2 * System-dependent procedures for pppd under Solaris 2.
4 * Copyright (c) 1994 The Australian National University.
7 * Permission to use, copy, modify, and distribute this software and its
8 * documentation is hereby granted, provided that the above copyright
9 * notice appears in all copies. This software is provided without any
10 * warranty, express or implied. The Australian National University
11 * makes no representations about the suitability of this software for
14 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
15 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
16 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
17 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
20 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
21 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
23 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
24 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
28 #define RCSID "$Id: sys-svr4.c,v 1.40 2000/01/28 01:51:19 masputra Exp $"
40 #include <sys/termiox.h>
44 #include <sys/types.h>
45 #include <sys/ioccom.h>
46 #include <sys/stream.h>
47 #include <sys/stropts.h>
48 #include <sys/socket.h>
49 #include <sys/sockio.h>
50 #include <sys/sysmacros.h>
51 #include <sys/systeminfo.h>
54 #include <sys/mkdev.h>
56 #include <net/if_arp.h>
57 #include <net/route.h>
58 #include <net/ppp_defs.h>
59 #include <net/pppio.h>
60 #include <netinet/in.h>
62 #include <sys/tihdr.h>
63 #include <sys/tiuser.h>
64 #include <inet/common.h>
65 #include <inet/mib2.h>
66 #include <sys/ethernet.h>
71 #if !defined(PPP_DEV_NAME)
72 #define PPP_DEV_NAME "/dev/ppp"
73 #endif /* !defined(PPP_DEV_NAME) */
75 #if !defined(AHDLC_MOD_NAME)
76 #define AHDLC_MOD_NAME "ppp_ahdl"
77 #endif /* !defined(AHDLC_MOD_NAME) */
79 #if !defined(COMP_MOD_NAME)
80 #define COMP_MOD_NAME "ppp_comp"
81 #endif /* !defined(COMP_MOD_NAME) */
83 #if !defined(IP_DEV_NAME)
84 #define IP_DEV_NAME "/dev/ip"
85 #endif /* !defined(IP_DEV_NAME) */
87 #if !defined(IP_MOD_NAME)
88 #define IP_MOD_NAME "ip"
89 #endif /* !defined(IP_MOD_NAME) */
91 #if !defined(UDP_DEV_NAME) && defined(SOL2)
92 #define UDP_DEV_NAME "/dev/udp"
93 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
95 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
96 #define UDP6_DEV_NAME "/dev/udp6"
97 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
99 static const char rcsid[] = RCSID;
103 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
104 * under. It is used in place of "/dev/ip" since STREAMS will not let
105 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
106 * driver at the bottom of the tunneling interfaces stream.
108 static char *mux_dev_name = UDP_DEV_NAME;
110 static char *mux_dev_name = IP_DEV_NAME;
113 static int fdmuxid = -1;
115 static int ipmuxid = -1;
117 #if defined(INET6) && defined(SOL2)
118 static int ip6fd; /* IP file descriptor */
119 static int ip6muxid = -1; /* Multiplexer file descriptor */
120 static int if6_is_up = 0; /* IPv6 interface has been marked up */
122 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
123 s->sin6_addr.s6_addr32[0] = htonl(as); \
124 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
125 s->sin6_family = AF_INET6; \
126 l.lifr_addr.ss_family = AF_INET6; \
127 l.lifr_addrlen = 10; \
128 l.lifr_addr = laddr; \
131 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
132 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
134 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
135 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
137 #endif /* defined(INET6) && defined(SOL2) */
139 static int restore_term;
140 static struct termios inittermios;
142 static struct termiox inittermiox;
143 static int termiox_ok;
145 static struct winsize wsinfo; /* Initial window size info */
146 static pid_t tty_sid; /* original session ID for terminal */
148 extern u_char inpacket_buf[]; /* borrowed from main.c */
150 #define MAX_POLLFDS 32
151 static struct pollfd pollfds[MAX_POLLFDS];
152 static int n_pollfds;
154 static int link_mtu, link_mru;
157 static int tty_nmodules;
158 static char tty_modules[NMODULES][FMNAMESZ+1];
159 static int tty_npushed;
161 static int if_is_up; /* Interface has been marked up */
162 static u_int32_t remote_addr; /* IP address of peer */
163 static u_int32_t default_route_gateway; /* Gateway for default route added */
164 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
166 /* Prototypes for procedures local to this file. */
167 static int translate_speed __P((int));
168 static int baud_rate_of __P((int));
169 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
170 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
171 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
172 static int dlpi_attach __P((int, int));
173 static int dlpi_info_req __P((int));
174 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
175 static int strioctl __P((int, int, void *, int, int));
179 * sifppa - Sets interface ppa
181 * without setting the ppa, ip module will return EINVAL upon setting the
182 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
183 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
184 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
185 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
186 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
187 * is required because the ppp DLPI provider advertises itself as
188 * a DLPI style 2 type, which requires a point of attachment to be
189 * specified. The only way the user can specify a point of attachment
190 * is via SIOCSLIFNAME or IF_UNITSEL.
192 * Such changes in the behavior of ip module was made to meet new or
193 * evolving standards requirements.
201 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
205 #if defined(SOL2) && defined(INET6)
207 * slifname - Sets interface ppa and flags
209 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
210 * be set in order to declare this as an IPv6 interface
220 memset(&lifr, 0, sizeof(lifr));
221 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
225 lifr.lifr_flags |= IFF_IPV6;
226 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
228 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
230 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
239 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
241 * walks the list of valid ethernet interfaces, and convert the first
242 * found 48-bit MAC address into EUI 64. caller also assumes that
243 * the system has a properly configured Ethernet interface for this
244 * function to return non-zero.
