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 1.37 1999/10/29 00:30:26 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;
101 static char *mux_dev_name;
103 static int fdmuxid = -1;
105 static int ipmuxid = -1;
107 #if defined(INET6) && defined(SOL2)
108 static int ip6fd; /* IP file descriptor */
109 static int ip6muxid = -1; /* Multiplexer file descriptor */
110 static int if6_is_up = 0; /* IPv6 interface has been marked up */
112 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
113 s->sin6_addr.s6_addr32[0] = htonl(as); \
114 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
115 s->sin6_family = AF_INET6; \
116 l.lifr_addr.ss_family = AF_INET6; \
117 l.lifr_addrlen = 10; \
118 l.lifr_addr = laddr; \
121 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
122 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
124 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
125 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
127 #endif /* defined(INET6) && defined(SOL2) */
129 static int restore_term;
130 static struct termios inittermios;
132 static struct termiox inittermiox;
133 static int termiox_ok;
135 static struct winsize wsinfo; /* Initial window size info */
136 static pid_t tty_sid; /* original session ID for terminal */
138 extern u_char inpacket_buf[]; /* borrowed from main.c */
140 #define MAX_POLLFDS 32
141 static struct pollfd pollfds[MAX_POLLFDS];
142 static int n_pollfds;
144 static int link_mtu, link_mru;
147 static int tty_nmodules;
148 static char tty_modules[NMODULES][FMNAMESZ+1];
149 static int tty_npushed;
151 static int if_is_up; /* Interface has been marked up */
152 static u_int32_t remote_addr; /* IP address of peer */
153 static u_int32_t default_route_gateway; /* Gateway for default route added */
154 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
156 /* Prototypes for procedures local to this file. */
157 static int translate_speed __P((int));
158 static int baud_rate_of __P((int));
159 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
160 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
161 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
162 static int dlpi_attach __P((int, int));
163 static int dlpi_info_req __P((int));
164 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
165 static int strioctl __P((int, int, void *, int, int));
169 * sifppa - Sets interface ppa
171 * without setting the ppa, ip module will return EINVAL upon setting the
172 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
173 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
174 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
175 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
176 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
177 * is required because the ppp DLPI provider advertises itself as
178 * a DLPI style 2 type, which requires a point of attachment to be
179 * specified. The only way the user can specify a point of attachment
180 * is via SIOCSLIFNAME or IF_UNITSEL.
182 * Such changes in the behavior of ip module was made to meet new or
183 * evolving standards requirements.
191 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
195 #if defined(SOL2) && defined(INET6)
197 * slifname - Sets interface ppa and flags
199 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
200 * be set in order to declare this as an IPv6 interface
210 memset(&lifr, 0, sizeof(lifr));
211 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
215 lifr.lifr_flags |= IFF_IPV6;
216 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
218 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
220 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
229 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
231 * walks the list of valid ethernet interfaces, and convert the first
232 * found 48-bit MAC address into EUI 64. caller also assumes that
233 * the system has a properly configured Ethernet interface for this
234 * function to return non-zero.
237 ether_to_eui64(eui64_t *p_eui64)
241 struct lifreq *plifreq;
243 int fd, num_ifs, i, found;
246 struct sockaddr s_eth_addr;
247 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
249 fd = socket(AF_INET, SOCK_DGRAM, 0);
255 * Find out how many interfaces are running
257 lifn.lifn_family = AF_UNSPEC;
258 lifn.lifn_flags = LIFC_NOXMIT;
259 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
261 error("could not determine number of interfaces: %m");
265 num_ifs = lifn.lifn_count;
266 req_size = num_ifs * sizeof(struct lifreq);
267 req = malloc(req_size);
270 error("out of memory");
275 * Get interface configuration info for all interfaces
277 lifc.lifc_family = AF_UNSPEC;
278 lifc.lifc_flags = LIFC_NOXMIT;
279 lifc.lifc_len = req_size;
281 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
284 error("SIOCGLIFCONF: %m");
289 * And traverse each interface to look specifically for the first
290 * occurence of an Ethernet interface which has been marked up
292 plifreq = lifc.lifc_req;
294 for (i = lifc.lifc_len / sizeof(struct lifreq); i>0; i--, plifreq++) {
296 if (strchr(plifreq->lifr_name, ':') != NULL)
299 memset(&lifr, 0, sizeof(lifr));
300 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
301 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
304 error("SIOCGLIFFLAGS: %m");
307 fl = lifr.lifr_flags;
309 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
310 != (IFF_UP | IFF_BROADCAST))
320 error("no persistent id can be found");
325 * Send DL_INFO_REQ to the driver to solicit its MAC address
327 if (!get_hw_addr_dlpi(plifreq->lifr_name, &s_eth_addr)) {
328 error("could not obtain hardware address for %s", plifreq->lifr_name);
333 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
335 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
336 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
337 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
338 p_eui64->e8[3] = 0xFF;
339 p_eui64->e8[4] = 0xFE;
340 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
341 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
342 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
346 #endif /* defined(SOL2) && defined(INET6) */
349 * sys_init - System-dependent initialization.
