2 * sys-str.c - System-dependent procedures for setting up
3 * PPP interfaces on systems which use the STREAMS ppp interface.
5 * Copyright (c) 1989 Carnegie Mellon University.
8 * Redistribution and use in source and binary forms are permitted
9 * provided that the above copyright notice and this paragraph are
10 * duplicated in all such forms and that any documentation,
11 * advertising materials, and other materials related to such
12 * distribution and use acknowledge that the software was developed
13 * by Carnegie Mellon University. The name of the
14 * University may not be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 static char rcsid[] = "$Id: sys-aix4.c,v 1.1 1994/11/29 02:36:45 paulus Exp $";
33 #include <sys/termiox.h>
39 #include <sys/types.h>
40 #include <sys/socket.h>
42 #include <sys/stream.h>
43 #include <sys/stropts.h>
46 #include <net/ppp_defs.h>
47 #include <net/ppp_str.h>
48 #include <net/route.h>
49 #include <net/if_arp.h>
50 #include <netinet/in.h>
55 #define ifr_mtu ifr_metric
58 #define MAXMODULES 10 /* max number of module names to save */
59 static struct modlist {
60 char modname[FMNAMESZ+1];
61 } str_modules[MAXMODULES];
62 static int str_module_count = 0;
63 static int pushed_ppp;
64 static int closed_stdio;
66 static int restore_term; /* 1 => we've munged the terminal */
67 static struct termios inittermios; /* Initial TTY termios */
70 * sys_init - System-dependent initialization.
75 openlog("pppd", LOG_PID | LOG_NDELAY, LOG_PPP);
76 setlogmask(LOG_UPTO(LOG_INFO));
78 setlogmask(LOG_UPTO(LOG_DEBUG));
82 * note_debug_level - note a change in the debug level.
88 syslog(LOG_INFO, "Debug turned ON, Level %d", debug);
89 setlogmask(LOG_UPTO(LOG_DEBUG));
91 setlogmask(LOG_UPTO(LOG_WARNING));
96 * daemon - Detach us from the terminal session.
99 daemon(nochdir, noclose)
100 int nochdir, noclose;
104 if ((pid = fork()) < 0)
107 exit(0); /* parent dies */
112 fclose(stdin); /* don't need stdin, stdout, stderr */
121 * ppp_available - check if this kernel supports PPP.
128 fd = open("/dev/tty", O_RDONLY, 0);
130 return 1; /* can't find out - assume we have ppp */
131 ret = ioctl(fd, I_FIND, "pppasync") >= 0;
138 * establish_ppp - Turn the serial port into a ppp interface.
143 /* go through and save the name of all the modules, then pop em */
145 if (ioctl(fd, I_LOOK, str_modules[str_module_count].modname) < 0 ||
146 ioctl(fd, I_POP, 0) < 0)
148 MAINDEBUG((LOG_DEBUG, "popped stream module : %s",
149 str_modules[str_module_count].modname));
153 /* now push the async/fcs module */
154 if (ioctl(fd, I_PUSH, "pppasync") < 0) {
155 syslog(LOG_ERR, "ioctl(I_PUSH, ppp_async): %m");
158 /* push the compress module */
159 if (ioctl(fd, I_PUSH, "pppcomp") < 0) {
160 syslog(LOG_WARNING, "ioctl(I_PUSH, ppp_comp): %m");
162 /* finally, push the ppp_if module that actually handles the */
163 /* network interface */
164 if (ioctl(fd, I_PUSH, "pppif") < 0) {
165 syslog(LOG_ERR, "ioctl(I_PUSH, ppp_if): %m");
169 /* read mode, message non-discard mode
170 if (ioctl(fd, I_SRDOPT, RMSGN) < 0) {
171 syslog(LOG_ERR, "ioctl(I_SRDOPT, RMSGN): %m");
176 * Find out which interface we were given.
