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. The name(s) of the authors of this software must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission.
34 * 3. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by Paul Mackerras
37 * <paulus@samba.org>".
39 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
40 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
41 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
42 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
43 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
44 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
45 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
47 * Derived from main.c and pppd.h, which are:
49 * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
51 * Redistribution and use in source and binary forms, with or without
52 * modification, are permitted provided that the following conditions
55 * 1. Redistributions of source code must retain the above copyright
56 * notice, this list of conditions and the following disclaimer.
58 * 2. Redistributions in binary form must reproduce the above copyright
59 * notice, this list of conditions and the following disclaimer in
60 * the documentation and/or other materials provided with the
63 * 3. The name "Carnegie Mellon University" must not be used to
64 * endorse or promote products derived from this software without
65 * prior written permission. For permission or any legal
66 * details, please contact
67 * Office of Technology Transfer
68 * Carnegie Mellon University
70 * Pittsburgh, PA 15213-3890
71 * (412) 268-4387, fax: (412) 268-7395
72 * tech-transfer@andrew.cmu.edu
74 * 4. Redistributions of any form whatsoever must retain the following
76 * "This product includes software developed by Computing Services
77 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
79 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
80 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
81 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
82 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
83 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
84 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
85 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
88 #define RCSID "$Id: sys-solaris.c,v 1.16 2008/01/30 14:26:53 carlsonj Exp $"
101 #include <sys/termiox.h>
106 #include <sys/types.h>
107 #include <sys/ioccom.h>
108 #include <sys/stream.h>
109 #include <sys/stropts.h>
110 #include <sys/socket.h>
111 #include <sys/sockio.h>
112 #include <sys/sysmacros.h>
113 #include <sys/systeminfo.h>
114 #include <sys/dlpi.h>
115 #include <sys/stat.h>
116 #include <sys/mkdev.h>
118 #include <net/if_arp.h>
119 #include <net/route.h>
120 #include <net/ppp_defs.h>
121 #include <net/pppio.h>
122 #include <netinet/in.h>
124 #include <sys/tihdr.h>
125 #include <sys/tiuser.h>
126 #include <inet/common.h>
127 #include <inet/mib2.h>
128 #include <sys/ethernet.h>
137 #if !defined(PPP_DRV_NAME)
138 #define PPP_DRV_NAME "ppp"
139 #endif /* !defined(PPP_DRV_NAME) */
141 #if !defined(PPP_DEV_NAME)
142 #define PPP_DEV_NAME "/dev/" PPP_DRV_NAME
143 #endif /* !defined(PPP_DEV_NAME) */
145 #if !defined(AHDLC_MOD_NAME)
146 #define AHDLC_MOD_NAME "ppp_ahdl"
147 #endif /* !defined(AHDLC_MOD_NAME) */
149 #if !defined(COMP_MOD_NAME)
150 #define COMP_MOD_NAME "ppp_comp"
151 #endif /* !defined(COMP_MOD_NAME) */
153 #if !defined(IP_DEV_NAME)
154 #define IP_DEV_NAME "/dev/ip"
155 #endif /* !defined(IP_DEV_NAME) */
157 #if !defined(IP_MOD_NAME)
158 #define IP_MOD_NAME "ip"
159 #endif /* !defined(IP_MOD_NAME) */
161 #if !defined(UDP_DEV_NAME) && defined(SOL2)
162 #define UDP_DEV_NAME "/dev/udp"
163 #endif /* !defined(UDP_DEV_NAME) && defined(SOL2) */
165 #if !defined(UDP6_DEV_NAME) && defined(SOL2)
166 #define UDP6_DEV_NAME "/dev/udp6"
167 #endif /* !defined(UDP6_DEV_NAME) && defined(SOL2) */
172 * "/dev/udp" is used as a multiplexor to PLINK the interface stream
173 * under. It is used in place of "/dev/ip" since STREAMS will not let
174 * a driver be PLINK'ed under itself, and "/dev/ip" is typically the
175 * driver at the bottom of the tunneling interfaces stream.
177 static char *mux_dev_name = UDP_DEV_NAME;
179 static char *mux_dev_name = IP_DEV_NAME;
182 static int fdmuxid = -1;
184 static int ipmuxid = -1;
186 #if defined(INET6) && defined(SOL2)
187 static int ip6fd; /* IP file descriptor */
188 static int ip6muxid = -1; /* Multiplexer file descriptor */
189 static int if6_is_up = 0; /* IPv6 interface has been marked up */
191 #define IN6_SOCKADDR_FROM_EUI64(s, eui64) do { \
192 (s)->sin6_family = AF_INET6; \
193 (s)->sin6_addr.s6_addr32[0] = htonl(0xfe800000); \
194 eui64_copy(eui64, (s)->sin6_addr.s6_addr32[2]); \
197 #define _IN6_LLX_FROM_EUI64(l, s, eui64, as) do { \
198 s->sin6_addr.s6_addr32[0] = htonl(as); \
199 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
200 s->sin6_family = AF_INET6; \
201 l.lifr_addr.ss_family = AF_INET6; \
202 l.lifr_addrlen = 64; \
203 l.lifr_addr = laddr; \
206 #define _IN6A_LLX_FROM_EUI64(s, eui64, as) do { \
207 s->s6_addr32[0] = htonl(as); \
208 eui64_copy(eui64, s->s6_addr32[2]); \
211 #define IN6_LLADDR_FROM_EUI64(l, s, eui64) \
212 _IN6_LLX_FROM_EUI64(l, s, eui64, 0xfe800000)
214 #define IN6_LLTOKEN_FROM_EUI64(l, s, eui64) \
215 _IN6_LLX_FROM_EUI64(l, s, eui64, 0)
217 #define IN6A_LLADDR_FROM_EUI64(s, eui64) \
218 _IN6A_LLX_FROM_EUI64(s, eui64, 0xfe800000)
220 #endif /* defined(INET6) && defined(SOL2) */
222 #if defined(INET6) && defined(SOL2)
223 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
225 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
226 #define MAXIFS 256 /* Max # of interfaces */
227 #endif /* defined(INET6) && defined(SOL2) */
229 static int restore_term;
230 static struct termios inittermios;
232 static struct termiox inittermiox;
233 static int termiox_ok;
235 static struct winsize wsinfo; /* Initial window size info */
236 static pid_t tty_sid; /* original session ID for terminal */
238 extern u_char inpacket_buf[]; /* borrowed from main.c */
240 #define MAX_POLLFDS 32
241 static struct pollfd pollfds[MAX_POLLFDS];
242 static int n_pollfds;
244 static int link_mtu, link_mru;
247 static int tty_nmodules;
248 static char tty_modules[NMODULES][FMNAMESZ+1];
249 static int tty_npushed;
251 static int if_is_up; /* Interface has been marked up */
252 static u_int32_t remote_addr; /* IP address of peer */
253 static u_int32_t default_route_gateway; /* Gateway for default route added */
254 static eui64_t default_route_gateway6; /* Gateway for default IPv6 route added */
255 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
257 /* Prototypes for procedures local to this file. */
258 static int translate_speed __P((int));
259 static int baud_rate_of __P((int));
260 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
261 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
262 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
263 static int dlpi_attach __P((int, int));
264 static int dlpi_info_req __P((int));
265 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
266 static int strioctl __P((int, int, void *, int, int));
270 * sifppa - Sets interface ppa
272 * without setting the ppa, ip module will return EINVAL upon setting the
273 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
274 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
275 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
276 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
277 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
278 * is required because the ppp DLPI provider advertises itself as
279 * a DLPI style 2 type, which requires a point of attachment to be
280 * specified. The only way the user can specify a point of attachment
281 * is via SIOCSLIFNAME or IF_UNITSEL.