356 #if defined(INET6) && defined(SOL2)
359 #endif /* defined(INET6) && defined(SOL2) */
362 union DL_primitives prim;
365 #endif /* !defined(SOL2) */
369 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
370 * under. It is used in place of "/dev/ip" since STREAMS will not let
371 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
372 * driver at the bottom of the tunneling interfaces stream.
374 mux_dev_name = UDP_DEV_NAME;
376 mux_dev_name = IP_DEV_NAME;
379 ipfd = open(mux_dev_name, O_RDWR, 0);
381 fatal("Couldn't open IP device: %m");
383 #if defined(INET6) && defined(SOL2)
384 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
386 fatal("Couldn't open IP device (2): %m");
387 #endif /* defined(INET6) && defined(SOL2) */
389 if (default_device && !notty)
390 tty_sid = getsid((pid_t)0);
392 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
394 fatal("Can't open %s: %m", PPP_DEV_NAME);
395 if (kdebugflag & 1) {
396 x = PPPDBG_LOG + PPPDBG_DRIVER;
397 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
400 /* Assign a new PPA and get its unit number. */
401 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
402 fatal("Can't create new PPP interface: %m");
406 * Since sys_init() is called prior to ifname being set in main(),
407 * we need to get the ifname now, otherwise slifname(), and others,
408 * will fail, or maybe, I should move them to a later point ?
409 * <adi.masputra@sun.com>
411 sprintf(ifname, "ppp%d", ifunit);
412 #endif /* defined(SOL2) */
414 * Open the ppp device again and link it under the ip multiplexor.
415 * IP will assign a unit number which hopefully is the same as ifunit.
416 * I don't know any way to be certain they will be the same. :-(
418 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
420 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
421 if (kdebugflag & 1) {
422 x = PPPDBG_LOG + PPPDBG_DRIVER;
423 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
426 #if defined(INET6) && defined(SOL2)
427 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
430 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
432 if (kdebugflag & 1) {
433 x = PPPDBG_LOG + PPPDBG_DRIVER;
434 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
436 #endif /* defined(INET6) && defined(SOL2) */
439 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
443 #endif /* defined(INET6) */
444 fatal("Can't push IP module: %m");
448 * Assign ppa according to the unit number returned by ppp device
449 * after plumbing is completed above.
451 if (sifppa(ifd, ifunit) < 0) {
455 #endif /* defined(INET6) */
456 fatal("Can't set ppa for unit %d: %m", ifunit);
461 * An IPv6 interface is created anyway, even when the user does not
462 * explicitly enable it. Note that the interface will be marked
463 * IPv6 during slifname().
465 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
468 fatal("Can't push IP module (2): %m");
472 * Assign ppa according to the unit number returned by ppp device
473 * after plumbing is completed above. In addition, mark the interface
474 * as an IPv6 interface.
476 if (slifname(i6fd, ifunit) < 0) {
479 fatal("Can't set ifname for unit %d: %m", ifunit);
481 #endif /* defined(INET6) */
483 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
488 #endif /* defined(INET6) */
489 fatal("Can't I_PLINK PPP device to IP: %m");
492 memset(&ifr, 0, sizeof(ifr));
493 sprintf(ifr.ifr_name, "%s", ifname);
494 ifr.ifr_ip_muxid = ipmuxid;
497 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
498 * This is so that an arbitrary module can be inserted, or deleted,
499 * between ip module and the device driver without tearing down the
500 * existing stream. Such feature requires the mux ids, which is set
501 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
503 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
504 ioctl(ipfd, I_PUNLINK, ipmuxid);
507 #endif /* defined(INET6) */
508 fatal("SIOCSIFMUXID: %m");
511 #else /* else if !defined(SOL2) */
513 if (dlpi_attach(ifd, ifunit) < 0 ||
514 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
516 fatal("Can't attach to ppp%d: %m", ifunit);
519 ipmuxid = ioctl(ipfd, I_LINK, ifd);
522 fatal("Can't link PPP device to IP: %m");
523 #endif /* defined(SOL2) */
525 #if defined(INET6) && defined(SOL2)
526 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
529 ioctl(ipfd, I_PUNLINK, ipmuxid);
530 fatal("Can't I_PLINK PPP device to IP (2): %m");
533 memset(&lifr, 0, sizeof(lifr));
534 sprintf(lifr.lifr_name, "%s", ifname);
535 lifr.lifr_ip_muxid = ip6muxid;
538 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
540 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
541 ioctl(ipfd, I_PUNLINK, ipmuxid);
542 ioctl(ip6fd, I_PUNLINK, ip6muxid);
543 fatal("Can't link PPP device to IP (2): %m");
545 #endif /* defined(INET6) && defined(SOL2) */
548 /* Set the interface name for the link. */
549 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "ppp%d", ifunit);
550 ifr.ifr_metric = ipmuxid;
551 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
552 fatal("Can't set interface name %s: %m", ifr.ifr_name);
553 #endif /* !defined(SOL2) */
559 * sys_cleanup - restore any system state we modified before exiting:
560 * mark the interface down, delete default route and/or proxy arp entry.
561 * This should call die() because it's called from die().
