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_LLX_FROM_EUI64(l, s, eui64, as) do { \
192 s->sin6_addr.s6_addr32[0] = htonl(as); \
193 eui64_copy(eui64, s->sin6_addr.s6_addr32[2]); \
194 s->sin6_family = AF_INET6; \
195 l.lifr_addr.ss_family = AF_INET6; \
196 l.lifr_addrlen = 64; \
197 l.lifr_addr = laddr; \
200 #define _IN6A_LLX_FROM_EUI64(s, eui64, as) do { \
201 s->s6_addr32[0] = htonl(as); \
202 eui64_copy(eui64, s->s6_addr32[2]); \
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 #define IN6A_LLADDR_FROM_EUI64(s, eui64) \
212 _IN6A_LLX_FROM_EUI64(s, eui64, 0xfe800000)
214 #endif /* defined(INET6) && defined(SOL2) */
216 #if defined(INET6) && defined(SOL2)
217 static char first_ether_name[LIFNAMSIZ]; /* Solaris 8 and above */
219 static char first_ether_name[IFNAMSIZ]; /* Before Solaris 8 */
220 #define MAXIFS 256 /* Max # of interfaces */
221 #endif /* defined(INET6) && defined(SOL2) */
223 static int restore_term;
224 static struct termios inittermios;
226 static struct termiox inittermiox;
227 static int termiox_ok;
229 static struct winsize wsinfo; /* Initial window size info */
230 static pid_t tty_sid; /* original session ID for terminal */
232 extern u_char inpacket_buf[]; /* borrowed from main.c */
234 #define MAX_POLLFDS 32
235 static struct pollfd pollfds[MAX_POLLFDS];
236 static int n_pollfds;
238 static int link_mtu, link_mru;
241 static int tty_nmodules;
242 static char tty_modules[NMODULES][FMNAMESZ+1];
243 static int tty_npushed;
245 static int if_is_up; /* Interface has been marked up */
246 static u_int32_t remote_addr; /* IP address of peer */
247 static u_int32_t default_route_gateway; /* Gateway for default route added */
248 static eui64_t default_route_gateway6; /* Gateway for default IPv6 route added */
249 static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
251 /* Prototypes for procedures local to this file. */
252 static int translate_speed __P((int));
253 static int baud_rate_of __P((int));
254 static int get_ether_addr __P((u_int32_t, struct sockaddr *));
255 static int get_hw_addr __P((char *, u_int32_t, struct sockaddr *));
256 static int get_hw_addr_dlpi __P((char *, struct sockaddr *));
257 static int dlpi_attach __P((int, int));
258 static int dlpi_info_req __P((int));
259 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
260 static int strioctl __P((int, int, void *, int, int));
264 * sifppa - Sets interface ppa
266 * without setting the ppa, ip module will return EINVAL upon setting the
267 * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
268 * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
269 * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
270 * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
271 * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
272 * is required because the ppp DLPI provider advertises itself as
273 * a DLPI style 2 type, which requires a point of attachment to be
274 * specified. The only way the user can specify a point of attachment
275 * is via SIOCSLIFNAME or IF_UNITSEL.
277 * Such changes in the behavior of ip module was made to meet new or
278 * evolving standards requirements.
286 return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
290 #if defined(SOL2) && defined(INET6)
292 * get_first_ethernet - returns the first Ethernet interface name found in
293 * the system, or NULL if none is found
295 * NOTE: This is the lifreq version (Solaris 8 and above)
302 struct lifreq *plifreq;
304 int fd, num_ifs, i, found;
308 fd = socket(AF_INET, SOCK_DGRAM, 0);
314 * Find out how many interfaces are running
316 lifn.lifn_family = AF_UNSPEC;
317 lifn.lifn_flags = LIFC_NOXMIT;
318 if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
320 error("could not determine number of interfaces: %m");
324 num_ifs = lifn.lifn_count;
325 req_size = num_ifs * sizeof(struct lifreq);
326 req = malloc(req_size);
329 error("out of memory");
334 * Get interface configuration info for all interfaces
336 lifc.lifc_family = AF_UNSPEC;
337 lifc.lifc_flags = LIFC_NOXMIT;
338 lifc.lifc_len = req_size;
340 if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
343 error("SIOCGLIFCONF: %m");
348 * And traverse each interface to look specifically for the first
349 * occurence of an Ethernet interface which has been marked up
351 plifreq = lifc.lifc_req;
353 for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
355 if (strchr(plifreq->lifr_name, ':') != NULL)
358 memset(&lifr, 0, sizeof(lifr));
359 strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
360 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
363 error("SIOCGLIFFLAGS: %m");
366 fl = lifr.lifr_flags;
368 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
369 != (IFF_UP | IFF_BROADCAST))
379 strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
380 return (char *)first_ether_name;
386 * get_first_ethernet - returns the first Ethernet interface name found in
387 * the system, or NULL if none is found
389 * NOTE: This is the ifreq version (before Solaris 8).
395 struct ifreq *pifreq;
397 int fd, num_ifs, i, found;
401 fd = socket(AF_INET, SOCK_DGRAM, 0);
407 * Find out how many interfaces are running
409 if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
413 req_size = num_ifs * sizeof(struct ifreq);
414 req = malloc(req_size);
417 error("out of memory");
422 * Get interface configuration info for all interfaces
424 ifc.ifc_len = req_size;
426 if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
429 error("SIOCGIFCONF: %m");
434 * And traverse each interface to look specifically for the first
435 * occurence of an Ethernet interface which has been marked up
437 pifreq = ifc.ifc_req;
439 for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
441 if (strchr(pifreq->ifr_name, ':') != NULL)
444 memset(&ifr, 0, sizeof(ifr));
445 strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
446 if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
449 error("SIOCGIFFLAGS: %m");
454 if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
455 != (IFF_UP | IFF_BROADCAST))
465 strncpy(first_ether_name, ifr.ifr_name, sizeof(first_ether_name));
466 return (char *)first_ether_name;
470 #endif /* defined(SOL2) && defined(INET6) */
474 * get_if_hwaddr - get the hardware address for the specified
475 * network interface device.
478 get_if_hwaddr(u_char *addr, char *if_name)
480 struct sockaddr s_eth_addr;
481 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
487 * Send DL_INFO_REQ to the driver to solicit its MAC address
489 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
490 error("could not obtain hardware address for %s", if_name);
494 memcpy(addr, eth_addr->ether_addr_octet, 6);
499 #if defined(SOL2) && defined(INET6)
501 * slifname - Sets interface ppa and flags
503 * in addition to the comments stated in sifppa(), IFF_IPV6 bit must
504 * be set in order to declare this as an IPv6 interface
514 memset(&lifr, 0, sizeof(lifr));
515 ret = ioctl(fd, SIOCGLIFFLAGS, &lifr);
519 lifr.lifr_flags |= IFF_IPV6;
520 lifr.lifr_flags &= ~(IFF_BROADCAST | IFF_IPV4);
522 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
524 ret = ioctl(fd, SIOCSLIFNAME, &lifr);
534 * ether_to_eui64 - Convert 48-bit Ethernet address into 64-bit EUI
536 * walks the list of valid ethernet interfaces, and convert the first
537 * found 48-bit MAC address into EUI 64. caller also assumes that
538 * the system has a properly configured Ethernet interface for this
539 * function to return non-zero.
