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 1.10 2003/03/03 05:11:46 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)
1552 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1553 if (hungup && errno == ENXIO)
1555 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");
1565 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1566 cf[1] = COMP_PROT | COMP_AC;
1567 if (any_compressions() &&
1568 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1569 error("Couldn't set prot/AC compression: %m");
1577 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1587 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1588 if (!hungup || errno != ENXIO)
1589 warn("Couldn't set extended ACCM: %m");
1594 * tty_recv_config - configure the receive-side characteristics of
1595 * the ppp interface.
1598 tty_recv_config(mru, asyncmap, pcomp, accomp)
1607 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1608 if (hungup && errno == ENXIO)
1610 error("Couldn't set MRU: %m");
1615 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0) {
1616 error("Couldn't set receive ACCM: %m");
1620 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1621 cf[1] = DECOMP_PROT | DECOMP_AC;
1622 if (any_compressions() &&
1623 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1624 error("Couldn't set prot/AC decompression: %m");
1632 * ccp_test - ask kernel whether a given compression method
1633 * is acceptable for use.
1636 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1637 int unit, opt_len, for_transmit;
1640 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1641 opt_ptr, opt_len, 0) >= 0)
1643 return (errno == ENOSR)? 0: -1;
1647 * ccp_flags_set - inform kernel about the current state of CCP.
1650 ccp_flags_set(unit, isopen, isup)
1651 int unit, isopen, isup;
1655 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1656 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1657 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1658 if (!hungup || errno != ENXIO)
1659 error("Couldn't set kernel CCP state: %m");
1664 * get_idle_time - return how long the link has been idle.
1667 get_idle_time(u, ip)
1669 struct ppp_idle *ip;
1671 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1675 * get_ppp_stats - return statistics for the link.
1678 get_ppp_stats(u, stats)
1680 struct pppd_stats *stats;
1685 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1686 error("Couldn't get link statistics: %m");
1689 stats->bytes_in = s.p.ppp_ibytes;
1690 stats->bytes_out = s.p.ppp_obytes;
1691 stats->pkts_in = s.p.ppp_ipackets;
1692 stats->pkts_out = s.p.ppp_opackets;
1698 * set_filters - transfer the pass and active filters to the kernel.
1701 set_filters(pass, active)
1702 struct bpf_program *pass, *active;
1706 if (pass->bf_len > 0) {
1707 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1708 sizeof(struct bpf_program), 0) < 0) {
1709 error("Couldn't set pass-filter in kernel: %m");
1713 if (active->bf_len > 0) {
1714 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1715 sizeof(struct bpf_program), 0) < 0) {
1716 error("Couldn't set active-filter in kernel: %m");
1725 * ccp_fatal_error - returns 1 if decompression was disabled as a
1726 * result of an error detected after decompression of a packet,
1727 * 0 otherwise. This is necessary because of patent nonsense.
1730 ccp_fatal_error(unit)
1736 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1737 if (errno != ENXIO && errno != EINVAL)
1738 error("Couldn't get compression flags: %m");
1741 return cf[0] & CCP_FATALERROR;
1745 * sifvjcomp - config tcp header compression
1748 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1749 int u, vjcomp, xcidcomp, xmaxcid;
1755 maxcid[0] = xcidcomp;
1756 maxcid[1] = 15; /* XXX should be rmaxcid */
1757 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1758 error("Couldn't initialize VJ compression: %m");
1762 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1763 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1764 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1765 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1767 error("Couldn't enable VJ compression: %m");
1774 * sifup - Config the interface up and enable IP packets to pass.
1782 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1783 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1784 error("Couldn't mark interface up (get): %m");
1787 ifr.ifr_flags |= IFF_UP;
1788 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1789 error("Couldn't mark interface up (set): %m");
1797 * sifdown - Config the interface down and disable IP.
1807 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1808 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1809 error("Couldn't mark interface down (get): %m");
1812 ifr.ifr_flags &= ~IFF_UP;
1813 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1814 error("Couldn't mark interface down (set): %m");
1822 * sifnpmode - Set the mode for handling packets for a given NP.