177 * (ppp_if handles this ioctl)
179 if (ioctl(fd, SIOCGETU, &ifunit) < 0) {
180 syslog(LOG_ERR, "ioctl(SIOCGETU): %m");
184 /* Set debug flags in driver */
185 if (ioctl(fd, SIOCSIFDEBUG, kdebugflag) < 0) {
186 syslog(LOG_ERR, "ioctl(SIOCSIFDEBUG): %m");
189 /* close stdin, stdout, stderr if they might refer to the device */
190 if (default_device && !closed_stdio) {
193 for (i = 0; i <= 2; ++i)
194 if (i != fd && i != s)
201 * disestablish_ppp - Restore the serial port to normal operation.
202 * It attempts to reconstruct the stream with the previously popped
203 * modules. This shouldn't call die() because it's called from die().
212 /* we can't push or pop modules after the stream has hung up */
213 str_module_count = 0;
214 restore_term = 0; /* nor can we fix up terminal settings */
220 * Check whether the link seems not to be 8-bit clean.
222 if (ioctl(fd, SIOCGIFDEBUG, (caddr_t) &flags) == 0) {
224 switch (~flags & PAI_FLAGS_HIBITS) {
226 s = "bit 7 set to 1";
229 s = "bit 7 set to 0";
231 case PAI_FLAGS_PAR_EVEN:
234 case PAI_FLAGS_PAR_ODD:
239 syslog(LOG_WARNING, "Serial link is not 8-bit clean:");
240 syslog(LOG_WARNING, "All received characters had %s", s);
245 while (ioctl(fd, I_POP, 0) == 0) /* pop any we pushed */
249 for (; str_module_count > 0; str_module_count--) {
250 if (ioctl(fd, I_PUSH, str_modules[str_module_count-1].modname)) {
252 syslog(LOG_WARNING, "str_restore: couldn't push module %s: %m",
253 str_modules[str_module_count-1].modname);
255 MAINDEBUG((LOG_INFO, "str_restore: pushed module %s",
256 str_modules[str_module_count-1].modname));
263 * List of valid speeds.
266 int speed_int, speed_val;
338 * Translate from bits/second to a speed_t.
344 struct speed *speedp;
348 for (speedp = speeds; speedp->speed_int; speedp++)
349 if (bps == speedp->speed_int)
350 return speedp->speed_val;
351 syslog(LOG_WARNING, "speed %d not supported", bps);
356 * Translate from a speed_t to bits/second.
362 struct speed *speedp;
366 for (speedp = speeds; speedp->speed_int; speedp++)
367 if (speed == speedp->speed_val)
368 return speedp->speed_int;
373 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
374 * at the requested speed, etc. If `local' is true, set CLOCAL
375 * regardless of whether the modem option was specified.
377 set_up_tty(fd, local)
384 if (tcgetattr(fd, &tios) < 0) {
385 syslog(LOG_ERR, "tcgetattr: %m");
392 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
394 bzero(&tiox, sizeof(tiox));
395 ioctl(fd, TCGETX, &tiox);
396 tiox.x_hflag = RTSXOFF;
397 ioctl(fd, TCSETX, &tiox);
398 tios.c_cflag &= ~(IXOFF);
399 } else if (crtscts < 0) {
400 bzero(&tiox, sizeof(tiox));
401 ioctl(fd, TCGETX, &tiox);
402 tiox.x_hflag &= ~RTSXOFF;
403 ioctl(fd, TCSETX, &tiox);
407 tios.c_cflag |= CS8 | CREAD | HUPCL;
409 tios.c_cflag |= CLOCAL;
410 tios.c_iflag = IGNBRK | IGNPAR;
414 tios.c_cc[VTIME] = 0;
417 tios.c_iflag |= IXOFF;
418 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
419 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
422 speed = translate_speed(inspeed);
424 cfsetospeed(&tios, speed);
425 cfsetispeed(&tios, speed);
427 speed = cfgetospeed(&tios);
429 * We can't proceed if the serial port speed is B0,
430 * since that implies that the serial port is disabled.
433 syslog(LOG_ERR, "Baud rate for %s is 0; need explicit baud rate",
439 if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) {
440 syslog(LOG_ERR, "tcsetattr: %m");
444 baud_rate = inspeed = baud_rate_of(speed);
449 * restore_tty - restore the terminal to the saved settings.