542 ether_to_eui64(eui64_t *p_eui64)
544 struct sockaddr s_eth_addr;
545 struct ether_addr *eth_addr = (struct ether_addr *)&s_eth_addr.sa_data;
548 if ((if_name = get_first_ethernet()) == NULL) {
549 error("no persistent id can be found");
554 * Send DL_INFO_REQ to the driver to solicit its MAC address
556 if (!get_hw_addr_dlpi(if_name, &s_eth_addr)) {
557 error("could not obtain hardware address for %s", if_name);
562 * And convert the EUI-48 into EUI-64, per RFC 2472 [sec 4.1]
564 p_eui64->e8[0] = (eth_addr->ether_addr_octet[0] & 0xFF) | 0x02;
565 p_eui64->e8[1] = (eth_addr->ether_addr_octet[1] & 0xFF);
566 p_eui64->e8[2] = (eth_addr->ether_addr_octet[2] & 0xFF);
567 p_eui64->e8[3] = 0xFF;
568 p_eui64->e8[4] = 0xFE;
569 p_eui64->e8[5] = (eth_addr->ether_addr_octet[3] & 0xFF);
570 p_eui64->e8[6] = (eth_addr->ether_addr_octet[4] & 0xFF);
571 p_eui64->e8[7] = (eth_addr->ether_addr_octet[5] & 0xFF);
575 #endif /* defined(SOL2) && defined(INET6) */
578 * sys_init - System-dependent initialization.
585 #if defined(INET6) && defined(SOL2)
588 #endif /* defined(INET6) && defined(SOL2) */
591 union DL_primitives prim;
594 #endif /* !defined(SOL2) */
596 ipfd = open(mux_dev_name, O_RDWR, 0);
598 fatal("Couldn't open IP device: %m");
600 #if defined(INET6) && defined(SOL2)
601 ip6fd = open(UDP6_DEV_NAME, O_RDWR, 0);
603 fatal("Couldn't open IP device (2): %m");
604 #endif /* defined(INET6) && defined(SOL2) */
606 if (default_device && !notty)
607 tty_sid = getsid((pid_t)0);
609 pppfd = open(PPP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);
611 fatal("Can't open %s: %m", PPP_DEV_NAME);
612 if (kdebugflag & 1) {
613 x = PPPDBG_LOG + PPPDBG_DRIVER;
614 strioctl(pppfd, PPPIO_DEBUG, &x, sizeof(int), 0);
617 /* Assign a new PPA and get its unit number. */
618 if (strioctl(pppfd, PPPIO_NEWPPA, &ifunit, 0, sizeof(int)) < 0)
619 fatal("Can't create new PPP interface: %m");
623 * Since sys_init() is called prior to ifname being set in main(),
624 * we need to get the ifname now, otherwise slifname(), and others,
625 * will fail, or maybe, I should move them to a later point ?
626 * <adi.masputra@sun.com>
628 sprintf(ifname, PPP_DRV_NAME "%d", ifunit);
629 #endif /* defined(SOL2) */
631 * Open the ppp device again and link it under the ip multiplexor.
632 * IP will assign a unit number which hopefully is the same as ifunit.
633 * I don't know any way to be certain they will be the same. :-(
635 ifd = open(PPP_DEV_NAME, O_RDWR, 0);
637 fatal("Can't open %s (2): %m", PPP_DEV_NAME);
638 if (kdebugflag & 1) {
639 x = PPPDBG_LOG + PPPDBG_DRIVER;
640 strioctl(ifd, PPPIO_DEBUG, &x, sizeof(int), 0);
643 #if defined(INET6) && defined(SOL2)
644 i6fd = open(PPP_DEV_NAME, O_RDWR, 0);
647 fatal("Can't open %s (3): %m", PPP_DEV_NAME);
649 if (kdebugflag & 1) {
650 x = PPPDBG_LOG + PPPDBG_DRIVER;
651 strioctl(i6fd, PPPIO_DEBUG, &x, sizeof(int), 0);
653 #endif /* defined(INET6) && defined(SOL2) */
656 if (ioctl(ifd, I_PUSH, IP_MOD_NAME) < 0) {
660 #endif /* defined(INET6) */
661 fatal("Can't push IP module: %m");
665 * Assign ppa according to the unit number returned by ppp device
666 * after plumbing is completed above.
668 if (sifppa(ifd, ifunit) < 0) {
672 #endif /* defined(INET6) */
673 fatal("Can't set ppa for unit %d: %m", ifunit);
678 * An IPv6 interface is created anyway, even when the user does not
679 * explicitly enable it. Note that the interface will be marked
680 * IPv6 during slifname().
682 if (ioctl(i6fd, I_PUSH, IP_MOD_NAME) < 0) {
685 fatal("Can't push IP module (2): %m");
689 * Assign ppa according to the unit number returned by ppp device
690 * after plumbing is completed above. In addition, mark the interface
691 * as an IPv6 interface.
693 if (slifname(i6fd, ifunit) < 0) {
696 fatal("Can't set ifname for unit %d: %m", ifunit);
698 #endif /* defined(INET6) */
700 ipmuxid = ioctl(ipfd, I_PLINK, ifd);
705 #endif /* defined(INET6) */
706 fatal("Can't I_PLINK PPP device to IP: %m");
709 memset(&ifr, 0, sizeof(ifr));
710 sprintf(ifr.ifr_name, "%s", ifname);
711 ifr.ifr_ip_muxid = ipmuxid;
714 * In Sol 8 and later, STREAMS dynamic module plumbing feature exists.
715 * This is so that an arbitrary module can be inserted, or deleted,
716 * between ip module and the device driver without tearing down the
717 * existing stream. Such feature requires the mux ids, which is set
718 * by SIOCSIFMUXID (or SIOCLSIFMUXID).
720 if (ioctl(ipfd, SIOCSIFMUXID, &ifr) < 0) {
721 ioctl(ipfd, I_PUNLINK, ipmuxid);
724 #endif /* defined(INET6) */
725 fatal("SIOCSIFMUXID: %m");
728 #else /* else if !defined(SOL2) */
730 if (dlpi_attach(ifd, ifunit) < 0 ||
731 dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
733 fatal("Can't attach to ppp%d: %m", ifunit);
736 ipmuxid = ioctl(ipfd, I_LINK, ifd);
739 fatal("Can't link PPP device to IP: %m");
740 #endif /* defined(SOL2) */
742 #if defined(INET6) && defined(SOL2)
743 ip6muxid = ioctl(ip6fd, I_PLINK, i6fd);
746 ioctl(ipfd, I_PUNLINK, ipmuxid);
747 fatal("Can't I_PLINK PPP device to IP (2): %m");
750 memset(&lifr, 0, sizeof(lifr));
751 sprintf(lifr.lifr_name, "%s", ifname);
752 lifr.lifr_ip_muxid = ip6muxid;
755 * Let IP know of the mux id [see comment for SIOCSIFMUXID above]
757 if (ioctl(ip6fd, SIOCSLIFMUXID, &lifr) < 0) {
758 ioctl(ipfd, I_PUNLINK, ipmuxid);
759 ioctl(ip6fd, I_PUNLINK, ip6muxid);
760 fatal("Can't link PPP device to IP (2): %m");
762 #endif /* defined(INET6) && defined(SOL2) */
765 /* Set the interface name for the link. */
766 slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), PPP_DRV_NAME "%d", ifunit);
767 ifr.ifr_metric = ipmuxid;
768 if (strioctl(ipfd, SIOCSIFNAME, (char *)&ifr, sizeof ifr, 0) < 0)
769 fatal("Can't set interface name %s: %m", ifr.ifr_name);
770 #endif /* !defined(SOL2) */
776 * sys_cleanup - restore any system state we modified before exiting:
777 * mark the interface down, delete default route and/or proxy arp entry.
