2 * System-dependent procedures for pppd under Solaris 2.
4 * Parts re-written by Adi Masputra <adi.masputra@sun.com>, based on
5 * the original sys-svr4.c
7 * Copyright (c) 2000 by Sun Microsystems, Inc.
10 * Permission to use, copy, modify, and distribute this software and its
11 * documentation is hereby granted, provided that the above copyright
12 * notice appears in all copies.
14 * SUN MAKES NO REPRESENTATION OR WARRANTIES ABOUT THE SUITABILITY OF
15 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
16 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
17 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
18 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
19 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES
21 * Copyright (c) 1995-2002 Paul Mackerras. All rights reserved.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
27 * 1. Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in
32 * the documentation and/or other materials provided with the
35 * 3. The name(s) of the authors of this software must not be used to
36 * endorse or promote products derived from this software without
37 * prior written permission.
39 * 4. Redistributions of any form whatsoever must retain the following
41 * "This product includes software developed by Paul Mackerras
42 * <paulus@samba.org>".
44 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
45 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
46 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
47 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
48 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
49 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
50 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
52 * Derived from main.c and pppd.h, which are:
54 * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
56 * Redistribution and use in source and binary forms, with or without
57 * modification, are permitted provided that the following conditions
60 * 1. Redistributions of source code must retain the above copyright
61 * notice, this list of conditions and the following disclaimer.
63 * 2. Redistributions in binary form must reproduce the above copyright
64 * notice, this list of conditions and the following disclaimer in
65 * the documentation and/or other materials provided with the
68 * 3. The name "Carnegie Mellon University" must not be used to
69 * endorse or promote products derived from this software without
70 * prior written permission. For permission or any legal
71 * details, please contact
72 * Office of Technology Transfer
73 * Carnegie Mellon University
75 * Pittsburgh, PA 15213-3890
76 * (412) 268-4387, fax: (412) 268-7395
77 * tech-transfer@andrew.cmu.edu
79 * 4. Redistributions of any form whatsoever must retain the following
81 * "This product includes software developed by Computing Services
82 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
84 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
85 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
86 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
87 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
88 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
89 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
90 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
93 #define RCSID "$Id: sys-solaris.c,v 1.12 2004/01/17 05:47:55 carlsonj Exp $"
106 #include <sys/termiox.h>
111 #include <sys/types.h>
112 #include <sys/ioccom.h>
113 #include <sys/stream.h>
114 #include <sys/stropts.h>
115 #include <sys/socket.h>
116 #include <sys/sockio.h>
117 #include <sys/sysmacros.h>
118 #include <sys/systeminfo.h>
119 #include <sys/dlpi.h>
120 #include <sys/stat.h>
121 #include <sys/mkdev.h>
123 #include <net/if_arp.h>
124 #include <net/route.h>
125 #include <net/ppp_defs.h>
126 #include <net/pppio.h>
127 #include <netinet/in.h>
129 #include <sys/tihdr.h>
130 #include <sys/tiuser.h>
131 #include <inet/common.h>
132 #include <inet/mib2.h>
133 #include <sys/ethernet.h>
142 #if !defined(PPP_DRV_NAME)
143 #define PPP_DRV_NAME "ppp"
144 #endif /* !defined(PPP_DRV_NAME) */
146 #if !defined(PPP_DEV_NAME)
147 #define PPP_DEV_NAME "/dev/" PPP_DRV_NAME
148 #endif /* !defined(PPP_DEV_NAME) */
150 #if !defined(AHDLC_MOD_NAME)
151 #define AHDLC_MOD_NAME "ppp_ahdl"
152 #endif /* !defined(AHDLC_MOD_NAME) */
154 #if !defined(COMP_MOD_NAME)
155 #define COMP_MOD_NAME "ppp_comp"
156 #endif /* !defined(COMP_MOD_NAME) */
158 #if !defined(IP_DEV_NAME)
159 #define IP_DEV_NAME "/dev/ip"
160 #endif /* !defined(IP_DEV_NAME) */
162 #if !defined(IP_MOD_NAME)
163 #define IP_MOD_NAME "ip"
164 #endif /* !defined(IP_MOD_NAME) */
166 #if !defined(UDP_DEV_NAME) && defined(SOL2)
167 #define UDP_DEV_NAME "/dev/udp"
168 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
170 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
171 #define UDP6_DEV_NAME "/dev/udp6"
172 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
174 static const char rcsid[] = RCSID;
178 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
179 * under. It is used in place of "/dev/ip" since STREAMS will not let
180 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
181 * driver at the bottom of the tunneling interfaces stream.
183 static char *mux_dev_name = UDP_DEV_NAME;
185 static char *mux_dev_name = IP_DEV_NAME;
188 static int fdmuxid = -1;
190 static int ipmuxid = -1;
192 #if defined(INET6) && defined(SOL2)
193 static int ip6fd; /* IP file descriptor */
194 static int ip6muxid = -1; /* Multiplexer file descriptor */
195 static int if6_is_up = 0; /* IPv6 interface has been marked up */
197 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
198 s->sin6_addr.s6_addr32[0] = htonl(as); \
199 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
200 s->sin6_family = AF_INET6; \
201 l.lifr_addr.ss_family = AF_INET6; \
202 l.lifr_addrlen = 10; \
203 l.lifr_addr = laddr; \
206 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
207 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
209 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
210 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
212 #endif /* defined(INET6) && defined(SOL2) */
214 #if defined(INET6) && defined(SOL2)
215 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
217 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
218 #define MAXIFS 256 /* Max # of interfaces */
219 #endif /* defined(INET6) && defined(SOL2) */
221 static int restore_term;
222 static struct termios inittermios;
224 static struct termiox inittermiox;
225 static int termiox_ok;
227 static struct winsize wsinfo; /* Initial window size info */
228 static pid_t tty_sid; /* original session ID for terminal */
230 extern u_char inpacket_buf[]; /* borrowed from main.c */
232 #define MAX_POLLFDS 32
233 static struct pollfd pollfds[MAX_POLLFDS];
234 static int n_pollfds;
236 static int link_mtu, link_mru;
239 static int tty_nmodules;
240 static char tty_modules[NMODULES][FMNAMESZ+1];
241 static int tty_npushed;
243 static int if_is_up; /* Interface has been marked up */
244 static u_int32_t remote_addr; /* IP address of peer */
245 static u_int32_t default_route_gateway; /* Gateway for default route added */
246 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
248 /* Prototypes for procedures local to this file. */
249 static int translate_speed __P((int));
250 static int baud_rate_of __P((int));
251 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
252 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
253 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
254 static int dlpi_attach __P((int, int));
255 static int dlpi_info_req __P((int));
256 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
257 static int strioctl __P((int, int, void *, int, int));
261 * sifppa - Sets interface ppa
263 * without setting the ppa, ip module will return EINVAL upon setting the
264 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
265 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
266 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
267 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
268 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
269 * is required because the ppp DLPI provider advertises itself as
270 * a DLPI style 2 type, which requires a point of attachment to be
271 * specified. The only way the user can specify a point of attachment
272 * is via SIOCSLIFNAME or IF_UNITSEL.