1825 sifnpmode(u, proto, mode)
1833 npi[1] = (int) mode;
1834 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1835 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1841 #if defined(SOL2) && defined(INET6)
1843 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1852 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1857 memset(&lifr, 0, sizeof(lifr));
1858 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1859 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1864 lifr.lifr_flags |= IFF_UP;
1865 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1866 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1877 * sifdown - Config the IPv6 interface down and disable IPv6.
1886 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1890 memset(&lifr, 0, sizeof(lifr));
1891 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1892 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1897 lifr.lifr_flags &= ~IFF_UP;
1898 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1899 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1910 * sif6addr - Config the interface with an IPv6 link-local address
1918 struct sockaddr_storage laddr;
1919 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1922 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1926 memset(&lifr, 0, sizeof(lifr));
1927 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1930 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1931 * zero values, hence the interface token came to be zero too,
1932 * and without this, in.ndpd will complain
1934 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1935 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1941 * Set the interface address and destination address
1943 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1944 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1949 memset(&lifr, 0, sizeof(lifr));
1950 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1951 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1952 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1961 * cif6addr - Remove the IPv6 address from interface
1971 #endif /* defined(SOL2) && defined(INET6) */
1974 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
1977 * sifaddr - Config the interface IP addresses and netmask.
1987 memset(&ifr, 0, sizeof(ifr));
1988 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1989 ifr.ifr_addr.sa_family = AF_INET;
1990 INET_ADDR(ifr.ifr_addr) = m;
1991 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
1992 error("Couldn't set IP netmask: %m");
1995 ifr.ifr_addr.sa_family = AF_INET;
1996 INET_ADDR(ifr.ifr_addr) = o;
1997 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
1998 error("Couldn't set local IP address: %m");
2003 * On some systems, we have to explicitly set the point-to-point
2004 * flag bit before we can set a destination address.
2006 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
2007 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
2008 ifr.ifr_flags |= IFF_POINTOPOINT;
2009 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2010 error("Couldn't mark interface pt-to-pt: %m");
2014 ifr.ifr_dstaddr.sa_family = AF_INET;
2015 INET_ADDR(ifr.ifr_dstaddr) = h;
2016 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2017 error("Couldn't set remote IP address: %m");
2026 * cifaddr - Clear the interface IP addresses, and delete routes
2027 * through the interface if possible.
2034 #if defined(__USLC__) /* was: #if 0 */
2035 cifroute(unit, ouraddr, hisaddr);
2037 notice("Removing ppp interface unit");
2038 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2039 error("Can't remove ppp interface unit: %m");
2050 * sifdefaultroute - assign a default route through the address given.
2053 sifdefaultroute(u, l, g)
2059 #if defined(__USLC__)
2060 g = l; /* use the local address as gateway */
2062 memset(&rt, 0, sizeof(rt));
2063 rt.rt_dst.sa_family = AF_INET;
2064 INET_ADDR(rt.rt_dst) = 0;
2065 rt.rt_gateway.sa_family = AF_INET;
2066 INET_ADDR(rt.rt_gateway) = g;
2067 rt.rt_flags = RTF_GATEWAY;
2069 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2070 error("Can't add default route: %m");
2074 default_route_gateway = g;
2079 * cifdefaultroute - delete a default route through the address given.
2082 cifdefaultroute(u, l, g)
2088 #if defined(__USLC__)
2089 g = l; /* use the local address as gateway */
2091 memset(&rt, 0, sizeof(rt));
2092 rt.rt_dst.sa_family = AF_INET;
2093 INET_ADDR(rt.rt_dst) = 0;
2094 rt.rt_gateway.sa_family = AF_INET;
2095 INET_ADDR(rt.rt_gateway) = g;
2096 rt.rt_flags = RTF_GATEWAY;
2098 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2099 error("Can't delete default route: %m");
2103 default_route_gateway = 0;
2108 * sifproxyarp - Make a proxy ARP entry for the peer.
2111 sifproxyarp(unit, hisaddr)
2115 struct arpreq arpreq;
2117 memset(&arpreq, 0, sizeof(arpreq));
2118 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2121 arpreq.arp_pa.sa_family = AF_INET;
2122 INET_ADDR(arpreq.arp_pa) = hisaddr;
2123 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2124 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2125 error("Couldn't set proxy ARP entry: %m");
2129 proxy_arp_addr = hisaddr;
2134 * cifproxyarp - Delete the proxy ARP entry for the peer.