247 ether_to_eui64(eui64_t *p_eui64)
251 struct lifreq *plifreq;
253 int fd, num_ifs, i, found;
256 struct sockaddr s_eth_addr;
257 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
259 fd = socket(AF_INET, SOCK_DGRAM, 0);
265 * Find out how many interfaces are running
267 lifn.lifn_family = AF_UNSPEC;
268 lifn.lifn_flags = LIFC_NOXMIT;
269 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
271 error("could not determine number of interfaces: %m");
275 num_ifs = lifn.lifn_count;
276 req_size = num_ifs * sizeof(struct lifreq);
277 req = malloc(req_size);
280 error("out of memory");
285 * Get interface configuration info for all interfaces
287 lifc.lifc_family = AF_UNSPEC;
288 lifc.lifc_flags = LIFC_NOXMIT;
289 lifc.lifc_len = req_size;
291 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
294 error("SIOCGLIFCONF: %m");
299 * And traverse each interface to look specifically for the first
300 * occurence of an Ethernet interface which has been marked up
302 plifreq = lifc.lifc_req;
304 for (i = lifc.lifc_len / sizeof(struct lifreq); i>0; i--, plifreq++) {
306 if (strchr(plifreq->lifr_name, ':') != NULL)
309 memset(&lifr, 0, sizeof(lifr));
310 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
311 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
314 error("SIOCGLIFFLAGS: %m");
317 fl = lifr.lifr_flags;
319 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
320 != (IFF_UP | IFF_BROADCAST))
330 error("no persistent id can be found");
335 * Send DL_INFO_REQ to the driver to solicit its MAC address
337 if (!get_hw_addr_dlpi(plifreq->lifr_name, &s_eth_addr)) {
338 error("could not obtain hardware address for %s", plifreq->lifr_name);
343 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
345 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
346 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
347 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
348 p_eui64->e8[3] = 0xFF;
349 p_eui64->e8[4] = 0xFE;
350 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
351 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
352 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
356 #endif /* defined(SOL2) && defined(INET6) */
359 * sys_init - System-dependent initialization.
366 #if defined(INET6) && defined(SOL2)
369 #endif /* defined(INET6) && defined(SOL2) */
372 union DL_primitives prim;
375 #endif /* !defined(SOL2) */
377 ipfd = open(mux_dev_name, O_RDWR, 0);
379 fatal("Couldn't open IP device: %m");
381 #if defined(INET6) && defined(SOL2)
382 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
384 fatal("Couldn't open IP device (2): %m");
385 #endif /* defined(INET6) && defined(SOL2) */
387 if (default_device && !notty)
388 tty_sid = getsid((pid_t)0);
390 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
392 fatal("Can't open %s: %m", PPP_DEV_NAME);
393 if (kdebugflag & 1) {
394 x = PPPDBG_LOG + PPPDBG_DRIVER;
395 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
398 /* Assign a new PPA and get its unit number. */
399 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
400 fatal("Can't create new PPP interface: %m");
404 * Since sys_init() is called prior to ifname being set in main(),
405 * we need to get the ifname now, otherwise slifname(), and others,
406 * will fail, or maybe, I should move them to a later point ?
407 * <adi.masputra@sun.com>
409 sprintf(ifname, "ppp%d", ifunit);
410 #endif /* defined(SOL2) */
412 * Open the ppp device again and link it under the ip multiplexor.
413 * IP will assign a unit number which hopefully is the same as ifunit.
414 * I don't know any way to be certain they will be the same. :-(
416 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
418 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
419 if (kdebugflag & 1) {
420 x = PPPDBG_LOG + PPPDBG_DRIVER;
421 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
424 #if defined(INET6) && defined(SOL2)
425 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
428 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
430 if (kdebugflag & 1) {
431 x = PPPDBG_LOG + PPPDBG_DRIVER;
432 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
434 #endif /* defined(INET6) && defined(SOL2) */
437 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
441 #endif /* defined(INET6) */
442 fatal("Can't push IP module: %m");
446 * Assign ppa according to the unit number returned by ppp device
447 * after plumbing is completed above.
449 if (sifppa(ifd, ifunit) < 0) {
453 #endif /* defined(INET6) */
454 fatal("Can't set ppa for unit %d: %m", ifunit);
459 * An IPv6 interface is created anyway, even when the user does not
460 * explicitly enable it. Note that the interface will be marked
461 * IPv6 during slifname().
463 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
466 fatal("Can't push IP module (2): %m");
470 * Assign ppa according to the unit number returned by ppp device
471 * after plumbing is completed above. In addition, mark the interface
472 * as an IPv6 interface.