274 * Such changes in the behavior of ip module was made to meet new or
275 * evolving standards requirements.
283 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
287 #if defined(SOL2) && defined(INET6)
289 * get_first_ethernet - returns the first Ethernet interface name found in
290 * the system, or NULL if none is found
292 * NOTE: This is the lifreq version (Solaris 8 and above)
299 struct lifreq *plifreq;
301 int fd, num_ifs, i, found;
305 fd = socket(AF_INET, SOCK_DGRAM, 0);
311 * Find out how many interfaces are running
313 lifn.lifn_family = AF_UNSPEC;
314 lifn.lifn_flags = LIFC_NOXMIT;
315 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
317 error("could not determine number of interfaces: %m");
321 num_ifs = lifn.lifn_count;
322 req_size = num_ifs * sizeof(struct lifreq);
323 req = malloc(req_size);
326 error("out of memory");
331 * Get interface configuration info for all interfaces
333 lifc.lifc_family = AF_UNSPEC;
334 lifc.lifc_flags = LIFC_NOXMIT;
335 lifc.lifc_len = req_size;
337 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
340 error("SIOCGLIFCONF: %m");
345 * And traverse each interface to look specifically for the first
346 * occurence of an Ethernet interface which has been marked up
348 plifreq = lifc.lifc_req;
350 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
352 if (strchr(plifreq->lifr_name, ':') != NULL)
355 memset(&lifr, 0, sizeof(lifr));
356 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
357 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
360 error("SIOCGLIFFLAGS: %m");
363 fl = lifr.lifr_flags;
365 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
366 != (IFF_UP | IFF_BROADCAST))
376 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
377 return (char *)first_ether_name;
383 * get_first_ethernet - returns the first Ethernet interface name found in
384 * the system, or NULL if none is found
386 * NOTE: This is the ifreq version (before Solaris 8).
392 struct ifreq *pifreq;
394 int fd, num_ifs, i, found;
398 fd = socket(AF_INET, SOCK_DGRAM, 0);
404 * Find out how many interfaces are running
406 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
410 req_size = num_ifs * sizeof(struct ifreq);
411 req = malloc(req_size);
414 error("out of memory");
419 * Get interface configuration info for all interfaces
421 ifc.ifc_len = req_size;
423 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
426 error("SIOCGIFCONF: %m");
431 * And traverse each interface to look specifically for the first
432 * occurence of an Ethernet interface which has been marked up
434 pifreq = ifc.ifc_req;
436 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
438 if (strchr(pifreq->ifr_name, ':') != NULL)
441 memset(&ifr, 0, sizeof(ifr));
442 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
443 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
446 error("SIOCGIFFLAGS: %m");
451 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
452 != (IFF_UP | IFF_BROADCAST))
462 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
463 return (char *)first_ether_name;
467 #endif /* defined(SOL2) && defined(INET6) */
471 * get_if_hwaddr - get the hardware address for the specified
472 * network interface device.
475 get_if_hwaddr(u_char *addr, char *if_name)
477 struct sockaddr s_eth_addr;
478 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
484 * Send DL_INFO_REQ to the driver to solicit its MAC address
486 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
487 error("could not obtain hardware address for %s", if_name);
491 memcpy(addr, eth_addr->ether_addr_octet, 6);
496 #if defined(SOL2) && defined(INET6)
498 * slifname - Sets interface ppa and flags
500 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
501 * be set in order to declare this as an IPv6 interface
511 memset(&lifr, 0, sizeof(lifr));
512 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
516 lifr.lifr_flags |= IFF_IPV6;
517 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
519 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
521 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
531 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
533 * walks the list of valid ethernet interfaces, and convert the first
534 * found 48-bit MAC address into EUI 64. caller also assumes that
535 * the system has a properly configured Ethernet interface for this
536 * function to return non-zero.
539 ether_to_eui64(eui64_t *p_eui64)
541 struct sockaddr s_eth_addr;
542 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
545 if ((if_name = get_first_ethernet()) == NULL) {
546 error("no persistent id can be found");
551 * Send DL_INFO_REQ to the driver to solicit its MAC address
553 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
554 error("could not obtain hardware address for %s", if_name);
559 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
561 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
562 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
563 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
564 p_eui64->e8[3] = 0xFF;
565 p_eui64->e8[4] = 0xFE;
566 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
567 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
568 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
572 #endif /* defined(SOL2) && defined(INET6) */
575 * sys_init - System-dependent initialization.
582 #if defined(INET6) && defined(SOL2)
585 #endif /* defined(INET6) && defined(SOL2) */
588 union DL_primitives prim;
591 #endif /* !defined(SOL2) */
593 ipfd = open(mux_dev_name, O_RDWR, 0);
595 fatal("Couldn't open IP device: %m");
597 #if defined(INET6) && defined(SOL2)
598 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
600 fatal("Couldn't open IP device (2): %m");
601 #endif /* defined(INET6) && defined(SOL2) */
603 if (default_device && !notty)
604 tty_sid = getsid((pid_t)0);
606 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
608 fatal("Can't open %s: %m", PPP_DEV_NAME);
609 if (kdebugflag & 1) {
610 x = PPPDBG_LOG + PPPDBG_DRIVER;
611 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
614 /* Assign a new PPA and get its unit number. */
615 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
616 fatal("Can't create new PPP interface: %m");
620 * Since sys_init() is called prior to ifname being set in main(),
621 * we need to get the ifname now, otherwise slifname(), and others,
622 * will fail, or maybe, I should move them to a later point ?