2137 cifproxyarp(unit, hisaddr)
2141 struct arpreq arpreq;
2143 memset(&arpreq, 0, sizeof(arpreq));
2144 arpreq.arp_pa.sa_family = AF_INET;
2145 INET_ADDR(arpreq.arp_pa) = hisaddr;
2146 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2147 error("Couldn't delete proxy ARP entry: %m");
2156 * get_ether_addr - get the hardware address of an interface on the
2157 * the same subnet as ipaddr.
2162 get_ether_addr(ipaddr, hwaddr)
2164 struct sockaddr *hwaddr;
2166 struct ifreq *ifr, *ifend, ifreq;
2169 u_int32_t ina, mask;
2172 * Scan through the system's network interfaces.
2175 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2178 ifc.ifc_len = nif * sizeof(struct ifreq);
2179 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2180 if (ifc.ifc_buf == 0)
2182 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2183 warn("Couldn't get system interface list: %m");
2187 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2188 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2189 if (ifr->ifr_addr.sa_family != AF_INET)
2192 * Check that the interface is up, and not point-to-point or loopback.
2194 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2195 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2197 if ((ifreq.ifr_flags &
2198 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2199 != (IFF_UP|IFF_BROADCAST))
2202 * Get its netmask and check that it's on the right subnet.
2204 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2206 ina = INET_ADDR(ifr->ifr_addr);
2207 mask = INET_ADDR(ifreq.ifr_addr);
2208 if ((ipaddr & mask) == (ina & mask))
2213 warn("No suitable interface found for proxy ARP");
2218 info("found interface %s for proxy ARP", ifr->ifr_name);
2219 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2220 error("Couldn't get hardware address for %s", ifr->ifr_name);
2230 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2233 get_hw_addr_dlpi(name, hwaddr)
2235 struct sockaddr *hwaddr;
2238 int unit, iffd, adrlen;
2239 unsigned char *adrp;
2242 union DL_primitives prim;
2247 * We have to open the device and ask it for its hardware address.
2248 * First split apart the device name and unit.
2250 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2251 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2258 * Open the device and do a DLPI attach and phys_addr_req.
2260 iffd = open(ifdev, O_RDWR);
2262 error("Can't open %s: %m", ifdev);
2265 if (dlpi_attach(iffd, unit) < 0
2266 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2267 || dlpi_info_req(iffd) < 0
2268 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2273 adrlen = reply.prim.info_ack.dl_addr_length;
2274 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2276 #if DL_CURRENT_VERSION >= 2
2277 if (reply.prim.info_ack.dl_sap_length < 0)
2278 adrlen += reply.prim.info_ack.dl_sap_length;
2280 adrp += reply.prim.info_ack.dl_sap_length;
2283 hwaddr->sa_family = AF_UNSPEC;
2284 memcpy(hwaddr->sa_data, adrp, adrlen);
2289 * get_hw_addr - obtain the hardware address for a named interface.
2292 get_hw_addr(name, ina, hwaddr)
2295 struct sockaddr *hwaddr;
2297 /* New way - get the address by doing an arp request. */
2301 s = socket(AF_INET, SOCK_DGRAM, 0);
2304 memset(&req, 0, sizeof(req));
2305 req.arp_pa.sa_family = AF_INET;
2306 INET_ADDR(req.arp_pa) = ina;
2307 if (ioctl(s, SIOCGARP, &req) < 0) {
2308 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2311 *hwaddr = req.arp_ha;
2312 hwaddr->sa_family = AF_UNSPEC;
2318 dlpi_attach(fd, ppa)
2321 dl_attach_req_t req;
2324 req.dl_primitive = DL_ATTACH_REQ;
2326 buf.len = sizeof(req);
2327 buf.buf = (void *) &req;
2328 return putmsg(fd, &buf, NULL, RS_HIPRI);
2338 req.dl_primitive = DL_INFO_REQ;
2339 buf.len = sizeof(req);
2340 buf.buf = (void *) &req;
2341 return putmsg(fd, &buf, NULL, RS_HIPRI);
2345 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2346 union DL_primitives *reply;
2347 int fd, expected_prim, maxlen;
2354 * Use poll to wait for a message with a timeout.
