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 1.11 2003/04/07 00:01:46 paulus Exp $"
106 #include <sys/termiox.h>
110 #include <sys/types.h>
111 #include <sys/ioccom.h>
112 #include <sys/stream.h>
113 #include <sys/stropts.h>
114 #include <sys/socket.h>
115 #include <sys/sockio.h>
116 #include <sys/sysmacros.h>
117 #include <sys/systeminfo.h>
118 #include <sys/dlpi.h>
119 #include <sys/stat.h>
120 #include <sys/mkdev.h>
122 #include <net/if_arp.h>
123 #include <net/route.h>
124 #include <net/ppp_defs.h>
125 #include <net/pppio.h>
126 #include <netinet/in.h>
128 #include <sys/tihdr.h>
129 #include <sys/tiuser.h>
130 #include <inet/common.h>
131 #include <inet/mib2.h>
132 #include <sys/ethernet.h>
141 #if !defined(PPP_DRV_NAME)
142 #define PPP_DRV_NAME "ppp"
143 #endif /* !defined(PPP_DRV_NAME) */
145 #if !defined(PPP_DEV_NAME)
146 #define PPP_DEV_NAME "/dev/" PPP_DRV_NAME
147 #endif /* !defined(PPP_DEV_NAME) */
149 #if !defined(AHDLC_MOD_NAME)
150 #define AHDLC_MOD_NAME "ppp_ahdl"
151 #endif /* !defined(AHDLC_MOD_NAME) */
153 #if !defined(COMP_MOD_NAME)
154 #define COMP_MOD_NAME "ppp_comp"
155 #endif /* !defined(COMP_MOD_NAME) */
157 #if !defined(IP_DEV_NAME)
158 #define IP_DEV_NAME "/dev/ip"
159 #endif /* !defined(IP_DEV_NAME) */
161 #if !defined(IP_MOD_NAME)
162 #define IP_MOD_NAME "ip"
163 #endif /* !defined(IP_MOD_NAME) */
165 #if !defined(UDP_DEV_NAME) && defined(SOL2)
166 #define UDP_DEV_NAME "/dev/udp"
167 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
169 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
170 #define UDP6_DEV_NAME "/dev/udp6"
171 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
173 static const char rcsid[] = RCSID;
177 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
178 * under. It is used in place of "/dev/ip" since STREAMS will not let
179 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
180 * driver at the bottom of the tunneling interfaces stream.
182 static char *mux_dev_name = UDP_DEV_NAME;
184 static char *mux_dev_name = IP_DEV_NAME;
187 static int fdmuxid = -1;
189 static int ipmuxid = -1;
191 #if defined(INET6) && defined(SOL2)
192 static int ip6fd; /* IP file descriptor */
193 static int ip6muxid = -1; /* Multiplexer file descriptor */
194 static int if6_is_up = 0; /* IPv6 interface has been marked up */
196 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
197 s->sin6_addr.s6_addr32[0] = htonl(as); \
198 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
199 s->sin6_family = AF_INET6; \
200 l.lifr_addr.ss_family = AF_INET6; \
201 l.lifr_addrlen = 10; \
202 l.lifr_addr = laddr; \
205 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
206 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
208 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
209 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
211 #endif /* defined(INET6) && defined(SOL2) */
213 #if defined(INET6) && defined(SOL2)
214 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
216 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
217 #define MAXIFS 256 /* Max # of interfaces */
218 #endif /* defined(INET6) && defined(SOL2) */
220 static int restore_term;
221 static struct termios inittermios;
223 static struct termiox inittermiox;
224 static int termiox_ok;
226 static struct winsize wsinfo; /* Initial window size info */
227 static pid_t tty_sid; /* original session ID for terminal */
229 extern u_char inpacket_buf[]; /* borrowed from main.c */
231 #define MAX_POLLFDS 32
232 static struct pollfd pollfds[MAX_POLLFDS];
233 static int n_pollfds;
235 static int link_mtu, link_mru;
238 static int tty_nmodules;
239 static char tty_modules[NMODULES][FMNAMESZ+1];
240 static int tty_npushed;
242 static int if_is_up; /* Interface has been marked up */
243 static u_int32_t remote_addr; /* IP address of peer */
244 static u_int32_t default_route_gateway; /* Gateway for default route added */
245 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
247 /* Prototypes for procedures local to this file. */
248 static int translate_speed __P((int));
249 static int baud_rate_of __P((int));
250 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
251 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
252 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
253 static int dlpi_attach __P((int, int));
254 static int dlpi_info_req __P((int));
255 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
256 static int strioctl __P((int, int, void *, int, int));
260 * sifppa - Sets interface ppa
262 * without setting the ppa, ip module will return EINVAL upon setting the
263 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
264 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
265 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
266 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
267 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
268 * is required because the ppp DLPI provider advertises itself as
269 * a DLPI style 2 type, which requires a point of attachment to be
270 * specified. The only way the user can specify a point of attachment
271 * is via SIOCSLIFNAME or IF_UNITSEL.
273 * Such changes in the behavior of ip module was made to meet new or
274 * evolving standards requirements.