283 * Such changes in the behavior of ip module was made to meet new or
284 * evolving standards requirements.
292 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
296 #if defined(SOL2) && defined(INET6)
298 * get_first_ethernet - returns the first Ethernet interface name found in
299 * the system, or NULL if none is found
301 * NOTE: This is the lifreq version (Solaris 8 and above)
308 struct lifreq *plifreq;
310 int fd, num_ifs, i, found;
314 fd = socket(AF_INET, SOCK_DGRAM, 0);
320 * Find out how many interfaces are running
322 lifn.lifn_family = AF_UNSPEC;
323 lifn.lifn_flags = LIFC_NOXMIT;
324 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
326 error("could not determine number of interfaces: %m");
330 num_ifs = lifn.lifn_count;
331 req_size = num_ifs * sizeof(struct lifreq);
332 req = malloc(req_size);
335 error("out of memory");
340 * Get interface configuration info for all interfaces
342 lifc.lifc_family = AF_UNSPEC;
343 lifc.lifc_flags = LIFC_NOXMIT;
344 lifc.lifc_len = req_size;
346 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
349 error("SIOCGLIFCONF: %m");
354 * And traverse each interface to look specifically for the first
355 * occurence of an Ethernet interface which has been marked up
357 plifreq = lifc.lifc_req;
359 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
361 if (strchr(plifreq->lifr_name, ':') != NULL)
364 memset(&lifr, 0, sizeof(lifr));
365 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
366 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
369 error("SIOCGLIFFLAGS: %m");
372 fl = lifr.lifr_flags;
374 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
375 != (IFF_UP | IFF_BROADCAST))
385 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
386 return (char *)first_ether_name;
392 * get_first_ethernet - returns the first Ethernet interface name found in
393 * the system, or NULL if none is found
395 * NOTE: This is the ifreq version (before Solaris 8).
401 struct ifreq *pifreq;
403 int fd, num_ifs, i, found;
407 fd = socket(AF_INET, SOCK_DGRAM, 0);
413 * Find out how many interfaces are running
415 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
419 req_size = num_ifs * sizeof(struct ifreq);
420 req = malloc(req_size);
423 error("out of memory");
428 * Get interface configuration info for all interfaces
430 ifc.ifc_len = req_size;
432 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
435 error("SIOCGIFCONF: %m");
440 * And traverse each interface to look specifically for the first
441 * occurence of an Ethernet interface which has been marked up
443 pifreq = ifc.ifc_req;
445 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
447 if (strchr(pifreq->ifr_name, ':') != NULL)
450 memset(&ifr, 0, sizeof(ifr));
451 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
452 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
455 error("SIOCGIFFLAGS: %m");
460 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
461 != (IFF_UP | IFF_BROADCAST))
471 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
472 return (char *)first_ether_name;
476 #endif /* defined(SOL2) && defined(INET6) */
480 * get_if_hwaddr - get the hardware address for the specified
481 * network interface device.
484 get_if_hwaddr(u_char *addr, char *if_name)
486 struct sockaddr s_eth_addr;
487 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
493 * Send DL_INFO_REQ to the driver to solicit its MAC address
495 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
496 error("could not obtain hardware address for %s", if_name);
500 memcpy(addr, eth_addr->ether_addr_octet, 6);
505 #if defined(SOL2) && defined(INET6)
507 * slifname - Sets interface ppa and flags
509 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
510 * be set in order to declare this as an IPv6 interface
520 memset(&lifr, 0, sizeof(lifr));
521 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
525 lifr.lifr_flags |= IFF_IPV6;
526 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
528 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
530 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
540 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
542 * walks the list of valid ethernet interfaces, and convert the first
543 * found 48-bit MAC address into EUI 64. caller also assumes that
544 * the system has a properly configured Ethernet interface for this
545 * function to return non-zero.
548 ether_to_eui64(eui64_t *p_eui64)
550 struct sockaddr s_eth_addr;
551 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
554 if ((if_name = get_first_ethernet()) == NULL) {
555 error("no persistent id can be found");
560 * Send DL_INFO_REQ to the driver to solicit its MAC address
562 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
563 error("could not obtain hardware address for %s", if_name);
568 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
570 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
571 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
572 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
573 p_eui64->e8[3] = 0xFF;
574 p_eui64->e8[4] = 0xFE;
575 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
576 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
577 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
581 #endif /* defined(SOL2) && defined(INET6) */
584 * sys_init - System-dependent initialization.
591 #if defined(INET6) && defined(SOL2)
594 #endif /* defined(INET6) && defined(SOL2) */
597 union DL_primitives prim;
600 #endif /* !defined(SOL2) */
602 ipfd = open(mux_dev_name, O_RDWR, 0);
604 fatal("Couldn't open IP device: %m");
606 #if defined(INET6) && defined(SOL2)
607 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
609 fatal("Couldn't open IP device (2): %m");
610 #endif /* defined(INET6) && defined(SOL2) */
612 if (default_device && !notty)
613 tty_sid = getsid((pid_t)0);
615 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
617 fatal("Can't open %s: %m", PPP_DEV_NAME);
618 if (kdebugflag & 1) {
619 x = PPPDBG_LOG + PPPDBG_DRIVER;
620 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
623 /* Assign a new PPA and get its unit number. */
624 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
625 fatal("Can't create new PPP interface: %m");
629 * Since sys_init() is called prior to ifname being set in main(),
630 * we need to get the ifname now, otherwise slifname(), and others,
631 * will fail, or maybe, I should move them to a later point ?