2357 pfd.events = POLLIN | POLLPRI;
2359 n = poll(&pfd, 1, 1000);
2360 } while (n == -1 && errno == EINTR);
2367 buf.maxlen = maxlen;
2368 buf.buf = (void *) reply;
2370 if (getmsg(fd, &buf, NULL, &flags) < 0)
2373 if (buf.len < sizeof(ulong)) {
2375 dbglog("dlpi response short (len=%d)\n", buf.len);
2379 if (reply->dl_primitive == expected_prim)
2383 if (reply->dl_primitive == DL_ERROR_ACK) {
2384 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2385 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2386 reply->error_ack.dl_error_primitive);
2388 dbglog("dlpi unexpected response prim %x\n",
2389 reply->dl_primitive);
2397 * Return user specified netmask, modified by any mask we might determine
2398 * for address `addr' (in network byte order).
2399 * Here we scan through the system's list of interfaces, looking for
2400 * any non-point-to-point interfaces which might appear to be on the same
2401 * network as `addr'. If we find any, we OR in their netmask to the
2402 * user-specified netmask.
2408 u_int32_t mask, nmask, ina;
2409 struct ifreq *ifr, *ifend, ifreq;
2414 if (IN_CLASSA(addr)) /* determine network mask for address class */
2415 nmask = IN_CLASSA_NET;
2416 else if (IN_CLASSB(addr))
2417 nmask = IN_CLASSB_NET;
2419 nmask = IN_CLASSC_NET;
2420 /* class D nets are disallowed by bad_ip_adrs */
2421 mask = netmask | htonl(nmask);
2424 * Scan through the system's network interfaces.
2427 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2430 ifc.ifc_len = nif * sizeof(struct ifreq);
2431 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2432 if (ifc.ifc_buf == 0)
2434 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2435 warn("Couldn't get system interface list: %m");
2439 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2440 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2442 * Check the interface's internet address.
2444 if (ifr->ifr_addr.sa_family != AF_INET)
2446 ina = INET_ADDR(ifr->ifr_addr);
2447 if ((ntohl(ina) & nmask) != (addr & nmask))
2450 * Check that the interface is up, and not point-to-point or loopback.
2452 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2453 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2455 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2459 * Get its netmask and OR it into our mask.
2461 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2463 mask |= INET_ADDR(ifreq.ifr_addr);
2471 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2474 logwtmp(line, name, host)
2475 const char *line, *name, *host;
2477 static struct utmpx utmpx;
2481 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2482 strncpy(utmpx.ut_id, ifname, sizeof(utmpx.ut_id));
2483 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2484 utmpx.ut_pid = getpid();
2485 utmpx.ut_type = USER_PROCESS;
2487 utmpx.ut_type = DEAD_PROCESS;
2489 gettimeofday(&utmpx.ut_tv, NULL);
2490 updwtmpx("/var/adm/wtmpx", &utmpx);
2494 * get_host_seed - return the serial number of this machine.
2501 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2502 error("sysinfo: %m");
2505 return (int) strtoul(buf, NULL, 16);
2509 strioctl(fd, cmd, ptr, ilen, olen)
2510 int fd, cmd, ilen, olen;
2513 struct strioctl str;
2519 if (ioctl(fd, I_STR, &str) == -1)
2521 if (str.ic_len != olen)
2522 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2523 olen, str.ic_len, cmd);
2529 * lock - create a lock file for the named lock device
2532 #define LOCK_PREFIX "/var/spool/locks/LK."