282 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
286 #if defined(SOL2) && defined(INET6)
288 * get_first_ethernet - returns the first Ethernet interface name found in
289 * the system, or NULL if none is found
291 * NOTE: This is the lifreq version (Solaris 8 and above)
298 struct lifreq *plifreq;
300 int fd, num_ifs, i, found;
304 fd = socket(AF_INET, SOCK_DGRAM, 0);
310 * Find out how many interfaces are running
312 lifn.lifn_family = AF_UNSPEC;
313 lifn.lifn_flags = LIFC_NOXMIT;
314 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
316 error("could not determine number of interfaces: %m");
320 num_ifs = lifn.lifn_count;
321 req_size = num_ifs * sizeof(struct lifreq);
322 req = malloc(req_size);
325 error("out of memory");
330 * Get interface configuration info for all interfaces
332 lifc.lifc_family = AF_UNSPEC;
333 lifc.lifc_flags = LIFC_NOXMIT;
334 lifc.lifc_len = req_size;
336 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
339 error("SIOCGLIFCONF: %m");
344 * And traverse each interface to look specifically for the first
345 * occurence of an Ethernet interface which has been marked up
347 plifreq = lifc.lifc_req;
349 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
351 if (strchr(plifreq->lifr_name, ':') != NULL)
354 memset(&lifr, 0, sizeof(lifr));
355 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
356 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
359 error("SIOCGLIFFLAGS: %m");
362 fl = lifr.lifr_flags;
364 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
365 != (IFF_UP | IFF_BROADCAST))
375 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
376 return (char *)first_ether_name;
382 * get_first_ethernet - returns the first Ethernet interface name found in
383 * the system, or NULL if none is found
385 * NOTE: This is the ifreq version (before Solaris 8).
391 struct ifreq *pifreq;
393 int fd, num_ifs, i, found;
397 fd = socket(AF_INET, SOCK_DGRAM, 0);
403 * Find out how many interfaces are running
405 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
409 req_size = num_ifs * sizeof(struct ifreq);
410 req = malloc(req_size);
413 error("out of memory");
418 * Get interface configuration info for all interfaces
420 ifc.ifc_len = req_size;
422 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
425 error("SIOCGIFCONF: %m");
430 * And traverse each interface to look specifically for the first
431 * occurence of an Ethernet interface which has been marked up
433 pifreq = ifc.ifc_req;
435 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
437 if (strchr(pifreq->ifr_name, ':') != NULL)
440 memset(&ifr, 0, sizeof(ifr));
441 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
442 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
445 error("SIOCGIFFLAGS: %m");
450 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
451 != (IFF_UP | IFF_BROADCAST))
461 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
462 return (char *)first_ether_name;
466 #endif /* defined(SOL2) && defined(INET6) */
470 * get_if_hwaddr - get the hardware address for the specified
471 * network interface device.
474 get_if_hwaddr(u_char *addr, char *if_name)
476 struct sockaddr s_eth_addr;
477 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
483 * Send DL_INFO_REQ to the driver to solicit its MAC address
485 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
486 error("could not obtain hardware address for %s", if_name);
490 memcpy(addr, eth_addr->ether_addr_octet, 6);
495 #if defined(SOL2) && defined(INET6)
497 * slifname - Sets interface ppa and flags
499 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
500 * be set in order to declare this as an IPv6 interface
510 memset(&lifr, 0, sizeof(lifr));
511 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
515 lifr.lifr_flags |= IFF_IPV6;
516 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
518 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
520 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
530 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
532 * walks the list of valid ethernet interfaces, and convert the first
533 * found 48-bit MAC address into EUI 64. caller also assumes that
534 * the system has a properly configured Ethernet interface for this
535 * function to return non-zero.
538 ether_to_eui64(eui64_t *p_eui64)
540 struct sockaddr s_eth_addr;
541 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
544 if ((if_name = get_first_ethernet()) == NULL) {
545 error("no persistent id can be found");
550 * Send DL_INFO_REQ to the driver to solicit its MAC address
552 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
553 error("could not obtain hardware address for %s", if_name);
558 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
560 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
561 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
562 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
563 p_eui64->e8[3] = 0xFF;
564 p_eui64->e8[4] = 0xFE;
565 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
566 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
567 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
571 #endif /* defined(SOL2) && defined(INET6) */
574 * sys_init - System-dependent initialization.
581 #if defined(INET6) && defined(SOL2)
584 #endif /* defined(INET6) && defined(SOL2) */
587 union DL_primitives prim;
590 #endif /* !defined(SOL2) */
592 ipfd = open(mux_dev_name, O_RDWR, 0);
594 fatal("Couldn't open IP device: %m");
596 #if defined(INET6) && defined(SOL2)
597 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
599 fatal("Couldn't open IP device (2): %m");
600 #endif /* defined(INET6) && defined(SOL2) */
602 if (default_device && !notty)
603 tty_sid = getsid((pid_t)0);
605 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
607 fatal("Can't open %s: %m", PPP_DEV_NAME);
608 if (kdebugflag & 1) {
609 x = PPPDBG_LOG + PPPDBG_DRIVER;
610 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
613 /* Assign a new PPA and get its unit number. */
614 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
615 fatal("Can't create new PPP interface: %m");
619 * Since sys_init() is called prior to ifname being set in main(),
620 * we need to get the ifname now, otherwise slifname(), and others,
621 * will fail, or maybe, I should move them to a later point ?
622 * <adi.masputra@sun.com>
624 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
625 #endif /* defined(SOL2) */
627 * Open the ppp device again and link it under the ip multiplexor.
628 * IP will assign a unit number which hopefully is the same as ifunit.
629 * I don't know any way to be certain they will be the same. :-(
631 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
633 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
634 if (kdebugflag & 1) {
635 x = PPPDBG_LOG + PPPDBG_DRIVER;
636 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
639 #if defined(INET6) && defined(SOL2)
640 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
643 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
645 if (kdebugflag & 1) {
646 x = PPPDBG_LOG + PPPDBG_DRIVER;
647 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
649 #endif /* defined(INET6) && defined(SOL2) */
652 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
656 #endif /* defined(INET6) */
657 fatal("Can't push IP module: %m");
661 * Assign ppa according to the unit number returned by ppp device
662 * after plumbing is completed above.
664 if (sifppa(ifd, ifunit) < 0) {
668 #endif /* defined(INET6) */
669 fatal("Can't set ppa for unit %d: %m", ifunit);
674 * An IPv6 interface is created anyway, even when the user does not
675 * explicitly enable it. Note that the interface will be marked
676 * IPv6 during slifname().