623 * <adi.masputra@sun.com>
625 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
626 #endif /* defined(SOL2) */
628 * Open the ppp device again and link it under the ip multiplexor.
629 * IP will assign a unit number which hopefully is the same as ifunit.
630 * I don't know any way to be certain they will be the same. :-(
632 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
634 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
635 if (kdebugflag & 1) {
636 x = PPPDBG_LOG + PPPDBG_DRIVER;
637 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
640 #if defined(INET6) && defined(SOL2)
641 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
644 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
646 if (kdebugflag & 1) {
647 x = PPPDBG_LOG + PPPDBG_DRIVER;
648 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
650 #endif /* defined(INET6) && defined(SOL2) */
653 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
657 #endif /* defined(INET6) */
658 fatal("Can't push IP module: %m");
662 * Assign ppa according to the unit number returned by ppp device
663 * after plumbing is completed above.
665 if (sifppa(ifd, ifunit) < 0) {
669 #endif /* defined(INET6) */
670 fatal("Can't set ppa for unit %d: %m", ifunit);
675 * An IPv6 interface is created anyway, even when the user does not
676 * explicitly enable it. Note that the interface will be marked
677 * IPv6 during slifname().
679 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
682 fatal("Can't push IP module (2): %m");
686 * Assign ppa according to the unit number returned by ppp device
687 * after plumbing is completed above. In addition, mark the interface
688 * as an IPv6 interface.
690 if (slifname(i6fd, ifunit) < 0) {
693 fatal("Can't set ifname for unit %d: %m", ifunit);
695 #endif /* defined(INET6) */
697 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
702 #endif /* defined(INET6) */
703 fatal("Can't I_PLINK PPP device to IP: %m");
706 memset(&ifr, 0, sizeof(ifr));
707 sprintf(ifr.ifr_name, "%s", ifname);
708 ifr.ifr_ip_muxid = ipmuxid;
711 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
712 * This is so that an arbitrary module can be inserted, or deleted,
713 * between ip module and the device driver without tearing down the
714 * existing stream. Such feature requires the mux ids, which is set
715 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
717 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
718 ioctl(ipfd, I_PUNLINK, ipmuxid);
721 #endif /* defined(INET6) */
722 fatal("SIOCSIFMUXID: %m");
725 #else /* else if !defined(SOL2) */
727 if (dlpi_attach(ifd, ifunit) < 0 ||
728 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
730 fatal("Can't attach to ppp%d: %m", ifunit);
733 ipmuxid = ioctl(ipfd, I_LINK, ifd);
736 fatal("Can't link PPP device to IP: %m");
737 #endif /* defined(SOL2) */
739 #if defined(INET6) && defined(SOL2)
740 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
743 ioctl(ipfd, I_PUNLINK, ipmuxid);
744 fatal("Can't I_PLINK PPP device to IP (2): %m");
747 memset(&lifr, 0, sizeof(lifr));
748 sprintf(lifr.lifr_name, "%s", ifname);
749 lifr.lifr_ip_muxid = ip6muxid;
752 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
754 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
755 ioctl(ipfd, I_PUNLINK, ipmuxid);
756 ioctl(ip6fd, I_PUNLINK, ip6muxid);
757 fatal("Can't link PPP device to IP (2): %m");
759 #endif /* defined(INET6) && defined(SOL2) */
762 /* Set the interface name for the link. */
763 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
764 ifr.ifr_metric = ipmuxid;
765 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
766 fatal("Can't set interface name %s: %m", ifr.ifr_name);
767 #endif /* !defined(SOL2) */
773 * sys_cleanup - restore any system state we modified before exiting:
774 * mark the interface down, delete default route and/or proxy arp entry.
775 * This should call die() because it's called from die().
784 #endif /* defined(INET6) */
785 #endif /* defined(SOL2) */
787 #if defined(SOL2) && defined(INET6)
790 #endif /* defined(SOL2) && defined(INET6) */
793 if (default_route_gateway)
794 cifdefaultroute(0, default_route_gateway, default_route_gateway);
796 cifproxyarp(0, proxy_arp_addr);
799 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
800 * unlink and re-link the modules, causing the muxid to change.
802 memset(&ifr, 0, sizeof(ifr));
803 sprintf(ifr.ifr_name, "%s", ifname);
804 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
805 error("SIOCGIFFLAGS: %m");
809 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
810 error("SIOCGIFMUXID: %m");
814 ipmuxid = ifr.ifr_ip_muxid;
816 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
817 error("Can't I_PUNLINK PPP from IP: %m");
822 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
823 * unlink and re-link the modules, causing the muxid to change.
825 memset(&lifr, 0, sizeof(lifr));
826 sprintf(lifr.lifr_name, "%s", ifname);
827 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
828 error("SIOCGLIFFLAGS: %m");
832 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
833 error("SIOCGLIFMUXID: %m");
837 ip6muxid = lifr.lifr_ip_muxid;
839 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
840 error("Can't I_PUNLINK PPP from IP (2): %m");
842 #endif /* defined(INET6) */
843 #endif /* defined(SOL2) */
847 * sys_close - Clean up in a child process before execing.
853 #if defined(INET6) && defined(SOL2)
855 #endif /* defined(INET6) && defined(SOL2) */
861 * sys_check_options - check the options that the user specified
871 * daemon - Detach us from controlling terminal session.