778 * This should call die() because it's called from die().
787 #endif /* defined(INET6) */
788 #endif /* defined(SOL2) */
790 #if defined(SOL2) && defined(INET6)
793 #endif /* defined(SOL2) && defined(INET6) */
796 if (default_route_gateway)
797 cifdefaultroute(0, default_route_gateway, default_route_gateway);
798 if (default_route_gateway6)
799 cif6defaultroute(0, default_route_gateway6, default_route_gateway6);
801 cifproxyarp(0, proxy_arp_addr);
804 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
805 * unlink and re-link the modules, causing the muxid to change.
807 memset(&ifr, 0, sizeof(ifr));
808 sprintf(ifr.ifr_name, "%s", ifname);
809 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
810 error("SIOCGIFFLAGS: %m");
814 if (ioctl(ipfd, SIOCGIFMUXID, &ifr) < 0) {
815 error("SIOCGIFMUXID: %m");
819 ipmuxid = ifr.ifr_ip_muxid;
821 if (ioctl(ipfd, I_PUNLINK, ipmuxid) < 0) {
822 error("Can't I_PUNLINK PPP from IP: %m");
827 * Make sure we ask ip what the muxid, because 'ifconfig modlist' will
828 * unlink and re-link the modules, causing the muxid to change.
830 memset(&lifr, 0, sizeof(lifr));
831 sprintf(lifr.lifr_name, "%s", ifname);
832 if (ioctl(ip6fd, SIOCGLIFFLAGS, &lifr) < 0) {
833 error("SIOCGLIFFLAGS: %m");
837 if (ioctl(ip6fd, SIOCGLIFMUXID, &lifr) < 0) {
838 error("SIOCGLIFMUXID: %m");
842 ip6muxid = lifr.lifr_ip_muxid;
844 if (ioctl(ip6fd, I_PUNLINK, ip6muxid) < 0) {
845 error("Can't I_PUNLINK PPP from IP (2): %m");
847 #endif /* defined(INET6) */
848 #endif /* defined(SOL2) */
852 * sys_close - Clean up in a child process before execing.
858 #if defined(INET6) && defined(SOL2)
860 #endif /* defined(INET6) && defined(SOL2) */
866 * sys_check_options - check the options that the user specified
876 * daemon - Detach us from controlling terminal session.
879 daemon(nochdir, noclose)
880 int nochdir, noclose;
884 if ((pid = fork()) < 0)
887 exit(0); /* parent dies */
892 fclose(stdin); /* don't need stdin, stdout, stderr */
901 * ppp_available - check whether the system has any ppp interfaces
908 return stat(PPP_DEV_NAME, &buf) >= 0;
912 * any_compressions - see if compression is enabled or not
914 * In the STREAMS implementation of kernel-portion pppd,
915 * the comp STREAMS module performs the ACFC, PFC, as well
916 * CCP and VJ compressions. However, if the user has explicitly
917 * declare to not enable them from the command line, there is
918 * no point of having the comp module be pushed on the stream.
923 if ((!lcp_wantoptions[0].neg_accompression) &&
924 (!lcp_wantoptions[0].neg_pcompression) &&
925 (!ccp_protent.enabled_flag) &&
926 (!ipcp_wantoptions[0].neg_vj)) {
933 * tty_establish_ppp - Turn the serial port into a ppp interface.
936 tty_establish_ppp(fd)
941 /* Pop any existing modules off the tty stream. */
943 if (ioctl(fd, I_LOOK, tty_modules[i]) < 0
944 || strcmp(tty_modules[i], "ptem") == 0
945 || ioctl(fd, I_POP, 0) < 0)
949 /* Push the async hdlc module and the compressor module. */
953 if (ioctl(fd, I_PUSH, AHDLC_MOD_NAME) < 0) {
954 error("Couldn't push PPP Async HDLC module: %m");
959 if (kdebugflag & 4) {
960 i = PPPDBG_LOG + PPPDBG_AHDLC;
961 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
964 * There's no need to push comp module if we don't intend
965 * to compress anything
967 if (any_compressions()) {
968 if (ioctl(fd, I_PUSH, COMP_MOD_NAME) < 0)
969 error("Couldn't push PPP compression module: %m");
974 if (kdebugflag & 2) {
976 if (any_compressions())
978 strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
981 /* Link the serial port under the PPP multiplexor. */
982 if ((fdmuxid = ioctl(pppfd, I_LINK, fd)) < 0) {
983 error("Can't link tty to PPP mux: %m");
991 * tty_disestablish_ppp - Restore the serial port to normal operation.
992 * It attempts to reconstruct the stream with the previously popped
993 * modules. This shouldn't call die() because it's called from die().
996 tty_disestablish_ppp(fd)
1002 if (ioctl(pppfd, I_UNLINK, fdmuxid) < 0) {
1004 error("Can't unlink tty from PPP mux: %m");
1009 while (tty_npushed > 0 && ioctl(fd, I_POP, 0) >= 0)
1011 for (i = tty_nmodules - 1; i >= 0; --i)
1012 if (ioctl(fd, I_PUSH, tty_modules[i]) < 0)
1013 error("Couldn't restore tty module %s: %m",
1016 if (hungup && default_device && tty_sid > 0) {
1018 * If we have received a hangup, we need to send a SIGHUP
1019 * to the terminal's controlling process. The reason is
1020 * that the original stream head for the terminal hasn't
1021 * seen the M_HANGUP message (it went up through the ppp
1022 * driver to the stream head for our fd to /dev/ppp).
1024 kill(tty_sid, SIGHUP);
1030 * Check whether the link seems not to be 8-bit clean.
1038 if (strioctl(pppfd, PPPIO_GCLEAN, &x, 0, sizeof(x)) < 0)
1043 s = "bit 7 set to 1";
1046 s = "bit 7 set to 0";
1056 warn("Serial link is not 8-bit clean:");
1057 warn("All received characters had %s", s);
1062 * List of valid speeds.
1065 int speed_int, speed_val;
1134 { 115200, B115200 },
1137 { 153600, B153600 },
1140 { 230400, B230400 },
1143 { 307200, B307200 },
1146 { 460800, B460800 },
1152 * Translate from bits/second to a speed_t.
1155 translate_speed(bps)
1158 struct speed *speedp;
1162 for (speedp = speeds; speedp->speed_int; speedp++)
1163 if (bps == speedp->speed_int)
1164 return speedp->speed_val;
1165 warn("speed %d not supported", bps);
1170 * Translate from a speed_t to bits/second.
1176 struct speed *speedp;
1180 for (speedp = speeds; speedp->speed_int; speedp++)
1181 if (speed == speedp->speed_val)
1182 return speedp->speed_int;
1187 * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
1188 * at the requested speed, etc. If `local' is true, set CLOCAL
1189 * regardless of whether the modem option was specified.