678 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
681 fatal("Can't push IP module (2): %m");
685 * Assign ppa according to the unit number returned by ppp device
686 * after plumbing is completed above. In addition, mark the interface
687 * as an IPv6 interface.
689 if (slifname(i6fd, ifunit) < 0) {
692 fatal("Can't set ifname for unit %d: %m", ifunit);
694 #endif /* defined(INET6) */
696 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
701 #endif /* defined(INET6) */
702 fatal("Can't I_PLINK PPP device to IP: %m");
705 memset(&ifr, 0, sizeof(ifr));
706 sprintf(ifr.ifr_name, "%s", ifname);
707 ifr.ifr_ip_muxid = ipmuxid;
710 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
711 * This is so that an arbitrary module can be inserted, or deleted,
712 * between ip module and the device driver without tearing down the
713 * existing stream. Such feature requires the mux ids, which is set
714 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
716 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
717 ioctl(ipfd, I_PUNLINK, ipmuxid);
720 #endif /* defined(INET6) */
721 fatal("SIOCSIFMUXID: %m");
724 #else /* else if !defined(SOL2) */
726 if (dlpi_attach(ifd, ifunit) < 0 ||
727 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
729 fatal("Can't attach to ppp%d: %m", ifunit);
732 ipmuxid = ioctl(ipfd, I_LINK, ifd);
735 fatal("Can't link PPP device to IP: %m");
736 #endif /* defined(SOL2) */
738 #if defined(INET6) && defined(SOL2)
739 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
742 ioctl(ipfd, I_PUNLINK, ipmuxid);
743 fatal("Can't I_PLINK PPP device to IP (2): %m");
746 memset(&lifr, 0, sizeof(lifr));
747 sprintf(lifr.lifr_name, "%s", ifname);
748 lifr.lifr_ip_muxid = ip6muxid;
751 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
753 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
754 ioctl(ipfd, I_PUNLINK, ipmuxid);
755 ioctl(ip6fd, I_PUNLINK, ip6muxid);
756 fatal("Can't link PPP device to IP (2): %m");
758 #endif /* defined(INET6) && defined(SOL2) */
761 /* Set the interface name for the link. */
762 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
763 ifr.ifr_metric = ipmuxid;
764 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
765 fatal("Can't set interface name %s: %m", ifr.ifr_name);
766 #endif /* !defined(SOL2) */
772 * sys_cleanup - restore any system state we modified before exiting:
773 * mark the interface down, delete default route and/or proxy arp entry.
774 * This should call die() because it's called from die().
783 #endif /* defined(INET6) */
784 #endif /* defined(SOL2) */
786 #if defined(SOL2) && defined(INET6)
789 #endif /* defined(SOL2) && defined(INET6) */
792 if (default_route_gateway)
793 cifdefaultroute(0, default_route_gateway, default_route_gateway);
795 cifproxyarp(0, proxy_arp_addr);
798 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
799 * unlink and re-link the modules, causing the muxid to change.
801 memset(&ifr, 0, sizeof(ifr));
802 sprintf(ifr.ifr_name, "%s", ifname);
803 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
804 error("SIOCGIFFLAGS: %m");
808 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
809 error("SIOCGIFMUXID: %m");
813 ipmuxid = ifr.ifr_ip_muxid;
815 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
816 error("Can't I_PUNLINK PPP from IP: %m");
821 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
822 * unlink and re-link the modules, causing the muxid to change.
824 memset(&lifr, 0, sizeof(lifr));
825 sprintf(lifr.lifr_name, "%s", ifname);
826 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
827 error("SIOCGLIFFLAGS: %m");
831 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
832 error("SIOCGLIFMUXID: %m");
836 ip6muxid = lifr.lifr_ip_muxid;
838 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
839 error("Can't I_PUNLINK PPP from IP (2): %m");
841 #endif /* defined(INET6) */
842 #endif /* defined(SOL2) */
846 * sys_close - Clean up in a child process before execing.
852 #if defined(INET6) && defined(SOL2)
854 #endif /* defined(INET6) && defined(SOL2) */
860 * sys_check_options - check the options that the user specified
870 * daemon - Detach us from controlling terminal session.
873 daemon(nochdir, noclose)
874 int nochdir, noclose;
878 if ((pid = fork()) < 0)
881 exit(0); /* parent dies */
886 fclose(stdin); /* don't need stdin, stdout, stderr */
895 * ppp_available - check whether the system has any ppp interfaces
902 return stat(PPP_DEV_NAME, &buf) >= 0;
906 * any_compressions - see if compression is enabled or not
908 * In the STREAMS implementation of kernel-portion pppd,
909 * the comp STREAMS module performs the ACFC, PFC, as well
910 * CCP and VJ compressions. However, if the user has explicitly
911 * declare to not enable them from the command line, there is
912 * no point of having the comp module be pushed on the stream.
917 if ((!lcp_wantoptions[0].neg_accompression) &&
918 (!lcp_wantoptions[0].neg_pcompression) &&
919 (!ccp_protent.enabled_flag) &&
920 (!ipcp_wantoptions[0].neg_vj)) {
927 * tty_establish_ppp - Turn the serial port into a ppp interface.
930 tty_establish_ppp(fd)
935 /* Pop any existing modules off the tty stream. */
937 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
938 || strcmp(tty_modules[i], "ptem") == 0
939 || ioctl(fd, I_POP, 0) < 0)
943 /* Push the async hdlc module and the compressor module. */
947 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
948 error("Couldn't push PPP Async HDLC module: %m");
953 if (kdebugflag & 4) {
954 i = PPPDBG_LOG + PPPDBG_AHDLC;
955 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
958 * There's no need to push comp module if we don't intend
959 * to compress anything
961 if (any_compressions()) {
962 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
963 error("Couldn't push PPP compression module: %m");
968 if (kdebugflag & 2) {
970 if (any_compressions())
972 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
975 /* Link the serial port under the PPP multiplexor. */
976 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
977 error("Can't link tty to PPP mux: %m");
985 * tty_disestablish_ppp - Restore the serial port to normal operation.