874 daemon(nochdir, noclose)
875 int nochdir, noclose;
879 if ((pid = fork()) < 0)
882 exit(0); /* parent dies */
887 fclose(stdin); /* don't need stdin, stdout, stderr */
896 * ppp_available - check whether the system has any ppp interfaces
903 return stat(PPP_DEV_NAME, &buf) >= 0;
907 * any_compressions - see if compression is enabled or not
909 * In the STREAMS implementation of kernel-portion pppd,
910 * the comp STREAMS module performs the ACFC, PFC, as well
911 * CCP and VJ compressions. However, if the user has explicitly
912 * declare to not enable them from the command line, there is
913 * no point of having the comp module be pushed on the stream.
918 if ((!lcp_wantoptions[0].neg_accompression) &&
919 (!lcp_wantoptions[0].neg_pcompression) &&
920 (!ccp_protent.enabled_flag) &&
921 (!ipcp_wantoptions[0].neg_vj)) {
928 * tty_establish_ppp - Turn the serial port into a ppp interface.
931 tty_establish_ppp(fd)
936 /* Pop any existing modules off the tty stream. */
938 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
939 || strcmp(tty_modules[i], "ptem") == 0
940 || ioctl(fd, I_POP, 0) < 0)
944 /* Push the async hdlc module and the compressor module. */
948 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
949 error("Couldn't push PPP Async HDLC module: %m");
954 if (kdebugflag & 4) {
955 i = PPPDBG_LOG + PPPDBG_AHDLC;
956 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
959 * There's no need to push comp module if we don't intend
960 * to compress anything
962 if (any_compressions()) {
963 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
964 error("Couldn't push PPP compression module: %m");
969 if (kdebugflag & 2) {
971 if (any_compressions())
973 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
976 /* Link the serial port under the PPP multiplexor. */
977 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
978 error("Can't link tty to PPP mux: %m");
986 * tty_disestablish_ppp - Restore the serial port to normal operation.
987 * It attempts to reconstruct the stream with the previously popped
988 * modules. This shouldn't call die() because it's called from die().
991 tty_disestablish_ppp(fd)
997 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
999 error("Can't unlink tty from PPP mux: %m");
1004 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
1006 for (i = tty_nmodules - 1; i >= 0; --i)
1007 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
1008 error("Couldn't restore tty module %s: %m",
1011 if (hungup && default_device && tty_sid > 0) {
1013 * If we have received a hangup, we need to send a SIGHUP
1014 * to the terminal's controlling process. The reason is
1015 * that the original stream head for the terminal hasn't
1016 * seen the M_HANGUP message (it went up through the ppp
1017 * driver to the stream head for our fd to /dev/ppp).
1019 kill(tty_sid, SIGHUP);
1025 * Check whether the link seems not to be 8-bit clean.
1033 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1038 s = "bit 7 set to 1";
1041 s = "bit 7 set to 0";
1051 warn("Serial link is not 8-bit clean:");
1052 warn("All received characters had %s", s);
1057 * List of valid speeds.
1060 int speed_int, speed_val;
1129 { 115200, B115200 },
1132 { 153600, B153600 },
1135 { 230400, B230400 },
1138 { 307200, B307200 },
1141 { 460800, B460800 },
1147 * Translate from bits/second to a speed_t.
1150 translate_speed(bps)
1153 struct speed *speedp;
1157 for (speedp = speeds; speedp->speed_int; speedp++)
1158 if (bps == speedp->speed_int)
1159 return speedp->speed_val;
1160 warn("speed %d not supported", bps);
1165 * Translate from a speed_t to bits/second.
1171 struct speed *speedp;
1175 for (speedp = speeds; speedp->speed_int; speedp++)
1176 if (speed == speedp->speed_val)
1177 return speedp->speed_int;
1182 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1183 * at the requested speed, etc. If `local' is true, set CLOCAL
1184 * regardless of whether the modem option was specified.
1187 set_up_tty(fd, local)
1191 struct termios tios;
1192 #if !defined (CRTSCTS)
1193 struct termiox tiox;
1196 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1197 fatal("tcgetattr: %m");
1201 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1203 if (errno != ENOTTY)
1204 error("TCGETX: %m");
1208 if (!restore_term) {
1214 ioctl(fd, TIOCGWINSZ, &wsinfo);
1217 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1220 tios.c_cflag |= CRTSCTS;
1221 else if (crtscts < 0)
1222 tios.c_cflag &= ~CRTSCTS;
1224 if (crtscts != 0 && !termiox_ok) {
1225 error("Can't set RTS/CTS flow control");
1226 } else if (crtscts > 0) {
1227 tiox.x_hflag |= RTSXOFF|CTSXON;
1228 } else if (crtscts < 0) {
1229 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1233 tios.c_cflag |= CS8 | CREAD | HUPCL;
1234 if (local || !modem)
1235 tios.c_cflag |= CLOCAL;
1236 tios.c_iflag = IGNBRK | IGNPAR;
1239 tios.c_cc[VMIN] = 1;
1240 tios.c_cc[VTIME] = 0;
1242 if (crtscts == -2) {
1243 tios.c_iflag |= IXON | IXOFF;
1244 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1245 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1248 speed = translate_speed(inspeed);
1250 cfsetospeed(&tios, speed);
1251 cfsetispeed(&tios, speed);
1253 speed = cfgetospeed(&tios);
1255 * We can't proceed if the serial port speed is 0,
1256 * since that implies that the serial port is disabled.
1258 if ((speed == B0) && !sync_serial)
1259 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1262 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1263 fatal("tcsetattr: %m");
1266 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1267 error("TCSETXF: %m");
1271 baud_rate = inspeed = baud_rate_of(speed);
1277 * restore_tty - restore the terminal to the saved settings.
1284 if (!default_device) {
1286 * Turn off echoing, because otherwise we can get into
1287 * a loop with the tty and the modem echoing to each other.
1288 * We presume we are the sole user of this tty device, so
1289 * when we close it, it will revert to its defaults anyway.
1291 inittermios.c_lflag &= ~(ECHO | ECHONL);
1293 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1294 if (!hungup && errno != ENXIO)
1295 warn("tcsetattr: %m");
1297 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1298 if (!hungup && errno != ENXIO)
1299 error("TCSETXF: %m");
1303 ioctl(fd, TIOCSWINSZ, &wsinfo);
1309 * setdtr - control the DTR line on the serial port.