570 #endif /* defined(INET6) */
571 #endif /* defined(SOL2) */
573 #if defined(SOL2) && defined(INET6)
576 #endif /* defined(SOL2) && defined(INET6) */
579 if (default_route_gateway)
580 cifdefaultroute(0, default_route_gateway, default_route_gateway);
582 cifproxyarp(0, proxy_arp_addr);
585 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
586 * unlink and re-link the modules, causing the muxid to change.
588 memset(&ifr, 0, sizeof(ifr));
589 sprintf(ifr.ifr_name, "%s", ifname);
590 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
591 error("SIOCGIFFLAGS: %m");
595 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
596 error("SIOCGIFMUXID: %m");
600 ipmuxid = ifr.ifr_ip_muxid;
602 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
603 error("Can't I_PUNLINK PPP from IP: %m");
608 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
609 * unlink and re-link the modules, causing the muxid to change.
611 memset(&lifr, 0, sizeof(lifr));
612 sprintf(lifr.lifr_name, "%s", ifname);
613 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
614 error("SIOCGLIFFLAGS: %m");
618 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
619 error("SIOCGLIFMUXID: %m");
623 ip6muxid = lifr.lifr_ip_muxid;
625 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
626 error("Can't I_PUNLINK PPP from IP (2): %m");
628 #endif /* defined(INET6) */
629 #endif /* defined(SOL2) */
633 * sys_close - Clean up in a child process before execing.
639 #if defined(INET6) && defined(SOL2)
641 #endif /* defined(INET6) && defined(SOL2) */
647 * sys_check_options - check the options that the user specified
657 * daemon - Detach us from controlling terminal session.
660 daemon(nochdir, noclose)
661 int nochdir, noclose;
665 if ((pid = fork()) < 0)
668 exit(0); /* parent dies */
673 fclose(stdin); /* don't need stdin, stdout, stderr */
682 * ppp_available - check whether the system has any ppp interfaces
689 return stat(PPP_DEV_NAME, &buf) >= 0;
693 * establish_ppp - Turn the serial port into a ppp interface.
701 /* Pop any existing modules off the tty stream. */
703 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
704 || strcmp(tty_modules[i], "ptem") == 0
705 || ioctl(fd, I_POP, 0) < 0)
709 /* Push the async hdlc module and the compressor module. */
713 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
714 error("Couldn't push PPP Async HDLC module: %m");
719 if (kdebugflag & 4) {
720 i = PPPDBG_LOG + PPPDBG_AHDLC;
721 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
723 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
724 error("Couldn't push PPP compression module: %m");
727 if (kdebugflag & 2) {
728 i = PPPDBG_LOG + PPPDBG_COMP;
729 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
732 /* Link the serial port under the PPP multiplexor. */
733 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
734 error("Can't link tty to PPP mux: %m");
742 * restore_loop - reattach the ppp unit to the loopback.
743 * This doesn't need to do anything because disestablish_ppp does it.
751 * disestablish_ppp - Restore the serial port to normal operation.
752 * It attempts to reconstruct the stream with the previously popped
753 * modules. This shouldn't call die() because it's called from die().
762 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
764 error("Can't unlink tty from PPP mux: %m");
769 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
771 for (i = tty_nmodules - 1; i >= 0; --i)
772 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
773 error("Couldn't restore tty module %s: %m",
776 if (hungup && default_device && tty_sid > 0) {
778 * If we have received a hangup, we need to send a SIGHUP
779 * to the terminal's controlling process. The reason is
780 * that the original stream head for the terminal hasn't
781 * seen the M_HANGUP message (it went up through the ppp
782 * driver to the stream head for our fd to /dev/ppp).
784 kill(tty_sid, SIGHUP);
790 * Check whether the link seems not to be 8-bit clean.
798 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
803 s = "bit 7 set to 1";
806 s = "bit 7 set to 0";
816 warn("Serial link is not 8-bit clean:");
817 warn("All received characters had %s", s);
822 * List of valid speeds.
825 int speed_int, speed_val;
912 * Translate from bits/second to a speed_t.
918 struct speed *speedp;
922 for (speedp = speeds; speedp->speed_int; speedp++)
923 if (bps == speedp->speed_int)
924 return speedp->speed_val;
925 warn("speed %d not supported", bps);
930 * Translate from a speed_t to bits/second.
936 struct speed *speedp;
940 for (speedp = speeds; speedp->speed_int; speedp++)
941 if (speed == speedp->speed_val)
942 return speedp->speed_int;
947 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
948 * at the requested speed, etc. If `local' is true, set CLOCAL
949 * regardless of whether the modem option was specified.