474 if (slifname(i6fd, ifunit) < 0) {
477 fatal("Can't set ifname for unit %d: %m", ifunit);
479 #endif /* defined(INET6) */
481 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
486 #endif /* defined(INET6) */
487 fatal("Can't I_PLINK PPP device to IP: %m");
490 memset(&ifr, 0, sizeof(ifr));
491 sprintf(ifr.ifr_name, "%s", ifname);
492 ifr.ifr_ip_muxid = ipmuxid;
495 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
496 * This is so that an arbitrary module can be inserted, or deleted,
497 * between ip module and the device driver without tearing down the
498 * existing stream. Such feature requires the mux ids, which is set
499 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
501 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
502 ioctl(ipfd, I_PUNLINK, ipmuxid);
505 #endif /* defined(INET6) */
506 fatal("SIOCSIFMUXID: %m");
509 #else /* else if !defined(SOL2) */
511 if (dlpi_attach(ifd, ifunit) < 0 ||
512 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
514 fatal("Can't attach to ppp%d: %m", ifunit);
517 ipmuxid = ioctl(ipfd, I_LINK, ifd);
520 fatal("Can't link PPP device to IP: %m");
521 #endif /* defined(SOL2) */
523 #if defined(INET6) && defined(SOL2)
524 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
527 ioctl(ipfd, I_PUNLINK, ipmuxid);
528 fatal("Can't I_PLINK PPP device to IP (2): %m");
531 memset(&lifr, 0, sizeof(lifr));
532 sprintf(lifr.lifr_name, "%s", ifname);
533 lifr.lifr_ip_muxid = ip6muxid;
536 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
538 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
539 ioctl(ipfd, I_PUNLINK, ipmuxid);
540 ioctl(ip6fd, I_PUNLINK, ip6muxid);
541 fatal("Can't link PPP device to IP (2): %m");
543 #endif /* defined(INET6) && defined(SOL2) */
546 /* Set the interface name for the link. */
547 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "ppp%d", ifunit);
548 ifr.ifr_metric = ipmuxid;
549 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
550 fatal("Can't set interface name %s: %m", ifr.ifr_name);
551 #endif /* !defined(SOL2) */
557 * sys_cleanup - restore any system state we modified before exiting:
558 * mark the interface down, delete default route and/or proxy arp entry.
559 * This should call die() because it's called from die().
568 #endif /* defined(INET6) */
569 #endif /* defined(SOL2) */
571 #if defined(SOL2) && defined(INET6)
574 #endif /* defined(SOL2) && defined(INET6) */
577 if (default_route_gateway)
578 cifdefaultroute(0, default_route_gateway, default_route_gateway);
580 cifproxyarp(0, proxy_arp_addr);
583 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
584 * unlink and re-link the modules, causing the muxid to change.
586 memset(&ifr, 0, sizeof(ifr));
587 sprintf(ifr.ifr_name, "%s", ifname);
588 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
589 error("SIOCGIFFLAGS: %m");
593 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
594 error("SIOCGIFMUXID: %m");
598 ipmuxid = ifr.ifr_ip_muxid;
600 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
601 error("Can't I_PUNLINK PPP from IP: %m");
606 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
607 * unlink and re-link the modules, causing the muxid to change.
609 memset(&lifr, 0, sizeof(lifr));
610 sprintf(lifr.lifr_name, "%s", ifname);
611 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
612 error("SIOCGLIFFLAGS: %m");
616 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
617 error("SIOCGLIFMUXID: %m");
621 ip6muxid = lifr.lifr_ip_muxid;
623 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
624 error("Can't I_PUNLINK PPP from IP (2): %m");
626 #endif /* defined(INET6) */
627 #endif /* defined(SOL2) */
631 * sys_close - Clean up in a child process before execing.
637 #if defined(INET6) && defined(SOL2)
639 #endif /* defined(INET6) && defined(SOL2) */
645 * sys_check_options - check the options that the user specified
655 * daemon - Detach us from controlling terminal session.
658 daemon(nochdir, noclose)
659 int nochdir, noclose;
663 if ((pid = fork()) < 0)
666 exit(0); /* parent dies */
671 fclose(stdin); /* don't need stdin, stdout, stderr */
680 * ppp_available - check whether the system has any ppp interfaces
687 return stat(PPP_DEV_NAME, &buf) >= 0;
691 * establish_ppp - Turn the serial port into a ppp interface.
699 /* Pop any existing modules off the tty stream. */
701 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
702 || strcmp(tty_modules[i], "ptem") == 0
703 || ioctl(fd, I_POP, 0) < 0)
707 /* Push the async hdlc module and the compressor module. */
711 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
712 error("Couldn't push PPP Async HDLC module: %m");
717 if (kdebugflag & 4) {
718 i = PPPDBG_LOG + PPPDBG_AHDLC;
719 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
721 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
722 error("Couldn't push PPP compression module: %m");
725 if (kdebugflag & 2) {
726 i = PPPDBG_LOG + PPPDBG_COMP;
727 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
730 /* Link the serial port under the PPP multiplexor. */
731 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
732 error("Can't link tty to PPP mux: %m");
740 * restore_loop - reattach the ppp unit to the loopback.
741 * This doesn't need to do anything because disestablish_ppp does it.
749 * disestablish_ppp - Restore the serial port to normal operation.
750 * It attempts to reconstruct the stream with the previously popped
751 * modules. This shouldn't call die() because it's called from die().
760 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
762 error("Can't unlink tty from PPP mux: %m");
767 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
769 for (i = tty_nmodules - 1; i >= 0; --i)
770 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
771 error("Couldn't restore tty module %s: %m",
774 if (hungup && default_device && tty_sid > 0) {
776 * If we have received a hangup, we need to send a SIGHUP
777 * to the terminal's controlling process. The reason is
778 * that the original stream head for the terminal hasn't
779 * seen the M_HANGUP message (it went up through the ppp
780 * driver to the stream head for our fd to /dev/ppp).
782 kill(tty_sid, SIGHUP);
788 * Check whether the link seems not to be 8-bit clean.
796 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
801 s = "bit 7 set to 1";
804 s = "bit 7 set to 0";
814 warn("Serial link is not 8-bit clean:");
815 warn("All received characters had %s", s);
820 * List of valid speeds.