1310 * This is called from die(), so it shouldn't call die().
1316 int modembits = TIOCM_DTR;
1318 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1322 * open_loopback - open the device we use for getting packets
1323 * in demand mode. Under Solaris 2, we use our existing fd
1324 * to the ppp driver.
1333 * output - Output PPP packet.
1336 output(unit, p, len)
1345 dump_packet("sent", p, len);
1346 if (snoop_send_hook) snoop_send_hook(p, len);
1349 data.buf = (caddr_t) p;
1351 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1352 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1354 error("Couldn't send packet: %m");
1358 pfd.events = POLLOUT;
1359 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1365 * wait_input - wait until there is data available,
1366 * for the length of time specified by *timo (indefinite
1371 struct timeval *timo;
1375 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1376 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1381 * add_fd - add an fd to the set that wait_input waits for.
1388 for (n = 0; n < n_pollfds; ++n)
1389 if (pollfds[n].fd == fd)
1391 if (n_pollfds < MAX_POLLFDS) {
1392 pollfds[n_pollfds].fd = fd;
1393 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1396 error("Too many inputs!");
1400 * remove_fd - remove an fd from the set that wait_input waits for.
1407 for (n = 0; n < n_pollfds; ++n) {
1408 if (pollfds[n].fd == fd) {
1409 while (++n < n_pollfds)
1410 pollfds[n-1] = pollfds[n];
1419 * wait_loop_output - wait until there is data available on the
1420 * loopback, for the length of time specified by *timo (indefinite
1424 wait_loop_output(timo)
1425 struct timeval *timo;
1431 * wait_time - wait for a given length of time or until a
1432 * signal is received.
1436 struct timeval *timo;
1440 n = select(0, NULL, NULL, NULL, timo);
1441 if (n < 0 && errno != EINTR)
1442 fatal("select: %m");
1448 * read_packet - get a PPP packet from the serial device.
1454 struct strbuf ctrl, data;
1456 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1459 data.maxlen = PPP_MRU + PPP_HDRLEN;
1460 data.buf = (caddr_t) buf;
1461 ctrl.maxlen = sizeof(ctrlbuf);
1462 ctrl.buf = (caddr_t) ctrlbuf;
1464 len = getmsg(pppfd, &ctrl, &data, &flags);
1466 if (errno == EAGAIN || errno == EINTR)
1468 fatal("Error reading packet: %m");
1475 * Got a M_PROTO or M_PCPROTO message. Interpret it
1476 * as a DLPI primitive??
1479 dbglog("got dlpi prim 0x%x, len=%d",
1480 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1486 * get_loop_output - get outgoing packets from the ppp device,
1487 * and detect when we want to bring the real link up.
1488 * Return value is 1 if we need to bring up the link, 0 otherwise.
1496 while ((len = read_packet(inpacket_buf)) > 0) {
1497 if (loop_frame(inpacket_buf, len))
1504 * netif_set_mtu - set the MTU on the PPP network interface.
1507 netif_set_mtu(unit, mtu)
1511 #if defined(INET6) && defined(SOL2)
1514 #endif /* defined(INET6) && defined(SOL2) */
1516 memset(&ifr, 0, sizeof(ifr));
1517 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1518 ifr.ifr_metric = link_mtu;
1519 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1520 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1523 #if defined(INET6) && defined(SOL2)
1524 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1526 error("Couldn't open IPv6 socket: %m");
1528 memset(&lifr, 0, sizeof(lifr));
1529 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1530 lifr.lifr_mtu = link_mtu;
1531 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1533 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1536 #endif /* defined(INET6) && defined(SOL2) */
1540 * tty_send_config - configure the transmit characteristics of
1541 * the ppp interface.
1544 tty_send_config(mtu, asyncmap, pcomp, accomp)
1552 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1553 if (hungup && errno == ENXIO) {
1557 error("Couldn't set MTU: %m");
1561 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1562 error("Couldn't set transmit ACCM: %m");
1564 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1565 cf[1] = COMP_PROT | COMP_AC;
1566 if (any_compressions() &&
1567 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1568 error("Couldn't set prot/AC compression: %m");
1573 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1583 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1584 if (!hungup || errno != ENXIO)
1585 warn("Couldn't set extended ACCM: %m");
1590 * tty_recv_config - configure the receive-side characteristics of
1591 * the ppp interface.
1594 tty_recv_config(mru, asyncmap, pcomp, accomp)
1602 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1603 if (hungup && errno == ENXIO) {
1607 error("Couldn't set MRU: %m");
1611 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1612 error("Couldn't set receive ACCM: %m");
1614 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1615 cf[1] = DECOMP_PROT | DECOMP_AC;
1616 if (any_compressions() &&
1617 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1618 error("Couldn't set prot/AC decompression: %m");
1623 * ccp_test - ask kernel whether a given compression method
1624 * is acceptable for use.
1627 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1628 int unit, opt_len, for_transmit;
1631 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1632 opt_ptr, opt_len, 0) >= 0)
1634 return (errno == ENOSR)? 0: -1;
1638 * ccp_flags_set - inform kernel about the current state of CCP.
1641 ccp_flags_set(unit, isopen, isup)
1642 int unit, isopen, isup;
1646 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1647 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1648 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1649 if (!hungup || errno != ENXIO)
1650 error("Couldn't set kernel CCP state: %m");
1655 * get_idle_time - return how long the link has been idle.
1658 get_idle_time(u, ip)
1660 struct ppp_idle *ip;
1662 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1666 * get_ppp_stats - return statistics for the link.
1669 get_ppp_stats(u, stats)
1671 struct pppd_stats *stats;
1676 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1677 error("Couldn't get link statistics: %m");
1680 stats->bytes_in = s.p.ppp_ibytes;
1681 stats->bytes_out = s.p.ppp_obytes;
1682 stats->pkts_in = s.p.ppp_ipackets;
1683 stats->pkts_out = s.p.ppp_opackets;
1689 * set_filters - transfer the pass and active filters to the kernel.