455 if (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
457 syslog(LOG_WARNING, "tcsetattr: %m");
463 * setdtr - control the DTR line on the serial port.
464 * This is called from die(), so it shouldn't call die().
469 int modembits = TIOCM_DTR;
471 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
476 * output - Output PPP packet.
487 MAINDEBUG((LOG_WARNING, "output: unit != 0!"));
489 log_packet(p, len, "sent ");
492 str.buf = (caddr_t) p;
493 if (putmsg(fd, NULL, &str, 0) < 0) {
494 if (errno != ENXIO) {
495 syslog(LOG_ERR, "putmsg: %m");
502 * wait_input - wait for input, for a length of time specified in *timo.
505 struct timeval *timo;
510 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
512 pfd.events = POLLIN | POLLPRI | POLLHUP;
513 if (poll(&pfd, 1, t) < 0 && errno != EINTR) {
514 syslog(LOG_ERR, "poll: %m");
520 * read_packet - get a PPP packet from the serial device.
526 struct strbuf str, ctl;
528 unsigned char ctlbuf[16];
530 str.maxlen = PPP_MTU + PPP_HDRLEN;
531 str.buf = (caddr_t) buf;
532 ctl.maxlen = sizeof(ctlbuf);
533 ctl.buf = (caddr_t) ctlbuf;
535 len = getmsg(fd, &ctl, &str, &i);
537 if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) {
540 syslog(LOG_ERR, "getmsg(fd) %m");
544 MAINDEBUG((LOG_DEBUG, "getmsg returned 0x%x",len));
546 syslog(LOG_NOTICE, "got ctrl msg len %d %x %x\n", ctl.len,
547 ctlbuf[0], ctlbuf[1]);
550 MAINDEBUG((LOG_DEBUG, "getmsg short return length %d", str.len));
559 * ppp_send_config - configure the transmit characteristics of
563 ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
571 strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
573 if (ioctl(s, SIOCSIFMTU, (caddr_t) &ifr) < 0) {
574 syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m");
578 if(ioctl(fd, SIOCSIFASYNCMAP, asyncmap) < 0) {
579 syslog(LOG_ERR, "ioctl(SIOCSIFASYNCMAP): %m");
584 if(ioctl(fd, SIOCSIFCOMPPROT, c) < 0) {
585 syslog(LOG_ERR, "ioctl(SIOCSIFCOMPPROT): %m");
590 if(ioctl(fd, SIOCSIFCOMPAC, c) < 0) {
591 syslog(LOG_ERR, "ioctl(SIOCSIFCOMPAC): %m");
598 * ppp_set_xaccm - set the extended transmit ACCM for the interface.
601 ppp_set_xaccm(unit, accm)
605 if (ioctl(fd, SIOCSIFXASYNCMAP, accm) < 0 && errno != ENOTTY)
606 syslog(LOG_WARNING, "ioctl(set extended ACCM): %m");
611 * ppp_recv_config - configure the receive-side characteristics of
615 ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
622 if (ioctl(fd, SIOCSIFMRU, mru) < 0) {
623 syslog(LOG_ERR, "ioctl(SIOCSIFMRU): %m");
626 if (ioctl(fd, SIOCSIFRASYNCMAP, (caddr_t) asyncmap) < 0) {
627 syslog(LOG_ERR, "ioctl(SIOCSIFRASYNCMAP): %m");
630 c = 2 + (pcomp? 1: 0);
631 if(ioctl(fd, SIOCSIFCOMPPROT, c) < 0) {
632 syslog(LOG_ERR, "ioctl(SIOCSIFCOMPPROT): %m");
635 c = 2 + (accomp? 1: 0);
636 if (ioctl(fd, SIOCSIFCOMPAC, c) < 0) {
637 syslog(LOG_ERR, "ioctl(SIOCSIFCOMPAC): %m");
642 * ccp_test - ask kernel whether a given compression method
643 * is acceptable for use.