986 * It attempts to reconstruct the stream with the previously popped
987 * modules. This shouldn't call die() because it's called from die().
990 tty_disestablish_ppp(fd)
996 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
998 error("Can't unlink tty from PPP mux: %m");
1003 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
1005 for (i = tty_nmodules - 1; i >= 0; --i)
1006 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
1007 error("Couldn't restore tty module %s: %m",
1010 if (hungup && default_device && tty_sid > 0) {
1012 * If we have received a hangup, we need to send a SIGHUP
1013 * to the terminal's controlling process. The reason is
1014 * that the original stream head for the terminal hasn't
1015 * seen the M_HANGUP message (it went up through the ppp
1016 * driver to the stream head for our fd to /dev/ppp).
1018 kill(tty_sid, SIGHUP);
1024 * Check whether the link seems not to be 8-bit clean.
1032 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1037 s = "bit 7 set to 1";
1040 s = "bit 7 set to 0";
1050 warn("Serial link is not 8-bit clean:");
1051 warn("All received characters had %s", s);
1056 * List of valid speeds.
1059 int speed_int, speed_val;
1128 { 115200, B115200 },
1131 { 153600, B153600 },
1134 { 230400, B230400 },
1137 { 307200, B307200 },
1140 { 460800, B460800 },
1146 * Translate from bits/second to a speed_t.
1149 translate_speed(bps)
1152 struct speed *speedp;
1156 for (speedp = speeds; speedp->speed_int; speedp++)
1157 if (bps == speedp->speed_int)
1158 return speedp->speed_val;
1159 warn("speed %d not supported", bps);
1164 * Translate from a speed_t to bits/second.
1170 struct speed *speedp;
1174 for (speedp = speeds; speedp->speed_int; speedp++)
1175 if (speed == speedp->speed_val)
1176 return speedp->speed_int;
1181 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1182 * at the requested speed, etc. If `local' is true, set CLOCAL
1183 * regardless of whether the modem option was specified.
1186 set_up_tty(fd, local)
1190 struct termios tios;
1191 #if !defined (CRTSCTS)
1192 struct termiox tiox;
1195 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1196 fatal("tcgetattr: %m");
1200 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1202 if (errno != ENOTTY)
1203 error("TCGETX: %m");
1207 if (!restore_term) {
1213 ioctl(fd, TIOCGWINSZ, &wsinfo);
1216 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1219 tios.c_cflag |= CRTSCTS;
1220 else if (crtscts < 0)
1221 tios.c_cflag &= ~CRTSCTS;
1223 if (crtscts != 0 && !termiox_ok) {
1224 error("Can't set RTS/CTS flow control");
1225 } else if (crtscts > 0) {
1226 tiox.x_hflag |= RTSXOFF|CTSXON;
1227 } else if (crtscts < 0) {
1228 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1232 tios.c_cflag |= CS8 | CREAD | HUPCL;
1233 if (local || !modem)
1234 tios.c_cflag |= CLOCAL;
1235 tios.c_iflag = IGNBRK | IGNPAR;
1238 tios.c_cc[VMIN] = 1;
1239 tios.c_cc[VTIME] = 0;
1241 if (crtscts == -2) {
1242 tios.c_iflag |= IXON | IXOFF;
1243 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1244 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1247 speed = translate_speed(inspeed);
1249 cfsetospeed(&tios, speed);
1250 cfsetispeed(&tios, speed);
1252 speed = cfgetospeed(&tios);
1254 * We can't proceed if the serial port speed is 0,
1255 * since that implies that the serial port is disabled.
1257 if ((speed == B0) && !sync_serial)
1258 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1261 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1262 fatal("tcsetattr: %m");
1265 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1266 error("TCSETXF: %m");
1270 baud_rate = inspeed = baud_rate_of(speed);
1276 * restore_tty - restore the terminal to the saved settings.
1283 if (!default_device) {
1285 * Turn off echoing, because otherwise we can get into
1286 * a loop with the tty and the modem echoing to each other.
1287 * We presume we are the sole user of this tty device, so
1288 * when we close it, it will revert to its defaults anyway.
1290 inittermios.c_lflag &= ~(ECHO | ECHONL);
1292 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1293 if (!hungup && errno != ENXIO)
1294 warn("tcsetattr: %m");
1296 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1297 if (!hungup && errno != ENXIO)
1298 error("TCSETXF: %m");
1302 ioctl(fd, TIOCSWINSZ, &wsinfo);
1308 * setdtr - control the DTR line on the serial port.
1309 * This is called from die(), so it shouldn't call die().
1315 int modembits = TIOCM_DTR;
1317 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1321 * open_loopback - open the device we use for getting packets
1322 * in demand mode. Under Solaris 2, we use our existing fd
1323 * to the ppp driver.
1332 * output - Output PPP packet.
1335 output(unit, p, len)
1344 dump_packet("sent", p, len);
1345 if (snoop_send_hook) snoop_send_hook(p, len);
1348 data.buf = (caddr_t) p;
1350 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1351 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1353 error("Couldn't send packet: %m");
1357 pfd.events = POLLOUT;
1358 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1364 * wait_input - wait until there is data available,
1365 * for the length of time specified by *timo (indefinite
1370 struct timeval *timo;
1374 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1375 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1380 * add_fd - add an fd to the set that wait_input waits for.
1387 for (n = 0; n < n_pollfds; ++n)
1388 if (pollfds[n].fd == fd)
1390 if (n_pollfds < MAX_POLLFDS) {
1391 pollfds[n_pollfds].fd = fd;
1392 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1395 error("Too many inputs!");
1399 * remove_fd - remove an fd from the set that wait_input waits for.