1692 set_filters(pass, active)
1693 struct bpf_program *pass, *active;
1697 if (pass->bf_len > 0) {
1698 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1699 sizeof(struct bpf_program), 0) < 0) {
1700 error("Couldn't set pass-filter in kernel: %m");
1704 if (active->bf_len > 0) {
1705 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1706 sizeof(struct bpf_program), 0) < 0) {
1707 error("Couldn't set active-filter in kernel: %m");
1716 * ccp_fatal_error - returns 1 if decompression was disabled as a
1717 * result of an error detected after decompression of a packet,
1718 * 0 otherwise. This is necessary because of patent nonsense.
1721 ccp_fatal_error(unit)
1727 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1728 if (errno != ENXIO && errno != EINVAL)
1729 error("Couldn't get compression flags: %m");
1732 return cf[0] & CCP_FATALERROR;
1736 * sifvjcomp - config tcp header compression
1739 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1740 int u, vjcomp, xcidcomp, xmaxcid;
1746 maxcid[0] = xcidcomp;
1747 maxcid[1] = 15; /* XXX should be rmaxcid */
1748 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1749 error("Couldn't initialize VJ compression: %m");
1753 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1754 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1755 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1756 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1758 error("Couldn't enable VJ compression: %m");
1765 * sifup - Config the interface up and enable IP packets to pass.
1773 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1774 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1775 error("Couldn't mark interface up (get): %m");
1778 ifr.ifr_flags |= IFF_UP;
1779 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1780 error("Couldn't mark interface up (set): %m");
1788 * sifdown - Config the interface down and disable IP.
1798 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1799 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1800 error("Couldn't mark interface down (get): %m");
1803 ifr.ifr_flags &= ~IFF_UP;
1804 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1805 error("Couldn't mark interface down (set): %m");
1813 * sifnpmode - Set the mode for handling packets for a given NP.
1816 sifnpmode(u, proto, mode)
1824 npi[1] = (int) mode;
1825 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1826 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1832 #if defined(SOL2) && defined(INET6)
1834 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1843 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1848 memset(&lifr, 0, sizeof(lifr));
1849 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1850 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1855 lifr.lifr_flags |= IFF_UP;
1856 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1857 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1868 * sifdown - Config the IPv6 interface down and disable IPv6.
1877 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1881 memset(&lifr, 0, sizeof(lifr));
1882 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1883 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1888 lifr.lifr_flags &= ~IFF_UP;
1889 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1890 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1901 * sif6addr - Config the interface with an IPv6 link-local address
1909 struct sockaddr_storage laddr;
1910 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1913 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1917 memset(&lifr, 0, sizeof(lifr));
1918 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1921 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1922 * zero values, hence the interface token came to be zero too,
1923 * and without this, in.ndpd will complain
1925 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1926 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1932 * Set the interface address and destination address
1934 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1935 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1940 memset(&lifr, 0, sizeof(lifr));
1941 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1942 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1943 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1952 * cif6addr - Remove the IPv6 address from interface
1962 #endif /* defined(SOL2) && defined(INET6) */
1965 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1968 * sifaddr - Config the interface IP addresses and netmask.
1978 memset(&ifr, 0, sizeof(ifr));
1979 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1980 ifr.ifr_addr.sa_family = AF_INET;
1981 INET_ADDR(ifr.ifr_addr) = m;
1982 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1983 error("Couldn't set IP netmask: %m");
1986 ifr.ifr_addr.sa_family = AF_INET;
1987 INET_ADDR(ifr.ifr_addr) = o;
1988 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1989 error("Couldn't set local IP address: %m");
1994 * On some systems, we have to explicitly set the point-to-point
1995 * flag bit before we can set a destination address.
1997 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1998 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1999 ifr.ifr_flags |= IFF_POINTOPOINT;
2000 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2001 error("Couldn't mark interface pt-to-pt: %m");
2005 ifr.ifr_dstaddr.sa_family = AF_INET;
2006 INET_ADDR(ifr.ifr_dstaddr) = h;
2007 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2008 error("Couldn't set remote IP address: %m");
2017 * cifaddr - Clear the interface IP addresses, and delete routes
2018 * through the interface if possible.
2025 #if defined(__USLC__) /* was: #if 0 */
2026 cifroute(unit, ouraddr, hisaddr);
2028 notice("Removing ppp interface unit");
2029 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2030 error("Can't remove ppp interface unit: %m");
2041 * sifdefaultroute - assign a default route through the address given.
2044 sifdefaultroute(u, l, g)
2050 #if defined(__USLC__)
2051 g = l; /* use the local address as gateway */
2053 memset(&rt, 0, sizeof(rt));
2054 rt.rt_dst.sa_family = AF_INET;
2055 INET_ADDR(rt.rt_dst) = 0;
2056 rt.rt_gateway.sa_family = AF_INET;
2057 INET_ADDR(rt.rt_gateway) = g;
2058 rt.rt_flags = RTF_GATEWAY;
2060 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2061 error("Can't add default route: %m");
2065 default_route_gateway = g;
2070 * cifdefaultroute - delete a default route through the address given.
2073 cifdefaultroute(u, l, g)
2079 #if defined(__USLC__)
2080 g = l; /* use the local address as gateway */
2082 memset(&rt, 0, sizeof(rt));
2083 rt.rt_dst.sa_family = AF_INET;
2084 INET_ADDR(rt.rt_dst) = 0;
2085 rt.rt_gateway.sa_family = AF_INET;
2086 INET_ADDR(rt.rt_gateway) = g;
2087 rt.rt_flags = RTF_GATEWAY;
2089 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2090 error("Can't delete default route: %m");
2094 default_route_gateway = 0;
2099 * sifproxyarp - Make a proxy ARP entry for the peer.
2102 sifproxyarp(unit, hisaddr)
2106 struct arpreq arpreq;
2108 memset(&arpreq, 0, sizeof(arpreq));
2109 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2112 arpreq.arp_pa.sa_family = AF_INET;
2113 INET_ADDR(arpreq.arp_pa) = hisaddr;
2114 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2115 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2116 error("Couldn't set proxy ARP entry: %m");
2120 proxy_arp_addr = hisaddr;
2125 * cifproxyarp - Delete the proxy ARP entry for the peer.