952 set_up_tty(fd, local)
957 #if !defined (CRTSCTS)
961 if (!sync_serial && tcgetattr(fd, &tios) < 0)
962 fatal("tcgetattr: %m");
966 if (ioctl (fd, TCGETX, &tiox) < 0) {
978 ioctl(fd, TIOCGWINSZ, &wsinfo);
981 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
984 tios.c_cflag |= CRTSCTS;
985 else if (crtscts < 0)
986 tios.c_cflag &= ~CRTSCTS;
988 if (crtscts != 0 && !termiox_ok) {
989 error("Can't set RTS/CTS flow control");
990 } else if (crtscts > 0) {
991 tiox.x_hflag |= RTSXOFF|CTSXON;
992 } else if (crtscts < 0) {
993 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
997 tios.c_cflag |= CS8 | CREAD | HUPCL;
999 tios.c_cflag |= CLOCAL;
1000 tios.c_iflag = IGNBRK | IGNPAR;
1003 tios.c_cc[VMIN] = 1;
1004 tios.c_cc[VTIME] = 0;
1006 if (crtscts == -2) {
1007 tios.c_iflag |= IXON | IXOFF;
1008 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1009 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1012 speed = translate_speed(inspeed);
1014 cfsetospeed(&tios, speed);
1015 cfsetispeed(&tios, speed);
1017 speed = cfgetospeed(&tios);
1019 * We can't proceed if the serial port speed is 0,
1020 * since that implies that the serial port is disabled.
1023 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1026 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1027 fatal("tcsetattr: %m");
1030 if (termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1031 error("TCSETXF: %m");
1035 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 (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1057 if (!hungup && errno != ENXIO)
1058 warn("tcsetattr: %m");
1060 if (ioctl (fd, TCSETXF, &inittermiox) < 0){
1061 if (!hungup && errno != ENXIO)
1062 error("TCSETXF: %m");
1065 ioctl(fd, TIOCSWINSZ, &wsinfo);
1071 * setdtr - control the DTR line on the serial port.
1072 * This is called from die(), so it shouldn't call die().
1078 int modembits = TIOCM_DTR;
1080 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1084 * open_loopback - open the device we use for getting packets
1085 * in demand mode. Under Solaris 2, we use our existing fd
1086 * to the ppp driver.
1095 * output - Output PPP packet.
1098 output(unit, p, len)
1108 dbglog("sent %P", p, len);
1111 data.buf = (caddr_t) p;
1113 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1114 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1116 error("Couldn't send packet: %m");
1120 pfd.events = POLLOUT;
1121 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1127 * wait_input - wait until there is data available,
1128 * for the length of time specified by *timo (indefinite
1133 struct timeval *timo;
1137 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1138 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1143 * add_fd - add an fd to the set that wait_input waits for.
1150 for (n = 0; n < n_pollfds; ++n)
1151 if (pollfds[n].fd == fd)
1153 if (n_pollfds < MAX_POLLFDS) {
1154 pollfds[n_pollfds].fd = fd;
1155 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1158 error("Too many inputs!");
1162 * remove_fd - remove an fd from the set that wait_input waits for.
1169 for (n = 0; n < n_pollfds; ++n) {
1170 if (pollfds[n].fd == fd) {
1171 while (++n < n_pollfds)
1172 pollfds[n-1] = pollfds[n];
1181 * wait_loop_output - wait until there is data available on the
1182 * loopback, for the length of time specified by *timo (indefinite
1186 wait_loop_output(timo)
1187 struct timeval *timo;
1193 * wait_time - wait for a given length of time or until a
1194 * signal is received.
1198 struct timeval *timo;
1202 n = select(0, NULL, NULL, NULL, timo);
1203 if (n < 0 && errno != EINTR)
1204 fatal("select: %m");
1210 * read_packet - get a PPP packet from the serial device.
1216 struct strbuf ctrl, data;
1218 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1221 data.maxlen = PPP_MRU + PPP_HDRLEN;
1222 data.buf = (caddr_t) buf;
1223 ctrl.maxlen = sizeof(ctrlbuf);
1224 ctrl.buf = (caddr_t) ctrlbuf;
1226 len = getmsg(pppfd, &ctrl, &data, &flags);
1228 if (errno == EAGAIN || errno == EINTR)
1230 fatal("Error reading packet: %m");
1237 * Got a M_PROTO or M_PCPROTO message. Interpret it
1238 * as a DLPI primitive??
1241 dbglog("got dlpi prim 0x%x, len=%d",
1242 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1248 * get_loop_output - get outgoing packets from the ppp device,
1249 * and detect when we want to bring the real link up.
1250 * Return value is 1 if we need to bring up the link, 0 otherwise.
1258 while ((len = read_packet(inpacket_buf)) > 0) {
1259 if (loop_frame(inpacket_buf, len))
1266 * ppp_send_config - configure the transmit characteristics of
1267 * the ppp interface.
1270 ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
1277 #if defined(INET6) && defined(SOL2)
1280 #endif /* defined(INET6) && defined(SOL2) */
1283 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1284 if (hungup && errno == ENXIO)
1286 error("Couldn't set MTU: %m");
1289 /* can't set these if we don't have a stream attached below /dev/ppp */
1290 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1291 error("Couldn't set transmit ACCM: %m");
1293 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1294 cf[1] = COMP_PROT | COMP_AC;
1295 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1296 error("Couldn't set prot/AC compression: %m");
1300 /* set the MTU for IP as well */
1301 memset(&ifr, 0, sizeof(ifr));
1302 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1303 ifr.ifr_metric = link_mtu;
1304 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1305 error("Couldn't set IP MTU: %m");
1308 #if defined(INET6) && defined(SOL2)
1309 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1311 error("Couldn't open IPv6 socket: %m");
1313 memset(&lifr, 0, sizeof(lifr));
1314 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1315 lifr.lifr_mtu = link_mtu;
1316 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1318 error("Couldn't set IPv6 MTU: %m");
1321 #endif /* defined(INET6) && defined(SOL2) */
1325 * ppp_set_xaccm - set the extended transmit ACCM for the interface.