823 int speed_int, speed_val;
910 * Translate from bits/second to a speed_t.
916 struct speed *speedp;
920 for (speedp = speeds; speedp->speed_int; speedp++)
921 if (bps == speedp->speed_int)
922 return speedp->speed_val;
923 warn("speed %d not supported", bps);
928 * Translate from a speed_t to bits/second.
934 struct speed *speedp;
938 for (speedp = speeds; speedp->speed_int; speedp++)
939 if (speed == speedp->speed_val)
940 return speedp->speed_int;
945 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
946 * at the requested speed, etc. If `local' is true, set CLOCAL
947 * regardless of whether the modem option was specified.
950 set_up_tty(fd, local)
955 #if !defined (CRTSCTS)
959 if (!sync_serial && tcgetattr(fd, &tios) < 0)
960 fatal("tcgetattr: %m");
964 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
977 ioctl(fd, TIOCGWINSZ, &wsinfo);
980 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
983 tios.c_cflag |= CRTSCTS;
984 else if (crtscts < 0)
985 tios.c_cflag &= ~CRTSCTS;
987 if (crtscts != 0 && !termiox_ok) {
988 error("Can't set RTS/CTS flow control");
989 } else if (crtscts > 0) {
990 tiox.x_hflag |= RTSXOFF|CTSXON;
991 } else if (crtscts < 0) {
992 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
996 tios.c_cflag |= CS8 | CREAD | HUPCL;
998 tios.c_cflag |= CLOCAL;
999 tios.c_iflag = IGNBRK | IGNPAR;
1002 tios.c_cc[VMIN] = 1;
1003 tios.c_cc[VTIME] = 0;
1005 if (crtscts == -2) {
1006 tios.c_iflag |= IXON | IXOFF;
1007 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1008 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1011 speed = translate_speed(inspeed);
1013 cfsetospeed(&tios, speed);
1014 cfsetispeed(&tios, speed);
1016 speed = cfgetospeed(&tios);
1018 * We can't proceed if the serial port speed is 0,
1019 * since that implies that the serial port is disabled.
1021 if ((speed == B0) && !sync_serial)
1022 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1025 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1026 fatal("tcsetattr: %m");
1029 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1030 error("TCSETXF: %m");
1034 baud_rate = inspeed = baud_rate_of(speed);
1040 * restore_tty - restore the terminal to the saved settings.
1047 if (!default_device) {
1049 * Turn off echoing, because otherwise we can get into
1050 * a loop with the tty and the modem echoing to each other.
1051 * We presume we are the sole user of this tty device, so
1052 * when we close it, it will revert to its defaults anyway.
1054 inittermios.c_lflag &= ~(ECHO | ECHONL);
1056 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1057 if (!hungup && errno != ENXIO)
1058 warn("tcsetattr: %m");
1060 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1061 if (!hungup && errno != ENXIO)
1062 error("TCSETXF: %m");
1066 ioctl(fd, TIOCSWINSZ, &wsinfo);
1072 * setdtr - control the DTR line on the serial port.
1073 * This is called from die(), so it shouldn't call die().
1079 int modembits = TIOCM_DTR;
1081 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1085 * open_loopback - open the device we use for getting packets
1086 * in demand mode. Under Solaris 2, we use our existing fd
1087 * to the ppp driver.
1096 * output - Output PPP packet.
1099 output(unit, p, len)
1109 dbglog("sent %P", p, len);
1112 data.buf = (caddr_t) p;
1114 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1115 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1117 error("Couldn't send packet: %m");
1121 pfd.events = POLLOUT;
1122 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1128 * wait_input - wait until there is data available,
1129 * for the length of time specified by *timo (indefinite
1134 struct timeval *timo;
1138 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1139 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1144 * add_fd - add an fd to the set that wait_input waits for.
1151 for (n = 0; n < n_pollfds; ++n)
1152 if (pollfds[n].fd == fd)
1154 if (n_pollfds < MAX_POLLFDS) {
1155 pollfds[n_pollfds].fd = fd;
1156 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1159 error("Too many inputs!");
1163 * remove_fd - remove an fd from the set that wait_input waits for.
1170 for (n = 0; n < n_pollfds; ++n) {
1171 if (pollfds[n].fd == fd) {
1172 while (++n < n_pollfds)
1173 pollfds[n-1] = pollfds[n];
1182 * wait_loop_output - wait until there is data available on the
1183 * loopback, for the length of time specified by *timo (indefinite
1187 wait_loop_output(timo)
1188 struct timeval *timo;
1194 * wait_time - wait for a given length of time or until a
1195 * signal is received.
1199 struct timeval *timo;
1203 n = select(0, NULL, NULL, NULL, timo);
1204 if (n < 0 && errno != EINTR)
1205 fatal("select: %m");
1211 * read_packet - get a PPP packet from the serial device.
1217 struct strbuf ctrl, data;
1219 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1222 data.maxlen = PPP_MRU + PPP_HDRLEN;
1223 data.buf = (caddr_t) buf;
1224 ctrl.maxlen = sizeof(ctrlbuf);
1225 ctrl.buf = (caddr_t) ctrlbuf;
1227 len = getmsg(pppfd, &ctrl, &data, &flags);
1229 if (errno == EAGAIN || errno == EINTR)
1231 fatal("Error reading packet: %m");
1238 * Got a M_PROTO or M_PCPROTO message. Interpret it
1239 * as a DLPI primitive??