1406 for (n = 0; n < n_pollfds; ++n) {
1407 if (pollfds[n].fd == fd) {
1408 while (++n < n_pollfds)
1409 pollfds[n-1] = pollfds[n];
1418 * wait_loop_output - wait until there is data available on the
1419 * loopback, for the length of time specified by *timo (indefinite
1423 wait_loop_output(timo)
1424 struct timeval *timo;
1430 * wait_time - wait for a given length of time or until a
1431 * signal is received.
1435 struct timeval *timo;
1439 n = select(0, NULL, NULL, NULL, timo);
1440 if (n < 0 && errno != EINTR)
1441 fatal("select: %m");
1447 * read_packet - get a PPP packet from the serial device.
1453 struct strbuf ctrl, data;
1455 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1458 data.maxlen = PPP_MRU + PPP_HDRLEN;
1459 data.buf = (caddr_t) buf;
1460 ctrl.maxlen = sizeof(ctrlbuf);
1461 ctrl.buf = (caddr_t) ctrlbuf;
1463 len = getmsg(pppfd, &ctrl, &data, &flags);
1465 if (errno == EAGAIN || errno == EINTR)
1467 fatal("Error reading packet: %m");
1474 * Got a M_PROTO or M_PCPROTO message. Interpret it
1475 * as a DLPI primitive??
1478 dbglog("got dlpi prim 0x%x, len=%d",
1479 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1485 * get_loop_output - get outgoing packets from the ppp device,
1486 * and detect when we want to bring the real link up.
1487 * Return value is 1 if we need to bring up the link, 0 otherwise.
1495 while ((len = read_packet(inpacket_buf)) > 0) {
1496 if (loop_frame(inpacket_buf, len))
1503 * netif_set_mtu - set the MTU on the PPP network interface.
1506 netif_set_mtu(unit, mtu)
1510 #if defined(INET6) && defined(SOL2)
1513 #endif /* defined(INET6) && defined(SOL2) */
1515 memset(&ifr, 0, sizeof(ifr));
1516 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1517 ifr.ifr_metric = link_mtu;
1518 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1519 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1522 #if defined(INET6) && defined(SOL2)
1523 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1525 error("Couldn't open IPv6 socket: %m");
1527 memset(&lifr, 0, sizeof(lifr));
1528 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1529 lifr.lifr_mtu = link_mtu;
1530 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1532 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1535 #endif /* defined(INET6) && defined(SOL2) */
1539 * tty_send_config - configure the transmit characteristics of
1540 * the ppp interface.
1543 tty_send_config(mtu, asyncmap, pcomp, accomp)
1551 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1552 if (hungup && errno == ENXIO) {
1556 error("Couldn't set MTU: %m");
1560 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1561 error("Couldn't set transmit ACCM: %m");
1563 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1564 cf[1] = COMP_PROT | COMP_AC;
1565 if (any_compressions() &&
1566 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1567 error("Couldn't set prot/AC compression: %m");
1572 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1582 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1583 if (!hungup || errno != ENXIO)
1584 warn("Couldn't set extended ACCM: %m");
1589 * tty_recv_config - configure the receive-side characteristics of
1590 * the ppp interface.
1593 tty_recv_config(mru, asyncmap, pcomp, accomp)
1601 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1602 if (hungup && errno == ENXIO) {
1606 error("Couldn't set MRU: %m");
1610 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1611 error("Couldn't set receive ACCM: %m");
1613 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1614 cf[1] = DECOMP_PROT | DECOMP_AC;
1615 if (any_compressions() &&
1616 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1617 error("Couldn't set prot/AC decompression: %m");
1622 * ccp_test - ask kernel whether a given compression method
1623 * is acceptable for use.
1626 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1627 int unit, opt_len, for_transmit;
1630 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1631 opt_ptr, opt_len, 0) >= 0)
1633 return (errno == ENOSR)? 0: -1;
1637 * ccp_flags_set - inform kernel about the current state of CCP.
1640 ccp_flags_set(unit, isopen, isup)
1641 int unit, isopen, isup;
1645 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1646 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1647 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1648 if (!hungup || errno != ENXIO)
1649 error("Couldn't set kernel CCP state: %m");
1654 * get_idle_time - return how long the link has been idle.
1657 get_idle_time(u, ip)
1659 struct ppp_idle *ip;
1661 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1665 * get_ppp_stats - return statistics for the link.
1668 get_ppp_stats(u, stats)
1670 struct pppd_stats *stats;
1675 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1676 error("Couldn't get link statistics: %m");
1679 stats->bytes_in = s.p.ppp_ibytes;
1680 stats->bytes_out = s.p.ppp_obytes;
1681 stats->pkts_in = s.p.ppp_ipackets;
1682 stats->pkts_out = s.p.ppp_opackets;
1688 * set_filters - transfer the pass and active filters to the kernel.
1691 set_filters(pass, active)
1692 struct bpf_program *pass, *active;
1696 if (pass->bf_len > 0) {
1697 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1698 sizeof(struct bpf_program), 0) < 0) {
1699 error("Couldn't set pass-filter in kernel: %m");
1703 if (active->bf_len > 0) {
1704 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1705 sizeof(struct bpf_program), 0) < 0) {
1706 error("Couldn't set active-filter in kernel: %m");
1715 * ccp_fatal_error - returns 1 if decompression was disabled as a
1716 * result of an error detected after decompression of a packet,
1717 * 0 otherwise. This is necessary because of patent nonsense.