1328 ppp_set_xaccm(unit, accm)
1333 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1334 if (!hungup || errno != ENXIO)
1335 warn("Couldn't set extended ACCM: %m");
1340 * ppp_recv_config - configure the receive-side characteristics of
1341 * the ppp interface.
1344 ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
1352 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1353 if (hungup && errno == ENXIO)
1355 error("Couldn't set MRU: %m");
1358 /* can't set these if we don't have a stream attached below /dev/ppp */
1359 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1360 error("Couldn't set receive ACCM: %m");
1362 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1363 cf[1] = DECOMP_PROT | DECOMP_AC;
1364 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1365 error("Couldn't set prot/AC decompression: %m");
1371 * ccp_test - ask kernel whether a given compression method
1372 * is acceptable for use.
1375 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1376 int unit, opt_len, for_transmit;
1379 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1380 opt_ptr, opt_len, 0) >= 0)
1382 return (errno == ENOSR)? 0: -1;
1386 * ccp_flags_set - inform kernel about the current state of CCP.
1389 ccp_flags_set(unit, isopen, isup)
1390 int unit, isopen, isup;
1394 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1395 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1396 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1397 if (!hungup || errno != ENXIO)
1398 error("Couldn't set kernel CCP state: %m");
1403 * get_idle_time - return how long the link has been idle.
1406 get_idle_time(u, ip)
1408 struct ppp_idle *ip;
1410 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1414 * get_ppp_stats - return statistics for the link.
1417 get_ppp_stats(u, stats)
1419 struct pppd_stats *stats;
1423 if (strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1424 error("Couldn't get link statistics: %m");
1427 stats->bytes_in = s.p.ppp_ibytes;
1428 stats->bytes_out = s.p.ppp_obytes;
1434 * set_filters - transfer the pass and active filters to the kernel.
1437 set_filters(pass, active)
1438 struct bpf_program *pass, *active;
1442 if (pass->bf_len > 0) {
1443 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1444 sizeof(struct bpf_program), 0) < 0) {
1445 error("Couldn't set pass-filter in kernel: %m");
1449 if (active->bf_len > 0) {
1450 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1451 sizeof(struct bpf_program), 0) < 0) {
1452 error("Couldn't set active-filter in kernel: %m");
1461 * ccp_fatal_error - returns 1 if decompression was disabled as a
1462 * result of an error detected after decompression of a packet,
1463 * 0 otherwise. This is necessary because of patent nonsense.
1466 ccp_fatal_error(unit)
1472 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1473 if (errno != ENXIO && errno != EINVAL)
1474 error("Couldn't get compression flags: %m");
1477 return cf[0] & CCP_FATALERROR;
1481 * sifvjcomp - config tcp header compression
1484 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1485 int u, vjcomp, xcidcomp, xmaxcid;
1491 maxcid[0] = xcidcomp;
1492 maxcid[1] = 15; /* XXX should be rmaxcid */
1493 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1494 error("Couldn't initialize VJ compression: %m");
1498 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1499 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1500 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1501 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1503 error("Couldn't enable VJ compression: %m");
1510 * sifup - Config the interface up and enable IP packets to pass.
1518 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1519 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1520 error("Couldn't mark interface up (get): %m");
1523 ifr.ifr_flags |= IFF_UP;
1524 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1525 error("Couldn't mark interface up (set): %m");
1533 * sifdown - Config the interface down and disable IP.
1543 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1544 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1545 error("Couldn't mark interface down (get): %m");
1548 ifr.ifr_flags &= ~IFF_UP;
1549 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1550 error("Couldn't mark interface down (set): %m");
1558 * sifnpmode - Set the mode for handling packets for a given NP.
1561 sifnpmode(u, proto, mode)
1569 npi[1] = (int) mode;
1570 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1571 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1577 #if defined(SOL2) && defined(INET6)
1579 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1588 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1593 memset(&lifr, 0, sizeof(lifr));
1594 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1595 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1600 lifr.lifr_flags |= IFF_UP;
1601 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1602 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1613 * sifdown - Config the IPv6 interface down and disable IPv6.
1622 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1626 memset(&lifr, 0, sizeof(lifr));
1627 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1628 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1633 lifr.lifr_flags &= ~IFF_UP;
1634 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1635 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1646 * sif6addr - Config the interface with an IPv6 link-local address
1654 struct sockaddr_storage laddr;
1655 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1658 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1662 memset(&lifr, 0, sizeof(lifr));
1663 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1666 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1667 * zero values, hence the interface token came to be zero too,
1668 * and without this, in.ndpd will complain
1670 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1671 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1677 * Set the interface address and destination address
1679 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1680 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1685 memset(&lifr, 0, sizeof(lifr));
1686 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1687 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1688 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1697 * cif6addr - Remove the IPv6 address from interface
1707 #endif /* defined(SOL2) && defined(INET6) */
1710 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1713 * sifaddr - Config the interface IP addresses and netmask.