1242 dbglog("got dlpi prim 0x%x, len=%d",
1243 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1249 * get_loop_output - get outgoing packets from the ppp device,
1250 * and detect when we want to bring the real link up.
1251 * Return value is 1 if we need to bring up the link, 0 otherwise.
1259 while ((len = read_packet(inpacket_buf)) > 0) {
1260 if (loop_frame(inpacket_buf, len))
1267 * ppp_send_config - configure the transmit characteristics of
1268 * the ppp interface.
1271 ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
1278 #if defined(INET6) && defined(SOL2)
1281 #endif /* defined(INET6) && defined(SOL2) */
1284 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1285 if (hungup && errno == ENXIO)
1287 error("Couldn't set MTU: %m");
1291 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1292 error("Couldn't set transmit ACCM: %m");
1295 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1296 cf[1] = COMP_PROT | COMP_AC;
1297 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1298 error("Couldn't set prot/AC compression: %m");
1302 /* set the MTU for IP as well */
1303 memset(&ifr, 0, sizeof(ifr));
1304 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1305 ifr.ifr_metric = link_mtu;
1306 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1307 error("Couldn't set IP MTU: %m");
1310 #if defined(INET6) && defined(SOL2)
1311 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1313 error("Couldn't open IPv6 socket: %m");
1315 memset(&lifr, 0, sizeof(lifr));
1316 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1317 lifr.lifr_mtu = link_mtu;
1318 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1320 error("Couldn't set IPv6 MTU: %m");
1323 #endif /* defined(INET6) && defined(SOL2) */
1327 * ppp_set_xaccm - set the extended transmit ACCM for the interface.
1330 ppp_set_xaccm(unit, accm)
1338 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1339 if (!hungup || errno != ENXIO)
1340 warn("Couldn't set extended ACCM: %m");
1345 * ppp_recv_config - configure the receive-side characteristics of
1346 * the ppp interface.
1349 ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
1357 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1358 if (hungup && errno == ENXIO)
1360 error("Couldn't set MRU: %m");
1364 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1365 error("Couldn't set receive ACCM: %m");
1368 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1369 cf[1] = DECOMP_PROT | DECOMP_AC;
1370 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1371 error("Couldn't set prot/AC decompression: %m");
1377 * ccp_test - ask kernel whether a given compression method
1378 * is acceptable for use.
1381 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1382 int unit, opt_len, for_transmit;
1385 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1386 opt_ptr, opt_len, 0) >= 0)
1388 return (errno == ENOSR)? 0: -1;
1392 * ccp_flags_set - inform kernel about the current state of CCP.
1395 ccp_flags_set(unit, isopen, isup)
1396 int unit, isopen, isup;
1400 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1401 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1402 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1403 if (!hungup || errno != ENXIO)
1404 error("Couldn't set kernel CCP state: %m");
1409 * get_idle_time - return how long the link has been idle.
1412 get_idle_time(u, ip)
1414 struct ppp_idle *ip;
1416 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1420 * get_ppp_stats - return statistics for the link.
1423 get_ppp_stats(u, stats)
1425 struct pppd_stats *stats;
1430 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1431 error("Couldn't get link statistics: %m");
1434 stats->bytes_in = s.p.ppp_ibytes;
1435 stats->bytes_out = s.p.ppp_obytes;
1441 * set_filters - transfer the pass and active filters to the kernel.
1444 set_filters(pass, active)
1445 struct bpf_program *pass, *active;
1449 if (pass->bf_len > 0) {
1450 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1451 sizeof(struct bpf_program), 0) < 0) {
1452 error("Couldn't set pass-filter in kernel: %m");
1456 if (active->bf_len > 0) {
1457 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1458 sizeof(struct bpf_program), 0) < 0) {
1459 error("Couldn't set active-filter in kernel: %m");
1468 * ccp_fatal_error - returns 1 if decompression was disabled as a
1469 * result of an error detected after decompression of a packet,
1470 * 0 otherwise. This is necessary because of patent nonsense.
1473 ccp_fatal_error(unit)
1479 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1480 if (errno != ENXIO && errno != EINVAL)
1481 error("Couldn't get compression flags: %m");
1484 return cf[0] & CCP_FATALERROR;
1488 * sifvjcomp - config tcp header compression
1491 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1492 int u, vjcomp, xcidcomp, xmaxcid;
1498 maxcid[0] = xcidcomp;
1499 maxcid[1] = 15; /* XXX should be rmaxcid */
1500 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1501 error("Couldn't initialize VJ compression: %m");
1505 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1506 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1507 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1508 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1510 error("Couldn't enable VJ compression: %m");
1517 * sifup - Config the interface up and enable IP packets to pass.
1525 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1526 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1527 error("Couldn't mark interface up (get): %m");
1530 ifr.ifr_flags |= IFF_UP;
1531 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1532 error("Couldn't mark interface up (set): %m");
1540 * sifdown - Config the interface down and disable IP.
1550 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1551 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1552 error("Couldn't mark interface down (get): %m");
1555 ifr.ifr_flags &= ~IFF_UP;
1556 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1557 error("Couldn't mark interface down (set): %m");
1565 * sifnpmode - Set the mode for handling packets for a given NP.
1568 sifnpmode(u, proto, mode)
1576 npi[1] = (int) mode;
1577 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1578 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1584 #if defined(SOL2) && defined(INET6)
1586 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1595 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1600 memset(&lifr, 0, sizeof(lifr));
1601 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1602 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1607 lifr.lifr_flags |= IFF_UP;
1608 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1609 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1620 * sifdown - Config the IPv6 interface down and disable IPv6.