1720 ccp_fatal_error(unit)
1726 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1727 if (errno != ENXIO && errno != EINVAL)
1728 error("Couldn't get compression flags: %m");
1731 return cf[0] & CCP_FATALERROR;
1735 * sifvjcomp - config tcp header compression
1738 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1739 int u, vjcomp, xcidcomp, xmaxcid;
1745 maxcid[0] = xcidcomp;
1746 maxcid[1] = 15; /* XXX should be rmaxcid */
1747 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1748 error("Couldn't initialize VJ compression: %m");
1752 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1753 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1754 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1755 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1757 error("Couldn't enable VJ compression: %m");
1764 * sifup - Config the interface up and enable IP packets to pass.
1772 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1773 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1774 error("Couldn't mark interface up (get): %m");
1777 ifr.ifr_flags |= IFF_UP;
1778 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1779 error("Couldn't mark interface up (set): %m");
1787 * sifdown - Config the interface down and disable IP.
1797 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1798 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1799 error("Couldn't mark interface down (get): %m");
1802 ifr.ifr_flags &= ~IFF_UP;
1803 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1804 error("Couldn't mark interface down (set): %m");
1812 * sifnpmode - Set the mode for handling packets for a given NP.
1815 sifnpmode(u, proto, mode)
1823 npi[1] = (int) mode;
1824 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1825 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1831 #if defined(SOL2) && defined(INET6)
1833 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1842 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1847 memset(&lifr, 0, sizeof(lifr));
1848 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1849 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1854 lifr.lifr_flags |= IFF_UP;
1855 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1856 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1867 * sifdown - Config the IPv6 interface down and disable IPv6.
1876 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1880 memset(&lifr, 0, sizeof(lifr));
1881 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1882 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1887 lifr.lifr_flags &= ~IFF_UP;
1888 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1889 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1900 * sif6addr - Config the interface with an IPv6 link-local address
1908 struct sockaddr_storage laddr;
1909 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1912 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1916 memset(&lifr, 0, sizeof(lifr));
1917 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1920 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1921 * zero values, hence the interface token came to be zero too,
1922 * and without this, in.ndpd will complain
1924 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1925 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1931 * Set the interface address and destination address
1933 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1934 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1939 memset(&lifr, 0, sizeof(lifr));
1940 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1941 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1942 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1951 * cif6addr - Remove the IPv6 address from interface
1961 #endif /* defined(SOL2) && defined(INET6) */
1964 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1967 * sifaddr - Config the interface IP addresses and netmask.
1977 memset(&ifr, 0, sizeof(ifr));
1978 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1979 ifr.ifr_addr.sa_family = AF_INET;
1980 INET_ADDR(ifr.ifr_addr) = m;
1981 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1982 error("Couldn't set IP netmask: %m");
1985 ifr.ifr_addr.sa_family = AF_INET;
1986 INET_ADDR(ifr.ifr_addr) = o;
1987 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1988 error("Couldn't set local IP address: %m");
1993 * On some systems, we have to explicitly set the point-to-point
1994 * flag bit before we can set a destination address.
1996 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
1997 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1998 ifr.ifr_flags |= IFF_POINTOPOINT;
1999 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2000 error("Couldn't mark interface pt-to-pt: %m");
2004 ifr.ifr_dstaddr.sa_family = AF_INET;
2005 INET_ADDR(ifr.ifr_dstaddr) = h;
2006 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2007 error("Couldn't set remote IP address: %m");
2016 * cifaddr - Clear the interface IP addresses, and delete routes
2017 * through the interface if possible.
2024 #if defined(__USLC__) /* was: #if 0 */
2025 cifroute(unit, ouraddr, hisaddr);
2027 notice("Removing ppp interface unit");
2028 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2029 error("Can't remove ppp interface unit: %m");
2040 * sifdefaultroute - assign a default route through the address given.
2043 sifdefaultroute(u, l, g)
2049 #if defined(__USLC__)
2050 g = l; /* use the local address as gateway */
2052 memset(&rt, 0, sizeof(rt));
2053 rt.rt_dst.sa_family = AF_INET;
2054 INET_ADDR(rt.rt_dst) = 0;
2055 rt.rt_gateway.sa_family = AF_INET;
2056 INET_ADDR(rt.rt_gateway) = g;
2057 rt.rt_flags = RTF_GATEWAY;
2059 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2060 error("Can't add default route: %m");
2064 default_route_gateway = g;
2069 * cifdefaultroute - delete a default route through the address given.
2072 cifdefaultroute(u, l, g)
2078 #if defined(__USLC__)
2079 g = l; /* use the local address as gateway */
2081 memset(&rt, 0, sizeof(rt));
2082 rt.rt_dst.sa_family = AF_INET;
2083 INET_ADDR(rt.rt_dst) = 0;
2084 rt.rt_gateway.sa_family = AF_INET;
2085 INET_ADDR(rt.rt_gateway) = g;
2086 rt.rt_flags = RTF_GATEWAY;
2088 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2089 error("Can't delete default route: %m");
2093 default_route_gateway = 0;
2098 * sifproxyarp - Make a proxy ARP entry for the peer.
2101 sifproxyarp(unit, hisaddr)
2105 struct arpreq arpreq;
2107 memset(&arpreq, 0, sizeof(arpreq));
2108 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2111 arpreq.arp_pa.sa_family = AF_INET;
2112 INET_ADDR(arpreq.arp_pa) = hisaddr;
2113 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2114 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2115 error("Couldn't set proxy ARP entry: %m");
2119 proxy_arp_addr = hisaddr;
2124 * cifproxyarp - Delete the proxy ARP entry for the peer.
2127 cifproxyarp(unit, hisaddr)
2131 struct arpreq arpreq;
2133 memset(&arpreq, 0, sizeof(arpreq));
2134 arpreq.arp_pa.sa_family = AF_INET;
2135 INET_ADDR(arpreq.arp_pa) = hisaddr;
2136 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2137 error("Couldn't delete proxy ARP entry: %m");
2146 * get_ether_addr - get the hardware address of an interface on the
2147 * the same subnet as ipaddr.