1723 memset(&ifr, 0, sizeof(ifr));
1724 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1725 ifr.ifr_addr.sa_family = AF_INET;
1726 INET_ADDR(ifr.ifr_addr) = m;
1727 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1728 error("Couldn't set IP netmask: %m");
1731 ifr.ifr_addr.sa_family = AF_INET;
1732 INET_ADDR(ifr.ifr_addr) = o;
1733 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1734 error("Couldn't set local IP address: %m");
1739 * On some systems, we have to explicitly set the point-to-point
1740 * flag bit before we can set a destination address.
1742 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1743 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1744 ifr.ifr_flags |= IFF_POINTOPOINT;
1745 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1746 error("Couldn't mark interface pt-to-pt: %m");
1750 ifr.ifr_dstaddr.sa_family = AF_INET;
1751 INET_ADDR(ifr.ifr_dstaddr) = h;
1752 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
1753 error("Couldn't set remote IP address: %m");
1756 #if 0 /* now done in ppp_send_config */
1757 ifr.ifr_metric = link_mtu;
1758 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1759 error("Couldn't set IP MTU: %m");
1768 * cifaddr - Clear the interface IP addresses, and delete routes
1769 * through the interface if possible.
1776 #if defined(__USLC__) /* was: #if 0 */
1777 cifroute(unit, ouraddr, hisaddr);
1779 notice("Removing ppp interface unit");
1780 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
1781 error("Can't remove ppp interface unit: %m");
1792 * sifdefaultroute - assign a default route through the address given.
1795 sifdefaultroute(u, l, g)
1801 #if defined(__USLC__)
1802 g = l; /* use the local address as gateway */
1804 memset(&rt, 0, sizeof(rt));
1805 rt.rt_dst.sa_family = AF_INET;
1806 INET_ADDR(rt.rt_dst) = 0;
1807 rt.rt_gateway.sa_family = AF_INET;
1808 INET_ADDR(rt.rt_gateway) = g;
1809 rt.rt_flags = RTF_GATEWAY;
1811 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
1812 error("Can't add default route: %m");
1816 default_route_gateway = g;
1821 * cifdefaultroute - delete a default route through the address given.
1824 cifdefaultroute(u, l, g)
1830 #if defined(__USLC__)
1831 g = l; /* use the local address as gateway */
1833 memset(&rt, 0, sizeof(rt));
1834 rt.rt_dst.sa_family = AF_INET;
1835 INET_ADDR(rt.rt_dst) = 0;
1836 rt.rt_gateway.sa_family = AF_INET;
1837 INET_ADDR(rt.rt_gateway) = g;
1838 rt.rt_flags = RTF_GATEWAY;
1840 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
1841 error("Can't delete default route: %m");
1845 default_route_gateway = 0;
1850 * sifproxyarp - Make a proxy ARP entry for the peer.
1853 sifproxyarp(unit, hisaddr)
1857 struct arpreq arpreq;
1859 memset(&arpreq, 0, sizeof(arpreq));
1860 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
1863 arpreq.arp_pa.sa_family = AF_INET;
1864 INET_ADDR(arpreq.arp_pa) = hisaddr;
1865 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
1866 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
1867 error("Couldn't set proxy ARP entry: %m");
1871 proxy_arp_addr = hisaddr;
1876 * cifproxyarp - Delete the proxy ARP entry for the peer.
1879 cifproxyarp(unit, hisaddr)
1883 struct arpreq arpreq;
1885 memset(&arpreq, 0, sizeof(arpreq));
1886 arpreq.arp_pa.sa_family = AF_INET;
1887 INET_ADDR(arpreq.arp_pa) = hisaddr;
1888 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
1889 error("Couldn't delete proxy ARP entry: %m");
1898 * get_ether_addr - get the hardware address of an interface on the
1899 * the same subnet as ipaddr.
1904 get_ether_addr(ipaddr, hwaddr)
1906 struct sockaddr *hwaddr;
1908 struct ifreq *ifr, *ifend, ifreq;
1911 u_int32_t ina, mask;
1914 * Scan through the system's network interfaces.
1917 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
1920 ifc.ifc_len = nif * sizeof(struct ifreq);
1921 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
1922 if (ifc.ifc_buf == 0)
1924 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
1925 warn("Couldn't get system interface list: %m");
1929 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
1930 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
1931 if (ifr->ifr_addr.sa_family != AF_INET)
1934 * Check that the interface is up, and not point-to-point or loopback.
1936 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
1937 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
1939 if ((ifreq.ifr_flags &
1940 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
1941 != (IFF_UP|IFF_BROADCAST))
1944 * Get its netmask and check that it's on the right subnet.
1946 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
1948 ina = INET_ADDR(ifr->ifr_addr);
1949 mask = INET_ADDR(ifreq.ifr_addr);
1950 if ((ipaddr & mask) == (ina & mask))
1955 warn("No suitable interface found for proxy ARP");
1960 info("found interface %s for proxy ARP", ifr->ifr_name);
1961 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
1962 error("Couldn't get hardware address for %s", ifr->ifr_name);
1972 * get_hw_addr_dlpi - obtain the hardware address using DLPI
1975 get_hw_addr_dlpi(name, hwaddr)
1977 struct sockaddr *hwaddr;
1980 int unit, iffd, adrlen;
1981 unsigned char *adrp;
1984 union DL_primitives prim;
1989 * We have to open the device and ask it for its hardware address.