632 * <adi.masputra@sun.com>
634 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
635 #endif /* defined(SOL2) */
637 * Open the ppp device again and link it under the ip multiplexor.
638 * IP will assign a unit number which hopefully is the same as ifunit.
639 * I don't know any way to be certain they will be the same. :-(
641 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
643 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
644 if (kdebugflag & 1) {
645 x = PPPDBG_LOG + PPPDBG_DRIVER;
646 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
649 #if defined(INET6) && defined(SOL2)
650 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
653 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
655 if (kdebugflag & 1) {
656 x = PPPDBG_LOG + PPPDBG_DRIVER;
657 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
659 #endif /* defined(INET6) && defined(SOL2) */
662 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
666 #endif /* defined(INET6) */
667 fatal("Can't push IP module: %m");
671 * Assign ppa according to the unit number returned by ppp device
672 * after plumbing is completed above.
674 if (sifppa(ifd, ifunit) < 0) {
678 #endif /* defined(INET6) */
679 fatal("Can't set ppa for unit %d: %m", ifunit);
684 * An IPv6 interface is created anyway, even when the user does not
685 * explicitly enable it. Note that the interface will be marked
686 * IPv6 during slifname().
688 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
691 fatal("Can't push IP module (2): %m");
695 * Assign ppa according to the unit number returned by ppp device
696 * after plumbing is completed above. In addition, mark the interface
697 * as an IPv6 interface.
699 if (slifname(i6fd, ifunit) < 0) {
702 fatal("Can't set ifname for unit %d: %m", ifunit);
704 #endif /* defined(INET6) */
706 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
711 #endif /* defined(INET6) */
712 fatal("Can't I_PLINK PPP device to IP: %m");
715 memset(&ifr, 0, sizeof(ifr));
716 sprintf(ifr.ifr_name, "%s", ifname);
717 ifr.ifr_ip_muxid = ipmuxid;
720 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
721 * This is so that an arbitrary module can be inserted, or deleted,
722 * between ip module and the device driver without tearing down the
723 * existing stream. Such feature requires the mux ids, which is set
724 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
726 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
727 ioctl(ipfd, I_PUNLINK, ipmuxid);
730 #endif /* defined(INET6) */
731 fatal("SIOCSIFMUXID: %m");
734 #else /* else if !defined(SOL2) */
736 if (dlpi_attach(ifd, ifunit) < 0 ||
737 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
739 fatal("Can't attach to ppp%d: %m", ifunit);
742 ipmuxid = ioctl(ipfd, I_LINK, ifd);
745 fatal("Can't link PPP device to IP: %m");
746 #endif /* defined(SOL2) */
748 #if defined(INET6) && defined(SOL2)
749 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
752 ioctl(ipfd, I_PUNLINK, ipmuxid);
753 fatal("Can't I_PLINK PPP device to IP (2): %m");
756 memset(&lifr, 0, sizeof(lifr));
757 sprintf(lifr.lifr_name, "%s", ifname);
758 lifr.lifr_ip_muxid = ip6muxid;
761 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
763 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
764 ioctl(ipfd, I_PUNLINK, ipmuxid);
765 ioctl(ip6fd, I_PUNLINK, ip6muxid);
766 fatal("Can't link PPP device to IP (2): %m");
768 #endif /* defined(INET6) && defined(SOL2) */
771 /* Set the interface name for the link. */
772 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
773 ifr.ifr_metric = ipmuxid;
774 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
775 fatal("Can't set interface name %s: %m", ifr.ifr_name);
776 #endif /* !defined(SOL2) */
782 * sys_cleanup - restore any system state we modified before exiting:
783 * mark the interface down, delete default route and/or proxy arp entry.
784 * This should call die() because it's called from die().
793 #endif /* defined(INET6) */
794 #endif /* defined(SOL2) */
796 #if defined(SOL2) && defined(INET6)
799 #endif /* defined(SOL2) && defined(INET6) */
802 if (default_route_gateway)
803 cifdefaultroute(0, default_route_gateway, default_route_gateway);
804 if (default_route_gateway6.e32[0] != 0 || default_route_gateway6.e32[1] != 0)
805 cif6defaultroute(0, default_route_gateway6, default_route_gateway6);
807 cifproxyarp(0, proxy_arp_addr);
810 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
811 * unlink and re-link the modules, causing the muxid to change.
813 memset(&ifr, 0, sizeof(ifr));
814 sprintf(ifr.ifr_name, "%s", ifname);
815 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
816 error("SIOCGIFFLAGS: %m");
820 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
821 error("SIOCGIFMUXID: %m");
825 ipmuxid = ifr.ifr_ip_muxid;
827 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
828 error("Can't I_PUNLINK PPP from IP: %m");
833 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
834 * unlink and re-link the modules, causing the muxid to change.
836 memset(&lifr, 0, sizeof(lifr));
837 sprintf(lifr.lifr_name, "%s", ifname);
838 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
839 error("SIOCGLIFFLAGS: %m");
843 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
844 error("SIOCGLIFMUXID: %m");
848 ip6muxid = lifr.lifr_ip_muxid;
850 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
851 error("Can't I_PUNLINK PPP from IP (2): %m");
853 #endif /* defined(INET6) */
854 #endif /* defined(SOL2) */
858 * sys_close - Clean up in a child process before execing.
864 #if defined(INET6) && defined(SOL2)
866 #endif /* defined(INET6) && defined(SOL2) */
872 * sys_check_options - check the options that the user specified
882 * daemon - Detach us from controlling terminal session.
885 daemon(nochdir, noclose)
886 int nochdir, noclose;
890 if ((pid = fork()) < 0)
893 exit(0); /* parent dies */
898 fclose(stdin); /* don't need stdin, stdout, stderr */
907 * ppp_available - check whether the system has any ppp interfaces
914 return stat(PPP_DEV_NAME, &buf) >= 0;
918 * any_compressions - see if compression is enabled or not
920 * In the STREAMS implementation of kernel-portion pppd,
921 * the comp STREAMS module performs the ACFC, PFC, as well
922 * CCP and VJ compressions. However, if the user has explicitly
923 * declare to not enable them from the command line, there is
924 * no point of having the comp module be pushed on the stream.
