From 9c1252cd8a1991671d1e546f40a16c0099d5a8c1 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 19 May 1995 03:08:27 +0000 Subject: [PATCH] Initial revision --- pppd/sys-svr4.c | 937 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 937 insertions(+) create mode 100644 pppd/sys-svr4.c diff --git a/pppd/sys-svr4.c b/pppd/sys-svr4.c new file mode 100644 index 0000000..ce24dc4 --- /dev/null +++ b/pppd/sys-svr4.c @@ -0,0 +1,937 @@ +/* + * System-dependent procedures for pppd under Solaris 2. + * + * Copyright (c) 1994 The Australian National University. + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and its + * documentation is hereby granted, provided that the above copyright + * notice appears in all copies. This software is provided without any + * warranty, express or implied. The Australian National University + * makes no representations about the suitability of this software for + * any purpose. + * + * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY + * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF + * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO + * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, + * OR MODIFICATIONS. + */ + +#ifndef lint +static char rcsid[] = "$Id: sys-svr4.c,v 1.1 1995/05/19 03:08:27 paulus Exp $"; +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "pppd.h" + +static int pppfd; +static int fdmuxid = -1; +static int ipfd; +static int ipmuxid = -1; + +static int restore_term; +static struct termios inittermios; + +static int link_mtu, link_mru; + +#define NMODULES 32 +static int tty_nmodules; +static char tty_modules[NMODULES][FMNAMESZ+1]; + +/* + * sys_init - System-dependent initialization. + */ +void +sys_init() +{ + openlog("pppd", LOG_PID | LOG_NDELAY, LOG_PPP); + setlogmask(LOG_UPTO(LOG_INFO)); + if (debug) + setlogmask(LOG_UPTO(LOG_DEBUG)); + + ipfd = open("/dev/ip", O_RDWR, 0); + if (ipfd < 0) { + syslog(LOG_ERR, "Couldn't open IP device: %m"); + die(1); + } +} + +/* + * daemon - Detach us from controlling 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; +} + +/* + * note_debug_level - note a change in the debug level. + */ +void +note_debug_level() +{ + if (debug) { + syslog(LOG_INFO, "Debug turned ON, Level %d", debug); + setlogmask(LOG_UPTO(LOG_DEBUG)); + } else { + setlogmask(LOG_UPTO(LOG_WARNING)); + } +} + +/* + * ppp_available - check whether the system has any ppp interfaces + */ +int +ppp_available() +{ + return access("/dev/ppp", R_OK) >= 0; +} + +/* + * establish_ppp - Turn the serial port into a ppp interface. + */ +void +establish_ppp() +{ + int i; + + pppfd = open("/dev/ppp", O_RDWR | O_NONBLOCK, 0); + if (pppfd < 0) { + syslog(LOG_ERR, "Can't open /dev/ppp: %m"); + die(1); + } + + /* 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); + } + + /* Pop any existing modules off the tty stream. */ + for (i = 0;; ++i) + if (ioctl(fd, I_LOOK, tty_modules[i]) < 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); + } + if (ioctl(fd, I_PUSH, "ppp_comp") < 0) { + syslog(LOG_ERR, "Couldn't push PPP compression module: %m"); +/* die(1); */ + } + + /* 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); + } +} + +/* + * disestablish_ppp - Restore the serial port to normal operation. + * This shouldn't call die() because it's called from die(). + */ +void +disestablish_ppp() +{ + int i; + + if (fdmuxid >= 0) { + if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) { + syslog(LOG_ERR, "Can't unlink tty from PPP mux: %m"); + } + fdmuxid = -1; + + if (!hungup) { + while (ioctl(fd, I_POP, 0) >= 0) + ; + 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", + tty_modules[i]); + } + } +} + +/* + * List of valid speeds. + */ +struct speed { + int speed_int, speed_val; +} speeds[] = { +#ifdef B50 + { 50, B50 }, +#endif +#ifdef B75 + { 75, B75 }, +#endif +#ifdef B110 + { 110, B110 }, +#endif +#ifdef B134 + { 134, B134 }, +#endif +#ifdef B150 + { 150, B150 }, +#endif +#ifdef B200 + { 200, B200 }, +#endif +#ifdef B300 + { 300, B300 }, +#endif +#ifdef B600 + { 600, B600 }, +#endif +#ifdef B1200 + { 1200, B1200 }, +#endif +#ifdef B1800 + { 1800, B1800 }, +#endif +#ifdef B2000 + { 2000, B2000 }, +#endif +#ifdef B2400 + { 2400, B2400 }, +#endif +#ifdef B3600 + { 3600, B3600 }, +#endif +#ifdef B4800 + { 4800, B4800 }, +#endif +#ifdef B7200 + { 7200, B7200 }, +#endif +#ifdef B9600 + { 9600, B9600 }, +#endif +#ifdef B19200 + { 19200, B19200 }, +#endif +#ifdef B38400 + { 38400, B38400 }, +#endif +#ifdef EXTA + { 19200, EXTA }, +#endif +#ifdef EXTB + { 38400, EXTB }, +#endif +#ifdef B57600 + { 57600, B57600 }, +#endif +#ifdef B115200 + { 115200, B115200 }, +#endif + { 0, 0 } +}; + +/* + * Translate from bits/second to a speed_t. + */ +int +translate_speed(bps) + int bps; +{ + struct speed *speedp; + + if (bps == 0) + return 0; + for (speedp = speeds; speedp->speed_int; speedp++) + if (bps == speedp->speed_int) + return speedp->speed_val; + syslog(LOG_WARNING, "speed %d not supported", bps); + return 0; +} + +/* + * Translate from a speed_t to bits/second. + */ +int +baud_rate_of(speed) + int speed; +{ + struct speed *speedp; + + if (speed == 0) + return 0; + for (speedp = speeds; speedp->speed_int; speedp++) + if (speed == speedp->speed_val) + return speedp->speed_int; + return 0; +} + +/* + * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity, + * at the requested speed, etc. If `local' is true, set CLOCAL + * regardless of whether the modem option was specified. + */ +set_up_tty(fd, local) + int fd, local; +{ + int speed; + struct termios tios; + + if (tcgetattr(fd, &tios) < 0) { + syslog(LOG_ERR, "tcgetattr: %m"); + die(1); + } + + if (!restore_term) + inittermios = tios; + + tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL); + if (crtscts > 0) + tios.c_cflag |= CRTSCTS; + else if (crtscts < 0) + tios.c_cflag &= ~CRTSCTS; + + tios.c_cflag |= CS8 | CREAD | HUPCL; + if (local || !modem) + tios.c_cflag |= CLOCAL; + tios.c_iflag = IGNBRK | IGNPAR; + tios.c_oflag = 0; + tios.c_lflag = 0; + tios.c_cc[VMIN] = 1; + tios.c_cc[VTIME] = 0; + + if (crtscts == 2) { + tios.c_iflag |= IXOFF; + tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */ + tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */ + } + + speed = translate_speed(inspeed); + if (speed) { + cfsetospeed(&tios, speed); + cfsetispeed(&tios, speed); + } else { + speed = cfgetospeed(&tios); + /* + * We can't proceed if the serial port speed is 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 (tcsetattr(fd, TCSAFLUSH, &tios) < 0) { + syslog(LOG_ERR, "tcsetattr: %m"); + die(1); + } + + baud_rate = inspeed = baud_rate_of(speed); + restore_term = 1; +} + +/* + * restore_tty - restore the terminal to the saved settings. + */ +void +restore_tty() +{ + if (restore_term) { + if (!default_device) { + /* + * Turn off echoing, because otherwise we can get into + * a loop with the tty and the modem echoing to each other. + * We presume we are the sole user of this tty device, so + * when we close it, it will revert to its defaults anyway. + */ + inittermios.c_lflag &= ~(ECHO | ECHONL); + } + if (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0) + if (errno != ENXIO) + syslog(LOG_WARNING, "tcsetattr: %m"); + restore_term = 0; + } +} + +/* + * setdtr - control the DTR line on the serial port. + * This is called from die(), so it shouldn't call die(). + */ +setdtr(fd, on) +int fd, on; +{ + int modembits = TIOCM_DTR; + + ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits); +} + +/* + * output - Output PPP packet. + */ +void +output(unit, p, len) + int unit; + u_char *p; + int len; +{ + struct strbuf data; + + if (debug) + log_packet(p, len, "sent "); + + data.len = len; + data.buf = (caddr_t) p; + if (putmsg(pppfd, NULL, &data, 0) < 0) { + if (errno != ENXIO) { + syslog(LOG_ERR, "Couldn't send packet: %m"); + die(1); + } + } +} + +/* + * wait_input - wait until there is data available on fd, + * for the length of time specified by *timo (indefinite + * if timo is NULL). + */ +wait_input(timo) + struct timeval *timo; +{ + 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); + } +} + +/* + * read_packet - get a PPP packet from the