1629 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1633 memset(&lifr, 0, sizeof(lifr));
1634 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1635 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1640 lifr.lifr_flags &= ~IFF_UP;
1641 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1642 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1653 * sif6addr - Config the interface with an IPv6 link-local address
1661 struct sockaddr_storage laddr;
1662 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1665 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1669 memset(&lifr, 0, sizeof(lifr));
1670 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1673 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1674 * zero values, hence the interface token came to be zero too,
1675 * and without this, in.ndpd will complain
1677 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1678 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1684 * Set the interface address and destination address
1686 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1687 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1692 memset(&lifr, 0, sizeof(lifr));
1693 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1694 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1695 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1704 * cif6addr - Remove the IPv6 address from interface
1714 #endif /* defined(SOL2) && defined(INET6) */
1717 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1720 * sifaddr - Config the interface IP addresses and netmask.
1730 memset(&ifr, 0, sizeof(ifr));
1731 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1732 ifr.ifr_addr.sa_family = AF_INET;
1733 INET_ADDR(ifr.ifr_addr) = m;
1734 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1735 error("Couldn't set IP netmask: %m");
1738 ifr.ifr_addr.sa_family = AF_INET;
1739 INET_ADDR(ifr.ifr_addr) = o;
1740 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1741 error("Couldn't set local IP address: %m");
1746 * On some systems, we have to explicitly set the point-to-point
1747 * flag bit before we can set a destination address.
1749 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1750 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1751 ifr.ifr_flags |= IFF_POINTOPOINT;
1752 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1753 error("Couldn't mark interface pt-to-pt: %m");
1757 ifr.ifr_dstaddr.sa_family = AF_INET;
1758 INET_ADDR(ifr.ifr_dstaddr) = h;
1759 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
1760 error("Couldn't set remote IP address: %m");
1763 #if 0 /* now done in ppp_send_config */
1764 ifr.ifr_metric = link_mtu;
1765 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1766 error("Couldn't set IP MTU: %m");
1775 * cifaddr - Clear the interface IP addresses, and delete routes
1776 * through the interface if possible.
1783 #if defined(__USLC__) /* was: #if 0 */
1784 cifroute(unit, ouraddr, hisaddr);
1786 notice("Removing ppp interface unit");
1787 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
1788 error("Can't remove ppp interface unit: %m");
1799 * sifdefaultroute - assign a default route through the address given.
1802 sifdefaultroute(u, l, g)
1808 #if defined(__USLC__)
1809 g = l; /* use the local address as gateway */
1811 memset(&rt, 0, sizeof(rt));
1812 rt.rt_dst.sa_family = AF_INET;
1813 INET_ADDR(rt.rt_dst) = 0;
1814 rt.rt_gateway.sa_family = AF_INET;
1815 INET_ADDR(rt.rt_gateway) = g;
1816 rt.rt_flags = RTF_GATEWAY;
1818 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
1819 error("Can't add default route: %m");
1823 default_route_gateway = g;
1828 * cifdefaultroute - delete a default route through the address given.
1831 cifdefaultroute(u, l, g)
1837 #if defined(__USLC__)
1838 g = l; /* use the local address as gateway */
1840 memset(&rt, 0, sizeof(rt));
1841 rt.rt_dst.sa_family = AF_INET;
1842 INET_ADDR(rt.rt_dst) = 0;
1843 rt.rt_gateway.sa_family = AF_INET;
1844 INET_ADDR(rt.rt_gateway) = g;
1845 rt.rt_flags = RTF_GATEWAY;
1847 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
1848 error("Can't delete default route: %m");
1852 default_route_gateway = 0;
1857 * sifproxyarp - Make a proxy ARP entry for the peer.
1860 sifproxyarp(unit, hisaddr)
1864 struct arpreq arpreq;
1866 memset(&arpreq, 0, sizeof(arpreq));
1867 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
1870 arpreq.arp_pa.sa_family = AF_INET;
1871 INET_ADDR(arpreq.arp_pa) = hisaddr;
1872 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
1873 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
1874 error("Couldn't set proxy ARP entry: %m");
1878 proxy_arp_addr = hisaddr;
1883 * cifproxyarp - Delete the proxy ARP entry for the peer.
1886 cifproxyarp(unit, hisaddr)
1890 struct arpreq arpreq;
1892 memset(&arpreq, 0, sizeof(arpreq));
1893 arpreq.arp_pa.sa_family = AF_INET;
1894 INET_ADDR(arpreq.arp_pa) = hisaddr;
1895 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
1896 error("Couldn't delete proxy ARP entry: %m");
1905 * get_ether_addr - get the hardware address of an interface on the
1906 * the same subnet as ipaddr.
1911 get_ether_addr(ipaddr, hwaddr)
1913 struct sockaddr *hwaddr;
1915 struct ifreq *ifr, *ifend, ifreq;
1918 u_int32_t ina, mask;
1921 * Scan through the system's network interfaces.
1924 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
1927 ifc.ifc_len = nif * sizeof(struct ifreq);
1928 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
1929 if (ifc.ifc_buf == 0)
1931 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
1932 warn("Couldn't get system interface list: %m");
1936 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
1937 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
1938 if (ifr->ifr_addr.sa_family != AF_INET)
1941 * Check that the interface is up, and not point-to-point or loopback.
1943 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
1944 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
1946 if ((ifreq.ifr_flags &
1947 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
1948 != (IFF_UP|IFF_BROADCAST))
1951 * Get its netmask and check that it's on the right subnet.