2152 get_ether_addr(ipaddr, hwaddr)
2154 struct sockaddr *hwaddr;
2156 struct ifreq *ifr, *ifend, ifreq;
2159 u_int32_t ina, mask;
2162 * Scan through the system's network interfaces.
2165 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2168 ifc.ifc_len = nif * sizeof(struct ifreq);
2169 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2170 if (ifc.ifc_buf == 0)
2172 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2173 warn("Couldn't get system interface list: %m");
2177 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2178 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2179 if (ifr->ifr_addr.sa_family != AF_INET)
2182 * Check that the interface is up, and not point-to-point or loopback.
2184 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2185 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2187 if ((ifreq.ifr_flags &
2188 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2189 != (IFF_UP|IFF_BROADCAST))
2192 * Get its netmask and check that it's on the right subnet.
2194 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2196 ina = INET_ADDR(ifr->ifr_addr);
2197 mask = INET_ADDR(ifreq.ifr_addr);
2198 if ((ipaddr & mask) == (ina & mask))
2203 warn("No suitable interface found for proxy ARP");
2208 info("found interface %s for proxy ARP", ifr->ifr_name);
2209 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2210 error("Couldn't get hardware address for %s", ifr->ifr_name);
2220 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2223 get_hw_addr_dlpi(name, hwaddr)
2225 struct sockaddr *hwaddr;
2228 int unit, iffd, adrlen;
2229 unsigned char *adrp;
2232 union DL_primitives prim;
2237 * We have to open the device and ask it for its hardware address.
2238 * First split apart the device name and unit.
2240 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2241 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2248 * Open the device and do a DLPI attach and phys_addr_req.
2250 iffd = open(ifdev, O_RDWR);
2252 error("Can't open %s: %m", ifdev);
2255 if (dlpi_attach(iffd, unit) < 0
2256 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2257 || dlpi_info_req(iffd) < 0
2258 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2263 adrlen = reply.prim.info_ack.dl_addr_length;
2264 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2266 #if DL_CURRENT_VERSION >= 2
2267 if (reply.prim.info_ack.dl_sap_length < 0)
2268 adrlen += reply.prim.info_ack.dl_sap_length;
2270 adrp += reply.prim.info_ack.dl_sap_length;
2273 hwaddr->sa_family = AF_UNSPEC;
2274 memcpy(hwaddr->sa_data, adrp, adrlen);
2279 * get_hw_addr - obtain the hardware address for a named interface.
2282 get_hw_addr(name, ina, hwaddr)
2285 struct sockaddr *hwaddr;
2287 /* New way - get the address by doing an arp request. */
2291 s = socket(AF_INET, SOCK_DGRAM, 0);
2294 memset(&req, 0, sizeof(req));
2295 req.arp_pa.sa_family = AF_INET;
2296 INET_ADDR(req.arp_pa) = ina;
2297 if (ioctl(s, SIOCGARP, &req) < 0) {
2298 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2301 *hwaddr = req.arp_ha;
2302 hwaddr->sa_family = AF_UNSPEC;
2308 dlpi_attach(fd, ppa)
2311 dl_attach_req_t req;
2314 req.dl_primitive = DL_ATTACH_REQ;
2316 buf.len = sizeof(req);
2317 buf.buf = (void *) &req;
2318 return putmsg(fd, &buf, NULL, RS_HIPRI);
2328 req.dl_primitive = DL_INFO_REQ;
2329 buf.len = sizeof(req);
2330 buf.buf = (void *) &req;
2331 return putmsg(fd, &buf, NULL, RS_HIPRI);
2335 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2336 union DL_primitives *reply;
2337 int fd, expected_prim, maxlen;
2344 * Use poll to wait for a message with a timeout.
2347 pfd.events = POLLIN | POLLPRI;
2349 n = poll(&pfd, 1, 1000);
2350 } while (n == -1 && errno == EINTR);
2357 buf.maxlen = maxlen;
2358 buf.buf = (void *) reply;
2360 if (getmsg(fd, &buf, NULL, &flags) < 0)
2363 if (buf.len < sizeof(ulong)) {
2365 dbglog("dlpi response short (len=%d)\n", buf.len);
2369 if (reply->dl_primitive == expected_prim)
2373 if (reply->dl_primitive == DL_ERROR_ACK) {
2374 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2375 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2376 reply->error_ack.dl_error_primitive);
2378 dbglog("dlpi unexpected response prim %x\n",
2379 reply->dl_primitive);
2387 * Return user specified netmask, modified by any mask we might determine
2388 * for address `addr' (in network byte order).
2389 * Here we scan through the system's list of interfaces, looking for
2390 * any non-point-to-point interfaces which might appear to be on the same
2391 * network as `addr'. If we find any, we OR in their netmask to the
2392 * user-specified netmask.
2398 u_int32_t mask, nmask, ina;
2399 struct ifreq *ifr, *ifend, ifreq;
2404 if (IN_CLASSA(addr)) /* determine network mask for address class */
2405 nmask = IN_CLASSA_NET;
2406 else if (IN_CLASSB(addr))
2407 nmask = IN_CLASSB_NET;
2409 nmask = IN_CLASSC_NET;
2410 /* class D nets are disallowed by bad_ip_adrs */
2411 mask = netmask | htonl(nmask);
2414 * Scan through the system's network interfaces.
2417 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2420 ifc.ifc_len = nif * sizeof(struct ifreq);
2421 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2422 if (ifc.ifc_buf == 0)
2424 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2425 warn("Couldn't get system interface list: %m");
2429 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2430 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2432 * Check the interface's internet address.
2434 if (ifr->ifr_addr.sa_family != AF_INET)
2436 ina = INET_ADDR(ifr->ifr_addr);
2437 if ((ntohl(ina) & nmask) != (addr & nmask))
2440 * Check that the interface is up, and not point-to-point or loopback.