929 if ((!lcp_wantoptions[0].neg_accompression) &&
930 (!lcp_wantoptions[0].neg_pcompression) &&
931 (!ccp_protent.enabled_flag) &&
932 (!ipcp_wantoptions[0].neg_vj)) {
939 * tty_establish_ppp - Turn the serial port into a ppp interface.
942 tty_establish_ppp(fd)
947 /* Pop any existing modules off the tty stream. */
949 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
950 || strcmp(tty_modules[i], "ptem") == 0
951 || ioctl(fd, I_POP, 0) < 0)
955 /* Push the async hdlc module and the compressor module. */
959 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
960 error("Couldn't push PPP Async HDLC module: %m");
965 if (kdebugflag & 4) {
966 i = PPPDBG_LOG + PPPDBG_AHDLC;
967 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
970 * There's no need to push comp module if we don't intend
971 * to compress anything
973 if (any_compressions()) {
974 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
975 error("Couldn't push PPP compression module: %m");
980 if (kdebugflag & 2) {
982 if (any_compressions())
984 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
987 /* Link the serial port under the PPP multiplexor. */
988 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
989 error("Can't link tty to PPP mux: %m");
997 * tty_disestablish_ppp - Restore the serial port to normal operation.
998 * It attempts to reconstruct the stream with the previously popped
999 * modules. This shouldn't call die() because it's called from die().
1002 tty_disestablish_ppp(fd)
1008 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
1010 error("Can't unlink tty from PPP mux: %m");
1015 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
1017 for (i = tty_nmodules - 1; i >= 0; --i)
1018 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
1019 error("Couldn't restore tty module %s: %m",
1022 if (hungup && default_device && tty_sid > 0) {
1024 * If we have received a hangup, we need to send a SIGHUP
1025 * to the terminal's controlling process. The reason is
1026 * that the original stream head for the terminal hasn't
1027 * seen the M_HANGUP message (it went up through the ppp
1028 * driver to the stream head for our fd to /dev/ppp).
1030 kill(tty_sid, SIGHUP);
1036 * Check whether the link seems not to be 8-bit clean.
1044 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1049 s = "bit 7 set to 1";
1052 s = "bit 7 set to 0";
1062 warn("Serial link is not 8-bit clean:");
1063 warn("All received characters had %s", s);
1068 * List of valid speeds.
1071 int speed_int, speed_val;
1140 { 115200, B115200 },
1143 { 153600, B153600 },
1146 { 230400, B230400 },
1149 { 307200, B307200 },
1152 { 460800, B460800 },
1158 * Translate from bits/second to a speed_t.
1161 translate_speed(bps)
1164 struct speed *speedp;
1168 for (speedp = speeds; speedp->speed_int; speedp++)
1169 if (bps == speedp->speed_int)
1170 return speedp->speed_val;
1171 warn("speed %d not supported", bps);
1176 * Translate from a speed_t to bits/second.
1182 struct speed *speedp;
1186 for (speedp = speeds; speedp->speed_int; speedp++)
1187 if (speed == speedp->speed_val)
1188 return speedp->speed_int;
1193 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1194 * at the requested speed, etc. If `local' is true, set CLOCAL
1195 * regardless of whether the modem option was specified.
1198 set_up_tty(fd, local)
1202 struct termios tios;
1203 #if !defined (CRTSCTS)
1204 struct termiox tiox;
1207 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1208 fatal("tcgetattr: %m");
1212 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1214 if (errno != ENOTTY)
1215 error("TCGETX: %m");
1219 if (!restore_term) {
1225 ioctl(fd, TIOCGWINSZ, &wsinfo);
1228 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1231 tios.c_cflag |= CRTSCTS;
1232 else if (crtscts < 0)
1233 tios.c_cflag &= ~CRTSCTS;
1235 if (crtscts != 0 && !termiox_ok) {
1236 error("Can't set RTS/CTS flow control");
1237 } else if (crtscts > 0) {
1238 tiox.x_hflag |= RTSXOFF|CTSXON;
1239 } else if (crtscts < 0) {
1240 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1245 tios.c_cflag |= CSTOPB;
1247 tios.c_cflag |= CS8 | CREAD | HUPCL;
1248 if (local || !modem)
1249 tios.c_cflag |= CLOCAL;
1250 tios.c_iflag = IGNBRK | IGNPAR;
1253 tios.c_cc[VMIN] = 1;
1254 tios.c_cc[VTIME] = 0;
1256 if (crtscts == -2) {
1257 tios.c_iflag |= IXON | IXOFF;
1258 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1259 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1262 speed = translate_speed(inspeed);
1264 cfsetospeed(&tios, speed);
1265 cfsetispeed(&tios, speed);
1267 speed = cfgetospeed(&tios);
1269 * We can't proceed if the serial port speed is 0,
1270 * since that implies that the serial port is disabled.
1272 if ((speed == B0) && !sync_serial)
1273 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1276 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1277 fatal("tcsetattr: %m");
1280 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1281 error("TCSETXF: %m");
1285 baud_rate = inspeed = baud_rate_of(speed);
1291 * restore_tty - restore the terminal to the saved settings.
1298 if (!default_device) {
1300 * Turn off echoing, because otherwise we can get into
1301 * a loop with the tty and the modem echoing to each other.
1302 * We presume we are the sole user of this tty device, so
1303 * when we close it, it will revert to its defaults anyway.
1305 inittermios.c_lflag &= ~(ECHO | ECHONL);
1307 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1308 if (!hungup && errno != ENXIO)
1309 warn("tcsetattr: %m");
1311 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1312 if (!hungup && errno != ENXIO)
1313 error("TCSETXF: %m");
1317 ioctl(fd, TIOCSWINSZ, &wsinfo);
1323 * setdtr - control the DTR line on the serial port.
1324 * This is called from die(), so it shouldn't call die().
1330 int modembits = TIOCM_DTR;
1332 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1336 * open_loopback - open the device we use for getting packets
1337 * in demand mode. Under Solaris 2, we use our existing fd
1338 * to the ppp driver.
1347 * output - Output PPP packet.