1953 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
1955 ina = INET_ADDR(ifr->ifr_addr);
1956 mask = INET_ADDR(ifreq.ifr_addr);
1957 if ((ipaddr & mask) == (ina & mask))
1962 warn("No suitable interface found for proxy ARP");
1967 info("found interface %s for proxy ARP", ifr->ifr_name);
1968 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
1969 error("Couldn't get hardware address for %s", ifr->ifr_name);
1979 * get_hw_addr_dlpi - obtain the hardware address using DLPI
1982 get_hw_addr_dlpi(name, hwaddr)
1984 struct sockaddr *hwaddr;
1987 int unit, iffd, adrlen;
1988 unsigned char *adrp;
1991 union DL_primitives prim;
1996 * We have to open the device and ask it for its hardware address.
1997 * First split apart the device name and unit.
1999 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2000 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2007 * Open the device and do a DLPI attach and phys_addr_req.
2009 iffd = open(ifdev, O_RDWR);
2011 error("Can't open %s: %m", ifdev);
2014 if (dlpi_attach(iffd, unit) < 0
2015 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2016 || dlpi_info_req(iffd) < 0
2017 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2022 adrlen = reply.prim.info_ack.dl_addr_length;
2023 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2025 #if DL_CURRENT_VERSION >= 2
2026 if (reply.prim.info_ack.dl_sap_length < 0)
2027 adrlen += reply.prim.info_ack.dl_sap_length;
2029 adrp += reply.prim.info_ack.dl_sap_length;
2032 hwaddr->sa_family = AF_UNSPEC;
2033 memcpy(hwaddr->sa_data, adrp, adrlen);
2038 * get_hw_addr - obtain the hardware address for a named interface.
2041 get_hw_addr(name, ina, hwaddr)
2044 struct sockaddr *hwaddr;
2046 /* New way - get the address by doing an arp request. */
2050 s = socket(AF_INET, SOCK_DGRAM, 0);
2053 memset(&req, 0, sizeof(req));
2054 req.arp_pa.sa_family = AF_INET;
2055 INET_ADDR(req.arp_pa) = ina;
2056 if (ioctl(s, SIOCGARP, &req) < 0) {
2057 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2060 *hwaddr = req.arp_ha;
2061 hwaddr->sa_family = AF_UNSPEC;
2067 dlpi_attach(fd, ppa)
2070 dl_attach_req_t req;
2073 req.dl_primitive = DL_ATTACH_REQ;
2075 buf.len = sizeof(req);
2076 buf.buf = (void *) &req;
2077 return putmsg(fd, &buf, NULL, RS_HIPRI);
2087 req.dl_primitive = DL_INFO_REQ;
2088 buf.len = sizeof(req);
2089 buf.buf = (void *) &req;
2090 return putmsg(fd, &buf, NULL, RS_HIPRI);
2094 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2095 union DL_primitives *reply;
2096 int fd, expected_prim, maxlen;
2103 * Use poll to wait for a message with a timeout.
2106 pfd.events = POLLIN | POLLPRI;
2108 n = poll(&pfd, 1, 1000);
2109 } while (n == -1 && errno == EINTR);
2116 buf.maxlen = maxlen;
2117 buf.buf = (void *) reply;
2119 if (getmsg(fd, &buf, NULL, &flags) < 0)
2122 if (buf.len < sizeof(ulong)) {
2124 dbglog("dlpi response short (len=%d)\n", buf.len);
2128 if (reply->dl_primitive == expected_prim)
2132 if (reply->dl_primitive == DL_ERROR_ACK) {
2133 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2134 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2135 reply->error_ack.dl_error_primitive);
2137 dbglog("dlpi unexpected response prim %x\n",
2138 reply->dl_primitive);
2146 * Return user specified netmask, modified by any mask we might determine
2147 * for address `addr' (in network byte order).
2148 * Here we scan through the system's list of interfaces, looking for
2149 * any non-point-to-point interfaces which might appear to be on the same
2150 * network as `addr'. If we find any, we OR in their netmask to the
2151 * user-specified netmask.
2157 u_int32_t mask, nmask, ina;
2158 struct ifreq *ifr, *ifend, ifreq;
2163 if (IN_CLASSA(addr)) /* determine network mask for address class */
2164 nmask = IN_CLASSA_NET;
2165 else if (IN_CLASSB(addr))
2166 nmask = IN_CLASSB_NET;
2168 nmask = IN_CLASSC_NET;
2169 /* class D nets are disallowed by bad_ip_adrs */
2170 mask = netmask | htonl(nmask);
2173 * Scan through the system's network interfaces.
2176 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2179 ifc.ifc_len = nif * sizeof(struct ifreq);
2180 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2181 if (ifc.ifc_buf == 0)
2183 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2184 warn("Couldn't get system interface list: %m");
2188 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2189 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2191 * Check the interface's internet address.
2193 if (ifr->ifr_addr.sa_family != AF_INET)
2195 ina = INET_ADDR(ifr->ifr_addr);
2196 if ((ntohl(ina) & nmask) != (addr & nmask))
2199 * Check that the interface is up, and not point-to-point or loopback.
2201 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2202 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2204 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2208 * Get its netmask and OR it into our mask.