1192 set_up_tty(fd, local)
1196 struct termios tios;
1197 #if !defined (CRTSCTS)
1198 struct termiox tiox;
1201 if (!sync_serial && tcgetattr(fd, &tios) < 0)
1202 fatal("tcgetattr: %m");
1206 if (!sync_serial && ioctl (fd, TCGETX, &tiox) < 0) {
1208 if (errno != ENOTTY)
1209 error("TCGETX: %m");
1213 if (!restore_term) {
1219 ioctl(fd, TIOCGWINSZ, &wsinfo);
1222 tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
1225 tios.c_cflag |= CRTSCTS;
1226 else if (crtscts < 0)
1227 tios.c_cflag &= ~CRTSCTS;
1229 if (crtscts != 0 && !termiox_ok) {
1230 error("Can't set RTS/CTS flow control");
1231 } else if (crtscts > 0) {
1232 tiox.x_hflag |= RTSXOFF|CTSXON;
1233 } else if (crtscts < 0) {
1234 tiox.x_hflag &= ~(RTSXOFF|CTSXON);
1239 tios.c_cflag |= CSTOPB;
1241 tios.c_cflag |= CS8 | CREAD | HUPCL;
1242 if (local || !modem)
1243 tios.c_cflag |= CLOCAL;
1244 tios.c_iflag = IGNBRK | IGNPAR;
1247 tios.c_cc[VMIN] = 1;
1248 tios.c_cc[VTIME] = 0;
1250 if (crtscts == -2) {
1251 tios.c_iflag |= IXON | IXOFF;
1252 tios.c_cc[VSTOP] = 0x13; /* DC3 = XOFF = ^S */
1253 tios.c_cc[VSTART] = 0x11; /* DC1 = XON = ^Q */
1256 speed = translate_speed(inspeed);
1258 cfsetospeed(&tios, speed);
1259 cfsetispeed(&tios, speed);
1261 speed = cfgetospeed(&tios);
1263 * We can't proceed if the serial port speed is 0,
1264 * since that implies that the serial port is disabled.
1266 if ((speed == B0) && !sync_serial)
1267 fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
1270 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
1271 fatal("tcsetattr: %m");
1274 if (!sync_serial && termiox_ok && ioctl (fd, TCSETXF, &tiox) < 0){
1275 error("TCSETXF: %m");
1279 baud_rate = inspeed = baud_rate_of(speed);
1285 * restore_tty - restore the terminal to the saved settings.
1292 if (!default_device) {
1294 * Turn off echoing, because otherwise we can get into
1295 * a loop with the tty and the modem echoing to each other.
1296 * We presume we are the sole user of this tty device, so
1297 * when we close it, it will revert to its defaults anyway.
1299 inittermios.c_lflag &= ~(ECHO | ECHONL);
1301 if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
1302 if (!hungup && errno != ENXIO)
1303 warn("tcsetattr: %m");
1305 if (!sync_serial && ioctl (fd, TCSETXF, &inittermiox) < 0){
1306 if (!hungup && errno != ENXIO)
1307 error("TCSETXF: %m");
1311 ioctl(fd, TIOCSWINSZ, &wsinfo);
1317 * setdtr - control the DTR line on the serial port.
1318 * This is called from die(), so it shouldn't call die().
1324 int modembits = TIOCM_DTR;
1326 ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
1330 * open_loopback - open the device we use for getting packets
1331 * in demand mode. Under Solaris 2, we use our existing fd
1332 * to the ppp driver.
1341 * output - Output PPP packet.
1344 output(unit, p, len)
1353 dump_packet("sent", p, len);
1354 if (snoop_send_hook) snoop_send_hook(p, len);
1357 data.buf = (caddr_t) p;
1359 while (putmsg(pppfd, NULL, &data, 0) < 0) {
1360 if (--retries < 0 || (errno != EWOULDBLOCK && errno != EAGAIN)) {
1362 error("Couldn't send packet: %m");
1366 pfd.events = POLLOUT;
1367 poll(&pfd, 1, 250); /* wait for up to 0.25 seconds */
1373 * wait_input - wait until there is data available,
1374 * for the length of time specified by *timo (indefinite
1379 struct timeval *timo;
1383 t = timo == NULL? -1: timo->tv_sec * 1000 + timo->tv_usec / 1000;
1384 if (poll(pollfds, n_pollfds, t) < 0 && errno != EINTR)
1389 * add_fd - add an fd to the set that wait_input waits for.
1396 for (n = 0; n < n_pollfds; ++n)
1397 if (pollfds[n].fd == fd)
1399 if (n_pollfds < MAX_POLLFDS) {
1400 pollfds[n_pollfds].fd = fd;
1401 pollfds[n_pollfds].events = POLLIN | POLLPRI | POLLHUP;
1404 error("Too many inputs!");
1408 * remove_fd - remove an fd from the set that wait_input waits for.
1415 for (n = 0; n < n_pollfds; ++n) {
1416 if (pollfds[n].fd == fd) {
1417 while (++n < n_pollfds)
1418 pollfds[n-1] = pollfds[n];
1427 * wait_loop_output - wait until there is data available on the
1428 * loopback, for the length of time specified by *timo (indefinite
1432 wait_loop_output(timo)
1433 struct timeval *timo;
1439 * wait_time - wait for a given length of time or until a
1440 * signal is received.
1444 struct timeval *timo;
1448 n = select(0, NULL, NULL, NULL, timo);
1449 if (n < 0 && errno != EINTR)
1450 fatal("select: %m");
1456 * read_packet - get a PPP packet from the serial device.
1462 struct strbuf ctrl, data;
1464 unsigned char ctrlbuf[sizeof(union DL_primitives) + 64];
1467 data.maxlen = PPP_MRU + PPP_HDRLEN;
1468 data.buf = (caddr_t) buf;
1469 ctrl.maxlen = sizeof(ctrlbuf);
1470 ctrl.buf = (caddr_t) ctrlbuf;
1472 len = getmsg(pppfd, &ctrl, &data, &flags);
1474 if (errno == EAGAIN || errno == EINTR)
1476 fatal("Error reading packet: %m");
1483 * Got a M_PROTO or M_PCPROTO message. Interpret it
1484 * as a DLPI primitive??
1487 dbglog("got dlpi prim 0x%x, len=%d",
1488 ((union DL_primitives *)ctrlbuf)->dl_primitive, ctrl.len);
1494 * get_loop_output - get outgoing packets from the ppp device,
1495 * and detect when we want to bring the real link up.
1496 * Return value is 1 if we need to bring up the link, 0 otherwise.
1504 while ((len = read_packet(inpacket_buf)) > 0) {
1505 if (loop_frame(inpacket_buf, len))
1512 * netif_set_mtu - set the MTU on the PPP network interface.
1515 netif_set_mtu(unit, mtu)
1519 #if defined(INET6) && defined(SOL2)
1522 #endif /* defined(INET6) && defined(SOL2) */
1524 memset(&ifr, 0, sizeof(ifr));
1525 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1526 ifr.ifr_metric = link_mtu;
1527 if (ioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
1528 error("Couldn't set IP MTU (%s): %m", ifr.ifr_name);
1531 #if defined(INET6) && defined(SOL2)
1532 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1534 error("Couldn't open IPv6 socket: %m");
1536 memset(&lifr, 0, sizeof(lifr));
1537 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1538 lifr.lifr_mtu = link_mtu;
1539 if (ioctl(fd, SIOCSLIFMTU, &lifr) < 0) {
1541 error("Couldn't set IPv6 MTU (%s): %m", ifr.ifr_name);
1544 #endif /* defined(INET6) && defined(SOL2) */
1548 * tty_send_config - configure the transmit characteristics of
1549 * the ppp interface.