1350 output(unit, p, len)
1359 dump_packet("sent", p, len);
1360 if (snoop_send_hook) snoop_send_hook(p, len);
1363 data.buf = (caddr_t) p;
1365 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1366 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1368 error("Couldn't send packet: %m");
1372 pfd.events = POLLOUT;
1373 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1379 * wait_input - wait until there is data available,
1380 * for the length of time specified by *timo (indefinite
1385 struct timeval *timo;
1389 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1390 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1395 * add_fd - add an fd to the set that wait_input waits for.
1402 for (n = 0; n < n_pollfds; ++n)
1403 if (pollfds[n].fd == fd)
1405 if (n_pollfds < MAX_POLLFDS) {
1406 pollfds[n_pollfds].fd = fd;
1407 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1410 error("Too many inputs!");
1414 * remove_fd - remove an fd from the set that wait_input waits for.
1421 for (n = 0; n < n_pollfds; ++n) {
1422 if (pollfds[n].fd == fd) {
1423 while (++n < n_pollfds)
1424 pollfds[n-1] = pollfds[n];
1433 * wait_loop_output - wait until there is data available on the
1434 * loopback, for the length of time specified by *timo (indefinite
1438 wait_loop_output(timo)
1439 struct timeval *timo;
1445 * wait_time - wait for a given length of time or until a
1446 * signal is received.
1450 struct timeval *timo;
1454 n = select(0, NULL, NULL, NULL, timo);
1455 if (n < 0 && errno != EINTR)
1456 fatal("select: %m");
1462 * read_packet - get a PPP packet from the serial device.
1468 struct strbuf ctrl, data;
1470 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1473 data.maxlen = PPP_MRU + PPP_HDRLEN;
1474 data.buf = (caddr_t) buf;
1475 ctrl.maxlen = sizeof(ctrlbuf);
1476 ctrl.buf = (caddr_t) ctrlbuf;
1478 len = getmsg(pppfd, &ctrl, &data, &flags);
1480 if (errno == EAGAIN || errno == EINTR)
1482 fatal("Error reading packet: %m");
1489 * Got a M_PROTO or M_PCPROTO message. Interpret it
1490 * as a DLPI primitive??
1493 dbglog("got dlpi prim 0x%x, len=%d",
1494 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1500 * get_loop_output - get outgoing packets from the ppp device,
1501 * and detect when we want to bring the real link up.
1502 * Return value is 1 if we need to bring up the link, 0 otherwise.
1510 while ((len = read_packet(inpacket_buf)) > 0) {
1511 if (loop_frame(inpacket_buf, len))
1518 * netif_set_mtu - set the MTU on the PPP network interface.
1521 netif_set_mtu(unit, mtu)
1525 #if defined(INET6) && defined(SOL2)
1528 #endif /* defined(INET6) && defined(SOL2) */
1530 memset(&ifr, 0, sizeof(ifr));
1531 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1532 ifr.ifr_metric = link_mtu;
1533 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1534 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1537 #if defined(INET6) && defined(SOL2)
1538 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1540 error("Couldn't open IPv6 socket: %m");
1542 memset(&lifr, 0, sizeof(lifr));
1543 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1544 lifr.lifr_mtu = link_mtu;
1545 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1547 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1550 #endif /* defined(INET6) && defined(SOL2) */
1554 * tty_send_config - configure the transmit characteristics of
1555 * the ppp interface.
1558 tty_send_config(mtu, asyncmap, pcomp, accomp)
1566 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1567 if (hungup && errno == ENXIO) {
1571 error("Couldn't set MTU: %m");
1575 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1576 error("Couldn't set transmit ACCM: %m");
1578 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1579 cf[1] = COMP_PROT | COMP_AC;
1580 if (any_compressions() &&
1581 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1582 error("Couldn't set prot/AC compression: %m");
1587 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1597 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1598 if (!hungup || errno != ENXIO)
1599 warn("Couldn't set extended ACCM: %m");
1604 * tty_recv_config - configure the receive-side characteristics of
1605 * the ppp interface.
1608 tty_recv_config(mru, asyncmap, pcomp, accomp)
1616 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1617 if (hungup && errno == ENXIO) {
1621 error("Couldn't set MRU: %m");
1625 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1626 error("Couldn't set receive ACCM: %m");
1628 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1629 cf[1] = DECOMP_PROT | DECOMP_AC;
1630 if (any_compressions() &&
1631 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1632 error("Couldn't set prot/AC decompression: %m");
1637 * ccp_test - ask kernel whether a given compression method
1638 * is acceptable for use.
1641 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1642 int unit, opt_len, for_transmit;
1645 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1646 opt_ptr, opt_len, 0) >= 0)
1648 return (errno == ENOSR)? 0: -1;
1652 * ccp_flags_set - inform kernel about the current state of CCP.
1655 ccp_flags_set(unit, isopen, isup)
1656 int unit, isopen, isup;
1660 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1661 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1662 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1663 if (!hungup || errno != ENXIO)
1664 error("Couldn't set kernel CCP state: %m");
1669 * get_idle_time - return how long the link has been idle.
1672 get_idle_time(u, ip)
1674 struct ppp_idle *ip;
1676 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1680 * get_ppp_stats - return statistics for the link.
1683 get_ppp_stats(u, stats)
1685 struct pppd_stats *stats;
1690 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1691 error("Couldn't get link statistics: %m");
1694 stats->bytes_in = s.p.ppp_ibytes;
1695 stats->bytes_out = s.p.ppp_obytes;
1696 stats->pkts_in = s.p.ppp_ipackets;
1697 stats->pkts_out = s.p.ppp_opackets;
1703 * set_filters - transfer the pass and active filters to the kernel.
1706 set_filters(pass, active)
1707 struct bpf_program *pass, *active;
1711 if (pass->bf_len > 0) {
1712 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1713 sizeof(struct bpf_program), 0) < 0) {
1714 error("Couldn't set pass-filter in kernel: %m");
1718 if (active->bf_len > 0) {
1719 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1720 sizeof(struct bpf_program), 0) < 0) {
1721 error("Couldn't set active-filter in kernel: %m");
1730 * ccp_fatal_error - returns 1 if decompression was disabled as a
1731 * result of an error detected after decompression of a packet,
1732 * 0 otherwise. This is necessary because of patent nonsense.
1735 ccp_fatal_error(unit)
1741 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1742 if (errno != ENXIO && errno != EINVAL)
1743 error("Couldn't get compression flags: %m");
1746 return cf[0] & CCP_FATALERROR;
1750 * sifvjcomp - config tcp header compression
1753 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1754 int u, vjcomp, xcidcomp, xmaxcid;
1760 maxcid[0] = xcidcomp;
1761 maxcid[1] = 15; /* XXX should be rmaxcid */
1762 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1763 error("Couldn't initialize VJ compression: %m");
1767 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1768 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1769 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1770 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1772 error("Couldn't enable VJ compression: %m");
1779 * sifup - Config the interface up and enable IP packets to pass.
