOCGFLAGS): %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) { - error("ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - if (ioctl(ppp_fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) { - error("ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * sifup - Config the interface up and enable IP packets to pass. - */ -int -sifup(u) - int u; -{ - struct ifreq ifr; - - strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - error("ioctl (SIOCGIFFLAGS): %m"); - return 0; - } - ifr.ifr_flags |= IFF_UP; - if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - 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) { - error("ioctl(set NP %d mode to %d): %m", proto, mode); - return 0; - } - return 1; -} - -/* - * sifdown - Config the interface down and disable IP. - */ -int -sifdown(u) - int u; -{ - struct ifreq ifr; - 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. */ - - strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - error("ioctl (SIOCGIFFLAGS): %m"); - rv = 0; - } else { - ifr.ifr_flags &= ~IFF_UP; - if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - error("ioctl(SIOCSIFFLAGS): %m"); - rv = 0; - } else - if_is_up = 0; - } - return rv; -} - -/* - * SET_SA_FAMILY - set the sa_family field of a struct sockaddr, - * if it exists. - */ -#define SET_SA_FAMILY(addr, family) \ - BZERO((char *) &(addr), sizeof(addr)); \ - addr.sa_family = (family); - -/* - * sifaddr - Config the interface IP addresses and netmask. - */ -int -sifaddr(u, o, h, m) - int u; - u_int32_t o, h, m; -{ - int ret; - struct ifreq ifr; - - ret = 1; - 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; - info("Setting interface mask to %s\n", ip_ntoa(m)); - if (ioctl(sockfd, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) { - error("ioctl(SIOCSIFNETMASK): %m"); - ret = 0; - } - } - ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o; - if (ioctl(sockfd, SIOCSIFADDR, (caddr_t) &ifr) < 0) { - error("ioctl(SIOCSIFADDR): %m"); - ret = 0; - } - ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h; - if (ioctl(sockfd, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) { - error("ioctl(SIOCSIFDSTADDR): %m"); - ret = 0; - } - ifaddrs[0] = o; - ifaddrs[1] = h; - return ret; -} - -/* - * cifaddr - Clear the interface IP addresses, and delete routes - * through the interface if possible. - */ -int -cifaddr(u, o, h) - int u; - u_int32_t o, h; -{ - struct rtentry rt; - - 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) { - error("ioctl(SIOCDELRT): %m"); - return 0; - } - return 1; -} - -/* - * sifdefaultroute - assign a default route through the address given. - */ -int -sifdefaultroute(u, l, g) - int u; - u_int32_t l, g; -{ - struct rtentry rt; - - BZERO(&rt, sizeof(rt)); - SET_SA_FAMILY(rt.rt_dst, AF_INET); - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g; - rt.rt_flags = RTF_GATEWAY; - if (ioctl(sockfd, SIOCADDRT, &rt) < 0) { - error("default route ioctl(SIOCADDRT): %m"); - return 0; - } - default_route_gateway = g; - return 1; -} - -/* - * cifdefaultroute - delete a default route through the address given. - */ -int -cifdefaultroute(u, l, g) - int u; - u_int32_t l, g; -{ - struct rtentry rt; - - BZERO(&rt, sizeof(rt)); - SET_SA_FAMILY(rt.rt_dst, AF_INET); - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g; - rt.rt_flags = RTF_GATEWAY; - if (ioctl(sockfd, SIOCDELRT, &rt) < 0) - warn("default route ioctl(SIOCDELRT): %m"); - default_route_gateway = 0; - return 1; -} - -/* - * sifproxyarp - Make a proxy ARP entry for the peer. - */ -int -sifproxyarp(unit, hisaddr) - int unit; - u_int32_t hisaddr; -{ - struct arpreq arpreq; - - BZERO(&arpreq, sizeof(arpreq)); - - /* - * Get the hardware address of an interface on the same subnet - * as our local address. - */ - if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) { - error("Cannot determine ethernet address for proxy ARP"); - return 0; - } - - 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(sockfd, SIOCSARP, (caddr_t)&arpreq) < 0) { - error("Couldn't add proxy arp entry: %m"); - return 