645 ccp_test(unit, opt_ptr, opt_len, for_transmit)
646 int unit, opt_len, for_transmit;
649 struct ppp_option_data data;
651 if ((unsigned) opt_len > MAX_PPP_OPTION)
652 opt_len = MAX_PPP_OPTION;
653 data.length = opt_len;
654 data.transmit = for_transmit;
655 BCOPY(opt_ptr, data.opt_data, opt_len);
656 return ioctl(fd, SIOCSCOMPRESS, &data) >= 0;
660 * ccp_flags_set - inform kernel about the current state of CCP.
663 ccp_flags_set(unit, isopen, isup)
664 int unit, isopen, isup;
668 x = (isopen? 1: 0) + (isup? 2: 0);
669 if (ioctl(fd, SIOCSIFCOMP, x) < 0 && errno != ENOTTY)
670 syslog(LOG_ERR, "ioctl (SIOCSIFCOMP): %m");
674 * ccp_fatal_error - returns 1 if decompression was disabled as a
675 * result of an error detected after decompression of a packet,
676 * 0 otherwise. This is necessary because of patent nonsense.
679 ccp_fatal_error(unit)
684 if (ioctl(fd, SIOCGIFCOMP, &x) < 0) {
685 syslog(LOG_ERR, "ioctl(SIOCGIFCOMP): %m");
688 return x & CCP_FATALERROR;
692 * sifvjcomp - config tcp header compression
695 sifvjcomp(u, vjcomp, cidcomp, maxcid)
696 int u, vjcomp, cidcomp, maxcid;
700 x = (vjcomp? 1: 0) + (cidcomp? 0: 2) + (maxcid << 4);
701 if (ioctl(fd, SIOCSIFVJCOMP, x) < 0) {
702 syslog(LOG_ERR, "ioctl(SIOCSIFVJCOMP): %m");
709 * sifup - Config the interface up and enable IP packets to pass.
718 strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
719 if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
720 syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m");
723 ifr.ifr_flags |= IFF_UP;
724 if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
725 syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
728 npi.protocol = PPP_IP;
729 npi.mode = NPMODE_PASS;
730 if (ioctl(fd, SIOCSETNPMODE, &npi) < 0) {
731 if (errno != ENOTTY) {
732 syslog(LOG_ERR, "ioctl(SIOCSETNPMODE): %m");
741 * sifdown - Config the interface down.
752 npi.protocol = PPP_IP;
753 npi.mode = NPMODE_ERROR;
754 if (ioctl(fd, SIOCSETNPMODE, &npi) < 0) {
755 if (errno != ENOTTY) {
756 syslog(LOG_ERR, "ioctl(SIOCSETNPMODE): %m");
761 strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
762 if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
763 syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m");
766 ifr.ifr_flags &= ~IFF_UP;
767 if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
768 syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
776 * SET_SA_FAMILY - initialize a struct sockaddr, setting the sa_family field.
778 #define SET_SA_FAMILY(addr, family) \
779 BZERO((char *) &(addr), sizeof(addr)); \
780 addr.sa_family = (family);
783 * sifaddr - Config the interface IP addresses and netmask.
794 strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
795 SET_SA_FAMILY(ifr.ifr_addr, AF_INET);
797 syslog(LOG_INFO, "Setting interface mask to %s\n", ip_ntoa(m));
798 ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = m;
799 if (ioctl(s, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) {
800 syslog(LOG_ERR, "ioctl(SIOCSIFNETMASK): %m");
805 ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o;
806 if (ioctl(s, SIOCSIFADDR, (caddr_t) &ifr) < 0) {
807 syslog(LOG_ERR, "ioctl(SIOCSIFADDR): %m");
811 SET_SA_FAMILY(ifr.ifr_dstaddr, AF_INET);
812 ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h;
813 if (ioctl(s, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) {
814 syslog(LOG_ERR, "ioctl(SIOCSIFDSTADDR): %m");
817 ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o;
818 if (ioctl(s, SIOCSIFADDR, (caddr_t) &ifr) < 0) {
819 syslog(LOG_ERR, "ioctl(SIOCSIFADDR): %m");
826 * cifaddr - Clear the interface IP addresses, and delete routes
827 * through the interface if possible.