2128 cifproxyarp(unit, hisaddr)
2132 struct arpreq arpreq;
2134 memset(&arpreq, 0, sizeof(arpreq));
2135 arpreq.arp_pa.sa_family = AF_INET;
2136 INET_ADDR(arpreq.arp_pa) = hisaddr;
2137 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2138 error("Couldn't delete proxy ARP entry: %m");
2147 * get_ether_addr - get the hardware address of an interface on the
2148 * the same subnet as ipaddr.
2153 get_ether_addr(ipaddr, hwaddr)
2155 struct sockaddr *hwaddr;
2157 struct ifreq *ifr, *ifend, ifreq;
2160 u_int32_t ina, mask;
2163 * Scan through the system's network interfaces.
2166 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2169 ifc.ifc_len = nif * sizeof(struct ifreq);
2170 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2171 if (ifc.ifc_buf == 0)
2173 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2174 warn("Couldn't get system interface list: %m");
2178 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2179 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2180 if (ifr->ifr_addr.sa_family != AF_INET)
2183 * Check that the interface is up, and not point-to-point or loopback.
2185 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2186 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2188 if ((ifreq.ifr_flags &
2189 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2190 != (IFF_UP|IFF_BROADCAST))
2193 * Get its netmask and check that it's on the right subnet.
2195 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2197 ina = INET_ADDR(ifr->ifr_addr);
2198 mask = INET_ADDR(ifreq.ifr_addr);
2199 if ((ipaddr & mask) == (ina & mask))
2204 warn("No suitable interface found for proxy ARP");
2209 info("found interface %s for proxy ARP", ifr->ifr_name);
2210 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2211 error("Couldn't get hardware address for %s", ifr->ifr_name);
2221 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2224 get_hw_addr_dlpi(name, hwaddr)
2226 struct sockaddr *hwaddr;
2229 int unit, iffd, adrlen;
2230 unsigned char *adrp;
2233 union DL_primitives prim;
2238 * We have to open the device and ask it for its hardware address.
2239 * First split apart the device name and unit.
2241 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2242 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2249 * Open the device and do a DLPI attach and phys_addr_req.
2251 iffd = open(ifdev, O_RDWR);
2253 error("Can't open %s: %m", ifdev);
2256 if (dlpi_attach(iffd, unit) < 0
2257 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2258 || dlpi_info_req(iffd) < 0
2259 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2264 adrlen = reply.prim.info_ack.dl_addr_length;
2265 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2267 #if DL_CURRENT_VERSION >= 2
2268 if (reply.prim.info_ack.dl_sap_length < 0)
2269 adrlen += reply.prim.info_ack.dl_sap_length;
2271 adrp += reply.prim.info_ack.dl_sap_length;
2274 hwaddr->sa_family = AF_UNSPEC;
2275 memcpy(hwaddr->sa_data, adrp, adrlen);
2280 * get_hw_addr - obtain the hardware address for a named interface.
2283 get_hw_addr(name, ina, hwaddr)
2286 struct sockaddr *hwaddr;
2288 /* New way - get the address by doing an arp request. */
2292 s = socket(AF_INET, SOCK_DGRAM, 0);
2295 memset(&req, 0, sizeof(req));
2296 req.arp_pa.sa_family = AF_INET;
2297 INET_ADDR(req.arp_pa) = ina;
2298 if (ioctl(s, SIOCGARP, &req) < 0) {
2299 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2302 *hwaddr = req.arp_ha;
2303 hwaddr->sa_family = AF_UNSPEC;
2309 dlpi_attach(fd, ppa)
2312 dl_attach_req_t req;
2315 req.dl_primitive = DL_ATTACH_REQ;
2317 buf.len = sizeof(req);
2318 buf.buf = (void *) &req;
2319 return putmsg(fd, &buf, NULL, RS_HIPRI);
2329 req.dl_primitive = DL_INFO_REQ;
2330 buf.len = sizeof(req);
2331 buf.buf = (void *) &req;
2332 return putmsg(fd, &buf, NULL, RS_HIPRI);
2336 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2337 union DL_primitives *reply;
2338 int fd, expected_prim, maxlen;
2345 * Use poll to wait for a message with a timeout.
2348 pfd.events = POLLIN | POLLPRI;
2350 n = poll(&pfd, 1, 1000);
2351 } while (n == -1 && errno == EINTR);
2358 buf.maxlen = maxlen;
2359 buf.buf = (void *) reply;
2361 if (getmsg(fd, &buf, NULL, &flags) < 0)
2364 if (buf.len < sizeof(ulong)) {
2366 dbglog("dlpi response short (len=%d)\n", buf.len);
2370 if (reply->dl_primitive == expected_prim)
2374 if (reply->dl_primitive == DL_ERROR_ACK) {
2375 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2376 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2377 reply->error_ack.dl_error_primitive);
2379 dbglog("dlpi unexpected response prim %x\n",
2380 reply->dl_primitive);
2388 * Return user specified netmask, modified by any mask we might determine
2389 * for address `addr' (in network byte order).
2390 * Here we scan through the system's list of interfaces, looking for
2391 * any non-point-to-point interfaces which might appear to be on the same
2392 * network as `addr'. If we find any, we OR in their netmask to the
2393 * user-specified netmask.
2399 u_int32_t mask, nmask, ina;
2400 struct ifreq *ifr, *ifend, ifreq;
2405 if (IN_CLASSA(addr)) /* determine network mask for address class */
2406 nmask = IN_CLASSA_NET;
2407 else if (IN_CLASSB(addr))
2408 nmask = IN_CLASSB_NET;
2410 nmask = IN_CLASSC_NET;
2411 /* class D nets are disallowed by bad_ip_adrs */
2412 mask = netmask | htonl(nmask);
2415 * Scan through the system's network interfaces.
2418 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2421 ifc.ifc_len = nif * sizeof(struct ifreq);
2422 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2423 if (ifc.ifc_buf == 0)
2425 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2426 warn("Couldn't get system interface list: %m");
2430 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2431 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2433 * Check the interface's internet address.