1990 * First split apart the device name and unit.
1992 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
1993 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2000 * Open the device and do a DLPI attach and phys_addr_req.
2002 iffd = open(ifdev, O_RDWR);
2004 error("Can't open %s: %m", ifdev);
2007 if (dlpi_attach(iffd, unit) < 0
2008 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2009 || dlpi_info_req(iffd) < 0
2010 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2015 adrlen = reply.prim.info_ack.dl_addr_length;
2016 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2018 #if DL_CURRENT_VERSION >= 2
2019 if (reply.prim.info_ack.dl_sap_length < 0)
2020 adrlen += reply.prim.info_ack.dl_sap_length;
2022 adrp += reply.prim.info_ack.dl_sap_length;
2025 hwaddr->sa_family = AF_UNSPEC;
2026 memcpy(hwaddr->sa_data, adrp, adrlen);
2031 * get_hw_addr - obtain the hardware address for a named interface.
2034 get_hw_addr(name, ina, hwaddr)
2037 struct sockaddr *hwaddr;
2039 /* New way - get the address by doing an arp request. */
2043 s = socket(AF_INET, SOCK_DGRAM, 0);
2046 memset(&req, 0, sizeof(req));
2047 req.arp_pa.sa_family = AF_INET;
2048 INET_ADDR(req.arp_pa) = ina;
2049 if (ioctl(s, SIOCGARP, &req) < 0) {
2050 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2053 *hwaddr = req.arp_ha;
2054 hwaddr->sa_family = AF_UNSPEC;
2060 dlpi_attach(fd, ppa)
2063 dl_attach_req_t req;
2066 req.dl_primitive = DL_ATTACH_REQ;
2068 buf.len = sizeof(req);
2069 buf.buf = (void *) &req;
2070 return putmsg(fd, &buf, NULL, RS_HIPRI);
2080 req.dl_primitive = DL_INFO_REQ;
2081 buf.len = sizeof(req);
2082 buf.buf = (void *) &req;
2083 return putmsg(fd, &buf, NULL, RS_HIPRI);
2087 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2088 union DL_primitives *reply;
2089 int fd, expected_prim, maxlen;
2096 * Use poll to wait for a message with a timeout.
2099 pfd.events = POLLIN | POLLPRI;
2101 n = poll(&pfd, 1, 1000);
2102 } while (n == -1 && errno == EINTR);
2109 buf.maxlen = maxlen;
2110 buf.buf = (void *) reply;
2112 if (getmsg(fd, &buf, NULL, &flags) < 0)
2115 if (buf.len < sizeof(ulong)) {
2117 dbglog("dlpi response short (len=%d)\n", buf.len);
2121 if (reply->dl_primitive == expected_prim)
2125 if (reply->dl_primitive == DL_ERROR_ACK) {
2126 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2127 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2128 reply->error_ack.dl_error_primitive);
2130 dbglog("dlpi unexpected response prim %x\n",
2131 reply->dl_primitive);
2139 * Return user specified netmask, modified by any mask we might determine
2140 * for address `addr' (in network byte order).
2141 * Here we scan through the system's list of interfaces, looking for
2142 * any non-point-to-point interfaces which might appear to be on the same
2143 * network as `addr'. If we find any, we OR in their netmask to the
2144 * user-specified netmask.
2150 u_int32_t mask, nmask, ina;
2151 struct ifreq *ifr, *ifend, ifreq;
2156 if (IN_CLASSA(addr)) /* determine network mask for address class */
2157 nmask = IN_CLASSA_NET;
2158 else if (IN_CLASSB(addr))
2159 nmask = IN_CLASSB_NET;
2161 nmask = IN_CLASSC_NET;
2162 /* class D nets are disallowed by bad_ip_adrs */
2163 mask = netmask | htonl(nmask);
2166 * Scan through the system's network interfaces.
2169 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2172 ifc.ifc_len = nif * sizeof(struct ifreq);
2173 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2174 if (ifc.ifc_buf == 0)
2176 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2177 warn("Couldn't get system interface list: %m");
2181 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2182 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2184 * Check the interface's internet address.
2186 if (ifr->ifr_addr.sa_family != AF_INET)
2188 ina = INET_ADDR(ifr->ifr_addr);
2189 if ((ntohl(ina) & nmask) != (addr & nmask))
2192 * Check that the interface is up, and not point-to-point or loopback.
2194 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2195 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2197 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2201 * Get its netmask and OR it into our mask.
2203 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2205 mask |= INET_ADDR(ifreq.ifr_addr);
2213 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2216 logwtmp(line, name, host)
2217 const char *line, *name, *host;
2219 static struct utmpx utmpx;
2223 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2224 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2225 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2226 utmpx.ut_pid = getpid();
2227 utmpx.ut_type = USER_PROCESS;
2229 utmpx.ut_type = DEAD_PROCESS;
2231 gettimeofday(&utmpx.ut_tv, NULL);
2232 updwtmpx("/var/adm/wtmpx", &utmpx);
2236 * get_host_seed - return the serial number of this machine.