836 SET_SA_FAMILY(rt.rt_dst, AF_INET);
837 ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = h;
838 SET_SA_FAMILY(rt.rt_gateway, AF_INET);
839 ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = o;
840 rt.rt_flags = RTF_HOST;
841 if (ioctl(s, SIOCDELRT, (caddr_t) &rt) < 0) {
842 syslog(LOG_ERR, "ioctl(SIOCDELRT): %m");
849 * sifdefaultroute - assign a default route through the address given.
852 sifdefaultroute(u, g)
858 SET_SA_FAMILY(rt.rt_dst, AF_INET);
859 SET_SA_FAMILY(rt.rt_gateway, AF_INET);
860 ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g;
861 rt.rt_flags = RTF_GATEWAY;
862 if (ioctl(s, SIOCADDRT, &rt) < 0) {
863 syslog(LOG_ERR, "default route ioctl(SIOCADDRT): %m");
870 * cifdefaultroute - delete a default route through the address given.
873 cifdefaultroute(u, g)
879 SET_SA_FAMILY(rt.rt_dst, AF_INET);
880 SET_SA_FAMILY(rt.rt_gateway, AF_INET);
881 ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g;
882 rt.rt_flags = RTF_GATEWAY;
883 if (ioctl(s, SIOCDELRT, &rt) < 0) {
884 syslog(LOG_ERR, "default route ioctl(SIOCDELRT): %m");
891 * sifproxyarp - Make a proxy ARP entry for the peer.
894 sifproxyarp(unit, hisaddr)
898 struct arpreq arpreq;
900 BZERO(&arpreq, sizeof(arpreq));
903 * Get the hardware address of an interface on the same subnet
904 * as our local address.
906 if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) {
907 syslog(LOG_WARNING, "Cannot determine ethernet address for proxy ARP");
911 SET_SA_FAMILY(arpreq.arp_pa, AF_INET);
912 ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr;
913 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
914 if (ioctl(s, SIOCSARP, (caddr_t)&arpreq) < 0) {
915 syslog(LOG_ERR, "ioctl(SIOCSARP): %m");
923 * cifproxyarp - Delete the proxy ARP entry for the peer.
926 cifproxyarp(unit, hisaddr)
930 struct arpreq arpreq;
932 BZERO(&arpreq, sizeof(arpreq));
933 SET_SA_FAMILY(arpreq.arp_pa, AF_INET);
934 ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr;
935 if (ioctl(s, SIOCDARP, (caddr_t)&arpreq) < 0) {
936 syslog(LOG_ERR, "ioctl(SIOCDARP): %m");
943 * get_ether_addr - get the hardware address of an interface on the
944 * the same subnet as ipaddr. Code borrowed from myetheraddr.c
945 * in the cslip-2.6 distribution, which is subject to the following
946 * copyright notice (which also applies to logwtmp below):
948 * Copyright (c) 1990, 1992 The Regents of the University of California.
949 * All rights reserved.
951 * Redistribution and use in source and binary forms, with or without
952 * modification, are permitted provided that: (1) source code distributions
953 * retain the above copyright notice and this paragraph in its entirety, (2)
954 * distributions including binary code include the above copyright notice and
955 * this paragraph in its entirety in the documentation or other materials
956 * provided with the distribution, and (3) all advertising materials mentioning
957 * features or use of this software display the following acknowledgement:
958 * ``This product includes software developed by the University of California,
959 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
960 * the University nor the names of its contributors may be used to endorse
961 * or promote products derived from this software without specific prior
962 * written permission.