1552 tty_send_config(mtu, asyncmap, pcomp, accomp)
1560 if (strioctl(pppfd, PPPIO_MTU, &mtu, sizeof(mtu), 0) < 0) {
1561 if (hungup && errno == ENXIO) {
1565 error("Couldn't set MTU: %m");
1569 if (strioctl(pppfd, PPPIO_XACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1570 error("Couldn't set transmit ACCM: %m");
1572 cf[0] = (pcomp? COMP_PROT: 0) + (accomp? COMP_AC: 0);
1573 cf[1] = COMP_PROT | COMP_AC;
1574 if (any_compressions() &&
1575 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1576 error("Couldn't set prot/AC compression: %m");
1581 * tty_set_xaccm - set the extended transmit ACCM for the interface.
1591 && strioctl(pppfd, PPPIO_XACCM, accm, sizeof(ext_accm), 0) < 0) {
1592 if (!hungup || errno != ENXIO)
1593 warn("Couldn't set extended ACCM: %m");
1598 * tty_recv_config - configure the receive-side characteristics of
1599 * the ppp interface.
1602 tty_recv_config(mru, asyncmap, pcomp, accomp)
1610 if (strioctl(pppfd, PPPIO_MRU, &mru, sizeof(mru), 0) < 0) {
1611 if (hungup && errno == ENXIO) {
1615 error("Couldn't set MRU: %m");
1619 if (strioctl(pppfd, PPPIO_RACCM, &asyncmap, sizeof(asyncmap), 0) < 0)
1620 error("Couldn't set receive ACCM: %m");
1622 cf[0] = (pcomp? DECOMP_PROT: 0) + (accomp? DECOMP_AC: 0);
1623 cf[1] = DECOMP_PROT | DECOMP_AC;
1624 if (any_compressions() &&
1625 strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0)
1626 error("Couldn't set prot/AC decompression: %m");
1631 * ccp_test - ask kernel whether a given compression method
1632 * is acceptable for use.
1635 ccp_test(unit, opt_ptr, opt_len, for_transmit)
1636 int unit, opt_len, for_transmit;
1639 if (strioctl(pppfd, (for_transmit? PPPIO_XCOMP: PPPIO_RCOMP),
1640 opt_ptr, opt_len, 0) >= 0)
1642 return (errno == ENOSR)? 0: -1;
1646 * ccp_flags_set - inform kernel about the current state of CCP.
1649 ccp_flags_set(unit, isopen, isup)
1650 int unit, isopen, isup;
1654 cf[0] = (isopen? CCP_ISOPEN: 0) + (isup? CCP_ISUP: 0);
1655 cf[1] = CCP_ISOPEN | CCP_ISUP | CCP_ERROR | CCP_FATALERROR;
1656 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1657 if (!hungup || errno != ENXIO)
1658 error("Couldn't set kernel CCP state: %m");
1663 * get_idle_time - return how long the link has been idle.
1666 get_idle_time(u, ip)
1668 struct ppp_idle *ip;
1670 return strioctl(pppfd, PPPIO_GIDLE, ip, 0, sizeof(struct ppp_idle)) >= 0;
1674 * get_ppp_stats - return statistics for the link.
1677 get_ppp_stats(u, stats)
1679 struct pppd_stats *stats;
1684 strioctl(pppfd, PPPIO_GETSTAT, &s, 0, sizeof(s)) < 0) {
1685 error("Couldn't get link statistics: %m");
1688 stats->bytes_in = s.p.ppp_ibytes;
1689 stats->bytes_out = s.p.ppp_obytes;
1690 stats->pkts_in = s.p.ppp_ipackets;
1691 stats->pkts_out = s.p.ppp_opackets;
1697 * set_filters - transfer the pass and active filters to the kernel.
1700 set_filters(pass, active)
1701 struct bpf_program *pass, *active;
1705 if (pass->bf_len > 0) {
1706 if (strioctl(pppfd, PPPIO_PASSFILT, pass,
1707 sizeof(struct bpf_program), 0) < 0) {
1708 error("Couldn't set pass-filter in kernel: %m");
1712 if (active->bf_len > 0) {
1713 if (strioctl(pppfd, PPPIO_ACTIVEFILT, active,
1714 sizeof(struct bpf_program), 0) < 0) {
1715 error("Couldn't set active-filter in kernel: %m");
1724 * ccp_fatal_error - returns 1 if decompression was disabled as a
1725 * result of an error detected after decompression of a packet,
1726 * 0 otherwise. This is necessary because of patent nonsense.
1729 ccp_fatal_error(unit)
1735 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1736 if (errno != ENXIO && errno != EINVAL)
1737 error("Couldn't get compression flags: %m");
1740 return cf[0] & CCP_FATALERROR;
1744 * sifvjcomp - config tcp header compression
1747 sifvjcomp(u, vjcomp, xcidcomp, xmaxcid)
1748 int u, vjcomp, xcidcomp, xmaxcid;
1754 maxcid[0] = xcidcomp;
1755 maxcid[1] = 15; /* XXX should be rmaxcid */
1756 if (strioctl(pppfd, PPPIO_VJINIT, maxcid, sizeof(maxcid), 0) < 0) {
1757 error("Couldn't initialize VJ compression: %m");
1761 cf[0] = (vjcomp? COMP_VJC + DECOMP_VJC: 0) /* XXX this is wrong */
1762 + (xcidcomp? COMP_VJCCID + DECOMP_VJCCID: 0);
1763 cf[1] = COMP_VJC + DECOMP_VJC + COMP_VJCCID + DECOMP_VJCCID;
1764 if (strioctl(pppfd, PPPIO_CFLAGS, cf, sizeof(cf), sizeof(int)) < 0) {
1766 error("Couldn't enable VJ compression: %m");
1773 * sifup - Config the interface up and enable IP packets to pass.
1781 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1782 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1783 error("Couldn't mark interface up (get): %m");
1786 ifr.ifr_flags |= IFF_UP;
1787 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1788 error("Couldn't mark interface up (set): %m");
1796 * sifdown - Config the interface down and disable IP.
1806 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
1807 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
1808 error("Couldn't mark interface down (get): %m");
1811 ifr.ifr_flags &= ~IFF_UP;
1812 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
1813 error("Couldn't mark interface down (set): %m");
1821 * sifnpmode - Set the mode for handling packets for a given NP.
1824 sifnpmode(u, proto, mode)
1832 npi[1] = (int) mode;
1833 if (strioctl(pppfd, PPPIO_NPMODE, &npi, 2 * sizeof(int), 0) < 0) {
1834 error("ioctl(set NP %d mode to %d): %m", proto, mode);
1840 #if defined(SOL2) && defined(INET6)
1842 * sif6up - Config the IPv6 interface up and enable IPv6 packets to pass.
1851 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1856 memset(&lifr, 0, sizeof(lifr));
1857 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1858 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1863 lifr.lifr_flags |= IFF_UP;
1864 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1865 if (ioctl(fd, SIOCSLIFFLAGS, &lifr) < 0) {
1876 * sifdown - Config the IPv6 interface down and disable IPv6.