serial device. + */ +int +read_packet(buf) + u_char *buf; +{ + struct strbuf ctrl, data; + int flags, len; + unsigned char ctrlbuf[sizeof(union DL_primitives)]; + + data.maxlen = PPP_MRU + PPP_HDRLEN; + data.buf = (caddr_t) buf; + ctrl.maxlen = sizeof(ctrlbuf); + ctrl.buf = (caddr_t) ctrlbuf; + flags = 0; + len = getmsg(pppfd, &ctrl, &data, &flags); + if (len < 0) { + if (errno = EAGAIN || errno == EINTR) + return -1; + syslog(LOG_ERR, "Error reading packet: %m"); + die(1); + } + + if (ctrl.len > 0) { + /* + * Got a M_PROTO or M_PCPROTO message. Interpret it + * as a DLPI primitive. + */ + } + + return data.len; +} + +/* + * 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; +{ + int cf[2]; + + if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) { + syslog(LOG_ERR, "Couldn't set MTU: %m"); + } + if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0) { + syslog(LOG_ERR, "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"); + } + link_mtu = mtu; +} + +/* + * ppp_set_xaccm - set the extended transmit ACCM for the interface. + */ +void +ppp_set_xaccm(unit, accm) + int unit; + ext_accm accm; +{ + if (strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) { + syslog(LOG_WARNING, "Couldn't 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 cf[2]; + + if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) { + syslog(LOG_ERR, "Couldn't set MRU: %m"); + } + if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) { + syslog(LOG_ERR, "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"); + } + link_mru = mru; +} + +/* + * ccp_test - ask kernel whether a given compression method + * is acceptable for use. + */ +ccp_test(unit, opt_ptr, opt_len, for_transmit) + int unit, opt_len, for_transmit; + u_char *opt_ptr; +{ + return strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP), + opt_ptr, opt_len, 0) >= 0; +} + +/* + * ccp_flags_set - inform kernel about the current state of CCP. + */ +void +ccp_flags_set(unit, isopen, isup) + int unit, isopen, isup; +{ + int cf[2]; + + cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0); + cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR; + if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { + syslog(LOG_ERR, "Couldn't set kernel CCP state: %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 cf[2]; + + cf[0] = cf[1] = 0; + if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) { + syslog(LOG_ERR, "Couldn't get compression flags: %m"); + return 0; + } + return cf[0] & CCP_FATALERROR; +} + +/* + * sifvjcomp - config tcp header compression + */ +int +sifvjcomp(u, vjcomp, xcidcomp, xmaxcid) + int u, vjcomp, xcidcomp, xmaxcid; +{ + int cf[2]; + char maxcid[2]; + + if (vjcomp) { + 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"); + } + } + + cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */ + + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0); + 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"); + } + + return 1; +} + +/* + * sifup - Config the interface up and enable IP packets to pass. + */ +int +sifup(u) + int u; +{ + struct ifreq ifr; + + if (ipmuxid < 0) { + syslog(LOG_DEBUG, "sifup: not plumbed!"); + return 0; + } + strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) { + syslog(LOG_ERR, "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"); + return 0; + } + return 1; +} + +/* + * sifdown - Config the interface down and disable IP. + */ +int +sifdown(u) + int u; +{ + struct ifreq ifr; + + if (ipmuxid < 0) + return 1; + strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) { + syslog(LOG_ERR, "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"); + return 0; + } + return 1; +} + +/* + * sifaddr - Config the interface IP addresses and netmask. + */ +int +sifaddr(u, o, h, m) + int u; + u_int32_t o, h, m; +{ + int fd; + struct ifreq ifr; + + fd = open("/dev/ppp", O_RDWR, 0); + if (fd < 0) { + syslog(LOG_ERR, "Can't open /dev/ppp (2): %m"); + die(1); + } + if (ioctl(fd, I_PUSH, "ip") < 0) { + syslog(LOG_ERR, "Can't push IP module: %m"); + close(fd); + return 0; + } + ipmuxid = ioctl(ipfd, I_LINK, fd); + close(fd); + if (ipmuxid < 0) { + syslog(LOG_ERR, "Can't link PPP device to IP: %m"); + return 0; + } + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + ifr.ifr_addr.sa_family = AF_INET; + ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o; + if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) { + syslog(LOG_ERR, "Couldn't set local IP address: %m"); + } + ifr.ifr_dstaddr.sa_family = AF_INET; + ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h; + if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) { + syslog(LOG_ERR, "Couldn't set remote IP address: %m"); + } + ifr.ifr_addr.sa_family = AF_INET; + ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = m; + if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) { + syslog(LOG_ERR, "Couldn't set IP netmask: %m"); + } + ifr.ifr_metric = link_mtu; + if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) { + syslog(LOG_ERR, "Couldn't set IP MTU: %m"); + } + + return 1; +} + +/* + * 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; +{ + if (ipmuxid >= 0) { + if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) { + syslog(LOG_ERR, "Can't remove ppp interface unit: %m"); + return 0; + } + ipmuxid = -1; + } + return 1; +} + +/* + * sifdefaultroute - assign a default route through the address given. + */ +int +sifdefaultroute(u, g) + int u; + u_int32_t g; +{ + return 1; +} + +/* + * cifdefaultroute - delete a default route through the address given. + */ +int +cifdefaultroute(u, g) + int u; + u_int32_t g; +{ + return 1; +} + +/* + * sifproxyarp - Make a proxy ARP entry for the peer. + */ +int +sifproxyarp(unit, hisaddr) + int unit; + u_int32_t hisaddr; +{ + return 1; +} + +/* + * cifproxyarp - Delete the proxy ARP entry for the peer. + */ +int +cifproxyarp(unit, hisaddr) + int unit; + u_int32_t hisaddr; +{ + return 1; +} + +/* + * get_ether_addr - get the hardware address of an interface on the + * the same subnet as ipaddr. + */ +#define MAX_IFS 32 + +int +get_ether_addr(ipaddr, hwaddr) + u_int32_t ipaddr; + struct sockaddr_dl *hwaddr; +{ +} + +/* + * 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; + int nif; + struct ifconf ifc; + + 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. + */ + if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0) + nif = MAX_IFS; + ifc.ifc_len = nif * sizeof(struct ifreq); + ifc.ifc_req = alloca(ifc.ifc_len); + if (ifc.ifc_req == 0) + return mask; + if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) { + syslog(LOG_WARNING, "Couldn't get system interface list: %m"); + return mask; + } + ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len); + for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) { + /* + * Check the interface's internet address. + */ + if (ifr->ifr_addr.sa_family != AF_INET) + continue; + ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr; + if ((ntohl(ina) & nmask) != (addr & nmask)) + continue; + /* + * Check that the interface is up, and not point-to-point or loopback. + */ + strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name)); + if (ioctl(ipfd, 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(ipfd, SIOCGIFNETMASK, &ifreq) < 0) + continue; + mask |= ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr.s_addr; + } + + return mask; +} + +/* + * logwtmp - write an accounting record to the /var/adm/wtmp file. + */ +int +logwtmp(line, name, host) + char *line, *name, *host; +{ +} + +/* + * gethostid - return the serial number of this machine. + */ +int +gethostid() +{ + char buf[32]; + + if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) { + syslog(LOG_ERR, "sysinfo: %m"); + return 0; + } + return strtol(buf, NULL, 16); +} + +int +strioctl(fd, cmd, ptr, ilen, olen) + int fd, cmd, ilen, olen; + char *ptr; +{ + struct strioctl str; + + str.ic_cmd = cmd; + str.ic_timout = 0; + str.ic_len = ilen; + str.ic_dp = ptr; + 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", + olen, str.ic_len, cmd); + return 0; +} + +int +lock(dev) + char *dev; +{ + return 1; +} + +int +unlock() +{ + return 1; +} -- 2.39.2