1787 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1788 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1789 error("Couldn't mark interface up (get): %m");
1792 ifr.ifr_flags |= IFF_UP;
1793 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1794 error("Couldn't mark interface up (set): %m");
1802 * sifdown - Config the interface down and disable IP.
1812 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1813 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1814 error("Couldn't mark interface down (get): %m");
1817 ifr.ifr_flags &= ~IFF_UP;
1818 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1819 error("Couldn't mark interface down (set): %m");
1827 * sifnpmode - Set the mode for handling packets for a given NP.
1830 sifnpmode(u, proto, mode)
1838 npi[1] = (int) mode;
1839 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1840 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1846 #if defined(SOL2) && defined(INET6)
1848 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1857 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1862 memset(&lifr, 0, sizeof(lifr));
1863 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1864 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1869 lifr.lifr_flags |= IFF_UP;
1870 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1871 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1882 * sifdown - Config the IPv6 interface down and disable IPv6.
1891 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1895 memset(&lifr, 0, sizeof(lifr));
1896 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1897 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1902 lifr.lifr_flags &= ~IFF_UP;
1903 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1904 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1915 * sif6addr - Config the interface with an IPv6 link-local address
1923 struct sockaddr_storage laddr;
1924 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1927 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1931 memset(&lifr, 0, sizeof(lifr));
1932 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1935 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1936 * zero values, hence the interface token came to be zero too,
1937 * and without this, in.ndpd will complain
1939 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1940 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1946 * Set the interface address and destination address
1948 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1949 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1954 memset(&lifr, 0, sizeof(lifr));
1955 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1956 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1957 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1966 * cif6addr - Remove the IPv6 address from interface
1977 * sif6defaultroute - assign a default route through the address given.
1980 sif6defaultroute(u, l, g)
1985 struct rt_msghdr rtm;
1986 struct sockaddr_in6 dst;
1987 struct sockaddr_in6 gw;
1992 #if defined(__USLC__)
1993 g = l; /* use the local address as gateway */
1995 memset(&rmsg, 0, sizeof(rmsg));
1997 rmsg.rtm.rtm_msglen = sizeof (rmsg);
1998 rmsg.rtm.rtm_version = RTM_VERSION;
1999 rmsg.rtm.rtm_type = RTM_ADD;
2000 rmsg.rtm.rtm_flags = RTF_GATEWAY;
2001 rmsg.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
2002 rmsg.rtm.rtm_pid = getpid();
2003 rmsg.rtm.rtm_seq = seq++;
2005 rmsg.dst.sin6_family = AF_INET6;
2007 rmsg.gw.sin6_family = AF_INET6;
2008 IN6_SOCKADDR_FROM_EUI64(&rmsg.gw, g);
2010 rtsock = socket(PF_ROUTE, SOCK_RAW, 0);
2013 error("Can't add default route: %m");
2017 if (write(rtsock, &rmsg, sizeof(rmsg)) < 0)
2018 error("Can't add default route: %m");
2022 default_route_gateway6 = g;
2027 * cif6defaultroute - delete a default route through the address given.
2030 cif6defaultroute(u, l, g)
2034 /* No need to do this on Solaris; the kernel deletes the
2035 route when the interface goes down. */
2036 memset(&default_route_gateway6, 0, sizeof(default_route_gateway6));
2040 #endif /* defined(SOL2) && defined(INET6) */
2043 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
2046 * sifaddr - Config the interface IP addresses and netmask.
2056 memset(&ifr, 0, sizeof(ifr));
2057 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
2058 ifr.ifr_addr.sa_family = AF_INET;
2059 INET_ADDR(ifr.ifr_addr) = m;
2060 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
2061 error("Couldn't set IP netmask: %m");
2064 ifr.ifr_addr.sa_family = AF_INET;
2065 INET_ADDR(ifr.ifr_addr) = o;
2066 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
2067 error("Couldn't set local IP address: %m");
2072 * On some systems, we have to explicitly set the point-to-point
2073 * flag bit before we can set a destination address.
2075 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
2076 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
2077 ifr.ifr_flags |= IFF_POINTOPOINT;
2078 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2079 error("Couldn't mark interface pt-to-pt: %m");
2083 ifr.ifr_dstaddr.sa_family = AF_INET;
2084 INET_ADDR(ifr.ifr_dstaddr) = h;
2085 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2086 error("Couldn't set remote IP address: %m");
2095 * cifaddr - Clear the interface IP addresses, and delete routes
2096 * through the interface if possible.
2103 #if defined(__USLC__) /* was: #if 0 */
2104 cifroute(unit, ouraddr, hisaddr);
2106 notice("Removing ppp interface unit");
2107 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2108 error("Can't remove ppp interface unit: %m");
2119 * sifdefaultroute - assign a default route through the address given.
2122 sifdefaultroute(u, l, g)
2128 #if defined(__USLC__)
2129 g = l; /* use the local address as gateway */
2131 memset(&rt, 0, sizeof(rt));
2132 rt.rt_dst.sa_family = AF_INET;
2133 INET_ADDR(rt.rt_dst) = 0;
2134 rt.rt_gateway.sa_family = AF_INET;
2135 INET_ADDR(rt.rt_gateway) = g;
2136 rt.rt_flags = RTF_GATEWAY;
2138 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2139 error("Can't add default route: %m");
2143 default_route_gateway = g;
2148 * cifdefaultroute - delete a default route through the address given.
2151 cifdefaultroute(u, l, g)
2157 #if defined(__USLC__)
2158 g = l; /* use the local address as gateway */
2160 memset(&rt, 0, sizeof(rt));
2161 rt.rt_dst.sa_family = AF_INET;
2162 INET_ADDR(rt.rt_dst) = 0;
2163 rt.rt_gateway.sa_family = AF_INET;
2164 INET_ADDR(rt.rt_gateway) = g;
2165 rt.rt_flags = RTF_GATEWAY;
2167 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2168 error("Can't delete default route: %m");
2172 default_route_gateway = 0;
2177 * sifproxyarp - Make a proxy ARP entry for the peer.