1885 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1889 memset(&lifr, 0, sizeof(lifr));
1890 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1891 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1896 lifr.lifr_flags &= ~IFF_UP;
1897 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1898 if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
1909 * sif6addr - Config the interface with an IPv6 link-local address
1917 struct sockaddr_storage laddr;
1918 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&laddr;
1921 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1925 memset(&lifr, 0, sizeof(lifr));
1926 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1929 * Do this because /dev/ppp responds to DL_PHYS_ADDR_REQ with
1930 * zero values, hence the interface token came to be zero too,
1931 * and without this, in.ndpd will complain
1933 IN6_LLTOKEN_FROM_EUI64(lifr, sin6, o);
1934 if (ioctl(fd, SIOCSLIFTOKEN, &lifr) < 0) {
1940 * Set the interface address and destination address
1942 IN6_LLADDR_FROM_EUI64(lifr, sin6, o);
1943 if (ioctl(fd, SIOCSLIFADDR, &lifr) < 0) {
1948 memset(&lifr, 0, sizeof(lifr));
1949 strlcpy(lifr.lifr_name, ifname, sizeof(lifr.lifr_name));
1950 IN6_LLADDR_FROM_EUI64(lifr, sin6, h);
1951 if (ioctl(fd, SIOCSLIFDSTADDR, &lifr) < 0) {
1960 * cif6addr - Remove the IPv6 address from interface
1971 * sif6defaultroute - assign a default route through the address given.
1974 sif6defaultroute(u, l, g)
1980 #if defined(__USLC__)
1981 g = l; /* use the local address as gateway */
1983 memset(&rt, 0, sizeof(rt));
1984 memset(&rt.rtmsg_dst, 0, sizeof(rt.rtmsg_dst));
1985 rt.rtmsg_dst_len = 0;
1986 IN6A_LLADDR_FROM_EUI64(&rt.rtmsg_gateway, g);
1987 rt.rtmsg_flags = RTF_GATEWAY;
1989 if (ioctl(ip6fd, SIOCADDRT, &rt) < 0) {
1990 error("Can't add default route: %m");
1994 default_route_gateway6 = g;
1999 * cif6defaultroute - delete a default route through the address given.
2002 cif6defaultroute(u, l, g)
2008 #if defined(__USLC__)
2009 g = l; /* use the local address as gateway */
2011 memset(&rt, 0, sizeof(rt));
2012 memset(&rt.rtmsg_dst, 0, sizeof(rt.rtmsg_dst));
2013 rt.rtmsg_dst_len = 0;
2014 IN6A_LLADDR_FROM_EUI64(&rt.rtmsg_gateway, g);
2015 rt.rtmsg_flags = RTF_GATEWAY;
2017 if (ioctl(ip6fd, SIOCDELRT, &rt) < 0) {
2018 error("Can't delete default route: %m");
2022 default_route_gateway6 = 0;
2026 #endif /* defined(SOL2) && defined(INET6) */
2029 #define INET_ADDR(x) (((struct sockaddr_in *) &(x))->sin_addr.s_addr)
2032 * sifaddr - Config the interface IP addresses and netmask.
2042 memset(&ifr, 0, sizeof(ifr));
2043 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
2044 ifr.ifr_addr.sa_family = AF_INET;
2045 INET_ADDR(ifr.ifr_addr) = m;
2046 if (ioctl(ipfd, SIOCSIFNETMASK, &ifr) < 0) {
2047 error("Couldn't set IP netmask: %m");
2050 ifr.ifr_addr.sa_family = AF_INET;
2051 INET_ADDR(ifr.ifr_addr) = o;
2052 if (ioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
2053 error("Couldn't set local IP address: %m");
2058 * On some systems, we have to explicitly set the point-to-point
2059 * flag bit before we can set a destination address.
2061 if (ioctl(ipfd, SIOCGIFFLAGS, &ifr) >= 0
2062 && (ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
2063 ifr.ifr_flags |= IFF_POINTOPOINT;
2064 if (ioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2065 error("Couldn't mark interface pt-to-pt: %m");
2069 ifr.ifr_dstaddr.sa_family = AF_INET;
2070 INET_ADDR(ifr.ifr_dstaddr) = h;
2071 if (ioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2072 error("Couldn't set remote IP address: %m");
2081 * cifaddr - Clear the interface IP addresses, and delete routes
2082 * through the interface if possible.
2089 #if defined(__USLC__) /* was: #if 0 */
2090 cifroute(unit, ouraddr, hisaddr);
2092 notice("Removing ppp interface unit");
2093 if (ioctl(ipfd, I_UNLINK, ipmuxid) < 0) {
2094 error("Can't remove ppp interface unit: %m");
2105 * sifdefaultroute - assign a default route through the address given.
2108 sifdefaultroute(u, l, g)
2114 #if defined(__USLC__)
2115 g = l; /* use the local address as gateway */
2117 memset(&rt, 0, sizeof(rt));
2118 rt.rt_dst.sa_family = AF_INET;
2119 INET_ADDR(rt.rt_dst) = 0;
2120 rt.rt_gateway.sa_family = AF_INET;
2121 INET_ADDR(rt.rt_gateway) = g;
2122 rt.rt_flags = RTF_GATEWAY;
2124 if (ioctl(ipfd, SIOCADDRT, &rt) < 0) {
2125 error("Can't add default route: %m");
2129 default_route_gateway = g;
2134 * cifdefaultroute - delete a default route through the address given.
2137 cifdefaultroute(u, l, g)
2143 #if defined(__USLC__)
2144 g = l; /* use the local address as gateway */
2146 memset(&rt, 0, sizeof(rt));
2147 rt.rt_dst.sa_family = AF_INET;
2148 INET_ADDR(rt.rt_dst) = 0;
2149 rt.rt_gateway.sa_family = AF_INET;
2150 INET_ADDR(rt.rt_gateway) = g;
2151 rt.rt_flags = RTF_GATEWAY;
2153 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2154 error("Can't delete default route: %m");
2158 default_route_gateway = 0;
2163 * sifproxyarp - Make a proxy ARP entry for the peer.
2166 sifproxyarp(unit, hisaddr)
2170 struct arpreq arpreq;
2172 memset(&arpreq, 0, sizeof(arpreq));
2173 if (!get_ether_addr(hisaddr, &arpreq.arp_ha))
2176 arpreq.arp_pa.sa_family = AF_INET;
2177 INET_ADDR(arpreq.arp_pa) = hisaddr;
2178 arpreq.arp_flags = ATF_PERM | ATF_PUBL;
2179 if (ioctl(ipfd, SIOCSARP, (caddr_t) &arpreq) < 0) {
2180 error("Couldn't set proxy ARP entry: %m");
2184 proxy_arp_addr = hisaddr;
2189 * cifproxyarp - Delete the proxy ARP entry for the peer.
2192 cifproxyarp(unit, hisaddr)
2196 struct arpreq arpreq;
2198 memset(&arpreq, 0, sizeof(arpreq));
2199 arpreq.arp_pa.sa_family = AF_INET;
2200 INET_ADDR(arpreq.arp_pa) = hisaddr;
2201 if (ioctl(ipfd, SIOCDARP, (caddr_t)&arpreq) < 0) {
2202 error("Couldn't delete proxy ARP entry: %m");
2211 * get_ether_addr - get the hardware address of an interface on the
2212 * the same subnet as ipaddr.
2217 get_ether_addr(ipaddr, hwaddr)
2219 struct sockaddr *hwaddr;
2221 struct ifreq *ifr, *ifend, ifreq;
2224 u_int32_t ina, mask;
2227 * Scan through the system's network interfaces.