963 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
964 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
965 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
969 #include <arpa/inet.h>
970 #include <netinet/in_var.h>
971 #include <net/if_dl.h>
973 /* Cast a struct sockaddr to a structaddr_in */
974 #define SATOSIN(sa) ((struct sockaddr_in *)(sa))
976 /* Determine if "bits" is set in "flag" */
977 #define ALLSET(flag, bits) (((flag) & (bits)) == (bits))
979 static struct nlist nl[] = {
985 int kvm_read(int fd, off_t offset, void *buf, int nbytes)
987 if (lseek(fd, offset, SEEK_SET) != offset) {
988 syslog(LOG_ERR,"lseek in kmem: %m");
991 return(read(fd, buf, nbytes));
995 get_ether_addr(ipaddr, hwaddr)
997 struct sockaddr *hwaddr;
1000 register struct ifnet *ifp;
1001 register struct arpcom *ac;
1002 struct arpcom arpcom;
1003 struct in_addr *inp;
1004 register struct ifaddr *ifa;
1005 register struct in_ifaddr *in;
1008 struct in_ifaddr in;
1010 struct ifaddr *ifap;
1011 struct sockaddr ifaddrsaddr;
1012 struct sockaddr_in ifmasksaddr;
1013 struct sockaddr_in *ifinetptr;
1014 struct sockaddr_dl *iflinkptr;
1015 u_long addr, mask, ifip;
1018 /* Open kernel memory for reading */
1019 if ((kd = open("/dev/kmem", O_RDONLY)) < 0) {
1020 syslog(LOG_ERR, "/dev/kmem: %m");
1024 /* Fetch namelist */
1025 if (nlist("/unix", nl) != 0) {
1026 syslog(LOG_ERR, "nlist(): %m");
1031 ifp = &arpcom.ac_if;
1035 if (kvm_read(kd, nl[N_IFNET].n_value, (char *)&addr, sizeof(addr))
1037 syslog(LOG_ERR, "error reading ifnet addr");
1040 for ( ; addr && !found; addr = (u_long)ifp->if_next) {
1041 if (kvm_read(kd, addr, (char *)ac, sizeof(*ac)) != sizeof(*ac)) {
1042 syslog(LOG_ERR, "error reading ifnet");
1046 /* Only look at configured, broadcast interfaces */
1047 if (!ALLSET(ifp->if_flags, IFF_UP | IFF_BROADCAST))
1049 /* This probably can't happen... */
1050 if (ifp->if_addrlist == 0)
1053 /* Get interface ip address */
1054 for (ifap = ifp->if_addrlist; ifap; ifap=ifaddr.ifa.ifa_next) {
1055 if (kvm_read(kd, (u_long)ifap, (char *)&ifaddr,
1056 sizeof(ifaddr)) != sizeof(ifaddr)) {
1057 syslog(LOG_ERR, "error reading ifaddr");
1060 if (kvm_read(kd, (u_long)ifaddr.ifa.ifa_addr, &ifaddrsaddr,
1061 sizeof(struct sockaddr_in)) != sizeof(struct sockaddr_in)) {
1062 syslog(LOG_ERR, "error reading ifaddrsaddr");
1065 if (kvm_read(kd, (u_long)ifaddr.ifa.ifa_netmask, &ifmasksaddr,
1066 sizeof(struct sockaddr_in)) != sizeof(struct sockaddr_in)) {
1067 syslog(LOG_ERR, "error reading ifmasksaddr");
1070 /* Check if this interface on the right subnet */
1071 switch (ifaddrsaddr.sa_family) {
1073 hwaddr->sa_family = AF_UNSPEC;
1074 iflinkptr = (struct sockaddr_dl *) &ifaddrsaddr;
1075 bcopy(LLADDR(iflinkptr),hwaddr->sa_data,iflinkptr->sdl_alen);
1078 ifinetptr= (struct sockaddr_in *) &ifaddrsaddr;
1079 ifip = ifinetptr->sin_addr.s_addr;
1080 if (kvm_read(kd, (u_long)ifaddr.ifa.ifa_netmask, &ifmasksaddr,
1081 sizeof(struct sockaddr_in)) != sizeof(struct sockaddr_in)) {
1082 syslog(LOG_ERR, "error reading ifmasksaddr");
1085 mask = ifmasksaddr.sin_addr.s_addr;
1086 if ((ipaddr & mask) == (ifip & mask))
1098 #define WTMPFILE "/var/adm/wtmp"
1101 logwtmp(line, name, host)
1102 char *line, *name, *host;
1108 if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0)
1110 if (!fstat(fd, &buf)) {
1111 (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line));
1112 (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name));
1113 (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host));
1114 (void)time(&ut.ut_time);
1115 if (write(fd, (char *)&ut, sizeof(struct utmp)) != sizeof(struct utmp))
1116 (void)ftruncate(fd, buf.st_size);