2533 static char lock_file[40]; /* name of lock file created */
2543 if (stat(dev, &sbuf) < 0) {
2544 error("Can't get device number for %s: %m", dev);
2547 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2548 error("Can't lock %s: not a character device", dev);
2551 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2552 LOCK_PREFIX, major(sbuf.st_dev),
2553 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2555 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2557 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2558 /* Read the lock file to find out who has the device locked */
2559 n = read(fd, ascii_pid, 11);
2561 error("Can't read pid from lock file %s", lock_file);
2565 pid = atoi(ascii_pid);
2566 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2567 /* pid no longer exists - remove the lock file */
2568 if (unlink(lock_file) == 0) {
2570 notice("Removed stale lock on %s (pid %d)",
2574 warn("Couldn't remove stale lock on %s",
2577 notice("Device %s is locked by pid %d",
2582 error("Can't create lock file %s: %m", lock_file);
2587 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2588 write(fd, ascii_pid, 11);
2595 * unlock - remove our lockfile
2608 * cifroute - delete a route through the addresses given.
2611 cifroute(u, our, his)
2617 memset(&rt, 0, sizeof(rt));
2618 rt.rt_dst.sa_family = AF_INET;
2619 INET_ADDR(rt.rt_dst) = his;
2620 rt.rt_gateway.sa_family = AF_INET;
2621 INET_ADDR(rt.rt_gateway) = our;
2622 rt.rt_flags = RTF_HOST;
2624 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2625 error("Can't delete route: %m");
2633 * have_route_to - determine if the system has a route to the specified
2634 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2635 * `addr' is in network byte order.
2636 * For demand mode to work properly, we have to ignore routes
2637 * through our own interface.
2639 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2640 #define T_CURRENT MI_T_CURRENT
2648 int fd, r, flags, i;
2650 struct T_optmgmt_req req;
2654 struct T_optmgmt_ack ack;
2655 unsigned char space[64];
2658 struct strbuf cbuf, dbuf;
2660 mib2_ipRouteEntry_t routes[8];
2661 mib2_ipRouteEntry_t *rp;
2663 fd = open(mux_dev_name, O_RDWR);
2665 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2669 req.req.PRIM_type = T_OPTMGMT_REQ;
2670 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2671 req.req.OPT_length = sizeof(req.hdr);
2672 req.req.MGMT_flags = T_CURRENT;
2674 req.hdr.level = MIB2_IP;
2678 cbuf.buf = (char *) &req;
2679 cbuf.len = sizeof(req);
2681 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2682 warn("have_route_to: putmsg: %m");
2688 cbuf.buf = (char *) &ack;
2689 cbuf.maxlen = sizeof(ack);
2690 dbuf.buf = (char *) routes;
2691 dbuf.maxlen = sizeof(routes);
2693 r = getmsg(fd, &cbuf, &dbuf, &flags);
2695 warn("have_route_to: getmsg: %m");
2700 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2701 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2702 || ack.ack.MGMT_flags != T_SUCCESS
2703 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2704 dbglog("have_route_to: bad message len=%d prim=%d",
2705 cbuf.len, ack.ack.PRIM_type);
2710 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2711 if (rh->level == 0 && rh->name == 0)
2713 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2714 while (r == MOREDATA)
2715 r = getmsg(fd, NULL, &dbuf, &flags);
2720 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2721 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2722 if (rp->ipRouteMask != ~0) {
2723 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2724 rp->ipRouteDest, rp->ipRouteNextHop,
2726 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2727 && rp->ipRouteNextHop != remote_addr)
2733 r = getmsg(fd, NULL, &dbuf, &flags);
2744 * get_pty - get a pty master/slave pair and chown the slave side to
2745 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2748 get_pty(master_fdp, slave_fdp, slave_name, uid)
2756 struct termios tios;
2758 mfd = open("/dev/ptmx", O_RDWR);
2760 error("Couldn't open pty master: %m");
2764 pty_name = ptsname(mfd);
2765 if (pty_name == NULL) {
2766 error("Couldn't get name of pty slave");
2770 if (chown(pty_name, uid, -1) < 0)
2771 warn("Couldn't change owner of pty slave: %m");
2772 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2773 warn("Couldn't change permissions on pty slave: %m");
2774 if (unlockpt(mfd) < 0)
2775 warn("Couldn't unlock pty slave: %m");
2777 sfd = open(pty_name, O_RDWR);
2779 error("Couldn't open pty slave %s: %m", pty_name);
2783 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2784 warn("Couldn't push ptem module on pty slave: %m");
2786 dbglog("Using %s", pty_name);
2787 strlcpy(slave_name, pty_name, MAXPATHLEN);