2442 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2443 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2445 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2449 * Get its netmask and OR it into our mask.
2451 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2453 mask |= INET_ADDR(ifreq.ifr_addr);
2461 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2464 logwtmp(line, name, host)
2465 const char *line, *name, *host;
2467 static struct utmpx utmpx;
2471 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2472 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2473 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2474 utmpx.ut_pid = getpid();
2475 utmpx.ut_type = USER_PROCESS;
2477 utmpx.ut_type = DEAD_PROCESS;
2479 gettimeofday(&utmpx.ut_tv, NULL);
2480 updwtmpx("/var/adm/wtmpx", &utmpx);
2484 * get_host_seed - return the serial number of this machine.
2491 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2492 error("sysinfo: %m");
2495 return (int) strtoul(buf, NULL, 16);
2499 strioctl(fd, cmd, ptr, ilen, olen)
2500 int fd, cmd, ilen, olen;
2503 struct strioctl str;
2509 if (ioctl(fd, I_STR, &str) == -1)
2511 if (str.ic_len != olen)
2512 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2513 olen, str.ic_len, cmd);
2519 * lock - create a lock file for the named lock device
2522 #define LOCK_PREFIX "/var/spool/locks/LK."
2523 static char lock_file[40]; /* name of lock file created */
2533 if (stat(dev, &sbuf) < 0) {
2534 error("Can't get device number for %s: %m", dev);
2537 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2538 error("Can't lock %s: not a character device", dev);
2541 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2542 LOCK_PREFIX, major(sbuf.st_dev),
2543 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2545 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2547 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2548 /* Read the lock file to find out who has the device locked */
2549 n = read(fd, ascii_pid, 11);
2551 error("Can't read pid from lock file %s", lock_file);
2555 pid = atoi(ascii_pid);
2556 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2557 /* pid no longer exists - remove the lock file */
2558 if (unlink(lock_file) == 0) {
2560 notice("Removed stale lock on %s (pid %d)",
2564 warn("Couldn't remove stale lock on %s",
2567 notice("Device %s is locked by pid %d",
2572 error("Can't create lock file %s: %m", lock_file);
2577 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2578 write(fd, ascii_pid, 11);
2585 * unlock - remove our lockfile
2598 * cifroute - delete a route through the addresses given.
2601 cifroute(u, our, his)
2607 memset(&rt, 0, sizeof(rt));
2608 rt.rt_dst.sa_family = AF_INET;
2609 INET_ADDR(rt.rt_dst) = his;
2610 rt.rt_gateway.sa_family = AF_INET;
2611 INET_ADDR(rt.rt_gateway) = our;
2612 rt.rt_flags = RTF_HOST;
2614 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2615 error("Can't delete route: %m");
2623 * have_route_to - determine if the system has a route to the specified
2624 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2625 * `addr' is in network byte order.
2626 * For demand mode to work properly, we have to ignore routes
2627 * through our own interface.
2629 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2630 #define T_CURRENT MI_T_CURRENT
2638 int fd, r, flags, i;
2640 struct T_optmgmt_req req;
2644 struct T_optmgmt_ack ack;
2645 unsigned char space[64];
2648 struct strbuf cbuf, dbuf;
2650 mib2_ipRouteEntry_t routes[8];
2651 mib2_ipRouteEntry_t *rp;
2653 fd = open(mux_dev_name, O_RDWR);
2655 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2659 req.req.PRIM_type = T_OPTMGMT_REQ;
2660 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2661 req.req.OPT_length = sizeof(req.hdr);
2662 req.req.MGMT_flags = T_CURRENT;
2664 req.hdr.level = MIB2_IP;
2668 cbuf.buf = (char *) &req;
2669 cbuf.len = sizeof(req);
2671 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2672 warn("have_route_to: putmsg: %m");
2678 cbuf.buf = (char *) &ack;
2679 cbuf.maxlen = sizeof(ack);
2680 dbuf.buf = (char *) routes;
2681 dbuf.maxlen = sizeof(routes);
2683 r = getmsg(fd, &cbuf, &dbuf, &flags);
2685 warn("have_route_to: getmsg: %m");
2690 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2691 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2692 || ack.ack.MGMT_flags != T_SUCCESS
2693 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2694 dbglog("have_route_to: bad message len=%d prim=%d",
2695 cbuf.len, ack.ack.PRIM_type);
2700 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2701 if (rh->level == 0 && rh->name == 0)
2703 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2704 while (r == MOREDATA)
2705 r = getmsg(fd, NULL, &dbuf, &flags);
2710 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2711 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2712 if (rp->ipRouteMask != ~0) {
2713 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2714 rp->ipRouteDest, rp->ipRouteNextHop,
2716 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2717 && rp->ipRouteNextHop != remote_addr)
2723 r = getmsg(fd, NULL, &dbuf, &flags);
2734 * get_pty - get a pty master/slave pair and chown the slave side to
2735 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2738 get_pty(master_fdp, slave_fdp, slave_name, uid)
2746 struct termios tios;
2748 mfd = open("/dev/ptmx", O_RDWR);
2750 error("Couldn't open pty master: %m");
2754 pty_name = ptsname(mfd);
2755 if (pty_name == NULL) {
2756 error("Couldn't get name of pty slave");
2760 if (chown(pty_name, uid, -1) < 0)
2761 warn("Couldn't change owner of pty slave: %m");
2762 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2763 warn("Couldn't change permissions on pty slave: %m");
2764 if (unlockpt(mfd) < 0)
2765 warn("Couldn't unlock pty slave: %m");
2767 sfd = open(pty_name, O_RDWR);
2769 error("Couldn't open pty slave %s: %m", pty_name);
2773 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2774 warn("Couldn't push ptem module on pty slave: %m");
2776 dbglog("Using %s", pty_name);
2777 strlcpy(slave_name, pty_name, MAXPATHLEN);