2243 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2244 error("sysinfo: %m");
2247 return (int) strtoul(buf, NULL, 16);
2251 strioctl(fd, cmd, ptr, ilen, olen)
2252 int fd, cmd, ilen, olen;
2255 struct strioctl str;
2261 if (ioctl(fd, I_STR, &str) == -1)
2263 if (str.ic_len != olen)
2264 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2265 olen, str.ic_len, cmd);
2271 * lock - create a lock file for the named lock device
2274 #define LOCK_PREFIX "/var/spool/locks/LK."
2275 static char lock_file[40]; /* name of lock file created */
2285 if (stat(dev, &sbuf) < 0) {
2286 error("Can't get device number for %s: %m", dev);
2289 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2290 error("Can't lock %s: not a character device", dev);
2293 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2294 LOCK_PREFIX, major(sbuf.st_dev),
2295 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2297 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2299 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2300 /* Read the lock file to find out who has the device locked */
2301 n = read(fd, ascii_pid, 11);
2303 error("Can't read pid from lock file %s", lock_file);
2307 pid = atoi(ascii_pid);
2308 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2309 /* pid no longer exists - remove the lock file */
2310 if (unlink(lock_file) == 0) {
2312 notice("Removed stale lock on %s (pid %d)",
2316 warn("Couldn't remove stale lock on %s",
2319 notice("Device %s is locked by pid %d",
2324 error("Can't create lock file %s: %m", lock_file);
2329 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2330 write(fd, ascii_pid, 11);
2337 * unlock - remove our lockfile
2350 * cifroute - delete a route through the addresses given.
2353 cifroute(u, our, his)
2359 memset(&rt, 0, sizeof(rt));
2360 rt.rt_dst.sa_family = AF_INET;
2361 INET_ADDR(rt.rt_dst) = his;
2362 rt.rt_gateway.sa_family = AF_INET;
2363 INET_ADDR(rt.rt_gateway) = our;
2364 rt.rt_flags = RTF_HOST;
2366 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2367 error("Can't delete route: %m");
2375 * have_route_to - determine if the system has a route to the specified
2376 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2377 * `addr' is in network byte order.
2378 * For demand mode to work properly, we have to ignore routes
2379 * through our own interface.
2381 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2382 #define T_CURRENT MI_T_CURRENT
2390 int fd, r, flags, i;
2392 struct T_optmgmt_req req;
2396 struct T_optmgmt_ack ack;
2397 unsigned char space[64];
2400 struct strbuf cbuf, dbuf;
2402 mib2_ipRouteEntry_t routes[8];
2403 mib2_ipRouteEntry_t *rp;
2405 fd = open(mux_dev_name, O_RDWR);
2407 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2411 req.req.PRIM_type = T_OPTMGMT_REQ;
2412 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2413 req.req.OPT_length = sizeof(req.hdr);
2414 req.req.MGMT_flags = T_CURRENT;
2416 req.hdr.level = MIB2_IP;
2420 cbuf.buf = (char *) &req;
2421 cbuf.len = sizeof(req);
2423 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2424 warn("have_route_to: putmsg: %m");
2430 cbuf.buf = (char *) &ack;
2431 cbuf.maxlen = sizeof(ack);
2432 dbuf.buf = (char *) routes;
2433 dbuf.maxlen = sizeof(routes);
2435 r = getmsg(fd, &cbuf, &dbuf, &flags);
2437 warn("have_route_to: getmsg: %m");
2442 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2443 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2444 || ack.ack.MGMT_flags != T_SUCCESS
2445 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2446 dbglog("have_route_to: bad message len=%d prim=%d",
2447 cbuf.len, ack.ack.PRIM_type);
2452 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2453 if (rh->level == 0 && rh->name == 0)
2455 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2456 while (r == MOREDATA)
2457 r = getmsg(fd, NULL, &dbuf, &flags);
2462 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2463 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2464 if (rp->ipRouteMask != ~0) {
2465 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2466 rp->ipRouteDest, rp->ipRouteNextHop,
2468 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2469 && rp->ipRouteNextHop != remote_addr)
2475 r = getmsg(fd, NULL, &dbuf, &flags);
2486 * get_pty - get a pty master/slave pair and chown the slave side to
2487 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2490 get_pty(master_fdp, slave_fdp, slave_name, uid)
2498 struct termios tios;
2500 mfd = open("/dev/ptmx", O_RDWR);
2502 error("Couldn't open pty master: %m");
2506 pty_name = ptsname(mfd);
2507 if (pty_name == NULL) {
2508 error("Couldn't get name of pty slave");
2512 if (chown(pty_name, uid, -1) < 0)
2513 warn("Couldn't change owner of pty slave: %m");
2514 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2515 warn("Couldn't change permissions on pty slave: %m");
2516 if (unlockpt(mfd) < 0)
2517 warn("Couldn't unlock pty slave: %m");
2519 sfd = open(pty_name, O_RDWR);
2521 error("Couldn't open pty slave %s: %m", pty_name);
2525 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2526 warn("Couldn't push ptem module on pty slave: %m");
2528 dbglog("Using %s", pty_name);
2529 strlcpy(slave_name, pty_name, MAXPATHLEN);