0; - } - - proxy_arp_addr = hisaddr; - return 1; -} - -/* - * cifproxyarp - Delete the proxy ARP entry for the peer. - */ -int -cifproxyarp(unit, hisaddr) - int unit; - 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(sockfd, SIOCDARP, (caddr_t)&arpreq) < 0) { - warn("Couldn't delete proxy arp entry: %m"); - return 0; - } - proxy_arp_addr = 0; - return 1; -} - -/* - * get_ether_addr - get the hardware address of an interface on the - * the same subnet as ipaddr. - */ -#define MAX_IFS 32 - -static int -get_ether_addr(ipaddr, hwaddr) - u_int32_t ipaddr; - struct sockaddr *hwaddr; -{ - 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(sockfd, SIOCGIFCONF, &ifc) < 0) { - error("ioctl(SIOCGIFCONF): %m"); - return 0; - } - - /* - * Scan through looking for an interface with an Internet - * address on the same subnet as `ipaddr'. - */ - 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))) { - if (ifr->ifr_addr.sa_family == AF_INET) { - ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr; - strlcpy(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(sockfd, SIOCGIFFLAGS, &ifreq) < 0) - continue; - if ((ifreq.ifr_flags & - (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP)) - != (IFF_UP|IFF_BROADCAST)) - continue; - /* - * Get its netmask and check that it's on the right subnet. - */ - if (ioctl(sockfd, SIOCGIFNETMASK, &ifreq) < 0) - continue; - mask = ((struct sockaddr_in *) &ifreq.ifr_addr)->sin_addr.s_addr; - if ((ipaddr & mask) != (ina & mask)) - continue; - - break; - } - } - - if (ifr >= ifend) - return 0; - info("found interface %s for proxy arp", ifr->ifr_name); - - /* - * Grab the physical address for this interface. - */ - strlcpy(ifdevea.ifr_name, ifr->ifr_name, sizeof(ifdevea.ifr_name)); - if (ioctl(sockfd, SIOCRPHYSADDR, &ifdevea) < 0) { - error("Couldn't get h/w address for %s: %m", ifr->ifr_name); - return 0; - } - - hwaddr->sa_family = AF_UNSPEC; - BCOPY(ifdevea.current_pa, hwaddr->sa_data, 6); - return 1; -} - -/* - * 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. - */ -u_int32_t -GetMask(addr) - u_int32_t addr; -{ - u_int32_t mask, nmask, ina; - struct ifreq *ifr, *ifend, ifreq; - struct ifconf ifc; - struct ifreq ifs[MAX_IFS]; - - 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); - - /* - * Scan through the system's network interfaces. - */ - ifc.ifc_len = sizeof(ifs); - ifc.ifc_req = ifs; - if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) { - warn("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. - */ - 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)) - != 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 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; -} - - -/* - * Use the hostid as part of the random number seed. - */ -int -get_host_seed() -{ - return gethostid(); -} - - -/* - Seems like strdup() is not part of string package in Ultrix. - If I understood the man-page on the sun this should work. - - Robert Olsson -*/ - -char *strdup( in ) char *in; -{ - char* dup; - if(! (dup = (char *) malloc( strlen( in ) +1 ))) return NULL; - (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" - -void -logwtmp(line, name, host) - const 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)) { - 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); - } - close(fd); -} - -#if 0 -/* - * 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; - size_t l; - - if ((p = strrchr(dev, '/')) != NULL) - dev = p + 1; - l = strlen(LOCK_PREFIX) + strlen(dev) + 1; - lock_file = malloc(l); - if (lock_file == NULL) - novm("lock file name"); - 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 - && (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) { - 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); - notice("Removed stale lock on %s (pid %d)", - dev, pid); - continue; - } else - warn("Couldn't remove stale lock on %s", - dev); - } else - notice("Device %s is locked by pid %d", - dev, pid); - } - close(fd); - } else - error("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; - } -} -#endif