2435 if (ifr->ifr_addr.sa_family != AF_INET)
2437 ina = INET_ADDR(ifr->ifr_addr);
2438 if ((ntohl(ina) & nmask) != (addr & nmask))
2441 * Check that the interface is up, and not point-to-point or loopback.
2443 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2444 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2446 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2450 * Get its netmask and OR it into our mask.
2452 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2454 mask |= INET_ADDR(ifreq.ifr_addr);
2462 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2465 logwtmp(line, name, host)
2466 const char *line, *name, *host;
2468 static struct utmpx utmpx;
2472 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2473 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2474 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2475 utmpx.ut_pid = getpid();
2476 utmpx.ut_type = USER_PROCESS;
2478 utmpx.ut_type = DEAD_PROCESS;
2480 gettimeofday(&utmpx.ut_tv, NULL);
2481 updwtmpx("/var/adm/wtmpx", &utmpx);
2485 * get_host_seed - return the serial number of this machine.
2492 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2493 error("sysinfo: %m");
2496 return (int) strtoul(buf, NULL, 16);
2500 strioctl(fd, cmd, ptr, ilen, olen)
2501 int fd, cmd, ilen, olen;
2504 struct strioctl str;
2510 if (ioctl(fd, I_STR, &str) == -1)
2512 if (str.ic_len != olen)
2513 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2514 olen, str.ic_len, cmd);
2520 * lock - create a lock file for the named lock device
2523 #define LOCK_PREFIX "/var/spool/locks/LK."
2524 static char lock_file[40]; /* name of lock file created */
2534 if (stat(dev, &sbuf) < 0) {
2535 error("Can't get device number for %s: %m", dev);
2538 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2539 error("Can't lock %s: not a character device", dev);
2542 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2543 LOCK_PREFIX, major(sbuf.st_dev),
2544 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2546 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2548 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2549 /* Read the lock file to find out who has the device locked */
2550 n = read(fd, ascii_pid, 11);
2552 error("Can't read pid from lock file %s", lock_file);
2556 pid = atoi(ascii_pid);
2557 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2558 /* pid no longer exists - remove the lock file */
2559 if (unlink(lock_file) == 0) {
2561 notice("Removed stale lock on %s (pid %d)",
2565 warn("Couldn't remove stale lock on %s",
2568 notice("Device %s is locked by pid %d",
2573 error("Can't create lock file %s: %m", lock_file);
2578 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2579 write(fd, ascii_pid, 11);
2586 * unlock - remove our lockfile
2599 * cifroute - delete a route through the addresses given.
2602 cifroute(u, our, his)
2608 memset(&rt, 0, sizeof(rt));
2609 rt.rt_dst.sa_family = AF_INET;
2610 INET_ADDR(rt.rt_dst) = his;
2611 rt.rt_gateway.sa_family = AF_INET;
2612 INET_ADDR(rt.rt_gateway) = our;
2613 rt.rt_flags = RTF_HOST;
2615 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2616 error("Can't delete route: %m");
2624 * have_route_to - determine if the system has a route to the specified
2625 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2626 * `addr' is in network byte order.
2627 * For demand mode to work properly, we have to ignore routes
2628 * through our own interface.
2630 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2631 #define T_CURRENT MI_T_CURRENT
2639 int fd, r, flags, i;
2641 struct T_optmgmt_req req;
2645 struct T_optmgmt_ack ack;
2646 unsigned char space[64];
2649 struct strbuf cbuf, dbuf;
2651 mib2_ipRouteEntry_t routes[8];
2652 mib2_ipRouteEntry_t *rp;
2654 fd = open(mux_dev_name, O_RDWR);
2656 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2660 req.req.PRIM_type = T_OPTMGMT_REQ;
2661 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2662 req.req.OPT_length = sizeof(req.hdr);
2663 req.req.MGMT_flags = T_CURRENT;
2665 req.hdr.level = MIB2_IP;
2669 cbuf.buf = (char *) &req;
2670 cbuf.len = sizeof(req);
2672 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2673 warn("have_route_to: putmsg: %m");
2679 cbuf.buf = (char *) &ack;
2680 cbuf.maxlen = sizeof(ack);
2681 dbuf.buf = (char *) routes;
2682 dbuf.maxlen = sizeof(routes);
2684 r = getmsg(fd, &cbuf, &dbuf, &flags);
2686 warn("have_route_to: getmsg: %m");
2691 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2692 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2693 || ack.ack.MGMT_flags != T_SUCCESS
2694 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2695 dbglog("have_route_to: bad message len=%d prim=%d",
2696 cbuf.len, ack.ack.PRIM_type);
2701 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2702 if (rh->level == 0 && rh->name == 0)
2704 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2705 while (r == MOREDATA)
2706 r = getmsg(fd, NULL, &dbuf, &flags);
2711 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2712 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2713 if (rp->ipRouteMask != ~0) {
2714 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2715 rp->ipRouteDest, rp->ipRouteNextHop,
2717 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2718 && rp->ipRouteNextHop != remote_addr)
2724 r = getmsg(fd, NULL, &dbuf, &flags);
2735 * get_pty - get a pty master/slave pair and chown the slave side to
2736 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2739 get_pty(master_fdp, slave_fdp, slave_name, uid)
2747 struct termios tios;
2749 mfd = open("/dev/ptmx", O_RDWR);
2751 error("Couldn't open pty master: %m");
2755 pty_name = ptsname(mfd);
2756 if (pty_name == NULL) {
2757 error("Couldn't get name of pty slave");
2761 if (chown(pty_name, uid, -1) < 0)
2762 warn("Couldn't change owner of pty slave: %m");
2763 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2764 warn("Couldn't change permissions on pty slave: %m");
2765 if (unlockpt(mfd) < 0)
2766 warn("Couldn't unlock pty slave: %m");
2768 sfd = open(pty_name, O_RDWR);
2770 error("Couldn't open pty slave %s: %m", pty_name);
2774 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2775 warn("Couldn't push ptem module on pty slave: %m");
2777 dbglog("Using %s", pty_name);
2778 strlcpy(slave_name, pty_name, MAXPATHLEN);