2180 sifproxyarp(unit, hisaddr)
2184 struct arpreq arpreq;
2186 memset(&arpreq, 0, sizeof(arpreq));
2187 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2190 arpreq.arp_pa.sa_family = AF_INET;
2191 INET_ADDR(arpreq.arp_pa) = hisaddr;
2192 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2193 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2194 error("Couldn't set proxy ARP entry: %m");
2198 proxy_arp_addr = hisaddr;
2203 * cifproxyarp - Delete the proxy ARP entry for the peer.
2206 cifproxyarp(unit, hisaddr)
2210 struct arpreq arpreq;
2212 memset(&arpreq, 0, sizeof(arpreq));
2213 arpreq.arp_pa.sa_family = AF_INET;
2214 INET_ADDR(arpreq.arp_pa) = hisaddr;
2215 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2216 error("Couldn't delete proxy ARP entry: %m");
2225 * get_ether_addr - get the hardware address of an interface on the
2226 * the same subnet as ipaddr.
2231 get_ether_addr(ipaddr, hwaddr)
2233 struct sockaddr *hwaddr;
2235 struct ifreq *ifr, *ifend, ifreq;
2238 u_int32_t ina, mask;
2241 * Scan through the system's network interfaces.
2244 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2247 ifc.ifc_len = nif * sizeof(struct ifreq);
2248 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2249 if (ifc.ifc_buf == 0)
2251 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2252 warn("Couldn't get system interface list: %m");
2256 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2257 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2258 if (ifr->ifr_addr.sa_family != AF_INET)
2261 * Check that the interface is up, and not point-to-point or loopback.
2263 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2264 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2266 if ((ifreq.ifr_flags &
2267 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2268 != (IFF_UP|IFF_BROADCAST))
2271 * Get its netmask and check that it's on the right subnet.
2273 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2275 ina = INET_ADDR(ifr->ifr_addr);
2276 mask = INET_ADDR(ifreq.ifr_addr);
2277 if ((ipaddr & mask) == (ina & mask))
2282 warn("No suitable interface found for proxy ARP");
2287 info("found interface %s for proxy ARP", ifr->ifr_name);
2288 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2289 error("Couldn't get hardware address for %s", ifr->ifr_name);
2299 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2302 get_hw_addr_dlpi(name, hwaddr)
2304 struct sockaddr *hwaddr;
2307 int unit, iffd, adrlen;
2308 unsigned char *adrp;
2311 union DL_primitives prim;
2316 * We have to open the device and ask it for its hardware address.
2317 * First split apart the device name and unit.
2319 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2320 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2327 * Open the device and do a DLPI attach and phys_addr_req.
2329 iffd = open(ifdev, O_RDWR);
2331 error("Can't open %s: %m", ifdev);
2334 if (dlpi_attach(iffd, unit) < 0
2335 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2336 || dlpi_info_req(iffd) < 0
2337 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2342 adrlen = reply.prim.info_ack.dl_addr_length;
2343 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2345 #if DL_CURRENT_VERSION >= 2
2346 if (reply.prim.info_ack.dl_sap_length < 0)
2347 adrlen += reply.prim.info_ack.dl_sap_length;
2349 adrp += reply.prim.info_ack.dl_sap_length;
2352 hwaddr->sa_family = AF_UNSPEC;
2353 memcpy(hwaddr->sa_data, adrp, adrlen);
2358 * get_hw_addr - obtain the hardware address for a named interface.
2361 get_hw_addr(name, ina, hwaddr)
2364 struct sockaddr *hwaddr;
2366 /* New way - get the address by doing an arp request. */
2370 s = socket(AF_INET, SOCK_DGRAM, 0);
2373 memset(&req, 0, sizeof(req));
2374 req.arp_pa.sa_family = AF_INET;
2375 INET_ADDR(req.arp_pa) = ina;
2376 if (ioctl(s, SIOCGARP, &req) < 0) {
2377 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2380 *hwaddr = req.arp_ha;
2381 hwaddr->sa_family = AF_UNSPEC;
2387 dlpi_attach(fd, ppa)
2390 dl_attach_req_t req;
2393 req.dl_primitive = DL_ATTACH_REQ;
2395 buf.len = sizeof(req);
2396 buf.buf = (void *) &req;
2397 return putmsg(fd, &buf, NULL, RS_HIPRI);
2407 req.dl_primitive = DL_INFO_REQ;
2408 buf.len = sizeof(req);
2409 buf.buf = (void *) &req;
2410 return putmsg(fd, &buf, NULL, RS_HIPRI);
2414 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2415 union DL_primitives *reply;
2416 int fd, expected_prim, maxlen;
2423 * Use poll to wait for a message with a timeout.
2426 pfd.events = POLLIN | POLLPRI;
2428 n = poll(&pfd, 1, 1000);
2429 } while (n == -1 && errno == EINTR);
2436 buf.maxlen = maxlen;
2437 buf.buf = (void *) reply;
2439 if (getmsg(fd, &buf, NULL, &flags) < 0)
2442 if (buf.len < sizeof(ulong)) {
2444 dbglog("dlpi response short (len=%d)\n", buf.len);
2448 if (reply->dl_primitive == expected_prim)
2452 if (reply->dl_primitive == DL_ERROR_ACK) {
2453 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2454 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2455 reply->error_ack.dl_error_primitive);
2457 dbglog("dlpi unexpected response prim %x\n",
2458 reply->dl_primitive);
2466 * Return user specified netmask, modified by any mask we might determine
2467 * for address `addr' (in network byte order).
2468 * Here we scan through the system's list of interfaces, looking for
2469 * any non-point-to-point interfaces which might appear to be on the same
2470 * network as `addr'. If we find any, we OR in their netmask to the
2471 * user-specified netmask.
2477 u_int32_t mask, nmask, ina;
2478 struct ifreq *ifr, *ifend, ifreq;
2483 if (IN_CLASSA(addr)) /* determine network mask for address class */
2484 nmask = IN_CLASSA_NET;
2485 else if (IN_CLASSB(addr))
2486 nmask = IN_CLASSB_NET;
2488 nmask = IN_CLASSC_NET;
2489 /* class D nets are disallowed by bad_ip_adrs */
2490 mask = netmask | htonl(nmask);
2493 * Scan through the system's network interfaces.
2496 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2499 ifc.ifc_len = nif * sizeof(struct ifreq);
2500 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2501 if (ifc.ifc_buf == 0)
2503 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2504 warn("Couldn't get system interface list: %m");
2508 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2509 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2511 * Check the interface's internet address.