2230 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2233 ifc.ifc_len = nif * sizeof(struct ifreq);
2234 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2235 if (ifc.ifc_buf == 0)
2237 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2238 warn("Couldn't get system interface list: %m");
2242 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2243 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2244 if (ifr->ifr_addr.sa_family != AF_INET)
2247 * Check that the interface is up, and not point-to-point or loopback.
2249 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2250 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2252 if ((ifreq.ifr_flags &
2253 (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
2254 != (IFF_UP|IFF_BROADCAST))
2257 * Get its netmask and check that it's on the right subnet.
2259 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2261 ina = INET_ADDR(ifr->ifr_addr);
2262 mask = INET_ADDR(ifreq.ifr_addr);
2263 if ((ipaddr & mask) == (ina & mask))
2268 warn("No suitable interface found for proxy ARP");
2273 info("found interface %s for proxy ARP", ifr->ifr_name);
2274 if (!get_hw_addr(ifr->ifr_name, ina, hwaddr)) {
2275 error("Couldn't get hardware address for %s", ifr->ifr_name);
2285 * get_hw_addr_dlpi - obtain the hardware address using DLPI
2288 get_hw_addr_dlpi(name, hwaddr)
2290 struct sockaddr *hwaddr;
2293 int unit, iffd, adrlen;
2294 unsigned char *adrp;
2297 union DL_primitives prim;
2302 * We have to open the device and ask it for its hardware address.
2303 * First split apart the device name and unit.
2305 slprintf(ifdev, sizeof(ifdev), "/dev/%s", name);
2306 for (q = ifdev + strlen(ifdev); --q >= ifdev; )
2313 * Open the device and do a DLPI attach and phys_addr_req.
2315 iffd = open(ifdev, O_RDWR);
2317 error("Can't open %s: %m", ifdev);
2320 if (dlpi_attach(iffd, unit) < 0
2321 || dlpi_get_reply(iffd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0
2322 || dlpi_info_req(iffd) < 0
2323 || dlpi_get_reply(iffd, &reply.prim, DL_INFO_ACK, sizeof(reply)) < 0) {
2328 adrlen = reply.prim.info_ack.dl_addr_length;
2329 adrp = (unsigned char *)&reply + reply.prim.info_ack.dl_addr_offset;
2331 #if DL_CURRENT_VERSION >= 2
2332 if (reply.prim.info_ack.dl_sap_length < 0)
2333 adrlen += reply.prim.info_ack.dl_sap_length;
2335 adrp += reply.prim.info_ack.dl_sap_length;
2338 hwaddr->sa_family = AF_UNSPEC;
2339 memcpy(hwaddr->sa_data, adrp, adrlen);
2344 * get_hw_addr - obtain the hardware address for a named interface.
2347 get_hw_addr(name, ina, hwaddr)
2350 struct sockaddr *hwaddr;
2352 /* New way - get the address by doing an arp request. */
2356 s = socket(AF_INET, SOCK_DGRAM, 0);
2359 memset(&req, 0, sizeof(req));
2360 req.arp_pa.sa_family = AF_INET;
2361 INET_ADDR(req.arp_pa) = ina;
2362 if (ioctl(s, SIOCGARP, &req) < 0) {
2363 error("Couldn't get ARP entry for %s: %m", ip_ntoa(ina));
2366 *hwaddr = req.arp_ha;
2367 hwaddr->sa_family = AF_UNSPEC;
2373 dlpi_attach(fd, ppa)
2376 dl_attach_req_t req;
2379 req.dl_primitive = DL_ATTACH_REQ;
2381 buf.len = sizeof(req);
2382 buf.buf = (void *) &req;
2383 return putmsg(fd, &buf, NULL, RS_HIPRI);
2393 req.dl_primitive = DL_INFO_REQ;
2394 buf.len = sizeof(req);
2395 buf.buf = (void *) &req;
2396 return putmsg(fd, &buf, NULL, RS_HIPRI);
2400 dlpi_get_reply(fd, reply, expected_prim, maxlen)
2401 union DL_primitives *reply;
2402 int fd, expected_prim, maxlen;
2409 * Use poll to wait for a message with a timeout.
2412 pfd.events = POLLIN | POLLPRI;
2414 n = poll(&pfd, 1, 1000);
2415 } while (n == -1 && errno == EINTR);
2422 buf.maxlen = maxlen;
2423 buf.buf = (void *) reply;
2425 if (getmsg(fd, &buf, NULL, &flags) < 0)
2428 if (buf.len < sizeof(ulong)) {
2430 dbglog("dlpi response short (len=%d)\n", buf.len);
2434 if (reply->dl_primitive == expected_prim)
2438 if (reply->dl_primitive == DL_ERROR_ACK) {
2439 dbglog("dlpi error %d (unix errno %d) for prim %x\n",
2440 reply->error_ack.dl_errno, reply->error_ack.dl_unix_errno,
2441 reply->error_ack.dl_error_primitive);
2443 dbglog("dlpi unexpected response prim %x\n",
2444 reply->dl_primitive);
2452 * Return user specified netmask, modified by any mask we might determine
2453 * for address `addr' (in network byte order).
2454 * Here we scan through the system's list of interfaces, looking for
2455 * any non-point-to-point interfaces which might appear to be on the same
2456 * network as `addr'. If we find any, we OR in their netmask to the
2457 * user-specified netmask.
2463 u_int32_t mask, nmask, ina;
2464 struct ifreq *ifr, *ifend, ifreq;
2469 if (IN_CLASSA(addr)) /* determine network mask for address class */
2470 nmask = IN_CLASSA_NET;
2471 else if (IN_CLASSB(addr))
2472 nmask = IN_CLASSB_NET;
2474 nmask = IN_CLASSC_NET;
2475 /* class D nets are disallowed by bad_ip_adrs */
2476 mask = netmask | htonl(nmask);
2479 * Scan through the system's network interfaces.
2482 if (ioctl(ipfd, SIOCGIFNUM, &nif) < 0)
2485 ifc.ifc_len = nif * sizeof(struct ifreq);
2486 ifc.ifc_buf = (caddr_t) malloc(ifc.ifc_len);
2487 if (ifc.ifc_buf == 0)
2489 if (ioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {
2490 warn("Couldn't get system interface list: %m");
2494 ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
2495 for (ifr = ifc.ifc_req; ifr < ifend; ++ifr) {
2497 * Check the interface's internet address.
2499 if (ifr->ifr_addr.sa_family != AF_INET)
2501 ina = INET_ADDR(ifr->ifr_addr);
2502 if ((ntohl(ina) & nmask) != (addr & nmask))
2505 * Check that the interface is up, and not point-to-point or loopback.
2507 strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
2508 if (ioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0)
2510 if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
2514 * Get its netmask and OR it into our mask.
2516 if (ioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0)
2518 mask |= INET_ADDR(ifreq.ifr_addr);
2526 * logwtmp - write an accounting record to the /var/adm/wtmp file.
2529 logwtmp(line, name, host)
2530 const char *line, *name, *host;
2532 static struct utmpx utmpx;
2536 strncpy(utmpx.ut_user, name, sizeof(utmpx.ut_user));
2537 strncpy(utmpx.ut_line, line, sizeof(utmpx.ut_line));
2538 strncpy(utmpx.ut_host, host, sizeof(utmpx.ut_host));
2539 if (*host != '\0') {
2540 utmpx.ut_syslen = strlen(host) + 1;
2541 if (utmpx.ut_syslen > sizeof(utmpx.ut_host))
2542 utmpx.ut_syslen = sizeof(utmpx.ut_host);
2544 utmpx.ut_pid = getpid();
2545 utmpx.ut_type = USER_PROCESS;
2547 utmpx.ut_type = DEAD_PROCESS;
2549 gettimeofday(&utmpx.ut_tv, NULL);
2550 updwtmpx("/var/adm/wtmpx", &utmpx);
2554 * get_host_seed - return the serial number of this machine.