2210 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2212 mask |= INET_ADDR(ifreq.ifr_addr);
2220 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2223 logwtmp(line, name, host)
2224 const char *line, *name, *host;
2226 static struct utmpx utmpx;
2230 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2231 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2232 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2233 utmpx.ut_pid = getpid();
2234 utmpx.ut_type = USER_PROCESS;
2236 utmpx.ut_type = DEAD_PROCESS;
2238 gettimeofday(&utmpx.ut_tv, NULL);
2239 updwtmpx("/var/adm/wtmpx", &utmpx);
2243 * get_host_seed - return the serial number of this machine.
2250 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2251 error("sysinfo: %m");
2254 return (int) strtoul(buf, NULL, 16);
2258 strioctl(fd, cmd, ptr, ilen, olen)
2259 int fd, cmd, ilen, olen;
2262 struct strioctl str;
2268 if (ioctl(fd, I_STR, &str) == -1)
2270 if (str.ic_len != olen)
2271 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2272 olen, str.ic_len, cmd);
2278 * lock - create a lock file for the named lock device
2281 #define LOCK_PREFIX "/var/spool/locks/LK."
2282 static char lock_file[40]; /* name of lock file created */
2292 if (stat(dev, &sbuf) < 0) {
2293 error("Can't get device number for %s: %m", dev);
2296 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2297 error("Can't lock %s: not a character device", dev);
2300 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2301 LOCK_PREFIX, major(sbuf.st_dev),
2302 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2304 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2306 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2307 /* Read the lock file to find out who has the device locked */
2308 n = read(fd, ascii_pid, 11);
2310 error("Can't read pid from lock file %s", lock_file);
2314 pid = atoi(ascii_pid);
2315 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2316 /* pid no longer exists - remove the lock file */
2317 if (unlink(lock_file) == 0) {
2319 notice("Removed stale lock on %s (pid %d)",
2323 warn("Couldn't remove stale lock on %s",
2326 notice("Device %s is locked by pid %d",
2331 error("Can't create lock file %s: %m", lock_file);
2336 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2337 write(fd, ascii_pid, 11);
2344 * unlock - remove our lockfile
2357 * cifroute - delete a route through the addresses given.
2360 cifroute(u, our, his)
2366 memset(&rt, 0, sizeof(rt));
2367 rt.rt_dst.sa_family = AF_INET;
2368 INET_ADDR(rt.rt_dst) = his;
2369 rt.rt_gateway.sa_family = AF_INET;
2370 INET_ADDR(rt.rt_gateway) = our;
2371 rt.rt_flags = RTF_HOST;
2373 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2374 error("Can't delete route: %m");
2382 * have_route_to - determine if the system has a route to the specified
2383 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2384 * `addr' is in network byte order.
2385 * For demand mode to work properly, we have to ignore routes
2386 * through our own interface.
2388 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2389 #define T_CURRENT MI_T_CURRENT
2397 int fd, r, flags, i;
2399 struct T_optmgmt_req req;
2403 struct T_optmgmt_ack ack;
2404 unsigned char space[64];
2407 struct strbuf cbuf, dbuf;
2409 mib2_ipRouteEntry_t routes[8];
2410 mib2_ipRouteEntry_t *rp;
2412 fd = open(mux_dev_name, O_RDWR);
2414 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2418 req.req.PRIM_type = T_OPTMGMT_REQ;
2419 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2420 req.req.OPT_length = sizeof(req.hdr);
2421 req.req.MGMT_flags = T_CURRENT;
2423 req.hdr.level = MIB2_IP;
2427 cbuf.buf = (char *) &req;
2428 cbuf.len = sizeof(req);
2430 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2431 warn("have_route_to: putmsg: %m");
2437 cbuf.buf = (char *) &ack;
2438 cbuf.maxlen = sizeof(ack);
2439 dbuf.buf = (char *) routes;
2440 dbuf.maxlen = sizeof(routes);
2442 r = getmsg(fd, &cbuf, &dbuf, &flags);
2444 warn("have_route_to: getmsg: %m");
2449 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2450 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2451 || ack.ack.MGMT_flags != T_SUCCESS
2452 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2453 dbglog("have_route_to: bad message len=%d prim=%d",
2454 cbuf.len, ack.ack.PRIM_type);
2459 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2460 if (rh->level == 0 && rh->name == 0)
2462 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2463 while (r == MOREDATA)
2464 r = getmsg(fd, NULL, &dbuf, &flags);
2469 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2470 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2471 if (rp->ipRouteMask != ~0) {
2472 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2473 rp->ipRouteDest, rp->ipRouteNextHop,
2475 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2476 && rp->ipRouteNextHop != remote_addr)
2482 r = getmsg(fd, NULL, &dbuf, &flags);
2493 * get_pty - get a pty master/slave pair and chown the slave side to
2494 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2497 get_pty(master_fdp, slave_fdp, slave_name, uid)
2505 struct termios tios;
2507 mfd = open("/dev/ptmx", O_RDWR);
2509 error("Couldn't open pty master: %m");
2513 pty_name = ptsname(mfd);
2514 if (pty_name == NULL) {
2515 error("Couldn't get name of pty slave");
2519 if (chown(pty_name, uid, -1) < 0)
2520 warn("Couldn't change owner of pty slave: %m");
2521 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2522 warn("Couldn't change permissions on pty slave: %m");
2523 if (unlockpt(mfd) < 0)
2524 warn("Couldn't unlock pty slave: %m");
2526 sfd = open(pty_name, O_RDWR);
2528 error("Couldn't open pty slave %s: %m", pty_name);
2532 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2533 warn("Couldn't push ptem module on pty slave: %m");
2535 dbglog("Using %s", pty_name);
2536 strlcpy(slave_name, pty_name, MAXPATHLEN);