2513 if (ifr->ifr_addr.sa_family != AF_INET)
2515 ina = INET_ADDR(ifr->ifr_addr);
2516 if ((ntohl(ina) & nmask) != (addr & nmask))
2519 * Check that the interface is up, and not point-to-point or loopback.
2521 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2522 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2524 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2528 * Get its netmask and OR it into our mask.
2530 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2532 mask |= INET_ADDR(ifreq.ifr_addr);
2540 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2543 logwtmp(line, name, host)
2544 const char *line, *name, *host;
2546 static struct utmpx utmpx;
2550 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2551 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2552 strncpy(utmpx.ut_host, host, sizeof(utmpx.ut_host));
2553 if (*host != '\0') {
2554 utmpx.ut_syslen = strlen(host) + 1;
2555 if (utmpx.ut_syslen > sizeof(utmpx.ut_host))
2556 utmpx.ut_syslen = sizeof(utmpx.ut_host);
2558 utmpx.ut_pid = getpid();
2559 utmpx.ut_type = USER_PROCESS;
2561 utmpx.ut_type = DEAD_PROCESS;
2563 gettimeofday(&utmpx.ut_tv, NULL);
2564 updwtmpx("/var/adm/wtmpx", &utmpx);
2568 * get_host_seed - return the serial number of this machine.
2575 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2576 error("sysinfo: %m");
2579 return (int) strtoul(buf, NULL, 16);
2583 strioctl(fd, cmd, ptr, ilen, olen)
2584 int fd, cmd, ilen, olen;
2587 struct strioctl str;
2593 if (ioctl(fd, I_STR, &str) == -1)
2595 if (str.ic_len != olen)
2596 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2597 olen, str.ic_len, cmd);
2603 * lock - create a lock file for the named lock device
2606 #define LOCK_PREFIX "/var/spool/locks/LK."
2607 static char lock_file[40]; /* name of lock file created */
2617 if (stat(dev, &sbuf) < 0) {
2618 error("Can't get device number for %s: %m", dev);
2621 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2622 error("Can't lock %s: not a character device", dev);
2625 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2626 LOCK_PREFIX, major(sbuf.st_dev),
2627 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2629 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2631 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2632 /* Read the lock file to find out who has the device locked */
2633 n = read(fd, ascii_pid, 11);
2635 error("Can't read pid from lock file %s", lock_file);
2639 pid = atoi(ascii_pid);
2640 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2641 /* pid no longer exists - remove the lock file */
2642 if (unlink(lock_file) == 0) {
2644 notice("Removed stale lock on %s (pid %d)",
2648 warn("Couldn't remove stale lock on %s",
2651 notice("Device %s is locked by pid %d",
2656 error("Can't create lock file %s: %m", lock_file);
2661 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2662 write(fd, ascii_pid, 11);
2669 * unlock - remove our lockfile
2682 * cifroute - delete a route through the addresses given.
2685 cifroute(u, our, his)
2691 memset(&rt, 0, sizeof(rt));
2692 rt.rt_dst.sa_family = AF_INET;
2693 INET_ADDR(rt.rt_dst) = his;
2694 rt.rt_gateway.sa_family = AF_INET;
2695 INET_ADDR(rt.rt_gateway) = our;
2696 rt.rt_flags = RTF_HOST;
2698 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2699 error("Can't delete route: %m");
2707 * have_route_to - determine if the system has a route to the specified
2708 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2709 * `addr' is in network byte order.
2710 * For demand mode to work properly, we have to ignore routes
2711 * through our own interface.
2713 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2714 #define T_CURRENT MI_T_CURRENT
2722 int fd, r, flags, i;
2724 struct T_optmgmt_req req;
2728 struct T_optmgmt_ack ack;
2729 unsigned char space[64];
2732 struct strbuf cbuf, dbuf;
2734 mib2_ipRouteEntry_t routes[8];
2735 mib2_ipRouteEntry_t *rp;
2737 fd = open(mux_dev_name, O_RDWR);
2739 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2743 req.req.PRIM_type = T_OPTMGMT_REQ;
2744 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2745 req.req.OPT_length = sizeof(req.hdr);
2746 req.req.MGMT_flags = T_CURRENT;
2748 req.hdr.level = MIB2_IP;
2752 cbuf.buf = (char *) &req;
2753 cbuf.len = sizeof(req);
2755 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2756 warn("have_route_to: putmsg: %m");
2762 cbuf.buf = (char *) &ack;
2763 cbuf.maxlen = sizeof(ack);
2764 dbuf.buf = (char *) routes;
2765 dbuf.maxlen = sizeof(routes);
2767 r = getmsg(fd, &cbuf, &dbuf, &flags);
2769 warn("have_route_to: getmsg: %m");
2774 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2775 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2776 || ack.ack.MGMT_flags != T_SUCCESS
2777 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2778 dbglog("have_route_to: bad message len=%d prim=%d",
2779 cbuf.len, ack.ack.PRIM_type);
2784 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2785 if (rh->level == 0 && rh->name == 0)
2787 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2788 while (r == MOREDATA)
2789 r = getmsg(fd, NULL, &dbuf, &flags);
2794 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2795 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2796 if (rp->ipRouteMask != ~0) {
2797 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2798 rp->ipRouteDest, rp->ipRouteNextHop,
2800 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2801 && rp->ipRouteNextHop != remote_addr)
2807 r = getmsg(fd, NULL, &dbuf, &flags);
2818 * get_pty - get a pty master/slave pair and chown the slave side to
2819 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2822 get_pty(master_fdp, slave_fdp, slave_name, uid)
2831 mfd = open("/dev/ptmx", O_RDWR);
2833 error("Couldn't open pty master: %m");
2837 pty_name = ptsname(mfd);
2838 if (pty_name == NULL) {
2839 error("Couldn't get name of pty slave");
2843 if (chown(pty_name, uid, -1) < 0)
2844 warn("Couldn't change owner of pty slave: %m");
2845 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2846 warn("Couldn't change permissions on pty slave: %m");
2847 if (unlockpt(mfd) < 0)
2848 warn("Couldn't unlock pty slave: %m");
2850 sfd = open(pty_name, O_RDWR);
2852 error("Couldn't open pty slave %s: %m", pty_name);
2856 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2857 warn("Couldn't push ptem module on pty slave: %m");
2859 dbglog("Using %s", pty_name);
2860 strlcpy(slave_name, pty_name, MAXPATHLEN);