2561 if (sysinfo(SI_HW_SERIAL, buf, sizeof(buf)) < 0) {
2562 error("sysinfo: %m");
2565 return (int) strtoul(buf, NULL, 16);
2569 strioctl(fd, cmd, ptr, ilen, olen)
2570 int fd, cmd, ilen, olen;
2573 struct strioctl str;
2579 if (ioctl(fd, I_STR, &str) == -1)
2581 if (str.ic_len != olen)
2582 dbglog("strioctl: expected %d bytes, got %d for cmd %x\n",
2583 olen, str.ic_len, cmd);
2589 * lock - create a lock file for the named lock device
2592 #define LOCK_PREFIX "/var/spool/locks/LK."
2593 static char lock_file[40]; /* name of lock file created */
2603 if (stat(dev, &sbuf) < 0) {
2604 error("Can't get device number for %s: %m", dev);
2607 if ((sbuf.st_mode & S_IFMT) != S_IFCHR) {
2608 error("Can't lock %s: not a character device", dev);
2611 slprintf(lock_file, sizeof(lock_file), "%s%03d.%03d.%03d",
2612 LOCK_PREFIX, major(sbuf.st_dev),
2613 major(sbuf.st_rdev), minor(sbuf.st_rdev));
2615 while ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0) {
2617 && (fd = open(lock_file, O_RDONLY, 0)) >= 0) {
2618 /* Read the lock file to find out who has the device locked */
2619 n = read(fd, ascii_pid, 11);
2621 error("Can't read pid from lock file %s", lock_file);
2625 pid = atoi(ascii_pid);
2626 if (pid > 0 && kill(pid, 0) == -1 && errno == ESRCH) {
2627 /* pid no longer exists - remove the lock file */
2628 if (unlink(lock_file) == 0) {
2630 notice("Removed stale lock on %s (pid %d)",
2634 warn("Couldn't remove stale lock on %s",
2637 notice("Device %s is locked by pid %d",
2642 error("Can't create lock file %s: %m", lock_file);
2647 slprintf(ascii_pid, sizeof(ascii_pid), "%10d\n", getpid());
2648 write(fd, ascii_pid, 11);
2655 * unlock - remove our lockfile
2668 * cifroute - delete a route through the addresses given.
2671 cifroute(u, our, his)
2677 memset(&rt, 0, sizeof(rt));
2678 rt.rt_dst.sa_family = AF_INET;
2679 INET_ADDR(rt.rt_dst) = his;
2680 rt.rt_gateway.sa_family = AF_INET;
2681 INET_ADDR(rt.rt_gateway) = our;
2682 rt.rt_flags = RTF_HOST;
2684 if (ioctl(ipfd, SIOCDELRT, &rt) < 0) {
2685 error("Can't delete route: %m");
2693 * have_route_to - determine if the system has a route to the specified
2694 * IP address. Returns 0 if not, 1 if so, -1 if we can't tell.
2695 * `addr' is in network byte order.
2696 * For demand mode to work properly, we have to ignore routes
2697 * through our own interface.
2699 #ifndef T_CURRENT /* needed for Solaris 2.5 */
2700 #define T_CURRENT MI_T_CURRENT
2708 int fd, r, flags, i;
2710 struct T_optmgmt_req req;
2714 struct T_optmgmt_ack ack;
2715 unsigned char space[64];
2718 struct strbuf cbuf, dbuf;
2720 mib2_ipRouteEntry_t routes[8];
2721 mib2_ipRouteEntry_t *rp;
2723 fd = open(mux_dev_name, O_RDWR);
2725 warn("have_route_to: couldn't open %s: %m", mux_dev_name);
2729 req.req.PRIM_type = T_OPTMGMT_REQ;
2730 req.req.OPT_offset = (char *) &req.hdr - (char *) &req;
2731 req.req.OPT_length = sizeof(req.hdr);
2732 req.req.MGMT_flags = T_CURRENT;
2734 req.hdr.level = MIB2_IP;
2738 cbuf.buf = (char *) &req;
2739 cbuf.len = sizeof(req);
2741 if (putmsg(fd, &cbuf, NULL, 0) == -1) {
2742 warn("have_route_to: putmsg: %m");
2748 cbuf.buf = (char *) &ack;
2749 cbuf.maxlen = sizeof(ack);
2750 dbuf.buf = (char *) routes;
2751 dbuf.maxlen = sizeof(routes);
2753 r = getmsg(fd, &cbuf, &dbuf, &flags);
2755 warn("have_route_to: getmsg: %m");
2760 if (cbuf.len < sizeof(struct T_optmgmt_ack)
2761 || ack.ack.PRIM_type != T_OPTMGMT_ACK
2762 || ack.ack.MGMT_flags != T_SUCCESS
2763 || ack.ack.OPT_length < sizeof(struct opthdr)) {
2764 dbglog("have_route_to: bad message len=%d prim=%d",
2765 cbuf.len, ack.ack.PRIM_type);
2770 rh = (struct opthdr *) ((char *)&ack + ack.ack.OPT_offset);
2771 if (rh->level == 0 && rh->name == 0)
2773 if (rh->level != MIB2_IP || rh->name != MIB2_IP_21) {
2774 while (r == MOREDATA)
2775 r = getmsg(fd, NULL, &dbuf, &flags);
2780 nroutes = dbuf.len / sizeof(mib2_ipRouteEntry_t);
2781 for (rp = routes, i = 0; i < nroutes; ++i, ++rp) {
2782 if (rp->ipRouteMask != ~0) {
2783 dbglog("have_route_to: dest=%x gw=%x mask=%x\n",
2784 rp->ipRouteDest, rp->ipRouteNextHop,
2786 if (((addr ^ rp->ipRouteDest) & rp->ipRouteMask) == 0
2787 && rp->ipRouteNextHop != remote_addr)
2793 r = getmsg(fd, NULL, &dbuf, &flags);
2804 * get_pty - get a pty master/slave pair and chown the slave side to
2805 * the uid given. Assumes slave_name points to MAXPATHLEN bytes of space.
2808 get_pty(master_fdp, slave_fdp, slave_name, uid)
2817 mfd = open("/dev/ptmx", O_RDWR);
2819 error("Couldn't open pty master: %m");
2823 pty_name = ptsname(mfd);
2824 if (pty_name == NULL) {
2825 error("Couldn't get name of pty slave");
2829 if (chown(pty_name, uid, -1) < 0)
2830 warn("Couldn't change owner of pty slave: %m");
2831 if (chmod(pty_name, S_IRUSR | S_IWUSR) < 0)
2832 warn("Couldn't change permissions on pty slave: %m");
2833 if (unlockpt(mfd) < 0)
2834 warn("Couldn't unlock pty slave: %m");
2836 sfd = open(pty_name, O_RDWR);
2838 error("Couldn't open pty slave %s: %m", pty_name);
2842 if (ioctl(sfd, I_PUSH, "ptem") < 0)
2843 warn("Couldn't push ptem module on pty slave: %m");
2845 dbglog("Using %s", pty_name);
2846 strlcpy(slave_name, pty_name, MAXPATHLEN);